Commit | Line | Data |
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f8a95309 ACM |
1 | /* |
2 | * Copyright (C) 2011, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com> | |
3 | * | |
4 | * Parts came from builtin-{top,stat,record}.c, see those files for further | |
5 | * copyright notes. | |
6 | * | |
7 | * Released under the GPL v2. (and only v2, not any later version) | |
8 | */ | |
9 | ||
936be503 | 10 | #include <byteswap.h> |
0f6a3015 | 11 | #include <linux/bitops.h> |
936be503 | 12 | #include "asm/bug.h" |
efd2b924 | 13 | #include "debugfs.h" |
5555ded4 | 14 | #include "event-parse.h" |
69aad6f1 | 15 | #include "evsel.h" |
70082dd9 | 16 | #include "evlist.h" |
69aad6f1 | 17 | #include "util.h" |
86bd5e86 | 18 | #include "cpumap.h" |
fd78260b | 19 | #include "thread_map.h" |
12864b31 | 20 | #include "target.h" |
287e74aa | 21 | #include "../../../include/linux/hw_breakpoint.h" |
26d33022 JO |
22 | #include "../../include/linux/perf_event.h" |
23 | #include "perf_regs.h" | |
69aad6f1 | 24 | |
c52b12ed ACM |
25 | #define FD(e, x, y) (*(int *)xyarray__entry(e->fd, x, y)) |
26 | ||
bde09467 | 27 | static int __perf_evsel__sample_size(u64 sample_type) |
c2a70653 ACM |
28 | { |
29 | u64 mask = sample_type & PERF_SAMPLE_MASK; | |
30 | int size = 0; | |
31 | int i; | |
32 | ||
33 | for (i = 0; i < 64; i++) { | |
34 | if (mask & (1ULL << i)) | |
35 | size++; | |
36 | } | |
37 | ||
38 | size *= sizeof(u64); | |
39 | ||
40 | return size; | |
41 | } | |
42 | ||
4bf9ce1b | 43 | void hists__init(struct hists *hists) |
0e2a5f10 ACM |
44 | { |
45 | memset(hists, 0, sizeof(*hists)); | |
46 | hists->entries_in_array[0] = hists->entries_in_array[1] = RB_ROOT; | |
47 | hists->entries_in = &hists->entries_in_array[0]; | |
48 | hists->entries_collapsed = RB_ROOT; | |
49 | hists->entries = RB_ROOT; | |
50 | pthread_mutex_init(&hists->lock, NULL); | |
51 | } | |
52 | ||
ef1d1af2 ACM |
53 | void perf_evsel__init(struct perf_evsel *evsel, |
54 | struct perf_event_attr *attr, int idx) | |
55 | { | |
56 | evsel->idx = idx; | |
57 | evsel->attr = *attr; | |
58 | INIT_LIST_HEAD(&evsel->node); | |
1980c2eb | 59 | hists__init(&evsel->hists); |
bde09467 | 60 | evsel->sample_size = __perf_evsel__sample_size(attr->sample_type); |
ef1d1af2 ACM |
61 | } |
62 | ||
23a2f3ab | 63 | struct perf_evsel *perf_evsel__new(struct perf_event_attr *attr, int idx) |
69aad6f1 ACM |
64 | { |
65 | struct perf_evsel *evsel = zalloc(sizeof(*evsel)); | |
66 | ||
ef1d1af2 ACM |
67 | if (evsel != NULL) |
68 | perf_evsel__init(evsel, attr, idx); | |
69aad6f1 ACM |
69 | |
70 | return evsel; | |
71 | } | |
72 | ||
efd2b924 ACM |
73 | static struct event_format *event_format__new(const char *sys, const char *name) |
74 | { | |
75 | int fd, n; | |
76 | char *filename; | |
77 | void *bf = NULL, *nbf; | |
78 | size_t size = 0, alloc_size = 0; | |
79 | struct event_format *format = NULL; | |
80 | ||
81 | if (asprintf(&filename, "%s/%s/%s/format", tracing_events_path, sys, name) < 0) | |
82 | goto out; | |
83 | ||
84 | fd = open(filename, O_RDONLY); | |
85 | if (fd < 0) | |
86 | goto out_free_filename; | |
87 | ||
88 | do { | |
89 | if (size == alloc_size) { | |
90 | alloc_size += BUFSIZ; | |
91 | nbf = realloc(bf, alloc_size); | |
92 | if (nbf == NULL) | |
93 | goto out_free_bf; | |
94 | bf = nbf; | |
95 | } | |
96 | ||
97 | n = read(fd, bf + size, BUFSIZ); | |
98 | if (n < 0) | |
99 | goto out_free_bf; | |
100 | size += n; | |
101 | } while (n > 0); | |
102 | ||
103 | pevent_parse_format(&format, bf, size, sys); | |
104 | ||
105 | out_free_bf: | |
106 | free(bf); | |
107 | close(fd); | |
108 | out_free_filename: | |
109 | free(filename); | |
110 | out: | |
111 | return format; | |
112 | } | |
113 | ||
114 | struct perf_evsel *perf_evsel__newtp(const char *sys, const char *name, int idx) | |
115 | { | |
116 | struct perf_evsel *evsel = zalloc(sizeof(*evsel)); | |
117 | ||
118 | if (evsel != NULL) { | |
119 | struct perf_event_attr attr = { | |
0b80f8b3 ACM |
120 | .type = PERF_TYPE_TRACEPOINT, |
121 | .sample_type = (PERF_SAMPLE_RAW | PERF_SAMPLE_TIME | | |
122 | PERF_SAMPLE_CPU | PERF_SAMPLE_PERIOD), | |
efd2b924 ACM |
123 | }; |
124 | ||
125 | evsel->tp_format = event_format__new(sys, name); | |
126 | if (evsel->tp_format == NULL) | |
127 | goto out_free; | |
128 | ||
0b80f8b3 | 129 | event_attr_init(&attr); |
efd2b924 | 130 | attr.config = evsel->tp_format->id; |
0b80f8b3 | 131 | attr.sample_period = 1; |
efd2b924 ACM |
132 | perf_evsel__init(evsel, &attr, idx); |
133 | evsel->name = evsel->tp_format->name; | |
134 | } | |
135 | ||
136 | return evsel; | |
137 | ||
138 | out_free: | |
139 | free(evsel); | |
140 | return NULL; | |
141 | } | |
