| 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 | #define _GNU_SOURCE |
| 20 | #ifdef HAVE_CONFIG_H |
| 21 | #include <config.h> |
| 22 | #endif |
| 23 | |
| 24 | #include <glib.h> |
| 25 | #include <lttv/lttv.h> |
| 26 | #include <lttv/module.h> |
| 27 | #include <lttv/state.h> |
| 28 | #include <ltt/trace.h> |
| 29 | #include <ltt/event.h> |
| 30 | #include <ltt/ltt.h> |
| 31 | #include <ltt/marker-desc.h> |
| 32 | #include <stdio.h> |
| 33 | #include <string.h> |
| 34 | |
| 35 | /* Comment : |
| 36 | * Mathieu Desnoyers |
| 37 | * usertrace is there only to be able to update the current CPU of the |
| 38 | * usertraces when there is a schedchange. it is a way to link the ProcessState |
| 39 | * to the associated usertrace. Link only created upon thread creation. |
| 40 | * |
| 41 | * The cpu id is necessary : it gives us back the current ProcessState when we |
| 42 | * are considering data from the usertrace. |
| 43 | */ |
| 44 | |
| 45 | #define PREALLOCATED_EXECUTION_STACK 10 |
| 46 | |
| 47 | /* Facilities Quarks */ |
| 48 | |
| 49 | GQuark |
| 50 | LTT_FACILITY_KERNEL, |
| 51 | LTT_FACILITY_KERNEL_ARCH, |
| 52 | LTT_FACILITY_LIST, |
| 53 | LTT_FACILITY_FS, |
| 54 | LTT_FACILITY_USER_GENERIC, |
| 55 | LTT_FACILITY_BLOCK; |
| 56 | |
| 57 | /* Events Quarks */ |
| 58 | |
| 59 | GQuark |
| 60 | LTT_EVENT_SYSCALL_ENTRY, |
| 61 | LTT_EVENT_SYSCALL_EXIT, |
| 62 | LTT_EVENT_TRAP_ENTRY, |
| 63 | LTT_EVENT_TRAP_EXIT, |
| 64 | LTT_EVENT_IRQ_ENTRY, |
| 65 | LTT_EVENT_IRQ_EXIT, |
| 66 | LTT_EVENT_SOFT_IRQ_ENTRY, |
| 67 | LTT_EVENT_SOFT_IRQ_EXIT, |
| 68 | LTT_EVENT_SCHED_SCHEDULE, |
| 69 | LTT_EVENT_PROCESS_FORK, |
| 70 | LTT_EVENT_KTHREAD_CREATE, |
| 71 | LTT_EVENT_PROCESS_EXIT, |
| 72 | LTT_EVENT_PROCESS_FREE, |
| 73 | LTT_EVENT_EXEC, |
| 74 | LTT_EVENT_PROCESS_STATE, |
| 75 | LTT_EVENT_STATEDUMP_END, |
| 76 | LTT_EVENT_FUNCTION_ENTRY, |
| 77 | LTT_EVENT_FUNCTION_EXIT, |
| 78 | LTT_EVENT_THREAD_BRAND, |
| 79 | LTT_EVENT_REQUEST_ISSUE, |
| 80 | LTT_EVENT_REQUEST_COMPLETE, |
| 81 | LTT_EVENT_LIST_INTERRUPT; |
| 82 | |
| 83 | /* Fields Quarks */ |
| 84 | |
| 85 | GQuark |
| 86 | LTT_FIELD_SYSCALL_ID, |
| 87 | LTT_FIELD_TRAP_ID, |
| 88 | LTT_FIELD_IRQ_ID, |
| 89 | LTT_FIELD_SOFT_IRQ_ID, |
| 90 | LTT_FIELD_PREV_PID, |
| 91 | LTT_FIELD_NEXT_PID, |
| 92 | LTT_FIELD_PREV_STATE, |
| 93 | LTT_FIELD_PARENT_PID, |
| 94 | LTT_FIELD_CHILD_PID, |
| 95 | LTT_FIELD_PID, |
| 96 | LTT_FIELD_TGID, |
| 97 | LTT_FIELD_CHILD_TGID, |
| 98 | LTT_FIELD_FILENAME, |
| 99 | LTT_FIELD_NAME, |
| 100 | LTT_FIELD_TYPE, |
| 101 | LTT_FIELD_MODE, |
| 102 | LTT_FIELD_SUBMODE, |
| 103 | LTT_FIELD_STATUS, |
| 104 | LTT_FIELD_THIS_FN, |
| 105 | LTT_FIELD_CALL_SITE, |
| 106 | LTT_FIELD_MINOR, |
| 107 | LTT_FIELD_MAJOR, |
| 108 | LTT_FIELD_OPERATION, |
| 109 | LTT_FIELD_ACTION; |
| 110 | |
| 111 | LttvExecutionMode |
| 112 | LTTV_STATE_MODE_UNKNOWN, |
| 113 | LTTV_STATE_USER_MODE, |
| 114 | LTTV_STATE_SYSCALL, |
| 115 | LTTV_STATE_TRAP, |
| 116 | LTTV_STATE_IRQ, |
| 117 | LTTV_STATE_SOFT_IRQ; |
| 118 | |
| 119 | LttvExecutionSubmode |
| 120 | LTTV_STATE_SUBMODE_UNKNOWN, |
| 121 | LTTV_STATE_SUBMODE_NONE; |
| 122 | |
| 123 | LttvProcessStatus |
| 124 | LTTV_STATE_UNNAMED, |
| 125 | LTTV_STATE_WAIT_FORK, |
| 126 | LTTV_STATE_WAIT_CPU, |
| 127 | LTTV_STATE_EXIT, |
| 128 | LTTV_STATE_ZOMBIE, |
| 129 | LTTV_STATE_WAIT, |
| 130 | LTTV_STATE_RUN, |
| 131 | LTTV_STATE_DEAD; |
| 132 | |
| 133 | GQuark |
| 134 | LTTV_STATE_UNBRANDED; |
| 135 | |
| 136 | LttvProcessType |
| 137 | LTTV_STATE_USER_THREAD, |
| 138 | LTTV_STATE_KERNEL_THREAD; |
| 139 | |
| 140 | LttvCPUMode |
| 141 | LTTV_CPU_UNKNOWN, |
| 142 | LTTV_CPU_IDLE, |
| 143 | LTTV_CPU_BUSY, |
| 144 | LTTV_CPU_IRQ, |
| 145 | LTTV_CPU_SOFT_IRQ, |
| 146 | LTTV_CPU_TRAP; |
| 147 | |
| 148 | LttvIRQMode |
| 149 | LTTV_IRQ_UNKNOWN, |
| 150 | LTTV_IRQ_IDLE, |
| 151 | LTTV_IRQ_BUSY; |
| 152 | |
| 153 | LttvBdevMode |
| 154 | LTTV_BDEV_UNKNOWN, |
| 155 | LTTV_BDEV_IDLE, |
| 156 | LTTV_BDEV_BUSY_READING, |
| 157 | LTTV_BDEV_BUSY_WRITING; |
| 158 | |
| 159 | static GQuark |
| 160 | LTTV_STATE_TRACEFILES, |
| 161 | LTTV_STATE_PROCESSES, |
| 162 | LTTV_STATE_PROCESS, |
| 163 | LTTV_STATE_RUNNING_PROCESS, |
| 164 | LTTV_STATE_EVENT, |
| 165 | LTTV_STATE_SAVED_STATES, |
| 166 | LTTV_STATE_SAVED_STATES_TIME, |
| 167 | LTTV_STATE_TIME, |
| 168 | LTTV_STATE_HOOKS, |
| 169 | LTTV_STATE_NAME_TABLES, |
| 170 | LTTV_STATE_TRACE_STATE_USE_COUNT, |
| 171 | LTTV_STATE_RESOURCE_CPUS, |
| 172 | LTTV_STATE_RESOURCE_CPUS_COUNT, |
| 173 | LTTV_STATE_RESOURCE_IRQS, |
| 174 | LTTV_STATE_RESOURCE_SOFT_IRQS, |
| 175 | LTTV_STATE_RESOURCE_TRAPS, |
| 176 | LTTV_STATE_RESOURCE_BLKDEVS; |
| 177 | |
| 178 | static void create_max_time(LttvTraceState *tcs); |
| 179 | |
| 180 | static void get_max_time(LttvTraceState *tcs); |
| 181 | |
| 182 | static void free_max_time(LttvTraceState *tcs); |
| 183 | |
| 184 | static void create_name_tables(LttvTraceState *tcs); |
| 185 | |
| 186 | static void get_name_tables(LttvTraceState *tcs); |
| 187 | |
| 188 | static void free_name_tables(LttvTraceState *tcs); |
| 189 | |
| 190 | static void free_saved_state(LttvTraceState *tcs); |
| 191 | |
| 192 | static void lttv_state_free_process_table(GHashTable *processes); |
| 193 | |
| 194 | static void lttv_trace_states_read_raw(LttvTraceState *tcs, FILE *fp, |
| 195 | GPtrArray *quarktable); |
| 196 | |
| 197 | /* Resource function prototypes */ |
| 198 | static LttvBdevState *get_hashed_bdevstate(LttvTraceState *ts, guint16 devcode); |
| 199 | static LttvBdevState *bdevstate_new(void); |
| 200 | static void bdevstate_free(LttvBdevState *); |
| 201 | static void bdevstate_free_cb(gpointer key, gpointer value, gpointer user_data); |
| 202 | static LttvBdevState *bdevstate_copy(LttvBdevState *bds); |
| 203 | |
| 204 | |
| 205 | void lttv_state_save(LttvTraceState *self, LttvAttribute *container) |
| 206 | { |
| 207 | LTTV_TRACE_STATE_GET_CLASS(self)->state_save(self, container); |
| 208 | } |
| 209 | |
| 210 | |
| 211 | void lttv_state_restore(LttvTraceState *self, LttvAttribute *container) |
| 212 | { |
| 213 | LTTV_TRACE_STATE_GET_CLASS(self)->state_restore(self, container); |
| 214 | } |
| 215 | |
| 216 | |
| 217 | void lttv_state_state_saved_free(LttvTraceState *self, |
| 218 | LttvAttribute *container) |
| 219 | { |
| 220 | LTTV_TRACE_STATE_GET_CLASS(self)->state_saved_free(self, container); |
| 221 | } |
| 222 | |
| 223 | |
| 224 | guint process_hash(gconstpointer key) |
| 225 | { |
| 226 | guint pid = ((const LttvProcessState *)key)->pid; |
| 227 | return (pid>>8 ^ pid>>4 ^ pid>>2 ^ pid) ; |
| 228 | } |
| 229 | |
| 230 | |
| 231 | /* If the hash table hash function is well distributed, |
| 232 | * the process_equal should compare different pid */ |
| 233 | gboolean process_equal(gconstpointer a, gconstpointer b) |
| 234 | { |
| 235 | const LttvProcessState *process_a, *process_b; |
| 236 | gboolean ret = TRUE; |
| 237 | |
| 238 | process_a = (const LttvProcessState *)a; |
| 239 | process_b = (const LttvProcessState *)b; |
| 240 | |
| 241 | if(likely(process_a->pid != process_b->pid)) ret = FALSE; |
| 242 | else if(likely(process_a->pid == 0 && |
| 243 | process_a->cpu != process_b->cpu)) ret = FALSE; |
| 244 | |
| 245 | return ret; |
| 246 | } |
| 247 | |
| 248 | static void delete_usertrace(gpointer key, gpointer value, gpointer user_data) |
| 249 | { |
| 250 | g_tree_destroy((GTree*)value); |
| 251 | } |
| 252 | |
| 253 | static void lttv_state_free_usertraces(GHashTable *usertraces) |
| 254 | { |
| 255 | g_hash_table_foreach(usertraces, delete_usertrace, NULL); |
| 256 | g_hash_table_destroy(usertraces); |
| 257 | } |
| 258 | |
| 259 | gboolean rettrue(gpointer key, gpointer value, gpointer user_data) |
| 260 | { |
| 261 | return TRUE; |
| 262 | } |
| 263 | |
| 264 | static void |
| 265 | restore_init_state(LttvTraceState *self) |
| 266 | { |
| 267 | guint i, nb_cpus, nb_irqs, nb_soft_irqs, nb_traps; |
| 268 | |
| 269 | //LttvTracefileState *tfcs; |
| 270 | |
| 271 | LttTime start_time, end_time; |
| 272 | |
| 273 | /* Free the process tables */ |
| 274 | if(self->processes != NULL) lttv_state_free_process_table(self->processes); |
| 275 | if(self->usertraces != NULL) lttv_state_free_usertraces(self->usertraces); |
| 276 | self->processes = g_hash_table_new(process_hash, process_equal); |
| 277 | self->usertraces = g_hash_table_new(g_direct_hash, g_direct_equal); |
| 278 | self->nb_event = 0; |
| 279 | |
| 280 | /* Seek time to beginning */ |
| 281 | // Mathieu : fix : don't seek traceset here : causes inconsistency in seek |
| 282 | // closest. It's the tracecontext job to seek the trace to the beginning |
| 283 | // anyway : the init state might be used at the middle of the trace as well... |
| 284 | //g_tree_destroy(self->parent.ts_context->pqueue); |
| 285 | //self->parent.ts_context->pqueue = g_tree_new(compare_tracefile); |
| 286 | |
| 287 | ltt_trace_time_span_get(self->parent.t, &start_time, &end_time); |
| 288 | |
| 289 | //lttv_process_trace_seek_time(&self->parent, ltt_time_zero); |
| 290 | |
| 291 | nb_cpus = ltt_trace_get_num_cpu(self->parent.t); |
| 292 | nb_irqs = self->nb_irqs; |
| 293 | nb_soft_irqs = self->nb_soft_irqs; |
| 294 | nb_traps = self->nb_traps; |
| 295 | |
| 296 | /* Put the per cpu running_process to beginning state : process 0. */ |
| 297 | for(i=0; i< nb_cpus; i++) { |
| 298 | LttvExecutionState *es; |
| 299 | self->running_process[i] = lttv_state_create_process(self, NULL, i, 0, 0, |
| 300 | LTTV_STATE_UNNAMED, &start_time); |
| 301 | /* We are not sure is it's a kernel thread or normal thread, put the |
| 302 | * bottom stack state to unknown */ |
| 303 | self->running_process[i]->execution_stack = |
| 304 | g_array_set_size(self->running_process[i]->execution_stack, 1); |
| 305 | es = self->running_process[i]->state = |
| 306 | &g_array_index(self->running_process[i]->execution_stack, |
| 307 | LttvExecutionState, 0); |
| 308 | es->t = LTTV_STATE_MODE_UNKNOWN; |
| 309 | es->s = LTTV_STATE_UNNAMED; |
| 310 | |
| 311 | //self->running_process[i]->state->s = LTTV_STATE_RUN; |
| 312 | self->running_process[i]->cpu = i; |
| 313 | |
| 314 | /* reset cpu states */ |
| 315 | if(self->cpu_states[i].mode_stack->len > 0) |
| 316 | g_array_remove_range(self->cpu_states[i].mode_stack, 0, self->cpu_states[i].mode_stack->len); |
| 317 | } |
| 318 | |
| 319 | /* reset irq states */ |
| 320 | for(i=0; i<nb_irqs; i++) { |
| 321 | if(self->irq_states[i].mode_stack->len > 0) |
| 322 | g_array_remove_range(self->irq_states[i].mode_stack, 0, self->irq_states[i].mode_stack->len); |
| 323 | } |
| 324 | |
| 325 | /* reset softirq states */ |
| 326 | for(i=0; i<nb_soft_irqs; i++) { |
| 327 | self->soft_irq_states[i].running = 0; |
| 328 | } |
| 329 | |
| 330 | /* reset trap states */ |
| 331 | for(i=0; i<nb_traps; i++) { |
| 332 | self->trap_states[i].running = 0; |
| 333 | } |
| 334 | |
| 335 | /* reset bdev states */ |
| 336 | g_hash_table_foreach(self->bdev_states, bdevstate_free_cb, NULL); |
| 337 | //g_hash_table_steal_all(self->bdev_states); |
| 338 | g_hash_table_foreach_steal(self->bdev_states, rettrue, NULL); |
| 339 | |
| 340 | #if 0 |
| 341 | nb_tracefile = self->parent.tracefiles->len; |
| 342 | |
| 343 | for(i = 0 ; i < nb_tracefile ; i++) { |
| 344 | tfcs = |
| 345 | LTTV_TRACEFILE_STATE(g_array_index(self->parent.tracefiles, |
| 346 | LttvTracefileContext*, i)); |
| 347 | ltt_trace_time_span_get(self->parent.t, &tfcs->parent.timestamp, NULL); |
| 348 | // tfcs->saved_position = 0; |
| 349 | tfcs->process = lttv_state_create_process(tfcs, NULL,0); |
| 350 | tfcs->process->state->s = LTTV_STATE_RUN; |
| 351 | tfcs->process->last_cpu = tfcs->cpu_name; |
| 352 | tfcs->process->last_cpu_index = ltt_tracefile_num(((LttvTracefileContext*)tfcs)->tf); |
| 353 | } |
| 354 | #endif //0 |
| 355 | } |
| 356 | |
| 357 | //static LttTime time_zero = {0,0}; |
| 358 | |
| 359 | static gint compare_usertraces(gconstpointer a, gconstpointer b, |
| 360 | gpointer user_data) |
| 361 | { |
| 362 | const LttTime *t1 = (const LttTime *)a; |
| 363 | const LttTime *t2 = (const LttTime *)b; |
| 364 | |
| 365 | return ltt_time_compare(*t1, *t2); |
| 366 | } |
| 367 | |
| 368 | static void free_usertrace_key(gpointer data) |
| 369 | { |
| 370 | g_free(data); |
| 371 | } |
| 372 | |
| 373 | #define MAX_STRING_LEN 4096 |
| 374 | |
| 375 | static void |
| 376 | state_load_saved_states(LttvTraceState *tcs) |
| 377 | { |
| 378 | FILE *fp; |
| 379 | GPtrArray *quarktable; |
| 380 | const char *trace_path; |
| 381 | char path[PATH_MAX]; |
| 382 | guint count; |
| 383 | guint i; |
| 384 | tcs->has_precomputed_states = FALSE; |
| 385 | GQuark q; |
| 386 | gchar *string; |
| 387 | gint hdr; |
| 388 | gchar buf[MAX_STRING_LEN]; |
| 389 | guint len; |
| 390 | |
| 391 | trace_path = g_quark_to_string(ltt_trace_name(tcs->parent.t)); |
| 392 | strncpy(path, trace_path, PATH_MAX-1); |
| 393 | count = strnlen(trace_path, PATH_MAX-1); |
| 394 | // quarktable : open, test |
| 395 | strncat(path, "/precomputed/quarktable", PATH_MAX-count-1); |
| 396 | fp = fopen(path, "r"); |
| 397 | if(!fp) return; |
| 398 | quarktable = g_ptr_array_sized_new(4096); |
| 399 | |
| 400 | /* Index 0 is null */ |
| 401 | hdr = fgetc(fp); |
| 402 | if(hdr == EOF) return; |
| 403 | g_assert(hdr == HDR_QUARKS); |
| 404 | q = 1; |
| 405 | do { |
| 406 | hdr = fgetc(fp); |
| 407 | if(hdr == EOF) break; |
| 408 | g_assert(hdr == HDR_QUARK); |
| 409 | g_ptr_array_set_size(quarktable, q+1); |
| 410 | i=0; |
| 411 | while(1) { |
| 412 | fread(&buf[i], sizeof(gchar), 1, fp); |
| 413 | if(buf[i] == '\0' || feof(fp)) break; |
| 414 | i++; |
| 415 | } |
| 416 | len = strnlen(buf, MAX_STRING_LEN-1); |
| 417 | g_ptr_array_index (quarktable, q) = g_new(gchar, len+1); |
| 418 | strncpy(g_ptr_array_index (quarktable, q), buf, len+1); |
| 419 | q++; |
| 420 | } while(1); |
| 421 | |
| 422 | fclose(fp); |
| 423 | |
| 424 | // saved_states : open, test |
| 425 | strncpy(path, trace_path, PATH_MAX-1); |
| 426 | count = strnlen(trace_path, PATH_MAX-1); |
| 427 | strncat(path, "/precomputed/states", PATH_MAX-count-1); |
| 428 | fp = fopen(path, "r"); |
| 429 | if(!fp) return; |
| 430 | |
| 431 | hdr = fgetc(fp); |
| 432 | if(hdr != HDR_TRACE) goto end; |
| 433 | |
| 434 | lttv_trace_states_read_raw(tcs, fp, quarktable); |
| 435 | |
| 436 | tcs->has_precomputed_states = TRUE; |
| 437 | |
| 438 | end: |
| 439 | fclose(fp); |
| 440 | |
| 441 | /* Free the quarktable */ |
| 442 | for(i=0; i<quarktable->len; i++) { |
| 443 | string = g_ptr_array_index (quarktable, i); |
| 444 | g_free(string); |
| 445 | } |
| 446 | g_ptr_array_free(quarktable, TRUE); |
| 447 | return; |
| 448 | } |
| 449 | |
| 450 | static void |
| 451 | init(LttvTracesetState *self, LttvTraceset *ts) |
| 452 | { |
| 453 | guint i, j, nb_trace, nb_tracefile, nb_cpu; |
| 454 | guint64 nb_irq; |
| 455 | |
| 456 | LttvTraceContext *tc; |
| 457 | |
| 458 | LttvTraceState *tcs; |
| 459 | |
| 460 | LttvTracefileState *tfcs; |
| 461 | |
| 462 | LttvAttributeValue v; |
| 463 | |
| 464 | LTTV_TRACESET_CONTEXT_CLASS(g_type_class_peek(LTTV_TRACESET_CONTEXT_TYPE))-> |
| 465 | init((LttvTracesetContext *)self, ts); |
| 466 | |
| 467 | nb_trace = lttv_traceset_number(ts); |
| 468 | for(i = 0 ; i < nb_trace ; i++) { |
| 469 | tc = self->parent.traces[i]; |
| 470 | tcs = LTTV_TRACE_STATE(tc); |
| 471 | tcs->save_interval = LTTV_STATE_SAVE_INTERVAL; |
| 472 | lttv_attribute_find(tcs->parent.t_a, LTTV_STATE_TRACE_STATE_USE_COUNT, |
| 473 | LTTV_UINT, &v); |
| 474 | (*v.v_uint)++; |
| 475 | |
| 476 | if(*(v.v_uint) == 1) { |
| 477 | create_name_tables(tcs); |
| 478 | create_max_time(tcs); |
| 479 | } |
| 480 | get_name_tables(tcs); |
| 481 | get_max_time(tcs); |
| 482 | |
| 483 | nb_tracefile = tc->tracefiles->len; |
| 484 | nb_cpu = ltt_trace_get_num_cpu(tc->t); |
| 485 | nb_irq = tcs->nb_irqs; |
| 486 | tcs->processes = NULL; |
| 487 | tcs->usertraces = NULL; |
| 488 | tcs->running_process = g_new(LttvProcessState*, nb_cpu); |
| 489 | |
| 490 | /* init cpu resource stuff */ |
| 491 | tcs->cpu_states = g_new(LttvCPUState, nb_cpu); |
| 492 | for(j = 0; j<nb_cpu; j++) { |
| 493 | tcs->cpu_states[j].mode_stack = g_array_new(FALSE, FALSE, sizeof(LttvCPUMode)); |
| 494 | g_assert(tcs->cpu_states[j].mode_stack != NULL); |
| 495 | } |
| 496 | |
| 497 | /* init irq resource stuff */ |
| 498 | tcs->irq_states = g_new(LttvIRQState, nb_irq); |
| 499 | for(j = 0; j<nb_irq; j++) { |
| 500 | tcs->irq_states[j].mode_stack = g_array_new(FALSE, FALSE, sizeof(LttvIRQMode)); |
| 501 | g_assert(tcs->irq_states[j].mode_stack != NULL); |
| 502 | } |
| 503 | |
| 504 | /* init soft irq stuff */ |
| 505 | /* the kernel has a statically fixed max of 32 softirqs */ |
| 506 | tcs->soft_irq_states = g_new(LttvSoftIRQState, tcs->nb_soft_irqs); |
| 507 | |
| 508 | /* init trap stuff */ |
| 509 | tcs->trap_states = g_new(LttvTrapState, tcs->nb_traps); |
| 510 | |
| 511 | /* init bdev resource stuff */ |
| 512 | tcs->bdev_states = g_hash_table_new(g_int_hash, g_int_equal); |
| 513 | |
| 514 | restore_init_state(tcs); |
| 515 | for(j = 0 ; j < nb_tracefile ; j++) { |
| 516 | tfcs = |
| 517 | LTTV_TRACEFILE_STATE(g_array_index(tc->tracefiles, |
| 518 | LttvTracefileContext*, j)); |
| 519 | tfcs->tracefile_name = ltt_tracefile_name(tfcs->parent.tf); |
| 520 | tfcs->cpu = ltt_tracefile_cpu(tfcs->parent.tf); |
| 521 | tfcs->cpu_state = &(tcs->cpu_states[tfcs->cpu]); |
| 522 | if(ltt_tracefile_tid(tfcs->parent.tf) != 0) { |
| 523 | /* It's a Usertrace */ |
| 524 | guint tid = ltt_tracefile_tid(tfcs->parent.tf); |
| 525 | GTree *usertrace_tree = (GTree*)g_hash_table_lookup(tcs->usertraces, |
| 526 | (gconstpointer)tid); |
| 527 | if(!usertrace_tree) { |
| 528 | usertrace_tree = g_tree_new_full(compare_usertraces, |
| 529 | NULL, free_usertrace_key, NULL); |
| 530 | g_hash_table_insert(tcs->usertraces, |
| 531 | (gpointer)tid, usertrace_tree); |
| 532 | } |
| 533 | LttTime *timestamp = g_new(LttTime, 1); |
| 534 | *timestamp = ltt_interpolate_time_from_tsc(tfcs->parent.tf, |
| 535 | ltt_tracefile_creation(tfcs->parent.tf)); |
| 536 | g_tree_insert(usertrace_tree, timestamp, tfcs); |
| 537 | } |
| 538 | } |
| 539 | |
| 540 | /* See if the trace has saved states */ |
| 541 | state_load_saved_states(tcs); |
| 542 | } |
| 543 | } |
| 544 | |
| 545 | static void |
| 546 | fini(LttvTracesetState *self) |
| 547 | { |
| 548 | guint i, nb_trace; |
| 549 | |
| 550 | LttvTraceState *tcs; |
| 551 | |
| 552 | //LttvTracefileState *tfcs; |
| 553 | |
| 554 | LttvAttributeValue v; |
| 555 | |
| 556 | nb_trace = lttv_traceset_number(LTTV_TRACESET_CONTEXT(self)->ts); |
| 557 | for(i = 0 ; i < nb_trace ; i++) { |
| 558 | tcs = (LttvTraceState *)(LTTV_TRACESET_CONTEXT(self)->traces[i]); |
| 559 | lttv_attribute_find(tcs->parent.t_a, LTTV_STATE_TRACE_STATE_USE_COUNT, |
| 560 | LTTV_UINT, &v); |
| 561 | |
| 562 | g_assert(*(v.v_uint) != 0); |
| 563 | (*v.v_uint)--; |
| 564 | |
| 565 | if(*(v.v_uint) == 0) { |
| 566 | free_name_tables(tcs); |
| 567 | free_max_time(tcs); |
| 568 | free_saved_state(tcs); |
| 569 | } |
| 570 | g_free(tcs->running_process); |
| 571 | tcs->running_process = NULL; |
| 572 | lttv_state_free_process_table(tcs->processes); |
| 573 | lttv_state_free_usertraces(tcs->usertraces); |
| 574 | tcs->processes = NULL; |
| 575 | tcs->usertraces = NULL; |
| 576 | } |
| 577 | LTTV_TRACESET_CONTEXT_CLASS(g_type_class_peek(LTTV_TRACESET_CONTEXT_TYPE))-> |
| 578 | fini((LttvTracesetContext *)self); |
| 579 | } |
| 580 | |
| 581 | |
| 582 | static LttvTracesetContext * |
| 583 | new_traceset_context(LttvTracesetContext *self) |
| 584 | { |
| 585 | return LTTV_TRACESET_CONTEXT(g_object_new(LTTV_TRACESET_STATE_TYPE, NULL)); |
| 586 | } |
