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b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
76b31a29 | 2 | #include <dirent.h> |
a43783ae | 3 | #include <errno.h> |
c23c2a0f | 4 | #include <fcntl.h> |
fd20e811 | 5 | #include <inttypes.h> |
877a7a11 | 6 | #include <linux/kernel.h> |
234fbbf5 | 7 | #include <linux/types.h> |
7a8ef4c4 ACM |
8 | #include <sys/types.h> |
9 | #include <sys/stat.h> | |
10 | #include <unistd.h> | |
16eb8136 | 11 | #include <uapi/linux/mman.h> /* To get things like MAP_HUGETLB even on older libc headers */ |
d7e404af | 12 | #include <api/fs/fs.h> |
5ab8c689 | 13 | #include <linux/perf_event.h> |
234fbbf5 ACM |
14 | #include "event.h" |
15 | #include "debug.h" | |
b3cef7f6 | 16 | #include "hist.h" |
f62d3f0f | 17 | #include "machine.h" |
c410a338 | 18 | #include "sort.h" |
a067558e | 19 | #include "string2.h" |
c410a338 | 20 | #include "strlist.h" |
62daacb5 | 21 | #include "thread.h" |
7c940c18 | 22 | #include "thread_map.h" |
3d689ed6 | 23 | #include "sane_ctype.h" |
c506c96b | 24 | #include "symbol/kallsyms.h" |
67424342 JO |
25 | #include "asm/bug.h" |
26 | #include "stat.h" | |
234fbbf5 | 27 | |
8115d60c | 28 | static const char *perf_event__names[] = { |
3cb6d154 FW |
29 | [0] = "TOTAL", |
30 | [PERF_RECORD_MMAP] = "MMAP", | |
5c5e854b | 31 | [PERF_RECORD_MMAP2] = "MMAP2", |
3cb6d154 FW |
32 | [PERF_RECORD_LOST] = "LOST", |
33 | [PERF_RECORD_COMM] = "COMM", | |
34 | [PERF_RECORD_EXIT] = "EXIT", | |
35 | [PERF_RECORD_THROTTLE] = "THROTTLE", | |
36 | [PERF_RECORD_UNTHROTTLE] = "UNTHROTTLE", | |
37 | [PERF_RECORD_FORK] = "FORK", | |
38 | [PERF_RECORD_READ] = "READ", | |
39 | [PERF_RECORD_SAMPLE] = "SAMPLE", | |
4a96f7a0 | 40 | [PERF_RECORD_AUX] = "AUX", |
0ad21f68 | 41 | [PERF_RECORD_ITRACE_START] = "ITRACE_START", |
c4937a91 | 42 | [PERF_RECORD_LOST_SAMPLES] = "LOST_SAMPLES", |
0286039f AH |
43 | [PERF_RECORD_SWITCH] = "SWITCH", |
44 | [PERF_RECORD_SWITCH_CPU_WIDE] = "SWITCH_CPU_WIDE", | |
f3b3614a | 45 | [PERF_RECORD_NAMESPACES] = "NAMESPACES", |
3cb6d154 FW |
46 | [PERF_RECORD_HEADER_ATTR] = "ATTR", |
47 | [PERF_RECORD_HEADER_EVENT_TYPE] = "EVENT_TYPE", | |
48 | [PERF_RECORD_HEADER_TRACING_DATA] = "TRACING_DATA", | |
49 | [PERF_RECORD_HEADER_BUILD_ID] = "BUILD_ID", | |
50 | [PERF_RECORD_FINISHED_ROUND] = "FINISHED_ROUND", | |
3c659eed | 51 | [PERF_RECORD_ID_INDEX] = "ID_INDEX", |
a16ac023 AH |
52 | [PERF_RECORD_AUXTRACE_INFO] = "AUXTRACE_INFO", |
53 | [PERF_RECORD_AUXTRACE] = "AUXTRACE", | |
e9bf54d2 | 54 | [PERF_RECORD_AUXTRACE_ERROR] = "AUXTRACE_ERROR", |
5f3339d2 | 55 | [PERF_RECORD_THREAD_MAP] = "THREAD_MAP", |
6640b6c2 | 56 | [PERF_RECORD_CPU_MAP] = "CPU_MAP", |
374fb9e3 | 57 | [PERF_RECORD_STAT_CONFIG] = "STAT_CONFIG", |
d80518c9 | 58 | [PERF_RECORD_STAT] = "STAT", |
2d8f0f18 | 59 | [PERF_RECORD_STAT_ROUND] = "STAT_ROUND", |
ffe77725 | 60 | [PERF_RECORD_EVENT_UPDATE] = "EVENT_UPDATE", |
46bc29b9 | 61 | [PERF_RECORD_TIME_CONV] = "TIME_CONV", |
e9def1b2 | 62 | [PERF_RECORD_HEADER_FEATURE] = "FEATURE", |
c8446b9b ACM |
63 | }; |
64 | ||
f3b3614a HB |
65 | static const char *perf_ns__names[] = { |
66 | [NET_NS_INDEX] = "net", | |
67 | [UTS_NS_INDEX] = "uts", | |
68 | [IPC_NS_INDEX] = "ipc", | |
69 | [PID_NS_INDEX] = "pid", | |
70 | [USER_NS_INDEX] = "user", | |
71 | [MNT_NS_INDEX] = "mnt", | |
72 | [CGROUP_NS_INDEX] = "cgroup", | |
73 | }; | |
74 | ||
8115d60c | 75 | const char *perf_event__name(unsigned int id) |
3835bc00 | 76 | { |
8115d60c | 77 | if (id >= ARRAY_SIZE(perf_event__names)) |
3835bc00 | 78 | return "INVALID"; |
8115d60c | 79 | if (!perf_event__names[id]) |
3835bc00 | 80 | return "UNKNOWN"; |
8115d60c | 81 | return perf_event__names[id]; |
3835bc00 TG |
82 | } |
83 | ||
f3b3614a HB |
84 | static const char *perf_ns__name(unsigned int id) |
85 | { | |
86 | if (id >= ARRAY_SIZE(perf_ns__names)) | |
87 | return "UNKNOWN"; | |
88 | return perf_ns__names[id]; | |
89 | } | |
90 | ||
a8ce99b0 AH |
91 | int perf_tool__process_synth_event(struct perf_tool *tool, |
92 | union perf_event *event, | |
93 | struct machine *machine, | |
94 | perf_event__handler_t process) | |
3ea223ad ACM |
95 | { |
96 | struct perf_sample synth_sample = { | |
640c03ce ACM |
97 | .pid = -1, |
98 | .tid = -1, | |
99 | .time = -1, | |
100 | .stream_id = -1, | |
101 | .cpu = -1, | |
102 | .period = 1, | |
3ea223ad ACM |
103 | .cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK, |
104 | }; | |
105 | ||
106 | return process(tool, event, &synth_sample, machine); | |
640c03ce ACM |
107 | }; |
108 | ||
5aa0b030 DA |
109 | /* |
110 | * Assumes that the first 4095 bytes of /proc/pid/stat contains | |
ca6c41c5 | 111 | * the comm, tgid and ppid. |
5aa0b030 | 112 | */ |
ca6c41c5 DA |
113 | static int perf_event__get_comm_ids(pid_t pid, char *comm, size_t len, |
114 | pid_t *tgid, pid_t *ppid) | |
234fbbf5 | 115 | { |
234fbbf5 | 116 | char filename[PATH_MAX]; |
5aa0b030 DA |
117 | char bf[4096]; |
118 | int fd; | |
38349665 AH |
119 | size_t size = 0; |
120 | ssize_t n; | |
bdd97ca6 | 121 | char *name, *tgids, *ppids; |
ca6c41c5 DA |
122 | |
123 | *tgid = -1; | |
124 | *ppid = -1; | |
234fbbf5 ACM |
125 | |
126 | snprintf(filename, sizeof(filename), "/proc/%d/status", pid); | |
127 | ||
5aa0b030 DA |
128 | fd = open(filename, O_RDONLY); |
129 | if (fd < 0) { | |
234fbbf5 | 130 | pr_debug("couldn't open %s\n", filename); |
ca6c41c5 | 131 | return -1; |
234fbbf5 ACM |
132 | } |
133 | ||
5aa0b030 DA |
134 | n = read(fd, bf, sizeof(bf) - 1); |
135 | close(fd); | |
136 | if (n <= 0) { | |
ca6c41c5 | 137 | pr_warning("Couldn't get COMM, tigd and ppid for pid %d\n", |
5aa0b030 DA |
138 | pid); |
139 | return -1; | |
234fbbf5 | 140 | } |
5aa0b030 | 141 | bf[n] = '\0'; |
234fbbf5 | 142 | |
5aa0b030 DA |
143 | name = strstr(bf, "Name:"); |
144 | tgids = strstr(bf, "Tgid:"); | |
ca6c41c5 | 145 | ppids = strstr(bf, "PPid:"); |
5aa0b030 DA |
146 | |
147 | if (name) { | |
9d43f5e8 JO |
148 | char *nl; |
149 | ||
5aa0b030 | 150 | name += 5; /* strlen("Name:") */ |
9d43f5e8 JO |
151 | name = ltrim(name); |
152 | ||
153 | nl = strchr(name, '\n'); | |
154 | if (nl) | |
155 | *nl = '\0'; | |
156 | ||
5aa0b030 DA |
157 | size = strlen(name); |
158 | if (size >= len) | |
159 | size = len - 1; | |
160 | memcpy(comm, name, size); | |
161 | comm[size] = '\0'; | |
162 | } else { | |
163 | pr_debug("Name: string not found for pid %d\n", pid); | |
164 | } | |
165 | ||
166 | if (tgids) { | |
167 | tgids += 5; /* strlen("Tgid:") */ | |
ca6c41c5 | 168 | *tgid = atoi(tgids); |
5aa0b030 DA |
169 | } else { |
170 | pr_debug("Tgid: string not found for pid %d\n", pid); | |
171 | } | |
f5faf726 | 172 | |
ca6c41c5 DA |
173 | if (ppids) { |
174 | ppids += 5; /* strlen("PPid:") */ | |
175 | *ppid = atoi(ppids); | |
176 | } else { | |
177 | pr_debug("PPid: string not found for pid %d\n", pid); | |
178 | } | |
179 | ||
180 | return 0; | |
f5faf726 DA |
181 | } |
182 | ||
ca6c41c5 DA |
183 | static int perf_event__prepare_comm(union perf_event *event, pid_t pid, |
184 | struct machine *machine, | |
185 | pid_t *tgid, pid_t *ppid) | |
f5faf726 | 186 | { |
f5faf726 | 187 | size_t size; |
ca6c41c5 DA |
188 | |
189 | *ppid = -1; | |
f5faf726 DA |
190 | |
191 | memset(&event->comm, 0, sizeof(event->comm)); | |
192 | ||
ca6c41c5 DA |
193 | if (machine__is_host(machine)) { |
194 | if (perf_event__get_comm_ids(pid, event->comm.comm, | |
195 | sizeof(event->comm.comm), | |
196 | tgid, ppid) != 0) { | |
197 | return -1; | |
198 | } | |
199 | } else { | |