142 | ||
8ad7013b | 143 | const char *perf_evsel__hw_names[PERF_COUNT_HW_MAX] = { |
c410431c ACM |
144 | "cycles", |
145 | "instructions", | |
146 | "cache-references", | |
147 | "cache-misses", | |
148 | "branches", | |
149 | "branch-misses", | |
150 | "bus-cycles", | |
151 | "stalled-cycles-frontend", | |
152 | "stalled-cycles-backend", | |
153 | "ref-cycles", | |
154 | }; | |
155 | ||
dd4f5223 | 156 | static const char *__perf_evsel__hw_name(u64 config) |
c410431c ACM |
157 | { |
158 | if (config < PERF_COUNT_HW_MAX && perf_evsel__hw_names[config]) | |
159 | return perf_evsel__hw_names[config]; | |
160 | ||
161 | return "unknown-hardware"; | |
162 | } | |
163 | ||
27f18617 | 164 | static int perf_evsel__add_modifiers(struct perf_evsel *evsel, char *bf, size_t size) |
c410431c | 165 | { |
27f18617 | 166 | int colon = 0, r = 0; |
c410431c | 167 | struct perf_event_attr *attr = &evsel->attr; |
c410431c ACM |
168 | bool exclude_guest_default = false; |
169 | ||
170 | #define MOD_PRINT(context, mod) do { \ | |
171 | if (!attr->exclude_##context) { \ | |
27f18617 | 172 | if (!colon) colon = ++r; \ |
c410431c ACM |
173 | r += scnprintf(bf + r, size - r, "%c", mod); \ |
174 | } } while(0) | |
175 | ||
176 | if (attr->exclude_kernel || attr->exclude_user || attr->exclude_hv) { | |
177 | MOD_PRINT(kernel, 'k'); | |
178 | MOD_PRINT(user, 'u'); | |
179 | MOD_PRINT(hv, 'h'); | |
180 | exclude_guest_default = true; | |
181 | } | |
182 | ||
183 | if (attr->precise_ip) { | |
184 | if (!colon) | |
27f18617 | 185 | colon = ++r; |
c410431c ACM |
186 | r += scnprintf(bf + r, size - r, "%.*s", attr->precise_ip, "ppp"); |
187 | exclude_guest_default = true; | |
188 | } | |
189 | ||
190 | if (attr->exclude_host || attr->exclude_guest == exclude_guest_default) { | |
191 | MOD_PRINT(host, 'H'); | |
192 | MOD_PRINT(guest, 'G'); | |
193 | } | |
194 | #undef MOD_PRINT | |
195 | if (colon) | |
27f18617 | 196 | bf[colon - 1] = ':'; |
c410431c ACM |
197 | return r; |
198 | } | |
199 | ||
27f18617 ACM |
200 | static int perf_evsel__hw_name(struct perf_evsel *evsel, char *bf, size_t size) |
201 | { | |
202 | int r = scnprintf(bf, size, "%s", __perf_evsel__hw_name(evsel->attr.config)); | |
203 | return r + perf_evsel__add_modifiers(evsel, bf + r, size - r); | |
204 | } | |
205 | ||
8ad7013b | 206 | const char *perf_evsel__sw_names[PERF_COUNT_SW_MAX] = { |
335c2f5d ACM |
207 | "cpu-clock", |
208 | "task-clock", | |
209 | "page-faults", | |
210 | "context-switches", | |
8ad7013b | 211 | "cpu-migrations", |
335c2f5d ACM |
212 | "minor-faults", |
213 | "major-faults", | |
214 | "alignment-faults", | |
215 | "emulation-faults", | |
216 | }; | |
217 | ||
dd4f5223 | 218 | static const char *__perf_evsel__sw_name(u64 config) |
335c2f5d ACM |
219 | { |
220 | if (config < PERF_COUNT_SW_MAX && perf_evsel__sw_names[config]) | |
221 | return perf_evsel__sw_names[config]; | |
222 | return "unknown-software"; | |
223 | } | |
224 | ||
225 | static int perf_evsel__sw_name(struct perf_evsel *evsel, char *bf, size_t size) | |
226 | { | |
227 | int r = scnprintf(bf, size, "%s", __perf_evsel__sw_name(evsel->attr.config)); | |
228 | return r + perf_evsel__add_modifiers(evsel, bf + r, size - r); | |
229 | } | |
230 | ||
287e74aa JO |
231 | static int __perf_evsel__bp_name(char *bf, size_t size, u64 addr, u64 type) |
232 | { | |
233 | int r; | |
234 | ||
235 | r = scnprintf(bf, size, "mem:0x%" PRIx64 ":", addr); | |
236 | ||
237 | if (type & HW_BREAKPOINT_R) | |
238 | r += scnprintf(bf + r, size - r, "r"); | |
239 | ||
240 | if (type & HW_BREAKPOINT_W) | |
241 | r += scnprintf(bf + r, size - r, "w"); | |
242 | ||
243 | if (type & HW_BREAKPOINT_X) | |
244 | r += scnprintf(bf + r, size - r, "x"); | |
245 | ||
246 | return r; | |
247 | } | |
248 | ||
249 | static int perf_evsel__bp_name(struct perf_evsel *evsel, char *bf, size_t size) | |
250 | { | |
251 | struct perf_event_attr *attr = &evsel->attr; | |
252 | int r = __perf_evsel__bp_name(bf, size, attr->bp_addr, attr->bp_type); | |
253 | return r + perf_evsel__add_modifiers(evsel, bf + r, size - r); | |
254 | } | |
255 | ||
0b668bc9 ACM |
256 | const char *perf_evsel__hw_cache[PERF_COUNT_HW_CACHE_MAX] |
257 | [PERF_EVSEL__MAX_ALIASES] = { | |
258 | { "L1-dcache", "l1-d", "l1d", "L1-data", }, | |
259 | { "L1-icache", "l1-i", "l1i", "L1-instruction", }, | |
260 | { "LLC", "L2", }, | |
261 | { "dTLB", "d-tlb", "Data-TLB", }, | |
262 | { "iTLB", "i-tlb", "Instruction-TLB", }, | |
263 | { "branch", "branches", "bpu", "btb", "bpc", }, | |
264 | { "node", }, | |
265 | }; | |
266 | ||
267 | const char *perf_evsel__hw_cache_op[PERF_COUNT_HW_CACHE_OP_MAX] | |
268 | [PERF_EVSEL__MAX_ALIASES] = { | |