| 587 | |
| 588 | |
| 589 | static LttvTraceContext * |
| 590 | new_trace_context(LttvTracesetContext *self) |
| 591 | { |
| 592 | return LTTV_TRACE_CONTEXT(g_object_new(LTTV_TRACE_STATE_TYPE, NULL)); |
| 593 | } |
| 594 | |
| 595 | |
| 596 | static LttvTracefileContext * |
| 597 | new_tracefile_context(LttvTracesetContext *self) |
| 598 | { |
| 599 | return LTTV_TRACEFILE_CONTEXT(g_object_new(LTTV_TRACEFILE_STATE_TYPE, NULL)); |
| 600 | } |
| 601 | |
| 602 | |
| 603 | /* Write the process state of the trace */ |
| 604 | |
| 605 | static void write_process_state(gpointer key, gpointer value, |
| 606 | gpointer user_data) |
| 607 | { |
| 608 | LttvProcessState *process; |
| 609 | |
| 610 | LttvExecutionState *es; |
| 611 | |
| 612 | FILE *fp = (FILE *)user_data; |
| 613 | |
| 614 | guint i; |
| 615 | guint64 address; |
| 616 | |
| 617 | process = (LttvProcessState *)value; |
| 618 | fprintf(fp, |
| 619 | " <PROCESS CORE=%p PID=%u TGID=%u PPID=%u TYPE=\"%s\" CTIME_S=%lu CTIME_NS=%lu ITIME_S=%lu ITIME_NS=%lu NAME=\"%s\" BRAND=\"%s\" CPU=\"%u\" FREE_EVENTS=\"%u\">\n", |
| 620 | process, process->pid, process->tgid, process->ppid, |
| 621 | g_quark_to_string(process->type), |
| 622 | process->creation_time.tv_sec, |
| 623 | process->creation_time.tv_nsec, |
| 624 | process->insertion_time.tv_sec, |
| 625 | process->insertion_time.tv_nsec, |
| 626 | g_quark_to_string(process->name), |
| 627 | g_quark_to_string(process->brand), |
| 628 | process->cpu, process->free_events); |
| 629 | |
| 630 | for(i = 0 ; i < process->execution_stack->len; i++) { |
| 631 | es = &g_array_index(process->execution_stack, LttvExecutionState, i); |
| 632 | fprintf(fp, " <ES MODE=\"%s\" SUBMODE=\"%s\" ENTRY_S=%lu ENTRY_NS=%lu", |
| 633 | g_quark_to_string(es->t), g_quark_to_string(es->n), |
| 634 | es->entry.tv_sec, es->entry.tv_nsec); |
| 635 | fprintf(fp, " CHANGE_S=%lu CHANGE_NS=%lu STATUS=\"%s\"/>\n", |
| 636 | es->change.tv_sec, es->change.tv_nsec, g_quark_to_string(es->s)); |
| 637 | } |
| 638 | |
| 639 | for(i = 0 ; i < process->user_stack->len; i++) { |
| 640 | address = g_array_index(process->user_stack, guint64, i); |
| 641 | fprintf(fp, " <USER_STACK ADDRESS=\"%llu\"/>\n", |
| 642 | address); |
| 643 | } |
| 644 | |
| 645 | if(process->usertrace) { |
| 646 | fprintf(fp, " <USERTRACE NAME=\"%s\" CPU=%u\n/>", |
| 647 | g_quark_to_string(process->usertrace->tracefile_name), |
| 648 | process->usertrace->cpu); |
| 649 | } |
| 650 | |
| 651 | |
| 652 | fprintf(fp, " </PROCESS>\n"); |
| 653 | } |
| 654 | |
| 655 | |
| 656 | void lttv_state_write(LttvTraceState *self, LttTime t, FILE *fp) |
| 657 | { |
| 658 | guint i, nb_tracefile, nb_block, offset; |
| 659 | guint64 tsc; |
| 660 | |
| 661 | LttvTracefileState *tfcs; |
| 662 | |
| 663 | LttTracefile *tf; |
| 664 | |
| 665 | LttEventPosition *ep; |
| 666 | |
| 667 | guint nb_cpus; |
| 668 | |
| 669 | ep = ltt_event_position_new(); |
| 670 | |
| 671 | fprintf(fp,"<PROCESS_STATE TIME_S=%lu TIME_NS=%lu>\n", t.tv_sec, t.tv_nsec); |
| 672 | |
| 673 | g_hash_table_foreach(self->processes, write_process_state, fp); |
| 674 | |
| 675 | nb_cpus = ltt_trace_get_num_cpu(self->parent.t); |
| 676 | for(i=0;i<nb_cpus;i++) { |
| 677 | fprintf(fp," <CPU NUM=%u RUNNING_PROCESS=%u>\n", |
| 678 | i, self->running_process[i]->pid); |
| 679 | } |
| 680 | |
| 681 | nb_tracefile = self->parent.tracefiles->len; |
| 682 | |
| 683 | for(i = 0 ; i < nb_tracefile ; i++) { |
| 684 | tfcs = |
| 685 | LTTV_TRACEFILE_STATE(g_array_index(self->parent.tracefiles, |
| 686 | LttvTracefileContext*, i)); |
| 687 | fprintf(fp, " <TRACEFILE TIMESTAMP_S=%lu TIMESTAMP_NS=%lu", |
| 688 | tfcs->parent.timestamp.tv_sec, |
| 689 | tfcs->parent.timestamp.tv_nsec); |
| 690 | LttEvent *e = ltt_tracefile_get_event(tfcs->parent.tf); |
| 691 | if(e == NULL) fprintf(fp,"/>\n"); |
| 692 | else { |
| 693 | ltt_event_position(e, ep); |
| 694 | ltt_event_position_get(ep, &tf, &nb_block, &offset, &tsc); |
| 695 | fprintf(fp, " BLOCK=%u OFFSET=%u TSC=%llu/>\n", nb_block, offset, |
| 696 | tsc); |
| 697 | } |
| 698 | } |
| 699 | g_free(ep); |
| 700 | fprintf(fp,"</PROCESS_STATE>\n"); |
| 701 | } |
| 702 | |
| 703 | |
| 704 | static void write_process_state_raw(gpointer key, gpointer value, |
| 705 | gpointer user_data) |
| 706 | { |
| 707 | LttvProcessState *process; |
| 708 | |
| 709 | LttvExecutionState *es; |
| 710 | |
| 711 | FILE *fp = (FILE *)user_data; |
| 712 | |
| 713 | guint i; |
| 714 | guint64 address; |
| 715 | |
| 716 | process = (LttvProcessState *)value; |
| 717 | fputc(HDR_PROCESS, fp); |
| 718 | //fwrite(&header, sizeof(header), 1, fp); |
| 719 | //fprintf(fp, "%s", g_quark_to_string(process->type)); |
| 720 | //fputc('\0', fp); |
| 721 | fwrite(&process->type, sizeof(process->type), 1, fp); |
| 722 | //fprintf(fp, "%s", g_quark_to_string(process->name)); |
| 723 | //fputc('\0', fp); |
| 724 | fwrite(&process->name, sizeof(process->name), 1, fp); |
| 725 | //fprintf(fp, "%s", g_quark_to_string(process->brand)); |
| 726 | //fputc('\0', fp); |
| 727 | fwrite(&process->brand, sizeof(process->brand), 1, fp); |
| 728 | fwrite(&process->pid, sizeof(process->pid), 1, fp); |
| 729 | fwrite(&process->free_events, sizeof(process->free_events), 1, fp); |
| 730 | fwrite(&process->tgid, sizeof(process->tgid), 1, fp); |
| 731 | fwrite(&process->ppid, sizeof(process->ppid), 1, fp); |
| 732 | fwrite(&process->cpu, sizeof(process->cpu), 1, fp); |
| 733 | fwrite(&process->creation_time, sizeof(process->creation_time), 1, fp); |
| 734 | fwrite(&process->insertion_time, sizeof(process->insertion_time), 1, fp); |
| 735 | |
| 736 | #if 0 |
| 737 | fprintf(fp, |
| 738 | " <PROCESS CORE=%p PID=%u TGID=%u PPID=%u TYPE=\"%s\" CTIME_S=%lu CTIME_NS=%lu ITIME_S=%lu ITIME_NS=%lu NAME=\"%s\" BRAND=\"%s\" CPU=\"%u\" PROCESS_TYPE=%u>\n", |
| 739 | process, process->pid, process->tgid, process->ppid, |
| 740 | g_quark_to_string(process->type), |
| 741 | process->creation_time.tv_sec, |
| 742 | process->creation_time.tv_nsec, |
| 743 | process->insertion_time.tv_sec, |
| 744 | process->insertion_time.tv_nsec, |
| 745 | g_quark_to_string(process->name), |
| 746 | g_quark_to_string(process->brand), |
| 747 | process->cpu); |
| 748 | #endif //0 |
| 749 | |
| 750 | for(i = 0 ; i < process->execution_stack->len; i++) { |
| 751 | es = &g_array_index(process->execution_stack, LttvExecutionState, i); |
| 752 | |
| 753 | fputc(HDR_ES, fp); |
| 754 | //fprintf(fp, "%s", g_quark_to_string(es->t)); |
| 755 | //fputc('\0', fp); |
| 756 | fwrite(&es->t, sizeof(es->t), 1, fp); |
| 757 | //fprintf(fp, "%s", g_quark_to_string(es->n)); |
| 758 | //fputc('\0', fp); |
| 759 | fwrite(&es->n, sizeof(es->n), 1, fp); |
| 760 | //fprintf(fp, "%s", g_quark_to_string(es->s)); |
| 761 | //fputc('\0', fp); |
| 762 | fwrite(&es->s, sizeof(es->s), 1, fp); |
| 763 | fwrite(&es->entry, sizeof(es->entry), 1, fp); |
| 764 | fwrite(&es->change, sizeof(es->change), 1, fp); |
| 765 | fwrite(&es->cum_cpu_time, sizeof(es->cum_cpu_time), 1, fp); |
| 766 | #if 0 |
| 767 | fprintf(fp, " <ES MODE=\"%s\" SUBMODE=\"%s\" ENTRY_S=%lu ENTRY_NS=%lu", |
| 768 | g_quark_to_string(es->t), g_quark_to_string(es->n), |
| 769 | es->entry.tv_sec, es->entry.tv_nsec); |
| 770 | fprintf(fp, " CHANGE_S=%lu CHANGE_NS=%lu STATUS=\"%s\"/>\n", |
| 771 | es->change.tv_sec, es->change.tv_nsec, g_quark_to_string(es->s)); |
| 772 | #endif //0 |
| 773 | } |
| 774 | |
| 775 | for(i = 0 ; i < process->user_stack->len; i++) { |
| 776 | address = g_array_index(process->user_stack, guint64, i); |
| 777 | fputc(HDR_USER_STACK, fp); |
| 778 | fwrite(&address, sizeof(address), 1, fp); |
| 779 | #if 0 |
| 780 | fprintf(fp, " <USER_STACK ADDRESS=\"%llu\"/>\n", |
| 781 | address); |
| 782 | #endif //0 |
| 783 | } |
| 784 | |
| 785 | if(process->usertrace) { |
| 786 | fputc(HDR_USERTRACE, fp); |
| 787 | //fprintf(fp, "%s", g_quark_to_string(process->usertrace->tracefile_name)); |
| 788 | //fputc('\0', fp); |
| 789 | fwrite(&process->usertrace->tracefile_name, |
| 790 | sizeof(process->usertrace->tracefile_name), 1, fp); |
| 791 | fwrite(&process->usertrace->cpu, sizeof(process->usertrace->cpu), 1, fp); |
| 792 | #if 0 |
| 793 | fprintf(fp, " <USERTRACE NAME=\"%s\" CPU=%u\n/>", |
| 794 | g_quark_to_string(process->usertrace->tracefile_name), |
| 795 | process->usertrace->cpu); |
| 796 | #endif //0 |
| 797 | } |
| 798 | |
| 799 | } |
| 800 | |
| 801 | |
| 802 | void lttv_state_write_raw(LttvTraceState *self, LttTime t, FILE *fp) |
| 803 | { |
| 804 | guint i, nb_tracefile, nb_block, offset; |
| 805 | guint64 tsc; |
| 806 | |
| 807 | LttvTracefileState *tfcs; |
| 808 | |
| 809 | LttTracefile *tf; |
| 810 | |
| 811 | LttEventPosition *ep; |
| 812 | |
| 813 | guint nb_cpus; |
| 814 | |
| 815 | ep = ltt_event_position_new(); |
| 816 | |
| 817 | //fprintf(fp,"<PROCESS_STATE TIME_S=%lu TIME_NS=%lu>\n", t.tv_sec, t.tv_nsec); |
| 818 | fputc(HDR_PROCESS_STATE, fp); |
| 819 | fwrite(&t, sizeof(t), 1, fp); |
| 820 | |
| 821 | g_hash_table_foreach(self->processes, write_process_state_raw, fp); |
| 822 | |
| 823 | nb_cpus = ltt_trace_get_num_cpu(self->parent.t); |
| 824 | for(i=0;i<nb_cpus;i++) { |
| 825 | fputc(HDR_CPU, fp); |
| 826 | fwrite(&i, sizeof(i), 1, fp); /* cpu number */ |
| 827 | fwrite(&self->running_process[i]->pid, |
| 828 | sizeof(self->running_process[i]->pid), 1, fp); |
| 829 | //fprintf(fp," <CPU NUM=%u RUNNING_PROCESS=%u>\n", |
| 830 | // i, self->running_process[i]->pid); |
| 831 | } |
| 832 | |
| 833 | nb_tracefile = self->parent.tracefiles->len; |
| 834 | |
| 835 | for(i = 0 ; i < nb_tracefile ; i++) { |
| 836 | tfcs = |
| 837 | LTTV_TRACEFILE_STATE(g_array_index(self->parent.tracefiles, |
| 838 | LttvTracefileContext*, i)); |
| 839 | // fprintf(fp, " <TRACEFILE TIMESTAMP_S=%lu TIMESTAMP_NS=%lu", |
| 840 | // tfcs->parent.timestamp.tv_sec, |
| 841 | // tfcs->parent.timestamp.tv_nsec); |
| 842 | fputc(HDR_TRACEFILE, fp); |
| 843 | fwrite(&tfcs->parent.timestamp, sizeof(tfcs->parent.timestamp), 1, fp); |
| 844 | /* Note : if timestamp if LTT_TIME_INFINITE, there will be no |
| 845 | * position following : end of trace */ |
| 846 | LttEvent *e = ltt_tracefile_get_event(tfcs->parent.tf); |
| 847 | if(e != NULL) { |
| 848 | ltt_event_position(e, ep); |
| 849 | ltt_event_position_get(ep, &tf, &nb_block, &offset, &tsc); |
| 850 | //fprintf(fp, " BLOCK=%u OFFSET=%u TSC=%llu/>\n", nb_block, offset, |
| 851 | // tsc); |
| 852 | fwrite(&nb_block, sizeof(nb_block), 1, fp); |
| 853 | fwrite(&offset, sizeof(offset), 1, fp); |
| 854 | fwrite(&tsc, sizeof(tsc), 1, fp); |
| 855 | } |
| 856 | } |
| 857 | g_free(ep); |
| 858 | } |
| 859 | |
| 860 | |
| 861 | /* Read process state from a file */ |
| 862 | |
| 863 | /* Called because a HDR_PROCESS was found */ |
| 864 | static void read_process_state_raw(LttvTraceState *self, FILE *fp, |
| 865 | GPtrArray *quarktable) |
| 866 | { |
| 867 | LttvExecutionState *es; |
| 868 | LttvProcessState *process, *parent_process; |
| 869 | LttvProcessState tmp; |
| 870 | GQuark tmpq; |
| 871 | |
| 872 | guint64 *address; |
| 873 | |
| 874 | /* TODO : check return value */ |
| 875 | fread(&tmp.type, sizeof(tmp.type), 1, fp); |
| 876 | fread(&tmp.name, sizeof(tmp.name), 1, fp); |
| 877 | fread(&tmp.brand, sizeof(tmp.brand), 1, fp); |
| 878 | fread(&tmp.pid, sizeof(tmp.pid), 1, fp); |
| 879 | fread(&tmp.free_events, sizeof(tmp.free_events), 1, fp); |
| 880 | fread(&tmp.tgid, sizeof(tmp.tgid), 1, fp); |
| 881 | fread(&tmp.ppid, sizeof(tmp.ppid), 1, fp); |
| 882 | fread(&tmp.cpu, sizeof(tmp.cpu), 1, fp); |
| 883 | fread(&tmp.creation_time, sizeof(tmp.creation_time), 1, fp); |
| 884 | fread(&tmp.insertion_time, sizeof(tmp.insertion_time), 1, fp); |
| 885 | |
| 886 | if(tmp.pid == 0) { |
| 887 | process = lttv_state_find_process(self, tmp.cpu, tmp.pid); |
| 888 | } else { |
| 889 | /* We must link to the parent */ |
| 890 | parent_process = lttv_state_find_process_or_create(self, ANY_CPU, tmp.ppid, |
| 891 | <t_time_zero); |
| 892 | process = lttv_state_find_process(self, ANY_CPU, tmp.pid); |
| 893 | if(process == NULL) { |
| 894 | process = lttv_state_create_process(self, parent_process, tmp.cpu, |
| 895 | tmp.pid, tmp.tgid, |
| 896 | g_quark_from_string((gchar*)g_ptr_array_index(quarktable, tmp.name)), |
| 897 | &tmp.creation_time); |
| 898 | } |
| 899 | } |
| 900 | process->insertion_time = tmp.insertion_time; |
| 901 | process->creation_time = tmp.creation_time; |
| 902 | process->type = g_quark_from_string( |
| 903 | (gchar*)g_ptr_array_index(quarktable, tmp.type)); |
| 904 | process->tgid = tmp.tgid; |
| 905 | process->ppid = tmp.ppid; |
| 906 | process->brand = g_quark_from_string( |
| 907 | (gchar*)g_ptr_array_index(quarktable, tmp.brand)); |
| 908 | process->name = |
| 909 | g_quark_from_string((gchar*)g_ptr_array_index(quarktable, tmp.name)); |
| 910 | process->free_events = tmp.free_events; |
| 911 | |
| 912 | do { |
| 913 | if(feof(fp) || ferror(fp)) goto end_loop; |
| 914 | |
| 915 | gint hdr = fgetc(fp); |
| 916 | if(hdr == EOF) goto end_loop; |
| 917 | |
| 918 | switch(hdr) { |
| 919 | case HDR_ES: |
| 920 | process->execution_stack = |
| 921 | g_array_set_size(process->execution_stack, |
| 922 | process->execution_stack->len + 1); |
| 923 | es = &g_array_index(process->execution_stack, LttvExecutionState, |
| 924 | process->execution_stack->len-1); |
| 925 | process->state = es; |
| 926 | |
| 927 | fread(&es->t, sizeof(es->t), 1, fp); |
| 928 | es->t = g_quark_from_string( |
| 929 | (gchar*)g_ptr_array_index(quarktable, es->t)); |
| 930 | fread(&es->n, sizeof(es->n), 1, fp); |
| 931 | es->n = g_quark_from_string( |
| 932 | (gchar*)g_ptr_array_index(quarktable, es->n)); |
| 933 | fread(&es->s, sizeof(es->s), 1, fp); |
| 934 | es->s = g_quark_from_string( |
| 935 | (gchar*)g_ptr_array_index(quarktable, es->s)); |
| 936 | fread(&es->entry, sizeof(es->entry), 1, fp); |
| 937 | fread(&es->change, sizeof(es->change), 1, fp); |
| 938 | fread(&es->cum_cpu_time, sizeof(es->cum_cpu_time), 1, fp); |
| 939 | break; |
| 940 | case HDR_USER_STACK: |
| 941 | process->user_stack = g_array_set_size(process->user_stack, |
| 942 | process->user_stack->len + 1); |
| 943 | address = &g_array_index(process->user_stack, guint64, |
| 944 | process->user_stack->len-1); |
| 945 | fread(address, sizeof(address), 1, fp); |
| 946 | process->current_function = *address; |
| 947 | break; |
| 948 | case HDR_USERTRACE: |
| 949 | fread(&tmpq, sizeof(tmpq), 1, fp); |
| 950 | fread(&process->usertrace->cpu, sizeof(process->usertrace->cpu), 1, fp); |
| 951 | break; |
| 952 | default: |
| 953 | ungetc(hdr, fp); |
| 954 | goto end_loop; |
| 955 | }; |
| 956 | } while(1); |
| 957 | end_loop: |
| 958 | return; |
| 959 | } |
| 960 | |
| 961 | |
| 962 | /* Called because a HDR_PROCESS_STATE was found */ |
| 963 | /* Append a saved state to the trace states */ |
| 964 | void lttv_state_read_raw(LttvTraceState *self, FILE *fp, GPtrArray *quarktable) |
| 965 | { |
| 966 | guint i, nb_tracefile, nb_block, offset; |
| 967 | guint64 tsc; |
| 968 | LttvTracefileState *tfcs; |
| 969 | |
| 970 | LttEventPosition *ep; |
| 971 | |
| 972 | guint nb_cpus; |
| 973 | |
| 974 | int hdr; |
| 975 | |
| 976 | LttTime t; |
| 977 | |
| 978 | LttvAttribute *saved_states_tree, *saved_state_tree; |
| 979 | |
| 980 | LttvAttributeValue value; |
| 981 | GTree *pqueue = self->parent.ts_context->pqueue; |
| 982 | ep = ltt_event_position_new(); |
| 983 | |
| 984 | restore_init_state(self); |
| 985 | |
| 986 | fread(&t, sizeof(t), 1, fp); |
| 987 | |
| 988 | do { |
| 989 | if(feof(fp) || ferror(fp)) goto end_loop; |
| 990 | hdr = fgetc(fp); |
| 991 | if(hdr == EOF) goto end_loop; |
| 992 | |
| 993 | switch(hdr) { |
| 994 | case HDR_PROCESS: |
| 995 | /* Call read_process_state_raw */ |
| 996 | read_process_state_raw(self, fp, quarktable); |
| 997 | break; |
| 998 | case HDR_TRACEFILE: |
| 999 | case HDR_TRACESET: |
| 1000 | case HDR_TRACE: |
| 1001 | case HDR_QUARKS: |
| 1002 | case HDR_QUARK: |
| 1003 | case HDR_ES: |
| 1004 | case HDR_USER_STACK: |
| 1005 | case HDR_USERTRACE: |
| 1006 | case HDR_PROCESS_STATE: |
| 1007 | case HDR_CPU: |
| 1008 | ungetc(hdr, fp); |
| 1009 | goto end_loop; |
| 1010 | break; |
| 1011 | default: |
| 1012 | g_error("Error while parsing saved state file : unknown data header %d", |
| 1013 | hdr); |
| 1014 | }; |
| 1015 | } while(1); |
| 1016 | end_loop: |
| 1017 | |
| 1018 | nb_cpus = ltt_trace_get_num_cpu(self->parent.t); |
| 1019 | for(i=0;i<nb_cpus;i++) { |
| 1020 | int cpu_num; |
| 1021 | hdr = fgetc(fp); |
| 1022 | g_assert(hdr == HDR_CPU); |
| 1023 | fread(&cpu_num, sizeof(cpu_num), 1, fp); /* cpu number */ |
| 1024 | g_assert(i == cpu_num); |
| 1025 | fread(&self->running_process[i]->pid, |
| 1026 | sizeof(self->running_process[i]->pid), 1, fp); |
| 1027 | } |
| 1028 | |
| 1029 | nb_tracefile = self->parent.tracefiles->len; |
| 1030 | |
| 1031 | for(i = 0 ; i < nb_tracefile ; i++) { |
| 1032 | tfcs = |
| 1033 | LTTV_TRACEFILE_STATE(g_array_index(self->parent.tracefiles, |
| 1034 | LttvTracefileContext*, i)); |
| 1035 | // fprintf(fp, " <TRACEFILE TIMESTAMP_S=%lu TIMESTAMP_NS=%lu", |
| 1036 | // tfcs->parent.timestamp.tv_sec, |
| 1037 | // tfcs->parent.timestamp.tv_nsec); |
| 1038 | g_tree_remove(pqueue, &tfcs->parent); |
| 1039 | hdr = fgetc(fp); |
| 1040 | g_assert(hdr == HDR_TRACEFILE); |
| 1041 | fread(&tfcs->parent.timestamp, sizeof(tfcs->parent.timestamp), 1, fp); |
| 1042 | /* Note : if timestamp if LTT_TIME_INFINITE, there will be no |
| 1043 | * position following : end of trace */ |
| 1044 | if(ltt_time_compare(tfcs->parent.timestamp, ltt_time_infinite) != 0) { |
| 1045 | fread(&nb_block, sizeof(nb_block), 1, fp); |
| 1046 | fread(&offset, sizeof(offset), 1, fp); |
| 1047 | fread(&tsc, sizeof(tsc), 1, fp); |
| 1048 | ltt_event_position_set(ep, tfcs->parent.tf, nb_block, offset, tsc); |
| 1049 | gint ret = ltt_tracefile_seek_position(tfcs->parent.tf, ep); |
| 1050 | g_assert(ret == 0); |
| 1051 | g_tree_insert(pqueue, &tfcs->parent, &tfcs->parent); |
| 1052 | } |
| 1053 | } |
| 1054 | g_free(ep); |
| 1055 | |
| 1056 | saved_states_tree = lttv_attribute_find_subdir(self->parent.t_a, |
| 1057 | LTTV_STATE_SAVED_STATES); |
| 1058 | saved_state_tree = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL); |
| 1059 | value = lttv_attribute_add(saved_states_tree, |
| 1060 | lttv_attribute_get_number(saved_states_tree), LTTV_GOBJECT); |
| 1061 | *(value.v_gobject) = (GObject *)saved_state_tree; |
| 1062 | value = lttv_attribute_add(saved_state_tree, LTTV_STATE_TIME, LTTV_TIME); |
| 1063 | *(value.v_time) = t; |
| 1064 | lttv_state_save(self, saved_state_tree); |
| 1065 | g_debug("Saving state at time %lu.%lu", t.tv_sec, |
| 1066 | t.tv_nsec); |
| 1067 | |
| 1068 | *(self->max_time_state_recomputed_in_seek) = t; |
| 1069 | |
| 1070 | } |
| 1071 | |
| 1072 | /* Called when a HDR_TRACE is found */ |
| 1073 | void lttv_trace_states_read_raw(LttvTraceState *tcs, FILE *fp, |
| 1074 | GPtrArray *quarktable) |
| 1075 | { |
| 1076 | int hdr; |
| 1077 | |
| 1078 | do { |
| 1079 | if(feof(fp) || ferror(fp)) goto end_loop; |
| 1080 | hdr = fgetc(fp); |
| 1081 | if(hdr == EOF) goto end_loop; |
| 1082 | |
| 1083 | switch(hdr) { |
| 1084 | case HDR_PROCESS_STATE: |
| 1085 | /* Call read_process_state_raw */ |
| 1086 | lttv_state_read_raw(tcs, fp, quarktable); |
| 1087 | break; |
| 1088 | case HDR_TRACEFILE: |
| 1089 | case HDR_TRACESET: |
| 1090 | case HDR_TRACE: |
| 1091 | case HDR_QUARKS: |
| 1092 | case HDR_QUARK: |
| 1093 | case HDR_ES: |
| 1094 | case HDR_USER_STACK: |
| 1095 | case HDR_USERTRACE: |
| 1096 | case HDR_PROCESS: |
| 1097 | case HDR_CPU: |
| 1098 | g_error("Error while parsing saved state file :" |
| 1099 | " unexpected data header %d", |
