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130 lines
3 KiB
Bash
Executable file
130 lines
3 KiB
Bash
Executable file
#!/bin/sh
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#
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# Copyright (c) 2015 EMC Corp.
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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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# Test of execve(2) from a threaded program.
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# "load: 5.40 cmd: bash 24517 [vmmaps] 2.45r 0.00u 0.00s 0% 3448k" seen.
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# Fixed by r282708.
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. ../default.cfg
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here=`pwd`
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cd /tmp
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sed '1,/^EOF/d' < $here/$0 > execve.c
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mycc -o execve -Wall -Wextra -O2 execve.c -lpthread || exit 1
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rm -f execve.c
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daemon sh -c "(cd $here/../testcases/swap; ./swap -t 20m -i 20 -l 100)" > \
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/dev/null 2>&1
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sleep `jot -r 1 1 9`
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for i in `jot 2`; do
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/tmp/execve
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done
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while pgrep -q swap; do
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pkill -9 swap
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done
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rm -f /tmp/execve /tmp/execve.core
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exit 0
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EOF
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#include <sys/types.h>
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#include <sys/resource.h>
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#include <sys/stat.h>
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#include <sys/wait.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <pthread.h>
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#include <sched.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#define LOOPS 50
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#define PARALLEL 50
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volatile int go;
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void *
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texecve(void *arg __unused)
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{
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char *cmdline[] = { "/usr/bin/true", NULL };
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while (go == 0)
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usleep(100);
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if (execve(cmdline[0], cmdline, NULL) == -1)
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err(1, "execve");
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return (NULL);
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}
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void
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test(void)
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{
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pthread_t tid[5];
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int i, rc;
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go = 0;
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for (i = 0; i < 5; i++) {
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if ((rc = pthread_create(&tid[i], NULL, texecve, NULL)) != 0)
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errc(1, rc, "texecve()");
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}
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usleep(arc4random() % 2000);
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go = 1;
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for (i = 0; i < 5; 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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_exit(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 rlimit rl;
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int i, j;
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rl.rlim_max = rl.rlim_cur = 0;
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if (setrlimit(RLIMIT_CORE, &rl) == -1)
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warn("setrlimit");
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for (i = 0; i < LOOPS; i++) {
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for (j = 0; j < PARALLEL; j++) {
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if (fork() == 0)
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test();
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}
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for (j = 0; j < PARALLEL; j++)
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wait(NULL);
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}
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return (0);
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}
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