--- a/goal.c	Sun Jan 12 19:21:18 2014 +0900
+++ b/goal.c	Tue Jan 14 02:01:41 2014 +0900
@@ -1,36 +1,43 @@
-#include <stdio.h>
-#include <setjmp.h>
-#include <stdlib.h>
+int setjmp(int*);
+int longjmp(int*,int);
+int printf(const char*,...);
 
-__attribute__((noinline))
-__code code1(void *__return,void *__enviroment){
-    void(*ret)(void *);
-    printf("code1\n");
-    ret = (void(*)(void *))__return;
-    ret(__enviroment);
+struct CbC_env {
+  void *ret_p,*env;
+};
+
+__code code1(int n,__code(*__return)(int,void *),void *__environment){
+  printf("code1 : code entry1\n");
+  goto __return(n,__environment);
 }
 
-void *return1 (void* env){
-    printf("return1\n");
-    longjmp(*(jmp_buf*)env,1);
+__code return1 (int n,void* env){
+  printf("return1 : __return entry\n");
+  *(int*)((struct CbC_env *)(env))->ret_p = n;
+  longjmp((int*)(((struct CbC_env *)env)->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 main1 (){
+  __code (*__return)();
+  struct CbC_env __environment;
+  int i_buf[128];
+  int retval;
+  __environment.ret_p = &retval;
+  __environment.env = &i_buf;
+  printf("main1 : main1 entry\n");
+  if (setjmp(__environment.env)){
+    printf("main1 : main1 return\n");
+    return *((int *)__environment.ret_p);
+  }
+  __return = return1;
+  goto code1(30,__return,&__environment);
+  return 0;
 }
 
 int main (){
-    main1();
-    printf("returned\n");
-    return 1;
+  int n;
+  n = main1();
+  printf("returned\n");
+  printf("return = %d\n",n);
+  return 1;
 }

--- a/struct_longjump.c	Sun Jan 12 19:21:18 2014 +0900
+++ b/struct_longjump.c	Tue Jan 14 02:01:41 2014 +0900
@@ -2,11 +2,11 @@
 
 __code code1(int n,__code(*exit___code)(int,void *),void *exit_env){
   printf("code1 : code entry1\n");
-  goto exit___code(n,exit_env);
+  double aua;
+  goto 1;
+  //  goto exit___code(n,exit_env);
 }
 
-double aua;
-
 int main1 (){
   printf("main1 : main1 entry\n");
   goto code1(30,__return,__environment);