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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> |
f3b06377 MD |
20 | #include <lttng/ust-api-compat.h> |
21 | ||
22 | #if LTTNG_UST_COMPAT_API(0) | |
23 | #define TP_FIELDS LTTNG_UST_TP_FIELDS | |
24 | ||
25 | #define ctf_integer lttng_ust_field_integer | |
26 | #define ctf_integer_hex lttng_ust_field_integer_hex | |
27 | #define ctf_integer_network lttng_ust_field_integer_network | |
28 | #define ctf_integer_network_hex lttng_ust_field_integer_network_hex | |
29 | #define ctf_integer_nowrite lttng_ust_field_integer_nowrite | |
30 | ||
31 | #define ctf_float lttng_ust_field_float | |
32 | #define ctf_float_nowrite lttng_ust_field_float_nowrite | |
33 | ||
34 | #define ctf_array lttng_ust_field_array | |
35 | #define ctf_array_hex lttng_ust_field_array_hex | |
36 | #define ctf_array_network lttng_ust_field_array_network | |
37 | #define ctf_array_network_hex lttng_ust_field_array_network_hex | |
38 | #define ctf_array_text lttng_ust_field_array_text | |
39 | #define ctf_array_nowrite lttng_ust_field_array_nowrite | |
40 | #define ctf_array_nowrite_hex lttng_ust_field_array_nowrite_hex | |
41 | #define ctf_array_network_nowrite lttng_ust_field_array_network_nowrite | |
42 | #define ctf_array_network_nowrite_hex lttng_ust_field_array_network_nowrite_hex | |
43 | #define ctf_array_text_nowrite lttng_ust_field_array_text_nowrite | |
44 | ||
45 | #define ctf_sequence lttng_ust_field_sequence | |
46 | #define ctf_sequence_hex lttng_ust_field_sequence_hex | |
47 | #define ctf_sequence_network lttng_ust_field_sequence_network | |
48 | #define ctf_sequence_network_hex lttng_ust_field_sequence_network_hex | |
49 | #define ctf_sequence_text lttng_ust_field_sequence_text | |
50 | #define ctf_sequence_nowrite lttng_ust_field_sequence_nowrite | |
51 | #define ctf_sequence_nowrite_hex lttng_ust_field_sequence_nowrite_hex | |
52 | #define ctf_sequence_network_nowrite lttng_ust_field_sequence_network_nowrite | |
53 | #define ctf_sequence_network_nowrite_hex lttng_ust_field_sequence_network_nowrite_hex | |
54 | #define ctf_sequence_text_nowrite lttng_ust_field_sequence_text_nowrite | |
55 | ||
56 | #define ctf_string lttng_ust_field_string | |
57 | #define ctf_string_nowrite lttng_ust_field_string_nowrite | |
58 | ||
59 | #define ctf_unused lttng_ust_field_unused | |
60 | #define ctf_unused_nowrite lttng_ust_field_unused_nowrite | |
61 | ||
62 | #define ctf_enum lttng_ust_field_enum | |
63 | #define ctf_enum_nowrite lttng_ust_field_enum_nowrite | |
64 | #define ctf_enum_value lttng_ust_field_enum_value | |
65 | #define ctf_enum_range lttng_ust_field_enum_range | |
66 | #define ctf_enum_auto lttng_ust_field_enum_auto | |
67 | #endif /* #if LTTNG_UST_COMPAT_API(0) */ | |
1c324e59 | 68 | |
ee0889a3 | 69 | #define LTTNG_UST__NULL_STRING "(null)" |
24a39530 | 70 | |
1c324e59 | 71 | /* |
7f2f82c3 | 72 | * LTTNG_UST_TRACEPOINT_EVENT_CLASS declares a class of tracepoints receiving the |
1c324e59 MD |
73 | * same arguments and having the same field layout. |
74 | * | |
7f2f82c3 | 75 | * LTTNG_UST_TRACEPOINT_EVENT_INSTANCE declares an instance of a tracepoint, with |
1c324e59 MD |
76 | * its own provider and name. It refers to a class (template). |
77 | * | |
7f2f82c3 | 78 | * LTTNG_UST_TRACEPOINT_EVENT declared both a class and an instance and does a |
1c324e59 MD |
79 | * direct mapping from the instance to the class. |
80 | */ | |
81 | ||
7f2f82c3 MJ |
82 | #undef LTTNG_UST_TRACEPOINT_EVENT |
83 | #define LTTNG_UST_TRACEPOINT_EVENT(_provider, _name, _args, _fields) \ | |
84 | LTTNG_UST__TRACEPOINT_EVENT_CLASS(_provider, _name, \ | |
6eddcb06 MJ |
85 | LTTNG_UST__TP_PARAMS(_args), \ |
86 | LTTNG_UST__TP_PARAMS(_fields)) \ | |
71ca4083 | 87 | LTTNG_UST__TRACEPOINT_EVENT_INSTANCE(_provider, _name, _provider, _name, \ |
6eddcb06 | 88 | LTTNG_UST__TP_PARAMS(_args)) |
1c324e59 | 89 | |
7f2f82c3 MJ |
90 | #undef LTTNG_UST_TRACEPOINT_EVENT_CLASS |
91 | #define LTTNG_UST_TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields) \ | |
6eddcb06 | 92 | LTTNG_UST__TRACEPOINT_EVENT_CLASS(_provider, _name, LTTNG_UST__TP_PARAMS(_args), LTTNG_UST__TP_PARAMS(_fields)) |
f8021d08 | 93 | |
7f2f82c3 | 94 | #undef LTTNG_UST_TRACEPOINT_EVENT_INSTANCE |
71ca4083 MD |
95 | #define LTTNG_UST_TRACEPOINT_EVENT_INSTANCE(_template_provider, _template_name, _provider, _name, _args) \ |
96 | LTTNG_UST__TRACEPOINT_EVENT_INSTANCE(_template_provider, _template_name, _provider, _name, LTTNG_UST__TP_PARAMS(_args)) | |
f8021d08 | 97 | |
1c324e59 | 98 | /* Helpers */ |
ca6ed78d | 99 | #define LTTNG_UST__TP_ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0])) |
1c324e59 | 100 | |
1210ca90 | 101 | #define lttng_ust__tp_max_t(type, x, y) \ |
1c324e59 | 102 | ({ \ |
1210ca90 MJ |
103 | type lttng_ust__max1 = (x); \ |
104 | type lttng_ust__max2 = (y); \ | |
105 | lttng_ust__max1 > lttng_ust__max2 ? lttng_ust__max1: lttng_ust__max2; \ | |
1c324e59 MD |
106 | }) |
107 | ||
108 | /* | |
109 | * Stage 0 of tracepoint event generation. | |
110 | * | |
7f2f82c3 | 111 | * Check that each LTTNG_UST_TRACEPOINT_EVENT provider argument match the |
5b393d64 | 112 | * LTTNG_UST_TRACEPOINT_PROVIDER by creating dummy callbacks. |
1c324e59 MD |
113 | */ |
114 | ||
7f2f82c3 | 115 | /* Reset all macros within LTTNG_UST_TRACEPOINT_EVENT */ |
1c324e59 MD |
116 | #include <lttng/ust-tracepoint-event-reset.h> |
117 | ||
106ff4da | 118 | static inline |
5b393d64 | 119 | void LTTNG_UST__TP_COMBINE_TOKENS(lttng_ust_tracepoint_provider_mismatch_, LTTNG_UST_TRACEPOINT_PROVIDER)(void) |
106ff4da | 120 | lttng_ust_notrace; |
1c324e59 | 121 | static inline |
5b393d64 | 122 | void LTTNG_UST__TP_COMBINE_TOKENS(lttng_ust_tracepoint_provider_mismatch_, LTTNG_UST_TRACEPOINT_PROVIDER)(void) |
1c324e59 MD |
123 | { |
124 | } | |
125 | ||
7f2f82c3 MJ |
126 | #undef LTTNG_UST__TRACEPOINT_EVENT_CLASS |
127 | #define LTTNG_UST__TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields) \ | |
0274f7f2 | 128 | lttng_ust_tracepoint_provider_mismatch_##_provider(); |
1c324e59 | 129 | |
7f2f82c3 | 130 | #undef LTTNG_UST__TRACEPOINT_EVENT_INSTANCE |
71ca4083 | 131 | #define LTTNG_UST__TRACEPOINT_EVENT_INSTANCE(_template_provider, _template_name, _provider, _name, _args) \ |
0274f7f2 | 132 | lttng_ust_tracepoint_provider_mismatch_##_provider(); |
1c324e59 | 133 | |
106ff4da | 134 | static inline |
5b393d64 | 135 | void LTTNG_UST__TP_COMBINE_TOKENS(lttng_ust_tracepoint_provider_check_, LTTNG_UST_TRACEPOINT_PROVIDER)(void) |
106ff4da | 136 | lttng_ust_notrace; |
e8bd1da7 | 137 | static inline |
5b393d64 | 138 | void LTTNG_UST__TP_COMBINE_TOKENS(lttng_ust_tracepoint_provider_check_, LTTNG_UST_TRACEPOINT_PROVIDER)(void) |
1c324e59 | 139 | { |
bb71a8ea | 140 | #include LTTNG_UST_TRACEPOINT_INCLUDE |
1c324e59 MD |
141 | } |
142 | ||
f56cd1d5 MD |
143 | /* |
144 | * Stage 0.1 of tracepoint event generation. | |
145 | * | |
7f2f82c3 | 146 | * Check that each LTTNG_UST_TRACEPOINT_EVENT provider:name does not exceed the |
f56cd1d5 MD |
147 | * tracepoint name length limit. |
148 | */ | |
149 | ||
7f2f82c3 | 150 | /* Reset all macros within LTTNG_UST_TRACEPOINT_EVENT */ |
f56cd1d5 MD |
151 | #include <lttng/ust-tracepoint-event-reset.h> |
152 | ||
7f2f82c3 | 153 | #undef LTTNG_UST__TRACEPOINT_EVENT_INSTANCE |
71ca4083 | 154 | #define LTTNG_UST__TRACEPOINT_EVENT_INSTANCE(_template_provider, _template_name, _provider, _name, _args) \ |
81b16412 | 155 | lttng_ust_tracepoint_validate_name_len(_provider, _name); |
f56cd1d5 | 156 | |
bb71a8ea | 157 | #include LTTNG_UST_TRACEPOINT_INCLUDE |
f56cd1d5 | 158 | |
c75c0422 MD |
159 | /* |
160 | * Stage 0.2 of tracepoint event generation. | |
161 | * | |
162 | * Create dummy trace prototypes for each event class, and for each used | |
163 | * template. This will allow checking whether the prototypes from the | |
