Commit | Line | Data |
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b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
76b31a29 | 2 | #include <dirent.h> |
a43783ae | 3 | #include <errno.h> |
fd20e811 | 4 | #include <inttypes.h> |
877a7a11 | 5 | #include <linux/kernel.h> |
234fbbf5 | 6 | #include <linux/types.h> |
7a8ef4c4 ACM |
7 | #include <sys/types.h> |
8 | #include <sys/stat.h> | |
9 | #include <unistd.h> | |
16eb8136 | 10 | #include <uapi/linux/mman.h> /* To get things like MAP_HUGETLB even on older libc headers */ |
d7e404af | 11 | #include <api/fs/fs.h> |
5ab8c689 | 12 | #include <linux/perf_event.h> |
234fbbf5 ACM |
13 | #include "event.h" |
14 | #include "debug.h" | |
b3cef7f6 | 15 | #include "hist.h" |
f62d3f0f | 16 | #include "machine.h" |
c410a338 | 17 | #include "sort.h" |
a067558e | 18 | #include "string2.h" |
c410a338 | 19 | #include "strlist.h" |
62daacb5 | 20 | #include "thread.h" |
7c940c18 | 21 | #include "thread_map.h" |
3d689ed6 | 22 | #include "sane_ctype.h" |
c506c96b | 23 | #include "symbol/kallsyms.h" |
67424342 JO |
24 | #include "asm/bug.h" |
25 | #include "stat.h" | |
234fbbf5 | 26 | |
8115d60c | 27 | static const char *perf_event__names[] = { |
3cb6d154 FW |
28 | [0] = "TOTAL", |
29 | [PERF_RECORD_MMAP] = "MMAP", | |
5c5e854b | 30 | [PERF_RECORD_MMAP2] = "MMAP2", |
3cb6d154 FW |
31 | [PERF_RECORD_LOST] = "LOST", |
32 | [PERF_RECORD_COMM] = "COMM", | |
33 | [PERF_RECORD_EXIT] = "EXIT", | |
34 | [PERF_RECORD_THROTTLE] = "THROTTLE", | |
35 | [PERF_RECORD_UNTHROTTLE] = "UNTHROTTLE", | |
36 | [PERF_RECORD_FORK] = "FORK", | |
37 | [PERF_RECORD_READ] = "READ", | |
38 | [PERF_RECORD_SAMPLE] = "SAMPLE", | |
4a96f7a0 | 39 | [PERF_RECORD_AUX] = "AUX", |
0ad21f68 | 40 | [PERF_RECORD_ITRACE_START] = "ITRACE_START", |
c4937a91 | 41 | [PERF_RECORD_LOST_SAMPLES] = "LOST_SAMPLES", |
0286039f AH |
42 | [PERF_RECORD_SWITCH] = "SWITCH", |
43 | [PERF_RECORD_SWITCH_CPU_WIDE] = "SWITCH_CPU_WIDE", | |
f3b3614a | 44 | [PERF_RECORD_NAMESPACES] = "NAMESPACES", |
3cb6d154 FW |
45 | [PERF_RECORD_HEADER_ATTR] = "ATTR", |
46 | [PERF_RECORD_HEADER_EVENT_TYPE] = "EVENT_TYPE", | |
47 | [PERF_RECORD_HEADER_TRACING_DATA] = "TRACING_DATA", | |
48 | [PERF_RECORD_HEADER_BUILD_ID] = "BUILD_ID", | |
49 | [PERF_RECORD_FINISHED_ROUND] = "FINISHED_ROUND", | |
3c659eed | 50 | [PERF_RECORD_ID_INDEX] = "ID_INDEX", |
a16ac023 AH |
51 | [PERF_RECORD_AUXTRACE_INFO] = "AUXTRACE_INFO", |
52 | [PERF_RECORD_AUXTRACE] = "AUXTRACE", | |
e9bf54d2 | 53 | [PERF_RECORD_AUXTRACE_ERROR] = "AUXTRACE_ERROR", |
5f3339d2 | 54 | [PERF_RECORD_THREAD_MAP] = "THREAD_MAP", |
6640b6c2 | 55 | [PERF_RECORD_CPU_MAP] = "CPU_MAP", |
374fb9e3 | 56 | [PERF_RECORD_STAT_CONFIG] = "STAT_CONFIG", |
d80518c9 | 57 | [PERF_RECORD_STAT] = "STAT", |
2d8f0f18 | 58 | [PERF_RECORD_STAT_ROUND] = "STAT_ROUND", |
ffe77725 | 59 | [PERF_RECORD_EVENT_UPDATE] = "EVENT_UPDATE", |
46bc29b9 | 60 | [PERF_RECORD_TIME_CONV] = "TIME_CONV", |
e9def1b2 | 61 | [PERF_RECORD_HEADER_FEATURE] = "FEATURE", |
c8446b9b ACM |
62 | }; |
63 | ||
f3b3614a HB |
64 | static const char *perf_ns__names[] = { |
65 | [NET_NS_INDEX] = "net", | |
66 | [UTS_NS_INDEX] = "uts", | |
67 | [IPC_NS_INDEX] = "ipc", | |
68 | [PID_NS_INDEX] = "pid", | |
69 | [USER_NS_INDEX] = "user", | |
70 | [MNT_NS_INDEX] = "mnt", | |
71 | [CGROUP_NS_INDEX] = "cgroup", | |
72 | }; | |
73 | ||
8115d60c | 74 | const char *perf_event__name(unsigned int id) |
3835bc00 | 75 | { |
8115d60c | 76 | if (id >= ARRAY_SIZE(perf_event__names)) |
3835bc00 | 77 | return "INVALID"; |
8115d60c | 78 | if (!perf_event__names[id]) |
3835bc00 | 79 | return "UNKNOWN"; |
8115d60c | 80 | return perf_event__names[id]; |
3835bc00 TG |
81 | } |
82 | ||
f3b3614a HB |
83 | static const char *perf_ns__name(unsigned int id) |
84 | { | |
85 | if (id >= ARRAY_SIZE(perf_ns__names)) | |
86 | return "UNKNOWN"; | |
87 | return perf_ns__names[id]; | |
88 | } | |
89 | ||
3ea223ad ACM |
90 | static int perf_tool__process_synth_event(struct perf_tool *tool, |
91 | union perf_event *event, | |
92 | struct machine *machine, | |
93 | perf_event__handler_t process) | |
94 | { | |
95 | struct perf_sample synth_sample = { | |
640c03ce ACM |
96 | .pid = -1, |
97 | .tid = -1, | |
98 | .time = -1, | |
99 | .stream_id = -1, | |
100 | .cpu = -1, | |
101 | .period = 1, | |
3ea223ad ACM |
102 | .cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK, |
103 | }; | |
104 | ||
105 | return process(tool, event, &synth_sample, machine); | |
640c03ce ACM |
106 | }; |
107 | ||
5aa0b030 DA |
108 | /* |
109 | * Assumes that the first 4095 bytes of /proc/pid/stat contains | |
ca6c41c5 | 110 | * the comm, tgid and ppid. |
5aa0b030 | 111 | */ |
ca6c41c5 DA |
112 | static int perf_event__get_comm_ids(pid_t pid, char *comm, size_t len, |
113 | pid_t *tgid, pid_t *ppid) | |
234fbbf5 | 114 | { |
234fbbf5 | 115 | char filename[PATH_MAX]; |
5aa0b030 DA |
116 | char bf[4096]; |
117 | int fd; | |
38349665 AH |
118 | size_t size = 0; |
119 | ssize_t n; | |
bdd97ca6 | 120 | char *name, *tgids, *ppids; |
ca6c41c5 DA |
121 | |
122 | *tgid = -1; | |
123 | *ppid = -1; | |
234fbbf5 ACM |
124 | |
125 | snprintf(filename, sizeof(filename), "/proc/%d/status", pid); | |
126 | ||
5aa0b030 DA |
127 | fd = open(filename, O_RDONLY); |
128 | if (fd < 0) { | |
234fbbf5 | 129 | pr_debug("couldn't open %s\n", filename); |
ca6c41c5 | 130 | return -1; |
234fbbf5 ACM |
131 | } |
132 | ||
5aa0b030 DA |
133 | n = read(fd, bf, sizeof(bf) - 1); |
134 | close(fd); | |
135 | if (n <= 0) { | |
ca6c41c5 | 136 | pr_warning("Couldn't get COMM, tigd and ppid for pid %d\n", |
5aa0b030 DA |
137 | pid); |
138 | return -1; | |
234fbbf5 | 139 | } |
5aa0b030 | 140 | bf[n] = '\0'; |
234fbbf5 | 141 | |
5aa0b030 DA |
142 | name = strstr(bf, "Name:"); |
143 | tgids = strstr(bf, "Tgid:"); | |
ca6c41c5 | 144 | ppids = strstr(bf, "PPid:"); |
5aa0b030 DA |
145 | |
146 | if (name) { | |
9d43f5e8 JO |
147 | char *nl; |
148 | ||
5aa0b030 | 149 | name += 5; /* strlen("Name:") */ |
9d43f5e8 JO |
150 | name = ltrim(name); |
151 | ||
152 | nl = strchr(name, '\n'); | |
153 | if (nl) | |
154 | *nl = '\0'; | |
155 | ||
5aa0b030 DA |
156 | size = strlen(name); |
157 | if (size >= len) | |
158 | size = len - 1; | |
159 | memcpy(comm, name, size); | |
160 | comm[size] = '\0'; | |
161 | } else { | |
162 | pr_debug("Name: string not found for pid %d\n", pid); | |
163 | } | |
164 | ||
165 | if (tgids) { | |
166 | tgids += 5; /* strlen("Tgid:") */ | |
ca6c41c5 | 167 | *tgid = atoi(tgids); |
5aa0b030 DA |
168 | } else { |
169 | pr_debug("Tgid: string not found for pid %d\n", pid); | |
170 | } | |
f5faf726 | 171 | |
ca6c41c5 DA |
172 | if (ppids) { |
173 | ppids += 5; /* strlen("PPid:") */ | |
174 | *ppid = atoi(ppids); | |
175 | } else { | |
176 | pr_debug("PPid: string not found for pid %d\n", pid); | |
177 | } | |
178 | ||
179 | return 0; | |
f5faf726 DA |
180 | } |
181 | ||
ca6c41c5 DA |
182 | static int perf_event__prepare_comm(union perf_event *event, pid_t pid, |
183 | struct machine *machine, | |
184 | pid_t *tgid, pid_t *ppid) | |
f5faf726 | 185 | { |
f5faf726 | 186 | size_t size; |
ca6c41c5 DA |
187 | |
188 | *ppid = -1; | |
f5faf726 DA |
189 | |
190 | memset(&event->comm, 0, sizeof(event->comm)); | |
191 | ||
ca6c41c5 DA |
192 | if (machine__is_host(machine)) { |
193 | if (perf_event__get_comm_ids(pid, event->comm.comm, | |
194 | sizeof(event->comm.comm), | |
195 | tgid, ppid) != 0) { | |
196 | return -1; | |
197 | } | |
