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/data_map.h"
61 #include "util/exec_cmd.h"
63 static char const *input_name = "perf.data";
65 static struct perf_session *session;
66 static u64 sample_type;
68 static int process_sample_event(event_t *event)
70 struct sample_data data;
71 struct thread *thread;
73 memset(&data, 0, sizeof(data));
78 event__parse_sample(event, sample_type, &data);
80 dump_printf("(IP, %d): %d/%d: %p period: %Ld\n",
83 (void *)(long)data.ip,
84 (long long)data.period);
86 thread = threads__findnew(event->ip.pid);
88 pr_debug("problem processing %d event, skipping it.\n",
93 if (sample_type & PERF_SAMPLE_RAW) {
95 * FIXME: better resolve from pid from the struct trace_entry
96 * field, although it should be the same than this perf
99 scripting_ops->process_event(data.cpu, data.raw_data,
101 data.time, thread->comm);
103 event__stats.total += data.period;
108 static int sample_type_check(u64 type)
112 if (!(sample_type & PERF_SAMPLE_RAW)) {
114 "No trace sample to read. Did you call perf record "
122 static struct perf_file_handler file_handler = {
123 .process_sample_event = process_sample_event,
124 .process_comm_event = event__process_comm,
125 .sample_type_check = sample_type_check,
128 static int __cmd_trace(void)
132 session = perf_session__new(input_name, O_RDONLY, 0);
136 register_idle_thread();
137 register_perf_file_handler(&file_handler);
139 err = perf_session__process_events(session, 0, &event__cwdlen, &event__cwd);
140 perf_session__delete(session);
145 struct list_head node;
146 struct scripting_ops *ops;
150 LIST_HEAD(script_specs);
152 static struct script_spec *script_spec__new(const char *spec,
153 struct scripting_ops *ops)
155 struct script_spec *s = malloc(sizeof(*s) + strlen(spec) + 1);
158 strcpy(s->spec, spec);
165 static void script_spec__delete(struct script_spec *s)
171 static void script_spec__add(struct script_spec *s)
173 list_add_tail(&s->node, &script_specs);
176 static struct script_spec *script_spec__find(const char *spec)
178 struct script_spec *s;
180 list_for_each_entry(s, &script_specs, node)
181 if (strcasecmp(s->spec, spec) == 0)
186 static struct script_spec *script_spec__findnew(const char *spec,
187 struct scripting_ops *ops)
189 struct script_spec *s = script_spec__find(spec);
194 s = script_spec__new(spec, ops);
196 goto out_delete_spec;
203 script_spec__delete(s);
208 int script_spec_register(const char *spec, struct scripting_ops *ops)
210 struct script_spec *s;
212 s = script_spec__find(spec);
216 s = script_spec__findnew(spec, ops);
223 static struct scripting_ops *script_spec__lookup(const char *spec)
225 struct script_spec *s = script_spec__find(spec);
232 static void list_available_languages(void)
234 struct script_spec *s;
236 fprintf(stderr, "\n");
237 fprintf(stderr, "Scripting language extensions (used in "
238 "perf trace -s [spec:]script.[spec]):\n\n");
240 list_for_each_entry(s, &script_specs, node)
241 fprintf(stderr, " %-42s [%s]\n", s->spec, s->ops->name);
243 fprintf(stderr, "\n");
246 static int parse_scriptname(const struct option *opt __used,
247 const char *str, int unset __used)
250 const char *script, *ext;
253 if (strcmp(str, "list") == 0) {
254 list_available_languages();
258 script = strchr(str, ':');
261 if (len >= PATH_MAX) {
262 fprintf(stderr, "invalid language specifier");
265 strncpy(spec, str, len);
267 scripting_ops = script_spec__lookup(spec);
268 if (!scripting_ops) {
269 fprintf(stderr, "invalid language specifier");
275 ext = strchr(script, '.');
277 fprintf(stderr, "invalid script extension");
280 scripting_ops = script_spec__lookup(++ext);
281 if (!scripting_ops) {
282 fprintf(stderr, "invalid script extension");
287 script_name = strdup(script);
292 static const char * const annotate_usage[] = {
293 "perf trace [<options>] <command>",
297 static const struct option options[] = {
298 OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
299 "dump raw trace in ASCII"),
300 OPT_BOOLEAN('v', "verbose", &verbose,
301 "be more verbose (show symbol address, etc)"),
302 OPT_BOOLEAN('l', "latency", &latency_format,
303 "show latency attributes (irqs/preemption disabled, etc)"),
304 OPT_CALLBACK('s', "script", NULL, "name",
305 "script file name (lang:script name, script name, or *)",
307 OPT_STRING('g', "gen-script", &generate_script_lang, "lang",
308 "generate perf-trace.xx script in specified language"),
313 int cmd_trace(int argc, const char **argv, const char *prefix __used)
321 argc = parse_options(argc, argv, options, annotate_usage, 0);
324 * Special case: if there's an argument left then assume tha
325 * it's a symbol filter:
328 usage_with_options(annotate_usage, options);
333 if (generate_script_lang) {
334 struct stat perf_stat;
336 int input = open(input_name, O_RDONLY);
338 perror("failed to open file");
342 err = fstat(input, &perf_stat);
344 perror("failed to stat file");
348 if (!perf_stat.st_size) {
349 fprintf(stderr, "zero-sized file, nothing to do!\n");
353 scripting_ops = script_spec__lookup(generate_script_lang);
354 if (!scripting_ops) {
355 fprintf(stderr, "invalid language specifier");
359 perf_header__read(&session->header, input);
360 err = scripting_ops->generate_script("perf-trace");
365 err = scripting_ops->start_script(script_name);