From: Daniel Jacobowitz <drow@false.org>
To: Joel Brobecker <brobecker@adacore.com>
Cc: gdb-patches@sources.redhat.com
Subject: Re: [RFC] pb unwinding from pthread_cond_wait on ppc-linux (RFA?)
Date: Wed, 08 Dec 2004 16:51:00 -0000 [thread overview]
Message-ID: <20041208163442.GA30584@nevyn.them.org> (raw)
In-Reply-To: <20041208163211.GY2524@adacore.com>
On Wed, Dec 08, 2004 at 05:32:11PM +0100, Joel Brobecker wrote:
> Gah? Do I understand correctly that the code jumps to 0xffed01c
> only to return back?
Precisely! That's what I thought it would be. It's trying to load lr
with the address of @+16, so that the function can access PIC data
using PC-relative displacement.
Take a look at i386-tdep.c. It handles calls to a return sequence
specially in the prologue analyzer. That may be a better choice than
blindly allowing calls.
(Does this obsolete the "branch in first three insns" check? I'm not
sure if there are other possible reasons for that.)
--
Daniel Jacobowitz
next prev parent reply other threads:[~2004-12-08 16:34 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-12-08 15:59 Joel Brobecker
2004-12-08 16:32 ` Daniel Jacobowitz
2004-12-08 16:34 ` Joel Brobecker
2004-12-08 16:51 ` Daniel Jacobowitz [this message]
2004-12-09 17:23 ` Joel Brobecker
2005-02-09 17:08 ` Joel Brobecker
2005-06-17 4:07 ` Daniel Jacobowitz
2006-10-11 16:03 ` Joel Brobecker
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