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Commit | Line | Data |
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234fbbf5 | 1 | #include <linux/types.h> |
2f7db555 | 2 | #include <linux/mman.h> /* To get things like MAP_HUGETLB even on older libc headers */ |
d7e404af | 3 | #include <api/fs/fs.h> |
234fbbf5 ACM |
4 | #include "event.h" |
5 | #include "debug.h" | |
b3cef7f6 | 6 | #include "hist.h" |
f62d3f0f | 7 | #include "machine.h" |
c410a338 | 8 | #include "sort.h" |
234fbbf5 | 9 | #include "string.h" |
c410a338 | 10 | #include "strlist.h" |
62daacb5 | 11 | #include "thread.h" |
7c940c18 | 12 | #include "thread_map.h" |
c506c96b | 13 | #include "symbol/kallsyms.h" |
67424342 JO |
14 | #include "asm/bug.h" |
15 | #include "stat.h" | |
234fbbf5 | 16 | |
8115d60c | 17 | static const char *perf_event__names[] = { |
3cb6d154 FW |
18 | [0] = "TOTAL", |
19 | [PERF_RECORD_MMAP] = "MMAP", | |
5c5e854b | 20 | [PERF_RECORD_MMAP2] = "MMAP2", |
3cb6d154 FW |
21 | [PERF_RECORD_LOST] = "LOST", |
22 | [PERF_RECORD_COMM] = "COMM", | |
23 | [PERF_RECORD_EXIT] = "EXIT", | |
24 | [PERF_RECORD_THROTTLE] = "THROTTLE", | |
25 | [PERF_RECORD_UNTHROTTLE] = "UNTHROTTLE", | |
26 | [PERF_RECORD_FORK] = "FORK", | |
27 | [PERF_RECORD_READ] = "READ", | |
28 | [PERF_RECORD_SAMPLE] = "SAMPLE", | |
4a96f7a0 | 29 | [PERF_RECORD_AUX] = "AUX", |
0ad21f68 | 30 | [PERF_RECORD_ITRACE_START] = "ITRACE_START", |
c4937a91 | 31 | [PERF_RECORD_LOST_SAMPLES] = "LOST_SAMPLES", |
0286039f AH |
32 | [PERF_RECORD_SWITCH] = "SWITCH", |
33 | [PERF_RECORD_SWITCH_CPU_WIDE] = "SWITCH_CPU_WIDE", | |
f3b3614a | 34 | [PERF_RECORD_NAMESPACES] = "NAMESPACES", |
3cb6d154 FW |
35 | [PERF_RECORD_HEADER_ATTR] = "ATTR", |
36 | [PERF_RECORD_HEADER_EVENT_TYPE] = "EVENT_TYPE", | |
37 | [PERF_RECORD_HEADER_TRACING_DATA] = "TRACING_DATA", | |
38 | [PERF_RECORD_HEADER_BUILD_ID] = "BUILD_ID", | |
39 | [PERF_RECORD_FINISHED_ROUND] = "FINISHED_ROUND", | |
3c659eed | 40 | [PERF_RECORD_ID_INDEX] = "ID_INDEX", |
a16ac023 AH |
41 | [PERF_RECORD_AUXTRACE_INFO] = "AUXTRACE_INFO", |
42 | [PERF_RECORD_AUXTRACE] = "AUXTRACE", | |
e9bf54d2 | 43 | [PERF_RECORD_AUXTRACE_ERROR] = "AUXTRACE_ERROR", |
5f3339d2 | 44 | [PERF_RECORD_THREAD_MAP] = "THREAD_MAP", |
6640b6c2 | 45 | [PERF_RECORD_CPU_MAP] = "CPU_MAP", |
374fb9e3 | 46 | [PERF_RECORD_STAT_CONFIG] = "STAT_CONFIG", |
d80518c9 | 47 | [PERF_RECORD_STAT] = "STAT", |
2d8f0f18 | 48 | [PERF_RECORD_STAT_ROUND] = "STAT_ROUND", |
ffe77725 | 49 | [PERF_RECORD_EVENT_UPDATE] = "EVENT_UPDATE", |
46bc29b9 | 50 | [PERF_RECORD_TIME_CONV] = "TIME_CONV", |
c8446b9b ACM |
51 | }; |
52 | ||
f3b3614a HB |
53 | static const char *perf_ns__names[] = { |
54 | [NET_NS_INDEX] = "net", | |
55 | [UTS_NS_INDEX] = "uts", | |
56 | [IPC_NS_INDEX] = "ipc", | |
57 | [PID_NS_INDEX] = "pid", | |
58 | [USER_NS_INDEX] = "user", | |
59 | [MNT_NS_INDEX] = "mnt", | |
60 | [CGROUP_NS_INDEX] = "cgroup", | |
61 | }; | |
62 | ||
8115d60c | 63 | const char *perf_event__name(unsigned int id) |
3835bc00 | 64 | { |
8115d60c | 65 | if (id >= ARRAY_SIZE(perf_event__names)) |
3835bc00 | 66 | return "INVALID"; |
8115d60c | 67 | if (!perf_event__names[id]) |
3835bc00 | 68 | return "UNKNOWN"; |
8115d60c | 69 | return perf_event__names[id]; |
3835bc00 TG |
70 | } |
71 | ||
f3b3614a HB |
72 | static const char *perf_ns__name(unsigned int id) |
73 | { | |
74 | if (id >= ARRAY_SIZE(perf_ns__names)) | |
75 | return "UNKNOWN"; | |
76 | return perf_ns__names[id]; | |
77 | } | |
78 | ||
3ea223ad ACM |
79 | static int perf_tool__process_synth_event(struct perf_tool *tool, |
80 | union perf_event *event, | |
81 | struct machine *machine, | |
82 | perf_event__handler_t process) | |
83 | { | |
84 | struct perf_sample synth_sample = { | |
640c03ce ACM |
85 | .pid = -1, |
86 | .tid = -1, | |
87 | .time = -1, | |
88 | .stream_id = -1, | |
89 | .cpu = -1, | |
90 | .period = 1, | |
3ea223ad ACM |
91 | .cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK, |
92 | }; | |
93 | ||
94 | return process(tool, event, &synth_sample, machine); | |
640c03ce ACM |
95 | }; |
96 | ||
5aa0b030 DA |
97 | /* |
98 | * Assumes that the first 4095 bytes of /proc/pid/stat contains | |
ca6c41c5 | 99 | * the comm, tgid and ppid. |
5aa0b030 | 100 | */ |
ca6c41c5 DA |
101 | static int perf_event__get_comm_ids(pid_t pid, char *comm, size_t len, |
102 | pid_t *tgid, pid_t *ppid) | |
234fbbf5 | 103 | { |
234fbbf5 | 104 | char filename[PATH_MAX]; |
5aa0b030 DA |
105 | char bf[4096]; |
106 | int fd; | |
38349665 AH |
107 | size_t size = 0; |
108 | ssize_t n; | |
ca6c41c5 DA |
109 | char *nl, *name, *tgids, *ppids; |
110 | ||
111 | *tgid = -1; | |
112 | *ppid = -1; | |
234fbbf5 ACM |
113 | |
114 | snprintf(filename, sizeof(filename), "/proc/%d/status", pid); | |
115 | ||
5aa0b030 DA |
116 | fd = open(filename, O_RDONLY); |
117 | if (fd < 0) { | |
234fbbf5 | 118 | pr_debug("couldn't open %s\n", filename); |
ca6c41c5 | 119 | return -1; |
234fbbf5 ACM |
120 | } |
121 | ||
5aa0b030 DA |
122 | n = read(fd, bf, sizeof(bf) - 1); |
123 | close(fd); | |
124 | if (n <= 0) { | |
ca6c41c5 | 125 | pr_warning("Couldn't get COMM, tigd and ppid for pid %d\n", |
5aa0b030 DA |
126 | pid); |
127 | return -1; | |
234fbbf5 | 128 | } |
5aa0b030 | 129 | bf[n] = '\0'; |
234fbbf5 | 130 | |
5aa0b030 DA |
131 | name = strstr(bf, "Name:"); |
132 | tgids = strstr(bf, "Tgid:"); | |
ca6c41c5 | 133 | ppids = strstr(bf, "PPid:"); |
5aa0b030 DA |
134 | |
135 | if (name) { | |
136 | name += 5; /* strlen("Name:") */ | |
137 | ||
138 | while (*name && isspace(*name)) | |
139 | ++name; | |
140 | ||
141 | nl = strchr(name, '\n'); | |
142 | if (nl) | |
143 | *nl = '\0'; | |
144 | ||
145 | size = strlen(name); | |
146 | if (size >= len) | |
147 | size = len - 1; | |
148 | memcpy(comm, name, size); | |
149 | comm[size] = '\0'; | |
150 | } else { | |
151 | pr_debug("Name: string not found for pid %d\n", pid); | |
152 | } | |
153 | ||
154 | if (tgids) { | |
155 | tgids += 5; /* strlen("Tgid:") */ | |
ca6c41c5 | 156 | *tgid = atoi(tgids); |
5aa0b030 DA |
157 | } else { |
158 | pr_debug("Tgid: string not found for pid %d\n", pid); | |
159 | } | |
f5faf726 | 160 | |
ca6c41c5 DA |
161 | if (ppids) { |
162 | ppids += 5; /* strlen("PPid:") */ | |
163 | *ppid = atoi(ppids); | |
164 | } else { | |
165 | pr_debug("PPid: string not found for pid %d\n", pid); | |
166 | } | |
167 | ||
168 | return 0; | |
f5faf726 DA |
169 | } |
170 | ||
ca6c41c5 DA |
171 | static int perf_event__prepare_comm(union perf_event *event, pid_t pid, |
172 | struct machine *machine, | |
173 | pid_t *tgid, pid_t *ppid) | |
f5faf726 | 174 | { |
f5faf726 | 175 | size_t size; |
ca6c41c5 DA |
176 | |
177 | *ppid = -1; | |
f5faf726 DA |
178 | |
179 | memset(&event->comm, 0, sizeof(event->comm)); | |
180 | ||
ca6c41c5 DA |
181 | if (machine__is_host(machine)) { |
182 | if (perf_event__get_comm_ids(pid, event->comm.comm, | |
183 | sizeof(event->comm.comm), | |
184 | tgid, ppid) != 0) { | |
185 | return -1; | |
186 | } | |
187 | } else { | |
188 | *tgid = machine->pid; | |
189 | } | |
f5db57c4 | 190 | |
ca6c41c5 DA |
191 | if (*tgid < 0) |
192 | return -1; | |
f5faf726 | 193 | |
ca6c41c5 | 194 | event->comm.pid = *tgid; |
9c90a61c | 195 | event->comm.header.type = PERF_RECORD_COMM; |
f5faf726 DA |
196 | |
197 | size = strlen(event->comm.comm) + 1; | |
9ac3e487 | 198 | size = PERF_ALIGN(size, sizeof(u64)); |
