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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 *
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
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("%08lx fmt:%p",
227 __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("%08lx %s",
242 __entry->ip, __entry->buf),
243
244 FILTER_OTHER
245);
246
247FTRACE_ENTRY(mmiotrace_rw, trace_mmiotrace_rw,
248
249 TRACE_MMIO_RW,
250
251 F_STRUCT(
252 __field_struct( struct mmiotrace_rw, rw )
253 __field_desc( resource_size_t, rw, phys )
254 __field_desc( unsigned long, rw, value )
255 __field_desc( unsigned long, rw, pc )
256 __field_desc( int, rw, map_id )
257 __field_desc( unsigned char, rw, opcode )
258 __field_desc( unsigned char, rw, width )
259 ),
260
261 F_printk("%lx %lx %lx %d %x %x",
262 (unsigned long)__entry->phys, __entry->value, __entry->pc,
263 __entry->map_id, __entry->opcode, __entry->width),
264
265 FILTER_OTHER
266);
267
268FTRACE_ENTRY(mmiotrace_map, trace_mmiotrace_map,
269
270 TRACE_MMIO_MAP,
271
272 F_STRUCT(
273 __field_struct( struct mmiotrace_map, map )
274 __field_desc( resource_size_t, map, phys )
275 __field_desc( unsigned long, map, virt )
276 __field_desc( unsigned long, map, len )
277 __field_desc( int, map, map_id )
278 __field_desc( unsigned char, map, opcode )
279 ),
280
281 F_printk("%lx %lx %lx %d %x",
282 (unsigned long)__entry->phys, __entry->virt, __entry->len,
283 __entry->map_id, __entry->opcode),
284
285 FILTER_OTHER
286);
287
288
289#define TRACE_FUNC_SIZE 30
290#define TRACE_FILE_SIZE 20
291
292FTRACE_ENTRY(branch, trace_branch,
293
294 TRACE_BRANCH,
295
296 F_STRUCT(
297 __field( unsigned int, line )
298 __array( char, func, TRACE_FUNC_SIZE+1 )
299 __array( char, file, TRACE_FILE_SIZE+1 )
300 __field( char, correct )
301 ),
302
303 F_printk("%u:%s:%s (%u)",
304 __entry->line,
305 __entry->func, __entry->file, __entry->correct),
306
307 FILTER_OTHER
308);
309