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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
..
a2 Remove "Contributed by" lines 2021-09-03 22:06:44 +05:30
be Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
bits
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cell Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
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
multiarch String: Add support for __memcmpeq() ABI on all targets 2021-10-26 16:51:29 -05:00
power4 String: Add support for __memcmpeq() ABI on all targets 2021-10-26 16:51:29 -05:00
power6 Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
power7 String: Add support for __memcmpeq() ABI on all targets 2021-10-26 16:51:29 -05:00
power8 String: Add support for __memcmpeq() ABI on all targets 2021-10-26 16:51:29 -05:00
Implies
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Makefile Remove stale references to libdl.a 2021-06-09 19:14:02 +02:00
__longjmp-common.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
__longjmp.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
addmul_1.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
atomic-machine.h Remove "Contributed by" lines 2021-09-03 22:06:44 +05:30
bsd-_setjmp.S
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bsd-setjmp.S
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bzero.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
configure
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configure.ac
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crti.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
crtn.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
dl-dtprocnum.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
dl-funcdesc.h elf: Fix dynamic-link.h usage on rtld.c 2021-10-14 14:52:07 -03:00
dl-irel.h elf: Fix dynamic-link.h usage on rtld.c 2021-10-14 14:52:07 -03:00
dl-machine.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
dl-machine.h elf: Fix dynamic-link.h usage on rtld.c 2021-10-14 14:52:07 -03:00
dl-trampoline.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
entry.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
ffsll.c Remove "Contributed by" lines 2021-09-03 22:06:44 +05:30
hp-timing.h Remove "Contributed by" lines 2021-09-03 22:06:44 +05:30
lshift.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
memcpy.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
memset.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
mul_1.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
ppc-mcount.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
register-dump.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
rtld-memset.c
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setjmp-bug21895.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
setjmp-common.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
setjmp.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
stackguard-macros.h
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start.S Reduce the statically linked startup code [BZ #23323] 2021-02-25 12:13:02 +01:00
strchr.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
strcmp.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
strlen.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
strncmp.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
submul_1.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
sysdep.h Add build option to disable usage of scv on powerpc 2021-06-10 16:23:25 -03:00
tst-audit.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-setjmp-bug21895-static.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-ucontext-ppc64-vscr.c powerpc: Fix unrecognized instruction errors with recent GCC 2021-09-20 16:52:38 -05:00