Merge remote-tracking branches 'spi/topic/devprop', 'spi/topic/fsl', 'spi/topic/fsl...
[sfrench/cifs-2.6.git] / include / trace / trace_events.h
1 /*
2  * Stage 1 of the trace events.
3  *
4  * Override the macros in <trace/trace_events.h> to include the following:
5  *
6  * struct trace_event_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 #include <linux/trace_events.h>
20
21 #ifndef TRACE_SYSTEM_VAR
22 #define TRACE_SYSTEM_VAR TRACE_SYSTEM
23 #endif
24
25 #define __app__(x, y) str__##x##y
26 #define __app(x, y) __app__(x, y)
27
28 #define TRACE_SYSTEM_STRING __app(TRACE_SYSTEM_VAR,__trace_system_name)
29
30 #define TRACE_MAKE_SYSTEM_STR()                         \
31         static const char TRACE_SYSTEM_STRING[] =       \
32                 __stringify(TRACE_SYSTEM)
33
34 TRACE_MAKE_SYSTEM_STR();
35
36 #undef TRACE_DEFINE_ENUM
37 #define TRACE_DEFINE_ENUM(a)                            \
38         static struct trace_enum_map __used __initdata  \
39         __##TRACE_SYSTEM##_##a =                        \
40         {                                               \
41                 .system = TRACE_SYSTEM_STRING,          \
42                 .enum_string = #a,                      \
43                 .enum_value = a                         \
44         };                                              \
45         static struct trace_enum_map __used             \
46         __attribute__((section("_ftrace_enum_map")))    \
47         *TRACE_SYSTEM##_##a = &__##TRACE_SYSTEM##_##a
48
49 /*
50  * DECLARE_EVENT_CLASS can be used to add a generic function
51  * handlers for events. That is, if all events have the same
52  * parameters and just have distinct trace points.
53  * Each tracepoint can be defined with DEFINE_EVENT and that
54  * will map the DECLARE_EVENT_CLASS to the tracepoint.
55  *
56  * TRACE_EVENT is a one to one mapping between tracepoint and template.
57  */
58 #undef TRACE_EVENT
59 #define TRACE_EVENT(name, proto, args, tstruct, assign, print) \
60         DECLARE_EVENT_CLASS(name,                              \
61                              PARAMS(proto),                    \
62                              PARAMS(args),                     \
63                              PARAMS(tstruct),                  \
64                              PARAMS(assign),                   \
65                              PARAMS(print));                   \
66         DEFINE_EVENT(name, name, PARAMS(proto), PARAMS(args));
67
68
69 #undef __field
70 #define __field(type, item)             type    item;
71
72 #undef __field_ext
73 #define __field_ext(type, item, filter_type)    type    item;
74
75 #undef __field_struct
76 #define __field_struct(type, item)      type    item;
77
78 #undef __field_struct_ext
79 #define __field_struct_ext(type, item, filter_type)     type    item;
80
81 #undef __array
82 #define __array(type, item, len)        type    item[len];
83
84 #undef __dynamic_array
85 #define __dynamic_array(type, item, len) u32 __data_loc_##item;
86
87 #undef __string
88 #define __string(item, src) __dynamic_array(char, item, -1)
89
90 #undef __bitmask
91 #define __bitmask(item, nr_bits) __dynamic_array(char, item, -1)
92
93 #undef TP_STRUCT__entry
94 #define TP_STRUCT__entry(args...) args
95
96 #undef DECLARE_EVENT_CLASS
97 #define DECLARE_EVENT_CLASS(name, proto, args, tstruct, assign, print)  \
98         struct trace_event_raw_##name {                                 \
99                 struct trace_entry      ent;                            \
100                 tstruct                                                 \
101                 char                    __data[0];                      \
102         };                                                              \
