| 1 | /* This file is part of the Linux Trace Toolkit viewer |
| 2 | * Copyright (C) 2003-2004 Michel Dagenais |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify |
| 5 | * it under the terms of the GNU General Public License Version 2 as |
| 6 | * published by the Free Software Foundation; |
| 7 | * |
| 8 | * This program is distributed in the hope that it will be useful, |
| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 11 | * GNU General Public License for more details. |
| 12 | * |
| 13 | * You should have received a copy of the GNU General Public License |
| 14 | * along with this program; if not, write to the Free Software |
| 15 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
| 16 | * MA 02111-1307, USA. |
| 17 | */ |
| 18 | |
| 19 | #ifdef HAVE_CONFIG_H |
| 20 | #include <config.h> |
| 21 | #endif |
| 22 | |
| 23 | #include <lttv/lttv.h> |
| 24 | #include <lttv/module.h> |
| 25 | #include <lttv/state.h> |
| 26 | #include <ltt/facility.h> |
| 27 | #include <ltt/trace.h> |
| 28 | #include <ltt/event.h> |
| 29 | #include <ltt/type.h> |
| 30 | #include <stdio.h> |
| 31 | #include <string.h> |
| 32 | |
| 33 | /* Comment : |
| 34 | * Mathieu Desnoyers |
| 35 | * usertrace is there only to be able to update the current CPU of the |
| 36 | * usertraces when there is a schedchange. it is a way to link the ProcessState |
| 37 | * to the associated usertrace. Link only created upon thread creation. |
| 38 | * |
| 39 | * The cpu id is necessary : it gives us back the current ProcessState when we |
| 40 | * are considering data from the usertrace. |
| 41 | */ |
| 42 | |
| 43 | #define PREALLOCATED_EXECUTION_STACK 10 |
| 44 | |
| 45 | /* Facilities Quarks */ |
| 46 | |
| 47 | GQuark |
| 48 | LTT_FACILITY_KERNEL, |
| 49 | LTT_FACILITY_KERNEL_ARCH, |
| 50 | LTT_FACILITY_PROCESS, |
| 51 | LTT_FACILITY_FS, |
| 52 | LTT_FACILITY_STATEDUMP, |
| 53 | LTT_FACILITY_USER_GENERIC; |
| 54 | |
| 55 | /* Events Quarks */ |
| 56 | |
| 57 | GQuark |
| 58 | LTT_EVENT_SYSCALL_ENTRY, |
| 59 | LTT_EVENT_SYSCALL_EXIT, |
| 60 | LTT_EVENT_TRAP_ENTRY, |
| 61 | LTT_EVENT_TRAP_EXIT, |
| 62 | LTT_EVENT_IRQ_ENTRY, |
| 63 | LTT_EVENT_IRQ_EXIT, |
| 64 | LTT_EVENT_SOFT_IRQ_ENTRY, |
| 65 | LTT_EVENT_SOFT_IRQ_EXIT, |
| 66 | LTT_EVENT_SCHEDCHANGE, |
| 67 | LTT_EVENT_FORK, |
| 68 | LTT_EVENT_KERNEL_THREAD, |
| 69 | LTT_EVENT_EXIT, |
| 70 | LTT_EVENT_FREE, |
| 71 | LTT_EVENT_EXEC, |
| 72 | LTT_EVENT_ENUM_PROCESS_STATE, |
| 73 | LTT_EVENT_FUNCTION_ENTRY, |
| 74 | LTT_EVENT_FUNCTION_EXIT, |
| 75 | LTT_EVENT_THREAD_BRAND; |
| 76 | |
| 77 | /* Fields Quarks */ |
| 78 | |
| 79 | GQuark |
| 80 | LTT_FIELD_SYSCALL_ID, |
| 81 | LTT_FIELD_TRAP_ID, |
| 82 | LTT_FIELD_IRQ_ID, |
| 83 | LTT_FIELD_SOFT_IRQ_ID, |
| 84 | LTT_FIELD_OUT, |
| 85 | LTT_FIELD_IN, |
| 86 | LTT_FIELD_OUT_STATE, |
| 87 | LTT_FIELD_PARENT_PID, |
| 88 | LTT_FIELD_CHILD_PID, |
| 89 | LTT_FIELD_PID, |
| 90 | LTT_FIELD_TGID, |
| 91 | LTT_FIELD_FILENAME, |
| 92 | LTT_FIELD_NAME, |
| 93 | LTT_FIELD_TYPE, |
| 94 | LTT_FIELD_MODE, |
| 95 | LTT_FIELD_SUBMODE, |
| 96 | LTT_FIELD_STATUS, |
| 97 | LTT_FIELD_THIS_FN, |
| 98 | LTT_FIELD_CALL_SITE; |
| 99 | |
| 100 | LttvExecutionMode |
| 101 | LTTV_STATE_MODE_UNKNOWN, |
| 102 | LTTV_STATE_USER_MODE, |
| 103 | LTTV_STATE_SYSCALL, |
| 104 | LTTV_STATE_TRAP, |
| 105 | LTTV_STATE_IRQ, |
| 106 | LTTV_STATE_SOFT_IRQ; |
| 107 | |
| 108 | LttvExecutionSubmode |
| 109 | LTTV_STATE_SUBMODE_UNKNOWN, |
| 110 | LTTV_STATE_SUBMODE_NONE; |
| 111 | |
| 112 | LttvProcessStatus |
| 113 | LTTV_STATE_UNNAMED, |
| 114 | LTTV_STATE_UNBRANDED, |
| 115 | LTTV_STATE_WAIT_FORK, |
| 116 | LTTV_STATE_WAIT_CPU, |
| 117 | LTTV_STATE_EXIT, |
| 118 | LTTV_STATE_ZOMBIE, |
| 119 | LTTV_STATE_WAIT, |
| 120 | LTTV_STATE_RUN, |
| 121 | LTTV_STATE_DEAD; |
| 122 | |
| 123 | LttvProcessType |
| 124 | LTTV_STATE_USER_THREAD, |
| 125 | LTTV_STATE_KERNEL_THREAD; |
| 126 | |
| 127 | static GQuark |
| 128 | LTTV_STATE_TRACEFILES, |
| 129 | LTTV_STATE_PROCESSES, |
| 130 | LTTV_STATE_PROCESS, |
| 131 | LTTV_STATE_RUNNING_PROCESS, |
| 132 | LTTV_STATE_EVENT, |
| 133 | LTTV_STATE_SAVED_STATES, |
| 134 | LTTV_STATE_SAVED_STATES_TIME, |
| 135 | LTTV_STATE_TIME, |
| 136 | LTTV_STATE_HOOKS, |
| 137 | LTTV_STATE_NAME_TABLES, |
| 138 | LTTV_STATE_TRACE_STATE_USE_COUNT; |
| 139 | |
| 140 | static void create_max_time(LttvTraceState *tcs); |
| 141 | |
| 142 | static void get_max_time(LttvTraceState *tcs); |
| 143 | |
| 144 | static void free_max_time(LttvTraceState *tcs); |
| 145 | |
| 146 | static void create_name_tables(LttvTraceState *tcs); |
| 147 | |
| 148 | static void get_name_tables(LttvTraceState *tcs); |
| 149 | |
| 150 | static void free_name_tables(LttvTraceState *tcs); |
| 151 | |
| 152 | static void free_saved_state(LttvTraceState *tcs); |
| 153 | |
| 154 | static void lttv_state_free_process_table(GHashTable *processes); |
| 155 | |
| 156 | static void lttv_trace_states_read_raw(LttvTraceState *tcs, FILE *fp, |
| 157 | GPtrArray *quarktable); |
| 158 | |
| 159 | void lttv_state_save(LttvTraceState *self, LttvAttribute *container) |
| 160 | { |
| 161 | LTTV_TRACE_STATE_GET_CLASS(self)->state_save(self, container); |
| 162 | } |
| 163 | |
| 164 | |
| 165 | void lttv_state_restore(LttvTraceState *self, LttvAttribute *container) |
| 166 | { |
| 167 | LTTV_TRACE_STATE_GET_CLASS(self)->state_restore(self, container); |
| 168 | } |
| 169 | |
| 170 | |
| 171 | void lttv_state_state_saved_free(LttvTraceState *self, |
| 172 | LttvAttribute *container) |
| 173 | { |
| 174 | LTTV_TRACE_STATE_GET_CLASS(self)->state_saved_free(self, container); |
| 175 | } |
| 176 | |
| 177 | |
| 178 | guint process_hash(gconstpointer key) |
| 179 | { |
| 180 | guint pid = ((const LttvProcessState *)key)->pid; |
| 181 | return (pid>>8 ^ pid>>4 ^ pid>>2 ^ pid) ; |
| 182 | } |
| 183 | |
| 184 | |
| 185 | /* If the hash table hash function is well distributed, |
| 186 | * the process_equal should compare different pid */ |
| 187 | gboolean process_equal(gconstpointer a, gconstpointer b) |
| 188 | { |
| 189 | const LttvProcessState *process_a, *process_b; |
| 190 | gboolean ret = TRUE; |
| 191 | |
| 192 | process_a = (const LttvProcessState *)a; |
| 193 | process_b = (const LttvProcessState *)b; |
| 194 | |
| 195 | if(likely(process_a->pid != process_b->pid)) ret = FALSE; |
| 196 | else if(likely(process_a->pid == 0 && |
| 197 | process_a->cpu != process_b->cpu)) ret = FALSE; |
| 198 | |
| 199 | return ret; |
| 200 | } |
| 201 | |
| 202 | static void delete_usertrace(gpointer key, gpointer value, gpointer user_data) |
| 203 | { |
| 204 | g_tree_destroy((GTree*)value); |
| 205 | } |
| 206 | |
| 207 | static void lttv_state_free_usertraces(GHashTable *usertraces) |
| 208 | { |
| 209 | g_hash_table_foreach(usertraces, delete_usertrace, NULL); |
| 210 | g_hash_table_destroy(usertraces); |
| 211 | } |
| 212 | |
| 213 | |
| 214 | |
| 215 | static void |
| 216 | restore_init_state(LttvTraceState *self) |
| 217 | { |
| 218 | guint i, nb_cpus; |
| 219 | |
| 220 | LttvTracefileState *tfcs; |
| 221 | |
| 222 | LttTime start_time, end_time; |
| 223 | |
| 224 | /* Free the process tables */ |
| 225 | if(self->processes != NULL) lttv_state_free_process_table(self->processes); |
| 226 | if(self->usertraces != NULL) lttv_state_free_usertraces(self->usertraces); |
| 227 | self->processes = g_hash_table_new(process_hash, process_equal); |
| 228 | self->usertraces = g_hash_table_new(g_direct_hash, g_direct_equal); |
| 229 | self->nb_event = 0; |
| 230 | |
| 231 | /* Seek time to beginning */ |
| 232 | // Mathieu : fix : don't seek traceset here : causes inconsistency in seek |
| 233 | // closest. It's the tracecontext job to seek the trace to the beginning |
| 234 | // anyway : the init state might be used at the middle of the trace as well... |
| 235 | //g_tree_destroy(self->parent.ts_context->pqueue); |
| 236 | //self->parent.ts_context->pqueue = g_tree_new(compare_tracefile); |
| 237 | |
| 238 | ltt_trace_time_span_get(self->parent.t, &start_time, &end_time); |
| 239 | |