200 | *tgid = machine->pid; | |
201 | } | |
f5db57c4 | 202 | |
ca6c41c5 DA |
203 | if (*tgid < 0) |
204 | return -1; | |
f5faf726 | 205 | |
ca6c41c5 | 206 | event->comm.pid = *tgid; |
9c90a61c | 207 | event->comm.header.type = PERF_RECORD_COMM; |
f5faf726 DA |
208 | |
209 | size = strlen(event->comm.comm) + 1; | |
9ac3e487 | 210 | size = PERF_ALIGN(size, sizeof(u64)); |
743eb868 | 211 | memset(event->comm.comm + size, 0, machine->id_hdr_size); |
9c90a61c ACM |
212 | event->comm.header.size = (sizeof(event->comm) - |
213 | (sizeof(event->comm.comm) - size) + | |
743eb868 | 214 | machine->id_hdr_size); |
bfd66cc7 | 215 | event->comm.tid = pid; |
ca6c41c5 DA |
216 | |
217 | return 0; | |
4aa5f4f7 ACM |
218 | } |
219 | ||
e803cf97 | 220 | pid_t perf_event__synthesize_comm(struct perf_tool *tool, |
4aa5f4f7 ACM |
221 | union perf_event *event, pid_t pid, |
222 | perf_event__handler_t process, | |
223 | struct machine *machine) | |
224 | { | |
ca6c41c5 | 225 | pid_t tgid, ppid; |
4aa5f4f7 | 226 | |
ca6c41c5 DA |
227 | if (perf_event__prepare_comm(event, pid, machine, &tgid, &ppid) != 0) |
228 | return -1; | |
f5faf726 | 229 | |
3ea223ad | 230 | if (perf_tool__process_synth_event(tool, event, machine, process) != 0) |
bfd66cc7 | 231 | return -1; |
234fbbf5 | 232 | |
9c90a61c | 233 | return tgid; |
234fbbf5 ACM |
234 | } |
235 | ||
e907caf3 HB |
236 | static void perf_event__get_ns_link_info(pid_t pid, const char *ns, |
237 | struct perf_ns_link_info *ns_link_info) | |
238 | { | |
239 | struct stat64 st; | |
240 | char proc_ns[128]; | |
241 | ||
242 | sprintf(proc_ns, "/proc/%u/ns/%s", pid, ns); | |
243 | if (stat64(proc_ns, &st) == 0) { | |
244 | ns_link_info->dev = st.st_dev; | |
245 | ns_link_info->ino = st.st_ino; | |
246 | } | |
247 | } | |
248 | ||
249 | int perf_event__synthesize_namespaces(struct perf_tool *tool, | |
250 | union perf_event *event, | |
251 | pid_t pid, pid_t tgid, | |
252 | perf_event__handler_t process, | |
253 | struct machine *machine) | |
254 | { | |
255 | u32 idx; | |
256 | struct perf_ns_link_info *ns_link_info; | |
257 | ||
258 | if (!tool || !tool->namespace_events) | |
259 | return 0; | |
260 | ||
261 | memset(&event->namespaces, 0, (sizeof(event->namespaces) + | |
262 | (NR_NAMESPACES * sizeof(struct perf_ns_link_info)) + | |
263 | machine->id_hdr_size)); | |
264 | ||
265 | event->namespaces.pid = tgid; | |
266 | event->namespaces.tid = pid; | |
267 | ||
268 | event->namespaces.nr_namespaces = NR_NAMESPACES; | |
269 | ||
270 | ns_link_info = event->namespaces.link_info; | |
271 | ||
272 | for (idx = 0; idx < event->namespaces.nr_namespaces; idx++) | |
273 | perf_event__get_ns_link_info(pid, perf_ns__name(idx), | |
274 | &ns_link_info[idx]); | |
275 | ||
276 | event->namespaces.header.type = PERF_RECORD_NAMESPACES; | |
277 | ||
278 | event->namespaces.header.size = (sizeof(event->namespaces) + | |
279 | (NR_NAMESPACES * sizeof(struct perf_ns_link_info)) + | |
280 | machine->id_hdr_size); | |
281 | ||
282 | if (perf_tool__process_synth_event(tool, event, machine, process) != 0) | |
283 | return -1; | |
284 | ||
285 | return 0; | |
286 | } | |
287 | ||
363b785f | 288 | static int perf_event__synthesize_fork(struct perf_tool *tool, |
ca6c41c5 DA |
289 | union perf_event *event, |
290 | pid_t pid, pid_t tgid, pid_t ppid, | |
291 | perf_event__handler_t process, | |
363b785f DZ |
292 | struct machine *machine) |
293 | { | |
294 | memset(&event->fork, 0, sizeof(event->fork) + machine->id_hdr_size); | |
295 | ||
7764a385 DA |
296 | /* |
297 | * for main thread set parent to ppid from status file. For other | |
298 | * threads set parent pid to main thread. ie., assume main thread | |
299 | * spawns all threads in a process | |
300 | */ | |
301 | if (tgid == pid) { | |
302 | event->fork.ppid = ppid; | |
303 | event->fork.ptid = ppid; | |
304 | } else { | |
305 | event->fork.ppid = tgid; | |
306 | event->fork.ptid = tgid; | |
307 | } | |
363b785f DZ |
308 | event->fork.pid = tgid; |
309 | event->fork.tid = pid; | |
310 | event->fork.header.type = PERF_RECORD_FORK; | |
311 | ||
312 | event->fork.header.size = (sizeof(event->fork) + machine->id_hdr_size); | |
313 | ||
3ea223ad | 314 | if (perf_tool__process_synth_event(tool, event, machine, process) != 0) |
363b785f DZ |
315 | return -1; |
316 | ||
317 | return 0; | |
318 | } | |
319 | ||
a18382b6 JO |
320 | int perf_event__synthesize_mmap_events(struct perf_tool *tool, |
321 | union perf_event *event, | |
322 | pid_t pid, pid_t tgid, | |
323 | perf_event__handler_t process, | |
324 | struct machine *machine, | |
9d9cad76 KL |
325 | bool mmap_data, |
326 | unsigned int proc_map_timeout) | |
234fbbf5 ACM |
327 | { |
328 | char filename[PATH_MAX]; | |
329 | FILE *fp; | |
930e6fcd KL |
330 | unsigned long long t; |
331 | bool truncation = false; | |
9d9cad76 | 332 | unsigned long long timeout = proc_map_timeout * 1000000ULL; |
1e6d5322 | 333 | int rc = 0; |
d7e404af WN |
334 | const char *hugetlbfs_mnt = hugetlbfs__mountpoint(); |
335 | int hugetlbfs_mnt_len = hugetlbfs_mnt ? strlen(hugetlbfs_mnt) : 0; | |
234fbbf5 | 336 | |
c239c25a DY |
337 | if (machine__is_default_guest(machine)) |
338 | return 0; | |
339 | ||
88b897a3 SE |
340 | snprintf(filename, sizeof(filename), "%s/proc/%d/task/%d/maps", |
341 | machine->root_dir, pid, pid); | |
234fbbf5 ACM |
342 | |
343 | fp = fopen(filename, "r"); | |
344 | if (fp == NULL) { | |
345 | /* | |
346 | * We raced with a task exiting - just return: | |
347 | */ | |
348 | pr_debug("couldn't open %s\n", filename); | |
349 | return -1; | |
350 | } | |
351 | ||
a5a5ba72 | 352 | event->header.type = PERF_RECORD_MMAP2; |
930e6fcd | 353 | t = rdclock(); |
9c90a61c | 354 | |
234fbbf5 | 355 | while (1) { |
60648033 NK |
356 | char bf[BUFSIZ]; |
357 | char prot[5]; | |
358 | char execname[PATH_MAX]; | |
359 | char anonstr[] = "//anon"; | |
a5a5ba72 | 360 | unsigned int ino; |
234fbbf5 | 361 | size_t size; |
5c5e854b | 362 | ssize_t n; |
60648033 | 363 | |
234fbbf5 ACM |
364 | if (fgets(bf, sizeof(bf), fp) == NULL) |
365 | break; | |
366 | ||
9d9cad76 KL |
367 | if ((rdclock() - t) > timeout) { |
368 | pr_warning("Reading %s time out. " | |
369 | "You may want to increase " | |
370 | "the time limit by --proc-map-timeout\n", | |
371 | filename); | |
930e6fcd KL |
372 | truncation = true; |
373 | goto out; | |
374 | } | |
375 | ||
60648033 NK |
376 | /* ensure null termination since stack will be reused. */ |
377 | strcpy(execname, ""); | |
378 | ||
234fbbf5 | 379 | /* 00400000-0040c000 r-xp 00000000 fd:01 41038 /bin/cat */ |
89fee59b | 380 | n = sscanf(bf, "%"PRIx64"-%"PRIx64" %s %"PRIx64" %x:%x %u %[^\n]\n", |
a5a5ba72 DZ |
381 | &event->mmap2.start, &event->mmap2.len, prot, |
382 | &event->mmap2.pgoff, &event->mmap2.maj, | |
383 | &event->mmap2.min, | |
384 | &ino, execname); | |
385 | ||
9d4ecc88 DZ |
386 | /* |
387 | * Anon maps don't have the execname. | |
388 | */ | |
a5a5ba72 | 389 | if (n < 7) |
5c5e854b | 390 | continue; |
a5a5ba72 DZ |
391 | |
392 | event->mmap2.ino = (u64)ino; | |
393 | ||
62605dc5 ACM |
394 | /* |
395 | * Just like the kernel, see __perf_event_mmap in kernel/perf_event.c | |
396 | */ | |
73547aac DY |
397 | if (machine__is_host(machine)) |
398 | event->header.misc = PERF_RECORD_MISC_USER; | |
399 | else | |
400 | event->header.misc = PERF_RECORD_MISC_GUEST_USER; | |
60648033 | 401 | |
7ef80703 DZ |
402 | /* map protection and flags bits */ |
403 | event->mmap2.prot = 0; | |
