Commit | Line | Data |
---|---|---|
234fbbf5 ACM |
1 | #include <linux/types.h> |
2 | #include "event.h" | |
3 | #include "debug.h" | |
f62d3f0f | 4 | #include "machine.h" |
c410a338 | 5 | #include "sort.h" |
234fbbf5 | 6 | #include "string.h" |
c410a338 | 7 | #include "strlist.h" |
62daacb5 | 8 | #include "thread.h" |
7c940c18 | 9 | #include "thread_map.h" |
234fbbf5 | 10 | |
8115d60c | 11 | static const char *perf_event__names[] = { |
3cb6d154 FW |
12 | [0] = "TOTAL", |
13 | [PERF_RECORD_MMAP] = "MMAP", | |
5c5e854b | 14 | [PERF_RECORD_MMAP2] = "MMAP2", |
3cb6d154 FW |
15 | [PERF_RECORD_LOST] = "LOST", |
16 | [PERF_RECORD_COMM] = "COMM", | |
17 | [PERF_RECORD_EXIT] = "EXIT", | |
18 | [PERF_RECORD_THROTTLE] = "THROTTLE", | |
19 | [PERF_RECORD_UNTHROTTLE] = "UNTHROTTLE", | |
20 | [PERF_RECORD_FORK] = "FORK", | |
21 | [PERF_RECORD_READ] = "READ", | |
22 | [PERF_RECORD_SAMPLE] = "SAMPLE", | |
23 | [PERF_RECORD_HEADER_ATTR] = "ATTR", | |
24 | [PERF_RECORD_HEADER_EVENT_TYPE] = "EVENT_TYPE", | |
25 | [PERF_RECORD_HEADER_TRACING_DATA] = "TRACING_DATA", | |
26 | [PERF_RECORD_HEADER_BUILD_ID] = "BUILD_ID", | |
27 | [PERF_RECORD_FINISHED_ROUND] = "FINISHED_ROUND", | |
c8446b9b ACM |
28 | }; |
29 | ||
8115d60c | 30 | const char *perf_event__name(unsigned int id) |
3835bc00 | 31 | { |
8115d60c | 32 | if (id >= ARRAY_SIZE(perf_event__names)) |
3835bc00 | 33 | return "INVALID"; |
8115d60c | 34 | if (!perf_event__names[id]) |
3835bc00 | 35 | return "UNKNOWN"; |
8115d60c | 36 | return perf_event__names[id]; |
3835bc00 TG |
37 | } |
38 | ||
8d50e5b4 | 39 | static struct perf_sample synth_sample = { |
640c03ce ACM |
40 | .pid = -1, |
41 | .tid = -1, | |
42 | .time = -1, | |
43 | .stream_id = -1, | |
44 | .cpu = -1, | |
45 | .period = 1, | |
46 | }; | |
47 | ||
f5faf726 | 48 | static pid_t perf_event__get_comm_tgid(pid_t pid, char *comm, size_t len) |
234fbbf5 | 49 | { |
234fbbf5 ACM |
50 | char filename[PATH_MAX]; |
51 | char bf[BUFSIZ]; | |
52 | FILE *fp; | |
53 | size_t size = 0; | |
f5faf726 | 54 | pid_t tgid = -1; |
234fbbf5 ACM |
55 | |
56 | snprintf(filename, sizeof(filename), "/proc/%d/status", pid); | |
57 | ||
58 | fp = fopen(filename, "r"); | |
59 | if (fp == NULL) { | |
234fbbf5 ACM |
60 | pr_debug("couldn't open %s\n", filename); |
61 | return 0; | |
62 | } | |
63 | ||
f5faf726 | 64 | while (!comm[0] || (tgid < 0)) { |
9c90a61c | 65 | if (fgets(bf, sizeof(bf), fp) == NULL) { |
f5faf726 DA |
66 | pr_warning("couldn't get COMM and pgid, malformed %s\n", |
67 | filename); | |
68 | break; | |
9c90a61c | 69 | } |
234fbbf5 ACM |
70 | |
71 | if (memcmp(bf, "Name:", 5) == 0) { | |
72 | char *name = bf + 5; | |
73 | while (*name && isspace(*name)) | |
74 | ++name; | |
75 | size = strlen(name) - 1; | |
f5faf726 DA |
76 | if (size >= len) |
77 | size = len - 1; | |
78 | memcpy(comm, name, size); | |
cfbd70c1 | 79 | comm[size] = '\0'; |
f5faf726 | 80 | |
234fbbf5 ACM |
81 | } else if (memcmp(bf, "Tgid:", 5) == 0) { |
82 | char *tgids = bf + 5; | |
83 | while (*tgids && isspace(*tgids)) | |
84 | ++tgids; | |
f5faf726 | 85 | tgid = atoi(tgids); |
234fbbf5 ACM |
86 | } |
87 | } | |
88 | ||
f5faf726 DA |
89 | fclose(fp); |
90 | ||
91 | return tgid; | |
92 | } | |
93 | ||
94 | static pid_t perf_event__synthesize_comm(struct perf_tool *tool, | |
95 | union perf_event *event, pid_t pid, | |
96 | int full, | |
97 | perf_event__handler_t process, | |
98 | struct machine *machine) | |
99 | { | |
100 | char filename[PATH_MAX]; | |
101 | size_t size; | |
102 | DIR *tasks; | |
103 | struct dirent dirent, *next; | |
104 | pid_t tgid; | |
105 | ||
106 | memset(&event->comm, 0, sizeof(event->comm)); | |
107 | ||
108 | tgid = perf_event__get_comm_tgid(pid, event->comm.comm, | |
109 | sizeof(event->comm.comm)); | |
110 | if (tgid < 0) | |
