| #include "builtin.h" |
| |
| #include "perf.h" |
| #include "util/cache.h" |
| #include "util/debug.h" |
| #include "util/exec_cmd.h" |
| #include "util/header.h" |
| #include "util/parse-options.h" |
| #include "util/session.h" |
| #include "util/tool.h" |
| #include "util/symbol.h" |
| #include "util/thread.h" |
| #include "util/trace-event.h" |
| #include "util/util.h" |
| #include "util/evlist.h" |
| #include "util/evsel.h" |
| #include "util/sort.h" |
| #include "util/data.h" |
| #include <linux/bitmap.h> |
| |
| static char const *script_name; |
| static char const *generate_script_lang; |
| static bool debug_mode; |
| static u64 last_timestamp; |
| static u64 nr_unordered; |
| static bool no_callchain; |
| static bool latency_format; |
| static bool system_wide; |
| static const char *cpu_list; |
| static DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS); |
| |
| enum perf_output_field { |
| PERF_OUTPUT_COMM = 1U << 0, |
| PERF_OUTPUT_TID = 1U << 1, |
| PERF_OUTPUT_PID = 1U << 2, |
| PERF_OUTPUT_TIME = 1U << 3, |
| PERF_OUTPUT_CPU = 1U << 4, |
| PERF_OUTPUT_EVNAME = 1U << 5, |
| PERF_OUTPUT_TRACE = 1U << 6, |
| PERF_OUTPUT_IP = 1U << 7, |
| PERF_OUTPUT_SYM = 1U << 8, |
| PERF_OUTPUT_DSO = 1U << 9, |
| PERF_OUTPUT_ADDR = 1U << 10, |
| PERF_OUTPUT_SYMOFFSET = 1U << 11, |
| PERF_OUTPUT_SRCLINE = 1U << 12, |
| PERF_OUTPUT_PERIOD = 1U << 13, |
| }; |
| |
| struct output_option { |
| const char *str; |
| enum perf_output_field field; |
| } all_output_options[] = { |
| {.str = "comm", .field = PERF_OUTPUT_COMM}, |
| {.str = "tid", .field = PERF_OUTPUT_TID}, |
| {.str = "pid", .field = PERF_OUTPUT_PID}, |
| {.str = "time", .field = PERF_OUTPUT_TIME}, |
| {.str = "cpu", .field = PERF_OUTPUT_CPU}, |
| {.str = "event", .field = PERF_OUTPUT_EVNAME}, |
| {.str = "trace", .field = PERF_OUTPUT_TRACE}, |
| {.str = "ip", .field = PERF_OUTPUT_IP}, |
| {.str = "sym", .field = PERF_OUTPUT_SYM}, |
| {.str = "dso", .field = PERF_OUTPUT_DSO}, |
| {.str = "addr", .field = PERF_OUTPUT_ADDR}, |
| {.str = "symoff", .field = PERF_OUTPUT_SYMOFFSET}, |
| {.str = "srcline", .field = PERF_OUTPUT_SRCLINE}, |
| {.str = "period", .field = PERF_OUTPUT_PERIOD}, |
| }; |
| |
| /* default set to maintain compatibility with current format */ |
| static struct { |
| bool user_set; |
| bool wildcard_set; |
| unsigned int print_ip_opts; |
| u64 fields; |
| u64 invalid_fields; |
| } output[PERF_TYPE_MAX] = { |
| |
| [PERF_TYPE_HARDWARE] = { |
| .user_set = false, |
| |
| .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | |
| PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | |
| PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP | |
| PERF_OUTPUT_SYM | PERF_OUTPUT_DSO | |
| PERF_OUTPUT_PERIOD, |
| |
| .invalid_fields = PERF_OUTPUT_TRACE, |
| }, |
| |
| [PERF_TYPE_SOFTWARE] = { |
| .user_set = false, |
| |
| .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | |
| PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | |
| PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP | |
| PERF_OUTPUT_SYM | PERF_OUTPUT_DSO | |
| PERF_OUTPUT_PERIOD, |
| |
| .invalid_fields = PERF_OUTPUT_TRACE, |
| }, |
| |
| [PERF_TYPE_TRACEPOINT] = { |
| .user_set = false, |
| |
| .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | |
| PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | |
| PERF_OUTPUT_EVNAME | PERF_OUTPUT_TRACE, |
| }, |
| |
| [PERF_TYPE_RAW] = { |
| .user_set = false, |
| |
| .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | |
| PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | |
| PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP | |
| PERF_OUTPUT_SYM | PERF_OUTPUT_DSO | |
| PERF_OUTPUT_PERIOD, |
| |
| .invalid_fields = PERF_OUTPUT_TRACE, |
| }, |
| }; |
| |
| static bool output_set_by_user(void) |
| { |
| int j; |
| for (j = 0; j < PERF_TYPE_MAX; ++j) { |
| if (output[j].user_set) |
| return true; |
| } |
| return false; |
| } |
| |
| static const char *output_field2str(enum perf_output_field field) |
| { |
| int i, imax = ARRAY_SIZE(all_output_options); |
| const char *str = ""; |
| |
| for (i = 0; i < imax; ++i) { |
| if (all_output_options[i].field == field) { |
| str = all_output_options[i].str; |
| break; |
| } |
| } |
| return str; |
| } |
| |
| #define PRINT_FIELD(x) (output[attr->type].fields & PERF_OUTPUT_##x) |
| |
| static int perf_evsel__check_stype(struct perf_evsel *evsel, |
| u64 sample_type, const char *sample_msg, |
| enum perf_output_field field) |
| { |
| struct perf_event_attr *attr = &evsel->attr; |
| int type = attr->type; |
| const char *evname; |
| |
| if (attr->sample_type & sample_type) |
| return 0; |
| |
| if (output[type].user_set) { |
| evname = perf_evsel__name(evsel); |
| pr_err("Samples for '%s' event do not have %s attribute set. " |
| "Cannot print '%s' field.\n", |
| evname, sample_msg, output_field2str(field)); |
| return -1; |
| } |
| |
| /* user did not ask for it explicitly so remove from the default list */ |
| output[type].fields &= ~field; |
| evname = perf_evsel__name(evsel); |
| pr_debug("Samples for '%s' event do not have %s attribute set. " |
| "Skipping '%s' field.\n", |
| evname, sample_msg, output_field2str(field)); |
| |
| return 0; |
| } |
| |
| static int perf_evsel__check_attr(struct perf_evsel *evsel, |
| struct perf_session *session) |
| { |
| struct perf_event_attr *attr = &evsel->attr; |
| |
| if (PRINT_FIELD(TRACE) && |
| !perf_session__has_traces(session, "record -R")) |
| return -EINVAL; |
| |
| if (PRINT_FIELD(IP)) { |
| if (perf_evsel__check_stype(evsel, PERF_SAMPLE_IP, "IP", |
| PERF_OUTPUT_IP)) |
| return -EINVAL; |
| } |
| |
| if (PRINT_FIELD(ADDR) && |
| perf_evsel__check_stype(evsel, PERF_SAMPLE_ADDR, "ADDR", |
| PERF_OUTPUT_ADDR)) |
| return -EINVAL; |
| |
| if (PRINT_FIELD(SYM) && !PRINT_FIELD(IP) && !PRINT_FIELD(ADDR)) { |
| pr_err("Display of symbols requested but neither sample IP nor " |
| "sample address\nis selected. Hence, no addresses to convert " |
| "to symbols.\n"); |
| return -EINVAL; |
| } |
| if (PRINT_FIELD(SYMOFFSET) && !PRINT_FIELD(SYM)) { |
| pr_err("Display of offsets requested but symbol is not" |
| "selected.\n"); |
