linux-kernel - [PATCH v4 6/6] kprobes: Add arm64 case in kprobe example module

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Message-Id: <1420949002-3726-7-git-send-email-dave.long@linaro.org>
Date:	Sat, 10 Jan 2015 23:03:21 -0500
From:	David Long <dave.long@...aro.org>
To:	linux-arm-kernel@...ts.infradead.org,
	Russell King <linux@....linux.org.uk>
Cc:	Sandeepa Prabhu <sandeepa.prabhu@...aro.org>,
	William Cohen <wcohen@...hat.com>,
	Steve Capper <steve.capper@...aro.org>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will.deacon@....com>,
	"Jon Medhurst (Tixy)" <tixy@...aro.org>,
	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>,
	Ananth N Mavinakayanahalli <ananth@...ibm.com>,
	Anil S Keshavamurthy <anil.s.keshavamurthy@...el.com>,
	<davem@...emloft.net>, linux-kernel@...r.kernel.org
Subject: [PATCH v4 6/6] kprobes: Add arm64 case in kprobe example module

From: Sandeepa Prabhu <sandeepa.prabhu@...aro.org>

Add info prints in sample kprobe handlers for ARM64

Signed-off-by: Sandeepa Prabhu <sandeepa.prabhu@...aro.org>
---
 samples/kprobes/kprobe_example.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/samples/kprobes/kprobe_example.c b/samples/kprobes/kprobe_example.c
index 366db1a..51d459c 100644
--- a/samples/kprobes/kprobe_example.c
+++ b/samples/kprobes/kprobe_example.c
@@ -42,6 +42,10 @@ static int handler_pre(struct kprobe *p, struct pt_regs *regs)
 			" ex1 = 0x%lx\n",
 		p->addr, regs->pc, regs->ex1);
 #endif
+#ifdef CONFIG_ARM64
+	pr_info("pre_handler: p->addr = 0x%p, pc = 0x%lx\n",
+		p->addr, (long)regs->pc);
+#endif
 
 	/* A dump_stack() here will give a stack backtrace */
 	return 0;
@@ -67,6 +71,10 @@ static void handler_post(struct kprobe *p, struct pt_regs *regs,
 	printk(KERN_INFO "post_handler: p->addr = 0x%p, ex1 = 0x%lx\n",
 		p->addr, regs->ex1);
 #endif
+#ifdef CONFIG_ARM64
+	pr_info("post_handler: p->addr = 0x%p, pc = 0x%lx\n",
+		p->addr, (long)regs->pc);
+#endif
 }
 
 /*
-- 
1.8.1.2

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