blob: 063668216c7f3e4d019ba0027df3743594e10c65 [file] [log] [blame]
/*
* Copyright (C) 2015 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 "arch/context.h"
#include "art_method-inl.h"
#include "jni.h"
#include "oat_quick_method_header.h"
#include "scoped_thread_state_change-inl.h"
#include "stack.h"
#include "thread.h"
namespace art {
namespace {
bool IsFrameCompiledAndNonDebuggable(const art::StackVisitor* sv) {
return sv->GetCurrentShadowFrame() == nullptr &&
sv->GetCurrentOatQuickMethodHeader()->IsOptimized() &&
!Runtime::Current()->IsJavaDebuggable();
}
void CheckOptimizedOutRegLiveness(const art::StackVisitor* sv,
ArtMethod* m,
uint32_t dex_reg,
VRegKind vreg_kind,
bool check_val = false,
uint32_t expected = 0) REQUIRES_SHARED(Locks::mutator_lock_) {
uint32_t value = 0;
if (IsFrameCompiledAndNonDebuggable(sv)) {
CHECK_EQ(sv->GetVReg(m, dex_reg, vreg_kind, &value), false);
} else {
CHECK(sv->GetVReg(m, dex_reg, vreg_kind, &value));
if (check_val) {
CHECK_EQ(value, expected);
}
}
}
jint FindMethodIndex(jobject this_value_jobj) {
ScopedObjectAccess soa(Thread::Current());
std::unique_ptr<Context> context(Context::Create());
ObjPtr<mirror::Object> this_value = soa.Decode<mirror::Object>(this_value_jobj);
jint found_method_index = 0;
StackVisitor::WalkStack(
[&](const art::StackVisitor* stack_visitor) REQUIRES_SHARED(Locks::mutator_lock_) {
ArtMethod* m = stack_visitor->GetMethod();
std::string m_name(m->GetName());
if (m_name.compare("$noinline$testThisWithInstanceCall") == 0) {
found_method_index = 1;
uint32_t value = 0;
if (IsFrameCompiledAndNonDebuggable(stack_visitor)) {
CheckOptimizedOutRegLiveness(stack_visitor, m, 1, kReferenceVReg);
} else {
CHECK(stack_visitor->GetVReg(m, 1, kReferenceVReg, &value));
CHECK_EQ(reinterpret_cast<mirror::Object*>(value), this_value);
CHECK_EQ(stack_visitor->GetThisObject(), this_value);
}
} else if (m_name.compare("$noinline$testThisWithStaticCall") == 0) {
found_method_index = 2;
CheckOptimizedOutRegLiveness(stack_visitor, m, 1, kReferenceVReg);
} else if (m_name.compare("$noinline$testParameter") == 0) {
found_method_index = 3;
CheckOptimizedOutRegLiveness(stack_visitor, m, 1, kReferenceVReg);
} else if (m_name.compare("$noinline$testObjectInScope") == 0) {
found_method_index = 4;
CheckOptimizedOutRegLiveness(stack_visitor, m, 0, kReferenceVReg);
}
return true;
},
soa.Self(),
context.get(),
art::StackVisitor::StackWalkKind::kIncludeInlinedFrames);
return found_method_index;
}
extern "C" JNIEXPORT jint JNICALL Java_Main_doNativeCallRef(JNIEnv*, jobject value) {
return FindMethodIndex(value);
}
extern "C" JNIEXPORT jint JNICALL Java_Main_doStaticNativeCallRef(JNIEnv*, jclass) {
return FindMethodIndex(nullptr);
}
} // namespace
} // namespace art