506 lines
17 KiB
C++
506 lines
17 KiB
C++
// Copyright 2015 The Crashpad Authors. All rights reserved.
|
|
//
|
|
// 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.
|
|
|
|
#include "snapshot/win/system_snapshot_win.h"
|
|
|
|
#include <intrin.h>
|
|
#include <powrprof.h>
|
|
#include <windows.h>
|
|
#include <winnt.h>
|
|
|
|
// Must be after windows.h.
|
|
#include <versionhelpers.h>
|
|
|
|
#include <algorithm>
|
|
#include <utility>
|
|
#include <vector>
|
|
|
|
#include "base/check_op.h"
|
|
#include "base/logging.h"
|
|
#include "base/notreached.h"
|
|
#include "base/numerics/safe_conversions.h"
|
|
#include "base/strings/stringprintf.h"
|
|
#include "base/strings/utf_string_conversions.h"
|
|
#include "build/build_config.h"
|
|
#include "util/stdlib/string_number_conversion.h"
|
|
#include "util/win/module_version.h"
|
|
#include "util/win/scoped_registry_key.h"
|
|
|
|
namespace crashpad {
|
|
|
|
namespace {
|
|
|
|
//! \brief Gets a string representation for a VS_FIXEDFILEINFO.dwFileFlags
|
|
//! value.
|
|
std::string GetStringForFileFlags(uint32_t file_flags) {
|
|
std::string result;
|
|
DCHECK_EQ(file_flags & VS_FF_INFOINFERRED, 0u);
|
|
if (file_flags & VS_FF_DEBUG)
|
|
result += "Debug,";
|
|
if (file_flags & VS_FF_PATCHED)
|
|
result += "Patched,";
|
|
if (file_flags & VS_FF_PRERELEASE)
|
|
result += "Prerelease,";
|
|
if (file_flags & VS_FF_PRIVATEBUILD)
|
|
result += "Private,";
|
|
if (file_flags & VS_FF_SPECIALBUILD)
|
|
result += "Special,";
|
|
if (!result.empty())
|
|
return result.substr(0, result.size() - 1); // Remove trailing comma.
|
|
return result;
|
|
}
|
|
|
|
//! \brief Gets a string representation for a VS_FIXEDFILEINFO.dwFileOS value.
|
|
std::string GetStringForFileOS(uint32_t file_os) {
|
|
// There are a variety of ancient things this could theoretically be. In
|
|
// practice, we're always going to get VOS_NT_WINDOWS32 here.
|
|
if ((file_os & VOS_NT_WINDOWS32) == VOS_NT_WINDOWS32)
|
|
return "Windows NT";
|
|
else
|
|
return "Unknown";
|
|
}
|
|
|
|
//! \brief Reads a DWORD from the registry and returns it as an int.
|
|
bool ReadRegistryDWORD(HKEY key, const wchar_t* name, int* out_value) {
|
|
DWORD type;
|
|
DWORD local_value;
|
|
DWORD size = sizeof(local_value);
|
|
if (RegQueryValueExW(key,
|
|
name,
|
|
nullptr,
|
|
&type,
|
|
reinterpret_cast<BYTE*>(&local_value),
|
|
&size) == ERROR_SUCCESS &&
|
|
type == REG_DWORD) {
|
|
*out_value = static_cast<int>(local_value);
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
//! \brief Reads a string from the registry and returns it as an int.
|
|
bool ReadRegistryDWORDFromSZ(HKEY key, const char* name, int* out_value) {
|
|
char string_value[11];
|
|
DWORD type;
|
|
// Leave space for a terminating zero.
|
|
DWORD size = sizeof(string_value) - sizeof(string_value[0]);
|
|
// Use the 'A' version of this function so that we can use
|
|
// StringToNumber.
|
|
if (RegQueryValueExA(key,
|
|
name,
|
|
nullptr,
|
|
&type,
|
|
reinterpret_cast<BYTE*>(&string_value),
|
|
&size) == ERROR_SUCCESS &&
|
|
type == REG_SZ) {
|
|
// Make sure the string is null-terminated.
