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" |
d40b4a15 | 17 | #include "asm/bug.h" |
94c744b6 | 18 | |
316c7136 | 19 | static int perf_session__open(struct perf_session *session) |
94c744b6 | 20 | { |
316c7136 | 21 | struct perf_data_file *file = session->file; |
8dc58101 | 22 | |
316c7136 | 23 | if (perf_session__read_header(session) < 0) { |
69996df4 | 24 | pr_err("incompatible file format (rerun with -v to learn more)"); |
6a4d98d7 | 25 | return -1; |
94c744b6 ACM |
26 | } |
27 | ||
cc9784bd JO |
28 | if (perf_data_file__is_pipe(file)) |
29 | return 0; | |
30 | ||
316c7136 | 31 | if (!perf_evlist__valid_sample_type(session->evlist)) { |
c2a70653 | 32 | pr_err("non matching sample_type"); |
6a4d98d7 | 33 | return -1; |
c2a70653 ACM |
34 | } |
35 | ||
316c7136 | 36 | if (!perf_evlist__valid_sample_id_all(session->evlist)) { |
c2a70653 | 37 | pr_err("non matching sample_id_all"); |
6a4d98d7 | 38 | return -1; |
c2a70653 ACM |
39 | } |
40 | ||
316c7136 | 41 | if (!perf_evlist__valid_read_format(session->evlist)) { |
9ede473c | 42 | pr_err("non matching read_format"); |
6a4d98d7 | 43 | return -1; |
9ede473c JO |
44 | } |
45 | ||
94c744b6 | 46 | return 0; |
94c744b6 ACM |
47 | } |
48 | ||
7b56cce2 | 49 | void perf_session__set_id_hdr_size(struct perf_session *session) |
9c90a61c | 50 | { |
7b56cce2 ACM |
51 | u16 id_hdr_size = perf_evlist__id_hdr_size(session->evlist); |
52 | ||
7b56cce2 | 53 | machines__set_id_hdr_size(&session->machines, id_hdr_size); |
9c90a61c ACM |
54 | } |
55 | ||
316c7136 | 56 | int perf_session__create_kernel_maps(struct perf_session *session) |
a1645ce1 | 57 | { |
316c7136 | 58 | int ret = machine__create_kernel_maps(&session->machines.host); |
a1645ce1 | 59 | |
a1645ce1 | 60 | if (ret >= 0) |
316c7136 | 61 | ret = machines__create_guest_kernel_maps(&session->machines); |
a1645ce1 ZY |
62 | return ret; |
63 | } | |
64 | ||
316c7136 | 65 | static void perf_session__destroy_kernel_maps(struct perf_session *session) |
076c6e45 | 66 | { |
316c7136 | 67 | machines__destroy_kernel_maps(&session->machines); |
076c6e45 ACM |
68 | } |
69 | ||
f5fc1412 JO |
70 | struct perf_session *perf_session__new(struct perf_data_file *file, |
71 | bool repipe, struct perf_tool *tool) | |
94c744b6 | 72 | { |
316c7136 | 73 | struct perf_session *session = zalloc(sizeof(*session)); |
efad1415 | 74 | |
316c7136 | 75 | if (!session) |
94c744b6 ACM |
76 | goto out; |
77 | ||
316c7136 | 78 | session->repipe = repipe; |
fc12482f JO |
79 | INIT_LIST_HEAD(&session->ordered_events.events); |
80 | INIT_LIST_HEAD(&session->ordered_events.cache); | |
37e39aa8 | 81 | INIT_LIST_HEAD(&session->ordered_events.to_free); |
8d99a6ce JO |
82 | session->ordered_events.max_alloc_size = (u64) -1; |
83 | session->ordered_events.cur_alloc_size = 0; | |
316c7136 | 84 | machines__init(&session->machines); |
94c744b6 | 85 | |
6a4d98d7 JO |
86 | if (file) { |
87 | if (perf_data_file__open(file)) | |
64abebf7 | 88 | goto out_delete; |
6a4d98d7 | 89 | |
316c7136 | 90 | session->file = file; |
6a4d98d7 JO |
91 | |
92 | if (perf_data_file__is_read(file)) { | |
316c7136 | 93 | if (perf_session__open(session) < 0) |
6a4d98d7 JO |
94 | goto out_close; |
95 | ||
316c7136 | 96 | perf_session__set_id_hdr_size(session); |
6a4d98d7 JO |
97 | } |
98 | } | |
99 | ||
100 | if (!file || perf_data_file__is_write(file)) { | |
64abebf7 ACM |
101 | /* |
102 | * In O_RDONLY mode this will be performed when reading the | |
8115d60c | 103 | * kernel MMAP event, in perf_event__process_mmap(). |
64abebf7 | 104 | */ |
316c7136 | 105 | if (perf_session__create_kernel_maps(session) < 0) |
64abebf7 ACM |
106 | goto out_delete; |
107 | } | |
d549c769 | 108 | |
45694aa7 | 109 | if (tool && tool->ordering_requires_timestamps && |
0a8cb85c | 110 | tool->ordered_events && !perf_evlist__sample_id_all(session->evlist)) { |
21ef97f0 | 111 | dump_printf("WARNING: No sample_id_all support, falling back to unordered processing\n"); |
0a8cb85c | 112 | tool->ordered_events = false; |
21ef97f0 IM |
113 | } |
114 | ||
316c7136 | 115 | return session; |
6a4d98d7 JO |
116 | |
117 | out_close: | |
118 | perf_data_file__close(file); | |
119 | out_delete: | |
316c7136 | 120 | perf_session__delete(session); |
6a4d98d7 | 121 | out: |
4aa65636 | 122 | return NULL; |
94c744b6 ACM |
123 | } |
124 | ||
b424eba2 ACM |
125 | static void perf_session__delete_dead_threads(struct perf_session *session) |
126 | { | |
876650e6 | 127 | machine__delete_dead_threads(&session->machines.host); |
b424eba2 ACM |
128 | } |
129 | ||
b424eba2 ACM |
130 | static void perf_session__delete_threads(struct perf_session *session) |
131 | { | |
876650e6 | 132 | machine__delete_threads(&session->machines.host); |
b424eba2 ACM |
133 | } |
134 | ||
03cd2094 NK |
135 | static void perf_session_env__delete(struct perf_session_env *env) |
136 | { | |
74cf249d ACM |
137 | zfree(&env->hostname); |
138 | zfree(&env->os_release); | |
139 | zfree(&env->version); | |
140 | zfree(&env->arch); | |
141 | zfree(&env->cpu_desc); | |
142 | zfree(&env->cpuid); | |
143 | ||
144 | zfree(&env->cmdline); | |
145 | zfree(&env->sibling_cores); | |
146 | zfree(&env->sibling_threads); | |
147 | zfree(&env->numa_nodes); | |
148 | zfree(&env->pmu_mappings); | |
03cd2094 NK |
149 | } |
150 | ||
316c7136 | 151 | void perf_session__delete(struct perf_session *session) |
94c744b6 | 152 | { |
316c7136 ACM |
153 | perf_session__destroy_kernel_maps(session); |
154 | perf_session__delete_dead_threads(session); | |
155 | perf_session__delete_threads(session); | |
156 | perf_session_env__delete(&session->header.env); | |
157 | machines__exit(&session->machines); | |
158 | if (session->file) | |
159 | perf_data_file__close(session->file); | |
160 | free(session); | |
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) { | |
0a8cb85c | 244 | if (tool->ordered_events) |
45694aa7 | 245 | tool->finished_round = process_finished_round; |
d6b17beb | 246 | else |
45694aa7 | 247 | tool->finished_round = process_finished_round_stub; |
d6b17beb | 248 | } |
06aae590 | 249 | } |
80c0120a | 250 | |
268fb20f JO |
251 | static void swap_sample_id_all(union perf_event *event, void *data) |
252 | { | |
253 | void *end = (void *) event + event->header.size; | |
254 | int size = end - data; | |
255 | ||
256 | BUG_ON(size % sizeof(u64)); | |
257 | mem_bswap_64(data, size); | |
258 | } | |
259 | ||
260 | static void perf_event__all64_swap(union perf_event *event, | |
1d037ca1 | 261 | bool sample_id_all __maybe_unused) |
ba21594c | 262 | { |
8115d60c ACM |
263 | struct perf_event_header *hdr = &event->header; |
264 | mem_bswap_64(hdr + 1, event->header.size - sizeof(*hdr)); | |
ba21594c ACM |
265 | } |
266 | ||
268fb20f | 267 | static void perf_event__comm_swap(union perf_event *event, bool sample_id_all) |
ba21594c | 268 | { |
8115d60c ACM |
269 | event->comm.pid = bswap_32(event->comm.pid); |
270 | event->comm.tid = bswap_32(event->comm.tid); | |
268fb20f JO |
271 | |
272 | if (sample_id_all) { | |
273 | void *data = &event->comm.comm; | |
274 | ||
9ac3e487 | 275 | data += PERF_ALIGN(strlen(data) + 1, sizeof(u64)); |
268fb20f JO |
276 | swap_sample_id_all(event, data); |
277 | } | |
ba21594c ACM |
278 | } |
279 | ||
268fb20f JO |
280 | static void perf_event__mmap_swap(union perf_event *event, |
281 | bool sample_id_all) | |
ba21594c | 282 | { |
8115d60c ACM |
283 | event->mmap.pid = bswap_32(event->mmap.pid); |
284 | event->mmap.tid = bswap_32(event->mmap.tid); | |
285 | event->mmap.start = bswap_64(event->mmap.start); | |
286 | event->mmap.len = bswap_64(event->mmap.len); | |
287 | event->mmap.pgoff = bswap_64(event->mmap.pgoff); | |
268fb20f JO |
288 | |
289 | if (sample_id_all) { | |
290 | void *data = &event->mmap.filename; | |
291 | ||
9ac3e487 | 292 | data += PERF_ALIGN(strlen(data) + 1, sizeof(u64)); |
268fb20f JO |
293 | swap_sample_id_all(event, data); |
294 | } | |
ba21594c ACM |
295 | } |
296 | ||
5c5e854b SE |
297 | static void perf_event__mmap2_swap(union perf_event *event, |
298 | bool sample_id_all) | |
299 | { | |
300 | event->mmap2.pid = bswap_32(event->mmap2.pid); | |
