Commit | Line | Data |
---|---|---|
1c324e59 | 1 | /* |
c0c0989a | 2 | * SPDX-License-Identifier: MIT |
1c324e59 | 3 | * |
c0c0989a | 4 | * Copyright (C) 2011-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
1c324e59 MD |
5 | */ |
6 | ||
fb31eb73 | 7 | #include <stdint.h> |
1c324e59 | 8 | #include <stdio.h> |
7d381d6e | 9 | #include <stdlib.h> |
1c324e59 | 10 | #include <urcu/compiler.h> |
f488575f | 11 | #include <urcu/rculist.h> |
1c324e59 | 12 | #include <lttng/ust-events.h> |
0b4b8811 | 13 | #include <lttng/ust-ringbuffer-context.h> |
2eba8e39 | 14 | #include <lttng/ust-arch.h> |
a8909ba5 | 15 | #include <lttng/ust-compiler.h> |
000b8662 | 16 | #include <lttng/tracepoint.h> |
3208818b | 17 | #include <lttng/ust-endian.h> |
4849bc7a | 18 | #include <lttng/ust-api-compat.h> |
44c72f10 | 19 | #include <string.h> |
1c324e59 | 20 | |
ee0889a3 | 21 | #define LTTNG_UST__NULL_STRING "(null)" |
24a39530 | 22 | |
000b8662 MD |
23 | #undef tp_list_for_each_entry_rcu |
24 | #define tp_list_for_each_entry_rcu(pos, head, member) \ | |
10544ee8 | 25 | for (pos = cds_list_entry(tp_rcu_dereference((head)->next), __typeof__(*pos), member); \ |
000b8662 | 26 | &pos->member != (head); \ |
10544ee8 | 27 | pos = cds_list_entry(tp_rcu_dereference(pos->member.next), __typeof__(*pos), member)) |
000b8662 | 28 | |
1c324e59 | 29 | /* |
7f2f82c3 | 30 | * LTTNG_UST_TRACEPOINT_EVENT_CLASS declares a class of tracepoints receiving the |
1c324e59 MD |
31 | * same arguments and having the same field layout. |
32 | * | |
7f2f82c3 | 33 | * LTTNG_UST_TRACEPOINT_EVENT_INSTANCE declares an instance of a tracepoint, with |
1c324e59 MD |
34 | * its own provider and name. It refers to a class (template). |
35 | * | |
7f2f82c3 | 36 | * LTTNG_UST_TRACEPOINT_EVENT declared both a class and an instance and does a |
1c324e59 MD |
37 | * direct mapping from the instance to the class. |
38 | */ | |
39 | ||
7f2f82c3 MJ |
40 | #undef LTTNG_UST_TRACEPOINT_EVENT |
41 | #define LTTNG_UST_TRACEPOINT_EVENT(_provider, _name, _args, _fields) \ | |
42 | LTTNG_UST__TRACEPOINT_EVENT_CLASS(_provider, _name, \ | |
6eddcb06 MJ |
43 | LTTNG_UST__TP_PARAMS(_args), \ |
44 | LTTNG_UST__TP_PARAMS(_fields)) \ | |
7f2f82c3 | 45 | LTTNG_UST__TRACEPOINT_EVENT_INSTANCE(_provider, _name, _name, \ |
6eddcb06 | 46 | LTTNG_UST__TP_PARAMS(_args)) |
1c324e59 | 47 | |
7f2f82c3 MJ |
48 | #undef LTTNG_UST_TRACEPOINT_EVENT_CLASS |
49 | #define LTTNG_UST_TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields) \ | |
6eddcb06 | 50 | LTTNG_UST__TRACEPOINT_EVENT_CLASS(_provider, _name, LTTNG_UST__TP_PARAMS(_args), LTTNG_UST__TP_PARAMS(_fields)) |
f8021d08 | 51 | |
7f2f82c3 MJ |
52 | #undef LTTNG_UST_TRACEPOINT_EVENT_INSTANCE |
53 | #define LTTNG_UST_TRACEPOINT_EVENT_INSTANCE(_provider, _template, _name, _args) \ | |
6eddcb06 | 54 | LTTNG_UST__TRACEPOINT_EVENT_INSTANCE(_provider, _template, _name, LTTNG_UST__TP_PARAMS(_args)) |
f8021d08 | 55 | |
1c324e59 MD |
56 | /* Helpers */ |
57 | #define _TP_ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0])) | |
58 | ||
59 | #define _tp_max_t(type, x, y) \ | |
60 | ({ \ | |
61 | type __max1 = (x); \ | |
62 | type __max2 = (y); \ | |
63 | __max1 > __max2 ? __max1: __max2; \ | |
64 | }) | |
65 | ||
66 | /* | |
67 | * Stage 0 of tracepoint event generation. | |
68 | * | |
7f2f82c3 | 69 | * Check that each LTTNG_UST_TRACEPOINT_EVENT provider argument match the |
5b393d64 | 70 | * LTTNG_UST_TRACEPOINT_PROVIDER by creating dummy callbacks. |
1c324e59 MD |
71 | */ |
72 | ||
7f2f82c3 | 73 | /* Reset all macros within LTTNG_UST_TRACEPOINT_EVENT */ |
1c324e59 MD |
74 | #include <lttng/ust-tracepoint-event-reset.h> |
75 | ||
106ff4da | 76 | static inline |
5b393d64 | 77 | void LTTNG_UST__TP_COMBINE_TOKENS(lttng_ust_tracepoint_provider_mismatch_, LTTNG_UST_TRACEPOINT_PROVIDER)(void) |
106ff4da | 78 | lttng_ust_notrace; |
1c324e59 | 79 | static inline |
5b393d64 | 80 | void LTTNG_UST__TP_COMBINE_TOKENS(lttng_ust_tracepoint_provider_mismatch_, LTTNG_UST_TRACEPOINT_PROVIDER)(void) |
1c324e59 MD |
81 | { |
82 | } | |
83 | ||
7f2f82c3 MJ |
84 | #undef LTTNG_UST__TRACEPOINT_EVENT_CLASS |
85 | #define LTTNG_UST__TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields) \ | |
0274f7f2 | 86 | lttng_ust_tracepoint_provider_mismatch_##_provider(); |
1c324e59 | 87 | |
7f2f82c3 MJ |
88 | #undef LTTNG_UST__TRACEPOINT_EVENT_INSTANCE |
89 | #define LTTNG_UST__TRACEPOINT_EVENT_INSTANCE(_provider, _template, _name, _args) \ | |
0274f7f2 | 90 | lttng_ust_tracepoint_provider_mismatch_##_provider(); |
1c324e59 | 91 | |
106ff4da | 92 | static inline |
5b393d64 | 93 | void LTTNG_UST__TP_COMBINE_TOKENS(lttng_ust_tracepoint_provider_check_, LTTNG_UST_TRACEPOINT_PROVIDER)(void) |
106ff4da | 94 | lttng_ust_notrace; |
e8bd1da7 | 95 | static inline |
5b393d64 | 96 | void LTTNG_UST__TP_COMBINE_TOKENS(lttng_ust_tracepoint_provider_check_, LTTNG_UST_TRACEPOINT_PROVIDER)(void) |
1c324e59 | 97 | { |
bb71a8ea | 98 | #include LTTNG_UST_TRACEPOINT_INCLUDE |
1c324e59 MD |
99 | } |
100 | ||
f56cd1d5 MD |
101 | /* |
102 | * Stage 0.1 of tracepoint event generation. | |
103 | * | |
7f2f82c3 | 104 | * Check that each LTTNG_UST_TRACEPOINT_EVENT provider:name does not exceed the |
f56cd1d5 MD |
105 | * tracepoint name length limit. |
106 | */ | |
107 | ||
7f2f82c3 | 108 | /* Reset all macros within LTTNG_UST_TRACEPOINT_EVENT */ |
f56cd1d5 MD |
109 | #include <lttng/ust-tracepoint-event-reset.h> |
110 | ||
7f2f82c3 MJ |
111 | #undef LTTNG_UST__TRACEPOINT_EVENT_INSTANCE |
112 | #define LTTNG_UST__TRACEPOINT_EVENT_INSTANCE(_provider, _template, _name, _args) \ | |
81b16412 | 113 | lttng_ust_tracepoint_validate_name_len(_provider, _name); |
f56cd1d5 | 114 | |
bb71a8ea | 115 | #include LTTNG_UST_TRACEPOINT_INCLUDE |
f56cd1d5 | 116 | |
c75c0422 MD |
117 | /* |
118 | * Stage 0.2 of tracepoint event generation. | |
119 | * | |
120 | * Create dummy trace prototypes for each event class, and for each used | |
121 | * template. This will allow checking whether the prototypes from the | |
122 | * class and the instance using the class actually match. | |
123 | */ | |
124 | ||
7f2f82c3 | 125 | /* Reset all macros within LTTNG_UST_TRACEPOINT_EVENT */ |
c75c0422 MD |
126 | #include <lttng/ust-tracepoint-event-reset.h> |
127 | ||
cadfcbfc MJ |
128 | #undef LTTNG_UST_TP_ARGS |
129 | #define LTTNG_UST_TP_ARGS(...) __VA_ARGS__ | |
c75c0422 | 130 | |
7f2f82c3 MJ |
131 | #undef LTTNG_UST__TRACEPOINT_EVENT_INSTANCE |
132 | #define LTTNG_UST__TRACEPOINT_EVENT_INSTANCE(_provider, _template, _name, _args) \ | |
6eddcb06 | 133 | void __event_template_proto___##_provider##___##_template(LTTNG_UST__TP_ARGS_DATA_PROTO(_args)); |
c75c0422 | 134 | |
7f2f82c3 MJ |
135 | #undef LTTNG_UST__TRACEPOINT_EVENT_CLASS |
136 | #define LTTNG_UST__TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields) \ | |
6eddcb06 | 137 | void __event_template_proto___##_provider##___##_name(LTTNG_UST__TP_ARGS_DATA_PROTO(_args)); |
c75c0422 | 138 | |
bb71a8ea | 139 | #include LTTNG_UST_TRACEPOINT_INCLUDE |
c75c0422 | 140 | |
c785c634 MD |
141 | /* |
142 | * Stage 0.9 of tracepoint event generation | |
143 | * | |