404 | event->mmap2.flags = 0; | |
405 | if (prot[0] == 'r') | |
406 | event->mmap2.prot |= PROT_READ; | |
407 | if (prot[1] == 'w') | |
408 | event->mmap2.prot |= PROT_WRITE; | |
409 | if (prot[2] == 'x') | |
410 | event->mmap2.prot |= PROT_EXEC; | |
411 | ||
412 | if (prot[3] == 's') | |
413 | event->mmap2.flags |= MAP_SHARED; | |
414 | else | |
415 | event->mmap2.flags |= MAP_PRIVATE; | |
416 | ||
62605dc5 ACM |
417 | if (prot[2] != 'x') { |
418 | if (!mmap_data || prot[0] != 'r') | |
419 | continue; | |
420 | ||
421 | event->header.misc |= PERF_RECORD_MISC_MMAP_DATA; | |
422 | } | |
60648033 | 423 | |
930e6fcd KL |
424 | out: |
425 | if (truncation) | |
426 | event->header.misc |= PERF_RECORD_MISC_PROC_MAP_PARSE_TIMEOUT; | |
427 | ||
60648033 NK |
428 | if (!strcmp(execname, "")) |
429 | strcpy(execname, anonstr); | |
fbef103f | 430 | |
973186ca AH |
431 | if (hugetlbfs_mnt_len && |
432 | !strncmp(execname, hugetlbfs_mnt, hugetlbfs_mnt_len)) { | |
d7e404af WN |
433 | strcpy(execname, anonstr); |
434 | event->mmap2.flags |= MAP_HUGETLB; | |
435 | } | |
60648033 NK |
436 | |
437 | size = strlen(execname) + 1; | |
a5a5ba72 | 438 | memcpy(event->mmap2.filename, execname, size); |
60648033 | 439 | size = PERF_ALIGN(size, sizeof(u64)); |
a5a5ba72 DZ |
440 | event->mmap2.len -= event->mmap.start; |
441 | event->mmap2.header.size = (sizeof(event->mmap2) - | |
442 | (sizeof(event->mmap2.filename) - size)); | |
443 | memset(event->mmap2.filename + size, 0, machine->id_hdr_size); | |
444 | event->mmap2.header.size += machine->id_hdr_size; | |
445 | event->mmap2.pid = tgid; | |
446 | event->mmap2.tid = pid; | |
60648033 | 447 | |
3ea223ad | 448 | if (perf_tool__process_synth_event(tool, event, machine, process) != 0) { |
60648033 NK |
449 | rc = -1; |
450 | break; | |
234fbbf5 | 451 | } |
930e6fcd KL |
452 | |
453 | if (truncation) | |
454 | break; | |
234fbbf5 ACM |
455 | } |
456 | ||
457 | fclose(fp); | |
1e6d5322 | 458 | return rc; |
234fbbf5 ACM |
459 | } |
460 | ||
45694aa7 | 461 | int perf_event__synthesize_modules(struct perf_tool *tool, |
d20deb64 | 462 | perf_event__handler_t process, |
8115d60c | 463 | struct machine *machine) |
b7cece76 | 464 | { |
1e6d5322 | 465 | int rc = 0; |
4bb7123d | 466 | struct map *pos; |
68a74186 | 467 | struct maps *maps = machine__kernel_maps(machine); |
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 | |
5759a682 | 490 | if (!__map__is_kmodule(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 | ||
e5adfc3e KK |
544 | /* |
545 | * send mmap only for thread group leader | |
546 | * see thread__init_map_groups | |
547 | */ | |
548 | if (pid == tgid && | |
549 | perf_event__synthesize_mmap_events(tool, mmap_event, pid, tgid, | |
550 | process, machine, mmap_data, | |
551 | proc_map_timeout)) | |
552 | return -1; | |
e907caf3 | 553 | |
e5adfc3e | 554 | return 0; |
bfd66cc7 DZ |
555 | } |
556 | ||
557 | if (machine__is_default_guest(machine)) | |
558 | return 0; | |
559 | ||
560 | snprintf(filename, sizeof(filename), "%s/proc/%d/task", | |
561 | machine->root_dir, pid); | |
562 | ||
563 | tasks = opendir(filename); | |
564 | if (tasks == NULL) { | |
565 | pr_debug("couldn't open %s\n", filename); | |
566 | return 0; | |
567 | } | |
568 | ||
7093b4c9 | 569 | while ((dirent = readdir(tasks)) != NULL) { |
bfd66cc7 | 570 | char *end; |
bfd66cc7 DZ |
571 | pid_t _pid; |
572 | ||
7093b4c9 | 573 | _pid = strtol(dirent->d_name, &end, 10); |
bfd66cc7 DZ |
574 | if (*end) |
575 | continue; | |
576 | ||
d998b732 | 577 | rc = -1; |
ca6c41c5 DA |
578 | if (perf_event__prepare_comm(comm_event, _pid, machine, |
579 | &tgid, &ppid) != 0) | |
d998b732 | 580 | break; |
bfd66cc7 | 581 | |
4aa5f4f7 | 582 | if (perf_event__synthesize_fork(tool, fork_event, _pid, tgid, |
ca6c41c5 | 583 | ppid, process, machine) < 0) |
d998b732 | 584 | break; |
e907caf3 HB |
585 | |
586 | if (perf_event__synthesize_namespaces(tool, namespaces_event, _pid, | |
587 | tgid, process, machine) < 0) | |
588 | break; | |
589 | ||
4aa5f4f7 ACM |
590 | /* |
591 | * Send the prepared comm event | |
592 | */ | |
3ea223ad | 593 | if (perf_tool__process_synth_event(tool, comm_event, machine, process) != 0) |
d998b732 | 594 | break; |
4aa5f4f7 | 595 | |
d998b732 | 596 | rc = 0; |
363b785f DZ |
597 | if (_pid == pid) { |
598 | /* process the parent's maps too */ | |
599 | rc = perf_event__synthesize_mmap_events(tool, mmap_event, pid, tgid, | |
9d9cad76 | 600 | process, machine, mmap_data, proc_map_timeout); |
d998b732 ACM |
601 | if (rc) |
602 | break; | |
363b785f | 603 | } |
bfd66cc7 DZ |
604 | } |
605 | ||
606 | closedir(tasks); | |
d998b732 | 607 | return rc; |
234fbbf5 ACM |
608 | } |
609 | ||
45694aa7 | 610 | int perf_event__synthesize_thread_map(struct perf_tool *tool, |
d20deb64 | 611 | struct thread_map *threads, |
7c940c18 | 612 | perf_event__handler_t process, |
62605dc5 | 613 | struct machine *machine, |
9d9cad76 KL |
614 | bool mmap_data, |
615 | unsigned int proc_map_timeout) | |
9c90a61c | 616 | { |
363b785f | 617 | union perf_event *comm_event, *mmap_event, *fork_event; |
e907caf3 | 618 | union perf_event *namespaces_event; |
defd8d38 | 619 | int err = -1, thread, j; |
9c90a61c | 620 | |
743eb868 | 621 | comm_event = malloc(sizeof(comm_event->comm) + machine->id_hdr_size); |
9c90a61c ACM |
622 | if (comm_event == NULL) |
623 | goto out; | |
624 | ||
b0fb978e | 625 | mmap_event = malloc(sizeof(mmap_event->mmap2) + machine->id_hdr_size); |
9c90a61c ACM |
626 | if (mmap_event == NULL) |
627 | goto out_free_comm; | |
628 | ||
363b785f DZ |
629 | fork_event = malloc(sizeof(fork_event->fork) + machine->id_hdr_size); |
630 | if (fork_event == NULL) | |
631 | goto out_free_mmap; | |
632 | ||
e907caf3 HB |
633 | namespaces_event = malloc(sizeof(namespaces_event->namespaces) + |
634 | (NR_NAMESPACES * sizeof(struct perf_ns_link_info)) + | |
635 | machine->id_hdr_size); | |
636 | if (namespaces_event == NULL) | |
637 | goto out_free_fork; | |
638 | ||
401b8e13 ACM |
639 | err = 0; |
640 | for (thread = 0; thread < threads->nr; ++thread) { | |
641 | if (__event__synthesize_thread(comm_event, mmap_event, | |
e907caf3 | 642 | fork_event, namespaces_event, |
e13798c7 | 643 | thread_map__pid(threads, thread), 0, |
62605dc5 | 644 | process, tool, machine, |
9d9cad76 | 645 | mmap_data, proc_map_timeout)) { |
401b8e13 ACM |
646 | err = -1; |
647 | break; | |
648 | } | |
defd8d38 DA |
649 | |
650 | /* | |
651 | * comm.pid is set to thread group id by | |
652 | * perf_event__synthesize_comm | |
653 | */ | |
e13798c7 | 654 | if ((int) comm_event->comm.pid != thread_map__pid(threads, thread)) { |
defd8d38 DA |
655 | bool need_leader = true; |
656 | ||
657 | /* is thread group leader in thread_map? */ | |
658 | for (j = 0; j < threads->nr; ++j) { | |
e13798c7 | 659 | if ((int) comm_event->comm.pid == thread_map__pid(threads, j)) { |
defd8d38 DA |
660 | need_leader = false; |
661 | break; | |
662 | } | |
663 | } | |
664 | ||
665 | /* if not, generate events for it */ | |
666 | if (need_leader && | |
62605dc5 | 667 | __event__synthesize_thread(comm_event, mmap_event, |
e907caf3 | 668 | fork_event, namespaces_event, |
62605dc5 ACM |
669 | comm_event->comm.pid, 0, |
670 | process, tool, machine, | |
9d9cad76 | 671 | mmap_data, proc_map_timeout)) { |
defd8d38 DA |
672 | err = -1; |
673 | break; | |
674 | } | |
675 | } | |
401b8e13 | 676 | } |
e907caf3 HB |
677 | free(namespaces_event); |
678 | out_free_fork: | |
363b785f DZ |
679 | free(fork_event); |
680 | out_free_mmap: | |
