Adrian Hunter | 0db15b1 | 2014-10-23 13:45:13 +0300 | [diff] [blame] | 1 | /* |
| 2 | * db-export.c: Support for exporting data suitable for import to a database |
| 3 | * Copyright (c) 2014, Intel Corporation. |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify it |
| 6 | * under the terms and conditions of the GNU General Public License, |
| 7 | * version 2, as published by the Free Software Foundation. |
| 8 | * |
| 9 | * This program is distributed in the hope it will be useful, but WITHOUT |
| 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 12 | * more details. |
| 13 | * |
| 14 | */ |
| 15 | |
| 16 | #include <errno.h> |
| 17 | |
| 18 | #include "evsel.h" |
| 19 | #include "machine.h" |
| 20 | #include "thread.h" |
| 21 | #include "comm.h" |
| 22 | #include "symbol.h" |
| 23 | #include "event.h" |
Adrian Hunter | 758008b | 2014-10-30 16:09:48 +0200 | [diff] [blame] | 24 | #include "util.h" |
Adrian Hunter | 88f50d6 | 2014-10-30 16:09:46 +0200 | [diff] [blame] | 25 | #include "thread-stack.h" |
Adrian Hunter | 0db15b1 | 2014-10-23 13:45:13 +0300 | [diff] [blame] | 26 | #include "db-export.h" |
| 27 | |
Adrian Hunter | 758008b | 2014-10-30 16:09:48 +0200 | [diff] [blame] | 28 | struct deferred_export { |
| 29 | struct list_head node; |
| 30 | struct comm *comm; |
| 31 | }; |
| 32 | |
| 33 | static int db_export__deferred(struct db_export *dbe) |
| 34 | { |
| 35 | struct deferred_export *de; |
| 36 | int err; |
| 37 | |
| 38 | while (!list_empty(&dbe->deferred)) { |
| 39 | de = list_entry(dbe->deferred.next, struct deferred_export, |
| 40 | node); |
| 41 | err = dbe->export_comm(dbe, de->comm); |
| 42 | list_del(&de->node); |
| 43 | free(de); |
| 44 | if (err) |
| 45 | return err; |
| 46 | } |
| 47 | |
| 48 | return 0; |
| 49 | } |
| 50 | |
| 51 | static void db_export__free_deferred(struct db_export *dbe) |
| 52 | { |
| 53 | struct deferred_export *de; |
| 54 | |
| 55 | while (!list_empty(&dbe->deferred)) { |
| 56 | de = list_entry(dbe->deferred.next, struct deferred_export, |
| 57 | node); |
| 58 | list_del(&de->node); |
| 59 | free(de); |
| 60 | } |
| 61 | } |
| 62 | |
| 63 | static int db_export__defer_comm(struct db_export *dbe, struct comm *comm) |
| 64 | { |
| 65 | struct deferred_export *de; |
| 66 | |
| 67 | de = zalloc(sizeof(struct deferred_export)); |
| 68 | if (!de) |
| 69 | return -ENOMEM; |
| 70 | |
| 71 | de->comm = comm; |
| 72 | list_add_tail(&de->node, &dbe->deferred); |
| 73 | |
| 74 | return 0; |
| 75 | } |
| 76 | |
Adrian Hunter | 0db15b1 | 2014-10-23 13:45:13 +0300 | [diff] [blame] | 77 | int db_export__init(struct db_export *dbe) |
| 78 | { |
| 79 | memset(dbe, 0, sizeof(struct db_export)); |
Adrian Hunter | 758008b | 2014-10-30 16:09:48 +0200 | [diff] [blame] | 80 | INIT_LIST_HEAD(&dbe->deferred); |
Adrian Hunter | 0db15b1 | 2014-10-23 13:45:13 +0300 | [diff] [blame] | 81 | return 0; |
| 82 | } |
| 83 | |
Adrian Hunter | 758008b | 2014-10-30 16:09:48 +0200 | [diff] [blame] | 84 | int db_export__flush(struct db_export *dbe) |
| 85 | { |
| 86 | return db_export__deferred(dbe); |
| 87 | } |
| 88 | |
Adrian Hunter | 88f50d6 | 2014-10-30 16:09:46 +0200 | [diff] [blame] | 89 | void db_export__exit(struct db_export *dbe) |
Adrian Hunter | 0db15b1 | 2014-10-23 13:45:13 +0300 | [diff] [blame] | 90 | { |
Adrian Hunter | 758008b | 2014-10-30 16:09:48 +0200 | [diff] [blame] | 91 | db_export__free_deferred(dbe); |
