From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 5267 invoked by alias); 30 Jul 2014 23:24:45 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org Received: (qmail 5212 invoked by uid 48); 30 Jul 2014 23:24:41 -0000 From: "tromey at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug c/59850] Support sparse-style pointer address spaces (type attributes) Date: Wed, 30 Jul 2014 23:24:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: c X-Bugzilla-Version: unknown X-Bugzilla-Keywords: X-Bugzilla-Severity: enhancement X-Bugzilla-Who: tromey at gcc dot gnu.org X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-SW-Source: 2014-07/txt/msg02014.txt.bz2 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59850 --- Comment #33 from Tom Tromey --- My current patch fails on some of the sparse validation tests. E.g., attr-in-parameter.c: attr_in_parameter.c:8:4: warning: assignment from pointer to different address space [-Waddress-space] This happens due to this line: static int (A *p); I have yet to debug this one. Also from noderef.c I found out that sparse accepts "noderef" on non-pointer types: struct x __A x; I hadn't realized this was possible. It seems somewhat weird to me, but I suppose I'll update my patch to follow. This also affects address_space, as shown by typeof-attribute.c: unsigned int __percpu x;