Commit | Line | Data |
---|---|---|
234fbbf5 | 1 | #include <linux/types.h> |
7ef80703 | 2 | #include <sys/mman.h> |
234fbbf5 ACM |
3 | #include "event.h" |
4 | #include "debug.h" | |
b3cef7f6 | 5 | #include "hist.h" |
f62d3f0f | 6 | #include "machine.h" |
c410a338 | 7 | #include "sort.h" |
234fbbf5 | 8 | #include "string.h" |
c410a338 | 9 | #include "strlist.h" |
62daacb5 | 10 | #include "thread.h" |
7c940c18 | 11 | #include "thread_map.h" |
c506c96b | 12 | #include "symbol/kallsyms.h" |
67424342 JO |
13 | #include "asm/bug.h" |
14 | #include "stat.h" | |
234fbbf5 | 15 | |
8115d60c | 16 | static const char *perf_event__names[] = { |
3cb6d154 FW |
17 | [0] = "TOTAL", |
18 | [PERF_RECORD_MMAP] = "MMAP", | |
5c5e854b | 19 | [PERF_RECORD_MMAP2] = "MMAP2", |
3cb6d154 FW |
20 | [PERF_RECORD_LOST] = "LOST", |
21 | [PERF_RECORD_COMM] = "COMM", | |
22 | [PERF_RECORD_EXIT] = "EXIT", | |
23 | [PERF_RECORD_THROTTLE] = "THROTTLE", | |
24 | [PERF_RECORD_UNTHROTTLE] = "UNTHROTTLE", | |
25 | [PERF_RECORD_FORK] = "FORK", | |
26 | [PERF_RECORD_READ] = "READ", | |
27 | [PERF_RECORD_SAMPLE] = "SAMPLE", | |
4a96f7a0 | 28 | [PERF_RECORD_AUX] = "AUX", |
0ad21f68 | 29 | [PERF_RECORD_ITRACE_START] = "ITRACE_START", |
c4937a91 | 30 | [PERF_RECORD_LOST_SAMPLES] = "LOST_SAMPLES", |
0286039f AH |
31 | [PERF_RECORD_SWITCH] = "SWITCH", |
32 | [PERF_RECORD_SWITCH_CPU_WIDE] = "SWITCH_CPU_WIDE", | |
3cb6d154 FW |
33 | [PERF_RECORD_HEADER_ATTR] = "ATTR", |
34 | [PERF_RECORD_HEADER_EVENT_TYPE] = "EVENT_TYPE", | |
35 | [PERF_RECORD_HEADER_TRACING_DATA] = "TRACING_DATA", | |
36 | [PERF_RECORD_HEADER_BUILD_ID] = "BUILD_ID", | |
37 | [PERF_RECORD_FINISHED_ROUND] = "FINISHED_ROUND", | |
3c659eed | 38 | [PERF_RECORD_ID_INDEX] = "ID_INDEX", |
a16ac023 AH |
39 | [PERF_RECORD_AUXTRACE_INFO] = "AUXTRACE_INFO", |
40 | [PERF_RECORD_AUXTRACE] = "AUXTRACE", | |
e9bf54d2 | 41 | [PERF_RECORD_AUXTRACE_ERROR] = "AUXTRACE_ERROR", |
5f3339d2 | 42 | [PERF_RECORD_THREAD_MAP] = "THREAD_MAP", |
6640b6c2 | 43 | [PERF_RECORD_CPU_MAP] = "CPU_MAP", |
374fb9e3 | 44 | [PERF_RECORD_STAT_CONFIG] = "STAT_CONFIG", |
d80518c9 | 45 | [PERF_RECORD_STAT] = "STAT", |
2d8f0f18 | 46 | [PERF_RECORD_STAT_ROUND] = "STAT_ROUND", |
ffe77725 | 47 | [PERF_RECORD_EVENT_UPDATE] = "EVENT_UPDATE", |
c8446b9b ACM |
48 | }; |
49 | ||
8115d60c | 50 | const char *perf_event__name(unsigned int id) |
3835bc00 | 51 | { |
8115d60c | 52 | if (id >= ARRAY_SIZE(perf_event__names)) |
3835bc00 | 53 | return "INVALID"; |
8115d60c | 54 | if (!perf_event__names[id]) |
3835bc00 | 55 | return "UNKNOWN"; |
8115d60c | 56 | return perf_event__names[id]; |
3835bc00 TG |
57 | } |
58 | ||
8d50e5b4 | 59 | static struct perf_sample synth_sample = { |
640c03ce ACM |
60 | .pid = -1, |
61 | .tid = -1, | |
62 | .time = -1, | |
63 | .stream_id = -1, | |
64 | .cpu = -1, | |
65 | .period = 1, | |
66 | }; | |
67 | ||
5aa0b030 DA |
68 | /* |
69 | * Assumes that the first 4095 bytes of /proc/pid/stat contains | |
ca6c41c5 | 70 | * the comm, tgid and ppid. |
5aa0b030 | 71 | */ |
ca6c41c5 DA |
72 | static int perf_event__get_comm_ids(pid_t pid, char *comm, size_t len, |
73 | pid_t *tgid, pid_t *ppid) | |
234fbbf5 | 74 | { |
234fbbf5 | 75 | char filename[PATH_MAX]; |
5aa0b030 DA |
76 | char bf[4096]; |
77 | int fd; | |
38349665 AH |
78 | size_t size = 0; |
79 | ssize_t n; | |
ca6c41c5 DA |
80 | char *nl, *name, *tgids, *ppids; |
81 | ||
82 | *tgid = -1; | |
83 | *ppid = -1; | |
234fbbf5 ACM |
84 | |
85 | snprintf(filename, sizeof(filename), "/proc/%d/status", pid); | |
86 | ||
5aa0b030 DA |
87 | fd = open(filename, O_RDONLY); |
88 | if (fd < 0) { | |
234fbbf5 | 89 | pr_debug("couldn't open %s\n", filename); |
ca6c41c5 | 90 | return -1; |
234fbbf5 ACM |
91 | } |
92 | ||
5aa0b030 DA |
93 | n = read(fd, bf, sizeof(bf) - 1); |
94 | close(fd); | |
95 | if (n <= 0) { | |
ca6c41c5 | 96 | pr_warning("Couldn't get COMM, tigd and ppid for pid %d\n", |
5aa0b030 DA |
97 | pid); |
98 | return -1; | |
234fbbf5 | 99 | } |
5aa0b030 | 100 | bf[n] = '\0'; |
234fbbf5 | 101 | |
5aa0b030 DA |
102 | name = strstr(bf, "Name:"); |
103 | tgids = strstr(bf, "Tgid:"); | |
ca6c41c5 | 104 | ppids = strstr(bf, "PPid:"); |
5aa0b030 DA |
105 | |
106 | if (name) { | |
107 | name += 5; /* strlen("Name:") */ | |
108 | ||
109 | while (*name && isspace(*name)) | |
110 | ++name; | |
111 | ||
112 | nl = strchr(name, '\n'); | |
113 | if (nl) | |
114 | *nl = '\0'; | |
115 | ||
116 | size = strlen(name); | |
117 | if (size >= len) | |
118 | size = len - 1; | |
119 | memcpy(comm, name, size); | |
120 | comm[size] = '\0'; | |
121 | } else { | |
122 | pr_debug("Name: string not found for pid %d\n", pid); | |
123 | } | |
124 | ||
125 | if (tgids) { | |
126 | tgids += 5; /* strlen("Tgid:") */ | |
ca6c41c5 | 127 | *tgid = atoi(tgids); |
5aa0b030 DA |
128 | } else { |
129 | pr_debug("Tgid: string not found for pid %d\n", pid); | |
130 | } | |
f5faf726 | 131 | |
ca6c41c5 DA |
132 | if (ppids) { |
133 | ppids += 5; /* strlen("PPid:") */ | |
134 | *ppid = atoi(ppids); | |
135 | } else { | |
136 | pr_debug("PPid: string not found for pid %d\n", pid); | |
137 | } | |
138 | ||
139 | return 0; | |
f5faf726 DA |
140 | } |
141 | ||
ca6c41c5 DA |
142 | static int perf_event__prepare_comm(union perf_event *event, pid_t pid, |
143 | struct machine *machine, | |
144 | pid_t *tgid, pid_t *ppid) | |
f5faf726 | 145 | { |
f5faf726 | 146 | size_t size; |
ca6c41c5 DA |
147 | |
148 | *ppid = -1; | |
f5faf726 DA |
149 | |
150 | memset(&event->comm, 0, sizeof(event->comm)); | |
151 | ||
ca6c41c5 DA |
152 | if (machine__is_host(machine)) { |
153 | if (perf_event__get_comm_ids(pid, event->comm.comm, | |
154 | sizeof(event->comm.comm), | |
155 | tgid, ppid) != 0) { | |
156 | return -1; | |
157 | } | |
158 | } else { | |
159 | *tgid = machine->pid; | |
160 | } | |
f5db57c4 | 161 | |
ca6c41c5 DA |
162 | if (*tgid < 0) |
163 | return -1; | |
f5faf726 | 164 | |
ca6c41c5 | 165 | event->comm.pid = *tgid; |
9c90a61c | 166 | event->comm.header.type = PERF_RECORD_COMM; |
f5faf726 DA |
167 | |
168 | size = strlen(event->comm.comm) + 1; | |
9ac3e487 | 169 | size = PERF_ALIGN(size, sizeof(u64)); |
743eb868 | 170 | memset(event->comm.comm + size, 0, machine->id_hdr_size); |
9c90a61c ACM |
171 | event->comm.header.size = (sizeof(event->comm) - |
172 | (sizeof(event->comm.comm) - size) + | |
743eb868 | 173 | machine->id_hdr_size); |
bfd66cc7 | 174 | event->comm.tid = pid; |
ca6c41c5 DA |
175 | |
176 | return 0; | |
4aa5f4f7 ACM |
177 | } |
178 | ||
e803cf97 | 179 | pid_t perf_event__synthesize_comm(struct perf_tool *tool, |
4aa5f4f7 ACM |
