glibc/sysdeps/unix/sysv/linux/powerpc/powerpc64
Noah Goldstein 44829b3ddb String: Add support for __memcmpeq() ABI on all targets
No bug.

This commit adds support for __memcmpeq() as a new ABI for all
targets. In this commit __memcmpeq() is implemented only as an alias
to the corresponding targets memcmp() implementation. __memcmpeq() is
added as a new symbol starting with GLIBC_2.35 and defined in string.h
with comments explaining its behavior. Basic tests that it is callable
and works where added in string/tester.c

As discussed in the proposal "Add new ABI '__memcmpeq()' to libc"
__memcmpeq() is essentially a reserved namespace for bcmp(). The means
is shares the same specifications as memcmp() except the return value
for non-equal byte sequences is any non-zero value. This is less
strict than memcmp()'s return value specification and can be better
optimized when a boolean return is all that is needed.

__memcmpeq() is meant to only be called by compilers if they can prove
that the return value of a memcmp() call is only used for its boolean
value.

All tests in string/tester.c passed. As well build succeeds on
x86_64-linux-gnu target.
2021-10-26 16:51:29 -05:00
..
be String: Add support for __memcmpeq() ABI on all targets 2021-10-26 16:51:29 -05:00
fpu Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
le String: Add support for __memcmpeq() ABI on all targets 2021-10-26 16:51:29 -05:00
____longjmp_chk.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
arch-pkey.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
arch-syscall.h Update syscall lists for Linux 5.14 2021-09-08 12:42:06 +00:00
c++-types.data powerpc: Consolidate nptl/ subdirectories under linux/.... 2014-06-23 09:40:01 -07:00
clone.S Add build option to disable usage of scv on powerpc 2021-06-10 16:23:25 -03:00
configure LIBC_SLIBDIR_RTLDDIR: substitute arguments in single quotes 2018-01-25 17:20:28 +01:00
configure.ac powerpc: Set minimum kernel version for powerpc64le 2017-02-07 10:49:47 +05:30
dl-cache.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
getcontext.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
Implies Revert "Use ieee754/dbl-64/wordsize-64 on powerpc64" 2013-01-10 10:44:05 +01:00
jmp_buf-macros.h Add jmp_buf-macros.h 2017-11-09 05:10:03 -08:00
ldsodefs.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
localplt.data mtrace: Wean away from malloc hooks 2021-07-22 18:38:06 +05:30
makecontext.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
pkey_get.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
pkey_set.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
setcontext.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
shlib-versions Remove shlib-versions entries redundant with DEFAULT entries. 2014-09-26 17:34:22 +00:00
swapcontext.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
sysdep.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
timer_t_was_int_compat.h Linux: Define TIMER_T_WAS_INT_COMPAT in kernel-posix-timers.h 2021-06-28 09:51:00 +02:00
ucontext_i.sym PowerPC64 ELFv2 ABI 4/6: Stack frame layout changes 2013-12-04 07:41:39 -06:00
Versions Linux: Move timer_settime, __timer_settime64 from librt to libc 2021-06-28 09:51:01 +02:00
vfork.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00