mirror of git://sourceware.org/git/glibc.git
4870 Commits
| Author | SHA1 | Message | Date |
|---|---|---|---|
Dmitry V. Levin
|
60e2846e26 |
sys/ptrace.h: remove obsolete Linux PTRACE_SEIZE_DEVEL constant [BZ #21928]
Remove enum __ptrace_flags along with the only constant it contains, PTRACE_SEIZE_DEVEL, from Linux's sys/ptrace.h files. This temporary development constant shouldn't have been added to sys/ptrace.h in the first place. It was introduced in Linux by commit v3.1-rc1~308^2~28 as a temporary part of new experimental PTRACE_SEIZE interface. Later, as PTRACE_SEIZE stabilized and lost its experimental status, this flag was removed from Linux by commit v3.4-rc1~109^2~20. * sysdeps/unix/sysv/linux/sys/ptrace.h (enum __ptrace_flags, PTRACE_SEIZE_DEVEL): Remove. * sysdeps/unix/sysv/linux/aarch64/sys/ptrace.h: Likewise. * sysdeps/unix/sysv/linux/ia64/sys/ptrace.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/sys/ptrace.h: Likewise. * sysdeps/unix/sysv/linux/s390/sys/ptrace.h: Likewise. * sysdeps/unix/sysv/linux/sparc/sys/ptrace.h: Likewise. |
|
Joseph Myers
|
3d452dabd1 |
Fix uc_* namespace (bug 21457).
The standard members of ucontext_t, in all standard versions with that type, are uc_link, uc_sigmask, uc_stack and uc_mcontext. The uc_* namespace is mostly reserved for additions to the structure. However, in XPG4.2, it's only reserved when <ucontext.h> is included, not when <signal.h> is included, while <signal.h> is required to define ucontext_t (but not allowed to make visible other symbols from <ucontext.h>). Thus, nonstandard members should avoid uc_* names. Some already do use __uc_*, but others don't; most architectures (all except ia64, I think) have a member uc_flags and some have additional members beyond that. This patch makes nonstandard members have an __ prefix unless __USE_MISC is defined. Members whose names indicate they are solely padding / reserved for future use are renamed unconditionally to use the __glibc_reserved1 naming convention. This is part of the preparation for a revised version of the mcontext_t / sigcontext patch to be able to eliminate all 13 of the miscellaneous XFAILs in conform/Makefile, rather than only 11 of them as at present (at least one further fix on top of this one will be needed for that as well). Tested for x86_64, and with build-many-glibcs.py. [BZ #21457] * sysdeps/arm/sys/ucontext.h (__ctx): Move undefine further down. (ucontext_t): Use __ctx with uc_flags. Rename uc_filler to __glibc_reserved1. * sysdeps/generic/sys/ucontext.h (__ctx): New macro. (ucontext_t): Use __ctx with uc_flags. * sysdeps/i386/sys/ucontext.h (__ctx): Move undefine further down. (__ctxt): Likewise. (ucontext_t): Use __ctx with uc_flags. Rename uc_filler to __glibc_reserved1. * sysdeps/m68k/sys/ucontext.h (__ctx): Move undefine further down. (ucontext_t): Use __ctx with uc_flags. Rename uc_filler to __glibc_reserved1. * sysdeps/mips/sys/ucontext.h (__ctx): Move undefine further down. (ucontext_t): Use __ctx with uc_flags. Rename uc_filler to __glibc_reserved1. * sysdeps/unix/sysv/linux/aarch64/sys/ucontext.h (__ctx): New macro. (ucontext_t): Use __ctx with uc_flags. * sysdeps/unix/sysv/linux/alpha/sys/ucontext.h (__ctx): New macro. (ucontext_t): Use __ctx with uc_flags. * sysdeps/unix/sysv/linux/arm/sys/ucontext.h (__ctx): New macro. (ucontext_t): Use __ctx with uc_flags and uc_regspace. * sysdeps/unix/sysv/linux/hppa/sys/ucontext.h (__ctx): New macro. (ucontext_t): Use __ctx with uc_flags. * sysdeps/unix/sysv/linux/m68k/sys/ucontext.h (__ctx): Move undefine further down. (ucontext_t): Use __ctx with uc_flags. Rename uc_filler to __glibc_reserved1. * sysdeps/unix/sysv/linux/mips/sys/ucontext.h (__ctx): Move undefine further down. (ucontext_t): Use __ctx with uc_flags. * sysdeps/unix/sysv/linux/nios2/sys/ucontext.h (__ctx): Move undefine further down. (ucontext_t): Use __ctx with uc_flags. * sysdeps/unix/sysv/linux/powerpc/sys/ucontext.h (ucontext_t): Use __ctx with uc_flags, uc_regs_ptr, uc_regs and uc_reg_space. Rename uc_pad to __glibc_reserved1. * sysdeps/unix/sysv/linux/s390/sys/ucontext.h (__ctx): Move undefine further down. (ucontext_t): Use __ctx with uc_flags. * sysdeps/unix/sysv/linux/sh/sys/ucontext.h (__ctx): Move undefine further down. (ucontext_t): Use __ctx with uc_flags. * sysdeps/unix/sysv/linux/sparc/sys/ucontext.h (ucontext_t): Use __ctx with uc_flags. * sysdeps/unix/sysv/linux/tile/sys/ucontext.h (__ctx): New macro. (ucontext_t): Use __ctx with uc_flags. * sysdeps/unix/sysv/linux/x86/sys/ucontext.h (ucontext_t): Use __ctx with uc_flags. |
|
Andreas Schwab
|
5797b410a8 | Fix s390 version of pt-longjmp.c | |
Siddhesh Poyarekar
|
36ada5f681 |
aarch64: Optimized memcpy for Qualcomm Falkor processor
This is an optimized implementation of the memcpy routine that gives a significant gain in performance for all sizes of copies on the Qualcomm Falkor processor. A detailed rationale of the implementation is written in a comment in the patch. This implementation improves time for copies up to 128 bytes by up to 15% and for larger copies by up to 35% in the glibc microbenchmark. The memcpy-random benchmark sees improvements in all sizes in the range of 13%-18%. Here are the full numbers extracted from the glibc microbenchmark using the commands: ../benchtests/scripts/compare_strings.py benchtests/bench-memcpy.out \ ../benchtests/scripts/benchout_strings.schema.json \ -base=__memcpy_generic length align1 align2 ../benchtests/scripts/compare_strings.py benchtests/bench-memcpy-large.out \ ../benchtests/scripts/benchout_strings.schema.json \ -base=__memcpy_generic length align1 align2 ../benchtests/scripts/compare_strings.py benchtests/bench-memcpy-random.out \ ../benchtests/scripts/benchout_strings.schema.json \ -base=__memcpy_generic max-size Function: memcpy __memcpy_thunderx __memcpy_falkor __memcpy_generic Variant: default ================================================================================ length=1,align1=0,align2=0: 33.59 (-115.00%) 15.62 (0.00%) 15.62 length=1,align1=0,align2=0: 16.41 (-10.53%) 14.06 (5.26%) 14.84 length=1,align1=0,align2=0: 14.84 (0.00%) 14.84 (0.00%) 14.84 length=1,align1=0,align2=0: 15.62 (-5.26%) 14.06 (5.26%) 14.84 length=2,align1=0,align2=0: 15.62 (-5.26%) 14.06 (5.26%) 14.84 length=2,align1=1,align2=0: 15.62 (-5.26%) 14.06 (5.26%) 14.84 length=2,align1=0,align2=1: 14.84 (0.00%) 14.06 (5.26%) 14.84 length=2,align1=1,align2=1: 14.84 (-5.56%) 14.06 (0.00%) 14.06 length=4,align1=0,align2=0: 14.06 (0.00%) 14.06 (0.00%) 14.06 length=4,align1=2,align2=0: 14.06 (-5.88%) 14.06 (-5.88%) 13.28 length=4,align1=0,align2=2: 14.06 (0.00%) 14.06 (0.00%) 14.06 length=4,align1=2,align2=2: 14.06 (-5.88%) 14.06 (-5.88%) 13.28 length=8,align1=0,align2=0: 14.84 (-5.56%) 13.28 (5.56%) 14.06 length=8,align1=3,align2=0: 14.06 (0.00%) 13.28 (5.56%) 14.06 length=8,align1=0,align2=3: 13.28 (0.00%) 13.28 (0.00%) 13.28 length=8,align1=3,align2=3: 13.28 (-6.25%) 13.28 (-6.25%) 12.50 length=16,align1=0,align2=0: 13.28 (0.00%) 13.28 (0.00%) 13.28 length=16,align1=4,align2=0: 13.28 (0.00%) 12.50 (5.88%) 13.28 length=16,align1=0,align2=4: 13.28 (0.00%) 13.28 (0.00%) 13.28 length=16,align1=4,align2=4: 13.28 (-6.25%) 12.50 (0.00%) 12.50 length=32,align1=0,align2=0: 14.06 (0.00%) 12.50 (11.11%) 14.06 length=32,align1=5,align2=0: 13.28 (0.00%) 12.50 (5.88%) 13.28 length=32,align1=0,align2=5: 14.06 (-5.88%) 12.50 (5.88%) 13.28 length=32,align1=5,align2=5: 14.06 (-5.88%) 12.50 (5.88%) 13.28 length=64,align1=0,align2=0: 14.06 (-5.88%) 13.28 (0.00%) 13.28 length=64,align1=6,align2=0: 13.28 (0.00%) 13.28 (0.00%) 13.28 length=64,align1=0,align2=6: 14.06 (5.26%) 14.06 (5.26%) 14.84 length=64,align1=6,align2=6: 14.84 (-11.77%) 14.06 (-5.88%) 13.28 length=128,align1=0,align2=0: 17.19 (-4.76%) 14.84 (9.52%) 16.41 length=128,align1=7,align2=0: 16.41 (4.55%) 15.62 (9.09%) 17.19 length=128,align1=0,align2=7: 16.41 (0.00%) 14.06 (14.29%) 16.41 length=128,align1=7,align2=7: 16.41 (4.55%) 15.62 (9.09%) 17.19 length=256,align1=0,align2=0: 21.88 (-3.70%) 21.09 (0.00%) 21.09 length=256,align1=8,align2=0: 21.09 (-3.85%) 21.09 (-3.85%) 20.31 length=256,align1=0,align2=8: 20.31 (-4.00%) 20.31 (-4.00%) 19.53 length=256,align1=8,align2=8: 21.88 (-7.69%) 20.31 (0.00%) 20.31 length=512,align1=0,align2=0: 28.91 (-2.78%) 28.91 (-2.78%) 28.12 length=512,align1=9,align2=0: 30.47 (-2.63%) 30.47 (-2.63%) 29.69 length=512,align1=0,align2=9: 29.69 (0.00%) 29.69 (0.00%) 29.69 length=512,align1=9,align2=9: 28.12 (-2.86%) 28.12 (-2.86%) 27.34 length=1024,align1=0,align2=0: 44.53 (0.00%) 44.53 (0.00%) 44.53 length=1024,align1=10,align2=0: 50.00 (0.00%) 50.00 (0.00%) 50.00 length=1024,align1=0,align2=10: 49.22 (1.56%) 50.78 (-1.56%) 50.00 length=1024,align1=10,align2=10: 44.53 (-1.79%) 43.75 (0.00%) 43.75 length=2048,align1=0,align2=0: 77.34 (-1.02%) 76.56 (0.00%) 76.56 length=2048,align1=11,align2=0: 89.84 (0.00%) 89.84 (0.00%) 89.84 length=2048,align1=0,align2=11: 89.84 (0.00%) 89.84 (0.00%) 89.84 length=2048,align1=11,align2=11: 75.78 (0.00%) 75.78 (0.00%) 75.78 length=4096,align1=0,align2=0: 141.41 (-0.56%) 140.62 (0.00%) 140.62 length=4096,align1=12,align2=0: 171.09 (-0.46%) 170.31 (0.00%) 170.31 length=4096,align1=0,align2=12: 170.31 (0.00%) 170.31 (0.00%) 170.31 length=4096,align1=12,align2=12: 140.62 (0.00%) 140.62 (0.00%) 140.62 length=8192,align1=0,align2=0: 278.91 (-0.28%) 275.78 (0.84%) 278.12 length=8192,align1=13,align2=0: 338.28 (0.23%) 335.94 (0.92%) 339.06 length=8192,align1=0,align2=13: 338.28 (0.00%) 455.47 (-34.64%) 338.28 length=8192,align1=13,align2=13: 278.12 (-0.28%) 275.78 (0.56%) 277.34 length=16384,align1=0,align2=0: 535.94 (-0.15%) 531.25 (0.73%) 535.16 length=16384,align1=14,align2=0: 659.38 (0.12%) 659.38 (0.12%) 660.16 length=16384,align1=0,align2=14: 659.38 (0.00%) 657.03 (0.36%) 659.38 length=16384,align1=14,align2=14: 535.16 (0.44%) 532.81 (0.87%) 537.50 length=32768,align1=0,align2=0: 1260.94 (10.68%) 1121.88 (20.53%) 1411.72 length=32768,align1=15,align2=0: 1368.75 (10.02%) 1376.56 (9.50%) 1521.09 length=32768,align1=0,align2=15: 1333.59 (10.91%) 1373.44 (8.25%) 1496.88 length=32768,align1=15,align2=15: 1256.25 (13.96%) 1125.78 (22.90%) 1460.16 length=65536,align1=0,align2=0: 2853.91 (30.11%) 2589.06 (36.60%) 4083.59 length=65536,align1=16,align2=0: 2850.00 (30.14%) 2589.84 (36.52%) 4079.69 length=65536,align1=0,align2=16: 2853.12 (30.60%) 2589.84 (37.00%) 4110.94 length=65536,align1=16,align2=16: 2850.78 (30.07%) 2589.06 (36.49%) 4076.56 length=0,align1=0,align2=0: 15.62 (-5.26%) 16.41 (-10.53%) 14.84 length=0,align1=0,align2=0: 14.84 (-5.56%) 14.84 (-5.56%) 14.06 length=0,align1=0,align2=0: 14.84 (0.00%) 14.84 (0.00%) 14.84 length=0,align1=0,align2=0: 16.41 (-16.67%) 14.84 (-5.56%) 14.06 length=1,align1=0,align2=0: 15.62 (4.76%) 15.62 (4.76%) 16.41 length=1,align1=1,align2=0: 15.62 (0.00%) 14.84 (5.00%) 15.62 length=1,align1=0,align2=1: 14.84 (0.00%) 14.84 (0.00%) 14.84 length=1,align1=1,align2=1: 14.84 (0.00%) 14.06 (5.26%) 14.84 length=2,align1=0,align2=0: 14.84 (0.00%) 14.06 (5.26%) 14.84 length=2,align1=2,align2=0: 14.84 (0.00%) 14.06 (5.26%) 14.84 length=2,align1=0,align2=2: 14.84 (-5.56%) 14.06 (0.00%) 14.06 length=2,align1=2,align2=2: 14.84 (0.00%) 14.06 (5.26%) 14.84 length=3,align1=0,align2=0: 14.84 (0.00%) 14.84 (0.00%) 14.84 length=3,align1=3,align2=0: 14.84 (-5.56%) 14.06 (0.00%) 14.06 length=3,align1=0,align2=3: 15.62 (-11.11%) 14.06 (0.00%) 14.06 length=3,align1=3,align2=3: 14.84 (0.00%) 14.06 (5.26%) 14.84 length=4,align1=0,align2=0: 17.97 (-27.78%) 14.06 (0.00%) 14.06 length=4,align1=4,align2=0: 13.28 (5.56%) 14.06 (0.00%) 14.06 length=4,align1=0,align2=4: 14.06 (0.00%) 13.28 (5.56%) 14.06 length=4,align1=4,align2=4: 13.28 (5.56%) 13.28 (5.56%) 14.06 length=5,align1=0,align2=0: 13.28 (5.56%) 13.28 (5.56%) 14.06 length=5,align1=5,align2=0: 14.06 (0.00%) 14.06 (0.00%) 14.06 length=5,align1=0,align2=5: 14.06 (0.00%) 13.28 (5.56%) 14.06 length=5,align1=5,align2=5: 14.06 (-5.88%) 14.06 (-5.88%) 13.28 length=6,align1=0,align2=0: 14.06 (-5.88%) 14.06 (-5.88%) 13.28 length=6,align1=6,align2=0: 14.06 (0.00%) 14.06 (0.00%) 14.06 length=6,align1=0,align2=6: 14.06 (0.00%) 13.28 (5.56%) 14.06 length=6,align1=6,align2=6: 14.06 (0.00%) 13.28 (5.56%) 14.06 length=7,align1=0,align2=0: 14.84 (-11.77%) 14.06 (-5.88%) 13.28 length=7,align1=7,align2=0: 13.28 (0.00%) 14.06 (-5.88%) 13.28 length=7,align1=0,align2=7: 14.06 (0.00%) 14.06 (0.00%) 14.06 length=7,align1=7,align2=7: 14.06 (0.00%) 14.06 (0.00%) 14.06 length=8,align1=0,align2=0: 14.06 (-5.88%) 13.28 (0.00%) 13.28 length=8,align1=8,align2=0: 14.06 (0.00%) 13.28 (5.56%) 14.06 length=8,align1=0,align2=8: 13.28 (0.00%) 13.28 (0.00%) 13.28 length=8,align1=8,align2=8: 14.06 (-5.88%) 13.28 (0.00%) 13.28 length=9,align1=0,align2=0: 13.28 (0.00%) 13.28 (0.00%) 13.28 length=9,align1=9,align2=0: 13.28 (0.00%) 13.28 (0.00%) 13.28 length=9,align1=0,align2=9: 13.28 (0.00%) 14.06 (-5.88%) 13.28 length=9,align1=9,align2=9: 14.06 (-5.88%) 13.28 (0.00%) 13.28 length=10,align1=0,align2=0: 14.06 (0.00%) 13.28 (5.56%) 14.06 length=10,align1=10,align2=0: 14.06 (-5.88%) 14.06 (-5.88%) 13.28 length=10,align1=0,align2=10: 14.06 (-5.88%) 13.28 (0.00%) 13.28 length=10,align1=10,align2=10: 14.06 (0.00%) 13.28 (5.56%) 14.06 length=11,align1=0,align2=0: 14.06 (-5.88%) 13.28 (0.00%) 13.28 length=11,align1=11,align2=0: 14.06 (-5.88%) 13.28 (0.00%) 13.28 length=11,align1=0,align2=11: 13.28 (0.00%) 13.28 (0.00%) 13.28 length=11,align1=11,align2=11: 13.28 (0.00%) 13.28 (0.00%) 13.28 length=12,align1=0,align2=0: 14.06 (-5.88%) 13.28 (0.00%) 13.28 length=12,align1=12,align2=0: 14.06 (-5.88%) 13.28 (0.00%) 13.28 length=12,align1=0,align2=12: 14.06 (-5.88%) 13.28 (0.00%) 13.28 length=12,align1=12,align2=12: 14.06 (0.00%) 13.28 (5.56%) 14.06 length=13,align1=0,align2=0: 14.06 (-5.88%) 13.28 (0.00%) 13.28 length=13,align1=13,align2=0: 14.06 (-5.88%) 13.28 (0.00%) 13.28 length=13,align1=0,align2=13: 14.06 (-5.88%) 13.28 (0.00%) 13.28 length=13,align1=13,align2=13: 13.28 (0.00%) 13.28 (0.00%) 13.28 length=14,align1=0,align2=0: 13.28 (0.00%) 13.28 (0.00%) 13.28 length=14,align1=14,align2=0: 13.28 (5.56%) 13.28 (5.56%) 14.06 length=14,align1=0,align2=14: 14.06 (-5.88%) 13.28 (0.00%) 13.28 length=14,align1=14,align2=14: 14.06 (-5.88%) 13.28 (0.00%) 13.28 length=15,align1=0,align2=0: 14.06 (-5.88%) 13.28 (0.00%) 13.28 length=15,align1=15,align2=0: 14.06 (-5.88%) 14.06 (-5.88%) 13.28 length=15,align1=0,align2=15: 13.28 (0.00%) 13.28 (0.00%) 13.28 length=15,align1=15,align2=15: 13.28 (0.00%) 14.06 (-5.88%) 13.28 length=16,align1=0,align2=0: 14.06 (-5.88%) 13.28 (0.00%) 13.28 length=16,align1=16,align2=0: 13.28 (5.56%) 14.06 (0.00%) 14.06 length=16,align1=0,align2=16: 14.84 (-11.77%) 13.28 (0.00%) 13.28 length=16,align1=16,align2=16: 13.28 (-6.25%) 12.50 (0.00%) 12.50 length=17,align1=0,align2=0: 14.06 (-5.88%) 12.50 (5.88%) 13.28 length=17,align1=17,align2=0: 14.84 (-11.77%) 12.50 (5.88%) 13.28 length=17,align1=0,align2=17: 14.84 (-5.56%) 12.50 (11.11%) 14.06 length=17,align1=17,align2=17: 14.84 (-11.77%) 12.50 (5.88%) 13.28 length=18,align1=0,align2=0: 14.06 (0.00%) 12.50 (11.11%) 14.06 length=18,align1=18,align2=0: 13.28 (5.56%) 12.50 (11.11%) 14.06 length=18,align1=0,align2=18: 14.06 (-5.88%) 12.50 (5.88%) 13.28 length=18,align1=18,align2=18: 14.06 (0.00%) 12.50 (11.11%) 14.06 length=19,align1=0,align2=0: 14.06 (-5.88%) 13.28 (0.00%) 13.28 length=19,align1=19,align2=0: 14.06 (-5.88%) 13.28 (0.00%) 13.28 length=19,align1=0,align2=19: 14.84 (-5.56%) 12.50 (11.11%) 14.06 length=19,align1=19,align2=19: 14.06 (-5.88%) 12.50 (5.88%) 13.28 length=20,align1=0,align2=0: 14.84 (-11.77%) 12.50 (5.88%) 13.28 length=20,align1=20,align2=0: 14.06 (0.00%) 12.50 (11.11%) 14.06 length=20,align1=0,align2=20: 14.06 (-5.88%) 12.50 (5.88%) 13.28 length=20,align1=20,align2=20: 14.06 (0.00%) 13.28 (5.56%) 14.06 length=21,align1=0,align2=0: 14.84 (-5.56%) 12.50 (11.11%) 14.06 length=21,align1=21,align2=0: 14.06 (-5.88%) 13.28 (0.00%) 13.28 length=21,align1=0,align2=21: 14.84 (-11.77%) 12.50 (5.88%) 13.28 length=21,align1=21,align2=21: 13.28 (5.56%) 13.28 (5.56%) 14.06 length=22,align1=0,align2=0: 14.06 (-5.88%) 12.50 (5.88%) 13.28 length=22,align1=22,align2=0: 14.06 (-5.88%) 13.28 (0.00%) 13.28 length=22,align1=0,align2=22: 14.06 (0.00%) 12.50 (11.11%) 14.06 length=22,align1=22,align2=22: 14.06 (0.00%) 12.50 (11.11%) 14.06 length=23,align1=0,align2=0: 14.06 (-5.88%) 12.50 (5.88%) 13.28 length=23,align1=23,align2=0: 14.06 (-5.88%) 13.28 (0.00%) 13.28 length=23,align1=0,align2=23: 14.06 (-5.88%) 12.50 (5.88%) 13.28 length=23,align1=23,align2=23: 14.06 (-5.88%) 13.28 (0.00%) 13.28 length=24,align1=0,align2=0: 14.06 (-5.88%) 12.50 (5.88%) 13.28 length=24,align1=24,align2=0: 14.06 (0.00%) 13.28 (5.56%) 14.06 length=24,align1=0,align2=24: 14.84 (-11.77%) 12.50 (5.88%) 13.28 length=24,align1=24,align2=24: 14.06 (-5.88%) 13.28 (0.00%) 13.28 length=25,align1=0,align2=0: 14.06 (0.00%) 12.50 (11.11%) 14.06 length=25,align1=25,align2=0: 14.06 (0.00%) 13.28 (5.56%) 14.06 length=25,align1=0,align2=25: 14.06 (0.00%) 12.50 (11.11%) 14.06 length=25,align1=25,align2=25: 13.28 (0.00%) 13.28 (0.00%) 13.28 length=26,align1=0,align2=0: 14.06 (-5.88%) 12.50 (5.88%) 13.28 length=26,align1=26,align2=0: 14.06 (0.00%) 13.28 (5.56%) 14.06 length=26,align1=0,align2=26: 14.06 (-5.88%) 12.50 (5.88%) 13.28 length=26,align1=26,align2=26: 14.06 (0.00%) 13.28 (5.56%) 14.06 length=27,align1=0,align2=0: 14.06 (-5.88%) 12.50 (5.88%) 13.28 length=27,align1=27,align2=0: 14.06 (-5.88%) 12.50 (5.88%) 13.28 length=27,align1=0,align2=27: 14.06 (-5.88%) 12.50 (5.88%) 13.28 length=27,align1=27,align2=27: 14.06 (0.00%) 12.50 (11.11%) 14.06 length=28,align1=0,align2=0: 14.06 (-5.88%) 12.50 (5.88%) 13.28 length=28,align1=28,align2=0: 14.06 (0.00%) 12.50 (11.11%) 14.06 length=28,align1=0,align2=28: 14.06 (0.00%) 12.50 (11.11%) 14.06 length=28,align1=28,align2=28: 14.84 (-11.77%) 13.28 (0.00%) 13.28 length=29,align1=0,align2=0: 14.06 (-5.88%) 12.50 (5.88%) 13.28 length=29,align1=29,align2=0: 13.28 (0.00%) 12.50 (5.88%) 13.28 length=29,align1=0,align2=29: 14.06 (0.00%) 12.50 (11.11%) 14.06 length=29,align1=29,align2=29: 13.28 (5.56%) 12.50 (11.11%) 14.06 length=30,align1=0,align2=0: 14.06 (-5.88%) 12.50 (5.88%) 13.28 length=30,align1=30,align2=0: 13.28 (5.56%) 12.50 (11.11%) 14.06 length=30,align1=0,align2=30: 14.06 (-5.88%) 12.50 (5.88%) 13.28 length=30,align1=30,align2=30: 13.28 (0.00%) 12.50 (5.88%) 13.28 length=31,align1=0,align2=0: 13.28 (0.00%) 12.50 (5.88%) 13.28 length=31,align1=31,align2=0: 14.06 (0.00%) 12.50 (11.11%) 14.06 length=31,align1=0,align2=31: 13.28 (0.00%) 12.50 (5.88%) 13.28 length=31,align1=31,align2=31: 14.06 (0.00%) 12.50 (11.11%) 14.06 length=48,align1=0,align2=0: 14.06 (0.00%) 14.06 (0.00%) 14.06 length=48,align1=3,align2=0: 14.06 (0.00%) 14.06 (0.00%) 14.06 length=48,align1=0,align2=3: 14.06 (-5.88%) 14.06 (-5.88%) 13.28 length=48,align1=3,align2=3: 13.28 (5.56%) 14.06 (0.00%) 14.06 length=80,align1=0,align2=0: 15.62 (-11.11%) 14.84 (-5.56%) 14.06 length=80,align1=5,align2=0: 15.62 (-11.11%) 16.41 (-16.67%) 14.06 length=80,align1=0,align2=5: 14.06 (0.00%) 15.62 (-11.11%) 14.06 length=80,align1=5,align2=5: 15.62 (-5.26%) 17.19 (-15.79%) 14.84 length=96,align1=0,align2=0: 14.06 (0.00%) 14.84 (-5.56%) 14.06 length=96,align1=6,align2=0: 14.84 (-5.56%) 16.41 (-16.67%) 14.06 length=96,align1=0,align2=6: 14.06 (0.00%) 14.84 (-5.56%) 14.06 length=96,align1=6,align2=6: 14.84 (-5.56%) 17.19 (-22.22%) 14.06 length=112,align1=0,align2=0: 17.19 (-4.76%) 14.06 (14.29%) 16.41 length=112,align1=7,align2=0: 17.19 (0.00%) 16.41 (4.55%) 17.19 length=112,align1=0,align2=7: 16.41 (0.00%) 14.84 (9.52%) 16.41 length=112,align1=7,align2=7: 17.19 (0.00%) 17.19 (0.00%) 17.19 length=144,align1=0,align2=0: 17.19 (-10.00%) 17.97 (-15.00%) 15.62 length=144,align1=9,align2=0: 17.19 (-4.76%) 18.75 (-14.29%) 16.41 length=144,align1=0,align2=9: 20.31 (-8.33%) 18.75 (0.00%) 18.75 length=144,align1=9,align2=9: 18.75 (-4.35%) 18.75 (-4.35%) 17.97 length=160,align1=0,align2=0: 18.75 (-4.35%) 17.97 (0.00%) 17.97 length=160,align1=10,align2=0: 18.75 (4.00%) 18.75 (4.00%) 19.53 length=160,align1=0,align2=10: 19.53 (-4.17%) 17.97 (4.17%) 18.75 length=160,align1=10,align2=10: 18.75 (-4.35%) 18.75 (-4.35%) 17.97 length=176,align1=0,align2=0: 18.75 (-4.35%) 17.19 (4.35%) 17.97 length=176,align1=11,align2=0: 19.53 (0.00%) 19.53 (0.00%) 19.53 length=176,align1=0,align2=11: 19.53 (-4.17%) 18.75 (0.00%) 18.75 length=176,align1=11,align2=11: 18.75 (0.00%) 17.97 (4.17%) 18.75 length=192,align1=0,align2=0: 18.75 (0.00%) 17.97 (4.17%) 18.75 length=192,align1=12,align2=0: 21.09 (-8.00%) 18.75 (4.00%) 19.53 length=192,align1=0,align2=12: 18.75 (0.00%) 18.75 (0.00%) 18.75 length=192,align1=12,align2=12: 18.75 (0.00%) 17.97 (4.17%) 18.75 length=208,align1=0,align2=0: 17.97 (0.00%) 20.31 (-13.04%) 17.97 length=208,align1=13,align2=0: 19.53 (7.41%) 21.09 (0.00%) 21.09 length=208,align1=0,align2=13: 23.44 (-11.11%) 21.09 (0.00%) 21.09 length=208,align1=13,align2=13: 21.09 (-3.85%) 21.09 (-3.85%) 20.31 length=224,align1=0,align2=0: 21.09 (-8.00%) 20.31 (-4.00%) 19.53 length=224,align1=14,align2=0: 23.44 (-11.11%) 20.31 (3.70%) 21.09 length=224,align1=0,align2=14: 21.09 (3.57%) 20.31 (7.14%) 21.88 length=224,align1=14,align2=14: 20.31 (0.00%) 19.53 (3.85%) 20.31 length=240,align1=0,align2=0: 20.31 (-4.00%) 19.53 (0.00%) 19.53 length=240,align1=15,align2=0: 22.66 (0.00%) 20.31 (10.34%) 22.66 length=240,align1=0,align2=15: 20.31 (-4.00%) 20.31 (-4.00%) 19.53 length=240,align1=15,align2=15: 21.88 (0.00%) 21.09 (3.57%) 21.88 length=272,align1=0,align2=0: 20.31 (0.00%) 28.12 (-38.46%) 20.31 length=272,align1=17,align2=0: 22.66 (0.00%) 27.34 (-20.69%) 22.66 length=272,align1=0,align2=17: 25.78 (-10.00%) 28.12 (-20.00%) 23.44 length=272,align1=17,align2=17: 22.66 (-3.57%) 27.34 (-25.00%) 21.88 length=288,align1=0,align2=0: 23.44 (-7.14%) 27.34 (-25.00%) 21.88 length=288,align1=18,align2=0: 22.66 (0.00%) 27.34 (-20.69%) 22.66 length=288,align1=0,align2=18: 23.44 (-3.45%) 25.00 (-10.35%) 22.66 length=288,align1=18,align2=18: 22.66 (-3.57%) 21.88 (0.00%) 21.88 length=304,align1=0,align2=0: 21.88 (0.00%) 21.88 (0.00%) 21.88 length=304,align1=19,align2=0: 23.44 (-3.45%) 22.66 (0.00%) 22.66 length=304,align1=0,align2=19: 22.66 (0.00%) 22.66 (0.00%) 22.66 length=304,align1=19,align2=19: 22.66 (-3.57%) 21.88 (0.00%) 21.88 length=320,align1=0,align2=0: 22.66 (-3.57%) 21.88 (0.00%) 21.88 length=320,align1=20,align2=0: 22.66 (0.00%) 22.66 (0.00%) 22.66 length=320,align1=0,align2=20: 22.66 (0.00%) 22.66 (0.00%) 22.66 length=320,align1=20,align2=20: 22.66 (-3.57%) 21.88 (0.00%) 21.88 length=336,align1=0,align2=0: 21.88 (0.00%) 24.22 (-10.71%) 21.88 length=336,align1=21,align2=0: 22.66 (0.00%) 25.00 (-10.35%) 22.66 length=336,align1=0,align2=21: 25.78 (0.00%) 25.00 (3.03%) 25.78 length=336,align1=21,align2=21: 25.00 (0.00%) 23.44 (6.25%) 25.00 length=352,align1=0,align2=0: 24.22 (0.00%) 24.22 (0.00%) 24.22 length=352,align1=22,align2=0: 25.00 (0.00%) 25.00 (0.00%) 25.00 length=352,align1=0,align2=22: 25.00 (-3.23%) 25.00 (-3.23%) 24.22 length=352,align1=22,align2=22: 25.00 (-3.23%) 24.22 (0.00%) 24.22 length=368,align1=0,align2=0: 25.00 (-3.23%) 23.44 (3.23%) 24.22 length=368,align1=23,align2=0: 25.00 (0.00%) 24.22 (3.12%) 25.00 length=368,align1=0,align2=23: 25.00 (-3.23%) 25.00 (-3.23%) 24.22 length=368,align1=23,align2=23: 25.00 (-6.67%) 23.44 (0.00%) 23.44 length=384,align1=0,align2=0: 24.22 (0.00%) 24.22 (0.00%) 24.22 length=384,align1=24,align2=0: 25.00 (0.00%) 24.22 (3.12%) 25.00 length=384,align1=0,align2=24: 25.00 (0.00%) 25.78 (-3.12%) 25.00 length=384,align1=24,align2=24: 24.22 (-3.33%) 23.44 (0.00%) 23.44 length=400,align1=0,align2=0: 25.00 (-3.23%) 26.56 (-9.68%) 24.22 length=400,align1=25,align2=0: 25.78 (-3.12%) 27.34 (-9.38%) 25.00 length=400,align1=0,align2=25: 27.34 (0.00%) 27.34 (0.00%) 27.34 length=400,align1=25,align2=25: 26.56 (0.00%) 25.78 (2.94%) 26.56 length=416,align1=0,align2=0: 26.56 (-3.03%) 25.78 (0.00%) 25.78 length=416,align1=26,align2=0: 28.12 (-2.86%) 27.34 (0.00%) 27.34 length=416,align1=0,align2=26: 27.34 (-2.94%) 28.12 (-5.88%) 26.56 length=416,align1=26,align2=26: 25.78 (0.00%) 26.56 (-3.03%) 25.78 length=432,align1=0,align2=0: 27.34 (-2.94%) 25.78 (2.94%) 26.56 length=432,align1=27,align2=0: 28.12 (-2.86%) 27.34 (0.00%) 27.34 length=432,align1=0,align2=27: 27.34 (0.00%) 28.12 (-2.86%) 27.34 length=432,align1=27,align2=27: 25.78 (0.00%) 25.78 (0.00%) 25.78 length=448,align1=0,align2=0: 26.56 (-3.03%) 25.78 (0.00%) 25.78 length=448,align1=28,align2=0: 27.34 (0.00%) 27.34 (0.00%) 27.34 length=448,align1=0,align2=28: 27.34 (0.00%) 28.12 (-2.86%) 27.34 length=448,align1=28,align2=28: 25.78 (0.00%) 25.78 (0.00%) 25.78 length=464,align1=0,align2=0: 25.78 (0.00%) 28.12 (-9.09%) 25.78 length=464,align1=29,align2=0: 28.12 (-2.86%) 29.69 (-8.57%) 27.34 length=464,align1=0,align2=29: 30.47 (0.00%) 30.47 (0.00%) 30.47 length=464,align1=29,align2=29: 28.12 (0.00%) 27.34 (2.78%) 28.12 length=480,align1=0,align2=0: 29.69 (-5.56%) 28.12 (0.00%) 28.12 length=480,align1=30,align2=0: 31.25 (-2.56%) 29.69 (2.56%) 30.47 length=480,align1=0,align2=30: 29.69 (0.00%) 30.47 (-2.63%) 29.69 length=480,align1=30,align2=30: 28.12 (0.00%) 28.12 (0.00%) 28.12 length=496,align1=0,align2=0: 28.12 (0.00%) 27.34 (2.78%) 28.12 length=496,align1=31,align2=0: 30.47 (-2.63%) 29.69 (0.00%) 29.69 length=496,align1=0,align2=31: 29.69 (0.00%) 30.47 (-2.63%) 29.69 length=496,align1=31,align2=31: 28.12 (-2.86%) 28.12 (-2.86%) 27.34 length=1024,align1=0,align2=0: 44.53 (0.00%) 44.53 (0.00%) 44.53 length=1024,align1=32,align2=0: 44.53 (-1.79%) 44.53 (-1.79%) 43.75 length=1024,align1=0,align2=32: 44.53 (-1.79%) 43.75 (0.00%) 43.75 length=1024,align1=32,align2=32: 43.75 (1.75%) 43.75 (1.75%) 44.53 length=1056,align1=0,align2=0: 46.88 (-1.69%) 46.88 (-1.69%) 46.09 length=1056,align1=33,align2=0: 53.12 (0.00%) 52.34 (1.47%) 53.12 length=1056,align1=0,align2=33: 52.34 (0.00%) 53.12 (-1.49%) 52.34 length=1056,align1=33,align2=33: 46.09 (0.00%) 46.88 (-1.69%) 46.09 length=1088,align1=0,align2=0: 46.88 (-1.69%) 46.09 (0.00%) 46.09 length=1088,align1=34,align2=0: 52.34 (0.00%) 52.34 (0.00%) 52.34 length=1088,align1=0,align2=34: 53.12 (-3.03%) 53.12 (-3.03%) 51.56 length=1088,align1=34,align2=34: 46.09 (0.00%) 46.88 (-1.69%) 46.09 length=1120,align1=0,align2=0: 49.22 (-1.61%) 48.44 (0.00%) 48.44 length=1120,align1=35,align2=0: 54.69 (1.41%) 55.47 (0.00%) 55.47 length=1120,align1=0,align2=35: 57.03 (0.00%) 55.47 (2.74%) 57.03 length=1120,align1=35,align2=35: 48.44 (0.00%) 49.22 (-1.61%) 48.44 length=1152,align1=0,align2=0: 47.66 (1.61%) 48.44 (0.00%) 48.44 length=1152,align1=36,align2=0: 55.47 (-1.43%) 55.47 (-1.43%) 54.69 length=1152,align1=0,align2=36: 58.59 (-1.35%) 55.47 (4.05%) 57.81 length=1152,align1=36,align2=36: 48.44 (0.00%) 49.22 (-1.61%) 48.44 length=1184,align1=0,align2=0: 53.12 (-3.03%) 50.78 (1.52%) 51.56 length=1184,align1=37,align2=0: 61.72 (-2.60%) 57.03 (5.19%) 60.16 length=1184,align1=0,align2=37: 62.50 (-1.27%) 57.03 (7.60%) 61.72 length=1184,align1=37,align2=37: 53.12 (-1.49%) 50.78 (2.99%) 52.34 length=1216,align1=0,align2=0: 53.91 (-4.55%) 50.78 (1.52%) 51.56 length=1216,align1=38,align2=0: 60.94 (0.00%) 57.03 (6.41%) 60.94 length=1216,align1=0,align2=38: 60.16 (0.00%) 57.81 (3.90%) 60.16 length=1216,align1=38,align2=38: 52.34 (-1.52%) 50.00 (3.03%) 51.56 length=1248,align1=0,align2=0: 54.69 (-2.94%) 53.12 (0.00%) 53.12 length=1248,align1=39,align2=0: 64.06 (-1.23%) 60.16 (4.94%) 63.28 length=1248,align1=0,align2=39: 60.94 (-2.63%) 60.16 (-1.32%) 59.38 length=1248,align1=39,align2=39: 53.12 (0.00%) 52.34 (1.47%) 53.12 length=1280,align1=0,align2=0: 52.34 (-1.52%) 52.34 (-1.52%) 51.56 length=1280,align1=40,align2=0: 61.72 (3.66%) 59.38 (7.32%) 64.06 length=1280,align1=0,align2=40: 60.94 (-2.63%) 60.16 (-1.32%) 59.38 length=1280,align1=40,align2=40: 52.34 (-1.52%) 52.34 (-1.52%) 51.56 length=1312,align1=0,align2=0: 54.69 (-1.45%) 55.47 (-2.90%) 53.91 length=1312,align1=41,align2=0: 63.28 (0.00%) 62.50 (1.23%) 63.28 length=1312,align1=0,align2=41: 62.50 (0.00%) 62.50 (0.00%) 62.50 length=1312,align1=41,align2=41: 53.91 (0.00%) 54.69 (-1.45%) 53.91 length=1344,align1=0,align2=0: 54.69 (0.00%) 54.69 (0.00%) 54.69 length=1344,align1=42,align2=0: 62.50 (0.00%) 62.50 (0.00%) 62.50 length=1344,align1=0,align2=42: 62.50 (-1.27%) 62.50 (-1.27%) 61.72 length=1344,align1=42,align2=42: 53.91 (0.00%) 53.91 (0.00%) 53.91 length=1376,align1=0,align2=0: 65.62 (-16.67%) 68.75 (-22.22%) 56.25 length=1376,align1=43,align2=0: 71.88 (-9.52%) 73.44 (-11.90%) 65.62 length=1376,align1=0,align2=43: 72.66 (-12.05%) 74.22 (-14.46%) 64.84 length=1376,align1=43,align2=43: 64.06 (-13.89%) 67.97 (-20.83%) 56.25 length=1408,align1=0,align2=0: 57.03 (-1.39%) 68.75 (-22.22%) 56.25 length=1408,align1=44,align2=0: 65.62 (-1.20%) 73.44 (-13.25%) 64.84 length=1408,align1=0,align2=44: 64.84 (0.00%) 74.22 (-14.46%) 64.84 length=1408,align1=44,align2=44: 56.25 (-1.41%) 68.75 (-23.94%) 55.47 length=1440,align1=0,align2=0: 67.97 (-14.47%) 64.84 (-9.21%) 59.38 length=1440,align1=45,align2=0: 74.22 (-10.47%) 68.75 (-2.33%) 67.19 length=1440,align1=0,align2=45: 72.66 (-6.90%) 69.53 (-2.30%) 67.97 length=1440,align1=45,align2=45: 65.62 (-13.51%) 58.59 (-1.35%) 57.81 length=1472,align1=0,align2=0: 66.41 (-14.86%) 58.59 (-1.35%) 57.81 length=1472,align1=46,align2=0: 73.44 (-9.30%) 67.19 (0.00%) 67.19 length=1472,align1=0,align2=46: 70.31 (-4.65%) 67.97 (-1.16%) 67.19 length=1472,align1=46,align2=46: 57.81 (0.00%) 58.59 (-1.35%) 57.81 length=1504,align1=0,align2=0: 60.94 (0.00%) 60.94 (0.00%) 60.94 length=1504,align1=47,align2=0: 71.09 (-1.11%) 70.31 (0.00%) 70.31 length=1504,align1=0,align2=47: 70.31 (-1.12%) 70.31 (-1.12%) 69.53 length=1504,align1=47,align2=47: 60.94 (-1.30%) 60.16 (0.00%) 60.16 length=1536,align1=0,align2=0: 62.50 (-3.90%) 60.16 (0.00%) 60.16 length=1536,align1=48,align2=0: 60.94 (-1.30%) 60.16 (0.00%) 60.16 length=1536,align1=0,align2=48: 61.72 (-3.95%) 60.16 (-1.32%) 59.38 length=1536,align1=48,align2=48: 60.94 (-1.30%) 60.16 (0.00%) 60.16 length=1568,align1=0,align2=0: 80.47 (-27.16%) 63.28 (0.00%) 63.28 length=1568,align1=49,align2=0: 86.72 (-18.09%) 72.66 (1.06%) 73.44 length=1568,align1=0,align2=49: 74.22 (-3.26%) 74.22 (-3.26%) 71.88 length=1568,align1=49,align2=49: 62.50 (0.00%) 61.72 (1.25%) 62.50 length=1600,align1=0,align2=0: 62.50 (-1.27%) 62.50 (-1.27%) 61.72 length=1600,align1=50,align2=0: 73.44 (0.00%) 71.88 (2.13%) 73.44 length=1600,align1=0,align2=50: 72.66 (0.00%) 73.44 (-1.08%) 72.66 length=1600,align1=50,align2=50: 62.50 (-1.27%) 62.50 (-1.27%) 61.72 length=1632,align1=0,align2=0: 64.84 (0.00%) 64.84 (0.00%) 64.84 length=1632,align1=51,align2=0: 75.78 (0.00%) 75.00 (1.03%) 75.78 length=1632,align1=0,align2=51: 78.91 (0.00%) 75.78 (3.96%) 78.91 length=1632,align1=51,align2=51: 64.84 (-2.47%) 64.84 (-2.47%) 63.28 length=1664,align1=0,align2=0: 64.84 (-1.22%) 64.84 (-1.22%) 64.06 length=1664,align1=52,align2=0: 75.78 (0.00%) 75.00 (1.03%) 75.78 length=1664,align1=0,align2=52: 80.47 (-0.98%) 75.78 (4.90%) 79.69 length=1664,align1=52,align2=52: 64.06 (-1.23%) 65.62 (-3.70%) 63.28 length=1696,align1=0,align2=0: 69.53 (-3.49%) 72.66 (-8.14%) 67.19 length=1696,align1=53,align2=0: 80.47 (-0.98%) 82.03 (-2.94%) 79.69 length=1696,align1=0,align2=53: 80.47 (0.96%) 82.03 (-0.96%) 81.25 length=1696,align1=53,align2=53: 68.75 (-2.33%) 72.66 (-8.14%) 67.19 length=1728,align1=0,align2=0: 67.97 (0.00%) 72.66 (-6.90%) 67.97 length=1728,align1=54,align2=0: 80.47 (-0.98%) 82.81 (-3.92%) 79.69 length=1728,align1=0,align2=54: 78.91 (-1.00%) 82.03 (-5.00%) 78.12 length=1728,align1=54,align2=54: 68.75 (0.00%) 72.66 (-5.68%) 68.75 length=1760,align1=0,align2=0: 77.34 (-12.50%) 68.75 (0.00%) 68.75 length=1760,align1=55,align2=0: 91.41 (-8.33%) 79.69 (5.56%) 84.38 length=1760,align1=0,align2=55: 88.28 (-10.78%) 80.47 (-0.98%) 79.69 length=1760,align1=55,align2=55: 77.34 (-11.24%) 68.75 (1.12%) 69.53 length=1792,align1=0,align2=0: 78.12 (-14.94%) 68.75 (-1.15%) 67.97 length=1792,align1=56,align2=0: 88.28 (-4.63%) 79.69 (5.56%) 84.38 length=1792,align1=0,align2=56: 88.28 (-9.71%) 80.47 (0.00%) 80.47 length=1792,align1=56,align2=56: 77.34 (-11.24%) 68.75 (1.12%) 69.53 length=1824,align1=0,align2=0: 72.66 (7.92%) 70.31 (10.89%) 78.91 length=1824,align1=57,align2=0: 85.94 (5.17%) 82.03 (9.48%) 90.62 length=1824,align1=0,align2=57: 82.03 (3.67%) 82.81 (2.75%) 85.16 length=1824,align1=57,align2=57: 70.31 (-1.12%) 70.31 (-1.12%) 69.53 length=1856,align1=0,align2=0: 70.31 (-1.12%) 70.31 (-1.12%) 69.53 length=1856,align1=58,align2=0: 83.59 (-0.94%) 82.03 (0.94%) 82.81 length=1856,align1=0,align2=58: 178.12 (-115.09%) 82.81 (0.00%) 82.81 length=1856,align1=58,align2=58: 70.31 (-1.12%) 70.31 (-1.12%) 69.53 length=1888,align1=0,align2=0: 73.44 (-1.08%) 78.91 (-8.60%) 72.66 length=1888,align1=59,align2=0: 85.94 (0.00%) 89.84 (-4.55%) 85.94 length=1888,align1=0,align2=59: 84.38 (0.00%) 89.06 (-5.56%) 84.38 length=1888,align1=59,align2=59: 72.66 (-1.09%) 78.12 (-8.70%) 71.88 length=1920,align1=0,align2=0: 72.66 (-1.09%) 78.12 (-8.70%) 71.88 length=1920,align1=60,align2=0: 85.94 (0.00%) 89.84 (-4.55%) 85.94 length=1920,align1=0,align2=60: 85.16 (0.00%) 89.06 (-4.59%) 85.16 length=1920,align1=60,align2=60: 72.66 (-1.09%) 78.91 (-9.78%) 71.88 length=1952,align1=0,align2=0: 75.00 (-1.05%) 75.00 (-1.05%) 74.22 length=1952,align1=61,align2=0: 88.28 (0.00%) 87.50 (0.88%) 88.28 length=1952,align1=0,align2=61: 87.50 (0.00%) 88.28 (-0.89%) 87.50 length=1952,align1=61,align2=61: 74.22 (0.00%) 74.22 (0.00%) 74.22 length=1984,align1=0,align2=0: 75.00 (-1.05%) 73.44 (1.05%) 74.22 length=1984,align1=62,align2=0: 89.06 (-0.89%) 87.50 (0.88%) 88.28 length=1984,align1=0,align2=62: 87.50 (0.00%) 88.28 (-0.89%) 87.50 length=1984,align1=62,align2=62: 74.22 (0.00%) 74.22 (0.00%) 74.22 length=2016,align1=0,align2=0: 77.34 (-1.02%) 76.56 (0.00%) 76.56 length=2016,align1=63,align2=0: 91.41 (-0.86%) 90.62 (0.00%) 90.62 length=2016,align1=0,align2=63: 89.84 (0.00%) 90.62 (-0.87%) 89.84 length=2016,align1=63,align2=63: 77.34 (-1.02%) 76.56 (0.00%) 76.56 length=4096,align1=0,align2=0: 141.41 (-0.56%) 146.88 (-4.44%) 140.62 Function: memcpy __memcpy_thunderx __memcpy_falkor __memcpy_generic Variant: large ================================================================================ length=65543,align1=0,align2=0: 4018.75 (3.09%) 2634.38 (36.47%) 4146.88 length=65551,align1=0,align2=3: 4425.00 (-6.47%) 3134.38 (24.59%) 4156.25 length=65567,align1=3,align2=0: 2909.38 (29.95%) 3134.38 (24.53%) 4153.12 length=65599,align1=3,align2=5: 4415.62 (-6.16%) 3134.38 (24.64%) 4159.38 length=131079,align1=0,align2=0: 5765.62 (30.38%) 5240.62 (36.72%) 8281.25 length=131087,align1=0,align2=3: 8831.25 (-6.56%) 6271.88 (24.32%) 8287.50 length=131103,align1=3,align2=0: 5793.75 (29.05%) 6268.75 (23.23%) 8165.62 length=131135,align1=3,align2=5: 5806.25 (29.97%) 6259.38 (24.50%) 8290.62 length=262151,align1=0,align2=0: 11850.00 (28.91%) 10762.50 (35.43%) 16668.80 length=262159,align1=0,align2=3: 12043.80 (27.72%) 12700.00 (23.78%) 16662.50 length=262175,align1=3,align2=0: 12046.90 (27.90%) 12687.50 (24.07%) 16709.40 length=262207,align1=3,align2=5: 11984.40 (28.08%) 12678.10 (23.91%) 16662.50 length=524295,align1=0,align2=0: 24825.00 (25.00%) 24268.80 (27.34%) 33400.00 length=524303,align1=0,align2=3: 35731.20 (-6.53%) 25678.10 (23.44%) 33540.60 length=524319,align1=3,align2=0: 25893.80 (22.71%) 25725.00 (23.22%) 33503.10 length=524351,align1=3,align2=5: 25887.50 (22.86%) 25690.60 (23.45%) 33559.40 length=1048583,align1=0,align2=0: 50621.90 (0.30%) 50600.00 (0.34%) 50771.90 length=1048591,align1=0,align2=3: 53206.20 (0.54%) 51081.20 (4.51%) 53493.80 length=1048607,align1=3,align2=0: 53221.90 (0.32%) 51975.00 (2.66%) 53393.80 length=1048639,align1=3,align2=5: 53240.60 (0.36%) 51953.10 (2.77%) 53431.20 length=2097159,align1=0,align2=0: 103744.00 (-2.00%) 102447.00 (-1.00%) 102425.00 length=2097167,align1=0,align2=3: 108588.00 (-1.00%) 105159.00 (2.00%) 107606.00 length=2097183,align1=3,align2=0: 107678.00 (0.00%) 105250.00 (2.00%) 108125.00 length=2097215,align1=3,align2=5: 107906.00 (1.00%) 105841.00 (3.00%) 109475.00 length=4194311,align1=0,align2=0: 202994.00 (0.00%) 202500.00 (1.00%) 204809.00 length=4194319,align1=0,align2=3: 213350.00 (0.00%) 205997.00 (3.00%) 213384.00 length=4194335,align1=3,align2=0: 212653.00 (0.00%) 206444.00 (3.00%) 212900.00 length=4194367,align1=3,align2=5: 213044.00 (0.00%) 206084.00 (3.00%) 213847.00 length=8388615,align1=0,align2=0: 401294.00 (0.00%) 401231.00 (0.00%) 401944.00 length=8388623,align1=0,align2=3: 480872.00 (-14.00%) 406444.00 (3.00%) 422900.00 length=8388639,align1=3,align2=0: 422147.00 (0.00%) 407750.00 (3.00%) 422803.00 length=8388671,align1=3,align2=5: 442003.00 (-5.00%) 407125.00 (3.00%) 423509.00 length=16777223,align1=0,align2=0: 799809.00 (0.00%) 800000.00 (0.00%) 801756.00 length=16777231,align1=0,align2=3: 841184.00 (0.00%) 808525.00 (4.00%) 843775.00 length=16777247,align1=3,align2=0: 841166.00 (0.00%) 810147.00 (3.00%) 843147.00 length=16777279,align1=3,align2=5: 972569.00 (-16.00%) 808588.00 (4.00%) 843731.00 length=33554439,align1=0,align2=0: 1842240.00 (-0.01%) 1863590.00 (-1.17%) 1841990.00 length=33554447,align1=0,align2=3: 2103470.00 (-2.74%) 1919460.00 (6.25%) 2047440.00 length=33554463,align1=3,align2=0: 2075690.00 (-1.07%) 1930040.00 (6.02%) 2053720.00 length=33554495,align1=3,align2=5: 2110590.00 (-2.82%) 1924440.00 (6.25%) 2052650.00 Function: memcpy __memcpy_thunderx __memcpy_falkor __memcpy_generic Variant: random ================================================================================ max-size=4096: 44061.90 (5.85%) 38568.20 (17.59%) 46799.90 max-size=8192: 42790.90 (5.27%) 38158.90 (15.52%) 45171.50 max-size=16384: 44912.10 (2.25%) 38710.40 (15.75%) 45945.00 max-size=32768: 43577.90 (1.23%) 37975.10 (13.93%) 44120.00 max-size=65536: 44375.50 (1.04%) 38474.20 (14.20%) 44840.60 * manual/tunables.texi (Tunable glibc.tune.cpu): Add falkor. * sysdeps/aarch64/multiarch/Makefile (sysdep_routines): Add memcpy_falkor. * sysdeps/aarch64/multiarch/ifunc-impl-list.c (MAX_IFUNC): Bump. (__libc_ifunc_impl_list): Add __memcpy_falkor. * sysdeps/aarch64/multiarch/memcpy.c: Likewise. * sysdeps/aarch64/multiarch/memcpy_falkor.S: New file. * sysdeps/unix/sysv/linux/aarch64/cpu-features.c (cpu_list): Add falkor. * sysdeps/unix/sysv/linux/aarch64/cpu-features.h (IS_FALKOR): New macro. |
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|
Joseph Myers
|
f17a42333f |
Do not use __ptr_t.
sys/cdefs.h has a macro __ptr_t, which a few places in glibc use instead of void *. void * is a well-understood standard type for that purpose and in a post-C89 context there is no need for a macro for it; this patch changes those places to use void * directly instead. Unlike __long_double_t, __ptr_t is widely used outside glibc (or at least has many hits on codesearch.debian.net). I don't know how many of those uses would break if sys/cdefs.h ceased to define the macro, but there's enough risk that this patch leaves the definition and just removes the uses within glibc; removal of the definition can be considered separately if desired. Tested for x86_64, and with build-many-glibcs.py. * malloc/mcheck.c (old_free_hook): Use void * instead of __ptr_t. (old_malloc_hook): Likewise. (old_memalign_hook): Likewise. (old_realloc_hook): Likewise. (struct hdr): Likewise. (flood): Likewise. (freehook): Likewise. (mallochook): Likewise. (memalignhook): Likewise. (reallochook): Likewise. (mprobe): Likewise. * malloc/mtrace.c (mallwatch): Likewise. (tr_old_free_hook): Likewise. (tr_old_malloc_hook): Likewise. (tr_old_realloc_hook): Likewise. (tr_old_memalign_hook): Likewise. (tr_where): Likewise. (lock_and_info): Likewise. (tr_freehook): Likewise. (tr_mallochook): Likewise. (tr_reallochook): Likewise. (tr_memalignhook): Likewise. * misc/err.h [!__GNUC_VA_LIST] (__gnuc_va_list): Likewise. * misc/mmap.c (__mmap): Likewise. * misc/mmap64.c (__mmap64): Likewise. * misc/mprotect.c (__mprotect): Likewise. * misc/msync.c (msync): Likewise. * misc/munmap.c (__munmap): Likewise. * posix/posix_madvise.c (posix_madvise): Likewise. * socket/send.c (__send): Likewise. * socket/sendto.c (__sendto): Likewise. * socket/setsockopt.c (__setsockopt): Likewise. * string/memcmp.c (__ptr_t): Remove macro. (MEMCMP): Use void * instead of ptr_t. * string/memrchr.c (__ptr_t): Remove macro. (__memrchr): Use void * instead of ptr_t. * sysdeps/mach/hurd/dl-sysdep.c (__mmap): Likewise. * sysdeps/mach/hurd/mmap.c (__mmap): Likewise. * sysdeps/mach/hurd/mmap64.c (__mmap64): Likewise. * sysdeps/mach/mprotect.c (__mprotect): Likewise. * sysdeps/mach/msync.c (msync): Likewise. * sysdeps/mach/munmap.c (__munmap): Likewise. * sysdeps/mips/bits/setjmp.h (struct __jmp_buf_internal_tag): Likewise. * sysdeps/posix/getcwd.c (__getcwd): Likewise. * sysdeps/powerpc/powerpc32/memset.S (memset): Likewise. * sysdeps/powerpc/powerpc32/power4/memcpy.S (memcpy): Likewise. * sysdeps/powerpc/powerpc32/power4/memset.S (memset): Likewise. * sysdeps/powerpc/powerpc32/power6/memcpy.S (memcpy): Likewise. * sysdeps/powerpc/powerpc32/power6/memset.S (memset): Likewise. * sysdeps/powerpc/powerpc32/power7/memcpy.S (memcpy): Likewise. * sysdeps/powerpc/powerpc32/power7/mempcpy.S (__mempcpy): Likewise. * sysdeps/powerpc/powerpc32/power7/memset.S (memset): Likewise. * sysdeps/powerpc/powerpc64/memcpy.S (memcpy): Likewise. * sysdeps/powerpc/powerpc64/memset.S (memset): Likewise. * sysdeps/powerpc/powerpc64/power4/memcpy.S (memcpy): Likewise. * sysdeps/powerpc/powerpc64/power4/memset.S (memset): Likewise. * sysdeps/powerpc/powerpc64/power6/memcpy.S (memcpy): Likewise. * sysdeps/powerpc/powerpc64/power6/memset.S (memset): Likewise. * sysdeps/powerpc/powerpc64/power7/memcpy.S (memcpy): Likewise. * sysdeps/powerpc/powerpc64/power7/mempcpy.S (__mempcpy): Likewise. * sysdeps/powerpc/powerpc64/power7/memset.S (memset): Likewise. * sysdeps/powerpc/powerpc64/power8/memset.S (memset): Likewise. * sysdeps/tile/memcmp.c (__ptr_t): Remove macro. (MEMCMP): Use void * instead of ptr_t. * sysdeps/unix/sysv/linux/alpha/oldglob.c (old_glob_t): Likewise. * sysdeps/unix/sysv/linux/mmap.c (__mmap): Likewise. |
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H.J. Lu
|
086df229ee |
i386: Add <startup.h> [BZ #21913]
On Linux/i386, there are 3 ways to make a system call: 1. call *%gs:SYSINFO_OFFSET. This requires TLS initialization. 2. call *_dl_sysinfo. This requires relocation of _dl_sysinfo. 3. int $0x80. This is slower than #2 and #3, but works everywhere. When an object file is compiled with PIC, #1 is prefered since it is faster than #3 and doesn't require relocation of _dl_sysinfo. For dynamic executables, ld.so initializes TLS. However, for static executables, before TLS is initialized by __libc_setup_tls, #3 should be used for system calls. This patch adds <startup.h> which defines _startup_fatal and defaults it to __libc_fatal. It replaces __libc_fatal with _startup_fatal in static executables where it is called before __libc_setup_tls is called. This header file is included in all files containing functions which are called before __libc_setup_tls is called. On Linux/i386, when PIE is enabled by default, _startup_fatal is turned into ABORT_INSTRUCTION and I386_USE_SYSENTER is defined to 0 so that "int $0x80" is used for system calls before __libc_setup_tls is called. Tested on i686 and x86-64. Without this patch, all statically-linked tests will fail on i686 when the compiler defaults to -fPIE. [BZ #21913] * csu/libc-tls.c: Include <startup.h> first. (__libc_setup_tls): Call _startup_fatal instead of __libc_fatal. * elf/dl-tunables.c: Include <startup.h> first. * include/libc-symbols.h (BUILD_PIE_DEFAULT): New. * sysdeps/generic/startup.h: New file. * sysdeps/unix/sysv/linux/i386/startup.h: Likewise. * sysdeps/unix/sysv/linux/i386/brk.c [BUILD_PIE_DEFAULT != 0] (I386_USE_SYSENTER): New. Defined to 0. |
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Adhemerval Zanella
|
852d631207 |
posix: Set p{read,write}v2 to return ENOTSUP (BZ#21780)
Different than other architectures hppa-linux-gnu define different values
for ENOTSUP and EOPNOTSUPP, where the later is a Linux specific one.
