mirror of
https://git.hardenedbsd.org/hardenedbsd/HardenedBSD.git
synced 2024-11-28 20:11:00 +01:00
4d846d260e
The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch up to that fact and revert to their recommended match of BSD-2-Clause. Discussed with: pfg MFC After: 3 days Sponsored by: Netflix
153 lines
3.6 KiB
Bash
Executable File
153 lines
3.6 KiB
Bash
Executable File
#!/bin/sh
|
|
|
|
#
|
|
# SPDX-License-Identifier: BSD-2-Clause
|
|
#
|
|
# Copyright (c) 2020 Peter Holm <pho@FreeBSD.org>
|
|
#
|
|
# 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.
|
|
#
|
|
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
|
|
#
|
|
|
|
# Test scenario for of non-transparent superpages.
|
|
|
|
# No problems seen.
|
|
|
|
. ../default.cfg
|
|
[ `uname -p` = "i386" ] && exit 0
|
|
[ -z "`sysctl -i vm.largepages`" ] && exit 0
|
|
|
|
odir=`pwd`
|
|
cd /tmp
|
|
sed '1,/^EOF/d' < $odir/$0 > largepage.c
|
|
mycc -o largepage -Wall -Wextra -g -O0 largepage.c || exit 1
|
|
rm -f largepage.c
|
|
cd $odir
|
|
|
|
/tmp/largepage
|
|
s=$?
|
|
|
|
for path in `posixshmcontrol ls | grep largepage | awk '{print $NF}'`; do
|
|
echo "posixshmcontrol rm $path"
|
|
posixshmcontrol rm $path
|
|
done
|
|
rm -f ./largepage /tmp/largepage.0* /tmp/largepage
|
|
exit 0
|
|
|
|
EOF
|
|
#include <sys/param.h>
|
|
#include <sys/mman.h>
|
|
#include <sys/wait.h>
|
|
|
|
#include <err.h>
|
|
#include <errno.h>
|
|
#include <fcntl.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <time.h>
|
|
#include <unistd.h>
|
|
|
|
static size_t ps[MAXPAGESIZES];
|
|
static int fd;
|
|
|
|
#define PARALLEL 4
|
|
#define RUNTIME 60
|
|
|
|
static void
|
|
work(int idx)
|
|
{
|
|
size_t len;
|
|
int i,r;
|
|
char *p;
|
|
volatile char val __unused;
|
|
char path[PATH_MAX];
|
|
|
|
len = ps[idx];
|
|
sprintf(path, "/tmp/largepage.%06d", getpid());
|
|
if ((fd = shm_create_largepage(path, O_CREAT | O_RDWR, idx,
|
|
SHM_LARGEPAGE_ALLOC_DEFAULT, 0600)) == -1)
|
|
err(1,"shm_create_largepage(%zu)", len);
|
|
|
|
for (i = 0; i < 100; i++) {
|
|
r = ftruncate(fd, len);
|
|
if (r == 0)
|
|
break;
|
|
usleep(200000);
|
|
}
|
|
if (r == -1) {
|
|
shm_unlink(path);
|
|
err(1, "ftruncate(%zu)", len);
|
|
}
|
|
close(fd);
|
|
if ((fd = shm_open(path, O_RDWR, 0)) == -1)
|
|
err(1, "shm_open()");
|
|
|
|
if ((p = mmap(NULL, len, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0)) ==
|
|
MAP_FAILED) {
|
|
if (errno == ENOMEM)
|
|
return;
|
|
err(1, "mmap()");
|
|
}
|
|
|
|
val = p[arc4random() % len];
|
|
|
|
close(fd);
|
|
if (munmap(p, len) == -1)
|
|
err(1, "munmap(%p)", p);
|
|
if (shm_unlink(path) == -1)
|
|
err(1, "shm_unlink()");
|
|
|
|
_exit(0);
|
|
}
|
|
|
|
int
|
|
main(void)
|
|
{
|
|
pid_t pids[PARALLEL];
|
|
time_t start;
|
|
int e, i, n, nps, status;
|
|
|
|
nps = getpagesizes(ps, MAXPAGESIZES);
|
|
e = 0;
|
|
n = 1;
|
|
start = time(NULL);
|
|
while (time(NULL) - start < RUNTIME && e == 0) {
|
|
for (i = 0; i < PARALLEL; i++) {
|
|
if ((pids[i] = fork()) == 0)
|
|
work(n);
|
|
}
|
|
|
|
for (i = 0; i < PARALLEL; i++) {
|
|
if (waitpid(pids[i], &status, 0) != pids[i])
|
|
err(1, "waitpid(%d)", pids[i]);
|
|
if (status != 0) e = 1;
|
|
}
|
|
n++;
|
|
n = n % nps;
|
|
if (n == 0) /* skip 4k pages */
|
|
n = 1;
|
|
}
|
|
close(fd);
|
|
|
|
return (e);
|
|
}
|