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 | ||
3ea223ad ACM |
59 | static int perf_tool__process_synth_event(struct perf_tool *tool, |
60 | union perf_event *event, | |
61 | struct machine *machine, | |
62 | perf_event__handler_t process) | |
63 | { | |
64 | struct perf_sample synth_sample = { | |
640c03ce ACM |
65 | .pid = -1, |
66 | .tid = -1, | |
67 | .time = -1, | |
68 | .stream_id = -1, | |
69 | .cpu = -1, | |
70 | .period = 1, | |
3ea223ad ACM |
71 | .cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK, |
72 | }; | |
73 | ||
74 | return process(tool, event, &synth_sample, machine); | |
640c03ce ACM |
75 | }; |
76 | ||
5aa0b030 DA |
77 | /* |
78 | * Assumes that the first 4095 bytes of /proc/pid/stat contains | |
ca6c41c5 | 79 | * the comm, tgid and ppid. |
5aa0b030 | 80 | */ |
ca6c41c5 DA |
81 | static int perf_event__get_comm_ids(pid_t pid, char *comm, size_t len, |
82 | pid_t *tgid, pid_t *ppid) | |
234fbbf5 | 83 | { |
234fbbf5 | 84 | char filename[PATH_MAX]; |
5aa0b030 DA |
85 | char bf[4096]; |
86 | int fd; | |
38349665 AH |
87 | size_t size = 0; |
88 | ssize_t n; | |
ca6c41c5 DA |
89 | char *nl, *name, *tgids, *ppids; |
90 | ||
91 | *tgid = -1; | |
92 | *ppid = -1; | |
234fbbf5 ACM |
93 | |
94 | snprintf(filename, sizeof(filename), "/proc/%d/status", pid); | |
95 | ||
5aa0b030 DA |
96 | fd = open(filename, O_RDONLY); |
97 | if (fd < 0) { | |
234fbbf5 | 98 | pr_debug("couldn't open %s\n", filename); |
ca6c41c5 | 99 | return -1; |
234fbbf5 ACM |
100 | } |
101 | ||
5aa0b030 DA |
102 | n = read(fd, bf, sizeof(bf) - 1); |
103 | close(fd); | |
104 | if (n <= 0) { | |
ca6c41c5 | 105 | pr_warning("Couldn't get COMM, tigd and ppid for pid %d\n", |
5aa0b030 DA |
106 | pid); |
107 | return -1; | |
234fbbf5 | 108 | } |
5aa0b030 | 109 | bf[n] = '\0'; |
234fbbf5 | 110 | |
5aa0b030 DA |
111 | name = strstr(bf, "Name:"); |
112 | tgids = strstr(bf, "Tgid:"); | |
ca6c41c5 | 113 | ppids = strstr(bf, "PPid:"); |
5aa0b030 DA |
114 | |
115 | if (name) { | |
116 | name += 5; /* strlen("Name:") */ | |
117 | ||
118 | while (*name && isspace(*name)) | |
119 | ++name; | |
120 | ||
121 | nl = strchr(name, '\n'); | |
122 | if (nl) | |
123 | *nl = '\0'; | |
124 | ||
125 | size = strlen(name); | |
126 | if (size >= len) | |
127 | size = len - 1; | |
128 | memcpy(comm, name, size); | |
129 | comm[size] = '\0'; | |
130 | } else { | |
131 | pr_debug("Name: string not found for pid %d\n", pid); | |
132 | } | |
133 | ||
134 | if (tgids) { | |
135 | tgids += 5; /* strlen("Tgid:") */ | |
ca6c41c5 | 136 | *tgid = atoi(tgids); |
5aa0b030 DA |
137 | } else { |
138 | pr_debug("Tgid: string not found for pid %d\n", pid); | |
139 | } | |
f5faf726 | 140 | |
ca6c41c5 DA |
141 | if (ppids) { |
142 | ppids += 5; /* strlen("PPid:") */ | |
143 | *ppid = atoi(ppids); | |
144 | } else { | |
145 | pr_debug("PPid: string not found for pid %d\n", pid); | |
146 | } | |
147 | ||
148 | return 0; | |
f5faf726 DA |
149 | } |
150 | ||
ca6c41c5 DA |
151 | static int perf_event__prepare_comm(union perf_event *event, pid_t pid, |
152 | struct machine *machine, | |
153 | pid_t *tgid, pid_t *ppid) | |
f5faf726 | 154 | { |
f5faf726 | 155 | size_t size; |
ca6c41c5 DA |
156 | |
157 | *ppid = -1; | |
f5faf726 DA |
158 | |
159 | memset(&event->comm, 0, sizeof(event->comm)); | |
160 | ||
ca6c41c5 DA |
161 | if (machine__is_host(machine)) { |
162 | if (perf_event__get_comm_ids(pid, event->comm.comm, | |
163 | sizeof(event->comm.comm), | |
164 | tgid, ppid) != 0) { | |
165 | return -1; | |
166 | } | |
167 | } else { | |
168 | *tgid = machine->pid; | |
169 | } | |
f5db57c4 | 170 | |
ca6c41c5 DA |
171 | if (*tgid < 0) |
172 | return -1; | |
f5faf726 | 173 | |
ca6c41c5 | 174 | event->comm.pid = *tgid; |
9c90a61c | 175 | event->comm.header.type = PERF_RECORD_COMM; |
f5faf726 DA |
176 | |
177 | size = strlen(event->comm.comm) + 1; | |
9ac3e487 | 178 | size = PERF_ALIGN(size, sizeof(u64)); |
743eb868 | 179 | memset(event->comm.comm + size, 0, machine->id_hdr_size); |
9c90a61c ACM |
180 | event->comm.header.size = (sizeof(event->comm) - |
181 | (sizeof(event->comm.comm) - size) + | |
743eb868 | 182 | machine->id_hdr_size); |
bfd66cc7 | 183 | event->comm.tid = pid; |
ca6c41c5 DA |
184 | |
185 | return 0; | |
4aa5f4f7 ACM |
186 | } |
187 | ||
e803cf97 | 188 | pid_t perf_event__synthesize_comm(struct perf_tool *tool, |
4aa5f4f7 ACM |
189 | union perf_event *event, pid_t pid, |
190 | perf_event__handler_t process, | |
191 | struct machine *machine) | |
192 | { | |
ca6c41c5 | 193 | pid_t tgid, ppid; |
4aa5f4f7 | 194 | |
ca6c41c5 DA |
195 | if (perf_event__prepare_comm(event, pid, machine, &tgid, &ppid) != 0) |
196 | return -1; | |
f5faf726 | 197 | |
3ea223ad | 198 | if (perf_tool__process_synth_event(tool, event, machine, process) != 0) |
bfd66cc7 | 199 | return -1; |
234fbbf5 | 200 | |
9c90a61c | 201 | return tgid; |
234fbbf5 ACM |
202 | } |
203 | ||
363b785f | 204 | static int perf_event__synthesize_fork(struct perf_tool *tool, |
ca6c41c5 DA |
205 | union perf_event *event, |
206 | pid_t pid, pid_t tgid, pid_t ppid, | |
207 | perf_event__handler_t process, | |
363b785f DZ |
208 | struct machine *machine) |
209 | { | |
210 | memset(&event->fork, 0, sizeof(event->fork) + machine->id_hdr_size); | |
211 | ||
7764a385 DA |
212 | /* |
213 | * for main thread set parent to ppid from status file. For other | |
214 | * threads set parent pid to main thread. ie., assume main thread | |
215 | * spawns all threads in a process | |
216 | */ | |
217 | if (tgid == pid) { | |
218 | event->fork.ppid = ppid; | |
219 | event->fork.ptid = ppid; | |
220 | } else { | |
221 | event->fork.ppid = tgid; | |
222 | event->fork.ptid = tgid; | |
223 | } | |
363b785f DZ |
224 | event->fork.pid = tgid; |
225 | event->fork.tid = pid; | |
226 | event->fork.header.type = PERF_RECORD_FORK; | |
227 | ||
228 | event->fork.header.size = (sizeof(event->fork) + machine->id_hdr_size); | |
229 | ||
3ea223ad | 230 | if (perf_tool__process_synth_event(tool, event, machine, process) != 0) |
363b785f DZ |
231 | return -1; |
232 | ||
233 | return 0; | |
234 | } | |
235 | ||
a18382b6 JO |
236 | int perf_event__synthesize_mmap_events(struct perf_tool *tool, |
237 | union perf_event *event, | |
238 | pid_t pid, pid_t tgid, | |
239 | perf_event__handler_t process, | |