This leads to tst-preadwritev{64}v2 tests failures:
$ ./testrun.sh misc/tst-preadvwritev2
error: tst-preadvwritev2-common.c:35: preadv2 failure did not set errno to ENOTSUP (223)
error: 1 test failures
The straightforward fix is to return the POSIX defined ENOTSUP on all
p{read,write}v{64}v2 implementations instead of Linux specific one.
Checked on x86_64-linux-gnu and the tst-preadwritev{64}v2 on
hppa-linux-gnu (although due the installed kernel on my testing system
the pwritev{64}v2 with an invalid flag still fails due a known kernel
issue [1]).
[BZ #21780]
* sysdeps/posix/preadv2.c (preadv2): Use ENOTSUP instead of
EOPNOTSUPP.
* sysdeps/posix/preadv64v2.c (preadv64v2): Likewise.
* sysdeps/posix/pwritev2.c (pwritev2): Likewise.
* sysdeps/posix/pwritev64v2.c (pwritev64v2): Likewise.
* sysdeps/unix/sysv/linux/preadv2.c (preadv2): Likewise.
* sysdeps/unix/sysv/linux/preadv64v2.c (preadv64v2): Likewise.
* sysdeps/unix/sysv/linux/pwritev2.c (pwritev2): Likewise.
* sysdeps/unix/sysv/linux/pwritev64v2.c (pwritev64v2): Likewise.
[1] https://sourceware.org/ml/libc-alpha/2017-06/msg00726.html
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Joseph Myers
|
cd65836b5f |
Fix XPG4.2 bits/sigaction.h namespace (bug 21899).
For XPG4.2, sa_sigaction, SA_ONSTACK, SA_RESETHAND, SA_RESTART and SA_NODEFER should be defined in signal.h, but they are only defined for other standards at present. This patch fixes the various bits/sigaction.h headers accordingly. All the fixes are essentially the same, except those for SPARC and Tile. For SPARC, the header (a) spuriously defined various nonstandard macros for __USE_UNIX98 || defined __USE_XOPEN2K8 and (b) defined some standard macros as aliases of nonstandard ones instead of the other way round. This patch fixes the SPARC header to handle these macros the same way and with the same conditions as those for other architectures, so the standard macros are the primary ones and the other ones are defined only for __USE_MISC and are aliases of the standard ones where applicable. For Tile, the header spuriously defined the nonstandard macro SA_NOPTRACE for __USE_UNIX98 || defined __USE_XOPEN2K8; this is moved to __USE_MISC. (Those nonstandard macros are in a reserved namespace, but it seems desirable to be consistent between architectures as far as possible, and so not define them in standard modes anywhere.) Tested for x86_64, and with build-many-glibcs.py. [BZ #21899] * bits/sigaction.h (struct sigaction): Define sa_handler and sa_sigaction using union also for [__USE_XOPEN_EXTENDED]. (SA_ONSTACK): Change [__USE_UNIX98] condition to [__USE_XOPEN_EXTENDED]. (SA_RESTART): Likewise. (SA_NODEFER): Likewise. (SA_RESETHAND): Likewise. * sysdeps/unix/sysv/linux/alpha/bits/sigaction.h (struct sigaction): Define sa_handler and sa_sigaction using union also for [__USE_XOPEN_EXTENDED]. (SA_ONSTACK): Change [__USE_UNIX98] condition to [__USE_XOPEN_EXTENDED]. (SA_RESTART): Likewise. (SA_NODEFER): Likewise. (SA_RESETHAND): Likewise. * sysdeps/unix/sysv/linux/bits/sigaction.h (struct sigaction): Define sa_handler and sa_sigaction using union also for [__USE_XOPEN_EXTENDED]. (SA_ONSTACK): Change [__USE_UNIX98] condition to [__USE_XOPEN_EXTENDED]. (SA_RESTART): Likewise. (SA_NODEFER): Likewise. (SA_RESETHAND): Likewise. * sysdeps/unix/sysv/linux/hppa/bits/sigaction.h (struct sigaction): Define sa_handler and sa_sigaction using union also for [__USE_XOPEN_EXTENDED]. (SA_ONSTACK): Change [__USE_UNIX98] condition to [__USE_XOPEN_EXTENDED]. (SA_RESTART): Likewise. (SA_NODEFER): Likewise. (SA_RESETHAND): Likewise. * sysdeps/unix/sysv/linux/ia64/bits/sigaction.h (struct sigaction): Define sa_handler and sa_sigaction using union also for [__USE_XOPEN_EXTENDED]. (SA_ONSTACK): Change [__USE_UNIX98] condition to [__USE_XOPEN_EXTENDED]. (SA_RESTART): Likewise. (SA_NODEFER): Likewise. (SA_RESETHAND): Likewise. * sysdeps/unix/sysv/linux/mips/bits/sigaction.h (struct sigaction): Define sa_handler and sa_sigaction using union also for [__USE_XOPEN_EXTENDED]. (SA_ONSTACK): Change [__USE_UNIX98] condition to [__USE_XOPEN_EXTENDED]. (SA_RESTART): Likewise. (SA_NODEFER): Likewise. (SA_RESETHAND): Likewise. * sysdeps/unix/sysv/linux/s390/bits/sigaction.h (struct sigaction): Define sa_handler and sa_sigaction using union also for [__USE_XOPEN_EXTENDED]. (SA_ONSTACK): Change [__USE_UNIX98] condition to [__USE_XOPEN_EXTENDED]. (SA_RESTART): Likewise. (SA_NODEFER): Likewise. (SA_RESETHAND): Likewise. * sysdeps/unix/sysv/linux/sparc/bits/sigaction.h (struct sigaction): Define sa_handler and sa_sigaction using union also for [__USE_XOPEN_EXTENDED]. (SA_ONSTACK): Change [__USE_UNIX98] condition to [__USE_XOPEN_EXTENDED]. (SA_RESTART): Likewise. (SA_NODEFER): Likewise. Define directly rather than as alias. (SA_RESETHAND): Likewise. (SA_INTERRUPT): Define only for [__USE_MISC]. (SA_NOMASK): Define as alias of SA_NODEFER, only for [__USE_MISC]. (SA_ONESHOT): Define as alias of SA_RESETHAND, only for [__USE_MISC]. (SA_STACK): Define only for [__USE_MISC]. * sysdeps/unix/sysv/linux/tile/bits/sigaction.h (struct sigaction): Define sa_handler and sa_sigaction using union also for [__USE_XOPEN_EXTENDED]. (SA_ONSTACK): Change [__USE_UNIX98] condition to [__USE_XOPEN_EXTENDED]. (SA_RESTART): Likewise. (SA_NODEFER): Likewise. (SA_RESETHAND): Likewise. (SA_NOPTRACE): Define only for [__USE_MISC]. |
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Joseph Myers
|
d9fee042e2 |
Consistently use uintN_t not u_intN_t everywhere.
This patch changes the remaining uses of the old nonstandard u_intN_t types in glibc to use the C99 uintN_t instead, except for the definitions of those typedefs and the tests of them in the c++-types test. This follows the previous such fix for libm, and being consistent in using uintN_t makes sense as a global cleanup. Tested for x86_64, and with build-many-glibcs.py. * catgets/catgets.c (catgets): Use uintN_t instead of u_intN_t. * catgets/catgetsinfo.h (struct catalog_obj): Likewise. (struct catalog_info): Likewise. * inet/htontest.c (lo): Likewise. (foo): Likewise. * inet/inet_lnaof.c (inet_lnaof): Likewise. * inet/inet_net.c (inet_network): Likewise. * inet/inet_netof.c (inet_netof): Likewise. * inet/rcmd.c (__ivaliduser): Likewise. (iruserok): Likewise. * locale/loadlocale.c (_nl_intern_locale_data): Likewise. * locale/programs/locale-spec.c (locale_special): Likewise. * nis/nis_findserv.c (struct findserv_req): Likewise. (__nis_findfastest_with_timeout): Likewise. * nss/test-netdb.c (test_network): Likewise. * resolv/inet_neta.c (inet_neta): Likewise. * resolv/ns_date.c (ns_datetosecs): Likewise. (SECS_PER_DAY): Likewise. * resolv/nss_dns/dns-network.c (_nss_dns_getnetbyaddr_r): Likewise. * resolv/res_comp.c (__putlong): Likewise. (__putshort): Likewise. (_getlong): Likewise. (_getshort): Likewise. * resolv/res_debug.c (p_time): Likewise. (precsize_ntoa): Likewise. (precsize_aton): Likewise. (latlon2ul): Likewise. (loc_aton): Likewise. (loc_ntoa): Likewise. * resolv/res_hconf.c (struct netaddr): Likewise. (_res_hconf_reorder_addrs): Likewise. * sunrpc/clnt_tcp.c (clnttcp_call): Likewise. (clnttcp_control): Likewise. * sunrpc/clnt_udp.c (clntudp_call): Likewise. (clntudp_control): Likewise. * sunrpc/clnt_unix.c (clntunix_call): Likewise. (clntunix_control): Likewise. * sunrpc/pmap_rmt.c (clnt_broadcast): Likewise. * sunrpc/rpc/auth.h (union des_block): Likewise. * sunrpc/tst-udp-nonblocking.c (do_test): Likewise. * sunrpc/xdr_rec.c (struct rec_strm): Likewise. (xdrrec_create): Likewise. (xdrrec_endofrecord): Likewise. (flush_out): Likewise. * sunrpc/xdr_stdio.c (xdrstdio_getlong): Likewise. (xdrstdio_putlong): Likewise. * sysdeps/unix/sysv/linux/errqueue.h (struct sock_extended_err): Likewise. |
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H.J. Lu
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627c69c838 |
i386: Update I386_USE_SYSENTER for early PIC syscall
Define I386_USE_SYSENTER to 0 or 1 so that special versions of syscalls with "int $0x80" can be provided for static PIE during self relocation. Also check PIC instead SHARED for PIC version of syscall macros. * sysdeps/unix/sysv/linux/i386/sysdep.h (I386_USE_SYSENTER): Define to I386_USE_SYSENTER to 0 or 1 if not defined. (ENTER_KERNEL): Check if I386_USE_SYSENTER is 1 and check PIC. (INTERNAL_SYSCALL_MAIN_INLINE): Likewise. (INTERNAL_SYSCALL_NCS): Likewise. (LOADARGS_1): Likewise. (LOADARGS_5): Likewise. (RESTOREARGS_1): Likewise. (RESTOREARGS_5): Likewise. |
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Nathan Rossi
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d95fcb2df4 |
microblaze: Resolve non-relocatable branch in pt-vfork.S (BZ#21779)
The relative branch directly to __libc_vfork results in an relocation that cannot be resolved. Specifically a R_MICROBLAZE_64_PCREL relocation is created for this branch, however for MicroBlaze R_MICROBLAZE_64_PCREL type relocations symbols are not resolved. Additionally due to the branch being located in the .text section the instruction cannot be rewritten as the section is not writable, and causes a segfault at runtime when loading libpthread. To resolve this issue, ensure the branch is done using PLT. This removes the need to modify the instruction and trades the R_MICROBLAZE_64_PCREL for a more common R_MICROBLAZE_JUMP via the PLT. [BZ #21779] * sysdeps/unix/sysv/linux/microblaze/pt-vfork.S: Branch using PLT. |
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Adhemerval Zanella
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95a7339258 |
tunables: Use direct syscall for access (BZ#21744)
The function maybe_enable_malloc_check, which is called by __tunables_init, calls __access_noerrno. It isn't problem when symbol is is in ld.so, which has a special version of __access_noerrno without stack protector. But when glibc is built with stack protector, maybe_enable_malloc_check in libc.a can't call the regular version of __access_noerrno with stack protector. This patch changes how Linux defines the __access_noerrno to be an inline call instead and thus preventing defining different build rules for ld/static and shared. H.J. Lu <hongjiu.lu@intel.com> Adhemerval Zanella <adhemerval.zanella@linaro.org> [BZ #21744] * elf/dl-tunables.c: Include not-errno.h header. * include/unistd.h (__access_noerrno): Remove definition. * sysdeps/unix/sysv/linux/access.c (__access_noerrno): Likewise. * sysdeps/generic/not-errno.h: New file. * sysdeps/unix/sysv/linux/not-errno.h: Likewise. |
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Dmitry V. Levin
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cab91f947a |
S390: fix sys/ptrace.h to make it includible again after asm/ptrace.h
sys/ptrace.h on S390 used to be includible both before and after
asm/ptrace.h, until commit
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Adhemerval Zanella
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d500130f31 |
alpha: Fix clone exit syscall argument passing (BZ#21512)
This patch fixes the argument passing for exit syscall after the clone function returns on hppa. This fixes misc/tst-clone2 on alpha-linux-gnu. Checked misc/tst-clone2 on alpha-linux-gnu. [BZ #21512] * sysdeps/unix/sysv/linux/alpha/clone.S (__clone): Fix argument passing to syscall exit. |
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Szabolcs Nagy
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82e0660050 |
[AArch64] Update dl-procinfo for new HWCAP flags in Linux 4.12
Follow up to commit
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Szabolcs Nagy
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00d7a37773 |
[AArch64] Fix out of bound array access regression
Partially revert
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Tulio Magno Quites Machado Filho
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91ac3a7d84 |
powerpc: Fix float128 IFUNC relocations [BZ #21707]
The patch proposed by Peter Bergner [1] to libgcc in order to fix [BZ #21707] adds a dependency on a symbol provided by the loader, forcing the loader to be linked to tests after libgcc was linked. It also requires to read the thread pointer during IRELA relocations. Tested on powerpc, powerpc64, powerpc64le, s390x and x86_64. [1] https://sourceware.org/ml/libc-alpha/2017-06/msg01383.html [BZ #21707] * csu/libc-start.c (LIBC_START_MAIN): Perform IREL{,A} relocations before or after initializing the TCB on statically linked executables. That's a per-architecture definition. * elf/rtld.c (dl_main): Add a comment about thread-local variables initialization. * sysdeps/generic/libc-start.h: New file. Define ARCH_APPLY_IREL and ARCH_SETUP_IREL. * sysdeps/powerpc/Makefile: [$(subdir) = elf && $(multi-arch) != no] (tests-static-internal): Add tst-tlsifunc-static. [$(subdir) = elf && $(multi-arch) != no && $(build-shared) == yes] (tests-internal): Add tst-tlsifunc. * sysdeps/powerpc/tst-tlsifunc.c: New file. * sysdeps/powerpc/tst-tlsifunc-static.c: Likewise. * sysdeps/powerpc/powerpc64le/Makefile (f128-loader-link): New variable. [$(subdir) = math] (test-float128% test-ifloat128%): Force linking to the loader after linking to libgcc. [$(subdir) = wcsmbs || $(subdir) = stdlib] (bug-strtod bug-strtod2) (bug-strtod2 tst-strtod-round tst-wcstod-round tst-strtod6 tst-strrom) (tst-strfrom-locale strfrom-skeleton): Likewise. * sysdeps/unix/sysv/linux/powerpc/libc-start.h: New file. Define ARCH_APPLY_IREL and ARCH_SETUP_IREL. |
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Adhemerval Zanella
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48145e1c7d |
hppa: Fix clone exit syscall argument passing (BZ#21512)
This patch fixes the argument passing for exit syscall after the clone function returns on hppa. This fixes misc/tst-clone2 on hppa-linux-gnu. Checked misc/tst-clone2 on hppa-linux-gnu. [BZ #21512] * sysdeps/unix/sysv/linux/hppa/clone.S (__clone): Fix argument passing to syscall exit. |
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Szabolcs Nagy
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512d245bc3 |
Add HWCAP_ macros from Linux 4.12 to AArch64 bits/hwcap.h.
This patch adds the HWCAP_JSCVT, HWCAP_FCMA and HWCAP_LRCPC macros from Linux 4.12 to the AArch64 bits/hwcap.h. * sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h (HWCAP_FCMA): New macro. (HWCAP_JSCVT, HWCAP_LRCPC): Likewise. |
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John David Anglin
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ce1917d0bf | Add CFI annotation. | |
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John David Anglin
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cc407f4e81 | Fix stack offset for r19 load in __getcontext. | |
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John David Anglin
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07f94b7a96 | Fix __setcontext return value on hppa. | |
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John David Anglin
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d71400dca6 | Fix syscall cancellation on hppa. | |
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John David Anglin
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a363f70336 | Remove _exit entry from sysdeps/unix/sysv/linux/hppa/localplt.data. | |
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John David Anglin
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32d9b0e7a6 | Fix [BZ locale/19838]. | |
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Adhemerval Zanella
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94070f86c0 |
posix: Add p{read,write}v2 RWF_NOWAIT flag (BZ#21738)
Linux 4.12 (b745fafaf70c0a98a2e1e7ac8cb14542889ceb0e) adds a new
p{read,write}v2 flag RWF_NOWAIT. This patch adds it for linux
uio-ext.h header.
Checked on x86_64-linux-gnu (on a 4.10 kernel).
[BZ #21738]
* manual/llio.texi (RWF_NOWAIT): New item.
* misc/tst-preadvwritev2-common.c (do_test_with_invalid_flags):
Add RWF_NOWAIT check.
* sysdeps/unix/sysv/linux/bits/uio-ext.h (RWF_NOWAIT): New flag.
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Stefan Liebler
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2c80445787 |
S390: Fix tst-ptrace-singleblock if kernel does not support PTRACE_SINGLEBLOCK.
The request PTRACE_SINGLEBLOCK was introduced in Linux 3.15. Thus the ptrace call will fail on older kernels. Thus the test is now testing PTRACE_SINGLEBLOCK with data argument pointing to a buffer on stack which is assumed to fail. If the request would be interpreted as PTRACE_GETREGS, then the ptrace call will not fail and the regs are written to buf. If we run with a kernel with support for PTRACE_SINGLEBLOCK a ptrace call with data=NULL, returns zero with no error. If we run with a kernel without support for PTRACE_SINGLEBLOCK a ptrace call with data=NULL reports an error. In the latter case, the test is just continuing with PTRACE_CONT. ChangeLog: * sysdeps/unix/sysv/linux/s390/tst-ptrace-singleblock.c: Support running on kernels without PTRACE_SINGLEBLOCK. |
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John David Anglin
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c5f70682a5 | Use generic pthread support on hppa. | |
Florian Weimer
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1ff6c67a25 | sysconf: Use conservative default for _SC_NPROCESSORS_ONLN [BZ #21542] | |
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Siddhesh Poyarekar
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47ea614b9a | Fix typo in glibc.tune.cpu name | |
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Adhemerval Zanella
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9b8f8593e5 |
Consolidate Linux fcntl implementation
This patch consolidates the fcntl Linux syscall generation on sysdeps/unix/sysv/linux/fcntl.c. It basically removes all the architecture specific implementations. Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32, aarch64-linux-gnu, arm-linux-gnueabihf, and powerpc64le-linux-gnu. * sysdeps/unix/sysv/linux/arm/fcntl.c: Remove file. * sysdeps/unix/sysv/linux/generic/wordsize-32/fcntl.c: Likewise. * sysdeps/unix/sysv/linux/hppa/fcntl.c: Likewise. * sysdeps/unix/sysv/linux/i386/fcntl.c: Likewise. * sysdeps/unix/sysv/linux/m68k/fcntl.c: Likewise. * sysdeps/unix/sysv/linux/microblaze/fcntl.c: Likewise. * sysdeps/unix/sysv/linux/mips/mips32/fcntl.c: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/n32/fcntl.c: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/fcntl.c: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/fcntl.c: Likewise. * sysdeps/unix/sysv/linux/sh/fcntl.c: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/fcntl.c: Likewise. * sysdeps/unix/sysv/linux/fcntl.c: New file. * sysdeps/unix/sysv/linux/powerpc/powerpc64/fcntl.c: Refactor to use default implementation. |
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Siddhesh Poyarekar
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28cfa3a48e |
tunables, aarch64: New tunable to override cpu
Add a new tunable (glibc.tune.cpu) to override CPU identification on aarch64. This is useful in two cases: one where it is desirable to pretend to be another CPU for purposes of testing or because routines written for that CPU are beneficial for specific workloads and second where the underlying kernel does not support emulation of MRS to get the MIDR of the CPU. * elf/dl-tunables.h (tunable_is_name): Move from... * elf/dl-tunables.c (is_name): ... here. (parse_tunables, __tunables_init): Adjust. * manual/tunables.texi: Document glibc.tune.cpu. * sysdeps/aarch64/dl-tunables.list: New file. * sysdeps/unix/sysv/linux/aarch64/cpu-features.c (struct cpu_list): New type. (cpu_list): New list of CPU names and their MIDR. (get_midr_from_mcpu): New function. (init_cpu_features): Override MIDR if necessary. |
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Joseph Myers
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e78dc67889 |
SPARC sys/ucontext.h namespace fixes (bug 21457).
This patch fixes various miscellaneous namespace issues in the SPARC sys/ucontext.h header. These are similar to changes made previous to other sys/ucontext.h headers, where the SPARC header was excluded from those previous patches because of its complexity. Tested for SPARC with build-many-glibcs.py. [BZ #21457] * sysdeps/unix/sysv/linux/sparc/sys/ucontext.h (__ctx): New macro. [__WORDSIZE == 64] (MC_TSTATE): Define only for [__USE_MISC]. [__WORDSIZE == 64] (MC_PC): Likewise. [__WORDSIZE == 64] (MC_NPC): Likewise. [__WORDSIZE == 64] (MC_Y): Likewise. [__WORDSIZE == 64] (MC_G1): Likewise. [__WORDSIZE == 64] (MC_G2): Likewise. [__WORDSIZE == 64] (MC_G3): Likewise. [__WORDSIZE == 64] (MC_G4): Likewise. [__WORDSIZE == 64] (MC_G5): Likewise. [__WORDSIZE == 64] (MC_G6): Likewise. [__WORDSIZE == 64] (MC_G7): Likewise. [__WORDSIZE == 64] (MC_O0): Likewise. [__WORDSIZE == 64] (MC_O1): Likewise. [__WORDSIZE == 64] (MC_O2): Likewise. [__WORDSIZE == 64] (MC_O3): Likewise. [__WORDSIZE == 64] (MC_O4): Likewise. [__WORDSIZE == 64] (MC_O5): Likewise. [__WORDSIZE == 64] (MC_O6): Likewise. [__WORDSIZE == 64] (MC_O7): Likewise. [__WORDSIZE == 64] (MC_NGREG): Rename to __MC_NGREG and define to __MC_NGREG if [__USE_MISC]. [__WORDSIZE == 64] (MC_MAXFPQ): Define only for [__USE_MISC]. [__WORDSIZE == 64] (mc_gregset_t): Define using __MC_NGREG. [__WORDSIZE == 64] (struct mc_fq): Rename to struct __mc_fq. Define fields using __ctx. [__WORDSIZE == 64] (mc_fpu_t): Remove struct tag. Define fields using __ctx. [__WORDSIZE == 64] (mcontext_t): Define fields using __ctx. (REG_PSR): Define only for [__USE_MISC]. (REG_PC): Likewise. (REG_nPC): Likewise. (REG_Y): Likewise. (REG_G1): Likewise. (REG_G2): Likewise. (REG_G3): Likewise. (REG_G4): Likewise. (REG_G5): Likewise. (REG_G6): Likewise. (REG_G7): Likewise. (REG_O0): Likewise. (REG_O1): Likewise. (REG_O2): Likewise. (REG_O3): Likewise. (REG_O4): Likewise. (REG_O5): Likewise. (REG_O6): Likewise. (REG_O7): Likewise. [__WORDSIZE == 64] (REG_ASI): Define only for [__USE_MISC]. [__WORDSIZE == 64] (REG_FPRS): Likewise. (NGREG): Rename to __NGREG and define to __NGREG if [__USE_MISC]. (gregset_t): Define using __NGREG. (SPARC_MAXREGWINDOW): Rename to __SPARC_MAXREGWINDOW and define to __SPARC_MAXREGWINDOW if [__USE_MISC]. (struct rwindow): Rename to struct __rwindow. Define fields using __ctx. (rw_fp): Define only for [__USE_MISC]. (rw_rtn): Likewise. (gwindows_t): Remove struct tag. Define fields using __ctx and __SPARC_MAXREGWINDOW. (MAXFPQ): Define only for [__USE_MISC]. (struct fpq): Rename to struct __fpq. Define fields using __ctx. (struct fq): Rename to struct __fq. Define fields using __ctx. (FPU_REGS_TYPE): Define only for [__USE_MISC]. (FPU_DREGS_TYPE): Likewise. (V7_FPU_FSR_TYPE): Likewise. (V9_FPU_FSR_TYPE): Likewise. (V9_FPU_FPRS_TYPE): Likewise. [__WORDSIZE == 64] (fpregset_t): Remove struct tag. Define fields using __ctx. [__WORDSIZE != 64] (fpregset_t): Likewise. [__WORDSIZE != 64] (xrs_t): Define fields using __ctx. [__WORDSIZE != 64] (XRS_ID): Define only for [__USE_MISC]. [__WORDSIZE != 64] (mcontext_t): Define fields using __ctx. Rename field filler to __glibc_reserved1. * sysdeps/unix/sysv/linux/sparc/sparc32/ucontext_i.sym (MC_FILLER): Remove. |
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Joseph Myers
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d57cb31910 |
Miscellaneous sys/ucontext.h namespace fixes (bug 21457).
This patch fixes various miscellaneous namespace issues in sys/ucontext.h headers. Some struct tags are removed where the structs also have *_t typedef names, while other struct tags without such names are renamed to start __; the changes are noted in NEWS as they can affect C++ name mangling (although there seems to be little if any external use of these types, at least based on checking codesearch.debian.net). For powerpc, pointers to struct pt_regs (not defined in this header) are changed to point to struct __ctx(pt_regs), so in the __USE_MISC case those struct fields continue to point to the existing struct pt_regs type for maximum compatibility, while when that's a namespace issue they point to a struct __pt_regs type which is always an incomplete struct. Tested for affected architectures with build-many-glibcs.py. [BZ #21457] * sysdeps/unix/sysv/linux/m68k/sys/ucontext.h (fpregset_t): Remove struct tag. * sysdeps/unix/sysv/linux/mips/sys/ucontext.h (fpregset_t): Likewise. * sysdeps/unix/sysv/linux/nios2/sys/ucontext.h (mcontext_t): Likewise. * sysdeps/unix/sysv/linux/powerpc/sys/ucontext.h (pt_regs): Declare struct type with __ctx. [__WORDSIZE != 32] (mcontext_t): Use __ctx with pt_regs struct tag. (ucontext_t) [__WORDSIZE == 32]: Use __ctx with pt_regs struct tag and regs field name. |
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Stefan Liebler
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f21f59124d |
S390: Add new hwcap values for new cpu architecture - arch12.
The new hwcap values indicate support for: - Vector packed decimal facility - Vector enhancements facility 1 - Guarded storage facility Note: arch12 is NOT the official name of the new CPU. It refers to the edition number of the Principle of Operations manual. ChangeLog: * sysdeps/s390/dl-procinfo.c (_dl_s390_cap_flags): Add vxd, vxe, gs flag. * sysdeps/s390/dl-procinfo.h: Add HWCAP_S390_VXD, HWCAP_S390_VXE, HWCAP_S390_GS capability. * sysdeps/unix/sysv/linux/s390/bits/hwcap.h (HWCAP_S390_VXD, HWCAP_S390_VXE, HWCAP_S390_GS): Define. |
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Joseph Myers
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034e738021 |
Add float128 support for ia64.
This patch enables float128 support for ia64, so that all the configurations where GCC supports _Float128 / __float128 as an ABI-distinct type now have glibc support as well. bits/floatn.h declares the support to be available for GCC 4.4 and later, which is when the libgcc support was added. The removal of sysdeps/ia64/fpu/k_rem_pio2.c is because the generic k_rem_pio2.c defines a function required by the float128 code. Tested (compilation only) with build-many-glibcs.py for ia64 (GCC 6 and GCC 7). Given how long it is since libm-test-ulps has been updated for ia64, I think truncating the file and regenerating it from scratch would be a good idea when doing a regeneration to add float128 ulps. I expect various ia64 libm issues (at least some already filed in Bugzilla) to result in test failures even after ulps regeneration, but hopefully the float128 code will pass tests as it's the same as used on other architectures. * sysdeps/ia64/Implies: Add ieee754/float128. * sysdeps/ia64/bits/floatn.h: New file. * sysdeps/ia64/float128-abi.h: Likewise. * manual/math.texi (Mathematics): Document support for _Float128 on ia64. * sysdeps/ia64/Makefile [$(subdir) = math] (CPPFLAGS): Append to Makefile variable. * sysdeps/ia64/fpu/e_sqrtf128.c: New file. * sysdeps/ia64/fpu/k_rem_pio2.c: Remove file. * sysdeps/ia64/fpu/sfp-machine.h: New file. Based on libgcc. * sysdeps/ia64/math-tests.h: New file. * math/libm-test-support.h (XFAIL_FLOAT128_PAYLOAD): Also define based on TEST_COND_binary128 for [__ia64__]. * sysdeps/unix/sysv/linux/ia64/libc.abilist: Update. * sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise, |
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Joseph Myers
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251287734e |
Rename struct ucontext tag (bug 21457).
The ucontext_t type has a tag struct ucontext. As with previous such issues for siginfo_t and stack_t, this tag is not permitted by POSIX (is not in a reserved namespace), and so namespace conformance means breaking C++ name mangling for this type. In this case, the type does need to have some tag rather than just a typedef name, because it includes a pointer to itself. This patch uses struct ucontext_t as the new tag, so the type is mangled as ucontext_t (the POSIX *_t reservation applies in all namespaces, not just the namespace of ordinary identifiers). Another reserved name such as struct __ucontext could of course be used. Because of other namespace issues, this patch does not by itself fix bug 21457 or allow any XFAILs to be removed. Tested for x86_64, and with build-many-glibcs.py. [BZ #21457] * sysdeps/arm/sys/ucontext.h (struct ucontext): Rename to struct ucontext_t. * sysdeps/generic/sys/ucontext.h (struct ucontext): Likewise. * sysdeps/i386/sys/ucontext.h (struct ucontext): Likewise. * sysdeps/m68k/sys/ucontext.h (struct ucontext): Likewise. * sysdeps/mips/sys/ucontext.h (struct ucontext): Likewise. * sysdeps/unix/sysv/linux/aarch64/sys/ucontext.h (struct ucontext): Likewise. * sysdeps/unix/sysv/linux/alpha/sys/ucontext.h (struct ucontext): Likewise. * sysdeps/unix/sysv/linux/arm/sys/ucontext.h (struct ucontext): Likewise. * sysdeps/unix/sysv/linux/hppa/sys/ucontext.h (struct ucontext): Likewise. * sysdeps/unix/sysv/linux/ia64/sys/ucontext.h (struct ucontext): Likewise. * sysdeps/unix/sysv/linux/m68k/sys/ucontext.h (struct ucontext): Likewise. * sysdeps/unix/sysv/linux/mips/sys/ucontext.h (struct ucontext): Likewise. * sysdeps/unix/sysv/linux/nios2/sys/ucontext.h (struct ucontext): Likewise. * sysdeps/unix/sysv/linux/powerpc/sys/ucontext.h (struct ucontext): Likewise. * sysdeps/unix/sysv/linux/s390/sys/ucontext.h (struct ucontext): Likewise. * sysdeps/unix/sysv/linux/sh/sys/ucontext.h (struct ucontext): Likewise. * sysdeps/unix/sysv/linux/sparc/sys/ucontext.h (struct ucontext): Likewise. * sysdeps/unix/sysv/linux/tile/sys/ucontext.h (struct ucontext): Likewise. * sysdeps/unix/sysv/linux/x86/sys/ucontext.h (struct ucontext): Likewise. * sysdeps/powerpc/powerpc32/backtrace.c (struct rt_signal_frame_32): Likewise. * sysdeps/powerpc/powerpc64/backtrace.c (struct signal_frame_64): Likewise. * sysdeps/unix/sysv/linux/aarch64/kernel_rt_sigframe.h (struct kernel_rt_sigframe): Likewise. * sysdeps/unix/sysv/linux/aarch64/sigcontextinfo.h (SIGCONTEXT): Likewise. * sysdeps/unix/sysv/linux/arm/register-dump.h (register_dump): Likewise. * sysdeps/unix/sysv/linux/arm/sigcontextinfo.h (SIGCONTEXT): Likewise. * sysdeps/unix/sysv/linux/hppa/profil-counter.h (__profil_counter): Likewise. * sysdeps/unix/sysv/linux/microblaze/sigcontextinfo.h (SIGCONTEXT): Likewise. * sysdeps/unix/sysv/linux/mips/kernel_rt_sigframe.h (struct kernel_rt_sigframe): Likewise. * sysdeps/unix/sysv/linux/nios2/kernel_rt_sigframe.h (struct kernel_rt_sigframe): Likewise. * sysdeps/unix/sysv/linux/nios2/sigcontextinfo.h (SIGCONTEXT): Likewise. * sysdeps/unix/sysv/linux/sh/makecontext.S (__makecontext): Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/makecontext.c (__start_context): Likewise. * sysdeps/unix/sysv/linux/tile/sigcontextinfo.h (SIGCONTEXT): Likewise. * sysdeps/unix/sysv/linux/x86_64/register-dump.h (register_dump): Likewise. * sysdeps/unix/sysv/linux/x86_64/sigcontextinfo.h (SIGCONTEXT): Likewise. |
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Joseph Myers
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c86ed71d63 |
Add float128 support for x86_64, x86.
This patch enables float128 support for x86_64 and x86. All GCC versions that can build glibc provide the required support, but since GCC 6 and before don't provide __builtin_nanq / __builtin_nansq, sNaN tests and some tests of NaN payloads need to be disabled with such compilers (this does not affect the generated glibc binaries at all, just the tests). bits/floatn.h declares float128 support to be available for GCC versions that provide the required libgcc support (4.3 for x86_64, 4.4 for i386 GNU/Linux, 4.5 for i386 GNU/Hurd); compilation-only support was present some time before then, but not really useful without the libgcc functions. fenv_private.h needed updating to avoid trying to put _Float128 values in registers. I make no assertion of optimality of the math_opt_barrier / math_force_eval definitions for this case; they are simply intended to be sufficient to work correctly. Tested for x86_64 and x86, with GCC 7 and GCC 6. (Testing for x32 was compilation tests only with build-many-glibcs.py to verify the ABI baseline updates. I have not done any testing for Hurd, although the float128 support is enabled there as for GNU/Linux.) * sysdeps/i386/Implies: Add ieee754/float128. * sysdeps/x86_64/Implies: Likewise. * sysdeps/x86/bits/floatn.h: New file. * sysdeps/x86/float128-abi.h: Likewise. * manual/math.texi (Mathematics): Document support for _Float128 on x86_64 and x86. * sysdeps/i386/fpu/fenv_private.h: Include <bits/floatn.h>. (math_opt_barrier): Do not put _Float128 values in floating-point registers. (math_force_eval): Likewise. [__x86_64__] (SET_RESTORE_ROUNDF128): New macro. * sysdeps/x86/fpu/Makefile [$(subdir) = math] (CPPFLAGS): Append to Makefile variable. * sysdeps/x86/fpu/e_sqrtf128.c: New file. * sysdeps/x86/fpu/sfp-machine.h: Likewise. Based on libgcc. * sysdeps/x86/math-tests.h: New file. * math/libm-test-support.h (XFAIL_FLOAT128_PAYLOAD): New macro. * math/libm-test-getpayload.inc (getpayload_test_data): Use XFAIL_FLOAT128_PAYLOAD. * math/libm-test-setpayload.inc (setpayload_test_data): Likewise. * math/libm-test-totalorder.inc (totalorder_test_data): Likewise. * math/libm-test-totalordermag.inc (totalordermag_test_data): Likewise. * sysdeps/unix/sysv/linux/i386/libc.abilist: Update. * sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise. * sysdeps/i386/fpu/libm-test-ulps: Likewise. * sysdeps/i386/i686/fpu/multiarch/libm-test-ulps: Likewise. * sysdeps/x86_64/fpu/libm-test-ulps: Likewise. |
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Adhemerval Zanella
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3f823e87cc |
Call exit directly in clone (BZ #21512)
On aarch64, alpha, arm, hppa, mips, nios2, powerpc, sh, sparc, tile, and x86_64 the clone syscall jumps to _exit after the child execution and the function ends the process execution by calling exit_group. This behavior have a small issue where threads created with CLONE_THREAD using clone syscall directly will eventually exit the whole group altogether instead of just the thread created. Also, s390, microblaze, ia64, i386, and m68k differs by calling exit syscall directly. This patch changes all architectures to call the exit syscall directly, as for s390, microblaze, ia64, i386, and m68k. This do not have change glibc internal behavior in any sort, since the only usage of clone implementation in posix_spawn calls _exit directly in the created child (fork uses a direct call to clone). Checked on x86_64-linux-gnu, i686-linux-gnu, aarch64-linux-gnu, powerpc-linux-gnu, powerpc64le-linux-gnu, sparc64-linux-gnu, and sparcv9-linux-gnu. [BZ #21512] * sysdeps/unix/sysv/linux/aarch64/clone.S (__clone): Call exit syscall instead of jump to _exit. (CLONE_VM_BIT): Remove unused define. (CLONE_VM): Likewise. (CLONE_THREAD_BIT): Likewise. (CLONE_THREAD): Likewise. * sysdeps/unix/sysv/linux/alpha/clone.S (__clone): Likewise. (CLONE_VM): Remove unused define. * sysdeps/unix/sysv/linux/arm/clone.S (__clone): Likewise. (CLONE_VM): Remove unused define. (CLONE_THREAD): Likewise. * sysdeps/unix/sysv/linux/i386/clone.S (CLONE_VM): Likewise. * sysdeps/unix/sysv/linux/ia64/clone2.S (__clone2): Call exit syscall instead of jump to _exit. * sysdeps/unix/sysv/linux/hppa/clone.S (__clone): Likewise. * sysdeps/unix/sysv/linux/mips/clone.S (__clone): Likewise. (CLONE_VM): Remove unused define. (CLONE_THREAD): Likewise. * sysdeps/unix/sysv/linux/nios2/clone.S (__clone): Likewise. (CLONE_VM): Remove unused define. * sysdeps/unix/sysv/linux/powerpc/powerpc32/clone.S (__clone): Likewise. (CLONE_VM): Remove unused define. (CLONE_THREAD): Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/clone.S (__clone): Likewise. (CLONE_VM): Remove unused define. (CLONE_THREAD): Likewise. * sysdeps/unix/sysv/linux/sh/clone.S (__clone): Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/clone.S (__clone): Likewise. (CLONE_VM): Remove unused define. * sysdeps/unix/sysv/linux/sparc/sparc64/clone.S (__clone): Likewise. (CLONE_VM): Remove unused define. * sysdeps/unix/sysv/linux/tile/clone.S (__clone): Likewise. * sysdeps/unix/sysv/linux/x86_64/clone.S (__clone): Likewise. (CLONE_VM): Remove unused define. * sysdeps/unix/sysv/linux/Makefile (tests): Add tst-clone3. * sysdeps/unix/sysv/linux/tst-clone3.c: New file. Fix |
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Paul E. Murphy
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f819dbea0a |
powerpc64le: Enable float128
This patch adds ULPs for the float128 type, updates the abilist for libc and libm, and adds the files bits/floatn.h and float128-abi.h, in order to enable the new type for powerpc64le. This patch also adds the implementation of sqrtf128 for powerpc64le, since it is not implemented in libgcc. The sfp-machine.h header is taken from libgcc. Tested for powerpc64le (GCC 6.2 and GCC 7.1), powerpc64 and s390x. * manual/math.texi (Mathematics): Mention the enabling of float128 for powerpc64le. * sysdeps/powerpc/bits/floatn.h: New file. * sysdeps/powerpc/fpu/libm-test-ulps: Regenerated. * sysdeps/powerpc/fpu/math_private.h: (__ieee754_sqrtf128): New inline override. * sysdeps/powerpc/powerpc64le/Implies-before: New file. * sysdeps/powerpc/powerpc64le/Makefile: New file. * sysdeps/powerpc/powerpc64le/fpu/e_sqrtf128.c: New file. * sysdeps/powerpc/powerpc64le/fpu/sfp-machine.h: New file. * sysdeps/powerpc/powerpc64le/power9/fpu/e_sqrtf128.c: New file. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libc-le.abilist: Updated. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64le/float128-abi.h: New file. |
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Adhemerval Zanella
|
fa872e1b62 |
Clean pthread functions namespaces for C11 threads
This patch adds internal definition (through {libc_}hidden_{proto,def}) and
also change some strong to weak alias for symbols that might be used by C11
threads implementations.
The patchset should not change libc/libpthread functional, although object
changes are expected (since now internal symbols are used instead) and final
exported symbols through GLIBC_PRIVATE is also expanded (to cover libpthread
usage of __mmap{64}, __munmap, __mprotect).
Checked with a build for all major ABI (aarch64-linux-gnu, alpha-linux-gnu,
arm-linux-gnueabi, i386-linux-gnu, ia64-linux-gnu, m68k-linux-gnu,
microblaze-linux-gnu [1], mips{64}-linux-gnu, nios2-linux-gnu,
powerpc{64le}-linux-gnu, s390{x}-linux-gnu, sparc{64}-linux-gnu,
tile{pro,gx}-linux-gnu, and x86_64-linux-gnu).
* include/sched.h (__sched_get_priority_max): Add libc hidden proto.
(__sched_get_prioriry_min): Likewise.
* include/sys/mman.h (__mmap): Likewise.
(__mmap64): Likewise.
(__munmap): Likewise.
(__mprotect): Likewise.
* include/termios.h (__tcsetattr): Likewise.
* include/time.h (__nanosleep): Use hidden_proto instead of
libc_hidden_proto.
* posix/nanosleep.c (__nanosleep): Likewise.
* misc/Versions (libc): Export __mmap, __munmap, __mprotect,
__sched_get_priority_min, and __sched_get_priority_max under
GLIBC_PRIVATE.
* nptl/allocatestack.c (__free_stacks): Use internal definition for
libc symbols.
(change_stack_perm): Likewise.
(allocate_stack): Likewise.
* sysdeps/posix/gethostname.c: Likewise.
* nptl/tpp.c (__init_sched_fifo_prio): Likewise.
* sysdeps/unix/sysv/linux/i386/smp.h (is_smp_system): Likewise.
* sysdeps/unix/sysv/linux/powerpc/ioctl.c (__ioctl): Likewise.
* nptl/pthreadP.h (__pthread_mutex_timedlock): Add definition.
(__pthread_key_delete): Likewise.
(__pthread_detach): Likewise.
(__pthread_cancel): Likewise.
(__pthread_mutex_trylock): Likewise.
(__pthread_mutexattr_init): Likewise.
(__pthread_mutexattr_settype): Likewise.
* nptl/pthread_cancel.c (pthread_cancel): Change to internal name and
create alias for exported one.
* nptl/pthread_join.c (pthread_join): Likewise.
* nptl/pthread_detach.c (pthread_detach): Likewise.
* nptl/pthread_key_delete.c (pthread_key_delete): Likewise.
* nptl/pthread_mutex_timedlock.c (pthread_mutex_timedlock): Likewise.
* nptl/pthread_create.c: Change static requirements for pthread
symbols.
* nptl/pthread_equal.c (__pthread_equal): Change strong alias to weak
for internal definition.
* nptl/pthread_exit.c (__pthread_exit): Likewise.
* nptl/pthread_getspecific.c (__pthread_getspecific): Likewise.
* nptl/pthread_key_create.c (__pthread_key_create): Likewise.
* nptl/pthread_mutex_destroy.c (__pthread_mutex_destroy): Likewise.
* nptl/pthread_mutex_init.c (__pthread_mutex_init): Likewise.
* nptl/pthread_mutex_lock.c (__pthread_mutex_lock): Likewise.
* nptl/pthread_mutex_trylock.c (__pthread_mutex_trylock): Likewise.
* nptl/pthread_mutex_unlock.c (__pthread_mutex_unlock): Likewise.
* nptl/pthread_mutexattr_init.c (__pthread_mutexattr_init): Likwise.
* nptl/pthread_mutexattr_settype.c (__pthread_mutexattr_settype):
Likewise.
* nptl/pthread_self.c (__pthread_self): Likewise.
* nptl/pthread_setspecific.c (__pthread_setspecific): Likewise.
* sysdeps/unix/sysv/linux/tcsetattr.c (tcsetattr): Likewise.
* misc/mmap.c (__mmap): Add internal symbol definition.
* misc/mmap.c (__mmap64): Likewise.
* sysdeps/unix/sysv/linux/mmap.c (__mmap): Likewise.
* sysdeps/unix/sysv/linux/mmap64.c (__mmap): Likewise.
(__mmap64): Likewise.
* sysdeps/unix/sysv/linux/i386/Versions (libc) [GLIBC_PRIVATE):
Add __uname.
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Paul Clarke
|
1301c20f6c |
powerpc: fix sysconf support for cache geometries
Commit
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Joseph Myers
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9649350d2e |
Fix tile SA_* conditions for POSIX.1:2008 (bug 21622).
As shown by conform/ tests once the remaining namespace issues are fixed, the tile bits/sigaction.h fails to declare SA_RESETHAND, SA_RESTART and SA_NODEFER for non-XSI POSIX.1:2008 as other versions do. Those constants were moved from XSI to Base in the 2008 edition of POSIX. This patch fixes the conditions to match other versions of this header. Tested (compilation only) for tilegx-linux-gnu with build-many-glibcs.py. [BZ #21622] * sysdeps/unix/sysv/linux/tile/bits/sigaction.h (SA_RESTART): Define for [__USE_UNIX98 || __USE_XOPEN2K8], not [__USE_UNIX98 || __USE_MISC]. (SA_NODEFER): Likewise. (SA_RESETHAND): Likewise. |
|
Zack Weinberg
|
8082d91e1c |
Factor out shared definitions from bits/signum.h.
Many of the things defined by bits/signum.h are invariant across all supported operating systems. This patch factors out all of them to a new header bits/signum-generic.h, which each bits/signum.h will include and then override whichever things need adjustment. Normally that will mean, at most, adding or changing a few signal numbers. A user-visible side effect is that the obsolete signal constant SIGUNUSED (which is an alias for SIGSYS on all platforms that define it) is no longer exposed by any version of bits/signum.h. A side effect only relevant to glibc hackers is that _NSIG is now defined in terms of __SIGRTMAX, instead of the other way around. This is because __SIGRTMAX varies from platform to platform, but _NSIG==__SIGRTMAX+1 is true universally. If your platform doesn't support realtime signals, leave __SIGRTMAX equal to __SIGRTMIN. I also added a Linux-specific test to make sure that our signal constants match the ones in <asm/signal.h>, since we can't use that header (it's not even vaguely namespace-clean). * bits/signum-generic.h: Renamed from bits/signum.h. Add proper multiple include guard and misuse check. Define __SIGRTMIN = __SIGRTMAX = 32, and define _NSIG = __SIGRTMAX+1. Move definition of SIGIO to "archaic names for compatibility" section. * bits/signum.h: New file which just includes bits/signum-generic.h. * sysdeps/unix/bsd/bits/signum.h * sysdeps/unix/sysv/linux/bits/signum.h * sysdeps/unix/sysv/linux/alpha/bits/signum.h * sysdeps/unix/sysv/linux/hppa/bits/signum.h * sysdeps/unix/sysv/linux/mips/bits/signum.h * sysdeps/unix/sysv/linux/sparc/bits/signum.h Just include <bits/signum-generic.h> and then add or adjust signal constants. Do not define SIGUNUSED, SIGRTMIN, or SIGRTMAX. * signal/Makefile: Install bits/signum-generic.h. * signal/signal.h: Define SIGRTMIN and SIGRTMAX here. * sysdeps/generic/siglist.h: SIGSYS and SIGWINCH are universal. Prefer SIGPOLL to SIGIO. Simplify #ifdeffage. * sysdeps/unix/sysv/linux/tst-signal-numbers.sh: New test. * sysdeps/unix/sysv/linux/Makefile: Run it. |
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Adhemerval Zanella
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bafcba22ac |
Consolidate Linux openat implementation
This patch consolidates the open Linux syscall implementation on
sysdeps/unix/sysv/linux/open{64}.c. The changes are:
1. Remove wordsize-64 openat{64}.
2. For architetures that define __OFF_T_MATCHES_OFF64_T openat64
will be default one with alias to required symbols. Otherwise
openat64 will pass the required O_LARGEFILE flag on syscall.
Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32,
arch64-linux-gnu, arm-linux-gnueabihf, and powerpc64le-linux-gnu.
* sysdeps/unix/sysv/linux/openat.c (__libc_openat): Build only
for !__OFF_T_MATCHES_OFF64_T.
* sysdeps/unix/sysv/linux/openat64.c (__libc_openat64): New
implementation based on open64.
* sysdeps/unix/sysv/linux/wordsize-64/openat.c: Remove file.
* sysdeps/unix/sysv/linux/wordsize-64/openat64.c: Likewise.
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Joseph Myers
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46ad8909ce |
conformtest: XFAIL uc_mcontext test for powerpc32 (bug 21635).
This patch XFAILs one test where the powerpc32 ucontext_t has the wrong type of a field, to allow the conform/ tests as a whole to pass once the namespace issues are fixed. Tested with build-many-glibcs.py. [BZ #21635] * sysdeps/unix/sysv/linux/powerpc/powerpc32/Makefile [$(subdir) = conform] (conformtest-xfail-conds): New variable. * conform/data/signal.h-data (uc_mcontext): XFAIL for powerpc32-linux. * conform/data/ucontext.h-data (uc_mcontext): Likewise. |
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Joseph Myers
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e0b5a3b654 |
conformtest: XFAIL uc_sigmask test for ia64 (bug 21634).
This patch XFAILs one test where the ia64 ucontext_t has the wrong type of a field, to allow the conform/ tests as a whole to pass once the namespace issues are fixed. Tested with build-many-glibcs.py. [BZ #21634] * sysdeps/unix/sysv/linux/ia64/Makefile [$(subdir) = conform] (conformtest-xfail-conds): New variable. * conform/data/signal.h-data (uc_sigmask): XFAIL for ia64-linux. * conform/data/ucontext.h-data (uc_sigmask): Likewise. |
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H.J. Lu
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905947c304 |
tunables: Add IFUNC selection and cache sizes
The current IFUNC selection is based on microbenchmarks in glibc. It should give the best performance for most workloads. But other choices may have better performance for a particular workload or on the hardware which wasn't available at the selection was made. The environment variable, GLIBC_TUNABLES=glibc.tune.ifunc=-xxx,yyy,-zzz...., can be used to enable CPU/ARCH feature yyy, disable CPU/ARCH feature yyy and zzz, where the feature name is case-sensitive and has to match the ones in cpu-features.h. It can be used by glibc developers to override the IFUNC selection to tune for a new processor or improve performance for a particular workload. It isn't intended for normal end users. NOTE: the IFUNC selection may change over time. Please check all multiarch implementations when experimenting. Also, GLIBC_TUNABLES=glibc.tune.x86_non_temporal_threshold=NUMBER is provided to set threshold to use non temporal store to NUMBER, GLIBC_TUNABLES=glibc.tune.x86_data_cache_size=NUMBER to set data cache size, GLIBC_TUNABLES=glibc.tune.x86_shared_cache_size=NUMBER to set shared cache size. * elf/dl-tunables.list (tune): Add ifunc, x86_non_temporal_threshold, x86_data_cache_size and x86_shared_cache_size. * manual/tunables.texi: Document glibc.tune.ifunc, glibc.tune.x86_data_cache_size, glibc.tune.x86_shared_cache_size and glibc.tune.x86_non_temporal_threshold. * sysdeps/unix/sysv/linux/x86/dl-sysdep.c: New file. * sysdeps/x86/cpu-tunables.c: Likewise. * sysdeps/x86/cacheinfo.c (init_cacheinfo): Check and get data cache size, shared cache size and non temporal threshold from cpu_features. * sysdeps/x86/cpu-features.c [HAVE_TUNABLES] (TUNABLE_NAMESPACE): New. [HAVE_TUNABLES] Include <unistd.h>. [HAVE_TUNABLES] Include <elf/dl-tunables.h>. [HAVE_TUNABLES] (TUNABLE_CALLBACK (set_ifunc)): Likewise. [HAVE_TUNABLES] (init_cpu_features): Use TUNABLE_GET to set IFUNC selection, data cache size, shared cache size and non temporal threshold. * sysdeps/x86/cpu-features.h (cpu_features): Add data_cache_size, shared_cache_size and non_temporal_threshold. |
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Stefan Liebler
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b08a6a0dea |
S390: Sync ptrace.h with kernel. [BZ #21539]
This patch removes PTRACE_GETREGS, PTRACE_SETREGS, PTRACE_GETFPREGS and PTRACE_SETFPREGS as these requests does not exist on s390 kernel. But the kernel has support for PTRACE_SINGLEBLOCK, PTRACE_SECCOMP_GET_FILTER, PTRACE_PEEKUSR_AREA, PTRACE_POKEUSR_AREA, PTRACE_GET_LAST_BREAK, PTRACE_ENABLE_TE, PTRACE_DISABLE_TE and PTRACE_TE_ABORT_RAND. Thus those are defined now. The current kernel s390 specific ptrace.h file also defines PTRACE_PEEKTEXT_AREA, PTRACE_PEEKDATA_AREA, PTRACE_POKETEXT_AREA, PTRACE_POKEDATA_AREA, PTRACE_PEEK_SYSTEM_CALL, PTRACE_POKE_SYSTEM_CALL and PTRACE_PROT, but those requests are not supported. Thus those defines are skipped in glibc ptrace.h. There were old includes of ptrace.h in sysdeps/s390/fpu/fesetenv.c. The ptrace feature isn't used there anymore, thus I removed the includes. Before this patch, <glibc>/sysdeps/unix/sysv/linux/s390/sys/ptrace.h uses ptrace-request 12 for PTRACE_GETREGS, but <kernel>/include/uapi/linux/ptrace.h uses 12 for PTRACE_SINGLEBLOCK. The s390 kernel has never had support for PTRACE_GETREGS! Thus glibc ptrace.h is adjusted to match kernel ptrace.h. The new s390 specific test ensures, that PTRACE_SINGLEBLOCK defined in glibc works as expected. If the kernel would interpret it as PTRACE_GETREGS, then the testcase will not make any progress and will time out. ChangeLog: [BZ #21539] * NEWS: Mention s390 ptrace request changes. * sysdeps/unix/sysv/linux/s390/sys/ptrace.h (PTRACE_GETREGS, PTRACE_SETREGS, PTRACE_GETFPREGS, PTRACE_SETFPREGS): Remove enum constant. (PT_GETREGS, PT_SETREGS, PT_GETFPREGS, T_SETFPREGS): Remove defines. (PTRACE_SINGLEBLOCK): New enum constant. (PT_STEPBLOCK): New define. (PTRACE_PEEKUSR_AREA, PTRACE_POKEUSR_AREA, PTRACE_GET_LAST_BREAK, PTRACE_ENABLE_TE, PTRACE_DISABLE_TE, PTRACE_TE_ABORT_RAND): New enum constant and define. * sysdeps/s390/fpu/fesetenv.c: Remove ptrace.h includes. * sysdeps/unix/sysv/linux/s390/tst-ptrace-singleblock.c: New file. * sysdeps/unix/sysv/linux/s390/Makefile: Add test. |
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Joseph Myers
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487549c466 |
Fix another x86 sys/ucontext.h namespace issue (bug 21457).
This patch fixes a namespace issue for one more field in the x86 sys/ucontext.h that I missed in my previous changes. Tested for x86_64. [BZ #21457] * sysdeps/unix/sysv/linux/x86/sys/ucontext.h [__x86_64__] (struct _libc_xmmreg): Use __ctx in defining field. |
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Joseph Myers
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a66bc30d6b |
Define struct rusage in sys/wait.h when required (bug 21575).
