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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 *
d7315094 29 * * for structures within structures, the format of the internal
25985edc 30 * structure is laid out. This allows the internal structure
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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 *
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52 * @print: the print format shown to users in the format file.
53 */
54
55/*
b595076a 56 * Function trace entry - function address and parent function address:
0a1c49db 57 */
ced39002 58FTRACE_ENTRY_REG(function, ftrace_entry,
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59
60 TRACE_FN,
61
62 F_STRUCT(
63 __field( unsigned long, ip )
64 __field( unsigned long, parent_ip )
65 ),
66
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67 F_printk(" %lx <-- %lx", __entry->ip, __entry->parent_ip),
68
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69 FILTER_TRACE_FN,
70
ced39002 71 perf_ftrace_event_register
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72);
73
74/* Function call entry */
a4a551b8 75FTRACE_ENTRY_PACKED(funcgraph_entry, ftrace_graph_ent_entry,
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76
77 TRACE_GRAPH_ENT,
78
79 F_STRUCT(
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80 __field_struct( struct ftrace_graph_ent, graph_ent )
81 __field_desc( unsigned long, graph_ent, func )
82 __field_desc( int, graph_ent, depth )
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83 ),
84
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85 F_printk("--> %lx (%d)", __entry->func, __entry->depth),
86
87 FILTER_OTHER
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88);
89
90/* Function return entry */
a4a551b8 91FTRACE_ENTRY_PACKED(funcgraph_exit, ftrace_graph_ret_entry,
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92
93 TRACE_GRAPH_RET,
94
95 F_STRUCT(
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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 )
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102 ),
103
104 F_printk("<-- %lx (%d) (start: %llx end: %llx) over: %d",
105 __entry->func, __entry->depth,
c16de8fd 106 __entry->calltime, __entry->rettime,
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107 __entry->depth),
108
109 FILTER_OTHER
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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 ) \
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120 __field( unsigned int, next_pid ) \
121 __field( unsigned int, next_cpu ) \
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122 __field( unsigned char, prev_prio ) \
123 __field( unsigned char, prev_state ) \
0a1c49db 124 __field( unsigned char, next_prio ) \
140e4f2d 125 __field( unsigned char, next_state )
0a1c49db 126
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127FTRACE_ENTRY(context_switch, ctx_switch_entry,
128
129 TRACE_CTX,
130
131 F_STRUCT(
132 FTRACE_CTX_FIELDS
133 ),
134
c16de8fd 135 F_printk("%u:%u:%u ==> %u:%u:%u [%03u]",
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136 __entry->prev_pid, __entry->prev_prio, __entry->prev_state,
137 __entry->next_pid, __entry->next_prio, __entry->next_state,
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138 __entry->next_cpu),
139
140 FILTER_OTHER
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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,
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158 __entry->next_cpu),
159
160 FILTER_OTHER
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161);
162
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163/*
164 * Stack-trace entry:
165 */
166
167#define FTRACE_STACK_ENTRIES 8
168
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169#ifndef CONFIG_64BIT
170# define IP_FMT "%08lx"
171#else
172# define IP_FMT "%016lx"
173#endif
174
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175FTRACE_ENTRY(kernel_stack, stack_entry,
176
177 TRACE_STACK,
178
179 F_STRUCT(
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180 __field( int, size )
181 __dynamic_array(unsigned long, caller )
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182 ),
183
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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",
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187 __entry->caller[0], __entry->caller[1], __entry->caller[2],
188 __entry->caller[3], __entry->caller[4], __entry->caller[5],
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189 __entry->caller[6], __entry->caller[7]),
190
191 FILTER_OTHER
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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
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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",
