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97e1c18e MD |
1 | #ifndef _LINUX_TRACEPOINT_H |
2 | #define _LINUX_TRACEPOINT_H | |
3 | ||
4 | /* | |
5 | * Kernel Tracepoint API. | |
6 | * | |
8cd09a59 | 7 | * See Documentation/trace/tracepoints.txt. |
97e1c18e | 8 | * |
de7b2973 | 9 | * Copyright (C) 2008-2014 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
97e1c18e MD |
10 | * |
11 | * Heavily inspired from the Linux Kernel Markers. | |
12 | * | |
13 | * This file is released under the GPLv2. | |
14 | * See the file COPYING for more details. | |
15 | */ | |
16 | ||
b70e4f05 | 17 | #include <linux/errno.h> |
97e1c18e MD |
18 | #include <linux/types.h> |
19 | #include <linux/rcupdate.h> | |
bd2a634d | 20 | #include <linux/tracepoint-defs.h> |
97e1c18e MD |
21 | |
22 | struct module; | |
23 | struct tracepoint; | |
de7b2973 | 24 | struct notifier_block; |
97e1c18e | 25 | |
0c564a53 SRRH |
26 | struct trace_enum_map { |
27 | const char *system; | |
28 | const char *enum_string; | |
29 | unsigned long enum_value; | |
30 | }; | |
31 | ||
7904b5c4 SRRH |
32 | #define TRACEPOINT_DEFAULT_PRIO 10 |
33 | ||
38516ab5 | 34 | extern int |
de7b2973 MD |
35 | tracepoint_probe_register(struct tracepoint *tp, void *probe, void *data); |
36 | extern int | |
7904b5c4 SRRH |
37 | tracepoint_probe_register_prio(struct tracepoint *tp, void *probe, void *data, |
38 | int prio); | |
39 | extern int | |
de7b2973 MD |
40 | tracepoint_probe_unregister(struct tracepoint *tp, void *probe, void *data); |
41 | extern void | |
42 | for_each_kernel_tracepoint(void (*fct)(struct tracepoint *tp, void *priv), | |
43 | void *priv); | |
2e26ca71 | 44 | |
b75ef8b4 MD |
45 | #ifdef CONFIG_MODULES |
46 | struct tp_module { | |
47 | struct list_head list; | |
eb7d035c | 48 | struct module *mod; |
b75ef8b4 | 49 | }; |
de7b2973 | 50 | |
45ab2813 | 51 | bool trace_module_has_bad_taint(struct module *mod); |
de7b2973 MD |
52 | extern int register_tracepoint_module_notifier(struct notifier_block *nb); |
53 | extern int unregister_tracepoint_module_notifier(struct notifier_block *nb); | |
45ab2813 SRRH |
54 | #else |
55 | static inline bool trace_module_has_bad_taint(struct module *mod) | |
56 | { | |
57 | return false; | |
58 | } | |
de7b2973 MD |
59 | static inline |
60 | int register_tracepoint_module_notifier(struct notifier_block *nb) | |
61 | { | |
62 | return 0; | |
63 | } | |
64 | static inline | |
65 | int unregister_tracepoint_module_notifier(struct notifier_block *nb) | |
66 | { | |
67 | return 0; | |
68 | } | |
b75ef8b4 MD |
69 | #endif /* CONFIG_MODULES */ |
70 | ||
2e26ca71 SR |
71 | /* |
72 | * tracepoint_synchronize_unregister must be called between the last tracepoint | |
73 | * probe unregistration and the end of module exit to make sure there is no | |
74 | * caller executing a probe when it is freed. | |
75 | */ | |
76 | static inline void tracepoint_synchronize_unregister(void) | |
77 | { | |
78 | synchronize_sched(); | |
79 | } | |
80 | ||
b725dfea MD |
81 | #ifdef CONFIG_HAVE_SYSCALL_TRACEPOINTS |
82 | extern void syscall_regfunc(void); | |
83 | extern void syscall_unregfunc(void); | |
