1 #ifndef _LTTNG_TRACEPOINT_H
2 #define _LTTNG_TRACEPOINT_H
5 * Copyright 2011-2012 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
7 * Permission is hereby granted, free of charge, to any person obtaining a copy
8 * of this software and associated documentation files (the "Software"), to deal
9 * in the Software without restriction, including without limitation the rights
10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11 * copies of the Software, and to permit persons to whom the Software is
12 * furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
20 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
26 #include <lttng/tracepoint-types.h>
27 #include <lttng/tracepoint-rcu.h>
28 #include <urcu/compiler.h>
29 #include <dlfcn.h> /* for dlopen */
30 #include <string.h> /* for memset */
32 #include <lttng/ust-config.h> /* for sdt */
33 #include <lttng/ust-compiler.h>
35 #ifdef LTTNG_UST_HAVE_SDT_INTEGRATION
36 #define SDT_USE_VARIADIC
39 #define STAP_PROBEV(...)
46 #define tracepoint(provider, name, ...) \
48 STAP_PROBEV(provider, name, ## __VA_ARGS__); \
49 if (caa_unlikely(__tracepoint_##provider##___##name.state)) \
50 __tracepoint_cb_##provider##___##name(__VA_ARGS__); \
53 #define TP_ARGS(...) __VA_ARGS__
56 * TP_ARGS takes tuples of type, argument separated by a comma.
57 * It can take up to 10 tuples (which means that less than 10 tuples is
59 * Each tuple is also separated by a comma.
61 #define __TP_COMBINE_TOKENS(_tokena, _tokenb) \
63 #define _TP_COMBINE_TOKENS(_tokena, _tokenb) \
64 __TP_COMBINE_TOKENS(_tokena, _tokenb)
65 #define __TP_COMBINE_TOKENS3(_tokena, _tokenb, _tokenc) \
66 _tokena##_tokenb##_tokenc
67 #define _TP_COMBINE_TOKENS3(_tokena, _tokenb, _tokenc) \
68 __TP_COMBINE_TOKENS3(_tokena, _tokenb, _tokenc)
69 #define __TP_COMBINE_TOKENS4(_tokena, _tokenb, _tokenc, _tokend) \
70 _tokena##_tokenb##_tokenc##_tokend
71 #define _TP_COMBINE_TOKENS4(_tokena, _tokenb, _tokenc, _tokend) \
72 __TP_COMBINE_TOKENS4(_tokena, _tokenb, _tokenc, _tokend)
75 * _TP_EXVAR* extract the var names.
76 * _TP_EXVAR1 and _TP_EXDATA_VAR1 are needed for -std=c99.
80 #define _TP_EXVAR2(a,b) b
81 #define _TP_EXVAR4(a,b,c,d) b,d
82 #define _TP_EXVAR6(a,b,c,d,e,f) b,d,f
83 #define _TP_EXVAR8(a,b,c,d,e,f,g,h) b,d,f,h
84 #define _TP_EXVAR10(a,b,c,d,e,f,g,h,i,j) b,d,f,h,j
85 #define _TP_EXVAR12(a,b,c,d,e,f,g,h,i,j,k,l) b,d,f,h,j,l
86 #define _TP_EXVAR14(a,b,c,d,e,f,g,h,i,j,k,l,m,n) b,d,f,h,j,l,n
87 #define _TP_EXVAR16(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p) b,d,f,h,j,l,n,p
88 #define _TP_EXVAR18(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r) b,d,f,h,j,l,n,p,r
89 #define _TP_EXVAR20(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t) b,d,f,h,j,l,n,p,r,t
91 #define _TP_EXDATA_VAR0() __tp_data
92 #define _TP_EXDATA_VAR1(a) __tp_data
93 #define _TP_EXDATA_VAR2(a,b) __tp_data,b
94 #define _TP_EXDATA_VAR4(a,b,c,d) __tp_data,b,d
95 #define _TP_EXDATA_VAR6(a,b,c,d,e,f) __tp_data,b,d,f
96 #define _TP_EXDATA_VAR8(a,b,c,d,e,f,g,h) __tp_data,b,d,f,h
97 #define _TP_EXDATA_VAR10(a,b,c,d,e,f,g,h,i,j) __tp_data,b,d,f,h,j
98 #define _TP_EXDATA_VAR12(a,b,c,d,e,f,g,h,i,j,k,l) __tp_data,b,d,f,h,j,l
99 #define _TP_EXDATA_VAR14(a,b,c,d,e,f,g,h,i,j,k,l,m,n) __tp_data,b,d,f,h,j,l,n
100 #define _TP_EXDATA_VAR16(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p) __tp_data,b,d,f,h,j,l,n,p
101 #define _TP_EXDATA_VAR18(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r) __tp_data,b,d,f,h,j,l,n,p,r
102 #define _TP_EXDATA_VAR20(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t) __tp_data,b,d,f,h,j,l,n,p,r,t
105 * _TP_EXPROTO* extract tuples of type, var.
