/*
* Copyright (c) 2008-2023 Jonathan Schleifer <js@nil.im>
*
* All rights reserved.
*
* This file is part of ObjFW. It may be distributed under the terms of the
* Q Public License 1.0, which can be found in the file LICENSE.QPL included in
* the packaging of this file.
*
* Alternatively, it may be distributed under the terms of the GNU General
* Public License, either version 2 or 3, which can be found in the file
* LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
* file.
*/
#define __NO_EXT_QNX
#include "config.h"
#include <limits.h> /* include any libc header to get the libc defines */
#include "unistd_wrapper.h"
#include "platform.h"
#ifdef HAVE_SYS_UTSNAME_H
# include <sys/utsname.h>
#endif
#if defined(OF_MACOS) || defined(OF_IOS) || defined(OF_NETBSD)
# include <sys/sysctl.h>
#endif
#ifdef OF_AMIGAOS
# define Class IntuitionClass
# include <exec/execbase.h>
# include <proto/exec.h>
# undef Class
#endif
#if defined(OF_AMIGAOS4)
# include <exec/exectags.h>
#elif defined(OF_MORPHOS)
# include <exec/system.h>
#endif
#ifdef OF_NINTENDO_SWITCH
# define id nx_id
# import <switch.h>
# undef nx_id
#endif
#ifdef OF_DJGPP
# include <dos.h>
#endif
#import "OFSystemInfo.h"
#import "OFApplication.h"
#import "OFArray.h"
#import "OFData.h"
#import "OFDictionary.h"
#ifdef OF_HAVE_FILES
# import "OFFile.h"
# import "OFFileManager.h"
#endif
#import "OFIRI.h"
#import "OFLocale.h"
#import "OFNumber.h"
#import "OFOnce.h"
#import "OFString.h"
#import "OFInvalidFormatException.h"
#import "OFOpenItemFailedException.h"
#if defined(OF_MACOS) || defined(OF_IOS)
# ifdef HAVE_SYSDIR_H
# include <sysdir.h>
# endif
#endif
#ifdef OF_HAIKU
# include <FindDirectory.h>
#endif
#ifdef OF_QNX
# include <sys/syspage.h>
#endif
#if !defined(PATH_MAX) && defined(MAX_PATH)
# define PATH_MAX MAX_PATH
#endif
#if defined(OF_MACOS) || defined(OF_IOS)
/*
* These have been dropped from newer iOS SDKs, however, their replacements are
* not available on iOS < 10. This means it's impossible to search for the
* paths when using a new SDK while targeting iOS 9 or earlier. To work around
* this, we define those manually, only to be used when the replacements are
* not available at runtime.
*/
typedef enum {
NSLibraryDirectory = 5,
NSApplicationSupportDirectory = 14
} NSSearchPathDirectory;
typedef enum {
NSUserDomainMask = 1
} NSSearchPathDomainMask;
typedef unsigned int NSSearchPathEnumerationState;
extern NSSearchPathEnumerationState NSStartSearchPathEnumeration(
NSSearchPathDirectory, NSSearchPathDomainMask);
extern NSSearchPathEnumerationState NSGetNextSearchPathEnumeration(
NSSearchPathEnumerationState, char *);
#endif
#if defined(OF_AMD64) || defined(OF_X86)
struct X86Regs {
uint32_t eax, ebx, ecx, edx;
};
#endif
static size_t pageSize = 4096;
static size_t numberOfCPUs = 1;
static OFString *operatingSystemName = nil;
static OFString *operatingSystemVersion = nil;
static void
initOperatingSystemName(void)
{
#if defined(OF_IOS)
operatingSystemName = @"iOS";
#elif defined(OF_MACOS)
operatingSystemName = @"macOS";
#elif defined(OF_WINDOWS)
operatingSystemName = @"Windows";
#elif defined(OF_ANDROID)
operatingSystemName = @"Android";
#elif defined(OF_AMIGAOS_M68K)
operatingSystemName = @"AmigaOS";
#elif defined(OF_MORPHOS)
operatingSystemName = @"MorphOS";
#elif defined(OF_AMIGAOS4)
operatingSystemName = @"AmigaOS 4";
#elif defined(OF_WII)
operatingSystemName = @"Nintendo Wii";
#elif defined(OF_WII_U)
operatingSystemName = @"Nintendo Wii U";
#elif defined(NINTENDO_3DS)
operatingSystemName = @"Nintendo 3DS";
#elif defined(OF_NINTENDO_DS)
operatingSystemName = @"Nintendo DS";
