| 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 | |
| 32 | #define PREALLOCATED_EXECUTION_STACK 10 |
| 33 | |
| 34 | /* Facilities Quarks */ |
| 35 | |
| 36 | GQuark |
| 37 | LTT_FACILITY_KERNEL, |
| 38 | LTT_FACILITY_PROCESS; |
| 39 | |
| 40 | /* Events Quarks */ |
| 41 | |
| 42 | GQuark |
| 43 | LTT_EVENT_SYSCALL_ENTRY, |
| 44 | LTT_EVENT_SYSCALL_EXIT, |
| 45 | LTT_EVENT_TRAP_ENTRY, |
| 46 | LTT_EVENT_TRAP_EXIT, |
| 47 | LTT_EVENT_IRQ_ENTRY, |
| 48 | LTT_EVENT_IRQ_EXIT, |
| 49 | LTT_EVENT_SCHEDCHANGE, |
| 50 | LTT_EVENT_FORK, |
| 51 | LTT_EVENT_EXIT, |
| 52 | LTT_EVENT_FREE; |
| 53 | |
| 54 | /* Fields Quarks */ |
| 55 | |
| 56 | GQuark |
| 57 | LTT_FIELD_SYSCALL_ID, |
| 58 | LTT_FIELD_TRAP_ID, |
| 59 | LTT_FIELD_IRQ_ID, |
| 60 | LTT_FIELD_OUT, |
| 61 | LTT_FIELD_IN, |
| 62 | LTT_FIELD_OUT_STATE, |
| 63 | LTT_FIELD_PARENT_PID, |
| 64 | LTT_FIELD_CHILD_PID, |
| 65 | LTT_FIELD_PID; |
| 66 | |
| 67 | LttvExecutionMode |
| 68 | LTTV_STATE_MODE_UNKNOWN, |
| 69 | LTTV_STATE_USER_MODE, |
| 70 | LTTV_STATE_SYSCALL, |
| 71 | LTTV_STATE_TRAP, |
| 72 | LTTV_STATE_IRQ; |
| 73 | |
| 74 | LttvExecutionSubmode |
| 75 | LTTV_STATE_SUBMODE_UNKNOWN, |
| 76 | LTTV_STATE_SUBMODE_NONE; |
| 77 | |
| 78 | LttvProcessStatus |
| 79 | LTTV_STATE_UNNAMED, |
| 80 | LTTV_STATE_WAIT_FORK, |
| 81 | LTTV_STATE_WAIT_CPU, |
| 82 | LTTV_STATE_EXIT, |
| 83 | LTTV_STATE_ZOMBIE, |
| 84 | LTTV_STATE_WAIT, |
| 85 | LTTV_STATE_RUN; |
| 86 | |
| 87 | static GQuark |
| 88 | LTTV_STATE_TRACEFILES, |
| 89 | LTTV_STATE_PROCESSES, |
| 90 | LTTV_STATE_PROCESS, |
| 91 | LTTV_STATE_EVENT, |
| 92 | LTTV_STATE_SAVED_STATES, |
| 93 | LTTV_STATE_SAVED_STATES_TIME, |
| 94 | LTTV_STATE_TIME, |
| 95 | LTTV_STATE_HOOKS, |
| 96 | LTTV_STATE_NAME_TABLES, |
| 97 | LTTV_STATE_TRACE_STATE_USE_COUNT; |
| 98 | |
| 99 | static void create_max_time(LttvTraceState *tcs); |
| 100 | |
| 101 | static void get_max_time(LttvTraceState *tcs); |
| 102 | |
| 103 | static void free_max_time(LttvTraceState *tcs); |
| 104 | |
| 105 | static void create_name_tables(LttvTraceState *tcs); |
| 106 | |
| 107 | static void get_name_tables(LttvTraceState *tcs); |
| 108 | |
| 109 | static void free_name_tables(LttvTraceState *tcs); |
| 110 | |
| 111 | static void free_saved_state(LttvTraceState *tcs); |
| 112 | |
| 113 | static void lttv_state_free_process_table(GHashTable *processes); |
| 114 | |
| 115 | |
| 116 | void lttv_state_save(LttvTraceState *self, LttvAttribute *container) |
| 117 | { |
| 118 | LTTV_TRACE_STATE_GET_CLASS(self)->state_save(self, container); |
| 119 | } |
| 120 | |
| 121 | |
| 122 | void lttv_state_restore(LttvTraceState *self, LttvAttribute *container) |
| 123 | { |
| 124 | LTTV_TRACE_STATE_GET_CLASS(self)->state_restore(self, container); |
| 125 | } |
| 126 | |
| 127 | |
| 128 | void lttv_state_state_saved_free(LttvTraceState *self, |
| 129 | LttvAttribute *container) |
| 130 | { |
| 131 | LTTV_TRACE_STATE_GET_CLASS(self)->state_saved_free(self, container); |
| 132 | } |
| 133 | |
| 134 | |
| 135 | guint process_hash(gconstpointer key) |
| 136 | { |
| 137 | guint pid = ((const LttvProcessState *)key)->pid; |
| 138 | return (pid>>8 ^ pid>>4 ^ pid>>2 ^ pid) ; |
| 139 | } |
| 140 | |
| 141 | |
| 142 | /* If the hash table hash function is well distributed, |
| 143 | * the process_equal should compare different pid */ |
| 144 | gboolean process_equal(gconstpointer a, gconstpointer b) |
| 145 | { |
| 146 | const LttvProcessState *process_a, *process_b; |
| 147 | gboolean ret = TRUE; |
| 148 | |
| 149 | process_a = (const LttvProcessState *)a; |
| 150 | process_b = (const LttvProcessState *)b; |
| 151 | |
| 152 | if(likely(process_a->pid != process_b->pid)) ret = FALSE; |
| 153 | else if(likely(process_a->pid == 0 && |
| 154 | process_a->last_cpu != process_b->last_cpu)) ret = FALSE; |
| 155 | |
| 156 | return ret; |
| 157 | } |
| 158 | |
| 159 | |
| 160 | static void |
| 161 | restore_init_state(LttvTraceState *self) |
| 162 | { |
| 163 | guint i, nb_tracefile; |
| 164 | |
| 165 | LttvTracefileState *tfcs; |
| 166 | |
| 167 | if(self->processes != NULL) lttv_state_free_process_table(self->processes); |
| 168 | self->processes = g_hash_table_new(process_hash, process_equal); |
| 169 | self->nb_event = 0; |
| 170 | |
| 171 | nb_tracefile = self->parent.tracefiles->len; |
| 172 | |
| 173 | for(i = 0 ; i < nb_tracefile ; i++) { |
| 174 | tfcs = |
| 175 | LTTV_TRACEFILE_STATE(g_array_index(self->parent.tracefiles, |
| 176 | LttvTracefileContext*, i)); |
| 177 | ltt_trace_time_span_get(self->parent.t, &tfcs->parent.timestamp, NULL); |
| 178 | // tfcs->saved_position = 0; |
| 179 | tfcs->process = lttv_state_create_process(tfcs, NULL,0); |
| 180 | tfcs->process->state->s = LTTV_STATE_RUN; |
| 181 | tfcs->process->last_cpu = tfcs->cpu_name; |
| 182 | tfcs->process->last_cpu_index = ((LttvTracefileContext*)tfcs)->index; |
| 183 | } |
| 184 | } |
| 185 | |
| 186 | static LttTime time_zero = {0,0}; |
| 187 | |
| 188 | static void |
| 189 | init(LttvTracesetState *self, LttvTraceset *ts) |
| 190 | { |
| 191 | guint i, j, nb_trace, nb_tracefile; |
| 192 | |
| 193 | LttvTraceContext *tc; |
| 194 | |
| 195 | LttvTraceState *tcs; |
| 196 | |
| 197 | LttvTracefileState *tfcs; |
| 198 | |
| 199 | LttvAttributeValue v; |
| 200 | |
| 201 | LTTV_TRACESET_CONTEXT_CLASS(g_type_class_peek(LTTV_TRACESET_CONTEXT_TYPE))-> |
| 202 | init((LttvTracesetContext *)self, ts); |
| 203 | |
| 204 | nb_trace = lttv_traceset_number(ts); |
| 205 | for(i = 0 ; i < nb_trace ; i++) { |
| 206 | tc = self->parent.traces[i]; |
| 207 | tcs = (LttvTraceState *)tc; |
| 208 | tcs->save_interval = LTTV_STATE_SAVE_INTERVAL; |
| 209 | lttv_attribute_find(tcs->parent.t_a, LTTV_STATE_TRACE_STATE_USE_COUNT, |
| 210 | LTTV_UINT, &v); |
| 211 | (*v.v_uint)++; |
| 212 | |
| 213 | if(*(v.v_uint) == 1) { |
| 214 | create_name_tables(tcs); |
| 215 | create_max_time(tcs); |
| 216 | } |
| 217 | get_name_tables(tcs); |
| 218 | get_max_time(tcs); |
| 219 | |
| 220 | nb_tracefile = tc->tracefiles->len; |
| 221 | |
| 222 | for(j = 0 ; j < nb_tracefile ; j++) { |
| 223 | tfcs = |
| 224 | LTTV_TRACEFILE_STATE(g_array_index(tc->tracefiles, |
| 225 | LttvTracefileContext*, j)); |
| 226 | tfcs->cpu_name = ltt_tracefile_name(tfcs->parent.tf); |
| 227 | } |
| 228 | tcs->processes = NULL; |
| 229 | restore_init_state(tcs); |
| 230 | } |
| 231 | } |
| 232 | |
| 233 | |
| 234 | static void |
| 235 | fini(LttvTracesetState *self) |
| 236 | { |
| 237 | guint i, nb_trace; |
| 238 | |
| 239 | LttvTraceState *tcs; |
| 240 | |
| 241 | LttvTracefileState *tfcs; |
| 242 | |
| 243 | LttvAttributeValue v; |
| 244 | |
| 245 | nb_trace = lttv_traceset_number(LTTV_TRACESET_CONTEXT(self)->ts); |
| 246 | for(i = 0 ; i < nb_trace ; i++) { |
| 247 | tcs = (LttvTraceState *)(LTTV_TRACESET_CONTEXT(self)->traces[i]); |
| 248 | lttv_attribute_find(tcs->parent.t_a, LTTV_STATE_TRACE_STATE_USE_COUNT, |
| 249 | LTTV_UINT, &v); |
| 250 | |
| 251 | g_assert(*(v.v_uint) != 0); |
| 252 | (*v.v_uint)--; |
| 253 | |
| 254 | if(*(v.v_uint) == 0) { |
| 255 | free_name_tables(tcs); |
| 256 | free_max_time(tcs); |
| 257 | free_saved_state(tcs); |
| 258 | } |
| 259 | lttv_state_free_process_table(tcs->processes); |
| 260 | tcs->processes = NULL; |
| 261 | } |
| 262 | LTTV_TRACESET_CONTEXT_CLASS(g_type_class_peek(LTTV_TRACESET_CONTEXT_TYPE))-> |
| 263 | fini((LttvTracesetContext *)self); |
| 264 | } |
| 265 | |
| 266 | |
| 267 | static LttvTracesetContext * |
| 268 | new_traceset_context(LttvTracesetContext *self) |
| 269 | { |
| 270 | return LTTV_TRACESET_CONTEXT(g_object_new(LTTV_TRACESET_STATE_TYPE, NULL)); |
| 271 | } |
| 272 | |
| 273 | |
| 274 | static LttvTraceContext * |
| 275 | new_trace_context(LttvTracesetContext *self) |
| 276 | { |
| 277 | return LTTV_TRACE_CONTEXT(g_object_new(LTTV_TRACE_STATE_TYPE, NULL)); |
| 278 | } |
| 279 | |
| 280 | |
| 281 | static LttvTracefileContext * |
| 282 | new_tracefile_context(LttvTracesetContext *self) |
| 283 | { |
| 284 | return LTTV_TRACEFILE_CONTEXT(g_object_new(LTTV_TRACEFILE_STATE_TYPE, NULL)); |
| 285 | } |
| 286 | |
| 287 | |
| 288 | /* Write the process state of the trace */ |
| 289 | |
| 290 | static void write_process_state(gpointer key, gpointer value, |
| 291 | gpointer user_data) |
| 292 | { |
| 293 | LttvProcessState *process; |
| 294 | |
| 295 | LttvExecutionState *es; |
| 296 | |
| 297 | FILE *fp = (FILE *)user_data; |
| 298 | |
| 299 | guint i; |
| 300 | |
| 301 | process = (LttvProcessState *)value; |
| 302 | fprintf(fp, |
| 303 | " <PROCESS CORE=%p PID=%u PPID=%u CTIME_S=%lu CTIME_NS=%lu NAME=\"%s\" CPU=\"%s\">\n", |