106 * _TP_EXPROTO1 and _TP_EXDATA_PROTO1 are needed for -std=c99.
108 #define _TP_EXPROTO0() void
109 #define _TP_EXPROTO1(a) void
110 #define _TP_EXPROTO2(a,b) a b
111 #define _TP_EXPROTO4(a,b,c,d) a b,c d
112 #define _TP_EXPROTO6(a,b,c,d,e,f) a b,c d,e f
113 #define _TP_EXPROTO8(a,b,c,d,e,f,g,h) a b,c d,e f,g h
114 #define _TP_EXPROTO10(a,b,c,d,e,f,g,h,i,j) a b,c d,e f,g h,i j
115 #define _TP_EXPROTO12(a,b,c,d,e,f,g,h,i,j,k,l) a b,c d,e f,g h,i j,k l
116 #define _TP_EXPROTO14(a,b,c,d,e,f,g,h,i,j,k,l,m,n) a b,c d,e f,g h,i j,k l,m n
117 #define _TP_EXPROTO16(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p) a b,c d,e f,g h,i j,k l,m n,o p
118 #define _TP_EXPROTO18(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r) a b,c d,e f,g h,i j,k l,m n,o p,q r
119 #define _TP_EXPROTO20(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t) a b,c d,e f,g h,i j,k l,m n,o p,q r,s t
121 #define _TP_EXDATA_PROTO0() void *__tp_data
122 #define _TP_EXDATA_PROTO1(a) void *__tp_data
123 #define _TP_EXDATA_PROTO2(a,b) void *__tp_data,a b
124 #define _TP_EXDATA_PROTO4(a,b,c,d) void *__tp_data,a b,c d
125 #define _TP_EXDATA_PROTO6(a,b,c,d,e,f) void *__tp_data,a b,c d,e f
126 #define _TP_EXDATA_PROTO8(a,b,c,d,e,f,g,h) void *__tp_data,a b,c d,e f,g h
127 #define _TP_EXDATA_PROTO10(a,b,c,d,e,f,g,h,i,j) void *__tp_data,a b,c d,e f,g h,i j
128 #define _TP_EXDATA_PROTO12(a,b,c,d,e,f,g,h,i,j,k,l) void *__tp_data,a b,c d,e f,g h,i j,k l
129 #define _TP_EXDATA_PROTO14(a,b,c,d,e,f,g,h,i,j,k,l,m,n) void *__tp_data,a b,c d,e f,g h,i j,k l,m n
130 #define _TP_EXDATA_PROTO16(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p) void *__tp_data,a b,c d,e f,g h,i j,k l,m n,o p
131 #define _TP_EXDATA_PROTO18(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r) void *__tp_data,a b,c d,e f,g h,i j,k l,m n,o p,q r
132 #define _TP_EXDATA_PROTO20(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t) void *__tp_data,a b,c d,e f,g h,i j,k l,m n,o p,q r,s t
134 /* Preprocessor trick to count arguments. Inspired from sdt.h. */
135 #define _TP_NARGS(...) __TP_NARGS(__VA_ARGS__, 20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0)
136 #define __TP_NARGS(_0,_1,_2,_3,_4,_5,_6,_7,_8,_9,_10,_11,_12,_13,_14,_15,_16,_17,_18,_19,_20, N, ...) N
137 #define _TP_PROTO_N(N, ...) _TP_PARAMS(_TP_COMBINE_TOKENS(_TP_EXPROTO, N)(__VA_ARGS__))
138 #define _TP_VAR_N(N, ...) _TP_PARAMS(_TP_COMBINE_TOKENS(_TP_EXVAR, N)(__VA_ARGS__))