144 | * Unfolding the enums | |
145 | */ | |
146 | #include <lttng/ust-tracepoint-event-reset.h> | |
147 | ||
148 | /* Enumeration entry (single value) */ | |
149 | #undef ctf_enum_value | |
150 | #define ctf_enum_value(_string, _value) \ | |
5defa774 | 151 | LTTNG_UST_COMPOUND_LITERAL(const struct lttng_ust_enum_entry, { \ |
891d6b55 | 152 | .struct_size = sizeof(struct lttng_ust_enum_entry), \ |
a6f80644 | 153 | .start = { \ |
eae3c729 | 154 | .value = lttng_ust_is_signed_type(__typeof__(_value)) ? \ |
a6f80644 | 155 | (long long) (_value) : (_value), \ |
eae3c729 | 156 | .signedness = lttng_ust_is_signed_type(__typeof__(_value)), \ |
a6f80644 MD |
157 | }, \ |
158 | .end = { \ | |
eae3c729 | 159 | .value = lttng_ust_is_signed_type(__typeof__(_value)) ? \ |
a6f80644 | 160 | (long long) (_value) : (_value), \ |
eae3c729 | 161 | .signedness = lttng_ust_is_signed_type(__typeof__(_value)), \ |
a6f80644 MD |
162 | }, \ |
163 | .string = (_string), \ | |
891d6b55 | 164 | }), |
c785c634 MD |
165 | |
166 | /* Enumeration entry (range) */ | |
167 | #undef ctf_enum_range | |
168 | #define ctf_enum_range(_string, _range_start, _range_end) \ | |
5defa774 | 169 | LTTNG_UST_COMPOUND_LITERAL(const struct lttng_ust_enum_entry, { \ |
891d6b55 | 170 | .struct_size = sizeof(struct lttng_ust_enum_entry), \ |
a6f80644 | 171 | .start = { \ |
eae3c729 | 172 | .value = lttng_ust_is_signed_type(__typeof__(_range_start)) ? \ |
a6f80644 | 173 | (long long) (_range_start) : (_range_start), \ |
eae3c729 | 174 | .signedness = lttng_ust_is_signed_type(__typeof__(_range_start)), \ |
a6f80644 MD |
175 | }, \ |
176 | .end = { \ | |
eae3c729 | 177 | .value = lttng_ust_is_signed_type(__typeof__(_range_end)) ? \ |
a6f80644 | 178 | (long long) (_range_end) : (_range_end), \ |
eae3c729 | 179 | .signedness = lttng_ust_is_signed_type(__typeof__(_range_end)), \ |
a6f80644 MD |
180 | }, \ |
181 | .string = (_string), \ | |
891d6b55 | 182 | }), |
c785c634 | 183 | |
3e762260 PP |
184 | /* Enumeration entry (automatic value; follows the rules of CTF) */ |
185 | #undef ctf_enum_auto | |
891d6b55 | 186 | #define ctf_enum_auto(_string) \ |
5defa774 | 187 | LTTNG_UST_COMPOUND_LITERAL(const struct lttng_ust_enum_entry, { \ |
891d6b55 | 188 | .struct_size = sizeof(struct lttng_ust_enum_entry), \ |
3e762260 PP |
189 | .start = { \ |
190 | .value = -1ULL, \ | |
191 | .signedness = 0, \ | |
192 | }, \ | |
193 | .end = { \ | |
194 | .value = -1ULL, \ | |
195 | .signedness = 0, \ | |
196 | }, \ | |
197 | .string = (_string), \ | |
1a37a873 | 198 | .options = LTTNG_UST_ENUM_ENTRY_OPTION_IS_AUTO, \ |
891d6b55 | 199 | }), |
3e762260 | 200 | |
4849bc7a MJ |
201 | #undef LTTNG_UST_TP_ENUM_VALUES |
202 | #define LTTNG_UST_TP_ENUM_VALUES(...) \ | |
c785c634 MD |
203 | __VA_ARGS__ |
204 | ||
4849bc7a MJ |
205 | #if LTTNG_UST_COMPAT_API(0) |
206 | # undef TP_ENUM_VALUES | |
207 | # define TP_ENUM_VALUES LTTNG_UST_TP_ENUM_VALUES | |
208 | #endif /* #if LTTNG_UST_COMPAT_API(0) */ | |
209 | ||
2ebf164b MJ |
210 | #undef LTTNG_UST_TRACEPOINT_ENUM |
211 | #define LTTNG_UST_TRACEPOINT_ENUM(_provider, _name, _values) \ | |
3d33ca1d | 212 | const struct lttng_ust_enum_entry * const __enum_values__##_provider##_##_name[] = { \ |
c785c634 | 213 | _values \ |
1c80c909 | 214 | ctf_enum_value("", 0) /* Dummy, 0-len array forbidden by C99. */ \ |
c785c634 | 215 | }; |
bb71a8ea | 216 | #include LTTNG_UST_TRACEPOINT_INCLUDE |
2df82195 FD |
217 | |
218 | /* | |
219 | * Stage 0.9.1 | |
220 | * Verifying array and sequence elements are of an integer type. | |
221 | */ | |
222 | ||
7f2f82c3 | 223 | /* Reset all macros within LTTNG_UST_TRACEPOINT_EVENT */ |
2df82195 FD |
224 | #include <lttng/ust-tracepoint-event-reset.h> |
225 | #include <lttng/ust-tracepoint-event-write.h> | |
226 | #include <lttng/ust-tracepoint-event-nowrite.h> | |
227 | ||
228 | #undef _ctf_array_encoded | |
229 | #define _ctf_array_encoded(_type, _item, _src, _byte_order, \ | |
230 | _length, _encoding, _nowrite, \ | |
231 | _elem_type_base) \ | |
b4c54822 | 232 | lttng_ust_ctf_array_element_type_is_supported(_type, _item); |
2df82195 FD |
233 | |
234 | #undef _ctf_sequence_encoded | |
235 | #define _ctf_sequence_encoded(_type, _item, _src, _byte_order, \ | |
236 | _length_type, _src_length, _encoding, _nowrite, \ | |
237 | _elem_type_base) \ | |
b4c54822 | 238 | lttng_ust_ctf_array_element_type_is_supported(_type, _item); |
2df82195 | 239 | |
efa14d16 MJ |
240 | #undef LTTNG_UST_TP_FIELDS |
241 | #define LTTNG_UST_TP_FIELDS(...) __VA_ARGS__ /* Only one used in this phase */ | |
2df82195 | 242 | |
7f2f82c3 MJ |
243 | #undef LTTNG_UST__TRACEPOINT_EVENT_CLASS |
244 | #define LTTNG_UST__TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields) \ | |
2df82195 | 245 | _fields |
c785c634 | 246 | |
bb71a8ea | 247 | #include LTTNG_UST_TRACEPOINT_INCLUDE |
c785c634 | 248 | |
1c324e59 MD |
249 | /* |
250 | * Stage 1 of tracepoint event generation. | |
251 | * | |
252 | * Create event field type metadata section. | |
253 | * Each event produce an array of fields. | |
254 | */ | |
255 | ||
7f2f82c3 | 256 | /* Reset all macros within LTTNG_UST_TRACEPOINT_EVENT */ |
1c324e59 | 257 | #include <lttng/ust-tracepoint-event-reset.h> |
4774c8f3 MD |
258 | #include <lttng/ust-tracepoint-event-write.h> |
259 | #include <lttng/ust-tracepoint-event-nowrite.h> | |
1c324e59 | 260 | |
4774c8f3 | 261 | #undef _ctf_integer_ext |
25cff019 | 262 | #define _ctf_integer_ext(_type, _item, _src, _byte_order, _base, _nowrite) \ |
5defa774 | 263 | LTTNG_UST_COMPOUND_LITERAL(const struct lttng_ust_event_field, { \ |
25cff019 MD |
264 | .struct_size = sizeof(struct lttng_ust_event_field), \ |
265 | .name = #_item, \ | |
a084756d | 266 | .type = lttng_ust_type_integer_define(_type, _byte_order, _base), \ |
25cff019 MD |
267 | .nowrite = _nowrite, \ |
268 | .nofilter = 0, \ | |
269 | }), | |
1c324e59 | 270 | |
4774c8f3 | 271 | #undef _ctf_float |
180901e6 | 272 | #define _ctf_float(_type, _item, _src, _nowrite) \ |
5defa774 | 273 | LTTNG_UST_COMPOUND_LITERAL(const struct lttng_ust_event_field, { \ |
25cff019 MD |
274 | .struct_size = sizeof(struct lttng_ust_event_field), \ |
275 | .name = #_item, \ | |
a084756d | 276 | .type = lttng_ust_type_float_define(_type), \ |
25cff019 MD |
277 | .nowrite = _nowrite, \ |
278 | .nofilter = 0, \ | |
279 | }), | |
1c324e59 | 280 | |
4774c8f3 | 281 | #undef _ctf_array_encoded |
f3ec4cb5 MD |
282 | #define _ctf_array_encoded(_type, _item, _src, _byte_order, \ |
283 | _length, _encoding, _nowrite, \ | |
284 | _elem_type_base) \ | |
5defa774 | 285 | LTTNG_UST_COMPOUND_LITERAL(const struct lttng_ust_event_field, { \ |
25cff019 MD |
286 | .struct_size = sizeof(struct lttng_ust_event_field), \ |
287 | .name = #_item, \ | |
5defa774 | 288 | .type = (const struct lttng_ust_type_common *) LTTNG_UST_COMPOUND_LITERAL(const struct lttng_ust_type_array, { \ |
a084756d MD |
289 | .parent = { \ |
290 | .type = lttng_ust_type_array, \ | |
291 | }, \ | |
292 | .struct_size = sizeof(struct lttng_ust_type_array), \ | |
293 | .elem_type = lttng_ust_type_integer_define(_type, _byte_order, _elem_type_base), \ | |
