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Commit | Line | Data |
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b8f46c5a XG |
1 | #define _FILE_OFFSET_BITS 64 |
2 | ||
94c744b6 ACM |
3 | #include <linux/kernel.h> |
4 | ||
ba21594c | 5 | #include <byteswap.h> |
94c744b6 ACM |
6 | #include <unistd.h> |
7 | #include <sys/types.h> | |
a41794cd | 8 | #include <sys/mman.h> |
94c744b6 | 9 | |
e248de33 ACM |
10 | #include "evlist.h" |
11 | #include "evsel.h" | |
94c744b6 | 12 | #include "session.h" |
45694aa7 | 13 | #include "tool.h" |
a328626b | 14 | #include "sort.h" |
94c744b6 | 15 | #include "util.h" |
5d67be97 | 16 | #include "cpumap.h" |
da378962 | 17 | #include "event-parse.h" |
0f6a3015 | 18 | #include "perf_regs.h" |
71ad0f5e | 19 | #include "unwind.h" |
7dbf4dcf | 20 | #include "vdso.h" |
94c744b6 ACM |
21 | |
22 | static int perf_session__open(struct perf_session *self, bool force) | |
23 | { | |
24 | struct stat input_stat; | |
25 | ||
8dc58101 TZ |
26 | if (!strcmp(self->filename, "-")) { |
27 | self->fd_pipe = true; | |
28 | self->fd = STDIN_FILENO; | |
29 | ||
a91e5431 | 30 | if (perf_session__read_header(self, self->fd) < 0) |
69996df4 | 31 | pr_err("incompatible file format (rerun with -v to learn more)"); |
8dc58101 TZ |
32 | |
33 | return 0; | |
34 | } | |
35 | ||
f887f301 | 36 | self->fd = open(self->filename, O_RDONLY); |
94c744b6 | 37 | if (self->fd < 0) { |
0f2c3de2 AI |
38 | int err = errno; |
39 | ||
40 | pr_err("failed to open %s: %s", self->filename, strerror(err)); | |
41 | if (err == ENOENT && !strcmp(self->filename, "perf.data")) | |
94c744b6 ACM |
42 | pr_err(" (try 'perf record' first)"); |
43 | pr_err("\n"); | |
44 | return -errno; | |
45 | } | |
46 | ||
47 | if (fstat(self->fd, &input_stat) < 0) | |
48 | goto out_close; | |
49 | ||
50 | if (!force && input_stat.st_uid && (input_stat.st_uid != geteuid())) { | |
51 | pr_err("file %s not owned by current user or root\n", | |
52 | self->filename); | |
53 | goto out_close; | |
54 | } | |
55 | ||
56 | if (!input_stat.st_size) { | |
57 | pr_info("zero-sized file (%s), nothing to do!\n", | |
58 | self->filename); | |
59 | goto out_close; | |
60 | } | |
61 | ||
a91e5431 | 62 | if (perf_session__read_header(self, self->fd) < 0) { |
69996df4 | 63 | pr_err("incompatible file format (rerun with -v to learn more)"); |
94c744b6 ACM |
64 | goto out_close; |
65 | } | |
66 | ||
c2a70653 ACM |
67 | if (!perf_evlist__valid_sample_type(self->evlist)) { |
68 | pr_err("non matching sample_type"); | |
69 | goto out_close; | |
70 | } | |
71 | ||
72 | if (!perf_evlist__valid_sample_id_all(self->evlist)) { | |
73 | pr_err("non matching sample_id_all"); | |
74 | goto out_close; | |
75 | } | |
76 | ||
94c744b6 ACM |
77 | self->size = input_stat.st_size; |
78 | return 0; | |
79 | ||
80 | out_close: | |
81 | close(self->fd); | |
82 | self->fd = -1; | |
83 | return -1; | |
84 | } | |
85 | ||
7b56cce2 | 86 | void perf_session__set_id_hdr_size(struct perf_session *session) |
9c90a61c | 87 | { |
7b56cce2 ACM |
88 | u16 id_hdr_size = perf_evlist__id_hdr_size(session->evlist); |
89 | ||
90 | session->host_machine.id_hdr_size = id_hdr_size; | |
91 | machines__set_id_hdr_size(&session->machines, id_hdr_size); | |
9c90a61c ACM |
92 | } |
93 | ||
a1645ce1 ZY |
94 | int perf_session__create_kernel_maps(struct perf_session *self) |
95 | { | |
d118f8ba | 96 | int ret = machine__create_kernel_maps(&self->host_machine); |
a1645ce1 | 97 | |
a1645ce1 | 98 | if (ret >= 0) |
d118f8ba | 99 | ret = machines__create_guest_kernel_maps(&self->machines); |
a1645ce1 ZY |
100 | return ret; |
101 | } | |
102 | ||
076c6e45 ACM |
103 | static void perf_session__destroy_kernel_maps(struct perf_session *self) |
104 | { | |
105 | machine__destroy_kernel_maps(&self->host_machine); | |
106 | machines__destroy_guest_kernel_maps(&self->machines); | |
107 | } | |
108 | ||
21ef97f0 IM |
109 | struct perf_session *perf_session__new(const char *filename, int mode, |
110 | bool force, bool repipe, | |
45694aa7 | 111 | struct perf_tool *tool) |
94c744b6 | 112 | { |
efad1415 RR |
113 | struct perf_session *self; |
114 | struct stat st; | |
115 | size_t len; | |
116 | ||
117 | if (!filename || !strlen(filename)) { | |
118 | if (!fstat(STDIN_FILENO, &st) && S_ISFIFO(st.st_mode)) | |
119 | filename = "-"; | |
120 | else | |
121 | filename = "perf.data"; | |
122 | } | |
123 | ||
124 | len = strlen(filename); | |
125 | self = zalloc(sizeof(*self) + len); | |
94c744b6 ACM |
126 | |
127 | if (self == NULL) | |
128 | goto out; | |
129 | ||
94c744b6 | 130 | memcpy(self->filename, filename, len); |
23346f21 | 131 | self->machines = RB_ROOT; |
454c407e | 132 | self->repipe = repipe; |
a1225dec | 133 | INIT_LIST_HEAD(&self->ordered_samples.samples); |
020bb75a | 134 | INIT_LIST_HEAD(&self->ordered_samples.sample_cache); |
5c891f38 | 135 | INIT_LIST_HEAD(&self->ordered_samples.to_free); |
1f626bc3 | 136 | machine__init(&self->host_machine, "", HOST_KERNEL_ID); |
4bf9ce1b | 137 | hists__init(&self->hists); |
94c744b6 | 138 | |
64abebf7 ACM |
139 | if (mode == O_RDONLY) { |
140 | if (perf_session__open(self, force) < 0) | |
141 | goto out_delete; | |
7b56cce2 | 142 | perf_session__set_id_hdr_size(self); |
64abebf7 ACM |
143 | } else if (mode == O_WRONLY) { |
144 | /* | |
145 | * In O_RDONLY mode this will be performed when reading the | |
8115d60c | 146 | * kernel MMAP event, in perf_event__process_mmap(). |
64abebf7 ACM |
147 | */ |
148 | if (perf_session__create_kernel_maps(self) < 0) | |
149 | goto out_delete; | |
150 | } | |
d549c769 | 151 | |
45694aa7 | 152 | if (tool && tool->ordering_requires_timestamps && |
5e562474 | 153 | tool->ordered_samples && !perf_evlist__sample_id_all(self->evlist)) { |
21ef97f0 | 154 | dump_printf("WARNING: No sample_id_all support, falling back to unordered processing\n"); |
45694aa7 | 155 | tool->ordered_samples = false; |
21ef97f0 IM |
156 | } |
157 | ||
94c744b6 ACM |
158 | out: |
159 | return self; | |
4aa65636 ACM |
160 | out_delete: |
161 | perf_session__delete(self); | |
162 | return NULL; | |
94c744b6 ACM |
163 | } |
164 | ||
b424eba2 | 165 | static void machine__delete_dead_threads(struct machine *machine) |
d65a458b ACM |
166 | { |
167 | struct thread *n, *t; | |
168 | ||
b424eba2 | 169 | list_for_each_entry_safe(t, n, &machine->dead_threads, node) { |
d65a458b ACM |
170 | list_del(&t->node); |
171 | thread__delete(t); | |
172 | } | |
173 | } | |
174 | ||
b424eba2 ACM |
175 | static void perf_session__delete_dead_threads(struct perf_session *session) |
176 | { | |
177 | machine__delete_dead_threads(&session->host_machine); | |
178 | } | |
179 | ||
180 | static void machine__delete_threads(struct machine *self) | |
d65a458b ACM |
181 | { |
182 | struct rb_node *nd = rb_first(&self->threads); | |
183 | ||
184 | while (nd) { | |
185 | struct thread *t = rb_entry(nd, struct thread, rb_node); | |
186 | ||
187 | rb_erase(&t->rb_node, &self->threads); | |
188 | nd = rb_next(nd); | |
189 | thread__delete(t); | |
190 | } | |
191 | } | |
192 | ||
b424eba2 ACM |
193 | static void perf_session__delete_threads(struct perf_session *session) |
194 | { | |
195 | machine__delete_threads(&session->host_machine); | |
196 | } | |
197 | ||
03cd2094 NK |
198 | static void perf_session_env__delete(struct perf_session_env *env) |
199 | { | |
200 | free(env->hostname); | |
201 | free(env->os_release); | |
202 | free(env->version); | |
203 | free(env->arch); | |
204 | free(env->cpu_desc); | |
205 | free(env->cpuid); | |
206 | ||
207 | free(env->cmdline); | |
208 | free(env->sibling_cores); | |
209 | free(env->sibling_threads); | |
210 | free(env->numa_nodes); | |
211 | free(env->pmu_mappings); | |
212 | } | |
213 | ||
94c744b6 ACM |
214 | void perf_session__delete(struct perf_session *self) |
215 | { | |
076c6e45 | 216 | perf_session__destroy_kernel_maps(self); |
d65a458b ACM |
217 | perf_session__delete_dead_threads(self); |
218 | perf_session__delete_threads(self); | |
03cd2094 | 219 | perf_session_env__delete(&self->header.env); |
d65a458b | 220 | machine__exit(&self->host_machine); |
94c744b6 ACM |
221 | close(self->fd); |
222 | free(self); | |
7dbf4dcf | 223 | vdso__exit(); |
94c744b6 | 224 | } |
a328626b | 225 | |
b424eba2 | 226 | void machine__remove_thread(struct machine *self, struct thread *th) |
720a3aeb | 227 | { |
70597f21 | 228 | self->last_match = NULL; |
720a3aeb ACM |
229 | rb_erase(&th->rb_node, &self->threads); |
230 | /* | |