111 | goto out; | |
112 | ||
113 | event->comm.pid = tgid; | |
9c90a61c | 114 | event->comm.header.type = PERF_RECORD_COMM; |
f5faf726 DA |
115 | |
116 | size = strlen(event->comm.comm) + 1; | |
9ac3e487 | 117 | size = PERF_ALIGN(size, sizeof(u64)); |
743eb868 | 118 | memset(event->comm.comm + size, 0, machine->id_hdr_size); |
9c90a61c ACM |
119 | event->comm.header.size = (sizeof(event->comm) - |
120 | (sizeof(event->comm.comm) - size) + | |
743eb868 | 121 | machine->id_hdr_size); |
234fbbf5 | 122 | if (!full) { |
9c90a61c | 123 | event->comm.tid = pid; |
234fbbf5 | 124 | |
1e6d5322 DA |
125 | if (process(tool, event, &synth_sample, machine) != 0) |
126 | return -1; | |
127 | ||
9c90a61c | 128 | goto out; |
234fbbf5 ACM |
129 | } |
130 | ||
131 | snprintf(filename, sizeof(filename), "/proc/%d/task", pid); | |
132 | ||
133 | tasks = opendir(filename); | |
f5faf726 DA |
134 | if (tasks == NULL) { |
135 | pr_debug("couldn't open %s\n", filename); | |
136 | return 0; | |
137 | } | |
234fbbf5 ACM |
138 | |
139 | while (!readdir_r(tasks, &dirent, &next) && next) { | |
140 | char *end; | |
141 | pid = strtol(dirent.d_name, &end, 10); | |
142 | if (*end) | |
143 | continue; | |
144 | ||
f5faf726 DA |
145 | /* already have tgid; jut want to update the comm */ |
146 | (void) perf_event__get_comm_tgid(pid, event->comm.comm, | |
147 | sizeof(event->comm.comm)); | |
148 | ||
149 | size = strlen(event->comm.comm) + 1; | |
9ac3e487 | 150 | size = PERF_ALIGN(size, sizeof(u64)); |
f5faf726 DA |
151 | memset(event->comm.comm + size, 0, machine->id_hdr_size); |
152 | event->comm.header.size = (sizeof(event->comm) - | |
153 | (sizeof(event->comm.comm) - size) + | |
154 | machine->id_hdr_size); | |
155 | ||
9c90a61c | 156 | event->comm.tid = pid; |
234fbbf5 | 157 | |
1e6d5322 DA |
158 | if (process(tool, event, &synth_sample, machine) != 0) { |
159 | tgid = -1; | |
160 | break; | |
161 | } | |
234fbbf5 | 162 | } |
234fbbf5 | 163 | |
9c90a61c ACM |
164 | closedir(tasks); |
165 | out: | |
9c90a61c | 166 | return tgid; |
234fbbf5 ACM |
167 | } |
168 | ||
45694aa7 | 169 | static int perf_event__synthesize_mmap_events(struct perf_tool *tool, |
d20deb64 | 170 | union perf_event *event, |
8115d60c ACM |
171 | pid_t pid, pid_t tgid, |
172 | perf_event__handler_t process, | |
62605dc5 ACM |
173 | struct machine *machine, |
174 | bool mmap_data) | |
234fbbf5 ACM |
175 | { |
176 | char filename[PATH_MAX]; | |
177 | FILE *fp; | |
1e6d5322 | 178 | int rc = 0; |
234fbbf5 ACM |
179 | |
180 | snprintf(filename, sizeof(filename), "/proc/%d/maps", pid); | |
181 | ||
182 | fp = fopen(filename, "r"); | |
183 | if (fp == NULL) { | |
184 | /* | |
185 | * We raced with a task exiting - just return: | |
186 | */ | |
187 | pr_debug("couldn't open %s\n", filename); | |
188 | return -1; | |
189 | } | |
190 | ||
3090ffb5 | 191 | event->header.type = PERF_RECORD_MMAP; |
9c90a61c | 192 | |
234fbbf5 | 193 | while (1) { |
60648033 NK |
194 | char bf[BUFSIZ]; |
195 | char prot[5]; | |
196 | char execname[PATH_MAX]; | |
197 | char anonstr[] = "//anon"; | |
234fbbf5 | 198 | size_t size; |
5c5e854b | 199 | ssize_t n; |
60648033 | 200 | |
234fbbf5 ACM |
201 | if (fgets(bf, sizeof(bf), fp) == NULL) |
202 | break; | |
203 | ||
60648033 NK |
204 | /* ensure null termination since stack will be reused. */ |
205 | strcpy(execname, ""); | |
206 | ||
234fbbf5 | 207 | /* 00400000-0040c000 r-xp 00000000 fd:01 41038 /bin/cat */ |
3090ffb5 SE |
208 | n = sscanf(bf, "%"PRIx64"-%"PRIx64" %s %"PRIx64" %*x:%*x %*u %s\n", |
209 | &event->mmap.start, &event->mmap.len, prot, | |
210 | &event->mmap.pgoff, | |
211 | execname); | |
9d4ecc88 DZ |
212 | /* |
213 | * Anon maps don't have the execname. | |
214 | */ | |
215 | if (n < 4) | |
5c5e854b | 216 | continue; |
62605dc5 ACM |