164 | * class and the instance using the class actually match. | |
165 | */ | |
166 | ||
7f2f82c3 | 167 | /* Reset all macros within LTTNG_UST_TRACEPOINT_EVENT */ |
c75c0422 MD |
168 | #include <lttng/ust-tracepoint-event-reset.h> |
169 | ||
cadfcbfc MJ |
170 | #undef LTTNG_UST_TP_ARGS |
171 | #define LTTNG_UST_TP_ARGS(...) __VA_ARGS__ | |
c75c0422 | 172 | |
7f2f82c3 | 173 | #undef LTTNG_UST__TRACEPOINT_EVENT_INSTANCE |
71ca4083 MD |
174 | #define LTTNG_UST__TRACEPOINT_EVENT_INSTANCE(_template_provider, _template_name, _provider, _name, _args) \ |
175 | void lttng_ust__event_template_proto___##_template_provider##___##_template_name(LTTNG_UST__TP_ARGS_DATA_PROTO(_args)); | |
c75c0422 | 176 | |
7f2f82c3 MJ |
177 | #undef LTTNG_UST__TRACEPOINT_EVENT_CLASS |
178 | #define LTTNG_UST__TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields) \ | |
bfcc2759 | 179 | void lttng_ust__event_template_proto___##_provider##___##_name(LTTNG_UST__TP_ARGS_DATA_PROTO(_args)); |
c75c0422 | 180 | |
bb71a8ea | 181 | #include LTTNG_UST_TRACEPOINT_INCLUDE |
c75c0422 | 182 | |
c785c634 MD |
183 | /* |
184 | * Stage 0.9 of tracepoint event generation | |
185 | * | |
186 | * Unfolding the enums | |
187 | */ | |
188 | #include <lttng/ust-tracepoint-event-reset.h> | |
189 | ||
190 | /* Enumeration entry (single value) */ | |
78684808 MJ |
191 | #undef lttng_ust_field_enum_value |
192 | #define lttng_ust_field_enum_value(_string, _value) \ | |
5defa774 | 193 | LTTNG_UST_COMPOUND_LITERAL(const struct lttng_ust_enum_entry, { \ |
891d6b55 | 194 | .struct_size = sizeof(struct lttng_ust_enum_entry), \ |
a6f80644 | 195 | .start = { \ |
eae3c729 | 196 | .value = lttng_ust_is_signed_type(__typeof__(_value)) ? \ |
a6f80644 | 197 | (long long) (_value) : (_value), \ |
eae3c729 | 198 | .signedness = lttng_ust_is_signed_type(__typeof__(_value)), \ |
a6f80644 MD |
199 | }, \ |
200 | .end = { \ | |
eae3c729 | 201 | .value = lttng_ust_is_signed_type(__typeof__(_value)) ? \ |
a6f80644 | 202 | (long long) (_value) : (_value), \ |
eae3c729 | 203 | .signedness = lttng_ust_is_signed_type(__typeof__(_value)), \ |
a6f80644 MD |
204 | }, \ |
205 | .string = (_string), \ | |
891d6b55 | 206 | }), |
c785c634 MD |
207 | |
208 | /* Enumeration entry (range) */ | |
78684808 MJ |
209 | #undef lttng_ust_field_enum_range |
210 | #define lttng_ust_field_enum_range(_string, _range_start, _range_end) \ | |
5defa774 | 211 | LTTNG_UST_COMPOUND_LITERAL(const struct lttng_ust_enum_entry, { \ |
891d6b55 | 212 | .struct_size = sizeof(struct lttng_ust_enum_entry), \ |
a6f80644 | 213 | .start = { \ |
eae3c729 | 214 | .value = lttng_ust_is_signed_type(__typeof__(_range_start)) ? \ |
a6f80644 | 215 | (long long) (_range_start) : (_range_start), \ |
eae3c729 | 216 | .signedness = lttng_ust_is_signed_type(__typeof__(_range_start)), \ |
a6f80644 MD |
217 | }, \ |
218 | .end = { \ | |
eae3c729 | 219 | .value = lttng_ust_is_signed_type(__typeof__(_range_end)) ? \ |
a6f80644 | 220 | (long long) (_range_end) : (_range_end), \ |
eae3c729 | 221 | .signedness = lttng_ust_is_signed_type(__typeof__(_range_end)), \ |
a6f80644 MD |
222 | }, \ |
223 | .string = (_string), \ | |
891d6b55 | 224 | }), |
c785c634 | 225 | |
3e762260 | 226 | /* Enumeration entry (automatic value; follows the rules of CTF) */ |
78684808 MJ |
227 | #undef lttng_ust_field_enum_auto |
228 | #define lttng_ust_field_enum_auto(_string) \ | |
5defa774 | 229 | LTTNG_UST_COMPOUND_LITERAL(const struct lttng_ust_enum_entry, { \ |
891d6b55 | 230 | .struct_size = sizeof(struct lttng_ust_enum_entry), \ |
3e762260 PP |
231 | .start = { \ |
232 | .value = -1ULL, \ | |
233 | .signedness = 0, \ | |
234 | }, \ | |
235 | .end = { \ | |
236 | .value = -1ULL, \ | |
237 | .signedness = 0, \ | |
238 | }, \ | |
239 | .string = (_string), \ | |
1a37a873 | 240 | .options = LTTNG_UST_ENUM_ENTRY_OPTION_IS_AUTO, \ |
891d6b55 | 241 | }), |
3e762260 | 242 | |
4849bc7a MJ |
243 | #undef LTTNG_UST_TP_ENUM_VALUES |
244 | #define LTTNG_UST_TP_ENUM_VALUES(...) \ | |
c785c634 MD |
245 | __VA_ARGS__ |
246 | ||
4849bc7a MJ |
247 | #if LTTNG_UST_COMPAT_API(0) |
248 | # undef TP_ENUM_VALUES | |
249 | # define TP_ENUM_VALUES LTTNG_UST_TP_ENUM_VALUES | |
250 | #endif /* #if LTTNG_UST_COMPAT_API(0) */ | |
251 | ||
2ebf164b MJ |
252 | #undef LTTNG_UST_TRACEPOINT_ENUM |
253 | #define LTTNG_UST_TRACEPOINT_ENUM(_provider, _name, _values) \ | |
3d33ca1d | 254 | const struct lttng_ust_enum_entry * const __enum_values__##_provider##_##_name[] = { \ |
c785c634 | 255 | _values \ |
78684808 | 256 | lttng_ust_field_enum_value("", 0) /* Dummy, 0-len array forbidden by C99. */ \ |
c785c634 | 257 | }; |
bb71a8ea | 258 | #include LTTNG_UST_TRACEPOINT_INCLUDE |
2df82195 FD |
259 | |
260 | /* | |
261 | * Stage 0.9.1 | |
262 | * Verifying array and sequence elements are of an integer type. | |
263 | */ | |
264 | ||
7f2f82c3 | 265 | /* Reset all macros within LTTNG_UST_TRACEPOINT_EVENT */ |
2df82195 FD |
266 | #include <lttng/ust-tracepoint-event-reset.h> |
267 | #include <lttng/ust-tracepoint-event-write.h> | |
268 | #include <lttng/ust-tracepoint-event-nowrite.h> | |
269 | ||
10937ee5 MJ |
270 | #undef lttng_ust__field_array_encoded |
271 | #define lttng_ust__field_array_encoded(_type, _item, _src, _byte_order, \ | |
2df82195 FD |
272 | _length, _encoding, _nowrite, \ |
273 | _elem_type_base) \ | |
10937ee5 | 274 | lttng_ust_field_array_element_type_is_supported(_type, _item); |
2df82195 | 275 | |
1d188af9 MJ |
276 | #undef lttng_ust__field_sequence_encoded |
277 | #define lttng_ust__field_sequence_encoded(_type, _item, _src, _byte_order, \ | |
2df82195 FD |
278 | _length_type, _src_length, _encoding, _nowrite, \ |
279 | _elem_type_base) \ | |
10937ee5 | 280 | lttng_ust_field_array_element_type_is_supported(_type, _item); |
2df82195 | 281 | |
efa14d16 MJ |
282 | #undef LTTNG_UST_TP_FIELDS |
283 | #define LTTNG_UST_TP_FIELDS(...) __VA_ARGS__ /* Only one used in this phase */ | |
2df82195 | 284 | |
7f2f82c3 MJ |
285 | #undef LTTNG_UST__TRACEPOINT_EVENT_CLASS |
286 | #define LTTNG_UST__TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields) \ | |
2df82195 | 287 | _fields |
c785c634 | 288 | |
bb71a8ea | 289 | #include LTTNG_UST_TRACEPOINT_INCLUDE |
c785c634 | 290 | |
71ca4083 MD |
291 | /* |
292 | * Stage 0.9.2 of tracepoint event generation. | |
293 | * | |
294 | * Create probe signature | |
295 | */ | |
296 | ||
297 | /* Reset all macros within LTTNG_UST_TRACEPOINT_EVENT */ | |
298 | #include <lttng/ust-tracepoint-event-reset.h> | |
299 | ||
300 | #undef LTTNG_UST_TP_ARGS | |
301 | #define LTTNG_UST_TP_ARGS(...) __VA_ARGS__ | |
302 | ||
303 | #define LTTNG_UST__TP_EXTRACT_STRING2(...) #__VA_ARGS__ | |
304 | ||
305 | #undef LTTNG_UST__TRACEPOINT_EVENT_CLASS | |
306 | #define LTTNG_UST__TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields) \ | |
307 | static const char __tp_event_signature___##_provider##___##_name[] = \ | |
308 | LTTNG_UST__TP_EXTRACT_STRING2(_args); | |
309 | ||
310 | #include LTTNG_UST_TRACEPOINT_INCLUDE | |
311 | ||
312 | #undef LTTNG_UST__TP_EXTRACT_STRING2 | |
313 | ||
1c324e59 MD |
314 | /* |
315 | * Stage 1 of tracepoint event generation. | |
316 | * | |
71ca4083 MD |
317 | * Create probe callback prototypes. |
318 | */ | |
319 | ||
320 | /* Reset all macros within LTTNG_UST_TRACEPOINT_EVENT */ | |
321 | #include <lttng/ust-tracepoint-event-reset.h> | |
322 | ||
323 | #undef LTTNG_UST_TP_ARGS | |
324 | #define LTTNG_UST_TP_ARGS(...) __VA_ARGS__ | |
325 | ||
326 | #undef LTTNG_UST__TRACEPOINT_EVENT_CLASS | |
327 | #define LTTNG_UST__TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields) \ | |
328 | static void lttng_ust__event_probe__##_provider##___##_name(LTTNG_UST__TP_ARGS_DATA_PROTO(_args)); | |
329 | ||
330 | #include LTTNG_UST_TRACEPOINT_INCLUDE | |
331 | ||