231 | * We may have references to this thread, for instance in some hist_entry | |
232 | * instances, so just move them to a separate list. | |
233 | */ | |
234 | list_add_tail(&th->node, &self->dead_threads); | |
235 | } | |
236 | ||
a328626b ACM |
237 | static bool symbol__match_parent_regex(struct symbol *sym) |
238 | { | |
239 | if (sym->name && !regexec(&parent_regex, sym->name, 0, NULL, 0)) | |
240 | return 1; | |
241 | ||
242 | return 0; | |
243 | } | |
244 | ||
b5387528 RAV |
245 | static const u8 cpumodes[] = { |
246 | PERF_RECORD_MISC_USER, | |
247 | PERF_RECORD_MISC_KERNEL, | |
248 | PERF_RECORD_MISC_GUEST_USER, | |
249 | PERF_RECORD_MISC_GUEST_KERNEL | |
250 | }; | |
251 | #define NCPUMODES (sizeof(cpumodes)/sizeof(u8)) | |
252 | ||
253 | static void ip__resolve_ams(struct machine *self, struct thread *thread, | |
254 | struct addr_map_symbol *ams, | |
255 | u64 ip) | |
256 | { | |
257 | struct addr_location al; | |
258 | size_t i; | |
259 | u8 m; | |
260 | ||
261 | memset(&al, 0, sizeof(al)); | |
262 | ||
263 | for (i = 0; i < NCPUMODES; i++) { | |
264 | m = cpumodes[i]; | |
265 | /* | |
266 | * We cannot use the header.misc hint to determine whether a | |
267 | * branch stack address is user, kernel, guest, hypervisor. | |
268 | * Branches may straddle the kernel/user/hypervisor boundaries. | |
269 | * Thus, we have to try consecutively until we find a match | |
270 | * or else, the symbol is unknown | |
271 | */ | |
272 | thread__find_addr_location(thread, self, m, MAP__FUNCTION, | |
273 | ip, &al, NULL); | |
274 | if (al.sym) | |
275 | goto found; | |
276 | } | |
277 | found: | |
278 | ams->addr = ip; | |
a68c2c58 | 279 | ams->al_addr = al.addr; |
b5387528 RAV |
280 | ams->sym = al.sym; |
281 | ams->map = al.map; | |
282 | } | |
283 | ||
284 | struct branch_info *machine__resolve_bstack(struct machine *self, | |
285 | struct thread *thr, | |
286 | struct branch_stack *bs) | |
287 | { | |
288 | struct branch_info *bi; | |
289 | unsigned int i; | |
290 | ||
291 | bi = calloc(bs->nr, sizeof(struct branch_info)); | |
292 | if (!bi) | |
293 | return NULL; | |
294 | ||
295 | for (i = 0; i < bs->nr; i++) { | |
296 | ip__resolve_ams(self, thr, &bi[i].to, bs->entries[i].to); | |
297 | ip__resolve_ams(self, thr, &bi[i].from, bs->entries[i].from); | |
298 | bi[i].flags = bs->entries[i].flags; | |
299 | } | |
300 | return bi; | |
301 | } | |
302 | ||
71ad0f5e JO |
303 | static int machine__resolve_callchain_sample(struct machine *machine, |
304 | struct thread *thread, | |
305 | struct ip_callchain *chain, | |
306 | struct symbol **parent) | |
307 | ||
a328626b ACM |
308 | { |
309 | u8 cpumode = PERF_RECORD_MISC_USER; | |
a328626b | 310 | unsigned int i; |
1b3a0e95 | 311 | int err; |
a328626b | 312 | |
47260645 | 313 | callchain_cursor_reset(&callchain_cursor); |
a328626b | 314 | |
114067b6 NK |
315 | if (chain->nr > PERF_MAX_STACK_DEPTH) { |
316 | pr_warning("corrupted callchain. skipping...\n"); | |
317 | return 0; | |
318 | } | |
319 | ||
a328626b | 320 | for (i = 0; i < chain->nr; i++) { |
d797fdc5 | 321 | u64 ip; |
a328626b ACM |
322 | struct addr_location al; |
323 | ||
d797fdc5 SL |
324 | if (callchain_param.order == ORDER_CALLEE) |
325 | ip = chain->ips[i]; | |
326 | else | |
327 | ip = chain->ips[chain->nr - i - 1]; | |
328 | ||
a328626b ACM |
329 | if (ip >= PERF_CONTEXT_MAX) { |
330 | switch (ip) { | |
331 | case PERF_CONTEXT_HV: | |
71ad0f5e JO |
332 | cpumode = PERF_RECORD_MISC_HYPERVISOR; |
333 | break; | |
a328626b | 334 | case PERF_CONTEXT_KERNEL: |
71ad0f5e JO |
335 | cpumode = PERF_RECORD_MISC_KERNEL; |
336 | break; | |
a328626b | 337 | case PERF_CONTEXT_USER: |
71ad0f5e JO |
338 | cpumode = PERF_RECORD_MISC_USER; |
339 | break; | |
a328626b | 340 | default: |
114067b6 NK |
341 | pr_debug("invalid callchain context: " |
342 | "%"PRId64"\n", (s64) ip); | |
343 | /* | |
344 | * It seems the callchain is corrupted. | |
345 | * Discard all. | |
346 | */ | |
347 | callchain_cursor_reset(&callchain_cursor); | |
348 | return 0; | |
a328626b ACM |
349 | } |
350 | continue; | |
351 | } | |
352 | ||
a1645ce1 | 353 | al.filtered = false; |
71ad0f5e | 354 | thread__find_addr_location(thread, machine, cpumode, |
743eb868 | 355 | MAP__FUNCTION, ip, &al, NULL); |
a328626b ACM |
356 | if (al.sym != NULL) { |
357 | if (sort__has_parent && !*parent && | |
358 | symbol__match_parent_regex(al.sym)) | |
359 | *parent = al.sym; | |
d599db3f | 360 | if (!symbol_conf.use_callchain) |
a328626b | 361 | break; |
a328626b | 362 | } |
1b3a0e95 | 363 | |
47260645 | 364 | err = callchain_cursor_append(&callchain_cursor, |
1b3a0e95 FW |
365 | ip, al.map, al.sym); |
366 | if (err) | |
367 | return err; | |
a328626b ACM |
368 | } |
369 | ||
1b3a0e95 | 370 | return 0; |
a328626b | 371 | } |
06aae590 | 372 | |
71ad0f5e JO |
373 | static int unwind_entry(struct unwind_entry *entry, void *arg) |
374 | { | |
375 | struct callchain_cursor *cursor = arg; | |
376 | return callchain_cursor_append(cursor, entry->ip, | |
377 | entry->map, entry->sym); | |
378 | } | |
379 | ||
380 | int machine__resolve_callchain(struct machine *machine, | |
381 | struct perf_evsel *evsel, | |
382 | struct thread *thread, | |
383 | struct perf_sample *sample, | |
384 | struct symbol **parent) | |
385 | ||
386 | { | |
387 | int ret; | |
388 | ||
389 | callchain_cursor_reset(&callchain_cursor); | |
390 | ||
391 | ret = machine__resolve_callchain_sample(machine, thread, | |
392 | sample->callchain, parent); | |
393 | if (ret) | |
394 | return ret; | |
395 | ||
396 | /* Can we do dwarf post unwind? */ | |
397 | if (!((evsel->attr.sample_type & PERF_SAMPLE_REGS_USER) && | |
398 | (evsel->attr.sample_type & PERF_SAMPLE_STACK_USER))) | |
399 | return 0; | |
400 | ||
bdde3716 JO |
401 | /* Bail out if nothing was captured. */ |
402 | if ((!sample->user_regs.regs) || | |
403 | (!sample->user_stack.size)) | |
404 | return 0; | |
405 | ||
71ad0f5e JO |
406 | return unwind__get_entries(unwind_entry, &callchain_cursor, machine, |
407 | thread, evsel->attr.sample_regs_user, | |
408 | sample); | |
409 | ||
410 | } | |
411 | ||
1d037ca1 IT |
412 | static int process_event_synth_tracing_data_stub(union perf_event *event |
413 | __maybe_unused, | |
414 | struct perf_session *session | |
415 | __maybe_unused) | |
d20deb64 ACM |
416 | { |
417 | dump_printf(": unhandled!\n"); | |
418 | return 0; | |
419 | } | |
420 | ||
1d037ca1 IT |
421 | static int process_event_synth_attr_stub(union perf_event *event __maybe_unused, |
422 | struct perf_evlist **pevlist | |
423 | __maybe_unused) | |
10d0f086 ACM |
424 | { |
425 | dump_printf(": unhandled!\n"); | |
426 | return 0; | |
427 | } | |
428 | ||
1d037ca1 IT |
429 | static int process_event_sample_stub(struct perf_tool *tool __maybe_unused, |
430 | union perf_event *event __maybe_unused, | |
431 | struct perf_sample *sample __maybe_unused, | |
432 | struct perf_evsel *evsel __maybe_unused, | |
433 | struct machine *machine __maybe_unused) | |
9e69c210 ACM |
434 | { |
435 | dump_printf(": unhandled!\n"); | |
436 | return 0; | |
437 | } | |
438 | ||
1d037ca1 IT |
439 | static int process_event_stub(struct perf_tool *tool __maybe_unused, |
440 | union perf_event *event __maybe_unused, | |
441 | struct perf_sample *sample __maybe_unused, | |
442 | struct machine *machine __maybe_unused) | |
06aae590 ACM |
443 | { |
444 | dump_printf(": unhandled!\n"); | |
445 | return 0; | |
446 | } | |
447 | ||
1d037ca1 IT |
448 | static int process_finished_round_stub(struct perf_tool *tool __maybe_unused, |
449 | union perf_event *event __maybe_unused, | |
450 | struct perf_session *perf_session | |
451 | __maybe_unused) | |
743eb868 ACM |
452 | { |
453 | dump_printf(": unhandled!\n"); | |
454 | return 0; | |
455 | } | |
456 | ||
1d037ca1 IT |
457 | static int process_event_type_stub(struct perf_tool *tool __maybe_unused, |
458 | union perf_event *event __maybe_unused) | |
d6b17beb FW |
459 | { |
460 | dump_printf(": unhandled!\n"); | |
461 | return 0; | |
462 | } | |
463 | ||
45694aa7 | 464 | static int process_finished_round(struct perf_tool *tool, |
d20deb64 ACM |
465 | union perf_event *event, |
466 | struct perf_session *session); | |
d6b17beb | 467 | |
45694aa7 | 468 | static void perf_tool__fill_defaults(struct perf_tool *tool) |
06aae590 | 469 | { |
45694aa7 ACM |
470 | if (tool->sample == NULL) |
471 | tool->sample = process_event_sample_stub; | |
472 | if (tool->mmap == NULL) | |