| 240 | //lttv_process_trace_seek_time(&self->parent, ltt_time_zero); |
| 241 | |
| 242 | nb_cpus = ltt_trace_get_num_cpu(self->parent.t); |
| 243 | |
| 244 | /* Put the per cpu running_process to beginning state : process 0. */ |
| 245 | for(i=0; i< nb_cpus; i++) { |
| 246 | LttvExecutionState *es; |
| 247 | self->running_process[i] = lttv_state_create_process(self, NULL, i, 0, 0, |
| 248 | LTTV_STATE_UNNAMED, &start_time); |
| 249 | /* We are not sure is it's a kernel thread or normal thread, put the |
| 250 | * bottom stack state to unknown */ |
| 251 | self->running_process[i]->execution_stack = |
| 252 | g_array_set_size(self->running_process[i]->execution_stack, 1); |
| 253 | es = self->running_process[i]->state = |
| 254 | &g_array_index(self->running_process[i]->execution_stack, |
| 255 | LttvExecutionState, 0); |
| 256 | es->t = LTTV_STATE_MODE_UNKNOWN; |
| 257 | |
| 258 | self->running_process[i]->state->s = LTTV_STATE_RUN; |
| 259 | self->running_process[i]->cpu = i; |
| 260 | } |
| 261 | |
| 262 | #if 0 |
| 263 | nb_tracefile = self->parent.tracefiles->len; |
| 264 | |
| 265 | for(i = 0 ; i < nb_tracefile ; i++) { |
| 266 | tfcs = |
| 267 | LTTV_TRACEFILE_STATE(g_array_index(self->parent.tracefiles, |
| 268 | LttvTracefileContext*, i)); |
| 269 | ltt_trace_time_span_get(self->parent.t, &tfcs->parent.timestamp, NULL); |
| 270 | // tfcs->saved_position = 0; |
| 271 | tfcs->process = lttv_state_create_process(tfcs, NULL,0); |
| 272 | tfcs->process->state->s = LTTV_STATE_RUN; |
| 273 | tfcs->process->last_cpu = tfcs->cpu_name; |
| 274 | tfcs->process->last_cpu_index = ltt_tracefile_num(((LttvTracefileContext*)tfcs)->tf); |
| 275 | } |
| 276 | #endif //0 |
| 277 | } |
| 278 | |
| 279 | //static LttTime time_zero = {0,0}; |
| 280 | |
| 281 | static gint compare_usertraces(gconstpointer a, gconstpointer b, |
| 282 | gpointer user_data) |
| 283 | { |
| 284 | const LttTime *t1 = (const LttTime *)a; |
| 285 | const LttTime *t2 = (const LttTime *)b; |
| 286 | |
| 287 | return ltt_time_compare(*t1, *t2); |
| 288 | } |
| 289 | |
| 290 | static void free_usertrace_key(gpointer data) |
| 291 | { |
| 292 | g_free(data); |
| 293 | } |
| 294 | |
| 295 | #define MAX_STRING_LEN 4096 |
| 296 | |
| 297 | static void |
| 298 | state_load_saved_states(LttvTraceState *tcs) |
| 299 | { |
| 300 | FILE *fp; |
| 301 | GPtrArray *quarktable; |
| 302 | char *trace_path; |
| 303 | char path[PATH_MAX]; |
| 304 | guint count; |
| 305 | guint i; |
| 306 | tcs->has_precomputed_states = FALSE; |
| 307 | GQuark q; |
| 308 | gchar *string; |
| 309 | gint hdr; |
| 310 | gchar buf[MAX_STRING_LEN]; |
| 311 | guint len; |
| 312 | |
| 313 | trace_path = g_quark_to_string(ltt_trace_name(tcs->parent.t)); |
| 314 | strncpy(path, trace_path, PATH_MAX-1); |
| 315 | count = strnlen(trace_path, PATH_MAX-1); |
| 316 | // quarktable : open, test |
| 317 | strncat(path, "/precomputed/quarktable", PATH_MAX-count-1); |
| 318 | fp = fopen(path, "r"); |
| 319 | if(!fp) return; |
| 320 | quarktable = g_ptr_array_sized_new(4096); |
| 321 | |
| 322 | /* Index 0 is null */ |
| 323 | hdr = fgetc(fp); |
| 324 | if(hdr == EOF) return; |
| 325 | g_assert(hdr == HDR_QUARKS); |
| 326 | q = 1; |
| 327 | do { |
| 328 | hdr = fgetc(fp); |
| 329 | if(hdr == EOF) break; |
| 330 | g_assert(hdr == HDR_QUARK); |
| 331 | g_ptr_array_set_size(quarktable, q+1); |
| 332 | i=0; |
| 333 | while(1) { |
| 334 | fread(&buf[i], sizeof(gchar), 1, fp); |
| 335 | if(buf[i] == '\0' || feof(fp)) break; |
| 336 | i++; |
| 337 | } |
| 338 | len = strnlen(buf, MAX_STRING_LEN-1); |
| 339 | g_ptr_array_index (quarktable, q) = g_new(gchar, len+1); |
| 340 | strncpy(g_ptr_array_index (quarktable, q), buf, len+1); |
| 341 | q++; |
| 342 | } while(1); |
| 343 | |
| 344 | fclose(fp); |
| 345 | // saved_states : open, test |
| 346 | strncpy(path, trace_path, PATH_MAX-1); |
| 347 | count = strnlen(trace_path, PATH_MAX-1); |
| 348 | strncat(path, "/precomputed/states", PATH_MAX-count-1); |
| 349 | fp = fopen(path, "r"); |
| 350 | if(!fp) return; |
| 351 | |
| 352 | hdr = fgetc(fp); |
| 353 | if(hdr != HDR_TRACE) goto end; |
| 354 | |
| 355 | lttv_trace_states_read_raw(tcs, fp, quarktable); |
| 356 | |
| 357 | tcs->has_precomputed_states = TRUE; |
| 358 | |
| 359 | end: |
| 360 | fclose(fp); |
| 361 | |
| 362 | /* Free the quarktable */ |
| 363 | for(i=0; i<quarktable->len; i++) { |
| 364 | string = g_ptr_array_index (quarktable, i); |
| 365 | g_free(string); |
| 366 | } |
| 367 | g_ptr_array_free(quarktable, TRUE); |
| 368 | return; |
| 369 | } |
| 370 | |
| 371 | static void |
| 372 | init(LttvTracesetState *self, LttvTraceset *ts) |
| 373 | { |
| 374 | guint i, j, nb_trace, nb_tracefile; |
| 375 | |
| 376 | LttvTraceContext *tc; |
| 377 | |
| 378 | LttvTraceState *tcs; |
| 379 | |
| 380 | LttvTracefileState *tfcs; |
| 381 | |
| 382 | LttvAttributeValue v; |
| 383 | |
| 384 | LTTV_TRACESET_CONTEXT_CLASS(g_type_class_peek(LTTV_TRACESET_CONTEXT_TYPE))-> |
| 385 | init((LttvTracesetContext *)self, ts); |
| 386 | |
| 387 | nb_trace = lttv_traceset_number(ts); |
| 388 | for(i = 0 ; i < nb_trace ; i++) { |
| 389 | tc = self->parent.traces[i]; |
| 390 | tcs = LTTV_TRACE_STATE(tc); |
| 391 | tcs->save_interval = LTTV_STATE_SAVE_INTERVAL; |
| 392 | lttv_attribute_find(tcs->parent.t_a, LTTV_STATE_TRACE_STATE_USE_COUNT, |
| 393 | LTTV_UINT, &v); |
| 394 | (*v.v_uint)++; |
| 395 | |
| 396 | if(*(v.v_uint) == 1) { |
| 397 | create_name_tables(tcs); |
| 398 | create_max_time(tcs); |
| 399 | } |
| 400 | get_name_tables(tcs); |
| 401 | get_max_time(tcs); |
| 402 | |
| 403 | nb_tracefile = tc->tracefiles->len; |
| 404 | tcs->processes = NULL; |
| 405 | tcs->usertraces = NULL; |
| 406 | tcs->running_process = g_new(LttvProcessState*, |
| 407 | ltt_trace_get_num_cpu(tc->t)); |
| 408 | restore_init_state(tcs); |
| 409 | for(j = 0 ; j < nb_tracefile ; j++) { |
| 410 | tfcs = |
| 411 | LTTV_TRACEFILE_STATE(g_array_index(tc->tracefiles, |
| 412 | LttvTracefileContext*, j)); |
| 413 | tfcs->tracefile_name = ltt_tracefile_name(tfcs->parent.tf); |
| 414 | tfcs->cpu = ltt_tracefile_cpu(tfcs->parent.tf); |
| 415 | if(ltt_tracefile_tid(tfcs->parent.tf) != 0) { |
| 416 | /* It's a Usertrace */ |
| 417 | guint tid = ltt_tracefile_tid(tfcs->parent.tf); |
| 418 | GTree *usertrace_tree = (GTree*)g_hash_table_lookup(tcs->usertraces, |
| 419 | (gconstpointer)tid); |
| 420 | if(!usertrace_tree) { |
| 421 | usertrace_tree = g_tree_new_full(compare_usertraces, |
| 422 | NULL, free_usertrace_key, NULL); |
| 423 | g_hash_table_insert(tcs->usertraces, |
| 424 | (gpointer)tid, usertrace_tree); |
| 425 | } |
| 426 | LttTime *timestamp = g_new(LttTime, 1); |
| 427 | *timestamp = ltt_interpolate_time_from_tsc(tfcs->parent.tf, |
| 428 | ltt_tracefile_creation(tfcs->parent.tf)); |
| 429 | g_tree_insert(usertrace_tree, timestamp, tfcs); |
| 430 | } |
| 431 | } |
| 432 | |
| 433 | /* See if the trace has saved states */ |
| 434 | state_load_saved_states(tcs); |
| 435 | } |
| 436 | } |
| 437 | |
| 438 | static void |
| 439 | fini(LttvTracesetState *self) |
| 440 | { |
| 441 | guint i, nb_trace; |
| 442 | |
| 443 | LttvTraceState *tcs; |
| 444 | |
| 445 | LttvTracefileState *tfcs; |
| 446 | |
| 447 | LttvAttributeValue v; |
| 448 | |
| 449 | nb_trace = lttv_traceset_number(LTTV_TRACESET_CONTEXT(self)->ts); |
| 450 | for(i = 0 ; i < nb_trace ; i++) { |
| 451 | tcs = (LttvTraceState *)(LTTV_TRACESET_CONTEXT(self)->traces[i]); |
| 452 | lttv_attribute_find(tcs->parent.t_a, LTTV_STATE_TRACE_STATE_USE_COUNT, |
| 453 | LTTV_UINT, &v); |
| 454 | |
| 455 | g_assert(*(v.v_uint) != 0); |
| 456 | (*v.v_uint)--; |
| 457 | |
| 458 | if(*(v.v_uint) == 0) { |
| 459 | free_name_tables(tcs); |
| 460 | free_max_time(tcs); |
| 461 | free_saved_state(tcs); |
| 462 | } |
| 463 | g_free(tcs->running_process); |
| 464 | tcs->running_process = NULL; |
| 465 | lttv_state_free_process_table(tcs->processes); |
| 466 | lttv_state_free_usertraces(tcs->usertraces); |
| 467 | tcs->processes = NULL; |
| 468 | tcs->usertraces = NULL; |
| 469 | } |
