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Commit | Line | Data |
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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", |
46bc29b9 | 48 | [PERF_RECORD_TIME_CONV] = "TIME_CONV", |
c8446b9b ACM |
49 | }; |
50 | ||
8115d60c | 51 | const char *perf_event__name(unsigned int id) |
3835bc00 | 52 | { |
8115d60c | 53 | if (id >= ARRAY_SIZE(perf_event__names)) |
3835bc00 | 54 | return "INVALID"; |
8115d60c | 55 | if (!perf_event__names[id]) |
3835bc00 | 56 | return "UNKNOWN"; |
8115d60c | 57 | return perf_event__names[id]; |
3835bc00 TG |
58 | } |
59 | ||
3ea223ad ACM |
60 | static int perf_tool__process_synth_event(struct perf_tool *tool, |
61 | union perf_event *event, | |
62 | struct machine *machine, | |
63 | perf_event__handler_t process) | |
64 | { | |
65 | struct perf_sample synth_sample = { | |
640c03ce ACM |
66 | .pid = -1, |
67 | .tid = -1, | |
68 | .time = -1, | |
69 | .stream_id = -1, | |
70 | .cpu = -1, | |
71 | .period = 1, | |
3ea223ad ACM |
72 | .cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK, |
73 | }; | |
74 | ||
75 | return process(tool, event, &synth_sample, machine); | |
640c03ce ACM |
76 | }; |
77 | ||
5aa0b030 DA |
78 | /* |
79 | * Assumes that the first 4095 bytes of /proc/pid/stat contains | |
ca6c41c5 | 80 | * the comm, tgid and ppid. |
5aa0b030 | 81 | */ |
ca6c41c5 DA |
82 | static int perf_event__get_comm_ids(pid_t pid, char *comm, size_t len, |
83 | pid_t *tgid, pid_t *ppid) | |
234fbbf5 | 84 | { |
234fbbf5 | 85 | char filename[PATH_MAX]; |
5aa0b030 DA |
86 | char bf[4096]; |
87 | int fd; | |
38349665 AH |
88 | size_t size = 0; |
89 | ssize_t n; | |
ca6c41c5 DA |
90 | char *nl, *name, *tgids, *ppids; |
91 | ||
92 | *tgid = -1; | |
93 | *ppid = -1; | |
234fbbf5 ACM |
94 | |
95 | snprintf(filename, sizeof(filename), "/proc/%d/status", pid); | |
96 | ||
5aa0b030 DA |
97 | fd = open(filename, O_RDONLY); |
98 | if (fd < 0) { | |
234fbbf5 | 99 | pr_debug("couldn't open %s\n", filename); |
ca6c41c5 | 100 | return -1; |
234fbbf5 ACM |
101 | } |
102 | ||
5aa0b030 DA |
103 | n = read(fd, bf, sizeof(bf) - 1); |
104 | close(fd); | |
105 | if (n <= 0) { | |
ca6c41c5 | 106 | pr_warning("Couldn't get COMM, tigd and ppid for pid %d\n", |
5aa0b030 DA |
107 | pid); |
108 | return -1; | |
234fbbf5 | 109 | } |
5aa0b030 | 110 | bf[n] = '\0'; |
234fbbf5 | 111 | |
5aa0b030 DA |
112 | name = strstr(bf, "Name:"); |
113 | tgids = strstr(bf, "Tgid:"); | |
ca6c41c5 | 114 | ppids = strstr(bf, "PPid:"); |
5aa0b030 DA |
115 | |
116 | if (name) { | |
117 | name += 5; /* strlen("Name:") */ | |
118 | ||
119 | while (*name && isspace(*name)) | |
120 | ++name; | |
121 | ||
122 | nl = strchr(name, '\n'); | |
123 | if (nl) | |
124 | *nl = '\0'; | |
125 | ||
126 | size = strlen(name); | |
127 | if (size >= len) | |
128 | size = len - 1; | |
129 | memcpy(comm, name, size); | |
130 | comm[size] = '\0'; | |
131 | } else { | |
132 | pr_debug("Name: string not found for pid %d\n", pid); | |
133 | } | |
134 | ||
135 | if (tgids) { | |
136 | tgids += 5; /* strlen("Tgid:") */ | |
ca6c41c5 | 137 | *tgid = atoi(tgids); |
5aa0b030 DA |
138 | } else { |
139 | pr_debug("Tgid: string not found for pid %d\n", pid); | |
140 | } | |
f5faf726 | 141 | |
ca6c41c5 DA |
142 | if (ppids) { |
143 | ppids += 5; /* strlen("PPid:") */ | |
144 | *ppid = atoi(ppids); | |
145 | } else { | |
146 | pr_debug("PPid: string not found for pid %d\n", pid); | |
147 | } | |
148 | ||
149 | return 0; | |
f5faf726 DA |
150 | } |
151 | ||
ca6c41c5 DA |
152 | static int perf_event__prepare_comm(union perf_event *event, pid_t pid, |
153 | struct machine *machine, | |
154 | pid_t *tgid, pid_t *ppid) | |
f5faf726 | 155 | { |
f5faf726 | 156 | size_t size; |
ca6c41c5 DA |
157 | |
158 | *ppid = -1; | |
f5faf726 DA |
159 | |
160 | memset(&event->comm, 0, sizeof(event->comm)); | |
161 | ||
ca6c41c5 DA |
162 | if (machine__is_host(machine)) { |
163 | if (perf_event__get_comm_ids(pid, event->comm.comm, | |
164 | sizeof(event->comm.comm), | |
165 | tgid, ppid) != 0) { | |
166 | return -1; | |
167 | } | |
168 | } else { | |
169 | *tgid = machine->pid; | |
170 | } | |
f5db57c4 | 171 | |
ca6c41c5 DA |
172 | if (*tgid < 0) |
173 | return -1; | |
f5faf726 | 174 | |
ca6c41c5 | 175 | event->comm.pid = *tgid; |
9c90a61c | 176 | event->comm.header.type = PERF_RECORD_COMM; |
f5faf726 DA |
177 | |
178 | size = strlen(event->comm.comm) + 1; | |
9ac3e487 | 179 | size = PERF_ALIGN(size, sizeof(u64)); |
743eb868 | 180 | memset(event->comm.comm + size, 0, machine->id_hdr_size); |
9c90a61c ACM |
181 | event->comm.header.size = (sizeof(event->comm) - |
182 | (sizeof(event->comm.comm) - size) + | |
743eb868 | 183 | machine->id_hdr_size); |
bfd66cc7 | 184 | event->comm.tid = pid; |
ca6c41c5 DA |
185 | |
186 | return 0; | |
4aa5f4f7 ACM |
187 | } |
188 | ||
e803cf97 | 189 | pid_t perf_event__synthesize_comm(struct perf_tool *tool, |
4aa5f4f7 ACM |
190 | union perf_event *event, pid_t pid, |
191 | perf_event__handler_t process, | |
192 | struct machine *machine) | |
193 | { | |
ca6c41c5 | 194 | pid_t tgid, ppid; |
4aa5f4f7 | 195 | |
ca6c41c5 DA |
196 | if (perf_event__prepare_comm(event, pid, machine, &tgid, &ppid) != 0) |
197 | return -1; | |
f5faf726 | 198 | |
3ea223ad | 199 | if (perf_tool__process_synth_event(tool, event, machine, process) != 0) |
bfd66cc7 | 200 | return -1; |
234fbbf5 | 201 | |
9c90a61c | 202 | return tgid; |
234fbbf5 ACM |
203 | } |
204 | ||
363b785f | 205 | static int perf_event__synthesize_fork(struct perf_tool *tool, |
ca6c41c5 DA |
206 | union perf_event *event, |
207 | pid_t pid, pid_t tgid, pid_t ppid, | |
208 | perf_event__handler_t process, | |
363b785f DZ |
209 | struct machine *machine) |
210 | { | |
211 | memset(&event->fork, 0, sizeof(event->fork) + machine->id_hdr_size); | |
212 | ||
7764a385 DA |
213 | /* |
214 | * for main thread set parent to ppid from status file. For other | |
215 | * threads set parent pid to main thread. ie., assume main thread | |
216 | * spawns all threads in a process | |
217 | */ | |
218 | if (tgid == pid) { | |
219 | event->fork.ppid = ppid; | |
220 | event->fork.ptid = ppid; | |
221 | } else { | |
222 | event->fork.ppid = tgid; | |
223 | event->fork.ptid = tgid; | |
224 | } | |
363b785f DZ |
225 | event->fork.pid = tgid; |
226 | event->fork.tid = pid; | |
227 | event->fork.header.type = PERF_RECORD_FORK; | |
