Commit | Line | Data |
---|---|---|
94c744b6 | 1 | #include <linux/kernel.h> |
4e319027 | 2 | #include <traceevent/event-parse.h> |
94c744b6 | 3 | |
ba21594c | 4 | #include <byteswap.h> |
94c744b6 ACM |
5 | #include <unistd.h> |
6 | #include <sys/types.h> | |
a41794cd | 7 | #include <sys/mman.h> |
94c744b6 | 8 | |
e248de33 ACM |
9 | #include "evlist.h" |
10 | #include "evsel.h" | |
94c744b6 | 11 | #include "session.h" |
45694aa7 | 12 | #include "tool.h" |
a328626b | 13 | #include "sort.h" |
94c744b6 | 14 | #include "util.h" |
5d67be97 | 15 | #include "cpumap.h" |
0f6a3015 | 16 | #include "perf_regs.h" |
b0a45203 | 17 | #include "asm/bug.h" |
94c744b6 | 18 | |
316c7136 | 19 | static int perf_session__open(struct perf_session *session) |
94c744b6 | 20 | { |
316c7136 | 21 | struct perf_data_file *file = session->file; |
8dc58101 | 22 | |
316c7136 | 23 | if (perf_session__read_header(session) < 0) { |
69996df4 | 24 | pr_err("incompatible file format (rerun with -v to learn more)"); |
6a4d98d7 | 25 | return -1; |
94c744b6 ACM |
26 | } |
27 | ||
cc9784bd JO |
28 | if (perf_data_file__is_pipe(file)) |
29 | return 0; | |
30 | ||
316c7136 | 31 | if (!perf_evlist__valid_sample_type(session->evlist)) { |
c2a70653 | 32 | pr_err("non matching sample_type"); |
6a4d98d7 | 33 | return -1; |
c2a70653 ACM |
34 | } |
35 | ||
316c7136 | 36 | if (!perf_evlist__valid_sample_id_all(session->evlist)) { |
c2a70653 | 37 | pr_err("non matching sample_id_all"); |
6a4d98d7 | 38 | return -1; |
c2a70653 ACM |
39 | } |
40 | ||
316c7136 | 41 | if (!perf_evlist__valid_read_format(session->evlist)) { |
9ede473c | 42 | pr_err("non matching read_format"); |
6a4d98d7 | 43 | return -1; |
9ede473c JO |
44 | } |
45 | ||
94c744b6 | 46 | return 0; |
94c744b6 ACM |
47 | } |
48 | ||
7b56cce2 | 49 | void perf_session__set_id_hdr_size(struct perf_session *session) |
9c90a61c | 50 | { |
7b56cce2 ACM |
51 | u16 id_hdr_size = perf_evlist__id_hdr_size(session->evlist); |
52 | ||
7b56cce2 | 53 | machines__set_id_hdr_size(&session->machines, id_hdr_size); |
9c90a61c ACM |
54 | } |
55 | ||
316c7136 | 56 | int perf_session__create_kernel_maps(struct perf_session *session) |
a1645ce1 | 57 | { |
316c7136 | 58 | int ret = machine__create_kernel_maps(&session->machines.host); |
a1645ce1 | 59 | |
a1645ce1 | 60 | if (ret >= 0) |
316c7136 | 61 | ret = machines__create_guest_kernel_maps(&session->machines); |
a1645ce1 ZY |
62 | return ret; |
63 | } | |
64 | ||
316c7136 | 65 | static void perf_session__destroy_kernel_maps(struct perf_session *session) |
076c6e45 | 66 | { |
316c7136 | 67 | machines__destroy_kernel_maps(&session->machines); |
076c6e45 ACM |
68 | } |
69 | ||
cfe1c414 AH |
70 | static bool perf_session__has_comm_exec(struct perf_session *session) |
71 | { | |
72 | struct perf_evsel *evsel; | |
73 | ||
74 | evlist__for_each(session->evlist, evsel) { | |
75 | if (evsel->attr.comm_exec) | |
76 | return true; | |
77 | } | |
78 | ||
79 | return false; | |
80 | } | |
81 | ||
82 | static void perf_session__set_comm_exec(struct perf_session *session) | |
83 | { | |
84 | bool comm_exec = perf_session__has_comm_exec(session); | |
85 | ||
86 | machines__set_comm_exec(&session->machines, comm_exec); | |
87 | } | |
88 | ||
f5fc1412 JO |
89 | struct perf_session *perf_session__new(struct perf_data_file *file, |
90 | bool repipe, struct perf_tool *tool) | |
94c744b6 | 91 | { |
316c7136 | 92 | struct perf_session *session = zalloc(sizeof(*session)); |
efad1415 | 93 | |
316c7136 | 94 | if (!session) |
94c744b6 ACM |
95 | goto out; |
96 | ||
316c7136 | 97 | session->repipe = repipe; |
36522f5c | 98 | ordered_events__init(&session->ordered_events); |
316c7136 | 99 | machines__init(&session->machines); |
94c744b6 | 100 | |
6a4d98d7 JO |
101 | if (file) { |
102 | if (perf_data_file__open(file)) | |
64abebf7 | 103 | goto out_delete; |
6a4d98d7 | 104 | |
316c7136 | 105 | session->file = file; |
6a4d98d7 JO |
106 | |
107 | if (perf_data_file__is_read(file)) { | |
316c7136 | 108 | if (perf_session__open(session) < 0) |
6a4d98d7 JO |
109 | goto out_close; |
110 | ||
316c7136 | 111 | perf_session__set_id_hdr_size(session); |
cfe1c414 | 112 | perf_session__set_comm_exec(session); |
6a4d98d7 JO |
113 | } |
114 | } | |
115 | ||
116 | if (!file || perf_data_file__is_write(file)) { | |
64abebf7 ACM |
117 | /* |
118 | * In O_RDONLY mode this will be performed when reading the | |
8115d60c | 119 | * kernel MMAP event, in perf_event__process_mmap(). |
64abebf7 | 120 | */ |
316c7136 | 121 | if (perf_session__create_kernel_maps(session) < 0) |
a5c2a4c9 | 122 | pr_warning("Cannot read kernel map\n"); |
64abebf7 | 123 | } |
d549c769 | 124 | |
45694aa7 | 125 | if (tool && tool->ordering_requires_timestamps && |
0a8cb85c | 126 | tool->ordered_events && !perf_evlist__sample_id_all(session->evlist)) { |
21ef97f0 | 127 | dump_printf("WARNING: No sample_id_all support, falling back to unordered processing\n"); |
0a8cb85c | 128 | tool->ordered_events = false; |
21ef97f0 IM |
129 | } |
130 | ||
316c7136 | 131 | return session; |
6a4d98d7 JO |
132 | |
133 | out_close: | |
134 | perf_data_file__close(file); | |
135 | out_delete: | |
316c7136 | 136 | perf_session__delete(session); |
6a4d98d7 | 137 | out: |
4aa65636 | 138 | return NULL; |
94c744b6 ACM |
139 | } |
140 | ||
b424eba2 ACM |
141 | static void perf_session__delete_dead_threads(struct perf_session *session) |
142 | { | |
876650e6 | 143 | machine__delete_dead_threads(&session->machines.host); |
b424eba2 ACM |
144 | } |
145 | ||
b424eba2 ACM |
146 | static void perf_session__delete_threads(struct perf_session *session) |
147 | { | |
876650e6 | 148 | machine__delete_threads(&session->machines.host); |
b424eba2 ACM |
149 | } |
150 | ||
03cd2094 NK |
151 | static void perf_session_env__delete(struct perf_session_env *env) |
152 | { | |
74cf249d ACM |
153 | zfree(&env->hostname); |
154 | zfree(&env->os_release); | |
155 | zfree(&env->version); | |
156 | zfree(&env->arch); | |
157 | zfree(&env->cpu_desc); | |
158 | zfree(&env->cpuid); | |
159 | ||
160 | zfree(&env->cmdline); | |
161 | zfree(&env->sibling_cores); | |
162 | zfree(&env->sibling_threads); | |
163 | zfree(&env->numa_nodes); | |
164 | zfree(&env->pmu_mappings); | |
03cd2094 NK |
165 | } |
166 | ||
316c7136 | 167 | void perf_session__delete(struct perf_session *session) |
94c744b6 | 168 | { |
316c7136 ACM |
169 | perf_session__destroy_kernel_maps(session); |
170 | perf_session__delete_dead_threads(session); | |
171 | perf_session__delete_threads(session); | |
172 | perf_session_env__delete(&session->header.env); | |
173 | machines__exit(&session->machines); | |
174 | if (session->file) | |
175 | perf_data_file__close(session->file); | |
176 | free(session); | |
94c744b6 | 177 | } |
a328626b | 178 | |
47c3d109 AH |
179 | static int process_event_synth_tracing_data_stub(struct perf_tool *tool |
180 | __maybe_unused, | |
181 | union perf_event *event | |
1d037ca1 IT |
182 | __maybe_unused, |
183 | struct perf_session *session | |
184 | __maybe_unused) | |
d20deb64 ACM |
185 | { |
186 | dump_printf(": unhandled!\n"); | |
187 | return 0; | |
188 | } | |
189 | ||
47c3d109 AH |
190 | static int process_event_synth_attr_stub(struct perf_tool *tool __maybe_unused, |
191 | union perf_event *event __maybe_unused, | |
1d037ca1 IT |
192 | struct perf_evlist **pevlist |
193 | __maybe_unused) | |
10d0f086 ACM |
194 | { |
195 | dump_printf(": unhandled!\n"); | |
196 | return 0; | |
197 | } | |
198 | ||
1d037ca1 IT |
199 | static int process_event_sample_stub(struct perf_tool *tool __maybe_unused, |
200 | union perf_event *event __maybe_unused, | |
201 | struct perf_sample *sample __maybe_unused, | |
202 | struct perf_evsel *evsel __maybe_unused, | |
203 | struct machine *machine __maybe_unused) | |
9e69c210 ACM |
204 | { |
205 | dump_printf(": unhandled!\n"); | |
206 | return 0; | |
207 | } | |
208 | ||
1d037ca1 IT |
209 | static int process_event_stub(struct perf_tool *tool __maybe_unused, |
210 | union perf_event *event __maybe_unused, | |
211 | struct perf_sample *sample __maybe_unused, | |
212 | struct machine *machine __maybe_unused) | |
06aae590 ACM |
213 | { |
214 | dump_printf(": unhandled!\n"); | |
215 | return 0; | |
216 | } | |
217 | ||
1d037ca1 IT |
218 | static int process_finished_round_stub(struct perf_tool *tool __maybe_unused, |
219 | union perf_event *event __maybe_unused, | |
220 | struct perf_session *perf_session | |
221 | __maybe_unused) | |
743eb868 ACM |
222 | { |
223 | dump_printf(": unhandled!\n"); | |
224 | return 0; | |
225 | } | |
226 | ||
45694aa7 | 227 | static int process_finished_round(struct perf_tool *tool, |
d20deb64 ACM |
228 | union perf_event *event, |
229 | struct perf_session *session); | |
d6b17beb | 230 | |
