Messages in this thread | | | Date | Wed, 04 Feb 2015 12:17:21 +0900 | From | Masami Hiramatsu <> | Subject | Re: [PATCH] SAMPLES: kprobe_example: Make it print something on ARM. |
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(2015/02/04 11:56), Wang Long wrote: > This KProbes example is a little useless if it doesn't print anything. > For ARM print similar messages to those produced on x86 and PPC.
BTW, I guess similar update required for s390, doesn't it?
> > Signed-off-by: Wang Long <long.wanglong@huawei.com>
Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Thank you!
> --- > samples/kprobes/kprobe_example.c | 9 +++++++++ > 1 file changed, 9 insertions(+) > > diff --git a/samples/kprobes/kprobe_example.c b/samples/kprobes/kprobe_example.c > index 366db1a..eba9f1a 100644 > --- a/samples/kprobes/kprobe_example.c > +++ b/samples/kprobes/kprobe_example.c > @@ -42,6 +42,11 @@ 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, ARM_pc = 0x%lx," > + " ARM_cpsr = 0x%lx\n", > + p->addr, regs->ARM_pc, regs->ARM_cpsr); > +#endif > > /* A dump_stack() here will give a stack backtrace */ > return 0; > @@ -67,6 +72,10 @@ 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_ARM > + printk(KERN_INFO "post_handler: p->addr = 0x%p, ARM_cpsr = 0x%lx\n", > + p->addr, regs->ARM_cpsr); > +#endif > } > > /* >
-- Masami HIRAMATSU Software Platform Research Dept. Linux Technology Research Center Hitachi, Ltd., Yokohama Research Laboratory E-mail: masami.hiramatsu.pt@hitachi.com
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