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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 | { |
180f95e2 OH |
69 | struct sample_data data; |
70 | struct thread *thread; | |
6ddf259d | 71 | |
180f95e2 OH |
72 | memset(&data, 0, sizeof(data)); |
73 | data.time = -1; | |
74 | data.cpu = -1; | |
75 | data.period = 1; | |
cd6feeea | 76 | |
180f95e2 | 77 | event__parse_sample(event, sample_type, &data); |
5f9c39dc | 78 | |
62daacb5 | 79 | dump_printf("(IP, %d): %d/%d: %p period: %Ld\n", |
5f9c39dc | 80 | event->header.misc, |
180f95e2 OH |
81 | data.pid, data.tid, |
82 | (void *)(long)data.ip, | |
83 | (long long)data.period); | |
5f9c39dc | 84 | |
180f95e2 | 85 | thread = threads__findnew(event->ip.pid); |
5f9c39dc | 86 | if (thread == NULL) { |
6beba7ad ACM |
87 | pr_debug("problem processing %d event, skipping it.\n", |
88 | event->header.type); | |
5f9c39dc FW |
89 | return -1; |
90 | } | |
91 | ||
5f9c39dc | 92 | if (sample_type & PERF_SAMPLE_RAW) { |
5f9c39dc FW |
93 | /* |
94 | * FIXME: better resolve from pid from the struct trace_entry | |
95 | * field, although it should be the same than this perf | |
96 | * event pid | |
97 | */ | |
180f95e2 OH |
98 | scripting_ops->process_event(data.cpu, data.raw_data, |
99 | data.raw_size, | |
100 | data.time, thread->comm); | |
5f9c39dc | 101 | } |
180f95e2 | 102 | event__stats.total += data.period; |
5f9c39dc FW |
103 | |
104 | return 0; | |
105 | } | |
106 | ||
016e92fb | 107 | static int sample_type_check(u64 type) |
5f9c39dc | 108 | { |
016e92fb | 109 | sample_type = type; |
5f9c39dc | 110 | |
016e92fb FW |
111 | if (!(sample_type & PERF_SAMPLE_RAW)) { |
112 | fprintf(stderr, | |
113 | "No trace sample to read. Did you call perf record " | |
114 | "without -R?"); | |
5f9c39dc FW |
115 | return -1; |
116 | } | |
117 | ||
118 | return 0; | |
119 | } | |
120 | ||
016e92fb FW |
121 | static struct perf_file_handler file_handler = { |
122 | .process_sample_event = process_sample_event, | |
62daacb5 | 123 | .process_comm_event = event__process_comm, |
016e92fb FW |
124 | .sample_type_check = sample_type_check, |
125 | }; | |
126 | ||
5f9c39dc FW |
127 | static int __cmd_trace(void) |
128 | { | |
d5b889f2 | 129 | register_idle_thread(); |
016e92fb | 130 | register_perf_file_handler(&file_handler); |
5f9c39dc | 131 | |
b32d133a | 132 | return mmap_dispatch_perf_file(&header, input_name, |
62daacb5 | 133 | 0, 0, &event__cwdlen, &event__cwd); |
5f9c39dc FW |
134 | } |
135 | ||
956ffd02 TZ |
136 | struct script_spec { |
137 | struct list_head node; | |
138 | struct scripting_ops *ops; | |
139 | char spec[0]; | |
140 | }; | |
141 | ||
142 | LIST_HEAD(script_specs); | |
143 | ||
144 | static struct script_spec *script_spec__new(const char *spec, | |
145 | struct scripting_ops *ops) | |
146 | { | |
147 | struct script_spec *s = malloc(sizeof(*s) + strlen(spec) + 1); | |
148 | ||
149 | if (s != NULL) { | |
150 | strcpy(s->spec, spec); | |
151 | s->ops = ops; | |
152 | } | |
153 | ||
154 | return s; | |
155 | } | |
156 | ||
157 | static void script_spec__delete(struct script_spec *s) | |
158 | { | |
159 | free(s->spec); | |
160 | free(s); | |
161 | } | |
162 | ||
163 | static void script_spec__add(struct script_spec *s) | |
164 | { | |
165 | list_add_tail(&s->node, &script_specs); | |
166 | } | |
167 | ||
168 | static struct script_spec *script_spec__find(const char *spec) | |
169 | { | |
170 | struct script_spec *s; | |
171 | ||
172 | list_for_each_entry(s, &script_specs, node) | |
173 | if (strcasecmp(s->spec, spec) == 0) | |
174 | return s; | |
175 | return NULL; | |
176 | } | |
177 | ||
178 | static struct script_spec *script_spec__findnew(const char *spec, | |
179 | struct scripting_ops *ops) | |
180 | { | |
181 | struct script_spec *s = script_spec__find(spec); | |
182 | ||
183 | if (s) | |
184 | return s; | |
185 | ||
186 | s = script_spec__new(spec, ops); | |
187 | if (!s) | |
188 | goto out_delete_spec; | |
189 | ||
190 | script_spec__add(s); | |
191 | ||
192 | return s; | |
193 | ||
194 | out_delete_spec: | |
195 | script_spec__delete(s); | |
196 | ||
197 | return NULL; | |
198 | } | |
199 | ||
200 | int script_spec_register(const char *spec, struct scripting_ops *ops) | |
201 | { | |
202 | struct script_spec *s; | |
203 | ||
204 | s = script_spec__find(spec); | |
205 | if (s) | |
206 | return -1; | |
207 | ||
208 | s = script_spec__findnew(spec, ops); | |
209 | if (!s) | |
210 | return -1; | |
211 | ||
212 | return 0; | |
213 | } | |
214 | ||
215 | static struct scripting_ops *script_spec__lookup(const char *spec) | |
216 | { | |
217 | struct script_spec *s = script_spec__find(spec); | |
