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Commit 9b4b8feb authored by David Gibson's avatar David Gibson Committed by Paul Mackerras
Browse files

[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: default avatarDavid Gibson <david@gibson.dropbear.id.au>
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
parent d0c3d534

arch/powerpc/boot/string.S

+13 −0
Original line number Diff line number Diff line
@@ -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

arch/powerpc/boot/string.h

+1 −0
Original line number Diff line number Diff line
@@ -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_ */