|
|
string_value[size / sizeof(string_value[0])] = '\0';
|
|
unsigned local_value;
|
|
if (StringToNumber(string_value, &local_value)) {
|
|
*out_value = local_value;
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
} // namespace
|
|
|
|
namespace internal {
|
|
|
|
SystemSnapshotWin::SystemSnapshotWin()
|
|
: SystemSnapshot(),
|
|
os_version_full_(),
|
|
os_version_build_(),
|
|
process_reader_(nullptr),
|
|
os_version_major_(0),
|
|
os_version_minor_(0),
|
|
os_version_bugfix_(0),
|
|
os_server_(false),
|
|
initialized_() {}
|
|
|
|
SystemSnapshotWin::~SystemSnapshotWin() {}
|
|
|
|
void SystemSnapshotWin::Initialize(ProcessReaderWin* process_reader) {
|
|
INITIALIZATION_STATE_SET_INITIALIZING(initialized_);
|
|
|
|
process_reader_ = process_reader;
|
|
|
|
// We use both IsWindowsServer() (which uses VerifyVersionInfo() internally)
|
|
// and GetModuleVersionAndType() (which uses VerQueryValue() internally).
|
|
// VerifyVersionInfo() is not trustworthy after Windows 8 (depending on the
|
|
// application manifest) so its data is used only to fill the os_server_
|
|
// field, and the rest comes from the version information stamped on
|
|
// kernel32.dll and from the registry.
|
|
os_server_ = IsWindowsServer();
|
|
|
|
// kernel32.dll used to be a good way to get a non-lying version number, but
|
|
// kernel32.dll has been refactored into multiple DLLs so it sometimes does
|
|
// not get updated when a new version of Windows ships, especially on
|
|
// Windows 11. Additionally, pairs of releases such as 19041/19042
|
|
// (20H1/20H2) actually have identical code and have their differences
|
|
// enabled by a configuration setting. Therefore the recommended way to get
|
|
// OS version information on recent versions of Windows is to read it from the
|
|
// registry. If any of the version-number components are missing from the
|
|
// registry (on Windows 7, for instance) then kernel32.dll is used as a
|
|
// fallback.
|
|
bool version_data_found = false;
|
|
int os_version_build = 0;
|
|
HKEY key;
|
|
if (RegOpenKeyExW(HKEY_LOCAL_MACHINE,
|
|
L"SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion",
|
|
0,
|
|
KEY_QUERY_VALUE,
|
|
&key) == ERROR_SUCCESS) {
|
|
ScopedRegistryKey scoped_key(key);
|
|
|
|
// Read the four components of the version from the registry.
|
|
// UBR apparently stands for Update Build Revision and it goes up every
|
|
// month when patches are installed. The full version is stored in the
|
|
// registry as:
|
|
// CurrentMajorVersionNumber.CurrentMinorVersionNumber.CurrentBuildNumber.UBR
|
|
if (ReadRegistryDWORD(
|
|
key, L"CurrentMajorVersionNumber", &os_version_major_) &&
|
|
ReadRegistryDWORD(
|
|
key, L"CurrentMinorVersionNumber", &os_version_minor_) &&
|
|
ReadRegistryDWORDFromSZ(
|
|
key, "CurrentBuildNumber", &os_version_bugfix_) &&
|
|
ReadRegistryDWORD(key, L"UBR", &os_version_build)) {
|
|
// Since we found all four components in the registry we don't need
|
|
// to read them from kernel32.dll.
|
|
version_data_found = true;
|
|
}
|
|
}
|
|
|
|
static constexpr wchar_t kSystemDll[] = L"kernel32.dll";
|
|
VS_FIXEDFILEINFO ffi;
|
|
if (GetModuleVersionAndType(base::FilePath(kSystemDll), &ffi)) {
|
|
std::string flags_string = GetStringForFileFlags(ffi.dwFileFlags);
