For maximum paranoia we run ld.so through the normal set
of tests for all of the shared libraries. This includes
running ld.so through check-localplt, check-textrel, and
check-execstack. While none of these should trigger any
failures given the way ld.so is built, it might possibly
fail if a developer does something wrong. This paranoia
was triggered by a discussion over the use of __strcpy
vs. strcpy [1] and if the symbol could leak and use the
libc.so version.
The check-localplt test fails right away because localplt.data
needs updating for all arches. By default we add 6 new symbols:
__tls_get_addr, __libc_memalign, malloc, calloc, realloc and
free. Other machines like i386, power, and s390 require some
different symbol sets e.g. ___tls_get_addr vs. __tls_get_addr
for i386.
Verified for i386
Verified for x86_64
Verified for ppc32
Verified for ppc64
Verified for ppc64le
Verified for arm
Verified for aarch64
Verified for s390
Verified for s390x
Guessed for alpha
Guessed for ia64
Guessed for m68k
Guessed for microblaze
Guessed for sparc32
Guessed for sparc64
Defaults for sh
Defaults for mips
Defaults for hppa
Defaults for tile
Machine manintainers notified to double check the data
used in localplt.data.
[1] https://sourceware.org/ml/libc-alpha/2014-10/msg00548.html
This patch removes the first column (patterns matching configuration
names) from shlib-versions, leaving shlib-versions entry selection
based purely on sysdeps directories.
An implication of this removal is that the default for any non-Linux
ports using NPTL will be the same SONAMEs for NPTL libraries as for
Linux (as those defaults, previously limited to .*-.*-linux.*, are
left in nptl/shlib-versions and nptl_db/shlib-versions).
Special host_os handling in configure.ac that was purely for
shlib-versions is removed. (The host_os setting is still used for
libc-abis - see
<https://sourceware.org/ml/libc-alpha/2014-01/msg00375.html> regarding
that - but no entries there are affected by this change.)
Tested on x86_64 and x86 that the installed shared libraries are
unchanged by this patch.
* scripts/soversions.awk: Do not handle configuration names.
* Makeconfig ($(common-objpfx)soversions.i): Do not pass cpu,
vendor and os variables to soversions.awk.
* configure.ac: Do not modify gnu-* host_os.
* configure: Regenerated
* shlib-versions: Remove first column with configuration names.
* nptl/shlib-versions: Likewise.
* nptl_db/shlib-versions: Likewise.
* sysdeps/hppa/shlib-versions: Likewise.
* sysdeps/m68k/shlib-versions: Likewise.
* sysdeps/mach/hurd/shlib-versions: Likewise.
* sysdeps/unix/sysv/linux/aarch64/shlib-versions: Likewise.
* sysdeps/unix/sysv/linux/alpha/shlib-versions: Likewise.
* sysdeps/unix/sysv/linux/arm/shlib-versions: Likewise.
* sysdeps/unix/sysv/linux/hppa/shlib-versions: Likewise.
* sysdeps/unix/sysv/linux/ia64/shlib-versions: Likewise.
* sysdeps/unix/sysv/linux/m68k/coldfire/shlib-versions: Likewise.
* sysdeps/unix/sysv/linux/microblaze/shlib-versions: Likewise.
* sysdeps/unix/sysv/linux/mips/shlib-versions: Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/shlib-versions:
Likewise.
* sysdeps/unix/sysv/linux/s390/s390-64/shlib-versions: Likewise.
* sysdeps/unix/sysv/linux/sh/shlib-versions: Likewise.
* sysdeps/unix/sysv/linux/shlib-versions: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc32/shlib-versions: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc64/shlib-versions: Likewise.
* sysdeps/unix/sysv/linux/tile/shlib-versions: Likewise.
* sysdeps/unix/sysv/linux/x86_64/64/shlib-versions: Likewise.
* sysdeps/unix/sysv/linux/x86_64/x32/shlib-versions: Likewise.
libidn/ChangeLog:
* shlib-versions: Remove first column with configuration names.
The previous set of not-cancel.h headers (prior to the commit
2fbdf5339a) did not require the
arch to define nocancel entry points, so ia64 never did.
However, after the various files were merged, it became a hard
requirement for arches which mean ia64 failed to build.
Here we add dedicated entry points. It'd be nice to merge
with the existing stubs like other arches do, but the ia64
asm does not lend itself to interleaving of functions. If
someone has a suggestion on merging these, that'd be great,
but at least now we build & pass tests again.
Various architectures have files such as sysdeps/<arch>/shlib-versions
whose contents are in fact entirely Linux-specific, relating only to
the symbol / shared library versions for the port to Linux on that
architecture, when any future port to a different OS on that
architecture would use the symbol version of the glibc release it goes
in, as standard for new ports.
This patch moves such files under sysdeps/unix/sysv/linux/, merging in
the contents of sysdeps/<arch>/nptl/shlib-versions in the process.
The only bits not moved are those relating to libgcc_s versions, which
don't appear OS-specific in the same way that glibc's symbol versions
so. It deliberately does not change the regular expressions given for
matching configurations in each file; some match only Linux although
not Linux-specific, or match other OSes although Linux-specific. It
is with a view to at least the following further cleanups:
* Move architecture-specific content from the toplevel shlib-versions
and nptl/shlib-versions into sysdeps shlib-versions files, so
eliminating another difference between ex-ports and non-ex-ports
architectures.
* Likewise, for OS-specific content in shlib-versions files.
* At that point, the first field in shlib-versions files (the regular
expression matching a configuration triplet) should be redundant, so
eliminate that field and leave shlib-versions selection working
purely on a sysdeps basis (with limited use of %ifdef in
shlib-versions files when needed) rather than having its own
separate mechanism to select what configuration information is
relevant.
* Move the build of gnu/lib-names.h to a similar mechanism to that
used for gnu/stubs.h (each library build installing a version of the
header specifically for that build), so we can eliminate the
duplication of soname information in the makefiles and get it purely
from shlib-versions files again.
There may be other cleanups possible as well (in particular, I'm not
sure that all cases where the same "Earliest symbol set" information
is repeated for many different libraries actually should need to
repeat it rather than specifying it just once for DEFAULT for the
given configuration, and separately specifying any non-default choices
of soname).
Tested x86_64 that the installed shared libraries are unchanged by
this patch.
* sysdeps/aarch64/shlib-versions: Move to ...
* sysdeps/unix/sysv/linux/aarch64/shlib-versions: ... here.
* sysdeps/alpha/shlib-versions: Move to ...
* sysdeps/unix/sysv/linux/alpha/shlib-versions: ... here.
* sysdeps/arm/shlib-versions: Move to ...
* sysdeps/unix/sysv/linux/arm/shlib-versions: ... here.
* sysdeps/hppa/shlib-versions: Move all contents except for
libgcc_s entry to ...
* sysdeps/unix/sysv/linux/hppa/shlib-versions: ... here. Merge in
entry from ...
* sysdeps/hppa/nptl/shlib-versions: ... here. Remove file.
* sysdeps/ia64/shlib-versions: Move to ...
* sysdeps/unix/sysv/linux/ia64/shlib-versions: ... here. Merge in
entry from ...
* sysdeps/ia64/nptl/shlib-versions: ... here. Remove file.
* sysdeps/m68k/coldfire/shlib-versions: Move to ...
* sysdeps/unix/sysv/linux/m68k/coldfire/shlib-versions: ... here.
* sysdeps/microblaze/shlib-versions: Move to ...
* sysdeps/unix/sysv/linux/microblaze/shlib-versions: ... here.
* sysdeps/mips/shlib-versions: Move to ...
* sysdeps/unix/sysv/linux/mips/shlib-versions: ... here. Merge in
entry from ...
* sysdeps/mips/nptl/shlib-versions: ... here. Remove file.
* sysdeps/tile/shlib-versions: Move to ...
* sysdeps/unix/sysv/linux/tile/shlib-versions: ... here.
* sysdeps/unix/sysv/linux/x86_64/64/shlib-versions: Merge in entry
from ...
* sysdeps/x86_64/64/shlib-versions: ... here. Remove file.
* sysdeps/unix/sysv/linux/x86_64/x32/shlib-versions: Merge in
entry from ...
* sysdeps/x86_64/x32/shlib-versions: ... here. Remove file.
This patch relies on the C version of the rwlocks posted earlier.
With C rwlocks it is very straight forward to do adaptive elision
using TSX. It is based on the infrastructure added earlier
for mutexes, but uses its own elision macros. The macros
are fairly general purpose and could be used for other
elision purposes too.
This version is much cleaner than the earlier assembler based
version, and in particular implements adaptation which makes
it safer.
I changed the behavior slightly to not require any changes
in the test suite and fully conform to all expected
behaviors (generally at the cost of not eliding in
various situations). In particular this means the timedlock
variants are not elided. Nested trylock aborts.
This patch reduces duplication between different architectures'
kernel-features.h files by making the architecture-independent file
define various macros unconditionally (instead of only for a
particular list of architectures), with the architecture-specific
files then undefining the macros if necessary.
