| /* |
| * Copyright (C) 2012 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include "base/logging.h" |
| #include "instrumentation.h" |
| #include "runtime.h" |
| #include "thread-inl.h" |
| #include "trace.h" |
| |
| namespace art { |
| |
| extern "C" const void* artInstrumentationMethodEntryFromCode(mirror::AbstractMethod* method, |
| Thread* self, |
| mirror::AbstractMethod** sp, |
| uintptr_t lr) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| self->SetTopOfStack(sp, lr); |
| self->VerifyStack(); |
| Instrumentation* instrumentation = Runtime::Current()->GetInstrumentation(); |
| // +1 as frame id's start at 1, +1 as we haven't yet built this method's frame. |
| size_t frame_id = StackVisitor::ComputeNumFrames(self) + 2; |
| InstrumentationStackFrame instrumentation_frame(method, lr, frame_id); |
| self->PushInstrumentationStackFrame(instrumentation_frame); |
| |
| Trace* trace = instrumentation->GetTrace(); |
| if (trace != NULL) { |
| trace->LogMethodTraceEvent(self, method, Trace::kMethodTraceEnter); |
| } |
| |
| return instrumentation->GetSavedCodeFromMap(method); |
| } |
| |
| extern "C" uint64_t artInstrumentationMethodExitFromCode(Thread* self, mirror::AbstractMethod** sp) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| self->SetTopOfStack(sp, 0); |
| self->VerifyStack(); |
| // +1 as frame id's start at 1, +1 as we want the called frame not the frame being returned into. |
| size_t frame_id = StackVisitor::ComputeNumFrames(self) + 2; |
| InstrumentationStackFrame instrumentation_frame; |
| instrumentation_frame = self->PopInstrumentationStackFrame(); |
| if (frame_id != instrumentation_frame.frame_id_) { |
| LOG(ERROR) << "Expected frame_id=" << frame_id << " but found " << instrumentation_frame.frame_id_; |
| StackVisitor::DescribeStack(self); |
| } |
| Runtime* runtime = Runtime::Current(); |
| if (runtime->IsMethodTracingActive()) { |
| Trace* trace = runtime->GetInstrumentation()->GetTrace(); |
| trace->LogMethodTraceEvent(self, instrumentation_frame.method_, Trace::kMethodTraceExit); |
| } |
| if (self->ReadFlag(kEnterInterpreter)) { |
| return static_cast<uint64_t>(GetDeoptimizationEntryPoint()) | |
| (static_cast<uint64_t>(instrumentation_frame.return_pc_) << 32); |
| } else { |
| return instrumentation_frame.return_pc_; |
| } |
| } |
| |
| } // namespace art |