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Commit | Line | Data |
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5f9c39dc FW |
1 | #include "builtin.h" |
2 | ||
3 | #include "util/util.h" | |
4 | #include "util/cache.h" | |
5 | #include "util/symbol.h" | |
6 | #include "util/thread.h" | |
7 | #include "util/header.h" | |
cf72344d IM |
8 | #include "util/exec_cmd.h" |
9 | #include "util/trace-event.h" | |
5f9c39dc | 10 | |
956ffd02 TZ |
11 | static char const *script_name; |
12 | static char const *generate_script_lang; | |
13 | ||
14 | static int default_start_script(const char *script __attribute((unused))) | |
15 | { | |
16 | return 0; | |
17 | } | |
18 | ||
19 | static int default_stop_script(void) | |
20 | { | |
21 | return 0; | |
22 | } | |
23 | ||
24 | static int default_generate_script(const char *outfile __attribute ((unused))) | |
25 | { | |
26 | return 0; | |
27 | } | |
28 | ||
29 | static struct scripting_ops default_scripting_ops = { | |
30 | .start_script = default_start_script, | |
31 | .stop_script = default_stop_script, | |
32 | .process_event = print_event, | |
33 | .generate_script = default_generate_script, | |
34 | }; | |
35 | ||
36 | static struct scripting_ops *scripting_ops; | |
37 | ||
38 | static void setup_scripting(void) | |
39 | { | |
40 | /* make sure PERF_EXEC_PATH is set for scripts */ | |
41 | perf_set_argv_exec_path(perf_exec_path()); | |
42 | ||
16c632de TZ |
43 | setup_perl_scripting(); |
44 | ||
956ffd02 TZ |
45 | scripting_ops = &default_scripting_ops; |
46 | } | |
47 | ||
48 | static int cleanup_scripting(void) | |
49 | { | |
50 | return scripting_ops->stop_script(); | |
51 | } | |
52 | ||
5f9c39dc FW |
53 | #include "util/parse-options.h" |
54 | ||
55 | #include "perf.h" | |
56 | #include "util/debug.h" | |
57 | ||
58 | #include "util/trace-event.h" | |
016e92fb | 59 | #include "util/data_map.h" |
956ffd02 | 60 | #include "util/exec_cmd.h" |
5f9c39dc | 61 | |
956ffd02 | 62 | static char const *input_name = "perf.data"; |
5f9c39dc | 63 | |
956ffd02 TZ |
64 | static struct perf_header *header; |
65 | static u64 sample_type; | |
5f9c39dc | 66 | |
62daacb5 | 67 | static int process_sample_event(event_t *event) |
5f9c39dc | 68 | { |
5f9c39dc | 69 | u64 ip = event->ip.ip; |
6ddf259d | 70 | u64 timestamp = -1; |
cd6feeea | 71 | u32 cpu = -1; |
5f9c39dc FW |
72 | u64 period = 1; |
73 | void *more_data = event->ip.__more_data; | |
d5b889f2 | 74 | struct thread *thread = threads__findnew(event->ip.pid); |
5f9c39dc | 75 | |
6ddf259d IM |
76 | if (sample_type & PERF_SAMPLE_TIME) { |
77 | timestamp = *(u64 *)more_data; | |
78 | more_data += sizeof(u64); | |
79 | } | |
80 | ||
cd6feeea IM |
81 | if (sample_type & PERF_SAMPLE_CPU) { |
82 | cpu = *(u32 *)more_data; | |
83 | more_data += sizeof(u32); | |
84 | more_data += sizeof(u32); /* reserved */ | |
85 | } | |
86 | ||
5f9c39dc FW |
87 | if (sample_type & PERF_SAMPLE_PERIOD) { |
88 | period = *(u64 *)more_data; | |
89 | more_data += sizeof(u64); | |
90 | } | |
91 | ||
62daacb5 | 92 | dump_printf("(IP, %d): %d/%d: %p period: %Ld\n", |
5f9c39dc FW |
93 | event->header.misc, |
94 | event->ip.pid, event->ip.tid, | |
95 | (void *)(long)ip, | |
96 | (long long)period); | |
97 | ||
5f9c39dc | 98 | if (thread == NULL) { |
6beba7ad ACM |
99 | pr_debug("problem processing %d event, skipping it.\n", |
100 | event->header.type); | |
5f9c39dc FW |
101 | return -1; |
102 | } | |
103 | ||
f39cdf25 JL |
104 | dump_printf(" ... thread: %s:%d\n", thread->comm, thread->pid); |
105 | ||
5f9c39dc FW |
106 | if (sample_type & PERF_SAMPLE_RAW) { |
107 | struct { | |
108 | u32 size; | |
109 | char data[0]; | |
110 | } *raw = more_data; | |
111 | ||
112 | /* | |
113 | * FIXME: better resolve from pid from the struct trace_entry | |
114 | * field, although it should be the same than this perf | |
115 | * event pid | |
116 | */ | |
956ffd02 TZ |
117 | scripting_ops->process_event(cpu, raw->data, raw->size, |
118 | timestamp, thread->comm); | |
