diff options
| author | Anton Blanchard <anton@samba.org> | 2013-09-23 12:04:52 +1000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2013-10-11 16:48:40 +1100 |
| commit | de577a356848a629b2c7f252ca3d1bc87375b52b (patch) | |
| tree | 760025969501b054544c1e106e13f12da8fb3b96 | |
| parent | 7a332b0c9a59e0b0777dec55eefdda0f9a24ac52 (diff) | |
powerpc: Use generic memcpy code in little endian
We need to fix some endian issues in our memcpy code. For now
just enable the generic memcpy routine for little endian builds.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| -rw-r--r-- | arch/powerpc/include/asm/string.h | 4 | ||||
| -rw-r--r-- | arch/powerpc/kernel/ppc_ksyms.c | 2 | ||||
| -rw-r--r-- | arch/powerpc/lib/Makefile | 9 |
3 files changed, 12 insertions, 3 deletions
diff --git a/arch/powerpc/include/asm/string.h b/arch/powerpc/include/asm/string.h index e40010abcaf1..0dffad6bcc84 100644 --- a/arch/powerpc/include/asm/string.h +++ b/arch/powerpc/include/asm/string.h @@ -10,7 +10,9 @@ #define __HAVE_ARCH_STRNCMP #define __HAVE_ARCH_STRCAT #define __HAVE_ARCH_MEMSET +#ifdef __BIG_ENDIAN__ #define __HAVE_ARCH_MEMCPY +#endif #define __HAVE_ARCH_MEMMOVE #define __HAVE_ARCH_MEMCMP #define __HAVE_ARCH_MEMCHR @@ -22,7 +24,9 @@ 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); +#ifdef __BIG_ENDIAN__ extern void * memcpy(void *,const void *,__kernel_size_t); +#endif extern void * memmove(void *,const void *,__kernel_size_t); extern int memcmp(const void *,const void *,__kernel_size_t); extern void * memchr(const void *,int,__kernel_size_t); diff --git a/arch/powerpc/kernel/ppc_ksyms.c b/arch/powerpc/kernel/ppc_ksyms.c index 3b485c5cff10..60bbeb29f9b8 100644 --- a/arch/powerpc/kernel/ppc_ksyms.c +++ b/arch/powerpc/kernel/ppc_ksyms.c @@ -148,7 +148,9 @@ EXPORT_SYMBOL(__ucmpdi2); #endif long long __bswapdi2(long long); EXPORT_SYMBOL(__bswapdi2); +#ifdef __BIG_ENDIAN__ EXPORT_SYMBOL(memcpy); +#endif EXPORT_SYMBOL(memset); EXPORT_SYMBOL(memmove); EXPORT_SYMBOL(memcmp); diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile index 33ab26112123..5310132856c1 100644 --- a/arch/powerpc/lib/Makefile +++ b/arch/powerpc/lib/Makefile @@ -15,15 +15,18 @@ obj-$(CONFIG_PPC32) += div64.o copy_32.o obj-$(CONFIG_HAS_IOMEM) += devres.o obj-$(CONFIG_PPC64) += copypage_64.o copyuser_64.o \ - memcpy_64.o usercopy_64.o mem_64.o string.o \ + usercopy_64.o mem_64.o string.o \ hweight_64.o \ - copyuser_power7.o string_64.o copypage_power7.o \ - memcpy_power7.o + copyuser_power7.o string_64.o copypage_power7.o ifeq ($(CONFIG_GENERIC_CSUM),) obj-y += checksum_$(CONFIG_WORD_SIZE).o obj-$(CONFIG_PPC64) += checksum_wrappers_64.o endif +ifeq ($(CONFIG_CPU_LITTLE_ENDIAN),) +obj-$(CONFIG_PPC64) += memcpy_power7.o memcpy_64.o +endif + obj-$(CONFIG_PPC_EMULATE_SSTEP) += sstep.o ldstfp.o ifeq ($(CONFIG_PPC64),y) |