static int probe_event_enable(struct ftrace_event_call *call)
{
struct trace_probe *tp = (struct trace_probe *)call->data;
tp->flags |= TP_FLAG_TRACE;
if (probe_is_return(tp))
return enable_kretprobe(&tp->rp);
else
return enable_kprobe(&tp->rp.kp);
}
static int
stapkp_enable_probe(struct stap_dwarf_probe *sdp)
{
int ret = 0;
dbug_otf("enabling (k%sprobe) pidx %zu\n",
sdp->return_p ? "ret" : "", sdp->probe->index);
ret = sdp->return_p ? enable_kretprobe(&sdp->kprobe->u.krp)
: enable_kprobe(&sdp->kprobe->u.kp);
if (ret != 0) {
stapkp_unregister_probe(sdp);
dbug_otf("failed to enable (k%sprobe) pidx %zu (rc %d)\n",
sdp->return_p ? "ret" : "", sdp->probe->index, ret);
}
return ret;
}