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Greg Kroah-Hartmanb2441312017-11-01 15:07:57 +01001// SPDX-License-Identifier: GPL-2.0
Arnaldo Carvalho de Meloa43783a2017-04-18 10:46:11 -03002#include <errno.h>
Arnaldo Carvalho de Melofd20e812017-04-17 15:23:08 -03003#include <inttypes.h>
Arnaldo Carvalho de Melo94c744b2009-12-11 21:24:02 -02004#include <linux/kernel.h>
Robert Richter4e319022013-06-11 17:29:18 +02005#include <traceevent/event-parse.h>
Alexander Shishkin05a1f472017-03-16 18:41:59 +02006#include <api/fs/fs.h>
Arnaldo Carvalho de Melo94c744b2009-12-11 21:24:02 -02007
Arnaldo Carvalho de Meloba215942010-01-14 12:23:10 -02008#include <byteswap.h>
Arnaldo Carvalho de Melo94c744b2009-12-11 21:24:02 -02009#include <unistd.h>
10#include <sys/types.h>
Arnaldo Carvalho de Meloa41794c2010-05-18 18:29:23 -030011#include <sys/mman.h>
Arnaldo Carvalho de Melo94c744b2009-12-11 21:24:02 -020012
Arnaldo Carvalho de Meloe248de32011-03-05 21:40:06 -030013#include "evlist.h"
14#include "evsel.h"
Arnaldo Carvalho de Melo98521b32017-04-25 15:45:35 -030015#include "memswap.h"
Arnaldo Carvalho de Melo94c744b2009-12-11 21:24:02 -020016#include "session.h"
Arnaldo Carvalho de Melo45694aa2011-11-28 08:30:20 -020017#include "tool.h"
Arnaldo Carvalho de Meloa3286262009-12-14 14:22:59 -020018#include "sort.h"
Arnaldo Carvalho de Melo94c744b2009-12-11 21:24:02 -020019#include "util.h"
Anton Blanchard5d67be92011-07-04 21:57:50 +100020#include "cpumap.h"
Jiri Olsa0f6a3012012-08-07 15:20:45 +020021#include "perf_regs.h"
Jiri Olsab0a45202014-06-12 09:50:11 +020022#include "asm/bug.h"
Adrian Hunterc4468702015-04-09 18:53:48 +030023#include "auxtrace.h"
Arnaldo Carvalho de Meloe7ff8922017-04-19 21:34:35 -030024#include "thread.h"
Adrian Huntera5499b32015-05-29 16:33:30 +030025#include "thread-stack.h"
Jiri Olsa2d2aea62015-10-25 15:51:42 +010026#include "stat.h"
Arnaldo Carvalho de Melo94c744b2009-12-11 21:24:02 -020027
Adrian Hunterc4468702015-04-09 18:53:48 +030028static int perf_session__deliver_event(struct perf_session *session,
29 union perf_event *event,
Adrian Hunterc4468702015-04-09 18:53:48 +030030 struct perf_tool *tool,
31 u64 file_offset);
Arnaldo Carvalho de Melod10eb1e2015-03-03 12:20:38 -030032
Arnaldo Carvalho de Melo316c7132013-11-05 15:32:36 -030033static int perf_session__open(struct perf_session *session)
Arnaldo Carvalho de Melo94c744b2009-12-11 21:24:02 -020034{
Jiri Olsa8ceb41d2017-01-23 22:07:59 +010035 struct perf_data *data = session->data;
Tom Zanussi8dc58102010-04-01 23:59:15 -050036
Arnaldo Carvalho de Melo316c7132013-11-05 15:32:36 -030037 if (perf_session__read_header(session) < 0) {
Arnaldo Carvalho de Meloe87b4912015-11-09 17:12:03 -030038 pr_err("incompatible file format (rerun with -v to learn more)\n");
Jiri Olsa6a4d98d2013-10-15 16:27:33 +020039 return -1;
Arnaldo Carvalho de Melo94c744b2009-12-11 21:24:02 -020040 }
41
Jiri Olsa8ceb41d2017-01-23 22:07:59 +010042 if (perf_data__is_pipe(data))
Jiri Olsacc9784bd2013-10-15 16:27:34 +020043 return 0;
44
Jiri Olsa3ba78bd2015-11-05 15:40:47 +010045 if (perf_header__has_feat(&session->header, HEADER_STAT))
46 return 0;
47
Arnaldo Carvalho de Melo316c7132013-11-05 15:32:36 -030048 if (!perf_evlist__valid_sample_type(session->evlist)) {
Arnaldo Carvalho de Meloe87b4912015-11-09 17:12:03 -030049 pr_err("non matching sample_type\n");
Jiri Olsa6a4d98d2013-10-15 16:27:33 +020050 return -1;
Arnaldo Carvalho de Meloc2a70652011-06-02 11:04:54 -030051 }
52
Arnaldo Carvalho de Melo316c7132013-11-05 15:32:36 -030053 if (!perf_evlist__valid_sample_id_all(session->evlist)) {
Arnaldo Carvalho de Meloe87b4912015-11-09 17:12:03 -030054 pr_err("non matching sample_id_all\n");
Jiri Olsa6a4d98d2013-10-15 16:27:33 +020055 return -1;
Arnaldo Carvalho de Meloc2a70652011-06-02 11:04:54 -030056 }
57
Arnaldo Carvalho de Melo316c7132013-11-05 15:32:36 -030058 if (!perf_evlist__valid_read_format(session->evlist)) {
Arnaldo Carvalho de Meloe87b4912015-11-09 17:12:03 -030059 pr_err("non matching read_format\n");
Jiri Olsa6a4d98d2013-10-15 16:27:33 +020060 return -1;
Jiri Olsa9ede4732012-10-10 17:38:13 +020061 }
62
Arnaldo Carvalho de Melo94c744b2009-12-11 21:24:02 -020063 return 0;
Arnaldo Carvalho de Melo94c744b2009-12-11 21:24:02 -020064}
65
Arnaldo Carvalho de Melo7b56cce2012-08-01 19:31:00 -030066void perf_session__set_id_hdr_size(struct perf_session *session)
Arnaldo Carvalho de Melo9c90a612010-12-02 10:25:28 -020067{
Arnaldo Carvalho de Melo7b56cce2012-08-01 19:31:00 -030068 u16 id_hdr_size = perf_evlist__id_hdr_size(session->evlist);
69
Arnaldo Carvalho de Melo7b56cce2012-08-01 19:31:00 -030070 machines__set_id_hdr_size(&session->machines, id_hdr_size);
Arnaldo Carvalho de Melo9c90a612010-12-02 10:25:28 -020071}
72
Arnaldo Carvalho de Melo316c7132013-11-05 15:32:36 -030073int perf_session__create_kernel_maps(struct perf_session *session)
Zhang, Yanmina1645ce2010-04-19 13:32:50 +080074{
Arnaldo Carvalho de Melo316c7132013-11-05 15:32:36 -030075 int ret = machine__create_kernel_maps(&session->machines.host);
Zhang, Yanmina1645ce2010-04-19 13:32:50 +080076
Zhang, Yanmina1645ce2010-04-19 13:32:50 +080077 if (ret >= 0)
Arnaldo Carvalho de Melo316c7132013-11-05 15:32:36 -030078 ret = machines__create_guest_kernel_maps(&session->machines);
Zhang, Yanmina1645ce2010-04-19 13:32:50 +080079 return ret;
80}
81
Arnaldo Carvalho de Melo316c7132013-11-05 15:32:36 -030082static void perf_session__destroy_kernel_maps(struct perf_session *session)
Arnaldo Carvalho de Melo076c6e452010-08-02 18:18:28 -030083{
Arnaldo Carvalho de Melo316c7132013-11-05 15:32:36 -030084 machines__destroy_kernel_maps(&session->machines);
Arnaldo Carvalho de Melo076c6e452010-08-02 18:18:28 -030085}
86
Adrian Huntercfe1c412014-07-31 09:00:45 +030087static bool perf_session__has_comm_exec(struct perf_session *session)
88{
89 struct perf_evsel *evsel;
90
Arnaldo Carvalho de Meloe5cadb92016-06-23 11:26:15 -030091 evlist__for_each_entry(session->evlist, evsel) {
Adrian Huntercfe1c412014-07-31 09:00:45 +030092 if (evsel->attr.comm_exec)
93 return true;
94 }
95
96 return false;
97}
98
99static void perf_session__set_comm_exec(struct perf_session *session)
100{
101 bool comm_exec = perf_session__has_comm_exec(session);
102
103 machines__set_comm_exec(&session->machines, comm_exec);
104}
105
Arnaldo Carvalho de Melod10eb1e2015-03-03 12:20:38 -0300106static int ordered_events__deliver_event(struct ordered_events *oe,
Arnaldo Carvalho de Melo9870d782015-03-31 12:48:16 -0300107 struct ordered_event *event)
Arnaldo Carvalho de Melod10eb1e2015-03-03 12:20:38 -0300108{
Arnaldo Carvalho de Melo9870d782015-03-31 12:48:16 -0300109 struct perf_session *session = container_of(oe, struct perf_session,
110 ordered_events);
Arnaldo Carvalho de Melo9870d782015-03-31 12:48:16 -0300111
Jiri Olsa93d10af2017-08-03 13:21:14 +0200112 return perf_session__deliver_event(session, event->event,
Adrian Hunterc4468702015-04-09 18:53:48 +0300113 session->tool, event->file_offset);
Arnaldo Carvalho de Melod10eb1e2015-03-03 12:20:38 -0300114}
115
Jiri Olsa8ceb41d2017-01-23 22:07:59 +0100116struct perf_session *perf_session__new(struct perf_data *data,
Jiri Olsaf5fc14122013-10-15 16:27:32 +0200117 bool repipe, struct perf_tool *tool)
Arnaldo Carvalho de Melo94c744b2009-12-11 21:24:02 -0200118{
Arnaldo Carvalho de Melo316c7132013-11-05 15:32:36 -0300119 struct perf_session *session = zalloc(sizeof(*session));
Robert Richterefad1412011-12-07 10:02:54 +0100120
Arnaldo Carvalho de Melo316c7132013-11-05 15:32:36 -0300121 if (!session)
Arnaldo Carvalho de Melo94c744b2009-12-11 21:24:02 -0200122 goto out;
123
Arnaldo Carvalho de Melo316c7132013-11-05 15:32:36 -0300124 session->repipe = repipe;
Arnaldo Carvalho de Melo9870d782015-03-31 12:48:16 -0300125 session->tool = tool;
Adrian Hunter99fa2982015-04-30 17:37:25 +0300126 INIT_LIST_HEAD(&session->auxtrace_index);
Arnaldo Carvalho de Melo316c7132013-11-05 15:32:36 -0300127 machines__init(&session->machines);
Arnaldo Carvalho de Melo9870d782015-03-31 12:48:16 -0300128 ordered_events__init(&session->ordered_events, ordered_events__deliver_event);
Arnaldo Carvalho de Melo94c744b2009-12-11 21:24:02 -0200129
Jiri Olsa8ceb41d2017-01-23 22:07:59 +0100130 if (data) {
131 if (perf_data__open(data))
Arnaldo Carvalho de Melo64abebf72010-01-27 21:05:52 -0200132 goto out_delete;
Jiri Olsa6a4d98d2013-10-15 16:27:33 +0200133
Jiri Olsa8ceb41d2017-01-23 22:07:59 +0100134 session->data = data;
Jiri Olsa6a4d98d2013-10-15 16:27:33 +0200135
Jiri Olsa8ceb41d2017-01-23 22:07:59 +0100136 if (perf_data__is_read(data)) {
Arnaldo Carvalho de Melo316c7132013-11-05 15:32:36 -0300137 if (perf_session__open(session) < 0)
Jiri Olsa6a4d98d2013-10-15 16:27:33 +0200138 goto out_close;
139
David Carrillo-Cisneros0973ad92017-04-10 13:14:30 -0700140 /*
141 * set session attributes that are present in perf.data
142 * but not in pipe-mode.
143 */
Jiri Olsa8ceb41d2017-01-23 22:07:59 +0100144 if (!data->is_pipe) {
David Carrillo-Cisneros0973ad92017-04-10 13:14:30 -0700145 perf_session__set_id_hdr_size(session);
146 perf_session__set_comm_exec(session);
147 }
Jiri Olsa6a4d98d2013-10-15 16:27:33 +0200148 }
Arnaldo Carvalho de Melo4cde9982015-09-09 12:25:00 -0300149 } else {
150 session->machines.host.env = &perf_env;
Jiri Olsa6a4d98d2013-10-15 16:27:33 +0200151 }
152
Jiri Olsa8ceb41d2017-01-23 22:07:59 +0100153 if (!data || perf_data__is_write(data)) {
Arnaldo Carvalho de Melo64abebf72010-01-27 21:05:52 -0200154 /*
155 * In O_RDONLY mode this will be performed when reading the
Arnaldo Carvalho de Melo8115d602011-01-29 14:01:45 -0200156 * kernel MMAP event, in perf_event__process_mmap().
Arnaldo Carvalho de Melo64abebf72010-01-27 21:05:52 -0200157 */
Arnaldo Carvalho de Melo316c7132013-11-05 15:32:36 -0300158 if (perf_session__create_kernel_maps(session) < 0)
Andi Kleena5c2a4c2014-09-24 14:39:54 -0700159 pr_warning("Cannot read kernel map\n");
Arnaldo Carvalho de Melo64abebf72010-01-27 21:05:52 -0200160 }
Arnaldo Carvalho de Melod549c7692009-12-27 21:37:02 -0200161
David Carrillo-Cisneros0973ad92017-04-10 13:14:30 -0700162 /*
163 * In pipe-mode, evlist is empty until PERF_RECORD_HEADER_ATTR is
164 * processed, so perf_evlist__sample_id_all is not meaningful here.
