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Diffstat (limited to 'stdlib/tst-tls-atexit.c')
-rw-r--r--stdlib/tst-tls-atexit.c156
1 files changed, 0 insertions, 156 deletions
diff --git a/stdlib/tst-tls-atexit.c b/stdlib/tst-tls-atexit.c
deleted file mode 100644
index 6dbf49d460..0000000000
--- a/stdlib/tst-tls-atexit.c
+++ /dev/null
@@ -1,156 +0,0 @@
-/* Verify that DSO is unloaded only if its TLS objects are destroyed.
- Copyright (C) 2013-2017 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
-
-/* For the default case, i.e. NO_DELETE not defined, the test dynamically loads
- a DSO and spawns a thread that subsequently calls into the DSO to register a
- destructor for an object in the DSO and then calls dlclose on the handle for
- the DSO. When the thread exits, the DSO should not be unloaded or else the
- destructor called during thread exit will crash. Further in the main
- thread, the DSO is opened and closed again, at which point the DSO should be
- unloaded.
-
- When NO_DELETE is defined, the DSO is loaded twice, once with just RTLD_LAZY
- flag and the second time with the RTLD_NODELETE flag set. The thread is
- spawned, destructor registered and then thread exits without closing the
- DSO. In the main thread, the first handle is then closed, followed by the
- second handle. In the end, the DSO should remain loaded due to the
- RTLD_NODELETE flag being set in the second dlopen call. */
-
-#include <dlfcn.h>
-#include <pthread.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <string.h>
-#include <errno.h>
-#include <link.h>
-#include <stdbool.h>
-
-#ifndef NO_DELETE
-# define LOADED_IS_GOOD false
-#endif
-
-#ifndef H2_RTLD_FLAGS
-# define H2_RTLD_FLAGS (RTLD_LAZY)
-#endif
-
-#define DSO_NAME "$ORIGIN/tst-tls-atexit-lib.so"
-
-/* Walk through the map in the _r_debug structure to see if our lib is still
- loaded. */
-static bool
-is_loaded (void)
-{
- struct link_map *lm = (struct link_map *) _r_debug.r_map;
-
- for (; lm; lm = lm->l_next)
- if (lm->l_type == lt_loaded && lm->l_name
- && strcmp (basename (DSO_NAME), basename (lm->l_name)) == 0)
- {
- printf ("%s is still loaded\n", lm->l_name);
- return true;
- }
- return false;
-}
-
-/* Accept a valid handle returned by DLOPEN, load the reg_dtor symbol to
- register a destructor and then call dlclose on the handle. The dlclose
- should not unload the DSO since the destructor has not been called yet. */
-static void *
-reg_dtor_and_close (void *h)
-{
- void (*reg_dtor) (void) = (void (*) (void)) dlsym (h, "reg_dtor");
-
- if (reg_dtor == NULL)
- {
- printf ("Unable to find symbol: %s\n", dlerror ());
- return (void *) (uintptr_t) 1;
- }
-
- reg_dtor ();
-
-#ifndef NO_DELETE
- dlclose (h);
-#endif
-
- return NULL;
-}
-
-static int
-spawn_thread (void *h)
-{
- pthread_t t;
- int ret;
- void *thr_ret;
-
- if ((ret = pthread_create (&t, NULL, reg_dtor_and_close, h)) != 0)
- {
- printf ("pthread_create failed: %s\n", strerror (ret));
- return 1;
- }
-
- if ((ret = pthread_join (t, &thr_ret)) != 0)
- {
- printf ("pthread_join failed: %s\n", strerror (ret));
- return 1;
- }
-
- if (thr_ret != NULL)
- return 1;
-
- return 0;
-}
-
-static int
-do_test (void)
-{
- /* Load the DSO. */
- void *h1 = dlopen (DSO_NAME, RTLD_LAZY);
- if (h1 == NULL)
- {
- printf ("h1: Unable to load DSO: %s\n", dlerror ());
- return 1;
- }
-
-#ifndef NO_DELETE
- if (spawn_thread (h1) != 0)
- return 1;
-#endif
-
- void *h2 = dlopen (DSO_NAME, H2_RTLD_FLAGS);
- if (h2 == NULL)
- {
- printf ("h2: Unable to load DSO: %s\n", dlerror ());
- return 1;
- }
-
-#ifdef NO_DELETE
- if (spawn_thread (h1) != 0)
- return 1;
-
- dlclose (h1);
-#endif
- dlclose (h2);
-
- /* Check link maps to ensure that the DSO has unloaded. In the normal case,
- the DSO should be unloaded if there are no uses. However, if one of the
- dlopen calls were with RTLD_NODELETE, the DSO should remain loaded. */
- return is_loaded () == LOADED_IS_GOOD ? 0 : 1;
-}
-
-#define TEST_FUNCTION do_test ()
-#include "../test-skeleton.c"