cmd/compile: implement powerpc 32-bit backend (ppc32)

[rasky]

Tracking bug for missing PowerPC 32-bit backend. People interested in this can put a 👍 reaction here so that we can track interest.

[villadalmine]

any update ¿?

[ianlancetaylor]

Updates will be posted here. There are no updates. I only see ten thumbs-up which is not really very many, though of course if someone volunteers to do the work and maintain a builder we will accept the port.

[villadalmine]

I want to help to work with g4/g5

[awilfox]

32-bit PowerPC would be the 4xx, 6xx, 7xx (G3, Broadway/Wii, etc), and 74xx (G4), in addition to a few others.

The G5 is a POWER4+-based 64-bit PowerPC, which was supported until Go 1.9: see #19074 for more.

We at Adélie have a ppc32 builder that could potentially be used for CI if this went anywhere.

[villadalmine]

any update about go with 32 bit for g4/g3 ?

[DarkDirectX]

I'm interested in create backend for ppc32, but currently I only have POWER8. I need to try build and run ppc32 binaries on my machine.

[awilfox]

Linux installs on 64-bit PowerPC can do 32-bit chroots. You can set up a distro that supports ppc32, like Adélie or Debian, into a chroot and work with it there.

I don't know if you can cross-endian chroot; I think you will need to be using big-endian PowerPC on the host.

[villadalmine]

I want to work with go in openbsd with powerpc g3/g4.

[travislikestocode]

I'm interested in ppc32 in order to use prometheus node_exporter on a Dell/Cumulus switch

[Vartkat]

I'm interested in order to build restic backup on a MacMini PPC 7450.

[awilfox]

I'll make a note that if you're using Linux and glibc, gcc-go works fine on PPC32. It does not yet work properly on musl, but I'm investigating that. This way we have a platform to bootstrap golang with, if there is ever such a backend.

[ymartin59]

Interested by PPC32 here for "qoriq" Synology architectures