blob: fb783d94fc545a6b6f3cd291d9f0a693d6497577 [file] [log] [blame]
Steven Rostedtf42c85e2009-04-13 12:25:37 -04001/*
2 * Stage 1 of the trace events.
3 *
4 * Override the macros in <trace/trace_events.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#include <linux/ftrace_event.h>
20
Steven Rostedtff038f52009-11-18 20:27:27 -050021/*
Ingo Molnar091ad362009-11-26 09:04:55 +010022 * DECLARE_EVENT_CLASS can be used to add a generic function
Steven Rostedtff038f52009-11-18 20:27:27 -050023 * handlers for events. That is, if all events have the same
24 * parameters and just have distinct trace points.
25 * Each tracepoint can be defined with DEFINE_EVENT and that
Ingo Molnar091ad362009-11-26 09:04:55 +010026 * will map the DECLARE_EVENT_CLASS to the tracepoint.
Steven Rostedtff038f52009-11-18 20:27:27 -050027 *
28 * TRACE_EVENT is a one to one mapping between tracepoint and template.
29 */
30#undef TRACE_EVENT
31#define TRACE_EVENT(name, proto, args, tstruct, assign, print) \
Ingo Molnar091ad362009-11-26 09:04:55 +010032 DECLARE_EVENT_CLASS(name, \
Steven Rostedtff038f52009-11-18 20:27:27 -050033 PARAMS(proto), \
34 PARAMS(args), \
35 PARAMS(tstruct), \
36 PARAMS(assign), \
37 PARAMS(print)); \
38 DEFINE_EVENT(name, name, PARAMS(proto), PARAMS(args));
39
40
Steven Rostedtf42c85e2009-04-13 12:25:37 -040041#undef __field
42#define __field(type, item) type item;
43
Li Zefan43b51ea2009-08-07 10:33:22 +080044#undef __field_ext
45#define __field_ext(type, item, filter_type) type item;
46
Li Zefan7fcb7c42009-06-01 15:35:46 +080047#undef __array
48#define __array(type, item, len) type item[len];
49
50#undef __dynamic_array
Li Zefan7d536cb2009-07-16 10:54:02 +080051#define __dynamic_array(type, item, len) u32 __data_loc_##item;
Li Zefan7fcb7c42009-06-01 15:35:46 +080052
Frederic Weisbecker9cbf1172009-04-19 04:51:29 +020053#undef __string
Li Zefan7fcb7c42009-06-01 15:35:46 +080054#define __string(item, src) __dynamic_array(char, item, -1)
Frederic Weisbecker9cbf1172009-04-19 04:51:29 +020055
Steven Rostedtf42c85e2009-04-13 12:25:37 -040056#undef TP_STRUCT__entry
57#define TP_STRUCT__entry(args...) args
58
Ingo Molnar091ad362009-11-26 09:04:55 +010059#undef DECLARE_EVENT_CLASS
60#define DECLARE_EVENT_CLASS(name, proto, args, tstruct, assign, print) \
Steven Rostedtff038f52009-11-18 20:27:27 -050061 struct ftrace_raw_##name { \
62 struct trace_entry ent; \
63 tstruct \
64 char __data[0]; \
Steven Rostedt8f082012010-04-20 10:47:33 -040065 }; \
66 \
67 static struct ftrace_event_class event_class_##name;
68
Steven Rostedtff038f52009-11-18 20:27:27 -050069#undef DEFINE_EVENT
70#define DEFINE_EVENT(template, name, proto, args) \
Steven Rostedt49c17742010-05-25 06:19:35 -070071 static struct ftrace_event_call __used \
Jeff Mahoney86c38a32010-02-24 13:59:23 -050072 __attribute__((__aligned__(4))) event_##name
Steven Rostedtf42c85e2009-04-13 12:25:37 -040073
Steven Rostedte5bc9722009-11-18 20:36:26 -050074#undef DEFINE_EVENT_PRINT
75#define DEFINE_EVENT_PRINT(template, name, proto, args, print) \
76 DEFINE_EVENT(template, name, PARAMS(proto), PARAMS(args))
77
Frederic Weisbecker0dd7b742009-08-28 00:50:06 +020078#undef __cpparg
79#define __cpparg(arg...) arg
80
Josh Stone97419872009-08-24 14:43:13 -070081/* Callbacks are meaningless to ftrace. */
82#undef TRACE_EVENT_FN
Frederic Weisbecker0dd7b742009-08-28 00:50:06 +020083#define TRACE_EVENT_FN(name, proto, args, tstruct, \
84 assign, print, reg, unreg) \
85 TRACE_EVENT(name, __cpparg(proto), __cpparg(args), \
86 __cpparg(tstruct), __cpparg(assign), __cpparg(print)) \
Josh Stone97419872009-08-24 14:43:13 -070087
Steven Rostedtf42c85e2009-04-13 12:25:37 -040088#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
89
Frederic Weisbecker9cbf1172009-04-19 04:51:29 +020090
Steven Rostedtf42c85e2009-04-13 12:25:37 -040091/*
92 * Stage 2 of the trace events.
93 *
Frederic Weisbecker9cbf1172009-04-19 04:51:29 +020094 * Include the following:
95 *
Li Zefan7fcb7c42009-06-01 15:35:46 +080096 * struct ftrace_data_offsets_<call> {
Li Zefan7d536cb2009-07-16 10:54:02 +080097 * u32 <item1>;
98 * u32 <item2>;
Frederic Weisbecker9cbf1172009-04-19 04:51:29 +020099 * [...]
100 * };
101 *
Li Zefan7d536cb2009-07-16 10:54:02 +0800102 * The __dynamic_array() macro will create each u32 <item>, this is
Li Zefan7fcb7c42009-06-01 15:35:46 +0800103 * to keep the offset of each array from the beginning of the event.
