LXR linux/arch/mips/boot/compressed/string.c

   1// SPDX-License-Identifier: GPL-2.0
   2/*
   3 * arch/mips/boot/compressed/string.c
   4 *
   5 * Very small subset of simple string routines
   6 */
   7
   8#include <linux/compiler_attributes.h>
   9#include <linux/types.h>
  10
  11void *memcpy(void *dest, const void *src, size_t n)
  12{
  13        int i;
  14        const char *s = src;
  15        char *d = dest;
  16
  17        for (i = 0; i < n; i++)
  18                d[i] = s[i];
  19        return dest;
  20}
  21
  22void *memset(void *s, int c, size_t n)
  23{
  24        int i;
  25        char *ss = s;
  26
  27        for (i = 0; i < n; i++)
  28                ss[i] = c;
  29        return s;
  30}
  31
  32void * __weak memmove(void *dest, const void *src, size_t n)
  33{
  34        unsigned int i;
  35        const char *s = src;
  36        char *d = dest;
  37
  38        if ((uintptr_t)dest < (uintptr_t)src) {
  39                for (i = 0; i < n; i++)
  40                        d[i] = s[i];
  41        } else {
  42                for (i = n; i > 0; i--)
  43                        d[i - 1] = s[i - 1];
  44        }
  45        return dest;
  46}
  47