180 | union perf_event *event, pid_t pid, |
181 | perf_event__handler_t process, | |
182 | struct machine *machine) | |
183 | { | |
ca6c41c5 | 184 | pid_t tgid, ppid; |
4aa5f4f7 | 185 | |
ca6c41c5 DA |
186 | if (perf_event__prepare_comm(event, pid, machine, &tgid, &ppid) != 0) |
187 | return -1; | |
f5faf726 | 188 | |
bfd66cc7 DZ |
189 | if (process(tool, event, &synth_sample, machine) != 0) |
190 | return -1; | |
234fbbf5 | 191 | |
9c90a61c | 192 | return tgid; |
234fbbf5 ACM |
193 | } |
194 | ||
363b785f | 195 | static int perf_event__synthesize_fork(struct perf_tool *tool, |
ca6c41c5 DA |
196 | union perf_event *event, |
197 | pid_t pid, pid_t tgid, pid_t ppid, | |
198 | perf_event__handler_t process, | |
363b785f DZ |
199 | struct machine *machine) |
200 | { | |
201 | memset(&event->fork, 0, sizeof(event->fork) + machine->id_hdr_size); | |
202 | ||
7764a385 DA |
203 | /* |
204 | * for main thread set parent to ppid from status file. For other | |
205 | * threads set parent pid to main thread. ie., assume main thread | |
206 | * spawns all threads in a process | |
207 | */ | |
208 | if (tgid == pid) { | |
209 | event->fork.ppid = ppid; | |
210 | event->fork.ptid = ppid; | |
211 | } else { | |
212 | event->fork.ppid = tgid; | |
213 | event->fork.ptid = tgid; | |
214 | } | |
363b785f DZ |
215 | event->fork.pid = tgid; |
216 | event->fork.tid = pid; | |
217 | event->fork.header.type = PERF_RECORD_FORK; | |
218 | ||
219 | event->fork.header.size = (sizeof(event->fork) + machine->id_hdr_size); | |
220 | ||
221 | if (process(tool, event, &synth_sample, machine) != 0) | |
222 | return -1; | |
223 | ||
224 | return 0; | |
225 | } | |
226 | ||
a18382b6 JO |
227 | int perf_event__synthesize_mmap_events(struct perf_tool *tool, |
228 | union perf_event *event, | |
229 | pid_t pid, pid_t tgid, | |
230 | perf_event__handler_t process, | |
231 | struct machine *machine, | |
9d9cad76 KL |
232 | bool mmap_data, |
233 | unsigned int proc_map_timeout) | |
234fbbf5 ACM |
234 | { |
235 | char filename[PATH_MAX]; | |
236 | FILE *fp; | |
930e6fcd KL |
237 | unsigned long long t; |
238 | bool truncation = false; | |
9d9cad76 | 239 | unsigned long long timeout = proc_map_timeout * 1000000ULL; |
1e6d5322 | 240 | int rc = 0; |
234fbbf5 | 241 | |
c239c25a DY |
242 | if (machine__is_default_guest(machine)) |
243 | return 0; | |
244 | ||
99563465 DY |
245 | snprintf(filename, sizeof(filename), "%s/proc/%d/maps", |
246 | machine->root_dir, pid); | |
234fbbf5 ACM |
247 | |
248 | fp = fopen(filename, "r"); | |
249 | if (fp == NULL) { | |
250 | /* | |
251 | * We raced with a task exiting - just return: | |
252 | */ | |
253 | pr_debug("couldn't open %s\n", filename); | |
254 | return -1; | |
255 | } | |
256 | ||
a5a5ba72 | 257 | event->header.type = PERF_RECORD_MMAP2; |
930e6fcd | 258 | t = rdclock(); |
9c90a61c | 259 | |
234fbbf5 | 260 | while (1) { |
60648033 NK |
261 | char bf[BUFSIZ]; |
262 | char prot[5]; | |
263 | char execname[PATH_MAX]; | |
264 | char anonstr[] = "//anon"; | |
a5a5ba72 | 265 | unsigned int ino; |
234fbbf5 | 266 | size_t size; |
5c5e854b | 267 | ssize_t n; |
60648033 | 268 | |
234fbbf5 ACM |
269 | if (fgets(bf, sizeof(bf), fp) == NULL) |
270 | break; | |
271 | ||
9d9cad76 KL |
272 | if ((rdclock() - t) > timeout) { |
273 | pr_warning("Reading %s time out. " | |
274 | "You may want to increase " | |
275 | "the time limit by --proc-map-timeout\n", | |
276 | filename); | |
930e6fcd KL |
277 | truncation = true; |
278 | goto out; | |
279 | } | |
280 | ||
60648033 NK |
281 | /* ensure null termination since stack will be reused. */ |
282 | strcpy(execname, ""); | |
283 | ||
234fbbf5 | 284 | /* 00400000-0040c000 r-xp 00000000 fd:01 41038 /bin/cat */ |
a5a5ba72 DZ |
285 | n = sscanf(bf, "%"PRIx64"-%"PRIx64" %s %"PRIx64" %x:%x %u %s\n", |
286 | &event->mmap2.start, &event->mmap2.len, prot, | |
287 | &event->mmap2.pgoff, &event->mmap2.maj, | |
288 | &event->mmap2.min, | |
289 | &ino, execname); | |
290 | ||
9d4ecc88 DZ |
291 | /* |
292 | * Anon maps don't have the execname. | |
293 | */ | |
a5a5ba72 | 294 | if (n < 7) |
5c5e854b | 295 | continue; |
a5a5ba72 DZ |
296 | |
297 | event->mmap2.ino = (u64)ino; | |
298 | ||
62605dc5 ACM |
299 | /* |
300 | * Just like the kernel, see __perf_event_mmap in kernel/perf_event.c | |
301 | */ | |
73547aac DY |
302 | if (machine__is_host(machine)) |
303 | event->header.misc = PERF_RECORD_MISC_USER; | |
304 | else | |
305 | event->header.misc = PERF_RECORD_MISC_GUEST_USER; | |
60648033 | 306 | |
7ef80703 DZ |
307 | /* map protection and flags bits */ |
308 | event->mmap2.prot = 0; | |
309 | event->mmap2.flags = 0; | |
310 | if (prot[0] == 'r') | |
311 | event->mmap2.prot |= PROT_READ; | |
312 | if (prot[1] == 'w') | |
313 | event->mmap2.prot |= PROT_WRITE; | |
314 | if (prot[2] == 'x') | |
315 | event->mmap2.prot |= PROT_EXEC; | |
316 | ||
317 | if (prot[3] == 's') | |
318 | event->mmap2.flags |= MAP_SHARED; | |
319 | else | |
320 | event->mmap2.flags |= MAP_PRIVATE; | |
321 | ||
62605dc5 ACM |
322 | if (prot[2] != 'x') { |
323 | if (!mmap_data || prot[0] != 'r') | |
324 | continue; | |
325 | ||
326 | event->header.misc |= PERF_RECORD_MISC_MMAP_DATA; | |
327 | } | |
60648033 | 328 | |
930e6fcd KL |
329 | out: |
330 | if (truncation) | |
331 | event->header.misc |= PERF_RECORD_MISC_PROC_MAP_PARSE_TIMEOUT; | |
332 | ||
60648033 NK |
333 | if (!strcmp(execname, "")) |
334 | strcpy(execname, anonstr); | |
335 | ||
336 | size = strlen(execname) + 1; | |
a5a5ba72 | 337 | memcpy(event->mmap2.filename, execname, size); |
60648033 | 338 | size = PERF_ALIGN(size, sizeof(u64)); |
a5a5ba72 DZ |
339 | event->mmap2.len -= event->mmap.start; |
340 | event->mmap2.header.size = (sizeof(event->mmap2) - | |
341 | (sizeof(event->mmap2.filename) - size)); | |
342 | memset(event->mmap2.filename + size, 0, machine->id_hdr_size); | |
343 | event->mmap2.header.size += machine->id_hdr_size; | |
344 | event->mmap2.pid = tgid; | |
345 | event->mmap2.tid = pid; | |
60648033 NK |
346 | |
347 | if (process(tool, event, &synth_sample, machine) != 0) { | |
348 | rc = -1; | |
349 | break; | |
234fbbf5 | 350 | } |
930e6fcd KL |
351 | |
352 | if (truncation) | |
353 | break; | |
234fbbf5 ACM |
354 | } |
355 | ||
356 | fclose(fp); | |
1e6d5322 | 357 | return rc; |
234fbbf5 ACM |
358 | } |
359 | ||
45694aa7 | 360 | int perf_event__synthesize_modules(struct perf_tool *tool, |
d20deb64 | 361 | perf_event__handler_t process, |
8115d60c | 362 | struct machine *machine) |
b7cece76 | 363 | { |
1e6d5322 | 364 | int rc = 0; |
4bb7123d | 365 | struct map *pos; |
