Message ID | 20200225173933.74818-6-samitolvanen@google.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show
Return-Path: <SRS0=j0FS=4N=lists.infradead.org=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@kernel.org> 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 3E17F930 for <patchwork-linux-arm@patchwork.kernel.org>; Tue, 25 Feb 2020 17:41:30 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 08DE22082F for <patchwork-linux-arm@patchwork.kernel.org>; Tue, 25 Feb 2020 17:41:29 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="QIPOoxe+"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=google.com header.i=@google.com header.b="V+O8aB/k" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 08DE22082F Authentication-Results: mail.kernel.org; dmarc=fail (p=reject dis=none) header.from=google.com 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=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:To:From:Subject:References:Mime-Version :Message-Id:In-Reply-To:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=w0lyhXywkHjh6aqcailStNp6gpENbC+yN6amjPRYoz8=; b=QIPOoxe+HVZcQ+ YSfm8gkzEVH4mkvvu0SdORJV6vCvu0JrihyDE1khcwPa2qTjKiAwZnk9PDVh9RqZERK9Pp8gizEsV pgwMAQBdmjiX9SDvfLOqK1ghAa/yvLmT7649y2kvWNAl5qyiWZIJ1TAoGahTgz6onLo/U9UWxLtXP QEX3tSxvaHlcgwVJNSQaeWVfxZQ8aNLxRmeZaT9VWAfw6eQKTL6jrsUKABduVrP4QtWx83TEKXgFd FuzYrDeky+sIdkTLjRkIaweM/b807pEs2R3B+TYwHcxS+CXdywZeq0lC9i0tQyvlDULYMbxgDiupU mOqufJdA0uSVgjET5qtA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1j6eD2-0003qu-W0; Tue, 25 Feb 2020 17:41:29 +0000 Received: from mail-pf1-x44a.google.com ([2607:f8b0:4864:20::44a]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1j6eBj-0001W1-0a for linux-arm-kernel@lists.infradead.org; Tue, 25 Feb 2020 17:40:09 +0000 Received: by mail-pf1-x44a.google.com with SMTP id e62so9725444pfh.14 for <linux-arm-kernel@lists.infradead.org>; Tue, 25 Feb 2020 09:40:04 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=jVKqEF9zEsFZTQz5E/s7PAlXyZsbPgu1MND2Fom4HAc=; b=V+O8aB/kkUO8xqMJE51PIQtZsppsJth+56C9mzqs3rHEUWYqsaBskb5C8HPCIPzcS0 KLPMyT4P8jAjhfw3HtS6Zd2Bb5U4/swuVVbMREAIk3jxj7rYDCvJV69tJYOtu8AUZqQf z2JnJ+dqNTgOx86Zx5X0AKcPG1QBderHLqB7MhI+u/50ASt0GTaqJITfIYTKWJX1nDlb MH5KYE7gNzyqd1gGbRsR7gUtF6BdQMWSviF1MHJ423kF5K89MmBFjiBcyN5dmGhPgq/S lhVwlyp4UFisGTJT9QGrdtvE2NZMU8DEbTuhfkbOuZMSqCeD2QDwyktTVpa+TfqPqQwZ EwDQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=jVKqEF9zEsFZTQz5E/s7PAlXyZsbPgu1MND2Fom4HAc=; b=JY9T+NMkcy1fKFksOC3pIm8DlgLHPV/WFOveq8XbiX1CieyNaMCADB2lwdElPQQm2G 9Oz0eL2g0S040jfH3v9E6d7/9XunzA4XrRwxe5VjHDoZTcolOGSM9EHnbkFm7yM9ldDQ zwHtiplXxx8ksRfwB4pknQVRVkLtouqyl9AcL5eqUwZPLod0fsbiX3pYjcoj/rg0qt4F OemG8+iQaitTceO7nwmYzpgKGg2xr4g+paXl19WPKQHK1VRo2TUOKK2wEtiC5A7HRLtR l4D90SPSdT7davBPtoEw6JRiHBINGLTj/EdZUbU2/JMOxPwg0Dl8LirEbGxiGHWRCIry 0H8g== X-Gm-Message-State: APjAAAVIZezhePsFxOTWacY30B8Uq5jSoCoeGaCSCtbJ6fTiuPW2mDSF jeNiKZsvqXKzY4aC72wmSrCEoW9SW037dFUbTV8= X-Google-Smtp-Source: APXvYqx9O9w9/ihBrjsk0SyFNaEZNd7Lr04/IUqXXK96nskmhLx3/ywlCS6EAR4FJpxoJjOrSsMx/Wn5T6BL4+LTzRE= X-Received: by 2002:a63:e04a:: with SMTP id n10mr57879618pgj.341.1582652401052; Tue, 