1 /* 2 * Copyright (C) 2014 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 "class_linker.h" 18 #include "dex_file-inl.h" 19 #include "gc/heap.h" 20 #include "gc/space/image_space.h" 21 #include "mirror/class-inl.h" 22 #include "oat_file.h" 23 #include "runtime.h" 24 #include "scoped_thread_state_change-inl.h" 25 #include "thread.h" 26 27 namespace art { 28 29 class NoPatchoatTest { 30 public: 31 static const OatFile::OatDexFile* getOatDexFile(jclass cls) { 32 ScopedObjectAccess soa(Thread::Current()); 33 ObjPtr<mirror::Class> klass = soa.Decode<mirror::Class>(cls); 34 const DexFile& dex_file = klass->GetDexFile(); 35 return dex_file.GetOatDexFile(); 36 } 37 38 static bool isRelocationDeltaZero() { 39 std::vector<gc::space::ImageSpace*> spaces = 40 Runtime::Current()->GetHeap()->GetBootImageSpaces(); 41 return !spaces.empty() && spaces[0]->GetImageHeader().GetPatchDelta() == 0; 42 } 43 44 static bool hasExecutableOat(jclass cls) { 45 const OatFile::OatDexFile* oat_dex_file = getOatDexFile(cls); 46 47 return oat_dex_file != nullptr && oat_dex_file->GetOatFile()->IsExecutable(); 48 } 49 50 static bool needsRelocation(jclass cls) { 51 const OatFile::OatDexFile* oat_dex_file = getOatDexFile(cls); 52 53 if (oat_dex_file == nullptr) { 54 return false; 55 } 56 57 const OatFile* oat_file = oat_dex_file->GetOatFile(); 58 return !oat_file->IsPic() 59 && CompilerFilter::IsAotCompilationEnabled(oat_file->GetCompilerFilter()); 60 } 61 }; 62 63 extern "C" JNIEXPORT jboolean JNICALL Java_Main_isRelocationDeltaZero(JNIEnv*, jclass) { 64 return NoPatchoatTest::isRelocationDeltaZero(); 65 } 66 67 extern "C" JNIEXPORT jboolean JNICALL Java_Main_hasExecutableOat(JNIEnv*, jclass cls) { 68 return NoPatchoatTest::hasExecutableOat(cls); 69 } 70 71 extern "C" JNIEXPORT jboolean JNICALL Java_Main_needsRelocation(JNIEnv*, jclass cls) { 72 return NoPatchoatTest::needsRelocation(cls); 73 } 74 75 } // namespace art 76