103                                                                         \
104         static struct trace_event_class event_class_##name;
105
106 #undef DEFINE_EVENT
107 #define DEFINE_EVENT(template, name, proto, args)       \
108         static struct trace_event_call  __used          \
109         __attribute__((__aligned__(4))) event_##name
110
111 #undef DEFINE_EVENT_FN
112 #define DEFINE_EVENT_FN(template, name, proto, args, reg, unreg)        \
113         DEFINE_EVENT(template, name, PARAMS(proto), PARAMS(args))
114
115 #undef DEFINE_EVENT_PRINT
116 #define DEFINE_EVENT_PRINT(template, name, proto, args, print)  \
117         DEFINE_EVENT(template, name, PARAMS(proto), PARAMS(args))
118
119 /* Callbacks are meaningless to ftrace. */
120 #undef TRACE_EVENT_FN
121 #define TRACE_EVENT_FN(name, proto, args, tstruct,                      \
122                 assign, print, reg, unreg)                              \
123         TRACE_EVENT(name, PARAMS(proto), PARAMS(args),                  \
124                 PARAMS(tstruct), PARAMS(assign), PARAMS(print))         \
125
126 #undef TRACE_EVENT_FN_COND
127 #define TRACE_EVENT_FN_COND(name, proto, args, cond, tstruct,   \
128                 assign, print, reg, unreg)                              \
129         TRACE_EVENT_CONDITION(name, PARAMS(proto), PARAMS(args), PARAMS(cond),          \
130                 PARAMS(tstruct), PARAMS(assign), PARAMS(print))         \
131
132 #undef TRACE_EVENT_FLAGS
133 #define TRACE_EVENT_FLAGS(name, value)                                  \
134         __TRACE_EVENT_FLAGS(name, value)
135
136 #undef TRACE_EVENT_PERF_PERM
137 #define TRACE_EVENT_PERF_PERM(name, expr...)                            \
138         __TRACE_EVENT_PERF_PERM(name, expr)
139
140 #include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
141
142 /*
143  * Stage 2 of the trace events.
144  *
145  * Include the following:
146  *
147  * struct trace_event_data_offsets_<call> {
148  *      u32                             <item1>;
149  *      u32                             <item2>;
150  *      [...]
151  * };
152  *
153  * The __dynamic_array() macro will create each u32 <item>, this is
154  * to keep the offset of each array from the beginning of the event.
155  * The size of an array is also encoded, in the higher 16 bits of <item>.
156  */
157
158 #undef TRACE_DEFINE_ENUM
159 #define TRACE_DEFINE_ENUM(a)
160
161 #undef __field
162 #define __field(type, item)
163
164 #undef __field_ext
165 #define __field_ext(type, item, filter_type)
166
167 #undef __field_struct
168 #define __field_struct(type, item)
169
170 #undef __field_struct_ext
171 #define __field_struct_ext(type, item, filter_type)
172
173 #undef __array
174 #define __array(type, item, len)
175
176 #undef __dynamic_array
177 #define __dynamic_array(type, item, len)        u32 item;
178
179 #undef __string
180 #define __string(item, src) __dynamic_array(char, item, -1)
181
182 #undef __bitmask
183 #define __bitmask(item, nr_bits) __dynamic_array(unsigned long, item, -1)
184
185 #undef DECLARE_EVENT_CLASS
186 #define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print)  \
187         struct trace_event_data_offsets_##call {                        \
188                 tstruct;                                                \
189         };
190
191 #undef DEFINE_EVENT
192 #define DEFINE_EVENT(template, name, proto, args)
193
194 #undef DEFINE_EVENT_PRINT
195 #define DEFINE_EVENT_PRINT(template, name, proto, args, print)  \
196         DEFINE_EVENT(template, name, PARAMS(proto), PARAMS(args))
197
198 #undef TRACE_EVENT_FLAGS
199 #define TRACE_EVENT_FLAGS(event, flag)
200
201 #undef TRACE_EVENT_PERF_PERM
202 #define TRACE_EVENT_PERF_PERM(event, expr...)