#elif defined(OF_NINTENDO_SWITCH)
operatingSystemName = @"Nintendo Switch";
#elif defined(OF_PSP)
operatingSystemName = @"PlayStation Portable";
#elif defined(OF_DJGPP)
operatingSystemName = [[OFString alloc]
initWithCString: _os_flavor
encoding: OFStringEncodingASCII];
#elif defined(HAVE_SYS_UTSNAME_H) && defined(HAVE_UNAME)
struct utsname name;
if (uname(&name) == -1)
return;
operatingSystemName = [[OFString alloc]
initWithCString: name.sysname
encoding: [OFLocale encoding]];
#endif
}
static void
initOperatingSystemVersion(void)
{
#if defined(OF_IOS) || defined(OF_MACOS)
# ifdef OF_HAVE_FILES
void *pool = objc_autoreleasePoolPush();
@try {
OFDictionary *propertyList = [[OFString
stringWithContentsOfFile: @"/System/Library/CoreServices/"
@"SystemVersion.plist"]
objectByParsingPropertyList];
operatingSystemVersion = [[propertyList
objectForKey: @"ProductVersion"] copy];
} @finally {
objc_autoreleasePoolPop(pool);
}
# endif
#elif defined(OF_WINDOWS)
# ifdef OF_HAVE_FILES
void *pool = objc_autoreleasePoolPush();
@try {
OFStringEncoding encoding = [OFLocale encoding];
char systemDir[PATH_MAX];
UINT systemDirLen;
OFString *systemDirString;
const char *path;
void *buffer;
DWORD bufferLen;
systemDirLen = GetSystemDirectoryA(systemDir, PATH_MAX);
if (systemDirLen == 0)
return;
systemDirString = [OFString stringWithCString: systemDir
encoding: encoding
length: systemDirLen];
path = [[systemDirString stringByAppendingPathComponent:
@"kernel32.dll"] cStringWithEncoding: encoding];
if ((bufferLen = GetFileVersionInfoSizeA(path, NULL)) == 0)
return;
if ((buffer = malloc(bufferLen)) == 0)
return;
@try {
void *data;
UINT dataLen;
VS_FIXEDFILEINFO *info;
if (!GetFileVersionInfoA(path, 0, bufferLen, buffer))
return;
if (!VerQueryValueA(buffer, "\\", &data, &dataLen) ||
dataLen < sizeof(info))
return;
info = (VS_FIXEDFILEINFO *)data;
operatingSystemVersion = [[OFString alloc]
initWithFormat: @"%u.%u.%u",
HIWORD(info->dwProductVersionMS),
LOWORD(info->dwProductVersionMS),
HIWORD(info->dwProductVersionLS)];
} @finally {
free(buffer);
}
} @finally {
objc_autoreleasePoolPop(pool);
}
# endif
#elif defined(OF_ANDROID)
/* TODO */
#elif defined(OF_AMIGAOS)
operatingSystemVersion = [[OFString alloc]
initWithFormat: @"Kickstart %u.%u",
SysBase->LibNode.lib_Version, SysBase->SoftVer];
#elif defined(OF_DJGPP)
operatingSystemVersion = [[OFString alloc]
initWithFormat: @"%u.%u", _osmajor, _osminor];
#elif defined(OF_WII) || defined(NINTENDO_3DS) || defined(OF_NINTENDO_DS) || \
defined(OF_PSP)
/* Intentionally nothing */
#elif defined(HAVE_SYS_UTSNAME_H) && defined(HAVE_UNAME)
struct utsname name;
if (uname(&name) == -1)
return;
operatingSystemVersion = [[OFString alloc]
initWithCString: name.release
encoding: [OFLocale encoding]];
#endif
}
#ifdef OF_NINTENDO_SWITCH
static OFIRI *tmpFSIRI = nil;
static void
mountTmpFS(void)
{
if (R_SUCCEEDED(fsdevMountTemporaryStorage("tmpfs")))
tmpFSIRI = [[OFIRI alloc] initFileIRIWithPath: @"tmpfs:/"
isDirectory: true];
}
#endif
#if defined(OF_AMD64) || defined(OF_X86)
static OF_INLINE struct X86Regs OF_CONST_FUNC
x86CPUID(uint32_t eax, uint32_t ecx)
{
struct X86Regs regs;
# if defined(OF_AMD64) && defined(__GNUC__)
__asm__ (
"cpuid"
: "=a"(regs.eax), "=b"(regs.ebx), "=c"(regs.ecx), "=d"(regs.edx)
: "a"(eax), "c"(ecx)
);
# elif defined(OF_X86) && defined(__GNUC__)
/*
* This workaround is required by older GCC versions when using -fPIC,
* as ebx is a special register in PIC code. Yes, GCC is indeed not
* able to just push a register onto the stack before the __asm__ block
* and to pop it afterwards.