| 304 | process, process->pid, process->ppid, process->creation_time.tv_sec, |
| 305 | process->creation_time.tv_nsec, g_quark_to_string(process->name), |
| 306 | g_quark_to_string(process->last_cpu)); |
| 307 | |
| 308 | for(i = 0 ; i < process->execution_stack->len; i++) { |
| 309 | es = &g_array_index(process->execution_stack, LttvExecutionState, i); |
| 310 | fprintf(fp, " <ES MODE=\"%s\" SUBMODE=\"%s\" ENTRY_S=%lu ENTRY_NS=%lu", |
| 311 | g_quark_to_string(es->t), g_quark_to_string(es->n), |
| 312 | es->entry.tv_sec, es->entry.tv_nsec); |
| 313 | fprintf(fp, " CHANGE_S=%lu CHANGE_NS=%lu STATUS=\"%s\"/>\n", |
| 314 | es->change.tv_sec, es->change.tv_nsec, g_quark_to_string(es->s)); |
| 315 | } |
| 316 | fprintf(fp, " </PROCESS>\n"); |
| 317 | } |
| 318 | |
| 319 | |
| 320 | void lttv_state_write(LttvTraceState *self, LttTime t, FILE *fp) |
| 321 | { |
| 322 | guint i, nb_tracefile, nb_block, offset; |
| 323 | guint64 tsc; |
| 324 | |
| 325 | LttvTracefileState *tfcs; |
| 326 | |
| 327 | LttTracefile *tf; |
| 328 | |
| 329 | LttEventPosition *ep; |
| 330 | |
| 331 | ep = ltt_event_position_new(); |
| 332 | |
| 333 | fprintf(fp,"<PROCESS_STATE TIME_S=%lu TIME_NS=%lu>\n", t.tv_sec, t.tv_nsec); |
| 334 | |
| 335 | g_hash_table_foreach(self->processes, write_process_state, fp); |
| 336 | |
| 337 | nb_tracefile = self->parent.tracefiles->len; |
| 338 | |
| 339 | for(i = 0 ; i < nb_tracefile ; i++) { |
| 340 | tfcs = |
| 341 | LTTV_TRACEFILE_STATE(g_array_index(self->parent.tracefiles, |
| 342 | LttvTracefileContext*, i)); |
| 343 | fprintf(fp, " <TRACEFILE PID=%u TIMESTAMP_S=%lu TIMESTAMP_NS=%lu", |
| 344 | tfcs->process->pid, tfcs->parent.timestamp.tv_sec, |
| 345 | tfcs->parent.timestamp.tv_nsec); |
| 346 | LttEvent *e = ltt_tracefile_get_event(tfcs->parent.tf); |
| 347 | if(e == NULL) fprintf(fp,"/>\n"); |
| 348 | else { |
| 349 | ltt_event_position(e, ep); |
| 350 | ltt_event_position_get(ep, &tf, &nb_block, &offset, &tsc); |
| 351 | fprintf(fp, " BLOCK=%u OFFSET=%u TSC=%llu/>\n", nb_block, offset, |
| 352 | tsc); |
| 353 | } |
| 354 | } |
| 355 | g_free(ep); |
| 356 | fprintf(fp,"</PROCESS_STATE>"); |
| 357 | } |
| 358 | |
| 359 | |
| 360 | /* Copy each process from an existing hash table to a new one */ |
| 361 | |
| 362 | static void copy_process_state(gpointer key, gpointer value,gpointer user_data) |
| 363 | { |
| 364 | LttvProcessState *process, *new_process; |
| 365 | |
| 366 | GHashTable *new_processes = (GHashTable *)user_data; |
| 367 | |
| 368 | guint i; |
| 369 | |
| 370 | process = (LttvProcessState *)value; |
| 371 | new_process = g_new(LttvProcessState, 1); |
| 372 | *new_process = *process; |
| 373 | new_process->execution_stack = g_array_sized_new(FALSE, FALSE, |
| 374 | sizeof(LttvExecutionState), PREALLOCATED_EXECUTION_STACK); |
| 375 | g_array_set_size(new_process->execution_stack,process->execution_stack->len); |
| 376 | for(i = 0 ; i < process->execution_stack->len; i++) { |
| 377 | g_array_index(new_process->execution_stack, LttvExecutionState, i) = |
| 378 | g_array_index(process->execution_stack, LttvExecutionState, i); |
| 379 | } |
| 380 | new_process->state = &g_array_index(new_process->execution_stack, |
| 381 | LttvExecutionState, new_process->execution_stack->len - 1); |
| 382 | g_hash_table_insert(new_processes, new_process, new_process); |
| 383 | } |
| 384 | |
| 385 | |
| 386 | static GHashTable *lttv_state_copy_process_table(GHashTable *processes) |
| 387 | { |
| 388 | GHashTable *new_processes = g_hash_table_new(process_hash, process_equal); |
| 389 | |
| 390 | g_hash_table_foreach(processes, copy_process_state, new_processes); |
| 391 | return new_processes; |
| 392 | } |
| 393 | |
| 394 | |
| 395 | /* The saved state for each trace contains a member "processes", which |
| 396 | stores a copy of the process table, and a member "tracefiles" with |
| 397 | one entry per tracefile. Each tracefile has a "process" member pointing |
| 398 | to the current process and a "position" member storing the tracefile |
| 399 | position (needed to seek to the current "next" event. */ |
| 400 | |
| 401 | static void state_save(LttvTraceState *self, LttvAttribute *container) |
| 402 | { |
| 403 | guint i, nb_tracefile; |
| 404 | |
| 405 | LttvTracefileState *tfcs; |
| 406 | |
| 407 | LttvAttribute *tracefiles_tree, *tracefile_tree; |
| 408 | |
| 409 | LttvAttributeType type; |
| 410 | |
| 411 | LttvAttributeValue value; |
| 412 | |
| 413 | LttvAttributeName name; |
| 414 | |
| 415 | LttEventPosition *ep; |
| 416 | |
| 417 | tracefiles_tree = lttv_attribute_find_subdir(container, |
| 418 | LTTV_STATE_TRACEFILES); |
| 419 | |
| 420 | value = lttv_attribute_add(container, LTTV_STATE_PROCESSES, |
| 421 | LTTV_POINTER); |
| 422 | *(value.v_pointer) = lttv_state_copy_process_table(self->processes); |
| 423 | |
| 424 | nb_tracefile = self->parent.tracefiles->len; |
| 425 | |
| 426 | for(i = 0 ; i < nb_tracefile ; i++) { |
| 427 | tfcs = |
| 428 | LTTV_TRACEFILE_STATE(g_array_index(self->parent.tracefiles, |
| 429 | LttvTracefileContext*, i)); |
| 430 | tracefile_tree = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL); |
| 431 | value = lttv_attribute_add(tracefiles_tree, i, |
| 432 | LTTV_GOBJECT); |
| 433 | *(value.v_gobject) = (GObject *)tracefile_tree; |
| 434 | value = lttv_attribute_add(tracefile_tree, LTTV_STATE_PROCESS, |
| 435 | LTTV_UINT); |
| 436 | *(value.v_uint) = tfcs->process->pid; |
| 437 | value = lttv_attribute_add(tracefile_tree, LTTV_STATE_EVENT, |
| 438 | LTTV_POINTER); |
| 439 | /* Only save the position of the tfs is in the pqueue */ |
| 440 | if(!g_tree_lookup(self->parent.ts_context->pqueue, &tfcs->parent)) { |
| 441 | *(value.v_pointer) = NULL; |
| 442 | } else { |
| 443 | LttEvent *e = ltt_tracefile_get_event(tfcs->parent.tf); |
| 444 | ep = ltt_event_position_new(); |
| 445 | ltt_event_position(e, ep); |
| 446 | *(value.v_pointer) = ep; |
| 447 | |
| 448 | guint nb_block, offset; |
| 449 | guint64 tsc; |
| 450 | LttTracefile *tf; |
| 451 | ltt_event_position_get(ep, &tf, &nb_block, &offset, &tsc); |
| 452 | g_debug("Block %u offset %u tsc %llu time %lu.%lu", nb_block, offset, |
| 453 | tsc, |
| 454 | tfcs->parent.timestamp.tv_sec, tfcs->parent.timestamp.tv_nsec); |
| 455 | } |
| 456 | } |
| 457 | } |
| 458 | |
| 459 | |
| 460 | static void state_restore(LttvTraceState *self, LttvAttribute *container) |
| 461 | { |
| 462 | guint i, nb_tracefile, pid; |
| 463 | |
| 464 | LttvTracefileState *tfcs; |
| 465 | |
| 466 | LttvAttribute *tracefiles_tree, *tracefile_tree; |
| 467 | |
| 468 | LttvAttributeType type; |
| 469 | |
| 470 | LttvAttributeValue value; |
| 471 | |
| 472 | LttvAttributeName name; |
| 473 | |
| 474 | LttEventPosition *ep; |
| 475 | |
| 476 | LttvTracesetContext *tsc = self->parent.ts_context; |
| 477 | |
| 478 | tracefiles_tree = lttv_attribute_find_subdir(container, |
| 479 | LTTV_STATE_TRACEFILES); |
| 480 | |
| 481 | type = lttv_attribute_get_by_name(container, LTTV_STATE_PROCESSES, |
| 482 | &value); |
| 483 | g_assert(type == LTTV_POINTER); |
| 484 | lttv_state_free_process_table(self->processes); |
| 485 | self->processes = lttv_state_copy_process_table(*(value.v_pointer)); |
| 486 | |
| 487 | nb_tracefile = self->parent.tracefiles->len; |
| 488 | |
| 489 | for(i = 0 ; i < nb_tracefile ; i++) { |
| 490 | tfcs = |
| 491 | LTTV_TRACEFILE_STATE(g_array_index(self->parent.tracefiles, |
| 492 | LttvTracefileContext*, i)); |
| 493 | type = lttv_attribute_get(tracefiles_tree, i, &name, &value); |
| 494 | g_assert(type == LTTV_GOBJECT); |
| 495 | tracefile_tree = *((LttvAttribute **)(value.v_gobject)); |
| 496 | |
| 497 | type = lttv_attribute_get_by_name(tracefile_tree, LTTV_STATE_PROCESS, |
| 498 | &value); |
| 499 | g_assert(type == LTTV_UINT); |
| 500 | pid = *(value.v_uint); |
| 501 | tfcs->process = lttv_state_find_process_or_create(tfcs, pid); |
| 502 | |
| 503 | type = lttv_attribute_get_by_name(tracefile_tree, LTTV_STATE_EVENT, |
| 504 | &value); |
| 505 | g_assert(type == LTTV_POINTER); |
| 506 | g_assert(*(value.v_pointer) != NULL); |
| 507 | ep = *(value.v_pointer); |
| 508 | g_assert(tfcs->parent.t_context != NULL); |
| 509 | |
| 510 | g_tree_destroy(tsc->pqueue); |
| 511 | tsc->pqueue = g_tree_new(compare_tracefile); |
| 512 | |
| 513 | LttvTracefileContext *tfc = LTTV_TRACEFILE_CONTEXT(tfcs); |
| 514 | |
| 515 | if(ep != NULL) { |
| 516 | g_assert(ltt_tracefile_seek_position(tfc->tf, ep) == 0); |
| 517 | tfc->timestamp = ltt_event_time(ltt_tracefile_get_event(tfc->tf)); |
