162 lines
6.5 KiB
C++
162 lines
6.5 KiB
C++
// Copyright 2017 The Crashpad Authors. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef CRASHPAD_SNAPSHOT_LINUX_PROCESS_SNAPSHOT_LINUX_H_
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#define CRASHPAD_SNAPSHOT_LINUX_PROCESS_SNAPSHOT_LINUX_H_
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#include <sys/time.h>
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#include <sys/types.h>
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#include <map>
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#include <memory>
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#include <string>
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#include <vector>
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#include "snapshot/crashpad_info_client_options.h"
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#include "snapshot/elf/module_snapshot_elf.h"
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#include "snapshot/linux/exception_snapshot_linux.h"
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#include "snapshot/linux/process_reader_linux.h"
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#include "snapshot/linux/system_snapshot_linux.h"
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#include "snapshot/linux/thread_snapshot_linux.h"
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#include "snapshot/memory_map_region_snapshot.h"
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#include "snapshot/module_snapshot.h"
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#include "snapshot/process_snapshot.h"
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#include "snapshot/system_snapshot.h"
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#include "snapshot/thread_snapshot.h"
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#include "snapshot/unloaded_module_snapshot.h"
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#include "util/linux/ptrace_connection.h"
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#include "util/misc/initialization_state_dcheck.h"
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#include "util/misc/uuid.h"
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#include "util/process/process_id.h"
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#include "util/process/process_memory_range.h"
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namespace crashpad {
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//! \brief A ProcessSnapshot of a running (or crashed) process running on a
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//! Linux system.
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class ProcessSnapshotLinux final : public ProcessSnapshot {
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public:
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ProcessSnapshotLinux();
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ProcessSnapshotLinux(const ProcessSnapshotLinux&) = delete;
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ProcessSnapshotLinux& operator=(const ProcessSnapshotLinux&) = delete;
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~ProcessSnapshotLinux() override;
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//! \brief Initializes the object.
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//!
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//! \param[in] connection A connection to the process to snapshot.
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//!
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//! \return `true` if the snapshot could be created, `false` otherwise with
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//! an appropriate message logged.
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bool Initialize(PtraceConnection* connection);
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//! \brief Finds the thread whose stack contains \a stack_address.
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//!
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//! \param[in] stack_address A stack address to search for.
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//! \return The thread ID of the thread whose stack contains \a stack_address
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//! or -1 if no matching thread is found.
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pid_t FindThreadWithStackAddress(VMAddress stack_address);
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//! \brief Initializes the object's exception.
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//!
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//! \param[in] exception_info The address of an ExceptionInformation in the
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//! target process' address space.
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//! \param[in] exception_thread_id The thread ID to assocaite the thread with.
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//! Optional. If -1, the exception thread will be identified by the
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//! ExceptionInformation struct which contains the thread ID in the target
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//! process' namespace.
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bool InitializeException(LinuxVMAddress exception_info,
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pid_t exception_thread_id = -1);
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//! \brief Sets the value to be returned by ReportID().
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//!
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//! The crash report ID is under the control of the snapshot
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//! producer, which may call this method to set the report ID. If this is not
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//! done, ReportID() will return an identifier consisting entirely of zeroes.
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void SetReportID(const UUID& report_id) { report_id_ = report_id; }
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//! \brief Sets the value to be returned by ClientID().
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//!
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//! The client ID is under the control of the snapshot producer,
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//! which may call this method to set the client ID. If this is not done,
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//! ClientID() will return an identifier consisting entirely of zeroes.
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void SetClientID(const UUID& client_id) { client_id_ = client_id; }
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//! \brief Add an annotation to be returned by AnnotationsSimpleMap().
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//!
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//! Most process annotations are under the control of the snapshot
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//! producer, which may call this method to establish these annotations.
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//! On Android Q or later, the process snapshot may add an "abort_message"
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//! annotation, which will contain the abort message passed to the
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//! android_set_abort_message() function. Contrast this with module
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//! annotations, which are under the control of the process being snapshotted.
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void AddAnnotation(const std::string& key, const std::string& value) {
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annotations_simple_map_[key] = value;
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}
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//! \brief Returns options from CrashpadInfo structures found in modules in
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//! the process.
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//!
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//! \param[out] options Options set in CrashpadInfo structures in modules in
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//! the process.
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void GetCrashpadOptions(CrashpadInfoClientOptions* options);
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// ProcessSnapshot:
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crashpad::ProcessID ProcessID() const override;
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crashpad::ProcessID ParentProcessID() const override;
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void SnapshotTime(timeval* snapshot_time) const override;
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void ProcessStartTime(timeval* start_time) const override;
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void ProcessCPUTimes(timeval* user_time, timeval* system_time) const override;
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void ReportID(UUID* report_id) const override;
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void ClientID(UUID* client_id) const override;
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const std::map<std::string, std::string>& AnnotationsSimpleMap()
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const override;
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const SystemSnapshot* System() const override;
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std::vector<const ThreadSnapshot*> Threads() const override;
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std::vector<const ModuleSnapshot*> Modules() const override;
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std::vector<UnloadedModuleSnapshot> UnloadedModules() const override;
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const ExceptionSnapshot* Exception() const override;
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std::vector<const MemoryMapRegionSnapshot*> MemoryMap() const override;
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std::vector<HandleSnapshot> Handles() const override;
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std::vector<const MemorySnapshot*> ExtraMemory() const override;
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const ProcessMemory* Memory() const override;
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private:
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void InitializeThreads();
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void InitializeModules();
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void InitializeAnnotations();
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// Initializes options_ on behalf of Initialize().
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void GetCrashpadOptionsInternal(CrashpadInfoClientOptions* options);
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std::map<std::string, std::string> annotations_simple_map_;
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timeval snapshot_time_;
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UUID report_id_;
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UUID client_id_;
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std::vector<std::unique_ptr<internal::ThreadSnapshotLinux>> threads_;
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std::vector<std::unique_ptr<internal::ModuleSnapshotElf>> modules_;
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std::unique_ptr<internal::ExceptionSnapshotLinux> exception_;
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internal::SystemSnapshotLinux system_;
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ProcessReaderLinux process_reader_;
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ProcessMemoryRange memory_range_;
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CrashpadInfoClientOptions options_;
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InitializationStateDcheck initialized_;
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};
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} // namespace crashpad
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#endif // CRASHPAD_SNAPSHOT_LINUX_PROCESS_SNAPSHOT_LINUX_H_
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