diff options
Diffstat (limited to 'deps/v8/src/debug/debug-frames.cc')
-rw-r--r-- | deps/v8/src/debug/debug-frames.cc | 107 |
1 files changed, 62 insertions, 45 deletions
diff --git a/deps/v8/src/debug/debug-frames.cc b/deps/v8/src/debug/debug-frames.cc index a7956ff417..c98f911f75 100644 --- a/deps/v8/src/debug/debug-frames.cc +++ b/deps/v8/src/debug/debug-frames.cc @@ -9,45 +9,55 @@ namespace v8 { namespace internal { -FrameInspector::FrameInspector(JavaScriptFrame* frame, - int inlined_jsframe_index, Isolate* isolate) +FrameInspector::FrameInspector(StandardFrame* frame, int inlined_jsframe_index, + Isolate* isolate) : frame_(frame), deoptimized_frame_(NULL), isolate_(isolate) { - has_adapted_arguments_ = frame_->has_adapted_arguments(); + JavaScriptFrame* js_frame = + frame->is_java_script() ? javascript_frame() : nullptr; + DCHECK(js_frame || frame->is_wasm()); + has_adapted_arguments_ = js_frame && js_frame->has_adapted_arguments(); is_bottommost_ = inlined_jsframe_index == 0; is_optimized_ = frame_->is_optimized(); is_interpreted_ = frame_->is_interpreted(); // Calculate the deoptimized frame. if (frame->is_optimized()) { + DCHECK(js_frame != nullptr); // TODO(turbofan): Revisit once we support deoptimization. - if (frame->LookupCode()->is_turbofanned() && - frame->function()->shared()->asm_function() && + if (js_frame->LookupCode()->is_turbofanned() && + js_frame->function()->shared()->asm_function() && !FLAG_turbo_asm_deoptimization) { is_optimized_ = false; return; } deoptimized_frame_ = Deoptimizer::DebuggerInspectableFrame( - frame, inlined_jsframe_index, isolate); + js_frame, inlined_jsframe_index, isolate); } } - FrameInspector::~FrameInspector() { // Get rid of the calculated deoptimized frame if any. - if (deoptimized_frame_ != NULL) { - Deoptimizer::DeleteDebuggerInspectableFrame(deoptimized_frame_, isolate_); + if (deoptimized_frame_ != nullptr) { + delete deoptimized_frame_; } } - int FrameInspector::GetParametersCount() { return is_optimized_ ? deoptimized_frame_->parameters_count() : frame_->ComputeParametersCount(); } -Handle<Object> FrameInspector::GetFunction() { +Handle<Script> FrameInspector::GetScript() { + Object* script = is_optimized_ + ? deoptimized_frame_->GetFunction()->shared()->script() + : frame_->script(); + return handle(Script::cast(script), isolate_); +} + +Handle<JSFunction> FrameInspector::GetFunction() { + DCHECK(!frame_->is_wasm()); return is_optimized_ ? deoptimized_frame_->GetFunction() - : handle(frame_->function(), isolate_); + : handle(javascript_frame()->function(), isolate_); } Handle<Object> FrameInspector::GetParameter(int index) { @@ -57,8 +67,9 @@ Handle<Object> FrameInspector::GetParameter(int index) { Handle<Object> FrameInspector::GetExpression(int index) { // TODO(turbofan): Revisit once we support deoptimization. - if (frame_->LookupCode()->is_turbofanned() && - frame_->function()->shared()->asm_function() && + if (frame_->is_java_script() && + javascript_frame()->LookupCode()->is_turbofanned() && + javascript_frame()->function()->shared()->asm_function() && !FLAG_turbo_asm_deoptimization) { return isolate_->factory()->undefined_value(); } @@ -68,18 +79,18 @@ Handle<Object> FrameInspector::GetExpression(int index) { int FrameInspector::GetSourcePosition() { - if (is_optimized_) { - return deoptimized_frame_->GetSourcePosition(); - } else if (is_interpreted_) { + if (is_optimized_) return deoptimized_frame_->GetSourcePosition(); + AbstractCode* code; + int code_offset; + if (is_interpreted_) { InterpretedFrame* frame = reinterpret_cast<InterpretedFrame*>(frame_); - BytecodeArray* bytecode_array = - frame->function()->shared()->bytecode_array(); - return bytecode_array->SourcePosition(frame->GetBytecodeOffset()); + code = AbstractCode::cast(frame->GetBytecodeArray()); + code_offset = frame->GetBytecodeOffset(); } else { - Code* code = frame_->LookupCode(); - int offset = static_cast<int>(frame_->pc() - code->instruction_start()); - return code->SourcePosition(offset); + code = AbstractCode::cast(frame_->LookupCode()); + code_offset = static_cast<int>(frame_->pc() - code->instruction_start()); } + return code->SourcePosition(code_offset); } @@ -97,8 +108,9 @@ Handle<Object> FrameInspector::GetContext() { // To inspect all the provided arguments the frame might need to be // replaced with the arguments frame. -void FrameInspector::SetArgumentsFrame(JavaScriptFrame* frame) { +void FrameInspector::SetArgumentsFrame(StandardFrame* frame) { DCHECK(has_adapted_arguments_); + DCHECK(frame->is_arguments_adaptor()); frame_ = frame; is_optimized_ = frame_->is_optimized(); is_interpreted_ = frame_->is_interpreted(); @@ -117,26 +129,31 @@ void FrameInspector::MaterializeStackLocals(Handle<JSObject> target, // TODO(yangguo): check whether this is necessary, now that we materialize // context locals as well. Handle<String> name(scope_info->ParameterName(i)); + if (ScopeInfo::VariableIsSynthetic(*name)) continue; if (ParameterIsShadowedByContextLocal(scope_info, name)) continue; Handle<Object> value = i < GetParametersCount() ? GetParameter(i) : Handle<Object>::cast(isolate_->factory()->undefined_value()); - DCHECK(!value->IsTheHole()); + DCHECK(!value->IsTheHole(isolate_)); JSObject::SetOwnPropertyIgnoreAttributes(target, name, value, NONE).Check(); } // Second fill all stack locals. for (int i = 0; i < scope_info->StackLocalCount(); ++i) { - if (scope_info->LocalIsSynthetic(i)) continue; Handle<String> name(scope_info->StackLocalName(i)); + if (ScopeInfo::VariableIsSynthetic(*name)) continue; Handle<Object> value = GetExpression(scope_info->StackLocalIndex(i)); // TODO(yangguo): We convert optimized out values to {undefined} when they // are passed to the debugger. Eventually we should handle them somehow. - if (value->IsTheHole()) value = isolate_->factory()->undefined_value(); - if (value->IsOptimizedOut()) value = isolate_->factory()->undefined_value(); + if (value->IsTheHole(isolate_)) { + value = isolate_->factory()->undefined_value(); + } + if (value->IsOptimizedOut(isolate_)) { + value = isolate_->factory()->undefined_value(); + } JSObject::SetOwnPropertyIgnoreAttributes(target, name, value, NONE).Check(); } } @@ -152,10 +169,8 @@ void FrameInspector::MaterializeStackLocals(Handle<JSObject> target, void FrameInspector::UpdateStackLocalsFromMaterializedObject( Handle<JSObject> target, Handle<ScopeInfo> scope_info) { - if (is_optimized_) { - // Optimized frames are not supported. Simply give up. - return; - } + // Optimized frames and wasm frames are not supported. Simply give up. + if (is_optimized_ || frame_->is_wasm()) return; HandleScope scope(isolate_); @@ -163,23 +178,23 @@ void FrameInspector::UpdateStackLocalsFromMaterializedObject( for (int i = 0; i < scope_info->ParameterCount(); ++i) { // Shadowed parameters were not materialized. Handle<String> name(scope_info->ParameterName(i)); + if (ScopeInfo::VariableIsSynthetic(*name)) continue; if (ParameterIsShadowedByContextLocal(scope_info, name)) continue; - DCHECK(!frame_->GetParameter(i)->IsTheHole()); + DCHECK(!javascript_frame()->GetParameter(i)->IsTheHole(isolate_)); Handle<Object> value = Object::GetPropertyOrElement(target, name).ToHandleChecked(); - frame_->SetParameterValue(i, *value); + javascript_frame()->SetParameterValue(i, *value); } // Stack locals. for (int i = 0; i < scope_info->StackLocalCount(); ++i) { - if (scope_info->LocalIsSynthetic(i)) continue; + Handle<String> name(scope_info->StackLocalName(i)); + if (ScopeInfo::VariableIsSynthetic(*name)) continue; int index = scope_info->StackLocalIndex(i); - if (frame_->GetExpression(index)->IsTheHole()) continue; + if (frame_->GetExpression(index)->IsTheHole(isolate_)) continue; Handle<Object> value = - Object::GetPropertyOrElement( - target, handle(scope_info->StackLocalName(i), isolate_)) - .ToHandleChecked(); + Object::GetPropertyOrElement(target, name).ToHandleChecked(); frame_->SetExpression(index, *value); } } @@ -194,9 +209,8 @@ bool FrameInspector::ParameterIsShadowedByContextLocal( &maybe_assigned_flag) != -1; } - -SaveContext* DebugFrameHelper::FindSavedContextForFrame( - Isolate* isolate, JavaScriptFrame* frame) { +SaveContext* DebugFrameHelper::FindSavedContextForFrame(Isolate* isolate, + StandardFrame* frame) { SaveContext* save = isolate->save_context(); while (save != NULL && !save->IsBelowFrame(frame)) { save = save->prev(); @@ -205,13 +219,16 @@ SaveContext* DebugFrameHelper::FindSavedContextForFrame( return save; } - -int DebugFrameHelper::FindIndexedNonNativeFrame(JavaScriptFrameIterator* it, +int DebugFrameHelper::FindIndexedNonNativeFrame(StackTraceFrameIterator* it, int index) { int count = -1; for (; !it->done(); it->Advance()) { + if (it->is_wasm()) { + if (++count == index) return 0; + continue; + } List<FrameSummary> frames(FLAG_max_inlining_levels + 1); - it->frame()->Summarize(&frames); + it->javascript_frame()->Summarize(&frames); for (int i = frames.length() - 1; i >= 0; i--) { // Omit functions from native and extension scripts. if (!frames[i].function()->shared()->IsSubjectToDebugging()) continue; |