armv7m--uclibc--bleeding-edge-2018.07-3 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 2018.08-git-00807-g0184fa3 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+ elf2flt 6d80ab6c93409e796f85da404bde84b841231531 GPL-2.0+ libzlib 1.2.11 Zlib 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 patchelf 0.9 GPL-3.0+ uclibc 1.0.30 LGPL-2.1+ linux-headers 4.14.57 GPL-2.0 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 toolchains.bootlin.com-2018.07-3 curl http://toolchains.bootlin.com/downloads/releases/toolchains/armv7m/build_fragments/armv7m--uclibc--bleeding-edge-2018.07-3.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