How can I get the iOS device CPU architecture in runtime
You can use sysctlbyname :
#include <sys/types.h>
#include <sys/sysctl.h>
#include <mach/machine.h>
NSString *getCPUType(void)
{
NSMutableString *cpu = [[NSMutableString alloc] init];
size_t size;
cpu_type_t type;
cpu_subtype_t subtype;
size = sizeof(type);
sysctlbyname("hw.cputype", &type, &size, NULL, 0);
size = sizeof(subtype);
sysctlbyname("hw.cpusubtype", &subtype, &size, NULL, 0);
// values for cputype and cpusubtype defined in mach/machine.h
if (type == CPU_TYPE_X86)
{
[cpu appendString:@"x86 "];
// check for subtype ...
} else if (type == CPU_TYPE_ARM)
{
[cpu appendString:@"ARM"];
switch(subtype)
{
case CPU_SUBTYPE_ARM_V7:
[cpu appendString:@"V7"];
break;
// ...
}
}
return [cpu autorelease];
}
How to determine binary image architecture at runtime?
Alright time for the long answer. The mach headers of the dyld images in the application contain the information you are looking for. I have added an example that I only tested to work and nothing else so I would not recommend pasting it directly into production code. What it does it get all of the mach headers for all of the currently loaded dyld images and prints an output very similar to the Binary Images section of the crash log. The methods I call are not thread safe. The one thing I am missing is the end address to the binary image because I did not bother looking up how to find that.
Main.m
#import <UIKit/UIKit.h>
#include <string.h>
#import <mach-o/loader.h>
#import <mach-o/dyld.h>
#import <mach-o/arch.h>
void printImage(const struct mach_header *header)
{
uint8_t *header_ptr = (uint8_t*)header;
typedef struct load_command load_command;
const NXArchInfo *info = NXGetArchInfoFromCpuType(header->cputype, header->cpusubtype);
//Print the architecture ex. armv7
printf("%s ", info->name);
header_ptr += sizeof(struct mach_header);
load_command *command = (load_command*)header_ptr;
for(int i = 0; i < header->ncmds > 0; ++i)
{
if(command->cmd == LC_UUID)
{
struct uuid_command ucmd = *(struct uuid_command*)header_ptr;
CFUUIDRef cuuid = CFUUIDCreateFromUUIDBytes(kCFAllocatorDefault, *((CFUUIDBytes*)ucmd.uuid));
CFStringRef suuid = CFUUIDCreateString(kCFAllocatorDefault, cuuid);
CFStringEncoding encoding = CFStringGetFastestEncoding(suuid);
//Print UUID
printf("<%s> ", CFStringGetCStringPtr(suuid, encoding));
CFRelease(cuuid);
CFRelease(suuid);
break;
}
header_ptr += command->cmdsize;
command = (load_command*)header_ptr;
}
}
void printBinaryImages()
{
printf("Binary Images:\n");
//Get count of all currently loaded DYLD
uint32_t count = _dyld_image_count();
for(uint32_t i = 0; i < count; i++)
{
//Name of image (includes full path)
const char *dyld = _dyld_get_image_name(i);
//Get name of file
int slength = strlen(dyld);
int j;
for(j = slength - 1; j>= 0; --j)
if(dyld[j] == '/') break;
//strndup only available in iOS 4.3
char *name = strndup(dyld + ++j, slength - j);
printf("%s ", name);
free(name);
const struct mach_header *header = _dyld_get_image_header(i);
//print address range
printf("0x%X - ??? ", (uint32_t)header);
printImage(header);
//print file path
printf("%s\n", dyld);
}
printf("\n");
}
int main(int argc, char *argv[])
{
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
printBinaryImages();
[pool release];
return retVal;
}
Example output:
Binary Images:
TestBed 0x1000 - ??? i386 <E96D079C-E035-389D-AA12-71E968C76BFE> /Users/username/Library/Application Support/iPhone Simulator/4.3/Applications/6F64D9F8-9179-4E21-AE32-4D4604BE77E5/TestBed.app/TestBed
UIKit 0x8000 - ??? i386 <72030911-362F-3E47-BAF3-ACD2CB6F88C0> /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator4.3.sdk/System/Library/Frameworks/UIKit.framework/UIKit
Foundation 0x772000 - ??? i386 <EB718CBD-1D57-3D31-898D-7CFA9C172A46> /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator4.3.sdk/System/Library/Frameworks/Foundation.framework/Foundation
CoreGraphics 0xA10000 - ??? i386 <D168A716-71F2-337A-AE0B-9DCF51AE9181> /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator4.3.sdk/System/Library/Frameworks/CoreGraphics.framework/CoreGraphics
libSystem.dylib 0xCAA000 - ??? i386 <8DF0AFCD-FFA5-3049-88E2-7410F8398749> /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator4.3.sdk/usr/lib/libSystem.dylib
...
c++ mac/m1/intel how to get cpu architecture?
