| 1 | /* This file is part of the Linux Trace Toolkit viewer |
| 2 | * Copyright (C) 2003-2004 Michel Dagenais |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify |
| 5 | * it under the terms of the GNU General Public License Version 2 as |
| 6 | * published by the Free Software Foundation; |
| 7 | * |
| 8 | * This program is distributed in the hope that it will be useful, |
| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 11 | * GNU General Public License for more details. |
| 12 | * |
| 13 | * You should have received a copy of the GNU General Public License |
| 14 | * along with this program; if not, write to the Free Software |
| 15 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
| 16 | * MA 02111-1307, USA. |
| 17 | */ |
| 18 | |
| 19 | #ifdef HAVE_CONFIG_H |
| 20 | #include <config.h> |
| 21 | #endif |
| 22 | |
| 23 | #include <lttv/lttv.h> |
| 24 | #include <lttv/module.h> |
| 25 | #include <lttv/state.h> |
| 26 | #include <ltt/facility.h> |
| 27 | #include <ltt/trace.h> |
| 28 | #include <ltt/event.h> |
| 29 | #include <ltt/type.h> |
| 30 | #include <stdio.h> |
| 31 | #include <string.h> |
| 32 | |
| 33 | #define PREALLOCATED_EXECUTION_STACK 10 |
| 34 | |
| 35 | /* Facilities Quarks */ |
| 36 | |
| 37 | GQuark |
| 38 | LTT_FACILITY_KERNEL, |
| 39 | LTT_FACILITY_KERNEL_ARCH, |
| 40 | LTT_FACILITY_PROCESS, |
| 41 | LTT_FACILITY_FS, |
| 42 | LTT_FACILITY_STATEDUMP; |
| 43 | |
| 44 | /* Events Quarks */ |
| 45 | |
| 46 | GQuark |
| 47 | LTT_EVENT_SYSCALL_ENTRY, |
| 48 | LTT_EVENT_SYSCALL_EXIT, |
| 49 | LTT_EVENT_TRAP_ENTRY, |
| 50 | LTT_EVENT_TRAP_EXIT, |
| 51 | LTT_EVENT_IRQ_ENTRY, |
| 52 | LTT_EVENT_IRQ_EXIT, |
| 53 | LTT_EVENT_SOFT_IRQ_ENTRY, |
| 54 | LTT_EVENT_SOFT_IRQ_EXIT, |
| 55 | LTT_EVENT_SCHEDCHANGE, |
| 56 | LTT_EVENT_FORK, |
| 57 | LTT_EVENT_KERNEL_THREAD, |
| 58 | LTT_EVENT_EXIT, |
| 59 | LTT_EVENT_FREE, |
| 60 | LTT_EVENT_EXEC, |
| 61 | LTT_EVENT_ENUM_PROCESS_STATE; |
| 62 | |
| 63 | /* Fields Quarks */ |
| 64 | |
| 65 | GQuark |
| 66 | LTT_FIELD_SYSCALL_ID, |
| 67 | LTT_FIELD_TRAP_ID, |
| 68 | LTT_FIELD_IRQ_ID, |
| 69 | LTT_FIELD_SOFT_IRQ_ID, |
| 70 | LTT_FIELD_OUT, |
| 71 | LTT_FIELD_IN, |
| 72 | LTT_FIELD_OUT_STATE, |
| 73 | LTT_FIELD_PARENT_PID, |
| 74 | LTT_FIELD_CHILD_PID, |
| 75 | LTT_FIELD_PID, |
| 76 | LTT_FIELD_FILENAME, |
| 77 | LTT_FIELD_NAME, |
| 78 | LTT_FIELD_MODE, |
| 79 | LTT_FIELD_SUBMODE, |
| 80 | LTT_FIELD_STATUS; |
| 81 | |
| 82 | LttvExecutionMode |
| 83 | LTTV_STATE_MODE_UNKNOWN, |
| 84 | LTTV_STATE_USER_MODE, |
| 85 | LTTV_STATE_SYSCALL, |
| 86 | LTTV_STATE_TRAP, |
| 87 | LTTV_STATE_IRQ, |
| 88 | LTTV_STATE_SOFT_IRQ; |
| 89 | |
| 90 | LttvExecutionSubmode |
| 91 | LTTV_STATE_SUBMODE_UNKNOWN, |
| 92 | LTTV_STATE_SUBMODE_NONE; |
| 93 | |
| 94 | LttvProcessStatus |
| 95 | LTTV_STATE_UNNAMED, |
| 96 | LTTV_STATE_WAIT_FORK, |
| 97 | LTTV_STATE_WAIT_CPU, |
| 98 | LTTV_STATE_EXIT, |
| 99 | LTTV_STATE_ZOMBIE, |
| 100 | LTTV_STATE_WAIT, |
| 101 | LTTV_STATE_RUN, |
| 102 | LTTV_STATE_DEAD; |
| 103 | |
| 104 | static GQuark |
| 105 | LTTV_STATE_TRACEFILES, |
| 106 | LTTV_STATE_PROCESSES, |
| 107 | LTTV_STATE_PROCESS, |
| 108 | LTTV_STATE_RUNNING_PROCESS, |
| 109 | LTTV_STATE_EVENT, |
| 110 | LTTV_STATE_SAVED_STATES, |
| 111 | LTTV_STATE_SAVED_STATES_TIME, |
| 112 | LTTV_STATE_TIME, |
| 113 | LTTV_STATE_HOOKS, |
| 114 | LTTV_STATE_NAME_TABLES, |
| 115 | LTTV_STATE_TRACE_STATE_USE_COUNT; |
| 116 | |
| 117 | static void create_max_time(LttvTraceState *tcs); |
| 118 | |
| 119 | static void get_max_time(LttvTraceState *tcs); |
| 120 | |
| 121 | static void free_max_time(LttvTraceState *tcs); |
| 122 | |
| 123 | static void create_name_tables(LttvTraceState *tcs); |
| 124 | |
| 125 | static void get_name_tables(LttvTraceState *tcs); |
| 126 | |
| 127 | static void free_name_tables(LttvTraceState *tcs); |
| 128 | |
| 129 | static void free_saved_state(LttvTraceState *tcs); |
| 130 | |
| 131 | static void lttv_state_free_process_table(GHashTable *processes); |
| 132 | |
| 133 | |
| 134 | void lttv_state_save(LttvTraceState *self, LttvAttribute *container) |
| 135 | { |
| 136 | LTTV_TRACE_STATE_GET_CLASS(self)->state_save(self, container); |
| 137 | } |
| 138 | |
| 139 | |
| 140 | void lttv_state_restore(LttvTraceState *self, LttvAttribute *container) |
| 141 | { |
| 142 | LTTV_TRACE_STATE_GET_CLASS(self)->state_restore(self, container); |
| 143 | } |
| 144 | |
| 145 | |
| 146 | void lttv_state_state_saved_free(LttvTraceState *self, |
| 147 | LttvAttribute *container) |
| 148 | { |
| 149 | LTTV_TRACE_STATE_GET_CLASS(self)->state_saved_free(self, container); |
| 150 | } |
| 151 | |
| 152 | |
| 153 | guint process_hash(gconstpointer key) |
| 154 | { |
| 155 | guint pid = ((const LttvProcessState *)key)->pid; |
| 156 | return (pid>>8 ^ pid>>4 ^ pid>>2 ^ pid) ; |
| 157 | } |
| 158 | |
| 159 | |
| 160 | /* If the hash table hash function is well distributed, |
| 161 | * the process_equal should compare different pid */ |
| 162 | gboolean process_equal(gconstpointer a, gconstpointer b) |
| 163 | { |
| 164 | const LttvProcessState *process_a, *process_b; |
| 165 | gboolean ret = TRUE; |
| 166 | |
| 167 | process_a = (const LttvProcessState *)a; |
| 168 | process_b = (const LttvProcessState *)b; |
| 169 | |
| 170 | if(likely(process_a->pid != process_b->pid)) ret = FALSE; |
| 171 | else if(likely(process_a->pid == 0 && |
| 172 | process_a->cpu != process_b->cpu)) ret = FALSE; |
| 173 | |
| 174 | return ret; |
| 175 | } |
| 176 | |
| 177 | |
| 178 | static void |
| 179 | restore_init_state(LttvTraceState *self) |
| 180 | { |
| 181 | guint i, nb_cpus; |
| 182 | |
| 183 | LttvTracefileState *tfcs; |
| 184 | |
| 185 | /* Free the process tables */ |
| 186 | if(self->processes != NULL) lttv_state_free_process_table(self->processes); |
| 187 | self->processes = g_hash_table_new(process_hash, process_equal); |
| 188 | self->nb_event = 0; |
| 189 | |
| 190 | /* Seek time to beginning */ |
| 191 | // Mathieu : fix : don't seek traceset here : causes inconsistency in seek |
| 192 | // closest. It's the tracecontext job to seek the trace to the beginning |
| 193 | // anyway : the init state might be used at the middle of the trace as well... |
| 194 | //g_tree_destroy(self->parent.ts_context->pqueue); |
| 195 | //self->parent.ts_context->pqueue = g_tree_new(compare_tracefile); |
| 196 | |
| 197 | |
| 198 | //lttv_process_trace_seek_time(&self->parent, ltt_time_zero); |
| 199 | |
| 200 | nb_cpus = ltt_trace_get_num_cpu(self->parent.t); |
| 201 | |
| 202 | /* Put the per cpu running_process to beginning state : process 0. */ |
| 203 | for(i=0; i< nb_cpus; i++) { |
| 204 | self->running_process[i] = lttv_state_create_process(self, NULL, i, 0, |
| 205 | LTTV_STATE_UNNAMED, <t_time_zero); |
| 206 | self->running_process[i]->state->s = LTTV_STATE_RUN; |
| 207 | self->running_process[i]->cpu = i; |
| 208 | } |
| 209 | |
| 210 | #if 0 |
| 211 | nb_tracefile = self->parent.tracefiles->len; |
| 212 | |
| 213 | for(i = 0 ; i < nb_tracefile ; i++) { |
| 214 | tfcs = |
| 215 | LTTV_TRACEFILE_STATE(g_array_index(self->parent.tracefiles, |
| 216 | LttvTracefileContext*, i)); |
| 217 | ltt_trace_time_span_get(self->parent.t, &tfcs->parent.timestamp, NULL); |
| 218 | // tfcs->saved_position = 0; |
| 219 | tfcs->process = lttv_state_create_process(tfcs, NULL,0); |
| 220 | tfcs->process->state->s = LTTV_STATE_RUN; |
| 221 | tfcs->process->last_cpu = tfcs->cpu_name; |
| 222 | tfcs->process->last_cpu_index = ltt_tracefile_num(((LttvTracefileContext*)tfcs)->tf); |
| 223 | } |
| 224 | #endif //0 |
| 225 | } |
| 226 | |
| 227 | //static LttTime time_zero = {0,0}; |
| 228 | |
| 229 | static void |
| 230 | init(LttvTracesetState *self, LttvTraceset *ts) |
| 231 | { |
| 232 | guint i, j, nb_trace, nb_tracefile; |
| 233 | |
| 234 | LttvTraceContext *tc; |
| 235 | |
| 236 | LttvTraceState *tcs; |
| 237 | |
| 238 | LttvTracefileState *tfcs; |
| 239 | |
| 240 | LttvAttributeValue v; |
| 241 | |
| 242 | LTTV_TRACESET_CONTEXT_CLASS(g_type_class_peek(LTTV_TRACESET_CONTEXT_TYPE))-> |
| 243 | init((LttvTracesetContext *)self, ts); |
| 244 | |
| 245 | nb_trace = lttv_traceset_number(ts); |
| 246 | for(i = 0 ; i < nb_trace ; i++) { |
| 247 | tc = self->parent.traces[i]; |
| 248 | tcs = LTTV_TRACE_STATE(tc); |
| 249 | tcs->save_interval = LTTV_STATE_SAVE_INTERVAL; |
| 250 | lttv_attribute_find(tcs->parent.t_a, LTTV_STATE_TRACE_STATE_USE_COUNT, |
| 251 | LTTV_UINT, &v); |
| 252 | (*v.v_uint)++; |
| 253 | |
| 254 | if(*(v.v_uint) == 1) { |
| 255 | create_name_tables(tcs); |
| 256 | create_max_time(tcs); |
| 257 | } |
| 258 | get_name_tables(tcs); |
| 259 | get_max_time(tcs); |
| 260 | |
| 261 | nb_tracefile = tc->tracefiles->len; |
| 262 | #if 0 |
| 263 | for(j = 0 ; j < nb_tracefile ; j++) { |
| 264 | tfcs = |
| 265 | LTTV_TRACEFILE_STATE(g_array_index(tc->tracefiles, |
| 266 | LttvTracefileContext*, j)); |
| 267 | tfcs->tracefile_name = ltt_tracefile_name(tfcs->parent.tf); |
| 268 | } |
| 269 | #endif //0 |
| 270 | tcs->processes = NULL; |
| 271 | tcs->running_process = g_new(LttvProcessState*, |
| 272 | ltt_trace_get_num_cpu(tc->t)); |
| 273 | restore_init_state(tcs); |
| 274 | } |
| 275 | } |
| 276 | |
| 277 | |
| 278 | static void |
| 279 | fini(LttvTracesetState *self) |
| 280 | { |
| 281 | guint i, nb_trace; |
| 282 | |
| 283 | LttvTraceState *tcs; |
| 284 | |
| 285 | LttvTracefileState *tfcs; |
| 286 | |
| 287 | LttvAttributeValue v; |
| 288 | |
| 289 | nb_trace = lttv_traceset_number(LTTV_TRACESET_CONTEXT(self)->ts); |
| 290 | for(i = 0 ; i < nb_trace ; i++) { |
| 291 | tcs = (LttvTraceState *)(LTTV_TRACESET_CONTEXT(self)->traces[i]); |
| 292 | lttv_attribute_find(tcs->parent.t_a, LTTV_STATE_TRACE_STATE_USE_COUNT, |
| 293 | LTTV_UINT, &v); |
| 294 | |
| 295 | g_assert(*(v.v_uint) != 0); |
| 296 | (*v.v_uint)--; |
| 297 | |
| 298 | if(*(v.v_uint) == 0) { |
| 299 | free_name_tables(tcs); |
| 300 | free_max_time(tcs); |
| 301 | free_saved_state(tcs); |
| 302 | } |
| 303 | g_free(tcs->running_process); |
| 304 | tcs->running_process = NULL; |
| 305 | lttv_state_free_process_table(tcs->processes); |
| 306 | tcs->processes = NULL; |
| 307 | } |
| 308 | LTTV_TRACESET_CONTEXT_CLASS(g_type_class_peek(LTTV_TRACESET_CONTEXT_TYPE))-> |
| 309 | fini((LttvTracesetContext *)self); |
| 310 | } |
| 311 | |
| 312 | |
| 313 | static LttvTracesetContext * |
| 314 | new_traceset_context(LttvTracesetContext *self) |
| 315 | { |
| 316 | return LTTV_TRACESET_CONTEXT(g_object_new(LTTV_TRACESET_STATE_TYPE, NULL)); |
| 317 | } |
| 318 | |
| 319 | |
| 320 | static LttvTraceContext * |
| 321 | new_trace_context(LttvTracesetContext *self) |
| 322 | { |
| 323 | return LTTV_TRACE_CONTEXT(g_object_new(LTTV_TRACE_STATE_TYPE, NULL)); |
| 324 | } |
| 325 | |
| 326 | |
| 327 | static LttvTracefileContext * |
| 328 | new_tracefile_context(LttvTracesetContext *self) |
| 329 | { |
| 330 | return LTTV_TRACEFILE_CONTEXT(g_object_new(LTTV_TRACEFILE_STATE_TYPE, NULL)); |
| 331 | } |
| 332 | |
| 333 | |
| 334 | /* Write the process state of the trace */ |
| 335 | |
| 336 | static void write_process_state(gpointer key, gpointer value, |
| 337 | gpointer user_data) |
| 338 | { |
| 339 | LttvProcessState *process; |
| 340 | |
| 341 | LttvExecutionState *es; |
| 342 | |
| 343 | FILE *fp = (FILE *)user_data; |
| 344 | |
| 345 | guint i; |
