X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Fmalloc%2Fmemalign.c;h=32cd87d812f7f4228d1f85932f7a7dbb75777de7;hb=3b7b4155570b4b9054465785be2992c92cb7d7b1;hp=e06c76ed04126848b40a3bdeadbf3303585efd48;hpb=d1e6fdd3674eff0e09554c7ddc431acb8925232f;p=musl

diff --git a/src/malloc/memalign.c b/src/malloc/memalign.c
index e06c76ed..32cd87d8 100644
--- a/src/malloc/memalign.c
+++ b/src/malloc/memalign.c
@@ -1,52 +1,7 @@
+#define _BSD_SOURCE
 #include <stdlib.h>
-#include <stdint.h>
-#include <errno.h>
-#include "malloc_impl.h"
 
-void *aligned_alloc(size_t align, size_t len)
+void *memalign(size_t align, size_t len)
 {
-	unsigned char *mem, *new;
-
-	if ((align & -align) != align) {
-		errno = EINVAL;
-		return 0;
-	}
-
-	if (len > SIZE_MAX - align || __malloc_replaced) {
-		errno = ENOMEM;
-		return 0;
-	}
-
-	if (align <= SIZE_ALIGN)
-		return malloc(len);
-
-	if (!(mem = malloc(len + align-1)))
-		return 0;
-
-	new = (void *)((uintptr_t)mem + align-1 & -align);
-	if (new == mem) return mem;
-
-	struct chunk *c = MEM_TO_CHUNK(mem);
-	struct chunk *n = MEM_TO_CHUNK(new);
-
-	if (IS_MMAPPED(c)) {
-		/* Apply difference between aligned and original
-		 * address to the "extra" field of mmapped chunk. */
-		n->psize = c->psize + (new-mem);
-		n->csize = c->csize - (new-mem);
-		return new;
-	}
-
-	struct chunk *t = NEXT_CHUNK(c);
-
-	/* Split the allocated chunk into two chunks. The aligned part
-	 * that will be used has the size in its footer reduced by the
-	 * difference between the aligned and original addresses, and
-	 * the resulting size copied to its header. A new header and
-	 * footer are written for the split-off part to be freed. */
-	n->psize = c->csize = C_INUSE | (new-mem);
-	n->csize = t->psize -= new-mem;
-
-	__bin_chunk(c);
-	return new;
+	return aligned_alloc(align, len);
 }