269 | { "load", "loads", "read", }, | |
270 | { "store", "stores", "write", }, | |
271 | { "prefetch", "prefetches", "speculative-read", "speculative-load", }, | |
272 | }; | |
273 | ||
274 | const char *perf_evsel__hw_cache_result[PERF_COUNT_HW_CACHE_RESULT_MAX] | |
275 | [PERF_EVSEL__MAX_ALIASES] = { | |
276 | { "refs", "Reference", "ops", "access", }, | |
277 | { "misses", "miss", }, | |
278 | }; | |
279 | ||
280 | #define C(x) PERF_COUNT_HW_CACHE_##x | |
281 | #define CACHE_READ (1 << C(OP_READ)) | |
282 | #define CACHE_WRITE (1 << C(OP_WRITE)) | |
283 | #define CACHE_PREFETCH (1 << C(OP_PREFETCH)) | |
284 | #define COP(x) (1 << x) | |
285 | ||
286 | /* | |
287 | * cache operartion stat | |
288 | * L1I : Read and prefetch only | |
289 | * ITLB and BPU : Read-only | |
290 | */ | |
291 | static unsigned long perf_evsel__hw_cache_stat[C(MAX)] = { | |
292 | [C(L1D)] = (CACHE_READ | CACHE_WRITE | CACHE_PREFETCH), | |
293 | [C(L1I)] = (CACHE_READ | CACHE_PREFETCH), | |
294 | [C(LL)] = (CACHE_READ | CACHE_WRITE | CACHE_PREFETCH), | |
295 | [C(DTLB)] = (CACHE_READ | CACHE_WRITE | CACHE_PREFETCH), | |
296 | [C(ITLB)] = (CACHE_READ), | |
297 | [C(BPU)] = (CACHE_READ), | |
298 | [C(NODE)] = (CACHE_READ | CACHE_WRITE | CACHE_PREFETCH), | |
299 | }; | |
300 | ||
301 | bool perf_evsel__is_cache_op_valid(u8 type, u8 op) | |
302 | { | |
303 | if (perf_evsel__hw_cache_stat[type] & COP(op)) | |
304 | return true; /* valid */ | |
305 | else | |
306 | return false; /* invalid */ | |
307 | } | |
308 | ||
309 | int __perf_evsel__hw_cache_type_op_res_name(u8 type, u8 op, u8 result, | |
310 | char *bf, size_t size) | |
311 | { | |
312 | if (result) { | |
313 | return scnprintf(bf, size, "%s-%s-%s", perf_evsel__hw_cache[type][0], | |
314 | perf_evsel__hw_cache_op[op][0], | |
315 | perf_evsel__hw_cache_result[result][0]); | |
316 | } | |
317 | ||
318 | return scnprintf(bf, size, "%s-%s", perf_evsel__hw_cache[type][0], | |
319 | perf_evsel__hw_cache_op[op][1]); | |
320 | } | |
321 | ||
dd4f5223 | 322 | static int __perf_evsel__hw_cache_name(u64 config, char *bf, size_t size) |
0b668bc9 ACM |
323 | { |
324 | u8 op, result, type = (config >> 0) & 0xff; | |
325 | const char *err = "unknown-ext-hardware-cache-type"; | |
326 | ||
327 | if (type > PERF_COUNT_HW_CACHE_MAX) | |
328 | goto out_err; | |
329 | ||
330 | op = (config >> 8) & 0xff; | |
331 | err = "unknown-ext-hardware-cache-op"; | |
332 | if (op > PERF_COUNT_HW_CACHE_OP_MAX) | |
333 | goto out_err; | |
334 | ||
335 | result = (config >> 16) & 0xff; | |
336 | err = "unknown-ext-hardware-cache-result"; | |
337 | if (result > PERF_COUNT_HW_CACHE_RESULT_MAX) | |
338 | goto out_err; | |
339 | ||
340 | err = "invalid-cache"; | |
341 | if (!perf_evsel__is_cache_op_valid(type, op)) | |
342 | goto out_err; | |
343 | ||
344 | return __perf_evsel__hw_cache_type_op_res_name(type, op, result, bf, size); | |
345 | out_err: | |
346 | return scnprintf(bf, size, "%s", err); | |
347 | } | |
348 | ||
349 | static int perf_evsel__hw_cache_name(struct perf_evsel *evsel, char *bf, size_t size) | |
350 | { | |
351 | int ret = __perf_evsel__hw_cache_name(evsel->attr.config, bf, size); | |
352 | return ret + perf_evsel__add_modifiers(evsel, bf + ret, size - ret); | |
353 | } | |
354 | ||
6eef3d9c ACM |
355 | static int perf_evsel__raw_name(struct perf_evsel *evsel, char *bf, size_t size) |
356 | { | |
357 | int ret = scnprintf(bf, size, "raw 0x%" PRIx64, evsel->attr.config); | |
358 | return ret + perf_evsel__add_modifiers(evsel, bf + ret, size - ret); | |
359 | } | |
360 | ||
7289f83c | 361 | const char *perf_evsel__name(struct perf_evsel *evsel) |
a4460836 | 362 | { |
7289f83c | 363 | char bf[128]; |
a4460836 | 364 | |
7289f83c ACM |
365 | if (evsel->name) |
366 | return evsel->name; | |
c410431c ACM |
367 | |
368 | switch (evsel->attr.type) { | |
369 | case PERF_TYPE_RAW: | |
6eef3d9c | 370 | perf_evsel__raw_name(evsel, bf, sizeof(bf)); |
c410431c ACM |
371 | break; |
372 | ||
373 | case PERF_TYPE_HARDWARE: | |
7289f83c | 374 | perf_evsel__hw_name(evsel, bf, sizeof(bf)); |
c410431c | 375 | break; |
0b668bc9 ACM |
376 | |
377 | case PERF_TYPE_HW_CACHE: | |
7289f83c | 378 | perf_evsel__hw_cache_name(evsel, bf, sizeof(bf)); |
0b668bc9 ACM |
379 | break; |
380 | ||
335c2f5d | 381 | case PERF_TYPE_SOFTWARE: |
7289f83c | 382 | perf_evsel__sw_name(evsel, bf, sizeof(bf)); |
335c2f5d ACM |
383 | break; |
384 | ||
a4460836 | 385 | case PERF_TYPE_TRACEPOINT: |
7289f83c | 386 | scnprintf(bf, sizeof(bf), "%s", "unknown tracepoint"); |
a4460836 ACM |
387 | break; |
388 | ||
287e74aa JO |
389 | case PERF_TYPE_BREAKPOINT: |
390 | perf_evsel__bp_name(evsel, bf, sizeof(bf)); | |
391 | break; | |
392 | ||
c410431c | 393 | default: |
