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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195/* 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_MEMCPY /* gcc builtin & arch function */#define __HAVE_ARCH_MEMMOVE /* gcc builtin & arch function */#define __HAVE_ARCH_MEMSET /* gcc builtin & arch function */
void *memcpy(void *dest, const void *src, size_t n);void *memset(void *s, int c, size_t n);void *memmove(void *dest, const void *src, size_t n);
#if !defined(CONFIG_KASAN) && !defined(CONFIG_KMSAN)#define __HAVE_ARCH_MEMCHR /* inline & arch function */#define __HAVE_ARCH_MEMCMP /* arch function */#define __HAVE_ARCH_MEMSCAN /* inline & arch function */#define __HAVE_ARCH_STRCAT /* inline & arch function */#define __HAVE_ARCH_STRCMP /* arch function */#define __HAVE_ARCH_STRLEN /* inline & arch function */#define __HAVE_ARCH_STRNCAT /* arch function */#define __HAVE_ARCH_STRNLEN /* inline & arch function */#define __HAVE_ARCH_STRSTR /* arch function */#define __HAVE_ARCH_MEMSET16 /* arch function */#define __HAVE_ARCH_MEMSET32 /* arch function */#define __HAVE_ARCH_MEMSET64 /* arch function */
/* Prototypes for non-inlined arch strings functions. */int memcmp(const void *s1, const void *s2, size_t n);int strcmp(const char *s1, const char *s2);char *strncat(char *dest, const char *src, size_t n);char *strstr(const char *s1, const char *s2);#endif /* !defined(CONFIG_KASAN) && !defined(CONFIG_KMSAN) */
#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(CONFIG_KASAN) && !defined(__SANITIZE_ADDRESS__)
#define strlen(s) __strlen(s)
#define __no_sanitize_prefix_strfunc(x) __##x
#ifndef __NO_FORTIFY#define __NO_FORTIFY /* FORTIFY_SOURCE uses __builtin_memcpy, etc. */#endif
#else#define __no_sanitize_prefix_strfunc(x) x#endif /* defined(CONFIG_KASAN) && !defined(__SANITIZE_ADDRESS__) */
void *__memcpy(void *dest, const void *src, size_t n);void *__memset(void *s, int c, size_t n);void *__memmove(void *dest, const void *src, size_t n);void *__memset16(uint16_t *s, uint16_t v, size_t count);void *__memset32(uint32_t *s, uint32_t v, size_t count);void *__memset64(uint64_t *s, uint64_t v, size_t count);
#ifdef __HAVE_ARCH_MEMSET16static inline void *memset16(uint16_t *s, uint16_t v, size_t count){ return __memset16(s, v, count * sizeof(v));}#endif
#ifdef __HAVE_ARCH_MEMSET32static inline void *memset32(uint32_t *s, uint32_t v, size_t count){ return __memset32(s, v, count * sizeof(v));}#endif
#ifdef __HAVE_ARCH_MEMSET64#ifdef IN_BOOT_STRING_Cvoid *memset64(uint64_t *s, uint64_t v, size_t count);#elsestatic inline void *memset64(uint64_t *s, uint64_t v, size_t count){ return __memset64(s, v, count * sizeof(v));}#endif#endif
#if !defined(IN_ARCH_STRING_C) && (!defined(CONFIG_FORTIFY_SOURCE) || defined(__NO_FORTIFY))
#ifdef __HAVE_ARCH_MEMCHRstatic inline void *memchr(const void * s, int c, size_t n){ const void *ret = s + n;
asm volatile( " lgr 0,%[c]\n" "0: srst %[ret],%[s]\n" " jo 0b\n" " jl 1f\n" " la %[ret],0\n" "1:" : [ret] "+&a" (ret), [s] "+&a" (s) : [c] "d" (c) : "cc", "memory", "0"); return (void *) ret;}#endif
#ifdef __HAVE_ARCH_MEMSCANstatic inline void *memscan(void *s, int c, size_t n){ const void *ret = s + n;
asm volatile( " lgr 0,%[c]\n" "0: srst %[ret],%[s]\n" " jo 0b" : [ret] "+&a" (ret), [s] "+&a" (s) : [c] "d" (c) : "cc", "memory", "0"); return (void *) ret;}#endif
#ifdef __HAVE_ARCH_STRCATstatic inline char *strcat(char *dst, const char *src){ unsigned long dummy = 0; char *ret = dst;
asm volatile( " lghi 0,0\n" "0: srst %[dummy],%[dst]\n" " jo 0b\n" "1: mvst %[dummy],%[src]\n" " jo 1b" : [dummy] "+&a" (dummy), [dst] "+&a" (dst), [src] "+&a" (src) : : "cc", "memory", "0"); return ret;}#endif
#if defined(__HAVE_ARCH_STRLEN) || (defined(CONFIG_KASAN) && !defined(__SANITIZE_ADDRESS__))static inline size_t __no_sanitize_prefix_strfunc(strlen)(const char *s){ unsigned long end = 0; const char *tmp = s;
asm volatile( " lghi 0,0\n" "0: srst %[end],%[tmp]\n" " jo 0b" : [end] "+&a" (end), [tmp] "+&a" (tmp) : : "cc", "memory", "0"); return end - (unsigned long)s;}#endif
#ifdef __HAVE_ARCH_STRNLENstatic inline size_t strnlen(const char * s, size_t n){ const char *tmp = s; const char *end = s + n;
asm volatile( " lghi 0,0\n" "0: srst %[end],%[tmp]\n" " jo 0b" : [end] "+&a" (end), [tmp] "+&a" (tmp) : : "cc", "memory", "0"); return end - s;}#endif#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);size_t strlen(const char *s);size_t strnlen(const char * s, size_t n);#endif /* !IN_ARCH_STRING_C */
#endif /* __S390_STRING_H_ */