Elliott Hughes | d35df49 | 2017-02-15 15:19:05 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org> |
Elliott Hughes | 39bac05 | 2017-05-25 16:56:11 -0700 | [diff] [blame^] | 3 | * Copyright (c) 2015-2017 The strace developers. |
Elliott Hughes | d35df49 | 2017-02-15 15:19:05 -0800 | [diff] [blame] | 4 | * All rights reserved. |
| 5 | * |
| 6 | * Redistribution and use in source and binary forms, with or without |
| 7 | * modification, are permitted provided that the following conditions |
| 8 | * are met: |
| 9 | * 1. Redistributions of source code must retain the above copyright |
| 10 | * notice, this list of conditions and the following disclaimer. |
| 11 | * 2. Redistributions in binary form must reproduce the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer in the |
| 13 | * documentation and/or other materials provided with the distribution. |
| 14 | * 3. The name of the author may not be used to endorse or promote products |
| 15 | * derived from this software without specific prior written permission. |
| 16 | * |
| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | */ |
| 28 | |
| 29 | #include "tests.h" |
| 30 | #include <assert.h> |
| 31 | #include <stdio.h> |
| 32 | #include <stdint.h> |
| 33 | #include <signal.h> |
| 34 | #include <time.h> |
| 35 | #include <sys/time.h> |
| 36 | |
| 37 | int |
| 38 | main(void) |
| 39 | { |
| 40 | #if defined __x86_64__ && defined __ILP32__ |
| 41 | /* |
| 42 | * x32 is broken from the beginning: |
| 43 | * https://lkml.org/lkml/2015/11/30/790 |
| 44 | */ |
| 45 | error_msg_and_skip("x32 is broken"); |
| 46 | #else |
| 47 | const sigset_t set = {}; |
| 48 | const struct sigaction act = { .sa_handler = SIG_IGN }; |
| 49 | const struct itimerval itv = { .it_value.tv_usec = 111111 }; |
| 50 | struct timespec req = { .tv_nsec = 222222222 }, rem; |
| 51 | |
| 52 | assert(sigaction(SIGALRM, &act, NULL) == 0); |
| 53 | assert(sigprocmask(SIG_SETMASK, &set, NULL) == 0); |
| 54 | if (setitimer(ITIMER_REAL, &itv, NULL)) |
| 55 | perror_msg_and_skip("setitimer"); |
| 56 | if (nanosleep(&req, &rem)) |
| 57 | perror_msg_and_fail("nanosleep"); |
| 58 | |
Elliott Hughes | 39bac05 | 2017-05-25 16:56:11 -0700 | [diff] [blame^] | 59 | printf("nanosleep\\(\\{tv_sec=%lld, tv_nsec=%llu\\}" |
| 60 | ", \\{tv_sec=%lld, tv_nsec=%llu\\}\\)" |
Elliott Hughes | d35df49 | 2017-02-15 15:19:05 -0800 | [diff] [blame] | 61 | " = \\? ERESTART_RESTARTBLOCK \\(Interrupted by signal\\)\n", |
Elliott Hughes | 39bac05 | 2017-05-25 16:56:11 -0700 | [diff] [blame^] | 62 | (long long) req.tv_sec, zero_extend_signed_to_ull(req.tv_nsec), |
| 63 | (long long) rem.tv_sec, zero_extend_signed_to_ull(rem.tv_nsec)); |
Elliott Hughes | d35df49 | 2017-02-15 15:19:05 -0800 | [diff] [blame] | 64 | puts("--- SIGALRM \\{si_signo=SIGALRM, si_code=SI_KERNEL\\} ---"); |
| 65 | #ifdef __arm__ |
| 66 | /* old kernels used to overwrite ARM_r0 with -EINTR */ |
| 67 | # define ALTERNATIVE_NANOSLEEP_REQ "0xfffffffc|" |
| 68 | #else |
| 69 | # define ALTERNATIVE_NANOSLEEP_REQ "" |
| 70 | #endif |
Elliott Hughes | 39bac05 | 2017-05-25 16:56:11 -0700 | [diff] [blame^] | 71 | printf("(nanosleep\\((%s\\{tv_sec=%lld, tv_nsec=%llu\\})" |
| 72 | ", %p|restart_syscall\\(<\\.\\.\\." |
Elliott Hughes | d35df49 | 2017-02-15 15:19:05 -0800 | [diff] [blame] | 73 | " resuming interrupted nanosleep \\.\\.\\.>)\\) = 0\n", |
| 74 | ALTERNATIVE_NANOSLEEP_REQ, |
Elliott Hughes | 39bac05 | 2017-05-25 16:56:11 -0700 | [diff] [blame^] | 75 | (long long) req.tv_sec, zero_extend_signed_to_ull(req.tv_nsec), |
| 76 | &rem); |
Elliott Hughes | d35df49 | 2017-02-15 15:19:05 -0800 | [diff] [blame] | 77 | |
| 78 | puts("\\+\\+\\+ exited with 0 \\+\\+\\+"); |
| 79 | return 0; |
| 80 | #endif |
| 81 | } |