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Peter Anvin" , Masami Hiramatsu , "David S. Miller" , Anil S Keshavamurthy , "Naveen N. Rao" , Steven Rostedt Subject: [PATCH 1/4] kprobes: adjust kprobe addr for KPROBES_ON_FTRACE Thread-Topic: [PATCH 1/4] kprobes: adjust kprobe addr for KPROBES_ON_FTRACE Thread-Index: AQHVVoJMyFG9yAYnDUGqVMEGNEXBVw== Date: Mon, 19 Aug 2019 11:36:09 +0000 Message-ID: <20190819192505.483c0bf0@xhacker.debian> References: <20190819192422.5ed79702@xhacker.debian> In-Reply-To: <20190819192422.5ed79702@xhacker.debian> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [124.74.246.114] x-clientproxiedby: TYCPR01CA0053.jpnprd01.prod.outlook.com (2603:1096:405:2::17) To BYAPR03MB4773.namprd03.prod.outlook.com (2603:10b6:a03:134::24) authentication-results: spf=none (sender IP is ) smtp.mailfrom=Jisheng.Zhang@synaptics.com; x-ms-exchange-messagesentrepresentingtype: 1 x-mailer: Claws Mail 3.17.3 (GTK+ 2.24.32; x86_64-pc-linux-gnu) x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 2c17c311-704d-49d0-e979-08d724996e64 x-microsoft-antispam: BCL:0; PCL:0; RULEID:(2390118)(7020095)(4652040)(8989299)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(5600148)(711020)(4605104)(1401327)(2017052603328)(7193020); SRVR:BYAPR03MB4838; x-ms-traffictypediagnostic: BYAPR03MB4838: x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:478; x-forefront-prvs: 0134AD334F x-forefront-antispam-report: SFV:NSPM; SFS:(10009020)(39860400002)(136003)(396003)(376002)(346002)(366004)(189003)(199004)(316002)(50226002)(7416002)(52116002)(99286004)(6486002)(478600001)(2906002)(66066001)(71200400001)(54906003)(86362001)(14454004)(3846002)(5660300002)(71190400001)(110136005)(76176011)(4744005)(8936002)(6436002)(66946007)(305945005)(81156014)(66446008)(64756008)(81166006)(66556008)(66476007)(8676002)(6116002)(7736002)(186003)(102836004)(1076003)(26005)(6512007)(446003)(9686003)(11346002)(53936002)(486006)(6506007)(386003)(476003)(256004)(25786009)(4326008)(921003)(1121003)(39210200001); DIR:OUT; SFP:1101; SCL:1; SRVR:BYAPR03MB4838; H:BYAPR03MB4773.namprd03.prod.outlook.com; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; MX:1; A:0; received-spf: None (protection.outlook.com: synaptics.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: c81MKNF1YphsHMlylKiRBU9aJ/xP+u1Lbl7wz7r9VK8QVsMiwQP716huOxdjDlYnF3KL+jyYIKS4gjY3lHngl/P/23jPM9fCt2/k3VtDdDwn+AIR6grdlMY+S5qfz3xrgJFmDLnobohoEwX7oOwWMAgF4ycFuG1NF0UOkpVzYQ9fW3Rislt7AcgmT/c0OUsteCC1jJYPK9bDRsdFzqcmvT5IVTHTxFpphG/zgd+P/wbo7/DO6ZROzcSSVwmtCviGynM31y+8rPofZShups3RsSPd7udYV8sLqaVTuOcmuSvTtRRU+jBGL4tHZhQRrKIHdLnJ0N1gmdz8ShX/4mhGEaS8ZaALF5r1jESAFJnLCQHRhwZD6cGeqiUrBRPpNOIzUpzoU5mnWrybcJFHBfhce+A/UViQTaqshE7eWp5lsTU= x-ms-exchange-transport-forked: True Content-ID: MIME-Version: 1.0 X-OriginatorOrg: synaptics.com X-MS-Exchange-CrossTenant-Network-Message-Id: 2c17c311-704d-49d0-e979-08d724996e64 X-MS-Exchange-CrossTenant-originalarrivaltime: 19 Aug 2019 11:36:10.0036 (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: 0nXnn4v0KeDRAUFNixQYt1ALLlXZaxisepbnOOmcF1QL3/QeF5ra00On90OhH//GuJZKNwV0Ve2tlIF6fTLQPQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR03MB4838 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190819_043611_688277_C49AC52F X-CRM114-Status: GOOD ( 10.16 ) 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: "x86@kernel.org" , "linux-kernel@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" 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 For KPROBES_ON_FTRACE case, we need to adjust the kprobe's addr correspondingly. Signed-off-by: Jisheng Zhang --- kernel/kprobes.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/kernel/kprobes.c b/kernel/kprobes.c index 9873fc627d61..f8400753a8a9 100644 --- a/kernel/kprobes.c +++ b/kernel/kprobes.c @@ -1560,6 +1560,9 @@ int register_kprobe(struct kprobe *p) addr = kprobe_addr(p); if (IS_ERR(addr)) return PTR_ERR(addr); +#ifdef CONFIG_KPROBES_ON_FTRACE + addr = (kprobe_opcode_t *)ftrace_call_adjust((unsigned long)addr); +#endif p->addr = addr; ret = check_kprobe_rereg(p);