Specifically, __ASSUME_O_CLOEXEC (O_CLOEXEC flag to open) and
__ASSUME_SOCK_CLOEXEC (SOCK_NONBLOCK and SOCK_CLOEXEC flags to socket)
are supported on all architectures as of 2.6.32 or the minimum kernel
version for the architecture if later. For __ASSUME_IN_NONBLOCK,
__ASSUME_PIPE2, __ASSUME_EVENTFD2, __ASSUME_SIGNALFD4 and
__ASSUME_DUP3, the relevant syscalls were added for alpha in 2.6.33
but otherwise the features are available as of 2.6.32. For
__ASSUME_UTIMES, support is everywhere in 2.6.32 except for
asm-generic architectures and hppa.
Although those were the main cases of duplication among
kernel-features.h files, some other cases of unnecessary definitions
were also cleaned up: the hppa file defined various macros that were
either no longer used at all, or defined by the main file by default
anyway, the ia64 file had duplicative definitions of __ASSUME_PSELECT
and __ASSUME_PPOLL, while mips had such a definition of
__ASSUME_IPC64.
Really, rather than being defined in the main file then undefined for
asm-generic architectures, __ASSUME_UTIMES should become an
hppa-specific macro. Given that __ASSUME_ATFCTS and
__ASSUME_UTIMENSAT are now always true, the only live __ASSUME_UTIMES
conditional is in sysdeps/unix/sysv/linux/utimes.c, which is not used
for asm-generic architectures. I think the desired state would be an
hppa-specific file (that includes sysdeps/unix/sysv/linux/utimes.c if
__ASSUME_UTIMES, and otherwise has fallback code), with the fallback
code being removed from the main utimes.c. But I think that's most
reasonably a separate cleanup once __ASSUME_ATFCTS and
__ASSUME_UTIMESAT have both had conditional code cleaned up.
Given this patch, I think it's straightforward to move non-ex-ports
architectures to having their own kernel-features.h files, like
ex-ports architectures, rather than conditionals in the main file
(i.e., such a move won't require the architecture-specific file to
contain anything that isn't genuinely architecture-specific), and
would encourage architecture maintainers to do so.
Tested x86_64 that the installed shared libraries are unchanged by
this patch. Note that on some architectures this *will* cause
__ASSUME_* macros to be defined in cases where they weren't previously
but should have been (but this is just optimization, not a fix to a
user-visible bug, so doesn't need a bug report in Bugzilla).
* sysdeps/unix/sysv/linux/kernel-features.h (__ASSUME_UTIMES):
Define unconditionally.
(__ASSUME_O_CLOEXEC): Likewise.
(__ASSUME_SOCK_CLOEXEC): Likewise.
(__ASSUME_IN_NONBLOCK): Likewise.
(__ASSUME_PIPE2): Likewise.
(__ASSUME_EVENTFD2): Likewise.
(__ASSUME_SIGNALFD4): Likewise.
(__ASSUME_DUP3): Likewise.
* sysdeps/unix/sysv/linux/aarch64/kernel-features.h
(__ASSUME_DUP3): Do not define.
(__ASSUME_EVENTFD2): Likewise.
(__ASSUME_IN_NONBLOCK): Likewise.
(__ASSUME_O_CLOEXEC): Likewise.
(__ASSUME_PIPE2): Likewise.
(__ASSUME_SIGNALFD4): Likewise.
(__ASSUME_SOCK_CLOEXEC): Likewise.
(__ASSUME_UTIMES): Undefine.
* sysdeps/unix/sysv/linux/alpha/kernel-features.h
(__ASSUME_UTIMES): Do not define.
(__ASSUME_O_CLOEXEC): Likewise.
(__ASSUME_SOCK_CLOEXEC): Likewise.
(__ASSUME_IN_NONBLOCK): Undefine if [__LINUX_KERNEL_VERSION <
0x020621] instead of defining if [__LINUX_KERNEL_VERSION >=
0x020621].
(__ASSUME_PIPE2): Likewise.
(__ASSUME_EVENTFD2): Likewise.
(__ASSUME_SIGNALFD4): Likewise.
[__LINUX_KERNEL_VERSION < 0x020621] (__ASSUME_DUP3): Undefine.
* sysdeps/unix/sysv/linux/arm/kernel-features.h (__ASSUME_UTIMES):
Do not define.
(__ASSUME_EVENTFD2): Likewise.
(__ASSUME_SIGNALFD4): Likewise.
* sysdeps/unix/sysv/linux/hppa/kernel-features.h
(__ASSUME_32BITUIDS): Likewise.
(__ASSUME_TRUNCATE64_SYSCALL): Likewise.
(__ASSUME_IPC64): Likewise.
(__ASSUME_ST_INO_64_BIT): Likewise.
(__ASSUME_GETDENTS64_SYSCALL): Likewise.
[__LINUX_KERNEL_VERSION < 0x030e00] (__ASSUME_UTIMES): Undefine.
* sysdeps/unix/sysv/linux/ia64/kernel-features.h
(__ASSUME_UTIMES): Do not define.
(__ASSUME_PSELECT): Likewise.
(__ASSUME_PPOLL): Likewise.
(__ASSUME_O_CLOEXEC): Likewise.
(__ASSUME_SOCK_CLOEXEC): Likewise.
(__ASSUME_IN_NONBLOCK): Likewise.
(__ASSUME_PIPE2): Likewise.
(__ASSUME_EVENTFD2): Likewise.
(__ASSUME_SIGNALFD4): Likewise.
(__ASSUME_DUP3): Likewise.
* sysdeps/unix/sysv/linux/m68k/kernel-features.h
(__ASSUME_UTIMES): Likewise.
(__ASSUME_O_CLOEXEC): Likewise.
(__ASSUME_SOCK_CLOEXEC): Likewise.
(__ASSUME_IN_NONBLOCK): Likewise.
(__ASSUME_PIPE2): Likewise.
(__ASSUME_EVENTFD2): Likewise.
(__ASSUME_SIGNALFD4): Likewise.
(__ASSUME_DUP3): Likewise.
* sysdeps/unix/sysv/linux/microblaze/kernel-features.h
(__ASSUME_UTIMES): Likewise.
(__ASSUME_O_CLOEXEC): Likewise.
(__ASSUME_SOCK_CLOEXEC): Likewise.
(__ASSUME_IN_NONBLOCK): Likewise.
(__ASSUME_PIPE2): Likewise.
(__ASSUME_EVENTFD2): Likewise.
(__ASSUME_SIGNALFD4): Likewise.
(__ASSUME_DUP3): Likewise.
* sysdeps/unix/sysv/linux/mips/kernel-features.h (__ASSUME_IPC64):
Likewise.
(__ASSUME_UTIMES): Likewise.
(__ASSUME_EVENTFD2): Likewise.
(__ASSUME_SIGNALFD4): Likewise.
* sysdeps/unix/sysv/linux/tile/kernel-features.h
(__ASSUME_O_CLOEXEC): Likewise.
(__ASSUME_SOCK_CLOEXEC): Likewise.
(__ASSUME_IN_NONBLOCK): Likewise.
(__ASSUME_PIPE2): Likewise.
(__ASSUME_EVENTFD2): Likewise.
(__ASSUME_SIGNALFD4): Likewise.
(__ASSUME_DUP3): Likewise.
(__ASSUME_UTIMES): Undefine.
This patch does some initial cleanup, following the move to 2.6.32
minimum kernel version, by removing __LINUX_KERNEL_VERSION
conditionals that are now always-true or always-false. In the case of
__ASSUME_ARG_MAX_STACK_BASED, where the conditional used a kernel
version that was itself in a macro, the associated sysconf.c code is
also cleaned up and __ASSUME_ARG_MAX_STACK_BASED removed completely.
Tested x86_64 that disassembly of installed shared libraries is
unchanged by the patch.
* sysdeps/unix/sysv/linux/kernel-features.h [__s390__]
(__ASSUME_UTIMES): Do not condition on kernel version.
(__ASSUME_PSELECT): Define unconditionally.
(__ASSUME_PPOLL): Likewise.
(__ASSUME_ATFCTS): Likewise.
(__ASSUME_SET_ROBUST_LIST): Do not condition on kernel version.
(__ASSUME_COMPLETE_READV_WRITEV): Define unconditionally.
(__ASSUME_FUTEX_LOCK_PI): Do not condition on kernel version.
(__ASSUME_UTIMENSAT): Define unconditionally.
(__ASSUME_PRIVATE_FUTEX): Likewise.
(__ASSUME_FALLOCATE): Likewise.
(__ASSUME_O_CLOEXEC): Likewise.
(__LINUX_ARG_MAX_STACK_BASED_MIN_KERNEL): Remove.
(__ASSUME_ARG_MAX_STACK_BASED): Likewise.
(__ASSUME_ADJ_OFFSET_SS_READ): Define unconditionally.
(__ASSUME_SOCK_CLOEXEC): Do not condition on kernel version.
(__ASSUME_IN_NONBLOCK): Likewise.
(__ASSUME_PIPE2): Likewise.
(__ASSUME_EVENTFD2): Likewise.
(__ASSUME_SIGNALFD4): Likewise.
