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1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * This file defines the trace event structures that go into the ring
4 * buffer directly. They are created via macros so that changes for them
5 * appear in the format file. Using macros will automate this process.
6 *
7 * The macro used to create a ftrace data structure is:
8 *
9 * FTRACE_ENTRY( name, struct_name, id, structure, print )
10 *
11 * @name: the name used the event name, as well as the name of
12 * the directory that holds the format file.
13 *
14 * @struct_name: the name of the structure that is created.
15 *
16 * @id: The event identifier that is used to detect what event
17 * this is from the ring buffer.
18 *
19 * @structure: the structure layout
20 *
21 * - __field( type, item )
22 * This is equivalent to declaring
23 * type item;
24 * in the structure.
25 * - __array( type, item, size )
26 * This is equivalent to declaring
27 * type item[size];
28 * in the structure.
29 *
30 * * for structures within structures, the format of the internal
31 * structure is laid out. This allows the internal structure
32 * to be deciphered for the format file. Although these macros
33 * may become out of sync with the internal structure, they
34 * will create a compile error if it happens. Since the
35 * internel structures are just tracing helpers, this is not
36 * an issue.
37 *
38 * When an internal structure is used, it should use:
39 *
40 * __field_struct( type, item )
41 *
42 * instead of __field. This will prevent it from being shown in
43 * the output file. The fields in the structure should use.
44 *
45 * __field_desc( type, container, item )
46 * __array_desc( type, container, item, len )
47 *
48 * type, item and len are the same as __field and __array, but
49 * container is added. This is the name of the item in
50 * __field_struct that this is describing.
51 *
52 *
53 * @print: the print format shown to users in the format file.
54 */
55
56/*
57 * Function trace entry - function address and parent function address:
58 */
59FTRACE_ENTRY_REG(function, ftrace_entry,
60
61 TRACE_FN,
62
63 F_STRUCT(
64 __field( unsigned long, ip )
65 __field( unsigned long, parent_ip )
66 ),
67
68 F_printk(" %lx <-- %lx", __entry->ip, __entry->parent_ip),
69
70 FILTER_TRACE_FN,
71
72 perf_ftrace_event_register
73);
74
75/* Function call entry */
76FTRACE_ENTRY_PACKED(funcgraph_entry, ftrace_graph_ent_entry,
77
78 TRACE_GRAPH_ENT,
79
80 F_STRUCT(
81 __field_struct( struct ftrace_graph_ent, graph_ent )
82 __field_desc( unsigned long, graph_ent, func )
83 __field_desc( int, graph_ent, depth )
84 ),
85
86 F_printk("--> %lx (%d)", __entry->func, __entry->depth),
87
88 FILTER_OTHER
89);
90
91/* Function return entry */
92FTRACE_ENTRY_PACKED(funcgraph_exit, ftrace_graph_ret_entry,
93
94 TRACE_GRAPH_RET,
95
96 F_STRUCT(
97 __field_struct( struct ftrace_graph_ret, ret )
98 __field_desc( unsigned long, ret, func )
99 __field_desc( unsigned long long, ret, calltime)
100 __field_desc( unsigned long long, ret, rettime )
101 __field_desc( unsigned long, ret, overrun )
102 __field_desc( int, ret, depth )
103 ),
104
105 F_printk("<-- %lx (%d) (start: %llx end: %llx) over: %d",
106 __entry->func, __entry->depth,
107 __entry->calltime, __entry->rettime,
108 __entry->depth),
109
110 FILTER_OTHER
111);
112
113/*
114 * Context switch trace entry - which task (and prio) we switched from/to:
115 *
116 * This is used for both wakeup and context switches. We only want
117 * to create one structure, but we need two outputs for it.
118 */
119#define FTRACE_CTX_FIELDS \
120 __field( unsigned int, prev_pid ) \
121 __field( unsigned int, next_pid ) \
122 __field( unsigned int, next_cpu ) \
123 __field( unsigned char, prev_prio ) \
124 __field( unsigned char, prev_state ) \
125 __field( unsigned char, next_prio ) \
126 __field( unsigned char, next_state )
127
128FTRACE_ENTRY(context_switch, ctx_switch_entry,
129
130 TRACE_CTX,
131
132 F_STRUCT(
133 FTRACE_CTX_FIELDS
134 ),
135
136 F_printk("%u:%u:%u ==> %u:%u:%u [%03u]",
137 __entry->prev_pid, __entry->prev_prio, __entry->prev_state,
138 __entry->next_pid, __entry->next_prio, __entry->next_state,
139 __entry->next_cpu),
140
141 FILTER_OTHER
142);
143
144/*
145 * FTRACE_ENTRY_DUP only creates the format file, it will not
146 * create another structure.