139 #define _TP_DATA_PROTO_N(N, ...) _TP_PARAMS(_TP_COMBINE_TOKENS(_TP_EXDATA_PROTO, N)(__VA_ARGS__))
140 #define _TP_DATA_VAR_N(N, ...) _TP_PARAMS(_TP_COMBINE_TOKENS(_TP_EXDATA_VAR, N)(__VA_ARGS__))
141 #define _TP_ARGS_PROTO(...) _TP_PROTO_N(_TP_NARGS(0, ##__VA_ARGS__), ##__VA_ARGS__)
142 #define _TP_ARGS_VAR(...) _TP_VAR_N(_TP_NARGS(0, ##__VA_ARGS__), ##__VA_ARGS__)
143 #define _TP_ARGS_DATA_PROTO(...) _TP_DATA_PROTO_N(_TP_NARGS(0, ##__VA_ARGS__), ##__VA_ARGS__)
144 #define _TP_ARGS_DATA_VAR(...) _TP_DATA_VAR_N(_TP_NARGS(0, ##__VA_ARGS__), ##__VA_ARGS__)
145 #define _TP_PARAMS(...) __VA_ARGS__
147 #define _DECLARE_TRACEPOINT(_provider, _name, ...) \
148 extern struct tracepoint __tracepoint_##_provider##___##_name; \
149 static inline lttng_ust_notrace \
150 void __tracepoint_cb_##_provider##___##_name(_TP_ARGS_PROTO(__VA_ARGS__)); \
152 void __tracepoint_cb_##_provider##___##_name(_TP_ARGS_PROTO(__VA_ARGS__)) \
154 struct tracepoint_probe *__tp_probe; \
156 if (!TP_RCU_LINK_TEST()) \
158 tp_rcu_read_lock_bp(); \
159 __tp_probe = tp_rcu_dereference_bp(__tracepoint_##_provider##___##_name.probes); \
160 if (caa_unlikely(!__tp_probe)) \
163 void (*__tp_cb)(void) = __tp_probe->func; \
164 void *__tp_data = __tp_probe->data; \
166 URCU_FORCE_CAST(void (*)(_TP_ARGS_DATA_PROTO(__VA_ARGS__)), __tp_cb) \
167 (_TP_ARGS_DATA_VAR(__VA_ARGS__)); \
168 } while ((++__tp_probe)->func); \
170 tp_rcu_read_unlock_bp(); \
172 static inline lttng_ust_notrace \
173 void __tracepoint_register_##_provider##___##_name(char *name, \
174 void (*func)(void), void *data); \
176 void __tracepoint_register_##_provider##___##_name(char *name, \
177 void (*func)(void), void *data) \
179 __tracepoint_probe_register(name, func, data, \
180 __tracepoint_##_provider##___##_name.signature); \
182 static inline lttng_ust_notrace \
183 void __tracepoint_unregister_##_provider##___##_name(char *name, \
184 void (*func)(void), void *data); \
186 void __tracepoint_unregister_##_provider##___##_name(char *name, \
187 void (*func)(void), void *data) \
189 __tracepoint_probe_unregister(name, func, data); \
192 extern int __tracepoint_probe_register(const char *name
, void (*func
)(void),
193 void *data
, const char *signature
);
194 extern int __tracepoint_probe_unregister(const char *name
, void (*func
)(void),
198 * tracepoint dynamic linkage handling (callbacks). Hidden visibility:
199 * shared across objects in a module/main executable.
