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From: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
To: Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will@kernel.org>,
	 Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
	"H. Peter Anvin" <hpa@zytor.com>,
	Masami Hiramatsu <mhiramat@kernel.org>,
	"David S. Miller" <davem@davemloft.net>,
	Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>,
	"Naveen N. Rao" <naveen.n.rao@linux.ibm.com>,
	Steven Rostedt <rostedt@goodmis.org>
Cc: "x86@kernel.org" <x86@kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"linux-arm-kernel@lists.infradead.org"
	<linux-arm-kernel@lists.infradead.org>
Subject: [PATCH 1/4] kprobes: adjust kprobe addr for KPROBES_ON_FTRACE
Date: Mon, 19 Aug 2019 11:36:09 +0000	[thread overview]
Message-ID: <20190819192505.483c0bf0@xhacker.debian> (raw)
In-Reply-To: <20190819192422.5ed79702@xhacker.debian>

For KPROBES_ON_FTRACE case, we need to adjust the kprobe's addr
correspondingly.

Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
---
 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);
-- 
2.23.0.rc1


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WARNING: multiple messages have this Message-ID (diff)
From: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
To: Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will@kernel.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
	"H. Peter Anvin" <hpa@zytor.com>,
	Masami Hiramatsu <mhiramat@kernel.org>,
	"David S. Miller" <davem@davemloft.net>,
	Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>,
	"Naveen N. Rao" <naveen.n.rao@linux.ibm.com>,
	Steven Rostedt <rostedt@goodmis.org>
Cc: "x86@kernel.org" <x86@kernel.org>,
	"linux-arm-kernel@lists.infradead.org" 
	<linux-arm-kernel@lists.infradead.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: [PATCH 1/4] kprobes: adjust kprobe addr for KPROBES_ON_FTRACE
Date: Mon, 19 Aug 2019 11:36:09 +0000	[thread overview]
Message-ID: <20190819192505.483c0bf0@xhacker.debian> (raw)
In-Reply-To: <20190819192422.5ed79702@xhacker.debian>

For KPROBES_ON_FTRACE case, we need to adjust the kprobe's addr
correspondingly.

Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
---
 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);
-- 
2.23.0.rc1


  reply	other threads:[~2019-08-19 11:36 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-19 11:35 [PATCH 0/4] arm64: KPROBES_ON_FTRACE Jisheng Zhang
2019-08-19 11:35 ` Jisheng Zhang
2019-08-19 11:36 ` Jisheng Zhang [this message]
2019-08-19 11:36   ` [PATCH 1/4] kprobes: adjust kprobe addr for KPROBES_ON_FTRACE Jisheng Zhang
2019-08-19 16:43   ` Naveen N. Rao
2019-08-19 16:43     ` Naveen N. Rao
2019-08-20  1:51     ` Jisheng Zhang
2019-08-20  1:51       ` Jisheng Zhang
2019-08-20  0:01   ` Masami Hiramatsu
2019-08-20  0:01     ` Masami Hiramatsu
2019-08-20  2:05     ` Jisheng Zhang
2019-08-20  2:05       ` Jisheng Zhang
2019-08-19 11:36 ` [PATCH 2/4] kprobes/x86: use instruction_pointer and instruction_pointer_set Jisheng Zhang
2019-08-19 11:36   ` Jisheng Zhang
2019-08-20  0:09   ` Masami Hiramatsu
2019-08-20  0:09     ` Masami Hiramatsu
2019-08-19 11:37 ` [PATCH 3/4] kprobes: move kprobe_ftrace_handler() from x86 and make it weak Jisheng Zhang
2019-08-19 11:37   ` Jisheng Zhang
2019-08-20  0:07   ` Masami Hiramatsu
2019-08-20  0:07     ` Masami Hiramatsu
2019-08-20  1:56     ` Jisheng Zhang
2019-08-20  1:56       ` Jisheng Zhang
2019-08-19 11:38 ` [PATCH 4/4] arm64: implement KPROBES_ON_FTRACE Jisheng Zhang
2019-08-19 11:38   ` Jisheng Zhang
2019-08-19 16:52   ` Naveen N. Rao
2019-08-19 16:52     ` Naveen N. Rao
2019-08-20  2:16     ` Jisheng Zhang
2019-08-20  2:16       ` Jisheng Zhang
2019-08-19 12:53 ` [PATCH 0/4] arm64: KPROBES_ON_FTRACE Mark Rutland
2019-08-19 12:53   ` Mark Rutland
2019-08-19 13:10 ` Masami Hiramatsu
2019-08-19 13:10   ` Masami Hiramatsu

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