473 | tool->mmap = process_event_stub; | |
474 | if (tool->comm == NULL) | |
475 | tool->comm = process_event_stub; | |
476 | if (tool->fork == NULL) | |
477 | tool->fork = process_event_stub; | |
478 | if (tool->exit == NULL) | |
479 | tool->exit = process_event_stub; | |
480 | if (tool->lost == NULL) | |
481 | tool->lost = perf_event__process_lost; | |
482 | if (tool->read == NULL) | |
483 | tool->read = process_event_sample_stub; | |
484 | if (tool->throttle == NULL) | |
485 | tool->throttle = process_event_stub; | |
486 | if (tool->unthrottle == NULL) | |
487 | tool->unthrottle = process_event_stub; | |
488 | if (tool->attr == NULL) | |
489 | tool->attr = process_event_synth_attr_stub; | |
490 | if (tool->event_type == NULL) | |
491 | tool->event_type = process_event_type_stub; | |
492 | if (tool->tracing_data == NULL) | |
493 | tool->tracing_data = process_event_synth_tracing_data_stub; | |
494 | if (tool->build_id == NULL) | |
495 | tool->build_id = process_finished_round_stub; | |
496 | if (tool->finished_round == NULL) { | |
497 | if (tool->ordered_samples) | |
498 | tool->finished_round = process_finished_round; | |
d6b17beb | 499 | else |
45694aa7 | 500 | tool->finished_round = process_finished_round_stub; |
d6b17beb | 501 | } |
06aae590 | 502 | } |
80c0120a DA |
503 | |
504 | void mem_bswap_32(void *src, int byte_size) | |
505 | { | |
506 | u32 *m = src; | |
507 | while (byte_size > 0) { | |
508 | *m = bswap_32(*m); | |
509 | byte_size -= sizeof(u32); | |
510 | ++m; | |
511 | } | |
512 | } | |
06aae590 | 513 | |
ba21594c ACM |
514 | void mem_bswap_64(void *src, int byte_size) |
515 | { | |
516 | u64 *m = src; | |
517 | ||
518 | while (byte_size > 0) { | |
519 | *m = bswap_64(*m); | |
520 | byte_size -= sizeof(u64); | |
521 | ++m; | |
522 | } | |
523 | } | |
524 | ||
268fb20f JO |
525 | static void swap_sample_id_all(union perf_event *event, void *data) |
526 | { | |
527 | void *end = (void *) event + event->header.size; | |
528 | int size = end - data; | |
529 | ||
530 | BUG_ON(size % sizeof(u64)); | |
531 | mem_bswap_64(data, size); | |
532 | } | |
533 | ||
534 | static void perf_event__all64_swap(union perf_event *event, | |
1d037ca1 | 535 | bool sample_id_all __maybe_unused) |
ba21594c | 536 | { |
8115d60c ACM |
537 | struct perf_event_header *hdr = &event->header; |
538 | mem_bswap_64(hdr + 1, event->header.size - sizeof(*hdr)); | |
ba21594c ACM |
539 | } |
540 | ||
268fb20f | 541 | static void perf_event__comm_swap(union perf_event *event, bool sample_id_all) |
ba21594c | 542 | { |
8115d60c ACM |
543 | event->comm.pid = bswap_32(event->comm.pid); |
544 | event->comm.tid = bswap_32(event->comm.tid); | |
268fb20f JO |
545 | |
546 | if (sample_id_all) { | |
547 | void *data = &event->comm.comm; | |
548 | ||
9ac3e487 | 549 | data += PERF_ALIGN(strlen(data) + 1, sizeof(u64)); |
268fb20f JO |
550 | swap_sample_id_all(event, data); |
551 | } | |
ba21594c ACM |
552 | } |
553 | ||
268fb20f JO |
554 | static void perf_event__mmap_swap(union perf_event *event, |
555 | bool sample_id_all) | |
ba21594c | 556 | { |
8115d60c ACM |
557 | event->mmap.pid = bswap_32(event->mmap.pid); |
558 | event->mmap.tid = bswap_32(event->mmap.tid); | |
559 | event->mmap.start = bswap_64(event->mmap.start); | |
560 | event->mmap.len = bswap_64(event->mmap.len); | |
561 | event->mmap.pgoff = bswap_64(event->mmap.pgoff); | |
268fb20f JO |
562 | |
563 | if (sample_id_all) { | |
564 | void *data = &event->mmap.filename; | |
565 | ||
9ac3e487 | 566 | data += PERF_ALIGN(strlen(data) + 1, sizeof(u64)); |
268fb20f JO |
567 | swap_sample_id_all(event, data); |
568 | } | |
ba21594c ACM |
569 | } |
570 | ||
268fb20f | 571 | static void perf_event__task_swap(union perf_event *event, bool sample_id_all) |
ba21594c | 572 | { |
8115d60c ACM |
573 | event->fork.pid = bswap_32(event->fork.pid); |
574 | event->fork.tid = bswap_32(event->fork.tid); | |
575 | event->fork.ppid = bswap_32(event->fork.ppid); | |
576 | event->fork.ptid = bswap_32(event->fork.ptid); | |
577 | event->fork.time = bswap_64(event->fork.time); | |
268fb20f JO |
578 | |
579 | if (sample_id_all) | |
580 | swap_sample_id_all(event, &event->fork + 1); | |
ba21594c ACM |
581 | } |
582 | ||
268fb20f | 583 | static void perf_event__read_swap(union perf_event *event, bool sample_id_all) |
ba21594c | 584 | { |
8115d60c ACM |
585 | event->read.pid = bswap_32(event->read.pid); |
586 | event->read.tid = bswap_32(event->read.tid); | |
587 | event->read.value = bswap_64(event->read.value); | |
588 | event->read.time_enabled = bswap_64(event->read.time_enabled); | |
589 | event->read.time_running = bswap_64(event->read.time_running); | |
590 | event->read.id = bswap_64(event->read.id); | |
268fb20f JO |
591 | |
592 | if (sample_id_all) | |
593 | swap_sample_id_all(event, &event->read + 1); | |
ba21594c ACM |
594 | } |
595 | ||
e108c66e JO |
596 | static u8 revbyte(u8 b) |
597 | { | |
598 | int rev = (b >> 4) | ((b & 0xf) << 4); | |
599 | rev = ((rev & 0xcc) >> 2) | ((rev & 0x33) << 2); | |
600 | rev = ((rev & 0xaa) >> 1) | ((rev & 0x55) << 1); | |
601 | return (u8) rev; | |
602 | } | |
603 | ||
604 | /* | |
605 | * XXX this is hack in attempt to carry flags bitfield | |
606 | * throught endian village. ABI says: | |
607 | * | |
608 | * Bit-fields are allocated from right to left (least to most significant) | |
609 | * on little-endian implementations and from left to right (most to least | |
610 | * significant) on big-endian implementations. | |
611 | * | |
612 | * The above seems to be byte specific, so we need to reverse each | |
613 | * byte of the bitfield. 'Internet' also says this might be implementation | |
614 | * specific and we probably need proper fix and carry perf_event_attr | |
615 | * bitfield flags in separate data file FEAT_ section. Thought this seems | |
616 | * to work for now. | |
617 | */ | |
618 | static void swap_bitfield(u8 *p, unsigned len) | |
619 | { | |
620 | unsigned i; | |
621 | ||
622 | for (i = 0; i < len; i++) { | |
623 | *p = revbyte(*p); | |
624 | p++; | |
625 | } | |
626 | } | |
627 | ||
eda3913b DA |
628 | /* exported for swapping attributes in file header */ |
629 | void perf_event__attr_swap(struct perf_event_attr *attr) | |
630 | { | |
631 | attr->type = bswap_32(attr->type); | |
632 | attr->size = bswap_32(attr->size); | |
633 | attr->config = bswap_64(attr->config); | |
634 | attr->sample_period = bswap_64(attr->sample_period); | |
635 | attr->sample_type = bswap_64(attr->sample_type); | |
636 | attr->read_format = bswap_64(attr->read_format); | |
637 | attr->wakeup_events = bswap_32(attr->wakeup_events); | |
638 | attr->bp_type = bswap_32(attr->bp_type); | |
639 | attr->bp_addr = bswap_64(attr->bp_addr); | |
640 | attr->bp_len = bswap_64(attr->bp_len); | |
e108c66e JO |
641 | |
642 | swap_bitfield((u8 *) (&attr->read_format + 1), sizeof(u64)); | |
eda3913b DA |
643 | } |
644 | ||
268fb20f | 645 | static void perf_event__hdr_attr_swap(union perf_event *event, |
1d037ca1 | 646 | bool sample_id_all __maybe_unused) |
2c46dbb5 TZ |
647 | { |
648 | size_t size; | |
649 | ||
eda3913b | 650 | perf_event__attr_swap(&event->attr.attr); |
2c46dbb5 | 651 | |
8115d60c ACM |
652 | size = event->header.size; |
653 | size -= (void *)&event->attr.id - (void *)event; | |
654 | mem_bswap_64(event->attr.id, size); | |
2c46dbb5 TZ |
655 | } |
656 | ||
268fb20f | 657 | static void perf_event__event_type_swap(union perf_event *event, |
1d037ca1 | 658 | bool sample_id_all __maybe_unused) |
cd19a035 | 659 | { |
8115d60c ACM |
660 | event->event_type.event_type.event_id = |
661 | bswap_64(event->event_type.event_type.event_id); | |
cd19a035 TZ |
662 | } |
663 | ||
268fb20f | 664 | static void perf_event__tracing_data_swap(union perf_event *event, |
1d037ca1 | 665 | bool sample_id_all __maybe_unused) |
9215545e | 666 | { |
8115d60c | 667 | event->tracing_data.size = bswap_32(event->tracing_data.size); |
9215545e TZ |
668 | } |
669 | ||
268fb20f JO |
670 | typedef void (*perf_event__swap_op)(union perf_event *event, |
671 | bool sample_id_all); | |
ba21594c | 672 | |
8115d60c ACM |
673 | static perf_event__swap_op perf_event__swap_ops[] = { |
674 | [PERF_RECORD_MMAP] = perf_event__mmap_swap, | |
675 | [PERF_RECORD_COMM] = perf_event__comm_swap, | |
676 | [PERF_RECORD_FORK] = perf_event__task_swap, | |
677 | [PERF_RECORD_EXIT] = perf_event__task_swap, | |
678 | [PERF_RECORD_LOST] = perf_event__all64_swap, | |
679 | [PERF_RECORD_READ] = perf_event__read_swap, | |
