[9fans] Some problems about golang on plan9/arm64

[9fans] Some problems about golang on plan9/arm64

[fish4terrisa]

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I know that currently golang doesn't support plan9/arm64, and maybe wont support it in the future.
And someone already made a port of golang to plan9/arm64 at here: https://github.com/psilva261/go-arm64.plan9
I already successfully built and installed it on 9front/arm64 on my rpi. (using a linux machine to get a bootstrap for go plan9/arm64, and then copy it to rpi, build the full golang toolchain there.)
I confirmed that this port of golang can compile some simple projects and the golang compiler correctly.
However I encountered a problem:
Some go projects may import the package 'golang.org/x/sys', , which caused the go compiler to fetch the upstream source code, and fails to compile due to the lack of plan9/arm64 in upstream.
Does anyone know any workarounds?
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Re: [9fans] Some problems about golang on plan9/arm64

[Danny Wilkins via 9fans]

On Thu, May 08, 2025 at 05:27:20PM +0000, fish4terrisa@fishinix.org wrote:
> Some go projects may import the package 'golang.org/x/sys', , which caused the go compiler to fetch the upstream source code, and fails to compile due to the lack of plan9/arm64 in upstream.
> Does anyone know any workarounds?
I believe what you're looking for is the "replace" directive in the
relevant go modules, which will let you satisfy the dependency with
a local copy which you've ported to arm64.


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Re: [9fans] Some problems about golang on plan9/arm64

[Skip Tavakkolian]

could you use go mod 'replace' to provide a local stub?

On Thu, May 8, 2025 at 10:41 AM <fish4terrisa@fishinix.org> wrote:
>
> I know that currently golang doesn't support plan9/arm64, and maybe wont support it in the future.
> And someone already made a port of golang to plan9/arm64 at here: https://github.com/psilva261/go-arm64.plan9
> I already successfully built and installed it on 9front/arm64 on my rpi. (using a linux machine to get a bootstrap for go plan9/arm64, and then copy it to rpi, build the full golang toolchain there.)
> I confirmed that this port of golang can compile some simple projects and the golang compiler correctly.
> However I encountered a problem:
> Some go projects may import the package 'golang.org/x/sys', , which caused the go compiler to fetch the upstream source code, and fails to compile due to the lack of plan9/arm64 in upstream.
> Does anyone know any workarounds?
> 9fans / 9fans / see discussions + participants + delivery options Permalink

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Re: [9fans] Some problems about golang on plan9/arm64

[fish4terrisa-MSDSM]

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ok thx.
Also I saw that nearly all code in x/sys is share with the go toolchain, and it seems that these packages are generated from the go toolchain source code. Does anyone know any clues about it? Or I need to manually edit the x/sys source code?
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Re: [9fans] Some problems about golang on plan9/arm64

[Ron Minnich]

I don't think you want to use go mod or replace directives any more,
that's been replaced (for me at any rate) with
go work

so, example, suppose I am working in my cpu directory
(github.com/u-root/cpu, and I want my cpu command to pull from a
locally changed u-root
My cpu directory is ~/cpu, and u-root is ~/u-root.
I would do this
cd ~/cpu
go work init
go work use ~/u-root

and now I'm using a local copy.

The nice part about this is it does not change any files that are
managed by git.
I've been very happy with go work

On Thu, May 8, 2025 at 11:32 AM fish4terrisa-MSDSM
<fish4terrisa@fishinix.org> wrote:
>
> ok thx.
> Also I saw that nearly all code in x/sys is share with the go toolchain, and it seems that these packages are generated from the go toolchain source code. Does anyone know any clues about it? Or I need to manually edit the x/sys source code?
> 9fans / 9fans / see discussions + participants + delivery options Permalink

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