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GNU MCU Eclipse ARM Embedded GCC

This is the GNU MCU Eclipse (formerly GNU ARM Eclipse) version of the GNU Arm Embedded Toolchain.

Easy install

The GNU MCU Eclipse ARM Embedded GCC toolchain is also available as a binary xPack and can be conveniently installed with xpm:

$ xpm install --global @gnu-mcu-eclipse/arm-none-eabi-gcc

For more details on how to install the toolchain, please see How to install the ARM toolchain? page.

Compliance

This release closely follows the official ARM distribution, as described in the original ARM release text files:

  • gnu-mcu-eclipse/arm-readme.txt
  • gnu-mcu-eclipse/arm-release.txt

Changes

Compared to the ARM distribution, the build procedure is more or less the same and there should be no functional differences, except the following bug fixes:

  • a patch was applied to binutils to fix the 32-bit objcopy bug 24065
  • GDB was built the Git commit ad0f979c9 from 2019-01-29, to fix the bugs affecting C++ LTO projects 24145
  • by default, the GCC build script fails to create liblto_plugin-0.dll for static builds with mingw; code to create the plugin was added
  • the liblto_plugin copied/linked to the lib/bdf-plugins for ar to find it and be able to process archives with LTO objects
  • a patch was applied to gcc to fix the Windows LTO with -g bug 89183
  • a patch was applied to gcc to fix the Windows paths with spaces bug 89249

Compatibility

The binaries were built using xPack Build Box (XBB), a set of build environments based on slightly older distributions, that should be compatible with most recent systems.

  • GNU/Linux: all binaries built with GCC 7.2, running in a CentOS 6 Docker container
  • Windows: all binaries built with mingw-w64 GCC 7.2, running in a CentOS 6 Docker container
  • macOS: all binaries built with GCC 7.2, running in a custom Homebrew instance on macOS 10.10.5

Build

The scripts used to build this distribution are in:

  • gnu-mcu-eclipse/scripts

For the prerequisites and more details on the build procedure, please see the How to build the ARM Embedded GCC binaries? page.

Documentation

The original PDF documentation is available in:

  • share/doc/pdf

More info

For more info and support, please see the GNU MCU Eclipse project site:

http://gnu-mcu-eclipse.github.io

Thank you for using GNU MCU Eclipse,

Liviu Ionescu