102 lines
3.6 KiB
C++
102 lines
3.6 KiB
C++
/*
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* Copyright (C) 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "arch/context.h"
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#include "art_method-inl.h"
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#include "jni.h"
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#include "oat_quick_method_header.h"
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#include "scoped_thread_state_change-inl.h"
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#include "stack.h"
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#include "thread.h"
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namespace art {
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namespace {
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bool IsFrameCompiledAndNonDebuggable(const art::StackVisitor* sv) {
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return sv->GetCurrentShadowFrame() == nullptr &&
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sv->GetCurrentOatQuickMethodHeader()->IsOptimized() &&
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!Runtime::Current()->IsJavaDebuggable();
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}
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void CheckOptimizedOutRegLiveness(const art::StackVisitor* sv,
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ArtMethod* m,
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uint32_t dex_reg,
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VRegKind vreg_kind,
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bool check_val = false,
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uint32_t expected = 0) REQUIRES_SHARED(Locks::mutator_lock_) {
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uint32_t value = 0;
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if (IsFrameCompiledAndNonDebuggable(sv)) {
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CHECK_EQ(sv->GetVReg(m, dex_reg, vreg_kind, &value), false);
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} else {
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CHECK(sv->GetVReg(m, dex_reg, vreg_kind, &value));
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if (check_val) {
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CHECK_EQ(value, expected);
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}
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}
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}
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jint FindMethodIndex(jobject this_value_jobj) {
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ScopedObjectAccess soa(Thread::Current());
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std::unique_ptr<Context> context(Context::Create());
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ObjPtr<mirror::Object> this_value = soa.Decode<mirror::Object>(this_value_jobj);
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jint found_method_index = 0;
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StackVisitor::WalkStack(
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[&](const art::StackVisitor* stack_visitor) REQUIRES_SHARED(Locks::mutator_lock_) {
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ArtMethod* m = stack_visitor->GetMethod();
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std::string m_name(m->GetName());
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if (m_name.compare("$noinline$testThisWithInstanceCall") == 0) {
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found_method_index = 1;
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uint32_t value = 0;
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if (IsFrameCompiledAndNonDebuggable(stack_visitor)) {
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CheckOptimizedOutRegLiveness(stack_visitor, m, 1, kReferenceVReg);
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} else {
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CHECK(stack_visitor->GetVReg(m, 1, kReferenceVReg, &value));
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CHECK_EQ(reinterpret_cast<mirror::Object*>(value), this_value);
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CHECK_EQ(stack_visitor->GetThisObject(), this_value);
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}
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} else if (m_name.compare("$noinline$testThisWithStaticCall") == 0) {
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found_method_index = 2;
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CheckOptimizedOutRegLiveness(stack_visitor, m, 1, kReferenceVReg);
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} else if (m_name.compare("$noinline$testParameter") == 0) {
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found_method_index = 3;
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CheckOptimizedOutRegLiveness(stack_visitor, m, 1, kReferenceVReg);
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} else if (m_name.compare("$noinline$testObjectInScope") == 0) {
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found_method_index = 4;
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CheckOptimizedOutRegLiveness(stack_visitor, m, 0, kReferenceVReg);
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}
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return true;
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},
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soa.Self(),
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context.get(),
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art::StackVisitor::StackWalkKind::kIncludeInlinedFrames);
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return found_method_index;
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}
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extern "C" JNIEXPORT jint JNICALL Java_Main_doNativeCallRef(JNIEnv*, jobject value) {
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return FindMethodIndex(value);
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}
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extern "C" JNIEXPORT jint JNICALL Java_Main_doStaticNativeCallRef(JNIEnv*, jclass) {
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return FindMethodIndex(nullptr);
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}
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} // namespace
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} // namespace art
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