680 | [PERF_RECORD_SAMPLE] = perf_event__all64_swap, | |
eda3913b | 681 | [PERF_RECORD_HEADER_ATTR] = perf_event__hdr_attr_swap, |
8115d60c ACM |
682 | [PERF_RECORD_HEADER_EVENT_TYPE] = perf_event__event_type_swap, |
683 | [PERF_RECORD_HEADER_TRACING_DATA] = perf_event__tracing_data_swap, | |
684 | [PERF_RECORD_HEADER_BUILD_ID] = NULL, | |
685 | [PERF_RECORD_HEADER_MAX] = NULL, | |
ba21594c ACM |
686 | }; |
687 | ||
c61e52ee FW |
688 | struct sample_queue { |
689 | u64 timestamp; | |
e4c2df13 | 690 | u64 file_offset; |
8115d60c | 691 | union perf_event *event; |
c61e52ee FW |
692 | struct list_head list; |
693 | }; | |
694 | ||
020bb75a TG |
695 | static void perf_session_free_sample_buffers(struct perf_session *session) |
696 | { | |
697 | struct ordered_samples *os = &session->ordered_samples; | |
698 | ||
5c891f38 | 699 | while (!list_empty(&os->to_free)) { |
020bb75a TG |
700 | struct sample_queue *sq; |
701 | ||
5c891f38 | 702 | sq = list_entry(os->to_free.next, struct sample_queue, list); |
020bb75a TG |
703 | list_del(&sq->list); |
704 | free(sq); | |
705 | } | |
706 | } | |
707 | ||
cbf41645 | 708 | static int perf_session_deliver_event(struct perf_session *session, |
8115d60c | 709 | union perf_event *event, |
8d50e5b4 | 710 | struct perf_sample *sample, |
45694aa7 | 711 | struct perf_tool *tool, |
f74725dc | 712 | u64 file_offset); |
cbf41645 | 713 | |
d25380cd | 714 | static int flush_sample_queue(struct perf_session *s, |
45694aa7 | 715 | struct perf_tool *tool) |
c61e52ee | 716 | { |
a1225dec TG |
717 | struct ordered_samples *os = &s->ordered_samples; |
718 | struct list_head *head = &os->samples; | |
c61e52ee | 719 | struct sample_queue *tmp, *iter; |
8d50e5b4 | 720 | struct perf_sample sample; |
a1225dec TG |
721 | u64 limit = os->next_flush; |
722 | u64 last_ts = os->last_sample ? os->last_sample->timestamp : 0ULL; | |
88660563 | 723 | unsigned idx = 0, progress_next = os->nr_samples / 16; |
5538beca | 724 | int ret; |
c61e52ee | 725 | |
45694aa7 | 726 | if (!tool->ordered_samples || !limit) |
d25380cd | 727 | return 0; |
c61e52ee FW |
728 | |
729 | list_for_each_entry_safe(iter, tmp, head, list) { | |
730 | if (iter->timestamp > limit) | |
a1225dec | 731 | break; |
c61e52ee | 732 | |
0807d2d8 | 733 | ret = perf_evlist__parse_sample(s->evlist, iter->event, &sample); |
5538beca FW |
734 | if (ret) |
735 | pr_err("Can't parse sample, err = %d\n", ret); | |
d25380cd DA |
736 | else { |
737 | ret = perf_session_deliver_event(s, iter->event, &sample, tool, | |
738 | iter->file_offset); | |
739 | if (ret) | |
740 | return ret; | |
741 | } | |
c61e52ee | 742 | |
a1225dec | 743 | os->last_flush = iter->timestamp; |
c61e52ee | 744 | list_del(&iter->list); |
020bb75a | 745 | list_add(&iter->list, &os->sample_cache); |
88660563 ACM |
746 | if (++idx >= progress_next) { |
747 | progress_next += os->nr_samples / 16; | |
748 | ui_progress__update(idx, os->nr_samples, | |
749 | "Processing time ordered events..."); | |
750 | } | |
c61e52ee | 751 | } |
a1225dec TG |
752 | |
753 | if (list_empty(head)) { | |
754 | os->last_sample = NULL; | |
755 | } else if (last_ts <= limit) { | |
756 | os->last_sample = | |
757 | list_entry(head->prev, struct sample_queue, list); | |
758 | } | |
88660563 ACM |
759 | |
760 | os->nr_samples = 0; | |
d25380cd DA |
761 | |
762 | return 0; | |
c61e52ee FW |
763 | } |
764 | ||
d6b17beb FW |
765 | /* |
766 | * When perf record finishes a pass on every buffers, it records this pseudo | |
767 | * event. | |
768 | * We record the max timestamp t found in the pass n. | |
769 | * Assuming these timestamps are monotonic across cpus, we know that if | |
770 | * a buffer still has events with timestamps below t, they will be all | |
771 | * available and then read in the pass n + 1. | |
772 | * Hence when we start to read the pass n + 2, we can safely flush every | |
773 | * events with timestamps below t. | |
774 | * | |
775 | * ============ PASS n ================= | |
776 | * CPU 0 | CPU 1 | |
777 | * | | |
778 | * cnt1 timestamps | cnt2 timestamps | |
779 | * 1 | 2 | |
780 | * 2 | 3 | |
781 | * - | 4 <--- max recorded | |
782 | * | |
783 | * ============ PASS n + 1 ============== | |
784 | * CPU 0 | CPU 1 | |
785 | * | | |
786 | * cnt1 timestamps | cnt2 timestamps | |
787 | * 3 | 5 | |
788 | * 4 | 6 | |
789 | * 5 | 7 <---- max recorded | |
790 | * | |
791 | * Flush every events below timestamp 4 | |
792 | * | |
793 | * ============ PASS n + 2 ============== | |
794 | * CPU 0 | CPU 1 | |
795 | * | | |
796 | * cnt1 timestamps | cnt2 timestamps | |
797 | * 6 | 8 | |
798 | * 7 | 9 | |
799 | * - | 10 | |
800 | * | |
801 | * Flush every events below timestamp 7 | |
802 | * etc... | |
803 | */ | |
45694aa7 | 804 | static int process_finished_round(struct perf_tool *tool, |
1d037ca1 | 805 | union perf_event *event __maybe_unused, |
d20deb64 | 806 | struct perf_session *session) |
d6b17beb | 807 | { |
d25380cd DA |
808 | int ret = flush_sample_queue(session, tool); |
809 | if (!ret) | |
810 | session->ordered_samples.next_flush = session->ordered_samples.max_timestamp; | |
d6b17beb | 811 | |
d25380cd | 812 | return ret; |
d6b17beb FW |
813 | } |
814 | ||
c61e52ee | 815 | /* The queue is ordered by time */ |
cbf41645 | 816 | static void __queue_event(struct sample_queue *new, struct perf_session *s) |
c61e52ee | 817 | { |
a1225dec TG |
818 | struct ordered_samples *os = &s->ordered_samples; |
819 | struct sample_queue *sample = os->last_sample; | |
820 | u64 timestamp = new->timestamp; | |
821 | struct list_head *p; | |
c61e52ee | 822 | |
88660563 | 823 | ++os->nr_samples; |
a1225dec | 824 | os->last_sample = new; |
c61e52ee | 825 | |
a1225dec TG |
826 | if (!sample) { |
827 | list_add(&new->list, &os->samples); | |
828 | os->max_timestamp = timestamp; | |
c61e52ee FW |
829 | return; |
830 | } | |
831 | ||
832 | /* | |
a1225dec TG |
833 | * last_sample might point to some random place in the list as it's |
834 | * the last queued event. We expect that the new event is close to | |
835 | * this. | |
c61e52ee | 836 | */ |
a1225dec TG |
837 | if (sample->timestamp <= timestamp) { |
838 | while (sample->timestamp <= timestamp) { | |
839 | p = sample->list.next; | |
840 | if (p == &os->samples) { | |
841 | list_add_tail(&new->list, &os->samples); | |
842 | os->max_timestamp = timestamp; | |
843 | return; | |
844 | } | |
845 | sample = list_entry(p, struct sample_queue, list); | |
846 | } | |
847 | list_add_tail(&new->list, &sample->list); | |
848 | } else { | |
849 | while (sample->timestamp > timestamp) { | |
850 | p = sample->list.prev; | |
851 | if (p == &os->samples) { | |
852 | list_add(&new->list, &os->samples); | |
853 | return; | |
854 | } | |
855 | sample = list_entry(p, struct sample_queue, list); | |
856 | } | |
857 | list_add(&new->list, &sample->list); | |
858 | } | |
c61e52ee FW |
859 | } |
860 | ||
5c891f38 TG |
861 | #define MAX_SAMPLE_BUFFER (64 * 1024 / sizeof(struct sample_queue)) |
862 | ||
8115d60c | 863 | static int perf_session_queue_event(struct perf_session *s, union perf_event *event, |
8d50e5b4 | 864 | struct perf_sample *sample, u64 file_offset) |
c61e52ee | 865 | { |
5c891f38 TG |
866 | struct ordered_samples *os = &s->ordered_samples; |
867 | struct list_head *sc = &os->sample_cache; | |
8d50e5b4 | 868 | u64 timestamp = sample->time; |
c61e52ee | 869 | struct sample_queue *new; |
c61e52ee | 870 | |
79a14c1f | 871 | if (!timestamp || timestamp == ~0ULL) |
cbf41645 TG |
872 | return -ETIME; |
873 | ||
c61e52ee FW |
874 | if (timestamp < s->ordered_samples.last_flush) { |
875 | printf("Warning: Timestamp below last timeslice flush\n"); | |
876 | return -EINVAL; | |
877 | } | |
878 | ||
020bb75a TG |
879 | if (!list_empty(sc)) { |
880 | new = list_entry(sc->next, struct sample_queue, list); | |
881 | list_del(&new->list); | |
5c891f38 TG |
882 | } else if (os->sample_buffer) { |
883 | new = os->sample_buffer + os->sample_buffer_idx; | |
884 | if (++os->sample_buffer_idx == MAX_SAMPLE_BUFFER) | |
885 | os->sample_buffer = NULL; | |
020bb75a | 886 | } else { |
5c891f38 TG |
887 | os->sample_buffer = malloc(MAX_SAMPLE_BUFFER * sizeof(*new)); |
888 | if (!os->sample_buffer) | |
020bb75a | 889 | return -ENOMEM; |
5c891f38 TG |
890 | list_add(&os->sample_buffer->list, &os->to_free); |
891 | os->sample_buffer_idx = 2; | |
892 | new = os->sample_buffer + 1; | |
020bb75a | 893 | } |
c61e52ee FW |
894 | |
895 | new->timestamp = timestamp; | |
