From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 31768 invoked by alias); 4 Dec 2013 14:21:13 -0000 Mailing-List: contact gdb-patches-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-patches-owner@sourceware.org Received: (qmail 31748 invoked by uid 89); 4 Dec 2013 14:21:12 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-0.1 required=5.0 tests=AWL,BAYES_20,RDNS_NONE,URIBL_BLOCKED autolearn=no version=3.3.2 X-HELO: mga11.intel.com Received: from Unknown (HELO mga11.intel.com) (192.55.52.93) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Wed, 04 Dec 2013 14:20:46 +0000 Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga102.fm.intel.com with ESMTP; 04 Dec 2013 06:20:27 -0800 X-ExtLoop1: 1 Received: from irvmail001.ir.intel.com ([163.33.26.43]) by fmsmga002.fm.intel.com with ESMTP; 04 Dec 2013 06:20:19 -0800 Received: from ulliclel004.iul.intel.com (ulliclel004.iul.intel.com [172.28.50.125]) by irvmail001.ir.intel.com (8.14.3/8.13.6/MailSET/Hub) with ESMTP id rB4EKI7p021424; Wed, 4 Dec 2013 14:20:18 GMT Received: from ulliclel004.iul.intel.com (ulliclel004.iul.intel.com [127.0.0.1]) by ulliclel004.iul.intel.com (8.13.8/8.12.8/MailSET/client) with ESMTP id rB4EKHNd011532; Wed, 4 Dec 2013 15:20:17 +0100 Received: (from sagovic@localhost) by ulliclel004.iul.intel.com (8.13.8/8.13.1/Submit) id rB4EKCm2011305; Wed, 4 Dec 2013 15:20:12 +0100 From: Sanimir Agovic To: tromey@redhat.com, palves@redhat.com, xdje42@gmail.com Cc: gdb-patches@sourceware.org, keven.boell@intel.com Subject: [PATCH v3 04/13] vla: enable sizeof operator for indirection Date: Wed, 04 Dec 2013 14:21:00 -0000 Message-Id: <1386166785-28037-5-git-send-email-sanimir.agovic@intel.com> In-Reply-To: <1386166785-28037-1-git-send-email-sanimir.agovic@intel.com> References: <1386166785-28037-1-git-send-email-sanimir.agovic@intel.com> X-IsSubscribed: yes X-SW-Source: 2013-12/txt/msg00129.txt.bz2 This patch enables the sizeof operator for indirections: 1| void foo (size_t n) { 2| int vla[n]; 3| int *vla_ptr = &vla; 4| } (gdb) p sizeof(*vla_ptr) yields N. 2013-10-18 Sanimir Agovic Keven Boell * eval.c (evaluate_subexp_for_sizeof): Create a indirect value and retrieve the dynamic type size. Change-Id: I3dbe85ebbc87ca93115a1952316b6436f750a16d Signed-off-by: Sanimir Agovic --- gdb/eval.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/gdb/eval.c b/gdb/eval.c index a81e789..b3e45ca 100644 --- a/gdb/eval.c +++ b/gdb/eval.c @@ -3027,6 +3027,8 @@ evaluate_subexp_for_sizeof (struct expression *exp, int *pos) && TYPE_CODE (type) != TYPE_CODE_ARRAY) error (_("Attempt to take contents of a non-pointer value.")); type = check_typedef (TYPE_TARGET_TYPE (type)); + if (is_dynamic_type (type)) + type = value_type (value_ind (val)); return value_from_longest (size_type, (LONGEST) TYPE_LENGTH (type)); case UNOP_MEMVAL: -- 1.8.3.1