Commit | Line | Data |
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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" |
94c744b6 | 17 | |
316c7136 | 18 | static int perf_session__open(struct perf_session *session) |
94c744b6 | 19 | { |
316c7136 | 20 | struct perf_data_file *file = session->file; |
8dc58101 | 21 | |
316c7136 | 22 | if (perf_session__read_header(session) < 0) { |
69996df4 | 23 | pr_err("incompatible file format (rerun with -v to learn more)"); |
6a4d98d7 | 24 | return -1; |
94c744b6 ACM |
25 | } |
26 | ||
cc9784bd JO |
27 | if (perf_data_file__is_pipe(file)) |
28 | return 0; | |
29 | ||
316c7136 | 30 | if (!perf_evlist__valid_sample_type(session->evlist)) { |
c2a70653 | 31 | pr_err("non matching sample_type"); |
6a4d98d7 | 32 | return -1; |
c2a70653 ACM |
33 | } |
34 | ||
316c7136 | 35 | if (!perf_evlist__valid_sample_id_all(session->evlist)) { |
c2a70653 | 36 | pr_err("non matching sample_id_all"); |
6a4d98d7 | 37 | return -1; |
c2a70653 ACM |
38 | } |
39 | ||
316c7136 | 40 | if (!perf_evlist__valid_read_format(session->evlist)) { |
9ede473c | 41 | pr_err("non matching read_format"); |
6a4d98d7 | 42 | return -1; |
9ede473c JO |
43 | } |
44 | ||
94c744b6 | 45 | return 0; |
94c744b6 ACM |
46 | } |
47 | ||
7b56cce2 | 48 | void perf_session__set_id_hdr_size(struct perf_session *session) |
9c90a61c | 49 | { |
7b56cce2 ACM |
50 | u16 id_hdr_size = perf_evlist__id_hdr_size(session->evlist); |
51 | ||
7b56cce2 | 52 | machines__set_id_hdr_size(&session->machines, id_hdr_size); |
9c90a61c ACM |
53 | } |
54 | ||
316c7136 | 55 | int perf_session__create_kernel_maps(struct perf_session *session) |
a1645ce1 | 56 | { |
316c7136 | 57 | int ret = machine__create_kernel_maps(&session->machines.host); |
a1645ce1 | 58 | |
a1645ce1 | 59 | if (ret >= 0) |
316c7136 | 60 | ret = machines__create_guest_kernel_maps(&session->machines); |
a1645ce1 ZY |
61 | return ret; |
62 | } | |
63 | ||
316c7136 | 64 | static void perf_session__destroy_kernel_maps(struct perf_session *session) |
076c6e45 | 65 | { |
316c7136 | 66 | machines__destroy_kernel_maps(&session->machines); |
076c6e45 ACM |
67 | } |
68 | ||
f5fc1412 JO |
69 | struct perf_session *perf_session__new(struct perf_data_file *file, |
70 | bool repipe, struct perf_tool *tool) | |
94c744b6 | 71 | { |
316c7136 | 72 | struct perf_session *session = zalloc(sizeof(*session)); |
efad1415 | 73 | |
316c7136 | 74 | if (!session) |
94c744b6 ACM |
75 | goto out; |
76 | ||
316c7136 | 77 | session->repipe = repipe; |
fc12482f JO |
78 | INIT_LIST_HEAD(&session->ordered_events.events); |
79 | INIT_LIST_HEAD(&session->ordered_events.cache); | |
37e39aa8 | 80 | INIT_LIST_HEAD(&session->ordered_events.to_free); |
8d99a6ce JO |
81 | session->ordered_events.max_alloc_size = (u64) -1; |
82 | session->ordered_events.cur_alloc_size = 0; | |
316c7136 | 83 | machines__init(&session->machines); |
94c744b6 | 84 | |
6a4d98d7 JO |
85 | if (file) { |
86 | if (perf_data_file__open(file)) | |
64abebf7 | 87 | goto out_delete; |
6a4d98d7 | 88 | |
316c7136 | 89 | session->file = file; |
6a4d98d7 JO |
90 | |
91 | if (perf_data_file__is_read(file)) { | |
316c7136 | 92 | if (perf_session__open(session) < 0) |
6a4d98d7 JO |
93 | goto out_close; |
94 | ||
316c7136 | 95 | perf_session__set_id_hdr_size(session); |
6a4d98d7 JO |
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 | 103 | */ |
316c7136 | 104 | if (perf_session__create_kernel_maps(session) < 0) |
64abebf7 ACM |
105 | goto out_delete; |
106 | } | |
d549c769 | 107 | |
45694aa7 | 108 | if (tool && tool->ordering_requires_timestamps && |
0a8cb85c | 109 | tool->ordered_events && !perf_evlist__sample_id_all(session->evlist)) { |
21ef97f0 | 110 | dump_printf("WARNING: No sample_id_all support, falling back to unordered processing\n"); |
0a8cb85c | 111 | tool->ordered_events = false; |
21ef97f0 IM |
112 | } |
113 | ||
316c7136 | 114 | return session; |
6a4d98d7 JO |
115 | |
116 | out_close: | |
117 | perf_data_file__close(file); | |
118 | out_delete: | |
316c7136 | 119 | perf_session__delete(session); |
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 | { | |
74cf249d ACM |
136 | zfree(&env->hostname); |
137 | zfree(&env->os_release); | |
138 | zfree(&env->version); | |
139 | zfree(&env->arch); | |
140 | zfree(&env->cpu_desc); | |
141 | zfree(&env->cpuid); | |
142 | ||
143 | zfree(&env->cmdline); | |
144 | zfree(&env->sibling_cores); | |
145 | zfree(&env->sibling_threads); | |
146 | zfree(&env->numa_nodes); | |
147 | zfree(&env->pmu_mappings); | |
03cd2094 NK |
148 | } |
149 | ||
316c7136 | 150 | void perf_session__delete(struct perf_session *session) |
94c744b6 | 151 | { |
316c7136 ACM |
152 | perf_session__destroy_kernel_maps(session); |
153 | perf_session__delete_dead_threads(session); | |
154 | perf_session__delete_threads(session); | |
155 | perf_session_env__delete(&session->header.env); | |
156 | machines__exit(&session->machines); | |
157 | if (session->file) | |
158 | perf_data_file__close(session->file); | |
159 | free(session); | |
94c744b6 | 160 | } |
a328626b | 161 | |
47c3d109 AH |
162 | static int process_event_synth_tracing_data_stub(struct perf_tool *tool |
163 | __maybe_unused, | |
164 | union perf_event *event | |
1d037ca1 IT |
165 | __maybe_unused, |
166 | struct perf_session *session | |
167 | __maybe_unused) | |
d20deb64 ACM |
168 | { |
169 | dump_printf(": unhandled!\n"); | |
170 | return 0; | |
171 | } | |
172 | ||
47c3d109 AH |
173 | static int process_event_synth_attr_stub(struct perf_tool *tool __maybe_unused, |
174 | union perf_event *event __maybe_unused, | |
1d037ca1 IT |
175 | struct perf_evlist **pevlist |
176 | __maybe_unused) | |
10d0f086 ACM |
177 | { |
178 | dump_printf(": unhandled!\n"); | |
179 | return 0; | |
180 | } | |
181 | ||
1d037ca1 IT |
182 | static int process_event_sample_stub(struct perf_tool *tool __maybe_unused, |
183 | union perf_event *event __maybe_unused, | |
184 | struct perf_sample *sample __maybe_unused, | |
185 | struct perf_evsel *evsel __maybe_unused, | |
186 | struct machine *machine __maybe_unused) | |
9e69c210 ACM |
187 | { |
188 | dump_printf(": unhandled!\n"); | |
189 | return 0; | |
190 | } | |
191 | ||
1d037ca1 IT |
192 | static int process_event_stub(struct perf_tool *tool __maybe_unused, |
193 | union perf_event *event __maybe_unused, | |
194 | struct perf_sample *sample __maybe_unused, | |
195 | struct machine *machine __maybe_unused) | |
06aae590 ACM |
196 | { |
197 | dump_printf(": unhandled!\n"); | |
198 | return 0; | |
199 | } | |
200 | ||
1d037ca1 IT |
201 | static int process_finished_round_stub(struct perf_tool *tool __maybe_unused, |
202 | union perf_event *event __maybe_unused, | |
203 | struct perf_session *perf_session | |
204 | __maybe_unused) | |
743eb868 ACM |
205 | { |
206 | dump_printf(": unhandled!\n"); | |
207 | return 0; | |
208 | } | |
209 | ||
45694aa7 | 210 | static int process_finished_round(struct perf_tool *tool, |
d20deb64 ACM |
211 | union perf_event *event, |
212 | struct perf_session *session); | |
d6b17beb | 213 | |
9c501402 | 214 | void perf_tool__fill_defaults(struct perf_tool *tool) |
06aae590 | 215 | { |
45694aa7 ACM |
216 | if (tool->sample == NULL) |
217 | tool->sample = process_event_sample_stub; | |
218 | if (tool->mmap == NULL) | |
219 | tool->mmap = process_event_stub; | |
6adb0b0a DA |
220 | if (tool->mmap2 == NULL) |
221 | tool->mmap2 = process_event_stub; | |
45694aa7 ACM |
222 | if (tool->comm == NULL) |
223 | tool->comm = process_event_stub; | |
224 | if (tool->fork == NULL) | |
225 | tool->fork = process_event_stub; | |
226 | if (tool->exit == NULL) | |
227 | tool->exit = process_event_stub; | |
228 | if (tool->lost == NULL) | |
229 | tool->lost = perf_event__process_lost; | |
230 | if (tool->read == NULL) | |
231 | tool->read = process_event_sample_stub; | |
232 | if (tool->throttle == NULL) | |
233 | tool->throttle = process_event_stub; | |
234 | if (tool->unthrottle == NULL) | |
235 | tool->unthrottle = process_event_stub; | |
236 | if (tool->attr == NULL) | |
237 | tool->attr = process_event_synth_attr_stub; | |
45694aa7 ACM |
238 | if (tool->tracing_data == NULL) |
239 | tool->tracing_data = process_event_synth_tracing_data_stub; | |
240 | if (tool->build_id == NULL) | |
241 | tool->build_id = process_finished_round_stub; | |
