]>
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" |
7dbf4dcf | 17 | #include "vdso.h" |
94c744b6 | 18 | |
6a4d98d7 | 19 | static int perf_session__open(struct perf_session *self) |
94c744b6 | 20 | { |
cc9784bd | 21 | struct perf_data_file *file = self->file; |
8dc58101 | 22 | |
d4339569 | 23 | if (perf_session__read_header(self) < 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 | ||
c2a70653 ACM |
31 | if (!perf_evlist__valid_sample_type(self->evlist)) { |
32 | pr_err("non matching sample_type"); | |
6a4d98d7 | 33 | return -1; |
c2a70653 ACM |
34 | } |
35 | ||
36 | if (!perf_evlist__valid_sample_id_all(self->evlist)) { | |
37 | pr_err("non matching sample_id_all"); | |
6a4d98d7 | 38 | return -1; |
c2a70653 ACM |
39 | } |
40 | ||
9ede473c JO |
41 | if (!perf_evlist__valid_read_format(self->evlist)) { |
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 | ||
a1645ce1 ZY |
56 | int perf_session__create_kernel_maps(struct perf_session *self) |
57 | { | |
876650e6 | 58 | int ret = machine__create_kernel_maps(&self->machines.host); |
a1645ce1 | 59 | |
a1645ce1 | 60 | if (ret >= 0) |
d118f8ba | 61 | ret = machines__create_guest_kernel_maps(&self->machines); |
a1645ce1 ZY |
62 | return ret; |
63 | } | |
64 | ||
076c6e45 ACM |
65 | static void perf_session__destroy_kernel_maps(struct perf_session *self) |
66 | { | |
876650e6 | 67 | machines__destroy_kernel_maps(&self->machines); |
076c6e45 ACM |
68 | } |
69 | ||
f5fc1412 JO |
70 | struct perf_session *perf_session__new(struct perf_data_file *file, |
71 | bool repipe, struct perf_tool *tool) | |
94c744b6 | 72 | { |
efad1415 | 73 | struct perf_session *self; |
efad1415 | 74 | |
6a4d98d7 JO |
75 | self = zalloc(sizeof(*self)); |
76 | if (!self) | |
94c744b6 ACM |
77 | goto out; |
78 | ||
454c407e | 79 | self->repipe = repipe; |
a1225dec | 80 | INIT_LIST_HEAD(&self->ordered_samples.samples); |
020bb75a | 81 | INIT_LIST_HEAD(&self->ordered_samples.sample_cache); |
5c891f38 | 82 | INIT_LIST_HEAD(&self->ordered_samples.to_free); |
876650e6 | 83 | machines__init(&self->machines); |
94c744b6 | 84 | |
6a4d98d7 JO |
85 | if (file) { |
86 | if (perf_data_file__open(file)) | |
64abebf7 | 87 | goto out_delete; |
6a4d98d7 | 88 | |
cc9784bd | 89 | self->file = file; |
6a4d98d7 JO |
90 | |
91 | if (perf_data_file__is_read(file)) { | |
92 | if (perf_session__open(self) < 0) | |
93 | goto out_close; | |
94 | ||
95 | perf_session__set_id_hdr_size(self); | |
96 | } | |
97 | } | |
98 | ||
99 | if (!file || perf_data_file__is_write(file)) { | |
64abebf7 ACM |
100 | /* |
101 | * In O_RDONLY mode this will be performed when reading the | |
8115d60c | 102 | * kernel MMAP event, in perf_event__process_mmap(). |
64abebf7 ACM |
103 | */ |
104 | if (perf_session__create_kernel_maps(self) < 0) | |
105 | goto out_delete; | |
106 | } | |
d549c769 | 107 | |
45694aa7 | 108 | if (tool && tool->ordering_requires_timestamps && |
5e562474 | 109 | tool->ordered_samples && !perf_evlist__sample_id_all(self->evlist)) { |
21ef97f0 | 110 | dump_printf("WARNING: No sample_id_all support, falling back to unordered processing\n"); |
45694aa7 | 111 | tool->ordered_samples = false; |
21ef97f0 IM |
112 | } |
113 | ||
94c744b6 | 114 | return self; |
6a4d98d7 JO |
115 | |
116 | out_close: | |
117 | perf_data_file__close(file); | |
118 | out_delete: | |
4aa65636 | 119 | perf_session__delete(self); |
6a4d98d7 | 120 | out: |
4aa65636 | 121 | return NULL; |
94c744b6 ACM |
122 | } |
123 | ||
b424eba2 ACM |
124 | static void perf_session__delete_dead_threads(struct perf_session *session) |
125 | { | |
876650e6 | 126 | machine__delete_dead_threads(&session->machines.host); |
b424eba2 ACM |
127 | } |
128 | ||
b424eba2 ACM |
129 | static void perf_session__delete_threads(struct perf_session *session) |
130 | { | |
876650e6 | 131 | machine__delete_threads(&session->machines.host); |
b424eba2 ACM |
132 | } |
133 | ||
03cd2094 NK |
134 | static void perf_session_env__delete(struct perf_session_env *env) |
135 | { | |
136 | free(env->hostname); | |
137 | free(env->os_release); | |
138 | free(env->version); | |
139 | free(env->arch); | |
140 | free(env->cpu_desc); | |
141 | free(env->cpuid); | |
142 | ||
143 | free(env->cmdline); | |
144 | free(env->sibling_cores); | |
145 | free(env->sibling_threads); | |
146 | free(env->numa_nodes); | |
147 | free(env->pmu_mappings); | |
148 | } | |
149 | ||
94c744b6 ACM |
150 | void perf_session__delete(struct perf_session *self) |
151 | { | |
076c6e45 | 152 | perf_session__destroy_kernel_maps(self); |
d65a458b ACM |
153 | perf_session__delete_dead_threads(self); |
154 | perf_session__delete_threads(self); | |
03cd2094 | 155 | perf_session_env__delete(&self->header.env); |
876650e6 | 156 | machines__exit(&self->machines); |
cc9784bd JO |
157 | if (self->file) |
158 | perf_data_file__close(self->file); | |
94c744b6 | 159 | free(self); |
7dbf4dcf | 160 | vdso__exit(); |
94c744b6 | 161 | } |
a328626b | 162 | |
47c3d109 AH |
163 | static int process_event_synth_tracing_data_stub(struct perf_tool *tool |
164 | __maybe_unused, | |
165 | union perf_event *event | |
1d037ca1 IT |
166 | __maybe_unused, |
167 | struct perf_session *session | |
168 | __maybe_unused) | |
d20deb64 ACM |
169 | { |
170 | dump_printf(": unhandled!\n"); | |
171 | return 0; | |
172 | } | |
173 | ||
47c3d109 AH |
174 | static int process_event_synth_attr_stub(struct perf_tool *tool __maybe_unused, |
175 | union perf_event *event __maybe_unused, | |
1d037ca1 IT |
176 | struct perf_evlist **pevlist |
177 | __maybe_unused) | |
10d0f086 ACM |
178 | { |
179 | dump_printf(": unhandled!\n"); | |
180 | return 0; | |
181 | } | |
182 | ||
1d037ca1 IT |
183 | static int process_event_sample_stub(struct perf_tool *tool __maybe_unused, |
184 | union perf_event *event __maybe_unused, | |
185 | struct perf_sample *sample __maybe_unused, | |
186 | struct perf_evsel *evsel __maybe_unused, | |
187 | struct machine *machine __maybe_unused) | |
9e69c210 ACM |
188 | { |
189 | dump_printf(": unhandled!\n"); | |
190 | return 0; | |
191 | } | |
192 | ||
1d037ca1 IT |
193 | static int process_event_stub(struct perf_tool *tool __maybe_unused, |
194 | union perf_event *event __maybe_unused, | |
195 | struct perf_sample *sample __maybe_unused, | |
196 | struct machine *machine __maybe_unused) | |
06aae590 ACM |
197 | { |
198 | dump_printf(": unhandled!\n"); | |
199 | return 0; | |
200 | } | |
201 | ||
1d037ca1 IT |
202 | static int process_finished_round_stub(struct perf_tool *tool __maybe_unused, |
203 | union perf_event *event __maybe_unused, | |
204 | struct perf_session *perf_session | |
205 | __maybe_unused) | |
743eb868 ACM |
206 | { |
207 | dump_printf(": unhandled!\n"); | |
208 | return 0; | |
209 | } | |
210 | ||
45694aa7 | 211 | static int process_finished_round(struct perf_tool *tool, |
d20deb64 ACM |
212 | union perf_event *event, |
213 | struct perf_session *session); | |
d6b17beb | 214 | |
9c501402 | 215 | void perf_tool__fill_defaults(struct perf_tool *tool) |
06aae590 | 216 | { |
45694aa7 ACM |
217 | if (tool->sample == NULL) |
218 | tool->sample = process_event_sample_stub; | |
219 | if (tool->mmap == NULL) | |
220 | tool->mmap = process_event_stub; | |
6adb0b0a DA |
221 | if (tool->mmap2 == NULL) |
222 | tool->mmap2 = process_event_stub; | |
45694aa7 ACM |
223 | if (tool->comm == NULL) |
224 | tool->comm = process_event_stub; | |
225 | if (tool->fork == NULL) | |
226 | tool->fork = process_event_stub; | |
227 | if (tool->exit == NULL) | |
228 | tool->exit = process_event_stub; | |
229 | if (tool->lost == NULL) | |
230 | tool->lost = perf_event__process_lost; | |
231 | if (tool->read == NULL) | |
232 | tool->read = process_event_sample_stub; | |
233 | if (tool->throttle == NULL) | |
234 | tool->throttle = process_event_stub; | |
235 | if (tool->unthrottle == NULL) | |
236 | tool->unthrottle = process_event_stub; | |
237 | if (tool->attr == NULL) | |
238 | tool->attr = process_event_synth_attr_stub; | |