301 | event->mmap2.tid = bswap_32(event->mmap2.tid); | |
302 | event->mmap2.start = bswap_64(event->mmap2.start); | |
303 | event->mmap2.len = bswap_64(event->mmap2.len); | |
304 | event->mmap2.pgoff = bswap_64(event->mmap2.pgoff); | |
305 | event->mmap2.maj = bswap_32(event->mmap2.maj); | |
306 | event->mmap2.min = bswap_32(event->mmap2.min); | |
307 | event->mmap2.ino = bswap_64(event->mmap2.ino); | |
308 | ||
309 | if (sample_id_all) { | |
310 | void *data = &event->mmap2.filename; | |
311 | ||
312 | data += PERF_ALIGN(strlen(data) + 1, sizeof(u64)); | |
313 | swap_sample_id_all(event, data); | |
314 | } | |
315 | } | |
268fb20f | 316 | static void perf_event__task_swap(union perf_event *event, bool sample_id_all) |
ba21594c | 317 | { |
8115d60c ACM |
318 | event->fork.pid = bswap_32(event->fork.pid); |
319 | event->fork.tid = bswap_32(event->fork.tid); | |
320 | event->fork.ppid = bswap_32(event->fork.ppid); | |
321 | event->fork.ptid = bswap_32(event->fork.ptid); | |
322 | event->fork.time = bswap_64(event->fork.time); | |
268fb20f JO |
323 | |
324 | if (sample_id_all) | |
325 | swap_sample_id_all(event, &event->fork + 1); | |
ba21594c ACM |
326 | } |
327 | ||
268fb20f | 328 | static void perf_event__read_swap(union perf_event *event, bool sample_id_all) |
ba21594c | 329 | { |
8115d60c ACM |
330 | event->read.pid = bswap_32(event->read.pid); |
331 | event->read.tid = bswap_32(event->read.tid); | |
332 | event->read.value = bswap_64(event->read.value); | |
333 | event->read.time_enabled = bswap_64(event->read.time_enabled); | |
334 | event->read.time_running = bswap_64(event->read.time_running); | |
335 | event->read.id = bswap_64(event->read.id); | |
268fb20f JO |
336 | |
337 | if (sample_id_all) | |
338 | swap_sample_id_all(event, &event->read + 1); | |
ba21594c ACM |
339 | } |
340 | ||
dd96c46b JO |
341 | static void perf_event__throttle_swap(union perf_event *event, |
342 | bool sample_id_all) | |
343 | { | |
344 | event->throttle.time = bswap_64(event->throttle.time); | |
345 | event->throttle.id = bswap_64(event->throttle.id); | |
346 | event->throttle.stream_id = bswap_64(event->throttle.stream_id); | |
347 | ||
348 | if (sample_id_all) | |
349 | swap_sample_id_all(event, &event->throttle + 1); | |
350 | } | |
351 | ||
e108c66e JO |
352 | static u8 revbyte(u8 b) |
353 | { | |
354 | int rev = (b >> 4) | ((b & 0xf) << 4); | |
355 | rev = ((rev & 0xcc) >> 2) | ((rev & 0x33) << 2); | |
356 | rev = ((rev & 0xaa) >> 1) | ((rev & 0x55) << 1); | |
357 | return (u8) rev; | |
358 | } | |
359 | ||
360 | /* | |
361 | * XXX this is hack in attempt to carry flags bitfield | |
362 | * throught endian village. ABI says: | |
363 | * | |
364 | * Bit-fields are allocated from right to left (least to most significant) | |
365 | * on little-endian implementations and from left to right (most to least | |
366 | * significant) on big-endian implementations. | |
367 | * | |
368 | * The above seems to be byte specific, so we need to reverse each | |
369 | * byte of the bitfield. 'Internet' also says this might be implementation | |
370 | * specific and we probably need proper fix and carry perf_event_attr | |
371 | * bitfield flags in separate data file FEAT_ section. Thought this seems | |
372 | * to work for now. | |
373 | */ | |
374 | static void swap_bitfield(u8 *p, unsigned len) | |
375 | { | |
376 | unsigned i; | |
377 | ||
378 | for (i = 0; i < len; i++) { | |
379 | *p = revbyte(*p); | |
380 | p++; | |
381 | } | |
382 | } | |
383 | ||
eda3913b DA |
384 | /* exported for swapping attributes in file header */ |
385 | void perf_event__attr_swap(struct perf_event_attr *attr) | |
386 | { | |
387 | attr->type = bswap_32(attr->type); | |
388 | attr->size = bswap_32(attr->size); | |
389 | attr->config = bswap_64(attr->config); | |
390 | attr->sample_period = bswap_64(attr->sample_period); | |
391 | attr->sample_type = bswap_64(attr->sample_type); | |
392 | attr->read_format = bswap_64(attr->read_format); | |
393 | attr->wakeup_events = bswap_32(attr->wakeup_events); | |
394 | attr->bp_type = bswap_32(attr->bp_type); | |
395 | attr->bp_addr = bswap_64(attr->bp_addr); | |
396 | attr->bp_len = bswap_64(attr->bp_len); | |
7db59528 AH |
397 | attr->branch_sample_type = bswap_64(attr->branch_sample_type); |
398 | attr->sample_regs_user = bswap_64(attr->sample_regs_user); | |
399 | attr->sample_stack_user = bswap_32(attr->sample_stack_user); | |
e108c66e JO |
400 | |
401 | swap_bitfield((u8 *) (&attr->read_format + 1), sizeof(u64)); | |
eda3913b DA |
402 | } |
403 | ||
268fb20f | 404 | static void perf_event__hdr_attr_swap(union perf_event *event, |
1d037ca1 | 405 | bool sample_id_all __maybe_unused) |
2c46dbb5 TZ |
406 | { |
407 | size_t size; | |
408 | ||
eda3913b | 409 | perf_event__attr_swap(&event->attr.attr); |
2c46dbb5 | 410 | |
8115d60c ACM |
411 | size = event->header.size; |
412 | size -= (void *)&event->attr.id - (void *)event; | |
413 | mem_bswap_64(event->attr.id, size); | |
2c46dbb5 TZ |
414 | } |
415 | ||
268fb20f | 416 | static void perf_event__event_type_swap(union perf_event *event, |
1d037ca1 | 417 | bool sample_id_all __maybe_unused) |
cd19a035 | 418 | { |
8115d60c ACM |
419 | event->event_type.event_type.event_id = |
420 | bswap_64(event->event_type.event_type.event_id); | |
cd19a035 TZ |
421 | } |
422 | ||
268fb20f | 423 | static void perf_event__tracing_data_swap(union perf_event *event, |
1d037ca1 | 424 | bool sample_id_all __maybe_unused) |
9215545e | 425 | { |
8115d60c | 426 | event->tracing_data.size = bswap_32(event->tracing_data.size); |
9215545e TZ |
427 | } |
428 | ||
268fb20f JO |
429 | typedef void (*perf_event__swap_op)(union perf_event *event, |
430 | bool sample_id_all); | |
ba21594c | 431 | |
8115d60c ACM |
432 | static perf_event__swap_op perf_event__swap_ops[] = { |
433 | [PERF_RECORD_MMAP] = perf_event__mmap_swap, | |
5c5e854b | 434 | [PERF_RECORD_MMAP2] = perf_event__mmap2_swap, |
8115d60c ACM |
435 | [PERF_RECORD_COMM] = perf_event__comm_swap, |
436 | [PERF_RECORD_FORK] = perf_event__task_swap, | |
437 | [PERF_RECORD_EXIT] = perf_event__task_swap, | |
438 | [PERF_RECORD_LOST] = perf_event__all64_swap, | |
439 | [PERF_RECORD_READ] = perf_event__read_swap, | |
dd96c46b JO |
440 | [PERF_RECORD_THROTTLE] = perf_event__throttle_swap, |
441 | [PERF_RECORD_UNTHROTTLE] = perf_event__throttle_swap, | |
8115d60c | 442 | [PERF_RECORD_SAMPLE] = perf_event__all64_swap, |
eda3913b | 443 | [PERF_RECORD_HEADER_ATTR] = perf_event__hdr_attr_swap, |
8115d60c ACM |
444 | [PERF_RECORD_HEADER_EVENT_TYPE] = perf_event__event_type_swap, |
445 | [PERF_RECORD_HEADER_TRACING_DATA] = perf_event__tracing_data_swap, | |
446 | [PERF_RECORD_HEADER_BUILD_ID] = NULL, | |
447 | [PERF_RECORD_HEADER_MAX] = NULL, | |
ba21594c ACM |
448 | }; |
449 | ||
37e39aa8 | 450 | struct ordered_event { |
c61e52ee | 451 | u64 timestamp; |
e4c2df13 | 452 | u64 file_offset; |
8115d60c | 453 | union perf_event *event; |
c61e52ee FW |
454 | struct list_head list; |
455 | }; | |
456 | ||
d8836b5d JO |
457 | enum oe_flush { |
458 | OE_FLUSH__FINAL, | |
459 | OE_FLUSH__ROUND, | |
d40b4a15 | 460 | OE_FLUSH__HALF, |
d8836b5d JO |
461 | }; |
462 | ||
020bb75a TG |
463 | static void perf_session_free_sample_buffers(struct perf_session *session) |
464 | { | |
37e39aa8 | 465 | struct ordered_events *oe = &session->ordered_events; |
020bb75a | 466 | |
37e39aa8 JO |
467 | while (!list_empty(&oe->to_free)) { |
468 | struct ordered_event *event; | |
020bb75a | 469 | |
37e39aa8 JO |
470 | event = list_entry(oe->to_free.next, struct ordered_event, list); |
471 | list_del(&event->list); | |
472 | free(event); | |
020bb75a TG |
473 | } |
474 | } | |
475 | ||
c64c7e1a JO |
476 | /* The queue is ordered by time */ |
477 | static void queue_event(struct ordered_events *oe, struct ordered_event *new) | |
478 | { | |
479 | struct ordered_event *last = oe->last; | |
480 | u64 timestamp = new->timestamp; | |
481 | struct list_head *p; | |
482 | ||
483 | ++oe->nr_events; | |
484 | oe->last = new; | |
485 | ||
486 | if (!last) { | |
487 | list_add(&new->list, &oe->events); | |