| 518 | g_tree_insert(tsc->pqueue, tfc, tfc); |
| 519 | } else { |
| 520 | tfc->timestamp = ltt_time_infinite; |
| 521 | } |
| 522 | } |
| 523 | } |
| 524 | |
| 525 | |
| 526 | static void state_saved_free(LttvTraceState *self, LttvAttribute *container) |
| 527 | { |
| 528 | guint i, nb_tracefile; |
| 529 | |
| 530 | LttvTracefileState *tfcs; |
| 531 | |
| 532 | LttvAttribute *tracefiles_tree, *tracefile_tree; |
| 533 | |
| 534 | LttvAttributeType type; |
| 535 | |
| 536 | LttvAttributeValue value; |
| 537 | |
| 538 | LttvAttributeName name; |
| 539 | |
| 540 | LttEventPosition *ep; |
| 541 | |
| 542 | tracefiles_tree = lttv_attribute_find_subdir(container, |
| 543 | LTTV_STATE_TRACEFILES); |
| 544 | g_object_ref(G_OBJECT(tracefiles_tree)); |
| 545 | lttv_attribute_remove_by_name(container, LTTV_STATE_TRACEFILES); |
| 546 | |
| 547 | type = lttv_attribute_get_by_name(container, LTTV_STATE_PROCESSES, |
| 548 | &value); |
| 549 | g_assert(type == LTTV_POINTER); |
| 550 | lttv_state_free_process_table(*(value.v_pointer)); |
| 551 | *(value.v_pointer) = NULL; |
| 552 | lttv_attribute_remove_by_name(container, LTTV_STATE_PROCESSES); |
| 553 | |
| 554 | nb_tracefile = self->parent.tracefiles->len; |
| 555 | |
| 556 | for(i = 0 ; i < nb_tracefile ; i++) { |
| 557 | tfcs = |
| 558 | LTTV_TRACEFILE_STATE(g_array_index(self->parent.tracefiles, |
| 559 | LttvTracefileContext*, i)); |
| 560 | type = lttv_attribute_get(tracefiles_tree, i, &name, &value); |
| 561 | g_assert(type == LTTV_GOBJECT); |
| 562 | tracefile_tree = *((LttvAttribute **)(value.v_gobject)); |
| 563 | |
| 564 | type = lttv_attribute_get_by_name(tracefile_tree, LTTV_STATE_EVENT, |
| 565 | &value); |
| 566 | g_assert(type == LTTV_POINTER); |
| 567 | if(*(value.v_pointer) != NULL) g_free(*(value.v_pointer)); |
| 568 | } |
| 569 | g_object_unref(G_OBJECT(tracefiles_tree)); |
| 570 | } |
| 571 | |
| 572 | |
| 573 | static void free_saved_state(LttvTraceState *self) |
| 574 | { |
| 575 | guint i, nb; |
| 576 | |
| 577 | LttvAttributeType type; |
| 578 | |
| 579 | LttvAttributeValue value; |
| 580 | |
| 581 | LttvAttributeName name; |
| 582 | |
| 583 | LttvAttribute *saved_states; |
| 584 | |
| 585 | saved_states = lttv_attribute_find_subdir(self->parent.t_a, |
| 586 | LTTV_STATE_SAVED_STATES); |
| 587 | |
| 588 | nb = lttv_attribute_get_number(saved_states); |
| 589 | for(i = 0 ; i < nb ; i++) { |
| 590 | type = lttv_attribute_get(saved_states, i, &name, &value); |
| 591 | g_assert(type == LTTV_GOBJECT); |
| 592 | state_saved_free(self, *((LttvAttribute **)value.v_gobject)); |
| 593 | } |
| 594 | |
| 595 | lttv_attribute_remove_by_name(self->parent.t_a, LTTV_STATE_SAVED_STATES); |
| 596 | } |
| 597 | |
| 598 | |
| 599 | static void |
| 600 | create_max_time(LttvTraceState *tcs) |
| 601 | { |
| 602 | LttvAttributeValue v; |
| 603 | |
| 604 | lttv_attribute_find(tcs->parent.t_a, LTTV_STATE_SAVED_STATES_TIME, |
| 605 | LTTV_POINTER, &v); |
| 606 | g_assert(*(v.v_pointer) == NULL); |
| 607 | *(v.v_pointer) = g_new(LttTime,1); |
| 608 | *((LttTime *)*(v.v_pointer)) = time_zero; |
| 609 | } |
| 610 | |
| 611 | |
| 612 | static void |
| 613 | get_max_time(LttvTraceState *tcs) |
| 614 | { |
| 615 | LttvAttributeValue v; |
| 616 | |
| 617 | lttv_attribute_find(tcs->parent.t_a, LTTV_STATE_SAVED_STATES_TIME, |
| 618 | LTTV_POINTER, &v); |
| 619 | g_assert(*(v.v_pointer) != NULL); |
| 620 | tcs->max_time_state_recomputed_in_seek = (LttTime *)*(v.v_pointer); |
| 621 | } |
| 622 | |
| 623 | |
| 624 | static void |
| 625 | free_max_time(LttvTraceState *tcs) |
| 626 | { |
| 627 | LttvAttributeValue v; |
| 628 | |
| 629 | lttv_attribute_find(tcs->parent.t_a, LTTV_STATE_SAVED_STATES_TIME, |
| 630 | LTTV_POINTER, &v); |
| 631 | g_free(*(v.v_pointer)); |
| 632 | *(v.v_pointer) = NULL; |
| 633 | } |
| 634 | |
| 635 | |
| 636 | typedef struct _LttvNameTables { |
| 637 | // FIXME GQuark *eventtype_names; |
| 638 | GQuark *syscall_names; |
| 639 | GQuark *trap_names; |
| 640 | GQuark *irq_names; |
| 641 | } LttvNameTables; |
| 642 | |
| 643 | |
| 644 | static void |
| 645 | create_name_tables(LttvTraceState *tcs) |
| 646 | { |
| 647 | int i, nb; |
| 648 | |
| 649 | GQuark f_name, e_name; |
| 650 | |
| 651 | LttvTraceHook *h; |
| 652 | |
| 653 | LttvTraceHookByFacility *thf; |
| 654 | |
| 655 | LttEventType *et; |
| 656 | |
| 657 | LttType *t; |
| 658 | |
| 659 | GString *fe_name = g_string_new(""); |
| 660 | |
| 661 | LttvNameTables *name_tables = g_new(LttvNameTables, 1); |
| 662 | |
| 663 | LttvAttributeValue v; |
| 664 | |
| 665 | lttv_attribute_find(tcs->parent.t_a, LTTV_STATE_NAME_TABLES, |
| 666 | LTTV_POINTER, &v); |
| 667 | g_assert(*(v.v_pointer) == NULL); |
| 668 | *(v.v_pointer) = name_tables; |
| 669 | #if 0 // Use iteration over the facilities_by_name and then list all event |
| 670 | // types of each facility |
| 671 | nb = ltt_trace_eventtype_number(tcs->parent.t); |
| 672 | name_tables->eventtype_names = g_new(GQuark, nb); |
| 673 | for(i = 0 ; i < nb ; i++) { |
| 674 | et = ltt_trace_eventtype_get(tcs->parent.t, i); |
| 675 | e_name = ltt_eventtype_name(et); |
| 676 | f_name = ltt_facility_name(ltt_eventtype_facility(et)); |
| 677 | g_string_printf(fe_name, "%s.%s", f_name, e_name); |
| 678 | name_tables->eventtype_names[i] = g_quark_from_string(fe_name->str); |
| 679 | } |
| 680 | #endif //0 |
| 681 | if(lttv_trace_find_hook(tcs->parent.t, |
| 682 | LTT_FACILITY_KERNEL, LTT_EVENT_SYSCALL_ENTRY, |
| 683 | LTT_FIELD_SYSCALL_ID, 0, 0, |
| 684 | NULL, h)) |
| 685 | return; |
| 686 | |
| 687 | thf = lttv_trace_hook_get_first(h); |
| 688 | |
| 689 | t = ltt_field_type(thf->f1); |
| 690 | nb = ltt_type_element_number(t); |
| 691 | |
| 692 | lttv_trace_hook_destroy(h); |
| 693 | |
| 694 | /* CHECK syscalls should be an enum but currently are not! |
| 695 | name_tables->syscall_names = g_new(GQuark, nb); |
| 696 | |
| 697 | for(i = 0 ; i < nb ; i++) { |
| 698 | name_tables->syscall_names[i] = g_quark_from_string( |
| 699 | ltt_enum_string_get(t, i)); |
| 700 | } |
| 701 | */ |
| 702 | |
| 703 | name_tables->syscall_names = g_new(GQuark, 256); |
| 704 | for(i = 0 ; i < 256 ; i++) { |
| 705 | g_string_printf(fe_name, "syscall %d", i); |
| 706 | name_tables->syscall_names[i] = g_quark_from_string(fe_name->str); |
| 707 | } |
| 708 | |
| 709 | if(lttv_trace_find_hook(tcs->parent.t, LTT_FACILITY_KERNEL, |
| 710 | LTT_EVENT_TRAP_ENTRY, |
| 711 | LTT_FIELD_TRAP_ID, 0, 0, |
| 712 | NULL, h)) |
| 713 | return; |
| 714 | |
| 715 | thf = lttv_trace_hook_get_first(h); |
| 716 | |
| 717 | t = ltt_field_type(thf->f1); |
| 718 | nb = ltt_type_element_number(t); |
| 719 | |
| 720 | lttv_trace_hook_destroy(h); |
| 721 | |
| 722 | /* |
| 723 | name_tables->trap_names = g_new(GQuark, nb); |
| 724 | for(i = 0 ; i < nb ; i++) { |
| 725 | name_tables->trap_names[i] = g_quark_from_string( |
| 726 | ltt_enum_string_get(t, i)); |
| 727 | } |
| 728 | */ |
| 729 | |
| 730 | name_tables->trap_names = g_new(GQuark, 256); |
| 731 | for(i = 0 ; i < 256 ; i++) { |
| 732 | g_string_printf(fe_name, "trap %d", i); |
| 733 | name_tables->trap_names[i] = g_quark_from_string(fe_name->str); |
| 734 | } |
| 735 | |
| 736 | if(lttv_trace_find_hook(tcs->parent.t, |
| 737 | LTT_FACILITY_KERNEL, LTT_EVENT_IRQ_ENTRY, |
| 738 | LTT_FIELD_IRQ_ID, 0, 0, |
| 739 | NULL, h)) |
| 740 | return; |
| 741 | |
| 742 | thf = lttv_trace_hook_get_first(h); |
| 743 | |
| 744 | t = ltt_field_type(thf->f1); |
| 745 | nb = ltt_type_element_number(t); |
| 746 | |
| 747 | lttv_trace_hook_destroy(h); |
| 748 | |
| 749 | /* |
| 750 | name_tables->irq_names = g_new(GQuark, nb); |
| 751 | for(i = 0 ; i < nb ; i++) { |
| 752 | name_tables->irq_names[i] = g_quark_from_string(ltt_enum_string_get(t, i)); |
| 753 | } |
| 754 | */ |
| 755 | |
| 756 | name_tables->irq_names = g_new(GQuark, 256); |
| 757 | for(i = 0 ; i < 256 ; i++) { |
| 758 | g_string_printf(fe_name, "irq %d", i); |
| 759 | name_tables->irq_names[i] = g_quark_from_string(fe_name->str); |
| 760 | } |
| 761 | |
| 762 | g_string_free(fe_name, TRUE); |
| 763 | } |
| 764 | |
| 765 | |
| 766 | static void |
| 767 | get_name_tables(LttvTraceState *tcs) |
| 768 | { |
| 769 | LttvNameTables *name_tables; |
| 770 | |
| 771 | LttvAttributeValue v; |
| 772 | |
| 773 | lttv_attribute_find(tcs->parent.t_a, LTTV_STATE_NAME_TABLES, |
| 774 | LTTV_POINTER, &v); |
| 775 | g_assert(*(v.v_pointer) != NULL); |
| 776 | name_tables = (LttvNameTables *)*(v.v_pointer); |
| 777 | //tcs->eventtype_names = name_tables->eventtype_names; |
| 778 | tcs->syscall_names = name_tables->syscall_names; |
