Re: [PATCH 1/2] tests/docker: promote debian-riscv64-cross to a full image

["Alex Bennée" <alex.bennee@linaro.org>]

Philippe Mathieu-Daudé <f4bug@amsat.org> writes:

> On 9/14/21 8:58 PM, Richard Henderson wrote:
>> From: Alex Bennée <alex.bennee@linaro.org>
>> 
>> To be able to cross build QEMU itself we need to include a few more
>> libraries. These are only available in Debian's unstable ports repo
>> for now so we need to base the riscv64 image on sid with the the
>> minimal libs needed to build QEMU (glib/pixman).
>> 
>> The result works but is not as clean as using build-dep to bring in
>> more dependencies. However sid is by definition a shifting pile of
>> sand and by keeping the list of libs minimal we reduce the chance of
>> having an image we can't build. It's good enough for a basic cross
>> build testing of TCG.
>> 
<snip>
>> diff --git a/tests/docker/dockerfiles/debian-riscv64-cross.docker b/tests/docker/dockerfiles/debian-riscv64-cross.docker
>> index 2bbff19772..594d97982c 100644
>> --- a/tests/docker/dockerfiles/debian-riscv64-cross.docker
>> +++ b/tests/docker/dockerfiles/debian-riscv64-cross.docker
>> @@ -1,12 +1,48 @@
>>  #
>> -# Docker cross-compiler target
>> +# Docker cross-compiler target for riscv64
>>  #
>> -# This docker target builds on the debian Buster base image.
>> +# Currently the only distro that gets close to cross compiling riscv64
>> +# images is Debian Sid (with unofficial ports). As this is a moving
>> +# target we keep the library list minimal and are aiming to migrate
>> +# from this hack as soon as we are able.
>>  #
>> -FROM qemu/debian10
>> +FROM docker.io/library/debian:sid-slim
>> +
>> +# Add ports
>> +RUN apt update && \
>> +    DEBIAN_FRONTEND=noninteractive apt install -yy eatmydata && \
>> +    DEBIAN_FRONTEND=noninteractive eatmydata apt update -yy && \
>> +    DEBIAN_FRONTEND=noninteractive eatmydata apt upgrade -yy
>> +
>> +# Install common build utilities
>> +RUN DEBIAN_FRONTEND=noninteractive eatmydata apt install -yy \
>> +    bc \
>> +    build-essential \
>> +    ca-certificates \
>> +    debian-ports-archive-keyring \
>> +    dpkg-dev \
>> +    gettext \
>> +    git \
>> +    ninja-build \
>> +    pkg-config \
>> +    python3
>
> Alex, why not using a debian-sid intermediate image?

Well we removed the original debian-sid image a while ago having excised
images that used it. Basing things on sid does cause problems given it's
such a moving feast. Rather than encouraging others to build sid based
images we decided it made more sense to make this a pure standalone
image which we can migrate away from at the first opportunity.

-- 
Alex Bennée