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  *      <type2>                         <item2>[<len>];
  10  *      [...]
  11  * };
  12  *
  13  * The <type> <item> is created by the __field(type, item) macro or
  14  * the __array(type2, item2, len) macro.
  15  * We simply do "type item;", and that will create the fields
  16  * in the structure.
  17  */
  18
  19 #undef TRACE_FORMAT
  20 #define TRACE_FORMAT(call, proto, args, fmt)
  21
  22 #undef __array
  23 #define __array(type, item, len)        type    item[len];
  24
  25 #undef __field
  26 #define __field(type, item)             type    item;
  27
  28 #undef TP_STRUCT__entry
  29 #define TP_STRUCT__entry(args...) args
  30
  31 #undef TRACE_EVENT
  32 #define TRACE_EVENT(name, proto, args, tstruct, assign, print)  \
  33         struct ftrace_raw_##name {                              \
  34                 struct trace_entry      ent;                    \
  35                 tstruct                                         \
  36         };                                                      \
  37         static struct ftrace_event_call event_##name
  38
  39 #include <trace/trace_event_types.h>