| 779 | tcs->trap_names = name_tables->trap_names; |
| 780 | tcs->irq_names = name_tables->irq_names; |
| 781 | } |
| 782 | |
| 783 | |
| 784 | static void |
| 785 | free_name_tables(LttvTraceState *tcs) |
| 786 | { |
| 787 | LttvNameTables *name_tables; |
| 788 | |
| 789 | LttvAttributeValue v; |
| 790 | |
| 791 | lttv_attribute_find(tcs->parent.t_a, LTTV_STATE_NAME_TABLES, |
| 792 | LTTV_POINTER, &v); |
| 793 | name_tables = (LttvNameTables *)*(v.v_pointer); |
| 794 | *(v.v_pointer) = NULL; |
| 795 | |
| 796 | // g_free(name_tables->eventtype_names); |
| 797 | g_free(name_tables->syscall_names); |
| 798 | g_free(name_tables->trap_names); |
| 799 | g_free(name_tables->irq_names); |
| 800 | g_free(name_tables); |
| 801 | } |
| 802 | |
| 803 | |
| 804 | static void push_state(LttvTracefileState *tfs, LttvExecutionMode t, |
| 805 | guint state_id) |
| 806 | { |
| 807 | LttvExecutionState *es; |
| 808 | |
| 809 | LttvProcessState *process = tfs->process; |
| 810 | |
| 811 | guint depth = process->execution_stack->len; |
| 812 | |
| 813 | g_array_set_size(process->execution_stack, depth + 1); |
| 814 | es = &g_array_index(process->execution_stack, LttvExecutionState, depth); |
| 815 | es->t = t; |
| 816 | es->n = state_id; |
| 817 | es->entry = es->change = tfs->parent.timestamp; |
| 818 | es->s = process->state->s; |
| 819 | process->state = es; |
| 820 | } |
| 821 | |
| 822 | |
| 823 | static void pop_state(LttvTracefileState *tfs, LttvExecutionMode t) |
| 824 | { |
| 825 | LttvProcessState *process = tfs->process; |
| 826 | |
| 827 | guint depth = process->execution_stack->len; |
| 828 | |
| 829 | if(process->state->t != t){ |
| 830 | g_info("Different execution mode type (%lu.%09lu): ignore it\n", |
| 831 | tfs->parent.timestamp.tv_sec, tfs->parent.timestamp.tv_nsec); |
| 832 | g_info("process state has %s when pop_int is %s\n", |
| 833 | g_quark_to_string(process->state->t), |
| 834 | g_quark_to_string(t)); |
| 835 | g_info("{ %u, %u, %s, %s }\n", |
| 836 | process->pid, |
| 837 | process->ppid, |
| 838 | g_quark_to_string(process->name), |
| 839 | g_quark_to_string(process->state->s)); |
| 840 | return; |
| 841 | } |
| 842 | |
| 843 | if(depth == 1){ |
| 844 | g_info("Trying to pop last state on stack (%lu.%09lu): ignore it\n", |
| 845 | tfs->parent.timestamp.tv_sec, tfs->parent.timestamp.tv_nsec); |
| 846 | return; |
| 847 | } |
| 848 | |
| 849 | g_array_set_size(process->execution_stack, depth - 1); |
| 850 | process->state = &g_array_index(process->execution_stack, LttvExecutionState, |
| 851 | depth - 2); |
| 852 | process->state->change = tfs->parent.timestamp; |
| 853 | } |
| 854 | |
| 855 | |
| 856 | LttvProcessState * |
| 857 | lttv_state_create_process(LttvTracefileState *tfs, LttvProcessState *parent, |
| 858 | guint pid) |
| 859 | { |
| 860 | LttvProcessState *process = g_new(LttvProcessState, 1); |
| 861 | |
| 862 | LttvExecutionState *es; |
| 863 | |
| 864 | LttvTraceContext *tc; |
| 865 | |
| 866 | LttvTraceState *tcs; |
| 867 | |
| 868 | char buffer[128]; |
| 869 | |
| 870 | tc = tfs->parent.t_context; |
| 871 | tcs = (LttvTraceState *)tc; |
| 872 | |
| 873 | process->pid = pid; |
| 874 | process->last_cpu = tfs->cpu_name; |
| 875 | process->last_cpu_index = ((LttvTracefileContext*)tfs)->index; |
| 876 | g_info("Process %u, core %p", process->pid, process); |
| 877 | g_hash_table_insert(tcs->processes, process, process); |
| 878 | |
| 879 | if(parent) { |
| 880 | process->ppid = parent->pid; |
| 881 | process->name = parent->name; |
| 882 | process->creation_time = tfs->parent.timestamp; |
| 883 | } |
| 884 | |
| 885 | /* No parent. This process exists but we are missing all information about |
| 886 | its creation. The birth time is set to zero but we remember the time of |
| 887 | insertion */ |
| 888 | |
| 889 | else { |
| 890 | process->ppid = 0; |
| 891 | process->name = LTTV_STATE_UNNAMED; |
| 892 | process->creation_time = ltt_time_zero; |
| 893 | } |
| 894 | |
| 895 | process->insertion_time = tfs->parent.timestamp; |
| 896 | sprintf(buffer,"%d-%lu.%lu",pid, process->creation_time.tv_sec, |
| 897 | process->creation_time.tv_nsec); |
| 898 | process->pid_time = g_quark_from_string(buffer); |
| 899 | process->last_cpu = tfs->cpu_name; |
| 900 | process->last_cpu_index = ((LttvTracefileContext*)tfs)->index; |
| 901 | process->execution_stack = g_array_sized_new(FALSE, FALSE, |
| 902 | sizeof(LttvExecutionState), PREALLOCATED_EXECUTION_STACK); |
| 903 | g_array_set_size(process->execution_stack, 1); |
| 904 | es = process->state = &g_array_index(process->execution_stack, |
| 905 | LttvExecutionState, 0); |
| 906 | es->t = LTTV_STATE_USER_MODE; |
| 907 | es->n = LTTV_STATE_SUBMODE_NONE; |
| 908 | es->entry = tfs->parent.timestamp; |
| 909 | g_assert(tfs->parent.timestamp.tv_sec != 0); |
| 910 | es->change = tfs->parent.timestamp; |
| 911 | es->s = LTTV_STATE_WAIT_FORK; |
| 912 | |
| 913 | return process; |
| 914 | } |
| 915 | |
| 916 | LttvProcessState *lttv_state_find_process(LttvTracefileState *tfs, |
| 917 | guint pid) |
| 918 | { |
| 919 | LttvProcessState key; |
| 920 | LttvProcessState *process; |
| 921 | |
| 922 | LttvTraceState* ts = (LttvTraceState*)tfs->parent.t_context; |
| 923 | |
| 924 | key.pid = pid; |
| 925 | key.last_cpu = tfs->cpu_name; |
| 926 | process = g_hash_table_lookup(ts->processes, &key); |
| 927 | return process; |
| 928 | } |
| 929 | |
| 930 | LttvProcessState * |
| 931 | lttv_state_find_process_or_create(LttvTracefileState *tfs, guint pid) |
| 932 | { |
| 933 | LttvProcessState *process = lttv_state_find_process(tfs, pid); |
| 934 | |
| 935 | if(unlikely(process == NULL)) process = lttv_state_create_process(tfs, NULL, pid); |
| 936 | return process; |
| 937 | } |
| 938 | |
| 939 | /* FIXME : this function should be called when we receive an event telling that |
| 940 | * release_task has been called in the kernel. In happens generally when |
| 941 | * the parent waits for its child terminaison, but may also happen in special |
| 942 | * cases in the child's exit : when the parent ignores its children SIGCCHLD or |
| 943 | * has the flag SA_NOCLDWAIT. It can also happen when the child is part |
| 944 | * of a killed thread ground, but isn't the leader. |
| 945 | */ |
| 946 | static void exit_process(LttvTracefileState *tfs, LttvProcessState *process) |
| 947 | { |
| 948 | LttvTraceState *ts = LTTV_TRACE_STATE(tfs->parent.t_context); |
| 949 | LttvProcessState key; |
| 950 | |
| 951 | key.pid = process->pid; |
| 952 | key.last_cpu = process->last_cpu; |
| 953 | g_hash_table_remove(ts->processes, &key); |
| 954 | g_array_free(process->execution_stack, TRUE); |
| 955 | g_free(process); |
| 956 | } |
| 957 | |
| 958 | |
| 959 | static void free_process_state(gpointer key, gpointer value,gpointer user_data) |
| 960 | { |
| 961 | g_array_free(((LttvProcessState *)value)->execution_stack, TRUE); |
| 962 | g_free(value); |
| 963 | } |
| 964 | |
| 965 | |
| 966 | static void lttv_state_free_process_table(GHashTable *processes) |
| 967 | { |
| 968 | g_hash_table_foreach(processes, free_process_state, NULL); |
| 969 | g_hash_table_destroy(processes); |
| 970 | } |
| 971 | |
| 972 | |
| 973 | static gboolean syscall_entry(void *hook_data, void *call_data) |
| 974 | { |
| 975 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 976 | LttEvent *e = ltt_tracefile_get_event(s->parent.tf); |
| 977 | LttvTraceHookByFacility *thf = (LttvTraceHookByFacility *)hook_data; |
| 978 | LttField *f = thf->f1; |
| 979 | |
| 980 | LttvExecutionSubmode submode; |
| 981 | |
| 982 | submode = ((LttvTraceState *)(s->parent.t_context))->syscall_names[ |
| 983 | ltt_event_get_unsigned(e, f)]; |
| 984 | push_state(s, LTTV_STATE_SYSCALL, submode); |
| 985 | return FALSE; |
| 986 | } |
| 987 | |
| 988 | |
| 989 | static gboolean syscall_exit(void *hook_data, void *call_data) |
| 990 | { |
| 991 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 992 | |
| 993 | pop_state(s, LTTV_STATE_SYSCALL); |
| 994 | return FALSE; |
| 995 | } |
| 996 | |
| 997 | |
| 998 | static gboolean trap_entry(void *hook_data, void *call_data) |
| 999 | { |
| 1000 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 1001 | LttEvent *e = ltt_tracefile_get_event(s->parent.tf); |
| 1002 | LttvTraceHookByFacility *thf = (LttvTraceHookByFacility *)hook_data; |
| 1003 | LttField *f = thf->f1; |
| 1004 | |
| 1005 | LttvExecutionSubmode submode; |
| 1006 | |
| 1007 | submode = ((LttvTraceState *)(s->parent.t_context))->trap_names[ |
| 1008 | ltt_event_get_unsigned(e, f)]; |
