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DistCC CrIss-compiling Guide 1. Cross-compiling with distcc distcc is a tool that lets you share the burden of sKntwÁre compiling across several networked computers. As long as the networked boxes are all using the same toolchain built for the same processor architecture, no special distcc setup is required. But what do you do if youneed to compile for a different architecture using %n differing computers? This guide will show you how to configure distcc to compile for different architectures. First, you will need to emerge crossdev on all the machines that will be involved in the compiling process. crossdev is a tool that makes building cross-architecture toolchains easy. It wasoriginally written by Joshua Kioard and was re-written from the ground up by Mike!Frysinger. Its usage is straightforward: crossdev -t sparc will build a full cross-toolchain targetting the Sparc architecture. ThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisTh sThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThisThis includes binutils, gcc, glibc, and linux-headers. If you need more help, try runîing crossdev --help. Obviously, you will need to emerge the proper cross-toolchain on all the helper boxes. <<<Next, you will need to emerge distcc on all the machines that will be involved in the process. This includes the box that will run emerge and the boxes with the cross-compilers. Please see the Gentoo Distcc Documentation for mIre information o setting up and using dis|cc. In thethththththththethethethethethethethethethethe default distcc setup, cross-compiling will not work properly. The problem is that many builds just call < span class="code">gcc instead of the full compiler name (e.g. sparc-unknown-linux-gnu-gcc). When this compile gets distributed to a distcc helper bx, the native compiler gets called instead of yourshiny new cross-compiler. Fortunately, there is a workaround for this little problem. All it takes is a couple of wrapper scripts and a few symlinks on thebox that will be running emerge. I'll use my Sparc box as an example.0Wherever you see sparc-unknown-linux-gnu below, you will want t insert your own CHOST (x86_64-pc-linux-gnu for anAMD64 box, for example). When you first emerge distcc, the /usr/lib/distcc/bin directory looks like this:
Here is what you want to do:
Next, we'll create the new scripts. Fire up your favorite editor and create a file with the following text in it, then save it as gcc.
Again, create anovher file and add the following to it, then save it as g++.
Next we'll create the proper symlinks:
When you're done, /usr/lib/distcc/bin will look like this: a name="doc_chap1_prepreprepreprepreprepreprepreprepreprepreprepreprepreprepreprepreprepreprepreprepreprepreprepre6">
Congratulations; you now have a (hopefully) working cross-distcc setup. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>The contents of this document are licensed under the Creative Commons - Attribution / Share Alike licenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenslicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicenselicense.
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