1 /* 2 * Copyright (C) 2016 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 #ifndef ART_RUNTIME_INTERPRETER_MTERP_MTERP_H_ 18 #define ART_RUNTIME_INTERPRETER_MTERP_MTERP_H_ 19 20 #include <cstddef> 21 #include <cstdint> 22 23 /* 24 * Mterp assembly handler bases 25 */ 26 extern "C" void* artMterpAsmInstructionStart[]; 27 extern "C" void* artMterpAsmInstructionEnd[]; 28 29 namespace art { 30 31 class Thread; 32 33 namespace interpreter { 34 35 void InitMterpTls(Thread* self); 36 void CheckMterpAsmConstants(); 37 bool CanUseMterp(); 38 39 // Poison value for TestExportPC. If we segfault with this value, it means that a mterp 40 // handler for a recent opcode failed to export the Dalvik PC prior to a possible exit from 41 // the mterp environment. 42 constexpr uintptr_t kExportPCPoison = 0xdead00ff; 43 // Set true to enable poison testing of ExportPC. Uses Alt interpreter. 44 constexpr bool kTestExportPC = false; 45 46 constexpr size_t kMterpHandlerSize = 128; 47 48 } // namespace interpreter 49 } // namespace art 50 51 #endif // ART_RUNTIME_INTERPRETER_MTERP_MTERP_H_ 52