201 struct tracepoint_dlopen
{
202 void *liblttngust_handle
;
204 int (*tracepoint_register_lib
)(struct tracepoint
* const *tracepoints_start
,
205 int tracepoints_count
);
206 int (*tracepoint_unregister_lib
)(struct tracepoint
* const *tracepoints_start
);
208 void (*rcu_read_lock_sym_bp
)(void);
209 void (*rcu_read_unlock_sym_bp
)(void);
210 void *(*rcu_dereference_sym_bp
)(void *p
);
214 extern struct tracepoint_dlopen tracepoint_dlopen
;
216 #ifdef TRACEPOINT_DEFINE
219 * These weak symbols, the constructor, and destructor take care of
220 * registering only _one_ instance of the tracepoints per shared-ojbect
221 * (or for the whole main program).
223 extern struct tracepoint
* const __start___tracepoints_ptrs
[]
224 __attribute__((weak
, visibility("hidden")));
225 extern struct tracepoint
* const __stop___tracepoints_ptrs
[]
226 __attribute__((weak
, visibility("hidden")));
229 * When TRACEPOINT_PROBE_DYNAMIC_LINKAGE is defined, we do not emit a
230 * unresolved symbol that requires the provider to be linked in. When
231 * TRACEPOINT_PROBE_DYNAMIC_LINKAGE is not defined, we emit an
232 * unresolved symbol that depends on having the provider linked in,
233 * otherwise the linker complains. This deals with use of static
234 * libraries, ensuring that the linker does not remove the provider
235 * object from the executable.
237 #ifdef TRACEPOINT_PROBE_DYNAMIC_LINKAGE
238 #define _TRACEPOINT_UNDEFINED_REF(provider) NULL
239 #else /* TRACEPOINT_PROBE_DYNAMIC_LINKAGE */
240 #define _TRACEPOINT_UNDEFINED_REF(provider) &__tracepoint_provider_##provider
241 #endif /* TRACEPOINT_PROBE_DYNAMIC_LINKAGE */
244 * Note: to allow PIC code, we need to allow the linker to update the pointers
245 * in the __tracepoints_ptrs section.
246 * Therefore, this section is _not_ const (read-only).
248 #define _TP_EXTRACT_STRING(...) #__VA_ARGS__
250 #define _DEFINE_TRACEPOINT(_provider, _name, _args) \
251 extern int __tracepoint_provider_##_provider; \
252 static const char __tp_strtab_##_provider##___##_name[] \
253 __attribute__((section("__tracepoints_strings"))) = \
254 #_provider ":" #_name; \
255 struct tracepoint __tracepoint_##_provider##___##_name \
256 __attribute__((section("__tracepoints"))) = \
258 __tp_strtab_##_provider##___##_name, \
261 _TRACEPOINT_UNDEFINED_REF(_provider), \
262 _TP_EXTRACT_STRING(_args), \
264 static struct tracepoint * __tracepoint_ptr_##_provider##___##_name \
265 __attribute__((used, section("__tracepoints_ptrs"))) = \
266 &__tracepoint_##_provider##___##_name;
268 static inline void __tracepoints__init_define(void)
270 tracepoint_dlopen
.tracepoint_register_lib(__start___tracepoints_ptrs
,
271 __stop___tracepoints_ptrs
-
272 __start___tracepoints_ptrs
);
275 static inline void __tracepoints__destroy_define(void)
277 if (tracepoint_dlopen
.tracepoint_unregister_lib
)
278 tracepoint_dlopen
.tracepoint_unregister_lib(__start___tracepoints_ptrs
);
282 #else /* TRACEPOINT_DEFINE */
284 #define _DEFINE_TRACEPOINT(_provider, _name, _args)
286 static inline void __tracepoints__init_define(void)
290 static inline void __tracepoints__destroy_define(void)
294 #endif /* #else TRACEPOINT_DEFINE */
296 #if defined(TRACEPOINT_DEFINE) || defined(TRACEPOINT_CREATE_PROBES)
299 * These weak symbols, the constructor, and destructor take care of
300 * registering only _one_ instance of the tracepoints per shared-ojbect
301 * (or for the whole main program).