ca1b1457 RR |
394 | scnprintf(bf, sizeof(bf), "unknown attr type: %d", |
395 | evsel->attr.type); | |
a4460836 | 396 | break; |
c410431c ACM |
397 | } |
398 | ||
7289f83c ACM |
399 | evsel->name = strdup(bf); |
400 | ||
401 | return evsel->name ?: "unknown"; | |
c410431c ACM |
402 | } |
403 | ||
5090c6ae NK |
404 | void perf_evsel__config(struct perf_evsel *evsel, struct perf_record_opts *opts, |
405 | struct perf_evsel *first) | |
0f82ebc4 ACM |
406 | { |
407 | struct perf_event_attr *attr = &evsel->attr; | |
408 | int track = !evsel->idx; /* only the first counter needs these */ | |
409 | ||
5e1c81d9 | 410 | attr->disabled = 1; |
808e1226 | 411 | attr->sample_id_all = opts->sample_id_all_missing ? 0 : 1; |
0f82ebc4 ACM |
412 | attr->inherit = !opts->no_inherit; |
413 | attr->read_format = PERF_FORMAT_TOTAL_TIME_ENABLED | | |
414 | PERF_FORMAT_TOTAL_TIME_RUNNING | | |
415 | PERF_FORMAT_ID; | |
416 | ||
417 | attr->sample_type |= PERF_SAMPLE_IP | PERF_SAMPLE_TID; | |
418 | ||
419 | /* | |
420 | * We default some events to a 1 default interval. But keep | |
421 | * it a weak assumption overridable by the user. | |
422 | */ | |
423 | if (!attr->sample_period || (opts->user_freq != UINT_MAX && | |
424 | opts->user_interval != ULLONG_MAX)) { | |
425 | if (opts->freq) { | |
426 | attr->sample_type |= PERF_SAMPLE_PERIOD; | |
427 | attr->freq = 1; | |
428 | attr->sample_freq = opts->freq; | |
429 | } else { | |
430 | attr->sample_period = opts->default_interval; | |
431 | } | |
432 | } | |
433 | ||
434 | if (opts->no_samples) | |
435 | attr->sample_freq = 0; | |
436 | ||
437 | if (opts->inherit_stat) | |
438 | attr->inherit_stat = 1; | |
439 | ||
440 | if (opts->sample_address) { | |
441 | attr->sample_type |= PERF_SAMPLE_ADDR; | |
442 | attr->mmap_data = track; | |
443 | } | |
444 | ||
26d33022 | 445 | if (opts->call_graph) { |
0f82ebc4 ACM |
446 | attr->sample_type |= PERF_SAMPLE_CALLCHAIN; |
447 | ||
26d33022 JO |
448 | if (opts->call_graph == CALLCHAIN_DWARF) { |
449 | attr->sample_type |= PERF_SAMPLE_REGS_USER | | |
450 | PERF_SAMPLE_STACK_USER; | |
451 | attr->sample_regs_user = PERF_REGS_MASK; | |
452 | attr->sample_stack_user = opts->stack_dump_size; | |
453 | attr->exclude_callchain_user = 1; | |
454 | } | |
455 | } | |
456 | ||
e40ee742 | 457 | if (perf_target__has_cpu(&opts->target)) |
0f82ebc4 ACM |
458 | attr->sample_type |= PERF_SAMPLE_CPU; |
459 | ||
3e76ac78 AV |
460 | if (opts->period) |
461 | attr->sample_type |= PERF_SAMPLE_PERIOD; | |
462 | ||
808e1226 | 463 | if (!opts->sample_id_all_missing && |
d67356e7 | 464 | (opts->sample_time || !opts->no_inherit || |
aa22dd49 | 465 | perf_target__has_cpu(&opts->target))) |
0f82ebc4 ACM |
466 | attr->sample_type |= PERF_SAMPLE_TIME; |
467 | ||
468 | if (opts->raw_samples) { | |
469 | attr->sample_type |= PERF_SAMPLE_TIME; | |
470 | attr->sample_type |= PERF_SAMPLE_RAW; | |
471 | attr->sample_type |= PERF_SAMPLE_CPU; | |
472 | } | |
473 | ||
474 | if (opts->no_delay) { | |
475 | attr->watermark = 0; | |
476 | attr->wakeup_events = 1; | |
477 | } | |
bdfebd84 RAV |
478 | if (opts->branch_stack) { |
479 | attr->sample_type |= PERF_SAMPLE_BRANCH_STACK; | |
480 | attr->branch_sample_type = opts->branch_stack; | |
481 | } | |
0f82ebc4 ACM |
482 | |
483 | attr->mmap = track; | |
484 | attr->comm = track; | |
485 | ||
d67356e7 NK |
486 | if (perf_target__none(&opts->target) && |
487 | (!opts->group || evsel == first)) { | |
0f82ebc4 ACM |
488 | attr->enable_on_exec = 1; |
489 | } | |
490 | } | |
491 | ||
69aad6f1 ACM |
492 | int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads) |
493 | { | |
4af4c955 | 494 | int cpu, thread; |
69aad6f1 | 495 | evsel->fd = xyarray__new(ncpus, nthreads, sizeof(int)); |
4af4c955 DA |
496 | |
497 | if (evsel->fd) { | |
498 | for (cpu = 0; cpu < ncpus; cpu++) { | |
499 | for (thread = 0; thread < nthreads; thread++) { | |
500 | FD(evsel, cpu, thread) = -1; | |
501 | } | |
502 | } | |
503 | } | |
504 | ||
69aad6f1 ACM |
505 | return evsel->fd != NULL ? 0 : -ENOMEM; |
506 | } | |
507 | ||
70db7533 ACM |
508 | int perf_evsel__alloc_id(struct perf_evsel *evsel, int ncpus, int nthreads) |
509 | { | |
a91e5431 ACM |
510 | evsel->sample_id = xyarray__new(ncpus, nthreads, sizeof(struct perf_sample_id)); |
511 | if (evsel->sample_id == NULL) | |
512 | return -ENOMEM; | |
513 | ||
514 | evsel->id = zalloc(ncpus * nthreads * sizeof(u64)); | |
515 | if (evsel->id == NULL) { | |
516 | xyarray__delete(evsel->sample_id); | |
517 | evsel->sample_id = NULL; | |
518 | return -ENOMEM; | |
519 | } | |
520 | ||
521 | return 0; | |
70db7533 ACM |
522 | } |
523 | ||
c52b12ed ACM |
524 | int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus) |
