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/*
* Copyright (C) 2020 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.
*/
#pragma once
#include <unwindstack/Maps.h>
#include <unwindstack/Regs.h>
#include "thread_tree.h"
namespace simpleperf {
class UnwindMaps : public unwindstack::Maps {
public:
void UpdateMaps(const MapSet& map_set);
private:
uint64_t version_ = 0u;
std::vector<const MapEntry*> entries_;
};
class OfflineUnwinderImpl : public OfflineUnwinder {
public:
OfflineUnwinderImpl(bool collect_stat) : collect_stat_(collect_stat) {
unwindstack::Elf::SetCachingEnabled(true);
}
bool UnwindCallChain(const ThreadEntry& thread, const RegSet& regs, const char* stack,
size_t stack_size, std::vector<uint64_t>* ips,
std::vector<uint64_t>* sps) override;
void LoadMetaInfo(const std::unordered_map<std::string, std::string>& info_map) override;
unwindstack::Regs* GetBacktraceRegs(const RegSet& regs);
private:
bool collect_stat_;
std::unordered_map<pid_t, UnwindMaps> cached_maps_;
uint64_t arm64_pac_mask_ = 0;
};
} // namespace simpleperf
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