217 | /* |
218 | * Just like the kernel, see __perf_event_mmap in kernel/perf_event.c | |
219 | */ | |
220 | event->header.misc = PERF_RECORD_MISC_USER; | |
60648033 | 221 | |
62605dc5 ACM |
222 | if (prot[2] != 'x') { |
223 | if (!mmap_data || prot[0] != 'r') | |
224 | continue; | |
225 | ||
226 | event->header.misc |= PERF_RECORD_MISC_MMAP_DATA; | |
227 | } | |
60648033 NK |
228 | |
229 | if (!strcmp(execname, "")) | |
230 | strcpy(execname, anonstr); | |
231 | ||
232 | size = strlen(execname) + 1; | |
3090ffb5 | 233 | memcpy(event->mmap.filename, execname, size); |
60648033 | 234 | size = PERF_ALIGN(size, sizeof(u64)); |
3090ffb5 SE |
235 | event->mmap.len -= event->mmap.start; |
236 | event->mmap.header.size = (sizeof(event->mmap) - | |
237 | (sizeof(event->mmap.filename) - size)); | |
238 | memset(event->mmap.filename + size, 0, machine->id_hdr_size); | |
239 | event->mmap.header.size += machine->id_hdr_size; | |
240 | event->mmap.pid = tgid; | |
241 | event->mmap.tid = pid; | |
60648033 NK |
242 | |
243 | if (process(tool, event, &synth_sample, machine) != 0) { | |
244 | rc = -1; | |
245 | break; | |
234fbbf5 ACM |
246 | } |
247 | } | |
248 | ||
249 | fclose(fp); | |
1e6d5322 | 250 | return rc; |
234fbbf5 ACM |
251 | } |
252 | ||
45694aa7 | 253 | int perf_event__synthesize_modules(struct perf_tool *tool, |
d20deb64 | 254 | perf_event__handler_t process, |
8115d60c | 255 | struct machine *machine) |
b7cece76 | 256 | { |
1e6d5322 | 257 | int rc = 0; |
b7cece76 | 258 | struct rb_node *nd; |
23346f21 | 259 | struct map_groups *kmaps = &machine->kmaps; |
8115d60c | 260 | union perf_event *event = zalloc((sizeof(event->mmap) + |
743eb868 | 261 | machine->id_hdr_size)); |
9c90a61c ACM |
262 | if (event == NULL) { |
263 | pr_debug("Not enough memory synthesizing mmap event " | |
264 | "for kernel modules\n"); | |
265 | return -1; | |
266 | } | |
267 | ||
268 | event->header.type = PERF_RECORD_MMAP; | |
b7cece76 | 269 | |
a1645ce1 ZY |
270 | /* |
271 | * kernel uses 0 for user space maps, see kernel/perf_event.c | |
272 | * __perf_event_mmap | |
273 | */ | |
23346f21 | 274 | if (machine__is_host(machine)) |
9c90a61c | 275 | event->header.misc = PERF_RECORD_MISC_KERNEL; |
a1645ce1 | 276 | else |
9c90a61c | 277 | event->header.misc = PERF_RECORD_MISC_GUEST_KERNEL; |
a1645ce1 ZY |
278 | |
279 | for (nd = rb_first(&kmaps->maps[MAP__FUNCTION]); | |
b7cece76 | 280 | nd; nd = rb_next(nd)) { |
b7cece76 ACM |
281 | size_t size; |
282 | struct map *pos = rb_entry(nd, struct map, rb_node); | |
283 | ||
284 | if (pos->dso->kernel) | |
285 | continue; | |
286 | ||
9ac3e487 | 287 | size = PERF_ALIGN(pos->dso->long_name_len + 1, sizeof(u64)); |
9c90a61c ACM |
288 | event->mmap.header.type = PERF_RECORD_MMAP; |
289 | event->mmap.header.size = (sizeof(event->mmap) - | |
290 | (sizeof(event->mmap.filename) - size)); | |
743eb868 ACM |
291 | memset(event->mmap.filename + size, 0, machine->id_hdr_size); |
292 | event->mmap.header.size += machine->id_hdr_size; | |
9c90a61c ACM |
293 | event->mmap.start = pos->start; |
294 | event->mmap.len = pos->end - pos->start; | |
295 | event->mmap.pid = machine->pid; | |
296 | ||
297 | memcpy(event->mmap.filename, pos->dso->long_name, | |
b7cece76 | 298 | pos->dso->long_name_len + 1); |
1e6d5322 DA |
299 | if (process(tool, event, &synth_sample, machine) != 0) { |
300 | rc = -1; | |
301 | break; | |
302 | } | |
b7cece76 ACM |
303 | } |
304 | ||
9c90a61c | 305 | free(event); |
1e6d5322 | 306 | return rc; |
b7cece76 ACM |
307 | } |
308 | ||
8115d60c ACM |
309 | static int __event__synthesize_thread(union perf_event *comm_event, |
310 | union perf_event *mmap_event, | |
defd8d38 DA |
311 | pid_t pid, int full, |
312 | perf_event__handler_t process, | |
45694aa7 | 313 | struct perf_tool *tool, |
