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/*
* libhugetlbfs - Easy use of Linux hugepages
* Copyright (C) 2005-2006 David Gibson & Adam Litke, IBM Corporation.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/mman.h>
#include <hugetlbfs.h>
#include "hugetests.h"
#define RANDOM_CONSTANT 0x1234ABCD
int main(int argc, char *argv[])
{
long hpage_size;
int fd;
void *p;
unsigned int *q;
int i;
test_init(argc, argv);
hpage_size = check_hugepagesize();
fd = hugetlbfs_unlinked_fd();
if (fd < 0)
FAIL("hugetlbfs_unlinked_fd()");
p = mmap(NULL, hpage_size, PROT_READ|PROT_WRITE, MAP_SHARED,
fd, 0);
if (p == MAP_FAILED)
FAIL("mmap(): %s", strerror(errno));
q = p;
for (i = 0; i < (hpage_size / sizeof(*q)); i++) {
q[i] = RANDOM_CONSTANT ^ i;
}
for (i = 0; i < (hpage_size / sizeof(*q)); i++) {
if (q[i] != (RANDOM_CONSTANT ^ i))
FAIL("Mismatch at offset 0x%x: 0x%x instead of 0x%x",
i, q[i], RANDOM_CONSTANT ^ i);
}
PASS();
}
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