Re: [PATCH 03/18] rust: kbuild: simplify `--cfg` handling

[Alice Ryhl]

On Mon, Nov 10, 2025 at 10:50:08AM +0100, Miguel Ojeda wrote:
> We need to handle `cfg`s in both `rustc` and `rust-analyzer`, and in
> future commits some of those contain double quotes, which complicates
> things further.
> 
> Thus, instead of removing the `--cfg ` part in the rust-analyzer
> generation script, have the `*-cfgs` variables contain just the actual
> `cfg`, and use that to generate the actual flags in `*-flags`.
> 
> Signed-off-by: Miguel Ojeda <ojeda@xxxxxxxxxx>

Reviewed-by: Alice Ryhl <aliceryhl@xxxxxxxxxx>

For anyone else reviewing this, here is the relevant part of the
makefile that calls generate_rust_analyzer:

rust-analyzer:
	$(Q)MAKEFLAGS= $(srctree)/scripts/generate_rust_analyzer.py \
		--cfgs='core=$(core-cfgs)' $(core-edition) \
		$(realpath $(srctree)) $(realpath $(objtree)) \
		$(rustc_sysroot) $(RUST_LIB_SRC) $(if $(KBUILD_EXTMOD),$(srcroot)) \
		> rust-project.json