525 | { | |
526 | evsel->counts = zalloc((sizeof(*evsel->counts) + | |
527 | (ncpus * sizeof(struct perf_counts_values)))); | |
528 | return evsel->counts != NULL ? 0 : -ENOMEM; | |
529 | } | |
530 | ||
69aad6f1 ACM |
531 | void perf_evsel__free_fd(struct perf_evsel *evsel) |
532 | { | |
533 | xyarray__delete(evsel->fd); | |
534 | evsel->fd = NULL; | |
535 | } | |
536 | ||
70db7533 ACM |
537 | void perf_evsel__free_id(struct perf_evsel *evsel) |
538 | { | |
a91e5431 ACM |
539 | xyarray__delete(evsel->sample_id); |
540 | evsel->sample_id = NULL; | |
541 | free(evsel->id); | |
70db7533 ACM |
542 | evsel->id = NULL; |
543 | } | |
544 | ||
c52b12ed ACM |
545 | void perf_evsel__close_fd(struct perf_evsel *evsel, int ncpus, int nthreads) |
546 | { | |
547 | int cpu, thread; | |
548 | ||
549 | for (cpu = 0; cpu < ncpus; cpu++) | |
550 | for (thread = 0; thread < nthreads; ++thread) { | |
551 | close(FD(evsel, cpu, thread)); | |
552 | FD(evsel, cpu, thread) = -1; | |
553 | } | |
554 | } | |
555 | ||
ef1d1af2 | 556 | void perf_evsel__exit(struct perf_evsel *evsel) |
69aad6f1 ACM |
557 | { |
558 | assert(list_empty(&evsel->node)); | |
559 | xyarray__delete(evsel->fd); | |
a91e5431 ACM |
560 | xyarray__delete(evsel->sample_id); |
561 | free(evsel->id); | |
ef1d1af2 ACM |
562 | } |
563 | ||
564 | void perf_evsel__delete(struct perf_evsel *evsel) | |
565 | { | |
566 | perf_evsel__exit(evsel); | |
023695d9 | 567 | close_cgroup(evsel->cgrp); |
6a4bb04c | 568 | free(evsel->group_name); |
efd2b924 ACM |
569 | if (evsel->tp_format && evsel->name == evsel->tp_format->name) { |
570 | evsel->name = NULL; | |
571 | pevent_free_format(evsel->tp_format); | |
572 | } | |
f0c55bcf | 573 | free(evsel->name); |
69aad6f1 ACM |
574 | free(evsel); |
575 | } | |
c52b12ed ACM |
576 | |
577 | int __perf_evsel__read_on_cpu(struct perf_evsel *evsel, | |
578 | int cpu, int thread, bool scale) | |
579 | { | |
580 | struct perf_counts_values count; | |
581 | size_t nv = scale ? 3 : 1; | |
582 | ||
583 | if (FD(evsel, cpu, thread) < 0) | |
584 | return -EINVAL; | |
585 | ||
4eed11d5 ACM |
586 | if (evsel->counts == NULL && perf_evsel__alloc_counts(evsel, cpu + 1) < 0) |
587 | return -ENOMEM; | |
588 | ||
c52b12ed ACM |
589 | if (readn(FD(evsel, cpu, thread), &count, nv * sizeof(u64)) < 0) |
590 | return -errno; | |
591 | ||
592 | if (scale) { | |
593 | if (count.run == 0) | |
594 | count.val = 0; | |
595 | else if (count.run < count.ena) | |
596 | count.val = (u64)((double)count.val * count.ena / count.run + 0.5); | |
597 | } else | |
598 | count.ena = count.run = 0; | |
599 | ||
600 | evsel->counts->cpu[cpu] = count; | |
601 | return 0; | |
602 | } | |
603 | ||
604 | int __perf_evsel__read(struct perf_evsel *evsel, | |
605 | int ncpus, int nthreads, bool scale) | |
606 | { | |
607 | size_t nv = scale ? 3 : 1; | |
608 | int cpu, thread; | |
609 | struct perf_counts_values *aggr = &evsel->counts->aggr, count; | |
610 | ||
52bcd994 | 611 | aggr->val = aggr->ena = aggr->run = 0; |
c52b12ed ACM |
612 | |
613 | for (cpu = 0; cpu < ncpus; cpu++) { | |
614 | for (thread = 0; thread < nthreads; thread++) { | |
615 | if (FD(evsel, cpu, thread) < 0) | |
616 | continue; | |
617 | ||
618 | if (readn(FD(evsel, cpu, thread), | |
619 | &count, nv * sizeof(u64)) < 0) | |
620 | return -errno; | |
621 | ||
622 | aggr->val += count.val; | |
623 | if (scale) { | |
624 | aggr->ena += count.ena; | |
625 | aggr->run += count.run; | |
626 | } | |
627 | } | |
628 | } | |
629 | ||
630 | evsel->counts->scaled = 0; | |
631 | if (scale) { | |
632 | if (aggr->run == 0) { | |
633 | evsel->counts->scaled = -1; | |
634 | aggr->val = 0; | |
635 | return 0; | |
636 | } | |
637 | ||
638 | if (aggr->run < aggr->ena) { | |
639 | evsel->counts->scaled = 1; | |
640 | aggr->val = (u64)((double)aggr->val * aggr->ena / aggr->run + 0.5); | |
641 | } | |
642 | } else | |
643 | aggr->ena = aggr->run = 0; | |
644 | ||
645 | return 0; | |
646 | } | |
48290609 | 647 | |
6a4bb04c JO |
648 | static int get_group_fd(struct perf_evsel *evsel, int cpu, int thread) |
649 | { | |
650 | struct perf_evsel *leader = evsel->leader; | |
651 | int fd; | |
652 | ||
653 | if (!leader) | |
654 | return -1; | |
655 | ||
656 | /* | |
657 | * Leader must be already processed/open, | |
658 | * if not it's a bug. | |
659 | */ | |
660 | BUG_ON(!leader->fd); | |
661 | ||
662 | fd = FD(leader, cpu, thread); | |
663 | BUG_ON(fd == -1); | |
664 | ||
665 | return fd; | |
666 | } | |
667 | ||
0252208e | 668 | static int __perf_evsel__open(struct perf_evsel *evsel, struct cpu_map *cpus, |
6a4bb04c | 669 | struct thread_map *threads) |
48290609 | 670 | { |
0252208e | 671 | int cpu, thread; |
