glibc/sysdeps/unix/sysv/linux/sparc/sparc64
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
..
bits
Implies
Makefile
Versions
____longjmp_chk.S
__longjmp.S
__start_context.S
arch-syscall.h
bsd-_setjmp.S
bsd-setjmp.S
c++-types.data
clone.S
configure
configure.ac
dl-cache.h
getcontext.S
ipc_priv.h
jmp_buf-macros.h
kernel_stat.h
kstat_cp.h
ld.abilist
libBrokenLocale.abilist
libanl.abilist
libc.abilist String: Add support for __memcmpeq() ABI on all targets 2021-10-26 16:51:29 -05:00
libc_malloc_debug.abilist
libc_sigaction.c
libcrypt.abilist
libdl.abilist
libm.abilist Add fmaximum, fminimum functions 2021-09-28 23:31:35 +00:00
libnsl.abilist
libpthread.abilist
libresolv.abilist
librt.abilist
libthread_db.abilist
libutil.abilist
localplt.data
longjmp.S
makecontext.c
personality.c
pipe.S
register-dump.h
setcontext.S
setjmp.S
shlib-versions
sigcontextinfo.h
sigjmp.S
sigreturn_stub.S
sizes.h
swapcontext.c
syscall.S
syscalls.list
sysdep.h
timer_t_was_int_compat.h
ucontext_i.h
vfork.S
wordexp.c
xstatconv.c