*/
__asm__ (
"xchgl %%ebx, %%edi\n\t"
"cpuid\n\t"
"xchgl %%edi, %%ebx"
: "=a"(regs.eax), "=D"(regs.ebx), "=c"(regs.ecx), "=d"(regs.edx)
: "a"(eax), "c"(ecx)
);
# else
memset(®s, 0, sizeof(regs));
# endif
return regs;
}
#endif
@implementation OFSystemInfo
+ (void)initialize
{
long tmp;
if (self != [OFSystemInfo class])
return;
#if defined(OF_WINDOWS)
SYSTEM_INFO si;
GetSystemInfo(&si);
pageSize = si.dwPageSize;
numberOfCPUs = si.dwNumberOfProcessors;
#elif defined(OF_QNX)
if ((tmp = sysconf(_SC_PAGESIZE)) > 0)
pageSize = tmp;
numberOfCPUs = _syspage_ptr->num_cpu;
#else
# if defined(HAVE_SYSCONF) && defined(_SC_PAGESIZE)
if ((tmp = sysconf(_SC_PAGESIZE)) > 0)
pageSize = tmp;
# endif
# if defined(HAVE_SYSCONF) && defined(_SC_NPROCESSORS_CONF)
if ((tmp = sysconf(_SC_NPROCESSORS_CONF)) > 0)
numberOfCPUs = tmp;
# endif
#endif
(void)tmp;
}
+ (instancetype)alloc
{
OF_UNRECOGNIZED_SELECTOR
}
+ (size_t)pageSize
{
return pageSize;
}
+ (size_t)numberOfCPUs
{
return numberOfCPUs;
}
+ (OFString *)ObjFWVersion
{
return @PACKAGE_VERSION;
}
+ (unsigned short)ObjFWVersionMajor
{
return OBJFW_VERSION_MAJOR;
}
+ (unsigned short)ObjFWVersionMinor
{
return OBJFW_VERSION_MINOR;
}
+ (OFString *)operatingSystemName
{
static OFOnceControl onceControl = OFOnceControlInitValue;
OFOnce(&onceControl, initOperatingSystemName);
return operatingSystemName;
}
+ (OFString *)operatingSystemVersion
{
static OFOnceControl onceControl = OFOnceControlInitValue;
OFOnce(&onceControl, initOperatingSystemVersion);
return operatingSystemVersion;
}
+ (OFIRI *)userDataIRI
{
#ifdef OF_HAVE_FILES
# if defined(OF_MACOS) || defined(OF_IOS)
char pathC[PATH_MAX];
OFMutableString *path;
# ifdef HAVE_SYSDIR_START_SEARCH_PATH_ENUMERATION
if (@available(macOS 10.12, iOS 10, *)) {
sysdir_search_path_enumeration_state state;
state = sysdir_start_search_path_enumeration(
SYSDIR_DIRECTORY_APPLICATION_SUPPORT,
SYSDIR_DOMAIN_MASK_USER);
if (sysdir_get_next_search_path_enumeration(state, pathC) == 0)
return nil;
} else {
# endif
NSSearchPathEnumerationState state;
state = NSStartSearchPathEnumeration(
NSApplicationSupportDirectory, NSUserDomainMask);
if (NSGetNextSearchPathEnumeration(state, pathC) == 0)
return nil;
# ifdef HAVE_SYSDIR_START_SEARCH_PATH_ENUMERATION
}
# endif
path = [OFMutableString stringWithUTF8String: pathC];
if ([path hasPrefix: @"~"]) {
OFDictionary *env = [OFApplication environment];
OFString *home;
if ((home = [env objectForKey: @"HOME"]) == nil)
return nil;
[path deleteCharactersInRange: OFMakeRange(0, 1)];
[path insertString: home atIndex: 0];
}
[path makeImmutable];
return [OFIRI fileIRIWithPath: path isDirectory: true];
# elif defined(OF_WINDOWS)
OFDictionary *env = [OFApplication environment];
OFString *appData;
if ((appData = [env objectForKey: @"APPDATA"]) == nil)