147 */
148FTRACE_ENTRY_DUP(wakeup, ctx_switch_entry,
149
150 TRACE_WAKE,
151
152 F_STRUCT(
153 FTRACE_CTX_FIELDS
154 ),
155
156 F_printk("%u:%u:%u ==+ %u:%u:%u [%03u]",
157 __entry->prev_pid, __entry->prev_prio, __entry->prev_state,
158 __entry->next_pid, __entry->next_prio, __entry->next_state,
159 __entry->next_cpu),
160
161 FILTER_OTHER
162);
163
164/*
165 * Stack-trace entry:
166 */
167
168#define FTRACE_STACK_ENTRIES 8
169
170#ifndef CONFIG_64BIT
171# define IP_FMT "%08lx"
172#else
173# define IP_FMT "%016lx"
174#endif
175
176FTRACE_ENTRY(kernel_stack, stack_entry,
177
178 TRACE_STACK,
179
180 F_STRUCT(
181 __field( int, size )
182 __dynamic_array(unsigned long, caller )
183 ),
184
185 F_printk("\t=> (" IP_FMT ")\n\t=> (" IP_FMT ")\n\t=> (" IP_FMT ")\n"
186 "\t=> (" IP_FMT ")\n\t=> (" IP_FMT ")\n\t=> (" IP_FMT ")\n"
187 "\t=> (" IP_FMT ")\n\t=> (" IP_FMT ")\n",
188 __entry->caller[0], __entry->caller[1], __entry->caller[2],
189 __entry->caller[3], __entry->caller[4], __entry->caller[5],
190 __entry->caller[6], __entry->caller[7]),
191
192 FILTER_OTHER
193);
194
195FTRACE_ENTRY(user_stack, userstack_entry,
196
197 TRACE_USER_STACK,
198
199 F_STRUCT(
200 __field( unsigned int, tgid )
201 __array( unsigned long, caller, FTRACE_STACK_ENTRIES )
202 ),
203
204 F_printk("\t=> (" IP_FMT ")\n\t=> (" IP_FMT ")\n\t=> (" IP_FMT ")\n"
205 "\t=> (" IP_FMT ")\n\t=> (" IP_FMT ")\n\t=> (" IP_FMT ")\n"
206 "\t=> (" IP_FMT ")\n\t=> (" IP_FMT ")\n",
207 __entry->caller[0], __entry->caller[1], __entry->caller[2],
208 __entry->caller[3], __entry->caller[4], __entry->caller[5],
209 __entry->caller[6], __entry->caller[7]),
210
211 FILTER_OTHER
212);
213
214/*
215 * trace_printk entry:
216 */
217FTRACE_ENTRY(bprint, bprint_entry,
218
219 TRACE_BPRINT,
220
221 F_STRUCT(
222 __field( unsigned long, ip )
223 __field( const char *, fmt )
224 __dynamic_array( u32, buf )
225 ),
226
227 F_printk("%ps: %s",
228 (void *)__entry->ip, __entry->fmt),
229
230 FILTER_OTHER
231);
232
233FTRACE_ENTRY(print, print_entry,
234
235 TRACE_PRINT,
236
237 F_STRUCT(
238 __field( unsigned long, ip )
239 __dynamic_array( char, buf )
240 ),
241
242 F_printk("%ps: %s",
243 (void *)__entry->ip, __entry->buf),
244
245 FILTER_OTHER
246);
247
248FTRACE_ENTRY(raw_data, raw_data_entry,
249
250 TRACE_RAW_DATA,
251
252 F_STRUCT(
253 __field( unsigned int, id )
254 __dynamic_array( char, buf )
255 ),
256
257 F_printk("id:%04x %08x",
258 __entry->id, (int)__entry->buf[0]),
259
260 FILTER_OTHER
261);
262
263FTRACE_ENTRY(bputs, bputs_entry,
264
265 TRACE_BPUTS,
266
267 F_STRUCT(
268 __field( unsigned long, ip )
269 __field( const char *, str )
270 ),
271
272 F_printk("%ps: %s",
273 (void *)__entry->ip, __entry->str),
274
275 FILTER_OTHER
276);
277
278FTRACE_ENTRY(mmiotrace_rw, trace_mmiotrace_rw,
279
280 TRACE_MMIO_RW,
281
282 F_STRUCT(
283 __field_struct( struct mmiotrace_rw, rw )
284 __field_desc( resource_size_t, rw, phys )
285 __field_desc( unsigned long, rw, value )
286 __field_desc( unsigned long, rw, pc )
287 __field_desc( int, rw, map_id )
288 __field_desc( unsigned char, rw, opcode )
289 __field_desc( unsigned char, rw, width )
290 ),
291
292 F_printk("%lx %lx %lx %d %x %x",
293 (unsigned long)__entry->phys, __entry->value, __entry->pc,
294 __entry->map_id, __entry->opcode, __entry->width),
295
296 FILTER_OTHER
297);
298
299FTRACE_ENTRY(mmiotrace_map, trace_mmiotrace_map,
300
301 TRACE_MMIO_MAP,
302
303 F_STRUCT(