| 470 | LTTV_TRACESET_CONTEXT_CLASS(g_type_class_peek(LTTV_TRACESET_CONTEXT_TYPE))-> |
| 471 | fini((LttvTracesetContext *)self); |
| 472 | } |
| 473 | |
| 474 | |
| 475 | static LttvTracesetContext * |
| 476 | new_traceset_context(LttvTracesetContext *self) |
| 477 | { |
| 478 | return LTTV_TRACESET_CONTEXT(g_object_new(LTTV_TRACESET_STATE_TYPE, NULL)); |
| 479 | } |
| 480 | |
| 481 | |
| 482 | static LttvTraceContext * |
| 483 | new_trace_context(LttvTracesetContext *self) |
| 484 | { |
| 485 | return LTTV_TRACE_CONTEXT(g_object_new(LTTV_TRACE_STATE_TYPE, NULL)); |
| 486 | } |
| 487 | |
| 488 | |
| 489 | static LttvTracefileContext * |
| 490 | new_tracefile_context(LttvTracesetContext *self) |
| 491 | { |
| 492 | return LTTV_TRACEFILE_CONTEXT(g_object_new(LTTV_TRACEFILE_STATE_TYPE, NULL)); |
| 493 | } |
| 494 | |
| 495 | |
| 496 | /* Write the process state of the trace */ |
| 497 | |
| 498 | static void write_process_state(gpointer key, gpointer value, |
| 499 | gpointer user_data) |
| 500 | { |
| 501 | LttvProcessState *process; |
| 502 | |
| 503 | LttvExecutionState *es; |
| 504 | |
| 505 | FILE *fp = (FILE *)user_data; |
| 506 | |
| 507 | guint i; |
| 508 | guint64 address; |
| 509 | |
| 510 | process = (LttvProcessState *)value; |
| 511 | fprintf(fp, |
| 512 | " <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\">\n", |
| 513 | process, process->pid, process->tgid, process->ppid, |
| 514 | g_quark_to_string(process->type), |
| 515 | process->creation_time.tv_sec, |
| 516 | process->creation_time.tv_nsec, |
| 517 | process->insertion_time.tv_sec, |
| 518 | process->insertion_time.tv_nsec, |
| 519 | g_quark_to_string(process->name), |
| 520 | g_quark_to_string(process->brand), |
| 521 | process->cpu); |
| 522 | |
| 523 | for(i = 0 ; i < process->execution_stack->len; i++) { |
| 524 | es = &g_array_index(process->execution_stack, LttvExecutionState, i); |
| 525 | fprintf(fp, " <ES MODE=\"%s\" SUBMODE=\"%s\" ENTRY_S=%lu ENTRY_NS=%lu", |
| 526 | g_quark_to_string(es->t), g_quark_to_string(es->n), |
| 527 | es->entry.tv_sec, es->entry.tv_nsec); |
| 528 | fprintf(fp, " CHANGE_S=%lu CHANGE_NS=%lu STATUS=\"%s\"/>\n", |
| 529 | es->change.tv_sec, es->change.tv_nsec, g_quark_to_string(es->s)); |
| 530 | } |
| 531 | |
| 532 | for(i = 0 ; i < process->user_stack->len; i++) { |
| 533 | address = &g_array_index(process->user_stack, guint64, i); |
| 534 | fprintf(fp, " <USER_STACK ADDRESS=\"%llu\"/>\n", |
| 535 | address); |
| 536 | } |
| 537 | |
| 538 | if(process->usertrace) { |
| 539 | fprintf(fp, " <USERTRACE NAME=\"%s\" CPU=%u\n/>", |
| 540 | g_quark_to_string(process->usertrace->tracefile_name), |
| 541 | process->usertrace->cpu); |
| 542 | } |
| 543 | |
| 544 | |
| 545 | fprintf(fp, " </PROCESS>\n"); |
| 546 | } |
| 547 | |
| 548 | |
| 549 | void lttv_state_write(LttvTraceState *self, LttTime t, FILE *fp) |
| 550 | { |
| 551 | guint i, nb_tracefile, nb_block, offset; |
| 552 | guint64 tsc; |
| 553 | |
| 554 | LttvTracefileState *tfcs; |
| 555 | |
| 556 | LttTracefile *tf; |
| 557 | |
| 558 | LttEventPosition *ep; |
| 559 | |
| 560 | guint nb_cpus; |
| 561 | |
| 562 | ep = ltt_event_position_new(); |
| 563 | |
| 564 | fprintf(fp,"<PROCESS_STATE TIME_S=%lu TIME_NS=%lu>\n", t.tv_sec, t.tv_nsec); |
| 565 | |
| 566 | g_hash_table_foreach(self->processes, write_process_state, fp); |
| 567 | |
| 568 | nb_cpus = ltt_trace_get_num_cpu(self->parent.t); |
| 569 | for(i=0;i<nb_cpus;i++) { |
| 570 | fprintf(fp," <CPU NUM=%u RUNNING_PROCESS=%u>\n", |
| 571 | i, self->running_process[i]->pid); |
| 572 | } |
| 573 | |
| 574 | nb_tracefile = self->parent.tracefiles->len; |
| 575 | |
| 576 | for(i = 0 ; i < nb_tracefile ; i++) { |
| 577 | tfcs = |
| 578 | LTTV_TRACEFILE_STATE(g_array_index(self->parent.tracefiles, |
| 579 | LttvTracefileContext*, i)); |
| 580 | fprintf(fp, " <TRACEFILE TIMESTAMP_S=%lu TIMESTAMP_NS=%lu", |
| 581 | tfcs->parent.timestamp.tv_sec, |
| 582 | tfcs->parent.timestamp.tv_nsec); |
| 583 | LttEvent *e = ltt_tracefile_get_event(tfcs->parent.tf); |
| 584 | if(e == NULL) fprintf(fp,"/>\n"); |
| 585 | else { |
| 586 | ltt_event_position(e, ep); |
| 587 | ltt_event_position_get(ep, &tf, &nb_block, &offset, &tsc); |
| 588 | fprintf(fp, " BLOCK=%u OFFSET=%u TSC=%llu/>\n", nb_block, offset, |
| 589 | tsc); |
| 590 | } |
| 591 | } |
| 592 | g_free(ep); |
| 593 | fprintf(fp,"</PROCESS_STATE>\n"); |
| 594 | } |
| 595 | |
| 596 | |
| 597 | static void write_process_state_raw(gpointer key, gpointer value, |
| 598 | gpointer user_data) |
| 599 | { |
| 600 | LttvProcessState *process; |
| 601 | |
| 602 | LttvExecutionState *es; |
| 603 | |
| 604 | FILE *fp = (FILE *)user_data; |
| 605 | |
| 606 | guint i; |
| 607 | guint64 address; |
| 608 | |
| 609 | process = (LttvProcessState *)value; |
| 610 | fputc(HDR_PROCESS, fp); |
| 611 | //fwrite(&header, sizeof(header), 1, fp); |
| 612 | //fprintf(fp, "%s", g_quark_to_string(process->type)); |
| 613 | //fputc('\0', fp); |
| 614 | fwrite(&process->type, sizeof(process->type), 1, fp); |
| 615 | //fprintf(fp, "%s", g_quark_to_string(process->name)); |
| 616 | //fputc('\0', fp); |
| 617 | fwrite(&process->name, sizeof(process->name), 1, fp); |
| 618 | //fprintf(fp, "%s", g_quark_to_string(process->brand)); |
| 619 | //fputc('\0', fp); |
| 620 | fwrite(&process->brand, sizeof(process->brand), 1, fp); |
| 621 | fwrite(&process->pid, sizeof(process->pid), 1, fp); |
| 622 | fwrite(&process->tgid, sizeof(process->tgid), 1, fp); |
| 623 | fwrite(&process->ppid, sizeof(process->ppid), 1, fp); |
| 624 | fwrite(&process->cpu, sizeof(process->cpu), 1, fp); |
| 625 | fwrite(&process->creation_time, sizeof(process->creation_time), 1, fp); |
| 626 | fwrite(&process->insertion_time, sizeof(process->insertion_time), 1, fp); |
| 627 | |
| 628 | #if 0 |
| 629 | fprintf(fp, |
| 630 | " <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", |
| 631 | process, process->pid, process->tgid, process->ppid, |
| 632 | g_quark_to_string(process->type), |
| 633 | process->creation_time.tv_sec, |
| 634 | process->creation_time.tv_nsec, |
| 635 | process->insertion_time.tv_sec, |
| 636 | process->insertion_time.tv_nsec, |
| 637 | g_quark_to_string(process->name), |
| 638 | g_quark_to_string(process->brand), |
| 639 | process->cpu); |
| 640 | #endif //0 |
| 641 | |
| 642 | for(i = 0 ; i < process->execution_stack->len; i++) { |
| 643 | es = &g_array_index(process->execution_stack, LttvExecutionState, i); |
| 644 | |
| 645 | fputc(HDR_ES, fp); |
| 646 | //fprintf(fp, "%s", g_quark_to_string(es->t)); |
| 647 | //fputc('\0', fp); |
| 648 | fwrite(&es->t, sizeof(es->t), 1, fp); |
| 649 | //fprintf(fp, "%s", g_quark_to_string(es->n)); |
| 650 | //fputc('\0', fp); |
| 651 | fwrite(&es->n, sizeof(es->n), 1, fp); |
| 652 | //fprintf(fp, "%s", g_quark_to_string(es->s)); |
| 653 | //fputc('\0', fp); |
| 654 | fwrite(&es->s, sizeof(es->s), 1, fp); |
| 655 | fwrite(&es->entry, sizeof(es->entry), 1, fp); |
| 656 | fwrite(&es->change, sizeof(es->change), 1, fp); |
| 657 | fwrite(&es->cum_cpu_time, sizeof(es->cum_cpu_time), 1, fp); |
| 658 | #if 0 |
| 659 | fprintf(fp, " <ES MODE=\"%s\" SUBMODE=\"%s\" ENTRY_S=%lu ENTRY_NS=%lu", |
| 660 | g_quark_to_string(es->t), g_quark_to_string(es->n), |
| 661 | es->entry.tv_sec, es->entry.tv_nsec); |
| 662 | fprintf(fp, " CHANGE_S=%lu CHANGE_NS=%lu STATUS=\"%s\"/>\n", |
| 663 | es->change.tv_sec, es->change.tv_nsec, g_quark_to_string(es->s)); |
| 664 | #endif //0 |
| 665 | } |
| 666 | |
| 667 | for(i = 0 ; i < process->user_stack->len; i++) { |
| 668 | address = &g_array_index(process->user_stack, guint64, i); |
| 669 | fputc(HDR_USER_STACK, fp); |
| 670 | fwrite(&address, sizeof(address), 1, fp); |
| 671 | #if 0 |
| 672 | fprintf(fp, " <USER_STACK ADDRESS=\"%llu\"/>\n", |
| 673 | address); |
| 674 | #endif //0 |
| 675 | } |
| 676 | |
| 677 | if(process->usertrace) { |
| 678 | fputc(HDR_USERTRACE, fp); |
| 679 | //fprintf(fp, "%s", g_quark_to_string(process->usertrace->tracefile_name)); |
| 680 | //fputc('\0', fp); |
| 681 | fwrite(&process->usertrace->tracefile_name, |