84 | #endif /* CONFIG_HAVE_SYSCALL_TRACEPOINTS */ | |
85 | ||
2e26ca71 SR |
86 | #define PARAMS(args...) args |
87 | ||
0c564a53 SRRH |
88 | #define TRACE_DEFINE_ENUM(x) |
89 | ||
2e26ca71 SR |
90 | #endif /* _LINUX_TRACEPOINT_H */ |
91 | ||
92 | /* | |
93 | * Note: we keep the TRACE_EVENT and DECLARE_TRACE outside the include | |
94 | * file ifdef protection. | |
95 | * This is due to the way trace events work. If a file includes two | |
96 | * trace event headers under one "CREATE_TRACE_POINTS" the first include | |
97 | * will override the TRACE_EVENT and break the second include. | |
98 | */ | |
99 | ||
ea20d929 SR |
100 | #ifndef DECLARE_TRACE |
101 | ||
2939b046 | 102 | #define TP_PROTO(args...) args |
8cd09a59 | 103 | #define TP_ARGS(args...) args |
287050d3 | 104 | #define TP_CONDITION(args...) args |
97e1c18e | 105 | |
c63b7682 TS |
106 | /* |
107 | * Individual subsystem my have a separate configuration to | |
108 | * enable their tracepoints. By default, this file will create | |
109 | * the tracepoints if CONFIG_TRACEPOINT is defined. If a subsystem | |
110 | * wants to be able to disable its tracepoints from being created | |
111 | * it can define NOTRACE before including the tracepoint headers. | |
112 | */ | |
113 | #if defined(CONFIG_TRACEPOINTS) && !defined(NOTRACE) | |
114 | #define TRACEPOINTS_ENABLED | |
115 | #endif | |
116 | ||
117 | #ifdef TRACEPOINTS_ENABLED | |
97e1c18e MD |
118 | |
119 | /* | |
120 | * it_func[0] is never NULL because there is at least one element in the array | |
121 | * when the array itself is non NULL. | |
38516ab5 SR |
122 | * |
123 | * Note, the proto and args passed in includes "__data" as the first parameter. | |
124 | * The reason for this is to handle the "void" prototype. If a tracepoint | |
125 | * has a "void" prototype, then it is invalid to declare a function | |
126 | * as "(void *, void)". The DECLARE_TRACE_NOARGS() will pass in just | |
127 | * "void *data", where as the DECLARE_TRACE() will pass in "void *data, proto". | |
97e1c18e | 128 | */ |
2fbb90db | 129 | #define __DO_TRACE(tp, proto, args, cond, prercu, postrcu) \ |
97e1c18e | 130 | do { \ |
38516ab5 SR |
131 | struct tracepoint_func *it_func_ptr; \ |
132 | void *it_func; \ | |
133 | void *__data; \ | |
97e1c18e | 134 | \ |
287050d3 SR |
135 | if (!(cond)) \ |
136 | return; \ | |
2fbb90db | 137 | prercu; \ |
da7b3eab | 138 | rcu_read_lock_sched_notrace(); \ |
38516ab5 SR |
139 | it_func_ptr = rcu_dereference_sched((tp)->funcs); \ |
140 | if (it_func_ptr) { \ | |
97e1c18e | 141 | do { \ |
38516ab5 SR |
142 | it_func = (it_func_ptr)->func; \ |
143 | __data = (it_func_ptr)->data; \ | |
144 | ((void(*)(proto))(it_func))(args); \ | |
145 | } while ((++it_func_ptr)->func); \ | |
97e1c18e | 146 | } \ |
da7b3eab | 147 | rcu_read_unlock_sched_notrace(); \ |
2fbb90db | 148 | postrcu; \ |
97e1c18e MD |
149 | } while (0) |
150 | ||
7ece55a4 JT |
151 | #ifndef MODULE |
152 | #define __DECLARE_TRACE_RCU(name, proto, args, cond, data_proto, data_args) \ | |
153 | static inline void trace_##name##_rcuidle(proto) \ | |
154 | { \ | |
155 | if (static_key_false(&__tracepoint_##name.key)) \ | |
