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From: "ccoutant at google dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug other/46770] Replace .ctors/.dtors with .init_array/.fini_array on targets supporting them
Date: Tue, 17 Apr 2012 22:00:00 -0000	[thread overview]
Message-ID: <bug-46770-4-6bromjMJzM@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-46770-4@http.gcc.gnu.org/bugzilla/>

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46770

--- Comment #87 from ccoutant at google dot com 2012-04-17 21:52:12 UTC ---
> Just as a quick reminder, the reversed ctor execution order is big performance
> problem for C++ Apps inlcuding Mozilla and Chrome ;)
> So whatever we do, I would preffer to not have it by default.

If the issue is the iteration over the contents of the final
.init_array section, this solution won't have that problem -- the
loader will still execute .init_array entries in forward order (we'll
be reversing them at link time).

If the issue is the code layout of the ctors themselves, that sounds
like something that could be fixed through code layout optimizations
(e.g., gold's --section-ordering-file option).

-cary


  parent reply	other threads:[~2012-04-17 22:00 UTC|newest]

Thread overview: 110+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-12-02 19:21 [Bug target/46770] New: " mh+gcc at glandium dot org
2010-12-02 19:24 ` [Bug target/46770] " mh+gcc at glandium dot org
2010-12-02 22:22 ` hubicka at gcc dot gnu.org
2010-12-02 23:01 ` hjl.tools at gmail dot com
2010-12-07 15:45 ` hjl.tools at gmail dot com
2010-12-07 15:45 ` hjl.tools at gmail dot com
2010-12-07 16:45 ` hjl.tools at gmail dot com
2010-12-09 17:55 ` hjl.tools at gmail dot com
2010-12-11 14:15 ` hubicka at gcc dot gnu.org
2010-12-11 14:28 ` hjl.tools at gmail dot com
2010-12-11 14:36 ` mh+gcc at glandium dot org
2010-12-11 15:01 ` hubicka at ucw dot cz
2010-12-11 15:34 ` hjl.tools at gmail dot com
2010-12-11 16:17 ` hubicka at ucw dot cz
2010-12-11 16:54 ` hjl.tools at gmail dot com
2010-12-11 18:33 ` mmitchel at gcc dot gnu.org
2010-12-11 18:47 ` hjl.tools at gmail dot com
2010-12-11 18:50 ` mark at codesourcery dot com
2010-12-11 19:02 ` hjl.tools at gmail dot com
2010-12-11 19:33 ` mark at codesourcery dot com
2010-12-11 19:44 ` hjl.tools at gmail dot com
2010-12-11 19:47 ` hjl.tools at gmail dot com
2010-12-11 19:48 ` mmitchel at gcc dot gnu.org
2010-12-11 19:51 ` hjl.tools at gmail dot com
2010-12-11 19:53 ` hjl.tools at gmail dot com
2010-12-11 19:57 ` mark at codesourcery dot com
2010-12-11 20:04 ` hjl.tools at gmail dot com
2010-12-11 20:17 ` hjl.tools at gmail dot com
2010-12-11 20:19 ` mark at codesourcery dot com
2010-12-11 21:01 ` hubicka at ucw dot cz
2010-12-11 21:07 ` mark at codesourcery dot com
2010-12-11 21:07 ` hjl.tools at gmail dot com
2010-12-11 22:57 ` hjl.tools at gmail dot com
2010-12-11 23:19 ` mark at codesourcery dot com
2010-12-11 23:28 ` hjl.tools at gmail dot com
2010-12-11 23:30 ` mark at codesourcery dot com
2010-12-11 23:48 ` hjl.tools at gmail dot com
2010-12-11 23:55 ` mark at codesourcery dot com
2010-12-12  0:01 ` hjl.tools at gmail dot com
2010-12-12  0:03 ` mark at codesourcery dot com
