Release 4.18 arch/xtensa/include/asm/string.h
/*
* include/asm-xtensa/string.h
*
* These trivial string functions are considered part of the public domain.
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 2001 - 2005 Tensilica Inc.
*/
/* We should optimize these. See arch/xtensa/lib/strncpy_user.S */
#ifndef _XTENSA_STRING_H
#define _XTENSA_STRING_H
#define __HAVE_ARCH_STRCPY
static inline char *strcpy(char *__dest, const char *__src)
{
register char *__xdest = __dest;
unsigned long __dummy;
__asm__ __volatile__("1:\n\t"
"l8ui %2, %1, 0\n\t"
"s8i %2, %0, 0\n\t"
"addi %1, %1, 1\n\t"
"addi %0, %0, 1\n\t"
"bnez %2, 1b\n\t"
: "=r" (__dest), "=r" (__src), "=&r" (__dummy)
: "0" (__dest), "1" (__src)
: "memory");
return __xdest;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Chris Zankel | 32 | 94.12% | 1 | 50.00% |
| Adrian Bunk | 2 | 5.88% | 1 | 50.00% |
| Total | 34 | 100.00% | 2 | 100.00% |
#define __HAVE_ARCH_STRNCPY
static inline char *strncpy(char *__dest, const char *__src, size_t __n)
{
register char *__xdest = __dest;
unsigned long __dummy;
if (__n == 0)
return __xdest;
__asm__ __volatile__(
"1:\n\t"
"l8ui %2, %1, 0\n\t"
"s8i %2, %0, 0\n\t"
"addi %1, %1, 1\n\t"
"addi %0, %0, 1\n\t"
"beqz %2, 2f\n\t"
"bne %1, %5, 1b\n"
"2:"
: "=r" (__dest), "=r" (__src), "=&r" (__dummy)
: "0" (__dest), "1" (__src), "r" ((uintptr_t)__src+__n)
: "memory");
return __xdest;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Chris Zankel | 43 | 93.48% | 1 | 33.33% |
| Adrian Bunk | 2 | 4.35% | 1 | 33.33% |
| Arnd Bergmann | 1 | 2.17% | 1 | 33.33% |
| Total | 46 | 100.00% | 3 | 100.00% |
#define __HAVE_ARCH_STRCMP
static inline int strcmp(const char *__cs, const char *__ct)
{
register int __res;
unsigned long __dummy;
__asm__ __volatile__(
"1:\n\t"
"l8ui %3, %1, 0\n\t"
"addi %1, %1, 1\n\t"
"l8ui %2, %0, 0\n\t"
"addi %0, %0, 1\n\t"
"beqz %2, 2f\n\t"
"beq %2, %3, 1b\n"
"2:\n\t"
"sub %2, %2, %3"
: "=r" (__cs), "=r" (__ct), "=&r" (__res), "=&r" (__dummy)
: "0" (__cs), "1" (__ct));
return __res;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Chris Zankel | 28 | 90.32% | 1 | 33.33% |
| Adrian Bunk | 2 | 6.45% | 1 | 33.33% |
| Max Filippov | 1 | 3.23% | 1 | 33.33% |
| Total | 31 | 100.00% | 3 | 100.00% |
#define __HAVE_ARCH_STRNCMP
static inline int strncmp(const char *__cs, const char *__ct, size_t __n)
{
register int __res;
unsigned long __dummy;
__asm__ __volatile__(
"mov %2, %3\n"
"1:\n\t"
"beq %0, %6, 2f\n\t"
"l8ui %3, %1, 0\n\t"
"addi %1, %1, 1\n\t"
"l8ui %2, %0, 0\n\t"
"addi %0, %0, 1\n\t"
"beqz %2, 2f\n\t"
"beqz %3, 2f\n\t"
"beq %2, %3, 1b\n"
"2:\n\t"
"sub %2, %2, %3"
: "=r" (__cs), "=r" (__ct), "=&r" (__res), "=&r" (__dummy)
: "0" (__cs), "1" (__ct), "r" ((uintptr_t)__cs+__n));
return __res;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Chris Zankel | 31 | 91.18% | 1 | 33.33% |
| Adrian Bunk | 2 | 5.88% | 1 | 33.33% |
| Arnd Bergmann | 1 | 2.94% | 1 | 33.33% |
| Total | 34 | 100.00% | 3 | 100.00% |
#define __HAVE_ARCH_MEMSET
extern void *memset(void *__s, int __c, size_t __count);
extern void *__memset(void *__s, int __c, size_t __count);
#define __HAVE_ARCH_MEMCPY
extern void *memcpy(void *__to, __const__ void *__from, size_t __n);
extern void *__memcpy(void *__to, __const__ void *__from, size_t __n);
#define __HAVE_ARCH_MEMMOVE
extern void *memmove(void *__dest, __const__ void *__src, size_t __n);
extern void *__memmove(void *__dest, __const__ void *__src, size_t __n);
/* Don't build bcopy at all ... */
#define __HAVE_ARCH_BCOPY
#if defined(CONFIG_KASAN) && !defined(__SANITIZE_ADDRESS__)
/*
* For files that are not instrumented (e.g. mm/slub.c) we
* should use not instrumented version of mem* functions.
*/
#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 /* _XTENSA_STRING_H */
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Chris Zankel | 222 | 64.91% | 1 | 20.00% |
| Max Filippov | 110 | 32.16% | 2 | 40.00% |
| Adrian Bunk | 8 | 2.34% | 1 | 20.00% |
| Arnd Bergmann | 2 | 0.58% | 1 | 20.00% |
| Total | 342 | 100.00% | 5 | 100.00% |
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.