Li Zefan7d536cb2009-07-16 10:54:02 +0800104 * The size of an array is also encoded, in the higher 16 bits of <item>.
Frederic Weisbecker9cbf1172009-04-19 04:51:29 +0200105 */
106
Frederic Weisbecker9cbf1172009-04-19 04:51:29 +0200107#undef __field
Li Zefan43b51ea2009-08-07 10:33:22 +0800108#define __field(type, item)
109
110#undef __field_ext
111#define __field_ext(type, item, filter_type)
Frederic Weisbecker9cbf1172009-04-19 04:51:29 +0200112
Li Zefan7fcb7c42009-06-01 15:35:46 +0800113#undef __array
114#define __array(type, item, len)
115
116#undef __dynamic_array
Li Zefan7d536cb2009-07-16 10:54:02 +0800117#define __dynamic_array(type, item, len) u32 item;
Li Zefan7fcb7c42009-06-01 15:35:46 +0800118
Frederic Weisbecker9cbf1172009-04-19 04:51:29 +0200119#undef __string
Li Zefan7fcb7c42009-06-01 15:35:46 +0800120#define __string(item, src) __dynamic_array(char, item, -1)
Frederic Weisbecker9cbf1172009-04-19 04:51:29 +0200121
Ingo Molnar091ad362009-11-26 09:04:55 +0100122#undef DECLARE_EVENT_CLASS
123#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \
Li Zefan7fcb7c42009-06-01 15:35:46 +0800124 struct ftrace_data_offsets_##call { \
Frederic Weisbecker9cbf1172009-04-19 04:51:29 +0200125 tstruct; \
126 };
127
Steven Rostedtff038f52009-11-18 20:27:27 -0500128#undef DEFINE_EVENT
129#define DEFINE_EVENT(template, name, proto, args)
130
Steven Rostedte5bc9722009-11-18 20:36:26 -0500131#undef DEFINE_EVENT_PRINT
132#define DEFINE_EVENT_PRINT(template, name, proto, args, print) \
133 DEFINE_EVENT(template, name, PARAMS(proto), PARAMS(args))
134
Frederic Weisbecker9cbf1172009-04-19 04:51:29 +0200135#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
136
137/*
138 * Stage 3 of the trace events.
139 *
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400140 * Override the macros in <trace/trace_events.h> to include the following:
141 *
142 * enum print_line_t
143 * ftrace_raw_output_<call>(struct trace_iterator *iter, int flags)
144 * {
145 * struct trace_seq *s = &iter->seq;
146 * struct ftrace_raw_<call> *field; <-- defined in stage 1
147 * struct trace_entry *entry;
Lai Jiangshanbc289ae2010-06-03 18:26:24 +0800148 * struct trace_seq *p = &iter->tmp_seq;
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400149 * int ret;
150 *
151 * entry = iter->ent;
152 *
Steven Rostedt32c0eda2010-04-23 10:38:03 -0400153 * if (entry->type != event_<call>->event.type) {
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400154 * WARN_ON_ONCE(1);
155 * return TRACE_TYPE_UNHANDLED;
156 * }
157 *
158 * field = (typeof(field))entry;
159 *
Steven Whitehouse56d8bd32009-06-03 14:52:03 +0100160 * trace_seq_init(p);
Li Zefan50354a82010-03-24 10:58:24 +0800161 * ret = trace_seq_printf(s, "%s: ", <call>);
162 * if (ret)
163 * ret = trace_seq_printf(s, <TP_printk> "\n");
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400164 * if (!ret)
165 * return TRACE_TYPE_PARTIAL_LINE;
166 *
167 * return TRACE_TYPE_HANDLED;
168 * }
169 *
170 * This is the method used to print the raw event to the trace
171 * output format. Note, this is not needed if the data is read
172 * in binary.
173 */
174
175#undef __entry
176#define __entry field
177
178#undef TP_printk
179#define TP_printk(fmt, args...) fmt "\n", args
180
Li Zefan7fcb7c42009-06-01 15:35:46 +0800181#undef __get_dynamic_array
182#define __get_dynamic_array(field) \
Li Zefan7d536cb2009-07-16 10:54:02 +0800183 ((void *)__entry + (__entry->__data_loc_##field & 0xffff))
Li Zefan7fcb7c42009-06-01 15:35:46 +0800184
Frederic Weisbecker9cbf1172009-04-19 04:51:29 +0200185#undef __get_str
Li Zefan7fcb7c42009-06-01 15:35:46 +0800186#define __get_str(field) (char *)__get_dynamic_array(field)
Frederic Weisbecker9cbf1172009-04-19 04:51:29 +0200187
Steven Rostedtbe74b732009-05-26 20:25:22 +0200188#undef __print_flags
189#define __print_flags(flag, delim, flag_array...) \
190 ({ \
Steven Rostedta48f4942009-09-14 11:18:02 -0400191 static const struct trace_print_flags __flags[] = \
Steven Rostedtbe74b732009-05-26 20:25:22 +0200192 { flag_array, { -1, NULL }}; \
Steven Rostedta48f4942009-09-14 11:18:02 -0400193 ftrace_print_flags_seq(p, delim, flag, __flags); \
Steven Rostedtbe74b732009-05-26 20:25:22 +0200194 })
195
Steven Rostedt0f4fc292009-05-20 19:21:47 -0400196#undef __print_symbolic
197#define __print_symbolic(value, symbol_array...) \
198 ({ \
199 static const struct trace_print_flags symbols[] = \
200 { symbol_array, { -1, NULL }}; \
201 ftrace_print_symbols_seq(p, value, symbols); \
202 })
203
Kei Tokunaga5a2e3992010-04-01 20:40:58 +0900204#undef __print_hex
205#define __print_hex(buf, buf_len) ftrace_print_hex_seq(p, buf, buf_len)
206
Ingo Molnar091ad362009-11-26 09:04:55 +0100207#undef DECLARE_EVENT_CLASS
208#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \
Steven Rostedt83f0d532010-02-16 10:38:47 -0500209static notrace enum print_line_t \
Steven Rostedt80decc72010-04-23 10:00:22 -0400210ftrace_raw_output_##call(struct trace_iterator *iter, int flags, \
211 struct trace_event *trace_event) \
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400212{ \
Steven Rostedt80decc72010-04-23 10:00:22 -0400213 struct ftrace_event_call *event; \
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400214 struct trace_seq *s = &iter->seq; \
215 struct ftrace_raw_##call *field; \
216 struct trace_entry *entry; \
Lai Jiangshanbc289ae2010-06-03 18:26:24 +0800217 struct trace_seq *p = &iter->tmp_seq; \
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400218 int ret; \
219 \
Steven Rostedt80decc72010-04-23 10:00:22 -0400220 event = container_of(trace_event, struct ftrace_event_call, \
221 event); \
222 \
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400223 entry = iter->ent; \
224 \
