blob: 46542622ea9091acfbd46ce3c7d6d11755999484 [file] [log] [blame]
/*
* Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "tests.h"
#include <stdio.h>
#include <stdint.h>
#include <unistd.h>
#include <limits.h>
#include <sys/mman.h>
int
main(void)
{
const intmax_t pagesize = get_page_size();
const unsigned long length = pagesize * 3;
const int fd = -1;
off_t offset;
void *addr, *p;
#if ULONG_MAX > 4294967295UL
offset = 0xcafedeadbeef000 & -pagesize;
addr = (void *) (uintmax_t) (0xfacefeed000 & -pagesize);
#else
offset = 0xdeadbeef000 & -pagesize;
addr = (void *) (unsigned int) (0xfaced000 & -pagesize);
#endif
p = mmap(addr, length, PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANONYMOUS, fd, offset);
if (MAP_FAILED == p)
perror_msg_and_fail("mmap");
if (mprotect(p, length, PROT_NONE))
perror_msg_and_fail("mprotect");
if (munmap(p, length))
perror_msg_and_fail("munmap");
if (sizeof(offset) == sizeof(int))
printf("mmap2?\\(%p, %lu, PROT_READ\\|PROT_WRITE, "
"MAP_PRIVATE\\|MAP_ANONYMOUS, %d, %#x\\) = %p\n",
addr, length, fd, (unsigned int) offset, p);
else
printf("(mmap2?|old_mmap)\\(%p, %lu, PROT_READ\\|PROT_WRITE, "
"MAP_PRIVATE\\|MAP_ANONYMOUS, %d, %#jx\\) = %p\n",
addr, length, fd, (uintmax_t) offset, p);
printf("mprotect\\(%p, %lu, PROT_NONE\\) += 0\n", p, length);
printf("munmap\\(%p, %lu\\) += 0\n", p, length);
return 0;
}