23346f21 | 366 | struct map_groups *kmaps = &machine->kmaps; |
1eee78ae | 367 | struct maps *maps = &kmaps->maps[MAP__FUNCTION]; |
8115d60c | 368 | union perf_event *event = zalloc((sizeof(event->mmap) + |
743eb868 | 369 | machine->id_hdr_size)); |
9c90a61c ACM |
370 | if (event == NULL) { |
371 | pr_debug("Not enough memory synthesizing mmap event " | |
372 | "for kernel modules\n"); | |
373 | return -1; | |
374 | } | |
375 | ||
376 | event->header.type = PERF_RECORD_MMAP; | |
b7cece76 | 377 | |
a1645ce1 ZY |
378 | /* |
379 | * kernel uses 0 for user space maps, see kernel/perf_event.c | |
380 | * __perf_event_mmap | |
381 | */ | |
23346f21 | 382 | if (machine__is_host(machine)) |
9c90a61c | 383 | event->header.misc = PERF_RECORD_MISC_KERNEL; |
a1645ce1 | 384 | else |
9c90a61c | 385 | event->header.misc = PERF_RECORD_MISC_GUEST_KERNEL; |
a1645ce1 | 386 | |
4bb7123d | 387 | for (pos = maps__first(maps); pos; pos = map__next(pos)) { |
b7cece76 | 388 | size_t size; |
b7cece76 | 389 | |
ab9c2bdc | 390 | if (__map__is_kernel(pos)) |
b7cece76 ACM |
391 | continue; |
392 | ||
9ac3e487 | 393 | size = PERF_ALIGN(pos->dso->long_name_len + 1, sizeof(u64)); |
9c90a61c ACM |
394 | event->mmap.header.type = PERF_RECORD_MMAP; |
395 | event->mmap.header.size = (sizeof(event->mmap) - | |
396 | (sizeof(event->mmap.filename) - size)); | |
743eb868 ACM |
397 | memset(event->mmap.filename + size, 0, machine->id_hdr_size); |
398 | event->mmap.header.size += machine->id_hdr_size; | |
9c90a61c ACM |
399 | event->mmap.start = pos->start; |
400 | event->mmap.len = pos->end - pos->start; | |
401 | event->mmap.pid = machine->pid; | |
402 | ||
403 | memcpy(event->mmap.filename, pos->dso->long_name, | |
b7cece76 | 404 | pos->dso->long_name_len + 1); |
1e6d5322 DA |
405 | if (process(tool, event, &synth_sample, machine) != 0) { |
406 | rc = -1; | |
407 | break; | |
408 | } | |
b7cece76 ACM |
409 | } |
410 | ||
9c90a61c | 411 | free(event); |
1e6d5322 | 412 | return rc; |
b7cece76 ACM |
413 | } |
414 | ||
8115d60c ACM |
415 | static int __event__synthesize_thread(union perf_event *comm_event, |
416 | union perf_event *mmap_event, | |
363b785f | 417 | union perf_event *fork_event, |
defd8d38 DA |
418 | pid_t pid, int full, |
419 | perf_event__handler_t process, | |
45694aa7 | 420 | struct perf_tool *tool, |
9d9cad76 KL |
421 | struct machine *machine, |
422 | bool mmap_data, | |
423 | unsigned int proc_map_timeout) | |
234fbbf5 | 424 | { |
bfd66cc7 DZ |
425 | char filename[PATH_MAX]; |
426 | DIR *tasks; | |
427 | struct dirent dirent, *next; | |
ca6c41c5 | 428 | pid_t tgid, ppid; |
d998b732 | 429 | int rc = 0; |
bfd66cc7 DZ |
430 | |
431 | /* special case: only send one comm event using passed in pid */ | |
432 | if (!full) { | |
433 | tgid = perf_event__synthesize_comm(tool, comm_event, pid, | |
434 | process, machine); | |
435 | ||
436 | if (tgid == -1) | |
437 | return -1; | |
438 | ||
439 | return perf_event__synthesize_mmap_events(tool, mmap_event, pid, tgid, | |
9d9cad76 KL |
440 | process, machine, mmap_data, |
441 | proc_map_timeout); | |
bfd66cc7 DZ |
442 | } |
443 | ||
444 | if (machine__is_default_guest(machine)) | |
445 | return 0; | |
446 | ||
447 | snprintf(filename, sizeof(filename), "%s/proc/%d/task", | |
448 | machine->root_dir, pid); | |
449 | ||
450 | tasks = opendir(filename); | |
451 | if (tasks == NULL) { | |
452 | pr_debug("couldn't open %s\n", filename); | |
453 | return 0; | |
454 | } | |
455 | ||
456 | while (!readdir_r(tasks, &dirent, &next) && next) { | |
457 | char *end; | |
bfd66cc7 DZ |
458 | pid_t _pid; |
459 | ||
460 | _pid = strtol(dirent.d_name, &end, 10); | |
461 | if (*end) | |
462 | continue; | |
463 | ||
d998b732 | 464 | rc = -1; |
ca6c41c5 DA |
465 | if (perf_event__prepare_comm(comm_event, _pid, machine, |
466 | &tgid, &ppid) != 0) | |
d998b732 | 467 | break; |
bfd66cc7 | 468 | |
4aa5f4f7 | 469 | if (perf_event__synthesize_fork(tool, fork_event, _pid, tgid, |
ca6c41c5 | 470 | ppid, process, machine) < 0) |
d998b732 | 471 | break; |
4aa5f4f7 ACM |
472 | /* |
473 | * Send the prepared comm event | |
474 | */ | |
475 | if (process(tool, comm_event, &synth_sample, machine) != 0) | |
d998b732 | 476 | break; |
4aa5f4f7 | 477 | |
d998b732 | 478 | rc = 0; |
363b785f DZ |
479 | if (_pid == pid) { |
480 | /* process the parent's maps too */ | |
481 | rc = perf_event__synthesize_mmap_events(tool, mmap_event, pid, tgid, | |
9d9cad76 | 482 | process, machine, mmap_data, proc_map_timeout); |
d998b732 ACM |
483 | if (rc) |
484 | break; | |
363b785f | 485 | } |
bfd66cc7 DZ |
486 | } |
487 | ||
488 | closedir(tasks); | |
d998b732 | 489 | return rc; |
234fbbf5 ACM |
490 | } |
491 | ||
45694aa7 | 492 | int perf_event__synthesize_thread_map(struct perf_tool *tool, |
d20deb64 | 493 | struct thread_map *threads, |
7c940c18 | 494 | perf_event__handler_t process, |
62605dc5 | 495 | struct machine *machine, |
9d9cad76 KL |
496 | bool mmap_data, |
497 | unsigned int proc_map_timeout) | |
9c90a61c | 498 | { |
363b785f | 499 | union perf_event *comm_event, *mmap_event, *fork_event; |
defd8d38 | 500 | int err = -1, thread, j; |
9c90a61c | 501 | |
743eb868 | 502 | comm_event = malloc(sizeof(comm_event->comm) + machine->id_hdr_size); |
9c90a61c ACM |
503 | if (comm_event == NULL) |
504 | goto out; | |
505 | ||
b0fb978e | 506 | mmap_event = malloc(sizeof(mmap_event->mmap2) + machine->id_hdr_size); |
9c90a61c ACM |
507 | if (mmap_event == NULL) |
508 | goto out_free_comm; | |
509 | ||
363b785f DZ |
510 | fork_event = malloc(sizeof(fork_event->fork) + machine->id_hdr_size); |
511 | if (fork_event == NULL) | |
512 | goto out_free_mmap; | |
513 | ||
401b8e13 ACM |
514 | err = 0; |
515 | for (thread = 0; thread < threads->nr; ++thread) { | |
516 | if (__event__synthesize_thread(comm_event, mmap_event, | |
363b785f | 517 | fork_event, |
e13798c7 | 518 | thread_map__pid(threads, thread), 0, |
62605dc5 | 519 | process, tool, machine, |
9d9cad76 | 520 | mmap_data, proc_map_timeout)) { |
401b8e13 ACM |
521 | err = -1; |
522 | break; | |
523 | } | |
defd8d38 DA |
524 | |
525 | /* | |
526 | * comm.pid is set to thread group id by | |
527 | * perf_event__synthesize_comm | |
528 | */ | |
e13798c7 | 529 | if ((int) comm_event->comm.pid != thread_map__pid(threads, thread)) { |
defd8d38 DA |
530 | bool need_leader = true; |
531 | ||
532 | /* is thread group leader in thread_map? */ | |
533 | for (j = 0; j < threads->nr; ++j) { | |
e13798c7 | 534 | if ((int) comm_event->comm.pid == thread_map__pid(threads, j)) { |
defd8d38 DA |
535 | need_leader = false; |
536 | break; | |
537 | } | |
