I'm working on mac OS 10.7.4. using Xcode 4.3.2 . I had a *.a static library file from my partner. I want to know which architecture it is built for. Is it ARMv6, ARMv7, i386 or other architecture...

I'm trying to read CP15 coprocessor in the following System-on-chip Cortex A7 - ARMv7-A Below my snippet void main (void) { unsigned int reg_value = 0; asm volatile("mrc p15, 0, %0, c0, c0, 0"...

Do there exist intrinsics for ARM C compilers to do add-with-carry operations, or is it necessary to use assembly language? On x86, there is _addcarry_u64 for add-with-carry. (There's also the new...

I'm trying to generate Ninja makefiles to cross compile a C++ project with Clang for an ARM Cortex A5 CPU. I created a toolchain file for CMake but it seems like there is an error or something miss...

I have been experimenting with a simple true/false sharing benchmark, which does regular load+increment+write on a pointer. Basically this: static void do_increments(volatile size_t *buffer, size_t...

I'm trying to cross compile programs (currently avconv from libav) for a Nokia N9 phone using arm-linux-gnueabi-gcc from Linux Mint's 64-bit repository. The compiler's libc version is 2.15 and the ...

I have an application that I am porting from the Keil IDE to build with the GNU toolchain due to license issues. I have successfully be able to set up, build, flash and run the application on the d...

I'm looking for a TCP/IP stack that can be used without an OS. Our customer has an "aversion" to interrupts and doesn't want a real OS on a embedded board we're building. It's desirable to move as ...

I have read about system calls in Linux, and everywhere description is given regarding x86 architecture (0x80 interrupt and SYSENTER). But I am not able to track down the files and process for a sy...

I am completely new to assembly and would like to learn arm assembly (simply because I own an m1 mac). I can't really find many ressources online, that's why I'm here. My code is as follows (file i...

RLS is giving the following error message when working on a project with an ARM target: E0463: can't find crate for test can't find crate Reproduction: cargo new --bin app cd app mkdir .cargo ech...

I am using the STM32F7-Discovery board and have been stuck at trying to enable the DWT cycle counter. From what I've seen online this should suffice for enabling it: CoreDebug->DEMCR |= CoreDebu...

I'm using a STM32F107 cortex m3 microcontroller. I'm using the Keil uvision IDE for the project. I have an application which is running properly at the starting location i.e 0x0800 0000. If I chang...

I have been trying to create a neatly-organized makefile project template utilizing the ARM mbed library. I have already solved a few of the problems (see this post) related to header file paths. H...

Context is: STM32H753 bare-metal software compiled with arm-none-eabi-gcc. The reset handler is implemented in C and located in Flash memory: void reset_handler_c(void) { asm_func(); } The asm fu...

The final images produced by compliers contain both bin file and extended loader format ELf file ,what is the difference between the two , especially the utility of ELF file.

I'm running an ubuntu server 21.10 on RasberryPi4.Docker version 20.10.7, build 20.10.7 0ubuntu5. I tried docker prune and to reinstall docker fully and even reinstall ubuntu, but nothing seems to ...

Intel supports RDRAND (also known as Intel secure key) instruction for returning random numbers. And it's available in Ivy Bridge processors. I wonder, is there any ARM processor featuring instruct...

I'm a real newbie to iOS development and wanna make a new GitHub blog. I'm following How to install jekyll on Apple M1 Macbook as a reference. And I've tried installing Jekyll on my M1 Pro Macbook ...

I know that in my ARM FEAT_FP16 is supported. I expect seeing fp16 in the list of features reported by cat /proc/cpuinfo: $ cat /proc/cpuinfo | grep fp | sort -u Features : fp asimd evtstrm aes pmu...

I want to emulate Raspberry Pi 4 using QEMU, but I am not able to find any image for RPi4. I need a kernel with which QEMU can emulate a Cortex-A72.

For my project I must use inline assembly instructions such as rdtsc to calculate the execution time of some C/C++ instructions. The following code seems to work on Intel but not on ARM processors...

Introduction I am a student who wants to roughly measure the interrupt latency of ARM Cortex-M series chips without using an oscilloscope. However, I have encountered a very peculiar issue that has...

I'm trying to understand the start and end of functions in ARM assembly: PUSH {R0-R2, LR} POP {R0-R2, PC} Looking at this piece of code in IDA here's what I understood (Lets assume SP is 0x100):...

In the ARM documentation, it mentions that The Cortex-M4 processor supports ARMv7 unaligned accesses, and performs all accesses as single, unaligned accesses. They are converted into two or mo...