bf7f7f0f60
These functions can be used to check if an processor feature is supported. IsProcessorFeaturePresentEx is a extended version which is not available in the windows API and allows to query additional features. Currently it works on the following platforms: - i386/amd64 when compiling with gcc - ARM on linux
644 lines
14 KiB
C
644 lines
14 KiB
C
/**
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* WinPR: Windows Portable Runtime
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* System Information
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*
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* Copyright 2012 Marc-Andre Moreau <marcandre.moreau@gmail.com>
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* Copyright 2013 Bernhard Miklautz <bmiklautz@thinstuff.at>
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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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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <winpr/sysinfo.h>
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#include <winpr/platform.h>
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#if defined(__linux__) && defined(__GNUC__)
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#endif
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/**
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* api-ms-win-core-sysinfo-l1-1-1.dll:
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*
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* EnumSystemFirmwareTables
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* GetComputerNameExA
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* GetComputerNameExW
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* GetDynamicTimeZoneInformation
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* GetLocalTime
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* GetLogicalProcessorInformation
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* GetLogicalProcessorInformationEx
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* GetSystemInfo
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* GetNativeSystemInfo
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* GetProductInfo
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* GetSystemDirectoryA
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* GetSystemDirectoryW
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* GetSystemFirmwareTable
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* GetSystemTime
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* GetSystemTimeAdjustment
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* GetSystemTimeAsFileTime
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* GetSystemWindowsDirectoryA
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* GetSystemWindowsDirectoryW
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* GetTickCount
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* GetTickCount64
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* GetTimeZoneInformation
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* GetTimeZoneInformationForYear
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* GetVersion
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* GetVersionExA
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* GetVersionExW
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* GetWindowsDirectoryA
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* GetWindowsDirectoryW
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* GlobalMemoryStatusEx
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* SetComputerNameExW
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* SetDynamicTimeZoneInformation
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* SetLocalTime
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* SetSystemTime
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* SetTimeZoneInformation
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* SystemTimeToFileTime
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* SystemTimeToTzSpecificLocalTime
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* TzSpecificLocalTimeToSystemTime
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* VerSetConditionMask
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*/
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#ifndef _WIN32
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#include <time.h>
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#include <winpr/crt.h>
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#include <winpr/platform.h>
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#if defined(__MACOSX__) || \
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defined(__FreeBSD__) || defined(__NetBSD__) || \
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defined(__OpenBSD__) || defined(__DragonFly__)
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#include <sys/sysctl.h>
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#endif
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DWORD GetProcessorArchitecture()
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{
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DWORD cpuArch = PROCESSOR_ARCHITECTURE_UNKNOWN;
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#if defined(_M_AMD64)
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cpuArch = PROCESSOR_ARCHITECTURE_AMD64;
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#elif defined(_M_IX86)
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cpuArch = PROCESSOR_ARCHITECTURE_INTEL;
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#elif defined(_M_ARM)
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cpuArch = PROCESSOR_ARCHITECTURE_ARM;
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#elif defined(_M_IA64)
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cpuArch = PROCESSOR_ARCHITECTURE_IA64;
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#elif defined(_M_MIPS)
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cpuArch = PROCESSOR_ARCHITECTURE_MIPS;
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#elif defined(_M_PPC)
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cpuArch = PROCESSOR_ARCHITECTURE_PPC;
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#elif defined(_M_ALPHA)
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cpuArch = PROCESSOR_ARCHITECTURE_ALPHA;
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#endif
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return cpuArch;
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}
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DWORD GetNumberOfProcessors()
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{
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DWORD numCPUs = 1;
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/* TODO: iOS */
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#if defined(__linux__) || defined(__sun) || defined(_AIX)
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numCPUs = (DWORD) sysconf(_SC_NPROCESSORS_ONLN);
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#elif defined(__MACOSX__) || \
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defined(__FreeBSD__) || defined(__NetBSD__) || \
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defined(__OpenBSD__) || defined(__DragonFly__)
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{
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int mib[4];
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size_t length = sizeof(numCPUs);
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mib[0] = CTL_HW;