228 | ||
229 | event->fork.header.size = (sizeof(event->fork) + machine->id_hdr_size); | |
230 | ||
3ea223ad | 231 | if (perf_tool__process_synth_event(tool, event, machine, process) != 0) |
363b785f DZ |
232 | return -1; |
233 | ||
234 | return 0; | |
235 | } | |
236 | ||
a18382b6 JO |
237 | int perf_event__synthesize_mmap_events(struct perf_tool *tool, |
238 | union perf_event *event, | |
239 | pid_t pid, pid_t tgid, | |
240 | perf_event__handler_t process, | |
241 | struct machine *machine, | |
9d9cad76 KL |
242 | bool mmap_data, |
243 | unsigned int proc_map_timeout) | |
234fbbf5 ACM |
244 | { |
245 | char filename[PATH_MAX]; | |
246 | FILE *fp; | |
930e6fcd KL |
247 | unsigned long long t; |
248 | bool truncation = false; | |
9d9cad76 | 249 | unsigned long long timeout = proc_map_timeout * 1000000ULL; |
1e6d5322 | 250 | int rc = 0; |
234fbbf5 | 251 | |
c239c25a DY |
252 | if (machine__is_default_guest(machine)) |
253 | return 0; | |
254 | ||
99563465 DY |
255 | snprintf(filename, sizeof(filename), "%s/proc/%d/maps", |
256 | machine->root_dir, pid); | |
234fbbf5 ACM |
257 | |
258 | fp = fopen(filename, "r"); | |
259 | if (fp == NULL) { | |
260 | /* | |
261 | * We raced with a task exiting - just return: | |
262 | */ | |
263 | pr_debug("couldn't open %s\n", filename); | |
264 | return -1; | |
265 | } | |
266 | ||
a5a5ba72 | 267 | event->header.type = PERF_RECORD_MMAP2; |
930e6fcd | 268 | t = rdclock(); |
9c90a61c | 269 | |
234fbbf5 | 270 | while (1) { |
60648033 NK |
271 | char bf[BUFSIZ]; |
272 | char prot[5]; | |
273 | char execname[PATH_MAX]; | |
274 | char anonstr[] = "//anon"; | |
a5a5ba72 | 275 | unsigned int ino; |
234fbbf5 | 276 | size_t size; |
5c5e854b | 277 | ssize_t n; |
60648033 | 278 | |
234fbbf5 ACM |
279 | if (fgets(bf, sizeof(bf), fp) == NULL) |
280 | break; | |
281 | ||
9d9cad76 KL |
282 | if ((rdclock() - t) > timeout) { |
283 | pr_warning("Reading %s time out. " | |
284 | "You may want to increase " | |
285 | "the time limit by --proc-map-timeout\n", | |
286 | filename); | |
930e6fcd KL |
287 | truncation = true; |
288 | goto out; | |
289 | } | |
290 | ||
60648033 NK |
291 | /* ensure null termination since stack will be reused. */ |
292 | strcpy(execname, ""); | |
293 | ||
234fbbf5 | 294 | /* 00400000-0040c000 r-xp 00000000 fd:01 41038 /bin/cat */ |
89fee59b | 295 | n = sscanf(bf, "%"PRIx64"-%"PRIx64" %s %"PRIx64" %x:%x %u %[^\n]\n", |
a5a5ba72 DZ |
296 | &event->mmap2.start, &event->mmap2.len, prot, |
297 | &event->mmap2.pgoff, &event->mmap2.maj, | |
298 | &event->mmap2.min, | |
299 | &ino, execname); | |
300 | ||
9d4ecc88 DZ |
301 | /* |
302 | * Anon maps don't have the execname. | |
303 | */ | |
a5a5ba72 | 304 | if (n < 7) |
5c5e854b | 305 | continue; |
a5a5ba72 DZ |
306 | |
307 | event->mmap2.ino = (u64)ino; | |
308 | ||
62605dc5 ACM |
309 | /* |
310 | * Just like the kernel, see __perf_event_mmap in kernel/perf_event.c | |
311 | */ | |
73547aac DY |
312 | if (machine__is_host(machine)) |
313 | event->header.misc = PERF_RECORD_MISC_USER; | |
314 | else | |
315 | event->header.misc = PERF_RECORD_MISC_GUEST_USER; | |
60648033 | 316 | |
7ef80703 DZ |
317 | /* map protection and flags bits */ |
318 | event->mmap2.prot = 0; | |
319 | event->mmap2.flags = 0; | |
320 | if (prot[0] == 'r') | |
321 | event->mmap2.prot |= PROT_READ; | |
322 | if (prot[1] == 'w') | |
323 | event->mmap2.prot |= PROT_WRITE; | |
324 | if (prot[2] == 'x') | |
325 | event->mmap2.prot |= PROT_EXEC; | |
326 | ||
327 | if (prot[3] == 's') | |
328 | event->mmap2.flags |= MAP_SHARED; | |
329 | else | |
330 | event->mmap2.flags |= MAP_PRIVATE; | |
331 | ||
62605dc5 ACM |
332 | if (prot[2] != 'x') { |
333 | if (!mmap_data || prot[0] != 'r') | |
334 | continue; | |
335 | ||
336 | event->header.misc |= PERF_RECORD_MISC_MMAP_DATA; | |
337 | } | |
60648033 | 338 | |
930e6fcd KL |
339 | out: |
340 | if (truncation) | |
341 | event->header.misc |= PERF_RECORD_MISC_PROC_MAP_PARSE_TIMEOUT; | |
342 | ||
60648033 NK |
343 | if (!strcmp(execname, "")) |
344 | strcpy(execname, anonstr); | |
345 | ||
346 | size = strlen(execname) + 1; | |
a5a5ba72 | 347 | memcpy(event->mmap2.filename, execname, size); |
60648033 | 348 | size = PERF_ALIGN(size, sizeof(u64)); |
a5a5ba72 DZ |
349 | event->mmap2.len -= event->mmap.start; |
350 | event->mmap2.header.size = (sizeof(event->mmap2) - | |
351 | (sizeof(event->mmap2.filename) - size)); | |
352 | memset(event->mmap2.filename + size, 0, machine->id_hdr_size); | |
353 | event->mmap2.header.size += machine->id_hdr_size; | |
354 | event->mmap2.pid = tgid; | |
355 | event->mmap2.tid = pid; | |
60648033 | 356 | |
3ea223ad | 357 | if (perf_tool__process_synth_event(tool, event, machine, process) != 0) { |
60648033 NK |
358 | rc = -1; |
359 | break; | |
234fbbf5 | 360 | } |
930e6fcd KL |
361 | |
362 | if (truncation) | |
363 | break; | |
234fbbf5 ACM |
364 | } |
365 | ||
366 | fclose(fp); | |
1e6d5322 | 367 | return rc; |
234fbbf5 ACM |
368 | } |
369 | ||
45694aa7 | 370 | int perf_event__synthesize_modules(struct perf_tool *tool, |
d20deb64 | 371 | perf_event__handler_t process, |
8115d60c | 372 | struct machine *machine) |
b7cece76 | 373 | { |
1e6d5322 | 374 | int rc = 0; |
4bb7123d | 375 | struct map *pos; |
23346f21 | 376 | struct map_groups *kmaps = &machine->kmaps; |
1eee78ae | 377 | struct maps *maps = &kmaps->maps[MAP__FUNCTION]; |
8115d60c | 378 | union perf_event *event = zalloc((sizeof(event->mmap) + |
743eb868 | 379 | machine->id_hdr_size)); |
9c90a61c ACM |
380 | if (event == NULL) { |
381 | pr_debug("Not enough memory synthesizing mmap event " | |
382 | "for kernel modules\n"); | |
383 | return -1; | |
384 | } | |
385 | ||
386 | event->header.type = PERF_RECORD_MMAP; | |
b7cece76 | 387 | |
a1645ce1 ZY |
388 | /* |
389 | * kernel uses 0 for user space maps, see kernel/perf_event.c | |
390 | * __perf_event_mmap | |
391 | */ | |
23346f21 | 392 | if (machine__is_host(machine)) |
9c90a61c | 393 | event->header.misc = PERF_RECORD_MISC_KERNEL; |
a1645ce1 | 394 | else |
9c90a61c | 395 | event->header.misc = PERF_RECORD_MISC_GUEST_KERNEL; |
a1645ce1 | 396 | |
4bb7123d | 397 | for (pos = maps__first(maps); pos; pos = map__next(pos)) { |
b7cece76 | 398 | size_t size; |
b7cece76 | 399 | |
ab9c2bdc | 400 | if (__map__is_kernel(pos)) |
b7cece76 ACM |
401 | continue; |
402 | ||
9ac3e487 | 403 | size = PERF_ALIGN(pos->dso->long_name_len + 1, sizeof(u64)); |
