diff options
| author | Leandro Lupori <luporl@FreeBSD.org> | 2020-01-15 19:53:03 +0000 |
|---|---|---|
| committer | Leandro Lupori <luporl@FreeBSD.org> | 2020-01-15 19:53:03 +0000 |
| commit | 181e35008cfbe18b2cfccb08d349415d8c21d8b6 (patch) | |
| tree | b45061f4afc62ad53a6b4b5871098055830ae5a6 /lib/libc/string/strncpy.c | |
| parent | 075fb85f0904d5a9ddb59d03f78a5dcb4237903d (diff) | |
[PPC64] strncpy optimization
Assembly optimization of strncpy for PowerPC64, using double words
instead of bytes to copy strings.
Submitted by: Leonardo Bianconi <leonardo.bianconi_eldorado.org.br> (original version)
Reviewed by: jhibbits
Differential Revision: https://reviews.freebsd.org/D15369
Notes
svn path=/head/; revision=356766
Diffstat (limited to 'lib/libc/string/strncpy.c')
| -rw-r--r-- | lib/libc/string/strncpy.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/lib/libc/string/strncpy.c b/lib/libc/string/strncpy.c index 3c02ccae41d8..2ffce161c5c5 100644 --- a/lib/libc/string/strncpy.c +++ b/lib/libc/string/strncpy.c @@ -44,8 +44,17 @@ __FBSDID("$FreeBSD$"); * Copy src to dst, truncating or null-padding to always copy n bytes. * Return dst. */ +#ifdef WEAK_STRNCPY +__weak_reference(__strncpy, strncpy); +#endif + char * -strncpy(char * __restrict dst, const char * __restrict src, size_t n) +#ifdef WEAK_STRNCPY +__strncpy +#else +strncpy +#endif +(char * __restrict dst, const char * __restrict src, size_t n) { if (n != 0) { char *d = dst; |