mirror of
https://github.com/systemd/systemd.git
synced 2024-11-07 01:27:11 +03:00
65 lines
1.9 KiB
C
65 lines
1.9 KiB
C
/***
|
|
This file is part of systemd.
|
|
|
|
Copyright 2014 Lennart Poettering
|
|
|
|
systemd 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.
|
|
|
|
systemd 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 systemd; If not, see <http://www.gnu.org/licenses/>.
|
|
***/
|
|
|
|
#include <sys/mman.h>
|
|
|
|
#include "fd-util.h"
|
|
#include "sigbus.h"
|
|
#include "util.h"
|
|
|
|
int main(int argc, char *argv[]) {
|
|
_cleanup_close_ int fd = -1;
|
|
char template[] = "/tmp/sigbus-test-XXXXXX";
|
|
void *addr = NULL;
|
|
uint8_t *p;
|
|
|
|
#ifdef __SANITIZE_ADDRESS__
|
|
return EXIT_TEST_SKIP;
|
|
#endif
|
|
sigbus_install();
|
|
|
|
assert_se(sigbus_pop(&addr) == 0);
|
|
|
|
assert_se((fd = mkostemp(template, O_RDWR|O_CREAT|O_EXCL)) >= 0);
|
|
assert_se(unlink(template) >= 0);
|
|
assert_se(fallocate(fd, 0, 0, page_size() * 8) >= 0);
|
|
|
|
p = mmap(NULL, page_size() * 16, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
|
|
assert_se(p != MAP_FAILED);
|
|
|
|
assert_se(sigbus_pop(&addr) == 0);
|
|
|
|
p[0] = 0xFF;
|
|
assert_se(sigbus_pop(&addr) == 0);
|
|
|
|
p[page_size()] = 0xFF;
|
|
assert_se(sigbus_pop(&addr) == 0);
|
|
|
|
p[page_size()*8] = 0xFF;
|
|
p[page_size()*8+1] = 0xFF;
|
|
p[page_size()*10] = 0xFF;
|
|
assert_se(sigbus_pop(&addr) > 0);
|
|
assert_se(addr == p + page_size() * 8);
|
|
assert_se(sigbus_pop(&addr) > 0);
|
|
assert_se(addr == p + page_size() * 10);
|
|
assert_se(sigbus_pop(&addr) == 0);
|
|
|
|
sigbus_reset();
|
|
}
|