3c659eed AH |
231 | static int process_id_index_stub(struct perf_tool *tool __maybe_unused, |
232 | union perf_event *event __maybe_unused, | |
233 | struct perf_session *perf_session | |
234 | __maybe_unused) | |
235 | { | |
236 | dump_printf(": unhandled!\n"); | |
237 | return 0; | |
238 | } | |
239 | ||
9c501402 | 240 | void perf_tool__fill_defaults(struct perf_tool *tool) |
06aae590 | 241 | { |
45694aa7 ACM |
242 | if (tool->sample == NULL) |
243 | tool->sample = process_event_sample_stub; | |
244 | if (tool->mmap == NULL) | |
245 | tool->mmap = process_event_stub; | |
6adb0b0a DA |
246 | if (tool->mmap2 == NULL) |
247 | tool->mmap2 = process_event_stub; | |
45694aa7 ACM |
248 | if (tool->comm == NULL) |
249 | tool->comm = process_event_stub; | |
250 | if (tool->fork == NULL) | |
251 | tool->fork = process_event_stub; | |
252 | if (tool->exit == NULL) | |
253 | tool->exit = process_event_stub; | |
254 | if (tool->lost == NULL) | |
255 | tool->lost = perf_event__process_lost; | |
256 | if (tool->read == NULL) | |
257 | tool->read = process_event_sample_stub; | |
258 | if (tool->throttle == NULL) | |
259 | tool->throttle = process_event_stub; | |
260 | if (tool->unthrottle == NULL) | |
261 | tool->unthrottle = process_event_stub; | |
262 | if (tool->attr == NULL) | |
263 | tool->attr = process_event_synth_attr_stub; | |
45694aa7 ACM |
264 | if (tool->tracing_data == NULL) |
265 | tool->tracing_data = process_event_synth_tracing_data_stub; | |
266 | if (tool->build_id == NULL) | |
267 | tool->build_id = process_finished_round_stub; | |
268 | if (tool->finished_round == NULL) { | |
0a8cb85c | 269 | if (tool->ordered_events) |
45694aa7 | 270 | tool->finished_round = process_finished_round; |
d6b17beb | 271 | else |
45694aa7 | 272 | tool->finished_round = process_finished_round_stub; |
d6b17beb | 273 | } |
3c659eed AH |
274 | if (tool->id_index == NULL) |
275 | tool->id_index = process_id_index_stub; | |
06aae590 | 276 | } |
48000a1a | 277 | |
268fb20f JO |
278 | static void swap_sample_id_all(union perf_event *event, void *data) |
279 | { | |
280 | void *end = (void *) event + event->header.size; | |
281 | int size = end - data; | |
282 | ||
283 | BUG_ON(size % sizeof(u64)); | |
284 | mem_bswap_64(data, size); | |
285 | } | |
286 | ||
287 | static void perf_event__all64_swap(union perf_event *event, | |
1d037ca1 | 288 | bool sample_id_all __maybe_unused) |
ba21594c | 289 | { |
8115d60c ACM |
290 | struct perf_event_header *hdr = &event->header; |
291 | mem_bswap_64(hdr + 1, event->header.size - sizeof(*hdr)); | |
ba21594c ACM |
292 | } |
293 | ||
268fb20f | 294 | static void perf_event__comm_swap(union perf_event *event, bool sample_id_all) |
ba21594c | 295 | { |
8115d60c ACM |
296 | event->comm.pid = bswap_32(event->comm.pid); |
297 | event->comm.tid = bswap_32(event->comm.tid); | |
268fb20f JO |
298 | |
299 | if (sample_id_all) { | |
300 | void *data = &event->comm.comm; | |
301 | ||
9ac3e487 | 302 | data += PERF_ALIGN(strlen(data) + 1, sizeof(u64)); |
268fb20f JO |
303 | swap_sample_id_all(event, data); |
304 | } | |
ba21594c ACM |
305 | } |
306 | ||
268fb20f JO |
307 | static void perf_event__mmap_swap(union perf_event *event, |
308 | bool sample_id_all) | |
ba21594c | 309 | { |
8115d60c ACM |
310 | event->mmap.pid = bswap_32(event->mmap.pid); |
311 | event->mmap.tid = bswap_32(event->mmap.tid); | |
312 | event->mmap.start = bswap_64(event->mmap.start); | |
313 | event->mmap.len = bswap_64(event->mmap.len); | |
314 | event->mmap.pgoff = bswap_64(event->mmap.pgoff); | |
268fb20f JO |
315 | |
316 | if (sample_id_all) { | |
317 | void *data = &event->mmap.filename; | |
318 | ||
9ac3e487 | 319 | data += PERF_ALIGN(strlen(data) + 1, sizeof(u64)); |
268fb20f JO |
320 | swap_sample_id_all(event, data); |
321 | } | |
ba21594c ACM |
322 | } |
323 | ||
5c5e854b SE |
324 | static void perf_event__mmap2_swap(union perf_event *event, |
325 | bool sample_id_all) | |
326 | { | |
327 | event->mmap2.pid = bswap_32(event->mmap2.pid); | |
328 | event->mmap2.tid = bswap_32(event->mmap2.tid); | |
329 | event->mmap2.start = bswap_64(event->mmap2.start); | |
330 | event->mmap2.len = bswap_64(event->mmap2.len); | |
331 | event->mmap2.pgoff = bswap_64(event->mmap2.pgoff); | |
332 | event->mmap2.maj = bswap_32(event->mmap2.maj); | |
333 | event->mmap2.min = bswap_32(event->mmap2.min); | |
334 | event->mmap2.ino = bswap_64(event->mmap2.ino); | |
335 | ||
336 | if (sample_id_all) { | |
337 | void *data = &event->mmap2.filename; | |
338 | ||
339 | data += PERF_ALIGN(strlen(data) + 1, sizeof(u64)); | |
340 | swap_sample_id_all(event, data); | |
341 | } | |
342 | } | |
268fb20f | 343 | static void perf_event__task_swap(union perf_event *event, bool sample_id_all) |
ba21594c | 344 | { |
8115d60c ACM |
345 | event->fork.pid = bswap_32(event->fork.pid); |
346 | event->fork.tid = bswap_32(event->fork.tid); | |
347 | event->fork.ppid = bswap_32(event->fork.ppid); | |
348 | event->fork.ptid = bswap_32(event->fork.ptid); | |
349 | event->fork.time = bswap_64(event->fork.time); | |
268fb20f JO |
350 | |
351 | if (sample_id_all) | |
352 | swap_sample_id_all(event, &event->fork + 1); | |
ba21594c ACM |
353 | } |
354 | ||
268fb20f | 355 | static void perf_event__read_swap(union perf_event *event, bool sample_id_all) |
ba21594c | 356 | { |
8115d60c ACM |
357 | event->read.pid = bswap_32(event->read.pid); |
358 | event->read.tid = bswap_32(event->read.tid); | |
359 | event->read.value = bswap_64(event->read.value); | |
360 | event->read.time_enabled = bswap_64(event->read.time_enabled); | |
361 | event->read.time_running = bswap_64(event->read.time_running); | |
362 | event->read.id = bswap_64(event->read.id); | |
268fb20f JO |
363 | |
364 | if (sample_id_all) | |
365 | swap_sample_id_all(event, &event->read + 1); | |
ba21594c ACM |
366 | } |
367 | ||
dd96c46b JO |
368 | static void perf_event__throttle_swap(union perf_event *event, |
369 | bool sample_id_all) | |
370 | { | |
371 | event->throttle.time = bswap_64(event->throttle.time); | |
372 | event->throttle.id = bswap_64(event->throttle.id); | |
373 | event->throttle.stream_id = bswap_64(event->throttle.stream_id); | |
374 | ||
375 | if (sample_id_all) | |
376 | swap_sample_id_all(event, &event->throttle + 1); | |
377 | } | |
378 | ||
e108c66e JO |
379 | static u8 revbyte(u8 b) |
380 | { | |
381 | int rev = (b >> 4) | ((b & 0xf) << 4); | |
382 | rev = ((rev & 0xcc) >> 2) | ((rev & 0x33) << 2); | |
383 | rev = ((rev & 0xaa) >> 1) | ((rev & 0x55) << 1); | |
384 | return (u8) rev; | |
385 | } | |
386 | ||
387 | /* | |
388 | * XXX this is hack in attempt to carry flags bitfield | |
389 | * throught endian village. ABI says: | |
390 | * | |
391 | * Bit-fields are allocated from right to left (least to most significant) | |
392 | * on little-endian implementations and from left to right (most to least | |
393 | * significant) on big-endian implementations. | |
394 | * | |
395 | * The above seems to be byte specific, so we need to reverse each | |
396 | * byte of the bitfield. 'Internet' also says this might be implementation | |
397 | * specific and we probably need proper fix and carry perf_event_attr | |
398 | * bitfield flags in separate data file FEAT_ section. Thought this seems | |
399 | * to work for now. | |
400 | */ | |
401 | static void swap_bitfield(u8 *p, unsigned len) | |
402 | { | |
403 | unsigned i; | |
404 | ||
405 | for (i = 0; i < len; i++) { | |
406 | *p = revbyte(*p); | |
407 | p++; | |
408 | } | |
409 | } | |
410 | ||
eda3913b DA |
411 | /* exported for swapping attributes in file header */ |
412 | void perf_event__attr_swap(struct perf_event_attr *attr) | |
413 | { | |
414 | attr->type = bswap_32(attr->type); | |
415 | attr->size = bswap_32(attr->size); | |
416 | attr->config = bswap_64(attr->config); | |
417 | attr->sample_period = bswap_64(attr->sample_period); | |
418 | attr->sample_type = bswap_64(attr->sample_type); | |
419 | attr->read_format = bswap_64(attr->read_format); | |
420 | attr->wakeup_events = bswap_32(attr->wakeup_events); | |
421 | attr->bp_type = bswap_32(attr->bp_type); | |
422 | attr->bp_addr = bswap_64(attr->bp_addr); | |
423 | attr->bp_len = bswap_64(attr->bp_len); | |
7db59528 AH |
424 | attr->branch_sample_type = bswap_64(attr->branch_sample_type); |
425 | attr->sample_regs_user = bswap_64(attr->sample_regs_user); | |
426 | attr->sample_stack_user = bswap_32(attr->sample_stack_user); | |
e108c66e JO |
427 | |
428 | swap_bitfield((u8 *) (&attr->read_format + 1), sizeof(u64)); | |
eda3913b DA |
429 | } |
430 | ||
268fb20f | 431 | static void perf_event__hdr_attr_swap(union perf_event *event, |
1d037ca1 | 432 | bool sample_id_all __maybe_unused) |
2c46dbb5 TZ |
433 | { |
