From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gdb-patches-return-16354-listarch-gdb-patches=sourceware.cygnus.com@sources.redhat.com>
Received: (qmail 28601 invoked by alias); 18 Jun 2002 22:33:22 -0000
Mailing-List: contact gdb-patches-help@sources.redhat.com; run by ezmlm
Precedence: bulk
List-Subscribe: <mailto:gdb-patches-subscribe@sources.redhat.com>
List-Archive: <http://sources.redhat.com/ml/gdb-patches/>
List-Post: <mailto:gdb-patches@sources.redhat.com>
List-Help: <mailto:gdb-patches-help@sources.redhat.com>, <http://sources.redhat.com/ml/#faqs>
Sender: gdb-patches-owner@sources.redhat.com
Received: (qmail 28558 invoked from network); 18 Jun 2002 22:33:17 -0000
Received: from unknown (HELO cygnus.com) (205.180.83.203)
  by sources.redhat.com with SMTP; 18 Jun 2002 22:33:17 -0000
Received: from theotherone.redhat-remotie.org (romulus.sfbay.redhat.com [172.16.27.251])
	by runyon.cygnus.com (8.8.7-cygnus/8.8.7) with ESMTP id PAA27466
	for <gdb-patches@sources.redhat.com>; Tue, 18 Jun 2002 15:33:16 -0700 (PDT)
Received: from localhost (localhost.fidalgo.net [127.0.0.1])
	by theotherone.redhat-remotie.org (Postfix) with ESMTP id 9472FBB29C
	for <gdb-patches@sources.redhat.com>; Tue, 18 Jun 2002 15:32:46 -0700 (PDT)
Date: Tue, 18 Jun 2002 15:33:00 -0000
From: Don Howard <dhoward@redhat.com>
X-X-Sender:  <dhoward@theotherone>
To: <gdb-patches@sources.redhat.com>
Subject: Re: [patch] Use value_at_lazy() when dereferencing type int expressions
In-Reply-To: <Pine.LNX.4.33.0206181426170.3839-100000@theotherone>
Message-ID: <Pine.LNX.4.33.0206181530560.3839-100000@theotherone>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
X-SW-Source: 2002-06/txt/msg00348.txt.bz2



I forgot to give credit to Jim Blandy for suggesting this solution.

2002-06-18  Don Howard  <dhoward@redhat.com>

	* valops.c (value_ind): Use value_at_lazy() when dereferencing
	type int expressions.  Thanks to Jim Blandy <jimb@redhat.com> for
	suggesting this solution.



On Tue, 18 Jun 2002, Don Howard wrote:

> 
> 
> The following allows gdb expressions like
> 
> set *YYYY = zzzz
> 
> to be evaluated without reading target memory at *YYYY.
> 
> No testsuite regressions on x86 linux.
> 
> 
> 2002-06-18  Don Howard  <dhoward@redhat.com>
> 
> 	* valops.c (value_ind): Use value_at_lazy() when dereferencing
> 	type int expressions.
> 
> Index: valops.c
> ===================================================================
> RCS file: /cvs/src/src/gdb/valops.c,v
> retrieving revision 1.60
> diff -p -u -w -r1.60 valops.c
> --- valops.c    14 Jun 2002 14:34:26 -0000      1.60
> +++ valops.c    18 Jun 2002 21:28:52 -0000
> @@ -961,7 +961,7 @@ value_ind (struct value *arg1)
>       to do.  "long long" variables are rare enough that
>       BUILTIN_TYPE_LONGEST would seem to be a mistake.  */
>    if (TYPE_CODE (base_type) == TYPE_CODE_INT)
> -    return value_at (builtin_type_int,
> +    return value_at_lazy (builtin_type_int,
>                      (CORE_ADDR) value_as_long (arg1),
>                      VALUE_BFD_SECTION (arg1));
>    else if (TYPE_CODE (base_type) == TYPE_CODE_PTR)
> 
> 

-- 
dhoward@redhat.com
gdb engineering