Adrian Hunter | 88f50d6 | 2014-10-30 16:09:46 +0200 | [diff] [blame] | 92 | call_return_processor__free(dbe->crp); |
| 93 | dbe->crp = NULL; |
Adrian Hunter | 0db15b1 | 2014-10-23 13:45:13 +0300 | [diff] [blame] | 94 | } |
| 95 | |
| 96 | int db_export__evsel(struct db_export *dbe, struct perf_evsel *evsel) |
| 97 | { |
| 98 | if (evsel->db_id) |
| 99 | return 0; |
| 100 | |
| 101 | evsel->db_id = ++dbe->evsel_last_db_id; |
| 102 | |
| 103 | if (dbe->export_evsel) |
| 104 | return dbe->export_evsel(dbe, evsel); |
| 105 | |
| 106 | return 0; |
| 107 | } |
| 108 | |
| 109 | int db_export__machine(struct db_export *dbe, struct machine *machine) |
| 110 | { |
| 111 | if (machine->db_id) |
| 112 | return 0; |
| 113 | |
| 114 | machine->db_id = ++dbe->machine_last_db_id; |
| 115 | |
| 116 | if (dbe->export_machine) |
| 117 | return dbe->export_machine(dbe, machine); |
| 118 | |
| 119 | return 0; |
| 120 | } |
| 121 | |
| 122 | int db_export__thread(struct db_export *dbe, struct thread *thread, |
| 123 | struct machine *machine, struct comm *comm) |
| 124 | { |
Arnaldo Carvalho de Melo | b91fc39 | 2015-04-06 20:43:22 -0300 | [diff] [blame] | 125 | struct thread *main_thread; |
Adrian Hunter | 0db15b1 | 2014-10-23 13:45:13 +0300 | [diff] [blame] | 126 | u64 main_thread_db_id = 0; |
| 127 | int err; |
| 128 | |
| 129 | if (thread->db_id) |
| 130 | return 0; |
| 131 | |
| 132 | thread->db_id = ++dbe->thread_last_db_id; |
| 133 | |
| 134 | if (thread->pid_ != -1) { |
Adrian Hunter | 0db15b1 | 2014-10-23 13:45:13 +0300 | [diff] [blame] | 135 | if (thread->pid_ == thread->tid) { |
| 136 | main_thread = thread; |
| 137 | } else { |
| 138 | main_thread = machine__findnew_thread(machine, |
| 139 | thread->pid_, |
| 140 | thread->pid_); |
| 141 | if (!main_thread) |
| 142 | return -ENOMEM; |
| 143 | err = db_export__thread(dbe, main_thread, machine, |
| 144 | comm); |
| 145 | if (err) |
Arnaldo Carvalho de Melo | b91fc39 | 2015-04-06 20:43:22 -0300 | [diff] [blame] | 146 | goto out_put; |
Adrian Hunter | 0db15b1 | 2014-10-23 13:45:13 +0300 | [diff] [blame] | 147 | if (comm) { |
| 148 | err = db_export__comm_thread(dbe, comm, thread); |
| 149 | if (err) |
Arnaldo Carvalho de Melo | b91fc39 | 2015-04-06 20:43:22 -0300 | [diff] [blame] | 150 | goto out_put; |
Adrian Hunter | 0db15b1 | 2014-10-23 13:45:13 +0300 | [diff] [blame] | 151 | } |
| 152 | } |
| 153 | main_thread_db_id = main_thread->db_id; |
Arnaldo Carvalho de Melo | b91fc39 | 2015-04-06 20:43:22 -0300 | [diff] [blame] | 154 | if (main_thread != thread) |
| 155 | thread__put(main_thread); |
Adrian Hunter | 0db15b1 | 2014-10-23 13:45:13 +0300 | [diff] [blame] | 156 | } |
| 157 | |
| 158 | if (dbe->export_thread) |
| 159 | return dbe->export_thread(dbe, thread, main_thread_db_id, |
| 160 | machine); |
| 161 | |
| 162 | return 0; |
Arnaldo Carvalho de Melo | b91fc39 | 2015-04-06 20:43:22 -0300 | [diff] [blame] | 163 | |
| 164 | out_put: |
| 165 | thread__put(main_thread); |
| 166 | return err; |
Adrian Hunter | 0db15b1 | 2014-10-23 13:45:13 +0300 | [diff] [blame] | 167 | } |
| 168 | |
| 169 | int db_export__comm(struct db_export *dbe, struct comm *comm, |
| 170 | struct thread *main_thread) |
| 171 | { |
| 172 | int err; |
| 173 | |
| 174 | if (comm->db_id) |
| 175 | return 0; |
| 176 | |
| 177 | comm->db_id = ++dbe->comm_last_db_id; |
| 178 | |
| 179 | if (dbe->export_comm) { |