|
|
std::string os_name = GetStringForFileOS(ffi.dwFileOS);
|
|
if (!version_data_found) {
|
|
os_version_major_ = ffi.dwFileVersionMS >> 16;
|
|
os_version_minor_ = ffi.dwFileVersionMS & 0xffff;
|
|
os_version_bugfix_ = ffi.dwFileVersionLS >> 16;
|
|
os_version_build = static_cast<int>(ffi.dwFileVersionLS & 0xffff);
|
|
}
|
|
|
|
os_version_build_ = base::StringPrintf("%u", os_version_build);
|
|
|
|
os_version_full_ = base::StringPrintf(
|
|
"%s %u.%u.%u.%s%s",
|
|
os_name.c_str(),
|
|
os_version_major_,
|
|
os_version_minor_,
|
|
os_version_bugfix_,
|
|
os_version_build_.c_str(),
|
|
flags_string.empty()
|
|
? ""
|
|
: (std::string(" (") + flags_string + ")").c_str());
|
|
}
|
|
|
|
INITIALIZATION_STATE_SET_VALID(initialized_);
|
|
}
|
|
|
|
CPUArchitecture SystemSnapshotWin::GetCPUArchitecture() const {
|
|
INITIALIZATION_STATE_DCHECK_VALID(initialized_);
|
|
|
|
#if defined(ARCH_CPU_X86_FAMILY)
|
|
return process_reader_->Is64Bit() ? kCPUArchitectureX86_64
|
|
: kCPUArchitectureX86;
|
|
#elif defined(ARCH_CPU_ARM64)
|
|
return kCPUArchitectureARM64;
|
|
#else
|
|
#error Unsupported Windows Arch
|
|
#endif
|
|
}
|
|
|
|
uint32_t SystemSnapshotWin::CPURevision() const {
|
|
INITIALIZATION_STATE_DCHECK_VALID(initialized_);
|
|
|
|
#if defined(ARCH_CPU_X86_FAMILY)
|
|
uint32_t raw = CPUX86Signature();
|
|
uint8_t stepping = raw & 0xf;
|
|
uint8_t model = (raw & 0xf0) >> 4;
|
|
uint8_t family = (raw & 0xf00) >> 8;
|
|
uint8_t extended_model = static_cast<uint8_t>((raw & 0xf0000) >> 16);
|
|
uint16_t extended_family = (raw & 0xff00000) >> 20;
|
|
|
|
// For families before 15, extended_family are simply reserved bits.
|
|
if (family < 15)
|
|
extended_family = 0;
|
|
// extended_model is only used for families 6 and 15.
|
|
if (family != 6 && family != 15)
|
|
extended_model = 0;
|
|
|
|
uint16_t adjusted_family = family + extended_family;
|
|
uint8_t adjusted_model = model + (extended_model << 4);
|
|
return (adjusted_family << 16) | (adjusted_model << 8) | stepping;
|
|
#elif defined(ARCH_CPU_ARM64)
|
|
SYSTEM_INFO system_info;
|
|
GetSystemInfo(&system_info);
|
|
|
|
return system_info.wProcessorRevision;
|
|
#else
|
|
#error Unsupported Windows Arch
|
|
#endif
|
|
}
|
|
|
|
uint8_t SystemSnapshotWin::CPUCount() const {
|
|
INITIALIZATION_STATE_DCHECK_VALID(initialized_);
|
|
|
|
SYSTEM_INFO system_info;
|
|
GetSystemInfo(&system_info);
|
|
if (!base::IsValueInRangeForNumericType<uint8_t>(
|
|
system_info.dwNumberOfProcessors)) {
|
|
LOG(WARNING) << "dwNumberOfProcessors exceeds uint8_t storage";
|
|
}
|
|
return base::saturated_cast<uint8_t>(system_info.dwNumberOfProcessors);
|
|
}
|
|
|
|
std::string SystemSnapshotWin::CPUVendor() const {
|
|
INITIALIZATION_STATE_DCHECK_VALID(initialized_);
|
|
|
|
#if defined(ARCH_CPU_X86_FAMILY)
|
|
int cpu_info[4];
|
|
__cpuid(cpu_info, 0);
|
|
char vendor[12];
|
|
*reinterpret_cast<int*>(vendor) = cpu_info[1];
|
|
*reinterpret_cast<int*>(vendor + 4) = cpu_info[3];
|
|
*reinterpret_cast<int*>(vendor + 8) = cpu_info[2];
|
|
return std::string(vendor, sizeof(vendor));
|
|
#elif defined(ARCH_CPU_ARM64)
|
|
HKEY key;
|
|
|
|
if (RegOpenKeyExW(HKEY_LOCAL_MACHINE,
|
|
L"HARDWARE\\DESCRIPTION\\System\\CentralProcessor\\0",
|
|
0,
|
|
KEY_QUERY_VALUE,
|
|