242 | if (tool->finished_round == NULL) { | |
0a8cb85c | 243 | if (tool->ordered_events) |
45694aa7 | 244 | tool->finished_round = process_finished_round; |
d6b17beb | 245 | else |
45694aa7 | 246 | tool->finished_round = process_finished_round_stub; |
d6b17beb | 247 | } |
06aae590 | 248 | } |
80c0120a | 249 | |
268fb20f JO |
250 | static void swap_sample_id_all(union perf_event *event, void *data) |
251 | { | |
252 | void *end = (void *) event + event->header.size; | |
253 | int size = end - data; | |
254 | ||
255 | BUG_ON(size % sizeof(u64)); | |
256 | mem_bswap_64(data, size); | |
257 | } | |
258 | ||
259 | static void perf_event__all64_swap(union perf_event *event, | |
1d037ca1 | 260 | bool sample_id_all __maybe_unused) |
ba21594c | 261 | { |
8115d60c ACM |
262 | struct perf_event_header *hdr = &event->header; |
263 | mem_bswap_64(hdr + 1, event->header.size - sizeof(*hdr)); | |
ba21594c ACM |
264 | } |
265 | ||
268fb20f | 266 | static void perf_event__comm_swap(union perf_event *event, bool sample_id_all) |
ba21594c | 267 | { |
8115d60c ACM |
268 | event->comm.pid = bswap_32(event->comm.pid); |
269 | event->comm.tid = bswap_32(event->comm.tid); | |
268fb20f JO |
270 | |
271 | if (sample_id_all) { | |
272 | void *data = &event->comm.comm; | |
273 | ||
9ac3e487 | 274 | data += PERF_ALIGN(strlen(data) + 1, sizeof(u64)); |
268fb20f JO |
275 | swap_sample_id_all(event, data); |
276 | } | |
ba21594c ACM |
277 | } |
278 | ||
268fb20f JO |
279 | static void perf_event__mmap_swap(union perf_event *event, |
280 | bool sample_id_all) | |
ba21594c | 281 | { |
8115d60c ACM |
282 | event->mmap.pid = bswap_32(event->mmap.pid); |
283 | event->mmap.tid = bswap_32(event->mmap.tid); | |
284 | event->mmap.start = bswap_64(event->mmap.start); | |
285 | event->mmap.len = bswap_64(event->mmap.len); | |
286 | event->mmap.pgoff = bswap_64(event->mmap.pgoff); | |
268fb20f JO |
287 | |
288 | if (sample_id_all) { | |
289 | void *data = &event->mmap.filename; | |
290 | ||
9ac3e487 | 291 | data += PERF_ALIGN(strlen(data) + 1, sizeof(u64)); |
268fb20f JO |
292 | swap_sample_id_all(event, data); |
293 | } | |
ba21594c ACM |
294 | } |
295 | ||
5c5e854b SE |
296 | static void perf_event__mmap2_swap(union perf_event *event, |
297 | bool sample_id_all) | |
298 | { | |
299 | event->mmap2.pid = bswap_32(event->mmap2.pid); | |
300 | event->mmap2.tid = bswap_32(event->mmap2.tid); | |
301 | event->mmap2.start = bswap_64(event->mmap2.start); | |
302 | event->mmap2.len = bswap_64(event->mmap2.len); | |
303 | event->mmap2.pgoff = bswap_64(event->mmap2.pgoff); | |
304 | event->mmap2.maj = bswap_32(event->mmap2.maj); | |
305 | event->mmap2.min = bswap_32(event->mmap2.min); | |
306 | event->mmap2.ino = bswap_64(event->mmap2.ino); | |
307 | ||
308 | if (sample_id_all) { | |
309 | void *data = &event->mmap2.filename; | |
310 | ||
311 | data += PERF_ALIGN(strlen(data) + 1, sizeof(u64)); | |
312 | swap_sample_id_all(event, data); | |
313 | } | |
314 | } | |
268fb20f | 315 | static void perf_event__task_swap(union perf_event *event, bool sample_id_all) |
ba21594c | 316 | { |
8115d60c ACM |
317 | event->fork.pid = bswap_32(event->fork.pid); |
318 | event->fork.tid = bswap_32(event->fork.tid); | |
319 | event->fork.ppid = bswap_32(event->fork.ppid); | |
320 | event->fork.ptid = bswap_32(event->fork.ptid); | |
321 | event->fork.time = bswap_64(event->fork.time); | |
268fb20f JO |
322 | |
323 | if (sample_id_all) | |
324 | swap_sample_id_all(event, &event->fork + 1); | |
ba21594c ACM |
325 | } |
326 | ||
268fb20f | 327 | static void perf_event__read_swap(union perf_event *event, bool sample_id_all) |
ba21594c | 328 | { |
8115d60c ACM |
329 | event->read.pid = bswap_32(event->read.pid); |
330 | event->read.tid = bswap_32(event->read.tid); | |
331 | event->read.value = bswap_64(event->read.value); | |
332 | event->read.time_enabled = bswap_64(event->read.time_enabled); | |
333 | event->read.time_running = bswap_64(event->read.time_running); | |
334 | event->read.id = bswap_64(event->read.id); | |
268fb20f JO |
335 | |
336 | if (sample_id_all) | |
337 | swap_sample_id_all(event, &event->read + 1); | |
ba21594c ACM |
338 | } |
339 | ||
dd96c46b JO |
340 | static void perf_event__throttle_swap(union perf_event *event, |
341 | bool sample_id_all) | |
342 | { | |
343 | event->throttle.time = bswap_64(event->throttle.time); | |
344 | event->throttle.id = bswap_64(event->throttle.id); | |
345 | event->throttle.stream_id = bswap_64(event->throttle.stream_id); | |
346 | ||
347 | if (sample_id_all) | |
348 | swap_sample_id_all(event, &event->throttle + 1); | |
349 | } | |
350 | ||
e108c66e JO |
351 | static u8 revbyte(u8 b) |
352 | { | |
353 | int rev = (b >> 4) | ((b & 0xf) << 4); | |
354 | rev = ((rev & 0xcc) >> 2) | ((rev & 0x33) << 2); | |
355 | rev = ((rev & 0xaa) >> 1) | ((rev & 0x55) << 1); | |
356 | return (u8) rev; | |
357 | } | |
358 | ||
359 | /* | |
360 | * XXX this is hack in attempt to carry flags bitfield | |
361 | * throught endian village. ABI says: | |
362 | * | |
363 | * Bit-fields are allocated from right to left (least to most significant) | |
364 | * on little-endian implementations and from left to right (most to least | |
365 | * significant) on big-endian implementations. | |
366 | * | |
367 | * The above seems to be byte specific, so we need to reverse each | |
368 | * byte of the bitfield. 'Internet' also says this might be implementation | |
369 | * specific and we probably need proper fix and carry perf_event_attr | |
370 | * bitfield flags in separate data file FEAT_ section. Thought this seems | |
371 | * to work for now. | |
372 | */ | |
373 | static void swap_bitfield(u8 *p, unsigned len) | |
374 | { | |
375 | unsigned i; | |
376 | ||
377 | for (i = 0; i < len; i++) { | |
378 | *p = revbyte(*p); | |
379 | p++; | |
380 | } | |
381 | } | |
382 | ||
eda3913b DA |
383 | /* exported for swapping attributes in file header */ |
384 | void perf_event__attr_swap(struct perf_event_attr *attr) | |
385 | { | |
386 | attr->type = bswap_32(attr->type); | |
387 | attr->size = bswap_32(attr->size); | |
388 | attr->config = bswap_64(attr->config); | |
389 | attr->sample_period = bswap_64(attr->sample_period); | |
390 | attr->sample_type = bswap_64(attr->sample_type); | |
391 | attr->read_format = bswap_64(attr->read_format); | |
392 | attr->wakeup_events = bswap_32(attr->wakeup_events); | |
393 | attr->bp_type = bswap_32(attr->bp_type); | |
394 | attr->bp_addr = bswap_64(attr->bp_addr); | |
395 | attr->bp_len = bswap_64(attr->bp_len); | |
7db59528 AH |
396 | attr->branch_sample_type = bswap_64(attr->branch_sample_type); |
397 | attr->sample_regs_user = bswap_64(attr->sample_regs_user); | |
398 | attr->sample_stack_user = bswap_32(attr->sample_stack_user); | |
e108c66e JO |
399 | |
400 | swap_bitfield((u8 *) (&attr->read_format + 1), sizeof(u64)); | |
eda3913b DA |
401 | } |
402 | ||
268fb20f | 403 | static void perf_event__hdr_attr_swap(union perf_event *event, |
1d037ca1 | 404 | bool sample_id_all __maybe_unused) |
2c46dbb5 TZ |
405 | { |
406 | size_t size; | |
407 | ||
eda3913b | 408 | perf_event__attr_swap(&event->attr.attr); |
2c46dbb5 | 409 | |
8115d60c ACM |
410 | size = event->header.size; |
411 | size -= (void *)&event->attr.id - (void *)event; | |
412 | mem_bswap_64(event->attr.id, size); | |
2c46dbb5 TZ |
413 | } |
414 | ||
268fb20f | 415 | static void perf_event__event_type_swap(union perf_event *event, |
1d037ca1 | 416 | bool sample_id_all __maybe_unused) |
cd19a035 | 417 | { |
8115d60c ACM |
418 | event->event_type.event_type.event_id = |
419 | bswap_64(event->event_type.event_type.event_id); | |
cd19a035 TZ |
420 | } |
421 | ||
268fb20f | 422 | static void perf_event__tracing_data_swap(union perf_event *event, |
1d037ca1 | 423 | bool sample_id_all __maybe_unused) |
9215545e | 424 | { |
8115d60c | 425 | event->tracing_data.size = bswap_32(event->tracing_data.size); |
9215545e TZ |
426 | } |
427 | ||
268fb20f JO |
428 | typedef void (*perf_event__swap_op)(union perf_event *event, |
429 | bool sample_id_all); | |
ba21594c | 430 | |
8115d60c ACM |
431 | static perf_event__swap_op perf_event__swap_ops[] = { |
432 | [PERF_RECORD_MMAP] = perf_event__mmap_swap, | |
5c5e854b | 433 | [PERF_RECORD_MMAP2] = perf_event__mmap2_swap, |
8115d60c ACM |
434 | [PERF_RECORD_COMM] = perf_event__comm_swap, |
