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44829b3ddb
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. |
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| .. | ||
| fpu | ||
| multiarch | ||
| nptl | ||
| add_n.S | ||
| bcopy.S | ||
| bzero.S | ||
| dl-hash.h | ||
| ffs.c | ||
| isa.h | ||
| Makefile | ||
| memcmp.S | ||
| memcpy.S | ||
| memmove.S | ||
| mempcpy.S | ||
| memset.S | ||
| memusage.h | ||
| pthread_spin_trylock.S | ||
| strcmp.S | ||