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authorAndi Kleen <ak@suse.de>2006-03-25 18:29:49 +0300
committerLinus Torvalds <torvalds@g5.osdl.org>2006-03-25 20:10:53 +0300
commit6edfba1b33c701108717f4e036320fc39abe1912 (patch)
tree48f69c4e9c103c88541d4c5e36fae9a688c45bb1
parent681558fdb5848f0a6dc248108f0f7323f7380857 (diff)
downloadlinux-6edfba1b33c701108717f4e036320fc39abe1912.tar.xz
[PATCH] x86_64: Don't define string functions to builtin
gcc should handle this anyways, and it causes problems when sprintf is turned into strcpy by gcc behind our backs and the C fallback version of strcpy is actually defining __builtin_strcpy Then drop -ffreestanding from the main Makefile because it isn't needed anymore and implies -fno-builtin, which is wrong now. (it was only added for x86-64, so dropping it should be safe) Noticed by Roman Zippel Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
-rw-r--r--Makefile3
-rw-r--r--arch/i386/Makefile3
-rw-r--r--include/asm-x86_64/string.h17
3 files changed, 7 insertions, 16 deletions
diff --git a/Makefile b/Makefile
index 7bc2f4ad8093..af6210d48836 100644
--- a/Makefile
+++ b/Makefile
@@ -306,8 +306,7 @@ LINUXINCLUDE := -Iinclude \
CPPFLAGS := -D__KERNEL__ $(LINUXINCLUDE)
CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
- -fno-strict-aliasing -fno-common \
- -ffreestanding
+ -fno-strict-aliasing -fno-common
AFLAGS := -D__ASSEMBLY__
# Read KERNELRELEASE from .kernelrelease (if it exists)
diff --git a/arch/i386/Makefile b/arch/i386/Makefile
index ff6973a85c8f..c848a5b30391 100644
--- a/arch/i386/Makefile
+++ b/arch/i386/Makefile
@@ -39,6 +39,9 @@ include $(srctree)/arch/i386/Makefile.cpu
cflags-$(CONFIG_REGPARM) += -mregparm=3
+# temporary until string.h is fixed
+cflags-y += -ffreestanding
+
# Disable unit-at-a-time mode on pre-gcc-4.0 compilers, it makes gcc use
# a lot more stack due to the lack of sharing of stacklots:
CFLAGS += $(shell if [ $(call cc-version) -lt 0400 ] ; then echo $(call cc-option,-fno-unit-at-a-time); fi ;)
diff --git a/include/asm-x86_64/string.h b/include/asm-x86_64/string.h
index a3493ee282bb..ee6bf275349e 100644
--- a/include/asm-x86_64/string.h
+++ b/include/asm-x86_64/string.h
@@ -40,26 +40,15 @@ extern void *__memcpy(void *to, const void *from, size_t len);
#define __HAVE_ARCH_MEMSET
-#define memset __builtin_memset
+void *memset(void *s, int c, size_t n);
#define __HAVE_ARCH_MEMMOVE
void * memmove(void * dest,const void *src,size_t count);
-/* Use C out of line version for memcmp */
-#define memcmp __builtin_memcmp
int memcmp(const void * cs,const void * ct,size_t count);
-
-/* out of line string functions use always C versions */
-#define strlen __builtin_strlen
size_t strlen(const char * s);
-
-#define strcpy __builtin_strcpy
-char * strcpy(char * dest,const char *src);
-
-#define strcat __builtin_strcat
-char * strcat(char * dest, const char * src);
-
-#define strcmp __builtin_strcmp
+char *strcpy(char * dest,const char *src);
+char *strcat(char * dest, const char * src);
int strcmp(const char * cs,const char * ct);
#endif /* __KERNEL__ */