294 | .length = _length, \ | |
295 | .alignment = 0, \ | |
296 | .encoding = lttng_ust_string_encoding_##_encoding, \ | |
297 | }), \ | |
25cff019 MD |
298 | .nowrite = _nowrite, \ |
299 | .nofilter = 0, \ | |
300 | }), | |
1c324e59 | 301 | |
4774c8f3 | 302 | #undef _ctf_sequence_encoded |
48d660d1 | 303 | #define _ctf_sequence_encoded(_type, _item, _src, _byte_order, \ |
f968510a PP |
304 | _length_type, _src_length, _encoding, _nowrite, \ |
305 | _elem_type_base) \ | |
5defa774 | 306 | LTTNG_UST_COMPOUND_LITERAL(const struct lttng_ust_event_field, { \ |
25cff019 MD |
307 | .struct_size = sizeof(struct lttng_ust_event_field), \ |
308 | .name = "_" #_item "_length", \ | |
a084756d | 309 | .type = lttng_ust_type_integer_define(_length_type, BYTE_ORDER, 10), \ |
25cff019 MD |
310 | .nowrite = _nowrite, \ |
311 | .nofilter = 1, \ | |
312 | }), \ | |
5defa774 | 313 | LTTNG_UST_COMPOUND_LITERAL(const struct lttng_ust_event_field, { \ |
25cff019 MD |
314 | .struct_size = sizeof(struct lttng_ust_event_field), \ |
315 | .name = #_item, \ | |
5defa774 | 316 | .type = (const struct lttng_ust_type_common *) LTTNG_UST_COMPOUND_LITERAL(const struct lttng_ust_type_sequence, { \ |
a084756d MD |
317 | .parent = { \ |
318 | .type = lttng_ust_type_sequence, \ | |
1c324e59 | 319 | }, \ |
a084756d MD |
320 | .struct_size = sizeof(struct lttng_ust_type_sequence), \ |
321 | .length_name = "_" #_item "_length", \ | |
322 | .elem_type = lttng_ust_type_integer_define(_type, _byte_order, _elem_type_base), \ | |
323 | .alignment = 0, \ | |
324 | .encoding = lttng_ust_string_encoding_##_encoding, \ | |
325 | }), \ | |
25cff019 MD |
326 | .nowrite = _nowrite, \ |
327 | .nofilter = 0, \ | |
328 | }), | |
1c324e59 | 329 | |
4774c8f3 | 330 | #undef _ctf_string |
180901e6 | 331 | #define _ctf_string(_item, _src, _nowrite) \ |
5defa774 | 332 | LTTNG_UST_COMPOUND_LITERAL(const struct lttng_ust_event_field, { \ |
25cff019 MD |
333 | .struct_size = sizeof(struct lttng_ust_event_field), \ |
334 | .name = #_item, \ | |
5defa774 | 335 | .type = (const struct lttng_ust_type_common *) LTTNG_UST_COMPOUND_LITERAL(const struct lttng_ust_type_string, { \ |
a084756d MD |
336 | .parent = { \ |
337 | .type = lttng_ust_type_string, \ | |
46d52200 | 338 | }, \ |
a084756d MD |
339 | .struct_size = sizeof(struct lttng_ust_type_string), \ |
340 | .encoding = lttng_ust_string_encoding_UTF8, \ | |
341 | }), \ | |
25cff019 MD |
342 | .nowrite = _nowrite, \ |
343 | .nofilter = 0, \ | |
344 | }), | |
1c324e59 | 345 | |
5152f6df MJ |
346 | #undef _ctf_unused |
347 | #define _ctf_unused(_src) | |
348 | ||
c785c634 MD |
349 | #undef _ctf_enum |
350 | #define _ctf_enum(_provider, _name, _type, _item, _src, _nowrite) \ | |
5defa774 | 351 | LTTNG_UST_COMPOUND_LITERAL(const struct lttng_ust_event_field, { \ |
25cff019 | 352 | .struct_size = sizeof(struct lttng_ust_event_field), \ |
c785c634 | 353 | .name = #_item, \ |
5defa774 | 354 | .type = (const struct lttng_ust_type_common *) LTTNG_UST_COMPOUND_LITERAL(const struct lttng_ust_type_enum, { \ |
a084756d MD |
355 | .parent = { \ |
356 | .type = lttng_ust_type_enum, \ | |
c785c634 | 357 | }, \ |
a084756d MD |
358 | .struct_size = sizeof(struct lttng_ust_type_enum), \ |
359 | .desc = &__enum_##_provider##_##_name, \ | |
360 | .container_type = lttng_ust_type_integer_define(_type, BYTE_ORDER, 10), \ | |
361 | }), \ | |
c785c634 | 362 | .nowrite = _nowrite, \ |
25cff019 MD |
363 | .nofilter = 0, \ |
364 | }), | |
c785c634 | 365 | |
efa14d16 MJ |
366 | #undef LTTNG_UST_TP_FIELDS |
367 | #define LTTNG_UST_TP_FIELDS(...) __VA_ARGS__ /* Only one used in this phase */ | |
1c324e59 | 368 | |
7f2f82c3 MJ |
369 | #undef LTTNG_UST__TRACEPOINT_EVENT_CLASS |
370 | #define LTTNG_UST__TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields) \ | |
3d33ca1d | 371 | static const struct lttng_ust_event_field * const __event_fields___##_provider##___##_name[] = { \ |
1c324e59 | 372 | _fields \ |
1c80c909 | 373 | ctf_integer(int, dummy, 0) /* Dummy, C99 forbids 0-len array. */ \ |
1c324e59 MD |
374 | }; |
375 | ||
2ebf164b MJ |
376 | #undef LTTNG_UST_TRACEPOINT_ENUM |
377 | #define LTTNG_UST_TRACEPOINT_ENUM(_provider, _name, _values) \ | |
4e48b5d2 | 378 | static const struct lttng_ust_enum_desc __enum_##_provider##_##_name = { \ |
a084756d | 379 | .struct_size = sizeof(struct lttng_ust_enum_desc), \ |
c785c634 MD |
380 | .name = #_provider "_" #_name, \ |
381 | .entries = __enum_values__##_provider##_##_name, \ | |
1c80c909 | 382 | .nr_entries = _TP_ARRAY_SIZE(__enum_values__##_provider##_##_name) - 1, \ |
c785c634 MD |
383 | }; |
384 | ||
bb71a8ea | 385 | #include LTTNG_UST_TRACEPOINT_INCLUDE |
1c324e59 MD |
386 | |
387 | /* | |
388 | * Stage 2 of tracepoint event generation. | |
389 | * | |
390 | * Create probe callback prototypes. | |
391 | */ | |
392 | ||
7f2f82c3 | 393 | /* Reset all macros within LTTNG_UST_TRACEPOINT_EVENT */ |
1c324e59 MD |
394 | #include <lttng/ust-tracepoint-event-reset.h> |
395 | ||
cadfcbfc MJ |
396 | #undef LTTNG_UST_TP_ARGS |
397 | #define LTTNG_UST_TP_ARGS(...) __VA_ARGS__ | |
1c324e59 | 398 | |
7f2f82c3 MJ |
399 | #undef LTTNG_UST__TRACEPOINT_EVENT_CLASS |
400 | #define LTTNG_UST__TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields) \ | |
6eddcb06 | 401 | static void __event_probe__##_provider##___##_name(LTTNG_UST__TP_ARGS_DATA_PROTO(_args)); |
1c324e59 | 402 | |
bb71a8ea | 403 | #include LTTNG_UST_TRACEPOINT_INCLUDE |
1c324e59 MD |
404 | |
405 | /* | |
c785c634 | 406 | * Stage 3.0 of tracepoint event generation. |
1c324e59 | 407 | * |
1c324e59 MD |
408 | * Create static inline function that calculates event size. |
409 | */ | |
410 | ||
7f2f82c3 | 411 | /* Reset all macros within LTTNG_UST_TRACEPOINT_EVENT */ |
1c324e59 | 412 | #include <lttng/ust-tracepoint-event-reset.h> |
4774c8f3 | 413 | #include <lttng/ust-tracepoint-event-write.h> |
1c324e59 | 414 | |
4774c8f3 | 415 | #undef _ctf_integer_ext |
180901e6 | 416 | #define _ctf_integer_ext(_type, _item, _src, _byte_order, _base, _nowrite) \ |
5152f6df MJ |
417 | if (0) \ |
418 | (void) (_src); /* Unused */ \ | |
b5457df5 | 419 | __event_len += lttng_ust_ring_buffer_align(__event_len, lttng_ust_rb_alignof(_type)); \ |
1c324e59 MD |
420 | __event_len += sizeof(_type); |
421 | ||
4774c8f3 | 422 | #undef _ctf_float |
180901e6 | 423 | #define _ctf_float(_type, _item, _src, _nowrite) \ |
5152f6df MJ |
424 | if (0) \ |
425 | (void) (_src); /* Unused */ \ | |
b5457df5 | 426 | __event_len += lttng_ust_ring_buffer_align(__event_len, lttng_ust_rb_alignof(_type)); \ |
1c324e59 MD |
427 | __event_len += sizeof(_type); |
428 | ||
4774c8f3 | 429 | #undef _ctf_array_encoded |
f3ec4cb5 MD |
430 | #define _ctf_array_encoded(_type, _item, _src, _byte_order, _length, _encoding, \ |
431 | _nowrite, _elem_type_base) \ | |
5152f6df MJ |
432 | if (0) \ |
433 | (void) (_src); /* Unused */ \ | |
b5457df5 | 434 | __event_len += lttng_ust_ring_buffer_align(__event_len, lttng_ust_rb_alignof(_type)); \ |
1c324e59 MD |
435 | __event_len += sizeof(_type) * (_length); |
436 | ||
4774c8f3 | 437 | #undef _ctf_sequence_encoded |
