Re: [Buildroot] [PATCH 1/1] package/go/go-src: stop forcing binutils-gold dependency on aarch64

[Fiona Klute via buildroot <buildroot@buildroot.org>]

Hi Arnout!

Am 04.02.25 um 12:27 schrieb Arnout Vandecappelle:
[... snip ...]
>> One question though: Is there an existing way to check the Binutils
>> version of an external toolchain? For people with Binutils < 2.41 with
>
>   The commit message of Yann's patch says "This is supposedly fixed in
> binutils 2.36". 2.36 is plenty old that we can afford to unconditionally
> use ld.bfd.
>
>   However, if it's only _really_ fixed in 2.41: that one only became the
> default for Buildroot in 2024.05. So I don't really think we can count
> on it if it's really only fixed in 2.41.
>
>> ld.gold forcing BFD might actually break things, so ideally I'd want to
>> make the flag conditional on Binutils >= 2.41 (all Buildroot-built
>> toolchains meet that anyway). Or would it be acceptable to simply say
>> that people with old external toolchains are on their own?
>
>   Using ld.gold only if it is available sounds like a good approach, but
> I don't know how easy it is to discover whether or not it is
> available... Maybe this works:
>
> $(wildcard $(shell $(TARGET_CC) -print-prog-name=ld.gold))
>
>
>   BTW regarding Yann's patch: I would give the use-ld flag
> unconditionally, not on a per-package basis. That way, if there really
> is a problem with bfd, we have a higher chance of running in to it and
> therefore fixing it.
I'm happy to do that instead of in package/containerd if that's consensus.

Which makes me wonder: Would it make sense to provide a *global* config
for EXTLDFLAGS (BR2_GO_EXTLDFLAGS or something), which would default to
"-fuse-ld=bfd" (plus maybe "-Wl,--no-pie" with musl)? That way people
who e.g. use an external toolchain with old Binutils and Gold linker
available could adjust it.

Best regards,
Fiona

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