303 int __tracepoint_registered
304 __attribute__((weak
, visibility("hidden")));
305 struct tracepoint_dlopen tracepoint_dlopen
306 __attribute__((weak
, visibility("hidden")));
308 static void lttng_ust_notrace
__attribute__((constructor
))
309 __tracepoints__init(void);
311 __tracepoints__init(void)
313 if (__tracepoint_registered
++)
316 tracepoint_dlopen
.liblttngust_handle
=
317 dlopen("liblttng-ust-tracepoint.so.0", RTLD_NOW
| RTLD_GLOBAL
);
318 if (!tracepoint_dlopen
.liblttngust_handle
)
320 tracepoint_dlopen
.tracepoint_register_lib
=
321 URCU_FORCE_CAST(int (*)(struct tracepoint
* const *, int),
322 dlsym(tracepoint_dlopen
.liblttngust_handle
,
323 "tracepoint_register_lib"));
324 tracepoint_dlopen
.tracepoint_unregister_lib
=
325 URCU_FORCE_CAST(int (*)(struct tracepoint
* const *),
326 dlsym(tracepoint_dlopen
.liblttngust_handle
,
327 "tracepoint_unregister_lib"));
329 tracepoint_dlopen
.rcu_read_lock_sym_bp
=
330 URCU_FORCE_CAST(void (*)(void),
331 dlsym(tracepoint_dlopen
.liblttngust_handle
,
332 "tp_rcu_read_lock_bp"));
333 tracepoint_dlopen
.rcu_read_unlock_sym_bp
=
334 URCU_FORCE_CAST(void (*)(void),
335 dlsym(tracepoint_dlopen
.liblttngust_handle
,
336 "tp_rcu_read_unlock_bp"));
337 tracepoint_dlopen
.rcu_dereference_sym_bp
=
338 URCU_FORCE_CAST(void *(*)(void *p
),
339 dlsym(tracepoint_dlopen
.liblttngust_handle
,
340 "tp_rcu_dereference_sym_bp"));
342 __tracepoints__init_define();
345 static void lttng_ust_notrace
__attribute__((destructor
))
346 __tracepoints__destroy(void);
348 __tracepoints__destroy(void)
352 if (--__tracepoint_registered
)
354 __tracepoints__destroy_define();
355 if (tracepoint_dlopen
.liblttngust_handle
) {
356 ret
= dlclose(tracepoint_dlopen
.liblttngust_handle
);
358 memset(&tracepoint_dlopen
, 0, sizeof(tracepoint_dlopen
));
368 #endif /* _LTTNG_TRACEPOINT_H */
370 /* The following declarations must be outside re-inclusion protection. */
372 #ifndef TRACEPOINT_EVENT
375 * How to use the TRACEPOINT_EVENT macro:
379 * TRACEPOINT_EVENT(someproject_component, event_name,
381 * * TP_ARGS takes from 0 to 10 "type, field_name" pairs *
383 * TP_ARGS(int, arg0, void *, arg1, char *, string, size_t, strlen,
384 * long *, arg4, size_t, arg4_len),
386 * * TP_FIELDS describes the event payload layout in the trace *
389 * * Integer, printed in base 10 *
390 * ctf_integer(int, field_a, arg0)
392 * * Integer, printed with 0x base 16 *
393 * ctf_integer_hex(unsigned long, field_d, arg1)
395 * * Array Sequence, printed as UTF8-encoded array of bytes *
396 * ctf_array_text(char, field_b, string, FIXED_LEN)
397 * ctf_sequence_text(char, field_c, string, size_t, strlen)
399 * * String, printed as UTF8-encoded string *
400 * ctf_string(field_e, string)
402 * * Array sequence of signed integer values *
403 * ctf_array(long, field_f, arg4, FIXED_LEN4)
404 * ctf_sequence(long, field_g, arg4, size_t, arg4_len)
408 * More detailed explanation:
410 * The name of the tracepoint is expressed as a tuple with the provider
411 * and name arguments.
413 * The provider and name should be a proper C99 identifier.
414 * The "provider" and "name" MUST follow these rules to ensure no
415 * namespace clash occurs:
417 * For projects (applications and libraries) for which an entity
418 * specific to the project controls the source code and thus its
419 * tracepoints (typically with a scope larger than a single company):
422 * project_component, event
426 * Where "project" is the name of the project,
427 * "component" is the name of the project component (which may
428 * include several levels of sub-components, e.g.