198 | } else { | |
199 | *tgid = machine->pid; | |
200 | } | |
f5db57c4 | 201 | |
ca6c41c5 DA |
202 | if (*tgid < 0) |
203 | return -1; | |
f5faf726 | 204 | |
ca6c41c5 | 205 | event->comm.pid = *tgid; |
9c90a61c | 206 | event->comm.header.type = PERF_RECORD_COMM; |
f5faf726 DA |
207 | |
208 | size = strlen(event->comm.comm) + 1; | |
9ac3e487 | 209 | size = PERF_ALIGN(size, sizeof(u64)); |
743eb868 | 210 | memset(event->comm.comm + size, 0, machine->id_hdr_size); |
9c90a61c ACM |
211 | event->comm.header.size = (sizeof(event->comm) - |
212 | (sizeof(event->comm.comm) - size) + | |
743eb868 | 213 | machine->id_hdr_size); |
bfd66cc7 | 214 | event->comm.tid = pid; |
ca6c41c5 DA |
215 | |
216 | return 0; | |
4aa5f4f7 ACM |
217 | } |
218 | ||
e803cf97 | 219 | pid_t perf_event__synthesize_comm(struct perf_tool *tool, |
4aa5f4f7 ACM |
220 | union perf_event *event, pid_t pid, |
221 | perf_event__handler_t process, | |
222 | struct machine *machine) | |
223 | { | |
ca6c41c5 | 224 | pid_t tgid, ppid; |
4aa5f4f7 | 225 | |
ca6c41c5 DA |
226 | if (perf_event__prepare_comm(event, pid, machine, &tgid, &ppid) != 0) |
227 | return -1; | |
f5faf726 | 228 | |
3ea223ad | 229 | if (perf_tool__process_synth_event(tool, event, machine, process) != 0) |
bfd66cc7 | 230 | return -1; |
234fbbf5 | 231 | |
9c90a61c | 232 | return tgid; |
234fbbf5 ACM |
233 | } |
234 | ||
e907caf3 HB |
235 | static void perf_event__get_ns_link_info(pid_t pid, const char *ns, |
236 | struct perf_ns_link_info *ns_link_info) | |
237 | { | |
238 | struct stat64 st; | |
239 | char proc_ns[128]; | |
240 | ||
241 | sprintf(proc_ns, "/proc/%u/ns/%s", pid, ns); | |
242 | if (stat64(proc_ns, &st) == 0) { | |
243 | ns_link_info->dev = st.st_dev; | |
244 | ns_link_info->ino = st.st_ino; | |
245 | } | |
246 | } | |
247 | ||
248 | int perf_event__synthesize_namespaces(struct perf_tool *tool, | |
249 | union perf_event *event, | |
250 | pid_t pid, pid_t tgid, | |
251 | perf_event__handler_t process, | |
252 | struct machine *machine) | |
253 | { | |
254 | u32 idx; | |
255 | struct perf_ns_link_info *ns_link_info; | |
256 | ||
257 | if (!tool || !tool->namespace_events) | |
258 | return 0; | |
259 | ||
260 | memset(&event->namespaces, 0, (sizeof(event->namespaces) + | |
261 | (NR_NAMESPACES * sizeof(struct perf_ns_link_info)) + | |
262 | machine->id_hdr_size)); | |
263 | ||
264 | event->namespaces.pid = tgid; | |
265 | event->namespaces.tid = pid; | |
266 | ||
267 | event->namespaces.nr_namespaces = NR_NAMESPACES; | |
268 | ||
269 | ns_link_info = event->namespaces.link_info; | |
270 | ||
271 | for (idx = 0; idx < event->namespaces.nr_namespaces; idx++) | |
272 | perf_event__get_ns_link_info(pid, perf_ns__name(idx), | |
273 | &ns_link_info[idx]); | |
274 | ||
275 | event->namespaces.header.type = PERF_RECORD_NAMESPACES; | |
276 | ||
277 | event->namespaces.header.size = (sizeof(event->namespaces) + | |
278 | (NR_NAMESPACES * sizeof(struct perf_ns_link_info)) + | |
279 | machine->id_hdr_size); | |
280 | ||
281 | if (perf_tool__process_synth_event(tool, event, machine, process) != 0) | |
282 | return -1; | |
283 | ||
284 | return 0; | |
285 | } | |
286 | ||
363b785f | 287 | static int perf_event__synthesize_fork(struct perf_tool *tool, |
ca6c41c5 DA |
288 | union perf_event *event, |
289 | pid_t pid, pid_t tgid, pid_t ppid, | |
290 | perf_event__handler_t process, | |
363b785f DZ |
291 | struct machine *machine) |
292 | { | |
293 | memset(&event->fork, 0, sizeof(event->fork) + machine->id_hdr_size); | |
294 | ||
7764a385 DA |
295 | /* |
296 | * for main thread set parent to ppid from status file. For other | |
297 | * threads set parent pid to main thread. ie., assume main thread | |
298 | * spawns all threads in a process | |
299 | */ | |
300 | if (tgid == pid) { | |
301 | event->fork.ppid = ppid; | |
302 | event->fork.ptid = ppid; | |
303 | } else { | |
304 | event->fork.ppid = tgid; | |
305 | event->fork.ptid = tgid; | |
306 | } | |
363b785f DZ |
307 | event->fork.pid = tgid; |
308 | event->fork.tid = pid; | |
309 | event->fork.header.type = PERF_RECORD_FORK; | |
310 | ||
311 | event->fork.header.size = (sizeof(event->fork) + machine->id_hdr_size); | |
312 | ||
3ea223ad | 313 | if (perf_tool__process_synth_event(tool, event, machine, process) != 0) |
363b785f DZ |
314 | return -1; |
315 | ||
316 | return 0; | |
317 | } | |
318 | ||
a18382b6 JO |
319 | int perf_event__synthesize_mmap_events(struct perf_tool *tool, |
320 | union perf_event *event, | |
321 | pid_t pid, pid_t tgid, | |
322 | perf_event__handler_t process, | |
323 | struct machine *machine, | |
9d9cad76 KL |
324 | bool mmap_data, |
325 | unsigned int proc_map_timeout) | |
234fbbf5 ACM |
326 | { |
327 | char filename[PATH_MAX]; | |
328 | FILE *fp; | |
930e6fcd KL |
329 | unsigned long long t; |
330 | bool truncation = false; | |
9d9cad76 | 331 | unsigned long long timeout = proc_map_timeout * 1000000ULL; |
1e6d5322 | 332 | int rc = 0; |
d7e404af WN |
333 | const char *hugetlbfs_mnt = hugetlbfs__mountpoint(); |
334 | int hugetlbfs_mnt_len = hugetlbfs_mnt ? strlen(hugetlbfs_mnt) : 0; | |
234fbbf5 | 335 | |
c239c25a DY |
336 | if (machine__is_default_guest(machine)) |
337 | return 0; | |
338 | ||
88b897a3 SE |
339 | snprintf(filename, sizeof(filename), "%s/proc/%d/task/%d/maps", |
340 | machine->root_dir, pid, pid); | |
234fbbf5 ACM |
341 | |
342 | fp = fopen(filename, "r"); | |
343 | if (fp == NULL) { | |
344 | /* | |
345 | * We raced with a task exiting - just return: | |
346 | */ | |
347 | pr_debug("couldn't open %s\n", filename); | |
348 | return -1; | |
349 | } | |
350 | ||
a5a5ba72 | 351 | event->header.type = PERF_RECORD_MMAP2; |
930e6fcd | 352 | t = rdclock(); |
9c90a61c | 353 | |
234fbbf5 | 354 | while (1) { |
60648033 NK |
355 | char bf[BUFSIZ]; |
356 | char prot[5]; | |
357 | char execname[PATH_MAX]; | |
358 | char anonstr[] = "//anon"; | |
a5a5ba72 | 359 | unsigned int ino; |
234fbbf5 | 360 | size_t size; |
5c5e854b | 361 | ssize_t n; |
60648033 | 362 | |
234fbbf5 ACM |
363 | if (fgets(bf, sizeof(bf), fp) == NULL) |
364 | break; | |
365 | ||
9d9cad76 KL |
366 | if ((rdclock() - t) > timeout) { |
367 | pr_warning("Reading %s time out. " | |
368 | "You may want to increase " | |
369 | "the time limit by --proc-map-timeout\n", | |
370 | filename); | |
930e6fcd KL |
371 | truncation = true; |
372 | goto out; | |
373 | } | |
374 | ||
60648033 NK |
375 | /* ensure null termination since stack will be reused. */ |
376 | strcpy(execname, ""); | |
377 | ||
234fbbf5 | 378 | /* 00400000-0040c000 r-xp 00000000 fd:01 41038 /bin/cat */ |
89fee59b | 379 | n = sscanf(bf, "%"PRIx64"-%"PRIx64" %s %"PRIx64" %x:%x %u %[^\n]\n", |
a5a5ba72 DZ |
380 | &event->mmap2.start, &event->mmap2.len, prot, |
381 | &event->mmap2.pgoff, &event->mmap2.maj, | |
382 | &event->mmap2.min, | |
383 | &ino, execname); | |
384 | ||
9d4ecc88 DZ |
385 | /* |
386 | * Anon maps don't have the execname. | |
387 | */ | |
a5a5ba72 | 388 | if (n < 7) |
5c5e854b | 389 | continue; |
a5a5ba72 DZ |
390 | |
391 | event->mmap2.ino = (u64)ino; | |
392 | ||
62605dc5 ACM |
393 | /* |
394 | * Just like the kernel, see __perf_event_mmap in kernel/perf_event.c | |
395 | */ | |
73547aac DY |
396 | if (machine__is_host(machine)) |
397 | event->header.misc = PERF_RECORD_MISC_USER; | |
398 | else | |
399 | event->header.misc = PERF_RECORD_MISC_GUEST_USER; | |
60648033 | 400 | |
7ef80703 DZ |
401 | /* map protection and flags bits */ |
