diff options
| author | ko1 <ko1@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2017-12-11 19:17:25 +0000 |
|---|---|---|
| committer | ko1 <ko1@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2017-12-11 19:17:25 +0000 |
| commit | 975e3a19a7ef725f6358d74f5bf7fd20d4403587 (patch) | |
| tree | 22303ef0f4a2fc40fec963f9ffe68f244211fd15 /vm_trace.c | |
| parent | 9e9498c227085d8b999799843aa2d388b19653a6 (diff) | |
do not disable `trace_` prefix insns.
* vm.c: introduce `ruby_vm_event_enabled_flags` which represents which
event flags are enabled before.
* vm_trace.c: do not turn off `trace_` prefix instructions because turn on
overhead is a matter if a program repeats turn on and turn off frequently.
* iseq.c (finish_iseq_build): respect `ruby_vm_event_enabled_flags`.
* vm_insnhelper.c (vm_trace): check `ruby_vm_event_flags` and disable
lazy trace-off technique (do not disable traces).
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61122 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'vm_trace.c')
| -rw-r--r-- | vm_trace.c | 7 |
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); } |