Starting QProcess does not work, he inherits base application architecture.
I found out that apple added a command to figure out if I'm running in "translated" mode, this can then be used as indication if we are on intel or arm.
https://developer.apple.com/documentation/apple-silicon/about-the-rosetta-translation-environment
Detect processor ArmV7 vs ArmV7s. Objective-C
I don't know for certain that this will provide the information you'd like but I would try sysctl:
int32_t value = 0;
size_t length = sizeof(value);
sysctlbyname("hw.cpusubtype", &value, &length, NULL, 0);
The values for subtype are in mach/machine.h.
/*
* ARM subtypes
*/
#define CPU_SUBTYPE_ARM_ALL ((cpu_subtype_t) 0)
#define CPU_SUBTYPE_ARM_V4T ((cpu_subtype_t) 5)
#define CPU_SUBTYPE_ARM_V6 ((cpu_subtype_t) 6)
#define CPU_SUBTYPE_ARM_V5TEJ ((cpu_subtype_t) 7)
#define CPU_SUBTYPE_ARM_XSCALE ((cpu_subtype_t) 8)
#define CPU_SUBTYPE_ARM_V7 ((cpu_subtype_t) 9)
#define CPU_SUBTYPE_ARM_V7F ((cpu_subtype_t) 10) /* Cortex A9 */
#define CPU_SUBTYPE_ARM_V7K ((cpu_subtype_t) 12) /* Kirkwood40 */
How to get device make and model on iOS?
EITHER try this library: http://github.com/erica/uidevice-extension/ (by Erica Sadun). (The library is 7-8 years old, and hence is obsolete)
(Sample Code):
[[UIDevice currentDevice] platformType] // ex: UIDevice4GiPhone
[[UIDevice currentDevice] platformString] // ex: @"iPhone 4G"
OR You can use this method:
You can get the device model number using uname from sys/utsname.h. For example:
Objective-C
#import <sys/utsname.h> // import it in your header or implementation file.
NSString* deviceName()
{
struct utsname systemInfo;
uname(&systemInfo);
return [NSString stringWithCString:systemInfo.machine
encoding:NSUTF8StringEncoding];
}
Swift 3
extension UIDevice {
var modelName: String {
var systemInfo = utsname()
uname(&systemInfo)
let machineMirror = Mirror(reflecting: systemInfo.machine)
let identifier = machineMirror.children.reduce("") { identifier, element in
guard let value = element.value as? Int8, value != 0 else { return identifier }
return identifier + String(UnicodeScalar(UInt8(value)))
}
return identifier
}
}
print(UIDevice.current.modelName)
The result should be:
// Output on a simulator
@"i386" on 32-bit Simulator
@"x86_64" on 64-bit Simulator
// Output on an iPhone
@"iPhone1,1" on iPhone
@"iPhone1,2" on iPhone 3G
@"iPhone2,1" on iPhone 3GS
@"iPhone3,1" on iPhone 4 (GSM)
@"iPhone3,2" on iPhone 4 (GSM Rev A)
@"iPhone3,3" on iPhone 4 (CDMA/Verizon/Sprint)
@"iPhone4,1" on iPhone 4S
@"iPhone5,1" on iPhone 5 (model A1428, AT&T/Canada)
@"iPhone5,2" on iPhone 5 (model A1429, everything else)
@"iPhone5,3" on iPhone 5c (model A1456, A1532 | GSM)
@"iPhone5,4" on iPhone 5c (model A1507, A1516, A1526 (China), A1529 | Global)
@"iPhone6,1" on iPhone 5s (model A1433, A1533 | GSM)
@"iPhone6,2" on iPhone 5s (model A1457, A1518, A1528 (China), A1530 | Global)
@"iPhone7,1" on iPhone 6 Plus
@"iPhone7,2" on iPhone 6
@"iPhone8,1" on iPhone 6S
