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Re: [RFA/ARM] Framificate the ARM port [3/3]

From: Daniel Jacobowitz <drow at mvista dot com>
To: Andrew Cagney <ac131313 at redhat dot com>
Cc: gdb-patches at sources dot redhat dot com, rearnsha at arm dot com
Date: Mon, 7 Jul 2003 17:12:53 -0400
Subject: Re: [RFA/ARM] Framificate the ARM port [3/3]
References: <20030630225509.GA30844@nevyn.them.org> <3F01A9A0.90005@redhat.com> <20030707134715.GA24634@nevyn.them.org> <3F0987C2.4010007@redhat.com>

On Mon, Jul 07, 2003 at 10:46:26AM -0400, Andrew Cagney wrote:
> 
> >Makes sense.  I will need to cache a PC to fix some corner cases with
> >signal trampolines, but I'm not fixing that bug right now.
> 
> Can you expand?  I can understand cacheing the previous frame's PC but 
> not this frame's.

We can't use frame_func_unwind on a sigtramp frame.  So we'll need to
cache some information to figure out the PC's offset within the
trampoline.  Otherwise single-stepping in the trampoline will yield two
different frame IDs.

-- 
Daniel Jacobowitz
MontaVista Software                         Debian GNU/Linux Developer

References:
- Re: [RFA/ARM] Framificate the ARM port [3/3]
  - From: Andrew Cagney
- Re: [RFA/ARM] Framificate the ARM port [3/3]
  - From: Daniel Jacobowitz
- Re: [RFA/ARM] Framificate the ARM port [3/3]
  - From: Andrew Cagney

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