static int __cmd_diff(void)
{
int ret, i;
struct perf_session *session[2];
session[0] = perf_session__new(input_old, O_RDONLY, force);
session[1] = perf_session__new(input_new, O_RDONLY, force);
if (session[0] == NULL || session[1] == NULL)
return -ENOMEM;
for (i = 0; i < 2; ++i) {
ret = perf_session__process_events(session[i], &event_ops);
if (ret)
goto out_delete;
perf_session__output_resort(session[i], session[i]->events_stats.total);
}
perf_session__match_hists(session[0], session[1]);
perf_session__fprintf_hists(session[1], session[0],
show_displacement, stdout);
out_delete:
for (i = 0; i < 2; ++i)
perf_session__delete(session[i]);
return ret;
}
static int __cmd_diff(void)
{
int ret, i;
struct perf_session *session[2];
session[0] = perf_session__new(input_old, O_RDONLY, force, false);
session[1] = perf_session__new(input_new, O_RDONLY, force, false);
if (session[0] == NULL || session[1] == NULL)
return -ENOMEM;
for (i = 0; i < 2; ++i) {
ret = perf_session__process_events(session[i], &event_ops);
if (ret)
goto out_delete;
}
hists__output_resort(&session[1]->hists);
if (show_displacement)
hists__set_positions(&session[0]->hists);
hists__match(&session[0]->hists, &session[1]->hists);
hists__fprintf(&session[1]->hists, &session[0]->hists,
show_displacement, stdout);
out_delete:
for (i = 0; i < 2; ++i)
perf_session__delete(session[i]);
return ret;
}
static int __cmd_timechart(void)
{
struct perf_session *session = perf_session__new(input_name, O_RDONLY, 0);
int ret;
if (session == NULL)
return -ENOMEM;
register_perf_file_handler(&file_handler);
ret = perf_session__process_events(session, 0, &event__cwdlen, &event__cwd);
if (ret)
goto out_delete;
process_samples();
end_sample_processing();
sort_pids();
write_svg_file(output_name);
pr_info("Written %2.1f seconds of trace to %s.\n",
(last_time - first_time) / 1000000000.0, output_name);
out_delete:
perf_session__delete(session);
return ret;
}
static int perf_session__list_build_ids(void)
{
struct perf_session *session;
elf_version(EV_CURRENT);
session = perf_session__new(input_name, O_RDONLY, force, false,
&build_id__mark_dso_hit_ops);
if (session == NULL)
return -1;
/*
* See if this is an ELF file first:
*/
if (filename__fprintf_build_id(session->filename, stdout))
goto out;
if (with_hits)
perf_session__process_events(session, &build_id__mark_dso_hit_ops);
perf_session__fprintf_dsos_buildid(session, stdout, with_hits);
out:
perf_session__delete(session);
return 0;
}
static int perf_session__list_build_ids(bool force, bool with_hits)
{
struct perf_session *session;
symbol__elf_init();
/*
* See if this is an ELF file first:
*/
if (filename__fprintf_build_id(input_name, stdout))
goto out;
session = perf_session__new(input_name, O_RDONLY, force, false,
&build_id__mark_dso_hit_ops);
if (session == NULL)
return -1;
/*
* in pipe-mode, the only way to get the buildids is to parse
* the record stream. Buildids are stored as RECORD_HEADER_BUILD_ID
*/
if (with_hits || session->fd_pipe)
perf_session__process_events(session, &build_id__mark_dso_hit_ops);
perf_session__fprintf_dsos_buildid(session, stdout, dso__skip_buildid, with_hits);
perf_session__delete(session);
out:
return 0;
}
static int __cmd_annotate(void)
{
int ret;
struct perf_session *session;
session = perf_session__new(input_name, O_RDONLY, force);
if (session == NULL)
return -ENOMEM;
ret = perf_session__process_events(session, &event_ops);
if (ret)
goto out_delete;
if (dump_trace) {
event__print_totals();
goto out_delete;
}
if (verbose > 3)
perf_session__fprintf(session, stdout);
if (verbose > 2)
dsos__fprintf(stdout);
perf_session__collapse_resort(session);
perf_session__output_resort(session, session->event_total[0]);
perf_session__find_annotations(session);
out_delete:
perf_session__delete(session);
return ret;
}
