1 // SPDX-License-Identifier: GPL-2.0-only
8 #include "data-convert.h"
31 #include <traceevent/event-parse.h>
41 // Outputs a JSON-encoded string surrounded by quotes with characters escaped.
71 // Outputs an optional comma, newline and indentation to delimit a new value
84 // Outputs a printf format string (with delimiter) as a JSON value.
96 // Outputs a JSON key-value pair where the value is a string.
106 // Outputs a JSON key-value pair where the value is a printf format string.
125 	FILE *out = c->out;  in output_sample_callchain_entry()
130 	if (al && al->sym && al->sym->namelen) {  in output_sample_callchain_entry()
131 		struct dso *dso = al->map ? map__dso(al->map) : NULL;  in output_sample_callchain_entry()
134 		output_json_key_string(out, false, 5, "symbol", al->sym->name);  in output_sample_callchain_entry()
156 	FILE *out = c->out;  in process_sample_event()
158 	u64 sample_type = __evlist__combined_sample_type(evsel->evlist);  in process_sample_event()
165 		return -1;  in process_sample_event()
168 	++c->events_count;  in process_sample_event()
170 	if (c->first)  in process_sample_event()
171 		c->first = false;  in process_sample_event()
176 	output_json_key_format(out, false, 3, "timestamp", "%" PRIi64, sample->time);  in process_sample_event()
181 		output_json_key_format(out, true, 3, "cpu", "%i", sample->cpu);  in process_sample_event()
188 	if (sample->callchain) {  in process_sample_event()
193 		for (i = 0; i < sample->callchain->nr; ++i) {  in process_sample_event()
194 			u64 ip = sample->callchain->ips[i];  in process_sample_event()
227 		output_sample_callchain_entry(tool, sample->ip, &al);  in process_sample_event()
232 	if (sample->raw_data) {  in process_sample_event()
236 		fields = tep_event_fields(evsel->tp_format);  in process_sample_event()
243 				tep_print_field(&s, sample->raw_data, fields[i]);  in process_sample_event()
244 				output_json_key_string(out, true, 3, fields[i]->name, s.buffer);  in process_sample_event()
260 	struct perf_header *header = &session->header;  in output_headers()
262 	int fd = perf_data__fd(session->data);  in output_headers()
264 	FILE *out = c->out;  in output_headers()
266 	output_json_key_format(out, false, 2, "header-version", "%u", header->version);  in output_headers()
274 		output_json_key_string(out, true, 2, "captured-on", buf);  in output_headers()
276 		pr_debug("Failed to get mtime of source file, not writing captured-on");  in output_headers()
279 	output_json_key_format(out, true, 2, "data-offset", "%" PRIu64, header->data_offset);  in output_headers()
280 	output_json_key_format(out, true, 2, "data-size", "%" PRIu64, header->data_size);  in output_headers()
281 	output_json_key_format(out, true, 2, "feat-offset", "%" PRIu64, header->feat_offset);  in output_headers()
283 	output_json_key_string(out, true, 2, "hostname", header->env.hostname);  in output_headers()
284 	output_json_key_string(out, true, 2, "os-release", header->env.os_release);  in output_headers()
285 	output_json_key_string(out, true, 2, "arch", header->env.arch);  in output_headers()
287 	if (header->env.cpu_desc)  in output_headers()
288 		output_json_key_string(out, true, 2, "cpu-desc", header->env.cpu_desc);  in output_headers()
290 	output_json_key_string(out, true, 2, "cpuid", header->env.cpuid);  in output_headers()
291 	output_json_key_format(out, true, 2, "nrcpus-online", "%u", header->env.nr_cpus_online);  in output_headers()
292 	output_json_key_format(out, true, 2, "nrcpus-avail", "%u", header->env.nr_cpus_avail);  in output_headers()
294 	if (header->env.clock.enabled) {  in output_headers()
296 				"%u", header->env.clock.clockid);  in output_headers()
297 		output_json_key_format(out, true, 2, "clock-time",  in output_headers()
298 				"%" PRIu64, header->env.clock.clockid_ns);  in output_headers()
299 		output_json_key_format(out, true, 2, "real-time",  in output_headers()
300 				"%" PRIu64, header->env.clock.tod_ns);  in output_headers()
303 	output_json_key_string(out, true, 2, "perf-version", header->env.version);  in output_headers()
306 	for (i = 0; i < header->env.nr_cmdline; i++) {  in output_headers()
308 		output_json_string(c->out, header->env.cmdline_argv[i]);  in output_headers()
318 	int ret = -1;  in bt_convert__perf2json()
326 		.force = opts->force,  in bt_convert__perf2json()
349 	if (opts->all) {  in bt_convert__perf2json()
350 		pr_err("--all is currently unsupported for JSON output.\n");  in bt_convert__perf2json()
353 	if (opts->tod) {  in bt_convert__perf2json()
354 		pr_err("--tod is currently unsupported for JSON output.\n");  in bt_convert__perf2json()
358 	fd = open(output_name, O_CREAT | O_WRONLY | (opts->force ? O_TRUNC : O_EXCL), 0666);  in bt_convert__perf2json()
359 	if (fd == -1) {  in bt_convert__perf2json()
361 			pr_err("Output file exists. Use --force to overwrite it.\n");  in bt_convert__perf2json()
380 	if (symbol__init(&session->header.env) < 0) {  in bt_convert__perf2json()
389 	// Version number for future-proofing. Most additions should be able to be  in bt_convert__perf2json()
390 	// done in a backwards-compatible way so this should only need to be bumped  in bt_convert__perf2json()
392 	output_json_format(c.out, false, 1, "\"linux-perf-json-version\": 1");  in bt_convert__perf2json()