45694aa7 ACM |
239 | if (tool->tracing_data == NULL) |
240 | tool->tracing_data = process_event_synth_tracing_data_stub; | |
241 | if (tool->build_id == NULL) | |
242 | tool->build_id = process_finished_round_stub; | |
243 | if (tool->finished_round == NULL) { | |
244 | if (tool->ordered_samples) | |
245 | tool->finished_round = process_finished_round; | |
d6b17beb | 246 | else |
45694aa7 | 247 | tool->finished_round = process_finished_round_stub; |
d6b17beb | 248 | } |
06aae590 | 249 | } |
80c0120a DA |
250 | |
251 | void mem_bswap_32(void *src, int byte_size) | |
252 | { | |
253 | u32 *m = src; | |
254 | while (byte_size > 0) { | |
255 | *m = bswap_32(*m); | |
256 | byte_size -= sizeof(u32); | |
257 | ++m; | |
258 | } | |
259 | } | |
06aae590 | 260 | |
ba21594c ACM |
261 | void mem_bswap_64(void *src, int byte_size) |
262 | { | |
263 | u64 *m = src; | |
264 | ||
265 | while (byte_size > 0) { | |
266 | *m = bswap_64(*m); | |
267 | byte_size -= sizeof(u64); | |
268 | ++m; | |
269 | } | |
270 | } | |
271 | ||
268fb20f JO |
272 | static void swap_sample_id_all(union perf_event *event, void *data) |
273 | { | |
274 | void *end = (void *) event + event->header.size; | |
275 | int size = end - data; | |
276 | ||
277 | BUG_ON(size % sizeof(u64)); | |
278 | mem_bswap_64(data, size); | |
279 | } | |
280 | ||
281 | static void perf_event__all64_swap(union perf_event *event, | |
1d037ca1 | 282 | bool sample_id_all __maybe_unused) |
ba21594c | 283 | { |
8115d60c ACM |
284 | struct perf_event_header *hdr = &event->header; |
285 | mem_bswap_64(hdr + 1, event->header.size - sizeof(*hdr)); | |
ba21594c ACM |
286 | } |
287 | ||
268fb20f | 288 | static void perf_event__comm_swap(union perf_event *event, bool sample_id_all) |
ba21594c | 289 | { |
8115d60c ACM |
290 | event->comm.pid = bswap_32(event->comm.pid); |
291 | event->comm.tid = bswap_32(event->comm.tid); | |
268fb20f JO |
292 | |
293 | if (sample_id_all) { | |
294 | void *data = &event->comm.comm; | |
295 | ||
9ac3e487 | 296 | data += PERF_ALIGN(strlen(data) + 1, sizeof(u64)); |
268fb20f JO |
297 | swap_sample_id_all(event, data); |
298 | } | |
ba21594c ACM |
299 | } |
300 | ||
268fb20f JO |
301 | static void perf_event__mmap_swap(union perf_event *event, |
302 | bool sample_id_all) | |
ba21594c | 303 | { |
8115d60c ACM |
304 | event->mmap.pid = bswap_32(event->mmap.pid); |
305 | event->mmap.tid = bswap_32(event->mmap.tid); | |
306 | event->mmap.start = bswap_64(event->mmap.start); | |
307 | event->mmap.len = bswap_64(event->mmap.len); | |
308 | event->mmap.pgoff = bswap_64(event->mmap.pgoff); | |
268fb20f JO |
309 | |
310 | if (sample_id_all) { | |
311 | void *data = &event->mmap.filename; | |
312 | ||
9ac3e487 | 313 | data += PERF_ALIGN(strlen(data) + 1, sizeof(u64)); |
268fb20f JO |
314 | swap_sample_id_all(event, data); |
315 | } | |
ba21594c ACM |
316 | } |
317 | ||
5c5e854b SE |
318 | static void perf_event__mmap2_swap(union perf_event *event, |
319 | bool sample_id_all) | |
320 | { | |
321 | event->mmap2.pid = bswap_32(event->mmap2.pid); | |
322 | event->mmap2.tid = bswap_32(event->mmap2.tid); | |
323 | event->mmap2.start = bswap_64(event->mmap2.start); | |
324 | event->mmap2.len = bswap_64(event->mmap2.len); | |
325 | event->mmap2.pgoff = bswap_64(event->mmap2.pgoff); | |
326 | event->mmap2.maj = bswap_32(event->mmap2.maj); | |
327 | event->mmap2.min = bswap_32(event->mmap2.min); | |
328 | event->mmap2.ino = bswap_64(event->mmap2.ino); | |
329 | ||
330 | if (sample_id_all) { | |
331 | void *data = &event->mmap2.filename; | |
332 | ||
333 | data += PERF_ALIGN(strlen(data) + 1, sizeof(u64)); | |
334 | swap_sample_id_all(event, data); | |
335 | } | |
336 | } | |
268fb20f | 337 | static void perf_event__task_swap(union perf_event *event, bool sample_id_all) |
ba21594c | 338 | { |
8115d60c ACM |
339 | event->fork.pid = bswap_32(event->fork.pid); |
340 | event->fork.tid = bswap_32(event->fork.tid); | |
341 | event->fork.ppid = bswap_32(event->fork.ppid); | |
342 | event->fork.ptid = bswap_32(event->fork.ptid); | |
343 | event->fork.time = bswap_64(event->fork.time); | |
268fb20f JO |
344 | |
345 | if (sample_id_all) | |
346 | swap_sample_id_all(event, &event->fork + 1); | |
ba21594c ACM |
347 | } |
348 | ||
268fb20f | 349 | static void perf_event__read_swap(union perf_event *event, bool sample_id_all) |
ba21594c | 350 | { |
8115d60c ACM |
351 | event->read.pid = bswap_32(event->read.pid); |
352 | event->read.tid = bswap_32(event->read.tid); | |
353 | event->read.value = bswap_64(event->read.value); | |
354 | event->read.time_enabled = bswap_64(event->read.time_enabled); | |
355 | event->read.time_running = bswap_64(event->read.time_running); | |
356 | event->read.id = bswap_64(event->read.id); | |
268fb20f JO |
357 | |
358 | if (sample_id_all) | |
359 | swap_sample_id_all(event, &event->read + 1); | |
ba21594c ACM |
360 | } |
361 | ||
dd96c46b JO |
362 | static void perf_event__throttle_swap(union perf_event *event, |
363 | bool sample_id_all) | |
364 | { | |
365 | event->throttle.time = bswap_64(event->throttle.time); | |
366 | event->throttle.id = bswap_64(event->throttle.id); | |
367 | event->throttle.stream_id = bswap_64(event->throttle.stream_id); | |
368 | ||
369 | if (sample_id_all) | |
370 | swap_sample_id_all(event, &event->throttle + 1); | |
371 | } | |
372 | ||
e108c66e JO |
373 | static u8 revbyte(u8 b) |
374 | { | |
375 | int rev = (b >> 4) | ((b & 0xf) << 4); | |
376 | rev = ((rev & 0xcc) >> 2) | ((rev & 0x33) << 2); | |
377 | rev = ((rev & 0xaa) >> 1) | ((rev & 0x55) << 1); | |
378 | return (u8) rev; | |
379 | } | |
380 | ||
381 | /* | |
382 | * XXX this is hack in attempt to carry flags bitfield | |
383 | * throught endian village. ABI says: | |
384 | * | |
385 | * Bit-fields are allocated from right to left (least to most significant) | |
386 | * on little-endian implementations and from left to right (most to least | |
387 | * significant) on big-endian implementations. | |
388 | * | |
389 | * The above seems to be byte specific, so we need to reverse each | |
390 | * byte of the bitfield. 'Internet' also says this might be implementation | |
391 | * specific and we probably need proper fix and carry perf_event_attr | |
392 | * bitfield flags in separate data file FEAT_ section. Thought this seems | |
393 | * to work for now. | |
394 | */ | |
395 | static void swap_bitfield(u8 *p, unsigned len) | |
396 | { | |
397 | unsigned i; | |
398 | ||
399 | for (i = 0; i < len; i++) { | |
400 | *p = revbyte(*p); | |
401 | p++; | |
402 | } | |
403 | } | |
404 | ||
eda3913b DA |
405 | /* exported for swapping attributes in file header */ |
406 | void perf_event__attr_swap(struct perf_event_attr *attr) | |
407 | { | |
408 | attr->type = bswap_32(attr->type); | |
409 | attr->size = bswap_32(attr->size); | |
410 | attr->config = bswap_64(attr->config); | |
411 | attr->sample_period = bswap_64(attr->sample_period); | |
412 | attr->sample_type = bswap_64(attr->sample_type); | |
413 | attr->read_format = bswap_64(attr->read_format); | |
414 | attr->wakeup_events = bswap_32(attr->wakeup_events); | |
415 | attr->bp_type = bswap_32(attr->bp_type); | |
416 | attr->bp_addr = bswap_64(attr->bp_addr); | |
417 | attr->bp_len = bswap_64(attr->bp_len); | |
7db59528 AH |
418 | attr->branch_sample_type = bswap_64(attr->branch_sample_type); |
419 | attr->sample_regs_user = bswap_64(attr->sample_regs_user); | |
420 | attr->sample_stack_user = bswap_32(attr->sample_stack_user); | |
e108c66e JO |
421 | |
422 | swap_bitfield((u8 *) (&attr->read_format + 1), sizeof(u64)); | |
eda3913b DA |
423 | } |
424 | ||
268fb20f | 425 | static void perf_event__hdr_attr_swap(union perf_event *event, |
1d037ca1 | 426 | bool sample_id_all __maybe_unused) |
2c46dbb5 TZ |
427 | { |
428 | size_t size; | |
429 | ||
eda3913b | 430 | perf_event__attr_swap(&event->attr.attr); |
2c46dbb5 | 431 | |
8115d60c ACM |
432 | size = event->header.size; |
433 | size -= (void *)&event->attr.id - (void *)event; | |