| return -EINVAL; |
| } |
| if (PRINT_FIELD(DSO) && !PRINT_FIELD(IP) && !PRINT_FIELD(ADDR)) { |
| pr_err("Display of DSO requested but neither sample IP nor " |
| "sample address\nis selected. Hence, no addresses to convert " |
| "to DSO.\n"); |
| return -EINVAL; |
| } |
| if (PRINT_FIELD(SRCLINE) && !PRINT_FIELD(IP)) { |
| pr_err("Display of source line number requested but sample IP is not\n" |
| "selected. Hence, no address to lookup the source line number.\n"); |
| return -EINVAL; |
| } |
| |
| if ((PRINT_FIELD(PID) || PRINT_FIELD(TID)) && |
| perf_evsel__check_stype(evsel, PERF_SAMPLE_TID, "TID", |
| PERF_OUTPUT_TID|PERF_OUTPUT_PID)) |
| return -EINVAL; |
| |
| if (PRINT_FIELD(TIME) && |
| perf_evsel__check_stype(evsel, PERF_SAMPLE_TIME, "TIME", |
| PERF_OUTPUT_TIME)) |
| return -EINVAL; |
| |
| if (PRINT_FIELD(CPU) && |
| perf_evsel__check_stype(evsel, PERF_SAMPLE_CPU, "CPU", |
| PERF_OUTPUT_CPU)) |
| return -EINVAL; |
| |
| if (PRINT_FIELD(PERIOD) && |
| perf_evsel__check_stype(evsel, PERF_SAMPLE_PERIOD, "PERIOD", |
| PERF_OUTPUT_PERIOD)) |
| return -EINVAL; |
| |
| return 0; |
| } |
| |
| static void set_print_ip_opts(struct perf_event_attr *attr) |
| { |
| unsigned int type = attr->type; |
| |
| output[type].print_ip_opts = 0; |
| if (PRINT_FIELD(IP)) |
| output[type].print_ip_opts |= PRINT_IP_OPT_IP; |
| |
| if (PRINT_FIELD(SYM)) |
| output[type].print_ip_opts |= PRINT_IP_OPT_SYM; |
| |
| if (PRINT_FIELD(DSO)) |
| output[type].print_ip_opts |= PRINT_IP_OPT_DSO; |
| |
| if (PRINT_FIELD(SYMOFFSET)) |
| output[type].print_ip_opts |= PRINT_IP_OPT_SYMOFFSET; |
| |
| if (PRINT_FIELD(SRCLINE)) |
| output[type].print_ip_opts |= PRINT_IP_OPT_SRCLINE; |
| } |
| |
| /* |
| * verify all user requested events exist and the samples |
| * have the expected data |
| */ |
| static int perf_session__check_output_opt(struct perf_session *session) |
| { |
| int j; |
| struct perf_evsel *evsel; |
| |
| for (j = 0; j < PERF_TYPE_MAX; ++j) { |
| evsel = perf_session__find_first_evtype(session, j); |
| |
| /* |
| * even if fields is set to 0 (ie., show nothing) event must |
| * exist if user explicitly includes it on the command line |
| */ |
| if (!evsel && output[j].user_set && !output[j].wildcard_set) { |
| pr_err("%s events do not exist. " |
| "Remove corresponding -f option to proceed.\n", |
| event_type(j)); |
| return -1; |
| } |
| |
| if (evsel && output[j].fields && |
| perf_evsel__check_attr(evsel, session)) |
| return -1; |
| |
| if (evsel == NULL) |
| continue; |
| |
| set_print_ip_opts(&evsel->attr); |
| } |
| |
| if (!no_callchain) { |
| bool use_callchain = false; |
| |
| evlist__for_each(session->evlist, evsel) { |
| if (evsel->attr.sample_type & PERF_SAMPLE_CALLCHAIN) { |
| use_callchain = true; |
| break; |
| } |
| } |
| if (!use_callchain) |
| symbol_conf.use_callchain = false; |
| } |
| |
| /* |
| * set default for tracepoints to print symbols only |
| * if callchains are present |
| */ |
| if (symbol_conf.use_callchain && |
| !output[PERF_TYPE_TRACEPOINT].user_set) { |
| struct perf_event_attr *attr; |
| |
| j = PERF_TYPE_TRACEPOINT; |
| evsel = perf_session__find_first_evtype(session, j); |
| if (evsel == NULL) |
| goto out; |
| |
| attr = &evsel->attr; |
| |
| if (attr->sample_type & PERF_SAMPLE_CALLCHAIN) { |
| output[j].fields |= PERF_OUTPUT_IP; |
| output[j].fields |= PERF_OUTPUT_SYM; |
| output[j].fields |= PERF_OUTPUT_DSO; |
| set_print_ip_opts(attr); |
| } |
| } |
| |
| out: |
| return 0; |
| } |
| |
| static void print_sample_start(struct perf_sample *sample, |
| struct thread *thread, |
| struct perf_evsel *evsel) |
| { |
| struct perf_event_attr *attr = &evsel->attr; |
| unsigned long secs; |
| unsigned long usecs; |
| unsigned long long nsecs; |
| |
| if (PRINT_FIELD(COMM)) { |
| if (latency_format) |
| printf("%8.8s ", thread__comm_str(thread)); |
| else if (PRINT_FIELD(IP) && symbol_conf.use_callchain) |
| printf("%s ", thread__comm_str(thread)); |
| else |
| printf("%16s ", thread__comm_str(thread)); |
| } |
| |
| if (PRINT_FIELD(PID) && PRINT_FIELD(TID)) |
| printf("%5d/%-5d ", sample->pid, sample->tid); |
| else if (PRINT_FIELD(PID)) |
| printf("%5d ", sample->pid); |
| else if (PRINT_FIELD(TID)) |
| printf("%5d ", sample->tid); |
| |
| if (PRINT_FIELD(CPU)) { |
| if (latency_format) |
| printf("%3d ", sample->cpu); |
| else |
| printf("[%03d] ", sample->cpu); |
| } |
| |
| if (PRINT_FIELD(TIME)) { |
| nsecs = sample->time; |
| secs = nsecs / NSECS_PER_SEC; |
| nsecs -= secs * NSECS_PER_SEC; |
| usecs = nsecs / NSECS_PER_USEC; |
| printf("%5lu.%06lu: ", secs, usecs); |
| } |
| } |
| |
| static void print_sample_addr(union perf_event *event, |
| struct perf_sample *sample, |
| struct thread *thread, |
| struct perf_event_attr *attr) |
| { |
| struct addr_location al; |
| |
| printf("%16" PRIx64, sample->addr); |
| |
| if (!sample_addr_correlates_sym(attr)) |
| return; |
| |
| perf_event__preprocess_sample_addr(event, sample, thread, &al); |
| |
| if (PRINT_FIELD(SYM)) { |
| printf(" "); |
| if (PRINT_FIELD(SYMOFFSET)) |
| symbol__fprintf_symname_offs(al.sym, &al, stdout); |
| else |
| symbol__fprintf_symname(al.sym, stdout); |
| } |
| |
| if (PRINT_FIELD(DSO)) { |
| printf(" ("); |
| map__fprintf_dsoname(al.map, stdout); |
| printf(")"); |
| } |
| } |
| |
| static void print_sample_bts(union perf_event *event, |
| struct perf_sample *sample, |
| struct perf_evsel *evsel, |
| struct thread *thread, |
| struct addr_location *al) |
| { |
| struct perf_event_attr *attr = &evsel->attr; |
| bool print_srcline_last = false; |
| |
| /* print branch_from information */ |
| if (PRINT_FIELD(IP)) { |
| unsigned int print_opts = output[attr->type].print_ip_opts; |
| |
| if (symbol_conf.use_callchain && sample->callchain) { |
| printf("\n"); |
| } else { |
| printf(" "); |
| if (print_opts & PRINT_IP_OPT_SRCLINE) { |
| print_srcline_last = true; |
| print_opts &= ~PRINT_IP_OPT_SRCLINE; |
| } |
| } |
| perf_evsel__print_ip(evsel, sample, al, print_opts, |
| PERF_MAX_STACK_DEPTH); |
| } |
| |
| /* print branch_to information */ |
| if (PRINT_FIELD(ADDR) || |
| ((evsel->attr.sample_type & PERF_SAMPLE_ADDR) && |
