merge revision(s) 64514: [Backport #14702]

	check trace flags at loading [Bug #14702]

	* iseq.c (iseq_init_trace): at ISeq loading time, we need to check
	  `ruby_vm_event_enabled_flags` to turn on trace instructions.
	  Seprate this checking code from `finish_iseq_build()` and make
	  new function. `iseq_ibf_load()` calls this funcation after loading.

	* test/ruby/test_iseq.rb: add a test for this fix.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_5@64997 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 0 deletions

diff --git a/iseq.h b/iseq.h
index 825d52bd84..1ef8ce452b 100644
--- a/iseq.h
+++ b/iseq.h
@@ -160,6 +160,7 @@ VALUE iseq_ibf_dump(const rb_iseq_t *iseq, VALUE opt);
 void ibf_load_iseq_complete(rb_iseq_t *iseq);
 const rb_iseq_t *iseq_ibf_load(VALUE str);
 VALUE iseq_ibf_load_extra_data(VALUE str);
+void iseq_init_trace(rb_iseq_t *iseq);
 
 RUBY_SYMBOL_EXPORT_BEGIN