743eb868 | 199 | memset(event->comm.comm + size, 0, machine->id_hdr_size); |
9c90a61c ACM |
200 | event->comm.header.size = (sizeof(event->comm) - |
201 | (sizeof(event->comm.comm) - size) + | |
743eb868 | 202 | machine->id_hdr_size); |
bfd66cc7 | 203 | event->comm.tid = pid; |
ca6c41c5 DA |
204 | |
205 | return 0; | |
4aa5f4f7 ACM |
206 | } |
207 | ||
e803cf97 | 208 | pid_t perf_event__synthesize_comm(struct perf_tool *tool, |
4aa5f4f7 ACM |
209 | union perf_event *event, pid_t pid, |
210 | perf_event__handler_t process, | |
211 | struct machine *machine) | |
212 | { | |
ca6c41c5 | 213 | pid_t tgid, ppid; |
4aa5f4f7 | 214 | |
ca6c41c5 DA |
215 | if (perf_event__prepare_comm(event, pid, machine, &tgid, &ppid) != 0) |
216 | return -1; | |
f5faf726 | 217 | |
3ea223ad | 218 | if (perf_tool__process_synth_event(tool, event, machine, process) != 0) |
bfd66cc7 | 219 | return -1; |
234fbbf5 | 220 | |
9c90a61c | 221 | return tgid; |
234fbbf5 ACM |
222 | } |
223 | ||
e907caf3 HB |
224 | static void perf_event__get_ns_link_info(pid_t pid, const char *ns, |
225 | struct perf_ns_link_info *ns_link_info) | |
226 | { | |
227 | struct stat64 st; | |
228 | char proc_ns[128]; | |
229 | ||
230 | sprintf(proc_ns, "/proc/%u/ns/%s", pid, ns); | |
231 | if (stat64(proc_ns, &st) == 0) { | |
232 | ns_link_info->dev = st.st_dev; | |
233 | ns_link_info->ino = st.st_ino; | |
234 | } | |
235 | } | |
236 | ||
237 | int perf_event__synthesize_namespaces(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) | |
242 | { | |
243 | u32 idx; | |
244 | struct perf_ns_link_info *ns_link_info; | |
245 | ||
246 | if (!tool || !tool->namespace_events) | |
247 | return 0; | |
248 | ||
249 | memset(&event->namespaces, 0, (sizeof(event->namespaces) + | |
250 | (NR_NAMESPACES * sizeof(struct perf_ns_link_info)) + | |
251 | machine->id_hdr_size)); | |
252 | ||
253 | event->namespaces.pid = tgid; | |
254 | event->namespaces.tid = pid; | |
255 | ||
256 | event->namespaces.nr_namespaces = NR_NAMESPACES; | |
257 | ||
258 | ns_link_info = event->namespaces.link_info; | |
259 | ||
260 | for (idx = 0; idx < event->namespaces.nr_namespaces; idx++) | |
261 | perf_event__get_ns_link_info(pid, perf_ns__name(idx), | |
262 | &ns_link_info[idx]); | |
263 | ||
264 | event->namespaces.header.type = PERF_RECORD_NAMESPACES; | |
265 | ||
266 | event->namespaces.header.size = (sizeof(event->namespaces) + | |
267 | (NR_NAMESPACES * sizeof(struct perf_ns_link_info)) + | |
268 | machine->id_hdr_size); | |
269 | ||
270 | if (perf_tool__process_synth_event(tool, event, machine, process) != 0) | |
271 | return -1; | |
272 | ||
273 | return 0; | |
274 | } | |
275 | ||
363b785f | 276 | static int perf_event__synthesize_fork(struct perf_tool *tool, |
ca6c41c5 DA |
277 | union perf_event *event, |
278 | pid_t pid, pid_t tgid, pid_t ppid, | |
279 | perf_event__handler_t process, | |
363b785f DZ |
280 | struct machine *machine) |
281 | { | |
282 | memset(&event->fork, 0, sizeof(event->fork) + machine->id_hdr_size); | |
283 | ||
7764a385 DA |
284 | /* |
285 | * for main thread set parent to ppid from status file. For other | |
286 | * threads set parent pid to main thread. ie., assume main thread | |
287 | * spawns all threads in a process | |
288 | */ | |
289 | if (tgid == pid) { | |
290 | event->fork.ppid = ppid; | |
291 | event->fork.ptid = ppid; | |
292 | } else { | |
293 | event->fork.ppid = tgid; | |
294 | event->fork.ptid = tgid; | |
295 | } | |
363b785f DZ |
296 | event->fork.pid = tgid; |
297 | event->fork.tid = pid; | |
298 | event->fork.header.type = PERF_RECORD_FORK; | |
299 | ||
300 | event->fork.header.size = (sizeof(event->fork) + machine->id_hdr_size); | |
301 | ||
3ea223ad | 302 | if (perf_tool__process_synth_event(tool, event, machine, process) != 0) |
363b785f DZ |
303 | return -1; |
304 | ||
305 | return 0; | |
306 | } | |
307 | ||
a18382b6 JO |
308 | int perf_event__synthesize_mmap_events(struct perf_tool *tool, |
309 | union perf_event *event, | |
310 | pid_t pid, pid_t tgid, | |
311 | perf_event__handler_t process, | |
312 | struct machine *machine, | |
9d9cad76 KL |
313 | bool mmap_data, |
314 | unsigned int proc_map_timeout) | |
234fbbf5 ACM |
315 | { |
316 | char filename[PATH_MAX]; | |
317 | FILE *fp; | |
930e6fcd KL |
318 | unsigned long long t; |
319 | bool truncation = false; | |
9d9cad76 | 320 | unsigned long long timeout = proc_map_timeout * 1000000ULL; |
1e6d5322 | 321 | int rc = 0; |
d7e404af WN |
322 | const char *hugetlbfs_mnt = hugetlbfs__mountpoint(); |
323 | int hugetlbfs_mnt_len = hugetlbfs_mnt ? strlen(hugetlbfs_mnt) : 0; | |
234fbbf5 | 324 | |
c239c25a DY |
325 | if (machine__is_default_guest(machine)) |
326 | return 0; | |
327 | ||
88b897a3 SE |
328 | snprintf(filename, sizeof(filename), "%s/proc/%d/task/%d/maps", |
329 | machine->root_dir, pid, pid); | |
234fbbf5 ACM |
330 | |
331 | fp = fopen(filename, "r"); | |
332 | if (fp == NULL) { | |
333 | /* | |
334 | * We raced with a task exiting - just return: | |
335 | */ | |
336 | pr_debug("couldn't open %s\n", filename); | |
337 | return -1; | |
338 | } | |
339 | ||
a5a5ba72 | 340 | event->header.type = PERF_RECORD_MMAP2; |
930e6fcd | 341 | t = rdclock(); |
9c90a61c | 342 | |
234fbbf5 | 343 | while (1) { |
60648033 NK |
344 | char bf[BUFSIZ]; |
345 | char prot[5]; | |
346 | char execname[PATH_MAX]; | |
347 | char anonstr[] = "//anon"; | |
a5a5ba72 | 348 | unsigned int ino; |
234fbbf5 | 349 | size_t size; |
5c5e854b | 350 | ssize_t n; |
60648033 | 351 | |
234fbbf5 ACM |
352 | if (fgets(bf, sizeof(bf), fp) == NULL) |
353 | break; | |
354 | ||
9d9cad76 KL |
355 | if ((rdclock() - t) > timeout) { |
356 | pr_warning("Reading %s time out. " | |
357 | "You may want to increase " | |
358 | "the time limit by --proc-map-timeout\n", | |
359 | filename); | |
930e6fcd KL |
360 | truncation = true; |
361 | goto out; | |
362 | } | |
363 | ||
60648033 NK |
364 | /* ensure null termination since stack will be reused. */ |
365 | strcpy(execname, ""); | |
366 | ||
234fbbf5 | 367 | /* 00400000-0040c000 r-xp 00000000 fd:01 41038 /bin/cat */ |
89fee59b | 368 | n = sscanf(bf, "%"PRIx64"-%"PRIx64" %s %"PRIx64" %x:%x %u %[^\n]\n", |
a5a5ba72 DZ |
369 | &event->mmap2.start, &event->mmap2.len, prot, |
370 | &event->mmap2.pgoff, &event->mmap2.maj, | |
371 | &event->mmap2.min, | |
372 | &ino, execname); | |
373 | ||
9d4ecc88 DZ |
374 | /* |
375 | * Anon maps don't have the execname. | |
376 | */ | |
a5a5ba72 | 377 | if (n < 7) |
5c5e854b | 378 | continue; |
a5a5ba72 DZ |
379 | |
380 | event->mmap2.ino = (u64)ino; | |
381 | ||
62605dc5 ACM |
382 | /* |
383 | * Just like the kernel, see __perf_event_mmap in kernel/perf_event.c | |
384 | */ | |
73547aac DY |
385 | if (machine__is_host(machine)) |
386 | event->header.misc = PERF_RECORD_MISC_USER; | |
387 | else | |
388 | event->header.misc = PERF_RECORD_MISC_GUEST_USER; | |
60648033 | 389 | |
7ef80703 DZ |
390 | /* map protection and flags bits */ |
391 | event->mmap2.prot = 0; | |
392 | event->mmap2.flags = 0; | |
393 | if (prot[0] == 'r') | |
394 | event->mmap2.prot |= PROT_READ; | |
395 | if (prot[1] == 'w') | |
396 | event->mmap2.prot |= PROT_WRITE; | |
397 | if (prot[2] == 'x') | |
398 | event->mmap2.prot |= PROT_EXEC; | |
399 | ||
400 | if (prot[3] == 's') | |
401 | event->mmap2.flags |= MAP_SHARED; | |
402 | else | |