62605dc5 | 314 | struct machine *machine, bool mmap_data) |
234fbbf5 | 315 | { |
defd8d38 | 316 | pid_t tgid = perf_event__synthesize_comm(tool, comm_event, pid, full, |
743eb868 | 317 | process, machine); |
234fbbf5 ACM |
318 | if (tgid == -1) |
319 | return -1; | |
45694aa7 | 320 | return perf_event__synthesize_mmap_events(tool, mmap_event, pid, tgid, |
62605dc5 | 321 | process, machine, mmap_data); |
234fbbf5 ACM |
322 | } |
323 | ||
45694aa7 | 324 | int perf_event__synthesize_thread_map(struct perf_tool *tool, |
d20deb64 | 325 | struct thread_map *threads, |
7c940c18 | 326 | perf_event__handler_t process, |
62605dc5 ACM |
327 | struct machine *machine, |
328 | bool mmap_data) | |
9c90a61c | 329 | { |
8115d60c | 330 | union perf_event *comm_event, *mmap_event; |
defd8d38 | 331 | int err = -1, thread, j; |
9c90a61c | 332 | |
743eb868 | 333 | comm_event = malloc(sizeof(comm_event->comm) + machine->id_hdr_size); |
9c90a61c ACM |
334 | if (comm_event == NULL) |
335 | goto out; | |
336 | ||
743eb868 | 337 | mmap_event = malloc(sizeof(mmap_event->mmap) + machine->id_hdr_size); |
9c90a61c ACM |
338 | if (mmap_event == NULL) |
339 | goto out_free_comm; | |
340 | ||
401b8e13 ACM |
341 | err = 0; |
342 | for (thread = 0; thread < threads->nr; ++thread) { | |
343 | if (__event__synthesize_thread(comm_event, mmap_event, | |
defd8d38 | 344 | threads->map[thread], 0, |
62605dc5 ACM |
345 | process, tool, machine, |
346 | mmap_data)) { | |
401b8e13 ACM |
347 | err = -1; |
348 | break; | |
349 | } | |
defd8d38 DA |
350 | |
351 | /* | |
352 | * comm.pid is set to thread group id by | |
353 | * perf_event__synthesize_comm | |
354 | */ | |
355 | if ((int) comm_event->comm.pid != threads->map[thread]) { | |
356 | bool need_leader = true; | |
357 | ||
358 | /* is thread group leader in thread_map? */ | |
359 | for (j = 0; j < threads->nr; ++j) { | |
360 | if ((int) comm_event->comm.pid == threads->map[j]) { | |
361 | need_leader = false; | |
362 | break; | |
363 | } | |
364 | } | |
365 | ||
366 | /* if not, generate events for it */ | |
367 | if (need_leader && | |
62605dc5 ACM |
368 | __event__synthesize_thread(comm_event, mmap_event, |
369 | comm_event->comm.pid, 0, | |
370 | process, tool, machine, | |
371 | mmap_data)) { | |
defd8d38 DA |
372 | err = -1; |
373 | break; | |
374 | } | |
375 | } | |
401b8e13 | 376 | } |
9c90a61c ACM |
377 | free(mmap_event); |
378 | out_free_comm: | |
379 | free(comm_event); | |
380 | out: | |
381 | return err; | |
382 | } | |
383 | ||
45694aa7 | 384 | int perf_event__synthesize_threads(struct perf_tool *tool, |
d20deb64 | 385 | perf_event__handler_t process, |
62605dc5 | 386 | struct machine *machine, bool mmap_data) |
234fbbf5 ACM |
387 | { |
388 | DIR *proc; | |
389 | struct dirent dirent, *next; | |
8115d60c | 390 | union perf_event *comm_event, *mmap_event; |
9c90a61c ACM |
391 | int err = -1; |
392 | ||
743eb868 | 393 | comm_event = malloc(sizeof(comm_event->comm) + machine->id_hdr_size); |
9c90a61c ACM |
394 | if (comm_event == NULL) |
395 | goto out; | |
396 | ||
743eb868 | 397 | mmap_event = malloc(sizeof(mmap_event->mmap) + machine->id_hdr_size); |
9c90a61c ACM |
398 | if (mmap_event == NULL) |
399 | goto out_free_comm; | |
234fbbf5 ACM |
400 | |
401 | proc = opendir("/proc"); | |
9c90a61c ACM |
402 | if (proc == NULL) |
403 | goto out_free_mmap; | |
234fbbf5 ACM |
404 | |
405 | while (!readdir_r(proc, &dirent, &next) && next) { | |
406 | char *end; | |
407 | pid_t pid = strtol(dirent.d_name, &end, 10); | |
408 | ||
409 | if (*end) /* only interested in proper numerical dirents */ | |
410 | continue; | |
ba361c92 ACM |
411 | /* |
412 | * We may race with exiting thread, so don't stop just because | |
413 | * one thread couldn't be synthesized. | |
414 | */ | |