402 | event->mmap2.prot = 0; | |
403 | event->mmap2.flags = 0; | |
404 | if (prot[0] == 'r') | |
405 | event->mmap2.prot |= PROT_READ; | |
406 | if (prot[1] == 'w') | |
407 | event->mmap2.prot |= PROT_WRITE; | |
408 | if (prot[2] == 'x') | |
409 | event->mmap2.prot |= PROT_EXEC; | |
410 | ||
411 | if (prot[3] == 's') | |
412 | event->mmap2.flags |= MAP_SHARED; | |
413 | else | |
414 | event->mmap2.flags |= MAP_PRIVATE; | |
415 | ||
62605dc5 ACM |
416 | if (prot[2] != 'x') { |
417 | if (!mmap_data || prot[0] != 'r') | |
418 | continue; | |
419 | ||
420 | event->header.misc |= PERF_RECORD_MISC_MMAP_DATA; | |
421 | } | |
60648033 | 422 | |
930e6fcd KL |
423 | out: |
424 | if (truncation) | |
425 | event->header.misc |= PERF_RECORD_MISC_PROC_MAP_PARSE_TIMEOUT; | |
426 | ||
60648033 NK |
427 | if (!strcmp(execname, "")) |
428 | strcpy(execname, anonstr); | |
fbef103f | 429 | |
973186ca AH |
430 | if (hugetlbfs_mnt_len && |
431 | !strncmp(execname, hugetlbfs_mnt, hugetlbfs_mnt_len)) { | |
d7e404af WN |
432 | strcpy(execname, anonstr); |
433 | event->mmap2.flags |= MAP_HUGETLB; | |
434 | } | |
60648033 NK |
435 | |
436 | size = strlen(execname) + 1; | |
a5a5ba72 | 437 | memcpy(event->mmap2.filename, execname, size); |
60648033 | 438 | size = PERF_ALIGN(size, sizeof(u64)); |
a5a5ba72 DZ |
439 | event->mmap2.len -= event->mmap.start; |
440 | event->mmap2.header.size = (sizeof(event->mmap2) - | |
441 | (sizeof(event->mmap2.filename) - size)); | |
442 | memset(event->mmap2.filename + size, 0, machine->id_hdr_size); | |
443 | event->mmap2.header.size += machine->id_hdr_size; | |
444 | event->mmap2.pid = tgid; | |
445 | event->mmap2.tid = pid; | |
60648033 | 446 | |
3ea223ad | 447 | if (perf_tool__process_synth_event(tool, event, machine, process) != 0) { |
60648033 NK |
448 | rc = -1; |
449 | break; | |
234fbbf5 | 450 | } |
930e6fcd KL |
451 | |
452 | if (truncation) | |
453 | break; | |
234fbbf5 ACM |
454 | } |
455 | ||
456 | fclose(fp); | |
1e6d5322 | 457 | return rc; |
234fbbf5 ACM |
458 | } |
459 | ||
45694aa7 | 460 | int perf_event__synthesize_modules(struct perf_tool *tool, |
d20deb64 | 461 | perf_event__handler_t process, |
8115d60c | 462 | struct machine *machine) |
b7cece76 | 463 | { |
1e6d5322 | 464 | int rc = 0; |
4bb7123d | 465 | struct map *pos; |
23346f21 | 466 | struct map_groups *kmaps = &machine->kmaps; |
1eee78ae | 467 | struct maps *maps = &kmaps->maps[MAP__FUNCTION]; |
8115d60c | 468 | union perf_event *event = zalloc((sizeof(event->mmap) + |
743eb868 | 469 | machine->id_hdr_size)); |
9c90a61c ACM |
470 | if (event == NULL) { |
471 | pr_debug("Not enough memory synthesizing mmap event " | |
472 | "for kernel modules\n"); | |
473 | return -1; | |
474 | } | |
475 | ||
476 | event->header.type = PERF_RECORD_MMAP; | |
b7cece76 | 477 | |
a1645ce1 ZY |
478 | /* |
479 | * kernel uses 0 for user space maps, see kernel/perf_event.c | |
480 | * __perf_event_mmap | |
481 | */ | |
23346f21 | 482 | if (machine__is_host(machine)) |
9c90a61c | 483 | event->header.misc = PERF_RECORD_MISC_KERNEL; |
a1645ce1 | 484 | else |
9c90a61c | 485 | event->header.misc = PERF_RECORD_MISC_GUEST_KERNEL; |
a1645ce1 | 486 | |
4bb7123d | 487 | for (pos = maps__first(maps); pos; pos = map__next(pos)) { |
b7cece76 | 488 | size_t size; |
b7cece76 | 489 | |
ab9c2bdc | 490 | if (__map__is_kernel(pos)) |
b7cece76 ACM |
491 | continue; |
492 | ||
9ac3e487 | 493 | size = PERF_ALIGN(pos->dso->long_name_len + 1, sizeof(u64)); |
9c90a61c ACM |
494 | event->mmap.header.type = PERF_RECORD_MMAP; |
495 | event->mmap.header.size = (sizeof(event->mmap) - | |
496 | (sizeof(event->mmap.filename) - size)); | |
743eb868 ACM |
497 | memset(event->mmap.filename + size, 0, machine->id_hdr_size); |
498 | event->mmap.header.size += machine->id_hdr_size; | |
9c90a61c ACM |
499 | event->mmap.start = pos->start; |
500 | event->mmap.len = pos->end - pos->start; | |
501 | event->mmap.pid = machine->pid; | |
502 | ||
503 | memcpy(event->mmap.filename, pos->dso->long_name, | |
b7cece76 | 504 | pos->dso->long_name_len + 1); |
3ea223ad | 505 | if (perf_tool__process_synth_event(tool, event, machine, process) != 0) { |
1e6d5322 DA |
506 | rc = -1; |
507 | break; | |
508 | } | |
b7cece76 ACM |
509 | } |
510 | ||
9c90a61c | 511 | free(event); |
1e6d5322 | 512 | return rc; |
b7cece76 ACM |
513 | } |
514 | ||
8115d60c ACM |
515 | static int __event__synthesize_thread(union perf_event *comm_event, |
516 | union perf_event *mmap_event, | |
363b785f | 517 | union perf_event *fork_event, |
e907caf3 | 518 | union perf_event *namespaces_event, |
defd8d38 | 519 | pid_t pid, int full, |
e907caf3 | 520 | perf_event__handler_t process, |
45694aa7 | 521 | struct perf_tool *tool, |
9d9cad76 KL |
522 | struct machine *machine, |
523 | bool mmap_data, | |
524 | unsigned int proc_map_timeout) | |
234fbbf5 | 525 | { |
bfd66cc7 DZ |
526 | char filename[PATH_MAX]; |
527 | DIR *tasks; | |
7093b4c9 | 528 | struct dirent *dirent; |
ca6c41c5 | 529 | pid_t tgid, ppid; |
d998b732 | 530 | int rc = 0; |
bfd66cc7 DZ |
531 | |
532 | /* special case: only send one comm event using passed in pid */ | |
533 | if (!full) { | |
534 | tgid = perf_event__synthesize_comm(tool, comm_event, pid, | |
535 | process, machine); | |
536 | ||
537 | if (tgid == -1) | |
538 | return -1; | |
539 | ||
e907caf3 HB |
540 | if (perf_event__synthesize_namespaces(tool, namespaces_event, pid, |
541 | tgid, process, machine) < 0) | |
542 | return -1; | |
543 | ||
544 | ||
bfd66cc7 | 545 | return perf_event__synthesize_mmap_events(tool, mmap_event, pid, tgid, |
9d9cad76 KL |
546 | process, machine, mmap_data, |
547 | proc_map_timeout); | |
bfd66cc7 DZ |
548 | } |
549 | ||
550 | if (machine__is_default_guest(machine)) | |
551 | return 0; | |
552 | ||
553 | snprintf(filename, sizeof(filename), "%s/proc/%d/task", | |
554 | machine->root_dir, pid); | |
555 | ||
556 | tasks = opendir(filename); | |
557 | if (tasks == NULL) { | |
558 | pr_debug("couldn't open %s\n", filename); | |
559 | return 0; | |
560 | } | |
561 | ||
7093b4c9 | 562 | while ((dirent = readdir(tasks)) != NULL) { |
bfd66cc7 | 563 | char *end; |
bfd66cc7 DZ |
564 | pid_t _pid; |
565 | ||
7093b4c9 | 566 | _pid = strtol(dirent->d_name, &end, 10); |
bfd66cc7 DZ |
567 | if (*end) |
568 | continue; | |
569 | ||
d998b732 | 570 | rc = -1; |
ca6c41c5 DA |
571 | if (perf_event__prepare_comm(comm_event, _pid, machine, |
572 | &tgid, &ppid) != 0) | |
d998b732 | 573 | break; |
bfd66cc7 | 574 | |
4aa5f4f7 | 575 | if (perf_event__synthesize_fork(tool, fork_event, _pid, tgid, |
ca6c41c5 | 576 | ppid, process, machine) < 0) |
d998b732 | 577 | break; |
e907caf3 HB |
578 | |
579 | if (perf_event__synthesize_namespaces(tool, namespaces_event, _pid, | |
580 | tgid, process, machine) < 0) | |
581 | break; | |
582 | ||
4aa5f4f7 ACM |
583 | /* |
584 | * Send the prepared comm event | |
585 | */ | |
3ea223ad | 586 | if (perf_tool__process_synth_event(tool, comm_event, machine, process) != 0) |
d998b732 | 587 | break; |
4aa5f4f7 | 588 | |
d998b732 | 589 | rc = 0; |
363b785f DZ |
590 | if (_pid == pid) { |
591 | /* process the parent's maps too */ | |
592 | rc = perf_event__synthesize_mmap_events(tool, mmap_event, pid, tgid, | |
9d9cad76 | 593 | process, machine, mmap_data, proc_map_timeout); |
d998b732 ACM |
594 | if (rc) |
595 | break; | |
363b785f | 596 | } |
bfd66cc7 DZ |
597 | } |
598 | ||
599 | closedir(tasks); | |
d998b732 | 600 | return rc; |
234fbbf5 ACM |