48d660d1 | 438 | #define _ctf_sequence_encoded(_type, _item, _src, _byte_order, _length_type, \ |
f968510a | 439 | _src_length, _encoding, _nowrite, _elem_type_base) \ |
5152f6df MJ |
440 | if (0) \ |
441 | (void) (_src); /* Unused */ \ | |
b5457df5 | 442 | __event_len += lttng_ust_ring_buffer_align(__event_len, lttng_ust_rb_alignof(_length_type)); \ |
1c324e59 | 443 | __event_len += sizeof(_length_type); \ |
b5457df5 | 444 | __event_len += lttng_ust_ring_buffer_align(__event_len, lttng_ust_rb_alignof(_type)); \ |
1c324e59 MD |
445 | __dynamic_len[__dynamic_len_idx] = (_src_length); \ |
446 | __event_len += sizeof(_type) * __dynamic_len[__dynamic_len_idx]; \ | |
447 | __dynamic_len_idx++; | |
448 | ||
4774c8f3 | 449 | #undef _ctf_string |
180901e6 | 450 | #define _ctf_string(_item, _src, _nowrite) \ |
24a39530 | 451 | __event_len += __dynamic_len[__dynamic_len_idx++] = \ |
ee0889a3 | 452 | strlen((_src) ? (_src) : LTTNG_UST__NULL_STRING) + 1; |
1c324e59 | 453 | |
5152f6df MJ |
454 | #undef _ctf_unused |
455 | #define _ctf_unused(_src) \ | |
456 | if (0) \ | |
457 | (void) (_src); /* Unused */ | |
458 | ||
c785c634 MD |
459 | #undef _ctf_enum |
460 | #define _ctf_enum(_provider, _name, _type, _item, _src, _nowrite) \ | |
461 | _ctf_integer_ext(_type, _item, _src, BYTE_ORDER, 10, _nowrite) | |
462 | ||
cadfcbfc MJ |
463 | #undef LTTNG_UST_TP_ARGS |
464 | #define LTTNG_UST_TP_ARGS(...) __VA_ARGS__ | |
1c324e59 | 465 | |
efa14d16 MJ |
466 | #undef LTTNG_UST_TP_FIELDS |
467 | #define LTTNG_UST_TP_FIELDS(...) __VA_ARGS__ | |
1c324e59 | 468 | |
7f2f82c3 MJ |
469 | #undef LTTNG_UST__TRACEPOINT_EVENT_CLASS |
470 | #define LTTNG_UST__TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields) \ | |
106ff4da | 471 | static inline \ |
6eddcb06 | 472 | size_t __event_get_size__##_provider##___##_name(size_t *__dynamic_len, LTTNG_UST__TP_ARGS_DATA_PROTO(_args)) \ |
106ff4da | 473 | lttng_ust_notrace; \ |
a8909ba5 | 474 | static inline \ |
5152f6df MJ |
475 | size_t __event_get_size__##_provider##___##_name( \ |
476 | size_t *__dynamic_len __attribute__((__unused__)), \ | |
6eddcb06 | 477 | LTTNG_UST__TP_ARGS_DATA_PROTO(_args)) \ |
1c324e59 MD |
478 | { \ |
479 | size_t __event_len = 0; \ | |
5152f6df | 480 | unsigned int __dynamic_len_idx __attribute__((__unused__)) = 0; \ |
1c324e59 MD |
481 | \ |
482 | if (0) \ | |
5152f6df MJ |
483 | (void) __tp_data; /* don't warn if unused */ \ |
484 | \ | |
1c324e59 MD |
485 | _fields \ |
486 | return __event_len; \ | |
487 | } | |
488 | ||
bb71a8ea | 489 | #include LTTNG_UST_TRACEPOINT_INCLUDE |
1c324e59 | 490 | |
1ddfd641 MD |
491 | /* |
492 | * Stage 3.1 of tracepoint event generation. | |
493 | * | |
494 | * Create static inline function that layout the filter stack data. | |
4774c8f3 | 495 | * We make both write and nowrite data available to the filter. |
1ddfd641 MD |
496 | */ |
497 | ||
7f2f82c3 | 498 | /* Reset all macros within LTTNG_UST_TRACEPOINT_EVENT */ |
1ddfd641 | 499 | #include <lttng/ust-tracepoint-event-reset.h> |
4774c8f3 MD |
500 | #include <lttng/ust-tracepoint-event-write.h> |
501 | #include <lttng/ust-tracepoint-event-nowrite.h> | |
1ddfd641 | 502 | |
4774c8f3 | 503 | #undef _ctf_integer_ext |
180901e6 | 504 | #define _ctf_integer_ext(_type, _item, _src, _byte_order, _base, _nowrite) \ |
eae3c729 | 505 | if (lttng_ust_is_signed_type(_type)) { \ |
3ebeea0d MD |
506 | int64_t __ctf_tmp_int64; \ |
507 | switch (sizeof(_type)) { \ | |
508 | case 1: \ | |
509 | { \ | |
510 | union { _type t; int8_t v; } __tmp = { (_type) (_src) }; \ | |
511 | __ctf_tmp_int64 = (int64_t) __tmp.v; \ | |
512 | break; \ | |
513 | } \ | |
514 | case 2: \ | |
515 | { \ | |
516 | union { _type t; int16_t v; } __tmp = { (_type) (_src) }; \ | |
39ad74cf MD |
517 | if (_byte_order != BYTE_ORDER) \ |
518 | __tmp.v = bswap_16(__tmp.v); \ | |
3ebeea0d MD |
519 | __ctf_tmp_int64 = (int64_t) __tmp.v; \ |
520 | break; \ | |
521 | } \ | |
522 | case 4: \ | |
523 | { \ | |
524 | union { _type t; int32_t v; } __tmp = { (_type) (_src) }; \ | |
39ad74cf MD |
525 | if (_byte_order != BYTE_ORDER) \ |
526 | __tmp.v = bswap_32(__tmp.v); \ | |
3ebeea0d MD |
527 | __ctf_tmp_int64 = (int64_t) __tmp.v; \ |
528 | break; \ | |
529 | } \ | |
530 | case 8: \ | |
531 | { \ | |
532 | union { _type t; int64_t v; } __tmp = { (_type) (_src) }; \ | |
39ad74cf MD |
533 | if (_byte_order != BYTE_ORDER) \ |
534 | __tmp.v = bswap_64(__tmp.v); \ | |
3ebeea0d MD |
535 | __ctf_tmp_int64 = (int64_t) __tmp.v; \ |
536 | break; \ | |
537 | } \ | |
538 | default: \ | |
539 | abort(); \ | |
540 | }; \ | |
fa099471 MD |
541 | memcpy(__stack_data, &__ctf_tmp_int64, sizeof(int64_t)); \ |
542 | } else { \ | |
3ebeea0d MD |
543 | uint64_t __ctf_tmp_uint64; \ |
544 | switch (sizeof(_type)) { \ | |
545 | case 1: \ | |
546 | { \ | |
547 | union { _type t; uint8_t v; } __tmp = { (_type) (_src) }; \ | |
548 | __ctf_tmp_uint64 = (uint64_t) __tmp.v; \ | |
549 | break; \ | |
550 | } \ | |
551 | case 2: \ | |
552 | { \ | |
553 | union { _type t; uint16_t v; } __tmp = { (_type) (_src) }; \ | |
39ad74cf MD |
554 | if (_byte_order != BYTE_ORDER) \ |
555 | __tmp.v = bswap_16(__tmp.v); \ | |
3ebeea0d MD |
556 | __ctf_tmp_uint64 = (uint64_t) __tmp.v; \ |
557 | break; \ | |
558 | } \ | |
559 | case 4: \ | |
560 | { \ | |
561 | union { _type t; uint32_t v; } __tmp = { (_type) (_src) }; \ | |
39ad74cf MD |
562 | if (_byte_order != BYTE_ORDER) \ |
563 | __tmp.v = bswap_32(__tmp.v); \ | |
3ebeea0d MD |
564 | __ctf_tmp_uint64 = (uint64_t) __tmp.v; \ |
565 | break; \ | |
566 | } \ | |
567 | case 8: \ | |
568 | { \ | |
569 | union { _type t; uint64_t v; } __tmp = { (_type) (_src) }; \ | |
39ad74cf MD |
570 | if (_byte_order != BYTE_ORDER) \ |
571 | __tmp.v = bswap_64(__tmp.v); \ | |
3ebeea0d MD |
572 | __ctf_tmp_uint64 = (uint64_t) __tmp.v; \ |
573 | break; \ | |
574 | } \ | |
575 | default: \ | |
576 | abort(); \ | |
577 | }; \ | |
fa099471 MD |
578 | memcpy(__stack_data, &__ctf_tmp_uint64, sizeof(uint64_t)); \ |
579 | } \ | |
1ddfd641 MD |
580 | __stack_data += sizeof(int64_t); |
581 | ||
4774c8f3 | 582 | #undef _ctf_float |
180901e6 | 583 | #define _ctf_float(_type, _item, _src, _nowrite) \ |
fa099471 MD |
584 | { \ |
585 | double __ctf_tmp_double = (double) (_type) (_src); \ | |
586 | memcpy(__stack_data, &__ctf_tmp_double, sizeof(double)); \ | |
587 | __stack_data += sizeof(double); \ | |
588 | } | |
1ddfd641 | 589 | |
4774c8f3 | 590 | #undef _ctf_array_encoded |
f3ec4cb5 MD |
591 | #define _ctf_array_encoded(_type, _item, _src, _byte_order, _length, \ |
592 | _encoding, _nowrite, _elem_type_base) \ | |
fa099471 MD |
593 | { \ |
594 | unsigned long __ctf_tmp_ulong = (unsigned long) (_length); \ | |
59034aab | 595 | const void *__ctf_tmp_ptr = (_src); \ |
fa099471 MD |
596 | memcpy(__stack_data, &__ctf_tmp_ulong, sizeof(unsigned long)); \ |
597 | __stack_data += sizeof(unsigned long); \ | |
b1239ad6 MD |
598 | memcpy(__stack_data, &__ctf_tmp_ptr, sizeof(void *)); \ |
599 | __stack_data += sizeof(void *); \ | |
fa099471 | 600 | } |
1ddfd641 | 601 | |
4774c8f3 | 602 | #undef _ctf_sequence_encoded |
48d660d1 | 603 | #define _ctf_sequence_encoded(_type, _item, _src, _byte_order, _length_type, \ |