434 | size_t size; | |
435 | ||
eda3913b | 436 | perf_event__attr_swap(&event->attr.attr); |
2c46dbb5 | 437 | |
8115d60c ACM |
438 | size = event->header.size; |
439 | size -= (void *)&event->attr.id - (void *)event; | |
440 | mem_bswap_64(event->attr.id, size); | |
2c46dbb5 TZ |
441 | } |
442 | ||
268fb20f | 443 | static void perf_event__event_type_swap(union perf_event *event, |
1d037ca1 | 444 | bool sample_id_all __maybe_unused) |
cd19a035 | 445 | { |
8115d60c ACM |
446 | event->event_type.event_type.event_id = |
447 | bswap_64(event->event_type.event_type.event_id); | |
cd19a035 TZ |
448 | } |
449 | ||
268fb20f | 450 | static void perf_event__tracing_data_swap(union perf_event *event, |
1d037ca1 | 451 | bool sample_id_all __maybe_unused) |
9215545e | 452 | { |
8115d60c | 453 | event->tracing_data.size = bswap_32(event->tracing_data.size); |
9215545e TZ |
454 | } |
455 | ||
268fb20f JO |
456 | typedef void (*perf_event__swap_op)(union perf_event *event, |
457 | bool sample_id_all); | |
ba21594c | 458 | |
8115d60c ACM |
459 | static perf_event__swap_op perf_event__swap_ops[] = { |
460 | [PERF_RECORD_MMAP] = perf_event__mmap_swap, | |
5c5e854b | 461 | [PERF_RECORD_MMAP2] = perf_event__mmap2_swap, |
8115d60c ACM |
462 | [PERF_RECORD_COMM] = perf_event__comm_swap, |
463 | [PERF_RECORD_FORK] = perf_event__task_swap, | |
464 | [PERF_RECORD_EXIT] = perf_event__task_swap, | |
465 | [PERF_RECORD_LOST] = perf_event__all64_swap, | |
466 | [PERF_RECORD_READ] = perf_event__read_swap, | |
dd96c46b JO |
467 | [PERF_RECORD_THROTTLE] = perf_event__throttle_swap, |
468 | [PERF_RECORD_UNTHROTTLE] = perf_event__throttle_swap, | |
8115d60c | 469 | [PERF_RECORD_SAMPLE] = perf_event__all64_swap, |
eda3913b | 470 | [PERF_RECORD_HEADER_ATTR] = perf_event__hdr_attr_swap, |
8115d60c ACM |
471 | [PERF_RECORD_HEADER_EVENT_TYPE] = perf_event__event_type_swap, |
472 | [PERF_RECORD_HEADER_TRACING_DATA] = perf_event__tracing_data_swap, | |
473 | [PERF_RECORD_HEADER_BUILD_ID] = NULL, | |
3c659eed | 474 | [PERF_RECORD_ID_INDEX] = perf_event__all64_swap, |
8115d60c | 475 | [PERF_RECORD_HEADER_MAX] = NULL, |
ba21594c ACM |
476 | }; |
477 | ||
d6b17beb FW |
478 | /* |
479 | * When perf record finishes a pass on every buffers, it records this pseudo | |
480 | * event. | |
481 | * We record the max timestamp t found in the pass n. | |
482 | * Assuming these timestamps are monotonic across cpus, we know that if | |
483 | * a buffer still has events with timestamps below t, they will be all | |
484 | * available and then read in the pass n + 1. | |
485 | * Hence when we start to read the pass n + 2, we can safely flush every | |
486 | * events with timestamps below t. | |
487 | * | |
488 | * ============ PASS n ================= | |
489 | * CPU 0 | CPU 1 | |
490 | * | | |
491 | * cnt1 timestamps | cnt2 timestamps | |
492 | * 1 | 2 | |
493 | * 2 | 3 | |
494 | * - | 4 <--- max recorded | |
495 | * | |
496 | * ============ PASS n + 1 ============== | |
497 | * CPU 0 | CPU 1 | |
498 | * | | |
499 | * cnt1 timestamps | cnt2 timestamps | |
500 | * 3 | 5 | |
501 | * 4 | 6 | |
502 | * 5 | 7 <---- max recorded | |
503 | * | |
504 | * Flush every events below timestamp 4 | |
505 | * | |
506 | * ============ PASS n + 2 ============== | |
507 | * CPU 0 | CPU 1 | |
508 | * | | |
509 | * cnt1 timestamps | cnt2 timestamps | |
510 | * 6 | 8 | |
511 | * 7 | 9 | |
512 | * - | 10 | |
513 | * | |
514 | * Flush every events below timestamp 7 | |
515 | * etc... | |
516 | */ | |
45694aa7 | 517 | static int process_finished_round(struct perf_tool *tool, |
1d037ca1 | 518 | union perf_event *event __maybe_unused, |
d20deb64 | 519 | struct perf_session *session) |
d6b17beb | 520 | { |
d8836b5d | 521 | return ordered_events__flush(session, tool, OE_FLUSH__ROUND); |
d6b17beb FW |
522 | } |
523 | ||
e30b88a7 | 524 | int perf_session_queue_event(struct perf_session *s, union perf_event *event, |
d40b4a15 JO |
525 | struct perf_tool *tool, struct perf_sample *sample, |
526 | u64 file_offset) | |
c61e52ee | 527 | { |
37e39aa8 | 528 | struct ordered_events *oe = &s->ordered_events; |
8d50e5b4 | 529 | u64 timestamp = sample->time; |
37e39aa8 | 530 | struct ordered_event *new; |
c61e52ee | 531 | |
79a14c1f | 532 | if (!timestamp || timestamp == ~0ULL) |
cbf41645 TG |
533 | return -ETIME; |
534 | ||
cee3ab9c | 535 | if (timestamp < oe->last_flush) { |
f61ff6c0 | 536 | pr_oe_time(timestamp, "out of order event\n"); |
b0a45203 JO |
537 | pr_oe_time(oe->last_flush, "last flush, last_flush_type %d\n", |
538 | oe->last_flush_type); | |
539 | ||
75be989a | 540 | s->evlist->stats.nr_unordered_events++; |
c61e52ee FW |
541 | } |
542 | ||
54bf53b1 | 543 | new = ordered_events__new(oe, timestamp, event); |
d40b4a15 JO |
544 | if (!new) { |
545 | ordered_events__flush(s, tool, OE_FLUSH__HALF); | |
54bf53b1 | 546 | new = ordered_events__new(oe, timestamp, event); |
d40b4a15 JO |
547 | } |
548 | ||
c64c7e1a JO |
549 | if (!new) |
550 | return -ENOMEM; | |
c61e52ee | 551 | |
e4c2df13 | 552 | new->file_offset = file_offset; |
640c03ce ACM |
553 | return 0; |
554 | } | |
c61e52ee | 555 | |
384b6055 | 556 | static void callchain__lbr_callstack_printf(struct perf_sample *sample) |
640c03ce | 557 | { |
384b6055 KL |
558 | struct ip_callchain *callchain = sample->callchain; |
559 | struct branch_stack *lbr_stack = sample->branch_stack; | |
560 | u64 kernel_callchain_nr = callchain->nr; | |
640c03ce | 561 | unsigned int i; |
c61e52ee | 562 | |
384b6055 KL |
563 | for (i = 0; i < kernel_callchain_nr; i++) { |
564 | if (callchain->ips[i] == PERF_CONTEXT_USER) | |
565 | break; | |
566 | } | |
567 | ||
568 | if ((i != kernel_callchain_nr) && lbr_stack->nr) { | |
569 | u64 total_nr; | |
570 | /* | |
571 | * LBR callstack can only get user call chain, | |
572 | * i is kernel call chain number, | |
573 | * 1 is PERF_CONTEXT_USER. | |
574 | * | |
575 | * The user call chain is stored in LBR registers. | |
576 | * LBR are pair registers. The caller is stored | |
577 | * in "from" register, while the callee is stored | |
578 | * in "to" register. | |
579 | * For example, there is a call stack | |
580 | * "A"->"B"->"C"->"D". | |
581 | * The LBR registers will recorde like | |
582 | * "C"->"D", "B"->"C", "A"->"B". | |
583 | * So only the first "to" register and all "from" | |
584 | * registers are needed to construct the whole stack. | |
585 | */ | |
586 | total_nr = i + 1 + lbr_stack->nr + 1; | |
587 | kernel_callchain_nr = i + 1; | |
588 | ||
589 | printf("... LBR call chain: nr:%" PRIu64 "\n", total_nr); | |
590 | ||
591 | for (i = 0; i < kernel_callchain_nr; i++) | |
592 | printf("..... %2d: %016" PRIx64 "\n", | |
593 | i, callchain->ips[i]); | |
594 | ||
595 | printf("..... %2d: %016" PRIx64 "\n", | |
596 | (int)(kernel_callchain_nr), lbr_stack->entries[0].to); | |
597 | for (i = 0; i < lbr_stack->nr; i++) | |
598 | printf("..... %2d: %016" PRIx64 "\n", | |
599 | (int)(i + kernel_callchain_nr + 1), lbr_stack->entries[i].from); | |
600 | } | |
601 | } | |
602 | ||
603 | static void callchain__printf(struct perf_evsel *evsel, | |
604 | struct perf_sample *sample) | |
605 | { | |
606 | unsigned int i; | |
607 | struct ip_callchain *callchain = sample->callchain; | |
608 | ||
609 | if (has_branch_callstack(evsel)) | |
610 | callchain__lbr_callstack_printf(sample); | |
611 | ||
612 | printf("... FP chain: nr:%" PRIu64 "\n", callchain->nr); | |
640c03ce | 613 | |
384b6055 | 614 | for (i = 0; i < callchain->nr; i++) |
9486aa38 | 615 | printf("..... %2d: %016" PRIx64 "\n", |
384b6055 | 616 | i, callchain->ips[i]); |
c61e52ee FW |
617 | } |
618 | ||
b5387528 RAV |
619 | static void branch_stack__printf(struct perf_sample *sample) |
620 | { | |
621 | uint64_t i; | |
622 | ||
623 | printf("... branch stack: nr:%" PRIu64 "\n", sample->branch_stack->nr); | |
624 | ||
625 | for (i = 0; i < sample->branch_stack->nr; i++) | |
626 | printf("..... %2"PRIu64": %016" PRIx64 " -> %016" PRIx64 "\n", | |
627 | i, sample->branch_stack->entries[i].from, | |
628 | sample->branch_stack->entries[i].to); | |
629 | } | |
630 | ||
0f6a3015 JO |
631 | static void regs_dump__printf(u64 mask, u64 *regs) |
632 | { | |
633 | unsigned rid, i = 0; | |
634 | ||
635 | for_each_set_bit(rid, (unsigned long *) &mask, sizeof(mask) * 8) { | |
636 | u64 val = regs[i++]; | |
637 | ||
638 | printf(".... %-5s 0x%" PRIx64 "\n", | |
639 | perf_reg_name(rid), val); | |
640 | } | |
641 | } | |
642 | ||
6a21c0b5 SE |
643 | static const char *regs_abi[] = { |
644 | [PERF_SAMPLE_REGS_ABI_NONE] = "none", | |
645 | [PERF_SAMPLE_REGS_ABI_32] = "32-bit", | |
646 | [PERF_SAMPLE_REGS_ABI_64] = "64-bit", | |
647 | }; | |
648 | ||
649 | static inline const char *regs_dump_abi(struct regs_dump *d) | |
650 | { | |