403 | event->mmap2.flags |= MAP_PRIVATE; | |
404 | ||
62605dc5 ACM |
405 | if (prot[2] != 'x') { |
406 | if (!mmap_data || prot[0] != 'r') | |
407 | continue; | |
408 | ||
409 | event->header.misc |= PERF_RECORD_MISC_MMAP_DATA; | |
410 | } | |
60648033 | 411 | |
930e6fcd KL |
412 | out: |
413 | if (truncation) | |
414 | event->header.misc |= PERF_RECORD_MISC_PROC_MAP_PARSE_TIMEOUT; | |
415 | ||
60648033 NK |
416 | if (!strcmp(execname, "")) |
417 | strcpy(execname, anonstr); | |
fbef103f | 418 | |
973186ca AH |
419 | if (hugetlbfs_mnt_len && |
420 | !strncmp(execname, hugetlbfs_mnt, hugetlbfs_mnt_len)) { | |
d7e404af WN |
421 | strcpy(execname, anonstr); |
422 | event->mmap2.flags |= MAP_HUGETLB; | |
423 | } | |
60648033 NK |
424 | |
425 | size = strlen(execname) + 1; | |
a5a5ba72 | 426 | memcpy(event->mmap2.filename, execname, size); |
60648033 | 427 | size = PERF_ALIGN(size, sizeof(u64)); |
a5a5ba72 DZ |
428 | event->mmap2.len -= event->mmap.start; |
429 | event->mmap2.header.size = (sizeof(event->mmap2) - | |
430 | (sizeof(event->mmap2.filename) - size)); | |
431 | memset(event->mmap2.filename + size, 0, machine->id_hdr_size); | |
432 | event->mmap2.header.size += machine->id_hdr_size; | |
433 | event->mmap2.pid = tgid; | |
434 | event->mmap2.tid = pid; | |
60648033 | 435 | |
3ea223ad | 436 | if (perf_tool__process_synth_event(tool, event, machine, process) != 0) { |
60648033 NK |
437 | rc = -1; |
438 | break; | |
234fbbf5 | 439 | } |
930e6fcd KL |
440 | |
441 | if (truncation) | |
442 | break; | |
234fbbf5 ACM |
443 | } |
444 | ||
445 | fclose(fp); | |
1e6d5322 | 446 | return rc; |
234fbbf5 ACM |
447 | } |
448 | ||
45694aa7 | 449 | int perf_event__synthesize_modules(struct perf_tool *tool, |
d20deb64 | 450 | perf_event__handler_t process, |
8115d60c | 451 | struct machine *machine) |
b7cece76 | 452 | { |
1e6d5322 | 453 | int rc = 0; |
4bb7123d | 454 | struct map *pos; |
23346f21 | 455 | struct map_groups *kmaps = &machine->kmaps; |
1eee78ae | 456 | struct maps *maps = &kmaps->maps[MAP__FUNCTION]; |
8115d60c | 457 | union perf_event *event = zalloc((sizeof(event->mmap) + |
743eb868 | 458 | machine->id_hdr_size)); |
9c90a61c ACM |
459 | if (event == NULL) { |
460 | pr_debug("Not enough memory synthesizing mmap event " | |
461 | "for kernel modules\n"); | |
462 | return -1; | |
463 | } | |
464 | ||
465 | event->header.type = PERF_RECORD_MMAP; | |
b7cece76 | 466 | |
a1645ce1 ZY |
467 | /* |
468 | * kernel uses 0 for user space maps, see kernel/perf_event.c | |
469 | * __perf_event_mmap | |
470 | */ | |
23346f21 | 471 | if (machine__is_host(machine)) |
9c90a61c | 472 | event->header.misc = PERF_RECORD_MISC_KERNEL; |
a1645ce1 | 473 | else |
9c90a61c | 474 | event->header.misc = PERF_RECORD_MISC_GUEST_KERNEL; |
a1645ce1 | 475 | |
4bb7123d | 476 | for (pos = maps__first(maps); pos; pos = map__next(pos)) { |
b7cece76 | 477 | size_t size; |
b7cece76 | 478 | |
ab9c2bdc | 479 | if (__map__is_kernel(pos)) |
b7cece76 ACM |
480 | continue; |
481 | ||
9ac3e487 | 482 | size = PERF_ALIGN(pos->dso->long_name_len + 1, sizeof(u64)); |
9c90a61c ACM |
483 | event->mmap.header.type = PERF_RECORD_MMAP; |
484 | event->mmap.header.size = (sizeof(event->mmap) - | |
485 | (sizeof(event->mmap.filename) - size)); | |
743eb868 ACM |
486 | memset(event->mmap.filename + size, 0, machine->id_hdr_size); |
487 | event->mmap.header.size += machine->id_hdr_size; | |
9c90a61c ACM |
488 | event->mmap.start = pos->start; |
489 | event->mmap.len = pos->end - pos->start; | |
490 | event->mmap.pid = machine->pid; | |
491 | ||
492 | memcpy(event->mmap.filename, pos->dso->long_name, | |
b7cece76 | 493 | pos->dso->long_name_len + 1); |
3ea223ad | 494 | if (perf_tool__process_synth_event(tool, event, machine, process) != 0) { |
1e6d5322 DA |
495 | rc = -1; |
496 | break; | |
497 | } | |
b7cece76 ACM |
498 | } |
499 | ||
9c90a61c | 500 | free(event); |
1e6d5322 | 501 | return rc; |
b7cece76 ACM |
502 | } |
503 | ||
8115d60c ACM |
504 | static int __event__synthesize_thread(union perf_event *comm_event, |
505 | union perf_event *mmap_event, | |
363b785f | 506 | union perf_event *fork_event, |
e907caf3 | 507 | union perf_event *namespaces_event, |
defd8d38 | 508 | pid_t pid, int full, |
e907caf3 | 509 | perf_event__handler_t process, |
45694aa7 | 510 | struct perf_tool *tool, |
9d9cad76 KL |
511 | struct machine *machine, |
512 | bool mmap_data, | |
513 | unsigned int proc_map_timeout) | |
234fbbf5 | 514 | { |
bfd66cc7 DZ |
515 | char filename[PATH_MAX]; |
516 | DIR *tasks; | |
7093b4c9 | 517 | struct dirent *dirent; |
ca6c41c5 | 518 | pid_t tgid, ppid; |
d998b732 | 519 | int rc = 0; |
bfd66cc7 DZ |
520 | |
521 | /* special case: only send one comm event using passed in pid */ | |
522 | if (!full) { | |
523 | tgid = perf_event__synthesize_comm(tool, comm_event, pid, | |
524 | process, machine); | |
525 | ||
526 | if (tgid == -1) | |
527 | return -1; | |
528 | ||
e907caf3 HB |
529 | if (perf_event__synthesize_namespaces(tool, namespaces_event, pid, |
530 | tgid, process, machine) < 0) | |
531 | return -1; | |
532 | ||
533 | ||
bfd66cc7 | 534 | return perf_event__synthesize_mmap_events(tool, mmap_event, pid, tgid, |
9d9cad76 KL |
535 | process, machine, mmap_data, |
536 | proc_map_timeout); | |
bfd66cc7 DZ |
537 | } |
538 | ||
539 | if (machine__is_default_guest(machine)) | |
540 | return 0; | |
541 | ||
542 | snprintf(filename, sizeof(filename), "%s/proc/%d/task", | |
543 | machine->root_dir, pid); | |
544 | ||
545 | tasks = opendir(filename); | |
546 | if (tasks == NULL) { | |
547 | pr_debug("couldn't open %s\n", filename); | |
548 | return 0; | |
549 | } | |
550 | ||
7093b4c9 | 551 | while ((dirent = readdir(tasks)) != NULL) { |
bfd66cc7 | 552 | char *end; |
bfd66cc7 DZ |
553 | pid_t _pid; |
554 | ||
7093b4c9 | 555 | _pid = strtol(dirent->d_name, &end, 10); |
bfd66cc7 DZ |
556 | if (*end) |
557 | continue; | |
558 | ||
d998b732 | 559 | rc = -1; |
ca6c41c5 DA |
560 | if (perf_event__prepare_comm(comm_event, _pid, machine, |
561 | &tgid, &ppid) != 0) | |
d998b732 | 562 | break; |
bfd66cc7 | 563 | |
4aa5f4f7 | 564 | if (perf_event__synthesize_fork(tool, fork_event, _pid, tgid, |
ca6c41c5 | 565 | ppid, process, machine) < 0) |
d998b732 | 566 | break; |
e907caf3 HB |
567 | |
568 | if (perf_event__synthesize_namespaces(tool, namespaces_event, _pid, | |
569 | tgid, process, machine) < 0) | |
570 | break; | |
571 | ||
4aa5f4f7 ACM |
572 | /* |
573 | * Send the prepared comm event | |
574 | */ | |
3ea223ad | 575 | if (perf_tool__process_synth_event(tool, comm_event, machine, process) != 0) |
d998b732 | 576 | break; |
4aa5f4f7 | 577 | |
d998b732 | 578 | rc = 0; |
363b785f DZ |
579 | if (_pid == pid) { |
580 | /* process the parent's maps too */ | |
581 | rc = perf_event__synthesize_mmap_events(tool, mmap_event, pid, tgid, | |
9d9cad76 | 582 | process, machine, mmap_data, proc_map_timeout); |
d998b732 ACM |
583 | if (rc) |
584 | break; | |
363b785f | 585 | } |
bfd66cc7 DZ |
586 | } |
587 | ||
588 | closedir(tasks); | |
d998b732 | 589 | return rc; |
234fbbf5 ACM |
590 | } |
591 | ||
45694aa7 | 592 | int perf_event__synthesize_thread_map(struct perf_tool *tool, |
d20deb64 | 593 | struct thread_map *threads, |
7c940c18 | 594 | perf_event__handler_t process, |
62605dc5 | 595 | struct machine *machine, |
9d9cad76 KL |
596 | bool mmap_data, |
