From 002e0ca4280f757bdf30f20c5ed88220059af234 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Mon, 5 Nov 2018 02:25:46 +0000
Subject: [PATCH] Create MJIT header with strict permission

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65544 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 tool/transform_mjit_header.rb | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/tool/transform_mjit_header.rb b/tool/transform_mjit_header.rb
index 4784a47299..91e4a971d2 100644
--- a/tool/transform_mjit_header.rb
+++ b/tool/transform_mjit_header.rb
@@ -148,8 +148,10 @@ module MJITHeader
   end
 
   def self.write(code, out)
-    FileUtils.mkdir_p(File.dirname(out))
-    File.binwrite("#{out}.new", code)
+    # create with strict permission, then will install proper
+    # permmsion
+    FileUtils.mkdir_p(File.dirname(out), mode: 0700)
+    File.binwrite("#{out}.new", code, perm: 0600)
     FileUtils.mv("#{out}.new", out)
   end