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From: Daniel Jacobowitz <drow@false.org>
To: Fabian Cenedese <Cenedese@indel.ch>
Cc: gdb@sources.redhat.com
Subject: Re: Thread-specific breakpoints
Date: Mon, 16 Aug 2004 14:24:00 -0000	[thread overview]
Message-ID: <20040816142403.GA25458@nevyn.them.org> (raw)
In-Reply-To: <5.2.0.9.1.20040816154657.01ce05d0@NT_SERVER>

On Mon, Aug 16, 2004 at 04:20:39PM +0200, Fabian Cenedese wrote:
> Yes, that's along the lines I was thinking. And after intense looking I even
> found it in the manual. I missed it the first time as the break command
> is explained in 5.1.1 whereas break <location> thread <number> by itself
> is in 5.4.
> 
> After looking at the communication with the stub it seems that the Z0
> packet only informs the stub about a breakpoint but not about the thread.
> So every thread will stop here and gdb needs to tell them to continue
> it it's not the wanted one. That could generate quite a lot of communication
> (important if it's a serial connection) and also changes the timing quite
> a lot. If the breakpoint handling was in the stub the stop'n'go could be
> made much faster without the interaction of gdb. I guess if there is no
> other possibility I could use the "monitor" command to inform the stub
> about the thread of the breakpoint. But then again this is difficult as the
> breakpoints are only set once a "step" or "continue" is sent...
> 
> Thanks for the help anyway

Yes, there's no way to set remote-assisted thread-specific breakpoints
in the remote protocol.  This might be a good thing to add.

-- 
Daniel Jacobowitz

  reply	other threads:[~2004-08-16 14:24 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-08-16  7:18 Fabian Cenedese
2004-08-16 13:26 ` Daniel Jacobowitz
2004-08-16 14:20   ` Fabian Cenedese
2004-08-16 14:24     ` Daniel Jacobowitz [this message]
2004-08-16 19:30     ` Eli Zaretskii
2004-08-17  8:07       ` Fabian Cenedese
2004-08-18  3:57         ` Eli Zaretskii
2004-08-18 11:57 Fabian Cenedese
2004-08-26 22:50 ` Paul Breed
2004-08-27  7:37   ` Fabian Cenedese

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