| 682 | sizeof(process->usertrace->tracefile_name), 1, fp); |
| 683 | fwrite(&process->usertrace->cpu, sizeof(process->usertrace->cpu), 1, fp); |
| 684 | #if 0 |
| 685 | fprintf(fp, " <USERTRACE NAME=\"%s\" CPU=%u\n/>", |
| 686 | g_quark_to_string(process->usertrace->tracefile_name), |
| 687 | process->usertrace->cpu); |
| 688 | #endif //0 |
| 689 | } |
| 690 | |
| 691 | } |
| 692 | |
| 693 | |
| 694 | void lttv_state_write_raw(LttvTraceState *self, LttTime t, FILE *fp) |
| 695 | { |
| 696 | guint i, nb_tracefile, nb_block, offset; |
| 697 | guint64 tsc; |
| 698 | |
| 699 | LttvTracefileState *tfcs; |
| 700 | |
| 701 | LttTracefile *tf; |
| 702 | |
| 703 | LttEventPosition *ep; |
| 704 | |
| 705 | guint nb_cpus; |
| 706 | |
| 707 | ep = ltt_event_position_new(); |
| 708 | |
| 709 | //fprintf(fp,"<PROCESS_STATE TIME_S=%lu TIME_NS=%lu>\n", t.tv_sec, t.tv_nsec); |
| 710 | fputc(HDR_PROCESS_STATE, fp); |
| 711 | fwrite(&t, sizeof(t), 1, fp); |
| 712 | |
| 713 | g_hash_table_foreach(self->processes, write_process_state_raw, fp); |
| 714 | |
| 715 | nb_cpus = ltt_trace_get_num_cpu(self->parent.t); |
| 716 | for(i=0;i<nb_cpus;i++) { |
| 717 | fputc(HDR_CPU, fp); |
| 718 | fwrite(&i, sizeof(i), 1, fp); /* cpu number */ |
| 719 | fwrite(&self->running_process[i]->pid, |
| 720 | sizeof(self->running_process[i]->pid), 1, fp); |
| 721 | //fprintf(fp," <CPU NUM=%u RUNNING_PROCESS=%u>\n", |
| 722 | // i, self->running_process[i]->pid); |
| 723 | } |
| 724 | |
| 725 | nb_tracefile = self->parent.tracefiles->len; |
| 726 | |
| 727 | for(i = 0 ; i < nb_tracefile ; i++) { |
| 728 | tfcs = |
| 729 | LTTV_TRACEFILE_STATE(g_array_index(self->parent.tracefiles, |
| 730 | LttvTracefileContext*, i)); |
| 731 | // fprintf(fp, " <TRACEFILE TIMESTAMP_S=%lu TIMESTAMP_NS=%lu", |
| 732 | // tfcs->parent.timestamp.tv_sec, |
| 733 | // tfcs->parent.timestamp.tv_nsec); |
| 734 | fputc(HDR_TRACEFILE, fp); |
| 735 | fwrite(&tfcs->parent.timestamp, sizeof(tfcs->parent.timestamp), 1, fp); |
| 736 | /* Note : if timestamp if LTT_TIME_INFINITE, there will be no |
| 737 | * position following : end of trace */ |
| 738 | LttEvent *e = ltt_tracefile_get_event(tfcs->parent.tf); |
| 739 | if(e != NULL) { |
| 740 | ltt_event_position(e, ep); |
| 741 | ltt_event_position_get(ep, &tf, &nb_block, &offset, &tsc); |
| 742 | //fprintf(fp, " BLOCK=%u OFFSET=%u TSC=%llu/>\n", nb_block, offset, |
| 743 | // tsc); |
| 744 | fwrite(&nb_block, sizeof(nb_block), 1, fp); |
| 745 | fwrite(&offset, sizeof(offset), 1, fp); |
| 746 | fwrite(&tsc, sizeof(tsc), 1, fp); |
| 747 | } |
| 748 | } |
| 749 | g_free(ep); |
| 750 | } |
| 751 | |
| 752 | |
| 753 | /* Read process state from a file */ |
| 754 | |
| 755 | /* Called because a HDR_PROCESS was found */ |
| 756 | static void read_process_state_raw(LttvTraceState *self, FILE *fp, |
| 757 | GPtrArray *quarktable) |
| 758 | { |
| 759 | LttvExecutionState *es; |
| 760 | LttvProcessState *process, *parent_process; |
| 761 | LttvProcessState tmp; |
| 762 | GQuark tmpq; |
| 763 | |
| 764 | guint i; |
| 765 | guint64 *address; |
| 766 | guint cpu; |
| 767 | |
| 768 | /* TODO : check return value */ |
| 769 | fread(&tmp.type, sizeof(tmp.type), 1, fp); |
| 770 | fread(&tmp.name, sizeof(tmp.name), 1, fp); |
| 771 | fread(&tmp.brand, sizeof(tmp.brand), 1, fp); |
| 772 | fread(&tmp.pid, sizeof(tmp.pid), 1, fp); |
| 773 | fread(&tmp.tgid, sizeof(tmp.tgid), 1, fp); |
| 774 | fread(&tmp.ppid, sizeof(tmp.ppid), 1, fp); |
| 775 | fread(&tmp.cpu, sizeof(tmp.cpu), 1, fp); |
| 776 | fread(&tmp.creation_time, sizeof(tmp.creation_time), 1, fp); |
| 777 | fread(&tmp.insertion_time, sizeof(tmp.insertion_time), 1, fp); |
| 778 | |
| 779 | if(tmp.pid == 0) { |
| 780 | process = lttv_state_find_process(self, tmp.cpu, tmp.pid); |
| 781 | } else { |
| 782 | /* We must link to the parent */ |
| 783 | parent_process = lttv_state_find_process_or_create(self, ANY_CPU, tmp.ppid, |
| 784 | <t_time_zero); |
| 785 | process = lttv_state_find_process_or_create(self, tmp.cpu, tmp.pid, |
| 786 | &tmp.creation_time); |
| 787 | } |
| 788 | process->insertion_time = tmp.insertion_time; |
| 789 | process->creation_time = tmp.creation_time; |
| 790 | process->type = g_quark_from_string( |
| 791 | (gchar*)g_ptr_array_index(quarktable, tmp.type)); |
| 792 | process->tgid = tmp.tgid; |
| 793 | process->ppid = tmp.ppid; |
| 794 | process->brand = g_quark_from_string( |
| 795 | (gchar*)g_ptr_array_index(quarktable, tmp.brand)); |
| 796 | process->name = |
| 797 | g_quark_from_string((gchar*)g_ptr_array_index(quarktable, tmp.name)); |
| 798 | |
| 799 | do { |
| 800 | if(feof(fp) || ferror(fp)) goto end_loop; |
| 801 | |
| 802 | gint hdr = fgetc(fp); |
| 803 | if(hdr == EOF) goto end_loop; |
| 804 | |
| 805 | switch(hdr) { |
| 806 | case HDR_ES: |
| 807 | process->execution_stack = |
| 808 | g_array_set_size(process->execution_stack, |
| 809 | process->execution_stack->len + 1); |
| 810 | es = &g_array_index(process->execution_stack, LttvExecutionState, |
| 811 | process->execution_stack->len-1); |
| 812 | |
| 813 | fread(&es->t, sizeof(es->t), 1, fp); |
| 814 | es->t = g_quark_from_string( |
| 815 | (gchar*)g_ptr_array_index(quarktable, es->t)); |
| 816 | fread(&es->n, sizeof(es->n), 1, fp); |
| 817 | es->n = g_quark_from_string( |
| 818 | (gchar*)g_ptr_array_index(quarktable, es->n)); |
| 819 | fread(&es->s, sizeof(es->s), 1, fp); |
| 820 | es->s = g_quark_from_string( |
| 821 | (gchar*)g_ptr_array_index(quarktable, es->s)); |
| 822 | fread(&es->entry, sizeof(es->entry), 1, fp); |
| 823 | fread(&es->change, sizeof(es->change), 1, fp); |
| 824 | fread(&es->cum_cpu_time, sizeof(es->cum_cpu_time), 1, fp); |
| 825 | break; |
| 826 | case HDR_USER_STACK: |
| 827 | process->user_stack = g_array_set_size(process->user_stack, |
| 828 | process->user_stack->len + 1); |
| 829 | address = &g_array_index(process->user_stack, guint64, |
| 830 | process->user_stack->len-1); |
| 831 | fread(address, sizeof(address), 1, fp); |
| 832 | process->current_function = *address; |
| 833 | break; |
| 834 | case HDR_USERTRACE: |
| 835 | fread(&tmpq, sizeof(tmpq), 1, fp); |
| 836 | fread(&process->usertrace->cpu, sizeof(process->usertrace->cpu), 1, fp); |
| 837 | break; |
| 838 | default: |
| 839 | ungetc(hdr, fp); |
| 840 | goto end_loop; |
| 841 | }; |
| 842 | } while(1); |
| 843 | end_loop: |
| 844 | return; |
| 845 | } |
| 846 | |
| 847 | |
| 848 | /* Called because a HDR_PROCESS_STATE was found */ |
| 849 | /* Append a saved state to the trace states */ |
| 850 | void lttv_state_read_raw(LttvTraceState *self, FILE *fp, GPtrArray *quarktable) |
| 851 | { |
| 852 | guint i, nb_tracefile, nb_block, offset; |
| 853 | guint64 tsc; |
| 854 | LttvTracefileState *tfcs; |
| 855 | |
| 856 | LttEventPosition *ep; |
| 857 | |
| 858 | guint nb_cpus; |
| 859 | |
| 860 | int hdr; |
| 861 | |
| 862 | LttTime t; |
| 863 | |
| 864 | LttvAttribute *saved_states_tree, *saved_state_tree; |
| 865 | |
| 866 | LttvAttributeValue value; |
| 867 | ep = ltt_event_position_new(); |
| 868 | |
| 869 | restore_init_state(self); |
| 870 | |
| 871 | fread(&t, sizeof(t), 1, fp); |
| 872 | |
| 873 | do { |
| 874 | if(feof(fp) || ferror(fp)) goto end_loop; |
| 875 | hdr = fgetc(fp); |
| 876 | if(hdr == EOF) goto end_loop; |
| 877 | |
| 878 | switch(hdr) { |
| 879 | case HDR_PROCESS: |
| 880 | /* Call read_process_state_raw */ |
| 881 | read_process_state_raw(self, fp, quarktable); |
| 882 | break; |
| 883 | case HDR_TRACEFILE: |
| 884 | case HDR_TRACESET: |
| 885 | case HDR_TRACE: |
| 886 | case HDR_QUARKS: |
| 887 | case HDR_QUARK: |
| 888 | case HDR_ES: |
| 889 | case HDR_USER_STACK: |
| 890 | case HDR_USERTRACE: |
| 891 | case HDR_PROCESS_STATE: |
| 892 | case HDR_CPU: |
| 893 | ungetc(hdr, fp); |
| 894 | goto end_loop; |
| 895 | break; |
| 896 | default: |
| 897 | g_error("Error while parsing saved state file : unknown data header %d", |
| 898 | hdr); |
| 899 | }; |
| 900 | } while(1); |
| 901 | end_loop: |
| 902 | |
| 903 | nb_cpus = ltt_trace_get_num_cpu(self->parent.t); |
