Hey Thomas, Thank you for your quick reply. I appreciate you sharing that information with me. I assume that once we have the 32-bit embedded.S and snapshot_blob.bin we should be good until we switch Chromum/CEF versions. Hopefully they fix this and we don't have to jump through these hoops in the future.
Patrick On Wed, Apr 29, 2020 at 5:27 AM Thomas Preston < thomas.pres...@codethink.co.uk> wrote: > Hi Patrick, > In order to build 32-bit Chromium in Buildroot, we had to isolate the > whole thing in a 32-bit container, then run: > > buildroot$ HOST_CFLAGS="-O2 -m32" linux32 make libcef > > The 32-bit container is i386 ubuntu:19.10 described by a Dockerfile very > similar to the Buildroot testing Dockerfile: > <https://git.buildroot.net/buildroot/tree/support/docker/Dockerfile> > > --- support/docker/Dockerfile 2020-04-29 10:13:47.654241375 +0100 > +++ package/libcef/v8_snapshot/arm/Dockerfile 2020-04-29 10:15: > 30.339897520 +0100 > @@ -1,41 +1,33 @@ > -# This Dockerfile generates the docker image that gets used by Gitlab CI > -# To build it (YYYYMMDD.HHMM is the current date and time in UTC): > -# sudo docker build -t buildroot/base:YYYYMMDD.HHMM support/docker > -# sudo docker push buildroot/base:YYYYMMDD.HHMM > - > -# We use a specific tag for the base image *and* the corresponding date > -# for the repository., so do not forget to update the apt-sources.list > -# file that is shipped next to this Dockerfile. > -FROM debian:stretch-20171210 > - > -LABEL maintainer="Buildroot mailing list <buildr...@buildroot.org>" \ > - vendor="Buildroot" \ > -description="Container with everything needed to run Buildroot" > +# 32-bit Dockerfile which mimics support/docker/Dockerfile > +FROM i386/ubuntu:19.10 > > # Setup environment > ENV DEBIAN_FRONTEND noninteractive > > # This repository can be a bit slow at times. Don't panic... > -COPY apt-sources.list /etc/apt/sources.list > +#COPY apt-sources.list /etc/apt/sources.list > > # The container has no package lists, so need to update first > RUN dpkg --add-architecture i386 && \ > apt-get update -y > RUN apt-get install -y --no-install-recommends \ > + automake \ > bc \ > build-essential \ > bzr \ > ca-certificates \ > + clang \ > cmake \ > cpio \ > cvs \ > file \ > - g++-multilib \ > + g++ \ > git \ > - libc6:i386 \ > + libc6 \ > libncurses5-dev \ > locales \ > mercurial \ > + ninja-build \ > python-flake8 \ > python-nose2 \ > python-pexpect \ > @@ -47,6 +39,7 @@ > rsync \ > subversion \ > unzip \ > + vim \ > wget \ > && \ > apt-get -y autoremove && \ > > Without using Buildroot, you could probably build Chromium itself with > something similar. You'll need a 32-bit version of gn too. > > Maybe it's possible to build Chromium in a 32-bit VM too. > > I hope that helps! > Thomas > > On Tuesday, 28 April 2020 20:38:24 UTC+1, Patrick De Bella wrote: >> >> Hi Thomas, >> >> Can you please provide some details on how you created the 32-bit >> versions of embedded.S and snapshot_blob.bin? I'm new to Chromium, GN and >> Ninja and having some issues with this. >> >> Patrick >> >> On Wednesday, January 29, 2020 at 4:44:51 AM UTC-5, Thomas Preston wrote: >>> >>> On Wednesday, 29 January 2020 09:37:48 UTC, Thomas Preston wrote: >>> >>>> We ended up solving this by letting the run_mksnapshot_default target >>>> finish, then overwriting snapshot_blob.bin and embedded.S with the >>>> pre-built 32-bit versions. The build actually errors when trying to build >>>> another target, which uses embedded.S. >>>> >>> >>> This is the error when we don't replace the snapshot_blob.bin and >>> embedded.S with 32-bit versions: >>> >>> .quad V8FooBar >>> ^ unsupported relocation on symbol >>> >>> >>> >>> -- > -- > v8-users mailing list > v8-users@googlegroups.com > http://groups.google.com/group/v8-users > --- > You received this message because you are subscribed to the Google Groups > "v8-users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to v8-users+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/v8-users/9c4ef4e5-a36e-4864-ab87-15153ad30680%40googlegroups.com > <https://groups.google.com/d/msgid/v8-users/9c4ef4e5-a36e-4864-ab87-15153ad30680%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- -- v8-users mailing list v8-users@googlegroups.com http://groups.google.com/group/v8-users --- You received this message because you are subscribed to the Google Groups "v8-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to v8-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/v8-users/CALGbyX0k9nDYa%2BZWOdHarHLJkLbJJCtgxFmMcZyNdO0H5-b1uA%40mail.gmail.com.