165 */
Jiri Olsa8ceb41d2017-01-23 22:07:59 +0100166 if ((!data || !data->is_pipe) && tool && tool->ordering_requires_timestamps &&
Jiri Olsa0a8cb852014-07-06 14:18:21 +0200167 tool->ordered_events && !perf_evlist__sample_id_all(session->evlist)) {
Ian Munsie21ef97f2010-12-10 14:09:16 +1100168 dump_printf("WARNING: No sample_id_all support, falling back to unordered processing\n");
Jiri Olsa0a8cb852014-07-06 14:18:21 +0200169 tool->ordered_events = false;
Arnaldo Carvalho de Melod10eb1e2015-03-03 12:20:38 -0300170 }
Ian Munsie21ef97f2010-12-10 14:09:16 +1100171
Arnaldo Carvalho de Melo316c7132013-11-05 15:32:36 -0300172 return session;
Jiri Olsa6a4d98d2013-10-15 16:27:33 +0200173
174 out_close:
Jiri Olsa8ceb41d2017-01-23 22:07:59 +0100175 perf_data__close(data);
Jiri Olsa6a4d98d2013-10-15 16:27:33 +0200176 out_delete:
Arnaldo Carvalho de Melo316c7132013-11-05 15:32:36 -0300177 perf_session__delete(session);
Jiri Olsa6a4d98d2013-10-15 16:27:33 +0200178 out:
Arnaldo Carvalho de Melo4aa65632009-12-13 19:50:29 -0200179 return NULL;
Arnaldo Carvalho de Melo94c744b2009-12-11 21:24:02 -0200180}
181
Arnaldo Carvalho de Melob424eba2011-11-09 13:24:25 -0200182static void perf_session__delete_threads(struct perf_session *session)
183{
Arnaldo Carvalho de Melo876650e62012-12-18 19:15:48 -0300184 machine__delete_threads(&session->machines.host);
Arnaldo Carvalho de Melob424eba2011-11-09 13:24:25 -0200185}
186
Arnaldo Carvalho de Melo316c7132013-11-05 15:32:36 -0300187void perf_session__delete(struct perf_session *session)
Arnaldo Carvalho de Melo94c744b2009-12-11 21:24:02 -0200188{
Arnaldo Carvalho de Meloe1446552016-06-22 10:02:16 -0300189 if (session == NULL)
190 return;
Adrian Hunterc4468702015-04-09 18:53:48 +0300191 auxtrace__free(session);
Adrian Hunter99fa2982015-04-30 17:37:25 +0300192 auxtrace_index__free(&session->auxtrace_index);
Arnaldo Carvalho de Melo316c7132013-11-05 15:32:36 -0300193 perf_session__destroy_kernel_maps(session);
Arnaldo Carvalho de Melo316c7132013-11-05 15:32:36 -0300194 perf_session__delete_threads(session);
Arnaldo Carvalho de Melof0ce8882015-09-08 13:30:00 -0300195 perf_env__exit(&session->header.env);
Arnaldo Carvalho de Melo316c7132013-11-05 15:32:36 -0300196 machines__exit(&session->machines);
Jiri Olsa8ceb41d2017-01-23 22:07:59 +0100197 if (session->data)
198 perf_data__close(session->data);
Arnaldo Carvalho de Melo316c7132013-11-05 15:32:36 -0300199 free(session);
Arnaldo Carvalho de Melo94c744b2009-12-11 21:24:02 -0200200}
Arnaldo Carvalho de Meloa3286262009-12-14 14:22:59 -0200201
Adrian Hunter47c3d102013-07-04 16:20:21 +0300202static int process_event_synth_tracing_data_stub(struct perf_tool *tool
203 __maybe_unused,
204 union perf_event *event
Irina Tirdea1d037ca2012-09-11 01:15:03 +0300205 __maybe_unused,
206 struct perf_session *session
207 __maybe_unused)
Arnaldo Carvalho de Melod20deb62011-11-25 08:19:45 -0200208{
209 dump_printf(": unhandled!\n");
210 return 0;
211}
212
Adrian Hunter47c3d102013-07-04 16:20:21 +0300213static int process_event_synth_attr_stub(struct perf_tool *tool __maybe_unused,
214 union perf_event *event __maybe_unused,
Irina Tirdea1d037ca2012-09-11 01:15:03 +0300215 struct perf_evlist **pevlist
216 __maybe_unused)
Arnaldo Carvalho de Melo10d0f082011-11-11 22:45:41 -0200217{
218 dump_printf(": unhandled!\n");
219 return 0;
220}
221
Jiri Olsaffe777252015-10-25 15:51:36 +0100222static int process_event_synth_event_update_stub(struct perf_tool *tool __maybe_unused,
223 union perf_event *event __maybe_unused,
224 struct perf_evlist **pevlist
225 __maybe_unused)
226{
Jiri Olsa2d2aea62015-10-25 15:51:42 +0100227 if (dump_trace)
228 perf_event__fprintf_event_update(event, stdout);
229
Jiri Olsaffe777252015-10-25 15:51:36 +0100230 dump_printf(": unhandled!\n");
231 return 0;
232}
233
Irina Tirdea1d037ca2012-09-11 01:15:03 +0300234static int process_event_sample_stub(struct perf_tool *tool __maybe_unused,
235 union perf_event *event __maybe_unused,
236 struct perf_sample *sample __maybe_unused,
237 struct perf_evsel *evsel __maybe_unused,
238 struct machine *machine __maybe_unused)
Arnaldo Carvalho de Melo9e69c212011-03-15 15:44:01 -0300239{
240 dump_printf(": unhandled!\n");
241 return 0;
242}
243
Irina Tirdea1d037ca2012-09-11 01:15:03 +0300244static int process_event_stub(struct perf_tool *tool __maybe_unused,
245 union perf_event *event __maybe_unused,
246 struct perf_sample *sample __maybe_unused,
247 struct machine *machine __maybe_unused)
Arnaldo Carvalho de Melo06aae5902009-12-27 21:36:59 -0200248{
249 dump_printf(": unhandled!\n");
250 return 0;
251}
252
Irina Tirdea1d037ca2012-09-11 01:15:03 +0300253static int process_finished_round_stub(struct perf_tool *tool __maybe_unused,
254 union perf_event *event __maybe_unused,
Arnaldo Carvalho de Melod704ebd2015-03-03 12:37:54 -0300255 struct ordered_events *oe __maybe_unused)
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -0200256{
257 dump_printf(": unhandled!\n");
258 return 0;
259}
260
Arnaldo Carvalho de Melo45694aa2011-11-28 08:30:20 -0200261static int process_finished_round(struct perf_tool *tool,
Arnaldo Carvalho de Melod20deb62011-11-25 08:19:45 -0200262 union perf_event *event,
Arnaldo Carvalho de Melod704ebd2015-03-03 12:37:54 -0300263 struct ordered_events *oe);
Frederic Weisbeckerd6b17be2010-05-03 15:14:33 +0200264
Adrian Huntera16ac022015-04-09 18:53:43 +0300265static int skipn(int fd, off_t n)
266{
267 char buf[4096];
268 ssize_t ret;
269
270 while (n > 0) {
271 ret = read(fd, buf, min(n, (off_t)sizeof(buf)));
272 if (ret <= 0)
273 return ret;
274 n -= ret;
275 }
276
277 return 0;
278}
279
280static s64 process_event_auxtrace_stub(struct perf_tool *tool __maybe_unused,
281 union perf_event *event,
282 struct perf_session *session
283 __maybe_unused)
284{
285 dump_printf(": unhandled!\n");
Jiri Olsa8ceb41d2017-01-23 22:07:59 +0100286 if (perf_data__is_pipe(session->data))
287 skipn(perf_data__fd(session->data), event->auxtrace.size);
Adrian Huntera16ac022015-04-09 18:53:43 +0300288 return event->auxtrace.size;
289}
290
Adrian Hunter5fb0ac12016-03-07 16:44:39 -0300291static int process_event_op2_stub(struct perf_tool *tool __maybe_unused,
292 union perf_event *event __maybe_unused,
293 struct perf_session *session __maybe_unused)
Adrian Huntere9bf54d2015-04-09 18:53:47 +0300294{
295 dump_printf(": unhandled!\n");
296 return 0;
297}
298
Jiri Olsa5f3339d2015-10-25 15:51:19 +0100299
300static
301int process_event_thread_map_stub(struct perf_tool *tool __maybe_unused,
302 union perf_event *event __maybe_unused,
303 struct perf_session *session __maybe_unused)
304{
Jiri Olsa2d2aea62015-10-25 15:51:42 +0100305 if (dump_trace)
306 perf_event__fprintf_thread_map(event, stdout);
307
Jiri Olsa5f3339d2015-10-25 15:51:19 +0100308 dump_printf(": unhandled!\n");
309 return 0;
310}
311
Jiri Olsa6640b6c2015-10-25 15:51:23 +0100312static
313int process_event_cpu_map_stub(struct perf_tool *tool __maybe_unused,
314 union perf_event *event __maybe_unused,
315 struct perf_session *session __maybe_unused)
316{
Jiri Olsa2d2aea62015-10-25 15:51:42 +0100317 if (dump_trace)
318 perf_event__fprintf_cpu_map(event, stdout);
319
Jiri Olsa6640b6c2015-10-25 15:51:23 +0100320 dump_printf(": unhandled!\n");
321 return 0;
322}
323
Jiri Olsa374fb9e2015-10-25 15:51:27 +0100324static
325int process_event_stat_config_stub(struct perf_tool *tool __maybe_unused,
326 union perf_event *event __maybe_unused,
327 struct perf_session *session __maybe_unused)
328{
Jiri Olsa2d2aea62015-10-25 15:51:42 +0100329 if (dump_trace)
330 perf_event__fprintf_stat_config(event, stdout);
331
Jiri Olsa374fb9e2015-10-25 15:51:27 +0100332 dump_printf(": unhandled!\n");
333 return 0;
334}
335
Jiri Olsad80518c2015-10-25 15:51:30 +0100336static int process_stat_stub(struct perf_tool *tool __maybe_unused,
337 union perf_event *event __maybe_unused,
338 struct perf_session *perf_session
339 __maybe_unused)
340{
Jiri Olsa2d2aea62015-10-25 15:51:42 +0100341 if (dump_trace)
342 perf_event__fprintf_stat(event, stdout);
343
Jiri Olsad80518c2015-10-25 15:51:30 +0100344 dump_printf(": unhandled!\n");
345 return 0;
346}
347
Jiri Olsa2d8f0f12015-10-25 15:51:33 +0100348static int process_stat_round_stub(struct perf_tool *tool __maybe_unused,
349 union perf_event *event __maybe_unused,
350 struct perf_session *perf_session
351 __maybe_unused)
352{
Jiri Olsa2d2aea62015-10-25 15:51:42 +0100353 if (dump_trace)
354 perf_event__fprintf_stat_round(event, stdout);
355
Jiri Olsa2d8f0f12015-10-25 15:51:33 +0100356 dump_printf(": unhandled!\n");
357 return 0;
358}
359
David Ahern9c501402013-08-02 14:05:41 -0600360void perf_tool__fill_defaults(struct perf_tool *tool)
Arnaldo Carvalho de Melo06aae5902009-12-27 21:36:59 -0200361{
Arnaldo Carvalho de Melo45694aa2011-11-28 08:30:20 -0200362 if (tool->sample == NULL)
363 tool->sample = process_event_sample_stub;
364 if (tool->mmap == NULL)
365 tool->mmap = process_event_stub;
David Ahern6adb0b02013-09-22 19:44:59 -0600366 if (tool->mmap2 == NULL)
367 tool->mmap2 = process_event_stub;
Arnaldo Carvalho de Melo45694aa2011-11-28 08:30:20 -0200368 if (tool->comm == NULL)
369 tool->comm = process_event_stub;
Namhyung Kim7f0cd232017-10-17 22:29:00 +0900370 if (tool->namespaces == NULL)
371 tool->namespaces = process_event_stub;
Arnaldo Carvalho de Melo45694aa2011-11-28 08:30:20 -0200372 if (tool->fork == NULL)
373 tool->fork = process_event_stub;
374 if (tool->exit == NULL)
375 tool->exit = process_event_stub;
376 if (tool->lost == NULL)
377 tool->lost = perf_event__process_lost;
Kan Liangc4937a92015-05-10 15:13:15 -0400378 if (tool->lost_samples == NULL)
379 tool->lost_samples = perf_event__process_lost_samples;
Adrian Hunter4a96f7a2015-04-30 17:37:29 +0300380 if (tool->aux == NULL)
381 tool->aux = perf_event__process_aux;
Adrian Hunter0ad21f62015-04-30 17:37:30 +0300382 if (tool->itrace_start == NULL)
383 tool->itrace_start = perf_event__process_itrace_start;
Adrian Hunter02860392015-07-21 12:44:03 +0300384 if (tool->context_switch == NULL)
385 tool->context_switch = perf_event__process_switch;
Arnaldo Carvalho de Melo45694aa2011-11-28 08:30:20 -0200386 if (tool->read == NULL)
387 tool->read = process_event_sample_stub;
388 if (tool->throttle == NULL)
389 tool->throttle = process_event_stub;
390 if (tool->unthrottle == NULL)
391 tool->unthrottle = process_event_stub;
392 if (tool->attr == NULL)
393 tool->attr = process_event_synth_attr_stub;
Jiri Olsaffe777252015-10-25 15:51:36 +0100394 if (tool->event_update == NULL)
395 tool->event_update = process_event_synth_event_update_stub;
Arnaldo Carvalho de Melo45694aa2011-11-28 08:30:20 -0200396 if (tool->tracing_data == NULL)
397 tool->tracing_data = process_event_synth_tracing_data_stub;
398 if (tool->build_id == NULL)
Adrian Hunter5fb0ac12016-03-07 16:44:39 -0300399 tool->build_id = process_event_op2_stub;
Arnaldo Carvalho de Melo45694aa2011-11-28 08:30:20 -0200400 if (tool->finished_round == NULL) {
Jiri Olsa0a8cb852014-07-06 14:18:21 +0200401 if (tool->ordered_events)
Arnaldo Carvalho de Melo45694aa2011-11-28 08:30:20 -0200402 tool->finished_round = process_finished_round;
Frederic Weisbeckerd6b17be2010-05-03 15:14:33 +0200403 else
Arnaldo Carvalho de Melo45694aa2011-11-28 08:30:20 -0200404 tool->finished_round = process_finished_round_stub;
Frederic Weisbeckerd6b17be2010-05-03 15:14:33 +0200405 }
Adrian Hunter3c659ee2014-10-27 15:49:22 +0200406 if (tool->id_index == NULL)
Adrian Hunter5fb0ac12016-03-07 16:44:39 -0300407 tool->id_index = process_event_op2_stub;
Adrian Huntera16ac022015-04-09 18:53:43 +0300408 if (tool->auxtrace_info == NULL)
Adrian Hunter5fb0ac12016-03-07 16:44:39 -0300409 tool->auxtrace_info = process_event_op2_stub;
Adrian Huntera16ac022015-04-09 18:53:43 +0300410 if (tool->auxtrace == NULL)
411 tool->auxtrace = process_event_auxtrace_stub;
Adrian Huntere9bf54d2015-04-09 18:53:47 +0300412 if (tool->auxtrace_error == NULL)
Adrian Hunter5fb0ac12016-03-07 16:44:39 -0300413 tool->auxtrace_error = process_event_op2_stub;
Jiri Olsa5f3339d2015-10-25 15:51:19 +0100414 if (tool->thread_map == NULL)
415 tool->thread_map = process_event_thread_map_stub;
Jiri Olsa6640b6c2015-10-25 15:51:23 +0100416 if (tool->cpu_map == NULL)
417 tool->cpu_map = process_event_cpu_map_stub;
Jiri Olsa374fb9e2015-10-25 15:51:27 +0100418 if (tool->stat_config == NULL)
419 tool->stat_config = process_event_stat_config_stub;
Jiri Olsad80518c2015-10-25 15:51:30 +0100420 if (tool->stat == NULL)
421 tool->stat = process_stat_stub;
Jiri Olsa2d8f0f12015-10-25 15:51:33 +0100422 if (tool->stat_round == NULL)
423 tool->stat_round = process_stat_round_stub;
Adrian Hunter46bc29b2016-03-08 10:38:44 +0200424 if (tool->time_conv == NULL)
425 tool->time_conv = process_event_op2_stub;
David Carrillo-Cisnerose9def1b2017-07-17 21:25:48 -0700426 if (tool->feature == NULL)
427 tool->feature = process_event_op2_stub;
Arnaldo Carvalho de Melo06aae5902009-12-27 21:36:59 -0200428}
Arnaldo Carvalho de Melo48000a12014-12-17 17:24:45 -0300429
Jiri Olsa268fb202012-05-30 14:23:43 +0200430static void swap_sample_id_all(union perf_event *event, void *data)
431{
432 void *end = (void *) event + event->header.size;
433 int size = end - data;
434
435 BUG_ON(size % sizeof(u64));
436 mem_bswap_64(data, size);
437}
438
439static void perf_event__all64_swap(union perf_event *event,
Irina Tirdea1d037ca2012-09-11 01:15:03 +0300440 bool sample_id_all __maybe_unused)
Arnaldo Carvalho de Meloba215942010-01-14 12:23:10 -0200441{
Arnaldo Carvalho de Melo8115d602011-01-29 14:01:45 -0200442 struct perf_event_header *hdr = &event->header;
443 mem_bswap_64(hdr + 1, event->header.size - sizeof(*hdr));
Arnaldo Carvalho de Meloba215942010-01-14 12:23:10 -0200444}
445
Jiri Olsa268fb202012-05-30 14:23:43 +0200446static void perf_event__comm_swap(union perf_event *event, bool sample_id_all)
Arnaldo Carvalho de Meloba215942010-01-14 12:23:10 -0200447{
Arnaldo Carvalho de Melo8115d602011-01-29 14:01:45 -0200448 event->comm.pid = bswap_32(event->comm.pid);
449 event->comm.tid = bswap_32(event->comm.tid);
Jiri Olsa268fb202012-05-30 14:23:43 +0200450
451 if (sample_id_all) {
452 void *data = &event->comm.comm;
453
Irina Tirdea9ac3e482012-09-11 01:15:01 +0300454 data += PERF_ALIGN(strlen(data) + 1, sizeof(u64));
Jiri Olsa268fb202012-05-30 14:23:43 +0200455 swap_sample_id_all(event, data);
456 }
Arnaldo Carvalho de Meloba215942010-01-14 12:23:10 -0200457}
458
Jiri Olsa268fb202012-05-30 14:23:43 +0200459static void perf_event__mmap_swap(union perf_event *event,
460 bool sample_id_all)
Arnaldo Carvalho de Meloba215942010-01-14 12:23:10 -0200461{
Arnaldo Carvalho de Melo8115d602011-01-29 14:01:45 -0200462 event->mmap.pid = bswap_32(event->mmap.pid);
463 event->mmap.tid = bswap_32(event->mmap.tid);
464 event->mmap.start = bswap_64(event->mmap.start);
465 event->mmap.len = bswap_64(event->mmap.len);
466 event->mmap.pgoff = bswap_64(event->mmap.pgoff);
Jiri Olsa268fb202012-05-30 14:23:43 +0200467
468 if (sample_id_all) {
469 void *data = &event->mmap.filename;
470
Irina Tirdea9ac3e482012-09-11 01:15:01 +0300471 data += PERF_ALIGN(strlen(data) + 1, sizeof(u64));
Jiri Olsa268fb202012-05-30 14:23:43 +0200472 swap_sample_id_all(event, data);
473 }
Arnaldo Carvalho de Meloba215942010-01-14 12:23:10 -0200474}
475
Stephane Eranian5c5e8542013-08-21 12:10:25 +0200476static void perf_event__mmap2_swap(union perf_event *event,
477 bool sample_id_all)
478{
479 event->mmap2.pid = bswap_32(event->mmap2.pid);
480 event->mmap2.tid = bswap_32(event->mmap2.tid);
481 event->mmap2.start = bswap_64(event->mmap2.start);
482 event->mmap2.len = bswap_64(event->mmap2.len);
483 event->mmap2.pgoff = bswap_64(event->mmap2.pgoff);
484 event->mmap2.maj = bswap_32(event->mmap2.maj);
485 event->mmap2.min = bswap_32(event->mmap2.min);
486 event->mmap2.ino = bswap_64(event->mmap2.ino);
487
488 if (sample_id_all) {
489 void *data = &event->mmap2.filename;
490
491 data += PERF_ALIGN(strlen(data) + 1, sizeof(u64));
492 swap_sample_id_all(event, data);
493 }
494}
Jiri Olsa268fb202012-05-30 14:23:43 +0200495static void perf_event__task_swap(union perf_event *event, bool sample_id_all)
Arnaldo Carvalho de Meloba215942010-01-14 12:23:10 -0200496{
Arnaldo Carvalho de Melo8115d602011-01-29 14:01:45 -0200497 event->fork.pid = bswap_32(event->fork.pid);
498 event->fork.tid = bswap_32(event->fork.tid);
499 event->fork.ppid = bswap_32(event->fork.ppid);
500 event->fork.ptid = bswap_32(event->fork.ptid);
501 event->fork.time = bswap_64(event->fork.time);
Jiri Olsa268fb202012-05-30 14:23:43 +0200502
503 if (sample_id_all)
504 swap_sample_id_all(event, &event->fork + 1);
Arnaldo Carvalho de Meloba215942010-01-14 12:23:10 -0200505}
506
Jiri Olsa268fb202012-05-30 14:23:43 +0200507static void perf_event__read_swap(union perf_event *event, bool sample_id_all)
Arnaldo Carvalho de Meloba215942010-01-14 12:23:10 -0200508{
Arnaldo Carvalho de Melo8115d602011-01-29 14:01:45 -0200509 event->read.pid = bswap_32(event->read.pid);
510 event->read.tid = bswap_32(event->read.tid);
511 event->read.value = bswap_64(event->read.value);
512 event->read.time_enabled = bswap_64(event->read.time_enabled);
513 event->read.time_running = bswap_64(event->read.time_running);
514 event->read.id = bswap_64(event->read.id);
Jiri Olsa268fb202012-05-30 14:23:43 +0200515
516 if (sample_id_all)
517 swap_sample_id_all(event, &event->read + 1);
Arnaldo Carvalho de Meloba215942010-01-14 12:23:10 -0200518}
519
Adrian Hunter4a96f7a2015-04-30 17:37:29 +0300520static void perf_event__aux_swap(union perf_event *event, bool sample_id_all)
521{
522 event->aux.aux_offset = bswap_64(event->aux.aux_offset);
523 event->aux.aux_size = bswap_64(event->aux.aux_size);
524 event->aux.flags = bswap_64(event->aux.flags);
525
526 if (sample_id_all)
527 swap_sample_id_all(event, &event->aux + 1);
528}
529
Adrian Hunter0ad21f62015-04-30 17:37:30 +0300530static void perf_event__itrace_start_swap(union perf_event *event,
531 bool sample_id_all)
532{
533 event->itrace_start.pid = bswap_32(event->itrace_start.pid);
534 event->itrace_start.tid = bswap_32(event->itrace_start.tid);
535
536 if (sample_id_all)
537 swap_sample_id_all(event, &event->itrace_start + 1);
538}
539
Adrian Hunter02860392015-07-21 12:44:03 +0300540static void perf_event__switch_swap(union perf_event *event, bool sample_id_all)
541{
542 if (event->header.type == PERF_RECORD_SWITCH_CPU_WIDE) {
543 event->context_switch.next_prev_pid =
544 bswap_32(event->context_switch.next_prev_pid);
545 event->context_switch.next_prev_tid =
546 bswap_32(event->context_switch.next_prev_tid);
547 }
548
549 if (sample_id_all)
550 swap_sample_id_all(event, &event->context_switch + 1);
551}
552
Jiri Olsadd96c462013-09-01 12:36:15 +0200553static void perf_event__throttle_swap(union perf_event *event,
554 bool sample_id_all)
555{
556 event->throttle.time = bswap_64(event->throttle.time);
557 event->throttle.id = bswap_64(event->throttle.id);
558 event->throttle.stream_id = bswap_64(event->throttle.stream_id);
559
560 if (sample_id_all)
561 swap_sample_id_all(event, &event->throttle + 1);
562}
563
Jiri Olsae108c662012-05-16 08:59:03 +0200564static u8 revbyte(u8 b)
565{
566 int rev = (b >> 4) | ((b & 0xf) << 4);
567 rev = ((rev & 0xcc) >> 2) | ((rev & 0x33) << 2);
568 rev = ((rev & 0xaa) >> 1) | ((rev & 0x55) << 1);
569 return (u8) rev;
570}
571
572/*
573 * XXX this is hack in attempt to carry flags bitfield
Adam Buchbinderbd1a0be52016-02-24 10:02:25 -0800574 * through endian village. ABI says:
Jiri Olsae108c662012-05-16 08:59:03 +0200575 *
576 * Bit-fields are allocated from right to left (least to most significant)
577 * on little-endian implementations and from left to right (most to least
578 * significant) on big-endian implementations.
