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-rw-r--r--vm_trace.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/vm_trace.c b/vm_trace.c
index 2adadff178..b2b859e2a3 100644
--- a/vm_trace.c
+++ b/vm_trace.c
@@ -65,14 +65,15 @@ static void
update_global_event_hook(rb_event_flag_t vm_events)
{
rb_event_flag_t new_iseq_events = vm_events & ISEQ_TRACE_EVENTS;
- rb_event_flag_t cur_iseq_events = ruby_vm_event_flags & ISEQ_TRACE_EVENTS;
+ rb_event_flag_t enabled_iseq_events = ruby_vm_event_enabled_flags & ISEQ_TRACE_EVENTS;
- if (new_iseq_events > cur_iseq_events) {
+ if (new_iseq_events & ~enabled_iseq_events) {
/* write all ISeqs iff new events are added */
- rb_iseq_trace_set_all(new_iseq_events);
+ rb_iseq_trace_set_all(new_iseq_events | enabled_iseq_events);
}
ruby_vm_event_flags = vm_events;
+ ruby_vm_event_enabled_flags |= vm_events;
rb_objspace_set_event_hook(vm_events);
}