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authorPaul Mundt <lethal@linux-sh.org>2007-11-09 13:00:30 +0900
committerPaul Mundt <lethal@linux-sh.org>2008-01-28 13:18:40 +0900
commit7960a1d02b00fd5dfa5c2d9b957e4e5f6ec23997 (patch)
treec5128f16f8b2d34f5ea62b4225063165f8c27f8a /include/asm-sh/string_32.h
parentda06b8d0545a1bf95b9060bf301d6de3400fafd6 (diff)
downloadop-kernel-dev-7960a1d02b00fd5dfa5c2d9b957e4e5f6ec23997.zip
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sh: Split out asm/string.h for sh32 and sh64.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'include/asm-sh/string_32.h')
-rw-r--r--include/asm-sh/string_32.h131
1 files changed, 131 insertions, 0 deletions
diff --git a/include/asm-sh/string_32.h b/include/asm-sh/string_32.h
new file mode 100644
index 0000000..55f8db6
--- /dev/null
+++ b/include/asm-sh/string_32.h
@@ -0,0 +1,131 @@
+#ifndef __ASM_SH_STRING_H
+#define __ASM_SH_STRING_H
+
+#ifdef __KERNEL__
+
+/*
+ * Copyright (C) 1999 Niibe Yutaka
+ * But consider these trivial functions to be public domain.
+ */
+
+#define __HAVE_ARCH_STRCPY
+static inline char *strcpy(char *__dest, const char *__src)
+{
+ register char *__xdest = __dest;
+ unsigned long __dummy;
+
+ __asm__ __volatile__("1:\n\t"
+ "mov.b @%1+, %2\n\t"
+ "mov.b %2, @%0\n\t"
+ "cmp/eq #0, %2\n\t"
+ "bf/s 1b\n\t"
+ " add #1, %0\n\t"
+ : "=r" (__dest), "=r" (__src), "=&z" (__dummy)
+ : "0" (__dest), "1" (__src)
+ : "memory", "t");
+
+ return __xdest;
+}
+
+#define __HAVE_ARCH_STRNCPY
+static inline char *strncpy(char *__dest, const char *__src, size_t __n)
+{
+ register char *__xdest = __dest;
+ unsigned long __dummy;
+
+ if (__n == 0)
+ return __xdest;
+
+ __asm__ __volatile__(
+ "1:\n"
+ "mov.b @%1+, %2\n\t"
+ "mov.b %2, @%0\n\t"
+ "cmp/eq #0, %2\n\t"
+ "bt/s 2f\n\t"
+ " cmp/eq %5,%1\n\t"
+ "bf/s 1b\n\t"
+ " add #1, %0\n"
+ "2:"
+ : "=r" (__dest), "=r" (__src), "=&z" (__dummy)
+ : "0" (__dest), "1" (__src), "r" (__src+__n)
+ : "memory", "t");
+
+ return __xdest;
+}
+
+#define __HAVE_ARCH_STRCMP
+static inline int strcmp(const char *__cs, const char *__ct)
+{
+ register int __res;
+ unsigned long __dummy;
+
+ __asm__ __volatile__(
+ "mov.b @%1+, %3\n"
+ "1:\n\t"
+ "mov.b @%0+, %2\n\t"
+ "cmp/eq #0, %3\n\t"
+ "bt 2f\n\t"
+ "cmp/eq %2, %3\n\t"
+ "bt/s 1b\n\t"
+ " mov.b @%1+, %3\n\t"
+ "add #-2, %1\n\t"
+ "mov.b @%1, %3\n\t"
+ "sub %3, %2\n"
+ "2:"
+ : "=r" (__cs), "=r" (__ct), "=&r" (__res), "=&z" (__dummy)
+ : "0" (__cs), "1" (__ct)
+ : "t");
+
+ return __res;
+}
+
+#define __HAVE_ARCH_STRNCMP
+static inline int strncmp(const char *__cs, const char *__ct, size_t __n)
+{
+ register int __res;
+ unsigned long __dummy;
+
+ if (__n == 0)
+ return 0;
+
+ __asm__ __volatile__(
+ "mov.b @%1+, %3\n"
+ "1:\n\t"
+ "mov.b @%0+, %2\n\t"
+ "cmp/eq %6, %0\n\t"
+ "bt/s 2f\n\t"
+ " cmp/eq #0, %3\n\t"
+ "bt/s 3f\n\t"
+ " cmp/eq %3, %2\n\t"
+ "bt/s 1b\n\t"
+ " mov.b @%1+, %3\n\t"
+ "add #-2, %1\n\t"
+ "mov.b @%1, %3\n"
+ "2:\n\t"
+ "sub %3, %2\n"
+ "3:"
+ :"=r" (__cs), "=r" (__ct), "=&r" (__res), "=&z" (__dummy)
+ : "0" (__cs), "1" (__ct), "r" (__cs+__n)
+ : "t");
+
+ return __res;
+}
+
+#define __HAVE_ARCH_MEMSET
+extern void *memset(void *__s, int __c, size_t __count);
+
+#define __HAVE_ARCH_MEMCPY
+extern void *memcpy(void *__to, __const__ void *__from, size_t __n);
+
+#define __HAVE_ARCH_MEMMOVE
+extern void *memmove(void *__dest, __const__ void *__src, size_t __n);
+
+#define __HAVE_ARCH_MEMCHR
+extern void *memchr(const void *__s, int __c, size_t __n);
+
+#define __HAVE_ARCH_STRLEN
+extern size_t strlen(const char *);
+
+#endif /* __KERNEL__ */
+
+#endif /* __ASM_SH_STRING_H */
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