diff options
| -rw-r--r-- | src/include/string.h | 1 | ||||
| -rw-r--r-- | src/lib/Makefile.inc | 2 | ||||
| -rw-r--r-- | src/lib/memchr.c | 11 |
3 files changed, 14 insertions, 0 deletions
diff --git a/src/include/string.h b/src/include/string.h index 21689473ce..708961b635 100644 --- a/src/include/string.h +++ b/src/include/string.h @@ -8,6 +8,7 @@ void *memcpy(void *dest, const void *src, size_t n); void *memmove(void *dest, const void *src, size_t n); void *memset(void *s, int c, size_t n); int memcmp(const void *s1, const void *s2, size_t n); +void *memchr(const void *s, int c, size_t n); #if !defined(__PRE_RAM__) int sprintf(char * buf, const char *fmt, ...); #endif diff --git a/src/lib/Makefile.inc b/src/lib/Makefile.inc index 432e24e780..a31033cf5c 100644 --- a/src/lib/Makefile.inc +++ b/src/lib/Makefile.inc @@ -1,6 +1,7 @@ romstage-y += memset.c +romstage-y += memchr.c romstage-y += memcpy.c romstage-y += memcmp.c romstage-y += cbfs.c @@ -15,6 +16,7 @@ romstage-$(CONFIG_CONSOLE_NE2K) += compute_ip_checksum.c romstage-$(CONFIG_USBDEBUG) += usbdebug.c ramstage-y += memset.c +ramstage-y += memchr.c ramstage-y += memcpy.c ramstage-y += memcmp.c ramstage-y += memmove.c diff --git a/src/lib/memchr.c b/src/lib/memchr.c new file mode 100644 index 0000000000..a890dceada --- /dev/null +++ b/src/lib/memchr.c @@ -0,0 +1,11 @@ +#include <string.h> +void *memchr(const void *s, int c, size_t n) +{ + const unsigned char *sc = s; + while (n--) { + if (*sc == (unsigned char)c) + return (void *)sc; + sc++; + } + return NULL; +} |