/*
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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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class TestVisitor : public StackVisitor {
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public:
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TestVisitor(Thread* thread, Context* context, mirror::Object* this_value)
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REQUIRES_SHARED(Locks::mutator_lock_)
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: StackVisitor(thread, context, StackVisitor::StackWalkKind::kIncludeInlinedFrames),
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this_value_(this_value),
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found_method_index_(0) {}
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bool VisitFrame() override REQUIRES_SHARED(Locks::mutator_lock_) {
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ArtMethod* m = GetMethod();
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std::string m_name(m->GetName());
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if (m_name.compare("testSimpleVReg") == 0) {
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found_method_index_ = 1;
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uint32_t value = 0;
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CHECK(GetVReg(m, 0, kIntVReg, &value));
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CHECK_EQ(value, 42u);
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bool success = GetVReg(m, 1, kIntVReg, &value);
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if (!IsShadowFrame() && GetCurrentOatQuickMethodHeader()->IsOptimized()) {
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CHECK(!success);
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}
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success = GetVReg(m, 2, kIntVReg, &value);
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if (!IsShadowFrame() && GetCurrentOatQuickMethodHeader()->IsOptimized()) {
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CHECK(!success);
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}
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CHECK(GetVReg(m, 3, kReferenceVReg, &value));
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CHECK_EQ(reinterpret_cast<mirror::Object*>(value), this_value_);
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CHECK(GetVReg(m, 4, kIntVReg, &value));
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CHECK_EQ(value, 1u);
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CHECK(GetVReg(m, 5, kFloatVReg, &value));
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uint32_t cast = bit_cast<uint32_t, float>(1.0f);
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CHECK_EQ(value, cast);
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CHECK(GetVReg(m, 6, kIntVReg, &value));
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CHECK_EQ(value, 2u);
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CHECK(GetVReg(m, 7, kIntVReg, &value));
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CHECK_EQ(value, true);
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CHECK(GetVReg(m, 8, kIntVReg, &value));
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CHECK_EQ(value, 3u);
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CHECK(GetVReg(m, 9, kIntVReg, &value));
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CHECK_EQ(value, static_cast<uint32_t>('c'));
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} else if (m_name.compare("testPairVReg") == 0) {
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found_method_index_ = 2;
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uint64_t value = 0;
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CHECK(GetVRegPair(m, 0, kLongLoVReg, kLongHiVReg, &value));
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CHECK_EQ(value, 42u);
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bool success = GetVRegPair(m, 2, kLongLoVReg, kLongHiVReg, &value);
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if (!IsShadowFrame() && GetCurrentOatQuickMethodHeader()->IsOptimized()) {
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CHECK(!success);
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}
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success = GetVRegPair(m, 4, kLongLoVReg, kLongHiVReg, &value);
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if (!IsShadowFrame() && GetCurrentOatQuickMethodHeader()->IsOptimized()) {
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CHECK(!success);
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}
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uint32_t value32 = 0;
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CHECK(GetVReg(m, 6, kReferenceVReg, &value32));
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CHECK_EQ(reinterpret_cast<mirror::Object*>(value32), this_value_);
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CHECK(GetVRegPair(m, 7, kLongLoVReg, kLongHiVReg, &value));
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CHECK_EQ(static_cast<int64_t>(value), std::numeric_limits<int64_t>::min());
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CHECK(GetVRegPair(m, 9, kLongLoVReg, kLongHiVReg, &value));
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CHECK_EQ(static_cast<int64_t>(value), std::numeric_limits<int64_t>::max());
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CHECK(GetVRegPair(m, 11, kLongLoVReg, kLongHiVReg, &value));
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CHECK_EQ(value, 0u);
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CHECK(GetVRegPair(m, 13, kDoubleLoVReg, kDoubleHiVReg, &value));
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uint64_t cast = bit_cast<uint64_t, double>(2.0);
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CHECK_EQ(value, cast);
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}
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return true;
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}
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mirror::Object* this_value_;
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// Value returned to Java to ensure the methods testSimpleVReg and testPairVReg
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// have been found and tested.
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jint found_method_index_;
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};
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extern "C" JNIEXPORT jint JNICALL Java_Main_doNativeCall(JNIEnv*, jobject value) {
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ScopedObjectAccess soa(Thread::Current());
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std::unique_ptr<Context> context(Context::Create());
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TestVisitor visitor(soa.Self(), context.get(), soa.Decode<mirror::Object>(value).Ptr());
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visitor.WalkStack();
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return visitor.found_method_index_;
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}
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} // namespace
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} // namespace art
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