arm64

Differences between arm64 and aarch64

由 假如想象 提交于 2019-12-02 16:05:18
I have two "unlocked" devices, an iPad mini 3, and a Galaxy Edge 6, both endowed with a terminal and a minimalistic set of unix commands. I thought both devices have arm64 processors but when I ran uname -a on both devices I got the following : for the iPad mini 3 : xxxxs-iPad:/var/mobile root# uname -a Darwin xxxx-iPad 14.0.0 Darwin Kernel Version 14.0.0: Wed Jun 24 00:50:15 PDT 2015; root:xnu-2784.30.7-30/RELEASE_ARM64_S5L8960X iPad4, **arm64**, J85mAP for the Samsung Galaxy s6 Edge : u0_a203@zerolte:/ $ uname -a Linux localhost 3.10.61-4497415 #1 SMP PREEMPT Thu Apr 9 15:06:40 KST 2015 *

What is difference between arm64 and armhf?

由 ぐ巨炮叔叔 提交于 2019-12-02 16:03:37
Raspberry Pi Type 3 has 64-bit CPU, but its architecture is not arm64 but armhf . What is the difference between arm64 and armhf ? Francesca Nannizzi Where are you seeing that the architecture is armhf? On my Raspberry Pi 3, I get: $ uname -a armv7l Anyway, armv7 indicates that the system architecture is 32-bit. The first ARM architecture offering 64-bit support is armv8. See this table for reference. You are correct that the CPU in the Raspberry Pi 3 is 64-bit, but the Raspbian OS has not yet been updated for a 64-bit device. 32-bit software can run on a 64-bit system (but not vice versa).

How to link iPad Air app (arm64) against existing armv7 static libraries?

由 好久不见. 提交于 2019-12-02 15:58:45
问题 I have compiled armv7 static libraries (lib*.a) and i'm going to compile iPad Air app (arm64). I'm getting linker warning and then linker error: $ lipo -info /Users/user/Documents/dev/src/iOS_Projects/iProject/libMyLib.a input file /Users/user/Documents/dev/src/iOS_Projects/iProject/libMyLib.a is not a fat file Non-fat file: /Users/user/Documents/dev/src/iOS_Projects/iProject/libMyLib.a is architecture: armv7 Ld: warning: ignoring file /Users/user/Documents/dev/src/iOS_Projects/iProject

iOS ARM64 Syscalls

由 孤街醉人 提交于 2019-12-02 09:29:40
I am learning more about shellcode and making syscalls in arm64 on iOS devices. The device I am testing on is iPhone 6S. I got the list of syscalls from this link ( https://github.com/radare/radare2/blob/master/libr/include/sflib/darwin-arm-64/ios-syscalls.txt ). I learnt that x8 is used for putting the syscall number for arm64 from here ( http://arm.ninja/2016/03/07/decoding-syscalls-in-arm64/ ). I figured the various registers used to pass in parameters for arm64 should be the same as arm so I referred to this link ( https://w3challs.com/syscalls/?arch=arm_strong ), taken from https://azeria

Will playstore reject apps with armeabi-v7a, arm64-v8a, x86 but no x86-64 support?

由 只愿长相守 提交于 2019-12-02 02:12:47
From android developer website, https://developer.android.com/distribute/best-practices/develop/64-bit it is clear that starting August 1, 2019, apps published on Google Play will need to support 64-bit architectures. Our current app has native libraries for armeabi-v7a, arm64-v8a, x86 ABIs but no x86-64. This is because one of the cordova plugins we are using doesn't provide X86-64 support. Will playstore reject the app update or pass it considering there is arm64-v8a support or we will have to drop support for x86 to stay compliant? tl;dr Unity Technologies' User ScottF (1) confirmed with