597 | unsigned int proc_map_timeout) | |
9c90a61c | 598 | { |
363b785f | 599 | union perf_event *comm_event, *mmap_event, *fork_event; |
e907caf3 | 600 | union perf_event *namespaces_event; |
defd8d38 | 601 | int err = -1, thread, j; |
9c90a61c | 602 | |
743eb868 | 603 | comm_event = malloc(sizeof(comm_event->comm) + machine->id_hdr_size); |
9c90a61c ACM |
604 | if (comm_event == NULL) |
605 | goto out; | |
606 | ||
b0fb978e | 607 | mmap_event = malloc(sizeof(mmap_event->mmap2) + machine->id_hdr_size); |
9c90a61c ACM |
608 | if (mmap_event == NULL) |
609 | goto out_free_comm; | |
610 | ||
363b785f DZ |
611 | fork_event = malloc(sizeof(fork_event->fork) + machine->id_hdr_size); |
612 | if (fork_event == NULL) | |
613 | goto out_free_mmap; | |
614 | ||
e907caf3 HB |
615 | namespaces_event = malloc(sizeof(namespaces_event->namespaces) + |
616 | (NR_NAMESPACES * sizeof(struct perf_ns_link_info)) + | |
617 | machine->id_hdr_size); | |
618 | if (namespaces_event == NULL) | |
619 | goto out_free_fork; | |
620 | ||
401b8e13 ACM |
621 | err = 0; |
622 | for (thread = 0; thread < threads->nr; ++thread) { | |
623 | if (__event__synthesize_thread(comm_event, mmap_event, | |
e907caf3 | 624 | fork_event, namespaces_event, |
e13798c7 | 625 | thread_map__pid(threads, thread), 0, |
62605dc5 | 626 | process, tool, machine, |
9d9cad76 | 627 | mmap_data, proc_map_timeout)) { |
401b8e13 ACM |
628 | err = -1; |
629 | break; | |
630 | } | |
defd8d38 DA |
631 | |
632 | /* | |
633 | * comm.pid is set to thread group id by | |
634 | * perf_event__synthesize_comm | |
635 | */ | |
e13798c7 | 636 | if ((int) comm_event->comm.pid != thread_map__pid(threads, thread)) { |
defd8d38 DA |
637 | bool need_leader = true; |
638 | ||
639 | /* is thread group leader in thread_map? */ | |
640 | for (j = 0; j < threads->nr; ++j) { | |
e13798c7 | 641 | if ((int) comm_event->comm.pid == thread_map__pid(threads, j)) { |
defd8d38 DA |
642 | need_leader = false; |
643 | break; | |
644 | } | |
645 | } | |
646 | ||
647 | /* if not, generate events for it */ | |
648 | if (need_leader && | |
62605dc5 | 649 | __event__synthesize_thread(comm_event, mmap_event, |
e907caf3 | 650 | fork_event, namespaces_event, |
62605dc5 ACM |
651 | comm_event->comm.pid, 0, |
652 | process, tool, machine, | |
9d9cad76 | 653 | mmap_data, proc_map_timeout)) { |
defd8d38 DA |
654 | err = -1; |
655 | break; | |
656 | } | |
657 | } | |
401b8e13 | 658 | } |
e907caf3 HB |
659 | free(namespaces_event); |
660 | out_free_fork: | |
363b785f DZ |
661 | free(fork_event); |
662 | out_free_mmap: | |
9c90a61c ACM |
663 | free(mmap_event); |
664 | out_free_comm: | |
665 | free(comm_event); | |
666 | out: | |
667 | return err; | |
668 | } | |
669 | ||
45694aa7 | 670 | int perf_event__synthesize_threads(struct perf_tool *tool, |
d20deb64 | 671 | perf_event__handler_t process, |
9d9cad76 KL |
672 | struct machine *machine, |
673 | bool mmap_data, | |
674 | unsigned int proc_map_timeout) | |
234fbbf5 ACM |
675 | { |
676 | DIR *proc; | |
99563465 | 677 | char proc_path[PATH_MAX]; |
7093b4c9 | 678 | struct dirent *dirent; |
363b785f | 679 | union perf_event *comm_event, *mmap_event, *fork_event; |
e907caf3 | 680 | union perf_event *namespaces_event; |
9c90a61c ACM |
681 | int err = -1; |
682 | ||
574799bf NK |
683 | if (machine__is_default_guest(machine)) |
684 | return 0; | |
685 | ||
743eb868 | 686 | comm_event = malloc(sizeof(comm_event->comm) + machine->id_hdr_size); |
9c90a61c ACM |
687 | if (comm_event == NULL) |
688 | goto out; | |
689 | ||
b0fb978e | 690 | mmap_event = malloc(sizeof(mmap_event->mmap2) + machine->id_hdr_size); |
9c90a61c ACM |
691 | if (mmap_event == NULL) |
692 | goto out_free_comm; | |
234fbbf5 | 693 | |
363b785f DZ |
694 | fork_event = malloc(sizeof(fork_event->fork) + machine->id_hdr_size); |
695 | if (fork_event == NULL) | |
696 | goto out_free_mmap; | |
697 | ||
e907caf3 HB |
698 | namespaces_event = malloc(sizeof(namespaces_event->namespaces) + |
699 | (NR_NAMESPACES * sizeof(struct perf_ns_link_info)) + | |
700 | machine->id_hdr_size); | |
701 | if (namespaces_event == NULL) | |
702 | goto out_free_fork; | |
703 | ||
99563465 DY |
704 | snprintf(proc_path, sizeof(proc_path), "%s/proc", machine->root_dir); |
705 | proc = opendir(proc_path); | |
706 | ||
9c90a61c | 707 | if (proc == NULL) |
e907caf3 | 708 | goto out_free_namespaces; |
234fbbf5 | 709 | |
7093b4c9 | 710 | while ((dirent = readdir(proc)) != NULL) { |
234fbbf5 | 711 | char *end; |
7093b4c9 | 712 | pid_t pid = strtol(dirent->d_name, &end, 10); |
234fbbf5 ACM |
713 | |
714 | if (*end) /* only interested in proper numerical dirents */ | |
715 | continue; | |
ba361c92 ACM |
716 | /* |
717 | * We may race with exiting thread, so don't stop just because | |
718 | * one thread couldn't be synthesized. | |
719 | */ | |
e907caf3 HB |
720 | __event__synthesize_thread(comm_event, mmap_event, fork_event, |
721 | namespaces_event, pid, 1, process, | |
722 | tool, machine, mmap_data, | |
9d9cad76 | 723 | proc_map_timeout); |
234fbbf5 ACM |
724 | } |
725 | ||
9c90a61c | 726 | err = 0; |
1e6d5322 | 727 | closedir(proc); |
e907caf3 HB |
728 | out_free_namespaces: |
729 | free(namespaces_event); | |
363b785f DZ |
730 | out_free_fork: |
731 | free(fork_event); | |
9c90a61c ACM |
732 | out_free_mmap: |
733 | free(mmap_event); | |
734 | out_free_comm: | |
735 | free(comm_event); | |
736 | out: | |
737 | return err; | |
234fbbf5 | 738 | } |
62daacb5 | 739 | |
56b03f3c ACM |
740 | struct process_symbol_args { |
741 | const char *name; | |
742 | u64 start; | |
743 | }; | |
744 | ||
3b01a413 | 745 | static int find_symbol_cb(void *arg, const char *name, char type, |
82151520 | 746 | u64 start) |
56b03f3c ACM |
747 | { |
748 | struct process_symbol_args *args = arg; | |
749 | ||
881516eb ACM |
750 | /* |
751 | * Must be a function or at least an alias, as in PARISC64, where "_text" is | |
752 | * an 'A' to the same address as "_stext". | |
753 | */ | |
754 | if (!(symbol_type__is_a(type, MAP__FUNCTION) || | |
755 | type == 'A') || strcmp(name, args->name)) | |
56b03f3c ACM |
756 | return 0; |
757 | ||
758 | args->start = start; | |
759 | return 1; | |
760 | } | |
761 | ||
29b596b5 AH |
762 | u64 kallsyms__get_function_start(const char *kallsyms_filename, |
763 | const char *symbol_name) | |
764 | { | |
765 | struct process_symbol_args args = { .name = symbol_name, }; | |
766 | ||
767 | if (kallsyms__parse(kallsyms_filename, &args, find_symbol_cb) <= 0) | |
768 | return 0; | |
769 | ||
770 | return args.start; | |
771 | } | |
772 | ||
45694aa7 | 773 | int perf_event__synthesize_kernel_mmap(struct perf_tool *tool, |
d20deb64 | 774 | perf_event__handler_t process, |
0ae617be | 775 | struct machine *machine) |
56b03f3c ACM |
776 | { |
777 | size_t size; | |
0ae617be | 778 | const char *mmap_name; |
a1645ce1 | 779 | char name_buff[PATH_MAX]; |
a5e813c6 | 780 | struct map *map = machine__kernel_map(machine); |
0ae617be | 781 | struct kmap *kmap; |
9c90a61c | 782 | int err; |
a5c2a4c9 AK |
783 | union perf_event *event; |
784 | ||
3dc6c1d5 WN |
785 | if (symbol_conf.kptr_restrict) |
786 | return -1; | |
77e65977 | 787 | if (map == NULL) |
a5c2a4c9 AK |
788 | return -1; |
789 | ||
56b03f3c ACM |
790 | /* |
791 | * We should get this from /sys/kernel/sections/.text, but till that is | |
792 | * available use this, and after it is use this as a fallback for older | |
