From 11c37ed390478393b0ba9b7afd41c92aae27ae05 Mon Sep 17 00:00:00 2001
From: shugo <shugo@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Sat, 5 Nov 2016 16:42:27 +0000
Subject: * compile.c (tailcallable_p): disable tail call optimization for  
 toplevel, eval, and load to avoid SEGV when interrupted by SIGINT.  
 [ruby-core:76327] [Bug #12576]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56610 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 compile.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'compile.c')

diff --git a/compile.c b/compile.c
index bdeb7fdac2..b113b08df4 100644
--- a/compile.c
+++ b/compile.c
@@ -2423,6 +2423,10 @@ static inline int
 tailcallable_p(rb_iseq_t *iseq)
 {
     switch (iseq->body->type) {
+      case ISEQ_TYPE_TOP:
+      case ISEQ_TYPE_EVAL:
+      case ISEQ_TYPE_MAIN:
+	/* not tail callable because cfp will be over popped */
       case ISEQ_TYPE_RESCUE:
       case ISEQ_TYPE_ENSURE:
 	/* rescue block can't tail call because of errinfo */
-- 
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