| !output[attr->type].user_set)) { |
| printf(" => "); |
| print_sample_addr(event, sample, thread, attr); |
| } |
| |
| if (print_srcline_last) |
| map__fprintf_srcline(al->map, al->addr, "\n ", stdout); |
| |
| printf("\n"); |
| } |
| |
| static void process_event(union perf_event *event, struct perf_sample *sample, |
| struct perf_evsel *evsel, struct thread *thread, |
| struct addr_location *al) |
| { |
| struct perf_event_attr *attr = &evsel->attr; |
| |
| if (output[attr->type].fields == 0) |
| return; |
| |
| print_sample_start(sample, thread, evsel); |
| |
| if (PRINT_FIELD(PERIOD)) |
| printf("%10" PRIu64 " ", sample->period); |
| |
| if (PRINT_FIELD(EVNAME)) { |
| const char *evname = perf_evsel__name(evsel); |
| printf("%s: ", evname ? evname : "[unknown]"); |
| } |
| |
| if (is_bts_event(attr)) { |
| print_sample_bts(event, sample, evsel, thread, al); |
| return; |
| } |
| |
| if (PRINT_FIELD(TRACE)) |
| event_format__print(evsel->tp_format, sample->cpu, |
| sample->raw_data, sample->raw_size); |
| if (PRINT_FIELD(ADDR)) |
| print_sample_addr(event, sample, thread, attr); |
| |
| if (PRINT_FIELD(IP)) { |
| if (!symbol_conf.use_callchain) |
| printf(" "); |
| else |
| printf("\n"); |
| |
| perf_evsel__print_ip(evsel, sample, al, |
| output[attr->type].print_ip_opts, |
| PERF_MAX_STACK_DEPTH); |
| } |
| |
| printf("\n"); |
| } |
| |
| static int default_start_script(const char *script __maybe_unused, |
| int argc __maybe_unused, |
| const char **argv __maybe_unused) |
| { |
| return 0; |
| } |
| |
| static int default_flush_script(void) |
| { |
| return 0; |
| } |
| |
| static int default_stop_script(void) |
| { |
| return 0; |
| } |
| |
| static int default_generate_script(struct pevent *pevent __maybe_unused, |
| const char *outfile __maybe_unused) |
| { |
| return 0; |
| } |
| |
| static struct scripting_ops default_scripting_ops = { |
| .start_script = default_start_script, |
| .flush_script = default_flush_script, |
| .stop_script = default_stop_script, |
| .process_event = process_event, |
| .generate_script = default_generate_script, |
| }; |
| |
| static struct scripting_ops *scripting_ops; |
| |
| static void setup_scripting(void) |
| { |
| setup_perl_scripting(); |
| setup_python_scripting(); |
| |
| scripting_ops = &default_scripting_ops; |
| } |
| |
| static int flush_scripting(void) |
| { |
| return scripting_ops->flush_script(); |
| } |
| |
| static int cleanup_scripting(void) |
| { |
| pr_debug("\nperf script stopped\n"); |
| |
| return scripting_ops->stop_script(); |
| } |
| |
| static int process_sample_event(struct perf_tool *tool __maybe_unused, |
| union perf_event *event, |
| struct perf_sample *sample, |
| struct perf_evsel *evsel, |
| struct machine *machine) |
| { |
| struct addr_location al; |
| struct thread *thread = machine__findnew_thread(machine, sample->pid, |
| sample->tid); |
| |
| if (thread == NULL) { |
| pr_debug("problem processing %d event, skipping it.\n", |
| event->header.type); |
| return -1; |
| } |
| |
| if (debug_mode) { |
| if (sample->time < last_timestamp) { |
| pr_err("Samples misordered, previous: %" PRIu64 |
| " this: %" PRIu64 "\n", last_timestamp, |
| sample->time); |
| nr_unordered++; |
| } |
| last_timestamp = sample->time; |
| return 0; |
| } |
| |
| if (perf_event__preprocess_sample(event, machine, &al, sample) < 0) { |
| pr_err("problem processing %d event, skipping it.\n", |
| event->header.type); |
| return -1; |
| } |
| |
| if (al.filtered) |
| return 0; |
| |
| if (cpu_list && !test_bit(sample->cpu, cpu_bitmap)) |
| return 0; |
| |
| scripting_ops->process_event(event, sample, evsel, thread, &al); |
| |
| return 0; |
| } |
| |
| struct perf_script { |
| struct perf_tool tool; |
| struct perf_session *session; |
| bool show_task_events; |
| bool show_mmap_events; |
| }; |
| |
| static int process_attr(struct perf_tool *tool, union perf_event *event, |
| struct perf_evlist **pevlist) |
| { |
| struct perf_script *scr = container_of(tool, struct perf_script, tool); |
| struct perf_evlist *evlist; |
| struct perf_evsel *evsel, *pos; |
| int err; |
| |
| err = perf_event__process_attr(tool, event, pevlist); |
| if (err) |
| return err; |
| |
| evlist = *pevlist; |
| evsel = perf_evlist__last(*pevlist); |
| |
| if (evsel->attr.type >= PERF_TYPE_MAX) |
| return 0; |
| |
| evlist__for_each(evlist, pos) { |
| if (pos->attr.type == evsel->attr.type && pos != evsel) |
| return 0; |
| } |
| |
| set_print_ip_opts(&evsel->attr); |
| |
| return perf_evsel__check_attr(evsel, scr->session); |
| } |
| |
| static int process_comm_event(struct perf_tool *tool, |
| union perf_event *event, |
| struct perf_sample *sample, |
| struct machine *machine) |
| { |
| struct thread *thread; |
| struct perf_script *script = container_of(tool, struct perf_script, tool); |
| struct perf_session *session = script->session; |
| struct perf_evsel *evsel = perf_evlist__first(session->evlist); |
| int ret = -1; |
| |
| thread = machine__findnew_thread(machine, event->comm.pid, event->comm.tid); |
| if (thread == NULL) { |
| pr_debug("problem processing COMM event, skipping it.\n"); |
| return -1; |
| } |
| |
| if (perf_event__process_comm(tool, event, sample, machine) < 0) |
| goto out; |
| |
| if (!evsel->attr.sample_id_all) { |
| sample->cpu = 0; |
| sample->time = 0; |
| sample->tid = event->comm.tid; |
| sample->pid = event->comm.pid; |
| } |
| print_sample_start(sample, thread, evsel); |
| perf_event__fprintf(event, stdout); |
| ret = 0; |
| |
| out: |
| return ret; |
| } |
| |
| static int process_fork_event(struct perf_tool *tool, |
| union perf_event *event, |
| struct perf_sample *sample, |
| struct machine *machine) |
| { |
| struct thread *thread; |
| struct perf_script *script = container_of(tool, struct perf_script, tool); |
| struct perf_session *session = script->session; |
| struct perf_evsel *evsel = perf_evlist__first(session->evlist); |
| |
| if (perf_event__process_fork(tool, event, sample, machine) < 0) |
| return -1; |
| |
| thread = machine__findnew_thread(machine, event->fork.pid, event->fork.tid); |
| if (thread == NULL) { |