9c90a61c ACM |
404 | event->mmap.header.type = PERF_RECORD_MMAP; |
405 | event->mmap.header.size = (sizeof(event->mmap) - | |
406 | (sizeof(event->mmap.filename) - size)); | |
743eb868 ACM |
407 | memset(event->mmap.filename + size, 0, machine->id_hdr_size); |
408 | event->mmap.header.size += machine->id_hdr_size; | |
9c90a61c ACM |
409 | event->mmap.start = pos->start; |
410 | event->mmap.len = pos->end - pos->start; | |
411 | event->mmap.pid = machine->pid; | |
412 | ||
413 | memcpy(event->mmap.filename, pos->dso->long_name, | |
b7cece76 | 414 | pos->dso->long_name_len + 1); |
3ea223ad | 415 | if (perf_tool__process_synth_event(tool, event, machine, process) != 0) { |
1e6d5322 DA |
416 | rc = -1; |
417 | break; | |
418 | } | |
b7cece76 ACM |
419 | } |
420 | ||
9c90a61c | 421 | free(event); |
1e6d5322 | 422 | return rc; |
b7cece76 ACM |
423 | } |
424 | ||
8115d60c ACM |
425 | static int __event__synthesize_thread(union perf_event *comm_event, |
426 | union perf_event *mmap_event, | |
363b785f | 427 | union perf_event *fork_event, |
defd8d38 DA |
428 | pid_t pid, int full, |
429 | perf_event__handler_t process, | |
45694aa7 | 430 | struct perf_tool *tool, |
9d9cad76 KL |
431 | struct machine *machine, |
432 | bool mmap_data, | |
433 | unsigned int proc_map_timeout) | |
234fbbf5 | 434 | { |
bfd66cc7 DZ |
435 | char filename[PATH_MAX]; |
436 | DIR *tasks; | |
7093b4c9 | 437 | struct dirent *dirent; |
ca6c41c5 | 438 | pid_t tgid, ppid; |
d998b732 | 439 | int rc = 0; |
bfd66cc7 DZ |
440 | |
441 | /* special case: only send one comm event using passed in pid */ | |
442 | if (!full) { | |
443 | tgid = perf_event__synthesize_comm(tool, comm_event, pid, | |
444 | process, machine); | |
445 | ||
446 | if (tgid == -1) | |
447 | return -1; | |
448 | ||
449 | return perf_event__synthesize_mmap_events(tool, mmap_event, pid, tgid, | |
9d9cad76 KL |
450 | process, machine, mmap_data, |
451 | proc_map_timeout); | |
bfd66cc7 DZ |
452 | } |
453 | ||
454 | if (machine__is_default_guest(machine)) | |
455 | return 0; | |
456 | ||
457 | snprintf(filename, sizeof(filename), "%s/proc/%d/task", | |
458 | machine->root_dir, pid); | |
459 | ||
460 | tasks = opendir(filename); | |
461 | if (tasks == NULL) { | |
462 | pr_debug("couldn't open %s\n", filename); | |
463 | return 0; | |
464 | } | |
465 | ||
7093b4c9 | 466 | while ((dirent = readdir(tasks)) != NULL) { |
bfd66cc7 | 467 | char *end; |
bfd66cc7 DZ |
468 | pid_t _pid; |
469 | ||
7093b4c9 | 470 | _pid = strtol(dirent->d_name, &end, 10); |
bfd66cc7 DZ |
471 | if (*end) |
472 | continue; | |
473 | ||
d998b732 | 474 | rc = -1; |
ca6c41c5 DA |
475 | if (perf_event__prepare_comm(comm_event, _pid, machine, |
476 | &tgid, &ppid) != 0) | |
d998b732 | 477 | break; |
bfd66cc7 | 478 | |
4aa5f4f7 | 479 | if (perf_event__synthesize_fork(tool, fork_event, _pid, tgid, |
ca6c41c5 | 480 | ppid, process, machine) < 0) |
d998b732 | 481 | break; |
4aa5f4f7 ACM |
482 | /* |
483 | * Send the prepared comm event | |
484 | */ | |
3ea223ad | 485 | if (perf_tool__process_synth_event(tool, comm_event, machine, process) != 0) |
d998b732 | 486 | break; |
4aa5f4f7 | 487 | |
d998b732 | 488 | rc = 0; |
363b785f DZ |
489 | if (_pid == pid) { |
490 | /* process the parent's maps too */ | |
491 | rc = perf_event__synthesize_mmap_events(tool, mmap_event, pid, tgid, | |
9d9cad76 | 492 | process, machine, mmap_data, proc_map_timeout); |
d998b732 ACM |
493 | if (rc) |
494 | break; | |
363b785f | 495 | } |
bfd66cc7 DZ |
496 | } |
497 | ||
498 | closedir(tasks); | |
d998b732 | 499 | return rc; |
234fbbf5 ACM |
500 | } |
501 | ||
45694aa7 | 502 | int perf_event__synthesize_thread_map(struct perf_tool *tool, |
d20deb64 | 503 | struct thread_map *threads, |
7c940c18 | 504 | perf_event__handler_t process, |
62605dc5 | 505 | struct machine *machine, |
9d9cad76 KL |
506 | bool mmap_data, |
507 | unsigned int proc_map_timeout) | |
9c90a61c | 508 | { |
363b785f | 509 | union perf_event *comm_event, *mmap_event, *fork_event; |
defd8d38 | 510 | int err = -1, thread, j; |
9c90a61c | 511 | |
743eb868 | 512 | comm_event = malloc(sizeof(comm_event->comm) + machine->id_hdr_size); |
9c90a61c ACM |
513 | if (comm_event == NULL) |
514 | goto out; | |
515 | ||
b0fb978e | 516 | mmap_event = malloc(sizeof(mmap_event->mmap2) + machine->id_hdr_size); |
9c90a61c ACM |
517 | if (mmap_event == NULL) |
518 | goto out_free_comm; | |
519 | ||
363b785f DZ |
520 | fork_event = malloc(sizeof(fork_event->fork) + machine->id_hdr_size); |
521 | if (fork_event == NULL) | |
522 | goto out_free_mmap; | |
523 | ||
401b8e13 ACM |
524 | err = 0; |
525 | for (thread = 0; thread < threads->nr; ++thread) { | |
526 | if (__event__synthesize_thread(comm_event, mmap_event, | |
363b785f | 527 | fork_event, |
e13798c7 | 528 | thread_map__pid(threads, thread), 0, |
62605dc5 | 529 | process, tool, machine, |
9d9cad76 | 530 | mmap_data, proc_map_timeout)) { |
401b8e13 ACM |
531 | err = -1; |
532 | break; | |
533 | } | |
defd8d38 DA |
534 | |
535 | /* | |
536 | * comm.pid is set to thread group id by | |
537 | * perf_event__synthesize_comm | |
538 | */ | |
e13798c7 | 539 | if ((int) comm_event->comm.pid != thread_map__pid(threads, thread)) { |
defd8d38 DA |
540 | bool need_leader = true; |
541 | ||
542 | /* is thread group leader in thread_map? */ | |
543 | for (j = 0; j < threads->nr; ++j) { | |
e13798c7 | 544 | if ((int) comm_event->comm.pid == thread_map__pid(threads, j)) { |
defd8d38 DA |
545 | need_leader = false; |
546 | break; | |
547 | } | |
548 | } | |
549 | ||
550 | /* if not, generate events for it */ | |
551 | if (need_leader && | |
62605dc5 | 552 | __event__synthesize_thread(comm_event, mmap_event, |
363b785f | 553 | fork_event, |
62605dc5 ACM |
554 | comm_event->comm.pid, 0, |
555 | process, tool, machine, | |
9d9cad76 | 556 | mmap_data, proc_map_timeout)) { |
defd8d38 DA |
557 | err = -1; |
558 | break; | |
559 | } | |
560 | } | |
401b8e13 | 561 | } |
363b785f DZ |
562 | free(fork_event); |
563 | out_free_mmap: | |
9c90a61c ACM |
564 | free(mmap_event); |
565 | out_free_comm: | |
566 | free(comm_event); | |
567 | out: | |
568 | return err; | |
569 | } | |
570 | ||
45694aa7 | 571 | int perf_event__synthesize_threads(struct perf_tool *tool, |
d20deb64 | 572 | perf_event__handler_t process, |
9d9cad76 KL |
573 | struct machine *machine, |
574 | bool mmap_data, | |
