linux-kernel - Re: [RFC v3 11/19] kunit: add Python libraries for handing KUnit config and kernel

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Message-ID: <20181207010517.GH28501@garbanzo.do-not-panic.com>
Date:   Thu, 6 Dec 2018 17:05:17 -0800
From:   Luis Chamberlain <mcgrof@...nel.org>
To:     Kieran Bingham <kieran.bingham@...asonboard.com>
Cc:     Brendan Higgins <brendanhiggins@...gle.com>,
        Kent Overstreet <kent.overstreet@...il.com>,
        Matthew Wilcox <willy@...radead.org>,
        Eryu Guan <guaneryu@...il.com>,
        Eric Sandeen <sandeen@...deen.net>, jeffm@...e.com,
        Sasha Levin <Alexander.Levin@...rosoft.com>,
        Greg KH <gregkh@...uxfoundation.org>,
        Kees Cook <keescook@...gle.com>, shuah@...nel.org,
        Joel Stanley <joel@....id.au>, mpe@...erman.id.au,
        joe@...ches.com, brakmo@...com, rostedt@...dmis.org,
        Tim.Bird@...y.com, khilman@...libre.com,
        Julia Lawall <julia.lawall@...6.fr>,
        linux-kselftest@...r.kernel.org, kunit-dev@...glegroups.com,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        jdike@...toit.com, richard@....at, linux-um@...ts.infradead.org,
        Daniel Vetter <daniel@...ll.ch>,
        dri-devel@...ts.freedesktop.org, Rob Herring <robh@...nel.org>,
        dan.j.williams@...el.com, linux-nvdimm@...ts.01.org,
        Frank Rowand <frowand.list@...il.com>,
        Knut Omang <knut.omang@...cle.com>,
        Felix Guo <felixguoxiuping@...il.com>,
        Petr Mladek <pmladek@...e.com>, fsdevel@...r.kernel.org
Subject: Re: [RFC v3 11/19] kunit: add Python libraries for handing KUnit
 config and kernel

On Thu, Dec 06, 2018 at 12:32:47PM +0000, Kieran Bingham wrote:
> My main initial idea for a libumlinux is to provide infrastructure such
> as our linked-lists and other kernel formatting so that we can take
> kernel code directly to userspace for test and debug (assuming that
> there are no hardware dependencies or things that we can't mock out)

The tools/ directory already does this for a tons of things. Its where
I ended up placing some API I tested a long time ago when I wanted to
test it in userspace, and provide the unit test in userspace (for my
linker table patches).

> Now we just have to start the race to see who can tweak the kernel build
> system to produce an output library first :)

Should be relatively easy if the tools directory used. Yes, there is
an inherent risk of duplication, but that was decided long ago.

  Luis