githubmirror/strace

tests/mlock.c

38 строк663 B

Dmitry V. Levin

Update copyright headers

17 июл 2021, 11:00

17 июл 2021, 11:0081e1975

/*
 * Check decoding of mlock and munlock syscalls.
 *
 * Copyright (c) 2016-2021 The strace developers.
 * All rights reserved.
 *
 * SPDX-License-Identifier: GPL-2.0-or-later
 */

#include "tests.h"
#include "scno.h"

#ifdef __NR_mlock

# include <stdio.h>
# include <unistd.h>

int
main(void)
{
	const int size = 1024;
	const char *addr = tail_alloc(size);

	long rc = syscall(__NR_mlock, addr, size);
	printf("mlock(%p, %d) = %s\n", addr, size, sprintrc(rc));

	rc = syscall(__NR_munlock, addr, size);
	printf("munlock(%p, %d) = %s\n", addr, size, sprintrc(rc));

	puts("+++ exited with 0 +++");
	return 0;
}

#else

SKIP_MAIN_UNDEFINED("__NR_mlock")

#endif