| 1009 | push_state(s, LTTV_STATE_TRAP, submode); |
| 1010 | return FALSE; |
| 1011 | } |
| 1012 | |
| 1013 | |
| 1014 | static gboolean trap_exit(void *hook_data, void *call_data) |
| 1015 | { |
| 1016 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 1017 | |
| 1018 | pop_state(s, LTTV_STATE_TRAP); |
| 1019 | return FALSE; |
| 1020 | } |
| 1021 | |
| 1022 | |
| 1023 | static gboolean irq_entry(void *hook_data, void *call_data) |
| 1024 | { |
| 1025 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 1026 | LttEvent *e = ltt_tracefile_get_event(s->parent.tf); |
| 1027 | guint8 fac_id = ltt_event_facility_id(e); |
| 1028 | guint8 ev_id = ltt_event_eventtype_id(e); |
| 1029 | LttvTraceHookByFacility *thf = (LttvTraceHookByFacility *)hook_data; |
| 1030 | // g_assert(lttv_trace_hook_get_first((LttvTraceHook *)hook_data)->f1 != NULL); |
| 1031 | g_assert(thf->f1 != NULL); |
| 1032 | // g_assert(thf == lttv_trace_hook_get_first((LttvTraceHook *)hook_data)); |
| 1033 | LttField *f = thf->f1; |
| 1034 | |
| 1035 | LttvExecutionSubmode submode; |
| 1036 | |
| 1037 | submode = ((LttvTraceState *)(s->parent.t_context))->irq_names[ |
| 1038 | ltt_event_get_unsigned(e, f)]; |
| 1039 | |
| 1040 | /* Do something with the info about being in user or system mode when int? */ |
| 1041 | push_state(s, LTTV_STATE_IRQ, submode); |
| 1042 | return FALSE; |
| 1043 | } |
| 1044 | |
| 1045 | |
| 1046 | static gboolean irq_exit(void *hook_data, void *call_data) |
| 1047 | { |
| 1048 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 1049 | |
| 1050 | pop_state(s, LTTV_STATE_IRQ); |
| 1051 | return FALSE; |
| 1052 | } |
| 1053 | |
| 1054 | |
| 1055 | static gboolean schedchange(void *hook_data, void *call_data) |
| 1056 | { |
| 1057 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 1058 | LttEvent *e = ltt_tracefile_get_event(s->parent.tf); |
| 1059 | LttvTraceHookByFacility *thf = (LttvTraceHookByFacility *)hook_data; |
| 1060 | guint pid_in, pid_out; |
| 1061 | gint state_out; |
| 1062 | |
| 1063 | pid_out = ltt_event_get_unsigned(e, thf->f1); |
| 1064 | pid_in = ltt_event_get_unsigned(e, thf->f2); |
| 1065 | state_out = ltt_event_get_int(e, thf->f3); |
| 1066 | |
| 1067 | if(likely(s->process != NULL)) { |
| 1068 | |
| 1069 | /* We could not know but it was not the idle process executing. |
| 1070 | This should only happen at the beginning, before the first schedule |
| 1071 | event, and when the initial information (current process for each CPU) |
| 1072 | is missing. It is not obvious how we could, after the fact, compensate |
| 1073 | the wrongly attributed statistics. */ |
| 1074 | |
| 1075 | if(unlikely(s->process->pid != pid_out)) { |
| 1076 | g_assert(s->process->pid == 0); |
| 1077 | } |
| 1078 | |
| 1079 | if(unlikely(s->process->state->s == LTTV_STATE_EXIT)) { |
| 1080 | s->process->state->s = LTTV_STATE_ZOMBIE; |
| 1081 | } else { |
| 1082 | if(unlikely(state_out == 0)) s->process->state->s = LTTV_STATE_WAIT_CPU; |
| 1083 | else s->process->state->s = LTTV_STATE_WAIT; |
| 1084 | } /* FIXME : we do not remove process here, because the kernel |
| 1085 | * still has them : they may be zombies. We need to know |
| 1086 | * exactly when release_task is executed on the PID to |
| 1087 | * know when the zombie is destroyed. |
| 1088 | */ |
| 1089 | //else |
| 1090 | // exit_process(s, s->process); |
| 1091 | |
| 1092 | s->process->state->change = s->parent.timestamp; |
| 1093 | } |
| 1094 | s->process = lttv_state_find_process_or_create(s, pid_in); |
| 1095 | s->process->state->s = LTTV_STATE_RUN; |
| 1096 | s->process->last_cpu = s->cpu_name; |
| 1097 | s->process->last_cpu_index = ((LttvTracefileContext*)s)->index; |
| 1098 | s->process->state->change = s->parent.timestamp; |
| 1099 | return FALSE; |
| 1100 | } |
| 1101 | |
| 1102 | static gboolean process_fork(void *hook_data, void *call_data) |
| 1103 | { |
| 1104 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 1105 | LttEvent *e = ltt_tracefile_get_event(s->parent.tf); |
| 1106 | LttvTraceHookByFacility *thf = (LttvTraceHookByFacility *)hook_data; |
| 1107 | LttField *f; |
| 1108 | guint parent_pid; |
| 1109 | guint child_pid; |
| 1110 | LttvProcessState *zombie_process; |
| 1111 | |
| 1112 | /* Parent PID */ |
| 1113 | f = thf->f1; |
| 1114 | parent_pid = ltt_event_get_unsigned(e, f); |
| 1115 | |
| 1116 | /* Child PID */ |
| 1117 | f = thf->f2; |
| 1118 | child_pid = ltt_event_get_unsigned(e, f); |
| 1119 | |
| 1120 | zombie_process = lttv_state_find_process(s, child_pid); |
| 1121 | |
| 1122 | if(unlikely(zombie_process != NULL)) { |
| 1123 | /* Reutilisation of PID. Only now we are sure that the old PID |
| 1124 | * has been released. FIXME : should know when release_task happens instead. |
| 1125 | */ |
| 1126 | exit_process(s, zombie_process); |
| 1127 | } |
| 1128 | g_assert(s->process->pid != child_pid); |
| 1129 | // FIXME : Add this test in the "known state" section |
| 1130 | // g_assert(s->process->pid == parent_pid); |
| 1131 | lttv_state_create_process(s, s->process, child_pid); |
| 1132 | |
| 1133 | return FALSE; |
| 1134 | } |
| 1135 | |
| 1136 | |
| 1137 | static gboolean process_exit(void *hook_data, void *call_data) |
| 1138 | { |
| 1139 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 1140 | LttEvent *e = ltt_tracefile_get_event(s->parent.tf); |
| 1141 | LttvTraceHookByFacility *thf = (LttvTraceHookByFacility *)hook_data; |
| 1142 | LttField *f; |
| 1143 | guint pid; |
| 1144 | |
| 1145 | pid = ltt_event_get_unsigned(e, thf->f1); |
| 1146 | |
| 1147 | // FIXME : Add this test in the "known state" section |
| 1148 | // g_assert(s->process->pid == pid); |
| 1149 | |
| 1150 | if(likely(s->process != NULL)) { |
| 1151 | s->process->state->s = LTTV_STATE_EXIT; |
| 1152 | } |
| 1153 | return FALSE; |
| 1154 | } |
| 1155 | |
| 1156 | static gboolean process_free(void *hook_data, void *call_data) |
| 1157 | { |
| 1158 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 1159 | LttEvent *e = ltt_tracefile_get_event(s->parent.tf); |
| 1160 | LttvTraceHookByFacility *thf = (LttvTraceHookByFacility *)hook_data; |
| 1161 | guint release_pid; |
| 1162 | LttvProcessState *process; |
| 1163 | |
| 1164 | /* PID of the process to release */ |
| 1165 | release_pid = ltt_event_get_unsigned(e, thf->f1); |
| 1166 | |
| 1167 | process = lttv_state_find_process(s, release_pid); |
| 1168 | |
| 1169 | if(likely(process != NULL)) { |
| 1170 | /* release_task is happening at kernel level : we can now safely release |
| 1171 | * the data structure of the process */ |
| 1172 | exit_process(s, process); |
| 1173 | } |
| 1174 | |
| 1175 | return FALSE; |
| 1176 | } |
| 1177 | |
| 1178 | gint lttv_state_hook_add_event_hooks(void *hook_data, void *call_data) |
| 1179 | { |
| 1180 | LttvTracesetState *tss = (LttvTracesetState*)(call_data); |
| 1181 | |
| 1182 | lttv_state_add_event_hooks(tss); |
| 1183 | |
| 1184 | return 0; |
| 1185 | } |
| 1186 | |
| 1187 | void lttv_state_add_event_hooks(LttvTracesetState *self) |
| 1188 | { |
| 1189 | LttvTraceset *traceset = self->parent.ts; |
| 1190 | |
| 1191 | guint i, j, k, l, nb_trace, nb_tracefile; |
| 1192 | |
| 1193 | LttvTraceState *ts; |
| 1194 | |
| 1195 | LttvTracefileState *tfs; |
| 1196 | |
| 1197 | GArray *hooks; |
| 1198 | |
| 1199 | LttvTraceHookByFacility *thf; |
| 1200 | |
| 1201 | LttvTraceHook *hook; |
| 1202 | |
| 1203 | LttvAttributeValue val; |
| 1204 | |
| 1205 | gint ret; |
| 1206 | |
| 1207 | nb_trace = lttv_traceset_number(traceset); |
| 1208 | for(i = 0 ; i < nb_trace ; i++) { |
| 1209 | ts = (LttvTraceState *)self->parent.traces[i]; |
| 1210 | |
| 1211 | /* Find the eventtype id for the following events and register the |
| 1212 | associated by id hooks. */ |
| 1213 | |
| 1214 | hooks = g_array_sized_new(FALSE, FALSE, sizeof(LttvTraceHook), 10); |
| 1215 | g_array_set_size(hooks, 10); |
| 1216 | |
| 1217 | ret = lttv_trace_find_hook(ts->parent.t, |
| 1218 | LTT_FACILITY_KERNEL, LTT_EVENT_SYSCALL_ENTRY, |
| 1219 | LTT_FIELD_SYSCALL_ID, 0, 0, |
| 1220 | syscall_entry, &g_array_index(hooks, LttvTraceHook, 0)); |
| 1221 | g_assert(!ret); |
| 1222 | |
| 1223 | ret = lttv_trace_find_hook(ts->parent.t, |
| 1224 | LTT_FACILITY_KERNEL, LTT_EVENT_SYSCALL_EXIT, |
| 1225 | 0, 0, 0, |
| 1226 | syscall_exit, &g_array_index(hooks, LttvTraceHook, 1)); |
| 1227 | g_assert(!ret); |
| 1228 | |
| 1229 | ret = lttv_trace_find_hook(ts->parent.t, |
| 1230 | LTT_FACILITY_KERNEL, LTT_EVENT_TRAP_ENTRY, |
| 1231 | LTT_FIELD_TRAP_ID, 0, 0, |
| 1232 | trap_entry, &g_array_index(hooks, LttvTraceHook, 2)); |
