linux-kernel - Re: [PATCH] riscv: Set SRCARCH to riscv if ARCH is riscv64 or riscv32

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Message-ID: <e55edf6f-2aac-87a5-c0f8-363a536b9f92@gmail.com>
Date:   Wed, 30 Mar 2022 14:40:01 -0400
From:   Ben Westover <kwestover.kw@...il.com>
To:     Masahiro Yamada <masahiroy@...nel.org>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>,
        Michal Marek <michal.lkml@...kovi.net>,
        Nick Desaulniers <ndesaulniers@...gle.com>
Subject: Re: [PATCH] riscv: Set SRCARCH to riscv if ARCH is riscv64 or riscv32

Hello Masahiro,

On 3/30/22 11:31 AM, Masahiro Yamada wrote:
> On Wed, Mar 30, 2022 at 11:34 PM Ben Westover <kwestover.kw@...il.com> wrote:
>>
>> When riscv64 or riscv32 are used as the value for ARCH during compilation, like
>> in tools that get the ARCH value from uname, set SRCARCH to riscv instead of
>> failing because the riscv64 and riscv32 targets don't exist.
> 
> Can you refer to the code that really needs this?
Some software like DKMS compiles out-of-tree modules by running `uname -m`and
using that for the ARCH value. Without this patch, that compilation fails because
uname shows either riscv64 or riscv32 while riscv should be used.
This code already exists for sparc and parisc, as well as x86 of course.

Thanks,
--
Ben Westover


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