25 Feb 2020 09:40:01 -0800 (PST) Date: Tue, 25 Feb 2020 09:39:26 -0800 In-Reply-To: <20200225173933.74818-1-samitolvanen@google.com> Message-Id: <20200225173933.74818-6-samitolvanen@google.com> Mime-Version: 1.0 References: <20191018161033.261971-1-samitolvanen@google.com> <20200225173933.74818-1-samitolvanen@google.com> X-Mailer: git-send-email 2.25.0.265.gbab2e86ba0-goog Subject: [PATCH v9 05/12] arm64: reserve x18 from general allocation with SCS From: Sami Tolvanen <samitolvanen@google.com> To: Will Deacon <will@kernel.org>, Catalin Marinas <catalin.marinas@arm.com>, James Morse <james.morse@arm.com>, Steven Rostedt <rostedt@goodmis.org>, Masami Hiramatsu <mhiramat@kernel.org>, Ard Biesheuvel <ard.biesheuvel@linaro.org>, Mark Rutland <mark.rutland@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200225_094007_783422_4EE514CA X-CRM114-Status: UNSURE ( 9.08 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -7.7 (-------) X-Spam-Report: SpamAssassin version 3.4.3 on bombadil.infradead.org summary: Content analysis details: (-7.7 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [2607:f8b0:4864:20:0:0:0:44a listed in] [list.dnswl.org] -7.5 USER_IN_DEF_DKIM_WL From: address is in the default DKIM white-list 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_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.0 DKIMWL_WL_MED DKIMwl.org - Medium sender X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: <linux-arm-kernel.lists.infradead.org> List-Unsubscribe: <http://lists.infradead.org/mailman/options/linux-arm-kernel>, <mailto:linux-arm-kernel-request@lists.infradead.org?subject=unsubscribe> List-Archive: <http://lists.infradead.org/pipermail/linux-arm-kernel/> List-Post: <mailto:linux-arm-kernel@lists.infradead.org> List-Help: <mailto:linux-arm-kernel-request@lists.infradead.org?subject=help> List-Subscribe: <http://lists.infradead.org/mailman/listinfo/linux-arm-kernel>, <mailto:linux-arm-kernel-request@lists.infradead.org?subject=subscribe> Cc: Kees Cook <keescook@chromium.org>, Jann Horn <jannh@google.com>, Masahiro Yamada <yamada.masahiro@socionext.com>, Marc Zyngier <maz@kernel.org>, kernel-hardening@lists.openwall.com, Nick Desaulniers <ndesaulniers@google.com>, linux-kernel@vger.kernel.org, Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>, clang-built-linux@googlegroups.com, Sami Tolvanen <samitolvanen@google.com>, Laura Abbott <labbott@redhat.com>, Dave Martin <Dave.Martin@arm.com>, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" <linux-arm-kernel-bounces@lists.infradead.org> Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org |
Series |
add support for Clang's Shadow Call Stack
|
expand
|
diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile index dca1a97751ab..ab26b448faa9 100644 --- a/arch/arm64/Makefile +++ b/arch/arm64/Makefile @@ -65,6 +65,10 @@ stack_protector_prepare: prepare0 include/generated/asm-offsets.h)) endif +ifeq ($(CONFIG_SHADOW_CALL_STACK), y) +KBUILD_CFLAGS += -ffixed-x18 +endif + ifeq ($(CONFIG_CPU_BIG_ENDIAN), y) KBUILD_CPPFLAGS += -mbig-endian CHECKFLAGS += -D__AARCH64EB__