601 | } |
602 | ||
45694aa7 | 603 | int perf_event__synthesize_thread_map(struct perf_tool *tool, |
d20deb64 | 604 | struct thread_map *threads, |
7c940c18 | 605 | perf_event__handler_t process, |
62605dc5 | 606 | struct machine *machine, |
9d9cad76 KL |
607 | bool mmap_data, |
608 | unsigned int proc_map_timeout) | |
9c90a61c | 609 | { |
363b785f | 610 | union perf_event *comm_event, *mmap_event, *fork_event; |
e907caf3 | 611 | union perf_event *namespaces_event; |
defd8d38 | 612 | int err = -1, thread, j; |
9c90a61c | 613 | |
743eb868 | 614 | comm_event = malloc(sizeof(comm_event->comm) + machine->id_hdr_size); |
9c90a61c ACM |
615 | if (comm_event == NULL) |
616 | goto out; | |
617 | ||
b0fb978e | 618 | mmap_event = malloc(sizeof(mmap_event->mmap2) + machine->id_hdr_size); |
9c90a61c ACM |
619 | if (mmap_event == NULL) |
620 | goto out_free_comm; | |
621 | ||
363b785f DZ |
622 | fork_event = malloc(sizeof(fork_event->fork) + machine->id_hdr_size); |
623 | if (fork_event == NULL) | |
624 | goto out_free_mmap; | |
625 | ||
e907caf3 HB |
626 | namespaces_event = malloc(sizeof(namespaces_event->namespaces) + |
627 | (NR_NAMESPACES * sizeof(struct perf_ns_link_info)) + | |
628 | machine->id_hdr_size); | |
629 | if (namespaces_event == NULL) | |
630 | goto out_free_fork; | |
631 | ||
401b8e13 ACM |
632 | err = 0; |
633 | for (thread = 0; thread < threads->nr; ++thread) { | |
634 | if (__event__synthesize_thread(comm_event, mmap_event, | |
e907caf3 | 635 | fork_event, namespaces_event, |
e13798c7 | 636 | thread_map__pid(threads, thread), 0, |
62605dc5 | 637 | process, tool, machine, |
9d9cad76 | 638 | mmap_data, proc_map_timeout)) { |
401b8e13 ACM |
639 | err = -1; |
640 | break; | |
641 | } | |
defd8d38 DA |
642 | |
643 | /* | |
644 | * comm.pid is set to thread group id by | |
645 | * perf_event__synthesize_comm | |
646 | */ | |
e13798c7 | 647 | if ((int) comm_event->comm.pid != thread_map__pid(threads, thread)) { |
defd8d38 DA |
648 | bool need_leader = true; |
649 | ||
650 | /* is thread group leader in thread_map? */ | |
651 | for (j = 0; j < threads->nr; ++j) { | |
e13798c7 | 652 | if ((int) comm_event->comm.pid == thread_map__pid(threads, j)) { |
defd8d38 DA |
653 | need_leader = false; |
654 | break; | |
655 | } | |
656 | } | |
657 | ||
658 | /* if not, generate events for it */ | |
659 | if (need_leader && | |
62605dc5 | 660 | __event__synthesize_thread(comm_event, mmap_event, |
e907caf3 | 661 | fork_event, namespaces_event, |
62605dc5 ACM |
662 | comm_event->comm.pid, 0, |
663 | process, tool, machine, | |
9d9cad76 | 664 | mmap_data, proc_map_timeout)) { |
defd8d38 DA |
665 | err = -1; |
666 | break; | |
667 | } | |
668 | } | |
401b8e13 | 669 | } |
e907caf3 HB |
670 | free(namespaces_event); |
671 | out_free_fork: | |
363b785f DZ |
672 | free(fork_event); |
673 | out_free_mmap: | |
9c90a61c ACM |
674 | free(mmap_event); |
675 | out_free_comm: | |
676 | free(comm_event); | |
677 | out: | |
678 | return err; | |
679 | } | |
680 | ||
45694aa7 | 681 | int perf_event__synthesize_threads(struct perf_tool *tool, |
d20deb64 | 682 | perf_event__handler_t process, |
9d9cad76 KL |
683 | struct machine *machine, |
684 | bool mmap_data, | |
685 | unsigned int proc_map_timeout) | |
234fbbf5 ACM |
686 | { |
687 | DIR *proc; | |
99563465 | 688 | char proc_path[PATH_MAX]; |
7093b4c9 | 689 | struct dirent *dirent; |
363b785f | 690 | union perf_event *comm_event, *mmap_event, *fork_event; |
e907caf3 | 691 | union perf_event *namespaces_event; |
9c90a61c ACM |
692 | int err = -1; |
693 | ||
574799bf NK |
694 | if (machine__is_default_guest(machine)) |
695 | return 0; | |
696 | ||
743eb868 | 697 | comm_event = malloc(sizeof(comm_event->comm) + machine->id_hdr_size); |
9c90a61c ACM |
698 | if (comm_event == NULL) |
699 | goto out; | |
700 | ||
b0fb978e | 701 | mmap_event = malloc(sizeof(mmap_event->mmap2) + machine->id_hdr_size); |
9c90a61c ACM |
702 | if (mmap_event == NULL) |
703 | goto out_free_comm; | |
234fbbf5 | 704 | |
363b785f DZ |
705 | fork_event = malloc(sizeof(fork_event->fork) + machine->id_hdr_size); |
706 | if (fork_event == NULL) | |
707 | goto out_free_mmap; | |
708 | ||
e907caf3 HB |
709 | namespaces_event = malloc(sizeof(namespaces_event->namespaces) + |
710 | (NR_NAMESPACES * sizeof(struct perf_ns_link_info)) + | |
711 | machine->id_hdr_size); | |
712 | if (namespaces_event == NULL) | |
713 | goto out_free_fork; | |
714 | ||
99563465 DY |
715 | snprintf(proc_path, sizeof(proc_path), "%s/proc", machine->root_dir); |
716 | proc = opendir(proc_path); | |
717 | ||
9c90a61c | 718 | if (proc == NULL) |
e907caf3 | 719 | goto out_free_namespaces; |
234fbbf5 | 720 | |
7093b4c9 | 721 | while ((dirent = readdir(proc)) != NULL) { |
234fbbf5 | 722 | char *end; |
7093b4c9 | 723 | pid_t pid = strtol(dirent->d_name, &end, 10); |
234fbbf5 ACM |
724 | |
725 | if (*end) /* only interested in proper numerical dirents */ | |
726 | continue; | |
ba361c92 ACM |
727 | /* |
728 | * We may race with exiting thread, so don't stop just because | |
729 | * one thread couldn't be synthesized. | |
730 | */ | |
e907caf3 HB |
731 | __event__synthesize_thread(comm_event, mmap_event, fork_event, |
732 | namespaces_event, pid, 1, process, | |
733 | tool, machine, mmap_data, | |
9d9cad76 | 734 | proc_map_timeout); |
234fbbf5 ACM |
735 | } |
736 | ||
9c90a61c | 737 | err = 0; |
1e6d5322 | 738 | closedir(proc); |
e907caf3 HB |
739 | out_free_namespaces: |
740 | free(namespaces_event); | |
363b785f DZ |
741 | out_free_fork: |
742 | free(fork_event); | |
9c90a61c ACM |
743 | out_free_mmap: |
744 | free(mmap_event); | |
745 | out_free_comm: | |
746 | free(comm_event); | |
747 | out: | |
748 | return err; | |
234fbbf5 | 749 | } |
62daacb5 | 750 | |
56b03f3c ACM |
751 | struct process_symbol_args { |
752 | const char *name; | |
753 | u64 start; | |
754 | }; | |
755 | ||
3b01a413 | 756 | static int find_symbol_cb(void *arg, const char *name, char type, |
82151520 | 757 | u64 start) |
56b03f3c ACM |
758 | { |
759 | struct process_symbol_args *args = arg; | |
760 | ||
881516eb ACM |
761 | /* |
762 | * Must be a function or at least an alias, as in PARISC64, where "_text" is | |
763 | * an 'A' to the same address as "_stext". | |
764 | */ | |
765 | if (!(symbol_type__is_a(type, MAP__FUNCTION) || | |
766 | type == 'A') || strcmp(name, args->name)) | |
56b03f3c ACM |
767 | return 0; |
768 | ||
769 | args->start = start; | |
770 | return 1; | |
771 | } | |
772 | ||
b843f62a ACM |
773 | int kallsyms__get_function_start(const char *kallsyms_filename, |
774 | const char *symbol_name, u64 *addr) | |
29b596b5 AH |
775 | { |
776 | struct process_symbol_args args = { .name = symbol_name, }; | |
777 | ||
778 | if (kallsyms__parse(kallsyms_filename, &args, find_symbol_cb) <= 0) | |
b843f62a | 779 | return -1; |
29b596b5 | 780 | |
b843f62a ACM |
781 | *addr = args.start; |
782 | return 0; | |
29b596b5 AH |
783 | } |
784 | ||
45694aa7 | 785 | int perf_event__synthesize_kernel_mmap(struct perf_tool *tool, |
d20deb64 | 786 | perf_event__handler_t process, |
0ae617be | 787 | struct machine *machine) |
56b03f3c ACM |
788 | { |
789 | size_t size; | |
0ae617be | 790 | const char *mmap_name; |
a1645ce1 | 791 | char name_buff[PATH_MAX]; |
a5e813c6 | 792 | struct map *map = machine__kernel_map(machine); |
0ae617be | 793 | struct kmap *kmap; |
9c90a61c | 794 | int err; |
a5c2a4c9 AK |
795 | union perf_event *event; |
796 | ||
3dc6c1d5 WN |
