From: Pierre-Marc Fournier <pierre-marc.fournier@polymtl.ca>
Date: Tue, 13 Oct 2009 23:12:45 +0000 (-0400)
Subject: tests/fork: updates
X-Git-Tag: v1.9.1~862
X-Git-Url: https://git.lttng.org./?a=commitdiff_plain;h=cab681366d2cf9039b3cfb8b8ce97ddaf6b5ba53;p=lttng-ust.git

tests/fork: updates
---

diff --git a/tests/fork/fork.c b/tests/fork/fork.c
index 20a08779..677261b1 100644
--- a/tests/fork/fork.c
+++ b/tests/fork/fork.c
@@ -1,17 +1,21 @@
 #include <stdio.h>
 #include <unistd.h>
+#include <sys/types.h>
 
 #include "marker.h"
 
 
-int main()
+int main(int argc, char **argv, char *env[])
 {
 	int result;
 
-	printf("Fork test program\n");
-	trace_mark(ust, before_fork, MARK_NOARGS);
+	if(argc < 2 ) {
+		fprintf(stderr, "usage: fork PROG_TO_EXEC\n");
+		exit(1);
+	}
 
-	sleep(5);
+	printf("Fork test program, parent pid is %d\n", getpid());
+	trace_mark(ust, before_fork, MARK_NOARGS);
 
 	result = fork();
 	if(result == -1) {
@@ -19,7 +23,21 @@ int main()
 		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);