@"iPhone8,2" on iPhone 6S Plus
@"iPhone8,4" on iPhone SE
@"iPhone9,1" on iPhone 7 (CDMA)
@"iPhone9,3" on iPhone 7 (GSM)
@"iPhone9,2" on iPhone 7 Plus (CDMA)
@"iPhone9,4" on iPhone 7 Plus (GSM)
@"iPhone10,1" on iPhone 8 (CDMA)
@"iPhone10,4" on iPhone 8 (GSM)
@"iPhone10,2" on iPhone 8 Plus (CDMA)
@"iPhone10,5" on iPhone 8 Plus (GSM)
@"iPhone10,3" on iPhone X (CDMA)
@"iPhone10,6" on iPhone X (GSM)
@"iPhone11,2" on iPhone XS
@"iPhone11,4" on iPhone XS Max
@"iPhone11,6" on iPhone XS Max China
@"iPhone11,8" on iPhone XR
@"iPhone12,1" on iPhone 11
@"iPhone12,3" on iPhone 11 Pro
@"iPhone12,5" on iPhone 11 Pro Max
@"iPhone12,8" on iPhone SE (2nd Gen)
@"iPhone13,1" on iPhone 12 Mini
@"iPhone13,2" on iPhone 12
@"iPhone13,3" on iPhone 12 Pro
@"iPhone13,4" on iPhone 12 Pro Max
//iPad 1
@"iPad1,1" on iPad - Wifi (model A1219)
@"iPad1,2" on iPad - Wifi + Cellular (model A1337)
//iPad 2
@"iPad2,1" - Wifi (model A1395)
@"iPad2,2" - GSM (model A1396)
@"iPad2,3" - 3G (model A1397)
@"iPad2,4" - Wifi (model A1395)
// iPad Mini
@"iPad2,5" - Wifi (model A1432)
@"iPad2,6" - Wifi + Cellular (model A1454)
@"iPad2,7" - Wifi + Cellular (model A1455)
//iPad 3
@"iPad3,1" - Wifi (model A1416)
@"iPad3,2" - Wifi + Cellular (model A1403)
@"iPad3,3" - Wifi + Cellular (model A1430)
//iPad 4
@"iPad3,4" - Wifi (model A1458)
@"iPad3,5" - Wifi + Cellular (model A1459)
@"iPad3,6" - Wifi + Cellular (model A1460)
//iPad AIR
@"iPad4,1" - Wifi (model A1474)
@"iPad4,2" - Wifi + Cellular (model A1475)
@"iPad4,3" - Wifi + Cellular (model A1476)
// iPad Mini 2
@"iPad4,4" - Wifi (model A1489)
@"iPad4,5" - Wifi + Cellular (model A1490)
@"iPad4,6" - Wifi + Cellular (model A1491)
// iPad Mini 3
@"iPad4,7" - Wifi (model A1599)
@"iPad4,8" - Wifi + Cellular (model A1600)
@"iPad4,9" - Wifi + Cellular (model A1601)
// iPad Mini 4
@"iPad5,1" - Wifi (model A1538)
@"iPad5,2" - Wifi + Cellular (model A1550)
//iPad AIR 2
@"iPad5,3" - Wifi (model A1566)
@"iPad5,4" - Wifi + Cellular (model A1567)
// iPad PRO 9.7"
@"iPad6,3" - Wifi (model A1673)
@"iPad6,4" - Wifi + Cellular (model A1674)
@"iPad6,4" - Wifi + Cellular (model A1675)
//iPad PRO 12.9"
@"iPad6,7" - Wifi (model A1584)
@"iPad6,8" - Wifi + Cellular (model A1652)
//iPad (5th generation)
@"iPad6,11" - Wifi (model A1822)
@"iPad6,12" - Wifi + Cellular (model A1823)
//iPad PRO 12.9" (2nd Gen)
@"iPad7,1" - Wifi (model A1670)
@"iPad7,2" - Wifi + Cellular (model A1671)
@"iPad7,2" - Wifi + Cellular (model A1821)
//iPad PRO 10.5"
@"iPad7,3" - Wifi (model A1701)
@"iPad7,4" - Wifi + Cellular (model A1709)
// iPad (6th Gen)
@"iPad7,5" - WiFi
@"iPad7,6" - WiFi + Cellular
// iPad (7th Gen)
@"iPad7,11" - WiFi
@"iPad7,12" - WiFi + Cellular
//iPad PRO 11"
@"iPad8,1" - WiFi
@"iPad8,2" - 1TB, WiFi
@"iPad8,3" - WiFi + Cellular
@"iPad8,4" - 1TB, WiFi + Cellular
//iPad PRO 12.9" (3rd Gen)
@"iPad8,5" - WiFi
@"iPad8,6" - 1TB, WiFi
@"iPad8,7" - WiFi + Cellular
@"iPad8,8" - 1TB, WiFi + Cellular
//iPad PRO 11" (2nd Gen)
@"iPad8,9" - WiFi