538 | } | |
539 | ||
540 | /* if not, generate events for it */ | |
541 | if (need_leader && | |
62605dc5 | 542 | __event__synthesize_thread(comm_event, mmap_event, |
363b785f | 543 | fork_event, |
62605dc5 ACM |
544 | comm_event->comm.pid, 0, |
545 | process, tool, machine, | |
9d9cad76 | 546 | mmap_data, proc_map_timeout)) { |
defd8d38 DA |
547 | err = -1; |
548 | break; | |
549 | } | |
550 | } | |
401b8e13 | 551 | } |
363b785f DZ |
552 | free(fork_event); |
553 | out_free_mmap: | |
9c90a61c ACM |
554 | free(mmap_event); |
555 | out_free_comm: | |
556 | free(comm_event); | |
557 | out: | |
558 | return err; | |
559 | } | |
560 | ||
45694aa7 | 561 | int perf_event__synthesize_threads(struct perf_tool *tool, |
d20deb64 | 562 | perf_event__handler_t process, |
9d9cad76 KL |
563 | struct machine *machine, |
564 | bool mmap_data, | |
565 | unsigned int proc_map_timeout) | |
234fbbf5 ACM |
566 | { |
567 | DIR *proc; | |
99563465 | 568 | char proc_path[PATH_MAX]; |
234fbbf5 | 569 | struct dirent dirent, *next; |
363b785f | 570 | union perf_event *comm_event, *mmap_event, *fork_event; |
9c90a61c ACM |
571 | int err = -1; |
572 | ||
574799bf NK |
573 | if (machine__is_default_guest(machine)) |
574 | return 0; | |
575 | ||
743eb868 | 576 | comm_event = malloc(sizeof(comm_event->comm) + machine->id_hdr_size); |
9c90a61c ACM |
577 | if (comm_event == NULL) |
578 | goto out; | |
579 | ||
b0fb978e | 580 | mmap_event = malloc(sizeof(mmap_event->mmap2) + machine->id_hdr_size); |
9c90a61c ACM |
581 | if (mmap_event == NULL) |
582 | goto out_free_comm; | |
234fbbf5 | 583 | |
363b785f DZ |
584 | fork_event = malloc(sizeof(fork_event->fork) + machine->id_hdr_size); |
585 | if (fork_event == NULL) | |
586 | goto out_free_mmap; | |
587 | ||
99563465 DY |
588 | snprintf(proc_path, sizeof(proc_path), "%s/proc", machine->root_dir); |
589 | proc = opendir(proc_path); | |
590 | ||
9c90a61c | 591 | if (proc == NULL) |
363b785f | 592 | goto out_free_fork; |
234fbbf5 ACM |
593 | |
594 | while (!readdir_r(proc, &dirent, &next) && next) { | |
595 | char *end; | |
596 | pid_t pid = strtol(dirent.d_name, &end, 10); | |
597 | ||
598 | if (*end) /* only interested in proper numerical dirents */ | |
599 | continue; | |
ba361c92 ACM |
600 | /* |
601 | * We may race with exiting thread, so don't stop just because | |
602 | * one thread couldn't be synthesized. | |
603 | */ | |
363b785f | 604 | __event__synthesize_thread(comm_event, mmap_event, fork_event, pid, |
9d9cad76 KL |
605 | 1, process, tool, machine, mmap_data, |
606 | proc_map_timeout); | |
234fbbf5 ACM |
607 | } |
608 | ||
9c90a61c | 609 | err = 0; |
1e6d5322 | 610 | closedir(proc); |
363b785f DZ |
611 | out_free_fork: |
612 | free(fork_event); | |
9c90a61c ACM |
613 | out_free_mmap: |
614 | free(mmap_event); | |
615 | out_free_comm: | |
616 | free(comm_event); | |
617 | out: | |
618 | return err; | |
234fbbf5 | 619 | } |
62daacb5 | 620 | |
56b03f3c ACM |
621 | struct process_symbol_args { |
622 | const char *name; | |
623 | u64 start; | |
624 | }; | |
625 | ||
3b01a413 | 626 | static int find_symbol_cb(void *arg, const char *name, char type, |
82151520 | 627 | u64 start) |
56b03f3c ACM |
628 | { |
629 | struct process_symbol_args *args = arg; | |
630 | ||
881516eb ACM |
631 | /* |
632 | * Must be a function or at least an alias, as in PARISC64, where "_text" is | |
633 | * an 'A' to the same address as "_stext". | |
634 | */ | |
635 | if (!(symbol_type__is_a(type, MAP__FUNCTION) || | |
636 | type == 'A') || strcmp(name, args->name)) | |
56b03f3c ACM |
637 | return 0; |
638 | ||
639 | args->start = start; | |
640 | return 1; | |
641 | } | |
642 | ||
29b596b5 AH |
643 | u64 kallsyms__get_function_start(const char *kallsyms_filename, |
644 | const char *symbol_name) | |
645 | { | |
646 | struct process_symbol_args args = { .name = symbol_name, }; | |
647 | ||
648 | if (kallsyms__parse(kallsyms_filename, &args, find_symbol_cb) <= 0) | |
649 | return 0; | |
650 | ||
651 | return args.start; | |
652 | } | |
653 | ||
45694aa7 | 654 | int perf_event__synthesize_kernel_mmap(struct perf_tool *tool, |
d20deb64 | 655 | perf_event__handler_t process, |
0ae617be | 656 | struct machine *machine) |
56b03f3c ACM |
657 | { |
658 | size_t size; | |
0ae617be | 659 | const char *mmap_name; |
a1645ce1 | 660 | char name_buff[PATH_MAX]; |
a5e813c6 | 661 | struct map *map = machine__kernel_map(machine); |
0ae617be | 662 | struct kmap *kmap; |
9c90a61c | 663 | int err; |
a5c2a4c9 AK |
664 | union perf_event *event; |
665 | ||
77e65977 | 666 | if (map == NULL) |
a5c2a4c9 AK |
667 | return -1; |
668 | ||
56b03f3c ACM |
669 | /* |
670 | * We should get this from /sys/kernel/sections/.text, but till that is | |
671 | * available use this, and after it is use this as a fallback for older | |
672 | * kernels. | |
673 | */ | |
a5c2a4c9 | 674 | event = zalloc((sizeof(event->mmap) + machine->id_hdr_size)); |
9c90a61c ACM |
675 | if (event == NULL) { |
676 | pr_debug("Not enough memory synthesizing mmap event " | |
677 | "for kernel modules\n"); | |
678 | return -1; | |
679 | } | |
56b03f3c | 680 | |
48ea8f54 | 681 | mmap_name = machine__mmap_name(machine, name_buff, sizeof(name_buff)); |
23346f21 | 682 | if (machine__is_host(machine)) { |
a1645ce1 ZY |
683 | /* |
684 | * kernel uses PERF_RECORD_MISC_USER for user space maps, | |
685 | * see kernel/perf_event.c __perf_event_mmap | |
686 | */ | |
9c90a61c | 687 | event->header.misc = PERF_RECORD_MISC_KERNEL; |
a1645ce1 | 688 | } else { |
9c90a61c | 689 | event->header.misc = PERF_RECORD_MISC_GUEST_KERNEL; |
0b9e01a4 | 690 | } |
56b03f3c | 691 | |
0ae617be | 692 | kmap = map__kmap(map); |
9c90a61c | 693 | size = snprintf(event->mmap.filename, sizeof(event->mmap.filename), |
0ae617be | 694 | "%s%s", mmap_name, kmap->ref_reloc_sym->name) + 1; |
9ac3e487 | 695 | size = PERF_ALIGN(size, sizeof(u64)); |
9c90a61c ACM |
696 | event->mmap.header.type = PERF_RECORD_MMAP; |
697 | event->mmap.header.size = (sizeof(event->mmap) - | |
743eb868 | 698 | (sizeof(event->mmap.filename) - size) + machine->id_hdr_size); |
0ae617be | 699 | event->mmap.pgoff = kmap->ref_reloc_sym->addr; |
9c90a61c ACM |
700 | event->mmap.start = map->start; |
701 | event->mmap.len = map->end - event->mmap.start; | |
702 | event->mmap.pid = machine->pid; | |
703 | ||
45694aa7 | 704 | err = process(tool, event, &synth_sample, machine); |
9c90a61c ACM |
705 | free(event); |
706 | ||
707 | return err; | |
56b03f3c ACM |
708 | } |
709 | ||
99471c96 JO |
710 | int perf_event__synthesize_thread_map2(struct perf_tool *tool, |
711 | struct thread_map *threads, | |
