linux-kernel - Re: [PATCH v4 00/24] vdso: Reject absolute relocations during build

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Message-ID: <20250813101305-04911850-2375-4be5-9a06-ced21de3ca22@linutronix.de>
Date: Wed, 13 Aug 2025 10:16:02 +0200
From: Thomas Weißschuh <thomas.weissschuh@...utronix.de>
To: Miguel Ojeda <miguel.ojeda.sandonis@...il.com>
Cc: Paul Walmsley <paul.walmsley@...ive.com>, 
	Palmer Dabbelt <palmer@...belt.com>, Albert Ou <aou@...s.berkeley.edu>, 
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	Arnaldo Carvalho de Melo <acme@...hat.com>, Alexandre Ghiti <alexghiti@...osinc.com>
Subject: Re: [PATCH v4 00/24] vdso: Reject absolute relocations during build

On Tue, Aug 12, 2025 at 01:07:34PM +0200, Miguel Ojeda wrote:
> On Tue, Aug 12, 2025 at 7:44 AM Thomas Weißschuh
> <thomas.weissschuh@...utronix.de> wrote:
> >
> > Kbuild and Rust folks: This contains custom definitions of hostprog
> > bindgen and rust library commands.
> > These are currently only defined inside the subsystem directory.
> > Let me know if they should go into scripts/Makefile.host.
> 
> Glad to see more Rust host progs :)
> 
> Keeping them local may be a bit easier initially to land, I guess
> (e.g. no docs), and then we can generalize when needed later.

I'm happy to do the docs etc. I only wanted to avoid doing all that work,
only for it to stay a subsystem-local solution.

Also it would be nice to have a Kconfig symbol, RUSTC_CAN_LINK or similar,
which indicates that the rust compiler can build host programs.

> By the way, for consistency with elsewhere, probably we want
> `HOSTRUSTLIB` -> `HOSTRUSTC L`. Though I am thinking to remove the `L`
> anyway since eventually a lot of code will be "lib".

Ack.