240 | struct machine *machine, | |
9d9cad76 KL |
241 | bool mmap_data, |
242 | unsigned int proc_map_timeout) | |
234fbbf5 ACM |
243 | { |
244 | char filename[PATH_MAX]; | |
245 | FILE *fp; | |
930e6fcd KL |
246 | unsigned long long t; |
247 | bool truncation = false; | |
9d9cad76 | 248 | unsigned long long timeout = proc_map_timeout * 1000000ULL; |
1e6d5322 | 249 | int rc = 0; |
234fbbf5 | 250 | |
c239c25a DY |
251 | if (machine__is_default_guest(machine)) |
252 | return 0; | |
253 | ||
99563465 DY |
254 | snprintf(filename, sizeof(filename), "%s/proc/%d/maps", |
255 | machine->root_dir, pid); | |
234fbbf5 ACM |
256 | |
257 | fp = fopen(filename, "r"); | |
258 | if (fp == NULL) { | |
259 | /* | |
260 | * We raced with a task exiting - just return: | |
261 | */ | |
262 | pr_debug("couldn't open %s\n", filename); | |
263 | return -1; | |
264 | } | |
265 | ||
a5a5ba72 | 266 | event->header.type = PERF_RECORD_MMAP2; |
930e6fcd | 267 | t = rdclock(); |
9c90a61c | 268 | |
234fbbf5 | 269 | while (1) { |
60648033 NK |
270 | char bf[BUFSIZ]; |
271 | char prot[5]; | |
272 | char execname[PATH_MAX]; | |
273 | char anonstr[] = "//anon"; | |
a5a5ba72 | 274 | unsigned int ino; |
234fbbf5 | 275 | size_t size; |
5c5e854b | 276 | ssize_t n; |
60648033 | 277 | |
234fbbf5 ACM |
278 | if (fgets(bf, sizeof(bf), fp) == NULL) |
279 | break; | |
280 | ||
9d9cad76 KL |
281 | if ((rdclock() - t) > timeout) { |
282 | pr_warning("Reading %s time out. " | |
283 | "You may want to increase " | |
284 | "the time limit by --proc-map-timeout\n", | |
285 | filename); | |
930e6fcd KL |
286 | truncation = true; |
287 | goto out; | |
288 | } | |
289 | ||
60648033 NK |
290 | /* ensure null termination since stack will be reused. */ |
291 | strcpy(execname, ""); | |
292 | ||
234fbbf5 | 293 | /* 00400000-0040c000 r-xp 00000000 fd:01 41038 /bin/cat */ |
89fee59b | 294 | n = sscanf(bf, "%"PRIx64"-%"PRIx64" %s %"PRIx64" %x:%x %u %[^\n]\n", |
a5a5ba72 DZ |
295 | &event->mmap2.start, &event->mmap2.len, prot, |
296 | &event->mmap2.pgoff, &event->mmap2.maj, | |
297 | &event->mmap2.min, | |
298 | &ino, execname); | |
299 | ||
9d4ecc88 DZ |
300 | /* |
301 | * Anon maps don't have the execname. | |
302 | */ | |
a5a5ba72 | 303 | if (n < 7) |
5c5e854b | 304 | continue; |
a5a5ba72 DZ |
305 | |
306 | event->mmap2.ino = (u64)ino; | |
307 | ||
62605dc5 ACM |
308 | /* |
309 | * Just like the kernel, see __perf_event_mmap in kernel/perf_event.c | |
310 | */ | |
73547aac DY |
311 | if (machine__is_host(machine)) |
312 | event->header.misc = PERF_RECORD_MISC_USER; | |
313 | else | |
314 | event->header.misc = PERF_RECORD_MISC_GUEST_USER; | |
60648033 | 315 | |
7ef80703 DZ |
316 | /* map protection and flags bits */ |
317 | event->mmap2.prot = 0; | |
318 | event->mmap2.flags = 0; | |
319 | if (prot[0] == 'r') | |
320 | event->mmap2.prot |= PROT_READ; | |
321 | if (prot[1] == 'w') | |
322 | event->mmap2.prot |= PROT_WRITE; | |
323 | if (prot[2] == 'x') | |
324 | event->mmap2.prot |= PROT_EXEC; | |
325 | ||
326 | if (prot[3] == 's') | |
327 | event->mmap2.flags |= MAP_SHARED; | |
328 | else | |
329 | event->mmap2.flags |= MAP_PRIVATE; | |
330 | ||
62605dc5 ACM |
331 | if (prot[2] != 'x') { |
332 | if (!mmap_data || prot[0] != 'r') | |
333 | continue; | |
334 | ||
335 | event->header.misc |= PERF_RECORD_MISC_MMAP_DATA; | |
336 | } | |
60648033 | 337 | |
930e6fcd KL |
338 | out: |
339 | if (truncation) | |
340 | event->header.misc |= PERF_RECORD_MISC_PROC_MAP_PARSE_TIMEOUT; | |
341 | ||
60648033 NK |
342 | if (!strcmp(execname, "")) |
343 | strcpy(execname, anonstr); | |
344 | ||
345 | size = strlen(execname) + 1; | |
a5a5ba72 | 346 | memcpy(event->mmap2.filename, execname, size); |
60648033 | 347 | size = PERF_ALIGN(size, sizeof(u64)); |
a5a5ba72 DZ |
348 | event->mmap2.len -= event->mmap.start; |
349 | event->mmap2.header.size = (sizeof(event->mmap2) - | |
350 | (sizeof(event->mmap2.filename) - size)); | |
351 | memset(event->mmap2.filename + size, 0, machine->id_hdr_size); | |
352 | event->mmap2.header.size += machine->id_hdr_size; | |
353 | event->mmap2.pid = tgid; | |
354 | event->mmap2.tid = pid; | |
60648033 | 355 | |
3ea223ad | 356 | if (perf_tool__process_synth_event(tool, event, machine, process) != 0) { |
60648033 NK |
357 | rc = -1; |
358 | break; | |
234fbbf5 | 359 | } |
930e6fcd KL |
360 | |
361 | if (truncation) | |
362 | break; | |
234fbbf5 ACM |
363 | } |
364 | ||
365 | fclose(fp); | |
1e6d5322 | 366 | return rc; |
234fbbf5 ACM |
367 | } |
368 | ||
45694aa7 | 369 | int perf_event__synthesize_modules(struct perf_tool *tool, |
d20deb64 | 370 | perf_event__handler_t process, |
8115d60c | 371 | struct machine *machine) |
b7cece76 | 372 | { |
1e6d5322 | 373 | int rc = 0; |
4bb7123d | 374 | struct map *pos; |
23346f21 | 375 | struct map_groups *kmaps = &machine->kmaps; |
1eee78ae | 376 | struct maps *maps = &kmaps->maps[MAP__FUNCTION]; |
8115d60c | 377 | union perf_event *event = zalloc((sizeof(event->mmap) + |
743eb868 | 378 | machine->id_hdr_size)); |
9c90a61c ACM |
379 | if (event == NULL) { |
380 | pr_debug("Not enough memory synthesizing mmap event " | |
381 | "for kernel modules\n"); | |
382 | return -1; | |
383 | } | |
384 | ||
385 | event->header.type = PERF_RECORD_MMAP; | |
b7cece76 | 386 | |
a1645ce1 ZY |
387 | /* |
388 | * kernel uses 0 for user space maps, see kernel/perf_event.c | |
389 | * __perf_event_mmap | |
390 | */ | |
23346f21 | 391 | if (machine__is_host(machine)) |
9c90a61c | 392 | event->header.misc = PERF_RECORD_MISC_KERNEL; |
a1645ce1 | 393 | else |
9c90a61c | 394 | event->header.misc = PERF_RECORD_MISC_GUEST_KERNEL; |
a1645ce1 | 395 | |
4bb7123d | 396 | for (pos = maps__first(maps); pos; pos = map__next(pos)) { |
b7cece76 | 397 | size_t size; |
b7cece76 | 398 | |
ab9c2bdc | 399 | if (__map__is_kernel(pos)) |
b7cece76 ACM |
400 | continue; |
401 | ||
9ac3e487 | 402 | size = PERF_ALIGN(pos->dso->long_name_len + 1, sizeof(u64)); |
9c90a61c ACM |
403 | event->mmap.header.type = PERF_RECORD_MMAP; |
404 | event->mmap.header.size = (sizeof(event->mmap) - | |
405 | (sizeof(event->mmap.filename) - size)); | |
743eb868 ACM |
406 | memset(event->mmap.filename + size, 0, machine->id_hdr_size); |
407 | event->mmap.header.size += machine->id_hdr_size; | |
9c90a61c ACM |
408 | event->mmap.start = pos->start; |
