/*
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* Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
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* Copyright (c) 2015-2017 The strace developers.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "tests.h"
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#include <assert.h>
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#include <stdio.h>
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#include <stdint.h>
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#include <signal.h>
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#include <time.h>
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#include <sys/time.h>
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int
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main(void)
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{
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#if defined __x86_64__ && defined __ILP32__
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/*
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* x32 is broken from the beginning:
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* https://lkml.org/lkml/2015/11/30/790
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*/
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error_msg_and_skip("x32 is broken");
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#else
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const sigset_t set = {};
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const struct sigaction act = { .sa_handler = SIG_IGN };
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const struct itimerval itv = { .it_value.tv_usec = 111111 };
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struct timespec req = { .tv_nsec = 222222222 }, rem;
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assert(sigaction(SIGALRM, &act, NULL) == 0);
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assert(sigprocmask(SIG_SETMASK, &set, NULL) == 0);
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if (setitimer(ITIMER_REAL, &itv, NULL))
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perror_msg_and_skip("setitimer");
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if (nanosleep(&req, &rem))
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perror_msg_and_fail("nanosleep");
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printf("nanosleep\\(\\{tv_sec=%lld, tv_nsec=%llu\\}"
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", \\{tv_sec=%lld, tv_nsec=%llu\\}\\)"
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" = \\? ERESTART_RESTARTBLOCK \\(Interrupted by signal\\)\n",
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(long long) req.tv_sec, zero_extend_signed_to_ull(req.tv_nsec),
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(long long) rem.tv_sec, zero_extend_signed_to_ull(rem.tv_nsec));
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puts("--- SIGALRM \\{si_signo=SIGALRM, si_code=SI_KERNEL\\} ---");
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#ifdef __arm__
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/* old kernels used to overwrite ARM_r0 with -EINTR */
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# define ALTERNATIVE_NANOSLEEP_REQ "0xfffffffc|"
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#else
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# define ALTERNATIVE_NANOSLEEP_REQ ""
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#endif
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printf("(nanosleep\\((%s\\{tv_sec=%lld, tv_nsec=%llu\\})"
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", %p|restart_syscall\\(<\\.\\.\\."
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" resuming interrupted nanosleep \\.\\.\\.>)\\) = 0\n",
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ALTERNATIVE_NANOSLEEP_REQ,
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(long long) req.tv_sec, zero_extend_signed_to_ull(req.tv_nsec),
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&rem);
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puts("\\+\\+\\+ exited with 0 \\+\\+\\+");
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return 0;
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#endif
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}
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