156 | __DO_TRACE(&__tracepoint_##name, \ | |
157 | TP_PROTO(data_proto), \ | |
158 | TP_ARGS(data_args), \ | |
159 | TP_CONDITION(cond), \ | |
7c9906ca PM |
160 | rcu_irq_enter_irqson(), \ |
161 | rcu_irq_exit_irqson()); \ | |
7ece55a4 JT |
162 | } |
163 | #else | |
164 | #define __DECLARE_TRACE_RCU(name, proto, args, cond, data_proto, data_args) | |
165 | #endif | |
166 | ||
97e1c18e MD |
167 | /* |
168 | * Make sure the alignment of the structure in the __tracepoints section will | |
169 | * not add unwanted padding between the beginning of the section and the | |
170 | * structure. Force alignment to the same alignment as the section start. | |
3a630178 DH |
171 | * |
172 | * When lockdep is enabled, we make sure to always do the RCU portions of | |
a15920be MD |
173 | * the tracepoint code, regardless of whether tracing is on. However, |
174 | * don't check if the condition is false, due to interaction with idle | |
175 | * instrumentation. This lets us find RCU issues triggered with tracepoints | |
176 | * even when this tracepoint is off. This code has no purpose other than | |
177 | * poking RCU a bit. | |
97e1c18e | 178 | */ |
2fbb90db | 179 | #define __DECLARE_TRACE(name, proto, args, cond, data_proto, data_args) \ |
7e066fb8 | 180 | extern struct tracepoint __tracepoint_##name; \ |
97e1c18e MD |
181 | static inline void trace_##name(proto) \ |
182 | { \ | |
c5905afb | 183 | if (static_key_false(&__tracepoint_##name.key)) \ |
97e1c18e | 184 | __DO_TRACE(&__tracepoint_##name, \ |
38516ab5 | 185 | TP_PROTO(data_proto), \ |
287050d3 | 186 | TP_ARGS(data_args), \ |
2fbb90db | 187 | TP_CONDITION(cond),,); \ |
a05d59a5 | 188 | if (IS_ENABLED(CONFIG_LOCKDEP) && (cond)) { \ |
3a630178 DH |
189 | rcu_read_lock_sched_notrace(); \ |
190 | rcu_dereference_sched(__tracepoint_##name.funcs);\ | |
191 | rcu_read_unlock_sched_notrace(); \ | |
192 | } \ | |
2fbb90db | 193 | } \ |
7ece55a4 JT |
194 | __DECLARE_TRACE_RCU(name, PARAMS(proto), PARAMS(args), \ |
195 | PARAMS(cond), PARAMS(data_proto), PARAMS(data_args)) \ | |
38516ab5 SR |
196 | static inline int \ |
197 | register_trace_##name(void (*probe)(data_proto), void *data) \ | |
97e1c18e | 198 | { \ |
de7b2973 MD |
199 | return tracepoint_probe_register(&__tracepoint_##name, \ |
200 | (void *)probe, data); \ | |
97e1c18e | 201 | } \ |
38516ab5 | 202 | static inline int \ |
7904b5c4 SRRH |
203 | register_trace_prio_##name(void (*probe)(data_proto), void *data,\ |
204 | int prio) \ | |
205 | { \ | |
206 | return tracepoint_probe_register_prio(&__tracepoint_##name, \ | |
207 | (void *)probe, data, prio); \ | |
208 | } \ | |
209 | static inline int \ | |
38516ab5 | 210 | unregister_trace_##name(void (*probe)(data_proto), void *data) \ |
97e1c18e | 211 | { \ |
de7b2973 MD |
212 | return tracepoint_probe_unregister(&__tracepoint_##name,\ |
213 | (void *)probe, data); \ | |
53da59aa | 214 | } \ |
38516ab5 SR |
215 | static inline void \ |
216 | check_trace_callback_type_##name(void (*cb)(data_proto)) \ | |
53da59aa | 217 | { \ |
7c65bbc7 SRRH |
218 | } \ |
219 | static inline bool \ | |
220 | trace_##name##_enabled(void) \ | |