218 | if (!s) | |
219 | return NULL; | |
220 | ||
221 | return s->ops; | |
222 | } | |
223 | ||
224 | static void list_available_languages(void) | |
225 | { | |
226 | struct script_spec *s; | |
227 | ||
228 | fprintf(stderr, "\n"); | |
229 | fprintf(stderr, "Scripting language extensions (used in " | |
230 | "perf trace -s [spec:]script.[spec]):\n\n"); | |
231 | ||
232 | list_for_each_entry(s, &script_specs, node) | |
233 | fprintf(stderr, " %-42s [%s]\n", s->spec, s->ops->name); | |
234 | ||
235 | fprintf(stderr, "\n"); | |
236 | } | |
237 | ||
238 | static int parse_scriptname(const struct option *opt __used, | |
239 | const char *str, int unset __used) | |
240 | { | |
241 | char spec[PATH_MAX]; | |
242 | const char *script, *ext; | |
243 | int len; | |
244 | ||
245 | if (strcmp(str, "list") == 0) { | |
246 | list_available_languages(); | |
247 | return 0; | |
248 | } | |
249 | ||
250 | script = strchr(str, ':'); | |
251 | if (script) { | |
252 | len = script - str; | |
253 | if (len >= PATH_MAX) { | |
254 | fprintf(stderr, "invalid language specifier"); | |
255 | return -1; | |
256 | } | |
257 | strncpy(spec, str, len); | |
258 | spec[len] = '\0'; | |
259 | scripting_ops = script_spec__lookup(spec); | |
260 | if (!scripting_ops) { | |
261 | fprintf(stderr, "invalid language specifier"); | |
262 | return -1; | |
263 | } | |
264 | script++; | |
265 | } else { | |
266 | script = str; | |
267 | ext = strchr(script, '.'); | |
268 | if (!ext) { | |
269 | fprintf(stderr, "invalid script extension"); | |
270 | return -1; | |
271 | } | |
272 | scripting_ops = script_spec__lookup(++ext); | |
273 | if (!scripting_ops) { | |
274 | fprintf(stderr, "invalid script extension"); | |
275 | return -1; | |
276 | } | |
277 | } | |
278 | ||
279 | script_name = strdup(script); | |
280 | ||
281 | return 0; | |
282 | } | |
283 | ||
5f9c39dc FW |
284 | static const char * const annotate_usage[] = { |
285 | "perf trace [<options>] <command>", | |
286 | NULL | |
287 | }; | |
288 | ||
289 | static const struct option options[] = { | |
290 | OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, | |
291 | "dump raw trace in ASCII"), | |
292 | OPT_BOOLEAN('v', "verbose", &verbose, | |
293 | "be more verbose (show symbol address, etc)"), | |
cda48461 SR |
294 | OPT_BOOLEAN('l', "latency", &latency_format, |
295 | "show latency attributes (irqs/preemption disabled, etc)"), | |
956ffd02 TZ |
296 | OPT_CALLBACK('s', "script", NULL, "name", |
297 | "script file name (lang:script name, script name, or *)", | |
298 | parse_scriptname), | |
299 | OPT_STRING('g', "gen-script", &generate_script_lang, "lang", | |
300 | "generate perf-trace.xx script in specified language"), | |
301 | ||
1909629f | 302 | OPT_END() |
5f9c39dc FW |
303 | }; |
304 | ||
305 | int cmd_trace(int argc, const char **argv, const char *prefix __used) | |
306 | { | |
956ffd02 TZ |
307 | int err; |
308 | ||
00a192b3 | 309 | symbol__init(0); |
5f9c39dc | 310 | |
956ffd02 TZ |
311 | setup_scripting(); |
312 | ||
5f9c39dc FW |
313 | argc = parse_options(argc, argv, options, annotate_usage, 0); |
314 | if (argc) { | |
315 | /* | |
316 | * Special case: if there's an argument left then assume tha | |
317 | * it's a symbol filter: | |
318 | */ | |
319 | if (argc > 1) | |
320 | usage_with_options(annotate_usage, options); | |
321 | } | |
322 | ||
5f9c39dc FW |
323 | setup_pager(); |
324 | ||
956ffd02 TZ |
325 | if (generate_script_lang) { |
326 | struct stat perf_stat; | |
327 | ||
328 | int input = open(input_name, O_RDONLY); | |
329 | if (input < 0) { | |
330 | perror("failed to open file"); | |
331 | exit(-1); | |
332 | } | |
333 | ||
334 | err = fstat(input, &perf_stat); | |
335 | if (err < 0) { | |
336 | perror("failed to stat file"); | |
337 | exit(-1); | |
338 | } | |
339 | ||
340 | if (!perf_stat.st_size) { | |
341 | fprintf(stderr, "zero-sized file, nothing to do!\n"); | |
342 | exit(0); | |
343 | } | |
344 | ||
345 | scripting_ops = script_spec__lookup(generate_script_lang); | |
346 | if (!scripting_ops) { | |
347 | fprintf(stderr, "invalid language specifier"); | |
348 | return -1; | |
349 | } | |
350 | ||
351 | header = perf_header__new(); | |
352 | if (header == NULL) | |
353 | return -1; | |
354 | ||
355 | perf_header__read(header, input); | |
356 | err = scripting_ops->generate_script("perf-trace"); | |
357 | goto out; | |
358 | } | |
359 | ||
360 | if (script_name) { | |
361 | err = scripting_ops->start_script(script_name); | |
362 | if (err) | |
363 | goto out; | |
364 | } | |
365 | ||
366 | err = __cmd_trace(); | |
367 | ||
368 | cleanup_scripting(); | |
369 | out: | |
370 | return err; | |
5f9c39dc | 371 | } |