linux-kernel - Re: [PATCH 1/7] RISC-V: Top-Level Makefile for riscv{32,64}

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Message-ID: <CAK8P3a1ipcGSSsQOwwpBa1MZzypcT0CR63z6EX6dT1tZ1+wuqw@mail.gmail.com>
Date:   Tue, 23 May 2017 13:30:50 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     Palmer Dabbelt <palmer@...belt.com>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Olof Johansson <olof@...om.net>, albert@...ive.com
Subject: Re: [PATCH 1/7] RISC-V: Top-Level Makefile for riscv{32,64}

On Tue, May 23, 2017 at 2:41 AM, Palmer Dabbelt <palmer@...belt.com> wrote:
> RISC-V has both 32-bit and 64-bit base ISAs, but they are very similar.
> Like some other platforms, we'd like to share one arch directory between
> the two of them.

I think we mainly do the others for backwards-compatibility with ancient
build scripts, and we don't need that here. Instead, you could add one more
line to the 'SUBARCH:=' statement that interprets the uname output.

        Arnd