435 | [PERF_RECORD_FORK] = perf_event__task_swap, | |
436 | [PERF_RECORD_EXIT] = perf_event__task_swap, | |
437 | [PERF_RECORD_LOST] = perf_event__all64_swap, | |
438 | [PERF_RECORD_READ] = perf_event__read_swap, | |
dd96c46b JO |
439 | [PERF_RECORD_THROTTLE] = perf_event__throttle_swap, |
440 | [PERF_RECORD_UNTHROTTLE] = perf_event__throttle_swap, | |
8115d60c | 441 | [PERF_RECORD_SAMPLE] = perf_event__all64_swap, |
eda3913b | 442 | [PERF_RECORD_HEADER_ATTR] = perf_event__hdr_attr_swap, |
8115d60c ACM |
443 | [PERF_RECORD_HEADER_EVENT_TYPE] = perf_event__event_type_swap, |
444 | [PERF_RECORD_HEADER_TRACING_DATA] = perf_event__tracing_data_swap, | |
445 | [PERF_RECORD_HEADER_BUILD_ID] = NULL, | |
446 | [PERF_RECORD_HEADER_MAX] = NULL, | |
ba21594c ACM |
447 | }; |
448 | ||
37e39aa8 | 449 | struct ordered_event { |
c61e52ee | 450 | u64 timestamp; |
e4c2df13 | 451 | u64 file_offset; |
8115d60c | 452 | union perf_event *event; |
c61e52ee FW |
453 | struct list_head list; |
454 | }; | |
455 | ||
d8836b5d JO |
456 | enum oe_flush { |
457 | OE_FLUSH__FINAL, | |
458 | OE_FLUSH__ROUND, | |
459 | }; | |
460 | ||
020bb75a TG |
461 | static void perf_session_free_sample_buffers(struct perf_session *session) |
462 | { | |
37e39aa8 | 463 | struct ordered_events *oe = &session->ordered_events; |
020bb75a | 464 | |
37e39aa8 JO |
465 | while (!list_empty(&oe->to_free)) { |
466 | struct ordered_event *event; | |
020bb75a | 467 | |
37e39aa8 JO |
468 | event = list_entry(oe->to_free.next, struct ordered_event, list); |
469 | list_del(&event->list); | |
470 | free(event); | |
020bb75a TG |
471 | } |
472 | } | |
473 | ||
c64c7e1a JO |
474 | /* The queue is ordered by time */ |
475 | static void queue_event(struct ordered_events *oe, struct ordered_event *new) | |
476 | { | |
477 | struct ordered_event *last = oe->last; | |
478 | u64 timestamp = new->timestamp; | |
479 | struct list_head *p; | |
480 | ||
481 | ++oe->nr_events; | |
482 | oe->last = new; | |
483 | ||
484 | if (!last) { | |
485 | list_add(&new->list, &oe->events); | |
486 | oe->max_timestamp = timestamp; | |
487 | return; | |
488 | } | |
489 | ||
490 | /* | |
491 | * last event might point to some random place in the list as it's | |
492 | * the last queued event. We expect that the new event is close to | |
493 | * this. | |
494 | */ | |
495 | if (last->timestamp <= timestamp) { | |
496 | while (last->timestamp <= timestamp) { | |
497 | p = last->list.next; | |
498 | if (p == &oe->events) { | |
499 | list_add_tail(&new->list, &oe->events); | |
500 | oe->max_timestamp = timestamp; | |
501 | return; | |
502 | } | |
503 | last = list_entry(p, struct ordered_event, list); | |
504 | } | |
505 | list_add_tail(&new->list, &last->list); | |
506 | } else { | |
507 | while (last->timestamp > timestamp) { | |
508 | p = last->list.prev; | |
509 | if (p == &oe->events) { | |
510 | list_add(&new->list, &oe->events); | |
511 | return; | |
512 | } | |
513 | last = list_entry(p, struct ordered_event, list); | |
514 | } | |
515 | list_add(&new->list, &last->list); | |
516 | } | |
517 | } | |
518 | ||
519 | #define MAX_SAMPLE_BUFFER (64 * 1024 / sizeof(struct ordered_event)) | |
520 | static struct ordered_event *alloc_event(struct ordered_events *oe) | |
521 | { | |
522 | struct list_head *cache = &oe->cache; | |
8d99a6ce | 523 | struct ordered_event *new = NULL; |
c64c7e1a JO |
524 | |
525 | if (!list_empty(cache)) { | |
526 | new = list_entry(cache->next, struct ordered_event, list); | |
527 | list_del(&new->list); | |
528 | } else if (oe->buffer) { | |
529 | new = oe->buffer + oe->buffer_idx; | |
530 | if (++oe->buffer_idx == MAX_SAMPLE_BUFFER) | |
531 | oe->buffer = NULL; | |
8d99a6ce JO |
532 | } else if (oe->cur_alloc_size < oe->max_alloc_size) { |
533 | size_t size = MAX_SAMPLE_BUFFER * sizeof(*new); | |
534 | ||
535 | oe->buffer = malloc(size); | |
c64c7e1a JO |
536 | if (!oe->buffer) |
537 | return NULL; | |
8d99a6ce JO |
538 | |
539 | oe->cur_alloc_size += size; | |
c64c7e1a JO |
540 | list_add(&oe->buffer->list, &oe->to_free); |
541 | ||
542 | /* First entry is abused to maintain the to_free list. */ | |
543 | oe->buffer_idx = 2; | |
544 | new = oe->buffer + 1; | |
545 | } | |
546 | ||
547 | return new; | |
548 | } | |
549 | ||
550 | static struct ordered_event * | |
551 | ordered_events__new(struct ordered_events *oe, u64 timestamp) | |
552 | { | |
553 | struct ordered_event *new; | |
554 | ||
555 | new = alloc_event(oe); | |
556 | if (new) { | |
557 | new->timestamp = timestamp; | |
558 | queue_event(oe, new); | |
559 | } | |
560 | ||
561 | return new; | |
562 | } | |
563 | ||
564 | static void | |
565 | ordered_events__delete(struct ordered_events *oe, struct ordered_event *event) | |
566 | { | |
567 | list_del(&event->list); | |
568 | list_add(&event->list, &oe->cache); | |
569 | oe->nr_events--; | |
570 | } | |
571 | ||
cbf41645 | 572 | static int perf_session_deliver_event(struct perf_session *session, |
8115d60c | 573 | union perf_event *event, |
8d50e5b4 | 574 | struct perf_sample *sample, |
45694aa7 | 575 | struct perf_tool *tool, |
f74725dc | 576 | u64 file_offset); |
cbf41645 | 577 | |
d8836b5d JO |
578 | static int __ordered_events__flush(struct perf_session *s, |
579 | struct perf_tool *tool) | |
c61e52ee | 580 | { |
37e39aa8 | 581 | struct ordered_events *oe = &s->ordered_events; |
fc12482f | 582 | struct list_head *head = &oe->events; |
37e39aa8 | 583 | struct ordered_event *tmp, *iter; |
8d50e5b4 | 584 | struct perf_sample sample; |
37e39aa8 | 585 | u64 limit = oe->next_flush; |
fc12482f | 586 | u64 last_ts = oe->last ? oe->last->timestamp : 0ULL; |
526fd8d4 | 587 | bool show_progress = limit == ULLONG_MAX; |
4d3001fd | 588 | struct ui_progress prog; |
5538beca | 589 | int ret; |
c61e52ee | 590 | |
0a8cb85c | 591 | if (!tool->ordered_events || !limit) |
d25380cd | 592 | return 0; |
c61e52ee | 593 | |
4d3001fd | 594 | if (show_progress) |
fc12482f | 595 | ui_progress__init(&prog, oe->nr_events, "Processing time ordered events..."); |
4d3001fd | 596 | |
c61e52ee | 597 | list_for_each_entry_safe(iter, tmp, head, list) { |
33e940a2 ACM |
598 | if (session_done()) |
599 | return 0; | |
600 | ||
c61e52ee | 601 | if (iter->timestamp > limit) |
a1225dec | 602 | break; |
c61e52ee | 603 | |
0807d2d8 | 604 | ret = perf_evlist__parse_sample(s->evlist, iter->event, &sample); |
5538beca FW |
605 | if (ret) |
606 | pr_err("Can't parse sample, err = %d\n", ret); | |
d25380cd DA |
607 | else { |
608 | ret = perf_session_deliver_event(s, iter->event, &sample, tool, | |
609 | iter->file_offset); | |
610 | if (ret) | |
611 | return ret; | |
612 | } | |
c61e52ee | 613 | |
c64c7e1a | 614 | ordered_events__delete(oe, iter); |
37e39aa8 | 615 | oe->last_flush = iter->timestamp; |
4d3001fd ACM |
616 | |
617 | if (show_progress) | |
618 | ui_progress__update(&prog, 1); | |
c61e52ee | 619 | } |
a1225dec | 620 | |
fc12482f JO |
621 | if (list_empty(head)) |
622 | oe->last = NULL; | |
623 | else if (last_ts <= limit) | |
624 | oe->last = list_entry(head->prev, struct ordered_event, list); | |
88660563 | 625 | |
d25380cd | 626 | return 0; |
c61e52ee FW |
627 | } |
628 | ||
d8836b5d JO |
629 | static int ordered_events__flush(struct perf_session *s, struct perf_tool *tool, |
630 | enum oe_flush how) | |
631 | { | |
632 | struct ordered_events *oe = &s->ordered_events; | |
633 | int err; | |
634 | ||
635 | switch (how) { | |
636 | case OE_FLUSH__FINAL: | |
637 | oe->next_flush = ULLONG_MAX; | |
638 | break; | |
639 | ||
640 | case OE_FLUSH__ROUND: | |
641 | default: | |
642 | break; | |
643 | }; | |
644 | ||
645 | err = __ordered_events__flush(s, tool); | |
646 | ||
647 | if (!err) { | |
648 | if (how == OE_FLUSH__ROUND) | |
649 | oe->next_flush = oe->max_timestamp; | |
650 | } | |
651 | ||
652 | return err; | |
653 | } | |
654 | ||
d6b17beb FW |
655 | /* |
656 | * When perf record finishes a pass on every buffers, it records this pseudo | |
657 | * event. | |
658 | * We record the max timestamp t found in the pass n. | |
659 | * Assuming these timestamps are monotonic across cpus, we know that if | |
660 | * a buffer still has events with timestamps below t, they will be all | |
661 | * available and then read in the pass n + 1. | |
662 | * Hence when we start to read the pass n + 2, we can safely flush every | |
