all: openbsd/ppc64 port

[4a6f656c]

This issue is intended to be both a proposal and tracking issue for an openbsd/ppc64 port of Go.

This Go port already exists and is fully functional.

We have a machine available that can run a builder for this port, along with a volunteer who is willing to run it.

Per #55998 @qbit is willing to be an additional maintainer of all OpenBSD Go ports, including this one.

/cc @qbit @golang/ppc64

[n2vi]

I confirm that I have a TalosII server allocated for this and will be following the process for adding it to the Builder Dashboard.

[laboger]

Power8 is the minimum level supported by the Go ppc64 assembler, for your awareness.

[laboger]

If you have the port working, and this is ppc64 (big endian), does it use ELF v1 or v2?

[n2vi]

This is all Joel's work, but I'll try to answer to save him time:
Yes, the port is for POWER9 big-endian and (as far as I know) follows the 64-Bit ELF V2 ABI Specification.

[ianlancetaylor]

CC @golang/runtime @golang/release

[gopherbot]

Change https://go.dev/cl/439978 mentions this issue: unix: add support for openbsd/ppc64

[gopherbot]

Change https://go.dev/cl/439977 mentions this issue: cpu: add support for ppc64 on platforms other than aix and linux

[rsc]

This proposal has been added to the active column of the proposals project
and will now be reviewed at the weekly proposal review meetings.
— rsc for the proposal review group