| pr_debug("problem processing FORK event, skipping it.\n"); |
| return -1; |
| } |
| |
| if (!evsel->attr.sample_id_all) { |
| sample->cpu = 0; |
| sample->time = event->fork.time; |
| sample->tid = event->fork.tid; |
| sample->pid = event->fork.pid; |
| } |
| print_sample_start(sample, thread, evsel); |
| perf_event__fprintf(event, stdout); |
| |
| return 0; |
| } |
| static int process_exit_event(struct perf_tool *tool, |
| union perf_event *event, |
| struct perf_sample *sample, |
| struct machine *machine) |
| { |
| struct thread *thread; |
| struct perf_script *script = container_of(tool, struct perf_script, tool); |
| struct perf_session *session = script->session; |
| struct perf_evsel *evsel = perf_evlist__first(session->evlist); |
| |
| thread = machine__findnew_thread(machine, event->fork.pid, event->fork.tid); |
| if (thread == NULL) { |
| pr_debug("problem processing EXIT event, skipping it.\n"); |
| return -1; |
| } |
| |
| if (!evsel->attr.sample_id_all) { |
| sample->cpu = 0; |
| sample->time = 0; |
| sample->tid = event->comm.tid; |
| sample->pid = event->comm.pid; |
| } |
| print_sample_start(sample, thread, evsel); |
| perf_event__fprintf(event, stdout); |
| |
| if (perf_event__process_exit(tool, event, sample, machine) < 0) |
| return -1; |
| |
| return 0; |
| } |
| |
| static int process_mmap_event(struct perf_tool *tool, |
| union perf_event *event, |
| struct perf_sample *sample, |
| struct machine *machine) |
| { |
| struct thread *thread; |
| struct perf_script *script = container_of(tool, struct perf_script, tool); |
| struct perf_session *session = script->session; |
| struct perf_evsel *evsel = perf_evlist__first(session->evlist); |
| |
| if (perf_event__process_mmap(tool, event, sample, machine) < 0) |
| return -1; |
| |
| thread = machine__findnew_thread(machine, event->mmap.pid, event->mmap.tid); |
| if (thread == NULL) { |
| pr_debug("problem processing MMAP event, skipping it.\n"); |
| return -1; |
| } |
| |
| if (!evsel->attr.sample_id_all) { |
| sample->cpu = 0; |
| sample->time = 0; |
| sample->tid = event->mmap.tid; |
| sample->pid = event->mmap.pid; |
| } |
| print_sample_start(sample, thread, evsel); |
| perf_event__fprintf(event, stdout); |
| |
| return 0; |
| } |
| |
| static int process_mmap2_event(struct perf_tool *tool, |
| union perf_event *event, |
| struct perf_sample *sample, |
| struct machine *machine) |
| { |
| struct thread *thread; |
| struct perf_script *script = container_of(tool, struct perf_script, tool); |
| struct perf_session *session = script->session; |
| struct perf_evsel *evsel = perf_evlist__first(session->evlist); |
| |
| if (perf_event__process_mmap2(tool, event, sample, machine) < 0) |
| return -1; |
| |
| thread = machine__findnew_thread(machine, event->mmap2.pid, event->mmap2.tid); |
| if (thread == NULL) { |
| pr_debug("problem processing MMAP2 event, skipping it.\n"); |
| return -1; |
| } |
| |
| if (!evsel->attr.sample_id_all) { |
| sample->cpu = 0; |
| sample->time = 0; |
| sample->tid = event->mmap2.tid; |
| sample->pid = event->mmap2.pid; |
| } |
| print_sample_start(sample, thread, evsel); |
| perf_event__fprintf(event, stdout); |
| |
| return 0; |
| } |
| |
| static void sig_handler(int sig __maybe_unused) |
| { |
| session_done = 1; |
| } |
| |
| static int __cmd_script(struct perf_script *script) |
| { |
| int ret; |
| |
| signal(SIGINT, sig_handler); |
| |
| /* override event processing functions */ |
| if (script->show_task_events) { |
| script->tool.comm = process_comm_event; |
| script->tool.fork = process_fork_event; |
| script->tool.exit = process_exit_event; |
| } |
| if (script->show_mmap_events) { |
| script->tool.mmap = process_mmap_event; |
| script->tool.mmap2 = process_mmap2_event; |
| } |
| |
| ret = perf_session__process_events(script->session); |
| |
| if (debug_mode) |
| pr_err("Misordered timestamps: %" PRIu64 "\n", nr_unordered); |
| |
| return ret; |
| } |
| |
| struct script_spec { |
| struct list_head node; |
| struct scripting_ops *ops; |
| char spec[0]; |
| }; |
| |
| static LIST_HEAD(script_specs); |
| |
| static struct script_spec *script_spec__new(const char *spec, |
| struct scripting_ops *ops) |
| { |
| struct script_spec *s = malloc(sizeof(*s) + strlen(spec) + 1); |
| |
| if (s != NULL) { |
| strcpy(s->spec, spec); |
| s->ops = ops; |
| } |
| |
| return s; |
| } |
| |
| static void script_spec__add(struct script_spec *s) |
| { |
| list_add_tail(&s->node, &script_specs); |
| } |
| |
| static struct script_spec *script_spec__find(const char *spec) |
| { |
| struct script_spec *s; |
| |
| list_for_each_entry(s, &script_specs, node) |
| if (strcasecmp(s->spec, spec) == 0) |
| return s; |
| return NULL; |
| } |
| |
| static struct script_spec *script_spec__findnew(const char *spec, |
| struct scripting_ops *ops) |
| { |
| struct script_spec *s = script_spec__find(spec); |
| |
| if (s) |
| return s; |
| |
| s = script_spec__new(spec, ops); |
| if (!s) |
| return NULL; |
| |
| script_spec__add(s); |
| |
| return s; |
| } |
| |
| int script_spec_register(const char *spec, struct scripting_ops *ops) |
| { |
| struct script_spec *s; |
| |
| s = script_spec__find(spec); |
| if (s) |
| return -1; |
| |
| s = script_spec__findnew(spec, ops); |
| if (!s) |
| return -1; |
| |
| return 0; |
| } |
| |
| static struct scripting_ops *script_spec__lookup(const char *spec) |
| { |
| struct script_spec *s = script_spec__find(spec); |
| if (!s) |
| return NULL; |
| |
| return s->ops; |
| } |
| |
| static void list_available_languages(void) |
| { |
| struct script_spec *s; |
| |
| fprintf(stderr, "\n"); |
| fprintf(stderr, "Scripting language extensions (used in " |
| "perf script -s [spec:]script.[spec]):\n\n"); |
| |
| list_for_each_entry(s, &script_specs, node) |
| fprintf(stderr, " %-42s [%s]\n", s->spec, s->ops->name); |
| |
| fprintf(stderr, "\n"); |
| } |
| |
| static int parse_scriptname(const struct option *opt __maybe_unused, |
| const char *str, int unset __maybe_unused) |
| { |
| char spec[PATH_MAX]; |
| const char *script, *ext; |
| int len; |
| |
| if (strcmp(str, "lang") == 0) { |
| list_available_languages(); |
| exit(0); |