Some older standards (XPG4.2 through POSIX.1:2001, XSI only) require sys/wait.h to include the definition of struct rusage. This is missing in glibc. This patch adds the required definition. struct rusage is moved to a new header bits/types/struct_rusage.h to avoid bringing in the whole of sys/resource.h (although the standards in question do allow the whole of sys/resource.h to be brought in). In the five bits/resource.h headers, the only variation between the definitions of struct rusage is that the sysdeps/unix/sysv/linux version is prepared for x32 (by having anonymous unions with __syscall_slong_t fields) and the others are not. Thus, this version is suitable for use generically (everything other than x32 simply has __syscall_slong_t the same as long int, so there are no API or ABI changes involved, and anonymous unions are already a required language feature for glibc headers elsewhere), and this patch uses it as a base for the single implementation of bits/types/struct_rusage.h. Tested for x86_64, and with build-many-glibcs.py. [BZ #21575] * resource/bits/types/struct_rusage.h: New file. * include/bits/types/struct_rusage.h: Likewise. * bits/resource.h (struct rusage): Include <bits/types/struct_rusage.h> instead of defining here. * sysdeps/unix/sysv/linux/bits/resource.h (struct rusage): Likewise. * sysdeps/unix/sysv/linux/alpha/bits/resource.h (struct rusage): Likewise. * sysdeps/unix/sysv/linux/mips/bits/resource.h (struct rusage): Likewise. * sysdeps/unix/sysv/linux/sparc/bits/resource.h (struct rusage): Likewise. * resource/Makefile (headers): Add bits/types/struct_rusage.h. * posix/sys/wait.h [__USE_XOPEN_EXTENDED && !__USE_XOPEN2K8]: Include <bits/types/struct_rusage.h> |
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Stefan Liebler
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5e5b3b8866 |
S390: Fix build with gcc configured with --enable-default-pie. [BZ #21537]
Building glibc with gcc configured with --enable-default-pie failed on s390 due to assembler messages: ../sysdeps/unix/sysv/linux/s390/s390-32/__makecontext_ret.S:44: Error: junk at end of line, first unrecognized character is `@' HIDDEN_JUMPTARGET was expanded to exit@PLT@GOTOFF. If SHARED is not defined, HIDDEN_JUMPTARGET is defined to JUMPTARGET in sysdeps/s390/s390-32/sysdep.h. There it expanded to exit@PLT in non SHARED case as PIC is defined if gcc is configured with --enable-default-pie. Thus I've changed the "ifdef PIC" to "ifdef SHARED" as we do not want PLTs in the static obj files. I've also changed this in sysdeps/s390/s390-64/sysdep.h. I've also adjusted sysdeps/unix/sysv/linux/s390/s390-32/__makecontext_ret.S. If glibc is configured with --disable-hidden-plt, then NO_HIDDEN is defined. In SHARED case HIDDEN_JUMPTARGET would be expanded to exit@PLT@GOTOFF instead of __GI_exit@GOTOFF. Now we jump to: - __GI_exit if SHARED is defined - exit@PLT if SHARED and NO_HIDDEN is defined - exit if both are not defined. On s390 31bit we have to setup GOT pointer in r12 if we use a PLT stub. Therefore I use SYSCALL_PIC_SETUP from sysdep.h and added the missing semicolons. ChangeLog: [BZ #21537] * sysdeps/s390/s390-32/sysdep.h (JUMPTARGET, SYSCALL_PIC_SETUP): Check SHARED instead of PIC. (SYSCALL_PIC_SETUP): Add missing semicolons. * sysdeps/s390/s390-64/sysdep.h (JUMPTARGET, SYSCALL_PIC_SETUP): Check SHARED instead of PIC. * sysdeps/unix/sysv/linux/s390/s390-32/__makecontext_ret.S (__makecontext_ret): Adjust code to jump to exit. |
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Christian Borntraeger
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35810f5ccf |
s390: optimize syscall function
Since kernel 2.6.0 all Linux version accept the system call number
in register 1 for svc 0. There is no need to have special handling
that uses EX for system calls < 256. This will simplify and speed
up that code.
A microbenchmark doing "syscall(__NR_getpid);" in a loops gets faster
by ~12%.
* sysdeps/unix/sysv/linux/s390/s390-32/syscall.S: Simplify
code by always using SVC 0 instead of EX.
* sysdeps/unix/sysv/linux/s390/s390-64/syscall.S: Likewise.
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|
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Adhemerval Zanella
|
48d966eb35 |
linux: Consolidate sync_file_range implementation
This patch consolidates Linux sync_file_range at default sysdeps/unix/sysv/linux/sync_file_range.c implementation. It also moves the rules flags from generic io/Makefile to Linux one due the fact it is a Linux-only symbol. Checked on i686-linux-gnu and x86_64-linux-gnu. * io/Makefile (CFLAGS-sync_file_range.c): Remove rule. * sysdeps/unix/sysv/linux/Makefile (CFLAGS-sync_file_range.c): New rule. * sysdeps/unix/sysv/linux/wordsize-64/syscalls.list: Remove sync_file_range. |
|
|
Zack Weinberg
|
fd860eaaa8 |
Remove __need macros from errno.h (__need_Emath, __need_error_t).
This is fairly complicated, not because the users of __need_Emath and __need_error_t have complicated requirements, but because the core changes had a lot of fallout. __need_error_t exists for gnulib compatibility in argz.h and argp.h. error_t itself is a Hurdism, an enum containing all the E-constants, so you can do 'p (error_t) errno' in gdb and get a symbolic value. argz.h and argp.h use it for function return values, and they want to fall back to 'int' when that's not available. There is no reason why these nonstandard headers cannot just go ahead and include all of errno.h; so we do that. __need_Emath is defined only by .S files; what they _really_ need is for errno.h to avoid declaring anything other than the E-constants (e.g. 'extern int __errno_location(void);' is a syntax error in assembly language). This is replaced with a check for __ASSEMBLER__ in errno.h, plus a carefully documented requirement for bits/errno.h not to define anything other than macros. That in turn has the consequence that bits/errno.h must not define errno - fortunately, all live ports use the same definition of errno, so I've moved it to errno.h. The Hurd bits/errno.h must also take care not to define error_t when __ASSEMBLER__ is defined, which involves repeating all of the definitions twice, but it's a generated file so that's okay. * stdlib/errno.h: Remove __need_Emath and __need_error_t logic. Reorganize file. Declare errno here. When __ASSEMBLER__ is defined, don't declare anything other than the E-constants. * include/errno.h: Change conditional for exposing internal declarations to (not _ISOMAC and not __ASSEMBLER__). * bits/errno.h: Remove logic for __need_Emath. Document requirements for a port-specific bits/errno.h. * sysdeps/unix/sysv/linux/bits/errno.h * sysdeps/unix/sysv/linux/alpha/bits/errno.h * sysdeps/unix/sysv/linux/hppa/bits/errno.h * sysdeps/unix/sysv/linux/mips/bits/errno.h * sysdeps/unix/sysv/linux/sparc/bits/errno.h: Add multiple-include guard and check against improper inclusion. Remove __need_Emath logic. Don't declare errno here. Ensure all constants are defined as simple integer literals. Consistent formatting. * sysdeps/mach/hurd/errnos.awk: Likewise. Only define error_t and enum __error_t_codes if __ASSEMBLER__ is not defined. * sysdeps/mach/hurd/bits/errno.h: Regenerate. * argp/argp.h, string/argz.h: Don't define __need_error_t before including errno.h. * sysdeps/i386/i686/fpu/multiarch/s_cosf-sse2.S * sysdeps/i386/i686/fpu/multiarch/s_sincosf-sse2.S * sysdeps/i386/i686/fpu/multiarch/s_sinf-sse2.S * sysdeps/x86_64/fpu/s_cosf.S * sysdeps/x86_64/fpu/s_sincosf.S * sysdeps/x86_64/fpu/s_sinf.S: Just include errno.h; don't define __need_Emath or include bits/errno.h directly. |
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Zack Weinberg
|
37f802f864 |
Remove __need_IOV_MAX and __need_FOPEN_MAX.
__need_FOPEN_MAX wasn't being used anywhere. __need_IOV_MAX was more complicated; the basic deal is that sys/uio.h wants to define a constant named UIO_MAXIOV and bits/xopen_lim.h wants to define a constant named IOV_MAX, with the same meaning. For no apparent reason this was being handled via bits/stdio_lim.h -- stdio.h is NOT supposed to define IOV_MAX -- and some mess in Makerules. Also, bits/uio.h on Linux was being used as a dumping ground for extension functions. So now we have bits/uio_lim.h, which defines __IOV_MAX. bits/xopen_lim.h and sys/uio.h use that to define their respective constants. We also now have bits/uio-ext.h, which is the official Proper Home for extensions to sys/uio.h. bits/uio.h is removed, and stdio_lim.h doesn't define IOV_MAX at all. * bits/uio_lim.h, sysdeps/unix/sysv/linux/bits/uio_lim.h * bits/uio-ext.h, sysdeps/unix/sysv/linux/bits/uio-ext.h: New file. * bits/uio.h, sysdeps/unix/sysv/linux/bits/uio.h: Delete file. * include/bits/xopen_lim.h: Use bits/uio_lim.h to get the value for IOV_MAX. * misc/Makefile: Install bits/uio-ext.h and bits/uio_lim.h. Don't install bits/uio.h. * misc/sys/uio.h: Don't include bits/uio.h. Do include bits/types/struct_iovec.h and bits/uio_lim.h. Set UIO_MAXIOV based on __IOV_MAX. Under __USE_GNU, also include bits/uio-ext.h. * stdio-common/stdio_lim.h.in: Remove logic for __need_FOPEN_MAX and __need_IOV_MAX. Don't define IOV_MAX at all. * Makerules (stdio_lim.h): Remove logic for setting IOV_MAX. * sysdeps/unix/sysv/linux/bits/fcntl-linux.h: Include bits/types/struct_iovec.h, not bits/uio.h. Use __ssize_t, not ssize_t, in function prototypes. Don't use hard TAB for double space after period in comments. |
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Alan Modra
|
fb499eb04e |
PowerPC64 FRAME_PARM_SAVE
I think FRAME_PARM[1-9]_SAVE confuse the code, particularly FRAME_PARM9_SAVE. There are only 8 parameter save slots! * sysdeps/powerpc/powerpc64/sysdep.h: (FRAME_BACKCHAIN, FRAME_CR_SAVE, FRAME_LR_SAVE): Move out of conditional. (FRAME_PARM1_SAVE, FRAME_PARM2_SAVE, FRAME_PARM3_SAVE, FRAME_PARM4_SAVE, FRAME_PARM5_SAVE, FRAME_PARM6_SAVE, FRAME_PARM7_SAVE, FRAME_PARM8_SAVE, FRAME_PARM9_SAVE): Delete. * sysdeps/unix/sysv/linux/powerpc/powerpc64/makecontext.S: Replace uses of FRAME_PARM[1-9]_SAVE with FRAME_PARM_SAVE plus offset. |
|
Gordana Cmiljanovic
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b309f058cf |
mips: Fix store/load gp registers to/from ucontext_t
General purpose registers in mcontext_t structure are 8 bytes long for both MIPS32/MIPS64. get/set/make/swap context implementations for MIPS O32 incorrectly assume that general purpose registers in this structure are 4 bytes long. This patch is fixing that. Tested for MIPS O32 LE and BE. Compared objdump of modified functions for mips n32 and mips n64. [BZ #21548] * sysdeps/unix/sysv/linux/mips/getcontext.S: Define MCONTEXT_SZGREG as 8 and use it when copying general purpose registers. * sysdeps/unix/sysv/linux/mips/makecontext.S: Likewise. * sysdeps/unix/sysv/linux/mips/mips32/Makefile: Include new test for mips o32. * sysdeps/unix/sysv/linux/mips/mips32/bug-getcontext-mips-gp.c: Added new test for mips o32. * sysdeps/unix/sysv/linux/mips/setcontext.S: Define MCONTEXT_SZGREG as 8 and use it when copying general purpose registers. * sysdeps/unix/sysv/linux/mips/swapcontext.S: Likewise. |
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Zack Weinberg
|
46ee3da55e |
Remove __need_schedparam and __cpu_set_t_defined.
bits/sched.h has logic to expose only an impl-namespace variant of struct sched_param (i.e. struct __sched_param), but nothing uses it, and the only header that includes bits/sched.h is sched.h. The __need_schedparam logic can therefore be removed. bits/sched.h also has a great deal of code relating to cpu_set_t objects that was *almost* the same between the two versions of bits/sched.h in the tree; a little spelunking indicated that this is because some bug fixes got applied to the Linux-specific bits/sched.h but not the generic one. Introduce a new header, bits/cpu-set.h, containing the version of that code with the bugfixes, have sched.h include it directly, and delete all of the code from both versions of bits/sched.h. Also remove the unnecessary name mangling in the definition of struct sched_param -- POSIX specifies a field 'sched_priority', so there is no reason to define it as '__sched_priority' and then paper over that with a macro. (Just in case someone was using the internal name, 'sched_priority' remains a macro defined to expand to itself, and '__sched_priority' now expands to 'sched_priority'.) Finally, as long as I'm touching these files anyway, merge new constants from linux/sched.h into the Linux bits/sched.h. * bits/sched.h: Remove __need_schedparam logic and replace with a normal multiple-include guard. Change field name in struct sched_param from __sched_priority to sched_priority. Delete everything under #ifndef __cpu_set_t_defined. * sysdeps/unix/sysv/linux/bits/sched.h: Likewise. Also sync with kernel sched.h, adding SCHED_ISO and SCHED_DEADLINE constants. * posix/sched.h: Include bits/cpu-set.h as well as bits/sched.h. For compatibility, #define sched_priority to itself, and #define __sched_priority as sched_priority. * posix/bits/cpu-set.h: New file containing, verbatim, the code that was under #ifndef __cpu_set_t_defined in sysdeps/unix/sysv/linux/bits/sched.h. * include/bits/cpu-set.h: New wrapper. * posix/Makefile: Install bits/cpu-set.h. |
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Paul Clarke
|
cdfbe5037f |
powerpc: add sysconf support for cache geometries
There is currently no "cross-platform" (x86 and POWER) support for determining the cacheline size. This patch adds support to sysconf() to correctly report cacheline sizes based on the information in the auxilliary vector. Thus, using sysconf() is a cross-platform (x86 and POWER) solution for determining cacheline sizes. Support is added (on powerpc) for: _SC_LEVEL1_ICACHE_SIZE _SC_LEVEL1_ICACHE_ASSOC _SC_LEVEL1_ICACHE_LINESIZE _SC_LEVEL1_DCACHE_SIZE _SC_LEVEL1_DCACHE_ASSOC _SC_LEVEL1_DCACHE_LINESIZE _SC_LEVEL2_CACHE_SIZE _SC_LEVEL2_CACHE_ASSOC _SC_LEVEL2_CACHE_LINESIZE _SC_LEVEL3_CACHE_SIZE _SC_LEVEL3_CACHE_ASSOC _SC_LEVEL3_CACHE_LINESIZE * sysdeps/unix/sysv/linux/powerpc/sysconf.c: New file. Add powerpc-specific overrides for L1, L2, L3 CACHE_SIZEs, CACHE_ASSOCs, and CACHE_LINESIZEs, retrieving from auxv. * sysdeps/unix/sysv/linux/powerpc/test-powerpc-linux-sysconf.c: New file. Invoke newly supported sysconf values for powerpc, and report results. If none are supported, report so. * sysdeps/unix/sysv/linux/powerpc/Makefile (tests): Add new test, tst-sysconf. |
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Joseph Myers
|
a17973efc6 |
Fix waitid namespace (bug 21561).
In sys/wait.h, waitid and associated constants and types are UX-shaded in XPG4.2 (so not in XPG4), and XSI-shaded in POSIX before 2008, so should be appropriately conditional in the headers. This patch fixes the conditionals accordingly. (WCONTINUED is actually still XSI-shaded in POSIX.1:2008, but W* is also reserved there without XSI-shading, so nothing special needs to be done about the conditionals on WCONTINUED to conform to POSIX.1:2008 namespace rules.) Tested for x86_64. [BZ #21561] * posix/sys/wait.h (idtype_t): Change [__USE_XOPEN] condition to [__USE_XOPEN_EXTENDED]. (id_t): Likewise. (include of <bits/types/siginfo_t.h): Likewise. (waitid): Likewise. * sysdeps/unix/sysv/linux/bits/waitflags.h (WSTOPPED): Condition on [__USE_XOPEN_EXTENDED || __USE_XOPEN2K8]. (WEXITED): Likewise. (WCONTINUED): Likewise. (WNOWAIT): Likewise. * conform/Makefile (test-xfail-XPG4/stdlib.h/conform): Remove. (test-xfail-XPG4/sys/wait.h/conform): Likewise. (test-xfail-POSIX/sys/wait.h/conform): Likewise. |
|
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Joseph Myers
|
10d33c5a86 |
Update nios2, sparc32 localplt.data files for recent GCC change.
A recent GCC change to expand floating-point classification built-in functions inline using integer rather than floating-point arithmetic in some cases resulted in localplt test failures for nios2 and sparc32 <https://sourceware.org/ml/libc-testresults/2017-q2/msg00320.html>. This patch updates the localplt.data files in question to mark the relevant symbols as optional / add a new optional symbol. (The GCC patch has been reverted because of other problems it caused, but one can assume it will be applied again, without changes that would affect the PLT entries generated, once those issues have been resolved.) Tested with build-many-glibcs.py. * sysdeps/unix/sysv/linux/nios2/localplt.data (__gtdf2): Mark libc.so PLT entry optional. (__gtsf2): Likewise. (__unorddf2): Likewise. (__unordsf2): Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/localplt.data (_Q_fgt): New optional libc.so PLT entry. |
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Siddhesh Poyarekar
|
6c85cc2852 |
aarch64: Fix undefined behavior in _dl_procinfo
1 << 31 is undefined, so replace it with a cleaner check. Also remove magic numbers in comments. * sysdeps/unix/sysv/linux/aarch64/dl-procinfo.h: Remove mention of magic numbers in comments. (_dl_procinfo): Fix undefined behavior |
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H.J. Lu
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37b66c0b1a |
ld.so: Consolidate 2 strtouls into _dl_strtoul [BZ #21528]
There are 2 minimal strtoul implementations in ld.so: 1. __strtoul_internal in elf/dl-minimal.c. 2. tunables_strtoul in elf/dl-tunables.c. This patch adds _dl_strtoul to replace them. Tested builds with and without --enable-tunables. [BZ #21528] * elf/dl-minimal.c (__strtoul_internal): Removed. (strtoul): Likewise. * elf/dl-misc.c (_dl_strtoul): New function. * elf/dl-tunables.c (tunables_strtoul): Removed. (tunable_initialize): Replace tunables_strtoul with _dl_strtoul. * elf/rtld.c (process_envvars): Likewise. * sysdeps/unix/sysv/linux/dl-librecon.h (_dl_osversion_init): Likewise. * sysdeps/generic/ldsodefs.h (_dl_strtoul): New prototype. |
|
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Zack Weinberg
|
199fc19d3a |
Remove __need macros from stdio.h and wchar.h.
wint_t is a little finicky because it might be defined by stddef.h, which belongs to the compiler. In addition to the _types_, a bunch of other declarations shared between wctype.h and wchar.h are factored out to their own header. * libio/bits/types/FILE.h, libio/bits/types/__FILE.h * wcsmbs/bits/types/mbstate_t.h, wcsmbs/bits/types/__mbstate_t.h * wcsmbs/bits/types/wint_t.h: New single-type definition files. * wctype/bits/wctype-wchar.h: New file holding declarations shared between wctype.h and wchar.h. * libio/Makefile, wcsmbs/Makefile, wctype/Makefile: Install them. * include/bits/types/FILE.h, include/bits/types/__FILE.h * include/bits/types/mbstate_t.h, include/bits/types/__mbstate_t.h * include/bits/types/wint_t.h, include/bits/wcsmbs-wchar.h: New wrappers. * include/stdio.h, include/wchar.h, include/wctype.h: No need to handle __need macros. * grp/grp.h, gshadow/gshadow.h, hurd/hurd.h, iconv/gconv.h * libio/stdio.h, mach/mach.h, misc/mntent.h, pwd/pwd.h * shadow/shadow.h, stdio-common/printf.h, wcsmbs/uchar.h * wcsmbs/wchar.h, wctype/wctype.h * sysdeps/generic/_G_config.h, sysdeps/unix/sysv/linux/_G_config.h Use the new files instead of __need macros. |
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Arjun Shankar
|
8f0a947cf5 |
Remove check for NULL buffer passed to `ptsname_r'
`ptsname_r' is declared in stdlib.h to only accept a `nonnull' second argument and therefore GCC may choose to make optimizations based on the assumption that this argument is NULL. This means that potentially, GCC can optimize away the NULL check at some point in the future. Since this is a programming interface, we might as well remove the NULL check ourselves. This also warrants a change to the `ptsname_r' manual page that must be submitted to the corresponding mailing list. In addition, remove the NULL buffer test in login/tst-ptsname.c. |
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Arjun Shankar
|
fdc543919a | Use test-driver in sysdeps/unix/sysv/linux/tst-clone2.c | |
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Siddhesh Poyarekar
|
ea01a4da21 |
aarch64: Add hwcap string routines
Add support for routines in dl-procinfo.h to show string versions of HWCAP entries when a program is invoked with the LD_SHOW_AUXV environment variable set and also to aid in path resolution for ldconfig. * sysdeps/unix/sysv/linux/aarch64/dl-procinfo.c (_dl_aarch64_cap_flags): New array. * sysdeps/unix/sysv/linux/aarch64/dl-procinfo.h (_dl_hwcap_string, _dl_string_hwcap, _dl_procinfo): Implement functions. |
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Siddhesh Poyarekar
|
f82e9672ad |
aarch64: Allow overriding HWCAP_CPUID feature check using HWCAP_MASK
Now that LD_HWCAP_MASK (or glibc.tune.hwcap_mask) is read early enough to influence cpu feature check in aarch64, use it to influence multiarch selection. Setting LD_HWCAP_MASK such that it clears HWCAP_CPUID will now disable multiarch for the binary. HWCAP_CPUID is also now set in HWCAP_IMPORTANT so that it is set by default. With this patch, this feature is only usable with dyanmically linked binaries because LD_HWCAP_MASK is not read for static binaries. A future patch fixes that. * sysdeps/unix/sysv/linux/aarch64/cpu-features.c (init_cpu_features): Use glibc.tune.hwcap_mask. * sysdeps/unix/sysv/linux/aarch64/dl-procinfo.h: New file. |
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Siddhesh Poyarekar
|
6482e63403 |
Add include guards to dl-procinfo.h
The dl-procinfo.h for linux/s390 and linux/i386 don't have include guards, which causes them to fail since addition of LD_HWCAP_MASK to tunables. Add _DL_I386_PROCINFO_H guard to avoid redefining _dl_procinfo on multiple includes and also allow the subsequent include of another dl-procinfo.h to work. Verified with a build test on i686. * sysdeps/unix/sysv/linux/i386/dl-procinfo.h: Add include guard. * sysdeps/unix/sysv/linux/s390/dl-procinfo.h: Likewise. |
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Stefan Liebler
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12d2dd7060 |
Optimize generic spinlock code and use C11 like atomic macros.
This patch optimizes the generic spinlock code. The type pthread_spinlock_t is a typedef to volatile int on all archs. Passing a volatile pointer to the atomic macros which are not mapped to the C11 atomic builtins can lead to extra stores and loads to stack if such a macro creates a temporary variable by using "__typeof (*(mem)) tmp;". Thus, those macros which are used by spinlock code - atomic_exchange_acquire, atomic_load_relaxed, atomic_compare_exchange_weak - have to be adjusted. According to the comment from Szabolcs Nagy, the type of a cast expression is unqualified (see http://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_423.htm): __typeof ((__typeof (*(mem)) *(mem)) tmp; Thus from spinlock perspective the variable tmp is of type int instead of type volatile int. This patch adjusts those macros in include/atomic.h. With this construct GCC >= 5 omits the extra stores and loads. The atomic macros are replaced by the C11 like atomic macros and thus the code is aligned to it. The pthread_spin_unlock implementation is now using release memory order instead of sequentially consistent memory order. The issue with passed volatile int pointers applies to the C11 like atomic macros as well as the ones used before. I've added a glibc_likely hint to the first atomic exchange in pthread_spin_lock in order to return immediately to the caller if the lock is free. Without the hint, there is an additional jump if the lock is free. I've added the atomic_spin_nop macro within the loop of plain reads. The plain reads are also realized by C11 like atomic_load_relaxed macro. The new define ATOMIC_EXCHANGE_USES_CAS determines if the first try to acquire the spinlock in pthread_spin_lock or pthread_spin_trylock is an exchange or a CAS. This is defined in atomic-machine.h for all architectures. The define SPIN_LOCK_READS_BETWEEN_CMPXCHG is now removed. There is no technical reason for throwing in a CAS every now and then, and so far we have no evidence that it can improve performance. If that would be the case, we have to adjust other spin-waiting loops elsewhere, too! Using a CAS loop without plain reads is not a good idea on many targets and wasn't used by one. Thus there is now no option to do so. Architectures are now using the generic spinlock automatically if they do not provide an own implementation. Thus the pthread_spin_lock.c files in sysdeps folder are deleted. ChangeLog: * NEWS: Mention new spinlock implementation. * include/atomic.h: (__atomic_val_bysize): Cast type to omit volatile qualifier. (atomic_exchange_acq): Likewise. (atomic_load_relaxed): Likewise. (ATOMIC_EXCHANGE_USES_CAS): Check definition. * nptl/pthread_spin_init.c (pthread_spin_init): Use atomic_store_relaxed. * nptl/pthread_spin_lock.c (pthread_spin_lock): Use C11-like atomic macros. * nptl/pthread_spin_trylock.c (pthread_spin_trylock): Likewise. * nptl/pthread_spin_unlock.c (pthread_spin_unlock): Use atomic_store_release. * sysdeps/aarch64/nptl/pthread_spin_lock.c: Delete File. * sysdeps/arm/nptl/pthread_spin_lock.c: Likewise. * sysdeps/hppa/nptl/pthread_spin_lock.c: Likewise. * sysdeps/m68k/nptl/pthread_spin_lock.c: Likewise. * sysdeps/microblaze/nptl/pthread_spin_lock.c: Likewise. * sysdeps/mips/nptl/pthread_spin_lock.c: Likewise. * sysdeps/nios2/nptl/pthread_spin_lock.c: Likewise. * sysdeps/aarch64/atomic-machine.h (ATOMIC_EXCHANGE_USES_CAS): Define. * sysdeps/alpha/atomic-machine.h: Likewise. * sysdeps/arm/atomic-machine.h: Likewise. * sysdeps/i386/atomic-machine.h: Likewise. * sysdeps/ia64/atomic-machine.h: Likewise. * sysdeps/m68k/coldfire/atomic-machine.h: Likewise. * sysdeps/m68k/m680x0/m68020/atomic-machine.h: Likewise. * sysdeps/microblaze/atomic-machine.h: Likewise. * sysdeps/mips/atomic-machine.h: Likewise. * sysdeps/powerpc/powerpc32/atomic-machine.h: Likewise. * sysdeps/powerpc/powerpc64/atomic-machine.h: Likewise. * sysdeps/s390/atomic-machine.h: Likewise. * sysdeps/sparc/sparc32/atomic-machine.h: Likewise. * sysdeps/sparc/sparc32/sparcv9/atomic-machine.h: Likewise. * sysdeps/sparc/sparc64/atomic-machine.h: Likewise. * sysdeps/tile/tilegx/atomic-machine.h: Likewise. * sysdeps/tile/tilepro/atomic-machine.h: Likewise. * sysdeps/unix/sysv/linux/hppa/atomic-machine.h: Likewise. * sysdeps/unix/sysv/linux/m68k/coldfire/atomic-machine.h: Likewise. * sysdeps/unix/sysv/linux/nios2/atomic-machine.h: Likewise. * sysdeps/unix/sysv/linux/sh/atomic-machine.h: Likewise. * sysdeps/x86_64/atomic-machine.h: Likewise. |
|
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H.J. Lu
|
d8a7d10324 |
x86-64: Update LO_HI_LONG for p{readv,writev}{64}v2
The kernel interface for p{readv,writev}{64}v is
(unsigned long fd, {const }struct iovec *iov, unsigned long vlen,
unsigned long pos_l, unsigned long pos_h)
Except for targets which define __ARCH_WANT_COMPAT_SYS_PREADV64 and
__ARCH_WANT_COMPAT_SYS_PWRITEV64,
(unsigned long fd, {const }struct iovec *iov, unsigned long vlen,
off64_t pos)
is used for p{readv,writev}{64}v. X32 is the only such target. The
LO_HI_LONG macro is used to pass offset to the pos_l and pos_h pair.
Since pos_h is ignored when size of offset == sizeof of pos_l, x86-64
has
#define LO_HI_LONG(val) (val)
But the kernel interface for p{readv,writev}{64}v2 is
(unsigned long fd, {const }struct iovec *iov, unsigned long vlen,
unsigned long pos_l, unsigned long pos_h, int flags)
Except for targets which define __ARCH_WANT_COMPAT_SYS_PREADV64V2 and
__ARCH_WANT_COMPAT_SYS_PWRITEV64V2,
(unsigned long fd, {const }struct iovec *iov, unsigned long vlen,
off64_t pos, int flags)
is used for p{readv,writev}{64}v2. X32 is the only such target. Update
x86-64 LO_HI_LONG to pass 0 as the high part of the offset argument for
p{readv,writev}{64}v2 and define a different LO_HI_LONG for x32 to only
pass one argument for offset.
Tested on x32 and x86-64.
* sysdeps/unix/sysv/linux/x86_64/sysdep.h (LO_HI_LONG): Pass
0 as the high part of offset.
* sysdeps/unix/sysv/linux/x86_64/x32/sysdep.h (LO_HI_LONG): New.
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|
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Joseph Myers
|
c4c96f92f7 |
Define SIG_HOLD for XPG4 (bug 21538).
Various bits/signum.h headers define SIG_HOLD if __USE_UNIX98. That should be __USE_XOPEN, as this macro is in XPG4. This patch fixes the conditionals accordingly. Because of other header bugs, this does not allow any XFAILs to be removed (however, the XPG4/signal.h/conform XFAIL only depends on a few such straightforward header bugs, not on the more complicated to fix ucontext_t issues, as ucontext_t isn't included in signal.h in XPG4). Tested for x86_64. [BZ #21538] * bits/signum.h (SIG_HOLD): Define if [__USE_XOPEN], not [__USE_UNIX98]. * sysdeps/unix/bsd/bits/signum.h (SIG_HOLD): Likewise. * sysdeps/unix/sysv/linux/alpha/bits/signum.h (SIG_HOLD): Likewise. * sysdeps/unix/sysv/linux/bits/signum.h (SIG_HOLD): Likewise. * sysdeps/unix/sysv/linux/hppa/bits/signum.h (SIG_HOLD): Likewise. * sysdeps/unix/sysv/linux/mips/bits/signum.h (SIG_HOLD): Likewise. * sysdeps/unix/sysv/linux/sparc/bits/signum.h (SIG_HOLD): Likewise. |
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Joseph Myers
|
7553131847 |
Fix struct sigaltstack namespace (bug 21517).
glibc defines the stack_t type with the tag struct sigaltstack. This is not permitted by POSIX; sigaltstack is only reserved with file scope in the namespace of ordinary identifiers, not the tag namespace, and in the case where stack_t is obtained from ucontext.h rather than signal.h, it's not reserved with file scope at all. This patch removes the tag accordingly and updates uses in glibc of struct sigaltstack. This is similar to the removal of the "struct siginfo" tag a few years ago: C++ name mangling changes are an unavoidable consequence. A NEWS item is added to note the changed mangling. There is inevitably some risk of breaking builds of anything that relies on the struct sigaltstack name (though the first few hits I looked at from codesearch.debian.net generally seemed to involve code that could use the stack_t name conditionally, so depending on how they determine the conditionals they may work with glibc not defining the struct tag anyway). Tested for x86_64 and x86, and with build-many-glibcs.py. [BZ #21517] * bits/types/stack_t.h (stack_t): Remove struct tag. * sysdeps/unix/sysv/linux/bits/types/stack_t.h (stack_t): Likewise. * sysdeps/unix/sysv/linux/mips/bits/types/stack_t.h (stack_t): Likewise. * debug/segfault.c (install_handler): Use stack_t instead of struct sigaltstack. * hurd/hurd/signal.h (struct hurd_sigstate): Likewise. * hurd/trampoline.c (_hurd_setup_sighandler): Likewise. * include/signal.h (__sigaltstack): Likwise. * signal/sigaltstack.c (__sigaltstack): Likewise. * signal/signal.h (sigaltstack): Likewise. * sysdeps/mach/hurd/i386/signal-defines.sym (SIGALTSTACK__SS_SP__OFFSET): Likewise. (SIGALTSTACK__SS_SIZE__OFFSET): Likewise. (SIGALTSTACK__SS_FLAGS__OFFSET): Likewise. * sysdeps/mach/hurd/sigaltstack.c (__sigaltstack): Likewise. * sysdeps/mach/hurd/sigstack.c (sigstack): Likewise. * sysdeps/unix/sysv/linux/alpha/sys/procfs.h (struct elf_prstatus): Likewise. * sysdeps/unix/sysv/linux/hppa/____longjmp_chk.c (CHECK_SP): Likewise. * sysdeps/unix/sysv/linux/ia64/sys/procfs.h (struct elf_prstatus): Likewise. * sysdeps/unix/sysv/linux/m68k/____longjmp_chk.c (CHECK_SP): Likewise. * sysdeps/unix/sysv/linux/powerpc/sys/procfs.h (struct elf_prstatus): Likewise. * sysdeps/unix/sysv/linux/sh/sys/procfs.h (struct elf_prstatus): Likewise. * sysdeps/unix/sysv/linux/sys/procfs.h (struct elf_prstatus): Likewise. |
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Zack Weinberg
|
72b81552a1 |
Add shim header for bits/syscall.h.
On Linux-based configurations, bits/syscall.h is a generated file. To avoid build-ordering problems, the Linux sys/syscall.h only includes bits/syscall.h if _LIBC is not defined. After the _ISOMAC-testsuite changes, this means any test case that includes sys/syscall.h tries to pull in bits/syscall.h. This would be fine, because it'll definitely have been generated by the time we start compiling tests, except that the generated <builddir>/misc/bits/syscall.h is not visible in the include path, because nothing needed it till now. So we either get the bits/syscall.h from the host system, or the build fails. The fix is simple: add a shim header for bits/syscall.h. I put it in sysdeps/unix/sysv/linux/include instead of the top-level include/ because bits/syscall.h doesn't exist at all on other configurations as far as I can tell. This is known to affect nptl/tst-cond2[45]. Thanks to John David Anglin for noticing the problem. [BZ #21514] * sysdeps/unix/sysv/linux/include/bits/syscall.h: New shim header pointing to the generated file in <builddir>/misc/bits/syscall.h. |
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Joseph Myers
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139904b7e4 |
Fix more namespace issues in sys/ucontext.h (bug 21457).
Continuing the fixes for namespace issues in sys/ucontext.h, this patch moves various symbols into the implementation namespace in the absence of __USE_MISC. As with previous changes, it is nonexhaustive, just covering more straightforward cases. Structure fields are generally changed to have a prefix __ in the absence of __USE_MISC, via a macro __ctx (used without a space before the open parenthesis, since the result is a single identifier). Various macros such as NGREG also have leading __ added. No changes are made to structure tags (and thus to C++ name mangling), except that in the (unused) file sysdeps/i386/sys/ucontext.h, structures defined inside other structures as the type for a field have their tags removed in the non-__USE_MISC case (those structure tags would not in any case have been visible in C++, because in C++ the scope of such a tag is limited to the containing structure). No changes are made to the contents of bits/sigcontext.h, or to whether it is included. Because of remaining namespace issues, this patch does not yet fix the bug or allow any XFAILs to be removed. Tested for x86_64 and x86, and with build-many-glibcs.py. [BZ #21457] * sysdeps/arm/sys/ucontext.h (NGREG): Rename to __NGREG and define NGREG to __NGREG if [__USE_MISC]. (gregset_t): Define using __NGREG. (__ctx): New macro. (mcontext_t): Use __ctx in defining fields. * sysdeps/i386/sys/ucontext.h (NGREG): Rename to __NGREG and define NGREG to __NGREG if [__USE_MISC]. (gregset_t): Define using __NGREG. (__ctx): New macro. (__ctxt): Likewise. (fpregset_t): Use __ctx and __ctxt in defining fields. (mcontext_t): Likewise. * sysdeps/m68k/sys/ucontext.h (NGREG): Rename to __NGREG and define NGREG to __NGREG if [__USE_MISC]. (gregset_t): Define using __NGREG. (__ctx): New macro. (mcontext_t): Use __ctx in defining fields. * sysdeps/mips/sys/ucontext.h (NGREG): Rename to __NGREG and define NGREG to __NGREG if [__USE_MISC]. (gregset_t): Define using __NGREG. (__ctx): New macro. (fpregset_t): Use __ctx in defining fields. (mcontext_t): Likewise. * sysdeps/unix/sysv/linux/alpha/sys/ucontext.h (NGREG): Rename to __NGREG and define NGREG to __NGREG if [__USE_MISC]. (gregset_t): Define using __NGREG. (NFPREG): Rename to __NFPREG and define NFPREG to __NFPREG if [__USE_MISC]. (fpregset_t): Define using __NFPREG. * sysdeps/unix/sysv/linux/m68k/sys/ucontext.h (NGREG): Rename to __NGREG and define NGREG to __NGREG if [__USE_MISC]. (gregset_t): Define using __NGREG. (__ctx): New macro. (fpregset_t): Use __ctx in defining fields. (mcontext_t): Likewise. * sysdeps/unix/sysv/linux/mips/sys/ucontext.h (NGREG): Rename to __NGREG and define NGREG to __NGREG if [__USE_MISC]. (NFPREG): Rename to __NFPREG and define NFPREG to __NFPREG if [__USE_MISC]. (gregset_t): Define using __NGREG. (__ctx): New macro. (fpregset_t): Use __ctx in defining fields. (mcontext_t): Likewise. * sysdeps/unix/sysv/linux/nios2/sys/ucontext.h (__ctx): New macro. (mcontext_t): Use __ctx in defining fields. * sysdeps/unix/sysv/linux/powerpc/sys/ucontext.h (__ctx): New macro. [__WORDSIZE == 32] (NGREG): Rename to __NGREG and define NGREG to __NGREG if [__USE_MISC]. [__WORDSIZE == 32] (gregset_t): Define using __NGREG. [__WORDSIZE == 32] (fpregset_t): Use __ctx in defining fields. (mcontext_t): Likewise. [__WORDSIZE != 32] (NGREG): Rename to __NGREG and define NGREG to __NGREG if [__USE_MISC]. [__WORDSIZE != 32] (NFPREG): Rename to __NFPREG and define NFPREG to __NFPREG if [__USE_MISC]. [__WORDSIZE != 32] (NVRREG): Rename to __NVRREG and define NVRREG to __NVRREG if [__USE_MISC]. [__WORDSIZE != 32] (gregset_t): Define using __NGREG. [__WORDSIZE != 32] (fpregset_t): Define using __NFPREG. [__WORDSIZE != 32] (vscr_t): Use __ctx in defining fields. [__WORDSIZE != 32] (vrregset_t): Likewise. [__WORDSIZE != 32] (mcontext_t): Likewise. * sysdeps/unix/sysv/linux/s390/sys/ucontext.h (__ctx): New macro. (__psw_t): Use __ctx in defining fields. (NGREG): Rename to __NGREG and define NGREG to __NGREG if [__USE_MISC]. (gregset_t): Define using __NGREG. (fpreg_t): Use __ctx in defining fields. (fpregset_t): Likewise. (mcontext_t): Likewise. * sysdeps/unix/sysv/linux/sh/sys/ucontext.h (NGREG): Rename to __NGREG and define NGREG to __NGREG if [__USE_MISC]. (gregset_t): Define using __NGREG. (NFPREG): Rename to __NFPREG and define NFPREG to __NFPREG if [__USE_MISC]. (fpregset_t): Define using __NFPREG. (__ctx): New macro. (mcontext_t): Use __ctx in defining fields. * sysdeps/unix/sysv/linux/x86/sys/ucontext.h (__ctx): New macro. [__x86_64__] (NGREG): Rename to __NGREG and define NGREG to __NGREG if [__USE_MISC]. [__x86_64__] (gregset_t): Define using __NGREG. [__x86_64__] (struct _libc_fpxreg): Use __ctx in defining fields. [__x86_64__] (struct _libc_fpstate): Likewise. [__x86_64__] (mcontext_t): Likewise. [!__x86_64__] (NGREG): Rename to __NGREG and define NGREG to __NGREG if [__USE_MISC]. [!__x86_64__] (gregset_t): Define using __NGREG. [!__x86_64__] (struct _libc_fpreg): Use __ctx in defining fields. [!__x86_64__] (struct _libc_fpstate): Likewise. [!__x86_64__] (mcontext_t): Likewise. |
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Zack Weinberg
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491bb0858e |
Avoid tickling a linker bug from microblaze pt-vfork.S.
libpthread used to have its own vfork implementation that differed from libc's only in having a pointless micro-optimization. There is no longer any use to having a separate copy in libpthread, but the historical ABI requires a compatibility shim. microblaze was trying to be slightly too clever about how it did this, and tickled a linker bug. The linker bug should get fixed eventually, but there's no reason for us to keep tickling it in the meantime. This doesn't reuse the generic pt-vfork.c because microblaze doesn't have IFUNC support yet, and it doesn't reuse aarch64/pt-vfork.c because that fails to generate a tailcall (with GCC 7.1.1). * sysdeps/unix/sysv/linux/microblaze/pt-vfork.S: Don't include alpha/pt-vfork.S. Provide own compat shim for vfork and __vfork. * sysdeps/unix/sysv/linux/microblaze/vfork.S: Add __libc_vfork alias. * sysdeps/unix/sysv/linux/microblaze/localplt.data: libpthread.so no longer references __errno_location. |
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Adhemerval Zanella
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52bd938169 |
posix: Implement preadv2 and pwritev2
This patch adds support of preadv2 and pwritev2 which are similar to
preadv/pwritev but with an extra flag argument. As for preadv/pwritev
both interfaces are added a non-standard GNU API.
For default 'posix' implementation trying to emulate the Linux supported
flags is troublesome:
* We can not temporary change the file state of the O_DSYNC and O_SYNC
flags to emulate RWF_{D}SYNC (attempts to change the state of using
fcntl are silently ignored).
* IOCB_HIPRI requires the file opened in O_DIRECT and uses an internal
semantic not provided by any other flag (O_NONBLOCK for instance).
So default sysdeps/posix implementations fails with EOPNOTSUPP for any non
supported flag (which are none currently) calls generic preadv/pwritev.
Basically this implementation supports only preadv2 called as preadv (with
flags sets to 0).
The Linux one uses the preadv2/pwritev2 syscall if defined, otherwise it
call preadv/writev. Instead of using the previous __ASSUME_* to
unconditionally issue the syscall (and avoid building the fallback routine),
it call pread/write if the preadv2/pwritev2 syscalls fails. The idea
is just avoid adding another __ASSUME_* and checking each architecture
on every kernel bump and simplify code conditionals.
Checked on x86_64-linux-gnu and on i686-linux-gnu and a check with
run-built-tests=no on aarch64-linux-gnu, alpha-linux-gnu, arm-linux-gnueabihf,
ia64-linux-gnu, m68k-linux-gnu, microblaze-linux-gnu, mips{64,64n32}-linux-gnu,
nios2-linux-gnu, powerpc{64,64le}-linux-gnu, s390{x}-linux-gnu,
sparc{64,v9}-linux-gnu, tile{gx,pro}-linux-gnu, and sh4-linux-gnu (all using
gcc 6.3).
* NEWS: Add note about pwritev2 and preadv2 inclusion.
* misc/Makefile (routines): Add preadv2, preadv64v2, pwritev2, and
pwritev64v2.
(tests): Add tst-preadvwritev2 and tst-preadvwritev64v2.
* misc/Versions (GLIBC_2.26): Add preadv2, preadv64v2, pwritev2, and
pwritev64v2.
* misc/preadv2.c: New file.
* misc/preadv64v2.c: Likewise.
* misc/pwritev2.c: Likewise.
* misc/pwritev64v2.c: Likewise.
* misc/tst-preadvwritev2.c: Likewise.
* misc/tst-preadvwritev64v2.c: Likewise.
* manual/llio.texi: Add preadv2 and pwritev2 documentation.
* misc/sys/uio.h [__USE_GNU && !__USE_FILE_OFFSET64] (preadv2): New
prototype.
[__USE_GNU && !__USE_FILE_OFFSET64] (pwritev2): Likewise.
[__USE_GNU && __USE_FILE_OFFSET64] (preadv64v2): Likewise.
[__USE_GNU && __USE_FILE_OFFSET64] (pwritev64v2): Likewise.
* misc/tst-preadvwritev-common.c (PREADV): Define if not defined.
(PWRITEV): Likewise.
(do_test_with_offset): Use PREADV and PWRITEV macros and check for
ENOSYS.
* nptl/tst-cancel4.c (tf_pwritev2): New test.
(tf_preadv2): Likewise.
(tf_fsync): Add tf_pwritev2 and tf_preadv2.
* sysdeps/posix/preadv2.c: Likewise.
* sysdeps/posix/preadv64v2.c: Likewise.
* sysdeps/posix/pwritev2.c: Likewise.
* sysdeps/posix/pwritev64v2.c: Likewise.
* sysdeps/unix/sysv/linux/kernel-features.h: Add comment for syscall
support in kernel.
* sysdeps/unix/sysv/linux/preadv2.c: Likewise.
* sysdeps/unix/sysv/linux/preadv64v2.c: Likewise.
* sysdeps/unix/sysv/linux/pwritev2.c: Likewise.
* sysdeps/unix/sysv/linux/pwritev64v2.c: Likewise.
* sysdeps/unix/sysv/linux/preadv.c (preadv): Add libc_hidden_def.
* sysdeps/unix/sysv/linux/preadv64.c (preadv64): Likewise.
* sysdeps/unix/sysv/linux/pwritev.c (pwritev): Likewise.
* sysdeps/unix/sysv/linux/pwritev64.c (pwritev64): Likewise.
* sysdeps/unix/sysv/linux/bits/uio.h: Add supported preadv2/pwritev2
support flags on Linux.
* sysdeps/unix/sysv/linux/aarch64/libc.abilist (GLIBC_2.26): Add
preadv2, preadv64v2, pwritev2, pwritev64v2.
* sysdeps/unix/sysv/linux/alpha/libc.abilist (GLIBC_2.26): Likewise.
* sysdeps/unix/sysv/linux/arm/libc.abilist (GLIBC_2.26): Likewise.
* sysdeps/unix/sysv/linux/hppa/libc.abilist (GLIBC_2.26): Likewise.
* sysdeps/unix/sysv/linux/i386/libc.abilist (GLIBC_2.26): Likewise.
* sysdeps/unix/sysv/linux/ia64/libc.abilist (GLIBC_2.26): Likewise.
* sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist (GLIBC_2.26):
Likewise.
* sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist (GLIBC_2.26):
Likewise.
* sysdeps/unix/sysv/linux/microblaze/libc.abilist (GLIBC_2.26):
Likewise.
* sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist (GLIBC_2.26):
Likewise.
* sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist (GLIBC_2.26):
Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist (GLIBC_2.26):
Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist (GLIBC_2.26):
Likewise.
* sysdeps/unix/sysv/linux/nios2/libc.abilist (GLIBC_2.26): Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist
(GLIBC_2.26): Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist
(GLIBC_2.26): Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/libc.abilist (GLIBC_2.26):
Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/libc-le.abilist
(GLIBC_2.26): Likewise.
* sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist (GLIBC_2.26):
Likewise.
* sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist (GLIBC_2.26):
Likewise.
* sysdeps/unix/sysv/linux/sh/libc.abilist (GLIBC_2.26): Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist (GLIBC_2.26):
Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist (GLIBC_2.26):
Likewise.
* sysdeps/sysv/linux/tile/tilegx/tilegx32/libc.abilist (GLIBC_2.26):
Likewise.
* sysdeps/sysv/linux/tile/tilegx/tilegx64/libc.abilist (GLIBC_2.26):
Likewise.
* sysdeps/unix/sysv/linux/tile/tilepro/libc.abilist (GLIBC_2.26):
Likewise.
* sysdeps/unix/sysv/linux/x86_64/64/libc.abilist (GLIBC_2.26):
Likewise.
* sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist (GLIBC_2.26):
Likewise.
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Siddhesh Poyarekar
|
4158ba082c |
Delay initialization of CPU features struct in static binaries
Allow the CPU features structure set up to be overridden by tunables by delaying it to until after tunables are initialized. The initialization is already delayed in dynamically linked glibc, it is only in static binaries that the initialization is set early to allow it to influence IFUNC relocations that happen in libc-start. It is a bit too early however and there is a good place between tunables initialization and IFUNC relocations where this can be done. Verified that this does not regress the testsuite. * csu/libc-start.c [!ARCH_INIT_CPU_FEATURES]: Define ARCH_INIT_CPU_FEATURES. (LIBC_START_MAIN): Call it. * sysdeps/unix/sysv/linux/aarch64/libc-start.c (__libc_start_main): Remove. (ARCH_INIT_CPU_FEATURES): New macro. * sysdeps/x86/libc-start.c (__libc_start_main): Remove. (ARCH_INIT_CPU_FEATURES): New macro. |
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Dennis Wölfing
|
2e0bbbfbf9 |
Add reallocarray function
The reallocarray function is an extension from OpenBSD. It is an integer-overflow-safe replacement for realloc(p, X*Y) and malloc(X*Y) (realloc(NULL, X*Y)). It can therefore help in preventing certain security issues in code. This is an updated version of a patch originally submitted by Rüdiger Sonderfeld in May 2014 [1]. Checked on i686-linux-gnu and x86_64-linux-gnu. [1] <https://sourceware.org/ml/libc-alpha/2014-05/msg00481.html>. 2017-05-30 Dennis Wölfing <denniswoelfing@gmx.de> Rüdiger Sonderfeld <ruediger@c-plusplus.de> * include/stdlib.h (__libc_reallocarray): New declaration. * malloc/Makefile (routines): Add reallocarray. (tests): Add tst-reallocarray.c. * malloc/Versions: Add reallocarray and __libc_reallocarray. * malloc/malloc-internal.h (check_mul_overflow_size_t): New inline function. * malloc/malloc.h (reallocarray): New declaration. * stdlib/stdlib.h (reallocarray): Likewise. * malloc/reallocarray.c: New file. * malloc/tst-reallocarray.c: New test file. * manual/memory.texi: Document reallocarray. * sysdeps/unix/sysv/linux/aarch64/libc.abilist: Add reallocarray. * sysdeps/unix/sysv/linux/alpha/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/arm/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/hppa/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/i386/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/ia64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/microblaze/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/nios2/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libc-le.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/sh/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/tilepro/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist: Likewise. |
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Siddhesh Poyarekar
|
6edbe546d6 |
arm: Fix typo in array count
I just noticed that the array count for the hwcap flags list in ARM is off by 10, i.e. 37 instead of 27. Following patch fixes this. * sysdeps/unix/sysv/linux/arm/dl-procinfo.c (_dl_arm_cap_flags): Fix array subscript. * sysdeps/unix/sysv/linux/arm/dl-procinfo.h (_DL_HWCAP_COUNT): Fix count. |
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Joseph Myers
|
cfed8ece79 |
Fix sys/ucontext.h namespace from signal.h etc. inclusion (bug 21457).
The various sys/ucontext.h headers include <signal.h> and all the headers split out of <bits/sigstack.h>. (Except that the powerpc version does not include <signal.h>.) None of the standard versions defining ucontext.h require or permit such inclusions; rather, they all say that the stack_t and sigset_t types from signal.h are defined. This patch fixes the headers to include just the bits/ headers for those types (and the existing includes of bits/sigcontext.h). Since bits/types/sigset_t.h is now being included instead of bits/types/__sigset_t.h, __sigset_t uses in the headers are replaced by direct use of the public sigset_t type. sysdeps/unix/sysv/linux/x86/bits/sigcontext.h was relying on the prior inclusion of <signal.h> to define types such as __uint32_t, so gets a bits/types.h include added to provide those types. Although one could keep some or all of the includes under a __USE_MISC conditional, that seems unnecessary to me, especially given the lack of a <signal.h> include in the powerpc version meaning that portable programs already cannot rely on such an include. Tested for x86_64 and x86, and with build-many-glibcs.py. As with other such fixes, more namespace issues remain so this does not permit any XFAILs to be removed or bugs to be closed. [BZ #21457] * sysdeps/arm/sys/ucontext.h: Do not include <signal.h>, <bits/sigstack.h>, <bits/types/struct_sigstack.h> or <bits/ss_flags.h>. Include <bits/types/sigset_t.h> instead of <bits/types/__sigset_t.h>. (ucontext_t): Use sigset_t instead of __sigset_t. * sysdeps/generic/sys/ucontext.h: Do not include <signal.h>, <bits/sigstack.h>, <bits/types/struct_sigstack.h> or <bits/ss_flags.h>. Include <bits/types/sigset_t.h> instead of <bits/types/__sigset_t.h>. (ucontext_t): Use sigset_t instead of __sigset_t. * sysdeps/i386/sys/ucontext.h: Do not include <signal.h>, <bits/sigstack.h>, <bits/types/struct_sigstack.h> or <bits/ss_flags.h>. Include <bits/types/sigset_t.h> instead of <bits/types/__sigset_t.h>. (ucontext_t): Use sigset_t instead of __sigset_t. * sysdeps/m68k/sys/ucontext.h: Do not include <signal.h>, <bits/sigstack.h>, <bits/types/struct_sigstack.h> or <bits/ss_flags.h>. Include <bits/types/sigset_t.h> instead of <bits/types/__sigset_t.h>. (ucontext_t): Use sigset_t instead of __sigset_t. * sysdeps/mips/sys/ucontext.h: Do not include <signal.h>, <bits/sigstack.h>, <bits/types/struct_sigstack.h> or <bits/ss_flags.h>. Include <bits/types/sigset_t.h> instead of <bits/types/__sigset_t.h>. (ucontext_t): Use sigset_t instead of __sigset_t. * sysdeps/unix/sysv/linux/aarch64/sys/ucontext.h: Do not include <signal.h>, <bits/sigstack.h>, <bits/types/struct_sigstack.h> or <bits/ss_flags.h>. Include <bits/types/sigset_t.h> instead of <bits/types/__sigset_t.h>. (ucontext_t): Use sigset_t instead of __sigset_t. * sysdeps/unix/sysv/linux/alpha/sys/ucontext.h: Do not include <signal.h>, <bits/sigstack.h>, <bits/types/struct_sigstack.h> or <bits/ss_flags.h>. Include <bits/types/sigset_t.h> instead of <bits/types/__sigset_t.h>. (ucontext_t): Use sigset_t instead of __sigset_t. * sysdeps/unix/sysv/linux/arm/sys/ucontext.h: Do not include <signal.h>, <bits/sigstack.h>, <bits/types/struct_sigstack.h> or <bits/ss_flags.h>. Include <bits/types/sigset_t.h> instead of <bits/types/__sigset_t.h>. (ucontext_t): Use sigset_t instead of __sigset_t. * sysdeps/unix/sysv/linux/hppa/sys/ucontext.h: Do not include <signal.h>, <bits/sigstack.h>, <bits/types/struct_sigstack.h> or <bits/ss_flags.h>. Include <bits/types/sigset_t.h> instead of <bits/types/__sigset_t.h>. (ucontext_t): Use sigset_t instead of __sigset_t. * sysdeps/unix/sysv/linux/ia64/sys/ucontext.h: Do not include <signal.h>, <bits/sigstack.h>, <bits/types/struct_sigstack.h> or <bits/ss_flags.h>. Include <bits/types/sigset_t.h>. * sysdeps/unix/sysv/linux/m68k/sys/ucontext.h: Do not include <signal.h>, <bits/sigstack.h>, <bits/types/struct_sigstack.h> or <bits/ss_flags.h>. Include <bits/types/sigset_t.h> instead of <bits/types/__sigset_t.h>. (ucontext_t): Use sigset_t instead of __sigset_t. * sysdeps/unix/sysv/linux/mips/sys/ucontext.h: Do not include <signal.h>, <bits/sigstack.h>, <bits/types/struct_sigstack.h> or <bits/ss_flags.h>. Include <bits/types/sigset_t.h> instead of <bits/types/__sigset_t.h>. (ucontext_t): Use sigset_t instead of __sigset_t. * sysdeps/unix/sysv/linux/nios2/sys/ucontext.h: Do not include <signal.h>, <bits/sigstack.h>, <bits/types/struct_sigstack.h> or <bits/ss_flags.h>. Include <bits/types/sigset_t.h> instead of <bits/types/__sigset_t.h>. (ucontext_t): Use sigset_t instead of __sigset_t. * sysdeps/unix/sysv/linux/powerpc/sys/ucontext.h: Do not include <bits/sigstack.h>, <bits/types/struct_sigstack.h> or <bits/ss_flags.h>. * sysdeps/unix/sysv/linux/s390/sys/ucontext.h: Do not include <signal.h>, <bits/sigstack.h>, <bits/types/struct_sigstack.h> or <bits/ss_flags.h>. Include <bits/types/sigset_t.h> instead of <bits/types/__sigset_t.h>. (ucontext_t): Use sigset_t instead of __sigset_t. * sysdeps/unix/sysv/linux/sh/sys/ucontext.h: Do not include <signal.h>, <bits/sigstack.h>, <bits/types/struct_sigstack.h> or <bits/ss_flags.h>. Include <bits/types/sigset_t.h> instead of <bits/types/__sigset_t.h>. (ucontext_t): Use sigset_t instead of __sigset_t. * sysdeps/unix/sysv/linux/sparc/sys/ucontext.h: Do not include <signal.h>, <bits/sigstack.h>, <bits/types/struct_sigstack.h> or <bits/ss_flags.h>. Include <bits/types/sigset_t.h> instead of <bits/types/__sigset_t.h>. (ucontext_t): Use sigset_t instead of __sigset_t. * sysdeps/unix/sysv/linux/tile/sys/ucontext.h: Do not include <signal.h>, <bits/sigstack.h>, <bits/types/struct_sigstack.h> or <bits/ss_flags.h>. Include <bits/types/sigset_t.h> instead of <bits/types/__sigset_t.h>. (ucontext_t): Use sigset_t instead of __sigset_t. * sysdeps/unix/sysv/linux/x86/bits/sigcontext.h: Include <bits/types.h>. * sysdeps/unix/sysv/linux/x86/sys/ucontext.h: Do not include <signal.h>, <bits/sigstack.h>, <bits/types/struct_sigstack.h> or <bits/ss_flags.h>. Include <bits/types/sigset_t.h> instead of <bits/types/__sigset_t.h>. (ucontext_t): Use sigset_t instead of __sigset_t. |
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Zack Weinberg
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231a59ce2c |
Fix a bug in 'Remove __need macros from signal.h' (a992f506)
siginfo-arch.h is included in two different places, so the default definitions of the macros that it might or might not define need to be done conditionally afterward, not unconditionally beforehand. * sysdeps/unix/sysv/linux/bits/siginfo-consts.h (__SI_ASYNCIO_AFTER_SIGIO): Define default after including bits/siginfo-arch.h, only if not already defined. * sysdeps/unix/sysv/linux/bits/types/siginfo_t.h (__SI_ALIGNMENT, __SI_BAND_TYPE, __SI_CLOCK_T) (__SI_ERRNO_THEN_CODE, __SI_HAVE_SIGSYS, __SI_SEGFAULT_ADDL): Likewise. * sysdeps/unix/sysv/linux/ia64/bits/siginfo-arch.h * sysdeps/unix/sysv/linux/mips/bits/siginfo-arch.h * sysdeps/unix/sysv/linux/sparc/bits/siginfo-arch.h * sysdeps/unix/sysv/linux/tile/bits/siginfo-arch.h * sysdeps/unix/sysv/linux/x86/bits/siginfo-arch.h: Unconditionally define __SI_* macros. |
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Zack Weinberg
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a992f506ff |
Remove __need macros from signal.h.