023695d9 | 672 | unsigned long flags = 0; |
727ab04e | 673 | int pid = -1, err; |
48290609 | 674 | |
0252208e ACM |
675 | if (evsel->fd == NULL && |
676 | perf_evsel__alloc_fd(evsel, cpus->nr, threads->nr) < 0) | |
727ab04e | 677 | return -ENOMEM; |
4eed11d5 | 678 | |
023695d9 SE |
679 | if (evsel->cgrp) { |
680 | flags = PERF_FLAG_PID_CGROUP; | |
681 | pid = evsel->cgrp->fd; | |
682 | } | |
683 | ||
86bd5e86 | 684 | for (cpu = 0; cpu < cpus->nr; cpu++) { |
9d04f178 | 685 | |
0252208e | 686 | for (thread = 0; thread < threads->nr; thread++) { |
6a4bb04c | 687 | int group_fd; |
023695d9 SE |
688 | |
689 | if (!evsel->cgrp) | |
690 | pid = threads->map[thread]; | |
691 | ||
6a4bb04c JO |
692 | group_fd = get_group_fd(evsel, cpu, thread); |
693 | ||
0252208e | 694 | FD(evsel, cpu, thread) = sys_perf_event_open(&evsel->attr, |
023695d9 | 695 | pid, |
f08199d3 | 696 | cpus->map[cpu], |
023695d9 | 697 | group_fd, flags); |
727ab04e ACM |
698 | if (FD(evsel, cpu, thread) < 0) { |
699 | err = -errno; | |
0252208e | 700 | goto out_close; |
727ab04e | 701 | } |
0252208e | 702 | } |
48290609 ACM |
703 | } |
704 | ||
705 | return 0; | |
706 | ||
707 | out_close: | |
0252208e ACM |
708 | do { |
709 | while (--thread >= 0) { | |
710 | close(FD(evsel, cpu, thread)); | |
711 | FD(evsel, cpu, thread) = -1; | |
712 | } | |
713 | thread = threads->nr; | |
714 | } while (--cpu >= 0); | |
727ab04e ACM |
715 | return err; |
716 | } | |
717 | ||
718 | void perf_evsel__close(struct perf_evsel *evsel, int ncpus, int nthreads) | |
719 | { | |
720 | if (evsel->fd == NULL) | |
721 | return; | |
722 | ||
723 | perf_evsel__close_fd(evsel, ncpus, nthreads); | |
724 | perf_evsel__free_fd(evsel); | |
725 | evsel->fd = NULL; | |
48290609 ACM |
726 | } |
727 | ||
0252208e ACM |
728 | static struct { |
729 | struct cpu_map map; | |
730 | int cpus[1]; | |
731 | } empty_cpu_map = { | |
732 | .map.nr = 1, | |
733 | .cpus = { -1, }, | |
734 | }; | |
735 | ||
736 | static struct { | |
737 | struct thread_map map; | |
738 | int threads[1]; | |
739 | } empty_thread_map = { | |
740 | .map.nr = 1, | |
741 | .threads = { -1, }, | |
742 | }; | |
743 | ||
f08199d3 | 744 | int perf_evsel__open(struct perf_evsel *evsel, struct cpu_map *cpus, |
6a4bb04c | 745 | struct thread_map *threads) |
48290609 | 746 | { |
0252208e ACM |
747 | if (cpus == NULL) { |
748 | /* Work around old compiler warnings about strict aliasing */ | |
749 | cpus = &empty_cpu_map.map; | |
48290609 ACM |
750 | } |
751 | ||
0252208e ACM |
752 | if (threads == NULL) |
753 | threads = &empty_thread_map.map; | |
48290609 | 754 | |
6a4bb04c | 755 | return __perf_evsel__open(evsel, cpus, threads); |
48290609 ACM |
756 | } |
757 | ||
f08199d3 | 758 | int perf_evsel__open_per_cpu(struct perf_evsel *evsel, |
6a4bb04c | 759 | struct cpu_map *cpus) |
48290609 | 760 | { |
6a4bb04c | 761 | return __perf_evsel__open(evsel, cpus, &empty_thread_map.map); |
0252208e | 762 | } |
48290609 | 763 | |
f08199d3 | 764 | int perf_evsel__open_per_thread(struct perf_evsel *evsel, |
6a4bb04c | 765 | struct thread_map *threads) |
0252208e | 766 | { |
6a4bb04c | 767 | return __perf_evsel__open(evsel, &empty_cpu_map.map, threads); |
48290609 | 768 | } |
70082dd9 | 769 | |
8115d60c | 770 | static int perf_event__parse_id_sample(const union perf_event *event, u64 type, |
37073f9e JO |
771 | struct perf_sample *sample, |
772 | bool swapped) | |
d0dd74e8 ACM |
773 | { |
774 | const u64 *array = event->sample.array; | |
37073f9e | 775 | union u64_swap u; |
d0dd74e8 ACM |
776 | |
777 | array += ((event->header.size - | |
778 | sizeof(event->header)) / sizeof(u64)) - 1; | |
779 | ||
780 | if (type & PERF_SAMPLE_CPU) { | |
37073f9e JO |
781 | u.val64 = *array; |
782 | if (swapped) { | |
783 | /* undo swap of u64, then swap on individual u32s */ | |
784 | u.val64 = bswap_64(u.val64); | |
785 | u.val32[0] = bswap_32(u.val32[0]); | |
786 | } | |
787 | ||
788 | sample->cpu = u.val32[0]; | |
d0dd74e8 ACM |
789 | array--; |
790 | } | |
791 | ||
792 | if (type & PERF_SAMPLE_STREAM_ID) { | |
793 | sample->stream_id = *array; | |
794 | array--; | |
795 | } | |
796 | ||
797 | if (type & PERF_SAMPLE_ID) { | |
798 | sample->id = *array; | |
799 | array--; | |
800 | } | |
801 | ||
802 | if (type & PERF_SAMPLE_TIME) { | |
803 | sample->time = *array; | |
804 | array--; | |
805 | } | |
806 | ||
807 | if (type & PERF_SAMPLE_TID) { | |
37073f9e JO |
808 | u.val64 = *array; |
809 | if (swapped) { | |
810 | /* undo swap of u64, then swap on individual u32s */ | |
811 | u.val64 = bswap_64(u.val64); | |
812 | u.val32[0] = bswap_32(u.val32[0]); | |
813 | u.val32[1] = bswap_32(u.val32[1]); | |
814 | } | |
815 | ||
816 | sample->pid = u.val32[0]; | |
