From patchwork Fri Aug 21 19:42:42 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kees Cook X-Patchwork-Id: 11730383 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 CA7C9618 for ; Fri, 21 Aug 2020 19:46:26 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id A54242072D for ; Fri, 21 Aug 2020 19:46:26 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="kEvJOqKO"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="i/HEp8a1" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A54242072D Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=chromium.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=v0HyhcCW0YjFovL3PrzZYtmtlTc2FFQ/psykID48Fs0=; b=kEvJOqKOoRsggpzin54GmAxal omI3rbFIEoe3K0mDMdOS1xzfNvNHj2BnlSM7wE9164tVhd5xwYEbMegoqNSGMcdyjy2ydJu2Lhu0b Ub6pxNfWOuDATmPbrUCpj4cIhsqCKgk2oWWcyPdO2jVSZwkrUi+yupUZ4uWCQnhbtXdmfhl5J1plw /xPtW4hMCMQeSoyX1nS6QD9bnZpwEU6iEzqVrxzak7WI4iGnzRZhHYpIEqnwe56UnY5S2L6qcKOoD jukPK+wIWLcaDXoa4zs13fYtev9R6a9GdQ0daEWqvLPNVEw0v5tSqEpjfmRiWm8KWDfiMMXsBsWla 6eu1RohDA==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1k9Cxi-0006Xv-0D; Fri, 21 Aug 2020 19:44:30 +0000 Received: from mail-pj1-x1043.google.com ([2607:f8b0:4864:20::1043]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1k9Cxc-0006T3-51 for linux-arm-kernel@lists.infradead.org; Fri, 21 Aug 2020 19:44:27 +0000 Received: by mail-pj1-x1043.google.com with SMTP id ds1so1261307pjb.1 for ; Fri, 21 Aug 2020 12:44:23 -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=7KJKUmMIwELFiu+Jhx3PR/flYgx4mAaM57h538oQIMM=; b=i/HEp8a1E4h+pDbbs57HZpbPpxh1OsfRH2Yd/8W3bgSphxcIhvxHJMoOUFbJ6b/Lo5 9aJS4qOv+ZRLhprPhhQyVLMufErKaJZg4b7i1PWzbmYDeM8hm39fYJLK/IT+cxpFTdWz TuXn2CWgQSDT0wuxFJZoOlwQ2qTgwxpZ9CNOg= 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=7KJKUmMIwELFiu+Jhx3PR/flYgx4mAaM57h538oQIMM=; b=cx7466vg29UstLFjhWKiQYcN9az2VQy4zGKSX9rhDRCRrG0fR4tNE0/+3q9tDdaOdO hLEVEHqIBTYReVcqfmwdotcNFfSaGwjEeeMxfHe1BWEbx07sY/cdIpYBn1m10wEixAGX PJZGPWe99cfTkjFu3VvfBtNqyu41rqWSq6sr7wPTFblITPGub0e9t2LZF+UScV528oGF TA1hUchL4LO7CqexuYeWJte4eA0sj0UZN6c/fzUo1S7ElPI7buYbcIF8ghZ+TsMc82Xk UxzW2BKyQWQU+GtmJsf9MkI3DIQonyumOPx42RWfjMzid5By3IStkqe008U7FWF4pmKV qR/w== X-Gm-Message-State: AOAM530zq01h/fHGr/IdAvu+unQKya62Rgk8kqHLsbWJiFmk3iEPAhh4 54P+eQfgb0KyApOnGiJatCD1Ig== X-Google-Smtp-Source: ABdhPJxhYfHQFi07yXAb+83c2N6Go68l40rd8GM9whIQP8616kjUIICp3ghwUq5gOnKTYPsXxrBOoA== X-Received: by 2002:a17:90a:4f45:: with SMTP id w5mr3754850pjl.11.1598039062148; Fri, 21 Aug 2020 12:44:22 -0700 (PDT) Received: from www.outflux.net (smtp.outflux.net. [198.145.64.163]) by smtp.gmail.com with ESMTPSA id b9sm3354866pft.98.2020.08.21.12.44.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 21 Aug 2020 12:44:21 -0700 (PDT) From: Kees Cook To: Ingo Molnar Subject: [PATCH v6 01/29] vmlinux.lds.h: Create COMMON_DISCARDS Date: Fri, 21 Aug 2020 12:42:42 -0700 Message-Id: <20200821194310.3089815-2-keescook@chromium.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200821194310.3089815-1-keescook@chromium.org> References: <20200821194310.3089815-1-keescook@chromium.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200821_154424_237714_5C5B6E57 X-CRM114-Status: GOOD ( 14.12 ) X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.infradead.org summary: Content analysis details: (-0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [2607:f8b0:4864:20:0:0:0:1043 listed in] [list.dnswl.org] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.0 DKIMWL_WL_HIGH DKIMwl.org - Whitelisted High sender X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , linux-arch@vger.kernel.org, linux-efi@vger.kernel.org, Kees Cook , Arnd Bergmann , Catalin Marinas , Masahiro Yamada , x86@kernel.org, Nick Desaulniers , Russell King , linux-kernel@vger.kernel.org, clang-built-linux@googlegroups.com, Arvind Sankar , Ingo Molnar , James Morse , Nathan Chancellor , Borislav Petkov , Peter Collingbourne , Ard Biesheuvel , linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Collect the common DISCARD sections for architectures that need more specialized discard control than what the standard DISCARDS section provides. Signed-off-by: Kees Cook --- include/asm-generic/vmlinux.lds.h | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index 7616ff0b96ec..184b23d62784 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -954,13 +954,16 @@ EXIT_DATA #endif +#define COMMON_DISCARDS \ + *(.discard) \ + *(.discard.*) \ + *(.modinfo) + #define DISCARDS \ /DISCARD/ : { \ EXIT_DISCARDS \ EXIT_CALL \ - *(.discard) \ - *(.discard.*) \ - *(.modinfo) \ + COMMON_DISCARDS \ } /**