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 int process_sample_event(event_t
*event
, struct perf_session
*session
)
66 struct sample_data data
;
67 struct thread
*thread
;
69 memset(&data
, 0, sizeof(data
));
74 event__parse_sample(event
, session
->sample_type
, &data
);
76 dump_printf("(IP, %d): %d/%d: %p period: %Ld\n",
79 (void *)(long)data
.ip
,
80 (long long)data
.period
);
82 thread
= perf_session__findnew(session
, event
->ip
.pid
);
84 pr_debug("problem processing %d event, skipping it.\n",
89 if (session
->sample_type
& PERF_SAMPLE_RAW
) {
91 * FIXME: better resolve from pid from the struct trace_entry
92 * field, although it should be the same than this perf
95 scripting_ops
->process_event(data
.cpu
, data
.raw_data
,
97 data
.time
, thread
->comm
);
99 event__stats
.total
+= data
.period
;
104 static int sample_type_check(struct perf_session
*session
)
106 if (!(session
->sample_type
& PERF_SAMPLE_RAW
)) {
108 "No trace sample to read. Did you call perf record "
116 static struct perf_event_ops event_ops
= {
117 .process_sample_event
= process_sample_event
,
118 .process_comm_event
= event__process_comm
,
119 .sample_type_check
= sample_type_check
,
122 static int __cmd_trace(struct perf_session
*session
)
124 return perf_session__process_events(session
, &event_ops
);
128 struct list_head node
;
129 struct scripting_ops
*ops
;
133 LIST_HEAD(script_specs
);
135 static struct script_spec
*script_spec__new(const char *spec
,
136 struct scripting_ops
*ops
)
138 struct script_spec
*s
= malloc(sizeof(*s
) + strlen(spec
) + 1);
141 strcpy(s
->spec
, spec
);
148 static void script_spec__delete(struct script_spec
*s
)
154 static void script_spec__add(struct script_spec
*s
)
156 list_add_tail(&s
->node
, &script_specs
);
159 static struct script_spec
*script_spec__find(const char *spec
)
161 struct script_spec
*s
;
163 list_for_each_entry(s
, &script_specs
, node
)
164 if (strcasecmp(s
->spec
, spec
) == 0)
169 static struct script_spec
*script_spec__findnew(const char *spec
,
170 struct scripting_ops
*ops
)
172 struct script_spec
*s
= script_spec__find(spec
);
177 s
= script_spec__new(spec
, ops
);
179 goto out_delete_spec
;
186 script_spec__delete(s
);
191 int script_spec_register(const char *spec
, struct scripting_ops
*ops
)
193 struct script_spec
*s
;
195 s
= script_spec__find(spec
);
199 s
= script_spec__findnew(spec
, ops
);
206 static struct scripting_ops
*script_spec__lookup(const char *spec
)
208 struct script_spec
*s
= script_spec__find(spec
);
215 static void list_available_languages(void)
217 struct script_spec
*s
;
219 fprintf(stderr
, "\n");
220 fprintf(stderr
, "Scripting language extensions (used in "
221 "perf trace -s [spec:]script.[spec]):\n\n");
223 list_for_each_entry(s
, &script_specs
, node
)
224 fprintf(stderr
, " %-42s [%s]\n", s
->spec
, s
->ops
->name
);
226 fprintf(stderr
, "\n");
229 static int parse_scriptname(const struct option
*opt __used
,
230 const char *str
, int unset __used
)
233 const char *script
, *ext
;
236 if (strcmp(str
, "list") == 0) {
237 list_available_languages();
241 script
= strchr(str
, ':');
244 if (len
>= PATH_MAX
) {
245 fprintf(stderr
, "invalid language specifier");
248 strncpy(spec
, str
, len
);
250 scripting_ops
= script_spec__lookup(spec
);
251 if (!scripting_ops
) {
252 fprintf(stderr
, "invalid language specifier");
258 ext
= strchr(script
, '.');
260 fprintf(stderr
, "invalid script extension");
263 scripting_ops
= script_spec__lookup(++ext
);
264 if (!scripting_ops
) {
265 fprintf(stderr
, "invalid script extension");
270 script_name
= strdup(script
);
275 static const char * const annotate_usage
[] = {
276 "perf trace [<options>] <command>",
280 static const struct option options
[] = {
281 OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace
,
282 "dump raw trace in ASCII"),
283 OPT_BOOLEAN('v', "verbose", &verbose
,
284 "be more verbose (show symbol address, etc)"),
285 OPT_BOOLEAN('l', "latency", &latency_format
,
286 "show latency attributes (irqs/preemption disabled, etc)"),
287 OPT_CALLBACK('s', "script", NULL
, "name",
288 "script file name (lang:script name, script name, or *)",
290 OPT_STRING('g', "gen-script", &generate_script_lang
, "lang",
291 "generate perf-trace.xx script in specified language"),
296 int cmd_trace(int argc
, const char **argv
, const char *prefix __used
)
299 struct perf_session
*session
;
305 argc
= parse_options(argc
, argv
, options
, annotate_usage
, 0);
308 * Special case: if there's an argument left then assume tha
309 * it's a symbol filter:
312 usage_with_options(annotate_usage
, options
);
317 session
= perf_session__new(input_name
, O_RDONLY
, 0, NULL
);
321 if (generate_script_lang
) {
322 struct stat perf_stat
;
324 int input
= open(input_name
, O_RDONLY
);
326 perror("failed to open file");
330 err
= fstat(input
, &perf_stat
);
332 perror("failed to stat file");
336 if (!perf_stat
.st_size
) {
337 fprintf(stderr
, "zero-sized file, nothing to do!\n");
341 scripting_ops
= script_spec__lookup(generate_script_lang
);
342 if (!scripting_ops
) {
343 fprintf(stderr
, "invalid language specifier");
347 perf_header__read(&session
->header
, input
);
348 err
= scripting_ops
->generate_script("perf-trace");
353 err
= scripting_ops
->start_script(script_name
);
358 err
= __cmd_trace(session
);
360 perf_session__delete(session
);