@"iPad8,10" - 1TB, WiFi
//iPad PRO 12.9" (4th Gen)
@"iPad8,11" - (WiFi)
@"iPad8,12" - (WiFi+Cellular)
// iPad mini 5th Gen
@"iPad11,1" - WiFi
@"iPad11,2" - Wifi + Cellular
// iPad Air 3rd Gen
@"iPad11,3" - Wifi
@"iPad11,4" - Wifi + Cellular
// iPad (8th Gen)
@"iPad11,6" - iPad 8th Gen (WiFi)
@"iPad11,7" - iPad 8th Gen (WiFi+Cellular)
// iPad Air 4th Gen
@"iPad13,1" - iPad air 4th Gen (WiFi)
@"iPad13,2" - iPad air 4th Gen (WiFi+Cellular)
//iPod Touch
@"iPod1,1" on iPod Touch
@"iPod2,1" on iPod Touch Second Generation
@"iPod3,1" on iPod Touch Third Generation
@"iPod4,1" on iPod Touch Fourth Generation
@"iPod5,1" on iPod Touch 5th Generation
@"iPod7,1" on iPod Touch 6th Generation
@"iPod9,1" on iPod Touch 7th Generation
// Apple Watch
@"Watch1,1" on Apple Watch 38mm case
@"Watch1,2" on Apple Watch 38mm case
@"Watch2,6" on Apple Watch Series 1 38mm case
@"Watch2,7" on Apple Watch Series 1 42mm case
@"Watch2,3" on Apple Watch Series 2 38mm case
@"Watch2,4" on Apple Watch Series 2 42mm case
@"Watch3,1" on Apple Watch Series 3 38mm case (GPS+Cellular)
@"Watch3,2" on Apple Watch Series 3 42mm case (GPS+Cellular)
@"Watch3,3" on Apple Watch Series 3 38mm case (GPS)
@"Watch3,4" on Apple Watch Series 3 42mm case (GPS)
@"Watch4,1" on Apple Watch Series 4 40mm case (GPS)
@"Watch4,2" on Apple Watch Series 4 44mm case (GPS)
@"Watch4,3" on Apple Watch Series 4 40mm case (GPS+Cellular)
@"Watch4,4" on Apple Watch Series 4 44mm case (GPS+Cellular)
@"Watch5,1" on Apple Watch Series 5 40mm case (GPS)
@"Watch5,2" on Apple Watch Series 5 44mm case (GPS)
@"Watch5,3" on Apple Watch Series 5 40mm case (GPS+Cellular)
@"Watch5,4" on Apple Watch Series 5 44mm case (GPS+Cellular)
@"Watch5,9" on Apple Watch SE 40mm case (GPS)
@"Watch5,10" on Apple Watch SE 44mm case (GPS)
@"Watch5,11" on Apple Watch SE 40mm case (GPS+Cellular)
@"Watch5,12" on Apple Watch SE 44mm case (GPS+Cellular)
@"Watch6,1" on Apple Watch Series 6 40mm case (GPS)
@"Watch6,2" on Apple Watch Series 6 44mm case (GPS)
@"Watch6,3" on Apple Watch Series 6 40mm case (GPS+Cellular)
@"Watch6,4" on Apple Watch Series 6 44mm case (GPS+Cellular)
Which slice will be picked by an iPhone
You could try this way. You will have to add more options of cpu_type_t.
func getCPUType() -> String {
var size: size_t = 0
var type: cpu_type_t = 0
var subtype: cpu_subtype_t = 0
size = MemoryLayout<cpu_type_t>.size;
sysctlbyname("hw.cputype", &type, &size, nil, 0);
size = MemoryLayout<cpu_subtype_t>.size;
sysctlbyname("hw.cpusubtype", &subtype, &size, nil, 0);
// values for cputype and cpusubtype defined in mach/machine.h
var cpu = ""
if (type == CPU_TYPE_X86)
{
cpu += "x86"
} else if (type == CPU_TYPE_VAX) {
cpu += "vax"
} else if (type == CPU_TYPE_ARM) {
cpu += "ARM"
switch(subtype)
{
case CPU_SUBTYPE_ARM_V7:
cpu += "V7"
break;
// ...
default: break
}
}
return cpu
}
Edited: First try with "hw.cpufamily"
sysctlbyname("hw.cpufamily", &type, &size, nil, 0);
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