On Tue, Sep 29, 2020 at 12:48:43PM -0700, John Hubbard wrote:

On 9/29/20 12:08 PM, Jason Gunthorpe wrote:

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On Tue, Sep 29, 2020 at 11:59:55AM -0700, John Hubbard wrote:

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On 9/29/20 10:55 AM, Jason Gunthorpe wrote:

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On Tue, Sep 29, 2020 at 10:44:31AM -0700, John Hubbard wrote:

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On 9/29/20 9:35 AM, Jason Gunthorpe wrote:

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On Mon, Sep 28, 2020 at 01:10:24PM -0700, John Hubbard wrote:

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On 9/28/20 5:57 AM, Jason Gunthorpe wrote:

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On Sun, Sep 27, 2020 at 11:21:53PM -0700, John Hubbard wrote:

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I don't see any "gcc -m" type of dependency generation pass happening
in this relatively simple Make system.

It happens with -MD, all the deps are stored in files like mm/.init-mm.o.cmd
and sucked into the build.

You are thinking of kbuild. This is not kbuild. There are no such artifacts
being generated.

Oh. Really? That's horrible.

Well, yes, it's not a perfect build system down here in selftests/. Are you saying
that it is worth upgrading? I'm open to suggestions and ideas for improvements,
and at the moment, I have the miniature build system here mostly loaded into my
head. So for a brief shining moment I can probably understand it well enough to
work on it. :)

I only remarked because I didn't know it wasn't using kbuild. I
thought it would have used the existing HOSTCC stuff, not sure why it
is special.

The only investment that seems worthwhile would be to switch it to use
the normal kbuild stuff??

Jason