651 | if (d->abi > PERF_SAMPLE_REGS_ABI_64) | |
652 | return "unknown"; | |
653 | ||
654 | return regs_abi[d->abi]; | |
655 | } | |
656 | ||
657 | static void regs__printf(const char *type, struct regs_dump *regs) | |
658 | { | |
659 | u64 mask = regs->mask; | |
660 | ||
661 | printf("... %s regs: mask 0x%" PRIx64 " ABI %s\n", | |
662 | type, | |
663 | mask, | |
664 | regs_dump_abi(regs)); | |
665 | ||
666 | regs_dump__printf(mask, regs->regs); | |
667 | } | |
668 | ||
352ea45a | 669 | static void regs_user__printf(struct perf_sample *sample) |
0f6a3015 JO |
670 | { |
671 | struct regs_dump *user_regs = &sample->user_regs; | |
672 | ||
6a21c0b5 SE |
673 | if (user_regs->regs) |
674 | regs__printf("user", user_regs); | |
675 | } | |
676 | ||
677 | static void regs_intr__printf(struct perf_sample *sample) | |
678 | { | |
679 | struct regs_dump *intr_regs = &sample->intr_regs; | |
680 | ||
681 | if (intr_regs->regs) | |
682 | regs__printf("intr", intr_regs); | |
0f6a3015 JO |
683 | } |
684 | ||
685 | static void stack_user__printf(struct stack_dump *dump) | |
686 | { | |
687 | printf("... ustack: size %" PRIu64 ", offset 0x%x\n", | |
688 | dump->size, dump->offset); | |
689 | } | |
690 | ||
9c90a61c | 691 | static void perf_session__print_tstamp(struct perf_session *session, |
8115d60c | 692 | union perf_event *event, |
8d50e5b4 | 693 | struct perf_sample *sample) |
9c90a61c | 694 | { |
75562573 | 695 | u64 sample_type = __perf_evlist__combined_sample_type(session->evlist); |
7f3be652 | 696 | |
9c90a61c | 697 | if (event->header.type != PERF_RECORD_SAMPLE && |
5e562474 | 698 | !perf_evlist__sample_id_all(session->evlist)) { |
9c90a61c ACM |
699 | fputs("-1 -1 ", stdout); |
700 | return; | |
701 | } | |
702 | ||
7f3be652 | 703 | if ((sample_type & PERF_SAMPLE_CPU)) |
9c90a61c ACM |
704 | printf("%u ", sample->cpu); |
705 | ||
7f3be652 | 706 | if (sample_type & PERF_SAMPLE_TIME) |
9486aa38 | 707 | printf("%" PRIu64 " ", sample->time); |
9c90a61c ACM |
708 | } |
709 | ||
9ede473c JO |
710 | static void sample_read__printf(struct perf_sample *sample, u64 read_format) |
711 | { | |
712 | printf("... sample_read:\n"); | |
713 | ||
714 | if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED) | |
715 | printf("...... time enabled %016" PRIx64 "\n", | |
716 | sample->read.time_enabled); | |
717 | ||
718 | if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING) | |
719 | printf("...... time running %016" PRIx64 "\n", | |
720 | sample->read.time_running); | |
721 | ||
722 | if (read_format & PERF_FORMAT_GROUP) { | |
723 | u64 i; | |
724 | ||
725 | printf(".... group nr %" PRIu64 "\n", sample->read.group.nr); | |
726 | ||
727 | for (i = 0; i < sample->read.group.nr; i++) { | |
728 | struct sample_read_value *value; | |
729 | ||
730 | value = &sample->read.group.values[i]; | |
731 | printf("..... id %016" PRIx64 | |
732 | ", value %016" PRIx64 "\n", | |
733 | value->id, value->value); | |
734 | } | |
735 | } else | |
736 | printf("..... id %016" PRIx64 ", value %016" PRIx64 "\n", | |
737 | sample->read.one.id, sample->read.one.value); | |
738 | } | |
739 | ||
8115d60c | 740 | static void dump_event(struct perf_session *session, union perf_event *event, |
8d50e5b4 | 741 | u64 file_offset, struct perf_sample *sample) |
9aefcab0 TG |
742 | { |
743 | if (!dump_trace) | |
744 | return; | |
745 | ||
9486aa38 ACM |
746 | printf("\n%#" PRIx64 " [%#x]: event: %d\n", |
747 | file_offset, event->header.size, event->header.type); | |
9aefcab0 TG |
748 | |
749 | trace_event(event); | |
750 | ||
751 | if (sample) | |
752 | perf_session__print_tstamp(session, event, sample); | |
753 | ||
9486aa38 | 754 | printf("%#" PRIx64 " [%#x]: PERF_RECORD_%s", file_offset, |
8115d60c | 755 | event->header.size, perf_event__name(event->header.type)); |
9aefcab0 TG |
756 | } |
757 | ||
0f6a3015 | 758 | static void dump_sample(struct perf_evsel *evsel, union perf_event *event, |
8d50e5b4 | 759 | struct perf_sample *sample) |
9aefcab0 | 760 | { |
7f3be652 ACM |
761 | u64 sample_type; |
762 | ||
ddbc24b7 ACM |
763 | if (!dump_trace) |
764 | return; | |
765 | ||
0ea590ae | 766 | printf("(IP, 0x%x): %d/%d: %#" PRIx64 " period: %" PRIu64 " addr: %#" PRIx64 "\n", |
9486aa38 | 767 | event->header.misc, sample->pid, sample->tid, sample->ip, |
7cec0922 | 768 | sample->period, sample->addr); |
9aefcab0 | 769 | |
0f6a3015 | 770 | sample_type = evsel->attr.sample_type; |
7f3be652 ACM |
771 | |
772 | if (sample_type & PERF_SAMPLE_CALLCHAIN) | |
384b6055 | 773 | callchain__printf(evsel, sample); |
b5387528 | 774 | |
384b6055 | 775 | if ((sample_type & PERF_SAMPLE_BRANCH_STACK) && !has_branch_callstack(evsel)) |
b5387528 | 776 | branch_stack__printf(sample); |
0f6a3015 JO |
777 | |
778 | if (sample_type & PERF_SAMPLE_REGS_USER) | |
352ea45a | 779 | regs_user__printf(sample); |
0f6a3015 | 780 | |
6a21c0b5 SE |
781 | if (sample_type & PERF_SAMPLE_REGS_INTR) |
782 | regs_intr__printf(sample); | |
783 | ||
0f6a3015 JO |
784 | if (sample_type & PERF_SAMPLE_STACK_USER) |
785 | stack_user__printf(&sample->user_stack); | |
05484298 AK |
786 | |
787 | if (sample_type & PERF_SAMPLE_WEIGHT) | |
788 | printf("... weight: %" PRIu64 "\n", sample->weight); | |
98a3b32c SE |
789 | |
790 | if (sample_type & PERF_SAMPLE_DATA_SRC) | |
791 | printf(" . data_src: 0x%"PRIx64"\n", sample->data_src); | |
9ede473c | 792 | |
475eeab9 AK |
793 | if (sample_type & PERF_SAMPLE_TRANSACTION) |
794 | printf("... transaction: %" PRIx64 "\n", sample->transaction); | |
795 | ||
9ede473c JO |
796 | if (sample_type & PERF_SAMPLE_READ) |
797 | sample_read__printf(sample, evsel->attr.read_format); | |
9aefcab0 TG |
798 | } |
799 | ||
54245fdc | 800 | static struct machine *machines__find_for_cpumode(struct machines *machines, |
ef89325f AH |
801 | union perf_event *event, |
802 | struct perf_sample *sample) | |
743eb868 ACM |
803 | { |
804 | const u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; | |
ad85ace0 | 805 | struct machine *machine; |
743eb868 | 806 | |
7c0f4a41 DA |
807 | if (perf_guest && |
808 | ((cpumode == PERF_RECORD_MISC_GUEST_KERNEL) || | |
809 | (cpumode == PERF_RECORD_MISC_GUEST_USER))) { | |
7fb0a5ee ND |
810 | u32 pid; |
811 | ||
5c5e854b SE |
812 | if (event->header.type == PERF_RECORD_MMAP |
813 | || event->header.type == PERF_RECORD_MMAP2) | |
7fb0a5ee ND |
814 | pid = event->mmap.pid; |
815 | else | |
ef89325f | 816 | pid = sample->pid; |
7fb0a5ee | 817 | |
54245fdc | 818 | machine = machines__find(machines, pid); |
ad85ace0 | 819 | if (!machine) |
54245fdc | 820 | machine = machines__find(machines, DEFAULT_GUEST_KERNEL_ID); |
ad85ace0 | 821 | return machine; |
7fb0a5ee | 822 | } |
743eb868 | 823 | |
54245fdc | 824 | return &machines->host; |
743eb868 ACM |
825 | } |
826 | ||
e4caec0d JO |
827 | static int deliver_sample_value(struct perf_session *session, |
828 | struct perf_tool *tool, | |
829 | union perf_event *event, | |
830 | struct perf_sample *sample, | |
831 | struct sample_read_value *v, | |
832 | struct machine *machine) | |
833 | { | |
834 | struct perf_sample_id *sid; | |
835 | ||
836 | sid = perf_evlist__id2sid(session->evlist, v->id); | |
837 | if (sid) { | |
838 | sample->id = v->id; | |
839 | sample->period = v->value - sid->period; | |
840 | sid->period = v->value; | |
841 | } | |
842 | ||
843 | if (!sid || sid->evsel == NULL) { | |
75be989a | 844 | ++session->evlist->stats.nr_unknown_id; |
e4caec0d JO |
845 | return 0; |
846 | } | |
847 | ||
848 | return tool->sample(tool, event, sample, sid->evsel, machine); | |
849 | } | |
850 | ||
851 | static int deliver_sample_group(struct perf_session *session, | |
852 | struct perf_tool *tool, | |
853 | union perf_event *event, | |
854 | struct perf_sample *sample, | |
855 | struct machine *machine) | |
856 | { | |
857 | int ret = -EINVAL; | |
858 | u64 i; | |
859 | ||
860 | for (i = 0; i < sample->read.group.nr; i++) { | |
861 | ret = deliver_sample_value(session, tool, event, sample, | |
862 | &sample->read.group.values[i], | |
863 | machine); | |
864 | if (ret) | |
865 | break; | |
866 | } | |
867 | ||
868 | return ret; | |
869 | } | |
870 | ||
871 | static int | |
872 | perf_session__deliver_sample(struct perf_session *session, | |
873 | struct perf_tool *tool, | |
874 | union perf_event *event, | |
875 | struct perf_sample *sample, | |
876 | struct perf_evsel *evsel, | |
877 | struct machine *machine) | |
878 | { | |
879 | /* We know evsel != NULL. */ | |
880 | u64 sample_type = evsel->attr.sample_type; | |
881 | u64 read_format = evsel->attr.read_format; | |
882 | ||
883 | /* Standard sample delievery. */ | |
884 | if (!(sample_type & PERF_SAMPLE_READ)) | |
885 | return tool->sample(tool, event, sample, evsel, machine); | |
