platform_system_core/libunwindstack/DwarfStructs.h
Christopher Ferris 8642fcbad2 Add the Dwarf CFA handling.
Bug: 23762183

Test: Ran new unit tests.
Change-Id: I31abac1238cc671b78a505da655fb6298be072b4
2017-04-24 13:24:33 -07:00

52 lines
1.5 KiB
C++

/*
* Copyright (C) 2016 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef _LIBUNWINDSTACK_DWARF_STRUCTS_H
#define _LIBUNWINDSTACK_DWARF_STRUCTS_H
#include <stdint.h>
#include <vector>
#include "DwarfEncoding.h"
struct DwarfCIE {
uint8_t version = 0;
uint8_t fde_address_encoding = DW_EH_PE_absptr;
uint8_t lsda_encoding = DW_EH_PE_omit;
uint8_t segment_size = 0;
std::vector<char> augmentation_string;
uint64_t personality_handler = 0;
uint64_t cfa_instructions_offset = 0;
uint64_t cfa_instructions_end = 0;
uint64_t code_alignment_factor = 0;
int64_t data_alignment_factor = 0;
uint64_t return_address_register = 0;
};
struct DwarfFDE {
uint64_t cie_offset = 0;
uint64_t cfa_instructions_offset = 0;
uint64_t cfa_instructions_end = 0;
uint64_t pc_start = 0;
uint64_t pc_end = 0;
uint64_t lsda_address = 0;
const DwarfCIE* cie = nullptr;
};
constexpr uint16_t CFA_REG = static_cast<uint16_t>(-1);
#endif // _LIBUNWINDSTACK_DWARF_STRUCTS_H