f968510a | 604 | _src_length, _encoding, _nowrite, _elem_type_base) \ |
fa099471 MD |
605 | { \ |
606 | unsigned long __ctf_tmp_ulong = (unsigned long) (_src_length); \ | |
59034aab | 607 | const void *__ctf_tmp_ptr = (_src); \ |
fa099471 MD |
608 | memcpy(__stack_data, &__ctf_tmp_ulong, sizeof(unsigned long)); \ |
609 | __stack_data += sizeof(unsigned long); \ | |
b1239ad6 MD |
610 | memcpy(__stack_data, &__ctf_tmp_ptr, sizeof(void *)); \ |
611 | __stack_data += sizeof(void *); \ | |
fa099471 | 612 | } |
1ddfd641 | 613 | |
4774c8f3 | 614 | #undef _ctf_string |
180901e6 | 615 | #define _ctf_string(_item, _src, _nowrite) \ |
fa099471 | 616 | { \ |
24a39530 | 617 | const void *__ctf_tmp_ptr = \ |
ee0889a3 | 618 | ((_src) ? (_src) : LTTNG_UST__NULL_STRING); \ |
b1239ad6 MD |
619 | memcpy(__stack_data, &__ctf_tmp_ptr, sizeof(void *)); \ |
620 | __stack_data += sizeof(void *); \ | |
fa099471 | 621 | } |
1ddfd641 | 622 | |
5152f6df MJ |
623 | #undef _ctf_unused |
624 | #define _ctf_unused(_src) \ | |
625 | if (0) \ | |
626 | (void) (_src); | |
627 | ||
c785c634 MD |
628 | #undef _ctf_enum |
629 | #define _ctf_enum(_provider, _name, _type, _item, _src, _nowrite) \ | |
630 | _ctf_integer_ext(_type, _item, _src, BYTE_ORDER, 10, _nowrite) | |
631 | ||
cadfcbfc MJ |
632 | #undef LTTNG_UST_TP_ARGS |
633 | #define LTTNG_UST_TP_ARGS(...) __VA_ARGS__ | |
1ddfd641 | 634 | |
efa14d16 MJ |
635 | #undef LTTNG_UST_TP_FIELDS |
636 | #define LTTNG_UST_TP_FIELDS(...) __VA_ARGS__ | |
1ddfd641 | 637 | |
7f2f82c3 MJ |
638 | #undef LTTNG_UST__TRACEPOINT_EVENT_CLASS |
639 | #define LTTNG_UST__TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields) \ | |
1ddfd641 | 640 | static inline \ |
d37ecb3f | 641 | void __event_prepare_interpreter_stack__##_provider##___##_name(char *__stack_data,\ |
6eddcb06 | 642 | LTTNG_UST__TP_ARGS_DATA_PROTO(_args)) \ |
1ddfd641 | 643 | { \ |
5152f6df MJ |
644 | if (0) { \ |
645 | (void) __tp_data; /* don't warn if unused */ \ | |
646 | (void) __stack_data; /* don't warn if unused */ \ | |
647 | } \ | |
648 | \ | |
1ddfd641 MD |
649 | _fields \ |
650 | } | |
651 | ||
bb71a8ea | 652 | #include LTTNG_UST_TRACEPOINT_INCLUDE |
1ddfd641 | 653 | |
1c324e59 | 654 | /* |
df854e41 | 655 | * Stage 4 of tracepoint event generation. |
1c324e59 MD |
656 | * |
657 | * Create static inline function that calculates event payload alignment. | |
658 | */ | |
659 | ||
7f2f82c3 | 660 | /* Reset all macros within LTTNG_UST_TRACEPOINT_EVENT */ |
1c324e59 | 661 | #include <lttng/ust-tracepoint-event-reset.h> |
4774c8f3 | 662 | #include <lttng/ust-tracepoint-event-write.h> |
1c324e59 | 663 | |
4774c8f3 | 664 | #undef _ctf_integer_ext |
180901e6 | 665 | #define _ctf_integer_ext(_type, _item, _src, _byte_order, _base, _nowrite) \ |
5152f6df MJ |
666 | if (0) \ |
667 | (void) (_src); /* Unused */ \ | |
dc325c1d | 668 | __event_align = _tp_max_t(size_t, __event_align, lttng_ust_rb_alignof(_type)); |
1c324e59 | 669 | |
4774c8f3 | 670 | #undef _ctf_float |
180901e6 | 671 | #define _ctf_float(_type, _item, _src, _nowrite) \ |
5152f6df MJ |
672 | if (0) \ |
673 | (void) (_src); /* Unused */ \ | |
dc325c1d | 674 | __event_align = _tp_max_t(size_t, __event_align, lttng_ust_rb_alignof(_type)); |
1c324e59 | 675 | |
4774c8f3 | 676 | #undef _ctf_array_encoded |
f3ec4cb5 MD |
677 | #define _ctf_array_encoded(_type, _item, _src, _byte_order, _length, \ |
678 | _encoding, _nowrite, _elem_type_base) \ | |
5152f6df MJ |
679 | if (0) \ |
680 | (void) (_src); /* Unused */ \ | |
dc325c1d | 681 | __event_align = _tp_max_t(size_t, __event_align, lttng_ust_rb_alignof(_type)); |
1c324e59 | 682 | |
4774c8f3 | 683 | #undef _ctf_sequence_encoded |
48d660d1 | 684 | #define _ctf_sequence_encoded(_type, _item, _src, _byte_order, _length_type, \ |
f968510a | 685 | _src_length, _encoding, _nowrite, _elem_type_base) \ |
5152f6df MJ |
686 | if (0) \ |
687 | (void) (_src); /* Unused */ \ | |
688 | if (0) \ | |
689 | (void) (_src_length); /* Unused */ \ | |
dc325c1d MJ |
690 | __event_align = _tp_max_t(size_t, __event_align, lttng_ust_rb_alignof(_length_type)); \ |
691 | __event_align = _tp_max_t(size_t, __event_align, lttng_ust_rb_alignof(_type)); | |
1c324e59 | 692 | |
4774c8f3 | 693 | #undef _ctf_string |
5152f6df MJ |
694 | #define _ctf_string(_item, _src, _nowrite) \ |
695 | if (0) \ | |
696 | (void) (_src); /* Unused */ | |
697 | ||
698 | #undef _ctf_unused | |
699 | #define _ctf_unused(_src) \ | |
700 | if (0) \ | |
701 | (void) (_src); /* Unused */ | |
1c324e59 | 702 | |
c785c634 MD |
703 | #undef _ctf_enum |
704 | #define _ctf_enum(_provider, _name, _type, _item, _src, _nowrite) \ | |
705 | _ctf_integer_ext(_type, _item, _src, BYTE_ORDER, 10, _nowrite) | |
706 | ||
cadfcbfc MJ |
707 | #undef LTTNG_UST_TP_ARGS |
708 | #define LTTNG_UST_TP_ARGS(...) __VA_ARGS__ | |
1c324e59 | 709 | |
efa14d16 MJ |
710 | #undef LTTNG_UST_TP_FIELDS |
711 | #define LTTNG_UST_TP_FIELDS(...) __VA_ARGS__ | |
1c324e59 | 712 | |
7f2f82c3 MJ |
713 | #undef LTTNG_UST__TRACEPOINT_EVENT_CLASS |
714 | #define LTTNG_UST__TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields) \ | |
106ff4da | 715 | static inline \ |
6eddcb06 | 716 | size_t __event_get_align__##_provider##___##_name(LTTNG_UST__TP_ARGS_PROTO(_args)) \ |
106ff4da | 717 | lttng_ust_notrace; \ |
1c324e59 | 718 | static inline \ |
6eddcb06 | 719 | size_t __event_get_align__##_provider##___##_name(LTTNG_UST__TP_ARGS_PROTO(_args)) \ |
1c324e59 MD |
720 | { \ |
721 | size_t __event_align = 1; \ | |
722 | _fields \ | |
723 | return __event_align; \ | |
724 | } | |
725 | ||
bb71a8ea | 726 | #include LTTNG_UST_TRACEPOINT_INCLUDE |
1c324e59 MD |
727 | |
728 | ||
729 | /* | |
df854e41 | 730 | * Stage 5 of tracepoint event generation. |
1c324e59 MD |
731 | * |
732 | * Create the probe function. This function calls event size calculation | |
733 | * and writes event data into the buffer. | |
734 | */ | |
735 | ||
7f2f82c3 | 736 | /* Reset all macros within LTTNG_UST_TRACEPOINT_EVENT */ |
1c324e59 | 737 | #include <lttng/ust-tracepoint-event-reset.h> |
4774c8f3 | 738 | #include <lttng/ust-tracepoint-event-write.h> |
1c324e59 | 739 | |
4774c8f3 | 740 | #undef _ctf_integer_ext |
180901e6 | 741 | #define _ctf_integer_ext(_type, _item, _src, _byte_order, _base, _nowrite) \ |
1c324e59 MD |
742 | { \ |
743 | _type __tmp = (_src); \ | |
8936b6c0 | 744 | __chan->ops->event_write(&__ctx, &__tmp, sizeof(__tmp), lttng_ust_rb_alignof(__tmp));\ |
1c324e59 MD |
745 | } |
746 | ||
4774c8f3 | 747 | #undef _ctf_float |
180901e6 | 748 | #define _ctf_float(_type, _item, _src, _nowrite) \ |
1c324e59 MD |
749 | { \ |
750 | _type __tmp = (_src); \ | |
8936b6c0 | 751 | __chan->ops->event_write(&__ctx, &__tmp, sizeof(__tmp), lttng_ust_rb_alignof(__tmp));\ |
1c324e59 MD |
752 | } |
753 | ||
4774c8f3 | 754 | #undef _ctf_array_encoded |
f3ec4cb5 MD |
755 | #define _ctf_array_encoded(_type, _item, _src, _byte_order, _length, \ |
756 | _encoding, _nowrite, _elem_type_base) \ | |
27927814 | 757 | if (lttng_ust_string_encoding_##_encoding == lttng_ust_string_encoding_none) \ |
