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73c7f5a879
The fix for bug 19193 breaks some old applications which appear
to use pthread_kill to probe if a thread is still running, something
that is not supported by POSIX.
(cherry picked from commit 95dba35bf0)
64 lines
1.9 KiB
C
64 lines
1.9 KiB
C
/* Test that pthread_kill succeeds for an exited thread.
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Copyright (C) 2021 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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/* This test verifies that the default pthread_kill returns 0 (and not
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ESRCH) for a thread that has exited on the kernel side. */
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#include <errno.h>
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#include <pthread.h>
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#include <shlib-compat.h>
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#include <signal.h>
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#include <stddef.h>
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#include <support/check.h>
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#include <support/support.h>
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#include <support/xthread.h>
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static void *
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noop_thread (void *closure)
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{
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return NULL;
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}
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#if TEST_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_34) && PTHREAD_IN_LIBC
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extern __typeof (pthread_kill) compat_pthread_kill;
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compat_symbol_reference (libpthread, compat_pthread_kill, pthread_kill,
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GLIBC_2_0);
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#endif
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static int
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do_test (void)
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{
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pthread_t thr = xpthread_create (NULL, noop_thread, NULL);
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support_wait_for_thread_exit ();
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/* NB: Always uses the default symbol due to separate compilation. */
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xpthread_kill (thr, SIGUSR1);
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#if TEST_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_34) && PTHREAD_IN_LIBC
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/* Old binaries need the non-conforming ESRCH error code. */
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TEST_COMPARE (compat_pthread_kill (thr, SIGUSR1), ESRCH);
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#endif
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xpthread_join (thr);
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return 0;
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}
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#include <support/test-driver.c>
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