| 346 | |
| 347 | process = (LttvProcessState *)value; |
| 348 | fprintf(fp, |
| 349 | " <PROCESS CORE=%p PID=%u PPID=%u CTIME_S=%lu CTIME_NS=%lu NAME=\"%s\" CPU=\"%u\">\n", |
| 350 | process, process->pid, process->ppid, process->creation_time.tv_sec, |
| 351 | process->creation_time.tv_nsec, g_quark_to_string(process->name), |
| 352 | process->cpu); |
| 353 | |
| 354 | for(i = 0 ; i < process->execution_stack->len; i++) { |
| 355 | es = &g_array_index(process->execution_stack, LttvExecutionState, i); |
| 356 | fprintf(fp, " <ES MODE=\"%s\" SUBMODE=\"%s\" ENTRY_S=%lu ENTRY_NS=%lu", |
| 357 | g_quark_to_string(es->t), g_quark_to_string(es->n), |
| 358 | es->entry.tv_sec, es->entry.tv_nsec); |
| 359 | fprintf(fp, " CHANGE_S=%lu CHANGE_NS=%lu STATUS=\"%s\"/>\n", |
| 360 | es->change.tv_sec, es->change.tv_nsec, g_quark_to_string(es->s)); |
| 361 | } |
| 362 | fprintf(fp, " </PROCESS>\n"); |
| 363 | } |
| 364 | |
| 365 | |
| 366 | void lttv_state_write(LttvTraceState *self, LttTime t, FILE *fp) |
| 367 | { |
| 368 | guint i, nb_tracefile, nb_block, offset; |
| 369 | guint64 tsc; |
| 370 | |
| 371 | LttvTracefileState *tfcs; |
| 372 | |
| 373 | LttTracefile *tf; |
| 374 | |
| 375 | LttEventPosition *ep; |
| 376 | |
| 377 | guint nb_cpus; |
| 378 | |
| 379 | ep = ltt_event_position_new(); |
| 380 | |
| 381 | fprintf(fp,"<PROCESS_STATE TIME_S=%lu TIME_NS=%lu>\n", t.tv_sec, t.tv_nsec); |
| 382 | |
| 383 | g_hash_table_foreach(self->processes, write_process_state, fp); |
| 384 | |
| 385 | nb_cpus = ltt_trace_get_num_cpu(self->parent.t); |
| 386 | for(i=0;i<nb_cpus;i++) { |
| 387 | fprintf(fp,"<CPU NUM=%u RUNNING_PROCESS=%u>\n", |
| 388 | i, self->running_process[i]->pid); |
| 389 | } |
| 390 | |
| 391 | nb_tracefile = self->parent.tracefiles->len; |
| 392 | |
| 393 | for(i = 0 ; i < nb_tracefile ; i++) { |
| 394 | tfcs = |
| 395 | LTTV_TRACEFILE_STATE(g_array_index(self->parent.tracefiles, |
| 396 | LttvTracefileContext*, i)); |
| 397 | fprintf(fp, " <TRACEFILE TIMESTAMP_S=%lu TIMESTAMP_NS=%lu", |
| 398 | tfcs->parent.timestamp.tv_sec, |
| 399 | tfcs->parent.timestamp.tv_nsec); |
| 400 | LttEvent *e = ltt_tracefile_get_event(tfcs->parent.tf); |
| 401 | if(e == NULL) fprintf(fp,"/>\n"); |
| 402 | else { |
| 403 | ltt_event_position(e, ep); |
| 404 | ltt_event_position_get(ep, &tf, &nb_block, &offset, &tsc); |
| 405 | fprintf(fp, " BLOCK=%u OFFSET=%u TSC=%llu/>\n", nb_block, offset, |
| 406 | tsc); |
| 407 | } |
| 408 | } |
| 409 | g_free(ep); |
| 410 | fprintf(fp,"</PROCESS_STATE>"); |
| 411 | } |
| 412 | |
| 413 | |
| 414 | /* Copy each process from an existing hash table to a new one */ |
| 415 | |
| 416 | static void copy_process_state(gpointer key, gpointer value,gpointer user_data) |
| 417 | { |
| 418 | LttvProcessState *process, *new_process; |
| 419 | |
| 420 | GHashTable *new_processes = (GHashTable *)user_data; |
| 421 | |
| 422 | guint i; |
| 423 | |
| 424 | process = (LttvProcessState *)value; |
| 425 | new_process = g_new(LttvProcessState, 1); |
| 426 | *new_process = *process; |
| 427 | new_process->execution_stack = g_array_sized_new(FALSE, FALSE, |
| 428 | sizeof(LttvExecutionState), PREALLOCATED_EXECUTION_STACK); |
| 429 | new_process->execution_stack = |
| 430 | g_array_set_size(new_process->execution_stack, |
| 431 | process->execution_stack->len); |
| 432 | for(i = 0 ; i < process->execution_stack->len; i++) { |
| 433 | g_array_index(new_process->execution_stack, LttvExecutionState, i) = |
| 434 | g_array_index(process->execution_stack, LttvExecutionState, i); |
| 435 | } |
| 436 | new_process->state = &g_array_index(new_process->execution_stack, |
| 437 | LttvExecutionState, new_process->execution_stack->len - 1); |
| 438 | g_hash_table_insert(new_processes, new_process, new_process); |
| 439 | } |
| 440 | |
| 441 | |
| 442 | static GHashTable *lttv_state_copy_process_table(GHashTable *processes) |
| 443 | { |
| 444 | GHashTable *new_processes = g_hash_table_new(process_hash, process_equal); |
| 445 | |
| 446 | g_hash_table_foreach(processes, copy_process_state, new_processes); |
| 447 | return new_processes; |
| 448 | } |
| 449 | |
| 450 | |
| 451 | /* The saved state for each trace contains a member "processes", which |
| 452 | stores a copy of the process table, and a member "tracefiles" with |
| 453 | one entry per tracefile. Each tracefile has a "process" member pointing |
| 454 | to the current process and a "position" member storing the tracefile |
| 455 | position (needed to seek to the current "next" event. */ |
| 456 | |
| 457 | static void state_save(LttvTraceState *self, LttvAttribute *container) |
| 458 | { |
| 459 | guint i, nb_tracefile, nb_cpus; |
| 460 | |
| 461 | LttvTracefileState *tfcs; |
| 462 | |
| 463 | LttvAttribute *tracefiles_tree, *tracefile_tree; |
| 464 | |
| 465 | guint *running_process; |
| 466 | |
| 467 | LttvAttributeType type; |
| 468 | |
| 469 | LttvAttributeValue value; |
| 470 | |
| 471 | LttvAttributeName name; |
| 472 | |
| 473 | LttEventPosition *ep; |
| 474 | |
| 475 | tracefiles_tree = lttv_attribute_find_subdir(container, |
| 476 | LTTV_STATE_TRACEFILES); |
| 477 | |
| 478 | value = lttv_attribute_add(container, LTTV_STATE_PROCESSES, |
| 479 | LTTV_POINTER); |
| 480 | *(value.v_pointer) = lttv_state_copy_process_table(self->processes); |
| 481 | |
| 482 | /* Add the currently running processes array */ |
| 483 | nb_cpus = ltt_trace_get_num_cpu(self->parent.t); |
| 484 | running_process = g_new(guint, nb_cpus); |
| 485 | for(i=0;i<nb_cpus;i++) { |
| 486 | running_process[i] = self->running_process[i]->pid; |
| 487 | } |
| 488 | value = lttv_attribute_add(container, LTTV_STATE_RUNNING_PROCESS, |
| 489 | LTTV_POINTER); |
| 490 | *(value.v_pointer) = running_process; |
| 491 | |
| 492 | g_info("State save"); |
| 493 | |
| 494 | nb_tracefile = self->parent.tracefiles->len; |
| 495 | |
| 496 | for(i = 0 ; i < nb_tracefile ; i++) { |
| 497 | tfcs = |
| 498 | LTTV_TRACEFILE_STATE(g_array_index(self->parent.tracefiles, |
| 499 | LttvTracefileContext*, i)); |
| 500 | tracefile_tree = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL); |
| 501 | value = lttv_attribute_add(tracefiles_tree, i, |
| 502 | LTTV_GOBJECT); |
| 503 | *(value.v_gobject) = (GObject *)tracefile_tree; |
| 504 | #if 0 |
| 505 | value = lttv_attribute_add(tracefile_tree, LTTV_STATE_PROCESS, |
| 506 | LTTV_UINT); |
| 507 | *(value.v_uint) = tfcs->process->pid; |
| 508 | #endif //0 |
| 509 | value = lttv_attribute_add(tracefile_tree, LTTV_STATE_EVENT, |
| 510 | LTTV_POINTER); |
| 511 | /* Only save the position if the tfs has not infinite time. */ |
| 512 | //if(!g_tree_lookup(self->parent.ts_context->pqueue, &tfcs->parent) |
| 513 | // && current_tfcs != tfcs) { |
| 514 | if(ltt_time_compare(tfcs->parent.timestamp, ltt_time_infinite) == 0) { |
| 515 | *(value.v_pointer) = NULL; |
| 516 | } else { |
| 517 | LttEvent *e = ltt_tracefile_get_event(tfcs->parent.tf); |
| 518 | ep = ltt_event_position_new(); |
| 519 | ltt_event_position(e, ep); |
| 520 | *(value.v_pointer) = ep; |
| 521 | |
| 522 | guint nb_block, offset; |
| 523 | guint64 tsc; |
| 524 | LttTracefile *tf; |
| 525 | ltt_event_position_get(ep, &tf, &nb_block, &offset, &tsc); |
| 526 | g_info("Block %u offset %u tsc %llu time %lu.%lu", nb_block, offset, |
| 527 | tsc, |
| 528 | tfcs->parent.timestamp.tv_sec, tfcs->parent.timestamp.tv_nsec); |
| 529 | } |
| 530 | } |
| 531 | } |
| 532 | |
| 533 | |
| 534 | static void state_restore(LttvTraceState *self, LttvAttribute *container) |
| 535 | { |
| 536 | guint i, nb_tracefile, pid, nb_cpus; |
| 537 | |
| 538 | LttvTracefileState *tfcs; |
| 539 | |
| 540 | LttvAttribute *tracefiles_tree, *tracefile_tree; |
| 541 | |
| 542 | guint *running_process; |
| 543 | |
| 544 | LttvAttributeType type; |
| 545 | |
| 546 | LttvAttributeValue value; |
| 547 | |
| 548 | LttvAttributeName name; |
| 549 | |
| 550 | LttEventPosition *ep; |
| 551 | |
| 552 | LttvTracesetContext *tsc = self->parent.ts_context; |
| 553 | |
| 554 | tracefiles_tree = lttv_attribute_find_subdir(container, |
| 555 | LTTV_STATE_TRACEFILES); |
| 556 | |
| 557 | type = lttv_attribute_get_by_name(container, LTTV_STATE_PROCESSES, |
| 558 | &value); |
| 559 | g_assert(type == LTTV_POINTER); |
| 560 | lttv_state_free_process_table(self->processes); |
| 561 | self->processes = lttv_state_copy_process_table(*(value.v_pointer)); |
| 562 | |
| 563 | /* Add the currently running processes array */ |
| 564 | nb_cpus = ltt_trace_get_num_cpu(self->parent.t); |
| 565 | type = lttv_attribute_get_by_name(container, LTTV_STATE_RUNNING_PROCESS, |
| 566 | &value); |
| 567 | g_assert(type == LTTV_POINTER); |
| 568 | running_process = *(value.v_pointer); |
| 569 | for(i=0;i<nb_cpus;i++) { |
| 570 | pid = running_process[i]; |
| 571 | self->running_process[i] = lttv_state_find_process(self, i, pid); |
| 572 | g_assert(self->running_process[i] != NULL); |
| 573 | } |
| 574 | |
| 575 | |
| 576 | nb_tracefile = self->parent.tracefiles->len; |
| 577 | |
| 578 | //g_tree_destroy(tsc->pqueue); |
| 579 | //tsc->pqueue = g_tree_new(compare_tracefile); |
| 580 | |
| 581 | for(i = 0 ; i < nb_tracefile ; i++) { |
| 582 | tfcs = |
| 583 | LTTV_TRACEFILE_STATE(g_array_index(self->parent.tracefiles, |
| 584 | LttvTracefileContext*, i)); |
| 585 | type = lttv_attribute_get(tracefiles_tree, i, &name, &value); |
| 586 | g_assert(type == LTTV_GOBJECT); |
| 587 | tracefile_tree = *((LttvAttribute **)(value.v_gobject)); |
| 588 | #if 0 |
| 589 | type = lttv_attribute_get_by_name(tracefile_tree, LTTV_STATE_PROCESS, |
| 590 | &value); |
| 591 | g_assert(type == LTTV_UINT); |
| 592 | pid = *(value.v_uint); |
| 593 | tfcs->process = lttv_state_find_process_or_create(tfcs, pid); |
| 594 | #endif //0 |
| 595 | type = lttv_attribute_get_by_name(tracefile_tree, LTTV_STATE_EVENT, |
| 596 | &value); |
| 597 | g_assert(type == LTTV_POINTER); |
| 598 | //g_assert(*(value.v_pointer) != NULL); |
| 599 | ep = *(value.v_pointer); |
| 600 | g_assert(tfcs->parent.t_context != NULL); |
| 601 | |
| 602 | LttvTracefileContext *tfc = LTTV_TRACEFILE_CONTEXT(tfcs); |
| 603 | g_tree_remove(tsc->pqueue, tfc); |
| 604 | |
| 605 | if(ep != NULL) { |
| 606 | g_assert(ltt_tracefile_seek_position(tfc->tf, ep) == 0); |
| 607 | tfc->timestamp = ltt_event_time(ltt_tracefile_get_event(tfc->tf)); |
| 608 | g_assert(ltt_time_compare(tfc->timestamp, ltt_time_infinite) != 0); |
| 609 | g_tree_insert(tsc->pqueue, tfc, tfc); |
| 610 | g_info("Restoring state for a tf at time %lu.%lu", tfc->timestamp.tv_sec, tfc->timestamp.tv_nsec); |
| 611 | } else { |
| 612 | tfc->timestamp = ltt_time_infinite; |
| 613 | } |
| 614 | } |
| 615 | } |
| 616 | |
| 617 | |
| 618 | static void state_saved_free(LttvTraceState *self, LttvAttribute *container) |
| 619 | { |
| 620 | guint i, nb_tracefile, nb_cpus; |
| 621 | |
| 622 | LttvTracefileState *tfcs; |
| 623 | |
| 624 | LttvAttribute *tracefiles_tree, *tracefile_tree; |
| 625 | |
| 626 | guint *running_process; |
| 627 | |
| 628 | LttvAttributeType type; |
| 629 | |
| 630 | LttvAttributeValue value; |
| 631 | |
| 632 | LttvAttributeName name; |
| 633 | |
| 634 | LttEventPosition *ep; |
| 635 | |
| 636 | tracefiles_tree = lttv_attribute_find_subdir(container, |
| 637 | LTTV_STATE_TRACEFILES); |
| 638 | g_object_ref(G_OBJECT(tracefiles_tree)); |
