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 "oat_quick_method_header.h" 21 #include "scoped_thread_state_change.h" 22 #include "stack.h" 23 #include "thread.h" 24 25 namespace art { 26 27 namespace { 28 29 class TestVisitor : public StackVisitor { 30 public: 31 TestVisitor(Thread* thread, Context* context, mirror::Object* this_value) 32 SHARED_REQUIRES(Locks::mutator_lock_) 33 : StackVisitor(thread, context, StackVisitor::StackWalkKind::kIncludeInlinedFrames), 34 this_value_(this_value), 35 found_method_index_(0) {} 36 37 bool VisitFrame() SHARED_REQUIRES(Locks::mutator_lock_) { 38 ArtMethod* m = GetMethod(); 39 std::string m_name(m->GetName()); 40 41 if (m_name.compare("testSimpleVReg") == 0) { 42 found_method_index_ = 1; 43 uint32_t value = 0; 44 45 CHECK(GetVReg(m, 0, kIntVReg, &value)); 46 CHECK_EQ(value, 42u); 47 48 bool success = GetVReg(m, 1, kIntVReg, &value); 49 if (!IsCurrentFrameInInterpreter() && GetCurrentOatQuickMethodHeader()->IsOptimized()) { 50 CHECK(!success); 51 } 52 53 success = GetVReg(m, 2, kIntVReg, &value); 54 if (!IsCurrentFrameInInterpreter() && GetCurrentOatQuickMethodHeader()->IsOptimized()) { 55 CHECK(!success); 56 } 57 58 CHECK(GetVReg(m, 3, kReferenceVReg, &value)); 59 CHECK_EQ(reinterpret_cast<mirror::Object*>(value), this_value_); 60 61 CHECK(GetVReg(m, 4, kIntVReg, &value)); 62 CHECK_EQ(value, 1u); 63 64 CHECK(GetVReg(m, 5, kFloatVReg, &value)); 65 uint32_t cast = bit_cast<uint32_t, float>(1.0f); 66 CHECK_EQ(value, cast); 67 68 CHECK(GetVReg(m, 6, kIntVReg, &value)); 69 CHECK_EQ(value, 2u); 70 71 CHECK(GetVReg(m, 7, kIntVReg, &value)); 72 CHECK_EQ(value, true); 73 74 CHECK(GetVReg(m, 8, kIntVReg, &value)); 75 CHECK_EQ(value, 3u); 76 77 CHECK(GetVReg(m, 9, kIntVReg, &value)); 78 CHECK_EQ(value, static_cast<uint32_t>('c')); 79 } else if (m_name.compare("testPairVReg") == 0) { 80 found_method_index_ = 2; 81 uint64_t value = 0; 82 CHECK(GetVRegPair(m, 0, kLongLoVReg, kLongHiVReg, &value)); 83 CHECK_EQ(value, 42u); 84 85 bool success = GetVRegPair(m, 2, kLongLoVReg, kLongHiVReg, &value); 86 if (!IsCurrentFrameInInterpreter() && GetCurrentOatQuickMethodHeader()->IsOptimized()) { 87 CHECK(!success); 88 } 89 90 success = GetVRegPair(m, 4, kLongLoVReg, kLongHiVReg, &value); 91 if (!IsCurrentFrameInInterpreter() && GetCurrentOatQuickMethodHeader()->IsOptimized()) { 92 CHECK(!success); 93 } 94 95 uint32_t value32 = 0; 96 CHECK(GetVReg(m, 6, kReferenceVReg, &value32)); 97 CHECK_EQ(reinterpret_cast<mirror::Object*>(value32), this_value_); 98 99 CHECK(GetVRegPair(m, 7, kLongLoVReg, kLongHiVReg, &value)); 100 CHECK_EQ(static_cast<int64_t>(value), std::numeric_limits<int64_t>::min()); 101 102 CHECK(GetVRegPair(m, 9, kLongLoVReg, kLongHiVReg, &value)); 103 CHECK_EQ(static_cast<int64_t>(value), std::numeric_limits<int64_t>::max()); 104 105 CHECK(GetVRegPair(m, 11, kLongLoVReg, kLongHiVReg, &value)); 106 CHECK_EQ(value, 0u); 107 108 CHECK(GetVRegPair(m, 13, kDoubleLoVReg, kDoubleHiVReg, &value)); 109 uint64_t cast = bit_cast<uint64_t, double>(2.0); 110 CHECK_EQ(value, cast); 111 } 112 113 return true; 114 } 115 116 mirror::Object* this_value_; 117 118 // Value returned to Java to ensure the methods testSimpleVReg and testPairVReg 119 // have been found and tested. 120 jint found_method_index_; 121 }; 122 123 extern "C" JNIEXPORT jint JNICALL Java_Main_doNativeCall(JNIEnv*, jobject value) { 124 ScopedObjectAccess soa(Thread::Current()); 125 std::unique_ptr<Context> context(Context::Create()); 126 TestVisitor visitor(soa.Self(), context.get(), soa.Decode<mirror::Object*>(value)); 127 visitor.WalkStack(); 128 return visitor.found_method_index_; 129 } 130 131 } // namespace 132 133 } // namespace art 134