5f9c39dc | 119 | } |
62daacb5 | 120 | event__stats.total += period; |
5f9c39dc FW |
121 | |
122 | return 0; | |
123 | } | |
124 | ||
016e92fb | 125 | static int sample_type_check(u64 type) |
5f9c39dc | 126 | { |
016e92fb | 127 | sample_type = type; |
5f9c39dc | 128 | |
016e92fb FW |
129 | if (!(sample_type & PERF_SAMPLE_RAW)) { |
130 | fprintf(stderr, | |
131 | "No trace sample to read. Did you call perf record " | |
132 | "without -R?"); | |
5f9c39dc FW |
133 | return -1; |
134 | } | |
135 | ||
136 | return 0; | |
137 | } | |
138 | ||
016e92fb FW |
139 | static struct perf_file_handler file_handler = { |
140 | .process_sample_event = process_sample_event, | |
62daacb5 | 141 | .process_comm_event = event__process_comm, |
016e92fb FW |
142 | .sample_type_check = sample_type_check, |
143 | }; | |
144 | ||
5f9c39dc FW |
145 | static int __cmd_trace(void) |
146 | { | |
d5b889f2 | 147 | register_idle_thread(); |
016e92fb | 148 | register_perf_file_handler(&file_handler); |
5f9c39dc | 149 | |
b32d133a | 150 | return mmap_dispatch_perf_file(&header, input_name, |
62daacb5 | 151 | 0, 0, &event__cwdlen, &event__cwd); |
5f9c39dc FW |
152 | } |
153 | ||
956ffd02 TZ |
154 | struct script_spec { |
155 | struct list_head node; | |
156 | struct scripting_ops *ops; | |
157 | char spec[0]; | |
158 | }; | |
159 | ||
160 | LIST_HEAD(script_specs); | |
161 | ||
162 | static struct script_spec *script_spec__new(const char *spec, | |
163 | struct scripting_ops *ops) | |
164 | { | |
165 | struct script_spec *s = malloc(sizeof(*s) + strlen(spec) + 1); | |
166 | ||
167 | if (s != NULL) { | |
168 | strcpy(s->spec, spec); | |
169 | s->ops = ops; | |
170 | } | |
171 | ||
172 | return s; | |
173 | } | |
174 | ||
175 | static void script_spec__delete(struct script_spec *s) | |
176 | { | |
177 | free(s->spec); | |
178 | free(s); | |
179 | } | |
180 | ||
181 | static void script_spec__add(struct script_spec *s) | |
182 | { | |
183 | list_add_tail(&s->node, &script_specs); | |
184 | } | |
185 | ||
186 | static struct script_spec *script_spec__find(const char *spec) | |
187 | { | |
188 | struct script_spec *s; | |
189 | ||
190 | list_for_each_entry(s, &script_specs, node) | |
191 | if (strcasecmp(s->spec, spec) == 0) | |
192 | return s; | |
193 | return NULL; | |
194 | } | |
195 | ||
196 | static struct script_spec *script_spec__findnew(const char *spec, | |
197 | struct scripting_ops *ops) | |
198 | { | |
199 | struct script_spec *s = script_spec__find(spec); | |
200 | ||
201 | if (s) | |
202 | return s; | |
203 | ||
204 | s = script_spec__new(spec, ops); | |
205 | if (!s) | |
206 | goto out_delete_spec; | |
207 | ||
208 | script_spec__add(s); | |
209 | ||
210 | return s; | |
211 | ||
212 | out_delete_spec: | |
213 | script_spec__delete(s); | |
214 | ||
215 | return NULL; | |
216 | } | |
217 | ||
218 | int script_spec_register(const char *spec, struct scripting_ops *ops) | |
219 | { | |
220 | struct script_spec *s; | |
221 | ||
222 | s = script_spec__find(spec); | |
223 | if (s) | |
224 | return -1; | |
225 | ||
226 | s = script_spec__findnew(spec, ops); | |
227 | if (!s) | |
228 | return -1; | |
229 | ||
230 | return 0; | |
231 | } | |
232 | ||
233 | static struct scripting_ops *script_spec__lookup(const char *spec) | |
234 | { | |
235 | struct script_spec *s = script_spec__find(spec); | |
236 | if (!s) | |
237 | return NULL; | |
238 | ||
239 | return s->ops; | |
240 | } | |
241 | ||
242 | static void list_available_languages(void) | |
243 | { | |
244 | struct script_spec *s; | |
245 | ||
246 | fprintf(stderr, "\n"); | |
247 | fprintf(stderr, "Scripting language extensions (used in " | |
248 | "perf trace -s [spec:]script.[spec]):\n\n"); | |
249 | ||
250 | list_for_each_entry(s, &script_specs, node) | |
251 | fprintf(stderr, " %-42s [%s]\n", s->spec, s->ops->name); | |
252 | ||
253 | fprintf(stderr, "\n"); | |
254 | } | |
255 | ||
256 | static int parse_scriptname(const struct option *opt __used, | |
257 | const char *str, int unset __used) | |
