tracing: Define new ftrace event "func_repeats"

[linux-2.6-microblaze.git] / kernel / trace / trace_entries.h

diff --git a/kernel/trace/trace_entries.h b/kernel/trace/trace_entries.h
index 4547ac5..251c819 100644 (file)
--- a/kernel/trace/trace_entries.h
+++ b/kernel/trace/trace_entries.h
@@ -338,3 +338,25 @@ FTRACE_ENTRY(hwlat, hwlat_entry,
                 __entry->nmi_total_ts,
                 __entry->nmi_count)
 );
+
+#define FUNC_REPEATS_GET_DELTA_TS(entry)                               \
+       (((u64)(entry)->top_delta_ts << 32) | (entry)->bottom_delta_ts) \
+
+FTRACE_ENTRY(func_repeats, func_repeats_entry,
+
+       TRACE_FUNC_REPEATS,
+
+       F_STRUCT(
+               __field(        unsigned long,  ip              )
+               __field(        unsigned long,  parent_ip       )
+               __field(        u16     ,       count           )
+               __field(        u16     ,       top_delta_ts    )
+               __field(        u32     ,       bottom_delta_ts )
+       ),
+
+       F_printk(" %ps <-%ps\t(repeats:%u  delta: -%llu)",
+                (void *)__entry->ip,
+                (void *)__entry->parent_ip,
+                __entry->count,
+                FUNC_REPEATS_GET_DELTA_TS(__entry))
+);