9c90a61c ACM |
681 | free(mmap_event); |
682 | out_free_comm: | |
683 | free(comm_event); | |
684 | out: | |
685 | return err; | |
686 | } | |
687 | ||
340b47f5 KL |
688 | static int __perf_event__synthesize_threads(struct perf_tool *tool, |
689 | perf_event__handler_t process, | |
690 | struct machine *machine, | |
691 | bool mmap_data, | |
692 | unsigned int proc_map_timeout, | |
693 | struct dirent **dirent, | |
694 | int start, | |
695 | int num) | |
234fbbf5 | 696 | { |
363b785f | 697 | union perf_event *comm_event, *mmap_event, *fork_event; |
e907caf3 | 698 | union perf_event *namespaces_event; |
9c90a61c | 699 | int err = -1; |
ecdad24d KL |
700 | char *end; |
701 | pid_t pid; | |
340b47f5 | 702 | int i; |
574799bf | 703 | |
743eb868 | 704 | comm_event = malloc(sizeof(comm_event->comm) + machine->id_hdr_size); |
9c90a61c ACM |
705 | if (comm_event == NULL) |
706 | goto out; | |
707 | ||
b0fb978e | 708 | mmap_event = malloc(sizeof(mmap_event->mmap2) + machine->id_hdr_size); |
9c90a61c ACM |
709 | if (mmap_event == NULL) |
710 | goto out_free_comm; | |
234fbbf5 | 711 | |
363b785f DZ |
712 | fork_event = malloc(sizeof(fork_event->fork) + machine->id_hdr_size); |
713 | if (fork_event == NULL) | |
714 | goto out_free_mmap; | |
715 | ||
e907caf3 HB |
716 | namespaces_event = malloc(sizeof(namespaces_event->namespaces) + |
717 | (NR_NAMESPACES * sizeof(struct perf_ns_link_info)) + | |
718 | machine->id_hdr_size); | |
719 | if (namespaces_event == NULL) | |
720 | goto out_free_fork; | |
721 | ||
340b47f5 | 722 | for (i = start; i < start + num; i++) { |
ecdad24d | 723 | if (!isdigit(dirent[i]->d_name[0])) |
234fbbf5 | 724 | continue; |
234fbbf5 | 725 | |
ecdad24d KL |
726 | pid = (pid_t)strtol(dirent[i]->d_name, &end, 10); |
727 | /* only interested in proper numerical dirents */ | |
340b47f5 KL |
728 | if (*end) |
729 | continue; | |
730 | /* | |
731 | * We may race with exiting thread, so don't stop just because | |
732 | * one thread couldn't be synthesized. | |
733 | */ | |
734 | __event__synthesize_thread(comm_event, mmap_event, fork_event, | |
735 | namespaces_event, pid, 1, process, | |
736 | tool, machine, mmap_data, | |
737 | proc_map_timeout); | |
ecdad24d | 738 | } |
9c90a61c | 739 | err = 0; |
ecdad24d | 740 | |
e907caf3 | 741 | free(namespaces_event); |
363b785f DZ |
742 | out_free_fork: |
743 | free(fork_event); | |
9c90a61c ACM |
744 | out_free_mmap: |
745 | free(mmap_event); | |
746 | out_free_comm: | |
747 | free(comm_event); | |
748 | out: | |
749 | return err; | |
234fbbf5 | 750 | } |
62daacb5 | 751 | |
340b47f5 KL |
752 | struct synthesize_threads_arg { |
753 | struct perf_tool *tool; | |
754 | perf_event__handler_t process; | |
755 | struct machine *machine; | |
756 | bool mmap_data; | |
757 | unsigned int proc_map_timeout; | |
758 | struct dirent **dirent; | |
759 | int num; | |
760 | int start; | |
761 | }; | |
762 | ||
763 | static void *synthesize_threads_worker(void *arg) | |
764 | { | |
765 | struct synthesize_threads_arg *args = arg; | |
766 | ||
767 | __perf_event__synthesize_threads(args->tool, args->process, | |
768 | args->machine, args->mmap_data, | |
769 | args->proc_map_timeout, args->dirent, | |
770 | args->start, args->num); | |
771 | return NULL; | |
772 | } | |
773 | ||
774 | int perf_event__synthesize_threads(struct perf_tool *tool, | |
775 | perf_event__handler_t process, | |
776 | struct machine *machine, | |
777 | bool mmap_data, | |
778 | unsigned int proc_map_timeout, | |
779 | unsigned int nr_threads_synthesize) | |
780 | { | |
781 | struct synthesize_threads_arg *args = NULL; | |
782 | pthread_t *synthesize_threads = NULL; | |
783 | char proc_path[PATH_MAX]; | |
784 | struct dirent **dirent; | |
785 | int num_per_thread; | |
786 | int m, n, i, j; | |
787 | int thread_nr; | |
788 | int base = 0; | |
789 | int err = -1; | |
790 | ||
791 | ||
792 | if (machine__is_default_guest(machine)) | |
793 | return 0; | |
794 | ||
795 | snprintf(proc_path, sizeof(proc_path), "%s/proc", machine->root_dir); | |
796 | n = scandir(proc_path, &dirent, 0, alphasort); | |
797 | if (n < 0) | |
798 | return err; | |
799 | ||
0c6b4994 KL |
800 | if (nr_threads_synthesize == UINT_MAX) |
801 | thread_nr = sysconf(_SC_NPROCESSORS_ONLN); | |
802 | else | |
803 | thread_nr = nr_threads_synthesize; | |
340b47f5 KL |
804 | |
805 | if (thread_nr <= 1) { | |
806 | err = __perf_event__synthesize_threads(tool, process, | |
807 | machine, mmap_data, | |
808 | proc_map_timeout, | |
809 | dirent, base, n); | |
810 | goto free_dirent; | |
811 | } | |
812 | if (thread_nr > n) | |
813 | thread_nr = n; | |
814 | ||
815 | synthesize_threads = calloc(sizeof(pthread_t), thread_nr); | |
816 | if (synthesize_threads == NULL) | |
817 | goto free_dirent; | |
818 | ||
819 | args = calloc(sizeof(*args), thread_nr); | |
820 | if (args == NULL) | |
821 | goto free_threads; | |
822 | ||
823 | num_per_thread = n / thread_nr; | |
824 | m = n % thread_nr; | |
825 | for (i = 0; i < thread_nr; i++) { | |
826 | args[i].tool = tool; | |
827 | args[i].process = process; | |
828 | args[i].machine = machine; | |
829 | args[i].mmap_data = mmap_data; | |
830 | args[i].proc_map_timeout = proc_map_timeout; | |
831 | args[i].dirent = dirent; | |
832 | } | |
833 | for (i = 0; i < m; i++) { | |
834 | args[i].num = num_per_thread + 1; | |
835 | args[i].start = i * args[i].num; | |
836 | } | |
837 | if (i != 0) | |
838 | base = args[i-1].start + args[i-1].num; | |
839 | for (j = i; j < thread_nr; j++) { | |
840 | args[j].num = num_per_thread; | |
841 | args[j].start = base + (j - i) * args[i].num; | |
842 | } | |
843 | ||
844 | for (i = 0; i < thread_nr; i++) { | |
845 | if (pthread_create(&synthesize_threads[i], NULL, | |
846 | synthesize_threads_worker, &args[i])) | |
847 | goto out_join; | |
848 | } | |
849 | err = 0; | |
850 | out_join: | |
851 | for (i = 0; i < thread_nr; i++) | |
852 | pthread_join(synthesize_threads[i], NULL); | |
853 | free(args); | |
854 | free_threads: | |
855 | free(synthesize_threads); | |
856 | free_dirent: | |
857 | for (i = 0; i < n; i++) | |
858 | free(dirent[i]); | |
859 | free(dirent); | |
860 | ||
861 | return err; | |
862 | } | |
863 | ||
56b03f3c ACM |
864 | struct process_symbol_args { |
865 | const char *name; | |
866 | u64 start; | |
867 | }; | |
868 | ||
3b01a413 | 869 | static int find_symbol_cb(void *arg, const char *name, char type, |
82151520 | 870 | u64 start) |
56b03f3c ACM |
871 | { |
872 | struct process_symbol_args *args = arg; | |
873 | ||
881516eb ACM |
874 | /* |
875 | * Must be a function or at least an alias, as in PARISC64, where "_text" is | |
876 | * an 'A' to the same address as "_stext". | |
877 | */ | |
e85e0e0c | 878 | if (!(kallsyms__is_function(type) || |
881516eb | 879 | type == 'A') || strcmp(name, args->name)) |
56b03f3c ACM |
880 | return 0; |
881 | ||
882 | args->start = start; | |
883 | return 1; | |
884 | } | |
885 | ||
b843f62a ACM |
886 | int kallsyms__get_function_start(const char *kallsyms_filename, |
887 | const char *symbol_name, u64 *addr) | |
29b596b5 AH |
888 | { |
889 | struct process_symbol_args args = { .name = symbol_name, }; | |
890 | ||
891 | if (kallsyms__parse(kallsyms_filename, &args, find_symbol_cb) <= 0) | |
b843f62a | 892 | return -1; |
29b596b5 | 893 | |
b843f62a ACM |
894 | *addr = args.start; |
895 | return 0; | |
29b596b5 AH |
896 | } |
897 | ||
a8ce99b0 AH |
898 | int __weak perf_event__synthesize_extra_kmaps(struct perf_tool *tool __maybe_unused, |
