mirror of git://sourceware.org/git/glibc.git
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. |
||
---|---|---|
.. | ||
bits | ||
sparc32 | ||
sparc64 | ||
sys | ||
Implies | ||
Makefile | ||
Versions | ||
a.out.h | ||
aio_cancel.c | ||
brk.c | ||
configure | ||
configure.ac | ||
dl-cache.h | ||
errlist-compat.c | ||
getrlimit64.c | ||
getshmlba.c | ||
kernel-features.h | ||
kernel_sigaction.h | ||
kernel_termios.h | ||
ldd-rewrite.sed | ||
librt-compat.c | ||
profil-counter.h | ||
readelflib.c | ||
rt-sysdep.c | ||
socket-constants-time64.h | ||
struct_kernel_shmid64_ds.h | ||
sysdep.c | ||
sysdep.h | ||
xstatver.h |