886 | ||
887 | /* For PERF_SAMPLE_READ we have either single or group mode. */ | |
888 | if (read_format & PERF_FORMAT_GROUP) | |
889 | return deliver_sample_group(session, tool, event, sample, | |
890 | machine); | |
891 | else | |
892 | return deliver_sample_value(session, tool, event, sample, | |
893 | &sample->read.one, machine); | |
894 | } | |
895 | ||
79a30fe4 JO |
896 | int perf_session__deliver_event(struct perf_session *session, |
897 | union perf_event *event, | |
898 | struct perf_sample *sample, | |
899 | struct perf_tool *tool, u64 file_offset) | |
cbf41645 | 900 | { |
9e69c210 | 901 | struct perf_evsel *evsel; |
743eb868 | 902 | struct machine *machine; |
9e69c210 | 903 | |
532e7269 TG |
904 | dump_event(session, event, file_offset, sample); |
905 | ||
7b27509f | 906 | evsel = perf_evlist__id2evsel(session->evlist, sample->id); |
7b27509f | 907 | |
54245fdc | 908 | machine = machines__find_for_cpumode(&session->machines, event, sample); |
743eb868 | 909 | |
cbf41645 TG |
910 | switch (event->header.type) { |
911 | case PERF_RECORD_SAMPLE: | |
0f6a3015 | 912 | dump_sample(evsel, event, sample); |
9e69c210 | 913 | if (evsel == NULL) { |
75be989a | 914 | ++session->evlist->stats.nr_unknown_id; |
6782206b | 915 | return 0; |
9e69c210 | 916 | } |
0c095715 | 917 | if (machine == NULL) { |
75be989a | 918 | ++session->evlist->stats.nr_unprocessable_samples; |
6782206b | 919 | return 0; |
0c095715 | 920 | } |
e4caec0d JO |
921 | return perf_session__deliver_sample(session, tool, event, |
922 | sample, evsel, machine); | |
cbf41645 | 923 | case PERF_RECORD_MMAP: |
45694aa7 | 924 | return tool->mmap(tool, event, sample, machine); |
5c5e854b SE |
925 | case PERF_RECORD_MMAP2: |
926 | return tool->mmap2(tool, event, sample, machine); | |
cbf41645 | 927 | case PERF_RECORD_COMM: |
45694aa7 | 928 | return tool->comm(tool, event, sample, machine); |
cbf41645 | 929 | case PERF_RECORD_FORK: |
45694aa7 | 930 | return tool->fork(tool, event, sample, machine); |
cbf41645 | 931 | case PERF_RECORD_EXIT: |
45694aa7 | 932 | return tool->exit(tool, event, sample, machine); |
cbf41645 | 933 | case PERF_RECORD_LOST: |
45694aa7 | 934 | if (tool->lost == perf_event__process_lost) |
75be989a | 935 | session->evlist->stats.total_lost += event->lost.lost; |
45694aa7 | 936 | return tool->lost(tool, event, sample, machine); |
cbf41645 | 937 | case PERF_RECORD_READ: |
45694aa7 | 938 | return tool->read(tool, event, sample, evsel, machine); |
cbf41645 | 939 | case PERF_RECORD_THROTTLE: |
45694aa7 | 940 | return tool->throttle(tool, event, sample, machine); |
cbf41645 | 941 | case PERF_RECORD_UNTHROTTLE: |
45694aa7 | 942 | return tool->unthrottle(tool, event, sample, machine); |
cbf41645 | 943 | default: |
75be989a | 944 | ++session->evlist->stats.nr_unknown_events; |
cbf41645 TG |
945 | return -1; |
946 | } | |
947 | } | |
948 | ||
d5652d86 AH |
949 | static s64 perf_session__process_user_event(struct perf_session *session, |
950 | union perf_event *event, | |
951 | struct perf_tool *tool, | |
952 | u64 file_offset) | |
06aae590 | 953 | { |
cc9784bd | 954 | int fd = perf_data_file__fd(session->file); |
10d0f086 ACM |
955 | int err; |
956 | ||
ba74f064 | 957 | dump_event(session, event, file_offset, NULL); |
06aae590 | 958 | |
cbf41645 | 959 | /* These events are processed right away */ |
06aae590 | 960 | switch (event->header.type) { |
2c46dbb5 | 961 | case PERF_RECORD_HEADER_ATTR: |
47c3d109 | 962 | err = tool->attr(tool, event, &session->evlist); |
cfe1c414 | 963 | if (err == 0) { |
7b56cce2 | 964 | perf_session__set_id_hdr_size(session); |
cfe1c414 AH |
965 | perf_session__set_comm_exec(session); |
966 | } | |
10d0f086 | 967 | return err; |
f67697bd JO |
968 | case PERF_RECORD_HEADER_EVENT_TYPE: |
969 | /* | |
970 | * Depreceated, but we need to handle it for sake | |
971 | * of old data files create in pipe mode. | |
972 | */ | |
973 | return 0; | |
9215545e TZ |
974 | case PERF_RECORD_HEADER_TRACING_DATA: |
975 | /* setup for reading amidst mmap */ | |
cc9784bd | 976 | lseek(fd, file_offset, SEEK_SET); |
47c3d109 | 977 | return tool->tracing_data(tool, event, session); |
c7929e47 | 978 | case PERF_RECORD_HEADER_BUILD_ID: |
45694aa7 | 979 | return tool->build_id(tool, event, session); |
d6b17beb | 980 | case PERF_RECORD_FINISHED_ROUND: |
45694aa7 | 981 | return tool->finished_round(tool, event, session); |
3c659eed AH |
982 | case PERF_RECORD_ID_INDEX: |
983 | return tool->id_index(tool, event, session); | |
06aae590 | 984 | default: |
ba74f064 | 985 | return -EINVAL; |
06aae590 | 986 | } |
ba74f064 TG |
987 | } |
988 | ||
a293829d AH |
989 | int perf_session__deliver_synth_event(struct perf_session *session, |
990 | union perf_event *event, | |
991 | struct perf_sample *sample, | |
992 | struct perf_tool *tool) | |
993 | { | |
75be989a | 994 | events_stats__inc(&session->evlist->stats, event->header.type); |
a293829d AH |
995 | |
996 | if (event->header.type >= PERF_RECORD_USER_TYPE_START) | |
997 | return perf_session__process_user_event(session, event, tool, 0); | |
998 | ||
999 | return perf_session__deliver_event(session, event, sample, tool, 0); | |
1000 | } | |
1001 | ||
268fb20f JO |
1002 | static void event_swap(union perf_event *event, bool sample_id_all) |
1003 | { | |
1004 | perf_event__swap_op swap; | |
1005 | ||
1006 | swap = perf_event__swap_ops[event->header.type]; | |
1007 | if (swap) | |
1008 | swap(event, sample_id_all); | |
1009 | } | |
1010 | ||
5a52f33a AH |
1011 | int perf_session__peek_event(struct perf_session *session, off_t file_offset, |
1012 | void *buf, size_t buf_sz, | |
1013 | union perf_event **event_ptr, | |
1014 | struct perf_sample *sample) | |
1015 | { | |
1016 | union perf_event *event; | |
1017 | size_t hdr_sz, rest; | |
1018 | int fd; | |
1019 | ||
1020 | if (session->one_mmap && !session->header.needs_swap) { | |
1021 | event = file_offset - session->one_mmap_offset + | |
1022 | session->one_mmap_addr; | |
1023 | goto out_parse_sample; | |
1024 | } | |
1025 | ||
1026 | if (perf_data_file__is_pipe(session->file)) | |
1027 | return -1; | |
1028 | ||
1029 | fd = perf_data_file__fd(session->file); | |
1030 | hdr_sz = sizeof(struct perf_event_header); | |
1031 | ||
1032 | if (buf_sz < hdr_sz) | |
1033 | return -1; | |
1034 | ||
1035 | if (lseek(fd, file_offset, SEEK_SET) == (off_t)-1 || | |
1036 | readn(fd, &buf, hdr_sz) != (ssize_t)hdr_sz) | |
1037 | return -1; | |
1038 | ||
1039 | event = (union perf_event *)buf; | |
1040 | ||
1041 | if (session->header.needs_swap) | |
1042 | perf_event_header__bswap(&event->header); | |
1043 | ||
1044 | if (event->header.size < hdr_sz) | |
1045 | return -1; | |
1046 | ||
1047 | rest = event->header.size - hdr_sz; | |
1048 | ||
1049 | if (readn(fd, &buf, rest) != (ssize_t)rest) | |
1050 | return -1; | |
1051 | ||
1052 | if (session->header.needs_swap) | |
1053 | event_swap(event, perf_evlist__sample_id_all(session->evlist)); | |
1054 | ||
1055 | out_parse_sample: | |
1056 | ||
1057 | if (sample && event->header.type < PERF_RECORD_USER_TYPE_START && | |
1058 | perf_evlist__parse_sample(session->evlist, event, sample)) | |
1059 | return -1; | |
1060 | ||
1061 | *event_ptr = event; | |
1062 | ||
1063 | return 0; | |
1064 | } | |
1065 | ||
d5652d86 | 1066 | static s64 perf_session__process_event(struct perf_session *session, |
e30b88a7 DA |
1067 | union perf_event *event, |
1068 | struct perf_tool *tool, | |
1069 | u64 file_offset) | |
ba74f064 | 1070 | { |
8d50e5b4 | 1071 | struct perf_sample sample; |
ba74f064 TG |
1072 | int ret; |
1073 | ||
268fb20f | 1074 | if (session->header.needs_swap) |
5e562474 | 1075 | event_swap(event, perf_evlist__sample_id_all(session->evlist)); |
ba74f064 TG |
1076 | |
1077 | if (event->header.type >= PERF_RECORD_HEADER_MAX) | |
1078 | return -EINVAL; | |
1079 | ||
75be989a | 1080 | events_stats__inc(&session->evlist->stats, event->header.type); |
ba74f064 TG |
1081 | |
1082 | if (event->header.type >= PERF_RECORD_USER_TYPE_START) | |
45694aa7 | 1083 | return perf_session__process_user_event(session, event, tool, file_offset); |
cbf41645 | 1084 | |
3dfc2c0a TG |
1085 | /* |
1086 | * For all kernel events we get the sample data | |
1087 | */ | |
0807d2d8 | 1088 | ret = perf_evlist__parse_sample(session->evlist, event, &sample); |
5538beca FW |
1089 | if (ret) |
1090 | return ret; | |
3dfc2c0a | 1091 | |
0a8cb85c | 1092 | if (tool->ordered_events) { |
d40b4a15 | 1093 | ret = perf_session_queue_event(session, event, tool, &sample, |
e4c2df13 | 1094 | file_offset); |
cbf41645 TG |
1095 | if (ret != -ETIME) |
1096 | return ret; | |
1097 | } | |
1098 | ||
79a30fe4 JO |
1099 | return perf_session__deliver_event(session, event, &sample, tool, |
1100 | file_offset); | |