415 | __event__synthesize_thread(comm_event, mmap_event, pid, 1, | |
62605dc5 | 416 | process, tool, machine, mmap_data); |
234fbbf5 ACM |
417 | } |
418 | ||
9c90a61c | 419 | err = 0; |
1e6d5322 | 420 | closedir(proc); |
9c90a61c ACM |
421 | out_free_mmap: |
422 | free(mmap_event); | |
423 | out_free_comm: | |
424 | free(comm_event); | |
425 | out: | |
426 | return err; | |
234fbbf5 | 427 | } |
62daacb5 | 428 | |
56b03f3c ACM |
429 | struct process_symbol_args { |
430 | const char *name; | |
431 | u64 start; | |
432 | }; | |
433 | ||
3b01a413 | 434 | static int find_symbol_cb(void *arg, const char *name, char type, |
82151520 | 435 | u64 start) |
56b03f3c ACM |
436 | { |
437 | struct process_symbol_args *args = arg; | |
438 | ||
881516eb ACM |
439 | /* |
440 | * Must be a function or at least an alias, as in PARISC64, where "_text" is | |
441 | * an 'A' to the same address as "_stext". | |
442 | */ | |
443 | if (!(symbol_type__is_a(type, MAP__FUNCTION) || | |
444 | type == 'A') || strcmp(name, args->name)) | |
56b03f3c ACM |
445 | return 0; |
446 | ||
447 | args->start = start; | |
448 | return 1; | |
449 | } | |
450 | ||
45694aa7 | 451 | int perf_event__synthesize_kernel_mmap(struct perf_tool *tool, |
d20deb64 | 452 | perf_event__handler_t process, |
8115d60c ACM |
453 | struct machine *machine, |
454 | const char *symbol_name) | |
56b03f3c ACM |
455 | { |
456 | size_t size; | |
a1645ce1 ZY |
457 | const char *filename, *mmap_name; |
458 | char path[PATH_MAX]; | |
459 | char name_buff[PATH_MAX]; | |
460 | struct map *map; | |
9c90a61c | 461 | int err; |
56b03f3c ACM |
462 | /* |
463 | * We should get this from /sys/kernel/sections/.text, but till that is | |
464 | * available use this, and after it is use this as a fallback for older | |
465 | * kernels. | |
466 | */ | |
467 | struct process_symbol_args args = { .name = symbol_name, }; | |
8115d60c | 468 | union perf_event *event = zalloc((sizeof(event->mmap) + |
743eb868 | 469 | machine->id_hdr_size)); |
9c90a61c ACM |
470 | if (event == NULL) { |
471 | pr_debug("Not enough memory synthesizing mmap event " | |
472 | "for kernel modules\n"); | |
473 | return -1; | |
474 | } | |
56b03f3c | 475 | |
48ea8f54 | 476 | mmap_name = machine__mmap_name(machine, name_buff, sizeof(name_buff)); |
23346f21 | 477 | if (machine__is_host(machine)) { |
a1645ce1 ZY |
478 | /* |
479 | * kernel uses PERF_RECORD_MISC_USER for user space maps, | |
480 | * see kernel/perf_event.c __perf_event_mmap | |
481 | */ | |
9c90a61c | 482 | event->header.misc = PERF_RECORD_MISC_KERNEL; |
a1645ce1 ZY |
483 | filename = "/proc/kallsyms"; |
484 | } else { | |
9c90a61c | 485 | event->header.misc = PERF_RECORD_MISC_GUEST_KERNEL; |
23346f21 | 486 | if (machine__is_default_guest(machine)) |
a1645ce1 ZY |
487 | filename = (char *) symbol_conf.default_guest_kallsyms; |
488 | else { | |
23346f21 | 489 | sprintf(path, "%s/proc/kallsyms", machine->root_dir); |
a1645ce1 ZY |
490 | filename = path; |
491 | } | |
492 | } | |
493 | ||
0b9e01a4 TJ |
494 | if (kallsyms__parse(filename, &args, find_symbol_cb) <= 0) { |
495 | free(event); | |
56b03f3c | 496 | return -ENOENT; |
0b9e01a4 | 497 | } |
56b03f3c | 498 | |
23346f21 | 499 | map = machine->vmlinux_maps[MAP__FUNCTION]; |
9c90a61c | 500 | size = snprintf(event->mmap.filename, sizeof(event->mmap.filename), |
a1645ce1 | 501 | "%s%s", mmap_name, symbol_name) + 1; |
9ac3e487 | 502 | size = PERF_ALIGN(size, sizeof(u64)); |
9c90a61c ACM |
503 | event->mmap.header.type = PERF_RECORD_MMAP; |
504 | event->mmap.header.size = (sizeof(event->mmap) - | |
743eb868 | 505 | (sizeof(event->mmap.filename) - size) + machine->id_hdr_size); |
9c90a61c ACM |
506 | event->mmap.pgoff = args.start; |
507 | event->mmap.start = map->start; | |
508 | event->mmap.len = map->end - event->mmap.start; | |