| 1100 | hdr); |
| 1101 | break; |
| 1102 | default: |
| 1103 | g_error("Error while parsing saved state file : unknown data header %d", |
| 1104 | hdr); |
| 1105 | }; |
| 1106 | } while(1); |
| 1107 | end_loop: |
| 1108 | *(tcs->max_time_state_recomputed_in_seek) = tcs->parent.time_span.end_time; |
| 1109 | restore_init_state(tcs); |
| 1110 | lttv_process_trace_seek_time(&tcs->parent, ltt_time_zero); |
| 1111 | return; |
| 1112 | } |
| 1113 | |
| 1114 | |
| 1115 | |
| 1116 | /* Copy each process from an existing hash table to a new one */ |
| 1117 | |
| 1118 | static void copy_process_state(gpointer key, gpointer value,gpointer user_data) |
| 1119 | { |
| 1120 | LttvProcessState *process, *new_process; |
| 1121 | |
| 1122 | GHashTable *new_processes = (GHashTable *)user_data; |
| 1123 | |
| 1124 | guint i; |
| 1125 | |
| 1126 | process = (LttvProcessState *)value; |
| 1127 | new_process = g_new(LttvProcessState, 1); |
| 1128 | *new_process = *process; |
| 1129 | new_process->execution_stack = g_array_sized_new(FALSE, FALSE, |
| 1130 | sizeof(LttvExecutionState), PREALLOCATED_EXECUTION_STACK); |
| 1131 | new_process->execution_stack = |
| 1132 | g_array_set_size(new_process->execution_stack, |
| 1133 | process->execution_stack->len); |
| 1134 | for(i = 0 ; i < process->execution_stack->len; i++) { |
| 1135 | g_array_index(new_process->execution_stack, LttvExecutionState, i) = |
| 1136 | g_array_index(process->execution_stack, LttvExecutionState, i); |
| 1137 | } |
| 1138 | new_process->state = &g_array_index(new_process->execution_stack, |
| 1139 | LttvExecutionState, new_process->execution_stack->len - 1); |
| 1140 | new_process->user_stack = g_array_sized_new(FALSE, FALSE, |
| 1141 | sizeof(guint64), 0); |
| 1142 | new_process->user_stack = |
| 1143 | g_array_set_size(new_process->user_stack, |
| 1144 | process->user_stack->len); |
| 1145 | for(i = 0 ; i < process->user_stack->len; i++) { |
| 1146 | g_array_index(new_process->user_stack, guint64, i) = |
| 1147 | g_array_index(process->user_stack, guint64, i); |
| 1148 | } |
| 1149 | new_process->current_function = process->current_function; |
| 1150 | g_hash_table_insert(new_processes, new_process, new_process); |
| 1151 | } |
| 1152 | |
| 1153 | |
| 1154 | static GHashTable *lttv_state_copy_process_table(GHashTable *processes) |
| 1155 | { |
| 1156 | GHashTable *new_processes = g_hash_table_new(process_hash, process_equal); |
| 1157 | |
| 1158 | g_hash_table_foreach(processes, copy_process_state, new_processes); |
| 1159 | return new_processes; |
| 1160 | } |
| 1161 | |
| 1162 | static LttvCPUState *lttv_state_copy_cpu_states(LttvCPUState *states, guint n) |
| 1163 | { |
| 1164 | guint i,j; |
| 1165 | LttvCPUState *retval; |
| 1166 | |
| 1167 | retval = g_malloc(n*sizeof(LttvCPUState)); |
| 1168 | |
| 1169 | for(i=0; i<n; i++) { |
| 1170 | retval[i].mode_stack = g_array_new(FALSE, FALSE, sizeof(LttvCPUMode)); |
| 1171 | retval[i].last_irq = states[i].last_irq; |
| 1172 | g_array_set_size(retval[i].mode_stack, states[i].mode_stack->len); |
| 1173 | for(j=0; j<states[i].mode_stack->len; j++) { |
| 1174 | g_array_index(retval[i].mode_stack, GQuark, j) = g_array_index(states[i].mode_stack, GQuark, j); |
| 1175 | } |
| 1176 | } |
| 1177 | |
| 1178 | return retval; |
| 1179 | } |
| 1180 | |
| 1181 | static void lttv_state_free_cpu_states(LttvCPUState *states, guint n) |
| 1182 | { |
| 1183 | guint i; |
| 1184 | |
| 1185 | for(i=0; i<n; i++) { |
| 1186 | g_array_free(states[i].mode_stack, TRUE); |
| 1187 | } |
| 1188 | |
| 1189 | g_free(states); |
| 1190 | } |
| 1191 | |
| 1192 | static LttvIRQState *lttv_state_copy_irq_states(LttvIRQState *states, guint n) |
| 1193 | { |
| 1194 | guint i,j; |
| 1195 | LttvIRQState *retval; |
| 1196 | |
| 1197 | retval = g_malloc(n*sizeof(LttvIRQState)); |
| 1198 | |
| 1199 | for(i=0; i<n; i++) { |
| 1200 | retval[i].mode_stack = g_array_new(FALSE, FALSE, sizeof(LttvIRQMode)); |
| 1201 | g_array_set_size(retval[i].mode_stack, states[i].mode_stack->len); |
| 1202 | for(j=0; j<states[i].mode_stack->len; j++) { |
| 1203 | g_array_index(retval[i].mode_stack, GQuark, j) = g_array_index(states[i].mode_stack, GQuark, j); |
| 1204 | } |
| 1205 | } |
| 1206 | |
| 1207 | return retval; |
| 1208 | } |
| 1209 | |
| 1210 | static void lttv_state_free_irq_states(LttvIRQState *states, guint n) |
| 1211 | { |
| 1212 | guint i; |
| 1213 | |
| 1214 | for(i=0; i<n; i++) { |
| 1215 | g_array_free(states[i].mode_stack, TRUE); |
| 1216 | } |
| 1217 | |
| 1218 | g_free(states); |
| 1219 | } |
| 1220 | |
| 1221 | static LttvSoftIRQState *lttv_state_copy_soft_irq_states(LttvSoftIRQState *states, guint n) |
| 1222 | { |
| 1223 | guint i; |
| 1224 | LttvSoftIRQState *retval; |
| 1225 | |
| 1226 | retval = g_malloc(n*sizeof(LttvSoftIRQState)); |
| 1227 | |
| 1228 | for(i=0; i<n; i++) { |
| 1229 | retval[i].running = states[i].running; |
| 1230 | } |
| 1231 | |
| 1232 | return retval; |
| 1233 | } |
| 1234 | |
| 1235 | static void lttv_state_free_soft_irq_states(LttvSoftIRQState *states, guint n) |
| 1236 | { |
| 1237 | g_free(states); |
| 1238 | } |
| 1239 | |
| 1240 | static LttvTrapState *lttv_state_copy_trap_states(LttvTrapState *states, guint n) |
| 1241 | { |
| 1242 | guint i; |
| 1243 | LttvTrapState *retval; |
| 1244 | |
| 1245 | retval = g_malloc(n*sizeof(LttvTrapState)); |
| 1246 | |
| 1247 | for(i=0; i<n; i++) { |
| 1248 | retval[i].running = states[i].running; |
| 1249 | } |
| 1250 | |
| 1251 | return retval; |
| 1252 | } |
| 1253 | |
| 1254 | static void lttv_state_free_trap_states(LttvTrapState *states, guint n) |
| 1255 | { |
| 1256 | g_free(states); |
| 1257 | } |
| 1258 | |
| 1259 | /* bdevstate stuff */ |
| 1260 | |
| 1261 | static LttvBdevState *get_hashed_bdevstate(LttvTraceState *ts, guint16 devcode) |
| 1262 | { |
| 1263 | gint devcode_gint = devcode; |
| 1264 | gpointer bdev = g_hash_table_lookup(ts->bdev_states, &devcode_gint); |
| 1265 | if(bdev == NULL) { |
| 1266 | LttvBdevState *bdevstate = g_malloc(sizeof(LttvBdevState)); |
| 1267 | bdevstate->mode_stack = g_array_new(FALSE, FALSE, sizeof(GQuark)); |
| 1268 | |
| 1269 | gint * key = g_malloc(sizeof(gint)); |
| 1270 | *key = devcode; |
| 1271 | g_hash_table_insert(ts->bdev_states, key, bdevstate); |
| 1272 | |
| 1273 | bdev = bdevstate; |
| 1274 | } |
| 1275 | |
| 1276 | return bdev; |
| 1277 | } |
| 1278 | |
| 1279 | static LttvBdevState *bdevstate_new(void) |
| 1280 | { |
| 1281 | LttvBdevState *retval; |
| 1282 | retval = g_malloc(sizeof(LttvBdevState)); |
| 1283 | retval->mode_stack = g_array_new(FALSE, FALSE, sizeof(GQuark)); |
| 1284 | |
| 1285 | return retval; |
| 1286 | } |
| 1287 | |
| 1288 | static void bdevstate_free(LttvBdevState *bds) |
| 1289 | { |
| 1290 | g_array_free(bds->mode_stack, TRUE); |
| 1291 | g_free(bds); |
| 1292 | } |
| 1293 | |
| 1294 | static void bdevstate_free_cb(gpointer key, gpointer value, gpointer user_data) |
| 1295 | { |
| 1296 | LttvBdevState *bds = (LttvBdevState *) value; |
| 1297 | |
| 1298 | bdevstate_free(bds); |
| 1299 | } |
| 1300 | |
| 1301 | static LttvBdevState *bdevstate_copy(LttvBdevState *bds) |
| 1302 | { |
| 1303 | LttvBdevState *retval; |
| 1304 | |
| 1305 | retval = bdevstate_new(); |
| 1306 | g_array_insert_vals(retval->mode_stack, 0, bds->mode_stack->data, bds->mode_stack->len); |
| 1307 | |
| 1308 | return retval; |
| 1309 | } |
| 1310 | |
| 1311 | static void insert_and_copy_bdev_state(gpointer k, gpointer v, gpointer u) |
| 1312 | { |
| 1313 | //GHashTable *ht = (GHashTable *)u; |
| 1314 | LttvBdevState *bds = (LttvBdevState *)v; |
| 1315 | LttvBdevState *newbds; |
| 1316 | |
| 1317 | newbds = bdevstate_copy(bds); |
| 1318 | |
| 1319 | g_hash_table_insert(u, k, newbds); |
| 1320 | } |
| 1321 | |
| 1322 | static GHashTable *lttv_state_copy_blkdev_hashtable(GHashTable *ht) |
| 1323 | { |
| 1324 | GHashTable *retval; |
| 1325 | |
| 1326 | retval = g_hash_table_new(g_int_hash, g_int_equal); |
| 1327 | |
| 1328 | g_hash_table_foreach(ht, insert_and_copy_bdev_state, retval); |
| 1329 | |
| 1330 | return retval; |
| 1331 | } |
| 1332 | |
| 1333 | /* Free a hashtable and the LttvBdevState structures its values |
| 1334 | * point to. */ |
| 1335 | |
| 1336 | static void lttv_state_free_blkdev_hashtable(GHashTable *ht) |
| 1337 | { |
| 1338 | g_hash_table_foreach(ht, bdevstate_free_cb, NULL); |
| 1339 | g_hash_table_destroy(ht); |
| 1340 | } |
| 1341 | |
| 1342 | /* The saved state for each trace contains a member "processes", which |
| 1343 | stores a copy of the process table, and a member "tracefiles" with |
| 1344 | one entry per tracefile. Each tracefile has a "process" member pointing |
| 1345 | to the current process and a "position" member storing the tracefile |
| 1346 | position (needed to seek to the current "next" event. */ |
| 1347 | |
| 1348 | static void state_save(LttvTraceState *self, LttvAttribute *container) |
| 1349 | { |
| 1350 | guint i, nb_tracefile, nb_cpus, nb_irqs, nb_soft_irqs, nb_traps; |
| 1351 | |
| 1352 | LttvTracefileState *tfcs; |
| 1353 | |
| 1354 | LttvAttribute *tracefiles_tree, *tracefile_tree; |
| 1355 | |
| 1356 | guint *running_process; |
| 1357 | |
| 1358 | LttvAttributeValue value; |
| 1359 | |
| 1360 | LttEventPosition *ep; |
| 1361 | |
| 1362 | tracefiles_tree = lttv_attribute_find_subdir(container, |
| 1363 | LTTV_STATE_TRACEFILES); |
| 1364 | |
| 1365 | value = lttv_attribute_add(container, LTTV_STATE_PROCESSES, |
| 1366 | LTTV_POINTER); |
| 1367 | *(value.v_pointer) = lttv_state_copy_process_table(self->processes); |
| 1368 | |
| 1369 | /* Add the currently running processes array */ |
| 1370 | nb_cpus = ltt_trace_get_num_cpu(self->parent.t); |
| 1371 | running_process = g_new(guint, nb_cpus); |
| 1372 | for(i=0;i<nb_cpus;i++) { |
| 1373 | running_process[i] = self->running_process[i]->pid; |
| 1374 | } |
| 1375 | value = lttv_attribute_add(container, LTTV_STATE_RUNNING_PROCESS, |
| 1376 | LTTV_POINTER); |
| 1377 | *(value.v_pointer) = running_process; |
| 1378 | |
| 1379 | g_info("State save"); |
| 1380 | |
| 1381 | nb_tracefile = self->parent.tracefiles->len; |
| 1382 | |
| 1383 | for(i = 0 ; i < nb_tracefile ; i++) { |
| 1384 | tfcs = |
| 1385 | LTTV_TRACEFILE_STATE(g_array_index(self->parent.tracefiles, |
| 1386 | LttvTracefileContext*, i)); |
| 1387 | tracefile_tree = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL); |
| 1388 | value = lttv_attribute_add(tracefiles_tree, i, |
| 1389 | LTTV_GOBJECT); |
| 1390 | *(value.v_gobject) = (GObject *)tracefile_tree; |
| 1391 | #if 0 |
| 1392 | value = lttv_attribute_add(tracefile_tree, LTTV_STATE_PROCESS, |
| 1393 | LTTV_UINT); |
| 1394 | *(value.v_uint) = tfcs->process->pid; |
| 1395 | #endif //0 |
| 1396 | value = lttv_attribute_add(tracefile_tree, LTTV_STATE_EVENT, |
| 1397 | LTTV_POINTER); |
| 1398 | /* Only save the position if the tfs has not infinite time. */ |
| 1399 | //if(!g_tree_lookup(self->parent.ts_context->pqueue, &tfcs->parent) |
| 1400 | // && current_tfcs != tfcs) { |
| 1401 | if(ltt_time_compare(tfcs->parent.timestamp, ltt_time_infinite) == 0) { |
| 1402 | *(value.v_pointer) = NULL; |
| 1403 | } else { |
| 1404 | LttEvent *e = ltt_tracefile_get_event(tfcs->parent.tf); |
| 1405 | ep = ltt_event_position_new(); |
| 1406 | ltt_event_position(e, ep); |
| 1407 | *(value.v_pointer) = ep; |
| 1408 | |
| 1409 | guint nb_block, offset; |
| 1410 | guint64 tsc; |
| 1411 | LttTracefile *tf; |
| 1412 | ltt_event_position_get(ep, &tf, &nb_block, &offset, &tsc); |
| 1413 | g_info("Block %u offset %u tsc %llu time %lu.%lu", nb_block, offset, |
| 1414 | tsc, |
| 1415 | tfcs->parent.timestamp.tv_sec, tfcs->parent.timestamp.tv_nsec); |
| 1416 | } |
| 1417 | } |
| 1418 | |
| 1419 | /* save the cpu state */ |
| 1420 | { |
| 1421 | value = lttv_attribute_add(container, LTTV_STATE_RESOURCE_CPUS_COUNT, |
| 1422 | LTTV_UINT); |
| 1423 | *(value.v_uint) = nb_cpus; |
| 1424 | |
| 1425 | value = lttv_attribute_add(container, LTTV_STATE_RESOURCE_CPUS, |
| 1426 | LTTV_POINTER); |
| 1427 | *(value.v_pointer) = lttv_state_copy_cpu_states(self->cpu_states, nb_cpus); |
| 1428 | } |
| 1429 | |
| 1430 | /* save the irq state */ |
| 1431 | nb_irqs = self->nb_irqs; |
| 1432 | { |
| 1433 | value = lttv_attribute_add(container, LTTV_STATE_RESOURCE_IRQS, |
| 1434 | LTTV_POINTER); |
| 1435 | *(value.v_pointer) = lttv_state_copy_irq_states(self->irq_states, nb_irqs); |
| 1436 | } |
| 1437 | |
| 1438 | /* save the soft irq state */ |
| 1439 | nb_soft_irqs = self->nb_soft_irqs; |
| 1440 | { |
| 1441 | value = lttv_attribute_add(container, LTTV_STATE_RESOURCE_SOFT_IRQS, |
| 1442 | LTTV_POINTER); |
| 1443 | *(value.v_pointer) = lttv_state_copy_soft_irq_states(self->soft_irq_states, nb_soft_irqs); |
| 1444 | } |
| 1445 | |
| 1446 | /* save the trap state */ |
| 1447 | nb_traps = self->nb_traps; |
| 1448 | { |
| 1449 | value = lttv_attribute_add(container, LTTV_STATE_RESOURCE_TRAPS, |
| 1450 | LTTV_POINTER); |
| 1451 | *(value.v_pointer) = lttv_state_copy_trap_states(self->trap_states, nb_traps); |
| 1452 | } |
| 1453 | |
| 1454 | /* save the blkdev states */ |
| 1455 | value = lttv_attribute_add(container, LTTV_STATE_RESOURCE_BLKDEVS, |
| 1456 | LTTV_POINTER); |
| 1457 | *(value.v_pointer) = lttv_state_copy_blkdev_hashtable(self->bdev_states); |
| 1458 | } |
| 1459 | |
| 1460 | |
| 1461 | static void state_restore(LttvTraceState *self, LttvAttribute *container) |
| 1462 | { |
| 1463 | guint i, nb_tracefile, pid, nb_cpus, nb_irqs, nb_soft_irqs, nb_traps; |
| 1464 | |
| 1465 | LttvTracefileState *tfcs; |
| 1466 | |
| 1467 | LttvAttribute *tracefiles_tree, *tracefile_tree; |
| 1468 | |
| 1469 | guint *running_process; |
| 1470 | |
| 1471 | LttvAttributeType type; |
| 1472 | |
| 1473 | LttvAttributeValue value; |
| 1474 | |
| 1475 | LttvAttributeName name; |
| 1476 | |
| 1477 | gboolean is_named; |
| 1478 | |
| 1479 | LttEventPosition *ep; |
| 1480 | |
| 1481 | LttvTracesetContext *tsc = self->parent.ts_context; |
| 1482 | |
| 1483 | tracefiles_tree = lttv_attribute_find_subdir(container, |
| 1484 | LTTV_STATE_TRACEFILES); |
| 1485 | |
| 1486 | type = lttv_attribute_get_by_name(container, LTTV_STATE_PROCESSES, |
| 1487 | &value); |
| 1488 | g_assert(type == LTTV_POINTER); |
| 1489 | lttv_state_free_process_table(self->processes); |
| 1490 | self->processes = lttv_state_copy_process_table(*(value.v_pointer)); |
| 1491 | |
| 1492 | /* Add the currently running processes array */ |
| 1493 | nb_cpus = ltt_trace_get_num_cpu(self->parent.t); |
| 1494 | type = lttv_attribute_get_by_name(container, LTTV_STATE_RUNNING_PROCESS, |
| 1495 | &value); |
| 1496 | g_assert(type == LTTV_POINTER); |
| 1497 | running_process = *(value.v_pointer); |
| 1498 | for(i=0;i<nb_cpus;i++) { |
| 1499 | pid = running_process[i]; |
| 1500 | self->running_process[i] = lttv_state_find_process(self, i, pid); |
| 1501 | g_assert(self->running_process[i] != NULL); |
| 1502 | } |
| 1503 | |
| 1504 | nb_tracefile = self->parent.tracefiles->len; |
| 1505 | |
| 1506 | //g_tree_destroy(tsc->pqueue); |
| 1507 | //tsc->pqueue = g_tree_new(compare_tracefile); |
| 1508 | |
| 1509 | /* restore cpu resource states */ |
| 1510 | type = lttv_attribute_get_by_name(container, LTTV_STATE_RESOURCE_CPUS, &value); |
| 1511 | g_assert(type == LTTV_POINTER); |
| 1512 | lttv_state_free_cpu_states(self->cpu_states, nb_cpus); |
| 1513 | self->cpu_states = lttv_state_copy_cpu_states(*(value.v_pointer), nb_cpus); |
| 1514 | |
| 1515 | /* restore irq resource states */ |
| 1516 | nb_irqs = self->nb_irqs; |
| 1517 | type = lttv_attribute_get_by_name(container, LTTV_STATE_RESOURCE_IRQS, &value); |
| 1518 | g_assert(type == LTTV_POINTER); |
| 1519 | lttv_state_free_irq_states(self->irq_states, nb_irqs); |
| 1520 | self->irq_states = lttv_state_copy_irq_states(*(value.v_pointer), nb_irqs); |
| 1521 | |
| 1522 | /* restore soft irq resource states */ |
| 1523 | nb_soft_irqs = self->nb_soft_irqs; |
| 1524 | type = lttv_attribute_get_by_name(container, LTTV_STATE_RESOURCE_SOFT_IRQS, &value); |
| 1525 | g_assert(type == LTTV_POINTER); |
| 1526 | lttv_state_free_soft_irq_states(self->soft_irq_states, nb_soft_irqs); |
| 1527 | self->soft_irq_states = lttv_state_copy_soft_irq_states(*(value.v_pointer), nb_soft_irqs); |
| 1528 | |
| 1529 | /* restore trap resource states */ |
| 1530 | nb_traps = self->nb_traps; |
| 1531 | type = lttv_attribute_get_by_name(container, LTTV_STATE_RESOURCE_TRAPS, &value); |
| 1532 | g_assert(type == LTTV_POINTER); |
| 1533 | lttv_state_free_trap_states(self->trap_states, nb_traps); |
| 1534 | self->trap_states = lttv_state_copy_trap_states(*(value.v_pointer), nb_traps); |
| 1535 | |
| 1536 | /* restore the blkdev states */ |
| 1537 | type = lttv_attribute_get_by_name(container, LTTV_STATE_RESOURCE_BLKDEVS, &value); |
| 1538 | g_assert(type == LTTV_POINTER); |
| 1539 | lttv_state_free_blkdev_hashtable(self->bdev_states); |
| 1540 | self->bdev_states = lttv_state_copy_blkdev_hashtable(*(value.v_pointer)); |
| 1541 | |
| 1542 | for(i = 0 ; i < nb_tracefile ; i++) { |
| 1543 | tfcs = |
| 1544 | LTTV_TRACEFILE_STATE(g_array_index(self->parent.tracefiles, |
| 1545 | LttvTracefileContext*, i)); |
| 1546 | type = lttv_attribute_get(tracefiles_tree, i, &name, &value, &is_named); |
| 1547 | g_assert(type == LTTV_GOBJECT); |
| 1548 | tracefile_tree = *((LttvAttribute **)(value.v_gobject)); |
| 1549 | #if 0 |
| 1550 | type = lttv_attribute_get_by_name(tracefile_tree, LTTV_STATE_PROCESS, |
| 1551 | &value); |
| 1552 | g_assert(type == LTTV_UINT); |
| 1553 | pid = *(value.v_uint); |
| 1554 | tfcs->process = lttv_state_find_process_or_create(tfcs, pid); |
| 1555 | #endif //0 |
| 1556 | type = lttv_attribute_get_by_name(tracefile_tree, LTTV_STATE_EVENT, |
| 1557 | &value); |
| 1558 | g_assert(type == LTTV_POINTER); |
| 1559 | //g_assert(*(value.v_pointer) != NULL); |
| 1560 | ep = *(value.v_pointer); |
| 1561 | g_assert(tfcs->parent.t_context != NULL); |
| 1562 | |
| 1563 | tfcs->cpu_state = &self->cpu_states[tfcs->cpu]; |
| 1564 | |
| 1565 | LttvTracefileContext *tfc = LTTV_TRACEFILE_CONTEXT(tfcs); |
| 1566 | g_tree_remove(tsc->pqueue, tfc); |
| 1567 | |
| 1568 | if(ep != NULL) { |
| 1569 | g_assert(ltt_tracefile_seek_position(tfc->tf, ep) == 0); |
| 1570 | tfc->timestamp = ltt_event_time(ltt_tracefile_get_event(tfc->tf)); |
| 1571 | g_assert(ltt_time_compare(tfc->timestamp, ltt_time_infinite) != 0); |
| 1572 | g_tree_insert(tsc->pqueue, tfc, tfc); |
| 1573 | g_info("Restoring state for a tf at time %lu.%lu", tfc->timestamp.tv_sec, tfc->timestamp.tv_nsec); |
| 1574 | } else { |
| 1575 | tfc->timestamp = ltt_time_infinite; |
| 1576 | } |
| 1577 | } |
| 1578 | } |
| 1579 | |
| 1580 | |
| 1581 | static void state_saved_free(LttvTraceState *self, LttvAttribute *container) |
| 1582 | { |
| 1583 | guint i, nb_tracefile, nb_cpus, nb_irqs; |
| 1584 | |
| 1585 | LttvTracefileState *tfcs; |
| 1586 | |
| 1587 | LttvAttribute *tracefiles_tree, *tracefile_tree; |
| 1588 | |
| 1589 | guint *running_process; |
| 1590 | |
| 1591 | LttvAttributeType type; |
| 1592 | |
| 1593 | LttvAttributeValue value; |
| 1594 | |
| 1595 | LttvAttributeName name; |
| 1596 | |
| 1597 | gboolean is_named; |
| 1598 | |
| 1599 | tracefiles_tree = lttv_attribute_find_subdir(container, |
| 1600 | LTTV_STATE_TRACEFILES); |
| 1601 | g_object_ref(G_OBJECT(tracefiles_tree)); |
| 1602 | lttv_attribute_remove_by_name(container, LTTV_STATE_TRACEFILES); |
| 1603 | |
| 1604 | type = lttv_attribute_get_by_name(container, LTTV_STATE_PROCESSES, |
| 1605 | &value); |
| 1606 | g_assert(type == LTTV_POINTER); |
| 1607 | lttv_state_free_process_table(*(value.v_pointer)); |
| 1608 | *(value.v_pointer) = NULL; |
| 1609 | lttv_attribute_remove_by_name(container, LTTV_STATE_PROCESSES); |