06aae590 ACM |
1101 | } |
1102 | ||
316c7136 | 1103 | void perf_event_header__bswap(struct perf_event_header *hdr) |
ba21594c | 1104 | { |
316c7136 ACM |
1105 | hdr->type = bswap_32(hdr->type); |
1106 | hdr->misc = bswap_16(hdr->misc); | |
1107 | hdr->size = bswap_16(hdr->size); | |
ba21594c ACM |
1108 | } |
1109 | ||
b424eba2 ACM |
1110 | struct thread *perf_session__findnew(struct perf_session *session, pid_t pid) |
1111 | { | |
1fcb8768 | 1112 | return machine__findnew_thread(&session->machines.host, -1, pid); |
b424eba2 ACM |
1113 | } |
1114 | ||
316c7136 | 1115 | static struct thread *perf_session__register_idle_thread(struct perf_session *session) |
06aae590 | 1116 | { |
1fcb8768 | 1117 | struct thread *thread; |
06aae590 | 1118 | |
1fcb8768 | 1119 | thread = machine__findnew_thread(&session->machines.host, 0, 0); |
162f0bef | 1120 | if (thread == NULL || thread__set_comm(thread, "swapper", 0)) { |
06aae590 ACM |
1121 | pr_err("problem inserting idle task.\n"); |
1122 | thread = NULL; | |
1123 | } | |
1124 | ||
1125 | return thread; | |
1126 | } | |
1127 | ||
ccda068f ACM |
1128 | static void perf_tool__warn_about_errors(const struct perf_tool *tool, |
1129 | const struct events_stats *stats) | |
11095994 | 1130 | { |
45694aa7 | 1131 | if (tool->lost == perf_event__process_lost && |
ccda068f | 1132 | stats->nr_events[PERF_RECORD_LOST] != 0) { |
7b27509f ACM |
1133 | ui__warning("Processed %d events and lost %d chunks!\n\n" |
1134 | "Check IO/CPU overload!\n\n", | |
ccda068f ACM |
1135 | stats->nr_events[0], |
1136 | stats->nr_events[PERF_RECORD_LOST]); | |
11095994 ACM |
1137 | } |
1138 | ||
ccda068f | 1139 | if (stats->nr_unknown_events != 0) { |
11095994 ACM |
1140 | ui__warning("Found %u unknown events!\n\n" |
1141 | "Is this an older tool processing a perf.data " | |
1142 | "file generated by a more recent tool?\n\n" | |
1143 | "If that is not the case, consider " | |
1144 | "reporting to linux-kernel@vger.kernel.org.\n\n", | |
ccda068f | 1145 | stats->nr_unknown_events); |
11095994 ACM |
1146 | } |
1147 | ||
ccda068f | 1148 | if (stats->nr_unknown_id != 0) { |
9e69c210 | 1149 | ui__warning("%u samples with id not present in the header\n", |
ccda068f | 1150 | stats->nr_unknown_id); |
9e69c210 ACM |
1151 | } |
1152 | ||
ccda068f | 1153 | if (stats->nr_invalid_chains != 0) { |
75be989a ACM |
1154 | ui__warning("Found invalid callchains!\n\n" |
1155 | "%u out of %u events were discarded for this reason.\n\n" | |
1156 | "Consider reporting to linux-kernel@vger.kernel.org.\n\n", | |
ccda068f ACM |
1157 | stats->nr_invalid_chains, |
1158 | stats->nr_events[PERF_RECORD_SAMPLE]); | |
75be989a | 1159 | } |
0c095715 | 1160 | |
ccda068f | 1161 | if (stats->nr_unprocessable_samples != 0) { |
0c095715 JR |
1162 | ui__warning("%u unprocessable samples recorded.\n" |
1163 | "Do you have a KVM guest running and not using 'perf kvm'?\n", | |
ccda068f | 1164 | stats->nr_unprocessable_samples); |
0c095715 | 1165 | } |
f61ff6c0 | 1166 | |
ccda068f ACM |
1167 | if (stats->nr_unordered_events != 0) |
1168 | ui__warning("%u out of order events recorded.\n", stats->nr_unordered_events); | |
11095994 ACM |
1169 | } |
1170 | ||
8dc58101 TZ |
1171 | volatile int session_done; |
1172 | ||
316c7136 | 1173 | static int __perf_session__process_pipe_events(struct perf_session *session, |
45694aa7 | 1174 | struct perf_tool *tool) |
8dc58101 | 1175 | { |
316c7136 | 1176 | int fd = perf_data_file__fd(session->file); |
444d2866 SE |
1177 | union perf_event *event; |
1178 | uint32_t size, cur_size = 0; | |
1179 | void *buf = NULL; | |
d5652d86 | 1180 | s64 skip = 0; |
8dc58101 | 1181 | u64 head; |
727ebd54 | 1182 | ssize_t err; |
8dc58101 TZ |
1183 | void *p; |
1184 | ||
45694aa7 | 1185 | perf_tool__fill_defaults(tool); |
8dc58101 TZ |
1186 | |
1187 | head = 0; | |
444d2866 SE |
1188 | cur_size = sizeof(union perf_event); |
1189 | ||
1190 | buf = malloc(cur_size); | |
1191 | if (!buf) | |
1192 | return -errno; | |
8dc58101 | 1193 | more: |
444d2866 | 1194 | event = buf; |
cc9784bd | 1195 | err = readn(fd, event, sizeof(struct perf_event_header)); |
8dc58101 TZ |
1196 | if (err <= 0) { |
1197 | if (err == 0) | |
1198 | goto done; | |
1199 | ||
1200 | pr_err("failed to read event header\n"); | |
1201 | goto out_err; | |
1202 | } | |
1203 | ||
316c7136 | 1204 | if (session->header.needs_swap) |
444d2866 | 1205 | perf_event_header__bswap(&event->header); |
8dc58101 | 1206 | |
444d2866 | 1207 | size = event->header.size; |
27389d78 AH |
1208 | if (size < sizeof(struct perf_event_header)) { |
1209 | pr_err("bad event header size\n"); | |
1210 | goto out_err; | |
1211 | } | |
8dc58101 | 1212 | |
444d2866 SE |
1213 | if (size > cur_size) { |
1214 | void *new = realloc(buf, size); | |
1215 | if (!new) { | |
1216 | pr_err("failed to allocate memory to read event\n"); | |
1217 | goto out_err; | |
1218 | } | |
1219 | buf = new; | |
1220 | cur_size = size; | |
1221 | event = buf; | |
1222 | } | |
1223 | p = event; | |
8dc58101 TZ |
1224 | p += sizeof(struct perf_event_header); |
1225 | ||
794e43b5 | 1226 | if (size - sizeof(struct perf_event_header)) { |
cc9784bd | 1227 | err = readn(fd, p, size - sizeof(struct perf_event_header)); |
794e43b5 TZ |
1228 | if (err <= 0) { |
1229 | if (err == 0) { | |
1230 | pr_err("unexpected end of event stream\n"); | |
1231 | goto done; | |
1232 | } | |
8dc58101 | 1233 | |
794e43b5 TZ |
1234 | pr_err("failed to read event data\n"); |
1235 | goto out_err; | |
1236 | } | |
8dc58101 TZ |
1237 | } |
1238 | ||
316c7136 | 1239 | if ((skip = perf_session__process_event(session, event, tool, head)) < 0) { |
9389a460 | 1240 | pr_err("%#" PRIx64 " [%#x]: failed to process type: %d\n", |
444d2866 | 1241 | head, event->header.size, event->header.type); |
9389a460 JO |
1242 | err = -EINVAL; |
1243 | goto out_err; | |
8dc58101 TZ |
1244 | } |
1245 | ||
1246 | head += size; | |
1247 | ||
8dc58101 TZ |
1248 | if (skip > 0) |
1249 | head += skip; | |
1250 | ||
1251 | if (!session_done()) | |
1252 | goto more; | |
1253 | done: | |
8c16b649 | 1254 | /* do the final flush for ordered samples */ |
d8836b5d | 1255 | err = ordered_events__flush(session, tool, OE_FLUSH__FINAL); |
8dc58101 | 1256 | out_err: |
444d2866 | 1257 | free(buf); |
ccda068f | 1258 | perf_tool__warn_about_errors(tool, &session->evlist->stats); |
adc56ed1 | 1259 | ordered_events__free(&session->ordered_events); |
8dc58101 TZ |
1260 | return err; |
1261 | } | |
1262 | ||
998bedc8 FW |
1263 | static union perf_event * |
1264 | fetch_mmaped_event(struct perf_session *session, | |
1265 | u64 head, size_t mmap_size, char *buf) | |
1266 | { | |
1267 | union perf_event *event; | |
1268 | ||
1269 | /* | |
1270 | * Ensure we have enough space remaining to read | |
1271 | * the size of the event in the headers. | |
1272 | */ | |
1273 | if (head + sizeof(event->header) > mmap_size) | |
1274 | return NULL; | |
1275 | ||
1276 | event = (union perf_event *)(buf + head); | |
1277 | ||
1278 | if (session->header.needs_swap) | |
1279 | perf_event_header__bswap(&event->header); | |
1280 | ||
27389d78 AH |
1281 | if (head + event->header.size > mmap_size) { |
1282 | /* We're not fetching the event so swap back again */ | |
1283 | if (session->header.needs_swap) | |
1284 | perf_event_header__bswap(&event->header); | |
998bedc8 | 1285 | return NULL; |
27389d78 | 1286 | } |
998bedc8 FW |
1287 | |
1288 | return event; | |
1289 | } | |
1290 | ||
35d48ddf DM |
1291 | /* |
1292 | * On 64bit we can mmap the data file in one go. No need for tiny mmap | |
1293 | * slices. On 32bit we use 32MB. | |
1294 | */ | |
1295 | #if BITS_PER_LONG == 64 | |
1296 | #define MMAP_SIZE ULLONG_MAX | |
1297 | #define NUM_MMAPS 1 | |
1298 | #else | |
1299 | #define MMAP_SIZE (32 * 1024 * 1024ULL) | |
1300 | #define NUM_MMAPS 128 | |
1301 | #endif | |
1302 | ||
4ac30cf7 NK |
1303 | static int __perf_session__process_events(struct perf_session *session, |
1304 | u64 data_offset, u64 data_size, | |
1305 | u64 file_size, struct perf_tool *tool) | |
06aae590 | 1306 | { |
cc9784bd | 1307 | int fd = perf_data_file__fd(session->file); |
d5652d86 | 1308 | u64 head, page_offset, file_offset, file_pos, size; |
fe174207 | 1309 | int err, mmap_prot, mmap_flags, map_idx = 0; |
0c1fe6b2 | 1310 | size_t mmap_size; |
35d48ddf | 1311 | char *buf, *mmaps[NUM_MMAPS]; |
8115d60c | 1312 | union perf_event *event; |
4d3001fd | 1313 | struct ui_progress prog; |
d5652d86 | 1314 | s64 skip; |
0331ee0c | 1315 | |
45694aa7 | 1316 | perf_tool__fill_defaults(tool); |
06aae590 | 1317 | |
0331ee0c TG |
1318 | page_offset = page_size * (data_offset / page_size); |
1319 | file_offset = page_offset; | |
1320 | head = data_offset - page_offset; | |
06aae590 | 1321 | |