| 639 | lttv_attribute_remove_by_name(container, LTTV_STATE_TRACEFILES); |
| 640 | |
| 641 | type = lttv_attribute_get_by_name(container, LTTV_STATE_PROCESSES, |
| 642 | &value); |
| 643 | g_assert(type == LTTV_POINTER); |
| 644 | lttv_state_free_process_table(*(value.v_pointer)); |
| 645 | *(value.v_pointer) = NULL; |
| 646 | lttv_attribute_remove_by_name(container, LTTV_STATE_PROCESSES); |
| 647 | |
| 648 | /* Free running processes array */ |
| 649 | nb_cpus = ltt_trace_get_num_cpu(self->parent.t); |
| 650 | type = lttv_attribute_get_by_name(container, LTTV_STATE_RUNNING_PROCESS, |
| 651 | &value); |
| 652 | g_assert(type == LTTV_POINTER); |
| 653 | running_process = *(value.v_pointer); |
| 654 | g_free(running_process); |
| 655 | |
| 656 | nb_tracefile = self->parent.tracefiles->len; |
| 657 | |
| 658 | for(i = 0 ; i < nb_tracefile ; i++) { |
| 659 | tfcs = |
| 660 | LTTV_TRACEFILE_STATE(g_array_index(self->parent.tracefiles, |
| 661 | LttvTracefileContext*, i)); |
| 662 | type = lttv_attribute_get(tracefiles_tree, i, &name, &value); |
| 663 | g_assert(type == LTTV_GOBJECT); |
| 664 | tracefile_tree = *((LttvAttribute **)(value.v_gobject)); |
| 665 | |
| 666 | type = lttv_attribute_get_by_name(tracefile_tree, LTTV_STATE_EVENT, |
| 667 | &value); |
| 668 | g_assert(type == LTTV_POINTER); |
| 669 | if(*(value.v_pointer) != NULL) g_free(*(value.v_pointer)); |
| 670 | } |
| 671 | g_object_unref(G_OBJECT(tracefiles_tree)); |
| 672 | } |
| 673 | |
| 674 | |
| 675 | static void free_saved_state(LttvTraceState *self) |
| 676 | { |
| 677 | guint i, nb; |
| 678 | |
| 679 | LttvAttributeType type; |
| 680 | |
| 681 | LttvAttributeValue value; |
| 682 | |
| 683 | LttvAttributeName name; |
| 684 | |
| 685 | LttvAttribute *saved_states; |
| 686 | |
| 687 | saved_states = lttv_attribute_find_subdir(self->parent.t_a, |
| 688 | LTTV_STATE_SAVED_STATES); |
| 689 | |
| 690 | nb = lttv_attribute_get_number(saved_states); |
| 691 | for(i = 0 ; i < nb ; i++) { |
| 692 | type = lttv_attribute_get(saved_states, i, &name, &value); |
| 693 | g_assert(type == LTTV_GOBJECT); |
| 694 | state_saved_free(self, *((LttvAttribute **)value.v_gobject)); |
| 695 | } |
| 696 | |
| 697 | lttv_attribute_remove_by_name(self->parent.t_a, LTTV_STATE_SAVED_STATES); |
| 698 | } |
| 699 | |
| 700 | |
| 701 | static void |
| 702 | create_max_time(LttvTraceState *tcs) |
| 703 | { |
| 704 | LttvAttributeValue v; |
| 705 | |
| 706 | lttv_attribute_find(tcs->parent.t_a, LTTV_STATE_SAVED_STATES_TIME, |
| 707 | LTTV_POINTER, &v); |
| 708 | g_assert(*(v.v_pointer) == NULL); |
| 709 | *(v.v_pointer) = g_new(LttTime,1); |
| 710 | *((LttTime *)*(v.v_pointer)) = ltt_time_zero; |
| 711 | } |
| 712 | |
| 713 | |
| 714 | static void |
| 715 | get_max_time(LttvTraceState *tcs) |
| 716 | { |
| 717 | LttvAttributeValue v; |
| 718 | |
| 719 | lttv_attribute_find(tcs->parent.t_a, LTTV_STATE_SAVED_STATES_TIME, |
| 720 | LTTV_POINTER, &v); |
| 721 | g_assert(*(v.v_pointer) != NULL); |
| 722 | tcs->max_time_state_recomputed_in_seek = (LttTime *)*(v.v_pointer); |
| 723 | } |
| 724 | |
| 725 | |
| 726 | static void |
| 727 | free_max_time(LttvTraceState *tcs) |
| 728 | { |
| 729 | LttvAttributeValue v; |
| 730 | |
| 731 | lttv_attribute_find(tcs->parent.t_a, LTTV_STATE_SAVED_STATES_TIME, |
| 732 | LTTV_POINTER, &v); |
| 733 | g_free(*(v.v_pointer)); |
| 734 | *(v.v_pointer) = NULL; |
| 735 | } |
| 736 | |
| 737 | |
| 738 | typedef struct _LttvNameTables { |
| 739 | // FIXME GQuark *eventtype_names; |
| 740 | GQuark *syscall_names; |
| 741 | GQuark *trap_names; |
| 742 | GQuark *irq_names; |
| 743 | GQuark *soft_irq_names; |
| 744 | } LttvNameTables; |
| 745 | |
| 746 | |
| 747 | static void |
| 748 | create_name_tables(LttvTraceState *tcs) |
| 749 | { |
| 750 | int i, nb; |
| 751 | |
| 752 | GQuark f_name, e_name; |
| 753 | |
| 754 | LttvTraceHook h; |
| 755 | |
| 756 | LttvTraceHookByFacility *thf; |
| 757 | |
| 758 | LttEventType *et; |
| 759 | |
| 760 | LttType *t; |
| 761 | |
| 762 | GString *fe_name = g_string_new(""); |
| 763 | |
| 764 | LttvNameTables *name_tables = g_new(LttvNameTables, 1); |
| 765 | |
| 766 | LttvAttributeValue v; |
| 767 | |
| 768 | lttv_attribute_find(tcs->parent.t_a, LTTV_STATE_NAME_TABLES, |
| 769 | LTTV_POINTER, &v); |
| 770 | g_assert(*(v.v_pointer) == NULL); |
| 771 | *(v.v_pointer) = name_tables; |
| 772 | #if 0 // Use iteration over the facilities_by_name and then list all event |
| 773 | // types of each facility |
| 774 | nb = ltt_trace_eventtype_number(tcs->parent.t); |
| 775 | name_tables->eventtype_names = g_new(GQuark, nb); |
| 776 | for(i = 0 ; i < nb ; i++) { |
| 777 | et = ltt_trace_eventtype_get(tcs->parent.t, i); |
| 778 | e_name = ltt_eventtype_name(et); |
| 779 | f_name = ltt_facility_name(ltt_eventtype_facility(et)); |
| 780 | g_string_printf(fe_name, "%s.%s", f_name, e_name); |
| 781 | name_tables->eventtype_names[i] = g_quark_from_string(fe_name->str); |
| 782 | } |
| 783 | #endif //0 |
| 784 | if(lttv_trace_find_hook(tcs->parent.t, |
| 785 | LTT_FACILITY_KERNEL_ARCH, LTT_EVENT_SYSCALL_ENTRY, |
| 786 | LTT_FIELD_SYSCALL_ID, 0, 0, |
| 787 | NULL, NULL, &h)) |
| 788 | return; |
| 789 | |
| 790 | thf = lttv_trace_hook_get_first(&h); |
| 791 | |
| 792 | t = ltt_field_type(thf->f1); |
| 793 | nb = ltt_type_element_number(t); |
| 794 | |
| 795 | lttv_trace_hook_destroy(&h); |
| 796 | |
| 797 | name_tables->syscall_names = g_new(GQuark, nb); |
| 798 | |
| 799 | for(i = 0 ; i < nb ; i++) { |
| 800 | name_tables->syscall_names[i] = ltt_enum_string_get(t, i); |
| 801 | } |
| 802 | |
| 803 | //name_tables->syscall_names = g_new(GQuark, 256); |
| 804 | //for(i = 0 ; i < 256 ; i++) { |
| 805 | // g_string_printf(fe_name, "syscall %d", i); |
| 806 | // name_tables->syscall_names[i] = g_quark_from_string(fe_name->str); |
| 807 | //} |
| 808 | |
| 809 | if(lttv_trace_find_hook(tcs->parent.t, LTT_FACILITY_KERNEL, |
| 810 | LTT_EVENT_TRAP_ENTRY, |
| 811 | LTT_FIELD_TRAP_ID, 0, 0, |
| 812 | NULL, NULL, &h)) |
| 813 | return; |
| 814 | |
| 815 | thf = lttv_trace_hook_get_first(&h); |
| 816 | |
| 817 | t = ltt_field_type(thf->f1); |
| 818 | //nb = ltt_type_element_number(t); |
| 819 | |
| 820 | lttv_trace_hook_destroy(&h); |
| 821 | |
| 822 | /* |
| 823 | name_tables->trap_names = g_new(GQuark, nb); |
| 824 | for(i = 0 ; i < nb ; i++) { |
| 825 | name_tables->trap_names[i] = g_quark_from_string( |
| 826 | ltt_enum_string_get(t, i)); |
| 827 | } |
| 828 | */ |
| 829 | |
| 830 | name_tables->trap_names = g_new(GQuark, 256); |
| 831 | for(i = 0 ; i < 256 ; i++) { |
| 832 | g_string_printf(fe_name, "trap %d", i); |
| 833 | name_tables->trap_names[i] = g_quark_from_string(fe_name->str); |
| 834 | } |
| 835 | |
| 836 | if(lttv_trace_find_hook(tcs->parent.t, |
| 837 | LTT_FACILITY_KERNEL, LTT_EVENT_IRQ_ENTRY, |
| 838 | LTT_FIELD_IRQ_ID, 0, 0, |
| 839 | NULL, NULL, &h)) |
| 840 | return; |
| 841 | |
| 842 | thf = lttv_trace_hook_get_first(&h); |
| 843 | |
| 844 | t = ltt_field_type(thf->f1); |
| 845 | //nb = ltt_type_element_number(t); |
| 846 | |
| 847 | lttv_trace_hook_destroy(&h); |
| 848 | |
| 849 | /* |
| 850 | name_tables->irq_names = g_new(GQuark, nb); |
| 851 | for(i = 0 ; i < nb ; i++) { |
| 852 | name_tables->irq_names[i] = g_quark_from_string(ltt_enum_string_get(t, i)); |
| 853 | } |
| 854 | */ |
| 855 | |
| 856 | name_tables->irq_names = g_new(GQuark, 256); |
| 857 | for(i = 0 ; i < 256 ; i++) { |
| 858 | g_string_printf(fe_name, "irq %d", i); |
| 859 | name_tables->irq_names[i] = g_quark_from_string(fe_name->str); |
| 860 | } |
| 861 | |
| 862 | /* |
| 863 | name_tables->soft_irq_names = g_new(GQuark, nb); |
| 864 | for(i = 0 ; i < nb ; i++) { |
| 865 | name_tables->soft_irq_names[i] = g_quark_from_string(ltt_enum_string_get(t, i)); |
| 866 | } |
| 867 | */ |
| 868 | |
| 869 | name_tables->soft_irq_names = g_new(GQuark, 256); |
| 870 | for(i = 0 ; i < 256 ; i++) { |
| 871 | g_string_printf(fe_name, "softirq %d", i); |
| 872 | name_tables->soft_irq_names[i] = g_quark_from_string(fe_name->str); |
| 873 | } |
| 874 | |
| 875 | |
| 876 | g_string_free(fe_name, TRUE); |
| 877 | } |
| 878 | |
| 879 | |
| 880 | static void |
| 881 | get_name_tables(LttvTraceState *tcs) |
| 882 | { |
| 883 | LttvNameTables *name_tables; |
| 884 | |
| 885 | LttvAttributeValue v; |
| 886 | |
| 887 | lttv_attribute_find(tcs->parent.t_a, LTTV_STATE_NAME_TABLES, |
| 888 | LTTV_POINTER, &v); |
| 889 | g_assert(*(v.v_pointer) != NULL); |
| 890 | name_tables = (LttvNameTables *)*(v.v_pointer); |
| 891 | //tcs->eventtype_names = name_tables->eventtype_names; |
| 892 | tcs->syscall_names = name_tables->syscall_names; |
| 893 | tcs->trap_names = name_tables->trap_names; |
| 894 | tcs->irq_names = name_tables->irq_names; |
| 895 | tcs->soft_irq_names = name_tables->soft_irq_names; |
| 896 | } |
| 897 | |
| 898 | |
| 899 | static void |
| 900 | free_name_tables(LttvTraceState *tcs) |
| 901 | { |
| 902 | LttvNameTables *name_tables; |
| 903 | |
| 904 | LttvAttributeValue v; |
| 905 | |
| 906 | lttv_attribute_find(tcs->parent.t_a, LTTV_STATE_NAME_TABLES, |
| 907 | LTTV_POINTER, &v); |
| 908 | name_tables = (LttvNameTables *)*(v.v_pointer); |
| 909 | *(v.v_pointer) = NULL; |
| 910 | |
| 911 | // g_free(name_tables->eventtype_names); |
| 912 | g_free(name_tables->syscall_names); |
| 913 | g_free(name_tables->trap_names); |
| 914 | g_free(name_tables->irq_names); |
| 915 | g_free(name_tables->soft_irq_names); |
| 916 | g_free(name_tables); |
| 917 | } |
| 918 | |
| 919 | #ifdef HASH_TABLE_DEBUG |
| 920 | |
| 921 | static void test_process(gpointer key, gpointer value, gpointer user_data) |
| 922 | { |
| 923 | LttvProcessState *process = (LttvProcessState *)value; |
| 924 | |
| 925 | /* Test for process corruption */ |
| 926 | guint stack_len = process->execution_stack->len; |
| 927 | } |
| 928 | |
| 929 | static void hash_table_check(GHashTable *table) |
| 930 | { |
| 931 | g_hash_table_foreach(table, test_process, NULL); |
| 932 | } |
| 933 | |
| 934 | |
| 935 | #endif |
| 936 | |
| 937 | |
| 938 | static void push_state(LttvTracefileState *tfs, LttvExecutionMode t, |
| 939 | guint state_id) |
| 940 | { |
| 941 | LttvExecutionState *es; |
| 942 | |
| 943 | guint cpu = ltt_tracefile_num(tfs->parent.tf); |
| 944 | LttvTraceState *ts = (LttvTraceState*)tfs->parent.t_context; |
| 945 | |
| 946 | #ifdef HASH_TABLE_DEBUG |
| 947 | hash_table_check(ts->processes); |
| 948 | #endif |
| 949 | LttvProcessState *process = ts->running_process[cpu]; |
| 950 | |
| 951 | guint depth = process->execution_stack->len; |
| 952 | |
| 953 | process->execution_stack = |
| 954 | g_array_set_size(process->execution_stack, depth + 1); |
| 955 | /* Keep in sync */ |
| 956 | process->state = |
| 957 | &g_array_index(process->execution_stack, LttvExecutionState, depth - 1); |
| 958 | |
| 959 | es = &g_array_index(process->execution_stack, LttvExecutionState, depth); |
| 960 | es->t = t; |
| 961 | es->n = state_id; |
| 962 | es->entry = es->change = tfs->parent.timestamp; |
| 963 | es->s = process->state->s; |
| 964 | process->state = es; |
| 965 | } |
| 966 | |
| 967 | |
| 968 | static void pop_state(LttvTracefileState *tfs, LttvExecutionMode t) |
| 969 | { |
| 970 | guint cpu = ltt_tracefile_num(tfs->parent.tf); |
| 971 | LttvTraceState *ts = (LttvTraceState*)tfs->parent.t_context; |