575 | unsigned int proc_map_timeout) | |
234fbbf5 ACM |
576 | { |
577 | DIR *proc; | |
99563465 | 578 | char proc_path[PATH_MAX]; |
7093b4c9 | 579 | struct dirent *dirent; |
363b785f | 580 | union perf_event *comm_event, *mmap_event, *fork_event; |
9c90a61c ACM |
581 | int err = -1; |
582 | ||
574799bf NK |
583 | if (machine__is_default_guest(machine)) |
584 | return 0; | |
585 | ||
743eb868 | 586 | comm_event = malloc(sizeof(comm_event->comm) + machine->id_hdr_size); |
9c90a61c ACM |
587 | if (comm_event == NULL) |
588 | goto out; | |
589 | ||
b0fb978e | 590 | mmap_event = malloc(sizeof(mmap_event->mmap2) + machine->id_hdr_size); |
9c90a61c ACM |
591 | if (mmap_event == NULL) |
592 | goto out_free_comm; | |
234fbbf5 | 593 | |
363b785f DZ |
594 | fork_event = malloc(sizeof(fork_event->fork) + machine->id_hdr_size); |
595 | if (fork_event == NULL) | |
596 | goto out_free_mmap; | |
597 | ||
99563465 DY |
598 | snprintf(proc_path, sizeof(proc_path), "%s/proc", machine->root_dir); |
599 | proc = opendir(proc_path); | |
600 | ||
9c90a61c | 601 | if (proc == NULL) |
363b785f | 602 | goto out_free_fork; |
234fbbf5 | 603 | |
7093b4c9 | 604 | while ((dirent = readdir(proc)) != NULL) { |
234fbbf5 | 605 | char *end; |
7093b4c9 | 606 | pid_t pid = strtol(dirent->d_name, &end, 10); |
234fbbf5 ACM |
607 | |
608 | if (*end) /* only interested in proper numerical dirents */ | |
609 | continue; | |
ba361c92 ACM |
610 | /* |
611 | * We may race with exiting thread, so don't stop just because | |
612 | * one thread couldn't be synthesized. | |
613 | */ | |
363b785f | 614 | __event__synthesize_thread(comm_event, mmap_event, fork_event, pid, |
9d9cad76 KL |
615 | 1, process, tool, machine, mmap_data, |
616 | proc_map_timeout); | |
234fbbf5 ACM |
617 | } |
618 | ||
9c90a61c | 619 | err = 0; |
1e6d5322 | 620 | closedir(proc); |
363b785f DZ |
621 | out_free_fork: |
622 | free(fork_event); | |
9c90a61c ACM |
623 | out_free_mmap: |
624 | free(mmap_event); | |
625 | out_free_comm: | |
626 | free(comm_event); | |
627 | out: | |
628 | return err; | |
234fbbf5 | 629 | } |
62daacb5 | 630 | |
56b03f3c ACM |
631 | struct process_symbol_args { |
632 | const char *name; | |
633 | u64 start; | |
634 | }; | |
635 | ||
3b01a413 | 636 | static int find_symbol_cb(void *arg, const char *name, char type, |
82151520 | 637 | u64 start) |
56b03f3c ACM |
638 | { |
639 | struct process_symbol_args *args = arg; | |
640 | ||
881516eb ACM |
641 | /* |
642 | * Must be a function or at least an alias, as in PARISC64, where "_text" is | |
643 | * an 'A' to the same address as "_stext". | |
644 | */ | |
645 | if (!(symbol_type__is_a(type, MAP__FUNCTION) || | |
646 | type == 'A') || strcmp(name, args->name)) | |
56b03f3c ACM |
647 | return 0; |
648 | ||
649 | args->start = start; | |
650 | return 1; | |
651 | } | |
652 | ||
29b596b5 AH |
653 | u64 kallsyms__get_function_start(const char *kallsyms_filename, |
654 | const char *symbol_name) | |
655 | { | |
656 | struct process_symbol_args args = { .name = symbol_name, }; | |
657 | ||
658 | if (kallsyms__parse(kallsyms_filename, &args, find_symbol_cb) <= 0) | |
659 | return 0; | |
660 | ||
661 | return args.start; | |
662 | } | |
663 | ||
45694aa7 | 664 | int perf_event__synthesize_kernel_mmap(struct perf_tool *tool, |
d20deb64 | 665 | perf_event__handler_t process, |
0ae617be | 666 | struct machine *machine) |
56b03f3c ACM |
667 | { |
668 | size_t size; | |
0ae617be | 669 | const char *mmap_name; |
a1645ce1 | 670 | char name_buff[PATH_MAX]; |
a5e813c6 | 671 | struct map *map = machine__kernel_map(machine); |
0ae617be | 672 | struct kmap *kmap; |
9c90a61c | 673 | int err; |
a5c2a4c9 AK |
674 | union perf_event *event; |
675 | ||
3dc6c1d5 WN |
676 | if (symbol_conf.kptr_restrict) |
677 | return -1; | |
77e65977 | 678 | if (map == NULL) |
a5c2a4c9 AK |
679 | return -1; |
680 | ||
56b03f3c ACM |
681 | /* |
682 | * We should get this from /sys/kernel/sections/.text, but till that is | |
683 | * available use this, and after it is use this as a fallback for older | |
684 | * kernels. | |
685 | */ | |
a5c2a4c9 | 686 | event = zalloc((sizeof(event->mmap) + machine->id_hdr_size)); |
9c90a61c ACM |
687 | if (event == NULL) { |
688 | pr_debug("Not enough memory synthesizing mmap event " | |
689 | "for kernel modules\n"); | |
690 | return -1; | |
691 | } | |
56b03f3c | 692 | |
48ea8f54 | 693 | mmap_name = machine__mmap_name(machine, name_buff, sizeof(name_buff)); |
23346f21 | 694 | if (machine__is_host(machine)) { |
a1645ce1 ZY |
695 | /* |
696 | * kernel uses PERF_RECORD_MISC_USER for user space maps, | |
697 | * see kernel/perf_event.c __perf_event_mmap | |
698 | */ | |
9c90a61c | 699 | event->header.misc = PERF_RECORD_MISC_KERNEL; |
a1645ce1 | 700 | } else { |
9c90a61c | 701 | event->header.misc = PERF_RECORD_MISC_GUEST_KERNEL; |
0b9e01a4 | 702 | } |
56b03f3c | 703 | |
0ae617be | 704 | kmap = map__kmap(map); |
9c90a61c | 705 | size = snprintf(event->mmap.filename, sizeof(event->mmap.filename), |
0ae617be | 706 | "%s%s", mmap_name, kmap->ref_reloc_sym->name) + 1; |
9ac3e487 | 707 | size = PERF_ALIGN(size, sizeof(u64)); |
9c90a61c ACM |
708 | event->mmap.header.type = PERF_RECORD_MMAP; |
709 | event->mmap.header.size = (sizeof(event->mmap) - | |
743eb868 | 710 | (sizeof(event->mmap.filename) - size) + machine->id_hdr_size); |
0ae617be | 711 | event->mmap.pgoff = kmap->ref_reloc_sym->addr; |
9c90a61c ACM |
712 | event->mmap.start = map->start; |
713 | event->mmap.len = map->end - event->mmap.start; | |
714 | event->mmap.pid = machine->pid; | |
715 | ||
3ea223ad | 716 | err = perf_tool__process_synth_event(tool, event, machine, process); |
9c90a61c ACM |
717 | free(event); |
718 | ||
719 | return err; | |
56b03f3c ACM |
720 | } |
721 | ||
99471c96 JO |
722 | int perf_event__synthesize_thread_map2(struct perf_tool *tool, |
723 | struct thread_map *threads, | |
724 | perf_event__handler_t process, | |
725 | struct machine *machine) | |
726 | { | |
727 | union perf_event *event; | |
728 | int i, err, size; | |
729 | ||
730 | size = sizeof(event->thread_map); | |
731 | size += threads->nr * sizeof(event->thread_map.entries[0]); | |
732 | ||
733 | event = zalloc(size); | |
734 | if (!event) | |
735 | return -ENOMEM; | |
736 | ||
737 | event->header.type = PERF_RECORD_THREAD_MAP; | |
738 | event->header.size = size; | |
739 | event->thread_map.nr = threads->nr; | |
740 | ||
