granicus.if.org Git - strace/blob - tests/clock_nanosleep.c

   1 /*
   2  * Check decoding of clock_nanosleep and clock_gettime syscalls.
   3  *
   4  * Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
   5  * Copyright (c) 2015-2018 The strace developers.
   6  * All rights reserved.
   7  *
   8  * SPDX-License-Identifier: GPL-2.0-or-later
   9  */
  10
  11 #include "tests.h"
  12 #include <assert.h>
  13 #include <stdio.h>
  14 #include <stdint.h>
  15 #include <signal.h>
  16 #include <time.h>
  17 #include <unistd.h>
  18 #include <sys/time.h>
  19 #include <asm/unistd.h>
  20
  21 static void
  22 handler(int signo)
  23 {
  24 }
  25
  26 int
  27 main(void)
  28 {
  29         struct {
  30                 struct timespec ts;
  31                 uint32_t pad[2];
  32         } req = {
  33                 .ts.tv_nsec = 0xc0de1,
  34                 .pad = { 0xdeadbeef, 0xbadc0ded }
  35         }, rem = {
  36                 .ts = { .tv_sec = 0xc0de2, .tv_nsec = 0xc0de3 },
  37                 .pad = { 0xdeadbeef, 0xbadc0ded }
  38         };
  39         const sigset_t set = {};
  40         const struct sigaction act = { .sa_handler = handler };
  41         const struct itimerval itv = {
  42                 .it_interval.tv_usec = 222222,
  43                 .it_value.tv_usec = 111111
  44         };
  45
  46         if (syscall(__NR_clock_nanosleep, CLOCK_REALTIME, 0, &req.ts, NULL))
  47                 perror_msg_and_skip("clock_nanosleep CLOCK_REALTIME");
  48         printf("clock_nanosleep(CLOCK_REALTIME, 0"
  49                ", {tv_sec=%lld, tv_nsec=%llu}, NULL) = 0\n",
  50                (long long) req.ts.tv_sec,
  51                zero_extend_signed_to_ull(req.ts.tv_nsec));
  52
  53         assert(syscall(__NR_clock_nanosleep, CLOCK_REALTIME, 0,
  54                        NULL, &rem.ts) == -1);
  55         printf("clock_nanosleep(CLOCK_REALTIME, 0, NULL, %p)"
  56                " = -1 EFAULT (%m)\n", &rem.ts);
  57
  58         assert(syscall(__NR_clock_nanosleep, CLOCK_REALTIME, 0,
  59                        &req.ts, &rem.ts) == 0);
  60         printf("clock_nanosleep(CLOCK_REALTIME, 0"
  61                ", {tv_sec=%lld, tv_nsec=%llu}, %p) = 0\n",
  62                (long long) req.ts.tv_sec,
  63                zero_extend_signed_to_ull(req.ts.tv_nsec), &rem.ts);
  64
  65         req.ts.tv_nsec = 999999999 + 1;
  66         assert(syscall(__NR_clock_nanosleep, CLOCK_MONOTONIC, 0,
  67                        &req.ts, &rem.ts) == -1);
  68         printf("clock_nanosleep(CLOCK_MONOTONIC, 0"
  69                ", {tv_sec=%lld, tv_nsec=%llu}, %p) = -1 EINVAL (%m)\n",
  70                (long long) req.ts.tv_sec,
  71                zero_extend_signed_to_ull(req.ts.tv_nsec), &rem.ts);
  72
  73         req.ts.tv_sec = 0xdeadbeefU;
  74         req.ts.tv_nsec = 0xfacefeedU;
  75         assert(syscall(__NR_clock_nanosleep, CLOCK_REALTIME, 0,
  76                        &req.ts, &rem.ts) == -1);
  77         printf("clock_nanosleep(CLOCK_REALTIME, 0"
  78                ", {tv_sec=%lld, tv_nsec=%llu}, %p) = -1 EINVAL (%m)\n",
  79                (long long) req.ts.tv_sec,
  80                zero_extend_signed_to_ull(req.ts.tv_nsec), &rem.ts);
  81
  82         req.ts.tv_sec = (time_t) 0xcafef00ddeadbeefLL;
  83         req.ts.tv_nsec = (long) 0xbadc0dedfacefeedLL;
  84         assert(syscall(__NR_clock_nanosleep, CLOCK_MONOTONIC, 0,
  85                        &req.ts, &rem.ts) == -1);
  86         printf("clock_nanosleep(CLOCK_MONOTONIC, 0"
  87                ", {tv_sec=%lld, tv_nsec=%llu}, %p) = -1 EINVAL (%m)\n",
  88                (long long) req.ts.tv_sec,
  89                zero_extend_signed_to_ull(req.ts.tv_nsec), &rem.ts);
  90
  91         assert(sigaction(SIGALRM, &act, NULL) == 0);
  92         assert(sigprocmask(SIG_SETMASK, &set, NULL) == 0);
  93
  94         if (setitimer(ITIMER_REAL, &itv, NULL))
  95                 perror_msg_and_skip("setitimer");
  96
  97         req.ts.tv_sec = 0;
  98         req.ts.tv_nsec = 999999999;
  99         assert(syscall(__NR_clock_nanosleep, CLOCK_REALTIME, 0,
 100                        &req.ts, &rem.ts) == -1);
 101         printf("clock_nanosleep(CLOCK_REALTIME, 0"
 102                ", {tv_sec=%lld, tv_nsec=%llu}, {tv_sec=%lld, tv_nsec=%llu})"
 103                " = ? ERESTART_RESTARTBLOCK (Interrupted by signal)\n",
 104                (long long) req.ts.tv_sec,
 105                zero_extend_signed_to_ull(req.ts.tv_nsec),
 106                (long long) rem.ts.tv_sec,
 107                zero_extend_signed_to_ull(rem.ts.tv_nsec));
 108         puts("--- SIGALRM {si_signo=SIGALRM, si_code=SI_KERNEL} ---");
 109
 110         assert(syscall(__NR_clock_gettime, CLOCK_REALTIME, &req.ts) == 0);
 111         printf("clock_gettime(CLOCK_REALTIME, {tv_sec=%lld, tv_nsec=%llu}) = 0\n",
 112                (long long) req.ts.tv_sec,
 113                zero_extend_signed_to_ull(req.ts.tv_nsec));
 114
 115         ++req.ts.tv_sec;
 116         rem.ts.tv_sec = 0xc0de4;
 117         rem.ts.tv_nsec = 0xc0de5;
 118         assert(syscall(__NR_clock_nanosleep, CLOCK_REALTIME, TIMER_ABSTIME,
 119                        &req.ts, &rem.ts) == -1);
 120         printf("clock_nanosleep(CLOCK_REALTIME, TIMER_ABSTIME"
 121                ", {tv_sec=%lld, tv_nsec=%llu}, %p)"
 122                " = ? ERESTARTNOHAND (To be restarted if no handler)\n",
 123                (long long) req.ts.tv_sec,
 124                zero_extend_signed_to_ull(req.ts.tv_nsec), &rem.ts);
 125         puts("--- SIGALRM {si_signo=SIGALRM, si_code=SI_KERNEL} ---");
 126
 127         puts("+++ exited with 0 +++");
 128         return 0;
 129 }