b314e5cf | 1322 | if (data_size && (data_offset + data_size < file_size)) |
d6513281 TG |
1323 | file_size = data_offset + data_size; |
1324 | ||
4d3001fd | 1325 | ui_progress__init(&prog, file_size, "Processing events..."); |
55b44629 | 1326 | |
35d48ddf | 1327 | mmap_size = MMAP_SIZE; |
919d86d3 | 1328 | if (mmap_size > file_size) { |
55b44629 | 1329 | mmap_size = file_size; |
919d86d3 AH |
1330 | session->one_mmap = true; |
1331 | } | |
55b44629 | 1332 | |
fe174207 TG |
1333 | memset(mmaps, 0, sizeof(mmaps)); |
1334 | ||
ba21594c ACM |
1335 | mmap_prot = PROT_READ; |
1336 | mmap_flags = MAP_SHARED; | |
1337 | ||
0331ee0c | 1338 | if (session->header.needs_swap) { |
ba21594c ACM |
1339 | mmap_prot |= PROT_WRITE; |
1340 | mmap_flags = MAP_PRIVATE; | |
1341 | } | |
06aae590 | 1342 | remap: |
cc9784bd | 1343 | buf = mmap(NULL, mmap_size, mmap_prot, mmap_flags, fd, |
55b44629 | 1344 | file_offset); |
06aae590 ACM |
1345 | if (buf == MAP_FAILED) { |
1346 | pr_err("failed to mmap file\n"); | |
1347 | err = -errno; | |
1348 | goto out_err; | |
1349 | } | |
fe174207 TG |
1350 | mmaps[map_idx] = buf; |
1351 | map_idx = (map_idx + 1) & (ARRAY_SIZE(mmaps) - 1); | |
d6513281 | 1352 | file_pos = file_offset + head; |
919d86d3 AH |
1353 | if (session->one_mmap) { |
1354 | session->one_mmap_addr = buf; | |
1355 | session->one_mmap_offset = file_offset; | |
1356 | } | |
06aae590 ACM |
1357 | |
1358 | more: | |
998bedc8 FW |
1359 | event = fetch_mmaped_event(session, head, mmap_size, buf); |
1360 | if (!event) { | |
fe174207 TG |
1361 | if (mmaps[map_idx]) { |
1362 | munmap(mmaps[map_idx], mmap_size); | |
1363 | mmaps[map_idx] = NULL; | |
1364 | } | |
06aae590 | 1365 | |
0331ee0c TG |
1366 | page_offset = page_size * (head / page_size); |
1367 | file_offset += page_offset; | |
1368 | head -= page_offset; | |
06aae590 ACM |
1369 | goto remap; |
1370 | } | |
1371 | ||
1372 | size = event->header.size; | |
1373 | ||
27389d78 | 1374 | if (size < sizeof(struct perf_event_header) || |
6f917c70 AH |
1375 | (skip = perf_session__process_event(session, event, tool, file_pos)) |
1376 | < 0) { | |
9389a460 JO |
1377 | pr_err("%#" PRIx64 " [%#x]: failed to process type: %d\n", |
1378 | file_offset + head, event->header.size, | |
1379 | event->header.type); | |
1380 | err = -EINVAL; | |
1381 | goto out_err; | |
06aae590 ACM |
1382 | } |
1383 | ||
6f917c70 AH |
1384 | if (skip) |
1385 | size += skip; | |
1386 | ||
06aae590 | 1387 | head += size; |
d6513281 | 1388 | file_pos += size; |
06aae590 | 1389 | |
4d3001fd | 1390 | ui_progress__update(&prog, size); |
55b44629 | 1391 | |
33e940a2 | 1392 | if (session_done()) |
8c16b649 | 1393 | goto out; |
33e940a2 | 1394 | |
d6513281 | 1395 | if (file_pos < file_size) |
06aae590 | 1396 | goto more; |
d6513281 | 1397 | |
8c16b649 | 1398 | out: |
c61e52ee | 1399 | /* do the final flush for ordered samples */ |
d8836b5d | 1400 | err = ordered_events__flush(session, tool, OE_FLUSH__FINAL); |
06aae590 | 1401 | out_err: |
a5580f3e | 1402 | ui_progress__finish(); |
ccda068f | 1403 | perf_tool__warn_about_errors(tool, &session->evlist->stats); |
adc56ed1 | 1404 | ordered_events__free(&session->ordered_events); |
919d86d3 | 1405 | session->one_mmap = false; |
06aae590 ACM |
1406 | return err; |
1407 | } | |
27295592 | 1408 | |
316c7136 | 1409 | int perf_session__process_events(struct perf_session *session, |
45694aa7 | 1410 | struct perf_tool *tool) |
6122e4e4 | 1411 | { |
316c7136 | 1412 | u64 size = perf_data_file__size(session->file); |
6122e4e4 ACM |
1413 | int err; |
1414 | ||
316c7136 | 1415 | if (perf_session__register_idle_thread(session) == NULL) |
6122e4e4 ACM |
1416 | return -ENOMEM; |
1417 | ||
316c7136 ACM |
1418 | if (!perf_data_file__is_pipe(session->file)) |
1419 | err = __perf_session__process_events(session, | |
1420 | session->header.data_offset, | |
1421 | session->header.data_size, | |
cc9784bd | 1422 | size, tool); |
8dc58101 | 1423 | else |
316c7136 | 1424 | err = __perf_session__process_pipe_events(session, tool); |
88ca895d | 1425 | |
6122e4e4 ACM |
1426 | return err; |
1427 | } | |
1428 | ||
7f3be652 | 1429 | bool perf_session__has_traces(struct perf_session *session, const char *msg) |
27295592 | 1430 | { |
93ea01c2 DA |
1431 | struct perf_evsel *evsel; |
1432 | ||
0050f7aa | 1433 | evlist__for_each(session->evlist, evsel) { |
93ea01c2 DA |
1434 | if (evsel->attr.type == PERF_TYPE_TRACEPOINT) |
1435 | return true; | |
27295592 ACM |
1436 | } |
1437 | ||
93ea01c2 DA |
1438 | pr_err("No trace sample to read. Did you call 'perf %s'?\n", msg); |
1439 | return false; | |
27295592 | 1440 | } |
56b03f3c | 1441 | |
743eb868 ACM |
1442 | int maps__set_kallsyms_ref_reloc_sym(struct map **maps, |
1443 | const char *symbol_name, u64 addr) | |
56b03f3c ACM |
1444 | { |
1445 | char *bracket; | |
9de89fe7 | 1446 | enum map_type i; |
a1645ce1 ZY |
1447 | struct ref_reloc_sym *ref; |
1448 | ||
1449 | ref = zalloc(sizeof(struct ref_reloc_sym)); | |
1450 | if (ref == NULL) | |
1451 | return -ENOMEM; | |
56b03f3c | 1452 | |
a1645ce1 ZY |
1453 | ref->name = strdup(symbol_name); |
1454 | if (ref->name == NULL) { | |
1455 | free(ref); | |
56b03f3c | 1456 | return -ENOMEM; |
a1645ce1 | 1457 | } |
56b03f3c | 1458 | |
a1645ce1 | 1459 | bracket = strchr(ref->name, ']'); |
56b03f3c ACM |
1460 | if (bracket) |
1461 | *bracket = '\0'; | |
1462 | ||
a1645ce1 | 1463 | ref->addr = addr; |
9de89fe7 ACM |
1464 | |
1465 | for (i = 0; i < MAP__NR_TYPES; ++i) { | |
a1645ce1 ZY |
1466 | struct kmap *kmap = map__kmap(maps[i]); |
1467 | kmap->ref_reloc_sym = ref; | |
9de89fe7 ACM |
1468 | } |
1469 | ||
56b03f3c ACM |
1470 | return 0; |
1471 | } | |
1f626bc3 | 1472 | |
316c7136 | 1473 | size_t perf_session__fprintf_dsos(struct perf_session *session, FILE *fp) |
1f626bc3 | 1474 | { |
316c7136 | 1475 | return machines__fprintf_dsos(&session->machines, fp); |
1f626bc3 | 1476 | } |
f869097e | 1477 | |
316c7136 | 1478 | size_t perf_session__fprintf_dsos_buildid(struct perf_session *session, FILE *fp, |
417c2ff6 | 1479 | bool (skip)(struct dso *dso, int parm), int parm) |
f869097e | 1480 | { |
316c7136 | 1481 | return machines__fprintf_dsos_buildid(&session->machines, fp, skip, parm); |
f869097e | 1482 | } |
e248de33 ACM |
1483 | |
1484 | size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp) | |
1485 | { | |
e248de33 ACM |
1486 | size_t ret = fprintf(fp, "Aggregated stats:\n"); |
1487 | ||
75be989a | 1488 | ret += events_stats__fprintf(&session->evlist->stats, fp); |
e248de33 ACM |
1489 | return ret; |
1490 | } | |
c0230b2b | 1491 | |
b424eba2 ACM |
1492 | size_t perf_session__fprintf(struct perf_session *session, FILE *fp) |
1493 | { | |
1494 | /* | |
1495 | * FIXME: Here we have to actually print all the machines in this | |
1496 | * session, not just the host... | |
1497 | */ | |
876650e6 | 1498 | return machine__fprintf(&session->machines.host, fp); |
b424eba2 ACM |
1499 | } |
1500 | ||
9cbdb702 DA |
1501 | struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session, |
1502 | unsigned int type) | |
1503 | { | |
1504 | struct perf_evsel *pos; | |
1505 | ||
0050f7aa | 1506 | evlist__for_each(session->evlist, pos) { |
9cbdb702 DA |
1507 | if (pos->attr.type == type) |
1508 | return pos; | |
1509 | } | |
1510 | return NULL; | |
1511 | } | |
1512 | ||
a2cb3cf2 | 1513 | void perf_evsel__print_ip(struct perf_evsel *evsel, struct perf_sample *sample, |
cc22e575 | 1514 | struct addr_location *al, |
307cbb92 | 1515 | unsigned int print_opts, unsigned int stack_depth) |
c0230b2b | 1516 | { |
c0230b2b | 1517 | struct callchain_cursor_node *node; |
a6ffaf91 DA |
1518 | int print_ip = print_opts & PRINT_IP_OPT_IP; |
1519 | int print_sym = print_opts & PRINT_IP_OPT_SYM; | |
1520 | int print_dso = print_opts & PRINT_IP_OPT_DSO; | |
1521 | int print_symoffset = print_opts & PRINT_IP_OPT_SYMOFFSET; | |
b0b35f01 | 1522 | int print_oneline = print_opts & PRINT_IP_OPT_ONELINE; |
cc8fae1d | 1523 | int print_srcline = print_opts & PRINT_IP_OPT_SRCLINE; |
b0b35f01 | 1524 | char s = print_oneline ? ' ' : '\t'; |
c0230b2b | 1525 | |
c0230b2b | 1526 | if (symbol_conf.use_callchain && sample->callchain) { |
a2cb3cf2 | 1527 | struct addr_location node_al; |
c0230b2b | 1528 | |
cc8b7c2b ACM |
1529 | if (thread__resolve_callchain(al->thread, evsel, |
1530 | sample, NULL, NULL, | |
1531 | PERF_MAX_STACK_DEPTH) != 0) { | |
c0230b2b DA |
1532 | if (verbose) |
1533 | error("Failed to resolve callchain. Skipping\n"); | |
1534 | return; | |
1535 | } | |
47260645 | 1536 | callchain_cursor_commit(&callchain_cursor); |
c0230b2b | 1537 | |
a2cb3cf2 AH |
1538 | if (print_symoffset) |
1539 | node_al = *al; | |
1540 | ||
307cbb92 | 1541 | while (stack_depth) { |
a4eb24a4 AH |
1542 | u64 addr = 0; |
