Dear Forum,

Using

~$ arm-none-eabi-gcc -v                                                                             
Using built-in specs.
COLLECT_GCC=arm-none-eabi-gcc
COLLECT_LTO_WRAPPER=/opt/gcc-arm-none-eabi/bin/../libexec/gcc/arm-none-eabi/9…

Hi,

I am using IDE Xilinx SDK 2019.1 for my application and running it on ARM cortex a53  processor with Neon and floating point engine support available. I am working on a bare metal application.

The problem I am facing is that, I am unable to understand…

I am using ARMv8 GCC compiler(aarch64-none-elf-gcc) for my bare metal application on ARM cortex a53. I am using neon intrinsics with plain C in my code so I would like to ensure to use all optimization option available for this compiler.

I tried -mfpu…

I am using ARMv8 GCC compiler and I would like to optimize Neon Intrinsics code for better execution time performance. I have already tried loop unrolling and I am using look up table for the computation of log10. Any ideas?

Here is the code:

static inline…

Hey guys,

I have been exploring building PIC using the gcc toolchain and I think there is a bug.

I first build a shared library using 

arm-none-eabi-gcc -shared -mcpu=cortex-m4 -mthumb -Wall -g -fPIC -fmessage-length=0 --specs=nosys.specs mylib.c -o libmylib…

Greetings, 

Im currently trying to fix a strange behavior of objcopy, which sometimes generates invalid output binary image with 0x4 byte shift. 

I found this issue because this shift was affecting my __init_array_start__ table (which is indeed pointing…

Moved to:

https://community.arm.com/developer/ip-products/processors/f/cortex-a-forum/43775/shifted-binary-produced-by-arm-none-eabi-objcopy

I've just created another release of my bleeding-edge-toolchain script, which builds a complete toolchain for ARM microcontrollers. This toolchain uses the most recent versions of all possible components:

• gcc-9.1.0
• newlib-3.1.0
• binutils-2.32
• gdb…

shyam@shyam:~/projects/zynq/microzed/linux_source/Test_Chips$ make
make -C  /home/shyam/projects/zynq/microzed/linux_source/Test_Chips/../dev_tools/build
make[1]: Entering directory `/home/shyam/projects/zynq/microzed/linux_source/dev_tools/build'
Making…

Hello,

I am trying to learn with ARM, and I have downloaded the toolchain .tar and extracted it to my home directory on Ubuntu 16.04 64bit. As you know, GNU GCC is already on the system. I do not know what to do now, I see no step by step instructions…

  I've the following implementation for a svc exception handler on a cortex-m0:

    int  __attribute__((naked))  
    sv_call_handler(uint32_t n, uint32_t arg1, uint32_t arg2, uint32_t arg3,  
                    uint32_t arg4, uint32_t arg5)
     {
          irq_off();


When I built it for cortex…

EDIT: Stable GCC 7.1.0 is already released - see first reply below for details!

If you're very impatient waiting for the full GCC 7.1.0 release (expected this month), you can try experimental GCC 7 version with your ARM microcontroller right now (…