Mercurial > hg > Members > kaito > longjump

annotate global_longjump.c @ 0:dee9711aeb06

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the first commit
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Tue, 12 Nov 2013 11:32:39 +0900
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children e6aa3b678e4a
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dee9711aeb06 the first commit
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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1 #include <stdio.h>
dee9711aeb06 the first commit
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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2 #include <setjmp.h>
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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3 #include <stdlib.h>
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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4
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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5 int retval;
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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6 __code code1(int n,void *__return,void *__enviroment){
dee9711aeb06 the first commit
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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7 void(*ret)(int,void *);
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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8 printf("code1\n");
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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9 ret = (void(*)(int,void *))__return;
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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10 ret(n,__enviroment);
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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11 }
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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12
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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13 void *return1 (int n,void* env){
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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14 printf("return1\n");
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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15 retval = n;
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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16 longjmp(*(jmp_buf*)env,1);
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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17 }
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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18
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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19 int main1 (){
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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20 void *__return;
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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21 void *__enviroment;
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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22 printf("main1 entry\n");
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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23 __enviroment = (void*)malloc(sizeof(jmp_buf));
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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24 if (setjmp(__enviroment)){
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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25 free(__enviroment);
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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26 printf("main1 return\n");
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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27 return retval;
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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28 }
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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29 __return = (void*)return1;
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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30 goto code1(30,__return,__enviroment);
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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31 return 0;
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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32 }
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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33
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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34 int main (){
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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35 int n;
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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36 n = main1();
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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37 printf("returned\n");
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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38 printf("return = %d\n",n);
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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39 return 1;
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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40 }