817 | sample->tid = u.val32[1]; | |
d0dd74e8 ACM |
818 | } |
819 | ||
820 | return 0; | |
821 | } | |
822 | ||
98e1da90 FW |
823 | static bool sample_overlap(const union perf_event *event, |
824 | const void *offset, u64 size) | |
825 | { | |
826 | const void *base = event; | |
827 | ||
828 | if (offset + size > base + event->header.size) | |
829 | return true; | |
830 | ||
831 | return false; | |
832 | } | |
833 | ||
a3f698fe | 834 | int perf_evsel__parse_sample(struct perf_evsel *evsel, union perf_event *event, |
936be503 | 835 | struct perf_sample *data, bool swapped) |
d0dd74e8 | 836 | { |
a3f698fe | 837 | u64 type = evsel->attr.sample_type; |
0f6a3015 | 838 | u64 regs_user = evsel->attr.sample_regs_user; |
d0dd74e8 ACM |
839 | const u64 *array; |
840 | ||
936be503 DA |
841 | /* |
842 | * used for cross-endian analysis. See git commit 65014ab3 | |
843 | * for why this goofiness is needed. | |
844 | */ | |
6a11f92e | 845 | union u64_swap u; |
936be503 | 846 | |
f3bda2c9 | 847 | memset(data, 0, sizeof(*data)); |
d0dd74e8 ACM |
848 | data->cpu = data->pid = data->tid = -1; |
849 | data->stream_id = data->id = data->time = -1ULL; | |
a4a03fc7 | 850 | data->period = 1; |
d0dd74e8 ACM |
851 | |
852 | if (event->header.type != PERF_RECORD_SAMPLE) { | |
a3f698fe | 853 | if (!evsel->attr.sample_id_all) |
d0dd74e8 | 854 | return 0; |
37073f9e | 855 | return perf_event__parse_id_sample(event, type, data, swapped); |
d0dd74e8 ACM |
856 | } |
857 | ||
858 | array = event->sample.array; | |
859 | ||
a3f698fe | 860 | if (evsel->sample_size + sizeof(event->header) > event->header.size) |
a2854124 FW |
861 | return -EFAULT; |
862 | ||
d0dd74e8 ACM |
863 | if (type & PERF_SAMPLE_IP) { |
864 | data->ip = event->ip.ip; | |
865 | array++; | |
866 | } | |
867 | ||
868 | if (type & PERF_SAMPLE_TID) { | |
936be503 DA |
869 | u.val64 = *array; |
870 | if (swapped) { | |
871 | /* undo swap of u64, then swap on individual u32s */ | |
872 | u.val64 = bswap_64(u.val64); | |
873 | u.val32[0] = bswap_32(u.val32[0]); | |
874 | u.val32[1] = bswap_32(u.val32[1]); | |
875 | } | |
876 | ||
877 | data->pid = u.val32[0]; | |
878 | data->tid = u.val32[1]; | |
d0dd74e8 ACM |
879 | array++; |
880 | } | |
881 | ||
882 | if (type & PERF_SAMPLE_TIME) { | |
883 | data->time = *array; | |
884 | array++; | |
885 | } | |
886 | ||
7cec0922 | 887 | data->addr = 0; |
d0dd74e8 ACM |
888 | if (type & PERF_SAMPLE_ADDR) { |
889 | data->addr = *array; | |
890 | array++; | |
891 | } | |
892 | ||
893 | data->id = -1ULL; | |
894 | if (type & PERF_SAMPLE_ID) { | |
895 | data->id = *array; | |
896 | array++; | |
897 | } | |
898 | ||
899 | if (type & PERF_SAMPLE_STREAM_ID) { | |
900 | data->stream_id = *array; | |
901 | array++; | |
902 | } | |
903 | ||
904 | if (type & PERF_SAMPLE_CPU) { | |
936be503 DA |
905 | |
906 | u.val64 = *array; | |
907 | if (swapped) { | |
908 | /* undo swap of u64, then swap on individual u32s */ | |
909 | u.val64 = bswap_64(u.val64); | |
910 | u.val32[0] = bswap_32(u.val32[0]); | |
911 | } | |
912 | ||
913 | data->cpu = u.val32[0]; | |
d0dd74e8 ACM |
914 | array++; |
915 | } | |
916 | ||
917 | if (type & PERF_SAMPLE_PERIOD) { | |
918 | data->period = *array; | |
919 | array++; | |
920 | } | |
921 | ||
922 | if (type & PERF_SAMPLE_READ) { | |
f9d36996 | 923 | fprintf(stderr, "PERF_SAMPLE_READ is unsupported for now\n"); |
d0dd74e8 ACM |
924 | return -1; |
925 | } | |
926 | ||
927 | if (type & PERF_SAMPLE_CALLCHAIN) { | |
98e1da90 FW |
928 | if (sample_overlap(event, array, sizeof(data->callchain->nr))) |
929 | return -EFAULT; | |
930 | ||
d0dd74e8 | 931 | data->callchain = (struct ip_callchain *)array; |
98e1da90 FW |
932 | |
933 | if (sample_overlap(event, array, data->callchain->nr)) | |
934 | return -EFAULT; | |
935 | ||
d0dd74e8 ACM |
936 | array += 1 + data->callchain->nr; |
937 | } | |
938 | ||
939 | if (type & PERF_SAMPLE_RAW) { | |
8e303f20 JO |
940 | const u64 *pdata; |
941 | ||
936be503 DA |
942 | u.val64 = *array; |
943 | if (WARN_ONCE(swapped, | |
944 | "Endianness of raw data not corrected!\n")) { | |
945 | /* undo swap of u64, then swap on individual u32s */ | |
946 | u.val64 = bswap_64(u.val64); | |
947 | u.val32[0] = bswap_32(u.val32[0]); | |
948 | u.val32[1] = bswap_32(u.val32[1]); | |
949 | } | |
98e1da90 FW |
950 | |
951 | if (sample_overlap(event, array, sizeof(u32))) | |
952 | return -EFAULT; | |
953 | ||
936be503 | 954 | data->raw_size = u.val32[0]; |
8e303f20 | 955 | pdata = (void *) array + sizeof(u32); |
98e1da90 | 956 | |
8e303f20 | 957 | if (sample_overlap(event, pdata, data->raw_size)) |
98e1da90 FW |
958 | return -EFAULT; |
959 | ||
8e303f20 | 960 | data->raw_data = (void *) pdata; |
fa30c964 SE |
