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From: Eli Zaretskii <eliz@gnu.org>
To: Andreas Schwab <schwab@suse.de>
Cc: miles.bader@necel.com, emacs-devel@gnu.org
Subject: Re: My Emacs unicode 2 crash again when I do some *Replace String (M-%)*, I give the debug informations under gdb in the attachments.
Date: Fri, 09 Mar 2007 17:56:31 +0200	[thread overview]
Message-ID: <uodn2mmvk.fsf@gnu.org> (raw)
In-Reply-To: <je649awi9g.fsf@sykes.suse.de> (message from Andreas Schwab on Fri, 09 Mar 2007 16:26:03 +0100)

> From: Andreas Schwab <schwab@suse.de>
> Cc: Miles Bader <miles.bader@necel.com>, emacs-devel@gnu.org
> Date: Fri, 09 Mar 2007 16:26:03 +0100
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> > To be user-friendlier to developers who want to debug optimized code.
> 
> GCC gives all information it has to the debugger.  It's up to the debugger
> to make best use of it.  But GCC can't invent information that does not
> exist any more.  An incoming argument register that is subsequently
> resused for something different simply does not contain the original value
> any more.

I wasn't arguing that GCC had bugs in how it produces the debug info.

I was arguing that there's no practical way for me to see a usable
backtrace in an optimized program.  No matter how you turn it, this
remains a sad fact.

  parent reply	other threads:[~2007-03-09 15:56 UTC|newest]

Thread overview: 49+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-03-06  6:30 My Emacs unicode 2 crash again when I do some *Replace String (M-%)*, I give the debug informations under gdb in the attachments Hongyi Zhao
2007-03-06  7:02 ` Kenichi Handa
2007-03-06  8:57   ` Hongyi Zhao
2007-03-06  8:06 ` Kenichi Handa
2007-03-06  8:41   ` Hongyi Zhao
2007-03-06 12:38     ` Kenichi Handa
2007-03-06 15:23       ` Hongyi Zhao
2007-03-06 14:10   ` David Kastrup
2007-03-07  1:01     ` Kenichi Handa
2007-03-07  2:37       ` Nick Roberts
2007-03-07  3:56         ` Hongyi Zhao
2007-03-07  4:01           ` Nick Roberts
2007-03-07  4:58             ` Hongyi Zhao
2007-03-07  5:10               ` Nick Roberts
2007-03-07  4:58           ` Kenichi Handa
2007-03-07  5:37             ` Display bug [Re: My Emacs unicode 2 crash again ...] Kenichi Handa
2007-03-07  6:26               ` Hongyi Zhao
2007-03-07  6:40                 ` Kenichi Handa
2007-03-07  7:38                   ` Hongyi Zhao
2007-03-07 17:26                 ` Richard Stallman
2007-03-08  3:50                   ` Hongyi Zhao
2007-03-08 21:47                     ` Richard Stallman
2007-03-07 17:25         ` My Emacs unicode 2 crash again when I do some *Replace String (M-%)*, I give the debug informations under gdb in the attachments Richard Stallman
2007-03-08  4:24           ` Eli Zaretskii
2007-03-08  4:50             ` Miles Bader
2007-03-09 15:08               ` Eli Zaretskii
2007-03-09 15:26                 ` Andreas Schwab
2007-03-09 15:51                   ` Eli Zaretskii
2007-03-09 15:56                   ` Eli Zaretskii [this message]
2007-03-09 21:26                 ` Richard Stallman
2007-03-10 19:18                   ` Eli Zaretskii
2007-03-09 22:59                 ` Stefan Monnier
2007-03-11 21:10                   ` Eli Zaretskii
2007-03-11 21:32                     ` David Kastrup
2007-03-11 21:56                       ` Eli Zaretskii
2007-03-11 21:59                         ` David Kastrup
2007-03-12  4:14                           ` Eli Zaretskii
2007-03-11 22:29                       ` Andreas Schwab
2007-03-12  6:11                         ` Stephen J. Turnbull
2007-03-12 22:08                           ` Eli Zaretskii
2007-03-13  3:36                             ` Stephen J. Turnbull
2007-03-13  7:54                               ` David Kastrup
2007-03-13 21:24                                 ` Eli Zaretskii
2007-03-12  7:04                         ` David Kastrup
2007-03-12 14:23                     ` Stefan Monnier
2007-03-12 21:50                       ` Eli Zaretskii
2007-03-13  1:33                         ` Stefan Monnier
2007-03-08  7:19             ` Stefan Monnier
2007-03-09 15:20               ` Eli Zaretskii

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