741 | for (i = 0; i < threads->nr; i++) { | |
742 | struct thread_map_event_entry *entry = &event->thread_map.entries[i]; | |
743 | char *comm = thread_map__comm(threads, i); | |
744 | ||
745 | if (!comm) | |
746 | comm = (char *) ""; | |
747 | ||
748 | entry->pid = thread_map__pid(threads, i); | |
749 | strncpy((char *) &entry->comm, comm, sizeof(entry->comm)); | |
750 | } | |
751 | ||
752 | err = process(tool, event, NULL, machine); | |
753 | ||
754 | free(event); | |
755 | return err; | |
756 | } | |
757 | ||
6c872901 JO |
758 | static void synthesize_cpus(struct cpu_map_entries *cpus, |
759 | struct cpu_map *map) | |
760 | { | |
761 | int i; | |
762 | ||
763 | cpus->nr = map->nr; | |
764 | ||
765 | for (i = 0; i < map->nr; i++) | |
766 | cpus->cpu[i] = map->map[i]; | |
767 | } | |
768 | ||
769 | static void synthesize_mask(struct cpu_map_mask *mask, | |
770 | struct cpu_map *map, int max) | |
771 | { | |
772 | int i; | |
773 | ||
774 | mask->nr = BITS_TO_LONGS(max); | |
775 | mask->long_size = sizeof(long); | |
776 | ||
777 | for (i = 0; i < map->nr; i++) | |
778 | set_bit(map->map[i], mask->mask); | |
779 | } | |
780 | ||
781 | static size_t cpus_size(struct cpu_map *map) | |
782 | { | |
783 | return sizeof(struct cpu_map_entries) + map->nr * sizeof(u16); | |
784 | } | |
785 | ||
786 | static size_t mask_size(struct cpu_map *map, int *max) | |
787 | { | |
788 | int i; | |
789 | ||
790 | *max = 0; | |
791 | ||
792 | for (i = 0; i < map->nr; i++) { | |
793 | /* bit possition of the cpu is + 1 */ | |
794 | int bit = map->map[i] + 1; | |
795 | ||
796 | if (bit > *max) | |
797 | *max = bit; | |
798 | } | |
799 | ||
800 | return sizeof(struct cpu_map_mask) + BITS_TO_LONGS(*max) * sizeof(long); | |
801 | } | |
802 | ||
803 | void *cpu_map_data__alloc(struct cpu_map *map, size_t *size, u16 *type, int *max) | |
804 | { | |
805 | size_t size_cpus, size_mask; | |
806 | bool is_dummy = cpu_map__empty(map); | |
807 | ||
808 | /* | |
809 | * Both array and mask data have variable size based | |
810 | * on the number of cpus and their actual values. | |
811 | * The size of the 'struct cpu_map_data' is: | |
812 | * | |
813 | * array = size of 'struct cpu_map_entries' + | |
814 | * number of cpus * sizeof(u64) | |
815 | * | |
816 | * mask = size of 'struct cpu_map_mask' + | |
817 | * maximum cpu bit converted to size of longs | |
818 | * | |
819 | * and finaly + the size of 'struct cpu_map_data'. | |
820 | */ | |
821 | size_cpus = cpus_size(map); | |
822 | size_mask = mask_size(map, max); | |
823 | ||
824 | if (is_dummy || (size_cpus < size_mask)) { | |
825 | *size += size_cpus; | |
826 | *type = PERF_CPU_MAP__CPUS; | |
827 | } else { | |
828 | *size += size_mask; | |
829 | *type = PERF_CPU_MAP__MASK; | |
830 | } | |
831 | ||
832 | *size += sizeof(struct cpu_map_data); | |
833 | return zalloc(*size); | |
834 | } | |
835 | ||
836 | void cpu_map_data__synthesize(struct cpu_map_data *data, struct cpu_map *map, | |
837 | u16 type, int max) | |
838 | { | |
839 | data->type = type; | |
840 | ||
841 | switch (type) { | |
842 | case PERF_CPU_MAP__CPUS: | |
843 | synthesize_cpus((struct cpu_map_entries *) data->data, map); | |
844 | break; | |
845 | case PERF_CPU_MAP__MASK: | |
846 | synthesize_mask((struct cpu_map_mask *) data->data, map, max); | |
847 | default: | |
848 | break; | |
849 | }; | |
850 | } | |
851 | ||
852 | static struct cpu_map_event* cpu_map_event__new(struct cpu_map *map) | |
853 | { | |
854 | size_t size = sizeof(struct cpu_map_event); | |
855 | struct cpu_map_event *event; | |
856 | int max; | |
857 | u16 type; | |
858 | ||
859 | event = cpu_map_data__alloc(map, &size, &type, &max); | |
860 | if (!event) | |
861 | return NULL; | |
862 | ||
863 | event->header.type = PERF_RECORD_CPU_MAP; | |
864 | event->header.size = size; | |
865 | event->data.type = type; | |
866 | ||
867 | cpu_map_data__synthesize(&event->data, map, type, max); | |
868 | return event; | |
869 | } | |
870 | ||
871 | int perf_event__synthesize_cpu_map(struct perf_tool *tool, | |
872 | struct cpu_map *map, | |
873 | perf_event__handler_t process, | |
874 | struct machine *machine) | |
875 | { | |
876 | struct cpu_map_event *event; | |
877 | int err; | |
878 | ||
879 | event = cpu_map_event__new(map); | |
880 | if (!event) | |
881 | return -ENOMEM; | |
882 | ||
883 | err = process(tool, (union perf_event *) event, NULL, machine); | |
884 | ||
885 | free(event); | |
886 | return err; | |
887 | } | |
888 | ||
67424342 JO |
889 | int perf_event__synthesize_stat_config(struct perf_tool *tool, |
890 | struct perf_stat_config *config, | |
891 | perf_event__handler_t process, | |
892 | struct machine *machine) | |
893 | { | |
894 | struct stat_config_event *event; | |
895 | int size, i = 0, err; | |
896 | ||
897 | size = sizeof(*event); | |
898 | size += (PERF_STAT_CONFIG_TERM__MAX * sizeof(event->data[0])); | |
899 | ||
900 | event = zalloc(size); | |
901 | if (!event) | |
902 | return -ENOMEM; | |
903 | ||
904 | event->header.type = PERF_RECORD_STAT_CONFIG; | |
905 | event->header.size = size; | |
906 | event->nr = PERF_STAT_CONFIG_TERM__MAX; | |
907 | ||
908 | #define ADD(__term, __val) \ | |
909 | event->data[i].tag = PERF_STAT_CONFIG_TERM__##__term; \ | |
910 | event->data[i].val = __val; \ | |
911 | i++; | |
912 | ||
913 | ADD(AGGR_MODE, config->aggr_mode) | |
914 | ADD(INTERVAL, config->interval) | |
915 | ADD(SCALE, config->scale) | |
916 | ||
917 | WARN_ONCE(i != PERF_STAT_CONFIG_TERM__MAX, | |
918 | "stat config terms unbalanced\n"); | |
919 | #undef ADD | |
920 | ||
921 | err = process(tool, (union perf_event *) event, NULL, machine); | |
922 | ||
923 | free(event); | |
924 | return err; | |
925 | } | |
926 | ||
5796f8f0 JO |
927 | int perf_event__synthesize_stat(struct perf_tool *tool, |
928 | u32 cpu, u32 thread, u64 id, | |
929 | struct perf_counts_values *count, | |
930 | perf_event__handler_t process, | |
931 | struct machine *machine) | |
932 | { | |
933 | struct stat_event event; | |
934 | ||
935 | event.header.type = PERF_RECORD_STAT; | |
936 | event.header.size = sizeof(event); | |
937 | event.header.misc = 0; | |
938 | ||
939 | event.id = id; | |
940 | event.cpu = cpu; | |
941 | event.thread = thread; | |
942 | event.val = count->val; | |
943 | event.ena = count->ena; | |
944 | event.run = count->run; | |
945 | ||
946 | return process(tool, (union perf_event *) &event, NULL, machine); | |