409 | event->mmap.len = pos->end - pos->start; | |
410 | event->mmap.pid = machine->pid; | |
411 | ||
412 | memcpy(event->mmap.filename, pos->dso->long_name, | |
b7cece76 | 413 | pos->dso->long_name_len + 1); |
3ea223ad | 414 | if (perf_tool__process_synth_event(tool, event, machine, process) != 0) { |
1e6d5322 DA |
415 | rc = -1; |
416 | break; | |
417 | } | |
b7cece76 ACM |
418 | } |
419 | ||
9c90a61c | 420 | free(event); |
1e6d5322 | 421 | return rc; |
b7cece76 ACM |
422 | } |
423 | ||
8115d60c ACM |
424 | static int __event__synthesize_thread(union perf_event *comm_event, |
425 | union perf_event *mmap_event, | |
363b785f | 426 | union perf_event *fork_event, |
defd8d38 DA |
427 | pid_t pid, int full, |
428 | perf_event__handler_t process, | |
45694aa7 | 429 | struct perf_tool *tool, |
9d9cad76 KL |
430 | struct machine *machine, |
431 | bool mmap_data, | |
432 | unsigned int proc_map_timeout) | |
234fbbf5 | 433 | { |
bfd66cc7 DZ |
434 | char filename[PATH_MAX]; |
435 | DIR *tasks; | |
436 | struct dirent dirent, *next; | |
ca6c41c5 | 437 | pid_t tgid, ppid; |
d998b732 | 438 | int rc = 0; |
bfd66cc7 DZ |
439 | |
440 | /* special case: only send one comm event using passed in pid */ | |
441 | if (!full) { | |
442 | tgid = perf_event__synthesize_comm(tool, comm_event, pid, | |
443 | process, machine); | |
444 | ||
445 | if (tgid == -1) | |
446 | return -1; | |
447 | ||
448 | return perf_event__synthesize_mmap_events(tool, mmap_event, pid, tgid, | |
9d9cad76 KL |
449 | process, machine, mmap_data, |
450 | proc_map_timeout); | |
bfd66cc7 DZ |
451 | } |
452 | ||
453 | if (machine__is_default_guest(machine)) | |
454 | return 0; | |
455 | ||
456 | snprintf(filename, sizeof(filename), "%s/proc/%d/task", | |
457 | machine->root_dir, pid); | |
458 | ||
459 | tasks = opendir(filename); | |
460 | if (tasks == NULL) { | |
461 | pr_debug("couldn't open %s\n", filename); | |
462 | return 0; | |
463 | } | |
464 | ||
465 | while (!readdir_r(tasks, &dirent, &next) && next) { | |
466 | char *end; | |
bfd66cc7 DZ |
467 | pid_t _pid; |
468 | ||
469 | _pid = strtol(dirent.d_name, &end, 10); | |
470 | if (*end) | |
471 | continue; | |
472 | ||
d998b732 | 473 | rc = -1; |
ca6c41c5 DA |
474 | if (perf_event__prepare_comm(comm_event, _pid, machine, |
475 | &tgid, &ppid) != 0) | |
d998b732 | 476 | break; |
bfd66cc7 | 477 | |
4aa5f4f7 | 478 | if (perf_event__synthesize_fork(tool, fork_event, _pid, tgid, |
ca6c41c5 | 479 | ppid, process, machine) < 0) |
d998b732 | 480 | break; |
4aa5f4f7 ACM |
481 | /* |
482 | * Send the prepared comm event | |
483 | */ | |
3ea223ad | 484 | if (perf_tool__process_synth_event(tool, comm_event, machine, process) != 0) |
d998b732 | 485 | break; |
4aa5f4f7 | 486 | |
d998b732 | 487 | rc = 0; |
363b785f DZ |
488 | if (_pid == pid) { |
489 | /* process the parent's maps too */ | |
490 | rc = perf_event__synthesize_mmap_events(tool, mmap_event, pid, tgid, | |
9d9cad76 | 491 | process, machine, mmap_data, proc_map_timeout); |
d998b732 ACM |
492 | if (rc) |
493 | break; | |
363b785f | 494 | } |
bfd66cc7 DZ |
495 | } |
496 | ||
497 | closedir(tasks); | |
d998b732 | 498 | return rc; |
234fbbf5 ACM |
499 | } |
500 | ||
45694aa7 | 501 | int perf_event__synthesize_thread_map(struct perf_tool *tool, |
d20deb64 | 502 | struct thread_map *threads, |
7c940c18 | 503 | perf_event__handler_t process, |
62605dc5 | 504 | struct machine *machine, |
9d9cad76 KL |
505 | bool mmap_data, |
506 | unsigned int proc_map_timeout) | |
9c90a61c | 507 | { |
363b785f | 508 | union perf_event *comm_event, *mmap_event, *fork_event; |
defd8d38 | 509 | int err = -1, thread, j; |
9c90a61c | 510 | |
743eb868 | 511 | comm_event = malloc(sizeof(comm_event->comm) + machine->id_hdr_size); |
9c90a61c ACM |
512 | if (comm_event == NULL) |
513 | goto out; | |
514 | ||
b0fb978e | 515 | mmap_event = malloc(sizeof(mmap_event->mmap2) + machine->id_hdr_size); |
9c90a61c ACM |
516 | if (mmap_event == NULL) |
517 | goto out_free_comm; | |
518 | ||
363b785f DZ |
519 | fork_event = malloc(sizeof(fork_event->fork) + machine->id_hdr_size); |
520 | if (fork_event == NULL) | |
521 | goto out_free_mmap; | |
522 | ||
401b8e13 ACM |
523 | err = 0; |
524 | for (thread = 0; thread < threads->nr; ++thread) { | |
525 | if (__event__synthesize_thread(comm_event, mmap_event, | |
363b785f | 526 | fork_event, |
e13798c7 | 527 | thread_map__pid(threads, thread), 0, |
62605dc5 | 528 | process, tool, machine, |
9d9cad76 | 529 | mmap_data, proc_map_timeout)) { |
401b8e13 ACM |
530 | err = -1; |
531 | break; | |
532 | } | |
defd8d38 DA |
533 | |
534 | /* | |
535 | * comm.pid is set to thread group id by | |
536 | * perf_event__synthesize_comm | |
537 | */ | |
e13798c7 | 538 | if ((int) comm_event->comm.pid != thread_map__pid(threads, thread)) { |
defd8d38 DA |
539 | bool need_leader = true; |
540 | ||
541 | /* is thread group leader in thread_map? */ | |
542 | for (j = 0; j < threads->nr; ++j) { | |
e13798c7 | 543 | if ((int) comm_event->comm.pid == thread_map__pid(threads, j)) { |
defd8d38 DA |
544 | need_leader = false; |
545 | break; | |
546 | } | |
547 | } | |
548 | ||
549 | /* if not, generate events for it */ | |
550 | if (need_leader && | |
62605dc5 | 551 | __event__synthesize_thread(comm_event, mmap_event, |
363b785f | 552 | fork_event, |
62605dc5 ACM |
553 | comm_event->comm.pid, 0, |
554 | process, tool, machine, | |
9d9cad76 | 555 | mmap_data, proc_map_timeout)) { |
defd8d38 DA |
556 | err = -1; |
557 | break; | |
558 | } | |
559 | } | |
401b8e13 | 560 | } |
363b785f DZ |
561 | free(fork_event); |
562 | out_free_mmap: | |
9c90a61c ACM |
563 | free(mmap_event); |
564 | out_free_comm: | |
565 | free(comm_event); | |
566 | out: | |
567 | return err; | |
568 | } | |
569 | ||
45694aa7 | 570 | int perf_event__synthesize_threads(struct perf_tool *tool, |
d20deb64 | 571 | perf_event__handler_t process, |
9d9cad76 KL |
572 | struct machine *machine, |
573 | bool mmap_data, | |
574 | unsigned int proc_map_timeout) | |
234fbbf5 ACM |
575 | { |
576 | DIR *proc; | |
99563465 | 577 | char proc_path[PATH_MAX]; |
234fbbf5 | 578 | struct dirent dirent, *next; |
363b785f | 579 | union perf_event *comm_event, *mmap_event, *fork_event; |
9c90a61c ACM |
580 | int err = -1; |
581 | ||
574799bf NK |
582 | if (machine__is_default_guest(machine)) |
