LXR linux/arch/x86/boot/string.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef BOOT_STRING_H
   3#define BOOT_STRING_H
   4
   5/* Undef any of these macros coming from string_32.h. */
   6#undef memcpy
   7#undef memset
   8#undef memcmp
   9
  10void *memcpy(void *dst, const void *src, size_t len);
  11void *memset(void *dst, int c, size_t len);
  12int memcmp(const void *s1, const void *s2, size_t len);
  13
  14/*
  15 * Access builtin version by default. If one needs to use optimized version,
  16 * do "undef memcpy" in .c file and link against right string.c
  17 */
  18#define memcpy(d,s,l) __builtin_memcpy(d,s,l)
  19#define memset(d,c,l) __builtin_memset(d,c,l)
  20#define memcmp  __builtin_memcmp
  21
  22extern int strcmp(const char *str1, const char *str2);
  23extern int strncmp(const char *cs, const char *ct, size_t count);
  24extern size_t strlen(const char *s);
  25extern char *strstr(const char *s1, const char *s2);
  26extern char *strchr(const char *s, int c);
  27extern size_t strnlen(const char *s, size_t maxlen);
  28extern unsigned int atou(const char *s);
  29extern unsigned long long simple_strtoull(const char *cp, char **endp,
  30                                          unsigned int base);
  31
  32#endif /* BOOT_STRING_H */
  33