8936b6c0 | 758 | __chan->ops->event_write(&__ctx, _src, sizeof(_type) * (_length), lttng_ust_rb_alignof(_type)); \ |
27927814 | 759 | else \ |
879f9b0a | 760 | __chan->ops->event_pstrcpy_pad(&__ctx, (const char *) (_src), _length); \ |
1c324e59 | 761 | |
4774c8f3 | 762 | #undef _ctf_sequence_encoded |
48d660d1 | 763 | #define _ctf_sequence_encoded(_type, _item, _src, _byte_order, _length_type, \ |
f968510a | 764 | _src_length, _encoding, _nowrite, _elem_type_base) \ |
1c324e59 | 765 | { \ |
d71b57b9 | 766 | _length_type __tmpl = __stackvar.__dynamic_len[__dynamic_len_idx]; \ |
8936b6c0 | 767 | __chan->ops->event_write(&__ctx, &__tmpl, sizeof(_length_type), lttng_ust_rb_alignof(_length_type));\ |
1c324e59 | 768 | } \ |
27927814 MD |
769 | if (lttng_ust_string_encoding_##_encoding == lttng_ust_string_encoding_none) \ |
770 | __chan->ops->event_write(&__ctx, _src, \ | |
8936b6c0 | 771 | sizeof(_type) * __get_dynamic_len(dest), lttng_ust_rb_alignof(_type)); \ |
27927814 | 772 | else \ |
879f9b0a | 773 | __chan->ops->event_pstrcpy_pad(&__ctx, (const char *) (_src), __get_dynamic_len(dest)); \ |
1c324e59 | 774 | |
4774c8f3 | 775 | #undef _ctf_string |
8936b6c0 | 776 | #define _ctf_string(_item, _src, _nowrite) \ |
24a39530 PP |
777 | { \ |
778 | const char *__ctf_tmp_string = \ | |
ee0889a3 | 779 | ((_src) ? (_src) : LTTNG_UST__NULL_STRING); \ |
f9ec4a97 MD |
780 | __chan->ops->event_strcpy(&__ctx, __ctf_tmp_string, \ |
781 | __get_dynamic_len(dest)); \ | |
24a39530 PP |
782 | } |
783 | ||
5152f6df MJ |
784 | #undef _ctf_unused |
785 | #define _ctf_unused(_src) | |
1c324e59 | 786 | |
c785c634 MD |
787 | #undef _ctf_enum |
788 | #define _ctf_enum(_provider, _name, _type, _item, _src, _nowrite) \ | |
789 | _ctf_integer_ext(_type, _item, _src, BYTE_ORDER, 10, _nowrite) | |
790 | ||
1c324e59 MD |
791 | /* Beware: this get len actually consumes the len value */ |
792 | #undef __get_dynamic_len | |
d71b57b9 | 793 | #define __get_dynamic_len(field) __stackvar.__dynamic_len[__dynamic_len_idx++] |
1c324e59 | 794 | |
cadfcbfc MJ |
795 | #undef LTTNG_UST_TP_ARGS |
796 | #define LTTNG_UST_TP_ARGS(...) __VA_ARGS__ | |
1c324e59 | 797 | |
efa14d16 MJ |
798 | #undef LTTNG_UST_TP_FIELDS |
799 | #define LTTNG_UST_TP_FIELDS(...) __VA_ARGS__ | |
1c324e59 | 800 | |
95c25348 PW |
801 | /* |
802 | * For state dump, check that "session" argument (mandatory) matches the | |
803 | * session this event belongs to. Ensures that we write state dump data only | |
804 | * into the started session, not into all sessions. | |
805 | */ | |
806 | #undef _TP_SESSION_CHECK | |
807 | #ifdef TP_SESSION_CHECK | |
808 | #define _TP_SESSION_CHECK(session, csession) (session == csession) | |
809 | #else /* TP_SESSION_CHECK */ | |
810 | #define _TP_SESSION_CHECK(session, csession) 1 | |
811 | #endif /* TP_SESSION_CHECK */ | |
812 | ||
97904b41 MD |
813 | /* |
814 | * Use of __builtin_return_address(0) sometimes seems to cause stack | |
815 | * corruption on 32-bit PowerPC. Disable this feature on that | |
816 | * architecture for now by always using the NULL value for the ip | |
817 | * context. | |
818 | */ | |
5dadb547 MD |
819 | #undef _TP_IP_PARAM |
820 | #ifdef TP_IP_PARAM | |
e1d09f9e | 821 | #define _TP_IP_PARAM(x) (x) |
5dadb547 | 822 | #else /* TP_IP_PARAM */ |
97904b41 | 823 | |
2eba8e39 | 824 | #if defined(LTTNG_UST_ARCH_PPC) && !defined(LTTNG_UST_ARCH_PPC64) |
97904b41 | 825 | #define _TP_IP_PARAM(x) NULL |
2eba8e39 | 826 | #else |
e1d09f9e | 827 | #define _TP_IP_PARAM(x) __builtin_return_address(0) |
2eba8e39 | 828 | #endif |
97904b41 | 829 | |
5dadb547 MD |
830 | #endif /* TP_IP_PARAM */ |
831 | ||
1ddfd641 MD |
832 | /* |
833 | * Using twice size for filter stack data to hold size and pointer for | |
834 | * each field (worse case). For integers, max size required is 64-bit. | |
835 | * Same for double-precision floats. Those fit within | |
836 | * 2*sizeof(unsigned long) for all supported architectures. | |
61ce3223 | 837 | * Perform UNION (||) of filter runtime list. |
1ddfd641 | 838 | */ |
7f2f82c3 MJ |
839 | #undef LTTNG_UST__TRACEPOINT_EVENT_CLASS |
840 | #define LTTNG_UST__TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields) \ | |
106ff4da | 841 | static \ |
6eddcb06 | 842 | void __event_probe__##_provider##___##_name(LTTNG_UST__TP_ARGS_DATA_PROTO(_args)) \ |
106ff4da | 843 | lttng_ust_notrace; \ |
a8909ba5 | 844 | static \ |
6eddcb06 | 845 | void __event_probe__##_provider##___##_name(LTTNG_UST__TP_ARGS_DATA_PROTO(_args)) \ |
1c324e59 | 846 | { \ |
ba99fbe2 | 847 | struct lttng_ust_event_common *__event = (struct lttng_ust_event_common *) __tp_data; \ |
1c324e59 | 848 | size_t __dynamic_len_idx = 0; \ |
75026e9f | 849 | const size_t __num_fields = _TP_ARRAY_SIZE(__event_fields___##_provider##___##_name) - 1; \ |
d71b57b9 | 850 | union { \ |
75026e9f | 851 | size_t __dynamic_len[__num_fields]; \ |
ba99fbe2 | 852 | char __interpreter_stack_data[2 * sizeof(unsigned long) * __num_fields]; \ |
d71b57b9 | 853 | } __stackvar; \ |
1c324e59 | 854 | int __ret; \ |
a2e4d05e | 855 | bool __interpreter_stack_prepared = false; \ |
1c324e59 MD |
856 | \ |
857 | if (0) \ | |
858 | (void) __dynamic_len_idx; /* don't warn if unused */ \ | |
ba99fbe2 MD |
859 | switch (__event->type) { \ |
860 | case LTTNG_UST_EVENT_TYPE_RECORDER: \ | |
861 | { \ | |
862 | struct lttng_ust_event_recorder *__event_recorder = (struct lttng_ust_event_recorder *) __event->child; \ | |
e7bc0ef6 MD |
863 | struct lttng_ust_channel_buffer *__chan = __event_recorder->chan; \ |
864 | struct lttng_ust_channel_common *__chan_common = __chan->parent; \ | |
ba99fbe2 | 865 | \ |
e7bc0ef6 | 866 | if (!_TP_SESSION_CHECK(session, __chan_common->session)) \ |
ba99fbe2 | 867 | return; \ |
e7bc0ef6 | 868 | if (caa_unlikely(!CMM_ACCESS_ONCE(__chan_common->session->active))) \ |
ba99fbe2 | 869 | return; \ |
e7bc0ef6 | 870 | if (caa_unlikely(!CMM_ACCESS_ONCE(__chan_common->enabled))) \ |
ba99fbe2 MD |
871 | return; \ |
872 | break; \ | |
873 | } \ | |
874 | case LTTNG_UST_EVENT_TYPE_NOTIFIER: \ | |
875 | break; \ | |
876 | } \ | |
877 | if (caa_unlikely(!CMM_ACCESS_ONCE(__event->enabled))) \ | |
1c324e59 | 878 | return; \ |
1b436e01 MD |
879 | if (caa_unlikely(!TP_RCU_LINK_TEST())) \ |
880 | return; \ | |
a2e4d05e | 881 | if (caa_unlikely(CMM_ACCESS_ONCE(__event->eval_filter))) { \ |
ba99fbe2 | 882 | __event_prepare_interpreter_stack__##_provider##___##_name(__stackvar.__interpreter_stack_data, \ |
6eddcb06 | 883 | LTTNG_UST__TP_ARGS_DATA_VAR(_args)); \ |
a2e4d05e MD |
884 | __interpreter_stack_prepared = true; \ |
885 | if (caa_likely(__event->run_filter(__event, \ | |
886 | __stackvar.__interpreter_stack_data, NULL) != LTTNG_UST_EVENT_FILTER_ACCEPT)) \ | |
61ce3223 | 887 | return; \ |
1ddfd641 | 888 | } \ |
ba99fbe2 MD |
889 | switch (__event->type) { \ |
890 | case LTTNG_UST_EVENT_TYPE_RECORDER: \ | |
891 | { \ | |
892 | size_t __event_len, __event_align; \ | |
893 | struct lttng_ust_event_recorder *__event_recorder = (struct lttng_ust_event_recorder *) __event->child; \ | |
e7bc0ef6 | 894 | struct lttng_ust_channel_buffer *__chan = __event_recorder->chan; \ |
b5457df5 | 895 | struct lttng_ust_ring_buffer_ctx __ctx; \ |