(__ASSUME_DUP3): Likewise.
[__x86_64__ || __sparc__] (__ASSUME_ACCEPT4_SYSCALL): Likewise.
(__ASSUME_FUTEX_CLOCK_REALTIME): Define unconditionally.
(__ASSUME_AT_RANDOM): Likewise.
(__ASSUME_PREADV): Likewise.
(__ASSUME_PWRITEV): Likewise.
(__ASSUME_REQUEUE_PI): Do not condition on kernel version.
(__ASSUME_F_GETOWN_EX): Define unconditionally.
(__ASSUME_XFS_RESTRICTED_CHOWN): Likewise.
* sysdeps/unix/sysv/linux/sysconf.c (__sysconf)
[!__ASSUME_ARG_MAX_STACK_BASED]: Remove conditional code.
* sysdeps/unix/sysv/linux/alpha/kernel-features.h
(__ASSUME_O_CLOEXEC): Define unconditionally.
(__ASSUME_PSELECT): Do not undefine conditionally.
(__ASSUME_PPOLL): Likewise.
(__ASSUME_ATFCTS): Likewise.
(__ASSUME_SET_ROBUST_LIST): Likewise.
(__ASSUME_UTIMENSAT): Likewise.
(__ASSUME_FDATASYNC): Define unconditionally.
* sysdeps/unix/sysv/linux/arm/kernel-features.h
(__ASSUME_SIGFRAME_V2): Likewise.
)__ASSUME_EVENTFD2): Likewise.
(__ASSUME_SIGNALFD4): Likewise.
(__ASSUME_PSELECT): Do not undefine conditionally.
(__ASSUME_PPOLL): Likewise.
* sysdeps/unix/sysv/linux/ia64/kernel-features.h
(__ASSUME_PSELECT): Define unconditionally.
(__ASSUME_PPOLL): Likewise.
(__ASSUME_O_CLOEXEC): Likewise.
(__ASSUME_SOCK_CLOEXEC): Likewise.
(__ASSUME_IN_NONBLOCK): Likewise.
(__ASSUME_PIPE2): Likewise.
(__ASSUME_EVENTFD2): Likewise.
(__ASSUME_SIGNALFD4): Likewise.
(__ASSUME_DUP3): Likewise.
* sysdeps/unix/sysv/linux/m68k/kernel-features.h
(__ASSUME_O_CLOEXEC): Likewise.
(__ASSUME_SOCK_CLOEXEC): Likewise.
(__ASSUME_IN_NONBLOCK): Likewise.
(__ASSUME_PIPE2): Likewise.
(__ASSUME_EVENTFD2): Likewise.
(__ASSUME_SIGNALFD4): Likewise.
(__ASSUME_DUP3): Likewise.
* sysdeps/unix/sysv/linux/mips/kernel-features.h
(__ASSUME_EVENTFD2): Likewise.
(__ASSUME_SIGNALFD4): Likewise.
(__ASSUME_ACCEPT4_SYSCALL): Likewise.
[BZ #15215] This unifies various pthread_once architecture-specific
implementations which were using the same algorithm with slightly different
implementations. It also adds missing memory barriers that are required for
correctness.
This patch moves the __PTHREAD_SPINS definition to arch specific header
since pthread_mutex_t layout is also arch specific. This leads to no
need to defining __PTHREAD_MUTEX_HAVE_ELISION and thus removing of the
undefined compiler warning.
Similar to the issues for accept4 and recvmmsg, __ASSUME_SENDMMSG is
also confused about whether it relates to function availability or
socketcall operation availability, and the conditions for the
definition are always wrong (sendmmsg appeared in Linux kernel 3.0,
not 2.6.39); this is now bug 16611.
This patch splits the macro into separate macros like those for
accept4 and recvmmsg, defining them for appropriate kernel versions.
Tested x86_64, including that disassembly of the installed shared
libraries is unchanged by this patch.
[BZ #16611]
* sysdeps/unix/sysv/linux/kernel-features.h
[__LINUX_KERNEL_VERSION >= 0x030000 && __ASSUME_SOCKETCALL]
(__ASSUME_SENDMMSG_SOCKETCALL): Define.
[__LINUX_KERNEL_VERSION >= 0x030000 && (__i386__ || __x86_64__ ||
__powerpc__ || __sh__ || __sparc__)] (__ASSUME_SENDMMSG_SYSCALL):
Likewise.
[__i386__ || __powerpc__ || __sh__ || __sparc__]
(__ASSUME_SENDMMSG_SYSCALL_WITH_SOCKETCALL): Likewise.
[__ASSUME_SENDMMSG_SOCKETCALL || __ASSUME_SENDMMSG_SYSCALL]
(__ASSUME_SENDMMSG): Define instead of using previous
[__LINUX_KERNEL_VERSION >= 0x020627] condition.
* sysdeps/unix/sysv/linux/aarch64/kernel-features.h
(__ASSUME_SENDMMSG_SYSCALL): Define.
* sysdeps/unix/sysv/linux/alpha/kernel-features.h
[__LINUX_KERNEL_VERSION >= 0x030200] (__ASSUME_SENDMMSG_SYSCALL):
Likewise.
* sysdeps/unix/sysv/linux/arm/kernel-features.h
[__LINUX_KERNEL_VERSION >= 0x030000] (__ASSUME_SENDMMSG_SYSCALL):
Likewise.
* sysdeps/unix/sysv/linux/ia64/kernel-features.h
[__LINUX_KERNEL_VERSION >= 0x030000] (__ASSUME_SENDMMSG_SYSCALL):
Likewise.
* sysdeps/unix/sysv/linux/internal_sendmmsg.S [__ASSUME_SOCKETCALL
&& !__ASSUME_SENDMMSG_SYSCALL_WITH_SOCKETCALL &&
!__ASSUME_SENDMMSG_SYSCALL] (__NR_sendmmsg): Undefine.
[__ASSUME_SENDMMSG]: Change conditionals to
[__ASSUME_SENDMMSG_SOCKETCALL].
* sysdeps/unix/sysv/linux/microblaze/kernel-features.h
[__LINUX_KERNEL_VERSION >= 0x030300] (__ASSUME_SENDMMSG_SYSCALL):
Define.
* sysdeps/unix/sysv/linux/mips/kernel-features.h
[__LINUX_KERNEL_VERSION >= 0x030100] (__ASSUME_SENDMMSG_SYSCALL):
Likewise.
* sysdeps/unix/sysv/linux/sendmmsg.c [__ASSUME_SOCKETCALL &&
!__ASSUME_SENDMMSG_SYSCALL_WITH_SOCKETCALL &&
!__ASSUME_SENDMMSG_SYSCALL] (__NR_sendmmsg): Undefine.
[!__ASSUME_SENDMMSG]: Change conditional to
[!__ASSUME_SENDMMSG_SOCKETCALL].
* sysdeps/unix/sysv/linux/tile/kernel-features.h
[__LINUX_KERNEL_VERSION >= 0x030000] (__ASSUME_SENDMMSG_SYSCALL):
Define.
* sysdeps/unix/sysv/linux/hppa/kernel-features.h
[__LINUX_KERNEL_VERSION >= 0x030100] (__ASSUME_SENDMMSG_SYSCALL):
Define.
Similar to the issues for accept4, __ASSUME_RECVMMSG is also confused
about whether it relates to function availability or socketcall
operation availability; this is now bug 16610.
Nothing actually tests __ASSUME_RECVMMSG for function availability,
but implicit in the definition in kernel-features.h is the idea that
it makes sense when the syscall is available and socketcall is not
being used. As with accept4, there are architectures where the
syscall was added later than the socketcall operation, meaning that
assuming glibc is built with recent enough kernel headers, it does not
attempt to use socketcall for these operations and __ASSUME_RECVMMSG
gets defined for kernels >= 2.6.33 even when the syscall was only
added later.
This patch splits the macro into separate macros like those used for
accept4; having similar macro structure in both cases (and for
sendmmsg once I've dealt with that) seems likely to be less confusing
than having a different structure on the basis of nothing actually
needing to assume the recvmmsg function works. Appropriate
definitions are added for all architectures.
Architecture-specific note: Tile's kernel-features.h says "TILE glibc
support starts with 2.6.36", which is accurate in that 2.6.36 was the
first kernel version with Tile support, and on that basis I've made
that header define __ASSUME_RECVMMSG_SYSCALL unconditionally.
However, Tile's configure.ac has arch_minimum_kernel=2.6.32. Since
arch_minimum_kernel is meant to reflect only kernel.org kernel
versions, I think that should change to 2.6.36. (If using glibc with
kernel versions from before a port went in kernel.org, it's your
responsibility to change arch_minimum_kernel in a local patch, and at
the same time to adjust any __ASSUME_* definitions that may not be
correct for your older kernel; for developing the official glibc it
should only ever be necessary to consider what official kernel.org
releases support.)
Tested x86_64, including that disassembly of the installed shared
libraries is unchanged by this patch.
[BZ #16610]
* sysdeps/unix/sysv/linux/kernel-features.h
[__LINUX_KERNEL_VERSION >= 0x020621 && __ASSUME_SOCKETCALL]
(__ASSUME_RECVMMSG_SOCKETCALL): Define.