| 1610 | |
| 1611 | /* Free running processes array */ |
| 1612 | type = lttv_attribute_get_by_name(container, LTTV_STATE_RUNNING_PROCESS, |
| 1613 | &value); |
| 1614 | g_assert(type == LTTV_POINTER); |
| 1615 | running_process = *(value.v_pointer); |
| 1616 | g_free(running_process); |
| 1617 | |
| 1618 | /* free cpu resource states */ |
| 1619 | type = lttv_attribute_get_by_name(container, LTTV_STATE_RESOURCE_CPUS_COUNT, &value); |
| 1620 | g_assert(type == LTTV_UINT); |
| 1621 | nb_cpus = *value.v_uint; |
| 1622 | type = lttv_attribute_get_by_name(container, LTTV_STATE_RESOURCE_CPUS, &value); |
| 1623 | g_assert(type == LTTV_POINTER); |
| 1624 | lttv_state_free_cpu_states(*(value.v_pointer), nb_cpus); |
| 1625 | |
| 1626 | /* free irq resource states */ |
| 1627 | nb_irqs = self->nb_irqs; |
| 1628 | type = lttv_attribute_get_by_name(container, LTTV_STATE_RESOURCE_IRQS, &value); |
| 1629 | g_assert(type == LTTV_POINTER); |
| 1630 | lttv_state_free_irq_states(*(value.v_pointer), nb_irqs); |
| 1631 | |
| 1632 | /* free the blkdev states */ |
| 1633 | type = lttv_attribute_get_by_name(container, LTTV_STATE_RESOURCE_BLKDEVS, &value); |
| 1634 | g_assert(type == LTTV_POINTER); |
| 1635 | lttv_state_free_blkdev_hashtable(*(value.v_pointer)); |
| 1636 | |
| 1637 | nb_tracefile = self->parent.tracefiles->len; |
| 1638 | |
| 1639 | for(i = 0 ; i < nb_tracefile ; i++) { |
| 1640 | tfcs = |
| 1641 | LTTV_TRACEFILE_STATE(g_array_index(self->parent.tracefiles, |
| 1642 | LttvTracefileContext*, i)); |
| 1643 | type = lttv_attribute_get(tracefiles_tree, i, &name, &value, &is_named); |
| 1644 | g_assert(type == LTTV_GOBJECT); |
| 1645 | tracefile_tree = *((LttvAttribute **)(value.v_gobject)); |
| 1646 | |
| 1647 | type = lttv_attribute_get_by_name(tracefile_tree, LTTV_STATE_EVENT, |
| 1648 | &value); |
| 1649 | g_assert(type == LTTV_POINTER); |
| 1650 | if(*(value.v_pointer) != NULL) g_free(*(value.v_pointer)); |
| 1651 | } |
| 1652 | g_object_unref(G_OBJECT(tracefiles_tree)); |
| 1653 | } |
| 1654 | |
| 1655 | |
| 1656 | static void free_saved_state(LttvTraceState *self) |
| 1657 | { |
| 1658 | guint i, nb; |
| 1659 | |
| 1660 | LttvAttributeType type; |
| 1661 | |
| 1662 | LttvAttributeValue value; |
| 1663 | |
| 1664 | LttvAttributeName name; |
| 1665 | |
| 1666 | gboolean is_named; |
| 1667 | |
| 1668 | LttvAttribute *saved_states; |
| 1669 | |
| 1670 | saved_states = lttv_attribute_find_subdir(self->parent.t_a, |
| 1671 | LTTV_STATE_SAVED_STATES); |
| 1672 | |
| 1673 | nb = lttv_attribute_get_number(saved_states); |
| 1674 | for(i = 0 ; i < nb ; i++) { |
| 1675 | type = lttv_attribute_get(saved_states, i, &name, &value, &is_named); |
| 1676 | g_assert(type == LTTV_GOBJECT); |
| 1677 | state_saved_free(self, *((LttvAttribute **)value.v_gobject)); |
| 1678 | } |
| 1679 | |
| 1680 | lttv_attribute_remove_by_name(self->parent.t_a, LTTV_STATE_SAVED_STATES); |
| 1681 | } |
| 1682 | |
| 1683 | |
| 1684 | static void |
| 1685 | create_max_time(LttvTraceState *tcs) |
| 1686 | { |
| 1687 | LttvAttributeValue v; |
| 1688 | |
| 1689 | lttv_attribute_find(tcs->parent.t_a, LTTV_STATE_SAVED_STATES_TIME, |
| 1690 | LTTV_POINTER, &v); |
| 1691 | g_assert(*(v.v_pointer) == NULL); |
| 1692 | *(v.v_pointer) = g_new(LttTime,1); |
| 1693 | *((LttTime *)*(v.v_pointer)) = ltt_time_zero; |
| 1694 | } |
| 1695 | |
| 1696 | |
| 1697 | static void |
| 1698 | get_max_time(LttvTraceState *tcs) |
| 1699 | { |
| 1700 | LttvAttributeValue v; |
| 1701 | |
| 1702 | lttv_attribute_find(tcs->parent.t_a, LTTV_STATE_SAVED_STATES_TIME, |
| 1703 | LTTV_POINTER, &v); |
| 1704 | g_assert(*(v.v_pointer) != NULL); |
| 1705 | tcs->max_time_state_recomputed_in_seek = (LttTime *)*(v.v_pointer); |
| 1706 | } |
| 1707 | |
| 1708 | |
| 1709 | static void |
| 1710 | free_max_time(LttvTraceState *tcs) |
| 1711 | { |
| 1712 | LttvAttributeValue v; |
| 1713 | |
| 1714 | lttv_attribute_find(tcs->parent.t_a, LTTV_STATE_SAVED_STATES_TIME, |
| 1715 | LTTV_POINTER, &v); |
| 1716 | g_free(*(v.v_pointer)); |
| 1717 | *(v.v_pointer) = NULL; |
| 1718 | } |
| 1719 | |
| 1720 | |
| 1721 | typedef struct _LttvNameTables { |
| 1722 | // FIXME GQuark *eventtype_names; |
| 1723 | GQuark *syscall_names; |
| 1724 | guint nb_syscalls; |
| 1725 | GQuark *trap_names; |
| 1726 | guint nb_traps; |
| 1727 | GQuark *irq_names; |
| 1728 | guint nb_irqs; |
| 1729 | GQuark *soft_irq_names; |
| 1730 | guint nb_softirqs; |
| 1731 | } LttvNameTables; |
| 1732 | |
| 1733 | |
| 1734 | static void |
| 1735 | create_name_tables(LttvTraceState *tcs) |
| 1736 | { |
| 1737 | int i; |
| 1738 | |
| 1739 | GString *fe_name = g_string_new(""); |
| 1740 | |
| 1741 | LttvNameTables *name_tables = g_new(LttvNameTables, 1); |
| 1742 | |
| 1743 | LttvAttributeValue v; |
| 1744 | |
| 1745 | GArray *hooks; |
| 1746 | |
| 1747 | lttv_attribute_find(tcs->parent.t_a, LTTV_STATE_NAME_TABLES, |
| 1748 | LTTV_POINTER, &v); |
| 1749 | g_assert(*(v.v_pointer) == NULL); |
| 1750 | *(v.v_pointer) = name_tables; |
| 1751 | |
| 1752 | hooks = g_array_sized_new(FALSE, FALSE, sizeof(LttvTraceHook), 1); |
| 1753 | |
| 1754 | if(!lttv_trace_find_hook(tcs->parent.t, |
| 1755 | LTT_FACILITY_KERNEL_ARCH, |
| 1756 | LTT_EVENT_SYSCALL_ENTRY, |
| 1757 | FIELD_ARRAY(LTT_FIELD_SYSCALL_ID), |
| 1758 | NULL, NULL, &hooks)) { |
| 1759 | |
| 1760 | // th = lttv_trace_hook_get_first(&th); |
| 1761 | // |
| 1762 | // t = ltt_field_type(lttv_trace_get_hook_field(th, 0)); |
| 1763 | // nb = ltt_type_element_number(t); |
| 1764 | // |
| 1765 | // name_tables->syscall_names = g_new(GQuark, nb); |
| 1766 | // name_tables->nb_syscalls = nb; |
| 1767 | // |
| 1768 | // for(i = 0 ; i < nb ; i++) { |
| 1769 | // name_tables->syscall_names[i] = ltt_enum_string_get(t, i); |
| 1770 | // if(!name_tables->syscall_names[i]) { |
| 1771 | // GString *string = g_string_new(""); |
| 1772 | // g_string_printf(string, "syscall %u", i); |
| 1773 | // name_tables->syscall_names[i] = g_quark_from_string(string->str); |
| 1774 | // g_string_free(string, TRUE); |
| 1775 | // } |
| 1776 | // } |
| 1777 | |
| 1778 | name_tables->nb_syscalls = 256; |
| 1779 | name_tables->syscall_names = g_new(GQuark, 256); |
| 1780 | for(i = 0 ; i < 256 ; i++) { |
| 1781 | g_string_printf(fe_name, "syscall %d", i); |
| 1782 | name_tables->syscall_names[i] = g_quark_from_string(fe_name->str); |
| 1783 | } |
| 1784 | } else { |
| 1785 | name_tables->syscall_names = NULL; |
| 1786 | name_tables->nb_syscalls = 0; |
| 1787 | } |
| 1788 | lttv_trace_hook_remove_all(&hooks); |
| 1789 | |
| 1790 | if(!lttv_trace_find_hook(tcs->parent.t, |
| 1791 | LTT_FACILITY_KERNEL_ARCH, |
| 1792 | LTT_EVENT_TRAP_ENTRY, |
| 1793 | FIELD_ARRAY(LTT_FIELD_TRAP_ID), |
| 1794 | NULL, NULL, &hooks)) { |
| 1795 | |
| 1796 | // th = lttv_trace_hook_get_first(&th); |
| 1797 | // |
| 1798 | // t = ltt_field_type(lttv_trace_get_hook_field(th, 0)); |
| 1799 | // //nb = ltt_type_element_number(t); |
| 1800 | // |
| 1801 | // name_tables->trap_names = g_new(GQuark, nb); |
| 1802 | // for(i = 0 ; i < nb ; i++) { |
| 1803 | // name_tables->trap_names[i] = g_quark_from_string( |
| 1804 | // ltt_enum_string_get(t, i)); |
| 1805 | // } |
| 1806 | |
| 1807 | name_tables->nb_traps = 256; |
| 1808 | name_tables->trap_names = g_new(GQuark, 256); |
| 1809 | for(i = 0 ; i < 256 ; i++) { |
| 1810 | g_string_printf(fe_name, "trap %d", i); |
| 1811 | name_tables->trap_names[i] = g_quark_from_string(fe_name->str); |
| 1812 | } |
| 1813 | } else { |
| 1814 | name_tables->trap_names = NULL; |
| 1815 | name_tables->nb_traps = 0; |
| 1816 | } |
| 1817 | lttv_trace_hook_remove_all(&hooks); |
| 1818 | |
| 1819 | if(!lttv_trace_find_hook(tcs->parent.t, |
| 1820 | LTT_FACILITY_KERNEL, |
| 1821 | LTT_EVENT_IRQ_ENTRY, |
| 1822 | FIELD_ARRAY(LTT_FIELD_IRQ_ID), |
| 1823 | NULL, NULL, &hooks)) { |
| 1824 | |
| 1825 | /* |
| 1826 | name_tables->irq_names = g_new(GQuark, nb); |
| 1827 | for(i = 0 ; i < nb ; i++) { |
| 1828 | name_tables->irq_names[i] = g_quark_from_string(ltt_enum_string_get(t, i)); |
| 1829 | } |
| 1830 | */ |
| 1831 | |
| 1832 | name_tables->nb_irqs = 256; |
| 1833 | name_tables->irq_names = g_new(GQuark, 256); |
| 1834 | for(i = 0 ; i < 256 ; i++) { |
| 1835 | g_string_printf(fe_name, "irq %d", i); |
| 1836 | name_tables->irq_names[i] = g_quark_from_string(fe_name->str); |
| 1837 | } |
| 1838 | } else { |
| 1839 | name_tables->nb_irqs = 0; |
| 1840 | name_tables->irq_names = NULL; |
| 1841 | } |
| 1842 | lttv_trace_hook_remove_all(&hooks); |
| 1843 | /* |
| 1844 | name_tables->soft_irq_names = g_new(GQuark, nb); |
| 1845 | for(i = 0 ; i < nb ; i++) { |
| 1846 | name_tables->soft_irq_names[i] = g_quark_from_string(ltt_enum_string_get(t, i)); |
| 1847 | } |
| 1848 | */ |
| 1849 | |
| 1850 | /* the kernel is limited to 32 statically defined softirqs */ |
| 1851 | name_tables->nb_softirqs = 32; |
| 1852 | name_tables->soft_irq_names = g_new(GQuark, name_tables->nb_softirqs); |
| 1853 | for(i = 0 ; i < name_tables->nb_softirqs ; i++) { |
| 1854 | g_string_printf(fe_name, "softirq %d", i); |
| 1855 | name_tables->soft_irq_names[i] = g_quark_from_string(fe_name->str); |
| 1856 | } |
| 1857 | g_array_free(hooks, TRUE); |
| 1858 | |
| 1859 | g_string_free(fe_name, TRUE); |
| 1860 | } |
| 1861 | |
| 1862 | |
| 1863 | static void |
| 1864 | get_name_tables(LttvTraceState *tcs) |
| 1865 | { |
| 1866 | LttvNameTables *name_tables; |
| 1867 | |
| 1868 | LttvAttributeValue v; |
| 1869 | |
| 1870 | lttv_attribute_find(tcs->parent.t_a, LTTV_STATE_NAME_TABLES, |
| 1871 | LTTV_POINTER, &v); |
| 1872 | g_assert(*(v.v_pointer) != NULL); |
| 1873 | name_tables = (LttvNameTables *)*(v.v_pointer); |
| 1874 | //tcs->eventtype_names = name_tables->eventtype_names; |
| 1875 | tcs->syscall_names = name_tables->syscall_names; |
| 1876 | tcs->nb_syscalls = name_tables->nb_syscalls; |
| 1877 | tcs->trap_names = name_tables->trap_names; |
| 1878 | tcs->nb_traps = name_tables->nb_traps; |
| 1879 | tcs->irq_names = name_tables->irq_names; |
| 1880 | tcs->soft_irq_names = name_tables->soft_irq_names; |
| 1881 | tcs->nb_irqs = name_tables->nb_irqs; |
| 1882 | tcs->nb_soft_irqs = name_tables->nb_softirqs; |
| 1883 | } |
| 1884 | |
| 1885 | |
| 1886 | static void |
| 1887 | free_name_tables(LttvTraceState *tcs) |
| 1888 | { |
| 1889 | LttvNameTables *name_tables; |
| 1890 | |
| 1891 | LttvAttributeValue v; |
| 1892 | |
| 1893 | lttv_attribute_find(tcs->parent.t_a, LTTV_STATE_NAME_TABLES, |
| 1894 | LTTV_POINTER, &v); |
| 1895 | name_tables = (LttvNameTables *)*(v.v_pointer); |
| 1896 | *(v.v_pointer) = NULL; |
| 1897 | |
| 1898 | // g_free(name_tables->eventtype_names); |
| 1899 | if(name_tables->syscall_names) g_free(name_tables->syscall_names); |
| 1900 | if(name_tables->trap_names) g_free(name_tables->trap_names); |
| 1901 | if(name_tables->irq_names) g_free(name_tables->irq_names); |
| 1902 | if(name_tables->soft_irq_names) g_free(name_tables->soft_irq_names); |
| 1903 | if(name_tables) g_free(name_tables); |
| 1904 | } |
| 1905 | |
| 1906 | #ifdef HASH_TABLE_DEBUG |
| 1907 | |
| 1908 | static void test_process(gpointer key, gpointer value, gpointer user_data) |
| 1909 | { |
| 1910 | LttvProcessState *process = (LttvProcessState *)value; |
| 1911 | |
| 1912 | /* Test for process corruption */ |
| 1913 | guint stack_len = process->execution_stack->len; |
| 1914 | } |
| 1915 | |
| 1916 | static void hash_table_check(GHashTable *table) |
| 1917 | { |
| 1918 | g_hash_table_foreach(table, test_process, NULL); |
| 1919 | } |
| 1920 | |
| 1921 | |
| 1922 | #endif |
| 1923 | |
| 1924 | /* clears the stack and sets the state passed as argument */ |
| 1925 | static void cpu_set_base_mode(LttvCPUState *cpust, LttvCPUMode state) |
| 1926 | { |
| 1927 | g_array_set_size(cpust->mode_stack, 1); |
| 1928 | ((GQuark *)cpust->mode_stack->data)[0] = state; |
| 1929 | } |
| 1930 | |
| 1931 | static void cpu_push_mode(LttvCPUState *cpust, LttvCPUMode state) |
| 1932 | { |
| 1933 | g_array_set_size(cpust->mode_stack, cpust->mode_stack->len + 1); |
| 1934 | ((GQuark *)cpust->mode_stack->data)[cpust->mode_stack->len - 1] = state; |
| 1935 | } |
| 1936 | |
| 1937 | static void cpu_pop_mode(LttvCPUState *cpust) |
| 1938 | { |
| 1939 | if(cpust->mode_stack->len <= 1) |
| 1940 | cpu_set_base_mode(cpust, LTTV_CPU_UNKNOWN); |
| 1941 | else |
| 1942 | g_array_set_size(cpust->mode_stack, cpust->mode_stack->len - 1); |
| 1943 | } |
| 1944 | |
| 1945 | /* clears the stack and sets the state passed as argument */ |
| 1946 | static void bdev_set_base_mode(LttvBdevState *bdevst, LttvBdevMode state) |
| 1947 | { |
| 1948 | g_array_set_size(bdevst->mode_stack, 1); |
| 1949 | ((GQuark *)bdevst->mode_stack->data)[0] = state; |
| 1950 | } |
| 1951 | |
| 1952 | static void bdev_push_mode(LttvBdevState *bdevst, LttvBdevMode state) |
| 1953 | { |
| 1954 | g_array_set_size(bdevst->mode_stack, bdevst->mode_stack->len + 1); |
| 1955 | ((GQuark *)bdevst->mode_stack->data)[bdevst->mode_stack->len - 1] = state; |
| 1956 | } |
| 1957 | |
| 1958 | static void bdev_pop_mode(LttvBdevState *bdevst) |
| 1959 | { |
| 1960 | if(bdevst->mode_stack->len <= 1) |
| 1961 | bdev_set_base_mode(bdevst, LTTV_BDEV_UNKNOWN); |
| 1962 | else |
| 1963 | g_array_set_size(bdevst->mode_stack, bdevst->mode_stack->len - 1); |
| 1964 | } |
| 1965 | |
| 1966 | static void irq_set_base_mode(LttvIRQState *irqst, LttvIRQMode state) |
| 1967 | { |
| 1968 | g_array_set_size(irqst->mode_stack, 1); |
| 1969 | ((GQuark *)irqst->mode_stack->data)[0] = state; |
| 1970 | } |
| 1971 | |
| 1972 | static void irq_push_mode(LttvIRQState *irqst, LttvIRQMode state) |
| 1973 | { |
| 1974 | g_array_set_size(irqst->mode_stack, irqst->mode_stack->len + 1); |
| 1975 | ((GQuark *)irqst->mode_stack->data)[irqst->mode_stack->len - 1] = state; |
| 1976 | } |
| 1977 | |
| 1978 | static void irq_pop_mode(LttvIRQState *irqst) |
| 1979 | { |
| 1980 | if(irqst->mode_stack->len <= 1) |
| 1981 | irq_set_base_mode(irqst, LTTV_IRQ_UNKNOWN); |
| 1982 | else |
| 1983 | g_array_set_size(irqst->mode_stack, irqst->mode_stack->len - 1); |
| 1984 | } |
| 1985 | |
| 1986 | static void push_state(LttvTracefileState *tfs, LttvExecutionMode t, |
| 1987 | guint state_id) |
| 1988 | { |
| 1989 | LttvExecutionState *es; |
| 1990 | |
| 1991 | LttvTraceState *ts = (LttvTraceState*)tfs->parent.t_context; |
| 1992 | guint cpu = tfs->cpu; |
| 1993 | |
| 1994 | #ifdef HASH_TABLE_DEBUG |
| 1995 | hash_table_check(ts->processes); |
| 1996 | #endif |
| 1997 | LttvProcessState *process = ts->running_process[cpu]; |
| 1998 | |
| 1999 | guint depth = process->execution_stack->len; |
| 2000 | |
| 2001 | process->execution_stack = |
| 2002 | g_array_set_size(process->execution_stack, depth + 1); |
| 2003 | /* Keep in sync */ |
| 2004 | process->state = |
| 2005 | &g_array_index(process->execution_stack, LttvExecutionState, depth - 1); |
| 2006 | |
| 2007 | es = &g_array_index(process->execution_stack, LttvExecutionState, depth); |
| 2008 | es->t = t; |
| 2009 | es->n = state_id; |
| 2010 | es->entry = es->change = tfs->parent.timestamp; |
| 2011 | es->cum_cpu_time = ltt_time_zero; |
| 2012 | es->s = process->state->s; |
| 2013 | process->state = es; |
| 2014 | } |
| 2015 | |
| 2016 | /* pop state |
| 2017 | * return 1 when empty, else 0 */ |
| 2018 | int lttv_state_pop_state_cleanup(LttvProcessState *process, |
| 2019 | LttvTracefileState *tfs) |
| 2020 | { |
| 2021 | guint depth = process->execution_stack->len; |
| 2022 | |
| 2023 | if(depth == 1){ |
| 2024 | return 1; |
| 2025 | } |
| 2026 | |
| 2027 | process->execution_stack = |
| 2028 | g_array_set_size(process->execution_stack, depth - 1); |
| 2029 | process->state = &g_array_index(process->execution_stack, LttvExecutionState, |
| 2030 | depth - 2); |
| 2031 | process->state->change = tfs->parent.timestamp; |
| 2032 | |
| 2033 | return 0; |
| 2034 | } |
| 2035 | |
| 2036 | static void pop_state(LttvTracefileState *tfs, LttvExecutionMode t) |
| 2037 | { |
| 2038 | guint cpu = tfs->cpu; |
| 2039 | LttvTraceState *ts = (LttvTraceState*)tfs->parent.t_context; |
| 2040 | LttvProcessState *process = ts->running_process[cpu]; |
| 2041 | |
| 2042 | guint depth = process->execution_stack->len; |
| 2043 | |
| 2044 | if(process->state->t != t){ |
| 2045 | g_info("Different execution mode type (%lu.%09lu): ignore it\n", |
| 2046 | tfs->parent.timestamp.tv_sec, tfs->parent.timestamp.tv_nsec); |
| 2047 | g_info("process state has %s when pop_int is %s\n", |
| 2048 | g_quark_to_string(process->state->t), |
| 2049 | g_quark_to_string(t)); |
| 2050 | g_info("{ %u, %u, %s, %s, %s }\n", |
| 2051 | process->pid, |
| 2052 | process->ppid, |
| 2053 | g_quark_to_string(process->name), |
| 2054 | g_quark_to_string(process->brand), |
| 2055 | g_quark_to_string(process->state->s)); |
| 2056 | return; |
| 2057 | } |
| 2058 | |
| 2059 | if(depth == 1){ |
| 2060 | g_info("Trying to pop last state on stack (%lu.%09lu): ignore it\n", |
| 2061 | tfs->parent.timestamp.tv_sec, tfs->parent.timestamp.tv_nsec); |
| 2062 | return; |
| 2063 | } |
| 2064 | |
| 2065 | process->execution_stack = |
| 2066 | g_array_set_size(process->execution_stack, depth - 1); |
| 2067 | process->state = &g_array_index(process->execution_stack, LttvExecutionState, |
| 2068 | depth - 2); |
| 2069 | process->state->change = tfs->parent.timestamp; |
| 2070 | } |
| 2071 | |
| 2072 | struct search_result { |
| 2073 | const LttTime *time; /* Requested time */ |
| 2074 | LttTime *best; /* Best result */ |
| 2075 | }; |
| 2076 | |
| 2077 | static gint search_usertrace(gconstpointer a, gconstpointer b) |
| 2078 | { |
| 2079 | const LttTime *elem_time = (const LttTime*)a; |
| 2080 | /* Explicit non const cast */ |
| 2081 | struct search_result *res = (struct search_result *)b; |
| 2082 | |
| 2083 | if(ltt_time_compare(*elem_time, *(res->time)) < 0) { |
| 2084 | /* The usertrace was created before the schedchange */ |
| 2085 | /* Get larger keys */ |
| 2086 | return 1; |
| 2087 | } else if(ltt_time_compare(*elem_time, *(res->time)) >= 0) { |
| 2088 | /* The usertrace was created after the schedchange time */ |
| 2089 | /* Get smaller keys */ |
| 2090 | if(res->best) { |
| 2091 | if(ltt_time_compare(*elem_time, *res->best) < 0) { |
| 2092 | res->best = (LttTime *)elem_time; |
| 2093 | } |
| 2094 | } else { |
| 2095 | res->best = (LttTime *)elem_time; |
| 2096 | } |
| 2097 | return -1; |
| 2098 | } |
| 2099 | return 0; |
| 2100 | } |
| 2101 | |
| 2102 | static LttvTracefileState *ltt_state_usertrace_find(LttvTraceState *tcs, |
| 2103 | guint pid, const LttTime *timestamp) |
| 2104 | { |
| 2105 | LttvTracefileState *tfs = NULL; |
| 2106 | struct search_result res; |
| 2107 | /* Find the usertrace associated with a pid and time interval. |
| 2108 | * Search in the usertraces by PID (within a hash) and then, for each |
| 2109 | * corresponding element of the array, find the first one with creation |
| 2110 | * timestamp the lowest, but higher or equal to "timestamp". */ |
| 2111 | res.time = timestamp; |
| 2112 | res.best = NULL; |
| 2113 | GTree *usertrace_tree = g_hash_table_lookup(tcs->usertraces, (gpointer)pid); |
| 2114 | if(usertrace_tree) { |
| 2115 | g_tree_search(usertrace_tree, search_usertrace, &res); |
| 2116 | if(res.best) |
| 2117 | tfs = g_tree_lookup(usertrace_tree, res.best); |
| 2118 | } |
| 2119 | |
| 2120 | return tfs; |
| 2121 | } |
| 2122 | |
| 2123 | |
| 2124 | LttvProcessState * |
| 2125 | lttv_state_create_process(LttvTraceState *tcs, LttvProcessState *parent, |
| 2126 | guint cpu, guint pid, guint tgid, GQuark name, const LttTime *timestamp) |
| 2127 | { |
| 2128 | LttvProcessState *process = g_new(LttvProcessState, 1); |
| 2129 | |
| 2130 | LttvExecutionState *es; |
| 2131 | |
| 2132 | char buffer[128]; |
