Received: by 2002:a25:86ce:0:0:0:0:0 with SMTP id y14csp286962ybm; Mon, 20 May 2019 16:21:36 -0700 (PDT) X-Google-Smtp-Source: APXvYqxkVnBN9NqDVJN3Qxxa8n3Zh5C/o9QK/o3lm3Dph123oiJR3pVBTVTc48/FDv3pEhr9bwoH X-Received: by 2002:a63:b90a:: with SMTP id z10mr37567529pge.257.1558394496859; Mon, 20 May 2019 16:21:36 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1558394496; cv=none; d=google.com; s=arc-20160816; b=VjD42NyUmNpGld+bPdBreid8U1k+keBD5Nel5VnTEULtCyBp7/BvKshsxzWeW4A73b dRTLvKWtvtxXLIrTTtnXgo3fs+dJVyv3OD9QzkXjE8KMjyTeftTGnmy1ssM4nZBUkQnk 3KY4REh/arDE4ulrWnDjZSIoOX8JozKv+gXb9gfmnon39ekBYVMNqlxvhKzg7svA0qA0 302SE3u3ev9hLKiuUdSkKwyHTCw/OOSm+9zeCZlW3eoOGFTdlnZJYFol/HmMHWd2vNTk +yS43g+dDdSUtGLx5XfEhDegUYqonBqGX21Gq9+6+lgJmBELqBkD8CYBnPXkXBy6zqI9 pSDQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=u/wnY+KqFixg56gyP1D7CB7HYKg32m+bqFWSsKBa+/I=; b=ZJSzm3WoVqAnsJV093x6gO+AOJQfvbooY5UDKNRWVhZe9Io3afj8XR8k0X0hi1oqdR uny7r04xC9Zl8aPnXrBMFet8xPQrnpRpn9YuiBydNFI1dV7zsAMP8LeLJQClqyBYrkOZ puggEazCakZXHfAMOimC6KokvAcR0QlaPY+eqmJNX+avg0kIA5Eqj+/yXrvOwysaqJ2s IfPnlOJb5Uw204tds0vLsngz89bBXrkOQIJCThnZeJo1iQL8r+sOzt4qcQDKVF3s31J/ bnQItBtKJGZz+OsbRc3hbBoQ6miQFRhMtHlLk+LMfMLsBYOqg5gYQxrguPOb7hV++t3M cmNg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@chromium.org header.s=google header.b=UjHBMQNV; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=chromium.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id f14si18050858plr.1.2019.05.20.16.21.22; Mon, 20 May 2019 16:21:36 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@chromium.org header.s=google header.b=UjHBMQNV; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=chromium.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727327AbfETXUJ (ORCPT + 99 others); Mon, 20 May 2019 19:20:09 -0400 Received: from mail-pg1-f194.google.com ([209.85.215.194]:33325 "EHLO mail-pg1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727307AbfETXUH (ORCPT ); Mon, 20 May 2019 19:20:07 -0400 Received: by mail-pg1-f194.google.com with SMTP id h17so7526016pgv.0 for ; Mon, 20 May 2019 16:20:07 -0700 (PDT) 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=u/wnY+KqFixg56gyP1D7CB7HYKg32m+bqFWSsKBa+/I=; b=UjHBMQNV86pahygu8pDM7RodmVPNoOF5hJ3fT3xbyH0dL1de2+tRNhk/hUmxNtJl1q +WhScnJIT/kY02tSuiJfwqhs0EkygcgfQQ2Hl2HZpixKp6zgVRzVT74gxZBzXqobqJWx rLMNTGXxUbQq9oPM7H/xYWCXBM//FHTX0NQ7g= 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=u/wnY+KqFixg56gyP1D7CB7HYKg32m+bqFWSsKBa+/I=; b=Jzac/yHbI+ePn6Svgv/L/bIUgGit0+AEVWJmVDU+U/qWE41T0PizKx6iu1JdOTN1qi lJXOs2JzSApTc3bKwvW7UhLo20GSsMjvIIoWV3Q0+KCux7BiLjvH96nK3AnpcDCM+AIJ T84S+T9rIQ03+UjukIIC3fCC3IVJdJwIIkBlOTdwxALdSm+erjIQo7rgFXbhBeNKla+7 zqkx6RUAjvYlWAMs8O5LurMeoIzpTaX8WtINZR7EqYQfhEUM7b8Eeno9unF+/tAZqQOP gz4H/ZfYmMkZB07knKgVvNSfRFYOvHisKLW7hI/zn5Vgvx5Fxi9thF/1ErXcjMQ+iL2F EnEQ== X-Gm-Message-State: APjAAAXryFyNXBzbdm9/nhTQ4ERWtlIenGcTNUZv/TmT9zB6gXQdk0lL FHCA5XpMDTDNqa6LkQeYYXat9A== X-Received: by 2002:a62:2f87:: with SMTP id v129mr9812794pfv.9.1558394407163; Mon, 20 May 2019 16:20:07 -0700 (PDT) Received: from skynet.sea.corp.google.com ([2620:0:1008:1100:c4b5:ec23:d87b:d6d3]) by smtp.gmail.com with ESMTPSA id h13sm19350861pgk.55.2019.05.20.16.20.06 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 20 May 2019 16:20:06 -0700 (PDT) From: Thomas Garnier To: kernel-hardening@lists.openwall.com Cc: kristen@linux.intel.com, Thomas Garnier , Thomas Gleixner , Ingo Molnar , Borislav Petkov , "H. Peter Anvin" , x86@kernel.org, Peter Zijlstra , Nadav Amit , Jann Horn , linux-kernel@vger.kernel.org Subject: [PATCH v7 03/12] x86: Add macro to get symbol address for PIE support Date: Mon, 20 May 2019 16:19:28 -0700 Message-Id: <20190520231948.49693-4-thgarnie@chromium.org> X-Mailer: git-send-email 2.21.0.1020.gf2820cf01a-goog In-Reply-To: <20190520231948.49693-1-thgarnie@chromium.org> References: <20190520231948.49693-1-thgarnie@chromium.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Thomas Garnier Add a new _ASM_MOVABS macro to fetch a symbol address. It will be used to 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 3ff577c0b102..3a686057e882 100644 --- a/arch/x86/include/asm/asm.h +++ b/arch/x86/include/asm/asm.h @@ -30,6 +30,7 @@ #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) -- 2.21.0.1020.gf2820cf01a-goog