Barebones [ i686-elf / ARMv7-eabi / MIPS ] cross-compiler & toolchain

This repo provides a stand-alone barebones gcc cross-compiler and toolchain for the following target architectures:

• i686 (32-bit ELF),
• ARMv7 (eabi),
• MIPS

There are two platform flavors, 32- and 64-bit depending on your host linux environment. The correct one is automatically chosen when the setenv.sh script is run.

Provided versions

Package	Version
binutils	2.27
gcc	6.2.0
gmp	6.1.1
isl	0.17
libiconv	1.14
mpc	1.0.3
mpfr	3.1.4

Setup details

Git clone this repository, then run the setenv.sh script to configure your PATH:

$ git clone https://github.com/rm-hull/barebones-toolchain.git
$ cd barebones-toolchain
$ . ./setenv.sh

Check that it worked:

$ i686-elf-gcc --version
i686-elf-gcc (GCC) 6.2.0
Copyright (C) 2016 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

$ arm-none-eabi-gcc --version
arm-none-eabi-gcc (GCC) 6.2.0
Copyright (C) 2016 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

$ mips-gcc --version
mips-gcc (GCC) 6.2.0
Copyright (C) 2016 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

Prior versions

All built versions are tagged in git, and follow the gcc version number:

$ git tags
4.9.1
4.9.2
6.2.0

If you want to use an older version, checkout with that specific tag:

$ git checkout 4.9.2

TODO

• Build 64-bit platform tools for ARMv7 target
• Build 32- & 64-bit platform tools for MIPS target

Acknowledgements

Built from instructions here: http://wiki.osdev.org/GCC_Cross-Compiler.

ARM build was exactly the same except: export TARGET=arm-none-eabi. Likewise MIPS build was exactly the same except: export TARGET=mips.