| 904 | for(i=0;i<nb_cpus;i++) { |
| 905 | int cpu_num; |
| 906 | hdr = fgetc(fp); |
| 907 | g_assert(hdr == HDR_CPU); |
| 908 | fread(&cpu_num, sizeof(cpu_num), 1, fp); /* cpu number */ |
| 909 | g_assert(i == cpu_num); |
| 910 | fread(&self->running_process[i]->pid, |
| 911 | sizeof(self->running_process[i]->pid), 1, fp); |
| 912 | } |
| 913 | |
| 914 | nb_tracefile = self->parent.tracefiles->len; |
| 915 | |
| 916 | for(i = 0 ; i < nb_tracefile ; i++) { |
| 917 | tfcs = |
| 918 | LTTV_TRACEFILE_STATE(g_array_index(self->parent.tracefiles, |
| 919 | LttvTracefileContext*, i)); |
| 920 | // fprintf(fp, " <TRACEFILE TIMESTAMP_S=%lu TIMESTAMP_NS=%lu", |
| 921 | // tfcs->parent.timestamp.tv_sec, |
| 922 | // tfcs->parent.timestamp.tv_nsec); |
| 923 | hdr = fgetc(fp); |
| 924 | g_assert(hdr == HDR_TRACEFILE); |
| 925 | fread(&tfcs->parent.timestamp, sizeof(tfcs->parent.timestamp), 1, fp); |
| 926 | /* Note : if timestamp if LTT_TIME_INFINITE, there will be no |
| 927 | * position following : end of trace */ |
| 928 | if(ltt_time_compare(tfcs->parent.timestamp, ltt_time_infinite) != 0) { |
| 929 | fread(&nb_block, sizeof(nb_block), 1, fp); |
| 930 | fread(&offset, sizeof(offset), 1, fp); |
| 931 | fread(&tsc, sizeof(tsc), 1, fp); |
| 932 | ltt_event_position_set(ep, tfcs->parent.tf, nb_block, offset, tsc); |
| 933 | gint ret = ltt_tracefile_seek_position(tfcs->parent.tf, ep); |
| 934 | g_assert(ret == 0); |
| 935 | } |
| 936 | } |
| 937 | g_free(ep); |
| 938 | |
| 939 | saved_states_tree = lttv_attribute_find_subdir(self->parent.t_a, |
| 940 | LTTV_STATE_SAVED_STATES); |
| 941 | saved_state_tree = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL); |
| 942 | value = lttv_attribute_add(saved_states_tree, |
| 943 | lttv_attribute_get_number(saved_states_tree), LTTV_GOBJECT); |
| 944 | *(value.v_gobject) = (GObject *)saved_state_tree; |
| 945 | value = lttv_attribute_add(saved_state_tree, LTTV_STATE_TIME, LTTV_TIME); |
| 946 | *(value.v_time) = t; |
| 947 | lttv_state_save(self, saved_state_tree); |
| 948 | g_debug("Saving state at time %lu.%lu", t.tv_sec, |
| 949 | t.tv_nsec); |
| 950 | |
| 951 | *(self->max_time_state_recomputed_in_seek) = t; |
| 952 | } |
| 953 | |
| 954 | /* Called when a HDR_TRACE is found */ |
| 955 | void lttv_trace_states_read_raw(LttvTraceState *tcs, FILE *fp, |
| 956 | GPtrArray *quarktable) |
| 957 | { |
| 958 | int hdr; |
| 959 | |
| 960 | do { |
| 961 | if(feof(fp) || ferror(fp)) goto end_loop; |
| 962 | hdr = fgetc(fp); |
| 963 | if(hdr == EOF) goto end_loop; |
| 964 | |
| 965 | switch(hdr) { |
| 966 | case HDR_PROCESS_STATE: |
| 967 | /* Call read_process_state_raw */ |
| 968 | lttv_state_read_raw(tcs, fp, quarktable); |
| 969 | break; |
| 970 | case HDR_TRACEFILE: |
| 971 | case HDR_TRACESET: |
| 972 | case HDR_TRACE: |
| 973 | case HDR_QUARKS: |
| 974 | case HDR_QUARK: |
| 975 | case HDR_ES: |
| 976 | case HDR_USER_STACK: |
| 977 | case HDR_USERTRACE: |
| 978 | case HDR_PROCESS: |
| 979 | case HDR_CPU: |
| 980 | g_error("Error while parsing saved state file :" |
| 981 | " unexpected data header %d", |
| 982 | hdr); |
| 983 | break; |
| 984 | default: |
| 985 | g_error("Error while parsing saved state file : unknown data header %d", |
| 986 | hdr); |
| 987 | }; |
| 988 | } while(1); |
| 989 | end_loop: |
| 990 | |
| 991 | *(tcs->max_time_state_recomputed_in_seek) = tcs->parent.time_span.end_time; |
| 992 | } |
| 993 | |
| 994 | |
| 995 | |
| 996 | /* Copy each process from an existing hash table to a new one */ |
| 997 | |
| 998 | static void copy_process_state(gpointer key, gpointer value,gpointer user_data) |
| 999 | { |
| 1000 | LttvProcessState *process, *new_process; |
| 1001 | |
| 1002 | GHashTable *new_processes = (GHashTable *)user_data; |
| 1003 | |
| 1004 | guint i; |
| 1005 | |
| 1006 | process = (LttvProcessState *)value; |
| 1007 | new_process = g_new(LttvProcessState, 1); |
| 1008 | *new_process = *process; |
| 1009 | new_process->execution_stack = g_array_sized_new(FALSE, FALSE, |
| 1010 | sizeof(LttvExecutionState), PREALLOCATED_EXECUTION_STACK); |
| 1011 | new_process->execution_stack = |
| 1012 | g_array_set_size(new_process->execution_stack, |
| 1013 | process->execution_stack->len); |
| 1014 | for(i = 0 ; i < process->execution_stack->len; i++) { |
| 1015 | g_array_index(new_process->execution_stack, LttvExecutionState, i) = |
| 1016 | g_array_index(process->execution_stack, LttvExecutionState, i); |
| 1017 | } |
| 1018 | new_process->state = &g_array_index(new_process->execution_stack, |
| 1019 | LttvExecutionState, new_process->execution_stack->len - 1); |
| 1020 | new_process->user_stack = g_array_sized_new(FALSE, FALSE, |
| 1021 | sizeof(guint64), 0); |
| 1022 | new_process->user_stack = |
| 1023 | g_array_set_size(new_process->user_stack, |
| 1024 | process->user_stack->len); |
| 1025 | for(i = 0 ; i < process->user_stack->len; i++) { |
| 1026 | g_array_index(new_process->user_stack, guint64, i) = |
| 1027 | g_array_index(process->user_stack, guint64, i); |
| 1028 | } |
| 1029 | new_process->current_function = process->current_function; |
| 1030 | g_hash_table_insert(new_processes, new_process, new_process); |
| 1031 | } |
| 1032 | |
| 1033 | |
| 1034 | static GHashTable *lttv_state_copy_process_table(GHashTable *processes) |
| 1035 | { |
| 1036 | GHashTable *new_processes = g_hash_table_new(process_hash, process_equal); |
| 1037 | |
| 1038 | g_hash_table_foreach(processes, copy_process_state, new_processes); |
| 1039 | return new_processes; |
| 1040 | } |
| 1041 | |
| 1042 | |
| 1043 | /* The saved state for each trace contains a member "processes", which |
| 1044 | stores a copy of the process table, and a member "tracefiles" with |
| 1045 | one entry per tracefile. Each tracefile has a "process" member pointing |
| 1046 | to the current process and a "position" member storing the tracefile |
| 1047 | position (needed to seek to the current "next" event. */ |
| 1048 | |
| 1049 | static void state_save(LttvTraceState *self, LttvAttribute *container) |
| 1050 | { |
| 1051 | guint i, nb_tracefile, nb_cpus; |
| 1052 | |
| 1053 | LttvTracefileState *tfcs; |
| 1054 | |
| 1055 | LttvAttribute *tracefiles_tree, *tracefile_tree; |
| 1056 | |
| 1057 | guint *running_process; |
| 1058 | |
| 1059 | LttvAttributeType type; |
| 1060 | |
| 1061 | LttvAttributeValue value; |
| 1062 | |
| 1063 | LttvAttributeName name; |
| 1064 | |
| 1065 | LttEventPosition *ep; |
| 1066 | |
| 1067 | tracefiles_tree = lttv_attribute_find_subdir(container, |
| 1068 | LTTV_STATE_TRACEFILES); |
| 1069 | |
| 1070 | value = lttv_attribute_add(container, LTTV_STATE_PROCESSES, |
| 1071 | LTTV_POINTER); |
| 1072 | *(value.v_pointer) = lttv_state_copy_process_table(self->processes); |
| 1073 | |
| 1074 | /* Add the currently running processes array */ |
| 1075 | nb_cpus = ltt_trace_get_num_cpu(self->parent.t); |
| 1076 | running_process = g_new(guint, nb_cpus); |
| 1077 | for(i=0;i<nb_cpus;i++) { |
| 1078 | running_process[i] = self->running_process[i]->pid; |
| 1079 | } |
| 1080 | value = lttv_attribute_add(container, LTTV_STATE_RUNNING_PROCESS, |
| 1081 | LTTV_POINTER); |
| 1082 | *(value.v_pointer) = running_process; |
| 1083 | |
| 1084 | g_info("State save"); |
| 1085 | |
| 1086 | nb_tracefile = self->parent.tracefiles->len; |
| 1087 | |
| 1088 | for(i = 0 ; i < nb_tracefile ; i++) { |
| 1089 | tfcs = |
| 1090 | LTTV_TRACEFILE_STATE(g_array_index(self->parent.tracefiles, |
| 1091 | LttvTracefileContext*, i)); |
| 1092 | tracefile_tree = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL); |
| 1093 | value = lttv_attribute_add(tracefiles_tree, i, |
| 1094 | LTTV_GOBJECT); |
| 1095 | *(value.v_gobject) = (GObject *)tracefile_tree; |
| 1096 | #if 0 |
| 1097 | value = lttv_attribute_add(tracefile_tree, LTTV_STATE_PROCESS, |
| 1098 | LTTV_UINT); |
| 1099 | *(value.v_uint) = tfcs->process->pid; |
| 1100 | #endif //0 |
| 1101 | value = lttv_attribute_add(tracefile_tree, LTTV_STATE_EVENT, |
| 1102 | LTTV_POINTER); |
| 1103 | /* Only save the position if the tfs has not infinite time. */ |