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mib[1] = HW_AVAILCPU;
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sysctl(mib, 2, &numCPUs, &length, NULL, 0);
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if (numCPUs < 1)
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{
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mib[1] = HW_NCPU;
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sysctl(mib, 2, &numCPUs, &length, NULL, 0);
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if (numCPUs < 1)
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numCPUs = 1;
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}
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}
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#elif defined(__hpux)
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numCPUs = (DWORD) mpctl(MPC_GETNUMSPUS, NULL, NULL);
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#elif defined(__sgi)
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numCPUs = (DWORD) sysconf(_SC_NPROC_ONLN);
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#endif
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return numCPUs;
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}
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void GetSystemInfo(LPSYSTEM_INFO lpSystemInfo)
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{
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lpSystemInfo->wProcessorArchitecture = GetProcessorArchitecture();
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lpSystemInfo->wReserved = 0;
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lpSystemInfo->dwPageSize = 0;
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lpSystemInfo->lpMinimumApplicationAddress = NULL;
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lpSystemInfo->lpMaximumApplicationAddress = NULL;
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lpSystemInfo->dwActiveProcessorMask = 0;
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lpSystemInfo->dwNumberOfProcessors = GetNumberOfProcessors();
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lpSystemInfo->dwProcessorType = 0;
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lpSystemInfo->dwAllocationGranularity = 0;
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lpSystemInfo->wProcessorLevel = 0;
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lpSystemInfo->wProcessorRevision = 0;
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}
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void GetNativeSystemInfo(LPSYSTEM_INFO lpSystemInfo)
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{
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GetSystemInfo(lpSystemInfo);
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}
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BOOL GetComputerNameA(LPSTR lpBuffer, LPDWORD lpnSize)
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{
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char* dot;
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int length;
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char hostname[256];
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gethostname(hostname, sizeof(hostname));
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length = strlen(hostname);
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dot = strchr(hostname, '.');
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if (dot)
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length = dot - hostname;
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if (*lpnSize <= length)
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{
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*lpnSize = length + 1;
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return 0;
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}
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if (!lpBuffer)
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return 0;
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CopyMemory(lpBuffer, hostname, length);
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lpBuffer[length] = '\0';
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return TRUE;
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}
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BOOL GetComputerNameExA(COMPUTER_NAME_FORMAT NameType, LPSTR lpBuffer, LPDWORD lpnSize)
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{
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int length;
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char hostname[256];
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if ((NameType == ComputerNameNetBIOS) || (NameType == ComputerNamePhysicalNetBIOS))
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return GetComputerNameA(lpBuffer, lpnSize);
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gethostname(hostname, sizeof(hostname));
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length = strlen(hostname);
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switch (NameType)
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{
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case ComputerNameDnsHostname:
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case ComputerNameDnsDomain:
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case ComputerNameDnsFullyQualified:
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case ComputerNamePhysicalDnsHostname:
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case ComputerNamePhysicalDnsDomain:
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case ComputerNamePhysicalDnsFullyQualified:
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if (*lpnSize <= length)
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{
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*lpnSize = length + 1;
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return FALSE;
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}
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if (!lpBuffer)
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return FALSE;
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CopyMemory(lpBuffer, hostname, length);
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lpBuffer[length] = '\0';
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break;
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default:
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return FALSE;
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break;
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}
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return TRUE;
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}
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BOOL GetComputerNameExW(COMPUTER_NAME_FORMAT NameType, LPWSTR lpBuffer, LPDWORD nSize)
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{
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printf("GetComputerNameExW unimplemented\n");
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return 0;
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}
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/* OSVERSIONINFOEX Structure:
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* http://msdn.microsoft.com/en-us/library/windows/desktop/ms724833
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*/
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BOOL GetVersionExA(LPOSVERSIONINFOA lpVersionInformation)
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{
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/* Windows 7 SP1 Version Info */