static int __cmd_evlist(const char *file_name, struct perf_attr_details *details)
{
struct perf_session *session;
struct perf_evsel *pos;
struct perf_data_file file = {
.path = file_name,
.mode = PERF_DATA_MODE_READ,
.force = details->force,
};
session = perf_session__new(&file, 0, NULL);
if (session == NULL)
return -1;
evlist__for_each(session->evlist, pos)
perf_evsel__fprintf(pos, details, stdout);
perf_session__delete(session);
return 0;
}
int cmd_evlist(int argc, const char **argv, const char *prefix __maybe_unused)
{
struct perf_attr_details details = { .verbose = false, };
const struct option options[] = {
OPT_STRING('i', "input", &input_name, "file", "Input file name"),
OPT_BOOLEAN('F', "freq", &details.freq, "Show the sample frequency"),
OPT_BOOLEAN('v', "verbose", &details.verbose,
"Show all event attr details"),
OPT_BOOLEAN('g', "group", &details.event_group,
"Show event group information"),
OPT_BOOLEAN('f', "force", &details.force, "don't complain, do it"),
OPT_END()
};
const char * const evlist_usage[] = {
"perf evlist [<options>]",
NULL
};
argc = parse_options(argc, argv, options, evlist_usage, 0);
if (argc)
usage_with_options(evlist_usage, options);
if (details.event_group && (details.verbose || details.freq)) {
usage_with_options_msg(evlist_usage, options,
"--group option is not compatible with other options\n");
}
return __cmd_evlist(input_name, &details);
}
static int __cmd_evlist(void)
{
struct perf_session *session;
struct perf_evsel *pos;
session = perf_session__new(input_name, O_RDONLY, 0, false, NULL);
if (session == NULL)
return -ENOMEM;
list_for_each_entry(pos, &session->evlist->entries, node)
printf("%s\n", event_name(pos));
perf_session__delete(session);
return 0;
}
static int build_id_cache__fprintf_missing(const char *filename, bool force, FILE *fp)
{
struct perf_data_file file = {
.path = filename,
.mode = PERF_DATA_MODE_READ,
.force = force,
};
struct perf_session *session = perf_session__new(&file, false, NULL);
if (session == NULL)
return -1;
perf_session__fprintf_dsos_buildid(session, fp, dso__missing_buildid_cache, 0);
perf_session__delete(session);
return 0;
}
static int __cmd_buildid_list(void)
{
int err = -1;
struct perf_session *session = perf_session__new(input_name, O_RDONLY, force);
if (session == NULL)
return -1;
err = perf_header__process_sections(&session->header, session->fd,
perf_file_section__process_buildids);
if (err >= 0)
dsos__fprintf_buildid(stdout);
perf_session__delete(session);
return err;
}
static int __cmd_buildid_list(void)
{
int err = -1;
struct perf_session *session;
session = perf_session__new(input_name, O_RDONLY, force);
if (session == NULL)
return -1;
if (with_hits)
perf_session__process_events(session, &build_id__mark_dso_hit_ops);
dsos__fprintf_buildid(stdout, with_hits);
perf_session__delete(session);
return err;
}
static int perf_session__list_build_ids(void)
{
struct perf_session *session;
session = perf_session__new(input_name, O_RDONLY, force, false,
&build_id__mark_dso_hit_ops);
if (session == NULL)
return -1;
if (with_hits)
perf_session__process_events(session, &build_id__mark_dso_hit_ops);
perf_session__fprintf_dsos_buildid(session, stdout, with_hits);
perf_session__delete(session);
return 0;
}
static int perf_session__list_build_ids(bool force, bool with_hits)
{
struct perf_session *session;
struct perf_data_file file = {
.path = input_name,
.mode = PERF_DATA_MODE_READ,
.force = force,
};
symbol__elf_init();
/*
* See if this is an ELF file first:
*/
if (filename__fprintf_build_id(input_name, stdout) > 0)
goto out;
session = perf_session__new(&file, false, &build_id__mark_dso_hit_ops);
if (session == NULL)
return -1;
/*
* We take all buildids when the file contains AUX area tracing data
* because we do not decode the trace because it would take too long.