509 | event->mmap.pid = machine->pid; | |
510 | ||
45694aa7 | 511 | err = process(tool, event, &synth_sample, machine); |
9c90a61c ACM |
512 | free(event); |
513 | ||
514 | return err; | |
56b03f3c ACM |
515 | } |
516 | ||
482ad897 ACM |
517 | size_t perf_event__fprintf_comm(union perf_event *event, FILE *fp) |
518 | { | |
519 | return fprintf(fp, ": %s:%d\n", event->comm.comm, event->comm.tid); | |
520 | } | |
521 | ||
1d037ca1 | 522 | int perf_event__process_comm(struct perf_tool *tool __maybe_unused, |
d20deb64 | 523 | union perf_event *event, |
162f0bef | 524 | struct perf_sample *sample, |
743eb868 | 525 | struct machine *machine) |
62daacb5 | 526 | { |
162f0bef | 527 | return machine__process_comm_event(machine, event, sample); |
62daacb5 ACM |
528 | } |
529 | ||
1d037ca1 | 530 | int perf_event__process_lost(struct perf_tool *tool __maybe_unused, |
d20deb64 | 531 | union perf_event *event, |
162f0bef | 532 | struct perf_sample *sample, |
b0a7d1a0 | 533 | struct machine *machine) |
62daacb5 | 534 | { |
162f0bef | 535 | return machine__process_lost_event(machine, event, sample); |
a1645ce1 | 536 | } |
b7cece76 | 537 | |
482ad897 ACM |
538 | size_t perf_event__fprintf_mmap(union perf_event *event, FILE *fp) |
539 | { | |
62605dc5 | 540 | return fprintf(fp, " %d/%d: [%#" PRIx64 "(%#" PRIx64 ") @ %#" PRIx64 "]: %c %s\n", |
482ad897 | 541 | event->mmap.pid, event->mmap.tid, event->mmap.start, |
62605dc5 ACM |
542 | event->mmap.len, event->mmap.pgoff, |
543 | (event->header.misc & PERF_RECORD_MISC_MMAP_DATA) ? 'r' : 'x', | |
544 | event->mmap.filename); | |
482ad897 ACM |
545 | } |
546 | ||
5c5e854b SE |
547 | size_t perf_event__fprintf_mmap2(union perf_event *event, FILE *fp) |
548 | { | |
549 | return fprintf(fp, " %d/%d: [%#" PRIx64 "(%#" PRIx64 ") @ %#" PRIx64 | |
62605dc5 | 550 | " %02x:%02x %"PRIu64" %"PRIu64"]: %c %s\n", |
5c5e854b SE |
551 | event->mmap2.pid, event->mmap2.tid, event->mmap2.start, |
552 | event->mmap2.len, event->mmap2.pgoff, event->mmap2.maj, | |
553 | event->mmap2.min, event->mmap2.ino, | |
554 | event->mmap2.ino_generation, | |
62605dc5 | 555 | (event->header.misc & PERF_RECORD_MISC_MMAP_DATA) ? 'r' : 'x', |
5c5e854b SE |
556 | event->mmap2.filename); |
557 | } | |
558 | ||
b0a7d1a0 | 559 | int perf_event__process_mmap(struct perf_tool *tool __maybe_unused, |
d20deb64 | 560 | union perf_event *event, |
162f0bef | 561 | struct perf_sample *sample, |
743eb868 | 562 | struct machine *machine) |
a1645ce1 | 563 | { |
162f0bef | 564 | return machine__process_mmap_event(machine, event, sample); |
62daacb5 ACM |
565 | } |
566 | ||
5c5e854b SE |
567 | int perf_event__process_mmap2(struct perf_tool *tool __maybe_unused, |
568 | union perf_event *event, | |
162f0bef | 569 | struct perf_sample *sample, |
5c5e854b SE |
570 | struct machine *machine) |
571 | { | |
162f0bef | 572 | return machine__process_mmap2_event(machine, event, sample); |
5c5e854b SE |
573 | } |
574 | ||
482ad897 ACM |
575 | size_t perf_event__fprintf_task(union perf_event *event, FILE *fp) |
576 | { | |
577 | return fprintf(fp, "(%d:%d):(%d:%d)\n", | |
578 | event->fork.pid, event->fork.tid, | |
579 | event->fork.ppid, event->fork.ptid); | |
580 | } | |
581 | ||
f62d3f0f | 582 | int perf_event__process_fork(struct perf_tool *tool __maybe_unused, |
d20deb64 | 583 | union perf_event *event, |
162f0bef | 584 | struct perf_sample *sample, |
f62d3f0f | 585 | struct machine *machine) |
62daacb5 | 586 | { |
162f0bef | 587 | return machine__process_fork_event(machine, event, sample); |
62daacb5 | 588 | } |
1ed091c4 | 589 | |
f62d3f0f ACM |
590 | int perf_event__process_exit(struct perf_tool *tool __maybe_unused, |
591 | union perf_event *event, | |
162f0bef | 592 | struct perf_sample *sample, |
f62d3f0f ACM |