| } |
| |
| script = strchr(str, ':'); |
| if (script) { |
| len = script - str; |
| if (len >= PATH_MAX) { |
| fprintf(stderr, "invalid language specifier"); |
| return -1; |
| } |
| strncpy(spec, str, len); |
| spec[len] = '\0'; |
| scripting_ops = script_spec__lookup(spec); |
| if (!scripting_ops) { |
| fprintf(stderr, "invalid language specifier"); |
| return -1; |
| } |
| script++; |
| } else { |
| script = str; |
| ext = strrchr(script, '.'); |
| if (!ext) { |
| fprintf(stderr, "invalid script extension"); |
| return -1; |
| } |
| scripting_ops = script_spec__lookup(++ext); |
| if (!scripting_ops) { |
| fprintf(stderr, "invalid script extension"); |
| return -1; |
| } |
| } |
| |
| script_name = strdup(script); |
| |
| return 0; |
| } |
| |
| static int parse_output_fields(const struct option *opt __maybe_unused, |
| const char *arg, int unset __maybe_unused) |
| { |
| char *tok; |
| int i, imax = ARRAY_SIZE(all_output_options); |
| int j; |
| int rc = 0; |
| char *str = strdup(arg); |
| int type = -1; |
| |
| if (!str) |
| return -ENOMEM; |
| |
| /* first word can state for which event type the user is specifying |
| * the fields. If no type exists, the specified fields apply to all |
| * event types found in the file minus the invalid fields for a type. |
| */ |
| tok = strchr(str, ':'); |
| if (tok) { |
| *tok = '\0'; |
| tok++; |
| if (!strcmp(str, "hw")) |
| type = PERF_TYPE_HARDWARE; |
| else if (!strcmp(str, "sw")) |
| type = PERF_TYPE_SOFTWARE; |
| else if (!strcmp(str, "trace")) |
| type = PERF_TYPE_TRACEPOINT; |
| else if (!strcmp(str, "raw")) |
| type = PERF_TYPE_RAW; |
| else { |
| fprintf(stderr, "Invalid event type in field string.\n"); |
| rc = -EINVAL; |
| goto out; |
| } |
| |
| if (output[type].user_set) |
| pr_warning("Overriding previous field request for %s events.\n", |
| event_type(type)); |
| |
| output[type].fields = 0; |
| output[type].user_set = true; |
| output[type].wildcard_set = false; |
| |
| } else { |
| tok = str; |
| if (strlen(str) == 0) { |
| fprintf(stderr, |
| "Cannot set fields to 'none' for all event types.\n"); |
| rc = -EINVAL; |
| goto out; |
| } |
| |
| if (output_set_by_user()) |
| pr_warning("Overriding previous field request for all events.\n"); |
| |
| for (j = 0; j < PERF_TYPE_MAX; ++j) { |
| output[j].fields = 0; |
| output[j].user_set = true; |
| output[j].wildcard_set = true; |
| } |
| } |
| |
| tok = strtok(tok, ","); |
| while (tok) { |
| for (i = 0; i < imax; ++i) { |
| if (strcmp(tok, all_output_options[i].str) == 0) |
| break; |
| } |
| if (i == imax) { |
| fprintf(stderr, "Invalid field requested.\n"); |
| rc = -EINVAL; |
| goto out; |
| } |
| |
| if (type == -1) { |
| /* add user option to all events types for |
| * which it is valid |
| */ |
| for (j = 0; j < PERF_TYPE_MAX; ++j) { |
| if (output[j].invalid_fields & all_output_options[i].field) { |
| pr_warning("\'%s\' not valid for %s events. Ignoring.\n", |
| all_output_options[i].str, event_type(j)); |
| } else |
| output[j].fields |= all_output_options[i].field; |
| } |
| } else { |
| if (output[type].invalid_fields & all_output_options[i].field) { |
| fprintf(stderr, "\'%s\' not valid for %s events.\n", |
| all_output_options[i].str, event_type(type)); |
| |
| rc = -EINVAL; |
| goto out; |
| } |
| output[type].fields |= all_output_options[i].field; |
| } |
| |
| tok = strtok(NULL, ","); |
| } |
| |
| if (type >= 0) { |
| if (output[type].fields == 0) { |
| pr_debug("No fields requested for %s type. " |
| "Events will not be displayed.\n", event_type(type)); |
| } |
| } |
| |
| out: |
| free(str); |
| return rc; |
| } |
| |
| /* Helper function for filesystems that return a dent->d_type DT_UNKNOWN */ |
| static int is_directory(const char *base_path, const struct dirent *dent) |
| { |
| char path[PATH_MAX]; |
| struct stat st; |
| |
| sprintf(path, "%s/%s", base_path, dent->d_name); |
| if (stat(path, &st)) |
| return 0; |
| |
| return S_ISDIR(st.st_mode); |
| } |
| |
| #define for_each_lang(scripts_path, scripts_dir, lang_dirent, lang_next)\ |
| while (!readdir_r(scripts_dir, &lang_dirent, &lang_next) && \ |
| lang_next) \ |
| if ((lang_dirent.d_type == DT_DIR || \ |
| (lang_dirent.d_type == DT_UNKNOWN && \ |
| is_directory(scripts_path, &lang_dirent))) && \ |
| (strcmp(lang_dirent.d_name, ".")) && \ |
| (strcmp(lang_dirent.d_name, ".."))) |
| |
| #define for_each_script(lang_path, lang_dir, script_dirent, script_next)\ |
| while (!readdir_r(lang_dir, &script_dirent, &script_next) && \ |
| script_next) \ |
| if (script_dirent.d_type != DT_DIR && \ |
| (script_dirent.d_type != DT_UNKNOWN || \ |
| !is_directory(lang_path, &script_dirent))) |
| |
| |
| #define RECORD_SUFFIX "-record" |
| #define REPORT_SUFFIX "-report" |
| |
| struct script_desc { |
| struct list_head node; |
| char *name; |
| char *half_liner; |
| char *args; |
| }; |
| |
| static LIST_HEAD(script_descs); |
| |
| static struct script_desc *script_desc__new(const char *name) |
| { |
| struct script_desc *s = zalloc(sizeof(*s)); |
| |
| if (s != NULL && name) |
| s->name = strdup(name); |
| |
| return s; |
| } |
| |
| static void script_desc__delete(struct script_desc *s) |
| { |
| zfree(&s->name); |
| zfree(&s->half_liner); |
| zfree(&s->args); |
| free(s); |
| } |
| |
| static void script_desc__add(struct script_desc *s) |
| { |
| list_add_tail(&s->node, &script_descs); |
| } |
| |
| static struct script_desc *script_desc__find(const char *name) |
| { |
| struct script_desc *s; |
| |
| list_for_each_entry(s, &script_descs, node) |
| if (strcasecmp(s->name, name) == 0) |
| return s; |
| return NULL; |
| } |
| |
| static struct script_desc *script_desc__findnew(const char *name) |
| { |
| struct script_desc *s = script_desc__find(name); |
| |
| if (s) |
| return s; |
| |
| s = script_desc__new(name); |
| if (!s) |
| goto out_delete_desc; |
| |
| script_desc__add(s); |
| |
| return s; |
| |
| out_delete_desc: |
| script_desc__delete(s); |
| |
| return NULL; |
| } |
| |
| static const char *ends_with(const char *str, const char *suffix) |
| { |
| size_t suffix_len = strlen(suffix); |
| const char *p = str; |
| |
| if (strlen(str) > suffix_len) { |