203
204 #include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
205
206 /*
207  * Stage 3 of the trace events.
208  *
209  * Override the macros in <trace/trace_events.h> to include the following:
210  *
211  * enum print_line_t
212  * trace_raw_output_<call>(struct trace_iterator *iter, int flags)
213  * {
214  *      struct trace_seq *s = &iter->seq;
215  *      struct trace_event_raw_<call> *field; <-- defined in stage 1
216  *      struct trace_entry *entry;
217  *      struct trace_seq *p = &iter->tmp_seq;
218  *      int ret;
219  *
220  *      entry = iter->ent;
221  *
222  *      if (entry->type != event_<call>->event.type) {
223  *              WARN_ON_ONCE(1);
224  *              return TRACE_TYPE_UNHANDLED;
225  *      }
226  *
227  *      field = (typeof(field))entry;
228  *
229  *      trace_seq_init(p);
230  *      ret = trace_seq_printf(s, "%s: ", <call>);
231  *      if (ret)
232  *              ret = trace_seq_printf(s, <TP_printk> "\n");
233  *      if (!ret)
234  *              return TRACE_TYPE_PARTIAL_LINE;
235  *
236  *      return TRACE_TYPE_HANDLED;
237  * }
238  *
239  * This is the method used to print the raw event to the trace
240  * output format. Note, this is not needed if the data is read
241  * in binary.
242  */
243
244 #undef __entry
245 #define __entry field
246
247 #undef TP_printk
248 #define TP_printk(fmt, args...) fmt "\n", args
249
250 #undef __get_dynamic_array
251 #define __get_dynamic_array(field)      \
252                 ((void *)__entry + (__entry->__data_loc_##field & 0xffff))
253
254 #undef __get_dynamic_array_len
255 #define __get_dynamic_array_len(field)  \
256                 ((__entry->__data_loc_##field >> 16) & 0xffff)
257
258 #undef __get_str
259 #define __get_str(field) ((char *)__get_dynamic_array(field))
260
261 #undef __get_bitmask
262 #define __get_bitmask(field)                                            \
263         ({                                                              \
264                 void *__bitmask = __get_dynamic_array(field);           \
265                 unsigned int __bitmask_size;                            \
266                 __bitmask_size = __get_dynamic_array_len(field);        \
267                 trace_print_bitmask_seq(p, __bitmask, __bitmask_size);  \
268         })
269
270 #undef __print_flags
271 #define __print_flags(flag, delim, flag_array...)                       \
272         ({                                                              \
273                 static const struct trace_print_flags __flags[] =       \
274                         { flag_array, { -1, NULL }};                    \
275                 trace_print_flags_seq(p, delim, flag, __flags); \
276         })
277
278 #undef __print_symbolic
279 #define __print_symbolic(value, symbol_array...)                        \
280         ({                                                              \
281                 static const struct trace_print_flags symbols[] =       \
282                         { symbol_array, { -1, NULL }};                  \
283                 trace_print_symbols_seq(p, value, symbols);             \
284         })
285
286 #undef __print_flags_u64
287 #undef __print_symbolic_u64
288 #if BITS_PER_LONG == 32
289 #define __print_flags_u64(flag, delim, flag_array...)                   \
290         ({                                                              \
291                 static const struct trace_print_flags_u64 __flags[] =   \
292                         { flag_array, { -1, NULL } };                   \
293                 trace_print_flags_seq_u64(p, delim, flag, __flags);     \
294         })
295
296 #define __print_symbolic_u64(value, symbol_array...)                    \
297         ({                                                              \
298                 static const struct trace_print_flags_u64 symbols[] =   \
299                         { symbol_array, { -1, NULL } };                 \
300                 trace_print_symbols_seq_u64(p, value, symbols); \
301         })
302 #else
303 #define __print_flags_u64(flag, delim, flag_array...)                   \
304                         __print_flags(flag, delim, flag_array)
305
306 #define __print_symbolic_u64(value, symbol_array...)                    \
307                         __print_symbolic(value, symbol_array)
308 #endif
309
310 #undef __print_hex
311 #define __print_hex(buf, buf_len)                                       \
312         trace_print_hex_seq(p, buf, buf_len, false)
313
314 #undef __print_hex_str
315 #define __print_hex_str(buf, buf_len)                                   \
316         trace_print_hex_seq(p, buf, buf_len, true)
317
318 #undef __print_array
319 #define __print_array(array, count, el_size)                            \