| 972 | LttvProcessState *process = ts->running_process[cpu]; |
| 973 | |
| 974 | guint depth = process->execution_stack->len; |
| 975 | |
| 976 | if(process->state->t != t){ |
| 977 | g_info("Different execution mode type (%lu.%09lu): ignore it\n", |
| 978 | tfs->parent.timestamp.tv_sec, tfs->parent.timestamp.tv_nsec); |
| 979 | g_info("process state has %s when pop_int is %s\n", |
| 980 | g_quark_to_string(process->state->t), |
| 981 | g_quark_to_string(t)); |
| 982 | g_info("{ %u, %u, %s, %s }\n", |
| 983 | process->pid, |
| 984 | process->ppid, |
| 985 | g_quark_to_string(process->name), |
| 986 | g_quark_to_string(process->state->s)); |
| 987 | return; |
| 988 | } |
| 989 | |
| 990 | if(depth == 1){ |
| 991 | g_info("Trying to pop last state on stack (%lu.%09lu): ignore it\n", |
| 992 | tfs->parent.timestamp.tv_sec, tfs->parent.timestamp.tv_nsec); |
| 993 | return; |
| 994 | } |
| 995 | |
| 996 | process->execution_stack = |
| 997 | g_array_set_size(process->execution_stack, depth - 1); |
| 998 | process->state = &g_array_index(process->execution_stack, LttvExecutionState, |
| 999 | depth - 2); |
| 1000 | process->state->change = tfs->parent.timestamp; |
| 1001 | } |
| 1002 | |
| 1003 | |
| 1004 | LttvProcessState * |
| 1005 | lttv_state_create_process(LttvTraceState *tcs, LttvProcessState *parent, |
| 1006 | guint cpu, guint pid, GQuark name, const LttTime *timestamp) |
| 1007 | { |
| 1008 | LttvProcessState *process = g_new(LttvProcessState, 1); |
| 1009 | |
| 1010 | LttvExecutionState *es; |
| 1011 | |
| 1012 | LttvTraceContext *tc = (LttvTraceContext*)tcs; |
| 1013 | |
| 1014 | char buffer[128]; |
| 1015 | |
| 1016 | process->pid = pid; |
| 1017 | process->cpu = cpu; |
| 1018 | process->name = name; |
| 1019 | //process->last_cpu = tfs->cpu_name; |
| 1020 | //process->last_cpu_index = ltt_tracefile_num(((LttvTracefileContext*)tfs)->tf); |
| 1021 | process->kernel_thread = 0; |
| 1022 | |
| 1023 | g_info("Process %u, core %p", process->pid, process); |
| 1024 | g_hash_table_insert(tcs->processes, process, process); |
| 1025 | |
| 1026 | if(parent) { |
| 1027 | process->ppid = parent->pid; |
| 1028 | process->creation_time = *timestamp; |
| 1029 | } |
| 1030 | |
| 1031 | /* No parent. This process exists but we are missing all information about |
| 1032 | its creation. The birth time is set to zero but we remember the time of |
| 1033 | insertion */ |
| 1034 | |
| 1035 | else { |
| 1036 | process->ppid = 0; |
| 1037 | process->creation_time = ltt_time_zero; |
| 1038 | } |
| 1039 | |
| 1040 | process->insertion_time = *timestamp; |
| 1041 | sprintf(buffer,"%d-%lu.%lu",pid, process->creation_time.tv_sec, |
| 1042 | process->creation_time.tv_nsec); |
| 1043 | process->pid_time = g_quark_from_string(buffer); |
| 1044 | process->cpu = cpu; |
| 1045 | //process->last_cpu = tfs->cpu_name; |
| 1046 | //process->last_cpu_index = ltt_tracefile_num(((LttvTracefileContext*)tfs)->tf); |
| 1047 | process->execution_stack = g_array_sized_new(FALSE, FALSE, |
| 1048 | sizeof(LttvExecutionState), PREALLOCATED_EXECUTION_STACK); |
| 1049 | process->execution_stack = g_array_set_size(process->execution_stack, 2); |
| 1050 | es = process->state = &g_array_index(process->execution_stack, |
| 1051 | LttvExecutionState, 0); |
| 1052 | es->t = LTTV_STATE_USER_MODE; |
| 1053 | es->n = LTTV_STATE_SUBMODE_NONE; |
| 1054 | es->entry = *timestamp; |
| 1055 | //g_assert(timestamp->tv_sec != 0); |
| 1056 | es->change = *timestamp; |
| 1057 | es->s = LTTV_STATE_RUN; |
| 1058 | |
| 1059 | es = process->state = &g_array_index(process->execution_stack, |
| 1060 | LttvExecutionState, 1); |
| 1061 | es->t = LTTV_STATE_SYSCALL; |
| 1062 | es->n = LTTV_STATE_SUBMODE_NONE; |
| 1063 | es->entry = *timestamp; |
| 1064 | //g_assert(timestamp->tv_sec != 0); |
| 1065 | es->change = *timestamp; |
| 1066 | es->s = LTTV_STATE_WAIT_FORK; |
| 1067 | |
| 1068 | return process; |
| 1069 | } |
| 1070 | |
| 1071 | LttvProcessState *lttv_state_find_process(LttvTraceState *ts, guint cpu, |
| 1072 | guint pid) |
| 1073 | { |
| 1074 | LttvProcessState key; |
| 1075 | LttvProcessState *process; |
| 1076 | |
| 1077 | key.pid = pid; |
| 1078 | key.cpu = cpu; |
| 1079 | process = g_hash_table_lookup(ts->processes, &key); |
| 1080 | return process; |
| 1081 | } |
| 1082 | |
| 1083 | LttvProcessState * |
| 1084 | lttv_state_find_process_or_create(LttvTraceState *ts, guint cpu, guint pid, |
| 1085 | LttTime *timestamp) |
| 1086 | { |
| 1087 | LttvProcessState *process = lttv_state_find_process(ts, cpu, pid); |
| 1088 | LttvExecutionState *es; |
| 1089 | |
| 1090 | /* Put ltt_time_zero creation time for unexisting processes */ |
| 1091 | if(unlikely(process == NULL)) { |
| 1092 | process = lttv_state_create_process(ts, |
| 1093 | NULL, cpu, pid, LTTV_STATE_UNNAMED, timestamp); |
| 1094 | /* We are not sure is it's a kernel thread or normal thread, put the |
| 1095 | * bottom stack state to unknown */ |
| 1096 | es = &g_array_index(process->execution_stack, LttvExecutionState, 0); |
| 1097 | es->t = LTTV_STATE_MODE_UNKNOWN; |
| 1098 | } |
| 1099 | return process; |
| 1100 | } |
| 1101 | |
| 1102 | /* FIXME : this function should be called when we receive an event telling that |
| 1103 | * release_task has been called in the kernel. In happens generally when |
| 1104 | * the parent waits for its child terminaison, but may also happen in special |
| 1105 | * cases in the child's exit : when the parent ignores its children SIGCCHLD or |
| 1106 | * has the flag SA_NOCLDWAIT. It can also happen when the child is part |
| 1107 | * of a killed thread ground, but isn't the leader. |
| 1108 | */ |
| 1109 | static void exit_process(LttvTracefileState *tfs, LttvProcessState *process) |
| 1110 | { |
| 1111 | LttvTraceState *ts = LTTV_TRACE_STATE(tfs->parent.t_context); |
| 1112 | LttvProcessState key; |
| 1113 | |
| 1114 | key.pid = process->pid; |
| 1115 | key.cpu = process->cpu; |
| 1116 | g_hash_table_remove(ts->processes, &key); |
| 1117 | g_array_free(process->execution_stack, TRUE); |
| 1118 | g_free(process); |
| 1119 | } |
| 1120 | |
| 1121 | |
| 1122 | static void free_process_state(gpointer key, gpointer value,gpointer user_data) |
| 1123 | { |
| 1124 | g_array_free(((LttvProcessState *)value)->execution_stack, TRUE); |
| 1125 | g_free(value); |
| 1126 | } |
| 1127 | |
| 1128 | |
| 1129 | static void lttv_state_free_process_table(GHashTable *processes) |
| 1130 | { |
| 1131 | g_hash_table_foreach(processes, free_process_state, NULL); |
| 1132 | g_hash_table_destroy(processes); |
| 1133 | } |
| 1134 | |
| 1135 | |
| 1136 | static gboolean syscall_entry(void *hook_data, void *call_data) |
| 1137 | { |
| 1138 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 1139 | LttEvent *e = ltt_tracefile_get_event(s->parent.tf); |
| 1140 | LttvTraceHookByFacility *thf = (LttvTraceHookByFacility *)hook_data; |
| 1141 | LttField *f = thf->f1; |
| 1142 | |
| 1143 | LttvExecutionSubmode submode; |
| 1144 | |
| 1145 | submode = ((LttvTraceState *)(s->parent.t_context))->syscall_names[ |
| 1146 | ltt_event_get_unsigned(e, f)]; |
| 1147 | push_state(s, LTTV_STATE_SYSCALL, submode); |
| 1148 | return FALSE; |
| 1149 | } |
| 1150 | |
| 1151 | |
| 1152 | static gboolean syscall_exit(void *hook_data, void *call_data) |
| 1153 | { |
| 1154 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 1155 | |
| 1156 | pop_state(s, LTTV_STATE_SYSCALL); |
| 1157 | return FALSE; |
| 1158 | } |
| 1159 | |
| 1160 | |
| 1161 | static gboolean trap_entry(void *hook_data, void *call_data) |
| 1162 | { |
| 1163 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 1164 | LttEvent *e = ltt_tracefile_get_event(s->parent.tf); |
| 1165 | LttvTraceHookByFacility *thf = (LttvTraceHookByFacility *)hook_data; |
| 1166 | LttField *f = thf->f1; |
| 1167 | |
| 1168 | LttvExecutionSubmode submode; |
| 1169 | |
| 1170 | submode = ((LttvTraceState *)(s->parent.t_context))->trap_names[ |
| 1171 | ltt_event_get_unsigned(e, f)]; |
| 1172 | push_state(s, LTTV_STATE_TRAP, submode); |
| 1173 | return FALSE; |
| 1174 | } |
| 1175 | |
| 1176 | |
| 1177 | static gboolean trap_exit(void *hook_data, void *call_data) |
| 1178 | { |
| 1179 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 1180 | |
| 1181 | pop_state(s, LTTV_STATE_TRAP); |
| 1182 | return FALSE; |
| 1183 | } |
| 1184 | |
| 1185 | |
| 1186 | static gboolean irq_entry(void *hook_data, void *call_data) |
| 1187 | { |
| 1188 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 1189 | LttEvent *e = ltt_tracefile_get_event(s->parent.tf); |
| 1190 | guint8 fac_id = ltt_event_facility_id(e); |
| 1191 | guint8 ev_id = ltt_event_eventtype_id(e); |
| 1192 | LttvTraceHookByFacility *thf = (LttvTraceHookByFacility *)hook_data; |
| 1193 | // g_assert(lttv_trace_hook_get_first((LttvTraceHook *)hook_data)->f1 != NULL); |
| 1194 | g_assert(thf->f1 != NULL); |
| 1195 | // g_assert(thf == lttv_trace_hook_get_first((LttvTraceHook *)hook_data)); |
| 1196 | LttField *f = thf->f1; |
| 1197 | |
| 1198 | LttvExecutionSubmode submode; |
| 1199 | |
| 1200 | submode = ((LttvTraceState *)(s->parent.t_context))->irq_names[ |
| 1201 | ltt_event_get_unsigned(e, f)]; |
| 1202 | |
| 1203 | /* Do something with the info about being in user or system mode when int? */ |
| 1204 | push_state(s, LTTV_STATE_IRQ, submode); |
| 1205 | return FALSE; |
| 1206 | } |
| 1207 | |
| 1208 | |
| 1209 | static gboolean irq_exit(void *hook_data, void *call_data) |
| 1210 | { |
| 1211 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 1212 | |
| 1213 | pop_state(s, LTTV_STATE_IRQ); |
| 1214 | return FALSE; |
| 1215 | } |
| 1216 | |
| 1217 | static gboolean soft_irq_entry(void *hook_data, void *call_data) |
| 1218 | { |
| 1219 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 1220 | LttEvent *e = ltt_tracefile_get_event(s->parent.tf); |
| 1221 | guint8 fac_id = ltt_event_facility_id(e); |
| 1222 | guint8 ev_id = ltt_event_eventtype_id(e); |
| 1223 | LttvTraceHookByFacility *thf = (LttvTraceHookByFacility *)hook_data; |
| 1224 | // g_assert(lttv_trace_hook_get_first((LttvTraceHook *)hook_data)->f1 != NULL); |
| 1225 | g_assert(thf->f1 != NULL); |
| 1226 | // g_assert(thf == lttv_trace_hook_get_first((LttvTraceHook *)hook_data)); |
| 1227 | LttField *f = thf->f1; |
| 1228 | |
| 1229 | LttvExecutionSubmode submode; |
| 1230 | |
| 1231 | submode = ((LttvTraceState *)(s->parent.t_context))->soft_irq_names[ |
| 1232 | ltt_event_get_unsigned(e, f)]; |
| 1233 | |
| 1234 | /* Do something with the info about being in user or system mode when int? */ |
| 1235 | push_state(s, LTTV_STATE_SOFT_IRQ, submode); |
| 1236 | return FALSE; |
| 1237 | } |
| 1238 | |
| 1239 | |
| 1240 | static gboolean soft_irq_exit(void *hook_data, void *call_data) |
| 1241 | { |
| 1242 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 1243 | |
| 1244 | pop_state(s, LTTV_STATE_SOFT_IRQ); |
| 1245 | return FALSE; |
| 1246 | } |
| 1247 | |
| 1248 | |
| 1249 | static gboolean schedchange(void *hook_data, void *call_data) |
| 1250 | { |
| 1251 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 1252 | guint cpu = ltt_tracefile_num(s->parent.tf); |
| 1253 | LttvTraceState *ts = (LttvTraceState*)s->parent.t_context; |
| 1254 | LttvProcessState *process = ts->running_process[cpu]; |
