nios2--glibc--bleeding-edge-2020.02-2 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 2020.02-00011-g7ea8a52 GPL-2.0+ gcc-final 9.3.0 unknown bison 3.4.2 GPL-3.0+ m4 1.4.18 GPL-3.0+ gawk 5.0.1 GPL-3.0+ gcc-initial 9.3.0 unknown binutils 2.33.1 GPL-3.0+, libiberty LGPL-2.1+ gmp 6.1.2 LGPL-3.0+ or GPL-2.0+ mpc 1.1.0 LGPL-3.0+ mpfr 4.0.2 LGPL-3.0+ python3 3.8.2 Python-2.0, others autoconf 2.69 GPL-3.0+ with exceptions libtool 2.4.6 GPL-2.0+ (libtool), LGPL-2.1+ (libltdl) automake 1.15.1 GPL-2.0+ expat 2.2.9 MIT pkgconf 1.6.1 pkgconf license libffi 3.3 MIT libzlib 1.2.11 Zlib patchelf 0.9 GPL-3.0+ glibc 2.30-56-gc56022269f45fc7cc01806bce2cb5ed596718597 GPL-2.0+ (programs), LGPL-2.1+, BSD-3-Clause, MIT (library) linux-headers 4.19.107 GPL-2.0 For those who would like to reproduce the toolchain, you can just follow these steps: git clone https://github.com/bootlin/buildroot-toolchains.git buildroot cd buildroot git checkout toolchains.bootlin.com-2020.02-2 curl http://toolchains.bootlin.com/downloads/releases/toolchains/nios2/build_fragments/nios2--glibc--bleeding-edge-2020.02-2.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