Steven Rostedt32c0eda2010-04-23 10:38:03 -0400225 if (entry->type != event->event.type) { \
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400226 WARN_ON_ONCE(1); \
227 return TRACE_TYPE_UNHANDLED; \
228 } \
229 \
230 field = (typeof(field))entry; \
231 \
Steven Whitehouse56d8bd32009-06-03 14:52:03 +0100232 trace_seq_init(p); \
Steven Rostedt80decc72010-04-23 10:00:22 -0400233 ret = trace_seq_printf(s, "%s: ", event->name); \
Steven Rostedtff038f52009-11-18 20:27:27 -0500234 if (ret) \
235 ret = trace_seq_printf(s, print); \
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400236 if (!ret) \
237 return TRACE_TYPE_PARTIAL_LINE; \
238 \
239 return TRACE_TYPE_HANDLED; \
Steven Rostedt80decc72010-04-23 10:00:22 -0400240} \
241static struct trace_event_functions ftrace_event_type_funcs_##call = { \
242 .trace = ftrace_raw_output_##call, \
243};
Steven Rostedtff038f52009-11-18 20:27:27 -0500244
Steven Rostedte5bc9722009-11-18 20:36:26 -0500245#undef DEFINE_EVENT_PRINT
246#define DEFINE_EVENT_PRINT(template, call, proto, args, print) \
Steven Rostedt83f0d532010-02-16 10:38:47 -0500247static notrace enum print_line_t \
Steven Rostedta9a57762010-04-22 18:46:14 -0400248ftrace_raw_output_##call(struct trace_iterator *iter, int flags, \
249 struct trace_event *event) \
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400250{ \
251 struct trace_seq *s = &iter->seq; \
Steven Rostedte5bc9722009-11-18 20:36:26 -0500252 struct ftrace_raw_##template *field; \
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400253 struct trace_entry *entry; \
Lai Jiangshanbc289ae2010-06-03 18:26:24 +0800254 struct trace_seq *p = &iter->tmp_seq; \
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400255 int ret; \
256 \
257 entry = iter->ent; \
258 \
Steven Rostedt32c0eda2010-04-23 10:38:03 -0400259 if (entry->type != event_##call.event.type) { \
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400260 WARN_ON_ONCE(1); \
261 return TRACE_TYPE_UNHANDLED; \
262 } \
263 \
264 field = (typeof(field))entry; \
265 \
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400266 trace_seq_init(p); \
Steven Rostedte5bc9722009-11-18 20:36:26 -0500267 ret = trace_seq_printf(s, "%s: ", #call); \
268 if (ret) \
269 ret = trace_seq_printf(s, print); \
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400270 if (!ret) \
271 return TRACE_TYPE_PARTIAL_LINE; \
272 \
273 return TRACE_TYPE_HANDLED; \
Steven Rostedt80decc72010-04-23 10:00:22 -0400274} \
275static struct trace_event_functions ftrace_event_type_funcs_##call = { \
276 .trace = ftrace_raw_output_##call, \
277};
Steven Rostedte5bc9722009-11-18 20:36:26 -0500278
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400279#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
280
Li Zefan43b51ea2009-08-07 10:33:22 +0800281#undef __field_ext
282#define __field_ext(type, item, filter_type) \
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400283 ret = trace_define_field(event_call, #type, #item, \
284 offsetof(typeof(field), item), \
Li Zefan43b51ea2009-08-07 10:33:22 +0800285 sizeof(field.item), \
286 is_signed_type(type), filter_type); \
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400287 if (ret) \
288 return ret;
289
Li Zefan43b51ea2009-08-07 10:33:22 +0800290#undef __field
291#define __field(type, item) __field_ext(type, item, FILTER_OTHER)
292
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400293#undef __array
294#define __array(type, item, len) \
295 BUILD_BUG_ON(len > MAX_FILTER_STR_VAL); \
296 ret = trace_define_field(event_call, #type "[" #len "]", #item, \
297 offsetof(typeof(field), item), \
Lai Jiangshanfb7ae982009-12-15 15:39:38 +0800298 sizeof(field.item), \
299 is_signed_type(type), FILTER_OTHER); \
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400300 if (ret) \
301 return ret;
302
Li Zefan7fcb7c42009-06-01 15:35:46 +0800303#undef __dynamic_array
304#define __dynamic_array(type, item, len) \
Lai Jiangshan68fd60a2009-07-16 10:53:34 +0800305 ret = trace_define_field(event_call, "__data_loc " #type "[]", #item, \
Li Zefan43b51ea2009-08-07 10:33:22 +0800306 offsetof(typeof(field), __data_loc_##item), \
Lai Jiangshanfb7ae982009-12-15 15:39:38 +0800307 sizeof(field.__data_loc_##item), \
308 is_signed_type(type), FILTER_OTHER);
Li Zefan7fcb7c42009-06-01 15:35:46 +0800309
Frederic Weisbecker9cbf1172009-04-19 04:51:29 +0200310#undef __string
Li Zefan7fcb7c42009-06-01 15:35:46 +0800311#define __string(item, src) __dynamic_array(char, item, -1)
Frederic Weisbecker9cbf1172009-04-19 04:51:29 +0200312
Ingo Molnar091ad362009-11-26 09:04:55 +0100313#undef DECLARE_EVENT_CLASS
314#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, func, print) \
Steven Rostedt83f0d532010-02-16 10:38:47 -0500315static int notrace \
Li Zefan14be96c2009-08-19 15:53:52 +0800316ftrace_define_fields_##call(struct ftrace_event_call *event_call) \
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400317{ \
318 struct ftrace_raw_##call field; \
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400319 int ret; \
320 \
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400321 tstruct; \
322 \
323 return ret; \
324}
325
Steven Rostedtff038f52009-11-18 20:27:27 -0500326#undef DEFINE_EVENT
327#define DEFINE_EVENT(template, name, proto, args)
328
Steven Rostedte5bc9722009-11-18 20:36:26 -0500329#undef DEFINE_EVENT_PRINT
330#define DEFINE_EVENT_PRINT(template, name, proto, args, print) \
331 DEFINE_EVENT(template, name, PARAMS(proto), PARAMS(args))
332
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400333#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
334
335/*
Li Zefan7fcb7c42009-06-01 15:35:46 +0800336 * remember the offset of each array from the beginning of the event.