793 | * kernels. | |
794 | */ | |
a5c2a4c9 | 795 | event = zalloc((sizeof(event->mmap) + machine->id_hdr_size)); |
9c90a61c ACM |
796 | if (event == NULL) { |
797 | pr_debug("Not enough memory synthesizing mmap event " | |
798 | "for kernel modules\n"); | |
799 | return -1; | |
800 | } | |
56b03f3c | 801 | |
48ea8f54 | 802 | mmap_name = machine__mmap_name(machine, name_buff, sizeof(name_buff)); |
23346f21 | 803 | if (machine__is_host(machine)) { |
a1645ce1 ZY |
804 | /* |
805 | * kernel uses PERF_RECORD_MISC_USER for user space maps, | |
806 | * see kernel/perf_event.c __perf_event_mmap | |
807 | */ | |
9c90a61c | 808 | event->header.misc = PERF_RECORD_MISC_KERNEL; |
a1645ce1 | 809 | } else { |
9c90a61c | 810 | event->header.misc = PERF_RECORD_MISC_GUEST_KERNEL; |
0b9e01a4 | 811 | } |
56b03f3c | 812 | |
0ae617be | 813 | kmap = map__kmap(map); |
9c90a61c | 814 | size = snprintf(event->mmap.filename, sizeof(event->mmap.filename), |
0ae617be | 815 | "%s%s", mmap_name, kmap->ref_reloc_sym->name) + 1; |
9ac3e487 | 816 | size = PERF_ALIGN(size, sizeof(u64)); |
9c90a61c ACM |
817 | event->mmap.header.type = PERF_RECORD_MMAP; |
818 | event->mmap.header.size = (sizeof(event->mmap) - | |
743eb868 | 819 | (sizeof(event->mmap.filename) - size) + machine->id_hdr_size); |
0ae617be | 820 | event->mmap.pgoff = kmap->ref_reloc_sym->addr; |
9c90a61c ACM |
821 | event->mmap.start = map->start; |
822 | event->mmap.len = map->end - event->mmap.start; | |
823 | event->mmap.pid = machine->pid; | |
824 | ||
3ea223ad | 825 | err = perf_tool__process_synth_event(tool, event, machine, process); |
9c90a61c ACM |
826 | free(event); |
827 | ||
828 | return err; | |
56b03f3c ACM |
829 | } |
830 | ||
99471c96 JO |
831 | int perf_event__synthesize_thread_map2(struct perf_tool *tool, |
832 | struct thread_map *threads, | |
833 | perf_event__handler_t process, | |
834 | struct machine *machine) | |
835 | { | |
836 | union perf_event *event; | |
837 | int i, err, size; | |
838 | ||
839 | size = sizeof(event->thread_map); | |
840 | size += threads->nr * sizeof(event->thread_map.entries[0]); | |
841 | ||
842 | event = zalloc(size); | |
843 | if (!event) | |
844 | return -ENOMEM; | |
845 | ||
846 | event->header.type = PERF_RECORD_THREAD_MAP; | |
847 | event->header.size = size; | |
848 | event->thread_map.nr = threads->nr; | |
849 | ||
850 | for (i = 0; i < threads->nr; i++) { | |
851 | struct thread_map_event_entry *entry = &event->thread_map.entries[i]; | |
852 | char *comm = thread_map__comm(threads, i); | |
853 | ||
854 | if (!comm) | |
855 | comm = (char *) ""; | |
856 | ||
857 | entry->pid = thread_map__pid(threads, i); | |
858 | strncpy((char *) &entry->comm, comm, sizeof(entry->comm)); | |
859 | } | |
860 | ||
861 | err = process(tool, event, NULL, machine); | |
862 | ||
863 | free(event); | |
864 | return err; | |
865 | } | |
866 | ||
6c872901 JO |
867 | static void synthesize_cpus(struct cpu_map_entries *cpus, |
868 | struct cpu_map *map) | |
869 | { | |
870 | int i; | |
871 | ||
872 | cpus->nr = map->nr; | |
873 | ||
874 | for (i = 0; i < map->nr; i++) | |
875 | cpus->cpu[i] = map->map[i]; | |
876 | } | |
877 | ||
878 | static void synthesize_mask(struct cpu_map_mask *mask, | |
879 | struct cpu_map *map, int max) | |
880 | { | |
881 | int i; | |
882 | ||
883 | mask->nr = BITS_TO_LONGS(max); | |
884 | mask->long_size = sizeof(long); | |
885 | ||
886 | for (i = 0; i < map->nr; i++) | |
887 | set_bit(map->map[i], mask->mask); | |
888 | } | |
889 | ||
890 | static size_t cpus_size(struct cpu_map *map) | |
891 | { | |
892 | return sizeof(struct cpu_map_entries) + map->nr * sizeof(u16); | |
893 | } | |
894 | ||
895 | static size_t mask_size(struct cpu_map *map, int *max) | |
896 | { | |
897 | int i; | |
898 | ||
899 | *max = 0; | |
900 | ||
901 | for (i = 0; i < map->nr; i++) { | |
902 | /* bit possition of the cpu is + 1 */ | |
903 | int bit = map->map[i] + 1; | |
904 | ||
905 | if (bit > *max) | |
906 | *max = bit; | |
907 | } | |
908 | ||
909 | return sizeof(struct cpu_map_mask) + BITS_TO_LONGS(*max) * sizeof(long); | |
910 | } | |
911 | ||
912 | void *cpu_map_data__alloc(struct cpu_map *map, size_t *size, u16 *type, int *max) | |
913 | { | |
914 | size_t size_cpus, size_mask; | |
915 | bool is_dummy = cpu_map__empty(map); | |
916 | ||
917 | /* | |
918 | * Both array and mask data have variable size based | |
919 | * on the number of cpus and their actual values. | |
920 | * The size of the 'struct cpu_map_data' is: | |
921 | * | |
922 | * array = size of 'struct cpu_map_entries' + | |
923 | * number of cpus * sizeof(u64) | |
924 | * | |
925 | * mask = size of 'struct cpu_map_mask' + | |
926 | * maximum cpu bit converted to size of longs | |
927 | * | |
928 | * and finaly + the size of 'struct cpu_map_data'. | |
929 | */ | |
930 | size_cpus = cpus_size(map); | |
931 | size_mask = mask_size(map, max); | |
932 | ||
933 | if (is_dummy || (size_cpus < size_mask)) { | |
934 | *size += size_cpus; | |
935 | *type = PERF_CPU_MAP__CPUS; | |
936 | } else { | |
937 | *size += size_mask; | |
938 | *type = PERF_CPU_MAP__MASK; | |
939 | } | |
940 | ||
941 | *size += sizeof(struct cpu_map_data); | |
942 | return zalloc(*size); | |
943 | } | |
944 | ||
945 | void cpu_map_data__synthesize(struct cpu_map_data *data, struct cpu_map *map, | |
946 | u16 type, int max) | |
947 | { | |
948 | data->type = type; | |
949 | ||
950 | switch (type) { | |
951 | case PERF_CPU_MAP__CPUS: | |
952 | synthesize_cpus((struct cpu_map_entries *) data->data, map); | |
953 | break; | |
954 | case PERF_CPU_MAP__MASK: | |
955 | synthesize_mask((struct cpu_map_mask *) data->data, map, max); | |
956 | default: | |
957 | break; | |
958 | }; | |
959 | } | |
960 | ||
961 | static struct cpu_map_event* cpu_map_event__new(struct cpu_map *map) | |
962 | { | |
963 | size_t size = sizeof(struct cpu_map_event); | |
964 | struct cpu_map_event *event; | |
965 | int max; | |
966 | u16 type; | |
967 | ||
968 | event = cpu_map_data__alloc(map, &size, &type, &max); | |
969 | if (!event) | |
970 | return NULL; | |
971 | ||
972 | event->header.type = PERF_RECORD_CPU_MAP; | |
973 | event->header.size = size; | |
974 | event->data.type = type; | |
975 | ||
976 | cpu_map_data__synthesize(&event->data, map, type, max); | |
977 | return event; | |
978 | } | |
979 | ||
980 | int perf_event__synthesize_cpu_map(struct perf_tool *tool, | |
981 | struct cpu_map *map, | |
982 | perf_event__handler_t process, | |
983 | struct machine *machine) | |
984 | { | |
985 | struct cpu_map_event *event; | |
986 | int err; | |
987 | ||
988 | event = cpu_map_event__new(map); | |
989 | if (!event) | |
990 | return -ENOMEM; | |
991 | ||
992 | err = process(tool, (union perf_event *) event, NULL, machine); | |
993 | ||
994 | free(event); | |
995 | return err; | |
996 | } | |
997 | ||
67424342 JO |
998 | int perf_event__synthesize_stat_config(struct perf_tool *tool, |
999 | struct perf_stat_config *config, | |
1000 | perf_event__handler_t process, | |
1001 | struct machine *machine) | |
1002 | { | |
1003 | struct stat_config_event *event; | |
1004 | int size, i = 0, err; | |
1005 | ||
1006 | size = sizeof(*event); | |
1007 | size += (PERF_STAT_CONFIG_TERM__MAX * sizeof(event->data[0])); | |
1008 | ||
1009 | event = zalloc(size); | |
1010 | if (!event) | |
