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

   1 /*
   2  * Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
   3  * Copyright (c) 2015-2018 The strace developers.
   4  * All rights reserved.
   5  *
   6  * SPDX-License-Identifier: GPL-2.0-or-later
   7  */
   8
   9 #include "tests.h"
  10 #include <stdio.h>
  11 #include <stdint.h>
  12 #include <time.h>
  13 #include <unistd.h>
  14 #include <asm/unistd.h>
  15
  16 #if defined __NR_clock_getres \
  17  && defined __NR_clock_gettime \
  18  && defined __NR_clock_settime
  19
  20 int
  21 main(void)
  22 {
  23         struct {
  24                 struct timespec ts;
  25                 uint32_t pad[2];
  26         } t = {
  27                 .pad = { 0xdeadbeef, 0xbadc0ded }
  28         };
  29         long rc;
  30
  31         if (syscall(__NR_clock_getres, CLOCK_REALTIME, &t.ts))
  32                 perror_msg_and_skip("clock_getres CLOCK_REALTIME");
  33         printf("clock_getres(CLOCK_REALTIME, {tv_sec=%lld, tv_nsec=%llu})"
  34                " = 0\n",
  35                (long long) t.ts.tv_sec,
  36                zero_extend_signed_to_ull(t.ts.tv_nsec));
  37
  38         if (syscall(__NR_clock_gettime, CLOCK_PROCESS_CPUTIME_ID, &t.ts))
  39                 perror_msg_and_skip("clock_gettime CLOCK_PROCESS_CPUTIME_ID");
  40         printf("clock_gettime(CLOCK_PROCESS_CPUTIME_ID"
  41                ", {tv_sec=%lld, tv_nsec=%llu}) = 0\n",
  42                (long long) t.ts.tv_sec,
  43                zero_extend_signed_to_ull(t.ts.tv_nsec));
  44
  45         t.ts.tv_sec = 0xdeface1;
  46         t.ts.tv_nsec = 0xdeface2;
  47         rc = syscall(__NR_clock_settime, CLOCK_THREAD_CPUTIME_ID, &t.ts);
  48         printf("clock_settime(CLOCK_THREAD_CPUTIME_ID"
  49                ", {tv_sec=%lld, tv_nsec=%llu}) = %s\n",
  50                (long long) t.ts.tv_sec,
  51                zero_extend_signed_to_ull(t.ts.tv_nsec), sprintrc(rc));
  52
  53         t.ts.tv_sec = 0xdeadbeefU;
  54         t.ts.tv_nsec = 0xfacefeedU;
  55         rc = syscall(__NR_clock_settime, CLOCK_THREAD_CPUTIME_ID, &t.ts);
  56         printf("clock_settime(CLOCK_THREAD_CPUTIME_ID"
  57                ", {tv_sec=%lld, tv_nsec=%llu}) = %s\n",
  58                (long long) t.ts.tv_sec,
  59                zero_extend_signed_to_ull(t.ts.tv_nsec), sprintrc(rc));
  60
  61         t.ts.tv_sec = (time_t) 0xcafef00ddeadbeefLL;
  62         t.ts.tv_nsec = (long) 0xbadc0dedfacefeedLL;
  63         rc = syscall(__NR_clock_settime, CLOCK_THREAD_CPUTIME_ID, &t.ts);
  64         printf("clock_settime(CLOCK_THREAD_CPUTIME_ID"
  65                ", {tv_sec=%lld, tv_nsec=%llu}) = %s\n",
  66                (long long) t.ts.tv_sec,
  67                zero_extend_signed_to_ull(t.ts.tv_nsec), sprintrc(rc));
  68
  69         puts("+++ exited with 0 +++");
  70         return 0;
  71 }
  72
  73 #else
  74
  75 SKIP_MAIN_UNDEFINED("__NR_clock_getres && __NR_clock_gettime && __NR_clock_settime")
  76
  77 #endif