linux-kernel - Re: [PATCH] gen_compile_command: Add support for separate KBUILD

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Message-ID: <CAKwvOdn-o9UszRW+MQ9Z0Ds9B2wSVBWUsPBPSF0S2DYxVFYpqA@mail.gmail.com>
Date:   Thu, 20 Jun 2019 12:53:22 -0700
From:   Nick Desaulniers <ndesaulniers@...gle.com>
To:     Matthias Kaehlcke <mka@...omium.org>
Cc:     Tom Roeder <tmroeder@...gle.com>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        LKML <linux-kernel@...r.kernel.org>,
        Raul E Rangel <rrangel@...omium.org>,
        Tom Hughes <tomhughes@...omium.org>,
        Douglas Anderson <dianders@...omium.org>,
        Ryan Case <ryandcase@...omium.org>,
        Yu Liu <yudiliu@...gle.com>,
        Doug Anderson <dianders@...gle.com>
Subject: Re: [PATCH] gen_compile_command: Add support for separate
 KBUILD_OUTPUT directory

On Thu, Jun 20, 2019 at 11:45 AM Matthias Kaehlcke <mka@...omium.org> wrote:
>
> gen_compile_command.py currently assumes that the .cmd files and the
> source code live in the same directory, which is not the case when
> a separate KBUILD_OUTPUT directory is used.

Great point; android builds the kernel outside of the source dir
(`make O=/non-source/path ...`). Thanks for the patch! BTW if CrOS is
doing cool stuff with compile_commands.json; I'd like to know!
Particularly; I'm curious if it's possible to generate Ninja build
files from compile_commands.json; I do miss Doug's Kbuild caching
patches' speedup.
Acked-by: Nick Desaulniers <ndesaulniers@...gle.com>

-- 
Thanks,
~Nick Desaulniers