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From: Andrew Cagney <cagney@redhat.com>
To: Roland McGrath <roland@redhat.com>
Cc: frysk@sourceware.org
Subject: Re: elfutls using assert
Date: Tue, 10 Jul 2007 15:34:00 -0000	[thread overview]
Message-ID: <4693A6F6.8030403@redhat.com> (raw)
In-Reply-To: <20070709230811.DCB0C4D0585@magilla.localdomain>

Unless I'm mistaken, it isn't possible to attach the abort signal as it 
may be sent to any thread?  Anyway, to make the problem more concrete, 
when a panic like this occurs, frysk needs time to pull all inserted 
breakpoints before detaching from the program and exiting.

Andrew

Roland McGrath wrote:
> No, there is no way not to call abort.  It is used for situations that are
> pathological in the same way as a clobbered pointer that might lead to a
> crash.  If you want to improve recovery from such bugs, you might as well
> catch all unexpected fatal signals and diagnose gracefully there (maybe if
> things aren't too bad you can throw an exception from the signal handler
> and never consult the clobbered data structures while reporting and exiting).
>   

  reply	other threads:[~2007-07-10 15:34 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-07-09 12:38 Andrew Cagney
2007-07-09 23:08 ` Roland McGrath
2007-07-10 15:34   ` Andrew Cagney [this message]
2007-07-10 18:47     ` Roland McGrath
2007-07-12 15:10       ` Andrew Cagney

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