From patchwork Mon Oct 1 17:58:27 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mark Salyzyn X-Patchwork-Id: 10622559 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id BD4AE15A7 for ; Mon, 1 Oct 2018 18:20:47 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B0F0D28174 for ; Mon, 1 Oct 2018 18:20:47 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id A32D92843C; Mon, 1 Oct 2018 18:20:47 +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=-2.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 12B5928174 for ; Mon, 1 Oct 2018 18:20:47 +0000 (UTC) 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: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=Oj5SyefQO5U/geJh15EqPDlPd5QrU6pU4NsyCEsRoGg=; b=qmzZ/lZlbSy2hI xc8bL6YLeH2/e+zp1Ylk2LRkMfm4WFVBgLumXqjryN2Nq3theatbI4b7c8mq848NVBLlSSGDTPBc4 P9Kdjqcs2Ds7obvBav44CaALgAZ5OnHhd6wk1q2Kl9ZjBDylG+WA6hndpEy2OxV6qyMDFsa5Q0y87 gTCRyfA8odoEJIwmTs5hr8tWT5ehymgiIBCYDof3apkbZvjzycO4lluItTIGW7GNZ1R2B9cKwi1PS XcYeLXT3Cd1xRscoK6gryzjNvOr9TiSI68BU/NiLbqLW2CSTCn/OI6aImR/bvVUhuW6q+wk7frIfc l18o7PNitl4GQANi6A9g==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1g72o8-0002Tz-LW; Mon, 01 Oct 2018 18:20:36 +0000 Received: from casper.infradead.org ([2001:8b0:10b:1236::1]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1g72jt-0007Xz-Cz for linux-arm-kernel@bombadil.infradead.org; Mon, 01 Oct 2018 18:16:13 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To: Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=COOftGCHS9Nvs+MaqTej8LtTQeX/KosYEseJ+G3aMxk=; b=qQ5Rt5YHbEaCjZ19H2h8IBLcSe 2p6DTBR72MJH7IC9xWiG6DPXf9e5omtmEOEsFgu60F62QZIBeByzqp82LkNUhM490joVwfCSnr+AJ lfj0xwS2kU190sDV8t8YI/jMunJ5MmwNUZOanivJxxrqhqK4FGq7OQ+pnK7SRcX8CMBHb8/laSrFh hhwd2RYFcWzYJ9CjKxHe9DWAJF1dSZ8iZaydBVle97PeYIcztX8xWs+R5bKJL+qFL6w1trsJctp3I FiAdvTN/DCO0IPOMfw9Dqz7D4CFwwTuwR1CsFm3NVPK3aRr6bj8QXX/OKgAe0EfwNv1gwWMZh13v1 l2oO2rSA==; Received: from mail-pf1-x441.google.com ([2607:f8b0:4864:20::441]) by casper.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1g72Ve-0005uj-5u for linux-arm-kernel@lists.infradead.org; Mon, 01 Oct 2018 18:01:32 +0000 Received: by mail-pf1-x441.google.com with SMTP id p12-v6so9809320pfh.2 for ; Mon, 01 Oct 2018 11:01:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=android.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=COOftGCHS9Nvs+MaqTej8LtTQeX/KosYEseJ+G3aMxk=; b=VJ3okr6xDxbdqaWXg0DnrCXLtCHEZeyVEc6y4NyoyhlqO5G9hRR0ZVoJ5umlmnXrMd BOVgud2mB+BgRgOJlkND20wwgR9A7kZxDClmbz2CYUv6ANrdlBAoWU+IQgrB3gpJ/Ruw 1WnrBzGru8Hn2gVQbmjKNLDl75ALypKeeIFgj32TiAY77ksbIn68jwlShldUI4aokWu2 Y/GyeRlaeGfF2eF4CMerlB1ORPnxS/r+GjrnmZIKuv/VqUWyZKMv0HFEdXvyZoPLzg7q Y/YzdQMk7lniSKThGxKOhs66u4c9jWweidRMLHE2IqnFGZMJqVZAYSC3MAexe7aVsFvv Cr4A== 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=COOftGCHS9Nvs+MaqTej8LtTQeX/KosYEseJ+G3aMxk=; b=p6f897wWQDSM9X97HrgI7FHJCnEwEIZO/E551Bvlhb0goxKKqyE6bDFJ6s7zpEfwIK xq9IuRmFIJ0Z7hUtmR7upcB3duHCDQanB/aRBByQGvtqCxX0gOHPMOnfFTrYLBwMHfzY CT/JjLXAjhPUPtLWRNHVpONXUWo24uN8sK0XgWgDCjffu1TouS+BpwIMXrpMF1thqdOS t5bRE0N7eeuXaTHJoiRlmmujhDTT6u51tAOL3rt8oZ7JuanhRS3GBHl3NQG0MIluI3hH e5okwBWGqQadxvRYokZdcE1gMzB1YZVc7VqPDkhIKCtbuEa0SxFot9shfUzcoW1hqpXR