nios2--glibc--stable-2020.02-1 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 2020.02-00008-gf916d78 GPL-2.0+ gcc-final 8.4.0 unknown bison 3.4.2 GPL-3.0+ m4 1.4.18 GPL-3.0+ gawk 5.0.1 GPL-3.0+ gcc-initial 8.4.0 unknown binutils 2.32 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 2.30-20-g50f20fe506abb8853641006a7b90a81af21d7b91 GPL-2.0+ (programs), LGPL-2.1+, BSD-3-Clause, MIT (library) linux-headers 4.4.215 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 curl http://toolchains.bootlin.com/downloads/releases/toolchains/nios2/build_fragments/nios2--glibc--stable-2020.02-1.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