583 | return 0; | |
584 | ||
743eb868 | 585 | comm_event = malloc(sizeof(comm_event->comm) + machine->id_hdr_size); |
9c90a61c ACM |
586 | if (comm_event == NULL) |
587 | goto out; | |
588 | ||
b0fb978e | 589 | mmap_event = malloc(sizeof(mmap_event->mmap2) + machine->id_hdr_size); |
9c90a61c ACM |
590 | if (mmap_event == NULL) |
591 | goto out_free_comm; | |
234fbbf5 | 592 | |
363b785f DZ |
593 | fork_event = malloc(sizeof(fork_event->fork) + machine->id_hdr_size); |
594 | if (fork_event == NULL) | |
595 | goto out_free_mmap; | |
596 | ||
99563465 DY |
597 | snprintf(proc_path, sizeof(proc_path), "%s/proc", machine->root_dir); |
598 | proc = opendir(proc_path); | |
599 | ||
9c90a61c | 600 | if (proc == NULL) |
363b785f | 601 | goto out_free_fork; |
234fbbf5 ACM |
602 | |
603 | while (!readdir_r(proc, &dirent, &next) && next) { | |
604 | char *end; | |
605 | pid_t pid = strtol(dirent.d_name, &end, 10); | |
606 | ||
607 | if (*end) /* only interested in proper numerical dirents */ | |
608 | continue; | |
ba361c92 ACM |
609 | /* |
610 | * We may race with exiting thread, so don't stop just because | |
611 | * one thread couldn't be synthesized. | |
612 | */ | |
363b785f | 613 | __event__synthesize_thread(comm_event, mmap_event, fork_event, pid, |
9d9cad76 KL |
614 | 1, process, tool, machine, mmap_data, |
615 | proc_map_timeout); | |
234fbbf5 ACM |
616 | } |
617 | ||
9c90a61c | 618 | err = 0; |
1e6d5322 | 619 | closedir(proc); |
363b785f DZ |
620 | out_free_fork: |
621 | free(fork_event); | |
9c90a61c ACM |
622 | out_free_mmap: |
623 | free(mmap_event); | |
624 | out_free_comm: | |
625 | free(comm_event); | |
626 | out: | |
627 | return err; | |
234fbbf5 | 628 | } |
62daacb5 | 629 | |
56b03f3c ACM |
630 | struct process_symbol_args { |
631 | const char *name; | |
632 | u64 start; | |
633 | }; | |
634 | ||
3b01a413 | 635 | static int find_symbol_cb(void *arg, const char *name, char type, |
82151520 | 636 | u64 start) |
56b03f3c ACM |
637 | { |
638 | struct process_symbol_args *args = arg; | |
639 | ||
881516eb ACM |
640 | /* |
641 | * Must be a function or at least an alias, as in PARISC64, where "_text" is | |
642 | * an 'A' to the same address as "_stext". | |
643 | */ | |
644 | if (!(symbol_type__is_a(type, MAP__FUNCTION) || | |
645 | type == 'A') || strcmp(name, args->name)) | |
56b03f3c ACM |
646 | return 0; |
647 | ||
648 | args->start = start; | |
649 | return 1; | |
650 | } | |
651 | ||
29b596b5 AH |
652 | u64 kallsyms__get_function_start(const char *kallsyms_filename, |
653 | const char *symbol_name) | |
654 | { | |
655 | struct process_symbol_args args = { .name = symbol_name, }; | |
656 | ||
657 | if (kallsyms__parse(kallsyms_filename, &args, find_symbol_cb) <= 0) | |
658 | return 0; | |
659 | ||
660 | return args.start; | |
661 | } | |
662 | ||
45694aa7 | 663 | int perf_event__synthesize_kernel_mmap(struct perf_tool *tool, |
d20deb64 | 664 | perf_event__handler_t process, |
0ae617be | 665 | struct machine *machine) |
56b03f3c ACM |
666 | { |
667 | size_t size; | |
0ae617be | 668 | const char *mmap_name; |
a1645ce1 | 669 | char name_buff[PATH_MAX]; |
a5e813c6 | 670 | struct map *map = machine__kernel_map(machine); |
0ae617be | 671 | struct kmap *kmap; |
9c90a61c | 672 | int err; |
a5c2a4c9 AK |
673 | union perf_event *event; |
674 | ||
77e65977 | 675 | if (map == NULL) |
a5c2a4c9 AK |
676 | return -1; |
677 | ||
56b03f3c ACM |
678 | /* |
679 | * We should get this from /sys/kernel/sections/.text, but till that is | |
680 | * available use this, and after it is use this as a fallback for older | |
681 | * kernels. | |
682 | */ | |
a5c2a4c9 | 683 | event = zalloc((sizeof(event->mmap) + machine->id_hdr_size)); |
9c90a61c ACM |
684 | if (event == NULL) { |
685 | pr_debug("Not enough memory synthesizing mmap event " | |
686 | "for kernel modules\n"); | |
687 | return -1; | |
688 | } | |
56b03f3c | 689 | |
48ea8f54 | 690 | mmap_name = machine__mmap_name(machine, name_buff, sizeof(name_buff)); |
23346f21 | 691 | if (machine__is_host(machine)) { |
a1645ce1 ZY |
692 | /* |
693 | * kernel uses PERF_RECORD_MISC_USER for user space maps, | |
694 | * see kernel/perf_event.c __perf_event_mmap | |
695 | */ | |
9c90a61c | 696 | event->header.misc = PERF_RECORD_MISC_KERNEL; |
a1645ce1 | 697 | } else { |
9c90a61c | 698 | event->header.misc = PERF_RECORD_MISC_GUEST_KERNEL; |
0b9e01a4 | 699 | } |
56b03f3c | 700 | |
0ae617be | 701 | kmap = map__kmap(map); |
9c90a61c | 702 | size = snprintf(event->mmap.filename, sizeof(event->mmap.filename), |
0ae617be | 703 | "%s%s", mmap_name, kmap->ref_reloc_sym->name) + 1; |
9ac3e487 | 704 | size = PERF_ALIGN(size, sizeof(u64)); |
9c90a61c ACM |
705 | event->mmap.header.type = PERF_RECORD_MMAP; |
706 | event->mmap.header.size = (sizeof(event->mmap) - | |
743eb868 | 707 | (sizeof(event->mmap.filename) - size) + machine->id_hdr_size); |
0ae617be | 708 | event->mmap.pgoff = kmap->ref_reloc_sym->addr; |
9c90a61c ACM |
709 | event->mmap.start = map->start; |
710 | event->mmap.len = map->end - event->mmap.start; | |
711 | event->mmap.pid = machine->pid; | |
712 | ||
3ea223ad | 713 | err = perf_tool__process_synth_event(tool, event, machine, process); |
9c90a61c ACM |
714 | free(event); |
715 | ||
716 | return err; | |
56b03f3c ACM |
717 | } |
718 | ||
99471c96 JO |
719 | int perf_event__synthesize_thread_map2(struct perf_tool *tool, |
720 | struct thread_map *threads, | |
721 | perf_event__handler_t process, | |
722 | struct machine *machine) | |
723 | { | |
724 | union perf_event *event; | |
725 | int i, err, size; | |
726 | ||
727 | size = sizeof(event->thread_map); | |
728 | size += threads->nr * sizeof(event->thread_map.entries[0]); | |
729 | ||
730 | event = zalloc(size); | |
731 | if (!event) | |
732 | return -ENOMEM; | |
733 | ||
734 | event->header.type = PERF_RECORD_THREAD_MAP; | |
735 | event->header.size = size; | |
736 | event->thread_map.nr = threads->nr; | |
737 | ||
738 | for (i = 0; i < threads->nr; i++) { | |
739 | struct thread_map_event_entry *entry = &event->thread_map.entries[i]; | |
740 | char *comm = thread_map__comm(threads, i); | |
741 | ||
742 | if (!comm) | |
743 | comm = (char *) ""; | |
744 | ||
745 | entry->pid = thread_map__pid(threads, i); | |
746 | strncpy((char *) &entry->comm, comm, sizeof(entry->comm)); | |