579 *
580 * The above seems to be byte specific, so we need to reverse each
581 * byte of the bitfield. 'Internet' also says this might be implementation
582 * specific and we probably need proper fix and carry perf_event_attr
583 * bitfield flags in separate data file FEAT_ section. Thought this seems
584 * to work for now.
585 */
586static void swap_bitfield(u8 *p, unsigned len)
587{
588 unsigned i;
589
590 for (i = 0; i < len; i++) {
591 *p = revbyte(*p);
592 p++;
593 }
594}
595
David Aherneda39132011-07-15 12:34:09 -0600596/* exported for swapping attributes in file header */
597void perf_event__attr_swap(struct perf_event_attr *attr)
598{
599 attr->type = bswap_32(attr->type);
600 attr->size = bswap_32(attr->size);
Jiri Olsae108c662012-05-16 08:59:03 +0200601
Wang Nanb30b6172015-06-17 09:56:39 +0000602#define bswap_safe(f, n) \
603 (attr->size > (offsetof(struct perf_event_attr, f) + \
604 sizeof(attr->f) * (n)))
605#define bswap_field(f, sz) \
606do { \
607 if (bswap_safe(f, 0)) \
608 attr->f = bswap_##sz(attr->f); \
609} while(0)
Arnaldo Carvalho de Melo792d48b2016-04-28 19:03:42 -0300610#define bswap_field_16(f) bswap_field(f, 16)
Wang Nanb30b6172015-06-17 09:56:39 +0000611#define bswap_field_32(f) bswap_field(f, 32)
612#define bswap_field_64(f) bswap_field(f, 64)
613
614 bswap_field_64(config);
615 bswap_field_64(sample_period);
616 bswap_field_64(sample_type);
617 bswap_field_64(read_format);
618 bswap_field_32(wakeup_events);
619 bswap_field_32(bp_type);
620 bswap_field_64(bp_addr);
621 bswap_field_64(bp_len);
622 bswap_field_64(branch_sample_type);
623 bswap_field_64(sample_regs_user);
624 bswap_field_32(sample_stack_user);
625 bswap_field_32(aux_watermark);
Arnaldo Carvalho de Melo792d48b2016-04-28 19:03:42 -0300626 bswap_field_16(sample_max_stack);
Wang Nanb30b6172015-06-17 09:56:39 +0000627
628 /*
629 * After read_format are bitfields. Check read_format because
630 * we are unable to use offsetof on bitfield.
631 */
632 if (bswap_safe(read_format, 1))
633 swap_bitfield((u8 *) (&attr->read_format + 1),
634 sizeof(u64));
635#undef bswap_field_64
636#undef bswap_field_32
637#undef bswap_field
638#undef bswap_safe
David Aherneda39132011-07-15 12:34:09 -0600639}
640
Jiri Olsa268fb202012-05-30 14:23:43 +0200641static void perf_event__hdr_attr_swap(union perf_event *event,
Irina Tirdea1d037ca2012-09-11 01:15:03 +0300642 bool sample_id_all __maybe_unused)
Tom Zanussi2c46dbb2010-04-01 23:59:19 -0500643{
644 size_t size;
645
David Aherneda39132011-07-15 12:34:09 -0600646 perf_event__attr_swap(&event->attr.attr);
Tom Zanussi2c46dbb2010-04-01 23:59:19 -0500647
Arnaldo Carvalho de Melo8115d602011-01-29 14:01:45 -0200648 size = event->header.size;
649 size -= (void *)&event->attr.id - (void *)event;
650 mem_bswap_64(event->attr.id, size);
Tom Zanussi2c46dbb2010-04-01 23:59:19 -0500651}
652
Jiri Olsaffe777252015-10-25 15:51:36 +0100653static void perf_event__event_update_swap(union perf_event *event,
654 bool sample_id_all __maybe_unused)
655{
656 event->event_update.type = bswap_64(event->event_update.type);
657 event->event_update.id = bswap_64(event->event_update.id);
658}
659
Jiri Olsa268fb202012-05-30 14:23:43 +0200660static void perf_event__event_type_swap(union perf_event *event,
Irina Tirdea1d037ca2012-09-11 01:15:03 +0300661 bool sample_id_all __maybe_unused)
Tom Zanussicd19a032010-04-01 23:59:20 -0500662{
Arnaldo Carvalho de Melo8115d602011-01-29 14:01:45 -0200663 event->event_type.event_type.event_id =
664 bswap_64(event->event_type.event_type.event_id);
Tom Zanussicd19a032010-04-01 23:59:20 -0500665}
666
Jiri Olsa268fb202012-05-30 14:23:43 +0200667static void perf_event__tracing_data_swap(union perf_event *event,
Irina Tirdea1d037ca2012-09-11 01:15:03 +0300668 bool sample_id_all __maybe_unused)
Tom Zanussi92155452010-04-01 23:59:21 -0500669{
Arnaldo Carvalho de Melo8115d602011-01-29 14:01:45 -0200670 event->tracing_data.size = bswap_32(event->tracing_data.size);
Tom Zanussi92155452010-04-01 23:59:21 -0500671}
672
Adrian Huntera16ac022015-04-09 18:53:43 +0300673static void perf_event__auxtrace_info_swap(union perf_event *event,
674 bool sample_id_all __maybe_unused)
675{
676 size_t size;
677
678 event->auxtrace_info.type = bswap_32(event->auxtrace_info.type);
679
680 size = event->header.size;
681 size -= (void *)&event->auxtrace_info.priv - (void *)event;
682 mem_bswap_64(event->auxtrace_info.priv, size);
683}
684
685static void perf_event__auxtrace_swap(union perf_event *event,
686 bool sample_id_all __maybe_unused)
687{
688 event->auxtrace.size = bswap_64(event->auxtrace.size);
689 event->auxtrace.offset = bswap_64(event->auxtrace.offset);
690 event->auxtrace.reference = bswap_64(event->auxtrace.reference);
691 event->auxtrace.idx = bswap_32(event->auxtrace.idx);
692 event->auxtrace.tid = bswap_32(event->auxtrace.tid);
693 event->auxtrace.cpu = bswap_32(event->auxtrace.cpu);
694}
695
Adrian Huntere9bf54d2015-04-09 18:53:47 +0300696static void perf_event__auxtrace_error_swap(union perf_event *event,
697 bool sample_id_all __maybe_unused)
698{
699 event->auxtrace_error.type = bswap_32(event->auxtrace_error.type);
700 event->auxtrace_error.code = bswap_32(event->auxtrace_error.code);
701 event->auxtrace_error.cpu = bswap_32(event->auxtrace_error.cpu);
702 event->auxtrace_error.pid = bswap_32(event->auxtrace_error.pid);
703 event->auxtrace_error.tid = bswap_32(event->auxtrace_error.tid);
704 event->auxtrace_error.ip = bswap_64(event->auxtrace_error.ip);
705}
706
Jiri Olsa5f3339d2015-10-25 15:51:19 +0100707static void perf_event__thread_map_swap(union perf_event *event,
708 bool sample_id_all __maybe_unused)
709{
710 unsigned i;
711
712 event->thread_map.nr = bswap_64(event->thread_map.nr);
713
714 for (i = 0; i < event->thread_map.nr; i++)
715 event->thread_map.entries[i].pid = bswap_64(event->thread_map.entries[i].pid);
716}
717
Jiri Olsa6640b6c2015-10-25 15:51:23 +0100718static void perf_event__cpu_map_swap(union perf_event *event,
719 bool sample_id_all __maybe_unused)
720{
721 struct cpu_map_data *data = &event->cpu_map.data;
722 struct cpu_map_entries *cpus;
723 struct cpu_map_mask *mask;
724 unsigned i;
725
726 data->type = bswap_64(data->type);
727
728 switch (data->type) {
729 case PERF_CPU_MAP__CPUS:
730 cpus = (struct cpu_map_entries *)data->data;
731
732 cpus->nr = bswap_16(cpus->nr);
733
734 for (i = 0; i < cpus->nr; i++)
735 cpus->cpu[i] = bswap_16(cpus->cpu[i]);
736 break;
737 case PERF_CPU_MAP__MASK:
738 mask = (struct cpu_map_mask *) data->data;
739
740 mask->nr = bswap_16(mask->nr);
741 mask->long_size = bswap_16(mask->long_size);
742
743 switch (mask->long_size) {
744 case 4: mem_bswap_32(&mask->mask, mask->nr); break;
745 case 8: mem_bswap_64(&mask->mask, mask->nr); break;
746 default:
747 pr_err("cpu_map swap: unsupported long size\n");
748 }
749 default:
750 break;
751 }
752}
753
Jiri Olsa374fb9e2015-10-25 15:51:27 +0100754static void perf_event__stat_config_swap(union perf_event *event,
755 bool sample_id_all __maybe_unused)
756{
757 u64 size;
758
759 size = event->stat_config.nr * sizeof(event->stat_config.data[0]);
760 size += 1; /* nr item itself */
761 mem_bswap_64(&event->stat_config.nr, size);
762}
763
Jiri Olsad80518c2015-10-25 15:51:30 +0100764static void perf_event__stat_swap(union perf_event *event,
765 bool sample_id_all __maybe_unused)
766{
767 event->stat.id = bswap_64(event->stat.id);
768 event->stat.thread = bswap_32(event->stat.thread);
769 event->stat.cpu = bswap_32(event->stat.cpu);
770 event->stat.val = bswap_64(event->stat.val);
771 event->stat.ena = bswap_64(event->stat.ena);
772 event->stat.run = bswap_64(event->stat.run);
773}
774
Jiri Olsa2d8f0f12015-10-25 15:51:33 +0100775static void perf_event__stat_round_swap(union perf_event *event,
776 bool sample_id_all __maybe_unused)
777{
778 event->stat_round.type = bswap_64(event->stat_round.type);
779 event->stat_round.time = bswap_64(event->stat_round.time);
780}
781
Jiri Olsa268fb202012-05-30 14:23:43 +0200782typedef void (*perf_event__swap_op)(union perf_event *event,
783 bool sample_id_all);
Arnaldo Carvalho de Meloba215942010-01-14 12:23:10 -0200784
Arnaldo Carvalho de Melo8115d602011-01-29 14:01:45 -0200785static perf_event__swap_op perf_event__swap_ops[] = {
786 [PERF_RECORD_MMAP] = perf_event__mmap_swap,
Stephane Eranian5c5e8542013-08-21 12:10:25 +0200787 [PERF_RECORD_MMAP2] = perf_event__mmap2_swap,
Arnaldo Carvalho de Melo8115d602011-01-29 14:01:45 -0200788 [PERF_RECORD_COMM] = perf_event__comm_swap,
789 [PERF_RECORD_FORK] = perf_event__task_swap,
790 [PERF_RECORD_EXIT] = perf_event__task_swap,
791 [PERF_RECORD_LOST] = perf_event__all64_swap,
792 [PERF_RECORD_READ] = perf_event__read_swap,
Jiri Olsadd96c462013-09-01 12:36:15 +0200793 [PERF_RECORD_THROTTLE] = perf_event__throttle_swap,
794 [PERF_RECORD_UNTHROTTLE] = perf_event__throttle_swap,
Arnaldo Carvalho de Melo8115d602011-01-29 14:01:45 -0200795 [PERF_RECORD_SAMPLE] = perf_event__all64_swap,
Adrian Hunter4a96f7a2015-04-30 17:37:29 +0300796 [PERF_RECORD_AUX] = perf_event__aux_swap,
Adrian Hunter0ad21f62015-04-30 17:37:30 +0300797 [PERF_RECORD_ITRACE_START] = perf_event__itrace_start_swap,
Kan Liangc4937a92015-05-10 15:13:15 -0400798 [PERF_RECORD_LOST_SAMPLES] = perf_event__all64_swap,
Adrian Hunter02860392015-07-21 12:44:03 +0300799 [PERF_RECORD_SWITCH] = perf_event__switch_swap,
800 [PERF_RECORD_SWITCH_CPU_WIDE] = perf_event__switch_swap,
David Aherneda39132011-07-15 12:34:09 -0600801 [PERF_RECORD_HEADER_ATTR] = perf_event__hdr_attr_swap,
Arnaldo Carvalho de Melo8115d602011-01-29 14:01:45 -0200802 [PERF_RECORD_HEADER_EVENT_TYPE] = perf_event__event_type_swap,
803 [PERF_RECORD_HEADER_TRACING_DATA] = perf_event__tracing_data_swap,
804 [PERF_RECORD_HEADER_BUILD_ID] = NULL,
Adrian Hunter3c659ee2014-10-27 15:49:22 +0200805 [PERF_RECORD_ID_INDEX] = perf_event__all64_swap,
Adrian Huntera16ac022015-04-09 18:53:43 +0300806 [PERF_RECORD_AUXTRACE_INFO] = perf_event__auxtrace_info_swap,
807 [PERF_RECORD_AUXTRACE] = perf_event__auxtrace_swap,
Adrian Huntere9bf54d2015-04-09 18:53:47 +0300808 [PERF_RECORD_AUXTRACE_ERROR] = perf_event__auxtrace_error_swap,
Jiri Olsa5f3339d2015-10-25 15:51:19 +0100809 [PERF_RECORD_THREAD_MAP] = perf_event__thread_map_swap,
Jiri Olsa6640b6c2015-10-25 15:51:23 +0100810 [PERF_RECORD_CPU_MAP] = perf_event__cpu_map_swap,
Jiri Olsa374fb9e2015-10-25 15:51:27 +0100811 [PERF_RECORD_STAT_CONFIG] = perf_event__stat_config_swap,
Jiri Olsad80518c2015-10-25 15:51:30 +0100812 [PERF_RECORD_STAT] = perf_event__stat_swap,
Jiri Olsa2d8f0f12015-10-25 15:51:33 +0100813 [PERF_RECORD_STAT_ROUND] = perf_event__stat_round_swap,
Jiri Olsaffe777252015-10-25 15:51:36 +0100814 [PERF_RECORD_EVENT_UPDATE] = perf_event__event_update_swap,
Adrian Hunter46bc29b2016-03-08 10:38:44 +0200815 [PERF_RECORD_TIME_CONV] = perf_event__all64_swap,
Arnaldo Carvalho de Melo8115d602011-01-29 14:01:45 -0200816 [PERF_RECORD_HEADER_MAX] = NULL,
Arnaldo Carvalho de Meloba215942010-01-14 12:23:10 -0200817};
818
Frederic Weisbeckerd6b17be2010-05-03 15:14:33 +0200819/*
820 * When perf record finishes a pass on every buffers, it records this pseudo
821 * event.
822 * We record the max timestamp t found in the pass n.
823 * Assuming these timestamps are monotonic across cpus, we know that if
824 * a buffer still has events with timestamps below t, they will be all
825 * available and then read in the pass n + 1.
826 * Hence when we start to read the pass n + 2, we can safely flush every
827 * events with timestamps below t.