Adrian Hunter | 758008b | 2014-10-30 16:09:48 +0200 | [diff] [blame] | 180 | if (main_thread->comm_set) |
| 181 | err = dbe->export_comm(dbe, comm); |
| 182 | else |
| 183 | err = db_export__defer_comm(dbe, comm); |
Adrian Hunter | 0db15b1 | 2014-10-23 13:45:13 +0300 | [diff] [blame] | 184 | if (err) |
| 185 | return err; |
| 186 | } |
| 187 | |
| 188 | return db_export__comm_thread(dbe, comm, main_thread); |
| 189 | } |
| 190 | |
| 191 | int db_export__comm_thread(struct db_export *dbe, struct comm *comm, |
| 192 | struct thread *thread) |
| 193 | { |
| 194 | u64 db_id; |
| 195 | |
| 196 | db_id = ++dbe->comm_thread_last_db_id; |
| 197 | |
| 198 | if (dbe->export_comm_thread) |
| 199 | return dbe->export_comm_thread(dbe, db_id, comm, thread); |
| 200 | |
| 201 | return 0; |
| 202 | } |
| 203 | |
| 204 | int db_export__dso(struct db_export *dbe, struct dso *dso, |
| 205 | struct machine *machine) |
| 206 | { |
| 207 | if (dso->db_id) |
| 208 | return 0; |
| 209 | |
| 210 | dso->db_id = ++dbe->dso_last_db_id; |
| 211 | |
| 212 | if (dbe->export_dso) |
| 213 | return dbe->export_dso(dbe, dso, machine); |
| 214 | |
| 215 | return 0; |
| 216 | } |
| 217 | |
| 218 | int db_export__symbol(struct db_export *dbe, struct symbol *sym, |
| 219 | struct dso *dso) |
| 220 | { |
| 221 | u64 *sym_db_id = symbol__priv(sym); |
| 222 | |
| 223 | if (*sym_db_id) |
| 224 | return 0; |
| 225 | |
| 226 | *sym_db_id = ++dbe->symbol_last_db_id; |
| 227 | |
| 228 | if (dbe->export_symbol) |
| 229 | return dbe->export_symbol(dbe, sym, dso); |
| 230 | |
| 231 | return 0; |
| 232 | } |
| 233 | |
| 234 | static struct thread *get_main_thread(struct machine *machine, struct thread *thread) |
| 235 | { |
| 236 | if (thread->pid_ == thread->tid) |
Adrian Hunter | 427cde3 | 2015-05-29 16:33:29 +0300 | [diff] [blame] | 237 | return thread__get(thread); |
Adrian Hunter | 0db15b1 | 2014-10-23 13:45:13 +0300 | [diff] [blame] | 238 | |
| 239 | if (thread->pid_ == -1) |
| 240 | return NULL; |
| 241 | |
| 242 | return machine__find_thread(machine, thread->pid_, thread->pid_); |
| 243 | } |
| 244 | |
| 245 | static int db_ids_from_al(struct db_export *dbe, struct addr_location *al, |
| 246 | u64 *dso_db_id, u64 *sym_db_id, u64 *offset) |
| 247 | { |
| 248 | int err; |
| 249 | |
| 250 | if (al->map) { |
| 251 | struct dso *dso = al->map->dso; |
| 252 | |
| 253 | err = db_export__dso(dbe, dso, al->machine); |
| 254 | if (err) |
| 255 | return err; |
| 256 | *dso_db_id = dso->db_id; |
| 257 | |
| 258 | if (!al->sym) { |
| 259 | al->sym = symbol__new(al->addr, 0, 0, "unknown"); |
| 260 | if (al->sym) |
| 261 | symbols__insert(&dso->symbols[al->map->type], |
| 262 | al->sym); |
| 263 | } |
| 264 | |
| 265 | if (al->sym) { |
| 266 | u64 *db_id = symbol__priv(al->sym); |
| 267 | |
| 268 | err = db_export__symbol(dbe, al->sym, dso); |
| 269 | if (err) |
| 270 | return err; |
| 271 | *sym_db_id = *db_id; |
| 272 | *offset = al->addr - al->sym->start; |
| 273 | } |
| 274 | } |
| 275 | |
| 276 | return 0; |
| 277 | } |
| 278 | |
Adrian Hunter | f2bff00 | 2014-10-30 16:09:43 +0200 | [diff] [blame] | 279 | int db_export__branch_type(struct db_export *dbe, u32 branch_type, |
| 280 | const char *name) |
| 281 | { |
| 282 | if (dbe->export_branch_type) |
| 283 | return dbe->export_branch_type(dbe, branch_type, name); |
| 284 | |
| 285 | return 0; |
| 286 | } |
| 287 | |
