AVR32 GNU Toolchain is a set of standalone command line programs used to create applications for AVR32 microcontrollers. The applications run either as embedded applications or on top of an embedded operating system, e.g. Linux®.
The tools may be used in a chain, so that the output of each tool becomes the input for the next. Several of the tools are based on tools from GNU (www.gnu.org), and some are developed by Atmel.