*/
if (!perf_data_file__is_pipe(&file) &&
perf_header__has_feat(&session->header, HEADER_AUXTRACE))
with_hits = false;
/*
* in pipe-mode, the only way to get the buildids is to parse
* the record stream. Buildids are stored as RECORD_HEADER_BUILD_ID
*/
if (with_hits || perf_data_file__is_pipe(&file))
perf_session__process_events(session);
perf_session__fprintf_dsos_buildid(session, stdout, dso__skip_buildid, with_hits);
perf_session__delete(session);
out:
return 0;
}
static int __cmd_record(int argc, const char **argv)
{
int i, counter;
struct stat st;
pid_t pid = 0;
int flags;
int err;
unsigned long waking = 0;
page_size = sysconf(_SC_PAGE_SIZE);
nr_cpus = sysconf(_SC_NPROCESSORS_ONLN);
assert(nr_cpus <= MAX_NR_CPUS);
assert(nr_cpus >= 0);
atexit(sig_atexit);
signal(SIGCHLD, sig_handler);
signal(SIGINT, sig_handler);
if (!stat(output_name, &st) && st.st_size) {
if (!force && !append_file) {
fprintf(stderr, "Error, output file %s exists, use -A to append or -f to overwrite.\n",
output_name);
exit(-1);
}
} else {
append_file = 0;
}
flags = O_CREAT|O_RDWR;
if (append_file)
file_new = 0;
else
flags |= O_TRUNC;
output = open(output_name, flags, S_IRUSR|S_IWUSR);
if (output < 0) {
perror("failed to create output file");
exit(-1);
}
session = perf_session__new(output_name, O_WRONLY, force);
if (session == NULL) {
pr_err("Not enough memory for reading perf file header\n");
return -1;
}
if (!file_new) {
err = perf_header__read(&session->header, output);
if (err < 0)
return err;
}
if (raw_samples) {
perf_header__set_feat(&session->header, HEADER_TRACE_INFO);
} else {
for (i = 0; i < nr_counters; i++) {
if (attrs[i].sample_type & PERF_SAMPLE_RAW) {
perf_header__set_feat(&session->header, HEADER_TRACE_INFO);
break;
}
}
}
atexit(atexit_header);
if (!system_wide) {
pid = target_pid;
if (pid == -1)
pid = getpid();
open_counters(profile_cpu, pid);
} else {
if (profile_cpu != -1) {
open_counters(profile_cpu, target_pid);
} else {
for (i = 0; i < nr_cpus; i++)
open_counters(i, target_pid);
}
}
if (file_new) {
err = perf_header__write(&session->header, output, false);
if (err < 0)
return err;
}
if (!system_wide)
event__synthesize_thread(pid, process_synthesized_event);
else
event__synthesize_threads(process_synthesized_event);
if (target_pid == -1 && argc) {
pid = fork();
if (pid < 0)
die("failed to fork");
if (!pid) {
if (execvp(argv[0], (char **)argv)) {
perror(argv[0]);
exit(-1);
}
} else {
/*
* Wait a bit for the execv'ed child to appear
* and be updated in /proc
* FIXME: Do you know a less heuristical solution?
*/
usleep(1000);
event__synthesize_thread(pid,
process_synthesized_event);
}
child_pid = pid;
}
if (realtime_prio) {
struct sched_param param;
param.sched_priority = realtime_prio;
if (sched_setscheduler(0, SCHED_FIFO, ¶m)) {
pr_err("Could not set realtime priority.\n");
exit(-1);
}
}
for (;;) {
int hits = samples;
for (i = 0; i < nr_cpu; i++) {
for (counter = 0; counter < nr_counters; counter++) {
if (mmap_array[i][counter].base)
mmap_read(&mmap_array[i][counter]);
}
}
if (hits == samples) {
if (done)
break;
err = poll(event_array, nr_poll, -1);
waking++;
}
if (done) {
for (i = 0; i < nr_cpu; i++) {
for (counter = 0; counter < nr_counters; counter++)
ioctl(fd[i][counter], PERF_EVENT_IOC_DISABLE);
}
}
}
fprintf(stderr, "[ perf record: Woken up %ld times to write data ]\n", waking);
/*
* Approximate RIP event size: 24 bytes.