488 | oe->max_timestamp = timestamp; | |
489 | return; | |
490 | } | |
491 | ||
492 | /* | |
493 | * last event might point to some random place in the list as it's | |
494 | * the last queued event. We expect that the new event is close to | |
495 | * this. | |
496 | */ | |
497 | if (last->timestamp <= timestamp) { | |
498 | while (last->timestamp <= timestamp) { | |
499 | p = last->list.next; | |
500 | if (p == &oe->events) { | |
501 | list_add_tail(&new->list, &oe->events); | |
502 | oe->max_timestamp = timestamp; | |
503 | return; | |
504 | } | |
505 | last = list_entry(p, struct ordered_event, list); | |
506 | } | |
507 | list_add_tail(&new->list, &last->list); | |
508 | } else { | |
509 | while (last->timestamp > timestamp) { | |
510 | p = last->list.prev; | |
511 | if (p == &oe->events) { | |
512 | list_add(&new->list, &oe->events); | |
513 | return; | |
514 | } | |
515 | last = list_entry(p, struct ordered_event, list); | |
516 | } | |
517 | list_add(&new->list, &last->list); | |
518 | } | |
519 | } | |
520 | ||
521 | #define MAX_SAMPLE_BUFFER (64 * 1024 / sizeof(struct ordered_event)) | |
522 | static struct ordered_event *alloc_event(struct ordered_events *oe) | |
523 | { | |
524 | struct list_head *cache = &oe->cache; | |
8d99a6ce | 525 | struct ordered_event *new = NULL; |
c64c7e1a JO |
526 | |
527 | if (!list_empty(cache)) { | |
528 | new = list_entry(cache->next, struct ordered_event, list); | |
529 | list_del(&new->list); | |
530 | } else if (oe->buffer) { | |
531 | new = oe->buffer + oe->buffer_idx; | |
532 | if (++oe->buffer_idx == MAX_SAMPLE_BUFFER) | |
533 | oe->buffer = NULL; | |
8d99a6ce JO |
534 | } else if (oe->cur_alloc_size < oe->max_alloc_size) { |
535 | size_t size = MAX_SAMPLE_BUFFER * sizeof(*new); | |
536 | ||
537 | oe->buffer = malloc(size); | |
c64c7e1a JO |
538 | if (!oe->buffer) |
539 | return NULL; | |
8d99a6ce JO |
540 | |
541 | oe->cur_alloc_size += size; | |
c64c7e1a JO |
542 | list_add(&oe->buffer->list, &oe->to_free); |
543 | ||
544 | /* First entry is abused to maintain the to_free list. */ | |
545 | oe->buffer_idx = 2; | |
546 | new = oe->buffer + 1; | |
547 | } | |
548 | ||
549 | return new; | |
550 | } | |
551 | ||
552 | static struct ordered_event * | |
553 | ordered_events__new(struct ordered_events *oe, u64 timestamp) | |
554 | { | |
555 | struct ordered_event *new; | |
556 | ||
557 | new = alloc_event(oe); | |
558 | if (new) { | |
559 | new->timestamp = timestamp; | |
560 | queue_event(oe, new); | |
561 | } | |
562 | ||
563 | return new; | |
564 | } | |
565 | ||
566 | static void | |
567 | ordered_events__delete(struct ordered_events *oe, struct ordered_event *event) | |
568 | { | |
569 | list_del(&event->list); | |
570 | list_add(&event->list, &oe->cache); | |
571 | oe->nr_events--; | |
572 | } | |
573 | ||
cbf41645 | 574 | static int perf_session_deliver_event(struct perf_session *session, |
8115d60c | 575 | union perf_event *event, |
8d50e5b4 | 576 | struct perf_sample *sample, |
45694aa7 | 577 | struct perf_tool *tool, |
f74725dc | 578 | u64 file_offset); |
cbf41645 | 579 | |
d8836b5d JO |
580 | static int __ordered_events__flush(struct perf_session *s, |
581 | struct perf_tool *tool) | |
c61e52ee | 582 | { |
37e39aa8 | 583 | struct ordered_events *oe = &s->ordered_events; |
fc12482f | 584 | struct list_head *head = &oe->events; |
37e39aa8 | 585 | struct ordered_event *tmp, *iter; |
8d50e5b4 | 586 | struct perf_sample sample; |
37e39aa8 | 587 | u64 limit = oe->next_flush; |
fc12482f | 588 | u64 last_ts = oe->last ? oe->last->timestamp : 0ULL; |
526fd8d4 | 589 | bool show_progress = limit == ULLONG_MAX; |
4d3001fd | 590 | struct ui_progress prog; |
5538beca | 591 | int ret; |
c61e52ee | 592 | |
0a8cb85c | 593 | if (!tool->ordered_events || !limit) |
d25380cd | 594 | return 0; |
c61e52ee | 595 | |
4d3001fd | 596 | if (show_progress) |
fc12482f | 597 | ui_progress__init(&prog, oe->nr_events, "Processing time ordered events..."); |
4d3001fd | 598 | |
c61e52ee | 599 | list_for_each_entry_safe(iter, tmp, head, list) { |
33e940a2 ACM |
600 | if (session_done()) |
601 | return 0; | |
602 | ||
c61e52ee | 603 | if (iter->timestamp > limit) |
a1225dec | 604 | break; |
c61e52ee | 605 | |
0807d2d8 | 606 | ret = perf_evlist__parse_sample(s->evlist, iter->event, &sample); |
5538beca FW |
607 | if (ret) |
608 | pr_err("Can't parse sample, err = %d\n", ret); | |
d25380cd DA |
609 | else { |
610 | ret = perf_session_deliver_event(s, iter->event, &sample, tool, | |
611 | iter->file_offset); | |
612 | if (ret) | |
613 | return ret; | |
614 | } | |
c61e52ee | 615 | |
c64c7e1a | 616 | ordered_events__delete(oe, iter); |
37e39aa8 | 617 | oe->last_flush = iter->timestamp; |
4d3001fd ACM |
618 | |
619 | if (show_progress) | |
620 | ui_progress__update(&prog, 1); | |
c61e52ee | 621 | } |
a1225dec | 622 | |
fc12482f JO |
623 | if (list_empty(head)) |
624 | oe->last = NULL; | |
625 | else if (last_ts <= limit) | |
626 | oe->last = list_entry(head->prev, struct ordered_event, list); | |
88660563 | 627 | |
d25380cd | 628 | return 0; |
c61e52ee FW |
629 | } |
630 | ||
d8836b5d JO |
631 | static int ordered_events__flush(struct perf_session *s, struct perf_tool *tool, |
632 | enum oe_flush how) | |
633 | { | |
634 | struct ordered_events *oe = &s->ordered_events; | |
635 | int err; | |
636 | ||
637 | switch (how) { | |
638 | case OE_FLUSH__FINAL: | |
639 | oe->next_flush = ULLONG_MAX; | |
640 | break; | |
641 | ||
d40b4a15 JO |
642 | case OE_FLUSH__HALF: |
643 | { | |
644 | struct ordered_event *first, *last; | |
645 | struct list_head *head = &oe->events; | |
646 | ||
647 | first = list_entry(head->next, struct ordered_event, list); | |
648 | last = oe->last; | |
649 | ||
650 | /* Warn if we are called before any event got allocated. */ | |
651 | if (WARN_ONCE(!last || list_empty(head), "empty queue")) | |
652 | return 0; | |
653 | ||
654 | oe->next_flush = first->timestamp; | |
655 | oe->next_flush += (last->timestamp - first->timestamp) / 2; | |
656 | break; | |
657 | } | |
658 | ||
d8836b5d JO |
659 | case OE_FLUSH__ROUND: |
660 | default: | |
661 | break; | |
662 | }; | |
663 | ||
664 | err = __ordered_events__flush(s, tool); | |
665 | ||
666 | if (!err) { | |
667 | if (how == OE_FLUSH__ROUND) | |
668 | oe->next_flush = oe->max_timestamp; | |
669 | } | |
670 | ||
671 | return err; | |
672 | } | |
673 | ||
d6b17beb FW |
674 | /* |
675 | * When perf record finishes a pass on every buffers, it records this pseudo | |
676 | * event. | |
677 | * We record the max timestamp t found in the pass n. | |
678 | * Assuming these timestamps are monotonic across cpus, we know that if | |
679 | * a buffer still has events with timestamps below t, they will be all | |
680 | * available and then read in the pass n + 1. | |
681 | * Hence when we start to read the pass n + 2, we can safely flush every | |
682 | * events with timestamps below t. | |
683 | * | |
684 | * ============ PASS n ================= | |
685 | * CPU 0 | CPU 1 | |
686 | * | | |
687 | * cnt1 timestamps | cnt2 timestamps | |
688 | * 1 | 2 | |
689 | * 2 | 3 | |
690 | * - | 4 <--- max recorded | |
691 | * | |
692 | * ============ PASS n + 1 ============== | |
693 | * CPU 0 | CPU 1 | |
694 | * | | |
695 | * cnt1 timestamps | cnt2 timestamps | |
696 | * 3 | 5 | |
697 | * 4 | 6 | |
698 | * 5 | 7 <---- max recorded | |
699 | * | |
700 | * Flush every events below timestamp 4 | |
701 | * | |
702 | * ============ PASS n + 2 ============== | |
703 | * CPU 0 | CPU 1 | |
704 | * | | |
705 | * cnt1 timestamps | cnt2 timestamps | |
706 | * 6 | 8 | |
707 | * 7 | 9 | |
708 | * - | 10 | |
709 | * | |
710 | * Flush every events below timestamp 7 | |
711 | * etc... | |
712 | */ | |
45694aa7 | 713 | static int process_finished_round(struct perf_tool *tool, |
1d037ca1 | 714 | union perf_event *event __maybe_unused, |
d20deb64 | 715 | struct perf_session *session) |
d6b17beb | 716 | { |
d8836b5d | 717 | return ordered_events__flush(session, tool, OE_FLUSH__ROUND); |
d6b17beb FW |
718 | } |
719 | ||
e30b88a7 | 720 | int perf_session_queue_event(struct perf_session *s, union perf_event *event, |