593 | struct machine *machine) |
594 | { | |
162f0bef | 595 | return machine__process_exit_event(machine, event, sample); |
f62d3f0f ACM |
596 | } |
597 | ||
482ad897 ACM |
598 | size_t perf_event__fprintf(union perf_event *event, FILE *fp) |
599 | { | |
600 | size_t ret = fprintf(fp, "PERF_RECORD_%s", | |
601 | perf_event__name(event->header.type)); | |
602 | ||
603 | switch (event->header.type) { | |
604 | case PERF_RECORD_COMM: | |
605 | ret += perf_event__fprintf_comm(event, fp); | |
606 | break; | |
607 | case PERF_RECORD_FORK: | |
608 | case PERF_RECORD_EXIT: | |
609 | ret += perf_event__fprintf_task(event, fp); | |
610 | break; | |
611 | case PERF_RECORD_MMAP: | |
612 | ret += perf_event__fprintf_mmap(event, fp); | |
613 | break; | |
5c5e854b SE |
614 | case PERF_RECORD_MMAP2: |
615 | ret += perf_event__fprintf_mmap2(event, fp); | |
616 | break; | |
482ad897 ACM |
617 | default: |
618 | ret += fprintf(fp, "\n"); | |
619 | } | |
620 | ||
621 | return ret; | |
622 | } | |
623 | ||
b0a7d1a0 ACM |
624 | int perf_event__process(struct perf_tool *tool __maybe_unused, |
625 | union perf_event *event, | |
162f0bef | 626 | struct perf_sample *sample, |
b0a7d1a0 | 627 | struct machine *machine) |
b83f920e | 628 | { |
162f0bef | 629 | return machine__process_event(machine, event, sample); |
b83f920e SD |
630 | } |
631 | ||
316c7136 | 632 | void thread__find_addr_map(struct thread *thread, |
743eb868 ACM |
633 | struct machine *machine, u8 cpumode, |
634 | enum map_type type, u64 addr, | |
326f59bf | 635 | struct addr_location *al) |
1ed091c4 | 636 | { |
316c7136 | 637 | struct map_groups *mg = &thread->mg; |
5b7ba82a | 638 | bool load_map = false; |
1ed091c4 | 639 | |
316c7136 | 640 | al->thread = thread; |
1ed091c4 | 641 | al->addr = addr; |
a1645ce1 ZY |
642 | al->cpumode = cpumode; |
643 | al->filtered = false; | |
1ed091c4 | 644 | |
743eb868 ACM |
645 | if (machine == NULL) { |
646 | al->map = NULL; | |
647 | return; | |
648 | } | |
649 | ||
a1645ce1 | 650 | if (cpumode == PERF_RECORD_MISC_KERNEL && perf_host) { |
1ed091c4 | 651 | al->level = 'k'; |
23346f21 | 652 | mg = &machine->kmaps; |
5b7ba82a | 653 | load_map = true; |
a1645ce1 | 654 | } else if (cpumode == PERF_RECORD_MISC_USER && perf_host) { |
1ed091c4 | 655 | al->level = '.'; |
a1645ce1 ZY |
656 | } else if (cpumode == PERF_RECORD_MISC_GUEST_KERNEL && perf_guest) { |
657 | al->level = 'g'; | |
23346f21 | 658 | mg = &machine->kmaps; |
5b7ba82a | 659 | load_map = true; |
a1645ce1 ZY |
660 | } else { |
661 | /* | |
662 | * 'u' means guest os user space. | |
663 | * TODO: We don't support guest user space. Might support late. | |
664 | */ | |
665 | if (cpumode == PERF_RECORD_MISC_GUEST_USER && perf_guest) | |
666 | al->level = 'u'; | |
667 | else | |
668 | al->level = 'H'; | |
1ed091c4 | 669 | al->map = NULL; |
a1645ce1 ZY |
670 | |
671 | if ((cpumode == PERF_RECORD_MISC_GUEST_USER || | |
672 | cpumode == PERF_RECORD_MISC_GUEST_KERNEL) && | |
673 | !perf_guest) | |
674 | al->filtered = true; | |
675 | if ((cpumode == PERF_RECORD_MISC_USER || | |
676 | cpumode == PERF_RECORD_MISC_KERNEL) && | |
677 | !perf_host) | |
678 | al->filtered = true; | |
679 | ||
1ed091c4 ACM |
680 | return; |
681 | } | |
682 | try_again: | |
9958e1f0 | 683 | al->map = map_groups__find(mg, type, al->addr); |
1ed091c4 ACM |
684 | if (al->map == NULL) { |
685 | /* | |
686 | * If this is outside of all known maps, and is a negative | |
687 | * address, try to look it up in the kernel dso, as it might be | |
688 | * a vsyscall or vdso (which executes in user-mode). | |
689 | * | |
690 | * XXX This is nasty, we should have a symbol list in the | |
691 | * "[vdso]" dso, but for now lets use the old trick of looking | |
692 | * in the whole kernel symbol list. | |
693 | */ | |