ba99fbe2 MD |
896 | \ |
897 | __event_len = __event_get_size__##_provider##___##_name(__stackvar.__dynamic_len, \ | |
6eddcb06 MJ |
898 | LTTNG_UST__TP_ARGS_DATA_VAR(_args)); \ |
899 | __event_align = __event_get_align__##_provider##___##_name(LTTNG_UST__TP_ARGS_VAR(_args)); \ | |
b5457df5 | 900 | lttng_ust_ring_buffer_ctx_init(&__ctx, __event_recorder, __event_len, __event_align, \ |
8936b6c0 MD |
901 | _TP_IP_PARAM(TP_IP_PARAM)); \ |
902 | __ret = __chan->ops->event_reserve(&__ctx); \ | |
ba99fbe2 MD |
903 | if (__ret < 0) \ |
904 | return; \ | |
905 | _fields \ | |
906 | __chan->ops->event_commit(&__ctx); \ | |
907 | break; \ | |
908 | } \ | |
909 | case LTTNG_UST_EVENT_TYPE_NOTIFIER: \ | |
910 | { \ | |
911 | struct lttng_ust_event_notifier *__event_notifier = (struct lttng_ust_event_notifier *) __event->child; \ | |
a2e4d05e MD |
912 | struct lttng_ust_notification_ctx __notif_ctx; \ |
913 | \ | |
914 | __notif_ctx.struct_size = sizeof(struct lttng_ust_notification_ctx); \ | |
915 | __notif_ctx.eval_capture = CMM_ACCESS_ONCE(__event_notifier->eval_capture); \ | |
ba99fbe2 | 916 | \ |
a2e4d05e | 917 | if (caa_unlikely(!__interpreter_stack_prepared && __notif_ctx.eval_capture)) \ |
ba99fbe2 | 918 | __event_prepare_interpreter_stack__##_provider##___##_name(__stackvar.__interpreter_stack_data, \ |
6eddcb06 | 919 | LTTNG_UST__TP_ARGS_DATA_VAR(_args)); \ |
ba99fbe2 MD |
920 | \ |
921 | __event_notifier->notification_send(__event_notifier, \ | |
a2e4d05e MD |
922 | __stackvar.__interpreter_stack_data, \ |
923 | &__notif_ctx); \ | |
ba99fbe2 MD |
924 | break; \ |
925 | } \ | |
926 | } \ | |
1c324e59 MD |
927 | } |
928 | ||
bb71a8ea | 929 | #include LTTNG_UST_TRACEPOINT_INCLUDE |
1c324e59 MD |
930 | |
931 | #undef __get_dynamic_len | |
932 | ||
68755429 MD |
933 | /* |
934 | * Stage 5.1 of tracepoint event generation. | |
935 | * | |
936 | * Create probe signature | |
937 | */ | |
938 | ||
7f2f82c3 | 939 | /* Reset all macros within LTTNG_UST_TRACEPOINT_EVENT */ |
68755429 MD |
940 | #include <lttng/ust-tracepoint-event-reset.h> |
941 | ||
cadfcbfc MJ |
942 | #undef LTTNG_UST_TP_ARGS |
943 | #define LTTNG_UST_TP_ARGS(...) __VA_ARGS__ | |
9eb06182 MD |
944 | |
945 | #define _TP_EXTRACT_STRING2(...) #__VA_ARGS__ | |
68755429 | 946 | |
7f2f82c3 MJ |
947 | #undef LTTNG_UST__TRACEPOINT_EVENT_CLASS |
948 | #define LTTNG_UST__TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields) \ | |
ff82b7c1 | 949 | static const char __tp_event_signature___##_provider##___##_name[] = \ |
9eb06182 | 950 | _TP_EXTRACT_STRING2(_args); |
68755429 | 951 | |
bb71a8ea | 952 | #include LTTNG_UST_TRACEPOINT_INCLUDE |
68755429 | 953 | |
9eb06182 MD |
954 | #undef _TP_EXTRACT_STRING2 |
955 | ||
05ceaafd | 956 | /* |
882a56d7 | 957 | * Stage 6 of tracepoint event generation. |
1c324e59 | 958 | * |
df854e41 MD |
959 | * Tracepoint loglevel mapping definition generation. We generate a |
960 | * symbol for each mapping for a provider/event to ensure at most a 1 to | |
961 | * 1 mapping between events and loglevels. If the symbol is repeated, | |
962 | * the compiler will complain. | |
05ceaafd MD |
963 | */ |
964 | ||
7f2f82c3 | 965 | /* Reset all macros within LTTNG_UST_TRACEPOINT_EVENT */ |
05ceaafd MD |
966 | #include <lttng/ust-tracepoint-event-reset.h> |
967 | ||
4ea4f80e MD |
968 | /* |
969 | * Declare _loglevel___##__provider##___##__name as non-static, with | |
970 | * hidden visibility for c++ handling of weakref. We do a weakref to the | |
971 | * symbol in a later stage, which requires that the symbol is not | |
972 | * mangled. | |
973 | */ | |
974 | #ifdef __cplusplus | |
fc6d7bef | 975 | #define LTTNG_UST_TP_EXTERN_C extern "C" |
4ea4f80e | 976 | #else |
fc6d7bef | 977 | #define LTTNG_UST_TP_EXTERN_C |
4ea4f80e MD |
978 | #endif |
979 | ||
612e9ce4 MJ |
980 | #undef LTTNG_UST_TRACEPOINT_LOGLEVEL |
981 | #define LTTNG_UST_TRACEPOINT_LOGLEVEL(__provider, __name, __loglevel) \ | |
3d33ca1d MD |
982 | static const int _loglevel_value___##__provider##___##__name = __loglevel; \ |
983 | LTTNG_UST_TP_EXTERN_C const int * const _loglevel___##__provider##___##__name \ | |
984 | __attribute__((visibility("hidden"))) = \ | |
457a6b58 | 985 | &_loglevel_value___##__provider##___##__name; |
df854e41 | 986 | |
bb71a8ea | 987 | #include LTTNG_UST_TRACEPOINT_INCLUDE |
df854e41 | 988 | |
fc6d7bef | 989 | #undef LTTNG_UST_TP_EXTERN_C |
4ea4f80e | 990 | |
6ddc916d MD |
991 | /* |
992 | * Stage 6.1 of tracepoint event generation. | |
993 | * | |
994 | * Tracepoint UML URI info. | |
995 | */ | |
996 | ||
7f2f82c3 | 997 | /* Reset all macros within LTTNG_UST_TRACEPOINT_EVENT */ |
6ddc916d MD |
998 | #include <lttng/ust-tracepoint-event-reset.h> |
999 | ||
4ea4f80e MD |
1000 | /* |
1001 | * Declare _model_emf_uri___##__provider##___##__name as non-static, | |
1002 | * with hidden visibility for c++ handling of weakref. We do a weakref | |
1003 | * to the symbol in a later stage, which requires that the symbol is not | |
1004 | * mangled. | |
1005 | */ | |
1006 | #ifdef __cplusplus | |
fc6d7bef | 1007 | #define LTTNG_UST_TP_EXTERN_C extern "C" |
4ea4f80e | 1008 | #else |
fc6d7bef | 1009 | #define LTTNG_UST_TP_EXTERN_C |
4ea4f80e MD |
1010 | #endif |
1011 | ||
dbcc2f92 MJ |
1012 | #undef LTTNG_UST_TRACEPOINT_MODEL_EMF_URI |
1013 | #define LTTNG_UST_TRACEPOINT_MODEL_EMF_URI(__provider, __name, __uri) \ | |
3d33ca1d | 1014 | LTTNG_UST_TP_EXTERN_C const char * const _model_emf_uri___##__provider##___##__name \ |
082802f9 | 1015 | __attribute__((visibility("hidden"))) = __uri; \ |
6ddc916d | 1016 | |
bb71a8ea | 1017 | #include LTTNG_UST_TRACEPOINT_INCLUDE |
6ddc916d | 1018 | |
fc6d7bef | 1019 | #undef LTTNG_UST_TP_EXTERN_C |
4ea4f80e | 1020 | |
5b4c6da4 MD |
1021 | /* |
1022 | * Stage 7.0 of tracepoint event generation. | |
1023 | * | |
1024 | * Declare toplevel descriptor for the whole probe. | |
1025 | * Unlike C, C++ does not allow tentative definitions. Therefore, we | |
1026 | * need to explicitly declare the variable with "extern", using hidden | |
1027 | * visibility to keep this symbol from being exported to the global | |
1028 | * symbol table. | |
1029 | */ | |
1030 | ||
5b393d64 | 1031 | extern const struct lttng_ust_probe_desc LTTNG_UST__TP_COMBINE_TOKENS(__probe_desc___, LTTNG_UST_TRACEPOINT_PROVIDER) |
5b4c6da4 MD |
1032 | __attribute__((visibility("hidden"))); |
1033 | ||
df854e41 | 1034 | /* |
882a56d7 | 1035 | * Stage 7.1 of tracepoint event generation. |
df854e41 MD |
1036 | * |
1037 | * Create events description structures. We use a weakref because | |
3d33ca1d | 1038 | * loglevels are optional. If not declared, the event will point to |
df854e41 | 1039 | * a loglevel that contains NULL. |
3d33ca1d MD |
1040 | * |
1041 | * C++ requires that const objects have a user-declared default | |
1042 | * constructor. However, in both C++ and C, weakref cannot be | |
1043 | * initialized because it causes the weakref attribute to be ignored. | |
1044 | * Therefore, the loglevel and model_emf_uri pointers are not const | |
1045 | * to ensure C++ compilers default-initialize them. | |
df854e41 MD |
1046 | */ |
1047 | ||