The types affected are __sig_atomic_t, sig_atomic_t, __sigset_t, sigset_t, sigval_t, sigevent_t, and siginfo_t. __sig_atomic_t is a scalar, so it's now directly available from bits/types.h. The others get bits/types/ headers. Side effects include: There have been small changes to which non-signal headers expose which subset of the signal-related types. A couple of architectures' nested siginfo_t fields had to be renamed to prevent undesired macro expansion. Internal code that wants to manipulate signal masks must now include <sigsetops.h> (which is not installed) and should be aware that __sigaddset, __sigandset, __sigdelset, __sigemptyset, and __sigorset no longer return a value (unlike the public API). Relatedly, the public signal.h no longer declares any of those functions. The obsolete sigmask() macro no longer has a system-specific definition -- in the cases where it matters, it didn't work anyway. New Linux architectures should create bits/siginfo-arch.h and/or bits/siginfo-consts-arch.h to customize their siginfo_t, rather than duplicating everything in bits/siginfo.h (which no longer exists). Add new __SI_* macros if necessary. Ports to other operating systems are strongly encouraged to generalize this scheme further. * bits/sigevent-consts.h * bits/siginfo-consts.h * bits/types/__sigset_t.h * bits/types/sigevent_t.h * bits/types/siginfo_t.h * sysdeps/unix/sysv/linux/bits/sigevent-consts.h * sysdeps/unix/sysv/linux/bits/siginfo-consts.h * sysdeps/unix/sysv/linux/bits/types/__sigset_t.h * sysdeps/unix/sysv/linux/bits/types/sigevent_t.h * sysdeps/unix/sysv/linux/bits/types/siginfo_t.h: New system-dependent bits headers. * sysdeps/unix/sysv/linux/bits/siginfo-arch.h * sysdeps/unix/sysv/linux/bits/siginfo-consts-arch.h * sysdeps/unix/sysv/linux/ia64/bits/siginfo-arch.h * sysdeps/unix/sysv/linux/ia64/bits/siginfo-consts-arch.h * sysdeps/unix/sysv/linux/mips/bits/siginfo-arch.h * sysdeps/unix/sysv/linux/sparc/bits/siginfo-arch.h * sysdeps/unix/sysv/linux/tile/bits/siginfo-arch.h * sysdeps/unix/sysv/linux/tile/bits/siginfo-consts-arch.h * sysdeps/unix/sysv/linux/x86/bits/siginfo-arch.h: New Linux-only system-dependent bits headers. * signal/bits/types/sig_atomic_t.h * signal/bits/types/sigset_t.h * signal/bits/types/sigval_t.h: New non-system-dependent bits headers. * sysdeps/generic/sigsetops.h * sysdeps/unix/sysv/linux/sigsetops.h: New internal headers. * include/bits/types/sig_atomic_t.h * include/bits/types/sigset_t.h * include/bits/types/sigval_t.h: New wrappers. * signal/sigsetops.h * bits/siginfo.h * bits/sigset.h * sysdeps/unix/sysv/linux/bits/siginfo.h * sysdeps/unix/sysv/linux/bits/sigset.h * sysdeps/unix/sysv/linux/ia64/bits/siginfo.h * sysdeps/unix/sysv/linux/mips/bits/siginfo.h * sysdeps/unix/sysv/linux/s390/bits/siginfo.h * sysdeps/unix/sysv/linux/sparc/bits/siginfo.h * sysdeps/unix/sysv/linux/tile/bits/siginfo.h * sysdeps/unix/sysv/linux/x86/bits/siginfo.h: Deleted. * signal/Makefile, sysdeps/unix/sysv/linux/Makefile: Update lists of installed headers. * posix/bits/types.h: Define __sig_atomic_t here. * signal/signal.h: Use the new bits headers; no need to handle __need_sig_atomic_t nor __need_sigset_t. Don't use __sigmask to define sigmask. * include/signal.h: No need to handle __need_sig_atomic_t nor __need_sigset_t. Don't define __sigemptyset. * io/sys/poll.h, setjmp/setjmp.h * sysdeps/arm/sys/ucontext.h, sysdeps/generic/sys/ucontext.h * sysdeps/i386/sys/ucontext.h, sysdeps/m68k/sys/ucontext.h * sysdeps/mach/hurd/i386/bits/sigcontext.h * sysdeps/mips/sys/ucontext.h, sysdeps/powerpc/novmxsetjmp.h * sysdeps/pthread/bits/sigthread.h * sysdeps/unix/sysv/linux/hppa/sys/ucontext.h * sysdeps/unix/sysv/linux/m68k/sys/ucontext.h * sysdeps/unix/sysv/linux/mips/sys/ucontext.h * sysdeps/unix/sysv/linux/nios2/sys/ucontext.h * sysdeps/unix/sysv/linux/powerpc/sys/ucontext.h * sysdeps/unix/sysv/linux/s390/sys/ucontext.h * sysdeps/unix/sysv/linux/sh/sys/ucontext.h * sysdeps/unix/sysv/linux/sparc/sys/ucontext.h * sysdeps/unix/sysv/linux/tile/sys/ucontext.h * sysdeps/unix/sysv/linux/x86/sys/ucontext.h: Use bits/types/__sigset_t.h. * misc/sys/select.h, posix/spawn.h * sysdeps/unix/sysv/linux/powerpc/sys/ucontext.h * sysdeps/unix/sysv/linux/sys/epoll.h * sysdeps/unix/sysv/linux/sys/signalfd.h: Use bits/types/sigset_t.h. * resolv/netdb.h, rt/mqueue.h: Use bits/types/sigevent_t.h. * rt/aio.h: Use bits/types/sigevent_t.h and bits/sigevent-consts.h. * socket/sys/socket.h: Don't include bits/sigset.h. * login/utmp_file.c, shadow/lckpwdf.c, signal/sigandset.c * signal/sigisempty.c, stdlib/abort.c, sysdeps/posix/profil.c * sysdeps/posix/sigignore.c, sysdeps/posix/sigintr.c * sysdeps/posix/signal.c, sysdeps/posix/sigset.c * sysdeps/posix/sprofil.c, sysdeps/posix/sysv_signal.c * sysdeps/unix/sysv/linux/nptl-signals.h: Include sigsetops.h. * signal/sigaddset.c, signal/sigandset.c, signal/sigdelset.c * signal/sigorset.c, stdlib/abort.c, sysdeps/posix/sigignore.c * sysdeps/posix/signal.c, sysdeps/posix/sigset.c: __sigaddset, __sigandset, __sigdelset, __sigemptyset, __sigorset now return no value. * signal/sigaddset.c, signal/sigdelset.c, signal/sigismem.c Include <errno.h>, <signal.h>, and <sigsetops.h> instead of "sigsetops.h". * signal/sigsetops.c: Explicitly define __sigismember, __sigaddset, and __sigdelset as compatibility symbols. * signal/Versions: Correct commentary on __sigpause, __sigaddset, __sigdelset, __sigismember. * inet/rcmd.c: Include sigsetops.h. Convert old code using __sigblock/__sigsetmask to use __sigprocmask and friends. |
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Joseph Myers
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0bcec5321f |
Split up bits/sigstack.h.
bits/sigstack.h contains four things: the legacy struct sigstack type, the preferred stack_t type, the SS_* enum values and macros for signal stack sizes. These vary in different ways between glibc configurations; in particular, the stack sizes vary much more than any of the other pieces. Furthermore, these pieces have different standard namespace rules for when they should be visible (not currently visible in conform/ results both because the relevant tests are XFAILed for sys/ucontext.h namespace issues, and because some of the expectations are incorrect in the same way as the headers, e.g. neither expectations nor headers reflect that current POSIX no longer has either the sigstack function or the sigstack structure). To reduce duplication of identical definitions, and facilitate namespace fixes without requiring the same feature test macro conditions to be repeated in many versions of the same header, this patch splits bits/sigstack.h up into four headers. It keeps the stack size macros, while new bits/types/struct_sigstack.h, bits/types/stack_t.h and bits/ss_flags.h are added for the other pieces. bits/types/struct_sigstack.h is the same everywhere, bits/types/stack_t.h has three variants different in the order of the structure elements (generic = MIPS Linux, and other Linux), and bits/ss_flags.h has generic and Linux variants. This patch includes the new headers everywhere that included <bits/sigstack.h>, so should cause no difference to what any public header defines. Subsequent namespace fixes would then remove or condition some of those includes. There should be no conflicts with Zack's changes to signal.h types, beyond the trivial conflict of both making additions to signal/Makefile's headers list; the two patches affect disjoint sets of types and other definitions. Tested for x86_64 and x86, and with build-many-glibcs.py. * bits/ss_flags.h: New file. * bits/types/stack_t.h: Likewise. * include/bits/types/struct_sigstack.h: Likewise. * signal/bits/types/struct_sigstack.h: Likewise. * sysdeps/unix/sysv/linux/bits/ss_flags.h: Likewise. * sysdeps/unix/sysv/linux/bits/types/stack_t.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/types/stack_t.h: Likewise. * signal/Makefile (headers): Add bits/types/struct_sigstack.h, bits/types/stack_t.h and bits/ss_flags.h. * signal/signal.h [__USE_XOPEN_EXTENDED || __USE_XOPEN2K8]: Include <bits/types/struct_sigstack.h>, <bits/types/stack_t.h> and <bits/ss_flags.h>. * bits/sigstack.h (struct sigstack): Remove. (stack_t): Likewise. (SS_ONSTACK): Likewise. (SS_DISABLE): Likewise. * sysdeps/unix/sysv/linux/aarch64/bits/sigstack.h (struct sigstack): Likewise. (stack_t): Likewise. (SS_ONSTACK): Likewise. (SS_DISABLE): Likewise. * sysdeps/unix/sysv/linux/alpha/bits/sigstack.h (struct sigstack): Likewise. (stack_t): Likewise. (SS_ONSTACK): Likewise. (SS_DISABLE): Likewise. * sysdeps/unix/sysv/linux/bits/sigstack.h (struct sigstack): Likewise. (stack_t): Likewise. (SS_ONSTACK): Likewise. (SS_DISABLE): Likewise. * sysdeps/unix/sysv/linux/mips/bits/sigstack.h: Likewise. * sysdeps/unix/sysv/linux/ia64/bits/sigstack.h (struct sigstack): Likewise. (stack_t): Likewise. (SS_ONSTACK): Likewise. (SS_DISABLE): Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/sigstack.h (struct sigstack): Likewise. (stack_t): Likewise. (SS_ONSTACK): Likewise. (SS_DISABLE): Likewise. * sysdeps/unix/sysv/linux/sparc/bits/sigstack.h (struct sigstack): Likewise. (stack_t): Likewise. (SS_ONSTACK): Likewise. (SS_DISABLE): Likewise. * sysdeps/arm/sys/ucontext.h: Include <bits/types/struct_sigstack.h>, <bits/types/stack_t.h> and <bits/ss_flags.h>. * sysdeps/generic/sys/ucontext.h: Likewise. * sysdeps/i386/sys/ucontext.h: Likewise. * sysdeps/m68k/sys/ucontext.h: Likewise. * sysdeps/mips/sys/ucontext.h: Likewise. * sysdeps/unix/sysv/linux/aarch64/sys/ucontext.h: Likewise. * sysdeps/unix/sysv/linux/alpha/sys/ucontext.h: Likewise. * sysdeps/unix/sysv/linux/arm/sys/ucontext.h: Likewise. * sysdeps/unix/sysv/linux/hppa/sys/ucontext.h: Likewise. * sysdeps/unix/sysv/linux/ia64/bits/sigcontext.h: Likewise. * sysdeps/unix/sysv/linux/ia64/sys/ucontext.h: Likewise. * sysdeps/unix/sysv/linux/m68k/sys/ucontext.h: Likewise. * sysdeps/unix/sysv/linux/mips/sys/ucontext.h: Likewise. * sysdeps/unix/sysv/linux/nios2/sys/ucontext.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/sys/ucontext.h: Likewise. * sysdeps/unix/sysv/linux/s390/sys/ucontext.h: Likewise. * sysdeps/unix/sysv/linux/sh/sys/ucontext.h: Likewise. * sysdeps/unix/sysv/linux/sparc/sys/ucontext.h: Likewise. * sysdeps/unix/sysv/linux/tile/sys/ucontext.h: Likewise. * sysdeps/unix/sysv/linux/x86/sys/ucontext.h: Likewise. |
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Adhemerval Zanella
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1d71a63153 |
Fix makefile rules for vmsplice, splice, and open_by_handle_at
Commits |
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Adhemerval Zanella
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332e01c627 |
posix: Consolidate Linux mq_timedsend syscall
This patch consolidates the mq_timedsend Linux syscall generation on sysdeps/unix/sysv/linux/mq_timedsend.c. It basically removes it from architecture auto-generation list. Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32, arch64-linux-gnu, arm-linux-gnueabihf, powerpc64le-linux-gnu, sparc64-linux-gnu, and sparcv9-linux-gnu. * rt/Makefile (CFLAGS-mq_timedsend.c): New flag. * sysdeps/unix/sysv/linux/mq_timedsend.c: New file. * sysdeps/unix/sysv/linux/syscalls.list (mq_timedsend): Remove from auto-generation list. |
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Adhemerval Zanella
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a5fdd30597 |
posix: Consolidate Linux mq_timedreceive syscall
This patch consolidates the mq_timedreceive Linux syscall generation on sysdeps/unix/sysv/linux/mq_timedreceive.c. It basically removes it from architecture auto-generation list. Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32, arch64-linux-gnu, arm-linux-gnueabihf, powerpc64le-linux-gnu, sparc64-linux-gnu, and sparcv9-linux-gnu. * rt/Makefile (CFLAGS-mq_timedreceive.c): New flag. * sysdeps/unix/sysv/linux/mq_timedreceive.c: New file. * sysdeps/unix/sysv/linux/syscalls.list (mq_timedreceive): Remove from auto-generation list. |
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Adhemerval Zanella
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a5a34d2eaf |
linux: Consolidate Linux open_by_handle_at syscall
This patch consolidates the open_by_handle_at Linux syscall generation on sysdeps/unix/sysv/linux/open_by_handle_at.c. It basically removes it from architectures auto-generation list. Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32, arch64-linux-gnu, arm-linux-gnueabihf, powerpc64le-linux-gnu, sparc64-linux-gnu, and sparcv9-linux-gnu. * sysdeps/unix/sysv/linux/Makefile (sysdep_routines): Add open_by_handle_at. (CFLAGS-open_by_handle_at.c): New flag. * sysdeps/unix/sysv/linux/open_by_handle_at.c: New file. * sysdeps/unix/sysv/linux/syscalls.list (open_by_handle_at): New file. * misc/Makefile (CFLAGS-open_by_handle_at.c): New rule. |
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Adhemerval Zanella
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afbbc18f9e |
linux: Consolidate Linux splice syscall
This patch consolidates the splice Linux syscall generation on sysdeps/unix/sysv/linux/splice.c. It basically removes it from architectures auto-generation list. Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32, arch64-linux-gnu, arm-linux-gnueabihf, powerpc64le-linux-gnu, sparc64-linux-gnu, and sparcv9-linux-gnu. * sysdeps/unix/sysv/linux/Makefile (sysdep_routines): Add splice. (CFLAGS-splice.c): New flag. * sysdeps/unix/sysv/linux/splice.c: New file. * sysdeps/unix/sysv/linux/syscalls.list (splice): Remove from auto-generation syscall list. * misc/Makefile (CFLAGS-splice.c): New rule. |
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Adhemerval Zanella
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ecade1cb0b |
linux: Consolidate Linux vmsplice syscall
This patch consolidates the vmsplice Linux syscall generation on sysdeps/unix/sysv/linux/vmsplice.c. It basically removes it from architectures auto-generation list. Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32, arch64-linux-gnu, arm-linux-gnueabihf, powerpc64le-linux-gnu, sparc64-linux-gnu, and sparcv9-linux-gnu. * sysdeps/unix/sysv/linux/Makefile (CFLAGS-vmsplice.c): New flag. * sysdeps/unix/sysv/linux/syscalls.list (vmsplice): Remove from auto-generation syscall list. * sysdeps/unix/sysv/linux/vmsplice.c: New file. * misc/Makefile (CFLAGS-vmsplice.c): New rule. |
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Adhemerval Zanella
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fdbb0d98ba |
posix: Consolidate Linux fsync syscall
This patch consolidates the fsync Linux syscall generation on sysdeps/unix/sysv/linux/fsync.c. It basically removes it from architectures auto-generation list. For arm it also removes the __errno_location call since fsync is not called with SYSCALL_CANCEL with call arch-specific INLINE_SYSCALL macro which in turn will call __set_errno macro (and setting errno directly). Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32, arch64-linux-gnu, arm-linux-gnueabihf, powerpc64le-linux-gnu, sparc64-linux-gnu, and sparcv9-linux-gnu. * misc/Makefile (CFLAGS-fsync.c): New flag. * nptl/Makefile (CFLAGS-fsync.c): Likewise. * sysdeps/unix/syscalls.list (fsync): Remove from auto-generation syscall list. * sysdeps/unix/sysv/linux/fsync.c: New file. * sysdeps/unix/sysv/linux/arm/localplt.data [libpthread.so] (__errno_location): Remove. |
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Adhemerval Zanella
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51209cbf51 |
posix: Consolidate Linux fdatasync syscall
This patch consolidates the fdatasync Linux syscall generation on sysdeps/unix/sysv/linux/fdatasync.c. It basically removes it from architectures auto-generation list. Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32, arch64-linux-gnu, arm-linux-gnueabihf, powerpc64le-linux-gnu, sparc64-linux-gnu, and sparcv9-linux-gnu. * misc/makefile (CFLAGS-datasync.c): New flag. * nptl/makefile (CFLAGS-datasync.c): Likewise. * sysdeps/unix/sysv/linux/syscalls.list (fdatasync): Remove from auto-generation syscall list. * sysdeps/unix/sysv/linux/fdatasync.c: New file. |
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Adhemerval Zanella
|
3c9399f507 |
posix: Consolidate Linux msync syscall
This patch consolidates the msync Linux syscall generation on sysdeps/unix/sysv/linux/msync.c. It basically removes it from architectures auto-generation list. Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32, arch64-linux-gnu, arm-linux-gnueabihf, powerpc64le-linux-gnu, sparc64-linux-gnu, and sparcv9-linux-gnu. * misc/Makefile (CFLAGS-msync.c): New rule. * nptl/Makefile (CFLAGS-msync.c): Likewise. * sysdeps/unix/syscalls.list: Remove msync from auto-generation list. * sysdeps/unix/sysv/linux/msync.c: New file. |
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Adhemerval Zanella
|
b3b00aa8b0 |
posix: Consolidate Linux sigsuspend implementation
This patch consolidates the sigsuspend Linux syscall generation on sysdeps/unix/sysv/linux/sigsuspend.c. It basically removes the alpha assembly version which call the old sigsusped interface using only the first doubleword from sigset. Current minimum supported kernel on alpha (3.2) enforces rt_sigsuspend on the architecture (__ARCH_WANT_SYS_RT_SIGSUSPEND option on kernel), so it is possible to use the default implementation. Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32, arch64-linux-gnu, arm-linux-gnueabihf, powerpc64le-linux-gnu, sparc64-linux-gnu, and sparcv9-linux-gnu. * sysdeps/unix/sysv/linux/alpha/sigsuspend.S: Remove file. * sysdeps/unix/sysv/linux/sigsuspend.c: Simplify include list. * nptl/Makefile (CFLAGS-sigsuspend.c): New rule. * sysdeps/unix/sysv/linux/sparc/sparc64/Makefile (CFLAGS-sigsuspend.c): Remove rule. |
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Adhemerval Zanella
|
2de15b61e9 |
linux: Consolidate Linux tee implementation
This patch consolidates the tee Linux syscall generation on sysdeps/unix/sysv/linux/tee.c. It basically removes it from architectures auto-generation list. Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32, arch64-linux-gnu, arm-linux-gnueabihf, powerpc64le-linux-gnu, sparc64-linux-gnu, and sparcv9-linux-gnu. * sysdeps/unix/sysv/linux/Makefile (sysdeps_routines): Add tee. (CFLAGS-tee.c): New rule. * sysdeps/unix/sysv/linux/syscalls.list: Remove tee from auto-generated list. * sysdeps/unix/sysv/linux/tee.c: New file. |
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Adhemerval Zanella
|
3d0ad5a8df |
posix: Consolidate Linux nanosleep syscall
This patch consolidates the nanosleep Linux syscall generation on sysdeps/unix/sysv/linux/nanosleep.c. It basically removes it from architectures auto-generation list. Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32, arch64-linux-gnu, arm-linux-gnueabihf, powerpc64le-linux-gnu, sparc64-linux-gnu, and sparcv9-linux-gnu. * nptl/Makefile (CFLAGS-nanosleep.c): New rule. * posix/Makefile (CFLAGS-nanosleep.c): Likewise. * sysdeps/unix/sysv/linux/nanosleep.c: New file. * sysdeps/unix/sysv/linux/syscalls.list: Remove nanosleep from auto-generated list. |
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Adhemerval Zanella
|
ebfdb12bf0 |
posix: Consolidate Linux waitpid syscall
This patch consolidates the waitpid Linux syscall generation on sysdeps/unix/sysv/linux/waitpid.c. It basically removes it from architecture auto-generation list and also remove arch specific implementations. Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32, arch64-linux-gnu, arm-linux-gnueabihf, and powerpc64le-linux-gnu. * sysdeps/unix/sysv/linux/sh/syscalls.list: Remove waitpid from auto-generated list. * sysdeps/unix/sysv/linux/m68k/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/i386/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/sparc/syscalls.list: Remove file. * sysdeps/unix/sysv/linux/tile/waitpid.S: Likewise. * sysdeps/unix/sysv/linux/powerpc/syscalls.list: Likewise. |
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Adhemerval Zanella
|
88499a87ce |
posix: Consolidate Linux pause syscall
This patch consolidates the pause Linux implementation on sysdeps/unix/sysv/linux/pause.c. If defined the pause syscall (__NR_pause) will be used, other ppoll with 0 arguments will be used instead. It has the small advantage of generic pause implementation with uses rt_sigprocmask plus rt_sigsuspend because it requires only one syscall and the pause is done atomically regarding signal handling (for instance, pause may not be interrupted if the signal arrives between the rt_sigprocmask and rt_sigsuspend syscall). Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32, arch64-linux-gnu, arm-linux-gnueabihf, powerpc64le-linux-gnu, sparc64-linux-gnu, and sparcv9-linux-gnu. * sysdeps/unix/sysv/linux/generic/pause.c: Remove file. * sysdeps/unix/sysv/linux/sparc/sparc64/pause.c: Likewise. * sysdeps/unix/sysv/linux/sparc/kernel-features.h [__arch64__] (__NR_pause): Undefine. * sysdeps/unix/sysv/linux/pause.c: New file. * sysdeps/unix/sysv/linux/syscalls.list: Remove pause from auto-generation list. |
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Adhemerval Zanella
|
c79a72aa5c |
posix: Fix and simplify default p{read,write}v implementation
Currently all architectures but microblaze use wire-up syscall for
p{readv,write}v. Microblaze still uses the syscall emulation using
sysdep/posix/p{readv,writev}.c and it was reported in some ocasions
[1] [2] that it might have some issues with some linux specific
usage (mainly with O_DIRECT and the alignment requirement).
Although it is not an issue for virtually all the system, this
patch refactors the sysdeps/posix p{read,write}v syscall to avoid
such issue (by using posix_memalign on the buffer used on
p{read,write} call) and by refactoring it common files to avoid
the need check on defines to correct set the alias and internal
symbols.
Checked on microblaze-linux-gnu check with run-built-tests=no and
by using the sysdeps/posix implementation on x86_64-linux-gnu (just
for sanity test where it shown no regression).
* sysdeps/posix/preadv.c: Use sysdeps/posix/preadv_common.c.
* sysdeps/posix/preadv64.c: Likewise.
* sysdeps/unix/sysv/linux/preadv.c: Likewise.
* sysdeps/unix/sysv/linux/preadv64.c: Likewise.
* sysdeps/posix/pwritev.c: Use sysdeps/posix/pwritev_common.c.
* sysdeps/posix/pwritev64.c: Likewise.
* sysdeps/unix/sysv/linux/pwritev.c: Likewise.
* sysdeps/unix/sysv/linux/pwritev64.c: Likewise.
* sysdeps/posix/preadv_common.c: New file.
* sysdeps/posix/pwritev_common.c: Likewise.
[1] http://www.mail-archive.com/qemu-devel@nongnu.org/msg25282.html
[2] https://bugzilla.redhat.com/show_bug.cgi?id=563103#c8
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Joseph Myers
|
e8f1225ca4 |
Remove __ASSUME_STATFS_F_FLAGS.
Now that 3.2 is the minimum Linux kernel version for glibc, this patch removes __ASSUME_STATFS_F_FLAGS and associated conditional code. Tested for x86_64. * sysdeps/unix/sysv/linux/kernel-features.h (__ASSUME_STATFS_F_FLAGS): Remove macro. * sysdeps/unix/sysv/linux/internal_statvfs.c [!__ASSUME_STATFS_F_FLAGS]: Remove conditional code. |
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Zack Weinberg
|
7c3018f9e4 |
Suppress internal declarations for most of the testsuite.
This patch adds a new build module called 'testsuite'.
IS_IN (testsuite) implies _ISOMAC, as do IS_IN_build and __cplusplus
(which means several ad-hoc tests for __cplusplus can go away).
libc-symbols.h now suppresses almost all of *itself* when _ISOMAC is
defined; in particular, _ISOMAC mode does not get config.h
automatically anymore.
There are still quite a few tests that need to see internal gunk of
one variety or another. For them, we now have 'tests-internal' and
'test-internal-extras'; files in this category will still be compiled
with MODULE_NAME=nonlib, and everything proceeds as it always has.
The bulk of this patch is moving tests from 'tests' to
'tests-internal'. There is also 'tests-static-internal', which has
the same effect on files in 'tests-static', and 'modules-names-tests',
which has the *inverse* effect on files in 'modules-names' (it's
inverted because most of the things in modules-names are *not* tests).
For both of these, the file must appear in *both* the new variable and
the old one.
There is also now a special case for when libc-symbols.h is included
without MODULE_NAME being defined at all. (This happens during the
creation of libc-modules.h, and also when preprocessing Versions
files.) When this happens, IS_IN is set to be always false and
_ISOMAC is *not* defined, which was the status quo, but now it's
explicit.
The remaining changes to C source files in this patch seemed likely to
cause problems in the absence of the main change. They should be
relatively self-explanatory. In a few cases I duplicated a definition
from an internal header rather than move the test to tests-internal;
this was a judgement call each time and I'm happy to change those
however reviewers feel is more appropriate.
* Makerules: New subdir configuration variables 'tests-internal'
and 'test-internal-extras'. Test files in these categories will
still be compiled with MODULE_NAME=nonlib. Test files in the
existing categories (tests, xtests, test-srcs, test-extras) are
now compiled with MODULE_NAME=testsuite.
New subdir configuration variable 'modules-names-tests'. Files
which are in both 'modules-names' and 'modules-names-tests' will
be compiled with MODULE_NAME=testsuite instead of
MODULE_NAME=extramodules.
(gen-as-const-headers): Move to tests-internal.
(do-tests-clean, common-mostlyclean): Support tests-internal.
* Makeconfig (built-modules): Add testsuite.
* Makefile: Change libof-check-installed-headers-c and
libof-check-installed-headers-cxx to 'testsuite'.
* Rules: Likewise. Support tests-internal.
* benchtests/strcoll-inputs/filelist#en_US.UTF-8:
Remove extra-modules.mk.
* config.h.in: Don't check for __OPTIMIZE__ or __FAST_MATH__ here.
* include/libc-symbols.h: Move definitions of _GNU_SOURCE,
PASTE_NAME, PASTE_NAME1, IN_MODULE, IS_IN, and IS_IN_LIB to the
very top of the file and rationalize their order.
If MODULE_NAME is not defined at all, define IS_IN to always be
false, and don't define _ISOMAC.
If any of IS_IN (testsuite), IS_IN_build, or __cplusplus are
true, define _ISOMAC and suppress everything else in this file,
starting with the inclusion of config.h.
Do check for inappropriate definitions of __OPTIMIZE__ and
__FAST_MATH__ here, but only if _ISOMAC is not defined.
Correct some out-of-date commentary.
* include/math.h: If _ISOMAC is defined, undefine NO_LONG_DOUBLE
and _Mlong_double_ before including math.h.
* include/string.h: If _ISOMAC is defined, don't expose
_STRING_ARCH_unaligned. Move a comment to a more appropriate
location.
* include/errno.h, include/stdio.h, include/stdlib.h, include/string.h
* include/time.h, include/unistd.h, include/wchar.h: No need to
check __cplusplus nor use __BEGIN_DECLS/__END_DECLS.
* misc/sys/cdefs.h (__NTHNL): New macro.
* sysdeps/m68k/m680x0/fpu/bits/mathinline.h
(__m81_defun): Use __NTHNL to avoid errors with GCC 6.
* elf/tst-env-setuid-tunables.c: Include config.h with _LIBC
defined, for HAVE_TUNABLES.
* inet/tst-checks-posix.c: No need to define _ISOMAC.
* intl/tst-gettext2.c: Provide own definition of N_.
* math/test-signgam-finite-c99.c: No need to define _ISOMAC.
* math/test-signgam-main.c: No need to define _ISOMAC.
* stdlib/tst-strtod.c: Convert to test-driver. Split locale_test to...
* stdlib/tst-strtod1i.c: ...this new file.
* stdlib/tst-strtod5.c: Convert to test-driver and add copyright notice.
Split tests of __strtod_internal to...
* stdlib/tst-strtod5i.c: ...this new file.
* string/test-string.h: Include stdint.h. Duplicate definition of
inhibit_loop_to_libcall here (from libc-symbols.h).
* string/test-strstr.c: Provide dummy definition of
libc_hidden_builtin_def when including strstr.c.
* sysdeps/ia64/fpu/libm-symbols.h: Suppress entire file in _ISOMAC
mode; no need to test __STRICT_ANSI__ nor __cplusplus as well.
* sysdeps/x86_64/fpu/math-tests-arch.h: Include cpu-features.h.
Don't include init-arch.h.
* sysdeps/x86_64/multiarch/test-multiarch.h: Include cpu-features.h.
Don't include init-arch.h.
* elf/Makefile: Move tst-ptrguard1-static, tst-stackguard1-static,
tst-tls1-static, tst-tls2-static, tst-tls3-static, loadtest,
unload, unload2, circleload1, neededtest, neededtest2,
neededtest3, neededtest4, tst-tls1, tst-tls2, tst-tls3,
tst-tls6, tst-tls7, tst-tls8, tst-dlmopen2, tst-ptrguard1,
tst-stackguard1, tst-_dl_addr_inside_object, and all of the
ifunc tests to tests-internal.
Don't add $(modules-names) to test-extras.
* inet/Makefile: Move tst-inet6_scopeid_pton to tests-internal.
Add tst-deadline to tests-static-internal.
* malloc/Makefile: Move tst-mallocstate and tst-scratch_buffer to
tests-internal.
* misc/Makefile: Move tst-atomic and tst-atomic-long to tests-internal.
* nptl/Makefile: Move tst-typesizes, tst-rwlock19, tst-sem11,
tst-sem12, tst-sem13, tst-barrier5, tst-signal7, tst-tls3,
tst-tls3-malloc, tst-tls5, tst-stackguard1, tst-sem11-static,
tst-sem12-static, and tst-stackguard1-static to tests-internal.
Link tests-internal with libpthread also.
Don't add $(modules-names) to test-extras.
* nss/Makefile: Move tst-field to tests-internal.
* posix/Makefile: Move bug-regex5, bug-regex20, bug-regex33,
tst-rfc3484, tst-rfc3484-2, and tst-rfc3484-3 to tests-internal.
* stdlib/Makefile: Move tst-strtod1i, tst-strtod3, tst-strtod4,
tst-strtod5i, tst-tls-atexit, and tst-tls-atexit-nodelete to
tests-internal.
* sunrpc/Makefile: Move tst-svc_register to tests-internal.
* sysdeps/powerpc/Makefile: Move test-get_hwcap and
test-get_hwcap-static to tests-internal.
* sysdeps/unix/sysv/linux/Makefile: Move tst-setgetname to
tests-internal.
* sysdeps/x86_64/fpu/Makefile: Add all libmvec test modules to
modules-names-tests.
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Adhemerval Zanella
|
488e08b600 |
Consolidate Linux writev implementation
This patch consolidates the writev Linux syscall implementation on sysdeps/unix/sysv/linux/writev.c. Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32, arch64-linux-gnu, arm-linux-gnueabihf, and powerpc64le-linux-gnu. * sysdeps/unix/sysv/linux/writev.c: New file. |
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Adhemerval Zanella
|
679e979bf3 |
Consolidate Linux readv implementation
This patch consolidates the readv Linux syscall implementation on sysdeps/unix/sysv/linux/readv.c. Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32, arch64-linux-gnu, arm-linux-gnueabihf, and powerpc64le-linux-gnu. * sysdeps/unix/sysv/linux/readv.c: New file. |
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Adhemerval Zanella
|
dfaaee33ba |
Consolidate Linux write syscall
This patch consolidates the write Linux syscall implementation on sysdeps/unix/sysv/linux/write.c. Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32, arch64-linux-gnu, arm-linux-gnueabihf, and powerpc64le-linux-gnu. * include/unistd.h (write): Add hidden proto. * io/Makefile (CFLAGS-write.c): New rule. * nptl/Makefile (CFLAGS-write.c): Likewise. * sysdeps/unix/sysv/linux/write.c: New file. |
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Adhemerval Zanella
|
f6a191a6ee |
Consolidate Linux read syscall
This patch consolidates the read Linux syscall implementation on
sysdeps/unix/sysv/linux/read.c. This leads to a different frame
pointer creation on some architectures:
* It fixes BZ#21428 on aarch64, since now the returned address
for the read syscall can be correctly found out by
backtrace_symbols.
* It makes tst-backtrace{5,6} fails on powerpc due an issue on
its custom backtrace implementation. It is fixed on subsequent
patch from this set.
Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32,
arch64-linux-gnu, arm-linux-gnueabihf, and powerpc64le-linux-gnu.
[BZ #21428]
* include/unistd.h (read): Add hidden proto.
* io/Makefile (CFLAGS-read.c): New rule.
* nptl/Makefile (CFLAGS-read.c): New rule.
* sysdeps/unix/sysv/linux/read.c: New file.
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Adhemerval Zanella
|
cab6e5af9d |
Consolidate Linux creat implementation
This patch consolidates the creat Linux syscall implementation on
sysdeps/unix/sysv/linux/creat{64}.c. The changes are:
1. Remove creat{64} from auto-generation syscalls.list.
2. Add a new creat{64}.c implementation. For architectures that
define __OFF_T_MATCHES_OFF64_T the default creat64 will create
alias to required creat symbols.
3. Use __NR_creat where possible, otherwise use internal open{64}
call with expected flags.
Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32,
arch64-linux-gnu, arm-linux-gnueabihf, and powerpc64le-linux-gnu.
* io/Makefile (CFLAGS-creat.c): New rule.
(CFLAGS-creat64.c): Likewise.
* sysdeps/unix/sysv/linux/alpha/creat.c: Remove file.
* sysdeps/unix/sysv/linux/generic/creat.c: Likewise.
* sysdeps/unix/sysv/linux/wordsize-64/creat64.c: Likewise.
* sysdeps/unix/sysv/linux/creat.c: New file.
* sysdeps/unix/sysv/linux/creat64.c: Likewise.
* sysdeps/unix/sysv/linux/syscalls.list: Remove create from
auto-generated list.
* sysdeps/unix/sysv/linux/wordsize-64/syscalls.list: Likewise.
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Adhemerval Zanella
|
b41152d716 |
Consolidate Linux open implementation
This patch consolidates the open Linux syscall implementation on
sysdeps/unix/sysv/linux/open{64}.c. The changes are:
1. Remove open{64} from auto-generation syscalls.list.
2. Add a new open{64}.c implementation. For architectures that
define __OFF_T_MATCHES_OFF64_T the default open64 will create
alias to required open symbols.
3. Use __NR_openat as default syscall for open{64}.
Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32,
arch64-linux-gnu, arm-linux-gnueabihf, and powerpc64le-linux-gnu.
* sysdeps/unix/sysv/linux/generic/open.c: Remove file.
* sysdeps/unix/sysv/linux/generic/open64.c: Likewise.
* sysdeps/unix/sysv/linux/wordsize-64/open64.c: Likewise.
* sysdeps/unix/sysv/linux/open.c: New file.
* sysdeps/unix/sysv/linux/open64.c (__libc_open64): Use O_LARGEFILE
only for __OFF_T_MATCHES_OFF64_T and add alias to open if the case.
* sysdeps/unix/sysv/linux/wordsize-64/syscalls.list: Remove open
from auto-generated list.
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Adhemerval Zanella
|
0f01acb340 |
Consolidate Linux close syscall generation
This patch consolidates the close Linux syscall generation on sysdeps/unix/sysv/linux/close.c. Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32, arch64-linux-gnu, arm-linux-gnueabihf, and powerpc64le-linux-gnu. * nptl/Makefile (CFLAGS-close.c): New flag. * sysdeps/unix/sysv/linux/close.c: New file. |
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Joseph Myers
|
5df4854ed2 |
Condition some sys/ucontext.h contents on __USE_MISC (bug 21457).
Continuing the fixes for namespace issues arising from sys/ucontext.h, this patch conditions various definitions, that are not needed for defining mcontext_t / ucontext_t, on __USE_MISC, so they do not appear in strict POSIX modes. This patch is non-exhaustive; that is, it only conditions straightforward cases and there may be more such definitions that can be conditioned for these and other architectures, to be dealt with later in separate patches. Also, using __USE_MISC is the minimum change for these definitions where they conflict with POSIX; some headers already have __USE_GNU conditionals on similar definitions of names for registers. The patch specifically does not do anything with definitions in bits/sigcontext.h, and nor does it condition any inclusions of bits/sigcontext.h even where in fact that is not needed on some architectures for the definitions of mcontext_t / ucontext_t. As other namespace issues in these headers remain, this patch does not fix bug 21457, nor allow any XFAILs to be removed. Tested with build-many-glibcs.py. [BZ #21457] * sysdeps/arm/sys/ucontext.h (R0): Condition on [__USE_MISC]. (R1): Likewise. (R2): Likewise. (R3): Likewise. (R4): Likewise. (R5): Likewise. (R6): Likewise. (R7): Likewise. (R8): Likewise. (R9): Likewise. (R10): Likewise. (R11): Likewise. (R12): Likewise. (R13): Likewise. (R14): Likewise. (R15): Likewise. * sysdeps/i386/sys/ucontext.h (REG_GS): Likewise. (REG_FS): Likewise. (REG_ES): Likewise. (REG_DS): Likewise. (REG_EDI): Likewise. (REG_ESI): Likewise. (REG_EBP): Likewise. (REG_ESP): Likewise. (REG_EBX): Likewise. (REG_EDX): Likewise. (REG_ECX): Likewise. (REG_EAX): Likewise. (REG_TRAPNO): Likewise. (REG_ERR): Likewise. (REG_EIP): Likewise. (REG_CS): Likewise. (REG_EFL): Likewise. (REG_UESP): Likewise. (REG_SS): Likewise. * sysdeps/m68k/sys/ucontext.h (R_D0): Likewise. (R_D1): Likewise. (R_D2): Likewise. (R_D3): Likewise. (R_D4): Likewise. (R_D5): Likewise. (R_D6): Likewise. (R_D7): Likewise. (R_A0): Likewise. (R_A1): Likewise. (R_A2): Likewise. (R_A3): Likewise. (R_A4): Likewise. (R_A5): Likewise. (R_A6): Likewise. (R_A7): Likewise. (R_SP): Likewise. (R_PC): Likewise. (R_PS): Likewise. (fpregset_t): Likewise. (MCONTEXT_VERSION): Likewise. * sysdeps/mips/sys/ucontext.h (CTX_R0): Likewise. (CTX_AT): Likewise. (CTX_V0): Likewise. (CTX_V1): Likewise. (CTX_A0): Likewise. (CTX_A1): Likewise. (CTX_A2): Likewise. (CTX_A3): Likewise. (CTX_T0): Likewise. (CTX_T1): Likewise. (CTX_T2): Likewise. (CTX_T3): Likewise. (CTX_T4): Likewise. (CTX_T5): Likewise. (CTX_T6): Likewise. (CTX_T7): Likewise. (CTX_S0): Likewise. (CTX_S1): Likewise. (CTX_S2): Likewise. (CTX_S3): Likewise. (CTX_S4): Likewise. (CTX_S5): Likewise. (CTX_S6): Likewise. (CTX_S7): Likewise. (CTX_T8): Likewise. (CTX_T9): Likewise. (CTX_K0): Likewise. (CTX_K1): Likewise. (CTX_GP): Likewise. (CTX_SP): Likewise. (CTX_S8): Likewise. (CTX_RA): Likewise. (CTX_MDLO): Likewise. (CTX_MDHI): Likewise. (CTX_CAUSE): Likewise. (CTX_EPC): Likewise. * sysdeps/unix/sysv/linux/aarch64/sys/ucontext.h: Condition inclusion of <sys/procfs.h> on [__USE_MISC]. (greg_t): Condition on [__USE_MISC]. (gregset_t): Likewise. (fpregset_t): Likewise. * sysdeps/unix/sysv/linux/arm/sys/ucontext.h (greg_t): Likewise. (NGREG): Likewise. (gregset_t): Likewise. (REG_R0): Likewise. (REG_R1): Likewise. (REG_R2): Likewise. (REG_R3): Likewise. (REG_R4): Likewise. (REG_R5): Likewise. (REG_R6): Likewise. (REG_R7): Likewise. (REG_R8): Likewise. (REG_R9): Likewise. (REG_R10): Likewise. (REG_R11): Likewise. (REG_R12): Likewise. (REG_R13): Likewise. (REG_R14): Likewise. (REG_R15): Likewise. (struct _libc_fpstate): Likewise. (fpregset_t): Likewise. * sysdeps/unix/sysv/linux/hppa/sys/ucontext.h (NGREG): Likewise. (NFPREG): Likewise. (gregset_t): Likewise. (fpregset_t): Likewise. * sysdeps/unix/sysv/linux/m68k/sys/ucontext.h (R_D0): Likewise. (R_D1): Likewise. (R_D2): Likewise. (R_D3): Likewise. (R_D4): Likewise. (R_D5): Likewise. (R_D6): Likewise. (R_D7): Likewise. (R_A0): Likewise. (R_A1): Likewise. (R_A2): Likewise. (R_A3): Likewise. (R_A4): Likewise. (R_A5): Likewise. (R_A6): Likewise. (R_A7): Likewise. (R_SP): Likewise. (R_PC): Likewise. (R_PS): Likewise. (fpregset_t): Likewise. (MCONTEXT_VERSION): Likewise. * sysdeps/unix/sysv/linux/nios2/sys/ucontext.h (MCONTEXT_VERSION): Likewise. * sysdeps/unix/sysv/linux/sh/sys/ucontext.h (REG_R0): Likewise. (REG_R1): Likewise. (REG_R2): Likewise. (REG_R3): Likewise. (REG_R4): Likewise. (REG_R5): Likewise. (REG_R6): Likewise. (REG_R7): Likewise. (REG_R8): Likewise. (REG_R9): Likewise. (REG_R10): Likewise. (REG_R11): Likewise. (REG_R12): Likewise. (REG_R13): Likewise. (REG_R14): Likewise. (REG_R15): Likewise. * sysdeps/unix/sysv/linux/tile/sys/ucontext.h: Condition inclusion of <arch/abi.h> on [__USE_MISC]. (greg_t): Condition on [__USE_MISC]. (NGREG): Likewise. (gregset_t): Likewise. |
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Joseph Myers
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d08a482bc2 |
Remove MIPS32 accept4, recvmmsg, sendmmsg implementations.
MIPS32 has its own implementations of accept4, recvmmsg and sendmmsg because at one point it needed to avoid socketcall being used for those functions (MIPS32 has socketcall, but has never used it in glibc, and so never had socket.S at the time when socketcall used such a per-architecture file instead of C code). The current code no longer uses socketcall based on __NR_socketcall being defined, and the syscalls are always present on MIPS for supported kernels so the socketcall case in the code is dead for MIPS; this patch removes the implementations that are, as Adhemerval noted, no longer needed. Tested compilation for mips-linux-gnu with build-many-glibcs.py. * sysdeps/unix/sysv/linux/mips/mips32/accept4.c: Remove file. * sysdeps/unix/sysv/linux/mips/mips32/recvmmsg.c: Likewise. * sysdeps/unix/sysv/linux/mips/mips32/sendmmsg.c: Likewise. |
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Joseph Myers
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e3b0580d0d |
Simplify accept4, recvmmsg, sendmmsg code.
The accept4, recvmmsg and sendmmsg functions had macros __ASSUME_*_SYSCALL_WITH_SOCKETCALL. Before we could assume kernels with the relevant functionality, these macros represented the conditions under which, on a socketcall architecture, glibc could just call the syscall unconditionally and not have to deal with socketcall at all for those functions, because if the syscall didn't work for them the socketcall call wouldn't either. Now we can assume kernels with the relevant functionality, the only question is whether we can assume the syscall is present; if not, we are on a socketcall architecture and just use socketcall instead. Thus, this patch removes the macros that are no longer necessary, and simplifies the code for accept4, recvmmsg and sendmmsg to use the same logic as the other C implementations of socket functions that may use a syscall or socketcall depending on kernel support. Tested for x86_64 and x86. * sysdeps/unix/sysv/linux/accept4.c (accept4): Use syscall if [__ASSUME_ACCEPT4_SYSCALL], otherwise socketcall. * sysdeps/unix/sysv/linux/recvmmsg.c (recvmmsg): Use syscall if [__ASSUME_RECVMMSG_SYSCALL], otherwise socketcall. * sysdeps/unix/sysv/linux/sendmmsg.c (__sendmmsg): Use syscall if [__ASSUME_SENDMMSG_SYSCALL], otherwise socketcall. * sysdeps/unix/sysv/linux/kernel-features.h (__ASSUME_ACCEPT4_SYSCALL): Move to general list of macros for socket syscalls. (__ASSUME_RECVMMSG_SYSCALL): Likewise. (__ASSUME_SENDMMSG_SYSCALL): Likewise. * sysdeps/unix/sysv/linux/i386/kernel-features.h (__ASSUME_RECVMMSG_SYSCALL_WITH_SOCKETCALL): Remove. (__ASSUME_SENDMMSG_SYSCALL_WITH_SOCKETCALL): Likewise. * sysdeps/unix/sysv/linux/microblaze/kernel-features.h (__ASSUME_RECVMMSG_SYSCALL_WITH_SOCKETCALL): Remove. * sysdeps/unix/sysv/linux/powerpc/kernel-features.h (__ASSUME_SENDMMSG_SYSCALL_WITH_SOCKETCALL): Likewise. * sysdeps/unix/sysv/linux/sh/kernel-features.h (__ASSUME_SENDMMSG_SYSCALL_WITH_SOCKETCALL): Likewise. * sysdeps/unix/sysv/linux/sparc/kernel-features.h (__ASSUME_ACCEPT4_SYSCALL_WITH_SOCKETCALL): Likewise. (__ASSUME_RECVMMSG_SYSCALL_WITH_SOCKETCALL): Likewise. (__ASSUME_SENDMMSG_SYSCALL_WITH_SOCKETCALL): Likewise. |
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Joseph Myers
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0cb5da5c09 |
Simplify sendmmsg code.
Now we can assume a kernel with sendmmsg support, this patch simplifies the implementation to be similar to that for accept4: either using socketcall or the syscall according to whether the syscall is known to be available, without further fallback implementations. The __ASSUME_SENDMMSG macro is kept (now defined unconditionally), since it's used in resolv/res_send.c. Tested for x86_64 and x86. * sysdeps/unix/sysv/linux/kernel-features.h (__ASSUME_SENDMMSG_SYSCALL): Define unconditionally. (__ASSUME_SENDMMSG): Likewise. (__ASSUME_SENDMMSG_SOCKETCALL): Remove macro. * sysdeps/unix/sysv/linux/sendmmsg.c (__sendmmsg): Define using sendmmsg syscall if that can be assumed to be present, socketcall otherwise, with no fallback for runtime failure. |
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Joseph Myers
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9a45f54310 |
Simplify recvmmsg code.
Now we can assume a kernel with recvmmsg support, this patch simplifies the implementation to be similar to that for accept4: either using socketcall or the syscall according to whether the syscall is known to be available, without further fallback implementations. (In fact further simplification is possible, getting rid of the __ASSUME_*_SYSCALL_WITH_SOCKETCALL macros now that the minimum kernel is guaranteed support for all of accept4, recvmmsg, sendmmsg, whether through syscalls or through socketcall. I intend to do that for all of accept4 / recvmmsg / sendmmsg together - so making their implementations just like those for older socket functions - once the basic cleanup for 3.2 minimum kernel is done for sendmmsg as well as recvmmsg.) Tested for x86_64 and x86. * sysdeps/unix/sysv/linux/kernel-features.h (__ASSUME_RECVMMSG_SYSCALL): Define unconditionally. (__ASSUME_RECVMMSG_SOCKETCALL): Remove macro. (__ASSUME_RECVMMSG): Likewise. * sysdeps/unix/sysv/linux/recvmmsg.c (recvmmsg): Define using recvmmsg syscall if it can be assumed to be present, socketcall otherwise, with no fallback for runtime failure. |
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Joseph Myers
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695d7d138e |
Assume prlimit64 is available.
This patch makes sysdeps/unix/sysv/linux code assume the prlimit64 syscall is always available, given the minimum of a 3.2 kernel. __ASSUME_PRLIMIT64, which in fact was no longer used, is removed. Code conditional on __NR_prlimit64 being defined is made unconditional. Fallback code for the case where prlimit64 produces an ENOSYS error is removed, substantially simplifying some functions. Tested for x86_64 and x86. * sysdeps/unix/sysv/linux/kernel-features.h (__ASSUME_PRLIMIT64): Remove macro. * sysdeps/unix/sysv/linux/getrlimit64.c (__getrlimit64): Assume prlimit64 is always available and does not give an ENOSYS error. * sysdeps/unix/sysv/linux/prlimit.c [__NR_prlimit64]: Make code unconditional. [!__NR_prlimit64]: Remove conditional code. * sysdeps/unix/sysv/linux/setrlimit.c (__setrlimit): Assume prlimit64 is always available and does not give an ENOSYS error. * sysdeps/unix/sysv/linux/setrlimit64.c (__setrlimit64): Likewise. |
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Joseph Myers
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1721145f03 |
Remove __ASSUME_PROC_PID_TASK_COMM.
This patch removes the __ASSUME_PROC_PID_TASK_COMM macro, and associated conditional code (in a testcase), now that 3.2 is the global minimum Linux kernel version supported. Tested for x86_64. * sysdeps/unix/sysv/linux/kernel-features.h (__ASSUME_PROC_PID_TASK_COMM): Remove macro. * sysdeps/unix/sysv/linux/tst-setgetname.c: Do not include <kernel-features.h>. (do_test) [!__ASSUME_PROC_PID_TASK_COMM]: Remove conditional code. |
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Joseph Myers
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1278ed2c64 |
Remove __ASSUME_GETCPU_SYSCALL.
This patch removes the definition of __ASSUME_GETCPU_SYSCALL. In fact
this macro is unused, probably since:
commit
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Florian Weimer
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cd354a3849 |
Remove <sys/ultrasound.h>
This header was once used for constants related to the Gravis Ultrasound sound card. |
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Joseph Myers
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139ace9575 |
Require Linux kernel 3.2 or later on x86 / x86_64.
As per the recent discussion, this patch implements a requirement for Linux 3.2 or later for x86 and x86_64. This is only the initial change to increase the configured minimum; it's expected that followup patches would deal with associated removal of conditionals that are no longer needed. If we remove the start-up test on the kernel version, of course the NEWS and README text should then be revised (to reflect that this version is just one such that glibc does not intend to include compatibility code for any older kernel version, rather than older kernels necessarily failing to work or glibc necessarily having compatibility code for newer interfaces). The followups would be able to assume presence of getcpu (x86_64), recvmmsg (not always through its own syscall, sometimes only through socketcall), sendmmsg (likewise), /proc/$pid/task/$tid/comm, f_flags from statfs, prlimit64. Tested for x86_64 and x86. * sysdeps/unix/sysv/linux/i386/configure.ac (arch_minimum_kernel): Remove. * sysdeps/unix/sysv/linux/i386/configure: Regenerated. * sysdeps/unix/sysv/linux/x86_64/64/configure.ac (arch_minimum_kernel): Remove. * sysdeps/unix/sysv/linux/x86_64/64/configure: Regenerated. * README: Update statement about Linux kernel requirements. |
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Joseph Myers
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fd9f30f6f9 |
Use __glibc_reserved convention in mcontext, sigcontext (bug 21457).
This patch implements the most straightforward part of fixing namespace issues for sys/ucontext.h and related headers: where fields in sys/ucontext.h or bits/sigcontext.h are named "reserved", "padding" or similar, they are renamed to use the __glibc_reserved* naming convention. It does not change fields with a leading underscore, or even those with a prefix such as uc_ or sc_. It only fixes a small part of bug 21457, so no XFAILs are removed. Tested for x86_64 and x86, and with build-many-glibcs.py. [BZ #21457] * sysdeps/unix/sysv/linux/mips/sys/ucontext.h [_MIPS_SIM != _ABIO32] (mcontext_t): Rename field reserved to __glibc_reserved1. * sysdeps/unix/sysv/linux/x86/bits/sigcontext.h (struct _fpx_sw_bytes): Rename field padding to __glibc_reserved1. (struct _fpxreg): Likewise. [!__x86_64__] (struct _fpstate): Rename field reserved to __glibc_reserved1. Rename field padding to __glibc_reserved2. [__x86_64__] (struct _fpstate): Rename field padding to __glibc_reserved1. (struct _xsave_hdr): Rename field reserved1 to __glibc_reserved1. Rename field reserved2 to __glibc_reserved2. * sysdeps/unix/sysv/linux/x86/sys/ucontext.h [__x86_64__] (struct _libc_fpxreg): Rename field padding to __glibc_reserved1. [__x86_64__] (struct _libc_fpstate): Rename field padding to __glibc_reserved1. |
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H.J. Lu
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1432d38ea0 |
x86: Set dl_platform and dl_hwcap from CPU features [BZ #21391]
dl_platform and dl_hwcap are set from AT_PLATFORM and AT_HWCAP very early during startup. They are used by dynamic linker to determine platform and build an array of hardware capability names, which are added to search path when loading shared object. dl_platform and dl_hwcap are unused on x86-64. On i386, i386, i486, i586 and i686 platforms were supported and only SSE2 capability was used. On x86, usage of AT_PLATFORM and AT_HWCAP to determine platform and processor capabilities is obsolete since all information is available in dl_x86_cpu_features. This patch sets dl_platform and dl_hwcap from dl_x86_cpu_features in dynamic linker. On i386, the available plaforms are changed to i586 and i686 since i386 has been deprecated. On x86-64, the available plaforms are haswell, which is for Haswell class processors with BMI1, BMI2, LZCNT, MOVBE, POPCNT, AVX2 and FMA, and xeon_phi, which is for Xeon Phi class processors with AVX512F, AVX512CD, AVX512ER and AVX512PF. A capability, avx512_1, is also added to x86-64 for AVX512 ISAs: AVX512F, AVX512CD, AVX512BW, AVX512DQ and AVX512VL. [BZ #21391] * sysdeps/i386/dl-machine.h (dl_platform_init) [IS_IN (rtld)]: Only call init_cpu_features. [!IS_IN (rtld)]: Only set GLRO(dl_platform) to NULL if needed. * sysdeps/x86_64/dl-machine.h (dl_platform_init): Likewise. * sysdeps/i386/dl-procinfo.h: Removed. * sysdeps/unix/sysv/linux/i386/dl-procinfo.h: Don't include <sysdeps/i386/dl-procinfo.h> nor <ldsodefs.h>. Include <sysdeps/x86/dl-procinfo.h>. (_dl_procinfo): Replace _DL_HWCAP_COUNT with 32. * sysdeps/unix/sysv/linux/x86_64/dl-procinfo.h [!IS_IN (ldconfig)]: Include <sysdeps/x86/dl-procinfo.h> instead of <sysdeps/generic/dl-procinfo.h>. * sysdeps/x86/cpu-features.c: Include <dl-hwcap.h>. (init_cpu_features): Set dl_platform, dl_hwcap and dl_hwcap_mask. * sysdeps/x86/cpu-features.h (bit_cpu_LZCNT): New. (bit_cpu_MOVBE): Likewise. (bit_cpu_BMI1): Likewise. (bit_cpu_BMI2): Likewise. (index_cpu_BMI1): Likewise. (index_cpu_BMI2): Likewise. (index_cpu_LZCNT): Likewise. (index_cpu_MOVBE): Likewise. (index_cpu_POPCNT): Likewise. (reg_BMI1): Likewise. (reg_BMI2): Likewise. (reg_LZCNT): Likewise. (reg_MOVBE): Likewise. (reg_POPCNT): Likewise. * sysdeps/x86/dl-hwcap.h: New file. * sysdeps/x86/dl-procinfo.h: Likewise. * sysdeps/x86/dl-procinfo.c (_dl_x86_hwcap_flags): New. (_dl_x86_platforms): Likewise. |
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Adhemerval Zanella
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b62c381591 |
Consolidate Linux epoll_wait syscall
This patch consolidates the epoll_wait Linux syscall generation on sysdeps/unix/sysv/linux/epoll_wait.c. The implementation tries to use __NR_epoll_wait if defined, otherwise calls epoll_pwait. Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32, arch64-linux-gnu, arm-linux-gnueabihf, and powerpc64le-linux-gnu. * sysdeps/unix/sysv/linux/epoll_wait.c: New file. * sysdeps/unix/sysv/linux/generic/epoll_wait.c: Remove file. * sysdeps/unix/sysv/linux/syscalls.list: Remove epoll_wait from auto-generation list. |
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Adhemerval Zanella
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26f28fd73d |
Consolidate Linux select implementation
This patch consolidates the select Linux syscall implementation on
sysdeps/unix/sysv/linux/select.c. The changes are:
1. Remove select from auto-generation syscalls.list on the architecture
that uses __NR_select.
2. Remove generic implementation add a default one that handle all
current cases (with the expection of alpha)
The new default implementation will either use __NR_select if
available of fallback to __NR_pselect6 otherwise.
3. Add a alpha outlier implementation which requires old compatibility
symbols.
Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32,
arch64-linux-gnu, arm-linux-gnueabihf, and powerpc64le-linux-gnu.
* sysdeps/unix/sysv/linux/alpha/Makefile (sysdep_routines): Add
osf_select.
* sysdeps/unix/sysv/linux/alpha/select.c: New file.
* sysdeps/unix/sysv/linux/alpha/syscalls.list: Remove select and
osf_select from auto-generation list.
* sysdeps/unix/sysv/linux/syscalls.list: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc64/syscalls.list: Likewise.
* sysdeps/unix/sysv/linux/generic/select.c: Remove file.
