From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751636AbaHSUGx (ORCPT ); Tue, 19 Aug 2014 16:06:53 -0400 Received: from omr1.cc.vt.edu ([198.82.141.52]:37777 "EHLO omr1.cc.vt.edu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751151AbaHSUGw (ORCPT ); Tue, 19 Aug 2014 16:06:52 -0400 X-Mailer: exmh version 2.8.0 04/21/2012 with nmh-1.6+dev To: Thomas Meyer Cc: Linux Kernel Mailing List Subject: Re: [UML] 3.16 build without optimization fails In-Reply-To: Your message of "Tue, 19 Aug 2014 21:12:10 +0200." <1408475530.15309.7.camel@localhost.localdomain> From: Valdis.Kletnieks@vt.edu References: <1408475530.15309.7.camel@localhost.localdomain> Mime-Version: 1.0 Content-Type: multipart/signed; boundary="==_Exmh_1408478794_2094P"; micalg=pgp-sha1; protocol="application/pgp-signature" Content-Transfer-Encoding: 7bit Date: Tue, 19 Aug 2014 16:06:34 -0400 Message-ID: <20267.1408478794@turing-police.cc.vt.edu> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --==_Exmh_1408478794_2094P Content-Type: text/plain; charset=us-ascii 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). --==_Exmh_1408478794_2094P Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 Comment: Exmh version 2.5 07/13/2001 iQIVAwUBU/OuSgdmEQWDXROgAQJAihAAm0xwr24ttzu7Zkewe8Hfml7KdmLuaPlZ wTH3ZUbJcswNj8U5A4JfNEK1Ab1u1V+fbCAyE5QBQt2siXh6bpMHTfsihO8h+RY0 eVpK2uSsLm/Sejlds9F4V0TpqBXHcjBGXS0/nELcP9Msb4IIO4uMFg7ITzQEE8D6 yxq16j8jBydguaChKwVFIOSTHqFTQpt6MUnU36tK8DQo9p+KWzHv8spFzOH6s0tL aASsOBFLcMOSUPEOa/g7mK/wGXZAS4a0NjgljpOWdwGUmTDKFSiqTnDINBzFlr1g B0hYL/JgYflMoyJryOxNB8nn2yjVmlhGTzwcSWWhIRfZfH0gIu9UJUPmo7zPlNgL 64u6cJjC05X6Qjxe1dML7+H16dsfAWeIQ2P1DIYuvfMDUV5ffVstHryLNLBi+L/x nD3sPpR8XzJNJjuo1jFJqAK5dDaEuSbHX4p9qnXAFC62wE9iYh1SSGnQ4QcJuK9U uMRTwkFoPy9yFLYseJtqZCOT4qNpcI5UwyJERxyu7n6jKbuCzDnCXfiexmYQEPdQ NUCZMpyu+8tgLSSt12SAKr0I4Wu28KERKrncx6JutjyldRmN5ZUkmVyQwrzyP2ZF sJrYP/2XELaQNm4Dg/b78ZbkzA72K5577m/pjNNKtbH+08FIWn+/lnGjMvzEOhfl 2RmQHGedGkQ= =WSPb -----END PGP SIGNATURE----- --==_Exmh_1408478794_2094P--