663 | * events with timestamps below t. | |
664 | * | |
665 | * ============ PASS n ================= | |
666 | * CPU 0 | CPU 1 | |
667 | * | | |
668 | * cnt1 timestamps | cnt2 timestamps | |
669 | * 1 | 2 | |
670 | * 2 | 3 | |
671 | * - | 4 <--- max recorded | |
672 | * | |
673 | * ============ PASS n + 1 ============== | |
674 | * CPU 0 | CPU 1 | |
675 | * | | |
676 | * cnt1 timestamps | cnt2 timestamps | |
677 | * 3 | 5 | |
678 | * 4 | 6 | |
679 | * 5 | 7 <---- max recorded | |
680 | * | |
681 | * Flush every events below timestamp 4 | |
682 | * | |
683 | * ============ PASS n + 2 ============== | |
684 | * CPU 0 | CPU 1 | |
685 | * | | |
686 | * cnt1 timestamps | cnt2 timestamps | |
687 | * 6 | 8 | |
688 | * 7 | 9 | |
689 | * - | 10 | |
690 | * | |
691 | * Flush every events below timestamp 7 | |
692 | * etc... | |
693 | */ | |
45694aa7 | 694 | static int process_finished_round(struct perf_tool *tool, |
1d037ca1 | 695 | union perf_event *event __maybe_unused, |
d20deb64 | 696 | struct perf_session *session) |
d6b17beb | 697 | { |
d8836b5d | 698 | return ordered_events__flush(session, tool, OE_FLUSH__ROUND); |
d6b17beb FW |
699 | } |
700 | ||
e30b88a7 | 701 | int perf_session_queue_event(struct perf_session *s, union perf_event *event, |
8d50e5b4 | 702 | struct perf_sample *sample, u64 file_offset) |
c61e52ee | 703 | { |
37e39aa8 | 704 | struct ordered_events *oe = &s->ordered_events; |
8d50e5b4 | 705 | u64 timestamp = sample->time; |
37e39aa8 | 706 | struct ordered_event *new; |
c61e52ee | 707 | |
79a14c1f | 708 | if (!timestamp || timestamp == ~0ULL) |
cbf41645 TG |
709 | return -ETIME; |
710 | ||
37e39aa8 | 711 | if (timestamp < s->ordered_events.last_flush) { |
c61e52ee FW |
712 | printf("Warning: Timestamp below last timeslice flush\n"); |
713 | return -EINVAL; | |
714 | } | |
715 | ||
c64c7e1a JO |
716 | new = ordered_events__new(oe, timestamp); |
717 | if (!new) | |
718 | return -ENOMEM; | |
c61e52ee | 719 | |
e4c2df13 | 720 | new->file_offset = file_offset; |
fe174207 | 721 | new->event = event; |
640c03ce ACM |
722 | return 0; |
723 | } | |
c61e52ee | 724 | |
8d50e5b4 | 725 | static void callchain__printf(struct perf_sample *sample) |
640c03ce ACM |
726 | { |
727 | unsigned int i; | |
c61e52ee | 728 | |
9486aa38 | 729 | printf("... chain: nr:%" PRIu64 "\n", sample->callchain->nr); |
640c03ce ACM |
730 | |
731 | for (i = 0; i < sample->callchain->nr; i++) | |
9486aa38 ACM |
732 | printf("..... %2d: %016" PRIx64 "\n", |
733 | i, sample->callchain->ips[i]); | |
c61e52ee FW |
734 | } |
735 | ||
b5387528 RAV |
736 | static void branch_stack__printf(struct perf_sample *sample) |
737 | { | |
738 | uint64_t i; | |
739 | ||
740 | printf("... branch stack: nr:%" PRIu64 "\n", sample->branch_stack->nr); | |
741 | ||
742 | for (i = 0; i < sample->branch_stack->nr; i++) | |
743 | printf("..... %2"PRIu64": %016" PRIx64 " -> %016" PRIx64 "\n", | |
744 | i, sample->branch_stack->entries[i].from, | |
745 | sample->branch_stack->entries[i].to); | |
746 | } | |
747 | ||
0f6a3015 JO |
748 | static void regs_dump__printf(u64 mask, u64 *regs) |
749 | { | |
750 | unsigned rid, i = 0; | |
751 | ||
752 | for_each_set_bit(rid, (unsigned long *) &mask, sizeof(mask) * 8) { | |
753 | u64 val = regs[i++]; | |
754 | ||
755 | printf(".... %-5s 0x%" PRIx64 "\n", | |
756 | perf_reg_name(rid), val); | |
757 | } | |
758 | } | |
759 | ||
352ea45a | 760 | static void regs_user__printf(struct perf_sample *sample) |
0f6a3015 JO |
761 | { |
762 | struct regs_dump *user_regs = &sample->user_regs; | |
763 | ||
764 | if (user_regs->regs) { | |
352ea45a | 765 | u64 mask = user_regs->mask; |
0f6a3015 JO |
766 | printf("... user regs: mask 0x%" PRIx64 "\n", mask); |
767 | regs_dump__printf(mask, user_regs->regs); | |
768 | } | |
769 | } | |
770 | ||
771 | static void stack_user__printf(struct stack_dump *dump) | |
772 | { | |
773 | printf("... ustack: size %" PRIu64 ", offset 0x%x\n", | |
774 | dump->size, dump->offset); | |
775 | } | |
776 | ||
9c90a61c | 777 | static void perf_session__print_tstamp(struct perf_session *session, |
8115d60c | 778 | union perf_event *event, |
8d50e5b4 | 779 | struct perf_sample *sample) |
9c90a61c | 780 | { |
75562573 | 781 | u64 sample_type = __perf_evlist__combined_sample_type(session->evlist); |
7f3be652 | 782 | |
9c90a61c | 783 | if (event->header.type != PERF_RECORD_SAMPLE && |
5e562474 | 784 | !perf_evlist__sample_id_all(session->evlist)) { |
9c90a61c ACM |
785 | fputs("-1 -1 ", stdout); |
786 | return; | |
787 | } | |
788 | ||
7f3be652 | 789 | if ((sample_type & PERF_SAMPLE_CPU)) |
9c90a61c ACM |
790 | printf("%u ", sample->cpu); |
791 | ||
7f3be652 | 792 | if (sample_type & PERF_SAMPLE_TIME) |
9486aa38 | 793 | printf("%" PRIu64 " ", sample->time); |
9c90a61c ACM |
794 | } |
795 | ||
9ede473c JO |
796 | static void sample_read__printf(struct perf_sample *sample, u64 read_format) |
797 | { | |
798 | printf("... sample_read:\n"); | |
799 | ||
800 | if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED) | |
801 | printf("...... time enabled %016" PRIx64 "\n", | |
802 | sample->read.time_enabled); | |
803 | ||
804 | if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING) | |
805 | printf("...... time running %016" PRIx64 "\n", | |
806 | sample->read.time_running); | |
807 | ||
808 | if (read_format & PERF_FORMAT_GROUP) { | |
809 | u64 i; | |
810 | ||
811 | printf(".... group nr %" PRIu64 "\n", sample->read.group.nr); | |
812 | ||
813 | for (i = 0; i < sample->read.group.nr; i++) { | |
814 | struct sample_read_value *value; | |
815 | ||
816 | value = &sample->read.group.values[i]; | |
817 | printf("..... id %016" PRIx64 | |
818 | ", value %016" PRIx64 "\n", | |
819 | value->id, value->value); | |
820 | } | |
821 | } else | |
822 | printf("..... id %016" PRIx64 ", value %016" PRIx64 "\n", | |
823 | sample->read.one.id, sample->read.one.value); | |
824 | } | |
825 | ||
8115d60c | 826 | static void dump_event(struct perf_session *session, union perf_event *event, |
8d50e5b4 | 827 | u64 file_offset, struct perf_sample *sample) |
9aefcab0 TG |
828 | { |
829 | if (!dump_trace) | |
830 | return; | |
831 | ||
9486aa38 ACM |
832 | printf("\n%#" PRIx64 " [%#x]: event: %d\n", |
833 | file_offset, event->header.size, event->header.type); | |
9aefcab0 TG |
834 | |
835 | trace_event(event); | |
836 | ||
837 | if (sample) | |
838 | perf_session__print_tstamp(session, event, sample); | |
839 | ||
9486aa38 | 840 | printf("%#" PRIx64 " [%#x]: PERF_RECORD_%s", file_offset, |
8115d60c | 841 | event->header.size, perf_event__name(event->header.type)); |
9aefcab0 TG |
842 | } |
843 | ||
0f6a3015 | 844 | static void dump_sample(struct perf_evsel *evsel, union perf_event *event, |
8d50e5b4 | 845 | struct perf_sample *sample) |
9aefcab0 | 846 | { |
7f3be652 ACM |
847 | u64 sample_type; |
848 | ||
ddbc24b7 ACM |
849 | if (!dump_trace) |
850 | return; | |
851 | ||
0ea590ae | 852 | printf("(IP, 0x%x): %d/%d: %#" PRIx64 " period: %" PRIu64 " addr: %#" PRIx64 "\n", |
9486aa38 | 853 | event->header.misc, sample->pid, sample->tid, sample->ip, |
7cec0922 | 854 | sample->period, sample->addr); |
9aefcab0 | 855 | |
0f6a3015 | 856 | sample_type = evsel->attr.sample_type; |
7f3be652 ACM |
857 | |
858 | if (sample_type & PERF_SAMPLE_CALLCHAIN) | |
ddbc24b7 | 859 | callchain__printf(sample); |
b5387528 | 860 | |
7f3be652 | 861 | if (sample_type & PERF_SAMPLE_BRANCH_STACK) |
b5387528 | 862 | branch_stack__printf(sample); |
0f6a3015 JO |
863 | |
864 | if (sample_type & PERF_SAMPLE_REGS_USER) | |
352ea45a | 865 | regs_user__printf(sample); |
0f6a3015 JO |
866 | |
867 | if (sample_type & PERF_SAMPLE_STACK_USER) | |
868 | stack_user__printf(&sample->user_stack); | |
05484298 AK |
869 | |
870 | if (sample_type & PERF_SAMPLE_WEIGHT) | |
871 | printf("... weight: %" PRIu64 "\n", sample->weight); | |
98a3b32c SE |
872 | |
873 | if (sample_type & PERF_SAMPLE_DATA_SRC) | |
874 | printf(" . data_src: 0x%"PRIx64"\n", sample->data_src); | |
9ede473c | 875 | |
475eeab9 AK |
876 | if (sample_type & PERF_SAMPLE_TRANSACTION) |
877 | printf("... transaction: %" PRIx64 "\n", sample->transaction); | |
878 | ||
9ede473c JO |
879 | if (sample_type & PERF_SAMPLE_READ) |
880 | sample_read__printf(sample, evsel->attr.read_format); | |
9aefcab0 TG |
881 | } |
882 | ||
743eb868 ACM |
883 | static struct machine * |
884 | perf_session__find_machine_for_cpumode(struct perf_session *session, | |
ef89325f AH |
885 | union perf_event *event, |
886 | struct perf_sample *sample) | |
743eb868 ACM |
887 | { |
888 | const u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; | |
ad85ace0 | 889 | struct machine *machine; |
743eb868 | 890 | |
7c0f4a41 DA |
891 | if (perf_guest && |
892 | ((cpumode == PERF_RECORD_MISC_GUEST_KERNEL) || | |
893 | (cpumode == PERF_RECORD_MISC_GUEST_USER))) { | |
7fb0a5ee ND |
894 | u32 pid; |
895 | ||
5c5e854b SE |
896 | if (event->header.type == PERF_RECORD_MMAP |
897 | || event->header.type == PERF_RECORD_MMAP2) | |
7fb0a5ee ND |
898 | pid = event->mmap.pid; |
899 | else | |
ef89325f | 900 | pid = sample->pid; |
7fb0a5ee | 901 | |
ad85ace0 DY |
902 | machine = perf_session__find_machine(session, pid); |
903 | if (!machine) | |
904 | machine = perf_session__findnew_machine(session, | |
905 | DEFAULT_GUEST_KERNEL_ID); | |
906 | return machine; | |
7fb0a5ee | 907 | } |
743eb868 | 908 | |
34ba5122 | 909 | return &session->machines.host; |
743eb868 ACM |
910 | } |
911 | ||
e4caec0d JO |
912 | static int deliver_sample_value(struct perf_session *session, |
913 | struct perf_tool *tool, | |
914 | union perf_event *event, | |
915 | struct perf_sample *sample, | |
916 | struct sample_read_value *v, | |
917 | struct machine *machine) | |
918 | { | |
919 | struct perf_sample_id *sid; | |
920 | ||
921 | sid = perf_evlist__id2sid(session->evlist, v->id); | |
922 | if (sid) { | |
923 | sample->id = v->id; | |
924 | sample->period = v->value - sid->period; | |
925 | sid->period = v->value; | |
926 | } | |
927 | ||
928 | if (!sid || sid->evsel == NULL) { | |
929 | ++session->stats.nr_unknown_id; | |
930 | return 0; | |
931 | } | |
932 | ||
933 | return tool->sample(tool, event, sample, sid->evsel, machine); | |
934 | } | |
935 | ||
936 | static int deliver_sample_group(struct perf_session *session, | |
937 | struct perf_tool *tool, | |
938 | union perf_event *event, | |
939 | struct perf_sample *sample, | |
940 | struct machine *machine) | |
941 | { | |
942 | int ret = -EINVAL; | |
943 | u64 i; | |
944 | ||
945 | for (i = 0; i < sample->read.group.nr; i++) { | |
946 | ret = deliver_sample_value(session, tool, event, sample, | |
947 | &sample->read.group.values[i], | |
948 | machine); | |
949 | if (ret) | |
950 | break; | |
951 | } | |
952 | ||
953 | return ret; | |
954 | } | |
955 | ||
956 | static int | |
957 | perf_session__deliver_sample(struct perf_session *session, | |
958 | struct perf_tool *tool, | |
959 | union perf_event *event, | |
960 | struct perf_sample *sample, | |
961 | struct perf_evsel *evsel, | |
962 | struct machine *machine) | |
963 | { | |
964 | /* We know evsel != NULL. */ | |
965 | u64 sample_type = evsel->attr.sample_type; | |
966 | u64 read_format = evsel->attr.read_format; | |
967 | ||
968 | /* Standard sample delievery. */ | |
969 | if (!(sample_type & PERF_SAMPLE_READ)) | |
970 | return tool->sample(tool, event, sample, evsel, machine); | |
971 | ||
972 | /* For PERF_SAMPLE_READ we have either single or group mode. */ | |
973 | if (read_format & PERF_FORMAT_GROUP) | |
974 | return deliver_sample_group(session, tool, event, sample, | |
975 | machine); | |
976 | else | |
977 | return deliver_sample_value(session, tool, event, sample, | |
978 | &sample->read.one, machine); | |
979 | } | |
980 | ||
cbf41645 | 981 | static int perf_session_deliver_event(struct perf_session *session, |
8115d60c | 982 | union perf_event *event, |
8d50e5b4 | 983 | struct perf_sample *sample, |
45694aa7 | 984 | struct perf_tool *tool, |
532e7269 | 985 | u64 file_offset) |
cbf41645 | 986 | { |
9e69c210 | 987 | struct perf_evsel *evsel; |
743eb868 | 988 | struct machine *machine; |
9e69c210 | 989 | |
532e7269 TG |
990 | dump_event(session, event, file_offset, sample); |
991 | ||
7b27509f ACM |
992 | evsel = perf_evlist__id2evsel(session->evlist, sample->id); |
993 | if (evsel != NULL && event->header.type != PERF_RECORD_SAMPLE) { | |
994 | /* | |
995 | * XXX We're leaving PERF_RECORD_SAMPLE unnacounted here | |
996 | * because the tools right now may apply filters, discarding | |
997 | * some of the samples. For consistency, in the future we | |
998 | * should have something like nr_filtered_samples and remove | |
999 | * the sample->period from total_sample_period, etc, KISS for | |
1000 | * now tho. | |
1001 | * | |
1002 | * Also testing against NULL allows us to handle files without | |
1003 | * attr.sample_id_all and/or without PERF_SAMPLE_ID. In the | |
1004 | * future probably it'll be a good idea to restrict event | |
1005 | * processing via perf_session to files with both set. | |
1006 | */ | |
1007 | hists__inc_nr_events(&evsel->hists, event->header.type); | |
1008 | } | |
1009 | ||
ef89325f AH |
1010 | machine = perf_session__find_machine_for_cpumode(session, event, |
1011 | sample); | |
743eb868 | 1012 | |
cbf41645 TG |
1013 | switch (event->header.type) { |
1014 | case PERF_RECORD_SAMPLE: | |
0f6a3015 | 1015 | dump_sample(evsel, event, sample); |
9e69c210 | 1016 | if (evsel == NULL) { |
28a6b6aa | 1017 | ++session->stats.nr_unknown_id; |
6782206b | 1018 | return 0; |
9e69c210 | 1019 | } |
0c095715 | 1020 | if (machine == NULL) { |
28a6b6aa | 1021 | ++session->stats.nr_unprocessable_samples; |
6782206b | 1022 | return 0; |
0c095715 | 1023 | } |
e4caec0d JO |
1024 | return perf_session__deliver_sample(session, tool, event, |
1025 | sample, evsel, machine); | |
cbf41645 | 1026 | case PERF_RECORD_MMAP: |
45694aa7 | 1027 | return tool->mmap(tool, event, sample, machine); |
5c5e854b SE |
1028 | case PERF_RECORD_MMAP2: |
1029 | return tool->mmap2(tool, event, sample, machine); | |
cbf41645 | 1030 | case PERF_RECORD_COMM: |
45694aa7 | 1031 | return tool->comm(tool, event, sample, machine); |
cbf41645 | 1032 | case PERF_RECORD_FORK: |
45694aa7 | 1033 | return tool->fork(tool, event, sample, machine); |
cbf41645 | 1034 | case PERF_RECORD_EXIT: |
45694aa7 | 1035 | return tool->exit(tool, event, sample, machine); |
cbf41645 | 1036 | case PERF_RECORD_LOST: |
45694aa7 | 1037 | if (tool->lost == perf_event__process_lost) |
28a6b6aa | 1038 | session->stats.total_lost += event->lost.lost; |
45694aa7 | 1039 | return tool->lost(tool, event, sample, machine); |
cbf41645 | 1040 | case PERF_RECORD_READ: |
45694aa7 | 1041 | return tool->read(tool, event, sample, evsel, machine); |
cbf41645 | 1042 | case PERF_RECORD_THROTTLE: |
45694aa7 | 1043 | return tool->throttle(tool, event, sample, machine); |
cbf41645 | 1044 | case PERF_RECORD_UNTHROTTLE: |
45694aa7 | 1045 | return tool->unthrottle(tool, event, sample, machine); |
cbf41645 | 1046 | default: |
28a6b6aa | 1047 | ++session->stats.nr_unknown_events; |
cbf41645 TG |
1048 | return -1; |
1049 | } | |
1050 | } | |
1051 | ||
d5652d86 AH |
1052 | static s64 perf_session__process_user_event(struct perf_session *session, |
1053 | union perf_event *event, | |
1054 | struct perf_tool *tool, | |
1055 | u64 file_offset) | |
06aae590 | 1056 | { |
cc9784bd | 1057 | int fd = perf_data_file__fd(session->file); |
10d0f086 ACM |
1058 | int err; |
1059 | ||
ba74f064 | 1060 | dump_event(session, event, file_offset, NULL); |
06aae590 | 1061 | |
cbf41645 | 1062 | /* These events are processed right away */ |
06aae590 | 1063 | switch (event->header.type) { |
2c46dbb5 | 1064 | case PERF_RECORD_HEADER_ATTR: |
47c3d109 | 1065 | err = tool->attr(tool, event, &session->evlist); |
10d0f086 | 1066 | if (err == 0) |
7b56cce2 | 1067 | perf_session__set_id_hdr_size(session); |
10d0f086 | 1068 | return err; |
f67697bd JO |
1069 | case PERF_RECORD_HEADER_EVENT_TYPE: |
1070 | /* | |
1071 | * Depreceated, but we need to handle it for sake | |
1072 | * of old data files create in pipe mode. | |
1073 | */ | |
1074 | return 0; | |
9215545e TZ |
1075 | case PERF_RECORD_HEADER_TRACING_DATA: |
1076 | /* setup for reading amidst mmap */ | |
cc9784bd | 1077 | lseek(fd, file_offset, SEEK_SET); |
47c3d109 | 1078 | return tool->tracing_data(tool, event, session); |
c7929e47 | 1079 | case PERF_RECORD_HEADER_BUILD_ID: |
45694aa7 | 1080 | return tool->build_id(tool, event, session); |
d6b17beb | 1081 | case PERF_RECORD_FINISHED_ROUND: |
45694aa7 | 1082 | return tool->finished_round(tool, event, session); |