712 | perf_event__handler_t process, | |
713 | struct machine *machine) | |
714 | { | |
715 | union perf_event *event; | |
716 | int i, err, size; | |
717 | ||
718 | size = sizeof(event->thread_map); | |
719 | size += threads->nr * sizeof(event->thread_map.entries[0]); | |
720 | ||
721 | event = zalloc(size); | |
722 | if (!event) | |
723 | return -ENOMEM; | |
724 | ||
725 | event->header.type = PERF_RECORD_THREAD_MAP; | |
726 | event->header.size = size; | |
727 | event->thread_map.nr = threads->nr; | |
728 | ||
729 | for (i = 0; i < threads->nr; i++) { | |
730 | struct thread_map_event_entry *entry = &event->thread_map.entries[i]; | |
731 | char *comm = thread_map__comm(threads, i); | |
732 | ||
733 | if (!comm) | |
734 | comm = (char *) ""; | |
735 | ||
736 | entry->pid = thread_map__pid(threads, i); | |
737 | strncpy((char *) &entry->comm, comm, sizeof(entry->comm)); | |
738 | } | |
739 | ||
740 | err = process(tool, event, NULL, machine); | |
741 | ||
742 | free(event); | |
743 | return err; | |
744 | } | |
745 | ||
6c872901 JO |
746 | static void synthesize_cpus(struct cpu_map_entries *cpus, |
747 | struct cpu_map *map) | |
748 | { | |
749 | int i; | |
750 | ||
751 | cpus->nr = map->nr; | |
752 | ||
753 | for (i = 0; i < map->nr; i++) | |
754 | cpus->cpu[i] = map->map[i]; | |
755 | } | |
756 | ||
757 | static void synthesize_mask(struct cpu_map_mask *mask, | |
758 | struct cpu_map *map, int max) | |
759 | { | |
760 | int i; | |
761 | ||
762 | mask->nr = BITS_TO_LONGS(max); | |
763 | mask->long_size = sizeof(long); | |
764 | ||
765 | for (i = 0; i < map->nr; i++) | |
766 | set_bit(map->map[i], mask->mask); | |
767 | } | |
768 | ||
769 | static size_t cpus_size(struct cpu_map *map) | |
770 | { | |
771 | return sizeof(struct cpu_map_entries) + map->nr * sizeof(u16); | |
772 | } | |
773 | ||
774 | static size_t mask_size(struct cpu_map *map, int *max) | |
775 | { | |
776 | int i; | |
777 | ||
778 | *max = 0; | |
779 | ||
780 | for (i = 0; i < map->nr; i++) { | |
781 | /* bit possition of the cpu is + 1 */ | |
782 | int bit = map->map[i] + 1; | |
783 | ||
784 | if (bit > *max) | |
785 | *max = bit; | |
786 | } | |
787 | ||
788 | return sizeof(struct cpu_map_mask) + BITS_TO_LONGS(*max) * sizeof(long); | |
789 | } | |
790 | ||
791 | void *cpu_map_data__alloc(struct cpu_map *map, size_t *size, u16 *type, int *max) | |
792 | { | |
793 | size_t size_cpus, size_mask; | |
794 | bool is_dummy = cpu_map__empty(map); | |
795 | ||
796 | /* | |
797 | * Both array and mask data have variable size based | |
798 | * on the number of cpus and their actual values. | |
799 | * The size of the 'struct cpu_map_data' is: | |
800 | * | |
801 | * array = size of 'struct cpu_map_entries' + | |
802 | * number of cpus * sizeof(u64) | |
803 | * | |
804 | * mask = size of 'struct cpu_map_mask' + | |
805 | * maximum cpu bit converted to size of longs | |
806 | * | |
807 | * and finaly + the size of 'struct cpu_map_data'. | |
808 | */ | |
809 | size_cpus = cpus_size(map); | |
810 | size_mask = mask_size(map, max); | |
811 | ||
812 | if (is_dummy || (size_cpus < size_mask)) { | |
813 | *size += size_cpus; | |
814 | *type = PERF_CPU_MAP__CPUS; | |
815 | } else { | |
816 | *size += size_mask; | |
817 | *type = PERF_CPU_MAP__MASK; | |
818 | } | |
819 | ||
820 | *size += sizeof(struct cpu_map_data); | |
821 | return zalloc(*size); | |
822 | } | |
823 | ||
824 | void cpu_map_data__synthesize(struct cpu_map_data *data, struct cpu_map *map, | |
825 | u16 type, int max) | |
826 | { | |
827 | data->type = type; | |
828 | ||
829 | switch (type) { | |
830 | case PERF_CPU_MAP__CPUS: | |
831 | synthesize_cpus((struct cpu_map_entries *) data->data, map); | |
832 | break; | |
833 | case PERF_CPU_MAP__MASK: | |
834 | synthesize_mask((struct cpu_map_mask *) data->data, map, max); | |
835 | default: | |
836 | break; | |
837 | }; | |
838 | } | |
839 | ||
840 | static struct cpu_map_event* cpu_map_event__new(struct cpu_map *map) | |
841 | { | |
842 | size_t size = sizeof(struct cpu_map_event); | |
843 | struct cpu_map_event *event; | |
844 | int max; | |
845 | u16 type; | |
846 | ||
847 | event = cpu_map_data__alloc(map, &size, &type, &max); | |
848 | if (!event) | |
849 | return NULL; | |
850 | ||
851 | event->header.type = PERF_RECORD_CPU_MAP; | |
852 | event->header.size = size; | |
853 | event->data.type = type; | |
854 | ||
855 | cpu_map_data__synthesize(&event->data, map, type, max); | |
856 | return event; | |
857 | } | |
858 | ||
859 | int perf_event__synthesize_cpu_map(struct perf_tool *tool, | |
860 | struct cpu_map *map, | |
861 | perf_event__handler_t process, | |
862 | struct machine *machine) | |
863 | { | |
864 | struct cpu_map_event *event; | |
865 | int err; | |
866 | ||
867 | event = cpu_map_event__new(map); | |
868 | if (!event) | |
869 | return -ENOMEM; | |
870 | ||
871 | err = process(tool, (union perf_event *) event, NULL, machine); | |
872 | ||
873 | free(event); | |
874 | return err; | |
875 | } | |
876 | ||
67424342 JO |
877 | int perf_event__synthesize_stat_config(struct perf_tool *tool, |
878 | struct perf_stat_config *config, | |
879 | perf_event__handler_t process, | |
880 | struct machine *machine) | |
881 | { | |
882 | struct stat_config_event *event; | |
883 | int size, i = 0, err; | |
884 | ||
885 | size = sizeof(*event); | |
886 | size += (PERF_STAT_CONFIG_TERM__MAX * sizeof(event->data[0])); | |
887 | ||
888 | event = zalloc(size); | |
889 | if (!event) | |
890 | return -ENOMEM; | |
891 | ||
892 | event->header.type = PERF_RECORD_STAT_CONFIG; | |
893 | event->header.size = size; | |
894 | event->nr = PERF_STAT_CONFIG_TERM__MAX; | |
895 | ||
896 | #define ADD(__term, __val) \ | |
897 | event->data[i].tag = PERF_STAT_CONFIG_TERM__##__term; \ | |
898 | event->data[i].val = __val; \ | |
899 | i++; | |
900 | ||
901 | ADD(AGGR_MODE, config->aggr_mode) | |
902 | ADD(INTERVAL, config->interval) | |
903 | ADD(SCALE, config->scale) | |
904 | ||
905 | WARN_ONCE(i != PERF_STAT_CONFIG_TERM__MAX, | |
906 | "stat config terms unbalanced\n"); | |
907 | #undef ADD | |
908 | ||
909 | err = process(tool, (union perf_event *) event, NULL, machine); | |
910 | ||
911 | free(event); | |
912 | return err; | |
913 | } | |
914 | ||
5796f8f0 JO |
915 | int perf_event__synthesize_stat(struct perf_tool *tool, |
916 | u32 cpu, u32 thread, u64 id, | |
917 | struct perf_counts_values *count, | |
918 | perf_event__handler_t process, | |
919 | struct machine *machine) | |
920 | { | |
921 | struct stat_event event; | |
922 | ||
923 | event.header.type = PERF_RECORD_STAT; | |
