diff options
| author | David Gibson <david@gibson.dropbear.id.au> | 2007-08-28 14:52:57 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2007-09-14 01:33:19 +1000 |
| commit | 0ae0b54565a8dcc2b98de694b998e765de15b713 (patch) | |
| tree | 21bbfa5618d55460e2e90ef0e876b1c6c03b42f7 | |
| parent | 768cc2d3b2768ca34f254e8190f1f9e297b09ad4 (diff) | |
[POWERPC] Move bootwrapper's strchr() and strncmp() from .h to string.S
Currently the bootwrapper has implementations of strchr() and
strncmp(), but they're inlines in flatdevtree_env.h, rather than in
string.S with all the rest of the string functions. This moves
them to string.S.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
| -rw-r--r-- | arch/powerpc/boot/flatdevtree_env.h | 20 | ||||
| -rw-r--r-- | arch/powerpc/boot/string.S | 24 | ||||
| -rw-r--r-- | arch/powerpc/boot/string.h | 2 |
3 files changed, 26 insertions, 20 deletions
diff --git a/arch/powerpc/boot/flatdevtree_env.h b/arch/powerpc/boot/flatdevtree_env.h index 83bc1c718836..ad0420da8921 100644 --- a/arch/powerpc/boot/flatdevtree_env.h +++ b/arch/powerpc/boot/flatdevtree_env.h @@ -24,24 +24,4 @@ #define be64_to_cpu(x) (x) #define cpu_to_be64(x) (x) -static inline int strncmp(const char *cs, const char *ct, size_t count) -{ - signed char __res = 0; - - while (count) { - if ((__res = *cs - *ct++) != 0 || !*cs++) - break; - count--; - } - return __res; -} - -static inline char *strchr(const char *s, int c) -{ - for (; *s != (char)c; ++s) - if (*s == '\0') - return NULL; - return (char *)s; -} - #endif /* _PPC_BOOT_FLATDEVTREE_ENV_H_ */ diff --git a/arch/powerpc/boot/string.S b/arch/powerpc/boot/string.S index ac3d43b6a324..2627558bcb71 100644 --- a/arch/powerpc/boot/string.S +++ b/arch/powerpc/boot/string.S @@ -49,6 +49,17 @@ strcat: bne 1b blr + .globl strchr +strchr: + addi r3,r3,-1 +1: lbzu r0,1(r3) + cmpw 0,r0,r4 + beqlr + cmpwi 0,r0,0 + bne 1b + li r3,0 + blr + .globl strcmp strcmp: addi r5,r3,-1 @@ -61,6 +72,19 @@ strcmp: beq 1b blr + .globl strncmp +strncmp: + mtctr r5 + addi r5,r3,-1 + addi r4,r4,-1 +1: lbzu r3,1(r5) + cmpwi 1,r3,0 + lbzu r0,1(r4) + subf. r3,r0,r3 + beqlr 1 + bdnzt eq,1b + blr + .globl strlen strlen: addi r4,r3,-1 diff --git a/arch/powerpc/boot/string.h b/arch/powerpc/boot/string.h index 9fdff1cc0d70..4650030d1040 100644 --- a/arch/powerpc/boot/string.h +++ b/arch/powerpc/boot/string.h @@ -5,7 +5,9 @@ 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); |