a1645ce1 | 694 | if ((long long)al->addr < 0 && |
6c6804fb | 695 | cpumode == PERF_RECORD_MISC_USER && |
23346f21 ACM |
696 | machine && mg != &machine->kmaps) { |
697 | mg = &machine->kmaps; | |
1ed091c4 ACM |
698 | goto try_again; |
699 | } | |
5b7ba82a AH |
700 | } else { |
701 | /* | |
702 | * Kernel maps might be changed when loading symbols so loading | |
703 | * must be done prior to using kernel maps. | |
704 | */ | |
705 | if (load_map) | |
326f59bf | 706 | map__load(al->map, machine->symbol_filter); |
1ed091c4 | 707 | al->addr = al->map->map_ip(al->map, al->addr); |
5b7ba82a | 708 | } |
59ee68ec ACM |
709 | } |
710 | ||
743eb868 ACM |
711 | void thread__find_addr_location(struct thread *thread, struct machine *machine, |
712 | u8 cpumode, enum map_type type, u64 addr, | |
61710bde | 713 | struct addr_location *al) |
59ee68ec | 714 | { |
326f59bf | 715 | thread__find_addr_map(thread, machine, cpumode, type, addr, al); |
59ee68ec | 716 | if (al->map != NULL) |
61710bde AH |
717 | al->sym = map__find_symbol(al->map, al->addr, |
718 | machine->symbol_filter); | |
59ee68ec ACM |
719 | else |
720 | al->sym = NULL; | |
1ed091c4 ACM |
721 | } |
722 | ||
8115d60c | 723 | int perf_event__preprocess_sample(const union perf_event *event, |
743eb868 | 724 | struct machine *machine, |
8115d60c | 725 | struct addr_location *al, |
e44baa3e | 726 | struct perf_sample *sample) |
1ed091c4 | 727 | { |
8115d60c | 728 | u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; |
ef89325f AH |
729 | struct thread *thread = machine__findnew_thread(machine, sample->pid, |
730 | sample->pid); | |
41a37e20 | 731 | |
1ed091c4 ACM |
732 | if (thread == NULL) |
733 | return -1; | |
734 | ||
c410a338 | 735 | if (symbol_conf.comm_list && |
b9c5143a | 736 | !strlist__has_entry(symbol_conf.comm_list, thread__comm_str(thread))) |
c410a338 ACM |
737 | goto out_filtered; |
738 | ||
b9c5143a | 739 | dump_printf(" ... thread: %s:%d\n", thread__comm_str(thread), thread->tid); |
1f626bc3 | 740 | /* |
743eb868 | 741 | * Have we already created the kernel maps for this machine? |
1f626bc3 ACM |
742 | * |
743 | * This should have happened earlier, when we processed the kernel MMAP | |
744 | * events, but for older perf.data files there was no such thing, so do | |
745 | * it now. | |
746 | */ | |
747 | if (cpumode == PERF_RECORD_MISC_KERNEL && | |
743eb868 ACM |
748 | machine->vmlinux_maps[MAP__FUNCTION] == NULL) |
749 | machine__create_kernel_maps(machine); | |
1ed091c4 | 750 | |
743eb868 | 751 | thread__find_addr_map(thread, machine, cpumode, MAP__FUNCTION, |
ef89325f | 752 | sample->ip, al); |
1ed091c4 ACM |
753 | dump_printf(" ...... dso: %s\n", |
754 | al->map ? al->map->dso->long_name : | |
755 | al->level == 'H' ? "[hypervisor]" : "<not found>"); | |
96415e4d | 756 | al->sym = NULL; |
8d50e5b4 | 757 | al->cpu = sample->cpu; |
96415e4d ACM |
758 | |
759 | if (al->map) { | |
cb8f4e9a NK |
760 | struct dso *dso = al->map->dso; |
761 | ||
96415e4d | 762 | if (symbol_conf.dso_list && |
cb8f4e9a NK |
763 | (!dso || !(strlist__has_entry(symbol_conf.dso_list, |
764 | dso->short_name) || | |
765 | (dso->short_name != dso->long_name && | |
766 | strlist__has_entry(symbol_conf.dso_list, | |
767 | dso->long_name))))) | |
96415e4d | 768 | goto out_filtered; |
96415e4d | 769 | |
e44baa3e AH |
770 | al->sym = map__find_symbol(al->map, al->addr, |
771 | machine->symbol_filter); | |
96415e4d | 772 | } |
c410a338 | 773 | |
1500b93b FT |
774 | if (symbol_conf.sym_list && |
775 | (!al->sym || !strlist__has_entry(symbol_conf.sym_list, | |
776 | al->sym->name))) | |
c410a338 ACM |
777 | goto out_filtered; |
778 | ||
c410a338 ACM |
779 | return 0; |
780 | ||
781 | out_filtered: | |
782 | al->filtered = true; | |
1ed091c4 ACM |
783 | return 0; |
784 | } |