320         ({                                                              \
321                 BUILD_BUG_ON(el_size != 1 && el_size != 2 &&            \
322                              el_size != 4 && el_size != 8);             \
323                 trace_print_array_seq(p, array, count, el_size);        \
324         })
325
326 #undef DECLARE_EVENT_CLASS
327 #define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print)  \
328 static notrace enum print_line_t                                        \
329 trace_raw_output_##call(struct trace_iterator *iter, int flags,         \
330                         struct trace_event *trace_event)                \
331 {                                                                       \
332         struct trace_seq *s = &iter->seq;                               \
333         struct trace_seq __maybe_unused *p = &iter->tmp_seq;            \
334         struct trace_event_raw_##call *field;                           \
335         int ret;                                                        \
336                                                                         \
337         field = (typeof(field))iter->ent;                               \
338                                                                         \
339         ret = trace_raw_output_prep(iter, trace_event);                 \
340         if (ret != TRACE_TYPE_HANDLED)                                  \
341                 return ret;                                             \
342                                                                         \
343         trace_seq_printf(s, print);                                     \
344                                                                         \
345         return trace_handle_return(s);                                  \
346 }                                                                       \
347 static struct trace_event_functions trace_event_type_funcs_##call = {   \
348         .trace                  = trace_raw_output_##call,              \
349 };
350
351 #undef DEFINE_EVENT_PRINT
352 #define DEFINE_EVENT_PRINT(template, call, proto, args, print)          \
353 static notrace enum print_line_t                                        \
354 trace_raw_output_##call(struct trace_iterator *iter, int flags,         \
355                          struct trace_event *event)                     \
356 {                                                                       \
357         struct trace_event_raw_##template *field;                       \
358         struct trace_entry *entry;                                      \
359         struct trace_seq *p = &iter->tmp_seq;                           \
360                                                                         \
361         entry = iter->ent;                                              \
362                                                                         \
363         if (entry->type != event_##call.event.type) {                   \
364                 WARN_ON_ONCE(1);                                        \
365                 return TRACE_TYPE_UNHANDLED;                            \
366         }                                                               \
367                                                                         \
368         field = (typeof(field))entry;                                   \
369                                                                         \
370         trace_seq_init(p);                                              \
371         return trace_output_call(iter, #call, print);                   \
372 }                                                                       \
373 static struct trace_event_functions trace_event_type_funcs_##call = {   \
374         .trace                  = trace_raw_output_##call,              \
375 };
376
377 #include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
378
379 #undef __field_ext
380 #define __field_ext(type, item, filter_type)                            \
381         ret = trace_define_field(event_call, #type, #item,              \
382                                  offsetof(typeof(field), item),         \
383                                  sizeof(field.item),                    \
384                                  is_signed_type(type), filter_type);    \
385         if (ret)                                                        \
386                 return ret;
387
388 #undef __field_struct_ext
389 #define __field_struct_ext(type, item, filter_type)                     \
390         ret = trace_define_field(event_call, #type, #item,              \
391                                  offsetof(typeof(field), item),         \
