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-rw-r--r--nptl/tst-tls3-malloc.c156
1 files changed, 3 insertions, 153 deletions
diff --git a/nptl/tst-tls3-malloc.c b/nptl/tst-tls3-malloc.c
index 8a580fa789..719ab28cf0 100644
--- a/nptl/tst-tls3-malloc.c
+++ b/nptl/tst-tls3-malloc.c
@@ -17,6 +17,7 @@
    <http://www.gnu.org/licenses/>.  */
 
 /* Reuse the test.  */
+#define STACK_SIZE_MB 5
 #include "tst-tls3.c"
 
 /* Increase the thread stack size to 10 MiB, so that some thread
@@ -26,156 +27,5 @@ static long stack_size_in_mb = 10;
 
 #include <sys/mman.h>
 
-/* Interpose a minimal malloc implementation.  This implementation
-   deliberately interposes just a restricted set of symbols, to detect
-   if the TLS code bypasses the interposed malloc.  */
-
-/* Lock to guard malloc internals.  */
-static pthread_mutex_t malloc_lock = PTHREAD_MUTEX_INITIALIZER;
-
-/* Information about an allocation chunk.  */
-struct malloc_chunk
-{
-  /* Start of the allocation.  */
-  void *start;
-  /* Size of the allocation.  */
-  size_t size;
-};
-
-enum { malloc_chunk_count = 1000 };
-static struct malloc_chunk chunks[malloc_chunk_count];
-
-/* Lock the malloc lock.  */
-static void
-xlock (void)
-{
-  int ret = pthread_mutex_lock (&malloc_lock);
-  if (ret != 0)
-    {
-      errno = ret;
-      printf ("error: pthread_mutex_lock: %m\n");
-      _exit (1);
-    }
-}
-
-/* Unlock the malloc lock.  */
-static void
-xunlock (void)
-{
-  int ret = pthread_mutex_unlock (&malloc_lock);
-  if (ret != 0)
-    {
-      errno = ret;
-      printf ("error: pthread_mutex_unlock: %m\n");
-      _exit (1);
-    }
-}
-
-/* Internal malloc without locking and registration.  */
-static void *
-malloc_internal (size_t size)
-{
-  void *result = mmap (NULL, size, PROT_READ | PROT_WRITE,
-                       MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
-  if (result == MAP_FAILED)
-    {
-      printf ("error: mmap: %m\n");
-      _exit (1);
-    }
-  return result;
-}
-
-void *
-malloc (size_t size)
-{
-  if (size == 0)
-    size = 1;
-  xlock ();
-  void *result = malloc_internal (size);
-  for (int i = 0; i < malloc_chunk_count; ++i)
-    if (chunks[i].start == NULL)
-      {
-        chunks[i].start = result;
-        chunks[i].size = size;
-        xunlock ();
-        return result;
-      }
-  xunlock ();
-  printf ("error: no place to store chunk pointer\n");
-  _exit (1);
-}
-
-void *
-calloc (size_t a, size_t b)
-{
-  if (b != 0 && a > SIZE_MAX / b)
-    return NULL;
-  /* malloc uses mmap, which provides zeroed memory.  */
-  return malloc (a * b);
-}
-
-static void
-xunmap (void *ptr, size_t size)
-{
-  int ret = munmap (ptr, size);
-  if (ret < 0)
-    {
-      printf ("error: munmap (%p, %zu) failed: %m\n", ptr, size);
-      _exit (1);
-    }
-}
-
-void
-free (void *ptr)
-{
-  if (ptr == NULL)
-    return;
-
-  xlock ();
-  for (int i = 0; i < malloc_chunk_count; ++i)
-    if (chunks[i].start == ptr)
-      {
-        xunmap (ptr, chunks[i].size);
-        chunks[i] = (struct malloc_chunk) {};
-        xunlock ();
-        return;
-      }
-  xunlock ();
-  printf ("error: tried to free non-allocated pointer %p\n", ptr);
-  _exit (1);
-}
-
-void *
-realloc (void *old, size_t size)
-{
-  if (old != NULL)
-    {
-      xlock ();
-      for (int i = 0; i < malloc_chunk_count; ++i)
-        if (chunks[i].start == old)
-          {
-            size_t old_size = chunks[i].size;
-            void *result;
-            if (old_size < size)
-              {
-                result = malloc_internal (size);
-                /* Reuse the slot for the new allocation.  */
-                memcpy (result, old, old_size);
-                xunmap (old, old_size);
-                chunks[i].start = result;
-                chunks[i].size = size;
-              }
-            else
-              /* Old size is not smaller, so reuse the old
-                 allocation.  */
-              result = old;
-            xunlock ();
-            return result;
-          }
-      xunlock ();
-      printf ("error: tried to realloc non-allocated pointer %p\n", old);
-      _exit (1);
-    }
-  else
-    return malloc (size);
-}
+#define INTERPOSE_THREADS 1
+#include "../malloc/tst-interpose-aux.c"