| 2133 | |
| 2134 | process->pid = pid; |
| 2135 | process->tgid = tgid; |
| 2136 | process->cpu = cpu; |
| 2137 | process->name = name; |
| 2138 | process->brand = LTTV_STATE_UNBRANDED; |
| 2139 | //process->last_cpu = tfs->cpu_name; |
| 2140 | //process->last_cpu_index = ltt_tracefile_num(((LttvTracefileContext*)tfs)->tf); |
| 2141 | process->type = LTTV_STATE_USER_THREAD; |
| 2142 | process->usertrace = ltt_state_usertrace_find(tcs, pid, timestamp); |
| 2143 | process->current_function = 0; //function 0x0 by default. |
| 2144 | |
| 2145 | g_info("Process %u, core %p", process->pid, process); |
| 2146 | g_hash_table_insert(tcs->processes, process, process); |
| 2147 | |
| 2148 | if(parent) { |
| 2149 | process->ppid = parent->pid; |
| 2150 | process->creation_time = *timestamp; |
| 2151 | } |
| 2152 | |
| 2153 | /* No parent. This process exists but we are missing all information about |
| 2154 | its creation. The birth time is set to zero but we remember the time of |
| 2155 | insertion */ |
| 2156 | |
| 2157 | else { |
| 2158 | process->ppid = 0; |
| 2159 | process->creation_time = ltt_time_zero; |
| 2160 | } |
| 2161 | |
| 2162 | process->insertion_time = *timestamp; |
| 2163 | sprintf(buffer,"%d-%lu.%lu",pid, process->creation_time.tv_sec, |
| 2164 | process->creation_time.tv_nsec); |
| 2165 | process->pid_time = g_quark_from_string(buffer); |
| 2166 | process->cpu = cpu; |
| 2167 | process->free_events = 0; |
| 2168 | //process->last_cpu = tfs->cpu_name; |
| 2169 | //process->last_cpu_index = ltt_tracefile_num(((LttvTracefileContext*)tfs)->tf); |
| 2170 | process->execution_stack = g_array_sized_new(FALSE, FALSE, |
| 2171 | sizeof(LttvExecutionState), PREALLOCATED_EXECUTION_STACK); |
| 2172 | process->execution_stack = g_array_set_size(process->execution_stack, 2); |
| 2173 | es = process->state = &g_array_index(process->execution_stack, |
| 2174 | LttvExecutionState, 0); |
| 2175 | es->t = LTTV_STATE_USER_MODE; |
| 2176 | es->n = LTTV_STATE_SUBMODE_NONE; |
| 2177 | es->entry = *timestamp; |
| 2178 | //g_assert(timestamp->tv_sec != 0); |
| 2179 | es->change = *timestamp; |
| 2180 | es->cum_cpu_time = ltt_time_zero; |
| 2181 | es->s = LTTV_STATE_RUN; |
| 2182 | |
| 2183 | es = process->state = &g_array_index(process->execution_stack, |
| 2184 | LttvExecutionState, 1); |
| 2185 | es->t = LTTV_STATE_SYSCALL; |
| 2186 | es->n = LTTV_STATE_SUBMODE_NONE; |
| 2187 | es->entry = *timestamp; |
| 2188 | //g_assert(timestamp->tv_sec != 0); |
| 2189 | es->change = *timestamp; |
| 2190 | es->cum_cpu_time = ltt_time_zero; |
| 2191 | es->s = LTTV_STATE_WAIT_FORK; |
| 2192 | |
| 2193 | /* Allocate an empty function call stack. If it's empty, use 0x0. */ |
| 2194 | process->user_stack = g_array_sized_new(FALSE, FALSE, |
| 2195 | sizeof(guint64), 0); |
| 2196 | |
| 2197 | return process; |
| 2198 | } |
| 2199 | |
| 2200 | LttvProcessState *lttv_state_find_process(LttvTraceState *ts, guint cpu, |
| 2201 | guint pid) |
| 2202 | { |
| 2203 | LttvProcessState key; |
| 2204 | LttvProcessState *process; |
| 2205 | |
| 2206 | key.pid = pid; |
| 2207 | key.cpu = cpu; |
| 2208 | process = g_hash_table_lookup(ts->processes, &key); |
| 2209 | return process; |
| 2210 | } |
| 2211 | |
| 2212 | LttvProcessState * |
| 2213 | lttv_state_find_process_or_create(LttvTraceState *ts, guint cpu, guint pid, |
| 2214 | const LttTime *timestamp) |
| 2215 | { |
| 2216 | LttvProcessState *process = lttv_state_find_process(ts, cpu, pid); |
| 2217 | LttvExecutionState *es; |
| 2218 | |
| 2219 | /* Put ltt_time_zero creation time for unexisting processes */ |
| 2220 | if(unlikely(process == NULL)) { |
| 2221 | process = lttv_state_create_process(ts, |
| 2222 | NULL, cpu, pid, 0, LTTV_STATE_UNNAMED, timestamp); |
| 2223 | /* We are not sure is it's a kernel thread or normal thread, put the |
| 2224 | * bottom stack state to unknown */ |
| 2225 | process->execution_stack = |
| 2226 | g_array_set_size(process->execution_stack, 1); |
| 2227 | process->state = es = |
| 2228 | &g_array_index(process->execution_stack, LttvExecutionState, 0); |
| 2229 | es->t = LTTV_STATE_MODE_UNKNOWN; |
| 2230 | es->s = LTTV_STATE_UNNAMED; |
| 2231 | } |
| 2232 | return process; |
| 2233 | } |
| 2234 | |
| 2235 | /* FIXME : this function should be called when we receive an event telling that |
| 2236 | * release_task has been called in the kernel. In happens generally when |
| 2237 | * the parent waits for its child terminaison, but may also happen in special |
| 2238 | * cases in the child's exit : when the parent ignores its children SIGCCHLD or |
| 2239 | * has the flag SA_NOCLDWAIT. It can also happen when the child is part |
| 2240 | * of a killed thread group, but isn't the leader. |
| 2241 | */ |
| 2242 | static int exit_process(LttvTracefileState *tfs, LttvProcessState *process) |
| 2243 | { |
| 2244 | LttvTraceState *ts = LTTV_TRACE_STATE(tfs->parent.t_context); |
| 2245 | LttvProcessState key; |
| 2246 | |
| 2247 | /* Wait for both schedule with exit dead and process free to happen. |
| 2248 | * They can happen in any order. */ |
| 2249 | if (++(process->free_events) < 2) |
| 2250 | return 0; |
| 2251 | |
| 2252 | key.pid = process->pid; |
| 2253 | key.cpu = process->cpu; |
| 2254 | g_hash_table_remove(ts->processes, &key); |
| 2255 | g_array_free(process->execution_stack, TRUE); |
| 2256 | g_array_free(process->user_stack, TRUE); |
| 2257 | g_free(process); |
| 2258 | return 1; |
| 2259 | } |
| 2260 | |
| 2261 | |
| 2262 | static void free_process_state(gpointer key, gpointer value,gpointer user_data) |
| 2263 | { |
| 2264 | g_array_free(((LttvProcessState *)value)->execution_stack, TRUE); |
| 2265 | g_array_free(((LttvProcessState *)value)->user_stack, TRUE); |
| 2266 | g_free(value); |
| 2267 | } |
| 2268 | |
| 2269 | |
| 2270 | static void lttv_state_free_process_table(GHashTable *processes) |
| 2271 | { |
| 2272 | g_hash_table_foreach(processes, free_process_state, NULL); |
| 2273 | g_hash_table_destroy(processes); |
| 2274 | } |
| 2275 | |
| 2276 | |
| 2277 | static gboolean syscall_entry(void *hook_data, void *call_data) |
| 2278 | { |
| 2279 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 2280 | guint cpu = s->cpu; |
| 2281 | LttvTraceState *ts = (LttvTraceState*)s->parent.t_context; |
| 2282 | LttvProcessState *process = ts->running_process[cpu]; |
| 2283 | LttEvent *e = ltt_tracefile_get_event(s->parent.tf); |
| 2284 | LttvTraceHook *th = (LttvTraceHook *)hook_data; |
| 2285 | struct marker_field *f = lttv_trace_get_hook_field(th, 0); |
| 2286 | |
| 2287 | LttvExecutionSubmode submode; |
| 2288 | |
| 2289 | guint nb_syscalls = ((LttvTraceState *)(s->parent.t_context))->nb_syscalls; |
| 2290 | guint syscall = ltt_event_get_unsigned(e, f); |
| 2291 | |
| 2292 | if(syscall < nb_syscalls) { |
| 2293 | submode = ((LttvTraceState *)(s->parent.t_context))->syscall_names[ |
| 2294 | syscall]; |
| 2295 | } else { |
| 2296 | /* Fixup an incomplete syscall table */ |
| 2297 | GString *string = g_string_new(""); |
| 2298 | g_string_printf(string, "syscall %u", syscall); |
| 2299 | submode = g_quark_from_string(string->str); |
| 2300 | g_string_free(string, TRUE); |
| 2301 | } |
| 2302 | /* There can be no system call from PID 0 : unknown state */ |
| 2303 | if(process->pid != 0) |
| 2304 | push_state(s, LTTV_STATE_SYSCALL, submode); |
| 2305 | return FALSE; |
| 2306 | } |
| 2307 | |
| 2308 | |
| 2309 | static gboolean syscall_exit(void *hook_data, void *call_data) |
| 2310 | { |
| 2311 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 2312 | guint cpu = s->cpu; |
| 2313 | LttvTraceState *ts = (LttvTraceState*)s->parent.t_context; |
| 2314 | LttvProcessState *process = ts->running_process[cpu]; |
| 2315 | |
| 2316 | /* There can be no system call from PID 0 : unknown state */ |
| 2317 | if(process->pid != 0) |
| 2318 | pop_state(s, LTTV_STATE_SYSCALL); |
| 2319 | return FALSE; |
| 2320 | } |
| 2321 | |
| 2322 | |
| 2323 | static gboolean trap_entry(void *hook_data, void *call_data) |
| 2324 | { |
| 2325 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 2326 | LttvTraceState *ts = (LttvTraceState *)s->parent.t_context; |
| 2327 | LttEvent *e = ltt_tracefile_get_event(s->parent.tf); |
| 2328 | LttvTraceHook *th = (LttvTraceHook *)hook_data; |
| 2329 | struct marker_field *f = lttv_trace_get_hook_field(th, 0); |
| 2330 | |
| 2331 | LttvExecutionSubmode submode; |
| 2332 | |
| 2333 | guint64 nb_traps = ((LttvTraceState *)(s->parent.t_context))->nb_traps; |
| 2334 | guint64 trap = ltt_event_get_long_unsigned(e, f); |
| 2335 | |
| 2336 | if(trap < nb_traps) { |
| 2337 | submode = ((LttvTraceState *)(s->parent.t_context))->trap_names[trap]; |
| 2338 | } else { |
| 2339 | /* Fixup an incomplete trap table */ |
| 2340 | GString *string = g_string_new(""); |
| 2341 | g_string_printf(string, "trap %llu", trap); |
| 2342 | submode = g_quark_from_string(string->str); |
| 2343 | g_string_free(string, TRUE); |
| 2344 | } |
| 2345 | |
| 2346 | push_state(s, LTTV_STATE_TRAP, submode); |
| 2347 | |
| 2348 | /* update cpu status */ |
| 2349 | cpu_push_mode(s->cpu_state, LTTV_CPU_TRAP); |
| 2350 | |
| 2351 | /* update trap status */ |
| 2352 | s->cpu_state->last_trap = trap; |
| 2353 | ts->trap_states[trap].running++; |
| 2354 | |
| 2355 | return FALSE; |
| 2356 | } |
| 2357 | |
| 2358 | static gboolean trap_exit(void *hook_data, void *call_data) |
| 2359 | { |
| 2360 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 2361 | LttvTraceState *ts = (LttvTraceState *)s->parent.t_context; |
| 2362 | guint trap = s->cpu_state->last_trap; |
| 2363 | |
| 2364 | pop_state(s, LTTV_STATE_TRAP); |
| 2365 | |
| 2366 | /* update cpu status */ |
| 2367 | cpu_pop_mode(s->cpu_state); |
| 2368 | |
| 2369 | /* update trap status */ |
| 2370 | if(ts->trap_states[trap].running) |
| 2371 | ts->trap_states[trap].running--; |
| 2372 | |
| 2373 | return FALSE; |
| 2374 | } |
| 2375 | |
| 2376 | static gboolean irq_entry(void *hook_data, void *call_data) |
| 2377 | { |
| 2378 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 2379 | LttvTraceState *ts = (LttvTraceState *)s->parent.t_context; |
| 2380 | LttEvent *e = ltt_tracefile_get_event(s->parent.tf); |
| 2381 | //guint8 ev_id = ltt_event_eventtype_id(e); |
| 2382 | LttvTraceHook *th = (LttvTraceHook *)hook_data; |
| 2383 | struct marker_field *f = lttv_trace_get_hook_field(th, 0); |
| 2384 | |
| 2385 | LttvExecutionSubmode submode; |
| 2386 | guint64 irq = ltt_event_get_long_unsigned(e, f); |
| 2387 | guint64 nb_irqs = ((LttvTraceState *)(s->parent.t_context))->nb_irqs; |
| 2388 | |
| 2389 | if(irq < nb_irqs) { |
| 2390 | submode = ((LttvTraceState *)(s->parent.t_context))->irq_names[irq]; |
| 2391 | } else { |
| 2392 | /* Fixup an incomplete irq table */ |
| 2393 | GString *string = g_string_new(""); |
| 2394 | g_string_printf(string, "irq %llu", irq); |
| 2395 | submode = g_quark_from_string(string->str); |
| 2396 | g_string_free(string, TRUE); |
| 2397 | } |
| 2398 | |
| 2399 | /* Do something with the info about being in user or system mode when int? */ |
| 2400 | push_state(s, LTTV_STATE_IRQ, submode); |
| 2401 | |
| 2402 | /* update cpu status */ |
| 2403 | cpu_push_mode(s->cpu_state, LTTV_CPU_IRQ); |
| 2404 | |
| 2405 | /* update irq status */ |
| 2406 | s->cpu_state->last_irq = irq; |
| 2407 | irq_push_mode(&ts->irq_states[irq], LTTV_IRQ_BUSY); |
| 2408 | |
| 2409 | return FALSE; |
| 2410 | } |
| 2411 | |
| 2412 | static gboolean soft_irq_exit(void *hook_data, void *call_data) |
| 2413 | { |
| 2414 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 2415 | LttvTraceState *ts = (LttvTraceState *)s->parent.t_context; |
| 2416 | guint softirq = s->cpu_state->last_soft_irq; |
| 2417 | |
| 2418 | pop_state(s, LTTV_STATE_SOFT_IRQ); |
| 2419 | |
| 2420 | /* update softirq status */ |
| 2421 | if(ts->soft_irq_states[softirq].running) |
| 2422 | ts->soft_irq_states[softirq].running--; |
| 2423 | |
| 2424 | /* update cpu status */ |
| 2425 | cpu_pop_mode(s->cpu_state); |
| 2426 | |
| 2427 | return FALSE; |
| 2428 | } |
| 2429 | |
| 2430 | static gboolean irq_exit(void *hook_data, void *call_data) |
| 2431 | { |
| 2432 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 2433 | LttvTraceState *ts = (LttvTraceState *)s->parent.t_context; |
| 2434 | |
| 2435 | pop_state(s, LTTV_STATE_IRQ); |
| 2436 | |
| 2437 | /* update cpu status */ |
| 2438 | cpu_pop_mode(s->cpu_state); |
| 2439 | |
| 2440 | /* update irq status */ |
| 2441 | irq_pop_mode(&ts->irq_states[s->cpu_state->last_irq]); |
| 2442 | |
| 2443 | return FALSE; |
| 2444 | } |
| 2445 | |
| 2446 | static gboolean soft_irq_entry(void *hook_data, void *call_data) |
| 2447 | { |
| 2448 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 2449 | LttvTraceState *ts = (LttvTraceState *)s->parent.t_context; |
| 2450 | LttEvent *e = ltt_tracefile_get_event(s->parent.tf); |
| 2451 | //guint8 ev_id = ltt_event_eventtype_id(e); |
| 2452 | LttvTraceHook *th = (LttvTraceHook *)hook_data; |
| 2453 | struct marker_field *f = lttv_trace_get_hook_field(th, 0); |
| 2454 | |
| 2455 | LttvExecutionSubmode submode; |
| 2456 | guint64 softirq = ltt_event_get_long_unsigned(e, f); |
| 2457 | guint64 nb_softirqs = ((LttvTraceState *)(s->parent.t_context))->nb_soft_irqs; |
| 2458 | |
| 2459 | if(softirq < nb_softirqs) { |
| 2460 | submode = ((LttvTraceState *)(s->parent.t_context))->soft_irq_names[softirq]; |
| 2461 | } else { |
| 2462 | /* Fixup an incomplete irq table */ |
| 2463 | GString *string = g_string_new(""); |
| 2464 | g_string_printf(string, "softirq %llu", softirq); |
| 2465 | submode = g_quark_from_string(string->str); |
| 2466 | g_string_free(string, TRUE); |
| 2467 | } |
| 2468 | |
| 2469 | /* Do something with the info about being in user or system mode when int? */ |
| 2470 | push_state(s, LTTV_STATE_SOFT_IRQ, submode); |
| 2471 | |
| 2472 | /* update cpu status */ |
| 2473 | cpu_push_mode(s->cpu_state, LTTV_CPU_SOFT_IRQ); |
| 2474 | |
| 2475 | /* update softirq status */ |
| 2476 | s->cpu_state->last_soft_irq = softirq; |
| 2477 | ts->soft_irq_states[softirq].running++; |
| 2478 | |
| 2479 | return FALSE; |
| 2480 | } |
| 2481 | |
| 2482 | static gboolean enum_interrupt(void *hook_data, void *call_data) |
| 2483 | { |
| 2484 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 2485 | LttvTraceState *ts = (LttvTraceState *)s->parent.t_context; |
| 2486 | LttEvent *e = ltt_tracefile_get_event(s->parent.tf); |
| 2487 | //guint8 ev_id = ltt_event_eventtype_id(e); |
| 2488 | LttvTraceHook *th = (LttvTraceHook *)hook_data; |
| 2489 | |
| 2490 | GQuark action = g_quark_from_string(ltt_event_get_string(e, |
| 2491 | lttv_trace_get_hook_field(th, 0))); |
| 2492 | guint irq = ltt_event_get_long_unsigned(e, lttv_trace_get_hook_field(th, 1)); |
| 2493 | |
| 2494 | ts->irq_names[irq] = action; |
| 2495 | |
| 2496 | return FALSE; |
| 2497 | } |
| 2498 | |
| 2499 | |
| 2500 | static gboolean bdev_request_issue(void *hook_data, void *call_data) |
| 2501 | { |
| 2502 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 2503 | LttvTraceState *ts = (LttvTraceState *)s->parent.t_context; |
| 2504 | LttEvent *e = ltt_tracefile_get_event(s->parent.tf); |
| 2505 | //guint8 ev_id = ltt_event_eventtype_id(e); |
| 2506 | LttvTraceHook *th = (LttvTraceHook *)hook_data; |
| 2507 | |
| 2508 | guint major = ltt_event_get_long_unsigned(e, |
| 2509 | lttv_trace_get_hook_field(th, 0)); |
| 2510 | guint minor = ltt_event_get_long_unsigned(e, |
| 2511 | lttv_trace_get_hook_field(th, 1)); |
| 2512 | guint oper = ltt_event_get_long_unsigned(e, |
| 2513 | lttv_trace_get_hook_field(th, 2)); |
| 2514 | guint16 devcode = MKDEV(major,minor); |
| 2515 | |
| 2516 | /* have we seen this block device before? */ |
| 2517 | gpointer bdev = get_hashed_bdevstate(ts, devcode); |
| 2518 | |
| 2519 | if(oper == 0) |
| 2520 | bdev_push_mode(bdev, LTTV_BDEV_BUSY_READING); |
| 2521 | else |
| 2522 | bdev_push_mode(bdev, LTTV_BDEV_BUSY_WRITING); |
| 2523 | |
| 2524 | return FALSE; |
| 2525 | } |
| 2526 | |
| 2527 | static gboolean bdev_request_complete(void *hook_data, void *call_data) |
| 2528 | { |
| 2529 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 2530 | LttvTraceState *ts = (LttvTraceState *)s->parent.t_context; |
| 2531 | LttEvent *e = ltt_tracefile_get_event(s->parent.tf); |
| 2532 | LttvTraceHook *th = (LttvTraceHook *)hook_data; |
| 2533 | |
| 2534 | guint major = ltt_event_get_long_unsigned(e, |
| 2535 | lttv_trace_get_hook_field(th, 0)); |
| 2536 | guint minor = ltt_event_get_long_unsigned(e, |
| 2537 | lttv_trace_get_hook_field(th, 1)); |
| 2538 | //guint oper = ltt_event_get_long_unsigned(e, |
| 2539 | // lttv_trace_get_hook_field(th, 2)); |
| 2540 | guint16 devcode = MKDEV(major,minor); |
| 2541 | |
| 2542 | /* have we seen this block device before? */ |
| 2543 | gpointer bdev = get_hashed_bdevstate(ts, devcode); |
| 2544 | |
| 2545 | /* update block device */ |
| 2546 | bdev_pop_mode(bdev); |
| 2547 | |
| 2548 | return FALSE; |
| 2549 | } |
| 2550 | |
| 2551 | static void push_function(LttvTracefileState *tfs, guint64 funcptr) |
| 2552 | { |
| 2553 | guint64 *new_func; |
| 2554 | |
| 2555 | LttvTraceState *ts = (LttvTraceState*)tfs->parent.t_context; |
| 2556 | guint cpu = tfs->cpu; |
| 2557 | LttvProcessState *process = ts->running_process[cpu]; |
| 2558 | |
| 2559 | guint depth = process->user_stack->len; |
| 2560 | |
| 2561 | process->user_stack = |
| 2562 | g_array_set_size(process->user_stack, depth + 1); |
| 2563 | |
| 2564 | new_func = &g_array_index(process->user_stack, guint64, depth); |
| 2565 | *new_func = funcptr; |
| 2566 | process->current_function = funcptr; |
| 2567 | } |
| 2568 | |
| 2569 | static void pop_function(LttvTracefileState *tfs, guint64 funcptr) |
| 2570 | { |
| 2571 | guint cpu = tfs->cpu; |
| 2572 | LttvTraceState *ts = (LttvTraceState*)tfs->parent.t_context; |
| 2573 | LttvProcessState *process = ts->running_process[cpu]; |
| 2574 | |
| 2575 | if(process->current_function != funcptr){ |
| 2576 | g_info("Different functions (%lu.%09lu): ignore it\n", |
| 2577 | tfs->parent.timestamp.tv_sec, tfs->parent.timestamp.tv_nsec); |
| 2578 | g_info("process state has %llu when pop_function is %llu\n", |
| 2579 | process->current_function, funcptr); |
| 2580 | g_info("{ %u, %u, %s, %s, %s }\n", |
| 2581 | process->pid, |
| 2582 | process->ppid, |
| 2583 | g_quark_to_string(process->name), |
| 2584 | g_quark_to_string(process->brand), |
| 2585 | g_quark_to_string(process->state->s)); |
| 2586 | return; |
| 2587 | } |
| 2588 | guint depth = process->user_stack->len; |
| 2589 | |
| 2590 | if(depth == 0){ |
| 2591 | g_info("Trying to pop last function on stack (%lu.%09lu): ignore it\n", |
| 2592 | tfs->parent.timestamp.tv_sec, tfs->parent.timestamp.tv_nsec); |
| 2593 | return; |
| 2594 | } |
| 2595 | |
| 2596 | process->user_stack = |
| 2597 | g_array_set_size(process->user_stack, depth - 1); |
| 2598 | process->current_function = |
| 2599 | g_array_index(process->user_stack, guint64, depth - 2); |
| 2600 | } |
| 2601 | |
| 2602 | |
| 2603 | static gboolean function_entry(void *hook_data, void *call_data) |
| 2604 | { |
| 2605 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 2606 | LttEvent *e = ltt_tracefile_get_event(s->parent.tf); |
| 2607 | //guint8 ev_id = ltt_event_eventtype_id(e); |
| 2608 | LttvTraceHook *th = (LttvTraceHook *)hook_data; |
| 2609 | struct marker_field *f = lttv_trace_get_hook_field(th, 0); |
| 2610 | guint64 funcptr = ltt_event_get_long_unsigned(e, f); |
| 2611 | |
| 2612 | push_function(s, funcptr); |
| 2613 | return FALSE; |
| 2614 | } |
| 2615 | |
| 2616 | static gboolean function_exit(void *hook_data, void *call_data) |
| 2617 | { |