797 | if (symbol_conf.kptr_restrict) |
798 | return -1; | |
77e65977 | 799 | if (map == NULL) |
a5c2a4c9 AK |
800 | return -1; |
801 | ||
56b03f3c ACM |
802 | /* |
803 | * We should get this from /sys/kernel/sections/.text, but till that is | |
804 | * available use this, and after it is use this as a fallback for older | |
805 | * kernels. | |
806 | */ | |
a5c2a4c9 | 807 | event = zalloc((sizeof(event->mmap) + machine->id_hdr_size)); |
9c90a61c ACM |
808 | if (event == NULL) { |
809 | pr_debug("Not enough memory synthesizing mmap event " | |
810 | "for kernel modules\n"); | |
811 | return -1; | |
812 | } | |
56b03f3c | 813 | |
48ea8f54 | 814 | mmap_name = machine__mmap_name(machine, name_buff, sizeof(name_buff)); |
23346f21 | 815 | if (machine__is_host(machine)) { |
a1645ce1 ZY |
816 | /* |
817 | * kernel uses PERF_RECORD_MISC_USER for user space maps, | |
818 | * see kernel/perf_event.c __perf_event_mmap | |
819 | */ | |
9c90a61c | 820 | event->header.misc = PERF_RECORD_MISC_KERNEL; |
a1645ce1 | 821 | } else { |
9c90a61c | 822 | event->header.misc = PERF_RECORD_MISC_GUEST_KERNEL; |
0b9e01a4 | 823 | } |
56b03f3c | 824 | |
0ae617be | 825 | kmap = map__kmap(map); |
9c90a61c | 826 | size = snprintf(event->mmap.filename, sizeof(event->mmap.filename), |
0ae617be | 827 | "%s%s", mmap_name, kmap->ref_reloc_sym->name) + 1; |
9ac3e487 | 828 | size = PERF_ALIGN(size, sizeof(u64)); |
9c90a61c ACM |
829 | event->mmap.header.type = PERF_RECORD_MMAP; |
830 | event->mmap.header.size = (sizeof(event->mmap) - | |
743eb868 | 831 | (sizeof(event->mmap.filename) - size) + machine->id_hdr_size); |
0ae617be | 832 | event->mmap.pgoff = kmap->ref_reloc_sym->addr; |
9c90a61c ACM |
833 | event->mmap.start = map->start; |
834 | event->mmap.len = map->end - event->mmap.start; | |
835 | event->mmap.pid = machine->pid; | |
836 | ||
3ea223ad | 837 | err = perf_tool__process_synth_event(tool, event, machine, process); |
9c90a61c ACM |
838 | free(event); |
839 | ||
840 | return err; | |
56b03f3c ACM |
841 | } |
842 | ||
99471c96 JO |
843 | int perf_event__synthesize_thread_map2(struct perf_tool *tool, |
844 | struct thread_map *threads, | |
845 | perf_event__handler_t process, | |
846 | struct machine *machine) | |
847 | { | |
848 | union perf_event *event; | |
849 | int i, err, size; | |
850 | ||
851 | size = sizeof(event->thread_map); | |
852 | size += threads->nr * sizeof(event->thread_map.entries[0]); | |
853 | ||
854 | event = zalloc(size); | |
855 | if (!event) | |
856 | return -ENOMEM; | |
857 | ||
858 | event->header.type = PERF_RECORD_THREAD_MAP; | |
859 | event->header.size = size; | |
860 | event->thread_map.nr = threads->nr; | |
861 | ||
862 | for (i = 0; i < threads->nr; i++) { | |
863 | struct thread_map_event_entry *entry = &event->thread_map.entries[i]; | |
864 | char *comm = thread_map__comm(threads, i); | |
865 | ||
866 | if (!comm) | |
867 | comm = (char *) ""; | |
868 | ||
869 | entry->pid = thread_map__pid(threads, i); | |
870 | strncpy((char *) &entry->comm, comm, sizeof(entry->comm)); | |
871 | } | |
872 | ||
873 | err = process(tool, event, NULL, machine); | |
874 | ||
875 | free(event); | |
876 | return err; | |
877 | } | |
878 | ||
6c872901 JO |
879 | static void synthesize_cpus(struct cpu_map_entries *cpus, |
880 | struct cpu_map *map) | |
881 | { | |
882 | int i; | |
883 | ||
884 | cpus->nr = map->nr; | |
885 | ||
886 | for (i = 0; i < map->nr; i++) | |
887 | cpus->cpu[i] = map->map[i]; | |
888 | } | |
889 | ||
890 | static void synthesize_mask(struct cpu_map_mask *mask, | |
891 | struct cpu_map *map, int max) | |
892 | { | |
893 | int i; | |
894 | ||
895 | mask->nr = BITS_TO_LONGS(max); | |
896 | mask->long_size = sizeof(long); | |
897 | ||
898 | for (i = 0; i < map->nr; i++) | |
899 | set_bit(map->map[i], mask->mask); | |
900 | } | |
901 | ||
902 | static size_t cpus_size(struct cpu_map *map) | |
903 | { | |
904 | return sizeof(struct cpu_map_entries) + map->nr * sizeof(u16); | |
905 | } | |
906 | ||
907 | static size_t mask_size(struct cpu_map *map, int *max) | |
908 | { | |
909 | int i; | |
910 | ||
911 | *max = 0; | |
912 | ||
913 | for (i = 0; i < map->nr; i++) { | |
914 | /* bit possition of the cpu is + 1 */ | |
915 | int bit = map->map[i] + 1; | |
916 | ||
917 | if (bit > *max) | |
918 | *max = bit; | |
919 | } | |
920 | ||
921 | return sizeof(struct cpu_map_mask) + BITS_TO_LONGS(*max) * sizeof(long); | |
922 | } | |
923 | ||
924 | void *cpu_map_data__alloc(struct cpu_map *map, size_t *size, u16 *type, int *max) | |
925 | { | |
926 | size_t size_cpus, size_mask; | |
927 | bool is_dummy = cpu_map__empty(map); | |
928 | ||
929 | /* | |
930 | * Both array and mask data have variable size based | |
931 | * on the number of cpus and their actual values. | |
932 | * The size of the 'struct cpu_map_data' is: | |
933 | * | |
934 | * array = size of 'struct cpu_map_entries' + | |
935 | * number of cpus * sizeof(u64) | |
936 | * | |
937 | * mask = size of 'struct cpu_map_mask' + | |
938 | * maximum cpu bit converted to size of longs | |
939 | * | |
940 | * and finaly + the size of 'struct cpu_map_data'. | |
941 | */ | |
942 | size_cpus = cpus_size(map); | |
943 | size_mask = mask_size(map, max); | |
944 | ||
945 | if (is_dummy || (size_cpus < size_mask)) { | |
946 | *size += size_cpus; | |
947 | *type = PERF_CPU_MAP__CPUS; | |
948 | } else { | |
949 | *size += size_mask; | |
950 | *type = PERF_CPU_MAP__MASK; | |
951 | } | |
952 | ||
953 | *size += sizeof(struct cpu_map_data); | |
954 | return zalloc(*size); | |
955 | } | |
956 | ||
957 | void cpu_map_data__synthesize(struct cpu_map_data *data, struct cpu_map *map, | |
958 | u16 type, int max) | |
959 | { | |
960 | data->type = type; | |
961 | ||
962 | switch (type) { | |
963 | case PERF_CPU_MAP__CPUS: | |
964 | synthesize_cpus((struct cpu_map_entries *) data->data, map); | |
965 | break; | |
966 | case PERF_CPU_MAP__MASK: | |
967 | synthesize_mask((struct cpu_map_mask *) data->data, map, max); | |
968 | default: | |
969 | break; | |
970 | }; | |
971 | } | |
972 | ||
973 | static struct cpu_map_event* cpu_map_event__new(struct cpu_map *map) | |
974 | { | |
975 | size_t size = sizeof(struct cpu_map_event); | |
976 | struct cpu_map_event *event; | |
977 | int max; | |
978 | u16 type; | |
979 | ||
980 | event = cpu_map_data__alloc(map, &size, &type, &max); | |
981 | if (!event) | |
982 | return NULL; | |
983 | ||
984 | event->header.type = PERF_RECORD_CPU_MAP; | |
985 | event->header.size = size; | |
986 | event->data.type = type; | |
987 | ||
988 | cpu_map_data__synthesize(&event->data, map, type, max); | |
989 | return event; | |
990 | } | |
991 | ||
992 | int perf_event__synthesize_cpu_map(struct perf_tool *tool, | |
993 | struct cpu_map *map, | |
994 | perf_event__handler_t process, | |
995 | struct machine *machine) | |
996 | { | |
997 | struct cpu_map_event *event; | |
998 | int err; | |
999 | ||
1000 | event = cpu_map_event__new(map); | |
1001 | if (!event) | |
1002 | return -ENOMEM; | |
1003 | ||
1004 | err = process(tool, (union perf_event *) event, NULL, machine); | |
1005 | ||
1006 | free(event); | |
1007 | return err; | |
1008 | } | |
1009 | ||
67424342 JO |
1010 | int perf_event__synthesize_stat_config(struct perf_tool *tool, |
1011 | struct perf_stat_config *config, | |
1012 | perf_event__handler_t process, | |
1013 | struct machine *machine) | |
1014 | { | |
1015 | struct stat_config_event *event; | |
1016 | int size, i = 0, err; | |
1017 | ||
