Commit 0ae0b545 authored by David Gibson's avatar David Gibson Committed by Paul Mackerras
Browse files

[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: default avatarDavid Gibson <david@gibson.dropbear.id.au>
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
parent 768cc2d3

arch/powerpc/boot/flatdevtree_env.h

+0 −20
Original line number Diff line number Diff line
@@ -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_ */

arch/powerpc/boot/string.S

+24 −0
Original line number Diff line number Diff line
@@ -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

arch/powerpc/boot/string.h

+2 −0
Original line number Diff line number Diff line
@@ -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);