(2014/06/19 21:34), Namhyung Kim wrote:
> Hi Masami,
>
> 2014-06-17 (화), 11:04 +, Masami Hiramatsu:
>> +static int __ftrace_add_filter_ip(struct ftrace_ops *ops, unsigned long ip,
>> + int *ref)
>> +{
>> +int ret;
>> +
>> +/* Try to set given ip to filter *
On Thu, 19 Jun 2014 21:34:31 +0900, Namhyung Kim wrote:
> What about this?
>
> static int __ftrace_remove_filter_ip(...)
> {
> if (*ref == 1) {
> int ret = unregister_ftrace_function(ops);
> if (ret < 0)
> return ret;
>
> ftrace_
Hi Masami,
2014-06-17 (화), 11:04 +, Masami Hiramatsu:
> +static int __ftrace_add_filter_ip(struct ftrace_ops *ops, unsigned long ip,
> + int *ref)
> +{
> + int ret;
> +
> + /* Try to set given ip to filter */
> + ret = ftrace_set_filter_ip(ops, ip, 0,
Set FTRACE_OPS_FL_IPMODIFY flag only for the probes which can change
regs->ip, which has kprobe->break_handler.
Currently only jprobe modifies regs->ip to hook a function entry
and jumps to a user handler which has same prototype of the original
function.
In other cases, kprobes restores original
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