899 | perf_event__handler_t process __maybe_unused, | |
900 | struct machine *machine __maybe_unused) | |
901 | { | |
902 | return 0; | |
903 | } | |
904 | ||
905 | static int __perf_event__synthesize_kernel_mmap(struct perf_tool *tool, | |
906 | perf_event__handler_t process, | |
907 | struct machine *machine) | |
56b03f3c ACM |
908 | { |
909 | size_t size; | |
a5e813c6 | 910 | struct map *map = machine__kernel_map(machine); |
0ae617be | 911 | struct kmap *kmap; |
9c90a61c | 912 | int err; |
a5c2a4c9 AK |
913 | union perf_event *event; |
914 | ||
3dc6c1d5 WN |
915 | if (symbol_conf.kptr_restrict) |
916 | return -1; | |
77e65977 | 917 | if (map == NULL) |
a5c2a4c9 AK |
918 | return -1; |
919 | ||
56b03f3c ACM |
920 | /* |
921 | * We should get this from /sys/kernel/sections/.text, but till that is | |
922 | * available use this, and after it is use this as a fallback for older | |
923 | * kernels. | |
924 | */ | |
a5c2a4c9 | 925 | event = zalloc((sizeof(event->mmap) + machine->id_hdr_size)); |
9c90a61c ACM |
926 | if (event == NULL) { |
927 | pr_debug("Not enough memory synthesizing mmap event " | |
928 | "for kernel modules\n"); | |
929 | return -1; | |
930 | } | |
56b03f3c | 931 | |
23346f21 | 932 | if (machine__is_host(machine)) { |
a1645ce1 ZY |
933 | /* |
934 | * kernel uses PERF_RECORD_MISC_USER for user space maps, | |
935 | * see kernel/perf_event.c __perf_event_mmap | |
936 | */ | |
9c90a61c | 937 | event->header.misc = PERF_RECORD_MISC_KERNEL; |
a1645ce1 | 938 | } else { |
9c90a61c | 939 | event->header.misc = PERF_RECORD_MISC_GUEST_KERNEL; |
0b9e01a4 | 940 | } |
56b03f3c | 941 | |
0ae617be | 942 | kmap = map__kmap(map); |
9c90a61c | 943 | size = snprintf(event->mmap.filename, sizeof(event->mmap.filename), |
8c7f1bb3 | 944 | "%s%s", machine->mmap_name, kmap->ref_reloc_sym->name) + 1; |
9ac3e487 | 945 | size = PERF_ALIGN(size, sizeof(u64)); |
9c90a61c ACM |
946 | event->mmap.header.type = PERF_RECORD_MMAP; |
947 | event->mmap.header.size = (sizeof(event->mmap) - | |
743eb868 | 948 | (sizeof(event->mmap.filename) - size) + machine->id_hdr_size); |
0ae617be | 949 | event->mmap.pgoff = kmap->ref_reloc_sym->addr; |
9c90a61c ACM |
950 | event->mmap.start = map->start; |
951 | event->mmap.len = map->end - event->mmap.start; | |
952 | event->mmap.pid = machine->pid; | |
953 | ||
3ea223ad | 954 | err = perf_tool__process_synth_event(tool, event, machine, process); |
9c90a61c ACM |
955 | free(event); |
956 | ||
957 | return err; | |
56b03f3c ACM |
958 | } |
959 | ||
a8ce99b0 AH |
960 | int perf_event__synthesize_kernel_mmap(struct perf_tool *tool, |
961 | perf_event__handler_t process, | |
962 | struct machine *machine) | |
963 | { | |
964 | int err; | |
965 | ||
966 | err = __perf_event__synthesize_kernel_mmap(tool, process, machine); | |
967 | if (err < 0) | |
968 | return err; | |
969 | ||
970 | return perf_event__synthesize_extra_kmaps(tool, process, machine); | |
971 | } | |
972 | ||
99471c96 JO |
973 | int perf_event__synthesize_thread_map2(struct perf_tool *tool, |
974 | struct thread_map *threads, | |
975 | perf_event__handler_t process, | |
976 | struct machine *machine) | |
977 | { | |
978 | union perf_event *event; | |
979 | int i, err, size; | |
980 | ||
981 | size = sizeof(event->thread_map); | |
982 | size += threads->nr * sizeof(event->thread_map.entries[0]); | |
983 | ||
984 | event = zalloc(size); | |
985 | if (!event) | |
986 | return -ENOMEM; | |
987 | ||
988 | event->header.type = PERF_RECORD_THREAD_MAP; | |
989 | event->header.size = size; | |
990 | event->thread_map.nr = threads->nr; | |
991 | ||
992 | for (i = 0; i < threads->nr; i++) { | |
993 | struct thread_map_event_entry *entry = &event->thread_map.entries[i]; | |
994 | char *comm = thread_map__comm(threads, i); | |
995 | ||
996 | if (!comm) | |
997 | comm = (char *) ""; | |
998 | ||
999 | entry->pid = thread_map__pid(threads, i); | |
1000 | strncpy((char *) &entry->comm, comm, sizeof(entry->comm)); | |
1001 | } | |
1002 | ||
1003 | err = process(tool, event, NULL, machine); | |
1004 | ||
1005 | free(event); | |
1006 | return err; | |
1007 | } | |
1008 | ||
6c872901 JO |
1009 | static void synthesize_cpus(struct cpu_map_entries *cpus, |
1010 | struct cpu_map *map) | |
1011 | { | |
1012 | int i; | |
1013 | ||
1014 | cpus->nr = map->nr; | |
1015 | ||
1016 | for (i = 0; i < map->nr; i++) | |
1017 | cpus->cpu[i] = map->map[i]; | |
1018 | } | |
1019 | ||
1020 | static void synthesize_mask(struct cpu_map_mask *mask, | |
1021 | struct cpu_map *map, int max) | |
1022 | { | |
1023 | int i; | |
1024 | ||
1025 | mask->nr = BITS_TO_LONGS(max); | |
1026 | mask->long_size = sizeof(long); | |
1027 | ||
1028 | for (i = 0; i < map->nr; i++) | |
1029 | set_bit(map->map[i], mask->mask); | |
1030 | } | |
1031 | ||
1032 | static size_t cpus_size(struct cpu_map *map) | |
1033 | { | |
1034 | return sizeof(struct cpu_map_entries) + map->nr * sizeof(u16); | |
1035 | } | |
1036 | ||
1037 | static size_t mask_size(struct cpu_map *map, int *max) | |
1038 | { | |
1039 | int i; | |
1040 | ||
1041 | *max = 0; | |
1042 | ||
1043 | for (i = 0; i < map->nr; i++) { | |
1044 | /* bit possition of the cpu is + 1 */ | |
1045 | int bit = map->map[i] + 1; | |
1046 | ||
1047 | if (bit > *max) | |
1048 | *max = bit; | |
1049 | } | |
1050 | ||
1051 | return sizeof(struct cpu_map_mask) + BITS_TO_LONGS(*max) * sizeof(long); | |
1052 | } | |
1053 | ||
1054 | void *cpu_map_data__alloc(struct cpu_map *map, size_t *size, u16 *type, int *max) | |
1055 | { | |
1056 | size_t size_cpus, size_mask; | |
1057 | bool is_dummy = cpu_map__empty(map); | |
1058 | ||
1059 | /* | |
1060 | * Both array and mask data have variable size based | |
1061 | * on the number of cpus and their actual values. | |
1062 | * The size of the 'struct cpu_map_data' is: | |
1063 | * | |
1064 | * array = size of 'struct cpu_map_entries' + | |
1065 | * number of cpus * sizeof(u64) | |
1066 | * | |
1067 | * mask = size of 'struct cpu_map_mask' + | |
1068 | * maximum cpu bit converted to size of longs | |
1069 | * | |
1070 | * and finaly + the size of 'struct cpu_map_data'. | |
1071 | */ | |
1072 | size_cpus = cpus_size(map); | |
1073 | size_mask = mask_size(map, max); | |
1074 | ||
1075 | if (is_dummy || (size_cpus < size_mask)) { | |
1076 | *size += size_cpus; | |
1077 | *type = PERF_CPU_MAP__CPUS; | |
1078 | } else { | |
1079 | *size += size_mask; | |
1080 | *type = PERF_CPU_MAP__MASK; | |
1081 | } | |
1082 | ||
1083 | *size += sizeof(struct cpu_map_data); | |
0ed149cf | 1084 | *size = PERF_ALIGN(*size, sizeof(u64)); |
6c872901 JO |
1085 | return zalloc(*size); |
1086 | } | |
1087 | ||
1088 | void cpu_map_data__synthesize(struct cpu_map_data *data, struct cpu_map *map, | |
1089 | u16 type, int max) | |
1090 | { | |
1091 | data->type = type; | |
1092 | ||
1093 | switch (type) { | |
1094 | case PERF_CPU_MAP__CPUS: | |
1095 | synthesize_cpus((struct cpu_map_entries *) data->data, map); | |
1096 | break; | |
1097 | case PERF_CPU_MAP__MASK: | |
1098 | synthesize_mask((struct cpu_map_mask *) data->data, map, max); | |
1099 | default: | |
1100 | break; | |
1101 | }; | |
1102 | } | |
1103 | ||
1104 | static struct cpu_map_event* cpu_map_event__new(struct cpu_map *map) | |
1105 | { | |
1106 | size_t size = sizeof(struct cpu_map_event); | |
1107 | struct cpu_map_event *event; | |
1108 | int max; | |
1109 | u16 type; | |
1110 | ||
1111 | event = cpu_map_data__alloc(map, &size, &type, &max); | |
1112 | if (!event) | |