e4c2df13 | 896 | new->file_offset = file_offset; |
fe174207 | 897 | new->event = event; |
c61e52ee | 898 | |
cbf41645 | 899 | __queue_event(new, s); |
640c03ce | 900 | |
640c03ce ACM |
901 | return 0; |
902 | } | |
c61e52ee | 903 | |
8d50e5b4 | 904 | static void callchain__printf(struct perf_sample *sample) |
640c03ce ACM |
905 | { |
906 | unsigned int i; | |
c61e52ee | 907 | |
9486aa38 | 908 | printf("... chain: nr:%" PRIu64 "\n", sample->callchain->nr); |
640c03ce ACM |
909 | |
910 | for (i = 0; i < sample->callchain->nr; i++) | |
9486aa38 ACM |
911 | printf("..... %2d: %016" PRIx64 "\n", |
912 | i, sample->callchain->ips[i]); | |
c61e52ee FW |
913 | } |
914 | ||
b5387528 RAV |
915 | static void branch_stack__printf(struct perf_sample *sample) |
916 | { | |
917 | uint64_t i; | |
918 | ||
919 | printf("... branch stack: nr:%" PRIu64 "\n", sample->branch_stack->nr); | |
920 | ||
921 | for (i = 0; i < sample->branch_stack->nr; i++) | |
922 | printf("..... %2"PRIu64": %016" PRIx64 " -> %016" PRIx64 "\n", | |
923 | i, sample->branch_stack->entries[i].from, | |
924 | sample->branch_stack->entries[i].to); | |
925 | } | |
926 | ||
0f6a3015 JO |
927 | static void regs_dump__printf(u64 mask, u64 *regs) |
928 | { | |
929 | unsigned rid, i = 0; | |
930 | ||
931 | for_each_set_bit(rid, (unsigned long *) &mask, sizeof(mask) * 8) { | |
932 | u64 val = regs[i++]; | |
933 | ||
934 | printf(".... %-5s 0x%" PRIx64 "\n", | |
935 | perf_reg_name(rid), val); | |
936 | } | |
937 | } | |
938 | ||
939 | static void regs_user__printf(struct perf_sample *sample, u64 mask) | |
940 | { | |
941 | struct regs_dump *user_regs = &sample->user_regs; | |
942 | ||
943 | if (user_regs->regs) { | |
944 | printf("... user regs: mask 0x%" PRIx64 "\n", mask); | |
945 | regs_dump__printf(mask, user_regs->regs); | |
946 | } | |
947 | } | |
948 | ||
949 | static void stack_user__printf(struct stack_dump *dump) | |
950 | { | |
951 | printf("... ustack: size %" PRIu64 ", offset 0x%x\n", | |
952 | dump->size, dump->offset); | |
953 | } | |
954 | ||
9c90a61c | 955 | static void perf_session__print_tstamp(struct perf_session *session, |
8115d60c | 956 | union perf_event *event, |
8d50e5b4 | 957 | struct perf_sample *sample) |
9c90a61c | 958 | { |
7f3be652 ACM |
959 | u64 sample_type = perf_evlist__sample_type(session->evlist); |
960 | ||
9c90a61c | 961 | if (event->header.type != PERF_RECORD_SAMPLE && |
5e562474 | 962 | !perf_evlist__sample_id_all(session->evlist)) { |
9c90a61c ACM |
963 | fputs("-1 -1 ", stdout); |
964 | return; | |
965 | } | |
966 | ||
7f3be652 | 967 | if ((sample_type & PERF_SAMPLE_CPU)) |
9c90a61c ACM |
968 | printf("%u ", sample->cpu); |
969 | ||
7f3be652 | 970 | if (sample_type & PERF_SAMPLE_TIME) |
9486aa38 | 971 | printf("%" PRIu64 " ", sample->time); |
9c90a61c ACM |
972 | } |
973 | ||
8115d60c | 974 | static void dump_event(struct perf_session *session, union perf_event *event, |
8d50e5b4 | 975 | u64 file_offset, struct perf_sample *sample) |
9aefcab0 TG |
976 | { |
977 | if (!dump_trace) | |
978 | return; | |
979 | ||
9486aa38 ACM |
980 | printf("\n%#" PRIx64 " [%#x]: event: %d\n", |
981 | file_offset, event->header.size, event->header.type); | |
9aefcab0 TG |
982 | |
983 | trace_event(event); | |
984 | ||
985 | if (sample) | |
986 | perf_session__print_tstamp(session, event, sample); | |
987 | ||
9486aa38 | 988 | printf("%#" PRIx64 " [%#x]: PERF_RECORD_%s", file_offset, |
8115d60c | 989 | event->header.size, perf_event__name(event->header.type)); |
9aefcab0 TG |
990 | } |
991 | ||
0f6a3015 | 992 | static void dump_sample(struct perf_evsel *evsel, union perf_event *event, |
8d50e5b4 | 993 | struct perf_sample *sample) |
9aefcab0 | 994 | { |
7f3be652 ACM |
995 | u64 sample_type; |
996 | ||
ddbc24b7 ACM |
997 | if (!dump_trace) |
998 | return; | |
999 | ||
7cec0922 | 1000 | printf("(IP, %d): %d/%d: %#" PRIx64 " period: %" PRIu64 " addr: %#" PRIx64 "\n", |
9486aa38 | 1001 | event->header.misc, sample->pid, sample->tid, sample->ip, |
7cec0922 | 1002 | sample->period, sample->addr); |
9aefcab0 | 1003 | |
0f6a3015 | 1004 | sample_type = evsel->attr.sample_type; |
7f3be652 ACM |
1005 | |
1006 | if (sample_type & PERF_SAMPLE_CALLCHAIN) | |
ddbc24b7 | 1007 | callchain__printf(sample); |
b5387528 | 1008 | |
7f3be652 | 1009 | if (sample_type & PERF_SAMPLE_BRANCH_STACK) |
b5387528 | 1010 | branch_stack__printf(sample); |
0f6a3015 JO |
1011 | |
1012 | if (sample_type & PERF_SAMPLE_REGS_USER) | |
1013 | regs_user__printf(sample, evsel->attr.sample_regs_user); | |
1014 | ||
1015 | if (sample_type & PERF_SAMPLE_STACK_USER) | |
1016 | stack_user__printf(&sample->user_stack); | |
9aefcab0 TG |
1017 | } |
1018 | ||
743eb868 ACM |
1019 | static struct machine * |
1020 | perf_session__find_machine_for_cpumode(struct perf_session *session, | |
1021 | union perf_event *event) | |
1022 | { | |
1023 | const u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; | |
1024 | ||
7c0f4a41 DA |
1025 | if (perf_guest && |
1026 | ((cpumode == PERF_RECORD_MISC_GUEST_KERNEL) || | |
1027 | (cpumode == PERF_RECORD_MISC_GUEST_USER))) { | |
7fb0a5ee ND |
1028 | u32 pid; |
1029 | ||
1030 | if (event->header.type == PERF_RECORD_MMAP) | |
1031 | pid = event->mmap.pid; | |
1032 | else | |
1033 | pid = event->ip.pid; | |
1034 | ||
207b5792 | 1035 | return perf_session__findnew_machine(session, pid); |
7fb0a5ee | 1036 | } |
743eb868 ACM |
1037 | |
1038 | return perf_session__find_host_machine(session); | |
1039 | } | |
1040 | ||
cbf41645 | 1041 | static int perf_session_deliver_event(struct perf_session *session, |
8115d60c | 1042 | union perf_event *event, |
8d50e5b4 | 1043 | struct perf_sample *sample, |
45694aa7 | 1044 | struct perf_tool *tool, |
532e7269 | 1045 | u64 file_offset) |
cbf41645 | 1046 | { |
9e69c210 | 1047 | struct perf_evsel *evsel; |
743eb868 | 1048 | struct machine *machine; |
9e69c210 | 1049 | |
532e7269 TG |
1050 | dump_event(session, event, file_offset, sample); |
1051 | ||
7b27509f ACM |
1052 | evsel = perf_evlist__id2evsel(session->evlist, sample->id); |
1053 | if (evsel != NULL && event->header.type != PERF_RECORD_SAMPLE) { | |
1054 | /* | |
1055 | * XXX We're leaving PERF_RECORD_SAMPLE unnacounted here | |
1056 | * because the tools right now may apply filters, discarding | |
1057 | * some of the samples. For consistency, in the future we | |
1058 | * should have something like nr_filtered_samples and remove | |
1059 | * the sample->period from total_sample_period, etc, KISS for | |
1060 | * now tho. | |
1061 | * | |
1062 | * Also testing against NULL allows us to handle files without | |
1063 | * attr.sample_id_all and/or without PERF_SAMPLE_ID. In the | |
1064 | * future probably it'll be a good idea to restrict event | |
1065 | * processing via perf_session to files with both set. | |
1066 | */ | |
1067 | hists__inc_nr_events(&evsel->hists, event->header.type); | |
1068 | } | |
1069 | ||
743eb868 ACM |
1070 | machine = perf_session__find_machine_for_cpumode(session, event); |
1071 | ||
cbf41645 TG |
1072 | switch (event->header.type) { |
1073 | case PERF_RECORD_SAMPLE: | |
0f6a3015 | 1074 | dump_sample(evsel, event, sample); |
9e69c210 ACM |
1075 | if (evsel == NULL) { |
1076 | ++session->hists.stats.nr_unknown_id; | |
6782206b | 1077 | return 0; |
9e69c210 | 1078 | } |
0c095715 JR |
1079 | if (machine == NULL) { |
1080 | ++session->hists.stats.nr_unprocessable_samples; | |
6782206b | 1081 | return 0; |
0c095715 | 1082 | } |
45694aa7 | 1083 | return tool->sample(tool, event, sample, evsel, machine); |
cbf41645 | 1084 | case PERF_RECORD_MMAP: |
45694aa7 | 1085 | return tool->mmap(tool, event, sample, machine); |
cbf41645 | 1086 | case PERF_RECORD_COMM: |
45694aa7 | 1087 | return tool->comm(tool, event, sample, machine); |
cbf41645 | 1088 | case PERF_RECORD_FORK: |
45694aa7 | 1089 | return tool->fork(tool, event, sample, machine); |
cbf41645 | 1090 | case PERF_RECORD_EXIT: |
45694aa7 | 1091 | return tool->exit(tool, event, sample, machine); |
cbf41645 | 1092 | case PERF_RECORD_LOST: |
45694aa7 | 1093 | if (tool->lost == perf_event__process_lost) |
743eb868 | 1094 | session->hists.stats.total_lost += event->lost.lost; |
45694aa7 | 1095 | return tool->lost(tool, event, sample, machine); |
cbf41645 | 1096 | case PERF_RECORD_READ: |
45694aa7 | 1097 | return tool->read(tool, event, sample, evsel, machine); |
cbf41645 | 1098 | case PERF_RECORD_THROTTLE: |
45694aa7 | 1099 | return tool->throttle(tool, event, sample, machine); |