434 | mem_bswap_64(event->attr.id, size); | |
2c46dbb5 TZ |
435 | } |
436 | ||
268fb20f | 437 | static void perf_event__event_type_swap(union perf_event *event, |
1d037ca1 | 438 | bool sample_id_all __maybe_unused) |
cd19a035 | 439 | { |
8115d60c ACM |
440 | event->event_type.event_type.event_id = |
441 | bswap_64(event->event_type.event_type.event_id); | |
cd19a035 TZ |
442 | } |
443 | ||
268fb20f | 444 | static void perf_event__tracing_data_swap(union perf_event *event, |
1d037ca1 | 445 | bool sample_id_all __maybe_unused) |
9215545e | 446 | { |
8115d60c | 447 | event->tracing_data.size = bswap_32(event->tracing_data.size); |
9215545e TZ |
448 | } |
449 | ||
268fb20f JO |
450 | typedef void (*perf_event__swap_op)(union perf_event *event, |
451 | bool sample_id_all); | |
ba21594c | 452 | |
8115d60c ACM |
453 | static perf_event__swap_op perf_event__swap_ops[] = { |
454 | [PERF_RECORD_MMAP] = perf_event__mmap_swap, | |
5c5e854b | 455 | [PERF_RECORD_MMAP2] = perf_event__mmap2_swap, |
8115d60c ACM |
456 | [PERF_RECORD_COMM] = perf_event__comm_swap, |
457 | [PERF_RECORD_FORK] = perf_event__task_swap, | |
458 | [PERF_RECORD_EXIT] = perf_event__task_swap, | |
459 | [PERF_RECORD_LOST] = perf_event__all64_swap, | |
460 | [PERF_RECORD_READ] = perf_event__read_swap, | |
dd96c46b JO |
461 | [PERF_RECORD_THROTTLE] = perf_event__throttle_swap, |
462 | [PERF_RECORD_UNTHROTTLE] = perf_event__throttle_swap, | |
8115d60c | 463 | [PERF_RECORD_SAMPLE] = perf_event__all64_swap, |
eda3913b | 464 | [PERF_RECORD_HEADER_ATTR] = perf_event__hdr_attr_swap, |
8115d60c ACM |
465 | [PERF_RECORD_HEADER_EVENT_TYPE] = perf_event__event_type_swap, |
466 | [PERF_RECORD_HEADER_TRACING_DATA] = perf_event__tracing_data_swap, | |
467 | [PERF_RECORD_HEADER_BUILD_ID] = NULL, | |
468 | [PERF_RECORD_HEADER_MAX] = NULL, | |
ba21594c ACM |
469 | }; |
470 | ||
c61e52ee FW |
471 | struct sample_queue { |
472 | u64 timestamp; | |
e4c2df13 | 473 | u64 file_offset; |
8115d60c | 474 | union perf_event *event; |
c61e52ee FW |
475 | struct list_head list; |
476 | }; | |
477 | ||
020bb75a TG |
478 | static void perf_session_free_sample_buffers(struct perf_session *session) |
479 | { | |
480 | struct ordered_samples *os = &session->ordered_samples; | |
481 | ||
5c891f38 | 482 | while (!list_empty(&os->to_free)) { |
020bb75a TG |
483 | struct sample_queue *sq; |
484 | ||
5c891f38 | 485 | sq = list_entry(os->to_free.next, struct sample_queue, list); |
020bb75a TG |
486 | list_del(&sq->list); |
487 | free(sq); | |
488 | } | |
489 | } | |
490 | ||
cbf41645 | 491 | static int perf_session_deliver_event(struct perf_session *session, |
8115d60c | 492 | union perf_event *event, |
8d50e5b4 | 493 | struct perf_sample *sample, |
45694aa7 | 494 | struct perf_tool *tool, |
f74725dc | 495 | u64 file_offset); |
cbf41645 | 496 | |
d25380cd | 497 | static int flush_sample_queue(struct perf_session *s, |
9c501402 | 498 | struct perf_tool *tool) |
c61e52ee | 499 | { |
a1225dec TG |
500 | struct ordered_samples *os = &s->ordered_samples; |
501 | struct list_head *head = &os->samples; | |
c61e52ee | 502 | struct sample_queue *tmp, *iter; |
8d50e5b4 | 503 | struct perf_sample sample; |
a1225dec TG |
504 | u64 limit = os->next_flush; |
505 | u64 last_ts = os->last_sample ? os->last_sample->timestamp : 0ULL; | |
526fd8d4 | 506 | bool show_progress = limit == ULLONG_MAX; |
4d3001fd | 507 | struct ui_progress prog; |
5538beca | 508 | int ret; |
c61e52ee | 509 | |
45694aa7 | 510 | if (!tool->ordered_samples || !limit) |
d25380cd | 511 | return 0; |
c61e52ee | 512 | |
4d3001fd ACM |
513 | if (show_progress) |
514 | ui_progress__init(&prog, os->nr_samples, "Processing time ordered events..."); | |
515 | ||
c61e52ee | 516 | list_for_each_entry_safe(iter, tmp, head, list) { |
33e940a2 ACM |
517 | if (session_done()) |
518 | return 0; | |
519 | ||
c61e52ee | 520 | if (iter->timestamp > limit) |
a1225dec | 521 | break; |
c61e52ee | 522 | |
0807d2d8 | 523 | ret = perf_evlist__parse_sample(s->evlist, iter->event, &sample); |
5538beca FW |
524 | if (ret) |
525 | pr_err("Can't parse sample, err = %d\n", ret); | |
d25380cd DA |
526 | else { |
527 | ret = perf_session_deliver_event(s, iter->event, &sample, tool, | |
528 | iter->file_offset); | |
529 | if (ret) | |
530 | return ret; | |
531 | } | |
c61e52ee | 532 | |
a1225dec | 533 | os->last_flush = iter->timestamp; |
c61e52ee | 534 | list_del(&iter->list); |
020bb75a | 535 | list_add(&iter->list, &os->sample_cache); |
4d3001fd ACM |
536 | |
537 | if (show_progress) | |
538 | ui_progress__update(&prog, 1); | |
c61e52ee | 539 | } |
a1225dec TG |
540 | |
541 | if (list_empty(head)) { | |
542 | os->last_sample = NULL; | |
543 | } else if (last_ts <= limit) { | |
544 | os->last_sample = | |
545 | list_entry(head->prev, struct sample_queue, list); | |
546 | } | |
88660563 ACM |
547 | |
548 | os->nr_samples = 0; | |
d25380cd DA |
549 | |
550 | return 0; | |
c61e52ee FW |
551 | } |
552 | ||
d6b17beb FW |
553 | /* |
554 | * When perf record finishes a pass on every buffers, it records this pseudo | |
555 | * event. | |
556 | * We record the max timestamp t found in the pass n. | |
557 | * Assuming these timestamps are monotonic across cpus, we know that if | |
558 | * a buffer still has events with timestamps below t, they will be all | |
559 | * available and then read in the pass n + 1. | |
560 | * Hence when we start to read the pass n + 2, we can safely flush every | |
561 | * events with timestamps below t. | |
562 | * | |
563 | * ============ PASS n ================= | |
564 | * CPU 0 | CPU 1 | |
565 | * | | |
566 | * cnt1 timestamps | cnt2 timestamps | |
567 | * 1 | 2 | |
568 | * 2 | 3 | |
569 | * - | 4 <--- max recorded | |
570 | * | |
571 | * ============ PASS n + 1 ============== | |
572 | * CPU 0 | CPU 1 | |
573 | * | | |
574 | * cnt1 timestamps | cnt2 timestamps | |
575 | * 3 | 5 | |
576 | * 4 | 6 | |
577 | * 5 | 7 <---- max recorded | |
578 | * | |
579 | * Flush every events below timestamp 4 | |
580 | * | |
581 | * ============ PASS n + 2 ============== | |
582 | * CPU 0 | CPU 1 | |
583 | * | | |
584 | * cnt1 timestamps | cnt2 timestamps | |
585 | * 6 | 8 | |
586 | * 7 | 9 | |
587 | * - | 10 | |
588 | * | |
589 | * Flush every events below timestamp 7 | |
590 | * etc... | |
591 | */ | |
45694aa7 | 592 | static int process_finished_round(struct perf_tool *tool, |
1d037ca1 | 593 | union perf_event *event __maybe_unused, |
d20deb64 | 594 | struct perf_session *session) |
d6b17beb | 595 | { |
d25380cd DA |
596 | int ret = flush_sample_queue(session, tool); |
597 | if (!ret) | |
598 | session->ordered_samples.next_flush = session->ordered_samples.max_timestamp; | |
d6b17beb | 599 | |
d25380cd | 600 | return ret; |
d6b17beb FW |
601 | } |
602 | ||
c61e52ee | 603 | /* The queue is ordered by time */ |
cbf41645 | 604 | static void __queue_event(struct sample_queue *new, struct perf_session *s) |
c61e52ee | 605 | { |
a1225dec TG |
606 | struct ordered_samples *os = &s->ordered_samples; |
607 | struct sample_queue *sample = os->last_sample; | |
608 | u64 timestamp = new->timestamp; | |
609 | struct list_head *p; | |
c61e52ee | 610 | |
88660563 | 611 | ++os->nr_samples; |
a1225dec | 612 | os->last_sample = new; |
c61e52ee | 613 | |
a1225dec TG |
614 | if (!sample) { |
615 | list_add(&new->list, &os->samples); | |
616 | os->max_timestamp = timestamp; | |
c61e52ee FW |
617 | return; |
618 | } | |
619 | ||
620 | /* | |
a1225dec TG |
621 | * last_sample might point to some random place in the list as it's |
622 | * the last queued event. We expect that the new event is close to | |
623 | * this. | |
c61e52ee | 624 | */ |
a1225dec TG |
625 | if (sample->timestamp <= timestamp) { |
626 | while (sample->timestamp <= timestamp) { | |
627 | p = sample->list.next; | |
628 | if (p == &os->samples) { | |
629 | list_add_tail(&new->list, &os->samples); | |
630 | os->max_timestamp = timestamp; | |
631 | return; | |
632 | } | |