961 | |
962 | array = (void *)array + data->raw_size + sizeof(u32); | |
d0dd74e8 ACM |
963 | } |
964 | ||
b5387528 RAV |
965 | if (type & PERF_SAMPLE_BRANCH_STACK) { |
966 | u64 sz; | |
967 | ||
968 | data->branch_stack = (struct branch_stack *)array; | |
969 | array++; /* nr */ | |
970 | ||
971 | sz = data->branch_stack->nr * sizeof(struct branch_entry); | |
972 | sz /= sizeof(u64); | |
973 | array += sz; | |
974 | } | |
0f6a3015 JO |
975 | |
976 | if (type & PERF_SAMPLE_REGS_USER) { | |
977 | /* First u64 tells us if we have any regs in sample. */ | |
978 | u64 avail = *array++; | |
979 | ||
980 | if (avail) { | |
981 | data->user_regs.regs = (u64 *)array; | |
982 | array += hweight_long(regs_user); | |
983 | } | |
984 | } | |
985 | ||
986 | if (type & PERF_SAMPLE_STACK_USER) { | |
987 | u64 size = *array++; | |
988 | ||
989 | data->user_stack.offset = ((char *)(array - 1) | |
990 | - (char *) event); | |
991 | ||
992 | if (!size) { | |
993 | data->user_stack.size = 0; | |
994 | } else { | |
995 | data->user_stack.data = (char *)array; | |
996 | array += size / sizeof(*array); | |
997 | data->user_stack.size = *array; | |
998 | } | |
999 | } | |
1000 | ||
d0dd74e8 ACM |
1001 | return 0; |
1002 | } | |
74eec26f AV |
1003 | |
1004 | int perf_event__synthesize_sample(union perf_event *event, u64 type, | |
1005 | const struct perf_sample *sample, | |
1006 | bool swapped) | |
1007 | { | |
1008 | u64 *array; | |
1009 | ||
1010 | /* | |
1011 | * used for cross-endian analysis. See git commit 65014ab3 | |
1012 | * for why this goofiness is needed. | |
1013 | */ | |
6a11f92e | 1014 | union u64_swap u; |
74eec26f AV |
1015 | |
1016 | array = event->sample.array; | |
1017 | ||
1018 | if (type & PERF_SAMPLE_IP) { | |
1019 | event->ip.ip = sample->ip; | |
1020 | array++; | |
1021 | } | |
1022 | ||
1023 | if (type & PERF_SAMPLE_TID) { | |
1024 | u.val32[0] = sample->pid; | |
1025 | u.val32[1] = sample->tid; | |
1026 | if (swapped) { | |
1027 | /* | |
a3f698fe | 1028 | * Inverse of what is done in perf_evsel__parse_sample |
74eec26f AV |
1029 | */ |
1030 | u.val32[0] = bswap_32(u.val32[0]); | |
1031 | u.val32[1] = bswap_32(u.val32[1]); | |
1032 | u.val64 = bswap_64(u.val64); | |
1033 | } | |
1034 | ||
1035 | *array = u.val64; | |
1036 | array++; | |
1037 | } | |
1038 | ||
1039 | if (type & PERF_SAMPLE_TIME) { | |
1040 | *array = sample->time; | |
1041 | array++; | |
1042 | } | |
1043 | ||
1044 | if (type & PERF_SAMPLE_ADDR) { | |
1045 | *array = sample->addr; | |
1046 | array++; | |
1047 | } | |
1048 | ||
1049 | if (type & PERF_SAMPLE_ID) { | |
1050 | *array = sample->id; | |
1051 | array++; | |
1052 | } | |
1053 | ||
1054 | if (type & PERF_SAMPLE_STREAM_ID) { | |
1055 | *array = sample->stream_id; | |
1056 | array++; | |
1057 | } | |
1058 | ||
1059 | if (type & PERF_SAMPLE_CPU) { | |
1060 | u.val32[0] = sample->cpu; | |
1061 | if (swapped) { | |
1062 | /* | |
a3f698fe | 1063 | * Inverse of what is done in perf_evsel__parse_sample |
74eec26f AV |
1064 | */ |
1065 | u.val32[0] = bswap_32(u.val32[0]); | |
1066 | u.val64 = bswap_64(u.val64); | |
1067 | } | |
1068 | *array = u.val64; | |
1069 | array++; | |
1070 | } | |
1071 | ||
1072 | if (type & PERF_SAMPLE_PERIOD) { | |
1073 | *array = sample->period; | |
1074 | array++; | |
1075 | } | |
1076 | ||
1077 | return 0; | |
1078 | } | |
5555ded4 | 1079 | |
efd2b924 ACM |
1080 | struct format_field *perf_evsel__field(struct perf_evsel *evsel, const char *name) |
1081 | { | |
1082 | return pevent_find_field(evsel->tp_format, name); | |
1083 | } | |
1084 | ||
5555ded4 ACM |
1085 | char *perf_evsel__strval(struct perf_evsel *evsel, struct perf_sample *sample, |
1086 | const char *name) | |
1087 | { | |
efd2b924 | 1088 | struct format_field *field = perf_evsel__field(evsel, name); |
5555ded4 ACM |
1089 | int offset; |
1090 | ||
efd2b924 ACM |
1091 | if (!field) |
1092 | return NULL; | |
5555ded4 ACM |
1093 | |
1094 | offset = field->offset; | |
1095 | ||
1096 | if (field->flags & FIELD_IS_DYNAMIC) { | |
1097 | offset = *(int *)(sample->raw_data + field->offset); | |
1098 | offset &= 0xffff; | |
1099 | } | |
1100 | ||
1101 | return sample->raw_data + offset; | |
1102 | } | |
1103 | ||
1104 | u64 perf_evsel__intval(struct perf_evsel *evsel, struct perf_sample *sample, | |
1105 | const char *name) | |
1106 | { | |
efd2b924 | 1107 | struct format_field *field = perf_evsel__field(evsel, name); |
5555ded4 ACM |
1108 | u64 val; |
1109 | ||
efd2b924 ACM |
1110 | if (!field) |
1111 | return 0; | |
5555ded4 ACM |
1112 | |
1113 | val = pevent_read_number(evsel->tp_format->pevent, | |
1114 | sample->raw_data + field->offset, field->size); | |
1115 | return val; | |
1116 | ||
1117 | } |