* sysdeps/unix/sysv/linux/select.c: New file.
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Adhemerval Zanella
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b5eede9730 |
Consolidate Linux poll implementation
This patch consolidates the poll Linux syscall implementation on sysdeps/unix/sysv/linux/poll.c. It basically removes poll from auto-generation list and add a default implementation that either call __NR_poll directly (if the kernel headers defines it) or ppoll adjusting the timeout argument (as the generic implementation). Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32, aarch64-linux-gnu, arm-linux-gnueabihf, and powerpc64le-linux-gnu. * sysdeps/unix/sysv/linux/generic/poll.c: Remove file. * sysdeps/unix/sysv/linux/poll.c: New file. * sysdeps/unix/sysv/linux/syscalls.list: Remove poll from auto-generation list. |
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Joseph Myers
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14ea415d04 |
Add HWCAP_ASIMDRDM from Linux 4.11 to AArch64 bits/hwcap.h.
This patch adds the HWCAP_ASIMDRDM macro from Linux 4.11 to the AArch64 bits/hwcap.h. Tested (compilation only) with build-many-glibcs.py. * sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h (HWCAP_ASIMDRDM): New macro. |
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Adhemerval Zanella
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827b823783 |
posix: Fix internal p{read,write} plt usage
This patch adds internal alias for __pread, __pread64, and __pwrite
following the already in place one for __pwrite64. This is not used
in any implementation but on microblaze on preadv/pwritev fallback
(since it does not define __ASSUME_PREADV).
In fact it was signaled by commit
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Joseph Myers
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ef0e5f2f5c |
Add PF_SMC, AF_SMC from Linux 4.11 to bits/socket.h.
This patch adds the PF_SMC / AF_SMC macros from Linux 4.11 to sysdeps/unix/sysv/linux/bits/socket.h. Tested for x86_64. * sysdeps/unix/sysv/linux/bits/socket.h (PF_SMC): New macro. (PF_MAX): Set to 44. (AF_SMC): New macro. |
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Paul E. Murphy
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2f7f3cd8cd |
powerpc64le: Create divergent sysdep directory for powerpc64le.
float128 on powerpc64le requires the addition of the ieee754/float128 sysdep, whereas powerpc64 doesn't. This requires creating a bunch of submachine and cpu directories and Implies files which just point towards their powerpc64 equivalent. Tested on P7, P8, and generic powerpc64le targets with and without multiarch. * sysdeps/powerpc/powerpc64le/Implies: New file. * sysdeps/powerpc/powerpc64le/fpu/Implies: New file. * sysdeps/powerpc/powerpc64le/fpu/multiarch/Implies: New file. * sysdeps/powerpc/powerpc64le/multiarch/Implies: New file. * sysdeps/powerpc/powerpc64le/power7/Implies: New file. * sysdeps/powerpc/powerpc64le/power7/fpu/Implies: New file. * sysdeps/powerpc/powerpc64le/power7/fpu/multiarch/Implies: New file. * sysdeps/powerpc/powerpc64le/power7/multiarch/Implies: New file. * sysdeps/powerpc/powerpc64le/power8/Implies: New file. * sysdeps/powerpc/powerpc64le/power8/fpu/Implies: New file. * sysdeps/powerpc/powerpc64le/power8/fpu/multiarch/Implies: New file. * sysdeps/powerpc/powerpc64le/power8/multiarch/Implies: New file. * sysdeps/powerpc/powerpc64le/power9/Implies: New file. * sysdeps/powerpc/powerpc64le/power9/fpu/Implies: New file. * sysdeps/powerpc/powerpc64le/power9/fpu/multiarch/Implies: New file. * sysdeps/powerpc/powerpc64le/power9/multiarch/Implies: New file. * sysdeps/powerpc/preconfigure: New file. * sysdeps/unix/sysv/linux/powerpc/powerpc64le/Implies: New file. * sysdeps/unix/sysv/linux/powerpc/powerpc64le/fpu/Implies: New file. |
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Joseph Myers
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9fe3c80c7c |
Fix sys/socket.h namespace issues from sys/uio.h inclusion (bug 21426).
sys/socket.h includes sys/uio.h to get the definition of the iovec
structure.
POSIX allows sys/socket.h to make all sys/uio.h symbols visible.
However, all of sys/uio.h is XSI-shaded, so for non-XSI POSIX this
results in conformtest failures (for sys/socket.h and other headers
that include it):
Namespace violation: "UIO_MAXIOV"
Namespace violation: "readv"
Namespace violation: "writev"
Now, there is some ambiguity in POSIX about what namespace
reservations apply in this case - see
http://austingroupbugs.net/view.php?id=1127 - but glibc convention
would still avoid declaring readv and writev, for example, for feature
test macros that don't include them (if only headers from the relevant
standard are included), even if such declarations are permitted, so
there is a bug here according to glibc conventions.
This patch moves the struct iovec definition to a new
bits/types/struct_iovec.h header and includes that from sys/socket.h
instead of including the whole of sys/uio.h. This fixes the namespace
issue; however, three files in glibc that were relying on the implicit
inclusion needed to be updated to include sys/uio.h explicitly. So
there is a question of whether sys/socket.h should continue to include
sys/uio.h under some conditions, such as __USE_XOPEN or __USE_MISC or
__USE_XOPEN || __USE_MISC, for greater compatibility with code that
(wrongly) expects this optional inclusion to be present there. (I
think the three affected files in glibc should still have explicit
sys/uio.h inclusions added in any case, however.)
Tested for x86_64.
[BZ #21426]
* misc/bits/types/struct_iovec.h: New file.
* misc/Makefile (headers): Add bits/types/struct_iovec.h.
* include/bits/types/struct_iovec.h: New file.
* bits/uio.h (struct iovec): Replace by inclusion of
<bits/types/struct_iovec.h>.
* sysdeps/unix/sysv/linux/bits/uio.h (struct iovec): Likewise.
* socket/sys/socket.h: Include <bits/types/struct_iovec.h> instead
of <sys/uio.h>.
* nptl/tst-cancel4.c: Include <sys/uio.h>
* posix/test-errno.c: Likewise.
* support/resolv_test.c: Likewise.
* conform/Makefile (test-xfail-POSIX2008/arpa/inet.h/conform):
Remove.
(test-xfail-POSIX2008/netdb.h/conform): Likewise.
(test-xfail-POSIX2008/netinet/in.h/conform): Likewise.
(test-xfail-POSIX2008/sys/socket.h/conform): Likewise.
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Adhemerval Zanella
|
249548e476 |
posix: Remove ununsed posix_spawn internal assignment
The internal 'ret' variable in '__spawni_child' function is not used after assignment in most cases. Checked on x86_64-linux-gnu. * sysdeps/unix/sysv/linux/spawni.c (__spawni_child): Remove ununsed assignment. |
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Adhemerval Zanella
|
daeb1fa2e1 |
[BZ 21340] add support for POSIX_SPAWN_SETSID
This patch adds support for the POSIX_SPAWN_SETSID flag. It was recently accepted by the Austin Group: http://austingroupbugs.net/view.php?id=1044 Checked on x86_64 Daurnimator <quae@daurnimator.com> Adhemerval Zanella <adhemerval.zanella@linaro.org> [BZ #21340] * posix/Makefile (tests): Add tst-posix_spawn-setsid to list of tests. * posix/spawn.h: define POSIX_SPAWN_SETSID flag. * posix/spawnattr_setflags.c (ALL_FLAGS): Add POSIX_SPAWN_SETSID to valid flags. * posix/tst-posix_spawn-setsid.c: Add test for POSIX_SPAWN_SETSID. * sysdeps/mach/hurd/spawni.c (__spawni): Implementation of POSIX_SPAWN_SETSID. * sysdeps/posix/spawni.c (__spawni): Likewise. * sysdeps/unix/sysv/linux/spawni.c (__spawni_child): Likewise. * NEWS: Add note about POSIX_SPAWN_SETSID support. |
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Florian Weimer
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2f83a7294d | Create more sockets with SOCK_CLOEXEC [BZ #15722] | |
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Florian Weimer
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e92030239a |
Assume that accept4 is always available and works
Simplify the Linux accept4 implementation based on the assumption that it is available in some way. __ASSUME_ACCEPT4_SOCKETCALL was previously unused, so remove it. For ia64, the accept4 system call (and socket call) were backported in kernel version 3.2.18. Reflect this in the installation instructions. |
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Joseph Myers
|
2288c2674d |
Fix bits/socket.h IOC* namespace issues (bug 21267).
sysdeps/unix/sysv/linux/bits/socket.h includes asm/socket.h. That includes asm/sockios.h, which on MIPS includes asm/ioctl.h, resulting in namespace violations from IOC* macros. bits/socket.h already has code to handle asm/socket.h unconditionally defining macros that are only wanted for __USE_MISC. This patch extends it to handle the IOC* macros as well (always undefining them if not defined when bits/socket.h was included, as I don't think they are part of the intended API even for __USE_MISC). It's possible there should also be a kernel fix - it's not clear to me that IOC* belong in the uapi headers, and even if they do they might best be split out into another header to avoid getting defined by this particular path. But since glibc needs to deal with existing kernel headers, it also seems appropriate to extend the existing workaround to these macros. Tested (compilation only) with build-many-glibcs.py. [BZ #21267] * sysdeps/unix/sysv/linux/bits/socket.h (IOCSIZE_MASK): Undefine if defined by <asm/socket.h> and not previously defined. (IOCSIZE_SHIFT): Likewise. (IOC_IN): Likewise. (IOC_INOUT): Likewise. (IOC_OUT): Likewise. |
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Florian Weimer
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cef9b65376 | Assume that O_CLOEXEC is always defined and works | |
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Florian Weimer
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b48061e1a5 | Assume that dup3 is available | |
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Florian Weimer
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46d8874d5b |
Assume that pipe2 is always available
The Debian patches for Hurd (which are already required to build glibc before this commit) contain an implementation of pipe2. |
|
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Adhemerval Zanella
|
158d5fa0e1 |
Consolidate Linux mmap implementation (BZ#21270)
This patch consolidates all Linux mmap implementations on default
sysdeps/unix/sysv/linux/mmap{64}.c one. To accomodate all required
architecture specific requeriments a new internal header is created
(mmap_internal.h) where each architecture add its specific code
requirements. Currently only x86_64 (to define MMAP_PREPARE to add
MAP_32BITS), s390 (which have a different kernel ABI for mmap), m68k
(which have variable minimum page sizes), and MIPS n32 (which zero
extend the offset to handle negative one correctly) redefine the new
header.
The patch also fixes BZ#21270 where default mmap64 on architectures
which uses mmap2 silent truncates large offsets value (larger than
1 << (page shift + 8 * sizeof (off_t)) or 1<<44 on architectures with
4096 bytes page size). The new consolidate implementation returns
EINVAL as allowed by POSIX.
It also adds a tests for on current tst-mmap-offset one. I have run
a full make check on x86_64, x86_64-32, i686, aarch64, armhf, powerpc,
powerpc64le, sparc64, and sparcv9 without any regressions. I also ran
some basic tests (tst-mmap-offset) on sh4, m68k, and on qemu simulated
MIPS32 and MIPS64.
[BZ #21270]
* posix/tst-mmap-offset.c (do_prepare): New function.
(do_test): Rename to do_test_bz18877 and use FAIL_RET.
(do_test_bz21270): New function.
* sysdeps/unix/sysv/linux/aarch64/mmap.c: Remove file.
* sysdeps/unix/sysv/linux/arm/mmap.c: Remove file.
* sysdeps/unix/sysv/linux/generic/wordsize-32/mmap.c: Likewise.
* sysdeps/unix/sysv/linux/hppa/mmap.c: Likewise.
* sysdeps/unix/sysv/linux/i386/mmap.c: Likewise.
* sysdeps/unix/sysv/linux/m68k/mmap.S: Likewise.
* sysdeps/unix/sysv/linux/m68k/mmap64.c: Likewise.
* sysdeps/unix/sysv/linux/microblaze/mmap.S: Likewise.
* sysdeps/unix/sysv/linux/mips/mips32/mmap.c: Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/n32/mmap.c: Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/n64/mmap64.c: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-32/mmap.S: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-32/mmap64.S: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-64/mmap.S: Likewise.
* sysdeps/unix/sysv/linux/wordsize-64/mmap.c: Likewise.
* sysdeps/unix/sysv/linux/wordsize-64/mmap64.c: Likewise.
* sysdeps/unix/sysv/linux/x86_64/64/mmap.c: Likewise.
* sysdeps/unix/sysv/linux/mmap_internal.h: New file.
* sysdeps/unix/sysv/linux/m68k/mmap_internal.h: Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/n32/mmap_internal.h: Likewise.
* sysdeps/unix/sysv/linux/s390/mmap_internal.h: Likewise.
* sysdeps/unix/sysv/linux/x86_64/64/mmap_internal.h: Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/n64/syscalls.list: Remove mmap
from auto-generation list.
* sysdeps/unix/sysv/linux/mips/mips64/n32/syscalls.list: Likewise.
* sysdeps/unix/sysv/linux/wordsize-64/syscalls.list: Likewise.
* sysdeps/unix/sysv/linux/mmap.c: New file.
* sysdeps/unix/sysv/linux/mmap64.c (__mmap64): Add check for invalid
offsets and support for mmap2 syscall.
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Adhemerval Zanella
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38efe8c5a5 |
Consolidate pthreadtype.h placementConsolidate pthreadtype.h placement
This patch moves all arch specific pthreadtypes.h to a similar path
for all architectures (sysdeps/unix/sysv/<arch>/bits). No functional
or build change is expected. The idea is mainly to organize the
header placement for all architectures.
Checked with a build for all major ABI (aarch64-linux-gnu, alpha-linux-gnu,
arm-linux-gnueabi, i386-linux-gnu, ia64-linux-gnu,
m68k-linux-gnu, microblaze-linux-gnu [1], mips{64}-linux-gnu, nios2-linux-gnu,
powerpc{64le}-linux-gnu, s390{x}-linux-gnu, sparc{64}-linux-gnu,
tile{pro,gx}-linux-gnu, and x86_64-linux-gnu).
* sysdeps/unix/sysv/linux/x86/Implies: New file.
* sysdeps/unix/sysv/linux/alpha/bits/pthreadtypes.h: Move to ...
* sysdeps/alpha/nptl/bits/pthreadtypes.h: ... here.
* sysdeps/unix/sysv/linux/powerpc/bits/pthreadtypes.h: Move to ...
* sysdeps/powerpc/nptl/bits/pthreadtypes.h: ... here.
* sysdeps/x86/bits/pthreadtypes.h: Move to ...
* sysdeps/x86/nptl/bits/pthreadtypes.h: ... here.
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Adhemerval Zanella
|
db3d848e15 |
Build divdi3 only for architecture that required it
As noted in [1], divdi3 object is only exported in a handful ABIs
(i386, m68k, powerpc32, s390-32, and ia64), however it is built
for all current architectures regardless.
This patch refact the make rules for this object to so only the
aforementioned architectures that actually require it builds it.
Also, to avoid internal PLT calls to the exported symbol from the
module, glibc uses an internal header (symbol-hacks.h) which is
unrequired (and in fact breaks the build for architectures that
intend to get symbol definitions from libgcc.a). The patch also
changes it to create its own header (divdi3-symbol-hacks.h) and
adjust the architectures that require it accordingly.
I checked the build/check (with run-built-tests=no) on the
following architectures (which I think must cover all supported
ABI/builds) using GCC 6.3:
aarch64-linux-gnu
alpha-linux-gnu
arm-linux-gnueabihf
hppa-linux-gnu
ia64-linux-gnu
m68k-linux-gnu
microblaze-linux-gnu
mips64-n32-linux-gnu
mips-linux-gnu
mips64-linux-gnu
nios2-linux-gnu
powerpc-linux-gnu
powerpc-linux-gnu-power4
powerpc64-linux-gnu
powerpc64le-linux-gnu
s390x-linux-gnu
s390-linux-gnu
sh4-linux-gnu
sh4-linux-gnu-soft
sparc64-linux-gnu
sparcv9-linux-gnu
tilegx-linux-gnu
tilegx-linux-gnu-32
tilepro-linux-gnu
x86_64-linux-gnu
x86_64-linux-gnu-x32
i686-linux-gnu
I only saw one regression on sparcv9-linux-gnu (extra PLT call to
.udiv) which I address in next patch in the set. It also correctly
build SH with GCC 7.0.1 (without any regression from
|
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Adhemerval Zanella
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2e4cf77897 |
Remove __ASSUME_REQUEUE_PI
The new cond var implementation (
|
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Mike Frysinger
|
21f042c804 |
posix_spawn: use a larger min stack for -fstack-check [BZ #21253]
When glibc is built with -fstack-check, trying to use posix_spawn can
lead to segfaults due to gcc internally probing stack memory too far.
The new spawn API will allocate a minimum of 1 page, but the stack
checking logic might probe a couple of pages. When it tries to walk
them, everything falls apart.
The gcc internal docs [1] state the default interval checking is one
page. Which means we need two pages (the current one, and the next
probed). No target currently defines it larger.
Further, it mentions that the default minimum stack size needed to
recover from an overflow is 4/8KiB for sjlj or 8/12KiB for others.
But some Linux targets (like mips and ppc) go up to 16KiB (and some
non-Linux targets go up to 24KiB).
Let's create each child with a minimum of 32KiB slack space to support
them all, and give us future breathing room.
No test is added as existing ones crash. Even a simple call is
enough to trigger the problem:
char *argv[] = { "/bin/ls", NULL };
posix_spawn(NULL, "/bin/ls", NULL, NULL, argv, NULL);
[1] https://gcc.gnu.org/onlinedocs/gcc-6.3.0/gccint/Stack-Checking.html
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Adhemerval Zanella
|
2183741fdc |
Fix more test-errno issues
This patch fixes some test-errno-linux unexpected returns for the
tested syscalls on some older kernels (I saw it on a Linux 3.8 on
armv7l). Basically:
- inotify_add_watch: Linux v3.8 (676a0675c) removed the test to
check at least one valid bit in flags (to return EINVAL). It
was later added back in v3.9 (04df32fa1).
- quotactl: returns ENOSYS for kernels not configured with
CONFIG_QUOTA.
Checked on x86_64-linux-gnu and armv7l-linux-gnueabihf.
* sysdeps/unix/sysv/linux/test-errno-linux.c (do_test): Handle
non expected inotify_add_watch and quotactl return.
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Adhemerval Zanella
|
dd5905de03 |
Consolidate set* Linux implementation
This patch consolidates the Linux setegid, seteuid, setgid, setgroups, setregid, setresgid, setresuid, setreuid, and setuid implementation on default sysdeps/unix/sysv/linux/set*.c implementation. It basically removes all the architecture define implementations and add support for __NR_set*32 syscall on Linux default implementation. Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32, aarch64-linux-gnu, arm-linux-gnueabihf, and powerpc64le-linux-gnu. * sysdeps/unix/sysv/linux/arm/setegid.c: Remove file. * sysdeps/unix/sysv/linux/arm/seteuid.c: Likewise. * sysdeps/unix/sysv/linux/arm/setgid.c: Likewise. * sysdeps/unix/sysv/linux/arm/setgroups.c: Likewise. * sysdeps/unix/sysv/linux/arm/setregid.c: Likewise. * sysdeps/unix/sysv/linux/arm/setresgid.c: Likewise. * sysdeps/unix/sysv/linux/arm/setresuid.c: Likewise. * sysdeps/unix/sysv/linux/arm/setreuid.c: Likewise. * sysdeps/unix/sysv/linux/arm/setuid.c: Likewise. * sysdeps/unix/sysv/linux/i386/setegid.c: Likewise. * sysdeps/unix/sysv/linux/i386/seteuid.c: Likewise. * sysdeps/unix/sysv/linux/i386/setgid.c: Likewise. * sysdeps/unix/sysv/linux/i386/setgroups.c: Likewise. * sysdeps/unix/sysv/linux/i386/setregid.c: Likewise. * sysdeps/unix/sysv/linux/i386/setresgid.c: Likewise. * sysdeps/unix/sysv/linux/i386/setresuid.c: Likewise. * sysdeps/unix/sysv/linux/i386/setreuid.c: Likewise. * sysdeps/unix/sysv/linux/i386/setuid.c: Likewise. * sysdeps/unix/sysv/linux/m68k/setegid.c: Likewise. * sysdeps/unix/sysv/linux/m68k/seteuid.c: Likewise. * sysdeps/unix/sysv/linux/m68k/setgid.c: Likewise. * sysdeps/unix/sysv/linux/m68k/setgroups.c: Likewise. * sysdeps/unix/sysv/linux/m68k/setregid.c: Likewise. * sysdeps/unix/sysv/linux/m68k/setresgid.c: Likewise. * sysdeps/unix/sysv/linux/m68k/setresuid.c: Likewise. * sysdeps/unix/sysv/linux/m68k/setreuid.c: Likewise. * sysdeps/unix/sysv/linux/m68k/setuid.c: Likewise. * sysdeps/unix/sysv/linux/microblaze/setgroups.c: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/setegid.c: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/seteuid.c: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/setgid.c: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/setgroups.c: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/setregid.c: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/setresgid.c: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/setresuid.c: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/setreuid.c: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/setuid.c: Likewise. * sysdeps/unix/sysv/linux/sh/setegid.c: Likewise. * sysdeps/unix/sysv/linux/sh/seteuid.c: Likewise. * sysdeps/unix/sysv/linux/sh/setgid.c: Likewise. * sysdeps/unix/sysv/linux/sh/setgroups.c: Likewise. * sysdeps/unix/sysv/linux/sh/setregid.c: Likewise. * sysdeps/unix/sysv/linux/sh/setresgid.c: Likewise. * sysdeps/unix/sysv/linux/sh/setresuid.c: Likewise. * sysdeps/unix/sysv/linux/sh/setreuid.c: Likewise. * sysdeps/unix/sysv/linux/sh/setuid.c: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/setegid.c: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/seteuid.c: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/setgid.c: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/setgroups.c: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/setregid.c: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/setresgid.c: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/setresuid.c: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/setreuid.c: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/setuid.c: Likewise. * sysdeps/unix/sysv/linux/setegid.c (setegid): Use INLINE_SYSCALL_ERROR_RETURN_VALUE. * sysdeps/unix/sysv/linux/seteuid.c (seteuid): Likewise. * sysdeps/unix/sysv/linux/setgid.c (setgid): Use __NR_setgid32 if defined. * sysdeps/unix/sysv/linux/setgroups.c (setgroups): Use __NR_setgroups32 if defined. * sysdeps/unix/sysv/linux/setregid.c (__setregid): Use __NR_setregid32 if defined. * sysdeps/unix/sysv/linux/setresgid.c (__setresgid): Use __NR_setresgid32 is defined. * sysdeps/unix/sysv/linux/setresuid.c (__setresuid): Use __NR_setresuid32 if defined. * sysdeps/unix/sysv/linux/setreuid.c (__setreuid): Use __NR_setreuid32 if defined. * sysdeps/unix/sysv/linux/setuid.c (__setuid): Use __NR_setuid32 if defined. |
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Joseph Myers
|
78c0581432 |
Define more termios.h macros unconditionally for alpha (bug 21277).
termios.h should define IUCLC for UNIX98 and older XSI standards. The sysdeps/unix/sysv/linux/alpha version defines it only if __USE_MISC, so causing some conform/ tests to fail. Other versions define it unconditionally (I* being a reserved namespace for this header); the API should be consistent between architectures in the absence of a clear reason for it to differ (and given that a symbol is part of the API on two architectures, I don't see any reason for the feature test macros required ever to differ between those architectures), so this patch makes the alpha version define it unconditionally as well. Two non-POSIX macros alongside it, IMAXBEL and IUTF8, are also defined unconditionally on other architectures, so this patch makes them consistent by defining them unconditionally on alpha as well. Tested (compilation only) with build-many-glibcs.py. [BZ #21277] * sysdeps/unix/sysv/linux/alpha/bits/termios.h (IUCLC): Define unconditionally. (IMAXBEL): Likewise. (IUTF8): Likewise. |
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Joseph Myers
|
76b2c32a16 |
conformtest: Add x32 XFAILs for mq_attr element types (bug 21279).
POSIX specifies long as the type of elements of struct mq_attr. For x32, they are __syscall_slong_t (i.e. long long). This patch XFAILs the corresponding tests for x32 in the conformtest expectations (the bug should not be closed without an actual fix). Tested with build-many-glibcs.py. [BZ #21279] * sysdeps/unix/sysv/linux/x86_64/x32/Makefile [$(subdir) = conform] (conformtest-xfail-conds): Update comment. * conform/data/mqueue.h-data (mq_attr.mq_flags): XFAIL for x86_64-x32-linux. (mq_attr.mq_maxmsg): Likewise. (mq_attr.mq_msgsize): Likewise. (mq_attr.mq_curmsgs): Likewise. |
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Joseph Myers
|
112039611c |
conformtest: Add mips XFAIL for struct stat st_rdev type (bug 21278).
MIPS o32 struct stat has the wrong type of st_rdev. This patch XFAILs that test in the conformtest expectations for this case (the bug should not be closed without an actual fix, however). Tested with build-many-glibcs.py. [BZ #21278] * sysdeps/unix/sysv/linux/mips/mips32/Makefile [$(subdir) = conform] (conformtest-xfail-conds): Update comment. * conform/data/sys/stat.h-data (stat.st_rdev): XFAIL for mips-o32-linux. |
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Joseph Myers
|
ba7fe6906d |
Fix alpha termios.h NL2, NL3 namespace (bug 21268).
sysdeps/unix/sysv/linux/alpha/bits/termios.h defines NL2 and NL3 for __USE_MISC || __USE_XOPEN. These should only be defined for __USE_MISC as they are not part of any standard namespace. This patch conditions them accordingly, matching the powerpc version of the header (the only other one in glibc that defines these macros). Tested (compilation only) with build-many-glibcs.py. [BZ #21268] * sysdeps/unix/sysv/linux/alpha/bits/termios.h (NL2): Define only if [__USE_MISC] (NL3): Likewise. |
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Mike Frysinger
|
ddc3fb3334 |
posix_spawn: fix stack setup on ia64 [BZ #21275]
The ia64-specific clone2 call expects the base of the stack mapping and the stack size as sep arguments, not an initial stack value as on other stack-grows-down architectures. Reuse the stack-grows-up macro so we pass in the right stack base. Reported-by: Matt Turner <mattst88@gentoo.org> |
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Christian Brauner
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15e9a4f378 |
linux ttyname and ttyname_r: do not return wrong results
If a link (say /proc/self/fd/0) pointing to a device, say /dev/pts/2, in a parent mount namespace is passed to ttyname, and a /dev/pts/2 exists (in a different devpts) in the current namespace, then it returns /dev/pts/2. But /dev/pts/2 is NOT the current tty, it is a different file and device. Detect this case and return ENODEV. Userspace can choose to take this as a hint that the fd points to a tty device but to act on the fd rather than the link. Signed-off-by: Serge Hallyn <serge@hallyn.com> Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com> |
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Joseph Myers
|
345118d7f5 |
conformtest: XFAIL tv_nsec tests for x32 (bug 16437).
This patch XFAILs the conformtest tv_nsec tests for x32 so that the incorrect type does not potentially hide other failures. As this is not a fix for the bug, it should remain open in Bugzilla. Tested (compilation only) with build-many-glibcs.py. [BZ #16437] * sysdeps/unix/sysv/linux/x86_64/x32/Makefile [$(subdir) = conform] (conformtest-xfail-conds): New variable. * conform/data/signal.h-data (timespec.tv_nsec): XFAIL for x86_64-x32-linux. * conform/data/sys/select.h-data (timespec.tv_nsec): Likewise. * conform/data/sys/stat.h-data (timespec.tv_nsec): Likewise. * conform/data/time.h-data (timespec.tv_nsec): Likewise. |
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Joseph Myers
|
19641dbd61 |
Fix sparc64 bits/setjmp.h namespace (bug 21261).
sysdeps/unix/sysv/linux/sparc/bits/setjmp.h defines 64-bit __jmp_buf with a load of identifiers that are not part of any standard namespace, resulting in conform/ tests failing. This patch fixes this by moving those identifiers to the implementation namespace, so enabling the conform/ tests to pass for sparc64. Tested (compilation only) for sparc64 with build-many-glibcs.py. [BZ #21261] * sysdeps/unix/sysv/linux/sparc/bits/setjmp.h [__WORDSIZE == 64 && !_ASM] (__sparc64_jmp_buf): Use reserved names for all fields. * sysdeps/sparc/sparc64/jmpbuf-unwind.h (_JMPBUF_UNWINDS): Update for jmp_buf field renaming. (_JMPBUF_UNWINDS_ADJ): Likewise. |
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Joseph Myers
|
20409ce5e8 |
Make alpha termios.h define IXANY unconditionally (bug 21259).
sysdeps/unix/sysv/linux/alpha/bits/termios.h defines IXANY only if __USE_MISC. But it's in the base standard for POSIX.1:2008, and XSI-shaded in previous standards. This patch makes the header define it unconditionally, like other versions of this header do (it's always reserved by standards that don't require it, so defining unconditionally is OK by the standards). Tested (compilation only) for alpha with build-many-glibcs.py. Note that there are still termios.h conformtest failures after this patch because of other issues with the alpha version of this header. [BZ #21259] * sysdeps/unix/sysv/linux/alpha/bits/termios.h (IXANY): Define unconditionally, not just for [__USE_MISC]. |
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Joseph Myers
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0cb521871b |
conformtest: Add mips XFAIL for struct stat st_dev type (bug 17786).
As noted in bug 17786, MIPS o32 struct stat has the wrong type of st_dev. This patch XFAILs that test in the conformtest expectations for this case (the test still fails after the patch because there's also a similar issue for st_rdev that needs reporting and XFAILing separately, and the bug should not be closed without an actual fix, not just XFAILing). Tested for mips with build-many-glibcs.py. [BZ #17786] * sysdeps/unix/sysv/linux/mips/mips32/Makefile: New file. * conform/data/sys/stat.h-data (stat.st_dev): XFAIL for mips-o32-linux. |
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Joseph Myers
|
bb5cc234e1 |
conformtest: Add alpha XFAIL for struct netent n_net type (bug 21260).
As noted in bug 21260, sysdeps/unix/sysv/linux/alpha/bits/netdb.h defines struct netent with n_net of type unsigned long instead of the correct uint32_t. This patch XFAILs that test in the conformtest expectations for alpha. (This is not a fix for the bug, and it should not be closed without an actual fix.) Tested for alpha with build-many-glibcs.py. [BZ #21260] * sysdeps/unix/sysv/linux/alpha/Makefile [$(subdir) = conform] (conformtest-xfail-conds): New variable. |
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Steve Ellcey
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d2e4346a30 |
Add ifunc support for aarch64.
* sysdeps/aarch64/dl-machine.h: Include cpu-features.c. (DL_PLATFORM_INIT): New define. (dl_platform_init): New function. * sysdeps/aarch64/ldsodefs.h: Include cpu-features.h. * sysdeps/unix/sysv/linux/aarch64/cpu-features.c: New file. * sysdeps/unix/sysv/linux/aarch64/cpu-features.h: Likewise. * sysdeps/unix/sysv/linux/aarch64/dl-procinfo.c: Likewise. * sysdeps/unix/sysv/linux/aarch64/libc-start.c: Likewise. |
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Adhemerval Zanella
|
b36a65e5ca |
Fix test-errno issues
This patch fixes multiple issues of test-errno.c (
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Adhemerval Zanella
|
ed7d6072f2 |
Fix missing posix_fadvise64 mips64 static build (BZ #21232)
This patch fixes the missing posix_fadvise64 symbol for static build required for _FILE_OFFSET_BITS=64 on mips64 build. Checked on a mips64-linux-gnu build with run-built-tests=no. [BZ #21232] * sysdeps/unix/sysv/linux/mips/mips64/n64/posix_fadvise64.c: Add posix_fadvise64 weak_alias for static build. |
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Joseph Myers
|
53a4608f8d |
Add more IPV6_* macros to sysdeps/unix/sysv/linux/bits/in.h.
Linux 4.10 adds IPV6_RECVFRAGSIZE to include/uapi/linux/in6.h, which shows that several such IPV6_* macros are missing from glibc's sysdeps/unix/sysv/linux/bits/in.h (while older ones are present). I don't know whether any of these might be deliberately omitted, but this patch adds what appear to be the missing more recent macros to glibc. Tested for x86_64. * sysdeps/unix/sysv/linux/bits/in.h (IPV6_AUTOFLOWLABEL): New macro. (IPV6_ADDR_PREFERENCES): Likewise. (IPV6_MINHOPCOUNT): Likewise. (IPV6_ORIGDSTADDR): Likewise. (IPV6_RECVORIGDSTADDR): Likewise. (IPV6_TRANSPARENT): Likewise. (IPV6_UNICAST_IF): Likewise. (IPV6_RECVFRAGSIZE): Likewise. |
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Marko Myllynen
|
cb09a3d497 |
Fix send consolidation typo
Fix
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Adhemerval Zanella
|
60f9423b6b |
Consolidate Linux send implementation
This patch consolidates the send Linux syscall implementation on
sysdeps/unix/sysv/linux/send{to}.c. The changes are:
1. Remove send from auto-generation syscalls.list on the architecture
that uses __NR_send.
2. Define __NR_send for architectures that supports it. It was done instead
of defining in default kernel-features.h because current Linux practice
for new ports are to implement only __NR_sendto [1] and it will
require adding new kernel-features for ports that do not require it
(aarch64 for instance).
3. Remove __ASSUME_SENDTO_FOR_SEND_SYSCALL and decide to use
__NR_sendto for send generation based on __ASSUME_SENDTO_SYSCALL.
Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32,
aarch64-linux-gnu, arm-linux-gnueabihf, and powerpc64le-linux-gnu.
* sysdeps/unix/sysv/linux/sysdep.h (HAVE_INTERNAL_SEND_SYMBOL):
Define.
* sysdeps/unix/sysv/linux/aarch64/sysdep.h
(HAVE_INTERNAL_SEND_SYMBOL): Undefine.
* sysdeps/unix/sysv/linux/nios2/sysdep.h
(HAVE_INTERNAL_SEND_SYMBOL): Likewise.
* sysdeps/unix/sysv/linux/tile/sysdep.h
(HAVE_INTERNAL_SEND_SYMBOL): Likewise.
* sysdeps/unix/sysv/linux/alpha/kernel-features.h
(__ASSUME_RECV_SYSCALL): Define.
* sysdeps/unix/sysv/linux/arm/kernel-features.h
(__ASSUME_RECV_SYSCALL): Likewise.
* sysdeps/unix/sysv/linux/hppa/kernel-features.h
(__ASSUME_RECV_SYSCALL): Likewise.
* sysdeps/unix/sysv/linux/ia64/kernel-features.h
(__ASSUME_RECV_SYSCALL): Likewise.
* sysdeps/unix/sysv/linux/mips/kernel-features.h
(__ASSUME_RECV_SYSCALL): Likewise.
* sysdeps/unix/sysv/linux/i386/kernel-features.h
(__ASSUME_SENDTO_FOR_SEND_SYSCALL): Remove define.
* sysdeps/unix/sysv/linux/m68k/kernel-features.h
(__ASSUME_SENDTO_FOR_SEND_SYSCALL): Likewise.
* sysdeps/unix/sysv/linux/s390/kernel-features.h
(__ASSUME_SENDTO_FOR_SEND_SYSCALL): Likewise.
* sysdeps/unix/sysv/linux/alpha/syscalls.list: Remove send from
auto-generation list.
* sysdeps/unix/sysv/linux/arm/syscalls.list: Likewise.
* sysdeps/unix/sysv/linux/hppa/syscalls.list: Likewise.
* sysdeps/unix/sysv/linux/ia64/syscalls.list: Likewike.
* sysdeps/unix/sysv/linux/mips/syscalls.list: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc64/syscalls.list: Likewise.
* sysdeps/unix/sysv/linux/send.c: Simplify includes.
(__ASSUME_SENDTO_FOR_SEND_SYSCALL): Replace by
__ASSUME_SENDTO_SYSCALL.
* sysdeps/unix/sysv/linux/x86_64/send.c: Remove file.
* sysdeps/unix/sysv/linux/mips/mips64/send.c: Likewise.
* sysdeps/unix/sysv/linux/generic/send.c: Likewise.
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Adhemerval Zanella
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06cf371e97 |
Consolidate Linux sendto implementation
This patch consolidates the sendto Linux syscall implementation on sysdeps/unix/sysv/linux/sendto.c. The changes are: 1. Define __ASSUME_SENDTO_SYSCALL by default. 2. Undef it for architectures that do not support __NR_sendto. Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32, aarch64-linux-gnu, arm-linux-gnueabihf, and powerpc64le-linux-gnu. * sysdeps/unix/sysv/linux/alpha/syscalls.list: Remove sendto from auto-generation list. * sysdeps/unix/sysv/linux/arm/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/generic/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/hppa/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/ia64/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/mips/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/x86_64/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/kernel-features.h (__ASSUME_SENDTO_SYSCALL): Define by default. * sysdeps/unix/sysv/linux/i386/kernel-features.h (__ASSUME_SENDTO_SYSCALL): Undef it is kernel does not support __NR_sendto. * sysdeps/unix/sysv/linux/m68k/kernel-features.h (__ASSUME_SENDTO_SYSCALL): Likewise. * sysdeps/unix/sysv/linux/s390/kernel-features.h (__ASSUME_SENDTO_SYSCALL): Likewise. * sysdeps/unix/sysv/linux/microblaze/kernel-features.h (__ASSUME_SENDTO_SYSCALL): Remove definition. * sysdeps/unix/sysv/linux/powerpc/kernel-features.h (__ASSUME_SENDTO_SYSCALL): Likewise. * sysdeps/unix/sysv/linux/sh/kernel-features.h: (__ASSUME_SENDTO_SYSCALL): Likewise. * sysdeps/unix/sysv/linux/sendto.c: Simplify includes. |
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Adhemerval Zanella
|
df799d9eb3 |
Consolidate Linux recv implementation
This patch consolidates the recv Linux syscall implementation on
sysdeps/unix/sysv/linux/recv.c. The changes are:
1. Remove recv from auto-generation syscalls.list on the architecture
that uses __NR_recv.
2. Define __NR_recv for architectures that supports it. It was done
instead of defining in default kernel-features.h because current Linux
practice for new ports is to implement only __NR_recvfrom [1] and it will
require adding new kernel-features for ports that do not require it
(aarch64 for instance).
3. Remove __ASSUME_RECVFROM_FOR_RECV_SYSCALL and decide to use
__NR_recvfrom for recv generation based on __ASSUME_RECVFROM_SYSCALL.
Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32,
aarch64-linux-gnu, arm-linux-gnueabihf, and powerpc64le-linux-gnu.
* sysdeps/unix/sysv/linux/alpha/syscalls.list: Remove recv from
auto-generation list.
* sysdeps/unix/sysv/linux/arm/syscalls.list: Likewise.
* sysdeps/unix/sysv/linux/hppa/syscalls.list: Likewise.
* sysdeps/unix/sysv/linux/ia64/syscalls.list: Likewise.
* sysdeps/unix/sysv/linux/mips/syscalls.list: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc64/syscalls.list: Likewise.
* sysdeps/unix/sysv/linux/alpha/kernel-features.h
(__ASSUME_RECV_SYSCALL): New define.
* sysdeps/unix/sysv/linux/arm/kernel-features.h
(__ASSUME_RECV_SYSCALL): Likewise.
* sysdeps/unix/sysv/linux/hppa/kernel-features.h
(__ASSUME_RECV_SYSCALL): Likewise.
* sysdeps/unix/sysv/linux/ia64/kernel-features.h
(__ASSUME_RECV_SYSCALL): Likewise.
* sysdeps/unix/sysv/linux/mips/kernel-features.h
(__ASSUME_RECV_SYSCALL): Likewise.
* sysdeps/unix/sysv/linux/i386/kernel-features.h
(__ASSUME_RECVFROM_FOR_RECV_SYSCALL): Remove define.
* sysdeps/unix/sysv/linux/m68k/kernel-features.h
(__ASSUME_RECVFROM_FOR_RECV_SYSCALL): Remove define.
* sysdeps/unix/sysv/linux/s390/kernel-features.h
(__ASSUME_RECVFROM_FOR_RECV_SYSCALL): Remove define.
* sysdeps/unix/sysv/linux/generic/recv.c: Remove file.
* sysdeps/unix/sysv/linux/mips/mips64/recv.c: Likewise.
* sysdeps/unix/sysv/linux/x86_64/recv.c: Likewise.
* sysdeps/unix/sysv/linux/recv.c: Simplify includes.
(__libc_recv): Use __ASSUME_RECVFROM_SYSCALL instead of
__ASSUME_RECVFROM_FOR_RECV_SYSCALL to issue recvfrom syscall.
[1] include/asm-generic/unistd.h (__ARCH_WANT_SYSCALL_DEPRECATED)
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Adhemerval Zanella
|
1f8161a801 |
Consolidate Linux recvfrom implementation
This patch consolidates the recvfrom Linux syscall implementation on sysdeps/unix/sysv/linux/recvfrom.c. The changes are: 1. Define __ASSUME_RECVFROM_SYSCALL by default 2. Undef it for architectures that do not support __NR_recvfrom. Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32, aarch64-linux-gnu, arm-linux-gnueabihf, and powerpc64le-linux-gnu. * sysdeps/unix/sysv/linux/alpha/syscalls.list: Remove recvfrom from auto-generation list. * sysdeps/unix/sysv/linux/arm/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/generic/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/hppa/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/ia64/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/x86_64/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/mips/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/i386/kernel-features.h * sysdeps/unix/sysv/linux/kernel-features.h (__ASSUME_RECVFROM_SYSCALL): Define by default. (__ASSUME_RECVFROM_SYSCALL): Undef it if kernel does not support __NR_recvfrom. * sysdeps/unix/sysv/linux/m68k/kernel-features.h (__ASSUME_RECVFROM_SYSCALL): Likewise. * sysdeps/unix/sysv/linux/s390/kernel-features.h (__ASSUME_RECVFROM_SYSCALL): Likewise. * sysdeps/unix/sysv/linux/microblaze/kernel-features.h (__ASSUME_RECVFROM_SYSCALL): Remove definition. * sysdeps/unix/sysv/linux/powerpc/kernel-features.h (__ASSUME_RECVFROM_SYSCALL): Likewise. * sysdeps/unix/sysv/linux/sh/kernel-features.h (__ASSUME_RECVFROM_SYSCALL): Likewise. * sysdeps/unix/sysv/linux/sparc/kernel-features.h (__ASSUME_RECVFROM_SYSCALL): Likewise. * sysdeps/unix/sysv/linux/recvfrom.c: Simplify includes. |
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Adhemerval Zanella
|
3e9ff426cb |
Consolidate Linux connect implementation
This patch consolidates the connect Linux syscall implementation on
sysdeps/unix/sysv/linux/accept.c. The changes are:
1. Remove connect from auto-generation syscalls.list on the architecture
that uses __NR_connect.
2. Define __NR_connect as default (__ASSUME_CONNECT_SYSCALL) and undef for
architectures that do not support it.
Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32,
aarch64-linux-gnu, arm-linux-gnueabihf, and powerpc64le-linux-gnu.
* sysdeps/unix/sysv/linux/alpha/syscalls.list: Remove connect from
auto-generation list.
* sysdeps/unix/sysv/linux/arm/syscalls.list: Likewise.
* sysdeps/unix/sysv/linux/generic/syscalls.list: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc64/syscalls.list: Likewise.
* sysdeps/unix/sysv/linux/x86_64/syscalls.list: Likewise.
* sysdeps/unix/sysv/linux/hppa/syscalls.list: Likewise.
* sysdeps/unix/sysv/linux/ia64/syscalls.list: Likewise.
* sysdeps/unix/sysv/linux/mips/syscalls.list: Likewise.
* sysdeps/unix/sysv/linux/connect.c: Simplify include list.
* sysdeps/unix/sysv/linux/kernel-features.h
(__ASSUME_CONNECT_SYSCALL): Define.
* sysdeps/unix/sysv/linux/i386/kernel-features.h
(__ASSUME_CONNECT_SYSCALL): Undef if kernel does not support it.
* sysdeps/unix/sysv/linux/m68k/kernel-features.h
(__ASSUME_CONNECT_SYSCALL): Likewise.
* sysdeps/unix/sysv/linux/s390/kernel-features.h
(__ASSUME_CONNECT_SYSCALL): Likewise.
* sysdeps/unix/sysv/linux/sparc/kernel-features.h
(__ASSUME_CONNECT_SYSCALL): Likewise.
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Adhemerval Zanella
|
01061a7cab |
Consolidate Linux accept implementation
This patch consolidates the accept Linux syscall implementation on
sysdeps/unix/sysv/linux/accept.c. The changes are:
1. Remove accept from auto-generation syscalls.list on the architecture
that uses __NR_accept.
2. Define __NR_accept as default (__ASSUME_ACCEPT_SYSCALL) and undef for
architectures that do not support it.
3. Remove __ASSUME_ACCEPT4_FOR_ACCEPT_SYSCALL and decide to use
__NR_accept4 for accept generation based on __ASSUME_ACCEPT4_SYSCALL.
Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32,
aarch64-linux-gnu, arm-linux-gnueabihf, and powerpc64le-linux-gnu.
* sysdeps/unix/sysv/linux/accept.c (__libc_accept): Replace
__ASSUME_ACCEPT4_FOR_ACCEPT_SYSCALL by __ASSUME_ACCEPT4_SYSCALL.
* sysdeps/unix/sysv/linux/alpha/syscalls.list: Remove accept from
auto-generation list.
* sysdeps/unix/sysv/linux/arm/syscalls.list: Likewise.
* sysdeps/unix/sysv/linux/generic/syscalls.list: Likewise.
* sysdeps/unix/sysv/linux/hppa/syscalls.list: Likewise.
* sysdeps/unix/sysv/linux/ia64/syscalls.list: Likewise.
* sysdeps/unix/sysv/linux/mips/syscalls.list: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc64/syscalls.list: Likewise.
* sysdeps/unix/sysv/linux/x86_64/syscalls.list: Likewise.
* sysdeps/unix/sysv/linux/i386/kernel-features.h
(__ASSUME_ACCEPT4_FOR_ACCEPT_SYSCALL): Remove define.
(__ASSUME_ACCEPT_SYSCALL): Undefine.
* sysdeps/unix/sysv/linux/kernel-features.h
(__ASSUME_ACCEPT_SYSCALL): New define.
* sysdeps/unix/sysv/linux/m68k/kernel-features.h
(__ASSUME_ACCEPT4_FOR_ACCEPT_SYSCALL): Remove define.
(__ASSUME_ACCEPT_SYSCALL): Define wheter kernel version supports.
* sysdeps/unix/sysv/linux/microblaze/kernel-features.h
(__ASSUME_ACCEPT_SYSCALL): Define.
* sysdeps/unix/sysv/linux/powerpc/kernel-features.h
(__ASSUME_ACCEPT_SYSCALL): Undefine.
* sysdeps/unix/sysv/linux/s390/kernel-features.h
(__ASSUME_ACCEPT4_FOR_ACCEPT_SYSCALL): Remove define.
(__ASSUME_ACCEPT_SYSCALL): Undefine.
* sysdeps/unix/sysv/linux/sh/kernel-features.h
(__ASSUME_ACCEPT_SYSCALL): Undefine.
* sysdeps/unix/sysv/linux/sparc/kernel-features.h
(__ASSUME_ACCEPT_SYSCALL): Undefine for 32 bits.
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Yury Norov
|
9a56f87183 |
Test for correct setting of errno.
This patch adds tests for POSIX and Linux specific syscalls that implemented with syscall templates machinery. The reason of tests is to receive the expected error code and test if it's handled properly by glibc. 2017-03-08 Yury Norov <ynorov@caviumnetworks.com> Zack Weinberg <zackw@panix.com> * posix/test-errno.c: New file. * posix/Makefile (tests): Add test-errno. * sysdeps/unix/sysv/linux/test-errno.c: New file. * sysdeps/unix/sysv/linux/Makefile (tests): Add test-errno. |
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Adhemerval Zanella
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a7055e5935 |
hppa: set __IPC_64 as zero for SysV IPC calls
In
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Florian Weimer
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2d6ab5df3b | Document and fix --enable-bind-now [BZ #21015] | |
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Zack Weinberg
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9090848d06 |
Narrowing the visibility of libc-internal.h even further.
posix/wordexp-test.c used libc-internal.h for PTR_ALIGN_DOWN; similar
to what was done with libc-diag.h, I have split the definitions of
cast_to_integer, ALIGN_UP, ALIGN_DOWN, PTR_ALIGN_UP, and PTR_ALIGN_DOWN
to a new header, libc-pointer-arith.h.
It then occurred to me that the remaining declarations in libc-internal.h
are mostly to do with early initialization, and probably most of the
files including it, even in the core code, don't need it anymore. Indeed,
only 19 files actually need what remains of libc-internal.h. 23 others
need libc-diag.h instead, and 12 need libc-pointer-arith.h instead.
No file needs more than one of them, and 16 don't need any of them!
So, with this patch, libc-internal.h stops including libc-diag.h as
well as losing the pointer arithmetic macros, and all including files
are adjusted.
* include/libc-pointer-arith.h: New file. Define
cast_to_integer, ALIGN_UP, ALIGN_DOWN, PTR_ALIGN_UP, and
PTR_ALIGN_DOWN here.
* include/libc-internal.h: Definitions of above macros
moved from here. Don't include libc-diag.h anymore either.
* posix/wordexp-test.c: Include stdint.h and libc-pointer-arith.h.
Don't include libc-internal.h.
* debug/pcprofile.c, elf/dl-tunables.c, elf/soinit.c, io/openat.c
* io/openat64.c, misc/ptrace.c, nptl/pthread_clock_gettime.c
* nptl/pthread_clock_settime.c, nptl/pthread_cond_common.c
* string/strcoll_l.c, sysdeps/nacl/brk.c
* sysdeps/unix/clock_settime.c
* sysdeps/unix/sysv/linux/i386/get_clockfreq.c
* sysdeps/unix/sysv/linux/ia64/get_clockfreq.c
* sysdeps/unix/sysv/linux/powerpc/get_clockfreq.c
* sysdeps/unix/sysv/linux/sparc/sparc64/get_clockfreq.c:
Don't include libc-internal.h.
* elf/get-dynamic-info.h, iconv/loop.c
* iconvdata/iso-2022-cn-ext.c, locale/weight.h, locale/weightwc.h
* misc/reboot.c, nis/nis_table.c, nptl_db/thread_dbP.h
* nscd/connections.c, resolv/res_send.c, soft-fp/fmadf4.c
* soft-fp/fmasf4.c, soft-fp/fmatf4.c, stdio-common/vfscanf.c
* sysdeps/ieee754/dbl-64/e_lgamma_r.c
* sysdeps/ieee754/dbl-64/k_rem_pio2.c
* sysdeps/ieee754/flt-32/e_lgammaf_r.c
* sysdeps/ieee754/flt-32/k_rem_pio2f.c
* sysdeps/ieee754/ldbl-128/k_tanl.c
* sysdeps/ieee754/ldbl-128ibm/k_tanl.c
* sysdeps/ieee754/ldbl-96/e_lgammal_r.c
* sysdeps/ieee754/ldbl-96/k_tanl.c, sysdeps/nptl/futex-internal.h:
Include libc-diag.h instead of libc-internal.h.
* elf/dl-load.c, elf/dl-reloc.c, locale/programs/locarchive.c
* nptl/nptl-init.c, string/strcspn.c, string/strspn.c
* malloc/malloc.c, sysdeps/i386/nptl/tls.h
* sysdeps/nacl/dl-map-segments.h, sysdeps/x86_64/atomic-machine.h
* sysdeps/unix/sysv/linux/spawni.c
* sysdeps/x86_64/nptl/tls.h:
Include libc-pointer-arith.h instead of libc-internal.h.
* elf/get-dynamic-info.h, sysdeps/nacl/dl-map-segments.h
* sysdeps/x86_64/atomic-machine.h:
Add multiple include guard.
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Zack Weinberg
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5e4e10636c |
Miscellaneous low-risk changes preparing for _ISOMAC testsuite.
These are a grab bag of changes where the testsuite was using internal symbols of some variety, but this was straightforward to fix, and the fixed code should work with or without the change to compile the testsuite under _ISOMAC. Four of these are just more #include adjustments, but I want to highlight sysdeps/powerpc/fpu/tst-setcontext-fpscr.c, which appears to have been written before the advent of sys/auxv.h. I think a big chunk of this file could be replaced by a simple call to getauxval, but I'll let someone who actually has a powerpc machine to test on do that. dlfcn/tst-dladdr.c was including ldsodefs.h just so it could use DL_LOOKUP_ADDRESS to print an additional diagnostic; as requested by Carlos, I have removed this. math/test-misc.c was using #ifndef NO_LONG_DOUBLE, which is an internal configuration macro, to decide whether to do certain tests involving 'long double'. I changed the test to #if LDBL_MANT_DIG > DBL_MANT_DIG instead, which uses only public float.h macros and is equivalent on all supported platforms. (Note that NO_LONG_DOUBLE doesn't mean 'the compiler doesn't support long double', it means 'long double is the same as double'.) tst-writev.c has a configuration macro 'ARTIFICIAL_LIMIT' that the Makefiles are expected to define, and sysdeps/unix/sysv/linux/Makefile was using the internal __getpagesize in the definition; changed to sysconf(_SC_PAGESIZE) which is the POSIX equivalent. ia64-linux doesn't supply 'clone', only '__clone2', which is not defined in the public headers(!) All the other clone tests have local extern declarations of __clone2, but tst-clone.c doesn't; it was getting away with this because include/sched.h does declare __clone2. * nss/tst-cancel-getpwuid_r.c: Include nss.h. * string/strcasestr.c: No need to include config.h. * sysdeps/powerpc/fpu/tst-setcontext-fpscr.c: Include sys/auxv.h. Don't include sysdep.h. * sysdeps/powerpc/tst-set_ppr.c: Don't include dl-procinfo.h. * dlfcn/tst-dladdr.c: Don't include ldsodefs.h. Don't use DL_LOOKUP_ADDRESS. * math/test-misc.c: Instead of testing NO_LONG_DOUBLE, test whether LDBL_MANT_DIG is greater than DBL_MANT_DIG. * sysdeps/unix/sysv/linux/Makefile (CFLAGS-tst-writev.c): Use sysconf (_SC_PAGESIZE) instead of __getpagesize in definition of ARTIFICIAL_LIMIT. * sysdeps/unix/sysv/linux/tst-clone.c [__ia64__]: Add extern declaration of __clone2. |
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Joseph Myers
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63e1c3768d |
Add TFD_TIMER_CANCEL_ON_SET to sys/timerfd.h.
In Linux 4.10, timerfd constants moved to a new uapi header, which showed up that glibc's sys/timerfd.h is missing the old flag TFD_TIMER_CANCEL_ON_SET. This patch adds that flag to glibc's header. Tested for x86_64. * sysdeps/unix/sysv/linux/sys/timerfd.h (TFD_TIMER_CANCEL_ON_SET): New enum constant and macro. |
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Joseph Myers
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72aaa20bbc |
Add IP_RECVFRAGSIZE from Linux 4.10.
Linux 4.10 adds a new IP_RECVFRAGSIZE macro to include/uapi/linux/in.h. This patch adds it to glibc's sysdeps/unix/sysv/linux/bits/in.h. Tested for x86_64. * sysdeps/unix/sysv/linux/bits/in.h (IP_RECVFRAGSIZE): New macro. |
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Adhemerval Zanella
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3b33d6ed60 |
Rework -fno-omit-frame-pointer support on i386
Commit
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Zack Weinberg
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ceaa98897c |
Add missing header files throughout the testsuite.
