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authorIngo Molnar <mingo@elte.hu>2008-09-04 13:02:35 +0200
committerIngo Molnar <mingo@elte.hu>2008-09-04 13:02:35 +0200
commit42390cdec5f6e6e2ee54f308474a6ef7dd16aa5c (patch)
treee9684c84f53272319a5acd4b9c86503f30274a51 /arch/alpha/include/asm/string.h
parent11c231a962c740b3216eb6565149ae5a7944cba7 (diff)
parentd210baf53b699fc61aa891c177b71d7082d3b957 (diff)
Merge branch 'linus' into x86/x2apic
Conflicts: arch/x86/kernel/cpu/cyrix.c include/asm-x86/cpufeature.h Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/alpha/include/asm/string.h')
-rw-r--r--arch/alpha/include/asm/string.h66
1 files changed, 66 insertions, 0 deletions
diff --git a/arch/alpha/include/asm/string.h b/arch/alpha/include/asm/string.h
new file mode 100644
index 000000000000..b02b8a282940
--- /dev/null
+++ b/arch/alpha/include/asm/string.h
@@ -0,0 +1,66 @@
+#ifndef __ALPHA_STRING_H__
+#define __ALPHA_STRING_H__
+
+#ifdef __KERNEL__
+
+/*
+ * GCC of any recent vintage doesn't do stupid things with bcopy.
+ * EGCS 1.1 knows all about expanding memcpy inline, others don't.
+ *
+ * Similarly for a memset with data = 0.
+ */
+
+#define __HAVE_ARCH_MEMCPY
+extern void * memcpy(void *, const void *, size_t);
+#define __HAVE_ARCH_MEMMOVE
+extern void * memmove(void *, const void *, size_t);
+
+/* For backward compatibility with modules. Unused otherwise. */
+extern void * __memcpy(void *, const void *, size_t);
+
+#define memcpy __builtin_memcpy
+
+#define __HAVE_ARCH_MEMSET
+extern void * __constant_c_memset(void *, unsigned long, size_t);
+extern void * __memset(void *, int, size_t);
+extern void * memset(void *, int, size_t);
+
+#define memset(s, c, n) \
+(__builtin_constant_p(c) \
+ ? (__builtin_constant_p(n) && (c) == 0 \
+ ? __builtin_memset((s),0,(n)) \
+ : __constant_c_memset((s),0x0101010101010101UL*(unsigned char)(c),(n))) \
+ : __memset((s),(c),(n)))
+
+#define __HAVE_ARCH_STRCPY
+extern char * strcpy(char *,const char *);
+#define __HAVE_ARCH_STRNCPY
+extern char * strncpy(char *, const char *, size_t);
+#define __HAVE_ARCH_STRCAT
+extern char * strcat(char *, const char *);
+#define __HAVE_ARCH_STRNCAT
+extern char * strncat(char *, const char *, size_t);
+#define __HAVE_ARCH_STRCHR
+extern char * strchr(const char *,int);
+#define __HAVE_ARCH_STRRCHR
+extern char * strrchr(const char *,int);
+#define __HAVE_ARCH_STRLEN
+extern size_t strlen(const char *);
+#define __HAVE_ARCH_MEMCHR
+extern void * memchr(const void *, int, size_t);
+
+/* The following routine is like memset except that it writes 16-bit
+ aligned values. The DEST and COUNT parameters must be even for
+ correct operation. */
+
+#define __HAVE_ARCH_MEMSETW
+extern void * __memsetw(void *dest, unsigned short, size_t count);
+
+#define memsetw(s, c, n) \
+(__builtin_constant_p(c) \
+ ? __constant_c_memset((s),0x0001000100010001UL*(unsigned short)(c),(n)) \
+ : __memsetw((s),(c),(n)))
+
+#endif /* __KERNEL__ */
+
+#endif /* __ALPHA_STRING_H__ */