1543 | ||
47260645 | 1544 | node = callchain_cursor_current(&callchain_cursor); |
c0230b2b DA |
1545 | if (!node) |
1546 | break; | |
1547 | ||
d2ff1b14 DA |
1548 | if (node->sym && node->sym->ignore) |
1549 | goto next; | |
1550 | ||
a6ffaf91 | 1551 | if (print_ip) |
b0b35f01 | 1552 | printf("%c%16" PRIx64, s, node->ip); |
a6ffaf91 | 1553 | |
a4eb24a4 AH |
1554 | if (node->map) |
1555 | addr = node->map->map_ip(node->map, node->ip); | |
1556 | ||
787bef17 | 1557 | if (print_sym) { |
547a92e0 | 1558 | printf(" "); |
251f426f | 1559 | if (print_symoffset) { |
a4eb24a4 | 1560 | node_al.addr = addr; |
a2cb3cf2 AH |
1561 | node_al.map = node->map; |
1562 | symbol__fprintf_symname_offs(node->sym, &node_al, stdout); | |
251f426f DA |
1563 | } else |
1564 | symbol__fprintf_symname(node->sym, stdout); | |
610723f2 | 1565 | } |
251f426f | 1566 | |
610723f2 | 1567 | if (print_dso) { |
547a92e0 | 1568 | printf(" ("); |
52deff71 | 1569 | map__fprintf_dsoname(node->map, stdout); |
547a92e0 | 1570 | printf(")"); |
787bef17 | 1571 | } |
b0b35f01 | 1572 | |
cc8fae1d AH |
1573 | if (print_srcline) |
1574 | map__fprintf_srcline(node->map, addr, "\n ", | |
1575 | stdout); | |
1576 | ||
b0b35f01 DA |
1577 | if (!print_oneline) |
1578 | printf("\n"); | |
c0230b2b | 1579 | |
307cbb92 | 1580 | stack_depth--; |
d2ff1b14 DA |
1581 | next: |
1582 | callchain_cursor_advance(&callchain_cursor); | |
c0230b2b DA |
1583 | } |
1584 | ||
1585 | } else { | |
a2cb3cf2 | 1586 | if (al->sym && al->sym->ignore) |
d2ff1b14 DA |
1587 | return; |
1588 | ||
a6ffaf91 DA |
1589 | if (print_ip) |
1590 | printf("%16" PRIx64, sample->ip); | |
1591 | ||
787bef17 | 1592 | if (print_sym) { |
547a92e0 | 1593 | printf(" "); |
a978f2ab | 1594 | if (print_symoffset) |
a2cb3cf2 | 1595 | symbol__fprintf_symname_offs(al->sym, al, |
a978f2ab AN |
1596 | stdout); |
1597 | else | |
a2cb3cf2 | 1598 | symbol__fprintf_symname(al->sym, stdout); |
610723f2 DA |
1599 | } |
1600 | ||
1601 | if (print_dso) { | |
547a92e0 | 1602 | printf(" ("); |
a2cb3cf2 | 1603 | map__fprintf_dsoname(al->map, stdout); |
547a92e0 | 1604 | printf(")"); |
787bef17 | 1605 | } |
cc8fae1d AH |
1606 | |
1607 | if (print_srcline) | |
1608 | map__fprintf_srcline(al->map, al->addr, "\n ", stdout); | |
c0230b2b DA |
1609 | } |
1610 | } | |
5d67be97 AB |
1611 | |
1612 | int perf_session__cpu_bitmap(struct perf_session *session, | |
1613 | const char *cpu_list, unsigned long *cpu_bitmap) | |
1614 | { | |
8bac41cb | 1615 | int i, err = -1; |
5d67be97 AB |
1616 | struct cpu_map *map; |
1617 | ||
1618 | for (i = 0; i < PERF_TYPE_MAX; ++i) { | |
1619 | struct perf_evsel *evsel; | |
1620 | ||
1621 | evsel = perf_session__find_first_evtype(session, i); | |
1622 | if (!evsel) | |
1623 | continue; | |
1624 | ||
1625 | if (!(evsel->attr.sample_type & PERF_SAMPLE_CPU)) { | |
1626 | pr_err("File does not contain CPU events. " | |
1627 | "Remove -c option to proceed.\n"); | |
1628 | return -1; | |
1629 | } | |
1630 | } | |
1631 | ||
1632 | map = cpu_map__new(cpu_list); | |
47fbe53b DA |
1633 | if (map == NULL) { |
1634 | pr_err("Invalid cpu_list\n"); | |
1635 | return -1; | |
1636 | } | |
5d67be97 AB |
1637 | |
1638 | for (i = 0; i < map->nr; i++) { | |
1639 | int cpu = map->map[i]; | |
1640 | ||
1641 | if (cpu >= MAX_NR_CPUS) { | |
1642 | pr_err("Requested CPU %d too large. " | |
1643 | "Consider raising MAX_NR_CPUS\n", cpu); | |
8bac41cb | 1644 | goto out_delete_map; |
5d67be97 AB |
1645 | } |
1646 | ||
1647 | set_bit(cpu, cpu_bitmap); | |
1648 | } | |
1649 | ||
8bac41cb SF |
1650 | err = 0; |
1651 | ||
1652 | out_delete_map: | |
1653 | cpu_map__delete(map); | |
1654 | return err; | |
5d67be97 | 1655 | } |
fbe96f29 SE |
1656 | |
1657 | void perf_session__fprintf_info(struct perf_session *session, FILE *fp, | |
1658 | bool full) | |
1659 | { | |
1660 | struct stat st; | |
c5765ece | 1661 | int fd, ret; |
fbe96f29 SE |
1662 | |
1663 | if (session == NULL || fp == NULL) | |
1664 | return; | |
1665 | ||
c5765ece MI |
1666 | fd = perf_data_file__fd(session->file); |
1667 | ||
cc9784bd | 1668 | ret = fstat(fd, &st); |
fbe96f29 SE |
1669 | if (ret == -1) |
1670 | return; | |
1671 | ||
1672 | fprintf(fp, "# ========\n"); | |
1673 | fprintf(fp, "# captured on: %s", ctime(&st.st_ctime)); | |
1674 | perf_header__fprintf_info(session, fp, full); | |
1675 | fprintf(fp, "# ========\n#\n"); | |
1676 | } | |
da378962 ACM |
1677 | |
1678 | ||
1679 | int __perf_session__set_tracepoints_handlers(struct perf_session *session, | |
1680 | const struct perf_evsel_str_handler *assocs, | |
1681 | size_t nr_assocs) | |
1682 | { | |
da378962 | 1683 | struct perf_evsel *evsel; |
da378962 ACM |
1684 | size_t i; |
1685 | int err; | |
1686 | ||
1687 | for (i = 0; i < nr_assocs; i++) { | |
ccf53eac ACM |
1688 | /* |
1689 | * Adding a handler for an event not in the session, | |
1690 | * just ignore it. | |
1691 | */ | |
1692 | evsel = perf_evlist__find_tracepoint_by_name(session->evlist, assocs[i].name); | |
da378962 | 1693 | if (evsel == NULL) |
ccf53eac | 1694 | continue; |
da378962 ACM |
1695 | |
1696 | err = -EEXIST; | |
744a9719 | 1697 | if (evsel->handler != NULL) |
ccf53eac | 1698 | goto out; |
744a9719 | 1699 | evsel->handler = assocs[i].handler; |
da378962 ACM |
1700 | } |
1701 | ||
1702 | err = 0; | |
1703 | out: | |
1704 | return err; | |
da378962 | 1705 | } |
3c659eed AH |
1706 | |
1707 | int perf_event__process_id_index(struct perf_tool *tool __maybe_unused, | |
1708 | union perf_event *event, | |
1709 | struct perf_session *session) | |
1710 | { | |
1711 | struct perf_evlist *evlist = session->evlist; | |
1712 | struct id_index_event *ie = &event->id_index; | |
1713 | size_t i, nr, max_nr; | |
1714 | ||
1715 | max_nr = (ie->header.size - sizeof(struct id_index_event)) / | |
1716 | sizeof(struct id_index_entry); | |
1717 | nr = ie->nr; | |
1718 | if (nr > max_nr) | |
1719 | return -EINVAL; | |
1720 | ||
1721 | if (dump_trace) | |
1722 | fprintf(stdout, " nr: %zu\n", nr); | |
1723 | ||
1724 | for (i = 0; i < nr; i++) { | |
1725 | struct id_index_entry *e = &ie->entries[i]; | |
1726 | struct perf_sample_id *sid; | |
1727 | ||
1728 | if (dump_trace) { | |
1729 | fprintf(stdout, " ... id: %"PRIu64, e->id); | |
1730 | fprintf(stdout, " idx: %"PRIu64, e->idx); | |
1731 | fprintf(stdout, " cpu: %"PRId64, e->cpu); | |
1732 | fprintf(stdout, " tid: %"PRId64"\n", e->tid); | |
1733 | } | |
1734 | ||
1735 | sid = perf_evlist__id2sid(evlist, e->id); | |
1736 | if (!sid) | |
1737 | return -ENOENT; | |
1738 | sid->idx = e->idx; | |
1739 | sid->cpu = e->cpu; | |
1740 | sid->tid = e->tid; | |
1741 | } | |
1742 | return 0; | |
1743 | } | |
1744 | ||
1745 | int perf_event__synthesize_id_index(struct perf_tool *tool, | |
1746 | perf_event__handler_t process, | |
1747 | struct perf_evlist *evlist, | |
1748 | struct machine *machine) | |
1749 | { | |
1750 | union perf_event *ev; | |
1751 | struct perf_evsel *evsel; | |
1752 | size_t nr = 0, i = 0, sz, max_nr, n; | |
1753 | int err; | |
1754 | ||
1755 | pr_debug2("Synthesizing id index\n"); | |
1756 | ||
1757 | max_nr = (UINT16_MAX - sizeof(struct id_index_event)) / | |
1758 | sizeof(struct id_index_entry); | |
1759 | ||
cba9b847 | 1760 | evlist__for_each(evlist, evsel) |
3c659eed AH |
1761 | nr += evsel->ids; |
1762 | ||
1763 | n = nr > max_nr ? max_nr : nr; | |
1764 | sz = sizeof(struct id_index_event) + n * sizeof(struct id_index_entry); | |
1765 | ev = zalloc(sz); | |
1766 | if (!ev) | |
1767 | return -ENOMEM; | |
1768 | ||
1769 | ev->id_index.header.type = PERF_RECORD_ID_INDEX; | |
1770 | ev->id_index.header.size = sz; | |
1771 | ev->id_index.nr = n; | |
1772 | ||
cba9b847 | 1773 | evlist__for_each(evlist, evsel) { |
3c659eed AH |
1774 | u32 j; |
1775 | ||
1776 | for (j = 0; j < evsel->ids; j++) { | |
1777 | struct id_index_entry *e; | |
1778 | struct perf_sample_id *sid; | |
1779 | ||
1780 | if (i >= n) { | |
1781 | err = process(tool, ev, NULL, machine); | |
1782 | if (err) | |
1783 | goto out_err; | |
1784 | nr -= n; | |
1785 | i = 0; | |
1786 | } | |
1787 | ||
1788 | e = &ev->id_index.entries[i++]; | |
1789 | ||
1790 | e->id = evsel->id[j]; | |
1791 | ||
1792 | sid = perf_evlist__id2sid(evlist, e->id); | |
1793 | if (!sid) { | |
1794 | free(ev); | |
1795 | return -ENOENT; | |
1796 | } | |
1797 | ||
1798 | e->idx = sid->idx; | |
1799 | e->cpu = sid->cpu; | |
1800 | e->tid = sid->tid; | |
1801 | } | |
1802 | } | |
1803 | ||
1804 | sz = sizeof(struct id_index_event) + nr * sizeof(struct id_index_entry); | |
1805 | ev->id_index.header.size = sz; | |
1806 | ev->id_index.nr = nr; | |
1807 | ||
1808 | err = process(tool, ev, NULL, machine); | |
1809 | out_err: | |
1810 | free(ev); | |
1811 | ||
1812 | return err; | |
1813 | } |