[(__LINUX_KERNEL_VERSION >= 0x020621 && (__i386__ || __x86_64__ ||
__sparc__)) || (__LINUX_KERNEL_VERSION >= 0x020625 && (__powerpc__
|| __sh__))] (__ASSUME_RECVMMSG_SYSCALL): Likewise.
[__i386__ || __sparc__]
(__ASSUME_RECVMMSG_SYSCALL_WITH_SOCKETCALL): Likewise.
[__ASSUME_RECVMMSG_SOCKETCALL || __ASSUME_RECVMMSG_SYSCALL]
(__ASSUME_RECVMMSG): Define instead of using previous
[__LINUX_KERNEL_VERSION >= 0x020621] condition.
* sysdeps/unix/sysv/linux/aarch64/kernel-features.h
(__ASSUME_RECVMMSG_SYSCALL): Define.
* sysdeps/unix/sysv/linux/alpha/kernel-features.h
[__LINUX_KERNEL_VERSION >= 0x020621] (__ASSUME_RECVMMSG_SYSCALL):
Likewise.
* sysdeps/unix/sysv/linux/arm/kernel-features.h
[__LINUX_KERNEL_VERSION >= 0x020621] (__ASSUME_RECVMMSG_SYSCALL):
Likewise.
* sysdeps/unix/sysv/linux/ia64/kernel-features.h
[__LINUX_KERNEL_VERSION >= 0x020621] (__ASSUME_RECVMMSG_SYSCALL):
Likewise.
* sysdeps/unix/sysv/linux/internal_recvmmsg.S [__ASSUME_SOCKETCALL
&& !__ASSUME_RECVMMSG_SYSCALL_WITH_SOCKETCALL &&
!__ASSUME_RECVMMSG_SYSCALL] (__NR_recvmmsg): Undefine.
[__ASSUME_RECVMMSG]: Change condition to
[__ASSUME_RECVMMSG_SOCKETCALL].
* sysdeps/unix/sysv/linux/microblaze/kernel-features.h
[__LINUX_KERNEL_VERSION >= 0x020621] (__ASSUME_RECVMMSG_SYSCALL):
Define.
(__ASSUME_RECVMMSG_SYSCALL_WITH_SOCKETCALL): Likewise.
* sysdeps/unix/sysv/linux/mips/kernel-features.h
[__LINUX_KERNEL_VERSION >= 0x020621] (__ASSUME_RECVMMSG_SYSCALL):
Likewise.
* sysdeps/unix/sysv/linux/recvmmsg.c [__ASSUME_SOCKETCALL &&
!__ASSUME_RECVMMSG_SYSCALL_WITH_SOCKETCALL &&
!__ASSUME_RECVMMSG_SYSCALL] (__NR_recvmmsg): Undefine.
[!__ASSUME_RECVMMSG]: Change condition to
[!__ASSUME_RECVMMSG_SOCKETCALL].
* sysdeps/unix/sysv/linux/tile/kernel-features.h
(__ASSUME_RECVMMSG_SYSCALL): Define.
* sysdeps/unix/sysv/linux/hppa/kernel-features.h
[__LINUX_KERNEL_VERSION >= 0x020622] (__ASSUME_RECVMMSG_SYSCALL):
Define.
In <https://sourceware.org/ml/libc-alpha/2013-12/msg00008.html>,
Aurelien noted issues with the definition of __ASSUME_ACCEPT4, which I
discussed in more detail in
<https://sourceware.org/ml/libc-alpha/2013-12/msg00014.html>; these
are now bug 16609.
As previously noted, __ASSUME_ACCEPT4 is used in two ways:
* In OS-independent code, to mean "accept4 can be assumed to work
rather than fail with ENOSYS". It doesn't matter whether it's
implemented with socketcall or a separate syscall.
* In Linux-specific code, to mean "the socketcall multiplex syscall
can be assumed to handle the accept4 operation. When used in
Linux-specific code, it *never* refers to anything relating to the
accept4 syscall, only to the socketcall multiplexer.
This patch splits the macro into separate __ASSUME_ACCEPT4_SOCKETCALL,
__ASSUME_ACCEPT4_SYSCALL and __ASSUME_ACCEPT4 to clarify the different
cases involved. A macro __ASSUME_SOCKETCALL is added for convenience
in writing logic relating to all socketcall architectures. In
addition, to address the issue of architectures where socketcall
support for accept4 was added before a separate syscall was added (and
so the separate syscall should not be used unless known to be present
or fallback to socketcall is available), a fourth macro
__ASSUME_ACCEPT4_SYSCALL_WITH_SOCKETCALL is added to indicate that the
syscall became available at the same time as socketcall support. This
is then used in the relevant places in a conditional determining
whether to undefine __NR_accept4 (the simple approach to avoiding the
syscall's presence causing problems; I didn't try to implement runtime
fallback from the syscall to socketcall).
Architecture-specific note: alpha defined __ASSUME_ACCEPT4 for 2.6.33
and later, but actually the syscall was added for alpha in 3.2, so
this patch uses the correct condition for __ASSUME_ACCEPT4_SYSCALL
there.
Tested x86_64, including that disassembly of the installed shared
libraries is unchanged by this patch.
[BZ #16609]
* sysdeps/unix/sysv/linux/kernel-features.h [__i386__ ||
__powerpc__ || __s390__ || __sh__ || __sparc__]
(__ASSUME_SOCKETCALL): Define.
[__LINUX_KERNEL_VERSION && __ASSUME_SOCKETCALL]
(__ASSUME_ACCEPT4_SOCKETCALL): Likewise.
[(__LINUX_KERNEL_VERSION >= 0x02061c && (__x86_64__ || __sparc__))
|| (__LINUX_KERNEL_VERSION >= 0x020625 && (__powerpc__ ||
__sh__))] (__ASSUME_ACCEPT4_SYSCALL): Likewise.
[__sparc__] (__ASSUME_ACCEPT4_SYSCALL_WITH_SOCKETCALL): Likewise.
[__ASSUME_ACCEPT4_SOCKETCALL || __ASSUME_ACCEPT4_SYSCALL]
(__ASSUME_ACCEPT4): Define instead of using previous
[__LINUX_KERNEL_VERSION >= 0x02061c && (__i386__ || __x86_64__ ||
__powerpc__ || __sparc__ || __s390__)] condition.
* sysdeps/unix/sysv/linux/aarch64/kernel-features.h
(__ASSUME_ACCEPT4): Change to __ASSUME_ACCEPT4_SYSCALL.
* sysdeps/unix/sysv/linux/accept4.c [__ASSUME_SOCKETCALL &&
!__ASSUME_ACCEPT4_SYSCALL_WITH_SOCKETCALL &&
!__ASSUME_ACCEPT4_SYSCALL] (__NR_accept4): Undefine.
[!__ASSUME_ACCEPT4]: Change condition to
[!__ASSUME_ACCEPT4_SOCKETCALL].
* sysdeps/unix/sysv/linux/alpha/kernel-features.h
(__ASSUME_ACCEPT4): Change to __ASSUME_ACCEPT4_SYSCALL. Correct
condition to [__LINUX_KERNEL_VERSION >= 0x030200].
* sysdeps/unix/sysv/linux/arm/kernel-features.h
[__LINUX_KERNEL_VERSION >= 0x020624] (__ASSUME_ACCEPT4): Change to
__ASSUME_ACCEPT4_SYSCALL.
* sysdeps/unix/sysv/linux/i386/accept4.S [__ASSUME_ACCEPT4]:
Change conditions to [__ASSUME_ACCEPT4_SOCKETCALL].
* sysdeps/unix/sysv/linux/ia64/kernel-features.h
[__LINUX_KERNEL_VERSION >= 0x030300] (__ASSUME_ACCEPT4): Change to
__ASSUME_ACCEPT4_SYSCALL.
* sysdeps/unix/sysv/linux/internal_accept4.S [__ASSUME_SOCKETCALL
&& !__ASSUME_ACCEPT4_SYSCALL_WITH_SOCKETCALL &&
!__ASSUME_ACCEPT4_SYSCALL] (__NR_accept4): Undefine.
[__ASSUME_ACCEPT4]: Change condition to
[__ASSUME_ACCEPT4_SOCKETCALL].
* sysdeps/unix/sysv/linux/m68k/kernel-features.h
(__ASSUME_SOCKETCALL): Define.
[__LINUX_KERNEL_VERSION >= 0x02061c] (__ASSUME_ACCEPT4): Remove.
* sysdeps/unix/sysv/linux/microblaze/kernel-features.h
(__ASSUME_SOCKETCALL): Define.
(__ASSUME_ACCEPT4): Remove.
[__LINUX_KERNEL_VERSION >= 0x020621] (__ASSUME_ACCEPT4_SYSCALL):
Define.
* sysdeps/unix/sysv/linux/mips/kernel-features.h
[__LINUX_KERNEL_VERSION >= 0x02061f] (__ASSUME_ACCEPT4_SYSCALL):
Likewise.
