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 #pragma once 18 19 #include <stdint.h> 20 21 #include <unordered_map> 22 23 namespace unwindstack { 24 25 struct DwarfCie; 26 27 enum DwarfLocationEnum : uint8_t { 28 DWARF_LOCATION_INVALID = 0, 29 DWARF_LOCATION_UNDEFINED, 30 DWARF_LOCATION_OFFSET, 31 DWARF_LOCATION_VAL_OFFSET, 32 DWARF_LOCATION_REGISTER, 33 DWARF_LOCATION_EXPRESSION, 34 DWARF_LOCATION_VAL_EXPRESSION, 35 DWARF_LOCATION_PSEUDO_REGISTER, 36 }; 37 38 struct DwarfLocation { 39 DwarfLocationEnum type; 40 uint64_t values[2]; 41 }; 42 43 struct DwarfLocations : public std::unordered_map<uint32_t, DwarfLocation> { 44 const DwarfCie* cie; 45 // The range of PCs where the locations are valid (end is exclusive). 46 uint64_t pc_start = 0; 47 uint64_t pc_end = 0; 48 }; 49 50 } // namespace unwindstack 51