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From: "Gary Guo" <gary@garyguo.net>
To: "Wang Yugui" <wangyugui@e16-tech.com>, <rust-for-linux@vger.kernel.org>
Subject: Re: build error of rust ordered/unordered sections mismatch
Date: Mon, 09 Nov 2026 14:08:34 +0000	[thread overview]
Message-ID: <DMQQMLKPTZX7.F75JGTOR6T0T@garyguo.net> (raw)
In-Reply-To: <20261109074705.418E.409509F4@e16-tech.com>

On Sun Nov 8, 2026 at 11:47 PM GMT, Wang Yugui wrote:
> Hi,
>
> When I build kernel 6.18.60 and 1.68.62(maybe more versions),  a build error
> happended.
>
> ld: __patchable_function_entries has both ordered [`__patchable_function_entries'
> in rust/core.o] and unordered [`__patchable_function_entries' in
> io_uring/fdinfo.o] sections
>
> # rustc -V
> rustc 1.92.0 (ded5c06cf 2025-12-08) (Red Hat 1.92.0-1.module+el8.10.0+40191+971f4d77)
> # bindgen -V
> bindgen 0.72.1
> # gcc --version
> gcc (GCC) 8.5.0 20210514 (Red Hat 8.5.0-30)
>
> But kernel 7.4.0-rc1 is built well on this server.
>
> any advice please.

LLVM emits SHF_LINK_ORDER for patchable function entry section:
https://github.com/llvm/llvm-project/blob/main/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp#L5232-L5252

You can try building the full kernel with LLVM toolchain (LLVM=1) or update the
binutils to 2.36.

Best,
Gary

      reply	other threads:[~2026-11-09 14:08 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-11-08 23:47 build error of rust ordered/unordered sections mismatch Wang Yugui
2026-11-09 14:08 ` Gary Guo [this message]

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