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Date: Wed, 18 Feb 2026 18:57:18 +0800
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Subject: Re: [PATCH v3] tools build: Fix rust cross compilation
To: Dmitrii Dolgov <9erthalion6@gmail.com>, linux-perf-users@vger.kernel.org,
 Ian Rogers <irogers@google.com>, Arnaldo Carvalho de Melo <acme@kernel.org>,
 Miguel Ojeda <ojeda@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>,
 Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
 Linux Kbuild mailing list <linux-kbuild@vger.kernel.org>,
 rust-for-linux <rust-for-linux@vger.kernel.org>,
 Nathan Chancellor <nathan@kernel.org>, Nicolas Schier <nsc@kernel.org>
References: <20260218084736.33114-1-9erthalion6@gmail.com>
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From: Levi Zim <i@kxxt.dev>
In-Reply-To: <20260218084736.33114-1-9erthalion6@gmail.com>
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On 2/18/26 4:47 PM, Dmitrii Dolgov wrote:
> +    RUST_TARGET_FLAGS_riscv	:= riscv64-unknown-linux-gnu

riscv64-unknown-linux-gnu is not a valid rust target triple.
It should be riscv64gc-unknown-linux-gnu [1] if this is applied to build user-space Rust binaries.

[1]: https://doc.rust-lang.org/beta/rustc/platform-support/riscv64gc-unknown-linux-gnu.html

Best Regards,
Levi