6. CPU architecture
The portability of the kernel and toolchains is amazing: change an option and most things magically work on completely different hardware.
To use arm instead of x86 for example:
./build-buildroot --arch arm ./run --arch arm
Debug:
./run --arch arm --gdb-wait # On another terminal. ./run-gdb --arch arm
We also have one letter shorthand names for the architectures and --arch option:
# aarch64 ./run -a A # arm ./run -a a # x86_64 ./run -a x
Known quirks of the supported architectures are documented in this section.