Adrian Hunter | 0db15b1 | 2014-10-23 13:45:13 +0300 | [diff] [blame] | 288 | int db_export__sample(struct db_export *dbe, union perf_event *event, |
| 289 | struct perf_sample *sample, struct perf_evsel *evsel, |
Arnaldo Carvalho de Melo | 7327259 | 2015-04-02 11:08:30 -0300 | [diff] [blame] | 290 | struct addr_location *al) |
Adrian Hunter | 0db15b1 | 2014-10-23 13:45:13 +0300 | [diff] [blame] | 291 | { |
Arnaldo Carvalho de Melo | 7327259 | 2015-04-02 11:08:30 -0300 | [diff] [blame] | 292 | struct thread* thread = al->thread; |
Adrian Hunter | 0db15b1 | 2014-10-23 13:45:13 +0300 | [diff] [blame] | 293 | struct export_sample es = { |
| 294 | .event = event, |
| 295 | .sample = sample, |
| 296 | .evsel = evsel, |
Adrian Hunter | 0db15b1 | 2014-10-23 13:45:13 +0300 | [diff] [blame] | 297 | .al = al, |
| 298 | }; |
| 299 | struct thread *main_thread; |
| 300 | struct comm *comm = NULL; |
| 301 | int err; |
| 302 | |
| 303 | err = db_export__evsel(dbe, evsel); |
| 304 | if (err) |
| 305 | return err; |
| 306 | |
| 307 | err = db_export__machine(dbe, al->machine); |
| 308 | if (err) |
| 309 | return err; |
| 310 | |
| 311 | main_thread = get_main_thread(al->machine, thread); |
| 312 | if (main_thread) |
| 313 | comm = machine__thread_exec_comm(al->machine, main_thread); |
| 314 | |
| 315 | err = db_export__thread(dbe, thread, al->machine, comm); |
| 316 | if (err) |
Adrian Hunter | 427cde3 | 2015-05-29 16:33:29 +0300 | [diff] [blame] | 317 | goto out_put; |
Adrian Hunter | 0db15b1 | 2014-10-23 13:45:13 +0300 | [diff] [blame] | 318 | |
| 319 | if (comm) { |
| 320 | err = db_export__comm(dbe, comm, main_thread); |
| 321 | if (err) |
Adrian Hunter | 427cde3 | 2015-05-29 16:33:29 +0300 | [diff] [blame] | 322 | goto out_put; |
Adrian Hunter | 0db15b1 | 2014-10-23 13:45:13 +0300 | [diff] [blame] | 323 | es.comm_db_id = comm->db_id; |
| 324 | } |
| 325 | |
| 326 | es.db_id = ++dbe->sample_last_db_id; |
| 327 | |
| 328 | err = db_ids_from_al(dbe, al, &es.dso_db_id, &es.sym_db_id, &es.offset); |
| 329 | if (err) |
Adrian Hunter | 427cde3 | 2015-05-29 16:33:29 +0300 | [diff] [blame] | 330 | goto out_put; |
Adrian Hunter | 0db15b1 | 2014-10-23 13:45:13 +0300 | [diff] [blame] | 331 | |
| 332 | if ((evsel->attr.sample_type & PERF_SAMPLE_ADDR) && |
| 333 | sample_addr_correlates_sym(&evsel->attr)) { |
| 334 | struct addr_location addr_al; |
| 335 | |
Arnaldo Carvalho de Melo | c2740a8 | 2016-03-22 18:44:46 -0300 | [diff] [blame^] | 336 | thread__resolve(thread, &addr_al, sample); |
Adrian Hunter | 0db15b1 | 2014-10-23 13:45:13 +0300 | [diff] [blame] | 337 | err = db_ids_from_al(dbe, &addr_al, &es.addr_dso_db_id, |
| 338 | &es.addr_sym_db_id, &es.addr_offset); |
| 339 | if (err) |
Adrian Hunter | 427cde3 | 2015-05-29 16:33:29 +0300 | [diff] [blame] | 340 | goto out_put; |
Adrian Hunter | 88f50d6 | 2014-10-30 16:09:46 +0200 | [diff] [blame] | 341 | if (dbe->crp) { |
| 342 | err = thread_stack__process(thread, comm, sample, al, |
| 343 | &addr_al, es.db_id, |
| 344 | dbe->crp); |
| 345 | if (err) |
Adrian Hunter | 427cde3 | 2015-05-29 16:33:29 +0300 | [diff] [blame] | 346 | goto out_put; |
Adrian Hunter | 88f50d6 | 2014-10-30 16:09:46 +0200 | [diff] [blame] | 347 | } |
Adrian Hunter | 0db15b1 | 2014-10-23 13:45:13 +0300 | [diff] [blame] | 348 | } |
| 349 | |
| 350 | if (dbe->export_sample) |
Adrian Hunter | 427cde3 | 2015-05-29 16:33:29 +0300 | [diff] [blame] | 351 | err = dbe->export_sample(dbe, &es); |
