Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753859AbXLGB2A (ORCPT ); Thu, 6 Dec 2007 20:28:00 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752975AbXLGB1x (ORCPT ); Thu, 6 Dec 2007 20:27:53 -0500 Received: from rv-out-0910.google.com ([209.85.198.186]:14328 "EHLO rv-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752953AbXLGB1w (ORCPT ); Thu, 6 Dec 2007 20:27:52 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=subject:from:to:cc:in-reply-to:references:content-type:date:message-id:mime-version:x-mailer:content-transfer-encoding; b=sgea6X/2XEedeq0rVlSxHd1rSbETPBHMZq9lrIdQe1RNgCR0LCVSM/aFFofx7wXoirpoeiaCtzwRAlpjgWuVRqqMZcb1CFhvFZ6xd2BfIl7/c3mxC1WtrOHdJRgpr0S+BhdvYo92uzAMeYqh/MBrE/uTkvNRhnCjMEA4wEdzBrg= Subject: Re: [PATCH x86/mm] x86 vDSO: canonicalize sysenter .eh_frame From: Harvey Harrison To: Roland McGrath Cc: Andrew Morton , Ingo Molnar , Thomas Gleixner , Laurent Riffard , Miles Lane , linux-kernel@vger.kernel.org In-Reply-To: <20071207011429.EE2BC26F8D9@magilla.localdomain> References: <20071204211701.994dfce6.akpm@linux-foundation.org> <47587796.8020705@free.fr> <20071206143754.07a67819.akpm@linux-foundation.org> <20071207011429.EE2BC26F8D9@magilla.localdomain> Content-Type: text/plain Date: Thu, 06 Dec 2007 17:27:33 -0800 Message-Id: <1196990853.22471.15.camel@brick> Mime-Version: 1.0 X-Mailer: Evolution 2.12.1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 981 Lines: 21 On Thu, 2007-12-06 at 17:14 -0800, Roland McGrath wrote: > Some assembler versions automagically optimize .eh_frame contents, > changing their size. The CFI in sysenter.S was not using optimal > formatting, so it would be changed by newer/smarter assemblers. > This ran afoul of the wired constant for padding out the other vDSO > images to match its size. This changes the original hand-coded > source to use the optimal format encoding for its operations. That > leaves nothing more for a fancy assembler to do, so the sizes will > match the wired-in expected size regardless of the assembler version. > > Signed-off-by: Roland McGrath Confirm this fixes the compile errors I was seeing with x86.git Harvey -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/