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Rao" , Will Deacon , "David S. Miller" , "linux-arm-kernel@lists.infradead.org" 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) Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit 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 Sender: linux-doc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-doc@vger.kernel.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