304 __field_struct( struct mmiotrace_map, map )
305 __field_desc( resource_size_t, map, phys )
306 __field_desc( unsigned long, map, virt )
307 __field_desc( unsigned long, map, len )
308 __field_desc( int, map, map_id )
309 __field_desc( unsigned char, map, opcode )
310 ),
311
312 F_printk("%lx %lx %lx %d %x",
313 (unsigned long)__entry->phys, __entry->virt, __entry->len,
314 __entry->map_id, __entry->opcode),
315
316 FILTER_OTHER
317);
318
319
320#define TRACE_FUNC_SIZE 30
321#define TRACE_FILE_SIZE 20
322
323FTRACE_ENTRY(branch, trace_branch,
324
325 TRACE_BRANCH,
326
327 F_STRUCT(
328 __field( unsigned int, line )
329 __array( char, func, TRACE_FUNC_SIZE+1 )
330 __array( char, file, TRACE_FILE_SIZE+1 )
331 __field( char, correct )
332 __field( char, constant )
333 ),
334
335 F_printk("%u:%s:%s (%u)%s",
336 __entry->line,
337 __entry->func, __entry->file, __entry->correct,
338 __entry->constant ? " CONSTANT" : ""),
339
340 FILTER_OTHER
341);
342
343
344FTRACE_ENTRY(hwlat, hwlat_entry,
345
346 TRACE_HWLAT,
347
348 F_STRUCT(
349 __field( u64, duration )
350 __field( u64, outer_duration )
351 __field( u64, nmi_total_ts )
352 __field_struct( struct timespec64, timestamp )
353 __field_desc( s64, timestamp, tv_sec )
354 __field_desc( long, timestamp, tv_nsec )
355 __field( unsigned int, nmi_count )
356 __field( unsigned int, seqnum )
357 ),
358
359 F_printk("cnt:%u\tts:%010llu.%010lu\tinner:%llu\touter:%llu\tnmi-ts:%llu\tnmi-count:%u\n",
360 __entry->seqnum,
361 __entry->tv_sec,
362 __entry->tv_nsec,
363 __entry->duration,
364 __entry->outer_duration,
365 __entry->nmi_total_ts,
366 __entry->nmi_count),
367
368 FILTER_OTHER
369);
1/*
2 * This file defines the trace event structures that go into the ring
3 * buffer directly. They are created via macros so that changes for them
4 * appear in the format file. Using macros will automate this process.
5 *
6 * The macro used to create a ftrace data structure is:
7 *
8 * FTRACE_ENTRY( name, struct_name, id, structure, print )
9 *
10 * @name: the name used the event name, as well as the name of
11 * the directory that holds the format file.
12 *
13 * @struct_name: the name of the structure that is created.
14 *
15 * @id: The event identifier that is used to detect what event
16 * this is from the ring buffer.
17 *
18 * @structure: the structure layout
19 *
20 * - __field( type, item )
21 * This is equivalent to declaring
22 * type item;
23 * in the structure.
24 * - __array( type, item, size )
25 * This is equivalent to declaring
26 * type item[size];
27 * in the structure.
28 *
29 * * for structures within structures, the format of the internal
30 * structure is laid out. This allows the internal structure
31 * to be deciphered for the format file. Although these macros
32 * may become out of sync with the internal structure, they
33 * will create a compile error if it happens. Since the
34 * internel structures are just tracing helpers, this is not
35 * an issue.
36 *
37 * When an internal structure is used, it should use:
38 *
39 * __field_struct( type, item )
40 *
41 * instead of __field. This will prevent it from being shown in
42 * the output file. The fields in the structure should use.
43 *
44 * __field_desc( type, container, item )
45 * __array_desc( type, container, item, len )
46 *
47 * type, item and len are the same as __field and __array, but
48 * container is added. This is the name of the item in
49 * __field_struct that this is describing.
