On 2017/02/27 11:52AM, Steven Rostedt (VMware) wrote:
> Let's not remove the warning about offsets and return probes when the
> offset is invalid.
Good point!
Thanks, Steve!
>
> Signed-off-by: Steven Rostedt (VMware) <rost...@goodmis.org>
Acked-by: Naveen N. Rao <naveen.n....@linux.vnet.ibm.com>
> ---
> diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c
> index 3f4f788..f626235 100644
> --- a/kernel/trace/trace_kprobe.c
> +++ b/kernel/trace/trace_kprobe.c
> @@ -695,6 +695,11 @@ static int create_trace_kprobe(int argc, char **argv)
> pr_info("Failed to parse symbol.\n");
> return ret;
> }
> + if (offset && is_return &&
> + !arch_function_offset_within_entry(offset)) {
> + pr_info("Given offset is not valid for return
> probe.\n");
> + return -EINVAL;
> + }
> }
> argc -= 2; argv += 2;
>
>