dba770e7 MD |
332 | /* |
333 | * Stage 1.1 of tracepoint event generation. | |
334 | * | |
335 | * Declare toplevel descriptor for the whole probe. | |
336 | * Unlike C, C++ does not allow tentative definitions. Therefore, we | |
337 | * need to explicitly declare the variable with "extern", using hidden | |
338 | * visibility to keep this symbol from being exported to the global | |
339 | * symbol table. | |
340 | */ | |
341 | ||
342 | extern const struct lttng_ust_probe_desc LTTNG_UST__TP_COMBINE_TOKENS(lttng_ust__probe_desc___, LTTNG_UST_TRACEPOINT_PROVIDER) | |
343 | __attribute__((visibility("hidden"))); | |
344 | ||
71ca4083 MD |
345 | /* |
346 | * Stage 2 of tracepoint event generation. | |
347 | * | |
1c324e59 MD |
348 | * Create event field type metadata section. |
349 | * Each event produce an array of fields. | |
350 | */ | |
351 | ||
7f2f82c3 | 352 | /* Reset all macros within LTTNG_UST_TRACEPOINT_EVENT */ |
1c324e59 | 353 | #include <lttng/ust-tracepoint-event-reset.h> |
4774c8f3 MD |
354 | #include <lttng/ust-tracepoint-event-write.h> |
355 | #include <lttng/ust-tracepoint-event-nowrite.h> | |
1c324e59 | 356 | |
b4064f28 MJ |
357 | #undef lttng_ust__field_integer_ext |
358 | #define lttng_ust__field_integer_ext(_type, _item, _src, _byte_order, _base, _nowrite) \ | |
5defa774 | 359 | LTTNG_UST_COMPOUND_LITERAL(const struct lttng_ust_event_field, { \ |
25cff019 MD |
360 | .struct_size = sizeof(struct lttng_ust_event_field), \ |
361 | .name = #_item, \ | |
a084756d | 362 | .type = lttng_ust_type_integer_define(_type, _byte_order, _base), \ |
25cff019 MD |
363 | .nowrite = _nowrite, \ |
364 | .nofilter = 0, \ | |
365 | }), | |
1c324e59 | 366 | |
891226fc MJ |
367 | #undef lttng_ust__field_float |
368 | #define lttng_ust__field_float(_type, _item, _src, _nowrite) \ | |
5defa774 | 369 | LTTNG_UST_COMPOUND_LITERAL(const struct lttng_ust_event_field, { \ |
25cff019 MD |
370 | .struct_size = sizeof(struct lttng_ust_event_field), \ |
371 | .name = #_item, \ | |
a084756d | 372 | .type = lttng_ust_type_float_define(_type), \ |
25cff019 MD |
373 | .nowrite = _nowrite, \ |
374 | .nofilter = 0, \ | |
375 | }), | |
1c324e59 | 376 | |
10937ee5 MJ |
377 | #undef lttng_ust__field_array_encoded |
378 | #define lttng_ust__field_array_encoded(_type, _item, _src, _byte_order, \ | |
f3ec4cb5 MD |
379 | _length, _encoding, _nowrite, \ |
380 | _elem_type_base) \ | |
5defa774 | 381 | LTTNG_UST_COMPOUND_LITERAL(const struct lttng_ust_event_field, { \ |
25cff019 MD |
382 | .struct_size = sizeof(struct lttng_ust_event_field), \ |
383 | .name = #_item, \ | |
5defa774 | 384 | .type = (const struct lttng_ust_type_common *) LTTNG_UST_COMPOUND_LITERAL(const struct lttng_ust_type_array, { \ |
a084756d MD |
385 | .parent = { \ |
386 | .type = lttng_ust_type_array, \ | |
387 | }, \ | |
388 | .struct_size = sizeof(struct lttng_ust_type_array), \ | |
389 | .elem_type = lttng_ust_type_integer_define(_type, _byte_order, _elem_type_base), \ | |
390 | .length = _length, \ | |
391 | .alignment = 0, \ | |
392 | .encoding = lttng_ust_string_encoding_##_encoding, \ | |
393 | }), \ | |
25cff019 MD |
394 | .nowrite = _nowrite, \ |
395 | .nofilter = 0, \ | |
396 | }), | |
1c324e59 | 397 | |
1d188af9 MJ |
398 | #undef lttng_ust__field_sequence_encoded |
399 | #define lttng_ust__field_sequence_encoded(_type, _item, _src, _byte_order, \ | |
f968510a PP |
400 | _length_type, _src_length, _encoding, _nowrite, \ |
401 | _elem_type_base) \ | |
5defa774 | 402 | LTTNG_UST_COMPOUND_LITERAL(const struct lttng_ust_event_field, { \ |
25cff019 MD |
403 | .struct_size = sizeof(struct lttng_ust_event_field), \ |
404 | .name = "_" #_item "_length", \ | |
baa8acf3 | 405 | .type = lttng_ust_type_integer_define(_length_type, LTTNG_UST_BYTE_ORDER, 10), \ |
25cff019 MD |
406 | .nowrite = _nowrite, \ |
407 | .nofilter = 1, \ | |
408 | }), \ | |
5defa774 | 409 | LTTNG_UST_COMPOUND_LITERAL(const struct lttng_ust_event_field, { \ |
25cff019 MD |
410 | .struct_size = sizeof(struct lttng_ust_event_field), \ |
411 | .name = #_item, \ | |
5defa774 | 412 | .type = (const struct lttng_ust_type_common *) LTTNG_UST_COMPOUND_LITERAL(const struct lttng_ust_type_sequence, { \ |
a084756d MD |
413 | .parent = { \ |
414 | .type = lttng_ust_type_sequence, \ | |
1c324e59 | 415 | }, \ |
a084756d | 416 | .struct_size = sizeof(struct lttng_ust_type_sequence), \ |
28db0827 | 417 | .length_name = NULL, /* Use previous field. */ \ |
a084756d MD |
418 | .elem_type = lttng_ust_type_integer_define(_type, _byte_order, _elem_type_base), \ |
419 | .alignment = 0, \ | |
420 | .encoding = lttng_ust_string_encoding_##_encoding, \ | |
421 | }), \ | |
25cff019 MD |
422 | .nowrite = _nowrite, \ |
423 | .nofilter = 0, \ | |
424 | }), | |
1c324e59 | 425 | |
3202f63a MJ |
426 | #undef lttng_ust__field_string |
427 | #define lttng_ust__field_string(_item, _src, _nowrite) \ | |
5defa774 | 428 | LTTNG_UST_COMPOUND_LITERAL(const struct lttng_ust_event_field, { \ |
25cff019 MD |
429 | .struct_size = sizeof(struct lttng_ust_event_field), \ |
430 | .name = #_item, \ | |
5defa774 | 431 | .type = (const struct lttng_ust_type_common *) LTTNG_UST_COMPOUND_LITERAL(const struct lttng_ust_type_string, { \ |
a084756d MD |
432 | .parent = { \ |
433 | .type = lttng_ust_type_string, \ | |
46d52200 | 434 | }, \ |
a084756d MD |
435 | .struct_size = sizeof(struct lttng_ust_type_string), \ |
436 | .encoding = lttng_ust_string_encoding_UTF8, \ | |
437 | }), \ | |
25cff019 MD |
438 | .nowrite = _nowrite, \ |
439 | .nofilter = 0, \ | |
440 | }), | |
1c324e59 | 441 | |
ddde62ca MJ |
442 | #undef lttng_ust__field_unused |
443 | #define lttng_ust__field_unused(_src) | |
5152f6df | 444 | |
78684808 MJ |
445 | #undef lttng_ust__field_enum |
446 | #define lttng_ust__field_enum(_provider, _name, _type, _item, _src, _nowrite) \ | |
5defa774 | 447 | LTTNG_UST_COMPOUND_LITERAL(const struct lttng_ust_event_field, { \ |
25cff019 | 448 | .struct_size = sizeof(struct lttng_ust_event_field), \ |
c785c634 | 449 | .name = #_item, \ |
5defa774 | 450 | .type = (const struct lttng_ust_type_common *) LTTNG_UST_COMPOUND_LITERAL(const struct lttng_ust_type_enum, { \ |
a084756d MD |
451 | .parent = { \ |
452 | .type = lttng_ust_type_enum, \ | |
c785c634 | 453 | }, \ |
a084756d MD |
454 | .struct_size = sizeof(struct lttng_ust_type_enum), \ |
455 | .desc = &__enum_##_provider##_##_name, \ | |
baa8acf3 | 456 | .container_type = lttng_ust_type_integer_define(_type, LTTNG_UST_BYTE_ORDER, 10), \ |
a084756d | 457 | }), \ |
c785c634 | 458 | .nowrite = _nowrite, \ |
25cff019 MD |
459 | .nofilter = 0, \ |
460 | }), | |
c785c634 | 461 | |
efa14d16 MJ |
462 | #undef LTTNG_UST_TP_FIELDS |
463 | #define LTTNG_UST_TP_FIELDS(...) __VA_ARGS__ /* Only one used in this phase */ | |
1c324e59 | 464 | |
7f2f82c3 MJ |
465 | #undef LTTNG_UST__TRACEPOINT_EVENT_CLASS |
466 | #define LTTNG_UST__TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields) \ | |
bfcc2759 | 467 | static const struct lttng_ust_event_field * const lttng_ust__event_fields___##_provider##___##_name[] = { \ |
1c324e59 | 468 | _fields \ |
b4064f28 | 469 | lttng_ust_field_integer(int, dummy, 0) /* Dummy, C99 forbids 0-len array. */ \ |
71ca4083 MD |
470 | }; \ |
471 | static const struct lttng_ust_tracepoint_class lttng_ust__event_class___##_provider##___##_name = { \ | |
472 | .struct_size = sizeof(struct lttng_ust_tracepoint_class), \ | |
473 | .fields = lttng_ust__event_fields___##_provider##___##_name, \ | |
474 | .nr_fields = LTTNG_UST__TP_ARRAY_SIZE(lttng_ust__event_fields___##_provider##___##_name) - 1, \ | |
475 | .probe_callback = (void (*)(void)) <tng_ust__event_probe__##_provider##___##_name, \ | |
476 | .signature = __tp_event_signature___##_provider##___##_name, \ | |
dba770e7 | 477 | .probe_desc = <tng_ust__probe_desc___##_provider, \ |
1c324e59 MD |
