| /* |
| * 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 = instrumentation->GetQuickCodeFor(method); |
| DCHECK(result != GetQuickToInterpreterBridgeTrampoline(Runtime::Current()->GetClassLinker())); |
| bool interpreter_entry = (result == GetQuickToInterpreterBridge()); |
| instrumentation->PushInstrumentationStackFrame(self, method->IsStatic() ? NULL : 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 |
