1/*
2 * Copyright (C) 2017 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef _LIBBACKTRACE_UNWINDSTACK_MAP_H
18#define _LIBBACKTRACE_UNWINDSTACK_MAP_H
19
20#include <stdint.h>
21#include <sys/types.h>
22
23#include <memory>
24#include <mutex>
25#include <unordered_map>
26#include <vector>
27
28#include <backtrace/Backtrace.h>
29#include <backtrace/BacktraceMap.h>
30#if !defined(NO_LIBDEXFILE_SUPPORT)
31#include <unwindstack/DexFiles.h>
32#endif
33#include <unwindstack/JitDebug.h>
34#include <unwindstack/Maps.h>
35
36// Forward declarations.
37class UnwindDexFile;
38
39class UnwindStackMap : public BacktraceMap {
40 public:
41  explicit UnwindStackMap(pid_t pid);
42  ~UnwindStackMap() = default;
43
44  bool Build() override;
45
46  void FillIn(uint64_t addr, backtrace_map_t* map) override;
47
48  virtual std::string GetFunctionName(uint64_t pc, uint64_t* offset) override;
49  virtual std::shared_ptr<unwindstack::Memory> GetProcessMemory() override final;
50
51  unwindstack::Maps* stack_maps() { return stack_maps_.get(); }
52
53  const std::shared_ptr<unwindstack::Memory>& process_memory() { return process_memory_; }
54
55  unwindstack::JitDebug* GetJitDebug() { return jit_debug_.get(); }
56
57#if !defined(NO_LIBDEXFILE_SUPPORT)
58  unwindstack::DexFiles* GetDexFiles() { return dex_files_.get(); }
59#endif
60
61 protected:
62  uint64_t GetLoadBias(size_t index) override;
63
64  std::unique_ptr<unwindstack::Maps> stack_maps_;
65  std::shared_ptr<unwindstack::Memory> process_memory_;
66  std::unique_ptr<unwindstack::JitDebug> jit_debug_;
67#if !defined(NO_LIBDEXFILE_SUPPORT)
68  std::unique_ptr<unwindstack::DexFiles> dex_files_;
69#endif
70};
71
72class UnwindStackOfflineMap : public UnwindStackMap {
73 public:
74  UnwindStackOfflineMap(pid_t pid);
75  ~UnwindStackOfflineMap() = default;
76
77  bool Build() override;
78
79  bool Build(const std::vector<backtrace_map_t>& maps);
80
81  bool CreateProcessMemory(const backtrace_stackinfo_t& stack);
82
83 private:
84  unwindstack::MemoryOfflineBuffer* memory_ = nullptr;
85};
86
87#endif  // _LIBBACKTRACE_UNWINDSTACK_MAP_H
88