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 /* 21 * Mterp assembly handler bases 22 */ 23 extern "C" void* artMterpAsmInstructionStart[]; 24 extern "C" void* artMterpAsmInstructionEnd[]; 25 extern "C" void* artMterpAsmAltInstructionStart[]; 26 extern "C" void* artMterpAsmAltInstructionEnd[]; 27 28 namespace art { 29 namespace interpreter { 30 31 void InitMterpTls(Thread* self); 32 void CheckMterpAsmConstants(); 33 34 // The return type should be 'bool' but our assembly stubs expect 'bool' 35 // to be zero-extended to the whole register and that's broken on x86-64 36 // as a 'bool' is returned in 'al' and the rest of 'rax' is garbage. 37 // TODO: Fix mterp and stubs and revert this workaround. http://b/30232671 38 extern "C" size_t MterpShouldSwitchInterpreters(); 39 40 // Poison value for TestExportPC. If we segfault with this value, it means that a mterp 41 // handler for a recent opcode failed to export the Dalvik PC prior to a possible exit from 42 // the mterp environment. 43 constexpr uintptr_t kExportPCPoison = 0xdead00ff; 44 // Set true to enable poison testing of ExportPC. Uses Alt interpreter. 45 constexpr bool kTestExportPC = false; 46 47 } // namespace interpreter 48 } // namespace art 49 50 #endif // ART_RUNTIME_INTERPRETER_MTERP_MTERP_H_ 51