4 #include "util/cache.h"
5 #include "util/symbol.h"
6 #include "util/thread.h"
7 #include "util/header.h"
8 #include "util/exec_cmd.h"
9 #include "util/trace-event.h"
10 #include "util/session.h"
12 static char const *script_name;
13 static char const *generate_script_lang;
15 static int default_start_script(const char *script __attribute((unused)))
20 static int default_stop_script(void)
25 static int default_generate_script(const char *outfile __attribute ((unused)))
30 static struct scripting_ops default_scripting_ops = {
31 .start_script = default_start_script,
32 .stop_script = default_stop_script,
33 .process_event = print_event,
34 .generate_script = default_generate_script,
37 static struct scripting_ops *scripting_ops;
39 static void setup_scripting(void)
41 /* make sure PERF_EXEC_PATH is set for scripts */
42 perf_set_argv_exec_path(perf_exec_path());
44 setup_perl_scripting();
46 scripting_ops = &default_scripting_ops;
49 static int cleanup_scripting(void)
51 return scripting_ops->stop_script();
54 #include "util/parse-options.h"
57 #include "util/debug.h"
59 #include "util/trace-event.h"
60 #include "util/exec_cmd.h"
62 static char const *input_name = "perf.data";
64 static u64 sample_type;
66 static int process_sample_event(event_t *event, struct perf_session *session __used)
68 struct sample_data data;
69 struct thread *thread;
71 memset(&data, 0, sizeof(data));
76 event__parse_sample(event, sample_type, &data);
78 dump_printf("(IP, %d): %d/%d: %p period: %Ld\n",
81 (void *)(long)data.ip,
82 (long long)data.period);
84 thread = threads__findnew(event->ip.pid);
86 pr_debug("problem processing %d event, skipping it.\n",
91 if (sample_type & PERF_SAMPLE_RAW) {
93 * FIXME: better resolve from pid from the struct trace_entry
94 * field, although it should be the same than this perf
97 scripting_ops->process_event(data.cpu, data.raw_data,
99 data.time, thread->comm);
101 event__stats.total += data.period;
106 static int sample_type_check(u64 type)
110 if (!(sample_type & PERF_SAMPLE_RAW)) {
112 "No trace sample to read. Did you call perf record "
120 static struct perf_event_ops event_ops = {
121 .process_sample_event = process_sample_event,
122 .process_comm_event = event__process_comm,
123 .sample_type_check = sample_type_check,
126 static int __cmd_trace(struct perf_session *session)
128 return perf_session__process_events(session, &event_ops);
132 struct list_head node;
133 struct scripting_ops *ops;
137 LIST_HEAD(script_specs);
139 static struct script_spec *script_spec__new(const char *spec,
140 struct scripting_ops *ops)
142 struct script_spec *s = malloc(sizeof(*s) + strlen(spec) + 1);
145 strcpy(s->spec, spec);
152 static void script_spec__delete(struct script_spec *s)
158 static void script_spec__add(struct script_spec *s)
160 list_add_tail(&s->node, &script_specs);
163 static struct script_spec *script_spec__find(const char *spec)
165 struct script_spec *s;
167 list_for_each_entry(s, &script_specs, node)
168 if (strcasecmp(s->spec, spec) == 0)
173 static struct script_spec *script_spec__findnew(const char *spec,
174 struct scripting_ops *ops)
176 struct script_spec *s = script_spec__find(spec);
181 s = script_spec__new(spec, ops);
183 goto out_delete_spec;
190 script_spec__delete(s);
195 int script_spec_register(const char *spec, struct scripting_ops *ops)
197 struct script_spec *s;
199 s = script_spec__find(spec);
203 s = script_spec__findnew(spec, ops);
210 static struct scripting_ops *script_spec__lookup(const char *spec)
212 struct script_spec *s = script_spec__find(spec);
219 static void list_available_languages(void)
221 struct script_spec *s;
223 fprintf(stderr, "\n");
224 fprintf(stderr, "Scripting language extensions (used in "
225 "perf trace -s [spec:]script.[spec]):\n\n");
227 list_for_each_entry(s, &script_specs, node)
228 fprintf(stderr, " %-42s [%s]\n", s->spec, s->ops->name);
230 fprintf(stderr, "\n");
233 static int parse_scriptname(const struct option *opt __used,
234 const char *str, int unset __used)
237 const char *script, *ext;
240 if (strcmp(str, "list") == 0) {
241 list_available_languages();
245 script = strchr(str, ':');
248 if (len >= PATH_MAX) {
249 fprintf(stderr, "invalid language specifier");
252 strncpy(spec, str, len);
254 scripting_ops = script_spec__lookup(spec);
255 if (!scripting_ops) {
256 fprintf(stderr, "invalid language specifier");
262 ext = strchr(script, '.');
264 fprintf(stderr, "invalid script extension");
267 scripting_ops = script_spec__lookup(++ext);
268 if (!scripting_ops) {
269 fprintf(stderr, "invalid script extension");
274 script_name = strdup(script);
279 static const char * const annotate_usage[] = {
280 "perf trace [<options>] <command>",
284 static const struct option options[] = {
285 OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
286 "dump raw trace in ASCII"),
287 OPT_BOOLEAN('v', "verbose", &verbose,
288 "be more verbose (show symbol address, etc)"),
289 OPT_BOOLEAN('l', "latency", &latency_format,
290 "show latency attributes (irqs/preemption disabled, etc)"),
291 OPT_CALLBACK('s', "script", NULL, "name",
292 "script file name (lang:script name, script name, or *)",
294 OPT_STRING('g', "gen-script", &generate_script_lang, "lang",
295 "generate perf-trace.xx script in specified language"),
300 int cmd_trace(int argc, const char **argv, const char *prefix __used)
303 struct perf_session *session;
309 argc = parse_options(argc, argv, options, annotate_usage, 0);
312 * Special case: if there's an argument left then assume tha
313 * it's a symbol filter:
316 usage_with_options(annotate_usage, options);
321 session = perf_session__new(input_name, O_RDONLY, 0);
325 if (generate_script_lang) {
326 struct stat perf_stat;
328 int input = open(input_name, O_RDONLY);
330 perror("failed to open file");
334 err = fstat(input, &perf_stat);
336 perror("failed to stat file");
340 if (!perf_stat.st_size) {
341 fprintf(stderr, "zero-sized file, nothing to do!\n");
345 scripting_ops = script_spec__lookup(generate_script_lang);
346 if (!scripting_ops) {
347 fprintf(stderr, "invalid language specifier");
351 perf_header__read(&session->header, input);
352 err = scripting_ops->generate_script("perf-trace");
357 err = scripting_ops->start_script(script_name);
362 err = __cmd_trace(session);
364 perf_session__delete(session);