diff options
Diffstat (limited to 'tools/include/nolibc/string.h')
| -rw-r--r-- | tools/include/nolibc/string.h | 36 |
1 files changed, 13 insertions, 23 deletions
diff --git a/tools/include/nolibc/string.h b/tools/include/nolibc/string.h index 0c2e06c7c477..a01c69dd495f 100644 --- a/tools/include/nolibc/string.h +++ b/tools/include/nolibc/string.h @@ -27,28 +27,7 @@ int memcmp(const void *s1, const void *s2, size_t n) return c1; } -static __attribute__((unused)) -void *_nolibc_memcpy_up(void *dst, const void *src, size_t len) -{ - size_t pos = 0; - - while (pos < len) { - ((char *)dst)[pos] = ((const char *)src)[pos]; - pos++; - } - return dst; -} - -static __attribute__((unused)) -void *_nolibc_memcpy_down(void *dst, const void *src, size_t len) -{ - while (len) { - len--; - ((char *)dst)[len] = ((const char *)src)[len]; - } - return dst; -} - +#ifndef NOLIBC_ARCH_HAS_MEMMOVE /* might be ignored by the compiler without -ffreestanding, then found as * missing. */ @@ -72,14 +51,24 @@ void *memmove(void *dst, const void *src, size_t len) } return dst; } +#endif /* #ifndef NOLIBC_ARCH_HAS_MEMMOVE */ +#ifndef NOLIBC_ARCH_HAS_MEMCPY /* must be exported, as it's used by libgcc on ARM */ __attribute__((weak,unused,section(".text.nolibc_memcpy"))) void *memcpy(void *dst, const void *src, size_t len) { - return _nolibc_memcpy_up(dst, src, len); + size_t pos = 0; + + while (pos < len) { + ((char *)dst)[pos] = ((const char *)src)[pos]; + pos++; + } + return dst; } +#endif /* #ifndef NOLIBC_ARCH_HAS_MEMCPY */ +#ifndef NOLIBC_ARCH_HAS_MEMSET /* might be ignored by the compiler without -ffreestanding, then found as * missing. */ @@ -95,6 +84,7 @@ void *memset(void *dst, int b, size_t len) } return dst; } +#endif /* #ifndef NOLIBC_ARCH_HAS_MEMSET */ static __attribute__((unused)) char *strchr(const char *s, int c) |