747 | } | |
748 | ||
749 | err = process(tool, event, NULL, machine); | |
750 | ||
751 | free(event); | |
752 | return err; | |
753 | } | |
754 | ||
6c872901 JO |
755 | static void synthesize_cpus(struct cpu_map_entries *cpus, |
756 | struct cpu_map *map) | |
757 | { | |
758 | int i; | |
759 | ||
760 | cpus->nr = map->nr; | |
761 | ||
762 | for (i = 0; i < map->nr; i++) | |
763 | cpus->cpu[i] = map->map[i]; | |
764 | } | |
765 | ||
766 | static void synthesize_mask(struct cpu_map_mask *mask, | |
767 | struct cpu_map *map, int max) | |
768 | { | |
769 | int i; | |
770 | ||
771 | mask->nr = BITS_TO_LONGS(max); | |
772 | mask->long_size = sizeof(long); | |
773 | ||
774 | for (i = 0; i < map->nr; i++) | |
775 | set_bit(map->map[i], mask->mask); | |
776 | } | |
777 | ||
778 | static size_t cpus_size(struct cpu_map *map) | |
779 | { | |
780 | return sizeof(struct cpu_map_entries) + map->nr * sizeof(u16); | |
781 | } | |
782 | ||
783 | static size_t mask_size(struct cpu_map *map, int *max) | |
784 | { | |
785 | int i; | |
786 | ||
787 | *max = 0; | |
788 | ||
789 | for (i = 0; i < map->nr; i++) { | |
790 | /* bit possition of the cpu is + 1 */ | |
791 | int bit = map->map[i] + 1; | |
792 | ||
793 | if (bit > *max) | |
794 | *max = bit; | |
795 | } | |
796 | ||
797 | return sizeof(struct cpu_map_mask) + BITS_TO_LONGS(*max) * sizeof(long); | |
798 | } | |
799 | ||
800 | void *cpu_map_data__alloc(struct cpu_map *map, size_t *size, u16 *type, int *max) | |
801 | { | |
802 | size_t size_cpus, size_mask; | |
803 | bool is_dummy = cpu_map__empty(map); | |
804 | ||
805 | /* | |
806 | * Both array and mask data have variable size based | |
807 | * on the number of cpus and their actual values. | |
808 | * The size of the 'struct cpu_map_data' is: | |
809 | * | |
810 | * array = size of 'struct cpu_map_entries' + | |
811 | * number of cpus * sizeof(u64) | |
812 | * | |
813 | * mask = size of 'struct cpu_map_mask' + | |
814 | * maximum cpu bit converted to size of longs | |
815 | * | |
816 | * and finaly + the size of 'struct cpu_map_data'. | |
817 | */ | |
818 | size_cpus = cpus_size(map); | |
819 | size_mask = mask_size(map, max); | |
820 | ||
821 | if (is_dummy || (size_cpus < size_mask)) { | |
822 | *size += size_cpus; | |
823 | *type = PERF_CPU_MAP__CPUS; | |
824 | } else { | |
825 | *size += size_mask; | |
826 | *type = PERF_CPU_MAP__MASK; | |
827 | } | |
828 | ||
829 | *size += sizeof(struct cpu_map_data); | |
830 | return zalloc(*size); | |
831 | } | |
832 | ||
833 | void cpu_map_data__synthesize(struct cpu_map_data *data, struct cpu_map *map, | |
834 | u16 type, int max) | |
835 | { | |
836 | data->type = type; | |
837 | ||
838 | switch (type) { | |
839 | case PERF_CPU_MAP__CPUS: | |
840 | synthesize_cpus((struct cpu_map_entries *) data->data, map); | |
841 | break; | |
842 | case PERF_CPU_MAP__MASK: | |
843 | synthesize_mask((struct cpu_map_mask *) data->data, map, max); | |
844 | default: | |
845 | break; | |
846 | }; | |
847 | } | |
848 | ||
849 | static struct cpu_map_event* cpu_map_event__new(struct cpu_map *map) | |
850 | { | |
851 | size_t size = sizeof(struct cpu_map_event); | |
852 | struct cpu_map_event *event; | |
853 | int max; | |
854 | u16 type; | |
855 | ||
856 | event = cpu_map_data__alloc(map, &size, &type, &max); | |
857 | if (!event) | |
858 | return NULL; | |
859 | ||
860 | event->header.type = PERF_RECORD_CPU_MAP; | |
861 | event->header.size = size; | |
862 | event->data.type = type; | |
863 | ||
864 | cpu_map_data__synthesize(&event->data, map, type, max); | |
865 | return event; | |
866 | } | |
867 | ||
868 | int perf_event__synthesize_cpu_map(struct perf_tool *tool, | |
869 | struct cpu_map *map, | |
870 | perf_event__handler_t process, | |
871 | struct machine *machine) | |
872 | { | |
873 | struct cpu_map_event *event; | |
874 | int err; | |
875 | ||
876 | event = cpu_map_event__new(map); | |
877 | if (!event) | |
878 | return -ENOMEM; | |
879 | ||
880 | err = process(tool, (union perf_event *) event, NULL, machine); | |
881 | ||
882 | free(event); | |
883 | return err; | |
884 | } | |
885 | ||
67424342 JO |
886 | int perf_event__synthesize_stat_config(struct perf_tool *tool, |
887 | struct perf_stat_config *config, | |
888 | perf_event__handler_t process, | |
889 | struct machine *machine) | |
890 | { | |
891 | struct stat_config_event *event; | |
892 | int size, i = 0, err; | |
893 | ||
894 | size = sizeof(*event); | |
895 | size += (PERF_STAT_CONFIG_TERM__MAX * sizeof(event->data[0])); | |
896 | ||
897 | event = zalloc(size); | |
898 | if (!event) | |
899 | return -ENOMEM; | |
900 | ||
901 | event->header.type = PERF_RECORD_STAT_CONFIG; | |
902 | event->header.size = size; | |
903 | event->nr = PERF_STAT_CONFIG_TERM__MAX; | |
904 | ||
905 | #define ADD(__term, __val) \ | |
906 | event->data[i].tag = PERF_STAT_CONFIG_TERM__##__term; \ | |
907 | event->data[i].val = __val; \ | |
908 | i++; | |
909 | ||
910 | ADD(AGGR_MODE, config->aggr_mode) | |
911 | ADD(INTERVAL, config->interval) | |
912 | ADD(SCALE, config->scale) | |
913 | ||
914 | WARN_ONCE(i != PERF_STAT_CONFIG_TERM__MAX, | |
915 | "stat config terms unbalanced\n"); | |
916 | #undef ADD | |
917 | ||
918 | err = process(tool, (union perf_event *) event, NULL, machine); | |
919 | ||
920 | free(event); | |
921 | return err; | |
922 | } | |
923 | ||
5796f8f0 JO |
924 | int perf_event__synthesize_stat(struct perf_tool *tool, |
925 | u32 cpu, u32 thread, u64 id, | |
926 | struct perf_counts_values *count, | |
927 | perf_event__handler_t process, | |
928 | struct machine *machine) | |
929 | { | |
930 | struct stat_event event; | |
931 | ||
932 | event.header.type = PERF_RECORD_STAT; | |
933 | event.header.size = sizeof(event); | |
934 | event.header.misc = 0; | |
935 | ||
936 | event.id = id; | |
937 | event.cpu = cpu; | |
938 | event.thread = thread; | |
939 | event.val = count->val; | |
940 | event.ena = count->ena; | |
941 | event.run = count->run; | |
942 | ||
943 | return process(tool, (union perf_event *) &event, NULL, machine); | |
944 | } | |
945 | ||
d4c22591 JO |
946 | int perf_event__synthesize_stat_round(struct perf_tool *tool, |
947 | u64 evtime, u64 type, | |
948 | perf_event__handler_t process, | |
949 | struct machine *machine) | |
950 | { | |
