https://github.com/torvalds/linux
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Tip revision: c13dcf9f2d6f5f06ef1bf79ec456df614c5e058b authored by Linus Torvalds on 24 August 2015, 03:52:59 UTC
Linux 4.2-rc8
Tip revision: c13dcf9
string.h
#ifndef BOOT_STRING_H
#define BOOT_STRING_H

/* Undef any of these macros coming from string_32.h. */
#undef memcpy
#undef memset
#undef memcmp

void *memcpy(void *dst, const void *src, size_t len);
void *memset(void *dst, int c, size_t len);
int memcmp(const void *s1, const void *s2, size_t len);

/*
 * Access builtin version by default. If one needs to use optimized version,
 * do "undef memcpy" in .c file and link against right string.c
 */
#define memcpy(d,s,l) __builtin_memcpy(d,s,l)
#define memset(d,c,l) __builtin_memset(d,c,l)
#define memcmp	__builtin_memcmp

#endif /* BOOT_STRING_H */
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