924 | event.header.size = sizeof(event); | |
925 | event.header.misc = 0; | |
926 | ||
927 | event.id = id; | |
928 | event.cpu = cpu; | |
929 | event.thread = thread; | |
930 | event.val = count->val; | |
931 | event.ena = count->ena; | |
932 | event.run = count->run; | |
933 | ||
934 | return process(tool, (union perf_event *) &event, NULL, machine); | |
935 | } | |
936 | ||
d4c22591 JO |
937 | int perf_event__synthesize_stat_round(struct perf_tool *tool, |
938 | u64 evtime, u64 type, | |
939 | perf_event__handler_t process, | |
940 | struct machine *machine) | |
941 | { | |
942 | struct stat_round_event event; | |
943 | ||
944 | event.header.type = PERF_RECORD_STAT_ROUND; | |
945 | event.header.size = sizeof(event); | |
946 | event.header.misc = 0; | |
947 | ||
948 | event.time = evtime; | |
949 | event.type = type; | |
950 | ||
951 | return process(tool, (union perf_event *) &event, NULL, machine); | |
952 | } | |
953 | ||
8e381596 JO |
954 | void perf_event__read_stat_config(struct perf_stat_config *config, |
955 | struct stat_config_event *event) | |
956 | { | |
957 | unsigned i; | |
958 | ||
959 | for (i = 0; i < event->nr; i++) { | |
960 | ||
961 | switch (event->data[i].tag) { | |
962 | #define CASE(__term, __val) \ | |
963 | case PERF_STAT_CONFIG_TERM__##__term: \ | |
964 | config->__val = event->data[i].val; \ | |
965 | break; | |
966 | ||
967 | CASE(AGGR_MODE, aggr_mode) | |
968 | CASE(SCALE, scale) | |
969 | CASE(INTERVAL, interval) | |
970 | #undef CASE | |
971 | default: | |
972 | pr_warning("unknown stat config term %" PRIu64 "\n", | |
973 | event->data[i].tag); | |
974 | } | |
975 | } | |
976 | } | |
977 | ||
482ad897 ACM |
978 | size_t perf_event__fprintf_comm(union perf_event *event, FILE *fp) |
979 | { | |
022c50d0 AH |
980 | const char *s; |
981 | ||
982 | if (event->header.misc & PERF_RECORD_MISC_COMM_EXEC) | |
983 | s = " exec"; | |
984 | else | |
985 | s = ""; | |
986 | ||
50674065 | 987 | return fprintf(fp, "%s: %s:%d/%d\n", s, event->comm.comm, event->comm.pid, event->comm.tid); |
482ad897 ACM |
988 | } |
989 | ||
1d037ca1 | 990 | int perf_event__process_comm(struct perf_tool *tool __maybe_unused, |
d20deb64 | 991 | union perf_event *event, |
162f0bef | 992 | struct perf_sample *sample, |
743eb868 | 993 | struct machine *machine) |
62daacb5 | 994 | { |
162f0bef | 995 | return machine__process_comm_event(machine, event, sample); |
62daacb5 ACM |
996 | } |
997 | ||
1d037ca1 | 998 | int perf_event__process_lost(struct perf_tool *tool __maybe_unused, |
d20deb64 | 999 | union perf_event *event, |
162f0bef | 1000 | struct perf_sample *sample, |
b0a7d1a0 | 1001 | struct machine *machine) |
62daacb5 | 1002 | { |
162f0bef | 1003 | return machine__process_lost_event(machine, event, sample); |
a1645ce1 | 1004 | } |
b7cece76 | 1005 | |
4a96f7a0 AH |
1006 | int perf_event__process_aux(struct perf_tool *tool __maybe_unused, |
1007 | union perf_event *event, | |
1008 | struct perf_sample *sample __maybe_unused, | |
1009 | struct machine *machine) | |
1010 | { | |
1011 | return machine__process_aux_event(machine, event); | |
1012 | } | |
1013 | ||
0ad21f68 AH |
1014 | int perf_event__process_itrace_start(struct perf_tool *tool __maybe_unused, |
1015 | union perf_event *event, | |
1016 | struct perf_sample *sample __maybe_unused, | |
1017 | struct machine *machine) | |
1018 | { | |
1019 | return machine__process_itrace_start_event(machine, event); | |
1020 | } | |
1021 | ||
c4937a91 KL |
1022 | int perf_event__process_lost_samples(struct perf_tool *tool __maybe_unused, |
1023 | union perf_event *event, | |
1024 | struct perf_sample *sample, | |
1025 | struct machine *machine) | |
1026 | { | |
1027 | return machine__process_lost_samples_event(machine, event, sample); | |
1028 | } | |
1029 | ||
0286039f AH |
1030 | int perf_event__process_switch(struct perf_tool *tool __maybe_unused, |
1031 | union perf_event *event, | |
1032 | struct perf_sample *sample __maybe_unused, | |
1033 | struct machine *machine) | |
1034 | { | |
1035 | return machine__process_switch_event(machine, event); | |
1036 | } | |
1037 | ||
482ad897 ACM |
1038 | size_t perf_event__fprintf_mmap(union perf_event *event, FILE *fp) |
1039 | { | |
62605dc5 | 1040 | return fprintf(fp, " %d/%d: [%#" PRIx64 "(%#" PRIx64 ") @ %#" PRIx64 "]: %c %s\n", |
482ad897 | 1041 | event->mmap.pid, event->mmap.tid, event->mmap.start, |
62605dc5 ACM |
1042 | event->mmap.len, event->mmap.pgoff, |
1043 | (event->header.misc & PERF_RECORD_MISC_MMAP_DATA) ? 'r' : 'x', | |
1044 | event->mmap.filename); | |
482ad897 ACM |
1045 | } |
1046 | ||
5c5e854b SE |
1047 | size_t perf_event__fprintf_mmap2(union perf_event *event, FILE *fp) |
1048 | { | |
1049 | return fprintf(fp, " %d/%d: [%#" PRIx64 "(%#" PRIx64 ") @ %#" PRIx64 | |
7ef80703 | 1050 | " %02x:%02x %"PRIu64" %"PRIu64"]: %c%c%c%c %s\n", |
5c5e854b SE |
1051 | event->mmap2.pid, event->mmap2.tid, event->mmap2.start, |
1052 | event->mmap2.len, event->mmap2.pgoff, event->mmap2.maj, | |
1053 | event->mmap2.min, event->mmap2.ino, | |
1054 | event->mmap2.ino_generation, | |
7ef80703 DZ |
1055 | (event->mmap2.prot & PROT_READ) ? 'r' : '-', |
1056 | (event->mmap2.prot & PROT_WRITE) ? 'w' : '-', | |
1057 | (event->mmap2.prot & PROT_EXEC) ? 'x' : '-', | |
1058 | (event->mmap2.flags & MAP_SHARED) ? 's' : 'p', | |
5c5e854b SE |
1059 | event->mmap2.filename); |
1060 | } | |
1061 | ||
ec7fa596 JO |
1062 | size_t perf_event__fprintf_thread_map(union perf_event *event, FILE *fp) |
1063 | { | |
1064 | struct thread_map *threads = thread_map__new_event(&event->thread_map); | |
1065 | size_t ret; | |
1066 | ||
1067 | ret = fprintf(fp, " nr: "); | |
1068 | ||
1069 | if (threads) | |
1070 | ret += thread_map__fprintf(threads, fp); | |
1071 | else | |
1072 | ret += fprintf(fp, "failed to get threads from event\n"); | |
1073 | ||
1074 | thread_map__put(threads); | |
1075 | return ret; | |
1076 | } | |
1077 | ||
eb12a1af JO |
1078 | size_t perf_event__fprintf_cpu_map(union perf_event *event, FILE *fp) |
1079 | { | |
1080 | struct cpu_map *cpus = cpu_map__new_data(&event->cpu_map.data); | |
1081 | size_t ret; | |
1082 | ||
1083 | ret = fprintf(fp, " nr: "); | |
1084 | ||
1085 | if (cpus) | |
1086 | ret += cpu_map__fprintf(cpus, fp); | |
1087 | else | |
1088 | ret += fprintf(fp, "failed to get cpumap from event\n"); | |
1089 | ||
1090 | cpu_map__put(cpus); | |
1091 | return ret; | |
1092 | } | |
1093 | ||
b0a7d1a0 | 1094 | int perf_event__process_mmap(struct perf_tool *tool __maybe_unused, |
d20deb64 | 1095 | union perf_event *event, |
162f0bef | 1096 | struct perf_sample *sample, |
