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112 lines
2.8 KiB
112 lines
2.8 KiB
/* |
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* Copyright (C) 2016 The Android Open Source Project |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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#ifndef _LIBUNWINDSTACK_ARM_EXIDX_H |
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#define _LIBUNWINDSTACK_ARM_EXIDX_H |
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#include <stdint.h> |
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#include <deque> |
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namespace unwindstack { |
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// Forward declarations. |
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class Memory; |
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class RegsArm; |
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enum ArmStatus : size_t { |
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ARM_STATUS_NONE = 0, |
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ARM_STATUS_NO_UNWIND, |
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ARM_STATUS_FINISH, |
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ARM_STATUS_RESERVED, |
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ARM_STATUS_SPARE, |
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ARM_STATUS_TRUNCATED, |
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ARM_STATUS_READ_FAILED, |
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ARM_STATUS_MALFORMED, |
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ARM_STATUS_INVALID_ALIGNMENT, |
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ARM_STATUS_INVALID_PERSONALITY, |
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}; |
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enum ArmOp : uint8_t { |
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ARM_OP_FINISH = 0xb0, |
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}; |
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class ArmExidx { |
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public: |
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ArmExidx(RegsArm* regs, Memory* elf_memory, Memory* process_memory) |
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: regs_(regs), elf_memory_(elf_memory), process_memory_(process_memory) {} |
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virtual ~ArmExidx() {} |
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void LogRawData(); |
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bool ExtractEntryData(uint32_t entry_offset); |
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bool Eval(); |
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bool Decode(); |
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std::deque<uint8_t>* data() { return &data_; } |
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ArmStatus status() { return status_; } |
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RegsArm* regs() { return regs_; } |
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uint32_t cfa() { return cfa_; } |
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void set_cfa(uint32_t cfa) { cfa_ = cfa; } |
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bool pc_set() { return pc_set_; } |
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void set_pc_set(bool pc_set) { pc_set_ = pc_set; } |
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void set_log(bool log) { log_ = log; } |
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void set_log_skip_execution(bool skip_execution) { log_skip_execution_ = skip_execution; } |
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void set_log_indent(uint8_t indent) { log_indent_ = indent; } |
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private: |
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bool GetByte(uint8_t* byte); |
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bool DecodePrefix_10_00(uint8_t byte); |
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bool DecodePrefix_10_01(uint8_t byte); |
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bool DecodePrefix_10_10(uint8_t byte); |
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bool DecodePrefix_10_11_0000(); |
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bool DecodePrefix_10_11_0001(); |
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bool DecodePrefix_10_11_0010(); |
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bool DecodePrefix_10_11_0011(); |
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bool DecodePrefix_10_11_01nn(); |
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bool DecodePrefix_10_11_1nnn(uint8_t byte); |
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bool DecodePrefix_10(uint8_t byte); |
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bool DecodePrefix_11_000(uint8_t byte); |
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bool DecodePrefix_11_001(uint8_t byte); |
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bool DecodePrefix_11_010(uint8_t byte); |
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bool DecodePrefix_11(uint8_t byte); |
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RegsArm* regs_ = nullptr; |
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uint32_t cfa_ = 0; |
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std::deque<uint8_t> data_; |
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ArmStatus status_ = ARM_STATUS_NONE; |
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Memory* elf_memory_; |
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Memory* process_memory_; |
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bool log_ = false; |
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uint8_t log_indent_ = 0; |
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bool log_skip_execution_ = false; |
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bool pc_set_ = false; |
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}; |
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} // namespace unwindstack |
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#endif // _LIBUNWINDSTACK_ARM_EXIDX_H
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