| // Copyright 2017 The Crashpad Authors |
| // |
| // 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 CRASHPAD_SNAPSHOT_LINUX_PROCESS_SNAPSHOT_LINUX_H_ |
| #define CRASHPAD_SNAPSHOT_LINUX_PROCESS_SNAPSHOT_LINUX_H_ |
| |
| #include <sys/time.h> |
| #include <sys/types.h> |
| |
| #include <map> |
| #include <memory> |
| #include <string> |
| #include <vector> |
| |
| #include "snapshot/crashpad_info_client_options.h" |
| #include "snapshot/elf/module_snapshot_elf.h" |
| #include "snapshot/linux/exception_snapshot_linux.h" |
| #include "snapshot/linux/process_reader_linux.h" |
| #include "snapshot/linux/system_snapshot_linux.h" |
| #include "snapshot/linux/thread_snapshot_linux.h" |
| #include "snapshot/memory_map_region_snapshot.h" |
| #include "snapshot/module_snapshot.h" |
| #include "snapshot/process_snapshot.h" |
| #include "snapshot/system_snapshot.h" |
| #include "snapshot/thread_snapshot.h" |
| #include "snapshot/unloaded_module_snapshot.h" |
| #include "util/linux/ptrace_connection.h" |
| #include "util/misc/initialization_state_dcheck.h" |
| #include "util/misc/uuid.h" |
| #include "util/process/process_id.h" |
| #include "util/process/process_memory_range.h" |
| |
| namespace crashpad { |
| |
| //! \brief A ProcessSnapshot of a running (or crashed) process running on a |
| //! Linux system. |
| class ProcessSnapshotLinux final : public ProcessSnapshot { |
| public: |
| ProcessSnapshotLinux(); |
| |
| ProcessSnapshotLinux(const ProcessSnapshotLinux&) = delete; |
| ProcessSnapshotLinux& operator=(const ProcessSnapshotLinux&) = delete; |
| |
| ~ProcessSnapshotLinux() override; |
| |
| //! \brief Initializes the object. |
| //! |
| //! \param[in] connection A connection to the process to snapshot. |
| //! |
| //! \return `true` if the snapshot could be created, `false` otherwise with |
| //! an appropriate message logged. |
| bool Initialize(PtraceConnection* connection); |
| |
| //! \brief Finds the thread whose stack contains \a stack_address. |
| //! |
| //! \param[in] stack_address A stack address to search for. |
| //! \return The thread ID of the thread whose stack contains \a stack_address |
| //! or -1 if no matching thread is found. |
| pid_t FindThreadWithStackAddress(VMAddress stack_address); |
| |
| //! \brief Initializes the object's exception. |
| //! |
| //! \param[in] exception_info The address of an ExceptionInformation in the |
| //! target process' address space. |
| //! \param[in] exception_thread_id The thread ID to assocaite the thread with. |
| //! Optional. If -1, the exception thread will be identified by the |
| //! ExceptionInformation struct which contains the thread ID in the target |
| //! process' namespace. |
| bool InitializeException(LinuxVMAddress exception_info, |
| pid_t exception_thread_id = -1); |
| |
| //! \brief Sets the value to be returned by ReportID(). |
| //! |
| //! The crash report ID is under the control of the snapshot |
| //! producer, which may call this method to set the report ID. If this is not |
| //! done, ReportID() will return an identifier consisting entirely of zeroes. |
| void SetReportID(const UUID& report_id) { report_id_ = report_id; } |
| |
| //! \brief Sets the value to be returned by ClientID(). |
| //! |
| //! The client ID is under the control of the snapshot producer, |
| //! which may call this method to set the client ID. If this is not done, |
| //! ClientID() will return an identifier consisting entirely of zeroes. |
| void SetClientID(const UUID& client_id) { client_id_ = client_id; } |
| |
| //! \brief Add an annotation to be returned by AnnotationsSimpleMap(). |
| //! |
| //! Most process annotations are under the control of the snapshot |
| //! producer, which may call this method to establish these annotations. |
| //! On Android Q or later, the process snapshot may add an "abort_message" |
| //! annotation, which will contain the abort message passed to the |
| //! android_set_abort_message() function. Contrast this with module |
| //! annotations, which are under the control of the process being snapshotted. |
| void AddAnnotation(const std::string& key, const std::string& value) { |
| annotations_simple_map_[key] = value; |
| } |
| |
| //! \brief Returns options from CrashpadInfo structures found in modules in |
| //! the process. |
| //! |
| //! \param[out] options Options set in CrashpadInfo structures in modules in |
| //! the process. |
| void GetCrashpadOptions(CrashpadInfoClientOptions* options); |
| |
| // ProcessSnapshot: |
| |
| crashpad::ProcessID ProcessID() const override; |
| crashpad::ProcessID ParentProcessID() const override; |
| void SnapshotTime(timeval* snapshot_time) const override; |
| void ProcessStartTime(timeval* start_time) const override; |
| void ProcessCPUTimes(timeval* user_time, timeval* system_time) const override; |
| void ReportID(UUID* report_id) const override; |
| void ClientID(UUID* client_id) const override; |
| const std::map<std::string, std::string>& AnnotationsSimpleMap() |
| const override; |
| const SystemSnapshot* System() const override; |
| std::vector<const ThreadSnapshot*> Threads() const override; |
| std::vector<const ModuleSnapshot*> Modules() const override; |
| std::vector<UnloadedModuleSnapshot> UnloadedModules() const override; |
| const ExceptionSnapshot* Exception() const override; |
| std::vector<const MemoryMapRegionSnapshot*> MemoryMap() const override; |
| std::vector<HandleSnapshot> Handles() const override; |
| std::vector<const MemorySnapshot*> ExtraMemory() const override; |
| const ProcessMemory* Memory() const override; |
| |
| private: |
| void InitializeThreads(); |
| void InitializeModules(); |
| void InitializeAnnotations(); |
| |
| // Initializes options_ on behalf of Initialize(). |
| void GetCrashpadOptionsInternal(CrashpadInfoClientOptions* options); |
| |
| std::map<std::string, std::string> annotations_simple_map_; |
| timeval snapshot_time_; |
| UUID report_id_; |
| UUID client_id_; |
| std::vector<std::unique_ptr<internal::ThreadSnapshotLinux>> threads_; |
| std::vector<std::unique_ptr<internal::ModuleSnapshotElf>> modules_; |
| std::unique_ptr<internal::ExceptionSnapshotLinux> exception_; |
| internal::SystemSnapshotLinux system_; |
| ProcessReaderLinux process_reader_; |
| ProcessMemoryRange memory_range_; |
| CrashpadInfoClientOptions options_; |
| InitializationStateDcheck initialized_; |
| }; |
| |
| } // namespace crashpad |
| |
| #endif // CRASHPAD_SNAPSHOT_LINUX_PROCESS_SNAPSHOT_LINUX_H_ |