1011 | return -ENOMEM; | |
1012 | ||
1013 | event->header.type = PERF_RECORD_STAT_CONFIG; | |
1014 | event->header.size = size; | |
1015 | event->nr = PERF_STAT_CONFIG_TERM__MAX; | |
1016 | ||
1017 | #define ADD(__term, __val) \ | |
1018 | event->data[i].tag = PERF_STAT_CONFIG_TERM__##__term; \ | |
1019 | event->data[i].val = __val; \ | |
1020 | i++; | |
1021 | ||
1022 | ADD(AGGR_MODE, config->aggr_mode) | |
1023 | ADD(INTERVAL, config->interval) | |
1024 | ADD(SCALE, config->scale) | |
1025 | ||
1026 | WARN_ONCE(i != PERF_STAT_CONFIG_TERM__MAX, | |
1027 | "stat config terms unbalanced\n"); | |
1028 | #undef ADD | |
1029 | ||
1030 | err = process(tool, (union perf_event *) event, NULL, machine); | |
1031 | ||
1032 | free(event); | |
1033 | return err; | |
1034 | } | |
1035 | ||
5796f8f0 JO |
1036 | int perf_event__synthesize_stat(struct perf_tool *tool, |
1037 | u32 cpu, u32 thread, u64 id, | |
1038 | struct perf_counts_values *count, | |
1039 | perf_event__handler_t process, | |
1040 | struct machine *machine) | |
1041 | { | |
1042 | struct stat_event event; | |
1043 | ||
1044 | event.header.type = PERF_RECORD_STAT; | |
1045 | event.header.size = sizeof(event); | |
1046 | event.header.misc = 0; | |
1047 | ||
1048 | event.id = id; | |
1049 | event.cpu = cpu; | |
1050 | event.thread = thread; | |
1051 | event.val = count->val; | |
1052 | event.ena = count->ena; | |
1053 | event.run = count->run; | |
1054 | ||
1055 | return process(tool, (union perf_event *) &event, NULL, machine); | |
1056 | } | |
1057 | ||
d4c22591 JO |
1058 | int perf_event__synthesize_stat_round(struct perf_tool *tool, |
1059 | u64 evtime, u64 type, | |
1060 | perf_event__handler_t process, | |
1061 | struct machine *machine) | |
1062 | { | |
1063 | struct stat_round_event event; | |
1064 | ||
1065 | event.header.type = PERF_RECORD_STAT_ROUND; | |
1066 | event.header.size = sizeof(event); | |
1067 | event.header.misc = 0; | |
1068 | ||
1069 | event.time = evtime; | |
1070 | event.type = type; | |
1071 | ||
1072 | return process(tool, (union perf_event *) &event, NULL, machine); | |
1073 | } | |
1074 | ||
8e381596 JO |
1075 | void perf_event__read_stat_config(struct perf_stat_config *config, |
1076 | struct stat_config_event *event) | |
1077 | { | |
1078 | unsigned i; | |
1079 | ||
1080 | for (i = 0; i < event->nr; i++) { | |
1081 | ||
1082 | switch (event->data[i].tag) { | |
1083 | #define CASE(__term, __val) \ | |
1084 | case PERF_STAT_CONFIG_TERM__##__term: \ | |
1085 | config->__val = event->data[i].val; \ | |
1086 | break; | |
1087 | ||
1088 | CASE(AGGR_MODE, aggr_mode) | |
1089 | CASE(SCALE, scale) | |
1090 | CASE(INTERVAL, interval) | |
1091 | #undef CASE | |
1092 | default: | |
1093 | pr_warning("unknown stat config term %" PRIu64 "\n", | |
1094 | event->data[i].tag); | |
1095 | } | |
1096 | } | |
1097 | } | |
1098 | ||
482ad897 ACM |
1099 | size_t perf_event__fprintf_comm(union perf_event *event, FILE *fp) |
1100 | { | |
022c50d0 AH |
1101 | const char *s; |
1102 | ||
1103 | if (event->header.misc & PERF_RECORD_MISC_COMM_EXEC) | |
1104 | s = " exec"; | |
1105 | else | |
1106 | s = ""; | |
1107 | ||
50674065 | 1108 | return fprintf(fp, "%s: %s:%d/%d\n", s, event->comm.comm, event->comm.pid, event->comm.tid); |
482ad897 ACM |
1109 | } |
1110 | ||
f3b3614a HB |
1111 | size_t perf_event__fprintf_namespaces(union perf_event *event, FILE *fp) |
1112 | { | |
1113 | size_t ret = 0; | |
1114 | struct perf_ns_link_info *ns_link_info; | |
1115 | u32 nr_namespaces, idx; | |
1116 | ||
1117 | ns_link_info = event->namespaces.link_info; | |
1118 | nr_namespaces = event->namespaces.nr_namespaces; | |
1119 | ||
1120 | ret += fprintf(fp, " %d/%d - nr_namespaces: %u\n\t\t[", | |
1121 | event->namespaces.pid, | |
1122 | event->namespaces.tid, | |
1123 | nr_namespaces); | |
1124 | ||
1125 | for (idx = 0; idx < nr_namespaces; idx++) { | |
1126 | if (idx && (idx % 4 == 0)) | |
1127 | ret += fprintf(fp, "\n\t\t "); | |
1128 | ||
1129 | ret += fprintf(fp, "%u/%s: %" PRIu64 "/%#" PRIx64 "%s", idx, | |
1130 | perf_ns__name(idx), (u64)ns_link_info[idx].dev, | |
1131 | (u64)ns_link_info[idx].ino, | |
1132 | ((idx + 1) != nr_namespaces) ? ", " : "]\n"); | |
1133 | } | |
1134 | ||
1135 | return ret; | |
1136 | } | |
1137 | ||
1d037ca1 | 1138 | int perf_event__process_comm(struct perf_tool *tool __maybe_unused, |
d20deb64 | 1139 | union perf_event *event, |
162f0bef | 1140 | struct perf_sample *sample, |
743eb868 | 1141 | struct machine *machine) |
62daacb5 | 1142 | { |
162f0bef | 1143 | return machine__process_comm_event(machine, event, sample); |
62daacb5 ACM |
1144 | } |
1145 | ||
f3b3614a HB |
1146 | int perf_event__process_namespaces(struct perf_tool *tool __maybe_unused, |
1147 | union perf_event *event, | |
1148 | struct perf_sample *sample, | |
1149 | struct machine *machine) | |
1150 | { | |
1151 | return machine__process_namespaces_event(machine, event, sample); | |
1152 | } | |
1153 | ||
1d037ca1 | 1154 | int perf_event__process_lost(struct perf_tool *tool __maybe_unused, |
d20deb64 | 1155 | union perf_event *event, |
162f0bef | 1156 | struct perf_sample *sample, |
b0a7d1a0 | 1157 | struct machine *machine) |
62daacb5 | 1158 | { |
162f0bef | 1159 | return machine__process_lost_event(machine, event, sample); |
a1645ce1 | 1160 | } |
b7cece76 | 1161 | |
4a96f7a0 AH |
1162 | int perf_event__process_aux(struct perf_tool *tool __maybe_unused, |
1163 | union perf_event *event, | |
1164 | struct perf_sample *sample __maybe_unused, | |
1165 | struct machine *machine) | |
1166 | { | |
1167 | return machine__process_aux_event(machine, event); | |
1168 | } | |
1169 | ||
0ad21f68 AH |
1170 | int perf_event__process_itrace_start(struct perf_tool *tool __maybe_unused, |
1171 | union perf_event *event, | |
1172 | struct perf_sample *sample __maybe_unused, | |
1173 | struct machine *machine) | |
1174 | { | |
1175 | return machine__process_itrace_start_event(machine, event); | |
1176 | } | |
1177 | ||
c4937a91 KL |
1178 | int perf_event__process_lost_samples(struct perf_tool *tool __maybe_unused, |
1179 | union perf_event *event, | |
1180 | struct perf_sample *sample, | |
1181 | struct machine *machine) | |
1182 | { | |
1183 | return machine__process_lost_samples_event(machine, event, sample); | |
1184 | } | |
1185 | ||
0286039f AH |
1186 | int perf_event__process_switch(struct perf_tool *tool __maybe_unused, |
1187 | union perf_event *event, | |
1188 | struct perf_sample *sample __maybe_unused, | |
1189 | struct machine *machine) | |
1190 | { | |
1191 | return machine__process_switch_event(machine, event); | |
1192 | } | |
1193 | ||
482ad897 ACM |
1194 | size_t perf_event__fprintf_mmap(union perf_event *event, FILE *fp) |
1195 | { | |
62605dc5 | 1196 | return fprintf(fp, " %d/%d: [%#" PRIx64 "(%#" PRIx64 ") @ %#" PRIx64 "]: %c %s\n", |
482ad897 | 1197 | event->mmap.pid, event->mmap.tid, event->mmap.start, |
62605dc5 ACM |
1198 | event->mmap.len, event->mmap.pgoff, |
1199 | (event->header.misc & PERF_RECORD_MISC_MMAP_DATA) ? 'r' : 'x', | |
1200 | event->mmap.filename); | |
482ad897 ACM |
1201 | } |
1202 | ||
5c5e854b SE |
1203 | size_t perf_event__fprintf_mmap2(union perf_event *event, FILE *fp) |
1204 | { | |
1205 | return fprintf(fp, " %d/%d: [%#" PRIx64 "(%#" PRIx64 ") @ %#" PRIx64 | |
7ef80703 | 1206 | " %02x:%02x %"PRIu64" %"PRIu64"]: %c%c%c%c %s\n", |