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if ((lpVersionInformation->dwOSVersionInfoSize == sizeof(OSVERSIONINFOA)) ||
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(lpVersionInformation->dwOSVersionInfoSize == sizeof(OSVERSIONINFOEXA)))
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{
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lpVersionInformation->dwMajorVersion = 6;
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lpVersionInformation->dwMinorVersion = 1;
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lpVersionInformation->dwBuildNumber = 7601;
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lpVersionInformation->dwPlatformId = VER_PLATFORM_WIN32_NT;
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ZeroMemory(lpVersionInformation->szCSDVersion, sizeof(lpVersionInformation->szCSDVersion));
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if (lpVersionInformation->dwOSVersionInfoSize == sizeof(OSVERSIONINFOEXA))
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{
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LPOSVERSIONINFOEXA lpVersionInformationEx = (LPOSVERSIONINFOEXA) lpVersionInformation;
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lpVersionInformationEx->wServicePackMajor = 1;
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lpVersionInformationEx->wServicePackMinor = 0;
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lpVersionInformationEx->wSuiteMask = 0;
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lpVersionInformationEx->wProductType = VER_NT_WORKSTATION;
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lpVersionInformationEx->wReserved = 0;
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}
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return 1;
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}
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return 0;
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}
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BOOL GetVersionExW(LPOSVERSIONINFOW lpVersionInformation)
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{
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printf("GetVersionExW unimplemented\n");
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return 1;
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}
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VOID GetSystemTimeAsFileTime(LPFILETIME lpSystemTimeAsFileTime)
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{
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ULARGE_INTEGER time64;
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time64.u.HighPart = 0;
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/* time represented in tenths of microseconds since midnight of January 1, 1601 */
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time64.QuadPart = time(NULL) + 11644473600LL; /* Seconds since January 1, 1601 */
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time64.QuadPart *= 10000000; /* Convert timestamp to tenths of a microsecond */
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lpSystemTimeAsFileTime->dwLowDateTime = time64.LowPart;
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lpSystemTimeAsFileTime->dwHighDateTime = time64.HighPart;
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}
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#ifndef CLOCK_MONOTONIC_RAW
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#define CLOCK_MONOTONIC_RAW 4
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#endif
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DWORD GetTickCount(void)
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{
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DWORD ticks = 0;
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#ifdef __linux__
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struct timespec ts;
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if (!clock_gettime(CLOCK_MONOTONIC_RAW, &ts))
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ticks = (ts.tv_sec * 1000) + (ts.tv_nsec / 1000000);
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#else
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/**
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* FIXME: this is relative to the Epoch time, and we
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* need to return a value relative to the system uptime.
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*/
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struct timeval tv;
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if (!gettimeofday(&tv, NULL))
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ticks = (tv.tv_sec * 1000) + (tv.tv_usec / 1000);
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#endif
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return ticks;
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}
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/* If x86 and gcc*/
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#ifdef _M_IX86_AMD64
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#ifdef __GNUC__
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#ifdef __AVX__
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#define xgetbv(_func_, _lo_, _hi_) \
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__asm__ __volatile__ ("xgetbv" : "=a" (_lo_), "=d" (_hi_) : "c" (_func_))
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#endif
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#define D_BIT_MMX (1<<23)
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#define D_BIT_SSE (1<<25)
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#define D_BIT_SSE2 (1<<26)
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#define D_BIT_3DN (1<<30)
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#define C_BIT_SSE3 (1<<0)
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#define C_BIT_3DNP (1<<8)
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#define C_BIT_SSSE3 (1<<9)
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#define C_BIT_SSE41 (1<<19)
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#define C_BIT_SSE42 (1<<20)
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#define C_BIT_XGETBV (1<<27)
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#define C_BIT_AVX (1<<28)
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#define C_BITS_AVX (C_BIT_XGETBV|C_BIT_AVX)
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#define E_BIT_XMM (1<<1)
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#define E_BIT_YMM (1<<2)
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#define E_BITS_AVX (E_BIT_XMM|E_BIT_YMM)
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#define C_BIT_FMA (1<<11)
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#define C_BIT_AVX_AES (1<<24)
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static void cpuid(
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unsigned info,
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unsigned *eax,
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unsigned *ebx,
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unsigned *ecx,
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unsigned *edx)
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{
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*eax = *ebx = *ecx = *edx = 0;
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__asm volatile
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(
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/* The EBX (or RBX register on x86_64) is used for the PIC base address
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* and must not be corrupted by our inline assembly.