d40b4a15 JO |
721 | struct perf_tool *tool, struct perf_sample *sample, |
722 | u64 file_offset) | |
c61e52ee | 723 | { |
37e39aa8 | 724 | struct ordered_events *oe = &s->ordered_events; |
8d50e5b4 | 725 | u64 timestamp = sample->time; |
37e39aa8 | 726 | struct ordered_event *new; |
c61e52ee | 727 | |
79a14c1f | 728 | if (!timestamp || timestamp == ~0ULL) |
cbf41645 TG |
729 | return -ETIME; |
730 | ||
37e39aa8 | 731 | if (timestamp < s->ordered_events.last_flush) { |
c61e52ee FW |
732 | printf("Warning: Timestamp below last timeslice flush\n"); |
733 | return -EINVAL; | |
734 | } | |
735 | ||
c64c7e1a | 736 | new = ordered_events__new(oe, timestamp); |
d40b4a15 JO |
737 | if (!new) { |
738 | ordered_events__flush(s, tool, OE_FLUSH__HALF); | |
739 | new = ordered_events__new(oe, timestamp); | |
740 | } | |
741 | ||
c64c7e1a JO |
742 | if (!new) |
743 | return -ENOMEM; | |
c61e52ee | 744 | |
e4c2df13 | 745 | new->file_offset = file_offset; |
fe174207 | 746 | new->event = event; |
640c03ce ACM |
747 | return 0; |
748 | } | |
c61e52ee | 749 | |
8d50e5b4 | 750 | static void callchain__printf(struct perf_sample *sample) |
640c03ce ACM |
751 | { |
752 | unsigned int i; | |
c61e52ee | 753 | |
9486aa38 | 754 | printf("... chain: nr:%" PRIu64 "\n", sample->callchain->nr); |
640c03ce ACM |
755 | |
756 | for (i = 0; i < sample->callchain->nr; i++) | |
9486aa38 ACM |
757 | printf("..... %2d: %016" PRIx64 "\n", |
758 | i, sample->callchain->ips[i]); | |
c61e52ee FW |
759 | } |
760 | ||
b5387528 RAV |
761 | static void branch_stack__printf(struct perf_sample *sample) |
762 | { | |
763 | uint64_t i; | |
764 | ||
765 | printf("... branch stack: nr:%" PRIu64 "\n", sample->branch_stack->nr); | |
766 | ||
767 | for (i = 0; i < sample->branch_stack->nr; i++) | |
768 | printf("..... %2"PRIu64": %016" PRIx64 " -> %016" PRIx64 "\n", | |
769 | i, sample->branch_stack->entries[i].from, | |
770 | sample->branch_stack->entries[i].to); | |
771 | } | |
772 | ||
0f6a3015 JO |
773 | static void regs_dump__printf(u64 mask, u64 *regs) |
774 | { | |
775 | unsigned rid, i = 0; | |
776 | ||
777 | for_each_set_bit(rid, (unsigned long *) &mask, sizeof(mask) * 8) { | |
778 | u64 val = regs[i++]; | |
779 | ||
780 | printf(".... %-5s 0x%" PRIx64 "\n", | |
781 | perf_reg_name(rid), val); | |
782 | } | |
783 | } | |
784 | ||
352ea45a | 785 | static void regs_user__printf(struct perf_sample *sample) |
0f6a3015 JO |
786 | { |
787 | struct regs_dump *user_regs = &sample->user_regs; | |
788 | ||
789 | if (user_regs->regs) { | |
352ea45a | 790 | u64 mask = user_regs->mask; |
0f6a3015 JO |
791 | printf("... user regs: mask 0x%" PRIx64 "\n", mask); |
792 | regs_dump__printf(mask, user_regs->regs); | |
793 | } | |
794 | } | |
795 | ||
796 | static void stack_user__printf(struct stack_dump *dump) | |
797 | { | |
798 | printf("... ustack: size %" PRIu64 ", offset 0x%x\n", | |
799 | dump->size, dump->offset); | |
800 | } | |
801 | ||
9c90a61c | 802 | static void perf_session__print_tstamp(struct perf_session *session, |
8115d60c | 803 | union perf_event *event, |
8d50e5b4 | 804 | struct perf_sample *sample) |
9c90a61c | 805 | { |
75562573 | 806 | u64 sample_type = __perf_evlist__combined_sample_type(session->evlist); |
7f3be652 | 807 | |
9c90a61c | 808 | if (event->header.type != PERF_RECORD_SAMPLE && |
5e562474 | 809 | !perf_evlist__sample_id_all(session->evlist)) { |
9c90a61c ACM |
810 | fputs("-1 -1 ", stdout); |
811 | return; | |
812 | } | |
813 | ||
7f3be652 | 814 | if ((sample_type & PERF_SAMPLE_CPU)) |
9c90a61c ACM |
815 | printf("%u ", sample->cpu); |
816 | ||
7f3be652 | 817 | if (sample_type & PERF_SAMPLE_TIME) |
9486aa38 | 818 | printf("%" PRIu64 " ", sample->time); |
9c90a61c ACM |
819 | } |
820 | ||
9ede473c JO |
821 | static void sample_read__printf(struct perf_sample *sample, u64 read_format) |
822 | { | |
823 | printf("... sample_read:\n"); | |
824 | ||
825 | if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED) | |
826 | printf("...... time enabled %016" PRIx64 "\n", | |
827 | sample->read.time_enabled); | |
828 | ||
829 | if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING) | |
830 | printf("...... time running %016" PRIx64 "\n", | |
831 | sample->read.time_running); | |
832 | ||
833 | if (read_format & PERF_FORMAT_GROUP) { | |
834 | u64 i; | |
835 | ||
836 | printf(".... group nr %" PRIu64 "\n", sample->read.group.nr); | |
837 | ||
838 | for (i = 0; i < sample->read.group.nr; i++) { | |
839 | struct sample_read_value *value; | |
840 | ||
841 | value = &sample->read.group.values[i]; | |
842 | printf("..... id %016" PRIx64 | |
843 | ", value %016" PRIx64 "\n", | |
844 | value->id, value->value); | |
845 | } | |
846 | } else | |
847 | printf("..... id %016" PRIx64 ", value %016" PRIx64 "\n", | |
848 | sample->read.one.id, sample->read.one.value); | |
849 | } | |
850 | ||
8115d60c | 851 | static void dump_event(struct perf_session *session, union perf_event *event, |
8d50e5b4 | 852 | u64 file_offset, struct perf_sample *sample) |
9aefcab0 TG |
853 | { |
854 | if (!dump_trace) | |
855 | return; | |
856 | ||
9486aa38 ACM |
857 | printf("\n%#" PRIx64 " [%#x]: event: %d\n", |
858 | file_offset, event->header.size, event->header.type); | |
9aefcab0 TG |
859 | |
860 | trace_event(event); | |
861 | ||
862 | if (sample) | |
863 | perf_session__print_tstamp(session, event, sample); | |
864 | ||
9486aa38 | 865 | printf("%#" PRIx64 " [%#x]: PERF_RECORD_%s", file_offset, |
8115d60c | 866 | event->header.size, perf_event__name(event->header.type)); |
9aefcab0 TG |
867 | } |
868 | ||
0f6a3015 | 869 | static void dump_sample(struct perf_evsel *evsel, union perf_event *event, |
8d50e5b4 | 870 | struct perf_sample *sample) |
9aefcab0 | 871 | { |
7f3be652 ACM |
872 | u64 sample_type; |
873 | ||
ddbc24b7 ACM |
874 | if (!dump_trace) |
875 | return; | |
876 | ||
0ea590ae | 877 | printf("(IP, 0x%x): %d/%d: %#" PRIx64 " period: %" PRIu64 " addr: %#" PRIx64 "\n", |
9486aa38 | 878 | event->header.misc, sample->pid, sample->tid, sample->ip, |
7cec0922 | 879 | sample->period, sample->addr); |
9aefcab0 | 880 | |
0f6a3015 | 881 | sample_type = evsel->attr.sample_type; |
7f3be652 ACM |
882 | |
883 | if (sample_type & PERF_SAMPLE_CALLCHAIN) | |
ddbc24b7 | 884 | callchain__printf(sample); |
b5387528 | 885 | |
7f3be652 | 886 | if (sample_type & PERF_SAMPLE_BRANCH_STACK) |
b5387528 | 887 | branch_stack__printf(sample); |
0f6a3015 JO |
888 | |
889 | if (sample_type & PERF_SAMPLE_REGS_USER) | |
352ea45a | 890 | regs_user__printf(sample); |
0f6a3015 JO |
891 | |
892 | if (sample_type & PERF_SAMPLE_STACK_USER) | |
893 | stack_user__printf(&sample->user_stack); | |
05484298 AK |
894 | |
895 | if (sample_type & PERF_SAMPLE_WEIGHT) | |
896 | printf("... weight: %" PRIu64 "\n", sample->weight); | |
98a3b32c SE |
897 | |
898 | if (sample_type & PERF_SAMPLE_DATA_SRC) | |
899 | printf(" . data_src: 0x%"PRIx64"\n", sample->data_src); | |
9ede473c | 900 | |
475eeab9 AK |
901 | if (sample_type & PERF_SAMPLE_TRANSACTION) |
902 | printf("... transaction: %" PRIx64 "\n", sample->transaction); | |
903 | ||
9ede473c JO |
904 | if (sample_type & PERF_SAMPLE_READ) |
905 | sample_read__printf(sample, evsel->attr.read_format); | |
9aefcab0 TG |
906 | } |
907 | ||
743eb868 ACM |
908 | static struct machine * |
909 | perf_session__find_machine_for_cpumode(struct perf_session *session, | |
ef89325f AH |
910 | union perf_event *event, |
911 | struct perf_sample *sample) | |
743eb868 ACM |
912 | { |
913 | const u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; | |
ad85ace0 | 914 | struct machine *machine; |
743eb868 | 915 | |
7c0f4a41 DA |
916 | if (perf_guest && |
917 | ((cpumode == PERF_RECORD_MISC_GUEST_KERNEL) || | |
918 | (cpumode == PERF_RECORD_MISC_GUEST_USER))) { | |
7fb0a5ee ND |
919 | u32 pid; |
920 | ||
5c5e854b SE |
921 | if (event->header.type == PERF_RECORD_MMAP |
922 | || event->header.type == PERF_RECORD_MMAP2) | |
7fb0a5ee ND |
923 | pid = event->mmap.pid; |
924 | else | |
ef89325f | 925 | pid = sample->pid; |
7fb0a5ee | 926 | |
ad85ace0 DY |