1113 | return NULL; | |
1114 | ||
1115 | event->header.type = PERF_RECORD_CPU_MAP; | |
1116 | event->header.size = size; | |
1117 | event->data.type = type; | |
1118 | ||
1119 | cpu_map_data__synthesize(&event->data, map, type, max); | |
1120 | return event; | |
1121 | } | |
1122 | ||
1123 | int perf_event__synthesize_cpu_map(struct perf_tool *tool, | |
1124 | struct cpu_map *map, | |
1125 | perf_event__handler_t process, | |
1126 | struct machine *machine) | |
1127 | { | |
1128 | struct cpu_map_event *event; | |
1129 | int err; | |
1130 | ||
1131 | event = cpu_map_event__new(map); | |
1132 | if (!event) | |
1133 | return -ENOMEM; | |
1134 | ||
1135 | err = process(tool, (union perf_event *) event, NULL, machine); | |
1136 | ||
1137 | free(event); | |
1138 | return err; | |
1139 | } | |
1140 | ||
67424342 JO |
1141 | int perf_event__synthesize_stat_config(struct perf_tool *tool, |
1142 | struct perf_stat_config *config, | |
1143 | perf_event__handler_t process, | |
1144 | struct machine *machine) | |
1145 | { | |
1146 | struct stat_config_event *event; | |
1147 | int size, i = 0, err; | |
1148 | ||
1149 | size = sizeof(*event); | |
1150 | size += (PERF_STAT_CONFIG_TERM__MAX * sizeof(event->data[0])); | |
1151 | ||
1152 | event = zalloc(size); | |
1153 | if (!event) | |
1154 | return -ENOMEM; | |
1155 | ||
1156 | event->header.type = PERF_RECORD_STAT_CONFIG; | |
1157 | event->header.size = size; | |
1158 | event->nr = PERF_STAT_CONFIG_TERM__MAX; | |
1159 | ||
1160 | #define ADD(__term, __val) \ | |
1161 | event->data[i].tag = PERF_STAT_CONFIG_TERM__##__term; \ | |
1162 | event->data[i].val = __val; \ | |
1163 | i++; | |
1164 | ||
1165 | ADD(AGGR_MODE, config->aggr_mode) | |
1166 | ADD(INTERVAL, config->interval) | |
1167 | ADD(SCALE, config->scale) | |
1168 | ||
1169 | WARN_ONCE(i != PERF_STAT_CONFIG_TERM__MAX, | |
1170 | "stat config terms unbalanced\n"); | |
1171 | #undef ADD | |
1172 | ||
1173 | err = process(tool, (union perf_event *) event, NULL, machine); | |
1174 | ||
1175 | free(event); | |
1176 | return err; | |
1177 | } | |
1178 | ||
5796f8f0 JO |
1179 | int perf_event__synthesize_stat(struct perf_tool *tool, |
1180 | u32 cpu, u32 thread, u64 id, | |
1181 | struct perf_counts_values *count, | |
1182 | perf_event__handler_t process, | |
1183 | struct machine *machine) | |
1184 | { | |
1185 | struct stat_event event; | |
1186 | ||
1187 | event.header.type = PERF_RECORD_STAT; | |
1188 | event.header.size = sizeof(event); | |
1189 | event.header.misc = 0; | |
1190 | ||
1191 | event.id = id; | |
1192 | event.cpu = cpu; | |
1193 | event.thread = thread; | |
1194 | event.val = count->val; | |
1195 | event.ena = count->ena; | |
1196 | event.run = count->run; | |
1197 | ||
1198 | return process(tool, (union perf_event *) &event, NULL, machine); | |
1199 | } | |
1200 | ||
d4c22591 JO |
1201 | int perf_event__synthesize_stat_round(struct perf_tool *tool, |
1202 | u64 evtime, u64 type, | |
1203 | perf_event__handler_t process, | |
1204 | struct machine *machine) | |
1205 | { | |
1206 | struct stat_round_event event; | |
1207 | ||
1208 | event.header.type = PERF_RECORD_STAT_ROUND; | |
1209 | event.header.size = sizeof(event); | |
1210 | event.header.misc = 0; | |
1211 | ||
1212 | event.time = evtime; | |
1213 | event.type = type; | |
1214 | ||
1215 | return process(tool, (union perf_event *) &event, NULL, machine); | |
1216 | } | |
1217 | ||
8e381596 JO |
1218 | void perf_event__read_stat_config(struct perf_stat_config *config, |
1219 | struct stat_config_event *event) | |
1220 | { | |
1221 | unsigned i; | |
1222 | ||
1223 | for (i = 0; i < event->nr; i++) { | |
1224 | ||
1225 | switch (event->data[i].tag) { | |
1226 | #define CASE(__term, __val) \ | |
1227 | case PERF_STAT_CONFIG_TERM__##__term: \ | |
1228 | config->__val = event->data[i].val; \ | |
1229 | break; | |
1230 | ||
1231 | CASE(AGGR_MODE, aggr_mode) | |
1232 | CASE(SCALE, scale) | |
1233 | CASE(INTERVAL, interval) | |
1234 | #undef CASE | |
1235 | default: | |
1236 | pr_warning("unknown stat config term %" PRIu64 "\n", | |
1237 | event->data[i].tag); | |
1238 | } | |
1239 | } | |
1240 | } | |
1241 | ||
482ad897 ACM |
1242 | size_t perf_event__fprintf_comm(union perf_event *event, FILE *fp) |
1243 | { | |
022c50d0 AH |
1244 | const char *s; |
1245 | ||
1246 | if (event->header.misc & PERF_RECORD_MISC_COMM_EXEC) | |
1247 | s = " exec"; | |
1248 | else | |
1249 | s = ""; | |
1250 | ||
50674065 | 1251 | return fprintf(fp, "%s: %s:%d/%d\n", s, event->comm.comm, event->comm.pid, event->comm.tid); |
482ad897 ACM |
1252 | } |
1253 | ||
f3b3614a HB |
1254 | size_t perf_event__fprintf_namespaces(union perf_event *event, FILE *fp) |
1255 | { | |
1256 | size_t ret = 0; | |
1257 | struct perf_ns_link_info *ns_link_info; | |
1258 | u32 nr_namespaces, idx; | |
1259 | ||
1260 | ns_link_info = event->namespaces.link_info; | |
1261 | nr_namespaces = event->namespaces.nr_namespaces; | |
1262 | ||
1263 | ret += fprintf(fp, " %d/%d - nr_namespaces: %u\n\t\t[", | |
1264 | event->namespaces.pid, | |
1265 | event->namespaces.tid, | |
1266 | nr_namespaces); | |
1267 | ||
1268 | for (idx = 0; idx < nr_namespaces; idx++) { | |
1269 | if (idx && (idx % 4 == 0)) | |
1270 | ret += fprintf(fp, "\n\t\t "); | |
1271 | ||
1272 | ret += fprintf(fp, "%u/%s: %" PRIu64 "/%#" PRIx64 "%s", idx, | |
1273 | perf_ns__name(idx), (u64)ns_link_info[idx].dev, | |
1274 | (u64)ns_link_info[idx].ino, | |
1275 | ((idx + 1) != nr_namespaces) ? ", " : "]\n"); | |
1276 | } | |
1277 | ||
1278 | return ret; | |
1279 | } | |
1280 | ||
1d037ca1 | 1281 | int perf_event__process_comm(struct perf_tool *tool __maybe_unused, |
d20deb64 | 1282 | union perf_event *event, |
162f0bef | 1283 | struct perf_sample *sample, |
743eb868 | 1284 | struct machine *machine) |
62daacb5 | 1285 | { |
162f0bef | 1286 | return machine__process_comm_event(machine, event, sample); |
62daacb5 ACM |
1287 | } |
1288 | ||
f3b3614a HB |
1289 | int perf_event__process_namespaces(struct perf_tool *tool __maybe_unused, |
1290 | union perf_event *event, | |
1291 | struct perf_sample *sample, | |
1292 | struct machine *machine) | |
1293 | { | |
1294 | return machine__process_namespaces_event(machine, event, sample); | |
1295 | } | |
1296 | ||
1d037ca1 | 1297 | int perf_event__process_lost(struct perf_tool *tool __maybe_unused, |
d20deb64 | 1298 | union perf_event *event, |
162f0bef | 1299 | struct perf_sample *sample, |
b0a7d1a0 | 1300 | struct machine *machine) |
62daacb5 | 1301 | { |
162f0bef | 1302 | return machine__process_lost_event(machine, event, sample); |
a1645ce1 | 1303 | } |
b7cece76 | 1304 | |
4a96f7a0 AH |
1305 | int perf_event__process_aux(struct perf_tool *tool __maybe_unused, |
1306 | union perf_event *event, | |
1307 | struct perf_sample *sample __maybe_unused, | |
1308 | struct machine *machine) | |
1309 | { | |
1310 | return machine__process_aux_event(machine, event); | |
1311 | } | |
1312 | ||
0ad21f68 AH |
1313 | int perf_event__process_itrace_start(struct perf_tool *tool __maybe_unused, |
1314 | union perf_event *event, | |
1315 | struct perf_sample *sample __maybe_unused, | |
1316 | struct machine *machine) | |
1317 | { | |
1318 | return machine__process_itrace_start_event(machine, event); | |
1319 | } | |
1320 | ||
c4937a91 KL |
1321 | int perf_event__process_lost_samples(struct perf_tool *tool __maybe_unused, |
1322 | union perf_event *event, | |
1323 | struct perf_sample *sample, | |
1324 | struct machine *machine) | |
1325 | { | |