1018 | size = sizeof(*event); | |
1019 | size += (PERF_STAT_CONFIG_TERM__MAX * sizeof(event->data[0])); | |
1020 | ||
1021 | event = zalloc(size); | |
1022 | if (!event) | |
1023 | return -ENOMEM; | |
1024 | ||
1025 | event->header.type = PERF_RECORD_STAT_CONFIG; | |
1026 | event->header.size = size; | |
1027 | event->nr = PERF_STAT_CONFIG_TERM__MAX; | |
1028 | ||
1029 | #define ADD(__term, __val) \ | |
1030 | event->data[i].tag = PERF_STAT_CONFIG_TERM__##__term; \ | |
1031 | event->data[i].val = __val; \ | |
1032 | i++; | |
1033 | ||
1034 | ADD(AGGR_MODE, config->aggr_mode) | |
1035 | ADD(INTERVAL, config->interval) | |
1036 | ADD(SCALE, config->scale) | |
1037 | ||
1038 | WARN_ONCE(i != PERF_STAT_CONFIG_TERM__MAX, | |
1039 | "stat config terms unbalanced\n"); | |
1040 | #undef ADD | |
1041 | ||
1042 | err = process(tool, (union perf_event *) event, NULL, machine); | |
1043 | ||
1044 | free(event); | |
1045 | return err; | |
1046 | } | |
1047 | ||
5796f8f0 JO |
1048 | int perf_event__synthesize_stat(struct perf_tool *tool, |
1049 | u32 cpu, u32 thread, u64 id, | |
1050 | struct perf_counts_values *count, | |
1051 | perf_event__handler_t process, | |
1052 | struct machine *machine) | |
1053 | { | |
1054 | struct stat_event event; | |
1055 | ||
1056 | event.header.type = PERF_RECORD_STAT; | |
1057 | event.header.size = sizeof(event); | |
1058 | event.header.misc = 0; | |
1059 | ||
1060 | event.id = id; | |
1061 | event.cpu = cpu; | |
1062 | event.thread = thread; | |
1063 | event.val = count->val; | |
1064 | event.ena = count->ena; | |
1065 | event.run = count->run; | |
1066 | ||
1067 | return process(tool, (union perf_event *) &event, NULL, machine); | |
1068 | } | |
1069 | ||
d4c22591 JO |
1070 | int perf_event__synthesize_stat_round(struct perf_tool *tool, |
1071 | u64 evtime, u64 type, | |
1072 | perf_event__handler_t process, | |
1073 | struct machine *machine) | |
1074 | { | |
1075 | struct stat_round_event event; | |
1076 | ||
1077 | event.header.type = PERF_RECORD_STAT_ROUND; | |
1078 | event.header.size = sizeof(event); | |
1079 | event.header.misc = 0; | |
1080 | ||
1081 | event.time = evtime; | |
1082 | event.type = type; | |
1083 | ||
1084 | return process(tool, (union perf_event *) &event, NULL, machine); | |
1085 | } | |
1086 | ||
8e381596 JO |
1087 | void perf_event__read_stat_config(struct perf_stat_config *config, |
1088 | struct stat_config_event *event) | |
1089 | { | |
1090 | unsigned i; | |
1091 | ||
1092 | for (i = 0; i < event->nr; i++) { | |
1093 | ||
1094 | switch (event->data[i].tag) { | |
1095 | #define CASE(__term, __val) \ | |
1096 | case PERF_STAT_CONFIG_TERM__##__term: \ | |
1097 | config->__val = event->data[i].val; \ | |
1098 | break; | |
1099 | ||
1100 | CASE(AGGR_MODE, aggr_mode) | |
1101 | CASE(SCALE, scale) | |
1102 | CASE(INTERVAL, interval) | |
1103 | #undef CASE | |
1104 | default: | |
1105 | pr_warning("unknown stat config term %" PRIu64 "\n", | |
1106 | event->data[i].tag); | |
1107 | } | |
1108 | } | |
1109 | } | |
1110 | ||
482ad897 ACM |
1111 | size_t perf_event__fprintf_comm(union perf_event *event, FILE *fp) |
1112 | { | |
022c50d0 AH |
1113 | const char *s; |
1114 | ||
1115 | if (event->header.misc & PERF_RECORD_MISC_COMM_EXEC) | |
1116 | s = " exec"; | |
1117 | else | |
1118 | s = ""; | |
1119 | ||
50674065 | 1120 | return fprintf(fp, "%s: %s:%d/%d\n", s, event->comm.comm, event->comm.pid, event->comm.tid); |
482ad897 ACM |
1121 | } |
1122 | ||
f3b3614a HB |
1123 | size_t perf_event__fprintf_namespaces(union perf_event *event, FILE *fp) |
1124 | { | |
1125 | size_t ret = 0; | |
1126 | struct perf_ns_link_info *ns_link_info; | |
1127 | u32 nr_namespaces, idx; | |
1128 | ||
1129 | ns_link_info = event->namespaces.link_info; | |
1130 | nr_namespaces = event->namespaces.nr_namespaces; | |
1131 | ||
1132 | ret += fprintf(fp, " %d/%d - nr_namespaces: %u\n\t\t[", | |
1133 | event->namespaces.pid, | |
1134 | event->namespaces.tid, | |
1135 | nr_namespaces); | |
1136 | ||
1137 | for (idx = 0; idx < nr_namespaces; idx++) { | |
1138 | if (idx && (idx % 4 == 0)) | |
1139 | ret += fprintf(fp, "\n\t\t "); | |
1140 | ||
1141 | ret += fprintf(fp, "%u/%s: %" PRIu64 "/%#" PRIx64 "%s", idx, | |
1142 | perf_ns__name(idx), (u64)ns_link_info[idx].dev, | |
1143 | (u64)ns_link_info[idx].ino, | |
1144 | ((idx + 1) != nr_namespaces) ? ", " : "]\n"); | |
1145 | } | |
1146 | ||
1147 | return ret; | |
1148 | } | |
1149 | ||
1d037ca1 | 1150 | int perf_event__process_comm(struct perf_tool *tool __maybe_unused, |
d20deb64 | 1151 | union perf_event *event, |
162f0bef | 1152 | struct perf_sample *sample, |
743eb868 | 1153 | struct machine *machine) |
62daacb5 | 1154 | { |
162f0bef | 1155 | return machine__process_comm_event(machine, event, sample); |
62daacb5 ACM |
1156 | } |
1157 | ||
f3b3614a HB |
1158 | int perf_event__process_namespaces(struct perf_tool *tool __maybe_unused, |
1159 | union perf_event *event, | |
1160 | struct perf_sample *sample, | |
1161 | struct machine *machine) | |
1162 | { | |
1163 | return machine__process_namespaces_event(machine, event, sample); | |
1164 | } | |
1165 | ||
1d037ca1 | 1166 | int perf_event__process_lost(struct perf_tool *tool __maybe_unused, |
d20deb64 | 1167 | union perf_event *event, |
162f0bef | 1168 | struct perf_sample *sample, |
b0a7d1a0 | 1169 | struct machine *machine) |
62daacb5 | 1170 | { |
162f0bef | 1171 | return machine__process_lost_event(machine, event, sample); |
a1645ce1 | 1172 | } |
b7cece76 | 1173 | |
4a96f7a0 AH |
1174 | int perf_event__process_aux(struct perf_tool *tool __maybe_unused, |
1175 | union perf_event *event, | |
1176 | struct perf_sample *sample __maybe_unused, | |
1177 | struct machine *machine) | |
1178 | { | |
1179 | return machine__process_aux_event(machine, event); | |
1180 | } | |
1181 | ||
0ad21f68 AH |
1182 | int perf_event__process_itrace_start(struct perf_tool *tool __maybe_unused, |
1183 | union perf_event *event, | |
1184 | struct perf_sample *sample __maybe_unused, | |
1185 | struct machine *machine) | |
1186 | { | |
1187 | return machine__process_itrace_start_event(machine, event); | |
1188 | } | |
1189 | ||
c4937a91 KL |
1190 | int perf_event__process_lost_samples(struct perf_tool *tool __maybe_unused, |
1191 | union perf_event *event, | |
1192 | struct perf_sample *sample, | |
1193 | struct machine *machine) | |
1194 | { | |
1195 | return machine__process_lost_samples_event(machine, event, sample); | |
1196 | } | |
1197 | ||
0286039f AH |
1198 | int perf_event__process_switch(struct perf_tool *tool __maybe_unused, |
1199 | union perf_event *event, | |
1200 | struct perf_sample *sample __maybe_unused, | |
1201 | struct machine *machine) | |
1202 | { | |
1203 | return machine__process_switch_event(machine, event); | |
1204 | } | |
1205 | ||
482ad897 ACM |
1206 | size_t perf_event__fprintf_mmap(union perf_event *event, FILE *fp) |
1207 | { | |
62605dc5 | 1208 | return fprintf(fp, " %d/%d: [%#" PRIx64 "(%#" PRIx64 ") @ %#" PRIx64 "]: %c %s\n", |
482ad897 | 1209 | event->mmap.pid, event->mmap.tid, event->mmap.start, |
62605dc5 ACM |
1210 | event->mmap.len, event->mmap.pgoff, |
1211 | (event->header.misc & PERF_RECORD_MISC_MMAP_DATA) ? 'r' : 'x', | |
1212 | event->mmap.filename); | |
482ad897 ACM |
1213 | } |
1214 | ||
5c5e854b SE |
1215 | size_t perf_event__fprintf_mmap2(union perf_event *event, FILE *fp) |
1216 | { | |
1217 | return fprintf(fp, " %d/%d: [%#" PRIx64 "(%#" PRIx64 ") @ %#" PRIx64 | |
