strace/tests/waitpid.c

37 lines
671 B
C

/*
* Check decoding of waitpid syscall.
*
* Copyright (c) 2016-2018 Dmitry V. Levin <ldv@altlinux.org>
* All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "tests.h"
#include <asm/unistd.h>
#ifdef __NR_waitpid
# include <stdio.h>
# include <unistd.h>
# include <sys/wait.h>
int
main(void)
{
unsigned long pid =
(unsigned long) 0xdefaced00000000ULL | (unsigned) getpid();
long rc = syscall(__NR_waitpid, pid, 0L, (unsigned long) WNOHANG);
printf("waitpid(%d, NULL, WNOHANG) = %ld %s (%m)\n",
(int) pid, rc, errno2name());
puts("+++ exited with 0 +++");
return 0;
}
#else
SKIP_MAIN_UNDEFINED("__NR_waitpid")
#endif