Stefan Reinauer (stefan.reinauer@coreboot.org) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/708
-gerrit
commit daf3d89987751a461bc8d1db86e13644acc46047 Author: Gabe Black gabeblack@google.com Date: Fri Sep 16 02:18:56 2011 -0700
Add an implementation for the memchr library function
Change-Id: Icded479d246f7cce8a3d2154c69f75178fa513e1 Signed-off-by: Gabe Black gabeblack@google.com --- src/include/string.h | 1 + src/lib/Makefile.inc | 2 ++ 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 2168947..708961b 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 906dfae..e0e5e75 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 0000000..a890dce --- /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; +}