1326 | return machine__process_lost_samples_event(machine, event, sample); | |
1327 | } | |
1328 | ||
0286039f AH |
1329 | int perf_event__process_switch(struct perf_tool *tool __maybe_unused, |
1330 | union perf_event *event, | |
1331 | struct perf_sample *sample __maybe_unused, | |
1332 | struct machine *machine) | |
1333 | { | |
1334 | return machine__process_switch_event(machine, event); | |
1335 | } | |
1336 | ||
482ad897 ACM |
1337 | size_t perf_event__fprintf_mmap(union perf_event *event, FILE *fp) |
1338 | { | |
62605dc5 | 1339 | return fprintf(fp, " %d/%d: [%#" PRIx64 "(%#" PRIx64 ") @ %#" PRIx64 "]: %c %s\n", |
482ad897 | 1340 | event->mmap.pid, event->mmap.tid, event->mmap.start, |
62605dc5 ACM |
1341 | event->mmap.len, event->mmap.pgoff, |
1342 | (event->header.misc & PERF_RECORD_MISC_MMAP_DATA) ? 'r' : 'x', | |
1343 | event->mmap.filename); | |
482ad897 ACM |
1344 | } |
1345 | ||
5c5e854b SE |
1346 | size_t perf_event__fprintf_mmap2(union perf_event *event, FILE *fp) |
1347 | { | |
1348 | return fprintf(fp, " %d/%d: [%#" PRIx64 "(%#" PRIx64 ") @ %#" PRIx64 | |
7ef80703 | 1349 | " %02x:%02x %"PRIu64" %"PRIu64"]: %c%c%c%c %s\n", |
5c5e854b SE |
1350 | event->mmap2.pid, event->mmap2.tid, event->mmap2.start, |
1351 | event->mmap2.len, event->mmap2.pgoff, event->mmap2.maj, | |
1352 | event->mmap2.min, event->mmap2.ino, | |
1353 | event->mmap2.ino_generation, | |
7ef80703 DZ |
1354 | (event->mmap2.prot & PROT_READ) ? 'r' : '-', |
1355 | (event->mmap2.prot & PROT_WRITE) ? 'w' : '-', | |
1356 | (event->mmap2.prot & PROT_EXEC) ? 'x' : '-', | |
1357 | (event->mmap2.flags & MAP_SHARED) ? 's' : 'p', | |
5c5e854b SE |
1358 | event->mmap2.filename); |
1359 | } | |
1360 | ||
ec7fa596 JO |
1361 | size_t perf_event__fprintf_thread_map(union perf_event *event, FILE *fp) |
1362 | { | |
1363 | struct thread_map *threads = thread_map__new_event(&event->thread_map); | |
1364 | size_t ret; | |
1365 | ||
1366 | ret = fprintf(fp, " nr: "); | |
1367 | ||
1368 | if (threads) | |
1369 | ret += thread_map__fprintf(threads, fp); | |
1370 | else | |
1371 | ret += fprintf(fp, "failed to get threads from event\n"); | |
1372 | ||
1373 | thread_map__put(threads); | |
1374 | return ret; | |
1375 | } | |
1376 | ||
eb12a1af JO |
1377 | size_t perf_event__fprintf_cpu_map(union perf_event *event, FILE *fp) |
1378 | { | |
1379 | struct cpu_map *cpus = cpu_map__new_data(&event->cpu_map.data); | |
1380 | size_t ret; | |
1381 | ||
a24020e6 | 1382 | ret = fprintf(fp, ": "); |
eb12a1af JO |
1383 | |
1384 | if (cpus) | |
1385 | ret += cpu_map__fprintf(cpus, fp); | |
1386 | else | |
1387 | ret += fprintf(fp, "failed to get cpumap from event\n"); | |
1388 | ||
1389 | cpu_map__put(cpus); | |
1390 | return ret; | |
1391 | } | |
1392 | ||
b0a7d1a0 | 1393 | int perf_event__process_mmap(struct perf_tool *tool __maybe_unused, |
d20deb64 | 1394 | union perf_event *event, |
162f0bef | 1395 | struct perf_sample *sample, |
743eb868 | 1396 | struct machine *machine) |
a1645ce1 | 1397 | { |
162f0bef | 1398 | return machine__process_mmap_event(machine, event, sample); |
62daacb5 ACM |
1399 | } |
1400 | ||
5c5e854b SE |
1401 | int perf_event__process_mmap2(struct perf_tool *tool __maybe_unused, |
1402 | union perf_event *event, | |
162f0bef | 1403 | struct perf_sample *sample, |
5c5e854b SE |
1404 | struct machine *machine) |
1405 | { | |
162f0bef | 1406 | return machine__process_mmap2_event(machine, event, sample); |
5c5e854b SE |
1407 | } |
1408 | ||
482ad897 ACM |
1409 | size_t perf_event__fprintf_task(union perf_event *event, FILE *fp) |
1410 | { | |
1411 | return fprintf(fp, "(%d:%d):(%d:%d)\n", | |
1412 | event->fork.pid, event->fork.tid, | |
1413 | event->fork.ppid, event->fork.ptid); | |
1414 | } | |
1415 | ||
f62d3f0f | 1416 | int perf_event__process_fork(struct perf_tool *tool __maybe_unused, |
d20deb64 | 1417 | union perf_event *event, |
162f0bef | 1418 | struct perf_sample *sample, |
f62d3f0f | 1419 | struct machine *machine) |
62daacb5 | 1420 | { |
162f0bef | 1421 | return machine__process_fork_event(machine, event, sample); |
62daacb5 | 1422 | } |
1ed091c4 | 1423 | |
f62d3f0f ACM |
1424 | int perf_event__process_exit(struct perf_tool *tool __maybe_unused, |
1425 | union perf_event *event, | |
162f0bef | 1426 | struct perf_sample *sample, |
f62d3f0f ACM |
1427 | struct machine *machine) |
1428 | { | |
162f0bef | 1429 | return machine__process_exit_event(machine, event, sample); |
f62d3f0f ACM |
1430 | } |
1431 | ||
4a96f7a0 AH |
1432 | size_t perf_event__fprintf_aux(union perf_event *event, FILE *fp) |
1433 | { | |
05a1f47e | 1434 | return fprintf(fp, " offset: %#"PRIx64" size: %#"PRIx64" flags: %#"PRIx64" [%s%s%s]\n", |
4a96f7a0 AH |
1435 | event->aux.aux_offset, event->aux.aux_size, |
1436 | event->aux.flags, | |
1437 | event->aux.flags & PERF_AUX_FLAG_TRUNCATED ? "T" : "", | |
05a1f47e AS |
1438 | event->aux.flags & PERF_AUX_FLAG_OVERWRITE ? "O" : "", |
1439 | event->aux.flags & PERF_AUX_FLAG_PARTIAL ? "P" : ""); | |
4a96f7a0 AH |
1440 | } |
1441 | ||
0ad21f68 AH |
1442 | size_t perf_event__fprintf_itrace_start(union perf_event *event, FILE *fp) |
1443 | { | |
1444 | return fprintf(fp, " pid: %u tid: %u\n", | |
1445 | event->itrace_start.pid, event->itrace_start.tid); | |
1446 | } | |
1447 | ||
0286039f AH |
1448 | size_t perf_event__fprintf_switch(union perf_event *event, FILE *fp) |
1449 | { | |
1450 | bool out = event->header.misc & PERF_RECORD_MISC_SWITCH_OUT; | |
b3f35b5d AB |
1451 | const char *in_out = !out ? "IN " : |
1452 | !(event->header.misc & PERF_RECORD_MISC_SWITCH_OUT_PREEMPT) ? | |
1453 | "OUT " : "OUT preempt"; | |
0286039f AH |
1454 | |
1455 | if (event->header.type == PERF_RECORD_SWITCH) | |
1456 | return fprintf(fp, " %s\n", in_out); | |
1457 | ||
1458 | return fprintf(fp, " %s %s pid/tid: %5u/%-5u\n", | |
1459 | in_out, out ? "next" : "prev", | |
1460 | event->context_switch.next_prev_pid, | |
1461 | event->context_switch.next_prev_tid); | |
1462 | } | |
1463 | ||
3d7c27b6 JO |
1464 | static size_t perf_event__fprintf_lost(union perf_event *event, FILE *fp) |
1465 | { | |
1466 | return fprintf(fp, " lost %" PRIu64 "\n", event->lost.lost); | |
1467 | } | |
1468 | ||
482ad897 ACM |
1469 | size_t perf_event__fprintf(union perf_event *event, FILE *fp) |
1470 | { | |
1471 | size_t ret = fprintf(fp, "PERF_RECORD_%s", | |
1472 | perf_event__name(event->header.type)); | |
1473 | ||
1474 | switch (event->header.type) { | |
1475 | case PERF_RECORD_COMM: | |
1476 | ret += perf_event__fprintf_comm(event, fp); | |
1477 | break; | |
1478 | case PERF_RECORD_FORK: | |
1479 | case PERF_RECORD_EXIT: | |
1480 | ret += perf_event__fprintf_task(event, fp); | |
1481 | break; | |
1482 | case PERF_RECORD_MMAP: | |
1483 | ret += perf_event__fprintf_mmap(event, fp); | |
f3b3614a HB |
1484 | break; |
1485 | case PERF_RECORD_NAMESPACES: | |
1486 | ret += perf_event__fprintf_namespaces(event, fp); | |
482ad897 | 1487 | break; |
5c5e854b SE |
1488 | case PERF_RECORD_MMAP2: |
1489 | ret += perf_event__fprintf_mmap2(event, fp); | |
1490 | break; | |
4a96f7a0 AH |
1491 | case PERF_RECORD_AUX: |
1492 | ret += perf_event__fprintf_aux(event, fp); | |
1493 | break; | |
0ad21f68 AH |
1494 | case PERF_RECORD_ITRACE_START: |
1495 | ret += perf_event__fprintf_itrace_start(event, fp); | |
1496 | break; | |
0286039f AH |
1497 | case PERF_RECORD_SWITCH: |
1498 | case PERF_RECORD_SWITCH_CPU_WIDE: | |
1499 | ret += perf_event__fprintf_switch(event, fp); | |
1500 | break; | |
