Message ID | 20200416161245.148813-6-samitolvanen@google.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show
Return-Path: <SRS0=ZVhp=6A=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 963BA186E for <patchwork-linux-arm@patchwork.kernel.org>; Thu, 16 Apr 2020 16:14:42 +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 4DC4320771 for <patchwork-linux-arm@patchwork.kernel.org>; Thu, 16 Apr 2020 16:14:42 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="Z7AA3orL"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=google.com header.i=@google.com header.b="aGvQz7rp" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4DC4320771 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=e7U6iO+Zd7IMA31gY7TwwRnQrAyRbjRvmuJGJ7cGFiI=; b=Z7AA3orLh1nggC 1A1ih/YHDtqfisa6mi0bg+72VIR40oBPMMi3TUTVaURGHX/olLOalF5c26F/iqpRZ3QGygZGjF0vH sH4e2CH04bZJ0iEiPWeiZp0fg/lumehlRVjhv31hPgG1hmGlHODqiYFgkJAFYF7WQUQliEuMf/96R craxyGjJ4ZYCTZUAVIDUvHojpBpV87iGYsgyihScY8G2/Slwu0Tm1wCMaqyNKlnT9mZXdH2/VXsCs 0qi84af0+6uGNh6V0un/9kiHiri8MIENUYmjshnourcXmfQowIgC1X/XHt7ZDAbvs3PYU8lBGsqPg EW37Ubqx2hnCgAihED4g==; 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 1jP79v-0004w7-8D; Thu, 16 Apr 2020 16:14:35 +0000 Received: from mail-pf1-x449.google.com ([2607:f8b0:4864:20::449]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jP78S-0003fj-RK for linux-arm-kernel@lists.infradead.org; Thu, 16 Apr 2020 16:13:06 +0000 Received: by mail-pf1-x449.google.com with SMTP id d16so3438160pfo.15 for <linux-arm-kernel@lists.infradead.org>; Thu, 16 Apr 2020 09:13:02 -0700 (PDT) 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=jhbZSy8N7pmIKGLCoqfuWjSb1n91/ddT1S0YkqMO/sE=; b=aGvQz7rpj1gmlNot9DGOyVfFExMSMhcz9FOTIfJbSo6J2eaS4Q9EvaTX97Nd1b7Is2 Bi/uzVXKD8nyy0gdnni7g4rNQaOUONSHCDbXi1JxVmjuSDUSR9C3hyS6ONRIgdqe5A7o KRFqaiwPkP7F+S6duXdhRB2xtAeRc18dKkptU+TW+VkoS72brWS3gLP1uLJyWKMa1apq 6GOIGu4r7BbAhSSQiEldxlhfcpZpwS7Ujq6MBf2bUhjBlcqdRF1nhMsPi7t9S8NV1SxC 8eUuHSdrmpT1WtCHfSF0mYe/M0/QauT7xIFnKzHxZWJuc08m/q50qVVerwI3cu0X+K2t 149A== 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=jhbZSy8N7pmIKGLCoqfuWjSb1n91/ddT1S0YkqMO/sE=; b=d2lbLwTLpiwltHGJGAGniabBuZVlU+OxsI5V7w2UZWxDsYcbEKMq0chdVPoeOimHBV xnlIly0b2v8a8VC3sKGUT1MfJxWVpbiENW7ZgDG4zReu7aHVQJM3OC5zUz/Bn46rjt1P FZPPExsR7zb7b62hZl9+qN9boBYfy5EacNWhzIsWEwPd5ZVBRq23S2I9PymXDJJI25gc 60d5Pdb+pBgXVLWlax+YrgFoy3lZP7jskjKCfPRcnmqiy08F4m+TPliuPK4VFjf7s+q3 BcGM4gAC52RNipV8gDcYcEYeoqOh87KnF2YZa5RogU8GwFqFm4/9hrt0vVpLOt8Wkhlz 3rtw== X-Gm-Message-State: AGi0Pua2bYRthcak7c1MzJKSKJ2LkGgEnt5EwbF5Pz1wqbL7gMNHC2DZ HzEafyKcwYNzgt56l3ew+PeHwjwmV92hU2cKwac= X-Google-Smtp-Source: APiQypL8a8EcwgkAdr2i3smmJxOyKHY3RiUFRcgoCxLBedFlxJV/kyUEcY4a7Jl+ITX16xXqRHQjeNwR/jbT4qE4WrI= X-Received: by 2002:a65:68c7:: with SMTP id k7mr33098346pgt.248.1587053582058; Thu, 16 Apr 2020 09:13:02 -0700 (PDT) Date: Thu, 16 Apr 2020 09:12:38 -0700 In-Reply-To: <20200416161245.148813-1-samitolvanen@google.com> Message-Id: <20200416161245.148813-6-samitolvanen@google.com> Mime-Version: 1.0 References: <20191018161033.261971-1-samitolvanen@google.com> <20200416161245.148813-1-samitolvanen@google.com> X-Mailer: git-send-email 2.26.1.301.g55bc3eb7cb9-goog Subject: [PATCH v11 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>, Ard Biesheuvel <ard.biesheuvel@linaro.org>, Mark Rutland <mark.rutland@arm.com>, Masahiro Yamada <masahiroy@kernel.org>, Michal Marek <michal.lkml@markovi.net>, Ingo Molnar <mingo@redhat.com>, Peter Zijlstra <peterz@infradead.org>, Juri Lelli <juri.lelli@redhat.com>, Vincent Guittot <vincent.guittot@linaro.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200416_091304_894318_40C6DA28 X-CRM114-Status: UNSURE ( 8.74 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -7.7 (-------) X-Spam-Report: SpamAssassin version 3.4.4 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:f8b0:4864:20:0:0:0:449 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 -7.5 USER_IN_DEF_DKIM_WL From: address is in the default DKIM white-list 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -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 -0.0 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>, 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>, Masami Hiramatsu <mhiramat@kernel.org>, Sami Tolvanen <samitolvanen@google.com>, clang-built-linux@googlegroups.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 85e4149cc5d5..409a6c1be8cc 100644 --- a/arch/arm64/Makefile +++ b/arch/arm64/Makefile @@ -81,6 +81,10 @@ endif KBUILD_CFLAGS += $(branch-prot-flags-y) +ifeq ($(CONFIG_SHADOW_CALL_STACK), y) +KBUILD_CFLAGS += -ffixed-x18 +endif + ifeq ($(CONFIG_CPU_BIG_ENDIAN), y) KBUILD_CPPFLAGS += -mbig-endian CHECKFLAGS += -D__AARCH64EB__