cbf41645 | 1100 | case PERF_RECORD_UNTHROTTLE: |
45694aa7 | 1101 | return tool->unthrottle(tool, event, sample, machine); |
cbf41645 TG |
1102 | default: |
1103 | ++session->hists.stats.nr_unknown_events; | |
1104 | return -1; | |
1105 | } | |
1106 | } | |
1107 | ||
3dfc2c0a | 1108 | static int perf_session__preprocess_sample(struct perf_session *session, |
8115d60c | 1109 | union perf_event *event, struct perf_sample *sample) |
3dfc2c0a TG |
1110 | { |
1111 | if (event->header.type != PERF_RECORD_SAMPLE || | |
7f3be652 | 1112 | !(perf_evlist__sample_type(session->evlist) & PERF_SAMPLE_CALLCHAIN)) |
3dfc2c0a TG |
1113 | return 0; |
1114 | ||
1115 | if (!ip_callchain__valid(sample->callchain, event)) { | |
1116 | pr_debug("call-chain problem with event, skipping it.\n"); | |
1117 | ++session->hists.stats.nr_invalid_chains; | |
1118 | session->hists.stats.total_invalid_chains += sample->period; | |
1119 | return -EINVAL; | |
1120 | } | |
1121 | return 0; | |
1122 | } | |
1123 | ||
8115d60c | 1124 | static int perf_session__process_user_event(struct perf_session *session, union perf_event *event, |
45694aa7 | 1125 | struct perf_tool *tool, u64 file_offset) |
06aae590 | 1126 | { |
10d0f086 ACM |
1127 | int err; |
1128 | ||
ba74f064 | 1129 | dump_event(session, event, file_offset, NULL); |
06aae590 | 1130 | |
cbf41645 | 1131 | /* These events are processed right away */ |
06aae590 | 1132 | switch (event->header.type) { |
2c46dbb5 | 1133 | case PERF_RECORD_HEADER_ATTR: |
45694aa7 | 1134 | err = tool->attr(event, &session->evlist); |
10d0f086 | 1135 | if (err == 0) |
7b56cce2 | 1136 | perf_session__set_id_hdr_size(session); |
10d0f086 | 1137 | return err; |
cd19a035 | 1138 | case PERF_RECORD_HEADER_EVENT_TYPE: |
45694aa7 | 1139 | return tool->event_type(tool, event); |
9215545e TZ |
1140 | case PERF_RECORD_HEADER_TRACING_DATA: |
1141 | /* setup for reading amidst mmap */ | |
cbf41645 | 1142 | lseek(session->fd, file_offset, SEEK_SET); |
45694aa7 | 1143 | return tool->tracing_data(event, session); |
c7929e47 | 1144 | case PERF_RECORD_HEADER_BUILD_ID: |
45694aa7 | 1145 | return tool->build_id(tool, event, session); |
d6b17beb | 1146 | case PERF_RECORD_FINISHED_ROUND: |
45694aa7 | 1147 | return tool->finished_round(tool, event, session); |
06aae590 | 1148 | default: |
ba74f064 | 1149 | return -EINVAL; |
06aae590 | 1150 | } |
ba74f064 TG |
1151 | } |
1152 | ||
268fb20f JO |
1153 | static void event_swap(union perf_event *event, bool sample_id_all) |
1154 | { | |
1155 | perf_event__swap_op swap; | |
1156 | ||
1157 | swap = perf_event__swap_ops[event->header.type]; | |
1158 | if (swap) | |
1159 | swap(event, sample_id_all); | |
1160 | } | |
1161 | ||
ba74f064 | 1162 | static int perf_session__process_event(struct perf_session *session, |
8115d60c | 1163 | union perf_event *event, |
45694aa7 | 1164 | struct perf_tool *tool, |
ba74f064 TG |
1165 | u64 file_offset) |
1166 | { | |
8d50e5b4 | 1167 | struct perf_sample sample; |
ba74f064 TG |
1168 | int ret; |
1169 | ||
268fb20f | 1170 | if (session->header.needs_swap) |
5e562474 | 1171 | event_swap(event, perf_evlist__sample_id_all(session->evlist)); |
ba74f064 TG |
1172 | |
1173 | if (event->header.type >= PERF_RECORD_HEADER_MAX) | |
1174 | return -EINVAL; | |
1175 | ||
1176 | hists__inc_nr_events(&session->hists, event->header.type); | |
1177 | ||
1178 | if (event->header.type >= PERF_RECORD_USER_TYPE_START) | |
45694aa7 | 1179 | return perf_session__process_user_event(session, event, tool, file_offset); |
cbf41645 | 1180 | |
3dfc2c0a TG |
1181 | /* |
1182 | * For all kernel events we get the sample data | |
1183 | */ | |
0807d2d8 | 1184 | ret = perf_evlist__parse_sample(session->evlist, event, &sample); |
5538beca FW |
1185 | if (ret) |
1186 | return ret; | |
3dfc2c0a TG |
1187 | |
1188 | /* Preprocess sample records - precheck callchains */ | |
1189 | if (perf_session__preprocess_sample(session, event, &sample)) | |
1190 | return 0; | |
1191 | ||
45694aa7 | 1192 | if (tool->ordered_samples) { |
e4c2df13 TG |
1193 | ret = perf_session_queue_event(session, event, &sample, |
1194 | file_offset); | |
cbf41645 TG |
1195 | if (ret != -ETIME) |
1196 | return ret; | |
1197 | } | |
1198 | ||
45694aa7 | 1199 | return perf_session_deliver_event(session, event, &sample, tool, |
f74725dc | 1200 | file_offset); |
06aae590 ACM |
1201 | } |
1202 | ||
ba21594c ACM |
1203 | void perf_event_header__bswap(struct perf_event_header *self) |
1204 | { | |
1205 | self->type = bswap_32(self->type); | |
1206 | self->misc = bswap_16(self->misc); | |
1207 | self->size = bswap_16(self->size); | |
1208 | } | |
1209 | ||
b424eba2 ACM |
1210 | struct thread *perf_session__findnew(struct perf_session *session, pid_t pid) |
1211 | { | |
1212 | return machine__findnew_thread(&session->host_machine, pid); | |
1213 | } | |
1214 | ||
06aae590 ACM |
1215 | static struct thread *perf_session__register_idle_thread(struct perf_session *self) |
1216 | { | |
1217 | struct thread *thread = perf_session__findnew(self, 0); | |
1218 | ||
1219 | if (thread == NULL || thread__set_comm(thread, "swapper")) { | |
1220 | pr_err("problem inserting idle task.\n"); | |
1221 | thread = NULL; | |
1222 | } | |
1223 | ||
1224 | return thread; | |
1225 | } | |
1226 | ||
11095994 | 1227 | static void perf_session__warn_about_errors(const struct perf_session *session, |
45694aa7 | 1228 | const struct perf_tool *tool) |
11095994 | 1229 | { |
45694aa7 | 1230 | if (tool->lost == perf_event__process_lost && |
7b27509f ACM |
1231 | session->hists.stats.nr_events[PERF_RECORD_LOST] != 0) { |
1232 | ui__warning("Processed %d events and lost %d chunks!\n\n" | |
1233 | "Check IO/CPU overload!\n\n", | |
1234 | session->hists.stats.nr_events[0], | |
1235 | session->hists.stats.nr_events[PERF_RECORD_LOST]); | |
11095994 ACM |
1236 | } |
1237 | ||
1238 | if (session->hists.stats.nr_unknown_events != 0) { | |
1239 | ui__warning("Found %u unknown events!\n\n" | |
1240 | "Is this an older tool processing a perf.data " | |
1241 | "file generated by a more recent tool?\n\n" | |
1242 | "If that is not the case, consider " | |
1243 | "reporting to linux-kernel@vger.kernel.org.\n\n", | |
1244 | session->hists.stats.nr_unknown_events); | |
1245 | } | |
1246 | ||
9e69c210 ACM |
1247 | if (session->hists.stats.nr_unknown_id != 0) { |
1248 | ui__warning("%u samples with id not present in the header\n", | |
1249 | session->hists.stats.nr_unknown_id); | |
1250 | } | |
1251 | ||
11095994 ACM |
1252 | if (session->hists.stats.nr_invalid_chains != 0) { |
1253 | ui__warning("Found invalid callchains!\n\n" | |
1254 | "%u out of %u events were discarded for this reason.\n\n" | |
1255 | "Consider reporting to linux-kernel@vger.kernel.org.\n\n", | |
1256 | session->hists.stats.nr_invalid_chains, | |
1257 | session->hists.stats.nr_events[PERF_RECORD_SAMPLE]); | |
1258 | } | |
0c095715 JR |
1259 | |
1260 | if (session->hists.stats.nr_unprocessable_samples != 0) { | |
1261 | ui__warning("%u unprocessable samples recorded.\n" | |
1262 | "Do you have a KVM guest running and not using 'perf kvm'?\n", | |
1263 | session->hists.stats.nr_unprocessable_samples); | |
1264 | } | |
11095994 ACM |
1265 | } |
1266 | ||
8dc58101 TZ |
1267 | #define session_done() (*(volatile int *)(&session_done)) |
1268 | volatile int session_done; | |
1269 | ||
1270 | static int __perf_session__process_pipe_events(struct perf_session *self, | |
45694aa7 | 1271 | struct perf_tool *tool) |
8dc58101 | 1272 | { |
444d2866 SE |
1273 | union perf_event *event; |
1274 | uint32_t size, cur_size = 0; | |
1275 | void *buf = NULL; | |
8dc58101 TZ |
1276 | int skip = 0; |
1277 | u64 head; | |
1278 | int err; | |
1279 | void *p; | |
1280 | ||
45694aa7 | 1281 | perf_tool__fill_defaults(tool); |
8dc58101 TZ |
1282 | |
1283 | head = 0; | |
444d2866 SE |
1284 | cur_size = sizeof(union perf_event); |
1285 | ||
1286 | buf = malloc(cur_size); | |
1287 | if (!buf) | |
1288 | return -errno; | |
8dc58101 | 1289 | more: |
444d2866 SE |
1290 | event = buf; |
1291 | err = readn(self->fd, event, sizeof(struct perf_event_header)); | |
8dc58101 TZ |
1292 | if (err <= 0) { |
1293 | if (err == 0) | |
1294 | goto done; | |
1295 | ||
1296 | pr_err("failed to read event header\n"); | |
1297 | goto out_err; | |
1298 | } | |
1299 | ||
1300 | if (self->header.needs_swap) | |
444d2866 | 1301 | perf_event_header__bswap(&event->header); |
8dc58101 | 1302 | |
444d2866 | 1303 | size = event->header.size; |