* sysdeps/unix/sysv/linux/tile/kernel-features.h
(__ASSUME_ACCEPT4): Change to __ASSUME_ACCEPT4_SYSCALL.
* sysdeps/unix/sysv/linux/hppa/kernel-features.h
[__LINUX_KERNEL_VERSION >= 0x020622] (__ASSUME_ACCEPT4_SYSCALL):
Define.
As reported in http://bugzilla.redhat.com/533063 , preadv/pwritev prototypes
are wrong on 32-bit arches with -D_FILE_OFFSET_BITS=64 and as I've just
found, fallocate is wrong too.
The problem is that only off_t is remapped to the 64-bit type transparently,
__off_t is not.
* sysdeps/unix/sysv/linux/bits/stat.h: Protect UTIME_NOW and
UTIME_OMIT only with __USE_ATFILE.
* sysdeps/unix/sysv/linux/ia64/bits/stat.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/bits/stat.h: Likewise.
* sysdeps/unix/sysv/linux/s390/bits/stat.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/stat.h: Likewise.
* sysdeps/unix/sysv/linux/x86_64/bits/stat.h: Likewise.
* io/sys/stat.h: Move mknodat definition into same conditional as
mknod.
* time/sys/time.h: futimesat is not among the functions accepted
into the POSIX standard.
and creat system calls.
* sysdeps/unix/sysv/linux/alpha/syscalls.list: Remove open system
call.
* sysdeps/unix/sysv/linux/ia64/syscalls.list: Remove open and creat
system calls.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/syscalls.list: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list: Likewise.
* sysdeps/unix/sysv/linux/x86_64/syscalls.list: Likewise.
* sysdeps/unix/sysv/linux/open64_2.c: ...here. New file.
* sysdeps/unix/sysv/linux/Makefile [subdir=io] (sysdep_routines): Add
open64_2.
* sysdeps/unix/sysv/linux/ia64/syscalls.list: Add open and creat
entries.
* sysdeps/unix/sysv/linux/x86_64/syscalls.list: Likewise.
* sysdeps/wordsize-64/alphasort.c: New file.
* sysdeps/wordsize-64/alphasort64.c: New file.
* sysdeps/wordsize-64/fseeko.c: New file.
* sysdeps/wordsize-64/fseeko64.c: New file.
* sysdeps/wordsize-64/ftello.c: New file.
* sysdeps/wordsize-64/ftello64.c: New file.
* sysdeps/wordsize-64/ftw.c: New file.
* sysdeps/wordsize-64/ftw64.c: New file.
* sysdeps/wordsize-64/iofgetpos.c: New file.
* sysdeps/wordsize-64/iofgetpos64.c: New file.
* sysdeps/wordsize-64/iofopen.c: New file.
* sysdeps/wordsize-64/iofopen64.c: New file.
* sysdeps/wordsize-64/iofsetpos.c: New file.
* sysdeps/wordsize-64/iofsetpos64.c: New file.
* sysdeps/wordsize-64/lockf.c: New file.
* sysdeps/wordsize-64/lockf64.c: New file.
* sysdeps/wordsize-64/mkostemp.c: New file.
* sysdeps/wordsize-64/mkostemp64.c: New file.
* sysdeps/wordsize-64/mkstemp.c: New file.
* sysdeps/wordsize-64/mkstemp64.c: New file.
* sysdeps/wordsize-64/scandir.c: New file.
* sysdeps/wordsize-64/scandir64.c: New file.
* sysdeps/wordsize-64/tmpfile.c: New file.
* sysdeps/wordsize-64/tmpfile64.c: New file.
* sysdeps/wordsize-64/versionsort.c: New file.
* sysdeps/wordsize-64/versionsort64.c: New file.
* sysdeps/unix/sysv/linux/wordsize-64/aio_read.c: New file.
* sysdeps/unix/sysv/linux/wordsize-64/aio_read64.c: New file.
* sysdeps/unix/sysv/linux/wordsize-64/aio_write.c: New file.
* sysdeps/unix/sysv/linux/wordsize-64/aio_write64.c: New file.
* sysdeps/unix/sysv/linux/wordsize-64/creat64.c: New file.
* sysdeps/unix/sysv/linux/wordsize-64/getdirentries.c: New file.
* sysdeps/unix/sysv/linux/wordsize-64/getdirentries64.c: New file.
* sysdeps/unix/sysv/linux/wordsize-64/lio_listio.c: New file.
* sysdeps/unix/sysv/linux/wordsize-64/lio_listio64.c: New file.
* sysdeps/unix/sysv/linux/wordsize-64/open64.c: New file.
* sysdeps/unix/sysv/linux/wordsize-64/openat.c: New file.
* sysdeps/unix/sysv/linux/wordsize-64/openat64.c: New file.
* crypt/sha256-crypt.c: Fix a comment.
* crypt/sha512-crypt.c: Likewise.
* sysdeps/unix/sysv/linux/ia64/clone2.S: Check for NULL stakc
pointers to match other architectures.
* sysdeps/unix/sysv/linux/Makefile [subdirs=misc] (tests): Add
tst-clone.
* sysdeps/unix/sysv/linux/tst-clone.c: New file.
malloc'ed wbuffer which isn't freed in error conditions.
(struct shmid_ds): Use it for shm_nattch field.
2005-11-18 Jakub Jelinek <jakub@redhat.com>
* sysdeps/unix/sysv/linux/futimesat.c (futimesat): If FILE is NULL,
set access and modification times of the file referenced by FD.
* sysdeps/generic/futimesat.c (futimesat): Don't return EINVAL if
FILE is NULL. Don't check FD if FILE is absolute path.
2005-11-19 Ulrich Drepper <drepper@redhat.com>
* nscd/nscd_gethst_r.c (nscd_gethst_r): Avoid unnecesary read call
if there are no aliases.
* sysdeps/unix/sysv/linux/Makefile (CFLAGS-connections.c,
CFLAGS-pwdcache.c, CFLAGS-grpcache.c, CFLAGS-hstcache.c,
CFLAGS-aicache.c, CFLAGS-initgrcache.c): Add -DHAVE_SENDFILE.
* sysdeps/unix/sysv/linux/kernel-features.h (__ASSUME_SENDFILE):
Define.
* nscd/pwdcache.c [HAVE_SENDFILE]: Include <sys/sendfile.h> and
<kernel-features.h>.
[HAVE_SENDFILE] (cache_addpw): Use sendfile to transmit positive
result.
* nscd/grpcache.c: Likewise.
* nscd/hstcache.c: Likewise.
* nscd/aicache.c: Likewise.
* nscd/initgrcache.c: Likewise.
* nscd/connectionc.c: Likewise.
* sysdeps/unix/sysv/linux/kernel-posix-cpu-timers.h: New file.
* sysdeps/unix/sysv/linux/clock_getcpuclockid.c: New file.
* sysdeps/unix/sysv/linux/ia64/clock_getcpuclockid.c
(HAS_CPUCLOCK): New macro.
(clock_getcpuclockid): Function removed.
#include the new linux file to define it instead.
* sysdeps/unix/clock_gettime.c [HP_TIMING_AVAIL] (hp_timing_gettime):
New function, broken out of ...
(clock_gettime) [HP_TIMING_AVAIL]: ... here. Call it.
(realtime_gettime): New function, broken out of ...
(clock_gettime) [! HANDLED_REALTIME]: ... here. Call it.
(clock_gettime) [SYSDEP_GETTIME_CPU]: Use new macro in default case.
* sysdeps/unix/sysv/linux/clock_gettime.c (SYSCALL_GETTIME): New macro.
(SYSDEP_GETTIME_CPUTIME): New macro.
(SYSDEP_GETTIME): Use both.
[! __ASSUME_POSIX_TIMERS] (maybe_syscall_gettime): New function, broken
out of ...
(SYSDEP_GETTIME): ... here. Use it.
[__NR_clock_gettime] (HANDLED_CPUTIME): Define it.
(SYSDEP_GETTIME_CPUTIME): New macro. Handle CPU timers by trying
kernel support and falling back to hp-timing code.
* sysdeps/posix/clock_getres.c
[HP_TIMING_AVAIL] (hp_timing_getres): New function, broken out of ...
(clock_getres) [HP_TIMING_AVAIL]: ... here. Call it.
(realtime_getres): New function, broken out of ...
(clock_getres) [! HANDLED_REALTIME]: ... here. Call it.
(clock_getres) [SYSDEP_GETRES_CPU]: Use new macro in default case.
* sysdeps/unix/sysv/linux/clock_getres.c (SYSCALL_GETRES): New macro.
(SYSDEP_GETRES_CPUTIME): New macro.
(SYSDEP_GETRES): Use both.
[! __ASSUME_POSIX_TIMERS] (maybe_syscall_getres): New function, broken
out of ...
(SYSDEP_GETRES): ... here. Use it.
[__NR_clock_getres] (HANDLED_CPUTIME): Define it.
(SYSDEP_GETRES_CPUTIME): New macro. Handle CPU timers by trying
kernel support and falling back to hp-timing code.
* sysdeps/unix/sysv/linux/clock_nanosleep.c: Handle
CLOCK_PROCESS_CPUTIME_ID and CLOCK_PROCESS_THREAD_ID specially,
translating to the kernel clockid_t for our own process/thread clock.