| p = str + strlen(str) - suffix_len; |
| if (!strncmp(p, suffix, suffix_len)) |
| return p; |
| } |
| |
| return NULL; |
| } |
| |
| static int read_script_info(struct script_desc *desc, const char *filename) |
| { |
| char line[BUFSIZ], *p; |
| FILE *fp; |
| |
| fp = fopen(filename, "r"); |
| if (!fp) |
| return -1; |
| |
| while (fgets(line, sizeof(line), fp)) { |
| p = ltrim(line); |
| if (strlen(p) == 0) |
| continue; |
| if (*p != '#') |
| continue; |
| p++; |
| if (strlen(p) && *p == '!') |
| continue; |
| |
| p = ltrim(p); |
| if (strlen(p) && p[strlen(p) - 1] == '\n') |
| p[strlen(p) - 1] = '\0'; |
| |
| if (!strncmp(p, "description:", strlen("description:"))) { |
| p += strlen("description:"); |
| desc->half_liner = strdup(ltrim(p)); |
| continue; |
| } |
| |
| if (!strncmp(p, "args:", strlen("args:"))) { |
| p += strlen("args:"); |
| desc->args = strdup(ltrim(p)); |
| continue; |
| } |
| } |
| |
| fclose(fp); |
| |
| return 0; |
| } |
| |
| static char *get_script_root(struct dirent *script_dirent, const char *suffix) |
| { |
| char *script_root, *str; |
| |
| script_root = strdup(script_dirent->d_name); |
| if (!script_root) |
| return NULL; |
| |
| str = (char *)ends_with(script_root, suffix); |
| if (!str) { |
| free(script_root); |
| return NULL; |
| } |
| |
| *str = '\0'; |
| return script_root; |
| } |
| |
| static int list_available_scripts(const struct option *opt __maybe_unused, |
| const char *s __maybe_unused, |
| int unset __maybe_unused) |
| { |
| struct dirent *script_next, *lang_next, script_dirent, lang_dirent; |
| char scripts_path[MAXPATHLEN]; |
| DIR *scripts_dir, *lang_dir; |
| char script_path[MAXPATHLEN]; |
| char lang_path[MAXPATHLEN]; |
| struct script_desc *desc; |
| char first_half[BUFSIZ]; |
| char *script_root; |
| |
| snprintf(scripts_path, MAXPATHLEN, "%s/scripts", perf_exec_path()); |
| |
| scripts_dir = opendir(scripts_path); |
| if (!scripts_dir) |
| return -1; |
| |
| for_each_lang(scripts_path, scripts_dir, lang_dirent, lang_next) { |
| snprintf(lang_path, MAXPATHLEN, "%s/%s/bin", scripts_path, |
| lang_dirent.d_name); |
| lang_dir = opendir(lang_path); |
| if (!lang_dir) |
| continue; |
| |
| for_each_script(lang_path, lang_dir, script_dirent, script_next) { |
| script_root = get_script_root(&script_dirent, REPORT_SUFFIX); |
| if (script_root) { |
| desc = script_desc__findnew(script_root); |
| snprintf(script_path, MAXPATHLEN, "%s/%s", |
| lang_path, script_dirent.d_name); |
| read_script_info(desc, script_path); |
| free(script_root); |
| } |
| } |
| } |
| |
| fprintf(stdout, "List of available trace scripts:\n"); |
| list_for_each_entry(desc, &script_descs, node) { |
| sprintf(first_half, "%s %s", desc->name, |
| desc->args ? desc->args : ""); |
| fprintf(stdout, " %-36s %s\n", first_half, |
| desc->half_liner ? desc->half_liner : ""); |
| } |
| |
| exit(0); |
| } |
| |
| /* |
| * Some scripts specify the required events in their "xxx-record" file, |
| * this function will check if the events in perf.data match those |
| * mentioned in the "xxx-record". |
| * |
| * Fixme: All existing "xxx-record" are all in good formats "-e event ", |
| * which is covered well now. And new parsing code should be added to |
| * cover the future complexing formats like event groups etc. |
| */ |
| static int check_ev_match(char *dir_name, char *scriptname, |
| struct perf_session *session) |
| { |
| char filename[MAXPATHLEN], evname[128]; |
| char line[BUFSIZ], *p; |
| struct perf_evsel *pos; |
| int match, len; |
| FILE *fp; |
| |
| sprintf(filename, "%s/bin/%s-record", dir_name, scriptname); |
| |
| fp = fopen(filename, "r"); |
| if (!fp) |
| return -1; |
| |
| while (fgets(line, sizeof(line), fp)) { |
| p = ltrim(line); |
| if (*p == '#') |
| continue; |
| |
| while (strlen(p)) { |
| p = strstr(p, "-e"); |
| if (!p) |
| break; |
| |
| p += 2; |
| p = ltrim(p); |
| len = strcspn(p, " \t"); |
| if (!len) |
| break; |
| |
| snprintf(evname, len + 1, "%s", p); |
| |
| match = 0; |
| evlist__for_each(session->evlist, pos) { |
| if (!strcmp(perf_evsel__name(pos), evname)) { |
| match = 1; |
| break; |
| } |
| } |
| |
| if (!match) { |
| fclose(fp); |
| return -1; |
| } |
| } |
| } |
| |
| fclose(fp); |
| return 0; |
| } |
| |
| /* |
| * Return -1 if none is found, otherwise the actual scripts number. |
| * |
| * Currently the only user of this function is the script browser, which |
| * will list all statically runnable scripts, select one, execute it and |
| * show the output in a perf browser. |
| */ |
| int find_scripts(char **scripts_array, char **scripts_path_array) |
| { |
| struct dirent *script_next, *lang_next, script_dirent, lang_dirent; |
| char scripts_path[MAXPATHLEN], lang_path[MAXPATHLEN]; |
| DIR *scripts_dir, *lang_dir; |
| struct perf_session *session; |
| struct perf_data_file file = { |
| .path = input_name, |
| .mode = PERF_DATA_MODE_READ, |
| }; |
| char *temp; |
| int i = 0; |
| |
| session = perf_session__new(&file, false, NULL); |
| if (!session) |
| return -1; |
| |
| snprintf(scripts_path, MAXPATHLEN, "%s/scripts", perf_exec_path()); |
| |
| scripts_dir = opendir(scripts_path); |
| if (!scripts_dir) { |
| perf_session__delete(session); |
| return -1; |
| } |
| |
| for_each_lang(scripts_path, scripts_dir, lang_dirent, lang_next) { |
| snprintf(lang_path, MAXPATHLEN, "%s/%s", scripts_path, |
| lang_dirent.d_name); |
| #ifdef NO_LIBPERL |
| if (strstr(lang_path, "perl")) |
| continue; |
| #endif |
| #ifdef NO_LIBPYTHON |
| if (strstr(lang_path, "python")) |
| continue; |
| #endif |
| |
| lang_dir = opendir(lang_path); |
| if (!lang_dir) |
| continue; |
| |
| for_each_script(lang_path, lang_dir, script_dirent, script_next) { |
| /* Skip those real time scripts: xxxtop.p[yl] */ |
| if (strstr(script_dirent.d_name, "top.")) |
| continue; |
| sprintf(scripts_path_array[i], "%s/%s", lang_path, |
| script_dirent.d_name); |
| temp = strchr(script_dirent.d_name, '.'); |
| snprintf(scripts_array[i], |
| (temp - script_dirent.d_name) + 1, |
| "%s", script_dirent.d_name); |
| |
| if (check_ev_match(lang_path, |
| scripts_array[i], session)) |
| continue; |
