diff options
Diffstat (limited to 'nptl/tst-tls7.c')
-rw-r--r-- | nptl/tst-tls7.c | 143 |
1 files changed, 0 insertions, 143 deletions
diff --git a/nptl/tst-tls7.c b/nptl/tst-tls7.c deleted file mode 100644 index 3e85a6e..0000000 --- a/nptl/tst-tls7.c +++ /dev/null @@ -1,143 +0,0 @@ -/* Copyright (C) 2013 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/>. */ - - -/* This test checks that TLS in a dlopened object works when first accessed - from a signal handler. */ - -#include <assert.h> -#include <atomic.h> -#include <dlfcn.h> -#include <pthread.h> -#include <semaphore.h> -#include <signal.h> -#include <stdio.h> -#include <stdlib.h> - -void * -spin (void *ignored) -{ - while (1) - { - /* busywork */ - free (malloc (128)); - } - - /* never reached */ - return NULL; -} - -static void (*tls7mod_action) (int, siginfo_t *, void *); - -static void -action (int signo, siginfo_t *info, void *ignored) -{ - sem_t *sem = info->si_value.sival_ptr; - - atomic_read_barrier (); - assert (tls7mod_action != NULL); - (*tls7mod_action) (signo, info, ignored); - - /* This sem_post may trigger dlclose, which will invalidate tls7mod_action. - It is important to do that only after tls7mod_action is no longer - active. */ - sem_post (sem); -} - -int -do_test (void) -{ - pthread_t th[10]; - - for (int i = 0; i < 10; ++i) - { - if (pthread_create (&th[i], NULL, spin, NULL)) - { - puts ("pthread_create failed"); - exit (1); - } - } -#define NITERS 75 - - for (int i = 0; i < NITERS; ++i) - { - void *h = dlopen ("tst-tls7mod.so", RTLD_LAZY); - if (h == NULL) - { - puts ("dlopen failed"); - exit (1); - } - - tls7mod_action = dlsym (h, "action"); - if (tls7mod_action == NULL) - { - puts ("dlsym for action failed"); - exit (1); - } - atomic_write_barrier (); - - struct sigaction sa; - sa.sa_sigaction = action; - sigemptyset (&sa.sa_mask); - sa.sa_flags = SA_SIGINFO; - if (sigaction (SIGUSR1, &sa, NULL)) - { - puts ("sigaction failed"); - exit (1); - } - - sem_t sem; - if (sem_init (&sem, 0, 0)) - { - puts ("sem_init failed"); - } - - sigval_t val; - val.sival_ptr = &sem; - for (int i = 0; i < 10; ++i) - { - if (pthread_sigqueue (th[i], SIGUSR1, val)) - { - puts ("pthread_sigqueue failed"); - } - } - - - for (int i = 0; i < 10; ++i) - { - if (sem_wait (&sem)) - { - puts ("sem_wait failed"); - } - } - - /* Paranoia. */ - tls7mod_action = NULL; - - if (dlclose (h)) - { - puts ("dlclose failed"); - exit (1); - } - } - return 0; -} - -#define TIMEOUT 8 - -#define TEST_FUNCTION do_test () -#include "../test-skeleton.c" |