Significant performance improvements in GCC 10 through Vectorization and In-lining

Tamar Christina

This year's GNU Compiler Collection (GCC) release not only contains a plethora of new Architecture features, but is also the most performant GCC release to date.

Arm, together with various partners and the GCC community, have been hard at work on…

Problem with GCC and string.h and stdlib

nehal nehal

Note: This was originally posted on 8th October 2008 at http://forums.arm.com

Hi everyone,

i have following trouble with keil arm gnu compiler. i have recently moved to gnu and now i am having hard time to set it up.

description of problem: i am using real…

over 6 years ago
Software Tools
Keil forum

Code reuse attacks: the compiler story

Luke Cheeseman

How does a developer prevent an attacker from taking control of a program when the developer is providing the tools to the attacker? What are code reuse attacks and how can the Arm Architecture remove the vulnerabilities? How can someone use these architectural…

ST HAL Driver + ST USB Stack middleware failing using GNU GCC

Xavi

Dear all,

I am on the process of switching to GNU GCC for compiling an already working project. Most of the functionality has been tested. There is a failing test though: The USB VCP drivers do not seem to perform good.

The client side (PC-Windows) is…

over 1 year ago
Software Tools
Keil forum

selected processor does not support `cpsid i' and `cpsie i' in arm mode.

Nima

hi everyone,

i'm new with ARMprocessor and dont know too much about DS-5. just alittle bit from my Softwares >>> SoC EDS 17.1 (from Altera) - DS-5 5.28 and my OS is Windows 10. I am using DS-5 for my SoC FPGA (DE0_Nano_SoC) Altera, which…

Eclipse not finding toolchain

markwaldin

I've read everything I could put my hands on to figure this out but have had no luck. I installed the win32 exe gcc-arm-none-eabi-6-2017-q2-update-win32-sha2.exe but it is not found by Eclipse. I know it says to leave the environment variable blank…

Help.. moving from GNU linker to armld

rajesh_t_s

Presently, I use ARM cc compiler with GNU Linker, And I've been trying to move completely to the ARM toolchain. But I am not sure how to add symbols in ARM linker while using scatter file..

In ARM GNU linker, while using the .ld file, I could add my…

ROM Self-Test in MDK-ARM - Another Approach Sought

Kilian Timmler

Hi,

I'm in the process of porting my Flash memory check for STM32F0 from gcc to mdk. The gcc check follows a method similar to:

http://stackoverflow.com/questions/24150030/storing-crc-into-an-axf-elf-file

This is a great solution since beside the CRC…

over 4 years ago
Software Tools
Keil forum

Linker configuration from arm-none-eabi-gcc to ARMCC

Bernd

Hello,

I've a project which are started with arm-none-eabi-gcc and added in the last time the ARMCC. The linker configuration can't easy converted.

At the moment I search for a solution to define in the scatter file like the gcc linker file. This…

General aspects using a Discovery Board with a STM32F407VG and uVision from Keil and SW4STM32 fon AC6

Mariano Jimenez-Brenes

Hello, some time ago I started to play with CortexM4,

I bought a Discovery Board with a STM32F407VG in order to be programmed with uVision from Keil.

I am developing a project where the money is very restricted, that's why I was using a free licence from…

over 3 years ago
Software Tools
Keil forum

An update on GNU performance

Kyrylo Tkachov

Welcome back!

A lot has happened since the last GNU Tool chain performance update. The GCC and glibc communities have been hard at work since, improving the compiler and the library with new usability, language, debugging, security and a myriad of other features…

Pre-built GNU8 cross-toolchain by Arm for the A-profile Architecture now available

Ashok Bhat

We are pleased to announce the first Arm's release of pre-built GNU cross-toolchain for the A-profile cores: GCC 8.2-2018.08. The GNU Toolchain for the Cortex-A family is a ready-to-use, open source suite of tools for C, C++ and Assembly programming…

The Importance of a flourishing development tool ecosystem

Ross Bannatyne

One of the major attractions of adopting the Arm Cortex-M architecture is the healthy ecosystem of hardware and software development tools that support all Arm-based products.

Most engineers prefer to have a choice of different options that appeal to…

GNU toolchain performance in 2018

Kyrylo Tkachov

What is the GNU toolchain?

In this blog we will focus on two components of the GNU toolchain, the GNU Compiler Collection (GCC) and the GNU C library (glibc). A full toolchain contains several vital components like assemblers, linkers and debuggers, but in…

Key difference between GCC arm-none-eabi and arm-eabi

techguyz

Hi Experts,

For Cortex R and M processors Linaro has recommended the GCC arm-none-eabi 4.9 whereas for A series processors it is recommending normal GCC eabi.

what is the key difference between the same ?

Regards,

Techguyz

Answered

arm-elf-gcc compiling for cortex-M4

Jo Van Montfort

How to use GNU ARM binutils for cortex-M4? When I try to compile with -mcpu=cortex-M4 -march=armV7e-m I get 'bad value in switches'.

Answered

Build startup_cortexA15MPcore using GNU toolchain. URGENT.

Mazen Ezzeddine

Dear all,

I am trying to build the example startup_cortexA15MPcore (provided with DS-5) using GNU toolchain. The example is originally designed for build using ARM standard tools, and the following variables are hence defined :

CC=armcc

AS=…

How can I use SVC interrupts from C++?

Anthony Wieser

I'm using the gcc toolset, and had hoped to be able use this functionality, however all of the documentation seems to state superseded or suspended.

ARM Information Center

I'm trying to target an STM32F4 processor.

Any pointers to how to do this…

armcc compile c error under DS-5 tool

zg

The example about c++ progran under DS-5 CPP directory is compiled by me with the armcc ,not gcc. But there is an error when compile。

Error: C3321E: automatic configuration failed - could not determine configuration from GCC

make: *** [arm_linux_config…

Answered

what is bare-metal GCC toolchain

kaushal

Hello Friends,

the Development board which i have is Altera SoC Cyclone V, and license which come along with this is entitled DS-5 altera Edition toolkit.

Altera ppl inform me that

This toolkit doesn't include a license to the ARM Compiler.
Altera SoC…

Answered

GCC for ARMv7-A - Where can I get the latest version?

Haris

Hello,

I would like to download the GCC compiler for ARMv7-A. I would like it to support thumb and NEON instructions. Where can I get the latest version?

Also, are there any other open source compilers that meet the above requirements?

Thanks

Answered

How to add epilog and prolog in ARM compiler compiled code ?

Neo

g++ provides an option -pg which allows to write epilg and prolog for functions

Does gcc does not have such an option?

Answered

Cortex-A9 inline asm

Mohamed Jauhar

Note: This was originally posted on 23rd November 2012 at http://forums.arm.com

Hi,
I am getting below error message for arm inlin in gcc compiler , could you please tell me what
is the reason.
I am using Cortex-A9 processor.

for example
inline asm code
…