478 | }; |
479 | ||
2ebf164b MJ |
480 | #undef LTTNG_UST_TRACEPOINT_ENUM |
481 | #define LTTNG_UST_TRACEPOINT_ENUM(_provider, _name, _values) \ | |
4e48b5d2 | 482 | static const struct lttng_ust_enum_desc __enum_##_provider##_##_name = { \ |
a084756d | 483 | .struct_size = sizeof(struct lttng_ust_enum_desc), \ |
c785c634 MD |
484 | .name = #_provider "_" #_name, \ |
485 | .entries = __enum_values__##_provider##_##_name, \ | |
ca6ed78d | 486 | .nr_entries = LTTNG_UST__TP_ARRAY_SIZE(__enum_values__##_provider##_##_name) - 1, \ |
dba770e7 | 487 | .probe_desc = <tng_ust__probe_desc___##_provider, \ |
c785c634 MD |
488 | }; |
489 | ||
bb71a8ea | 490 | #include LTTNG_UST_TRACEPOINT_INCLUDE |
1c324e59 | 491 | |
1c324e59 | 492 | /* |
c785c634 | 493 | * Stage 3.0 of tracepoint event generation. |
1c324e59 | 494 | * |
1c324e59 MD |
495 | * Create static inline function that calculates event size. |
496 | */ | |
497 | ||
7f2f82c3 | 498 | /* Reset all macros within LTTNG_UST_TRACEPOINT_EVENT */ |
1c324e59 | 499 | #include <lttng/ust-tracepoint-event-reset.h> |
4774c8f3 | 500 | #include <lttng/ust-tracepoint-event-write.h> |
1c324e59 | 501 | |
b4064f28 MJ |
502 | #undef lttng_ust__field_integer_ext |
503 | #define lttng_ust__field_integer_ext(_type, _item, _src, _byte_order, _base, _nowrite) \ | |
5152f6df MJ |
504 | if (0) \ |
505 | (void) (_src); /* Unused */ \ | |
b5457df5 | 506 | __event_len += lttng_ust_ring_buffer_align(__event_len, lttng_ust_rb_alignof(_type)); \ |
1c324e59 MD |
507 | __event_len += sizeof(_type); |
508 | ||
891226fc MJ |
509 | #undef lttng_ust__field_float |
510 | #define lttng_ust__field_float(_type, _item, _src, _nowrite) \ | |
5152f6df MJ |
511 | if (0) \ |
512 | (void) (_src); /* Unused */ \ | |
b5457df5 | 513 | __event_len += lttng_ust_ring_buffer_align(__event_len, lttng_ust_rb_alignof(_type)); \ |
1c324e59 MD |
514 | __event_len += sizeof(_type); |
515 | ||
10937ee5 MJ |
516 | #undef lttng_ust__field_array_encoded |
517 | #define lttng_ust__field_array_encoded(_type, _item, _src, _byte_order, _length, _encoding, \ | |
f3ec4cb5 | 518 | _nowrite, _elem_type_base) \ |
5152f6df MJ |
519 | if (0) \ |
520 | (void) (_src); /* Unused */ \ | |
b5457df5 | 521 | __event_len += lttng_ust_ring_buffer_align(__event_len, lttng_ust_rb_alignof(_type)); \ |
1c324e59 MD |
522 | __event_len += sizeof(_type) * (_length); |
523 | ||
1d188af9 MJ |
524 | #undef lttng_ust__field_sequence_encoded |
525 | #define lttng_ust__field_sequence_encoded(_type, _item, _src, _byte_order, _length_type, \ | |
f968510a | 526 | _src_length, _encoding, _nowrite, _elem_type_base) \ |
5152f6df MJ |
527 | if (0) \ |
528 | (void) (_src); /* Unused */ \ | |
b5457df5 | 529 | __event_len += lttng_ust_ring_buffer_align(__event_len, lttng_ust_rb_alignof(_length_type)); \ |
1c324e59 | 530 | __event_len += sizeof(_length_type); \ |
b5457df5 | 531 | __event_len += lttng_ust_ring_buffer_align(__event_len, lttng_ust_rb_alignof(_type)); \ |
1c324e59 MD |
532 | __dynamic_len[__dynamic_len_idx] = (_src_length); \ |
533 | __event_len += sizeof(_type) * __dynamic_len[__dynamic_len_idx]; \ | |
534 | __dynamic_len_idx++; | |
535 | ||
3202f63a MJ |
536 | #undef lttng_ust__field_string |
537 | #define lttng_ust__field_string(_item, _src, _nowrite) \ | |
24a39530 | 538 | __event_len += __dynamic_len[__dynamic_len_idx++] = \ |
ee0889a3 | 539 | strlen((_src) ? (_src) : LTTNG_UST__NULL_STRING) + 1; |
1c324e59 | 540 | |
ddde62ca MJ |
541 | #undef lttng_ust__field_unused |
542 | #define lttng_ust__field_unused(_src) \ | |
5152f6df MJ |
543 | if (0) \ |
544 | (void) (_src); /* Unused */ | |
545 | ||
78684808 MJ |
546 | #undef lttng_ust__field_enum |
547 | #define lttng_ust__field_enum(_provider, _name, _type, _item, _src, _nowrite) \ | |
b4064f28 | 548 | lttng_ust__field_integer_ext(_type, _item, _src, LTTNG_UST_BYTE_ORDER, 10, _nowrite) |
c785c634 | 549 | |
cadfcbfc MJ |
550 | #undef LTTNG_UST_TP_ARGS |
551 | #define LTTNG_UST_TP_ARGS(...) __VA_ARGS__ | |
1c324e59 | 552 | |
efa14d16 MJ |
553 | #undef LTTNG_UST_TP_FIELDS |
554 | #define LTTNG_UST_TP_FIELDS(...) __VA_ARGS__ | |
1c324e59 | 555 | |
7f2f82c3 MJ |
556 | #undef LTTNG_UST__TRACEPOINT_EVENT_CLASS |
557 | #define LTTNG_UST__TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields) \ | |
106ff4da | 558 | static inline \ |
bfcc2759 | 559 | size_t lttng_ust__event_get_size__##_provider##___##_name(size_t *__dynamic_len, LTTNG_UST__TP_ARGS_DATA_PROTO(_args)) \ |
106ff4da | 560 | lttng_ust_notrace; \ |
a8909ba5 | 561 | static inline \ |
bfcc2759 | 562 | size_t lttng_ust__event_get_size__##_provider##___##_name( \ |
5152f6df | 563 | size_t *__dynamic_len __attribute__((__unused__)), \ |
6eddcb06 | 564 | LTTNG_UST__TP_ARGS_DATA_PROTO(_args)) \ |
1c324e59 MD |
565 | { \ |
566 | size_t __event_len = 0; \ | |
5152f6df | 567 | unsigned int __dynamic_len_idx __attribute__((__unused__)) = 0; \ |
1c324e59 MD |
568 | \ |
569 | if (0) \ | |
5152f6df MJ |
570 | (void) __tp_data; /* don't warn if unused */ \ |
571 | \ | |
1c324e59 MD |
572 | _fields \ |
573 | return __event_len; \ | |
574 | } | |
575 | ||
bb71a8ea | 576 | #include LTTNG_UST_TRACEPOINT_INCLUDE |
1c324e59 | 577 | |
1ddfd641 MD |
578 | /* |
579 | * Stage 3.1 of tracepoint event generation. | |
580 | * | |
581 | * Create static inline function that layout the filter stack data. | |
4774c8f3 | 582 | * We make both write and nowrite data available to the filter. |
1ddfd641 MD |
583 | */ |
584 | ||
7f2f82c3 | 585 | /* Reset all macros within LTTNG_UST_TRACEPOINT_EVENT */ |
1ddfd641 | 586 | #include <lttng/ust-tracepoint-event-reset.h> |
4774c8f3 MD |
587 | #include <lttng/ust-tracepoint-event-write.h> |
588 | #include <lttng/ust-tracepoint-event-nowrite.h> | |
1ddfd641 | 589 | |
b4064f28 MJ |
590 | #undef lttng_ust__field_integer_ext |
591 | #define lttng_ust__field_integer_ext(_type, _item, _src, _byte_order, _base, _nowrite) \ | |
eae3c729 | 592 | if (lttng_ust_is_signed_type(_type)) { \ |
3ebeea0d MD |
593 | int64_t __ctf_tmp_int64; \ |
594 | switch (sizeof(_type)) { \ | |
595 | case 1: \ | |
596 | { \ | |
597 | union { _type t; int8_t v; } __tmp = { (_type) (_src) }; \ | |
598 | __ctf_tmp_int64 = (int64_t) __tmp.v; \ | |
599 | break; \ | |
600 | } \ | |
601 | case 2: \ | |
602 | { \ | |
603 | union { _type t; int16_t v; } __tmp = { (_type) (_src) }; \ | |
baa8acf3 MJ |
604 | if (_byte_order != LTTNG_UST_BYTE_ORDER) \ |
605 | __tmp.v = lttng_ust_bswap_16(__tmp.v); \ | |
3ebeea0d MD |
606 | __ctf_tmp_int64 = (int64_t) __tmp.v; \ |
607 | break; \ | |
608 | } \ | |
609 | case 4: \ | |
610 | { \ | |
611 | union { _type t; int32_t v; } __tmp = { (_type) (_src) }; \ | |
baa8acf3 MJ |
612 | if (_byte_order != LTTNG_UST_BYTE_ORDER) \ |
613 | __tmp.v = lttng_ust_bswap_32(__tmp.v); \ | |
3ebeea0d MD |
614 | __ctf_tmp_int64 = (int64_t) __tmp.v; \ |
615 | break; \ | |
616 | } \ | |
617 | case 8: \ | |
618 | { \ | |
619 | union { _type t; int64_t v; } __tmp = { (_type) (_src) }; \ | |
baa8acf3 MJ |
620 | if (_byte_order != LTTNG_UST_BYTE_ORDER) \ |
621 | __tmp.v = lttng_ust_bswap_64(__tmp.v); \ | |
3ebeea0d MD |
622 | __ctf_tmp_int64 = (int64_t) __tmp.v; \ |
623 | break; \ | |
624 | } \ | |
625 | default: \ | |
626 | abort(); \ | |
627 | }; \ | |
fa099471 MD |
628 | memcpy(__stack_data, &__ctf_tmp_int64, sizeof(int64_t)); \ |
629 | } else { \ | |
3ebeea0d MD |
630 | uint64_t __ctf_tmp_uint64; \ |
631 | switch (sizeof(_type)) { \ | |
632 | case 1: \ | |
633 | { \ | |
634 | union { _type t; uint8_t v; } __tmp = { (_type) (_src) }; \ | |
635 | __ctf_tmp_uint64 = (uint64_t) __tmp.v; \ | |
636 | break; \ | |
637 | } \ | |
638 | case 2: \ | |
639 | { \ | |
640 | union { _type t; uint16_t v; } __tmp = { (_type) (_src) }; \ | |
baa8acf3 MJ |
641 | if (_byte_order != LTTNG_UST_BYTE_ORDER) \ |
642 | __tmp.v = lttng_ust_bswap_16(__tmp.v); \ | |
