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[POWERPC] Add hand-coded assembly strcmp

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We have an assembly version of strncmp for the bootwrapper, but not
for the kernel, so we end up using the C version in the kernel.  This
takes the strncmp code from the bootup and copies it to the kernel
proper, adding two instructions so it copes correctly with len==0.

Signed-off-by: Steven Rostedt <[email protected]>
Signed-off-by: Paul Mackerras <[email protected]>
This commit is contained in:
Steven Rostedt 2008-03-01 03:04:57 +11:00 • committed by Paul Mackerras
commit 0119536cd3
3 changed files with 17 additions and 0 deletions
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2
include/asm-powerpc/string.h
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@ -7,6 +7,7 @@
#define __HAVE_ARCH_STRNCPY
#define __HAVE_ARCH_STRLEN
#define __HAVE_ARCH_STRCMP
#define __HAVE_ARCH_STRNCMP
#define __HAVE_ARCH_STRCAT
#define __HAVE_ARCH_MEMSET
#define __HAVE_ARCH_MEMCPY
@ -18,6 +19,7 @@ extern char * strcpy(char *,const char *);
extern char * strncpy(char *,const char *, __kernel_size_t);
extern __kernel_size_t strlen(const char *);
extern int strcmp(const char *,const char *);
extern int strncmp(const char *, const char *, __kernel_size_t);
extern char * strcat(char *, const char *);
extern void * memset(void *,int,__kernel_size_t);
extern void * memcpy(void *,const void *,__kernel_size_t);