| |
| i++; |
| } |
| closedir(lang_dir); |
| } |
| |
| closedir(scripts_dir); |
| perf_session__delete(session); |
| return i; |
| } |
| |
| static char *get_script_path(const char *script_root, const char *suffix) |
| { |
| struct dirent *script_next, *lang_next, script_dirent, lang_dirent; |
| char scripts_path[MAXPATHLEN]; |
| char script_path[MAXPATHLEN]; |
| DIR *scripts_dir, *lang_dir; |
| char lang_path[MAXPATHLEN]; |
| char *__script_root; |
| |
| snprintf(scripts_path, MAXPATHLEN, "%s/scripts", perf_exec_path()); |
| |
| scripts_dir = opendir(scripts_path); |
| if (!scripts_dir) |
| return NULL; |
| |
| for_each_lang(scripts_path, scripts_dir, lang_dirent, lang_next) { |
| snprintf(lang_path, MAXPATHLEN, "%s/%s/bin", scripts_path, |
| lang_dirent.d_name); |
| lang_dir = opendir(lang_path); |
| if (!lang_dir) |
| continue; |
| |
| for_each_script(lang_path, lang_dir, script_dirent, script_next) { |
| __script_root = get_script_root(&script_dirent, suffix); |
| if (__script_root && !strcmp(script_root, __script_root)) { |
| free(__script_root); |
| closedir(lang_dir); |
| closedir(scripts_dir); |
| snprintf(script_path, MAXPATHLEN, "%s/%s", |
| lang_path, script_dirent.d_name); |
| return strdup(script_path); |
| } |
| free(__script_root); |
| } |
| closedir(lang_dir); |
| } |
| closedir(scripts_dir); |
| |
| return NULL; |
| } |
| |
| static bool is_top_script(const char *script_path) |
| { |
| return ends_with(script_path, "top") == NULL ? false : true; |
| } |
| |
| static int has_required_arg(char *script_path) |
| { |
| struct script_desc *desc; |
| int n_args = 0; |
| char *p; |
| |
| desc = script_desc__new(NULL); |
| |
| if (read_script_info(desc, script_path)) |
| goto out; |
| |
| if (!desc->args) |
| goto out; |
| |
| for (p = desc->args; *p; p++) |
| if (*p == '<') |
| n_args++; |
| out: |
| script_desc__delete(desc); |
| |
| return n_args; |
| } |
| |
| static int have_cmd(int argc, const char **argv) |
| { |
| char **__argv = malloc(sizeof(const char *) * argc); |
| |
| if (!__argv) { |
| pr_err("malloc failed\n"); |
| return -1; |
| } |
| |
| memcpy(__argv, argv, sizeof(const char *) * argc); |
| argc = parse_options(argc, (const char **)__argv, record_options, |
| NULL, PARSE_OPT_STOP_AT_NON_OPTION); |
| free(__argv); |
| |
| system_wide = (argc == 0); |
| |
| return 0; |
| } |
| |
| int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused) |
| { |
| bool show_full_info = false; |
| bool header = false; |
| bool header_only = false; |
| bool script_started = false; |
| char *rec_script_path = NULL; |
| char *rep_script_path = NULL; |
| struct perf_session *session; |
| char *script_path = NULL; |
| const char **__argv; |
| int i, j, err = 0; |
| struct perf_script script = { |
| .tool = { |
| .sample = process_sample_event, |
| .mmap = perf_event__process_mmap, |
| .mmap2 = perf_event__process_mmap2, |
| .comm = perf_event__process_comm, |
| .exit = perf_event__process_exit, |
| .fork = perf_event__process_fork, |
| .attr = process_attr, |
| .tracing_data = perf_event__process_tracing_data, |
| .build_id = perf_event__process_build_id, |
| .ordered_events = true, |
| .ordering_requires_timestamps = true, |
| }, |
| }; |
| const struct option options[] = { |
| OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, |
| "dump raw trace in ASCII"), |
| OPT_INCR('v', "verbose", &verbose, |
| "be more verbose (show symbol address, etc)"), |
| OPT_BOOLEAN('L', "Latency", &latency_format, |
| "show latency attributes (irqs/preemption disabled, etc)"), |
| OPT_CALLBACK_NOOPT('l', "list", NULL, NULL, "list available scripts", |
| list_available_scripts), |
| OPT_CALLBACK('s', "script", NULL, "name", |
| "script file name (lang:script name, script name, or *)", |
| parse_scriptname), |
| OPT_STRING('g', "gen-script", &generate_script_lang, "lang", |
| "generate perf-script.xx script in specified language"), |
| OPT_STRING('i', "input", &input_name, "file", "input file name"), |
| OPT_BOOLEAN('d', "debug-mode", &debug_mode, |
| "do various checks like samples ordering and lost events"), |
| OPT_BOOLEAN(0, "header", &header, "Show data header."), |
| OPT_BOOLEAN(0, "header-only", &header_only, "Show only data header."), |
| OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, |
| "file", "vmlinux pathname"), |
| OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name, |
| "file", "kallsyms pathname"), |
| OPT_BOOLEAN('G', "hide-call-graph", &no_callchain, |
| "When printing symbols do not display call chain"), |
| OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory", |
| "Look for files with symbols relative to this directory"), |
| OPT_CALLBACK('f', "fields", NULL, "str", |
| "comma separated output fields prepend with 'type:'. " |
| "Valid types: hw,sw,trace,raw. " |
| "Fields: comm,tid,pid,time,cpu,event,trace,ip,sym,dso," |
| "addr,symoff,period", parse_output_fields), |
| OPT_BOOLEAN('a', "all-cpus", &system_wide, |
| "system-wide collection from all CPUs"), |
| OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", |
| "only consider these symbols"), |
| OPT_STRING('C', "cpu", &cpu_list, "cpu", "list of cpus to profile"), |
| OPT_STRING('c', "comms", &symbol_conf.comm_list_str, "comm[,comm...]", |
| "only display events for these comms"), |
| OPT_BOOLEAN('I', "show-info", &show_full_info, |
| "display extended information from perf.data file"), |
| OPT_BOOLEAN('\0', "show-kernel-path", &symbol_conf.show_kernel_path, |
| "Show the path of [kernel.kallsyms]"), |
| OPT_BOOLEAN('\0', "show-task-events", &script.show_task_events, |
| "Show the fork/comm/exit events"), |
| OPT_BOOLEAN('\0', "show-mmap-events", &script.show_mmap_events, |
| "Show the mmap events"), |
| OPT_END() |
| }; |
| const char * const script_subcommands[] = { "record", "report", NULL }; |
| const char *script_usage[] = { |
| "perf script [<options>]", |
| "perf script [<options>] record <script> [<record-options>] <command>", |
| "perf script [<options>] report <script> [script-args]", |
| "perf script [<options>] <script> [<record-options>] <command>", |
| "perf script [<options>] <top-script> [script-args]", |
