On 11/01/2016 12:22 AM, Andrew Worsley wrote: > I tried using pbuilder (based off > https://jodal.no/2015/03/08/building-arm-debs-with-pbuilder/) but -> > qemu-arm-static has bugs (segmentation faults - possibly > https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=811087
You can use (in your pbuilderrc) PBUILDERSATISFYDEPENDSCMD="/usr/lib/pbuilder/pbuilder-satisfydepends-classic" to make pbuilder use a different (much slower, and in edge cases possibly problematic) dependency-resolution algorithm. In that case aptitude will never be invoked and builds in qemu-user chroots will mostly work - with possibly some exceptions. I've never tried a kernel build in such a setup though. Note that qemu-user chroots are _really_, _really_ slow. Builds can take anywhere from 3 to 20 times as long as on native hardware. (For other packages, in my experience building armhf in qemu-user chroots on amd64 is ~12 times slower. YMMV.) Note that if you are using qemu chroots, you're not actually cross-compiling, but you are emulating a hardware architecture and using a native compiler (on an emulated instruction set) to build the software. This has the advantage that you're much closer to what the build is going to be on real hardware, but performance is going to be awful and bugs in qemu-user are going to bite you. Alternatively, you can actually cross-compile stuff by employing a real cross compiler that runs natively on your hardware (hence faster) but generates code for the target hardware you're looking at. The build system of a package must support cross compiling explicitly for this to work and be useful, I've never tried the kernel packages, so I don't know if that will work. You can get a pointer on how to actually cross-compile Debian packages under: https://wiki.debian.org/CrossCompiling > But I see that buildd ( > https://buildd.debian.org/status/logs.php?pkg=linux&arch=armel ) > apparently works some how. Well, the official Debian buildds for armhf/armel actually run on ARM hardware, so that's why the "work". ;-) Regards, Christian