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*/
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#ifdef _M_IX86
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"mov %%ebx, %%esi;"
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"cpuid;"
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"xchg %%ebx, %%esi;"
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#else
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"mov %%rbx, %%rsi;"
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"cpuid;"
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"xchg %%rbx, %%rsi;"
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#endif
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: "=a" (*eax), "=S" (*ebx), "=c" (*ecx), "=d" (*edx)
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: "0" (info)
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);
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}
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#endif // __GNUC__
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#elif defined(_M_ARM)
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#if defined(__linux__)
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// HWCAP flags from linux kernel - uapi/asm/hwcap.h
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#define HWCAP_SWP (1 << 0)
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#define HWCAP_HALF (1 << 1)
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#define HWCAP_THUMB (1 << 2)
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#define HWCAP_26BIT (1 << 3) /* Play it safe */
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#define HWCAP_FAST_MULT (1 << 4)
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#define HWCAP_FPA (1 << 5)
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#define HWCAP_VFP (1 << 6)
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#define HWCAP_EDSP (1 << 7)
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#define HWCAP_JAVA (1 << 8)
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#define HWCAP_IWMMXT (1 << 9)
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#define HWCAP_CRUNCH (1 << 10)
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#define HWCAP_THUMBEE (1 << 11)
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#define HWCAP_NEON (1 << 12)
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#define HWCAP_VFPv3 (1 << 13)
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#define HWCAP_VFPv3D16 (1 << 14) /* also set for VFPv4-D16 */
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#define HWCAP_TLS (1 << 15)
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#define HWCAP_VFPv4 (1 << 16)
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#define HWCAP_IDIVA (1 << 17)
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#define HWCAP_IDIVT (1 << 18)
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#define HWCAP_VFPD32 (1 << 19) /* set if VFP has 32 regs (not 16) */
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#define HWCAP_IDIV (HWCAP_IDIVA | HWCAP_IDIVT)
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// From linux kernel uapi/linux/auxvec.h
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#define AT_HWCAP 16
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static unsigned GetARMCPUCaps(void){
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unsigned caps = 0;
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int fd = open ("/proc/self/auxv", O_RDONLY);
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if (fd == -1)
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return 0;
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static struct
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{
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unsigned a_type; /* Entry type */
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unsigned a_val; /* Integer value */
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} auxvec;
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while (1){
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int num;
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num = read(fd, (char *)&auxvec, sizeof(auxvec));
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if (num < 1 || (auxvec.a_type == 0 && auxvec.a_val == 0))
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break;
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if (auxvec.a_type == AT_HWCAP)
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{
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caps = auxvec.a_val;
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}
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}
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close(fd);
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return caps;
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}
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#endif // defined(__linux__)
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#endif // _M_IX86_AMD64
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BOOL IsProcessorFeaturePresent(DWORD ProcessorFeature)
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{
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BOOL ret = FALSE;
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#ifdef _M_ARM
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#ifdef __linux__
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unsigned caps;
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caps = GetARMCPUCaps();
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switch (ProcessorFeature)
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{
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case PF_ARM_NEON_INSTRUCTIONS_AVAILABLE:
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case PF_ARM_NEON:
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if (caps & HWCAP_NEON)
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ret = TRUE;
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break;
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case PF_ARM_THUMB:
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if (caps & HWCAP_THUMB)
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ret = TRUE;
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case PF_ARM_VFP_32_REGISTERS_AVAILABLE:
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if (caps & HWCAP_VFPD32)