&key) != ERROR_SUCCESS) {
|
|
return std::string();
|
|
}
|
|
|
|
crashpad::ScopedRegistryKey scoped_key(key);
|
|
DWORD type;
|
|
char16_t vendor_identifier[1024];
|
|
DWORD vendor_identifier_size = sizeof(vendor_identifier);
|
|
|
|
if (RegQueryValueEx(key,
|
|
L"VendorIdentifier",
|
|
nullptr,
|
|
&type,
|
|
reinterpret_cast<BYTE*>(vendor_identifier),
|
|
&vendor_identifier_size) != ERROR_SUCCESS ||
|
|
type != REG_SZ) {
|
|
return std::string();
|
|
}
|
|
|
|
std::string return_value;
|
|
DCHECK_EQ(vendor_identifier_size % sizeof(char16_t), 0u);
|
|
base::UTF16ToUTF8(vendor_identifier,
|
|
vendor_identifier_size / sizeof(char16_t),
|
|
&return_value);
|
|
|
|
return return_value.c_str();
|
|
#else
|
|
#error Unsupported Windows Arch
|
|
#endif
|
|
}
|
|
|
|
void SystemSnapshotWin::CPUFrequency(uint64_t* current_hz,
|
|
uint64_t* max_hz) const {
|
|
INITIALIZATION_STATE_DCHECK_VALID(initialized_);
|
|
|
|
int num_cpus = CPUCount();
|
|
DCHECK_GT(num_cpus, 0);
|
|
std::vector<PROCESSOR_POWER_INFORMATION> info(num_cpus);
|
|
if (CallNtPowerInformation(ProcessorInformation,
|
|
nullptr,
|
|
0,
|
|
&info[0],
|
|
sizeof(PROCESSOR_POWER_INFORMATION) * num_cpus) !=
|
|
0) {
|
|
*current_hz = 0;
|
|
*max_hz = 0;
|
|
return;
|
|
}
|
|
constexpr uint64_t kMhzToHz = static_cast<uint64_t>(1E6);
|
|
*current_hz = std::max_element(info.begin(),
|
|
info.end(),
|
|
[](const PROCESSOR_POWER_INFORMATION& a,
|
|
const PROCESSOR_POWER_INFORMATION& b) {
|
|
return a.CurrentMhz < b.CurrentMhz;
|
|
})->CurrentMhz *
|
|
kMhzToHz;
|
|
*max_hz = std::max_element(info.begin(),
|
|
info.end(),
|
|
[](const PROCESSOR_POWER_INFORMATION& a,
|
|
const PROCESSOR_POWER_INFORMATION& b) {
|
|
return a.MaxMhz < b.MaxMhz;
|
|
})->MaxMhz *
|
|
kMhzToHz;
|
|
}
|
|
|
|
uint32_t SystemSnapshotWin::CPUX86Signature() const {
|
|
INITIALIZATION_STATE_DCHECK_VALID(initialized_);
|
|
|
|
#if defined(ARCH_CPU_X86_FAMILY)
|
|
int cpu_info[4];
|
|
// We will never run on any processors that don't support at least function 1.
|
|
__cpuid(cpu_info, 1);
|
|
return cpu_info[0];
|
|
#else
|
|
NOTREACHED();
|
|
return 0;
|
|
#endif
|
|
}
|
|
|
|
uint64_t SystemSnapshotWin::CPUX86Features() const {
|
|
INITIALIZATION_STATE_DCHECK_VALID(initialized_);
|
|
|
|
#if defined(ARCH_CPU_X86_FAMILY)
|
|
int cpu_info[4];
|
|
// We will never run on any processors that don't support at least function 1.
|
|
__cpuid(cpu_info, 1);
|
|
return (static_cast<uint64_t>(cpu_info[2]) << 32) |
|
|
static_cast<uint64_t>(cpu_info[3]);
|
|
#else
|
|
NOTREACHED();
|
|
return 0;
|
|
#endif
|
|
}
|
|
|
|
uint64_t SystemSnapshotWin::CPUX86ExtendedFeatures() const {
|
|
INITIALIZATION_STATE_DCHECK_VALID(initialized_);
|
|
|
|
#if defined(ARCH_CPU_X86_FAMILY)
|
|
int cpu_info[4];
|
|
// We will never run on any processors that don't support at least extended
|
|
// function 1.
|
|
__cpuid(cpu_info, 0x80000001);
|
|
return (static_cast<uint64_t>(cpu_info[2]) << 32) |
|
|
static_cast<uint64_t>(cpu_info[3]);
|
|
#else
|
|
NOTREACHED();
|
|
return 0;
|
|
#endif
|
|
}
|
|
|
|
uint32_t SystemSnapshotWin::CPUX86Leaf7Features() const {
|
|
INITIALIZATION_STATE_DCHECK_VALID(initialized_);
|
|
|
|
#if defined(ARCH_CPU_X86_FAMILY)
|
|
int cpu_info[4];
|
|
|
|
// Make sure leaf 7 can be called.