828 *
829 * ============ PASS n =================
830 * CPU 0 | CPU 1
831 * |
832 * cnt1 timestamps | cnt2 timestamps
833 * 1 | 2
834 * 2 | 3
835 * - | 4 <--- max recorded
836 *
837 * ============ PASS n + 1 ==============
838 * CPU 0 | CPU 1
839 * |
840 * cnt1 timestamps | cnt2 timestamps
841 * 3 | 5
842 * 4 | 6
843 * 5 | 7 <---- max recorded
844 *
845 * Flush every events below timestamp 4
846 *
847 * ============ PASS n + 2 ==============
848 * CPU 0 | CPU 1
849 * |
850 * cnt1 timestamps | cnt2 timestamps
851 * 6 | 8
852 * 7 | 9
853 * - | 10
854 *
855 * Flush every events below timestamp 7
856 * etc...
857 */
Arnaldo Carvalho de Melob7b61cb2015-03-03 11:58:45 -0300858static int process_finished_round(struct perf_tool *tool __maybe_unused,
Irina Tirdea1d037ca2012-09-11 01:15:03 +0300859 union perf_event *event __maybe_unused,
Arnaldo Carvalho de Melod704ebd2015-03-03 12:37:54 -0300860 struct ordered_events *oe)
Frederic Weisbeckerd6b17be2010-05-03 15:14:33 +0200861{
Adrian Hunter5531e162015-06-23 10:52:48 +0300862 if (dump_trace)
863 fprintf(stdout, "\n");
Arnaldo Carvalho de Melob7b61cb2015-03-03 11:58:45 -0300864 return ordered_events__flush(oe, OE_FLUSH__ROUND);
Frederic Weisbeckerd6b17be2010-05-03 15:14:33 +0200865}
866
Arnaldo Carvalho de Melob7b61cb2015-03-03 11:58:45 -0300867int perf_session__queue_event(struct perf_session *s, union perf_event *event,
Jiri Olsadc83e132017-08-03 13:24:33 +0200868 u64 timestamp, u64 file_offset)
Frederic Weisbeckerc61e52e2010-04-24 00:04:12 +0200869{
Jiri Olsadc83e132017-08-03 13:24:33 +0200870 return ordered_events__queue(&s->ordered_events, event, timestamp, file_offset);
Frederic Weisbeckerc61e52e2010-04-24 00:04:12 +0200871}
872
Kan Liang384b6052015-01-05 13:23:05 -0500873static void callchain__lbr_callstack_printf(struct perf_sample *sample)
Arnaldo Carvalho de Melo640c03c2010-12-02 14:10:21 -0200874{
Kan Liang384b6052015-01-05 13:23:05 -0500875 struct ip_callchain *callchain = sample->callchain;
876 struct branch_stack *lbr_stack = sample->branch_stack;
877 u64 kernel_callchain_nr = callchain->nr;
Arnaldo Carvalho de Melo640c03c2010-12-02 14:10:21 -0200878 unsigned int i;
879
Kan Liang384b6052015-01-05 13:23:05 -0500880 for (i = 0; i < kernel_callchain_nr; i++) {
881 if (callchain->ips[i] == PERF_CONTEXT_USER)
882 break;
883 }
Arnaldo Carvalho de Melo640c03c2010-12-02 14:10:21 -0200884
Kan Liang384b6052015-01-05 13:23:05 -0500885 if ((i != kernel_callchain_nr) && lbr_stack->nr) {
886 u64 total_nr;
887 /*
888 * LBR callstack can only get user call chain,
889 * i is kernel call chain number,
890 * 1 is PERF_CONTEXT_USER.
891 *
892 * The user call chain is stored in LBR registers.
893 * LBR are pair registers. The caller is stored
894 * in "from" register, while the callee is stored
895 * in "to" register.
896 * For example, there is a call stack
897 * "A"->"B"->"C"->"D".
898 * The LBR registers will recorde like
899 * "C"->"D", "B"->"C", "A"->"B".
900 * So only the first "to" register and all "from"
901 * registers are needed to construct the whole stack.
902 */
903 total_nr = i + 1 + lbr_stack->nr + 1;
904 kernel_callchain_nr = i + 1;
905
906 printf("... LBR call chain: nr:%" PRIu64 "\n", total_nr);
907
908 for (i = 0; i < kernel_callchain_nr; i++)
909 printf("..... %2d: %016" PRIx64 "\n",
910 i, callchain->ips[i]);
911
Arnaldo Carvalho de Melo9486aa32011-01-22 20:37:02 -0200912 printf("..... %2d: %016" PRIx64 "\n",
Kan Liang384b6052015-01-05 13:23:05 -0500913 (int)(kernel_callchain_nr), lbr_stack->entries[0].to);
914 for (i = 0; i < lbr_stack->nr; i++)
915 printf("..... %2d: %016" PRIx64 "\n",
916 (int)(i + kernel_callchain_nr + 1), lbr_stack->entries[i].from);
917 }
918}
919
920static void callchain__printf(struct perf_evsel *evsel,
921 struct perf_sample *sample)
922{
923 unsigned int i;
924 struct ip_callchain *callchain = sample->callchain;
925
Arnaldo Carvalho de Meloacf2abb2016-04-18 10:35:03 -0300926 if (perf_evsel__has_branch_callstack(evsel))
Kan Liang384b6052015-01-05 13:23:05 -0500927 callchain__lbr_callstack_printf(sample);
928
929 printf("... FP chain: nr:%" PRIu64 "\n", callchain->nr);
930
931 for (i = 0; i < callchain->nr; i++)
932 printf("..... %2d: %016" PRIx64 "\n",
933 i, callchain->ips[i]);
Arnaldo Carvalho de Melo640c03c2010-12-02 14:10:21 -0200934}
935
Roberto Agostino Vitillob5387522012-02-09 23:21:01 +0100936static void branch_stack__printf(struct perf_sample *sample)
937{
938 uint64_t i;
939
940 printf("... branch stack: nr:%" PRIu64 "\n", sample->branch_stack->nr);
941
Andi Kleen0e332f02015-07-18 08:24:46 -0700942 for (i = 0; i < sample->branch_stack->nr; i++) {
943 struct branch_entry *e = &sample->branch_stack->entries[i];
944
945 printf("..... %2"PRIu64": %016" PRIx64 " -> %016" PRIx64 " %hu cycles %s%s%s%s %x\n",
946 i, e->from, e->to,
Arnaldo Carvalho de Melo8074bf52017-02-17 12:27:26 -0300947 (unsigned short)e->flags.cycles,
Andi Kleen0e332f02015-07-18 08:24:46 -0700948 e->flags.mispred ? "M" : " ",
949 e->flags.predicted ? "P" : " ",
950 e->flags.abort ? "A" : " ",
951 e->flags.in_tx ? "T" : " ",
952 (unsigned)e->flags.reserved);
953 }
Roberto Agostino Vitillob5387522012-02-09 23:21:01 +0100954}
955
Jiri Olsa0f6a3012012-08-07 15:20:45 +0200956static void regs_dump__printf(u64 mask, u64 *regs)
957{
958 unsigned rid, i = 0;
959
960 for_each_set_bit(rid, (unsigned long *) &mask, sizeof(mask) * 8) {
961 u64 val = regs[i++];
962
963 printf(".... %-5s 0x%" PRIx64 "\n",
964 perf_reg_name(rid), val);
965 }
966}
967
Stephane Eranian6a21c0b2014-09-24 13:48:39 +0200968static const char *regs_abi[] = {
969 [PERF_SAMPLE_REGS_ABI_NONE] = "none",
970 [PERF_SAMPLE_REGS_ABI_32] = "32-bit",
971 [PERF_SAMPLE_REGS_ABI_64] = "64-bit",
972};
973
974static inline const char *regs_dump_abi(struct regs_dump *d)
975{
976 if (d->abi > PERF_SAMPLE_REGS_ABI_64)
977 return "unknown";
978
979 return regs_abi[d->abi];
980}
981
982static void regs__printf(const char *type, struct regs_dump *regs)
983{
984 u64 mask = regs->mask;
985
986 printf("... %s regs: mask 0x%" PRIx64 " ABI %s\n",
987 type,
988 mask,
989 regs_dump_abi(regs));
990
991 regs_dump__printf(mask, regs->regs);
992}
993
Jiri Olsa352ea452014-01-07 13:47:25 +0100994static void regs_user__printf(struct perf_sample *sample)
Jiri Olsa0f6a3012012-08-07 15:20:45 +0200995{
996 struct regs_dump *user_regs = &sample->user_regs;
997
Stephane Eranian6a21c0b2014-09-24 13:48:39 +0200998 if (user_regs->regs)
999 regs__printf("user", user_regs);
1000}
1001
1002static void regs_intr__printf(struct perf_sample *sample)
1003{
1004 struct regs_dump *intr_regs = &sample->intr_regs;
1005
1006 if (intr_regs->regs)
1007 regs__printf("intr", intr_regs);
Jiri Olsa0f6a3012012-08-07 15:20:45 +02001008}
1009
1010static void stack_user__printf(struct stack_dump *dump)
1011{
1012 printf("... ustack: size %" PRIu64 ", offset 0x%x\n",
1013 dump->size, dump->offset);
1014}
1015
Arnaldo Carvalho de Melo9fa87272015-02-14 15:08:51 -03001016static void perf_evlist__print_tstamp(struct perf_evlist *evlist,
Arnaldo Carvalho de Melo8115d602011-01-29 14:01:45 -02001017 union perf_event *event,
Arnaldo Carvalho de Melo8d50e5b2011-01-29 13:02:00 -02001018 struct perf_sample *sample)
Arnaldo Carvalho de Melo9c90a612010-12-02 10:25:28 -02001019{
Arnaldo Carvalho de Melo9fa87272015-02-14 15:08:51 -03001020 u64 sample_type = __perf_evlist__combined_sample_type(evlist);
Arnaldo Carvalho de Melo7f3be652012-08-01 19:15:52 -03001021
Arnaldo Carvalho de Melo9c90a612010-12-02 10:25:28 -02001022 if (event->header.type != PERF_RECORD_SAMPLE &&
Arnaldo Carvalho de Melo9fa87272015-02-14 15:08:51 -03001023 !perf_evlist__sample_id_all(evlist)) {
Arnaldo Carvalho de Melo9c90a612010-12-02 10:25:28 -02001024 fputs("-1 -1 ", stdout);
1025 return;
1026 }
1027
Arnaldo Carvalho de Melo7f3be652012-08-01 19:15:52 -03001028 if ((sample_type & PERF_SAMPLE_CPU))
Arnaldo Carvalho de Melo9c90a612010-12-02 10:25:28 -02001029 printf("%u ", sample->cpu);
1030
Arnaldo Carvalho de Melo7f3be652012-08-01 19:15:52 -03001031 if (sample_type & PERF_SAMPLE_TIME)
Arnaldo Carvalho de Melo9486aa32011-01-22 20:37:02 -02001032 printf("%" PRIu64 " ", sample->time);
Arnaldo Carvalho de Melo9c90a612010-12-02 10:25:28 -02001033}
1034
Jiri Olsa9ede4732012-10-10 17:38:13 +02001035static void sample_read__printf(struct perf_sample *sample, u64 read_format)
1036{
1037 printf("... sample_read:\n");
1038
1039 if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED)
1040 printf("...... time enabled %016" PRIx64 "\n",
1041 sample->read.time_enabled);
1042
1043 if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING)
1044 printf("...... time running %016" PRIx64 "\n",
1045 sample->read.time_running);
1046
1047 if (read_format & PERF_FORMAT_GROUP) {
1048 u64 i;
1049
1050 printf(".... group nr %" PRIu64 "\n", sample->read.group.nr);
1051
1052 for (i = 0; i < sample->read.group.nr; i++) {
1053 struct sample_read_value *value;
1054
1055 value = &sample->read.group.values[i];
1056 printf("..... id %016" PRIx64
1057 ", value %016" PRIx64 "\n",
1058 value->id, value->value);
1059 }
1060 } else
1061 printf("..... id %016" PRIx64 ", value %016" PRIx64 "\n",
1062 sample->read.one.id, sample->read.one.value);
1063}
1064
Arnaldo Carvalho de Melo9fa87272015-02-14 15:08:51 -03001065static void dump_event(struct perf_evlist *evlist, union perf_event *event,
Arnaldo Carvalho de Melo8d50e5b2011-01-29 13:02:00 -02001066 u64 file_offset, struct perf_sample *sample)
Thomas Gleixner9aefcab02010-12-07 12:48:47 +00001067{
1068 if (!dump_trace)
1069 return;
1070
Arnaldo Carvalho de Melo9486aa32011-01-22 20:37:02 -02001071 printf("\n%#" PRIx64 " [%#x]: event: %d\n",
1072 file_offset, event->header.size, event->header.type);
Thomas Gleixner9aefcab02010-12-07 12:48:47 +00001073
1074 trace_event(event);
1075
1076 if (sample)
Arnaldo Carvalho de Melo9fa87272015-02-14 15:08:51 -03001077 perf_evlist__print_tstamp(evlist, event, sample);
Thomas Gleixner9aefcab02010-12-07 12:48:47 +00001078
Arnaldo Carvalho de Melo9486aa32011-01-22 20:37:02 -02001079 printf("%#" PRIx64 " [%#x]: PERF_RECORD_%s", file_offset,
Arnaldo Carvalho de Melo8115d602011-01-29 14:01:45 -02001080 event->header.size, perf_event__name(event->header.type));
Thomas Gleixner9aefcab02010-12-07 12:48:47 +00001081}
1082
Jiri Olsa0f6a3012012-08-07 15:20:45 +02001083static void dump_sample(struct perf_evsel *evsel, union perf_event *event,
Arnaldo Carvalho de Melo8d50e5b2011-01-29 13:02:00 -02001084 struct perf_sample *sample)
Thomas Gleixner9aefcab02010-12-07 12:48:47 +00001085{
Arnaldo Carvalho de Melo7f3be652012-08-01 19:15:52 -03001086 u64 sample_type;
1087
Arnaldo Carvalho de Meloddbc24b2010-12-09 12:20:20 -02001088 if (!dump_trace)
1089 return;
1090
Don Zickus0ea590a2014-02-25 22:43:46 -05001091 printf("(IP, 0x%x): %d/%d: %#" PRIx64 " period: %" PRIu64 " addr: %#" PRIx64 "\n",
Arnaldo Carvalho de Melo9486aa32011-01-22 20:37:02 -02001092 event->header.misc, sample->pid, sample->tid, sample->ip,
David Ahern7cec0922011-05-30 13:08:23 -06001093 sample->period, sample->addr);
Thomas Gleixner9aefcab02010-12-07 12:48:47 +00001094
Jiri Olsa0f6a3012012-08-07 15:20:45 +02001095 sample_type = evsel->attr.sample_type;
Arnaldo Carvalho de Melo7f3be652012-08-01 19:15:52 -03001096
1097 if (sample_type & PERF_SAMPLE_CALLCHAIN)
Kan Liang384b6052015-01-05 13:23:05 -05001098 callchain__printf(evsel, sample);
Roberto Agostino Vitillob5387522012-02-09 23:21:01 +01001099
Arnaldo Carvalho de Meloacf2abb2016-04-18 10:35:03 -03001100 if ((sample_type & PERF_SAMPLE_BRANCH_STACK) && !perf_evsel__has_branch_callstack(evsel))
Roberto Agostino Vitillob5387522012-02-09 23:21:01 +01001101 branch_stack__printf(sample);
Jiri Olsa0f6a3012012-08-07 15:20:45 +02001102
1103 if (sample_type & PERF_SAMPLE_REGS_USER)
Jiri Olsa352ea452014-01-07 13:47:25 +01001104 regs_user__printf(sample);
Jiri Olsa0f6a3012012-08-07 15:20:45 +02001105
Stephane Eranian6a21c0b2014-09-24 13:48:39 +02001106 if (sample_type & PERF_SAMPLE_REGS_INTR)
1107 regs_intr__printf(sample);
1108
Jiri Olsa0f6a3012012-08-07 15:20:45 +02001109 if (sample_type & PERF_SAMPLE_STACK_USER)
1110 stack_user__printf(&sample->user_stack);
Andi Kleen05484292013-01-24 16:10:29 +01001111
1112 if (sample_type & PERF_SAMPLE_WEIGHT)
1113 printf("... weight: %" PRIu64 "\n", sample->weight);
Stephane Eranian98a3b322013-01-24 16:10:35 +01001114
1115 if (sample_type & PERF_SAMPLE_DATA_SRC)
1116 printf(" . data_src: 0x%"PRIx64"\n", sample->data_src);
Jiri Olsa9ede4732012-10-10 17:38:13 +02001117
Kan Liang8780fb22017-08-29 13:11:09 -04001118 if (sample_type & PERF_SAMPLE_PHYS_ADDR)
1119 printf(" .. phys_addr: 0x%"PRIx64"\n", sample->phys_addr);
1120
Andi Kleen475eeab2013-09-20 07:40:43 -07001121 if (sample_type & PERF_SAMPLE_TRANSACTION)
1122 printf("... transaction: %" PRIx64 "\n", sample->transaction);
1123
Jiri Olsa9ede4732012-10-10 17:38:13 +02001124 if (sample_type & PERF_SAMPLE_READ)
1125 sample_read__printf(sample, evsel->attr.read_format);
Thomas Gleixner9aefcab02010-12-07 12:48:47 +00001126}
1127
Jiri Olsadac7f6b2017-08-24 18:27:32 +02001128static void dump_read(struct perf_evsel *evsel, union perf_event *event)
1129{
1130 struct read_event *read_event = &event->read;
1131 u64 read_format;
1132
1133 if (!dump_trace)
1134 return;
1135
1136 printf(": %d %d %s %" PRIu64 "\n", event->read.pid, event->read.tid,
1137 evsel ? perf_evsel__name(evsel) : "FAIL",
