kernel/trace/trace_events_stage_1.h

   1 /*
   2  * Stage 1 of the trace events.
   3  *
   4  * Override the macros in <trace/trace_event_types.h> to include the following:
   5  *
   6  * struct ftrace_raw_<call> {
   7  *      struct trace_entry              ent;
   8  *      <type>                          <item>;
   9  *      [...]
  10  * };
  11  *
  12  * The <type> <item> is created by the TRACE_FIELD(type, item, assign)
  13  * macro. We simply do "type item;", and that will create the fields
  14  * in the structure.
  15  */
  16
  17 #undef TRACE_FORMAT
  18 #define TRACE_FORMAT(call, proto, args, fmt)
  19
  20 #undef TRACE_EVENT_FORMAT
  21 #define TRACE_EVENT_FORMAT(name, proto, args, fmt, tstruct, tpfmt)      \
  22         struct ftrace_raw_##name {                                      \
  23                 struct trace_entry      ent;                            \
  24                 tstruct                                                 \
  25         };                                                              \
  26         static struct ftrace_event_call event_##name
  27
  28 #undef TRACE_STRUCT
  29 #define TRACE_STRUCT(args...) args
  30
  31 #define TRACE_FIELD(type, item, assign) \
  32         type item;
  33
  34 #include <trace/trace_event_types.h>