947 | } | |
948 | ||
d4c22591 JO |
949 | int perf_event__synthesize_stat_round(struct perf_tool *tool, |
950 | u64 evtime, u64 type, | |
951 | perf_event__handler_t process, | |
952 | struct machine *machine) | |
953 | { | |
954 | struct stat_round_event event; | |
955 | ||
956 | event.header.type = PERF_RECORD_STAT_ROUND; | |
957 | event.header.size = sizeof(event); | |
958 | event.header.misc = 0; | |
959 | ||
960 | event.time = evtime; | |
961 | event.type = type; | |
962 | ||
963 | return process(tool, (union perf_event *) &event, NULL, machine); | |
964 | } | |
965 | ||
8e381596 JO |
966 | void perf_event__read_stat_config(struct perf_stat_config *config, |
967 | struct stat_config_event *event) | |
968 | { | |
969 | unsigned i; | |
970 | ||
971 | for (i = 0; i < event->nr; i++) { | |
972 | ||
973 | switch (event->data[i].tag) { | |
974 | #define CASE(__term, __val) \ | |
975 | case PERF_STAT_CONFIG_TERM__##__term: \ | |
976 | config->__val = event->data[i].val; \ | |
977 | break; | |
978 | ||
979 | CASE(AGGR_MODE, aggr_mode) | |
980 | CASE(SCALE, scale) | |
981 | CASE(INTERVAL, interval) | |
982 | #undef CASE | |
983 | default: | |
984 | pr_warning("unknown stat config term %" PRIu64 "\n", | |
985 | event->data[i].tag); | |
986 | } | |
987 | } | |
988 | } | |
989 | ||
482ad897 ACM |
990 | size_t perf_event__fprintf_comm(union perf_event *event, FILE *fp) |
991 | { | |
022c50d0 AH |
992 | const char *s; |
993 | ||
994 | if (event->header.misc & PERF_RECORD_MISC_COMM_EXEC) | |
995 | s = " exec"; | |
996 | else | |
997 | s = ""; | |
998 | ||
50674065 | 999 | return fprintf(fp, "%s: %s:%d/%d\n", s, event->comm.comm, event->comm.pid, event->comm.tid); |
482ad897 ACM |
1000 | } |
1001 | ||
1d037ca1 | 1002 | int perf_event__process_comm(struct perf_tool *tool __maybe_unused, |
d20deb64 | 1003 | union perf_event *event, |
162f0bef | 1004 | struct perf_sample *sample, |
743eb868 | 1005 | struct machine *machine) |
62daacb5 | 1006 | { |
162f0bef | 1007 | return machine__process_comm_event(machine, event, sample); |
62daacb5 ACM |
1008 | } |
1009 | ||
1d037ca1 | 1010 | int perf_event__process_lost(struct perf_tool *tool __maybe_unused, |
d20deb64 | 1011 | union perf_event *event, |
162f0bef | 1012 | struct perf_sample *sample, |
b0a7d1a0 | 1013 | struct machine *machine) |
62daacb5 | 1014 | { |
162f0bef | 1015 | return machine__process_lost_event(machine, event, sample); |
a1645ce1 | 1016 | } |
b7cece76 | 1017 | |
4a96f7a0 AH |
1018 | int perf_event__process_aux(struct perf_tool *tool __maybe_unused, |
1019 | union perf_event *event, | |
1020 | struct perf_sample *sample __maybe_unused, | |
1021 | struct machine *machine) | |
1022 | { | |
1023 | return machine__process_aux_event(machine, event); | |
1024 | } | |
1025 | ||
0ad21f68 AH |
1026 | int perf_event__process_itrace_start(struct perf_tool *tool __maybe_unused, |
1027 | union perf_event *event, | |
1028 | struct perf_sample *sample __maybe_unused, | |
1029 | struct machine *machine) | |
1030 | { | |
1031 | return machine__process_itrace_start_event(machine, event); | |
1032 | } | |
1033 | ||
c4937a91 KL |
1034 | int perf_event__process_lost_samples(struct perf_tool *tool __maybe_unused, |
1035 | union perf_event *event, | |
1036 | struct perf_sample *sample, | |
1037 | struct machine *machine) | |
1038 | { | |
1039 | return machine__process_lost_samples_event(machine, event, sample); | |
1040 | } | |
1041 | ||
0286039f AH |
1042 | int perf_event__process_switch(struct perf_tool *tool __maybe_unused, |
1043 | union perf_event *event, | |
1044 | struct perf_sample *sample __maybe_unused, | |
1045 | struct machine *machine) | |
1046 | { | |
1047 | return machine__process_switch_event(machine, event); | |
1048 | } | |
1049 | ||
482ad897 ACM |
1050 | size_t perf_event__fprintf_mmap(union perf_event *event, FILE *fp) |
1051 | { | |
62605dc5 | 1052 | return fprintf(fp, " %d/%d: [%#" PRIx64 "(%#" PRIx64 ") @ %#" PRIx64 "]: %c %s\n", |
482ad897 | 1053 | event->mmap.pid, event->mmap.tid, event->mmap.start, |
62605dc5 ACM |
1054 | event->mmap.len, event->mmap.pgoff, |
1055 | (event->header.misc & PERF_RECORD_MISC_MMAP_DATA) ? 'r' : 'x', | |
1056 | event->mmap.filename); | |
482ad897 ACM |
1057 | } |
1058 | ||
5c5e854b SE |
1059 | size_t perf_event__fprintf_mmap2(union perf_event *event, FILE *fp) |
1060 | { | |
1061 | return fprintf(fp, " %d/%d: [%#" PRIx64 "(%#" PRIx64 ") @ %#" PRIx64 | |
7ef80703 | 1062 | " %02x:%02x %"PRIu64" %"PRIu64"]: %c%c%c%c %s\n", |
5c5e854b SE |
1063 | event->mmap2.pid, event->mmap2.tid, event->mmap2.start, |
1064 | event->mmap2.len, event->mmap2.pgoff, event->mmap2.maj, | |
1065 | event->mmap2.min, event->mmap2.ino, | |
1066 | event->mmap2.ino_generation, | |
7ef80703 DZ |
1067 | (event->mmap2.prot & PROT_READ) ? 'r' : '-', |
1068 | (event->mmap2.prot & PROT_WRITE) ? 'w' : '-', | |
1069 | (event->mmap2.prot & PROT_EXEC) ? 'x' : '-', | |
1070 | (event->mmap2.flags & MAP_SHARED) ? 's' : 'p', | |
5c5e854b SE |
1071 | event->mmap2.filename); |
1072 | } | |
1073 | ||
ec7fa596 JO |
1074 | size_t perf_event__fprintf_thread_map(union perf_event *event, FILE *fp) |
1075 | { | |
1076 | struct thread_map *threads = thread_map__new_event(&event->thread_map); | |
1077 | size_t ret; | |
1078 | ||
1079 | ret = fprintf(fp, " nr: "); | |
1080 | ||
1081 | if (threads) | |
1082 | ret += thread_map__fprintf(threads, fp); | |
1083 | else | |
1084 | ret += fprintf(fp, "failed to get threads from event\n"); | |
1085 | ||
1086 | thread_map__put(threads); | |
1087 | return ret; | |
1088 | } | |
1089 | ||
eb12a1af JO |
1090 | size_t perf_event__fprintf_cpu_map(union perf_event *event, FILE *fp) |
1091 | { | |
1092 | struct cpu_map *cpus = cpu_map__new_data(&event->cpu_map.data); | |
1093 | size_t ret; | |
1094 | ||
a24020e6 | 1095 | ret = fprintf(fp, ": "); |
eb12a1af JO |
1096 | |
1097 | if (cpus) | |
1098 | ret += cpu_map__fprintf(cpus, fp); | |
1099 | else | |
1100 | ret += fprintf(fp, "failed to get cpumap from event\n"); | |
1101 | ||
1102 | cpu_map__put(cpus); | |
1103 | return ret; | |
1104 | } | |
1105 | ||
b0a7d1a0 | 1106 | int perf_event__process_mmap(struct perf_tool *tool __maybe_unused, |
d20deb64 | 1107 | union perf_event *event, |
162f0bef | 1108 | struct perf_sample *sample, |
743eb868 | 1109 | struct machine *machine) |
a1645ce1 | 1110 | { |
