From: Asuna Yang <spriteovo@gmail.com>
To: "Vivian Wang" <wangruikang@iscas.ac.cn>,
"Nathan Chancellor" <nathan@kernel.org>,
"Nicolas Schier" <nsc@kernel.org>,
"Miguel Ojeda" <ojeda@kernel.org>,
"Boqun Feng" <boqun.feng@gmail.com>,
"Gary Guo" <gary@garyguo.net>,
"Björn Roy Baron" <bjorn3_gh@protonmail.com>,
"Benno Lossin" <lossin@kernel.org>,
"Andreas Hindborg" <a.hindborg@kernel.org>,
"Alice Ryhl" <aliceryhl@google.com>,
"Trevor Gross" <tmgross@umich.edu>,
"Danilo Krummrich" <dakr@kernel.org>,
"Nick Desaulniers" <nick.desaulniers+lkml@gmail.com>,
"Bill Wendling" <morbo@google.com>,
"Justin Stitt" <justinstitt@google.com>,
"Paul Walmsley" <pjw@kernel.org>,
"Palmer Dabbelt" <palmer@dabbelt.com>,
"Albert Ou" <aou@eecs.berkeley.edu>,
"Alexandre Ghiti" <alex@ghiti.fr>,
"Jonathan Corbet" <corbet@lwn.net>,
"Jason Montleon" <jmontleo@redhat.com>,
"Han Gao" <rabenda.cn@gmail.com>,
"Conor Dooley" <conor@kernel.org>
Cc: linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org,
rust-for-linux@vger.kernel.org, llvm@lists.linux.dev,
linux-riscv@lists.infradead.org, linux-doc@vger.kernel.org
Subject: Re: [PATCH v5 3/4] rust: add a Kconfig function to test for support of bindgen options
Date: Thu, 4 Dec 2025 20:33:22 +0800 [thread overview]
Message-ID: <9687109b-dc93-4535-848c-e5f22aeb8e9d@gmail.com> (raw)
In-Reply-To: <1a6bb8cd-cc08-458f-a6f6-cdfefd327320@iscas.ac.cn>
On 12/4/25 5:06 PM, Vivian Wang wrote:
>> +
>> +# $(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)
>
bindgen is sensitive to file extensions. If the file is not .h or .hpp,
it complains:
panicked at bindgen/ir/context.rs:562:15:
libclang error; possible causes include:
- Invalid flag syntax
- Unrecognized flags
- Invalid flag arguments
- File I/O errors
- Host vs. target architecture mismatch
next prev parent reply other threads:[~2025-12-04 12:33 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-12-04 7:54 [PATCH v5 0/4] EDITME: RISC-V: re-enable gcc + rust builds Asuna Yang
2025-12-04 7:54 ` [PATCH v5 1/4] rust: export BINDGEN_TARGET from a separate Makefile Asuna Yang
2025-12-04 7:54 ` [PATCH v5 2/4] rust: generate a fatal error if BINDGEN_TARGET is undefined Asuna Yang
2025-12-04 12:41 ` Asuna Yang
2025-12-04 7:54 ` [PATCH v5 3/4] rust: add a Kconfig function to test for support of bindgen options Asuna Yang
2025-12-04 9:06 ` Vivian Wang
2025-12-04 12:33 ` Asuna Yang [this message]
2025-12-06 18:16 ` Vivian Wang
2025-12-06 23:41 ` Asuna Yang
2025-12-04 7:54 ` [PATCH v5 4/4] RISC-V: handle extension configs for bindgen, re-enable gcc + rust builds Asuna Yang
2025-12-04 8:26 ` [PATCH v5 0/4] EDITME: RISC-V: " Asuna Yang
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=9687109b-dc93-4535-848c-e5f22aeb8e9d@gmail.com \
--to=spriteovo@gmail.com \
--cc=a.hindborg@kernel.org \
--cc=alex@ghiti.fr \
--cc=aliceryhl@google.com \
--cc=aou@eecs.berkeley.edu \
--cc=bjorn3_gh@protonmail.com \
--cc=boqun.feng@gmail.com \
--cc=conor@kernel.org \
--cc=corbet@lwn.net \
--cc=dakr@kernel.org \
--cc=gary@garyguo.net \
--cc=jmontleo@redhat.com \
--cc=justinstitt@google.com \
--cc=linux-doc@vger.kernel.org \
--cc=linux-kbuild@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-riscv@lists.infradead.org \
--cc=llvm@lists.linux.dev \
--cc=lossin@kernel.org \
--cc=morbo@google.com \
--cc=nathan@kernel.org \
--cc=nick.desaulniers+lkml@gmail.com \
--cc=nsc@kernel.org \
--cc=ojeda@kernel.org \
--cc=palmer@dabbelt.com \
--cc=pjw@kernel.org \
--cc=rabenda.cn@gmail.com \
--cc=rust-for-linux@vger.kernel.org \
--cc=tmgross@umich.edu \
--cc=wangruikang@iscas.ac.cn \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).