337 */
338
339#undef __entry
340#define __entry entry
341
342#undef __field
343#define __field(type, item)
344
Li Zefan43b51ea2009-08-07 10:33:22 +0800345#undef __field_ext
346#define __field_ext(type, item, filter_type)
347
Li Zefan7fcb7c42009-06-01 15:35:46 +0800348#undef __array
349#define __array(type, item, len)
350
351#undef __dynamic_array
352#define __dynamic_array(type, item, len) \
353 __data_offsets->item = __data_size + \
354 offsetof(typeof(*entry), __data); \
Li Zefan7d536cb2009-07-16 10:54:02 +0800355 __data_offsets->item |= (len * sizeof(type)) << 16; \
Li Zefan7fcb7c42009-06-01 15:35:46 +0800356 __data_size += (len) * sizeof(type);
357
358#undef __string
Steven Rostedtff038f52009-11-18 20:27:27 -0500359#define __string(item, src) __dynamic_array(char, item, strlen(src) + 1)
Li Zefan7fcb7c42009-06-01 15:35:46 +0800360
Ingo Molnar091ad362009-11-26 09:04:55 +0100361#undef DECLARE_EVENT_CLASS
362#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \
Steven Rostedt83f0d532010-02-16 10:38:47 -0500363static inline notrace int ftrace_get_offsets_##call( \
Li Zefan7fcb7c42009-06-01 15:35:46 +0800364 struct ftrace_data_offsets_##call *__data_offsets, proto) \
365{ \
366 int __data_size = 0; \
367 struct ftrace_raw_##call __maybe_unused *entry; \
368 \
369 tstruct; \
370 \
371 return __data_size; \
372}
373
Steven Rostedtff038f52009-11-18 20:27:27 -0500374#undef DEFINE_EVENT
375#define DEFINE_EVENT(template, name, proto, args)
376
Steven Rostedte5bc9722009-11-18 20:36:26 -0500377#undef DEFINE_EVENT_PRINT
378#define DEFINE_EVENT_PRINT(template, name, proto, args, print) \
379 DEFINE_EVENT(template, name, PARAMS(proto), PARAMS(args))
380
Li Zefan7fcb7c42009-06-01 15:35:46 +0800381#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
382
383/*
Frederic Weisbecker9cbf1172009-04-19 04:51:29 +0200384 * Stage 4 of the trace events.
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400385 *
386 * Override the macros in <trace/trace_events.h> to include the following:
387 *
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400388 * For those macros defined with TRACE_EVENT:
389 *
390 * static struct ftrace_event_call event_<call>;
391 *
Steven Rostedt22392912010-04-21 12:27:06 -0400392 * static void ftrace_raw_event_<call>(void *__data, proto)
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400393 * {
Steven Rostedt22392912010-04-21 12:27:06 -0400394 * struct ftrace_event_call *event_call = __data;
Li Zefan50354a82010-03-24 10:58:24 +0800395 * struct ftrace_data_offsets_<call> __maybe_unused __data_offsets;
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400396 * struct ring_buffer_event *event;
397 * struct ftrace_raw_<call> *entry; <-- defined in stage 1
Steven Rostedte77405a2009-09-02 14:17:06 -0400398 * struct ring_buffer *buffer;
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400399 * unsigned long irq_flags;
Li Zefan50354a82010-03-24 10:58:24 +0800400 * int __data_size;
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400401 * int pc;
402 *
403 * local_save_flags(irq_flags);
404 * pc = preempt_count();
405 *
Li Zefan50354a82010-03-24 10:58:24 +0800406 * __data_size = ftrace_get_offsets_<call>(&__data_offsets, args);
407 *
Steven Rostedte77405a2009-09-02 14:17:06 -0400408 * event = trace_current_buffer_lock_reserve(&buffer,
Steven Rostedt32c0eda2010-04-23 10:38:03 -0400409 * event_<call>->event.type,
Li Zefan50354a82010-03-24 10:58:24 +0800410 * sizeof(*entry) + __data_size,
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400411 * irq_flags, pc);
412 * if (!event)
413 * return;
414 * entry = ring_buffer_event_data(event);
415 *
Li Zefan50354a82010-03-24 10:58:24 +0800416 * { <assign>; } <-- Here we assign the entries by the __field and
417 * __array macros.