| 2618 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 2619 | LttEvent *e = ltt_tracefile_get_event(s->parent.tf); |
| 2620 | //guint8 ev_id = ltt_event_eventtype_id(e); |
| 2621 | LttvTraceHook *th = (LttvTraceHook *)hook_data; |
| 2622 | struct marker_field *f = lttv_trace_get_hook_field(th, 0); |
| 2623 | guint64 funcptr = ltt_event_get_long_unsigned(e, f); |
| 2624 | |
| 2625 | pop_function(s, funcptr); |
| 2626 | return FALSE; |
| 2627 | } |
| 2628 | |
| 2629 | static gboolean schedchange(void *hook_data, void *call_data) |
| 2630 | { |
| 2631 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 2632 | guint cpu = s->cpu; |
| 2633 | LttvTraceState *ts = (LttvTraceState*)s->parent.t_context; |
| 2634 | LttvProcessState *process = ts->running_process[cpu]; |
| 2635 | //LttvProcessState *old_process = ts->running_process[cpu]; |
| 2636 | |
| 2637 | LttEvent *e = ltt_tracefile_get_event(s->parent.tf); |
| 2638 | LttvTraceHook *th = (LttvTraceHook *)hook_data; |
| 2639 | guint pid_in, pid_out; |
| 2640 | gint64 state_out; |
| 2641 | |
| 2642 | pid_out = ltt_event_get_unsigned(e, lttv_trace_get_hook_field(th, 0)); |
| 2643 | pid_in = ltt_event_get_unsigned(e, lttv_trace_get_hook_field(th, 1)); |
| 2644 | state_out = ltt_event_get_long_int(e, lttv_trace_get_hook_field(th, 2)); |
| 2645 | |
| 2646 | if(likely(process != NULL)) { |
| 2647 | |
| 2648 | /* We could not know but it was not the idle process executing. |
| 2649 | This should only happen at the beginning, before the first schedule |
| 2650 | event, and when the initial information (current process for each CPU) |
| 2651 | is missing. It is not obvious how we could, after the fact, compensate |
| 2652 | the wrongly attributed statistics. */ |
| 2653 | |
| 2654 | //This test only makes sense once the state is known and if there is no |
| 2655 | //missing events. We need to silently ignore schedchange coming after a |
| 2656 | //process_free, or it causes glitches. (FIXME) |
| 2657 | //if(unlikely(process->pid != pid_out)) { |
| 2658 | // g_assert(process->pid == 0); |
| 2659 | //} |
| 2660 | if(process->pid == 0 |
| 2661 | && process->state->t == LTTV_STATE_MODE_UNKNOWN) { |
| 2662 | if(pid_out == 0) { |
| 2663 | /* Scheduling out of pid 0 at beginning of the trace : |
| 2664 | * we know for sure it is in syscall mode at this point. */ |
| 2665 | g_assert(process->execution_stack->len == 1); |
| 2666 | process->state->t = LTTV_STATE_SYSCALL; |
| 2667 | process->state->s = LTTV_STATE_WAIT; |
| 2668 | process->state->change = s->parent.timestamp; |
| 2669 | process->state->entry = s->parent.timestamp; |
| 2670 | } |
| 2671 | } else { |
| 2672 | if(unlikely(process->state->s == LTTV_STATE_EXIT)) { |
| 2673 | process->state->s = LTTV_STATE_ZOMBIE; |
| 2674 | process->state->change = s->parent.timestamp; |
| 2675 | } else { |
| 2676 | if(unlikely(state_out == 0)) process->state->s = LTTV_STATE_WAIT_CPU; |
| 2677 | else process->state->s = LTTV_STATE_WAIT; |
| 2678 | process->state->change = s->parent.timestamp; |
| 2679 | } |
| 2680 | |
| 2681 | if(state_out == 32 || state_out == 64) { /* EXIT_DEAD || TASK_DEAD */ |
| 2682 | /* see sched.h for states */ |
| 2683 | if (!exit_process(s, process)) { |
| 2684 | process->state->s = LTTV_STATE_DEAD; |
| 2685 | process->state->change = s->parent.timestamp; |
| 2686 | } |
| 2687 | } |
| 2688 | } |
| 2689 | } |
| 2690 | process = ts->running_process[cpu] = |
| 2691 | lttv_state_find_process_or_create( |
| 2692 | (LttvTraceState*)s->parent.t_context, |
| 2693 | cpu, pid_in, |
| 2694 | &s->parent.timestamp); |
| 2695 | process->state->s = LTTV_STATE_RUN; |
| 2696 | process->cpu = cpu; |
| 2697 | if(process->usertrace) |
| 2698 | process->usertrace->cpu = cpu; |
| 2699 | // process->last_cpu_index = ltt_tracefile_num(((LttvTracefileContext*)s)->tf); |
| 2700 | process->state->change = s->parent.timestamp; |
| 2701 | |
| 2702 | /* update cpu status */ |
| 2703 | if(pid_in == 0) |
| 2704 | /* going to idle task */ |
| 2705 | cpu_set_base_mode(s->cpu_state, LTTV_CPU_IDLE); |
| 2706 | else { |
| 2707 | /* scheduling a real task. |
| 2708 | * we must be careful here: |
| 2709 | * if we just schedule()'ed to a process that is |
| 2710 | * in a trap, we must put the cpu in trap mode |
| 2711 | */ |
| 2712 | cpu_set_base_mode(s->cpu_state, LTTV_CPU_BUSY); |
| 2713 | if(process->state->t == LTTV_STATE_TRAP) |
| 2714 | cpu_push_mode(s->cpu_state, LTTV_CPU_TRAP); |
| 2715 | } |
| 2716 | |
| 2717 | return FALSE; |
| 2718 | } |
| 2719 | |
| 2720 | static gboolean process_fork(void *hook_data, void *call_data) |
| 2721 | { |
| 2722 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 2723 | LttEvent *e = ltt_tracefile_get_event(s->parent.tf); |
| 2724 | LttvTraceHook *th = (LttvTraceHook *)hook_data; |
| 2725 | guint parent_pid; |
| 2726 | guint child_pid; /* In the Linux Kernel, there is one PID per thread. */ |
| 2727 | guint child_tgid; /* tgid in the Linux kernel is the "real" POSIX PID. */ |
| 2728 | //LttvProcessState *zombie_process; |
| 2729 | guint cpu = s->cpu; |
| 2730 | LttvTraceState *ts = (LttvTraceState*)s->parent.t_context; |
| 2731 | LttvProcessState *process = ts->running_process[cpu]; |
| 2732 | LttvProcessState *child_process; |
| 2733 | struct marker_field *f; |
| 2734 | |
| 2735 | /* Parent PID */ |
| 2736 | parent_pid = ltt_event_get_unsigned(e, lttv_trace_get_hook_field(th, 0)); |
| 2737 | |
| 2738 | /* Child PID */ |
| 2739 | child_pid = ltt_event_get_unsigned(e, lttv_trace_get_hook_field(th, 1)); |
| 2740 | s->parent.target_pid = child_pid; |
| 2741 | |
| 2742 | /* Child TGID */ |
| 2743 | f = lttv_trace_get_hook_field(th, 2); |
| 2744 | if (likely(f)) |
| 2745 | child_tgid = ltt_event_get_unsigned(e, f); |
| 2746 | else |
| 2747 | child_tgid = 0; |
| 2748 | |
| 2749 | /* Mathieu : it seems like the process might have been scheduled in before the |
| 2750 | * fork, and, in a rare case, might be the current process. This might happen |
| 2751 | * in a SMP case where we don't have enough precision on the clocks. |
| 2752 | * |
| 2753 | * Test reenabled after precision fixes on time. (Mathieu) */ |
| 2754 | #if 0 |
| 2755 | zombie_process = lttv_state_find_process(ts, ANY_CPU, child_pid); |
| 2756 | |
| 2757 | if(unlikely(zombie_process != NULL)) { |
| 2758 | /* Reutilisation of PID. Only now we are sure that the old PID |
| 2759 | * has been released. FIXME : should know when release_task happens instead. |
| 2760 | */ |
| 2761 | guint num_cpus = ltt_trace_get_num_cpu(ts->parent.t); |
| 2762 | guint i; |
| 2763 | for(i=0; i< num_cpus; i++) { |
| 2764 | g_assert(zombie_process != ts->running_process[i]); |
| 2765 | } |
| 2766 | |
| 2767 | exit_process(s, zombie_process); |
| 2768 | } |
| 2769 | #endif //0 |
| 2770 | g_assert(process->pid != child_pid); |
| 2771 | // FIXME : Add this test in the "known state" section |
| 2772 | // g_assert(process->pid == parent_pid); |
| 2773 | child_process = lttv_state_find_process(ts, ANY_CPU, child_pid); |
| 2774 | if(child_process == NULL) { |
| 2775 | child_process = lttv_state_create_process(ts, process, cpu, |
| 2776 | child_pid, child_tgid, |
| 2777 | LTTV_STATE_UNNAMED, &s->parent.timestamp); |
| 2778 | } else { |
| 2779 | /* The process has already been created : due to time imprecision between |
| 2780 | * multiple CPUs : it has been scheduled in before creation. Note that we |
| 2781 | * shouldn't have this kind of imprecision. |
| 2782 | * |
| 2783 | * Simply put a correct parent. |
| 2784 | */ |
| 2785 | g_error("Process %u has been created before fork on cpu %u. Probably an unsynchronized TSC problem on the traced machine.", child_pid, cpu); |
| 2786 | //g_assert(0); /* This is a problematic case : the process has been created |
| 2787 | // before the fork event */ |
| 2788 | child_process->ppid = process->pid; |
| 2789 | child_process->tgid = child_tgid; |
| 2790 | } |
| 2791 | g_assert(child_process->name == LTTV_STATE_UNNAMED); |
| 2792 | child_process->name = process->name; |
| 2793 | child_process->brand = process->brand; |
| 2794 | |
| 2795 | return FALSE; |
| 2796 | } |
| 2797 | |
| 2798 | /* We stamp a newly created process as kernel_thread. |
| 2799 | * The thread should not be running yet. */ |
| 2800 | static gboolean process_kernel_thread(void *hook_data, void *call_data) |
| 2801 | { |
| 2802 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 2803 | LttEvent *e = ltt_tracefile_get_event(s->parent.tf); |
| 2804 | LttvTraceHook *th = (LttvTraceHook *)hook_data; |
| 2805 | guint pid; |
| 2806 | LttvTraceState *ts = (LttvTraceState*)s->parent.t_context; |
| 2807 | LttvProcessState *process; |
| 2808 | LttvExecutionState *es; |
| 2809 | |
| 2810 | /* PID */ |
| 2811 | pid = (guint)ltt_event_get_long_unsigned(e, lttv_trace_get_hook_field(th, 0)); |
| 2812 | s->parent.target_pid = pid; |
| 2813 | |
| 2814 | process = lttv_state_find_process_or_create(ts, ANY_CPU, pid, |
| 2815 | <t_time_zero); |
| 2816 | if (process->state->s != LTTV_STATE_DEAD) { |
| 2817 | process->execution_stack = |
| 2818 | g_array_set_size(process->execution_stack, 1); |
| 2819 | es = process->state = |
| 2820 | &g_array_index(process->execution_stack, LttvExecutionState, 0); |
| 2821 | es->t = LTTV_STATE_SYSCALL; |
| 2822 | } |
| 2823 | process->type = LTTV_STATE_KERNEL_THREAD; |
| 2824 | |
| 2825 | return FALSE; |
| 2826 | } |
| 2827 | |
| 2828 | static gboolean process_exit(void *hook_data, void *call_data) |
| 2829 | { |
| 2830 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 2831 | LttEvent *e = ltt_tracefile_get_event(s->parent.tf); |
| 2832 | LttvTraceHook *th = (LttvTraceHook *)hook_data; |
| 2833 | guint pid; |
| 2834 | LttvTraceState *ts = (LttvTraceState*)s->parent.t_context; |
| 2835 | LttvProcessState *process; // = ts->running_process[cpu]; |
| 2836 | |
| 2837 | pid = ltt_event_get_unsigned(e, lttv_trace_get_hook_field(th, 0)); |
| 2838 | s->parent.target_pid = pid; |
| 2839 | |
| 2840 | // FIXME : Add this test in the "known state" section |
| 2841 | // g_assert(process->pid == pid); |
| 2842 | |
| 2843 | process = lttv_state_find_process(ts, ANY_CPU, pid); |
| 2844 | if(likely(process != NULL)) { |
| 2845 | process->state->s = LTTV_STATE_EXIT; |
| 2846 | } |
| 2847 | return FALSE; |
| 2848 | } |
| 2849 | |
| 2850 | static gboolean process_free(void *hook_data, void *call_data) |
| 2851 | { |
| 2852 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 2853 | LttvTraceState *ts = (LttvTraceState*)s->parent.t_context; |
| 2854 | LttEvent *e = ltt_tracefile_get_event(s->parent.tf); |
| 2855 | LttvTraceHook *th = (LttvTraceHook *)hook_data; |
| 2856 | guint release_pid; |
| 2857 | LttvProcessState *process; |
| 2858 | |
| 2859 | /* PID of the process to release */ |
| 2860 | release_pid = ltt_event_get_unsigned(e, lttv_trace_get_hook_field(th, 0)); |
| 2861 | s->parent.target_pid = release_pid; |
| 2862 | |
| 2863 | g_assert(release_pid != 0); |
| 2864 | |
| 2865 | process = lttv_state_find_process(ts, ANY_CPU, release_pid); |
| 2866 | if(likely(process != NULL)) |
| 2867 | exit_process(s, process); |
| 2868 | return FALSE; |
| 2869 | //DISABLED |
| 2870 | if(likely(process != NULL)) { |
| 2871 | /* release_task is happening at kernel level : we can now safely release |
| 2872 | * the data structure of the process */ |
| 2873 | //This test is fun, though, as it may happen that |
| 2874 | //at time t : CPU 0 : process_free |
| 2875 | //at time t+150ns : CPU 1 : schedule out |
| 2876 | //Clearly due to time imprecision, we disable it. (Mathieu) |
| 2877 | //If this weird case happen, we have no choice but to put the |
| 2878 | //Currently running process on the cpu to 0. |
| 2879 | //I re-enable it following time precision fixes. (Mathieu) |
| 2880 | //Well, in the case where an process is freed by a process on another CPU |
| 2881 | //and still scheduled, it happens that this is the schedchange that will |
| 2882 | //drop the last reference count. Do not free it here! |
| 2883 | guint num_cpus = ltt_trace_get_num_cpu(ts->parent.t); |
| 2884 | guint i; |
| 2885 | for(i=0; i< num_cpus; i++) { |
| 2886 | //g_assert(process != ts->running_process[i]); |
| 2887 | if(process == ts->running_process[i]) { |
| 2888 | //ts->running_process[i] = lttv_state_find_process(ts, i, 0); |
| 2889 | break; |
| 2890 | } |
| 2891 | } |
| 2892 | if(i == num_cpus) /* process is not scheduled */ |
| 2893 | exit_process(s, process); |
| 2894 | } |
| 2895 | |
| 2896 | return FALSE; |
| 2897 | } |
| 2898 | |
| 2899 | |
| 2900 | static gboolean process_exec(void *hook_data, void *call_data) |
| 2901 | { |
| 2902 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 2903 | LttvTraceState *ts = (LttvTraceState*)s->parent.t_context; |
| 2904 | LttEvent *e = ltt_tracefile_get_event(s->parent.tf); |
| 2905 | LttvTraceHook *th = (LttvTraceHook *)hook_data; |
| 2906 | //gchar *name; |
| 2907 | guint cpu = s->cpu; |
| 2908 | LttvProcessState *process = ts->running_process[cpu]; |
| 2909 | |
| 2910 | #if 0//how to use a sequence that must be transformed in a string |
| 2911 | /* PID of the process to release */ |
| 2912 | guint64 name_len = ltt_event_field_element_number(e, |
| 2913 | lttv_trace_get_hook_field(th, 0)); |
| 2914 | //name = ltt_event_get_string(e, lttv_trace_get_hook_field(th, 0)); |
| 2915 | LttField *child = ltt_event_field_element_select(e, |
| 2916 | lttv_trace_get_hook_field(th, 0), 0); |
| 2917 | gchar *name_begin = |
| 2918 | (gchar*)(ltt_event_data(e)+ltt_event_field_offset(e, child)); |
| 2919 | gchar *null_term_name = g_new(gchar, name_len+1); |
| 2920 | memcpy(null_term_name, name_begin, name_len); |
| 2921 | null_term_name[name_len] = '\0'; |
| 2922 | process->name = g_quark_from_string(null_term_name); |
| 2923 | #endif //0 |
| 2924 | |
| 2925 | process->name = g_quark_from_string(ltt_event_get_string(e, |
| 2926 | lttv_trace_get_hook_field(th, 0))); |
| 2927 | process->brand = LTTV_STATE_UNBRANDED; |
| 2928 | //g_free(null_term_name); |
| 2929 | return FALSE; |
| 2930 | } |
| 2931 | |
| 2932 | static gboolean thread_brand(void *hook_data, void *call_data) |
| 2933 | { |
| 2934 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 2935 | LttvTraceState *ts = (LttvTraceState*)s->parent.t_context; |
| 2936 | LttEvent *e = ltt_tracefile_get_event(s->parent.tf); |
| 2937 | LttvTraceHook *th = (LttvTraceHook *)hook_data; |
| 2938 | gchar *name; |
| 2939 | guint cpu = s->cpu; |
| 2940 | LttvProcessState *process = ts->running_process[cpu]; |
| 2941 | |
| 2942 | name = ltt_event_get_string(e, lttv_trace_get_hook_field(th, 0)); |
| 2943 | process->brand = g_quark_from_string(name); |
| 2944 | |
| 2945 | return FALSE; |
| 2946 | } |
| 2947 | |
| 2948 | static void fix_process(gpointer key, gpointer value, |
| 2949 | gpointer user_data) |
| 2950 | { |
| 2951 | LttvProcessState *process; |
| 2952 | LttvExecutionState *es; |
| 2953 | process = (LttvProcessState *)value; |
| 2954 | LttTime *timestamp = (LttTime*)user_data; |
| 2955 | |
| 2956 | if(process->type == LTTV_STATE_KERNEL_THREAD) { |
| 2957 | es = &g_array_index(process->execution_stack, LttvExecutionState, 0); |
| 2958 | if(es->t == LTTV_STATE_MODE_UNKNOWN) { |
| 2959 | es->t = LTTV_STATE_SYSCALL; |
| 2960 | es->n = LTTV_STATE_SUBMODE_NONE; |
| 2961 | es->entry = *timestamp; |
| 2962 | es->change = *timestamp; |
| 2963 | es->cum_cpu_time = ltt_time_zero; |
| 2964 | if(es->s == LTTV_STATE_UNNAMED) |
| 2965 | es->s = LTTV_STATE_WAIT; |
| 2966 | } |
| 2967 | } else { |
| 2968 | es = &g_array_index(process->execution_stack, LttvExecutionState, 0); |
| 2969 | if(es->t == LTTV_STATE_MODE_UNKNOWN) { |
| 2970 | es->t = LTTV_STATE_USER_MODE; |
| 2971 | es->n = LTTV_STATE_SUBMODE_NONE; |
| 2972 | es->entry = *timestamp; |
| 2973 | //g_assert(timestamp->tv_sec != 0); |
| 2974 | es->change = *timestamp; |
| 2975 | es->cum_cpu_time = ltt_time_zero; |
| 2976 | if(es->s == LTTV_STATE_UNNAMED) |
| 2977 | es->s = LTTV_STATE_RUN; |
| 2978 | |
| 2979 | if(process->execution_stack->len == 1) { |
| 2980 | /* Still in bottom unknown mode, means never did a system call |
| 2981 | * May be either in user mode, syscall mode, running or waiting.*/ |
| 2982 | /* FIXME : we may be tagging syscall mode when being user mode */ |
| 2983 | process->execution_stack = |
| 2984 | g_array_set_size(process->execution_stack, 2); |
| 2985 | es = process->state = &g_array_index(process->execution_stack, |
| 2986 | LttvExecutionState, 1); |
| 2987 | es->t = LTTV_STATE_SYSCALL; |
| 2988 | es->n = LTTV_STATE_SUBMODE_NONE; |
| 2989 | es->entry = *timestamp; |
| 2990 | //g_assert(timestamp->tv_sec != 0); |
| 2991 | es->change = *timestamp; |
| 2992 | es->cum_cpu_time = ltt_time_zero; |
| 2993 | if(es->s == LTTV_STATE_WAIT_FORK) |
| 2994 | es->s = LTTV_STATE_WAIT; |
| 2995 | } |
| 2996 | } |
| 2997 | } |
| 2998 | } |
| 2999 | |
| 3000 | static gboolean statedump_end(void *hook_data, void *call_data) |
| 3001 | { |
| 3002 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 3003 | LttvTraceState *ts = (LttvTraceState*)s->parent.t_context; |
| 3004 | LttvTracefileContext *tfc = (LttvTracefileContext *)call_data; |
| 3005 | //LttEvent *e = ltt_tracefile_get_event(s->parent.tf); |
| 3006 | //LttvTraceHook *th = (LttvTraceHook *)hook_data; |
| 3007 | |
| 3008 | /* For all processes */ |
| 3009 | /* if kernel thread, if stack[0] is unknown, set to syscall mode, wait */ |
| 3010 | /* else, if stack[0] is unknown, set to user mode, running */ |
| 3011 | |
| 3012 | g_hash_table_foreach(ts->processes, fix_process, &tfc->timestamp); |
| 3013 | |
| 3014 | return FALSE; |
| 3015 | } |
| 3016 | |
| 3017 | static gboolean enum_process_state(void *hook_data, void *call_data) |
| 3018 | { |
| 3019 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 3020 | LttEvent *e = ltt_tracefile_get_event(s->parent.tf); |
| 3021 | //It's slow : optimise later by doing this before reading trace. |
| 3022 | LttvTraceHook *th = (LttvTraceHook *)hook_data; |
| 3023 | guint parent_pid; |
| 3024 | guint pid; |
| 3025 | guint tgid; |
| 3026 | gchar * command; |
| 3027 | guint cpu = s->cpu; |
| 3028 | LttvTraceState *ts = (LttvTraceState*)s->parent.t_context; |
| 3029 | LttvProcessState *process = ts->running_process[cpu]; |
| 3030 | LttvProcessState *parent_process; |
| 3031 | struct marker_field *f; |
| 3032 | GQuark type, mode, submode, status; |
| 3033 | LttvExecutionState *es; |
| 3034 | guint i, nb_cpus; |
| 3035 | |
| 3036 | /* PID */ |
| 3037 | pid = ltt_event_get_unsigned(e, lttv_trace_get_hook_field(th, 0)); |
| 3038 | s->parent.target_pid = pid; |
| 3039 | |
| 3040 | /* Parent PID */ |
| 3041 | parent_pid = ltt_event_get_unsigned(e, lttv_trace_get_hook_field(th, 1)); |
| 3042 | |
| 3043 | /* Command name */ |
| 3044 | command = ltt_event_get_string(e, lttv_trace_get_hook_field(th, 2)); |
| 3045 | |
| 3046 | /* type */ |
| 3047 | f = lttv_trace_get_hook_field(th, 3); |
| 3048 | type = ltt_enum_string_get(f, ltt_event_get_unsigned(e, f)); |
| 3049 | |
| 3050 | //FIXME: type is rarely used, enum must match possible types. |
| 3051 | |
| 3052 | /* mode */ |
| 3053 | f = lttv_trace_get_hook_field(th, 4); |
| 3054 | mode = ltt_enum_string_get(f,ltt_event_get_unsigned(e, f)); |
| 3055 | |
| 3056 | /* submode */ |
| 3057 | f = lttv_trace_get_hook_field(th, 5); |
| 3058 | submode = ltt_enum_string_get(f, ltt_event_get_unsigned(e, f)); |
| 3059 | |
| 3060 | /* status */ |
| 3061 | f = lttv_trace_get_hook_field(th, 6); |
| 3062 | status = ltt_enum_string_get(f, ltt_event_get_unsigned(e, f)); |
| 3063 | |
| 3064 | /* TGID */ |
| 3065 | f = lttv_trace_get_hook_field(th, 7); |
| 3066 | if(f) |
| 3067 | tgid = ltt_event_get_unsigned(e, f); |
| 3068 | else |
| 3069 | tgid = 0; |
| 3070 | |
| 3071 | if(pid == 0) { |
| 3072 | nb_cpus = ltt_trace_get_num_cpu(ts->parent.t); |
