nios2--glibc--bleeding-edge-2018.02-1 Toolchains are hosted here: http://toolchains.bootlin.com/ All the licenses can be found here: http://toolchains.bootlin.com/downloads/releases/licenses/ All the sources can be found here: http://toolchains.bootlin.com/downloads/releases/sources/ PACKAGE VERSION LICENSE buildroot 2018.05-git-00067-ga49cfdb GPL-2.0+ lzip 1.19 GPL-2.0+ gcc-final 7.3.0 unknown bison 3.0.4 GPL-3.0+ m4 1.4.18 GPL-3.0+ gawk 4.1.4 GPL-3.0+ gcc-initial 7.3.0 unknown binutils 2.29.1 GPL-3.0+, libiberty LGPL-2.1+ gmp 6.1.2 LGPL-3.0+ or GPL-2.0+ mpc 1.0.3 LGPL-3.0+ mpfr 3.1.6 LGPL-3.0+ patchelf 0.9 GPL-3.0+ glibc glibc-2.27 GPL-2.0+ (programs), LGPL-2.1+, BSD-3-Clause, MIT (library) linux-headers 4.9.80 GPL-2.0 dash 0.5.9.1 BSD-3-Clause, GPL-2.0+ (mksignames.c) For those who would like to reproduce the toolchain, you can just follow these steps: git clone https://github.com/free-electrons/buildroot-toolchains.git buildroot cd buildroot git checkout a49cfdb69c61efb09520de655532034d527955ce curl http://toolchains.bootlin.com/downloads/releases/toolchains/nios2/build_fragments/nios2--glibc--bleeding-edge-2018.02-1.defconfig > .config make olddefconfig make This toolchain has been built, but the infrastructure does not contains enough informations about testing it. This doesn't mean that this toolchain doesn't work, just that it hasn't been fully tested. FLAG: CAN-NOT-TEST