linux-kernel - [PATCH RFC 6/6] kprobes: Add cases for arm and arm64 in sample module

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Message-Id: <1382008671-4515-7-git-send-email-sandeepa.prabhu@linaro.org>
Date:	Thu, 17 Oct 2013 16:47:51 +0530
From:	Sandeepa Prabhu <sandeepa.prabhu@...aro.org>
To:	linux-arm-kernel@...ts.infradead.org
Cc:	linux-kernel@...r.kernel.org, patches@...aro.org,
	linaro-kernel@...ts.linaro.org, catalin.marinas@....com,
	will.deacon@....com, steve.capper@...aro.org, nico@...aro.org,
	srikar@...ux.vnet.ibm.com, rostedt@...dmis.org,
	masami.hiramatsu.pt@...achi.com, dsaxena@...aro.org,
	jiang.liu@...wei.com, Vijaya.Kumar@...iumnetworks.com,
	Sandeepa Prabhu <sandeepa.prabhu@...aro.org>
Subject: [PATCH RFC 6/6] kprobes: Add cases for arm and arm64 in sample module

Add info prints in sample kprobe handlers for ARM and ARM64
architecture.

Signed-off-by: Sandeepa Prabhu <sandeepa.prabhu@...aro.org>
---
 samples/kprobes/kprobe_example.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/samples/kprobes/kprobe_example.c b/samples/kprobes/kprobe_example.c
index 366db1a..0521246 100644
--- a/samples/kprobes/kprobe_example.c
+++ b/samples/kprobes/kprobe_example.c
@@ -42,6 +42,14 @@ static int handler_pre(struct kprobe *p, struct pt_regs *regs)
 			" ex1 = 0x%lx\n",
 		p->addr, regs->pc, regs->ex1);
 #endif
+#ifdef CONFIG_ARM
+	printk(KERN_INFO "pre_handler: p->addr = 0x%p, pc = 0x%lx\n",
+			p->addr, regs->ARM_pc);
+#endif
+#ifdef CONFIG_ARM64
+	printk(KERN_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 +75,14 @@ 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_ARM
+	printk(KERN_INFO "post_handler: p->addr = 0x%p, pc = 0x%lx\n",
+			p->addr, regs->ARM_pc);
+#endif
+#ifdef CONFIG_ARM64
+	printk(KERN_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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