| 1233 | g_assert(!ret); |
| 1234 | |
| 1235 | ret = lttv_trace_find_hook(ts->parent.t, |
| 1236 | LTT_FACILITY_KERNEL, LTT_EVENT_TRAP_EXIT, |
| 1237 | 0, 0, 0, |
| 1238 | trap_exit, &g_array_index(hooks, LttvTraceHook, 3)); |
| 1239 | g_assert(!ret); |
| 1240 | |
| 1241 | ret = lttv_trace_find_hook(ts->parent.t, |
| 1242 | LTT_FACILITY_KERNEL, LTT_EVENT_IRQ_ENTRY, |
| 1243 | LTT_FIELD_IRQ_ID, 0, 0, |
| 1244 | irq_entry, &g_array_index(hooks, LttvTraceHook, 4)); |
| 1245 | g_assert(!ret); |
| 1246 | |
| 1247 | ret = lttv_trace_find_hook(ts->parent.t, |
| 1248 | LTT_FACILITY_KERNEL, LTT_EVENT_IRQ_EXIT, |
| 1249 | 0, 0, 0, |
| 1250 | irq_exit, &g_array_index(hooks, LttvTraceHook, 5)); |
| 1251 | g_assert(!ret); |
| 1252 | |
| 1253 | ret = lttv_trace_find_hook(ts->parent.t, |
| 1254 | LTT_FACILITY_PROCESS, LTT_EVENT_SCHEDCHANGE, |
| 1255 | LTT_FIELD_OUT, LTT_FIELD_IN, LTT_FIELD_OUT_STATE, |
| 1256 | schedchange, &g_array_index(hooks, LttvTraceHook, 6)); |
| 1257 | g_assert(!ret); |
| 1258 | |
| 1259 | ret = lttv_trace_find_hook(ts->parent.t, |
| 1260 | LTT_FACILITY_PROCESS, LTT_EVENT_FORK, |
| 1261 | LTT_FIELD_PARENT_PID, LTT_FIELD_CHILD_PID, 0, |
| 1262 | process_fork, &g_array_index(hooks, LttvTraceHook, 7)); |
| 1263 | g_assert(!ret); |
| 1264 | |
| 1265 | ret = lttv_trace_find_hook(ts->parent.t, |
| 1266 | LTT_FACILITY_PROCESS, LTT_EVENT_EXIT, |
| 1267 | LTT_FIELD_PID, 0, 0, |
| 1268 | process_exit, &g_array_index(hooks, LttvTraceHook, 8)); |
| 1269 | g_assert(!ret); |
| 1270 | |
| 1271 | ret = lttv_trace_find_hook(ts->parent.t, |
| 1272 | LTT_FACILITY_PROCESS, LTT_EVENT_FREE, |
| 1273 | LTT_FIELD_PID, 0, 0, |
| 1274 | process_free, &g_array_index(hooks, LttvTraceHook, 9)); |
| 1275 | g_assert(!ret); |
| 1276 | |
| 1277 | |
| 1278 | /* Add these hooks to each event_by_id hooks list */ |
| 1279 | |
| 1280 | nb_tracefile = ts->parent.tracefiles->len; |
| 1281 | |
| 1282 | for(j = 0 ; j < nb_tracefile ; j++) { |
| 1283 | tfs = |
| 1284 | LTTV_TRACEFILE_STATE(g_array_index(ts->parent.tracefiles, |
| 1285 | LttvTracefileContext*, j)); |
| 1286 | |
| 1287 | for(k = 0 ; k < hooks->len ; k++) { |
| 1288 | hook = &g_array_index(hooks, LttvTraceHook, k); |
| 1289 | for(l=0;l<hook->fac_list->len;l++) { |
| 1290 | thf = g_array_index(hook->fac_list, LttvTraceHookByFacility*, l); |
| 1291 | lttv_hooks_add( |
| 1292 | lttv_hooks_by_id_find(tfs->parent.event_by_id, thf->id), |
| 1293 | thf->h, |
| 1294 | thf, |
| 1295 | LTTV_PRIO_STATE); |
| 1296 | } |
| 1297 | } |
| 1298 | } |
| 1299 | lttv_attribute_find(self->parent.a, LTTV_STATE_HOOKS, LTTV_POINTER, &val); |
| 1300 | *(val.v_pointer) = hooks; |
| 1301 | } |
| 1302 | } |
| 1303 | |
| 1304 | gint lttv_state_hook_remove_event_hooks(void *hook_data, void *call_data) |
| 1305 | { |
| 1306 | LttvTracesetState *tss = (LttvTracesetState*)(call_data); |
| 1307 | |
| 1308 | lttv_state_remove_event_hooks(tss); |
| 1309 | |
| 1310 | return 0; |
| 1311 | } |
| 1312 | |
| 1313 | void lttv_state_remove_event_hooks(LttvTracesetState *self) |
| 1314 | { |
| 1315 | LttvTraceset *traceset = self->parent.ts; |
| 1316 | |
| 1317 | guint i, j, k, l, nb_trace, nb_tracefile; |
| 1318 | |
| 1319 | LttvTraceState *ts; |
| 1320 | |
| 1321 | LttvTracefileState *tfs; |
| 1322 | |
| 1323 | GArray *hooks; |
| 1324 | |
| 1325 | LttvTraceHook *hook; |
| 1326 | |
| 1327 | LttvTraceHookByFacility *thf; |
| 1328 | |
| 1329 | LttvAttributeValue val; |
| 1330 | |
| 1331 | nb_trace = lttv_traceset_number(traceset); |
| 1332 | for(i = 0 ; i < nb_trace ; i++) { |
| 1333 | ts = LTTV_TRACE_STATE(self->parent.traces[i]); |
| 1334 | lttv_attribute_find(self->parent.a, LTTV_STATE_HOOKS, LTTV_POINTER, &val); |
| 1335 | hooks = *(val.v_pointer); |
| 1336 | |
| 1337 | /* Remove these hooks from each event_by_id hooks list */ |
| 1338 | |
| 1339 | nb_tracefile = ts->parent.tracefiles->len; |
| 1340 | |
| 1341 | for(j = 0 ; j < nb_tracefile ; j++) { |
| 1342 | tfs = |
| 1343 | LTTV_TRACEFILE_STATE(g_array_index(ts->parent.tracefiles, |
| 1344 | LttvTracefileContext*, j)); |
| 1345 | |
| 1346 | for(k = 0 ; k < hooks->len ; k++) { |
| 1347 | hook = &g_array_index(hooks, LttvTraceHook, k); |
| 1348 | for(l=0;l<hook->fac_list->len;l++) { |
| 1349 | thf = g_array_index(hook->fac_list, LttvTraceHookByFacility*, l); |
| 1350 | |
| 1351 | lttv_hooks_remove_data( |
| 1352 | lttv_hooks_by_id_find(tfs->parent.event_by_id, thf->id), |
| 1353 | thf->h, |
| 1354 | thf); |
| 1355 | } |
| 1356 | } |
| 1357 | } |
| 1358 | for(k = 0 ; k < hooks->len ; k++) |
| 1359 | lttv_trace_hook_destroy(&g_array_index(hooks, LttvTraceHook, k)); |
| 1360 | g_array_free(hooks, TRUE); |
| 1361 | } |
| 1362 | } |
| 1363 | |
| 1364 | |
| 1365 | static gboolean state_save_event_hook(void *hook_data, void *call_data) |
| 1366 | { |
| 1367 | guint *event_count = (guint*)hook_data; |
| 1368 | |
| 1369 | /* Only save at LTTV_STATE_SAVE_INTERVAL */ |
| 1370 | if(likely((*event_count)++ < LTTV_STATE_SAVE_INTERVAL)) |
| 1371 | return FALSE; |
| 1372 | else |
| 1373 | event_count = 0; |
| 1374 | |
| 1375 | LttvTracefileState *self = (LttvTracefileState *)call_data; |
| 1376 | |
| 1377 | LttvTracefileState *tfcs; |
| 1378 | |
| 1379 | LttvTraceState *tcs = (LttvTraceState *)(self->parent.t_context); |
| 1380 | |
| 1381 | LttEventPosition *ep; |
| 1382 | |
| 1383 | guint i; |
| 1384 | |
| 1385 | LttTracefile *tf; |
| 1386 | |
| 1387 | LttvAttribute *saved_states_tree, *saved_state_tree; |
| 1388 | |
| 1389 | LttvAttributeValue value; |
| 1390 | |
| 1391 | saved_states_tree = lttv_attribute_find_subdir(tcs->parent.t_a, |
| 1392 | LTTV_STATE_SAVED_STATES); |
| 1393 | saved_state_tree = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL); |
| 1394 | value = lttv_attribute_add(saved_states_tree, |
| 1395 | lttv_attribute_get_number(saved_states_tree), LTTV_GOBJECT); |
| 1396 | *(value.v_gobject) = (GObject *)saved_state_tree; |
| 1397 | value = lttv_attribute_add(saved_state_tree, LTTV_STATE_TIME, LTTV_TIME); |
| 1398 | *(value.v_time) = self->parent.timestamp; |
| 1399 | lttv_state_save(tcs, saved_state_tree); |
| 1400 | g_debug("Saving state at time %lu.%lu", self->parent.timestamp.tv_sec, |
| 1401 | self->parent.timestamp.tv_nsec); |
| 1402 | |
| 1403 | *(tcs->max_time_state_recomputed_in_seek) = self->parent.timestamp; |
| 1404 | |
| 1405 | return FALSE; |
| 1406 | } |
| 1407 | |
| 1408 | #if 0 |
| 1409 | static gboolean block_start(void *hook_data, void *call_data) |
| 1410 | { |
| 1411 | LttvTracefileState *self = (LttvTracefileState *)call_data; |
| 1412 | |
| 1413 | LttvTracefileState *tfcs; |
| 1414 | |
| 1415 | LttvTraceState *tcs = (LttvTraceState *)(self->parent.t_context); |
| 1416 | |
| 1417 | LttEventPosition *ep; |
| 1418 | |
| 1419 | guint i, nb_block, nb_event, nb_tracefile; |
| 1420 | |
| 1421 | LttTracefile *tf; |
| 1422 | |
| 1423 | LttvAttribute *saved_states_tree, *saved_state_tree; |
| 1424 | |
| 1425 | LttvAttributeValue value; |
| 1426 | |
| 1427 | ep = ltt_event_position_new(); |
| 1428 | |
| 1429 | nb_tracefile = tcs->parent.tracefiles->len; |
| 1430 | |
| 1431 | /* Count the number of events added since the last block end in any |
| 1432 | tracefile. */ |
| 1433 | |
| 1434 | for(i = 0 ; i < nb_tracefile ; i++) { |
| 1435 | tfcs = |
| 1436 | LTTV_TRACEFILE_STATE(&g_array_index(tcs->parent.tracefiles, |
| 1437 | LttvTracefileContext, i)); |
| 1438 | ltt_event_position(tfcs->parent.e, ep); |
| 1439 | ltt_event_position_get(ep, &nb_block, &nb_event, &tf); |
| 1440 | tcs->nb_event += nb_event - tfcs->saved_position; |
| 1441 | tfcs->saved_position = nb_event; |
| 1442 | } |
| 1443 | g_free(ep); |
| 1444 | |
| 1445 | if(tcs->nb_event >= tcs->save_interval) { |
| 1446 | saved_states_tree = lttv_attribute_find_subdir(tcs->parent.t_a, |
| 1447 | LTTV_STATE_SAVED_STATES); |
| 1448 | saved_state_tree = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL); |
| 1449 | value = lttv_attribute_add(saved_states_tree, |
| 1450 | lttv_attribute_get_number(saved_states_tree), LTTV_GOBJECT); |
| 1451 | *(value.v_gobject) = (GObject *)saved_state_tree; |
| 1452 | value = lttv_attribute_add(saved_state_tree, LTTV_STATE_TIME, LTTV_TIME); |
| 1453 | *(value.v_time) = self->parent.timestamp; |
| 1454 | lttv_state_save(tcs, saved_state_tree); |
| 1455 | tcs->nb_event = 0; |
| 1456 | g_debug("Saving state at time %lu.%lu", self->parent.timestamp.tv_sec, |
| 1457 | self->parent.timestamp.tv_nsec); |
| 1458 | } |
| 1459 | *(tcs->max_time_state_recomputed_in_seek) = self->parent.timestamp; |
| 1460 | return FALSE; |