5c5e854b SE |
1207 | event->mmap2.pid, event->mmap2.tid, event->mmap2.start, |
1208 | event->mmap2.len, event->mmap2.pgoff, event->mmap2.maj, | |
1209 | event->mmap2.min, event->mmap2.ino, | |
1210 | event->mmap2.ino_generation, | |
7ef80703 DZ |
1211 | (event->mmap2.prot & PROT_READ) ? 'r' : '-', |
1212 | (event->mmap2.prot & PROT_WRITE) ? 'w' : '-', | |
1213 | (event->mmap2.prot & PROT_EXEC) ? 'x' : '-', | |
1214 | (event->mmap2.flags & MAP_SHARED) ? 's' : 'p', | |
5c5e854b SE |
1215 | event->mmap2.filename); |
1216 | } | |
1217 | ||
ec7fa596 JO |
1218 | size_t perf_event__fprintf_thread_map(union perf_event *event, FILE *fp) |
1219 | { | |
1220 | struct thread_map *threads = thread_map__new_event(&event->thread_map); | |
1221 | size_t ret; | |
1222 | ||
1223 | ret = fprintf(fp, " nr: "); | |
1224 | ||
1225 | if (threads) | |
1226 | ret += thread_map__fprintf(threads, fp); | |
1227 | else | |
1228 | ret += fprintf(fp, "failed to get threads from event\n"); | |
1229 | ||
1230 | thread_map__put(threads); | |
1231 | return ret; | |
1232 | } | |
1233 | ||
eb12a1af JO |
1234 | size_t perf_event__fprintf_cpu_map(union perf_event *event, FILE *fp) |
1235 | { | |
1236 | struct cpu_map *cpus = cpu_map__new_data(&event->cpu_map.data); | |
1237 | size_t ret; | |
1238 | ||
a24020e6 | 1239 | ret = fprintf(fp, ": "); |
eb12a1af JO |
1240 | |
1241 | if (cpus) | |
1242 | ret += cpu_map__fprintf(cpus, fp); | |
1243 | else | |
1244 | ret += fprintf(fp, "failed to get cpumap from event\n"); | |
1245 | ||
1246 | cpu_map__put(cpus); | |
1247 | return ret; | |
1248 | } | |
1249 | ||
b0a7d1a0 | 1250 | int perf_event__process_mmap(struct perf_tool *tool __maybe_unused, |
d20deb64 | 1251 | union perf_event *event, |
162f0bef | 1252 | struct perf_sample *sample, |
743eb868 | 1253 | struct machine *machine) |
a1645ce1 | 1254 | { |
162f0bef | 1255 | return machine__process_mmap_event(machine, event, sample); |
62daacb5 ACM |
1256 | } |
1257 | ||
5c5e854b SE |
1258 | int perf_event__process_mmap2(struct perf_tool *tool __maybe_unused, |
1259 | union perf_event *event, | |
162f0bef | 1260 | struct perf_sample *sample, |
5c5e854b SE |
1261 | struct machine *machine) |
1262 | { | |
162f0bef | 1263 | return machine__process_mmap2_event(machine, event, sample); |
5c5e854b SE |
1264 | } |
1265 | ||
482ad897 ACM |
1266 | size_t perf_event__fprintf_task(union perf_event *event, FILE *fp) |
1267 | { | |
1268 | return fprintf(fp, "(%d:%d):(%d:%d)\n", | |
1269 | event->fork.pid, event->fork.tid, | |
1270 | event->fork.ppid, event->fork.ptid); | |
1271 | } | |
1272 | ||
f62d3f0f | 1273 | int perf_event__process_fork(struct perf_tool *tool __maybe_unused, |
d20deb64 | 1274 | union perf_event *event, |
162f0bef | 1275 | struct perf_sample *sample, |
f62d3f0f | 1276 | struct machine *machine) |
62daacb5 | 1277 | { |
162f0bef | 1278 | return machine__process_fork_event(machine, event, sample); |
62daacb5 | 1279 | } |
1ed091c4 | 1280 | |
f62d3f0f ACM |
1281 | int perf_event__process_exit(struct perf_tool *tool __maybe_unused, |
1282 | union perf_event *event, | |
162f0bef | 1283 | struct perf_sample *sample, |
f62d3f0f ACM |
1284 | struct machine *machine) |
1285 | { | |
162f0bef | 1286 | return machine__process_exit_event(machine, event, sample); |
f62d3f0f ACM |
1287 | } |
1288 | ||
4a96f7a0 AH |
1289 | size_t perf_event__fprintf_aux(union perf_event *event, FILE *fp) |
1290 | { | |
1291 | return fprintf(fp, " offset: %#"PRIx64" size: %#"PRIx64" flags: %#"PRIx64" [%s%s]\n", | |
1292 | event->aux.aux_offset, event->aux.aux_size, | |
1293 | event->aux.flags, | |
1294 | event->aux.flags & PERF_AUX_FLAG_TRUNCATED ? "T" : "", | |
1295 | event->aux.flags & PERF_AUX_FLAG_OVERWRITE ? "O" : ""); | |
1296 | } | |
1297 | ||
0ad21f68 AH |
1298 | size_t perf_event__fprintf_itrace_start(union perf_event *event, FILE *fp) |
1299 | { | |
1300 | return fprintf(fp, " pid: %u tid: %u\n", | |
1301 | event->itrace_start.pid, event->itrace_start.tid); | |
1302 | } | |
1303 | ||
0286039f AH |
1304 | size_t perf_event__fprintf_switch(union perf_event *event, FILE *fp) |
1305 | { | |
1306 | bool out = event->header.misc & PERF_RECORD_MISC_SWITCH_OUT; | |
1307 | const char *in_out = out ? "OUT" : "IN "; | |
1308 | ||
1309 | if (event->header.type == PERF_RECORD_SWITCH) | |
1310 | return fprintf(fp, " %s\n", in_out); | |
1311 | ||
1312 | return fprintf(fp, " %s %s pid/tid: %5u/%-5u\n", | |
1313 | in_out, out ? "next" : "prev", | |
1314 | event->context_switch.next_prev_pid, | |
1315 | event->context_switch.next_prev_tid); | |
1316 | } | |
1317 | ||
482ad897 ACM |
1318 | size_t perf_event__fprintf(union perf_event *event, FILE *fp) |
1319 | { | |
1320 | size_t ret = fprintf(fp, "PERF_RECORD_%s", | |
1321 | perf_event__name(event->header.type)); | |
1322 | ||
1323 | switch (event->header.type) { | |
1324 | case PERF_RECORD_COMM: | |
1325 | ret += perf_event__fprintf_comm(event, fp); | |
1326 | break; | |
1327 | case PERF_RECORD_FORK: | |
1328 | case PERF_RECORD_EXIT: | |
1329 | ret += perf_event__fprintf_task(event, fp); | |
1330 | break; | |
1331 | case PERF_RECORD_MMAP: | |
1332 | ret += perf_event__fprintf_mmap(event, fp); | |
f3b3614a HB |
1333 | break; |
1334 | case PERF_RECORD_NAMESPACES: | |
1335 | ret += perf_event__fprintf_namespaces(event, fp); | |
482ad897 | 1336 | break; |
5c5e854b SE |
1337 | case PERF_RECORD_MMAP2: |
1338 | ret += perf_event__fprintf_mmap2(event, fp); | |
1339 | break; | |
4a96f7a0 AH |
1340 | case PERF_RECORD_AUX: |
1341 | ret += perf_event__fprintf_aux(event, fp); | |
1342 | break; | |
0ad21f68 AH |
1343 | case PERF_RECORD_ITRACE_START: |
1344 | ret += perf_event__fprintf_itrace_start(event, fp); | |
1345 | break; | |
0286039f AH |
1346 | case PERF_RECORD_SWITCH: |
1347 | case PERF_RECORD_SWITCH_CPU_WIDE: | |
1348 | ret += perf_event__fprintf_switch(event, fp); | |
1349 | break; | |
482ad897 ACM |
1350 | default: |
1351 | ret += fprintf(fp, "\n"); | |
1352 | } | |
1353 | ||
1354 | return ret; | |
1355 | } | |
1356 | ||
b0a7d1a0 ACM |
1357 | int perf_event__process(struct perf_tool *tool __maybe_unused, |
1358 | union perf_event *event, | |
162f0bef | 1359 | struct perf_sample *sample, |
b0a7d1a0 | 1360 | struct machine *machine) |
b83f920e | 1361 | { |
162f0bef | 1362 | return machine__process_event(machine, event, sample); |
b83f920e SD |
1363 | } |
1364 | ||
bb871a9c | 1365 | void thread__find_addr_map(struct thread *thread, u8 cpumode, |
743eb868 | 1366 | enum map_type type, u64 addr, |
326f59bf | 1367 | struct addr_location *al) |
1ed091c4 | 1368 | { |
93d5731d | 1369 | struct map_groups *mg = thread->mg; |
bb871a9c | 1370 | struct machine *machine = mg->machine; |
5b7ba82a | 1371 | bool load_map = false; |
1ed091c4 | 1372 | |
cc22e575 | 1373 | al->machine = machine; |
316c7136 | 1374 | al->thread = thread; |
1ed091c4 | 1375 | al->addr = addr; |
a1645ce1 | 1376 | al->cpumode = cpumode; |
b3cef7f6 | 1377 | al->filtered = 0; |
1ed091c4 | 1378 | |
743eb868 ACM |
1379 | if (machine == NULL) { |
1380 | al->map = NULL; | |
1381 | return; | |
1382 | } | |
1383 | ||
a1645ce1 | 1384 | if (cpumode == PERF_RECORD_MISC_KERNEL && perf_host) { |
1ed091c4 | 1385 | al->level = 'k'; |
23346f21 | 1386 | mg = &machine->kmaps; |
5b7ba82a | 1387 | load_map = true; |
a1645ce1 | 1388 | } else if (cpumode == PERF_RECORD_MISC_USER && perf_host) { |
