--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/goal.c	Sun Jan 12 19:21:18 2014 +0900
@@ -0,0 +1,36 @@
+#include <stdio.h>
+#include <setjmp.h>
+#include <stdlib.h>
+
+__attribute__((noinline))
+__code code1(void *__return,void *__enviroment){
+    void(*ret)(void *);
+    printf("code1\n");
+    ret = (void(*)(void *))__return;
+    ret(__enviroment);
+}
+
+void *return1 (void* env){
+    printf("return1\n");
+    longjmp(*(jmp_buf*)env,1);
+}
+
+void main1 (){
+    void *__return;
+    void *__enviroment;
+    printf("main1 entry\n");
+    __enviroment = (void*)malloc(sizeof(jmp_buf));
+    if (setjmp(__enviroment)){
+        free(__enviroment);
+        printf("main1 return\n");
+        return;
+    }
+    __return = (void*)return1;
+    goto code1(__return,__enviroment);
+}
+
+int main (){
+    main1();
+    printf("returned\n");
+    return 1;
+}