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400418 *
Li Zefan50354a82010-03-24 10:58:24 +0800419 * if (!filter_current_check_discard(buffer, event_call, entry, event))
420 * trace_current_buffer_unlock_commit(buffer,
421 * event, irq_flags, pc);
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400422 * }
423 *
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400424 * static struct trace_event ftrace_event_type_<call> = {
425 * .trace = ftrace_raw_output_<call>, <-- stage 2
426 * };
427 *
Li Zefan50354a82010-03-24 10:58:24 +0800428 * static const char print_fmt_<call>[] = <TP_printk>;
429 *
Steven Rostedt8f082012010-04-20 10:47:33 -0400430 * static struct ftrace_event_class __used event_class_<template> = {
431 * .system = "<system>",
Steven Rostedt2e33af02010-04-22 10:35:55 -0400432 * .define_fields = ftrace_define_fields_<call>,
Steven Rostedt0405ab82010-04-22 11:46:44 -0400433 * .fields = LIST_HEAD_INIT(event_class_##call.fields),
434 * .raw_init = trace_event_raw_init,
435 * .probe = ftrace_raw_event_##call,
Steven Rostedta1d0ce82010-06-08 11:22:06 -0400436 * .reg = ftrace_event_reg,
Steven Rostedt8f082012010-04-20 10:47:33 -0400437 * };
438 *
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400439 * static struct ftrace_event_call __used
440 * __attribute__((__aligned__(4)))
441 * __attribute__((section("_ftrace_events"))) event_<call> = {
442 * .name = "<call>",
Steven Rostedt8f082012010-04-20 10:47:33 -0400443 * .class = event_class_<template>,
Steven Rostedt2e33af02010-04-22 10:35:55 -0400444 * .event = &ftrace_event_type_<call>,
Li Zefan50354a82010-03-24 10:58:24 +0800445 * .print_fmt = print_fmt_<call>,
Steven Rostedt8f082012010-04-20 10:47:33 -0400446 * };
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400447 *
448 */
449
Li Zefan07b139c2009-12-21 14:27:35 +0800450#ifdef CONFIG_PERF_EVENTS
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400451
Steven Rostedt22392912010-04-21 12:27:06 -0400452#define _TRACE_PERF_PROTO(call, proto) \
453 static notrace void \
454 perf_trace_##call(void *__data, proto);
455
Frederic Weisbecker97d5a222010-03-05 05:35:37 +0100456#define _TRACE_PERF_INIT(call) \
Steven Rostedt22392912010-04-21 12:27:06 -0400457 .perf_probe = perf_trace_##call,
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400458
459#else
Steven Rostedt22392912010-04-21 12:27:06 -0400460#define _TRACE_PERF_PROTO(call, proto)
Frederic Weisbecker97d5a222010-03-05 05:35:37 +0100461#define _TRACE_PERF_INIT(call)
Li Zefan07b139c2009-12-21 14:27:35 +0800462#endif /* CONFIG_PERF_EVENTS */
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400463
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400464#undef __entry
465#define __entry entry
466
Frederic Weisbecker9cbf1172009-04-19 04:51:29 +0200467#undef __field
468#define __field(type, item)
469
470#undef __array
471#define __array(type, item, len)
472
Li Zefan7fcb7c42009-06-01 15:35:46 +0800473#undef __dynamic_array
474#define __dynamic_array(type, item, len) \
475 __entry->__data_loc_##item = __data_offsets.item;
476
Frederic Weisbecker9cbf1172009-04-19 04:51:29 +0200477#undef __string
Li Zefan7fcb7c42009-06-01 15:35:46 +0800478#define __string(item, src) __dynamic_array(char, item, -1) \
Frederic Weisbecker9cbf1172009-04-19 04:51:29 +0200479
480#undef __assign_str
481#define __assign_str(dst, src) \
Frederic Weisbecker9cbf1172009-04-19 04:51:29 +0200482 strcpy(__get_str(dst), src);
483
Lai Jiangshan0fa0eda2009-12-15 15:39:57 +0800484#undef TP_fast_assign
485#define TP_fast_assign(args...) args
486
487#undef TP_perf_assign
488#define TP_perf_assign(args...)
489
Ingo Molnar091ad362009-11-26 09:04:55 +0100490#undef DECLARE_EVENT_CLASS
491#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400492 \
Steven Rostedt83f0d532010-02-16 10:38:47 -0500493static notrace void \
Steven Rostedt22392912010-04-21 12:27:06 -0400494ftrace_raw_event_##call(void *__data, proto) \
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400495{ \
Steven Rostedt22392912010-04-21 12:27:06 -0400496 struct ftrace_event_call *event_call = __data; \
Li Zefan7fcb7c42009-06-01 15:35:46 +0800497 struct ftrace_data_offsets_##call __maybe_unused __data_offsets;\
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400498 struct ring_buffer_event *event; \
499 struct ftrace_raw_##call *entry; \
Steven Rostedte77405a2009-09-02 14:17:06 -0400500 struct ring_buffer *buffer; \
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400501 unsigned long irq_flags; \
Li Zefan7fcb7c42009-06-01 15:35:46 +0800502 int __data_size; \
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400503 int pc; \
504 \
505 local_save_flags(irq_flags); \
506 pc = preempt_count(); \
507 \
Li Zefan7fcb7c42009-06-01 15:35:46 +0800508 __data_size = ftrace_get_offsets_##call(&__data_offsets, args); \
Frederic Weisbecker9cbf1172009-04-19 04:51:29 +0200509 \
Steven Rostedte77405a2009-09-02 14:17:06 -0400510 event = trace_current_buffer_lock_reserve(&buffer, \
Steven Rostedt32c0eda2010-04-23 10:38:03 -0400511 event_call->event.type, \
Li Zefan7fcb7c42009-06-01 15:35:46 +0800512 sizeof(*entry) + __data_size, \
Frederic Weisbecker9cbf1172009-04-19 04:51:29 +0200513 irq_flags, pc); \
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400514 if (!event) \
515 return; \
516 entry = ring_buffer_event_data(event); \
517 \
Li Zefan7fcb7c42009-06-01 15:35:46 +0800518 tstruct \
519 \
Li Zefana9c1c3a2009-06-01 15:35:13 +0800520 { assign; } \
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400521 \
Steven Rostedte77405a2009-09-02 14:17:06 -0400522 if (!filter_current_check_discard(buffer, event_call, entry, event)) \
523 trace_nowake_buffer_unlock_commit(buffer, \
524 event, irq_flags, pc); \
Steven Rostedtff038f52009-11-18 20:27:27 -0500525}
Steven Rostedt22392912010-04-21 12:27:06 -0400526/*
527 * The ftrace_test_probe is compiled out, it is only here as a build time check
528 * to make sure that if the tracepoint handling changes, the ftrace probe will
529 * fail to compile unless it too is updated.
