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volatile locals in bootstrap evaluator

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* libguile/eval.c (eval): For SCM_M_PROMPT, mark the locals needed after
  a longjmp as volatile.  Perhaps related to bug 32340.
This commit is contained in:
Andy Wingo 2011-02-10 10:40:57 +01:00
parent cd4f274c62
commit 7112a34d56
1 changed files with 4 additions and 1 deletions
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5
libguile/eval.c
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@ -408,7 +408,10 @@ eval (SCM x, SCM env)
case SCM_M_PROMPT: case SCM_M_PROMPT:
{ {
SCM vm, prompt, handler, res; SCM vm, res;
/* We need the prompt and handler values after a longjmp case,
so make sure they are volatile. */
volatile SCM handler, prompt;
vm = scm_the_vm (); vm = scm_the_vm ();
prompt = scm_c_make_prompt (eval (CAR (mx), env), SCM_VM_DATA (vm)->fp, prompt = scm_c_make_prompt (eval (CAR (mx), env), SCM_VM_DATA (vm)->fp,