Mercurial > hg > CbC > CbC_examples

changeset 25:6324b8df04f1

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lj_as2: fix segmentation fault
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Sun, 31 Jan 2016 21:44:55 +0900
parents 19160c497905
children 1db97badc4e0
files ljtes/ljtes_as2.c
diffstat 1 files changed, 2 insertions(+), 2 deletions(-) [+]
line wrap: on
line diff
--- a/ljtes/ljtes_as2.c	Sun Jan 31 19:37:36 2016 +0900
+++ b/ljtes/ljtes_as2.c	Sun Jan 31 21:44:55 2016 +0900
@@ -11,7 +11,6 @@
 };
 
 int save_env(void *env);
-
 __code factorial(int n,int result,int orig,__code(*print)(int,int,int,__code(*)(),void*), void *exit1env)
 {
     if (n<0) {
@@ -58,6 +57,7 @@
 }
 
 int save_env(void *env){
+  volatile int retval = 0;
   asm volatile(
                "movq %%rbp,(%%rdi);" // env.env[1] = %rbp; frame pointer
                "movq (%%rsp), %%rax;" // get return addres
@@ -67,7 +67,7 @@
                "movl $0, %%eax;" // set return value
                "jmpq *0x8(%%rdi);" // return
                :"+D"(env)::"rax");
-  return 0;
+  return retval;
 }
 
 __code return_cs(int val, void* env){