06aae590 | 1083 | default: |
ba74f064 | 1084 | return -EINVAL; |
06aae590 | 1085 | } |
ba74f064 TG |
1086 | } |
1087 | ||
268fb20f JO |
1088 | static void event_swap(union perf_event *event, bool sample_id_all) |
1089 | { | |
1090 | perf_event__swap_op swap; | |
1091 | ||
1092 | swap = perf_event__swap_ops[event->header.type]; | |
1093 | if (swap) | |
1094 | swap(event, sample_id_all); | |
1095 | } | |
1096 | ||
d5652d86 | 1097 | static s64 perf_session__process_event(struct perf_session *session, |
e30b88a7 DA |
1098 | union perf_event *event, |
1099 | struct perf_tool *tool, | |
1100 | u64 file_offset) | |
ba74f064 | 1101 | { |
8d50e5b4 | 1102 | struct perf_sample sample; |
ba74f064 TG |
1103 | int ret; |
1104 | ||
268fb20f | 1105 | if (session->header.needs_swap) |
5e562474 | 1106 | event_swap(event, perf_evlist__sample_id_all(session->evlist)); |
ba74f064 TG |
1107 | |
1108 | if (event->header.type >= PERF_RECORD_HEADER_MAX) | |
1109 | return -EINVAL; | |
1110 | ||
28a6b6aa | 1111 | events_stats__inc(&session->stats, event->header.type); |
ba74f064 TG |
1112 | |
1113 | if (event->header.type >= PERF_RECORD_USER_TYPE_START) | |
45694aa7 | 1114 | return perf_session__process_user_event(session, event, tool, file_offset); |
cbf41645 | 1115 | |
3dfc2c0a TG |
1116 | /* |
1117 | * For all kernel events we get the sample data | |
1118 | */ | |
0807d2d8 | 1119 | ret = perf_evlist__parse_sample(session->evlist, event, &sample); |
5538beca FW |
1120 | if (ret) |
1121 | return ret; | |
3dfc2c0a | 1122 | |
0a8cb85c | 1123 | if (tool->ordered_events) { |
e4c2df13 TG |
1124 | ret = perf_session_queue_event(session, event, &sample, |
1125 | file_offset); | |
cbf41645 TG |
1126 | if (ret != -ETIME) |
1127 | return ret; | |
1128 | } | |
1129 | ||
45694aa7 | 1130 | return perf_session_deliver_event(session, event, &sample, tool, |
f74725dc | 1131 | file_offset); |
06aae590 ACM |
1132 | } |
1133 | ||
316c7136 | 1134 | void perf_event_header__bswap(struct perf_event_header *hdr) |
ba21594c | 1135 | { |
316c7136 ACM |
1136 | hdr->type = bswap_32(hdr->type); |
1137 | hdr->misc = bswap_16(hdr->misc); | |
1138 | hdr->size = bswap_16(hdr->size); | |
ba21594c ACM |
1139 | } |
1140 | ||
b424eba2 ACM |
1141 | struct thread *perf_session__findnew(struct perf_session *session, pid_t pid) |
1142 | { | |
1fcb8768 | 1143 | return machine__findnew_thread(&session->machines.host, -1, pid); |
b424eba2 ACM |
1144 | } |
1145 | ||
316c7136 | 1146 | static struct thread *perf_session__register_idle_thread(struct perf_session *session) |
06aae590 | 1147 | { |
1fcb8768 | 1148 | struct thread *thread; |
06aae590 | 1149 | |
1fcb8768 | 1150 | thread = machine__findnew_thread(&session->machines.host, 0, 0); |
162f0bef | 1151 | if (thread == NULL || thread__set_comm(thread, "swapper", 0)) { |
06aae590 ACM |
1152 | pr_err("problem inserting idle task.\n"); |
1153 | thread = NULL; | |
1154 | } | |
1155 | ||
1156 | return thread; | |
1157 | } | |
1158 | ||
11095994 | 1159 | static void perf_session__warn_about_errors(const struct perf_session *session, |
45694aa7 | 1160 | const struct perf_tool *tool) |
11095994 | 1161 | { |
45694aa7 | 1162 | if (tool->lost == perf_event__process_lost && |
28a6b6aa | 1163 | session->stats.nr_events[PERF_RECORD_LOST] != 0) { |
7b27509f ACM |
1164 | ui__warning("Processed %d events and lost %d chunks!\n\n" |
1165 | "Check IO/CPU overload!\n\n", | |
28a6b6aa ACM |
1166 | session->stats.nr_events[0], |
1167 | session->stats.nr_events[PERF_RECORD_LOST]); | |
11095994 ACM |
1168 | } |
1169 | ||
28a6b6aa | 1170 | if (session->stats.nr_unknown_events != 0) { |
11095994 ACM |
1171 | ui__warning("Found %u unknown events!\n\n" |
1172 | "Is this an older tool processing a perf.data " | |
1173 | "file generated by a more recent tool?\n\n" | |
1174 | "If that is not the case, consider " | |
1175 | "reporting to linux-kernel@vger.kernel.org.\n\n", | |
28a6b6aa | 1176 | session->stats.nr_unknown_events); |
11095994 ACM |
1177 | } |
1178 | ||
28a6b6aa | 1179 | if (session->stats.nr_unknown_id != 0) { |
9e69c210 | 1180 | ui__warning("%u samples with id not present in the header\n", |
28a6b6aa | 1181 | session->stats.nr_unknown_id); |
9e69c210 ACM |
1182 | } |
1183 | ||
28a6b6aa | 1184 | if (session->stats.nr_invalid_chains != 0) { |
11095994 ACM |
1185 | ui__warning("Found invalid callchains!\n\n" |
1186 | "%u out of %u events were discarded for this reason.\n\n" | |
1187 | "Consider reporting to linux-kernel@vger.kernel.org.\n\n", | |
28a6b6aa ACM |
1188 | session->stats.nr_invalid_chains, |
1189 | session->stats.nr_events[PERF_RECORD_SAMPLE]); | |
11095994 | 1190 | } |
0c095715 | 1191 | |
28a6b6aa | 1192 | if (session->stats.nr_unprocessable_samples != 0) { |
0c095715 JR |
1193 | ui__warning("%u unprocessable samples recorded.\n" |
1194 | "Do you have a KVM guest running and not using 'perf kvm'?\n", | |
28a6b6aa | 1195 | session->stats.nr_unprocessable_samples); |
0c095715 | 1196 | } |
11095994 ACM |
1197 | } |
1198 | ||
8dc58101 TZ |
1199 | volatile int session_done; |
1200 | ||
316c7136 | 1201 | static int __perf_session__process_pipe_events(struct perf_session *session, |
45694aa7 | 1202 | struct perf_tool *tool) |
8dc58101 | 1203 | { |
316c7136 | 1204 | int fd = perf_data_file__fd(session->file); |
444d2866 SE |
1205 | union perf_event *event; |
1206 | uint32_t size, cur_size = 0; | |
1207 | void *buf = NULL; | |
d5652d86 | 1208 | s64 skip = 0; |
8dc58101 | 1209 | u64 head; |
727ebd54 | 1210 | ssize_t err; |
8dc58101 TZ |
1211 | void *p; |
1212 | ||
45694aa7 | 1213 | perf_tool__fill_defaults(tool); |
8dc58101 TZ |
1214 | |
1215 | head = 0; | |
444d2866 SE |
1216 | cur_size = sizeof(union perf_event); |
1217 | ||
1218 | buf = malloc(cur_size); | |
1219 | if (!buf) | |
1220 | return -errno; | |
8dc58101 | 1221 | more: |
444d2866 | 1222 | event = buf; |
cc9784bd | 1223 | err = readn(fd, event, sizeof(struct perf_event_header)); |
8dc58101 TZ |
1224 | if (err <= 0) { |
1225 | if (err == 0) | |
1226 | goto done; | |
1227 | ||
1228 | pr_err("failed to read event header\n"); | |
1229 | goto out_err; | |
1230 | } | |
1231 | ||
316c7136 | 1232 | if (session->header.needs_swap) |
444d2866 | 1233 | perf_event_header__bswap(&event->header); |
8dc58101 | 1234 | |
444d2866 | 1235 | size = event->header.size; |
27389d78 AH |
1236 | if (size < sizeof(struct perf_event_header)) { |
1237 | pr_err("bad event header size\n"); | |
1238 | goto out_err; | |
1239 | } | |
8dc58101 | 1240 | |
444d2866 SE |
1241 | if (size > cur_size) { |
1242 | void *new = realloc(buf, size); | |
1243 | if (!new) { | |
1244 | pr_err("failed to allocate memory to read event\n"); | |
1245 | goto out_err; | |
1246 | } | |
1247 | buf = new; | |
1248 | cur_size = size; | |
1249 | event = buf; | |
1250 | } | |
1251 | p = event; | |
8dc58101 TZ |
1252 | p += sizeof(struct perf_event_header); |
1253 | ||
794e43b5 | 1254 | if (size - sizeof(struct perf_event_header)) { |
cc9784bd | 1255 | err = readn(fd, p, size - sizeof(struct perf_event_header)); |
794e43b5 TZ |
1256 | if (err <= 0) { |
1257 | if (err == 0) { | |
1258 | pr_err("unexpected end of event stream\n"); | |
1259 | goto done; | |
1260 | } | |
8dc58101 | 1261 | |
794e43b5 TZ |
1262 | pr_err("failed to read event data\n"); |
1263 | goto out_err; | |
1264 | } | |
8dc58101 TZ |
1265 | } |
1266 | ||
316c7136 | 1267 | if ((skip = perf_session__process_event(session, event, tool, head)) < 0) { |
9389a460 | 1268 | pr_err("%#" PRIx64 " [%#x]: failed to process type: %d\n", |
444d2866 | 1269 | head, event->header.size, event->header.type); |
9389a460 JO |
1270 | err = -EINVAL; |
1271 | goto out_err; | |
8dc58101 TZ |
1272 | } |
1273 | ||
1274 | head += size; | |
1275 | ||
8dc58101 TZ |
1276 | if (skip > 0) |
1277 | head += skip; | |
1278 | ||
1279 | if (!session_done()) | |
1280 | goto more; | |
1281 | done: | |
8c16b649 | 1282 | /* do the final flush for ordered samples */ |
d8836b5d | 1283 | err = ordered_events__flush(session, tool, OE_FLUSH__FINAL); |
8dc58101 | 1284 | out_err: |
444d2866 | 1285 | free(buf); |
316c7136 ACM |
1286 | perf_session__warn_about_errors(session, tool); |
1287 | perf_session_free_sample_buffers(session); | |
8dc58101 TZ |
1288 | return err; |
1289 | } | |
1290 | ||
998bedc8 FW |
