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SubjectRe: [PATCH RFC 6/6] kprobes: Add cases for arm and arm64 in sample module
On Thu, Oct 17, 2013 at 12:17:51PM +0100, Sandeepa Prabhu wrote:
> Add info prints in sample kprobe handlers for ARM and ARM64
> architecture.
>
> Signed-off-by: Sandeepa Prabhu <sandeepa.prabhu@linaro.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

Huh? Why can't you combine these two together and either unconditionall cast
to long, or use void * and %p?

Will


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