1138 event->read.value);
1139
1140 read_format = evsel->attr.read_format;
1141
1142 if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED)
1143 printf("... time enabled : %" PRIu64 "\n", read_event->time_enabled);
1144
1145 if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING)
1146 printf("... time running : %" PRIu64 "\n", read_event->time_running);
1147
1148 if (read_format & PERF_FORMAT_ID)
1149 printf("... id : %" PRIu64 "\n", read_event->id);
1150}
1151
Arnaldo Carvalho de Melo54245fd2015-02-14 14:26:15 -03001152static struct machine *machines__find_for_cpumode(struct machines *machines,
Adrian Hunteref893252013-08-27 11:23:06 +03001153 union perf_event *event,
1154 struct perf_sample *sample)
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -02001155{
Dongsheng Yangad85ace2013-12-20 13:41:47 -05001156 struct machine *machine;
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -02001157
David Ahern7c0f4a42012-07-20 17:25:48 -06001158 if (perf_guest &&
Arnaldo Carvalho de Melo473398a2016-03-22 18:23:43 -03001159 ((sample->cpumode == PERF_RECORD_MISC_GUEST_KERNEL) ||
1160 (sample->cpumode == PERF_RECORD_MISC_GUEST_USER))) {
Nikunj A. Dadhania7fb0a5e2012-04-09 13:52:23 +05301161 u32 pid;
1162
Stephane Eranian5c5e8542013-08-21 12:10:25 +02001163 if (event->header.type == PERF_RECORD_MMAP
1164 || event->header.type == PERF_RECORD_MMAP2)
Nikunj A. Dadhania7fb0a5e2012-04-09 13:52:23 +05301165 pid = event->mmap.pid;
1166 else
Adrian Hunteref893252013-08-27 11:23:06 +03001167 pid = sample->pid;
Nikunj A. Dadhania7fb0a5e2012-04-09 13:52:23 +05301168
Arnaldo Carvalho de Melo54245fd2015-02-14 14:26:15 -03001169 machine = machines__find(machines, pid);
Dongsheng Yangad85ace2013-12-20 13:41:47 -05001170 if (!machine)
Ravi Bangoria3caeaa52015-12-07 12:25:02 +05301171 machine = machines__findnew(machines, DEFAULT_GUEST_KERNEL_ID);
Dongsheng Yangad85ace2013-12-20 13:41:47 -05001172 return machine;
Nikunj A. Dadhania7fb0a5e2012-04-09 13:52:23 +05301173 }
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -02001174
Arnaldo Carvalho de Melo54245fd2015-02-14 14:26:15 -03001175 return &machines->host;
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -02001176}
1177
Arnaldo Carvalho de Melo313e53b2015-02-14 15:05:28 -03001178static int deliver_sample_value(struct perf_evlist *evlist,
Jiri Olsae4caec02012-10-10 18:52:24 +02001179 struct perf_tool *tool,
1180 union perf_event *event,
1181 struct perf_sample *sample,
1182 struct sample_read_value *v,
1183 struct machine *machine)
1184{
Arnaldo Carvalho de Melo313e53b2015-02-14 15:05:28 -03001185 struct perf_sample_id *sid = perf_evlist__id2sid(evlist, v->id);
Jiri Olsae4caec02012-10-10 18:52:24 +02001186
Jiri Olsae4caec02012-10-10 18:52:24 +02001187 if (sid) {
1188 sample->id = v->id;
1189 sample->period = v->value - sid->period;
1190 sid->period = v->value;
1191 }
1192
1193 if (!sid || sid->evsel == NULL) {
Arnaldo Carvalho de Melo313e53b2015-02-14 15:05:28 -03001194 ++evlist->stats.nr_unknown_id;
Jiri Olsae4caec02012-10-10 18:52:24 +02001195 return 0;
1196 }
1197
1198 return tool->sample(tool, event, sample, sid->evsel, machine);
1199}
1200
Arnaldo Carvalho de Melo313e53b2015-02-14 15:05:28 -03001201static int deliver_sample_group(struct perf_evlist *evlist,
Jiri Olsae4caec02012-10-10 18:52:24 +02001202 struct perf_tool *tool,
1203 union perf_event *event,
1204 struct perf_sample *sample,
1205 struct machine *machine)
1206{
1207 int ret = -EINVAL;
1208 u64 i;
1209
1210 for (i = 0; i < sample->read.group.nr; i++) {
Arnaldo Carvalho de Melo313e53b2015-02-14 15:05:28 -03001211 ret = deliver_sample_value(evlist, tool, event, sample,
Jiri Olsae4caec02012-10-10 18:52:24 +02001212 &sample->read.group.values[i],
1213 machine);
1214 if (ret)
1215 break;
1216 }
1217
1218 return ret;
1219}
1220
1221static int
Arnaldo Carvalho de Melo313e53b2015-02-14 15:05:28 -03001222 perf_evlist__deliver_sample(struct perf_evlist *evlist,
Jiri Olsae4caec02012-10-10 18:52:24 +02001223 struct perf_tool *tool,
1224 union perf_event *event,
1225 struct perf_sample *sample,
1226 struct perf_evsel *evsel,
1227 struct machine *machine)
1228{
1229 /* We know evsel != NULL. */
1230 u64 sample_type = evsel->attr.sample_type;
1231 u64 read_format = evsel->attr.read_format;
1232
Soramichi AKIYAMAd94386f2017-01-17 22:22:33 +09001233 /* Standard sample delivery. */
Jiri Olsae4caec02012-10-10 18:52:24 +02001234 if (!(sample_type & PERF_SAMPLE_READ))
1235 return tool->sample(tool, event, sample, evsel, machine);
1236
1237 /* For PERF_SAMPLE_READ we have either single or group mode. */
1238 if (read_format & PERF_FORMAT_GROUP)
Arnaldo Carvalho de Melo313e53b2015-02-14 15:05:28 -03001239 return deliver_sample_group(evlist, tool, event, sample,
Jiri Olsae4caec02012-10-10 18:52:24 +02001240 machine);
1241 else
Arnaldo Carvalho de Melo313e53b2015-02-14 15:05:28 -03001242 return deliver_sample_value(evlist, tool, event, sample,
Jiri Olsae4caec02012-10-10 18:52:24 +02001243 &sample->read.one, machine);
1244}
1245
Arnaldo Carvalho de Melod10eb1e2015-03-03 12:20:38 -03001246static int machines__deliver_event(struct machines *machines,
1247 struct perf_evlist *evlist,
1248 union perf_event *event,
1249 struct perf_sample *sample,
1250 struct perf_tool *tool, u64 file_offset)
Thomas Gleixnercbf41642010-12-05 14:32:55 +01001251{
Arnaldo Carvalho de Melo9e69c212011-03-15 15:44:01 -03001252 struct perf_evsel *evsel;
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -02001253 struct machine *machine;
Arnaldo Carvalho de Melo9e69c212011-03-15 15:44:01 -03001254
Arnaldo Carvalho de Melo9fa87272015-02-14 15:08:51 -03001255 dump_event(evlist, event, file_offset, sample);
Thomas Gleixner532e7262010-12-07 12:48:55 +00001256
Arnaldo Carvalho de Melo313e53b2015-02-14 15:05:28 -03001257 evsel = perf_evlist__id2evsel(evlist, sample->id);
Arnaldo Carvalho de Melo7b275092011-10-29 12:15:04 -02001258
Arnaldo Carvalho de Melofa713a4e2015-03-03 11:48:12 -03001259 machine = machines__find_for_cpumode(machines, event, sample);
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -02001260
Thomas Gleixnercbf41642010-12-05 14:32:55 +01001261 switch (event->header.type) {
1262 case PERF_RECORD_SAMPLE:
Arnaldo Carvalho de Melo9e69c212011-03-15 15:44:01 -03001263 if (evsel == NULL) {
Arnaldo Carvalho de Melo313e53b2015-02-14 15:05:28 -03001264 ++evlist->stats.nr_unknown_id;
Jiri Olsa67822062012-04-12 14:21:01 +02001265 return 0;
Arnaldo Carvalho de Melo9e69c212011-03-15 15:44:01 -03001266 }
Kan Liang1b29ac52015-09-03 08:31:00 -04001267 dump_sample(evsel, event, sample);
Joerg Roedel0c095712012-02-10 18:05:04 +01001268 if (machine == NULL) {
Arnaldo Carvalho de Melo313e53b2015-02-14 15:05:28 -03001269 ++evlist->stats.nr_unprocessable_samples;
Jiri Olsa67822062012-04-12 14:21:01 +02001270 return 0;
Joerg Roedel0c095712012-02-10 18:05:04 +01001271 }
Arnaldo Carvalho de Melo313e53b2015-02-14 15:05:28 -03001272 return perf_evlist__deliver_sample(evlist, tool, event, sample, evsel, machine);
Thomas Gleixnercbf41642010-12-05 14:32:55 +01001273 case PERF_RECORD_MMAP:
Arnaldo Carvalho de Melo45694aa2011-11-28 08:30:20 -02001274 return tool->mmap(tool, event, sample, machine);
Stephane Eranian5c5e8542013-08-21 12:10:25 +02001275 case PERF_RECORD_MMAP2:
Kan Liang930e6fc2015-06-17 09:51:10 -04001276 if (event->header.misc & PERF_RECORD_MISC_PROC_MAP_PARSE_TIMEOUT)
1277 ++evlist->stats.nr_proc_map_timeout;
Stephane Eranian5c5e8542013-08-21 12:10:25 +02001278 return tool->mmap2(tool, event, sample, machine);
Thomas Gleixnercbf41642010-12-05 14:32:55 +01001279 case PERF_RECORD_COMM:
Arnaldo Carvalho de Melo45694aa2011-11-28 08:30:20 -02001280 return tool->comm(tool, event, sample, machine);
Hari Bathinif3b36142017-03-08 02:11:43 +05301281 case PERF_RECORD_NAMESPACES:
1282 return tool->namespaces(tool, event, sample, machine);
Thomas Gleixnercbf41642010-12-05 14:32:55 +01001283 case PERF_RECORD_FORK:
Arnaldo Carvalho de Melo45694aa2011-11-28 08:30:20 -02001284 return tool->fork(tool, event, sample, machine);
Thomas Gleixnercbf41642010-12-05 14:32:55 +01001285 case PERF_RECORD_EXIT:
Arnaldo Carvalho de Melo45694aa2011-11-28 08:30:20 -02001286 return tool->exit(tool, event, sample, machine);
Thomas Gleixnercbf41642010-12-05 14:32:55 +01001287 case PERF_RECORD_LOST:
Arnaldo Carvalho de Melo45694aa2011-11-28 08:30:20 -02001288 if (tool->lost == perf_event__process_lost)
Arnaldo Carvalho de Melo313e53b2015-02-14 15:05:28 -03001289 evlist->stats.total_lost += event->lost.lost;
Arnaldo Carvalho de Melo45694aa2011-11-28 08:30:20 -02001290 return tool->lost(tool, event, sample, machine);
Kan Liangc4937a92015-05-10 15:13:15 -04001291 case PERF_RECORD_LOST_SAMPLES:
1292 if (tool->lost_samples == perf_event__process_lost_samples)
1293 evlist->stats.total_lost_samples += event->lost_samples.lost;
1294 return tool->lost_samples(tool, event, sample, machine);
Thomas Gleixnercbf41642010-12-05 14:32:55 +01001295 case PERF_RECORD_READ:
Jiri Olsadac7f6b2017-08-24 18:27:32 +02001296 dump_read(evsel, event);
Arnaldo Carvalho de Melo45694aa2011-11-28 08:30:20 -02001297 return tool->read(tool, event, sample, evsel, machine);
Thomas Gleixnercbf41642010-12-05 14:32:55 +01001298 case PERF_RECORD_THROTTLE:
Arnaldo Carvalho de Melo45694aa2011-11-28 08:30:20 -02001299 return tool->throttle(tool, event, sample, machine);
Thomas Gleixnercbf41642010-12-05 14:32:55 +01001300 case PERF_RECORD_UNTHROTTLE:
Arnaldo Carvalho de Melo45694aa2011-11-28 08:30:20 -02001301 return tool->unthrottle(tool, event, sample, machine);
Adrian Hunter4a96f7a2015-04-30 17:37:29 +03001302 case PERF_RECORD_AUX:
Alexander Shishkin05a1f472017-03-16 18:41:59 +02001303 if (tool->aux == perf_event__process_aux) {
1304 if (event->aux.flags & PERF_AUX_FLAG_TRUNCATED)
1305 evlist->stats.total_aux_lost += 1;
1306 if (event->aux.flags & PERF_AUX_FLAG_PARTIAL)
1307 evlist->stats.total_aux_partial += 1;
1308 }
Adrian Hunter4a96f7a2015-04-30 17:37:29 +03001309 return tool->aux(tool, event, sample, machine);
Adrian Hunter0ad21f62015-04-30 17:37:30 +03001310 case PERF_RECORD_ITRACE_START:
1311 return tool->itrace_start(tool, event, sample, machine);
Adrian Hunter02860392015-07-21 12:44:03 +03001312 case PERF_RECORD_SWITCH:
1313 case PERF_RECORD_SWITCH_CPU_WIDE:
1314 return tool->context_switch(tool, event, sample, machine);
Thomas Gleixnercbf41642010-12-05 14:32:55 +01001315 default:
Arnaldo Carvalho de Melo313e53b2015-02-14 15:05:28 -03001316 ++evlist->stats.nr_unknown_events;
Thomas Gleixnercbf41642010-12-05 14:32:55 +01001317 return -1;
1318 }
1319}
1320
Adrian Hunterc4468702015-04-09 18:53:48 +03001321static int perf_session__deliver_event(struct perf_session *session,
1322 union perf_event *event,
Adrian Hunterc4468702015-04-09 18:53:48 +03001323 struct perf_tool *tool,
1324 u64 file_offset)
1325{
Jiri Olsa93d10af2017-08-03 13:21:14 +02001326 struct perf_sample sample;
Adrian Hunterc4468702015-04-09 18:53:48 +03001327 int ret;
1328
Jiri Olsa93d10af2017-08-03 13:21:14 +02001329 ret = perf_evlist__parse_sample(session->evlist, event, &sample);
1330 if (ret) {
1331 pr_err("Can't parse sample, err = %d\n", ret);
1332 return ret;
1333 }
1334
1335 ret = auxtrace__process_event(session, event, &sample, tool);
Adrian Hunterc4468702015-04-09 18:53:48 +03001336 if (ret < 0)
1337 return ret;
1338 if (ret > 0)
1339 return 0;
1340
1341 return machines__deliver_event(&session->machines, session->evlist,
Jiri Olsa93d10af2017-08-03 13:21:14 +02001342 event, &sample, tool, file_offset);
Adrian Hunterc4468702015-04-09 18:53:48 +03001343}
1344
Adrian Hunterd5652d82014-07-23 22:19:58 +03001345static s64 perf_session__process_user_event(struct perf_session *session,
1346 union perf_event *event,
Adrian Hunterd5652d82014-07-23 22:19:58 +03001347 u64 file_offset)
Thomas Gleixnerba74f062010-12-07 12:49:01 +00001348{
Arnaldo Carvalho de Melod704ebd2015-03-03 12:37:54 -03001349 struct ordered_events *oe = &session->ordered_events;
Arnaldo Carvalho de Melo9870d782015-03-31 12:48:16 -03001350 struct perf_tool *tool = session->tool;
Arnaldo Carvalho de Melof250b092017-11-23 15:35:04 -03001351 struct perf_sample sample = { .time = 0, };
Jiri Olsa8ceb41d2017-01-23 22:07:59 +01001352 int fd = perf_data__fd(session->data);
Arnaldo Carvalho de Melo10d0f082011-11-11 22:45:41 -02001353 int err;
1354
Arnaldo Carvalho de Melof250b092017-11-23 15:35:04 -03001355 dump_event(session->evlist, event, file_offset, &sample);
Thomas Gleixnerba74f062010-12-07 12:49:01 +00001356
1357 /* These events are processed right away */
1358 switch (event->header.type) {
1359 case PERF_RECORD_HEADER_ATTR:
Adrian Hunter47c3d102013-07-04 16:20:21 +03001360 err = tool->attr(tool, event, &session->evlist);
Adrian Huntercfe1c412014-07-31 09:00:45 +03001361 if (err == 0) {
Arnaldo Carvalho de Melo7b56cce2012-08-01 19:31:00 -03001362 perf_session__set_id_hdr_size(session);
Adrian Huntercfe1c412014-07-31 09:00:45 +03001363 perf_session__set_comm_exec(session);
1364 }
Arnaldo Carvalho de Melo10d0f082011-11-11 22:45:41 -02001365 return err;
Jiri Olsaffe777252015-10-25 15:51:36 +01001366 case PERF_RECORD_EVENT_UPDATE:
1367 return tool->event_update(tool, event, &session->evlist);
Jiri Olsaf67697b2014-02-04 15:37:48 +01001368 case PERF_RECORD_HEADER_EVENT_TYPE:
1369 /*
1370 * Depreceated, but we need to handle it for sake
1371 * of old data files create in pipe mode.
