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f4724843ad
Fall back to ppoll if ppoll_time64 fails with ENOSYS.
Fixes commit 370da8a121 ("nptl: Fix
tst-cancel30 on sparc64").
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
88 lines
2.4 KiB
C
88 lines
2.4 KiB
C
/* Check if printf like functions does not disable asynchronous cancellation
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mode (BZ#29214).
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Copyright (C) 2022-2024 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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#include <errno.h>
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#include <support/check.h>
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#include <support/xstdio.h>
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#include <support/xthread.h>
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#include <sys/syscall.h>
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#include <unistd.h>
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static pthread_barrier_t b;
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static void *
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tf (void *arg)
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{
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int old;
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TEST_COMPARE (pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, NULL), 0);
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TEST_COMPARE (pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, &old), 0);
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TEST_COMPARE (old, PTHREAD_CANCEL_ASYNCHRONOUS);
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/* Check if internal lock cleanup routines restore the cancellation type
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correctly. */
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printf ("...\n");
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TEST_COMPARE (pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, &old), 0);
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TEST_COMPARE (old, PTHREAD_CANCEL_ASYNCHRONOUS);
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xpthread_barrier_wait (&b);
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/* Wait indefinitely for cancellation, which only works if asynchronous
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cancellation is enabled. */
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#ifdef SYS_ppoll_time64
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long int ret = syscall (SYS_ppoll_time64, NULL, 0, NULL, NULL);
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(void) ret;
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# ifdef SYS_ppoll
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if (ret == -1 && errno == ENOSYS)
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syscall (SYS_ppoll, NULL, 0, NULL, NULL);
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# endif
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#else
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# ifdef SYS_ppoll
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syscall (SYS_ppoll, NULL, 0, NULL, NULL);
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# else
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for (;;);
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# endif
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#endif
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return 0;
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}
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static int
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do_test (void)
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{
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xpthread_barrier_init (&b, NULL, 2);
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pthread_t th = xpthread_create (NULL, tf, NULL);
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xpthread_barrier_wait (&b);
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xpthread_cancel (th);
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void *status = xpthread_join (th);
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TEST_VERIFY (status == PTHREAD_CANCELED);
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return 0;
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}
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/* There is no need to wait full TIMEOUT if asynchronous is not working. */
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#define TIMEOUT 3
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#include <support/test-driver.c>
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