2010-12-12  0:08 ` hjl.tools at gmail dot com
2010-12-12  0:12 ` mark at codesourcery dot com
2010-12-12  0:20 ` hjl.tools at gmail dot com
2010-12-12  0:25 ` mark at codesourcery dot com
2010-12-12  0:25 ` hjl.tools at gmail dot com
2010-12-12  0:32 ` hjl.tools at gmail dot com
2010-12-12 15:54 ` hjl.tools at gmail dot com
2010-12-12 18:40 ` mark at codesourcery dot com
2010-12-13  2:30 ` ian at airs dot com
2010-12-13 18:08 ` joseph at codesourcery dot com
2010-12-13 19:41 ` hjl.tools at gmail dot com
2010-12-13 20:24 ` ccoutant at gcc dot gnu.org
2010-12-13 20:31 ` hjl.tools at gmail dot com
2010-12-13 20:42 ` ccoutant at gcc dot gnu.org
2010-12-13 20:48 ` hjl.tools at gmail dot com
2010-12-14  0:39 ` ian at airs dot com
2010-12-14  1:14 ` hjl.tools at gmail dot com
2010-12-14  1:24 ` ccoutant at gcc dot gnu.org
2010-12-14  1:32 ` hjl.tools at gmail dot com
2010-12-14 12:52 ` hubicka at gcc dot gnu.org
2010-12-14 13:17 ` paolo.carlini at oracle dot com
2010-12-14 13:26 ` hubicka at ucw dot cz
2010-12-14 13:33 ` paolo.carlini at oracle dot com
2010-12-14 15:17 ` mark at codesourcery dot com
2011-03-25 19:55 ` jakub at gcc dot gnu.org
2011-04-28 16:17 ` rguenth at gcc dot gnu.org
2011-05-09 10:11 ` amodra at gmail dot com
2011-06-23 16:22 ` ian at airs dot com
2011-06-23 23:17 ` hjl.tools at gmail dot com
2011-06-24 13:22 ` ian at airs dot com
2011-06-24 13:35 ` jakub at gcc dot gnu.org
2011-08-20 20:08 ` hjl at gcc dot gnu.org
2011-08-20 20:37 ` [Bug other/46770] " hjl.tools at gmail dot com
2012-02-18  6:05 ` jingyu at gcc dot gnu.org
2012-02-18  7:21 ` jingyu at gcc dot gnu.org
2012-02-22 22:28 ` jingyu at gcc dot gnu.org
2012-04-17  1:22 ` ccoutant at gcc dot gnu.org
2012-04-17 14:59 ` hjl.tools at gmail dot com
2012-04-17 15:30 ` ppluzhnikov at google dot com
2012-04-17 15:49 ` hjl.tools at gmail dot com
2012-04-17 17:18 ` ppluzhnikov at google dot com
2012-04-17 18:04 ` ccoutant at gcc dot gnu.org
2012-04-17 18:20 ` hjl.tools at gmail dot com
2012-04-17 18:54 ` ccoutant at google dot com
2012-04-17 19:04 ` hjl.tools at gmail dot com
2012-04-17 20:25 ` ccoutant at google dot com
2012-04-17 20:39 ` hjl.tools at gmail dot com
2012-04-17 21:12 ` ccoutant at google dot com
2012-04-17 21:34 ` hubicka at ucw dot cz
2012-04-17 22:00 ` ccoutant at google dot com [this message]
2012-04-17 22:27 ` hjl.tools at gmail dot com
2012-04-18  0:05 ` tglek at mozilla dot com
2012-04-18  0:51 ` ppluzhnikov at google dot com
2012-04-18  1:33 ` tglek at mozilla dot com
2012-04-18  3:53 ` ian at airs dot com
2012-04-18  4:58 ` tglek at mozilla dot com
2012-04-19  0:16 ` ian at airs dot com
2012-04-19 15:15 ` hubicka at ucw dot cz
2012-04-22  8:03 ` igodard at pacbell dot net
2012-04-22 17:04 ` ian at airs dot com
2012-04-22 17:47 ` igodard at pacbell dot net
2012-04-22 18:36 ` hubicka at ucw dot cz
2012-04-22 18:45 ` paolo.carlini at oracle dot com
2012-04-22 19:37 ` igodard at pacbell dot net
2012-04-22 21:19 ` ian at airs dot com
2012-04-22 21:53 ` igodard at pacbell dot net
2012-04-22 22:28 ` ian at airs dot com
2014-10-01 16:46 ` marcelo at brs dot ind.br
2014-10-01 18:16 ` marcelo at brs dot ind.br
2014-10-01 18:50 ` ian at airs dot com

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