2004-12-07 Jakub Jelinek <jakub@redhat.com>
* sysdeps/unix/sysv/linux/ia64/clone2.S (__clone2): Add support for
NPTL where the PID is stored at userlevel and needs to be reset when
CLONE_THREAD is not used. Restore gp before calling _exit.
2004-09-29 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/ia64/bits/siginfo.h (si_segvflags):
Renamed from si+flags due to comflict with si_flags from <elf.h>.
2004-09-25 Jakub Jelinek <jakub@redhat.com>
* sysdeps/unix/sysv/linux/i386/setuid.c (__setuid): Remove second
result declaration.
2004-09-22 Andreas Schwab <schwab@suse.de>
* sysdeps/unix/sysv/linux/ia64/sysdep.h: Adjust whitespace.
2004-04-23 Jakub Jelinek <jakub@redhat.com>
* sysdeps/ia64/fpu/libm_support.h (__libm_error_support): Add
libc_hidden_proto. Define to __GI___libm_error_support for
assembly going into libc.so.
* sysdeps/ia64/fpu/libc_libm_error.c (__libm_error_support): Add
libc_hidden_def.
* include/libc-symbols.h (HIDDEN_BUILTIN_JUMPTARGET): Define.
* sysdeps/ia64/bcopy.S (bcopy): Use it for jump to memmove.
* sysdeps/unix/sysv/linux/ia64/sysdep.S (__syscall_error): Access
gprel errno if RTLD_PRIVATE_ERRNO or __thread __libc_errno/errno
if USE___THREAD.
2004-04-21 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/ia64/setjmp.S: Define _GI___sigsetjmp
and use it internally instead of __sigsetjmp.
* sysdeps/ia64/fpu/s_frexpf.c (frexpf): Use _GI___libm_frexp_4f.
* sysdeps/ia64/fpu/s_frexpl.c (frexpl): Use _GI___libm_frexp_4l.
* sysdeps/ia64/fpu/libm_frexp4.S: Define _GI___libm_frexp_4.
* sysdeps/ia64/fpu/libm_frexp4f.S: Define _GI___libm_frexp_4f.
* sysdeps/ia64/fpu/libm_frexp4l.S: Define _GI___libm_frexp_4l.
* sysdeps/ia64/fpu/s_frexp.c (frexp): Use _GI___libm_frexp_4.
* sysdeps/ia64/fpu/libm_support.h: Declare _GI___libm_frexp_4,
_GI___libm_frexp_4f, _GI___libm_frexp_4l.
* sysdeps/ia64/fpu/bits/mathinline.h: New file.
* sysdeps/unix/sysv/linux/ia64/__start_context.S: Use
HIDDEN_JUMPTARGET for exit call.
* sysdeps/unix/sysv/linux/ia64/clone2.S: Use HIDDEN_JUMPTARGET for
_exit call.
* sysdeps/ia64/bcopy.S: Use HIDDEN_JUMPTARGET for memmove call.
* sysdeps/ia64/strcat.S: Use HIDDEN_JUMPTARGET for strlen and
strcpy calls.
* sysdeps/unix/sysv/linux/ia64/ioperm.c (_iopl): Match EPERM error
the x86 code produces in case of mission permissions.
Patch by Bernd Schmidt <bernds@redhat.com>.
2003-12-01 Jes Sorensen <jes@wildopensource.com>
* rt/tst-clock.c (do_test): Print message when skipping
CLOCK_PROCESS_CPUTIME_ID test.
* sysdeps/unix/sysv/linux/ia64/clock_getcpuclockid.c: New file.
Provide CLOCK_PROCESS_CPUTIME_ID only if /proc/sal/itc_drift is 0.
peek_token. This avoids some copying and reduces code size.
(init_dfa): Initialize map_notascii.
(build_wcs_upper_buffer): If map_notascii is zero use simplified
2003-12-02 David Mosberger <davidm@hpl.hp.com>
* sysdeps/ia64/elf/initfini.c: Add unwind info.
* sysdeps/ia64/dl-machine.h (elf_machine_matches_host): Mark with
attribute "unused".
(elf_machine_dynamic): Mark with attributes "unused" and "const".
(elf_machine_runtime_setup): Likewise.
* sysdeps/generic/dl-fptr.c (make_fptr_table): Mark with
attribute "always_inline".
* sysdeps/ia64/dl-machine.h (__ia64_init_bootstrap_fdesc_table):
Likewise.
* configure.in: Check whether compiler has libunwind support.
* config.make.in (have-cc-with-libunwind): New variable.
* config.h.in (HAVE_CC_WITH_LIBUNWIND): New macro.
* Makeconfig (gnulib): If have-cc-withh-libunwind is "yes", also
mention -lunwind.
003-11-12 David Mosberger <davidm@hpl.hp.com>
* sysdeps/unix/sysv/linux/ia64/sysdep.h: Define DO_CALL_VIA_BREAK.
Redefine DO_CALL to use vdso if supported, otherwise DO_CALL_VIA_BREAK.
Likewise for DO_INLINE_SYSCALL. Make INTERNAL_SYSCALL use
DO_INLINE_SYSCALL.
* sysdeps/unix/sysv/linux/ia64/vfork.S: Use DO_CALL_VIA_BREAK()
instead of DO_CALL().
* sysdeps/unix/sysv/linux/ia64/clone2.S: Use break directly instead
of DO_CALL().
* sysdeps/unix/sysv/linux/ia64/brk.S (__curbrk): Restructure it
to take advantage of DO_CALL() macro.
* sysdeps/unix/sysv/linux/ia64/setcontext.S: Likewise.
* sysdeps/unix/sysv/linux/ia64/getcontext.S: Likewise.
* elf/rtld.c (dl_main): Restrict dl_sysinfo_dso check to first
program header. On ia64, the check failed previously because
there are two program headers.
* sysdeps/generic/s_nexttowardf.c: Likewise.
* math/bug-nexttoward.c: New file.
2003-11-14 David Mosberger <davidm@hpl.hp.com>
* sysdeps/unix/sysv/linux/ia64/sysdep.h
(GAS_ALIGN_BREAKS_UNWIND_INFO): Define this macro to indicate
that all existing GAS versions have a problem with .align inside
a function.
* sysdeps/ia64/memccpy.S: Work around GAS_ALIGN_BREAKS_UNWIND_INFO bug.
* sysdeps/ia64/memcpy.S: Likewise.
* sysdeps/ia64/memset.S: Likewise.
* sysdeps/ia64/memmove.S: Likewise. Also move the jump-table to
out of .text into .rodata, where it belongs.
* sysdeps/unix/sysv/linux/ia64/pipe.S: There is no need to
save/restore input-arguments, because they're necessarily
preserved by the kernel to support syscall-restart.
2003-10-15 Roland McGrath <roland@redhat.com>
* elf/dl-iteratephdr.c [! SHARED] (dl_iterate_phdr): New function.
Fake an entry for the main executable and then call __dl_iterate_phdr.
* elf/Makefile (routines): Remove dl-iteratephdr-static.
(elide-routines.os): Likewise.
(CFLAGS-dl-iterate-phdr-static.c): Variable removed.
* sysdeps/generic/dl-iteratephdr-static.c: File removed.
* sysdeps/unix/sysv/linux/ia64/dl-iteratephdr-static.c: File removed.
2003-08-15 Ulrich Drepper <drepper@redhat.com>
* io/Versions [GLIBC_2.3.3]: Add posix_fadvise64.
* io/fcntl.h (posix_fadvise64): Change type of third parameter to
off_t.
* sysdeps/unix/sysv/linux/posix_fadvise.c: Adjust definition.
* sysdeps/unix/make-syscalls.sh: Recognize V prefix to the parameter
description indicating the error value is returned, not -1.
* sysdeps/unix/sysv/linux/Makefile [subdir=io] (subdir_routines): Add
posix_fadvise64_64.
* sysdeps/unix/sysv/linux/kernel-features.h: Add definition of
__ASSUME_FADVISE64_64_SYSCALL.
* sysdeps/unix/sysv/linux/syscalls.list: Don't define madvise and
posix_madvise in one file. Have posix_madvise defined with error
value returned.
Define posix_fadvise64_64 entry. Add version info to posix_fadvise64
entry.
* sysdeps/unix/sysv/linux/alpha/syscalls.list: Define
posix_fadvise64_64 entry. Add version info to posix_fadvise64 entry.
* sysdeps/unix/sysv/linux/ia64/syscalls.list: Likewise.
* sysdeps/unix/sysv/linux/x86_64/syscalls.list: Likewise.
* sysdeps/unix/sysv/linux/i386/posix_fadvise.S: New file.
* sysdeps/unix/sysv/linux/i386/sysdep.h: Define PSEUDO_ERRVAL,
PSEUDO_END_ERRVAL, and ret_ERRVAL.
* sysdeps/unix/sysv/linux/ia64/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/x86_64/sysdep.h: Likewise.
* posix/Makefile (routines): Add posix_madvise.