633 | sample = list_entry(p, struct sample_queue, list); | |
634 | } | |
635 | list_add_tail(&new->list, &sample->list); | |
636 | } else { | |
637 | while (sample->timestamp > timestamp) { | |
638 | p = sample->list.prev; | |
639 | if (p == &os->samples) { | |
640 | list_add(&new->list, &os->samples); | |
641 | return; | |
642 | } | |
643 | sample = list_entry(p, struct sample_queue, list); | |
644 | } | |
645 | list_add(&new->list, &sample->list); | |
646 | } | |
c61e52ee FW |
647 | } |
648 | ||
5c891f38 TG |
649 | #define MAX_SAMPLE_BUFFER (64 * 1024 / sizeof(struct sample_queue)) |
650 | ||
e30b88a7 | 651 | int perf_session_queue_event(struct perf_session *s, union perf_event *event, |
8d50e5b4 | 652 | struct perf_sample *sample, u64 file_offset) |
c61e52ee | 653 | { |
5c891f38 TG |
654 | struct ordered_samples *os = &s->ordered_samples; |
655 | struct list_head *sc = &os->sample_cache; | |
8d50e5b4 | 656 | u64 timestamp = sample->time; |
c61e52ee | 657 | struct sample_queue *new; |
c61e52ee | 658 | |
79a14c1f | 659 | if (!timestamp || timestamp == ~0ULL) |
cbf41645 TG |
660 | return -ETIME; |
661 | ||
c61e52ee FW |
662 | if (timestamp < s->ordered_samples.last_flush) { |
663 | printf("Warning: Timestamp below last timeslice flush\n"); | |
664 | return -EINVAL; | |
665 | } | |
666 | ||
020bb75a TG |
667 | if (!list_empty(sc)) { |
668 | new = list_entry(sc->next, struct sample_queue, list); | |
669 | list_del(&new->list); | |
5c891f38 TG |
670 | } else if (os->sample_buffer) { |
671 | new = os->sample_buffer + os->sample_buffer_idx; | |
672 | if (++os->sample_buffer_idx == MAX_SAMPLE_BUFFER) | |
673 | os->sample_buffer = NULL; | |
020bb75a | 674 | } else { |
5c891f38 TG |
675 | os->sample_buffer = malloc(MAX_SAMPLE_BUFFER * sizeof(*new)); |
676 | if (!os->sample_buffer) | |
020bb75a | 677 | return -ENOMEM; |
5c891f38 TG |
678 | list_add(&os->sample_buffer->list, &os->to_free); |
679 | os->sample_buffer_idx = 2; | |
680 | new = os->sample_buffer + 1; | |
020bb75a | 681 | } |
c61e52ee FW |
682 | |
683 | new->timestamp = timestamp; | |
e4c2df13 | 684 | new->file_offset = file_offset; |
fe174207 | 685 | new->event = event; |
c61e52ee | 686 | |
cbf41645 | 687 | __queue_event(new, s); |
640c03ce | 688 | |
640c03ce ACM |
689 | return 0; |
690 | } | |
c61e52ee | 691 | |
8d50e5b4 | 692 | static void callchain__printf(struct perf_sample *sample) |
640c03ce ACM |
693 | { |
694 | unsigned int i; | |
c61e52ee | 695 | |
9486aa38 | 696 | printf("... chain: nr:%" PRIu64 "\n", sample->callchain->nr); |
640c03ce ACM |
697 | |
698 | for (i = 0; i < sample->callchain->nr; i++) | |
9486aa38 ACM |
699 | printf("..... %2d: %016" PRIx64 "\n", |
700 | i, sample->callchain->ips[i]); | |
c61e52ee FW |
701 | } |
702 | ||
b5387528 RAV |
703 | static void branch_stack__printf(struct perf_sample *sample) |
704 | { | |
705 | uint64_t i; | |
706 | ||
707 | printf("... branch stack: nr:%" PRIu64 "\n", sample->branch_stack->nr); | |
708 | ||
709 | for (i = 0; i < sample->branch_stack->nr; i++) | |
710 | printf("..... %2"PRIu64": %016" PRIx64 " -> %016" PRIx64 "\n", | |
711 | i, sample->branch_stack->entries[i].from, | |
712 | sample->branch_stack->entries[i].to); | |
713 | } | |
714 | ||
0f6a3015 JO |
715 | static void regs_dump__printf(u64 mask, u64 *regs) |
716 | { | |
717 | unsigned rid, i = 0; | |
718 | ||
719 | for_each_set_bit(rid, (unsigned long *) &mask, sizeof(mask) * 8) { | |
720 | u64 val = regs[i++]; | |
721 | ||
722 | printf(".... %-5s 0x%" PRIx64 "\n", | |
723 | perf_reg_name(rid), val); | |
724 | } | |
725 | } | |
726 | ||
727 | static void regs_user__printf(struct perf_sample *sample, u64 mask) | |
728 | { | |
729 | struct regs_dump *user_regs = &sample->user_regs; | |
730 | ||
731 | if (user_regs->regs) { | |
732 | printf("... user regs: mask 0x%" PRIx64 "\n", mask); | |
733 | regs_dump__printf(mask, user_regs->regs); | |
734 | } | |
735 | } | |
736 | ||
737 | static void stack_user__printf(struct stack_dump *dump) | |
738 | { | |
739 | printf("... ustack: size %" PRIu64 ", offset 0x%x\n", | |
740 | dump->size, dump->offset); | |
741 | } | |
742 | ||
9c90a61c | 743 | static void perf_session__print_tstamp(struct perf_session *session, |
8115d60c | 744 | union perf_event *event, |
8d50e5b4 | 745 | struct perf_sample *sample) |
9c90a61c | 746 | { |
75562573 | 747 | u64 sample_type = __perf_evlist__combined_sample_type(session->evlist); |
7f3be652 | 748 | |
9c90a61c | 749 | if (event->header.type != PERF_RECORD_SAMPLE && |
5e562474 | 750 | !perf_evlist__sample_id_all(session->evlist)) { |
9c90a61c ACM |
751 | fputs("-1 -1 ", stdout); |
752 | return; | |
753 | } | |
754 | ||
7f3be652 | 755 | if ((sample_type & PERF_SAMPLE_CPU)) |
9c90a61c ACM |
756 | printf("%u ", sample->cpu); |
757 | ||
7f3be652 | 758 | if (sample_type & PERF_SAMPLE_TIME) |
9486aa38 | 759 | printf("%" PRIu64 " ", sample->time); |
9c90a61c ACM |
760 | } |
761 | ||
9ede473c JO |
762 | static void sample_read__printf(struct perf_sample *sample, u64 read_format) |
763 | { | |
764 | printf("... sample_read:\n"); | |
765 | ||
766 | if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED) | |
767 | printf("...... time enabled %016" PRIx64 "\n", | |
768 | sample->read.time_enabled); | |
769 | ||
770 | if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING) | |
771 | printf("...... time running %016" PRIx64 "\n", | |
772 | sample->read.time_running); | |
773 | ||
774 | if (read_format & PERF_FORMAT_GROUP) { | |
775 | u64 i; | |
776 | ||
777 | printf(".... group nr %" PRIu64 "\n", sample->read.group.nr); | |
778 | ||
779 | for (i = 0; i < sample->read.group.nr; i++) { | |
780 | struct sample_read_value *value; | |
781 | ||
782 | value = &sample->read.group.values[i]; | |
783 | printf("..... id %016" PRIx64 | |
784 | ", value %016" PRIx64 "\n", | |
785 | value->id, value->value); | |
786 | } | |
787 | } else | |
788 | printf("..... id %016" PRIx64 ", value %016" PRIx64 "\n", | |
789 | sample->read.one.id, sample->read.one.value); | |
790 | } | |
791 | ||
8115d60c | 792 | static void dump_event(struct perf_session *session, union perf_event *event, |
8d50e5b4 | 793 | u64 file_offset, struct perf_sample *sample) |
9aefcab0 TG |
794 | { |
795 | if (!dump_trace) | |
796 | return; | |
797 | ||
9486aa38 ACM |
798 | printf("\n%#" PRIx64 " [%#x]: event: %d\n", |
799 | file_offset, event->header.size, event->header.type); | |
9aefcab0 TG |
800 | |
801 | trace_event(event); | |
802 | ||
803 | if (sample) | |
804 | perf_session__print_tstamp(session, event, sample); | |
805 | ||
9486aa38 | 806 | printf("%#" PRIx64 " [%#x]: PERF_RECORD_%s", file_offset, |
8115d60c | 807 | event->header.size, perf_event__name(event->header.type)); |
9aefcab0 TG |
808 | } |
809 | ||
0f6a3015 | 810 | static void dump_sample(struct perf_evsel *evsel, union perf_event *event, |
8d50e5b4 | 811 | struct perf_sample *sample) |
9aefcab0 | 812 | { |
7f3be652 ACM |
813 | u64 sample_type; |
814 | ||
ddbc24b7 ACM |
815 | if (!dump_trace) |
816 | return; | |
817 | ||
7cec0922 | 818 | printf("(IP, %d): %d/%d: %#" PRIx64 " period: %" PRIu64 " addr: %#" PRIx64 "\n", |
9486aa38 | 819 | event->header.misc, sample->pid, sample->tid, sample->ip, |
7cec0922 | 820 | sample->period, sample->addr); |
9aefcab0 | 821 | |
0f6a3015 | 822 | sample_type = evsel->attr.sample_type; |
7f3be652 ACM |
823 | |
824 | if (sample_type & PERF_SAMPLE_CALLCHAIN) | |
ddbc24b7 | 825 | callchain__printf(sample); |
b5387528 | 826 | |
7f3be652 | 827 | if (sample_type & PERF_SAMPLE_BRANCH_STACK) |
b5387528 | 828 | branch_stack__printf(sample); |
0f6a3015 JO |
829 | |
830 | if (sample_type & PERF_SAMPLE_REGS_USER) | |
831 | regs_user__printf(sample, evsel->attr.sample_regs_user); | |
832 | ||
833 | if (sample_type & PERF_SAMPLE_STACK_USER) | |
834 | stack_user__printf(&sample->user_stack); | |
05484298 AK |
835 | |
836 | if (sample_type & PERF_SAMPLE_WEIGHT) | |
837 | printf("... weight: %" PRIu64 "\n", sample->weight); | |
