Dmitry V. Levin
c6782f144a
strace test suite is now provided under the terms of the GNU General Public License version 2 or later, see tests/COPYING for more details.
60 lines
1.1 KiB
C
60 lines
1.1 KiB
C
/*
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* Check decoding of pause syscall.
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*
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* Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
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* Copyright (c) 2016 Fei Jie <feij.fnst@cn.fujitsu.com>
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* All rights reserved.
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include "tests.h"
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#include <asm/unistd.h>
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#ifdef __NR_pause
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# include <errno.h>
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# include <signal.h>
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# include <stdio.h>
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# include <sys/time.h>
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# include <unistd.h>
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static void
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handler(int sig)
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{
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}
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int
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main(void)
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{
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const struct sigaction act = { .sa_handler = handler };
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if (sigaction(SIGALRM, &act, NULL))
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perror_msg_and_fail("sigaction");
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sigset_t mask;
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sigemptyset(&mask);
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sigaddset(&mask, SIGALRM);
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if (sigprocmask(SIG_UNBLOCK, &mask, NULL))
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perror_msg_and_fail("sigprocmask");
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const struct itimerval itv = { .it_value.tv_usec = 123456 };
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if (setitimer(ITIMER_REAL, &itv, NULL))
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perror_msg_and_fail("setitimer");
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syscall(__NR_pause);
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if (errno == ENOSYS)
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printf("pause() = -1 ENOSYS (%m)\n");
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else
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printf("pause() = ? ERESTARTNOHAND"
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" (To be restarted if no handler)\n");
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puts("+++ exited with 0 +++");
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return 0;
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}
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#else
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SKIP_MAIN_UNDEFINED("__NR_pause")
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#endif
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