| 1255 | LttvProcessState *old_process = ts->running_process[cpu]; |
| 1256 | |
| 1257 | LttEvent *e = ltt_tracefile_get_event(s->parent.tf); |
| 1258 | LttvTraceHookByFacility *thf = (LttvTraceHookByFacility *)hook_data; |
| 1259 | guint pid_in, pid_out; |
| 1260 | gint state_out; |
| 1261 | |
| 1262 | pid_out = ltt_event_get_unsigned(e, thf->f1); |
| 1263 | pid_in = ltt_event_get_unsigned(e, thf->f2); |
| 1264 | state_out = ltt_event_get_int(e, thf->f3); |
| 1265 | |
| 1266 | if(likely(process != NULL)) { |
| 1267 | |
| 1268 | /* We could not know but it was not the idle process executing. |
| 1269 | This should only happen at the beginning, before the first schedule |
| 1270 | event, and when the initial information (current process for each CPU) |
| 1271 | is missing. It is not obvious how we could, after the fact, compensate |
| 1272 | the wrongly attributed statistics. */ |
| 1273 | |
| 1274 | //This test only makes sense once the state is known and if there is no |
| 1275 | //missing events. We need to silently ignore schedchange coming after a |
| 1276 | //process_free, or it causes glitches. (FIXME) |
| 1277 | //if(unlikely(process->pid != pid_out)) { |
| 1278 | // g_assert(process->pid == 0); |
| 1279 | //} |
| 1280 | |
| 1281 | if(unlikely(process->state->s == LTTV_STATE_EXIT)) { |
| 1282 | process->state->s = LTTV_STATE_ZOMBIE; |
| 1283 | process->state->change = s->parent.timestamp; |
| 1284 | } else { |
| 1285 | if(unlikely(state_out == 0)) process->state->s = LTTV_STATE_WAIT_CPU; |
| 1286 | else process->state->s = LTTV_STATE_WAIT; |
| 1287 | process->state->change = s->parent.timestamp; |
| 1288 | } |
| 1289 | |
| 1290 | if(state_out == 32) |
| 1291 | exit_process(s, process); /* EXIT_DEAD */ |
| 1292 | /* see sched.h for states */ |
| 1293 | } |
| 1294 | process = ts->running_process[cpu] = |
| 1295 | lttv_state_find_process_or_create( |
| 1296 | (LttvTraceState*)s->parent.t_context, |
| 1297 | cpu, pid_in, |
| 1298 | &s->parent.timestamp); |
| 1299 | process->state->s = LTTV_STATE_RUN; |
| 1300 | process->cpu = cpu; |
| 1301 | // process->last_cpu_index = ltt_tracefile_num(((LttvTracefileContext*)s)->tf); |
| 1302 | process->state->change = s->parent.timestamp; |
| 1303 | return FALSE; |
| 1304 | } |
| 1305 | |
| 1306 | static gboolean process_fork(void *hook_data, void *call_data) |
| 1307 | { |
| 1308 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 1309 | LttEvent *e = ltt_tracefile_get_event(s->parent.tf); |
| 1310 | LttvTraceHookByFacility *thf = (LttvTraceHookByFacility *)hook_data; |
| 1311 | guint parent_pid; |
| 1312 | guint child_pid; |
| 1313 | LttvProcessState *zombie_process; |
| 1314 | guint cpu = ltt_tracefile_num(s->parent.tf); |
| 1315 | LttvTraceState *ts = (LttvTraceState*)s->parent.t_context; |
| 1316 | LttvProcessState *process = ts->running_process[cpu]; |
| 1317 | LttvProcessState *child_process; |
| 1318 | |
| 1319 | /* Parent PID */ |
| 1320 | parent_pid = ltt_event_get_unsigned(e, thf->f1); |
| 1321 | |
| 1322 | /* Child PID */ |
| 1323 | child_pid = ltt_event_get_unsigned(e, thf->f2); |
| 1324 | |
| 1325 | /* Mathieu : it seems like the process might have been scheduled in before the |
| 1326 | * fork, and, in a rare case, might be the current process. This might happen |
| 1327 | * in a SMP case where we don't have enough precision on the clocks. |
| 1328 | * |
| 1329 | * Test reenabled after precision fixes on time. (Mathieu) */ |
| 1330 | #if 0 |
| 1331 | zombie_process = lttv_state_find_process(ts, ANY_CPU, child_pid); |
| 1332 | |
| 1333 | if(unlikely(zombie_process != NULL)) { |
| 1334 | /* Reutilisation of PID. Only now we are sure that the old PID |
| 1335 | * has been released. FIXME : should know when release_task happens instead. |
| 1336 | */ |
| 1337 | guint num_cpus = ltt_trace_get_num_cpu(ts->parent.t); |
| 1338 | guint i; |
| 1339 | for(i=0; i< num_cpus; i++) { |
| 1340 | g_assert(zombie_process != ts->running_process[i]); |
| 1341 | } |
| 1342 | |
| 1343 | exit_process(s, zombie_process); |
| 1344 | } |
| 1345 | #endif //0 |
| 1346 | g_assert(process->pid != child_pid); |
| 1347 | // FIXME : Add this test in the "known state" section |
| 1348 | // g_assert(process->pid == parent_pid); |
| 1349 | child_process = lttv_state_find_process(ts, ANY_CPU, child_pid); |
| 1350 | if(child_process == NULL) { |
| 1351 | child_process = lttv_state_create_process(ts, process, cpu, |
| 1352 | child_pid, LTTV_STATE_UNNAMED, &s->parent.timestamp); |
| 1353 | } else { |
| 1354 | /* The process has already been created : due to time imprecision between |
| 1355 | * multiple CPUs : it has been scheduled in before creation. Note that we |
| 1356 | * shouldn't have this kind of imprecision. |
| 1357 | * |
| 1358 | * Simply put a correct parent. |
| 1359 | */ |
| 1360 | g_assert(0); /* This is a problematic case : the process has been created |
| 1361 | before the fork event */ |
| 1362 | child_process->ppid = process->pid; |
| 1363 | } |
| 1364 | g_assert(child_process->name == LTTV_STATE_UNNAMED); |
| 1365 | child_process->name = process->name; |
| 1366 | |
| 1367 | return FALSE; |
| 1368 | } |
| 1369 | |
| 1370 | /* We stamp a newly created process as kernel_thread */ |
| 1371 | static gboolean process_kernel_thread(void *hook_data, void *call_data) |
| 1372 | { |
| 1373 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 1374 | LttEvent *e = ltt_tracefile_get_event(s->parent.tf); |
| 1375 | LttvTraceHookByFacility *thf = (LttvTraceHookByFacility *)hook_data; |
| 1376 | guint pid; |
| 1377 | guint cpu = ltt_tracefile_num(s->parent.tf); |
| 1378 | LttvTraceState *ts = (LttvTraceState*)s->parent.t_context; |
| 1379 | LttvProcessState *process; |
| 1380 | LttvExecutionState *es; |
| 1381 | |
| 1382 | /* PID */ |
| 1383 | pid = ltt_event_get_unsigned(e, thf->f1); |
| 1384 | |
| 1385 | process = lttv_state_find_process(ts, ANY_CPU, pid); |
| 1386 | es = &g_array_index(process->execution_stack, LttvExecutionState, 0); |
| 1387 | es->t = LTTV_STATE_SYSCALL; |
| 1388 | process->kernel_thread = 1; |
| 1389 | |
| 1390 | return FALSE; |
| 1391 | } |
| 1392 | |
| 1393 | static gboolean process_exit(void *hook_data, void *call_data) |
| 1394 | { |
| 1395 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 1396 | LttEvent *e = ltt_tracefile_get_event(s->parent.tf); |
| 1397 | LttvTraceHookByFacility *thf = (LttvTraceHookByFacility *)hook_data; |
| 1398 | LttField *f; |
| 1399 | guint pid; |
| 1400 | guint cpu = ltt_tracefile_num(s->parent.tf); |
| 1401 | LttvTraceState *ts = (LttvTraceState*)s->parent.t_context; |
| 1402 | LttvProcessState *process = ts->running_process[cpu]; |
| 1403 | |
| 1404 | pid = ltt_event_get_unsigned(e, thf->f1); |
| 1405 | |
| 1406 | // FIXME : Add this test in the "known state" section |
| 1407 | // g_assert(process->pid == pid); |
| 1408 | |
| 1409 | if(likely(process != NULL)) { |
| 1410 | process->state->s = LTTV_STATE_EXIT; |
| 1411 | } |
| 1412 | return FALSE; |
| 1413 | } |
| 1414 | |
| 1415 | static gboolean process_free(void *hook_data, void *call_data) |
| 1416 | { |
| 1417 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 1418 | LttvTraceState *ts = (LttvTraceState*)s->parent.t_context; |
| 1419 | LttEvent *e = ltt_tracefile_get_event(s->parent.tf); |
| 1420 | LttvTraceHookByFacility *thf = (LttvTraceHookByFacility *)hook_data; |
| 1421 | guint release_pid; |
| 1422 | LttvProcessState *process; |
| 1423 | |
| 1424 | /* PID of the process to release */ |
| 1425 | release_pid = ltt_event_get_unsigned(e, thf->f1); |
| 1426 | |
| 1427 | g_assert(release_pid != 0); |
| 1428 | |
| 1429 | process = lttv_state_find_process(ts, ANY_CPU, release_pid); |
| 1430 | |
| 1431 | if(likely(process != NULL)) { |
| 1432 | /* release_task is happening at kernel level : we can now safely release |
| 1433 | * the data structure of the process */ |
| 1434 | //This test is fun, though, as it may happen that |
| 1435 | //at time t : CPU 0 : process_free |
| 1436 | //at time t+150ns : CPU 1 : schedule out |
| 1437 | //Clearly due to time imprecision, we disable it. (Mathieu) |
| 1438 | //If this weird case happen, we have no choice but to put the |
| 1439 | //Currently running process on the cpu to 0. |
| 1440 | //I re-enable it following time precision fixes. (Mathieu) |
| 1441 | //Well, in the case where an process is freed by a process on another CPU |
| 1442 | //and still scheduled, it happens that this is the schedchange that will |
| 1443 | //drop the last reference count. Do not free it here! |
| 1444 | guint num_cpus = ltt_trace_get_num_cpu(ts->parent.t); |
| 1445 | guint i; |
| 1446 | for(i=0; i< num_cpus; i++) { |
| 1447 | //g_assert(process != ts->running_process[i]); |
| 1448 | if(process == ts->running_process[i]) { |
| 1449 | //ts->running_process[i] = lttv_state_find_process(ts, i, 0); |
| 1450 | break; |
| 1451 | } |
| 1452 | } |
| 1453 | //if(i == num_cpus) /* process is not scheduled */ |
| 1454 | //exit_process(s, process); // do nothing : wait for the schedchange to |
| 1455 | //delete the process. |
| 1456 | } |
| 1457 | |
| 1458 | return FALSE; |
| 1459 | } |
| 1460 | |
| 1461 | |
| 1462 | static gboolean process_exec(void *hook_data, void *call_data) |
| 1463 | { |
| 1464 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 1465 | LttvTraceState *ts = (LttvTraceState*)s->parent.t_context; |
| 1466 | LttEvent *e = ltt_tracefile_get_event(s->parent.tf); |
| 1467 | LttvTraceHookByFacility *thf = (LttvTraceHookByFacility *)hook_data; |
| 1468 | //gchar *name; |
| 1469 | guint cpu = ltt_tracefile_num(s->parent.tf); |
| 1470 | LttvProcessState *process = ts->running_process[cpu]; |
| 1471 | |
| 1472 | /* PID of the process to release */ |
| 1473 | guint64 name_len = ltt_event_field_element_number(e, thf->f1); |
| 1474 | //name = ltt_event_get_string(e, thf->f1); |
| 1475 | LttField *child = ltt_event_field_element_select(e, thf->f1, 0); |
| 1476 | gchar *name_begin = |
| 1477 | (gchar*)(ltt_event_data(e)+ltt_event_field_offset(e, child)); |
| 1478 | gchar *null_term_name = g_new(gchar, name_len+1); |
| 1479 | memcpy(null_term_name, name_begin, name_len); |
| 1480 | null_term_name[name_len] = '\0'; |
| 1481 | |
| 1482 | process->name = g_quark_from_string(null_term_name); |
| 1483 | g_free(null_term_name); |
| 1484 | return FALSE; |
| 1485 | } |
| 1486 | |
| 1487 | static gboolean enum_process_state(void *hook_data, void *call_data) |
| 1488 | { |
| 1489 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 1490 | LttEvent *e = ltt_tracefile_get_event(s->parent.tf); |
| 1491 | //It's slow : optimise later by doing this before reading trace. |
| 1492 | LttEventType *et = ltt_event_eventtype(e); |
| 1493 | // |
| 1494 | LttvTraceHookByFacility *thf = (LttvTraceHookByFacility *)hook_data; |
| 1495 | guint parent_pid; |
| 1496 | guint pid; |
| 1497 | gchar * command; |
| 1498 | guint cpu = ltt_tracefile_num(s->parent.tf); |
| 1499 | LttvTraceState *ts = (LttvTraceState*)s->parent.t_context; |
| 1500 | LttvProcessState *process = ts->running_process[cpu]; |
| 1501 | LttvProcessState *parent_process; |
| 1502 | LttField *f4, *f5, *f6; |
| 1503 | GQuark mode, submode, status; |
| 1504 | |
| 1505 | /* PID */ |
| 1506 | pid = ltt_event_get_unsigned(e, thf->f1); |
| 1507 | |
| 1508 | /* Parent PID */ |
| 1509 | parent_pid = ltt_event_get_unsigned(e, thf->f2); |