98a3b32c SE |
838 | |
839 | if (sample_type & PERF_SAMPLE_DATA_SRC) | |
840 | printf(" . data_src: 0x%"PRIx64"\n", sample->data_src); | |
9ede473c | 841 | |
475eeab9 AK |
842 | if (sample_type & PERF_SAMPLE_TRANSACTION) |
843 | printf("... transaction: %" PRIx64 "\n", sample->transaction); | |
844 | ||
9ede473c JO |
845 | if (sample_type & PERF_SAMPLE_READ) |
846 | sample_read__printf(sample, evsel->attr.read_format); | |
9aefcab0 TG |
847 | } |
848 | ||
743eb868 ACM |
849 | static struct machine * |
850 | perf_session__find_machine_for_cpumode(struct perf_session *session, | |
ef89325f AH |
851 | union perf_event *event, |
852 | struct perf_sample *sample) | |
743eb868 ACM |
853 | { |
854 | const u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; | |
855 | ||
7c0f4a41 DA |
856 | if (perf_guest && |
857 | ((cpumode == PERF_RECORD_MISC_GUEST_KERNEL) || | |
858 | (cpumode == PERF_RECORD_MISC_GUEST_USER))) { | |
7fb0a5ee ND |
859 | u32 pid; |
860 | ||
5c5e854b SE |
861 | if (event->header.type == PERF_RECORD_MMAP |
862 | || event->header.type == PERF_RECORD_MMAP2) | |
7fb0a5ee ND |
863 | pid = event->mmap.pid; |
864 | else | |
ef89325f | 865 | pid = sample->pid; |
7fb0a5ee | 866 | |
207b5792 | 867 | return perf_session__findnew_machine(session, pid); |
7fb0a5ee | 868 | } |
743eb868 | 869 | |
34ba5122 | 870 | return &session->machines.host; |
743eb868 ACM |
871 | } |
872 | ||
e4caec0d JO |
873 | static int deliver_sample_value(struct perf_session *session, |
874 | struct perf_tool *tool, | |
875 | union perf_event *event, | |
876 | struct perf_sample *sample, | |
877 | struct sample_read_value *v, | |
878 | struct machine *machine) | |
879 | { | |
880 | struct perf_sample_id *sid; | |
881 | ||
882 | sid = perf_evlist__id2sid(session->evlist, v->id); | |
883 | if (sid) { | |
884 | sample->id = v->id; | |
885 | sample->period = v->value - sid->period; | |
886 | sid->period = v->value; | |
887 | } | |
888 | ||
889 | if (!sid || sid->evsel == NULL) { | |
890 | ++session->stats.nr_unknown_id; | |
891 | return 0; | |
892 | } | |
893 | ||
894 | return tool->sample(tool, event, sample, sid->evsel, machine); | |
895 | } | |
896 | ||
897 | static int deliver_sample_group(struct perf_session *session, | |
898 | struct perf_tool *tool, | |
899 | union perf_event *event, | |
900 | struct perf_sample *sample, | |
901 | struct machine *machine) | |
902 | { | |
903 | int ret = -EINVAL; | |
904 | u64 i; | |
905 | ||
906 | for (i = 0; i < sample->read.group.nr; i++) { | |
907 | ret = deliver_sample_value(session, tool, event, sample, | |
908 | &sample->read.group.values[i], | |
909 | machine); | |
910 | if (ret) | |
911 | break; | |
912 | } | |
913 | ||
914 | return ret; | |
915 | } | |
916 | ||
917 | static int | |
918 | perf_session__deliver_sample(struct perf_session *session, | |
919 | struct perf_tool *tool, | |
920 | union perf_event *event, | |
921 | struct perf_sample *sample, | |
922 | struct perf_evsel *evsel, | |
923 | struct machine *machine) | |
924 | { | |
925 | /* We know evsel != NULL. */ | |
926 | u64 sample_type = evsel->attr.sample_type; | |
927 | u64 read_format = evsel->attr.read_format; | |
928 | ||
929 | /* Standard sample delievery. */ | |
930 | if (!(sample_type & PERF_SAMPLE_READ)) | |
931 | return tool->sample(tool, event, sample, evsel, machine); | |
932 | ||
933 | /* For PERF_SAMPLE_READ we have either single or group mode. */ | |
934 | if (read_format & PERF_FORMAT_GROUP) | |
935 | return deliver_sample_group(session, tool, event, sample, | |
936 | machine); | |
937 | else | |
938 | return deliver_sample_value(session, tool, event, sample, | |
939 | &sample->read.one, machine); | |
940 | } | |
941 | ||
cbf41645 | 942 | static int perf_session_deliver_event(struct perf_session *session, |
8115d60c | 943 | union perf_event *event, |
8d50e5b4 | 944 | struct perf_sample *sample, |
45694aa7 | 945 | struct perf_tool *tool, |
532e7269 | 946 | u64 file_offset) |
cbf41645 | 947 | { |
9e69c210 | 948 | struct perf_evsel *evsel; |
743eb868 | 949 | struct machine *machine; |
9e69c210 | 950 | |
532e7269 TG |
951 | dump_event(session, event, file_offset, sample); |
952 | ||
7b27509f ACM |
953 | evsel = perf_evlist__id2evsel(session->evlist, sample->id); |
954 | if (evsel != NULL && event->header.type != PERF_RECORD_SAMPLE) { | |
955 | /* | |
956 | * XXX We're leaving PERF_RECORD_SAMPLE unnacounted here | |
957 | * because the tools right now may apply filters, discarding | |
958 | * some of the samples. For consistency, in the future we | |
959 | * should have something like nr_filtered_samples and remove | |
960 | * the sample->period from total_sample_period, etc, KISS for | |
961 | * now tho. | |
962 | * | |
963 | * Also testing against NULL allows us to handle files without | |
964 | * attr.sample_id_all and/or without PERF_SAMPLE_ID. In the | |
965 | * future probably it'll be a good idea to restrict event | |
966 | * processing via perf_session to files with both set. | |
967 | */ | |
968 | hists__inc_nr_events(&evsel->hists, event->header.type); | |
969 | } | |
970 | ||
ef89325f AH |
971 | machine = perf_session__find_machine_for_cpumode(session, event, |
972 | sample); | |
743eb868 | 973 | |
cbf41645 TG |
974 | switch (event->header.type) { |
975 | case PERF_RECORD_SAMPLE: | |
0f6a3015 | 976 | dump_sample(evsel, event, sample); |
9e69c210 | 977 | if (evsel == NULL) { |
28a6b6aa | 978 | ++session->stats.nr_unknown_id; |
6782206b | 979 | return 0; |
9e69c210 | 980 | } |
0c095715 | 981 | if (machine == NULL) { |
28a6b6aa | 982 | ++session->stats.nr_unprocessable_samples; |
6782206b | 983 | return 0; |
0c095715 | 984 | } |
e4caec0d JO |
985 | return perf_session__deliver_sample(session, tool, event, |
986 | sample, evsel, machine); | |
cbf41645 | 987 | case PERF_RECORD_MMAP: |
45694aa7 | 988 | return tool->mmap(tool, event, sample, machine); |
5c5e854b SE |
989 | case PERF_RECORD_MMAP2: |
990 | return tool->mmap2(tool, event, sample, machine); | |
cbf41645 | 991 | case PERF_RECORD_COMM: |
45694aa7 | 992 | return tool->comm(tool, event, sample, machine); |
cbf41645 | 993 | case PERF_RECORD_FORK: |
45694aa7 | 994 | return tool->fork(tool, event, sample, machine); |
cbf41645 | 995 | case PERF_RECORD_EXIT: |
45694aa7 | 996 | return tool->exit(tool, event, sample, machine); |
cbf41645 | 997 | case PERF_RECORD_LOST: |
45694aa7 | 998 | if (tool->lost == perf_event__process_lost) |
28a6b6aa | 999 | session->stats.total_lost += event->lost.lost; |
45694aa7 | 1000 | return tool->lost(tool, event, sample, machine); |
cbf41645 | 1001 | case PERF_RECORD_READ: |
45694aa7 | 1002 | return tool->read(tool, event, sample, evsel, machine); |
cbf41645 | 1003 | case PERF_RECORD_THROTTLE: |
45694aa7 | 1004 | return tool->throttle(tool, event, sample, machine); |
cbf41645 | 1005 | case PERF_RECORD_UNTHROTTLE: |
45694aa7 | 1006 | return tool->unthrottle(tool, event, sample, machine); |
cbf41645 | 1007 | default: |
28a6b6aa | 1008 | ++session->stats.nr_unknown_events; |
cbf41645 TG |
1009 | return -1; |
1010 | } | |
1011 | } | |
1012 | ||
8115d60c | 1013 | static int perf_session__process_user_event(struct perf_session *session, union perf_event *event, |
45694aa7 | 1014 | struct perf_tool *tool, u64 file_offset) |
06aae590 | 1015 | { |
cc9784bd | 1016 | int fd = perf_data_file__fd(session->file); |
10d0f086 ACM |
1017 | int err; |
1018 | ||
ba74f064 | 1019 | dump_event(session, event, file_offset, NULL); |
06aae590 | 1020 | |
cbf41645 | 1021 | /* These events are processed right away */ |
06aae590 | 1022 | switch (event->header.type) { |
2c46dbb5 | 1023 | case PERF_RECORD_HEADER_ATTR: |
47c3d109 | 1024 | err = tool->attr(tool, event, &session->evlist); |
10d0f086 | 1025 | if (err == 0) |
7b56cce2 | 1026 | perf_session__set_id_hdr_size(session); |
10d0f086 | 1027 | return err; |
9215545e TZ |
1028 | case PERF_RECORD_HEADER_TRACING_DATA: |
1029 | /* setup for reading amidst mmap */ | |