392                                  sizeof(field.item),                    \
393                                  0, filter_type);                       \
394         if (ret)                                                        \
395                 return ret;
396
397 #undef __field
398 #define __field(type, item)     __field_ext(type, item, FILTER_OTHER)
399
400 #undef __field_struct
401 #define __field_struct(type, item) __field_struct_ext(type, item, FILTER_OTHER)
402
403 #undef __array
404 #define __array(type, item, len)                                        \
405         do {                                                            \
406                 char *type_str = #type"["__stringify(len)"]";           \
407                 BUILD_BUG_ON(len > MAX_FILTER_STR_VAL);                 \
408                 ret = trace_define_field(event_call, type_str, #item,   \
409                                  offsetof(typeof(field), item),         \
410                                  sizeof(field.item),                    \
411                                  is_signed_type(type), FILTER_OTHER);   \
412                 if (ret)                                                \
413                         return ret;                                     \
414         } while (0);
415
416 #undef __dynamic_array
417 #define __dynamic_array(type, item, len)                                       \
418         ret = trace_define_field(event_call, "__data_loc " #type "[]", #item,  \
419                                  offsetof(typeof(field), __data_loc_##item),   \
420                                  sizeof(field.__data_loc_##item),              \
421                                  is_signed_type(type), FILTER_OTHER);
422
423 #undef __string
424 #define __string(item, src) __dynamic_array(char, item, -1)
425
426 #undef __bitmask
427 #define __bitmask(item, nr_bits) __dynamic_array(unsigned long, item, -1)
428
429 #undef DECLARE_EVENT_CLASS
430 #define DECLARE_EVENT_CLASS(call, proto, args, tstruct, func, print)    \
431 static int notrace __init                                               \
432 trace_event_define_fields_##call(struct trace_event_call *event_call)   \
433 {                                                                       \
434         struct trace_event_raw_##call field;                            \
435         int ret;                                                        \
436                                                                         \
437         tstruct;                                                        \
438                                                                         \
439         return ret;                                                     \
440 }
441
442 #undef DEFINE_EVENT
443 #define DEFINE_EVENT(template, name, proto, args)
444
445 #undef DEFINE_EVENT_PRINT
446 #define DEFINE_EVENT_PRINT(template, name, proto, args, print)  \
447         DEFINE_EVENT(template, name, PARAMS(proto), PARAMS(args))
448
449 #include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
450
451 /*
452  * remember the offset of each array from the beginning of the event.
453  */
454
455 #undef __entry
456 #define __entry entry
457
458 #undef __field
459 #define __field(type, item)
460
461 #undef __field_ext
462 #define __field_ext(type, item, filter_type)
463
464 #undef __field_struct
465 #define __field_struct(type, item)
466
467 #undef __field_struct_ext
468 #define __field_struct_ext(type, item, filter_type)
469
470 #undef __array
471 #define __array(type, item, len)
472
473 #undef __dynamic_array
474 #define __dynamic_array(type, item, len)                                \
475         __item_length = (len) * sizeof(type);                           \
476         __data_offsets->item = __data_size +                            \
477                                offsetof(typeof(*entry), __data);        \
478         __data_offsets->item |= __item_length << 16;                    \
479         __data_size += __item_length;
480
481 #undef __string
482 #define __string(item, src) __dynamic_array(char, item,                 \
483                     strlen((src) ? (const char *)(src) : "(null)") + 1)
484
485 /*
486  * __bitmask_size_in_bytes_raw is the number of bytes needed to hold
487  * num_possible_cpus().
488  */
489 #define __bitmask_size_in_bytes_raw(nr_bits)    \
490         (((nr_bits) + 7) / 8)
491
492 #define __bitmask_size_in_longs(nr_bits)                        \
493         ((__bitmask_size_in_bytes_raw(nr_bits) +                \
494           ((BITS_PER_LONG / 8) - 1)) / (BITS_PER_LONG / 8))
495
496 /*
497  * __bitmask_size_in_bytes is the number of bytes needed to hold
498  * num_possible_cpus() padded out to the nearest long. This is what
499  * is saved in the buffer, just to be consistent.
