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-rw-r--r--malloc/tst-obstack.c42
1 files changed, 26 insertions, 16 deletions
diff --git a/malloc/tst-obstack.c b/malloc/tst-obstack.c
index bd00a0ab7b..cd19431bb9 100644
--- a/malloc/tst-obstack.c
+++ b/malloc/tst-obstack.c
@@ -28,27 +28,37 @@ verbose_free (void *buf)
int
main (void)
{
- struct obstack obs;
- int i;
int result = 0;
+ int align = 2;
- obstack_init (&obs);
- obstack_alignment_mask (&obs) = ALIGN_MASK;
- /* finish an empty object to take alignment into account */
- obstack_finish (&obs);
-
- /* let's allocate some objects and print their addresses */
- for (i = 15; i > 0; --i)
+ while (align <= 64)
{
- void *obj = obstack_alloc (&obs, OBJECT_SIZE);
+ struct obstack obs;
+ int i;
+ int align_mask = align - 1;
+
+ printf ("\n Alignment mask: %d\n", align_mask);
+
+ obstack_init (&obs);
+ obstack_alignment_mask (&obs) = align_mask;
+ /* finish an empty object to take alignment into account */
+ obstack_finish (&obs);
+
+ /* let's allocate some objects and print their addresses */
+ for (i = 15; i > 0; --i)
+ {
+ void *obj = obstack_alloc (&obs, OBJECT_SIZE);
+
+ printf ("obstack_alloc (%u) => %p \t%s\n", OBJECT_SIZE, obj,
+ ((uintptr_t) obj & align_mask) ? "(not aligned)" : "");
+ result |= ((uintptr_t) obj & align_mask) != 0;
+ }
- printf ("obstack_alloc (%u) => %p \t%s\n", OBJECT_SIZE, obj,
- ((uintptr_t) obj & ALIGN_MASK) ? "(not aligned)" : "");
- result |= ((uintptr_t) obj & ALIGN_MASK) != 0;
- }
+ /* clean up */
+ obstack_free (&obs, 0);
- /* clean up */
- obstack_free (&obs, 0);
+ align <<= 1;
+ }
return result;
}