Messages in this thread |  | | Date | Thu, 4 Dec 2025 17:06:05 +0800 | | Subject | Re: [PATCH v5 3/4] rust: add a Kconfig function to test for support of bindgen options | | From | Vivian Wang <> |
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On 12/4/25 15:54, Asuna Yang wrote: > From: Asuna Yang <spriteovo@gmail.com> > > Add a new `bindgen-backend-option` Kconfig function to test whether the > bindgen backend supports a given flag. > > A subsequent commit will use this function to test for RISC-V extension > flags. > > Signed-off-by: Asuna Yang <SpriteOvO@gmail.com> > --- > scripts/Kconfig.include | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/scripts/Kconfig.include b/scripts/Kconfig.include > index d42042b6c9e2..5d4d29eed0b3 100644 > --- a/scripts/Kconfig.include > +++ b/scripts/Kconfig.include > @@ -78,3 +78,8 @@ rustc-llvm-version := $(shell,$(srctree)/scripts/rustc-llvm-version.sh $(RUSTC)) > # If you are testing for unstable features, consider testing RUSTC_VERSION > # instead, as features may have different completeness while available. > rustc-option = $(success,trap "rm -rf .tmp_$$" EXIT; mkdir .tmp_$$; $(RUSTC) $(1) --crate-type=rlib /dev/null --out-dir=.tmp_$$ -o .tmp_$$/tmp.rlib) > + > +# $(bindgen-backend-option,<flag>) > +# Return y if bindgen backend supports <flag>, n otherwise > +# For now, the backend refers only to libclang, so more specifically, this function tests whether the given flag is recognized by the libclang used by bindgen. > +bindgen-backend-option = $(success,trap "rm -f .tmp_$$.h" EXIT; touch .tmp_$$.h; $(BINDGEN) .tmp_$$.h -- --target=$(BINDGEN_TARGET) $(1)) > Can probably be simplified down to:
$(BINDGEN) /dev/null -- -x c --target=$(BINDGEN_TARGET) $(1)
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