| 1104 | //if(!g_tree_lookup(self->parent.ts_context->pqueue, &tfcs->parent) |
| 1105 | // && current_tfcs != tfcs) { |
| 1106 | if(ltt_time_compare(tfcs->parent.timestamp, ltt_time_infinite) == 0) { |
| 1107 | *(value.v_pointer) = NULL; |
| 1108 | } else { |
| 1109 | LttEvent *e = ltt_tracefile_get_event(tfcs->parent.tf); |
| 1110 | ep = ltt_event_position_new(); |
| 1111 | ltt_event_position(e, ep); |
| 1112 | *(value.v_pointer) = ep; |
| 1113 | |
| 1114 | guint nb_block, offset; |
| 1115 | guint64 tsc; |
| 1116 | LttTracefile *tf; |
| 1117 | ltt_event_position_get(ep, &tf, &nb_block, &offset, &tsc); |
| 1118 | g_info("Block %u offset %u tsc %llu time %lu.%lu", nb_block, offset, |
| 1119 | tsc, |
| 1120 | tfcs->parent.timestamp.tv_sec, tfcs->parent.timestamp.tv_nsec); |
| 1121 | } |
| 1122 | } |
| 1123 | } |
| 1124 | |
| 1125 | |
| 1126 | static void state_restore(LttvTraceState *self, LttvAttribute *container) |
| 1127 | { |
| 1128 | guint i, nb_tracefile, pid, nb_cpus; |
| 1129 | |
| 1130 | LttvTracefileState *tfcs; |
| 1131 | |
| 1132 | LttvAttribute *tracefiles_tree, *tracefile_tree; |
| 1133 | |
| 1134 | guint *running_process; |
| 1135 | |
| 1136 | LttvAttributeType type; |
| 1137 | |
| 1138 | LttvAttributeValue value; |
| 1139 | |
| 1140 | LttvAttributeName name; |
| 1141 | |
| 1142 | gboolean is_named; |
| 1143 | |
| 1144 | LttEventPosition *ep; |
| 1145 | |
| 1146 | LttvTracesetContext *tsc = self->parent.ts_context; |
| 1147 | |
| 1148 | tracefiles_tree = lttv_attribute_find_subdir(container, |
| 1149 | LTTV_STATE_TRACEFILES); |
| 1150 | |
| 1151 | type = lttv_attribute_get_by_name(container, LTTV_STATE_PROCESSES, |
| 1152 | &value); |
| 1153 | g_assert(type == LTTV_POINTER); |
| 1154 | lttv_state_free_process_table(self->processes); |
| 1155 | self->processes = lttv_state_copy_process_table(*(value.v_pointer)); |
| 1156 | |
| 1157 | /* Add the currently running processes array */ |
| 1158 | nb_cpus = ltt_trace_get_num_cpu(self->parent.t); |
| 1159 | type = lttv_attribute_get_by_name(container, LTTV_STATE_RUNNING_PROCESS, |
| 1160 | &value); |
| 1161 | g_assert(type == LTTV_POINTER); |
| 1162 | running_process = *(value.v_pointer); |
| 1163 | for(i=0;i<nb_cpus;i++) { |
| 1164 | pid = running_process[i]; |
| 1165 | self->running_process[i] = lttv_state_find_process(self, i, pid); |
| 1166 | g_assert(self->running_process[i] != NULL); |
| 1167 | } |
| 1168 | |
| 1169 | |
| 1170 | nb_tracefile = self->parent.tracefiles->len; |
| 1171 | |
| 1172 | //g_tree_destroy(tsc->pqueue); |
| 1173 | //tsc->pqueue = g_tree_new(compare_tracefile); |
| 1174 | |
| 1175 | for(i = 0 ; i < nb_tracefile ; i++) { |
| 1176 | tfcs = |
| 1177 | LTTV_TRACEFILE_STATE(g_array_index(self->parent.tracefiles, |
| 1178 | LttvTracefileContext*, i)); |
| 1179 | type = lttv_attribute_get(tracefiles_tree, i, &name, &value, &is_named); |
| 1180 | g_assert(type == LTTV_GOBJECT); |
| 1181 | tracefile_tree = *((LttvAttribute **)(value.v_gobject)); |
| 1182 | #if 0 |
| 1183 | type = lttv_attribute_get_by_name(tracefile_tree, LTTV_STATE_PROCESS, |
| 1184 | &value); |
| 1185 | g_assert(type == LTTV_UINT); |
| 1186 | pid = *(value.v_uint); |
| 1187 | tfcs->process = lttv_state_find_process_or_create(tfcs, pid); |
| 1188 | #endif //0 |
| 1189 | type = lttv_attribute_get_by_name(tracefile_tree, LTTV_STATE_EVENT, |
| 1190 | &value); |
| 1191 | g_assert(type == LTTV_POINTER); |
| 1192 | //g_assert(*(value.v_pointer) != NULL); |
| 1193 | ep = *(value.v_pointer); |
| 1194 | g_assert(tfcs->parent.t_context != NULL); |
| 1195 | |
| 1196 | LttvTracefileContext *tfc = LTTV_TRACEFILE_CONTEXT(tfcs); |
| 1197 | g_tree_remove(tsc->pqueue, tfc); |
| 1198 | |
| 1199 | if(ep != NULL) { |
| 1200 | g_assert(ltt_tracefile_seek_position(tfc->tf, ep) == 0); |
| 1201 | tfc->timestamp = ltt_event_time(ltt_tracefile_get_event(tfc->tf)); |
| 1202 | g_assert(ltt_time_compare(tfc->timestamp, ltt_time_infinite) != 0); |
| 1203 | g_tree_insert(tsc->pqueue, tfc, tfc); |
| 1204 | g_info("Restoring state for a tf at time %lu.%lu", tfc->timestamp.tv_sec, tfc->timestamp.tv_nsec); |
| 1205 | } else { |
| 1206 | tfc->timestamp = ltt_time_infinite; |
| 1207 | } |
| 1208 | } |
| 1209 | } |
| 1210 | |
| 1211 | |
| 1212 | static void state_saved_free(LttvTraceState *self, LttvAttribute *container) |
| 1213 | { |
| 1214 | guint i, nb_tracefile, nb_cpus; |
| 1215 | |
| 1216 | LttvTracefileState *tfcs; |
| 1217 | |
| 1218 | LttvAttribute *tracefiles_tree, *tracefile_tree; |
| 1219 | |
| 1220 | guint *running_process; |
| 1221 | |
| 1222 | LttvAttributeType type; |
| 1223 | |
| 1224 | LttvAttributeValue value; |
| 1225 | |
| 1226 | LttvAttributeName name; |
| 1227 | |
| 1228 | gboolean is_named; |
| 1229 | |
| 1230 | LttEventPosition *ep; |
| 1231 | |
| 1232 | tracefiles_tree = lttv_attribute_find_subdir(container, |
| 1233 | LTTV_STATE_TRACEFILES); |
| 1234 | g_object_ref(G_OBJECT(tracefiles_tree)); |
| 1235 | lttv_attribute_remove_by_name(container, LTTV_STATE_TRACEFILES); |
| 1236 | |
| 1237 | type = lttv_attribute_get_by_name(container, LTTV_STATE_PROCESSES, |
| 1238 | &value); |
| 1239 | g_assert(type == LTTV_POINTER); |
| 1240 | lttv_state_free_process_table(*(value.v_pointer)); |
| 1241 | *(value.v_pointer) = NULL; |
| 1242 | lttv_attribute_remove_by_name(container, LTTV_STATE_PROCESSES); |
| 1243 | |
| 1244 | /* Free running processes array */ |
| 1245 | nb_cpus = ltt_trace_get_num_cpu(self->parent.t); |
| 1246 | type = lttv_attribute_get_by_name(container, LTTV_STATE_RUNNING_PROCESS, |
| 1247 | &value); |
| 1248 | g_assert(type == LTTV_POINTER); |
| 1249 | running_process = *(value.v_pointer); |
| 1250 | g_free(running_process); |
| 1251 | |
| 1252 | nb_tracefile = self->parent.tracefiles->len; |
| 1253 | |
| 1254 | for(i = 0 ; i < nb_tracefile ; i++) { |
| 1255 | tfcs = |
| 1256 | LTTV_TRACEFILE_STATE(g_array_index(self->parent.tracefiles, |
| 1257 | LttvTracefileContext*, i)); |
| 1258 | type = lttv_attribute_get(tracefiles_tree, i, &name, &value, &is_named); |
| 1259 | g_assert(type == LTTV_GOBJECT); |
| 1260 | tracefile_tree = *((LttvAttribute **)(value.v_gobject)); |
| 1261 | |
| 1262 | type = lttv_attribute_get_by_name(tracefile_tree, LTTV_STATE_EVENT, |
| 1263 | &value); |
| 1264 | g_assert(type == LTTV_POINTER); |
| 1265 | if(*(value.v_pointer) != NULL) g_free(*(value.v_pointer)); |
| 1266 | } |
| 1267 | g_object_unref(G_OBJECT(tracefiles_tree)); |
| 1268 | } |
| 1269 | |
| 1270 | |
| 1271 | static void free_saved_state(LttvTraceState *self) |
| 1272 | { |
| 1273 | guint i, nb; |
| 1274 | |
| 1275 | LttvAttributeType type; |
| 1276 | |
| 1277 | LttvAttributeValue value; |
| 1278 | |
| 1279 | LttvAttributeName name; |
| 1280 | |
| 1281 | gboolean is_named; |
| 1282 | |
| 1283 | LttvAttribute *saved_states; |
| 1284 | |
| 1285 | saved_states = lttv_attribute_find_subdir(self->parent.t_a, |
| 1286 | LTTV_STATE_SAVED_STATES); |
| 1287 | |
| 1288 | nb = lttv_attribute_get_number(saved_states); |
| 1289 | for(i = 0 ; i < nb ; i++) { |
| 1290 | type = lttv_attribute_get(saved_states, i, &name, &value, &is_named); |
| 1291 | g_assert(type == LTTV_GOBJECT); |
| 1292 | state_saved_free(self, *((LttvAttribute **)value.v_gobject)); |
| 1293 | } |
| 1294 | |
| 1295 | lttv_attribute_remove_by_name(self->parent.t_a, LTTV_STATE_SAVED_STATES); |
| 1296 | } |
| 1297 | |
| 1298 | |
| 1299 | static void |
| 1300 | create_max_time(LttvTraceState *tcs) |
| 1301 | { |
| 1302 | LttvAttributeValue v; |
| 1303 | |
| 1304 | lttv_attribute_find(tcs->parent.t_a, LTTV_STATE_SAVED_STATES_TIME, |
| 1305 | LTTV_POINTER, &v); |
| 1306 | g_assert(*(v.v_pointer) == NULL); |
| 1307 | *(v.v_pointer) = g_new(LttTime,1); |
| 1308 | *((LttTime *)*(v.v_pointer)) = ltt_time_zero; |
| 1309 | } |
| 1310 | |
| 1311 | |
| 1312 | static void |
| 1313 | get_max_time(LttvTraceState *tcs) |
| 1314 | { |
| 1315 | LttvAttributeValue v; |
| 1316 | |
| 1317 | lttv_attribute_find(tcs->parent.t_a, LTTV_STATE_SAVED_STATES_TIME, |
| 1318 | LTTV_POINTER, &v); |