1291 | static union perf_event * |
1292 | fetch_mmaped_event(struct perf_session *session, | |
1293 | u64 head, size_t mmap_size, char *buf) | |
1294 | { | |
1295 | union perf_event *event; | |
1296 | ||
1297 | /* | |
1298 | * Ensure we have enough space remaining to read | |
1299 | * the size of the event in the headers. | |
1300 | */ | |
1301 | if (head + sizeof(event->header) > mmap_size) | |
1302 | return NULL; | |
1303 | ||
1304 | event = (union perf_event *)(buf + head); | |
1305 | ||
1306 | if (session->header.needs_swap) | |
1307 | perf_event_header__bswap(&event->header); | |
1308 | ||
27389d78 AH |
1309 | if (head + event->header.size > mmap_size) { |
1310 | /* We're not fetching the event so swap back again */ | |
1311 | if (session->header.needs_swap) | |
1312 | perf_event_header__bswap(&event->header); | |
998bedc8 | 1313 | return NULL; |
27389d78 | 1314 | } |
998bedc8 FW |
1315 | |
1316 | return event; | |
1317 | } | |
1318 | ||
35d48ddf DM |
1319 | /* |
1320 | * On 64bit we can mmap the data file in one go. No need for tiny mmap | |
1321 | * slices. On 32bit we use 32MB. | |
1322 | */ | |
1323 | #if BITS_PER_LONG == 64 | |
1324 | #define MMAP_SIZE ULLONG_MAX | |
1325 | #define NUM_MMAPS 1 | |
1326 | #else | |
1327 | #define MMAP_SIZE (32 * 1024 * 1024ULL) | |
1328 | #define NUM_MMAPS 128 | |
1329 | #endif | |
1330 | ||
0331ee0c | 1331 | int __perf_session__process_events(struct perf_session *session, |
6122e4e4 | 1332 | u64 data_offset, u64 data_size, |
45694aa7 | 1333 | u64 file_size, struct perf_tool *tool) |
06aae590 | 1334 | { |
cc9784bd | 1335 | int fd = perf_data_file__fd(session->file); |
d5652d86 | 1336 | u64 head, page_offset, file_offset, file_pos, size; |
fe174207 | 1337 | int err, mmap_prot, mmap_flags, map_idx = 0; |
0c1fe6b2 | 1338 | size_t mmap_size; |
35d48ddf | 1339 | char *buf, *mmaps[NUM_MMAPS]; |
8115d60c | 1340 | union perf_event *event; |
4d3001fd | 1341 | struct ui_progress prog; |
d5652d86 | 1342 | s64 skip; |
0331ee0c | 1343 | |
45694aa7 | 1344 | perf_tool__fill_defaults(tool); |
06aae590 | 1345 | |
0331ee0c TG |
1346 | page_offset = page_size * (data_offset / page_size); |
1347 | file_offset = page_offset; | |
1348 | head = data_offset - page_offset; | |
06aae590 | 1349 | |
b314e5cf | 1350 | if (data_size && (data_offset + data_size < file_size)) |
d6513281 TG |
1351 | file_size = data_offset + data_size; |
1352 | ||
4d3001fd | 1353 | ui_progress__init(&prog, file_size, "Processing events..."); |
55b44629 | 1354 | |
35d48ddf | 1355 | mmap_size = MMAP_SIZE; |
919d86d3 | 1356 | if (mmap_size > file_size) { |
55b44629 | 1357 | mmap_size = file_size; |
919d86d3 AH |
1358 | session->one_mmap = true; |
1359 | } | |
55b44629 | 1360 | |
fe174207 TG |
1361 | memset(mmaps, 0, sizeof(mmaps)); |
1362 | ||
ba21594c ACM |
1363 | mmap_prot = PROT_READ; |
1364 | mmap_flags = MAP_SHARED; | |
1365 | ||
0331ee0c | 1366 | if (session->header.needs_swap) { |
ba21594c ACM |
1367 | mmap_prot |= PROT_WRITE; |
1368 | mmap_flags = MAP_PRIVATE; | |
1369 | } | |
06aae590 | 1370 | remap: |
cc9784bd | 1371 | buf = mmap(NULL, mmap_size, mmap_prot, mmap_flags, fd, |
55b44629 | 1372 | file_offset); |
06aae590 ACM |
1373 | if (buf == MAP_FAILED) { |
1374 | pr_err("failed to mmap file\n"); | |
1375 | err = -errno; | |
1376 | goto out_err; | |
1377 | } | |
fe174207 TG |
1378 | mmaps[map_idx] = buf; |
1379 | map_idx = (map_idx + 1) & (ARRAY_SIZE(mmaps) - 1); | |
d6513281 | 1380 | file_pos = file_offset + head; |
919d86d3 AH |
1381 | if (session->one_mmap) { |
1382 | session->one_mmap_addr = buf; | |
1383 | session->one_mmap_offset = file_offset; | |
1384 | } | |
06aae590 ACM |
1385 | |
1386 | more: | |
998bedc8 FW |
1387 | event = fetch_mmaped_event(session, head, mmap_size, buf); |
1388 | if (!event) { | |
fe174207 TG |
1389 | if (mmaps[map_idx]) { |
1390 | munmap(mmaps[map_idx], mmap_size); | |
1391 | mmaps[map_idx] = NULL; | |
1392 | } | |
06aae590 | 1393 | |
0331ee0c TG |
1394 | page_offset = page_size * (head / page_size); |
1395 | file_offset += page_offset; | |
1396 | head -= page_offset; | |
06aae590 ACM |
1397 | goto remap; |
1398 | } | |
1399 | ||
1400 | size = event->header.size; | |
1401 | ||
27389d78 | 1402 | if (size < sizeof(struct perf_event_header) || |
6f917c70 AH |
1403 | (skip = perf_session__process_event(session, event, tool, file_pos)) |
1404 | < 0) { | |
9389a460 JO |
1405 | pr_err("%#" PRIx64 " [%#x]: failed to process type: %d\n", |
1406 | file_offset + head, event->header.size, | |
1407 | event->header.type); | |
1408 | err = -EINVAL; | |
1409 | goto out_err; | |
06aae590 ACM |
1410 | } |
1411 | ||
6f917c70 AH |
1412 | if (skip) |
1413 | size += skip; | |
1414 | ||
06aae590 | 1415 | head += size; |
d6513281 | 1416 | file_pos += size; |
06aae590 | 1417 | |
4d3001fd | 1418 | ui_progress__update(&prog, size); |
55b44629 | 1419 | |
33e940a2 | 1420 | if (session_done()) |
8c16b649 | 1421 | goto out; |
33e940a2 | 1422 | |
d6513281 | 1423 | if (file_pos < file_size) |
06aae590 | 1424 | goto more; |
d6513281 | 1425 | |
8c16b649 | 1426 | out: |
c61e52ee | 1427 | /* do the final flush for ordered samples */ |
d8836b5d | 1428 | err = ordered_events__flush(session, tool, OE_FLUSH__FINAL); |
06aae590 | 1429 | out_err: |
a5580f3e | 1430 | ui_progress__finish(); |
45694aa7 | 1431 | perf_session__warn_about_errors(session, tool); |
020bb75a | 1432 | perf_session_free_sample_buffers(session); |
919d86d3 | 1433 | session->one_mmap = false; |
06aae590 ACM |
1434 | return err; |
1435 | } | |
27295592 | 1436 | |
316c7136 | 1437 | int perf_session__process_events(struct perf_session *session, |
45694aa7 | 1438 | struct perf_tool *tool) |
6122e4e4 | 1439 | { |
316c7136 | 1440 | u64 size = perf_data_file__size(session->file); |
6122e4e4 ACM |
1441 | int err; |
1442 | ||
316c7136 | 1443 | if (perf_session__register_idle_thread(session) == NULL) |
6122e4e4 ACM |
1444 | return -ENOMEM; |
1445 | ||
316c7136 ACM |
1446 | if (!perf_data_file__is_pipe(session->file)) |
1447 | err = __perf_session__process_events(session, | |
1448 | session->header.data_offset, | |
1449 | session->header.data_size, | |
cc9784bd | 1450 | size, tool); |
8dc58101 | 1451 | else |
316c7136 | 1452 | err = __perf_session__process_pipe_events(session, tool); |
88ca895d | 1453 | |
6122e4e4 ACM |
1454 | return err; |
1455 | } | |
1456 | ||
7f3be652 | 1457 | bool perf_session__has_traces(struct perf_session *session, const char *msg) |
27295592 | 1458 | { |
93ea01c2 DA |
1459 | struct perf_evsel *evsel; |
1460 | ||
0050f7aa | 1461 | evlist__for_each(session->evlist, evsel) { |
93ea01c2 DA |
1462 | if (evsel->attr.type == PERF_TYPE_TRACEPOINT) |
1463 | return true; | |
27295592 ACM |
1464 | } |
1465 | ||
93ea01c2 DA |
1466 | pr_err("No trace sample to read. Did you call 'perf %s'?\n", msg); |
1467 | return false; | |
27295592 | 1468 | } |
56b03f3c | 1469 | |
743eb868 ACM |
1470 | int maps__set_kallsyms_ref_reloc_sym(struct map **maps, |
1471 | const char *symbol_name, u64 addr) | |
56b03f3c ACM |
1472 | { |
1473 | char *bracket; | |
9de89fe7 | 1474 | enum map_type i; |
a1645ce1 ZY |
1475 | struct ref_reloc_sym *ref; |
1476 | ||
1477 | ref = zalloc(sizeof(struct ref_reloc_sym)); | |
1478 | if (ref == NULL) | |
1479 | return -ENOMEM; | |
56b03f3c | 1480 | |
a1645ce1 ZY |
1481 | ref->name = strdup(symbol_name); |
1482 | if (ref->name == NULL) { | |
1483 | free(ref); | |
56b03f3c | 1484 | return -ENOMEM; |
a1645ce1 | 1485 | } |
56b03f3c | 1486 | |
a1645ce1 | 1487 | bracket = strchr(ref->name, ']'); |
56b03f3c ACM |
1488 | if (bracket) |
1489 | *bracket = '\0'; | |
1490 | ||
a1645ce1 | 1491 | ref->addr = addr; |
9de89fe7 ACM |
1492 | |
1493 | for (i = 0; i < MAP__NR_TYPES; ++i) { | |
a1645ce1 ZY |
1494 | struct kmap *kmap = map__kmap(maps[i]); |
1495 | kmap->ref_reloc_sym = ref; | |
9de89fe7 ACM |
1496 | } |
1497 | ||
56b03f3c ACM |
1498 | return 0; |
1499 | } | |
1f626bc3 | 1500 | |
316c7136 | 1501 | size_t perf_session__fprintf_dsos(struct perf_session *session, FILE *fp) |
1f626bc3 | 1502 | { |
316c7136 | 1503 | return machines__fprintf_dsos(&session->machines, fp); |
1f626bc3 | 1504 | } |
f869097e | 1505 | |
316c7136 | 1506 | size_t perf_session__fprintf_dsos_buildid(struct perf_session *session, FILE *fp, |
417c2ff6 | 1507 | bool (skip)(struct dso *dso, int parm), int parm) |