| 1510 | |
| 1511 | /* Command name */ |
| 1512 | command = ltt_event_get_string(e, thf->f3); |
| 1513 | |
| 1514 | /* mode */ |
| 1515 | f4 = ltt_eventtype_field_by_name(et, LTT_FIELD_MODE); |
| 1516 | mode = ltt_enum_string_get(ltt_field_type(f4), |
| 1517 | ltt_event_get_unsigned(e, f4)); |
| 1518 | |
| 1519 | /* submode */ |
| 1520 | f5 = ltt_eventtype_field_by_name(et, LTT_FIELD_SUBMODE); |
| 1521 | submode = ltt_enum_string_get(ltt_field_type(f5), |
| 1522 | ltt_event_get_unsigned(e, f5)); |
| 1523 | |
| 1524 | /* status */ |
| 1525 | f6 = ltt_eventtype_field_by_name(et, LTT_FIELD_STATUS); |
| 1526 | status = ltt_enum_string_get(ltt_field_type(f6), |
| 1527 | ltt_event_get_unsigned(e, f6)); |
| 1528 | |
| 1529 | /* The process might exist if a process was forked while performing the sate dump. */ |
| 1530 | process = lttv_state_find_process(ts, ANY_CPU, pid); |
| 1531 | if(process == NULL) { |
| 1532 | parent_process = lttv_state_find_process(ts, ANY_CPU, parent_pid); |
| 1533 | process = lttv_state_create_process(ts, parent_process, cpu, |
| 1534 | pid, g_quark_from_string(command), |
| 1535 | &s->parent.timestamp); |
| 1536 | |
| 1537 | /* Keep the stack bottom : a running user mode */ |
| 1538 | #if 0 |
| 1539 | /* Disabled because of inconsistencies in the current statedump states. */ |
| 1540 | if(mode == LTTV_STATE_USER_MODE) { |
| 1541 | /* Only keep the bottom */ |
| 1542 | process->execution_stack = g_array_set_size(process->execution_stack, 1); |
| 1543 | } else { |
| 1544 | /* On top of it : */ |
| 1545 | LttvExecutionState *es; |
| 1546 | es = process->state = &g_array_index(process->execution_stack, |
| 1547 | LttvExecutionState, 1); |
| 1548 | es->t = mode; |
| 1549 | es->s = status; |
| 1550 | es->n = submode; |
| 1551 | } |
| 1552 | #endif //0 |
| 1553 | |
| 1554 | /* UNKNOWN STATE */ |
| 1555 | { |
| 1556 | LttvExecutionState *es; |
| 1557 | es = process->state = &g_array_index(process->execution_stack, |
| 1558 | LttvExecutionState, 1); |
| 1559 | es->t = LTTV_STATE_MODE_UNKNOWN; |
| 1560 | es->s = LTTV_STATE_UNNAMED; |
| 1561 | es->n = LTTV_STATE_SUBMODE_UNKNOWN; |
| 1562 | } |
| 1563 | } else { |
| 1564 | /* The process has already been created : |
| 1565 | * Probably was forked while dumping the process state or |
| 1566 | * was simply scheduled in prior to get the state dump event. |
| 1567 | */ |
| 1568 | process->ppid = parent_pid; |
| 1569 | process->name = g_quark_from_string(command); |
| 1570 | /* Don't mess around with the stack, it will eventually become |
| 1571 | * ok after the end of state dump. */ |
| 1572 | } |
| 1573 | |
| 1574 | return FALSE; |
| 1575 | } |
| 1576 | |
| 1577 | gint lttv_state_hook_add_event_hooks(void *hook_data, void *call_data) |
| 1578 | { |
| 1579 | LttvTracesetState *tss = (LttvTracesetState*)(call_data); |
| 1580 | |
| 1581 | lttv_state_add_event_hooks(tss); |
| 1582 | |
| 1583 | return 0; |
| 1584 | } |
| 1585 | |
| 1586 | void lttv_state_add_event_hooks(LttvTracesetState *self) |
| 1587 | { |
| 1588 | LttvTraceset *traceset = self->parent.ts; |
| 1589 | |
| 1590 | guint i, j, k, l, nb_trace, nb_tracefile; |
| 1591 | |
| 1592 | LttvTraceState *ts; |
| 1593 | |
| 1594 | LttvTracefileState *tfs; |
| 1595 | |
| 1596 | GArray *hooks; |
| 1597 | |
| 1598 | LttvTraceHookByFacility *thf; |
| 1599 | |
| 1600 | LttvTraceHook *hook; |
| 1601 | |
| 1602 | LttvAttributeValue val; |
| 1603 | |
| 1604 | gint ret; |
| 1605 | |
| 1606 | nb_trace = lttv_traceset_number(traceset); |
| 1607 | for(i = 0 ; i < nb_trace ; i++) { |
| 1608 | ts = (LttvTraceState *)self->parent.traces[i]; |
| 1609 | |
| 1610 | /* Find the eventtype id for the following events and register the |
| 1611 | associated by id hooks. */ |
| 1612 | |
| 1613 | hooks = g_array_sized_new(FALSE, FALSE, sizeof(LttvTraceHook), 15); |
| 1614 | hooks = g_array_set_size(hooks, 15); |
| 1615 | |
| 1616 | ret = lttv_trace_find_hook(ts->parent.t, |
| 1617 | LTT_FACILITY_KERNEL_ARCH, LTT_EVENT_SYSCALL_ENTRY, |
| 1618 | LTT_FIELD_SYSCALL_ID, 0, 0, |
| 1619 | syscall_entry, NULL, &g_array_index(hooks, LttvTraceHook, 0)); |
| 1620 | g_assert(!ret); |
| 1621 | |
| 1622 | ret = lttv_trace_find_hook(ts->parent.t, |
| 1623 | LTT_FACILITY_KERNEL_ARCH, LTT_EVENT_SYSCALL_EXIT, |
| 1624 | 0, 0, 0, |
| 1625 | syscall_exit, NULL, &g_array_index(hooks, LttvTraceHook, 1)); |
| 1626 | g_assert(!ret); |
| 1627 | |
| 1628 | ret = lttv_trace_find_hook(ts->parent.t, |
| 1629 | LTT_FACILITY_KERNEL, LTT_EVENT_TRAP_ENTRY, |
| 1630 | LTT_FIELD_TRAP_ID, 0, 0, |
| 1631 | trap_entry, NULL, &g_array_index(hooks, LttvTraceHook, 2)); |
| 1632 | g_assert(!ret); |
| 1633 | |
| 1634 | ret = lttv_trace_find_hook(ts->parent.t, |
| 1635 | LTT_FACILITY_KERNEL, LTT_EVENT_TRAP_EXIT, |
| 1636 | 0, 0, 0, |
| 1637 | trap_exit, NULL, &g_array_index(hooks, LttvTraceHook, 3)); |
| 1638 | g_assert(!ret); |
| 1639 | |
| 1640 | ret = lttv_trace_find_hook(ts->parent.t, |
| 1641 | LTT_FACILITY_KERNEL, LTT_EVENT_IRQ_ENTRY, |
| 1642 | LTT_FIELD_IRQ_ID, 0, 0, |
| 1643 | irq_entry, NULL, &g_array_index(hooks, LttvTraceHook, 4)); |
| 1644 | g_assert(!ret); |
| 1645 | |
| 1646 | ret = lttv_trace_find_hook(ts->parent.t, |
| 1647 | LTT_FACILITY_KERNEL, LTT_EVENT_IRQ_EXIT, |
| 1648 | 0, 0, 0, |
| 1649 | irq_exit, NULL, &g_array_index(hooks, LttvTraceHook, 5)); |
| 1650 | g_assert(!ret); |
| 1651 | |
| 1652 | ret = lttv_trace_find_hook(ts->parent.t, |
| 1653 | LTT_FACILITY_KERNEL, LTT_EVENT_SOFT_IRQ_ENTRY, |
| 1654 | LTT_FIELD_SOFT_IRQ_ID, 0, 0, |
| 1655 | soft_irq_entry, NULL, &g_array_index(hooks, LttvTraceHook, 6)); |
| 1656 | g_assert(!ret); |
| 1657 | |
| 1658 | ret = lttv_trace_find_hook(ts->parent.t, |
| 1659 | LTT_FACILITY_KERNEL, LTT_EVENT_SOFT_IRQ_EXIT, |
| 1660 | 0, 0, 0, |
| 1661 | soft_irq_exit, NULL, &g_array_index(hooks, LttvTraceHook, 7)); |
| 1662 | g_assert(!ret); |
| 1663 | |
| 1664 | ret = lttv_trace_find_hook(ts->parent.t, |
| 1665 | LTT_FACILITY_PROCESS, LTT_EVENT_SCHEDCHANGE, |
| 1666 | LTT_FIELD_OUT, LTT_FIELD_IN, LTT_FIELD_OUT_STATE, |
| 1667 | schedchange, NULL, &g_array_index(hooks, LttvTraceHook, 8)); |
| 1668 | g_assert(!ret); |
| 1669 | |
| 1670 | ret = lttv_trace_find_hook(ts->parent.t, |
| 1671 | LTT_FACILITY_PROCESS, LTT_EVENT_FORK, |
| 1672 | LTT_FIELD_PARENT_PID, LTT_FIELD_CHILD_PID, 0, |
| 1673 | process_fork, NULL, &g_array_index(hooks, LttvTraceHook, 9)); |
| 1674 | g_assert(!ret); |
| 1675 | |
| 1676 | ret = lttv_trace_find_hook(ts->parent.t, |
| 1677 | LTT_FACILITY_PROCESS, LTT_EVENT_KERNEL_THREAD, |
| 1678 | LTT_FIELD_PID, 0, 0, |
| 1679 | process_kernel_thread, NULL, &g_array_index(hooks, LttvTraceHook, 10)); |
| 1680 | g_assert(!ret); |
| 1681 | |
| 1682 | ret = lttv_trace_find_hook(ts->parent.t, |
| 1683 | LTT_FACILITY_PROCESS, LTT_EVENT_EXIT, |
| 1684 | LTT_FIELD_PID, 0, 0, |
| 1685 | process_exit, NULL, &g_array_index(hooks, LttvTraceHook, 11)); |
| 1686 | g_assert(!ret); |
| 1687 | |
| 1688 | ret = lttv_trace_find_hook(ts->parent.t, |
| 1689 | LTT_FACILITY_PROCESS, LTT_EVENT_FREE, |
| 1690 | LTT_FIELD_PID, 0, 0, |
| 1691 | process_free, NULL, &g_array_index(hooks, LttvTraceHook, 12)); |
| 1692 | g_assert(!ret); |
| 1693 | |
| 1694 | ret = lttv_trace_find_hook(ts->parent.t, |
| 1695 | LTT_FACILITY_FS, LTT_EVENT_EXEC, |
| 1696 | LTT_FIELD_FILENAME, 0, 0, |
| 1697 | process_exec, NULL, &g_array_index(hooks, LttvTraceHook, 13)); |
| 1698 | g_assert(!ret); |
| 1699 | |
| 1700 | /* statedump-related hooks */ |
| 1701 | ret = lttv_trace_find_hook(ts->parent.t, |
| 1702 | LTT_FACILITY_STATEDUMP, LTT_EVENT_ENUM_PROCESS_STATE, |
| 1703 | LTT_FIELD_PID, LTT_FIELD_PARENT_PID, LTT_FIELD_NAME, |
| 1704 | enum_process_state, NULL, &g_array_index(hooks, LttvTraceHook, 14)); |
| 1705 | g_assert(!ret); |
| 1706 | |
| 1707 | |
| 1708 | /* Add these hooks to each event_by_id hooks list */ |
| 1709 | |
| 1710 | nb_tracefile = ts->parent.tracefiles->len; |
| 1711 | |
| 1712 | for(j = 0 ; j < nb_tracefile ; j++) { |
| 1713 | tfs = |
| 1714 | LTTV_TRACEFILE_STATE(g_array_index(ts->parent.tracefiles, |
| 1715 | LttvTracefileContext*, j)); |
| 1716 | |
| 1717 | for(k = 0 ; k < hooks->len ; k++) { |
| 1718 | hook = &g_array_index(hooks, LttvTraceHook, k); |
| 1719 | for(l=0;l<hook->fac_list->len;l++) { |
| 1720 | thf = g_array_index(hook->fac_list, LttvTraceHookByFacility*, l); |
| 1721 | lttv_hooks_add( |
| 1722 | lttv_hooks_by_id_find(tfs->parent.event_by_id, thf->id), |
| 1723 | thf->h, |
| 1724 | thf, |
| 1725 | LTTV_PRIO_STATE); |
| 1726 | } |
| 1727 | } |
| 1728 | } |
| 1729 | lttv_attribute_find(ts->parent.a, LTTV_STATE_HOOKS, LTTV_POINTER, &val); |
| 1730 | *(val.v_pointer) = hooks; |
| 1731 | } |
| 1732 | } |
| 1733 | |
| 1734 | gint lttv_state_hook_remove_event_hooks(void *hook_data, void *call_data) |
| 1735 | { |
| 1736 | LttvTracesetState *tss = (LttvTracesetState*)(call_data); |
| 1737 | |
| 1738 | lttv_state_remove_event_hooks(tss); |
| 1739 | |
| 1740 | return 0; |
| 1741 | } |
| 1742 | |
| 1743 | void lttv_state_remove_event_hooks(LttvTracesetState *self) |
| 1744 | { |
| 1745 | LttvTraceset *traceset = self->parent.ts; |
| 1746 | |
| 1747 | guint i, j, k, l, nb_trace, nb_tracefile; |
| 1748 | |
| 1749 | LttvTraceState *ts; |
| 1750 | |
| 1751 | LttvTracefileState *tfs; |
| 1752 | |
| 1753 | GArray *hooks; |
| 1754 | |
| 1755 | LttvTraceHook *hook; |
| 1756 | |
| 1757 | LttvTraceHookByFacility *thf; |
| 1758 | |
| 1759 | LttvAttributeValue val; |
| 1760 | |
| 1761 | nb_trace = lttv_traceset_number(traceset); |
| 1762 | for(i = 0 ; i < nb_trace ; i++) { |
| 1763 | ts = LTTV_TRACE_STATE(self->parent.traces[i]); |
| 1764 | lttv_attribute_find(ts->parent.a, LTTV_STATE_HOOKS, LTTV_POINTER, &val); |
| 1765 | hooks = *(val.v_pointer); |
| 1766 | |
| 1767 | /* Remove these hooks from each event_by_id hooks list */ |
| 1768 | |
| 1769 | nb_tracefile = ts->parent.tracefiles->len; |
| 1770 | |
| 1771 | for(j = 0 ; j < nb_tracefile ; j++) { |
| 1772 | tfs = |
| 1773 | LTTV_TRACEFILE_STATE(g_array_index(ts->parent.tracefiles, |
| 1774 | LttvTracefileContext*, j)); |
| 1775 | |
| 1776 | for(k = 0 ; k < hooks->len ; k++) { |
| 1777 | hook = &g_array_index(hooks, LttvTraceHook, k); |
| 1778 | for(l=0;l<hook->fac_list->len;l++) { |
| 1779 | thf = g_array_index(hook->fac_list, LttvTraceHookByFacility*, l); |
| 1780 | |
| 1781 | lttv_hooks_remove_data( |
| 1782 | lttv_hooks_by_id_find(tfs->parent.event_by_id, thf->id), |
| 1783 | thf->h, |
| 1784 | thf); |
| 1785 | } |
| 1786 | } |
| 1787 | } |
| 1788 | for(k = 0 ; k < hooks->len ; k++) |
| 1789 | lttv_trace_hook_destroy(&g_array_index(hooks, LttvTraceHook, k)); |
| 1790 | g_array_free(hooks, TRUE); |
| 1791 | } |
| 1792 | } |
| 1793 | |
| 1794 | static gboolean state_save_event_hook(void *hook_data, void *call_data) |
| 1795 | { |
| 1796 | guint *event_count = (guint*)hook_data; |
| 1797 | |
| 1798 | /* Only save at LTTV_STATE_SAVE_INTERVAL */ |
| 1799 | if(likely((*event_count)++ < LTTV_STATE_SAVE_INTERVAL)) |
| 1800 | return FALSE; |
| 1801 | else |
| 1802 | *event_count = 0; |
| 1803 | |
| 1804 | LttvTracefileState *self = (LttvTracefileState *)call_data; |
| 1805 | |
| 1806 | LttvTracefileState *tfcs; |
| 1807 | |
| 1808 | LttvTraceState *tcs = (LttvTraceState *)(self->parent.t_context); |
| 1809 | |
| 1810 | LttEventPosition *ep; |