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ret = TRUE;
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case PF_ARM_DIVIDE_INSTRUCTION_AVAILABLE:
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if ((caps & HWCAP_IDIVA) || (caps & HWCAP_IDIVT))
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ret = TRUE;
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case PF_ARM_VFP3:
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if (caps & HWCAP_VFPv3)
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ret = TRUE;
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break;
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case PF_ARM_JAZELLE:
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if (caps & HWCAP_JAVA)
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ret = TRUE;
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break;
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case PF_ARM_DSP:
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if (caps & HWCAP_EDSP)
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ret = TRUE;
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break;
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case PF_ARM_MPU:
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if (caps & HWCAP_EDSP)
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ret = TRUE;
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break;
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case PF_ARM_THUMB2:
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if ((caps & HWCAP_IDIVT) || (caps & HWCAP_VFPv4))
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ret = TRUE;
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break;
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case PF_ARM_T2EE:
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if (caps & HWCAP_THUMBEE)
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ret = TRUE;
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break;
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case PF_ARM_INTEL_WMMX:
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if (caps & HWCAP_IWMMXT)
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ret = TRUE;
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break;
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default:
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break;
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}
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#endif
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#elif defined(_M_IX86_AMD64)
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#ifdef __GNUC__
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unsigned a, b, c, d;
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cpuid(1, &a, &b, &c, &d);
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switch (ProcessorFeature)
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{
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case PF_MMX_INSTRUCTIONS_AVAILABLE:
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if (d & D_BIT_MMX)
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ret = TRUE;
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break;
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case PF_XMMI_INSTRUCTIONS_AVAILABLE:
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if (d & D_BIT_SSE)
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ret = TRUE;
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break;
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case PF_XMMI64_INSTRUCTIONS_AVAILABLE:
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if (d & D_BIT_SSE2)
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ret = TRUE;
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break;
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case PF_3DNOW_INSTRUCTIONS_AVAILABLE:
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if (d & D_BIT_3DN)
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ret = TRUE;
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break;
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case PF_SSE3_INSTRUCTIONS_AVAILABLE:
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if (c & C_BIT_SSE3)
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ret = TRUE;
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break;
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default:
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break;
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}
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#endif // __GNUC__
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|
#endif
|
|
return ret;
|
|
}
|
|
#endif _WIN32
|
|
|
|
BOOL IsProcessorFeaturePresentEx(DWORD ProcessorFeature)
|
|
{
|
|
BOOL ret = FALSE;
|
|
#ifdef _M_ARM
|
|
#ifdef __linux__
|
|
unsigned caps;
|
|
caps = GetARMCPUCaps();
|
|
|
|
switch (ProcessorFeature)
|
|
{
|
|
case PF_EX_ARM_VFP1:
|
|
if (caps & HWCAP_VFP)
|
|
ret = TRUE;
|
|
break;
|
|
case PF_EX_ARM_VFP3D16:
|
|
if (caps & HWCAP_VFPv3D16)
|
|
ret = TRUE;
|
|
break;
|
|
case PF_EX_ARM_VFP4:
|
|
if (caps & HWCAP_VFPv4)
|
|
ret = TRUE;
|
|
break;
|
|
case PF_EX_ARM_IDIVA:
|
|
if (caps & HWCAP_IDIVA)
|
|
ret = TRUE;
|
|
break;
|
|
case PF_EX_ARM_IDIVT:
|
|
if (caps & HWCAP_IDIVT)
|
|
ret = TRUE;
|
|
break;
|
|
}
|
|
#endif // __linux__
|
|
#elif defined(_M_IX86_AMD64)
|
|
unsigned a, b, c, d;
|
|
cpuid(1, &a, &b, &c, &d);
|
|
|
|
switch (ProcessorFeature)
|
|
{
|
|
case PF_EX_3DNOW_PREFETCH:
|
|
if (c & C_BIT_3DNP)
|
|
ret = TRUE;
|
|
break;
|
|
case PF_EX_SSSE3:
|
|
if (c & C_BIT_SSSE3)
|
|
ret = TRUE;
|
|
break;
|
|
case PF_EX_SSE41:
|
|
if (c & C_BIT_SSE41)
|
|
ret = TRUE;
|
|
break;
|
|
case PF_EX_SSE42:
|
|
if (c & C_BIT_SSE42)
|
|
ret = TRUE;
|
|
break;
|
|
#ifdef __AVX__
|
|
case PF_EX_AVX:
|
|
case PF_EX_FMA:
|
|
case PF_EX_AVX_AES:
|
|
{
|
|
if ((c & C_BITS_AVX) != C_BITS_AVX)
|
|
ret = FALSE;
|
|
|
|
int e, f;
|
|
xgetbv(0, e, f);
|
|
|
|
if ((e & E_BITS_AVX) == E_BITS_AVX)
|
|
{
|
|
switch (ProcessorFeature)
|
|
{
|
|
case: PF_EX_AVX:
|
|
ret = TRUE;
|
|
break;
|
|
case: PF_EX_FMA:
|
|
if (c & C_BIT_FMA)
|
|
ret = TRUE;
|
|
break;
|
|
case: PF_EX_AVX_AES:
|
|
if (c & C_BIT_AVX_AES)
|
|
ret = TRUE;
|
|
break;
|
|
{
|
|
ret = TRUE;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
#endif //__AVX__
|
|
default:
|
|
break;
|
|
}
|
|
#endif
|
|
return ret;
|
|
}
|