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From: "aw11 at os dot inf dot tu-dresden dot de" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug inline-asm/11807] GCC should error out when clobbering the stack pointer and frame pointer
Date: Fri, 26 Aug 2005 09:34:00 -0000 [thread overview]
Message-ID: <20050826091355.6692.qmail@sourceware.org> (raw)
In-Reply-To: <20030805124527.11807.aw11@os.inf.tu-dresden.de>
------- Additional Comments From aw11 at os dot inf dot tu-dresden dot de 2005-08-26 09:13 -------
GCC must error out when clobbering the frame pointer register because it is
likely to generate faulty code when the frame pointer is clobbered. You have to
save and restore the frame pointer on your own with (x86 push ebp; pop ebp). The
you need not to clobber it.
The only exception could possibly be the compiler option -fno-frame-pointer.
However at the moment GCC for arm generates faulty code even with this option,
if the frame pointer is clobbered.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11807
next prev parent reply other threads:[~2005-08-26 9:14 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-08-05 12:45 [Bug c++/11807] New: Wrong usage of registers on ARM aw11 at os dot inf dot tu-dresden dot de
2003-08-05 13:22 ` [Bug c++/11807] " pinskia at physics dot uc dot edu
2003-08-05 14:34 ` aw11 at os dot inf dot tu-dresden dot de
2003-08-05 17:51 ` Richard Earnshaw
2003-08-05 17:51 ` rearnsha at arm dot com
2003-08-05 18:14 ` falk at debian dot org
2003-08-06 3:40 ` [Bug c++/11807] GCC should error out when clobering the stack pointer or frame pointer pinskia at physics dot uc dot edu
2003-08-09 16:45 ` [Bug inline-asm/11807] " pinskia at gcc dot gnu dot org
2003-08-23 0:00 ` dhazeghi at yahoo dot com
2003-11-16 23:04 ` pinskia at gcc dot gnu dot org
2003-11-17 11:49 ` falk at debian dot org
2003-11-17 12:39 ` bmills at andrew dot cmu dot edu
2003-11-17 12:44 ` bmills at andrew dot cmu dot edu
2003-11-17 13:21 ` [Bug inline-asm/11807] GCC should error out when clobbering the stack " ebotcazou at gcc dot gnu dot org
2003-11-21 8:47 ` rth at gcc dot gnu dot org
2003-11-21 8:54 ` rth at gcc dot gnu dot org
2003-11-21 9:56 ` bmills at andrew dot cmu dot edu
2003-11-22 17:55 ` falk at debian dot org
2003-12-06 20:09 ` [Bug inline-asm/11807] GCC should error out when clobbering the stack pointer pinskia at gcc dot gnu dot org
2005-08-10 10:46 ` [Bug inline-asm/11807] GCC should error out when clobbering the stack pointer and frame pointer pinskia at gcc dot gnu dot org
2005-08-10 10:47 ` pinskia at gcc dot gnu dot org
2005-08-10 11:25 ` giovannibajo at libero dot it
2005-08-10 11:29 ` pinskia at gcc dot gnu dot org
2005-08-23 11:31 ` nigel at suspend2 dot net
2005-08-23 11:41 ` pinskia at gcc dot gnu dot org
2005-08-23 11:42 ` ncunningham at cyclades dot com
2005-08-26 9:34 ` aw11 at os dot inf dot tu-dresden dot de [this message]
[not found] <bug-11807-6667@http.gcc.gnu.org/bugzilla/>
2006-04-21 2:11 ` acahalan at gmail dot com
2006-08-10 21:48 ` Martin dot vGagern at gmx dot net
2007-01-25 1:02 ` pinskia at gcc dot gnu dot org
2007-01-30 18:20 ` dpm at danger dot com
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