Updating ARM GCC, pio automatically reverts back

PlatformIO Core
1

Hello,

I am currently porting FreeRTOSv10 to an Adafruit Feather M0 (ATSAMD21G18, Cortex-M0+). I have noticed that some assembly (asm(..)) won’t compile out-of-the box if “.syntax unified” is used and error messages for assembly code change when one changes optimization flags. Anyway, that’s not the point of this topic. I now want to eliminate the possibility that this is the compiler’s fault.

I am on platformio 3.5.0rc8 and using the Atmel SAM platform. Doing a pio update gives:

Platform Manager
================
Platform Atmel SAM
--------
Updating atmelsam                        @ 2.7.1          [Up-to-date]
Updating framework-arduinosam            @ 2.10616.1      [Up-to-date]
Updating toolchain-gccarmnoneeabi        @ 1.40804.0      [Up-to-date]
Updating tool-bossac                     @ 1.10700.0      [Up-to-date]

The compiler version in the toolchain-gccarmnoneeabi is gcc version 4.8.4 20140725, more than 3 years old.

Platformio won’t update that package, although I can see on (Service End for Bintray, JCenter, GoCenter, and ChartCenter | JFrog) that version 1.50401.0 was released 4 months ago. I can manually download the package for x86/x64 linux (Service End for Bintray, JCenter, GoCenter, and ChartCenter | JFrog), delete the contents of my ~/.platformio/packages/toolchain-gccarmnoneeabi folder, extract the new one and manually execute the gcc binary there (returns 5.4.1 20160919 (release)).

However, once these files are overwritten, and I execute a pio run, it reverts me back to the old version!

$ pio run
PackageManager: Installing toolchain-gccarmnoneeabi @ >=1.40803.0,<1.40805.0
Downloading...
Unpacking...

What am I doing wrong here? How can I (manually, if I have to) update my compiler suite without pio reverting me back?

2

Just change version here platform-atmelsam/platform.json at develop · platformio/platform-atmelsam · GitHub

1 Like
3

Thank you, this worked. But wouldn’t it better for every if every platform using the arm-none-eabi compiler would be updated to make use of the new compiler?

4

We try to be maximum compatible with Arduino IDE. They still use 4.x toolchain.

If you need new toolchain, just fork our dev/platform and modify dependencies. Then in your “platformio.ini” please use “platform = https://github.com/username/repo.git”. Please replace with a valid repo url.