Re: [PATCH v3] kbuild: host: use single executable for rustc -C linker

[Nicolas Schier <nsc@kernel.org>]

On Tue, Mar 17, 2026 at 02:10:27PM +0300, Mohamad Alsadhan wrote:
> On 26/03/12 02:50pm, Nicolas Schier wrote:
> > 
> > Why can't we just use this?
> > 
> >     echo 'exec $(HOSTRUSTC_LD) "$$@"' >> $@; \
> > 
> > 
> 
> I was being extra safe with quoting and escaping to make this as
> general as it can be. Just in case a more complex command with some 
> shell quoting is passed e.g.
>     `HOSTRUSTC_LD="env 'CCACHE_DIR=/tmp/my cache' ccache gcc"`

This does not work with the 'printf' variant (v4) either, as the space in
'my cache' will split the printf arguments and results in:

#!/bin/sh
exec sh -c 'exec "$0" "$@"' "env CCACHE_DIR=/tmp/my
cache ccache gcc" "$@"

Sorry, I frequently forget to handle spaces in subdir names correctly.
I'll send another suggestion as reply to v4.


-- 
Nicolas