8dc58101 TZ |
1304 | if (size == 0) |
1305 | size = 8; | |
1306 | ||
444d2866 SE |
1307 | if (size > cur_size) { |
1308 | void *new = realloc(buf, size); | |
1309 | if (!new) { | |
1310 | pr_err("failed to allocate memory to read event\n"); | |
1311 | goto out_err; | |
1312 | } | |
1313 | buf = new; | |
1314 | cur_size = size; | |
1315 | event = buf; | |
1316 | } | |
1317 | p = event; | |
8dc58101 TZ |
1318 | p += sizeof(struct perf_event_header); |
1319 | ||
794e43b5 | 1320 | if (size - sizeof(struct perf_event_header)) { |
1e7972cc | 1321 | err = readn(self->fd, p, size - sizeof(struct perf_event_header)); |
794e43b5 TZ |
1322 | if (err <= 0) { |
1323 | if (err == 0) { | |
1324 | pr_err("unexpected end of event stream\n"); | |
1325 | goto done; | |
1326 | } | |
8dc58101 | 1327 | |
794e43b5 TZ |
1328 | pr_err("failed to read event data\n"); |
1329 | goto out_err; | |
1330 | } | |
8dc58101 TZ |
1331 | } |
1332 | ||
444d2866 | 1333 | if ((skip = perf_session__process_event(self, event, tool, head)) < 0) { |
9389a460 | 1334 | pr_err("%#" PRIx64 " [%#x]: failed to process type: %d\n", |
444d2866 | 1335 | head, event->header.size, event->header.type); |
9389a460 JO |
1336 | err = -EINVAL; |
1337 | goto out_err; | |
8dc58101 TZ |
1338 | } |
1339 | ||
1340 | head += size; | |
1341 | ||
8dc58101 TZ |
1342 | if (skip > 0) |
1343 | head += skip; | |
1344 | ||
1345 | if (!session_done()) | |
1346 | goto more; | |
1347 | done: | |
1348 | err = 0; | |
1349 | out_err: | |
444d2866 | 1350 | free(buf); |
45694aa7 | 1351 | perf_session__warn_about_errors(self, tool); |
020bb75a | 1352 | perf_session_free_sample_buffers(self); |
8dc58101 TZ |
1353 | return err; |
1354 | } | |
1355 | ||
998bedc8 FW |
1356 | static union perf_event * |
1357 | fetch_mmaped_event(struct perf_session *session, | |
1358 | u64 head, size_t mmap_size, char *buf) | |
1359 | { | |
1360 | union perf_event *event; | |
1361 | ||
1362 | /* | |
1363 | * Ensure we have enough space remaining to read | |
1364 | * the size of the event in the headers. | |
1365 | */ | |
1366 | if (head + sizeof(event->header) > mmap_size) | |
1367 | return NULL; | |
1368 | ||
1369 | event = (union perf_event *)(buf + head); | |
1370 | ||
1371 | if (session->header.needs_swap) | |
1372 | perf_event_header__bswap(&event->header); | |
1373 | ||
1374 | if (head + event->header.size > mmap_size) | |
1375 | return NULL; | |
1376 | ||
1377 | return event; | |
1378 | } | |
1379 | ||
35d48ddf DM |
1380 | /* |
1381 | * On 64bit we can mmap the data file in one go. No need for tiny mmap | |
1382 | * slices. On 32bit we use 32MB. | |
1383 | */ | |
1384 | #if BITS_PER_LONG == 64 | |
1385 | #define MMAP_SIZE ULLONG_MAX | |
1386 | #define NUM_MMAPS 1 | |
1387 | #else | |
1388 | #define MMAP_SIZE (32 * 1024 * 1024ULL) | |
1389 | #define NUM_MMAPS 128 | |
1390 | #endif | |
1391 | ||
0331ee0c | 1392 | int __perf_session__process_events(struct perf_session *session, |
6122e4e4 | 1393 | u64 data_offset, u64 data_size, |
45694aa7 | 1394 | u64 file_size, struct perf_tool *tool) |
06aae590 | 1395 | { |
55b44629 | 1396 | u64 head, page_offset, file_offset, file_pos, progress_next; |
fe174207 | 1397 | int err, mmap_prot, mmap_flags, map_idx = 0; |
0c1fe6b2 | 1398 | size_t mmap_size; |
35d48ddf | 1399 | char *buf, *mmaps[NUM_MMAPS]; |
8115d60c | 1400 | union perf_event *event; |
06aae590 | 1401 | uint32_t size; |
0331ee0c | 1402 | |
45694aa7 | 1403 | perf_tool__fill_defaults(tool); |
06aae590 | 1404 | |
0331ee0c TG |
1405 | page_offset = page_size * (data_offset / page_size); |
1406 | file_offset = page_offset; | |
1407 | head = data_offset - page_offset; | |
06aae590 | 1408 | |
d6513281 TG |
1409 | if (data_offset + data_size < file_size) |
1410 | file_size = data_offset + data_size; | |
1411 | ||
55b44629 | 1412 | progress_next = file_size / 16; |
55b44629 | 1413 | |
35d48ddf | 1414 | mmap_size = MMAP_SIZE; |
55b44629 TG |
1415 | if (mmap_size > file_size) |
1416 | mmap_size = file_size; | |
1417 | ||
fe174207 TG |
1418 | memset(mmaps, 0, sizeof(mmaps)); |
1419 | ||
ba21594c ACM |
1420 | mmap_prot = PROT_READ; |
1421 | mmap_flags = MAP_SHARED; | |
1422 | ||
0331ee0c | 1423 | if (session->header.needs_swap) { |
ba21594c ACM |
1424 | mmap_prot |= PROT_WRITE; |
1425 | mmap_flags = MAP_PRIVATE; | |
1426 | } | |
06aae590 | 1427 | remap: |
55b44629 TG |
1428 | buf = mmap(NULL, mmap_size, mmap_prot, mmap_flags, session->fd, |
1429 | file_offset); | |
06aae590 ACM |
1430 | if (buf == MAP_FAILED) { |
1431 | pr_err("failed to mmap file\n"); | |
1432 | err = -errno; | |
1433 | goto out_err; | |
1434 | } | |
fe174207 TG |
1435 | mmaps[map_idx] = buf; |
1436 | map_idx = (map_idx + 1) & (ARRAY_SIZE(mmaps) - 1); | |
d6513281 | 1437 | file_pos = file_offset + head; |
06aae590 ACM |
1438 | |
1439 | more: | |
998bedc8 FW |
1440 | event = fetch_mmaped_event(session, head, mmap_size, buf); |
1441 | if (!event) { | |
fe174207 TG |
1442 | if (mmaps[map_idx]) { |
1443 | munmap(mmaps[map_idx], mmap_size); | |
1444 | mmaps[map_idx] = NULL; | |
1445 | } | |
06aae590 | 1446 | |
0331ee0c TG |
1447 | page_offset = page_size * (head / page_size); |
1448 | file_offset += page_offset; | |
1449 | head -= page_offset; | |
06aae590 ACM |
1450 | goto remap; |
1451 | } | |
1452 | ||
1453 | size = event->header.size; | |
1454 | ||
d6513281 | 1455 | if (size == 0 || |
45694aa7 | 1456 | perf_session__process_event(session, event, tool, file_pos) < 0) { |
9389a460 JO |
1457 | pr_err("%#" PRIx64 " [%#x]: failed to process type: %d\n", |
1458 | file_offset + head, event->header.size, | |
1459 | event->header.type); | |
1460 | err = -EINVAL; | |
1461 | goto out_err; | |
06aae590 ACM |
1462 | } |
1463 | ||
1464 | head += size; | |
d6513281 | 1465 | file_pos += size; |
06aae590 | 1466 | |
55b44629 TG |
1467 | if (file_pos >= progress_next) { |
1468 | progress_next += file_size / 16; | |
ca59bcbc ACM |
1469 | ui_progress__update(file_pos, file_size, |
1470 | "Processing events..."); | |
55b44629 TG |
1471 | } |
1472 | ||
d6513281 | 1473 | if (file_pos < file_size) |
06aae590 | 1474 | goto more; |
d6513281 | 1475 | |
06aae590 | 1476 | err = 0; |
c61e52ee | 1477 | /* do the final flush for ordered samples */ |
0331ee0c | 1478 | session->ordered_samples.next_flush = ULLONG_MAX; |
d25380cd | 1479 | err = flush_sample_queue(session, tool); |
06aae590 | 1480 | out_err: |
a5580f3e | 1481 | ui_progress__finish(); |
45694aa7 | 1482 | perf_session__warn_about_errors(session, tool); |
020bb75a | 1483 | perf_session_free_sample_buffers(session); |
06aae590 ACM |
1484 | return err; |
1485 | } | |
27295592 | 1486 | |
6122e4e4 | 1487 | int perf_session__process_events(struct perf_session *self, |
45694aa7 | 1488 | struct perf_tool *tool) |
6122e4e4 ACM |
1489 | { |
1490 | int err; | |
1491 | ||
1492 | if (perf_session__register_idle_thread(self) == NULL) | |
1493 | return -ENOMEM; | |
1494 | ||
8dc58101 TZ |
1495 | if (!self->fd_pipe) |
1496 | err = __perf_session__process_events(self, | |
1497 | self->header.data_offset, | |
1498 | self->header.data_size, | |
45694aa7 | 1499 | self->size, tool); |
8dc58101 | 1500 | else |
45694aa7 | 1501 | err = __perf_session__process_pipe_events(self, tool); |
88ca895d | 1502 | |
6122e4e4 ACM |
1503 | return err; |
1504 | } | |
1505 | ||
7f3be652 | 1506 | bool perf_session__has_traces(struct perf_session *session, const char *msg) |
27295592 | 1507 | { |
7f3be652 | 1508 | if (!(perf_evlist__sample_type(session->evlist) & PERF_SAMPLE_RAW)) { |
d549c769 ACM |
1509 | pr_err("No trace sample to read. Did you call 'perf %s'?\n", msg); |
1510 | return false; | |
27295592 ACM |
1511 | } |
1512 | ||
d549c769 | 1513 | return true; |
27295592 | 1514 | } |
56b03f3c | 1515 | |
743eb868 ACM |
1516 | int maps__set_kallsyms_ref_reloc_sym(struct map **maps, |
1517 | const char *symbol_name, u64 addr) | |
56b03f3c ACM |
1518 | { |
1519 | char *bracket; | |
9de89fe7 | 1520 | enum map_type i; |
a1645ce1 ZY |
1521 | struct ref_reloc_sym *ref; |
1522 | ||
1523 | ref = zalloc(sizeof(struct ref_reloc_sym)); | |
1524 | if (ref == NULL) | |
1525 | return -ENOMEM; | |
56b03f3c | 1526 | |
a1645ce1 ZY |
1527 | ref->name = strdup(symbol_name); |
1528 | if (ref->name == NULL) { | |
1529 | free(ref); | |
56b03f3c | 1530 | return -ENOMEM; |
a1645ce1 | 1531 | } |
56b03f3c | 1532 | |
a1645ce1 | 1533 | bracket = strchr(ref->name, ']'); |
56b03f3c ACM |
1534 | if (bracket) |
1535 | *bracket = '\0'; | |