1372 */
1373 return 0;
Thomas Gleixnerba74f062010-12-07 12:49:01 +00001374 case PERF_RECORD_HEADER_TRACING_DATA:
1375 /* setup for reading amidst mmap */
Jiri Olsacc9784bd2013-10-15 16:27:34 +02001376 lseek(fd, file_offset, SEEK_SET);
Adrian Hunter47c3d102013-07-04 16:20:21 +03001377 return tool->tracing_data(tool, event, session);
Thomas Gleixnerba74f062010-12-07 12:49:01 +00001378 case PERF_RECORD_HEADER_BUILD_ID:
Arnaldo Carvalho de Melo45694aa2011-11-28 08:30:20 -02001379 return tool->build_id(tool, event, session);
Thomas Gleixnerba74f062010-12-07 12:49:01 +00001380 case PERF_RECORD_FINISHED_ROUND:
Arnaldo Carvalho de Melod704ebd2015-03-03 12:37:54 -03001381 return tool->finished_round(tool, event, oe);
Adrian Hunter3c659ee2014-10-27 15:49:22 +02001382 case PERF_RECORD_ID_INDEX:
1383 return tool->id_index(tool, event, session);
Adrian Huntera16ac022015-04-09 18:53:43 +03001384 case PERF_RECORD_AUXTRACE_INFO:
1385 return tool->auxtrace_info(tool, event, session);
1386 case PERF_RECORD_AUXTRACE:
1387 /* setup for reading amidst mmap */
1388 lseek(fd, file_offset + event->header.size, SEEK_SET);
1389 return tool->auxtrace(tool, event, session);
Adrian Huntere9bf54d2015-04-09 18:53:47 +03001390 case PERF_RECORD_AUXTRACE_ERROR:
Adrian Hunter85ed4722015-04-09 18:53:50 +03001391 perf_session__auxtrace_error_inc(session, event);
Adrian Huntere9bf54d2015-04-09 18:53:47 +03001392 return tool->auxtrace_error(tool, event, session);
Jiri Olsa5f3339d2015-10-25 15:51:19 +01001393 case PERF_RECORD_THREAD_MAP:
1394 return tool->thread_map(tool, event, session);
Jiri Olsa6640b6c2015-10-25 15:51:23 +01001395 case PERF_RECORD_CPU_MAP:
1396 return tool->cpu_map(tool, event, session);
Jiri Olsa374fb9e2015-10-25 15:51:27 +01001397 case PERF_RECORD_STAT_CONFIG:
1398 return tool->stat_config(tool, event, session);
Jiri Olsad80518c2015-10-25 15:51:30 +01001399 case PERF_RECORD_STAT:
1400 return tool->stat(tool, event, session);
Jiri Olsa2d8f0f12015-10-25 15:51:33 +01001401 case PERF_RECORD_STAT_ROUND:
1402 return tool->stat_round(tool, event, session);
Adrian Hunter46bc29b2016-03-08 10:38:44 +02001403 case PERF_RECORD_TIME_CONV:
1404 session->time_conv = event->time_conv;
1405 return tool->time_conv(tool, event, session);
David Carrillo-Cisnerose9def1b2017-07-17 21:25:48 -07001406 case PERF_RECORD_HEADER_FEATURE:
1407 return tool->feature(tool, event, session);
Thomas Gleixnerba74f062010-12-07 12:49:01 +00001408 default:
1409 return -EINVAL;
1410 }
1411}
1412
Adrian Huntera2938292014-10-27 15:49:23 +02001413int perf_session__deliver_synth_event(struct perf_session *session,
1414 union perf_event *event,
Arnaldo Carvalho de Melob7b61cb2015-03-03 11:58:45 -03001415 struct perf_sample *sample)
Adrian Huntera2938292014-10-27 15:49:23 +02001416{
Arnaldo Carvalho de Melofa713a4e2015-03-03 11:48:12 -03001417 struct perf_evlist *evlist = session->evlist;
Arnaldo Carvalho de Melo9870d782015-03-31 12:48:16 -03001418 struct perf_tool *tool = session->tool;
Arnaldo Carvalho de Melofa713a4e2015-03-03 11:48:12 -03001419
1420 events_stats__inc(&evlist->stats, event->header.type);
Adrian Huntera2938292014-10-27 15:49:23 +02001421
1422 if (event->header.type >= PERF_RECORD_USER_TYPE_START)
Arnaldo Carvalho de Melob7b61cb2015-03-03 11:58:45 -03001423 return perf_session__process_user_event(session, event, 0);
Adrian Huntera2938292014-10-27 15:49:23 +02001424
Arnaldo Carvalho de Melofa713a4e2015-03-03 11:48:12 -03001425 return machines__deliver_event(&session->machines, evlist, event, sample, tool, 0);
Adrian Huntera2938292014-10-27 15:49:23 +02001426}
1427
Jiri Olsa268fb202012-05-30 14:23:43 +02001428static void event_swap(union perf_event *event, bool sample_id_all)
1429{
1430 perf_event__swap_op swap;
1431
1432 swap = perf_event__swap_ops[event->header.type];
1433 if (swap)
1434 swap(event, sample_id_all);
1435}
1436
Adrian Hunter5a52f332014-07-31 09:00:57 +03001437int perf_session__peek_event(struct perf_session *session, off_t file_offset,
1438 void *buf, size_t buf_sz,
1439 union perf_event **event_ptr,
1440 struct perf_sample *sample)
1441{
1442 union perf_event *event;
1443 size_t hdr_sz, rest;
1444 int fd;
1445
1446 if (session->one_mmap && !session->header.needs_swap) {
1447 event = file_offset - session->one_mmap_offset +
1448 session->one_mmap_addr;
1449 goto out_parse_sample;
1450 }
1451
Jiri Olsa8ceb41d2017-01-23 22:07:59 +01001452 if (perf_data__is_pipe(session->data))
Adrian Hunter5a52f332014-07-31 09:00:57 +03001453 return -1;
1454
Jiri Olsa8ceb41d2017-01-23 22:07:59 +01001455 fd = perf_data__fd(session->data);
Adrian Hunter5a52f332014-07-31 09:00:57 +03001456 hdr_sz = sizeof(struct perf_event_header);
1457
1458 if (buf_sz < hdr_sz)
1459 return -1;
1460
1461 if (lseek(fd, file_offset, SEEK_SET) == (off_t)-1 ||
Adrian Hunter554e92e2015-05-19 16:05:45 +03001462 readn(fd, buf, hdr_sz) != (ssize_t)hdr_sz)
Adrian Hunter5a52f332014-07-31 09:00:57 +03001463 return -1;
1464
1465 event = (union perf_event *)buf;
1466
1467 if (session->header.needs_swap)
1468 perf_event_header__bswap(&event->header);
1469
Adrian Hunter554e92e2015-05-19 16:05:45 +03001470 if (event->header.size < hdr_sz || event->header.size > buf_sz)
Adrian Hunter5a52f332014-07-31 09:00:57 +03001471 return -1;
1472
1473 rest = event->header.size - hdr_sz;
1474
Adrian Hunter554e92e2015-05-19 16:05:45 +03001475 if (readn(fd, buf, rest) != (ssize_t)rest)
Adrian Hunter5a52f332014-07-31 09:00:57 +03001476 return -1;
1477
1478 if (session->header.needs_swap)
1479 event_swap(event, perf_evlist__sample_id_all(session->evlist));
1480
1481out_parse_sample:
1482
1483 if (sample && event->header.type < PERF_RECORD_USER_TYPE_START &&
1484 perf_evlist__parse_sample(session->evlist, event, sample))
1485 return -1;
1486
1487 *event_ptr = event;
1488
1489 return 0;
1490}
1491
Adrian Hunterd5652d82014-07-23 22:19:58 +03001492static s64 perf_session__process_event(struct perf_session *session,
Arnaldo Carvalho de Melob7b61cb2015-03-03 11:58:45 -03001493 union perf_event *event, u64 file_offset)
Arnaldo Carvalho de Melo06aae5902009-12-27 21:36:59 -02001494{
Arnaldo Carvalho de Melo313e53b2015-02-14 15:05:28 -03001495 struct perf_evlist *evlist = session->evlist;
Arnaldo Carvalho de Melo9870d782015-03-31 12:48:16 -03001496 struct perf_tool *tool = session->tool;
Thomas Gleixnercbf41642010-12-05 14:32:55 +01001497 int ret;
Arnaldo Carvalho de Melo640c03c2010-12-02 14:10:21 -02001498
Jiri Olsa268fb202012-05-30 14:23:43 +02001499 if (session->header.needs_swap)
Arnaldo Carvalho de Melo313e53b2015-02-14 15:05:28 -03001500 event_swap(event, perf_evlist__sample_id_all(evlist));
Arnaldo Carvalho de Melo640c03c2010-12-02 14:10:21 -02001501
Thomas Gleixner9aefcab02010-12-07 12:48:47 +00001502 if (event->header.type >= PERF_RECORD_HEADER_MAX)
1503 return -EINVAL;
Arnaldo Carvalho de Melo640c03c2010-12-02 14:10:21 -02001504
Arnaldo Carvalho de Melo313e53b2015-02-14 15:05:28 -03001505 events_stats__inc(&evlist->stats, event->header.type);
Thomas Gleixner9aefcab02010-12-07 12:48:47 +00001506
1507 if (event->header.type >= PERF_RECORD_USER_TYPE_START)
Arnaldo Carvalho de Melob7b61cb2015-03-03 11:58:45 -03001508 return perf_session__process_user_event(session, event, file_offset);
Thomas Gleixnercbf41642010-12-05 14:32:55 +01001509
Jiri Olsa0a8cb852014-07-06 14:18:21 +02001510 if (tool->ordered_events) {
Mathieu Poirier631e8f02018-01-10 13:31:52 -07001511 u64 timestamp = -1ULL;
Jiri Olsa93d10af2017-08-03 13:21:14 +02001512
1513 ret = perf_evlist__parse_sample_timestamp(evlist, event, &timestamp);
Mathieu Poirier631e8f02018-01-10 13:31:52 -07001514 if (ret && ret != -1)
Jiri Olsa93d10af2017-08-03 13:21:14 +02001515 return ret;
1516
1517 ret = perf_session__queue_event(session, event, timestamp, file_offset);
Thomas Gleixnercbf41642010-12-05 14:32:55 +01001518 if (ret != -ETIME)
1519 return ret;
1520 }
1521
Jiri Olsa93d10af2017-08-03 13:21:14 +02001522 return perf_session__deliver_event(session, event, tool, file_offset);
Arnaldo Carvalho de Melo06aae5902009-12-27 21:36:59 -02001523}
1524
Arnaldo Carvalho de Melo316c7132013-11-05 15:32:36 -03001525void perf_event_header__bswap(struct perf_event_header *hdr)
Arnaldo Carvalho de Meloba215942010-01-14 12:23:10 -02001526{
Arnaldo Carvalho de Melo316c7132013-11-05 15:32:36 -03001527 hdr->type = bswap_32(hdr->type);
1528 hdr->misc = bswap_16(hdr->misc);
1529 hdr->size = bswap_16(hdr->size);
Arnaldo Carvalho de Meloba215942010-01-14 12:23:10 -02001530}
1531
Arnaldo Carvalho de Melob424eba2011-11-09 13:24:25 -02001532struct thread *perf_session__findnew(struct perf_session *session, pid_t pid)
1533{
Adrian Hunter1fcb8762014-07-14 13:02:25 +03001534 return machine__findnew_thread(&session->machines.host, -1, pid);
Arnaldo Carvalho de Melob424eba2011-11-09 13:24:25 -02001535}
1536
Masami Hiramatsu9d8b1722015-12-09 11:11:23 +09001537int perf_session__register_idle_thread(struct perf_session *session)
Arnaldo Carvalho de Melo06aae5902009-12-27 21:36:59 -02001538{
Adrian Hunter1fcb8762014-07-14 13:02:25 +03001539 struct thread *thread;
Masami Hiramatsu9d8b1722015-12-09 11:11:23 +09001540 int err = 0;
Arnaldo Carvalho de Melo06aae5902009-12-27 21:36:59 -02001541
Adrian Hunter1fcb8762014-07-14 13:02:25 +03001542 thread = machine__findnew_thread(&session->machines.host, 0, 0);
Frederic Weisbecker162f0be2013-09-11 16:18:24 +02001543 if (thread == NULL || thread__set_comm(thread, "swapper", 0)) {
Arnaldo Carvalho de Melo06aae5902009-12-27 21:36:59 -02001544 pr_err("problem inserting idle task.\n");
Masami Hiramatsu9d8b1722015-12-09 11:11:23 +09001545 err = -1;
Arnaldo Carvalho de Melo06aae5902009-12-27 21:36:59 -02001546 }
1547
Hari Bathinif3b36142017-03-08 02:11:43 +05301548 if (thread == NULL || thread__set_namespaces(thread, 0, NULL)) {
1549 pr_err("problem inserting idle task.\n");
1550 err = -1;
1551 }
1552
Masami Hiramatsu9d8b1722015-12-09 11:11:23 +09001553 /* machine__findnew_thread() got the thread, so put it */
1554 thread__put(thread);
1555 return err;
Arnaldo Carvalho de Melo06aae5902009-12-27 21:36:59 -02001556}
1557
Wang Nanf06149c2016-07-14 08:34:46 +00001558static void
1559perf_session__warn_order(const struct perf_session *session)
1560{
1561 const struct ordered_events *oe = &session->ordered_events;
1562 struct perf_evsel *evsel;
1563 bool should_warn = true;
1564
1565 evlist__for_each_entry(session->evlist, evsel) {
1566 if (evsel->attr.write_backward)
1567 should_warn = false;
1568 }
1569
1570 if (!should_warn)
1571 return;
1572 if (oe->nr_unordered_events != 0)
1573 ui__warning("%u out of order events recorded.\n", oe->nr_unordered_events);
1574}
1575
Arnaldo Carvalho de Melo9870d782015-03-31 12:48:16 -03001576static void perf_session__warn_about_errors(const struct perf_session *session)
Arnaldo Carvalho de Melo11095992011-01-04 16:25:15 -02001577{
Arnaldo Carvalho de Melo9870d782015-03-31 12:48:16 -03001578 const struct events_stats *stats = &session->evlist->stats;
Arnaldo Carvalho de Melo9870d782015-03-31 12:48:16 -03001579
1580 if (session->tool->lost == perf_event__process_lost &&
Arnaldo Carvalho de Meloccda0682015-02-14 14:57:13 -03001581 stats->nr_events[PERF_RECORD_LOST] != 0) {
Arnaldo Carvalho de Melo7b275092011-10-29 12:15:04 -02001582 ui__warning("Processed %d events and lost %d chunks!\n\n"
1583 "Check IO/CPU overload!\n\n",
Arnaldo Carvalho de Meloccda0682015-02-14 14:57:13 -03001584 stats->nr_events[0],
1585 stats->nr_events[PERF_RECORD_LOST]);
Arnaldo Carvalho de Melo11095992011-01-04 16:25:15 -02001586 }
1587
Kan Liangc4937a92015-05-10 15:13:15 -04001588 if (session->tool->lost_samples == perf_event__process_lost_samples) {
1589 double drop_rate;
1590
1591 drop_rate = (double)stats->total_lost_samples /
1592 (double) (stats->nr_events[PERF_RECORD_SAMPLE] + stats->total_lost_samples);
1593 if (drop_rate > 0.05) {
Arnaldo Carvalho de Melo41a43da2018-04-05 14:34:09 -03001594 ui__warning("Processed %" PRIu64 " samples and lost %3.2f%%!\n\n",
Kan Liangc4937a92015-05-10 15:13:15 -04001595 stats->nr_events[PERF_RECORD_SAMPLE] + stats->total_lost_samples,
1596 drop_rate * 100.0);
1597 }
1598 }
1599
Adrian Huntera38f48e2015-09-25 16:15:37 +03001600 if (session->tool->aux == perf_event__process_aux &&
1601 stats->total_aux_lost != 0) {
1602 ui__warning("AUX data lost %" PRIu64 " times out of %u!\n\n",
1603 stats->total_aux_lost,
1604 stats->nr_events[PERF_RECORD_AUX]);
1605 }
1606
Alexander Shishkin05a1f472017-03-16 18:41:59 +02001607 if (session->tool->aux == perf_event__process_aux &&
1608 stats->total_aux_partial != 0) {
1609 bool vmm_exclusive = false;
1610
1611 (void)sysfs__read_bool("module/kvm_intel/parameters/vmm_exclusive",
1612 &vmm_exclusive);
1613
1614 ui__warning("AUX data had gaps in it %" PRIu64 " times out of %u!\n\n"
1615 "Are you running a KVM guest in the background?%s\n\n",
1616 stats->total_aux_partial,
1617 stats->nr_events[PERF_RECORD_AUX],
1618 vmm_exclusive ?