* sysdeps/generic/madvise.c: Don't define posix_madvise.
* sysdeps/generic/posix_madvise.c: New file.
* sysdeps/unix/sysv/aix/posix_madvise.c: New file.
2003-07-31 Jakub Jelinek <jakub@redhat.com>
* dlfcn/dlerror.c (once): New.
(dlerror): Call __libc_once.
(_dlerror_run): Remove once.
2003-07-31 Jakub Jelinek <jakub@redhat.com>
* sysdeps/unix/sysv/linux/ia64/bits/sigcontext.h (struct sigcontext):
Sync with 2.5.7 and 2.5.73 kernel changes.
2003-07-31 Jakub Jelinek <jakub@redhat.com>
* dlfcn/eval.c (funcall): Add noinline attribute to shut up warnings.
* elf/rtld.c (dl_main): Cast ElfW(Addr) arguments with %Zx/%Zd
formats to size_t.
* elf/dl-lookup.c (_dl_debug_bindings): Likewise.
* elf/tst-tls6.c (do_test): Use %zd format for l_tls_modid.
* elf/tst-tls8.c (do_test): Use %zd format for modid1 and modid2.
* gmon/tst-sprofil.c (main): Add parens to shut up warning.
* iconv/tst-iconv3.c (main): Use %td instead of %zd for pointer
difference argument.
* stdio-common/tst-wc-printf.c (main): Cast arguments with %C
format to wint_t.
* stdlib/tst-limits.c (main): For WORD_BIT and LONG_BIT, use
%d format and cast expected value to int.
* sysdeps/generic/libc-start.c (STATIC): Add
__attribute__((always_inline) if LIBC_START_MAIN is already defined.
* sysdeps/powerpc/fpu/w_sqrt.c (a_nan, a_inf): Change from uint32_t
to ieee_float_shape_type.
(__sqrt): Avoid type punning.
* sysdeps/powerpc/fpu/w_sqrtf.c (a_nan, a_inf): Change from uint32_t
to ieee_float_shape_type.
(__sqrtf): Avoid type punning.
* sysdeps/s390/s390-32/dl-machine.h (elf_machine_rela): Don't define
refsym if in dl-conflict.c.
* sysdeps/s390/s390-64/dl-machine.h (elf_machine_rela): Likewise.
* sysdeps/unix/sysv/linux/i386/semctl.c (union semun): Add __old_buf.
(__new_semctl): Shut up warning.
* sysdeps/unix/sysv/linux/semctl.c (union semun): Add __old_buf.
(__new_semctl): Shut up warning.
* sysdeps/unix/sysv/linux/shmctl.c (__new_shmctl): Wrap long lines.
Change old into union of __old_shmid_ds and __old_shminfo structs.
Adjust all users.
* wcsmbs/wcsmbs-tst1.c (main): Cast arguments with %C format to wint_t.
2003-07-31 Jakub Jelinek <jakub@redhat.com>
* sysdeps/unix/sysv/linux/utimes.c (__utimes): Fix actime and
modtime computation.
* sysdeps/unix/sysv/linux/futimes.c (__futimes): Likewise.
* sysdeps/posix/utimes.c (__utimes): Likewise.
2003-06-12 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/cris/sysdep.h: Fix handling of syscalls with
more than four parameters.
Patch by Uwe Reimann <libc-alpha@pulsar.homelinux.net>.
2003-06-12 Jakub Jelinek <jakub@redhat.com>
* sysdeps/unix/sysv/linux/ia64/kernel_stat.h: New file.
* sysdeps/unix/sysv/linux/s390/s390-64/kernel_stat.h: New file.
* sysdeps/unix/sysv/linux/x86_64/kernel_stat.h: New file.
* stdio-common/printf-parsemb.c: Include stdlib.h and sys/param.h.
* sysdeps/unix/sysv/linux/ia64/sigcontext-offsets.sym: New file.
* sysdeps/unix/sysv/linux/ia64/Makefile
[$(subdir) = stdlib] (gen-as-const-headers): Add it.
* sysdeps/unix/sysv/linux/ia64/ucontext_i.h: Include it instead of
defining SC_* macros here.
* sysdeps/unix/sysv/linux/ia64/setcontext.S: Pass fourth argument to
rt_sigprocmask system call.
* sysdeps/unix/sysv/linux/ia64/ucontext_i.h (SC_MASK): Fix value.
From Peter A. Buhr <pabuhr@plg2.math.uwaterloo.ca>.
2003-05-13 David Mosberger <davidm@hpl.hp.com>
* sysdeps/unix/sysv/linux/ia64/setjmp.S: Fix the fix from
2003-03-27: setjmp is NOT a leaf-routine (due to the call to
__sigjmp_save) so we can't keep the saved unat value in a scratch
register (r16). Use loc2 instead.
2003-04-11 Ulrich Drepper <drepper@redhat.com>
* sysdeps/generic/libc-start.c: Cleanup MAIN_AUXVEC_ARG handling.
Remove HAVE_CANCELBUF code. Replace with code using the new
initializers for unwind-based cleanup handling.
* sysdeps/generic/unwind.h: Update from latest gcc version.
* sysdeps/unix/sysv/linux/i386/sysdep.h: Define labels in a few
places to allow unwind data generation.
* sysdeps/i386/bits/setjmp.h: Allow file to be included multiple times.
* sysdeps/x86_64/bits/setjmp.h: Likewise.
* sysdeps/sh/bits/setjmp.h: Likewise.
* sysdeps/powerpc/bits/setjmp.h: Likewise.
* sysdeps/unix/sysv/linux/ia64/bits/setjmp.h: Likewise.
* sysdeps/alpha/bits/setjmp.h: Likewise.
2003-03-27 David Mosberger <davidm@hpl.hp.com>
* sysdeps/ia64/dl-machine.h (RTLD_START): Wrap ".save rp, r0"
directive into empty .prologue region to ensure that call-chain
is terminated even for the first instruction.
* sysdeps/ia64/elf/start.S (_start): Use ".save rp, r0" idiom
to terminate call-chain right from the get-go.
* sysdeps/unix/sysv/linux/ia64/fork.S (fork): Remove unnecessary
stop bit between compare & branch.
2003-03-13 Jakub Jelinek <jakub@redhat.com>
* sysdeps/unix/sysv/linux/ia64/sysdep.h (BREAK_INSN_1, BREAK_INSN,
ASM_OUTARGS_0, ASM_OUTARGS_1, ASM_OUTARGS_2, ASM_OUTARGS_3,
ASM_OUTARGS_4, ASM_OUTARGS_5, ASM_OUTARGS_6): Define.
(INTERNAL_SYSCALL, INLINE_SYSCALL): Use it. Make syscall arguments
clobbered by the syscall.
(ASM_ARGS_1, ASM_ARGS_2, ASM_ARGS_3, ASM_ARGS_4, ASM_ARGS_5,
ASM_ARGS_6): Change constraints from r to index of corresponding
output register.
* sysdeps/unix/sysv/linux/ia64/clone2.S (__clone2): Swap
ptid and ctid to match kernel.
* sysdeps/unix/sysv/linux/ia64/system.c (FORK): Likewise.
* sysdeps/powerpc/powerpc64/elf/configure.in: Remove
* sysdeps/powerpc/powerpc64/elf/configure: Regenerated.
* sysdeps/unix/sysv/linux/ia64/system.c: New file.
* sysdeps/unix/sysv/linux/kernel-features.h
(__ASSUME_CLONE_THREAD_FLAGS): Define for IA-64 and s390* with
kernel >= 2.5.64.
2003-03-11 Jakub Jelinek <jakub@redhat.com>
* sysdeps/unix/sysv/linux/powerpc/powerpc64/clone.S: Don't clobber R7.
allocate space even for the trailing '/'.
Reported by John Reiser <jreiser@BitWagon.com>.
* sysdeps/unix/sysv/linux/ia64/sysdep.h (LOAD_ARGS_6, ASM_ARGS_6,
ASM_CLOBBERS_6): Define.
(ASM_CLOBBERS_5): Use ASM_CLOBBERS_6.
* sysdeps/unix/sysv/linux/ia64/clone2.S (__clone2): Reorder arguments
to match IA-32 order.
* sysdeps/unix/sysv/linux/i386/clone.S: Fix comment.
2003-03-03 Ian Wienand <ianw@gelato.unsw.edu.au>
* sysdeps/unix/sysv/linux/ia64/clone2.S: Update to take extra clone
flags.
* include/sched.h: Update clone2 prototype.
2002-12-28 Ulrich Drepper <drepper@redhat.com>
* descr.h (struct pthread): Move header.data.list to the back of the
struct.
* sysdeps/i386/tls.h (tcbhead_t): Move list to the back of the struct.
(MULTIPLE_THREADS_OFFSET): Adjust offset.
(SYSINFO_OFFSEET): Likewise.
2002-12-27 Jakub Jelinek <jakub@redhat.com>
* sysdeps/unix/sysv/linux/i386/i686/dl-sysdep.h (USE_DL_SYSINFO):
Define.
(DL_SYSINFO_DEFAULT): Cast to uintptr_t to avoid warnings.
