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https://issues.apache.org/jira/browse/IMPALA-10263?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Joe McDonnell closed IMPALA-10263.
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Resolution: Won't Fix
Emulation is too slow and we now have ARM builds of the native-toolchain.
> Native toolchain support for cross compiling to produce ARM binaries
> --------------------------------------------------------------------
>
> Key: IMPALA-10263
> URL: https://issues.apache.org/jira/browse/IMPALA-10263
> Project: IMPALA
> Issue Type: Improvement
> Components: Infrastructure
> Affects Versions: Impala 4.0.0
> Reporter: Joe McDonnell
> Priority: Major
> Labels: arm
>
> With support for ARM added to upstream Impala, it would be useful to be able
> to build the ARM native toolchain from an x86 machine. This would allow it to
> be built and uploaded to s3 using the same infrastructure that currently
> builds the x86 binaries. Having the ARM binaries in s3 opens up possibilities
> to incorporate an ARM build into GVO.
> QEMU has the ability to emulate ARM on an x86 machine, and it is surprisingly
> simple to get an ARM docker container running on x86. This article provides
> some depth:
> [https://ownyourbits.com/2018/06/27/running-and-building-arm-docker-containers-in-x86/]
> The basic story is that the steps are:
> # Install qemu-user/qemu-user-static (which installs appropriate hooks in
> the kernel)
> # Make qemu-aarch64-static available in the context for building the docker
> container
> # In the Dockerfile, copy qemu-aarch64-static into /usr/bin
> For example, here is the start of the ubuntu1804 Dockerfile:
> {noformat}
> FROM arm64v8/ubuntu:18.04
> COPY qemu-aarch64-static /usr/bin/qemu-aarch64-static
> # The rest of the dockerfile{noformat}
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