Philippe Mathieu-Daudé <[email protected]> writes: > On 04/19/2018 02:58 PM, Peter Maydell wrote: >> On 19 April 2018 at 18:49, Alex Bennée <[email protected]> wrote: >>> Philippe Mathieu-Daudé <[email protected]> writes: >>>> On 04/19/2018 10:58 AM, Alex Bennée wrote: >>>>> This doesn't add any additional tests but enables building the >>>>> multiarch tests for MIPS using docker cross compilers. We don't have a >>>>> cross compiler for mips64 big endian though. >>>> >>>> Oh we have one, using CFLAGS+=-EB >>>> >>>> we don't have cross libraries although. >>> >>> Yeah I thought the same with the ARM compilers (-mbig-endian) but it's >>> the libraries that let us down. If, as you say, newlib gets this right I >>> suspect we should use that to build the compilers not supported out of >>> the box by Debian. >> >> I don't think we really want to get into the business of >> building our own cross compilers if we can avoid it...it's harder >> than it looks and we would be essentially reinventing the wheel. > > I totally agree. > > I'v been looking at existing maintained images we can use to > cross-build, so we only have to pull (download) and image and use it, > not wasting cpu time building it. > > However some images might be huge, full of things we don't need. But I > prefer that rather than having to maintain cross toolchains. > > An example I like to use is the coreboot-sdk, designed to build > i386/amd64 binaries, it fulfills our needs. But takes 2GB... > > $ docker pull coreboot/coreboot-sdk:1.47 > 1.47: Pulling from coreboot/coreboot-sdk > 3d6aedfc3e47: Downloading [> ] 538.2kB/1.201GB > d23c9a72f1e5: Waiting
Found the dockerfile: https://github.com/MattDevo/coreboot/blob/master/util/docker/coreboot-sdk/Dockerfile > > Another candidate is crossbuild, ~1GB > $ docker pull multiarch/crossbuild This looks like it is just a multiarch debian setup much like our own. -- Alex Bennée