951 | struct stat_round_event event; | |
952 | ||
953 | event.header.type = PERF_RECORD_STAT_ROUND; | |
954 | event.header.size = sizeof(event); | |
955 | event.header.misc = 0; | |
956 | ||
957 | event.time = evtime; | |
958 | event.type = type; | |
959 | ||
960 | return process(tool, (union perf_event *) &event, NULL, machine); | |
961 | } | |
962 | ||
8e381596 JO |
963 | void perf_event__read_stat_config(struct perf_stat_config *config, |
964 | struct stat_config_event *event) | |
965 | { | |
966 | unsigned i; | |
967 | ||
968 | for (i = 0; i < event->nr; i++) { | |
969 | ||
970 | switch (event->data[i].tag) { | |
971 | #define CASE(__term, __val) \ | |
972 | case PERF_STAT_CONFIG_TERM__##__term: \ | |
973 | config->__val = event->data[i].val; \ | |
974 | break; | |
975 | ||
976 | CASE(AGGR_MODE, aggr_mode) | |
977 | CASE(SCALE, scale) | |
978 | CASE(INTERVAL, interval) | |
979 | #undef CASE | |
980 | default: | |
981 | pr_warning("unknown stat config term %" PRIu64 "\n", | |
982 | event->data[i].tag); | |
983 | } | |
984 | } | |
985 | } | |
986 | ||
482ad897 ACM |
987 | size_t perf_event__fprintf_comm(union perf_event *event, FILE *fp) |
988 | { | |
022c50d0 AH |
989 | const char *s; |
990 | ||
991 | if (event->header.misc & PERF_RECORD_MISC_COMM_EXEC) | |
992 | s = " exec"; | |
993 | else | |
994 | s = ""; | |
995 | ||
50674065 | 996 | return fprintf(fp, "%s: %s:%d/%d\n", s, event->comm.comm, event->comm.pid, event->comm.tid); |
482ad897 ACM |
997 | } |
998 | ||
1d037ca1 | 999 | int perf_event__process_comm(struct perf_tool *tool __maybe_unused, |
d20deb64 | 1000 | union perf_event *event, |
162f0bef | 1001 | struct perf_sample *sample, |
743eb868 | 1002 | struct machine *machine) |
62daacb5 | 1003 | { |
162f0bef | 1004 | return machine__process_comm_event(machine, event, sample); |
62daacb5 ACM |
1005 | } |
1006 | ||
1d037ca1 | 1007 | int perf_event__process_lost(struct perf_tool *tool __maybe_unused, |
d20deb64 | 1008 | union perf_event *event, |
162f0bef | 1009 | struct perf_sample *sample, |
b0a7d1a0 | 1010 | struct machine *machine) |
62daacb5 | 1011 | { |
162f0bef | 1012 | return machine__process_lost_event(machine, event, sample); |
a1645ce1 | 1013 | } |
b7cece76 | 1014 | |
4a96f7a0 AH |
1015 | int perf_event__process_aux(struct perf_tool *tool __maybe_unused, |
1016 | union perf_event *event, | |
1017 | struct perf_sample *sample __maybe_unused, | |
1018 | struct machine *machine) | |
1019 | { | |
1020 | return machine__process_aux_event(machine, event); | |
1021 | } | |
1022 | ||
0ad21f68 AH |
1023 | int perf_event__process_itrace_start(struct perf_tool *tool __maybe_unused, |
1024 | union perf_event *event, | |
1025 | struct perf_sample *sample __maybe_unused, | |
1026 | struct machine *machine) | |
1027 | { | |
1028 | return machine__process_itrace_start_event(machine, event); | |
1029 | } | |
1030 | ||
c4937a91 KL |
1031 | int perf_event__process_lost_samples(struct perf_tool *tool __maybe_unused, |
1032 | union perf_event *event, | |
1033 | struct perf_sample *sample, | |
1034 | struct machine *machine) | |
1035 | { | |
1036 | return machine__process_lost_samples_event(machine, event, sample); | |
1037 | } | |
1038 | ||
0286039f AH |
1039 | int perf_event__process_switch(struct perf_tool *tool __maybe_unused, |
1040 | union perf_event *event, | |
1041 | struct perf_sample *sample __maybe_unused, | |
1042 | struct machine *machine) | |
1043 | { | |
1044 | return machine__process_switch_event(machine, event); | |
1045 | } | |
1046 | ||
482ad897 ACM |
1047 | size_t perf_event__fprintf_mmap(union perf_event *event, FILE *fp) |
1048 | { | |
62605dc5 | 1049 | return fprintf(fp, " %d/%d: [%#" PRIx64 "(%#" PRIx64 ") @ %#" PRIx64 "]: %c %s\n", |
482ad897 | 1050 | event->mmap.pid, event->mmap.tid, event->mmap.start, |
62605dc5 ACM |
1051 | event->mmap.len, event->mmap.pgoff, |
1052 | (event->header.misc & PERF_RECORD_MISC_MMAP_DATA) ? 'r' : 'x', | |
1053 | event->mmap.filename); | |
482ad897 ACM |
1054 | } |
1055 | ||
5c5e854b SE |
1056 | size_t perf_event__fprintf_mmap2(union perf_event *event, FILE *fp) |
1057 | { | |
1058 | return fprintf(fp, " %d/%d: [%#" PRIx64 "(%#" PRIx64 ") @ %#" PRIx64 | |
7ef80703 | 1059 | " %02x:%02x %"PRIu64" %"PRIu64"]: %c%c%c%c %s\n", |
5c5e854b SE |
1060 | event->mmap2.pid, event->mmap2.tid, event->mmap2.start, |
1061 | event->mmap2.len, event->mmap2.pgoff, event->mmap2.maj, | |
1062 | event->mmap2.min, event->mmap2.ino, | |
1063 | event->mmap2.ino_generation, | |
7ef80703 DZ |
1064 | (event->mmap2.prot & PROT_READ) ? 'r' : '-', |
1065 | (event->mmap2.prot & PROT_WRITE) ? 'w' : '-', | |
1066 | (event->mmap2.prot & PROT_EXEC) ? 'x' : '-', | |
1067 | (event->mmap2.flags & MAP_SHARED) ? 's' : 'p', | |
5c5e854b SE |
1068 | event->mmap2.filename); |
1069 | } | |
1070 | ||
ec7fa596 JO |
1071 | size_t perf_event__fprintf_thread_map(union perf_event *event, FILE *fp) |
1072 | { | |
1073 | struct thread_map *threads = thread_map__new_event(&event->thread_map); | |
1074 | size_t ret; | |
1075 | ||
1076 | ret = fprintf(fp, " nr: "); | |
1077 | ||
1078 | if (threads) | |
1079 | ret += thread_map__fprintf(threads, fp); | |
1080 | else | |
1081 | ret += fprintf(fp, "failed to get threads from event\n"); | |
1082 | ||
1083 | thread_map__put(threads); | |
1084 | return ret; | |
1085 | } | |
1086 | ||
eb12a1af JO |
1087 | size_t perf_event__fprintf_cpu_map(union perf_event *event, FILE *fp) |
1088 | { | |
1089 | struct cpu_map *cpus = cpu_map__new_data(&event->cpu_map.data); | |
1090 | size_t ret; | |
1091 | ||
1092 | ret = fprintf(fp, " nr: "); | |
1093 | ||
1094 | if (cpus) | |
1095 | ret += cpu_map__fprintf(cpus, fp); | |
1096 | else | |
1097 | ret += fprintf(fp, "failed to get cpumap from event\n"); | |
1098 | ||
1099 | cpu_map__put(cpus); | |
1100 | return ret; | |
1101 | } | |
1102 | ||
b0a7d1a0 | 1103 | int perf_event__process_mmap(struct perf_tool *tool __maybe_unused, |
d20deb64 | 1104 | union perf_event *event, |
162f0bef | 1105 | struct perf_sample *sample, |
743eb868 | 1106 | struct machine *machine) |
a1645ce1 | 1107 | { |
162f0bef | 1108 | return machine__process_mmap_event(machine, event, sample); |
62daacb5 ACM |
1109 | } |
1110 | ||
5c5e854b SE |
1111 | int perf_event__process_mmap2(struct perf_tool *tool __maybe_unused, |
