Adding a compiler option into gcc

I am looking for the cross-compilation toolchain for the Xilinx Microblaze processor (i.e. mb-gcc, mb-gdb, binutils, ...) for the Cygwin package environment (installed on Windows). The source files of the Xilinx-based compiler are available but need some adding. Provider will start from existing code sources of Xilinx tools. These source are compiling yet. Although all GCC standard options are almost supported, the endianness selection option is not. The work consists in adding the support of endianness target code selection (big or little endian) into cross-compilation tools. The option to add should be based on GCC standard endianness option selection (-mlittle-endian et -mbig-endian). The compiler currently only support the big endian target. The Microblaze processor is a big endian processor but the corresponding Win32 instruction set simulator (ISS) has to be in little endian mode. So the endianness option must be available. Deliverable shall include the configuration and building scripts to be able to reproduce the building steps in house, and the executable tool package. The package is based on gcc 3.4.1. You can download the source package at [login to view URL] (you need to register twice, but it's free).