| /* | |
| * 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 "callee_save_frame.h" | |
| #include "instruction_set.h" | |
| #include "instrumentation.h" | |
| #include "mirror/art_method-inl.h" | |
| #include "mirror/object-inl.h" | |
| #include "runtime.h" | |
| #include "thread-inl.h" | |
| namespace art { | |
| extern "C" const void* artInstrumentationMethodEntryFromCode(mirror::ArtMethod* method, | |
| mirror::Object* this_object, | |
| Thread* self, | |
| StackReference<mirror::ArtMethod>* sp, | |
| uintptr_t lr) | |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { | |
| FinishCalleeSaveFrameSetup(self, sp, Runtime::kRefsAndArgs); | |
| instrumentation::Instrumentation* instrumentation = Runtime::Current()->GetInstrumentation(); | |
| const void* result; | |
| if (instrumentation->IsDeoptimized(method)) { | |
| result = GetQuickToInterpreterBridge(); | |
| } else { | |
| result = instrumentation->GetQuickCodeFor(method); | |
| } | |
| DCHECK(result != Runtime::Current()->GetClassLinker()->GetQuickToInterpreterBridgeTrampoline()); | |
| bool interpreter_entry = (result == GetQuickToInterpreterBridge()); | |
| instrumentation->PushInstrumentationStackFrame(self, method->IsStatic() ? nullptr : this_object, | |
| method, lr, interpreter_entry); | |
| CHECK(result != NULL) << PrettyMethod(method); | |
| return result; | |
| } | |
| extern "C" TwoWordReturn artInstrumentationMethodExitFromCode(Thread* self, | |
| StackReference<mirror::ArtMethod>* sp, | |
| uint64_t gpr_result, | |
| uint64_t fpr_result) | |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { | |
| // TODO: use FinishCalleeSaveFrameSetup(self, sp, Runtime::kRefsOnly) not the hand inlined below. | |
| // We use the hand inline version to ensure the return_pc is assigned before verifying the | |
| // stack. | |
| // Be aware the store below may well stomp on an incoming argument. | |
| Locks::mutator_lock_->AssertSharedHeld(self); | |
| Runtime* runtime = Runtime::Current(); | |
| sp->Assign(runtime->GetCalleeSaveMethod(Runtime::kRefsOnly)); | |
| uint32_t return_pc_offset = GetCalleeSavePCOffset(kRuntimeISA, Runtime::kRefsOnly); | |
| uintptr_t* return_pc = reinterpret_cast<uintptr_t*>(reinterpret_cast<byte*>(sp) + | |
| return_pc_offset); | |
| CHECK_EQ(*return_pc, 0U); | |
| self->SetTopOfStack(sp, 0); | |
| self->VerifyStack(); | |
| instrumentation::Instrumentation* instrumentation = Runtime::Current()->GetInstrumentation(); | |
| TwoWordReturn return_or_deoptimize_pc = instrumentation->PopInstrumentationStackFrame( | |
| self, return_pc, gpr_result, fpr_result); | |
| self->VerifyStack(); | |
| return return_or_deoptimize_pc; | |
| } | |
| } // namespace art |