From 0ae0b54565a8dcc2b98de694b998e765de15b713 Mon Sep 17 00:00:00 2001 From: David Gibson <david@gibson.dropbear.id.au> Date: Tue, 28 Aug 2007 14:52:57 +1000 Subject: [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> --- arch/powerpc/boot/string.S | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) (limited to 'arch/powerpc/boot/string.S') diff --git a/arch/powerpc/boot/string.S b/arch/powerpc/boot/string.S index ac3d43b6a32..2627558bcb7 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 -- cgit v1.2.3-70-g09d2 From 9b4b8feb962f4b3e74768b7205f1f8f6cce87238 Mon Sep 17 00:00:00 2001 From: David Gibson <david@gibson.dropbear.id.au> Date: Fri, 12 Oct 2007 12:36:20 +1000 Subject: [POWERPC] Add memchr() to the bootwrapper This adds a memchr() implementation to the bootwrapper, which will be needed when libfdt is merged in. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org> --- arch/powerpc/boot/string.S | 13 +++++++++++++ arch/powerpc/boot/string.h | 1 + 2 files changed, 14 insertions(+) (limited to 'arch/powerpc/boot/string.S') diff --git a/arch/powerpc/boot/string.S b/arch/powerpc/boot/string.S index 2627558bcb7..643e4cb2f11 100644 --- a/arch/powerpc/boot/string.S +++ b/arch/powerpc/boot/string.S @@ -219,6 +219,19 @@ backwards_memcpy: mtctr r7 b 1b + .globl memchr +memchr: + cmpwi 0,r5,0 + blelr + mtctr r5 + addi r3,r3,-1 +1: lbzu r0,1(r3) + cmpw r0,r4 + beqlr + bdnz 1b + li r3,0 + blr + .globl memcmp memcmp: cmpwi 0,r5,0 diff --git a/arch/powerpc/boot/string.h b/arch/powerpc/boot/string.h index 4650030d104..50091cc0eed 100644 --- a/arch/powerpc/boot/string.h +++ b/arch/powerpc/boot/string.h @@ -14,6 +14,7 @@ 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_ */ -- cgit v1.2.3-70-g09d2