1 /* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include "arch/context.h" 18 #include "art_method-inl.h" 19 #include "jni.h" 20 #include "scoped_thread_state_change.h" 21 #include "stack.h" 22 #include "thread.h" 23 24 namespace art { 25 26 namespace { 27 28 class TestVisitor : public StackVisitor { 29 public: 30 TestVisitor(Thread* thread, Context* context, mirror::Object* this_value) 31 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) 32 : StackVisitor(thread, context, StackVisitor::StackWalkKind::kIncludeInlinedFrames), 33 this_value_(this_value), 34 found_method_index_(0) {} 35 36 bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 37 ArtMethod* m = GetMethod(); 38 std::string m_name(m->GetName()); 39 40 if (m_name.compare("testThisWithInstanceCall") == 0) { 41 found_method_index_ = 1; 42 uint32_t value = 0; 43 CHECK(GetVReg(m, 1, kReferenceVReg, &value)); 44 CHECK_EQ(reinterpret_cast<mirror::Object*>(value), this_value_); 45 CHECK_EQ(GetThisObject(), this_value_); 46 } else if (m_name.compare("testThisWithStaticCall") == 0) { 47 found_method_index_ = 2; 48 uint32_t value = 0; 49 CHECK(GetVReg(m, 1, kReferenceVReg, &value)); 50 } else if (m_name.compare("testParameter") == 0) { 51 found_method_index_ = 3; 52 uint32_t value = 0; 53 CHECK(GetVReg(m, 1, kReferenceVReg, &value)); 54 } else if (m_name.compare("testObjectInScope") == 0) { 55 found_method_index_ = 4; 56 uint32_t value = 0; 57 CHECK(GetVReg(m, 0, kReferenceVReg, &value)); 58 } 59 60 return true; 61 } 62 63 mirror::Object* this_value_; 64 65 // Value returned to Java to ensure the methods testSimpleVReg and testPairVReg 66 // have been found and tested. 67 jint found_method_index_; 68 }; 69 70 extern "C" JNIEXPORT jint JNICALL Java_Main_doNativeCallRef(JNIEnv*, jobject value) { 71 ScopedObjectAccess soa(Thread::Current()); 72 std::unique_ptr<Context> context(Context::Create()); 73 TestVisitor visitor(soa.Self(), context.get(), soa.Decode<mirror::Object*>(value)); 74 visitor.WalkStack(); 75 return visitor.found_method_index_; 76 } 77 78 extern "C" JNIEXPORT jint JNICALL Java_Main_doStaticNativeCallRef(JNIEnv*, jclass) { 79 ScopedObjectAccess soa(Thread::Current()); 80 std::unique_ptr<Context> context(Context::Create()); 81 TestVisitor visitor(soa.Self(), context.get(), nullptr); 82 visitor.WalkStack(); 83 return visitor.found_method_index_; 84 } 85 86 } // namespace 87 88 } // namespace art 89