cc9784bd | 1030 | lseek(fd, file_offset, SEEK_SET); |
47c3d109 | 1031 | return tool->tracing_data(tool, event, session); |
c7929e47 | 1032 | case PERF_RECORD_HEADER_BUILD_ID: |
45694aa7 | 1033 | return tool->build_id(tool, event, session); |
d6b17beb | 1034 | case PERF_RECORD_FINISHED_ROUND: |
45694aa7 | 1035 | return tool->finished_round(tool, event, session); |
06aae590 | 1036 | default: |
ba74f064 | 1037 | return -EINVAL; |
06aae590 | 1038 | } |
ba74f064 TG |
1039 | } |
1040 | ||
268fb20f JO |
1041 | static void event_swap(union perf_event *event, bool sample_id_all) |
1042 | { | |
1043 | perf_event__swap_op swap; | |
1044 | ||
1045 | swap = perf_event__swap_ops[event->header.type]; | |
1046 | if (swap) | |
1047 | swap(event, sample_id_all); | |
1048 | } | |
1049 | ||
e30b88a7 DA |
1050 | static int perf_session__process_event(struct perf_session *session, |
1051 | union perf_event *event, | |
1052 | struct perf_tool *tool, | |
1053 | u64 file_offset) | |
ba74f064 | 1054 | { |
8d50e5b4 | 1055 | struct perf_sample sample; |
ba74f064 TG |
1056 | int ret; |
1057 | ||
268fb20f | 1058 | if (session->header.needs_swap) |
5e562474 | 1059 | event_swap(event, perf_evlist__sample_id_all(session->evlist)); |
ba74f064 TG |
1060 | |
1061 | if (event->header.type >= PERF_RECORD_HEADER_MAX) | |
1062 | return -EINVAL; | |
1063 | ||
28a6b6aa | 1064 | events_stats__inc(&session->stats, event->header.type); |
ba74f064 TG |
1065 | |
1066 | if (event->header.type >= PERF_RECORD_USER_TYPE_START) | |
45694aa7 | 1067 | return perf_session__process_user_event(session, event, tool, file_offset); |
cbf41645 | 1068 | |
3dfc2c0a TG |
1069 | /* |
1070 | * For all kernel events we get the sample data | |
1071 | */ | |
0807d2d8 | 1072 | ret = perf_evlist__parse_sample(session->evlist, event, &sample); |
5538beca FW |
1073 | if (ret) |
1074 | return ret; | |
3dfc2c0a | 1075 | |
45694aa7 | 1076 | if (tool->ordered_samples) { |
e4c2df13 TG |
1077 | ret = perf_session_queue_event(session, event, &sample, |
1078 | file_offset); | |
cbf41645 TG |
1079 | if (ret != -ETIME) |
1080 | return ret; | |
1081 | } | |
1082 | ||
45694aa7 | 1083 | return perf_session_deliver_event(session, event, &sample, tool, |
f74725dc | 1084 | file_offset); |
06aae590 ACM |
1085 | } |
1086 | ||
ba21594c ACM |
1087 | void perf_event_header__bswap(struct perf_event_header *self) |
1088 | { | |
1089 | self->type = bswap_32(self->type); | |
1090 | self->misc = bswap_16(self->misc); | |
1091 | self->size = bswap_16(self->size); | |
1092 | } | |
1093 | ||
b424eba2 ACM |
1094 | struct thread *perf_session__findnew(struct perf_session *session, pid_t pid) |
1095 | { | |
314add6b | 1096 | return machine__findnew_thread(&session->machines.host, 0, pid); |
b424eba2 ACM |
1097 | } |
1098 | ||
06aae590 ACM |
1099 | static struct thread *perf_session__register_idle_thread(struct perf_session *self) |
1100 | { | |
1101 | struct thread *thread = perf_session__findnew(self, 0); | |
1102 | ||
1103 | if (thread == NULL || thread__set_comm(thread, "swapper")) { | |
1104 | pr_err("problem inserting idle task.\n"); | |
1105 | thread = NULL; | |
1106 | } | |
1107 | ||
1108 | return thread; | |
1109 | } | |
1110 | ||
11095994 | 1111 | static void perf_session__warn_about_errors(const struct perf_session *session, |
45694aa7 | 1112 | const struct perf_tool *tool) |
11095994 | 1113 | { |
45694aa7 | 1114 | if (tool->lost == perf_event__process_lost && |
28a6b6aa | 1115 | session->stats.nr_events[PERF_RECORD_LOST] != 0) { |
7b27509f ACM |
1116 | ui__warning("Processed %d events and lost %d chunks!\n\n" |
1117 | "Check IO/CPU overload!\n\n", | |
28a6b6aa ACM |
1118 | session->stats.nr_events[0], |
1119 | session->stats.nr_events[PERF_RECORD_LOST]); | |
11095994 ACM |
1120 | } |
1121 | ||
28a6b6aa | 1122 | if (session->stats.nr_unknown_events != 0) { |
11095994 ACM |
1123 | ui__warning("Found %u unknown events!\n\n" |
1124 | "Is this an older tool processing a perf.data " | |
1125 | "file generated by a more recent tool?\n\n" | |
1126 | "If that is not the case, consider " | |
1127 | "reporting to linux-kernel@vger.kernel.org.\n\n", | |
28a6b6aa | 1128 | session->stats.nr_unknown_events); |
11095994 ACM |
1129 | } |
1130 | ||
28a6b6aa | 1131 | if (session->stats.nr_unknown_id != 0) { |
9e69c210 | 1132 | ui__warning("%u samples with id not present in the header\n", |
28a6b6aa | 1133 | session->stats.nr_unknown_id); |
9e69c210 ACM |
1134 | } |
1135 | ||
28a6b6aa | 1136 | if (session->stats.nr_invalid_chains != 0) { |
11095994 ACM |
1137 | ui__warning("Found invalid callchains!\n\n" |
1138 | "%u out of %u events were discarded for this reason.\n\n" | |
1139 | "Consider reporting to linux-kernel@vger.kernel.org.\n\n", | |
28a6b6aa ACM |
1140 | session->stats.nr_invalid_chains, |
1141 | session->stats.nr_events[PERF_RECORD_SAMPLE]); | |
11095994 | 1142 | } |
0c095715 | 1143 | |
28a6b6aa | 1144 | if (session->stats.nr_unprocessable_samples != 0) { |
0c095715 JR |
1145 | ui__warning("%u unprocessable samples recorded.\n" |
1146 | "Do you have a KVM guest running and not using 'perf kvm'?\n", | |
28a6b6aa | 1147 | session->stats.nr_unprocessable_samples); |
0c095715 | 1148 | } |
11095994 ACM |
1149 | } |
1150 | ||
8dc58101 TZ |
1151 | volatile int session_done; |
1152 | ||
1153 | static int __perf_session__process_pipe_events(struct perf_session *self, | |
45694aa7 | 1154 | struct perf_tool *tool) |
8dc58101 | 1155 | { |
cc9784bd | 1156 | int fd = perf_data_file__fd(self->file); |
444d2866 SE |
1157 | union perf_event *event; |
1158 | uint32_t size, cur_size = 0; | |
1159 | void *buf = NULL; | |
8dc58101 TZ |
1160 | int skip = 0; |
1161 | u64 head; | |
1162 | int err; | |
1163 | void *p; | |
1164 | ||
45694aa7 | 1165 | perf_tool__fill_defaults(tool); |
8dc58101 TZ |
1166 | |
1167 | head = 0; | |
444d2866 SE |
1168 | cur_size = sizeof(union perf_event); |
1169 | ||
1170 | buf = malloc(cur_size); | |
1171 | if (!buf) | |
1172 | return -errno; | |
8dc58101 | 1173 | more: |
444d2866 | 1174 | event = buf; |
cc9784bd | 1175 | err = readn(fd, event, sizeof(struct perf_event_header)); |
8dc58101 TZ |
1176 | if (err <= 0) { |
1177 | if (err == 0) | |
1178 | goto done; | |
1179 | ||
1180 | pr_err("failed to read event header\n"); | |
1181 | goto out_err; | |
1182 | } | |
1183 | ||
1184 | if (self->header.needs_swap) | |
444d2866 | 1185 | perf_event_header__bswap(&event->header); |
8dc58101 | 1186 | |
444d2866 | 1187 | size = event->header.size; |
27389d78 AH |
1188 | if (size < sizeof(struct perf_event_header)) { |
1189 | pr_err("bad event header size\n"); | |
1190 | goto out_err; | |
1191 | } | |
8dc58101 | 1192 | |
444d2866 SE |
1193 | if (size > cur_size) { |
1194 | void *new = realloc(buf, size); | |
1195 | if (!new) { | |
1196 | pr_err("failed to allocate memory to read event\n"); | |
1197 | goto out_err; | |
1198 | } | |
1199 | buf = new; | |
1200 | cur_size = size; | |
1201 | event = buf; | |
1202 | } | |
1203 | p = event; | |
8dc58101 TZ |
1204 | p += sizeof(struct perf_event_header); |
1205 | ||
794e43b5 | 1206 | if (size - sizeof(struct perf_event_header)) { |
cc9784bd | 1207 | err = readn(fd, p, size - sizeof(struct perf_event_header)); |
794e43b5 TZ |
1208 | if (err <= 0) { |
1209 | if (err == 0) { | |
1210 | pr_err("unexpected end of event stream\n"); | |
1211 | goto done; | |
1212 | } | |
8dc58101 | 1213 | |
794e43b5 TZ |
1214 | pr_err("failed to read event data\n"); |
1215 | goto out_err; | |
1216 | } | |
8dc58101 TZ |
1217 | } |
1218 | ||
444d2866 | 1219 | if ((skip = perf_session__process_event(self, event, tool, head)) < 0) { |
9389a460 | 1220 | pr_err("%#" PRIx64 " [%#x]: failed to process type: %d\n", |
444d2866 | 1221 | head, event->header.size, event->header.type); |
9389a460 JO |
1222 | err = -EINVAL; |
1223 | goto out_err; | |
8dc58101 TZ |
1224 | } |
1225 | ||
1226 | head += size; | |
1227 | ||
8dc58101 TZ |
1228 | if (skip > 0) |
1229 | head += skip; | |
1230 | ||
1231 | if (!session_done()) | |