return nil;
return [OFIRI fileIRIWithPath: appData isDirectory: true];
# elif defined(OF_HAIKU)
char pathC[PATH_MAX];
if (find_directory(B_USER_SETTINGS_DIRECTORY, 0, false,
pathC, PATH_MAX) != B_OK)
return nil;
return [OFIRI fileIRIWithPath: [OFString stringWithUTF8String: pathC]
isDirectory: true];
# elif defined(OF_AMIGAOS)
return [OFIRI fileIRIWithPath: @"PROGDIR:" isDirectory: true];
# elif defined(OF_WII) || defined(OF_NINTENDO_3DS)
return [[OFFileManager defaultManager] currentDirectoryIRI];
# else
OFDictionary *env = [OFApplication environment];
OFString *var;
OFIRI *IRI;
void *pool;
if ((var = [env objectForKey: @"XDG_DATA_HOME"]) != nil &&
var.length > 0)
return [OFIRI fileIRIWithPath: var isDirectory: true];
if ((var = [env objectForKey: @"HOME"]) == nil)
return nil;
pool = objc_autoreleasePoolPush();
var = [OFString pathWithComponents: [OFArray arrayWithObjects:
var, @".local", @"share", nil]];
IRI = [[OFIRI alloc] initFileIRIWithPath: var isDirectory: true];
objc_autoreleasePoolPop(pool);
return [IRI autorelease];
# endif
#else
return nil;
#endif
}
+ (OFIRI *)userConfigIRI
{
#ifdef OF_HAVE_FILES
# if defined(OF_MACOS) || defined(OF_IOS)
char pathC[PATH_MAX];
OFMutableString *path;
# ifdef HAVE_SYSDIR_START_SEARCH_PATH_ENUMERATION
if (@available(macOS 10.12, iOS 10, *)) {
sysdir_search_path_enumeration_state state;
state = sysdir_start_search_path_enumeration(
SYSDIR_DIRECTORY_LIBRARY, SYSDIR_DOMAIN_MASK_USER);
if (sysdir_get_next_search_path_enumeration(state, pathC) == 0)
return nil;
} else {
# endif
NSSearchPathEnumerationState state;
state = NSStartSearchPathEnumeration(NSLibraryDirectory,
NSUserDomainMask);
if (NSGetNextSearchPathEnumeration(state, pathC) == 0)
return nil;
# ifdef HAVE_SYSDIR_START_SEARCH_PATH_ENUMERATION
}
# endif
path = [OFMutableString stringWithUTF8String: pathC];
if ([path hasPrefix: @"~"]) {
OFDictionary *env = [OFApplication environment];
OFString *home;
if ((home = [env objectForKey: @"HOME"]) == nil)
return nil;
[path deleteCharactersInRange: OFMakeRange(0, 1)];
[path insertString: home atIndex: 0];
}
[path appendString: @"/Preferences"];
[path makeImmutable];
return [OFIRI fileIRIWithPath: path isDirectory: true];
# elif defined(OF_WINDOWS)
OFDictionary *env = [OFApplication environment];
OFString *appData;
if ((appData = [env objectForKey: @"APPDATA"]) == nil)
return nil;
return [OFIRI fileIRIWithPath: appData isDirectory: true];
# elif defined(OF_HAIKU)
char pathC[PATH_MAX];
if (find_directory(B_USER_SETTINGS_DIRECTORY, 0, false,
pathC, PATH_MAX) != B_OK)
return nil;
return [OFIRI fileIRIWithPath: [OFString stringWithUTF8String: pathC]
isDirectory: true];
# elif defined(OF_AMIGAOS)
return [OFIRI fileIRIWithPath: @"PROGDIR:" isDirectory: true];