| 3073 | for(i=0; i<nb_cpus; i++) { |
| 3074 | process = lttv_state_find_process(ts, i, pid); |
| 3075 | g_assert(process != NULL); |
| 3076 | |
| 3077 | process->ppid = parent_pid; |
| 3078 | process->tgid = tgid; |
| 3079 | process->name = g_quark_from_string(command); |
| 3080 | es = |
| 3081 | &g_array_index(process->execution_stack, LttvExecutionState, 0); |
| 3082 | process->type = LTTV_STATE_KERNEL_THREAD; |
| 3083 | } |
| 3084 | |
| 3085 | } else { |
| 3086 | /* The process might exist if a process was forked while performing the |
| 3087 | * state dump. */ |
| 3088 | process = lttv_state_find_process(ts, ANY_CPU, pid); |
| 3089 | if(process == NULL) { |
| 3090 | parent_process = lttv_state_find_process(ts, ANY_CPU, parent_pid); |
| 3091 | process = lttv_state_create_process(ts, parent_process, cpu, |
| 3092 | pid, tgid, g_quark_from_string(command), |
| 3093 | &s->parent.timestamp); |
| 3094 | |
| 3095 | /* Keep the stack bottom : a running user mode */ |
| 3096 | /* Disabled because of inconsistencies in the current statedump states. */ |
| 3097 | if(type == LTTV_STATE_KERNEL_THREAD) { |
| 3098 | /* Only keep the bottom |
| 3099 | * FIXME Kernel thread : can be in syscall or interrupt or trap. */ |
| 3100 | /* Will cause expected trap when in fact being syscall (even after end of |
| 3101 | * statedump event) |
| 3102 | * Will cause expected interrupt when being syscall. (only before end of |
| 3103 | * statedump event) */ |
| 3104 | // This will cause a "popping last state on stack, ignoring it." |
| 3105 | process->execution_stack = g_array_set_size(process->execution_stack, 1); |
| 3106 | es = process->state = &g_array_index(process->execution_stack, |
| 3107 | LttvExecutionState, 0); |
| 3108 | process->type = LTTV_STATE_KERNEL_THREAD; |
| 3109 | es->t = LTTV_STATE_MODE_UNKNOWN; |
| 3110 | es->s = LTTV_STATE_UNNAMED; |
| 3111 | es->n = LTTV_STATE_SUBMODE_UNKNOWN; |
| 3112 | #if 0 |
| 3113 | es->t = LTTV_STATE_SYSCALL; |
| 3114 | es->s = status; |
| 3115 | es->n = submode; |
| 3116 | #endif //0 |
| 3117 | } else { |
| 3118 | /* User space process : |
| 3119 | * bottom : user mode |
| 3120 | * either currently running or scheduled out. |
| 3121 | * can be scheduled out because interrupted in (user mode or in syscall) |
| 3122 | * or because of an explicit call to the scheduler in syscall. Note that |
| 3123 | * the scheduler call comes after the irq_exit, so never in interrupt |
| 3124 | * context. */ |
| 3125 | // temp workaround : set size to 1 : only have user mode bottom of stack. |
| 3126 | // will cause g_info message of expected syscall mode when in fact being |
| 3127 | // in user mode. Can also cause expected trap when in fact being user |
| 3128 | // mode in the event of a page fault reenabling interrupts in the handler. |
| 3129 | // Expected syscall and trap can also happen after the end of statedump |
| 3130 | // This will cause a "popping last state on stack, ignoring it." |
| 3131 | process->execution_stack = g_array_set_size(process->execution_stack, 1); |
| 3132 | es = process->state = &g_array_index(process->execution_stack, |
| 3133 | LttvExecutionState, 0); |
| 3134 | es->t = LTTV_STATE_MODE_UNKNOWN; |
| 3135 | es->s = LTTV_STATE_UNNAMED; |
| 3136 | es->n = LTTV_STATE_SUBMODE_UNKNOWN; |
| 3137 | #if 0 |
| 3138 | es->t = LTTV_STATE_USER_MODE; |
| 3139 | es->s = status; |
| 3140 | es->n = submode; |
| 3141 | #endif //0 |
| 3142 | } |
| 3143 | #if 0 |
| 3144 | /* UNKNOWN STATE */ |
| 3145 | { |
| 3146 | es = process->state = &g_array_index(process->execution_stack, |
| 3147 | LttvExecutionState, 1); |
| 3148 | es->t = LTTV_STATE_MODE_UNKNOWN; |
| 3149 | es->s = LTTV_STATE_UNNAMED; |
| 3150 | es->n = LTTV_STATE_SUBMODE_UNKNOWN; |
| 3151 | } |
| 3152 | #endif //0 |
| 3153 | } else { |
| 3154 | /* The process has already been created : |
| 3155 | * Probably was forked while dumping the process state or |
| 3156 | * was simply scheduled in prior to get the state dump event. |
| 3157 | */ |
| 3158 | process->ppid = parent_pid; |
| 3159 | process->tgid = tgid; |
| 3160 | process->name = g_quark_from_string(command); |
| 3161 | process->type = type; |
| 3162 | es = |
| 3163 | &g_array_index(process->execution_stack, LttvExecutionState, 0); |
| 3164 | #if 0 |
| 3165 | if(es->t == LTTV_STATE_MODE_UNKNOWN) { |
| 3166 | if(type == LTTV_STATE_KERNEL_THREAD) |
| 3167 | es->t = LTTV_STATE_SYSCALL; |
| 3168 | else |
| 3169 | es->t = LTTV_STATE_USER_MODE; |
| 3170 | } |
| 3171 | #endif //0 |
| 3172 | /* Don't mess around with the stack, it will eventually become |
| 3173 | * ok after the end of state dump. */ |
| 3174 | } |
| 3175 | } |
| 3176 | |
| 3177 | return FALSE; |
| 3178 | } |
| 3179 | |
| 3180 | gint lttv_state_hook_add_event_hooks(void *hook_data, void *call_data) |
| 3181 | { |
| 3182 | LttvTracesetState *tss = (LttvTracesetState*)(call_data); |
| 3183 | |
| 3184 | lttv_state_add_event_hooks(tss); |
| 3185 | |
| 3186 | return 0; |
| 3187 | } |
| 3188 | |
| 3189 | void lttv_state_add_event_hooks(LttvTracesetState *self) |
| 3190 | { |
| 3191 | LttvTraceset *traceset = self->parent.ts; |
| 3192 | |
| 3193 | guint i, j, k, nb_trace, nb_tracefile; |
| 3194 | |
| 3195 | LttvTraceState *ts; |
| 3196 | |
| 3197 | LttvTracefileState *tfs; |
| 3198 | |
| 3199 | GArray *hooks; |
| 3200 | |
| 3201 | LttvTraceHook *th; |
| 3202 | |
| 3203 | LttvAttributeValue val; |
| 3204 | |
| 3205 | nb_trace = lttv_traceset_number(traceset); |
| 3206 | for(i = 0 ; i < nb_trace ; i++) { |
| 3207 | ts = (LttvTraceState *)self->parent.traces[i]; |
| 3208 | |
| 3209 | /* Find the eventtype id for the following events and register the |
| 3210 | associated by id hooks. */ |
| 3211 | |
| 3212 | hooks = g_array_sized_new(FALSE, FALSE, sizeof(LttvTraceHook), 19); |
| 3213 | //hooks = g_array_set_size(hooks, 19); // Max possible number of hooks. |
| 3214 | //hn = 0; |
| 3215 | |
| 3216 | lttv_trace_find_hook(ts->parent.t, |
| 3217 | LTT_FACILITY_KERNEL_ARCH, |
| 3218 | LTT_EVENT_SYSCALL_ENTRY, |
| 3219 | FIELD_ARRAY(LTT_FIELD_SYSCALL_ID), |
| 3220 | syscall_entry, NULL, &hooks); |
| 3221 | |
| 3222 | lttv_trace_find_hook(ts->parent.t, |
| 3223 | LTT_FACILITY_KERNEL_ARCH, |
| 3224 | LTT_EVENT_SYSCALL_EXIT, |
| 3225 | NULL, |
| 3226 | syscall_exit, NULL, &hooks); |
| 3227 | |
| 3228 | lttv_trace_find_hook(ts->parent.t, |
| 3229 | LTT_FACILITY_KERNEL_ARCH, |
| 3230 | LTT_EVENT_TRAP_ENTRY, |
| 3231 | FIELD_ARRAY(LTT_FIELD_TRAP_ID), |
| 3232 | trap_entry, NULL, &hooks); |
| 3233 | |
| 3234 | lttv_trace_find_hook(ts->parent.t, |
| 3235 | LTT_FACILITY_KERNEL_ARCH, |
| 3236 | LTT_EVENT_TRAP_EXIT, |
| 3237 | NULL, |
| 3238 | trap_exit, NULL, &hooks); |
| 3239 | |
| 3240 | lttv_trace_find_hook(ts->parent.t, |
| 3241 | LTT_FACILITY_KERNEL, |
| 3242 | LTT_EVENT_IRQ_ENTRY, |
| 3243 | FIELD_ARRAY(LTT_FIELD_IRQ_ID), |
| 3244 | irq_entry, NULL, &hooks); |
| 3245 | |
| 3246 | lttv_trace_find_hook(ts->parent.t, |
| 3247 | LTT_FACILITY_KERNEL, |
| 3248 | LTT_EVENT_IRQ_EXIT, |
| 3249 | NULL, |
| 3250 | irq_exit, NULL, &hooks); |
| 3251 | |
| 3252 | lttv_trace_find_hook(ts->parent.t, |
| 3253 | LTT_FACILITY_KERNEL, |
| 3254 | LTT_EVENT_SOFT_IRQ_ENTRY, |
| 3255 | FIELD_ARRAY(LTT_FIELD_SOFT_IRQ_ID), |
| 3256 | soft_irq_entry, NULL, &hooks); |
| 3257 | |
| 3258 | lttv_trace_find_hook(ts->parent.t, |
| 3259 | LTT_FACILITY_KERNEL, |
| 3260 | LTT_EVENT_SOFT_IRQ_EXIT, |
| 3261 | NULL, |
| 3262 | soft_irq_exit, NULL, &hooks); |
| 3263 | |
| 3264 | lttv_trace_find_hook(ts->parent.t, |
| 3265 | LTT_FACILITY_KERNEL, |
| 3266 | LTT_EVENT_SCHED_SCHEDULE, |
| 3267 | FIELD_ARRAY(LTT_FIELD_PREV_PID, LTT_FIELD_NEXT_PID, |
| 3268 | LTT_FIELD_PREV_STATE), |
| 3269 | schedchange, NULL, &hooks); |
| 3270 | |
| 3271 | lttv_trace_find_hook(ts->parent.t, |
| 3272 | LTT_FACILITY_KERNEL, |
| 3273 | LTT_EVENT_PROCESS_FORK, |
| 3274 | FIELD_ARRAY(LTT_FIELD_PARENT_PID, LTT_FIELD_CHILD_PID, |
| 3275 | LTT_FIELD_CHILD_TGID), |
| 3276 | process_fork, NULL, &hooks); |
| 3277 | |
| 3278 | lttv_trace_find_hook(ts->parent.t, |
| 3279 | LTT_FACILITY_KERNEL_ARCH, |
| 3280 | LTT_EVENT_KTHREAD_CREATE, |
| 3281 | FIELD_ARRAY(LTT_FIELD_PID), |
| 3282 | process_kernel_thread, NULL, &hooks); |
| 3283 | |
| 3284 | lttv_trace_find_hook(ts->parent.t, |
| 3285 | LTT_FACILITY_KERNEL, |
| 3286 | LTT_EVENT_PROCESS_EXIT, |
| 3287 | FIELD_ARRAY(LTT_FIELD_PID), |
| 3288 | process_exit, NULL, &hooks); |
| 3289 | |
| 3290 | lttv_trace_find_hook(ts->parent.t, |
| 3291 | LTT_FACILITY_KERNEL, |
| 3292 | LTT_EVENT_PROCESS_FREE, |
| 3293 | FIELD_ARRAY(LTT_FIELD_PID), |
| 3294 | process_free, NULL, &hooks); |
| 3295 | |
| 3296 | lttv_trace_find_hook(ts->parent.t, |
| 3297 | LTT_FACILITY_FS, |
| 3298 | LTT_EVENT_EXEC, |
| 3299 | FIELD_ARRAY(LTT_FIELD_FILENAME), |
| 3300 | process_exec, NULL, &hooks); |
| 3301 | |
| 3302 | lttv_trace_find_hook(ts->parent.t, |
| 3303 | LTT_FACILITY_USER_GENERIC, |
| 3304 | LTT_EVENT_THREAD_BRAND, |
| 3305 | FIELD_ARRAY(LTT_FIELD_NAME), |
| 3306 | thread_brand, NULL, &hooks); |
| 3307 | |
| 3308 | /* statedump-related hooks */ |
| 3309 | lttv_trace_find_hook(ts->parent.t, |
| 3310 | LTT_FACILITY_LIST, |
| 3311 | LTT_EVENT_PROCESS_STATE, |
| 3312 | FIELD_ARRAY(LTT_FIELD_PID, LTT_FIELD_PARENT_PID, LTT_FIELD_NAME, |
| 3313 | LTT_FIELD_TYPE, LTT_FIELD_MODE, LTT_FIELD_SUBMODE, |
| 3314 | LTT_FIELD_STATUS, LTT_FIELD_TGID), |
| 3315 | enum_process_state, NULL, &hooks); |
| 3316 | |
| 3317 | lttv_trace_find_hook(ts->parent.t, |
| 3318 | LTT_FACILITY_LIST, |
| 3319 | LTT_EVENT_STATEDUMP_END, |
| 3320 | NULL, |
| 3321 | statedump_end, NULL, &hooks); |
| 3322 | |
| 3323 | lttv_trace_find_hook(ts->parent.t, |
| 3324 | LTT_FACILITY_LIST, |
| 3325 | LTT_EVENT_LIST_INTERRUPT, |
| 3326 | FIELD_ARRAY(LTT_FIELD_ACTION, LTT_FIELD_IRQ_ID), |
| 3327 | enum_interrupt, NULL, &hooks); |
| 3328 | |
| 3329 | lttv_trace_find_hook(ts->parent.t, |
| 3330 | LTT_FACILITY_BLOCK, |
| 3331 | LTT_EVENT_REQUEST_ISSUE, |
| 3332 | FIELD_ARRAY(LTT_FIELD_MAJOR, LTT_FIELD_MINOR, LTT_FIELD_OPERATION), |
| 3333 | bdev_request_issue, NULL, &hooks); |
| 3334 | |
| 3335 | lttv_trace_find_hook(ts->parent.t, |
| 3336 | LTT_FACILITY_BLOCK, |
| 3337 | LTT_EVENT_REQUEST_COMPLETE, |
| 3338 | FIELD_ARRAY(LTT_FIELD_MAJOR, LTT_FIELD_MINOR, LTT_FIELD_OPERATION), |
| 3339 | bdev_request_complete, NULL, &hooks); |
| 3340 | |
| 3341 | lttv_trace_find_hook(ts->parent.t, |
| 3342 | LTT_FACILITY_USER_GENERIC, |
| 3343 | LTT_EVENT_FUNCTION_ENTRY, |
| 3344 | FIELD_ARRAY(LTT_FIELD_THIS_FN, LTT_FIELD_CALL_SITE), |
| 3345 | function_entry, NULL, &hooks); |
| 3346 | |
| 3347 | lttv_trace_find_hook(ts->parent.t, |
| 3348 | LTT_FACILITY_USER_GENERIC, |
| 3349 | LTT_EVENT_FUNCTION_EXIT, |
| 3350 | FIELD_ARRAY(LTT_FIELD_THIS_FN, LTT_FIELD_CALL_SITE), |
| 3351 | function_exit, NULL, &hooks); |
| 3352 | |
| 3353 | /* Add these hooks to each event_by_id hooks list */ |
| 3354 | |
| 3355 | nb_tracefile = ts->parent.tracefiles->len; |
| 3356 | |
| 3357 | for(j = 0 ; j < nb_tracefile ; j++) { |
| 3358 | tfs = |
| 3359 | LTTV_TRACEFILE_STATE(g_array_index(ts->parent.tracefiles, |
| 3360 | LttvTracefileContext*, j)); |
| 3361 | |
| 3362 | for(k = 0 ; k < hooks->len ; k++) { |
| 3363 | th = &g_array_index(hooks, LttvTraceHook, k); |
| 3364 | lttv_hooks_add( |
| 3365 | lttv_hooks_by_id_find(tfs->parent.event_by_id, th->id), |
| 3366 | th->h, |
| 3367 | th, |
| 3368 | LTTV_PRIO_STATE); |
| 3369 | } |
| 3370 | } |
| 3371 | lttv_attribute_find(ts->parent.a, LTTV_STATE_HOOKS, LTTV_POINTER, &val); |
| 3372 | *(val.v_pointer) = hooks; |
| 3373 | } |
| 3374 | } |
| 3375 | |
| 3376 | gint lttv_state_hook_remove_event_hooks(void *hook_data, void *call_data) |
| 3377 | { |
| 3378 | LttvTracesetState *tss = (LttvTracesetState*)(call_data); |
| 3379 | |
| 3380 | lttv_state_remove_event_hooks(tss); |
| 3381 | |
| 3382 | return 0; |
| 3383 | } |
| 3384 | |
| 3385 | void lttv_state_remove_event_hooks(LttvTracesetState *self) |
| 3386 | { |
| 3387 | LttvTraceset *traceset = self->parent.ts; |
| 3388 | |
| 3389 | guint i, j, k, nb_trace, nb_tracefile; |
| 3390 | |
| 3391 | LttvTraceState *ts; |
| 3392 | |
| 3393 | LttvTracefileState *tfs; |
| 3394 | |
| 3395 | GArray *hooks; |
| 3396 | |
| 3397 | LttvTraceHook *th; |
| 3398 | |
| 3399 | LttvAttributeValue val; |
| 3400 | |
| 3401 | nb_trace = lttv_traceset_number(traceset); |
| 3402 | for(i = 0 ; i < nb_trace ; i++) { |
| 3403 | ts = LTTV_TRACE_STATE(self->parent.traces[i]); |
| 3404 | |
| 3405 | lttv_attribute_find(ts->parent.a, LTTV_STATE_HOOKS, LTTV_POINTER, &val); |
| 3406 | hooks = *(val.v_pointer); |
| 3407 | |
| 3408 | /* Remove these hooks from each event_by_id hooks list */ |
| 3409 | |
| 3410 | nb_tracefile = ts->parent.tracefiles->len; |
| 3411 | |
| 3412 | for(j = 0 ; j < nb_tracefile ; j++) { |
| 3413 | tfs = |
| 3414 | LTTV_TRACEFILE_STATE(g_array_index(ts->parent.tracefiles, |
| 3415 | LttvTracefileContext*, j)); |
| 3416 | |
| 3417 | for(k = 0 ; k < hooks->len ; k++) { |
| 3418 | th = &g_array_index(hooks, LttvTraceHook, k); |
| 3419 | lttv_hooks_remove_data( |
| 3420 | lttv_hooks_by_id_find(tfs->parent.event_by_id, th->id), |
| 3421 | th->h, |
| 3422 | th); |
| 3423 | } |
| 3424 | } |
| 3425 | lttv_trace_hook_remove_all(&hooks); |
| 3426 | g_array_free(hooks, TRUE); |
| 3427 | } |
| 3428 | } |
| 3429 | |
| 3430 | static gboolean state_save_event_hook(void *hook_data, void *call_data) |
| 3431 | { |
| 3432 | guint *event_count = (guint*)hook_data; |
| 3433 | |
| 3434 | /* Only save at LTTV_STATE_SAVE_INTERVAL */ |
| 3435 | if(likely((*event_count)++ < LTTV_STATE_SAVE_INTERVAL)) |
| 3436 | return FALSE; |
| 3437 | else |
| 3438 | *event_count = 0; |
| 3439 | |
| 3440 | LttvTracefileState *self = (LttvTracefileState *)call_data; |
| 3441 | |
| 3442 | LttvTraceState *tcs = (LttvTraceState *)(self->parent.t_context); |
| 3443 | |
| 3444 | LttvAttribute *saved_states_tree, *saved_state_tree; |
| 3445 | |
| 3446 | LttvAttributeValue value; |
| 3447 | |
| 3448 | saved_states_tree = lttv_attribute_find_subdir(tcs->parent.t_a, |
| 3449 | LTTV_STATE_SAVED_STATES); |
| 3450 | saved_state_tree = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL); |
| 3451 | value = lttv_attribute_add(saved_states_tree, |
| 3452 | lttv_attribute_get_number(saved_states_tree), LTTV_GOBJECT); |
| 3453 | *(value.v_gobject) = (GObject *)saved_state_tree; |
| 3454 | value = lttv_attribute_add(saved_state_tree, LTTV_STATE_TIME, LTTV_TIME); |
| 3455 | *(value.v_time) = self->parent.timestamp; |
| 3456 | lttv_state_save(tcs, saved_state_tree); |
| 3457 | g_debug("Saving state at time %lu.%lu", self->parent.timestamp.tv_sec, |
| 3458 | self->parent.timestamp.tv_nsec); |
| 3459 | |
| 3460 | *(tcs->max_time_state_recomputed_in_seek) = self->parent.timestamp; |
| 3461 | |
| 3462 | return FALSE; |
| 3463 | } |
| 3464 | |
| 3465 | static gboolean state_save_after_trace_hook(void *hook_data, void *call_data) |
| 3466 | { |
| 3467 | LttvTraceState *tcs = (LttvTraceState *)(call_data); |
| 3468 | |
| 3469 | *(tcs->max_time_state_recomputed_in_seek) = tcs->parent.time_span.end_time; |
| 3470 | |
| 3471 | return FALSE; |
| 3472 | } |
| 3473 | |
| 3474 | guint lttv_state_current_cpu(LttvTracefileState *tfs) |
| 3475 | { |
| 3476 | return tfs->cpu; |
| 3477 | } |
| 3478 | |
| 3479 | |
| 3480 | |
| 3481 | #if 0 |
| 3482 | static gboolean block_start(void *hook_data, void *call_data) |
| 3483 | { |
| 3484 | LttvTracefileState *self = (LttvTracefileState *)call_data; |
| 3485 | |
| 3486 | LttvTracefileState *tfcs; |
| 3487 | |
| 3488 | LttvTraceState *tcs = (LttvTraceState *)(self->parent.t_context); |
| 3489 | |
| 3490 | LttEventPosition *ep; |
| 3491 | |
| 3492 | guint i, nb_block, nb_event, nb_tracefile; |
| 3493 | |
| 3494 | LttTracefile *tf; |
| 3495 | |
| 3496 | LttvAttribute *saved_states_tree, *saved_state_tree; |
| 3497 | |
| 3498 | LttvAttributeValue value; |
| 3499 | |
| 3500 | ep = ltt_event_position_new(); |
| 3501 | |
| 3502 | nb_tracefile = tcs->parent.tracefiles->len; |
| 3503 | |
| 3504 | /* Count the number of events added since the last block end in any |
| 3505 | tracefile. */ |
| 3506 | |
| 3507 | for(i = 0 ; i < nb_tracefile ; i++) { |
| 3508 | tfcs = |
| 3509 | LTTV_TRACEFILE_STATE(&g_array_index(tcs->parent.tracefiles, |
| 3510 | LttvTracefileContext, i)); |
| 3511 | ltt_event_position(tfcs->parent.e, ep); |
| 3512 | ltt_event_position_get(ep, &nb_block, &nb_event, &tf); |
| 3513 | tcs->nb_event += nb_event - tfcs->saved_position; |
| 3514 | tfcs->saved_position = nb_event; |
| 3515 | } |
| 3516 | g_free(ep); |
| 3517 | |
| 3518 | if(tcs->nb_event >= tcs->save_interval) { |
| 3519 | saved_states_tree = lttv_attribute_find_subdir(tcs->parent.t_a, |
| 3520 | LTTV_STATE_SAVED_STATES); |
| 3521 | saved_state_tree = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL); |
| 3522 | value = lttv_attribute_add(saved_states_tree, |
| 3523 | lttv_attribute_get_number(saved_states_tree), LTTV_GOBJECT); |
| 3524 | *(value.v_gobject) = (GObject *)saved_state_tree; |
| 3525 | value = lttv_attribute_add(saved_state_tree, LTTV_STATE_TIME, LTTV_TIME); |
| 3526 | *(value.v_time) = self->parent.timestamp; |
| 3527 | lttv_state_save(tcs, saved_state_tree); |
| 3528 | tcs->nb_event = 0; |
| 3529 | g_debug("Saving state at time %lu.%lu", self->parent.timestamp.tv_sec, |
| 3530 | self->parent.timestamp.tv_nsec); |
| 3531 | } |
| 3532 | *(tcs->max_time_state_recomputed_in_seek) = self->parent.timestamp; |
| 3533 | return FALSE; |
| 3534 | } |
| 3535 | #endif //0 |
| 3536 | |
| 3537 | #if 0 |
| 3538 | static gboolean block_end(void *hook_data, void *call_data) |
| 3539 | { |
| 3540 | LttvTracefileState *self = (LttvTracefileState *)call_data; |
| 3541 | |
| 3542 | LttvTraceState *tcs = (LttvTraceState *)(self->parent.t_context); |
| 3543 | |
| 3544 | LttTracefile *tf; |
| 3545 | |
| 3546 | LttEventPosition *ep; |
| 3547 | |
| 3548 | guint nb_block, nb_event; |
| 3549 | |
| 3550 | ep = ltt_event_position_new(); |
| 3551 | ltt_event_position(self->parent.e, ep); |
| 3552 | ltt_event_position_get(ep, &nb_block, &nb_event, &tf); |
| 3553 | tcs->nb_event += nb_event - self->saved_position + 1; |
| 3554 | self->saved_position = 0; |
| 3555 | *(tcs->max_time_state_recomputed_in_seek) = self->parent.timestamp; |
| 3556 | g_free(ep); |
| 3557 | |
| 3558 | return FALSE; |
| 3559 | } |
| 3560 | #endif //0 |
| 3561 | #if 0 |
| 3562 | void lttv_state_save_add_event_hooks(LttvTracesetState *self) |
| 3563 | { |
| 3564 | LttvTraceset *traceset = self->parent.ts; |
| 3565 | |
| 3566 | guint i, j, nb_trace, nb_tracefile; |
| 3567 | |
| 3568 | LttvTraceState *ts; |
| 3569 | |
| 3570 | LttvTracefileState *tfs; |
| 3571 | |
| 3572 | LttvTraceHook hook_start, hook_end; |
| 3573 | |
| 3574 | nb_trace = lttv_traceset_number(traceset); |
| 3575 | for(i = 0 ; i < nb_trace ; i++) { |
| 3576 | ts = (LttvTraceState *)self->parent.traces[i]; |
| 3577 | |
| 3578 | lttv_trace_find_hook(ts->parent.t, "core","block_start",NULL, |
| 3579 | NULL, NULL, block_start, &hook_start); |
| 3580 | lttv_trace_find_hook(ts->parent.t, "core","block_end",NULL, |
| 3581 | NULL, NULL, block_end, &hook_end); |
| 3582 | |
| 3583 | nb_tracefile = ts->parent.tracefiles->len; |
| 3584 | |
| 3585 | for(j = 0 ; j < nb_tracefile ; j++) { |
| 3586 | tfs = |
| 3587 | LTTV_TRACEFILE_STATE(&g_array_index(ts->parent.tracefiles, |
| 3588 | LttvTracefileContext, j)); |
| 3589 | lttv_hooks_add(lttv_hooks_by_id_find(tfs->parent.event_by_id, |
| 3590 | hook_start.id), hook_start.h, NULL, LTTV_PRIO_STATE); |
| 3591 | lttv_hooks_add(lttv_hooks_by_id_find(tfs->parent.event_by_id, |
| 3592 | hook_end.id), hook_end.h, NULL, LTTV_PRIO_STATE); |
| 3593 | } |
| 3594 | } |
| 3595 | } |
| 3596 | #endif //0 |
| 3597 | |