3ebeea0d MD |
643 | __ctf_tmp_uint64 = (uint64_t) __tmp.v; \ |
644 | break; \ | |
645 | } \ | |
646 | case 4: \ | |
647 | { \ | |
648 | union { _type t; uint32_t v; } __tmp = { (_type) (_src) }; \ | |
baa8acf3 MJ |
649 | if (_byte_order != LTTNG_UST_BYTE_ORDER) \ |
650 | __tmp.v = lttng_ust_bswap_32(__tmp.v); \ | |
3ebeea0d MD |
651 | __ctf_tmp_uint64 = (uint64_t) __tmp.v; \ |
652 | break; \ | |
653 | } \ | |
654 | case 8: \ | |
655 | { \ | |
656 | union { _type t; uint64_t v; } __tmp = { (_type) (_src) }; \ | |
baa8acf3 MJ |
657 | if (_byte_order != LTTNG_UST_BYTE_ORDER) \ |
658 | __tmp.v = lttng_ust_bswap_64(__tmp.v); \ | |
3ebeea0d MD |
659 | __ctf_tmp_uint64 = (uint64_t) __tmp.v; \ |
660 | break; \ | |
661 | } \ | |
662 | default: \ | |
663 | abort(); \ | |
664 | }; \ | |
fa099471 MD |
665 | memcpy(__stack_data, &__ctf_tmp_uint64, sizeof(uint64_t)); \ |
666 | } \ | |
1ddfd641 MD |
667 | __stack_data += sizeof(int64_t); |
668 | ||
891226fc MJ |
669 | #undef lttng_ust__field_float |
670 | #define lttng_ust__field_float(_type, _item, _src, _nowrite) \ | |
fa099471 MD |
671 | { \ |
672 | double __ctf_tmp_double = (double) (_type) (_src); \ | |
673 | memcpy(__stack_data, &__ctf_tmp_double, sizeof(double)); \ | |
674 | __stack_data += sizeof(double); \ | |
675 | } | |
1ddfd641 | 676 | |
10937ee5 MJ |
677 | #undef lttng_ust__field_array_encoded |
678 | #define lttng_ust__field_array_encoded(_type, _item, _src, _byte_order, _length, \ | |
f3ec4cb5 | 679 | _encoding, _nowrite, _elem_type_base) \ |
fa099471 MD |
680 | { \ |
681 | unsigned long __ctf_tmp_ulong = (unsigned long) (_length); \ | |
59034aab | 682 | const void *__ctf_tmp_ptr = (_src); \ |
fa099471 MD |
683 | memcpy(__stack_data, &__ctf_tmp_ulong, sizeof(unsigned long)); \ |
684 | __stack_data += sizeof(unsigned long); \ | |
b1239ad6 MD |
685 | memcpy(__stack_data, &__ctf_tmp_ptr, sizeof(void *)); \ |
686 | __stack_data += sizeof(void *); \ | |
fa099471 | 687 | } |
1ddfd641 | 688 | |
1d188af9 MJ |
689 | #undef lttng_ust__field_sequence_encoded |
690 | #define lttng_ust__field_sequence_encoded(_type, _item, _src, _byte_order, _length_type, \ | |
f968510a | 691 | _src_length, _encoding, _nowrite, _elem_type_base) \ |
fa099471 MD |
692 | { \ |
693 | unsigned long __ctf_tmp_ulong = (unsigned long) (_src_length); \ | |
59034aab | 694 | const void *__ctf_tmp_ptr = (_src); \ |
fa099471 MD |
695 | memcpy(__stack_data, &__ctf_tmp_ulong, sizeof(unsigned long)); \ |
696 | __stack_data += sizeof(unsigned long); \ | |
b1239ad6 MD |
697 | memcpy(__stack_data, &__ctf_tmp_ptr, sizeof(void *)); \ |
698 | __stack_data += sizeof(void *); \ | |
fa099471 | 699 | } |
1ddfd641 | 700 | |
3202f63a MJ |
701 | #undef lttng_ust__field_string |
702 | #define lttng_ust__field_string(_item, _src, _nowrite) \ | |
fa099471 | 703 | { \ |
24a39530 | 704 | const void *__ctf_tmp_ptr = \ |
ee0889a3 | 705 | ((_src) ? (_src) : LTTNG_UST__NULL_STRING); \ |
b1239ad6 MD |
706 | memcpy(__stack_data, &__ctf_tmp_ptr, sizeof(void *)); \ |
707 | __stack_data += sizeof(void *); \ | |
fa099471 | 708 | } |
1ddfd641 | 709 | |
ddde62ca MJ |
710 | #undef lttng_ust__field_unused |
711 | #define lttng_ust__field_unused(_src) \ | |
5152f6df MJ |
712 | if (0) \ |
713 | (void) (_src); | |
714 | ||
78684808 MJ |
715 | #undef lttng_ust__field_enum |
716 | #define lttng_ust__field_enum(_provider, _name, _type, _item, _src, _nowrite) \ | |
b4064f28 | 717 | lttng_ust__field_integer_ext(_type, _item, _src, LTTNG_UST_BYTE_ORDER, 10, _nowrite) |
c785c634 | 718 | |
cadfcbfc MJ |
719 | #undef LTTNG_UST_TP_ARGS |
720 | #define LTTNG_UST_TP_ARGS(...) __VA_ARGS__ | |
1ddfd641 | 721 | |
efa14d16 MJ |
722 | #undef LTTNG_UST_TP_FIELDS |
723 | #define LTTNG_UST_TP_FIELDS(...) __VA_ARGS__ | |
1ddfd641 | 724 | |
7f2f82c3 MJ |
725 | #undef LTTNG_UST__TRACEPOINT_EVENT_CLASS |
726 | #define LTTNG_UST__TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields) \ | |
1ddfd641 | 727 | static inline \ |
bfcc2759 | 728 | void lttng_ust__event_prepare_interpreter_stack__##_provider##___##_name(char *__stack_data,\ |
6eddcb06 | 729 | LTTNG_UST__TP_ARGS_DATA_PROTO(_args)) \ |
1ddfd641 | 730 | { \ |
5152f6df MJ |
731 | if (0) { \ |
732 | (void) __tp_data; /* don't warn if unused */ \ | |
733 | (void) __stack_data; /* don't warn if unused */ \ | |
734 | } \ | |
735 | \ | |
1ddfd641 MD |
736 | _fields \ |
737 | } | |
738 | ||
bb71a8ea | 739 | #include LTTNG_UST_TRACEPOINT_INCLUDE |
1ddfd641 | 740 | |
1c324e59 | 741 | /* |
df854e41 | 742 | * Stage 4 of tracepoint event generation. |
1c324e59 MD |
743 | * |
744 | * Create static inline function that calculates event payload alignment. | |
745 | */ | |
746 | ||
7f2f82c3 | 747 | /* Reset all macros within LTTNG_UST_TRACEPOINT_EVENT */ |
1c324e59 | 748 | #include <lttng/ust-tracepoint-event-reset.h> |
4774c8f3 | 749 | #include <lttng/ust-tracepoint-event-write.h> |
1c324e59 | 750 | |
b4064f28 MJ |
751 | #undef lttng_ust__field_integer_ext |
752 | #define lttng_ust__field_integer_ext(_type, _item, _src, _byte_order, _base, _nowrite) \ | |
5152f6df MJ |
753 | if (0) \ |
754 | (void) (_src); /* Unused */ \ | |
26376e52 | 755 | __event_align = lttng_ust__tp_max_t(size_t, __event_align, lttng_ust_rb_alignof(_type)); |
1c324e59 | 756 | |
891226fc MJ |
757 | #undef lttng_ust__field_float |
758 | #define lttng_ust__field_float(_type, _item, _src, _nowrite) \ | |
5152f6df MJ |
759 | if (0) \ |
760 | (void) (_src); /* Unused */ \ | |
26376e52 | 761 | __event_align = lttng_ust__tp_max_t(size_t, __event_align, lttng_ust_rb_alignof(_type)); |
1c324e59 | 762 | |
10937ee5 MJ |
763 | #undef lttng_ust__field_array_encoded |
764 | #define lttng_ust__field_array_encoded(_type, _item, _src, _byte_order, _length, \ | |
f3ec4cb5 | 765 | _encoding, _nowrite, _elem_type_base) \ |
5152f6df MJ |
766 | if (0) \ |
767 | (void) (_src); /* Unused */ \ | |
26376e52 | 768 | __event_align = lttng_ust__tp_max_t(size_t, __event_align, lttng_ust_rb_alignof(_type)); |
1c324e59 | 769 | |
1d188af9 MJ |
770 | #undef lttng_ust__field_sequence_encoded |
771 | #define lttng_ust__field_sequence_encoded(_type, _item, _src, _byte_order, _length_type, \ | |
f968510a | 772 | _src_length, _encoding, _nowrite, _elem_type_base) \ |
5152f6df MJ |
773 | if (0) \ |
774 | (void) (_src); /* Unused */ \ | |
775 | if (0) \ | |
776 | (void) (_src_length); /* Unused */ \ | |
26376e52 MD |
777 | __event_align = lttng_ust__tp_max_t(size_t, __event_align, lttng_ust_rb_alignof(_length_type)); \ |
778 | __event_align = lttng_ust__tp_max_t(size_t, __event_align, lttng_ust_rb_alignof(_type)); | |
1c324e59 | 779 | |
3202f63a MJ |
780 | #undef lttng_ust__field_string |
781 | #define lttng_ust__field_string(_item, _src, _nowrite) \ | |
5152f6df MJ |
782 | if (0) \ |
783 | (void) (_src); /* Unused */ | |
784 | ||
ddde62ca MJ |
785 | #undef lttng_ust__field_unused |
786 | #define lttng_ust__field_unused(_src) \ | |
5152f6df MJ |
787 | if (0) \ |
788 | (void) (_src); /* Unused */ | |
1c324e59 | 789 | |
78684808 MJ |
790 | #undef lttng_ust__field_enum |
791 | #define lttng_ust__field_enum(_provider, _name, _type, _item, _src, _nowrite) \ | |
b4064f28 | 792 | lttng_ust__field_integer_ext(_type, _item, _src, LTTNG_UST_BYTE_ORDER, 10, _nowrite) |
c785c634 | 793 | |
cadfcbfc MJ |
794 | #undef LTTNG_UST_TP_ARGS |
795 | #define LTTNG_UST_TP_ARGS(...) __VA_ARGS__ | |
1c324e59 | 796 | |
efa14d16 MJ |
797 | #undef LTTNG_UST_TP_FIELDS |
798 | #define LTTNG_UST_TP_FIELDS(...) __VA_ARGS__ | |
1c324e59 | 799 | |
7f2f82c3 MJ |
800 | #undef LTTNG_UST__TRACEPOINT_EVENT_CLASS |
801 | #define LTTNG_UST__TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields) \ | |
106ff4da | 802 | static inline \ |
bfcc2759 | 803 | size_t lttng_ust__event_get_align__##_provider##___##_name(LTTNG_UST__TP_ARGS_PROTO(_args)) \ |