162f0bef | 1111 | return machine__process_mmap_event(machine, event, sample); |
62daacb5 ACM |
1112 | } |
1113 | ||
5c5e854b SE |
1114 | int perf_event__process_mmap2(struct perf_tool *tool __maybe_unused, |
1115 | union perf_event *event, | |
162f0bef | 1116 | struct perf_sample *sample, |
5c5e854b SE |
1117 | struct machine *machine) |
1118 | { | |
162f0bef | 1119 | return machine__process_mmap2_event(machine, event, sample); |
5c5e854b SE |
1120 | } |
1121 | ||
482ad897 ACM |
1122 | size_t perf_event__fprintf_task(union perf_event *event, FILE *fp) |
1123 | { | |
1124 | return fprintf(fp, "(%d:%d):(%d:%d)\n", | |
1125 | event->fork.pid, event->fork.tid, | |
1126 | event->fork.ppid, event->fork.ptid); | |
1127 | } | |
1128 | ||
f62d3f0f | 1129 | int perf_event__process_fork(struct perf_tool *tool __maybe_unused, |
d20deb64 | 1130 | union perf_event *event, |
162f0bef | 1131 | struct perf_sample *sample, |
f62d3f0f | 1132 | struct machine *machine) |
62daacb5 | 1133 | { |
162f0bef | 1134 | return machine__process_fork_event(machine, event, sample); |
62daacb5 | 1135 | } |
1ed091c4 | 1136 | |
f62d3f0f ACM |
1137 | int perf_event__process_exit(struct perf_tool *tool __maybe_unused, |
1138 | union perf_event *event, | |
162f0bef | 1139 | struct perf_sample *sample, |
f62d3f0f ACM |
1140 | struct machine *machine) |
1141 | { | |
162f0bef | 1142 | return machine__process_exit_event(machine, event, sample); |
f62d3f0f ACM |
1143 | } |
1144 | ||
4a96f7a0 AH |
1145 | size_t perf_event__fprintf_aux(union perf_event *event, FILE *fp) |
1146 | { | |
1147 | return fprintf(fp, " offset: %#"PRIx64" size: %#"PRIx64" flags: %#"PRIx64" [%s%s]\n", | |
1148 | event->aux.aux_offset, event->aux.aux_size, | |
1149 | event->aux.flags, | |
1150 | event->aux.flags & PERF_AUX_FLAG_TRUNCATED ? "T" : "", | |
1151 | event->aux.flags & PERF_AUX_FLAG_OVERWRITE ? "O" : ""); | |
1152 | } | |
1153 | ||
0ad21f68 AH |
1154 | size_t perf_event__fprintf_itrace_start(union perf_event *event, FILE *fp) |
1155 | { | |
1156 | return fprintf(fp, " pid: %u tid: %u\n", | |
1157 | event->itrace_start.pid, event->itrace_start.tid); | |
1158 | } | |
1159 | ||
0286039f AH |
1160 | size_t perf_event__fprintf_switch(union perf_event *event, FILE *fp) |
1161 | { | |
1162 | bool out = event->header.misc & PERF_RECORD_MISC_SWITCH_OUT; | |
1163 | const char *in_out = out ? "OUT" : "IN "; | |
1164 | ||
1165 | if (event->header.type == PERF_RECORD_SWITCH) | |
1166 | return fprintf(fp, " %s\n", in_out); | |
1167 | ||
1168 | return fprintf(fp, " %s %s pid/tid: %5u/%-5u\n", | |
1169 | in_out, out ? "next" : "prev", | |
1170 | event->context_switch.next_prev_pid, | |
1171 | event->context_switch.next_prev_tid); | |
1172 | } | |
1173 | ||
482ad897 ACM |
1174 | size_t perf_event__fprintf(union perf_event *event, FILE *fp) |
1175 | { | |
1176 | size_t ret = fprintf(fp, "PERF_RECORD_%s", | |
1177 | perf_event__name(event->header.type)); | |
1178 | ||
1179 | switch (event->header.type) { | |
1180 | case PERF_RECORD_COMM: | |
1181 | ret += perf_event__fprintf_comm(event, fp); | |
1182 | break; | |
1183 | case PERF_RECORD_FORK: | |
1184 | case PERF_RECORD_EXIT: | |
1185 | ret += perf_event__fprintf_task(event, fp); | |
1186 | break; | |
1187 | case PERF_RECORD_MMAP: | |
1188 | ret += perf_event__fprintf_mmap(event, fp); | |
1189 | break; | |
5c5e854b SE |
1190 | case PERF_RECORD_MMAP2: |
1191 | ret += perf_event__fprintf_mmap2(event, fp); | |
1192 | break; | |
4a96f7a0 AH |
1193 | case PERF_RECORD_AUX: |
1194 | ret += perf_event__fprintf_aux(event, fp); | |
1195 | break; | |
0ad21f68 AH |
1196 | case PERF_RECORD_ITRACE_START: |
1197 | ret += perf_event__fprintf_itrace_start(event, fp); | |
1198 | break; | |
0286039f AH |
1199 | case PERF_RECORD_SWITCH: |
1200 | case PERF_RECORD_SWITCH_CPU_WIDE: | |
1201 | ret += perf_event__fprintf_switch(event, fp); | |
1202 | break; | |
482ad897 ACM |
1203 | default: |
1204 | ret += fprintf(fp, "\n"); | |
1205 | } | |
1206 | ||
1207 | return ret; | |
1208 | } | |
1209 | ||
b0a7d1a0 ACM |
1210 | int perf_event__process(struct perf_tool *tool __maybe_unused, |
1211 | union perf_event *event, | |
162f0bef | 1212 | struct perf_sample *sample, |
b0a7d1a0 | 1213 | struct machine *machine) |
b83f920e | 1214 | { |
162f0bef | 1215 | return machine__process_event(machine, event, sample); |
b83f920e SD |
1216 | } |
1217 | ||
bb871a9c | 1218 | void thread__find_addr_map(struct thread *thread, u8 cpumode, |
743eb868 | 1219 | enum map_type type, u64 addr, |
326f59bf | 1220 | struct addr_location *al) |
1ed091c4 | 1221 | { |
93d5731d | 1222 | struct map_groups *mg = thread->mg; |
bb871a9c | 1223 | struct machine *machine = mg->machine; |
5b7ba82a | 1224 | bool load_map = false; |
1ed091c4 | 1225 | |
cc22e575 | 1226 | al->machine = machine; |
316c7136 | 1227 | al->thread = thread; |
1ed091c4 | 1228 | al->addr = addr; |
a1645ce1 | 1229 | al->cpumode = cpumode; |
b3cef7f6 | 1230 | al->filtered = 0; |
1ed091c4 | 1231 | |
743eb868 ACM |
1232 | if (machine == NULL) { |
1233 | al->map = NULL; | |
1234 | return; | |
1235 | } | |
1236 | ||
a1645ce1 | 1237 | if (cpumode == PERF_RECORD_MISC_KERNEL && perf_host) { |
1ed091c4 | 1238 | al->level = 'k'; |
23346f21 | 1239 | mg = &machine->kmaps; |
5b7ba82a | 1240 | load_map = true; |
a1645ce1 | 1241 | } else if (cpumode == PERF_RECORD_MISC_USER && perf_host) { |
1ed091c4 | 1242 | al->level = '.'; |
a1645ce1 ZY |
1243 | } else if (cpumode == PERF_RECORD_MISC_GUEST_KERNEL && perf_guest) { |
1244 | al->level = 'g'; | |
23346f21 | 1245 | mg = &machine->kmaps; |
5b7ba82a | 1246 | load_map = true; |
fb50bb43 DY |
1247 | } else if (cpumode == PERF_RECORD_MISC_GUEST_USER && perf_guest) { |
1248 | al->level = 'u'; | |
a1645ce1 | 1249 | } else { |
fb50bb43 | 1250 | al->level = 'H'; |
1ed091c4 | 1251 | al->map = NULL; |
a1645ce1 ZY |
1252 | |
1253 | if ((cpumode == PERF_RECORD_MISC_GUEST_USER || | |
1254 | cpumode == PERF_RECORD_MISC_GUEST_KERNEL) && | |
1255 | !perf_guest) | |
b3cef7f6 | 1256 | al->filtered |= (1 << HIST_FILTER__GUEST); |
a1645ce1 ZY |
1257 | if ((cpumode == PERF_RECORD_MISC_USER || |
1258 | cpumode == PERF_RECORD_MISC_KERNEL) && | |
1259 | !perf_host) | |
b3cef7f6 | 1260 | al->filtered |= (1 << HIST_FILTER__HOST); |
a1645ce1 | 1261 | |
1ed091c4 ACM |
1262 | return; |
1263 | } | |
1264 | try_again: | |
9958e1f0 | 1265 | al->map = map_groups__find(mg, type, al->addr); |
1ed091c4 ACM |