| 1319 | g_assert(*(v.v_pointer) != NULL); |
| 1320 | tcs->max_time_state_recomputed_in_seek = (LttTime *)*(v.v_pointer); |
| 1321 | } |
| 1322 | |
| 1323 | |
| 1324 | static void |
| 1325 | free_max_time(LttvTraceState *tcs) |
| 1326 | { |
| 1327 | LttvAttributeValue v; |
| 1328 | |
| 1329 | lttv_attribute_find(tcs->parent.t_a, LTTV_STATE_SAVED_STATES_TIME, |
| 1330 | LTTV_POINTER, &v); |
| 1331 | g_free(*(v.v_pointer)); |
| 1332 | *(v.v_pointer) = NULL; |
| 1333 | } |
| 1334 | |
| 1335 | |
| 1336 | typedef struct _LttvNameTables { |
| 1337 | // FIXME GQuark *eventtype_names; |
| 1338 | GQuark *syscall_names; |
| 1339 | guint nb_syscalls; |
| 1340 | GQuark *trap_names; |
| 1341 | guint nb_traps; |
| 1342 | GQuark *irq_names; |
| 1343 | GQuark *soft_irq_names; |
| 1344 | } LttvNameTables; |
| 1345 | |
| 1346 | |
| 1347 | static void |
| 1348 | create_name_tables(LttvTraceState *tcs) |
| 1349 | { |
| 1350 | int i, nb; |
| 1351 | |
| 1352 | GQuark f_name, e_name; |
| 1353 | |
| 1354 | LttvTraceHook h; |
| 1355 | |
| 1356 | LttvTraceHookByFacility *thf; |
| 1357 | |
| 1358 | LttEventType *et; |
| 1359 | |
| 1360 | LttType *t; |
| 1361 | |
| 1362 | GString *fe_name = g_string_new(""); |
| 1363 | |
| 1364 | LttvNameTables *name_tables = g_new(LttvNameTables, 1); |
| 1365 | |
| 1366 | LttvAttributeValue v; |
| 1367 | |
| 1368 | lttv_attribute_find(tcs->parent.t_a, LTTV_STATE_NAME_TABLES, |
| 1369 | LTTV_POINTER, &v); |
| 1370 | g_assert(*(v.v_pointer) == NULL); |
| 1371 | *(v.v_pointer) = name_tables; |
| 1372 | #if 0 // Use iteration over the facilities_by_name and then list all event |
| 1373 | // types of each facility |
| 1374 | nb = ltt_trace_eventtype_number(tcs->parent.t); |
| 1375 | name_tables->eventtype_names = g_new(GQuark, nb); |
| 1376 | for(i = 0 ; i < nb ; i++) { |
| 1377 | et = ltt_trace_eventtype_get(tcs->parent.t, i); |
| 1378 | e_name = ltt_eventtype_name(et); |
| 1379 | f_name = ltt_facility_name(ltt_eventtype_facility(et)); |
| 1380 | g_string_printf(fe_name, "%s.%s", f_name, e_name); |
| 1381 | name_tables->eventtype_names[i] = g_quark_from_string(fe_name->str); |
| 1382 | } |
| 1383 | #endif //0 |
| 1384 | if(!lttv_trace_find_hook(tcs->parent.t, |
| 1385 | LTT_FACILITY_KERNEL_ARCH, LTT_EVENT_SYSCALL_ENTRY, |
| 1386 | LTT_FIELD_SYSCALL_ID, 0, 0, |
| 1387 | NULL, NULL, &h)) { |
| 1388 | |
| 1389 | thf = lttv_trace_hook_get_first(&h); |
| 1390 | |
| 1391 | t = ltt_field_type(thf->f1); |
| 1392 | nb = ltt_type_element_number(t); |
| 1393 | |
| 1394 | lttv_trace_hook_destroy(&h); |
| 1395 | |
| 1396 | name_tables->syscall_names = g_new(GQuark, nb); |
| 1397 | name_tables->nb_syscalls = nb; |
| 1398 | |
| 1399 | for(i = 0 ; i < nb ; i++) { |
| 1400 | name_tables->syscall_names[i] = ltt_enum_string_get(t, i); |
| 1401 | } |
| 1402 | |
| 1403 | //name_tables->syscall_names = g_new(GQuark, 256); |
| 1404 | //for(i = 0 ; i < 256 ; i++) { |
| 1405 | // g_string_printf(fe_name, "syscall %d", i); |
| 1406 | // name_tables->syscall_names[i] = g_quark_from_string(fe_name->str); |
| 1407 | //} |
| 1408 | } else { |
| 1409 | name_tables->syscall_names = NULL; |
| 1410 | name_tables->nb_syscalls = 0; |
| 1411 | } |
| 1412 | |
| 1413 | if(!lttv_trace_find_hook(tcs->parent.t, LTT_FACILITY_KERNEL, |
| 1414 | LTT_EVENT_TRAP_ENTRY, |
| 1415 | LTT_FIELD_TRAP_ID, 0, 0, |
| 1416 | NULL, NULL, &h)) { |
| 1417 | |
| 1418 | thf = lttv_trace_hook_get_first(&h); |
| 1419 | |
| 1420 | t = ltt_field_type(thf->f1); |
| 1421 | //nb = ltt_type_element_number(t); |
| 1422 | |
| 1423 | lttv_trace_hook_destroy(&h); |
| 1424 | |
| 1425 | /* |
| 1426 | name_tables->trap_names = g_new(GQuark, nb); |
| 1427 | for(i = 0 ; i < nb ; i++) { |
| 1428 | name_tables->trap_names[i] = g_quark_from_string( |
| 1429 | ltt_enum_string_get(t, i)); |
| 1430 | } |
| 1431 | */ |
| 1432 | name_tables->nb_traps = 256; |
| 1433 | name_tables->trap_names = g_new(GQuark, 256); |
| 1434 | for(i = 0 ; i < 256 ; i++) { |
| 1435 | g_string_printf(fe_name, "trap %d", i); |
| 1436 | name_tables->trap_names[i] = g_quark_from_string(fe_name->str); |
| 1437 | } |
| 1438 | } else { |
| 1439 | name_tables->trap_names = NULL; |
| 1440 | name_tables->nb_traps = 0; |
| 1441 | } |
| 1442 | |
| 1443 | if(!lttv_trace_find_hook(tcs->parent.t, |
| 1444 | LTT_FACILITY_KERNEL, LTT_EVENT_IRQ_ENTRY, |
| 1445 | LTT_FIELD_IRQ_ID, 0, 0, |
| 1446 | NULL, NULL, &h)) { |
| 1447 | |
| 1448 | thf = lttv_trace_hook_get_first(&h); |
| 1449 | |
| 1450 | t = ltt_field_type(thf->f1); |
| 1451 | //nb = ltt_type_element_number(t); |
| 1452 | |
| 1453 | lttv_trace_hook_destroy(&h); |
| 1454 | |
| 1455 | /* |
| 1456 | name_tables->irq_names = g_new(GQuark, nb); |
| 1457 | for(i = 0 ; i < nb ; i++) { |
| 1458 | name_tables->irq_names[i] = g_quark_from_string(ltt_enum_string_get(t, i)); |
| 1459 | } |
| 1460 | */ |
| 1461 | |
| 1462 | name_tables->irq_names = g_new(GQuark, 256); |
| 1463 | for(i = 0 ; i < 256 ; i++) { |
| 1464 | g_string_printf(fe_name, "irq %d", i); |
| 1465 | name_tables->irq_names[i] = g_quark_from_string(fe_name->str); |
| 1466 | } |
| 1467 | } else { |
| 1468 | name_tables->irq_names = NULL; |
| 1469 | } |
| 1470 | /* |
| 1471 | name_tables->soft_irq_names = g_new(GQuark, nb); |
| 1472 | for(i = 0 ; i < nb ; i++) { |
| 1473 | name_tables->soft_irq_names[i] = g_quark_from_string(ltt_enum_string_get(t, i)); |
| 1474 | } |
| 1475 | */ |
| 1476 | |
| 1477 | name_tables->soft_irq_names = g_new(GQuark, 256); |
| 1478 | for(i = 0 ; i < 256 ; i++) { |
| 1479 | g_string_printf(fe_name, "softirq %d", i); |
| 1480 | name_tables->soft_irq_names[i] = g_quark_from_string(fe_name->str); |
| 1481 | } |
| 1482 | |
| 1483 | |
| 1484 | g_string_free(fe_name, TRUE); |
| 1485 | } |
| 1486 | |
| 1487 | |
| 1488 | static void |
| 1489 | get_name_tables(LttvTraceState *tcs) |
| 1490 | { |
| 1491 | LttvNameTables *name_tables; |
| 1492 | |
| 1493 | LttvAttributeValue v; |
| 1494 | |
| 1495 | lttv_attribute_find(tcs->parent.t_a, LTTV_STATE_NAME_TABLES, |
| 1496 | LTTV_POINTER, &v); |
| 1497 | g_assert(*(v.v_pointer) != NULL); |
| 1498 | name_tables = (LttvNameTables *)*(v.v_pointer); |
| 1499 | //tcs->eventtype_names = name_tables->eventtype_names; |
| 1500 | tcs->syscall_names = name_tables->syscall_names; |
| 1501 | tcs->nb_syscalls = name_tables->nb_syscalls; |
| 1502 | tcs->trap_names = name_tables->trap_names; |
| 1503 | tcs->nb_traps = name_tables->nb_traps; |
| 1504 | tcs->irq_names = name_tables->irq_names; |
| 1505 | tcs->soft_irq_names = name_tables->soft_irq_names; |
| 1506 | } |
| 1507 | |
| 1508 | |
| 1509 | static void |
| 1510 | free_name_tables(LttvTraceState *tcs) |
| 1511 | { |
| 1512 | LttvNameTables *name_tables; |
| 1513 | |
| 1514 | LttvAttributeValue v; |
| 1515 | |
| 1516 | lttv_attribute_find(tcs->parent.t_a, LTTV_STATE_NAME_TABLES, |
| 1517 | LTTV_POINTER, &v); |
| 1518 | name_tables = (LttvNameTables *)*(v.v_pointer); |
| 1519 | *(v.v_pointer) = NULL; |
| 1520 | |
| 1521 | // g_free(name_tables->eventtype_names); |
| 1522 | if(name_tables->syscall_names) g_free(name_tables->syscall_names); |
| 1523 | if(name_tables->trap_names) g_free(name_tables->trap_names); |
| 1524 | if(name_tables->irq_names) g_free(name_tables->irq_names); |
| 1525 | if(name_tables->soft_irq_names) g_free(name_tables->soft_irq_names); |
| 1526 | if(name_tables) g_free(name_tables); |
| 1527 | } |
| 1528 | |
| 1529 | #ifdef HASH_TABLE_DEBUG |
| 1530 | |
| 1531 | static void test_process(gpointer key, gpointer value, gpointer user_data) |
| 1532 | { |
| 1533 | LttvProcessState *process = (LttvProcessState *)value; |
| 1534 | |
| 1535 | /* Test for process corruption */ |
| 1536 | guint stack_len = process->execution_stack->len; |
| 1537 | } |
| 1538 | |
| 1539 | static void hash_table_check(GHashTable *table) |
| 1540 | { |
| 1541 | g_hash_table_foreach(table, test_process, NULL); |
| 1542 | } |
| 1543 | |
| 1544 | |
| 1545 | #endif |
| 1546 | |
| 1547 | |
| 1548 | static void push_state(LttvTracefileState *tfs, LttvExecutionMode t, |
| 1549 | guint state_id) |
| 1550 | { |