* sysdeps/unix/sysv/linux/i386/dl-sysdep.h (NEED_DL_SYSINFO,
DL_SYSINFO_DEFAULT, DL_SYSINFO_IMPLEMENTATION): Define.
(USE_DL_SYSINFO): Undef.
2002-12-22 Jakub Jelinek <jakub@redhat.com>
* Makefile (tests-reverse): Use $(objpfx)../libc.so instead of
$(common-objpfx)libc.so.
* tst-cancel4.c (tf_write, tf_writev): Increase buf sizes so that
it is bigger than pipe buffer size even on arches with bigger
page size.
(tf_usleep): Cast usleep argument to useconds_t to avoid warnings.
From Ian Wienand <ianw@gelato.unsw.edu.au>.
* sysdeps/unix/sysv/linux/ia64/sysdep.h (__NR_pread): Define to
__NR_pread64 if not defined.
(__NR_pwrite): Define to __NR_pwrite64 if not defined.
From Ian Wienand <ianw@gelato.unsw.edu.au>.
Check for the result overflowing off_t and fail with EOVERFLOW.
* libio/ioftell.c (_IO_ftell): Likewise.
* libio/iofgetpos.c (_IO_new_fgetpos): Likewise.
* login/logwtmp.c (logwtmp): If sizeof ut_tv != sizeof struct timeval,
use a temporary timeval on the stack for gettimeofday and copy it.
* login/logout.c (logout): Likewise.
Reported by Steven Munroe <sjmunroe@us.ibm.com>.
* sysdeps/unix/sysv/linux/bits/statfs.h (struct statfs):
Use __SWORD_TYPE instead of int for member types.
(struct statfs64): Likewise.
* sysdeps/unix/sysv/linux/alpha/bits/statfs.h: New file.
* sysdeps/unix/sysv/linux/s390/bits/statfs.h: New file.
* sysdeps/unix/sysv/linux/ia64/bits/statfs.h: File removed.
* sysdeps/unix/sysv/linux/sparc/bits/statfs.h: File removed.
* sysdeps/unix/sysv/linux/x86_64/bits/statfs.h: File removed.
* sysdeps/unix/sysv/linux/sparc/bits/statvfs.h: Moved to ...
* sysdeps/unix/sysv/linux/bits/statvfs.h: ... here.
(ST_NODIRATIME): Restore fixed value of 2048.
* sysdeps/unix/sysv/linux/alpha/bits/statvfs.h: File removed.
* sysdeps/unix/sysv/linux/ia64/bits/statvfs.h: File removed.
Rearranged <bits/types.h> definitions to reduce duplication.
* sysdeps/generic/bits/types.h: Rewritten, using macros from
<bits/wordsize.h> and new header <bits/typesizes.h>.
* posix/Makefile (headers): Add bits/typesizes.h here.
* sysdeps/generic/bits/typesizes.h: New file.
* sysdeps/unix/sysv/linux/alpha/bits/typesizes.h: New file.
* sysdeps/unix/sysv/linux/sparc/bits/typesizes.h: New file.
* sysdeps/mach/hurd/bits/typesizes.h: New file.
* sysdeps/unix/sysv/linux/alpha/bits/types.h: File removed.
* sysdeps/unix/sysv/linux/bits/types.h: File removed.
* sysdeps/unix/sysv/linux/ia64/bits/types.h: File removed.
* sysdeps/unix/sysv/linux/mips/bits/types.h: File removed.
* sysdeps/unix/sysv/linux/s390/bits/types.h: File removed.
* sysdeps/unix/sysv/linux/sparc/bits/types.h: File removed.
* sysdeps/unix/sysv/linux/x86_64/bits/types.h: File removed.
* posix/sys/types.h [__USE_POSIX199506 || __USE_UNIX98]: Include
<bits/pthreadtypes.h> here, not in <bits/types.h>.
* signal/signal.h: Likewise.
* streams/stropts.h: Include <bits/xtitypes.h>.
* streams/Makefile (headers): Add bits/xtitypes.h here.
* sysdeps/generic/bits/xtitypes.h: New file.
* sysdeps/s390/bits/xtitypes.h: New file.
* sysdeps/ia64/bits/xtitypes.h: New file.
* sysdeps/x86_64/bits/xtitypes.h: New file.
* sysvipc/Makefile (headers): Add bits/ipctypes.h here.
* sysdeps/generic/bits/ipctypes.h: New file.
* sysdeps/mips/bits/ipctypes.h: New file.
* sysdeps/gnu/bits/shm.h: Include <bits/ipctypes.h>.
* sysdeps/gnu/bits/msq.h: Likewise.
* sysvipc/sys/ipc.h: Likewise.
2002-10-22 Roland McGrath <roland@redhat.com>
* sysdeps/generic/libc-tls.c (_dl_tls_static_used): New variable.
* sysdeps/generic/ldsodefs.h (struct rtld_global): New member
`_dl_tls_static_used'.
(TLS_STATIC_MIN): New macro.
* elf/dl-reloc.c [USE_TLS] (allocate_static_tls): New function.
(CHECK_STATIC_TLS): Use it.
sysdeps/unix/sysv/linux/i386/bits/time.h file. All the following
files were identical except for the absence of CLOCK_THREAD_CPUTIME_ID
and CLOCK_PROCESS_CPUTIME_ID in .../linux/bits/time.h; adding these
macros is ok even for architectures that don't now implement them.
* sysdeps/mach/hurd/bits/time.h: File removed.
* sysdeps/unix/sysv/linux/bits/time.h: File removed.
* sysdeps/unix/sysv/linux/i386/bits/time.h: File removed.
* sysdeps/unix/sysv/linux/ia64/bits/time.h: File removed.
* sysdeps/unix/sysv/linux/sparc/bits/time.h: File removed.
* sysdeps/unix/sysv/linux/x86_64/bits/time.h: File removed.
(struct lastlog) [__WORDSIZE == 64 && __WORDSIZE_COMPAT32]:
Use int32_t for ll_time.
(struct utmp) [__WORDSIZE == 64 && __WORDSIZE_COMPAT32]:
Use int32_t instead of long int for ut_session.
Use an anonymous struct with 32-bit fields for ut_tv.
* sysdeps/gnu/bits/utmpx.h: Include <bits/wordsize.h>.
(struct utmpx) [__WORDSIZE == 64 && __WORDSIZE_COMPAT32]: Do the same
here as in utmp.h for `struct utmp'.
* sysdeps/unix/sysv/linux/powerpc/bits/utmp.h: File removed.
* sysdeps/unix/sysv/linux/powerpc/bits/utmpx.h: File removed.
* sysdeps/unix/sysv/linux/sparc/bits/utmp.h: File removed.
* sysdeps/unix/sysv/linux/sparc/bits/utmpx.h: File removed.
* sysdeps/unix/sysv/linux/x86_64/bits/utmp.h: File removed.
* sysdeps/unix/sysv/linux/x86_64/bits/utmpx.h: File removed.
* sysdeps/unix/sysv/linux/bits/resource.h: Replaced with the contents
of the sysdeps/unix/sysv/linux/i386/bits/resource.h file.
All the following files were identical or equivalent to it.
* sysdeps/unix/sysv/linux/i386/bits/resource.h: File removed.
* sysdeps/unix/sysv/linux/arm/bits/resource.h: File removed.
* sysdeps/unix/sysv/linux/cris/bits/resource.h: File removed.
* sysdeps/unix/sysv/linux/hppa/bits/resource.h: File removed.
* sysdeps/unix/sysv/linux/ia64/bits/resource.h: File removed.
* sysdeps/unix/sysv/linux/m68k/bits/resource.h: File removed.
* sysdeps/unix/sysv/linux/powerpc/bits/resource.h: File removed.
* sysdeps/unix/sysv/linux/s390/bits/resource.h: File removed.
* sysdeps/unix/sysv/linux/sh/bits/resource.h: File removed.
* sysdeps/unix/sysv/linux/x86_64/bits/resource.h: File removed.
* sysdeps/unix/sysv/linux/bits/socket.h (struct msghdr): Use size_t
instead of int for msg_iovlen, instead of socklen_t for msg_controllen.
Other than the previously incorrect sign of msg_iovlen, this is a
no-op on 32-bit platforms. On 64-bit platforms it makes this header
match their layouts as well, so the following are now identical to it.
* sysdeps/unix/sysv/linux/s390/bits/socket.h: File removed.
* sysdeps/unix/sysv/linux/sparc/bits/socket.h: File removed.
* sysdeps/unix/sysv/linux/x86_64/bits/socket.h: File removed.
* sysdeps/unix/sysv/linux/ia64/bits/socket.h: File removed.
* sysdeps/unix/sysv/linux/alpha/bits/socket.h: File removed.
Siddhesh Poyarekar
Carlos O'Donell
Joseph Myers
Mike Frysinger
Roland McGrath
Andi Kleen
Torvald Riegel
Adhemerval Zanella
Ulrich Drepper
Roland McGrath
David S. Miller
Andreas Schwab
Ulrich Drepper
Jakub Jelinek
H.J. Lu
Andreas Jaeger
Roland McGrath