3d7c27b6 JO |
1501 | case PERF_RECORD_LOST: |
1502 | ret += perf_event__fprintf_lost(event, fp); | |
1503 | break; | |
482ad897 ACM |
1504 | default: |
1505 | ret += fprintf(fp, "\n"); | |
1506 | } | |
1507 | ||
1508 | return ret; | |
1509 | } | |
1510 | ||
b0a7d1a0 ACM |
1511 | int perf_event__process(struct perf_tool *tool __maybe_unused, |
1512 | union perf_event *event, | |
162f0bef | 1513 | struct perf_sample *sample, |
b0a7d1a0 | 1514 | struct machine *machine) |
b83f920e | 1515 | { |
162f0bef | 1516 | return machine__process_event(machine, event, sample); |
b83f920e SD |
1517 | } |
1518 | ||
3183f8ca ACM |
1519 | struct map *thread__find_map(struct thread *thread, u8 cpumode, u64 addr, |
1520 | struct addr_location *al) | |
1ed091c4 | 1521 | { |
93d5731d | 1522 | struct map_groups *mg = thread->mg; |
bb871a9c | 1523 | struct machine *machine = mg->machine; |
5b7ba82a | 1524 | bool load_map = false; |
1ed091c4 | 1525 | |
cc22e575 | 1526 | al->machine = machine; |
316c7136 | 1527 | al->thread = thread; |
1ed091c4 | 1528 | al->addr = addr; |
a1645ce1 | 1529 | al->cpumode = cpumode; |
b3cef7f6 | 1530 | al->filtered = 0; |
1ed091c4 | 1531 | |
743eb868 ACM |
1532 | if (machine == NULL) { |
1533 | al->map = NULL; | |
71a84b5a | 1534 | return NULL; |
743eb868 ACM |
1535 | } |
1536 | ||
a1645ce1 | 1537 | if (cpumode == PERF_RECORD_MISC_KERNEL && perf_host) { |
1ed091c4 | 1538 | al->level = 'k'; |
23346f21 | 1539 | mg = &machine->kmaps; |
5b7ba82a | 1540 | load_map = true; |
a1645ce1 | 1541 | } else if (cpumode == PERF_RECORD_MISC_USER && perf_host) { |
1ed091c4 | 1542 | al->level = '.'; |
a1645ce1 ZY |
1543 | } else if (cpumode == PERF_RECORD_MISC_GUEST_KERNEL && perf_guest) { |
1544 | al->level = 'g'; | |
23346f21 | 1545 | mg = &machine->kmaps; |
5b7ba82a | 1546 | load_map = true; |
fb50bb43 DY |
1547 | } else if (cpumode == PERF_RECORD_MISC_GUEST_USER && perf_guest) { |
1548 | al->level = 'u'; | |
a1645ce1 | 1549 | } else { |
fb50bb43 | 1550 | al->level = 'H'; |
1ed091c4 | 1551 | al->map = NULL; |
a1645ce1 ZY |
1552 | |
1553 | if ((cpumode == PERF_RECORD_MISC_GUEST_USER || | |
1554 | cpumode == PERF_RECORD_MISC_GUEST_KERNEL) && | |
1555 | !perf_guest) | |
b3cef7f6 | 1556 | al->filtered |= (1 << HIST_FILTER__GUEST); |
a1645ce1 ZY |
1557 | if ((cpumode == PERF_RECORD_MISC_USER || |
1558 | cpumode == PERF_RECORD_MISC_KERNEL) && | |
1559 | !perf_host) | |
b3cef7f6 | 1560 | al->filtered |= (1 << HIST_FILTER__HOST); |
a1645ce1 | 1561 | |
71a84b5a | 1562 | return NULL; |
1ed091c4 | 1563 | } |
edeb0c90 | 1564 | |
3183f8ca | 1565 | al->map = map_groups__find(mg, al->addr); |
edeb0c90 | 1566 | if (al->map != NULL) { |
5b7ba82a AH |
1567 | /* |
1568 | * Kernel maps might be changed when loading symbols so loading | |
1569 | * must be done prior to using kernel maps. | |
1570 | */ | |
1571 | if (load_map) | |
be39db9f | 1572 | map__load(al->map); |
1ed091c4 | 1573 | al->addr = al->map->map_ip(al->map, al->addr); |
5b7ba82a | 1574 | } |
71a84b5a ACM |
1575 | |
1576 | return al->map; | |
59ee68ec ACM |
1577 | } |
1578 | ||
117d3c24 ACM |
1579 | struct symbol *thread__find_symbol(struct thread *thread, u8 cpumode, |
1580 | u64 addr, struct addr_location *al) | |
59ee68ec | 1581 | { |
d9a5f274 | 1582 | al->sym = NULL; |
404eb5a4 | 1583 | if (thread__find_map(thread, cpumode, addr, al)) |
be39db9f | 1584 | al->sym = map__find_symbol(al->map, al->addr); |
d9a5f274 | 1585 | return al->sym; |
1ed091c4 ACM |
1586 | } |
1587 | ||
b91fc39f ACM |
1588 | /* |
1589 | * Callers need to drop the reference to al->thread, obtained in | |
1590 | * machine__findnew_thread() | |
1591 | */ | |
bb3eb566 ACM |
1592 | int machine__resolve(struct machine *machine, struct addr_location *al, |
1593 | struct perf_sample *sample) | |
1ed091c4 | 1594 | { |
ef89325f | 1595 | struct thread *thread = machine__findnew_thread(machine, sample->pid, |
13ce34df | 1596 | sample->tid); |
41a37e20 | 1597 | |
1ed091c4 ACM |
1598 | if (thread == NULL) |
1599 | return -1; | |
1600 | ||
b9c5143a | 1601 | dump_printf(" ... thread: %s:%d\n", thread__comm_str(thread), thread->tid); |
f07a2d32 | 1602 | thread__find_map(thread, sample->cpumode, sample->ip, al); |
1ed091c4 ACM |
1603 | dump_printf(" ...... dso: %s\n", |
1604 | al->map ? al->map->dso->long_name : | |
1605 | al->level == 'H' ? "[hypervisor]" : "<not found>"); | |
466fa764 NK |
1606 | |
1607 | if (thread__is_filtered(thread)) | |
1608 | al->filtered |= (1 << HIST_FILTER__THREAD); | |
1609 | ||
96415e4d | 1610 | al->sym = NULL; |
8d50e5b4 | 1611 | al->cpu = sample->cpu; |
0c4c4deb | 1612 | al->socket = -1; |
1fb7d06a | 1613 | al->srcline = NULL; |
0c4c4deb KL |
1614 | |
1615 | if (al->cpu >= 0) { | |
1616 | struct perf_env *env = machine->env; | |
1617 | ||
1618 | if (env && env->cpu) | |
1619 | al->socket = env->cpu[al->cpu].socket_id; | |
1620 | } | |
96415e4d ACM |
1621 | |
1622 | if (al->map) { | |
cb8f4e9a NK |
1623 | struct dso *dso = al->map->dso; |
1624 | ||
96415e4d | 1625 | if (symbol_conf.dso_list && |
cb8f4e9a NK |
1626 | (!dso || !(strlist__has_entry(symbol_conf.dso_list, |
1627 | dso->short_name) || | |
1628 | (dso->short_name != dso->long_name && | |
1629 | strlist__has_entry(symbol_conf.dso_list, | |
b3cef7f6 NK |
1630 | dso->long_name))))) { |
1631 | al->filtered |= (1 << HIST_FILTER__DSO); | |
b3cef7f6 | 1632 | } |
96415e4d | 1633 | |
be39db9f | 1634 | al->sym = map__find_symbol(al->map, al->addr); |
96415e4d | 1635 | } |
c410a338 | 1636 | |
1500b93b FT |
1637 | if (symbol_conf.sym_list && |
1638 | (!al->sym || !strlist__has_entry(symbol_conf.sym_list, | |
b3cef7f6 NK |
1639 | al->sym->name))) { |
1640 | al->filtered |= (1 << HIST_FILTER__SYMBOL); | |
b3cef7f6 | 1641 | } |
c410a338 | 1642 | |
c410a338 | 1643 | return 0; |
1ed091c4 | 1644 | } |
9b0d2d87 | 1645 | |
b91fc39f ACM |
1646 | /* |
1647 | * The preprocess_sample method will return with reference counts for the | |
1648 | * in it, when done using (and perhaps getting ref counts if needing to | |
1649 | * keep a pointer to one of those entries) it must be paired with | |
1650 | * addr_location__put(), so that the refcounts can be decremented. | |
1651 | */ | |
1652 | void addr_location__put(struct addr_location *al) | |
1653 | { | |
1654 | thread__zput(al->thread); | |
1655 | } | |
1656 | ||
9b0d2d87 AH |
1657 | bool is_bts_event(struct perf_event_attr *attr) |
1658 | { | |
1659 | return attr->type == PERF_TYPE_HARDWARE && | |
1660 | (attr->config & PERF_COUNT_HW_BRANCH_INSTRUCTIONS) && | |
1661 | attr->sample_period == 1; | |
1662 | } | |
1663 | ||
1664 | bool sample_addr_correlates_sym(struct perf_event_attr *attr) | |
1665 | { | |
1666 | if (attr->type == PERF_TYPE_SOFTWARE && | |
1667 | (attr->config == PERF_COUNT_SW_PAGE_FAULTS || | |
1668 | attr->config == PERF_COUNT_SW_PAGE_FAULTS_MIN || | |
1669 | attr->config == PERF_COUNT_SW_PAGE_FAULTS_MAJ)) | |
1670 | return true; | |
1671 | ||
1672 | if (is_bts_event(attr)) | |
1673 | return true; | |
1674 | ||
1675 | return false; | |
1676 | } | |
1677 | ||
c2740a87 ACM |
1678 | void thread__resolve(struct thread *thread, struct addr_location *al, |
1679 | struct perf_sample *sample) | |
9b0d2d87 | 1680 | { |
404eb5a4 | 1681 | thread__find_map(thread, sample->cpumode, sample->addr, al); |
9b0d2d87 AH |
1682 | |
1683 | al->cpu = sample->cpu; | |
1684 | al->sym = NULL; | |
1685 | ||
1686 | if (al->map) | |
be39db9f | 1687 | al->sym = map__find_symbol(al->map, al->addr); |
9b0d2d87 | 1688 | } |