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Diffstat (limited to 'nptl/tst-stack4.c')
| -rw-r--r-- | nptl/tst-stack4.c | 159 |
1 files changed, 0 insertions, 159 deletions
diff --git a/nptl/tst-stack4.c b/nptl/tst-stack4.c deleted file mode 100644 index eed7c58a9d..0000000000 --- a/nptl/tst-stack4.c +++ /dev/null @@ -1,159 +0,0 @@ -/* Test DTV size oveflow when pthread_create reuses old DTV and TLS is - used by dlopened shared object. - Copyright (C) 2014-2017 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/>. */ - -#include <stdio.h> -#include <stdint.h> -#include <dlfcn.h> -#include <assert.h> -#include <pthread.h> - -/* The choices of thread count, and file counts are arbitary. - The point is simply to run enough threads that an exiting - thread has it's stack reused by another thread at the same - time as new libraries have been loaded. */ -#define DSO_SHARED_FILES 20 -#define DSO_OPEN_THREADS 20 -#define DSO_EXEC_THREADS 2 - -/* Used to make sure that only one thread is calling dlopen and dlclose - at a time. */ -pthread_mutex_t g_lock; - -typedef void (*function) (void); - -void * -dso_invoke(void *dso_fun) -{ - function *fun_vec = (function *) dso_fun; - int dso; - - for (dso = 0; dso < DSO_SHARED_FILES; dso++) - (*fun_vec[dso]) (); - - pthread_exit (NULL); -} - -void * -dso_process (void * p) -{ - void *handle[DSO_SHARED_FILES]; - function fun_vec[DSO_SHARED_FILES]; - char dso_path[DSO_SHARED_FILES][100]; - int dso; - int t = (int) (uintptr_t) p; - - /* Open DSOs and get a function. */ - for (dso = 0; dso < DSO_SHARED_FILES; dso++) - { - sprintf (dso_path[dso], "tst-stack4mod-%i-%i.so", t, dso); - - pthread_mutex_lock (&g_lock); - - handle[dso] = dlopen (dso_path[dso], RTLD_NOW); - assert (handle[dso]); - - fun_vec[dso] = (function) dlsym (handle[dso], "function"); - assert (fun_vec[dso]); - - pthread_mutex_unlock (&g_lock); - } - - /* Spawn workers. */ - pthread_t thread[DSO_EXEC_THREADS]; - int i, ret; - uintptr_t result = 0; - for (i = 0; i < DSO_EXEC_THREADS; i++) - { - pthread_mutex_lock (&g_lock); - ret = pthread_create (&thread[i], NULL, dso_invoke, (void *) fun_vec); - if (ret != 0) - { - printf ("pthread_create failed: %d\n", ret); - result = 1; - } - pthread_mutex_unlock (&g_lock); - } - - if (!result) - for (i = 0; i < DSO_EXEC_THREADS; i++) - { - ret = pthread_join (thread[i], NULL); - if (ret != 0) - { - printf ("pthread_join failed: %d\n", ret); - result = 1; - } - } - - /* Close all DSOs. */ - for (dso = 0; dso < DSO_SHARED_FILES; dso++) - { - pthread_mutex_lock (&g_lock); - dlclose (handle[dso]); - pthread_mutex_unlock (&g_lock); - } - - /* Exit. */ - pthread_exit ((void *) result); -} - -static int -do_test (void) -{ - pthread_t thread[DSO_OPEN_THREADS]; - int i,j; - int ret; - int result = 0; - - pthread_mutex_init (&g_lock, NULL); - - /* 100 is arbitrary here and is known to trigger PR 13862. */ - for (j = 0; j < 100; j++) - { - for (i = 0; i < DSO_OPEN_THREADS; i++) - { - ret = pthread_create (&thread[i], NULL, dso_process, - (void *) (uintptr_t) i); - if (ret != 0) - { - printf ("pthread_create failed: %d\n", ret); - result = 1; - } - } - - if (result) - break; - - for (i = 0; i < DSO_OPEN_THREADS; i++) - { - ret = pthread_join (thread[i], NULL); - if (ret != 0) - { - printf ("pthread_join failed: %d\n", ret); - result = 1; - } - } - } - - return result; -} - -#define TEST_FUNCTION do_test () -#define TIMEOUT 100 -#include "../test-skeleton.c" |