From patchwork Fri Feb 28 00:00:47 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Garnier X-Patchwork-Id: 11411167 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id D7B8B138D for ; Fri, 28 Feb 2020 00:01:44 +0000 (UTC) Received: from mother.openwall.net (mother.openwall.net [195.42.179.200]) by mail.kernel.org (Postfix) with SMTP id 3F121246A5 for ; Fri, 28 Feb 2020 00:01:44 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="R0fDgyKL" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3F121246A5 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=chromium.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kernel-hardening-return-17993-patchwork-kernel-hardening=patchwork.kernel.org@lists.openwall.com Received: (qmail 21529 invoked by uid 550); 28 Feb 2020 00:01:27 -0000 Mailing-List: contact kernel-hardening-help@lists.openwall.com; run by ezmlm Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-ID: Delivered-To: mailing list kernel-hardening@lists.openwall.com Received: (qmail 20371 invoked from network); 28 Feb 2020 00:01:25 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=fvhzUd6Qu7cjrcCOJttmYiBqe1hyVQ5v3hyhsFuyKi8=; b=R0fDgyKLTHQkfsWhWRkFBROySWE56w7r6inEPzUviguIQfBELPtivu7yY4Ik9lv7t7 /nOIfMq8t2T13X1qgjHYJJ5cidxN2ymJ2qiAEIYtGpRaD6z6Ni0j6HvemLNDgKpXyqwv tyPUm4U3B3hIYcksrbm95hIv5aO+ZSAMYtXnc= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=fvhzUd6Qu7cjrcCOJttmYiBqe1hyVQ5v3hyhsFuyKi8=; b=iL9CN488pP72NIBiFXfARVMR8ZI7pT7H3YEHbwGORV0AA27+d/C4oCupelIRpg/U7X 4SEX3ewJoMh0hG5PxO1seHxK9v5qY/dZ2QmIyXL6TgcYzluTAkgBEYZK9/qzCR6PBSMB CvH1YLz++tW1qY+63nIpokEoJ7vAYAA7oSmbizEKd5t7GP858RfEl0IOc9jZ2ujSJL2f n7JIcg+JfV24aiARfEJ8lKS4supujpiUrOMArXA8OGqAVmYxFTpZc/KrIwVPjYtE2bZ0 nEgUGskyHm4QH9qDA938pRyrX7CmtSGrf6qxlbCzdKQJIE/cET7K/wSjk77k4RF/3qCq nQfQ== X-Gm-Message-State: APjAAAWpOhUXl2K2UhELLQ/bCBdkwOKtTCLm9J7zLGrC+rH7Vu2GPa/0 ki0OLALX0lvxA61Jkmw70sEk3djFp/Q= X-Google-Smtp-Source: APXvYqwThB4LJ42cXGHIwD4VP+n+OceP9p72vw3hubV+kmuIORRSU7xn+cXTMOPaKk/qKAWgjHeHnQ== X-Received: by 2002:a63:4e22:: with SMTP id c34mr1833461pgb.263.1582848073452; Thu, 27 Feb 2020 16:01:13 -0800 (PST) From: Thomas Garnier To: kernel-hardening@lists.openwall.com Cc: kristen@linux.intel.com, keescook@chromium.org, Thomas Garnier , Thomas Gleixner , Ingo Molnar , Borislav Petkov , "H. Peter Anvin" , x86@kernel.org, Peter Zijlstra , Masami Hiramatsu , Will Deacon , linux-kernel@vger.kernel.org Subject: [PATCH v11 02/11] x86: Add macro to get symbol address for PIE support Date: Thu, 27 Feb 2020 16:00:47 -0800 Message-Id: <20200228000105.165012-3-thgarnie@chromium.org> X-Mailer: git-send-email 2.25.1.481.gfbce0eb801-goog In-Reply-To: <20200228000105.165012-1-thgarnie@chromium.org> References: <20200228000105.165012-1-thgarnie@chromium.org> MIME-Version: 1.0 Add a new _ASM_MOVABS macro to fetch a symbol address. Replace "_ASM_MOV $, %dst" code construct that are not compatible with PIE. Signed-off-by: Thomas Garnier --- arch/x86/include/asm/asm.h | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/x86/include/asm/asm.h b/arch/x86/include/asm/asm.h index cd339b88d5d4..644bdbf149ee 100644 --- a/arch/x86/include/asm/asm.h +++ b/arch/x86/include/asm/asm.h @@ -32,6 +32,7 @@ #define _ASM_ALIGN __ASM_SEL(.balign 4, .balign 8) #define _ASM_MOV __ASM_SIZE(mov) +#define _ASM_MOVABS __ASM_SEL(movl, movabsq) #define _ASM_INC __ASM_SIZE(inc) #define _ASM_DEC __ASM_SIZE(dec) #define _ASM_ADD __ASM_SIZE(add)