ABAg== X-Gm-Message-State: ABuFfohHnYou2psZAfAhe9y1vEzlBhvIuuJ6GJ0V5QwWkWnIh4kBMgCQ A0ioBV7P+GcWCsnXLbVHIRQBbw== X-Google-Smtp-Source: ACcGV62ItB8b5E04dZz0KZrIsV786uyK4nI8Tf8ReNaEq9mA9JbIa80YsG0FYTHh+BCfIzMVwyDJFA== X-Received: by 2002:a63:9612:: with SMTP id c18-v6mr10979192pge.21.1538416878491; Mon, 01 Oct 2018 11:01:18 -0700 (PDT) Received: from nebulus.mtv.corp.google.com ([2620:0:1000:1612:b4fb:6752:f21f:3502]) by smtp.gmail.com with ESMTPSA id d186-v6sm24469261pfg.173.2018.10.01.11.01.17 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 01 Oct 2018 11:01:18 -0700 (PDT) From: Mark Salyzyn To: linux-kernel@vger.kernel.org Subject: RESEND [PATCH v5 07/12] arm: vdso: disable profiling Date: Mon, 1 Oct 2018 10:58:27 -0700 Message-Id: <20181001175845.168430-8-salyzyn@android.com> X-Mailer: git-send-email 2.19.0.605.g01d371f741-goog In-Reply-To: <20181001175845.168430-1-salyzyn@android.com> References: <20181001175845.168430-1-salyzyn@android.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20181001_190130_286416_A55B2EFB X-CRM114-Status: GOOD ( 18.49 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Kate Stewart , Catalin Marinas , Will Deacon , Mark Salyzyn , Russell King , linux-arm-kernel@lists.infradead.org, Andy Gross , Laura Abbott , Kees Cook , Kevin Brodsky , John Stultz , Thomas Gleixner , Dmitry Vyukov , Ard Biesheuvel , Dmitry Safonov , android-kernel@android.com, Jeremy Linton , Andy Lutomirski , James Morse , Andrew Pinski , Greg Kroah-Hartman , Andrew Morton Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Take an effort to recode the arm64 vdso code from assembler to C previously submitted by Andrew Pinski , rework it for use in both arm and arm64, overlapping any optimizations for each architecture. But instead of landing it in arm64, land the result into lib/vdso and unify both implementations to simplify future maintenance. Make sure kasan and ubsan profiling, and kcov instrumentation, is turned off for VDSO code. Signed-off-by: Mark Salyzyn Tested-by: Mark Salyzyn Cc: James Morse Cc: Russell King Cc: Catalin Marinas Cc: Will Deacon Cc: Andy Lutomirski Cc: Dmitry Safonov Cc: John Stultz Cc: Mark Rutland Cc: Laura Abbott Cc: Kees Cook Cc: Ard Biesheuvel Cc: Andy Gross Cc: Kevin Brodsky Cc: Andrew Pinski Cc: Thomas Gleixner Cc: linux-kernel@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: Jeremy Linton Cc: android-kernel@android.com v2: - Added this to the split up of first CL, based on comments in second CL v4: - update commit message to reflect overall reasoning v5: - rebase --- arch/arm/vdso/Makefile | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/arch/arm/vdso/Makefile b/arch/arm/vdso/Makefile index f4efff9d3afb..1125e3fb8006 100644 --- a/arch/arm/vdso/Makefile +++ b/arch/arm/vdso/Makefile @@ -27,8 +27,11 @@ CFLAGS_REMOVE_vdso.o = -pg CFLAGS_REMOVE_vgettimeofday.o = -pg -Os CFLAGS_vgettimeofday.o = -O2 -# Disable gcov profiling for VDSO code +# Disable gcov, kasan, ubsan and kcov profiling for VDSO code GCOV_PROFILE := n +KASAN_SANITIZE := n +UBSAN_SANITIZE := n +KCOV_INSTRUMENT := n # Prevents link failures: __sanitizer_cov_trace_pc() is not linked in. KCOV_INSTRUMENT := n