* crypt/md5.h: Test _LIBC with #if defined, not #if. * dirent/opendir-tst1.c: Include sys/stat.h. * dirent/tst-fdopendir.c: Include sys/stat.h. * dirent/tst-fdopendir2.c: Include stdlib.h. * dirent/tst-scandir.c: Include stdbool.h. * elf/tst-auditmod1.c: Include link.h and stddef.h. * elf/tst-tls15.c: Include stdlib.h. * elf/tst-tls16.c: Include stdlib.h. * elf/tst-tls17.c: Include stdlib.h. * elf/tst-tls18.c: Include stdlib.h. * iconv/tst-iconv6.c: Include endian.h. * iconvdata/bug-iconv11.c: Include limits.h. * io/test-utime.c: Include stdint.h. * io/tst-faccessat.c: Include sys/stat.h. * io/tst-fchmodat.c: Include sys/stat.h. * io/tst-fchownat.c: Include sys/stat.h. * io/tst-fstatat.c: Include sys/stat.h. * io/tst-futimesat.c: Include sys/stat.h. * io/tst-linkat.c: Include sys/stat.h. * io/tst-mkdirat.c: Include sys/stat.h and stdbool.h. * io/tst-mkfifoat.c: Include sys/stat.h and stdbool.h. * io/tst-mknodat.c: Include sys/stat.h and stdbool.h. * io/tst-openat.c: Include stdbool.h. * io/tst-readlinkat.c: Include sys/stat.h. * io/tst-renameat.c: Include sys/stat.h. * io/tst-symlinkat.c: Include sys/stat.h. * io/tst-unlinkat.c: Include stdbool.h. * libio/bug-memstream1.c: Include stdlib.h. * libio/bug-wmemstream1.c: Include stdlib.h. * libio/tst-fwrite-error.c: Include stdlib.h. * libio/tst-memstream1.c: Include stdlib.h. * libio/tst-memstream2.c: Include stdlib.h. * libio/tst-memstream3.c: Include stdlib.h. * malloc/tst-interpose-aux.c: Include stdint.h. * misc/tst-preadvwritev-common.c: Include sys/stat.h. * nptl/tst-basic7.c: Include limits.h. * nptl/tst-cancel25.c: Include pthread.h, not pthreadP.h. * nptl/tst-cancel4.c: Include stddef.h, limits.h, and sys/stat.h. * nptl/tst-cancel4_1.c: Include stddef.h. * nptl/tst-cancel4_2.c: Include stddef.h. * nptl/tst-cond16.c: Include limits.h. Use sysconf(_SC_PAGESIZE) instead of __getpagesize. * nptl/tst-cond18.c: Include limits.h. Use sysconf(_SC_PAGESIZE) instead of __getpagesize. * nptl/tst-cond4.c: Include stdint.h. * nptl/tst-cond6.c: Include stdint.h. * nptl/tst-stack2.c: Include limits.h. * nptl/tst-stackguard1.c: Include stddef.h. * nptl/tst-tls4.c: Include stdint.h. Don't include tls.h. * nptl/tst-tls4moda.c: Include stddef.h. Don't include stdio.h, unistd.h, or tls.h. * nptl/tst-tls4modb.c: Include stddef.h. Don't include stdio.h, unistd.h, or tls.h. * nptl/tst-tls5.h: Include stddef.h. Don't include stdlib.h or tls.h. * posix/tst-getaddrinfo2.c: Include stdio.h. * posix/tst-getaddrinfo5.c: Include stdio.h. * posix/tst-pathconf.c: Include sys/stat.h. * posix/tst-posix_fadvise-common.c: Include stdint.h. * posix/tst-preadwrite-common.c: Include sys/stat.h. * posix/tst-regex.c: Include stdint.h. Don't include spawn.h or spawn_int.h. * posix/tst-regexloc.c: Don't include spawn.h or spawn_int.h. * posix/tst-vfork3.c: Include sys/stat.h. * resolv/tst-bug18665-tcp.c: Include stdlib.h. * resolv/tst-res_hconf_reorder.c: Include stdlib.h. * resolv/tst-resolv-search.c: Include stdlib.h. * stdio-common/tst-fmemopen2.c: Include stdint.h. * stdio-common/tst-vfprintf-width-prec.c: Include stdlib.h. * stdlib/test-canon.c: Include sys/stat.h. * stdlib/tst-tls-atexit.c: Include stdbool.h. * string/test-memchr.c: Include stdint.h. * string/tst-cmp.c: Include stdint.h. * sysdeps/pthread/tst-timer.c: Include stdint.h. * sysdeps/unix/sysv/linux/tst-sync_file_range.c: Include stdint.h. * sysdeps/wordsize-64/tst-writev.c: Include limits.h and stdint.h. * sysdeps/x86_64/fpu/math-tests-arch.h: Include cpu-features.h. Don't include init-arch.h. * sysdeps/x86_64/multiarch/test-multiarch.h: Include cpu-features.h. Don't include init-arch.h. * sysdeps/x86_64/tst-auditmod10b.c: Include link.h and stddef.h. * sysdeps/x86_64/tst-auditmod3b.c: Include link.h and stddef.h. * sysdeps/x86_64/tst-auditmod4b.c: Include link.h and stddef.h. * sysdeps/x86_64/tst-auditmod5b.c: Include link.h and stddef.h. * sysdeps/x86_64/tst-auditmod6b.c: Include link.h and stddef.h. * sysdeps/x86_64/tst-auditmod6c.c: Include link.h and stddef.h. * sysdeps/x86_64/tst-auditmod7b.c: Include link.h and stddef.h. * time/clocktest.c: Include stdint.h. * time/tst-posixtz.c: Include stdint.h. * timezone/tst-timezone.c: Include stdint.h. |
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Adhemerval Zanella
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42de7e2029 |
aarch64: fix errno address calculation in SYSCALL_ERROR_HANDLER
This patch fixes the last regression in LTP lite scenario (mmap16) comparing to lp64 in my source trees [1, 2]. The fix has been suggested back in 2015 [3] but was never applied. Checked on aarch64-linux-gnu. * sysdeps/unix/sysv/linux/aarch64/sysdep.h: use PTR_REG() for offset calculation in SYSCALL_ERROR_HANDLER(). [1] https://github.com/norov/glibc/tree/dev9 [2] https://github.com/norov/linux/tree/ilp32-20170203 [3] https://sourceware.org/ml/libc-alpha/2015-03/msg00587.html |
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Kir Kolyshkin
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3f67d1a702 |
Add Linux PTRACE_EVENT_STOP
Add PTRACE_EVENT_STOP value to Linux's sys/ptrace.h, modify related comments accordingly. This constant initially appeared in Linux 3.1 (kernel commit 3544d72a, "ptrace: implement PTRACE_SEIZE") but its value has changed later in Linux 3.4 (kernel commit 5cdf389a, "ptrace: renumber PTRACE_EVENT_STOP so that future new options and events can match"). The comment is also taken from the above commit. This constant is used by e.g. strace, CRIU, Mozilla RR. * sysdeps/unix/sysv/linux/aarch64/sys/ptrace.h (__ptrace_eventcodes): Add PTRACE_EVENT_STOP. * sysdeps/unix/sysv/linux/ia64/sys/ptrace.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/sys/ptrace.h: Likewise. * sysdeps/unix/sysv/linux/s390/sys/ptrace.h: Likewise. * sysdeps/unix/sysv/linux/sparc/sys/ptrace.h: Likewise. * sysdeps/unix/sysv/linux/sys/ptrace.h: Likewise. * sysdeps/unix/sysv/linux/tile/sys/ptrace.h: Likewise. |
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Rajalakshmi Srinivasaraghavan
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c2ff5ec13f |
powerpc: Set minimum kernel version for powerpc64le
This patch sets the minimum kernel version required for ppc64le as 3.10.0. |
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Ivo Raisr
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0b20e02c97 |
sparc: Remove unused assignment in __clone
It is no longer needed to preserve the flags parameter to `clone' since
the commit
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Adhemerval Zanella
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841a67a0ad |
Consolidate arm and mips posix_fadvise implementations
As noted by
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Chung-Lin Tang
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efeca5dac6 | Add ipc_priv.h header for Nios II to set __IPC_64 to zero. | |
Carlos O'Donell
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f8bf15febc |
Bug 20116: Fix use after free in pthread_create()
The commit documents the ownership rules around 'struct pthread' and when a thread can read or write to the descriptor. With those ownership rules in place it becomes obvious that pd->stopped_start should not be touched in several of the paths during thread startup, particularly so for detached threads. In the case of detached threads, between the time the thread is created by the OS kernel and the creating thread checks pd->stopped_start, the detached thread might have already exited and the memory for pd unmapped. As a regression test we add a simple test which exercises this exact case by quickly creating detached threads with large enough stacks to ensure the thread stack cache is bypassed and the stacks are unmapped. Before the fix the testcase segfaults, after the fix it works correctly and completes without issue. For a detailed discussion see: https://www.sourceware.org/ml/libc-alpha/2017-01/msg00505.html |
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James Clarke
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3e1b518550 |
Bug 21053: sh: Reduce namespace pollution from sys/ucontext.h
The problem is basically that sys/ucontext.h is defining R0..R15 which happens to conflict with some packages like Firefox when trying to build on SH. The very same problem existed on arm back then [1] and it was fixed by renaming R0..R15 to REG_R0..REG_R15. This patch imploy a similar strategy for SH. Checked on sh4-linux-gnu with run-built-tests=no and I also got reports that it fixes Firefox build on Debian sh4. * sysdeps/unix/sysv/linux/sh/sh3/ucontext_i.sym: Use new REG_R* constants instead of the old R* ones. * sysdeps/unix/sysv/linux/sh/sh4/ucontext_i.sym: Likewise. * sysdeps/unix/sysv/linux/sh/sys/ucontext.h (NGPREG): Rename... (NGREG): ... to this, to fit in with other architectures. (gpregset_t): Use new NGREG macro. [__USE_GNU]: Remove condition; all architectures other than tile are unconditional. (R*): Rename to REG_R*. |
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Tulio Magno Quites Machado Filho
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eb1321f291 |
powerpc: Fix adapt_count update in __lll_unlock_elision
Commit
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Stefan Liebler
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03b007771b |
S390: Adjust lock elision code after review.
This patch adjusts s390 specific lock elision code after review of the following patches: -S390: Use own tbegin macro instead of __builtin_tbegin. ( |
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Joseph Myers
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fe3f0488da |
Restore clock_* librt exports for MicroBlaze (bug 21061).
MicroBlaze had clock_* functions exported from librt in glibc 2.18 and 2.19, as confirmed in <https://sourceware.org/ml/libc-alpha/2017-01/msg00369.html>, and they then disappeared in 2.20, presumably as a result of the fix <https://sourceware.org/ml/libc-alpha/2014-02/msg00598.html> for a Versions.def bug that had resulted in their unintended inclusion in 2.18 (followed by removal of the Versions.def mechanism that allowed such bugs). As they were released in that library, they should be considered part of the GLIBC_2.18 ABI and so restored for the sake of any binaries that expect them in that library. This patch restores them by adding a MicroBlaze version of clock-compat.c that overrides SHLIB_COMPAT. Tested (compilation only) with build-many-glibcs.py (where this fixes the librt ABI test failure; elf/check-execstack still fails and still needs architecture maintainer attention to fix it or XFAIL it with an appropriate explanatory comment). [BZ #21061] * sysdeps/unix/sysv/linux/microblaze/clock-compat.c: New file. |
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Joseph Myers
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b040e1b084 |
Make soft-float powerpc swapcontext restore the signal mask (bug 21045).
The soft-float powerpc version of swapcontext does not restore the signal mask, resulting in stdlib/tst-setcontext2 failing: after getcontext after setcontext after swapcontext FAIL: SIGUSR2 is blocked after swapcontext. This patch fixes this by adjusting the arguments passed to __sigprocmask so that it restores the saved signal mask as well as saving the existing one. (For hard-float, this code is only used for a compat symbol, not for the current version of swapcontext.) Tested for soft-float powerpc. [BZ #21045] * sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext-common.S (__CONTEXT_FUNC_NAME): Pass address of signal mask to be restored to __sigprocmask. |
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Chris Metcalf
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4cb89c1581 |
tile: pass __IPC_64 as zero for SysV IPC calls
In
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Torvald Riegel
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65810f0ef0 |
robust mutexes: Fix broken x86 assembly by removing it
lll_robust_unlock on i386 and x86_64 first sets the futex word to FUTEX_WAITERS|0 before calling __lll_unlock_wake, which will set the futex word to 0. If the thread is killed between these steps, then the futex word will be FUTEX_WAITERS|0, and the kernel (at least current upstream) will not set it to FUTEX_OWNER_DIED|FUTEX_WAITERS because 0 is not equal to the TID of the crashed thread. The lll_robust_lock assembly code on i386 and x86_64 is not prepared to deal with this case because the fastpath tries to only CAS 0 to TID and not FUTEX_WAITERS|0 to TID; the slowpath simply waits until it can CAS 0 to TID or the futex_word has the FUTEX_OWNER_DIED bit set. This issue is fixed by removing the custom x86 assembly code and using the generic C code instead. However, instead of adding more duplicate code to the custom x86 lowlevellock.h, the code of the lll_robust* functions is inlined into the single call sites that exist for each of these functions in the pthread_mutex_* functions. The robust mutex paths in the latter have been slightly reorganized to make them simpler. This patch is meant to be easy to backport, so C11-style atomics are not used. [BZ #20985] * nptl/Makefile: Adapt. * nptl/pthread_mutex_cond_lock.c (LLL_ROBUST_MUTEX_LOCK): Remove. (LLL_ROBUST_MUTEX_LOCK_MODIFIER): New. * nptl/pthread_mutex_lock.c (LLL_ROBUST_MUTEX_LOCK): Remove. (LLL_ROBUST_MUTEX_LOCK_MODIFIER): New. (__pthread_mutex_lock_full): Inline lll_robust* functions and adapt. * nptl/pthread_mutex_timedlock.c (pthread_mutex_timedlock): Inline lll_robust* functions and adapt. * nptl/pthread_mutex_unlock.c (__pthread_mutex_unlock_full): Likewise. * sysdeps/nptl/lowlevellock.h (__lll_robust_lock_wait, __lll_robust_lock, lll_robust_cond_lock, __lll_robust_timedlock_wait, __lll_robust_timedlock, __lll_robust_unlock): Remove. * sysdeps/unix/sysv/linux/i386/lowlevellock.h (lll_robust_lock, lll_robust_cond_lock, lll_robust_timedlock, lll_robust_unlock): Remove. * sysdeps/unix/sysv/linux/x86_64/lowlevellock.h (lll_robust_lock, lll_robust_cond_lock, lll_robust_timedlock, lll_robust_unlock): Remove. * sysdeps/unix/sysv/linux/sparc/lowlevellock.h (__lll_robust_lock_wait, __lll_robust_lock, lll_robust_cond_lock, __lll_robust_timedlock_wait, __lll_robust_timedlock, __lll_robust_unlock): Remove. * nptl/lowlevelrobustlock.c: Remove file. * nptl/lowlevelrobustlock.sym: Likewise. * sysdeps/unix/sysv/linux/i386/lowlevelrobustlock.S: Likewise. * sysdeps/unix/sysv/linux/x86_64/lowlevelrobustlock.S: Likewise. |
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Joseph Myers
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c1f0601389 |
Fix MIPS o32 posix_fadvise.
The posix_fadvise consolidation broke posix_fadvise for MIPS o32, so resulting in posix/tst-posix_fadvise failing. MIPS o32 (and the other ABIs) has only the posix_fadvise64 syscall, which acts like posix_fadvise64_64 (in the o32 case, because of the alignment argument it's actually a 7-argument syscall). The generic posix_fadvise implementation presumes that if __NR_fadvise64 is defined, it's for the case where a single len argument is passed to the syscall rather than two syscall arguments in the case of a 32-bit system. The generic posix_fadvise64 works fine for this case (defining __NR_fadvise64_64 to __NR_fadvise64 as needed). ARM has a posix_fadvise.c that uses __posix_fadvise64_l64 in posix_fadvise, and that approach also works for MIPS o32, so this patch makes MIPS o32 include the ARM file. Tested for MIPS o32. * sysdeps/unix/sysv/linux/mips/mips32/posix_fadvise.c: New file. |
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Torvald Riegel
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cc25c8b4c1 |
New pthread rwlock that is more scalable.
This replaces the pthread rwlock with a new implementation that uses a more scalable algorithm (primarily through not using a critical section anymore to make state changes). The fast path for rdlock acquisition and release is now basically a single atomic read-modify write or CAS and a few branches. See nptl/pthread_rwlock_common.c for details. * nptl/DESIGN-rwlock.txt: Remove. * nptl/lowlevelrwlock.sym: Remove. * nptl/Makefile: Add new tests. * nptl/pthread_rwlock_common.c: New file. Contains the new rwlock. * nptl/pthreadP.h (PTHREAD_RWLOCK_PREFER_READER_P): Remove. (PTHREAD_RWLOCK_WRPHASE, PTHREAD_RWLOCK_WRLOCKED, PTHREAD_RWLOCK_RWAITING, PTHREAD_RWLOCK_READER_SHIFT, PTHREAD_RWLOCK_READER_OVERFLOW, PTHREAD_RWLOCK_WRHANDOVER, PTHREAD_RWLOCK_FUTEX_USED): New. * nptl/pthread_rwlock_init.c (__pthread_rwlock_init): Adapt to new implementation. * nptl/pthread_rwlock_rdlock.c (__pthread_rwlock_rdlock_slow): Remove. (__pthread_rwlock_rdlock): Adapt. * nptl/pthread_rwlock_timedrdlock.c (pthread_rwlock_timedrdlock): Adapt. * nptl/pthread_rwlock_timedwrlock.c (pthread_rwlock_timedwrlock): Adapt. * nptl/pthread_rwlock_trywrlock.c (pthread_rwlock_trywrlock): Adapt. * nptl/pthread_rwlock_tryrdlock.c (pthread_rwlock_tryrdlock): Adapt. * nptl/pthread_rwlock_unlock.c (pthread_rwlock_unlock): Adapt. * nptl/pthread_rwlock_wrlock.c (__pthread_rwlock_wrlock_slow): Remove. (__pthread_rwlock_wrlock): Adapt. * nptl/tst-rwlock10.c: Adapt. * nptl/tst-rwlock11.c: Adapt. * nptl/tst-rwlock17.c: New file. * nptl/tst-rwlock18.c: New file. * nptl/tst-rwlock19.c: New file. * nptl/tst-rwlock2b.c: New file. * nptl/tst-rwlock8.c: Adapt. * nptl/tst-rwlock9.c: Adapt. * sysdeps/aarch64/nptl/bits/pthreadtypes.h (pthread_rwlock_t): Adapt. * sysdeps/arm/nptl/bits/pthreadtypes.h (pthread_rwlock_t): Adapt. * sysdeps/hppa/nptl/bits/pthreadtypes.h (pthread_rwlock_t): Adapt. * sysdeps/ia64/nptl/bits/pthreadtypes.h (pthread_rwlock_t): Adapt. * sysdeps/m68k/nptl/bits/pthreadtypes.h (pthread_rwlock_t): Adapt. * sysdeps/microblaze/nptl/bits/pthreadtypes.h (pthread_rwlock_t): Adapt. * sysdeps/mips/nptl/bits/pthreadtypes.h (pthread_rwlock_t): Adapt. * sysdeps/nios2/nptl/bits/pthreadtypes.h (pthread_rwlock_t): Adapt. * sysdeps/s390/nptl/bits/pthreadtypes.h (pthread_rwlock_t): Adapt. * sysdeps/sh/nptl/bits/pthreadtypes.h (pthread_rwlock_t): Adapt. * sysdeps/sparc/nptl/bits/pthreadtypes.h (pthread_rwlock_t): Adapt. * sysdeps/tile/nptl/bits/pthreadtypes.h (pthread_rwlock_t): Adapt. * sysdeps/unix/sysv/linux/alpha/bits/pthreadtypes.h (pthread_rwlock_t): Adapt. * sysdeps/unix/sysv/linux/powerpc/bits/pthreadtypes.h (pthread_rwlock_t): Adapt. * sysdeps/x86/bits/pthreadtypes.h (pthread_rwlock_t): Adapt. * nptl/nptl-printers.py (): Adapt. * nptl/nptl_lock_constants.pysym: Adapt. * nptl/test-rwlock-printers.py: Adapt. * nptl/test-rwlockattr-printers.c: Adapt. * nptl/test-rwlockattr-printers.py: Adapt. |
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Joseph Myers
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c35db50ff5 |
Update MicroBlaze localplt.data.
This patch updates the MicroBlaze localplt.data based on the results of a build with build-many-glibcs.py. This is simply an empirical update; quite possibly the port could be optimized to remove more local PLT entry usage. Tested (compilation tests) with build-many-glibcs.py. * sysdeps/unix/sysv/linux/microblaze/localplt.data (__pread64): Add libc.so PLT entry. (__tls_get_addr): Make ld.so PLT entry optional. |
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Joseph Myers
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30733525c6 |
Fix MIPS n64 readahead (bug 21026).
As noted in bug 20126, MIPS n64 uses an incorrect implementation of readahead intended for 32-bit systems. This patch adds a syscalls.list entry to fix this. An updated version of the consolidation patch <https://sourceware.org/ml/libc-alpha/2016-09/msg00527.html> could remove this syscalls.list entry again. Tested with compilation (only) for mips64; the nature of the syscall doesn't allow for a glibc test to detect this issue. [BZ #21026] * sysdeps/unix/sysv/linux/mips/mips64/n64/syscalls.list (readahead): New syscall entry. |
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Tulio Magno Quites Machado Filho
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e9a96ea1ac |
powerpc: Fix write-after-destroy in lock elision [BZ #20822]
The update of *adapt_count after the release of the lock causes a race condition when thread A unlocks, thread B continues and destroys the mutex, and thread A writes to *adapt_count. |
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Joseph Myers
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df19fdcfec |
Fix MIPS n32 lseek, lseek64 (bug 21019).
The lseek consolidation broke lseek64 for MIPS n32, so resulting in io/test-lfs failing with an incorrect return from ftello64. This configuration uses the lseek syscall with a 64-bit return value; as the C syscall macros return long, they cannot be used in this case and so an assembly implementation is needed; accordingly, this patch adds lseek64 back to syscalls.list for this configuration. lseek was also broken, truncating the result without checking for overflow. lseek however was already broken before the consolidation; it aliased lseek64 so would return an out-of-range value, resulting in architecturally undefined behavior in the caller if it tried to use a non-sign-extended value with a 32-bit instruction. This patch adds a custom lseek implementation in C for n32, which calls __lseek64 to get the 64-bit value then checks for overflow. Because the prior lseek breakage did not show in test results, and the lseek64 breakage showed only indirectly through tests of ftello64, test coverage was clearly inadequate. This patch extends io/test-lfs.c to test the lseek64 return value (at a point where it has already seeked over 2GB into a file), and then to test the lseek return value (with the latter's expectations depending on whether off_t is smaller than off64_t). Tested for mips64 n32. Also tested test-lfs for x86_64 and x86, where as expected it passes. [BZ #21019] * sysdeps/unix/sysv/linux/mips/mips64/n32/syscalls.list (lseek64): New syscall entry. * sysdeps/unix/sysv/linux/mips/mips64/n32/lseek.c: New file. * io/test-lfs.c (do_test): Test offset returned from lseek64 and lseek. |
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Joseph Myers
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58b587c1f8 |
Update copyright dates not handled by scripts/update-copyrights.
I've updated copyright dates in glibc for 2017. This is the patch for the changes not generated by scripts/update-copyrights and subsequent build / regeneration of generated files. Please remember to include 2017 in the dates for any new files added in future (which means updating any existing uncommitted patches you have that add new files to use the new copyright dates in them). * NEWS: Update copyright dates. * catgets/gencat.c (print_version): Likewise. * csu/version.c (banner): Likewise. * debug/catchsegv.sh: Likewise. * debug/pcprofiledump.c (print_version): Likewise. * debug/xtrace.sh (do_version): Likewise. * elf/ldconfig.c (print_version): Likewise. * elf/ldd.bash.in: Likewise. * elf/pldd.c (print_version): Likewise. * elf/sotruss.sh: Likewise. * elf/sprof.c (print_version): Likewise. * iconv/iconv_prog.c (print_version): Likewise. * iconv/iconvconfig.c (print_version): Likewise. * locale/programs/locale.c (print_version): Likewise. * locale/programs/localedef.c (print_version): Likewise. * login/programs/pt_chown.c (print_version): Likewise. * malloc/memusage.sh (do_version): Likewise. * malloc/memusagestat.c (print_version): Likewise. * malloc/mtrace.pl: Likewise. * manual/libc.texinfo: Likewise. * nptl/version.c (banner): Likewise. * nscd/nscd.c (print_version): Likewise. * nss/getent.c (print_version): Likewise. * nss/makedb.c (print_version): Likewise. * posix/getconf.c (main): Likewise. * scripts/test-installation.pl: Likewise. * sysdeps/unix/sysv/linux/lddlibc4.c (main): Likewise. |
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Joseph Myers
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bfff8b1bec | Update copyright dates with scripts/update-copyrights. | |
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Torvald Riegel
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ed19993b5b |
New condvar implementation that provides stronger ordering guarantees.
This is a new implementation for condition variables, required after http://austingroupbugs.net/view.php?id=609 to fix bug 13165. In essence, we need to be stricter in which waiters a signal or broadcast is required to wake up; this couldn't be solved using the old algorithm. ISO C++ made a similar clarification, so this also fixes a bug in current libstdc++, for example. We can't use the old algorithm anymore because futexes do not guarantee to wake in FIFO order. Thus, when we wake, we can't simply let any waiter grab a signal, but we need to ensure that one of the waiters happening before the signal is woken up. This is something the previous algorithm violated (see bug 13165). There's another issue specific to condvars: ABA issues on the underlying futexes. Unlike mutexes that have just three states, or semaphores that have no tokens or a limited number of them, the state of a condvar is the *order* of the waiters. A waiter on a semaphore can grab a token whenever one is available; a condvar waiter must only consume a signal if it is eligible to do so as determined by the relative order of the waiter and the signal. Therefore, this new algorithm maintains two groups of waiters: Those eligible to consume signals (G1), and those that have to wait until previous waiters have consumed signals (G2). Once G1 is empty, G2 becomes the new G1. 64b counters are used to avoid ABA issues. This condvar doesn't yet use a requeue optimization (ie, on a broadcast, waking just one thread and requeueing all others on the futex of the mutex supplied by the program). I don't think doing the requeue is necessarily the right approach (but I haven't done real measurements yet): * If a program expects to wake many threads at the same time and make that scalable, a condvar isn't great anyway because of how it requires waiters to operate mutually exclusive (due to the mutex usage). Thus, a thundering herd problem is a scalability problem with or without the optimization. Using something like a semaphore might be more appropriate in such a case. * The scalability problem is actually at the mutex side; the condvar could help (and it tries to with the requeue optimization), but it should be the mutex who decides how that is done, and whether it is done at all. * Forcing all but one waiter into the kernel-side wait queue of the mutex prevents/avoids the use of lock elision on the mutex. Thus, it prevents the only cure against the underlying scalability problem inherent to condvars. * If condvars use short critical sections (ie, hold the mutex just to check a binary flag or such), which they should do ideally, then forcing all those waiter to proceed serially with kernel-based hand-off (ie, futex ops in the mutex' contended state, via the futex wait queues) will be less efficient than just letting a scalable mutex implementation take care of it. Our current mutex impl doesn't employ spinning at all, but if critical sections are short, spinning can be much better. * Doing the requeue stuff requires all waiters to always drive the mutex into the contended state. This leads to each waiter having to call futex_wake after lock release, even if this wouldn't be necessary. [BZ #13165] * nptl/pthread_cond_broadcast.c (__pthread_cond_broadcast): Rewrite to use new algorithm. * nptl/pthread_cond_destroy.c (__pthread_cond_destroy): Likewise. * nptl/pthread_cond_init.c (__pthread_cond_init): Likewise. * nptl/pthread_cond_signal.c (__pthread_cond_signal): Likewise. * nptl/pthread_cond_wait.c (__pthread_cond_wait): Likewise. (__pthread_cond_timedwait): Move here from pthread_cond_timedwait.c. (__condvar_confirm_wakeup, __condvar_cancel_waiting, __condvar_cleanup_waiting, __condvar_dec_grefs, __pthread_cond_wait_common): New. (__condvar_cleanup): Remove. * npt/pthread_condattr_getclock.c (pthread_condattr_getclock): Adapt. * npt/pthread_condattr_setclock.c (pthread_condattr_setclock): Likewise. * npt/pthread_condattr_getpshared.c (pthread_condattr_getpshared): Likewise. * npt/pthread_condattr_init.c (pthread_condattr_init): Likewise. * nptl/tst-cond1.c: Add comment. * nptl/tst-cond20.c (do_test): Adapt. * nptl/tst-cond22.c (do_test): Likewise. * sysdeps/aarch64/nptl/bits/pthreadtypes.h (pthread_cond_t): Adapt structure. * sysdeps/arm/nptl/bits/pthreadtypes.h (pthread_cond_t): Likewise. * sysdeps/ia64/nptl/bits/pthreadtypes.h (pthread_cond_t): Likewise. * sysdeps/m68k/nptl/bits/pthreadtypes.h (pthread_cond_t): Likewise. * sysdeps/microblaze/nptl/bits/pthreadtypes.h (pthread_cond_t): Likewise. * sysdeps/mips/nptl/bits/pthreadtypes.h (pthread_cond_t): Likewise. * sysdeps/nios2/nptl/bits/pthreadtypes.h (pthread_cond_t): Likewise. * sysdeps/s390/nptl/bits/pthreadtypes.h (pthread_cond_t): Likewise. * sysdeps/sh/nptl/bits/pthreadtypes.h (pthread_cond_t): Likewise. * sysdeps/tile/nptl/bits/pthreadtypes.h (pthread_cond_t): Likewise. * sysdeps/unix/sysv/linux/alpha/bits/pthreadtypes.h (pthread_cond_t): Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/pthreadtypes.h (pthread_cond_t): Likewise. * sysdeps/x86/bits/pthreadtypes.h (pthread_cond_t): Likewise. * sysdeps/nptl/internaltypes.h (COND_NWAITERS_SHIFT): Remove. (COND_CLOCK_BITS): Adapt. * sysdeps/nptl/pthread.h (PTHREAD_COND_INITIALIZER): Adapt. * nptl/pthreadP.h (__PTHREAD_COND_CLOCK_MONOTONIC_MASK, __PTHREAD_COND_SHARED_MASK): New. * nptl/nptl-printers.py (CLOCK_IDS): Remove. (ConditionVariablePrinter, ConditionVariableAttributesPrinter): Adapt. * nptl/nptl_lock_constants.pysym: Adapt. * nptl/test-cond-printers.py: Adapt. * sysdeps/unix/sysv/linux/hppa/internaltypes.h (cond_compat_clear, cond_compat_check_and_clear): Adapt. * sysdeps/unix/sysv/linux/hppa/pthread_cond_timedwait.c: Remove file ... * sysdeps/unix/sysv/linux/hppa/pthread_cond_wait.c (__pthread_cond_timedwait): ... and move here. * nptl/DESIGN-condvar.txt: Remove file. * nptl/lowlevelcond.sym: Likewise. * nptl/pthread_cond_timedwait.c: Likewise. * sysdeps/unix/sysv/linux/i386/i486/pthread_cond_broadcast.S: Likewise. * sysdeps/unix/sysv/linux/i386/i486/pthread_cond_signal.S: Likewise. * sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S: Likewise. * sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S: Likewise. * sysdeps/unix/sysv/linux/i386/i586/pthread_cond_broadcast.S: Likewise. * sysdeps/unix/sysv/linux/i386/i586/pthread_cond_signal.S: Likewise. * sysdeps/unix/sysv/linux/i386/i586/pthread_cond_timedwait.S: Likewise. * sysdeps/unix/sysv/linux/i386/i586/pthread_cond_wait.S: Likewise. * sysdeps/unix/sysv/linux/i386/i686/pthread_cond_broadcast.S: Likewise. * sysdeps/unix/sysv/linux/i386/i686/pthread_cond_signal.S: Likewise. * sysdeps/unix/sysv/linux/i386/i686/pthread_cond_timedwait.S: Likewise. * sysdeps/unix/sysv/linux/i386/i686/pthread_cond_wait.S: Likewise. * sysdeps/unix/sysv/linux/x86_64/pthread_cond_broadcast.S: Likewise. * sysdeps/unix/sysv/linux/x86_64/pthread_cond_signal.S: Likewise. * sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S: Likewise. * sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S: Likewise. |
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Joseph Myers
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423c2b9d08 |
Add fromfp functions.
TS 18661-1 defines fromfp functions (fromfp, fromfpx, ufromfp, ufromfpx, and float and long double variants) to convert from floating-point to an integer type with any signedness and any given width up to that of intmax_t, in any of the five IEEE rounding modes (the usual four for binary floating point, plus rounding to nearest with ties rounding away from zero), with control of whether in-range non-integer values should result in the "inexact" exception being raised. This patch implements these functions for glibc. These implementations are (apart from raising exceptions) pure integer implementations; it's entirely possible optimized versions could be devised for some architectures. A common math/fromfp.h header provides various common helper code that can readily be shared between the implementations for different types. For each type, the bulk of the implementation is also shared between the four functions, with wrappers that define UNSIGNED and INEXACT macros appropriately before including the main implementation. As the functions return intmax_t and uintmax_t without math.h being allowed to expose those typedef names, they are declared using __intmax_t and __uintmax_t as obtained from <bits/types.h>. The FP_INT_* rounding direction macros are defined as ascending integers in the order the names are listed in the TS; I see no significant value in allowing architectures to vary the values of them. The libm-test machinery is duly adapted to handle unsigned int arguments, and intmax_t and uintmax_t results. Because each test input is generally tested for four functions, five rounding modes and several different widths, the libm-test.inc additions are very large. Thus, the diffs in the body of this message exclude the libm-test.inc changes, with the full patch being attached gzipped. The bulk of the new tests were generated (expanded from a test input plus rounding results and information about where it lies in the relevant interval between integers, to libm-test tests for all relevant combinations of function, rounding direction and width) by a script that's included in the patch as math/gen-fromfp-tests.py (input data math/gen-fromfp-tests-inputs); as an ad hoc script that's not really expected to be rerun, it's not very polished, but it's at least plausibly useful for adding any further tests for these functions in future. I may split the libm-test tests up by function in future (so both libm-test.inc and auto-libm-test-out are split into separate files, and the tests for each function are also built and run separately), but not for 2.25. For no obvious reason, adding tgmath tests for the new functions resulted in -Wuninitialized errors from test-tgmath.c about the variable i being used uninitialized. Those errors were correct - the variable is read by the frexp version in test-tgmath.c (where real frexp would write through that pointer instead of reading it) - but I don't know why this patch would result in the pre-existing issue being newly detected. The patch initializes the variable to avoid those errors. With these changes, glibc 2.25 should have all the library features from TS 18661-1 other than the functions that round result to narrower type (and constant rounding directions, but I'm considering those mainly a compiler feature not a library one). Tested for x86_64, x86, mips64 and powerpc. * math/bits/mathcalls.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (fromfp): New declaration. [__GLIBC_USE (IEC_60559_BFP_EXT)] (fromfpx): Likewise. [__GLIBC_USE (IEC_60559_BFP_EXT)] (ufromfp): Likewise. [__GLIBC_USE (IEC_60559_BFP_EXT)] (ufromfpx): Likewise. * math/tgmath.h (__TGMATH_TERNARY_FIRST_REAL_RET_ONLY): New macro. [__GLIBC_USE (IEC_60559_BFP_EXT)] (fromfp): Likewise. [__GLIBC_USE (IEC_60559_BFP_EXT)] (ufromfp): Likewise. [__GLIBC_USE (IEC_60559_BFP_EXT)] (fromfpx): Likewise. [__GLIBC_USE (IEC_60559_BFP_EXT)] (ufromfpx): Likewise. * math/math.h: Include <bits/types.h>. [__GLIBC_USE (IEC_60559_BFP_EXT)] (FP_INT_UPWARD): New enum constant and macro. (FP_INT_DOWNWARD): Likewise. (FP_INT_TOWARDZERO): Likewise. (FP_INT_TONEARESTFROMZERO): Likewise. (FP_INT_TONEAREST): Likewise. * math/Versions (fromfp): New libm symbol at version GLIBC_2.25. (fromfpf): Likewise. (fromfpl): Likewise. (ufromfp): Likewise. (ufromfpf): Likewise. (ufromfpl): Likewise. (fromfpx): Likewise. (fromfpxf): Likewise. (fromfpxl): Likewise. (ufromfpx): Likewise. (ufromfpxf): Likewise. (ufromfpxl): Likewise. * math/Makefile (libm-calls): Add s_fromfpF, s_ufromfpF, s_fromfpxF and s_ufromfpxF. * math/gen-fromfp-tests.py: New file. * math/gen-fromfp-tests-inputs: Likewise. * math/libm-test.inc: Include <stdint.h> (check_intmax_t): New function. (check_uintmax_t): Likewise. (struct test_fiu_M_data): New type. (struct test_fiu_U_data): Likewise. (RUN_TEST_fiu_M): New macro. (RUN_TEST_LOOP_fiu_M): Likewise. (RUN_TEST_fiu_U): Likewise. (RUN_TEST_LOOP_fiu_U): Likewise. (fromfp_test_data): New array. (fromfp_test): New function. (fromfpx_test_data): New array. (fromfpx_test): New function. (ufromfp_test_data): New array. (ufromfp_test): New function. (ufromfpx_test_data): New array. (ufromfpx_test): New function. (main): Call fromfp_test, fromfpx_test, ufromfp_test and ufromfpx_test. * math/gen-libm-test.pl (parse_args): Handle u, M and U descriptor characters. * math/test-tgmath-ret.c: Include <stdint.h>. (rm): New variable. (width): Likewise. (CHECK_RET_CONST_TYPE): Take extra arguments and pass them to called function. (CHECK_RET_CONST_FLOAT): Take extra arguments and pass them to CHECK_RET_CONST_TYPE. (CHECK_RET_CONST_DOUBLE): Likewise. (CHECK_RET_CONST_LDOUBLE): Likewise. (CHECK_RET_CONST): Take extra arguments and pass them to calls macros. (fromfp): New CHECK_RET_CONST call. (ufromfp): Likewise. (fromfpx): Likewise. (ufromfpx): Likewise. (do_test): Call check_return_fromfp, check_return_ufromfp, check_return_fromfpx and check_return_ufromfpx. * math/test-tgmath.c: Include <stdint.h> (NCALLS): Increase to 138. (F(compile_test)): Initialize i. Call fromfp functions. (F(fromfp)): New function. (F(fromfpx)): Likewise. (F(ufromfp)): Likewise. (F(ufromfpx)): Likewise. * manual/arith.texi (Rounding Functions): Document FP_INT_UPWARD, FP_INT_DOWNWARD, FP_INT_TOWARDZERO, FP_INT_TONEARESTFROMZERO, FP_INT_TONEAREST, fromfp, fromfpf, fromfpl, ufromfp, ufromfpf, ufromfpl, fromfpx, fromfpxf, fromfpxl, ufromfpx, ufromfpxf and ufromfpxl. * manual/libm-err-tab.pl (@all_functions): Add fromfp, fromfpx, ufromfp and ufromfpx. * math/fromfp.h: New file. * sysdeps/ieee754/dbl-64/s_fromfp.c: Likewise. * sysdeps/ieee754/dbl-64/s_fromfp_main.c: Likewise. * sysdeps/ieee754/dbl-64/s_fromfpx.c: Likewise. * sysdeps/ieee754/dbl-64/s_ufromfp.c: Likewise. * sysdeps/ieee754/dbl-64/s_ufromfpx.c: Likewise. * sysdeps/ieee754/flt-32/s_fromfpf.c: Likewise. * sysdeps/ieee754/flt-32/s_fromfpf_main.c: Likewise. * sysdeps/ieee754/flt-32/s_fromfpxf.c: Likewise. * sysdeps/ieee754/flt-32/s_ufromfpf.c: Likewise. * sysdeps/ieee754/flt-32/s_ufromfpxf.c: Likewise. * sysdeps/ieee754/ldbl-128/s_fromfpl.c: Likewise. * sysdeps/ieee754/ldbl-128/s_fromfpl_main.c: Likewise. * sysdeps/ieee754/ldbl-128/s_fromfpxl.c: Likewise. * sysdeps/ieee754/ldbl-128/s_ufromfpl.c: Likewise. * sysdeps/ieee754/ldbl-128/s_ufromfpxl.c: Likewise. * sysdeps/ieee754/ldbl-128ibm/s_fromfpl.c: Likewise. * sysdeps/ieee754/ldbl-128ibm/s_fromfpl_main.c: Likewise. * sysdeps/ieee754/ldbl-128ibm/s_fromfpxl.c: Likewise. * sysdeps/ieee754/ldbl-128ibm/s_ufromfpl.c: Likewise. * sysdeps/ieee754/ldbl-128ibm/s_ufromfpxl.c: Likewise. * sysdeps/ieee754/ldbl-96/s_fromfpl.c: Likewise. * sysdeps/ieee754/ldbl-96/s_fromfpl_main.c: Likewise. * sysdeps/ieee754/ldbl-96/s_fromfpxl.c: Likewise. * sysdeps/ieee754/ldbl-96/s_ufromfpl.c: Likewise. * sysdeps/ieee754/ldbl-96/s_ufromfpxl.c: Likewise. * sysdeps/ieee754/ldbl-opt/Makefile (libnldbl-calls): Add fromfp, ufromfp, fromfpx and ufromfpx. (CFLAGS-nldbl-fromfp.c): New variable. (CFLAGS-nldbl-fromfpx.c): Likewise. (CFLAGS-nldbl-ufromfp.c): Likewise. (CFLAGS-nldbl-ufromfpx.c): Likewise. * sysdeps/ieee754/ldbl-opt/nldbl-compat.h: Include <stdint.h>. * sysdeps/ieee754/ldbl-opt/nldbl-fromfp.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-fromfpx.c: Likewise. * sysdeps/ieee754/ldbl-opt/nldbl-ufromfp.c: Likewise. * sysdeps/ieee754/ldbl-opt/nldbl-ufromfpx.c: Likewise. * sysdeps/nacl/libm.abilist: Update. * sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise. |
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Adhemerval Zanella
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50a6b4e0e4 |
Use shmget syscall for linux implementation
this patch add a direct call to shmget syscall if it is supported by kernel features. Checked on x86_64, i686, powerpc64le, aarch64, and armhf. * sysdeps/unix/sysv/linux/alpha/syscalls.list (shmget): Remove. * sysdeps/unix/sysv/linux/arm/syscalls.list (shmget): Likewise. * sysdeps/unix/sysv/linux/generic/syscalls.list (shmget): Likewise. * sysdeps/unix/sysv/linux/hppa/syscalls.list (shmget): Likewise. * sysdeps/unix/sysv/linux/ia64/syscalls.list (shmget): Likewise. * sysdeps/unix/sysv/linux/microblaze/syscalls.list (shmget): Likewise. * sysdeps/unix/sysv/linux/mips/mips64/syscalls.list (shmget): Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list (shmget): Likewise. * sysdeps/unix/sysv/linux/x86_64/syscalls.list (shmget): Likewise. * sysdeps/unix/sysv/linux/shmget.c (shmget): Use shmget syscall if it is defined. |
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Adhemerval Zanella
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214f017fdf |
Use shmdt syscall for linux implementation
this patch add a direct call to shmdt syscall if it is supported by kernel features. hecked on x86_64, i686, powerpc64le, aarch64, and armhf. * sysdeps/unix/sysv/linux/alpha/syscalls.list (shmdt): Remove. * sysdeps/unix/sysv/linux/arm/syscalls.list (shmdt): Likewise. * sysdeps/unix/sysv/linux/generic/syscalls.list (shmdt): Likewise. * sysdeps/unix/sysv/linux/hppa/syscalls.list (shmdt): Likewise. * sysdeps/unix/sysv/linux/ia64/syscalls.list (shmdt): Likewise. * sysdeps/unix/sysv/linux/microblaze/syscalls.list (shmdt): Likewise. * sysdeps/unix/sysv/linux/mips/mips64/syscalls.list (shmdt): Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list (shmdt): Likewise. * sysdeps/unix/sysv/linux/x86_64/syscalls.list (shmdt): Likewise. * sysdeps/unix/sysv/linux/shmdt.c (shmdt): Use shmdt syscall if it is defined. |
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Adhemerval Zanella
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e01f79e412 |
Consolidate Linux shmctl implementation
This patch consolidates the shmctl Linux implementation in only one default file, sysdeps/unix/sysv/linux/shmctl.c. If tries to use the direct syscall if it is supported, otherwise will use the old ipc multiplex mechanism. The patch also simplify header inclusion and reorganize internal compat symbol to be built only if old ipc is defined. Checked on x86_64, i686, powerpc64le, aarch64, and armhf. * sysdeps/unix/sysv/linux/alpha/Makefile (sysdeps_routines): Remove oldshmctl. * sysdeps/unix/sysv/linux/alpha/syscalls.list (shmctl): Remove. * sysdeps/unix/sysv/linux/arm/syscalls.list (shmctl): Likewise. * sysdeps/unix/sysv/linux/generic/syscalls.list (shmctl): Likewise. * sysdeps/unix/sysv/linux/hppa/syscalls.list (shmctl): Likewise. * sysdeps/unix/sysv/linux/ia64/syscalls.list (shmctl): Likewise. * sysdeps/unix/sysv/linux/microblaze/syscalls.list (shmctl): Likewise. * sysdeps/unix/sysv/linux/mips/mips64/syscalls.list (shmctl): Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list (shmctl): Likewise. * sysdeps/unix/sysv/linux/x86_64/syscalls.list (shmctl): Likewise. * sysdeps/unix/sysv/linux/alpha/shmctl.c: Remove file. * sysdeps/unix/sysv/linux/arm/shmctl.c: Likewise. * sysdeps/unix/sysv/linux/microblaze/shmctl.c: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/shmctl.c: Use default implementation. * sysdeps/unix/sysv/linux/shmctl.c (__new_shmctl): Use shmctl syscall if it is defined. |
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Adhemerval Zanella
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8232e7d209 |
Use shmat syscall for Linux implementation
This patch add a direct call to shmat syscall if it is supported by kernel features. Checked on x86_64, i686, powerpc64le, aarch64, and armhf. * sysdeps/unix/sysv/linux/alpha/syscalls.list (shmat): Remove. * sysdeps/unix/sysv/linux/arm/syscalls.list (shmat): Likewise. * sysdeps/unix/sysv/linux/generic/syscalls.list (shmat): Likewise. * sysdeps/unix/sysv/linux/hppa/syscalls.list (shmat): Likewise. * sysdeps/unix/sysv/linux/ia64/syscalls.list (shmat): Likewise. * sysdeps/unix/sysv/linux/microblaze/syscalls.list (shmat): Likewise. * sysdeps/unix/sysv/linux/mips/mips64/syscalls.list (shmat): Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list (shmat): Likewise. * sysdeps/unix/sysv/linux/x86_64/syscalls.list (shmat): Likewise. * sysdeps/unix/sysv/linux/alpha/kernel-features.h (__NR_shmat): Define to __NR_osf_shmat. * sysdeps/unix/sysv/linux/shmat.c (shmat): Use shmat syscall if it is defined. |
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Adhemerval Zanella
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38cee35b0c |
Consolidate Linux semtimedop implementation
This patch consolidates the semtimedop Linux implementation in only one default file, sysdeps/unix/sysv/linux/semtimedop.c. If tries to use the direct syscall if it is supported, otherwise will use the old ipc multiplex mechanism. Checked on x86_64, i686, powerpc64le, aarch64, and armhf. * sysdeps/unix/sysv/linux/alpha/syscalls.list (semtimedop): Remove. * sysdeps/unix/sysv/linux/arm/syscalls.list (semtimedop): Likewise. * sysdeps/unix/sysv/linux/generic/syscalls.list (semtimedop): Likewise. * sysdeps/unix/sysv/linux/hppa/syscalls.list (semtimedop): Likewise. * sysdeps/unix/sysv/linux/ia64/syscalls.list (semtimedop): Likewise. * sysdeps/unix/sysv/linux/microblaze/syscalls.list (semtimedop): Likewise. * sysdeps/unix/sysv/linux/mips/mips64/syscalls.list (semtimedop): Likewise. * sysdeps/unix/sysv/linux/x86_64/syscalls.list (semtimedop): Likewise. * sysdeps/unix/sysv/linux/m68k/semtimedop.S: Remove file. * sysdeps/unix/sysv/linux/s390/semtimedop.c: Reorganize headers and add a comment about s390 syscall difference from default one. * sysdeps/unix/sysv/linux/semtimedop.c (semtimedop): Use semtimedop syscall if it is defined. |
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Adhemerval Zanella
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0f97184020 |
Use semop syscall for Linux implementation
This patch add a direct call to semop syscall if it is supported by kernel headers. Checked on x86_64, i686, powerpc64le, aarch64, and armhf. * sysdeps/unix/sysv/linux/alpha/syscalls.list (semop): Remove. * sysdeps/unix/sysv/linux/arm/syscalls.list (semop): Likewise. * sysdeps/unix/sysv/linux/generic/syscalls.list (semop): Likewise. * sysdeps/unix/sysv/linux/hppa/syscalls.list (semop): Likewise. * sysdeps/unix/sysv/linux/ia64/syscalls.list (semop): Likewise. * sysdeps/unix/sysv/linux/microblaze/syscalls.list (semop): Likewise. * sysdeps/unix/sysv/linux/mips/mips64/syscalls.list (semop): Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list (semop): Likewise. * sysdeps/unix/sysv/linux/x86_64/syscalls.list (semop): Likewise. * sysdeps/unix/sysv/linux/semop.c (semop): Use semop syscall if it is defined. |
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Adhemerval Zanella
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d29f6bcdcc |
Use semget syscall for Linux implementation
This patch add a direct call to semget syscall if it is supported by kernel features. hecked on x86_64, i686, powerpc64le, aarch64, and armhf. * sysdeps/unix/sysv/linux/alpha/syscalls.list (semget): Remove. * sysdeps/unix/sysv/linux/arm/syscalls.list (semget): Likewise. * sysdeps/unix/sysv/linux/generic/syscalls.list (semget): Likewise. * sysdeps/unix/sysv/linux/hppa/syscalls.list (semget): Likewise. * sysdeps/unix/sysv/linux/ia64/syscalls.list (semget): Likewise. * sysdeps/unix/sysv/linux/microblaze/syscalls.list (semget): Likewise. * sysdeps/unix/sysv/linux/mips/mips64/syscalls.list (semget): Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list (semget): Likewise. * sysdeps/unix/sysv/linux/x86_64/syscalls.list (semget): Likewise. * sysdeps/unix/sysv/linux/semget.c (semget): Use semget syscall if it is defined. |
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Adhemerval Zanella
|
40c0a78068 |
Consolidate Linux semctl implementation
This patch consolidates the semctl Linux implementation in only one default file, sysdeps/unix/sysv/linux/semctl.c. If tries to use the direct syscall if it is supported, otherwise will use the old ipc multiplex mechanism. The patch also simplify header inclusion and reorganize internal compat symbol to be built only if old ipc is defined. Checked on x86_64, i686, powerpc64le, aarch64, and armhf. * sysdeps/unix/sysv/linux/alpha/Makefile (sysdeps_routines): Remove oldsemctl. * sysdeps/unix/sysv/linux/alpha/semctl.c: Remove file. * sysdeps/unix/sysv/linux/arm/semctl.c: Likewise. * sysdeps/unix/sysv/linux/microblaze/semctl.c: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/semctl.c: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/semctl.c: Use defaulf implementation. * sysdeps/unix/sysv/linux/semctl.c (__new_semctl): Use semctl syscall if it is defined. * sysdeps/unix/sysv/linux/generic/syscalls.list (semctl): Remove. * sysdeps/unix/sysv/linux/alpha/syscalls.list (semctl): Likewise. * sysdeps/unix/sysv/linux/hppa/syscalls.list (semctl): Likewise. * sysdeps/unix/sysv/linux/ia64/syscalls.list (semctl): Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list (semctl): Likewise. * sysdeps/unix/sysv/linux/x86_64/syscalls.list (semctl): Likewise. |
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Adhemerval Zanella
|
2182a151a7 |
Use msgget syscall for Linux implementation
This patch add a direct call to msgget syscall if it is supported by kernel features. hecked on x86_64, i686, powerpc64le, aarch64, and armhf. * sysdeps/unix/sysv/linux/alpha/syscalls.list (msgget): Remove. * sysdeps/unix/sysv/linux/arm/syscalls.list (msgget): Likewise. * sysdeps/unix/sysv/linux/generic/syscalls.list (msgget): Likewise. * sysdeps/unix/sysv/linux/hppa/syscalls.list (msgget): Likewise. * sysdeps/unix/sysv/linux/ia64/syscalls.list (msgget): Likewise. * sysdeps/unix/sysv/linux/microblaze/syscalls.list (msgget): Likewise. * sysdeps/unix/sysv/linux/mips/mips64/syscalls.list (msgget): Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list (msgget): Likewise. * sysdeps/unix/sysv/linux/x86_64/syscalls.list (msgget): Likewise. * sysdeps/unix/sysv/linux/msgget.c (msgget): Use msgget syscall if define. |
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Adhemerval Zanella
|
692fe43ae2 |
Use msgsnd syscall for Linux implementation
This patch add a direct call to msgsnd syscall if it is supported by kernel features. hecked on x86_64, i686, powerpc64le, aarch64, and armhf. * sysdeps/unix/sysv/linux/alpha/syscalls.list (msgsnd): Remove. * sysdeps/unix/sysv/linux/arm/syscalls.list (msgsnd): Likewise. * sysdeps/unix/sysv/linux/generic/syscalls.list (msgsnd): Likewise. * sysdeps/unix/sysv/linux/hppa/syscalls.list (msgsnd): Likewise. * sysdeps/unix/sysv/linux/ia64/syscalls.list (msgsnd): Likewise. * sysdeps/unix/sysv/linux/microblaze/syscalls.list (msgsnd): Likewise. * sysdeps/unix/sysv/linux/mips/mips64/syscalls.list (msgsnd): Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list (msgsnd): Likewise. * sysdeps/unix/sysv/linux/x86_64/syscalls.list (msgsnd): Likewise. * sysdeps/unix/sysv/linux/msgsnd.c (__libc_msgsnd): Use msgsnd syscall if defined. |
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Adhemerval Zanella
|
dee23189ae |
Consolidate Linux msgrcv implementation
This patch consolidates the msgrcv Linux implementation in only one default file, sysdeps/unix/sysv/linux/msgrcv.c. If tries to use the direct syscall if it is supported, otherwise will use the old ipc multiplex mechanism. Checked on x86_64, i686, powerpc64le, aarch64, and armhf. * sysdeps/unix/sysv/linux/alpha/syscalls.list (msgctl): Remove. * sysdeps/unix/sysv/linux/arm/syscalls.list (msgctl): Likewise. * sysdeps/unix/sysv/linux/generic/syscalls.list (msgctl): Likewise. * sysdeps/unix/sysv/linux/hppa/syscalls.list (msgctl): Likewise. * sysdeps/unix/sysv/linux/ia64/syscalls.list (msgctl): Likewise. * sysdeps/unix/sysv/linux/microblaze/syscalls.list (msgctl): Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list (msgctl): Likewise. * sysdeps/unix/sysv/linux/x86_64/syscalls.list (msgctl): Likewise, * sysdeps/unix/sysv/linux/mips/mips64/syscalls.list (msgctl): Likewise. * sysdeps/unix/sysv/linux/msgrcv.c (__libc_msgrcv): Use msgrcv syscall if defined. * sysdeps/unix/sysv/linux/sparc/sparc64/msgrcv.c: Remove file. |
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Adhemerval Zanella
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356c0aabd0 |
Consolidate Linux msgctl implementation
This patch consolidates the msgctl Linux implementation in only one default file, sysdeps/unix/sysv/linux/msgctl.c. If tries to use the direct syscall if it is supported, otherwise will use the old ipc multiplex mechanism. The patch also simplify header inclusion and reorganize internal compat symbol to be built only if old ipc is defined. Checked on x86_64, i686, powerpc64le, aarch64, and armhf. * sysdeps/unix/sysv/linux/alpha/Makefile (sysdeps_routines): Remove oldmsgctl. * sysdeps/unix/sysv/linux/alpha/msgctl.c: Remove file. * sysdeps/unix/sysv/linux/arm/msgctl.c: Likewise. * sysdeps/unix/sysv/linux/microblaze/msgctl.c: Likewise. * sysdeps/unix/sysv/linux/alpha/syscalls.list (oldmsgctl): Remove. * sysdeps/unix/sysv/linux/generic/syscalls.list (msgctl): Likewise. * sysdeps/unix/sysv/linux/hppa/syscalls.list (msgctl): Likewise. * sysdeps/unix/sysv/linux/ia64/syscalls.list (msgctl): Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list (msgctl): Likewise. * sysdeps/unix/sysv/linux/x86_64/syscalls.list (msgctl): Likewise. * sysdeps/unix/sysv/linux/mips/mips64/msgctl.c: Use default implementation. * sysdeps/unix/sysv/linux/msgctl.c (__new_msgctl): Use msgctl syscall if defined. |
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Adhemerval Zanella
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1e5834c38a |
Refactor Linux ipc_priv header
Some architectures support the old-style IPC and require IPC_64 equal to 0x100 to be passed along SysV IPC syscalls, while new architectures should default to new IPC version (without the flags being set). This patch refactor current ipc_priv.h Linux headers in two directions: - Remove cross platform references (for instance alpha including powerpc definition) and add required definition for each required port. The idea is to avoid tie one architecture definition with another and make platform change independent. - Move all common definitions (the ipc syscall commands) on a common header, ipc_ops.h. * sysdeps/unix/sysv/linux/aarch64/ipc_priv.h: New file. * sysdeps/unix/sysv/linux/alpha/ipc_priv.h: Avoid included other arch definition and define its own. * sysdeps/unix/sysv/linux/ipc_ops.h: New file. * sysdeps/unix/sysv/linux/x86_64/ipc_priv.h: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/ipc_priv.h: Likewise. * sysdeps/unix/sysv/linux/mips/ipc_priv.h: Remove file. * sysdeps/unix/sysv/linux/mips/mips64/ipc_priv.h: New file. * sysdeps/unix/sysv/linux/ipc_priv.h: Move ipc syscall operation definitions to common header. * sysdeps/unix/sysv/linux/powerpc/ipc_priv.h: Use common syscall operation from ipc_ops.h. |
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Adhemerval Zanella
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63719cf1e3 |
Add __ASSUME_DIRECT_SYSVIPC_SYSCALL for Linux
On current minimum supported kernels, the SysV IPC on Linux is provided
by either the ipc syscalls or correspondent wire syscalls. Also, for
architectures that supports wire syscalls all syscalls are supported
in a set (msgct, msgrcv, msgsnd, msgget, semctl, semget, semop, semtimedop,
shmctl, shmat, shmget, shmdt).
The architectures that only supports ipc syscall are:
- i386, m68k, microblaze, mips32, powerpc (powerpc32, powerpc64, and
powerpc64le), s390 (32 and 64 bits), sh, sparc32, and sparc64.
And the architectures that only supports wired syscalls are:
- aarch64, alpha, hppa, ia64, mips64, mips64n32, nios2, tile
(tilepro, tilegx, and tilegx64), and x86_64
Also arm is the only one that supports both wire syscalls and the
ipc, although the ipc one is deprecated.
This patch adds a new define, __ASSUME_DIRECT_SYSVIPC_SYSCALL, that wired
syscalls are supported on the system and the general idea is to use
it where possible.
I also checked the syscall table for all architectures on Linux 4.9
and there is no change on described support for Linux 2.6.32/3.2.
* sysdeps/unix/sysv/linux/kernel-features.h
(__ASSUME_DIRECT_SYSVIPC_SYSCALL): New define.
* sysdeps/unix/sysv/linux/i386/kernel-features.h
(__ASSUME_DIRECT_SYSVIPC_SYSCALL): Undef.
* sysdeps/unix/sysv/linux/m68k/kernel-features.h
(__ASSUME_DIRECT_SYSVIPC_SYSCALL): Likewise.
* sysdeps/unix/sysv/linux/mips/kernel-features.h
(__ASSUME_DIRECT_SYSVIPC_SYSCALL): Likewise.
* sysdeps/unix/sysv/linux/powerpc/kernel-features.h
(__ASSUME_DIRECT_SYSVIPC_SYSCALL): Likewise.
* sysdeps/unix/sysv/linux/s390/kernel-features.h
(__ASSUME_DIRECT_SYSVIPC_SYSCALL): Likewise.
* sysdeps/unix/sysv/linux/sh/kernel-features.h
(__ASSUME_DIRECT_SYSVIPC_SYSCALL): Likewise.
* sysdeps/unix/sysv/linux/sparc/kernel-features.h
(__ASSUME_DIRECT_SYSVIPC_SYSCALL): Likewise.
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Nick Alcock
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2e6c45c59b |
Do not stack-protect sigreturn stubs [BZ #7065]
These are called from the kernel with the stack at a carefully- chosen location so that the stack frame can be restored: they must not move the stack pointer lest garbage be restored into the registers. We explicitly inhibit protection for SPARC and for signal/sigreturn.c: other arches either define their sigreturn stubs in .S files, or (i386, x86_64, mips) use macros expanding to top-level asm blocks and explicit labels in the text section to mock up a "function" without telling the compiler that one is there at all. |
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Nick Alcock
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de6591238b |
Do not stack-protect ifunc resolvers [BZ #7065]
When dynamically linking, ifunc resolvers are called before TLS is
initialized, so they cannot be safely stack-protected.
We avoid disabling stack-protection on large numbers of files by
using __attribute__ ((__optimize__ ("-fno-stack-protector")))
to turn it off just for the resolvers themselves. (We provide
the attribute even when statically linking, because we will later
use it elsewhere too.)
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Wilco Dijkstra
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5625f666ce |
This patch cleans up the strsep implementation and improves performance.
Currently strsep calls strpbrk is is now a veneer to strcspn. Calling strcspn directly is faster. Since it handles a delimiter string of size 1 as a special case, this is not needed in strsep itself. Although this means there is a slightly higher overhead if the delimiter size is 1, all other cases are slightly faster. The overall performance gain is 5-10% on AArch64. The string/bits/string2.h header contains optimizations for constant delimiters of size 1-3. Benchmarking these showed similar performance for size 1 (since in all cases strchr/strchrnul is used), while size 2 and 3 can give up to 2x speedup for small input strings. However if these cases are common it seems much better to add this optimization to strcspn. So move these header optimizations to string-inlines.c. Improve the strsep benchmark so that it actually benchmarks something. The current version contains a delimiter character at every position in the input string, so there is very little work to do, and the extremely inefficent simple_strsep implementation appears fastest in every case. The new version has either no match in the input for the fail case and a match halfway in the input for the success case. The input is then restored so that each iteration does exactly the same amount of work. Reduce the number of testcases since simple_strsep takes a lot of time now. * benchtests/bench-strsep.c (oldstrsep): Add old implementation. (do_one_test) Restore original string so iteration works. * string/string-inlines.c (do_test): Create better input strings. (test_main) Reduce number of testruns. * string/string-inlines.c (__old_strsep_1c): New function. (__old_strsep_2c): Likewise. (__old_strsep_3c): Likewise. * string/strsep.c (__strsep): Remove case of small delim string. Call strcspn directly rather than strpbrk. * string/bits/string2.h (__strsep): Remove define. (__strsep_1c): Remove. (__strsep_2c): Remove. (__strsep_3c): Remove. (strsep): Remove. * sysdeps/unix/sysv/linux/internal_statvfs.c (__statvfs_getflags): Rename to __strsep. |
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Joseph Myers
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41c67149b9 |
Add roundeven, roundevenf, roundevenl.