500  */
501 #define __bitmask_size_in_bytes(nr_bits)                                \
502         (__bitmask_size_in_longs(nr_bits) * (BITS_PER_LONG / 8))
503
504 #undef __bitmask
505 #define __bitmask(item, nr_bits) __dynamic_array(unsigned long, item,   \
506                                          __bitmask_size_in_longs(nr_bits))
507
508 #undef DECLARE_EVENT_CLASS
509 #define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print)  \
510 static inline notrace int trace_event_get_offsets_##call(               \
511         struct trace_event_data_offsets_##call *__data_offsets, proto)  \
512 {                                                                       \
513         int __data_size = 0;                                            \
514         int __maybe_unused __item_length;                               \
515         struct trace_event_raw_##call __maybe_unused *entry;            \
516                                                                         \
517         tstruct;                                                        \
518                                                                         \
519         return __data_size;                                             \
520 }
521
522 #undef DEFINE_EVENT
523 #define DEFINE_EVENT(template, name, proto, args)
524
525 #undef DEFINE_EVENT_PRINT
526 #define DEFINE_EVENT_PRINT(template, name, proto, args, print)  \
527         DEFINE_EVENT(template, name, PARAMS(proto), PARAMS(args))
528
529 #include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
530
531 /*
532  * Stage 4 of the trace events.
533  *
534  * Override the macros in <trace/trace_events.h> to include the following:
535  *
536  * For those macros defined with TRACE_EVENT:
537  *
538  * static struct trace_event_call event_<call>;
539  *
540  * static void trace_event_raw_event_<call>(void *__data, proto)
541  * {
542  *      struct trace_event_file *trace_file = __data;
543  *      struct trace_event_call *event_call = trace_file->event_call;
544  *      struct trace_event_data_offsets_<call> __maybe_unused __data_offsets;
545  *      unsigned long eflags = trace_file->flags;
546  *      enum event_trigger_type __tt = ETT_NONE;
547  *      struct ring_buffer_event *event;
548  *      struct trace_event_raw_<call> *entry; <-- defined in stage 1
549  *      struct ring_buffer *buffer;
550  *      unsigned long irq_flags;
551  *      int __data_size;
552  *      int pc;
553  *
554  *      if (!(eflags & EVENT_FILE_FL_TRIGGER_COND)) {
555  *              if (eflags & EVENT_FILE_FL_TRIGGER_MODE)
556  *                      event_triggers_call(trace_file, NULL);
557  *              if (eflags & EVENT_FILE_FL_SOFT_DISABLED)
558  *                      return;
559  *      }
560  *
561  *      local_save_flags(irq_flags);
562  *      pc = preempt_count();
563  *
564  *      __data_size = trace_event_get_offsets_<call>(&__data_offsets, args);
565  *
566  *      event = trace_event_buffer_lock_reserve(&buffer, trace_file,
567  *                                event_<call>->event.type,
568  *                                sizeof(*entry) + __data_size,
569  *                                irq_flags, pc);
570  *      if (!event)
571  *              return;
572  *      entry   = ring_buffer_event_data(event);
573  *
574  *      { <assign>; }  <-- Here we assign the entries by the __field and
575  *                         __array macros.