743eb868 | 1097 | struct machine *machine) |
a1645ce1 | 1098 | { |
162f0bef | 1099 | return machine__process_mmap_event(machine, event, sample); |
62daacb5 ACM |
1100 | } |
1101 | ||
5c5e854b SE |
1102 | int perf_event__process_mmap2(struct perf_tool *tool __maybe_unused, |
1103 | union perf_event *event, | |
162f0bef | 1104 | struct perf_sample *sample, |
5c5e854b SE |
1105 | struct machine *machine) |
1106 | { | |
162f0bef | 1107 | return machine__process_mmap2_event(machine, event, sample); |
5c5e854b SE |
1108 | } |
1109 | ||
482ad897 ACM |
1110 | size_t perf_event__fprintf_task(union perf_event *event, FILE *fp) |
1111 | { | |
1112 | return fprintf(fp, "(%d:%d):(%d:%d)\n", | |
1113 | event->fork.pid, event->fork.tid, | |
1114 | event->fork.ppid, event->fork.ptid); | |
1115 | } | |
1116 | ||
f62d3f0f | 1117 | int perf_event__process_fork(struct perf_tool *tool __maybe_unused, |
d20deb64 | 1118 | union perf_event *event, |
162f0bef | 1119 | struct perf_sample *sample, |
f62d3f0f | 1120 | struct machine *machine) |
62daacb5 | 1121 | { |
162f0bef | 1122 | return machine__process_fork_event(machine, event, sample); |
62daacb5 | 1123 | } |
1ed091c4 | 1124 | |
f62d3f0f ACM |
1125 | int perf_event__process_exit(struct perf_tool *tool __maybe_unused, |
1126 | union perf_event *event, | |
162f0bef | 1127 | struct perf_sample *sample, |
f62d3f0f ACM |
1128 | struct machine *machine) |
1129 | { | |
162f0bef | 1130 | return machine__process_exit_event(machine, event, sample); |
f62d3f0f ACM |
1131 | } |
1132 | ||
4a96f7a0 AH |
1133 | size_t perf_event__fprintf_aux(union perf_event *event, FILE *fp) |
1134 | { | |
1135 | return fprintf(fp, " offset: %#"PRIx64" size: %#"PRIx64" flags: %#"PRIx64" [%s%s]\n", | |
1136 | event->aux.aux_offset, event->aux.aux_size, | |
1137 | event->aux.flags, | |
1138 | event->aux.flags & PERF_AUX_FLAG_TRUNCATED ? "T" : "", | |
1139 | event->aux.flags & PERF_AUX_FLAG_OVERWRITE ? "O" : ""); | |
1140 | } | |
1141 | ||
0ad21f68 AH |
1142 | size_t perf_event__fprintf_itrace_start(union perf_event *event, FILE *fp) |
1143 | { | |
1144 | return fprintf(fp, " pid: %u tid: %u\n", | |
1145 | event->itrace_start.pid, event->itrace_start.tid); | |
1146 | } | |
1147 | ||
0286039f AH |
1148 | size_t perf_event__fprintf_switch(union perf_event *event, FILE *fp) |
1149 | { | |
1150 | bool out = event->header.misc & PERF_RECORD_MISC_SWITCH_OUT; | |
1151 | const char *in_out = out ? "OUT" : "IN "; | |
1152 | ||
1153 | if (event->header.type == PERF_RECORD_SWITCH) | |
1154 | return fprintf(fp, " %s\n", in_out); | |
1155 | ||
1156 | return fprintf(fp, " %s %s pid/tid: %5u/%-5u\n", | |
1157 | in_out, out ? "next" : "prev", | |
1158 | event->context_switch.next_prev_pid, | |
1159 | event->context_switch.next_prev_tid); | |
1160 | } | |
1161 | ||
482ad897 ACM |
1162 | size_t perf_event__fprintf(union perf_event *event, FILE *fp) |
1163 | { | |
1164 | size_t ret = fprintf(fp, "PERF_RECORD_%s", | |
1165 | perf_event__name(event->header.type)); | |
1166 | ||
1167 | switch (event->header.type) { | |
1168 | case PERF_RECORD_COMM: | |
1169 | ret += perf_event__fprintf_comm(event, fp); | |
1170 | break; | |
1171 | case PERF_RECORD_FORK: | |
1172 | case PERF_RECORD_EXIT: | |
1173 | ret += perf_event__fprintf_task(event, fp); | |
1174 | break; | |
1175 | case PERF_RECORD_MMAP: | |
1176 | ret += perf_event__fprintf_mmap(event, fp); | |
1177 | break; | |
5c5e854b SE |
1178 | case PERF_RECORD_MMAP2: |
1179 | ret += perf_event__fprintf_mmap2(event, fp); | |
1180 | break; | |
4a96f7a0 AH |
1181 | case PERF_RECORD_AUX: |
1182 | ret += perf_event__fprintf_aux(event, fp); | |
1183 | break; | |
0ad21f68 AH |
1184 | case PERF_RECORD_ITRACE_START: |
1185 | ret += perf_event__fprintf_itrace_start(event, fp); | |
1186 | break; | |
0286039f AH |
1187 | case PERF_RECORD_SWITCH: |
1188 | case PERF_RECORD_SWITCH_CPU_WIDE: | |
1189 | ret += perf_event__fprintf_switch(event, fp); | |
1190 | break; | |
482ad897 ACM |
1191 | default: |
1192 | ret += fprintf(fp, "\n"); | |
1193 | } | |
1194 | ||
1195 | return ret; | |
1196 | } | |
1197 | ||
b0a7d1a0 ACM |
1198 | int perf_event__process(struct perf_tool *tool __maybe_unused, |
1199 | union perf_event *event, | |
162f0bef | 1200 | struct perf_sample *sample, |
b0a7d1a0 | 1201 | struct machine *machine) |
b83f920e | 1202 | { |
162f0bef | 1203 | return machine__process_event(machine, event, sample); |
b83f920e SD |
1204 | } |
1205 | ||
bb871a9c | 1206 | void thread__find_addr_map(struct thread *thread, u8 cpumode, |
743eb868 | 1207 | enum map_type type, u64 addr, |
326f59bf | 1208 | struct addr_location *al) |
1ed091c4 | 1209 | { |
93d5731d | 1210 | struct map_groups *mg = thread->mg; |
bb871a9c | 1211 | struct machine *machine = mg->machine; |
5b7ba82a | 1212 | bool load_map = false; |
1ed091c4 | 1213 | |
cc22e575 | 1214 | al->machine = machine; |
316c7136 | 1215 | al->thread = thread; |
1ed091c4 | 1216 | al->addr = addr; |
a1645ce1 | 1217 | al->cpumode = cpumode; |
b3cef7f6 | 1218 | al->filtered = 0; |
1ed091c4 | 1219 | |
743eb868 ACM |
1220 | if (machine == NULL) { |
1221 | al->map = NULL; | |
1222 | return; | |
1223 | } | |
1224 | ||
a1645ce1 | 1225 | if (cpumode == PERF_RECORD_MISC_KERNEL && perf_host) { |
1ed091c4 | 1226 | al->level = 'k'; |
23346f21 | 1227 | mg = &machine->kmaps; |
5b7ba82a | 1228 | load_map = true; |
a1645ce1 | 1229 | } else if (cpumode == PERF_RECORD_MISC_USER && perf_host) { |
1ed091c4 | 1230 | al->level = '.'; |
a1645ce1 ZY |
1231 | } else if (cpumode == PERF_RECORD_MISC_GUEST_KERNEL && perf_guest) { |
1232 | al->level = 'g'; | |
23346f21 | 1233 | mg = &machine->kmaps; |
5b7ba82a | 1234 | load_map = true; |
fb50bb43 DY |
1235 | } else if (cpumode == PERF_RECORD_MISC_GUEST_USER && perf_guest) { |
1236 | al->level = 'u'; | |
a1645ce1 | 1237 | } else { |
fb50bb43 | 1238 | al->level = 'H'; |
1ed091c4 | 1239 | al->map = NULL; |
a1645ce1 ZY |
1240 | |
1241 | if ((cpumode == PERF_RECORD_MISC_GUEST_USER || | |
1242 | cpumode == PERF_RECORD_MISC_GUEST_KERNEL) && | |
1243 | !perf_guest) | |
b3cef7f6 | 1244 | al->filtered |= (1 << HIST_FILTER__GUEST); |
a1645ce1 ZY |
1245 | if ((cpumode == PERF_RECORD_MISC_USER || |
1246 | cpumode == PERF_RECORD_MISC_KERNEL) && | |
1247 | !perf_host) | |
b3cef7f6 | 1248 | al->filtered |= (1 << HIST_FILTER__HOST); |
a1645ce1 | 1249 | |
1ed091c4 ACM |
1250 | return; |
1251 | } | |
1252 | try_again: | |
9958e1f0 | 1253 | al->map = map_groups__find(mg, type, al->addr); |
1ed091c4 ACM |
1254 | if (al->map == NULL) { |
1255 | /* | |
