Using GCC ARM 14

Development Platforms
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Similar to this thread Using GCC ARM 12.2 I am interested in using a newer GCC version. There is a new release of xPack GNU Arm Embedded GCC, Version 14.2.1-1.1 released | xPack GNU Arm Embedded GCC

Is it possible to get this uploaded to platformio/toolchain-gccarmnoneeabi?

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I’m needing the same thing. Recently wrote an open source C++ GD32 peripheral library to replace the one vendor supplies, along with a custom Arduino core for it, using the latest Arduino API. They were both written against features and changes in the latest ARM GCC (14.2) It would make life so much easier to have this as a package.

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@ivankravets is this a possibility?

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Yes, we are working on this request. Give us please a few days.

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Sorry for the delay. Please test it

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Thank you so much for this!! Greatly appreciated!

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Hi @bnmguy ! Did GCC 14 work for you well with platformio? I am having 2 problems with it now:

  1. When trying to debug, arm-none-eabi-as fails with error “Fatal error: unknown option `-g2’“. Seems platformio appends -g2 to assembler, which is not a valid argument anymore (simple “-g” is). So the workaround is to set “debug_build_flags = -g“ manually (“-ggdb2“ is also not acceptable but is supplied by platformio)
  2. When trying to enable LTO, arm-none-eabi-ar fails with error “.pio\build\devboard\FrameworkCMSISDevice\system.o: plugin needed to handle lto object. This I haven’t solved yet and have to keep lto disabled.