f869097e | 1508 | { |
316c7136 | 1509 | return machines__fprintf_dsos_buildid(&session->machines, fp, skip, parm); |
f869097e | 1510 | } |
e248de33 ACM |
1511 | |
1512 | size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp) | |
1513 | { | |
1514 | struct perf_evsel *pos; | |
1515 | size_t ret = fprintf(fp, "Aggregated stats:\n"); | |
1516 | ||
28a6b6aa | 1517 | ret += events_stats__fprintf(&session->stats, fp); |
e248de33 | 1518 | |
0050f7aa | 1519 | evlist__for_each(session->evlist, pos) { |
7289f83c | 1520 | ret += fprintf(fp, "%s stats:\n", perf_evsel__name(pos)); |
52168eea | 1521 | ret += events_stats__fprintf(&pos->hists.stats, fp); |
e248de33 ACM |
1522 | } |
1523 | ||
1524 | return ret; | |
1525 | } | |
c0230b2b | 1526 | |
b424eba2 ACM |
1527 | size_t perf_session__fprintf(struct perf_session *session, FILE *fp) |
1528 | { | |
1529 | /* | |
1530 | * FIXME: Here we have to actually print all the machines in this | |
1531 | * session, not just the host... | |
1532 | */ | |
876650e6 | 1533 | return machine__fprintf(&session->machines.host, fp); |
b424eba2 ACM |
1534 | } |
1535 | ||
9cbdb702 DA |
1536 | struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session, |
1537 | unsigned int type) | |
1538 | { | |
1539 | struct perf_evsel *pos; | |
1540 | ||
0050f7aa | 1541 | evlist__for_each(session->evlist, pos) { |
9cbdb702 DA |
1542 | if (pos->attr.type == type) |
1543 | return pos; | |
1544 | } | |
1545 | return NULL; | |
1546 | } | |
1547 | ||
a2cb3cf2 | 1548 | void perf_evsel__print_ip(struct perf_evsel *evsel, struct perf_sample *sample, |
cc22e575 | 1549 | struct addr_location *al, |
307cbb92 | 1550 | unsigned int print_opts, unsigned int stack_depth) |
c0230b2b | 1551 | { |
c0230b2b | 1552 | struct callchain_cursor_node *node; |
a6ffaf91 DA |
1553 | int print_ip = print_opts & PRINT_IP_OPT_IP; |
1554 | int print_sym = print_opts & PRINT_IP_OPT_SYM; | |
1555 | int print_dso = print_opts & PRINT_IP_OPT_DSO; | |
1556 | int print_symoffset = print_opts & PRINT_IP_OPT_SYMOFFSET; | |
b0b35f01 | 1557 | int print_oneline = print_opts & PRINT_IP_OPT_ONELINE; |
cc8fae1d | 1558 | int print_srcline = print_opts & PRINT_IP_OPT_SRCLINE; |
b0b35f01 | 1559 | char s = print_oneline ? ' ' : '\t'; |
c0230b2b | 1560 | |
c0230b2b | 1561 | if (symbol_conf.use_callchain && sample->callchain) { |
a2cb3cf2 | 1562 | struct addr_location node_al; |
c0230b2b | 1563 | |
cc22e575 | 1564 | if (machine__resolve_callchain(al->machine, evsel, al->thread, |
91e95617 WL |
1565 | sample, NULL, NULL, |
1566 | PERF_MAX_STACK_DEPTH) != 0) { | |
c0230b2b DA |
1567 | if (verbose) |
1568 | error("Failed to resolve callchain. Skipping\n"); | |
1569 | return; | |
1570 | } | |
47260645 | 1571 | callchain_cursor_commit(&callchain_cursor); |
c0230b2b | 1572 | |
a2cb3cf2 AH |
1573 | if (print_symoffset) |
1574 | node_al = *al; | |
1575 | ||
307cbb92 | 1576 | while (stack_depth) { |
a4eb24a4 AH |
1577 | u64 addr = 0; |
1578 | ||
47260645 | 1579 | node = callchain_cursor_current(&callchain_cursor); |
c0230b2b DA |
1580 | if (!node) |
1581 | break; | |
1582 | ||
d2ff1b14 DA |
1583 | if (node->sym && node->sym->ignore) |
1584 | goto next; | |
1585 | ||
a6ffaf91 | 1586 | if (print_ip) |
b0b35f01 | 1587 | printf("%c%16" PRIx64, s, node->ip); |
a6ffaf91 | 1588 | |
a4eb24a4 AH |
1589 | if (node->map) |
1590 | addr = node->map->map_ip(node->map, node->ip); | |
1591 | ||
787bef17 | 1592 | if (print_sym) { |
547a92e0 | 1593 | printf(" "); |
251f426f | 1594 | if (print_symoffset) { |
a4eb24a4 | 1595 | node_al.addr = addr; |
a2cb3cf2 AH |
1596 | node_al.map = node->map; |
1597 | symbol__fprintf_symname_offs(node->sym, &node_al, stdout); | |
251f426f DA |
1598 | } else |
1599 | symbol__fprintf_symname(node->sym, stdout); | |
610723f2 | 1600 | } |
251f426f | 1601 | |
610723f2 | 1602 | if (print_dso) { |
547a92e0 | 1603 | printf(" ("); |
52deff71 | 1604 | map__fprintf_dsoname(node->map, stdout); |
547a92e0 | 1605 | printf(")"); |
787bef17 | 1606 | } |
b0b35f01 | 1607 | |
cc8fae1d AH |
1608 | if (print_srcline) |
1609 | map__fprintf_srcline(node->map, addr, "\n ", | |
1610 | stdout); | |
1611 | ||
b0b35f01 DA |
1612 | if (!print_oneline) |
1613 | printf("\n"); | |
c0230b2b | 1614 | |
307cbb92 | 1615 | stack_depth--; |
d2ff1b14 DA |
1616 | next: |
1617 | callchain_cursor_advance(&callchain_cursor); | |
c0230b2b DA |
1618 | } |
1619 | ||
1620 | } else { | |
a2cb3cf2 | 1621 | if (al->sym && al->sym->ignore) |
d2ff1b14 DA |
1622 | return; |
1623 | ||
a6ffaf91 DA |
1624 | if (print_ip) |
1625 | printf("%16" PRIx64, sample->ip); | |
1626 | ||
787bef17 | 1627 | if (print_sym) { |
547a92e0 | 1628 | printf(" "); |
a978f2ab | 1629 | if (print_symoffset) |
a2cb3cf2 | 1630 | symbol__fprintf_symname_offs(al->sym, al, |
a978f2ab AN |
1631 | stdout); |
1632 | else | |
a2cb3cf2 | 1633 | symbol__fprintf_symname(al->sym, stdout); |
610723f2 DA |
1634 | } |
1635 | ||
1636 | if (print_dso) { | |
547a92e0 | 1637 | printf(" ("); |
a2cb3cf2 | 1638 | map__fprintf_dsoname(al->map, stdout); |
547a92e0 | 1639 | printf(")"); |
787bef17 | 1640 | } |
cc8fae1d AH |
1641 | |
1642 | if (print_srcline) | |
1643 | map__fprintf_srcline(al->map, al->addr, "\n ", stdout); | |
c0230b2b DA |
1644 | } |
1645 | } | |
5d67be97 AB |
1646 | |
1647 | int perf_session__cpu_bitmap(struct perf_session *session, | |
1648 | const char *cpu_list, unsigned long *cpu_bitmap) | |
1649 | { | |
8bac41cb | 1650 | int i, err = -1; |
5d67be97 AB |
1651 | struct cpu_map *map; |
1652 | ||
1653 | for (i = 0; i < PERF_TYPE_MAX; ++i) { | |
1654 | struct perf_evsel *evsel; | |
1655 | ||
1656 | evsel = perf_session__find_first_evtype(session, i); | |
1657 | if (!evsel) | |
1658 | continue; | |
1659 | ||
1660 | if (!(evsel->attr.sample_type & PERF_SAMPLE_CPU)) { | |
1661 | pr_err("File does not contain CPU events. " | |
1662 | "Remove -c option to proceed.\n"); | |
1663 | return -1; | |
1664 | } | |
1665 | } | |
1666 | ||
1667 | map = cpu_map__new(cpu_list); | |
47fbe53b DA |
1668 | if (map == NULL) { |
1669 | pr_err("Invalid cpu_list\n"); | |
1670 | return -1; | |
1671 | } | |
5d67be97 AB |
1672 | |
1673 | for (i = 0; i < map->nr; i++) { | |
1674 | int cpu = map->map[i]; | |
1675 | ||
1676 | if (cpu >= MAX_NR_CPUS) { | |
1677 | pr_err("Requested CPU %d too large. " | |
1678 | "Consider raising MAX_NR_CPUS\n", cpu); | |
8bac41cb | 1679 | goto out_delete_map; |
5d67be97 AB |
1680 | } |
1681 | ||
1682 | set_bit(cpu, cpu_bitmap); | |
1683 | } | |
1684 | ||
8bac41cb SF |
1685 | err = 0; |
1686 | ||
1687 | out_delete_map: | |
1688 | cpu_map__delete(map); | |
1689 | return err; | |
5d67be97 | 1690 | } |
fbe96f29 SE |
1691 | |
1692 | void perf_session__fprintf_info(struct perf_session *session, FILE *fp, | |
1693 | bool full) | |
1694 | { | |
1695 | struct stat st; | |
c5765ece | 1696 | int fd, ret; |
fbe96f29 SE |
1697 | |
1698 | if (session == NULL || fp == NULL) | |
1699 | return; | |
1700 | ||
c5765ece MI |
1701 | fd = perf_data_file__fd(session->file); |
1702 | ||
cc9784bd | 1703 | ret = fstat(fd, &st); |
fbe96f29 SE |
1704 | if (ret == -1) |
1705 | return; | |
1706 | ||
1707 | fprintf(fp, "# ========\n"); | |
1708 | fprintf(fp, "# captured on: %s", ctime(&st.st_ctime)); | |
1709 | perf_header__fprintf_info(session, fp, full); | |
1710 | fprintf(fp, "# ========\n#\n"); | |
1711 | } | |
da378962 ACM |
1712 | |
1713 | ||
1714 | int __perf_session__set_tracepoints_handlers(struct perf_session *session, | |
1715 | const struct perf_evsel_str_handler *assocs, | |
1716 | size_t nr_assocs) | |
1717 | { | |
da378962 | 1718 | struct perf_evsel *evsel; |
da378962 ACM |
1719 | size_t i; |
1720 | int err; | |
1721 | ||
1722 | for (i = 0; i < nr_assocs; i++) { | |
ccf53eac ACM |
1723 | /* |
1724 | * Adding a handler for an event not in the session, | |
1725 | * just ignore it. | |
1726 | */ | |
1727 | evsel = perf_evlist__find_tracepoint_by_name(session->evlist, assocs[i].name); | |
da378962 | 1728 | if (evsel == NULL) |
ccf53eac | 1729 | continue; |
da378962 ACM |
1730 | |
1731 | err = -EEXIST; | |
744a9719 | 1732 | if (evsel->handler != NULL) |
ccf53eac | 1733 | goto out; |
744a9719 | 1734 | evsel->handler = assocs[i].handler; |
da378962 ACM |
1735 | } |
1736 | ||
1737 | err = 0; | |
1738 | out: | |
1739 | return err; | |
da378962 | 1740 | } |