# elif defined(OF_WII) || defined(OF_NINTENDO_3DS)
return [[OFFileManager defaultManager] currentDirectoryIRI];
# else
OFDictionary *env = [OFApplication environment];
OFString *var;
if ((var = [env objectForKey: @"XDG_CONFIG_HOME"]) != nil &&
var.length > 0)
return [OFIRI fileIRIWithPath: var isDirectory: true];
if ((var = [env objectForKey: @"HOME"]) == nil)
return nil;
var = [var stringByAppendingPathComponent: @".config"];
return [OFIRI fileIRIWithPath: var isDirectory: true];
# endif
#else
return nil;
#endif
}
+ (OFIRI *)temporaryDirectoryIRI
{
#ifdef OF_HAVE_FILES
# if defined(OF_MACOS) || defined(OF_IOS)
char buffer[PATH_MAX];
size_t length;
OFString *path;
if ((length = confstr(_CS_DARWIN_USER_TEMP_DIR, buffer, PATH_MAX)) == 0)
return [OFIRI fileIRIWithPath: @"/tmp" isDirectory: true];
path = [OFString stringWithCString: buffer
encoding: [OFLocale encoding]
length: length - 1];
return [OFIRI fileIRIWithPath: path isDirectory: true];
# elif defined(OF_WINDOWS)
OFString *path;
if ([self isWindowsNT]) {
wchar_t buffer[PATH_MAX];
if (!GetTempPathW(PATH_MAX, buffer))
return nil;
path = [OFString stringWithUTF16String: buffer];
} else {
char buffer[PATH_MAX];
if (!GetTempPathA(PATH_MAX, buffer))
return nil;
path = [OFString stringWithCString: buffer
encoding: [OFLocale encoding]];
}
return [OFIRI fileIRIWithPath: path isDirectory: true];
# elif defined(OF_HAIKU)
char pathC[PATH_MAX];
if (find_directory(B_SYSTEM_TEMP_DIRECTORY, 0, false,
pathC, PATH_MAX) != B_OK)
return nil;
return [OFIRI fileIRIWithPath: [OFString stringWithUTF8String: pathC]
isDirectory: true];
# elif defined(OF_AMIGAOS)
return [OFIRI fileIRIWithPath: @"T:" isDirectory: true];
# elif defined(OF_MSDOS)
OFString *path = [[OFApplication environment] objectForKey: @"TEMP"];
if (path == nil)
return nil;
return [OFIRI fileIRIWithPath: path isDirectory: true];
# elif defined(OF_MINT)
return [OFIRI fileIRIWithPath: @"u:\\tmp" isDirectory: true];
# elif defined(OF_WII) || defined(OF_NINTENDO_3DS)
return [[OFFileManager defaultManager] currentDirectoryIRI];
# elif defined(OF_NINTENDO_SWITCH)
static OFOnceControl onceControl = OFOnceControlInitValue;
OFOnce(&onceControl, mountTmpFS);
return tmpFSIRI;
# else
OFString *path;
path = [[OFApplication environment] objectForKey: @"XDG_RUNTIME_DIR"];
if (path != nil)
return [OFIRI fileIRIWithPath: path isDirectory: true];
path = [[OFApplication environment] objectForKey: @"TMPDIR"];
if (path != nil)
return [OFIRI fileIRIWithPath: path isDirectory: true];
return [OFIRI fileIRIWithPath: @"/tmp" isDirectory: true];
# endif
#else
return nil;
#endif
}
+ (OFString *)CPUVendor
{
#if (defined(OF_AMD64) || defined(OF_X86)) && defined(__GNUC__)
struct X86Regs regs = x86CPUID(0, 0);
uint32_t buffer[3];
if (regs.eax == 0)
return nil;
buffer[0] = regs.ebx;
buffer[1] = regs.edx;
buffer[2] = regs.ecx;