1ed091c4 | 1389 | al->level = '.'; |
a1645ce1 ZY |
1390 | } else if (cpumode == PERF_RECORD_MISC_GUEST_KERNEL && perf_guest) { |
1391 | al->level = 'g'; | |
23346f21 | 1392 | mg = &machine->kmaps; |
5b7ba82a | 1393 | load_map = true; |
fb50bb43 DY |
1394 | } else if (cpumode == PERF_RECORD_MISC_GUEST_USER && perf_guest) { |
1395 | al->level = 'u'; | |
a1645ce1 | 1396 | } else { |
fb50bb43 | 1397 | al->level = 'H'; |
1ed091c4 | 1398 | al->map = NULL; |
a1645ce1 ZY |
1399 | |
1400 | if ((cpumode == PERF_RECORD_MISC_GUEST_USER || | |
1401 | cpumode == PERF_RECORD_MISC_GUEST_KERNEL) && | |
1402 | !perf_guest) | |
b3cef7f6 | 1403 | al->filtered |= (1 << HIST_FILTER__GUEST); |
a1645ce1 ZY |
1404 | if ((cpumode == PERF_RECORD_MISC_USER || |
1405 | cpumode == PERF_RECORD_MISC_KERNEL) && | |
1406 | !perf_host) | |
b3cef7f6 | 1407 | al->filtered |= (1 << HIST_FILTER__HOST); |
a1645ce1 | 1408 | |
1ed091c4 ACM |
1409 | return; |
1410 | } | |
1411 | try_again: | |
9958e1f0 | 1412 | al->map = map_groups__find(mg, type, al->addr); |
1ed091c4 ACM |
1413 | if (al->map == NULL) { |
1414 | /* | |
1415 | * If this is outside of all known maps, and is a negative | |
1416 | * address, try to look it up in the kernel dso, as it might be | |
1417 | * a vsyscall or vdso (which executes in user-mode). | |
1418 | * | |
1419 | * XXX This is nasty, we should have a symbol list in the | |
1420 | * "[vdso]" dso, but for now lets use the old trick of looking | |
1421 | * in the whole kernel symbol list. | |
1422 | */ | |
fbe2af45 AH |
1423 | if (cpumode == PERF_RECORD_MISC_USER && machine && |
1424 | mg != &machine->kmaps && | |
1425 | machine__kernel_ip(machine, al->addr)) { | |
23346f21 | 1426 | mg = &machine->kmaps; |
1f2a7069 | 1427 | load_map = true; |
1ed091c4 ACM |
1428 | goto try_again; |
1429 | } | |
5b7ba82a AH |
1430 | } else { |
1431 | /* | |
1432 | * Kernel maps might be changed when loading symbols so loading | |
1433 | * must be done prior to using kernel maps. | |
1434 | */ | |
1435 | if (load_map) | |
be39db9f | 1436 | map__load(al->map); |
1ed091c4 | 1437 | al->addr = al->map->map_ip(al->map, al->addr); |
5b7ba82a | 1438 | } |
59ee68ec ACM |
1439 | } |
1440 | ||
bb871a9c | 1441 | void thread__find_addr_location(struct thread *thread, |
743eb868 | 1442 | u8 cpumode, enum map_type type, u64 addr, |
61710bde | 1443 | struct addr_location *al) |
59ee68ec | 1444 | { |
bb871a9c | 1445 | thread__find_addr_map(thread, cpumode, type, addr, al); |
59ee68ec | 1446 | if (al->map != NULL) |
be39db9f | 1447 | al->sym = map__find_symbol(al->map, al->addr); |
59ee68ec ACM |
1448 | else |
1449 | al->sym = NULL; | |
1ed091c4 ACM |
1450 | } |
1451 | ||
b91fc39f ACM |
1452 | /* |
1453 | * Callers need to drop the reference to al->thread, obtained in | |
1454 | * machine__findnew_thread() | |
1455 | */ | |
bb3eb566 ACM |
1456 | int machine__resolve(struct machine *machine, struct addr_location *al, |
1457 | struct perf_sample *sample) | |
1ed091c4 | 1458 | { |
ef89325f | 1459 | struct thread *thread = machine__findnew_thread(machine, sample->pid, |
13ce34df | 1460 | sample->tid); |
41a37e20 | 1461 | |
1ed091c4 ACM |
1462 | if (thread == NULL) |
1463 | return -1; | |
1464 | ||
b9c5143a | 1465 | dump_printf(" ... thread: %s:%d\n", thread__comm_str(thread), thread->tid); |
1f626bc3 | 1466 | /* |
743eb868 | 1467 | * Have we already created the kernel maps for this machine? |
1f626bc3 ACM |
1468 | * |
1469 | * This should have happened earlier, when we processed the kernel MMAP | |
1470 | * events, but for older perf.data files there was no such thing, so do | |
1471 | * it now. | |
1472 | */ | |
473398a2 | 1473 | if (sample->cpumode == PERF_RECORD_MISC_KERNEL && |
a5e813c6 | 1474 | machine__kernel_map(machine) == NULL) |
743eb868 | 1475 | machine__create_kernel_maps(machine); |
1ed091c4 | 1476 | |
473398a2 | 1477 | thread__find_addr_map(thread, sample->cpumode, MAP__FUNCTION, sample->ip, al); |
1ed091c4 ACM |
1478 | dump_printf(" ...... dso: %s\n", |
1479 | al->map ? al->map->dso->long_name : | |
1480 | al->level == 'H' ? "[hypervisor]" : "<not found>"); | |
466fa764 NK |
1481 | |
1482 | if (thread__is_filtered(thread)) | |
1483 | al->filtered |= (1 << HIST_FILTER__THREAD); | |
1484 | ||
96415e4d | 1485 | al->sym = NULL; |
8d50e5b4 | 1486 | al->cpu = sample->cpu; |
0c4c4deb KL |
1487 | al->socket = -1; |
1488 | ||
1489 | if (al->cpu >= 0) { | |
1490 | struct perf_env *env = machine->env; | |
1491 | ||
1492 | if (env && env->cpu) | |
1493 | al->socket = env->cpu[al->cpu].socket_id; | |
1494 | } | |
96415e4d ACM |
1495 | |
1496 | if (al->map) { | |
cb8f4e9a NK |
1497 | struct dso *dso = al->map->dso; |
1498 | ||
96415e4d | 1499 | if (symbol_conf.dso_list && |
cb8f4e9a NK |
1500 | (!dso || !(strlist__has_entry(symbol_conf.dso_list, |
1501 | dso->short_name) || | |
1502 | (dso->short_name != dso->long_name && | |
1503 | strlist__has_entry(symbol_conf.dso_list, | |
b3cef7f6 NK |
1504 | dso->long_name))))) { |
1505 | al->filtered |= (1 << HIST_FILTER__DSO); | |
b3cef7f6 | 1506 | } |
96415e4d | 1507 | |
be39db9f | 1508 | al->sym = map__find_symbol(al->map, al->addr); |
96415e4d | 1509 | } |
c410a338 | 1510 | |
1500b93b FT |
1511 | if (symbol_conf.sym_list && |
1512 | (!al->sym || !strlist__has_entry(symbol_conf.sym_list, | |
b3cef7f6 NK |
1513 | al->sym->name))) { |
1514 | al->filtered |= (1 << HIST_FILTER__SYMBOL); | |
b3cef7f6 | 1515 | } |
c410a338 | 1516 | |
c410a338 | 1517 | return 0; |
1ed091c4 | 1518 | } |
9b0d2d87 | 1519 | |
b91fc39f ACM |
1520 | /* |
1521 | * The preprocess_sample method will return with reference counts for the | |
1522 | * in it, when done using (and perhaps getting ref counts if needing to | |
1523 | * keep a pointer to one of those entries) it must be paired with | |
1524 | * addr_location__put(), so that the refcounts can be decremented. | |
1525 | */ | |
1526 | void addr_location__put(struct addr_location *al) | |
1527 | { | |
1528 | thread__zput(al->thread); | |
1529 | } | |
1530 | ||
9b0d2d87 AH |
1531 | bool is_bts_event(struct perf_event_attr *attr) |
1532 | { | |
1533 | return attr->type == PERF_TYPE_HARDWARE && | |
1534 | (attr->config & PERF_COUNT_HW_BRANCH_INSTRUCTIONS) && | |
1535 | attr->sample_period == 1; | |
1536 | } | |
1537 | ||
1538 | bool sample_addr_correlates_sym(struct perf_event_attr *attr) | |
1539 | { | |
1540 | if (attr->type == PERF_TYPE_SOFTWARE && | |
1541 | (attr->config == PERF_COUNT_SW_PAGE_FAULTS || | |
1542 | attr->config == PERF_COUNT_SW_PAGE_FAULTS_MIN || | |
1543 | attr->config == PERF_COUNT_SW_PAGE_FAULTS_MAJ)) | |
1544 | return true; | |
1545 | ||
1546 | if (is_bts_event(attr)) | |
1547 | return true; | |
1548 | ||
1549 | return false; | |
1550 | } | |
1551 | ||
c2740a87 ACM |
1552 | void thread__resolve(struct thread *thread, struct addr_location *al, |
1553 | struct perf_sample *sample) | |
9b0d2d87 | 1554 | { |
473398a2 | 1555 | thread__find_addr_map(thread, sample->cpumode, MAP__FUNCTION, sample->addr, al); |
9b0d2d87 | 1556 | if (!al->map) |
473398a2 | 1557 | thread__find_addr_map(thread, sample->cpumode, MAP__VARIABLE, |
9b0d2d87 AH |
1558 | sample->addr, al); |
1559 | ||
1560 | al->cpu = sample->cpu; | |
1561 | al->sym = NULL; | |
1562 | ||
1563 | if (al->map) | |
be39db9f | 1564 | al->sym = map__find_symbol(al->map, al->addr); |
9b0d2d87 | 1565 | } |