221 | { \ | |
222 | return static_key_false(&__tracepoint_##name.key); \ | |
97e1c18e MD |
223 | } |
224 | ||
65498646 MD |
225 | /* |
226 | * We have no guarantee that gcc and the linker won't up-align the tracepoint | |
227 | * structures, so we create an array of pointers that will be used for iteration | |
228 | * on the tracepoints. | |
229 | */ | |
d430d3d7 JB |
230 | #define DEFINE_TRACE_FN(name, reg, unreg) \ |
231 | static const char __tpstrtab_##name[] \ | |
232 | __attribute__((section("__tracepoints_strings"))) = #name; \ | |
233 | struct tracepoint __tracepoint_##name \ | |
234 | __attribute__((section("__tracepoints"))) = \ | |
c5905afb | 235 | { __tpstrtab_##name, STATIC_KEY_INIT_FALSE, reg, unreg, NULL };\ |
d430d3d7 JB |
236 | static struct tracepoint * const __tracepoint_ptr_##name __used \ |
237 | __attribute__((section("__tracepoints_ptrs"))) = \ | |
65498646 | 238 | &__tracepoint_##name; |
97419875 JS |
239 | |
240 | #define DEFINE_TRACE(name) \ | |
241 | DEFINE_TRACE_FN(name, NULL, NULL); | |
7e066fb8 MD |
242 | |
243 | #define EXPORT_TRACEPOINT_SYMBOL_GPL(name) \ | |
244 | EXPORT_SYMBOL_GPL(__tracepoint_##name) | |
245 | #define EXPORT_TRACEPOINT_SYMBOL(name) \ | |
246 | EXPORT_SYMBOL(__tracepoint_##name) | |
247 | ||
c63b7682 | 248 | #else /* !TRACEPOINTS_ENABLED */ |
2fbb90db | 249 | #define __DECLARE_TRACE(name, proto, args, cond, data_proto, data_args) \ |
97e1c18e MD |
250 | static inline void trace_##name(proto) \ |
251 | { } \ | |
2fbb90db SR |
252 | static inline void trace_##name##_rcuidle(proto) \ |
253 | { } \ | |
38516ab5 SR |
254 | static inline int \ |
255 | register_trace_##name(void (*probe)(data_proto), \ | |
256 | void *data) \ | |
97e1c18e MD |
257 | { \ |
258 | return -ENOSYS; \ | |
259 | } \ | |
38516ab5 SR |
260 | static inline int \ |
261 | unregister_trace_##name(void (*probe)(data_proto), \ | |
262 | void *data) \ | |
c420970e MD |
263 | { \ |
264 | return -ENOSYS; \ | |
53da59aa | 265 | } \ |
38516ab5 | 266 | static inline void check_trace_callback_type_##name(void (*cb)(data_proto)) \ |
53da59aa | 267 | { \ |
7c65bbc7 SRRH |
268 | } \ |
269 | static inline bool \ | |
270 | trace_##name##_enabled(void) \ | |
271 | { \ | |
272 | return false; \ | |
c420970e | 273 | } |
97e1c18e | 274 | |
97419875 | 275 | #define DEFINE_TRACE_FN(name, reg, unreg) |
7e066fb8 MD |
276 | #define DEFINE_TRACE(name) |
277 | #define EXPORT_TRACEPOINT_SYMBOL_GPL(name) | |
278 | #define EXPORT_TRACEPOINT_SYMBOL(name) | |
279 | ||
c63b7682 | 280 | #endif /* TRACEPOINTS_ENABLED */ |
38516ab5 | 281 | |
3c49b52b SR |
282 | #ifdef CONFIG_TRACING |
283 | /** | |
284 | * tracepoint_string - register constant persistent string to trace system | |
285 | * @str - a constant persistent string that will be referenced in tracepoints | |
286 | * | |
287 | * If constant strings are being used in tracepoints, it is faster and | |
288 | * more efficient to just save the pointer to the string and reference | |
289 | * that with a printf "%s" instead of saving the string in the ring buffer | |
290 | * and wasting space and time. | |
291 | * | |
