Fix malloc alignment

In commit 3e0a1f388, Richard tried to fix malloc alignments by using
 alignof (double __attribute_aligned__(sizeof (size_t))).
This doesn't work, since attribute_aligned overrides the alignment
rather than providing a minimum. On C6X, malloc returns four-byte
aligned values rather than the necessary eight-byte alignment.

It's simpler to use a comparison and pick the bigger of the two values,
so that's what I've done.

Signed-off-by: Bernd Schmidt <bernds@codesourcery.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/libc/stdlib/malloc/malloc.h b/libc/stdlib/malloc/malloc.h
index 0a4b43b86..25f7409bf 100644
--- a/libc/stdlib/malloc/malloc.h
+++ b/libc/stdlib/malloc/malloc.h
@@ -17,7 +17,7 @@
    alignment can be a significant win on targets like m68k and Coldfire,
    where __alignof__(double) == 2.  */
 #define MALLOC_ALIGNMENT \
-  __alignof__ (double __attribute_aligned__ (sizeof (size_t)))
+  (__alignof__ (double) > sizeof (size_t) ? __alignof__ (double) : sizeof (size_t))
 
 /* The system pagesize... */
 extern size_t __pagesize;