*/
fprintf(stderr,
"[ perf record: Captured and wrote %.3f MB %s (~%lld samples) ]\n",
(double)bytes_written / 1024.0 / 1024.0,
output_name,
bytes_written / 24);
return 0;
}
int cmd_buildid_cache(int argc, const char **argv)
{
struct strlist *list;
struct str_node *pos;
int ret = 0;
int ns_id = -1;
bool force = false;
char const *add_name_list_str = NULL,
*remove_name_list_str = NULL,
*purge_name_list_str = NULL,
*missing_filename = NULL,
*update_name_list_str = NULL,
*kcore_filename = NULL;
char sbuf[STRERR_BUFSIZE];
struct perf_data data = {
.mode = PERF_DATA_MODE_READ,
};
struct perf_session *session = NULL;
struct nsinfo *nsi = NULL;
const struct option buildid_cache_options[] = {
OPT_STRING('a', "add", &add_name_list_str,
"file list", "file(s) to add"),
OPT_STRING('k', "kcore", &kcore_filename,
"file", "kcore file to add"),
OPT_STRING('r', "remove", &remove_name_list_str, "file list",
"file(s) to remove"),
OPT_STRING('p', "purge", &purge_name_list_str, "path list",
"path(s) to remove (remove old caches too)"),
OPT_STRING('M', "missing", &missing_filename, "file",
"to find missing build ids in the cache"),
OPT_BOOLEAN('f', "force", &force, "don't complain, do it"),
OPT_STRING('u', "update", &update_name_list_str, "file list",
"file(s) to update"),
OPT_INCR('v', "verbose", &verbose, "be more verbose"),
OPT_INTEGER(0, "target-ns", &ns_id, "target pid for namespace context"),
OPT_END()
};
const char * const buildid_cache_usage[] = {
"perf buildid-cache [<options>]",
NULL
};
argc = parse_options(argc, argv, buildid_cache_options,
buildid_cache_usage, 0);
if (argc || (!add_name_list_str && !kcore_filename &&
!remove_name_list_str && !purge_name_list_str &&
!missing_filename && !update_name_list_str))
usage_with_options(buildid_cache_usage, buildid_cache_options);
if (ns_id > 0)
nsi = nsinfo__new(ns_id);
if (missing_filename) {
data.file.path = missing_filename;
data.force = force;
session = perf_session__new(&data, false, NULL);
if (session == NULL)
return -1;
}
if (symbol__init(session ? &session->header.env : NULL) < 0)
goto out;
setup_pager();
if (add_name_list_str) {
list = strlist__new(add_name_list_str, NULL);
if (list) {
strlist__for_each_entry(pos, list)
if (build_id_cache__add_file(pos->s, nsi)) {
if (errno == EEXIST) {
pr_debug("%s already in the cache\n",
pos->s);
continue;
}
pr_warning("Couldn't add %s: %s\n",
pos->s, str_error_r(errno, sbuf, sizeof(sbuf)));
}
strlist__delete(list);
}
}
if (remove_name_list_str) {
list = strlist__new(remove_name_list_str, NULL);
if (list) {
strlist__for_each_entry(pos, list)
if (build_id_cache__remove_file(pos->s, nsi)) {
if (errno == ENOENT) {
pr_debug("%s wasn't in the cache\n",
pos->s);
continue;
}
pr_warning("Couldn't remove %s: %s\n",
pos->s, str_error_r(errno, sbuf, sizeof(sbuf)));
}
strlist__delete(list);
}
}
if (purge_name_list_str) {
list = strlist__new(purge_name_list_str, NULL);
if (list) {
strlist__for_each_entry(pos, list)
if (build_id_cache__purge_path(pos->s, nsi)) {
if (errno == ENOENT) {
pr_debug("%s wasn't in the cache\n",
pos->s);
continue;
}
pr_warning("Couldn't remove %s: %s\n",
pos->s, str_error_r(errno, sbuf, sizeof(sbuf)));
}
strlist__delete(list);
}
}
if (missing_filename)
ret = build_id_cache__fprintf_missing(session, stdout);
if (update_name_list_str) {
list = strlist__new(update_name_list_str, NULL);
if (list) {
strlist__for_each_entry(pos, list)
if (build_id_cache__update_file(pos->s, nsi)) {
if (errno == ENOENT) {
pr_debug("%s wasn't in the cache\n",
pos->s);
continue;
}
pr_warning("Couldn't update %s: %s\n",
pos->s, str_error_r(errno, sbuf, sizeof(sbuf)));
}
strlist__delete(list);
}
}
if (kcore_filename && build_id_cache__add_kcore(kcore_filename, force))
pr_warning("Couldn't add %s\n", kcore_filename);
out:
perf_session__delete(session);
nsinfo__zput(nsi);
return ret;
}
static const struct option options[] = {
OPT_BOOLEAN('H', "with-hits", &with_hits, "Show only DSOs with hits"),
OPT_STRING('i', "input", &input_name, "file",
"input file name"),
OPT_BOOLEAN('f', "force", &force, "don't complain, do it"),
OPT_INCR('v', "verbose", &verbose,
"be more verbose"),
OPT_END()
};
static int __cmd_buildid_list(void)
{
<<<<<<< HEAD
struct perf_session *session;
session = perf_session__new(input_name, O_RDONLY, force, false,
&build_id__mark_dso_hit_ops);
if (session == NULL)
return -1;
if (with_hits)
perf_session__process_events(session, &build_id__mark_dso_hit_ops);
=======
int err = -1;
struct perf_session *session;
session = perf_session__new(input_name, O_RDONLY, force, false);
if (session == NULL)
return -1;
if (with_hits) {
symbol_conf.full_paths = true;