From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.org/gmane.linux.lib.musl.general/6986 Path: news.gmane.org!not-for-mail From: "H.J. Lu" Newsgroups: gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.lib.musl.general,gmane.comp.lib.glibc.alpha Subject: Re: [PATCHv3 00/24] ILP32 support in ARM64 Date: Wed, 11 Feb 2015 11:16:58 -0800 Message-ID: References: <20141002155217.GH32147@e104818-lin.cambridge.arm.com> <20150210181302.GA23886@brightrain.aerifal.cx> <20150211190252.GB23507@brightrain.aerifal.cx> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-Trace: ger.gmane.org 1423682297 2126 80.91.229.3 (11 Feb 2015 19:18:17 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 11 Feb 2015 19:18:17 +0000 (UTC) Cc: Catalin Marinas , Andrew Pinski , linux-arm-kernel@lists.infradead.org, LKML , Andrew Pinski , musl@lists.openwall.com, GNU C Library To: Rich Felker Original-X-From: linux-kernel-owner@vger.kernel.org Wed Feb 11 20:18:15 2015 Return-path: Envelope-to: glk-linux-kernel-3@plane.gmane.org Original-Received: from vger.kernel.org ([209.132.180.67]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1YLcnc-0000Qj-LL for glk-linux-kernel-3@plane.gmane.org; Wed, 11 Feb 2015 20:18:13 +0100 Original-Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754660AbbBKTRY (ORCPT ); Wed, 11 Feb 2015 14:17:24 -0500 Original-Received: from mail-oi0-f51.google.com ([209.85.218.51]:45685 "EHLO mail-oi0-f51.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754308AbbBKTQ7 (ORCPT ); Wed, 11 Feb 2015 14:16:59 -0500 Original-Received: by mail-oi0-f51.google.com with SMTP id g201so15948398oib.10 for ; Wed, 11 Feb 2015 11:16:58 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=zmUY2x4lIIRK+I8Su39LSF62lu/aDc41q6pA5AJpAnQ=; b=Q0GFAncvOnvekqNCE+6GO75T545ZkAntwLRoJpJ1wAcsDl6coO7w0WbaQPnonBvuaa oJfQyDs0i4wUpeheMPfcUipgVt55SnYIeo0Ztrfvz5/cCfebRqZlqgsP+W7vqXAPdo1t ZFwEelmVl1JmjLQ1EYWqLWMGeQEWZyG00X4HC9px39gRB+GHHfV0gagdlV4w2pq5snSo e9kmD6K+v+6Qkda0NS1xIzNYKWrT/HGvO6/jsErFfL/hfcZCdfVYzpOdTmWSrb5fENES qSRZMxzNbyy8SKbPf6Y7uZwxVAT4jp5fXC8rrxSjhE5udjlCETJs86iZuSEwYe0QB2xJ leQA== X-Received: by 10.182.246.69 with SMTP id xu5mr89627obc.11.1423682218430; Wed, 11 Feb 2015 11:16:58 -0800 (PST) Original-Received: by 10.76.134.102 with HTTP; Wed, 11 Feb 2015 11:16:58 -0800 (PST) In-Reply-To: <20150211190252.GB23507@brightrain.aerifal.cx> Original-Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Xref: news.gmane.org gmane.linux.kernel:1886700 gmane.linux.ports.arm.kernel:392801 gmane.linux.lib.musl.general:6986 gmane.comp.lib.glibc.alpha:49153 Archived-At: On Wed, Feb 11, 2015 at 11:02 AM, Rich Felker wrote: > On Wed, Feb 11, 2015 at 10:33:32AM -0800, H.J. Lu wrote: >> On Tue, Feb 10, 2015 at 10:13 AM, Rich Felker wrote: >> > On Thu, 2 Oct 2014 at 16:52:18 +0100, Catalin Marinas wrote: >> >> On Wed, Sep 03, 2014 at 10:18:54PM +0100, Andrew Pinski wrote: >> >> > New version with all of the requested changes. Updated to the >> >> > latest sources. >> >> > >> >> > Notable changes from the previous versions: >> >> > VDSO code has been factored out to be easier to understand and >> >> > easier to maintain. >> >> > Move the config option to the last thing that gets added. >> >> > Added some extra COMPAT_* macros for core dumping for easier usage. >> >> >> >> Apart from a few comments I've made, I would also like to see non-empty >> >> commit logs and long line wrapping (both in commit logs and >> >> Documentation/). Otherwise, the patches look fine. >> >> >> >> So what are the next steps? Are the glibc folk ok with the ILP32 Linux >> >> ABI? On the kernel side, what I would like to see: >> > >> > I don't know if this has been discussed on libc-alpha yet or not, but >> > I think we need to open a discussion of how it relates to open glibc >> > bug #16437, which presently applies only to x32 (ILP32 ABI on x86_64): >> > >> > https://sourceware.org/bugzilla/show_bug.cgi?id=16437 >> >> Please leave x32 out of this discussion. I have resolved this bug >> as WONTFIX. > > From the glibc side, I thought things went by a consensus process > these days, not the old WONTFIX regime of he who shall not be named. > If this is not fixed for x32, then x32 cannot provide a conforming C > environment and thus it's rather a toy target. But I think we should > discuss this on libc-alpha. In the mean time please leave it REOPENED. As I said in PR, the issue has been raised in Mar, 2012 when the x32 port was submitted. It has been decided that x32 won't conform to tv_nsec, blksize_t, and suseconds_t as long. I don't believe we will change them to conform to POSIX. As for if x32 is a toy target or not, it will be decided by whether it delivers what users are looking for, not by if tv_nsec, blksize_t, and suseconds_t conform to POSIX. -- H.J.