1266 | if (al->map == NULL) { |
1267 | /* | |
1268 | * If this is outside of all known maps, and is a negative | |
1269 | * address, try to look it up in the kernel dso, as it might be | |
1270 | * a vsyscall or vdso (which executes in user-mode). | |
1271 | * | |
1272 | * XXX This is nasty, we should have a symbol list in the | |
1273 | * "[vdso]" dso, but for now lets use the old trick of looking | |
1274 | * in the whole kernel symbol list. | |
1275 | */ | |
fbe2af45 AH |
1276 | if (cpumode == PERF_RECORD_MISC_USER && machine && |
1277 | mg != &machine->kmaps && | |
1278 | machine__kernel_ip(machine, al->addr)) { | |
23346f21 | 1279 | mg = &machine->kmaps; |
1f2a7069 | 1280 | load_map = true; |
1ed091c4 ACM |
1281 | goto try_again; |
1282 | } | |
5b7ba82a AH |
1283 | } else { |
1284 | /* | |
1285 | * Kernel maps might be changed when loading symbols so loading | |
1286 | * must be done prior to using kernel maps. | |
1287 | */ | |
1288 | if (load_map) | |
326f59bf | 1289 | map__load(al->map, machine->symbol_filter); |
1ed091c4 | 1290 | al->addr = al->map->map_ip(al->map, al->addr); |
5b7ba82a | 1291 | } |
59ee68ec ACM |
1292 | } |
1293 | ||
bb871a9c | 1294 | void thread__find_addr_location(struct thread *thread, |
743eb868 | 1295 | u8 cpumode, enum map_type type, u64 addr, |
61710bde | 1296 | struct addr_location *al) |
59ee68ec | 1297 | { |
bb871a9c | 1298 | thread__find_addr_map(thread, cpumode, type, addr, al); |
59ee68ec | 1299 | if (al->map != NULL) |
61710bde | 1300 | al->sym = map__find_symbol(al->map, al->addr, |
bb871a9c | 1301 | thread->mg->machine->symbol_filter); |
59ee68ec ACM |
1302 | else |
1303 | al->sym = NULL; | |
1ed091c4 ACM |
1304 | } |
1305 | ||
b91fc39f ACM |
1306 | /* |
1307 | * Callers need to drop the reference to al->thread, obtained in | |
1308 | * machine__findnew_thread() | |
1309 | */ | |
bb3eb566 ACM |
1310 | int machine__resolve(struct machine *machine, struct addr_location *al, |
1311 | struct perf_sample *sample) | |
1ed091c4 | 1312 | { |
ef89325f | 1313 | struct thread *thread = machine__findnew_thread(machine, sample->pid, |
13ce34df | 1314 | sample->tid); |
41a37e20 | 1315 | |
1ed091c4 ACM |
1316 | if (thread == NULL) |
1317 | return -1; | |
1318 | ||
b9c5143a | 1319 | dump_printf(" ... thread: %s:%d\n", thread__comm_str(thread), thread->tid); |
1f626bc3 | 1320 | /* |
743eb868 | 1321 | * Have we already created the kernel maps for this machine? |
1f626bc3 ACM |
1322 | * |
1323 | * This should have happened earlier, when we processed the kernel MMAP | |
1324 | * events, but for older perf.data files there was no such thing, so do | |
1325 | * it now. | |
1326 | */ | |
473398a2 | 1327 | if (sample->cpumode == PERF_RECORD_MISC_KERNEL && |
a5e813c6 | 1328 | machine__kernel_map(machine) == NULL) |
743eb868 | 1329 | machine__create_kernel_maps(machine); |
1ed091c4 | 1330 | |
473398a2 | 1331 | thread__find_addr_map(thread, sample->cpumode, MAP__FUNCTION, sample->ip, al); |
1ed091c4 ACM |
1332 | dump_printf(" ...... dso: %s\n", |
1333 | al->map ? al->map->dso->long_name : | |
1334 | al->level == 'H' ? "[hypervisor]" : "<not found>"); | |
466fa764 NK |
1335 | |
1336 | if (thread__is_filtered(thread)) | |
1337 | al->filtered |= (1 << HIST_FILTER__THREAD); | |
1338 | ||
96415e4d | 1339 | al->sym = NULL; |
8d50e5b4 | 1340 | al->cpu = sample->cpu; |
0c4c4deb KL |
1341 | al->socket = -1; |
1342 | ||
1343 | if (al->cpu >= 0) { | |
1344 | struct perf_env *env = machine->env; | |
1345 | ||
1346 | if (env && env->cpu) | |
1347 | al->socket = env->cpu[al->cpu].socket_id; | |
1348 | } | |
96415e4d ACM |
1349 | |
1350 | if (al->map) { | |
cb8f4e9a NK |
1351 | struct dso *dso = al->map->dso; |
1352 | ||
96415e4d | 1353 | if (symbol_conf.dso_list && |
cb8f4e9a NK |
1354 | (!dso || !(strlist__has_entry(symbol_conf.dso_list, |
1355 | dso->short_name) || | |
1356 | (dso->short_name != dso->long_name && | |
1357 | strlist__has_entry(symbol_conf.dso_list, | |
b3cef7f6 NK |
1358 | dso->long_name))))) { |
1359 | al->filtered |= (1 << HIST_FILTER__DSO); | |
b3cef7f6 | 1360 | } |
96415e4d | 1361 | |
e44baa3e AH |
1362 | al->sym = map__find_symbol(al->map, al->addr, |
1363 | machine->symbol_filter); | |
96415e4d | 1364 | } |
c410a338 | 1365 | |
1500b93b FT |
1366 | if (symbol_conf.sym_list && |
1367 | (!al->sym || !strlist__has_entry(symbol_conf.sym_list, | |
b3cef7f6 NK |
1368 | al->sym->name))) { |
1369 | al->filtered |= (1 << HIST_FILTER__SYMBOL); | |
b3cef7f6 | 1370 | } |
c410a338 | 1371 | |
c410a338 | 1372 | return 0; |
1ed091c4 | 1373 | } |
9b0d2d87 | 1374 | |
b91fc39f ACM |
1375 | /* |
1376 | * The preprocess_sample method will return with reference counts for the | |
1377 | * in it, when done using (and perhaps getting ref counts if needing to | |
1378 | * keep a pointer to one of those entries) it must be paired with | |
1379 | * addr_location__put(), so that the refcounts can be decremented. | |
1380 | */ | |
1381 | void addr_location__put(struct addr_location *al) | |
1382 | { | |
1383 | thread__zput(al->thread); | |
1384 | } | |
1385 | ||
9b0d2d87 AH |
1386 | bool is_bts_event(struct perf_event_attr *attr) |
1387 | { | |
1388 | return attr->type == PERF_TYPE_HARDWARE && | |
1389 | (attr->config & PERF_COUNT_HW_BRANCH_INSTRUCTIONS) && | |
1390 | attr->sample_period == 1; | |
1391 | } | |
1392 | ||
1393 | bool sample_addr_correlates_sym(struct perf_event_attr *attr) | |
1394 | { | |
1395 | if (attr->type == PERF_TYPE_SOFTWARE && | |
1396 | (attr->config == PERF_COUNT_SW_PAGE_FAULTS || | |
1397 | attr->config == PERF_COUNT_SW_PAGE_FAULTS_MIN || | |
1398 | attr->config == PERF_COUNT_SW_PAGE_FAULTS_MAJ)) | |
1399 | return true; | |
1400 | ||
1401 | if (is_bts_event(attr)) | |
1402 | return true; | |
1403 | ||
1404 | return false; | |
1405 | } | |
1406 | ||
c2740a87 ACM |
1407 | void thread__resolve(struct thread *thread, struct addr_location *al, |
1408 | struct perf_sample *sample) | |
9b0d2d87 | 1409 | { |
473398a2 | 1410 | thread__find_addr_map(thread, sample->cpumode, MAP__FUNCTION, sample->addr, al); |
9b0d2d87 | 1411 | if (!al->map) |
473398a2 | 1412 | thread__find_addr_map(thread, sample->cpumode, MAP__VARIABLE, |
9b0d2d87 AH |
1413 | sample->addr, al); |
1414 | ||
1415 | al->cpu = sample->cpu; | |
1416 | al->sym = NULL; | |
1417 | ||
1418 | if (al->map) | |
1419 | al->sym = map__find_symbol(al->map, al->addr, NULL); | |
1420 | } |