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software/libbase: fix memcpy handling of buffers with differing alignments

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This commit is contained in:
Sebastien Bourdeauducq 2012-05-27 15:45:45 +02:00
parent 4dbc938f7c
commit 48b70f09a8
1 changed files with 8 additions and 1 deletions
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9
software/libbase/libc.c
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@ -265,6 +265,13 @@ void *memcpy(void *to, const void *from, size_t n)
from = cfrom; from = cfrom;
n--; n--;
} }
if((long)from & 1) {
char *cto = to;
const char *cfrom = from;
for (; n; n--)
*cto++ = *cfrom++;
return xto;
}
if(n > 2 && (long)to & 2) { if(n > 2 && (long)to & 2) {
short *sto = to; short *sto = to;
const short *sfrom = from; const short *sfrom = from;
@ -278,7 +285,7 @@ void *memcpy(void *to, const void *from, size_t n)
long *lto = to; long *lto = to;
const long *lfrom = from; const long *lfrom = from;
for(; temp; temp--) for(; temp; temp--)
*lto++ = *lfrom++; *lto++ = *lfrom++;
to = lto; to = lto;
from = lfrom; from = lfrom;
} }