From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <macro@linux-mips.org>
Received: from cvs.linux-mips.org (eddie.linux-mips.org [148.251.95.138])
 by sourceware.org (Postfix) with ESMTP id E8A4B387088C
 for <libc-help@sourceware.org>; Thu, 19 Nov 2020 13:42:20 +0000 (GMT)
DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org E8A4B387088C
Authentication-Results: sourceware.org; dmarc=none (p=none dis=none)
 header.from=linux-mips.org
Authentication-Results: sourceware.org;
 spf=none smtp.mailfrom=macro@linux-mips.org
Received: from localhost.localdomain ([127.0.0.1]:43338 "EHLO localhost"
 rhost-flags-OK-OK-OK-OK) by eddie.linux-mips.org with ESMTP
 id S23991911AbgKSNmSISlba (ORCPT <rfc822;libc-help@sourceware.org>);
 Thu, 19 Nov 2020 14:42:18 +0100
Date: Thu, 19 Nov 2020 13:42:18 +0000 (GMT)
From: "Maciej W. Rozycki" <macro@linux-mips.org>
To: =?UTF-8?Q?Philippe_Mathieu-Daud=C3=A9?= <f4bug@amsat.org>
cc: Fredrik Noring <noring@nocrew.org>, linux-mips@vger.kernel.org,
 Andreas Jaeger <aj@suse.de>, Nick Clifton <nickc@redhat.com>,
 =?UTF-8?Q?J=C3=BCrgen_Urban?= <JuergenUrban@gmx.de>,
 libc-help@sourceware.org
Subject: Re: [PATCH 002/120] MIPS: R5900: Trap the RDHWR instruction as an
 SQ address exception
In-Reply-To: <alpine.LFD.2.21.2011191241410.656242@eddie.linux-mips.org>
Message-ID: <alpine.LFD.2.21.2011191340430.656242@eddie.linux-mips.org>
References: <cover.1567326213.git.noring@nocrew.org>
 <4f856a5ea2c039c6639df875d11b5bff1bf7ecd2.1567326213.git.noring@nocrew.org>
 <2767f5c3-4e89-6543-34f7-6cd1a1be8c23@amsat.org>
 <alpine.LFD.2.21.2011191241410.656242@eddie.linux-mips.org>
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
X-Spam-Status: No, score=-3.2 required=5.0 tests=BAYES_00, KAM_DMARC_STATUS,
 KAM_LAZY_DOMAIN_SECURITY, KHOP_HELO_FCRDNS, SPF_HELO_NONE, SPF_NONE,
 TXREP autolearn=no autolearn_force=no version=3.4.2
X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on
 server2.sourceware.org
X-BeenThere: libc-help@sourceware.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Libc-help mailing list <libc-help.sourceware.org>
List-Unsubscribe: <https://sourceware.org/mailman/options/libc-help>,
 <mailto:libc-help-request@sourceware.org?subject=unsubscribe>
List-Archive: <https://sourceware.org/pipermail/libc-help/>
List-Help: <mailto:libc-help-request@sourceware.org?subject=help>
List-Subscribe: <https://sourceware.org/mailman/listinfo/libc-help>,
 <mailto:libc-help-request@sourceware.org?subject=subscribe>
X-List-Received-Date: Thu, 19 Nov 2020 13:42:22 -0000

On Thu, 19 Nov 2020, Maciej W. Rozycki wrote:

>  Consequently an AdES exception is triggered which we can trap and handle, 
> reinterpreting the encoding according to our needs and return the TLS 
> pointer in $v1 rather than issuing a SIGBUS.

 ... while keeping regular SQ instruction use intact, I should have added.

  Maciej