You'll need at least a 32GB card or larger device to build on. Also run:
$ sudo apt-get autoclean
after the updates described below.
- Raspbian jessie
Add staging to jessie repos in sources.list, I also added Linaro overlay and crosstools sources but that shouldn't matter. Edit sources.list and add this:
deb http://mirrordirector.raspbian.org/raspbian/ jessie-staging main contrib non-free rpi deb-src http://archive.raspbian.org/raspbian/ jessie-staging main contrib non-free rpi
- Ubuntu wily or higher
Leave sources.list as-is, continue.
Now run apt-get update, apt-get upgrade, and apt-get dist-upgrade. Reboot and install the build preqrequisites:
$ sudo apt-get install python-software-properties build-essential realpath libxml2-utils python-tempita python2.7-dev $ sudo apt-get install apt-src scons p7zip-full gawk gzip perl autoconf m4 automake libtool libncurses5-dev gettext gperf dejagnu expect tcl autogen guile-1.6 flex flip bison tofrodos texinfo g++ gcc libgmp3-dev libmpfr-dev debhelper texlive texlive-extra-utils $ sudo apt-get install sed wget coreutils unzip texi2html texinfo docbook-utils gawk python-pysqlite2 diffstat help2man make gcc build-essential g++ desktop-file-utils chrpath libxml2-utils xmlto apache2-utils info2man libebook-tools-perl libpod-2-docbook-perl
Note that many of these are probably already installed, but we need to pick up some rather obscure build deps for this configuration.
Use the modified build scripts and --skip args from the upstream tarball as shown below.
Rpi2/3 (Raspbian) works, but is slow and will crater with more than one job (even using a swapfile).
A Samsung (snow) chromebook running chrubuntu also works, and should take -j2. Note this should work without any swap, as wily has the buggy version of swapon:
Download the source tarball for the GNU ARM toolchain and unpack it:
$ wget https://launchpad.net/gcc-arm-embedded/5.0/5-2016-q3-update/+download/gcc-arm-none-eabi-5_4-2016q3-20160926-src.tar.bz2 $ tar xpf gcc-arm-none-eabi-5_4-2016q3-20160926-src.tar.bz2
Warning
If building on rpi or other limited platform, edit build_common.sh before you start - comment out JOBS=2 and uncomment JOBS=1 near the bottom of the file (see comments).
Now copy the *.sh files from this repo to the above unpacked source directory:
$ cd gnu-arm-toolchain/ $ cp ``*.sh`` ../gcc-arm-none-eabi-5_4-2016q3-20160926/ $ cd ../gcc-arm-none-eabi-5_4-2016q3-20160926/ $ time ./build-prerequisites.sh --skip_steps=mingw3 real 8m37.118s user 6m55.460s sys 1m8.600s $ time ./build-toolchain.sh --skip_steps=manual,mingw32 real 447m9.451s user 508m12.645s sys 103m57.105s yay!
YMMV, it will take "forever" but should work on anything with at least 1GB of RAM and 32GB of rootfs/storage. Stick with JOBS=1 on anything with less than 2GB RAM, which should allow -j2 or even 3.