927 | machine = perf_session__find_machine(session, pid); |
928 | if (!machine) | |
929 | machine = perf_session__findnew_machine(session, | |
930 | DEFAULT_GUEST_KERNEL_ID); | |
931 | return machine; | |
7fb0a5ee | 932 | } |
743eb868 | 933 | |
34ba5122 | 934 | return &session->machines.host; |
743eb868 ACM |
935 | } |
936 | ||
e4caec0d JO |
937 | static int deliver_sample_value(struct perf_session *session, |
938 | struct perf_tool *tool, | |
939 | union perf_event *event, | |
940 | struct perf_sample *sample, | |
941 | struct sample_read_value *v, | |
942 | struct machine *machine) | |
943 | { | |
944 | struct perf_sample_id *sid; | |
945 | ||
946 | sid = perf_evlist__id2sid(session->evlist, v->id); | |
947 | if (sid) { | |
948 | sample->id = v->id; | |
949 | sample->period = v->value - sid->period; | |
950 | sid->period = v->value; | |
951 | } | |
952 | ||
953 | if (!sid || sid->evsel == NULL) { | |
954 | ++session->stats.nr_unknown_id; | |
955 | return 0; | |
956 | } | |
957 | ||
958 | return tool->sample(tool, event, sample, sid->evsel, machine); | |
959 | } | |
960 | ||
961 | static int deliver_sample_group(struct perf_session *session, | |
962 | struct perf_tool *tool, | |
963 | union perf_event *event, | |
964 | struct perf_sample *sample, | |
965 | struct machine *machine) | |
966 | { | |
967 | int ret = -EINVAL; | |
968 | u64 i; | |
969 | ||
970 | for (i = 0; i < sample->read.group.nr; i++) { | |
971 | ret = deliver_sample_value(session, tool, event, sample, | |
972 | &sample->read.group.values[i], | |
973 | machine); | |
974 | if (ret) | |
975 | break; | |
976 | } | |
977 | ||
978 | return ret; | |
979 | } | |
980 | ||
981 | static int | |
982 | perf_session__deliver_sample(struct perf_session *session, | |
983 | struct perf_tool *tool, | |
984 | union perf_event *event, | |
985 | struct perf_sample *sample, | |
986 | struct perf_evsel *evsel, | |
987 | struct machine *machine) | |
988 | { | |
989 | /* We know evsel != NULL. */ | |
990 | u64 sample_type = evsel->attr.sample_type; | |
991 | u64 read_format = evsel->attr.read_format; | |
992 | ||
993 | /* Standard sample delievery. */ | |
994 | if (!(sample_type & PERF_SAMPLE_READ)) | |
995 | return tool->sample(tool, event, sample, evsel, machine); | |
996 | ||
997 | /* For PERF_SAMPLE_READ we have either single or group mode. */ | |
998 | if (read_format & PERF_FORMAT_GROUP) | |
999 | return deliver_sample_group(session, tool, event, sample, | |
1000 | machine); | |
1001 | else | |
1002 | return deliver_sample_value(session, tool, event, sample, | |
1003 | &sample->read.one, machine); | |
1004 | } | |
1005 | ||
cbf41645 | 1006 | static int perf_session_deliver_event(struct perf_session *session, |
8115d60c | 1007 | union perf_event *event, |
8d50e5b4 | 1008 | struct perf_sample *sample, |
45694aa7 | 1009 | struct perf_tool *tool, |
532e7269 | 1010 | u64 file_offset) |
cbf41645 | 1011 | { |
9e69c210 | 1012 | struct perf_evsel *evsel; |
743eb868 | 1013 | struct machine *machine; |
9e69c210 | 1014 | |
532e7269 TG |
1015 | dump_event(session, event, file_offset, sample); |
1016 | ||
7b27509f ACM |
1017 | evsel = perf_evlist__id2evsel(session->evlist, sample->id); |
1018 | if (evsel != NULL && event->header.type != PERF_RECORD_SAMPLE) { | |
1019 | /* | |
1020 | * XXX We're leaving PERF_RECORD_SAMPLE unnacounted here | |
1021 | * because the tools right now may apply filters, discarding | |
1022 | * some of the samples. For consistency, in the future we | |
1023 | * should have something like nr_filtered_samples and remove | |
1024 | * the sample->period from total_sample_period, etc, KISS for | |
1025 | * now tho. | |
1026 | * | |
1027 | * Also testing against NULL allows us to handle files without | |
1028 | * attr.sample_id_all and/or without PERF_SAMPLE_ID. In the | |
1029 | * future probably it'll be a good idea to restrict event | |
1030 | * processing via perf_session to files with both set. | |
1031 | */ | |
1032 | hists__inc_nr_events(&evsel->hists, event->header.type); | |
1033 | } | |
1034 | ||
ef89325f AH |
1035 | machine = perf_session__find_machine_for_cpumode(session, event, |
1036 | sample); | |
743eb868 | 1037 | |
cbf41645 TG |
1038 | switch (event->header.type) { |
1039 | case PERF_RECORD_SAMPLE: | |
0f6a3015 | 1040 | dump_sample(evsel, event, sample); |
9e69c210 | 1041 | if (evsel == NULL) { |
28a6b6aa | 1042 | ++session->stats.nr_unknown_id; |
6782206b | 1043 | return 0; |
9e69c210 | 1044 | } |
0c095715 | 1045 | if (machine == NULL) { |
28a6b6aa | 1046 | ++session->stats.nr_unprocessable_samples; |
6782206b | 1047 | return 0; |
0c095715 | 1048 | } |
e4caec0d JO |
1049 | return perf_session__deliver_sample(session, tool, event, |
1050 | sample, evsel, machine); | |
cbf41645 | 1051 | case PERF_RECORD_MMAP: |
45694aa7 | 1052 | return tool->mmap(tool, event, sample, machine); |
5c5e854b SE |
1053 | case PERF_RECORD_MMAP2: |
1054 | return tool->mmap2(tool, event, sample, machine); | |
cbf41645 | 1055 | case PERF_RECORD_COMM: |
45694aa7 | 1056 | return tool->comm(tool, event, sample, machine); |
cbf41645 | 1057 | case PERF_RECORD_FORK: |
45694aa7 | 1058 | return tool->fork(tool, event, sample, machine); |
cbf41645 | 1059 | case PERF_RECORD_EXIT: |
45694aa7 | 1060 | return tool->exit(tool, event, sample, machine); |
cbf41645 | 1061 | case PERF_RECORD_LOST: |
45694aa7 | 1062 | if (tool->lost == perf_event__process_lost) |
28a6b6aa | 1063 | session->stats.total_lost += event->lost.lost; |
45694aa7 | 1064 | return tool->lost(tool, event, sample, machine); |
cbf41645 | 1065 | case PERF_RECORD_READ: |
45694aa7 | 1066 | return tool->read(tool, event, sample, evsel, machine); |
cbf41645 | 1067 | case PERF_RECORD_THROTTLE: |
45694aa7 | 1068 | return tool->throttle(tool, event, sample, machine); |
cbf41645 | 1069 | case PERF_RECORD_UNTHROTTLE: |
45694aa7 | 1070 | return tool->unthrottle(tool, event, sample, machine); |
cbf41645 | 1071 | default: |
28a6b6aa | 1072 | ++session->stats.nr_unknown_events; |
cbf41645 TG |
1073 | return -1; |
1074 | } | |
1075 | } | |
1076 | ||
d5652d86 AH |
1077 | static s64 perf_session__process_user_event(struct perf_session *session, |
1078 | union perf_event *event, | |
1079 | struct perf_tool *tool, | |
1080 | u64 file_offset) | |
06aae590 | 1081 | { |
cc9784bd | 1082 | int fd = perf_data_file__fd(session->file); |
10d0f086 ACM |
1083 | int err; |
1084 | ||
ba74f064 | 1085 | dump_event(session, event, file_offset, NULL); |
06aae590 | 1086 | |
cbf41645 | 1087 | /* These events are processed right away */ |
06aae590 | 1088 | switch (event->header.type) { |
2c46dbb5 | 1089 | case PERF_RECORD_HEADER_ATTR: |
47c3d109 | 1090 | err = tool->attr(tool, event, &session->evlist); |
10d0f086 | 1091 | if (err == 0) |
7b56cce2 | 1092 | perf_session__set_id_hdr_size(session); |
10d0f086 | 1093 | return err; |
f67697bd JO |
1094 | case PERF_RECORD_HEADER_EVENT_TYPE: |
1095 | /* | |
1096 | * Depreceated, but we need to handle it for sake | |
1097 | * of old data files create in pipe mode. | |
1098 | */ | |
1099 | return 0; | |
9215545e TZ |
1100 | case PERF_RECORD_HEADER_TRACING_DATA: |
1101 | /* setup for reading amidst mmap */ | |
cc9784bd | 1102 | lseek(fd, file_offset, SEEK_SET); |
47c3d109 | 1103 | return tool->tracing_data(tool, event, session); |
c7929e47 | 1104 | case PERF_RECORD_HEADER_BUILD_ID: |
45694aa7 | 1105 | return tool->build_id(tool, event, session); |
d6b17beb | 1106 | case PERF_RECORD_FINISHED_ROUND: |
45694aa7 | 1107 | return tool->finished_round(tool, event, session); |
06aae590 | 1108 | default: |
ba74f064 | 1109 | return -EINVAL; |
06aae590 | 1110 | } |
ba74f064 TG |
1111 | } |
1112 | ||
268fb20f JO |
1113 | static void event_swap(union perf_event *event, bool sample_id_all) |
1114 | { | |
1115 | perf_event__swap_op swap; | |
1116 | ||
1117 | swap = perf_event__swap_ops[event->header.type]; | |
1118 | if (swap) | |
1119 | swap(event, sample_id_all); | |
1120 | } | |
1121 | ||
d5652d86 | 1122 | static s64 perf_session__process_event(struct perf_session *session, |
e30b88a7 DA |
1123 | union perf_event *event, |
1124 | struct perf_tool *tool, | |
1125 | u64 file_offset) | |
ba74f064 | 1126 | { |
8d50e5b4 | 1127 | struct perf_sample sample; |
ba74f064 TG |
1128 | int ret; |
1129 | ||
268fb20f | 1130 | if (session->header.needs_swap) |
5e562474 | 1131 | event_swap(event, perf_evlist__sample_id_all(session->evlist)); |
ba74f064 TG |
1132 | |
1133 | if (event->header.type >= PERF_RECORD_HEADER_MAX) | |
1134 | return -EINVAL; | |
1135 | ||
28a6b6aa | 1136 | events_stats__inc(&session->stats, event->header.type); |
ba74f064 TG |
1137 | |
1138 | if (event->header.type >= PERF_RECORD_USER_TYPE_START) | |
45694aa7 | 1139 | return perf_session__process_user_event(session, event, tool, file_offset); |
cbf41645 | 1140 | |
3dfc2c0a TG |
1141 | /* |
1142 | * For all kernel events we get the sample data | |
1143 | */ | |
0807d2d8 | 1144 | ret = perf_evlist__parse_sample(session->evlist, event, &sample); |
5538beca FW |
1145 | if (ret) |
1146 | return ret; | |
3dfc2c0a | 1147 | |
0a8cb85c | 1148 | if (tool->ordered_events) { |
d40b4a15 | 1149 | ret = perf_session_queue_event(session, event, tool, &sample, |
e4c2df13 | 1150 | file_offset); |
cbf41645 TG |
1151 | if (ret != -ETIME) |
1152 | return ret; | |
1153 | } | |
1154 | ||
45694aa7 | 1155 | return perf_session_deliver_event(session, event, &sample, tool, |
f74725dc | 1156 | file_offset); |
06aae590 ACM |
1157 | } |
1158 | ||
316c7136 | 1159 | void perf_event_header__bswap(struct perf_event_header *hdr) |
ba21594c | 1160 | { |
316c7136 ACM |
1161 | hdr->type = bswap_32(hdr->type); |
1162 | hdr->misc = bswap_16(hdr->misc); | |
1163 | hdr->size = bswap_16(hdr->size); | |
ba21594c ACM |
1164 | } |
1165 | ||
b424eba2 ACM |
1166 | struct thread *perf_session__findnew(struct perf_session *session, pid_t pid) |
1167 | { | |
1fcb8768 | 1168 | return machine__findnew_thread(&session->machines.host, -1, pid); |
b424eba2 ACM |
1169 | } |
1170 | ||
316c7136 | 1171 | static struct thread *perf_session__register_idle_thread(struct perf_session *session) |
06aae590 | 1172 | { |
1fcb8768 | 1173 | struct thread *thread; |
06aae590 | 1174 | |
1fcb8768 | 1175 | thread = machine__findnew_thread(&session->machines.host, 0, 0); |
162f0bef | 1176 | if (thread == NULL || thread__set_comm(thread, "swapper", 0)) { |
06aae590 ACM |
1177 | pr_err("problem inserting idle task.\n"); |
1178 | thread = NULL; | |
1179 | } | |
1180 | ||
1181 | return thread; | |
1182 | } | |
1183 | ||
11095994 | 1184 | static void perf_session__warn_about_errors(const struct perf_session *session, |
45694aa7 | 1185 | const struct perf_tool *tool) |
11095994 | 1186 | { |
45694aa7 | 1187 | if (tool->lost == perf_event__process_lost && |
28a6b6aa | 1188 | session->stats.nr_events[PERF_RECORD_LOST] != 0) { |
7b27509f ACM |
1189 | ui__warning("Processed %d events and lost %d chunks!\n\n" |
1190 | "Check IO/CPU overload!\n\n", | |
28a6b6aa ACM |
1191 | session->stats.nr_events[0], |
1192 | session->stats.nr_events[PERF_RECORD_LOST]); | |
11095994 ACM |
1193 | } |
1194 | ||
28a6b6aa | 1195 | if (session->stats.nr_unknown_events != 0) { |
11095994 ACM |
1196 | ui__warning("Found %u unknown events!\n\n" |
1197 | "Is this an older tool processing a perf.data " | |
1198 | "file generated by a more recent tool?\n\n" | |
1199 | "If that is not the case, consider " | |
1200 | "reporting to linux-kernel@vger.kernel.org.\n\n", | |
28a6b6aa | 1201 | session->stats.nr_unknown_events); |
11095994 ACM |
1202 | } |
1203 | ||
28a6b6aa | 1204 | if (session->stats.nr_unknown_id != 0) { |
9e69c210 | 1205 | ui__warning("%u samples with id not present in the header\n", |
28a6b6aa | 1206 | session->stats.nr_unknown_id); |
9e69c210 ACM |
1207 | } |
1208 | ||
28a6b6aa | 1209 | if (session->stats.nr_invalid_chains != 0) { |
11095994 ACM |
1210 | ui__warning("Found invalid callchains!\n\n" |
1211 | "%u out of %u events were discarded for this reason.\n\n" | |
1212 | "Consider reporting to linux-kernel@vger.kernel.org.\n\n", | |
28a6b6aa ACM |
1213 | session->stats.nr_invalid_chains, |
1214 | session->stats.nr_events[PERF_RECORD_SAMPLE]); | |
11095994 | 1215 | } |
0c095715 | 1216 | |
28a6b6aa | 1217 | if (session->stats.nr_unprocessable_samples != 0) { |
0c095715 JR |
1218 | ui__warning("%u unprocessable samples recorded.\n" |
1219 | "Do you have a KVM guest running and not using 'perf kvm'?\n", | |
28a6b6aa | 1220 | session->stats.nr_unprocessable_samples); |
0c095715 | 1221 | } |
11095994 ACM |
1222 | } |
1223 | ||
8dc58101 TZ |
1224 | volatile int session_done; |
1225 | ||
316c7136 | 1226 | static int __perf_session__process_pipe_events(struct perf_session *session, |
45694aa7 | 1227 | struct perf_tool *tool) |
8dc58101 | 1228 | { |
316c7136 | 1229 | int fd = perf_data_file__fd(session->file); |
444d2866 SE |
1230 | union perf_event *event; |
1231 | uint32_t size, cur_size = 0; | |
1232 | void *buf = NULL; | |
d5652d86 | 1233 | s64 skip = 0; |
8dc58101 | 1234 | u64 head; |
727ebd54 | 1235 | ssize_t err; |
8dc58101 TZ |
1236 | void *p; |
1237 | ||
45694aa7 | 1238 | perf_tool__fill_defaults(tool); |
8dc58101 TZ |
1239 | |
1240 | head = 0; | |
444d2866 SE |
1241 | cur_size = sizeof(union perf_event); |
1242 | ||
1243 | buf = malloc(cur_size); | |
1244 | if (!buf) | |
1245 | return -errno; | |
8dc58101 | 1246 | more: |
444d2866 | 1247 | event = buf; |
cc9784bd | 1248 | err = readn(fd, event, sizeof(struct perf_event_header)); |
8dc58101 TZ |
1249 | if (err <= 0) { |
1250 | if (err == 0) | |
1251 | goto done; | |
1252 | ||
1253 | pr_err("failed to read event header\n"); | |
1254 | goto out_err; | |
1255 | } | |
1256 | ||
316c7136 | 1257 | if (session->header.needs_swap) |
444d2866 | 1258 | perf_event_header__bswap(&event->header); |
8dc58101 | 1259 | |
444d2866 | 1260 | size = event->header.size; |
27389d78 AH |
1261 | if (size < sizeof(struct perf_event_header)) { |
1262 | pr_err("bad event header size\n"); | |
1263 | goto out_err; | |
1264 | } | |
8dc58101 | 1265 | |
444d2866 SE |
1266 | if (size > cur_size) { |
1267 | void *new = realloc(buf, size); | |
1268 | if (!new) { | |
1269 | pr_err("failed to allocate memory to read event\n"); | |
1270 | goto out_err; | |
1271 | } | |
1272 | buf = new; | |
1273 | cur_size = size; | |
1274 | event = buf; | |
1275 | } | |
1276 | p = event; | |
8dc58101 TZ |
1277 | p += sizeof(struct perf_event_header); |
1278 | ||
794e43b5 | 1279 | if (size - sizeof(struct perf_event_header)) { |
cc9784bd | 1280 | err = readn(fd, p, size - sizeof(struct perf_event_header)); |
794e43b5 TZ |
1281 | if (err <= 0) { |
1282 | if (err == 0) { | |
1283 | pr_err("unexpected end of event stream\n"); | |
1284 | goto done; | |
1285 | } | |
8dc58101 | 1286 | |
794e43b5 TZ |
1287 | pr_err("failed to read event data\n"); |
1288 | goto out_err; | |
1289 | } | |
8dc58101 TZ |
1290 | } |
1291 | ||
316c7136 | 1292 | if ((skip = perf_session__process_event(session, event, tool, head)) < 0) { |
9389a460 | 1293 | pr_err("%#" PRIx64 " [%#x]: failed to process type: %d\n", |
444d2866 | 1294 | head, event->header.size, event->header.type); |
9389a460 JO |
1295 | err = -EINVAL; |
1296 | goto out_err; | |
8dc58101 TZ |
1297 | } |
1298 | ||
1299 | head += size; | |
1300 | ||
8dc58101 TZ |
1301 | if (skip > 0) |
1302 | head += skip; | |
1303 | ||
1304 | if (!session_done()) | |
1305 | goto more; | |
1306 | done: | |
8c16b649 | 1307 | /* do the final flush for ordered samples */ |
d8836b5d | 1308 | err = ordered_events__flush(session, tool, OE_FLUSH__FINAL); |
8dc58101 | 1309 | out_err: |
444d2866 | 1310 | free(buf); |
316c7136 ACM |
1311 | perf_session__warn_about_errors(session, tool); |
1312 | perf_session_free_sample_buffers(session); | |
8dc58101 TZ |
1313 | return err; |
1314 | } | |
1315 | ||
998bedc8 FW |
1316 | static union perf_event * |
1317 | fetch_mmaped_event(struct perf_session *session, | |
1318 | u64 head, size_t mmap_size, char *buf) | |
1319 | { | |
1320 | union perf_event *event; | |
1321 | ||
1322 | /* | |
1323 | * Ensure we have enough space remaining to read | |
1324 | * the size of the event in the headers. | |
1325 | */ | |
1326 | if (head + sizeof(event->header) > mmap_size) | |
1327 | return NULL; | |
1328 | ||
1329 | event = (union perf_event *)(buf + head); | |
1330 | ||
1331 | if (session->header.needs_swap) | |
1332 | perf_event_header__bswap(&event->header); | |
1333 | ||
27389d78 AH |
1334 | if (head + event->header.size > mmap_size) { |
1335 | /* We're not fetching the event so swap back again */ | |
1336 | if (session->header.needs_swap) | |
1337 | perf_event_header__bswap(&event->header); | |
998bedc8 | 1338 | return NULL; |
27389d78 | 1339 | } |
998bedc8 FW |
1340 | |
1341 | return event; | |
1342 | } | |
1343 | ||
35d48ddf DM |
1344 | /* |
1345 | * On 64bit we can mmap the data file in one go. No need for tiny mmap | |
1346 | * slices. On 32bit we use 32MB. | |
1347 | */ | |
1348 | #if BITS_PER_LONG == 64 | |
1349 | #define MMAP_SIZE ULLONG_MAX | |
1350 | #define NUM_MMAPS 1 | |
1351 | #else | |
1352 | #define MMAP_SIZE (32 * 1024 * 1024ULL) | |
1353 | #define NUM_MMAPS 128 | |
1354 | #endif | |
1355 | ||
0331ee0c | 1356 | int __perf_session__process_events(struct perf_session *session, |
6122e4e4 | 1357 | u64 data_offset, u64 data_size, |
45694aa7 | 1358 | u64 file_size, struct perf_tool *tool) |
06aae590 | 1359 | { |
cc9784bd | 1360 | int fd = perf_data_file__fd(session->file); |
d5652d86 | 1361 | u64 head, page_offset, file_offset, file_pos, size; |
fe174207 | 1362 | int err, mmap_prot, mmap_flags, map_idx = 0; |
0c1fe6b2 | 1363 | size_t mmap_size; |
35d48ddf | 1364 | char *buf, *mmaps[NUM_MMAPS]; |
8115d60c | 1365 | union perf_event *event; |
4d3001fd | 1366 | struct ui_progress prog; |
d5652d86 | 1367 | s64 skip; |
0331ee0c | 1368 | |
45694aa7 | 1369 | perf_tool__fill_defaults(tool); |
06aae590 | 1370 | |
0331ee0c TG |
1371 | page_offset = page_size * (data_offset / page_size); |
1372 | file_offset = page_offset; | |
1373 | head = data_offset - page_offset; | |
06aae590 | 1374 | |
b314e5cf | 1375 | if (data_size && (data_offset + data_size < file_size)) |
d6513281 TG |
1376 | file_size = data_offset + data_size; |
1377 | ||
4d3001fd | 1378 | ui_progress__init(&prog, file_size, "Processing events..."); |
55b44629 | 1379 | |
35d48ddf | 1380 | mmap_size = MMAP_SIZE; |
919d86d3 | 1381 | if (mmap_size > file_size) { |
55b44629 | 1382 | mmap_size = file_size; |
919d86d3 AH |
1383 | session->one_mmap = true; |
1384 | } | |
55b44629 | 1385 | |
fe174207 TG |
1386 | memset(mmaps, 0, sizeof(mmaps)); |
1387 | ||
ba21594c ACM |
1388 | mmap_prot = PROT_READ; |
1389 | mmap_flags = MAP_SHARED; | |
1390 | ||
0331ee0c | 1391 | if (session->header.needs_swap) { |
ba21594c ACM |
1392 | mmap_prot |= PROT_WRITE; |
1393 | mmap_flags = MAP_PRIVATE; | |
1394 | } | |
06aae590 | 1395 | remap: |
cc9784bd | 1396 | buf = mmap(NULL, mmap_size, mmap_prot, mmap_flags, fd, |
55b44629 | 1397 | file_offset); |
06aae590 ACM |
1398 | if (buf == MAP_FAILED) { |
1399 | pr_err("failed to mmap file\n"); | |
1400 | err = -errno; | |
1401 | goto out_err; | |
1402 | } | |
fe174207 TG |
1403 | mmaps[map_idx] = buf; |
1404 | map_idx = (map_idx + 1) & (ARRAY_SIZE(mmaps) - 1); | |
d6513281 | 1405 | file_pos = file_offset + head; |
919d86d3 AH |
1406 | if (session->one_mmap) { |
1407 | session->one_mmap_addr = buf; | |
1408 | session->one_mmap_offset = file_offset; | |
1409 | } | |
06aae590 ACM |
1410 | |
1411 | more: | |
998bedc8 FW |
1412 | event = fetch_mmaped_event(session, head, mmap_size, buf); |
1413 | if (!event) { | |
fe174207 TG |
1414 | if (mmaps[map_idx]) { |
1415 | munmap(mmaps[map_idx], mmap_size); | |
1416 | mmaps[map_idx] = NULL; | |
1417 | } | |
06aae590 | 1418 | |
0331ee0c TG |
1419 | page_offset = page_size * (head / page_size); |
1420 | file_offset += page_offset; | |
1421 | head -= page_offset; | |
06aae590 ACM |
1422 | goto remap; |
1423 | } | |
1424 | ||
1425 | size = event->header.size; | |
1426 | ||
27389d78 | 1427 | if (size < sizeof(struct perf_event_header) || |
6f917c70 AH |
1428 | (skip = perf_session__process_event(session, event, tool, file_pos)) |
1429 | < 0) { | |
9389a460 JO |
1430 | pr_err("%#" PRIx64 " [%#x]: failed to process type: %d\n", |
1431 | file_offset + head, event->header.size, | |
1432 | event->header.type); | |
1433 | err = -EINVAL; | |
1434 | goto out_err; | |
06aae590 ACM |
1435 | } |
1436 | ||
6f917c70 AH |
1437 | if (skip) |
1438 | size += skip; | |
1439 | ||
06aae590 | 1440 | head += size; |
d6513281 | 1441 | file_pos += size; |
06aae590 | 1442 | |
4d3001fd | 1443 | ui_progress__update(&prog, size); |
55b44629 | 1444 | |
33e940a2 | 1445 | if (session_done()) |
8c16b649 | 1446 | goto out; |
33e940a2 | 1447 | |
d6513281 | 1448 | if (file_pos < file_size) |
06aae590 | 1449 | goto more; |
d6513281 | 1450 | |
8c16b649 | 1451 | out: |
c61e52ee | 1452 | /* do the final flush for ordered samples */ |
d8836b5d | 1453 | err = ordered_events__flush(session, tool, OE_FLUSH__FINAL); |
06aae590 | 1454 | out_err: |
a5580f3e | 1455 | ui_progress__finish(); |
45694aa7 | 1456 | perf_session__warn_about_errors(session, tool); |
020bb75a | 1457 | perf_session_free_sample_buffers(session); |
919d86d3 | 1458 | session->one_mmap = false; |
06aae590 ACM |
1459 | return err; |
1460 | } | |
27295592 | 1461 | |
316c7136 | 1462 | int perf_session__process_events(struct perf_session *session, |
45694aa7 | 1463 | struct perf_tool *tool) |
6122e4e4 | 1464 | { |
316c7136 | 1465 | u64 size = perf_data_file__size(session->file); |
6122e4e4 ACM |
1466 | int err; |
1467 | ||
316c7136 | 1468 | if (perf_session__register_idle_thread(session) == NULL) |
6122e4e4 ACM |
1469 | return -ENOMEM; |
1470 | ||
316c7136 ACM |
1471 | if (!perf_data_file__is_pipe(session->file)) |
1472 | err = __perf_session__process_events(session, | |
1473 | session->header.data_offset, | |
1474 | session->header.data_size, | |
cc9784bd | 1475 | size, tool); |
8dc58101 | 1476 | else |
316c7136 | 1477 | err = __perf_session__process_pipe_events(session, tool); |
88ca895d | 1478 | |
6122e4e4 ACM |
1479 | return err; |
1480 | } | |
1481 | ||
7f3be652 | 1482 | bool perf_session__has_traces(struct perf_session *session, const char *msg) |
27295592 | 1483 | { |
93ea01c2 DA |
1484 | struct perf_evsel *evsel; |
1485 | ||
0050f7aa | 1486 | evlist__for_each(session->evlist, evsel) { |
93ea01c2 DA |
1487 | if (evsel->attr.type == PERF_TYPE_TRACEPOINT) |
1488 | return true; | |
27295592 ACM |
1489 | } |
1490 | ||
93ea01c2 DA |
1491 | pr_err("No trace sample to read. Did you call 'perf %s'?\n", msg); |
1492 | return false; | |
27295592 | 1493 | } |
56b03f3c | 1494 | |
743eb868 ACM |
1495 | int maps__set_kallsyms_ref_reloc_sym(struct map **maps, |
1496 | const char *symbol_name, u64 addr) | |
56b03f3c ACM |
1497 | { |
1498 | char *bracket; | |
9de89fe7 | 1499 | enum map_type i; |
a1645ce1 ZY |
1500 | struct ref_reloc_sym *ref; |
1501 | ||
1502 | ref = zalloc(sizeof(struct ref_reloc_sym)); | |
1503 | if (ref == NULL) | |
1504 | return -ENOMEM; | |
56b03f3c | 1505 | |
a1645ce1 ZY |
1506 | ref->name = strdup(symbol_name); |
1507 | if (ref->name == NULL) { | |
1508 | free(ref); | |
56b03f3c | 1509 | return -ENOMEM; |
a1645ce1 | 1510 | } |
56b03f3c | 1511 | |
a1645ce1 | 1512 | bracket = strchr(ref->name, ']'); |
56b03f3c ACM |
1513 | if (bracket) |
1514 | *bracket = '\0'; | |
1515 | ||
a1645ce1 | 1516 | ref->addr = addr; |
9de89fe7 ACM |
1517 | |
1518 | for (i = 0; i < MAP__NR_TYPES; ++i) { | |
a1645ce1 ZY |
1519 | struct kmap *kmap = map__kmap(maps[i]); |
1520 | kmap->ref_reloc_sym = ref; | |
9de89fe7 ACM |
1521 | } |
1522 | ||
56b03f3c ACM |
1523 | return 0; |
1524 | } | |
1f626bc3 | 1525 | |
316c7136 | 1526 | size_t perf_session__fprintf_dsos(struct perf_session *session, FILE *fp) |
1f626bc3 | 1527 | { |
316c7136 | 1528 | return machines__fprintf_dsos(&session->machines, fp); |
1f626bc3 | 1529 | } |
f869097e | 1530 | |
316c7136 | 1531 | size_t perf_session__fprintf_dsos_buildid(struct perf_session *session, FILE *fp, |
417c2ff6 | 1532 | bool (skip)(struct dso *dso, int parm), int parm) |
f869097e | 1533 | { |
316c7136 | 1534 | return machines__fprintf_dsos_buildid(&session->machines, fp, skip, parm); |
f869097e | 1535 | } |
e248de33 ACM |
1536 | |
1537 | size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp) | |
1538 | { | |
1539 | struct perf_evsel *pos; | |
1540 | size_t ret = fprintf(fp, "Aggregated stats:\n"); | |
1541 | ||
28a6b6aa | 1542 | ret += events_stats__fprintf(&session->stats, fp); |
e248de33 | 1543 | |
0050f7aa | 1544 | evlist__for_each(session->evlist, pos) { |
7289f83c | 1545 | ret += fprintf(fp, "%s stats:\n", perf_evsel__name(pos)); |
52168eea | 1546 | ret += events_stats__fprintf(&pos->hists.stats, fp); |
e248de33 ACM |
1547 | } |
1548 | ||
1549 | return ret; | |
1550 | } | |
c0230b2b | 1551 | |
b424eba2 ACM |
1552 | size_t perf_session__fprintf(struct perf_session *session, FILE *fp) |
1553 | { | |
1554 | /* | |
1555 | * FIXME: Here we have to actually print all the machines in this | |
1556 | * session, not just the host... | |
1557 | */ | |
876650e6 | 1558 | return machine__fprintf(&session->machines.host, fp); |
b424eba2 ACM |
1559 | } |
1560 | ||
9cbdb702 DA |
1561 | struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session, |
1562 | unsigned int type) | |
1563 | { | |
1564 | struct perf_evsel *pos; | |
1565 | ||
0050f7aa | 1566 | evlist__for_each(session->evlist, pos) { |
9cbdb702 DA |
1567 | if (pos->attr.type == type) |
1568 | return pos; | |
1569 | } | |
1570 | return NULL; | |
1571 | } | |
1572 | ||
a2cb3cf2 | 1573 | void perf_evsel__print_ip(struct perf_evsel *evsel, struct perf_sample *sample, |
cc22e575 | 1574 | struct addr_location *al, |
307cbb92 | 1575 | unsigned int print_opts, unsigned int stack_depth) |
c0230b2b | 1576 | { |
c0230b2b | 1577 | struct callchain_cursor_node *node; |
a6ffaf91 DA |
1578 | int print_ip = print_opts & PRINT_IP_OPT_IP; |
1579 | int print_sym = print_opts & PRINT_IP_OPT_SYM; | |
1580 | int print_dso = print_opts & PRINT_IP_OPT_DSO; | |
1581 | int print_symoffset = print_opts & PRINT_IP_OPT_SYMOFFSET; | |
b0b35f01 | 1582 | int print_oneline = print_opts & PRINT_IP_OPT_ONELINE; |
cc8fae1d | 1583 | int print_srcline = print_opts & PRINT_IP_OPT_SRCLINE; |
b0b35f01 | 1584 | char s = print_oneline ? ' ' : '\t'; |
c0230b2b | 1585 | |
c0230b2b | 1586 | if (symbol_conf.use_callchain && sample->callchain) { |
a2cb3cf2 | 1587 | struct addr_location node_al; |
c0230b2b | 1588 | |
cc22e575 | 1589 | if (machine__resolve_callchain(al->machine, evsel, al->thread, |
91e95617 WL |
1590 | sample, NULL, NULL, |
1591 | PERF_MAX_STACK_DEPTH) != 0) { | |
c0230b2b DA |
1592 | if (verbose) |
1593 | error("Failed to resolve callchain. Skipping\n"); | |
1594 | return; | |
1595 | } | |
47260645 | 1596 | callchain_cursor_commit(&callchain_cursor); |
c0230b2b | 1597 | |
a2cb3cf2 AH |
1598 | if (print_symoffset) |
1599 | node_al = *al; | |
1600 | ||
307cbb92 | 1601 | while (stack_depth) { |
a4eb24a4 AH |
1602 | u64 addr = 0; |
1603 | ||
47260645 | 1604 | node = callchain_cursor_current(&callchain_cursor); |
c0230b2b DA |
1605 | if (!node) |
1606 | break; | |
1607 | ||
d2ff1b14 DA |
1608 | if (node->sym && node->sym->ignore) |
1609 | goto next; | |
1610 | ||
a6ffaf91 | 1611 | if (print_ip) |
b0b35f01 | 1612 | printf("%c%16" PRIx64, s, node->ip); |
a6ffaf91 | 1613 | |
a4eb24a4 AH |
1614 | if (node->map) |
1615 | addr = node->map->map_ip(node->map, node->ip); | |
1616 | ||
787bef17 | 1617 | if (print_sym) { |
547a92e0 | 1618 | printf(" "); |
251f426f | 1619 | if (print_symoffset) { |
a4eb24a4 | 1620 | node_al.addr = addr; |
a2cb3cf2 AH |
1621 | node_al.map = node->map; |
1622 | symbol__fprintf_symname_offs(node->sym, &node_al, stdout); | |
251f426f DA |
1623 | } else |
1624 | symbol__fprintf_symname(node->sym, stdout); | |
610723f2 | 1625 | } |
251f426f | 1626 | |
610723f2 | 1627 | if (print_dso) { |
547a92e0 | 1628 | printf(" ("); |
52deff71 | 1629 | map__fprintf_dsoname(node->map, stdout); |
547a92e0 | 1630 | printf(")"); |
787bef17 | 1631 | } |
b0b35f01 | 1632 | |
cc8fae1d AH |
1633 | if (print_srcline) |
1634 | map__fprintf_srcline(node->map, addr, "\n ", | |
1635 | stdout); | |
1636 | ||
b0b35f01 DA |
1637 | if (!print_oneline) |
1638 | printf("\n"); | |
c0230b2b | 1639 | |
307cbb92 | 1640 | stack_depth--; |
d2ff1b14 DA |
1641 | next: |
1642 | callchain_cursor_advance(&callchain_cursor); | |
c0230b2b DA |
1643 | } |
1644 | ||
1645 | } else { | |
a2cb3cf2 | 1646 | if (al->sym && al->sym->ignore) |
d2ff1b14 DA |
1647 | return; |
1648 | ||
a6ffaf91 DA |
1649 | if (print_ip) |
1650 | printf("%16" PRIx64, sample->ip); | |
1651 | ||
787bef17 | 1652 | if (print_sym) { |
547a92e0 | 1653 | printf(" "); |
a978f2ab | 1654 | if (print_symoffset) |
a2cb3cf2 | 1655 | symbol__fprintf_symname_offs(al->sym, al, |
a978f2ab AN |
1656 | stdout); |
1657 | else | |
a2cb3cf2 | 1658 | symbol__fprintf_symname(al->sym, stdout); |
610723f2 DA |
1659 | } |
1660 | ||
1661 | if (print_dso) { | |
547a92e0 | 1662 | printf(" ("); |
a2cb3cf2 | 1663 | map__fprintf_dsoname(al->map, stdout); |
547a92e0 | 1664 | printf(")"); |
787bef17 | 1665 | } |
cc8fae1d AH |
1666 | |
1667 | if (print_srcline) | |
1668 | map__fprintf_srcline(al->map, al->addr, "\n ", stdout); | |
c0230b2b DA |
1669 | } |
1670 | } | |
5d67be97 AB |
1671 | |
1672 | int perf_session__cpu_bitmap(struct perf_session *session, | |
1673 | const char *cpu_list, unsigned long *cpu_bitmap) | |
1674 | { | |
8bac41cb | 1675 | int i, err = -1; |
5d67be97 AB |
1676 | struct cpu_map *map; |
1677 | ||
1678 | for (i = 0; i < PERF_TYPE_MAX; ++i) { | |
1679 | struct perf_evsel *evsel; | |
1680 | ||
1681 | evsel = perf_session__find_first_evtype(session, i); | |
1682 | if (!evsel) | |
1683 | continue; | |
1684 | ||
1685 | if (!(evsel->attr.sample_type & PERF_SAMPLE_CPU)) { | |
1686 | pr_err("File does not contain CPU events. " | |
1687 | "Remove -c option to proceed.\n"); | |
1688 | return -1; | |
1689 | } | |
1690 | } | |
1691 | ||
1692 | map = cpu_map__new(cpu_list); | |
47fbe53b DA |
1693 | if (map == NULL) { |
1694 | pr_err("Invalid cpu_list\n"); | |
1695 | return -1; | |
1696 | } | |
5d67be97 AB |
1697 | |
1698 | for (i = 0; i < map->nr; i++) { | |
1699 | int cpu = map->map[i]; | |
1700 | ||
1701 | if (cpu >= MAX_NR_CPUS) { | |
1702 | pr_err("Requested CPU %d too large. " | |
1703 | "Consider raising MAX_NR_CPUS\n", cpu); | |
8bac41cb | 1704 | goto out_delete_map; |
5d67be97 AB |
1705 | } |
1706 | ||
1707 | set_bit(cpu, cpu_bitmap); | |
1708 | } | |
1709 | ||
8bac41cb SF |
1710 | err = 0; |
1711 | ||
1712 | out_delete_map: | |
1713 | cpu_map__delete(map); | |
1714 | return err; | |
5d67be97 | 1715 | } |
fbe96f29 SE |
1716 | |
1717 | void perf_session__fprintf_info(struct perf_session *session, FILE *fp, | |
1718 | bool full) | |
1719 | { | |
1720 | struct stat st; | |
c5765ece | 1721 | int fd, ret; |
fbe96f29 SE |
1722 | |
1723 | if (session == NULL || fp == NULL) | |
1724 | return; | |
1725 | ||
c5765ece MI |
1726 | fd = perf_data_file__fd(session->file); |
1727 | ||
cc9784bd | 1728 | ret = fstat(fd, &st); |
fbe96f29 SE |
1729 | if (ret == -1) |
1730 | return; | |
1731 | ||
1732 | fprintf(fp, "# ========\n"); | |
1733 | fprintf(fp, "# captured on: %s", ctime(&st.st_ctime)); | |
1734 | perf_header__fprintf_info(session, fp, full); | |
1735 | fprintf(fp, "# ========\n#\n"); | |
1736 | } | |
da378962 ACM |
1737 | |
1738 | ||
1739 | int __perf_session__set_tracepoints_handlers(struct perf_session *session, | |
1740 | const struct perf_evsel_str_handler *assocs, | |
1741 | size_t nr_assocs) | |
1742 | { | |
da378962 | 1743 | struct perf_evsel *evsel; |
da378962 ACM |
1744 | size_t i; |
1745 | int err; | |
1746 | ||
1747 | for (i = 0; i < nr_assocs; i++) { | |
ccf53eac ACM |
1748 | /* |
1749 | * Adding a handler for an event not in the session, | |
1750 | * just ignore it. | |
1751 | */ | |
1752 | evsel = perf_evlist__find_tracepoint_by_name(session->evlist, assocs[i].name); | |
da378962 | 1753 | if (evsel == NULL) |
ccf53eac | 1754 | continue; |
da378962 ACM |
1755 | |
1756 | err = -EEXIST; | |
744a9719 | 1757 | if (evsel->handler != NULL) |
ccf53eac | 1758 | goto out; |
744a9719 | 1759 | evsel->handler = assocs[i].handler; |
da378962 ACM |
1760 | } |
1761 | ||
1762 | err = 0; | |
1763 | out: | |
1764 | return err; | |
da378962 | 1765 | } |