7ef80703 | 1218 | " %02x:%02x %"PRIu64" %"PRIu64"]: %c%c%c%c %s\n", |
5c5e854b SE |
1219 | event->mmap2.pid, event->mmap2.tid, event->mmap2.start, |
1220 | event->mmap2.len, event->mmap2.pgoff, event->mmap2.maj, | |
1221 | event->mmap2.min, event->mmap2.ino, | |
1222 | event->mmap2.ino_generation, | |
7ef80703 DZ |
1223 | (event->mmap2.prot & PROT_READ) ? 'r' : '-', |
1224 | (event->mmap2.prot & PROT_WRITE) ? 'w' : '-', | |
1225 | (event->mmap2.prot & PROT_EXEC) ? 'x' : '-', | |
1226 | (event->mmap2.flags & MAP_SHARED) ? 's' : 'p', | |
5c5e854b SE |
1227 | event->mmap2.filename); |
1228 | } | |
1229 | ||
ec7fa596 JO |
1230 | size_t perf_event__fprintf_thread_map(union perf_event *event, FILE *fp) |
1231 | { | |
1232 | struct thread_map *threads = thread_map__new_event(&event->thread_map); | |
1233 | size_t ret; | |
1234 | ||
1235 | ret = fprintf(fp, " nr: "); | |
1236 | ||
1237 | if (threads) | |
1238 | ret += thread_map__fprintf(threads, fp); | |
1239 | else | |
1240 | ret += fprintf(fp, "failed to get threads from event\n"); | |
1241 | ||
1242 | thread_map__put(threads); | |
1243 | return ret; | |
1244 | } | |
1245 | ||
eb12a1af JO |
1246 | size_t perf_event__fprintf_cpu_map(union perf_event *event, FILE *fp) |
1247 | { | |
1248 | struct cpu_map *cpus = cpu_map__new_data(&event->cpu_map.data); | |
1249 | size_t ret; | |
1250 | ||
a24020e6 | 1251 | ret = fprintf(fp, ": "); |
eb12a1af JO |
1252 | |
1253 | if (cpus) | |
1254 | ret += cpu_map__fprintf(cpus, fp); | |
1255 | else | |
1256 | ret += fprintf(fp, "failed to get cpumap from event\n"); | |
1257 | ||
1258 | cpu_map__put(cpus); | |
1259 | return ret; | |
1260 | } | |
1261 | ||
b0a7d1a0 | 1262 | int perf_event__process_mmap(struct perf_tool *tool __maybe_unused, |
d20deb64 | 1263 | union perf_event *event, |
162f0bef | 1264 | struct perf_sample *sample, |
743eb868 | 1265 | struct machine *machine) |
a1645ce1 | 1266 | { |
162f0bef | 1267 | return machine__process_mmap_event(machine, event, sample); |
62daacb5 ACM |
1268 | } |
1269 | ||
5c5e854b SE |
1270 | int perf_event__process_mmap2(struct perf_tool *tool __maybe_unused, |
1271 | union perf_event *event, | |
162f0bef | 1272 | struct perf_sample *sample, |
5c5e854b SE |
1273 | struct machine *machine) |
1274 | { | |
162f0bef | 1275 | return machine__process_mmap2_event(machine, event, sample); |
5c5e854b SE |
1276 | } |
1277 | ||
482ad897 ACM |
1278 | size_t perf_event__fprintf_task(union perf_event *event, FILE *fp) |
1279 | { | |
1280 | return fprintf(fp, "(%d:%d):(%d:%d)\n", | |
1281 | event->fork.pid, event->fork.tid, | |
1282 | event->fork.ppid, event->fork.ptid); | |
1283 | } | |
1284 | ||
f62d3f0f | 1285 | int perf_event__process_fork(struct perf_tool *tool __maybe_unused, |
d20deb64 | 1286 | union perf_event *event, |
162f0bef | 1287 | struct perf_sample *sample, |
f62d3f0f | 1288 | struct machine *machine) |
62daacb5 | 1289 | { |
162f0bef | 1290 | return machine__process_fork_event(machine, event, sample); |
62daacb5 | 1291 | } |
1ed091c4 | 1292 | |
f62d3f0f ACM |
1293 | int perf_event__process_exit(struct perf_tool *tool __maybe_unused, |
1294 | union perf_event *event, | |
162f0bef | 1295 | struct perf_sample *sample, |
f62d3f0f ACM |
1296 | struct machine *machine) |
1297 | { | |
162f0bef | 1298 | return machine__process_exit_event(machine, event, sample); |
f62d3f0f ACM |
1299 | } |
1300 | ||
4a96f7a0 AH |
1301 | size_t perf_event__fprintf_aux(union perf_event *event, FILE *fp) |
1302 | { | |
05a1f47e | 1303 | return fprintf(fp, " offset: %#"PRIx64" size: %#"PRIx64" flags: %#"PRIx64" [%s%s%s]\n", |
4a96f7a0 AH |
1304 | event->aux.aux_offset, event->aux.aux_size, |
1305 | event->aux.flags, | |
1306 | event->aux.flags & PERF_AUX_FLAG_TRUNCATED ? "T" : "", | |
05a1f47e AS |
1307 | event->aux.flags & PERF_AUX_FLAG_OVERWRITE ? "O" : "", |
1308 | event->aux.flags & PERF_AUX_FLAG_PARTIAL ? "P" : ""); | |
4a96f7a0 AH |
1309 | } |
1310 | ||
0ad21f68 AH |
1311 | size_t perf_event__fprintf_itrace_start(union perf_event *event, FILE *fp) |
1312 | { | |
1313 | return fprintf(fp, " pid: %u tid: %u\n", | |
1314 | event->itrace_start.pid, event->itrace_start.tid); | |
1315 | } | |
1316 | ||
0286039f AH |
1317 | size_t perf_event__fprintf_switch(union perf_event *event, FILE *fp) |
1318 | { | |
1319 | bool out = event->header.misc & PERF_RECORD_MISC_SWITCH_OUT; | |
1320 | const char *in_out = out ? "OUT" : "IN "; | |
1321 | ||
1322 | if (event->header.type == PERF_RECORD_SWITCH) | |
1323 | return fprintf(fp, " %s\n", in_out); | |
1324 | ||
1325 | return fprintf(fp, " %s %s pid/tid: %5u/%-5u\n", | |
1326 | in_out, out ? "next" : "prev", | |
1327 | event->context_switch.next_prev_pid, | |
1328 | event->context_switch.next_prev_tid); | |
1329 | } | |
1330 | ||
482ad897 ACM |
1331 | size_t perf_event__fprintf(union perf_event *event, FILE *fp) |
1332 | { | |
1333 | size_t ret = fprintf(fp, "PERF_RECORD_%s", | |
1334 | perf_event__name(event->header.type)); | |
1335 | ||
1336 | switch (event->header.type) { | |
1337 | case PERF_RECORD_COMM: | |
1338 | ret += perf_event__fprintf_comm(event, fp); | |
1339 | break; | |
1340 | case PERF_RECORD_FORK: | |
1341 | case PERF_RECORD_EXIT: | |
1342 | ret += perf_event__fprintf_task(event, fp); | |
1343 | break; | |
1344 | case PERF_RECORD_MMAP: | |
1345 | ret += perf_event__fprintf_mmap(event, fp); | |
f3b3614a HB |
1346 | break; |
1347 | case PERF_RECORD_NAMESPACES: | |
1348 | ret += perf_event__fprintf_namespaces(event, fp); | |
482ad897 | 1349 | break; |
5c5e854b SE |
1350 | case PERF_RECORD_MMAP2: |
1351 | ret += perf_event__fprintf_mmap2(event, fp); | |
1352 | break; | |
4a96f7a0 AH |
1353 | case PERF_RECORD_AUX: |
1354 | ret += perf_event__fprintf_aux(event, fp); | |
1355 | break; | |
0ad21f68 AH |
1356 | case PERF_RECORD_ITRACE_START: |
1357 | ret += perf_event__fprintf_itrace_start(event, fp); | |
1358 | break; | |
0286039f AH |
1359 | case PERF_RECORD_SWITCH: |
1360 | case PERF_RECORD_SWITCH_CPU_WIDE: | |
1361 | ret += perf_event__fprintf_switch(event, fp); | |
1362 | break; | |
482ad897 ACM |
1363 | default: |
1364 | ret += fprintf(fp, "\n"); | |
1365 | } | |
1366 | ||
1367 | return ret; | |
1368 | } | |
1369 | ||
b0a7d1a0 ACM |
1370 | int perf_event__process(struct perf_tool *tool __maybe_unused, |
1371 | union perf_event *event, | |
162f0bef | 1372 | struct perf_sample *sample, |
b0a7d1a0 | 1373 | struct machine *machine) |
b83f920e | 1374 | { |
162f0bef | 1375 | return machine__process_event(machine, event, sample); |
b83f920e SD |
1376 | } |
1377 | ||
bb871a9c | 1378 | void thread__find_addr_map(struct thread *thread, u8 cpumode, |
743eb868 | 1379 | enum map_type type, u64 addr, |
326f59bf | 1380 | struct addr_location *al) |
1ed091c4 | 1381 | { |
93d5731d | 1382 | struct map_groups *mg = thread->mg; |
bb871a9c | 1383 | struct machine *machine = mg->machine; |
5b7ba82a | 1384 | bool load_map = false; |
1ed091c4 | 1385 | |
cc22e575 | 1386 | al->machine = machine; |
316c7136 | 1387 | al->thread = thread; |
1ed091c4 | 1388 | al->addr = addr; |
a1645ce1 | 1389 | al->cpumode = cpumode; |
b3cef7f6 | 1390 | al->filtered = 0; |
1ed091c4 | 1391 | |
743eb868 ACM |
1392 | if (machine == NULL) { |
1393 | al->map = NULL; | |
1394 | return; | |
1395 | } | |
1396 | ||
a1645ce1 | 1397 | if (cpumode == PERF_RECORD_MISC_KERNEL && perf_host) { |
1ed091c4 | 1398 | al->level = 'k'; |
23346f21 | 1399 | mg = &machine->kmaps; |