429 * ...component_subcomponent_...) where the tracepoint is located
431 * "event" is the name of the tracepoint event.
433 * For projects issued from a single company wishing to advertise that
434 * the company controls the source code and thus the tracepoints, the
435 * "com_" prefix should be used:
438 * com_company_project_component, event
440 * com_company_project, event
442 * Where "company" is the name of the company,
443 * "project" is the name of the project,
444 * "component" is the name of the project component (which may
445 * include several levels of sub-components, e.g.
446 * ...component_subcomponent_...) where the tracepoint is located
448 * "event" is the name of the tracepoint event.
450 * the provider:event identifier is limited to 127 characters.
453 #define TRACEPOINT_EVENT(provider, name, args, fields) \
454 _DECLARE_TRACEPOINT(provider, name, _TP_PARAMS(args)) \
455 _DEFINE_TRACEPOINT(provider, name, _TP_PARAMS(args))
457 #define TRACEPOINT_EVENT_CLASS(provider, name, args, fields)
459 #define TRACEPOINT_EVENT_INSTANCE(provider, _template, name, args) \
460 _DECLARE_TRACEPOINT(provider, name, _TP_PARAMS(args)) \
461 _DEFINE_TRACEPOINT(provider, name, _TP_PARAMS(args))
463 #endif /* #ifndef TRACEPOINT_EVENT */
465 #ifndef TRACEPOINT_LOGLEVEL
468 * Tracepoint Loglevels
470 * Typical use of these loglevels:
472 * The loglevels go from 0 to 14. Higher numbers imply the most
473 * verbosity (higher event throughput expected.
475 * Loglevels 0 through 6, and loglevel 14, match syslog(3) loglevels
476 * semantic. Loglevels 7 through 13 offer more fine-grained selection of
483 * action must be taken immediately
486 * critical conditions
495 * normal, but significant, condition
498 * informational message
500 * TRACE_DEBUG_SYSTEM 7
501 * debug information with system-level scope (set of programs)
503 * TRACE_DEBUG_PROGRAM 8
504 * debug information with program-level scope (set of processes)
506 * TRACE_DEBUG_PROCESS 9
507 * debug information with process-level scope (set of modules)
509 * TRACE_DEBUG_MODULE 10
510 * debug information with module (executable/library) scope (set of units)
512 * TRACE_DEBUG_UNIT 11
513 * debug information with compilation unit scope (set of functions)
515 * TRACE_DEBUG_FUNCTION 12
516 * debug information with function-level scope
518 * TRACE_DEBUG_LINE 13
519 * debug information with line-level scope (TRACEPOINT_EVENT default)
522 * debug-level message (trace_printf default)
524 * Declare tracepoint loglevels for tracepoints. A TRACEPOINT_EVENT
525 * should be declared prior to the the TRACEPOINT_LOGLEVEL for a given
526 * tracepoint name. The first field is the provider name, the second
527 * field is the name of the tracepoint, the third field is the loglevel
530 * TRACEPOINT_LOGLEVEL(< [com_company_]project[_component] >, < event >,
533 * The TRACEPOINT_PROVIDER must be already declared before declaring a
534 * TRACEPOINT_LOGLEVEL.
545 TRACE_DEBUG_SYSTEM
= 7,
546 TRACE_DEBUG_PROGRAM
= 8,
547 TRACE_DEBUG_PROCESS
= 9,
548 TRACE_DEBUG_MODULE
= 10,
549 TRACE_DEBUG_UNIT
= 11,
550 TRACE_DEBUG_FUNCTION
= 12,
551 TRACE_DEBUG_LINE
= 13,
555 #define TRACEPOINT_LOGLEVEL(provider, name, loglevel)
557 #endif /* #ifndef TRACEPOINT_LOGLEVEL */
559 #ifndef TRACEPOINT_MODEL_EMF_URI
561 #define TRACEPOINT_MODEL_EMF_URI(provider, name, uri)
563 #endif /* #ifndef TRACEPOINT_MODEL_EMF_URI */