forked from rpms/glibc
87 lines
2.2 KiB
Diff
87 lines
2.2 KiB
Diff
commit 9a27b566b2048f599048f2f4afe1cce06c4ef43d
|
|
Author: Miguel Martín <mmartinv@redhat.com>
|
|
Date: Tue Jul 16 17:14:56 2024 +0200
|
|
|
|
malloc: avoid global locks in tst-aligned_alloc-lib.c
|
|
|
|
Make sure the DSO used by aligned_alloc/calloc/malloc tests does not get
|
|
a global lock on multithreaded tests.
|
|
Reviewed-by: Arjun Shankar <arjun@redhat.com>
|
|
|
|
diff --git a/malloc/tst-aligned_alloc-lib.c b/malloc/tst-aligned_alloc-lib.c
|
|
index 0205df5acf6297a5..9ef1f839c101a6ae 100644
|
|
--- a/malloc/tst-aligned_alloc-lib.c
|
|
+++ b/malloc/tst-aligned_alloc-lib.c
|
|
@@ -17,37 +17,38 @@
|
|
License along with the GNU C Library; see the file COPYING.LIB. If
|
|
not, see <https://www.gnu.org/licenses/>. */
|
|
|
|
-#include <array_length.h>
|
|
#include <libc-symbols.h>
|
|
#include <stdlib.h>
|
|
+#include <time.h>
|
|
|
|
extern void *__libc_malloc (size_t size);
|
|
extern void *__libc_calloc (size_t n, size_t size);
|
|
|
|
+__thread unsigned int seed = 0;
|
|
+
|
|
int aligned_alloc_count = 0;
|
|
int libc_malloc_count = 0;
|
|
int libc_calloc_count = 0;
|
|
|
|
-/* Get a random alignment value. Biased towards the smaller values. Must be
|
|
- a power of 2. */
|
|
-static size_t get_random_alignment (void)
|
|
-{
|
|
- size_t aligns[] = {
|
|
- 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384
|
|
- };
|
|
-
|
|
- return aligns[random () % array_length (aligns)];
|
|
-}
|
|
-
|
|
-static void *get_random_alloc (size_t size)
|
|
+static void *
|
|
+get_random_alloc (size_t size)
|
|
{
|
|
void *retval;
|
|
size_t align;
|
|
+ struct timespec tp;
|
|
+
|
|
+ if (seed == 0)
|
|
+ {
|
|
+ clock_gettime (CLOCK_REALTIME, &tp);
|
|
+ seed = tp.tv_nsec;
|
|
+ }
|
|
|
|
- switch (random() % 3)
|
|
- {
|
|
+ switch (rand_r (&seed) % 3)
|
|
+ {
|
|
case 1:
|
|
- align = get_random_alignment ();
|
|
+ /* Get a random alignment value. Biased towards the smaller
|
|
+ * values up to 16384. Must be a power of 2. */
|
|
+ align = 1 << rand_r (&seed) % 15;
|
|
retval = aligned_alloc (align, size);
|
|
aligned_alloc_count++;
|
|
break;
|
|
@@ -59,13 +60,13 @@ static void *get_random_alloc (size_t size)
|
|
retval = __libc_malloc (size);
|
|
libc_malloc_count++;
|
|
break;
|
|
- }
|
|
+ }
|
|
|
|
return retval;
|
|
}
|
|
|
|
-
|
|
-void * __random_malloc (size_t size)
|
|
+void *
|
|
+__random_malloc (size_t size)
|
|
{
|
|
return get_random_alloc (size);
|
|
}
|