1619 "\nReloading kvm_intel module with vmm_exclusive=0\n"
1620 "will reduce the gaps to only guest's timeslices." :
1621 "");
1622 }
1623
Arnaldo Carvalho de Meloccda0682015-02-14 14:57:13 -03001624 if (stats->nr_unknown_events != 0) {
Arnaldo Carvalho de Melo11095992011-01-04 16:25:15 -02001625 ui__warning("Found %u unknown events!\n\n"
1626 "Is this an older tool processing a perf.data "
1627 "file generated by a more recent tool?\n\n"
1628 "If that is not the case, consider "
1629 "reporting to linux-kernel@vger.kernel.org.\n\n",
Arnaldo Carvalho de Meloccda0682015-02-14 14:57:13 -03001630 stats->nr_unknown_events);
Arnaldo Carvalho de Melo11095992011-01-04 16:25:15 -02001631 }
1632
Arnaldo Carvalho de Meloccda0682015-02-14 14:57:13 -03001633 if (stats->nr_unknown_id != 0) {
Arnaldo Carvalho de Melo9e69c212011-03-15 15:44:01 -03001634 ui__warning("%u samples with id not present in the header\n",
Arnaldo Carvalho de Meloccda0682015-02-14 14:57:13 -03001635 stats->nr_unknown_id);
Arnaldo Carvalho de Melo9e69c212011-03-15 15:44:01 -03001636 }
1637
Arnaldo Carvalho de Meloccda0682015-02-14 14:57:13 -03001638 if (stats->nr_invalid_chains != 0) {
Arnaldo Carvalho de Melo75be9892015-02-14 14:50:11 -03001639 ui__warning("Found invalid callchains!\n\n"
1640 "%u out of %u events were discarded for this reason.\n\n"
1641 "Consider reporting to linux-kernel@vger.kernel.org.\n\n",
Arnaldo Carvalho de Meloccda0682015-02-14 14:57:13 -03001642 stats->nr_invalid_chains,
1643 stats->nr_events[PERF_RECORD_SAMPLE]);
Arnaldo Carvalho de Melo75be9892015-02-14 14:50:11 -03001644 }
Joerg Roedel0c095712012-02-10 18:05:04 +01001645
Arnaldo Carvalho de Meloccda0682015-02-14 14:57:13 -03001646 if (stats->nr_unprocessable_samples != 0) {
Joerg Roedel0c095712012-02-10 18:05:04 +01001647 ui__warning("%u unprocessable samples recorded.\n"
1648 "Do you have a KVM guest running and not using 'perf kvm'?\n",
Arnaldo Carvalho de Meloccda0682015-02-14 14:57:13 -03001649 stats->nr_unprocessable_samples);
Joerg Roedel0c095712012-02-10 18:05:04 +01001650 }
Jiri Olsaf61ff6c2014-11-26 16:39:31 +01001651
Wang Nanf06149c2016-07-14 08:34:46 +00001652 perf_session__warn_order(session);
Adrian Hunter85ed4722015-04-09 18:53:50 +03001653
1654 events_stats__auxtrace_error_warn(stats);
Kan Liang930e6fc2015-06-17 09:51:10 -04001655
1656 if (stats->nr_proc_map_timeout != 0) {
1657 ui__warning("%d map information files for pre-existing threads were\n"
1658 "not processed, if there are samples for addresses they\n"
1659 "will not be resolved, you may find out which are these\n"
1660 "threads by running with -v and redirecting the output\n"
Kan Liang9d9cad72015-06-17 09:51:11 -04001661 "to a file.\n"
1662 "The time limit to process proc map is too short?\n"
1663 "Increase it by --proc-map-timeout\n",
Kan Liang930e6fc2015-06-17 09:51:10 -04001664 stats->nr_proc_map_timeout);
1665 }
Arnaldo Carvalho de Melo11095992011-01-04 16:25:15 -02001666}
1667
Adrian Huntera5499b32015-05-29 16:33:30 +03001668static int perf_session__flush_thread_stack(struct thread *thread,
1669 void *p __maybe_unused)
1670{
1671 return thread_stack__flush(thread);
1672}
1673
1674static int perf_session__flush_thread_stacks(struct perf_session *session)
1675{
1676 return machines__for_each_thread(&session->machines,
1677 perf_session__flush_thread_stack,
1678 NULL);
1679}
1680
Tom Zanussi8dc58102010-04-01 23:59:15 -05001681volatile int session_done;
1682
Arnaldo Carvalho de Melob7b61cb2015-03-03 11:58:45 -03001683static int __perf_session__process_pipe_events(struct perf_session *session)
Tom Zanussi8dc58102010-04-01 23:59:15 -05001684{
Arnaldo Carvalho de Melofa713a4e2015-03-03 11:48:12 -03001685 struct ordered_events *oe = &session->ordered_events;
Arnaldo Carvalho de Melo9870d782015-03-31 12:48:16 -03001686 struct perf_tool *tool = session->tool;
Jiri Olsa8ceb41d2017-01-23 22:07:59 +01001687 int fd = perf_data__fd(session->data);
Stephane Eranian444d2862012-05-15 13:28:12 +02001688 union perf_event *event;
1689 uint32_t size, cur_size = 0;
1690 void *buf = NULL;
Adrian Hunterd5652d82014-07-23 22:19:58 +03001691 s64 skip = 0;
Tom Zanussi8dc58102010-04-01 23:59:15 -05001692 u64 head;
Jiri Olsa727ebd52013-11-28 11:30:14 +01001693 ssize_t err;
Tom Zanussi8dc58102010-04-01 23:59:15 -05001694 void *p;
1695
Arnaldo Carvalho de Melo45694aa2011-11-28 08:30:20 -02001696 perf_tool__fill_defaults(tool);
Tom Zanussi8dc58102010-04-01 23:59:15 -05001697
1698 head = 0;
Stephane Eranian444d2862012-05-15 13:28:12 +02001699 cur_size = sizeof(union perf_event);
1700
1701 buf = malloc(cur_size);
1702 if (!buf)
1703 return -errno;
David Carrillo-Cisneros1e0d4f02017-04-10 13:14:27 -07001704 ordered_events__set_copy_on_queue(oe, true);
Tom Zanussi8dc58102010-04-01 23:59:15 -05001705more:
Stephane Eranian444d2862012-05-15 13:28:12 +02001706 event = buf;
Jiri Olsacc9784bd2013-10-15 16:27:34 +02001707 err = readn(fd, event, sizeof(struct perf_event_header));
Tom Zanussi8dc58102010-04-01 23:59:15 -05001708 if (err <= 0) {
1709 if (err == 0)
1710 goto done;
1711
1712 pr_err("failed to read event header\n");
1713 goto out_err;
1714 }
1715
Arnaldo Carvalho de Melo316c7132013-11-05 15:32:36 -03001716 if (session->header.needs_swap)
Stephane Eranian444d2862012-05-15 13:28:12 +02001717 perf_event_header__bswap(&event->header);
Tom Zanussi8dc58102010-04-01 23:59:15 -05001718
Stephane Eranian444d2862012-05-15 13:28:12 +02001719 size = event->header.size;
Adrian Hunter27389d72013-07-04 16:20:27 +03001720 if (size < sizeof(struct perf_event_header)) {
1721 pr_err("bad event header size\n");
1722 goto out_err;
1723 }
Tom Zanussi8dc58102010-04-01 23:59:15 -05001724
Stephane Eranian444d2862012-05-15 13:28:12 +02001725 if (size > cur_size) {
1726 void *new = realloc(buf, size);
1727 if (!new) {
1728 pr_err("failed to allocate memory to read event\n");
1729 goto out_err;
1730 }
1731 buf = new;
1732 cur_size = size;
1733 event = buf;
1734 }
1735 p = event;
Tom Zanussi8dc58102010-04-01 23:59:15 -05001736 p += sizeof(struct perf_event_header);
1737
Tom Zanussi794e43b2010-05-05 00:27:40 -05001738 if (size - sizeof(struct perf_event_header)) {
Jiri Olsacc9784bd2013-10-15 16:27:34 +02001739 err = readn(fd, p, size - sizeof(struct perf_event_header));
Tom Zanussi794e43b2010-05-05 00:27:40 -05001740 if (err <= 0) {
1741 if (err == 0) {
1742 pr_err("unexpected end of event stream\n");
1743 goto done;
1744 }
Tom Zanussi8dc58102010-04-01 23:59:15 -05001745
Tom Zanussi794e43b2010-05-05 00:27:40 -05001746 pr_err("failed to read event data\n");
1747 goto out_err;
1748 }
Tom Zanussi8dc58102010-04-01 23:59:15 -05001749 }
1750
Arnaldo Carvalho de Melob7b61cb2015-03-03 11:58:45 -03001751 if ((skip = perf_session__process_event(session, event, head)) < 0) {
Jiri Olsa9389a462012-04-16 20:42:51 +02001752 pr_err("%#" PRIx64 " [%#x]: failed to process type: %d\n",
Stephane Eranian444d2862012-05-15 13:28:12 +02001753 head, event->header.size, event->header.type);
Jiri Olsa9389a462012-04-16 20:42:51 +02001754 err = -EINVAL;
1755 goto out_err;
Tom Zanussi8dc58102010-04-01 23:59:15 -05001756 }
1757
1758 head += size;
1759
Tom Zanussi8dc58102010-04-01 23:59:15 -05001760 if (skip > 0)
1761 head += skip;
1762
1763 if (!session_done())
1764 goto more;
1765done:
Adrian Hunter8c16b642013-10-18 15:29:02 +03001766 /* do the final flush for ordered samples */
Arnaldo Carvalho de Melob7b61cb2015-03-03 11:58:45 -03001767 err = ordered_events__flush(oe, OE_FLUSH__FINAL);
Adrian Hunterc4468702015-04-09 18:53:48 +03001768 if (err)
1769 goto out_err;
1770 err = auxtrace__flush_events(session, tool);
Adrian Huntera5499b32015-05-29 16:33:30 +03001771 if (err)
1772 goto out_err;
1773 err = perf_session__flush_thread_stacks(session);
Tom Zanussi8dc58102010-04-01 23:59:15 -05001774out_err:
Stephane Eranian444d2862012-05-15 13:28:12 +02001775 free(buf);
Jiri Olsa075ca1e2018-01-07 17:03:54 +01001776 if (!tool->no_warn)
1777 perf_session__warn_about_errors(session);
Jiri Olsaadc56ed2014-06-10 22:50:03 +02001778 ordered_events__free(&session->ordered_events);
Adrian Hunterc4468702015-04-09 18:53:48 +03001779 auxtrace__free_events(session);
Tom Zanussi8dc58102010-04-01 23:59:15 -05001780 return err;
1781}
1782
Frederic Weisbecker998bedc2011-05-23 13:06:28 +02001783static union perf_event *
1784fetch_mmaped_event(struct perf_session *session,
1785 u64 head, size_t mmap_size, char *buf)
1786{
1787 union perf_event *event;
1788
1789 /*
1790 * Ensure we have enough space remaining to read
1791 * the size of the event in the headers.
1792 */
1793 if (head + sizeof(event->header) > mmap_size)
1794 return NULL;
1795
1796 event = (union perf_event *)(buf + head);
1797
1798 if (session->header.needs_swap)
1799 perf_event_header__bswap(&event->header);
1800
Adrian Hunter27389d72013-07-04 16:20:27 +03001801 if (head + event->header.size > mmap_size) {
1802 /* We're not fetching the event so swap back again */
1803 if (session->header.needs_swap)
1804 perf_event_header__bswap(&event->header);
Frederic Weisbecker998bedc2011-05-23 13:06:28 +02001805 return NULL;
Adrian Hunter27389d72013-07-04 16:20:27 +03001806 }
Frederic Weisbecker998bedc2011-05-23 13:06:28 +02001807
1808 return event;
1809}
1810
David Miller35d48dd2012-11-10 14:12:19 -05001811/*
1812 * On 64bit we can mmap the data file in one go. No need for tiny mmap
1813 * slices. On 32bit we use 32MB.
1814 */
1815#if BITS_PER_LONG == 64
1816#define MMAP_SIZE ULLONG_MAX
1817#define NUM_MMAPS 1
1818#else
1819#define MMAP_SIZE (32 * 1024 * 1024ULL)
1820#define NUM_MMAPS 128
1821#endif
1822
Namhyung Kim4ac30cf2015-01-29 17:06:43 +09001823static int __perf_session__process_events(struct perf_session *session,
1824 u64 data_offset, u64 data_size,
Arnaldo Carvalho de Melob7b61cb2015-03-03 11:58:45 -03001825 u64 file_size)
Arnaldo Carvalho de Melo06aae5902009-12-27 21:36:59 -02001826{
Arnaldo Carvalho de Melofa713a4e2015-03-03 11:48:12 -03001827 struct ordered_events *oe = &session->ordered_events;
Arnaldo Carvalho de Melo9870d782015-03-31 12:48:16 -03001828 struct perf_tool *tool = session->tool;
Jiri Olsa8ceb41d2017-01-23 22:07:59 +01001829 int fd = perf_data__fd(session->data);
Adrian Hunterd5652d82014-07-23 22:19:58 +03001830 u64 head, page_offset, file_offset, file_pos, size;
Thomas Gleixnerfe174202010-11-30 17:49:49 +00001831 int err, mmap_prot, mmap_flags, map_idx = 0;
Arnaldo Carvalho de Melo0c1fe6b2012-10-06 14:57:10 -03001832 size_t mmap_size;
David Miller35d48dd2012-11-10 14:12:19 -05001833 char *buf, *mmaps[NUM_MMAPS];
Arnaldo Carvalho de Melo8115d602011-01-29 14:01:45 -02001834 union perf_event *event;
Arnaldo Carvalho de Melo4d3001f2013-10-23 15:40:38 -03001835 struct ui_progress prog;
Adrian Hunterd5652d82014-07-23 22:19:58 +03001836 s64 skip;
Thomas Gleixner0331ee02010-11-30 17:49:38 +00001837
Arnaldo Carvalho de Melo45694aa2011-11-28 08:30:20 -02001838 perf_tool__fill_defaults(tool);
Arnaldo Carvalho de Melo06aae5902009-12-27 21:36:59 -02001839
Thomas Gleixner0331ee02010-11-30 17:49:38 +00001840 page_offset = page_size * (data_offset / page_size);
1841 file_offset = page_offset;
1842 head = data_offset - page_offset;
Arnaldo Carvalho de Melo06aae5902009-12-27 21:36:59 -02001843
Mark Rutland381c02f2015-09-16 18:18:49 +01001844 if (data_size == 0)
1845 goto out;
1846
1847 if (data_offset + data_size < file_size)
Thomas Gleixnerd6513282010-11-30 17:49:44 +00001848 file_size = data_offset + data_size;
1849
Jiri Olsa82338222017-09-08 14:05:10 +02001850 ui_progress__init_size(&prog, file_size, "Processing events...");
Thomas Gleixner55b446292010-11-30 17:49:46 +00001851
David Miller35d48dd2012-11-10 14:12:19 -05001852 mmap_size = MMAP_SIZE;
Adrian Hunter919d86d2014-07-14 13:02:51 +03001853 if (mmap_size > file_size) {
Thomas Gleixner55b446292010-11-30 17:49:46 +00001854 mmap_size = file_size;
Adrian Hunter919d86d2014-07-14 13:02:51 +03001855 session->one_mmap = true;
1856 }
Thomas Gleixner55b446292010-11-30 17:49:46 +00001857
Thomas Gleixnerfe174202010-11-30 17:49:49 +00001858 memset(mmaps, 0, sizeof(mmaps));
1859
Arnaldo Carvalho de Meloba215942010-01-14 12:23:10 -02001860 mmap_prot = PROT_READ;
1861 mmap_flags = MAP_SHARED;
1862
Thomas Gleixner0331ee02010-11-30 17:49:38 +00001863 if (session->header.needs_swap) {
Arnaldo Carvalho de Meloba215942010-01-14 12:23:10 -02001864 mmap_prot |= PROT_WRITE;
1865 mmap_flags = MAP_PRIVATE;
1866 }
Arnaldo Carvalho de Melo06aae5902009-12-27 21:36:59 -02001867remap:
Jiri Olsacc9784bd2013-10-15 16:27:34 +02001868 buf = mmap(NULL, mmap_size, mmap_prot, mmap_flags, fd,
Thomas Gleixner55b446292010-11-30 17:49:46 +00001869 file_offset);
Arnaldo Carvalho de Melo06aae5902009-12-27 21:36:59 -02001870 if (buf == MAP_FAILED) {
1871 pr_err("failed to mmap file\n");
1872 err = -errno;
1873 goto out_err;
1874 }
Thomas Gleixnerfe174202010-11-30 17:49:49 +00001875 mmaps[map_idx] = buf;
1876 map_idx = (map_idx + 1) & (ARRAY_SIZE(mmaps) - 1);
Thomas Gleixnerd6513282010-11-30 17:49:44 +00001877 file_pos = file_offset + head;
Adrian Hunter919d86d2014-07-14 13:02:51 +03001878 if (session->one_mmap) {
1879 session->one_mmap_addr = buf;
1880 session->one_mmap_offset = file_offset;
1881 }
Arnaldo Carvalho de Melo06aae5902009-12-27 21:36:59 -02001882
1883more:
Frederic Weisbecker998bedc2011-05-23 13:06:28 +02001884 event = fetch_mmaped_event(session, head, mmap_size, buf);
1885 if (!event) {
Thomas Gleixnerfe174202010-11-30 17:49:49 +00001886 if (mmaps[map_idx]) {
1887 munmap(mmaps[map_idx], mmap_size);
1888 mmaps[map_idx] = NULL;
1889 }
Arnaldo Carvalho de Melo06aae5902009-12-27 21:36:59 -02001890
Thomas Gleixner0331ee02010-11-30 17:49:38 +00001891 page_offset = page_size * (head / page_size);
1892 file_offset += page_offset;
1893 head -= page_offset;
Arnaldo Carvalho de Melo06aae5902009-12-27 21:36:59 -02001894 goto remap;
1895 }
1896
1897 size = event->header.size;
1898
Adrian Hunter27389d72013-07-04 16:20:27 +03001899 if (size < sizeof(struct perf_event_header) ||
Arnaldo Carvalho de Melob7b61cb2015-03-03 11:58:45 -03001900 (skip = perf_session__process_event(session, event, file_pos)) < 0) {
Jiri Olsa9389a462012-04-16 20:42:51 +02001901 pr_err("%#" PRIx64 " [%#x]: failed to process type: %d\n",
1902 file_offset + head, event->header.size,
1903 event->header.type);
1904 err = -EINVAL;
1905 goto out_err;
Arnaldo Carvalho de Melo06aae5902009-12-27 21:36:59 -02001906 }
1907
Adrian Hunter6f917c72014-07-23 22:19:57 +03001908 if (skip)
1909 size += skip;
1910
Arnaldo Carvalho de Melo06aae5902009-12-27 21:36:59 -02001911 head += size;
Thomas Gleixnerd6513282010-11-30 17:49:44 +00001912 file_pos += size;
Arnaldo Carvalho de Melo06aae5902009-12-27 21:36:59 -02001913
Arnaldo Carvalho de Melo4d3001f2013-10-23 15:40:38 -03001914 ui_progress__update(&prog, size);
Thomas Gleixner55b446292010-11-30 17:49:46 +00001915
Arnaldo Carvalho de Melo33e940a2013-09-17 16:34:28 -03001916 if (session_done())
Adrian Hunter8c16b642013-10-18 15:29:02 +03001917 goto out;
Arnaldo Carvalho de Melo33e940a2013-09-17 16:34:28 -03001918
Thomas Gleixnerd6513282010-11-30 17:49:44 +00001919 if (file_pos < file_size)
Arnaldo Carvalho de Melo06aae5902009-12-27 21:36:59 -02001920 goto more;
Thomas Gleixnerd6513282010-11-30 17:49:44 +00001921
Adrian Hunter8c16b642013-10-18 15:29:02 +03001922out:
Frederic Weisbeckerc61e52e2010-04-24 00:04:12 +02001923 /* do the final flush for ordered samples */
Arnaldo Carvalho de Melob7b61cb2015-03-03 11:58:45 -03001924 err = ordered_events__flush(oe, OE_FLUSH__FINAL);
Adrian Hunterc4468702015-04-09 18:53:48 +03001925 if (err)
1926 goto out_err;
1927 err = auxtrace__flush_events(session, tool);
Adrian Huntera5499b32015-05-29 16:33:30 +03001928 if (err)
1929 goto out_err;
1930 err = perf_session__flush_thread_stacks(session);
Arnaldo Carvalho de Melo06aae5902009-12-27 21:36:59 -02001931out_err:
Namhyung Kima5580f32012-11-13 22:30:34 +09001932 ui_progress__finish();
Jiri Olsa075ca1e2018-01-07 17:03:54 +01001933 if (!tool->no_warn)
1934 perf_session__warn_about_errors(session);
Wang Nanb26dc732016-04-13 08:21:04 +00001935 /*
1936 * We may switching perf.data output, make ordered_events
1937 * reusable.
