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From: Michael FIG <michael-dated-1177036471.79d946@fig.org>
To: gdb@sourceware.org
Subject: Re: debugging a program that uses SIGTRAP
Date: Wed, 21 Mar 2007 02:34:00 -0000	[thread overview]
Message-ID: <7qtzwfuxxk.fsf@babe.fig.org> (raw)
In-Reply-To: <20070321021809.GA2523@caradoc.them.org>

Thanks for the swift reply!

Daniel Jacobowitz <drow@false.org> writes:

> I don't see any good way to solve this.  You've got two sets of
> breakpoints and they're both going to stop GDB - it doesn't know which
> ones you want and which you don't.

Okay.  I thought somehow GDB would pass SIGTRAP iff it knows it has
not set a breakpoint on the current instruction pointer by scanning
its list of breakpoints.

> Even if you get past that point, your handler will now get called
> every time GDB hits a breakpoint or single steps - single stepping
> will probably be broken.

Would the above suggestion be reasonable?  I think it would behave
nicer than what I have now, especially for my circumstance, since
there isn't any overlap between the code I'm trying to debug and the
code _it's_ trying to debug.

If it does seem reasonable, I can look into creating a patch.  I
haven't gotten my hands dirty in GDB before. :)

-- 
Michael FIG <michael@fig.org> /\//\
   http://fig.org/michael/    \//\/


  reply	other threads:[~2007-03-21  2:34 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-03-21  2:06 Michael FIG
2007-03-21  2:18 ` Daniel Jacobowitz
2007-03-21  2:34   ` Michael FIG [this message]
2007-03-21 11:14     ` Daniel Jacobowitz
2007-03-23  4:30       ` Michael FIG
2007-03-21 14:14     ` Joel Brobecker
2007-03-21 18:51     ` Michael Snyder

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