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/* Copyright (C) 2009 Pierre-Marc Fournier
*
* This library 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.
*
* This library 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 this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include <stdlib.h>
#include <ust/marker.h>
int main(int argc, char **argv, char *env[])
{
int result;
if(argc < 2 ) {
fprintf(stderr, "usage: fork PROG_TO_EXEC\n");
exit(1);
}
printf("Fork test program, parent pid is %d\n", getpid());
trace_mark(ust, before_fork, MARK_NOARGS);
result = fork();
if(result == -1) {
perror("fork");
return 1;
}
if(result == 0) {
char *args[] = {"fork2", NULL};
printf("Child pid is %d\n", getpid());
trace_mark(ust, after_fork_child, MARK_NOARGS);
trace_mark(ust, before_exec, "pid %d", getpid());
result = execve(argv[1], args, env);
if(result == -1) {
perror("execve");
return 1;
}
trace_mark(ust, after_exec, "pid %d", getpid());
}
else {
trace_mark(ust, after_fork_parent, MARK_NOARGS);
}
return 0;
}
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