summaryrefslogtreecommitdiff
path: root/arch/nds32/include/asm/string.h
diff options
context:
space:
mode:
Diffstat (limited to 'arch/nds32/include/asm/string.h')
-rw-r--r--arch/nds32/include/asm/string.h57
1 files changed, 57 insertions, 0 deletions
diff --git a/arch/nds32/include/asm/string.h b/arch/nds32/include/asm/string.h
new file mode 100644
index 0000000..610aa9e
--- /dev/null
+++ b/arch/nds32/include/asm/string.h
@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2011 Andes Technology Corporation
+ * Copyright (C) 2010 Shawn Lin (nobuhiro@andestech.com)
+ * Copyright (C) 2011 Macpaul Lin (macpaul@andestech.com)
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef __ASM_NDS_STRING_H
+#define __ASM_NDS_STRING_H
+
+/*
+ * We don't do inline string functions, since the
+ * optimised inline asm versions are not small.
+ */
+
+#undef __HAVE_ARCH_STRRCHR
+extern char *strrchr(const char *s, int c);
+
+#undef __HAVE_ARCH_STRCHR
+extern char *strchr(const char *s, int c);
+
+#undef __HAVE_ARCH_MEMCPY
+extern void *memcpy(void *, const void *, __kernel_size_t);
+
+#undef __HAVE_ARCH_MEMMOVE
+extern void *memmove(void *, const void *, __kernel_size_t);
+
+#undef __HAVE_ARCH_MEMCHR
+extern void *memchr(const void *, int, __kernel_size_t);
+
+#undef __HAVE_ARCH_MEMZERO
+#undef __HAVE_ARCH_MEMSET
+extern void *memset(void *, int, __kernel_size_t);
+
+#ifdef CONFIG_MARCO_MEMSET
+extern void __memzero(void *ptr, __kernel_size_t n);
+
+#define memset(p, v, n) \
+ ({ \
+ if ((n) != 0) { \
+ if (__builtin_constant_p((v)) && (v) == 0) \
+ __memzero((p), (n)); \
+ else \
+ memset((p), (v), (n)); \
+ } \
+ (p); \
+ })
+
+#define memzero(p, n) ({ if ((n) != 0) __memzero((p), (n)); (p); })
+#else
+extern void memzero(void *ptr, __kernel_size_t n);
+#endif
+
+#endif /* __ASM_NDS_STRING_H */