50 *
51 *
52 * @print: the print format shown to users in the format file.
53 */
54
55/*
56 * Function trace entry - function address and parent function address:
57 */
58FTRACE_ENTRY_REG(function, ftrace_entry,
59
60 TRACE_FN,
61
62 F_STRUCT(
63 __field( unsigned long, ip )
64 __field( unsigned long, parent_ip )
65 ),
66
67 F_printk(" %lx <-- %lx", __entry->ip, __entry->parent_ip),
68
69 FILTER_TRACE_FN,
70
71 perf_ftrace_event_register
72);
73
74/* Function call entry */
75FTRACE_ENTRY(funcgraph_entry, ftrace_graph_ent_entry,
76
77 TRACE_GRAPH_ENT,
78
79 F_STRUCT(
80 __field_struct( struct ftrace_graph_ent, graph_ent )
81 __field_desc( unsigned long, graph_ent, func )
82 __field_desc( int, graph_ent, depth )
83 ),
84
85 F_printk("--> %lx (%d)", __entry->func, __entry->depth),
86
87 FILTER_OTHER
88);
89
90/* Function return entry */
91FTRACE_ENTRY(funcgraph_exit, ftrace_graph_ret_entry,
92
93 TRACE_GRAPH_RET,
94
95 F_STRUCT(
96 __field_struct( struct ftrace_graph_ret, ret )
97 __field_desc( unsigned long, ret, func )
98 __field_desc( unsigned long long, ret, calltime)
99 __field_desc( unsigned long long, ret, rettime )
100 __field_desc( unsigned long, ret, overrun )
101 __field_desc( int, ret, depth )
102 ),
103
104 F_printk("<-- %lx (%d) (start: %llx end: %llx) over: %d",
105 __entry->func, __entry->depth,
106 __entry->calltime, __entry->rettime,
107 __entry->depth),
108
109 FILTER_OTHER
110);
111
112/*
113 * Context switch trace entry - which task (and prio) we switched from/to:
114 *
115 * This is used for both wakeup and context switches. We only want
116 * to create one structure, but we need two outputs for it.
117 */
118#define FTRACE_CTX_FIELDS \
119 __field( unsigned int, prev_pid ) \
120 __field( unsigned int, next_pid ) \
121 __field( unsigned int, next_cpu ) \
122 __field( unsigned char, prev_prio ) \
123 __field( unsigned char, prev_state ) \
124 __field( unsigned char, next_prio ) \
125 __field( unsigned char, next_state )
126
127FTRACE_ENTRY(context_switch, ctx_switch_entry,
128
129 TRACE_CTX,
130
131 F_STRUCT(
132 FTRACE_CTX_FIELDS
133 ),
134
135 F_printk("%u:%u:%u ==> %u:%u:%u [%03u]",
136 __entry->prev_pid, __entry->prev_prio, __entry->prev_state,
137 __entry->next_pid, __entry->next_prio, __entry->next_state,
138 __entry->next_cpu),
139
140 FILTER_OTHER
141);
142
143/*
144 * FTRACE_ENTRY_DUP only creates the format file, it will not
145 * create another structure.
146 */
147FTRACE_ENTRY_DUP(wakeup, ctx_switch_entry,
148
149 TRACE_WAKE,
150
151 F_STRUCT(
152 FTRACE_CTX_FIELDS
153 ),
154
155 F_printk("%u:%u:%u ==+ %u:%u:%u [%03u]",
156 __entry->prev_pid, __entry->prev_prio, __entry->prev_state,
157 __entry->next_pid, __entry->next_prio, __entry->next_state,
158 __entry->next_cpu),
159
160 FILTER_OTHER
161);
162
163/*
164 * Stack-trace entry:
165 */
166
167#define FTRACE_STACK_ENTRIES 8
168
169#ifndef CONFIG_64BIT
170# define IP_FMT "%08lx"
171#else
172# define IP_FMT "%016lx"
173#endif
174
175FTRACE_ENTRY(kernel_stack, stack_entry,
176
177 TRACE_STACK,
178
179 F_STRUCT(
180 __field( int, size )
181 __dynamic_array(unsigned long, caller )
182 ),
183
184 F_printk("\t=> (" IP_FMT ")\n\t=> (" IP_FMT ")\n\t=> (" IP_FMT ")\n"
185 "\t=> (" IP_FMT ")\n\t=> (" IP_FMT ")\n\t=> (" IP_FMT ")\n"
