Contributors: 5
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Linus Torvalds (pre-git) |
121 |
37.46% |
8 |
66.67% |
| Linus Walleij |
102 |
31.58% |
1 |
8.33% |
| Matthew Wilcox |
91 |
28.17% |
1 |
8.33% |
| Nico Pitre |
8 |
2.48% |
1 |
8.33% |
| Greg Kroah-Hartman |
1 |
0.31% |
1 |
8.33% |
| Total |
323 |
|
12 |
|
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __ASM_ARM_STRING_H
#define __ASM_ARM_STRING_H
/*
* We don't do inline string functions, since the
* optimised inline asm versions are not small.
*
* The __underscore versions of some functions are for KASan to be able
* to replace them with instrumented versions.
*/
#define __HAVE_ARCH_STRRCHR
extern char * strrchr(const char * s, int c);
#define __HAVE_ARCH_STRCHR
extern char * strchr(const char * s, int c);
#define __HAVE_ARCH_MEMCPY
extern void * memcpy(void *, const void *, __kernel_size_t);
extern void *__memcpy(void *dest, const void *src, __kernel_size_t n);
#define __HAVE_ARCH_MEMMOVE
extern void * memmove(void *, const void *, __kernel_size_t);
extern void *__memmove(void *dest, const void *src, __kernel_size_t n);
#define __HAVE_ARCH_MEMCHR
extern void * memchr(const void *, int, __kernel_size_t);
#define __HAVE_ARCH_MEMSET
extern void * memset(void *, int, __kernel_size_t);
extern void *__memset(void *s, int c, __kernel_size_t n);
#define __HAVE_ARCH_MEMSET32
extern void *__memset32(uint32_t *, uint32_t v, __kernel_size_t);
static inline void *memset32(uint32_t *p, uint32_t v, __kernel_size_t n)
{
return __memset32(p, v, n * 4);
}
#define __HAVE_ARCH_MEMSET64
extern void *__memset64(uint64_t *, uint32_t low, __kernel_size_t, uint32_t hi);
static inline void *memset64(uint64_t *p, uint64_t v, __kernel_size_t n)
{
return __memset64(p, v, n * 8, v >> 32);
}
/*
* For files that are not instrumented (e.g. mm/slub.c) we
* must use non-instrumented versions of the mem*
* functions named __memcpy() etc. All such kernel code has
* been tagged with KASAN_SANITIZE_file.o = n, which means
* that the address sanitization argument isn't passed to the
* compiler, and __SANITIZE_ADDRESS__ is not set. As a result
* these defines kick in.
*/
#if defined(CONFIG_KASAN) && !defined(__SANITIZE_ADDRESS__)
#define memcpy(dst, src, len) __memcpy(dst, src, len)
#define memmove(dst, src, len) __memmove(dst, src, len)
#define memset(s, c, n) __memset(s, c, n)
#ifndef __NO_FORTIFY
#define __NO_FORTIFY /* FORTIFY_SOURCE uses __builtin_memcpy, etc. */
#endif
#endif
#endif