1938 */
1939 ordered_events__reinit(&session->ordered_events);
Adrian Hunterc4468702015-04-09 18:53:48 +03001940 auxtrace__free_events(session);
Adrian Hunter919d86d2014-07-14 13:02:51 +03001941 session->one_mmap = false;
Arnaldo Carvalho de Melo06aae5902009-12-27 21:36:59 -02001942 return err;
1943}
Arnaldo Carvalho de Melo27295592009-12-27 21:37:01 -02001944
Arnaldo Carvalho de Melob7b61cb2015-03-03 11:58:45 -03001945int perf_session__process_events(struct perf_session *session)
Arnaldo Carvalho de Melo6122e4e2010-02-03 16:52:05 -02001946{
Jiri Olsa8ceb41d2017-01-23 22:07:59 +01001947 u64 size = perf_data__size(session->data);
Arnaldo Carvalho de Melo6122e4e2010-02-03 16:52:05 -02001948 int err;
1949
Masami Hiramatsu9d8b1722015-12-09 11:11:23 +09001950 if (perf_session__register_idle_thread(session) < 0)
Arnaldo Carvalho de Melo6122e4e2010-02-03 16:52:05 -02001951 return -ENOMEM;
1952
Jiri Olsa8ceb41d2017-01-23 22:07:59 +01001953 if (!perf_data__is_pipe(session->data))
Arnaldo Carvalho de Melo316c7132013-11-05 15:32:36 -03001954 err = __perf_session__process_events(session,
1955 session->header.data_offset,
Arnaldo Carvalho de Melob7b61cb2015-03-03 11:58:45 -03001956 session->header.data_size, size);
Tom Zanussi8dc58102010-04-01 23:59:15 -05001957 else
Arnaldo Carvalho de Melob7b61cb2015-03-03 11:58:45 -03001958 err = __perf_session__process_pipe_events(session);
Dave Martin88ca8952010-07-27 11:46:12 -03001959
Arnaldo Carvalho de Melo6122e4e2010-02-03 16:52:05 -02001960 return err;
1961}
1962
Arnaldo Carvalho de Melo7f3be652012-08-01 19:15:52 -03001963bool perf_session__has_traces(struct perf_session *session, const char *msg)
Arnaldo Carvalho de Melo27295592009-12-27 21:37:01 -02001964{
David Ahern93ea01c292013-08-07 22:50:58 -04001965 struct perf_evsel *evsel;
1966
Arnaldo Carvalho de Meloe5cadb92016-06-23 11:26:15 -03001967 evlist__for_each_entry(session->evlist, evsel) {
David Ahern93ea01c292013-08-07 22:50:58 -04001968 if (evsel->attr.type == PERF_TYPE_TRACEPOINT)
1969 return true;
Arnaldo Carvalho de Melo27295592009-12-27 21:37:01 -02001970 }
1971
David Ahern93ea01c292013-08-07 22:50:58 -04001972 pr_err("No trace sample to read. Did you call 'perf %s'?\n", msg);
1973 return false;
Arnaldo Carvalho de Melo27295592009-12-27 21:37:01 -02001974}
Arnaldo Carvalho de Melo56b03f32010-01-05 16:50:31 -02001975
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -02001976int maps__set_kallsyms_ref_reloc_sym(struct map **maps,
1977 const char *symbol_name, u64 addr)
Arnaldo Carvalho de Melo56b03f32010-01-05 16:50:31 -02001978{
1979 char *bracket;
Arnaldo Carvalho de Meloa0b2f5a2017-02-14 16:19:56 -03001980 int i;
Zhang, Yanmina1645ce2010-04-19 13:32:50 +08001981 struct ref_reloc_sym *ref;
Arnaldo Carvalho de Melo56b03f32010-01-05 16:50:31 -02001982
Zhang, Yanmina1645ce2010-04-19 13:32:50 +08001983 ref = zalloc(sizeof(struct ref_reloc_sym));
1984 if (ref == NULL)
Arnaldo Carvalho de Melo56b03f32010-01-05 16:50:31 -02001985 return -ENOMEM;
1986
Zhang, Yanmina1645ce2010-04-19 13:32:50 +08001987 ref->name = strdup(symbol_name);
1988 if (ref->name == NULL) {
1989 free(ref);
1990 return -ENOMEM;
1991 }
1992
1993 bracket = strchr(ref->name, ']');
Arnaldo Carvalho de Melo56b03f32010-01-05 16:50:31 -02001994 if (bracket)
1995 *bracket = '\0';
1996
Zhang, Yanmina1645ce2010-04-19 13:32:50 +08001997 ref->addr = addr;
Arnaldo Carvalho de Melo9de89fe2010-02-03 16:52:00 -02001998
1999 for (i = 0; i < MAP__NR_TYPES; ++i) {
Zhang, Yanmina1645ce2010-04-19 13:32:50 +08002000 struct kmap *kmap = map__kmap(maps[i]);
Wang Nanba927322015-04-07 08:22:45 +00002001
2002 if (!kmap)
2003 continue;
Zhang, Yanmina1645ce2010-04-19 13:32:50 +08002004 kmap->ref_reloc_sym = ref;
Arnaldo Carvalho de Melo9de89fe2010-02-03 16:52:00 -02002005 }
2006
Arnaldo Carvalho de Melo56b03f32010-01-05 16:50:31 -02002007 return 0;
2008}
Arnaldo Carvalho de Melo1f626bc2010-05-09 19:57:08 -03002009
Arnaldo Carvalho de Melo316c7132013-11-05 15:32:36 -03002010size_t perf_session__fprintf_dsos(struct perf_session *session, FILE *fp)
Arnaldo Carvalho de Melo1f626bc2010-05-09 19:57:08 -03002011{
Arnaldo Carvalho de Melo316c7132013-11-05 15:32:36 -03002012 return machines__fprintf_dsos(&session->machines, fp);
Arnaldo Carvalho de Melo1f626bc2010-05-09 19:57:08 -03002013}
Arnaldo Carvalho de Melof8690972010-05-19 13:41:23 -03002014
Arnaldo Carvalho de Melo316c7132013-11-05 15:32:36 -03002015size_t perf_session__fprintf_dsos_buildid(struct perf_session *session, FILE *fp,
Arnaldo Carvalho de Melo417c2ff2012-12-07 09:53:58 -03002016 bool (skip)(struct dso *dso, int parm), int parm)
Arnaldo Carvalho de Melof8690972010-05-19 13:41:23 -03002017{
Arnaldo Carvalho de Melo316c7132013-11-05 15:32:36 -03002018 return machines__fprintf_dsos_buildid(&session->machines, fp, skip, parm);
Arnaldo Carvalho de Melof8690972010-05-19 13:41:23 -03002019}
Arnaldo Carvalho de Meloe248de32011-03-05 21:40:06 -03002020
2021size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp)
2022{
Adrian Hunterc4468702015-04-09 18:53:48 +03002023 size_t ret;
2024 const char *msg = "";
2025
2026 if (perf_header__has_feat(&session->header, HEADER_AUXTRACE))
2027 msg = " (excludes AUX area (e.g. instruction trace) decoded / synthesized events)";
2028
Adrian Hunterfe692ac2015-06-23 10:52:49 +03002029 ret = fprintf(fp, "\nAggregated stats:%s\n", msg);
Arnaldo Carvalho de Meloe248de32011-03-05 21:40:06 -03002030
Arnaldo Carvalho de Melo75be9892015-02-14 14:50:11 -03002031 ret += events_stats__fprintf(&session->evlist->stats, fp);
Arnaldo Carvalho de Meloe248de32011-03-05 21:40:06 -03002032 return ret;
2033}
David Ahernc0230b22011-03-09 22:23:27 -07002034
Arnaldo Carvalho de Melob424eba2011-11-09 13:24:25 -02002035size_t perf_session__fprintf(struct perf_session *session, FILE *fp)
2036{
2037 /*
2038 * FIXME: Here we have to actually print all the machines in this
2039 * session, not just the host...
2040 */
Arnaldo Carvalho de Melo876650e62012-12-18 19:15:48 -03002041 return machine__fprintf(&session->machines.host, fp);
Arnaldo Carvalho de Melob424eba2011-11-09 13:24:25 -02002042}
2043
David Ahern9cbdb702011-04-06 21:54:20 -06002044struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session,
2045 unsigned int type)
2046{
2047 struct perf_evsel *pos;
2048
Arnaldo Carvalho de Meloe5cadb92016-06-23 11:26:15 -03002049 evlist__for_each_entry(session->evlist, pos) {
David Ahern9cbdb702011-04-06 21:54:20 -06002050 if (pos->attr.type == type)
2051 return pos;
2052 }
2053 return NULL;
2054}
2055
Anton Blanchard5d67be92011-07-04 21:57:50 +10002056int perf_session__cpu_bitmap(struct perf_session *session,
2057 const char *cpu_list, unsigned long *cpu_bitmap)
2058{
Stanislav Fomichev8bac41c2014-01-20 15:39:39 +04002059 int i, err = -1;
Anton Blanchard5d67be92011-07-04 21:57:50 +10002060 struct cpu_map *map;
2061
2062 for (i = 0; i < PERF_TYPE_MAX; ++i) {
2063 struct perf_evsel *evsel;
2064
2065 evsel = perf_session__find_first_evtype(session, i);
2066 if (!evsel)
2067 continue;
2068
2069 if (!(evsel->attr.sample_type & PERF_SAMPLE_CPU)) {
2070 pr_err("File does not contain CPU events. "
Adrian Hunter30795462017-05-26 11:17:19 +03002071 "Remove -C option to proceed.\n");
Anton Blanchard5d67be92011-07-04 21:57:50 +10002072 return -1;
2073 }
2074 }
2075
2076 map = cpu_map__new(cpu_list);
David Ahern47fbe532011-11-13 10:45:27 -07002077 if (map == NULL) {
2078 pr_err("Invalid cpu_list\n");
2079 return -1;
2080 }
Anton Blanchard5d67be92011-07-04 21:57:50 +10002081
2082 for (i = 0; i < map->nr; i++) {
2083 int cpu = map->map[i];
2084
2085 if (cpu >= MAX_NR_CPUS) {
2086 pr_err("Requested CPU %d too large. "
2087 "Consider raising MAX_NR_CPUS\n", cpu);
Stanislav Fomichev8bac41c2014-01-20 15:39:39 +04002088 goto out_delete_map;
Anton Blanchard5d67be92011-07-04 21:57:50 +10002089 }
2090
2091 set_bit(cpu, cpu_bitmap);
2092 }
2093
Stanislav Fomichev8bac41c2014-01-20 15:39:39 +04002094 err = 0;
2095
2096out_delete_map:
Jiri Olsaf30a79b2015-06-23 00:36:04 +02002097 cpu_map__put(map);
Stanislav Fomichev8bac41c2014-01-20 15:39:39 +04002098 return err;
Anton Blanchard5d67be92011-07-04 21:57:50 +10002099}
Stephane Eranianfbe96f22011-09-30 15:40:40 +02002100
2101void perf_session__fprintf_info(struct perf_session *session, FILE *fp,
2102 bool full)
2103{
Stephane Eranianfbe96f22011-09-30 15:40:40 +02002104 if (session == NULL || fp == NULL)
2105 return;
2106
Stephane Eranianfbe96f22011-09-30 15:40:40 +02002107 fprintf(fp, "# ========\n");
Stephane Eranianfbe96f22011-09-30 15:40:40 +02002108 perf_header__fprintf_info(session, fp, full);
2109 fprintf(fp, "# ========\n#\n");
2110}
Arnaldo Carvalho de Meloda378962012-06-27 13:08:42 -03002111
2112
2113int __perf_session__set_tracepoints_handlers(struct perf_session *session,
2114 const struct perf_evsel_str_handler *assocs,
2115 size_t nr_assocs)
2116{
Arnaldo Carvalho de Meloda378962012-06-27 13:08:42 -03002117 struct perf_evsel *evsel;
Arnaldo Carvalho de Meloda378962012-06-27 13:08:42 -03002118 size_t i;
2119 int err;
2120
2121 for (i = 0; i < nr_assocs; i++) {
Arnaldo Carvalho de Meloccf53ea2013-09-06 15:19:01 -03002122 /*
2123 * Adding a handler for an event not in the session,
2124 * just ignore it.
2125 */
2126 evsel = perf_evlist__find_tracepoint_by_name(session->evlist, assocs[i].name);
Arnaldo Carvalho de Meloda378962012-06-27 13:08:42 -03002127 if (evsel == NULL)
Arnaldo Carvalho de Meloccf53ea2013-09-06 15:19:01 -03002128 continue;
Arnaldo Carvalho de Meloda378962012-06-27 13:08:42 -03002129
2130 err = -EEXIST;
Arnaldo Carvalho de Melo744a9712013-11-06 10:17:38 -03002131 if (evsel->handler != NULL)
Arnaldo Carvalho de Meloccf53ea2013-09-06 15:19:01 -03002132 goto out;
Arnaldo Carvalho de Melo744a9712013-11-06 10:17:38 -03002133 evsel->handler = assocs[i].handler;
Arnaldo Carvalho de Meloda378962012-06-27 13:08:42 -03002134 }
2135
2136 err = 0;
2137out:
2138 return err;
Arnaldo Carvalho de Meloda378962012-06-27 13:08:42 -03002139}
Adrian Hunter3c659ee2014-10-27 15:49:22 +02002140
2141int perf_event__process_id_index(struct perf_tool *tool __maybe_unused,
2142 union perf_event *event,
2143 struct perf_session *session)
2144{
2145 struct perf_evlist *evlist = session->evlist;
2146 struct id_index_event *ie = &event->id_index;
2147 size_t i, nr, max_nr;
2148
2149 max_nr = (ie->header.size - sizeof(struct id_index_event)) /
2150 sizeof(struct id_index_entry);
2151 nr = ie->nr;
2152 if (nr > max_nr)
2153 return -EINVAL;
2154
2155 if (dump_trace)
2156 fprintf(stdout, " nr: %zu\n", nr);
2157
2158 for (i = 0; i < nr; i++) {
2159 struct id_index_entry *e = &ie->entries[i];
2160 struct perf_sample_id *sid;
2161
2162 if (dump_trace) {
2163 fprintf(stdout, " ... id: %"PRIu64, e->id);
2164 fprintf(stdout, " idx: %"PRIu64, e->idx);
2165 fprintf(stdout, " cpu: %"PRId64, e->cpu);
2166 fprintf(stdout, " tid: %"PRId64"\n", e->tid);
2167 }
2168
2169 sid = perf_evlist__id2sid(evlist, e->id);
2170 if (!sid)
2171 return -ENOENT;
2172 sid->idx = e->idx;
2173 sid->cpu = e->cpu;
2174 sid->tid = e->tid;
2175 }
2176 return 0;
2177}
2178
2179int perf_event__synthesize_id_index(struct perf_tool *tool,
2180 perf_event__handler_t process,
2181 struct perf_evlist *evlist,
2182 struct machine *machine)
2183{
2184 union perf_event *ev;
2185 struct perf_evsel *evsel;
2186 size_t nr = 0, i = 0, sz, max_nr, n;
2187 int err;
2188
2189 pr_debug2("Synthesizing id index\n");
2190
2191 max_nr = (UINT16_MAX - sizeof(struct id_index_event)) /
2192 sizeof(struct id_index_entry);
2193
Arnaldo Carvalho de Meloe5cadb92016-06-23 11:26:15 -03002194 evlist__for_each_entry(evlist, evsel)
Adrian Hunter3c659ee2014-10-27 15:49:22 +02002195 nr += evsel->ids;
2196
2197 n = nr > max_nr ? max_nr : nr;
2198 sz = sizeof(struct id_index_event) + n * sizeof(struct id_index_entry);
2199 ev = zalloc(sz);
2200 if (!ev)
2201 return -ENOMEM;
2202
2203 ev->id_index.header.type = PERF_RECORD_ID_INDEX;
2204 ev->id_index.header.size = sz;
2205 ev->id_index.nr = n;
2206
Arnaldo Carvalho de Meloe5cadb92016-06-23 11:26:15 -03002207 evlist__for_each_entry(evlist, evsel) {
Adrian Hunter3c659ee2014-10-27 15:49:22 +02002208 u32 j;
2209
2210 for (j = 0; j < evsel->ids; j++) {
2211 struct id_index_entry *e;
2212 struct perf_sample_id *sid;
2213
2214 if (i >= n) {
2215 err = process(tool, ev, NULL, machine);
2216 if (err)
2217 goto out_err;
2218 nr -= n;
2219 i = 0;
2220 }
2221
2222 e = &ev->id_index.entries[i++];
2223
2224 e->id = evsel->id[j];
2225
2226 sid = perf_evlist__id2sid(evlist, e->id);
2227 if (!sid) {
2228 free(ev);
2229 return -ENOENT;
2230 }
2231
2232 e->idx = sid->idx;
2233 e->cpu = sid->cpu;
2234 e->tid = sid->tid;
2235 }
2236 }
2237
2238 sz = sizeof(struct id_index_event) + nr * sizeof(struct id_index_entry);
2239 ev->id_index.header.size = sz;
2240 ev->id_index.nr = nr;
2241
2242 err = process(tool, ev, NULL, machine);
2243out_err:
2244 free(ev);
2245
2246 return err;
2247}