292 | * The problem with the above approach is that userspace tools that read | |
293 | * the binary output of the trace buffers do not have access to the string. | |
294 | * Instead they just show the address of the string which is not very | |
295 | * useful to users. | |
296 | * | |
297 | * With tracepoint_string(), the string will be registered to the tracing | |
298 | * system and exported to userspace via the debugfs/tracing/printk_formats | |
299 | * file that maps the string address to the string text. This way userspace | |
300 | * tools that read the binary buffers have a way to map the pointers to | |
301 | * the ASCII strings they represent. | |
302 | * | |
303 | * The @str used must be a constant string and persistent as it would not | |
304 | * make sense to show a string that no longer exists. But it is still fine | |
305 | * to be used with modules, because when modules are unloaded, if they | |
306 | * had tracepoints, the ring buffers are cleared too. As long as the string | |
307 | * does not change during the life of the module, it is fine to use | |
308 | * tracepoint_string() within a module. | |
309 | */ | |
310 | #define tracepoint_string(str) \ | |
311 | ({ \ | |
312 | static const char *___tp_str __tracepoint_string = str; \ | |
313 | ___tp_str; \ | |
314 | }) | |
315 | #define __tracepoint_string __attribute__((section("__tracepoint_str"))) | |
316 | #else | |
317 | /* | |
318 | * tracepoint_string() is used to save the string address for userspace | |
319 | * tracing tools. When tracing isn't configured, there's no need to save | |
320 | * anything. | |
321 | */ | |
322 | # define tracepoint_string(str) str | |
323 | # define __tracepoint_string | |
324 | #endif | |
325 | ||
38516ab5 SR |
326 | /* |
327 | * The need for the DECLARE_TRACE_NOARGS() is to handle the prototype | |
328 | * (void). "void" is a special value in a function prototype and can | |
329 | * not be combined with other arguments. Since the DECLARE_TRACE() | |
330 | * macro adds a data element at the beginning of the prototype, | |
331 | * we need a way to differentiate "(void *data, proto)" from | |
332 | * "(void *data, void)". The second prototype is invalid. | |
333 | * | |
334 | * DECLARE_TRACE_NOARGS() passes "void" as the tracepoint prototype | |
335 | * and "void *__data" as the callback prototype. | |
336 | * | |
337 | * DECLARE_TRACE() passes "proto" as the tracepoint protoype and | |
338 | * "void *__data, proto" as the callback prototype. | |
339 | */ | |
340 | #define DECLARE_TRACE_NOARGS(name) \ | |
287050d3 | 341 | __DECLARE_TRACE(name, void, , 1, void *__data, __data) |
38516ab5 SR |
342 | |
343 | #define DECLARE_TRACE(name, proto, args) \ | |
287050d3 | 344 | __DECLARE_TRACE(name, PARAMS(proto), PARAMS(args), 1, \ |
38516ab5 SR |
345 | PARAMS(void *__data, proto), \ |
346 | PARAMS(__data, args)) | |
347 | ||
287050d3 SR |
348 | #define DECLARE_TRACE_CONDITION(name, proto, args, cond) \ |
349 | __DECLARE_TRACE(name, PARAMS(proto), PARAMS(args), PARAMS(cond), \ | |
350 | PARAMS(void *__data, proto), \ | |
351 | PARAMS(__data, args)) | |
352 | ||
1ed0c597 FW |