return [OFString stringWithCString: (char *)buffer
encoding: OFStringEncodingASCII
length: 12];
#elif defined(OF_M68K)
return @"Motorola";
#else
return nil;
#endif
}
+ (OFString *)CPUModel
{
#if (defined(OF_AMD64) || defined(OF_X86)) && defined(__GNUC__)
struct X86Regs regs = x86CPUID(0x80000000, 0);
uint32_t buffer[12];
size_t i;
if (regs.eax < 0x80000004)
return nil;
i = 0;
for (uint32_t eax = 0x80000002; eax <= 0x80000004; eax++) {
regs = x86CPUID(eax, 0);
buffer[i++] = regs.eax;
buffer[i++] = regs.ebx;
buffer[i++] = regs.ecx;
buffer[i++] = regs.edx;
}
return [OFString stringWithCString: (char *)buffer
encoding: OFStringEncodingASCII];
#elif defined(OF_MACOS) || defined(OF_IOS)
char buffer[128];
size_t length = sizeof(buffer);
if (sysctlbyname("machdep.cpu.brand_string", &buffer, &length,
NULL, 0) != 0)
return nil;
return [OFString stringWithCString: buffer
encoding: [OFLocale encoding]
length: length];
#elif defined(OF_AMIGAOS4)
CONST_STRPTR model, version;
GetCPUInfoTags(GCIT_ModelString, &model,
GCIT_VersionString, &version, TAG_END);
if (version != NULL)
return [OFString stringWithFormat: @"%s V%s", model, version];
else
return [OFString stringWithCString: model
encoding: OFStringEncodingASCII];
#elif defined(OF_AMIGAOS_M68K)
if (SysBase->AttnFlags & AFF_68060)
return @"68060";
if (SysBase->AttnFlags & AFF_68040)
return @"68040";
if (SysBase->AttnFlags & AFF_68030)
return @"68030";
if (SysBase->AttnFlags & AFF_68020)
return @"68020";
if (SysBase->AttnFlags & AFF_68010)
return @"68010";
else
return @"68000";
#else
return nil;
#endif
}
#if defined(OF_AMD64) || defined(OF_X86)
+ (bool)supportsMMX
{
return (x86CPUID(0, 0).eax >= 1 && x86CPUID(1, 0).edx & (1u << 23));
}
+ (bool)supports3DNow
{
return (x86CPUID(0x80000000, 0).eax >= 0x80000001 &&
x86CPUID(0x80000001, 0).edx & (1u << 31));
}
+ (bool)supportsEnhanced3DNow
{
return (x86CPUID(0x80000000, 0).eax >= 0x80000001 &&
x86CPUID(0x80000001, 0).edx & (1u << 30));
}
+ (bool)supportsSSE
{
return (x86CPUID(0, 0).eax >= 1 && x86CPUID(1, 0).edx & (1u << 25));
}
+ (bool)supportsSSE2
{
return (x86CPUID(0, 0).eax >= 1 && x86CPUID(1, 0).edx & (1u << 26));
}
+ (bool)supportsSSE3
{
return (x86CPUID(0, 0).eax >= 1 && x86CPUID(1, 0).ecx & (1u << 0));
}
+ (bool)supportsSSSE3
{
return (x86CPUID(0, 0).eax >= 1 && x86CPUID(1, 0).ecx & (1u << 9));
}
+ (bool)supportsSSE41
{
return (x86CPUID(0, 0).eax >= 1 && x86CPUID(1, 0).ecx & (1u << 19));
}
+ (bool)supportsSSE42
{
return (x86CPUID(0, 0).eax >= 1 && x86CPUID(1, 0).ecx & (1u << 20));
}
+ (bool)supportsAVX
{
return (x86CPUID(0, 0).eax >= 1 && x86CPUID(1, 0).ecx & (1u << 28));
}
+ (bool)supportsAVX2
{
return (x86CPUID(0, 0).eax >= 7 && (x86CPUID(7, 0).ebx & (1u << 5)));
}
+ (bool)supportsAESNI
{
return (x86CPUID(0, 0).eax >= 1 && x86CPUID(1, 0).ecx & (1u << 25));
