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From: Daniel Jacobowitz <drow@mvista.com>
To: fnf@redhat.com
Cc: gdb@sources.redhat.com
Subject: Re: DW_OP_piece coming in gcc 3.4
Date: Fri, 06 Feb 2004 16:36:00 -0000	[thread overview]
Message-ID: <20040206163653.GA16536@nevyn.them.org> (raw)
In-Reply-To: <200402060930.34787.fnf@ninemoons.com>

On Fri, Feb 06, 2004 at 09:30:34AM -0700, Fred Fish wrote:
> I've been tasked with fixing this problem, or at least deciding if it
> can be fixed in the amount of time I have available to work on it.

Great!

> I've scanned most of the prior messages on the gdb@sources.redhat.com
> and gdb-patches@sources.redhat.com mailing lists which can be found by
> searching for DW_OP_piece.  I intend to go back today and study them
> in detail to get some history on what has been discussed about this
> problem.
> 
> If you have contributed to this topic in the past and have some new
> suggestions and/or ideas, or want to contribute, I'd appreciate any
> additional relevant input.

At this point, I believe the correct fix will be mostly contained to
the dwarf2-expr and dwarf2-loc code.  A _complete_ fix will be quite
complicated; enough to print variables will not be too hard, since we
can read them in the LOC_COMPUTED read method, and mark them as
not_lval.

The problem I see with being able to write and fully use such variables
is that we need to audit uses of SYMBOL_VALUE_ADDRESS to find which are
used for full symbols.

-- 
Daniel Jacobowitz
MontaVista Software                         Debian GNU/Linux Developer


  reply	other threads:[~2004-02-06 16:36 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-02-06 16:30 Fred Fish
2004-02-06 16:36 ` Daniel Jacobowitz [this message]
2004-02-16 19:25 ` Andrew Cagney
2004-02-16 19:42   ` Fred Fish
2004-02-17  7:39     ` Andreas Jaeger
2004-02-17 15:11       ` Daniel Jacobowitz
2004-02-18  6:42         ` Fred Fish
  -- strict thread matches above, loose matches on Subject: below --
2004-01-30  5:27 Michael Elizabeth Chastain
2004-01-30  5:52 ` Kevin Buettner
2004-01-30 15:06   ` Daniel Jacobowitz

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