353 | #define TRACE_EVENT_FLAGS(event, flag) |
354 | ||
d5b5f391 PZ |
355 | #define TRACE_EVENT_PERF_PERM(event, expr...) |
356 | ||
ea20d929 | 357 | #endif /* DECLARE_TRACE */ |
97e1c18e | 358 | |
ea20d929 | 359 | #ifndef TRACE_EVENT |
823f9124 SR |
360 | /* |
361 | * For use with the TRACE_EVENT macro: | |
362 | * | |
363 | * We define a tracepoint, its arguments, its printk format | |
2621bca8 | 364 | * and its 'fast binary record' layout. |
823f9124 SR |
365 | * |
366 | * Firstly, name your tracepoint via TRACE_EVENT(name : the | |
367 | * 'subsystem_event' notation is fine. | |
368 | * | |
369 | * Think about this whole construct as the | |
370 | * 'trace_sched_switch() function' from now on. | |
371 | * | |
372 | * | |
373 | * TRACE_EVENT(sched_switch, | |
374 | * | |
375 | * * | |
376 | * * A function has a regular function arguments | |
377 | * * prototype, declare it via TP_PROTO(): | |
378 | * * | |
379 | * | |
ef18012b SR |
380 | * TP_PROTO(struct rq *rq, struct task_struct *prev, |
381 | * struct task_struct *next), | |
823f9124 SR |
382 | * |
383 | * * | |
384 | * * Define the call signature of the 'function'. | |
385 | * * (Design sidenote: we use this instead of a | |
386 | * * TP_PROTO1/TP_PROTO2/TP_PROTO3 ugliness.) | |
387 | * * | |
388 | * | |
ef18012b | 389 | * TP_ARGS(rq, prev, next), |
823f9124 SR |
390 | * |
391 | * * | |
392 | * * Fast binary tracing: define the trace record via | |
393 | * * TP_STRUCT__entry(). You can think about it like a | |
394 | * * regular C structure local variable definition. | |
395 | * * | |
396 | * * This is how the trace record is structured and will | |
397 | * * be saved into the ring buffer. These are the fields | |
398 | * * that will be exposed to user-space in | |
156f5a78 | 399 | * * /sys/kernel/debug/tracing/events/<*>/format. |
823f9124 SR |
400 | * * |
401 | * * The declared 'local variable' is called '__entry' | |
402 | * * | |
403 | * * __field(pid_t, prev_prid) is equivalent to a standard declariton: | |
404 | * * | |
405 | * * pid_t prev_pid; | |
406 | * * | |
407 | * * __array(char, prev_comm, TASK_COMM_LEN) is equivalent to: | |
408 | * * | |
409 | * * char prev_comm[TASK_COMM_LEN]; | |
410 | * * | |
411 | * | |
412 | * TP_STRUCT__entry( | |
413 | * __array( char, prev_comm, TASK_COMM_LEN ) | |
414 | * __field( pid_t, prev_pid ) | |
415 | * __field( int, prev_prio ) | |
416 | * __array( char, next_comm, TASK_COMM_LEN ) | |
417 | * __field( pid_t, next_pid ) | |
418 | * __field( int, next_prio ) | |
419 | * ), | |
420 | * | |
421 | * * | |
422 | * * Assign the entry into the trace record, by embedding | |
423 | * * a full C statement block into TP_fast_assign(). You | |
424 | * * can refer to the trace record as '__entry' - | |
425 | * * otherwise you can put arbitrary C code in here. | |
426 | * * | |
427 | * * Note: this C code will execute every time a trace event | |
428 | * * happens, on an active tracepoint. | |
429 | * * | |
430 | * | |
ef18012b SR |
431 | * TP_fast_assign( |
432 | * memcpy(__entry->next_comm, next->comm, TASK_COMM_LEN); | |
433 | * __entry->prev_pid = prev->pid; | |
434 | * __entry->prev_prio = prev->prio; | |
