1 files changed, 3 insertions, 0 deletions

diff --git a/arch/powerpc/boot/string.h b/arch/powerpc/boot/string.h
index 9fdff1cc0d70..50091cc0eed9 100644
--- a/arch/powerpc/boot/string.h
+++ b/arch/powerpc/boot/string.h
@@ -5,13 +5,16 @@
 extern char *strcpy(char *dest, const char *src);
 extern char *strncpy(char *dest, const char *src, size_t n);
 extern char *strcat(char *dest, const char *src);
+extern char *strchr(const char *s, int c);
 extern int strcmp(const char *s1, const char *s2);
+extern int strncmp(const char *s1, const char *s2, size_t n);
 extern size_t strlen(const char *s);
 extern size_t strnlen(const char *s, size_t count);
 
 extern void *memset(void *s, int c, size_t n);
 extern void *memmove(void *dest, const void *src, unsigned long n);
 extern void *memcpy(void *dest, const void *src, unsigned long n);
+extern void *memchr(const void *s, int c, size_t n);
 extern int memcmp(const void *s1, const void *s2, size_t n);
 
 #endif  /* _PPC_BOOT_STRING_H_ */