1232 | goto more; | |
1233 | done: | |
8c16b649 AH |
1234 | /* do the final flush for ordered samples */ |
1235 | self->ordered_samples.next_flush = ULLONG_MAX; | |
1236 | err = flush_sample_queue(self, tool); | |
8dc58101 | 1237 | out_err: |
444d2866 | 1238 | free(buf); |
45694aa7 | 1239 | perf_session__warn_about_errors(self, tool); |
020bb75a | 1240 | perf_session_free_sample_buffers(self); |
8dc58101 TZ |
1241 | return err; |
1242 | } | |
1243 | ||
998bedc8 FW |
1244 | static union perf_event * |
1245 | fetch_mmaped_event(struct perf_session *session, | |
1246 | u64 head, size_t mmap_size, char *buf) | |
1247 | { | |
1248 | union perf_event *event; | |
1249 | ||
1250 | /* | |
1251 | * Ensure we have enough space remaining to read | |
1252 | * the size of the event in the headers. | |
1253 | */ | |
1254 | if (head + sizeof(event->header) > mmap_size) | |
1255 | return NULL; | |
1256 | ||
1257 | event = (union perf_event *)(buf + head); | |
1258 | ||
1259 | if (session->header.needs_swap) | |
1260 | perf_event_header__bswap(&event->header); | |
1261 | ||
27389d78 AH |
1262 | if (head + event->header.size > mmap_size) { |
1263 | /* We're not fetching the event so swap back again */ | |
1264 | if (session->header.needs_swap) | |
1265 | perf_event_header__bswap(&event->header); | |
998bedc8 | 1266 | return NULL; |
27389d78 | 1267 | } |
998bedc8 FW |
1268 | |
1269 | return event; | |
1270 | } | |
1271 | ||
35d48ddf DM |
1272 | /* |
1273 | * On 64bit we can mmap the data file in one go. No need for tiny mmap | |
1274 | * slices. On 32bit we use 32MB. | |
1275 | */ | |
1276 | #if BITS_PER_LONG == 64 | |
1277 | #define MMAP_SIZE ULLONG_MAX | |
1278 | #define NUM_MMAPS 1 | |
1279 | #else | |
1280 | #define MMAP_SIZE (32 * 1024 * 1024ULL) | |
1281 | #define NUM_MMAPS 128 | |
1282 | #endif | |
1283 | ||
0331ee0c | 1284 | int __perf_session__process_events(struct perf_session *session, |
6122e4e4 | 1285 | u64 data_offset, u64 data_size, |
45694aa7 | 1286 | u64 file_size, struct perf_tool *tool) |
06aae590 | 1287 | { |
cc9784bd | 1288 | int fd = perf_data_file__fd(session->file); |
4d3001fd | 1289 | u64 head, page_offset, file_offset, file_pos; |
fe174207 | 1290 | int err, mmap_prot, mmap_flags, map_idx = 0; |
0c1fe6b2 | 1291 | size_t mmap_size; |
35d48ddf | 1292 | char *buf, *mmaps[NUM_MMAPS]; |
8115d60c | 1293 | union perf_event *event; |
06aae590 | 1294 | uint32_t size; |
4d3001fd | 1295 | struct ui_progress prog; |
0331ee0c | 1296 | |
45694aa7 | 1297 | perf_tool__fill_defaults(tool); |
06aae590 | 1298 | |
0331ee0c TG |
1299 | page_offset = page_size * (data_offset / page_size); |
1300 | file_offset = page_offset; | |
1301 | head = data_offset - page_offset; | |
06aae590 | 1302 | |
b314e5cf | 1303 | if (data_size && (data_offset + data_size < file_size)) |
d6513281 TG |
1304 | file_size = data_offset + data_size; |
1305 | ||
4d3001fd | 1306 | ui_progress__init(&prog, file_size, "Processing events..."); |
55b44629 | 1307 | |
35d48ddf | 1308 | mmap_size = MMAP_SIZE; |
55b44629 TG |
1309 | if (mmap_size > file_size) |
1310 | mmap_size = file_size; | |
1311 | ||
fe174207 TG |
1312 | memset(mmaps, 0, sizeof(mmaps)); |
1313 | ||
ba21594c ACM |
1314 | mmap_prot = PROT_READ; |
1315 | mmap_flags = MAP_SHARED; | |
1316 | ||
0331ee0c | 1317 | if (session->header.needs_swap) { |
ba21594c ACM |
1318 | mmap_prot |= PROT_WRITE; |
1319 | mmap_flags = MAP_PRIVATE; | |
1320 | } | |
06aae590 | 1321 | remap: |
cc9784bd | 1322 | buf = mmap(NULL, mmap_size, mmap_prot, mmap_flags, fd, |
55b44629 | 1323 | file_offset); |
06aae590 ACM |
1324 | if (buf == MAP_FAILED) { |
1325 | pr_err("failed to mmap file\n"); | |
1326 | err = -errno; | |
1327 | goto out_err; | |
1328 | } | |
fe174207 TG |
1329 | mmaps[map_idx] = buf; |
1330 | map_idx = (map_idx + 1) & (ARRAY_SIZE(mmaps) - 1); | |
d6513281 | 1331 | file_pos = file_offset + head; |
06aae590 ACM |
1332 | |
1333 | more: | |
998bedc8 FW |
1334 | event = fetch_mmaped_event(session, head, mmap_size, buf); |
1335 | if (!event) { | |
fe174207 TG |
1336 | if (mmaps[map_idx]) { |
1337 | munmap(mmaps[map_idx], mmap_size); | |
1338 | mmaps[map_idx] = NULL; | |
1339 | } | |
06aae590 | 1340 | |
0331ee0c TG |
1341 | page_offset = page_size * (head / page_size); |
1342 | file_offset += page_offset; | |
1343 | head -= page_offset; | |
06aae590 ACM |
1344 | goto remap; |
1345 | } | |
1346 | ||
1347 | size = event->header.size; | |
1348 | ||
27389d78 | 1349 | if (size < sizeof(struct perf_event_header) || |
45694aa7 | 1350 | perf_session__process_event(session, event, tool, file_pos) < 0) { |
9389a460 JO |
1351 | pr_err("%#" PRIx64 " [%#x]: failed to process type: %d\n", |
1352 | file_offset + head, event->header.size, | |
1353 | event->header.type); | |
1354 | err = -EINVAL; | |
1355 | goto out_err; | |
06aae590 ACM |
1356 | } |
1357 | ||
1358 | head += size; | |
d6513281 | 1359 | file_pos += size; |
06aae590 | 1360 | |
4d3001fd | 1361 | ui_progress__update(&prog, size); |
55b44629 | 1362 | |
33e940a2 | 1363 | if (session_done()) |
8c16b649 | 1364 | goto out; |
33e940a2 | 1365 | |
d6513281 | 1366 | if (file_pos < file_size) |
06aae590 | 1367 | goto more; |
d6513281 | 1368 | |
8c16b649 | 1369 | out: |
c61e52ee | 1370 | /* do the final flush for ordered samples */ |
0331ee0c | 1371 | session->ordered_samples.next_flush = ULLONG_MAX; |
d25380cd | 1372 | err = flush_sample_queue(session, tool); |
06aae590 | 1373 | out_err: |
a5580f3e | 1374 | ui_progress__finish(); |
45694aa7 | 1375 | perf_session__warn_about_errors(session, tool); |
020bb75a | 1376 | perf_session_free_sample_buffers(session); |
06aae590 ACM |
1377 | return err; |
1378 | } | |
27295592 | 1379 | |
6122e4e4 | 1380 | int perf_session__process_events(struct perf_session *self, |
45694aa7 | 1381 | struct perf_tool *tool) |
6122e4e4 | 1382 | { |
cc9784bd | 1383 | u64 size = perf_data_file__size(self->file); |
6122e4e4 ACM |
1384 | int err; |
1385 | ||
1386 | if (perf_session__register_idle_thread(self) == NULL) | |
1387 | return -ENOMEM; | |
1388 | ||
cc9784bd | 1389 | if (!perf_data_file__is_pipe(self->file)) |
8dc58101 TZ |
1390 | err = __perf_session__process_events(self, |
1391 | self->header.data_offset, | |
1392 | self->header.data_size, | |
cc9784bd | 1393 | size, tool); |
8dc58101 | 1394 | else |
45694aa7 | 1395 | err = __perf_session__process_pipe_events(self, tool); |
88ca895d | 1396 | |
6122e4e4 ACM |
1397 | return err; |
1398 | } | |
1399 | ||
7f3be652 | 1400 | bool perf_session__has_traces(struct perf_session *session, const char *msg) |
27295592 | 1401 | { |
93ea01c2 DA |
1402 | struct perf_evsel *evsel; |
1403 | ||
1404 | list_for_each_entry(evsel, &session->evlist->entries, node) { | |
1405 | if (evsel->attr.type == PERF_TYPE_TRACEPOINT) | |
1406 | return true; | |
27295592 ACM |
1407 | } |
1408 | ||
93ea01c2 DA |
1409 | pr_err("No trace sample to read. Did you call 'perf %s'?\n", msg); |
1410 | return false; | |
27295592 | 1411 | } |
56b03f3c | 1412 | |
743eb868 ACM |
1413 | int maps__set_kallsyms_ref_reloc_sym(struct map **maps, |
1414 | const char *symbol_name, u64 addr) | |
56b03f3c ACM |
1415 | { |
1416 | char *bracket; | |
9de89fe7 | 1417 | enum map_type i; |
a1645ce1 ZY |
1418 | struct ref_reloc_sym *ref; |
1419 | ||
1420 | ref = zalloc(sizeof(struct ref_reloc_sym)); | |
1421 | if (ref == NULL) | |
1422 | return -ENOMEM; | |
56b03f3c | 1423 | |
a1645ce1 ZY |
1424 | ref->name = strdup(symbol_name); |
1425 | if (ref->name == NULL) { | |
1426 | free(ref); | |
56b03f3c | 1427 | return -ENOMEM; |
a1645ce1 | 1428 | } |
56b03f3c | 1429 | |
a1645ce1 | 1430 | bracket = strchr(ref->name, ']'); |
56b03f3c ACM |
1431 | if (bracket) |
1432 | *bracket = '\0'; | |
1433 | ||
a1645ce1 | 1434 | ref->addr = addr; |
9de89fe7 ACM |
1435 | |
1436 | for (i = 0; i < MAP__NR_TYPES; ++i) { | |
a1645ce1 ZY |
1437 | struct kmap *kmap = map__kmap(maps[i]); |
1438 | kmap->ref_reloc_sym = ref; | |
9de89fe7 ACM |
1439 | } |
