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 _LIBUNWINDSTACK_DWARF_LOCATION_H 18 #define _LIBUNWINDSTACK_DWARF_LOCATION_H 19 20 #include <stdint.h> 21 22 #include <unordered_map> 23 24 namespace unwindstack { 25 26 struct DwarfCie; 27 28 enum DwarfLocationEnum : uint8_t { 29 DWARF_LOCATION_INVALID = 0, 30 DWARF_LOCATION_UNDEFINED, 31 DWARF_LOCATION_OFFSET, 32 DWARF_LOCATION_VAL_OFFSET, 33 DWARF_LOCATION_REGISTER, 34 DWARF_LOCATION_EXPRESSION, 35 DWARF_LOCATION_VAL_EXPRESSION, 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 typedef DwarfLocations dwarf_loc_regs_t; 50 51 } // namespace unwindstack 52 53 #endif // _LIBUNWINDSTACK_DWARF_LOCATION_H 54