| 1461 | } |
| 1462 | #endif //0 |
| 1463 | |
| 1464 | #if 0 |
| 1465 | static gboolean block_end(void *hook_data, void *call_data) |
| 1466 | { |
| 1467 | LttvTracefileState *self = (LttvTracefileState *)call_data; |
| 1468 | |
| 1469 | LttvTraceState *tcs = (LttvTraceState *)(self->parent.t_context); |
| 1470 | |
| 1471 | LttTracefile *tf; |
| 1472 | |
| 1473 | LttEventPosition *ep; |
| 1474 | |
| 1475 | guint nb_block, nb_event; |
| 1476 | |
| 1477 | ep = ltt_event_position_new(); |
| 1478 | ltt_event_position(self->parent.e, ep); |
| 1479 | ltt_event_position_get(ep, &nb_block, &nb_event, &tf); |
| 1480 | tcs->nb_event += nb_event - self->saved_position + 1; |
| 1481 | self->saved_position = 0; |
| 1482 | *(tcs->max_time_state_recomputed_in_seek) = self->parent.timestamp; |
| 1483 | g_free(ep); |
| 1484 | |
| 1485 | return FALSE; |
| 1486 | } |
| 1487 | #endif //0 |
| 1488 | #if 0 |
| 1489 | void lttv_state_save_add_event_hooks(LttvTracesetState *self) |
| 1490 | { |
| 1491 | LttvTraceset *traceset = self->parent.ts; |
| 1492 | |
| 1493 | guint i, j, nb_trace, nb_tracefile; |
| 1494 | |
| 1495 | LttvTraceState *ts; |
| 1496 | |
| 1497 | LttvTracefileState *tfs; |
| 1498 | |
| 1499 | LttvTraceHook hook_start, hook_end; |
| 1500 | |
| 1501 | nb_trace = lttv_traceset_number(traceset); |
| 1502 | for(i = 0 ; i < nb_trace ; i++) { |
| 1503 | ts = (LttvTraceState *)self->parent.traces[i]; |
| 1504 | |
| 1505 | lttv_trace_find_hook(ts->parent.t, "core","block_start",NULL, |
| 1506 | NULL, NULL, block_start, &hook_start); |
| 1507 | lttv_trace_find_hook(ts->parent.t, "core","block_end",NULL, |
| 1508 | NULL, NULL, block_end, &hook_end); |
| 1509 | |
| 1510 | nb_tracefile = ts->parent.tracefiles->len; |
| 1511 | |
| 1512 | for(j = 0 ; j < nb_tracefile ; j++) { |
| 1513 | tfs = |
| 1514 | LTTV_TRACEFILE_STATE(&g_array_index(ts->parent.tracefiles, |
| 1515 | LttvTracefileContext, j)); |
| 1516 | lttv_hooks_add(lttv_hooks_by_id_find(tfs->parent.event_by_id, |
| 1517 | hook_start.id), hook_start.h, NULL, LTTV_PRIO_STATE); |
| 1518 | lttv_hooks_add(lttv_hooks_by_id_find(tfs->parent.event_by_id, |
| 1519 | hook_end.id), hook_end.h, NULL, LTTV_PRIO_STATE); |
| 1520 | } |
| 1521 | } |
| 1522 | } |
| 1523 | #endif //0 |
| 1524 | |
| 1525 | void lttv_state_save_add_event_hooks(LttvTracesetState *self) |
| 1526 | { |
| 1527 | LttvTraceset *traceset = self->parent.ts; |
| 1528 | |
| 1529 | guint i, j, nb_trace, nb_tracefile; |
| 1530 | |
| 1531 | LttvTraceState *ts; |
| 1532 | |
| 1533 | LttvTracefileState *tfs; |
| 1534 | |
| 1535 | |
| 1536 | nb_trace = lttv_traceset_number(traceset); |
| 1537 | for(i = 0 ; i < nb_trace ; i++) { |
| 1538 | |
| 1539 | ts = (LttvTraceState *)self->parent.traces[i]; |
| 1540 | nb_tracefile = ts->parent.tracefiles->len; |
| 1541 | |
| 1542 | guint *event_count = g_new(guint, 1); |
| 1543 | *event_count = 0; |
| 1544 | |
| 1545 | for(j = 0 ; j < nb_tracefile ; j++) { |
| 1546 | tfs = |
| 1547 | LTTV_TRACEFILE_STATE(g_array_index(ts->parent.tracefiles, |
| 1548 | LttvTracefileContext*, j)); |
| 1549 | lttv_hooks_add(tfs->parent.event, |
| 1550 | state_save_event_hook, |
| 1551 | event_count, |
| 1552 | LTTV_PRIO_STATE); |
| 1553 | |
| 1554 | } |
| 1555 | } |
| 1556 | } |
| 1557 | |
| 1558 | gint lttv_state_save_hook_add_event_hooks(void *hook_data, void *call_data) |
| 1559 | { |
| 1560 | LttvTracesetState *tss = (LttvTracesetState*)(call_data); |
| 1561 | |
| 1562 | lttv_state_save_add_event_hooks(tss); |
| 1563 | |
| 1564 | return 0; |
| 1565 | } |
| 1566 | |
| 1567 | |
| 1568 | #if 0 |
| 1569 | void lttv_state_save_remove_event_hooks(LttvTracesetState *self) |
| 1570 | { |
| 1571 | LttvTraceset *traceset = self->parent.ts; |
| 1572 | |
| 1573 | guint i, j, nb_trace, nb_tracefile; |
| 1574 | |
| 1575 | LttvTraceState *ts; |
| 1576 | |
| 1577 | LttvTracefileState *tfs; |
| 1578 | |
| 1579 | LttvTraceHook hook_start, hook_end; |
| 1580 | |
| 1581 | nb_trace = lttv_traceset_number(traceset); |
| 1582 | for(i = 0 ; i < nb_trace ; i++) { |
| 1583 | ts = LTTV_TRACE_STATE(self->parent.traces[i]); |
| 1584 | |
| 1585 | lttv_trace_find_hook(ts->parent.t, "core","block_start",NULL, |
| 1586 | NULL, NULL, block_start, &hook_start); |
| 1587 | |
| 1588 | lttv_trace_find_hook(ts->parent.t, "core","block_end",NULL, |
| 1589 | NULL, NULL, block_end, &hook_end); |
| 1590 | |
| 1591 | nb_tracefile = ts->parent.tracefiles->len; |
| 1592 | |
| 1593 | for(j = 0 ; j < nb_tracefile ; j++) { |
| 1594 | tfs = |
| 1595 | LTTV_TRACEFILE_STATE(&g_array_index(ts->parent.tracefiles, |
| 1596 | LttvTracefileContext, j)); |
| 1597 | lttv_hooks_remove_data(lttv_hooks_by_id_find( |
| 1598 | tfs->parent.event_by_id, hook_start.id), hook_start.h, NULL); |
| 1599 | lttv_hooks_remove_data(lttv_hooks_by_id_find( |
| 1600 | tfs->parent.event_by_id, hook_end.id), hook_end.h, NULL); |
| 1601 | } |
| 1602 | } |
| 1603 | } |
| 1604 | #endif //0 |
| 1605 | |
| 1606 | void lttv_state_save_remove_event_hooks(LttvTracesetState *self) |
| 1607 | { |
| 1608 | LttvTraceset *traceset = self->parent.ts; |
| 1609 | |
| 1610 | guint i, j, nb_trace, nb_tracefile; |
| 1611 | |
| 1612 | LttvTraceState *ts; |
| 1613 | |
| 1614 | LttvTracefileState *tfs; |
| 1615 | |
| 1616 | |
| 1617 | nb_trace = lttv_traceset_number(traceset); |
| 1618 | for(i = 0 ; i < nb_trace ; i++) { |
| 1619 | |
| 1620 | ts = (LttvTraceState *)self->parent.traces[i]; |
| 1621 | nb_tracefile = ts->parent.tracefiles->len; |
| 1622 | |
| 1623 | guint *event_count; |
| 1624 | |
| 1625 | for(j = 0 ; j < nb_tracefile ; j++) { |
| 1626 | tfs = |
| 1627 | LTTV_TRACEFILE_STATE(g_array_index(ts->parent.tracefiles, |
| 1628 | LttvTracefileContext*, j)); |
| 1629 | event_count = lttv_hooks_remove(tfs->parent.event, |
| 1630 | state_save_event_hook); |
| 1631 | g_free(event_count); |
| 1632 | |
| 1633 | } |
| 1634 | } |
| 1635 | } |
| 1636 | |
| 1637 | gint lttv_state_save_hook_remove_event_hooks(void *hook_data, void *call_data) |
| 1638 | { |
| 1639 | LttvTracesetState *tss = (LttvTracesetState*)(call_data); |
| 1640 | |
| 1641 | lttv_state_save_remove_event_hooks(tss); |
| 1642 | |
| 1643 | return 0; |
| 1644 | } |
| 1645 | |
| 1646 | void lttv_state_traceset_seek_time_closest(LttvTracesetState *self, LttTime t) |
| 1647 | { |
| 1648 | LttvTraceset *traceset = self->parent.ts; |
| 1649 | |
| 1650 | guint i, nb_trace; |
| 1651 | |
| 1652 | int min_pos, mid_pos, max_pos; |
| 1653 | |
| 1654 | LttvTraceState *tcs; |
| 1655 | |
| 1656 | LttvAttributeValue value; |
| 1657 | |
| 1658 | LttvAttributeType type; |
| 1659 | |
| 1660 | LttvAttributeName name; |
| 1661 | |
| 1662 | LttvAttribute *saved_states_tree, *saved_state_tree, *closest_tree; |
| 1663 | |
| 1664 | nb_trace = lttv_traceset_number(traceset); |
| 1665 | for(i = 0 ; i < nb_trace ; i++) { |
| 1666 | tcs = (LttvTraceState *)self->parent.traces[i]; |
| 1667 | |
| 1668 | if(ltt_time_compare(t, *(tcs->max_time_state_recomputed_in_seek)) < 0) { |
| 1669 | saved_states_tree = lttv_attribute_find_subdir(tcs->parent.t_a, |
| 1670 | LTTV_STATE_SAVED_STATES); |
| 1671 | min_pos = -1; |
| 1672 | |
| 1673 | if(saved_states_tree) { |
| 1674 | max_pos = lttv_attribute_get_number(saved_states_tree) - 1; |
| 1675 | mid_pos = max_pos / 2; |
| 1676 | while(min_pos < max_pos) { |
| 1677 | type = lttv_attribute_get(saved_states_tree, mid_pos, &name, &value); |
| 1678 | g_assert(type == LTTV_GOBJECT); |
| 1679 | saved_state_tree = *((LttvAttribute **)(value.v_gobject)); |
| 1680 | type = lttv_attribute_get_by_name(saved_state_tree, LTTV_STATE_TIME, |
| 1681 | &value); |
| 1682 | g_assert(type == LTTV_TIME); |
| 1683 | if(ltt_time_compare(*(value.v_time), t) < 0) { |
| 1684 | min_pos = mid_pos; |
| 1685 | closest_tree = saved_state_tree; |
| 1686 | } |
| 1687 | else max_pos = mid_pos - 1; |
| 1688 | |
| 1689 | mid_pos = (min_pos + max_pos + 1) / 2; |
| 1690 | } |
| 1691 | } |
| 1692 | |
| 1693 | /* restore the closest earlier saved state */ |
| 1694 | if(min_pos != -1) { |
| 1695 | lttv_state_restore(tcs, closest_tree); |
| 1696 | } |
| 1697 | |
| 1698 | /* There is no saved state, yet we want to have it. Restart at T0 */ |
| 1699 | else { |
| 1700 | restore_init_state(tcs); |
| 1701 | lttv_process_trace_seek_time(&(tcs->parent), ltt_time_zero); |
| 1702 | } |
| 1703 | } |
| 1704 | /* We want to seek quickly without restoring/updating the state */ |
| 1705 | else { |
| 1706 | restore_init_state(tcs); |
| 1707 | lttv_process_trace_seek_time(&(tcs->parent), t); |
| 1708 | } |
| 1709 | } |
| 1710 | } |
| 1711 | |
| 1712 | |