576  *
577  *      if (eflags & EVENT_FILE_FL_TRIGGER_COND)
578  *              __tt = event_triggers_call(trace_file, entry);
579  *
580  *      if (test_bit(EVENT_FILE_FL_SOFT_DISABLED_BIT,
581  *                   &trace_file->flags))
582  *              ring_buffer_discard_commit(buffer, event);
583  *      else if (!filter_check_discard(trace_file, entry, buffer, event))
584  *              trace_buffer_unlock_commit(buffer, event, irq_flags, pc);
585  *
586  *      if (__tt)
587  *              event_triggers_post_call(trace_file, __tt);
588  * }
589  *
590  * static struct trace_event ftrace_event_type_<call> = {
591  *      .trace                  = trace_raw_output_<call>, <-- stage 2
592  * };
593  *
594  * static char print_fmt_<call>[] = <TP_printk>;
595  *
596  * static struct trace_event_class __used event_class_<template> = {
597  *      .system                 = "<system>",
598  *      .define_fields          = trace_event_define_fields_<call>,
599  *      .fields                 = LIST_HEAD_INIT(event_class_##call.fields),
600  *      .raw_init               = trace_event_raw_init,
601  *      .probe                  = trace_event_raw_event_##call,
602  *      .reg                    = trace_event_reg,
603  * };
604  *
605  * static struct trace_event_call event_<call> = {
606  *      .class                  = event_class_<template>,
607  *      {
608  *              .tp                     = &__tracepoint_<call>,
609  *      },
610  *      .event                  = &ftrace_event_type_<call>,
611  *      .print_fmt              = print_fmt_<call>,
612  *      .flags                  = TRACE_EVENT_FL_TRACEPOINT,
613  * };
614  * // its only safe to use pointers when doing linker tricks to
615  * // create an array.
616  * static struct trace_event_call __used
617  * __attribute__((section("_ftrace_events"))) *__event_<call> = &event_<call>;
618  *
619  */
620
621 #ifdef CONFIG_PERF_EVENTS
622
623 #define _TRACE_PERF_PROTO(call, proto)                                  \
624         static notrace void                                             \
625         perf_trace_##call(void *__data, proto);
626
627 #define _TRACE_PERF_INIT(call)                                          \
628         .perf_probe             = perf_trace_##call,
629
630 #else
631 #define _TRACE_PERF_PROTO(call, proto)
632 #define _TRACE_PERF_INIT(call)
633 #endif /* CONFIG_PERF_EVENTS */
634
635 #undef __entry
636 #define __entry entry
637
638 #undef __field
639 #define __field(type, item)
640
641 #undef __field_struct
642 #define __field_struct(type, item)
643
644 #undef __array
645 #define __array(type, item, len)
646
647 #undef __dynamic_array
648 #define __dynamic_array(type, item, len)                                \
649         __entry->__data_loc_##item = __data_offsets.item;
650
651 #undef __string
652 #define __string(item, src) __dynamic_array(char, item, -1)
653
654 #undef __assign_str
655 #define __assign_str(dst, src)                                          \
656         strcpy(__get_str(dst), (src) ? (const char *)(src) : "(null)");
657
658 #undef __bitmask
659 #define __bitmask(item, nr_bits) __dynamic_array(unsigned long, item, -1)
660
661 #undef __get_bitmask
662 #define __get_bitmask(field) (char *)__get_dynamic_array(field)
663
664 #undef __assign_bitmask
665 #define __assign_bitmask(dst, src, nr_bits)                                     \
666         memcpy(__get_bitmask(dst), (src), __bitmask_size_in_bytes(nr_bits))
667
668 #undef TP_fast_assign
669 #define TP_fast_assign(args...) args
670
671 #undef __perf_count
672 #define __perf_count(c) (c)
673
674 #undef __perf_task
675 #define __perf_task(t)  (t)
676
677 #undef DECLARE_EVENT_CLASS
678 #define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print)  \
679                                                                         \
680 static notrace void                                                     \
681 trace_event_raw_event_##call(void *__data, proto)                       \
682 {                                                                       \
683         struct trace_event_file *trace_file = __data;                   \
684         struct trace_event_data_offsets_##call __maybe_unused __data_offsets;\
685         struct trace_event_buffer fbuffer;                              \
686         struct trace_event_raw_##call *entry;                           \
687         int __data_size;                                                \
688                                                                         \
689         if (trace_trigger_soft_disabled(trace_file))                    \
690                 return;                                                 \
691                                                                         \
692         __data_size = trace_event_get_offsets_##call(&__data_offsets, args); \
693                                                                         \
694         entry = trace_event_buffer_reserve(&fbuffer, trace_file,        \
695                                  sizeof(*entry) + __data_size);         \
696                                                                         \
697         if (!entry)                                                     \
698                 return;                                                 \
699                                                                         \
700         tstruct                                                         \
701                                                                         \
702         { assign; }                                                     \
703                                                                         \
704         trace_event_buffer_commit(&fbuffer);                            \
705 }
706 /*
707  * The ftrace_test_probe is compiled out, it is only here as a build time check
708  * to make sure that if the tracepoint handling changes, the ftrace probe will
709  * fail to compile unless it too is updated.