530 */
Steven Rostedtff038f52009-11-18 20:27:27 -0500531
532#undef DEFINE_EVENT
533#define DEFINE_EVENT(template, call, proto, args) \
Steven Rostedt22392912010-04-21 12:27:06 -0400534static inline void ftrace_test_probe_##call(void) \
Steven Rostedtff038f52009-11-18 20:27:27 -0500535{ \
Steven Rostedt22392912010-04-21 12:27:06 -0400536 check_trace_callback_type_##call(ftrace_raw_event_##template); \
537}
Steven Rostedte5bc9722009-11-18 20:36:26 -0500538
539#undef DEFINE_EVENT_PRINT
Steven Rostedt80decc72010-04-23 10:00:22 -0400540#define DEFINE_EVENT_PRINT(template, name, proto, args, print)
Steven Rostedte5bc9722009-11-18 20:36:26 -0500541
542#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
543
Lai Jiangshan509e7602009-12-15 15:39:42 +0800544#undef __entry
545#define __entry REC
546
547#undef __print_flags
548#undef __print_symbolic
549#undef __get_dynamic_array
550#undef __get_str
551
552#undef TP_printk
553#define TP_printk(fmt, args...) "\"" fmt "\", " __stringify(args)
554
Ingo Molnar091ad362009-11-26 09:04:55 +0100555#undef DECLARE_EVENT_CLASS
Lai Jiangshan509e7602009-12-15 15:39:42 +0800556#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \
Steven Rostedt22392912010-04-21 12:27:06 -0400557_TRACE_PERF_PROTO(call, PARAMS(proto)); \
Steven Rostedt8f082012010-04-20 10:47:33 -0400558static const char print_fmt_##call[] = print; \
559static struct ftrace_event_class __used event_class_##call = { \
Steven Rostedt22392912010-04-21 12:27:06 -0400560 .system = __stringify(TRACE_SYSTEM), \
Steven Rostedt2e33af02010-04-22 10:35:55 -0400561 .define_fields = ftrace_define_fields_##call, \
562 .fields = LIST_HEAD_INIT(event_class_##call.fields),\
Steven Rostedt0405ab82010-04-22 11:46:44 -0400563 .raw_init = trace_event_raw_init, \
Steven Rostedt22392912010-04-21 12:27:06 -0400564 .probe = ftrace_raw_event_##call, \
Steven Rostedta1d0ce82010-06-08 11:22:06 -0400565 .reg = ftrace_event_reg, \
Steven Rostedt22392912010-04-21 12:27:06 -0400566 _TRACE_PERF_INIT(call) \
Steven Rostedt8f082012010-04-20 10:47:33 -0400567};
Steven Rostedte5bc9722009-11-18 20:36:26 -0500568
569#undef DEFINE_EVENT
570#define DEFINE_EVENT(template, call, proto, args) \
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400571 \
572static struct ftrace_event_call __used \
573__attribute__((__aligned__(4))) \
574__attribute__((section("_ftrace_events"))) event_##call = { \
575 .name = #call, \
Steven Rostedt8f082012010-04-20 10:47:33 -0400576 .class = &event_class_##template, \
Steven Rostedt80decc72010-04-23 10:00:22 -0400577 .event.funcs = &ftrace_event_type_funcs_##template, \
Lai Jiangshan509e7602009-12-15 15:39:42 +0800578 .print_fmt = print_fmt_##template, \
Steven Rostedt8f082012010-04-20 10:47:33 -0400579};
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400580
Steven Rostedte5bc9722009-11-18 20:36:26 -0500581#undef DEFINE_EVENT_PRINT
582#define DEFINE_EVENT_PRINT(template, call, proto, args, print) \
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400583 \
Lai Jiangshan509e7602009-12-15 15:39:42 +0800584static const char print_fmt_##call[] = print; \
585 \
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400586static struct ftrace_event_call __used \
587__attribute__((__aligned__(4))) \
588__attribute__((section("_ftrace_events"))) event_##call = { \
589 .name = #call, \
Steven Rostedt8f082012010-04-20 10:47:33 -0400590 .class = &event_class_##template, \
Steven Rostedt80decc72010-04-23 10:00:22 -0400591 .event.funcs = &ftrace_event_type_funcs_##call, \
Lai Jiangshan509e7602009-12-15 15:39:42 +0800592 .print_fmt = print_fmt_##call, \
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400593}
594
595#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
596
Frederic Weisbeckerf413cdb2009-08-07 01:25:54 +0200597/*
Frederic Weisbecker97d5a222010-03-05 05:35:37 +0100598 * Define the insertion callback to perf events
Frederic Weisbeckerf413cdb2009-08-07 01:25:54 +0200599 *
600 * The job is very similar to ftrace_raw_event_<call> except that we don't
601 * insert in the ring buffer but in a perf counter.