823f9124 SR |
435 | * memcpy(__entry->prev_comm, prev->comm, TASK_COMM_LEN); |
436 | * __entry->next_pid = next->pid; | |
ef18012b | 437 | * __entry->next_prio = next->prio; |
ec6e7c3a | 438 | * ), |
823f9124 SR |
439 | * |
440 | * * | |
441 | * * Formatted output of a trace record via TP_printk(). | |
442 | * * This is how the tracepoint will appear under ftrace | |
443 | * * plugins that make use of this tracepoint. | |
444 | * * | |
445 | * * (raw-binary tracing wont actually perform this step.) | |
446 | * * | |
447 | * | |
448 | * TP_printk("task %s:%d [%d] ==> %s:%d [%d]", | |
449 | * __entry->prev_comm, __entry->prev_pid, __entry->prev_prio, | |
450 | * __entry->next_comm, __entry->next_pid, __entry->next_prio), | |
451 | * | |
452 | * ); | |
453 | * | |
454 | * This macro construct is thus used for the regular printk format | |
455 | * tracing setup, it is used to construct a function pointer based | |
456 | * tracepoint callback (this is used by programmatic plugins and | |
457 | * can also by used by generic instrumentation like SystemTap), and | |
458 | * it is also used to expose a structured trace record in | |
156f5a78 | 459 | * /sys/kernel/debug/tracing/events/. |
97419875 JS |
460 | * |
461 | * A set of (un)registration functions can be passed to the variant | |
462 | * TRACE_EVENT_FN to perform any (un)registration work. | |
823f9124 SR |
463 | */ |
464 | ||
091ad365 | 465 | #define DECLARE_EVENT_CLASS(name, proto, args, tstruct, assign, print) |
ff038f5c SR |
466 | #define DEFINE_EVENT(template, name, proto, args) \ |
467 | DECLARE_TRACE(name, PARAMS(proto), PARAMS(args)) | |
f5abaa1b SR |
468 | #define DEFINE_EVENT_FN(template, name, proto, args, reg, unreg)\ |
469 | DECLARE_TRACE(name, PARAMS(proto), PARAMS(args)) | |
e5bc9721 SR |
470 | #define DEFINE_EVENT_PRINT(template, name, proto, args, print) \ |
471 | DECLARE_TRACE(name, PARAMS(proto), PARAMS(args)) | |
287050d3 SR |
472 | #define DEFINE_EVENT_CONDITION(template, name, proto, \ |
473 | args, cond) \ | |
474 | DECLARE_TRACE_CONDITION(name, PARAMS(proto), \ | |
475 | PARAMS(args), PARAMS(cond)) | |
ff038f5c | 476 | |
30a8fecc | 477 | #define TRACE_EVENT(name, proto, args, struct, assign, print) \ |
da4d0302 | 478 | DECLARE_TRACE(name, PARAMS(proto), PARAMS(args)) |
97419875 JS |
479 | #define TRACE_EVENT_FN(name, proto, args, struct, \ |
480 | assign, print, reg, unreg) \ | |
481 | DECLARE_TRACE(name, PARAMS(proto), PARAMS(args)) | |
2701121b DK |
482 | #define TRACE_EVENT_FN_COND(name, proto, args, cond, struct, \ |
483 | assign, print, reg, unreg) \ | |
484 | DECLARE_TRACE_CONDITION(name, PARAMS(proto), \ | |
485 | PARAMS(args), PARAMS(cond)) | |
287050d3 SR |
486 | #define TRACE_EVENT_CONDITION(name, proto, args, cond, \ |
487 | struct, assign, print) \ | |
488 | DECLARE_TRACE_CONDITION(name, PARAMS(proto), \ | |
489 | PARAMS(args), PARAMS(cond)) | |
7cb2e3ee | 490 | |
1ed0c597 FW |
491 | #define TRACE_EVENT_FLAGS(event, flag) |
492 | ||
d5b5f391 PZ |
493 | #define TRACE_EVENT_PERF_PERM(event, expr...) |
494 | ||
7cb2e3ee | 495 | #endif /* ifdef TRACE_EVENT (see note above) */ |