diff options
Diffstat (limited to 'deps/v8/src/execution/protectors.cc')
| -rw-r--r-- | deps/v8/src/execution/protectors.cc | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/deps/v8/src/execution/protectors.cc b/deps/v8/src/execution/protectors.cc index 3ac07eede3..b5b4c47a1b 100644 --- a/deps/v8/src/execution/protectors.cc +++ b/deps/v8/src/execution/protectors.cc @@ -16,12 +16,32 @@ namespace v8 { namespace internal { +namespace { +void TraceProtectorInvalidation(const char* protector_name) { + DCHECK(FLAG_trace_protector_invalidation); + static constexpr char kInvalidateProtectorTracingCategory[] = + "V8.InvalidateProtector"; + static constexpr char kInvalidateProtectorTracingArg[] = "protector-name"; + + DCHECK(FLAG_trace_protector_invalidation); + + // TODO(jgruber): Remove the PrintF once tracing can output to stdout. + i::PrintF("Invalidating protector cell %s", protector_name); + TRACE_EVENT_INSTANT1("v8", kInvalidateProtectorTracingCategory, + TRACE_EVENT_SCOPE_THREAD, kInvalidateProtectorTracingArg, + protector_name); +} +} // namespace + #define INVALIDATE_PROTECTOR_ON_NATIVE_CONTEXT_DEFINITION(name, cell) \ void Protectors::Invalidate##name(Isolate* isolate, \ Handle<NativeContext> native_context) { \ DCHECK_EQ(*native_context, isolate->raw_native_context()); \ DCHECK(native_context->cell().value().IsSmi()); \ DCHECK(Is##name##Intact(native_context)); \ + if (FLAG_trace_protector_invalidation) { \ + TraceProtectorInvalidation(#name); \ + } \ Handle<PropertyCell> species_cell(native_context->cell(), isolate); \ PropertyCell::SetValueWithInvalidation( \ isolate, #cell, species_cell, \ @@ -36,6 +56,9 @@ DECLARED_PROTECTORS_ON_NATIVE_CONTEXT( void Protectors::Invalidate##name(Isolate* isolate) { \ DCHECK(isolate->factory()->cell()->value().IsSmi()); \ DCHECK(Is##name##Intact(isolate)); \ + if (FLAG_trace_protector_invalidation) { \ + TraceProtectorInvalidation(#name); \ + } \ PropertyCell::SetValueWithInvalidation( \ isolate, #cell, isolate->factory()->cell(), \ handle(Smi::FromInt(kProtectorInvalid), isolate)); \ |