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-rw-r--r--tools/perf/builtin-record.c63
1 files changed, 49 insertions, 14 deletions
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 003255910c05..65681a1a292a 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -51,7 +51,6 @@
#include <signal.h>
#include <sys/mman.h>
#include <sys/wait.h>
-#include <asm/bug.h>
#include <linux/time64.h>
struct switch_output {
@@ -79,6 +78,7 @@ struct record {
bool no_buildid_cache_set;
bool buildid_all;
bool timestamp_filename;
+ bool timestamp_boundary;
struct switch_output switch_output;
unsigned long long samples;
};
@@ -301,7 +301,7 @@ static int record__mmap_evlist(struct record *rec,
struct record_opts *opts = &rec->opts;
char msg[512];
- if (perf_evlist__mmap_ex(evlist, opts->mmap_pages, false,
+ if (perf_evlist__mmap_ex(evlist, opts->mmap_pages,
opts->auxtrace_mmap_pages,
opts->auxtrace_snapshot_mode) < 0) {
if (errno == EPERM) {
@@ -372,6 +372,8 @@ try_again:
ui__error("%s\n", msg);
goto out;
}
+
+ pos->supported = true;
}
if (perf_evlist__apply_filters(evlist, &pos)) {
@@ -408,8 +410,15 @@ static int process_sample_event(struct perf_tool *tool,
{
struct record *rec = container_of(tool, struct record, tool);
- rec->samples++;
+ if (rec->evlist->first_sample_time == 0)
+ rec->evlist->first_sample_time = sample->time;
+
+ rec->evlist->last_sample_time = sample->time;
+ if (rec->buildid_all)
+ return 0;
+
+ rec->samples++;
return build_id__mark_dso_hit(tool, event, sample, evsel, machine);
}
@@ -434,9 +443,11 @@ static int process_buildids(struct record *rec)
/*
* If --buildid-all is given, it marks all DSO regardless of hits,
- * so no need to process samples.
+ * so no need to process samples. But if timestamp_boundary is enabled,
+ * it still needs to walk on all samples to get the timestamps of
+ * first/last samples.
*/
- if (rec->buildid_all)
+ if (rec->buildid_all && !rec->timestamp_boundary)
rec->tool.sample = NULL;
return perf_session__process_events(session);
@@ -477,7 +488,7 @@ static struct perf_event_header finished_round_event = {
};
static int record__mmap_read_evlist(struct record *rec, struct perf_evlist *evlist,
- bool backward)
+ bool overwrite)
{
u64 bytes_written = rec->bytes_written;
int i;
@@ -487,18 +498,18 @@ static int record__mmap_read_evlist(struct record *rec, struct perf_evlist *evli
if (!evlist)
return 0;
- maps = backward ? evlist->backward_mmap : evlist->mmap;
+ maps = overwrite ? evlist->overwrite_mmap : evlist->mmap;
if (!maps)
return 0;
- if (backward && evlist->bkw_mmap_state != BKW_MMAP_DATA_PENDING)
+ if (overwrite && evlist->bkw_mmap_state != BKW_MMAP_DATA_PENDING)
return 0;
for (i = 0; i < evlist->nr_mmaps; i++) {
struct auxtrace_mmap *mm = &maps[i].auxtrace_mmap;
if (maps[i].base) {
- if (perf_mmap__push(&maps[i], evlist->overwrite, backward, rec, record__pushfn) != 0) {
+ if (perf_mmap__push(&maps[i], overwrite, rec, record__pushfn) != 0) {
rc = -1;
goto out;
}
@@ -518,7 +529,7 @@ static int record__mmap_read_evlist(struct record *rec, struct perf_evlist *evli
if (bytes_written != rec->bytes_written)
rc = record__write(rec, &finished_round_event, sizeof(finished_round_event));
- if (backward)
+ if (overwrite)
perf_evlist__toggle_bkw_mmap(evlist, BKW_MMAP_EMPTY);
out:
return rc;
@@ -690,8 +701,8 @@ perf_evlist__pick_pc(struct perf_evlist *evlist)
if (evlist) {
if (evlist->mmap && evlist->mmap[0].base)
return evlist->mmap[0].base;
- if (evlist->backward_mmap && evlist->backward_mmap[0].base)
- return evlist->backward_mmap[0].base;
+ if (evlist->overwrite_mmap && evlist->overwrite_mmap[0].base)
+ return evlist->overwrite_mmap[0].base;
}
return NULL;
}
@@ -784,6 +795,28 @@ static int record__synthesize(struct record *rec, bool tail)
perf_event__synthesize_guest_os, tool);
}
+ err = perf_event__synthesize_extra_attr(&rec->tool,
+ rec->evlist,
+ process_synthesized_event,
+ data->is_pipe);
+ if (err)
+ goto out;
+
+ err = perf_event__synthesize_thread_map2(&rec->tool, rec->evlist->threads,
+ process_synthesized_event,
+ NULL);
+ if (err < 0) {
+ pr_err("Couldn't synthesize thread map.\n");
+ return err;
+ }
+
+ err = perf_event__synthesize_cpu_map(&rec->tool, rec->evlist->cpus,
+ process_synthesized_event, NULL);
+ if (err < 0) {
+ pr_err("Couldn't synthesize cpu map.\n");
+ return err;
+ }
+
err = __machine__synthesize_threads(machine, tool, &opts->target, rec->evlist->threads,
process_synthesized_event, opts->sample_address,
opts->proc_map_timeout, 1);
@@ -1598,6 +1631,8 @@ static struct option __record_options[] = {
"Record build-id of all DSOs regardless of hits"),
OPT_BOOLEAN(0, "timestamp-filename", &record.timestamp_filename,
"append timestamp to output filename"),
+ OPT_BOOLEAN(0, "timestamp-boundary", &record.timestamp_boundary,
+ "Record timestamp boundary (time of first/last samples)"),
OPT_STRING_OPTARG_SET(0, "switch-output", &record.switch_output.str,
&record.switch_output.set, "signal,size,time",
"Switch output when receive SIGUSR2 or cross size,time threshold",
@@ -1781,8 +1816,8 @@ int cmd_record(int argc, const char **argv)
goto out;
}
- /* Enable ignoring missing threads when -u option is defined. */
- rec->opts.ignore_missing_thread = rec->opts.target.uid != UINT_MAX;
+ /* Enable ignoring missing threads when -u/-p option is defined. */
+ rec->opts.ignore_missing_thread = rec->opts.target.uid != UINT_MAX || rec->opts.target.pid;
err = -ENOMEM;
if (perf_evlist__create_maps(rec->evlist, &rec->opts.target) < 0)
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-12 16:50:33 +0100