TS 18661-1 defines roundeven functions that round a floating-point number to the nearest integer, in that floating-point type, with ties rounding to even (whereas the round functions round ties away from zero). As with other such functions, they raise no exceptions apart from "invalid" for signaling NaNs. There was a previous user request for this functionality in glibc in <https://sourceware.org/ml/libc-help/2015-02/msg00005.html>. This patch implements these functions for glibc. The implementations use integer bit-manipulation (or roundeven on the high and low parts, in the IBM long double case). It's possible that there may be faster approaches on some architectures (in particular, on AArch64 the frintn instruction should do exactly what's required); I'll leave it to architecture maintainers or others interested to implement such architecture-specific versions if desired. (Where architectures have instructions to round to nearest integer in the current rounding mode, implementations saving and restoring the rounding mode - and dealing with exceptions if those instructions generate "inexact" - are also possible, though their performance depends on the cost of manipulating exceptions / rounding mode state.) Tested for x86_64, x86, mips64 and powerpc. * math/bits/mathcalls.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (roundeven): New declaration. * math/tgmath.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (roundeven): New macro. * math/Versions (roundeven): New libm symbol at version GLIBC_2.25. (roundevenf): Likewise. (roundevenl): Likewise. * math/Makefile (libm-calls): Add s_roundevenF. * math/libm-test.inc (roundeven_test_data): New array. (roundeven_test): New function. (main): Call roundeven_test. * math/test-tgmath.c (NCALLS): Increase to 134. (F(compile_test)): Call roundeven. (F(roundeven)): New function. * manual/arith.texi (Rounding Functions): Document roundeven, roundevenf and roundevenl. * manual/libm-err-tab.pl (@all_functions): Add roundeven. * include/math.h (roundeven): Use libm_hidden_proto. * sysdeps/ieee754/dbl-64/s_roundeven.c: New file. * sysdeps/ieee754/dbl-64/wordsize-64/s_roundeven.c: Likewise. * sysdeps/ieee754/flt-32/s_roundevenf.c: Likewise. * sysdeps/ieee754/ldbl-128/s_roundevenl.c: Likewise. * sysdeps/ieee754/ldbl-128ibm/s_roundevenl.c: Likewise. * sysdeps/ieee754/ldbl-96/s_roundevenl.c: Likewise. * sysdeps/ieee754/ldbl-opt/Makefile (libnldbl-calls): Add roundeven. (CFLAGS-nldbl-roundeven.c): New variable. * sysdeps/ieee754/ldbl-opt/nldbl-roundeven.c: New file. * sysdeps/nacl/libm.abilist: Update. * sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise. |
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Stefan Liebler
|
dd037fb3df |
S390: Optimize lock-elision by decrementing adapt_count at unlock.
This patch decrements the adapt_count while unlocking the futex instead of before aquiring the futex as it is done on power, too. Furthermore a transaction is only started if the futex is currently free. This check is done after starting the transaction, too. If the futex is not free and the transaction nesting depth is one, we can simply end the started transaction instead of aborting it. The implementation of this check was faulty as it always ended the started transaction. By using the fallback path, the the outermost transaction was aborted. Now the outermost transaction is aborted directly. This patch also adds some commentary and aligns the code in elision-trylock.c to the code in elision-lock.c as possible. ChangeLog: * sysdeps/unix/sysv/linux/s390/lowlevellock.h (__lll_unlock_elision, lll_unlock_elision): Add adapt_count argument. * sysdeps/unix/sysv/linux/s390/elision-lock.c: (__lll_lock_elision): Decrement adapt_count while unlocking instead of before locking. * sysdeps/unix/sysv/linux/s390/elision-trylock.c (__lll_trylock_elision): Likewise. * sysdeps/unix/sysv/linux/s390/elision-unlock.c: (__lll_unlock_elision): Likewise. |
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Stefan Liebler
|
53c5c3d5ac |
S390: Use new __libc_tbegin_retry macro in elision-lock.c.
This patch implements __libc_tbegin_retry macro which is equivalent to gcc builtin __builtin_tbegin_retry, except the changes which were applied to __libc_tbegin in the previous patch. If tbegin aborts with _HTM_TBEGIN_TRANSIENT. Then this macros restores the fpc, fprs and automatically retries up to retry_cnt tbegins. Further saving of the state is omitted as it is already saved in the first round. Before retrying a further transaction, the transaction-abort-assist instruction is used to support the cpu. This macro is now used in function __lll_lock_elision. ChangeLog: * sysdeps/unix/sysv/linux/s390/htm.h(__libc_tbegin_retry): New macro. * sysdeps/unix/sysv/linux/s390/elision-lock.c (__lll_lock_elision): Use __libc_tbegin_retry macro. |
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Stefan Liebler
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8bfc4a2ab4 |
S390: Use own tbegin macro instead of __builtin_tbegin.
This patch defines __libc_tbegin, __libc_tend, __libc_tabort and __libc_tx_nesting_depth in htm.h which replaces the direct usage of equivalent gcc builtins. We have to use an own inline assembly instead of __builtin_tbegin, as tbegin has to filter program interruptions which can't be done with the builtin. Before this change, e.g. a segmentation fault within a transaction, leads to a coredump where the instruction pointer points behind the tbegin instruction instead of real failing one. Now the transaction aborts and the code should be reexecuted by the fallback path without transactions. The segmentation fault will produce a coredump with the real failing instruction. The fpc is not saved before starting the transaction. If e.g. the rounging mode is changed and the transaction is aborting afterwards, the builtin will not restore the fpc. This is now done with the __libc_tbegin macro. Now the call saved fprs have to be saved / restored in the __libc_tbegin macro. Using the gcc builtin had forced the saving / restoring of fprs at begin / end of e.g. __lll_lock_elision function. The new macro saves these fprs before tbegin instruction and only restores them on a transaction abort. Restoring is not needed on a successfully started transaction. The used inline assembly does not clobber the fprs / vrs! Clobbering the latter ones would force the compiler to save / restore the call saved fprs as those overlap with the vrs, but they only need to be restored if the transaction fails. Thus the user of the tbegin macros has to compile the file / function with -msoft-float. It prevents gcc from using fprs / vrs. ChangeLog: * sysdeps/unix/sysv/linux/s390/Makefile (elision-CFLAGS): Add -msoft-float. * sysdeps/unix/sysv/linux/s390/htm.h: New File. * sysdeps/unix/sysv/linux/s390/elision-lock.c: Use __libc_t* transaction macros instead of __builtin_t*. * sysdeps/unix/sysv/linux/s390/elision-trylock.c: Likewise. * sysdeps/unix/sysv/linux/s390/elision-unlock.c: Likewise. |
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Stefan Liebler
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c813dae5d8 |
S390: Use C11-like atomics instead of plain memory accesses in lock elision code.
This uses atomic operations to access lock elision metadata that is accessed concurrently (ie, adapt_count fields). The size of the data is less than a word but accessed only with atomic loads and stores. See also x86 commit ca6e601a9d4a72b3699cca15bad12ac1716bf49a: "Use C11-like atomics instead of plain memory accesses in x86 lock elision." ChangeLog: * sysdeps/unix/sysv/linux/s390/elision-lock.c (__lll_lock_elision): Use atomics to load / store adapt_count. * sysdeps/unix/sysv/linux/s390/elision-trylock.c (__lll_trylock_elision): Likewise. |
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Joseph Myers
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525f803984 |
Add fmaxmag, fminmag functions.
TS 18661-1 defines fmaxmag and fminmag functions that return the argument with maximum / minimum magnitude (acting like fmax / fmin if the arguments have the same magnitude or either argument is a NaN). These correspond to the IEEE 754-2008 operations maxNumMag and minNumMag. This patch implements these functions for glibc. They are implemented with type-generic templates. Tests are based on those for fmax and fmin. Tested for x86_64, x86, mips64 and powerpc. * math/bits/mathcalls.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (fmaxmag): New declaration. (fminmag): Likewise. * math/tgmath.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (fmaxmag): New macro. [__GLIBC_USE (IEC_60559_BFP_EXT)] (fminmag): Likewise. * math/Versions (fmaxmag): New libm symbol at version GLIBC_2.25. (fmaxmagf): Likewise. (fmaxmagl): Likewise. (fminmag): Likewise. (fminmagf): Likewise. (fminmagl): Likewise. * math/Makefile (gen-libm-calls): Add s_fmaxmagF and s_fminmagF. * math/s_fmaxmag_template.c: New file. * math/s_fminmag_template.c: Likewise. * math/libm-test.inc (fmaxmag_test_data): New array. (fmaxmag_test): New function. (fminmag_test_data): New array. (fminmag_test): New function. (main): Call fmaxmag_test and fminmag_test. * math/test-tgmath.c (NCALLS): Increase to 132. (F(compile_test)): Call fmaxmag and fminmag. (F(fminmag)): New function. (F(fmaxmag)): Likewise. * manual/arith.texi (Misc FP Arithmetic): Document fminmag, fminmagf, fminmagl, fmaxmag, fmaxmagf and fmaxmagl. * manual/libm-err-tab.pl (@all_functions): Add fmaxmag and fminmag. * sysdeps/ieee754/ldbl-opt/nldbl-fmaxmag.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-fminmag.c: Likewise. * sysdeps/ieee754/ldbl-opt/s_fmaxmagl.c: Likewise. * sysdeps/ieee754/ldbl-opt/s_fminmagl.c: Likewise. * sysdeps/ieee754/ldbl-opt/Makefile (libnldbl-calls): Add fmaxmag and fminmag. (CFLAGS-nldbl-fmaxmag.c): New variable. (CFLAGS-nldbl-fminmag.c): Likewise. * sysdeps/nacl/libm.abilist: Update. * sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise. |
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Zack Weinberg
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ea1bd74def |
New string function explicit_bzero (from OpenBSD).
explicit_bzero(s, n) is the same as memset(s, 0, n), except that the compiler is not allowed to delete a call to explicit_bzero even if the memory pointed to by 's' is dead after the call. Right now, this effect is achieved externally by having explicit_bzero be a function whose semantics are unknown to the compiler, and internally, with a no-op asm statement that clobbers memory. This does mean that small explicit_bzero operations cannot be expanded inline as small memset operations can, but on the other hand, small memset operations do get deleted by the compiler. Hopefully full compiler support for explicit_bzero will happen relatively soon. There are two new tests: test-explicit_bzero.c verifies the visible semantics in the same way as the existing test-bzero.c, and tst-xbzero-opt.c verifies the not-being-optimized-out property. The latter is conceptually based on a test written by Matthew Dempsky for the OpenBSD regression suite. The crypt() implementation has an immediate use for this new feature. We avoid having to add a GLIBC_PRIVATE alias for explicit_bzero by running all of libcrypt's calls through the fortified variant, __explicit_bzero_chk, which is in the impl namespace anyway. Currently I'm not aware of anything in libc proper that needs this, but the glue is all in place if it does become necessary. The legacy DES implementation wasn't bothering to clear its buffers, so I added that, mostly for consistency's sake. * string/explicit_bzero.c: New routine. * string/test-explicit_bzero.c, string/tst-xbzero-opt.c: New tests. * string/Makefile (routines, strop-tests, tests): Add them. * string/test-memset.c: Add ifdeffage for testing explicit_bzero. * string/string.h [__USE_MISC]: Declare explicit_bzero. * debug/explicit_bzero_chk.c: New routine. * debug/Makefile (routines): Add it. * debug/tst-chk1.c: Test fortification of explicit_bzero. * string/bits/string3.h: Fortify explicit_bzero. * manual/string.texi: Document explicit_bzero. * NEWS: Mention addition of explicit_bzero. * crypt/crypt-entry.c (__crypt_r): Clear key-dependent intermediate data before returning, using explicit_bzero. * crypt/md5-crypt.c (__md5_crypt_r): Likewise. * crypt/sha256-crypt.c (__sha256_crypt_r): Likewise. * crypt/sha512-crypt.c (__sha512_crypt_r): Likewise. * include/string.h: Redirect internal uses of explicit_bzero to __explicit_bzero_chk[_internal]. * string/Versions [GLIBC_2.25]: Add explicit_bzero. * debug/Versions [GLIBC_2.25]: Add __explicit_bzero_chk. * sysdeps/arm/nacl/libc.abilist * sysdeps/unix/sysv/linux/aarch64/libc.abilist * sysdeps/unix/sysv/linux/alpha/libc.abilist * sysdeps/unix/sysv/linux/arm/libc.abilist * sysdeps/unix/sysv/linux/hppa/libc.abilist * sysdeps/unix/sysv/linux/i386/libc.abilist * sysdeps/unix/sysv/linux/ia64/libc.abilist * sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist * sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist * sysdeps/unix/sysv/linux/microblaze/libc.abilist * sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist * sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist * sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist * sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist * sysdeps/unix/sysv/linux/nios2/libc.abilist * sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist * sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist * sysdeps/unix/sysv/linux/powerpc/powerpc64/libc-le.abilist * sysdeps/unix/sysv/linux/powerpc/powerpc64/libc.abilist * sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist * sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist * sysdeps/unix/sysv/linux/sh/libc.abilist * sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist * sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist * sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libc.abilist * sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libc.abilist * sysdeps/unix/sysv/linux/tile/tilepro/libc.abilist * sysdeps/unix/sysv/linux/x86_64/64/libc.abilist * sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist: Add entries for explicit_bzero and __explicit_bzero_chk. |
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Joseph Myers
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0acb8a2a85 |
Refactor long double information into bits/long-double.h.
Information about whether the ABI of long double is the same as that of double is split between bits/mathdef.h and bits/wordsize.h. When the ABIs are the same, bits/mathdef.h defines __NO_LONG_DOUBLE_MATH. In addition, in the case where the same glibc binary supports both -mlong-double-64 and -mlong-double-128, bits/wordsize.h defines __LONG_DOUBLE_MATH_OPTIONAL, along with __NO_LONG_DOUBLE_MATH if this particular compilation is with -mlong-double-64. As part of the refactoring I proposed in <https://sourceware.org/ml/libc-alpha/2016-11/msg00745.html>, this patch puts all that information in a single header, bits/long-double.h. It is included from sys/cdefs.h alongside the include of bits/wordsize.h, so other headers generally do not need to include bits/long-double.h directly. Previously, various bits/mathdef.h headers and bits/wordsize.h headers had this long double information (including implicitly in some bits/mathdef.h headers through not having the defines present in the default version). After the patch, it's all in six bits/long-double.h headers. Furthermore, most of those new headers are not architecture-specific. Architectures with optional long double all use the ldbl-opt sysdeps directory, either in the order (ldbl-64-128, ldbl-opt, ldbl-128) or (ldbl-128ibm, ldbl-opt). Thus a generic header for the case where long double = double, and headers in ldbl-128, ldbl-96 and ldbl-opt, suffices to cover every architecture except for cases where long double properties vary between different ABIs sharing a set of installed headers; fortunately all the ldbl-opt cases share a single compiler-predefined macro __LONG_DOUBLE_128__ that can be used to tell whether this compilation is -mlong-double-64 or -mlong-double-128. The two cases where a set of headers is shared between ABIs with different long double properties, MIPS (o32 has long double = double, other ABIs use ldbl-128) and SPARC (32-bit has optional long double, 64-bit has required long double), need their own bits/long-double.h headers. As with bits/wordsize.h, multiple-include protection for this header is generally implicit through the include guards on sys/cdefs.h, and multiple inclusion is harmless in any case. There is one subtlety: the header must not define __LONG_DOUBLE_MATH_OPTIONAL if __NO_LONG_DOUBLE_MATH was defined before its inclusion, because doing so breaks how sysdeps/ieee754/ldbl-opt/nldbl-compat.h defines __NO_LONG_DOUBLE_MATH itself before including system headers. Subject to keeping that working, it would be reasonable to move these macros from defined/undefined #ifdef to always-defined 1/0 #if semantics, but this patch does not attempt to do so, just rearranges where the macros are defined. After this patch, the only use of bits/mathdef.h is the alpha one for modifying complex function ABIs for old GCC. Thus, all versions of the header other than the default and alpha versions are removed, as is the include from math.h. Tested for x86_64 and x86. Also did compilation-only testing with build-many-glibcs.py. * bits/long-double.h: New file. * sysdeps/ieee754/ldbl-128/bits/long-double.h: Likewise. * sysdeps/ieee754/ldbl-96/bits/long-double.h: Likewise. * sysdeps/ieee754/ldbl-opt/bits/long-double.h: Likewise. * sysdeps/mips/bits/long-double.h: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/long-double.h: Likewise. * math/Makefile (headers): Add bits/long-double.h. * misc/sys/cdefs.h: Include <bits/long-double.h>. * stdlib/strtold.c: Include <bits/long-double.h> instead of <bits/wordsize.h>. * bits/mathdef.h [!_COMPLEX_H]: Do not allow inclusion. [!__NO_LONG_DOUBLE_MATH]: Remove conditional code. * math/math.h: Do not include <bits/mathdef.h>. * sysdeps/aarch64/bits/mathdef.h: Remove file. * sysdeps/alpha/bits/mathdef.h [!_COMPLEX_H]: Do not allow inclusion. * sysdeps/ia64/bits/mathdef.h: Remove file. * sysdeps/m68k/m680x0/bits/mathdef.h: Likewise. * sysdeps/mips/bits/mathdef.h: Likewise. * sysdeps/powerpc/bits/mathdef.h: Likewise. * sysdeps/s390/bits/mathdef.h: Likewise. * sysdeps/sparc/bits/mathdef.h: Likewise. * sysdeps/x86/bits/mathdef.h: Likewise. * sysdeps/s390/s390-32/bits/wordsize.h [!__NO_LONG_DOUBLE_MATH && !__LONG_DOUBLE_MATH_OPTIONAL]: Remove conditional code. * sysdeps/s390/s390-64/bits/wordsize.h [!__NO_LONG_DOUBLE_MATH && !__LONG_DOUBLE_MATH_OPTIONAL]: Likewise. * sysdeps/unix/sysv/linux/alpha/bits/wordsize.h [!__NO_LONG_DOUBLE_MATH && !__LONG_DOUBLE_MATH_OPTIONAL]: Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/wordsize.h [!__NO_LONG_DOUBLE_MATH && !__LONG_DOUBLE_MATH_OPTIONAL]: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/wordsize.h [!__NO_LONG_DOUBLE_MATH && !__LONG_DOUBLE_MATH_OPTIONAL]: Likewise. |
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Joseph Myers
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257dabc059 |
Include <linux/falloc.h> in bits/fcntl-linux.h.
This patch makes bits/fcntl-linux.h include <linux/falloc.h> to define the FALLOC_* flags under __USE_GNU (linux/falloc.h defines only those bits, nothing else). Tested for x86_64 and x86. * sysdeps/unix/sysv/linux/bits/fcntl-linux.h [__USE_GNU]: Include <linux/falloc.h>. (FALLOC_FL_KEEP_SIZE): Remove. (FALLOC_FL_PUNCH_HOLE): Likewise. (FALLOC_FL_COLLAPSE_RANGE): Likewise. (FALLOC_FL_ZERO_RANGE): Likewise. |
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Adhemerval Zanella
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8b9283dabd |
Consolidate renameat Linux implementation
This patch consolidates the Linux renameat implementation on sysdeps/unix/sysv/linux/renameat.c. The renameat syscall was deprecated at b0da6d44 for newer architectures, so using the auto-generation list may generate wrappers that returns ENOSYS. Current code try to use __NR_renameat and if it is not define it uses __NR_renameat2. Checked on x86_64 and aarch64. * sysdeps/unix/sysv/linux/renameat.c: New file. * sysdeps/unix/sysv/linux/syscalls.list: Remove renameat. |
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Adhemerval Zanella
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7fe1e1d60a |
Consolidate rename Linux implementation
This patch consolidates the Linux rename implementation on sysdeps/unix/sysv/linux/rename.c. Current code try to use __NR_rename if is defined and apply the same strategy for __NR_renameat and __NR_renameat2. Check on x86_64 and aarch64. * sysdeps/unix/sysv/linux/rename.c: New file. * sysdeps/unix/sysv/linux/generic/rename.c: Remove file. |
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Florian Weimer
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92dcaa3e2f | Add getentropy, getrandom, <sys/random.h> [BZ #17252] | |
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Florian Weimer
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c23de0aacb |
support: Introduce new subdirectory for test infrastructure
The new test driver in <support/test-driver.c> has feature parity with the old one. The main difference is that its hooking mechanism is based on functions and function pointers instead of macros. This commit also implements a new environment variable, TEST_COREDUMPS, which disables the code which disables coredumps (that is, it enables them if the invocation environment has not disabled them). <test-skeleton.c> defines wrapper functions so that it is possible to use existing macros with the new-style hook functionality. This commit changes only a few test cases to the new test driver, to make sure that it works as expected. |
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Andreas Schwab
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657c084cd6 | Get rid of __elision_available | |
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Torvald Riegel
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ca6e601a9d |
Use C11-like atomics instead of plain memory accesses in x86 lock elision.
This uses atomic operations to access lock elision metadata that is accessed concurrently (ie, adapt_count fields). The size of the data is less than a word but accessed only with atomic loads and stores; therefore, we add support for shorter-size atomic load and stores too. * include/atomic.h (__atomic_check_size_ls): New. (atomic_load_relaxed, atomic_load_acquire, atomic_store_relaxed, atomic_store_release): Use it. * sysdeps/x86/elide.h (ACCESS_ONCE): Remove. (elision_adapt, ELIDE_LOCK): Use atomics. * sysdeps/unix/sysv/linux/x86/elision-lock.c (__lll_lock_elision): Use atomics and improve code comments. * sysdeps/unix/sysv/linux/x86/elision-trylock.c (__lll_trylock_elision): Likewise. |
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Joseph Myers
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55a38f8236 |
Add llogb, llogbf, llogbl.
TS 18661-1 defines llogb functions that are like ilogb except that they return long int instead of int. Corresponding FP_LLOGB* macros are defined, whose values are required to have the obvious correspondence to those of the FP_ILOGB* macros. This patch implements these functions and macros for glibc. llogb uses the type-generic infrastructure, with an implementation similar to the wrapper for ilogb but with additional conversion from FP_ILOGB* to FP_LLOGB*; this approach avoids needing to modify or duplicate any of the architecture-specific ilogb implementations. Tests are also based on those for ilogb. Ideally the llogb functions would alias the ilogb ones when long is 32-bit, but such aliasing requires the associated header declarations of the different-type alias to be hidden, typically by defining macros before including the header (see e.g. how sysdeps/ieee754/dbl-64/wordsize-64/s_llround.c defines lround to __hidden_lround before including <math.h>). The infrastructure for type-generic function implementations does not support defining such macros at present (since C code can't define a macro whose name is determined by other macros). So this patch leaves them as separate functions (similar to e.g. scalbln and scalbn being separate in such a case as well), but with the remapping of FP_ILOGB* to FP_LLOGB* conditioned out in the case where it would be the identity map. Tested for x86_64, x86, mips64 and powerpc. * math/bits/mathcalls.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (llogb): New declaration. * math/tgmath.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (llogb): New macro. * math/math.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (__FP_LONG_MAX): New macro. [__GLIBC_USE (IEC_60559_BFP_EXT)] (FP_LLOGB0): Likewise. [__GLIBC_USE (IEC_60559_BFP_EXT)] (FP_LLOGBNAN): Likewise. * math/Versions (llogb): New libm symbol at version GLIBC_2.25. (llogbf): Likewise. (llogbl): Likewise. * math/Makefile (gen-libm-calls): Add w_llogbF. (tests): Add test-fp-llogb-constants. * math/w_llogb_template.c: New file. Based on math/w_ilogb_template.c. * math/libm-test.inc (llogb_test_data): New array. (llogb_test): New function. (main): Call llogb_test. * math/test-fp-llogb-constants.c: New file. Based on math/test-fp-ilogb-constants.c. * math/test-tgmath-ret.c (llogb): New CHECK_RET_CONST call. (do_test): Call check_return_llogb. * math/test-tgmath.c (NCALLS): Increase to 126. (F(compile_test)): Call llogb. (F(llogb)): New function. * manual/math.texi (Exponents and Logarithms): Document llogb, llogbf, llogbl, FP_LLOGB0 and FP_LLOGBNAN. * manual/libm-err-tab.pl (@all_functions): Add llogb. * sysdeps/ieee754/ldbl-opt/nldbl-llogb.c: New file. * sysdeps/ieee754/ldbl-opt/w_llogbl.c: Likewise. * sysdeps/ieee754/ldbl-opt/Makefile (libnldbl-calls): Add llogb. (CFLAGS-nldbl-llogb.c): New variable. * sysdeps/nacl/libm.abilist: Update. * sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise. |
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Joseph Myers
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2314a29b62 |
Add missing hidden_def (__sigsetjmp).
This patch adds the missing hidden_def (__sigsetjmp) on various architectures that were failing to build (as noted in <https://sourceware.org/ml/libc-alpha/2016-11/msg01124.html>). Tested (compilation only) with build-many-glibcs.py. * sysdeps/alpha/setjmp.S (__sigsetjmp): Use hidden_def. * sysdeps/hppa/setjmp.S (__sigsetjmp): Likewise. * sysdeps/mips/mips64/setjmp.S (__sigsetjmp): Likewise. * sysdeps/mips/setjmp.S (__sigsetjmp): Likewise. * sysdeps/sh/sh3/setjmp.S (__sigsetjmp): Likewise. * sysdeps/sh/sh4/setjmp.S (__sigsetjmp): Likewise. * sysdeps/sparc/sparc32/setjmp.S (__sigsetjmp): Likewise. * sysdeps/tile/setjmp.S (__sigsetjmp): Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/setjmp.S (__sigsetjmp): Likewise. |
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Florian Weimer
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b04beebf07 |
ld.so: Remove __libc_memalign
It is no longer needed since commit
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Florian Weimer
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9e78f6f6e7 |
Implement _dl_catch_error, _dl_signal_error in libc.so [BZ #16628]
This change moves the main implementation of _dl_catch_error, _dl_signal_error to libc.so, where TLS variables can be used directly. This removes a writable function pointer from the rtld_global variable. For use during initial relocation, minimal implementations of these functions are provided in ld.so. These are eventually interposed by the libc.so implementations. This is implemented by compiling elf/dl-error-skeleton.c twice, via elf/dl-error.c and elf/dl-error-minimal.c. As a side effect of this change, the static version of dl-error.c no longer includes support for the _dl_signal_cerror/_dl_receive_error mechanism because it is only used in ld.so. |
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Steve Ellcey
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a09411756f |
Use XSTAT_IS_XSTAT64 in generic xstat functions
* sysdeps/unix/sysv/linux/generic/wordsize-32/fxstat.c: Do not define fxstat if XSTAT_IS_XSTAT64 is set to non-zero. * sysdeps/unix/sysv/linux/generic/wordsize-32/fxstatat.c: Ditto for fxstatat. * sysdeps/unix/sysv/linux/generic/wordsize-32/lxstat.c: Ditto for lxstat. * sysdeps/unix/sysv/linux/generic/wordsize-32/xstat.c: Ditto for xstat. * sysdeps/unix/sysv/linux/generic/wordsize-32/fxstat64.c: New file. * sysdeps/unix/sysv/linux/generic/wordsize-32/fxstatat64.c: New file. * sysdeps/unix/sysv/linux/generic/wordsize-32/lxstat64.c: Make __lxstat an alias of __lxstat64 if XSTAT_IS_XSTAT64 is set to non-zero. * sysdeps/unix/sysv/linux/generic/wordsize-32/xstat64.c: Ditto for __xstat. |
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Florian Weimer
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76388b236a |
powerpc: Remove unintended __longjmp symbol from ABI
The __longjmp symbol was left in accidentally. It is not exported
through a Versions file, but through a .symver assembler directive.
The corresponding exported symbol was removed from the non-fpu
powerpc64 targets in commit
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Joseph Myers
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b3daf3ee09 |
Work around IA64 tst-setcontext2.c compile failure.
Building tests for IA64 runs into a build failure compiling
stdlib/tst-setcontext2.c:
tst-setcontext2.c: In function 'do_test':
tst-setcontext2.c:210:20: error: passing argument 1 of 'sigismember' from incompatible pointer type [-Werror=incompatible-pointer-types]
if (sigismember (&oldctx.uc_sigmask, SIGUSR2) != 1)
^
Indeed, the IA64 uc_sigmask as unsigned long rather than the larger
userspace sigset_t. Fixing this might be hard; this patch works
around the build failure by making IA64 wrap the test with a version
that #defines sigismember to add a cast (I'd welcome a better approach
for fixing this).
Tested (compilation only) for ia64.
* sysdeps/unix/sysv/linux/ia64/tst-setcontext2.c: New file.
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Steve Ellcey
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389d1f1b23 |
Partial ILP32 support for aarch64.
* sysdeps/aarch64/crti.S: Add include of sysdep.h. (call_weak_fn): Use PTR_REG to get correct reg name in ILP32. * sysdeps/aarch64/dl-irel.h: Add include of sysdep.h. (elf_irela): Use AARCH64_R macro to get correct relocation in ILP32. * sysdeps/aarch64/dl-machine.h: Add include of sysdep.h. (elf_machine_load_address, RTLD_START, RTLD_START_1, RTLD_START, elf_machine_type_class, ELF_MACHINE_JMP_SLOT, elf_machine_rela, elf_machine_lazy_rel): Add ifdef's for ILP32 support. * sysdeps/aarch64/dl-tlsdesc.S (_dl_tlsdesc_return, _dl_tlsdesc_return_lazy, _dl_tlsdesc_dynamic, _dl_tlsdesc_resolve_hold): Extend pointers in ILP32, use PTR_REG to get correct reg name for ILP32. * sysdeps/aarch64/dl-trampoline.S (ip01): New Macro. (RELA_SIZE): New Macro. (_dl_runtime_resolve, _dl_runtime_profile): Use new macros and PTR_REG to support ILP32. * sysdeps/aarch64/jmpbuf-unwind.h (_JMPBUF_CFA_UNWINDS_ADJ): Add cast for ILP32 mode. * sysdeps/aarch64/memcmp.S (memcmp): Extend arg pointers for ILP32 mode. * sysdeps/aarch64/memcpy.S (memmove, memcpy): Ditto. * sysdeps/aarch64/memset.S (__memset): Ditto. * sysdeps/aarch64/strchr.S (strchr): Ditto. * sysdeps/aarch64/strchrnul.S (__strchrnul): Ditto. * sysdeps/aarch64/strcmp.S (strcmp): Ditto. * sysdeps/aarch64/strcpy.S (strcpy): Ditto. * sysdeps/aarch64/strlen.S (__strlen): Ditto. * sysdeps/aarch64/strncmp.S (strncmp): Ditto. * sysdeps/aarch64/strnlen.S (strnlen): Ditto. * sysdeps/aarch64/strrchr.S (strrchr): Ditto. * sysdeps/unix/sysv/linux/aarch64/clone.S: Ditto. * sysdeps/unix/sysv/linux/aarch64/setcontext.S (__setcontext): Ditto. * sysdeps/unix/sysv/linux/aarch64/swapcontext.S (__swapcontext): Ditto. * sysdeps/aarch64/__longjmp.S (__longjmp): Extend pointers in ILP32, change PTR_MANGLE call to use register numbers instead of names. * sysdeps/unix/sysv/linux/aarch64/getcontext.S (__getcontext): Ditto. * sysdeps/aarch64/setjmp.S (__sigsetjmp): Extend arg pointers for ILP32 mode, change PTR_MANGLE calls to use register numbers. * sysdeps/aarch64/start.S (_start): Ditto. * sysdeps/aarch64/nptl/bits/pthreadtypes.h (__PTHREAD_RWLOCK_INT_FLAGS_SHARED): New define. (__SIZEOF_PTHREAD_ATTR_T, __SIZEOF_PTHREAD_MUTEX_T, __SIZEOF_PTHREAD_MUTEXATTR_T, __SIZEOF_PTHREAD_COND_T, __SIZEOF_PTHREAD_COND_COMPAT_T, __SIZEOF_PTHREAD_CONDATTR_T, __SIZEOF_PTHREAD_RWLOCK_T, __SIZEOF_PTHREAD_RWLOCKATTR_T, __SIZEOF_PTHREAD_BARRIER_T, __SIZEOF_PTHREAD_BARRIERATTR_T): Make defined values dependent on __ILP32__. * sysdeps/aarch64/nptl/bits/semaphore.h (__SIZEOF_SEM_T): Change define. (sem_t): Change __align type. * sysdeps/aarch64/sysdep.h (AARCH64_R, PTR_REG, PTR_LOG_SIZE, DELOUSE, PTR_SIZE): New Macros. (LDST_PCREL, LDST_GLOBAL) Update to use PTR_REG. * sysdeps/unix/sysv/linux/aarch64/bits/fcntl.h (O_LARGEFILE): Set when in ILP32 mode. (F_GETLK64, F_SETLK64, F_SETLKW64): Only set in LP64 mode. * sysdeps/unix/sysv/linux/aarch64/dl-cache.h (DL_CACHE_DEFAULT_ID): Set elf flags for ILP32. (add_system_dir): Set ILP32 library directories. * sysdeps/unix/sysv/linux/aarch64/init-first.c (_libc_vdso_platform_setup): Set minimum kernel version for ILP32. * sysdeps/unix/sysv/linux/aarch64/ldconfig.h (SYSDEP_KNOWN_INTERPRETER_NAMES): Add ILP32 names. * sysdeps/unix/sysv/linux/aarch64/sigcontextinfo.h (GET_PC, SET_PC): New Macros. * sysdeps/unix/sysv/linux/aarch64/sysdep.h: Handle ILP32 pointers. |
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Steve Ellcey
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9e878fa957 |
Fix for [f]statfs64/[f]statfs aliasing patch
* sysdeps/unix/sysv/linux/fstatfs64.c: Reorder include files, only alias fstatfs and __fstatfs if STATFS_IS_STATFS64 is non-zero. * sysdeps/unix/sysv/linux/statfs64.c: Ditto for statfs and __statfs. |
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Joseph Myers
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b5e35350aa |
Do not include asm/cachectl.h in nios2 sys/cachectl.h.
The nios2 sys/cachectl.h includes a kernel header asm/cachectl.h, which does not exist, so causing the check-installed-headers tests to fail. This patch removes the include of a nonexistent header. Tested (compilation only) for nios2. * sysdeps/unix/sysv/linux/nios2/sys/cachectl.h: Do not include <asm/cachectl.h>. |
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Joseph Myers
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457663a7cd |
Add setpayloadsig, setpayloadsigf, setpayloadsigl.
TS 18661-1 defines functions for manipulating the payloads of NaNs. This patch implements the setpayloadsig functions for glibc; these are like the setpayload functions, but produce a signaling NaN instead of a quiet NaN. The substance of the implementation was included with the setpayload implementation, so the new files here just need to wrap the main files with different defines to build the new functions. Because the functions store a signaling NaN via a pointer and the libm-test macros choose a suitable initial value for the variable in such a case by comparing with the expected value, the relevant macro needs to clear exceptions after FE_INVALID may have been raised by that comparison. Tested for x86_64, x86, mips64 and powerpc. * math/bits/mathcalls.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (setpayloadsig): New declaration. * math/Versions (setpayloadsig): New libm symbol at version GLIBC_2.25. (setpayloadsigf): Likewise. (setpayloadsigl): Likewise. * math/Makefile (libm-calls): Add s_setpayloadsigF. * math/libm-test.inc (RUN_TEST_Ff_b1): Call feclearexcept (FE_ALL_EXCEPT) after initializing EXTRA_VAR. (setpayloadsig_test_data): New array. (setpayloadsig_test): New function. (main): Call setpayloadsig_test. * manual/arith.texi (FP Bit Twiddling): Document setpayloadsig, setpayloadsigf and setpayloadsigl. * manual/libm-err-tab.pl: Update comment on interfaces without ulps tabulated. * sysdeps/ieee754/dbl-64/s_setpayloadsig.c: New file. * sysdeps/ieee754/flt-32/s_setpayloadsigf.c: Likewise. * sysdeps/ieee754/ldbl-128/s_setpayloadsigl.c: Likewise. * sysdeps/ieee754/ldbl-128ibm/s_setpayloadsigl.c: Likewise. * sysdeps/ieee754/ldbl-96/s_setpayloadsigl.c: Likewise. * sysdeps/ieee754/ldbl-opt/nldbl-setpayloadsig.c: Likewise. * sysdeps/ieee754/ldbl-opt/Makefile (libnldbl-calls): Add setpayloadsig. (CFLAGS-nldbl-setpayloadsig.c): New variable. * sysdeps/nacl/libm.abilist: Update. * sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise. |
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Adhemerval Zanella
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c579f48edb |
Remove cached PID/TID in clone
This patch remove the PID cache and usage in current GLIBC code. Current
usage is mainly used a performance optimization to avoid the syscall,
however it adds some issues:
- The exposed clone syscall will try to set pid/tid to make the new
thread somewhat compatible with current GLIBC assumptions. This cause
a set of issue with new workloads and usecases (such as BZ#17214 and
[1]) as well for new internal usage of clone to optimize other algorithms
(such as clone plus CLONE_VM for posix_spawn, BZ#19957).
- The caching complexity also added some bugs in the past [2] [3] and
requires more effort of each port to handle such requirements (for
both clone and vfork implementation).
- Caching performance gain in mainly on getpid and some specific
code paths. The getpid performance leverage is questionable [4],
either by the idea of getpid being a hotspot as for the getpid
implementation itself (if it is indeed a justifiable hotspot a
vDSO symbol could let to a much more simpler solution).
Other usage is mainly for non usual code paths, such as pthread
cancellation signal and handling.
For thread creation (on stack allocation) the code simplification in fact
adds some performance gain due the no need of transverse the stack cache
and invalidate each element pid.
Other thread usages will require a direct getpid syscall, such as
cancellation/setxid signal, thread cancellation, thread fail path (at
create_thread), and thread signal (pthread_kill and pthread_sigqueue).
However these are hardly usual hotspots and I think adding a syscall is
justifiable.
It also simplifies both the clone and vfork arch-specific implementation.
And by review each fork implementation there are some discrepancies that
this patch also solves:
- microblaze clone/vfork does not set/reset the pid/tid field
- hppa uses the default vfork implementation that fallback to fork.
Since vfork is deprecated I do not think we should bother with it.
The patch also removes the TID caching in clone. My understanding for
such semantic is try provide some pthread usage after a user program
issue clone directly (as done by thread creation with CLONE_PARENT_SETTID
and pthread tid member). However, as stated before in multiple discussions
threads, GLIBC provides clone syscalls without further supporting all this
semantics.
I ran a full make check on x86_64, x32, i686, armhf, aarch64, and powerpc64le.
For sparc32, sparc64, and mips I ran the basic fork and vfork tests from
posix/ folder (on a qemu system). So it would require further testing
on alpha, hppa, ia64, m68k, nios2, s390, sh, and tile (I excluded microblaze
because it is already implementing the patch semantic regarding clone/vfork).
[1] https://codereview.chromium.org/800183004/
[2] https://sourceware.org/ml/libc-alpha/2006-07/msg00123.html
[3] https://sourceware.org/bugzilla/show_bug.cgi?id=15368
[4] http://yarchive.net/comp/linux/getpid_caching.html
* sysdeps/nptl/fork.c (__libc_fork): Remove pid cache setting.
* nptl/allocatestack.c (allocate_stack): Likewise.
(__reclaim_stacks): Likewise.
(setxid_signal_thread): Obtain pid through syscall.
* nptl/nptl-init.c (sigcancel_handler): Likewise.
(sighandle_setxid): Likewise.
* nptl/pthread_cancel.c (pthread_cancel): Likewise.
* sysdeps/unix/sysv/linux/pthread_kill.c (__pthread_kill): Likewise.
* sysdeps/unix/sysv/linux/pthread_sigqueue.c (pthread_sigqueue):
Likewise.
* sysdeps/unix/sysv/linux/createthread.c (create_thread): Likewise.
* sysdeps/unix/sysv/linux/getpid.c: Remove file.
* nptl/descr.h (struct pthread): Change comment about pid value.
* nptl/pthread_getattr_np.c (pthread_getattr_np): Remove thread
pid assert.
* sysdeps/unix/sysv/linux/pthread-pids.h (__pthread_initialize_pids):
Do not set pid value.
* nptl_db/td_ta_thr_iter.c (iterate_thread_list): Remove thread
pid cache check.
* nptl_db/td_thr_validate.c (td_thr_validate): Likewise.
* sysdeps/aarch64/nptl/tcb-offsets.sym: Remove pid offset.
* sysdeps/alpha/nptl/tcb-offsets.sym: Likewise.
* sysdeps/arm/nptl/tcb-offsets.sym: Likewise.
* sysdeps/hppa/nptl/tcb-offsets.sym: Likewise.
* sysdeps/i386/nptl/tcb-offsets.sym: Likewise.
* sysdeps/ia64/nptl/tcb-offsets.sym: Likewise.
* sysdeps/m68k/nptl/tcb-offsets.sym: Likewise.
* sysdeps/microblaze/nptl/tcb-offsets.sym: Likewise.
* sysdeps/mips/nptl/tcb-offsets.sym: Likewise.
* sysdeps/nios2/nptl/tcb-offsets.sym: Likewise.
* sysdeps/powerpc/nptl/tcb-offsets.sym: Likewise.
* sysdeps/s390/nptl/tcb-offsets.sym: Likewise.
* sysdeps/sh/nptl/tcb-offsets.sym: Likewise.
* sysdeps/sparc/nptl/tcb-offsets.sym: Likewise.
* sysdeps/tile/nptl/tcb-offsets.sym: Likewise.
* sysdeps/x86_64/nptl/tcb-offsets.sym: Likewise.
* sysdeps/unix/sysv/linux/aarch64/clone.S: Remove pid and tid caching.
* sysdeps/unix/sysv/linux/alpha/clone.S: Likewise.
* sysdeps/unix/sysv/linux/arm/clone.S: Likewise.
* sysdeps/unix/sysv/linux/hppa/clone.S: Likewise.
* sysdeps/unix/sysv/linux/i386/clone.S: Likewise.
* sysdeps/unix/sysv/linux/ia64/clone2.S: Likewise.
* sysdeps/unix/sysv/linux/mips/clone.S: Likewise.
* sysdeps/unix/sysv/linux/nios2/clone.S: Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/clone.S: Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/clone.S: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-32/clone.S: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-64/clone.S: Likewise.
* sysdeps/unix/sysv/linux/sh/clone.S: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc32/clone.S: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc64/clone.S: Likewise.
* sysdeps/unix/sysv/linux/tile/clone.S: Likewise.
* sysdeps/unix/sysv/linux/x86_64/clone.S: Likewise.
* sysdeps/unix/sysv/linux/aarch64/vfork.S: Remove pid set and reset.
* sysdeps/unix/sysv/linux/alpha/vfork.S: Likewise.
* sysdeps/unix/sysv/linux/arm/vfork.S: Likewise.
* sysdeps/unix/sysv/linux/i386/vfork.S: Likewise.
* sysdeps/unix/sysv/linux/ia64/vfork.S: Likewise.
* sysdeps/unix/sysv/linux/m68k/clone.S: Likewise.
* sysdeps/unix/sysv/linux/m68k/vfork.S: Likewise.
* sysdeps/unix/sysv/linux/mips/vfork.S: Likewise.
* sysdeps/unix/sysv/linux/nios2/vfork.S: Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/vfork.S: Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/vfork.S: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-32/vfork.S: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-64/vfork.S: Likewise.
* sysdeps/unix/sysv/linux/sh/vfork.S: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc32/vfork.S: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc64/vfork.S: Likewise.
* sysdeps/unix/sysv/linux/tile/vfork.S: Likewise.
* sysdeps/unix/sysv/linux/x86_64/vfork.S: Likewise.
* sysdeps/unix/sysv/linux/tst-clone2.c (f): Remove direct pthread
struct access.
(clone_test): Remove function.
(do_test): Rewrite to take in consideration pid is not cached anymore.
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Steve Ellcey
|
510abe7b94 |
Allow [f]statfs64 to alias [f]statfs
* sysdeps/unix/sysv/linux/fstatfs64.c: Hide prototypes for fstatfs and __fstatfs. Make them aliases of __fstatfs64 if STATFS_IS_STATFS64 is set to non-zero. * sysdeps/unix/sysv/linux/statfs64.c: Ditto for __statfs, statfs, and __statfs64. * sysdeps/unix/sysv/linux/generic/wordsize-32/fstatfs.c: Do not define __fstatfs and fstatfs if STATFS_IS_STATFS64 is non-zero. * sysdeps/unix/sysv/linux/generic/wordsize-32/statfs.c: Ditto for __statfs and statfs. * sysdeps/unix/sysv/linux/alpha/kernel_stat.h: Set STATFS_IS_STATFS64 to 0. * sysdeps/unix/sysv/linux/generic/kernel_stat.h: Ditto. * sysdeps/unix/sysv/linux/hppa/kernel_stat.h: Ditto. * sysdeps/unix/sysv/linux/ia64/kernel_stat.h: Ditto. * sysdeps/unix/sysv/linux/kernel_stat.h: Ditto. * sysdeps/unix/sysv/linux/microblaze/kernel_stat.h: Ditto. * sysdeps/unix/sysv/linux/mips/kernel_stat.h: Ditto. * sysdeps/unix/sysv/linux/powerpc/powerpc32/kernel_stat.h: Ditto. * sysdeps/unix/sysv/linux/powerpc/powerpc64/kernel_stat.h: Ditto. * sysdeps/unix/sysv/linux/s390/s390-64/kernel_stat.h: Ditto. * sysdeps/unix/sysv/linux/sparc/sparc32/kernel_stat.h: Ditto. * sysdeps/unix/sysv/linux/sparc/sparc64/kernel_stat.h: Ditto. * sysdeps/unix/sysv/linux/x86_64/kernel_stat.h: Ditto. |
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Steve Ellcey
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d2e1e97332 |
Always define XSTAT_IS_XSTAT64
* sysdeps/unix/sysv/linux/generic/kernel_stat.h: Set XSTAT_IS_XSTAT64 to 0 when in 32 bit mode. * sysdeps/unix/sysv/linux/hppa/kernel_stat.h: Set XSTAT_IS_XSTAT64 to 0. * sysdeps/unix/sysv/linux/kernel_stat.h: Ditto. * sysdeps/unix/sysv/linux/microblaze/kernel_stat.h: Ditto. * sysdeps/unix/sysv/linux/mips/kernel_stat.h: Ditto. * sysdeps/unix/sysv/linux/powerpc/powerpc32/kernel_stat.h: Ditto. * sysdeps/unix/sysv/linux/sparc/sparc32/kernel_stat.h: Ditto. * sysdeps/unix/sysv/linux/fxstat.c: Replace #ifdef with #if on XSTAT_IS_XSTAT64 test. * sysdeps/unix/sysv/linux/fxstatat.c: Ditto. * sysdeps/unix/sysv/linux/generic/lxstat.c: Ditto. * sysdeps/unix/sysv/linux/generic/xstat.c: Ditto. * sysdeps/unix/sysv/linux/i386/fxstat.c: Ditto. * sysdeps/unix/sysv/linux/i386/fxstatat.c: Ditto. * sysdeps/unix/sysv/linux/i386/lxstat.c: Ditto. * sysdeps/unix/sysv/linux/i386/xstat.c: Ditto. * sysdeps/unix/sysv/linux/lxstat.c: Ditto. * sysdeps/unix/sysv/linux/mips/xstatconv.c: Ditto. * sysdeps/unix/sysv/linux/xstat.c: Ditto. * sysdeps/unix/sysv/linux/xstatconv.c: Ditto. |
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Joseph Myers
|
eb3c12c784 |
Add setpayload, setpayloadf, setpayloadl.
TS 18661-1 defines functions for manipulating the payloads of NaNs. This patch implements the setpayload functions for glibc; these set a number (pointed to by a function argument) to a quiet NaN with the given payload, or to +0 if the given payload is not valid. The implementations are structured to allow the substance of the implementation to be shared with the setpayloadsig functions when those are added. The semantics in the TS are not entirely clear in the case where the payload passed to the function is zero (see discussion on the WG14 reflector last month). This patch implements what seems the most sensible interpretation, that -0 is never valid to give as the payload, but +0 is valid in the case where the kind of NaN being generated has its high mantissa bit set so payload 0 is actually possible in such a NaN. Tested for x86_64, x86, mips64 and powerpc. * math/bits/mathcalls.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (setpayload): New declaration. * math/Versions (setpayload): New libm symbol at version GLIBC_2.25. (setpayloadf): Likewise. (setpayloadl): Likewise. * math/Makefile (libm-calls): Add s_setpayloadF. * math/libm-test.inc (struct test_Ffp_b1_data): Rename to struct test_Ff_b1_data. (RUN_TEST_Ff_b1): New macro. (RUN_TEST_LOOP_Ff_b1): Likewise. (canonicalize_test_data): Update type. (setpayload_test_data): New array. (setpayload_test): New function. (main): Call setpayload_test. * manual/arith.texi (FP Bit Twiddling): Document setpayload, setpayloadf and setpayloadl. * manual/libm-err-tab.pl: Update comment on interfaces without ulps tabulated. * sysdeps/ieee754/dbl-64/s_setpayload.c: New file. * sysdeps/ieee754/dbl-64/s_setpayload_main.c: Likewise. * sysdeps/ieee754/dbl-64/wordsize-64/s_setpayload_main.c: Likewise. * sysdeps/ieee754/flt-32/s_setpayloadf.c: Likewise. * sysdeps/ieee754/flt-32/s_setpayloadf_main.c: Likewise. * sysdeps/ieee754/ldbl-128/s_setpayloadl.c: Likewise. * sysdeps/ieee754/ldbl-128/s_setpayloadl_main.c: Likewise. * sysdeps/ieee754/ldbl-128ibm/s_setpayloadl.c: Likewise. * sysdeps/ieee754/ldbl-128ibm/s_setpayloadl_main.c: Likewise. * sysdeps/ieee754/ldbl-96/s_setpayloadl.c: Likewise. * sysdeps/ieee754/ldbl-96/s_setpayloadl_main.c: Likewise. * sysdeps/ieee754/ldbl-opt/nldbl-setpayload.c: Likewise. * sysdeps/ieee754/ldbl-opt/Makefile (libnldbl-calls): Add setpayload. (CFLAGS-nldbl-setpayload.c): New variable. * sysdeps/nacl/libm.abilist: Update. * sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise. |
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Chris Metcalf
|
6933f28a64 |
Make tile's set_dataplane API compatibility-only
The set_dataplane() API in <sys/dataplane.h> originally supported the Tilera version of Linux as shipped to our customers. Once we started upstreaming the dataplane support in the kernel, the API changed to use fcntl() as part of the current task-isolation patch series. It doesn't seem like continuing to support the old API is useful for newly-compiled code, and even supporting the old glibc binary API on an upstream kernel that supports the new task isolation mode isn't straightforward, since the semantics have changed in ways that make it hard to map the old semantics precisely to the new ones, so just return ENOSYS. |
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Adhemerval Zanella
|
045c13d185 |
Consolidate Linux setrlimit and getrlimit implementation
This patch consolidates all Linux setrlimit and getrlimit on the default
sysdeps/unix/sysv/linux/{set,get}rlimit{64}.c. It contains two exceptions:
1. mips32 and mips64n32 which requires a versioned symbol for GLIBC 2.19
and higher due a broken RLIM64_INFINITY constant.
2. sparc32 does not define a compat symbol for getrlimit64 for old 2GB
limit. I am not sure if it is required, but a RLIM_INFINITY fix [1]
change its definition without adding a compat symbol. This patch does
not aim to address this possible issue, it follow current symbol
export.
The default implementation uses prlimit64 for 64 bit rlim_t ({set,get}rlimit64)
and if it fails with ENOSYS it fall back to {get,set}rlimit syscall. This
code path is only used on kernel older than 2.6.36 (basically now only x86)
and I avoid to user __ASSUME_PRLIMTI64 to simplify the implementation. Once
x86 moves to be on par with other architectures regarding minimum kernel
supported we can get rid of using old syscalls and default path.
A new type size define is added, __RLIM_T_MATCHES_RLIM64_T, where is set as
default for 64 bits ports. This allows the default implementation to avoid
{get,set}rlimit building and alias {get,set}rlimit64 to {get,set}rlimit.
Checked on x86_64, i386, armhf, aarch64, and powerpc64le. I also did a
sanity build plus check-abi on all other supported architectures.
[1] Commit
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Joseph Myers
|
049cc4855a |
Make Alpha <sys/user.h> self-contained.
The check-installed-headers tests show up that the Alpha <sys/user.h> is not self-contained, using size_t without including any header that defines it. This patch fixes it by including <stddef.h>, as done for other architectures' versions of this header. Tested for Alpha (compilation only). * sysdeps/unix/sysv/linux/alpha/sys/user.h: Include <stddef.h>. |
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Adhemerval Zanella
|
afcf3cd8eb |
New internal function __access_noerrno
Implement an internal version of __access called __access_noerrno that avoids setting errno. This is useful to check accessibility of files very early on in process startup i.e. before TLS setup. This allows tunables to replace MALLOC_CHECK_ safely (i.e. check existence of /etc/suid-debug to enable/disable MALLOC_CHECK) and at the same time initialize very early so that it can override IFUNCs. Checked on x86_64. * hurd/hurd.h (__hurd_fail_noerrno): New function. * include/unistd.h [IS_IN (rtld) || !defined SHARED]: Declare __access_noerrno. * io/access.c (__access_noerrno): New function. * sysdeps/mach/hurd/access.c (hurd_fail_seterrno): New function. (hurd_fail_seterrno): Likewise. (access_common): Likewise. (__access_noerrno): Likewise. * sysdeps/nacl/access.c (__access_noerrno): Likewise. * sysdeps/unix/sysv/linux/access.c (__access_noerrno): Likewise. * sysdeps/nacl/nacl-interfaces.h (NACL_CALL_NOERRNO): New macro. |
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Joseph Myers
|
530862a63e |
Fix SH4 register-dump.h for soft-float.
This patch fixes SH4 register-dump.h to declare a variable inside the the build for soft-float. Tested (compilation only) for SH4 soft-float. * sysdeps/unix/sysv/linux/sh/sh4/register-dump.h (register_dump): Only declare fpregs if [__SH_FPU_ANY__]. |
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Joseph Myers
|
f07820b7d1 |
Make SH ucontext always match current kernels.
As discussed in the thread starting at <https://sourceware.org/ml/libc-alpha/2015-06/msg00657.html>, there are various problems with the sigcontext / mcontext / ucontext structures on SH. The soft-float SH4 case in fact does not build at present, with errors processing sysdeps/unix/sysv/linux/sh/sh4/ucontext_i.sym with gen-as-const.awk ("error: 'mcontext_t {aka struct <anonymous>}' has no member named 'fpregs'"). Linux 4.8 (commit bbe6c77857c38f4acbdc4fc70399515226d1859a) moved to always using the same sigcontext structure on SH, with room for floating-point registers whether or not present on the processor. This patch makes the glibc header match. Tested (compilation only) for sh4-linux-gnu hard float, and in conjunction with other fixes for soft float. * sysdeps/unix/sysv/linux/sh/sys/ucontext.h [__SH4__ || __SH4A__]: Make code unconditional. [!(__SH4__ || __SH4A__)]: Remove conditional code. |
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Joseph Myers
|
ba1cafea16 |
Make tilegx32 install libraries in lib32 directories.
This patch makes tilegx32 install libraries in lib32 directories, matching what GCC expects and avoiding conflict with 64-bit libraries installed in lib directories. Tested (compilation only) for tilegx (32-bit and 64-bit, BE and LE, GCC 5). * sysdeps/unix/sysv/linux/tile/tilegx/configure.ac: Use LIBC_SLIBDIR_RTLDDIR for tilegx32. * sysdeps/unix/sysv/linux/tile/tilegx/configure: Regenerated. |
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Joseph Myers
|
8129bf7732 |
Make SH <sys/user.h> self-contained.
The check-installed-headers tests show up that the SH <sys/user.h> is not self-contained, using size_t without including any header that defines it. This patch fixes it by including <stddef.h>, as done for other architectures' versions of this header. Tested for SH3 and SH4 (compilation only). * sysdeps/unix/sysv/linux/sh/sys/user.h: Include <stddef.h>. |
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Adhemerval Zanella
|
0a557c105c |
Fix sh4 build with __ASSUME_ST_INO_64_BIT redefinition
Since
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Adhemerval Zanella
|
3e06601fed |
Consolidate Linux access implementation
This patch consolidates the Linux access implementation on sysdeps/unix/sysv/linux/access.c. Similar to auto-generation through syscalls.list, __NR_access is check and __NR_faccessat is used only for newer architectures (where __NR_access is not defined). Checked on x86_64. * sysdeps/unix/sysv/linux/access.c: New file. * sysdeps/unix/sysv/linux/generic/access.c: Remove file. |
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Adhemerval Zanella
|
d4d8a12960 |
Consolidate Linux truncate implementations
This patch consolidates all Linux truncate implementation on
sysdeps/unix/sysv/linux/truncate{64}.c. It is based on
{INTERNAL,INLINE}_SYSCALL patch [1] to simplify the syscall
construction.
General idea is to build ftruncate iff __OFF_T_MATCHES_OFF64_T is not
defined, otherwise ftruncate64 will be build and ftruncate will be an
alias. The fallocate will use old compat syscall and pass 32-bit off_t
argument, while fallocate64 will handle the correct off64_t passing using
__ALIGNMENT_ARG and SYSCALL_LL64 macros.
Tested on x86_64, i386, aarch64, and armhf.
* sysdeps/unix/sysv/linux/arm/truncate64.c: Remove file.
* sysdeps/unix/sysv/linux/generic/wordsize-32/truncate.c: Likewise.
* sysdeps/sysv/linux/generic/wordsize-32/truncate64.c: Likewise.
* sysdeps/unix/sysv/linux/mips/mips32/truncate64.c: Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/truncate64.c: Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/truncate64.c: Likewise.
* sysdeps/unix/sysv/linux/wordsize-64/truncate64.c: Likewise.
* sysdeps/unix/sysv/linux/truncate.c: New file.
* sysdeps/unix/sysv/linux/truncate64.c (truncate64): Use
INLINE_SYSCALL_CALL, __ALIGNMENT_ARG and SYSCALL_LL64 macros.
* sysdeps/unix/sysv/linux/mips/mips64/syscalls.list (truncate):
Remove.
* sysdeps/unix/sysv/linux/wordsize-64/syscalls.list (truncate):
Likewise.
[1] https://sourceware.org/ml/libc-alpha/2016-08/msg00646.html
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Adhemerval Zanella
|
87686aeefd |
Consolidate Linux ftruncate implementations
THis patch consolidates all Linux ftruncate implementation on
sysdeps/unix/sysv/linux/ftruncate{64}.c. It is based on
{INTERNAL,INLINE}_SYSCALL patch [1] to simplify the syscall construction.
