Build your own ARM cross compiler toolchain

I’ve been using this script to generate ARM toolchains for baremetal development on a Linux host.

1. Verify or install the list of utilities noted at the head of the script, they’re needed before starting the build.
2. Create a folder ‘ARM_tools’ and place the script inside.
3. Change to the ARM_tools folder and execute ‘./cross.sh’.

All of the packages should download, configure, and compile.  The process will require about 1 Gb of free space on the your drive.  To generate an elf toolchain, edit the script and replace ‘arm-none-eabi’ with ‘arm-elf’.

Note: there is a problem with specifying –enable-multilib as a compiler option.  This is enabled by default already, so it’s best not to include it.  The script I’ve linked to has already taken care of the matter.

Links:

http://engine12.com/files/cross.sh

http://www.hermann-uwe.de/blog/building-an-arm-cross-toolchain-with-binutils-gcc-newlib-and-gdb-from-source

https://github.com/esden/summon-arm-toolchain