From patchwork Wed Jun 13 15:32:00 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "H.J. Lu" X-Patchwork-Id: 928935 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=sourceware.org (client-ip=209.132.180.131; helo=sourceware.org; envelope-from=libc-alpha-return-93181-incoming=patchwork.ozlabs.org@sourceware.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; secure) header.d=sourceware.org header.i=@sourceware.org header.b="xKKD7VvZ"; dkim-atps=neutral Received: from sourceware.org (server1.sourceware.org [209.132.180.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 415W5j64Gcz9s01 for ; Thu, 14 Jun 2018 01:34:49 +1000 (AEST) DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:from:to:subject:date:message-id:in-reply-to :references; q=dns; s=default; b=U4JVExbQ+Iud9g5Zf2Jh+gsgBvthArL NnsssQ602UrI3D65k5ezp4CxUa1D1G/BD8y4X4weU+++IS5UTW2PSWHkU5hcJesN gPimnt2g1BHqnfKwTJ4a8M1A3w38z88R41jDOgjwABu4ICTf/XjZQO0FdMfZksRt MAC+1YG6Z5lw= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:from:to:subject:date:message-id:in-reply-to :references; s=default; bh=dtOqahcSXi/GgOxrGZuuu9fXvL0=; b=xKKD7 VvZG4gvy46EBSt21rqKMJnbZCexJr5YSOj+uVIEQ3McOkDKLDUGpXC2IraW9PjzL UHrHy2ODP3soFI5soUgRBFhf6Nmkm/NiU6i90qx7XaTFUI9j6dns2IGirpOlBHbI 17pt5eME3mnHeJC40+tc7kFHQDK5Ro6Lo45VSw= Received: (qmail 18962 invoked by alias); 13 Jun 2018 15:32:29 -0000 Mailing-List: contact libc-alpha-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: libc-alpha-owner@sourceware.org Delivered-To: mailing list libc-alpha@sourceware.org Received: (qmail 18474 invoked by uid 89); 13 Jun 2018 15:32:26 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-25.5 required=5.0 tests=AWL, BAYES_00, FREEMAIL_FROM, GIT_PATCH_0, GIT_PATCH_1, GIT_PATCH_2, GIT_PATCH_3, SPF_SOFTFAIL autolearn=ham version=3.3.2 spammy= X-HELO: mga01.intel.com X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False X-ExtLoop1: 1 From: "H.J. Lu" To: libc-alpha@sourceware.org Subject: [PATCH 17/24] i386: Use _CET_NOTRACK in memcmp-sse4.S Date: Wed, 13 Jun 2018 08:32:00 -0700 Message-Id: <20180613153207.57232-18-hjl.tools@gmail.com> In-Reply-To: <20180613153207.57232-1-hjl.tools@gmail.com> References: <20180613153207.57232-1-hjl.tools@gmail.com> * sysdeps/i386/i686/multiarch/memcmp-sse4.S (BRANCH_TO_JMPTBL_ENTRY): Add _CET_NOTRACK before indirect jump to jump table. --- sysdeps/i386/i686/multiarch/memcmp-sse4.S | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/sysdeps/i386/i686/multiarch/memcmp-sse4.S b/sysdeps/i386/i686/multiarch/memcmp-sse4.S index be37108987..bc2cb2729d 100644 --- a/sysdeps/i386/i686/multiarch/memcmp-sse4.S +++ b/sysdeps/i386/i686/multiarch/memcmp-sse4.S @@ -59,7 +59,7 @@ absolute address. */ \ addl (%ebx,INDEX,SCALE), %ebx; \ /* We loaded the jump table and adjusted EDX/ESI. Go. */ \ - jmp *%ebx + _CET_NOTRACK jmp *%ebx # else # define JMPTBL(I, B) I @@ -67,7 +67,7 @@ jump table with relative offsets. INDEX is a register contains the index into the jump table. SCALE is the scale of INDEX. */ # define BRANCH_TO_JMPTBL_ENTRY(TABLE, INDEX, SCALE) \ - jmp *TABLE(,INDEX,SCALE) + _CET_NOTRACK jmp *TABLE(,INDEX,SCALE) # endif