| NULL |
| }; |
| struct perf_data_file file = { |
| .mode = PERF_DATA_MODE_READ, |
| }; |
| |
| setup_scripting(); |
| |
| argc = parse_options_subcommand(argc, argv, options, script_subcommands, script_usage, |
| PARSE_OPT_STOP_AT_NON_OPTION); |
| |
| file.path = input_name; |
| |
| if (argc > 1 && !strncmp(argv[0], "rec", strlen("rec"))) { |
| rec_script_path = get_script_path(argv[1], RECORD_SUFFIX); |
| if (!rec_script_path) |
| return cmd_record(argc, argv, NULL); |
| } |
| |
| if (argc > 1 && !strncmp(argv[0], "rep", strlen("rep"))) { |
| rep_script_path = get_script_path(argv[1], REPORT_SUFFIX); |
| if (!rep_script_path) { |
| fprintf(stderr, |
| "Please specify a valid report script" |
| "(see 'perf script -l' for listing)\n"); |
| return -1; |
| } |
| } |
| |
| /* make sure PERF_EXEC_PATH is set for scripts */ |
| perf_set_argv_exec_path(perf_exec_path()); |
| |
| if (argc && !script_name && !rec_script_path && !rep_script_path) { |
| int live_pipe[2]; |
| int rep_args; |
| pid_t pid; |
| |
| rec_script_path = get_script_path(argv[0], RECORD_SUFFIX); |
| rep_script_path = get_script_path(argv[0], REPORT_SUFFIX); |
| |
| if (!rec_script_path && !rep_script_path) { |
| fprintf(stderr, " Couldn't find script %s\n\n See perf" |
| " script -l for available scripts.\n", argv[0]); |
| usage_with_options(script_usage, options); |
| } |
| |
| if (is_top_script(argv[0])) { |
| rep_args = argc - 1; |
| } else { |
| int rec_args; |
| |
| rep_args = has_required_arg(rep_script_path); |
| rec_args = (argc - 1) - rep_args; |
| if (rec_args < 0) { |
| fprintf(stderr, " %s script requires options." |
| "\n\n See perf script -l for available " |
| "scripts and options.\n", argv[0]); |
| usage_with_options(script_usage, options); |
| } |
| } |
| |
| if (pipe(live_pipe) < 0) { |
| perror("failed to create pipe"); |
| return -1; |
| } |
| |
| pid = fork(); |
| if (pid < 0) { |
| perror("failed to fork"); |
| return -1; |
| } |
| |
| if (!pid) { |
| j = 0; |
| |
| dup2(live_pipe[1], 1); |
| close(live_pipe[0]); |
| |
| if (is_top_script(argv[0])) { |
| system_wide = true; |
| } else if (!system_wide) { |
| if (have_cmd(argc - rep_args, &argv[rep_args]) != 0) { |
| err = -1; |
| goto out; |
| } |
| } |
| |
| __argv = malloc((argc + 6) * sizeof(const char *)); |
| if (!__argv) { |
| pr_err("malloc failed\n"); |
| err = -ENOMEM; |
| goto out; |
| } |
| |
| __argv[j++] = "/bin/sh"; |
| __argv[j++] = rec_script_path; |
| if (system_wide) |
| __argv[j++] = "-a"; |
| __argv[j++] = "-q"; |
| __argv[j++] = "-o"; |
| __argv[j++] = "-"; |
| for (i = rep_args + 1; i < argc; i++) |
| __argv[j++] = argv[i]; |
| __argv[j++] = NULL; |
| |
| execvp("/bin/sh", (char **)__argv); |
| free(__argv); |
| exit(-1); |
| } |
| |
| dup2(live_pipe[0], 0); |
| close(live_pipe[1]); |
| |
| __argv = malloc((argc + 4) * sizeof(const char *)); |
| if (!__argv) { |
| pr_err("malloc failed\n"); |
| err = -ENOMEM; |
| goto out; |
| } |
| |
| j = 0; |
| __argv[j++] = "/bin/sh"; |
| __argv[j++] = rep_script_path; |
| for (i = 1; i < rep_args + 1; i++) |
| __argv[j++] = argv[i]; |
| __argv[j++] = "-i"; |
| __argv[j++] = "-"; |
| __argv[j++] = NULL; |
| |
| execvp("/bin/sh", (char **)__argv); |
| free(__argv); |
| exit(-1); |
| } |
| |
| if (rec_script_path) |
| script_path = rec_script_path; |
| if (rep_script_path) |
| script_path = rep_script_path; |
| |
| if (script_path) { |
| j = 0; |
| |
| if (!rec_script_path) |
| system_wide = false; |
| else if (!system_wide) { |
| if (have_cmd(argc - 1, &argv[1]) != 0) { |
| err = -1; |
| goto out; |
| } |
| } |
| |
| __argv = malloc((argc + 2) * sizeof(const char *)); |
| if (!__argv) { |
| pr_err("malloc failed\n"); |
| err = -ENOMEM; |
| goto out; |
| } |
| |
| __argv[j++] = "/bin/sh"; |
| __argv[j++] = script_path; |
| if (system_wide) |
| __argv[j++] = "-a"; |
| for (i = 2; i < argc; i++) |
| __argv[j++] = argv[i]; |
| __argv[j++] = NULL; |
| |
| execvp("/bin/sh", (char **)__argv); |
| free(__argv); |
| exit(-1); |
| } |
| |
| if (!script_name) |
| setup_pager(); |
| |
| session = perf_session__new(&file, false, &script.tool); |
| if (session == NULL) |
| return -1; |
| |
| if (header || header_only) { |
| perf_session__fprintf_info(session, stdout, show_full_info); |
| if (header_only) |
| goto out_delete; |
| } |
| |
| if (symbol__init(&session->header.env) < 0) |
| goto out_delete; |
| |
| script.session = session; |
| |
| if (cpu_list) { |
| err = perf_session__cpu_bitmap(session, cpu_list, cpu_bitmap); |
| if (err < 0) |
| goto out_delete; |
| } |
| |
| if (!no_callchain) |
| symbol_conf.use_callchain = true; |
| else |
| symbol_conf.use_callchain = false; |
| |
| if (generate_script_lang) { |
| struct stat perf_stat; |
| int input; |
| |
| if (output_set_by_user()) { |
| fprintf(stderr, |
| "custom fields not supported for generated scripts"); |
| err = -EINVAL; |
| goto out_delete; |
| } |
| |
| input = open(file.path, O_RDONLY); /* input_name */ |
| if (input < 0) { |
| err = -errno; |
| perror("failed to open file"); |
| goto out_delete; |
| } |
| |
| err = fstat(input, &perf_stat); |
| if (err < 0) { |
| perror("failed to stat file"); |
| goto out_delete; |
| } |
| |
| if (!perf_stat.st_size) { |
| fprintf(stderr, "zero-sized file, nothing to do!\n"); |
| goto out_delete; |
| } |
| |
| scripting_ops = script_spec__lookup(generate_script_lang); |
| if (!scripting_ops) { |
| fprintf(stderr, "invalid language specifier"); |
| err = -ENOENT; |
| goto out_delete; |
| } |
| |
| err = scripting_ops->generate_script(session->tevent.pevent, |
| "perf-script"); |
| goto out_delete; |
| } |
| |
| if (script_name) { |
| err = scripting_ops->start_script(script_name, argc, argv); |
| if (err) |
| goto out_delete; |
| pr_debug("perf script started with script %s\n\n", script_name); |
| script_started = true; |
| } |
| |
| |
| err = perf_session__check_output_opt(session); |
| if (err < 0) |
| goto out_delete; |
| |
| err = __cmd_script(&script); |
| |
| flush_scripting(); |
| |
| out_delete: |
| perf_session__delete(session); |
| |
| if (script_started) |
| cleanup_scripting(); |
| out: |
| return err; |
| } |