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/*
* Check decoding of clock_nanosleep and clock_gettime syscalls.
*
* Copyright (c) 2015-2016 Dmitry V. Levin <ldv@strace.io>
* Copyright (c) 2015-2023 The strace developers.
* All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "tests.h"
#include "scno.h"
#ifdef __NR_clock_nanosleep
# include <assert.h>
# include <stdio.h>
# include <stdint.h>
# include <signal.h>
# include <time.h>
# include <unistd.h>
# include <sys/time.h>
static void
handler(int signo)
{
}
int
main(void)
{
struct {
kernel_old_timespec_t ts;
uint32_t pad[2];
} req = {
.ts.tv_nsec = 0xc0de1,
.pad = { 0xdeadbeef, 0xbadc0ded }
}, rem = {
.ts = { .tv_sec = 0xc0de2, .tv_nsec = 0xc0de3 },
.pad = { 0xdeadbeef, 0xbadc0ded }
};
const sigset_t set = {};
const struct sigaction act = { .sa_handler = handler };
const struct itimerval itv = {
.it_interval.tv_usec = 222222,
.it_value.tv_usec = 111111
};
if (syscall(__NR_clock_nanosleep, CLOCK_REALTIME, 0, &req.ts, NULL))
perror_msg_and_skip("clock_nanosleep CLOCK_REALTIME");
printf("clock_nanosleep(CLOCK_REALTIME, 0"
", {tv_sec=%lld, tv_nsec=%llu}, NULL) = 0\n",
(long long) req.ts.tv_sec,
zero_extend_signed_to_ull(req.ts.tv_nsec));
assert(syscall(__NR_clock_nanosleep, CLOCK_REALTIME, 0,
NULL, &rem.ts) == -1);
printf("clock_nanosleep(CLOCK_REALTIME, 0, NULL, %p)"
RVAL_EFAULT, &rem.ts);
assert(syscall(__NR_clock_nanosleep, CLOCK_REALTIME, 0,
&req.ts, &rem.ts) == 0);
printf("clock_nanosleep(CLOCK_REALTIME, 0"
", {tv_sec=%lld, tv_nsec=%llu}, %p) = 0\n",
(long long) req.ts.tv_sec,
zero_extend_signed_to_ull(req.ts.tv_nsec), &rem.ts);
req.ts.tv_nsec = 999999999 + 1;
assert(syscall(__NR_clock_nanosleep, CLOCK_MONOTONIC, 0,
&req.ts, &rem.ts) == -1);
printf("clock_nanosleep(CLOCK_MONOTONIC, 0"
", {tv_sec=%lld, tv_nsec=%llu}, %p)" RVAL_EINVAL,
(long long) req.ts.tv_sec,
zero_extend_signed_to_ull(req.ts.tv_nsec), &rem.ts);
req.ts.tv_sec = 0xdeadbeefU;
req.ts.tv_nsec = 0xfacefeedU;
assert(syscall(__NR_clock_nanosleep, CLOCK_REALTIME, 0,
&req.ts, &rem.ts) == -1);
printf("clock_nanosleep(CLOCK_REALTIME, 0"
", {tv_sec=%lld, tv_nsec=%llu}, %p)" RVAL_EINVAL,
(long long) req.ts.tv_sec,
zero_extend_signed_to_ull(req.ts.tv_nsec), &rem.ts);
req.ts.tv_sec = (typeof(req.ts.tv_sec)) 0xcafef00ddeadbeefLL;
req.ts.tv_nsec = (long) 0xbadc0dedfacefeedLL;
assert(syscall(__NR_clock_nanosleep, CLOCK_MONOTONIC, 0,
&req.ts, &rem.ts) == -1);
printf("clock_nanosleep(CLOCK_MONOTONIC, 0"
", {tv_sec=%lld, tv_nsec=%llu}, %p)" RVAL_EINVAL,
(long long) req.ts.tv_sec,
zero_extend_signed_to_ull(req.ts.tv_nsec), &rem.ts);
assert(sigaction(SIGALRM, &act, NULL) == 0);
assert(sigprocmask(SIG_SETMASK, &set, NULL) == 0);
if (setitimer(ITIMER_REAL, &itv, NULL))
perror_msg_and_skip("setitimer");
req.ts.tv_sec = 0;
req.ts.tv_nsec = 999999999;
assert(syscall(__NR_clock_nanosleep, CLOCK_REALTIME, 0,
&req.ts, &rem.ts) == -1);
printf("clock_nanosleep(CLOCK_REALTIME, 0"
", {tv_sec=%lld, tv_nsec=%llu}, {tv_sec=%lld, tv_nsec=%llu})"
" = ? ERESTART_RESTARTBLOCK (Interrupted by signal)\n",
(long long) req.ts.tv_sec,
zero_extend_signed_to_ull(req.ts.tv_nsec),
(long long) rem.ts.tv_sec,
zero_extend_signed_to_ull(rem.ts.tv_nsec));
puts("--- SIGALRM {si_signo=SIGALRM, si_code=SI_KERNEL} ---");
assert(syscall(__NR_clock_gettime, CLOCK_REALTIME, &req.ts) == 0);
printf("clock_gettime(CLOCK_REALTIME, {tv_sec=%lld, tv_nsec=%llu}) = 0\n",
(long long) req.ts.tv_sec,
zero_extend_signed_to_ull(req.ts.tv_nsec));
/* If time_t is 32 bit, it is no longer possible to represent post-2038 times
* via the clock_nanosleep syscall so we should simply stop and exit.
* It is not a failure. */
if (sizeof(req.ts.tv_sec) < 8)
goto exit;
++req.ts.tv_sec;
rem.ts.tv_sec = 0xc0de4;
rem.ts.tv_nsec = 0xc0de5;
assert(syscall(__NR_clock_nanosleep, CLOCK_REALTIME, TIMER_ABSTIME,
&req.ts, &rem.ts) == -1);
printf("clock_nanosleep(CLOCK_REALTIME, TIMER_ABSTIME"
", {tv_sec=%lld, tv_nsec=%llu}, %p)"
" = ? ERESTARTNOHAND (To be restarted if no handler)\n",
(long long) req.ts.tv_sec,
zero_extend_signed_to_ull(req.ts.tv_nsec), &rem.ts);
puts("--- SIGALRM {si_signo=SIGALRM, si_code=SI_KERNEL} ---");
exit:
puts("+++ exited with 0 +++");
return 0;
}
#else
SKIP_MAIN_UNDEFINED("__NR_clock_nanosleep")
#endif
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