Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / arch / s390 / include / asm / string.h

diff --git a/kernel/arch/s390/include/asm/string.h b/kernel/arch/s390/include/asm/string.h
new file mode 100644 (file)
index 0000000..8662f5c
--- /dev/null
+++ b/kernel/arch/s390/include/asm/string.h
@@ -0,0 +1,142 @@
+/*
+ *  S390 version
+ *    Copyright IBM Corp. 1999
+ *    Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com),
+ */
+
+#ifndef _S390_STRING_H_
+#define _S390_STRING_H_
+
+#ifndef _LINUX_TYPES_H
+#include <linux/types.h>
+#endif
+
+#define __HAVE_ARCH_MEMCHR     /* inline & arch function */
+#define __HAVE_ARCH_MEMCMP     /* arch function */
+#define __HAVE_ARCH_MEMCPY     /* gcc builtin & arch function */
+#define __HAVE_ARCH_MEMSCAN    /* inline & arch function */
+#define __HAVE_ARCH_MEMSET     /* gcc builtin & arch function */
+#define __HAVE_ARCH_STRCAT     /* inline & arch function */
+#define __HAVE_ARCH_STRCMP     /* arch function */
+#define __HAVE_ARCH_STRCPY     /* inline & arch function */
+#define __HAVE_ARCH_STRLCAT    /* arch function */
+#define __HAVE_ARCH_STRLCPY    /* arch function */
+#define __HAVE_ARCH_STRLEN     /* inline & arch function */
+#define __HAVE_ARCH_STRNCAT    /* arch function */
+#define __HAVE_ARCH_STRNCPY    /* arch function */
+#define __HAVE_ARCH_STRNLEN    /* inline & arch function */
+#define __HAVE_ARCH_STRRCHR    /* arch function */
+#define __HAVE_ARCH_STRSTR     /* arch function */
+
+/* Prototypes for non-inlined arch strings functions. */
+extern int memcmp(const void *, const void *, size_t);
+extern void *memcpy(void *, const void *, size_t);
+extern void *memset(void *, int, size_t);
+extern int strcmp(const char *,const char *);
+extern size_t strlcat(char *, const char *, size_t);
+extern size_t strlcpy(char *, const char *, size_t);
+extern char *strncat(char *, const char *, size_t);
+extern char *strncpy(char *, const char *, size_t);
+extern char *strrchr(const char *, int);
+extern char *strstr(const char *, const char *);
+
+#undef __HAVE_ARCH_MEMMOVE
+#undef __HAVE_ARCH_STRCHR
+#undef __HAVE_ARCH_STRNCHR
+#undef __HAVE_ARCH_STRNCMP
+#undef __HAVE_ARCH_STRPBRK
+#undef __HAVE_ARCH_STRSEP
+#undef __HAVE_ARCH_STRSPN
+
+#if !defined(IN_ARCH_STRING_C)
+
+static inline void *memchr(const void * s, int c, size_t n)
+{
+       register int r0 asm("0") = (char) c;
+       const void *ret = s + n;
+
+       asm volatile(
+               "0:     srst    %0,%1\n"
+               "       jo      0b\n"
+               "       jl      1f\n"
+               "       la      %0,0\n"
+               "1:"
+               : "+a" (ret), "+&a" (s) : "d" (r0) : "cc");
+       return (void *) ret;
+}
+
+static inline void *memscan(void *s, int c, size_t n)
+{
+       register int r0 asm("0") = (char) c;
+       const void *ret = s + n;
+
+       asm volatile(
+               "0:     srst    %0,%1\n"
+               "       jo      0b\n"
+               : "+a" (ret), "+&a" (s) : "d" (r0) : "cc");
+       return (void *) ret;
+}
+
+static inline char *strcat(char *dst, const char *src)
+{
+       register int r0 asm("0") = 0;
+       unsigned long dummy;
+       char *ret = dst;
+
+       asm volatile(
+               "0:     srst    %0,%1\n"
+               "       jo      0b\n"
+               "1:     mvst    %0,%2\n"
+               "       jo      1b"
+               : "=&a" (dummy), "+a" (dst), "+a" (src)
+               : "d" (r0), "0" (0) : "cc", "memory" );
+       return ret;
+}
+
+static inline char *strcpy(char *dst, const char *src)
+{
+       register int r0 asm("0") = 0;
+       char *ret = dst;
+
+       asm volatile(
+               "0:     mvst    %0,%1\n"
+               "       jo      0b"
+               : "+&a" (dst), "+&a" (src) : "d" (r0)
+               : "cc", "memory");
+       return ret;
+}
+
+static inline size_t strlen(const char *s)
+{
+       register unsigned long r0 asm("0") = 0;
+       const char *tmp = s;
+
+       asm volatile(
+               "0:     srst    %0,%1\n"
+               "       jo      0b"
+               : "+d" (r0), "+a" (tmp) :  : "cc");
+       return r0 - (unsigned long) s;
+}
+
+static inline size_t strnlen(const char * s, size_t n)
+{
+       register int r0 asm("0") = 0;
+       const char *tmp = s;
+       const char *end = s + n;
+
+       asm volatile(
+               "0:     srst    %0,%1\n"
+               "       jo      0b"
+               : "+a" (end), "+a" (tmp) : "d" (r0)  : "cc");
+       return end - s;
+}
+#else /* IN_ARCH_STRING_C */
+void *memchr(const void * s, int c, size_t n);
+void *memscan(void *s, int c, size_t n);
+char *strcat(char *dst, const char *src);
+char *strcpy(char *dst, const char *src);
+size_t strlen(const char *s);
+size_t strnlen(const char * s, size_t n);
+#endif /* !IN_ARCH_STRING_C */
+
+#endif /* __S390_STRING_H_ */