linux-kernel - Re: [PATCH 04/18] rust: kbuild: add host library support

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <aRHBu3RoOLTrMA8n@google.com>
Date: Mon, 10 Nov 2025 10:43:07 +0000
From: Alice Ryhl <aliceryhl@...gle.com>
To: Miguel Ojeda <ojeda@...nel.org>
Cc: Alex Gaynor <alex.gaynor@...il.com>, Nathan Chancellor <nathan@...nel.org>, 
	Nicolas Schier <nicolas@...sle.eu>, Boqun Feng <boqun.feng@...il.com>, Gary Guo <gary@...yguo.net>, 
	"Björn Roy Baron" <bjorn3_gh@...tonmail.com>, Benno Lossin <lossin@...nel.org>, 
	Andreas Hindborg <a.hindborg@...nel.org>, Trevor Gross <tmgross@...ch.edu>, 
	Danilo Krummrich <dakr@...nel.org>, rust-for-linux@...r.kernel.org, 
	linux-kbuild@...r.kernel.org, linux-kernel@...r.kernel.org, 
	patches@...ts.linux.dev
Subject: Re: [PATCH 04/18] rust: kbuild: add host library support

On Mon, Nov 10, 2025 at 10:50:09AM +0100, Miguel Ojeda wrote:
> Add the a host library rule that produces `.rlib` files to be used by the
> `macros` crate.
> 
> Signed-off-by: Miguel Ojeda <ojeda@...nel.org>

We currently have two kinds of build rules:

* cmd_host-rust used for host binaries such as generate_rust_target
* cmd_rustc_procmacro used for proc macros

This is a library for the second case, not the first case, so it may
make more sense to name this rule procmacrolibrary?

Note that HOSTRUSTFLAGS is passed to only the first category, but this
naming makes it sound like it should be passed to this new build rule,
but I don't think it should be since it is not passed to proc macros.

Alice