From patchwork Wed Nov 15 21:34:27 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sami Tolvanen X-Patchwork-Id: 10060355 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id BF43E60231 for ; Wed, 15 Nov 2017 21:38:15 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id AEE362A31C for ; Wed, 15 Nov 2017 21:38:15 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id A39122A31E; Wed, 15 Nov 2017 21:38:15 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.3 required=2.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED, RCVD_IN_DNSWL_HI, RCVD_IN_SORBS_SPAM, T_DKIM_INVALID autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 645772A31C for ; Wed, 15 Nov 2017 21:38:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932582AbdKOVgB (ORCPT ); Wed, 15 Nov 2017 16:36:01 -0500 Received: from mail-it0-f67.google.com ([209.85.214.67]:40871 "EHLO mail-it0-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759450AbdKOVfN (ORCPT ); Wed, 15 Nov 2017 16:35:13 -0500 Received: by mail-it0-f67.google.com with SMTP id 72so3480400itl.5 for ; Wed, 15 Nov 2017 13:35:12 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=GfXdJL96beDafyXaRME+sTc9mBQiGtyGahNhhgmTWGo=; b=Akh/767MIyoPZjtlmr3Qm2oxsXwqnFcWHxBAq2K4EkgkV0lxD0uO4zM1XRIeg5lqs2 yrlD+VoqvxpQbNRjVBYJDFZWfuPgN6wpM+MGtaz7BmQIY+jh1DTQ8GEsa4XchB83lI/N jl5Nz699I9N4PwVt/RwlEMueo8kKNDTOdROKyhanD48Skosreluj41THOB22iD9ZImHZ QL2YSAVmjpQXWz7B2l7d6B4mzpm9HohBsaYdmBDWWYGUSKDPayhRIR4/x7UzIguctFYV d6hyy5kk1t0E8tpIN+3S37vHBdAf6ikOmyySLa04q+ZD2KPkwT5HH8vku3sfAA/8PQHr nSlg== 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; bh=GfXdJL96beDafyXaRME+sTc9mBQiGtyGahNhhgmTWGo=; b=n0G+CqYE29ueW1nNrcpx/jw/stY5EFbQ6XO7jNHFKhdtSywiAc6Ly4+vzgywfTDPBY tDvcYTHre8uCEewXHa8PIFSjmuySRu4f0il9thnd7I26uNL/73wUk81EbZjTTP1ZYzQm lIB3VAwv46R7h0RO0uA5+unhsX0A6ZVXmhqiLLhPocvLeWe/Tsb6GUW/rVXqCNFt/obo A+tMqzp7pstW++yweIdoT6jhOfvuwGM1u6ONW2+Vd0T+mqgVz1kj24zJkPtWtF7s/Aej U7gp5YR6M/yWmcKmCdahgBpzcASTaTXLYD5VSf8ggttxY8MghqeBUACVtV9hQmuCMbvc 2gbQ== X-Gm-Message-State: AJaThX6VAUmWDGsPPCvtJR5QynQxfeQm4k0HiHwOIUW7qNuOatrC/p+w Zud9UnnknLGb3l40zHMFe6EOqg== X-Google-Smtp-Source: AGs4zMZi5jjfqYaBfWlY+QdBSD5bK26656zzsEPRYTncWveEemuutbR5qlHWJM1pfpwblqVKGJhR2Q== X-Received: by 10.36.105.65 with SMTP id e62mr23258939itc.6.1510781712054; Wed, 15 Nov 2017 13:35:12 -0800 (PST) Received: from samitolvanen.mtv.corp.google.com ([100.98.112.14]) by smtp.gmail.com with ESMTPSA id 68sm9735197iov.2.2017.11.15.13.35.10 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 15 Nov 2017 13:35:11 -0800 (PST) From: Sami Tolvanen To: Alex Matveev , Andi Kleen , Ard Biesheuvel , Greg Hackmann , Kees Cook , linux-arm-kernel@lists.infradead.org, linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org, Mark Rutland , Masahiro Yamada , Maxim Kuvyrkov , Michal Marek , Nick Desaulniers , Yury Norov , Matthias Kaehlcke Cc: Sami Tolvanen Subject: [PATCH v2 17/18] arm64: disable RANDOMIZE_MODULE_REGION_FULL with LTO_CLANG Date: Wed, 15 Nov 2017 13:34:27 -0800 Message-Id: <20171115213428.22559-18-samitolvanen@google.com> X-Mailer: git-send-email 2.15.0.448.gf294e3d99a-goog In-Reply-To: <20171115213428.22559-1-samitolvanen@google.com> References: <20171115213428.22559-1-samitolvanen@google.com> Sender: linux-kbuild-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kbuild@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP RANDOMIZE_MODULE_REGION_FULL results in "overflow in relocation type 275" when loading a module linked with GNU gold. As a workaround, disable when LTO_CLANG is selected. Signed-off-by: Sami Tolvanen --- arch/arm64/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index ba6aab55d464..3a70f763e18a 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -1064,7 +1064,7 @@ config RANDOMIZE_BASE config RANDOMIZE_MODULE_REGION_FULL bool "Randomize the module region independently from the core kernel" - depends on RANDOMIZE_BASE + depends on RANDOMIZE_BASE && !LTO_CLANG default y help Randomizes the location of the module region without considering the