}
+ (bool)supportsSHAExtensions
{
return (x86CPUID(0, 0).eax >= 7 && x86CPUID(7, 0).ebx & (1u << 29));
}
+ (bool)supportsF16C
{
return (x86CPUID(0, 0).eax >= 1 && x86CPUID(1, 0).ecx & (1u << 29));
}
+ (bool)supportsAVX512Foundation
{
return (x86CPUID(0, 0).eax >= 7 && x86CPUID(7, 0).ebx & (1u << 16));
}
+ (bool)supportsAVX512ConflictDetectionInstructions
{
return (x86CPUID(0, 0).eax >= 7 && x86CPUID(7, 0).ebx & (1u << 28));
}
+ (bool)supportsAVX512ExponentialAndReciprocalInstructions
{
return (x86CPUID(0, 0).eax >= 7 && x86CPUID(7, 0).ebx & (1u << 27));
}
+ (bool)supportsAVX512PrefetchInstructions
{
return (x86CPUID(0, 0).eax >= 7 && x86CPUID(7, 0).ebx & (1u << 26));
}
+ (bool)supportsAVX512VectorLengthExtensions
{
return (x86CPUID(0, 0).eax >= 7 && x86CPUID(7, 0).ebx & (1u << 31));
}
+ (bool)supportsAVX512DoublewordAndQuadwordInstructions
{
return (x86CPUID(0, 0).eax >= 7 && x86CPUID(7, 0).ebx & (1u << 17));
}
+ (bool)supportsAVX512ByteAndWordInstructions
{
return (x86CPUID(0, 0).eax >= 7 && x86CPUID(7, 0).ebx & (1u << 30));
}
+ (bool)supportsAVX512IntegerFusedMultiplyAdd
{
return (x86CPUID(0, 0).eax >= 7 && x86CPUID(7, 0).ebx & (1u << 21));
}
+ (bool)supportsAVX512VectorByteManipulationInstructions
{
return (x86CPUID(0, 0).eax >= 7 && x86CPUID(7, 0).ecx & (1u << 1));
}
+ (bool)supportsAVX512VectorPopulationCountInstruction
{
return (x86CPUID(0, 0).eax >= 7 && x86CPUID(7, 0).ecx & (1u << 14));
}
+ (bool)supportsAVX512VectorNeuralNetworkInstructions
{
return (x86CPUID(0, 0).eax >= 7 && x86CPUID(7, 0).ecx & (1u << 11));
}
+ (bool)supportsAVX512VectorByteManipulationInstructions2
{
return (x86CPUID(0, 0).eax >= 7 && x86CPUID(7, 0).ecx & (1u << 6));
}
+ (bool)supportsAVX512BitAlgorithms
{
return (x86CPUID(0, 0).eax >= 7 && x86CPUID(7, 0).ecx & (1u << 12));
}
+ (bool)supportsAVX512Float16Instructions
{
return (x86CPUID(0, 0).eax >= 7 && x86CPUID(7, 0).edx & (1u << 23));
}
+ (bool)supportsAVX512BFloat16Instructions
{
return (x86CPUID(0, 0).eax >= 7 && x86CPUID(7, 1).eax & (1u << 5));
}
#endif
#if defined(OF_POWERPC) || defined(OF_POWERPC64)
+ (bool)supportsAltiVec
{
# if defined(OF_MACOS)
int name[2] = { CTL_HW, HW_VECTORUNIT }, value = 0;
size_t length = sizeof(value);
if (sysctl(name, 2, &value, &length, NULL, 0) == 0)
return value;
# elif defined(OF_AMIGAOS4)
uint32_t vectorUnit;
GetCPUInfoTags(GCIT_VectorUnit, &vectorUnit, TAG_END);
return (vectorUnit == VECTORTYPE_ALTIVEC);
# elif defined(OF_MORPHOS)
uint32_t supportsAltiVec;
if (NewGetSystemAttrs(&supportsAltiVec, sizeof(supportsAltiVec),
SYSTEMINFOTYPE_PPC_ALTIVEC, TAG_DONE) > 0)
return supportsAltiVec;
# endif
return false;
}
#endif
#ifdef OF_WINDOWS
+ (bool)isWindowsNT
{
return !(GetVersion() & 0x80000000);
}
#endif
- (instancetype)init
{
OF_INVALID_INIT_METHOD
}
@end