aarch64--musl--bleeding-edge-2018.11-1 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 2018.11-rc2-00003-ga0787e9 GPL-2.0+ gcc-final 8.2.0 unknown binutils 2.31.1 GPL-3.0+, libiberty LGPL-2.1+ lzip 1.20 GPL-2.0+ gmp 6.1.2 LGPL-3.0+ or GPL-2.0+ m4 1.4.18 GPL-3.0+ mpc 1.0.3 LGPL-3.0+ mpfr 3.1.6 LGPL-3.0+ gcc-initial 8.2.0 unknown gdb 8.1.1 GPL-2.0+, LGPL-2.0+, GPL-3.0+, LGPL-3.0+ expat 2.2.6 MIT pkgconf 0.9.12 pkgconf license ncurses 6.1 MIT with advertising clause patchelf 0.9 GPL-3.0+ musl 1.1.20 MIT linux-headers 4.14.80 GPL-2.0 dash 0.5.10.2 BSD-3-Clause, GPL-2.0+ (mksignames.c) gdb 8.1.1 GPL-2.0+, LGPL-2.0+, GPL-3.0+, LGPL-3.0+ 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-bleeding-edge-2018.11-1 curl http://toolchains.bootlin.com/downloads/releases/toolchains/aarch64/build_fragments/aarch64--musl--bleeding-edge-2018.11-1.defconfig > .config make olddefconfig make This toolchain has been built, and the test system built with it has successfully booted. This doesn't mean that this toolchain will work in every cases, but it is at least capable of building a Linux kernel with a basic rootfs that boots. FLAG: TEST-OK