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/*
* Copyright (C) 2017 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 _LIBBACKTRACE_UNWINDSTACK_MAP_H
#define _LIBBACKTRACE_UNWINDSTACK_MAP_H
#include <stdint.h>
#include <sys/types.h>
#include <memory>
#include <mutex>
#include <unordered_map>
#include <vector>
#include <backtrace/Backtrace.h>
#include <backtrace/BacktraceMap.h>
#if !defined(NO_LIBDEXFILE_SUPPORT)
#include <unwindstack/DexFiles.h>
#endif
#include <unwindstack/Elf.h>
#include <unwindstack/JitDebug.h>
#include <unwindstack/Maps.h>
// Forward declarations.
class UnwindDexFile;
class UnwindStackMap : public BacktraceMap {
public:
explicit UnwindStackMap(pid_t pid);
~UnwindStackMap() = default;
bool Build() override;
void FillIn(uint64_t addr, backtrace_map_t* map) override;
virtual std::string GetFunctionName(uint64_t pc, uint64_t* offset) override;
virtual std::shared_ptr<unwindstack::Memory> GetProcessMemory() override final;
unwindstack::Maps* stack_maps() { return stack_maps_.get(); }
const std::shared_ptr<unwindstack::Memory>& process_memory() { return process_memory_; }
unwindstack::JitDebug* GetJitDebug() { return jit_debug_.get(); }
#if !defined(NO_LIBDEXFILE_SUPPORT)
unwindstack::DexFiles* GetDexFiles() { return dex_files_.get(); }
#endif
void SetArch(unwindstack::ArchEnum arch) { arch_ = arch; }
protected:
uint64_t GetLoadBias(size_t index) override;
std::unique_ptr<unwindstack::Maps> stack_maps_;
std::shared_ptr<unwindstack::Memory> process_memory_;
std::unique_ptr<unwindstack::JitDebug> jit_debug_;
#if !defined(NO_LIBDEXFILE_SUPPORT)
std::unique_ptr<unwindstack::DexFiles> dex_files_;
#endif
unwindstack::ArchEnum arch_ = unwindstack::ARCH_UNKNOWN;
};
class UnwindStackOfflineMap : public UnwindStackMap {
public:
UnwindStackOfflineMap(pid_t pid);
~UnwindStackOfflineMap() = default;
bool Build() override;
bool Build(const std::vector<backtrace_map_t>& maps);
bool CreateProcessMemory(const backtrace_stackinfo_t& stack);
private:
unwindstack::MemoryOfflineBuffer* memory_ = nullptr;
};
#endif // _LIBBACKTRACE_UNWINDSTACK_MAP_H