|
|
__cpuid(cpu_info, 0);
|
|
if (cpu_info[0] < 7)
|
|
return 0;
|
|
|
|
__cpuidex(cpu_info, 7, 0);
|
|
return cpu_info[1];
|
|
#else
|
|
NOTREACHED();
|
|
return 0;
|
|
#endif
|
|
}
|
|
|
|
bool SystemSnapshotWin::CPUX86SupportsDAZ() const {
|
|
INITIALIZATION_STATE_DCHECK_VALID(initialized_);
|
|
|
|
#if defined(ARCH_CPU_X86_FAMILY)
|
|
// The correct way to check for denormals-as-zeros (DAZ) support is to examine
|
|
// mxcsr mask, which can be done with fxsave. See Intel Software Developer's
|
|
// Manual, Volume 1: Basic Architecture (253665-051), 11.6.3 "Checking for the
|
|
// DAZ Flag in the MXCSR Register". Note that since this function tests for
|
|
// DAZ support in the CPU, it checks the mxcsr mask. Testing mxcsr would
|
|
// indicate whether DAZ is actually enabled, which is a per-thread context
|
|
// concern.
|
|
|
|
// Test for fxsave support.
|
|
uint64_t features = CPUX86Features();
|
|
if (!(features & (UINT64_C(1) << 24))) {
|
|
return false;
|
|
}
|
|
|
|
// Call fxsave.
|
|
__declspec(align(16)) uint32_t extended_registers[128];
|
|
_fxsave(&extended_registers);
|
|
uint32_t mxcsr_mask = extended_registers[7];
|
|
|
|
// Test the DAZ bit.
|
|
return (mxcsr_mask & (1 << 6)) != 0;
|
|
#else
|
|
NOTREACHED();
|
|
return 0;
|
|
#endif
|
|
}
|
|
|
|
SystemSnapshot::OperatingSystem SystemSnapshotWin::GetOperatingSystem() const {
|
|
INITIALIZATION_STATE_DCHECK_VALID(initialized_);
|
|
return kOperatingSystemWindows;
|
|
}
|
|
|
|
bool SystemSnapshotWin::OSServer() const {
|
|
INITIALIZATION_STATE_DCHECK_VALID(initialized_);
|
|
return os_server_;
|
|
}
|
|
|
|
void SystemSnapshotWin::OSVersion(int* major,
|
|
int* minor,
|
|
int* bugfix,
|
|
std::string* build) const {
|
|
INITIALIZATION_STATE_DCHECK_VALID(initialized_);
|
|
*major = os_version_major_;
|
|
*minor = os_version_minor_;
|
|
*bugfix = os_version_bugfix_;
|
|
build->assign(os_version_build_);
|
|
}
|
|
|
|
std::string SystemSnapshotWin::OSVersionFull() const {
|
|
INITIALIZATION_STATE_DCHECK_VALID(initialized_);
|
|
return os_version_full_;
|
|
}
|
|
|
|
std::string SystemSnapshotWin::MachineDescription() const {
|
|
INITIALIZATION_STATE_DCHECK_VALID(initialized_);
|
|
// TODO(scottmg): Not sure if there's anything sensible to put here.
|
|
return std::string();
|
|
}
|
|
|
|
bool SystemSnapshotWin::NXEnabled() const {
|
|
INITIALIZATION_STATE_DCHECK_VALID(initialized_);
|
|
return !!IsProcessorFeaturePresent(PF_NX_ENABLED);
|
|
}
|
|
|
|
void SystemSnapshotWin::TimeZone(DaylightSavingTimeStatus* dst_status,
|
|
int* standard_offset_seconds,
|
|
int* daylight_offset_seconds,
|
|
std::string* standard_name,
|
|
std::string* daylight_name) const {
|
|
// This returns the current time zone status rather than the status at the
|
|
// time of the snapshot. This differs from the Mac implementation.
|
|
TIME_ZONE_INFORMATION time_zone_information;
|
|
*dst_status = static_cast<DaylightSavingTimeStatus>(
|
|
GetTimeZoneInformation(&time_zone_information));
|
|
*standard_offset_seconds =
|
|
(time_zone_information.Bias + time_zone_information.StandardBias) * -60;
|
|
*daylight_offset_seconds =
|
|
(time_zone_information.Bias + time_zone_information.DaylightBias) * -60;
|
|
*standard_name = base::WideToUTF8(time_zone_information.StandardName);
|
|
*daylight_name = base::WideToUTF8(time_zone_information.DaylightName);
|
|
}
|
|
|
|
} // namespace internal
|
|
} // namespace crashpad
|