From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 621BCC2D0F7 for ; Tue, 12 May 2020 16:37:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4418020736 for ; Tue, 12 May 2020 16:37:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727944AbgELQhw (ORCPT ); Tue, 12 May 2020 12:37:52 -0400 Received: from foss.arm.com ([217.140.110.172]:58198 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726922AbgELQhw (ORCPT ); Tue, 12 May 2020 12:37:52 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 1CA6711D4; Tue, 12 May 2020 09:37:52 -0700 (PDT) Received: from e103592.cambridge.arm.com (usa-sjc-imap-foss1.foss.arm.com [10.121.207.14]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 2E5883F305; Tue, 12 May 2020 09:37:51 -0700 (PDT) From: Dave Martin To: mtk.manpages@gmail.com Cc: linux-man@vger.kernel.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Dave Hansen , Thomas Gleixner Subject: [PATCH 07/14] prctl.2: Document removal of Intel MPX prctls Date: Tue, 12 May 2020 17:36:52 +0100 Message-Id: <1589301419-24459-8-git-send-email-Dave.Martin@arm.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1589301419-24459-1-git-send-email-Dave.Martin@arm.com> References: <1589301419-24459-1-git-send-email-Dave.Martin@arm.com> Sender: linux-man-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-man@vger.kernel.org The Intel MPX API was removed from Linux 5.4. See Linux commit f240652b6032 ("x86/mpx: Remove MPX APIs") Document this change. Signed-off-by: Dave Martin Cc: Dave Hansen Cc: Thomas Gleixner --- man2/prctl.2 | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/man2/prctl.2 b/man2/prctl.2 index 7a3fc5c..a84fb1d 100644 --- a/man2/prctl.2 +++ b/man2/prctl.2 @@ -784,7 +784,7 @@ option enabled. .RE .\" prctl PR_MPX_ENABLE_MANAGEMENT .TP -.BR PR_MPX_ENABLE_MANAGEMENT ", " PR_MPX_DISABLE_MANAGEMENT " (since Linux 3.19) " +.BR PR_MPX_ENABLE_MANAGEMENT ", " PR_MPX_DISABLE_MANAGEMENT " (since Linux 3.19, removed in Linux 5.4; only on x86) " .\" commit fe3d197f84319d3bce379a9c0dc17b1f48ad358c .\" See also http://lwn.net/Articles/582712/ .\" See also https://gcc.gnu.org/wiki/Intel%20MPX%20support%20in%20the%20GCC%20compiler @@ -859,6 +859,12 @@ had been called. .IP For further information on Intel MPX, see the kernel source file .IR Documentation/x86/intel_mpx.txt . +.IP +.\" commit f240652b6032b48ad7fa35c5e701cc4c8d697c0b +.\" See also https://lkml.kernel.org/r/20190705175321.DB42F0AD@viggo.jf.intel.com +Due to a lack of toolchain support, +.BR PR_MPX_ENABLE_MANAGEMENT " and " PR_MPX_DISABLE_MANAGEMENT +are not supported by Linux 5.4 or later. .\" prctl PR_SET_NAME .TP .BR PR_SET_NAME " (since Linux 2.6.9)" -- 2.1.4