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83 lines
2.2 KiB
83 lines
2.2 KiB
/* |
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* Copyright (C) 2015 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 _LIBBACKTRACE_UNWIND_OFFLINE_H |
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#define _LIBBACKTRACE_UNWIND_OFFLINE_H |
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#include <libunwind.h> |
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#include <stdint.h> |
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#include <sys/types.h> |
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#include <ucontext.h> |
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#include <unordered_map> |
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#include <unordered_set> |
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#include <backtrace/Backtrace.h> |
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struct Space { |
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uint64_t start; |
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uint64_t end; |
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const uint8_t* data; |
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Space() { |
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Clear(); |
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} |
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void Clear(); |
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size_t Read(uint64_t addr, uint8_t* buffer, size_t size); |
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}; |
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struct DebugFrameInfo; |
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class BacktraceOffline : public Backtrace { |
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public: |
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BacktraceOffline(pid_t pid, pid_t tid, BacktraceMap* map, const backtrace_stackinfo_t& stack, |
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bool cache_file) |
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: Backtrace(pid, tid, map), |
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cache_file_(cache_file), |
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context_(nullptr) { |
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stack_space_.start = stack.start; |
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stack_space_.end = stack.end; |
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stack_space_.data = stack.data; |
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} |
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virtual ~BacktraceOffline() = default; |
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bool Unwind(size_t num_ignore_frames, ucontext_t* context) override; |
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bool ReadWord(uintptr_t ptr, word_t* out_value) override; |
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size_t Read(uintptr_t addr, uint8_t* buffer, size_t bytes) override; |
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bool FindProcInfo(unw_addr_space_t addr_space, uint64_t ip, unw_proc_info_t* proc_info, |
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int need_unwind_info); |
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bool ReadReg(size_t reg_index, uint64_t* value); |
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protected: |
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std::string GetFunctionNameRaw(uintptr_t pc, uintptr_t* offset) override; |
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DebugFrameInfo* GetDebugFrameInFile(const std::string& filename); |
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bool cache_file_; |
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ucontext_t* context_; |
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Space eh_frame_hdr_space_; |
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Space eh_frame_space_; |
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Space arm_extab_space_; |
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Space arm_exidx_space_; |
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Space stack_space_; |
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}; |
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#endif // _LIBBACKTRACE_BACKTRACE_OFFLINE_H
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