From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6CE6FCA9EA0 for ; Fri, 25 Oct 2019 19:34:16 +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 33B1D21D81 for ; Fri, 25 Oct 2019 19:34:16 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="bIV+bR8e" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 33B1D21D81 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arndb.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.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:Subject:Message-ID:Date:From: In-Reply-To:References:MIME-Version:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=l8iEpwcUiYEbAn0v3DrTY0iwaQV/egF+zN/7Cd20vfs=; b=bIV+bR8e0IM1g7 be919P5opjNqiPlYUxRrvg0VaJgwz0kveyylBH0F2qXKeXJRZ6m8uvHxKoBtZmeq6TzXt30dUAKFi gRjaUcP4JbPhEhbEv9hw3bXhfvgtiZf7Zk9t05jkI38nH2zLr5WNk/LzWDJTZe6gO47A+cJP995Gf nugJMDEjnmT2Y7JqTDPu5ecNLbe12RfH1gHyPQR6vw/JlGdLFs/skq22Fy6wAMFSq7SC6Bi391rXB fMlJ4TIElGhVgWCc3zpznBig3egw3wpsDc0vG0FOl2PNsoAVZTMogbbuw37vln6ehoktDmEVmD4V9 eObxUiJ2QB1Amb3slNlw==; 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 1iO5Lj-0004qR-4R; Fri, 25 Oct 2019 19:34:15 +0000 Received: from mout.kundenserver.de ([212.227.126.130]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1iO5Lg-0004pr-BQ for linux-arm-kernel@lists.infradead.org; Fri, 25 Oct 2019 19:34:13 +0000 Received: from mail-qt1-f180.google.com ([209.85.160.180]) by mrelayeu.kundenserver.de (mreue012 [212.227.15.129]) with ESMTPSA (Nemesis) id 1N5CMP-1hyc2H2OZR-0118E5 for ; Fri, 25 Oct 2019 21:34:08 +0200 Received: by mail-qt1-f180.google.com with SMTP id o49so4959256qta.7 for ; Fri, 25 Oct 2019 12:34:08 -0700 (PDT) X-Gm-Message-State: APjAAAW3e7NT2OLnhBxWvHNVjCh+0GccQoq8b0Y/nNTzXJUdjFXfqU8T slC5cGxfJER2wKFaW/CFE7zQrjY0mqhLncU4Wx0= X-Google-Smtp-Source: APXvYqxqRUdDkDGDboIREYAfMa9BcSiD+FbyHPst+CUWY+pnkxhYEyvJtms/zAXH68dfps3uZH2BHpzrqzNQtkt1Jus= X-Received: by 2002:a0c:9083:: with SMTP id p3mr3905167qvp.210.1572032047231; Fri, 25 Oct 2019 12:34:07 -0700 (PDT) MIME-Version: 1.0 References: <20191025191735.GE25745@shell.armlinux.org.uk> <20191025192843.GF25745@shell.armlinux.org.uk> In-Reply-To: <20191025192843.GF25745@shell.armlinux.org.uk> From: Arnd Bergmann Date: Fri, 25 Oct 2019 21:33:51 +0200 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: arm version of generic VDSO? To: Russell King - ARM Linux admin X-Provags-ID: V03:K1:356WUv5zibfNrY2quSGZqtkSFYT/f10bNVyEjQLky3QFrV7vCdo 2YXH0CQUrZVVSe+WSnGJWaVwAKAXX4aBTrcMOtcq9wgBSDeGRry53TPNoXtYuKuhWZgv3Xj JulMG7eNJ4RaomxQq+6ebgEIvCX3HeROprxIv2aqqrBs5xTipeG5RAKJz8Zg6RW+109GYFd czE9hnYx+0Yju8/8RB0QQ== X-UI-Out-Filterresults: notjunk:1;V03:K0:FIYsdbP4qhw=:gS2w6bdokHcjROYdLcvXIS 3HxufsSamp9vzcseUvqXmJmDrLiOyOueOHqc/Lio5AL9tgNJHzXJWvxqu+EAAGeUSGQnI+SRP 9SILdqcaY3iL3kxBmpNVqVtcj9yIuXLysVsoLu47Cxm3WDb6qClB3jhbRB6P29ab6Nimcl/l3 bsqn9O1HjmmCC64zIdfqSeDCEzCpTLeC3YCWB28uaYIDM9nJscGfYLvMSSC37tejYFMRjQeYM XJjeBdcL28uFLFtR9uzSU1L4dWrJJ13PewYrVZ1RP0q6jrOMC8wLJ+9exHZdQ8CdPH3rpoHEy