106ff4da | 804 | lttng_ust_notrace; \ |
1c324e59 | 805 | static inline \ |
bfcc2759 | 806 | size_t lttng_ust__event_get_align__##_provider##___##_name(LTTNG_UST__TP_ARGS_PROTO(_args)) \ |
1c324e59 | 807 | { \ |
26376e52 | 808 | size_t __event_align = 1; \ |
1c324e59 | 809 | _fields \ |
26376e52 | 810 | return __event_align; \ |
1c324e59 MD |
811 | } |
812 | ||
bb71a8ea | 813 | #include LTTNG_UST_TRACEPOINT_INCLUDE |
1c324e59 MD |
814 | |
815 | ||
816 | /* | |
df854e41 | 817 | * Stage 5 of tracepoint event generation. |
1c324e59 MD |
818 | * |
819 | * Create the probe function. This function calls event size calculation | |
820 | * and writes event data into the buffer. | |
821 | */ | |
822 | ||
7f2f82c3 | 823 | /* Reset all macros within LTTNG_UST_TRACEPOINT_EVENT */ |
1c324e59 | 824 | #include <lttng/ust-tracepoint-event-reset.h> |
4774c8f3 | 825 | #include <lttng/ust-tracepoint-event-write.h> |
1c324e59 | 826 | |
b4064f28 MJ |
827 | #undef lttng_ust__field_integer_ext |
828 | #define lttng_ust__field_integer_ext(_type, _item, _src, _byte_order, _base, _nowrite) \ | |
1c324e59 MD |
829 | { \ |
830 | _type __tmp = (_src); \ | |
8936b6c0 | 831 | __chan->ops->event_write(&__ctx, &__tmp, sizeof(__tmp), lttng_ust_rb_alignof(__tmp));\ |
1c324e59 MD |
832 | } |
833 | ||
891226fc MJ |
834 | #undef lttng_ust__field_float |
835 | #define lttng_ust__field_float(_type, _item, _src, _nowrite) \ | |
1c324e59 MD |
836 | { \ |
837 | _type __tmp = (_src); \ | |
8936b6c0 | 838 | __chan->ops->event_write(&__ctx, &__tmp, sizeof(__tmp), lttng_ust_rb_alignof(__tmp));\ |
1c324e59 MD |
839 | } |
840 | ||
10937ee5 MJ |
841 | #undef lttng_ust__field_array_encoded |
842 | #define lttng_ust__field_array_encoded(_type, _item, _src, _byte_order, _length, \ | |
f3ec4cb5 | 843 | _encoding, _nowrite, _elem_type_base) \ |
27927814 | 844 | if (lttng_ust_string_encoding_##_encoding == lttng_ust_string_encoding_none) \ |
8936b6c0 | 845 | __chan->ops->event_write(&__ctx, _src, sizeof(_type) * (_length), lttng_ust_rb_alignof(_type)); \ |
27927814 | 846 | else \ |
879f9b0a | 847 | __chan->ops->event_pstrcpy_pad(&__ctx, (const char *) (_src), _length); \ |
1c324e59 | 848 | |
1d188af9 MJ |
849 | #undef lttng_ust__field_sequence_encoded |
850 | #define lttng_ust__field_sequence_encoded(_type, _item, _src, _byte_order, _length_type, \ | |
f968510a | 851 | _src_length, _encoding, _nowrite, _elem_type_base) \ |
1c324e59 | 852 | { \ |
d71b57b9 | 853 | _length_type __tmpl = __stackvar.__dynamic_len[__dynamic_len_idx]; \ |
8936b6c0 | 854 | __chan->ops->event_write(&__ctx, &__tmpl, sizeof(_length_type), lttng_ust_rb_alignof(_length_type));\ |
1c324e59 | 855 | } \ |
27927814 MD |
856 | if (lttng_ust_string_encoding_##_encoding == lttng_ust_string_encoding_none) \ |
857 | __chan->ops->event_write(&__ctx, _src, \ | |
bae1f483 | 858 | sizeof(_type) * lttng_ust__get_dynamic_len(dest), lttng_ust_rb_alignof(_type)); \ |
27927814 | 859 | else \ |
bae1f483 | 860 | __chan->ops->event_pstrcpy_pad(&__ctx, (const char *) (_src), lttng_ust__get_dynamic_len(dest)); \ |
1c324e59 | 861 | |
3202f63a MJ |
862 | #undef lttng_ust__field_string |
863 | #define lttng_ust__field_string(_item, _src, _nowrite) \ | |
24a39530 PP |
864 | { \ |
865 | const char *__ctf_tmp_string = \ | |
ee0889a3 | 866 | ((_src) ? (_src) : LTTNG_UST__NULL_STRING); \ |
f9ec4a97 | 867 | __chan->ops->event_strcpy(&__ctx, __ctf_tmp_string, \ |
bae1f483 | 868 | lttng_ust__get_dynamic_len(dest)); \ |
24a39530 PP |
869 | } |
870 | ||
ddde62ca MJ |
871 | #undef lttng_ust__field_unused |
872 | #define lttng_ust__field_unused(_src) | |
1c324e59 | 873 | |
78684808 MJ |
874 | #undef lttng_ust__field_enum |
875 | #define lttng_ust__field_enum(_provider, _name, _type, _item, _src, _nowrite) \ | |
b4064f28 | 876 | lttng_ust__field_integer_ext(_type, _item, _src, LTTNG_UST_BYTE_ORDER, 10, _nowrite) |
c785c634 | 877 | |
1c324e59 | 878 | /* Beware: this get len actually consumes the len value */ |
bae1f483 MJ |
879 | #undef lttng_ust__get_dynamic_len |
880 | #define lttng_ust__get_dynamic_len(field) __stackvar.__dynamic_len[__dynamic_len_idx++] | |
1c324e59 | 881 | |
cadfcbfc MJ |
882 | #undef LTTNG_UST_TP_ARGS |
883 | #define LTTNG_UST_TP_ARGS(...) __VA_ARGS__ | |
1c324e59 | 884 | |
efa14d16 MJ |
885 | #undef LTTNG_UST_TP_FIELDS |
886 | #define LTTNG_UST_TP_FIELDS(...) __VA_ARGS__ | |
1c324e59 | 887 | |
95c25348 PW |
888 | /* |
889 | * For state dump, check that "session" argument (mandatory) matches the | |
890 | * session this event belongs to. Ensures that we write state dump data only | |
891 | * into the started session, not into all sessions. | |
892 | */ | |
91fe3e13 MJ |
893 | #undef LTTNG_UST__TP_SESSION_CHECK |
894 | #ifdef LTTNG_UST_TP_SESSION_CHECK | |
895 | #define LTTNG_UST__TP_SESSION_CHECK(session, csession) (session == csession) | |
95c25348 | 896 | #else /* TP_SESSION_CHECK */ |
91fe3e13 | 897 | #define LTTNG_UST__TP_SESSION_CHECK(session, csession) 1 |
95c25348 PW |
898 | #endif /* TP_SESSION_CHECK */ |
899 | ||
97904b41 MD |
900 | /* |
901 | * Use of __builtin_return_address(0) sometimes seems to cause stack | |
902 | * corruption on 32-bit PowerPC. Disable this feature on that | |
903 | * architecture for now by always using the NULL value for the ip | |
904 | * context. | |
905 | */ | |
c28c4a88 MJ |
906 | #undef LTTNG_UST__TP_IP_PARAM |
907 | ||
908 | #ifdef LTTNG_UST_TP_IP_PARAM | |
909 | #define LTTNG_UST__TP_IP_PARAM(x) (x) | |
5dadb547 | 910 | #else /* TP_IP_PARAM */ |
97904b41 | 911 | |
2eba8e39 | 912 | #if defined(LTTNG_UST_ARCH_PPC) && !defined(LTTNG_UST_ARCH_PPC64) |
c28c4a88 | 913 | #define LTTNG_UST__TP_IP_PARAM(x) NULL |
2eba8e39 | 914 | #else |
c28c4a88 | 915 | #define LTTNG_UST__TP_IP_PARAM(x) __builtin_return_address(0) |
2eba8e39 | 916 | #endif |
97904b41 | 917 | |
5dadb547 MD |
918 | #endif /* TP_IP_PARAM */ |
919 | ||
1ddfd641 MD |
920 | /* |
921 | * Using twice size for filter stack data to hold size and pointer for | |
922 | * each field (worse case). For integers, max size required is 64-bit. | |
923 | * Same for double-precision floats. Those fit within | |
924 | * 2*sizeof(unsigned long) for all supported architectures. | |
61ce3223 | 925 | * Perform UNION (||) of filter runtime list. |
1ddfd641 | 926 | */ |
7f2f82c3 | 927 | #undef LTTNG_UST__TRACEPOINT_EVENT_CLASS |
b2e37d27 | 928 | #define LTTNG_UST__TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields) \ |
106ff4da | 929 | static \ |
b2e37d27 | 930 | void lttng_ust__event_probe__##_provider##___##_name(LTTNG_UST__TP_ARGS_DATA_PROTO(_args)) \ |
106ff4da | 931 | lttng_ust_notrace; \ |
a8909ba5 | 932 | static \ |
b2e37d27 | 933 | void lttng_ust__event_probe__##_provider##___##_name(LTTNG_UST__TP_ARGS_DATA_PROTO(_args)) \ |
1c324e59 | 934 | { \ |
ba99fbe2 | 935 | struct lttng_ust_event_common *__event = (struct lttng_ust_event_common *) __tp_data; \ |
1c324e59 | 936 | size_t __dynamic_len_idx = 0; \ |
bfcc2759 | 937 | const size_t __num_fields = LTTNG_UST__TP_ARRAY_SIZE(lttng_ust__event_fields___##_provider##___##_name) - 1; \ |
b2e37d27 | 938 | struct lttng_ust_probe_ctx __probe_ctx; \ |
d71b57b9 | 939 | union { \ |
75026e9f | 940 | size_t __dynamic_len[__num_fields]; \ |
ba99fbe2 | 941 | char __interpreter_stack_data[2 * sizeof(unsigned long) * __num_fields]; \ |
d71b57b9 | 942 | } __stackvar; \ |
1c324e59 | 943 | int __ret; \ |
a2e4d05e | 944 | bool __interpreter_stack_prepared = false; \ |
1c324e59 MD |
945 | \ |
946 | if (0) \ | |
947 | (void) __dynamic_len_idx; /* don't warn if unused */ \ | |
ba99fbe2 MD |
948 | switch (__event->type) { \ |
949 | case LTTNG_UST_EVENT_TYPE_RECORDER: \ | |
950 | { \ | |
26376e52 MD |
951 | struct lttng_ust_event_recorder *__event_recorder = (struct lttng_ust_event_recorder *) __event->child; \ |
952 | struct lttng_ust_channel_buffer *__chan = __event_recorder->chan; \ | |