| 1811 | |
| 1812 | guint i; |
| 1813 | |
| 1814 | LttTracefile *tf; |
| 1815 | |
| 1816 | LttvAttribute *saved_states_tree, *saved_state_tree; |
| 1817 | |
| 1818 | LttvAttributeValue value; |
| 1819 | |
| 1820 | saved_states_tree = lttv_attribute_find_subdir(tcs->parent.t_a, |
| 1821 | LTTV_STATE_SAVED_STATES); |
| 1822 | saved_state_tree = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL); |
| 1823 | value = lttv_attribute_add(saved_states_tree, |
| 1824 | lttv_attribute_get_number(saved_states_tree), LTTV_GOBJECT); |
| 1825 | *(value.v_gobject) = (GObject *)saved_state_tree; |
| 1826 | value = lttv_attribute_add(saved_state_tree, LTTV_STATE_TIME, LTTV_TIME); |
| 1827 | *(value.v_time) = self->parent.timestamp; |
| 1828 | lttv_state_save(tcs, saved_state_tree); |
| 1829 | g_debug("Saving state at time %lu.%lu", self->parent.timestamp.tv_sec, |
| 1830 | self->parent.timestamp.tv_nsec); |
| 1831 | |
| 1832 | *(tcs->max_time_state_recomputed_in_seek) = self->parent.timestamp; |
| 1833 | |
| 1834 | return FALSE; |
| 1835 | } |
| 1836 | |
| 1837 | static gboolean state_save_after_trace_hook(void *hook_data, void *call_data) |
| 1838 | { |
| 1839 | LttvTraceState *tcs = (LttvTraceState *)(call_data); |
| 1840 | |
| 1841 | *(tcs->max_time_state_recomputed_in_seek) = tcs->parent.time_span.end_time; |
| 1842 | |
| 1843 | return FALSE; |
| 1844 | } |
| 1845 | |
| 1846 | #if 0 |
| 1847 | static gboolean block_start(void *hook_data, void *call_data) |
| 1848 | { |
| 1849 | LttvTracefileState *self = (LttvTracefileState *)call_data; |
| 1850 | |
| 1851 | LttvTracefileState *tfcs; |
| 1852 | |
| 1853 | LttvTraceState *tcs = (LttvTraceState *)(self->parent.t_context); |
| 1854 | |
| 1855 | LttEventPosition *ep; |
| 1856 | |
| 1857 | guint i, nb_block, nb_event, nb_tracefile; |
| 1858 | |
| 1859 | LttTracefile *tf; |
| 1860 | |
| 1861 | LttvAttribute *saved_states_tree, *saved_state_tree; |
| 1862 | |
| 1863 | LttvAttributeValue value; |
| 1864 | |
| 1865 | ep = ltt_event_position_new(); |
| 1866 | |
| 1867 | nb_tracefile = tcs->parent.tracefiles->len; |
| 1868 | |
| 1869 | /* Count the number of events added since the last block end in any |
| 1870 | tracefile. */ |
| 1871 | |
| 1872 | for(i = 0 ; i < nb_tracefile ; i++) { |
| 1873 | tfcs = |
| 1874 | LTTV_TRACEFILE_STATE(&g_array_index(tcs->parent.tracefiles, |
| 1875 | LttvTracefileContext, i)); |
| 1876 | ltt_event_position(tfcs->parent.e, ep); |
| 1877 | ltt_event_position_get(ep, &nb_block, &nb_event, &tf); |
| 1878 | tcs->nb_event += nb_event - tfcs->saved_position; |
| 1879 | tfcs->saved_position = nb_event; |
| 1880 | } |
| 1881 | g_free(ep); |
| 1882 | |
| 1883 | if(tcs->nb_event >= tcs->save_interval) { |
| 1884 | saved_states_tree = lttv_attribute_find_subdir(tcs->parent.t_a, |
| 1885 | LTTV_STATE_SAVED_STATES); |
| 1886 | saved_state_tree = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL); |
| 1887 | value = lttv_attribute_add(saved_states_tree, |
| 1888 | lttv_attribute_get_number(saved_states_tree), LTTV_GOBJECT); |
| 1889 | *(value.v_gobject) = (GObject *)saved_state_tree; |
| 1890 | value = lttv_attribute_add(saved_state_tree, LTTV_STATE_TIME, LTTV_TIME); |
| 1891 | *(value.v_time) = self->parent.timestamp; |
| 1892 | lttv_state_save(tcs, saved_state_tree); |
| 1893 | tcs->nb_event = 0; |
| 1894 | g_debug("Saving state at time %lu.%lu", self->parent.timestamp.tv_sec, |
| 1895 | self->parent.timestamp.tv_nsec); |
| 1896 | } |
| 1897 | *(tcs->max_time_state_recomputed_in_seek) = self->parent.timestamp; |
| 1898 | return FALSE; |
| 1899 | } |
| 1900 | #endif //0 |
| 1901 | |
| 1902 | #if 0 |
| 1903 | static gboolean block_end(void *hook_data, void *call_data) |
| 1904 | { |
| 1905 | LttvTracefileState *self = (LttvTracefileState *)call_data; |
| 1906 | |
| 1907 | LttvTraceState *tcs = (LttvTraceState *)(self->parent.t_context); |
| 1908 | |
| 1909 | LttTracefile *tf; |
| 1910 | |
| 1911 | LttEventPosition *ep; |
| 1912 | |
| 1913 | guint nb_block, nb_event; |
| 1914 | |
| 1915 | ep = ltt_event_position_new(); |
| 1916 | ltt_event_position(self->parent.e, ep); |
| 1917 | ltt_event_position_get(ep, &nb_block, &nb_event, &tf); |
| 1918 | tcs->nb_event += nb_event - self->saved_position + 1; |
| 1919 | self->saved_position = 0; |
| 1920 | *(tcs->max_time_state_recomputed_in_seek) = self->parent.timestamp; |
| 1921 | g_free(ep); |
| 1922 | |
| 1923 | return FALSE; |
| 1924 | } |
| 1925 | #endif //0 |
| 1926 | #if 0 |
| 1927 | void lttv_state_save_add_event_hooks(LttvTracesetState *self) |
| 1928 | { |
| 1929 | LttvTraceset *traceset = self->parent.ts; |
| 1930 | |
| 1931 | guint i, j, nb_trace, nb_tracefile; |
| 1932 | |
| 1933 | LttvTraceState *ts; |
| 1934 | |
| 1935 | LttvTracefileState *tfs; |
| 1936 | |
| 1937 | LttvTraceHook hook_start, hook_end; |
| 1938 | |
| 1939 | nb_trace = lttv_traceset_number(traceset); |
| 1940 | for(i = 0 ; i < nb_trace ; i++) { |
| 1941 | ts = (LttvTraceState *)self->parent.traces[i]; |
| 1942 | |
| 1943 | lttv_trace_find_hook(ts->parent.t, "core","block_start",NULL, |
| 1944 | NULL, NULL, block_start, &hook_start); |
| 1945 | lttv_trace_find_hook(ts->parent.t, "core","block_end",NULL, |
| 1946 | NULL, NULL, block_end, &hook_end); |
| 1947 | |
| 1948 | nb_tracefile = ts->parent.tracefiles->len; |
| 1949 | |
| 1950 | for(j = 0 ; j < nb_tracefile ; j++) { |
| 1951 | tfs = |
| 1952 | LTTV_TRACEFILE_STATE(&g_array_index(ts->parent.tracefiles, |
| 1953 | LttvTracefileContext, j)); |
| 1954 | lttv_hooks_add(lttv_hooks_by_id_find(tfs->parent.event_by_id, |
| 1955 | hook_start.id), hook_start.h, NULL, LTTV_PRIO_STATE); |
| 1956 | lttv_hooks_add(lttv_hooks_by_id_find(tfs->parent.event_by_id, |
| 1957 | hook_end.id), hook_end.h, NULL, LTTV_PRIO_STATE); |
| 1958 | } |
| 1959 | } |
| 1960 | } |
| 1961 | #endif //0 |
| 1962 | |
| 1963 | void lttv_state_save_add_event_hooks(LttvTracesetState *self) |
| 1964 | { |
| 1965 | LttvTraceset *traceset = self->parent.ts; |
| 1966 | |
| 1967 | guint i, j, nb_trace, nb_tracefile; |
| 1968 | |
| 1969 | LttvTraceState *ts; |
| 1970 | |
| 1971 | LttvTracefileState *tfs; |
| 1972 | |
| 1973 | |
| 1974 | nb_trace = lttv_traceset_number(traceset); |
| 1975 | for(i = 0 ; i < nb_trace ; i++) { |
| 1976 | |
| 1977 | ts = (LttvTraceState *)self->parent.traces[i]; |
| 1978 | nb_tracefile = ts->parent.tracefiles->len; |
| 1979 | |
| 1980 | guint *event_count = g_new(guint, 1); |
| 1981 | *event_count = 0; |
| 1982 | |
| 1983 | for(j = 0 ; j < nb_tracefile ; j++) { |
| 1984 | tfs = |
| 1985 | LTTV_TRACEFILE_STATE(g_array_index(ts->parent.tracefiles, |
| 1986 | LttvTracefileContext*, j)); |
| 1987 | lttv_hooks_add(tfs->parent.event, |
| 1988 | state_save_event_hook, |
| 1989 | event_count, |
| 1990 | LTTV_PRIO_STATE); |
| 1991 | |
| 1992 | } |
| 1993 | } |
| 1994 | |
| 1995 | lttv_process_traceset_begin(&self->parent, |
| 1996 | NULL, NULL, NULL, NULL, NULL); |
| 1997 | |
| 1998 | } |
| 1999 | |
| 2000 | gint lttv_state_save_hook_add_event_hooks(void *hook_data, void *call_data) |
| 2001 | { |
| 2002 | LttvTracesetState *tss = (LttvTracesetState*)(call_data); |
| 2003 | |
| 2004 | lttv_state_save_add_event_hooks(tss); |
| 2005 | |
| 2006 | return 0; |
| 2007 | } |
| 2008 | |
| 2009 | |
| 2010 | #if 0 |
| 2011 | void lttv_state_save_remove_event_hooks(LttvTracesetState *self) |
| 2012 | { |
| 2013 | LttvTraceset *traceset = self->parent.ts; |
| 2014 | |
| 2015 | guint i, j, nb_trace, nb_tracefile; |
| 2016 | |
| 2017 | LttvTraceState *ts; |
| 2018 | |
| 2019 | LttvTracefileState *tfs; |
| 2020 | |
| 2021 | LttvTraceHook hook_start, hook_end; |
| 2022 | |
| 2023 | nb_trace = lttv_traceset_number(traceset); |
| 2024 | for(i = 0 ; i < nb_trace ; i++) { |
| 2025 | ts = LTTV_TRACE_STATE(self->parent.traces[i]); |
| 2026 | |
| 2027 | lttv_trace_find_hook(ts->parent.t, "core","block_start",NULL, |
| 2028 | NULL, NULL, block_start, &hook_start); |
| 2029 | |
| 2030 | lttv_trace_find_hook(ts->parent.t, "core","block_end",NULL, |
| 2031 | NULL, NULL, block_end, &hook_end); |
| 2032 | |
| 2033 | nb_tracefile = ts->parent.tracefiles->len; |
| 2034 | |
| 2035 | for(j = 0 ; j < nb_tracefile ; j++) { |
| 2036 | tfs = |
| 2037 | LTTV_TRACEFILE_STATE(&g_array_index(ts->parent.tracefiles, |
| 2038 | LttvTracefileContext, j)); |
| 2039 | lttv_hooks_remove_data(lttv_hooks_by_id_find( |
| 2040 | tfs->parent.event_by_id, hook_start.id), hook_start.h, NULL); |
| 2041 | lttv_hooks_remove_data(lttv_hooks_by_id_find( |
| 2042 | tfs->parent.event_by_id, hook_end.id), hook_end.h, NULL); |
| 2043 | } |
| 2044 | } |
| 2045 | } |
| 2046 | #endif //0 |
| 2047 | |
| 2048 | void lttv_state_save_remove_event_hooks(LttvTracesetState *self) |
| 2049 | { |
| 2050 | LttvTraceset *traceset = self->parent.ts; |
| 2051 | |
| 2052 | guint i, j, nb_trace, nb_tracefile; |
| 2053 | |
| 2054 | LttvTraceState *ts; |
| 2055 | |
| 2056 | LttvTracefileState *tfs; |
| 2057 | |
| 2058 | LttvHooks *after_trace = lttv_hooks_new(); |
| 2059 | |
| 2060 | lttv_hooks_add(after_trace, |
| 2061 | state_save_after_trace_hook, |
| 2062 | NULL, |
| 2063 | LTTV_PRIO_STATE); |
| 2064 | |
| 2065 | |
| 2066 | lttv_process_traceset_end(&self->parent, |
| 2067 | NULL, after_trace, NULL, NULL, NULL); |
| 2068 | |
| 2069 | lttv_hooks_destroy(after_trace); |
| 2070 | |
| 2071 | nb_trace = lttv_traceset_number(traceset); |
| 2072 | for(i = 0 ; i < nb_trace ; i++) { |
| 2073 | |
| 2074 | ts = (LttvTraceState *)self->parent.traces[i]; |
| 2075 | nb_tracefile = ts->parent.tracefiles->len; |
| 2076 | |
| 2077 | guint *event_count = NULL; |
| 2078 | |
| 2079 | for(j = 0 ; j < nb_tracefile ; j++) { |
| 2080 | tfs = |
| 2081 | LTTV_TRACEFILE_STATE(g_array_index(ts->parent.tracefiles, |
| 2082 | LttvTracefileContext*, j)); |
| 2083 | event_count = lttv_hooks_remove(tfs->parent.event, |
| 2084 | state_save_event_hook); |
| 2085 | } |
| 2086 | if(event_count) g_free(event_count); |
| 2087 | } |
| 2088 | } |
| 2089 | |
| 2090 | gint lttv_state_save_hook_remove_event_hooks(void *hook_data, void *call_data) |
| 2091 | { |
| 2092 | LttvTracesetState *tss = (LttvTracesetState*)(call_data); |
| 2093 | |
| 2094 | lttv_state_save_remove_event_hooks(tss); |
| 2095 | |
| 2096 | return 0; |
| 2097 | } |
| 2098 | |
| 2099 | void lttv_state_traceset_seek_time_closest(LttvTracesetState *self, LttTime t) |
| 2100 | { |
| 2101 | LttvTraceset *traceset = self->parent.ts; |
| 2102 | |
| 2103 | guint i, nb_trace; |
| 2104 | |
| 2105 | int min_pos, mid_pos, max_pos; |
| 2106 | |
| 2107 | guint call_rest = 0; |
| 2108 | |
| 2109 | LttvTraceState *tcs; |
| 2110 | |
| 2111 | LttvAttributeValue value; |
| 2112 | |
| 2113 | LttvAttributeType type; |
| 2114 | |
| 2115 | LttvAttributeName name; |
| 2116 | |
| 2117 | LttvAttribute *saved_states_tree, *saved_state_tree, *closest_tree; |
| 2118 | |
| 2119 | //g_tree_destroy(self->parent.pqueue); |
| 2120 | //self->parent.pqueue = g_tree_new(compare_tracefile); |
| 2121 | |
| 2122 | g_info("Entering seek_time_closest for time %lu.%lu", t.tv_sec, t.tv_nsec); |
| 2123 | |
| 2124 | nb_trace = lttv_traceset_number(traceset); |
| 2125 | for(i = 0 ; i < nb_trace ; i++) { |
| 2126 | tcs = (LttvTraceState *)self->parent.traces[i]; |
| 2127 | |
| 2128 | if(ltt_time_compare(t, *(tcs->max_time_state_recomputed_in_seek)) < 0) { |
