Patch set updated for coreboot: 47697f1 Add an implementation for the memchr library function

[Stefan Reinauer]

Stefan Reinauer ([e-mail]) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/708

-gerrit

commit 47697f1d75a2f22e828e672ad6da6786e82b9361
Author: Gabe Black 
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 
---
 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;
+}