From: Martin Rodriguez Reboredo <yakoyoku@gmail.com>
To: Miguel Ojeda <ojeda@kernel.org>,
Masahiro Yamada <masahiroy@kernel.org>,
Wedson Almeida Filho <wedsonaf@gmail.com>,
Alex Gaynor <alex.gaynor@gmail.com>
Cc: "Nathan Chancellor" <nathan@kernel.org>,
"Nick Desaulniers" <ndesaulniers@google.com>,
"Nicolas Schier" <nicolas@fjasle.eu>,
"Boqun Feng" <boqun.feng@gmail.com>,
"Gary Guo" <gary@garyguo.net>,
"Björn Roy Baron" <bjorn3_gh@protonmail.com>,
"Benno Lossin" <benno.lossin@proton.me>,
"Alice Ryhl" <aliceryhl@google.com>,
"Andreas Hindborg" <nmi@metaspace.dk>,
linux-kbuild@vger.kernel.org, rust-for-linux@vger.kernel.org,
linux-kernel@vger.kernel.org, patches@lists.linux.dev,
"François Valenduc" <francoisvalenduc@gmail.com>,
"Alexandru Radovici" <msg4alex@gmail.com>,
"Matthew Leach" <dev@mattleach.net>
Subject: Re: [PATCH v2 05/11] kbuild: rust_is_available: add check for `bindgen` invocation
Date: Fri, 16 Jun 2023 11:06:46 -0300 [thread overview]
Message-ID: <51e0fd1d-4d8f-8ef6-f910-6fb1a92755d0@gmail.com> (raw)
In-Reply-To: <20230616001631.463536-6-ojeda@kernel.org>
On 6/15/23 21:16, Miguel Ojeda wrote:
> `scripts/rust_is_available.sh` calls `bindgen` with a special
> header in order to check whether the `libclang` version in use
> is suitable.
>
> However, the invocation itself may fail if, for instance, `bindgen`
> cannot locate `libclang`. This is fine for Kconfig (since the
> script will still fail and therefore disable Rust as it should),
> but it is pretty confusing for users of the `rustavailable` target
> given the error will be unrelated:
>
> ./scripts/rust_is_available.sh: 21: arithmetic expression: expecting primary: "100000 * + 100 * + "
> make: *** [Makefile:1816: rustavailable] Error 2
>
> Instead, run the `bindgen` invocation independently in a previous
> step, saving its output and return code. If it fails, then show
> the user a proper error message. Otherwise, continue as usual
> with the saved output.
>
> Since the previous patch we show a reference to the docs, and
> the docs now explain how `bindgen` looks for `libclang`,
> thus the error message can leverage the documentation, avoiding
> duplication here (and making users aware of the setup guide in
> the documentation).
>
> Reported-by: Nick Desaulniers <ndesaulniers@google.com>
> Link: https://lore.kernel.org/rust-for-linux/CAKwvOdm5JT4wbdQQYuW+RT07rCi6whGBM2iUAyg8A1CmLXG6Nw@mail.gmail.com/
> Reported-by: François Valenduc <francoisvalenduc@gmail.com>
> Closes: https://github.com/Rust-for-Linux/linux/issues/934
> Reported-by: Alexandru Radovici <msg4alex@gmail.com>
> Closes: https://github.com/Rust-for-Linux/linux/pull/921
> Reported-by: Matthew Leach <dev@mattleach.net>
> Closes: https://lore.kernel.org/rust-for-linux/20230507084116.1099067-1-dev@mattleach.net/
> Fixes: 78521f3399ab ("scripts: add `rust_is_available.sh`")
> Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
> ---
> [...]
Reviewed-by: Martin Rodriguez Reboredo <yakoyoku@gmail.com>
next prev parent reply other threads:[~2023-06-16 15:01 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-16 0:16 [PATCH v2 00/11] `scripts/rust_is_available.sh` improvements Miguel Ojeda
2023-06-16 0:16 ` [PATCH v2 01/11] kbuild: rust_is_available: remove -v option Miguel Ojeda
2023-06-16 13:56 ` Martin Rodriguez Reboredo
2023-06-16 0:16 ` [PATCH v2 02/11] kbuild: rust_is_available: fix version check when CC has multiple arguments Miguel Ojeda
2023-06-16 13:58 ` Martin Rodriguez Reboredo
2023-06-16 17:06 ` Nathan Chancellor
2023-06-16 0:16 ` [PATCH v2 03/11] docs: rust: add paragraph about finding a suitable `libclang` Miguel Ojeda
2023-06-16 14:00 ` Martin Rodriguez Reboredo
2023-06-16 17:07 ` Nathan Chancellor
2023-06-16 0:16 ` [PATCH v2 04/11] kbuild: rust_is_available: print docs reference Miguel Ojeda
2023-06-16 14:02 ` Martin Rodriguez Reboredo
2023-06-16 17:07 ` Nathan Chancellor
2023-06-20 5:26 ` Masahiro Yamada
2023-06-16 0:16 ` [PATCH v2 05/11] kbuild: rust_is_available: add check for `bindgen` invocation Miguel Ojeda
2023-06-16 14:06 ` Martin Rodriguez Reboredo [this message]
2023-06-16 17:11 ` Nathan Chancellor
2023-06-20 4:40 ` Masahiro Yamada
2023-06-16 0:16 ` [PATCH v2 06/11] kbuild: rust_is_available: check that environment variables are set Miguel Ojeda
2023-06-16 14:08 ` Martin Rodriguez Reboredo
2023-06-16 17:13 ` Nathan Chancellor
2023-06-20 4:59 ` Masahiro Yamada
2023-06-16 0:16 ` [PATCH v2 07/11] kbuild: rust_is_available: fix confusion when a version appears in the path Miguel Ojeda
2023-06-16 14:10 ` Martin Rodriguez Reboredo
2023-06-16 17:13 ` Nathan Chancellor
2023-06-17 15:33 ` Ethan D. Twardy
2023-06-16 0:16 ` [PATCH v2 08/11] kbuild: rust_is_available: normalize version matching Miguel Ojeda
2023-06-16 14:12 ` Martin Rodriguez Reboredo
2023-06-16 17:14 ` Nathan Chancellor
2023-06-20 5:16 ` Masahiro Yamada
2023-06-16 0:16 ` [PATCH v2 09/11] kbuild: rust_is_available: handle failures calling `$RUSTC`/`$BINDGEN` Miguel Ojeda
2023-06-16 14:14 ` Martin Rodriguez Reboredo
2023-06-16 17:15 ` Nathan Chancellor
2023-06-16 0:16 ` [PATCH v2 10/11] kbuild: rust_is_available: check that output looks as expected Miguel Ojeda
2023-06-16 14:16 ` Martin Rodriguez Reboredo
2023-06-16 17:15 ` Nathan Chancellor
2023-06-16 0:16 ` [PATCH v2 11/11] kbuild: rust_is_available: add test suite Miguel Ojeda
2023-06-16 15:00 ` Martin Rodriguez Reboredo
2023-06-16 7:45 ` [PATCH v2 00/11] `scripts/rust_is_available.sh` improvements Heghedus Razvan
2023-06-20 5:13 ` Masahiro Yamada
2023-08-09 23:20 ` Miguel Ojeda
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