Attempt to cross-compile for arm64 Linux

[SiarheiFedartsou]

Issue

closes #6405

Tasklist

• CHANGELOG.md entry (How to write a changelog entry)
• update relevant Wiki pages
• add tests (see testing documentation)
• review
• adjust for comments
• cherry pick to release branch

Requirements / Relations

Link any requirements here. Other pull requests this PR is based on?

[mjjbell]

This appears to have generated a public package: https://github.com/Project-OSRM/osrm-backend/pkgs/container/osrm-backend%2Frun-on-arch-project-osrm-osrm-backend-osrm-backend-ci-aarch64-ubuntu20-04

Was that the intention? The package containers are already providing ARM images.

Usually it's safer to test these CI changes in a personal fork until they're ready.

[SiarheiFedartsou]

This appears to have generated a public package: https://github.com/Project-OSRM/osrm-backend/pkgs/container/osrm-backend%2Frun-on-arch-project-osrm-osrm-backend-osrm-backend-ci-aarch64-ubuntu20-04

Was that the intention? The package containers are already providing ARM images.

Usually it's safer to test these CI changes in a personal fork until they're ready.

Oops, it likely was generated by https://github.com/uraimo/run-on-arch-action I was trying here. Will you be able to remove it please? I don’t have permissions for that it seems.
It was successful attempt btw, but took >3h to compile OSRM from scratch(it is QEMU emulation), i.e. probably we shouldn’t go this way.

[mjjbell]

Oops, it likely was generated by https://github.com/uraimo/run-on-arch-action I was trying here. Will you be able to remove it please? I don’t have permissions for that it seems.

@DennisOSRM would you mind deleting this package? https://github.com/Project-OSRM/osrm-backend/pkgs/container/osrm-backend%2Frun-on-arch-project-osrm-osrm-backend-osrm-backend-ci-aarch64-ubuntu20-04

It was successful attempt btw, but took >3h to compile OSRM from scratch(it is QEMU emulation), i.e. probably we shouldn’t go this way.

Yes, the current container building action is using QEMU and is also very slow. Even though it only runs on releases, finding a faster alternative would be worthwhile IMO.

[SiarheiFedartsou]

Even though it only runs on releases, finding a faster alternative would be worthwhile IMO.

AFAIK when it comes to Docker images the only alternative is to build on ARM machine.

[DennisOSRM]

@DennisOSRM would you mind deleting this package? https://github.com/Project-OSRM/osrm-backend/pkgs/container/osrm-backend%2Frun-on-arch-project-osrm-osrm-backend-osrm-backend-ci-aarch64-ubuntu20-04

Will be looking into it later tonight.

[DennisOSRM]

Even though it only runs on releases, finding a faster alternative would be worthwhile IMO.

AFAIK when it comes to Docker images the only alternative is to build on ARM machine.

There's an ARM server with an actions runner already installed that I could provide.

[SiarheiFedartsou]

Even though it only runs on releases, finding a faster alternative would be worthwhile IMO.

AFAIK when it comes to Docker images the only alternative is to build on ARM machine.

There's an ARM server with an actions runner already installed that I could provide.

After playing for a couple of hours with QEMU and cross compilation I can say that(it is mainly about node-osrm, not Docker image):

1. QEMU works, but it is super slow
2. Cross compilation it seems possible to configure, but I faced a couple of problems(in particular with TBB) which I am not sure how to solve and how much time it would take to finish with it.

So if it won’t bother you a lot it would be great to have access to this ARM server here(initially I thought that cross compilation will be simpler to configure). Thanks!

[DennisOSRM]

@DennisOSRM would you mind deleting this package? https://github.com/Project-OSRM/osrm-backend/pkgs/container/osrm-backend%2Frun-on-arch-project-osrm-osrm-backend-osrm-backend-ci-aarch64-ubuntu20-04

Will be looking into it later tonight.

It's gone.