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-rw-r--r--tools/perf/builtin-record.c57
1 files changed, 26 insertions, 31 deletions
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 227b6ae..75d230f 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -44,6 +44,7 @@ struct perf_record {
struct perf_evlist *evlist;
struct perf_session *session;
const char *progname;
+ const char *uid_str;
int output;
unsigned int page_size;
int realtime_prio;
@@ -208,7 +209,7 @@ fallback_missing_features:
if (opts->exclude_guest_missing)
attr->exclude_guest = attr->exclude_host = 0;
retry_sample_id:
- attr->sample_id_all = opts->sample_id_all_avail ? 1 : 0;
+ attr->sample_id_all = opts->sample_id_all_missing ? 0 : 1;
try_again:
if (perf_evsel__open(pos, evlist->cpus, evlist->threads,
opts->group, group_fd) < 0) {
@@ -227,11 +228,11 @@ try_again:
"guest or host samples.\n");
opts->exclude_guest_missing = true;
goto fallback_missing_features;
- } else if (opts->sample_id_all_avail) {
+ } else if (!opts->sample_id_all_missing) {
/*
* Old kernel, no attr->sample_id_type_all field
*/
- opts->sample_id_all_avail = false;
+ opts->sample_id_all_missing = true;
if (!opts->sample_time && !opts->raw_samples && !time_needed)
attr->sample_type &= ~PERF_SAMPLE_TIME;
@@ -396,7 +397,7 @@ static int __cmd_record(struct perf_record *rec, int argc, const char **argv)
{
struct stat st;
int flags;
- int err, output;
+ int err, output, feat;
unsigned long waking = 0;
const bool forks = argc > 0;
struct machine *machine;
@@ -463,8 +464,14 @@ static int __cmd_record(struct perf_record *rec, int argc, const char **argv)
rec->session = session;
- if (!rec->no_buildid)
- perf_header__set_feat(&session->header, HEADER_BUILD_ID);
+ for (feat = HEADER_FIRST_FEATURE; feat < HEADER_LAST_FEATURE; feat++)
+ perf_header__set_feat(&session->header, feat);
+
+ if (rec->no_buildid)
+ perf_header__clear_feat(&session->header, HEADER_BUILD_ID);
+
+ if (!have_tracepoints(&evsel_list->entries))
+ perf_header__clear_feat(&session->header, HEADER_TRACE_INFO);
if (!rec->file_new) {
err = perf_session__read_header(session, output);
@@ -472,22 +479,6 @@ static int __cmd_record(struct perf_record *rec, int argc, const char **argv)
goto out_delete_session;
}
- if (have_tracepoints(&evsel_list->entries))
- perf_header__set_feat(&session->header, HEADER_TRACE_INFO);
-
- perf_header__set_feat(&session->header, HEADER_HOSTNAME);
- perf_header__set_feat(&session->header, HEADER_OSRELEASE);
- perf_header__set_feat(&session->header, HEADER_ARCH);
- perf_header__set_feat(&session->header, HEADER_CPUDESC);
- perf_header__set_feat(&session->header, HEADER_NRCPUS);
- perf_header__set_feat(&session->header, HEADER_EVENT_DESC);
- perf_header__set_feat(&session->header, HEADER_CMDLINE);
- perf_header__set_feat(&session->header, HEADER_VERSION);
- perf_header__set_feat(&session->header, HEADER_CPU_TOPOLOGY);
- perf_header__set_feat(&session->header, HEADER_TOTAL_MEM);
- perf_header__set_feat(&session->header, HEADER_NUMA_TOPOLOGY);
- perf_header__set_feat(&session->header, HEADER_CPUID);
-
if (forks) {
err = perf_evlist__prepare_workload(evsel_list, opts, argv);
if (err < 0) {
@@ -665,13 +656,10 @@ static const char * const record_usage[] = {
*/
static struct perf_record record = {
.opts = {
- .target_pid = -1,
- .target_tid = -1,
.mmap_pages = UINT_MAX,
.user_freq = UINT_MAX,
.user_interval = ULLONG_MAX,
.freq = 1000,
- .sample_id_all_avail = true,
},
.write_mode = WRITE_FORCE,
.file_new = true,
@@ -690,9 +678,9 @@ const struct option record_options[] = {
parse_events_option),
OPT_CALLBACK(0, "filter", &record.evlist, "filter",
"event filter", parse_filter),
- OPT_INTEGER('p', "pid", &record.opts.target_pid,
+ OPT_STRING('p', "pid", &record.opts.target_pid, "pid",
"record events on existing process id"),
- OPT_INTEGER('t', "tid", &record.opts.target_tid,
+ OPT_STRING('t', "tid", &record.opts.target_tid, "tid",
"record events on existing thread id"),
OPT_INTEGER('r', "realtime", &record.realtime_prio,
"collect data with this RT SCHED_FIFO priority"),
@@ -738,6 +726,7 @@ const struct option record_options[] = {
OPT_CALLBACK('G', "cgroup", &record.evlist, "name",
"monitor event in cgroup name only",
parse_cgroups),
+ OPT_STRING('u', "uid", &record.uid_str, "user", "user to profile"),
OPT_END()
};
@@ -758,8 +747,8 @@ int cmd_record(int argc, const char **argv, const char *prefix __used)
argc = parse_options(argc, argv, record_options, record_usage,
PARSE_OPT_STOP_AT_NON_OPTION);
- if (!argc && rec->opts.target_pid == -1 && rec->opts.target_tid == -1 &&
- !rec->opts.system_wide && !rec->opts.cpu_list)
+ if (!argc && !rec->opts.target_pid && !rec->opts.target_tid &&
+ !rec->opts.system_wide && !rec->opts.cpu_list && !rec->uid_str)
usage_with_options(record_usage, record_options);
if (rec->force && rec->append_file) {
@@ -799,11 +788,17 @@ int cmd_record(int argc, const char **argv, const char *prefix __used)
goto out_symbol_exit;
}
- if (rec->opts.target_pid != -1)
+ rec->opts.uid = parse_target_uid(rec->uid_str, rec->opts.target_tid,
+ rec->opts.target_pid);
+ if (rec->uid_str != NULL && rec->opts.uid == UINT_MAX - 1)
+ goto out_free_fd;
+
+ if (rec->opts.target_pid)
rec->opts.target_tid = rec->opts.target_pid;
if (perf_evlist__create_maps(evsel_list, rec->opts.target_pid,
- rec->opts.target_tid, rec->opts.cpu_list) < 0)
+ rec->opts.target_tid, rec->opts.uid,
+ rec->opts.cpu_list) < 0)
usage_with_options(record_usage, record_options);
list_for_each_entry(pos, &evsel_list->entries, node) {
generated by cgit v1.1 at 2025-08-16 17:35:08 +0000