1440 | ||
56b03f3c ACM |
1441 | return 0; |
1442 | } | |
1f626bc3 ACM |
1443 | |
1444 | size_t perf_session__fprintf_dsos(struct perf_session *self, FILE *fp) | |
1445 | { | |
876650e6 | 1446 | return machines__fprintf_dsos(&self->machines, fp); |
1f626bc3 | 1447 | } |
f869097e ACM |
1448 | |
1449 | size_t perf_session__fprintf_dsos_buildid(struct perf_session *self, FILE *fp, | |
417c2ff6 | 1450 | bool (skip)(struct dso *dso, int parm), int parm) |
f869097e | 1451 | { |
876650e6 | 1452 | return machines__fprintf_dsos_buildid(&self->machines, fp, skip, parm); |
f869097e | 1453 | } |
e248de33 ACM |
1454 | |
1455 | size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp) | |
1456 | { | |
1457 | struct perf_evsel *pos; | |
1458 | size_t ret = fprintf(fp, "Aggregated stats:\n"); | |
1459 | ||
28a6b6aa | 1460 | ret += events_stats__fprintf(&session->stats, fp); |
e248de33 ACM |
1461 | |
1462 | list_for_each_entry(pos, &session->evlist->entries, node) { | |
7289f83c | 1463 | ret += fprintf(fp, "%s stats:\n", perf_evsel__name(pos)); |
52168eea | 1464 | ret += events_stats__fprintf(&pos->hists.stats, fp); |
e248de33 ACM |
1465 | } |
1466 | ||
1467 | return ret; | |
1468 | } | |
c0230b2b | 1469 | |
b424eba2 ACM |
1470 | size_t perf_session__fprintf(struct perf_session *session, FILE *fp) |
1471 | { | |
1472 | /* | |
1473 | * FIXME: Here we have to actually print all the machines in this | |
1474 | * session, not just the host... | |
1475 | */ | |
876650e6 | 1476 | return machine__fprintf(&session->machines.host, fp); |
b424eba2 ACM |
1477 | } |
1478 | ||
9cbdb702 DA |
1479 | struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session, |
1480 | unsigned int type) | |
1481 | { | |
1482 | struct perf_evsel *pos; | |
1483 | ||
1484 | list_for_each_entry(pos, &session->evlist->entries, node) { | |
1485 | if (pos->attr.type == type) | |
1486 | return pos; | |
1487 | } | |
1488 | return NULL; | |
1489 | } | |
1490 | ||
71ad0f5e JO |
1491 | void perf_evsel__print_ip(struct perf_evsel *evsel, union perf_event *event, |
1492 | struct perf_sample *sample, struct machine *machine, | |
307cbb92 | 1493 | unsigned int print_opts, unsigned int stack_depth) |
c0230b2b DA |
1494 | { |
1495 | struct addr_location al; | |
c0230b2b | 1496 | struct callchain_cursor_node *node; |
a6ffaf91 DA |
1497 | int print_ip = print_opts & PRINT_IP_OPT_IP; |
1498 | int print_sym = print_opts & PRINT_IP_OPT_SYM; | |
1499 | int print_dso = print_opts & PRINT_IP_OPT_DSO; | |
1500 | int print_symoffset = print_opts & PRINT_IP_OPT_SYMOFFSET; | |
b0b35f01 DA |
1501 | int print_oneline = print_opts & PRINT_IP_OPT_ONELINE; |
1502 | char s = print_oneline ? ' ' : '\t'; | |
c0230b2b | 1503 | |
e44baa3e | 1504 | if (perf_event__preprocess_sample(event, machine, &al, sample) < 0) { |
c0230b2b DA |
1505 | error("problem processing %d event, skipping it.\n", |
1506 | event->header.type); | |
1507 | return; | |
1508 | } | |
1509 | ||
1510 | if (symbol_conf.use_callchain && sample->callchain) { | |
1511 | ||
71ad0f5e | 1512 | if (machine__resolve_callchain(machine, evsel, al.thread, |
91e95617 WL |
1513 | sample, NULL, NULL, |
1514 | PERF_MAX_STACK_DEPTH) != 0) { | |
c0230b2b DA |
1515 | if (verbose) |
1516 | error("Failed to resolve callchain. Skipping\n"); | |
1517 | return; | |
1518 | } | |
47260645 | 1519 | callchain_cursor_commit(&callchain_cursor); |
c0230b2b | 1520 | |
307cbb92 | 1521 | while (stack_depth) { |
47260645 | 1522 | node = callchain_cursor_current(&callchain_cursor); |
c0230b2b DA |
1523 | if (!node) |
1524 | break; | |
1525 | ||
a6ffaf91 | 1526 | if (print_ip) |
b0b35f01 | 1527 | printf("%c%16" PRIx64, s, node->ip); |
a6ffaf91 | 1528 | |
787bef17 | 1529 | if (print_sym) { |
547a92e0 | 1530 | printf(" "); |
251f426f DA |
1531 | if (print_symoffset) { |
1532 | al.addr = node->ip; | |
0b8c25d9 | 1533 | al.map = node->map; |
251f426f DA |
1534 | symbol__fprintf_symname_offs(node->sym, &al, stdout); |
1535 | } else | |
1536 | symbol__fprintf_symname(node->sym, stdout); | |
610723f2 | 1537 | } |
251f426f | 1538 | |
610723f2 | 1539 | if (print_dso) { |
547a92e0 | 1540 | printf(" ("); |
52deff71 | 1541 | map__fprintf_dsoname(node->map, stdout); |
547a92e0 | 1542 | printf(")"); |
787bef17 | 1543 | } |
b0b35f01 DA |
1544 | |
1545 | if (!print_oneline) | |
1546 | printf("\n"); | |
c0230b2b | 1547 | |
47260645 | 1548 | callchain_cursor_advance(&callchain_cursor); |
307cbb92 DA |
1549 | |
1550 | stack_depth--; | |
c0230b2b DA |
1551 | } |
1552 | ||
1553 | } else { | |
a6ffaf91 DA |
1554 | if (print_ip) |
1555 | printf("%16" PRIx64, sample->ip); | |
1556 | ||
787bef17 | 1557 | if (print_sym) { |
547a92e0 | 1558 | printf(" "); |
a978f2ab AN |
1559 | if (print_symoffset) |
1560 | symbol__fprintf_symname_offs(al.sym, &al, | |
1561 | stdout); | |
1562 | else | |
1563 | symbol__fprintf_symname(al.sym, stdout); | |
610723f2 DA |
1564 | } |
1565 | ||
1566 | if (print_dso) { | |
547a92e0 AN |
1567 | printf(" ("); |
1568 | map__fprintf_dsoname(al.map, stdout); | |
1569 | printf(")"); | |
787bef17 | 1570 | } |
c0230b2b DA |
1571 | } |
1572 | } | |
5d67be97 AB |
1573 | |
1574 | int perf_session__cpu_bitmap(struct perf_session *session, | |
1575 | const char *cpu_list, unsigned long *cpu_bitmap) | |
1576 | { | |
1577 | int i; | |
1578 | struct cpu_map *map; | |
1579 | ||
1580 | for (i = 0; i < PERF_TYPE_MAX; ++i) { | |
1581 | struct perf_evsel *evsel; | |
1582 | ||
1583 | evsel = perf_session__find_first_evtype(session, i); | |
1584 | if (!evsel) | |
1585 | continue; | |
1586 | ||
1587 | if (!(evsel->attr.sample_type & PERF_SAMPLE_CPU)) { | |
1588 | pr_err("File does not contain CPU events. " | |
1589 | "Remove -c option to proceed.\n"); | |
1590 | return -1; | |
1591 | } | |
1592 | } | |
1593 | ||
1594 | map = cpu_map__new(cpu_list); | |
47fbe53b DA |
1595 | if (map == NULL) { |
1596 | pr_err("Invalid cpu_list\n"); | |
1597 | return -1; | |
1598 | } | |
5d67be97 AB |
1599 | |
1600 | for (i = 0; i < map->nr; i++) { | |
1601 | int cpu = map->map[i]; | |
1602 | ||
1603 | if (cpu >= MAX_NR_CPUS) { | |
1604 | pr_err("Requested CPU %d too large. " | |
1605 | "Consider raising MAX_NR_CPUS\n", cpu); | |
1606 | return -1; | |
1607 | } | |
1608 | ||
1609 | set_bit(cpu, cpu_bitmap); | |
1610 | } | |
1611 | ||
1612 | return 0; | |
1613 | } | |
fbe96f29 SE |
1614 | |
1615 | void perf_session__fprintf_info(struct perf_session *session, FILE *fp, | |
1616 | bool full) | |
1617 | { | |
cc9784bd | 1618 | int fd = perf_data_file__fd(session->file); |
fbe96f29 SE |
1619 | struct stat st; |
1620 | int ret; | |
1621 | ||
1622 | if (session == NULL || fp == NULL) | |
1623 | return; | |
1624 | ||
cc9784bd | 1625 | ret = fstat(fd, &st); |
fbe96f29 SE |
1626 | if (ret == -1) |
1627 | return; | |
1628 | ||
1629 | fprintf(fp, "# ========\n"); | |
1630 | fprintf(fp, "# captured on: %s", ctime(&st.st_ctime)); | |
1631 | perf_header__fprintf_info(session, fp, full); | |
1632 | fprintf(fp, "# ========\n#\n"); | |
1633 | } | |
da378962 ACM |
1634 | |
1635 | ||
1636 | int __perf_session__set_tracepoints_handlers(struct perf_session *session, | |
1637 | const struct perf_evsel_str_handler *assocs, | |
1638 | size_t nr_assocs) | |
1639 | { | |
da378962 | 1640 | struct perf_evsel *evsel; |
da378962 ACM |
1641 | size_t i; |
1642 | int err; | |
1643 | ||
1644 | for (i = 0; i < nr_assocs; i++) { | |
ccf53eac ACM |
1645 | /* |
1646 | * Adding a handler for an event not in the session, | |
1647 | * just ignore it. | |
1648 | */ | |
1649 | evsel = perf_evlist__find_tracepoint_by_name(session->evlist, assocs[i].name); | |
da378962 | 1650 | if (evsel == NULL) |
ccf53eac | 1651 | continue; |
da378962 ACM |
1652 | |
1653 | err = -EEXIST; | |
1654 | if (evsel->handler.func != NULL) | |
ccf53eac | 1655 | goto out; |
da378962 | 1656 | evsel->handler.func = assocs[i].handler; |
da378962 ACM |
1657 | } |
1658 | ||
1659 | err = 0; | |
1660 | out: | |
1661 | return err; | |
da378962 | 1662 | } |