diff options
| author | Petar Jovanovic <petar.jovanovic@rt-rk.com> | 2019-05-06 13:29:02 +0000 |
|---|---|---|
| committer | Waldemar Brodkorb <wbx@openadk.org> | 2019-05-27 14:54:52 +0200 |
| commit | 785dee78552f9ad06819bf7eb1adc05b43110842 (patch) | |
| tree | 7df9f5859683ddb93c47350bd1b92cc0037b5614 /libc | |
| parent | c2eaf6c30d930b65a8bcf5f912ef8873a6f4eb20 (diff) | |
mips: fix memmove() call when __ARCH_HAS_BWD_MEMCPY__ is not defined
When arch (such as MIPS) does not define __ARCH_HAS_BWD_MEMCPY__, memmove()
calls memcpy() which is wrong for overlapping regions.
Signed-off-by: Petar Jovanovic <petar.jovanovic@rt-rk.com>
Diffstat (limited to 'libc')
| -rw-r--r-- | libc/string/generic/memmove.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/libc/string/generic/memmove.c b/libc/string/generic/memmove.c index bf78c4778..1ac018013 100644 --- a/libc/string/generic/memmove.c +++ b/libc/string/generic/memmove.c @@ -23,7 +23,7 @@ #include "memcopy.h" #include "pagecopy.h" -#ifdef __ARCH_HAS_BWD_MEMCPY__ +#ifndef __ARCH_HAS_BWD_MEMCPY__ /* generic-opt memmove assumes memcpy does forward copying! */ #include "_memcpy_fwd.c" #endif @@ -224,8 +224,8 @@ void *memmove (void *dest, const void *src, size_t len) Reduces the working set. */ if (dstp - srcp >= len) /* *Unsigned* compare! */ { -#ifndef __ARCH_HAS_BWD_MEMCPY__ - /* Backward memcpy implementation cannot be used */ +#ifdef __ARCH_HAS_BWD_MEMCPY__ + /* Backward memcpy implementation can be used */ memcpy(dest, src, len); #else /* Copy from the beginning to the end. */ |