1/*
2 * Copyright (c) 2021-2024 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16#ifndef DFX_PROCESSDUMP_H
17#define DFX_PROCESSDUMP_H
18
19#include <cinttypes>
20#include <condition_variable>
21#include <memory>
22#include <mutex>
23#include <string>
24#include <thread>
25
26#include "cppcrash_reporter.h"
27#include "dfx_dump_request.h"
28#include "dfx_process.h"
29#include "nocopyable.h"
30#include "unwinder.h"
31
32namespace OHOS {
33namespace HiviewDFX {
34class ProcessDumper final {
35public:
36    static ProcessDumper &GetInstance();
37    ~ProcessDumper() = default;
38
39    void Dump();
40    void WriteDumpRes(int32_t res);
41    bool IsCrash() const;
42
43private:
44    ProcessDumper() = default;
45    DISALLOW_COPY_AND_MOVE(ProcessDumper);
46    static int WriteDumpBuf(int fd, const char* buf, const int len);
47    int32_t CreateFileForCrash(int32_t pid, uint64_t time) const;
48    int DumpProcess(std::shared_ptr<ProcessDumpRequest> request);
49    bool InitKeyThread(std::shared_ptr<ProcessDumpRequest> request);
50    int InitPrintThread(std::shared_ptr<ProcessDumpRequest> request);
51    int InitProcessInfo(std::shared_ptr<ProcessDumpRequest> request);
52    bool InitVmThread(std::shared_ptr<ProcessDumpRequest> request);
53    bool InitUnwinder(std::shared_ptr<ProcessDumpRequest> request, pid_t &vmPid, int &dumpRes);
54    void InitRegs(std::shared_ptr<ProcessDumpRequest> request, int &dumpRes);
55    bool IsTargetProcessAlive(std::shared_ptr<ProcessDumpRequest> request);
56    bool Unwind(std::shared_ptr<ProcessDumpRequest> request, int &dumpRes, pid_t vmPid);
57    static int GetLogTypeByRequest(const ProcessDumpRequest &request);
58    void ReportSigDumpStats(const std::shared_ptr<ProcessDumpRequest> &request) const;
59    void ReportCrashInfo(const std::string& jsonInfo);
60    void UnwindWriteJit(const ProcessDumpRequest &request);
61    void Report(std::shared_ptr<ProcessDumpRequest> request, std::string &jsonInfo);
62    void ReadFdTable(const ProcessDumpRequest &request);
63    static std::string ReadStringByPtrace(pid_t tid, uintptr_t addr);
64    void GetCrashObj(std::shared_ptr<ProcessDumpRequest> request);
65    void ReportAddrSanitizer(ProcessDumpRequest &request, std::string &jsonInfo);
66
67private:
68    std::shared_ptr<DfxProcess> process_ = nullptr;
69    std::shared_ptr<CppCrashReporter> reporter_ = nullptr;
70    std::shared_ptr<Unwinder> unwinder_ = nullptr;
71
72    bool isCrash_ = false;
73    bool isJsonDump_ = false;
74    int32_t resFd_ = -1;
75    int32_t jsonFd_ = -1;
76    int32_t resDump_ = 0;
77
78    uint64_t startTime_ = 0;
79    uint64_t finishTime_ = 0;
80};
81} // namespace HiviewDFX
82} // namespace OHOS
83
84#endif  // DFX_PROCESSDUMP_H
85