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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_UNWIND_STACK_H
#define _LIBBACKTRACE_UNWIND_STACK_H
#include <stdint.h>
#include <string>
#include <backtrace/BacktraceMap.h>
#include <unwindstack/Memory.h>
#include "BacktraceCurrent.h"
#include "BacktracePtrace.h"
class UnwindStackCurrent : public BacktraceCurrent {
public:
UnwindStackCurrent(pid_t pid, pid_t tid, BacktraceMap* map);
virtual ~UnwindStackCurrent() = default;
std::string GetFunctionNameRaw(uint64_t pc, uint64_t* offset) override;
bool UnwindFromContext(size_t num_ignore_frames, void* ucontext) override;
};
class UnwindStackPtrace : public BacktracePtrace {
public:
UnwindStackPtrace(pid_t pid, pid_t tid, BacktraceMap* map);
virtual ~UnwindStackPtrace() = default;
bool Unwind(size_t num_ignore_frames, void* context) override;
std::string GetFunctionNameRaw(uint64_t pc, uint64_t* offset) override;
size_t Read(uint64_t addr, uint8_t* buffer, size_t bytes) override;
private:
unwindstack::MemoryRemote memory_;
};
class UnwindStackOffline : public Backtrace {
public:
UnwindStackOffline(ArchEnum arch, pid_t pid, pid_t tid, BacktraceMap* map, bool map_shared);
bool Unwind(size_t num_ignore_frames, void* context) override;
std::string GetFunctionNameRaw(uint64_t pc, uint64_t* offset) override;
size_t Read(uint64_t addr, uint8_t* buffer, size_t bytes) override;
bool ReadWord(uint64_t ptr, word_t* out_value) override;
private:
ArchEnum arch_;
};
#endif // _LIBBACKTRACE_UNWIND_STACK_H
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