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=-5.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, MSGID_FROM_MTA_HEADER,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_2 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 621E4C433E0 for ; Fri, 24 Jul 2020 07:08:07 +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 268E520748 for ; Fri, 24 Jul 2020 07:08:07 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="Fb0xCT7V"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=Synaptics.onmicrosoft.com header.i=@Synaptics.onmicrosoft.com header.b="bdsFIl9O" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 268E520748 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=synaptics.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+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=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: Subject:To:From:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=mb9AsD4YyZWqNlQqg6ZqUugCN+chjcNcuKQaUOg4+ko=; b=Fb0xCT7VTEHgICh8/TDuZlcq2 GsYwazHKEmEaL38kp1ULkfl2xqCzx6gogTc5et116xjoZWslO9C/FzKOEFh3qiHu88UlM5xVQT+NO 5ZFmxXYwgmaH8mQ/Ct5ZmNyKe5KrNe6rNO3f4BxXzvwIre0tyQQ/1wEjAr54+WdVDO1GDNIyzT/6J uaNA8doAlkzYe+iCneVFhP7+CJJOrSHhc3g0otvB0glnkd2TgaNBmVlZbWHo54bM/qsqJhA35P6HR veRUFOydCw1RyqZDVQ+q4iE5RGm2Cjo5sxLENvrQusvwYHwWN9OEgCQZJNcBV3BD72vyVlL9O0JYU yl8e6X0Rg==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jyrmu-0000vE-MW; Fri, 24 Jul 2020 07:06:36 +0000 Received: from mail-dm6nam12on2051.outbound.protection.outlook.com ([40.107.243.51] helo=NAM12-DM6-obe.outbound.protection.outlook.com) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jyrmr-0000tV-SJ for linux-arm-kernel@lists.infradead.org; Fri, 24 Jul 2020 07:06:35 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=O92psmYm/nXTEEKgaJWWfjNDtYihBzG0FmNqmYY0ntfDenZpLVNHsKwcb5Zl2wO3l20aJqG/25K1mVl92zgplXu51wm9h3ncuikRbuH40NX0SlVGII3V4poVMBU3+ZMoqjP5xGH7j2BhXpSGLXC1R9YrmSkeIvsZldN3FibwOS8SUAbk0DBWWNa5CkXEG3Ug8XwTrx43Kw8E5Nn6z4wKyy/rwWibNBwcb3REXOoBxwhJSf1NwQiH1CbYXpEPft6DjZOPjDio/GDoFDk2Ir70poCpFJMR63e4vfeDeXfzErPUuFesbBDBevO2/MicTLX9yeJWhQUSaNthmKxlLptBUg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=hCp7RcgaieN8p0Exjrpy3Yu090OEmGK35vQF6J3fB8Y=; b=Nu01lnlvn8DIjpCsAX9SB1rnZJxdYDyB6QpMiR70aAjVSrLAEUX2RF3P1kQ7xYzO2/Ulu6joqWnmta9KA6A5X4vVFBoWunMlBD3zyLdgrKa4Mg+Ko/upm/Xj8V2OdJ0qvuMT21ychEap5QvvPBlf9ch15TmthefqB2F6L0q4GgaNbeNifzprTsLqibYFwheEBbn5GdBthqeUublnVCP27x2yfkoOWruQlv+k/vlU6XbRCXSxOYtou0jf5DApmemHWuvczrjXloj+DsvAQ6YhgVhsNbycxLCED4WgFU2SwBgjNzyd+vY9B7olMGc9AMXlQm1xyFk7wkAkp0ZwvBmFAA== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=synaptics.com; dmarc=pass action=none header.from=synaptics.com; dkim=pass header.d=synaptics.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=Synaptics.onmicrosoft.com; s=selector2-Synaptics-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=hCp7RcgaieN8p0Exjrpy3Yu090OEmGK35vQF6J3fB8Y=; b=bdsFIl9Oz0cT+aOuIq5CzAP5NMMQMqJsmYfRITsFANnuZwEw5+4G3Sza+Q51icbiEZHWsL4UipiAlpX/FUBUf7CInTrL7qVqqNcbOAViGutRWKhE+DiXE0ITQhUZpBhuEAE9xGyxjJbmGrsh1qM3HZS35gr6wbLVngoNMqynIIw= Authentication-Results: kernel.org; dkim=none (message not signed) header.d=none;kernel.org; dmarc=none action=none header.from=synaptics.com; Received: from BYAPR03MB3573.namprd03.prod.outlook.com (2603:10b6:a02:ae::15) by BYAPR03MB4008.namprd03.prod.outlook.com (2603:10b6:a03:76::17) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3216.24; Fri, 24 Jul 2020 07:06:29 +0000 Received: from BYAPR03MB3573.namprd03.prod.outlook.com ([fe80::b5cc:ca6b:3c25:a99c]) by BYAPR03MB3573.namprd03.prod.outlook.com ([fe80::b5cc:ca6b:3c25:a99c%4]) with mapi id 15.20.3216.026; Fri, 24 Jul 2020 07:06:29 +0000 Date: Fri, 24 Jul 2020 15:06:11 +0800 From: Jisheng Zhang To: Masami Hiramatsu Subject: Re: [PATCH v7 3/3] arm64: implement KPROBES_ON_FTRACE Message-ID: <20200724150611.40b17827@xhacker.debian> In-Reply-To: <20200721222455.e99fb8660f69f61ad1bc8942@kernel.org> References: <20191225172625.69811b3e@xhacker.debian> <20191225173001.6c0e3fb2@xhacker.debian> <20191226115707.902545688aa90b34e2e550b3@kernel.org> <20191226110348.146bb80b@xhacker.debian> <20191226121108.0cd1b078@xhacker.debian> <20191226182607.06770598a00507090a046951@kernel.org> <20200721222455.e99fb8660f69f61ad1bc8942@kernel.org> X-Mailer: Claws Mail 3.17.5 (GTK+ 2.24.32; x86_64-pc-linux-gnu) X-ClientProxiedBy: TYAPR01CA0136.jpnprd01.prod.outlook.com (2603:1096:404:2d::28) To BYAPR03MB3573.namprd03.prod.outlook.com (2603:10b6:a02:ae::15) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from xhacker.debian (124.74.246.114) by TYAPR01CA0136.jpnprd01.prod.outlook.com (2603:1096:404:2d::28) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3216.24 via Frontend Transport; Fri, 24 Jul 2020 07:06:25 +0000 X-Mailer: Claws Mail 3.17.5 (GTK+ 2.24.32; x86_64-pc-linux-gnu) X-Originating-IP: [124.74.246.114] X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 252f9aec-890b-4ced-4bec-08d82fa0165a X-MS-TrafficTypeDiagnostic: BYAPR03MB4008: X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:8273; X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: xogJztzqr8gU5SWQZeBVQDnRZ7UvW81fnp1kME76xACB3IAaHPVfBzrcQ298Z6mecY9yLZ8Sl6xomPjc801VOcFtK32FHA+jSARTd03aYCVmLMZWG4g6BB1gWAxQ2+vk9Q7mwGfNLHA5lIIX3w9j+eyizenZgCVIDrFGmuWn7QIKBWhv6HRflYHvKVOLZ9vkfHjpPNLNMH4B/U/lxshWJgLgdGTPIeFhOWizBSW/NyPPT7mJ2jEyF3lbzqqbQzxbuNoUrVgZnTizQy0yF4r3F62iqxl2pnXxktnHXC0EYnZVo24cqskjfGxV84V9wApEQnePPFGxUR52gsAS1FZjXw== X-Forefront-Antispam-Report: CIP:255.255.255.255; CTRY:; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:BYAPR03MB3573.namprd03.prod.outlook.com; PTR:; CAT:NONE; SFTY:; SFS:(396003)(136003)(346002)(376002)(366004)(39860400002)(9686003)(86362001)(4326008)(66556008)(8936002)(54906003)(26005)(8676002)(66476007)(7416002)(186003)(6916009)(956004)(16526019)(316002)(55016002)(66946007)(52116002)(478600001)(1076003)(4744005)(2906002)(6506007)(5660300002)(7696005)(6666004); DIR:OUT; SFP:1101; X-MS-Exchange-AntiSpam-MessageData: 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 X-OriginatorOrg: synaptics.com X-MS-Exchange-CrossTenant-Network-Message-Id: 252f9aec-890b-4ced-4bec-08d82fa0165a X-MS-Exchange-CrossTenant-AuthSource: BYAPR03MB3573.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 24 Jul 2020 07:06:29.5181 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 335d1fbc-2124-4173-9863-17e7051a2a0e X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: 4tI76fb9SpwylKFaQ1EnmOGqVfVCbp7Anz3FckNEPH/VmGAsObldMTDESNSOtVvVEvf6T3WNlAD3PloHmk6BMw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR03MB4008 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200724_030634_074647_8BA71EE1 X-CRM114-Status: GOOD ( 11.66 ) 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-doc@vger.kernel.org" , Catalin Marinas , Jonathan Corbet , "linux-kernel@vger.kernel.org" , Anil S Keshavamurthy , Ingo Molnar , Steven Rostedt , "Naveen N. Rao" , Will Deacon , "David S. Miller" , "linux-arm-kernel@lists.infradead.org" Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Tue, 21 Jul 2020 22:24:55 +0900 Masami Hiramatsu wrote: > > > Hi Jisheng, Hi, > > Would you be still working on this series? I will rebase the implementation on the latest code, then try to address your comments and Mark's comments. I will send out patches in this weekend. > > If you are still want to put a probe on func+4, it is OK if you can > completely emulate the 1st instruction. (lr save on the stack and > change the regs->sp) Will check which is the better solution. Thank you very much _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel