Install xPack GNU Arm Embedded GCC toolchain on Apple M1 Silicon (aarch64 / arm64)

Install Arm Embedded GCC toolchain on Apple M1 Silicon (aarch64, arm64)

# Install xpm using npm
$ npm install --global xpm@latest

# Install xPack distribution of Arm toolchain with Apple M1 Silicon support
$ xpm install @xpack-dev-tools/arm-none-eabi-gcc@10.3.1-2.3.1

# Add Arm toolchain binaries to PATH in your .bashrc or .zshrc
$ echo 'export PATH="$HOME/Library/xPacks/@xpack-dev-tools/arm-none-eabi-gcc/10.3.1-2.3.1/.content/bin:$PATH"' >> ~/.bashrc
$ source ~/.bashrc

# Verify we have 'arm-none-eabi-gcc' on PATH
$ arm-none-eabi-gcc --version
arm-none-eabi-gcc (xPack GNU Arm Embedded GCC arm64) 10.3.1 20210824 (release)

# Verify 'arm-none-eabi-gcc' is a native arm64 binary
$ file `which arm-none-eabi-gcc`
~/Library/xPacks/@xpack-dev-tools/arm-none-eabi-gcc/10.3.1-2.3.1/.content/bin/arm-none-eabi-gcc:
Mach-O 64-bit executable arm64

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