wbA5h6CWlAFxhRWymhsgPDUFCW13zx5120DiBrZpK9KPDUhCqucNdvvE8LDIAG6axLNw7xa7B EMeOOJ95bg7L18aCLZAnA0l3BUQ6sRYAedMSimYNy+8c2jBaG3HeCDSSKTqFwlUW5q3ybHgZY /mKEUwzF68Vdzta32npCZ7IMAEyERPEUyFkqP13kSSQkoRbvFgBgc1K78IaiysoIYz7EbN6il MWzkOpGVnl1KyDMKBP2fvQew7I/CWpIpaOr3DNO9d4dJkDnI9+McbggvQH7ndg8efurvN1d34 HqXQmCmy1jWhufngrlv6e0/rdeF7wk6XGdhT3foLjZu5cCL5PNbFPwVSKQ3MPchcaIUU1ZiGP LK1uwAepQVkhMrdnDvlNAROjaJB6OMKc2iyHkD/y+t8buU2XuitcMMWNx5c2CTNf8SV8aCcnr lbziMXA3kg+O1GxxTmj0j3DD2iCIhfIPMvwzZcK4UT6AoerFVf100+JC2qHNKrWl9KNN1dWPc 4PgwCQpkjLXpR6t/FE8CfvnoMtPQHkYBP7vqVoP3ZuXj3wMuUmE4L+avbqsWM5JcXED+0/SzH rQgj/M/KkKS5E2wK3jCA== X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191025_123412_684735_435FDBD9 X-CRM114-Status: GOOD ( 14.64 ) 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: y2038 Mailman List , Vincenzo Frascino , Linux ARM Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Fri, Oct 25, 2019 at 9:28 PM Russell King - ARM Linux admin wrote: > > On Fri, Oct 25, 2019 at 08:17:36PM +0100, Russell King - ARM Linux admin wrote: > > On Thu, Oct 24, 2019 at 01:47:24PM +0100, Vincenzo Frascino wrote: > > Okay, having discussed with Arnd what the current situation is, he > points out that he needs an additional patch to solve some further > build issues with the generic VDSO patches - caused by the Kconfig > changes in your first patch. > > I'd rather that gets fixed up before I apply the patches, rather > than applying a set of patches and a fix on top. > > Please re-spin with Arnd's Kconfig changes included. For reference, this is the change I needed to get randconfig builds working in configurations that did not enable CONFIG_VDSO: diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 32184065ceda..776ac0f4ef0e 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -60,8 +60,6 @@ config ARM select GENERIC_SMP_IDLE_THREAD select GENERIC_STRNCPY_FROM_USER select GENERIC_STRNLEN_USER - select GENERIC_GETTIMEOFDAY - select GENERIC_VDSO_32 select HANDLE_DOMAIN_IRQ select HARDIRQS_SW_RESEND select HAVE_ARCH_AUDITSYSCALL if AEABI && !OABI_COMPAT @@ -112,7 +110,6 @@ config ARM select HAVE_SYSCALL_TRACEPOINTS select HAVE_UID16 select HAVE_VIRT_CPU_ACCOUNTING_GEN - select HAVE_GENERIC_VDSO if AEABI select IRQ_FORCED_THREADING select MODULES_USE_ELF_REL select NEED_DMA_MAP_STATE diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig index 608a1f6414c2..dce67c6834a8 100644 --- a/arch/arm/mm/Kconfig +++ b/arch/arm/mm/Kconfig @@ -896,7 +896,10 @@ config VDSO bool "Enable VDSO for acceleration of some system calls" depends on AEABI && MMU && CPU_V7 default y if ARM_ARCH_TIMER + select HAVE_GENERIC_VDSO select GENERIC_TIME_VSYSCALL + select GENERIC_VDSO_32 + select GENERIC_GETTIMEOFDAY help Place in the process address space an ELF shared object providing fast implementations of gettimeofday and _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel