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b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
a43783ae | 2 | #include <errno.h> |
fd20e811 | 3 | #include <inttypes.h> |
57fc032a | 4 | #include <linux/err.h> |
94c744b6 | 5 | #include <linux/kernel.h> |
7f7c536f | 6 | #include <linux/zalloc.h> |
4e319027 | 7 | #include <traceevent/event-parse.h> |
05a1f47e | 8 | #include <api/fs/fs.h> |
94c744b6 | 9 | |
ba21594c | 10 | #include <byteswap.h> |
94c744b6 ACM |
11 | #include <unistd.h> |
12 | #include <sys/types.h> | |
a41794cd | 13 | #include <sys/mman.h> |
9c3516d1 | 14 | #include <perf/cpumap.h> |
94c744b6 | 15 | |
e248de33 ACM |
16 | #include "evlist.h" |
17 | #include "evsel.h" | |
98521b38 | 18 | #include "memswap.h" |
1101f69a | 19 | #include "map.h" |
daecf9e0 | 20 | #include "symbol.h" |
94c744b6 | 21 | #include "session.h" |
45694aa7 | 22 | #include "tool.h" |
a328626b | 23 | #include "sort.h" |
5d67be97 | 24 | #include "cpumap.h" |
0f6a3015 | 25 | #include "perf_regs.h" |
b0a45203 | 26 | #include "asm/bug.h" |
c446870d | 27 | #include "auxtrace.h" |
e7ff8920 | 28 | #include "thread.h" |
a5499b37 | 29 | #include "thread-stack.h" |
93115d32 | 30 | #include "sample-raw.h" |
2d2aea6a | 31 | #include "stat.h" |
2da39f1c | 32 | #include "util.h" |
ec1891af | 33 | #include "arch/common.h" |
94c744b6 | 34 | |
cb62c6f1 AB |
35 | #ifdef HAVE_ZSTD_SUPPORT |
36 | static int perf_session__process_compressed_event(struct perf_session *session, | |
37 | union perf_event *event, u64 file_offset) | |
38 | { | |
39 | void *src; | |
40 | size_t decomp_size, src_size; | |
41 | u64 decomp_last_rem = 0; | |
872c8ee8 | 42 | size_t mmap_len, decomp_len = session->header.env.comp_mmap_len; |
cb62c6f1 AB |
43 | struct decomp *decomp, *decomp_last = session->decomp_last; |
44 | ||
872c8ee8 AB |
45 | if (decomp_last) { |
46 | decomp_last_rem = decomp_last->size - decomp_last->head; | |
47 | decomp_len += decomp_last_rem; | |
48 | } | |
49 | ||
50 | mmap_len = sizeof(struct decomp) + decomp_len; | |
51 | decomp = mmap(NULL, mmap_len, PROT_READ|PROT_WRITE, | |
cb62c6f1 AB |
52 | MAP_ANONYMOUS|MAP_PRIVATE, -1, 0); |
53 | if (decomp == MAP_FAILED) { | |
54 | pr_err("Couldn't allocate memory for decompression\n"); | |
55 | return -1; | |
56 | } | |
57 | ||
58 | decomp->file_pos = file_offset; | |
872c8ee8 | 59 | decomp->mmap_len = mmap_len; |
cb62c6f1 AB |
60 | decomp->head = 0; |
61 | ||
872c8ee8 | 62 | if (decomp_last_rem) { |
cb62c6f1 AB |
63 | memcpy(decomp->data, &(decomp_last->data[decomp_last->head]), decomp_last_rem); |
64 | decomp->size = decomp_last_rem; | |
65 | } | |
66 | ||
67 | src = (void *)event + sizeof(struct compressed_event); | |
68 | src_size = event->pack.header.size - sizeof(struct compressed_event); | |
69 | ||
70 | decomp_size = zstd_decompress_stream(&(session->zstd_data), src, src_size, | |
71 | &(decomp->data[decomp_last_rem]), decomp_len - decomp_last_rem); | |
72 | if (!decomp_size) { | |
872c8ee8 | 73 | munmap(decomp, mmap_len); |
cb62c6f1 AB |
74 | pr_err("Couldn't decompress data\n"); |
75 | return -1; | |
76 | } | |
77 | ||
78 | decomp->size += decomp_size; | |
79 | ||
80 | if (session->decomp == NULL) { | |
81 | session->decomp = decomp; | |
82 | session->decomp_last = decomp; | |
83 | } else { | |
84 | session->decomp_last->next = decomp; | |
85 | session->decomp_last = decomp; | |
86 | } | |
87 | ||
88 | pr_debug("decomp (B): %ld to %ld\n", src_size, decomp_size); | |
89 | ||
90 | return 0; | |
91 | } | |
92 | #else /* !HAVE_ZSTD_SUPPORT */ | |
93 | #define perf_session__process_compressed_event perf_session__process_compressed_event_stub | |
94 | #endif | |
95 | ||
c446870d AH |
96 | static int perf_session__deliver_event(struct perf_session *session, |
97 | union perf_event *event, | |
c446870d AH |
98 | struct perf_tool *tool, |
99 | u64 file_offset); | |
d10eb1eb | 100 | |
316c7136 | 101 | static int perf_session__open(struct perf_session *session) |
94c744b6 | 102 | { |
8ceb41d7 | 103 | struct perf_data *data = session->data; |
8dc58101 | 104 | |
316c7136 | 105 | if (perf_session__read_header(session) < 0) { |
e87b4911 | 106 | pr_err("incompatible file format (rerun with -v to learn more)\n"); |
6a4d98d7 | 107 | return -1; |
94c744b6 ACM |
108 | } |
109 | ||
8ceb41d7 | 110 | if (perf_data__is_pipe(data)) |
cc9784bd JO |
111 | return 0; |
112 | ||
3ba78bd0 JO |
113 | if (perf_header__has_feat(&session->header, HEADER_STAT)) |
114 | return 0; | |
115 | ||
316c7136 | 116 | if (!perf_evlist__valid_sample_type(session->evlist)) { |
e87b4911 | 117 | pr_err("non matching sample_type\n"); |
6a4d98d7 | 118 | return -1; |
c2a70653 ACM |
119 | } |
120 | ||
316c7136 | 121 | if (!perf_evlist__valid_sample_id_all(session->evlist)) { |
e87b4911 | 122 | pr_err("non matching sample_id_all\n"); |
6a4d98d7 | 123 | return -1; |
c2a70653 ACM |
124 | } |
125 | ||
316c7136 | 126 | if (!perf_evlist__valid_read_format(session->evlist)) { |
e87b4911 | 127 | pr_err("non matching read_format\n"); |
6a4d98d7 | 128 | return -1; |
9ede473c JO |
129 | } |
130 | ||
94c744b6 | 131 | return 0; |
94c744b6 ACM |
132 | } |
133 | ||
7b56cce2 | 134 | void perf_session__set_id_hdr_size(struct perf_session *session) |
9c90a61c | 135 | { |
7b56cce2 ACM |
136 | u16 id_hdr_size = perf_evlist__id_hdr_size(session->evlist); |
137 | ||
7b56cce2 | 138 | machines__set_id_hdr_size(&session->machines, id_hdr_size); |
9c90a61c ACM |
139 | } |
140 | ||
316c7136 | 141 | int perf_session__create_kernel_maps(struct perf_session *session) |
a1645ce1 | 142 | { |
316c7136 | 143 | int ret = machine__create_kernel_maps(&session->machines.host); |
a1645ce1 | 144 | |
a1645ce1 | 145 | if (ret >= 0) |
316c7136 | 146 | ret = machines__create_guest_kernel_maps(&session->machines); |
a1645ce1 ZY |
147 | return ret; |
148 | } | |
149 | ||
316c7136 | 150 | static void perf_session__destroy_kernel_maps(struct perf_session *session) |
076c6e45 | 151 | { |
316c7136 | 152 | machines__destroy_kernel_maps(&session->machines); |
076c6e45 ACM |
153 | } |
154 | ||
cfe1c414 AH |
155 | static bool perf_session__has_comm_exec(struct perf_session *session) |
156 | { | |
32dcd021 | 157 | struct evsel *evsel; |
cfe1c414 | 158 | |
e5cadb93 | 159 | evlist__for_each_entry(session->evlist, evsel) { |
1fc632ce | 160 | if (evsel->core.attr.comm_exec) |
cfe1c414 AH |
161 | return true; |
162 | } | |
163 | ||
164 | return false; | |
165 | } | |
166 | ||
167 | static void perf_session__set_comm_exec(struct perf_session *session) | |
168 | { | |
169 | bool comm_exec = perf_session__has_comm_exec(session); | |
170 | ||
171 | machines__set_comm_exec(&session->machines, comm_exec); | |
172 | } | |
173 | ||
d10eb1eb | 174 | static int ordered_events__deliver_event(struct ordered_events *oe, |
9870d780 | 175 | struct ordered_event *event) |
d10eb1eb | 176 | { |
9870d780 ACM |
177 | struct perf_session *session = container_of(oe, struct perf_session, |
178 | ordered_events); | |
9870d780 | 179 | |
93d10af2 | 180 | return perf_session__deliver_event(session, event->event, |
c446870d | 181 | session->tool, event->file_offset); |
d10eb1eb ACM |
182 | } |
183 | ||
8ceb41d7 | 184 | struct perf_session *perf_session__new(struct perf_data *data, |
f5fc1412 | 185 | bool repipe, struct perf_tool *tool) |
94c744b6 | 186 | { |
316c7136 | 187 | struct perf_session *session = zalloc(sizeof(*session)); |
efad1415 | 188 | |
316c7136 | 189 | if (!session) |
94c744b6 ACM |
190 | goto out; |
191 | ||
316c7136 | 192 | session->repipe = repipe; |
9870d780 | 193 | session->tool = tool; |
99fa2984 | 194 | INIT_LIST_HEAD(&session->auxtrace_index); |
316c7136 | 195 | machines__init(&session->machines); |
a4a6668a JO |
196 | ordered_events__init(&session->ordered_events, |
197 | ordered_events__deliver_event, NULL); | |
94c744b6 | 198 | |
e4378f0c | 199 | perf_env__init(&session->header.env); |
8ceb41d7 JO |
200 | if (data) { |
201 | if (perf_data__open(data)) | |
64abebf7 | 202 | goto out_delete; |
6a4d98d7 | 203 | |
8ceb41d7 | 204 | session->data = data; |
6a4d98d7 | 205 | |
8ceb41d7 | 206 | if (perf_data__is_read(data)) { |
316c7136 | 207 | if (perf_session__open(session) < 0) |
befa09b6 | 208 | goto out_delete; |
6a4d98d7 | 209 | |
0973ad97 DCC |
210 | /* |
211 | * set session attributes that are present in perf.data | |
212 | * but not in pipe-mode. | |
213 | */ | |
8ceb41d7 | 214 | if (!data->is_pipe) { |
0973ad97 DCC |
215 | perf_session__set_id_hdr_size(session); |
216 | perf_session__set_comm_exec(session); | |
217 | } | |
93115d32 TR |
218 | |
219 | perf_evlist__init_trace_event_sample_raw(session->evlist); | |
ec65def1 JO |
220 | |
221 | /* Open the directory data. */ | |
222 | if (data->is_dir && perf_data__open_dir(data)) | |
223 | goto out_delete; | |
6a4d98d7 | 224 | } |
4cde998d ACM |
225 | } else { |
226 | session->machines.host.env = &perf_env; | |
6a4d98d7 JO |
227 | } |
228 | ||
ec1891af AH |
229 | session->machines.host.single_address_space = |
230 | perf_env__single_address_space(session->machines.host.env); | |
231 | ||
8ceb41d7 | 232 | if (!data || perf_data__is_write(data)) { |
64abebf7 ACM |
233 | /* |
234 | * In O_RDONLY mode this will be performed when reading the | |
8115d60c | 235 | * kernel MMAP event, in perf_event__process_mmap(). |
64abebf7 | 236 | */ |
316c7136 | 237 | if (perf_session__create_kernel_maps(session) < 0) |
a5c2a4c9 | 238 | pr_warning("Cannot read kernel map\n"); |
64abebf7 | 239 | } |
d549c769 | 240 | |
0973ad97 DCC |
241 | /* |
242 | * In pipe-mode, evlist is empty until PERF_RECORD_HEADER_ATTR is | |
243 | * processed, so perf_evlist__sample_id_all is not meaningful here. | |
244 | */ | |
8ceb41d7 | 245 | if ((!data || !data->is_pipe) && tool && tool->ordering_requires_timestamps && |
0a8cb85c | 246 | tool->ordered_events && !perf_evlist__sample_id_all(session->evlist)) { |
21ef97f0 | 247 | dump_printf("WARNING: No sample_id_all support, falling back to unordered processing\n"); |
0a8cb85c | 248 | tool->ordered_events = false; |
d10eb1eb | 249 | } |
21ef97f0 | 250 | |
316c7136 | 251 | return session; |
6a4d98d7 | 252 | |
6a4d98d7 | 253 | out_delete: |
316c7136 | 254 | perf_session__delete(session); |
6a4d98d7 | 255 | out: |
4aa65636 | 256 | return NULL; |
94c744b6 ACM |
257 | } |
258 | ||
b424eba2 ACM |
259 | static void perf_session__delete_threads(struct perf_session *session) |
260 | { | |
876650e6 | 261 | machine__delete_threads(&session->machines.host); |
b424eba2 ACM |
262 | } |
263 | ||
cb62c6f1 AB |
264 | static void perf_session__release_decomp_events(struct perf_session *session) |
265 | { | |
266 | struct decomp *next, *decomp; | |
872c8ee8 | 267 | size_t mmap_len; |
cb62c6f1 | 268 | next = session->decomp; |
cb62c6f1 AB |
269 | do { |
270 | decomp = next; | |
271 | if (decomp == NULL) | |
272 | break; | |
273 | next = decomp->next; | |
872c8ee8 AB |
274 | mmap_len = decomp->mmap_len; |
275 | munmap(decomp, mmap_len); | |
cb62c6f1 AB |
276 | } while (1); |
277 | } | |
278 | ||
316c7136 | 279 | void perf_session__delete(struct perf_session *session) |
94c744b6 | 280 | { |
e1446551 ACM |
281 | if (session == NULL) |
282 | return; | |
c446870d | 283 | auxtrace__free(session); |
99fa2984 | 284 | auxtrace_index__free(&session->auxtrace_index); |
316c7136 | 285 | perf_session__destroy_kernel_maps(session); |
316c7136 | 286 | perf_session__delete_threads(session); |
cb62c6f1 | 287 | perf_session__release_decomp_events(session); |
f0ce888c | 288 | perf_env__exit(&session->header.env); |
316c7136 | 289 | machines__exit(&session->machines); |
8ceb41d7 JO |
290 | if (session->data) |
291 | perf_data__close(session->data); | |
316c7136 | 292 | free(session); |
94c744b6 | 293 | } |
a328626b | 294 | |
89f1688a | 295 | static int process_event_synth_tracing_data_stub(struct perf_session *session |
47c3d109 AH |
296 | __maybe_unused, |
297 | union perf_event *event | |
89f1688a | 298 | __maybe_unused) |
d20deb64 ACM |
299 | { |
300 | dump_printf(": unhandled!\n"); | |
301 | return 0; | |
302 | } | |
303 | ||
47c3d109 AH |
304 | static int process_event_synth_attr_stub(struct perf_tool *tool __maybe_unused, |
305 | union perf_event *event __maybe_unused, | |
63503dba | 306 | struct evlist **pevlist |
1d037ca1 | 307 | __maybe_unused) |
10d0f086 ACM |
308 | { |
309 | dump_printf(": unhandled!\n"); | |
310 | return 0; | |
311 | } | |
312 | ||
ffe77725 JO |
313 | static int process_event_synth_event_update_stub(struct perf_tool *tool __maybe_unused, |
314 | union perf_event *event __maybe_unused, | |
63503dba | 315 | struct evlist **pevlist |
ffe77725 JO |
316 | __maybe_unused) |
317 | { | |
2d2aea6a JO |
318 | if (dump_trace) |
319 | perf_event__fprintf_event_update(event, stdout); | |
320 | ||
ffe77725 JO |
321 | dump_printf(": unhandled!\n"); |
322 | return 0; | |
323 | } | |
324 | ||
1d037ca1 IT |
325 | static int process_event_sample_stub(struct perf_tool *tool __maybe_unused, |
326 | union perf_event *event __maybe_unused, | |
327 | struct perf_sample *sample __maybe_unused, | |
32dcd021 | 328 | struct evsel *evsel __maybe_unused, |
1d037ca1 | 329 | struct machine *machine __maybe_unused) |
9e69c210 ACM |
330 | { |
331 | dump_printf(": unhandled!\n"); | |
332 | return 0; | |
333 | } | |
334 | ||
1d037ca1 IT |
335 | static int process_event_stub(struct perf_tool *tool __maybe_unused, |
336 | union perf_event *event __maybe_unused, | |
337 | struct perf_sample *sample __maybe_unused, | |
338 | struct machine *machine __maybe_unused) | |
06aae590 ACM |
339 | { |
340 | dump_printf(": unhandled!\n"); | |
341 | return 0; | |
342 | } | |
343 | ||
1d037ca1 IT |
344 | static int process_finished_round_stub(struct perf_tool *tool __maybe_unused, |
345 | union perf_event *event __maybe_unused, | |
d704ebda | 346 | struct ordered_events *oe __maybe_unused) |
743eb868 ACM |
347 | { |
348 | dump_printf(": unhandled!\n"); | |
349 | return 0; | |
350 | } | |
351 | ||
45694aa7 | 352 | static int process_finished_round(struct perf_tool *tool, |
d20deb64 | 353 | union perf_event *event, |
d704ebda | 354 | struct ordered_events *oe); |
d6b17beb | 355 | |
a16ac023 AH |
356 | static int skipn(int fd, off_t n) |
357 | { | |
358 | char buf[4096]; | |
359 | ssize_t ret; | |
360 | ||
361 | while (n > 0) { | |
362 | ret = read(fd, buf, min(n, (off_t)sizeof(buf))); | |
363 | if (ret <= 0) | |
364 | return ret; | |
365 | n -= ret; | |
366 | } | |
367 | ||
368 | return 0; | |
369 | } | |
370 | ||
7336555a JO |
371 | static s64 process_event_auxtrace_stub(struct perf_session *session __maybe_unused, |
372 | union perf_event *event) | |
a16ac023 AH |
373 | { |
374 | dump_printf(": unhandled!\n"); | |
8ceb41d7 JO |
375 | if (perf_data__is_pipe(session->data)) |
376 | skipn(perf_data__fd(session->data), event->auxtrace.size); | |
a16ac023 AH |
377 | return event->auxtrace.size; |
378 | } | |
379 | ||
89f1688a JO |
380 | static int process_event_op2_stub(struct perf_session *session __maybe_unused, |
381 | union perf_event *event __maybe_unused) | |
e9bf54d2 AH |
382 | { |
383 | dump_printf(": unhandled!\n"); | |
384 | return 0; | |
385 | } | |
386 | ||
5f3339d2 JO |
387 | |
388 | static | |
89f1688a JO |
389 | int process_event_thread_map_stub(struct perf_session *session __maybe_unused, |
390 | union perf_event *event __maybe_unused) | |
5f3339d2 | 391 | { |
2d2aea6a JO |
392 | if (dump_trace) |
393 | perf_event__fprintf_thread_map(event, stdout); | |
394 | ||
5f3339d2 JO |
395 | dump_printf(": unhandled!\n"); |
396 | return 0; | |
397 | } | |
398 | ||
6640b6c2 | 399 | static |
89f1688a JO |
400 | int process_event_cpu_map_stub(struct perf_session *session __maybe_unused, |
401 | union perf_event *event __maybe_unused) | |
6640b6c2 | 402 | { |
2d2aea6a JO |
403 | if (dump_trace) |
404 | perf_event__fprintf_cpu_map(event, stdout); | |
405 | ||
6640b6c2 JO |
406 | dump_printf(": unhandled!\n"); |
407 | return 0; | |
408 | } | |
409 | ||
374fb9e3 | 410 | static |
89f1688a JO |
411 | int process_event_stat_config_stub(struct perf_session *session __maybe_unused, |
412 | union perf_event *event __maybe_unused) | |
374fb9e3 | 413 | { |
2d2aea6a JO |
414 | if (dump_trace) |
415 | perf_event__fprintf_stat_config(event, stdout); | |
416 | ||
374fb9e3 JO |
417 | dump_printf(": unhandled!\n"); |
418 | return 0; | |
419 | } | |
420 | ||
89f1688a JO |
421 | static int process_stat_stub(struct perf_session *perf_session __maybe_unused, |
422 | union perf_event *event) | |
d80518c9 | 423 | { |
2d2aea6a JO |
424 | if (dump_trace) |
425 | perf_event__fprintf_stat(event, stdout); | |
426 | ||
d80518c9 JO |
427 | dump_printf(": unhandled!\n"); |
428 | return 0; | |
429 | } | |
430 | ||
89f1688a JO |
431 | static int process_stat_round_stub(struct perf_session *perf_session __maybe_unused, |
432 | union perf_event *event) | |
2d8f0f18 | 433 | { |
2d2aea6a JO |
434 | if (dump_trace) |
435 | perf_event__fprintf_stat_round(event, stdout); | |
436 | ||
2d8f0f18 JO |
437 | dump_printf(": unhandled!\n"); |
438 | return 0; | |
439 | } | |
440 | ||
61a7773c AB |
441 | static int perf_session__process_compressed_event_stub(struct perf_session *session __maybe_unused, |
442 | union perf_event *event __maybe_unused, | |
443 | u64 file_offset __maybe_unused) | |
444 | { | |
445 | dump_printf(": unhandled!\n"); | |
446 | return 0; | |
447 | } | |
448 | ||
9c501402 | 449 | void perf_tool__fill_defaults(struct perf_tool *tool) |
06aae590 | 450 | { |
45694aa7 ACM |
451 | if (tool->sample == NULL) |
452 | tool->sample = process_event_sample_stub; | |
453 | if (tool->mmap == NULL) | |
454 | tool->mmap = process_event_stub; | |
6adb0b0a DA |
455 | if (tool->mmap2 == NULL) |
456 | tool->mmap2 = process_event_stub; | |
45694aa7 ACM |
457 | if (tool->comm == NULL) |
458 | tool->comm = process_event_stub; | |
7f0cd236 NK |
459 | if (tool->namespaces == NULL) |
460 | tool->namespaces = process_event_stub; | |
45694aa7 ACM |
461 | if (tool->fork == NULL) |
462 | tool->fork = process_event_stub; | |
463 | if (tool->exit == NULL) | |
464 | tool->exit = process_event_stub; | |
465 | if (tool->lost == NULL) | |
466 | tool->lost = perf_event__process_lost; | |
c4937a91 KL |
467 | if (tool->lost_samples == NULL) |
468 | tool->lost_samples = perf_event__process_lost_samples; | |
4a96f7a0 AH |
469 | if (tool->aux == NULL) |
470 | tool->aux = perf_event__process_aux; | |
0ad21f68 AH |
471 | if (tool->itrace_start == NULL) |
472 | tool->itrace_start = perf_event__process_itrace_start; | |
0286039f AH |
473 | if (tool->context_switch == NULL) |
474 | tool->context_switch = perf_event__process_switch; | |
9aa0bfa3 SL |
475 | if (tool->ksymbol == NULL) |
476 | tool->ksymbol = perf_event__process_ksymbol; | |
3f604b5f ACM |
477 | if (tool->bpf == NULL) |
478 | tool->bpf = perf_event__process_bpf; | |
45694aa7 ACM |
479 | if (tool->read == NULL) |
480 | tool->read = process_event_sample_stub; | |
481 | if (tool->throttle == NULL) | |
482 | tool->throttle = process_event_stub; | |
483 | if (tool->unthrottle == NULL) | |
484 | tool->unthrottle = process_event_stub; | |
485 | if (tool->attr == NULL) | |
486 | tool->attr = process_event_synth_attr_stub; | |
ffe77725 JO |
487 | if (tool->event_update == NULL) |
488 | tool->event_update = process_event_synth_event_update_stub; | |
45694aa7 ACM |
489 | if (tool->tracing_data == NULL) |
490 | tool->tracing_data = process_event_synth_tracing_data_stub; | |
491 | if (tool->build_id == NULL) | |
5fb0ac16 | 492 | tool->build_id = process_event_op2_stub; |
45694aa7 | 493 | if (tool->finished_round == NULL) { |
0a8cb85c | 494 | if (tool->ordered_events) |
45694aa7 | 495 | tool->finished_round = process_finished_round; |
d6b17beb | 496 | else |
45694aa7 | 497 | tool->finished_round = process_finished_round_stub; |
d6b17beb | 498 | } |
3c659eed | 499 | if (tool->id_index == NULL) |
5fb0ac16 | 500 | tool->id_index = process_event_op2_stub; |
a16ac023 | 501 | if (tool->auxtrace_info == NULL) |
5fb0ac16 | 502 | tool->auxtrace_info = process_event_op2_stub; |
a16ac023 AH |
503 | if (tool->auxtrace == NULL) |
504 | tool->auxtrace = process_event_auxtrace_stub; | |
e9bf54d2 | 505 | if (tool->auxtrace_error == NULL) |
5fb0ac16 | 506 | tool->auxtrace_error = process_event_op2_stub; |
5f3339d2 JO |
507 | if (tool->thread_map == NULL) |
508 | tool->thread_map = process_event_thread_map_stub; | |
6640b6c2 JO |
509 | if (tool->cpu_map == NULL) |
510 | tool->cpu_map = process_event_cpu_map_stub; | |
374fb9e3 JO |
511 | if (tool->stat_config == NULL) |
512 | tool->stat_config = process_event_stat_config_stub; | |
d80518c9 JO |
513 | if (tool->stat == NULL) |
514 | tool->stat = process_stat_stub; | |
2d8f0f18 JO |
515 | if (tool->stat_round == NULL) |
516 | tool->stat_round = process_stat_round_stub; | |
46bc29b9 AH |
517 | if (tool->time_conv == NULL) |
518 | tool->time_conv = process_event_op2_stub; | |
e9def1b2 DCC |
519 | if (tool->feature == NULL) |
520 | tool->feature = process_event_op2_stub; | |
61a7773c | 521 | if (tool->compressed == NULL) |
cb62c6f1 | 522 | tool->compressed = perf_session__process_compressed_event; |
06aae590 | 523 | } |
48000a1a | 524 | |
268fb20f JO |
525 | static void swap_sample_id_all(union perf_event *event, void *data) |
526 | { | |
527 | void *end = (void *) event + event->header.size; | |
528 | int size = end - data; | |
529 | ||
530 | BUG_ON(size % sizeof(u64)); | |
531 | mem_bswap_64(data, size); | |
532 | } | |
533 | ||
534 | static void perf_event__all64_swap(union perf_event *event, | |
1d037ca1 | 535 | bool sample_id_all __maybe_unused) |
ba21594c | 536 | { |
8115d60c ACM |
537 | struct perf_event_header *hdr = &event->header; |
538 | mem_bswap_64(hdr + 1, event->header.size - sizeof(*hdr)); | |
ba21594c ACM |
539 | } |
540 | ||
268fb20f | 541 | static void perf_event__comm_swap(union perf_event *event, bool sample_id_all) |
ba21594c | 542 | { |
8115d60c ACM |
543 | event->comm.pid = bswap_32(event->comm.pid); |
544 | event->comm.tid = bswap_32(event->comm.tid); | |
268fb20f JO |
545 | |
546 | if (sample_id_all) { | |
547 | void *data = &event->comm.comm; | |
548 | ||
9ac3e487 | 549 | data += PERF_ALIGN(strlen(data) + 1, sizeof(u64)); |
268fb20f JO |
550 | swap_sample_id_all(event, data); |
551 | } | |
ba21594c ACM |
552 | } |
553 | ||
268fb20f JO |
554 | static void perf_event__mmap_swap(union perf_event *event, |
555 | bool sample_id_all) | |
ba21594c | 556 | { |
8115d60c ACM |
557 | event->mmap.pid = bswap_32(event->mmap.pid); |
558 | event->mmap.tid = bswap_32(event->mmap.tid); | |
559 | event->mmap.start = bswap_64(event->mmap.start); | |
560 | event->mmap.len = bswap_64(event->mmap.len); | |
561 | event->mmap.pgoff = bswap_64(event->mmap.pgoff); | |
268fb20f JO |
562 | |
563 | if (sample_id_all) { | |
564 | void *data = &event->mmap.filename; | |
565 | ||
9ac3e487 | 566 | data += PERF_ALIGN(strlen(data) + 1, sizeof(u64)); |
268fb20f JO |
567 | swap_sample_id_all(event, data); |
568 | } | |
ba21594c ACM |
569 | } |
570 | ||
5c5e854b SE |
571 | static void perf_event__mmap2_swap(union perf_event *event, |
572 | bool sample_id_all) | |
573 | { | |
574 | event->mmap2.pid = bswap_32(event->mmap2.pid); | |
575 | event->mmap2.tid = bswap_32(event->mmap2.tid); | |
576 | event->mmap2.start = bswap_64(event->mmap2.start); | |
577 | event->mmap2.len = bswap_64(event->mmap2.len); | |
578 | event->mmap2.pgoff = bswap_64(event->mmap2.pgoff); | |
579 | event->mmap2.maj = bswap_32(event->mmap2.maj); | |
580 | event->mmap2.min = bswap_32(event->mmap2.min); | |
581 | event->mmap2.ino = bswap_64(event->mmap2.ino); | |
582 | ||
583 | if (sample_id_all) { | |
584 | void *data = &event->mmap2.filename; | |
585 | ||
586 | data += PERF_ALIGN(strlen(data) + 1, sizeof(u64)); | |
587 | swap_sample_id_all(event, data); | |
588 | } | |
589 | } | |
268fb20f | 590 | static void perf_event__task_swap(union perf_event *event, bool sample_id_all) |
ba21594c | 591 | { |
8115d60c ACM |
592 | event->fork.pid = bswap_32(event->fork.pid); |
593 | event->fork.tid = bswap_32(event->fork.tid); | |
594 | event->fork.ppid = bswap_32(event->fork.ppid); | |
595 | event->fork.ptid = bswap_32(event->fork.ptid); | |
596 | event->fork.time = bswap_64(event->fork.time); | |
268fb20f JO |
597 | |
598 | if (sample_id_all) | |
599 | swap_sample_id_all(event, &event->fork + 1); | |
ba21594c ACM |
600 | } |
601 | ||
268fb20f | 602 | static void perf_event__read_swap(union perf_event *event, bool sample_id_all) |
ba21594c | 603 | { |
8115d60c ACM |
604 | event->read.pid = bswap_32(event->read.pid); |
605 | event->read.tid = bswap_32(event->read.tid); | |
606 | event->read.value = bswap_64(event->read.value); | |
607 | event->read.time_enabled = bswap_64(event->read.time_enabled); | |
608 | event->read.time_running = bswap_64(event->read.time_running); | |
609 | event->read.id = bswap_64(event->read.id); | |
268fb20f JO |
610 | |
611 | if (sample_id_all) | |
612 | swap_sample_id_all(event, &event->read + 1); | |
ba21594c ACM |
613 | } |
614 | ||
4a96f7a0 AH |
615 | static void perf_event__aux_swap(union perf_event *event, bool sample_id_all) |
616 | { | |
617 | event->aux.aux_offset = bswap_64(event->aux.aux_offset); | |
618 | event->aux.aux_size = bswap_64(event->aux.aux_size); | |
619 | event->aux.flags = bswap_64(event->aux.flags); | |
620 | ||
621 | if (sample_id_all) | |
622 | swap_sample_id_all(event, &event->aux + 1); | |
623 | } | |
624 | ||
0ad21f68 AH |
625 | static void perf_event__itrace_start_swap(union perf_event *event, |
626 | bool sample_id_all) | |
627 | { | |
628 | event->itrace_start.pid = bswap_32(event->itrace_start.pid); | |
629 | event->itrace_start.tid = bswap_32(event->itrace_start.tid); | |
630 | ||
631 | if (sample_id_all) | |
632 | swap_sample_id_all(event, &event->itrace_start + 1); | |
633 | } | |
634 | ||
0286039f AH |
635 | static void perf_event__switch_swap(union perf_event *event, bool sample_id_all) |
636 | { | |
637 | if (event->header.type == PERF_RECORD_SWITCH_CPU_WIDE) { | |
638 | event->context_switch.next_prev_pid = | |
639 | bswap_32(event->context_switch.next_prev_pid); | |
640 | event->context_switch.next_prev_tid = | |
641 | bswap_32(event->context_switch.next_prev_tid); | |
642 | } | |
643 | ||
644 | if (sample_id_all) | |
645 | swap_sample_id_all(event, &event->context_switch + 1); | |
646 | } | |
647 | ||
dd96c46b JO |
648 | static void perf_event__throttle_swap(union perf_event *event, |
649 | bool sample_id_all) | |
650 | { | |
651 | event->throttle.time = bswap_64(event->throttle.time); | |
652 | event->throttle.id = bswap_64(event->throttle.id); | |
653 | event->throttle.stream_id = bswap_64(event->throttle.stream_id); | |
654 | ||
655 | if (sample_id_all) | |
656 | swap_sample_id_all(event, &event->throttle + 1); | |
657 | } | |
658 | ||
acd244b8 NK |
659 | static void perf_event__namespaces_swap(union perf_event *event, |
660 | bool sample_id_all) | |
661 | { | |
662 | u64 i; | |
663 | ||
664 | event->namespaces.pid = bswap_32(event->namespaces.pid); | |
665 | event->namespaces.tid = bswap_32(event->namespaces.tid); | |
666 | event->namespaces.nr_namespaces = bswap_64(event->namespaces.nr_namespaces); | |
667 | ||
668 | for (i = 0; i < event->namespaces.nr_namespaces; i++) { | |
669 | struct perf_ns_link_info *ns = &event->namespaces.link_info[i]; | |
670 | ||
671 | ns->dev = bswap_64(ns->dev); | |
672 | ns->ino = bswap_64(ns->ino); | |
673 | } | |
674 | ||
675 | if (sample_id_all) | |
676 | swap_sample_id_all(event, &event->namespaces.link_info[i]); | |
677 | } | |
678 | ||
e108c66e JO |
679 | static u8 revbyte(u8 b) |
680 | { | |
681 | int rev = (b >> 4) | ((b & 0xf) << 4); | |
682 | rev = ((rev & 0xcc) >> 2) | ((rev & 0x33) << 2); | |
683 | rev = ((rev & 0xaa) >> 1) | ((rev & 0x55) << 1); | |
684 | return (u8) rev; | |
685 | } | |
686 | ||
687 | /* | |
688 | * XXX this is hack in attempt to carry flags bitfield | |
bd1a0be5 | 689 | * through endian village. ABI says: |
e108c66e JO |
690 | * |
691 | * Bit-fields are allocated from right to left (least to most significant) | |
692 | * on little-endian implementations and from left to right (most to least | |
693 | * significant) on big-endian implementations. | |
694 | * | |
695 | * The above seems to be byte specific, so we need to reverse each | |
696 | * byte of the bitfield. 'Internet' also says this might be implementation | |
697 | * specific and we probably need proper fix and carry perf_event_attr | |
698 | * bitfield flags in separate data file FEAT_ section. Thought this seems | |
699 | * to work for now. | |
700 | */ | |
701 | static void swap_bitfield(u8 *p, unsigned len) | |
702 | { | |
703 | unsigned i; | |
704 | ||
705 | for (i = 0; i < len; i++) { | |
706 | *p = revbyte(*p); | |
707 | p++; | |
708 | } | |
709 | } | |
710 | ||
eda3913b DA |
711 | /* exported for swapping attributes in file header */ |
712 | void perf_event__attr_swap(struct perf_event_attr *attr) | |
713 | { | |
714 | attr->type = bswap_32(attr->type); | |
715 | attr->size = bswap_32(attr->size); | |
b30b6172 WN |
716 | |
717 | #define bswap_safe(f, n) \ | |
718 | (attr->size > (offsetof(struct perf_event_attr, f) + \ | |
719 | sizeof(attr->f) * (n))) | |
720 | #define bswap_field(f, sz) \ | |
721 | do { \ | |
722 | if (bswap_safe(f, 0)) \ | |
723 | attr->f = bswap_##sz(attr->f); \ | |
724 | } while(0) | |
792d48b4 | 725 | #define bswap_field_16(f) bswap_field(f, 16) |
b30b6172 WN |
726 | #define bswap_field_32(f) bswap_field(f, 32) |
727 | #define bswap_field_64(f) bswap_field(f, 64) | |
728 | ||
729 | bswap_field_64(config); | |
730 | bswap_field_64(sample_period); | |
731 | bswap_field_64(sample_type); | |
732 | bswap_field_64(read_format); | |
733 | bswap_field_32(wakeup_events); | |
734 | bswap_field_32(bp_type); | |
735 | bswap_field_64(bp_addr); | |
736 | bswap_field_64(bp_len); | |
737 | bswap_field_64(branch_sample_type); | |
738 | bswap_field_64(sample_regs_user); | |
739 | bswap_field_32(sample_stack_user); | |
740 | bswap_field_32(aux_watermark); | |
792d48b4 | 741 | bswap_field_16(sample_max_stack); |
b30b6172 WN |
742 | |
743 | /* | |
744 | * After read_format are bitfields. Check read_format because | |
745 | * we are unable to use offsetof on bitfield. | |
746 | */ | |
747 | if (bswap_safe(read_format, 1)) | |
748 | swap_bitfield((u8 *) (&attr->read_format + 1), | |
749 | sizeof(u64)); | |
750 | #undef bswap_field_64 | |
751 | #undef bswap_field_32 | |
752 | #undef bswap_field | |
753 | #undef bswap_safe | |
eda3913b DA |
754 | } |
755 | ||
268fb20f | 756 | static void perf_event__hdr_attr_swap(union perf_event *event, |
1d037ca1 | 757 | bool sample_id_all __maybe_unused) |
2c46dbb5 TZ |
758 | { |
759 | size_t size; | |
760 | ||
eda3913b | 761 | perf_event__attr_swap(&event->attr.attr); |
2c46dbb5 | 762 | |
8115d60c ACM |
763 | size = event->header.size; |
764 | size -= (void *)&event->attr.id - (void *)event; | |
765 | mem_bswap_64(event->attr.id, size); | |
2c46dbb5 TZ |
766 | } |
767 | ||
ffe77725 JO |
768 | static void perf_event__event_update_swap(union perf_event *event, |
769 | bool sample_id_all __maybe_unused) | |
770 | { | |
771 | event->event_update.type = bswap_64(event->event_update.type); | |
772 | event->event_update.id = bswap_64(event->event_update.id); | |
773 | } | |
774 | ||
268fb20f | 775 | static void perf_event__event_type_swap(union perf_event *event, |
1d037ca1 | 776 | bool sample_id_all __maybe_unused) |
cd19a035 | 777 | { |
8115d60c ACM |
778 | event->event_type.event_type.event_id = |
779 | bswap_64(event->event_type.event_type.event_id); | |
cd19a035 TZ |
780 | } |
781 | ||
268fb20f | 782 | static void perf_event__tracing_data_swap(union perf_event *event, |
1d037ca1 | 783 | bool sample_id_all __maybe_unused) |
9215545e | 784 | { |
8115d60c | 785 | event->tracing_data.size = bswap_32(event->tracing_data.size); |
9215545e TZ |
786 | } |
787 | ||
a16ac023 AH |
788 | static void perf_event__auxtrace_info_swap(union perf_event *event, |
789 | bool sample_id_all __maybe_unused) | |
790 | { | |
791 | size_t size; | |
792 | ||
793 | event->auxtrace_info.type = bswap_32(event->auxtrace_info.type); | |
794 | ||
795 | size = event->header.size; | |
796 | size -= (void *)&event->auxtrace_info.priv - (void *)event; | |
797 | mem_bswap_64(event->auxtrace_info.priv, size); | |
798 | } | |
799 | ||
800 | static void perf_event__auxtrace_swap(union perf_event *event, | |
801 | bool sample_id_all __maybe_unused) | |
802 | { | |
803 | event->auxtrace.size = bswap_64(event->auxtrace.size); | |
804 | event->auxtrace.offset = bswap_64(event->auxtrace.offset); | |
805 | event->auxtrace.reference = bswap_64(event->auxtrace.reference); | |
806 | event->auxtrace.idx = bswap_32(event->auxtrace.idx); | |
807 | event->auxtrace.tid = bswap_32(event->auxtrace.tid); | |
808 | event->auxtrace.cpu = bswap_32(event->auxtrace.cpu); | |
809 | } | |
810 | ||
e9bf54d2 AH |
811 | static void perf_event__auxtrace_error_swap(union perf_event *event, |
812 | bool sample_id_all __maybe_unused) | |
813 | { | |
814 | event->auxtrace_error.type = bswap_32(event->auxtrace_error.type); | |
815 | event->auxtrace_error.code = bswap_32(event->auxtrace_error.code); | |
816 | event->auxtrace_error.cpu = bswap_32(event->auxtrace_error.cpu); | |
817 | event->auxtrace_error.pid = bswap_32(event->auxtrace_error.pid); | |
818 | event->auxtrace_error.tid = bswap_32(event->auxtrace_error.tid); | |
16bd4321 | 819 | event->auxtrace_error.fmt = bswap_32(event->auxtrace_error.fmt); |
e9bf54d2 | 820 | event->auxtrace_error.ip = bswap_64(event->auxtrace_error.ip); |
16bd4321 AH |
821 | if (event->auxtrace_error.fmt) |
822 | event->auxtrace_error.time = bswap_64(event->auxtrace_error.time); | |
e9bf54d2 AH |
823 | } |
824 | ||
5f3339d2 JO |
825 | static void perf_event__thread_map_swap(union perf_event *event, |
826 | bool sample_id_all __maybe_unused) | |
827 | { | |
828 | unsigned i; | |
829 | ||
830 | event->thread_map.nr = bswap_64(event->thread_map.nr); | |
831 | ||
832 | for (i = 0; i < event->thread_map.nr; i++) | |
833 | event->thread_map.entries[i].pid = bswap_64(event->thread_map.entries[i].pid); | |
834 | } | |
835 | ||
6640b6c2 JO |
836 | static void perf_event__cpu_map_swap(union perf_event *event, |
837 | bool sample_id_all __maybe_unused) | |
838 | { | |
839 | struct cpu_map_data *data = &event->cpu_map.data; | |
840 | struct cpu_map_entries *cpus; | |
841 | struct cpu_map_mask *mask; | |
842 | unsigned i; | |
843 | ||
844 | data->type = bswap_64(data->type); | |
845 | ||
846 | switch (data->type) { | |
847 | case PERF_CPU_MAP__CPUS: | |
848 | cpus = (struct cpu_map_entries *)data->data; | |
849 | ||
850 | cpus->nr = bswap_16(cpus->nr); | |
851 | ||
852 | for (i = 0; i < cpus->nr; i++) | |
853 | cpus->cpu[i] = bswap_16(cpus->cpu[i]); | |
854 | break; | |
855 | case PERF_CPU_MAP__MASK: | |
856 | mask = (struct cpu_map_mask *) data->data; | |
857 | ||
858 | mask->nr = bswap_16(mask->nr); | |
859 | mask->long_size = bswap_16(mask->long_size); | |
860 | ||
861 | switch (mask->long_size) { | |
862 | case 4: mem_bswap_32(&mask->mask, mask->nr); break; | |
863 | case 8: mem_bswap_64(&mask->mask, mask->nr); break; | |
864 | default: | |
865 | pr_err("cpu_map swap: unsupported long size\n"); | |
866 | } | |
867 | default: | |
868 | break; | |
869 | } | |
870 | } | |
871 | ||
374fb9e3 JO |
872 | static void perf_event__stat_config_swap(union perf_event *event, |
873 | bool sample_id_all __maybe_unused) | |
874 | { | |
875 | u64 size; | |
876 | ||
877 | size = event->stat_config.nr * sizeof(event->stat_config.data[0]); | |
878 | size += 1; /* nr item itself */ | |
879 | mem_bswap_64(&event->stat_config.nr, size); | |
880 | } | |
881 | ||
d80518c9 JO |
882 | static void perf_event__stat_swap(union perf_event *event, |
883 | bool sample_id_all __maybe_unused) | |
884 | { | |
885 | event->stat.id = bswap_64(event->stat.id); | |
886 | event->stat.thread = bswap_32(event->stat.thread); | |
887 | event->stat.cpu = bswap_32(event->stat.cpu); | |
888 | event->stat.val = bswap_64(event->stat.val); | |
889 | event->stat.ena = bswap_64(event->stat.ena); | |
890 | event->stat.run = bswap_64(event->stat.run); | |
891 | } | |
892 | ||
2d8f0f18 JO |
893 | static void perf_event__stat_round_swap(union perf_event *event, |
894 | bool sample_id_all __maybe_unused) | |
895 | { | |
896 | event->stat_round.type = bswap_64(event->stat_round.type); | |
897 | event->stat_round.time = bswap_64(event->stat_round.time); | |
898 | } | |
899 | ||
268fb20f JO |
900 | typedef void (*perf_event__swap_op)(union perf_event *event, |
901 | bool sample_id_all); | |
ba21594c | 902 | |
8115d60c ACM |
903 | static perf_event__swap_op perf_event__swap_ops[] = { |
904 | [PERF_RECORD_MMAP] = perf_event__mmap_swap, | |
5c5e854b | 905 | [PERF_RECORD_MMAP2] = perf_event__mmap2_swap, |
8115d60c ACM |
906 | [PERF_RECORD_COMM] = perf_event__comm_swap, |
907 | [PERF_RECORD_FORK] = perf_event__task_swap, | |
908 | [PERF_RECORD_EXIT] = perf_event__task_swap, | |
909 | [PERF_RECORD_LOST] = perf_event__all64_swap, | |
910 | [PERF_RECORD_READ] = perf_event__read_swap, | |
dd96c46b JO |
911 | [PERF_RECORD_THROTTLE] = perf_event__throttle_swap, |
912 | [PERF_RECORD_UNTHROTTLE] = perf_event__throttle_swap, | |
8115d60c | 913 | [PERF_RECORD_SAMPLE] = perf_event__all64_swap, |
4a96f7a0 | 914 | [PERF_RECORD_AUX] = perf_event__aux_swap, |
0ad21f68 | 915 | [PERF_RECORD_ITRACE_START] = perf_event__itrace_start_swap, |
c4937a91 | 916 | [PERF_RECORD_LOST_SAMPLES] = perf_event__all64_swap, |
0286039f AH |
917 | [PERF_RECORD_SWITCH] = perf_event__switch_swap, |
918 | [PERF_RECORD_SWITCH_CPU_WIDE] = perf_event__switch_swap, | |
acd244b8 | 919 | [PERF_RECORD_NAMESPACES] = perf_event__namespaces_swap, |
eda3913b | 920 | [PERF_RECORD_HEADER_ATTR] = perf_event__hdr_attr_swap, |
8115d60c ACM |
921 | [PERF_RECORD_HEADER_EVENT_TYPE] = perf_event__event_type_swap, |
922 | [PERF_RECORD_HEADER_TRACING_DATA] = perf_event__tracing_data_swap, | |
923 | [PERF_RECORD_HEADER_BUILD_ID] = NULL, | |
3c659eed | 924 | [PERF_RECORD_ID_INDEX] = perf_event__all64_swap, |
a16ac023 AH |
925 | [PERF_RECORD_AUXTRACE_INFO] = perf_event__auxtrace_info_swap, |
926 | [PERF_RECORD_AUXTRACE] = perf_event__auxtrace_swap, | |
e9bf54d2 | 927 | [PERF_RECORD_AUXTRACE_ERROR] = perf_event__auxtrace_error_swap, |
5f3339d2 | 928 | [PERF_RECORD_THREAD_MAP] = perf_event__thread_map_swap, |
6640b6c2 | 929 | [PERF_RECORD_CPU_MAP] = perf_event__cpu_map_swap, |
374fb9e3 | 930 | [PERF_RECORD_STAT_CONFIG] = perf_event__stat_config_swap, |
d80518c9 | 931 | [PERF_RECORD_STAT] = perf_event__stat_swap, |
2d8f0f18 | 932 | [PERF_RECORD_STAT_ROUND] = perf_event__stat_round_swap, |
ffe77725 | 933 | [PERF_RECORD_EVENT_UPDATE] = perf_event__event_update_swap, |
46bc29b9 | 934 | [PERF_RECORD_TIME_CONV] = perf_event__all64_swap, |
8115d60c | 935 | [PERF_RECORD_HEADER_MAX] = NULL, |
ba21594c ACM |
936 | }; |
937 | ||
d6b17beb FW |
938 | /* |
939 | * When perf record finishes a pass on every buffers, it records this pseudo | |
940 | * event. | |
941 | * We record the max timestamp t found in the pass n. | |
942 | * Assuming these timestamps are monotonic across cpus, we know that if | |
943 | * a buffer still has events with timestamps below t, they will be all | |
944 | * available and then read in the pass n + 1. | |
945 | * Hence when we start to read the pass n + 2, we can safely flush every | |
946 | * events with timestamps below t. | |
947 | * | |
948 | * ============ PASS n ================= | |
949 | * CPU 0 | CPU 1 | |
950 | * | | |
951 | * cnt1 timestamps | cnt2 timestamps | |
952 | * 1 | 2 | |
953 | * 2 | 3 | |
954 | * - | 4 <--- max recorded | |
955 | * | |
956 | * ============ PASS n + 1 ============== | |
957 | * CPU 0 | CPU 1 | |
958 | * | | |
959 | * cnt1 timestamps | cnt2 timestamps | |
960 | * 3 | 5 | |
961 | * 4 | 6 | |
962 | * 5 | 7 <---- max recorded | |
963 | * | |
964 | * Flush every events below timestamp 4 | |
965 | * | |
966 | * ============ PASS n + 2 ============== | |
967 | * CPU 0 | CPU 1 | |
968 | * | | |
969 | * cnt1 timestamps | cnt2 timestamps | |
970 | * 6 | 8 | |
971 | * 7 | 9 | |
972 | * - | 10 | |
973 | * | |
974 | * Flush every events below timestamp 7 | |
975 | * etc... | |
976 | */ | |
b7b61cbe | 977 | static int process_finished_round(struct perf_tool *tool __maybe_unused, |
1d037ca1 | 978 | union perf_event *event __maybe_unused, |
d704ebda | 979 | struct ordered_events *oe) |
d6b17beb | 980 | { |
5531e162 AH |
981 | if (dump_trace) |
982 | fprintf(stdout, "\n"); | |
b7b61cbe | 983 | return ordered_events__flush(oe, OE_FLUSH__ROUND); |
d6b17beb FW |
984 | } |
985 | ||
b7b61cbe | 986 | int perf_session__queue_event(struct perf_session *s, union perf_event *event, |
dc83e139 | 987 | u64 timestamp, u64 file_offset) |
c61e52ee | 988 | { |
dc83e139 | 989 | return ordered_events__queue(&s->ordered_events, event, timestamp, file_offset); |
640c03ce | 990 | } |
c61e52ee | 991 | |
384b6055 | 992 | static void callchain__lbr_callstack_printf(struct perf_sample *sample) |
640c03ce | 993 | { |
384b6055 KL |
994 | struct ip_callchain *callchain = sample->callchain; |
995 | struct branch_stack *lbr_stack = sample->branch_stack; | |
996 | u64 kernel_callchain_nr = callchain->nr; | |
640c03ce | 997 | unsigned int i; |
c61e52ee | 998 | |
384b6055 KL |
999 | for (i = 0; i < kernel_callchain_nr; i++) { |
1000 | if (callchain->ips[i] == PERF_CONTEXT_USER) | |
1001 | break; | |
1002 | } | |
1003 | ||
1004 | if ((i != kernel_callchain_nr) && lbr_stack->nr) { | |
1005 | u64 total_nr; | |
1006 | /* | |
1007 | * LBR callstack can only get user call chain, | |
1008 | * i is kernel call chain number, | |
1009 | * 1 is PERF_CONTEXT_USER. | |
1010 | * | |
1011 | * The user call chain is stored in LBR registers. | |
1012 | * LBR are pair registers. The caller is stored | |
1013 | * in "from" register, while the callee is stored | |
1014 | * in "to" register. | |
1015 | * For example, there is a call stack | |
1016 | * "A"->"B"->"C"->"D". | |
1017 | * The LBR registers will recorde like | |
1018 | * "C"->"D", "B"->"C", "A"->"B". | |
1019 | * So only the first "to" register and all "from" | |
1020 | * registers are needed to construct the whole stack. | |
1021 | */ | |
1022 | total_nr = i + 1 + lbr_stack->nr + 1; | |
1023 | kernel_callchain_nr = i + 1; | |
1024 | ||
1025 | printf("... LBR call chain: nr:%" PRIu64 "\n", total_nr); | |
1026 | ||
1027 | for (i = 0; i < kernel_callchain_nr; i++) | |
1028 | printf("..... %2d: %016" PRIx64 "\n", | |
1029 | i, callchain->ips[i]); | |
1030 | ||
1031 | printf("..... %2d: %016" PRIx64 "\n", | |
1032 | (int)(kernel_callchain_nr), lbr_stack->entries[0].to); | |
1033 | for (i = 0; i < lbr_stack->nr; i++) | |
1034 | printf("..... %2d: %016" PRIx64 "\n", | |
1035 | (int)(i + kernel_callchain_nr + 1), lbr_stack->entries[i].from); | |
1036 | } | |
1037 | } | |
1038 | ||
32dcd021 | 1039 | static void callchain__printf(struct evsel *evsel, |
384b6055 KL |
1040 | struct perf_sample *sample) |
1041 | { | |
1042 | unsigned int i; | |
1043 | struct ip_callchain *callchain = sample->callchain; | |
1044 | ||
acf2abbd | 1045 | if (perf_evsel__has_branch_callstack(evsel)) |
384b6055 KL |
1046 | callchain__lbr_callstack_printf(sample); |
1047 | ||
1048 | printf("... FP chain: nr:%" PRIu64 "\n", callchain->nr); | |
640c03ce | 1049 | |
384b6055 | 1050 | for (i = 0; i < callchain->nr; i++) |
9486aa38 | 1051 | printf("..... %2d: %016" PRIx64 "\n", |
384b6055 | 1052 | i, callchain->ips[i]); |
c61e52ee FW |
1053 | } |
1054 | ||
d2720c3d | 1055 | static void branch_stack__printf(struct perf_sample *sample, bool callstack) |
b5387528 RAV |
1056 | { |
1057 | uint64_t i; | |
1058 | ||
d2720c3d AB |
1059 | printf("%s: nr:%" PRIu64 "\n", |
1060 | !callstack ? "... branch stack" : "... branch callstack", | |
1061 | sample->branch_stack->nr); | |
b5387528 | 1062 | |
0e332f03 AK |
1063 | for (i = 0; i < sample->branch_stack->nr; i++) { |
1064 | struct branch_entry *e = &sample->branch_stack->entries[i]; | |
1065 | ||
d2720c3d AB |
1066 | if (!callstack) { |
1067 | printf("..... %2"PRIu64": %016" PRIx64 " -> %016" PRIx64 " %hu cycles %s%s%s%s %x\n", | |
1068 | i, e->from, e->to, | |
1069 | (unsigned short)e->flags.cycles, | |
1070 | e->flags.mispred ? "M" : " ", | |
1071 | e->flags.predicted ? "P" : " ", | |
1072 | e->flags.abort ? "A" : " ", | |
1073 | e->flags.in_tx ? "T" : " ", | |
1074 | (unsigned)e->flags.reserved); | |
1075 | } else { | |
1076 | printf("..... %2"PRIu64": %016" PRIx64 "\n", | |
1077 | i, i > 0 ? e->from : e->to); | |
1078 | } | |
0e332f03 | 1079 | } |
b5387528 RAV |
1080 | } |
1081 | ||
0f6a3015 JO |
1082 | static void regs_dump__printf(u64 mask, u64 *regs) |
1083 | { | |
1084 | unsigned rid, i = 0; | |
1085 | ||
1086 | for_each_set_bit(rid, (unsigned long *) &mask, sizeof(mask) * 8) { | |
1087 | u64 val = regs[i++]; | |
1088 | ||
1089 | printf(".... %-5s 0x%" PRIx64 "\n", | |
1090 | perf_reg_name(rid), val); | |
1091 | } | |
1092 | } | |
1093 | ||
6a21c0b5 SE |
1094 | static const char *regs_abi[] = { |
1095 | [PERF_SAMPLE_REGS_ABI_NONE] = "none", | |
1096 | [PERF_SAMPLE_REGS_ABI_32] = "32-bit", | |
1097 | [PERF_SAMPLE_REGS_ABI_64] = "64-bit", | |
1098 | }; | |
1099 | ||
1100 | static inline const char *regs_dump_abi(struct regs_dump *d) | |
1101 | { | |
1102 | if (d->abi > PERF_SAMPLE_REGS_ABI_64) | |
1103 | return "unknown"; | |
1104 | ||
1105 | return regs_abi[d->abi]; | |
1106 | } | |
1107 | ||
1108 | static void regs__printf(const char *type, struct regs_dump *regs) | |
1109 | { | |
1110 | u64 mask = regs->mask; | |
1111 | ||
1112 | printf("... %s regs: mask 0x%" PRIx64 " ABI %s\n", | |
1113 | type, | |
1114 | mask, | |
1115 | regs_dump_abi(regs)); | |
1116 | ||
1117 | regs_dump__printf(mask, regs->regs); | |
1118 | } | |
1119 | ||
352ea45a | 1120 | static void regs_user__printf(struct perf_sample *sample) |
0f6a3015 JO |
1121 | { |
1122 | struct regs_dump *user_regs = &sample->user_regs; | |
1123 | ||
6a21c0b5 SE |
1124 | if (user_regs->regs) |
1125 | regs__printf("user", user_regs); | |
1126 | } | |
1127 | ||
1128 | static void regs_intr__printf(struct perf_sample *sample) | |
1129 | { | |
1130 | struct regs_dump *intr_regs = &sample->intr_regs; | |
1131 | ||
1132 | if (intr_regs->regs) | |
1133 | regs__printf("intr", intr_regs); | |
0f6a3015 JO |
1134 | } |
1135 | ||
1136 | static void stack_user__printf(struct stack_dump *dump) | |
1137 | { | |
1138 | printf("... ustack: size %" PRIu64 ", offset 0x%x\n", | |
1139 | dump->size, dump->offset); | |
1140 | } | |
1141 | ||
63503dba | 1142 | static void perf_evlist__print_tstamp(struct evlist *evlist, |
8115d60c | 1143 | union perf_event *event, |
8d50e5b4 | 1144 | struct perf_sample *sample) |
9c90a61c | 1145 | { |
9fa8727a | 1146 | u64 sample_type = __perf_evlist__combined_sample_type(evlist); |
7f3be652 | 1147 | |
9c90a61c | 1148 | if (event->header.type != PERF_RECORD_SAMPLE && |
9fa8727a | 1149 | !perf_evlist__sample_id_all(evlist)) { |
9c90a61c ACM |
1150 | fputs("-1 -1 ", stdout); |
1151 | return; | |
1152 | } | |
1153 | ||
7f3be652 | 1154 | if ((sample_type & PERF_SAMPLE_CPU)) |
9c90a61c ACM |
1155 | printf("%u ", sample->cpu); |
1156 | ||
7f3be652 | 1157 | if (sample_type & PERF_SAMPLE_TIME) |
9486aa38 | 1158 | printf("%" PRIu64 " ", sample->time); |
9c90a61c ACM |
1159 | } |
1160 | ||
9ede473c JO |
1161 | static void sample_read__printf(struct perf_sample *sample, u64 read_format) |
1162 | { | |
1163 | printf("... sample_read:\n"); | |
1164 | ||
1165 | if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED) | |
1166 | printf("...... time enabled %016" PRIx64 "\n", | |
1167 | sample->read.time_enabled); | |
1168 | ||
1169 | if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING) | |
1170 | printf("...... time running %016" PRIx64 "\n", | |
1171 | sample->read.time_running); | |
1172 | ||
1173 | if (read_format & PERF_FORMAT_GROUP) { | |
1174 | u64 i; | |
1175 | ||
1176 | printf(".... group nr %" PRIu64 "\n", sample->read.group.nr); | |
1177 | ||
1178 | for (i = 0; i < sample->read.group.nr; i++) { | |
1179 | struct sample_read_value *value; | |
1180 | ||
1181 | value = &sample->read.group.values[i]; | |
1182 | printf("..... id %016" PRIx64 | |
1183 | ", value %016" PRIx64 "\n", | |
1184 | value->id, value->value); | |
1185 | } | |
1186 | } else | |
1187 | printf("..... id %016" PRIx64 ", value %016" PRIx64 "\n", | |
1188 | sample->read.one.id, sample->read.one.value); | |
1189 | } | |
1190 | ||
63503dba | 1191 | static void dump_event(struct evlist *evlist, union perf_event *event, |
8d50e5b4 | 1192 | u64 file_offset, struct perf_sample *sample) |
9aefcab0 TG |
1193 | { |
1194 | if (!dump_trace) | |
1195 | return; | |
1196 | ||
9486aa38 ACM |
1197 | printf("\n%#" PRIx64 " [%#x]: event: %d\n", |
1198 | file_offset, event->header.size, event->header.type); | |
9aefcab0 TG |
1199 | |
1200 | trace_event(event); | |
93115d32 TR |
1201 | if (event->header.type == PERF_RECORD_SAMPLE && evlist->trace_event_sample_raw) |
1202 | evlist->trace_event_sample_raw(evlist, event, sample); | |
9aefcab0 TG |
1203 | |
1204 | if (sample) | |
9fa8727a | 1205 | perf_evlist__print_tstamp(evlist, event, sample); |
9aefcab0 | 1206 | |
9486aa38 | 1207 | printf("%#" PRIx64 " [%#x]: PERF_RECORD_%s", file_offset, |
8115d60c | 1208 | event->header.size, perf_event__name(event->header.type)); |
9aefcab0 TG |
1209 | } |
1210 | ||
32dcd021 | 1211 | static void dump_sample(struct evsel *evsel, union perf_event *event, |
8d50e5b4 | 1212 | struct perf_sample *sample) |
9aefcab0 | 1213 | { |
7f3be652 ACM |
1214 | u64 sample_type; |
1215 | ||
ddbc24b7 ACM |
1216 | if (!dump_trace) |
1217 | return; | |
1218 | ||
0ea590ae | 1219 | printf("(IP, 0x%x): %d/%d: %#" PRIx64 " period: %" PRIu64 " addr: %#" PRIx64 "\n", |
9486aa38 | 1220 | event->header.misc, sample->pid, sample->tid, sample->ip, |
7cec0922 | 1221 | sample->period, sample->addr); |
9aefcab0 | 1222 | |
1fc632ce | 1223 | sample_type = evsel->core.attr.sample_type; |
7f3be652 | 1224 | |
27de9b2b | 1225 | if (evsel__has_callchain(evsel)) |
384b6055 | 1226 | callchain__printf(evsel, sample); |
b5387528 | 1227 | |
d2720c3d AB |
1228 | if (sample_type & PERF_SAMPLE_BRANCH_STACK) |
1229 | branch_stack__printf(sample, perf_evsel__has_branch_callstack(evsel)); | |
0f6a3015 JO |
1230 | |
1231 | if (sample_type & PERF_SAMPLE_REGS_USER) | |
352ea45a | 1232 | regs_user__printf(sample); |
0f6a3015 | 1233 | |
6a21c0b5 SE |
1234 | if (sample_type & PERF_SAMPLE_REGS_INTR) |
1235 | regs_intr__printf(sample); | |
1236 | ||
0f6a3015 JO |
1237 | if (sample_type & PERF_SAMPLE_STACK_USER) |
1238 | stack_user__printf(&sample->user_stack); | |
05484298 AK |
1239 | |
1240 | if (sample_type & PERF_SAMPLE_WEIGHT) | |
1241 | printf("... weight: %" PRIu64 "\n", sample->weight); | |
98a3b32c SE |
1242 | |
1243 | if (sample_type & PERF_SAMPLE_DATA_SRC) | |
1244 | printf(" . data_src: 0x%"PRIx64"\n", sample->data_src); | |
9ede473c | 1245 | |
8780fb25 KL |
1246 | if (sample_type & PERF_SAMPLE_PHYS_ADDR) |
1247 | printf(" .. phys_addr: 0x%"PRIx64"\n", sample->phys_addr); | |
1248 | ||
475eeab9 AK |
1249 | if (sample_type & PERF_SAMPLE_TRANSACTION) |
1250 | printf("... transaction: %" PRIx64 "\n", sample->transaction); | |
1251 | ||
9ede473c | 1252 | if (sample_type & PERF_SAMPLE_READ) |
1fc632ce | 1253 | sample_read__printf(sample, evsel->core.attr.read_format); |
9aefcab0 TG |
1254 | } |
1255 | ||
32dcd021 | 1256 | static void dump_read(struct evsel *evsel, union perf_event *event) |
dac7f6b7 | 1257 | { |
69d81f09 | 1258 | struct perf_record_read *read_event = &event->read; |
dac7f6b7 JO |
1259 | u64 read_format; |
1260 | ||
1261 | if (!dump_trace) | |
1262 | return; | |
1263 | ||
213a6c1d | 1264 | printf(": %d %d %s %" PRI_lu64 "\n", event->read.pid, event->read.tid, |
fc50e0ba | 1265 | perf_evsel__name(evsel), |
dac7f6b7 JO |
1266 | event->read.value); |
1267 | ||
f3c8d907 LY |
1268 | if (!evsel) |
1269 | return; | |
1270 | ||
1fc632ce | 1271 | read_format = evsel->core.attr.read_format; |
dac7f6b7 JO |
1272 | |
1273 | if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED) | |
213a6c1d | 1274 | printf("... time enabled : %" PRI_lu64 "\n", read_event->time_enabled); |
dac7f6b7 JO |
1275 | |
1276 | if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING) | |
213a6c1d | 1277 | printf("... time running : %" PRI_lu64 "\n", read_event->time_running); |
dac7f6b7 JO |
1278 | |
1279 | if (read_format & PERF_FORMAT_ID) | |
213a6c1d | 1280 | printf("... id : %" PRI_lu64 "\n", read_event->id); |
dac7f6b7 JO |
1281 | } |
1282 | ||
54245fdc | 1283 | static struct machine *machines__find_for_cpumode(struct machines *machines, |
ef89325f AH |
1284 | union perf_event *event, |
1285 | struct perf_sample *sample) | |
743eb868 | 1286 | { |
ad85ace0 | 1287 | struct machine *machine; |
743eb868 | 1288 | |
7c0f4a41 | 1289 | if (perf_guest && |
473398a2 ACM |
1290 | ((sample->cpumode == PERF_RECORD_MISC_GUEST_KERNEL) || |
1291 | (sample->cpumode == PERF_RECORD_MISC_GUEST_USER))) { | |
7fb0a5ee ND |
1292 | u32 pid; |
1293 | ||
5c5e854b SE |
1294 | if (event->header.type == PERF_RECORD_MMAP |
1295 | || event->header.type == PERF_RECORD_MMAP2) | |
7fb0a5ee ND |
1296 | pid = event->mmap.pid; |
1297 | else | |
ef89325f | 1298 | pid = sample->pid; |
7fb0a5ee | 1299 | |
54245fdc | 1300 | machine = machines__find(machines, pid); |
ad85ace0 | 1301 | if (!machine) |
3caeaa56 | 1302 | machine = machines__findnew(machines, DEFAULT_GUEST_KERNEL_ID); |
ad85ace0 | 1303 | return machine; |
7fb0a5ee | 1304 | } |
743eb868 | 1305 | |
54245fdc | 1306 | return &machines->host; |
743eb868 ACM |
1307 | } |
1308 | ||
63503dba | 1309 | static int deliver_sample_value(struct evlist *evlist, |
e4caec0d JO |
1310 | struct perf_tool *tool, |
1311 | union perf_event *event, | |
1312 | struct perf_sample *sample, | |
1313 | struct sample_read_value *v, | |
1314 | struct machine *machine) | |
1315 | { | |
313e53b0 | 1316 | struct perf_sample_id *sid = perf_evlist__id2sid(evlist, v->id); |
e4caec0d | 1317 | |
e4caec0d JO |
1318 | if (sid) { |
1319 | sample->id = v->id; | |
1320 | sample->period = v->value - sid->period; | |
1321 | sid->period = v->value; | |
1322 | } | |
1323 | ||
1324 | if (!sid || sid->evsel == NULL) { | |
313e53b0 | 1325 | ++evlist->stats.nr_unknown_id; |
e4caec0d JO |
1326 | return 0; |
1327 | } | |
1328 | ||
529c1a9e JO |
1329 | /* |
1330 | * There's no reason to deliver sample | |
1331 | * for zero period, bail out. | |
1332 | */ | |
1333 | if (!sample->period) | |
1334 | return 0; | |
1335 | ||
e4caec0d JO |
1336 | return tool->sample(tool, event, sample, sid->evsel, machine); |
1337 | } | |
1338 | ||
63503dba | 1339 | static int deliver_sample_group(struct evlist *evlist, |
e4caec0d JO |
1340 | struct perf_tool *tool, |
1341 | union perf_event *event, | |
1342 | struct perf_sample *sample, | |
1343 | struct machine *machine) | |
1344 | { | |
1345 | int ret = -EINVAL; | |
1346 | u64 i; | |
1347 | ||
1348 | for (i = 0; i < sample->read.group.nr; i++) { | |
313e53b0 | 1349 | ret = deliver_sample_value(evlist, tool, event, sample, |
e4caec0d JO |
1350 | &sample->read.group.values[i], |
1351 | machine); | |
1352 | if (ret) | |
1353 | break; | |
1354 | } | |
1355 | ||
1356 | return ret; | |
1357 | } | |
1358 | ||
1359 | static int | |
63503dba | 1360 | perf_evlist__deliver_sample(struct evlist *evlist, |
e4caec0d JO |
1361 | struct perf_tool *tool, |
1362 | union perf_event *event, | |
1363 | struct perf_sample *sample, | |
32dcd021 | 1364 | struct evsel *evsel, |
e4caec0d JO |
1365 | struct machine *machine) |
1366 | { | |
1367 | /* We know evsel != NULL. */ | |
1fc632ce JO |
1368 | u64 sample_type = evsel->core.attr.sample_type; |
1369 | u64 read_format = evsel->core.attr.read_format; | |
e4caec0d | 1370 | |
d94386f2 | 1371 | /* Standard sample delivery. */ |
e4caec0d JO |
1372 | if (!(sample_type & PERF_SAMPLE_READ)) |
1373 | return tool->sample(tool, event, sample, evsel, machine); | |
1374 | ||
1375 | /* For PERF_SAMPLE_READ we have either single or group mode. */ | |
1376 | if (read_format & PERF_FORMAT_GROUP) | |
313e53b0 | 1377 | return deliver_sample_group(evlist, tool, event, sample, |
e4caec0d JO |
1378 | machine); |
1379 | else | |
313e53b0 | 1380 | return deliver_sample_value(evlist, tool, event, sample, |
e4caec0d JO |
1381 | &sample->read.one, machine); |
1382 | } | |
1383 | ||
d10eb1eb | 1384 | static int machines__deliver_event(struct machines *machines, |
63503dba | 1385 | struct evlist *evlist, |
d10eb1eb ACM |
1386 | union perf_event *event, |
1387 | struct perf_sample *sample, | |
1388 | struct perf_tool *tool, u64 file_offset) | |
cbf41645 | 1389 | { |
32dcd021 | 1390 | struct evsel *evsel; |
743eb868 | 1391 | struct machine *machine; |
9e69c210 | 1392 | |
9fa8727a | 1393 | dump_event(evlist, event, file_offset, sample); |
532e7269 | 1394 | |
313e53b0 | 1395 | evsel = perf_evlist__id2evsel(evlist, sample->id); |
7b27509f | 1396 | |
fa713a4e | 1397 | machine = machines__find_for_cpumode(machines, event, sample); |
743eb868 | 1398 | |
cbf41645 TG |
1399 | switch (event->header.type) { |
1400 | case PERF_RECORD_SAMPLE: | |
9e69c210 | 1401 | if (evsel == NULL) { |
313e53b0 | 1402 | ++evlist->stats.nr_unknown_id; |
6782206b | 1403 | return 0; |
9e69c210 | 1404 | } |
1b29ac59 | 1405 | dump_sample(evsel, event, sample); |
0c095715 | 1406 | if (machine == NULL) { |
313e53b0 | 1407 | ++evlist->stats.nr_unprocessable_samples; |
6782206b | 1408 | return 0; |
0c095715 | 1409 | } |
313e53b0 | 1410 | return perf_evlist__deliver_sample(evlist, tool, event, sample, evsel, machine); |
cbf41645 | 1411 | case PERF_RECORD_MMAP: |
45694aa7 | 1412 | return tool->mmap(tool, event, sample, machine); |
5c5e854b | 1413 | case PERF_RECORD_MMAP2: |
930e6fcd KL |
1414 | if (event->header.misc & PERF_RECORD_MISC_PROC_MAP_PARSE_TIMEOUT) |
1415 | ++evlist->stats.nr_proc_map_timeout; | |
5c5e854b | 1416 | return tool->mmap2(tool, event, sample, machine); |
cbf41645 | 1417 | case PERF_RECORD_COMM: |
45694aa7 | 1418 | return tool->comm(tool, event, sample, machine); |
f3b3614a HB |
1419 | case PERF_RECORD_NAMESPACES: |
1420 | return tool->namespaces(tool, event, sample, machine); | |
cbf41645 | 1421 | case PERF_RECORD_FORK: |
45694aa7 | 1422 | return tool->fork(tool, event, sample, machine); |
cbf41645 | 1423 | case PERF_RECORD_EXIT: |
45694aa7 | 1424 | return tool->exit(tool, event, sample, machine); |
cbf41645 | 1425 | case PERF_RECORD_LOST: |
45694aa7 | 1426 | if (tool->lost == perf_event__process_lost) |
313e53b0 | 1427 | evlist->stats.total_lost += event->lost.lost; |
45694aa7 | 1428 | return tool->lost(tool, event, sample, machine); |
c4937a91 KL |
1429 | case PERF_RECORD_LOST_SAMPLES: |
1430 | if (tool->lost_samples == perf_event__process_lost_samples) | |
1431 | evlist->stats.total_lost_samples += event->lost_samples.lost; | |
1432 | return tool->lost_samples(tool, event, sample, machine); | |
cbf41645 | 1433 | case PERF_RECORD_READ: |
dac7f6b7 | 1434 | dump_read(evsel, event); |
45694aa7 | 1435 | return tool->read(tool, event, sample, evsel, machine); |
cbf41645 | 1436 | case PERF_RECORD_THROTTLE: |
45694aa7 | 1437 | return tool->throttle(tool, event, sample, machine); |
cbf41645 | 1438 | case PERF_RECORD_UNTHROTTLE: |
45694aa7 | 1439 | return tool->unthrottle(tool, event, sample, machine); |
4a96f7a0 | 1440 | case PERF_RECORD_AUX: |
05a1f47e AS |
1441 | if (tool->aux == perf_event__process_aux) { |
1442 | if (event->aux.flags & PERF_AUX_FLAG_TRUNCATED) | |
1443 | evlist->stats.total_aux_lost += 1; | |
1444 | if (event->aux.flags & PERF_AUX_FLAG_PARTIAL) | |
1445 | evlist->stats.total_aux_partial += 1; | |
1446 | } | |
4a96f7a0 | 1447 | return tool->aux(tool, event, sample, machine); |
0ad21f68 AH |
1448 | case PERF_RECORD_ITRACE_START: |
1449 | return tool->itrace_start(tool, event, sample, machine); | |
0286039f AH |
1450 | case PERF_RECORD_SWITCH: |
1451 | case PERF_RECORD_SWITCH_CPU_WIDE: | |
1452 | return tool->context_switch(tool, event, sample, machine); | |
9aa0bfa3 SL |
1453 | case PERF_RECORD_KSYMBOL: |
1454 | return tool->ksymbol(tool, event, sample, machine); | |
45178a92 | 1455 | case PERF_RECORD_BPF_EVENT: |
3f604b5f | 1456 | return tool->bpf(tool, event, sample, machine); |
cbf41645 | 1457 | default: |
313e53b0 | 1458 | ++evlist->stats.nr_unknown_events; |
cbf41645 TG |
1459 | return -1; |
1460 | } | |
1461 | } | |
1462 | ||
c446870d AH |
1463 | static int perf_session__deliver_event(struct perf_session *session, |
1464 | union perf_event *event, | |
c446870d AH |
1465 | struct perf_tool *tool, |
1466 | u64 file_offset) | |
1467 | { | |
93d10af2 | 1468 | struct perf_sample sample; |
c446870d AH |
1469 | int ret; |
1470 | ||
93d10af2 JO |
1471 | ret = perf_evlist__parse_sample(session->evlist, event, &sample); |
1472 | if (ret) { | |
1473 | pr_err("Can't parse sample, err = %d\n", ret); | |
1474 | return ret; | |
1475 | } | |
1476 | ||
1477 | ret = auxtrace__process_event(session, event, &sample, tool); | |
c446870d AH |
1478 | if (ret < 0) |
1479 | return ret; | |
1480 | if (ret > 0) | |
1481 | return 0; | |
1482 | ||
1483 | return machines__deliver_event(&session->machines, session->evlist, | |
93d10af2 | 1484 | event, &sample, tool, file_offset); |
c446870d AH |
1485 | } |
1486 | ||
d5652d86 AH |
1487 | static s64 perf_session__process_user_event(struct perf_session *session, |
1488 | union perf_event *event, | |
d5652d86 | 1489 | u64 file_offset) |
06aae590 | 1490 | { |
d704ebda | 1491 | struct ordered_events *oe = &session->ordered_events; |
9870d780 | 1492 | struct perf_tool *tool = session->tool; |
f250b09c | 1493 | struct perf_sample sample = { .time = 0, }; |
8ceb41d7 | 1494 | int fd = perf_data__fd(session->data); |
10d0f086 ACM |
1495 | int err; |
1496 | ||
61a7773c AB |
1497 | if (event->header.type != PERF_RECORD_COMPRESSED || |
1498 | tool->compressed == perf_session__process_compressed_event_stub) | |
1499 | dump_event(session->evlist, event, file_offset, &sample); | |
06aae590 | 1500 | |
cbf41645 | 1501 | /* These events are processed right away */ |
06aae590 | 1502 | switch (event->header.type) { |
2c46dbb5 | 1503 | case PERF_RECORD_HEADER_ATTR: |
47c3d109 | 1504 | err = tool->attr(tool, event, &session->evlist); |
cfe1c414 | 1505 | if (err == 0) { |
7b56cce2 | 1506 | perf_session__set_id_hdr_size(session); |
cfe1c414 AH |
1507 | perf_session__set_comm_exec(session); |
1508 | } | |
10d0f086 | 1509 | return err; |
ffe77725 JO |
1510 | case PERF_RECORD_EVENT_UPDATE: |
1511 | return tool->event_update(tool, event, &session->evlist); | |
f67697bd JO |
1512 | case PERF_RECORD_HEADER_EVENT_TYPE: |
1513 | /* | |
1514 | * Depreceated, but we need to handle it for sake | |
1515 | * of old data files create in pipe mode. | |
1516 | */ | |
1517 | return 0; | |
9215545e TZ |
1518 | case PERF_RECORD_HEADER_TRACING_DATA: |
1519 | /* setup for reading amidst mmap */ | |
cc9784bd | 1520 | lseek(fd, file_offset, SEEK_SET); |
89f1688a | 1521 | return tool->tracing_data(session, event); |
c7929e47 | 1522 | case PERF_RECORD_HEADER_BUILD_ID: |
89f1688a | 1523 | return tool->build_id(session, event); |
d6b17beb | 1524 | case PERF_RECORD_FINISHED_ROUND: |
d704ebda | 1525 | return tool->finished_round(tool, event, oe); |
3c659eed | 1526 | case PERF_RECORD_ID_INDEX: |
89f1688a | 1527 | return tool->id_index(session, event); |
a16ac023 | 1528 | case PERF_RECORD_AUXTRACE_INFO: |
89f1688a | 1529 | return tool->auxtrace_info(session, event); |
a16ac023 AH |
1530 | case PERF_RECORD_AUXTRACE: |
1531 | /* setup for reading amidst mmap */ | |
1532 | lseek(fd, file_offset + event->header.size, SEEK_SET); | |
7336555a | 1533 | return tool->auxtrace(session, event); |
e9bf54d2 | 1534 | case PERF_RECORD_AUXTRACE_ERROR: |
85ed4729 | 1535 | perf_session__auxtrace_error_inc(session, event); |
89f1688a | 1536 | return tool->auxtrace_error(session, event); |
5f3339d2 | 1537 | case PERF_RECORD_THREAD_MAP: |
89f1688a | 1538 | return tool->thread_map(session, event); |
6640b6c2 | 1539 | case PERF_RECORD_CPU_MAP: |
89f1688a | 1540 | return tool->cpu_map(session, event); |
374fb9e3 | 1541 | case PERF_RECORD_STAT_CONFIG: |
89f1688a | 1542 | return tool->stat_config(session, event); |
d80518c9 | 1543 | case PERF_RECORD_STAT: |
89f1688a | 1544 | return tool->stat(session, event); |
2d8f0f18 | 1545 | case PERF_RECORD_STAT_ROUND: |
89f1688a | 1546 | return tool->stat_round(session, event); |
46bc29b9 AH |
1547 | case PERF_RECORD_TIME_CONV: |
1548 | session->time_conv = event->time_conv; | |
89f1688a | 1549 | return tool->time_conv(session, event); |
e9def1b2 | 1550 | case PERF_RECORD_HEADER_FEATURE: |
89f1688a | 1551 | return tool->feature(session, event); |
61a7773c AB |
1552 | case PERF_RECORD_COMPRESSED: |
1553 | err = tool->compressed(session, event, file_offset); | |
1554 | if (err) | |
1555 | dump_event(session->evlist, event, file_offset, &sample); | |
1556 | return err; | |
06aae590 | 1557 | default: |
ba74f064 | 1558 | return -EINVAL; |
06aae590 | 1559 | } |
ba74f064 TG |
1560 | } |
1561 | ||
a293829d AH |
1562 | int perf_session__deliver_synth_event(struct perf_session *session, |
1563 | union perf_event *event, | |
b7b61cbe | 1564 | struct perf_sample *sample) |
a293829d | 1565 | { |
63503dba | 1566 | struct evlist *evlist = session->evlist; |
9870d780 | 1567 | struct perf_tool *tool = session->tool; |
fa713a4e ACM |
1568 | |
1569 | events_stats__inc(&evlist->stats, event->header.type); | |
a293829d AH |
1570 | |
1571 | if (event->header.type >= PERF_RECORD_USER_TYPE_START) | |
b7b61cbe | 1572 | return perf_session__process_user_event(session, event, 0); |
a293829d | 1573 | |
fa713a4e | 1574 | return machines__deliver_event(&session->machines, evlist, event, sample, tool, 0); |
a293829d AH |
1575 | } |
1576 | ||
268fb20f JO |
1577 | static void event_swap(union perf_event *event, bool sample_id_all) |
1578 | { | |
1579 | perf_event__swap_op swap; | |
1580 | ||
1581 | swap = perf_event__swap_ops[event->header.type]; | |
1582 | if (swap) | |
1583 | swap(event, sample_id_all); | |
1584 | } | |
1585 | ||
5a52f33a AH |
1586 | int perf_session__peek_event(struct perf_session *session, off_t file_offset, |
1587 | void *buf, size_t buf_sz, | |
1588 | union perf_event **event_ptr, | |
1589 | struct perf_sample *sample) | |
1590 | { | |
1591 | union perf_event *event; | |
1592 | size_t hdr_sz, rest; | |
1593 | int fd; | |
1594 | ||
1595 | if (session->one_mmap && !session->header.needs_swap) { | |
1596 | event = file_offset - session->one_mmap_offset + | |
1597 | session->one_mmap_addr; | |
1598 | goto out_parse_sample; | |
1599 | } | |
1600 | ||
8ceb41d7 | 1601 | if (perf_data__is_pipe(session->data)) |
5a52f33a AH |
1602 | return -1; |
1603 | ||
8ceb41d7 | 1604 | fd = perf_data__fd(session->data); |
5a52f33a AH |
1605 | hdr_sz = sizeof(struct perf_event_header); |
1606 | ||
1607 | if (buf_sz < hdr_sz) | |
1608 | return -1; | |
1609 | ||
1610 | if (lseek(fd, file_offset, SEEK_SET) == (off_t)-1 || | |
554e92ed | 1611 | readn(fd, buf, hdr_sz) != (ssize_t)hdr_sz) |
5a52f33a AH |
1612 | return -1; |
1613 | ||
1614 | event = (union perf_event *)buf; | |
1615 | ||
1616 | if (session->header.needs_swap) | |
1617 | perf_event_header__bswap(&event->header); | |
1618 | ||
554e92ed | 1619 | if (event->header.size < hdr_sz || event->header.size > buf_sz) |
5a52f33a AH |
1620 | return -1; |
1621 | ||
1622 | rest = event->header.size - hdr_sz; | |
1623 | ||
554e92ed | 1624 | if (readn(fd, buf, rest) != (ssize_t)rest) |
5a52f33a AH |
1625 | return -1; |
1626 | ||
1627 | if (session->header.needs_swap) | |
1628 | event_swap(event, perf_evlist__sample_id_all(session->evlist)); | |
1629 | ||
1630 | out_parse_sample: | |
1631 | ||
1632 | if (sample && event->header.type < PERF_RECORD_USER_TYPE_START && | |
1633 | perf_evlist__parse_sample(session->evlist, event, sample)) | |
1634 | return -1; | |
1635 | ||
1636 | *event_ptr = event; | |
1637 | ||
1638 | return 0; | |
1639 | } | |
1640 | ||
d5652d86 | 1641 | static s64 perf_session__process_event(struct perf_session *session, |
b7b61cbe | 1642 | union perf_event *event, u64 file_offset) |
ba74f064 | 1643 | { |
63503dba | 1644 | struct evlist *evlist = session->evlist; |
9870d780 | 1645 | struct perf_tool *tool = session->tool; |
ba74f064 TG |
1646 | int ret; |
1647 | ||
268fb20f | 1648 | if (session->header.needs_swap) |
313e53b0 | 1649 | event_swap(event, perf_evlist__sample_id_all(evlist)); |
ba74f064 TG |
1650 | |
1651 | if (event->header.type >= PERF_RECORD_HEADER_MAX) | |
1652 | return -EINVAL; | |
1653 | ||
313e53b0 | 1654 | events_stats__inc(&evlist->stats, event->header.type); |
ba74f064 TG |
1655 | |
1656 | if (event->header.type >= PERF_RECORD_USER_TYPE_START) | |
b7b61cbe | 1657 | return perf_session__process_user_event(session, event, file_offset); |
cbf41645 | 1658 | |
0a8cb85c | 1659 | if (tool->ordered_events) { |
631e8f0a | 1660 | u64 timestamp = -1ULL; |
93d10af2 JO |
1661 | |
1662 | ret = perf_evlist__parse_sample_timestamp(evlist, event, ×tamp); | |
631e8f0a | 1663 | if (ret && ret != -1) |
93d10af2 JO |
1664 | return ret; |
1665 | ||
1666 | ret = perf_session__queue_event(session, event, timestamp, file_offset); | |
cbf41645 TG |
1667 | if (ret != -ETIME) |
1668 | return ret; | |
1669 | } | |
1670 | ||
93d10af2 | 1671 | return perf_session__deliver_event(session, event, tool, file_offset); |
06aae590 ACM |
1672 | } |
1673 | ||
316c7136 | 1674 | void perf_event_header__bswap(struct perf_event_header *hdr) |
ba21594c | 1675 | { |
316c7136 ACM |
1676 | hdr->type = bswap_32(hdr->type); |
1677 | hdr->misc = bswap_16(hdr->misc); | |
1678 | hdr->size = bswap_16(hdr->size); | |
ba21594c ACM |
1679 | } |
1680 | ||
b424eba2 ACM |
1681 | struct thread *perf_session__findnew(struct perf_session *session, pid_t pid) |
1682 | { | |
1fcb8768 | 1683 | return machine__findnew_thread(&session->machines.host, -1, pid); |
b424eba2 ACM |
1684 | } |
1685 | ||
b25756df AH |
1686 | /* |
1687 | * Threads are identified by pid and tid, and the idle task has pid == tid == 0. | |
1688 | * So here a single thread is created for that, but actually there is a separate | |
1689 | * idle task per cpu, so there should be one 'struct thread' per cpu, but there | |
1690 | * is only 1. That causes problems for some tools, requiring workarounds. For | |
1691 | * example get_idle_thread() in builtin-sched.c, or thread_stack__per_cpu(). | |
1692 | */ | |
9d8b172f | 1693 | int perf_session__register_idle_thread(struct perf_session *session) |
06aae590 | 1694 | { |
1fcb8768 | 1695 | struct thread *thread; |
9d8b172f | 1696 | int err = 0; |
06aae590 | 1697 | |
1fcb8768 | 1698 | thread = machine__findnew_thread(&session->machines.host, 0, 0); |
162f0bef | 1699 | if (thread == NULL || thread__set_comm(thread, "swapper", 0)) { |
06aae590 | 1700 | pr_err("problem inserting idle task.\n"); |
9d8b172f | 1701 | err = -1; |
06aae590 ACM |
1702 | } |
1703 | ||
f3b3614a HB |
1704 | if (thread == NULL || thread__set_namespaces(thread, 0, NULL)) { |
1705 | pr_err("problem inserting idle task.\n"); | |
1706 | err = -1; | |
1707 | } | |
1708 | ||
9d8b172f MH |
1709 | /* machine__findnew_thread() got the thread, so put it */ |
1710 | thread__put(thread); | |
1711 | return err; | |
06aae590 ACM |
1712 | } |
1713 | ||
f06149c0 WN |
1714 | static void |
1715 | perf_session__warn_order(const struct perf_session *session) | |
1716 | { | |
1717 | const struct ordered_events *oe = &session->ordered_events; | |
32dcd021 | 1718 | struct evsel *evsel; |
f06149c0 WN |
1719 | bool should_warn = true; |
1720 | ||
1721 | evlist__for_each_entry(session->evlist, evsel) { | |
1fc632ce | 1722 | if (evsel->core.attr.write_backward) |
f06149c0 WN |
1723 | should_warn = false; |
1724 | } | |
1725 | ||
1726 | if (!should_warn) | |
1727 | return; | |
1728 | if (oe->nr_unordered_events != 0) | |
1729 | ui__warning("%u out of order events recorded.\n", oe->nr_unordered_events); | |
1730 | } | |
1731 | ||
9870d780 | 1732 | static void perf_session__warn_about_errors(const struct perf_session *session) |
11095994 | 1733 | { |
9870d780 | 1734 | const struct events_stats *stats = &session->evlist->stats; |
9870d780 ACM |
1735 | |
1736 | if (session->tool->lost == perf_event__process_lost && | |
ccda068f | 1737 | stats->nr_events[PERF_RECORD_LOST] != 0) { |
7b27509f ACM |
1738 | ui__warning("Processed %d events and lost %d chunks!\n\n" |
1739 | "Check IO/CPU overload!\n\n", | |
ccda068f ACM |
1740 | stats->nr_events[0], |
1741 | stats->nr_events[PERF_RECORD_LOST]); | |
11095994 ACM |
1742 | } |
1743 | ||
c4937a91 KL |
1744 | if (session->tool->lost_samples == perf_event__process_lost_samples) { |
1745 | double drop_rate; | |
1746 | ||
1747 | drop_rate = (double)stats->total_lost_samples / | |
1748 | (double) (stats->nr_events[PERF_RECORD_SAMPLE] + stats->total_lost_samples); | |
1749 | if (drop_rate > 0.05) { | |
41a43dac | 1750 | ui__warning("Processed %" PRIu64 " samples and lost %3.2f%%!\n\n", |
c4937a91 KL |
1751 | stats->nr_events[PERF_RECORD_SAMPLE] + stats->total_lost_samples, |
1752 | drop_rate * 100.0); | |
1753 | } | |
1754 | } | |
1755 | ||
a38f48e3 AH |
1756 | if (session->tool->aux == perf_event__process_aux && |
1757 | stats->total_aux_lost != 0) { | |
1758 | ui__warning("AUX data lost %" PRIu64 " times out of %u!\n\n", | |
1759 | stats->total_aux_lost, | |
1760 | stats->nr_events[PERF_RECORD_AUX]); | |
1761 | } | |
1762 | ||
05a1f47e AS |
1763 | if (session->tool->aux == perf_event__process_aux && |
1764 | stats->total_aux_partial != 0) { | |
1765 | bool vmm_exclusive = false; | |
1766 | ||
1767 | (void)sysfs__read_bool("module/kvm_intel/parameters/vmm_exclusive", | |
1768 | &vmm_exclusive); | |
1769 | ||
1770 | ui__warning("AUX data had gaps in it %" PRIu64 " times out of %u!\n\n" | |
1771 | "Are you running a KVM guest in the background?%s\n\n", | |
1772 | stats->total_aux_partial, | |
1773 | stats->nr_events[PERF_RECORD_AUX], | |
1774 | vmm_exclusive ? | |
1775 | "\nReloading kvm_intel module with vmm_exclusive=0\n" | |
1776 | "will reduce the gaps to only guest's timeslices." : | |
1777 | ""); | |
1778 | } | |
1779 | ||
ccda068f | 1780 | if (stats->nr_unknown_events != 0) { |
11095994 ACM |
1781 | ui__warning("Found %u unknown events!\n\n" |
1782 | "Is this an older tool processing a perf.data " | |
1783 | "file generated by a more recent tool?\n\n" | |
1784 | "If that is not the case, consider " | |
1785 | "reporting to linux-kernel@vger.kernel.org.\n\n", | |
ccda068f | 1786 | stats->nr_unknown_events); |
11095994 ACM |
1787 | } |
1788 | ||
ccda068f | 1789 | if (stats->nr_unknown_id != 0) { |
9e69c210 | 1790 | ui__warning("%u samples with id not present in the header\n", |
ccda068f | 1791 | stats->nr_unknown_id); |
9e69c210 ACM |
1792 | } |
1793 | ||
ccda068f | 1794 | if (stats->nr_invalid_chains != 0) { |
75be989a ACM |
1795 | ui__warning("Found invalid callchains!\n\n" |
1796 | "%u out of %u events were discarded for this reason.\n\n" | |
1797 | "Consider reporting to linux-kernel@vger.kernel.org.\n\n", | |
ccda068f ACM |
1798 | stats->nr_invalid_chains, |
1799 | stats->nr_events[PERF_RECORD_SAMPLE]); | |
75be989a | 1800 | } |
0c095715 | 1801 | |
ccda068f | 1802 | if (stats->nr_unprocessable_samples != 0) { |
0c095715 JR |
1803 | ui__warning("%u unprocessable samples recorded.\n" |
1804 | "Do you have a KVM guest running and not using 'perf kvm'?\n", | |
ccda068f | 1805 | stats->nr_unprocessable_samples); |
0c095715 | 1806 | } |
f61ff6c0 | 1807 | |
f06149c0 | 1808 | perf_session__warn_order(session); |
85ed4729 AH |
1809 | |
1810 | events_stats__auxtrace_error_warn(stats); | |
930e6fcd KL |
1811 | |
1812 | if (stats->nr_proc_map_timeout != 0) { | |
1813 | ui__warning("%d map information files for pre-existing threads were\n" | |
1814 | "not processed, if there are samples for addresses they\n" | |
1815 | "will not be resolved, you may find out which are these\n" | |
1816 | "threads by running with -v and redirecting the output\n" | |
9d9cad76 KL |
1817 | "to a file.\n" |
1818 | "The time limit to process proc map is too short?\n" | |
1819 | "Increase it by --proc-map-timeout\n", | |
930e6fcd KL |
1820 | stats->nr_proc_map_timeout); |
1821 | } | |
11095994 ACM |
1822 | } |
1823 | ||
a5499b37 AH |
1824 | static int perf_session__flush_thread_stack(struct thread *thread, |
1825 | void *p __maybe_unused) | |
1826 | { | |
1827 | return thread_stack__flush(thread); | |
1828 | } | |
1829 | ||
1830 | static int perf_session__flush_thread_stacks(struct perf_session *session) | |
1831 | { | |
1832 | return machines__for_each_thread(&session->machines, | |
1833 | perf_session__flush_thread_stack, | |
1834 | NULL); | |
1835 | } | |
1836 | ||
8dc58101 TZ |
1837 | volatile int session_done; |
1838 | ||
cb62c6f1 AB |
1839 | static int __perf_session__process_decomp_events(struct perf_session *session); |
1840 | ||
b7b61cbe | 1841 | static int __perf_session__process_pipe_events(struct perf_session *session) |
8dc58101 | 1842 | { |
fa713a4e | 1843 | struct ordered_events *oe = &session->ordered_events; |
9870d780 | 1844 | struct perf_tool *tool = session->tool; |
8ceb41d7 | 1845 | int fd = perf_data__fd(session->data); |
444d2866 SE |
1846 | union perf_event *event; |
1847 | uint32_t size, cur_size = 0; | |
1848 | void *buf = NULL; | |
d5652d86 | 1849 | s64 skip = 0; |
8dc58101 | 1850 | u64 head; |
727ebd54 | 1851 | ssize_t err; |
8dc58101 TZ |
1852 | void *p; |
1853 | ||
45694aa7 | 1854 | perf_tool__fill_defaults(tool); |
8dc58101 TZ |
1855 | |
1856 | head = 0; | |
444d2866 SE |
1857 | cur_size = sizeof(union perf_event); |
1858 | ||
1859 | buf = malloc(cur_size); | |
1860 | if (!buf) | |
1861 | return -errno; | |
1e0d4f02 | 1862 | ordered_events__set_copy_on_queue(oe, true); |
8dc58101 | 1863 | more: |
444d2866 | 1864 | event = buf; |
cc9784bd | 1865 | err = readn(fd, event, sizeof(struct perf_event_header)); |
8dc58101 TZ |
1866 | if (err <= 0) { |
1867 | if (err == 0) | |
1868 | goto done; | |
1869 | ||
1870 | pr_err("failed to read event header\n"); | |
1871 | goto out_err; | |
1872 | } | |
1873 | ||
316c7136 | 1874 | if (session->header.needs_swap) |
444d2866 | 1875 | perf_event_header__bswap(&event->header); |
8dc58101 | 1876 | |
444d2866 | 1877 | size = event->header.size; |
27389d78 AH |
1878 | if (size < sizeof(struct perf_event_header)) { |
1879 | pr_err("bad event header size\n"); | |
1880 | goto out_err; | |
1881 | } | |
8dc58101 | 1882 | |
444d2866 SE |
1883 | if (size > cur_size) { |
1884 | void *new = realloc(buf, size); | |
1885 | if (!new) { | |
1886 | pr_err("failed to allocate memory to read event\n"); | |
1887 | goto out_err; | |
1888 | } | |
1889 | buf = new; | |
1890 | cur_size = size; | |
1891 | event = buf; | |
1892 | } | |
1893 | p = event; | |
8dc58101 TZ |
1894 | p += sizeof(struct perf_event_header); |
1895 | ||
794e43b5 | 1896 | if (size - sizeof(struct perf_event_header)) { |
cc9784bd | 1897 | err = readn(fd, p, size - sizeof(struct perf_event_header)); |
794e43b5 TZ |
1898 | if (err <= 0) { |
1899 | if (err == 0) { | |
1900 | pr_err("unexpected end of event stream\n"); | |
1901 | goto done; | |
1902 | } | |
8dc58101 | 1903 | |
794e43b5 TZ |
1904 | pr_err("failed to read event data\n"); |
1905 | goto out_err; | |
1906 | } | |
8dc58101 TZ |
1907 | } |
1908 | ||
b7b61cbe | 1909 | if ((skip = perf_session__process_event(session, event, head)) < 0) { |
9389a460 | 1910 | pr_err("%#" PRIx64 " [%#x]: failed to process type: %d\n", |
444d2866 | 1911 | head, event->header.size, event->header.type); |
9389a460 JO |
1912 | err = -EINVAL; |
1913 | goto out_err; | |
8dc58101 TZ |
1914 | } |
1915 | ||
1916 | head += size; | |
1917 | ||
8dc58101 TZ |
1918 | if (skip > 0) |
1919 | head += skip; | |
1920 | ||
cb62c6f1 AB |
1921 | err = __perf_session__process_decomp_events(session); |
1922 | if (err) | |
1923 | goto out_err; | |
1924 | ||
8dc58101 TZ |
1925 | if (!session_done()) |
1926 | goto more; | |
1927 | done: | |
8c16b649 | 1928 | /* do the final flush for ordered samples */ |
b7b61cbe | 1929 | err = ordered_events__flush(oe, OE_FLUSH__FINAL); |
c446870d AH |
1930 | if (err) |
1931 | goto out_err; | |
1932 | err = auxtrace__flush_events(session, tool); | |
a5499b37 AH |
1933 | if (err) |
1934 | goto out_err; | |
1935 | err = perf_session__flush_thread_stacks(session); | |
8dc58101 | 1936 | out_err: |
444d2866 | 1937 | free(buf); |
075ca1eb JO |
1938 | if (!tool->no_warn) |
1939 | perf_session__warn_about_errors(session); | |
adc56ed1 | 1940 | ordered_events__free(&session->ordered_events); |
c446870d | 1941 | auxtrace__free_events(session); |
8dc58101 TZ |
1942 | return err; |
1943 | } | |
1944 | ||
998bedc8 FW |
1945 | static union perf_event * |
1946 | fetch_mmaped_event(struct perf_session *session, | |
1947 | u64 head, size_t mmap_size, char *buf) | |
1948 | { | |
1949 | union perf_event *event; | |
1950 | ||
1951 | /* | |
1952 | * Ensure we have enough space remaining to read | |
1953 | * the size of the event in the headers. | |
1954 | */ | |
1955 | if (head + sizeof(event->header) > mmap_size) | |
1956 | return NULL; | |
1957 | ||
1958 | event = (union perf_event *)(buf + head); | |
1959 | ||
1960 | if (session->header.needs_swap) | |
1961 | perf_event_header__bswap(&event->header); | |
1962 | ||
27389d78 AH |
1963 | if (head + event->header.size > mmap_size) { |
1964 | /* We're not fetching the event so swap back again */ | |
1965 | if (session->header.needs_swap) | |
1966 | perf_event_header__bswap(&event->header); | |
57fc032a ACM |
1967 | pr_debug("%s: head=%#" PRIx64 " event->header_size=%#x, mmap_size=%#zx: fuzzed perf.data?\n", |
1968 | __func__, head, event->header.size, mmap_size); | |
1969 | return ERR_PTR(-EINVAL); | |
27389d78 | 1970 | } |
998bedc8 FW |
1971 | |
1972 | return event; | |
1973 | } | |
1974 | ||
cb62c6f1 AB |
1975 | static int __perf_session__process_decomp_events(struct perf_session *session) |
1976 | { | |
1977 | s64 skip; | |
1978 | u64 size, file_pos = 0; | |
1979 | struct decomp *decomp = session->decomp_last; | |
1980 | ||
1981 | if (!decomp) | |
1982 | return 0; | |
1983 | ||
1984 | while (decomp->head < decomp->size && !session_done()) { | |
1985 | union perf_event *event = fetch_mmaped_event(session, decomp->head, decomp->size, decomp->data); | |
1986 | ||
57fc032a ACM |
1987 | if (IS_ERR(event)) |
1988 | return PTR_ERR(event); | |
1989 | ||
cb62c6f1 AB |
1990 | if (!event) |
1991 | break; | |
1992 | ||
1993 | size = event->header.size; | |
1994 | ||
1995 | if (size < sizeof(struct perf_event_header) || | |
1996 | (skip = perf_session__process_event(session, event, file_pos)) < 0) { | |
1997 | pr_err("%#" PRIx64 " [%#x]: failed to process type: %d\n", | |
1998 | decomp->file_pos + decomp->head, event->header.size, event->header.type); | |
1999 | return -EINVAL; | |
2000 | } | |
2001 | ||
2002 | if (skip) | |
2003 | size += skip; | |
2004 | ||
2005 | decomp->head += size; | |
2006 | } | |
2007 | ||
2008 | return 0; | |
2009 | } | |
2010 | ||
35d48ddf DM |
2011 | /* |
2012 | * On 64bit we can mmap the data file in one go. No need for tiny mmap | |
2013 | * slices. On 32bit we use 32MB. | |
2014 | */ | |
2015 | #if BITS_PER_LONG == 64 | |
2016 | #define MMAP_SIZE ULLONG_MAX | |
2017 | #define NUM_MMAPS 1 | |
2018 | #else | |
2019 | #define MMAP_SIZE (32 * 1024 * 1024ULL) | |
2020 | #define NUM_MMAPS 128 | |
2021 | #endif | |
2022 | ||
e51f8061 JO |
2023 | struct reader; |
2024 | ||
2025 | typedef s64 (*reader_cb_t)(struct perf_session *session, | |
2026 | union perf_event *event, | |
2027 | u64 file_offset); | |
2028 | ||
82715eb1 | 2029 | struct reader { |
e51f8061 JO |
2030 | int fd; |
2031 | u64 data_size; | |
2032 | u64 data_offset; | |
2033 | reader_cb_t process; | |
82715eb1 JO |
2034 | }; |
2035 | ||
3c7b67b2 JO |
2036 | static int |
2037 | reader__process_events(struct reader *rd, struct perf_session *session, | |
2038 | struct ui_progress *prog) | |
06aae590 | 2039 | { |
3c7b67b2 | 2040 | u64 data_size = rd->data_size; |
d5652d86 | 2041 | u64 head, page_offset, file_offset, file_pos, size; |
3c7b67b2 | 2042 | int err = 0, mmap_prot, mmap_flags, map_idx = 0; |
0c1fe6b2 | 2043 | size_t mmap_size; |
35d48ddf | 2044 | char *buf, *mmaps[NUM_MMAPS]; |
8115d60c | 2045 | union perf_event *event; |
d5652d86 | 2046 | s64 skip; |
0331ee0c | 2047 | |
3c7b67b2 | 2048 | page_offset = page_size * (rd->data_offset / page_size); |
0331ee0c | 2049 | file_offset = page_offset; |
3c7b67b2 | 2050 | head = rd->data_offset - page_offset; |
06aae590 | 2051 | |
3c7b67b2 | 2052 | ui_progress__init_size(prog, data_size, "Processing events..."); |
381c02f6 | 2053 | |
3c7b67b2 | 2054 | data_size += rd->data_offset; |
55b44629 | 2055 | |
35d48ddf | 2056 | mmap_size = MMAP_SIZE; |
4f5a473d JO |
2057 | if (mmap_size > data_size) { |
2058 | mmap_size = data_size; | |
919d86d3 AH |
2059 | session->one_mmap = true; |
2060 | } | |
55b44629 | 2061 | |
fe174207 TG |
2062 | memset(mmaps, 0, sizeof(mmaps)); |
2063 | ||
ba21594c ACM |
2064 | mmap_prot = PROT_READ; |
2065 | mmap_flags = MAP_SHARED; | |
2066 | ||
0331ee0c | 2067 | if (session->header.needs_swap) { |
ba21594c ACM |
2068 | mmap_prot |= PROT_WRITE; |
2069 | mmap_flags = MAP_PRIVATE; | |
2070 | } | |
06aae590 | 2071 | remap: |
3c7b67b2 | 2072 | buf = mmap(NULL, mmap_size, mmap_prot, mmap_flags, rd->fd, |
55b44629 | 2073 | file_offset); |
06aae590 ACM |
2074 | if (buf == MAP_FAILED) { |
2075 | pr_err("failed to mmap file\n"); | |
2076 | err = -errno; | |
3c7b67b2 | 2077 | goto out; |
06aae590 | 2078 | } |
fe174207 TG |
2079 | mmaps[map_idx] = buf; |
2080 | map_idx = (map_idx + 1) & (ARRAY_SIZE(mmaps) - 1); | |
d6513281 | 2081 | file_pos = file_offset + head; |
919d86d3 AH |
2082 | if (session->one_mmap) { |
2083 | session->one_mmap_addr = buf; | |
2084 | session->one_mmap_offset = file_offset; | |
2085 | } | |
06aae590 ACM |
2086 | |
2087 | more: | |
998bedc8 | 2088 | event = fetch_mmaped_event(session, head, mmap_size, buf); |
57fc032a ACM |
2089 | if (IS_ERR(event)) |
2090 | return PTR_ERR(event); | |
2091 | ||
998bedc8 | 2092 | if (!event) { |
fe174207 TG |
2093 | if (mmaps[map_idx]) { |
2094 | munmap(mmaps[map_idx], mmap_size); | |
2095 | mmaps[map_idx] = NULL; | |
2096 | } | |
06aae590 | 2097 | |
0331ee0c TG |
2098 | page_offset = page_size * (head / page_size); |
2099 | file_offset += page_offset; | |
2100 | head -= page_offset; | |
06aae590 ACM |
2101 | goto remap; |
2102 | } | |
2103 | ||
2104 | size = event->header.size; | |
2105 | ||
167e418f TR |
2106 | skip = -EINVAL; |
2107 | ||
27389d78 | 2108 | if (size < sizeof(struct perf_event_header) || |
e51f8061 | 2109 | (skip = rd->process(session, event, file_pos)) < 0) { |
167e418f | 2110 | pr_err("%#" PRIx64 " [%#x]: failed to process type: %d [%s]\n", |
9389a460 | 2111 | file_offset + head, event->header.size, |
167e418f TR |
2112 | event->header.type, strerror(-skip)); |
2113 | err = skip; | |
3c7b67b2 | 2114 | goto out; |
06aae590 ACM |
2115 | } |
2116 | ||
6f917c70 AH |
2117 | if (skip) |
2118 | size += skip; | |
2119 | ||
06aae590 | 2120 | head += size; |
d6513281 | 2121 | file_pos += size; |
06aae590 | 2122 | |
cb62c6f1 AB |
2123 | err = __perf_session__process_decomp_events(session); |
2124 | if (err) | |
2125 | goto out; | |
2126 | ||
3c7b67b2 | 2127 | ui_progress__update(prog, size); |
55b44629 | 2128 | |
33e940a2 | 2129 | if (session_done()) |
8c16b649 | 2130 | goto out; |
33e940a2 | 2131 | |
4f5a473d | 2132 | if (file_pos < data_size) |
06aae590 | 2133 | goto more; |
d6513281 | 2134 | |
8c16b649 | 2135 | out: |
3c7b67b2 JO |
2136 | return err; |
2137 | } | |
2138 | ||
e51f8061 JO |
2139 | static s64 process_simple(struct perf_session *session, |
2140 | union perf_event *event, | |
2141 | u64 file_offset) | |
2142 | { | |
2143 | return perf_session__process_event(session, event, file_offset); | |
2144 | } | |
2145 | ||
3c7b67b2 JO |
2146 | static int __perf_session__process_events(struct perf_session *session) |
2147 | { | |
2148 | struct reader rd = { | |
2149 | .fd = perf_data__fd(session->data), | |
2150 | .data_size = session->header.data_size, | |
2151 | .data_offset = session->header.data_offset, | |
e51f8061 | 2152 | .process = process_simple, |
3c7b67b2 JO |
2153 | }; |
2154 | struct ordered_events *oe = &session->ordered_events; | |
2155 | struct perf_tool *tool = session->tool; | |
2156 | struct ui_progress prog; | |
2157 | int err; | |
2158 | ||
2159 | perf_tool__fill_defaults(tool); | |
2160 | ||
2161 | if (rd.data_size == 0) | |
2162 | return -1; | |
2163 | ||
2164 | ui_progress__init_size(&prog, rd.data_size, "Processing events..."); | |
2165 | ||
2166 | err = reader__process_events(&rd, session, &prog); | |
2167 | if (err) | |
2168 | goto out_err; | |
c61e52ee | 2169 | /* do the final flush for ordered samples */ |
b7b61cbe | 2170 | err = ordered_events__flush(oe, OE_FLUSH__FINAL); |
c446870d AH |
2171 | if (err) |
2172 | goto out_err; | |
2173 | err = auxtrace__flush_events(session, tool); | |
a5499b37 AH |
2174 | if (err) |
2175 | goto out_err; | |
2176 | err = perf_session__flush_thread_stacks(session); | |
06aae590 | 2177 | out_err: |
a5580f3e | 2178 | ui_progress__finish(); |
075ca1eb JO |
2179 | if (!tool->no_warn) |
2180 | perf_session__warn_about_errors(session); | |
b26dc730 WN |
2181 | /* |
2182 | * We may switching perf.data output, make ordered_events | |
2183 | * reusable. | |
2184 | */ | |
2185 | ordered_events__reinit(&session->ordered_events); | |
c446870d | 2186 | auxtrace__free_events(session); |
919d86d3 | 2187 | session->one_mmap = false; |
06aae590 ACM |
2188 | return err; |
2189 | } | |
27295592 | 2190 | |
b7b61cbe | 2191 | int perf_session__process_events(struct perf_session *session) |
6122e4e4 | 2192 | { |
9d8b172f | 2193 | if (perf_session__register_idle_thread(session) < 0) |
6122e4e4 ACM |
2194 | return -ENOMEM; |
2195 | ||
7ba4da10 JO |
2196 | if (perf_data__is_pipe(session->data)) |
2197 | return __perf_session__process_pipe_events(session); | |
88ca895d | 2198 | |
7ba4da10 | 2199 | return __perf_session__process_events(session); |
6122e4e4 ACM |
2200 | } |
2201 | ||
7f3be652 | 2202 | bool perf_session__has_traces(struct perf_session *session, const char *msg) |
27295592 | 2203 | { |
32dcd021 | 2204 | struct evsel *evsel; |
93ea01c2 | 2205 | |
e5cadb93 | 2206 | evlist__for_each_entry(session->evlist, evsel) { |
1fc632ce | 2207 | if (evsel->core.attr.type == PERF_TYPE_TRACEPOINT) |
93ea01c2 | 2208 | return true; |
27295592 ACM |
2209 | } |
2210 | ||
93ea01c2 DA |
2211 | pr_err("No trace sample to read. Did you call 'perf %s'?\n", msg); |
2212 | return false; | |
27295592 | 2213 | } |
56b03f3c | 2214 | |
3183f8ca | 2215 | int map__set_kallsyms_ref_reloc_sym(struct map *map, const char *symbol_name, u64 addr) |
56b03f3c ACM |
2216 | { |
2217 | char *bracket; | |
a1645ce1 | 2218 | struct ref_reloc_sym *ref; |
3183f8ca | 2219 | struct kmap *kmap; |
a1645ce1 ZY |
2220 | |
2221 | ref = zalloc(sizeof(struct ref_reloc_sym)); | |
2222 | if (ref == NULL) | |
2223 | return -ENOMEM; | |
56b03f3c | 2224 | |
a1645ce1 ZY |
2225 | ref->name = strdup(symbol_name); |
2226 | if (ref->name == NULL) { | |
2227 | free(ref); | |
56b03f3c | 2228 | return -ENOMEM; |
a1645ce1 | 2229 | } |
56b03f3c | 2230 | |
a1645ce1 | 2231 | bracket = strchr(ref->name, ']'); |
56b03f3c ACM |
2232 | if (bracket) |
2233 | *bracket = '\0'; | |
2234 | ||
a1645ce1 | 2235 | ref->addr = addr; |
9de89fe7 | 2236 | |
3183f8ca ACM |
2237 | kmap = map__kmap(map); |
2238 | if (kmap) | |
a1645ce1 | 2239 | kmap->ref_reloc_sym = ref; |
9de89fe7 | 2240 | |
56b03f3c ACM |
2241 | return 0; |
2242 | } | |
1f626bc3 | 2243 | |
316c7136 | 2244 | size_t perf_session__fprintf_dsos(struct perf_session *session, FILE *fp) |
1f626bc3 | 2245 | { |
316c7136 | 2246 | return machines__fprintf_dsos(&session->machines, fp); |
1f626bc3 | 2247 | } |
f869097e | 2248 | |
316c7136 | 2249 | size_t perf_session__fprintf_dsos_buildid(struct perf_session *session, FILE *fp, |
417c2ff6 | 2250 | bool (skip)(struct dso *dso, int parm), int parm) |
f869097e | 2251 | { |
316c7136 | 2252 | return machines__fprintf_dsos_buildid(&session->machines, fp, skip, parm); |
f869097e | 2253 | } |
e248de33 ACM |
2254 | |
2255 | size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp) | |
2256 | { | |
c446870d AH |
2257 | size_t ret; |
2258 | const char *msg = ""; | |
2259 | ||
2260 | if (perf_header__has_feat(&session->header, HEADER_AUXTRACE)) | |
2261 | msg = " (excludes AUX area (e.g. instruction trace) decoded / synthesized events)"; | |
2262 | ||
fe692ac8 | 2263 | ret = fprintf(fp, "\nAggregated stats:%s\n", msg); |
e248de33 | 2264 | |
75be989a | 2265 | ret += events_stats__fprintf(&session->evlist->stats, fp); |
e248de33 ACM |
2266 | return ret; |
2267 | } | |
c0230b2b | 2268 | |
b424eba2 ACM |
2269 | size_t perf_session__fprintf(struct perf_session *session, FILE *fp) |
2270 | { | |
2271 | /* | |
2272 | * FIXME: Here we have to actually print all the machines in this | |
2273 | * session, not just the host... | |
2274 | */ | |
876650e6 | 2275 | return machine__fprintf(&session->machines.host, fp); |
b424eba2 ACM |
2276 | } |
2277 | ||
32dcd021 | 2278 | struct evsel *perf_session__find_first_evtype(struct perf_session *session, |
9cbdb702 DA |
2279 | unsigned int type) |
2280 | { | |
32dcd021 | 2281 | struct evsel *pos; |
9cbdb702 | 2282 | |
e5cadb93 | 2283 | evlist__for_each_entry(session->evlist, pos) { |
1fc632ce | 2284 | if (pos->core.attr.type == type) |
9cbdb702 DA |
2285 | return pos; |
2286 | } | |
2287 | return NULL; | |
2288 | } | |
2289 | ||
5d67be97 AB |
2290 | int perf_session__cpu_bitmap(struct perf_session *session, |
2291 | const char *cpu_list, unsigned long *cpu_bitmap) | |
2292 | { | |
8bac41cb | 2293 | int i, err = -1; |
f854839b | 2294 | struct perf_cpu_map *map; |
5d67be97 AB |
2295 | |
2296 | for (i = 0; i < PERF_TYPE_MAX; ++i) { | |
32dcd021 | 2297 | struct evsel *evsel; |
5d67be97 AB |
2298 | |
2299 | evsel = perf_session__find_first_evtype(session, i); | |
2300 | if (!evsel) | |
2301 | continue; | |
2302 | ||
1fc632ce | 2303 | if (!(evsel->core.attr.sample_type & PERF_SAMPLE_CPU)) { |
5d67be97 | 2304 | pr_err("File does not contain CPU events. " |
30795467 | 2305 | "Remove -C option to proceed.\n"); |
5d67be97 AB |
2306 | return -1; |
2307 | } | |
2308 | } | |
2309 | ||
9c3516d1 | 2310 | map = perf_cpu_map__new(cpu_list); |
47fbe53b DA |
2311 | if (map == NULL) { |
2312 | pr_err("Invalid cpu_list\n"); | |
2313 | return -1; | |
2314 | } | |
5d67be97 AB |
2315 | |
2316 | for (i = 0; i < map->nr; i++) { | |
2317 | int cpu = map->map[i]; | |
2318 | ||
2319 | if (cpu >= MAX_NR_CPUS) { | |
2320 | pr_err("Requested CPU %d too large. " | |
2321 | "Consider raising MAX_NR_CPUS\n", cpu); | |
8bac41cb | 2322 | goto out_delete_map; |
5d67be97 AB |
2323 | } |
2324 | ||
2325 | set_bit(cpu, cpu_bitmap); | |
2326 | } | |
2327 | ||
8bac41cb SF |
2328 | err = 0; |
2329 | ||
2330 | out_delete_map: | |
38f01d8d | 2331 | perf_cpu_map__put(map); |
8bac41cb | 2332 | return err; |
5d67be97 | 2333 | } |
fbe96f29 SE |
2334 | |
2335 | void perf_session__fprintf_info(struct perf_session *session, FILE *fp, | |
2336 | bool full) | |
2337 | { | |
fbe96f29 SE |
2338 | if (session == NULL || fp == NULL) |
2339 | return; | |
2340 | ||
fbe96f29 | 2341 | fprintf(fp, "# ========\n"); |
fbe96f29 SE |
2342 | perf_header__fprintf_info(session, fp, full); |
2343 | fprintf(fp, "# ========\n#\n"); | |
2344 | } | |
da378962 ACM |
2345 | |
2346 | ||
2347 | int __perf_session__set_tracepoints_handlers(struct perf_session *session, | |
32dcd021 | 2348 | const struct evsel_str_handler *assocs, |
da378962 ACM |
2349 | size_t nr_assocs) |
2350 | { | |
32dcd021 | 2351 | struct evsel *evsel; |
da378962 ACM |
2352 | size_t i; |
2353 | int err; | |
2354 | ||
2355 | for (i = 0; i < nr_assocs; i++) { | |
ccf53eac ACM |
2356 | /* |
2357 | * Adding a handler for an event not in the session, | |
2358 | * just ignore it. | |
2359 | */ | |
2360 | evsel = perf_evlist__find_tracepoint_by_name(session->evlist, assocs[i].name); | |
da378962 | 2361 | if (evsel == NULL) |
ccf53eac | 2362 | continue; |
da378962 ACM |
2363 | |
2364 | err = -EEXIST; | |
744a9719 | 2365 | if (evsel->handler != NULL) |
ccf53eac | 2366 | goto out; |
744a9719 | 2367 | evsel->handler = assocs[i].handler; |
da378962 ACM |
2368 | } |
2369 | ||
2370 | err = 0; | |
2371 | out: | |
2372 | return err; | |
da378962 | 2373 | } |
3c659eed | 2374 | |
89f1688a JO |
2375 | int perf_event__process_id_index(struct perf_session *session, |
2376 | union perf_event *event) | |
3c659eed | 2377 | { |
63503dba | 2378 | struct evlist *evlist = session->evlist; |
3c659eed AH |
2379 | struct id_index_event *ie = &event->id_index; |
2380 | size_t i, nr, max_nr; | |
2381 | ||
2382 | max_nr = (ie->header.size - sizeof(struct id_index_event)) / | |
2383 | sizeof(struct id_index_entry); | |
2384 | nr = ie->nr; | |
2385 | if (nr > max_nr) | |
2386 | return -EINVAL; | |
2387 | ||
2388 | if (dump_trace) | |
2389 | fprintf(stdout, " nr: %zu\n", nr); | |
2390 | ||
2391 | for (i = 0; i < nr; i++) { | |
2392 | struct id_index_entry *e = &ie->entries[i]; | |
2393 | struct perf_sample_id *sid; | |
2394 | ||
2395 | if (dump_trace) { | |
2396 | fprintf(stdout, " ... id: %"PRIu64, e->id); | |
2397 | fprintf(stdout, " idx: %"PRIu64, e->idx); | |
2398 | fprintf(stdout, " cpu: %"PRId64, e->cpu); | |
2399 | fprintf(stdout, " tid: %"PRId64"\n", e->tid); | |
2400 | } | |
2401 | ||
2402 | sid = perf_evlist__id2sid(evlist, e->id); | |
2403 | if (!sid) | |
2404 | return -ENOENT; | |
2405 | sid->idx = e->idx; | |
2406 | sid->cpu = e->cpu; | |
2407 | sid->tid = e->tid; | |
2408 | } | |
2409 | return 0; | |
2410 | } | |
2411 | ||
2412 | int perf_event__synthesize_id_index(struct perf_tool *tool, | |
2413 | perf_event__handler_t process, | |
63503dba | 2414 | struct evlist *evlist, |
3c659eed AH |
2415 | struct machine *machine) |
2416 | { | |
2417 | union perf_event *ev; | |
32dcd021 | 2418 | struct evsel *evsel; |
3c659eed AH |
2419 | size_t nr = 0, i = 0, sz, max_nr, n; |
2420 | int err; | |
2421 | ||
2422 | pr_debug2("Synthesizing id index\n"); | |
2423 | ||
2424 | max_nr = (UINT16_MAX - sizeof(struct id_index_event)) / | |
2425 | sizeof(struct id_index_entry); | |
2426 | ||
e5cadb93 | 2427 | evlist__for_each_entry(evlist, evsel) |
3c659eed AH |
2428 | nr += evsel->ids; |
2429 | ||
2430 | n = nr > max_nr ? max_nr : nr; | |
2431 | sz = sizeof(struct id_index_event) + n * sizeof(struct id_index_entry); | |
2432 | ev = zalloc(sz); | |
2433 | if (!ev) | |
2434 | return -ENOMEM; | |
2435 | ||
2436 | ev->id_index.header.type = PERF_RECORD_ID_INDEX; | |
2437 | ev->id_index.header.size = sz; | |
2438 | ev->id_index.nr = n; | |
2439 | ||
e5cadb93 | 2440 | evlist__for_each_entry(evlist, evsel) { |
3c659eed AH |
2441 | u32 j; |
2442 | ||
2443 | for (j = 0; j < evsel->ids; j++) { | |
2444 | struct id_index_entry *e; | |
2445 | struct perf_sample_id *sid; | |
2446 | ||
2447 | if (i >= n) { | |
2448 | err = process(tool, ev, NULL, machine); | |
2449 | if (err) | |
2450 | goto out_err; | |
2451 | nr -= n; | |
2452 | i = 0; | |
2453 | } | |
2454 | ||
2455 | e = &ev->id_index.entries[i++]; | |
2456 | ||
2457 | e->id = evsel->id[j]; | |
2458 | ||
2459 | sid = perf_evlist__id2sid(evlist, e->id); | |
2460 | if (!sid) { | |
2461 | free(ev); | |
2462 | return -ENOENT; | |
2463 | } | |
2464 | ||
2465 | e->idx = sid->idx; | |
2466 | e->cpu = sid->cpu; | |
2467 | e->tid = sid->tid; | |
2468 | } | |
2469 | } | |
2470 | ||
2471 | sz = sizeof(struct id_index_event) + nr * sizeof(struct id_index_entry); | |
2472 | ev->id_index.header.size = sz; | |
2473 | ev->id_index.nr = nr; | |
2474 | ||
2475 | err = process(tool, ev, NULL, machine); | |
2476 | out_err: | |
2477 | free(ev); | |
2478 | ||
2479 | return err; | |
2480 | } |