5b7ba82a | 1400 | load_map = true; |
a1645ce1 | 1401 | } else if (cpumode == PERF_RECORD_MISC_USER && perf_host) { |
1ed091c4 | 1402 | al->level = '.'; |
a1645ce1 ZY |
1403 | } else if (cpumode == PERF_RECORD_MISC_GUEST_KERNEL && perf_guest) { |
1404 | al->level = 'g'; | |
23346f21 | 1405 | mg = &machine->kmaps; |
5b7ba82a | 1406 | load_map = true; |
fb50bb43 DY |
1407 | } else if (cpumode == PERF_RECORD_MISC_GUEST_USER && perf_guest) { |
1408 | al->level = 'u'; | |
a1645ce1 | 1409 | } else { |
fb50bb43 | 1410 | al->level = 'H'; |
1ed091c4 | 1411 | al->map = NULL; |
a1645ce1 ZY |
1412 | |
1413 | if ((cpumode == PERF_RECORD_MISC_GUEST_USER || | |
1414 | cpumode == PERF_RECORD_MISC_GUEST_KERNEL) && | |
1415 | !perf_guest) | |
b3cef7f6 | 1416 | al->filtered |= (1 << HIST_FILTER__GUEST); |
a1645ce1 ZY |
1417 | if ((cpumode == PERF_RECORD_MISC_USER || |
1418 | cpumode == PERF_RECORD_MISC_KERNEL) && | |
1419 | !perf_host) | |
b3cef7f6 | 1420 | al->filtered |= (1 << HIST_FILTER__HOST); |
a1645ce1 | 1421 | |
1ed091c4 ACM |
1422 | return; |
1423 | } | |
1424 | try_again: | |
9958e1f0 | 1425 | al->map = map_groups__find(mg, type, al->addr); |
1ed091c4 ACM |
1426 | if (al->map == NULL) { |
1427 | /* | |
1428 | * If this is outside of all known maps, and is a negative | |
1429 | * address, try to look it up in the kernel dso, as it might be | |
1430 | * a vsyscall or vdso (which executes in user-mode). | |
1431 | * | |
1432 | * XXX This is nasty, we should have a symbol list in the | |
1433 | * "[vdso]" dso, but for now lets use the old trick of looking | |
1434 | * in the whole kernel symbol list. | |
1435 | */ | |
fbe2af45 AH |
1436 | if (cpumode == PERF_RECORD_MISC_USER && machine && |
1437 | mg != &machine->kmaps && | |
1438 | machine__kernel_ip(machine, al->addr)) { | |
23346f21 | 1439 | mg = &machine->kmaps; |
1f2a7069 | 1440 | load_map = true; |
1ed091c4 ACM |
1441 | goto try_again; |
1442 | } | |
5b7ba82a AH |
1443 | } else { |
1444 | /* | |
1445 | * Kernel maps might be changed when loading symbols so loading | |
1446 | * must be done prior to using kernel maps. | |
1447 | */ | |
1448 | if (load_map) | |
be39db9f | 1449 | map__load(al->map); |
1ed091c4 | 1450 | al->addr = al->map->map_ip(al->map, al->addr); |
5b7ba82a | 1451 | } |
59ee68ec ACM |
1452 | } |
1453 | ||
bb871a9c | 1454 | void thread__find_addr_location(struct thread *thread, |
743eb868 | 1455 | u8 cpumode, enum map_type type, u64 addr, |
61710bde | 1456 | struct addr_location *al) |
59ee68ec | 1457 | { |
bb871a9c | 1458 | thread__find_addr_map(thread, cpumode, type, addr, al); |
59ee68ec | 1459 | if (al->map != NULL) |
be39db9f | 1460 | al->sym = map__find_symbol(al->map, al->addr); |
59ee68ec ACM |
1461 | else |
1462 | al->sym = NULL; | |
1ed091c4 ACM |
1463 | } |
1464 | ||
b91fc39f ACM |
1465 | /* |
1466 | * Callers need to drop the reference to al->thread, obtained in | |
1467 | * machine__findnew_thread() | |
1468 | */ | |
bb3eb566 ACM |
1469 | int machine__resolve(struct machine *machine, struct addr_location *al, |
1470 | struct perf_sample *sample) | |
1ed091c4 | 1471 | { |
ef89325f | 1472 | struct thread *thread = machine__findnew_thread(machine, sample->pid, |
13ce34df | 1473 | sample->tid); |
41a37e20 | 1474 | |
1ed091c4 ACM |
1475 | if (thread == NULL) |
1476 | return -1; | |
1477 | ||
b9c5143a | 1478 | dump_printf(" ... thread: %s:%d\n", thread__comm_str(thread), thread->tid); |
1f626bc3 | 1479 | /* |
743eb868 | 1480 | * Have we already created the kernel maps for this machine? |
1f626bc3 ACM |
1481 | * |
1482 | * This should have happened earlier, when we processed the kernel MMAP | |
1483 | * events, but for older perf.data files there was no such thing, so do | |
1484 | * it now. | |
1485 | */ | |
473398a2 | 1486 | if (sample->cpumode == PERF_RECORD_MISC_KERNEL && |
a5e813c6 | 1487 | machine__kernel_map(machine) == NULL) |
743eb868 | 1488 | machine__create_kernel_maps(machine); |
1ed091c4 | 1489 | |
473398a2 | 1490 | thread__find_addr_map(thread, sample->cpumode, MAP__FUNCTION, sample->ip, al); |
1ed091c4 ACM |
1491 | dump_printf(" ...... dso: %s\n", |
1492 | al->map ? al->map->dso->long_name : | |
1493 | al->level == 'H' ? "[hypervisor]" : "<not found>"); | |
466fa764 NK |
1494 | |
1495 | if (thread__is_filtered(thread)) | |
1496 | al->filtered |= (1 << HIST_FILTER__THREAD); | |
1497 | ||
96415e4d | 1498 | al->sym = NULL; |
8d50e5b4 | 1499 | al->cpu = sample->cpu; |
0c4c4deb KL |
1500 | al->socket = -1; |
1501 | ||
1502 | if (al->cpu >= 0) { | |
1503 | struct perf_env *env = machine->env; | |
1504 | ||
1505 | if (env && env->cpu) | |
1506 | al->socket = env->cpu[al->cpu].socket_id; | |
1507 | } | |
96415e4d ACM |
1508 | |
1509 | if (al->map) { | |
cb8f4e9a NK |
1510 | struct dso *dso = al->map->dso; |
1511 | ||
96415e4d | 1512 | if (symbol_conf.dso_list && |
cb8f4e9a NK |
1513 | (!dso || !(strlist__has_entry(symbol_conf.dso_list, |
1514 | dso->short_name) || | |
1515 | (dso->short_name != dso->long_name && | |
1516 | strlist__has_entry(symbol_conf.dso_list, | |
b3cef7f6 NK |
1517 | dso->long_name))))) { |
1518 | al->filtered |= (1 << HIST_FILTER__DSO); | |
b3cef7f6 | 1519 | } |
96415e4d | 1520 | |
be39db9f | 1521 | al->sym = map__find_symbol(al->map, al->addr); |
96415e4d | 1522 | } |
c410a338 | 1523 | |
1500b93b FT |
1524 | if (symbol_conf.sym_list && |
1525 | (!al->sym || !strlist__has_entry(symbol_conf.sym_list, | |
b3cef7f6 NK |
1526 | al->sym->name))) { |
1527 | al->filtered |= (1 << HIST_FILTER__SYMBOL); | |
b3cef7f6 | 1528 | } |
c410a338 | 1529 | |
c410a338 | 1530 | return 0; |
1ed091c4 | 1531 | } |
9b0d2d87 | 1532 | |
b91fc39f ACM |
1533 | /* |
1534 | * The preprocess_sample method will return with reference counts for the | |
1535 | * in it, when done using (and perhaps getting ref counts if needing to | |
1536 | * keep a pointer to one of those entries) it must be paired with | |
1537 | * addr_location__put(), so that the refcounts can be decremented. | |
1538 | */ | |
1539 | void addr_location__put(struct addr_location *al) | |
1540 | { | |
1541 | thread__zput(al->thread); | |
1542 | } | |
1543 | ||
9b0d2d87 AH |
1544 | bool is_bts_event(struct perf_event_attr *attr) |
1545 | { | |
1546 | return attr->type == PERF_TYPE_HARDWARE && | |
1547 | (attr->config & PERF_COUNT_HW_BRANCH_INSTRUCTIONS) && | |
1548 | attr->sample_period == 1; | |
1549 | } | |
1550 | ||
1551 | bool sample_addr_correlates_sym(struct perf_event_attr *attr) | |
1552 | { | |
1553 | if (attr->type == PERF_TYPE_SOFTWARE && | |
1554 | (attr->config == PERF_COUNT_SW_PAGE_FAULTS || | |
1555 | attr->config == PERF_COUNT_SW_PAGE_FAULTS_MIN || | |
1556 | attr->config == PERF_COUNT_SW_PAGE_FAULTS_MAJ)) | |
1557 | return true; | |
1558 | ||
1559 | if (is_bts_event(attr)) | |
1560 | return true; | |
1561 | ||
1562 | return false; | |
1563 | } | |
1564 | ||
c2740a87 ACM |
1565 | void thread__resolve(struct thread *thread, struct addr_location *al, |
1566 | struct perf_sample *sample) | |
9b0d2d87 | 1567 | { |
473398a2 | 1568 | thread__find_addr_map(thread, sample->cpumode, MAP__FUNCTION, sample->addr, al); |
9b0d2d87 | 1569 | if (!al->map) |
473398a2 | 1570 | thread__find_addr_map(thread, sample->cpumode, MAP__VARIABLE, |
9b0d2d87 AH |
1571 | sample->addr, al); |
1572 | ||
1573 | al->cpu = sample->cpu; | |
1574 | al->sym = NULL; | |
1575 | ||
1576 | if (al->map) | |
be39db9f | 1577 | al->sym = map__find_symbol(al->map, al->addr); |
9b0d2d87 | 1578 | } |