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/*
* SPDX-FileCopyrightText: 2009 Pierre-Marc Fournier
* SPDX-FileCopyrightText: 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
*
* SPDX-License-Identifier: LGPL-2.1-only
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>
#define TRACEPOINT_DEFINE
#define TRACEPOINT_CREATE_PROBES
#include "ust_tests_fork.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("parent_pid %d\n", getpid());
tracepoint(ust_tests_fork, before_fork, getpid());
result = fork();
if (result == -1) {
perror("fork");
return 1;
}
if (result == 0) {
char *args[] = { (char *) "fork2", NULL };
tracepoint(ust_tests_fork, after_fork_child, getpid());
result = execve(argv[1], args, env);
if (result == -1) {
perror("execve");
result = 1;
goto end;
}
} else {
printf("child_pid %d\n", result);
tracepoint(ust_tests_fork, after_fork_parent, getpid());
if (waitpid(result, NULL, 0) < 0) {
perror("waitpid");
result = 1;
goto end;
}
}
result = 0;
end:
return result;
}
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