7f2f82c3 | 1048 | /* Reset all macros within LTTNG_UST_TRACEPOINT_EVENT */ |
df854e41 MD |
1049 | #include <lttng/ust-tracepoint-event-reset.h> |
1050 | ||
7f2f82c3 MJ |
1051 | #undef LTTNG_UST__TRACEPOINT_EVENT_INSTANCE |
1052 | #define LTTNG_UST__TRACEPOINT_EVENT_INSTANCE(_provider, _template, _name, _args) \ | |
882a56d7 MD |
1053 | static const int * \ |
1054 | __ref_loglevel___##_provider##___##_name \ | |
1055 | __attribute__((weakref ("_loglevel___" #_provider "___" #_name))); \ | |
6ddc916d MD |
1056 | static const char * \ |
1057 | __ref_model_emf_uri___##_provider##___##_name \ | |
1058 | __attribute__((weakref ("_model_emf_uri___" #_provider "___" #_name)));\ | |
4e48b5d2 | 1059 | static const struct lttng_ust_event_desc __event_desc___##_provider##_##_name = { \ |
dc11f93f | 1060 | .struct_size = sizeof(struct lttng_ust_event_desc), \ |
5b4c6da4 MD |
1061 | .event_name = #_name, \ |
1062 | .probe_desc = &__probe_desc___##_provider, \ | |
dc11f93f | 1063 | .probe_callback = (void (*)(void)) &__event_probe__##_provider##___##_template, \ |
46d52200 | 1064 | .fields = __event_fields___##_provider##___##_template, \ |
1c80c909 | 1065 | .nr_fields = _TP_ARRAY_SIZE(__event_fields___##_provider##___##_template) - 1, \ |
882a56d7 | 1066 | .loglevel = &__ref_loglevel___##_provider##___##_name, \ |
68755429 | 1067 | .signature = __tp_event_signature___##_provider##___##_template, \ |
dc11f93f | 1068 | .model_emf_uri = &__ref_model_emf_uri___##_provider##___##_name, \ |
df854e41 MD |
1069 | }; |
1070 | ||
bb71a8ea | 1071 | #include LTTNG_UST_TRACEPOINT_INCLUDE |
05ceaafd | 1072 | |
df854e41 | 1073 | /* |
882a56d7 | 1074 | * Stage 7.2 of tracepoint event generation. |
df854e41 MD |
1075 | * |
1076 | * Create array of events. | |
1077 | */ | |
1078 | ||
7f2f82c3 | 1079 | /* Reset all macros within LTTNG_UST_TRACEPOINT_EVENT */ |
df854e41 MD |
1080 | #include <lttng/ust-tracepoint-event-reset.h> |
1081 | ||
7f2f82c3 MJ |
1082 | #undef LTTNG_UST__TRACEPOINT_EVENT_INSTANCE |
1083 | #define LTTNG_UST__TRACEPOINT_EVENT_INSTANCE(_provider, _template, _name, _args) \ | |
df854e41 MD |
1084 | &__event_desc___##_provider##_##_name, |
1085 | ||
5b393d64 | 1086 | static const struct lttng_ust_event_desc * const LTTNG_UST__TP_COMBINE_TOKENS(__event_desc___, LTTNG_UST_TRACEPOINT_PROVIDER)[] = { |
bb71a8ea | 1087 | #include LTTNG_UST_TRACEPOINT_INCLUDE |
1c80c909 | 1088 | NULL, /* Dummy, C99 forbids 0-len array. */ |
05ceaafd MD |
1089 | }; |
1090 | ||
df854e41 | 1091 | |
05ceaafd | 1092 | /* |
882a56d7 | 1093 | * Stage 8 of tracepoint event generation. |
05ceaafd MD |
1094 | * |
1095 | * Create a toplevel descriptor for the whole probe. | |
1096 | */ | |
1097 | ||
5b393d64 | 1098 | const struct lttng_ust_probe_desc LTTNG_UST__TP_COMBINE_TOKENS(__probe_desc___, LTTNG_UST_TRACEPOINT_PROVIDER) = { |
dc11f93f | 1099 | .struct_size = sizeof(struct lttng_ust_probe_desc), |
5b393d64 MJ |
1100 | .provider_name = __tp_stringify(LTTNG_UST_TRACEPOINT_PROVIDER), |
1101 | .event_desc = LTTNG_UST__TP_COMBINE_TOKENS(__event_desc___, LTTNG_UST_TRACEPOINT_PROVIDER), | |
1102 | .nr_events = _TP_ARRAY_SIZE(LTTNG_UST__TP_COMBINE_TOKENS(__event_desc___, LTTNG_UST_TRACEPOINT_PROVIDER)) - 1, | |
71d31690 MD |
1103 | .major = LTTNG_UST_PROVIDER_MAJOR, |
1104 | .minor = LTTNG_UST_PROVIDER_MINOR, | |
05ceaafd MD |
1105 | }; |
1106 | ||
5b393d64 MJ |
1107 | static int LTTNG_UST__TP_COMBINE_TOKENS(__probe_register_refcount___, LTTNG_UST_TRACEPOINT_PROVIDER); |
1108 | static struct lttng_ust_registered_probe *LTTNG_UST__TP_COMBINE_TOKENS(__lttng_ust_probe_register_cookie___, LTTNG_UST_TRACEPOINT_PROVIDER); | |
f0cc794d | 1109 | |
05ceaafd | 1110 | /* |
882a56d7 | 1111 | * Stage 9 of tracepoint event generation. |
05ceaafd | 1112 | * |
1c324e59 | 1113 | * Register/unregister probes at module load/unload. |
628e1d81 MD |
1114 | * |
1115 | * Generate the constructor as an externally visible symbol for use when | |
1116 | * linking the probe statically. | |
f0cc794d MD |
1117 | * |
1118 | * Register refcount is protected by libc dynamic loader mutex. | |
1c324e59 MD |
1119 | */ |
1120 | ||
7f2f82c3 | 1121 | /* Reset all macros within LTTNG_UST_TRACEPOINT_EVENT */ |
1c324e59 | 1122 | #include <lttng/ust-tracepoint-event-reset.h> |
465a0d04 | 1123 | static void |
5b393d64 | 1124 | LTTNG_UST__TP_COMBINE_TOKENS(__lttng_ust_events_init__, LTTNG_UST_TRACEPOINT_PROVIDER)(void) |
465a0d04 | 1125 | lttng_ust_notrace __attribute__((constructor)); |
a8909ba5 | 1126 | static void |
5b393d64 | 1127 | LTTNG_UST__TP_COMBINE_TOKENS(__lttng_ust_events_init__, LTTNG_UST_TRACEPOINT_PROVIDER)(void) |
1c324e59 | 1128 | { |
4e48b5d2 | 1129 | struct lttng_ust_registered_probe *reg_probe; |
1c324e59 | 1130 | |
aec5037b | 1131 | if (LTTNG_UST__TP_COMBINE_TOKENS(__probe_register_refcount___, |
5b393d64 | 1132 | LTTNG_UST_TRACEPOINT_PROVIDER)++) { |
f0cc794d MD |
1133 | return; |
1134 | } | |
e8bd1da7 | 1135 | /* |
5b393d64 | 1136 | * lttng_ust_tracepoint_provider_check_ ## LTTNG_UST_TRACEPOINT_PROVIDER() is a |
e8bd1da7 MD |
1137 | * static inline function that ensures every probe PROVIDER |
1138 | * argument match the provider within which they appear. It | |
1139 | * calls empty static inline functions, and therefore has no | |
1140 | * runtime effect. However, if it detects an error, a linker | |
1141 | * error will appear. | |
1142 | */ | |
5b393d64 MJ |
1143 | LTTNG_UST__TP_COMBINE_TOKENS(lttng_ust_tracepoint_provider_check_, LTTNG_UST_TRACEPOINT_PROVIDER)(); |
1144 | assert(!LTTNG_UST__TP_COMBINE_TOKENS(__lttng_ust_probe_register_cookie___, LTTNG_UST_TRACEPOINT_PROVIDER)); | |
1145 | reg_probe = lttng_ust_probe_register(<TNG_UST__TP_COMBINE_TOKENS(__probe_desc___, LTTNG_UST_TRACEPOINT_PROVIDER)); | |
4e48b5d2 MD |
1146 | if (!reg_probe) { |
1147 | fprintf(stderr, "LTTng-UST: Error while registering tracepoint probe.\n"); | |
7d381d6e MD |
1148 | abort(); |
1149 | } | |
5b393d64 | 1150 | LTTNG_UST__TP_COMBINE_TOKENS(__lttng_ust_probe_register_cookie___, LTTNG_UST_TRACEPOINT_PROVIDER) = reg_probe; |
1c324e59 MD |
1151 | } |
1152 | ||
c589eca2 | 1153 | static void |
5b393d64 | 1154 | LTTNG_UST__TP_COMBINE_TOKENS(__lttng_ust_events_exit__, LTTNG_UST_TRACEPOINT_PROVIDER)(void) |
c589eca2 | 1155 | lttng_ust_notrace __attribute__((destructor)); |
a8909ba5 | 1156 | static void |
5b393d64 | 1157 | LTTNG_UST__TP_COMBINE_TOKENS(__lttng_ust_events_exit__, LTTNG_UST_TRACEPOINT_PROVIDER)(void) |
1c324e59 | 1158 | { |
aec5037b | 1159 | if (--LTTNG_UST__TP_COMBINE_TOKENS(__probe_register_refcount___, |
5b393d64 | 1160 | LTTNG_UST_TRACEPOINT_PROVIDER)) { |
f0cc794d MD |
1161 | return; |
1162 | } | |
5b393d64 MJ |
1163 | lttng_ust_probe_unregister(LTTNG_UST__TP_COMBINE_TOKENS(__lttng_ust_probe_register_cookie___, LTTNG_UST_TRACEPOINT_PROVIDER)); |
1164 | LTTNG_UST__TP_COMBINE_TOKENS(__lttng_ust_probe_register_cookie___, LTTNG_UST_TRACEPOINT_PROVIDER) = NULL; | |
1c324e59 | 1165 | } |
628e1d81 | 1166 | |
5b393d64 | 1167 | int LTTNG_UST__TP_COMBINE_TOKENS(lttng_ust_tracepoint_provider_, LTTNG_UST_TRACEPOINT_PROVIDER) |
1d18d519 | 1168 | __attribute__((visibility("default"))); |