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/* Systemtap test case
* Copyright (C) 2010, Red Hat Inc.
*
* This file is part of systemtap, and is free software. You can
* redistribute it and/or modify it under the terms of the GNU General
* Public License (GPL); either version 2, or (at your option) any
* later version.
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <sched.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/wait.h>
#include "dtrace_vfork_parent_probes.h"
#if !defined(USE_SEMAPHORES)
#undef PARENT_MAIN_ENABLED
#define PARENT_MAIN_ENABLED() (1)
#undef PARENT_CHILD_PID_ENABLED
#define PARENT_CHILD_PID_ENABLED() (1)
#undef PARENT_FINISHED_ENABLED
#define PARENT_FINISHED_ENABLED() (1)
#endif
int
main(int argc, char **argv)
{
int pid;
int rc = 0;
char *child_argv[] = { argv[1], NULL };
/* Create the child. */
if (PARENT_MAIN_ENABLED()) {
PARENT_MAIN(getpid());
}
pid = vfork();
if (pid == 0) { /* child */
rc = execve(argv[1], child_argv, NULL);
_exit(rc);
}
if (PARENT_CHILD_PID_ENABLED()) {
PARENT_CHILD_PID(pid);
}
if (pid < 0) {
/* error */
perror("fork failed:");
rc = -1;
}
else {
int status;
waitpid(pid, &status, 0);
rc = WEXITSTATUS(status);
}
if (PARENT_FINISHED_ENABLED()) {
PARENT_FINISHED();
}
return rc;
}
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