1536 | ||
a1645ce1 | 1537 | ref->addr = addr; |
9de89fe7 ACM |
1538 | |
1539 | for (i = 0; i < MAP__NR_TYPES; ++i) { | |
a1645ce1 ZY |
1540 | struct kmap *kmap = map__kmap(maps[i]); |
1541 | kmap->ref_reloc_sym = ref; | |
9de89fe7 ACM |
1542 | } |
1543 | ||
56b03f3c ACM |
1544 | return 0; |
1545 | } | |
1f626bc3 ACM |
1546 | |
1547 | size_t perf_session__fprintf_dsos(struct perf_session *self, FILE *fp) | |
1548 | { | |
1549 | return __dsos__fprintf(&self->host_machine.kernel_dsos, fp) + | |
1550 | __dsos__fprintf(&self->host_machine.user_dsos, fp) + | |
1551 | machines__fprintf_dsos(&self->machines, fp); | |
1552 | } | |
f869097e ACM |
1553 | |
1554 | size_t perf_session__fprintf_dsos_buildid(struct perf_session *self, FILE *fp, | |
1555 | bool with_hits) | |
1556 | { | |
1557 | size_t ret = machine__fprintf_dsos_buildid(&self->host_machine, fp, with_hits); | |
1558 | return ret + machines__fprintf_dsos_buildid(&self->machines, fp, with_hits); | |
1559 | } | |
e248de33 ACM |
1560 | |
1561 | size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp) | |
1562 | { | |
1563 | struct perf_evsel *pos; | |
1564 | size_t ret = fprintf(fp, "Aggregated stats:\n"); | |
1565 | ||
1566 | ret += hists__fprintf_nr_events(&session->hists, fp); | |
1567 | ||
1568 | list_for_each_entry(pos, &session->evlist->entries, node) { | |
7289f83c | 1569 | ret += fprintf(fp, "%s stats:\n", perf_evsel__name(pos)); |
e248de33 ACM |
1570 | ret += hists__fprintf_nr_events(&pos->hists, fp); |
1571 | } | |
1572 | ||
1573 | return ret; | |
1574 | } | |
c0230b2b | 1575 | |
b424eba2 ACM |
1576 | size_t perf_session__fprintf(struct perf_session *session, FILE *fp) |
1577 | { | |
1578 | /* | |
1579 | * FIXME: Here we have to actually print all the machines in this | |
1580 | * session, not just the host... | |
1581 | */ | |
1582 | return machine__fprintf(&session->host_machine, fp); | |
1583 | } | |
1584 | ||
1585 | void perf_session__remove_thread(struct perf_session *session, | |
1586 | struct thread *th) | |
1587 | { | |
1588 | /* | |
1589 | * FIXME: This one makes no sense, we need to remove the thread from | |
1590 | * the machine it belongs to, perf_session can have many machines, so | |
1591 | * doing it always on ->host_machine is wrong. Fix when auditing all | |
1592 | * the 'perf kvm' code. | |
1593 | */ | |
1594 | machine__remove_thread(&session->host_machine, th); | |
1595 | } | |
1596 | ||
9cbdb702 DA |
1597 | struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session, |
1598 | unsigned int type) | |
1599 | { | |
1600 | struct perf_evsel *pos; | |
1601 | ||
1602 | list_for_each_entry(pos, &session->evlist->entries, node) { | |
1603 | if (pos->attr.type == type) | |
1604 | return pos; | |
1605 | } | |
1606 | return NULL; | |
1607 | } | |
1608 | ||
71ad0f5e JO |
1609 | void perf_evsel__print_ip(struct perf_evsel *evsel, union perf_event *event, |
1610 | struct perf_sample *sample, struct machine *machine, | |
1611 | int print_sym, int print_dso, int print_symoffset) | |
c0230b2b DA |
1612 | { |
1613 | struct addr_location al; | |
c0230b2b DA |
1614 | struct callchain_cursor_node *node; |
1615 | ||
743eb868 | 1616 | if (perf_event__preprocess_sample(event, machine, &al, sample, |
c0230b2b DA |
1617 | NULL) < 0) { |
1618 | error("problem processing %d event, skipping it.\n", | |
1619 | event->header.type); | |
1620 | return; | |
1621 | } | |
1622 | ||
1623 | if (symbol_conf.use_callchain && sample->callchain) { | |
1624 | ||
71ad0f5e JO |
1625 | |
1626 | if (machine__resolve_callchain(machine, evsel, al.thread, | |
1627 | sample, NULL) != 0) { | |
c0230b2b DA |
1628 | if (verbose) |
1629 | error("Failed to resolve callchain. Skipping\n"); | |
1630 | return; | |
1631 | } | |
47260645 | 1632 | callchain_cursor_commit(&callchain_cursor); |
c0230b2b DA |
1633 | |
1634 | while (1) { | |
47260645 | 1635 | node = callchain_cursor_current(&callchain_cursor); |
c0230b2b DA |
1636 | if (!node) |
1637 | break; | |
1638 | ||
787bef17 DA |
1639 | printf("\t%16" PRIx64, node->ip); |
1640 | if (print_sym) { | |
547a92e0 AN |
1641 | printf(" "); |
1642 | symbol__fprintf_symname(node->sym, stdout); | |
610723f2 DA |
1643 | } |
1644 | if (print_dso) { | |
547a92e0 | 1645 | printf(" ("); |
52deff71 | 1646 | map__fprintf_dsoname(node->map, stdout); |
547a92e0 | 1647 | printf(")"); |
787bef17 DA |
1648 | } |
1649 | printf("\n"); | |
c0230b2b | 1650 | |
47260645 | 1651 | callchain_cursor_advance(&callchain_cursor); |
c0230b2b DA |
1652 | } |
1653 | ||
1654 | } else { | |
adc4bf99 | 1655 | printf("%16" PRIx64, sample->ip); |
787bef17 | 1656 | if (print_sym) { |
547a92e0 | 1657 | printf(" "); |
a978f2ab AN |
1658 | if (print_symoffset) |
1659 | symbol__fprintf_symname_offs(al.sym, &al, | |
1660 | stdout); | |
1661 | else | |
1662 | symbol__fprintf_symname(al.sym, stdout); | |
610723f2 DA |
1663 | } |
1664 | ||
1665 | if (print_dso) { | |
547a92e0 AN |
1666 | printf(" ("); |
1667 | map__fprintf_dsoname(al.map, stdout); | |
1668 | printf(")"); | |
787bef17 | 1669 | } |
c0230b2b DA |
1670 | } |
1671 | } | |
5d67be97 AB |
1672 | |
1673 | int perf_session__cpu_bitmap(struct perf_session *session, | |
1674 | const char *cpu_list, unsigned long *cpu_bitmap) | |
1675 | { | |
1676 | int i; | |
1677 | struct cpu_map *map; | |
1678 | ||
1679 | for (i = 0; i < PERF_TYPE_MAX; ++i) { | |
1680 | struct perf_evsel *evsel; | |
1681 | ||
1682 | evsel = perf_session__find_first_evtype(session, i); | |
1683 | if (!evsel) | |
1684 | continue; | |
1685 | ||
1686 | if (!(evsel->attr.sample_type & PERF_SAMPLE_CPU)) { | |
1687 | pr_err("File does not contain CPU events. " | |
1688 | "Remove -c option to proceed.\n"); | |
1689 | return -1; | |
1690 | } | |
1691 | } | |
1692 | ||
1693 | map = cpu_map__new(cpu_list); | |
47fbe53b DA |
1694 | if (map == NULL) { |
1695 | pr_err("Invalid cpu_list\n"); | |
1696 | return -1; | |
1697 | } | |
5d67be97 AB |
1698 | |
1699 | for (i = 0; i < map->nr; i++) { | |
1700 | int cpu = map->map[i]; | |
1701 | ||
1702 | if (cpu >= MAX_NR_CPUS) { | |
1703 | pr_err("Requested CPU %d too large. " | |
1704 | "Consider raising MAX_NR_CPUS\n", cpu); | |
1705 | return -1; | |
1706 | } | |
1707 | ||
1708 | set_bit(cpu, cpu_bitmap); | |
1709 | } | |
1710 | ||
1711 | return 0; | |
1712 | } | |
fbe96f29 SE |
1713 | |
1714 | void perf_session__fprintf_info(struct perf_session *session, FILE *fp, | |
1715 | bool full) | |
1716 | { | |
1717 | struct stat st; | |
1718 | int ret; | |
1719 | ||
1720 | if (session == NULL || fp == NULL) | |
1721 | return; | |
1722 | ||
1723 | ret = fstat(session->fd, &st); | |
1724 | if (ret == -1) | |
1725 | return; | |
1726 | ||
1727 | fprintf(fp, "# ========\n"); | |
1728 | fprintf(fp, "# captured on: %s", ctime(&st.st_ctime)); | |
1729 | perf_header__fprintf_info(session, fp, full); | |
1730 | fprintf(fp, "# ========\n#\n"); | |
1731 | } | |
da378962 ACM |
1732 | |
1733 | ||
1734 | int __perf_session__set_tracepoints_handlers(struct perf_session *session, | |
1735 | const struct perf_evsel_str_handler *assocs, | |
1736 | size_t nr_assocs) | |
1737 | { | |
1738 | struct perf_evlist *evlist = session->evlist; | |
1739 | struct event_format *format; | |
1740 | struct perf_evsel *evsel; | |
1741 | char *tracepoint, *name; | |
1742 | size_t i; | |
1743 | int err; | |
1744 | ||
1745 | for (i = 0; i < nr_assocs; i++) { | |
1746 | err = -ENOMEM; | |
1747 | tracepoint = strdup(assocs[i].name); | |
1748 | if (tracepoint == NULL) | |
1749 | goto out; | |
1750 | ||
1751 | err = -ENOENT; | |
1752 | name = strchr(tracepoint, ':'); | |
1753 | if (name == NULL) | |
1754 | goto out_free; | |
1755 | ||
1756 | *name++ = '\0'; | |
1757 | format = pevent_find_event_by_name(session->pevent, | |
1758 | tracepoint, name); | |
1759 | if (format == NULL) { | |
1760 | /* | |
1761 | * Adding a handler for an event not in the session, | |
1762 | * just ignore it. | |
1763 | */ | |
1764 | goto next; | |
1765 | } | |
1766 | ||
1767 | evsel = perf_evlist__find_tracepoint_by_id(evlist, format->id); | |
1768 | if (evsel == NULL) | |
1769 | goto next; | |
1770 | ||
1771 | err = -EEXIST; | |
1772 | if (evsel->handler.func != NULL) | |
1773 | goto out_free; | |
1774 | evsel->handler.func = assocs[i].handler; | |
1775 | next: | |
1776 | free(tracepoint); | |
1777 | } | |
1778 | ||
1779 | err = 0; | |
1780 | out: | |
1781 | return err; | |
1782 | ||
1783 | out_free: | |
1784 | free(tracepoint); | |
1785 | goto out; | |
1786 | } |