| 3598 | void lttv_state_save_add_event_hooks(LttvTracesetState *self) |
| 3599 | { |
| 3600 | LttvTraceset *traceset = self->parent.ts; |
| 3601 | |
| 3602 | guint i, j, nb_trace, nb_tracefile; |
| 3603 | |
| 3604 | LttvTraceState *ts; |
| 3605 | |
| 3606 | LttvTracefileState *tfs; |
| 3607 | |
| 3608 | |
| 3609 | nb_trace = lttv_traceset_number(traceset); |
| 3610 | for(i = 0 ; i < nb_trace ; i++) { |
| 3611 | |
| 3612 | ts = (LttvTraceState *)self->parent.traces[i]; |
| 3613 | nb_tracefile = ts->parent.tracefiles->len; |
| 3614 | |
| 3615 | if(ts->has_precomputed_states) continue; |
| 3616 | |
| 3617 | guint *event_count = g_new(guint, 1); |
| 3618 | *event_count = 0; |
| 3619 | |
| 3620 | for(j = 0 ; j < nb_tracefile ; j++) { |
| 3621 | tfs = |
| 3622 | LTTV_TRACEFILE_STATE(g_array_index(ts->parent.tracefiles, |
| 3623 | LttvTracefileContext*, j)); |
| 3624 | lttv_hooks_add(tfs->parent.event, |
| 3625 | state_save_event_hook, |
| 3626 | event_count, |
| 3627 | LTTV_PRIO_STATE); |
| 3628 | |
| 3629 | } |
| 3630 | } |
| 3631 | |
| 3632 | lttv_process_traceset_begin(&self->parent, |
| 3633 | NULL, NULL, NULL, NULL, NULL); |
| 3634 | |
| 3635 | } |
| 3636 | |
| 3637 | gint lttv_state_save_hook_add_event_hooks(void *hook_data, void *call_data) |
| 3638 | { |
| 3639 | LttvTracesetState *tss = (LttvTracesetState*)(call_data); |
| 3640 | |
| 3641 | lttv_state_save_add_event_hooks(tss); |
| 3642 | |
| 3643 | return 0; |
| 3644 | } |
| 3645 | |
| 3646 | |
| 3647 | #if 0 |
| 3648 | void lttv_state_save_remove_event_hooks(LttvTracesetState *self) |
| 3649 | { |
| 3650 | LttvTraceset *traceset = self->parent.ts; |
| 3651 | |
| 3652 | guint i, j, nb_trace, nb_tracefile; |
| 3653 | |
| 3654 | LttvTraceState *ts; |
| 3655 | |
| 3656 | LttvTracefileState *tfs; |
| 3657 | |
| 3658 | LttvTraceHook hook_start, hook_end; |
| 3659 | |
| 3660 | nb_trace = lttv_traceset_number(traceset); |
| 3661 | for(i = 0 ; i < nb_trace ; i++) { |
| 3662 | ts = LTTV_TRACE_STATE(self->parent.traces[i]); |
| 3663 | |
| 3664 | lttv_trace_find_hook(ts->parent.t, "core","block_start",NULL, |
| 3665 | NULL, NULL, block_start, &hook_start); |
| 3666 | |
| 3667 | lttv_trace_find_hook(ts->parent.t, "core","block_end",NULL, |
| 3668 | NULL, NULL, block_end, &hook_end); |
| 3669 | |
| 3670 | nb_tracefile = ts->parent.tracefiles->len; |
| 3671 | |
| 3672 | for(j = 0 ; j < nb_tracefile ; j++) { |
| 3673 | tfs = |
| 3674 | LTTV_TRACEFILE_STATE(&g_array_index(ts->parent.tracefiles, |
| 3675 | LttvTracefileContext, j)); |
| 3676 | lttv_hooks_remove_data(lttv_hooks_by_id_find( |
| 3677 | tfs->parent.event_by_id, hook_start.id), hook_start.h, NULL); |
| 3678 | lttv_hooks_remove_data(lttv_hooks_by_id_find( |
| 3679 | tfs->parent.event_by_id, hook_end.id), hook_end.h, NULL); |
| 3680 | } |
| 3681 | } |
| 3682 | } |
| 3683 | #endif //0 |
| 3684 | |
| 3685 | void lttv_state_save_remove_event_hooks(LttvTracesetState *self) |
| 3686 | { |
| 3687 | LttvTraceset *traceset = self->parent.ts; |
| 3688 | |
| 3689 | guint i, j, nb_trace, nb_tracefile; |
| 3690 | |
| 3691 | LttvTraceState *ts; |
| 3692 | |
| 3693 | LttvTracefileState *tfs; |
| 3694 | |
| 3695 | LttvHooks *after_trace = lttv_hooks_new(); |
| 3696 | |
| 3697 | lttv_hooks_add(after_trace, |
| 3698 | state_save_after_trace_hook, |
| 3699 | NULL, |
| 3700 | LTTV_PRIO_STATE); |
| 3701 | |
| 3702 | |
| 3703 | lttv_process_traceset_end(&self->parent, |
| 3704 | NULL, after_trace, NULL, NULL, NULL); |
| 3705 | |
| 3706 | lttv_hooks_destroy(after_trace); |
| 3707 | |
| 3708 | nb_trace = lttv_traceset_number(traceset); |
| 3709 | for(i = 0 ; i < nb_trace ; i++) { |
| 3710 | |
| 3711 | ts = (LttvTraceState *)self->parent.traces[i]; |
| 3712 | nb_tracefile = ts->parent.tracefiles->len; |
| 3713 | |
| 3714 | if(ts->has_precomputed_states) continue; |
| 3715 | |
| 3716 | guint *event_count = NULL; |
| 3717 | |
| 3718 | for(j = 0 ; j < nb_tracefile ; j++) { |
| 3719 | tfs = |
| 3720 | LTTV_TRACEFILE_STATE(g_array_index(ts->parent.tracefiles, |
| 3721 | LttvTracefileContext*, j)); |
| 3722 | event_count = lttv_hooks_remove(tfs->parent.event, |
| 3723 | state_save_event_hook); |
| 3724 | } |
| 3725 | if(event_count) g_free(event_count); |
| 3726 | } |
| 3727 | } |
| 3728 | |
| 3729 | gint lttv_state_save_hook_remove_event_hooks(void *hook_data, void *call_data) |
| 3730 | { |
| 3731 | LttvTracesetState *tss = (LttvTracesetState*)(call_data); |
| 3732 | |
| 3733 | lttv_state_save_remove_event_hooks(tss); |
| 3734 | |
| 3735 | return 0; |
| 3736 | } |
| 3737 | |
| 3738 | void lttv_state_traceset_seek_time_closest(LttvTracesetState *self, LttTime t) |
| 3739 | { |
| 3740 | LttvTraceset *traceset = self->parent.ts; |
| 3741 | |
| 3742 | guint i, nb_trace; |
| 3743 | |
| 3744 | int min_pos, mid_pos, max_pos; |
| 3745 | |
| 3746 | guint call_rest = 0; |
| 3747 | |
| 3748 | LttvTraceState *tcs; |
| 3749 | |
| 3750 | LttvAttributeValue value; |
| 3751 | |
| 3752 | LttvAttributeType type; |
| 3753 | |
| 3754 | LttvAttributeName name; |
| 3755 | |
| 3756 | gboolean is_named; |
| 3757 | |
| 3758 | LttvAttribute *saved_states_tree, *saved_state_tree, *closest_tree; |
| 3759 | |
| 3760 | //g_tree_destroy(self->parent.pqueue); |
| 3761 | //self->parent.pqueue = g_tree_new(compare_tracefile); |
| 3762 | |
| 3763 | g_info("Entering seek_time_closest for time %lu.%lu", t.tv_sec, t.tv_nsec); |
| 3764 | |
| 3765 | nb_trace = lttv_traceset_number(traceset); |
| 3766 | for(i = 0 ; i < nb_trace ; i++) { |
| 3767 | tcs = (LttvTraceState *)self->parent.traces[i]; |
| 3768 | |
| 3769 | if(ltt_time_compare(t, *(tcs->max_time_state_recomputed_in_seek)) < 0) { |
| 3770 | saved_states_tree = lttv_attribute_find_subdir(tcs->parent.t_a, |
| 3771 | LTTV_STATE_SAVED_STATES); |
| 3772 | min_pos = -1; |
| 3773 | |
| 3774 | if(saved_states_tree) { |
| 3775 | max_pos = lttv_attribute_get_number(saved_states_tree) - 1; |
| 3776 | mid_pos = max_pos / 2; |
| 3777 | while(min_pos < max_pos) { |
| 3778 | type = lttv_attribute_get(saved_states_tree, mid_pos, &name, &value, |
| 3779 | &is_named); |
| 3780 | g_assert(type == LTTV_GOBJECT); |
| 3781 | saved_state_tree = *((LttvAttribute **)(value.v_gobject)); |
| 3782 | type = lttv_attribute_get_by_name(saved_state_tree, LTTV_STATE_TIME, |
| 3783 | &value); |
| 3784 | g_assert(type == LTTV_TIME); |
| 3785 | if(ltt_time_compare(*(value.v_time), t) < 0) { |
| 3786 | min_pos = mid_pos; |
| 3787 | closest_tree = saved_state_tree; |
| 3788 | } |
| 3789 | else max_pos = mid_pos - 1; |
| 3790 | |
| 3791 | mid_pos = (min_pos + max_pos + 1) / 2; |
| 3792 | } |
| 3793 | } |
| 3794 | |
| 3795 | /* restore the closest earlier saved state */ |
| 3796 | if(min_pos != -1) { |
| 3797 | lttv_state_restore(tcs, closest_tree); |
| 3798 | call_rest = 1; |
| 3799 | } |
| 3800 | |
| 3801 | /* There is no saved state, yet we want to have it. Restart at T0 */ |
| 3802 | else { |
| 3803 | restore_init_state(tcs); |
| 3804 | lttv_process_trace_seek_time(&(tcs->parent), ltt_time_zero); |
| 3805 | } |
| 3806 | } |
| 3807 | /* We want to seek quickly without restoring/updating the state */ |
| 3808 | else { |
| 3809 | restore_init_state(tcs); |
| 3810 | lttv_process_trace_seek_time(&(tcs->parent), t); |
| 3811 | } |
| 3812 | } |
| 3813 | if(!call_rest) g_info("NOT Calling restore"); |
| 3814 | } |
| 3815 | |
| 3816 | |
| 3817 | static void |
| 3818 | traceset_state_instance_init (GTypeInstance *instance, gpointer g_class) |
| 3819 | { |
| 3820 | } |
| 3821 | |
| 3822 | |
| 3823 | static void |
| 3824 | traceset_state_finalize (LttvTracesetState *self) |
| 3825 | { |
| 3826 | G_OBJECT_CLASS(g_type_class_peek(LTTV_TRACESET_CONTEXT_TYPE))-> |
| 3827 | finalize(G_OBJECT(self)); |
| 3828 | } |
| 3829 | |
| 3830 | |
| 3831 | static void |
| 3832 | traceset_state_class_init (LttvTracesetContextClass *klass) |
| 3833 | { |
| 3834 | GObjectClass *gobject_class = G_OBJECT_CLASS(klass); |
| 3835 | |
| 3836 | gobject_class->finalize = (void (*)(GObject *self)) traceset_state_finalize; |
| 3837 | klass->init = (void (*)(LttvTracesetContext *self, LttvTraceset *ts))init; |
| 3838 | klass->fini = (void (*)(LttvTracesetContext *self))fini; |
| 3839 | klass->new_traceset_context = new_traceset_context; |
| 3840 | klass->new_trace_context = new_trace_context; |
| 3841 | klass->new_tracefile_context = new_tracefile_context; |
| 3842 | } |
| 3843 | |
| 3844 | |
| 3845 | GType |
| 3846 | lttv_traceset_state_get_type(void) |
| 3847 | { |
| 3848 | static GType type = 0; |
| 3849 | if (type == 0) { |
| 3850 | static const GTypeInfo info = { |
| 3851 | sizeof (LttvTracesetStateClass), |
| 3852 | NULL, /* base_init */ |
| 3853 | NULL, /* base_finalize */ |
| 3854 | (GClassInitFunc) traceset_state_class_init, /* class_init */ |
| 3855 | NULL, /* class_finalize */ |
| 3856 | NULL, /* class_data */ |
| 3857 | sizeof (LttvTracesetState), |
| 3858 | 0, /* n_preallocs */ |
| 3859 | (GInstanceInitFunc) traceset_state_instance_init, /* instance_init */ |
| 3860 | NULL /* value handling */ |
| 3861 | }; |
| 3862 | |
| 3863 | type = g_type_register_static (LTTV_TRACESET_CONTEXT_TYPE, "LttvTracesetStateType", |
| 3864 | &info, 0); |
| 3865 | } |
| 3866 | return type; |
| 3867 | } |
| 3868 | |
| 3869 | |
| 3870 | static void |
| 3871 | trace_state_instance_init (GTypeInstance *instance, gpointer g_class) |
| 3872 | { |
| 3873 | } |
| 3874 | |
| 3875 | |
| 3876 | static void |
| 3877 | trace_state_finalize (LttvTraceState *self) |
| 3878 | { |
| 3879 | G_OBJECT_CLASS(g_type_class_peek(LTTV_TRACE_CONTEXT_TYPE))-> |
| 3880 | finalize(G_OBJECT(self)); |
| 3881 | } |
| 3882 | |
| 3883 | |
| 3884 | static void |
| 3885 | trace_state_class_init (LttvTraceStateClass *klass) |
| 3886 | { |
| 3887 | GObjectClass *gobject_class = G_OBJECT_CLASS(klass); |
| 3888 | |
| 3889 | gobject_class->finalize = (void (*)(GObject *self)) trace_state_finalize; |
| 3890 | klass->state_save = state_save; |
| 3891 | klass->state_restore = state_restore; |
| 3892 | klass->state_saved_free = state_saved_free; |
| 3893 | } |
| 3894 | |
| 3895 | |
| 3896 | GType |
| 3897 | lttv_trace_state_get_type(void) |
| 3898 | { |
| 3899 | static GType type = 0; |
| 3900 | if (type == 0) { |
| 3901 | static const GTypeInfo info = { |
| 3902 | sizeof (LttvTraceStateClass), |
| 3903 | NULL, /* base_init */ |
| 3904 | NULL, /* base_finalize */ |
| 3905 | (GClassInitFunc) trace_state_class_init, /* class_init */ |
| 3906 | NULL, /* class_finalize */ |
| 3907 | NULL, /* class_data */ |
| 3908 | sizeof (LttvTraceState), |
| 3909 | 0, /* n_preallocs */ |
| 3910 | (GInstanceInitFunc) trace_state_instance_init, /* instance_init */ |
| 3911 | NULL /* value handling */ |
| 3912 | }; |
| 3913 | |
| 3914 | type = g_type_register_static (LTTV_TRACE_CONTEXT_TYPE, |
| 3915 | "LttvTraceStateType", &info, 0); |
| 3916 | } |
| 3917 | return type; |
| 3918 | } |
| 3919 | |
| 3920 | |
| 3921 | static void |
| 3922 | tracefile_state_instance_init (GTypeInstance *instance, gpointer g_class) |
| 3923 | { |
| 3924 | } |
| 3925 | |
| 3926 | |
| 3927 | static void |
| 3928 | tracefile_state_finalize (LttvTracefileState *self) |
| 3929 | { |
| 3930 | G_OBJECT_CLASS(g_type_class_peek(LTTV_TRACEFILE_CONTEXT_TYPE))-> |
| 3931 | finalize(G_OBJECT(self)); |
| 3932 | } |
| 3933 | |
| 3934 | |
| 3935 | static void |
| 3936 | tracefile_state_class_init (LttvTracefileStateClass *klass) |
| 3937 | { |
| 3938 | GObjectClass *gobject_class = G_OBJECT_CLASS(klass); |
| 3939 | |
| 3940 | gobject_class->finalize = (void (*)(GObject *self)) tracefile_state_finalize; |
| 3941 | } |
| 3942 | |
| 3943 | |
| 3944 | GType |
| 3945 | lttv_tracefile_state_get_type(void) |
| 3946 | { |
| 3947 | static GType type = 0; |
| 3948 | if (type == 0) { |
| 3949 | static const GTypeInfo info = { |
| 3950 | sizeof (LttvTracefileStateClass), |
| 3951 | NULL, /* base_init */ |
| 3952 | NULL, /* base_finalize */ |
| 3953 | (GClassInitFunc) tracefile_state_class_init, /* class_init */ |
| 3954 | NULL, /* class_finalize */ |
| 3955 | NULL, /* class_data */ |
| 3956 | sizeof (LttvTracefileState), |
| 3957 | 0, /* n_preallocs */ |
| 3958 | (GInstanceInitFunc) tracefile_state_instance_init, /* instance_init */ |
| 3959 | NULL /* value handling */ |
| 3960 | }; |
| 3961 | |
| 3962 | type = g_type_register_static (LTTV_TRACEFILE_CONTEXT_TYPE, |
| 3963 | "LttvTracefileStateType", &info, 0); |
| 3964 | } |
| 3965 | return type; |
| 3966 | } |
| 3967 | |
| 3968 | |
| 3969 | static void module_init() |
| 3970 | { |
| 3971 | LTTV_STATE_UNNAMED = g_quark_from_string(""); |
| 3972 | LTTV_STATE_UNBRANDED = g_quark_from_string(""); |
| 3973 | LTTV_STATE_MODE_UNKNOWN = g_quark_from_string("MODE_UNKNOWN"); |
| 3974 | LTTV_STATE_USER_MODE = g_quark_from_string("USER_MODE"); |
| 3975 | LTTV_STATE_SYSCALL = g_quark_from_string("SYSCALL"); |
| 3976 | LTTV_STATE_TRAP = g_quark_from_string("TRAP"); |
| 3977 | LTTV_STATE_IRQ = g_quark_from_string("IRQ"); |
| 3978 | LTTV_STATE_SOFT_IRQ = g_quark_from_string("SOFTIRQ"); |
| 3979 | LTTV_STATE_SUBMODE_UNKNOWN = g_quark_from_string("UNKNOWN"); |
| 3980 | LTTV_STATE_SUBMODE_NONE = g_quark_from_string("NONE"); |
| 3981 | LTTV_STATE_WAIT_FORK = g_quark_from_string("WAIT_FORK"); |
| 3982 | LTTV_STATE_WAIT_CPU = g_quark_from_string("WAIT_CPU"); |
| 3983 | LTTV_STATE_EXIT = g_quark_from_string("EXIT"); |
| 3984 | LTTV_STATE_ZOMBIE = g_quark_from_string("ZOMBIE"); |
| 3985 | LTTV_STATE_WAIT = g_quark_from_string("WAIT"); |
| 3986 | LTTV_STATE_RUN = g_quark_from_string("RUN"); |
| 3987 | LTTV_STATE_DEAD = g_quark_from_string("DEAD"); |
| 3988 | LTTV_STATE_USER_THREAD = g_quark_from_string("USER_THREAD"); |
| 3989 | LTTV_STATE_KERNEL_THREAD = g_quark_from_string("KERNEL_THREAD"); |
| 3990 | LTTV_STATE_TRACEFILES = g_quark_from_string("tracefiles"); |
| 3991 | LTTV_STATE_PROCESSES = g_quark_from_string("processes"); |
| 3992 | LTTV_STATE_PROCESS = g_quark_from_string("process"); |
| 3993 | LTTV_STATE_RUNNING_PROCESS = g_quark_from_string("running_process"); |
| 3994 | LTTV_STATE_EVENT = g_quark_from_string("event"); |
| 3995 | LTTV_STATE_SAVED_STATES = g_quark_from_string("saved states"); |
| 3996 | LTTV_STATE_SAVED_STATES_TIME = g_quark_from_string("saved states time"); |
| 3997 | LTTV_STATE_TIME = g_quark_from_string("time"); |
| 3998 | LTTV_STATE_HOOKS = g_quark_from_string("saved state hooks"); |
| 3999 | LTTV_STATE_NAME_TABLES = g_quark_from_string("name tables"); |
| 4000 | LTTV_STATE_TRACE_STATE_USE_COUNT = |
| 4001 | g_quark_from_string("trace_state_use_count"); |
| 4002 | LTTV_STATE_RESOURCE_CPUS = g_quark_from_string("cpu resource states"); |
| 4003 | LTTV_STATE_RESOURCE_CPUS = g_quark_from_string("cpu count"); |
| 4004 | LTTV_STATE_RESOURCE_IRQS = g_quark_from_string("irq resource states"); |
| 4005 | LTTV_STATE_RESOURCE_SOFT_IRQS = g_quark_from_string("soft irq resource states"); |
| 4006 | LTTV_STATE_RESOURCE_TRAPS = g_quark_from_string("trap resource states"); |
| 4007 | LTTV_STATE_RESOURCE_BLKDEVS = g_quark_from_string("blkdevs resource states"); |
| 4008 | |
| 4009 | |
| 4010 | LTT_FACILITY_KERNEL = g_quark_from_string("kernel"); |
| 4011 | LTT_FACILITY_KERNEL_ARCH = g_quark_from_string("kernel_arch"); |
| 4012 | LTT_FACILITY_FS = g_quark_from_string("fs"); |
| 4013 | LTT_FACILITY_LIST = g_quark_from_string("list"); |
| 4014 | LTT_FACILITY_USER_GENERIC = g_quark_from_string("user_generic"); |
| 4015 | LTT_FACILITY_BLOCK = g_quark_from_string("block"); |
| 4016 | |
| 4017 | |
| 4018 | LTT_EVENT_SYSCALL_ENTRY = g_quark_from_string("syscall_entry"); |
| 4019 | LTT_EVENT_SYSCALL_EXIT = g_quark_from_string("syscall_exit"); |
| 4020 | LTT_EVENT_TRAP_ENTRY = g_quark_from_string("trap_entry"); |
| 4021 | LTT_EVENT_TRAP_EXIT = g_quark_from_string("trap_exit"); |
| 4022 | LTT_EVENT_IRQ_ENTRY = g_quark_from_string("irq_entry"); |
| 4023 | LTT_EVENT_IRQ_EXIT = g_quark_from_string("irq_exit"); |
| 4024 | LTT_EVENT_SOFT_IRQ_ENTRY = g_quark_from_string("softirq_entry"); |
| 4025 | LTT_EVENT_SOFT_IRQ_EXIT = g_quark_from_string("softirq_exit"); |
| 4026 | LTT_EVENT_SCHED_SCHEDULE = g_quark_from_string("sched_schedule"); |
| 4027 | LTT_EVENT_PROCESS_FORK = g_quark_from_string("process_fork"); |
| 4028 | LTT_EVENT_KTHREAD_CREATE = g_quark_from_string("kthread_create"); |
| 4029 | LTT_EVENT_PROCESS_EXIT = g_quark_from_string("process_exit"); |
| 4030 | LTT_EVENT_PROCESS_FREE = g_quark_from_string("process_free"); |
| 4031 | LTT_EVENT_EXEC = g_quark_from_string("exec"); |
| 4032 | LTT_EVENT_PROCESS_STATE = g_quark_from_string("process_state"); |
| 4033 | LTT_EVENT_STATEDUMP_END = g_quark_from_string("statedump_end"); |
| 4034 | LTT_EVENT_FUNCTION_ENTRY = g_quark_from_string("function_entry"); |
| 4035 | LTT_EVENT_FUNCTION_EXIT = g_quark_from_string("function_exit"); |
| 4036 | LTT_EVENT_THREAD_BRAND = g_quark_from_string("thread_brand"); |
| 4037 | LTT_EVENT_REQUEST_ISSUE = g_quark_from_string("_blk_request_issue"); |
| 4038 | LTT_EVENT_REQUEST_COMPLETE = g_quark_from_string("_blk_request_complete"); |
| 4039 | LTT_EVENT_LIST_INTERRUPT = g_quark_from_string("interrupt");; |
| 4040 | |
| 4041 | |
| 4042 | LTT_FIELD_SYSCALL_ID = g_quark_from_string("syscall_id"); |
| 4043 | LTT_FIELD_TRAP_ID = g_quark_from_string("trap_id"); |
| 4044 | LTT_FIELD_IRQ_ID = g_quark_from_string("irq_id"); |
| 4045 | LTT_FIELD_SOFT_IRQ_ID = g_quark_from_string("softirq_id"); |
| 4046 | LTT_FIELD_PREV_PID = g_quark_from_string("prev_pid"); |
| 4047 | LTT_FIELD_NEXT_PID = g_quark_from_string("next_pid"); |
| 4048 | LTT_FIELD_PREV_STATE = g_quark_from_string("prev_state"); |
| 4049 | LTT_FIELD_PARENT_PID = g_quark_from_string("parent_pid"); |
| 4050 | LTT_FIELD_CHILD_PID = g_quark_from_string("child_pid"); |
| 4051 | LTT_FIELD_PID = g_quark_from_string("pid"); |
| 4052 | LTT_FIELD_TGID = g_quark_from_string("tgid"); |
| 4053 | LTT_FIELD_CHILD_TGID = g_quark_from_string("child_tgid"); |
| 4054 | LTT_FIELD_FILENAME = g_quark_from_string("filename"); |
| 4055 | LTT_FIELD_NAME = g_quark_from_string("name"); |
| 4056 | LTT_FIELD_TYPE = g_quark_from_string("type"); |
| 4057 | LTT_FIELD_MODE = g_quark_from_string("mode"); |
| 4058 | LTT_FIELD_SUBMODE = g_quark_from_string("submode"); |
| 4059 | LTT_FIELD_STATUS = g_quark_from_string("status"); |
| 4060 | LTT_FIELD_THIS_FN = g_quark_from_string("this_fn"); |
| 4061 | LTT_FIELD_CALL_SITE = g_quark_from_string("call_site"); |
| 4062 | LTT_FIELD_MAJOR = g_quark_from_string("major"); |
| 4063 | LTT_FIELD_MINOR = g_quark_from_string("minor"); |
| 4064 | LTT_FIELD_OPERATION = g_quark_from_string("direction"); |
| 4065 | LTT_FIELD_ACTION = g_quark_from_string("action"); |
| 4066 | |
| 4067 | LTTV_CPU_UNKNOWN = g_quark_from_string("unknown"); |
| 4068 | LTTV_CPU_IDLE = g_quark_from_string("idle"); |
| 4069 | LTTV_CPU_BUSY = g_quark_from_string("busy"); |
| 4070 | LTTV_CPU_IRQ = g_quark_from_string("irq"); |
| 4071 | LTTV_CPU_SOFT_IRQ = g_quark_from_string("softirq"); |
| 4072 | LTTV_CPU_TRAP = g_quark_from_string("trap"); |
| 4073 | |
| 4074 | LTTV_IRQ_UNKNOWN = g_quark_from_string("unknown"); |
| 4075 | LTTV_IRQ_IDLE = g_quark_from_string("idle"); |
| 4076 | LTTV_IRQ_BUSY = g_quark_from_string("busy"); |
| 4077 | |
| 4078 | LTTV_BDEV_UNKNOWN = g_quark_from_string("unknown"); |
| 4079 | LTTV_BDEV_IDLE = g_quark_from_string("idle"); |
| 4080 | LTTV_BDEV_BUSY_READING = g_quark_from_string("busy_reading"); |
| 4081 | LTTV_BDEV_BUSY_WRITING = g_quark_from_string("busy_writing"); |
| 4082 | } |
| 4083 | |
| 4084 | static void module_destroy() |
| 4085 | { |
| 4086 | } |
| 4087 | |
| 4088 | |
| 4089 | LTTV_MODULE("state", "State computation", \ |
| 4090 | "Update the system state, possibly saving it at intervals", \ |
| 4091 | module_init, module_destroy) |
| 4092 | |
| 4093 | |
| 4094 | |