186 "\t=> (" IP_FMT ")\n\t=> (" IP_FMT ")\n",
187 __entry->caller[0], __entry->caller[1], __entry->caller[2],
188 __entry->caller[3], __entry->caller[4], __entry->caller[5],
189 __entry->caller[6], __entry->caller[7]),
190
191 FILTER_OTHER
192);
193
194FTRACE_ENTRY(user_stack, userstack_entry,
195
196 TRACE_USER_STACK,
197
198 F_STRUCT(
199 __field( unsigned int, tgid )
200 __array( unsigned long, caller, FTRACE_STACK_ENTRIES )
201 ),
202
203 F_printk("\t=> (" IP_FMT ")\n\t=> (" IP_FMT ")\n\t=> (" IP_FMT ")\n"
204 "\t=> (" IP_FMT ")\n\t=> (" IP_FMT ")\n\t=> (" IP_FMT ")\n"
205 "\t=> (" IP_FMT ")\n\t=> (" IP_FMT ")\n",
206 __entry->caller[0], __entry->caller[1], __entry->caller[2],
207 __entry->caller[3], __entry->caller[4], __entry->caller[5],
208 __entry->caller[6], __entry->caller[7]),
209
210 FILTER_OTHER
211);
212
213/*
214 * trace_printk entry:
215 */
216FTRACE_ENTRY(bprint, bprint_entry,
217
218 TRACE_BPRINT,
219
220 F_STRUCT(
221 __field( unsigned long, ip )
222 __field( const char *, fmt )
223 __dynamic_array( u32, buf )
224 ),
225
226 F_printk("%ps: %s",
227 (void *)__entry->ip, __entry->fmt),
228
229 FILTER_OTHER
230);
231
232FTRACE_ENTRY(print, print_entry,
233
234 TRACE_PRINT,
235
236 F_STRUCT(
237 __field( unsigned long, ip )
238 __dynamic_array( char, buf )
239 ),
240
241 F_printk("%ps: %s",
242 (void *)__entry->ip, __entry->buf),
243
244 FILTER_OTHER
245);
246
247FTRACE_ENTRY(bputs, bputs_entry,
248
249 TRACE_BPUTS,
250
251 F_STRUCT(
252 __field( unsigned long, ip )
253 __field( const char *, str )
254 ),
255
256 F_printk("%ps: %s",
257 (void *)__entry->ip, __entry->str),
258
259 FILTER_OTHER
260);
261
262FTRACE_ENTRY(mmiotrace_rw, trace_mmiotrace_rw,
263
264 TRACE_MMIO_RW,
265
266 F_STRUCT(
267 __field_struct( struct mmiotrace_rw, rw )
268 __field_desc( resource_size_t, rw, phys )
269 __field_desc( unsigned long, rw, value )
270 __field_desc( unsigned long, rw, pc )
271 __field_desc( int, rw, map_id )
272 __field_desc( unsigned char, rw, opcode )
273 __field_desc( unsigned char, rw, width )
274 ),
275
276 F_printk("%lx %lx %lx %d %x %x",
277 (unsigned long)__entry->phys, __entry->value, __entry->pc,
278 __entry->map_id, __entry->opcode, __entry->width),
279
280 FILTER_OTHER
281);
282
283FTRACE_ENTRY(mmiotrace_map, trace_mmiotrace_map,
284
285 TRACE_MMIO_MAP,
286
287 F_STRUCT(
288 __field_struct( struct mmiotrace_map, map )
289 __field_desc( resource_size_t, map, phys )
290 __field_desc( unsigned long, map, virt )
291 __field_desc( unsigned long, map, len )
292 __field_desc( int, map, map_id )
293 __field_desc( unsigned char, map, opcode )
294 ),
295
296 F_printk("%lx %lx %lx %d %x",
297 (unsigned long)__entry->phys, __entry->virt, __entry->len,
298 __entry->map_id, __entry->opcode),
299
300 FILTER_OTHER
301);
302
303
304#define TRACE_FUNC_SIZE 30
305#define TRACE_FILE_SIZE 20
306
307FTRACE_ENTRY(branch, trace_branch,
308
309 TRACE_BRANCH,
310
311 F_STRUCT(
312 __field( unsigned int, line )
313 __array( char, func, TRACE_FUNC_SIZE+1 )
314 __array( char, file, TRACE_FILE_SIZE+1 )
315 __field( char, correct )
316 ),
317
318 F_printk("%u:%s:%s (%u)",
319 __entry->line,
320 __entry->func, __entry->file, __entry->correct),
321
322 FILTER_OTHER
323);
324