blob: 3f07d7836cbffda675055cf6a5f446e0884fba0d [file] [log] [blame]
/*
* Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "tests.h"
#include <assert.h>
#include <stdio.h>
#include <stdint.h>
#include <signal.h>
#include <time.h>
#include <sys/time.h>
int
main(void)
{
#if defined __x86_64__ && defined __ILP32__
/*
* x32 is broken from the beginning:
* https://lkml.org/lkml/2015/11/30/790
*/
error_msg_and_skip("x32 is broken");
#else
const sigset_t set = {};
const struct sigaction act = { .sa_handler = SIG_IGN };
const struct itimerval itv = { .it_value.tv_usec = 111111 };
struct timespec req = { .tv_nsec = 222222222 }, rem;
assert(sigaction(SIGALRM, &act, NULL) == 0);
assert(sigprocmask(SIG_SETMASK, &set, NULL) == 0);
if (setitimer(ITIMER_REAL, &itv, NULL))
perror_msg_and_skip("setitimer");
if (nanosleep(&req, &rem))
perror_msg_and_fail("nanosleep");
printf("nanosleep\\(\\{%jd, %jd\\}, \\{%jd, %jd\\}\\)"
" = \\? ERESTART_RESTARTBLOCK \\(Interrupted by signal\\)\n",
(intmax_t) req.tv_sec, (intmax_t) req.tv_nsec,
(intmax_t) rem.tv_sec, (intmax_t) rem.tv_nsec);
puts("--- SIGALRM \\{si_signo=SIGALRM, si_code=SI_KERNEL\\} ---");
#ifdef __arm__
/* old kernels used to overwrite ARM_r0 with -EINTR */
# define ALTERNATIVE_NANOSLEEP_REQ "0xfffffffc|"
#else
# define ALTERNATIVE_NANOSLEEP_REQ ""
#endif
printf("(nanosleep\\((%s\\{%jd, %jd\\}), %p|restart_syscall\\(<\\.\\.\\."
" resuming interrupted nanosleep \\.\\.\\.>)\\) = 0\n",
ALTERNATIVE_NANOSLEEP_REQ,
(intmax_t) req.tv_sec, (intmax_t) req.tv_nsec, &rem);
puts("\\+\\+\\+ exited with 0 \\+\\+\\+");
return 0;
#endif
}