602 *
Frederic Weisbecker97d5a222010-03-05 05:35:37 +0100603 * static void ftrace_perf_<call>(proto)
Frederic Weisbeckerf413cdb2009-08-07 01:25:54 +0200604 * {
605 * struct ftrace_data_offsets_<call> __maybe_unused __data_offsets;
606 * struct ftrace_event_call *event_call = &event_<call>;
Ingo Molnarcdd6c482009-09-21 12:02:48 +0200607 * extern void perf_tp_event(int, u64, u64, void *, int);
Frederic Weisbeckerf413cdb2009-08-07 01:25:54 +0200608 * struct ftrace_raw_##call *entry;
Frederic Weisbecker444a2a32009-11-06 04:13:05 +0100609 * struct perf_trace_buf *trace_buf;
Frederic Weisbeckerf413cdb2009-08-07 01:25:54 +0200610 * u64 __addr = 0, __count = 1;
611 * unsigned long irq_flags;
Frederic Weisbecker20ab44252009-09-18 06:10:28 +0200612 * struct trace_entry *ent;
Frederic Weisbeckerf413cdb2009-08-07 01:25:54 +0200613 * int __entry_size;
614 * int __data_size;
Frederic Weisbecker20ab44252009-09-18 06:10:28 +0200615 * int __cpu
Frederic Weisbeckerf413cdb2009-08-07 01:25:54 +0200616 * int pc;
617 *
Frederic Weisbeckerf413cdb2009-08-07 01:25:54 +0200618 * pc = preempt_count();
619 *
620 * __data_size = ftrace_get_offsets_<call>(&__data_offsets, args);
Frederic Weisbecker304703a2009-08-10 16:11:32 +0200621 *
622 * // Below we want to get the aligned size by taking into account
623 * // the u32 field that will later store the buffer size
624 * __entry_size = ALIGN(__data_size + sizeof(*entry) + sizeof(u32),
625 * sizeof(u64));
626 * __entry_size -= sizeof(u32);
Frederic Weisbeckerf413cdb2009-08-07 01:25:54 +0200627 *
Frederic Weisbecker20ab44252009-09-18 06:10:28 +0200628 * // Protect the non nmi buffer
629 * // This also protects the rcu read side
630 * local_irq_save(irq_flags);
631 * __cpu = smp_processor_id();
Frederic Weisbeckerf413cdb2009-08-07 01:25:54 +0200632 *
Frederic Weisbecker20ab44252009-09-18 06:10:28 +0200633 * if (in_nmi())
Paul E. McKenney8d53dd52010-03-03 17:50:18 -0800634 * trace_buf = rcu_dereference_sched(perf_trace_buf_nmi);
Frederic Weisbecker20ab44252009-09-18 06:10:28 +0200635 * else
Paul E. McKenney8d53dd52010-03-03 17:50:18 -0800636 * trace_buf = rcu_dereference_sched(perf_trace_buf);
Frederic Weisbecker1853db02009-08-10 16:38:36 +0200637 *
Frederic Weisbecker444a2a32009-11-06 04:13:05 +0100638 * if (!trace_buf)
Frederic Weisbecker20ab44252009-09-18 06:10:28 +0200639 * goto end;
Frederic Weisbeckerf413cdb2009-08-07 01:25:54 +0200640 *
Frederic Weisbecker444a2a32009-11-06 04:13:05 +0100641 * trace_buf = per_cpu_ptr(trace_buf, __cpu);
642 *
643 * // Avoid recursion from perf that could mess up the buffer
644 * if (trace_buf->recursion++)
645 * goto end_recursion;
646 *
647 * raw_data = trace_buf->buf;
648 *
649 * // Make recursion update visible before entering perf_tp_event
650 * // so that we protect from perf recursions.
651 *
652 * barrier();
Frederic Weisbeckerf413cdb2009-08-07 01:25:54 +0200653 *
Frederic Weisbecker20ab44252009-09-18 06:10:28 +0200654 * //zero dead bytes from alignment to avoid stack leak to userspace:
655 * *(u64 *)(&raw_data[__entry_size - sizeof(u64)]) = 0ULL;
656 * entry = (struct ftrace_raw_<call> *)raw_data;
657 * ent = &entry->ent;
658 * tracing_generic_entry_update(ent, irq_flags, pc);
659 * ent->type = event_call->id;
Frederic Weisbeckerf413cdb2009-08-07 01:25:54 +0200660 *
Frederic Weisbecker20ab44252009-09-18 06:10:28 +0200661 * <tstruct> <- do some jobs with dynamic arrays
662 *
663 * <assign> <- affect our values
664 *
Linus Torvalds43c12662009-09-21 09:15:07 -0700665 * perf_tp_event(event_call->id, __addr, __count, entry,
Frederic Weisbecker20ab44252009-09-18 06:10:28 +0200666 * __entry_size); <- submit them to perf counter
Frederic Weisbeckerf413cdb2009-08-07 01:25:54 +0200667 *
668 * }
669 */
670
Li Zefan07b139c2009-12-21 14:27:35 +0800671#ifdef CONFIG_PERF_EVENTS
Frederic Weisbeckerf413cdb2009-08-07 01:25:54 +0200672
Lai Jiangshan509e7602009-12-15 15:39:42 +0800673#undef __entry
674#define __entry entry
675
676#undef __get_dynamic_array
677#define __get_dynamic_array(field) \
678 ((void *)__entry + (__entry->__data_loc_##field & 0xffff))
679
680#undef __get_str
681#define __get_str(field) (char *)__get_dynamic_array(field)
682
Frederic Weisbeckerf413cdb2009-08-07 01:25:54 +0200683#undef __perf_addr
