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git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/blob - tools/perf/util/trace-event-parse.c
2 * Copyright (C) 2009, Steven Rostedt <srostedt@redhat.com>
4 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; version 2 of the License (not later!)
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
29 #include "trace-event.h"
31 static int get_common_field(struct scripting_context
*context
,
32 int *offset
, int *size
, const char *type
)
34 struct pevent
*pevent
= context
->pevent
;
35 struct event_format
*event
;
36 struct format_field
*field
;
42 event
= pevent
->events
[0];
43 field
= pevent_find_common_field(event
, type
);
46 *offset
= field
->offset
;
50 return pevent_read_number(pevent
, context
->event_data
+ *offset
, *size
);
53 int common_lock_depth(struct scripting_context
*context
)
59 ret
= get_common_field(context
, &size
, &offset
,
67 int common_flags(struct scripting_context
*context
)
73 ret
= get_common_field(context
, &size
, &offset
,
81 int common_pc(struct scripting_context
*context
)
87 ret
= get_common_field(context
, &size
, &offset
,
88 "common_preempt_count");
96 raw_field_value(struct event_format
*event
, const char *name
, void *data
)
98 struct format_field
*field
;
99 unsigned long long val
;
101 field
= pevent_find_any_field(event
, name
);
105 pevent_read_number_field(field
, data
, &val
);
110 unsigned long long read_size(struct event_format
*event
, void *ptr
, int size
)
112 return pevent_read_number(event
->pevent
, ptr
, size
);
115 void event_format__fprintf(struct event_format
*event
,
116 int cpu
, void *data
, int size
, FILE *fp
)
118 struct pevent_record record
;
121 memset(&record
, 0, sizeof(record
));
127 pevent_event_info(&s
, event
, &record
);
128 trace_seq_do_fprintf(&s
, fp
);
129 trace_seq_destroy(&s
);
132 void event_format__print(struct event_format
*event
,
133 int cpu
, void *data
, int size
)
135 return event_format__fprintf(event
, cpu
, data
, size
, stdout
);
138 void parse_proc_kallsyms(struct pevent
*pevent
,
139 char *file
, unsigned int size __maybe_unused
)
141 unsigned long long addr
;
149 line
= strtok_r(file
, "\n", &next
);
152 addr_str
= strtok_r(line
, " ", &fmt
);
153 addr
= strtoull(addr_str
, NULL
, 16);
155 strtok_r(NULL
, " ", &fmt
);
156 func
= strtok_r(NULL
, "\t", &fmt
);
157 mod
= strtok_r(NULL
, "]", &fmt
);
158 /* truncate the extra '[' */
162 pevent_register_function(pevent
, func
, addr
, mod
);
164 line
= strtok_r(NULL
, "\n", &next
);
168 void parse_ftrace_printk(struct pevent
*pevent
,
169 char *file
, unsigned int size __maybe_unused
)
171 unsigned long long addr
;
178 line
= strtok_r(file
, "\n", &next
);
180 addr_str
= strtok_r(line
, ":", &fmt
);
182 warning("printk format with empty entry");
185 addr
= strtoull(addr_str
, NULL
, 16);
186 /* fmt still has a space, skip it */
187 printk
= strdup(fmt
+1);
188 line
= strtok_r(NULL
, "\n", &next
);
189 pevent_register_print_string(pevent
, printk
, addr
);
193 int parse_ftrace_file(struct pevent
*pevent
, char *buf
, unsigned long size
)
195 return pevent_parse_event(pevent
, buf
, size
, "ftrace");
198 int parse_event_file(struct pevent
*pevent
,
199 char *buf
, unsigned long size
, char *sys
)
201 return pevent_parse_event(pevent
, buf
, size
, sys
);
204 struct event_format
*trace_find_next_event(struct pevent
*pevent
,
205 struct event_format
*event
)
209 if (!pevent
|| !pevent
->events
)
214 return pevent
->events
[0];
217 if (idx
< pevent
->nr_events
&& event
== pevent
->events
[idx
]) {
219 if (idx
== pevent
->nr_events
)
221 return pevent
->events
[idx
];
224 for (idx
= 1; idx
< pevent
->nr_events
; idx
++) {
225 if (event
== pevent
->events
[idx
- 1])
226 return pevent
->events
[idx
];
233 unsigned long long value
;
236 static const struct flag flags
[] = {
238 { "TIMER_SOFTIRQ", 1 },
239 { "NET_TX_SOFTIRQ", 2 },
240 { "NET_RX_SOFTIRQ", 3 },
241 { "BLOCK_SOFTIRQ", 4 },
242 { "BLOCK_IOPOLL_SOFTIRQ", 5 },
243 { "TASKLET_SOFTIRQ", 6 },
244 { "SCHED_SOFTIRQ", 7 },
245 { "HRTIMER_SOFTIRQ", 8 },
246 { "RCU_SOFTIRQ", 9 },
248 { "HRTIMER_NORESTART", 0 },
249 { "HRTIMER_RESTART", 1 },
252 unsigned long long eval_flag(const char *flag
)
257 * Some flags in the format files do not get converted.
258 * If the flag is not numeric, see if it is something that
259 * we already know about.
261 if (isdigit(flag
[0]))
262 return strtoull(flag
, NULL
, 0);
264 for (i
= 0; i
< (int)(sizeof(flags
)/sizeof(flags
[0])); i
++)
265 if (strcmp(flags
[i
].name
, flag
) == 0)
266 return flags
[i
].value
;