From patchwork Mon Feb 4 15:27:35 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Lespiau, Damien" X-Patchwork-Id: 2093041 Return-Path: X-Original-To: patchwork-intel-gfx@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by patchwork1.kernel.org (Postfix) with ESMTP id EB14E3FC23 for ; Mon, 4 Feb 2013 15:49:32 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id DDA68E614C for ; Mon, 4 Feb 2013 07:49:32 -0800 (PST) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by gabe.freedesktop.org (Postfix) with ESMTP id 79E12E60BF for ; Mon, 4 Feb 2013 07:29:35 -0800 (PST) Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga101.jf.intel.com with ESMTP; 04 Feb 2013 07:29:35 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.84,600,1355126400"; d="scan'208";a="257441925" Received: from unknown (HELO dyon.amr.corp.intel.com) ([10.255.12.132]) by orsmga001.jf.intel.com with ESMTP; 04 Feb 2013 07:29:34 -0800 From: Damien Lespiau To: intel-gfx@lists.freedesktop.org Date: Mon, 4 Feb 2013 15:27:35 +0000 Message-Id: <1359991705-5254-41-git-send-email-damien.lespiau@intel.com> X-Mailer: git-send-email 1.7.7.5 In-Reply-To: <1359991705-5254-1-git-send-email-damien.lespiau@intel.com> References: <1359991705-5254-1-git-send-email-damien.lespiau@intel.com> Subject: [Intel-gfx] [PATCH 40/90] assembler: Make sure nobody adds a field back to struct brw_instruction X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.13 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: intel-gfx-bounces+patchwork-intel-gfx=patchwork.kernel.org@lists.freedesktop.org Errors-To: intel-gfx-bounces+patchwork-intel-gfx=patchwork.kernel.org@lists.freedesktop.org Adding something there will break the library, so we might as check for it. Signed-off-by: Damien Lespiau --- assembler/gen4asm.h | 9 +++++++++ 1 files changed, 9 insertions(+), 0 deletions(-) diff --git a/assembler/gen4asm.h b/assembler/gen4asm.h index aeb2b9c..388cc75 100644 --- a/assembler/gen4asm.h +++ b/assembler/gen4asm.h @@ -55,6 +55,15 @@ extern long int gen_level; void yyerror (char *msg); +#define STRUCT_SIZE_ASSERT(TYPE, SIZE) \ +typedef struct { \ + char compile_time_assert_ ## TYPE ## _size[ \ + (sizeof (struct TYPE) == (SIZE)) ? 1 : -1]; \ + } _ ## TYPE ## SizeCheck + +/* ensure nobody changes the size of struct brw_instruction */ +STRUCT_SIZE_ASSERT(brw_instruction, 16); + /** * This structure is the internal representation of directly-addressed * registers in the parser.