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/*
* 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 "scoped_thread_state_change-inl.h"
#include "stack.h"
#include "thread.h"
namespace art {
namespace {
class TestVisitor : public StackVisitor {
public:
TestVisitor(Thread* thread, Context* context, mirror::Object* this_value)
REQUIRES_SHARED(Locks::mutator_lock_)
: StackVisitor(thread, context, StackVisitor::StackWalkKind::kIncludeInlinedFrames),
this_value_(this_value),
found_method_index_(0) {}
bool VisitFrame() REQUIRES_SHARED(Locks::mutator_lock_) {
ArtMethod* m = GetMethod();
std::string m_name(m->GetName());
if (m_name.compare("testThisWithInstanceCall") == 0) {
found_method_index_ = 1;
uint32_t value = 0;
CHECK(GetVReg(m, 1, kReferenceVReg, &value));
CHECK_EQ(reinterpret_cast<mirror::Object*>(value), this_value_);
CHECK_EQ(GetThisObject(), this_value_);
} else if (m_name.compare("testThisWithStaticCall") == 0) {
found_method_index_ = 2;
uint32_t value = 0;
CHECK(GetVReg(m, 1, kReferenceVReg, &value));
} else if (m_name.compare("testParameter") == 0) {
found_method_index_ = 3;
uint32_t value = 0;
CHECK(GetVReg(m, 1, kReferenceVReg, &value));
} else if (m_name.compare("testObjectInScope") == 0) {
found_method_index_ = 4;
uint32_t value = 0;
CHECK(GetVReg(m, 0, kReferenceVReg, &value));
}
return true;
}
mirror::Object* this_value_;
// Value returned to Java to ensure the methods testSimpleVReg and testPairVReg
// have been found and tested.
jint found_method_index_;
};
extern "C" JNIEXPORT jint JNICALL Java_Main_doNativeCallRef(JNIEnv*, jobject value) {
ScopedObjectAccess soa(Thread::Current());
std::unique_ptr<Context> context(Context::Create());
TestVisitor visitor(soa.Self(), context.get(), soa.Decode<mirror::Object>(value).Ptr());
visitor.WalkStack();
return visitor.found_method_index_;
}
extern "C" JNIEXPORT jint JNICALL Java_Main_doStaticNativeCallRef(JNIEnv*, jclass) {
ScopedObjectAccess soa(Thread::Current());
std::unique_ptr<Context> context(Context::Create());
TestVisitor visitor(soa.Self(), context.get(), nullptr);
visitor.WalkStack();
return visitor.found_method_index_;
}
} // namespace
} // namespace art