Dear Wookey, > After a fair amount of dicking about I have managed to build a > cross-toolchain for arm64/aarch64 which installs on Ubuntu Quantal. It > even builds packages, although it has at least one notable limitation, > and I have no idea if it produces working code yet :-) > > The main limitation is that the default library search paths have come > out as the old dpkg-cross ones, not the new multiarch ones. If someone > can tell me where to fix that it would be very helpful and I'll try > and put an updated one in the repo. > > In the meantime you can work round it effectively using > /etc/dpkg/buildflags. (see wiki page below for details) > > The cross-toolchain only supports C, C++ and fortran with no extras > like libssp, libmudflap etc, because there is no architecture support > for them yet. > > I started a port page to keep track of things here: > http://wiki.debian.org/Arm64Port > > And if you want to set up a quantal chroot and see if you can build > things, details are here: > https://wiki.linaro.org/Platform/DevPlatform/CrossCompile/arm64bootstrap > > The bottom line is that you can debootstrap (or sbuild-createchroot) a > quantal chroot, add the bootstrap repo and do 'apt-get install > crossbuild-essential-arm64' and get a working cross-build environment. > > The repo is here: > http://people.debian.org/~wookey/bootstrap.html > > That should be useable for both dpkg-cross style bulding or > multiarch-style bulding. > > The repo also contains updated dpkg-cross, multiarch python, multiarch > perl, updated dpkg with buildprofile/staging support, sbuild (although > in fact I think stock sbuild should work OK), and dose-builddebcheck > which can tell you what things are currently cross-buildable from > available binaries and sources. Most of that is pretty new and not > very well tested but 'it works for me'. > > More arm64 packages will be along soon (dose3 currently indicates 40 > more buildabale packages), but there is plenty still to fix for a full > debootstrap-able arm64 package set. > > Anyone keen to help with bootstrapping the port is very welcome. There > will be a session about it at UDS next week, and a more general one on > distro bootrapping at the Armv8 minisummit a the co-located linaro > connect. And I'll be giving a talk about this stuff at Linxconf-Europe > in Barcelona the week after. > > I think that's all for now. Enjoy, and tell me what breaks :-)
I need to catch up with you in there ;-) What do you use for a bootloader on these armv8 devices? > Wookey Best regards, Marek Vasut _______________________________________________ linaro-dev mailing list linaro-dev@lists.linaro.org http://lists.linaro.org/mailman/listinfo/linaro-dev