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206 __entry->caller[0], __entry->caller[1], __entry->caller[2],
207 __entry->caller[3], __entry->caller[4], __entry->caller[5],
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208 __entry->caller[6], __entry->caller[7]),
209
210 FILTER_OTHER
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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
bbedb179 226 F_printk("%ps: %s",
09ae7234 227 (void *)__entry->ip, __entry->fmt),
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228
229 FILTER_OTHER
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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
bbedb179 241 F_printk("%ps: %s",
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242 (void *)__entry->ip, __entry->buf),
243
244 FILTER_OTHER
245);
246
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247FTRACE_ENTRY(raw_data, raw_data_entry,
248
249 TRACE_RAW_DATA,
250
251 F_STRUCT(
252 __field( unsigned int, id )
253 __dynamic_array( char, buf )
254 ),
255
256 F_printk("id:%04x %08x",
257 __entry->id, (int)__entry->buf[0]),
258
259 FILTER_OTHER
260);
261
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262FTRACE_ENTRY(bputs, bputs_entry,
263
264 TRACE_BPUTS,
265
266 F_STRUCT(
267 __field( unsigned long, ip )
268 __field( const char *, str )
269 ),
270
bbedb179 271 F_printk("%ps: %s",
09ae7234 272 (void *)__entry->ip, __entry->str),
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273
274 FILTER_OTHER
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275);
276
277FTRACE_ENTRY(mmiotrace_rw, trace_mmiotrace_rw,
278
279 TRACE_MMIO_RW,
280
281 F_STRUCT(
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282 __field_struct( struct mmiotrace_rw, rw )
283 __field_desc( resource_size_t, rw, phys )
284 __field_desc( unsigned long, rw, value )
285 __field_desc( unsigned long, rw, pc )
286 __field_desc( int, rw, map_id )
287 __field_desc( unsigned char, rw, opcode )
288 __field_desc( unsigned char, rw, width )
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289 ),
290
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291 F_printk("%lx %lx %lx %d %x %x",
292 (unsigned long)__entry->phys, __entry->value, __entry->pc,
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293 __entry->map_id, __entry->opcode, __entry->width),
294
295 FILTER_OTHER
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296);
297
298FTRACE_ENTRY(mmiotrace_map, trace_mmiotrace_map,
299
300 TRACE_MMIO_MAP,
301
302 F_STRUCT(
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303 __field_struct( struct mmiotrace_map, map )
304 __field_desc( resource_size_t, map, phys )
305 __field_desc( unsigned long, map, virt )
306 __field_desc( unsigned long, map, len )
307 __field_desc( int, map, map_id )
308 __field_desc( unsigned char, map, opcode )
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309 ),
310
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311 F_printk("%lx %lx %lx %d %x",
312 (unsigned long)__entry->phys, __entry->virt, __entry->len,
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313 __entry->map_id, __entry->opcode),
314
315 FILTER_OTHER
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316);
317
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318
319#define TRACE_FUNC_SIZE 30
320#define TRACE_FILE_SIZE 20
321
322FTRACE_ENTRY(branch, trace_branch,
323
324 TRACE_BRANCH,
325
326 F_STRUCT(
327 __field( unsigned int, line )
328 __array( char, func, TRACE_FUNC_SIZE+1 )
329 __array( char, file, TRACE_FILE_SIZE+1 )
330 __field( char, correct )
331 ),
332
333 F_printk("%u:%s:%s (%u)",
334 __entry->line,
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335 __entry->func, __entry->file, __entry->correct),
336
337 FILTER_OTHER
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338);
339
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340
341FTRACE_ENTRY(hwlat, hwlat_entry,
342
343 TRACE_HWLAT,
344
345 F_STRUCT(
346 __field( u64, duration )
347 __field( u64, outer_duration )
7b2c8625 348 __field( u64, nmi_total_ts )
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349 __field_struct( struct timespec, timestamp )
350 __field_desc( long, timestamp, tv_sec )
351 __field_desc( long, timestamp, tv_nsec )
7b2c8625 352 __field( unsigned int, nmi_count )
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353 __field( unsigned int, seqnum )
354 ),
355
7b2c8625 356 F_printk("cnt:%u\tts:%010lu.%010lu\tinner:%llu\touter:%llunmi-ts:%llu\tnmi-count:%u\n",
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357 __entry->seqnum,
358 __entry->tv_sec,
359 __entry->tv_nsec,
360 __entry->duration,
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361 __entry->outer_duration,
362 __entry->nmi_total_ts,
363 __entry->nmi_count),
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364
365 FILTER_OTHER
366);