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Merge "Fix unnecessary call to __strncpy_chk2"

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Nick Kralevich 2013-09-27 22:13:19 +00:00 committed by Gerrit Code Review
commit 6aed6077fb
1 changed files with 4 additions and 0 deletions
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4
libc/include/string.h
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@ -135,6 +135,10 @@ char* strncpy(char* __restrict dest, const char* __restrict src, size_t n) {
return __builtin___strncpy_chk(dest, src, n, bos_dest); return __builtin___strncpy_chk(dest, src, n, bos_dest);
} }
if (__builtin_constant_p(n) && (n <= bos_src)) {
return __builtin___strncpy_chk(dest, src, n, bos_dest);
}
size_t slen = __builtin_strlen(src); size_t slen = __builtin_strlen(src);
if (__builtin_constant_p(slen)) { if (__builtin_constant_p(slen)) {
return __builtin___strncpy_chk(dest, src, n, bos_dest); return __builtin___strncpy_chk(dest, src, n, bos_dest);