1112 | union perf_event *event, | |
162f0bef | 1113 | struct perf_sample *sample, |
5c5e854b SE |
1114 | struct machine *machine) |
1115 | { | |
162f0bef | 1116 | return machine__process_mmap2_event(machine, event, sample); |
5c5e854b SE |
1117 | } |
1118 | ||
482ad897 ACM |
1119 | size_t perf_event__fprintf_task(union perf_event *event, FILE *fp) |
1120 | { | |
1121 | return fprintf(fp, "(%d:%d):(%d:%d)\n", | |
1122 | event->fork.pid, event->fork.tid, | |
1123 | event->fork.ppid, event->fork.ptid); | |
1124 | } | |
1125 | ||
f62d3f0f | 1126 | int perf_event__process_fork(struct perf_tool *tool __maybe_unused, |
d20deb64 | 1127 | union perf_event *event, |
162f0bef | 1128 | struct perf_sample *sample, |
f62d3f0f | 1129 | struct machine *machine) |
62daacb5 | 1130 | { |
162f0bef | 1131 | return machine__process_fork_event(machine, event, sample); |
62daacb5 | 1132 | } |
1ed091c4 | 1133 | |
f62d3f0f ACM |
1134 | int perf_event__process_exit(struct perf_tool *tool __maybe_unused, |
1135 | union perf_event *event, | |
162f0bef | 1136 | struct perf_sample *sample, |
f62d3f0f ACM |
1137 | struct machine *machine) |
1138 | { | |
162f0bef | 1139 | return machine__process_exit_event(machine, event, sample); |
f62d3f0f ACM |
1140 | } |
1141 | ||
4a96f7a0 AH |
1142 | size_t perf_event__fprintf_aux(union perf_event *event, FILE *fp) |
1143 | { | |
1144 | return fprintf(fp, " offset: %#"PRIx64" size: %#"PRIx64" flags: %#"PRIx64" [%s%s]\n", | |
1145 | event->aux.aux_offset, event->aux.aux_size, | |
1146 | event->aux.flags, | |
1147 | event->aux.flags & PERF_AUX_FLAG_TRUNCATED ? "T" : "", | |
1148 | event->aux.flags & PERF_AUX_FLAG_OVERWRITE ? "O" : ""); | |
1149 | } | |
1150 | ||
0ad21f68 AH |
1151 | size_t perf_event__fprintf_itrace_start(union perf_event *event, FILE *fp) |
1152 | { | |
1153 | return fprintf(fp, " pid: %u tid: %u\n", | |
1154 | event->itrace_start.pid, event->itrace_start.tid); | |
1155 | } | |
1156 | ||
0286039f AH |
1157 | size_t perf_event__fprintf_switch(union perf_event *event, FILE *fp) |
1158 | { | |
1159 | bool out = event->header.misc & PERF_RECORD_MISC_SWITCH_OUT; | |
1160 | const char *in_out = out ? "OUT" : "IN "; | |
1161 | ||
1162 | if (event->header.type == PERF_RECORD_SWITCH) | |
1163 | return fprintf(fp, " %s\n", in_out); | |
1164 | ||
1165 | return fprintf(fp, " %s %s pid/tid: %5u/%-5u\n", | |
1166 | in_out, out ? "next" : "prev", | |
1167 | event->context_switch.next_prev_pid, | |
1168 | event->context_switch.next_prev_tid); | |
1169 | } | |
1170 | ||
482ad897 ACM |
1171 | size_t perf_event__fprintf(union perf_event *event, FILE *fp) |
1172 | { | |
1173 | size_t ret = fprintf(fp, "PERF_RECORD_%s", | |
1174 | perf_event__name(event->header.type)); | |
1175 | ||
1176 | switch (event->header.type) { | |
1177 | case PERF_RECORD_COMM: | |
1178 | ret += perf_event__fprintf_comm(event, fp); | |
1179 | break; | |
1180 | case PERF_RECORD_FORK: | |
1181 | case PERF_RECORD_EXIT: | |
1182 | ret += perf_event__fprintf_task(event, fp); | |
1183 | break; | |
1184 | case PERF_RECORD_MMAP: | |
1185 | ret += perf_event__fprintf_mmap(event, fp); | |
1186 | break; | |
5c5e854b SE |
1187 | case PERF_RECORD_MMAP2: |
1188 | ret += perf_event__fprintf_mmap2(event, fp); | |
1189 | break; | |
4a96f7a0 AH |
1190 | case PERF_RECORD_AUX: |
1191 | ret += perf_event__fprintf_aux(event, fp); | |
1192 | break; | |
0ad21f68 AH |
1193 | case PERF_RECORD_ITRACE_START: |
1194 | ret += perf_event__fprintf_itrace_start(event, fp); | |
1195 | break; | |
0286039f AH |
1196 | case PERF_RECORD_SWITCH: |
1197 | case PERF_RECORD_SWITCH_CPU_WIDE: | |
1198 | ret += perf_event__fprintf_switch(event, fp); | |
1199 | break; | |
482ad897 ACM |
1200 | default: |
1201 | ret += fprintf(fp, "\n"); | |
1202 | } | |
1203 | ||
1204 | return ret; | |
1205 | } | |
1206 | ||
b0a7d1a0 ACM |
1207 | int perf_event__process(struct perf_tool *tool __maybe_unused, |
1208 | union perf_event *event, | |
162f0bef | 1209 | struct perf_sample *sample, |
b0a7d1a0 | 1210 | struct machine *machine) |
b83f920e | 1211 | { |
162f0bef | 1212 | return machine__process_event(machine, event, sample); |
b83f920e SD |
1213 | } |
1214 | ||
bb871a9c | 1215 | void thread__find_addr_map(struct thread *thread, u8 cpumode, |
743eb868 | 1216 | enum map_type type, u64 addr, |
326f59bf | 1217 | struct addr_location *al) |
1ed091c4 | 1218 | { |
93d5731d | 1219 | struct map_groups *mg = thread->mg; |
bb871a9c | 1220 | struct machine *machine = mg->machine; |
5b7ba82a | 1221 | bool load_map = false; |
1ed091c4 | 1222 | |
cc22e575 | 1223 | al->machine = machine; |
316c7136 | 1224 | al->thread = thread; |
1ed091c4 | 1225 | al->addr = addr; |
a1645ce1 | 1226 | al->cpumode = cpumode; |
b3cef7f6 | 1227 | al->filtered = 0; |
1ed091c4 | 1228 | |
743eb868 ACM |
1229 | if (machine == NULL) { |
1230 | al->map = NULL; | |
1231 | return; | |
1232 | } | |
1233 | ||
a1645ce1 | 1234 | if (cpumode == PERF_RECORD_MISC_KERNEL && perf_host) { |
1ed091c4 | 1235 | al->level = 'k'; |
23346f21 | 1236 | mg = &machine->kmaps; |
5b7ba82a | 1237 | load_map = true; |
a1645ce1 | 1238 | } else if (cpumode == PERF_RECORD_MISC_USER && perf_host) { |
1ed091c4 | 1239 | al->level = '.'; |
a1645ce1 ZY |
1240 | } else if (cpumode == PERF_RECORD_MISC_GUEST_KERNEL && perf_guest) { |
1241 | al->level = 'g'; | |
23346f21 | 1242 | mg = &machine->kmaps; |
5b7ba82a | 1243 | load_map = true; |
fb50bb43 DY |
1244 | } else if (cpumode == PERF_RECORD_MISC_GUEST_USER && perf_guest) { |
1245 | al->level = 'u'; | |
a1645ce1 | 1246 | } else { |
fb50bb43 | 1247 | al->level = 'H'; |
1ed091c4 | 1248 | al->map = NULL; |
a1645ce1 ZY |
1249 | |
1250 | if ((cpumode == PERF_RECORD_MISC_GUEST_USER || | |
1251 | cpumode == PERF_RECORD_MISC_GUEST_KERNEL) && | |
1252 | !perf_guest) | |
b3cef7f6 | 1253 | al->filtered |= (1 << HIST_FILTER__GUEST); |
a1645ce1 ZY |
1254 | if ((cpumode == PERF_RECORD_MISC_USER || |
1255 | cpumode == PERF_RECORD_MISC_KERNEL) && | |
1256 | !perf_host) | |
b3cef7f6 | 1257 | al->filtered |= (1 << HIST_FILTER__HOST); |
a1645ce1 | 1258 | |
1ed091c4 ACM |
1259 | return; |
1260 | } | |
1261 | try_again: | |
9958e1f0 | 1262 | al->map = map_groups__find(mg, type, al->addr); |
1ed091c4 ACM |
1263 | if (al->map == NULL) { |
1264 | /* | |
1265 | * If this is outside of all known maps, and is a negative | |
