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From: Jan Kratochvil <jan.kratochvil@redhat.com>
To: Mark Kettenis <mark.kettenis@xs4all.nl>
Cc: tromey@redhat.com, gdb-patches@sourceware.org
Subject: Re: RFC: one approach to fixing PR 14100
Date: Thu, 09 Aug 2012 09:46:00 -0000	[thread overview]
Message-ID: <20120809094621.GA24432@host2.jankratochvil.net> (raw)
In-Reply-To: <201208090942.q799gSti019924@glazunov.sibelius.xs4all.nl>

On Thu, 09 Aug 2012 11:42:28 +0200, Mark Kettenis wrote:
> Sorry, but I really think you're working around a problem in the
> tailcall sniffer here.  The tailcall sniffer seems to violate several
> of the design principles of the frame unwinder framework.  It should
> be fixed instead.

Could you be more specific? The tailcall sniffer is unusual that it needs to
unwind frame (PC) X+1 from frame X and then insert arbitrary number of frames
in between.  So it needs to do "preliminary unwind" first.

I have tried various ways while coding it and I found the current
implementation to fit most the GDB codebase.


Thanks,
Jan


  reply	other threads:[~2012-08-09  9:46 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-08-02 16:12 Tom Tromey
2012-08-03 16:03 ` Tom Tromey
2012-08-03 21:02   ` Jan Kratochvil
2012-08-04  1:58     ` Tom Tromey
2012-08-04  6:26       ` Jan Kratochvil
2012-08-06 15:31       ` Tom Tromey
2012-08-06 15:45         ` Jan Kratochvil
2012-08-09  9:42         ` Mark Kettenis
2012-08-09  9:46           ` Jan Kratochvil [this message]
2012-08-09 20:12             ` Tom Tromey
2012-08-08 18:27 ` Mark Kettenis

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