From: Daniel Jacobowitz <drow@false.org>
To: Jim Blandy <jimb@codesourcery.com>
Cc: gdb-patches@sourceware.org
Subject: Re: PATCH: use frame_unwind_register instead of frame_register
Date: Mon, 06 Nov 2006 14:33:00 -0000 [thread overview]
Message-ID: <20061106143307.GA31556@nevyn.them.org> (raw)
In-Reply-To: <m3fyd0nptm.fsf@codesourcery.com>
On Fri, Nov 03, 2006 at 02:11:17PM -0800, Jim Blandy wrote:
>
> Committed as obvious --- frame_unwind_register takes care of passing
> all the dummy arguments to frame_register, so dwarf_expr_read_reg
> shouldn't have to bother.
>
> gdb/ChangeLog:
> 2006-11-03 Jim Blandy <jimb@codesourcery.com>
>
> * dwarf2loc.c (dwarf_expr_read_reg): Use frame_unwind_register
> instead of frame_register. Doc fix.
Jim, in addition to leaving a pile of unused variables in the function
(see my other message from Friday), you've introduced an
off-by-one-frame error here. frame_register unwinds from the NEXT
frame, but frame_unwind_register unwinds from THIS frame. Our GDB
autotester reported about six hundred new failures and I'm pretty sure
that's why; we now use the previous frame's r11 for fbreg. Could you
revert or fix this, please?
--
Daniel Jacobowitz
CodeSourcery
next prev parent reply other threads:[~2006-11-06 14:33 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-11-03 22:11 Jim Blandy
2006-11-03 22:23 ` Daniel Jacobowitz
2006-11-06 14:33 ` Daniel Jacobowitz [this message]
2006-11-06 20:06 ` Jim Blandy
2006-11-06 23:24 ` Jim Blandy
2006-11-06 23:27 ` Daniel Jacobowitz
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