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glibc/sysdeps/x86_64
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H.J. Lu 70fe2eb794 x86-64: Implement strcspn/strpbrk/strspn IFUNC selectors in C 
Implement strcspn/strpbrk/strspn IFUNC selectors in C

All internal calls within libc.so can use IFUNC on x86-64 since unlike
x86, x86-64 supports PC-relative addressing to access the GOT entry so
that it can call via PLT without using an extra register.  For libc.a,
we can't use IFUNC for functions which are called before IFUNC has been
initialized.  Use IFUNC internally reduces the icache footprint since
libc.so and other codes in the process use the same implementations.
This patch uses IFUNC for strcspn/strpbrk/strspn functions within libc.

	* sysdeps/x86_64/multiarch/Makefile (sysdep_routines): Add
	strcspn-sse2, strpbrk-sse2 and strspn-sse2.
	* sysdeps/x86_64/strcspn.S (STRPBRK_P): Removed.
	Check USE_AS_STRPBRK instead of STRPBRK_P.
	* sysdeps/x86_64/strpbrk.S (USE_AS_STRPBRK): New.
	* sysdeps/x86_64/multiarch/ifunc-sse4_2.h: New file.
	* sysdeps/x86_64/multiarch/strcspn-sse2.S: Likewise.
	* sysdeps/x86_64/multiarch/strcspn.c: Likewise.
	* sysdeps/x86_64/multiarch/strpbrk-sse2.S: Likewise.
	* sysdeps/x86_64/multiarch/strpbrk.c: Likewise.
	* sysdeps/x86_64/multiarch/strspn-sse2.S: Likewise.
	* sysdeps/x86_64/multiarch/strspn.c: Likewise.
	* sysdeps/x86_64/multiarch/strcspn.S: Removed.
	* sysdeps/x86_64/multiarch/strpbrk.S: Likewise.
	* sysdeps/x86_64/multiarch/strspn.S: Likewise.
	* sysdeps/x86_64/multiarch/strpbrk-c.c: Remove "#ifdef SHARED"
	and "#endif".
 		2017-06-15 08:59:05 -07:00
..
64
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fpu Remove __need macros from errno.h (__need_Emath, __need_error_t). 2017-06-14 08:14:34 -04:00
multiarch x86-64: Implement strcspn/strpbrk/strspn IFUNC selectors in C 2017-06-15 08:59:05 -07:00
nptl Remove CALL_THREAD_FCT macro 2017-04-04 18:03:35 -03:00
x32 Remove CALL_THREAD_FCT macro 2017-04-04 18:03:35 -03:00
Implies
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Makefile x86-64: Verify that _dl_runtime_resolve preserves vector registers 2017-02-09 12:19:58 -08:00
Versions
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____longjmp_chk.S
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__longjmp.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
_mcount.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
abort-instr.h
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add_n.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
addmul_1.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
atomic-machine.h Optimize generic spinlock code and use C11 like atomic macros. 2017-06-06 09:41:56 +02:00
backtrace.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
bsd-_setjmp.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
bsd-setjmp.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
bzero.S
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configure
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configure.ac
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crti.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
crtn.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
dl-irel.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
dl-lookupcfg.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
dl-machine.h PowerPC64 ELFv2 PPC64_OPT_LOCALENTRY 2017-06-14 10:47:25 +09:30
dl-procinfo.c Add sysdeps/x86/dl-procinfo.c 2017-04-10 12:01:45 -07:00
dl-runtime.c
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dl-tls.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
dl-tlsdesc.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
dl-tlsdesc.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
dl-trampoline.S x86-64: Improve branch predication in _dl_runtime_resolve_avx512_opt [BZ #21258] 2017-03-21 11:00:12 -07:00
dl-trampoline.h x86-64: Improve branch predication in _dl_runtime_resolve_avx512_opt [BZ #21258] 2017-03-21 11:00:12 -07:00
ffs.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
ffsll.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
hp-timing.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
htonl.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
ifuncmain8.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
ifuncmod8.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
jmpbuf-offsets.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
jmpbuf-unwind.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
l10nflist.c
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ldbl2mpn.c
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ldsodefs.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
link-defines.sym
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locale-defines.sym
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localplt.data Document and fix --enable-bind-now [BZ #21015] 2017-03-02 14:44:28 +01:00
lshift.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
machine-gmon.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
memchr.S x86-64: Optimize memchr/rawmemchr/wmemchr with SSE2/AVX2 2017-06-09 05:13:31 -07:00
memcmp.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
memcopy.h
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memcpy.S
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memcpy_chk.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
memmove.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
memmove_chk.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
mempcpy.S
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mempcpy_chk.S x86_64: fix static build of __mempcpy_chk for compilers defaulting to PIC/PIE 2017-03-15 16:10:05 -07:00
memrchr.S x86_64: Remove redundant REX bytes from memrchr.S 2017-06-05 07:41:26 -07:00
memset.S x86-64: Optimize wmemset with SSE2/AVX2/AVX512 2017-06-05 11:09:59 -07:00
memset_chk.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
memusage.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
mp_clz_tab.c
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mul_1.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
preconfigure