e7bc0ef6 | 953 | struct lttng_ust_channel_common *__chan_common = __chan->parent; \ |
ba99fbe2 | 954 | \ |
b2e37d27 | 955 | if (!LTTNG_UST__TP_SESSION_CHECK(session, __chan_common->session)) \ |
ba99fbe2 | 956 | return; \ |
e7bc0ef6 | 957 | if (caa_unlikely(!CMM_ACCESS_ONCE(__chan_common->session->active))) \ |
ba99fbe2 | 958 | return; \ |
e7bc0ef6 | 959 | if (caa_unlikely(!CMM_ACCESS_ONCE(__chan_common->enabled))) \ |
ba99fbe2 MD |
960 | return; \ |
961 | break; \ | |
962 | } \ | |
963 | case LTTNG_UST_EVENT_TYPE_NOTIFIER: \ | |
964 | break; \ | |
965 | } \ | |
966 | if (caa_unlikely(!CMM_ACCESS_ONCE(__event->enabled))) \ | |
1c324e59 | 967 | return; \ |
b2e37d27 | 968 | if (caa_unlikely(!LTTNG_UST_TP_RCU_LINK_TEST())) \ |
1b436e01 | 969 | return; \ |
b2e37d27 MD |
970 | __probe_ctx.struct_size = sizeof(struct lttng_ust_probe_ctx); \ |
971 | __probe_ctx.ip = LTTNG_UST__TP_IP_PARAM(LTTNG_UST_TP_IP_PARAM); \ | |
972 | if (caa_unlikely(CMM_ACCESS_ONCE(__event->eval_filter))) { \ | |
bfcc2759 | 973 | lttng_ust__event_prepare_interpreter_stack__##_provider##___##_name(__stackvar.__interpreter_stack_data, \ |
b2e37d27 | 974 | LTTNG_UST__TP_ARGS_DATA_VAR(_args)); \ |
a2e4d05e | 975 | __interpreter_stack_prepared = true; \ |
b2e37d27 MD |
976 | if (caa_likely(__event->run_filter(__event, \ |
977 | __stackvar.__interpreter_stack_data, &__probe_ctx, NULL) != LTTNG_UST_EVENT_FILTER_ACCEPT)) \ | |
61ce3223 | 978 | return; \ |
1ddfd641 | 979 | } \ |
ba99fbe2 MD |
980 | switch (__event->type) { \ |
981 | case LTTNG_UST_EVENT_TYPE_RECORDER: \ | |
982 | { \ | |
26376e52 MD |
983 | size_t __event_len, __event_align; \ |
984 | struct lttng_ust_event_recorder *__event_recorder = (struct lttng_ust_event_recorder *) __event->child; \ | |
985 | struct lttng_ust_channel_buffer *__chan = __event_recorder->chan; \ | |
b2e37d27 | 986 | struct lttng_ust_ring_buffer_ctx __ctx; \ |
ba99fbe2 | 987 | \ |
bfcc2759 | 988 | __event_len = lttng_ust__event_get_size__##_provider##___##_name(__stackvar.__dynamic_len, \ |
6eddcb06 | 989 | LTTNG_UST__TP_ARGS_DATA_VAR(_args)); \ |
26376e52 MD |
990 | __event_align = lttng_ust__event_get_align__##_provider##___##_name(LTTNG_UST__TP_ARGS_VAR(_args)); \ |
991 | lttng_ust_ring_buffer_ctx_init(&__ctx, __event_recorder, __event_len, __event_align, \ | |
b2e37d27 | 992 | &__probe_ctx); \ |
8936b6c0 | 993 | __ret = __chan->ops->event_reserve(&__ctx); \ |
ba99fbe2 MD |
994 | if (__ret < 0) \ |
995 | return; \ | |
996 | _fields \ | |
997 | __chan->ops->event_commit(&__ctx); \ | |
998 | break; \ | |
999 | } \ | |
1000 | case LTTNG_UST_EVENT_TYPE_NOTIFIER: \ | |
1001 | { \ | |
26376e52 | 1002 | struct lttng_ust_event_notifier *__event_notifier = (struct lttng_ust_event_notifier *) __event->child; \ |
a2e4d05e MD |
1003 | struct lttng_ust_notification_ctx __notif_ctx; \ |
1004 | \ | |
1005 | __notif_ctx.struct_size = sizeof(struct lttng_ust_notification_ctx); \ | |
26376e52 | 1006 | __notif_ctx.eval_capture = CMM_ACCESS_ONCE(__event_notifier->eval_capture); \ |
ba99fbe2 | 1007 | \ |
a2e4d05e | 1008 | if (caa_unlikely(!__interpreter_stack_prepared && __notif_ctx.eval_capture)) \ |
bfcc2759 | 1009 | lttng_ust__event_prepare_interpreter_stack__##_provider##___##_name(__stackvar.__interpreter_stack_data, \ |
b2e37d27 | 1010 | LTTNG_UST__TP_ARGS_DATA_VAR(_args)); \ |
ba99fbe2 | 1011 | \ |
26376e52 | 1012 | __event_notifier->notification_send(__event_notifier, \ |
a2e4d05e | 1013 | __stackvar.__interpreter_stack_data, \ |
b2e37d27 | 1014 | &__probe_ctx, \ |
a2e4d05e | 1015 | &__notif_ctx); \ |
ba99fbe2 MD |
1016 | break; \ |
1017 | } \ | |
1018 | } \ | |
1c324e59 MD |
1019 | } |
1020 | ||
bb71a8ea | 1021 | #include LTTNG_UST_TRACEPOINT_INCLUDE |
1c324e59 | 1022 | |
bae1f483 | 1023 | #undef lttng_ust__get_dynamic_len |
1c324e59 | 1024 | |
05ceaafd | 1025 | /* |
882a56d7 | 1026 | * Stage 6 of tracepoint event generation. |
1c324e59 | 1027 | * |
df854e41 MD |
1028 | * Tracepoint loglevel mapping definition generation. We generate a |
1029 | * symbol for each mapping for a provider/event to ensure at most a 1 to | |
1030 | * 1 mapping between events and loglevels. If the symbol is repeated, | |
1031 | * the compiler will complain. | |
05ceaafd MD |
1032 | */ |
1033 | ||
7f2f82c3 | 1034 | /* Reset all macros within LTTNG_UST_TRACEPOINT_EVENT */ |
05ceaafd MD |
1035 | #include <lttng/ust-tracepoint-event-reset.h> |
1036 | ||
4ea4f80e MD |
1037 | /* |
1038 | * Declare _loglevel___##__provider##___##__name as non-static, with | |
1039 | * hidden visibility for c++ handling of weakref. We do a weakref to the | |
1040 | * symbol in a later stage, which requires that the symbol is not | |
1041 | * mangled. | |
1042 | */ | |
1043 | #ifdef __cplusplus | |
fc6d7bef | 1044 | #define LTTNG_UST_TP_EXTERN_C extern "C" |
4ea4f80e | 1045 | #else |
fc6d7bef | 1046 | #define LTTNG_UST_TP_EXTERN_C |
4ea4f80e MD |
1047 | #endif |
1048 | ||
612e9ce4 MJ |
1049 | #undef LTTNG_UST_TRACEPOINT_LOGLEVEL |
1050 | #define LTTNG_UST_TRACEPOINT_LOGLEVEL(__provider, __name, __loglevel) \ | |
3d33ca1d MD |
1051 | static const int _loglevel_value___##__provider##___##__name = __loglevel; \ |
1052 | LTTNG_UST_TP_EXTERN_C const int * const _loglevel___##__provider##___##__name \ | |
1053 | __attribute__((visibility("hidden"))) = \ | |
457a6b58 | 1054 | &_loglevel_value___##__provider##___##__name; |
df854e41 | 1055 | |
bb71a8ea | 1056 | #include LTTNG_UST_TRACEPOINT_INCLUDE |
df854e41 | 1057 | |
fc6d7bef | 1058 | #undef LTTNG_UST_TP_EXTERN_C |
4ea4f80e | 1059 | |
6ddc916d MD |
1060 | /* |
1061 | * Stage 6.1 of tracepoint event generation. | |
1062 | * | |
1063 | * Tracepoint UML URI info. | |
1064 | */ | |
1065 | ||
7f2f82c3 | 1066 | /* Reset all macros within LTTNG_UST_TRACEPOINT_EVENT */ |
6ddc916d MD |
1067 | #include <lttng/ust-tracepoint-event-reset.h> |
1068 | ||
4ea4f80e MD |
1069 | /* |
1070 | * Declare _model_emf_uri___##__provider##___##__name as non-static, | |
1071 | * with hidden visibility for c++ handling of weakref. We do a weakref | |
1072 | * to the symbol in a later stage, which requires that the symbol is not | |
1073 | * mangled. | |
1074 | */ | |
1075 | #ifdef __cplusplus | |
fc6d7bef | 1076 | #define LTTNG_UST_TP_EXTERN_C extern "C" |
4ea4f80e | 1077 | #else |
fc6d7bef | 1078 | #define LTTNG_UST_TP_EXTERN_C |
4ea4f80e MD |
1079 | #endif |
1080 | ||
dbcc2f92 MJ |
1081 | #undef LTTNG_UST_TRACEPOINT_MODEL_EMF_URI |
1082 | #define LTTNG_UST_TRACEPOINT_MODEL_EMF_URI(__provider, __name, __uri) \ | |
3d33ca1d | 1083 | LTTNG_UST_TP_EXTERN_C const char * const _model_emf_uri___##__provider##___##__name \ |
082802f9 | 1084 | __attribute__((visibility("hidden"))) = __uri; \ |
6ddc916d | 1085 | |
bb71a8ea | 1086 | #include LTTNG_UST_TRACEPOINT_INCLUDE |
6ddc916d | 1087 | |
fc6d7bef | 1088 | #undef LTTNG_UST_TP_EXTERN_C |
4ea4f80e | 1089 | |
5b4c6da4 MD |
1090 | /* |
1091 | * Stage 7.0 of tracepoint event generation. | |
1092 | * | |
df854e41 | 1093 | * Create events description structures. We use a weakref because |
3d33ca1d | 1094 | * loglevels are optional. If not declared, the event will point to |
df854e41 | 1095 | * a loglevel that contains NULL. |
3d33ca1d MD |
1096 | * |
1097 | * C++ requires that const objects have a user-declared default | |
1098 | * constructor. However, in both C++ and C, weakref cannot be | |
1099 | * initialized because it causes the weakref attribute to be ignored. | |
1100 | * Therefore, the loglevel and model_emf_uri pointers are not const | |
1101 | * to ensure C++ compilers default-initialize them. | |
df854e41 MD |
1102 | */ |
1103 | ||
7f2f82c3 | 1104 | /* Reset all macros within LTTNG_UST_TRACEPOINT_EVENT */ |
df854e41 MD |
1105 | #include <lttng/ust-tracepoint-event-reset.h> |
1106 | ||
7f2f82c3 | 1107 | #undef LTTNG_UST__TRACEPOINT_EVENT_INSTANCE |