710  */
711
712 #undef DEFINE_EVENT
713 #define DEFINE_EVENT(template, call, proto, args)                       \
714 static inline void ftrace_test_probe_##call(void)                       \
715 {                                                                       \
716         check_trace_callback_type_##call(trace_event_raw_event_##template); \
717 }
718
719 #undef DEFINE_EVENT_PRINT
720 #define DEFINE_EVENT_PRINT(template, name, proto, args, print)
721
722 #include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
723
724 #undef __entry
725 #define __entry REC
726
727 #undef __print_flags
728 #undef __print_symbolic
729 #undef __print_hex
730 #undef __print_hex_str
731 #undef __get_dynamic_array
732 #undef __get_dynamic_array_len
733 #undef __get_str
734 #undef __get_bitmask
735 #undef __print_array
736
737 #undef TP_printk
738 #define TP_printk(fmt, args...) "\"" fmt "\", "  __stringify(args)
739
740 #undef DECLARE_EVENT_CLASS
741 #define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print)  \
742 _TRACE_PERF_PROTO(call, PARAMS(proto));                                 \
743 static char print_fmt_##call[] = print;                                 \
744 static struct trace_event_class __used __refdata event_class_##call = { \
745         .system                 = TRACE_SYSTEM_STRING,                  \
746         .define_fields          = trace_event_define_fields_##call,     \
747         .fields                 = LIST_HEAD_INIT(event_class_##call.fields),\
748         .raw_init               = trace_event_raw_init,                 \
749         .probe                  = trace_event_raw_event_##call,         \
750         .reg                    = trace_event_reg,                      \
751         _TRACE_PERF_INIT(call)                                          \
752 };
753
754 #undef DEFINE_EVENT
755 #define DEFINE_EVENT(template, call, proto, args)                       \
756                                                                         \
757 static struct trace_event_call __used event_##call = {                  \
758         .class                  = &event_class_##template,              \
759         {                                                               \
760                 .tp                     = &__tracepoint_##call,         \
761         },                                                              \
762         .event.funcs            = &trace_event_type_funcs_##template,   \
763         .print_fmt              = print_fmt_##template,                 \
764         .flags                  = TRACE_EVENT_FL_TRACEPOINT,            \
765 };                                                                      \
766 static struct trace_event_call __used                                   \
767 __attribute__((section("_ftrace_events"))) *__event_##call = &event_##call
768
769 #undef DEFINE_EVENT_PRINT
770 #define DEFINE_EVENT_PRINT(template, call, proto, args, print)          \
771                                                                         \
772 static char print_fmt_##call[] = print;                                 \
773                                                                         \
774 static struct trace_event_call __used event_##call = {                  \
775         .class                  = &event_class_##template,              \
776         {                                                               \
777                 .tp                     = &__tracepoint_##call,         \
778         },                                                              \
779         .event.funcs            = &trace_event_type_funcs_##call,       \
780         .print_fmt              = print_fmt_##call,                     \
781         .flags                  = TRACE_EVENT_FL_TRACEPOINT,            \
782 };                                                                      \
783 static struct trace_event_call __used                                   \
784 __attribute__((section("_ftrace_events"))) *__event_##call = &event_##call
785
786 #include TRACE_INCLUDE(TRACE_INCLUDE_FILE)