| 2129 | saved_states_tree = lttv_attribute_find_subdir(tcs->parent.t_a, |
| 2130 | LTTV_STATE_SAVED_STATES); |
| 2131 | min_pos = -1; |
| 2132 | |
| 2133 | if(saved_states_tree) { |
| 2134 | max_pos = lttv_attribute_get_number(saved_states_tree) - 1; |
| 2135 | mid_pos = max_pos / 2; |
| 2136 | while(min_pos < max_pos) { |
| 2137 | type = lttv_attribute_get(saved_states_tree, mid_pos, &name, &value); |
| 2138 | g_assert(type == LTTV_GOBJECT); |
| 2139 | saved_state_tree = *((LttvAttribute **)(value.v_gobject)); |
| 2140 | type = lttv_attribute_get_by_name(saved_state_tree, LTTV_STATE_TIME, |
| 2141 | &value); |
| 2142 | g_assert(type == LTTV_TIME); |
| 2143 | if(ltt_time_compare(*(value.v_time), t) < 0) { |
| 2144 | min_pos = mid_pos; |
| 2145 | closest_tree = saved_state_tree; |
| 2146 | } |
| 2147 | else max_pos = mid_pos - 1; |
| 2148 | |
| 2149 | mid_pos = (min_pos + max_pos + 1) / 2; |
| 2150 | } |
| 2151 | } |
| 2152 | |
| 2153 | /* restore the closest earlier saved state */ |
| 2154 | if(min_pos != -1) { |
| 2155 | lttv_state_restore(tcs, closest_tree); |
| 2156 | call_rest = 1; |
| 2157 | } |
| 2158 | |
| 2159 | /* There is no saved state, yet we want to have it. Restart at T0 */ |
| 2160 | else { |
| 2161 | restore_init_state(tcs); |
| 2162 | lttv_process_trace_seek_time(&(tcs->parent), ltt_time_zero); |
| 2163 | } |
| 2164 | } |
| 2165 | /* We want to seek quickly without restoring/updating the state */ |
| 2166 | else { |
| 2167 | restore_init_state(tcs); |
| 2168 | lttv_process_trace_seek_time(&(tcs->parent), t); |
| 2169 | } |
| 2170 | } |
| 2171 | if(!call_rest) g_info("NOT Calling restore"); |
| 2172 | } |
| 2173 | |
| 2174 | |
| 2175 | static void |
| 2176 | traceset_state_instance_init (GTypeInstance *instance, gpointer g_class) |
| 2177 | { |
| 2178 | } |
| 2179 | |
| 2180 | |
| 2181 | static void |
| 2182 | traceset_state_finalize (LttvTracesetState *self) |
| 2183 | { |
| 2184 | G_OBJECT_CLASS(g_type_class_peek(LTTV_TRACESET_CONTEXT_TYPE))-> |
| 2185 | finalize(G_OBJECT(self)); |
| 2186 | } |
| 2187 | |
| 2188 | |
| 2189 | static void |
| 2190 | traceset_state_class_init (LttvTracesetContextClass *klass) |
| 2191 | { |
| 2192 | GObjectClass *gobject_class = G_OBJECT_CLASS(klass); |
| 2193 | |
| 2194 | gobject_class->finalize = (void (*)(GObject *self)) traceset_state_finalize; |
| 2195 | klass->init = (void (*)(LttvTracesetContext *self, LttvTraceset *ts))init; |
| 2196 | klass->fini = (void (*)(LttvTracesetContext *self))fini; |
| 2197 | klass->new_traceset_context = new_traceset_context; |
| 2198 | klass->new_trace_context = new_trace_context; |
| 2199 | klass->new_tracefile_context = new_tracefile_context; |
| 2200 | } |
| 2201 | |
| 2202 | |
| 2203 | GType |
| 2204 | lttv_traceset_state_get_type(void) |
| 2205 | { |
| 2206 | static GType type = 0; |
| 2207 | if (type == 0) { |
| 2208 | static const GTypeInfo info = { |
| 2209 | sizeof (LttvTracesetStateClass), |
| 2210 | NULL, /* base_init */ |
| 2211 | NULL, /* base_finalize */ |
| 2212 | (GClassInitFunc) traceset_state_class_init, /* class_init */ |
| 2213 | NULL, /* class_finalize */ |
| 2214 | NULL, /* class_data */ |
| 2215 | sizeof (LttvTracesetState), |
| 2216 | 0, /* n_preallocs */ |
| 2217 | (GInstanceInitFunc) traceset_state_instance_init, /* instance_init */ |
| 2218 | NULL /* value handling */ |
| 2219 | }; |
| 2220 | |
| 2221 | type = g_type_register_static (LTTV_TRACESET_CONTEXT_TYPE, "LttvTracesetStateType", |
| 2222 | &info, 0); |
| 2223 | } |
| 2224 | return type; |
| 2225 | } |
| 2226 | |
| 2227 | |
| 2228 | static void |
| 2229 | trace_state_instance_init (GTypeInstance *instance, gpointer g_class) |
| 2230 | { |
| 2231 | } |
| 2232 | |
| 2233 | |
| 2234 | static void |
| 2235 | trace_state_finalize (LttvTraceState *self) |
| 2236 | { |
| 2237 | G_OBJECT_CLASS(g_type_class_peek(LTTV_TRACE_CONTEXT_TYPE))-> |
| 2238 | finalize(G_OBJECT(self)); |
| 2239 | } |
| 2240 | |
| 2241 | |
| 2242 | static void |
| 2243 | trace_state_class_init (LttvTraceStateClass *klass) |
| 2244 | { |
| 2245 | GObjectClass *gobject_class = G_OBJECT_CLASS(klass); |
| 2246 | |
| 2247 | gobject_class->finalize = (void (*)(GObject *self)) trace_state_finalize; |
| 2248 | klass->state_save = state_save; |
| 2249 | klass->state_restore = state_restore; |
| 2250 | klass->state_saved_free = state_saved_free; |
| 2251 | } |
| 2252 | |
| 2253 | |
| 2254 | GType |
| 2255 | lttv_trace_state_get_type(void) |
| 2256 | { |
| 2257 | static GType type = 0; |
| 2258 | if (type == 0) { |
| 2259 | static const GTypeInfo info = { |
| 2260 | sizeof (LttvTraceStateClass), |
| 2261 | NULL, /* base_init */ |
| 2262 | NULL, /* base_finalize */ |
| 2263 | (GClassInitFunc) trace_state_class_init, /* class_init */ |
| 2264 | NULL, /* class_finalize */ |
| 2265 | NULL, /* class_data */ |
| 2266 | sizeof (LttvTraceState), |
| 2267 | 0, /* n_preallocs */ |
| 2268 | (GInstanceInitFunc) trace_state_instance_init, /* instance_init */ |
| 2269 | NULL /* value handling */ |
| 2270 | }; |
| 2271 | |
| 2272 | type = g_type_register_static (LTTV_TRACE_CONTEXT_TYPE, |
| 2273 | "LttvTraceStateType", &info, 0); |
| 2274 | } |
| 2275 | return type; |
| 2276 | } |
| 2277 | |
| 2278 | |
| 2279 | static void |
| 2280 | tracefile_state_instance_init (GTypeInstance *instance, gpointer g_class) |
| 2281 | { |
| 2282 | } |
| 2283 | |
| 2284 | |
| 2285 | static void |
| 2286 | tracefile_state_finalize (LttvTracefileState *self) |
| 2287 | { |
| 2288 | G_OBJECT_CLASS(g_type_class_peek(LTTV_TRACEFILE_CONTEXT_TYPE))-> |
| 2289 | finalize(G_OBJECT(self)); |
| 2290 | } |
| 2291 | |
| 2292 | |
| 2293 | static void |
| 2294 | tracefile_state_class_init (LttvTracefileStateClass *klass) |
| 2295 | { |
| 2296 | GObjectClass *gobject_class = G_OBJECT_CLASS(klass); |
| 2297 | |
| 2298 | gobject_class->finalize = (void (*)(GObject *self)) tracefile_state_finalize; |
| 2299 | } |
| 2300 | |
| 2301 | |
| 2302 | GType |
| 2303 | lttv_tracefile_state_get_type(void) |
| 2304 | { |
| 2305 | static GType type = 0; |
| 2306 | if (type == 0) { |
| 2307 | static const GTypeInfo info = { |
| 2308 | sizeof (LttvTracefileStateClass), |
| 2309 | NULL, /* base_init */ |
| 2310 | NULL, /* base_finalize */ |
| 2311 | (GClassInitFunc) tracefile_state_class_init, /* class_init */ |
| 2312 | NULL, /* class_finalize */ |
| 2313 | NULL, /* class_data */ |
| 2314 | sizeof (LttvTracefileState), |
| 2315 | 0, /* n_preallocs */ |
| 2316 | (GInstanceInitFunc) tracefile_state_instance_init, /* instance_init */ |
| 2317 | NULL /* value handling */ |
| 2318 | }; |
| 2319 | |
| 2320 | type = g_type_register_static (LTTV_TRACEFILE_CONTEXT_TYPE, |
| 2321 | "LttvTracefileStateType", &info, 0); |
| 2322 | } |
| 2323 | return type; |
| 2324 | } |
| 2325 | |
| 2326 | |
| 2327 | static void module_init() |
| 2328 | { |
| 2329 | LTTV_STATE_UNNAMED = g_quark_from_string("unnamed"); |
| 2330 | LTTV_STATE_MODE_UNKNOWN = g_quark_from_string("MODE_UNKNOWN"); |
| 2331 | LTTV_STATE_USER_MODE = g_quark_from_string("USER_MODE"); |
| 2332 | LTTV_STATE_SYSCALL = g_quark_from_string("SYSCALL"); |
| 2333 | LTTV_STATE_TRAP = g_quark_from_string("TRAP"); |
| 2334 | LTTV_STATE_IRQ = g_quark_from_string("IRQ"); |
| 2335 | LTTV_STATE_SOFT_IRQ = g_quark_from_string("SOFTIRQ"); |
| 2336 | LTTV_STATE_SUBMODE_UNKNOWN = g_quark_from_string("UNKNOWN"); |
| 2337 | LTTV_STATE_SUBMODE_NONE = g_quark_from_string("NONE"); |
| 2338 | LTTV_STATE_WAIT_FORK = g_quark_from_string("WAIT_FORK"); |
| 2339 | LTTV_STATE_WAIT_CPU = g_quark_from_string("WAIT_CPU"); |
| 2340 | LTTV_STATE_EXIT = g_quark_from_string("EXIT"); |
| 2341 | LTTV_STATE_ZOMBIE = g_quark_from_string("ZOMBIE"); |
| 2342 | LTTV_STATE_WAIT = g_quark_from_string("WAIT"); |
| 2343 | LTTV_STATE_RUN = g_quark_from_string("RUN"); |
| 2344 | LTTV_STATE_DEAD = g_quark_from_string("DEAD"); |
| 2345 | LTTV_STATE_TRACEFILES = g_quark_from_string("tracefiles"); |
| 2346 | LTTV_STATE_PROCESSES = g_quark_from_string("processes"); |
| 2347 | LTTV_STATE_PROCESS = g_quark_from_string("process"); |
| 2348 | LTTV_STATE_RUNNING_PROCESS = g_quark_from_string("running_process"); |
| 2349 | LTTV_STATE_EVENT = g_quark_from_string("event"); |
| 2350 | LTTV_STATE_SAVED_STATES = g_quark_from_string("saved states"); |
| 2351 | LTTV_STATE_SAVED_STATES_TIME = g_quark_from_string("saved states time"); |
| 2352 | LTTV_STATE_TIME = g_quark_from_string("time"); |
| 2353 | LTTV_STATE_HOOKS = g_quark_from_string("saved state hooks"); |
| 2354 | LTTV_STATE_NAME_TABLES = g_quark_from_string("name tables"); |
| 2355 | LTTV_STATE_TRACE_STATE_USE_COUNT = |
| 2356 | g_quark_from_string("trace_state_use_count"); |
| 2357 | |
| 2358 | |
| 2359 | LTT_FACILITY_KERNEL = g_quark_from_string("kernel"); |
| 2360 | LTT_FACILITY_KERNEL_ARCH = g_quark_from_string("kernel_arch"); |
| 2361 | LTT_FACILITY_PROCESS = g_quark_from_string("process"); |
| 2362 | LTT_FACILITY_FS = g_quark_from_string("fs"); |
| 2363 | LTT_FACILITY_STATEDUMP = g_quark_from_string("statedump"); |
| 2364 | |
| 2365 | |
| 2366 | LTT_EVENT_SYSCALL_ENTRY = g_quark_from_string("syscall_entry"); |
| 2367 | LTT_EVENT_SYSCALL_EXIT = g_quark_from_string("syscall_exit"); |
| 2368 | LTT_EVENT_TRAP_ENTRY = g_quark_from_string("trap_entry"); |
| 2369 | LTT_EVENT_TRAP_EXIT = g_quark_from_string("trap_exit"); |
| 2370 | LTT_EVENT_IRQ_ENTRY = g_quark_from_string("irq_entry"); |
| 2371 | LTT_EVENT_IRQ_EXIT = g_quark_from_string("irq_exit"); |
| 2372 | LTT_EVENT_SOFT_IRQ_ENTRY = g_quark_from_string("soft_irq_entry"); |
| 2373 | LTT_EVENT_SOFT_IRQ_EXIT = g_quark_from_string("soft_irq_exit"); |
| 2374 | LTT_EVENT_SCHEDCHANGE = g_quark_from_string("schedchange"); |
| 2375 | LTT_EVENT_FORK = g_quark_from_string("fork"); |
| 2376 | LTT_EVENT_KERNEL_THREAD = g_quark_from_string("kernel_thread"); |
| 2377 | LTT_EVENT_EXIT = g_quark_from_string("exit"); |
| 2378 | LTT_EVENT_FREE = g_quark_from_string("free"); |
| 2379 | LTT_EVENT_EXEC = g_quark_from_string("exec"); |
| 2380 | LTT_EVENT_ENUM_PROCESS_STATE = g_quark_from_string("enumerate_process_state"); |
| 2381 | |
| 2382 | |
| 2383 | LTT_FIELD_SYSCALL_ID = g_quark_from_string("syscall_id"); |
| 2384 | LTT_FIELD_TRAP_ID = g_quark_from_string("trap_id"); |
| 2385 | LTT_FIELD_IRQ_ID = g_quark_from_string("irq_id"); |
| 2386 | LTT_FIELD_SOFT_IRQ_ID = g_quark_from_string("softirq_id"); |
| 2387 | LTT_FIELD_OUT = g_quark_from_string("out"); |
| 2388 | LTT_FIELD_IN = g_quark_from_string("in"); |
| 2389 | LTT_FIELD_OUT_STATE = g_quark_from_string("out_state"); |
| 2390 | LTT_FIELD_PARENT_PID = g_quark_from_string("parent_pid"); |
| 2391 | LTT_FIELD_CHILD_PID = g_quark_from_string("child_pid"); |
| 2392 | LTT_FIELD_PID = g_quark_from_string("pid"); |
| 2393 | LTT_FIELD_FILENAME = g_quark_from_string("filename"); |
| 2394 | LTT_FIELD_NAME = g_quark_from_string("name"); |
| 2395 | LTT_FIELD_MODE = g_quark_from_string("mode"); |
| 2396 | LTT_FIELD_SUBMODE = g_quark_from_string("submode"); |
| 2397 | LTT_FIELD_STATUS = g_quark_from_string("status"); |
| 2398 | |
| 2399 | } |
| 2400 | |
| 2401 | static void module_destroy() |
| 2402 | { |
| 2403 | } |
| 2404 | |
| 2405 | |
| 2406 | LTTV_MODULE("state", "State computation", \ |
| 2407 | "Update the system state, possibly saving it at intervals", \ |
| 2408 | module_init, module_destroy) |
| 2409 | |
| 2410 | |
| 2411 | |