1256 | * If this is outside of all known maps, and is a negative | |
1257 | * address, try to look it up in the kernel dso, as it might be | |
1258 | * a vsyscall or vdso (which executes in user-mode). | |
1259 | * | |
1260 | * XXX This is nasty, we should have a symbol list in the | |
1261 | * "[vdso]" dso, but for now lets use the old trick of looking | |
1262 | * in the whole kernel symbol list. | |
1263 | */ | |
fbe2af45 AH |
1264 | if (cpumode == PERF_RECORD_MISC_USER && machine && |
1265 | mg != &machine->kmaps && | |
1266 | machine__kernel_ip(machine, al->addr)) { | |
23346f21 | 1267 | mg = &machine->kmaps; |
1f2a7069 | 1268 | load_map = true; |
1ed091c4 ACM |
1269 | goto try_again; |
1270 | } | |
5b7ba82a AH |
1271 | } else { |
1272 | /* | |
1273 | * Kernel maps might be changed when loading symbols so loading | |
1274 | * must be done prior to using kernel maps. | |
1275 | */ | |
1276 | if (load_map) | |
326f59bf | 1277 | map__load(al->map, machine->symbol_filter); |
1ed091c4 | 1278 | al->addr = al->map->map_ip(al->map, al->addr); |
5b7ba82a | 1279 | } |
59ee68ec ACM |
1280 | } |
1281 | ||
bb871a9c | 1282 | void thread__find_addr_location(struct thread *thread, |
743eb868 | 1283 | u8 cpumode, enum map_type type, u64 addr, |
61710bde | 1284 | struct addr_location *al) |
59ee68ec | 1285 | { |
bb871a9c | 1286 | thread__find_addr_map(thread, cpumode, type, addr, al); |
59ee68ec | 1287 | if (al->map != NULL) |
61710bde | 1288 | al->sym = map__find_symbol(al->map, al->addr, |
bb871a9c | 1289 | thread->mg->machine->symbol_filter); |
59ee68ec ACM |
1290 | else |
1291 | al->sym = NULL; | |
1ed091c4 ACM |
1292 | } |
1293 | ||
b91fc39f ACM |
1294 | /* |
1295 | * Callers need to drop the reference to al->thread, obtained in | |
1296 | * machine__findnew_thread() | |
1297 | */ | |
8115d60c | 1298 | int perf_event__preprocess_sample(const union perf_event *event, |
743eb868 | 1299 | struct machine *machine, |
8115d60c | 1300 | struct addr_location *al, |
e44baa3e | 1301 | struct perf_sample *sample) |
1ed091c4 | 1302 | { |
8115d60c | 1303 | u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; |
ef89325f | 1304 | struct thread *thread = machine__findnew_thread(machine, sample->pid, |
13ce34df | 1305 | sample->tid); |
41a37e20 | 1306 | |
1ed091c4 ACM |
1307 | if (thread == NULL) |
1308 | return -1; | |
1309 | ||
b9c5143a | 1310 | dump_printf(" ... thread: %s:%d\n", thread__comm_str(thread), thread->tid); |
1f626bc3 | 1311 | /* |
743eb868 | 1312 | * Have we already created the kernel maps for this machine? |
1f626bc3 ACM |
1313 | * |
1314 | * This should have happened earlier, when we processed the kernel MMAP | |
1315 | * events, but for older perf.data files there was no such thing, so do | |
1316 | * it now. | |
1317 | */ | |
1318 | if (cpumode == PERF_RECORD_MISC_KERNEL && | |
a5e813c6 | 1319 | machine__kernel_map(machine) == NULL) |
743eb868 | 1320 | machine__create_kernel_maps(machine); |
1ed091c4 | 1321 | |
bb871a9c | 1322 | thread__find_addr_map(thread, cpumode, MAP__FUNCTION, sample->ip, al); |
1ed091c4 ACM |
1323 | dump_printf(" ...... dso: %s\n", |
1324 | al->map ? al->map->dso->long_name : | |
1325 | al->level == 'H' ? "[hypervisor]" : "<not found>"); | |
466fa764 NK |
1326 | |
1327 | if (thread__is_filtered(thread)) | |
1328 | al->filtered |= (1 << HIST_FILTER__THREAD); | |
1329 | ||
96415e4d | 1330 | al->sym = NULL; |
8d50e5b4 | 1331 | al->cpu = sample->cpu; |
0c4c4deb KL |
1332 | al->socket = -1; |
1333 | ||
1334 | if (al->cpu >= 0) { | |
1335 | struct perf_env *env = machine->env; | |
1336 | ||
1337 | if (env && env->cpu) | |
1338 | al->socket = env->cpu[al->cpu].socket_id; | |
1339 | } | |
96415e4d ACM |
1340 | |
1341 | if (al->map) { | |
cb8f4e9a NK |
1342 | struct dso *dso = al->map->dso; |
1343 | ||
96415e4d | 1344 | if (symbol_conf.dso_list && |
cb8f4e9a NK |
1345 | (!dso || !(strlist__has_entry(symbol_conf.dso_list, |
1346 | dso->short_name) || | |
1347 | (dso->short_name != dso->long_name && | |
1348 | strlist__has_entry(symbol_conf.dso_list, | |
b3cef7f6 NK |
1349 | dso->long_name))))) { |
1350 | al->filtered |= (1 << HIST_FILTER__DSO); | |
b3cef7f6 | 1351 | } |
96415e4d | 1352 | |
e44baa3e AH |
1353 | al->sym = map__find_symbol(al->map, al->addr, |
1354 | machine->symbol_filter); | |
96415e4d | 1355 | } |
c410a338 | 1356 | |
1500b93b FT |
1357 | if (symbol_conf.sym_list && |
1358 | (!al->sym || !strlist__has_entry(symbol_conf.sym_list, | |
b3cef7f6 NK |
1359 | al->sym->name))) { |
1360 | al->filtered |= (1 << HIST_FILTER__SYMBOL); | |
b3cef7f6 | 1361 | } |
c410a338 | 1362 | |
c410a338 | 1363 | return 0; |
1ed091c4 | 1364 | } |
9b0d2d87 | 1365 | |
b91fc39f ACM |
1366 | /* |
1367 | * The preprocess_sample method will return with reference counts for the | |
1368 | * in it, when done using (and perhaps getting ref counts if needing to | |
1369 | * keep a pointer to one of those entries) it must be paired with | |
1370 | * addr_location__put(), so that the refcounts can be decremented. | |
1371 | */ | |
1372 | void addr_location__put(struct addr_location *al) | |
1373 | { | |
1374 | thread__zput(al->thread); | |
1375 | } | |
1376 | ||
9b0d2d87 AH |
1377 | bool is_bts_event(struct perf_event_attr *attr) |
1378 | { | |
1379 | return attr->type == PERF_TYPE_HARDWARE && | |
1380 | (attr->config & PERF_COUNT_HW_BRANCH_INSTRUCTIONS) && | |
1381 | attr->sample_period == 1; | |
1382 | } | |
1383 | ||
1384 | bool sample_addr_correlates_sym(struct perf_event_attr *attr) | |
1385 | { | |
1386 | if (attr->type == PERF_TYPE_SOFTWARE && | |
1387 | (attr->config == PERF_COUNT_SW_PAGE_FAULTS || | |
1388 | attr->config == PERF_COUNT_SW_PAGE_FAULTS_MIN || | |
1389 | attr->config == PERF_COUNT_SW_PAGE_FAULTS_MAJ)) | |
1390 | return true; | |
1391 | ||
1392 | if (is_bts_event(attr)) | |
1393 | return true; | |
1394 | ||
1395 | return false; | |
1396 | } | |
1397 | ||
1398 | void perf_event__preprocess_sample_addr(union perf_event *event, | |
1399 | struct perf_sample *sample, | |
9b0d2d87 AH |
1400 | struct thread *thread, |
1401 | struct addr_location *al) | |
1402 | { | |
1403 | u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; | |
1404 | ||
bb871a9c | 1405 | thread__find_addr_map(thread, cpumode, MAP__FUNCTION, sample->addr, al); |
9b0d2d87 | 1406 | if (!al->map) |
bb871a9c | 1407 | thread__find_addr_map(thread, cpumode, MAP__VARIABLE, |
9b0d2d87 AH |
1408 | sample->addr, al); |
1409 | ||
1410 | al->cpu = sample->cpu; | |
1411 | al->sym = NULL; | |
1412 | ||
1413 | if (al->map) | |
1414 | al->sym = map__find_symbol(al->map, al->addr, NULL); | |
1415 | } |