General idea is to build ftruncate iff __OFF_T_MATCHES_OFF64_T is not
defined, otherwise ftruncate64 will be build and ftruncate will be an
alias. The fallocate will use old compat syscall and pass 32-bit off_t
argument, while fallocate64 will handle the correct off64_t passing using
__ALIGNMENT_ARG and SYSCALL_LL64 macros.
Tested on x86_64, i386, aarch64, and armhf.
* posix/tst-truncate-common.c: New file.
* posix/tst-truncate.c: Use tst-truncate-common.c.
* posix/tst-truncate64.c: Likewise and add LFS tests.
* sysdeps/unix/sysv/linux/arm/ftruncate64.c: Remove file.
* sysdeps/unix/sysv/linux/generic/wordsize-32/ftruncate.c: Likewise.
* sysdeps/unix/sysv/linux/generic/wordsize-32/ftruncate64.c: Likewise.
* sysdeps/unix/sysv/linux/mips/mips32/ftruncate64.c: Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/ftruncate64.c: Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/ftruncate64.c: Likewise.
* sysdeps/unix/sysv/linux/wordsize-64/ftruncate64.c: Likewise.
* sysdeps/unix/sysv/linux/ftruncate.c: New file.
* sysdeps/unix/sysv/linux/ftruncate64.c (__ftruncate64): Use
INLINE_SYSCALL_CALL, __ALIGNMENT_ARG and SYSCALL_LL64 macros.
[__OFF_T_MATCHES_OFF64_T] (ftruncate): Add alias.
* sysdeps/unix/sysv/linux/mips/mips64/syscalls.list (ftruncate):
Remove.
* sysdeps/unix/sysv/linux/wordsize-64/syscalls.list (ftruncate):
Likewise.
[1] https://sourceware.org/ml/libc-alpha/2016-08/msg00646.html
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Joseph Myers
|
116ae4fe5a |
Add localplt.data for sh.
This patch adds a localplt.data file for sh so that test passes. The architecture-specific entries are for _Unwind_Find_FDE, _exit and __errno_location. Tested for sh3 and sh4. * sysdeps/unix/sysv/linux/sh/localplt.data: New file. |
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Joseph Myers
|
2d5a67dc89 |
Add localplt.data for hppa.
This patch adds a localplt.data file for hppa so that test passes. Architecture maintainers should feel free to clean up the sysdeps code so that some or all of the system-specific entries libc.so: _exit libc.so: __sigsetjmp libc.so: _IO_funlockfile libc.so: sigprocmask libc.so: __errno_location libpthread.so: __errno_location are no longer needed. Tested for hppa. Note: check-execstack and check-textrel still fail; you may wish to look at those to get to a clean baseline there (they are less obvious for people not familiar with the architecture). * sysdeps/unix/sysv/linux/hppa/localplt.data: New file. |
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Joseph Myers
|
58d6b0d865 |
Update alpha localplt.data.
This patch updates alpha localplt.data so the localplt test passes in my compile-only all-ABIs glibc testing. The failures I see without this patch are: Missing required PLT reference: ld.so: __tls_get_addr Missing required PLT reference: ld.so: free Now, __tls_get_addr can be made optional. For free, rather than making it optional as in libc.so it seems better to mark all the malloc-related symbols in both libc.so and ld.so as allowing an R_ALPHA_GLOB_DAT relocation as an alternative to using a PLT entry, so this patch does so. Tested for alpha. * sysdeps/unix/sysv/linux/alpha/localplt.data: Make __tls_get_addr optional in ld.so. Allow R_ALPHA_GLOB_DAT relocation for malloc, calloc, realloc, free, memalign and __libc_memalign rather than making them optional. |
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Joseph Myers
|
38d84a0f37 |
Update nios2 localplt.data.
This patch updates nios2 localplt.data so the localplt test passes in my compile-only all-ABIs glibc testing. A new PLT entry for __extendsfdf2 is added. Tested for nios2. * sysdeps/unix/sysv/linux/nios2/localplt.data: Add __extendsfdf2 for libc.so. |
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Adhemerval Zanella
|
3c7f1f59cd |
Consolidate lseek/lseek64/llseek implementations
This patch consolidates all Linux lseek/lseek64/llseek implementation
in on on sysdeps/unix/sysv/linux/lseek{64}.c. It also removes the llseek
file and instead consolidate the LFS lseek implementation on lseek64.c
as for other LFS symbols implementations.
The general idea is:
- lseek: ABIs that not define __OFF_T_MATCHES_OFF64_T will preferable
use __NR__llseek if kernel supports it, otherwise they will use __NR_lseek.
ABIs that defines __OFF_T_MATCHES_OFF64_T won't produce any symbol.
- lseek64: ABIs with __OFF_T_MATCHES_OFF64_T will preferable use __NR_lseek
(since it will use 64-bit arguments without low/high splitting) and
__NR__llseek if __NR_lseek is not defined (for some ILP32 ports).
- llseek: files will be removed and symbols will be aliased ot lseek64.
ABI without __OFF_T_MATCHES_OFF64_T and without __NR_llseek (basically MIPS64n32
so far) are covered by building lseek with off_t as expected and lseek64
using __NR_lseek (as expected for off64_t being passed using 64-bit registers).
For this consolidation I mantained the x32 assembly specific implementation
because to correctly fix this it would required both the x32 fix for
{INLINE,INTERNAL}_SYSCALL [1] and a wrapper to correctly subscribe it to
return 64 bits instead of default 32 bits (as for times). It could a future
cleanup.
It is based on my previous {INTERNAL,INLINE}_SYSCALL_CALL macro [2],
although it is mainly for simplification.
Tested on x86_64, i686, aarch64, armhf, and powerpc64le.
* nptl/Makefile (libpthread-routines): Remove ptw-llseek and add
ptw-lseek64.
* sysdeps/unix/sysv/linux/Makefile (sysdeps_routines): Remove llseek.
* sysdeps/unix/sysv/linux/alpha/Makefile (sysdeps_routines):
Likewise.
* sysdeps/unix/sysv/linux/generic/wordsize-32/llseek.c: Remove file.
* sysdeps/unix/sysv/linux/generic/wordsize-32/lseek.c: Remove file.
* sysdeps/unix/sysv/linux/mips/mips64/llseek.c: Likewise.
* sysdeps/unix/sysv/linux/llseek.c: Remove file.
* sysdeps/unix/sysv/linux/lseek.c: New file.
* sysdeps/unix/sysv/linux/lseek64.c: Add default Linux implementation.
* sysdeps/unix/sysv/linux/mips/mips64/syscalls.list: Remove lseek and
__libc_lseek64 from auto-generation.
* sysdeps/unix/sysv/linux/wordsize-64/syscalls.list: Likewise.
* sysdeps/unix/sysv/linux/x86_64/x32/lseek64.S: New file.
[1] https://sourceware.org/ml/libc-alpha/2016-08/msg00443.html
[2] https://sourceware.org/ml/libc-alpha/2016-08/msg00646.html
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Steve Ellcey
|
327792ce57 |
Define __ASSUME_ST_INO_64_BIT on all platforms.
* sysdeps/unix/sysv/linux/alpha/kernel-features.h: #define __ASSUME_ST_INO_64_BIT as 0 * sysdeps/unix/sysv/linux/sh/kernel-features.h: Likewise. * sysdeps/unix/sysv/linux/fxstat64.c: Replace #ifdef with #if over the code where __ASSUME_ST_INO_64_BIT is used. * sysdeps/unix/sysv/linux/lxstat64.c: Likewise. * sysdeps/unix/sysv/linux/xstat64.c: Likewise. * sysdeps/unix/sysv/linux/xstatconv.c: Likewise. |
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Florian Weimer
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c74940f2a7 | nptl: Document the reason why __kind in pthread_mutex_t is part of the ABI | |
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Adhemerval Zanella
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6d1774146f |
Fix sparc build due missing __WORDSIZE_TIME64_COMPAT32 definition
This patch adds the missing Linux sparc definitions from
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Joseph Myers
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94bf0b4ac9 |
Make MIPS <sys/user.h> self-contained.
The check-installed-headers tests show up that the MIPS <sys/user.h> is not self-contained, using size_t without including any header that defines it. This patch fixes it by including <stddef.h>, as done for other architectures' versions of this header. Tested for MIPS (all 24 ABIs, compilation only). * sysdeps/unix/sysv/linux/mips/sys/user.h: Include <stddef.h>. |
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Joseph Myers
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7672e712e1 |
XFAIL check-execstack for MIPS.
This patch marks the check-execstack test as expected to fail for MIPS, with a comment referencing previous RFC discussion of the changes that would be needed to support non-executable stacks on MIPS. Tested for MIPS (all 24 ABIs). * sysdeps/unix/sysv/linux/mips/Makefile [$(subdir) = elf] (test-xfail-check-execstack): New variable. |
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Steve Ellcey
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d060cd002d |
Define wordsize.h macros everywhere
* bits/wordsize.h: Add documentation. * sysdeps/aarch64/bits/wordsize.h : New file * sysdeps/generic/stdint.h (PTRDIFF_MIN, PTRDIFF_MAX): Update definitions. (SIZE_MAX): Change ifdef to if in __WORDSIZE32_SIZE_ULONG check. * sysdeps/gnu/bits/utmp.h (__WORDSIZE_TIME64_COMPAT32): Check with #if instead of #ifdef. * sysdeps/gnu/bits/utmpx.h (__WORDSIZE_TIME64_COMPAT32): Ditto. * sysdeps/mips/bits/wordsize.h (__WORDSIZE32_SIZE_ULONG, __WORDSIZE32_PTRDIFF_LONG, __WORDSIZE_TIME64_COMPAT32): Add or change defines. * sysdeps/powerpc/powerpc32/bits/wordsize.h: Likewise. * sysdeps/powerpc/powerpc64/bits/wordsize.h: Likewise. * sysdeps/s390/s390-32/bits/wordsize.h: Likewise. * sysdeps/s390/s390-64/bits/wordsize.h: Likewise. * sysdeps/sparc/sparc32/bits/wordsize.h: Likewise. * sysdeps/sparc/sparc64/bits/wordsize.h: Likewise. * sysdeps/tile/tilegx/bits/wordsize.h: Likewise. * sysdeps/tile/tilepro/bits/wordsize.h: Likewise. * sysdeps/unix/sysv/linux/alpha/bits/wordsize.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/wordsize.h: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/wordsize.h: Likewise. * sysdeps/wordsize-32/bits/wordsize.h: Likewise. * sysdeps/wordsize-64/bits/wordsize.h: Likewise. * sysdeps/x86/bits/wordsize.h: Likewise. |
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Tulio Magno Quites Machado Filho
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ce193f551e |
powerpc: Fix TOC stub on powerpc64 clone()
Use a function call to _exit() so that the linker can create a TOC stub instead of just a branch. Tested on powerpc64. |
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Florian Weimer
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6b1df8b27f | i386: Support CFLAGS which imply -fno-omit-frame-pointer [BZ #20729] | |
David S. Miller
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61668b22f5 |
Fix a sparc header conformtest failure.
* sysdeps/unix/sysv/linux/sparc/sys/user.h: Include stddef.h |
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Joseph Myers
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eaf5ad0bc4 |
Add canonicalize, canonicalizef, canonicalizel.
TS 18661-1 defines canonicalize functions to produce a canonical version of a floating-point representation. This patch implements these functions for glibc. As with the iscanonical macro, these functions are oriented to the decimal floating-point case, where some values have both canonical and noncanonical representations. However, the functions have a return value that says whether they succeeded in storing a canonical result; thus, they can fail for the case of an invalid representation (while still not making any particular choice from among multiple equally canonical valid representations of the same value). Since no floating-point formats in glibc actually have noncanonical valid representations, a type-generic implementation of these functions can be used that expects iscanonical to return 0 only for invalid representations. Now that iscanonical is used within libm.so, libm_hidden_proto / libm_hidden_def are added for __iscanonicall. The definition of these functions is intended to correspond to a convertFormat operation to the same floating-point format. Thus, they convert signaling NaNs to quiet NaNs, raising the "invalid" exception. Such a conversion "should" produce "the canonical version of that signaling NaN made quiet". libm-test.inc is made to check NaN payloads for the output of these functions, a new feature (at some point manipulation functions such as fabs and copysign should have tests added that verify payload preservation for them). As however some architectures may not follow the recommended practice of preserving NaN payloads when converting a signaling NaN to quiet, a new math-tests.h macro SNAN_TESTS_PRESERVE_PAYLOAD is added, and defined to 0 for non-NAN2008 MIPS; any other architectures seeing test failures for lack of payload preservation in this case should also define this macro to 0. (If any cases arise where the sign isn't preserved either, those should have a similar macro added.) The ldbl-96 and ldbl-128ibm tests of iscanonical are renamed and adapted to test canonicalizel as well on the same representations. Tested for x86_64, x86, mips64 and powerpc. * math/bits/mathcalls.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (canonicalize): New declaration. * math/Versions (canonicalize): New libm symbol at version GLIBC_2.25. (canonicalizef): Likewise. (canonicalizel): Likewise. * math/Makefile (gen-libm-calls): Add s_canonicalizeF. * math/s_canonicalize_template.c: New file. * math/libm-test.inc: Update comment on functions tested and testing of NaN payloads. (TEST_NAN_PAYLOAD): New macro. (NO_TEST_INLINE): Update value. (XFAIL_TEST): Likewise. (ERRNO_UNCHANGED): Likewise. (ERRNO_EDOM): Likewise. (ERRNO_ERANGE): Likewise. (IGNORE_RESULT): Likewise. (NON_FINITE): Likewise. (TEST_SNAN): Likewise. (NO_TEST_MATHVEC): Likewise. (TEST_NAN_PAYLOAD_CANONICALIZE): New macro. (check_float_internal): Check NaN payloads if TEST_NAN_PAYLOAD. (struct test_Ffp_b1_data): New type. (RUN_TEST_Ffp_b1): New macro. (RUN_TEST_LOOP_Ffp_b1): Likewise. (canonicalize_test_data): New array. (canonicalize_test): New function. (main): Call canonicalize_test. * manual/arith.texi (FP Bit Twiddling): Document canonicalize, canonicalizef and canonicalizel. * manual/libm-err-tab.pl: Update comment on interfaces without ulps tabulated. * sysdeps/ieee754/ldbl-opt/nldbl-canonicalize.c: New file. * sysdeps/ieee754/ldbl-opt/s_canonicalizel.c: Likewise. * sysdeps/ieee754/ldbl-opt/Makefile (libnldbl-calls): Add canonicalize. (CFLAGS-nldbl-canonicalize.c): New variable. * sysdeps/ieee754/ldbl-128ibm/test-iscanonical-ldbl-128ibm.c: Move to ... * sysdeps/ieee754/ldbl-128ibm/test-canonical-ldbl-128ibm.c: ... here. (do_test): Also test canonicalizel. * sysdeps/ieee754/ldbl-128ibm/Makefile (tests): Change test-iscanonical-ldbl-128ibm to test-canonical-ldbl-128ibm. * sysdeps/ieee754/ldbl-128ibm/include/bits/iscanonical.h: New file. * sysdeps/ieee754/ldbl-128ibm/s_iscanonicall.c (__iscanonicall): Use libm_hidden_def. * sysdeps/ieee754/ldbl-96/test-iscanonical-ldbl-96.c: Move to ... * sysdeps/ieee754/ldbl-96/test-canonical-ldbl-96.c: ... here. (do_test): Also test canonicalizel. * sysdeps/ieee754/ldbl-96/Makefile (tests): Change test-iscanonical-ldbl-96 to test-canonical-ldbl-96. * sysdeps/ieee754/ldbl-96/include/bits/iscanonical.h: New file. * sysdeps/ieee754/ldbl-96/s_iscanonicall.c (__iscanonicall): Use libm_hidden_def. * sysdeps/generic/math-tests.h (SNAN_TESTS_PRESERVE_PAYLOAD): New macro. * sysdeps/mips/math-tests.h [__mips_hard_float && !__mips_nan2008] (SNAN_TESTS_PRESERVE_PAYLOAD): Likewise. * sysdeps/nacl/libm.abilist: Update. * sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise. |
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Gabriel F. T. Gomes
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6962682ffe |
Add strfromd, strfromf, and strfroml functions
ISO/IEC TS 18661-1 adds several functions in the strfrom family to stdlib. This patch adds strfromd, strfromf, and strfroml. This is being done in preparation for the new floating-point type, float128. The added functions convert a floating-point value into a string, with configurable format. |
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Yury Norov
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20973cf442 |
* sysdeps/unix/sysv/linux/fxstat.c: Remove useless cast.
* sysdeps/unix/sysv/linux/lxstat.c: Likewise. * sysdeps/unix/sysv/linux/xstat.c: Likewise. * sysdeps/unix/sysv/linux/i386/fxstat.c: Likewise. * sysdeps/unix/sysv/linux/i386/lxstat.c: Likewise. * sysdeps/unix/sysv/linux/i386/xstat.c: Likewise. |
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Adhemerval Zanella
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2152cf7eda |
Fix Linux sh4 pread/pwrite argument passing
Although conceptually correct for p{read,write}{64} offset argument passing,
sh4 implementation does not generate the correct expected code. The
__ALIGNMENT_ARG redefinition is incorrect for two reasons: 1. the
kernel-features.h header is included multiple times (since it contains no
guards) and 2. the value it redefines is also incorrect (should be '0, '
instead of empty definition).
This patch fixes it by adding another macro, SYSCALL_LL_PRW{64}, meant to be
used to pass the offset argument on p{read,write}64. It is basically the
already define SYSCALL_LL{64} plus __ALIGNMENT_ARG unless __ASSUME_PRW_DUMMY_ARG
is define. In this case an empty dummy argument is used regardless how
__ALIGNMENT_ARG is defined (sh4 case).
Checked on x86_64, i686, aarch64, armhf, and powerpc64le (basically a sanity
check). Also, John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> and
James Clarke <jrtc27@jrtc27.com> help me check on a debian sh4 bootstrap using
2.24 plus this patch to verify it also corrected fixed the regression issue.
I also verified the generated object for a 2.24 build and master with this
patch for sh4 and both look identical.
* sysdeps/unix/sysv/linux/pread.c (__libc_pread): Use SYSCALL_LL_PRW.
* sysdeps/unix/sysv/linux/pwrite.c (__libc_pwrite): Likewise.
* sysdeps/unix/sysv/linux/pread64.c (__libc_pread64): Use
SYSCALL_LL64_PRW.
* sysdeps/unix/sysv/linux/pwrite64.c (__libc_pwrite64): Likewise.
* sysdeps/unix/sysv/linux/sh/kernel-features.h: Define
__ASSUME_PRW_DUMMY_ARG.
* sysdeps/unix/sysv/linux/sh/pread.c: Remove file.
* sysdeps/unix/sysv/linux/sh/pread64.c: Likewise.
* sysdeps/unix/sysv/linux/sh/pwrite.c: Likewise.
* sysdeps/unix/sysv/linux/sh/pwrite64.c: Likewise.
* sysdeps/unix/sysv/linux/sysdep.h: Define SYSCALL_LL_PRW and
SYSCALL_LL_PRW64 based on __ASSUME_PRW_DUMMY_ARG.
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Steve Ellcey
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93f9416301 |
Fix -Wformat-length warning in tst-setgetname.c
* sysdeps/unix/sysv/linux/tst-setgetname.c: Increase buffer size. |
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Joseph Myers
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f8e8b8ed9f |
Add getpayload, getpayloadf, getpayloadl.
TS 18661-1 defines functions for manipulating the payloads of NaNs. This patch implements the getpayload functions for glibc; these extract the NaN payload (from an argument passed as a pointer, for which corresponding libm-test support is added) and return it in the same floating-point type. The return value of these functions is unspecified for non-NaN arguments; the patch does the simplest thing to implement, which is that the functions do not check whether the argument is a NaN and just treat the relevant bits of the representation as a payload regardless. A conversion from integer to floating-point is used to produce the required return value, except in the ldbl-128 case; as 128-bit integers are not supported for all configurations using ldbl-128, the code constructs the required floating-point representation of the return value directly instead. Tested for x86_64, x86, mips64 and powerpc. * math/bits/mathcalls.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (getpayload): New declaration. * math/Versions (getpayload): New libm symbol at version GLIBC_2.25. (getpayloadf): Likewise. (getpayloadl): Likewise. * math/Makefile (libm-calls): Add s_getpayloadF. * math/libm-test.inc: Include <nan-high-order-bit.h>. (struct test_f_f_data): Add comment. (RUN_TEST_fp_f): New macro. (RUN_TEST_LOOP_fp_f): Likewise. (getpayload_test_data): New array. (getpayload_test): New function. (main): Call getpayload_test. * math/gen-libm-test.pl (parse_args): Handle 'p' in argument descriptor. * manual/arith.texi (FP Bit Twiddling): Document getpayload, getpayloadf and getpayloadl. * manual/libm-err-tab.pl: Update comment on interfaces without ulps tabulated. * sysdeps/ieee754/dbl-64/s_getpayload.c: New file. * sysdeps/ieee754/dbl-64/wordsize-64/s_getpayload.c: Likewise. * sysdeps/ieee754/flt-32/s_getpayloadf.c: Likewise. * sysdeps/ieee754/ldbl-128/s_getpayloadl.c: Likewise. * sysdeps/ieee754/ldbl-128ibm/s_getpayloadl.c: Likewise. * sysdeps/ieee754/ldbl-96/s_getpayloadl.c: Likewise. * sysdeps/nacl/libm.abilist: Update. * sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise. |
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Adhemerval Zanella
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a9bfffe593 |
Fix Linux fallocate tests for EOPNOTSUPP
The fallocate syscall might fail on Linux due missing support from
underlying filesystem (for instance some NFS versions). This patch
adds this check for fallocate tests. It also moves tst-fallocate{64}
to 'io' folder (since it is on fallocate{64} is built).
Checked on x86_64.
* sysdeps/unix/sysv/linux/Makefile [$(subdir) = math] (tests): Move
tst-fallocate{64}.
* sysdeps/unix/sysv/linux/tst-fallocate-common.c: Check for EOPNOTSUPP
on syscall return.
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John David Anglin
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7cfde84069 |
hppa: Optimize atomic_compare_and_exchange_val_acq
Changelog: * sysdeps/unix/sysv/linux/hppa/atomic-machine.h: Don't include abort-instr.h. (EFAULT): Remove conditional define. (ENOSYS): Likewise. (atomic_compare_and_exchange_val_acq): Use instruction nullification instead of conditional branch instructions. |
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Joseph Myers
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cc6a8d7457 |
Add totalordermag, totalordermagf, totalordermagl.
In addition to the totalorder functions, TS 18661-1 defines totalordermag functions, which do the same comparison but on the absolute values of the arguments. This patch implements these functions for glibc, including the type-generic macro in <tgmath.h>. In general the implementations are similar to but simpler than those for the totalorder functions. Tested for x86_64, x86, mips64 and powerpc. * math/bits/mathcalls.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (totalordermag): New declaration. * math/tgmath.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (totalordermag): New macro. * math/Versions (totalordermag): New libm symbol at version GLIBC_2.25. (totalordermagf): Likewise. (totalordermagl): Likewise. * math/Makefile (libm-calls): Add s_totalordermagF. * math/libm-test.inc (totalordermag_test_data): New array. (totalordermag_test): New function. (main): Call totalordermag_test. * math/test-tgmath.c (NCALLS): Increase to 125. (F(compile_test)): Call totalordermag. (F(totalordermag)): New function. * manual/arith.texi (FP Comparison Functions): Document totalordermag, totalordermagf and totalordermagl. * manual/libm-err-tab.pl: Update comment on interfaces without ulps tabulated. * sysdeps/ieee754/dbl-64/s_totalordermag.c: New file. * sysdeps/ieee754/dbl-64/wordsize-64/s_totalordermag.c: Likewise. * sysdeps/ieee754/flt-32/s_totalordermagf.c: Likewise. * sysdeps/ieee754/ldbl-128/s_totalordermagl.c: Likewise. * sysdeps/ieee754/ldbl-128ibm/s_totalordermagl.c: Likewise. * sysdeps/ieee754/ldbl-96/s_totalordermagl.c: Likewise. * sysdeps/ieee754/ldbl-opt/nldbl-totalordermag.c: Likewise. * sysdeps/ieee754/ldbl-opt/Makefile (libnldbl-calls): Add totalordermag. (CFLAGS-nldbl-totalordermag.c): New variable. * sysdeps/ieee754/ldbl-128ibm/test-totalorderl-ldbl-128ibm.c (do_test): Also test totalordermagl. * sysdeps/ieee754/ldbl-96/test-totalorderl-ldbl-96.c (do_test): Likewise. * sysdeps/nacl/libm.abilist: Update. * sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise. |
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Adhemerval Zanella
|
7164580495 |
Fix posix_fadvise64 build on mips64n64
Recent binutils versions (at least 2.27) complains about libc.so when linking sotruss-lib.so with: libc.so:(*IND*+0x0): multiple definition of `posix_fadvise64@GLIBC_2.2' libc.so::(.text+0xcf940): first defined here libc.so:(*IND*+0x0): multiple definition of `posix_fadvise64' collect2: error: ld returned 1 exit status Dynamic symbols for libc.so shows (readelf --dyn-syms): 262: 000000000010b950 28 FUNC GLOBAL DEFAULT 12 posix_fadvise64@GLIBC_2.2 417: 000000000010b950 28 FUNC WEAK DEFAULT 12 posix_fadvise64@@GLIBC_2.2 1505: 000000000010b950 28 FUNC GLOBAL DEFAULT 12 posix_fadvise64@@GLIBC_2.3.3 That is, two separate definitions at version GLIBC_2.2. The issue is sysdeps/unix/sysv/linux/posix_fadvise64.c creates posix_fadvise64 weak_alias, while sysdeps/unix/sysv/linux/mips/mips64/n64/posix_fadvise64.c then adds compat_symbol / versioned_symbol calls. The patch remove the weak_alias definition on mips64 specific version so direct weak_alias is disabled. Checked on mips64n64 build with binutils 2.27.51.20161012. * sysdeps/unix/sysv/linux/mips/mips64/n64/posix_fadvise64.c: Undefine weak_alias. |
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Joseph Myers
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5e9d98a3d9 |
Add totalorder, totalorderf, totalorderl.
TS 18661-1 defines totalorder functions implementing the totalOrder comparison operation from IEEE 754-2008. This patch implements these functions for glibc, including the type-generic macro in <tgmath.h>. (The totalordermag functions will be added in a separate patch.) The description of the totalOrder operation is complicated. However, for IEEE interchange binary formats and the preferred quiet NaN convention, what that complicated description means is that you interpret the representation as a sign-magnitude integer (with -0 coming before +0) and do a <= comparison on that interpretation. For finite values and infinities the ordering of the sign-magnitude integers is just the same as the ordering of floating-point values, so this extends that to all representations. (Different representations of the same floating-point value - which includes same quantum in the decimal case - must still be considered equal by this operation, but that issue doesn't arise for IEEE interchange binary formats.) So the complications are: * When MIPS quiet NaN conventions are in use, the representation of NaNs needs adjusting before making such an integer comparison. This patch does this adjustment only when both arguments are NaNs, as there's no need for it if only one is a NaN, and as long as both are NaNs you can just flip the relevant bits without any problems from this turning a NaN into an infinity. * For the m68k version of ldbl-96, where the high mantissa bit is "don't care" for infinities and NaNs, representations where it differs must compare the same. Note: although the testcase for this compiles, I have not actually tested on m68k. * For ldbl-128ibm, the low part must be ignored when the high part is NaN, and low parts of +0 and -0 must be considered the same whatever the high part. The new tests in libm-test.inc are the first tests there specifying particular payloads for input NaNs. Separate tests are also added for the ldbl-96 and ldbl-128ibm special cases where there are different representations of the same value that must compare equal (which can't be covered in libm-test.inc as that only specifies values, not representations). Tested for x86_64, x86, mips64 and powerpc. * math/bits/mathcalls.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (totalorder): New declaration. * math/tgmath.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (totalorder): New macro. * math/Versions (totalorder): New libm symbol at version GLIBC_2.25. (totalorderf): Likewise. (totalorderl): Likewise. * math/Makefile (libm-calls): Add s_totalorderF. * math/gen-libm-test.pl (parse_args): Escape quotes in test name string. * math/libm-test.inc (PAYLOAD_DIG): New macro. (qnan_value_pl): Likewise. (snan_value_pl): Likewise. (qnan_value): Define using qnan_value_pl. (snan_value): Define using snan_value_pl. (struct test_ff_i_data): Add comment about which tests use this structure. (RUN_TEST_ff_b): New macro. (RUN_TEST_LOOP_ff_b): Likewise. (totalorder_test_data): New array. (totalorder_test): New function. (main): Call totalorder_test. * math/test-tgmath.c (NCALLS): Increase to 122. (F(compile_test)): Call totalorder. (F(totalorder)): New function. * manual/arith.texi (FP Comparison Functions): Document totalorder, totalorderf and totalorderl. * manual/libm-err-tab.pl: Update comment on interfaces without ulps tabulated. * sysdeps/ieee754/dbl-64/s_totalorder.c: New file. * sysdeps/ieee754/dbl-64/wordsize-64/s_totalorder.c: Likewise. * sysdeps/ieee754/flt-32/s_totalorderf.c: Likewise. * sysdeps/ieee754/ldbl-128/s_totalorderl.c: Likewise. * sysdeps/ieee754/ldbl-128ibm/s_totalorderl.c: Likewise. * sysdeps/ieee754/ldbl-96/s_totalorderl.c: Likewise. * sysdeps/ieee754/ldbl-opt/nldbl-totalorder.c: Likewise. * sysdeps/ieee754/ldbl-opt/Makefile (libnldbl-calls): Add totalorder. (CFLAGS-nldbl-totalorder.c): New variable. * sysdeps/ieee754/ldbl-128ibm/test-totalorderl-ldbl-128ibm.c: New file. * sysdeps/ieee754/ldbl-128ibm/Makefile [$(subdir) = math] (tests): Add test-totalorderl-ldbl-128ibm. * sysdeps/ieee754/ldbl-96/test-totalorderl-ldbl-96.c: New file. * sysdeps/ieee754/ldbl-96/Makefile [$(subdir) = math] (tests): Add test-totalorderl-ldbl-96. * sysdeps/nacl/libm.abilist: Update. * sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise. |
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Adhemerval Zanella
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5da2c626a5 |
Consolidate Linux sync_file_range implementations
This patch consolidates all the sync_file_range implementation for Linux in only one (sysdeps/unix/sysv/linux/sync_file_range.c). It also removes the syscall from the auto-generation using assembly macros (except for x86_64 due x32 [1]). For current minimum supported kernel (2.6.32 for x86_64 and 3.2 for all other architectures) either sync_file_range or sync_file_range2 is supported and it is expected that any future Linux ABI will provide either of one syscall. So the code path that returns ENOSYS in the case of missing syscall is removed. Checked on x86_64, i386, powerpc64le, aarch64, and armhf. * sysdeps/unix/sysv/linux/Makefile (tests): Add tst-sync_file_range. * sysdeps/unix/sysv/linux/mips/mips32/sync_file_range.c: Remove file. * sysdeps/sysv/linux/powerpc/powerpc64/sync_file_range.c: Likewise. * sysdeps/unix/sysv/linux/sync_file_range.c: New file. * sysdeps/unix/sysv/linux/tst-sync_file_range.c (sync_file_range): Consolidate all Linux implementations. [1] https://patchwork.ozlabs.org/patch/659794/ |
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Adhemerval Zanella
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96b7fe4243 |
Consolidate posix_fadvise implementations
This patch consolidates mostly of the Linux posix_fadvise{64} implementations
on sysdeps/unix/sysv/linux/posix_fadvise{64}.c. It still keeps arch-specific
files for:
* S390-32: it uses a packed structure to pass all the arguments on syscall.
It is the only supported port that implements __NR_fadvise64_64 in this
way.
* ARM: it does not implement __NR_fadvise64 (as other 32-bits ports), so
posix_fadvise calls internal posix_fadvise64 symbol.
* MIPS64 n64: it requires a different version number that other ports.
The new macro SYSCALL_LL{64} is used to handle the offset argument and
INTERNAL_SYSCALL_CALL to handle passing the correct number of expect
arguments.
The default Linux adds two new defines a port can use to control how
__NR_fadvise64_64 passes the kernel arguments:
* __ASSUME_FADVISE64_64_6ARG: the 'advise' argument is moved on second
position. This is the case of powerpc32 and arm to avoid implement
7 argument syscall.
* __ASSUME_FADVISE64_64_NO_ALIGN: for ABIs that defines
__ASSUME_ALIGNED_REGISTER_PAIRS packs the offset without the leading
'0'. This is the case of tile 32 bits.
ARM also defines __NR_fadvise64_64 as __NR_arm_fadvise64_64 (which is also
handled on arch kernel-feature.h).
Tested on x86_64, x32, i686, armhf, and aarch64.
* posix/Makefile (tests): Add tst-posix_fadvise and tst-posix_fadvise64.
* posix/tst-posix_fadvise.c: New file.
* posix/tst-posix_fadvise64.c: Likewise.
* posix/tst-posix_fadvise-common.c: Likewise.
* sysdeps/unix/sysv/linux/arm/kernel-features.h
(__ASSUME_FADVISE64_64_6ARG): Define.
* sysdeps/unix/sysv/linux/powerpc/kernel-features.h
[!__powerpc64__] (__ASSUME_FADVISE64_64_6ARG): Add define.
* sysdeps/unix/sysv/linux/arm/posix_fadvise64.c: Remove file.
* sysdeps/unix/sysv/linux/generic/wordsize-32/posix_fadvise.c: Likewise.
* sysdeps/unix/sysv/linux/i386/posix_fadvise64.S: Likewise.
* sysdeps/unix/sysv/linux/mips/mips32/posix_fadvise.c: Likewise.
* sysdeps/unix/sysv/linux/mips/mips32/posix_fadvise64.c: Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/n32/posix_fadvise.c: Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/n32/posix_fadvise64.c: Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/n64/posix_fadvise.c: Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/posix_fadvise.c: Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/posix_fadvise64.c:
Likewise.
* sysdeps/unix/sysv/linux/wordsize-64/posix_fadvise.c: Likewise.
* sysdeps/unix/sysv/linux/wordsize-64/posix_fadvise64.c: Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/n64/posix_fadvise64.c
(SHLIB_COMPAT(libc, GLIBC_2_2, GLIBC_2_3_3) [__posix_fadvise64_l64]:
Alias to __posix_fadvise64_l32.
(SHLIB_COMPAT(libc, GLIBC_2_2, GLIBC_2_3_3) [__posix_fadvise64_l32]:
Add compat definition to posix_fadvise64.
(SHLIB_COMPAT(libc, GLIBC_2_2, GLIBC_2_3_3) [__posix_fadvise64_l64]:
Add versioned definition to posix_fadvise64.
* sysdeps/unix/sysv/linux/posix_fadvise.c (posix_fadvise): Build iff
__OFF_T_MATCHES_OFF64_T is defined, use INTERNAL_SYSCALL_CALL, add
__ASSUME_FADVISE64_64_6ARG/__ASSUME_FADVISE64_64_NO_ALIGN support.
* sysdeps/unix/sysv/linux/posix_fadvise64.c (posix_fadvise64): Add
__ASSUME_FADVISE64_64_NO_ALIGN support and use INTERNAL_SYSCALL_CALL.
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Adhemerval Zanella
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45ff2bfcb3 |
Consolidate posix_fallocate{64} implementations
This patch consolidates all the posix_fallocate{64} implementation for Linux
in only one (sysdeps/unix/sysv/linux/posix_fallocate{64}.c). It also removes
the syscall from the auto-generation using assembly macros.
The macro SYSCALL_LL{64} is used to handle the offset argument along with
the new INTERNAL_SYSCALL_CALL macro to define correct argument count for
internal INTERNAL_SYSCALL call.
Tested on x86_64, i686, x32, aarch64, ppc64le, and armhf.
* io/Makefile (tests): Add tst-posix_fallocate and
tst-posix_fallocate64.
* io/tst-posix_fallocate-common.c: New file.
* io/tst-posix_fallocate.c: Likewise.
* io/tst-posix_fallocate64.c: Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/n32/posix_fallocate.c: Remove
file.
* sysdeps/unix/sysv/linux/mips/mips64/n32/posix_fallocate64.c:
Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/n64/posix_fallocate.c: Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/n64/posix_fallocate64.c:
Likewise.
* sysdeps/unix/sysv/linux/wordsize-64/posix_fallocate.c: Likewise.
* sysdeps/unix/sysv/linux/wordsize-64/posix_fallocate64.c: Likewise.
* sysdeps/unix/sysv/linux/posix_fallocate.c (posix_fallocate): Use
SYSCALL_LL to pass both offset and len arguments.
* sysdeps/unix/sysv/linux/posix_fallocate64.c (posix_fallocate64):
Likewise.
* sysdeps/unix/sysv/linux/x86_64/syscalls.list (pwrite64): Add
__libc_pwrite64 alias used by posix_fallocate64.
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Adhemerval Zanella
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6c63e2d8df |
Consolidate fallocate{64} implementations
This patch consolidates all the fallocate{64} implementation for Linux
in only one (sysdeps/unix/sysv/linux/fallocate{64}.c). It also removes the
syscall from the auto-generation using assembly macros.
The new macro SYSCALL_LL{64} is used to handle the offset argument.
Checked on x86_64, x32, i386, aarch64, and ppc64le.
* sysdeps/unix/sysv/linux/Makefile (test): Add tst-fallocate and
tst-fallocate64.
* sysdeps/unix/sysv/linux/tst-fallocate.c: New file.
* sysdeps/unix/sysv/linux/tst-fallocate64.c: Likewise.
* sysdeps/unix/sysv/linux/tst-fallocate-common.c: Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/n32/fallocate.c: Remove file.
* sysdeps/unix/sysv/linux/mips/mips64/n32/fallocate64.c: Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/n64/fallocate.c: Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/n64/fallocate64.c: Likewise.
* sysdeps/unix/sysv/linux/wordsize-64/fallocate.c: Likewise.
* sysdeps/unix/sysv/linux/wordsize-64/fallocate64.c: Likewise.
* sysdeps/unix/sysv/linux/fallocate.c (fallocate): Use SYSCALL_LL
macro on offset argument.
* sysdeps/unix/sysv/linux/fallocate64.c (fallocate64): Use
SYSCALL_LL64 on offset argument.
* test-skeleton.c (FAIL_RET): Add macro.
(FAIL_EXIT): Likewise.
(FAIL_EXIT1): Likewise.
(_FAIL): Likewise.
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Stefan Liebler
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314ba75e4a |
Use libc_ifunc macro for siglongjmp, longjmp in libpthread.
This patch uses the libc_ifunc macro to create already existing ifunc functions longjmp_ifunc, siglongjmp_ifunc if HAVE_IFUNC is defined. The s390 pt-longjmp.c includes the common pt-longjmp.c and uses strong_alias to create the longjmp, siglongjmp symbols for glibc version 2.19. ChangeLog: * nptl/pt-longjmp.c (DEFINE_LONGJMP): Use libc_ifunc macro. * sysdeps/unix/sysv/linux/s390/pt-longjmp.c (longjmp, siglongjmp): Use strong_alias to create symbols for glibc verison 2.19. |
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Stefan Liebler
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a4d7fe35cd |
ppc: Use libc_ifunc macro for time, gettimeofday.
This patch uses the libc_ifunc_hidden macro to create already existing ifunc functions time and gettimeofday on power. This way, the libc_hidden_def macro can be used instead of inline assemblies. On ppc32, the __GI_* symbols do not target the ifunc symbol and thus the redirection construct has to be applied here. ChangeLog: * sysdeps/unix/sysv/linux/powerpc/gettimeofday.c (__gettimeofday): Use libc_ifunc_hidden and libc_hidden_def macro. Redirect ifunced function in header for using it as type for ifunc function because __GI_* symbols for ppc32 do not target the ifunc symbols. * sysdeps/unix/sysv/linux/powerpc/time.c (time): Likewise. |
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Stefan Liebler
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e23faea6ae |
i386, x86: Use libc_ifunc macro for time, gettimeofday.
This patch uses the libc_ifunc_hidden macro to create already existing ifunc functions time and gettimeofday on intel. This way, the libc_hidden_def macro can be used instead of the libc_ifunc_hidden_def one which was only used here. Thus the macro is removed from libc-symbols.h. On i386, the __GI_* symbols do not target the ifunc symbol and thus the redirection construct has to be applied here. ChangeLog: * sysdeps/unix/sysv/linux/x86/gettimeofday.c (__gettimeofday): Use libc_ifunc_hidden macro. Use libc_hidden_def instead of libc_ifunc_hidden_def. * sysdeps/unix/sysv/linux/x86/time.c (time): Likewise. * sysdeps/unix/sysv/linux/i386/gettimeofday.c (__gettimeofday): Redirect ifunced function in header for using it as type of ifunc'ed function. Redefine libc_hidden_def to use fallback non ifunc'ed function for __GI_* symbol. * sysdeps/unix/sysv/linux/i386/time.c (time): Likewise. * include/libc-symbols.h (libc_ifunc_hidden_def, libc_ifunc_hidden_def1): Delete macro. |
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Joseph Myers
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1e7c8fcca5 |
Add iseqsig.
TS 18661-1 adds an iseqsig type-generic comparison macro to <math.h>. This macro is like the == operator except that unordered operands result in the "invalid" exception and errno being set to EDOM. This patch implements this macro for glibc. Given the need to set errno, this is implemented with out-of-line functions __iseqsigf, __iseqsig and __iseqsigl (of which the last only exists at all if long double is ABI-distinct from double, so no function aliases or compat support are needed). The present patch ignores excess precision issues; I intend to deal with those in a followup patch. (Like comparison operators, type-generic comparison macros should *not* convert operands to their semantic types but should preserve excess range and precision, meaning that for some argument types and values of FLT_EVAL_METHOD, an underlying function should be called for a wider type than that of the arguments.) The underlying functions are implemented with the type-generic template machinery. Comparing x <= y && x >= y is sufficient in ISO C to achieve an equality comparison with "invalid" raised for unordered operands (and the results of those two comparisons can also be used to tell whether errno needs to be set). However, some architectures have GCC bugs meaning that unordered comparison instructions are used instead of ordered ones. Thus, a mechanism is provided for architectures to use an explicit call to feraiseexcept to raise exceptions if required. If your architecture has such a bug you should add a fix-fp-int-compare-invalid.h header for it, with a comment pointing to the relevant GCC bug report; if such a GCC bug is fixed, that header's contents should have a __GNUC_PREREQ conditional added so that the workaround can eventually be removed for that architecture. Tested for x86_64, x86, mips64, arm and powerpc. * math/math.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (iseqsig): New macro. * math/bits/mathcalls.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (__iseqsig): New declaration. * math/s_iseqsig_template.c: New file. * math/Versions (__iseqsigf): New libm symbol at version GLIBC_2.25. (__iseqsig): Likewise. (__iseqsigl): Likewise. * math/libm-test.inc (iseqsig_test_data): New array. (iseqsig_test): New function. (main): Call iseqsig_test. * math/Makefile (gen-libm-calls): Add s_iseqsigF. * manual/arith.texi (FP Comparison Functions): Document iseqsig. * manual/libm-err-tab.pl: Update comment on interfaces without ulps tabulated. * sysdeps/generic/fix-fp-int-compare-invalid.h: New file. * sysdeps/powerpc/fpu/fix-fp-int-compare-invalid.h: Likewise. * sysdeps/x86/fpu/fix-fp-int-compare-invalid.h: Likewise. * sysdeps/nacl/libm.abilist: Update. * sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise. |
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Tulio Magno Quites Machado Filho
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22938c4103 |
powerpc: Installed-header hygiene
Fix powerpc-specific headers: - Make it compatible to C89 by replace references to inline by __inline__. - Get the definition of sigset_t used by sysdeps/unix/sysv/linux/powerpc/sys/ucontext.h. - Includes missing header file. |
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Joseph Myers
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29cb929332 |
Add iscanonical.
TS 18661-1 adds an iscanonical classification macro to <math.h>. The motivation for this is decimal floating-point, where some values have both canonical and noncanonical encodings. For IEEE binary interchange formats, all encodings are canonical. For x86/m68k ldbl-96, and for ldbl-128ibm, there are encodings that do not represent any valid value of the type; although formally iscanonical does not need to handle trap representations (and so could just always return 1), it seems useful, and in line with the description in the TS of "representations that are extraneous to the floating-point model" as being non-canonical (as well as "redundant representations of some or all of its values"), for it to detect those representations and return 0 for them. This patch adds iscanonical to glibc. It goes in a header <bits/iscanonical.h>, included under appropriate conditions in <math.h>. The default header version just evaluates the argument (converted to its semantic type, though current GCC will probably discard that conversion and any exceptions resulting from it) and returns 1. ldbl-96 and ldbl-128ibm then have versions of the header that call a function __iscanonicall for long double (the sizeof-based tests will of course need updating for float128 support, like other such type-generic macro implementations). The ldbl-96 version of __iscanonicall has appropriate conditionals to reflect the differences in the m68k version of that format (where the high mantissa bit may be either 0 or 1 when the exponent is 0 or 0x7fff). Corresponding tests for those formats are added as well. Other architectures do not have any new functions added because just returning 1 is correct for all their floating-point formats. Tested for x86_64, x86, mips64 (to test the default macro version) and powerpc. * math/math.h [__GLIBC_USE (IEC_60559_BFP_EXT)]: Include <bits/iscanonical.h>. * bits/iscanonical.h: New file. * math/s_iscanonicall.c: Likewise. * math/Versions (__iscanonicall): New libm symbol at version GLIBC_2.25. * math/libm-test.inc (iscanonical_test_data): New array. (iscanonical_test): New function. (main): Call iscanonical_test. * math/Makefile (headers): Add bits/iscanonical.h. (type-ldouble-routines): Add s_iscanonicall. * manual/arith.texi (Floating Point Classes): Document iscanonical. * manual/libm-err-tab.pl: Update comment on interfaces without ulps tabulated. * sysdeps/ieee754/ldbl-128ibm/bits/iscanonical.h: New file. * sysdeps/ieee754/ldbl-128ibm/s_iscanonicall.c: Likewise. * sysdeps/ieee754/ldbl-128ibm/test-iscanonical-ldbl-128ibm.c: Likewise. * sysdeps/ieee754/ldbl-128ibm/Makefile (tests): Add test-iscanonical-ldbl-128ibm. * sysdeps/ieee754/ldbl-96/bits/iscanonical.h: New file. * sysdeps/ieee754/ldbl-96/s_iscanonicall.c: Likewise. * sysdeps/ieee754/ldbl-96/test-iscanonical-ldbl-96.c: Likewise. * sysdeps/ieee754/ldbl-96/Makefile: Likewise. * sysdeps/unix/sysv/linux/i386/libm.abilist: Update. * sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise. |
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Adhemerval Zanella
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e83be73091 |
posix: Fix open file action for posix_spawn on Linux
On posix_spawn open file action (issued by posix_spawn_file_actions_addopen) POSIX states that if fildes was already an open file descriptor, it shall be closed before the new file is openedi [1]. This avoid pontential issues when posix_spawn plus addopen action is called with the process already at maximum number of file descriptor opened and also for multiple actions on single-open special paths (like /dev/watchdog). This fixes its behavior on Linux posix_spawn implementation and also adds a tests to check for its behavior. Checked on x86_64. * posix/Makefile (tests): Add tst-spawn3. * posix/tst-spawn3.c: New file. * sysdeps/unix/sysv/linux/spawni.c (__spawni_child): Close file descriptor if it is already opened for open action. [1] http://pubs.opengroup.org/onlinepubs/9699919799/functions/posix_spawn_file_actions_addclose.html |
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Rasmus Villemoes
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4b4d4056bb |
linux: spawni.c: simplify error reporting to parent
Using CLONE_VFORK already ensures that the parent does not run until the child has either exec'ed succesfully or called _exit. Hence we don't need to read from a CLOEXEC pipe to ensure proper synchronization - we just make explicit use of the fact the the child and parent run in the same VM, so the child can write an error code to a field of the posix_spawn_args struct instead of sending it through a pipe. To ensure that this mechanism really works, the parent initializes the field to -1 and the child writes 0 before execing. This eliminates some annoying bookkeeping that is necessary to avoid the file actions from clobbering the write end of the pipe, and getting rid of the pipe creation in the first place means fewer system calls (four in the parent, usually one in the child) and fewer chanches for the spawn to fail (e.g. if we're close to EMFILE). Checked on x86_64 and i686. * sysdeps/unix/sysv/linux/spawni.c (posix_spawn_args): Remove pipe field, add err field. (__spawni_child): Report error through err member instead of pipe. (__spawnix): Likewise. |
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Zack Weinberg
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32daf20b54 |
Minor correction to the "installed header hygiene" patches.
* sysdeps/unix/sysv/linux/s390/sys/ucontext.h: Restore accidentally- deleted typedef ucontext_t. |
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Zack Weinberg
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4775578486 |
Installed header hygiene (BZ#20366): Test of installed headers.
This adds a test to ensure that the problems fixed in the last several patches do not recur. Each directory checks the headers that it installs for two properties: first, each header must be compilable in isolation, as both C and C++, under a representative combination of language and library conformance levels; second, there is a blacklist of identifiers that may not appear in any installed header, currently consisting of the legacy BSD typedefs. (There is an exemption for the headers that define those typedefs, and for the RPC headers. It may be necessary to make this more sophisticated if we add more stuff to the blacklist in the future.) In order for this test to work correctly, every wrapper header that actually defines something must guard those definitions with #ifndef _ISOMAC. This is the existing mechanism used by the conform/ tests to tell wrapper headers not to define anything that the public header wouldn't, and not to use anything from libc-symbols.h. conform/ only cares for headers that we need to check for standards conformance, whereas this test applies to *every* header. (Headers in include/ that are either installed directly, or are internal-use-only and do *not* correspond to any installed header, are not affected.) * scripts/check-installed-headers.sh: New script. * Rules: In each directory that defines header files to be installed, run check-installed-headers.sh on them as a special test. * Makefile: Likewise for the headers installed at top level. * include/aliases.h, include/alloca.h, include/argz.h * include/arpa/nameser.h, include/arpa/nameser_compat.h * include/elf.h, include/envz.h, include/err.h * include/execinfo.h, include/fpu_control.h, include/getopt.h * include/gshadow.h, include/ifaddrs.h, include/libintl.h * include/link.h, include/malloc.h, include/mcheck.h * include/mntent.h, include/netinet/ether.h * include/nss.h, include/obstack.h, include/printf.h * include/pty.h, include/resolv.h, include/rpc/auth.h * include/rpc/auth_des.h, include/rpc/auth_unix.h * include/rpc/clnt.h, include/rpc/des_crypt.h * include/rpc/key_prot.h, include/rpc/netdb.h * include/rpc/pmap_clnt.h, include/rpc/pmap_prot.h * include/rpc/pmap_rmt.h, include/rpc/rpc.h * include/rpc/rpc_msg.h, include/rpc/svc.h * include/rpc/svc_auth.h, include/rpc/xdr.h * include/rpcsvc/nis_callback.h, include/rpcsvc/nislib.h * include/rpcsvc/yp.h, include/rpcsvc/ypclnt.h * include/rpcsvc/ypupd.h, include/shadow.h * include/stdio_ext.h, include/sys/epoll.h * include/sys/file.h, include/sys/gmon.h, include/sys/ioctl.h * include/sys/prctl.h, include/sys/profil.h * include/sys/statfs.h, include/sys/sysctl.h * include/sys/sysinfo.h, include/ttyent.h, include/utmp.h * sysdeps/arm/nacl/include/bits/setjmp.h * sysdeps/mips/include/sys/asm.h * sysdeps/unix/sysv/linux/include/sys/sysinfo.h * sysdeps/unix/sysv/linux/include/sys/timex.h * sysdeps/x86/fpu/include/bits/fenv.h: Add #ifndef _ISOMAC guard around internal declarations. Add multiple-inclusion guard if not already present. |
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Zack Weinberg
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c66b29f9cc |
Installed-header hygiene (BZ#20366): stack_t.
sys/ucontext.h unconditionally uses stack_t, and it does not make sense to change that. But signal.h only declares stack_t under __USE_XOPEN_EXTENDED || __USE_XOPEN2K8. The actual definition is already in a bits header, bits/sigstack.h, but that header insists on only being included by signal.h, so we have to change that as well as all of the sys/ucontext.h variants. (Some but not all variants of bits/sigcontext.h, which sys/ucontext.h may also need, had already received this adjustment; for consistency, I made them all the same, even if that's not strictly necessary in some configurations.) bits/sigcontext.h and bits/sigstack.h also all need to receive multiple inclusion guards. * sysdeps/generic/sys/ucontext.h * sysdeps/arm/sys/ucontext.h * sysdeps/i386/sys/ucontext.h * sysdeps/m68k/sys/ucontext.h * sysdeps/mips/sys/ucontext.h * sysdeps/unix/sysv/linux/aarch64/sys/ucontext.h * sysdeps/unix/sysv/linux/alpha/sys/ucontext.h * sysdeps/unix/sysv/linux/arm/sys/ucontext.h * sysdeps/unix/sysv/linux/hppa/sys/ucontext.h * sysdeps/unix/sysv/linux/ia64/sys/ucontext.h * sysdeps/unix/sysv/linux/m68k/sys/ucontext.h * sysdeps/unix/sysv/linux/mips/sys/ucontext.h * sysdeps/unix/sysv/linux/nios2/sys/ucontext.h * sysdeps/unix/sysv/linux/powerpc/sys/ucontext.h * sysdeps/unix/sysv/linux/s390/sys/ucontext.h * sysdeps/unix/sysv/linux/sh/sys/ucontext.h * sysdeps/unix/sysv/linux/sparc/sys/ucontext.h * sysdeps/unix/sysv/linux/tile/sys/ucontext.h * sysdeps/unix/sysv/linux/x86/sys/ucontext.h: Include both bits/sigcontext.h and bits/sigstack.h. Fix grammar error in comment, if present. * bits/sigstack.h * sysdeps/unix/sysv/linux/aarch64/bits/sigstack.h * sysdeps/unix/sysv/linux/alpha/bits/sigstack.h * sysdeps/unix/sysv/linux/bits/sigstack.h * sysdeps/unix/sysv/linux/ia64/bits/sigstack.h * sysdeps/unix/sysv/linux/mips/bits/sigstack.h * sysdeps/unix/sysv/linux/powerpc/bits/sigstack.h * sysdeps/unix/sysv/linux/sparc/bits/sigstack.h * bits/sigcontext.h * sysdeps/mach/hurd/i386/bits/sigcontext.h * sysdeps/unix/sysv/linux/bits/sigcontext.h * sysdeps/unix/sysv/linux/ia64/bits/sigcontext.h * sysdeps/unix/sysv/linux/sparc/bits/sigcontext.h: Add multiple inclusion guard. Permit inclusion by sys/ucontext.h as well as signal.h, if this was not already allowed. Request definition of size_t if necessary. Minimize semantically-null differences across files. |
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Zack Weinberg
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05b68e14b1 |
Installed-header hygiene (BZ#20366): time.h types.
Many headers are expected to expose a subset of the type definitions
in time.h. time.h has a whole bunch of messy logic for conditionally
defining some its types and structs, but, as best I can tell, this
has never worked 100%. In particular, __need_timespec is ineffective
if _TIME_H has already been defined, which means that if you compile
#include <time.h>
#include <sched.h>
with e.g. -fsyntax-only -std=c89 -Wall -Wsystem-headers, you will get
In file included from test.c:2:0:
/usr/include/sched.h:74:57: warning: "struct timespec" declared inside
parameter list will not be visible outside of this definition or declaration
extern int sched_rr_get_interval (__pid_t __pid, struct timespec *__t) __THROW;
^~~~~~~~
And if you want to _use_ sched_rr_get_interval in a TU compiled that
way, you're hosed.
This patch replaces all of that with small bits/types/TYPE.h headers
as introduced earlier. time.h and bits/time.h are now *much* simpler,
and a lot of other headers are slightly simpler.
* time/time.h, bits/time.h, sysdeps/unix/sysv/linux/bits/time.h:
Remove all logic conditional on __need macros. Move all the
conditionally defined types to their own headers...
* time/bits/types/clock_t.h: Define clock_t here.
* time/bits/types/clockid_t.h: Define clockid_t here.
* time/bits/types/struct_itimerspec.h: Define struct itimerspec here.
* time/bits/types/struct_timespec.h: Define struct timespec here.
* time/bits/types/struct_timeval.h: Define struct timeval here.
* time/bits/types/struct_tm.h: Define struct tm here.
* time/bits/types/time_t.h: Define time_t here.
* time/bits/types/timer_t.h: Define timer_t here.
* time/Makefile: Install the new headers.
* bits/resource.h, io/fcntl.h, io/sys/poll.h, io/sys/stat.h
* io/utime.h, misc/sys/select.h, posix/sched.h, posix/sys/times.h
* posix/sys/types.h, resolv/netdb.h, rt/aio.h, rt/mqueue.h
* signal/signal.h, pthread/semaphore.h, sysdeps/nptl/pthread.h
* sysdeps/unix/sysv/linux/alpha/bits/resource.h
* sysdeps/unix/sysv/linux/alpha/sys/acct.h
* sysdeps/unix/sysv/linux/bits/resource.h
* sysdeps/unix/sysv/linux/bits/timex.h
* sysdeps/unix/sysv/linux/mips/bits/resource.h
* sysdeps/unix/sysv/linux/net/ppp_defs.h
* sysdeps/unix/sysv/linux/sparc/bits/resource.h
* sysdeps/unix/sysv/linux/sys/acct.h
* sysdeps/unix/sysv/linux/sys/timerfd.h
* sysvipc/sys/msg.h, sysvipc/sys/sem.h, sysvipc/sys/shm.h
* time/sys/time.h, time/sys/timeb.h
Use the new bits/types headers.
* include/time.h: Remove __need logic.
* include/bits/time.h
* include/bits/types/clock_t.h, include/bits/types/clockid_t.h
* include/bits/types/time_t.h, include/bits/types/timer_t.h
* include/bits/types/struct_itimerspec.h
* include/bits/types/struct_timespec.h
* include/bits/types/struct_timeval.h
* include/bits/types/struct_tm.h:
New wrapper headers.
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Zack Weinberg
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f2bea4da2e |
Installed-header hygiene (BZ#20366): conditionally defined structures.
Several network-related structures are defined conditionally under
__USE_MISC, but unconditionally used by other headers. The path of
least resistance is usually to condition the uses on __USE_MISC as
well.
* sysdeps/mach/hurd/net/if_ppp.h
* sysdeps/unix/sysv/linux/net/if_ppp.h:
Only define struct ifpppstatsreq and struct ifpppcstatsreq
if __USE_MISC is defined, to ensure struct ifreq is declared.
* inet/netinet/ether.h: Condition all function prototypes
on __USE_MISC, to ensure struct ether_addr is declared.
sys/socket.h defines struct osockaddr only under __USE_MISC, whereas
protocols/talkd.h requires it unconditionally. Here it doesn't make
sense to condition the entire body of protocols/talkd.h on __USE_MISC.
Rather than complicate sys/socket.h with a __need macro or duplicate
the definition, I am introducing a new concept: tiny headers named
bits/types/TYPE.h that define TYPE and nothing else. This can, I hope,
ultimately replace *all* the __need macros. The guard macro for such
headers will be __TYPE_defined, just in case application or third-party
library code is looking at them.
* socket/bits/types/struct_osockaddr.h: New header.
* include/bits/types/struct_osockaddr.h: New wrapper.
* socket/Makefile: Install the new header.
* socket/sys/socket.h, inet/protocols/talkd.h:
Refer to bits/types/struct_osockaddr.h for the definition of
struct osockaddr.
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