Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752931Ab1BLV3M (ORCPT ); Sat, 12 Feb 2011 16:29:12 -0500 Received: from mail-vx0-f174.google.com ([209.85.220.174]:34047 "EHLO mail-vx0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752809Ab1BLV3B convert rfc822-to-8bit (ORCPT ); Sat, 12 Feb 2011 16:29:01 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; b=fxLci/lV1kgzE5iubzvG5YRWBiEHvLX5eeX4YFN39Uc+gG0ncsVB3SPyWqQHYZ+hPu 12M/pYSaoN4Orp8sxtdxLAzZRwF/is0ozQSYNTZ/0gtnzUUtEBnCYqvwfIgJo18PCG8J ry08vhP1wmk4toJwNmDLsW61lsmQ6IBu2NXfQ= MIME-Version: 1.0 In-Reply-To: <87aai1gdr7.fsf@mid.deneb.enyo.de> References: <87aai1gdr7.fsf@mid.deneb.enyo.de> Date: Sat, 12 Feb 2011 13:29:00 -0800 Message-ID: Subject: Re: X32 psABI status From: "H.J. Lu" To: Florian Weimer Cc: GCC Development , GNU C Library , LKML , x32-abi@googlegroups.com Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1258 Lines: 41 On Sat, Feb 12, 2011 at 1:10 PM, Florian Weimer wrote: > * H. J. Lu: > >> We made lots of progresses on x32 pABI: >> >> https://sites.google.com/site/x32abi/ >> >> 1. Kernel interface with syscall is close to be finalized. >> 2. GCC x32 branch is stabilizing. >> 3. The Bionic C library works with the syscall kernel interface. >> >> The next major milestone will be x32 glibc port. > > It is a bit difficult to extract useful information from these > resources. That is true. Contributions are more than welcome. > Is off_t 32 bits? ?Why is the ia32 compatiblity kernel interface used? Yes. > I'm sure a lot of people want to get rid of that in cases where they > control the whole software stack. That is debatable. The current thought is the x32 user space API is the same as is ia32. time_t is also an issue. > Is stack alignment to 16 bytes beneficial for X32? > Even ia32 uses 16byte stack alignment and we will make it official soon via an amendment to the i386 psABI. -- H.J. -- 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/