From: Valdis.Kletnieks@vt.edu
To: Thomas Meyer <thomas@m3y3r.de>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [UML] 3.16 build without optimization fails
Date: Tue, 19 Aug 2014 16:06:34 -0400 [thread overview]
Message-ID: <20267.1408478794@turing-police.cc.vt.edu> (raw)
In-Reply-To: Your message of "Tue, 19 Aug 2014 21:12:10 +0200." <1408475530.15309.7.camel@localhost.localdomain>
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On Tue, 19 Aug 2014 21:12:10 +0200, Thomas Meyer said:
> > Hi,
> >
> > the build with -O0 fails with:
> > bug or feature?
> >
> > any ideas?
Feature. The kernel is *known* to not build with -O0, because that
disables *all* function inlining, and there's several functions that *have*
to be inlined in order to function properly (most notably, anything
that uses the gcc __builtin_return_address in a function that is expected
to be inlined).
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next prev parent reply other threads:[~2014-08-19 20:06 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-19 19:12 Thomas Meyer
2014-08-19 20:06 ` Valdis.Kletnieks [this message]
2014-08-19 20:19 Thomas Meyer
2014-08-19 20:25 ` Valdis.Kletnieks
2014-08-19 20:26 ` Richard Weinberger
2014-08-19 20:35 Thomas Meyer
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