82 lines
2.6 KiB
C
82 lines
2.6 KiB
C
/*
|
|
* Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
|
|
* Copyright (c) 2016-2017 The strace developers.
|
|
* 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 <sys/mman.h>
|
|
|
|
static void
|
|
print_mincore(const unsigned int pages, void *const addr,
|
|
const size_t size, unsigned char *const vec)
|
|
{
|
|
unsigned int i;
|
|
|
|
if (mincore(addr, size, vec))
|
|
perror_msg_and_skip("mincore");
|
|
|
|
printf("mincore(%p, %zu, [", addr, size);
|
|
for (i = 0; i < pages; ++i) {
|
|
if (i)
|
|
printf(", ");
|
|
if (i >= DEFAULT_STRLEN) {
|
|
printf("...");
|
|
break;
|
|
}
|
|
printf("%u", vec[i] & 1);
|
|
}
|
|
puts("]) = 0");
|
|
}
|
|
|
|
static void
|
|
test_mincore(const unsigned int pages)
|
|
{
|
|
const size_t page_size = get_page_size();
|
|
const size_t size = pages * page_size;
|
|
void *const addr = tail_alloc(size);
|
|
unsigned char *const vec = tail_alloc(pages);
|
|
|
|
mincore(addr, size, NULL);
|
|
printf("mincore(%p, %zu, NULL) = -1 %s (%m)\n",
|
|
addr, size, errno2name());
|
|
|
|
print_mincore(pages, addr, size, vec);
|
|
if (size)
|
|
print_mincore(pages, addr, size - page_size + 1, vec);
|
|
}
|
|
|
|
int main(void)
|
|
{
|
|
test_mincore(1);
|
|
test_mincore(2);
|
|
test_mincore(DEFAULT_STRLEN);
|
|
test_mincore(DEFAULT_STRLEN + 1);
|
|
|
|
puts("+++ exited with 0 +++");
|
|
return 0;
|
|
}
|