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566e10aa72
The upper bits of the sigset_t s not fully initialized in the signal mask calls that return information from kernel (sigprocmask, sigpending, and pthread_sigmask), since the exported sigset_t size (1024 bits) is larger than Linux support one (64 or 128 bits). It might make sigisemptyset/sigorset/sigandset fail if the mask is filled prior the call. This patch changes the internal signal function to handle up to supported Linux signal number (_NSIG), the remaining bits are untouched. Checked on x86_64-linux-gnu and i686-linux-gnu.
63 lines
1.5 KiB
C
63 lines
1.5 KiB
C
/* Tests for sigisemptyset and pthread_sigmask.
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Copyright (C) 2020 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 <signal.h>
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#include <support/check.h>
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#include <support/xthread.h>
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static void *
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tf (void *arg)
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{
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{
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sigset_t set;
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sigemptyset (&set);
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TEST_COMPARE (pthread_sigmask (SIG_BLOCK, 0, &set), 0);
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TEST_COMPARE (sigisemptyset (&set), 1);
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}
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{
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sigset_t set;
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sigfillset (&set);
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TEST_COMPARE (pthread_sigmask (SIG_BLOCK, 0, &set), 0);
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TEST_COMPARE (sigisemptyset (&set), 1);
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}
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return NULL;
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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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/* Ensure current SIG_BLOCK mask empty. */
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{
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sigset_t set;
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sigemptyset (&set);
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TEST_COMPARE (sigprocmask (SIG_BLOCK, &set, 0), 0);
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}
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{
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pthread_t thr = xpthread_create (NULL, tf, NULL);
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xpthread_join (thr);
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}
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return 0;
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}
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#include <support/test-driver.c>
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