Adrian Hunter | 0db15b1 | 2014-10-23 13:45:13 +0300 | [diff] [blame] | 352 | |
Adrian Hunter | 427cde3 | 2015-05-29 16:33:29 +0300 | [diff] [blame] | 353 | out_put: |
| 354 | thread__put(main_thread); |
| 355 | return err; |
Adrian Hunter | 0db15b1 | 2014-10-23 13:45:13 +0300 | [diff] [blame] | 356 | } |
Adrian Hunter | f2bff00 | 2014-10-30 16:09:43 +0200 | [diff] [blame] | 357 | |
| 358 | static struct { |
| 359 | u32 branch_type; |
| 360 | const char *name; |
| 361 | } branch_types[] = { |
| 362 | {0, "no branch"}, |
| 363 | {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_CALL, "call"}, |
| 364 | {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_RETURN, "return"}, |
| 365 | {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_CONDITIONAL, "conditional jump"}, |
| 366 | {PERF_IP_FLAG_BRANCH, "unconditional jump"}, |
| 367 | {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_CALL | PERF_IP_FLAG_INTERRUPT, |
| 368 | "software interrupt"}, |
| 369 | {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_RETURN | PERF_IP_FLAG_INTERRUPT, |
| 370 | "return from interrupt"}, |
| 371 | {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_CALL | PERF_IP_FLAG_SYSCALLRET, |
| 372 | "system call"}, |
| 373 | {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_RETURN | PERF_IP_FLAG_SYSCALLRET, |
| 374 | "return from system call"}, |
| 375 | {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_ASYNC, "asynchronous branch"}, |
| 376 | {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_CALL | PERF_IP_FLAG_ASYNC | |
| 377 | PERF_IP_FLAG_INTERRUPT, "hardware interrupt"}, |
| 378 | {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_TX_ABORT, "transaction abort"}, |
| 379 | {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_TRACE_BEGIN, "trace begin"}, |
| 380 | {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_TRACE_END, "trace end"}, |
| 381 | {0, NULL} |
| 382 | }; |
| 383 | |
| 384 | int db_export__branch_types(struct db_export *dbe) |
| 385 | { |
| 386 | int i, err = 0; |
| 387 | |
| 388 | for (i = 0; branch_types[i].name ; i++) { |
| 389 | err = db_export__branch_type(dbe, branch_types[i].branch_type, |
| 390 | branch_types[i].name); |
| 391 | if (err) |
| 392 | break; |
| 393 | } |
| 394 | return err; |
| 395 | } |
Adrian Hunter | 88f50d6 | 2014-10-30 16:09:46 +0200 | [diff] [blame] | 396 | |
| 397 | int db_export__call_path(struct db_export *dbe, struct call_path *cp) |
| 398 | { |
| 399 | int err; |
| 400 | |
| 401 | if (cp->db_id) |
| 402 | return 0; |
| 403 | |
| 404 | if (cp->parent) { |
| 405 | err = db_export__call_path(dbe, cp->parent); |
| 406 | if (err) |
| 407 | return err; |
| 408 | } |
| 409 | |
| 410 | cp->db_id = ++dbe->call_path_last_db_id; |
| 411 | |
| 412 | if (dbe->export_call_path) |
| 413 | return dbe->export_call_path(dbe, cp); |
| 414 | |
| 415 | return 0; |
| 416 | } |
| 417 | |
| 418 | int db_export__call_return(struct db_export *dbe, struct call_return *cr) |
| 419 | { |
| 420 | int err; |
| 421 | |
| 422 | if (cr->db_id) |
| 423 | return 0; |
| 424 | |
| 425 | err = db_export__call_path(dbe, cr->cp); |
| 426 | if (err) |
| 427 | return err; |
| 428 | |
| 429 | cr->db_id = ++dbe->call_return_last_db_id; |
| 430 | |
| 431 | if (dbe->export_call_return) |
| 432 | return dbe->export_call_return(dbe, cr); |
| 433 | |
| 434 | return 0; |
| 435 | } |