258 | { | |
259 | char spec[PATH_MAX]; | |
260 | const char *script, *ext; | |
261 | int len; | |
262 | ||
263 | if (strcmp(str, "list") == 0) { | |
264 | list_available_languages(); | |
265 | return 0; | |
266 | } | |
267 | ||
268 | script = strchr(str, ':'); | |
269 | if (script) { | |
270 | len = script - str; | |
271 | if (len >= PATH_MAX) { | |
272 | fprintf(stderr, "invalid language specifier"); | |
273 | return -1; | |
274 | } | |
275 | strncpy(spec, str, len); | |
276 | spec[len] = '\0'; | |
277 | scripting_ops = script_spec__lookup(spec); | |
278 | if (!scripting_ops) { | |
279 | fprintf(stderr, "invalid language specifier"); | |
280 | return -1; | |
281 | } | |
282 | script++; | |
283 | } else { | |
284 | script = str; | |
285 | ext = strchr(script, '.'); | |
286 | if (!ext) { | |
287 | fprintf(stderr, "invalid script extension"); | |
288 | return -1; | |
289 | } | |
290 | scripting_ops = script_spec__lookup(++ext); | |
291 | if (!scripting_ops) { | |
292 | fprintf(stderr, "invalid script extension"); | |
293 | return -1; | |
294 | } | |
295 | } | |
296 | ||
297 | script_name = strdup(script); | |
298 | ||
299 | return 0; | |
300 | } | |
301 | ||
5f9c39dc FW |
302 | static const char * const annotate_usage[] = { |
303 | "perf trace [<options>] <command>", | |
304 | NULL | |
305 | }; | |
306 | ||
307 | static const struct option options[] = { | |
308 | OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, | |
309 | "dump raw trace in ASCII"), | |
310 | OPT_BOOLEAN('v', "verbose", &verbose, | |
311 | "be more verbose (show symbol address, etc)"), | |
cda48461 SR |
312 | OPT_BOOLEAN('l', "latency", &latency_format, |
313 | "show latency attributes (irqs/preemption disabled, etc)"), | |
956ffd02 TZ |
314 | OPT_CALLBACK('s', "script", NULL, "name", |
315 | "script file name (lang:script name, script name, or *)", | |
316 | parse_scriptname), | |
317 | OPT_STRING('g', "gen-script", &generate_script_lang, "lang", | |
318 | "generate perf-trace.xx script in specified language"), | |
319 | ||
1909629f | 320 | OPT_END() |
5f9c39dc FW |
321 | }; |
322 | ||
323 | int cmd_trace(int argc, const char **argv, const char *prefix __used) | |
324 | { | |
956ffd02 TZ |
325 | int err; |
326 | ||
00a192b3 | 327 | symbol__init(0); |
5f9c39dc | 328 | |
956ffd02 TZ |
329 | setup_scripting(); |
330 | ||
5f9c39dc FW |
331 | argc = parse_options(argc, argv, options, annotate_usage, 0); |
332 | if (argc) { | |
333 | /* | |
334 | * Special case: if there's an argument left then assume tha | |
335 | * it's a symbol filter: | |
336 | */ | |
337 | if (argc > 1) | |
338 | usage_with_options(annotate_usage, options); | |
339 | } | |
340 | ||
5f9c39dc FW |
341 | setup_pager(); |
342 | ||
956ffd02 TZ |
343 | if (generate_script_lang) { |
344 | struct stat perf_stat; | |
345 | ||
346 | int input = open(input_name, O_RDONLY); | |
347 | if (input < 0) { | |
348 | perror("failed to open file"); | |
349 | exit(-1); | |
350 | } | |
351 | ||
352 | err = fstat(input, &perf_stat); | |
353 | if (err < 0) { | |
354 | perror("failed to stat file"); | |
355 | exit(-1); | |
356 | } | |
357 | ||
358 | if (!perf_stat.st_size) { | |
359 | fprintf(stderr, "zero-sized file, nothing to do!\n"); | |
360 | exit(0); | |
361 | } | |
362 | ||
363 | scripting_ops = script_spec__lookup(generate_script_lang); | |
364 | if (!scripting_ops) { | |
365 | fprintf(stderr, "invalid language specifier"); | |
366 | return -1; | |
367 | } | |
368 | ||
369 | header = perf_header__new(); | |
370 | if (header == NULL) | |
371 | return -1; | |
372 | ||
373 | perf_header__read(header, input); | |
374 | err = scripting_ops->generate_script("perf-trace"); | |
375 | goto out; | |
376 | } | |
377 | ||
378 | if (script_name) { | |
379 | err = scripting_ops->start_script(script_name); | |
380 | if (err) | |
381 | goto out; | |
382 | } | |
383 | ||
384 | err = __cmd_trace(); | |
385 | ||
386 | cleanup_scripting(); | |
387 | out: | |
388 | return err; | |
5f9c39dc | 389 | } |