1266 | * address, try to look it up in the kernel dso, as it might be | |
1267 | * a vsyscall or vdso (which executes in user-mode). | |
1268 | * | |
1269 | * XXX This is nasty, we should have a symbol list in the | |
1270 | * "[vdso]" dso, but for now lets use the old trick of looking | |
1271 | * in the whole kernel symbol list. | |
1272 | */ | |
fbe2af45 AH |
1273 | if (cpumode == PERF_RECORD_MISC_USER && machine && |
1274 | mg != &machine->kmaps && | |
1275 | machine__kernel_ip(machine, al->addr)) { | |
23346f21 | 1276 | mg = &machine->kmaps; |
1f2a7069 | 1277 | load_map = true; |
1ed091c4 ACM |
1278 | goto try_again; |
1279 | } | |
5b7ba82a AH |
1280 | } else { |
1281 | /* | |
1282 | * Kernel maps might be changed when loading symbols so loading | |
1283 | * must be done prior to using kernel maps. | |
1284 | */ | |
1285 | if (load_map) | |
326f59bf | 1286 | map__load(al->map, machine->symbol_filter); |
1ed091c4 | 1287 | al->addr = al->map->map_ip(al->map, al->addr); |
5b7ba82a | 1288 | } |
59ee68ec ACM |
1289 | } |
1290 | ||
bb871a9c | 1291 | void thread__find_addr_location(struct thread *thread, |
743eb868 | 1292 | u8 cpumode, enum map_type type, u64 addr, |
61710bde | 1293 | struct addr_location *al) |
59ee68ec | 1294 | { |
bb871a9c | 1295 | thread__find_addr_map(thread, cpumode, type, addr, al); |
59ee68ec | 1296 | if (al->map != NULL) |
61710bde | 1297 | al->sym = map__find_symbol(al->map, al->addr, |
bb871a9c | 1298 | thread->mg->machine->symbol_filter); |
59ee68ec ACM |
1299 | else |
1300 | al->sym = NULL; | |
1ed091c4 ACM |
1301 | } |
1302 | ||
b91fc39f ACM |
1303 | /* |
1304 | * Callers need to drop the reference to al->thread, obtained in | |
1305 | * machine__findnew_thread() | |
1306 | */ | |
bb3eb566 ACM |
1307 | int machine__resolve(struct machine *machine, struct addr_location *al, |
1308 | struct perf_sample *sample) | |
1ed091c4 | 1309 | { |
ef89325f | 1310 | struct thread *thread = machine__findnew_thread(machine, sample->pid, |
13ce34df | 1311 | sample->tid); |
41a37e20 | 1312 | |
1ed091c4 ACM |
1313 | if (thread == NULL) |
1314 | return -1; | |
1315 | ||
b9c5143a | 1316 | dump_printf(" ... thread: %s:%d\n", thread__comm_str(thread), thread->tid); |
1f626bc3 | 1317 | /* |
743eb868 | 1318 | * Have we already created the kernel maps for this machine? |
1f626bc3 ACM |
1319 | * |
1320 | * This should have happened earlier, when we processed the kernel MMAP | |
1321 | * events, but for older perf.data files there was no such thing, so do | |
1322 | * it now. | |
1323 | */ | |
473398a2 | 1324 | if (sample->cpumode == PERF_RECORD_MISC_KERNEL && |
a5e813c6 | 1325 | machine__kernel_map(machine) == NULL) |
743eb868 | 1326 | machine__create_kernel_maps(machine); |
1ed091c4 | 1327 | |
473398a2 | 1328 | thread__find_addr_map(thread, sample->cpumode, MAP__FUNCTION, sample->ip, al); |
1ed091c4 ACM |
1329 | dump_printf(" ...... dso: %s\n", |
1330 | al->map ? al->map->dso->long_name : | |
1331 | al->level == 'H' ? "[hypervisor]" : "<not found>"); | |
466fa764 NK |
1332 | |
1333 | if (thread__is_filtered(thread)) | |
1334 | al->filtered |= (1 << HIST_FILTER__THREAD); | |
1335 | ||
96415e4d | 1336 | al->sym = NULL; |
8d50e5b4 | 1337 | al->cpu = sample->cpu; |
0c4c4deb KL |
1338 | al->socket = -1; |
1339 | ||
1340 | if (al->cpu >= 0) { | |
1341 | struct perf_env *env = machine->env; | |
1342 | ||
1343 | if (env && env->cpu) | |
1344 | al->socket = env->cpu[al->cpu].socket_id; | |
1345 | } | |
96415e4d ACM |
1346 | |
1347 | if (al->map) { | |
cb8f4e9a NK |
1348 | struct dso *dso = al->map->dso; |
1349 | ||
96415e4d | 1350 | if (symbol_conf.dso_list && |
cb8f4e9a NK |
1351 | (!dso || !(strlist__has_entry(symbol_conf.dso_list, |
1352 | dso->short_name) || | |
1353 | (dso->short_name != dso->long_name && | |
1354 | strlist__has_entry(symbol_conf.dso_list, | |
b3cef7f6 NK |
1355 | dso->long_name))))) { |
1356 | al->filtered |= (1 << HIST_FILTER__DSO); | |
b3cef7f6 | 1357 | } |
96415e4d | 1358 | |
e44baa3e AH |
1359 | al->sym = map__find_symbol(al->map, al->addr, |
1360 | machine->symbol_filter); | |
96415e4d | 1361 | } |
c410a338 | 1362 | |
1500b93b FT |
1363 | if (symbol_conf.sym_list && |
1364 | (!al->sym || !strlist__has_entry(symbol_conf.sym_list, | |
b3cef7f6 NK |
1365 | al->sym->name))) { |
1366 | al->filtered |= (1 << HIST_FILTER__SYMBOL); | |
b3cef7f6 | 1367 | } |
c410a338 | 1368 | |
c410a338 | 1369 | return 0; |
1ed091c4 | 1370 | } |
9b0d2d87 | 1371 | |
b91fc39f ACM |
1372 | /* |
1373 | * The preprocess_sample method will return with reference counts for the | |
1374 | * in it, when done using (and perhaps getting ref counts if needing to | |
1375 | * keep a pointer to one of those entries) it must be paired with | |
1376 | * addr_location__put(), so that the refcounts can be decremented. | |
1377 | */ | |
1378 | void addr_location__put(struct addr_location *al) | |
1379 | { | |
1380 | thread__zput(al->thread); | |
1381 | } | |
1382 | ||
9b0d2d87 AH |
1383 | bool is_bts_event(struct perf_event_attr *attr) |
1384 | { | |
1385 | return attr->type == PERF_TYPE_HARDWARE && | |
1386 | (attr->config & PERF_COUNT_HW_BRANCH_INSTRUCTIONS) && | |
1387 | attr->sample_period == 1; | |
1388 | } | |
1389 | ||
1390 | bool sample_addr_correlates_sym(struct perf_event_attr *attr) | |
1391 | { | |
1392 | if (attr->type == PERF_TYPE_SOFTWARE && | |
1393 | (attr->config == PERF_COUNT_SW_PAGE_FAULTS || | |
1394 | attr->config == PERF_COUNT_SW_PAGE_FAULTS_MIN || | |
1395 | attr->config == PERF_COUNT_SW_PAGE_FAULTS_MAJ)) | |
1396 | return true; | |
1397 | ||
1398 | if (is_bts_event(attr)) | |
1399 | return true; | |
1400 | ||
1401 | return false; | |
1402 | } | |
1403 | ||
c2740a87 ACM |
1404 | void thread__resolve(struct thread *thread, struct addr_location *al, |
1405 | struct perf_sample *sample) | |
9b0d2d87 | 1406 | { |
473398a2 | 1407 | thread__find_addr_map(thread, sample->cpumode, MAP__FUNCTION, sample->addr, al); |
9b0d2d87 | 1408 | if (!al->map) |
473398a2 | 1409 | thread__find_addr_map(thread, sample->cpumode, MAP__VARIABLE, |
9b0d2d87 AH |
1410 | sample->addr, al); |
1411 | ||
1412 | al->cpu = sample->cpu; | |
1413 | al->sym = NULL; | |
1414 | ||
1415 | if (al->map) | |
1416 | al->sym = map__find_symbol(al->map, al->addr, NULL); | |
1417 | } |