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124 lines
3.1 KiB
Bash
Executable file
124 lines
3.1 KiB
Bash
Executable file
#!/bin/sh
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#
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# Copyright (c) 2017 Dell EMC Isilon
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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# pmc fuzz test
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. ../default.cfg
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kldstat -v | grep -q hwpmc || { kldload hwpmc; loaded=1; }
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dir=/tmp
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odir=`pwd`
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cd $dir
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sed '1,/^EOF/d' < $odir/$0 > $dir/pmc4.c
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mycc -o pmc4 -Wall -Wextra -O0 -g pmc4.c -lpmc -lpthread || exit 0
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rm -f pmc4.c
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for i in `jot 100`; do
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./pmc4
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done > /dev/null 2>&1
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rm -rf pmc4 pmc4.core
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[ $loaded ] && kldunload hwpmc
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exit 0
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EOF
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#include <sys/param.h>
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#include <sys/event.h>
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#include <err.h>
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#include <pmc.h>
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#include <pmclog.h>
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#include <pthread.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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static int fd1[2];
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static int kq;
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#define THREADS 20
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static void *
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test(void *arg __unused)
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{
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void *rfd;
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char *cmdline[] = { "/usr/bin/true", NULL };
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if ((rfd = pmclog_open(kq)) == NULL)
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err(1, "pmclog_open(%d)", kq);
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if (pmc_configure_logfile(kq) < 0)
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err(1, "ERROR: Cannot configure log file");
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sleep(1);
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usleep(arc4random() % 20000);
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if (execve(cmdline[0], cmdline, NULL) == -1)
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err(1, "execve");
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return (0);
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}
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int
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main(void)
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{
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struct kevent ev[3];
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pthread_t tid[THREADS];
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int i, n, rc;
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if (pmc_init() == -1)
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err(1, "pmc_init");
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if (pipe(fd1) == -1)
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err(1, "pipe()");
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if ((kq = kqueue()) < 0)
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err(1, "kqueue(). %s:%d", __FILE__, __LINE__);
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n = 0;
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EV_SET(&ev[n], fd1[1], EVFILT_WRITE,
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EV_ADD | EV_ENABLE | EV_CLEAR, 0, 0, 0);
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n++;
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if (kevent(kq, ev, n, NULL, 0, NULL) < 0)
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err(1, "kevent(). %s:%d", __FILE__, __LINE__);
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n = 0;
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EV_SET(&ev[n], fd1[1], EVFILT_WRITE,
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EV_DELETE, 0, 0, 0);
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n++;
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if (kevent(kq, ev, n, NULL, 0, NULL) < 0)
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warn("kevent(). %s:%d", __FILE__, __LINE__);
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for (i = 0; i < THREADS; i++) {
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if ((rc = pthread_create(&tid[i], NULL, test, NULL)) != 0)
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errc(1, rc, "test()");
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}
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for (i = 0; i < THREADS; i++) {
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if ((rc = pthread_join(tid[i], NULL)) != 0)
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errc(1, rc, "pthread_join(%d)", i);
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}
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return (0);
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}
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