Re: [PATCH v1] tools build: Fix rust cross compilation

[Dmitry Dolgov]

> On Thu, Feb 12, 2026 at 08:13:25PM +0100, Miguel Ojeda wrote:
> On Thu, Feb 12, 2026 at 7:58 PM Dmitrii Dolgov <9erthalion6@xxxxxxxxx> wrote:
> >
> > Note that CROSS_COMPILE might be different from what rust compiler
> > expects, since it may omit the target vendor value, e.g.
> > "aarch64-linux-gnu" instead of "aarch64-unknown-linux-gnu". Thus provide
> > an explicit RUST_TARGET_ARCH, and if not specified, try to match
> > the CROSS_COMPILE value.
> 
> I would suggest explicitly doing the mapping automatically, rather
> than guessing or requesting users to provide one more variable, like
> we do for the non-tools side.
> 
> Perhaps using a "table" like we do for LLVM and `bindgen` -- see for
> instance `scripts/Makefile.clang`.

Thanks, will try this out.