Release 4.14 arch/s390/include/asm/string.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 *  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_MEMMOVE	
/* 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 void *memmove(void *, const void *, 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_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", "memory");
	return (void *) ret;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Andrew Morton
30
58.82%
1
25.00%
Linus Torvalds (pre-git)
19
37.25%
1
25.00%
Linus Torvalds
1
1.96%
1
25.00%
Heiko Carstens
1
1.96%
1
25.00%
Total
51
100.00%
4
100.00%



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", "memory");
	return (void *) ret;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Andrew Morton
49
98.00%
1
50.00%
Heiko Carstens
1
2.00%
1
50.00%
Total
50
100.00%
2
100.00%



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;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Andrew Morton
40
93.02%
1
33.33%
Linus Torvalds (pre-git)
2
4.65%
1
33.33%
Martin Schwidefsky
1
2.33%
1
33.33%
Total
43
100.00%
3
100.00%



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;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds (pre-git)
20
51.28%
1
25.00%
Andrew Morton
17
43.59%
1
25.00%
Martin Schwidefsky
1
2.56%
1
25.00%
Linus Torvalds
1
2.56%
1
25.00%
Total
39
100.00%
4
100.00%



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", "memory");
	return r0 - (unsigned long) s;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Andrew Morton
27
64.29%
1
25.00%
Linus Torvalds (pre-git)
13
30.95%
1
25.00%
Linus Torvalds
1
2.38%
1
25.00%
Heiko Carstens
1
2.38%
1
25.00%
Total
42
100.00%
4
100.00%



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", "memory");
	return end - s;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Andrew Morton
33
67.35%
1
25.00%
Linus Torvalds (pre-git)
14
28.57%
1
25.00%
Heiko Carstens
1
2.04%
1
25.00%
Linus Torvalds
1
2.04%
1
25.00%
Total
49
100.00%
4
100.00%

#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_ */
Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
Andrew Morton
340
54.14%
1
11.11%
Linus Torvalds (pre-git)
119
18.95%
1
11.11%
Rusty Russell
83
13.22%
1
11.11%
Linus Torvalds
59
9.39%
1
11.11%
Heiko Carstens
24
3.82%
3
33.33%
Martin Schwidefsky
2
0.32%
1
11.11%
Greg Kroah-Hartman
1
0.16%
1
11.11%
Total
628
100.00%
9
100.00%
Directory: arch/s390/include/asm

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