On 06/08/2016 01:49 AM, Huang Shijie wrote:
On Thu, Jun 02, 2016 at 11:26:24PM -0400, David Long wrote:
From: Sandeepa Prabhu <sandeepa.s.pra...@gmail.com>
Add info prints in sample kprobe handlers for ARM64
Signed-off-by: Sandeepa Prabhu <sandeepa.s.pra...@gmail.com>
---
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 ed0ca0c..aad8e6f 100644
--- a/samples/kprobes/kprobe_example.c
+++ b/samples/kprobes/kprobe_example.c
@@ -46,6 +46,10 @@ static int handler_pre(struct kprobe *p, struct pt_regs
*regs)
" ex1 = 0x%lx\n",
p->symbol_name, 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);
Please add the "p->symbol_name" for the log, just as the above line.
The v14 patch set will have changes that align more closely to how this
works on other architectures.
+#endif
/* A dump_stack() here will give a stack backtrace */
return 0;
@@ -71,6 +75,10 @@ static void handler_post(struct kprobe *p, struct pt_regs
*regs,
printk(KERN_INFO "<%s> post_handler: p->addr = 0x%p, ex1 = 0x%lx\n",
p->symbol_name, 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
}
Ditto.
thanks
Huang Shijie
Thanks,
-dl
