diff options
Diffstat (limited to 'ANDROID_3.4.5/tools/perf/builtin-script.c')
| -rw-r--r-- | ANDROID_3.4.5/tools/perf/builtin-script.c | 1409 |
1 files changed, 0 insertions, 1409 deletions
diff --git a/ANDROID_3.4.5/tools/perf/builtin-script.c b/ANDROID_3.4.5/tools/perf/builtin-script.c deleted file mode 100644 index d4ce733b..00000000 --- a/ANDROID_3.4.5/tools/perf/builtin-script.c +++ /dev/null @@ -1,1409 +0,0 @@ -#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 <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; -extern const struct option record_options[]; -static bool no_callchain; -static bool show_full_info; -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, -}; - -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}, -}; - -/* default set to maintain compatibility with current format */ -static struct { - bool user_set; - bool wildcard_set; - 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, - - .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, - - .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, - - .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_event_attr__check_stype(struct perf_event_attr *attr, - u64 sample_type, const char *sample_msg, - enum perf_output_field field) -{ - int type = attr->type; - const char *evname; - - if (attr->sample_type & sample_type) - return 0; - - if (output[type].user_set) { - evname = __event_name(attr->type, attr->config); - 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 = __event_name(attr->type, attr->config); - 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_event_attr__check_stype(attr, PERF_SAMPLE_IP, "IP", - PERF_OUTPUT_IP)) - return -EINVAL; - - if (!no_callchain && - !(attr->sample_type & PERF_SAMPLE_CALLCHAIN)) - symbol_conf.use_callchain = false; - } - - if (PRINT_FIELD(ADDR) && - perf_event_attr__check_stype(attr, 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(PID) || PRINT_FIELD(TID)) && - perf_event_attr__check_stype(attr, PERF_SAMPLE_TID, "TID", - PERF_OUTPUT_TID|PERF_OUTPUT_PID)) - return -EINVAL; - - if (PRINT_FIELD(TIME) && - perf_event_attr__check_stype(attr, PERF_SAMPLE_TIME, "TIME", - PERF_OUTPUT_TIME)) - return -EINVAL; - - if (PRINT_FIELD(CPU) && - perf_event_attr__check_stype(attr, PERF_SAMPLE_CPU, "CPU", - PERF_OUTPUT_CPU)) - return -EINVAL; - - return 0; -} - -/* - * 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; - } - - return 0; -} - -static void print_sample_start(struct perf_sample *sample, - struct thread *thread, - struct perf_event_attr *attr) -{ - int type; - struct event *event; - const char *evname = NULL; - unsigned long secs; - unsigned long usecs; - unsigned long long nsecs; - - if (PRINT_FIELD(COMM)) { - if (latency_format) - printf("%8.8s ", thread->comm); - else if (PRINT_FIELD(IP) && symbol_conf.use_callchain) - printf("%s ", thread->comm); - else - printf("%16s ", thread->comm); - } - - 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); - } - - if (PRINT_FIELD(EVNAME)) { - if (attr->type == PERF_TYPE_TRACEPOINT) { - type = trace_parse_common_type(sample->raw_data); - event = trace_find_event(type); - if (event) - evname = event->name; - } else - evname = __event_name(attr->type, attr->config); - - printf("%s: ", evname ? evname : "[unknown]"); - } -} - -static bool is_bts_event(struct perf_event_attr *attr) -{ - return ((attr->type == PERF_TYPE_HARDWARE) && - (attr->config & PERF_COUNT_HW_BRANCH_INSTRUCTIONS) && - (attr->sample_period == 1)); -} - -static bool sample_addr_correlates_sym(struct perf_event_attr *attr) -{ - if ((attr->type == PERF_TYPE_SOFTWARE) && - ((attr->config == PERF_COUNT_SW_PAGE_FAULTS) || - (attr->config == PERF_COUNT_SW_PAGE_FAULTS_MIN) || - (attr->config == PERF_COUNT_SW_PAGE_FAULTS_MAJ))) - return true; - - if (is_bts_event(attr)) - return true; - - return false; -} - -static void print_sample_addr(union perf_event *event, - struct perf_sample *sample, - struct machine *machine, - struct thread *thread, - struct perf_event_attr *attr) -{ - struct addr_location al; - u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; - - printf("%16" PRIx64, sample->addr); - - if (!sample_addr_correlates_sym(attr)) - return; - - thread__find_addr_map(thread, machine, cpumode, MAP__FUNCTION, - sample->addr, &al); - if (!al.map) - thread__find_addr_map(thread, machine, cpumode, MAP__VARIABLE, - sample->addr, &al); - - al.cpu = sample->cpu; - al.sym = NULL; - - if (al.map) - al.sym = map__find_symbol(al.map, al.addr, NULL); - - 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 machine *machine, - struct thread *thread) -{ - struct perf_event_attr *attr = &evsel->attr; - - /* print branch_from information */ - if (PRINT_FIELD(IP)) { - if (!symbol_conf.use_callchain) - printf(" "); - else - printf("\n"); - perf_event__print_ip(event, sample, machine, evsel, - PRINT_FIELD(SYM), PRINT_FIELD(DSO), - PRINT_FIELD(SYMOFFSET)); - } - - printf(" => "); - - /* print branch_to information */ - if (PRINT_FIELD(ADDR)) - print_sample_addr(event, sample, machine, thread, attr); - - printf("\n"); -} - -static void process_event(union perf_event *event __unused, - struct perf_sample *sample, - struct perf_evsel *evsel, - struct machine *machine, - struct thread *thread) -{ - struct perf_event_attr *attr = &evsel->attr; - - if (output[attr->type].fields == 0) - return; - - print_sample_start(sample, thread, attr); - - if (is_bts_event(attr)) { - print_sample_bts(event, sample, evsel, machine, thread); - return; - } - - if (PRINT_FIELD(TRACE)) - print_trace_event(sample->cpu, sample->raw_data, - sample->raw_size); - - if (PRINT_FIELD(ADDR)) - print_sample_addr(event, sample, machine, thread, attr); - - if (PRINT_FIELD(IP)) { - if (!symbol_conf.use_callchain) - printf(" "); - else - printf("\n"); - perf_event__print_ip(event, sample, machine, evsel, - PRINT_FIELD(SYM), PRINT_FIELD(DSO), - PRINT_FIELD(SYMOFFSET)); - } - - printf("\n"); -} - -static int default_start_script(const char *script __unused, - int argc __unused, - const char **argv __unused) -{ - return 0; -} - -static int default_stop_script(void) -{ - return 0; -} - -static int default_generate_script(const char *outfile __unused) -{ - return 0; -} - -static struct scripting_ops default_scripting_ops = { - .start_script = default_start_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 cleanup_scripting(void) -{ - pr_debug("\nperf script stopped\n"); - - return scripting_ops->stop_script(); -} - -static const char *input_name; - -static int process_sample_event(struct perf_tool *tool __used, - 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, event->ip.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) < 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, machine, thread); - - evsel->hists.stats.total_period += sample->period; - return 0; -} - -static struct perf_tool perf_script = { - .sample = process_sample_event, - .mmap = perf_event__process_mmap, - .comm = perf_event__process_comm, - .exit = perf_event__process_task, - .fork = perf_event__process_task, - .attr = perf_event__process_attr, - .event_type = perf_event__process_event_type, - .tracing_data = perf_event__process_tracing_data, - .build_id = perf_event__process_build_id, - .ordered_samples = true, - .ordering_requires_timestamps = true, -}; - -extern volatile int session_done; - -static void sig_handler(int sig __unused) -{ - session_done = 1; -} - -static int __cmd_script(struct perf_session *session) -{ - int ret; - - signal(SIGINT, sig_handler); - - ret = perf_session__process_events(session, &perf_script); - - 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 __used, - const char *str, int unset __used) -{ - 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 __used, - const char *arg, int unset __used) -{ - char *tok; - int i, imax = sizeof(all_output_options) / sizeof(struct output_option); - 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) -{ - free(s->name); - free(s->half_liner); - free(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 char *ltrim(char *str) -{ - int len = strlen(str); - - while (len && isspace(*str)) { - len--; - str++; - } - - return str; -} - -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 __used, - const char *s __used, int unset __used) -{ - 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); -} - -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 const char * const 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 -}; - -static 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_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", - parse_output_fields), - OPT_BOOLEAN('a', "all-cpus", &system_wide, - "system-wide collection from all CPUs"), - 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_END() -}; - -static bool have_cmd(int argc, const char **argv) -{ - char **__argv = malloc(sizeof(const char *) * argc); - - if (!__argv) - die("malloc"); - 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); - - return argc != 0; -} - -int cmd_script(int argc, const char **argv, const char *prefix __used) -{ - 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; - - setup_scripting(); - - argc = parse_options(argc, argv, options, script_usage, - PARSE_OPT_STOP_AT_NON_OPTION); - - 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"); - exit(-1); - } - - pid = fork(); - if (pid < 0) { - perror("failed to fork"); - exit(-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) { - system_wide = !have_cmd(argc - rep_args, - &argv[rep_args]); - } - - __argv = malloc((argc + 6) * sizeof(const char *)); - if (!__argv) - die("malloc"); - - __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) - die("malloc"); - 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) - system_wide = !have_cmd(argc - 1, &argv[1]); - - __argv = malloc((argc + 2) * sizeof(const char *)); - if (!__argv) - die("malloc"); - __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 (symbol__init() < 0) - return -1; - if (!script_name) - setup_pager(); - - session = perf_session__new(input_name, O_RDONLY, 0, false, &perf_script); - if (session == NULL) - return -ENOMEM; - - if (cpu_list) { - if (perf_session__cpu_bitmap(session, cpu_list, cpu_bitmap)) - return -1; - } - - perf_session__fprintf_info(session, stdout, show_full_info); - - 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"); - return -1; - } - - input = open(session->filename, O_RDONLY); /* input_name */ - if (input < 0) { - perror("failed to open file"); - exit(-1); - } - - err = fstat(input, &perf_stat); - if (err < 0) { - perror("failed to stat file"); - exit(-1); - } - - if (!perf_stat.st_size) { - fprintf(stderr, "zero-sized file, nothing to do!\n"); - exit(0); - } - - scripting_ops = script_spec__lookup(generate_script_lang); - if (!scripting_ops) { - fprintf(stderr, "invalid language specifier"); - return -1; - } - - err = scripting_ops->generate_script("perf-script"); - goto out; - } - - if (script_name) { - err = scripting_ops->start_script(script_name, argc, argv); - if (err) - goto out; - pr_debug("perf script started with script %s\n\n", script_name); - } - - - err = perf_session__check_output_opt(session); - if (err < 0) - goto out; - - err = __cmd_script(session); - - perf_session__delete(session); - cleanup_scripting(); -out: - return err; -} |