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preconfigure.ac
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rawmemchr.S x86_64: Remove L(return_null) from rawmemchr.S 2017-05-20 06:13:38 -07:00
rshift.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
sched_cpucount.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
setjmp.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
stack-aliasing.h
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stackguard-macros.h
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stackinfo.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
start.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
stpcpy.S
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strcasecmp.S
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strcasecmp_l-nonascii.c
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strcasecmp_l.S
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strcat.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strchr.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strchrnul.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strcmp.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strcpy.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strcspn.S x86-64: Implement strcspn/strpbrk/strspn IFUNC selectors in C 2017-06-15 08:59:05 -07:00
strlen.S x86-64: Update strlen.S to support wcslen/wcsnlen 2017-06-05 07:58:23 -07:00
strncase.S
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strncase_l-nonascii.c
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strncase_l.S
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strncmp.S
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strnlen.S
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strpbrk.S x86-64: Implement strcspn/strpbrk/strspn IFUNC selectors in C 2017-06-15 08:59:05 -07:00
strrchr.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strspn.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
sub_n.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
submul_1.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
sysdep.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tls-macros.h
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tlsdesc.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tlsdesc.sym
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tst-audit.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-audit3.c
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tst-audit4-aux.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-audit4.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-audit5.c
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tst-audit6.c
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tst-audit7.c
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tst-audit10-aux.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-audit10.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-auditmod3a.c
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tst-auditmod3b.c Add missing header files throughout the testsuite. 2017-02-16 17:33:18 -05:00
tst-auditmod4a.c
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tst-auditmod4b.c Add missing header files throughout the testsuite. 2017-02-16 17:33:18 -05:00
tst-auditmod5a.c
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tst-auditmod5b.c Add missing header files throughout the testsuite. 2017-02-16 17:33:18 -05:00
tst-auditmod6a.c
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tst-auditmod6b.c Add missing header files throughout the testsuite. 2017-02-16 17:33:18 -05:00
tst-auditmod6c.c Add missing header files throughout the testsuite. 2017-02-16 17:33:18 -05:00
tst-auditmod7a.c
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tst-auditmod7b.c Add missing header files throughout the testsuite. 2017-02-16 17:33:18 -05:00
tst-auditmod10a.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-auditmod10b.c Add missing header files throughout the testsuite. 2017-02-16 17:33:18 -05:00
tst-avx-aux.c x86-64: Verify that _dl_runtime_resolve preserves vector registers 2017-02-09 12:19:58 -08:00
tst-avx.c x86-64: Verify that _dl_runtime_resolve preserves vector registers 2017-02-09 12:19:58 -08:00
tst-avx512-aux.c x86-64: Verify that _dl_runtime_resolve preserves vector registers 2017-02-09 12:19:58 -08:00
tst-avx512.c x86-64: Verify that _dl_runtime_resolve preserves vector registers 2017-02-09 12:19:58 -08:00
tst-avx512mod.c x86-64: Verify that _dl_runtime_resolve preserves vector registers 2017-02-09 12:19:58 -08:00
tst-avxmod.c x86-64: Verify that _dl_runtime_resolve preserves vector registers 2017-02-09 12:19:58 -08:00
tst-mallocalign1.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-quad1.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-quad1pie.c
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tst-quad2.c
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tst-quad2pie.c
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tst-quadmod1.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-quadmod1pie.S
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tst-quadmod2.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-quadmod2pie.S
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tst-split-dynreloc.c
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tst-split-dynreloc.lds
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tst-sse.c x86-64: Verify that _dl_runtime_resolve preserves vector registers 2017-02-09 12:19:58 -08:00
tst-ssemod.c x86-64: Verify that _dl_runtime_resolve preserves vector registers 2017-02-09 12:19:58 -08:00
tst-stack-align.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
wcschr.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
wcscmp.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
wcslen.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
wcsrchr.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
wmemset.S x86-64: Optimize wmemset with SSE2/AVX2/AVX512 2017-06-05 11:09:59 -07:00
wmemset_chk.S x86-64: Optimize wmemset with SSE2/AVX2/AVX512 2017-06-05 11:09:59 -07:00
wordcopy.c
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