115 lines
4.2 KiB
C++
115 lines
4.2 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_SYSTEM_SNAPSHOT_LINUX_H_
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#define CRASHPAD_SNAPSHOT_LINUX_SYSTEM_SNAPSHOT_LINUX_H_
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#include <stdint.h>
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#include <time.h>
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#include <string>
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#include "build/build_config.h"
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#include "snapshot/linux/process_reader_linux.h"
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#include "snapshot/system_snapshot.h"
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#include "util/misc/initialization_state_dcheck.h"
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#if defined(ARCH_CPU_X86_FAMILY)
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#include "snapshot/x86/cpuid_reader.h"
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#endif // ARCH_CPU_X86_FAMILY
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namespace crashpad {
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namespace internal {
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//! \brief A SystemSnapshot of the running system, when the system runs Linux.
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class SystemSnapshotLinux final : public SystemSnapshot {
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public:
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SystemSnapshotLinux();
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SystemSnapshotLinux(const SystemSnapshotLinux&) = delete;
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SystemSnapshotLinux& operator=(const SystemSnapshotLinux&) = delete;
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~SystemSnapshotLinux() override;
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//! \brief Initializes the object.
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//!
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//! \param[in] process_reader A reader for the process being snapshotted.
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//! \n\n
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//! It seems odd that a system snapshot implementation would need a
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//! ProcessReaderLinux, but some of the information reported about the
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//! system depends on the process it’s being reported for. For example,
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//! the architecture returned by GetCPUArchitecture() should be the
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//! architecture of the process, which may be different than the native
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//! architecture of the system: an x86_64 system can run both x86_64 and
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//! 32-bit x86 processes.
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//! \param[in] snapshot_time The time of the snapshot being taken.
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//! \n\n
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//! This parameter is necessary for TimeZone() to determine whether
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//! daylight saving time was in effect at the time the snapshot was taken.
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//! Otherwise, it would need to base its determination on the current
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//! time, which may be different than the snapshot time for snapshots
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//! generated around the daylight saving transition time.
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void Initialize(ProcessReaderLinux* process_reader,
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const timeval* snapshot_time);
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// SystemSnapshot:
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CPUArchitecture GetCPUArchitecture() const override;
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uint32_t CPURevision() const override;
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uint8_t CPUCount() const override;
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std::string CPUVendor() const override;
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void CPUFrequency(uint64_t* current_hz, uint64_t* max_hz) const override;
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uint32_t CPUX86Signature() const override;
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uint64_t CPUX86Features() const override;
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uint64_t CPUX86ExtendedFeatures() const override;
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uint32_t CPUX86Leaf7Features() const override;
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bool CPUX86SupportsDAZ() const override;
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OperatingSystem GetOperatingSystem() const override;
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bool OSServer() const override;
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void OSVersion(int* major,
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int* minor,
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int* bugfix,
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std::string* build) const override;
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std::string OSVersionFull() const override;
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bool NXEnabled() const override;
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std::string MachineDescription() const override;
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void TimeZone(DaylightSavingTimeStatus* dst_status,
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int* standard_offset_seconds,
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int* daylight_offset_seconds,
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std::string* standard_name,
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std::string* daylight_name) const override;
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private:
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void ReadKernelVersion(const std::string& version_string);
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std::string os_version_full_;
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std::string os_version_build_;
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ProcessReaderLinux* process_reader_; // weak
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const timeval* snapshot_time_; // weak
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#if defined(ARCH_CPU_X86_FAMILY)
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CpuidReader cpuid_;
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#endif // ARCH_CPU_X86_FAMILY
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int os_version_major_;
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int os_version_minor_;
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int os_version_bugfix_;
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uint32_t target_cpu_;
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uint8_t cpu_count_;
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InitializationStateDcheck initialized_;
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};
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} // namespace internal
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} // namespace crashpad
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#endif // CRASHPAD_SNAPSHOT_LINUX_SYSTEM_SNAPSHOT_LINUX_H_
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