71ca4083 | 1108 | #define LTTNG_UST__TRACEPOINT_EVENT_INSTANCE(_template_provider, _template_name, _provider, _name, _args) \ |
882a56d7 MD |
1109 | static const int * \ |
1110 | __ref_loglevel___##_provider##___##_name \ | |
1111 | __attribute__((weakref ("_loglevel___" #_provider "___" #_name))); \ | |
6ddc916d MD |
1112 | static const char * \ |
1113 | __ref_model_emf_uri___##_provider##___##_name \ | |
1114 | __attribute__((weakref ("_model_emf_uri___" #_provider "___" #_name)));\ | |
bfcc2759 | 1115 | static const struct lttng_ust_event_desc lttng_ust__event_desc___##_provider##_##_name = { \ |
dc11f93f | 1116 | .struct_size = sizeof(struct lttng_ust_event_desc), \ |
5b4c6da4 | 1117 | .event_name = #_name, \ |
c9201081 | 1118 | .probe_desc = <tng_ust__probe_desc___##_provider, \ |
71ca4083 | 1119 | .tp_class = <tng_ust__event_class___##_template_provider##___##_template_name, \ |
882a56d7 | 1120 | .loglevel = &__ref_loglevel___##_provider##___##_name, \ |
dc11f93f | 1121 | .model_emf_uri = &__ref_model_emf_uri___##_provider##___##_name, \ |
df854e41 MD |
1122 | }; |
1123 | ||
bb71a8ea | 1124 | #include LTTNG_UST_TRACEPOINT_INCLUDE |
05ceaafd | 1125 | |
df854e41 | 1126 | /* |
dba770e7 | 1127 | * Stage 7.1 of tracepoint event generation. |
df854e41 MD |
1128 | * |
1129 | * Create array of events. | |
1130 | */ | |
1131 | ||
7f2f82c3 | 1132 | /* Reset all macros within LTTNG_UST_TRACEPOINT_EVENT */ |
df854e41 MD |
1133 | #include <lttng/ust-tracepoint-event-reset.h> |
1134 | ||
7f2f82c3 | 1135 | #undef LTTNG_UST__TRACEPOINT_EVENT_INSTANCE |
71ca4083 | 1136 | #define LTTNG_UST__TRACEPOINT_EVENT_INSTANCE(_template_provider, _template_name, _provider, _name, _args) \ |
bfcc2759 | 1137 | <tng_ust__event_desc___##_provider##_##_name, |
df854e41 | 1138 | |
bfcc2759 | 1139 | static const struct lttng_ust_event_desc * const LTTNG_UST__TP_COMBINE_TOKENS(lttng_ust__event_desc___, LTTNG_UST_TRACEPOINT_PROVIDER)[] = { |
bb71a8ea | 1140 | #include LTTNG_UST_TRACEPOINT_INCLUDE |
1c80c909 | 1141 | NULL, /* Dummy, C99 forbids 0-len array. */ |
05ceaafd MD |
1142 | }; |
1143 | ||
df854e41 | 1144 | |
05ceaafd | 1145 | /* |
882a56d7 | 1146 | * Stage 8 of tracepoint event generation. |
05ceaafd MD |
1147 | * |
1148 | * Create a toplevel descriptor for the whole probe. | |
1149 | */ | |
1150 | ||
c9201081 | 1151 | const struct lttng_ust_probe_desc LTTNG_UST__TP_COMBINE_TOKENS(lttng_ust__probe_desc___, LTTNG_UST_TRACEPOINT_PROVIDER) = { |
dc11f93f | 1152 | .struct_size = sizeof(struct lttng_ust_probe_desc), |
061fc37a | 1153 | .provider_name = lttng_ust__tp_stringify(LTTNG_UST_TRACEPOINT_PROVIDER), |
bfcc2759 MJ |
1154 | .event_desc = LTTNG_UST__TP_COMBINE_TOKENS(lttng_ust__event_desc___, LTTNG_UST_TRACEPOINT_PROVIDER), |
1155 | .nr_events = LTTNG_UST__TP_ARRAY_SIZE(LTTNG_UST__TP_COMBINE_TOKENS(lttng_ust__event_desc___, LTTNG_UST_TRACEPOINT_PROVIDER)) - 1, | |
71d31690 MD |
1156 | .major = LTTNG_UST_PROVIDER_MAJOR, |
1157 | .minor = LTTNG_UST_PROVIDER_MINOR, | |
05ceaafd MD |
1158 | }; |
1159 | ||
03221919 | 1160 | static int LTTNG_UST__TP_COMBINE_TOKENS(lttng_ust__probe_register_refcount___, LTTNG_UST_TRACEPOINT_PROVIDER); |
f082dde9 | 1161 | static struct lttng_ust_registered_probe *LTTNG_UST__TP_COMBINE_TOKENS(lttng_ust__probe_register_cookie___, LTTNG_UST_TRACEPOINT_PROVIDER); |
f0cc794d | 1162 | |
05ceaafd | 1163 | /* |
882a56d7 | 1164 | * Stage 9 of tracepoint event generation. |
05ceaafd | 1165 | * |
1c324e59 | 1166 | * Register/unregister probes at module load/unload. |
628e1d81 MD |
1167 | * |
1168 | * Generate the constructor as an externally visible symbol for use when | |
1169 | * linking the probe statically. | |
f0cc794d MD |
1170 | * |
1171 | * Register refcount is protected by libc dynamic loader mutex. | |
1c324e59 MD |
1172 | */ |
1173 | ||
7f2f82c3 | 1174 | /* Reset all macros within LTTNG_UST_TRACEPOINT_EVENT */ |
1c324e59 | 1175 | #include <lttng/ust-tracepoint-event-reset.h> |
465a0d04 | 1176 | static void |
11bce056 | 1177 | LTTNG_UST__TP_COMBINE_TOKENS(lttng_ust__events_init__, LTTNG_UST_TRACEPOINT_PROVIDER)(void) |
465a0d04 | 1178 | lttng_ust_notrace __attribute__((constructor)); |
a8909ba5 | 1179 | static void |
11bce056 | 1180 | LTTNG_UST__TP_COMBINE_TOKENS(lttng_ust__events_init__, LTTNG_UST_TRACEPOINT_PROVIDER)(void) |
1c324e59 | 1181 | { |
4e48b5d2 | 1182 | struct lttng_ust_registered_probe *reg_probe; |
1c324e59 | 1183 | |
03221919 | 1184 | if (LTTNG_UST__TP_COMBINE_TOKENS(lttng_ust__probe_register_refcount___, |
5b393d64 | 1185 | LTTNG_UST_TRACEPOINT_PROVIDER)++) { |
f0cc794d MD |
1186 | return; |
1187 | } | |
e8bd1da7 | 1188 | /* |
5b393d64 | 1189 | * lttng_ust_tracepoint_provider_check_ ## LTTNG_UST_TRACEPOINT_PROVIDER() is a |
e8bd1da7 MD |
1190 | * static inline function that ensures every probe PROVIDER |
1191 | * argument match the provider within which they appear. It | |
1192 | * calls empty static inline functions, and therefore has no | |
1193 | * runtime effect. However, if it detects an error, a linker | |
1194 | * error will appear. | |
1195 | */ | |
5b393d64 | 1196 | LTTNG_UST__TP_COMBINE_TOKENS(lttng_ust_tracepoint_provider_check_, LTTNG_UST_TRACEPOINT_PROVIDER)(); |
f082dde9 | 1197 | assert(!LTTNG_UST__TP_COMBINE_TOKENS(lttng_ust__probe_register_cookie___, LTTNG_UST_TRACEPOINT_PROVIDER)); |
c9201081 | 1198 | reg_probe = lttng_ust_probe_register(<TNG_UST__TP_COMBINE_TOKENS(lttng_ust__probe_desc___, LTTNG_UST_TRACEPOINT_PROVIDER)); |
4e48b5d2 MD |
1199 | if (!reg_probe) { |
1200 | fprintf(stderr, "LTTng-UST: Error while registering tracepoint probe.\n"); | |
7d381d6e MD |
1201 | abort(); |
1202 | } | |
f082dde9 | 1203 | LTTNG_UST__TP_COMBINE_TOKENS(lttng_ust__probe_register_cookie___, LTTNG_UST_TRACEPOINT_PROVIDER) = reg_probe; |
1c324e59 MD |
1204 | } |
1205 | ||
c589eca2 | 1206 | static void |
638ce920 | 1207 | LTTNG_UST__TP_COMBINE_TOKENS(lttng_ust__events_exit__, LTTNG_UST_TRACEPOINT_PROVIDER)(void) |
c589eca2 | 1208 | lttng_ust_notrace __attribute__((destructor)); |
a8909ba5 | 1209 | static void |
638ce920 | 1210 | LTTNG_UST__TP_COMBINE_TOKENS(lttng_ust__events_exit__, LTTNG_UST_TRACEPOINT_PROVIDER)(void) |
1c324e59 | 1211 | { |
03221919 | 1212 | if (--LTTNG_UST__TP_COMBINE_TOKENS(lttng_ust__probe_register_refcount___, |
5b393d64 | 1213 | LTTNG_UST_TRACEPOINT_PROVIDER)) { |
f0cc794d MD |
1214 | return; |
1215 | } | |
f082dde9 MJ |
1216 | lttng_ust_probe_unregister(LTTNG_UST__TP_COMBINE_TOKENS(lttng_ust__probe_register_cookie___, LTTNG_UST_TRACEPOINT_PROVIDER)); |
1217 | LTTNG_UST__TP_COMBINE_TOKENS(lttng_ust__probe_register_cookie___, LTTNG_UST_TRACEPOINT_PROVIDER) = NULL; | |
1c324e59 | 1218 | } |
628e1d81 | 1219 | |
29d6f421 MD |
1220 | /* |
1221 | * LTTNG_UST_TRACEPOINT_PROVIDER_HIDDEN_DEFINITION: Define this before | |
1222 | * including a tracepoint instrumentation header to hide symbols | |
1223 | * associated with the tracepoint provider. This is useful if the | |
1224 | * tracepoint definition (including the header after defining | |
1225 | * LTTNG_UST_TRACEPOINT_DEFINE) is in the same module as the provider | |
1226 | * (including the header after defining | |
1227 | * LTTNG_UST_TRACEPOINT_CREATE_PROBES). | |
1228 | */ | |
1229 | #undef LTTNG_UST__TRACEPOINT_PROVIDER_DEFINITION_VISIBILITY | |
1230 | #ifdef LTTNG_UST_TRACEPOINT_PROVIDER_HIDDEN_DEFINITION | |
1231 | #define LTTNG_UST__TRACEPOINT_PROVIDER_DEFINITION_VISIBILITY __attribute__((visibility("hidden"))) | |
1232 | #else | |
1233 | #define LTTNG_UST__TRACEPOINT_PROVIDER_DEFINITION_VISIBILITY __attribute__((visibility("default"))) | |
1234 | #endif | |
1235 | ||
5b393d64 | 1236 | int LTTNG_UST__TP_COMBINE_TOKENS(lttng_ust_tracepoint_provider_, LTTNG_UST_TRACEPOINT_PROVIDER) |
29d6f421 | 1237 | LTTNG_UST__TRACEPOINT_PROVIDER_DEFINITION_VISIBILITY; |