What AI says about Arm GNU Toolchain

The GNU Arm Embedded Toolchain is a free, open-source suite of development tools (GCC-based) for C, C++, and assembly targeting Arm Cortex-A, Cortex-M, and Cortex-R 32-bit processors. It is provided by Arm for embedded software development on Windows, Linux, and macOS. The download page offers the latest releases and older versions with installation guidance via readme files and Launchpad links.