684#define __perf_addr(a) __addr = (a)
685
686#undef __perf_count
687#define __perf_count(c) __count = (c)
688
Ingo Molnar091ad362009-11-26 09:04:55 +0100689#undef DECLARE_EVENT_CLASS
690#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \
Steven Rostedt83f0d532010-02-16 10:38:47 -0500691static notrace void \
Steven Rostedt22392912010-04-21 12:27:06 -0400692perf_trace_##call(void *__data, proto) \
Frederic Weisbeckerf413cdb2009-08-07 01:25:54 +0200693{ \
Steven Rostedt22392912010-04-21 12:27:06 -0400694 struct ftrace_event_call *event_call = __data; \
Frederic Weisbeckerf413cdb2009-08-07 01:25:54 +0200695 struct ftrace_data_offsets_##call __maybe_unused __data_offsets;\
Frederic Weisbeckerf413cdb2009-08-07 01:25:54 +0200696 struct ftrace_raw_##call *entry; \
Steven Rostedtff5f1492010-05-21 11:49:57 -0400697 struct pt_regs __regs; \
Frederic Weisbeckerf413cdb2009-08-07 01:25:54 +0200698 u64 __addr = 0, __count = 1; \
Peter Zijlstra1c024eca2010-05-19 14:02:22 +0200699 struct hlist_head *head; \
Frederic Weisbeckerf413cdb2009-08-07 01:25:54 +0200700 int __entry_size; \
701 int __data_size; \
Peter Zijlstra4ed7c922009-11-23 11:37:29 +0100702 int rctx; \
Frederic Weisbeckerf413cdb2009-08-07 01:25:54 +0200703 \
Frederic Weisbeckerb0f82b82010-05-20 07:47:21 +0200704 perf_fetch_caller_regs(&__regs); \
Steven Rostedtf0218b32010-05-17 22:26:53 -0400705 \
Frederic Weisbeckerf413cdb2009-08-07 01:25:54 +0200706 __data_size = ftrace_get_offsets_##call(&__data_offsets, args); \
Peter Zijlstraa0445602009-08-10 11:16:52 +0200707 __entry_size = ALIGN(__data_size + sizeof(*entry) + sizeof(u32),\
708 sizeof(u64)); \
Frederic Weisbecker304703a2009-08-10 16:11:32 +0200709 __entry_size -= sizeof(u32); \
Frederic Weisbeckerf413cdb2009-08-07 01:25:54 +0200710 \
Frederic Weisbecker97d5a222010-03-05 05:35:37 +0100711 if (WARN_ONCE(__entry_size > PERF_MAX_TRACE_SIZE, \
Frederic Weisbecker20ab44252009-09-18 06:10:28 +0200712 "profile buffer not large enough")) \
713 return; \
Peter Zijlstrab7e2ece2010-05-19 10:52:27 +0200714 \
Frederic Weisbecker97d5a222010-03-05 05:35:37 +0100715 entry = (struct ftrace_raw_##call *)perf_trace_buf_prepare( \
Steven Rostedtff5f1492010-05-21 11:49:57 -0400716 __entry_size, event_call->event.type, &__regs, &rctx); \
Xiao Guangrong430ad5a2010-01-28 09:32:29 +0800717 if (!entry) \
718 return; \
Peter Zijlstrab7e2ece2010-05-19 10:52:27 +0200719 \
Frederic Weisbecker20ab44252009-09-18 06:10:28 +0200720 tstruct \
721 \
722 { assign; } \
723 \
Peter Zijlstra3771f072010-05-21 12:31:09 +0200724 head = this_cpu_ptr(event_call->perf_events); \
Frederic Weisbecker97d5a222010-03-05 05:35:37 +0100725 perf_trace_buf_submit(entry, __entry_size, rctx, __addr, \
Steven Rostedtff5f1492010-05-21 11:49:57 -0400726 __count, &__regs, head); \
Frederic Weisbeckerf413cdb2009-08-07 01:25:54 +0200727}
728
Steven Rostedt22392912010-04-21 12:27:06 -0400729/*
730 * This part is compiled out, it is only here as a build time check
731 * to make sure that if the tracepoint handling changes, the
732 * perf probe will fail to compile unless it too is updated.
733 */
Steven Rostedtff038f52009-11-18 20:27:27 -0500734#undef DEFINE_EVENT
Frederic Weisbecker6cc8a7c2010-03-19 01:23:53 +0100735#define DEFINE_EVENT(template, call, proto, args) \
Steven Rostedt22392912010-04-21 12:27:06 -0400736static inline void perf_test_probe_##call(void) \
Frederic Weisbecker6cc8a7c2010-03-19 01:23:53 +0100737{ \
Steven Rostedt22392912010-04-21 12:27:06 -0400738 check_trace_callback_type_##call(perf_trace_##template); \
Steven Rostedtff038f52009-11-18 20:27:27 -0500739}
740
Steven Rostedt22392912010-04-21 12:27:06 -0400741
Steven Rostedte5bc9722009-11-18 20:36:26 -0500742#undef DEFINE_EVENT_PRINT
743#define DEFINE_EVENT_PRINT(template, name, proto, args, print) \
744 DEFINE_EVENT(template, name, PARAMS(proto), PARAMS(args))
745
Frederic Weisbeckerf413cdb2009-08-07 01:25:54 +0200746#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
Li Zefan07b139c2009-12-21 14:27:35 +0800747#endif /* CONFIG_PERF_EVENTS */
Frederic Weisbeckerf413cdb2009-08-07 01:25:54 +0200748
Steven Rostedtf42c85e2009-04-13 12:25:37 -0400749#undef _TRACE_PROFILE_INIT
750