| 1713 | static void |
| 1714 | traceset_state_instance_init (GTypeInstance *instance, gpointer g_class) |
| 1715 | { |
| 1716 | } |
| 1717 | |
| 1718 | |
| 1719 | static void |
| 1720 | traceset_state_finalize (LttvTracesetState *self) |
| 1721 | { |
| 1722 | G_OBJECT_CLASS(g_type_class_peek(LTTV_TRACESET_CONTEXT_TYPE))-> |
| 1723 | finalize(G_OBJECT(self)); |
| 1724 | } |
| 1725 | |
| 1726 | |
| 1727 | static void |
| 1728 | traceset_state_class_init (LttvTracesetContextClass *klass) |
| 1729 | { |
| 1730 | GObjectClass *gobject_class = G_OBJECT_CLASS(klass); |
| 1731 | |
| 1732 | gobject_class->finalize = (void (*)(GObject *self)) traceset_state_finalize; |
| 1733 | klass->init = (void (*)(LttvTracesetContext *self, LttvTraceset *ts))init; |
| 1734 | klass->fini = (void (*)(LttvTracesetContext *self))fini; |
| 1735 | klass->new_traceset_context = new_traceset_context; |
| 1736 | klass->new_trace_context = new_trace_context; |
| 1737 | klass->new_tracefile_context = new_tracefile_context; |
| 1738 | } |
| 1739 | |
| 1740 | |
| 1741 | GType |
| 1742 | lttv_traceset_state_get_type(void) |
| 1743 | { |
| 1744 | static GType type = 0; |
| 1745 | if (type == 0) { |
| 1746 | static const GTypeInfo info = { |
| 1747 | sizeof (LttvTracesetStateClass), |
| 1748 | NULL, /* base_init */ |
| 1749 | NULL, /* base_finalize */ |
| 1750 | (GClassInitFunc) traceset_state_class_init, /* class_init */ |
| 1751 | NULL, /* class_finalize */ |
| 1752 | NULL, /* class_data */ |
| 1753 | sizeof (LttvTracesetState), |
| 1754 | 0, /* n_preallocs */ |
| 1755 | (GInstanceInitFunc) traceset_state_instance_init, /* instance_init */ |
| 1756 | NULL /* value handling */ |
| 1757 | }; |
| 1758 | |
| 1759 | type = g_type_register_static (LTTV_TRACESET_CONTEXT_TYPE, "LttvTracesetStateType", |
| 1760 | &info, 0); |
| 1761 | } |
| 1762 | return type; |
| 1763 | } |
| 1764 | |
| 1765 | |
| 1766 | static void |
| 1767 | trace_state_instance_init (GTypeInstance *instance, gpointer g_class) |
| 1768 | { |
| 1769 | } |
| 1770 | |
| 1771 | |
| 1772 | static void |
| 1773 | trace_state_finalize (LttvTraceState *self) |
| 1774 | { |
| 1775 | G_OBJECT_CLASS(g_type_class_peek(LTTV_TRACE_CONTEXT_TYPE))-> |
| 1776 | finalize(G_OBJECT(self)); |
| 1777 | } |
| 1778 | |
| 1779 | |
| 1780 | static void |
| 1781 | trace_state_class_init (LttvTraceStateClass *klass) |
| 1782 | { |
| 1783 | GObjectClass *gobject_class = G_OBJECT_CLASS(klass); |
| 1784 | |
| 1785 | gobject_class->finalize = (void (*)(GObject *self)) trace_state_finalize; |
| 1786 | klass->state_save = state_save; |
| 1787 | klass->state_restore = state_restore; |
| 1788 | klass->state_saved_free = state_saved_free; |
| 1789 | } |
| 1790 | |
| 1791 | |
| 1792 | GType |
| 1793 | lttv_trace_state_get_type(void) |
| 1794 | { |
| 1795 | static GType type = 0; |
| 1796 | if (type == 0) { |
| 1797 | static const GTypeInfo info = { |
| 1798 | sizeof (LttvTraceStateClass), |
| 1799 | NULL, /* base_init */ |
| 1800 | NULL, /* base_finalize */ |
| 1801 | (GClassInitFunc) trace_state_class_init, /* class_init */ |
| 1802 | NULL, /* class_finalize */ |
| 1803 | NULL, /* class_data */ |
| 1804 | sizeof (LttvTraceState), |
| 1805 | 0, /* n_preallocs */ |
| 1806 | (GInstanceInitFunc) trace_state_instance_init, /* instance_init */ |
| 1807 | NULL /* value handling */ |
| 1808 | }; |
| 1809 | |
| 1810 | type = g_type_register_static (LTTV_TRACE_CONTEXT_TYPE, |
| 1811 | "LttvTraceStateType", &info, 0); |
| 1812 | } |
| 1813 | return type; |
| 1814 | } |
| 1815 | |
| 1816 | |
| 1817 | static void |
| 1818 | tracefile_state_instance_init (GTypeInstance *instance, gpointer g_class) |
| 1819 | { |
| 1820 | } |
| 1821 | |
| 1822 | |
| 1823 | static void |
| 1824 | tracefile_state_finalize (LttvTracefileState *self) |
| 1825 | { |
| 1826 | G_OBJECT_CLASS(g_type_class_peek(LTTV_TRACEFILE_CONTEXT_TYPE))-> |
| 1827 | finalize(G_OBJECT(self)); |
| 1828 | } |
| 1829 | |
| 1830 | |
| 1831 | static void |
| 1832 | tracefile_state_class_init (LttvTracefileStateClass *klass) |
| 1833 | { |
| 1834 | GObjectClass *gobject_class = G_OBJECT_CLASS(klass); |
| 1835 | |
| 1836 | gobject_class->finalize = (void (*)(GObject *self)) tracefile_state_finalize; |
| 1837 | } |
| 1838 | |
| 1839 | |
| 1840 | GType |
| 1841 | lttv_tracefile_state_get_type(void) |
| 1842 | { |
| 1843 | static GType type = 0; |
| 1844 | if (type == 0) { |
| 1845 | static const GTypeInfo info = { |
| 1846 | sizeof (LttvTracefileStateClass), |
| 1847 | NULL, /* base_init */ |
| 1848 | NULL, /* base_finalize */ |
| 1849 | (GClassInitFunc) tracefile_state_class_init, /* class_init */ |
| 1850 | NULL, /* class_finalize */ |
| 1851 | NULL, /* class_data */ |
| 1852 | sizeof (LttvTracefileState), |
| 1853 | 0, /* n_preallocs */ |
| 1854 | (GInstanceInitFunc) tracefile_state_instance_init, /* instance_init */ |
| 1855 | NULL /* value handling */ |
| 1856 | }; |
| 1857 | |
| 1858 | type = g_type_register_static (LTTV_TRACEFILE_CONTEXT_TYPE, |
| 1859 | "LttvTracefileStateType", &info, 0); |
| 1860 | } |
| 1861 | return type; |
| 1862 | } |
| 1863 | |
| 1864 | |
| 1865 | static void module_init() |
| 1866 | { |
| 1867 | LTTV_STATE_UNNAMED = g_quark_from_string("unnamed"); |
| 1868 | LTTV_STATE_MODE_UNKNOWN = g_quark_from_string("unknown execution mode"); |
| 1869 | LTTV_STATE_USER_MODE = g_quark_from_string("user mode"); |
| 1870 | LTTV_STATE_WAIT_FORK = g_quark_from_string("wait fork"); |
| 1871 | LTTV_STATE_SYSCALL = g_quark_from_string("system call"); |
| 1872 | LTTV_STATE_TRAP = g_quark_from_string("trap"); |
| 1873 | LTTV_STATE_IRQ = g_quark_from_string("irq"); |
| 1874 | LTTV_STATE_SUBMODE_UNKNOWN = g_quark_from_string("unknown submode"); |
| 1875 | LTTV_STATE_SUBMODE_NONE = g_quark_from_string("(no submode)"); |
| 1876 | LTTV_STATE_WAIT_CPU = g_quark_from_string("wait for cpu"); |
| 1877 | LTTV_STATE_EXIT = g_quark_from_string("exiting"); |
| 1878 | LTTV_STATE_ZOMBIE = g_quark_from_string("zombie"); |
| 1879 | LTTV_STATE_WAIT = g_quark_from_string("wait for I/O"); |
| 1880 | LTTV_STATE_RUN = g_quark_from_string("running"); |
| 1881 | LTTV_STATE_TRACEFILES = g_quark_from_string("tracefiles"); |
| 1882 | LTTV_STATE_PROCESSES = g_quark_from_string("processes"); |
| 1883 | LTTV_STATE_PROCESS = g_quark_from_string("process"); |
| 1884 | LTTV_STATE_EVENT = g_quark_from_string("event"); |
| 1885 | LTTV_STATE_SAVED_STATES = g_quark_from_string("saved states"); |
| 1886 | LTTV_STATE_SAVED_STATES_TIME = g_quark_from_string("saved states time"); |
| 1887 | LTTV_STATE_TIME = g_quark_from_string("time"); |
| 1888 | LTTV_STATE_HOOKS = g_quark_from_string("saved state hooks"); |
| 1889 | LTTV_STATE_NAME_TABLES = g_quark_from_string("name tables"); |
| 1890 | LTTV_STATE_TRACE_STATE_USE_COUNT = |
| 1891 | g_quark_from_string("trace_state_use_count"); |
| 1892 | |
| 1893 | |
| 1894 | LTT_FACILITY_KERNEL = g_quark_from_string("kernel"); |
| 1895 | LTT_FACILITY_PROCESS = g_quark_from_string("process"); |
| 1896 | |
| 1897 | |
| 1898 | LTT_EVENT_SYSCALL_ENTRY = g_quark_from_string("syscall_entry"); |
| 1899 | LTT_EVENT_SYSCALL_EXIT = g_quark_from_string("syscall_exit"); |
| 1900 | LTT_EVENT_TRAP_ENTRY = g_quark_from_string("trap_entry"); |
| 1901 | LTT_EVENT_TRAP_EXIT = g_quark_from_string("trap_exit"); |
| 1902 | LTT_EVENT_IRQ_ENTRY = g_quark_from_string("irq_entry"); |
| 1903 | LTT_EVENT_IRQ_EXIT = g_quark_from_string("irq_exit"); |
| 1904 | LTT_EVENT_SCHEDCHANGE = g_quark_from_string("schedchange"); |
| 1905 | LTT_EVENT_FORK = g_quark_from_string("fork"); |
| 1906 | LTT_EVENT_EXIT = g_quark_from_string("exit"); |
| 1907 | LTT_EVENT_FREE = g_quark_from_string("free"); |
| 1908 | |
| 1909 | |
| 1910 | LTT_FIELD_SYSCALL_ID = g_quark_from_string("syscall_id"); |
| 1911 | LTT_FIELD_TRAP_ID = g_quark_from_string("trap_id"); |
| 1912 | LTT_FIELD_IRQ_ID = g_quark_from_string("irq_id"); |
| 1913 | LTT_FIELD_OUT = g_quark_from_string("out"); |
| 1914 | LTT_FIELD_IN = g_quark_from_string("in"); |
| 1915 | LTT_FIELD_OUT_STATE = g_quark_from_string("out_state"); |
| 1916 | LTT_FIELD_PARENT_PID = g_quark_from_string("parent_pid"); |
| 1917 | LTT_FIELD_CHILD_PID = g_quark_from_string("child_pid"); |
| 1918 | LTT_FIELD_PID = g_quark_from_string("pid"); |
| 1919 | |
| 1920 | } |
| 1921 | |
| 1922 | static void module_destroy() |
| 1923 | { |
| 1924 | } |
| 1925 | |
| 1926 | |
| 1927 | LTTV_MODULE("state", "State computation", \ |
| 1928 | "Update the system state, possibly saving it at intervals", \ |
| 1929 | module_init, module_destroy) |
| 1930 | |
| 1931 | |
| 1932 | |