Merge tag 'ceph-for-4.18-rc1' of git://github.com/ceph/ceph-client

[linux-2.6-microblaze.git] / kernel / trace / trace_uprobe.c

diff --git a/kernel/trace/trace_uprobe.c b/kernel/trace/trace_uprobe.c
index ac89287..bf89a51 100644 (file)
--- a/kernel/trace/trace_uprobe.c
+++ b/kernel/trace/trace_uprobe.c
@@ -1161,6 +1161,28 @@ static void uretprobe_perf_func(struct trace_uprobe *tu, unsigned long func,
 {
        __uprobe_perf_func(tu, func, regs, ucb, dsize);
 }
+
+int bpf_get_uprobe_info(const struct perf_event *event, u32 *fd_type,
+                       const char **filename, u64 *probe_offset,
+                       bool perf_type_tracepoint)
+{
+       const char *pevent = trace_event_name(event->tp_event);
+       const char *group = event->tp_event->class->system;
+       struct trace_uprobe *tu;
+
+       if (perf_type_tracepoint)
+               tu = find_probe_event(pevent, group);
+       else
+               tu = event->tp_event->data;
+       if (!tu)
+               return -EINVAL;
+
+       *fd_type = is_ret_probe(tu) ? BPF_FD_TYPE_URETPROBE
+                                   : BPF_FD_TYPE_UPROBE;
+       *filename = tu->filename;
+       *probe_offset = tu->offset;
+       return 0;
+}
 #endif /* CONFIG_PERF_EVENTS */
 
 static int