https://git.ruby-lang.org/ruby.git/commit/?id=9c0cd5c569

From 9c0cd5c569ba22bc68d1a77ad6580a275cd99639 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@r...>
Date: Thu, 10 Oct 2019 19:38:37 +0900
Subject: Prefer rb_gc_register_mark_object

* ext/openssl/ossl_asn1.c (Init_ossl_asn1): prefer
  `rb_gc_register_mark_object`, which is better for constant
  objects, over `rb_gc_register_address` for global/static
  variables which can be re-assigned at runtime.  [Bug #16196]

diff --git a/ext/openssl/ossl_asn1.c b/ext/openssl/ossl_asn1.c
index e00c664..0085d4b 100644
--- a/ext/openssl/ossl_asn1.c
+++ b/ext/openssl/ossl_asn1.c
@@ -1823,8 +1823,8 @@ do{\ https://github.com/ruby/ruby/blob/trunk/ext/openssl/ossl_asn1.c#L1823
     rb_define_method(cASN1EndOfContent, "initialize", ossl_asn1eoc_initialize, 0);
     rb_define_method(cASN1EndOfContent, "to_der", ossl_asn1eoc_to_der, 0);
 
-    rb_global_variable(&class_tag_map);
     class_tag_map = rb_hash_new();
+    rb_gc_register_mark_object(class_tag_map);
     rb_hash_aset(class_tag_map, cASN1EndOfContent, INT2NUM(V_ASN1_EOC));
     rb_hash_aset(class_tag_map, cASN1Boolean, INT2NUM(V_ASN1_BOOLEAN));
     rb_hash_aset(class_tag_map, cASN1Integer, INT2NUM(V_ASN1_INTEGER));
-- 
cgit v0.10.2


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