Determine if the device is ARM64

由 落爺英雄遲暮 提交于 2019-12-02 02:04:40
问题 I'm trying to make a tweak for iOS 7 so that when a device is ARM64 it runs one version and when it is not it runs another (since float is for 32 bit and double is for 64 (If you have a solution for that let me know.) So it would be like this if ARM64 { \\run double code } else { \\run float code } 回答1: You would do the following #if __LP64__ \\You're running on 64 bit #else \\You're running on 32 bit #endif 回答2: On arm64 environment, the pointer take 8 bytes. - (BOOL)isArm64 { static BOOL

PUSH {lr} and POP {lr} in ARM Arch64

由 主宰稳场 提交于 2019-12-01 23:40:20
What is the equivalent instruction for PUSH{lr} and POP{lr} in ARM Arch64 instruction set . Is STR X30, [SP, #8] correct ? could you please explain the concept of maintaining stack alignment ? I am relatively new to ARMv8 so excuse me. If you ask the C compiler to generate an assembly language listing from your source, you'll see how it handles pushing data on the stack for ARMv8. This might not be the only way to do it, but GCC does it this way: sub sp, sp, #32 \\ Open up some temp stack space stp x19, x20, [sp] \\ save 2 pairs of registers stp x21, x30, [sp,#16] <your code> ldp x19, x20, [sp

Rustc/LLVM generates faulty code for aarch64 with opt-level=0

由 孤人 提交于 2019-12-01 18:14:59
I have two files which are assembled/compiled/linked into minimalistic kernel. start.s: .set CPACR_EL1_FPEN, 0b11 << 20 .set BOOT_STACK_SIZE, 8 * 1024 .global __boot_stack .global __start .global __halt .bss .align 16 __boot_stack: .fill BOOT_STACK_SIZE .text __start: /* disable FP and SIMD traps */ mov x0, #CPACR_EL1_FPEN msr cpacr_el1, x0 /* set stack */ adr x0, __boot_stack add sp, x0, #BOOT_STACK_SIZE /* call the Rust entry point */ bl __boot __halt: /* halt CPU */ wfi b __halt boot.rs: #[no_mangle] pub extern fn __boot() { unsafe { let ptr = 0x9000000 as *mut u8; *ptr = '!' as u8; } } For

Rustc/LLVM generates faulty code for aarch64 with opt-level=0

由 爷，独闯天下 提交于 2019-12-01 17:57:28
问题 I have two files which are assembled/compiled/linked into minimalistic kernel. start.s: .set CPACR_EL1_FPEN, 0b11 << 20 .set BOOT_STACK_SIZE, 8 * 1024 .global __boot_stack .global __start .global __halt .bss .align 16 __boot_stack: .fill BOOT_STACK_SIZE .text __start: /* disable FP and SIMD traps */ mov x0, #CPACR_EL1_FPEN msr cpacr_el1, x0 /* set stack */ adr x0, __boot_stack add sp, x0, #BOOT_STACK_SIZE /* call the Rust entry point */ bl __boot __halt: /* halt CPU */ wfi b __halt boot.rs: #

duplicate symbols for architecture arm64 (Xcode error)

由 谁说胖子不能爱 提交于 2019-12-01 17:36:49
I deleted all reference to GoogleMobileAdsSDKiOS-7.1 from my project and added 7.4.1. When I ran app on simulator everything works fine but when running on device I get App Mach-O Linker Error. duplicate symbol l017 in: /Users/ib/Desktop/Monster GoogleAds7.4.1/GoogleMobileAdsSdkiOS- 7.4.1/GoogleMobileAds.framework/GoogleMobileAds(GADAdNetworkJavaScriptAdViewDelegate.o) /Users/ib/Desktop/Monster GoogleAds7.4.1/GoogleMobileAdsSdkiOS-7.4.1/GoogleMobileAds.framework/GoogleMobileAds(GADRewardBasedVideoAd+Mediation.o) duplicate symbol l018 in: /Users/ib/Desktop/Monster GoogleAds7.4.1
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