| 1551 | LttvExecutionState *es; |
| 1552 | |
| 1553 | LttvTraceState *ts = (LttvTraceState*)tfs->parent.t_context; |
| 1554 | guint cpu = tfs->cpu; |
| 1555 | |
| 1556 | #ifdef HASH_TABLE_DEBUG |
| 1557 | hash_table_check(ts->processes); |
| 1558 | #endif |
| 1559 | LttvProcessState *process = ts->running_process[cpu]; |
| 1560 | |
| 1561 | guint depth = process->execution_stack->len; |
| 1562 | |
| 1563 | process->execution_stack = |
| 1564 | g_array_set_size(process->execution_stack, depth + 1); |
| 1565 | /* Keep in sync */ |
| 1566 | process->state = |
| 1567 | &g_array_index(process->execution_stack, LttvExecutionState, depth - 1); |
| 1568 | |
| 1569 | es = &g_array_index(process->execution_stack, LttvExecutionState, depth); |
| 1570 | es->t = t; |
| 1571 | es->n = state_id; |
| 1572 | es->entry = es->change = tfs->parent.timestamp; |
| 1573 | es->cum_cpu_time = ltt_time_zero; |
| 1574 | es->s = process->state->s; |
| 1575 | process->state = es; |
| 1576 | } |
| 1577 | |
| 1578 | /* pop state |
| 1579 | * return 1 when empty, else 0 */ |
| 1580 | int lttv_state_pop_state_cleanup(LttvProcessState *process, |
| 1581 | LttvTracefileState *tfs) |
| 1582 | { |
| 1583 | guint cpu = tfs->cpu; |
| 1584 | LttvTraceState *ts = (LttvTraceState*)tfs->parent.t_context; |
| 1585 | |
| 1586 | guint depth = process->execution_stack->len; |
| 1587 | |
| 1588 | if(depth == 1){ |
| 1589 | return 1; |
| 1590 | } |
| 1591 | |
| 1592 | process->execution_stack = |
| 1593 | g_array_set_size(process->execution_stack, depth - 1); |
| 1594 | process->state = &g_array_index(process->execution_stack, LttvExecutionState, |
| 1595 | depth - 2); |
| 1596 | process->state->change = tfs->parent.timestamp; |
| 1597 | |
| 1598 | return 0; |
| 1599 | } |
| 1600 | |
| 1601 | static void pop_state(LttvTracefileState *tfs, LttvExecutionMode t) |
| 1602 | { |
| 1603 | guint cpu = tfs->cpu; |
| 1604 | LttvTraceState *ts = (LttvTraceState*)tfs->parent.t_context; |
| 1605 | LttvProcessState *process = ts->running_process[cpu]; |
| 1606 | |
| 1607 | guint depth = process->execution_stack->len; |
| 1608 | |
| 1609 | if(process->state->t != t){ |
| 1610 | g_info("Different execution mode type (%lu.%09lu): ignore it\n", |
| 1611 | tfs->parent.timestamp.tv_sec, tfs->parent.timestamp.tv_nsec); |
| 1612 | g_info("process state has %s when pop_int is %s\n", |
| 1613 | g_quark_to_string(process->state->t), |
| 1614 | g_quark_to_string(t)); |
| 1615 | g_info("{ %u, %u, %s, %s, %s }\n", |
| 1616 | process->pid, |
| 1617 | process->ppid, |
| 1618 | g_quark_to_string(process->name), |
| 1619 | g_quark_to_string(process->brand), |
| 1620 | g_quark_to_string(process->state->s)); |
| 1621 | return; |
| 1622 | } |
| 1623 | |
| 1624 | if(depth == 1){ |
| 1625 | g_info("Trying to pop last state on stack (%lu.%09lu): ignore it\n", |
| 1626 | tfs->parent.timestamp.tv_sec, tfs->parent.timestamp.tv_nsec); |
| 1627 | return; |
| 1628 | } |
| 1629 | |
| 1630 | process->execution_stack = |
| 1631 | g_array_set_size(process->execution_stack, depth - 1); |
| 1632 | process->state = &g_array_index(process->execution_stack, LttvExecutionState, |
| 1633 | depth - 2); |
| 1634 | process->state->change = tfs->parent.timestamp; |
| 1635 | } |
| 1636 | |
| 1637 | struct search_result { |
| 1638 | const LttTime *time; /* Requested time */ |
| 1639 | LttTime *best; /* Best result */ |
| 1640 | }; |
| 1641 | |
| 1642 | static gint search_usertrace(gconstpointer a, gconstpointer b) |
| 1643 | { |
| 1644 | const LttTime *elem_time = (const LttTime*)a; |
| 1645 | /* Explicit non const cast */ |
| 1646 | struct search_result *res = (struct search_result *)b; |
| 1647 | |
| 1648 | if(ltt_time_compare(*elem_time, *(res->time)) < 0) { |
| 1649 | /* The usertrace was created before the schedchange */ |
| 1650 | /* Get larger keys */ |
| 1651 | return 1; |
| 1652 | } else if(ltt_time_compare(*elem_time, *(res->time)) >= 0) { |
| 1653 | /* The usertrace was created after the schedchange time */ |
| 1654 | /* Get smaller keys */ |
| 1655 | if(res->best) { |
| 1656 | if(ltt_time_compare(*elem_time, *res->best) < 0) { |
| 1657 | res->best = elem_time; |
| 1658 | } |
| 1659 | } else { |
| 1660 | res->best = elem_time; |
| 1661 | } |
| 1662 | return -1; |
| 1663 | } |
| 1664 | return 0; |
| 1665 | } |
| 1666 | |
| 1667 | static LttvTracefileState *ltt_state_usertrace_find(LttvTraceState *tcs, |
| 1668 | guint pid, const LttTime *timestamp) |
| 1669 | { |
| 1670 | LttvTracefileState *tfs = NULL; |
| 1671 | struct search_result res; |
| 1672 | /* Find the usertrace associated with a pid and time interval. |
| 1673 | * Search in the usertraces by PID (within a hash) and then, for each |
| 1674 | * corresponding element of the array, find the first one with creation |
| 1675 | * timestamp the lowest, but higher or equal to "timestamp". */ |
| 1676 | res.time = timestamp; |
| 1677 | res.best = NULL; |
| 1678 | GTree *usertrace_tree = g_hash_table_lookup(tcs->usertraces, (gpointer)pid); |
| 1679 | if(usertrace_tree) { |
| 1680 | g_tree_search(usertrace_tree, search_usertrace, &res); |
| 1681 | if(res.best) |
| 1682 | tfs = g_tree_lookup(usertrace_tree, res.best); |
| 1683 | } |
| 1684 | |
| 1685 | return tfs; |
| 1686 | } |
| 1687 | |
| 1688 | |
| 1689 | LttvProcessState * |
| 1690 | lttv_state_create_process(LttvTraceState *tcs, LttvProcessState *parent, |
| 1691 | guint cpu, guint pid, guint tgid, GQuark name, const LttTime *timestamp) |
| 1692 | { |
| 1693 | LttvProcessState *process = g_new(LttvProcessState, 1); |
| 1694 | |
| 1695 | LttvExecutionState *es; |
| 1696 | |
| 1697 | LttvTraceContext *tc = (LttvTraceContext*)tcs; |
| 1698 | |
| 1699 | char buffer[128]; |
| 1700 | |
| 1701 | process->pid = pid; |
| 1702 | process->tgid = tgid; |
| 1703 | process->cpu = cpu; |
| 1704 | process->name = name; |
| 1705 | process->brand = LTTV_STATE_UNBRANDED; |
| 1706 | //process->last_cpu = tfs->cpu_name; |
| 1707 | //process->last_cpu_index = ltt_tracefile_num(((LttvTracefileContext*)tfs)->tf); |
| 1708 | process->type = LTTV_STATE_USER_THREAD; |
| 1709 | process->usertrace = ltt_state_usertrace_find(tcs, pid, timestamp); |
| 1710 | process->current_function = 0; //function 0x0 by default. |
| 1711 | |
| 1712 | g_info("Process %u, core %p", process->pid, process); |
| 1713 | g_hash_table_insert(tcs->processes, process, process); |
| 1714 | |
| 1715 | if(parent) { |
| 1716 | process->ppid = parent->pid; |
| 1717 | process->creation_time = *timestamp; |
| 1718 | } |
| 1719 | |
| 1720 | /* No parent. This process exists but we are missing all information about |
| 1721 | its creation. The birth time is set to zero but we remember the time of |
| 1722 | insertion */ |
| 1723 | |
| 1724 | else { |
| 1725 | process->ppid = 0; |
| 1726 | process->creation_time = ltt_time_zero; |
| 1727 | } |
| 1728 | |
| 1729 | process->insertion_time = *timestamp; |
| 1730 | sprintf(buffer,"%d-%lu.%lu",pid, process->creation_time.tv_sec, |
| 1731 | process->creation_time.tv_nsec); |
| 1732 | process->pid_time = g_quark_from_string(buffer); |
| 1733 | process->cpu = cpu; |
| 1734 | //process->last_cpu = tfs->cpu_name; |
| 1735 | //process->last_cpu_index = ltt_tracefile_num(((LttvTracefileContext*)tfs)->tf); |
| 1736 | process->execution_stack = g_array_sized_new(FALSE, FALSE, |
| 1737 | sizeof(LttvExecutionState), PREALLOCATED_EXECUTION_STACK); |
| 1738 | process->execution_stack = g_array_set_size(process->execution_stack, 2); |
| 1739 | es = process->state = &g_array_index(process->execution_stack, |
| 1740 | LttvExecutionState, 0); |
| 1741 | es->t = LTTV_STATE_USER_MODE; |
| 1742 | es->n = LTTV_STATE_SUBMODE_NONE; |
| 1743 | es->entry = *timestamp; |
| 1744 | //g_assert(timestamp->tv_sec != 0); |
| 1745 | es->change = *timestamp; |
| 1746 | es->cum_cpu_time = ltt_time_zero; |
| 1747 | es->s = LTTV_STATE_RUN; |
| 1748 | |
| 1749 | es = process->state = &g_array_index(process->execution_stack, |
| 1750 | LttvExecutionState, 1); |
| 1751 | es->t = LTTV_STATE_SYSCALL; |
| 1752 | es->n = LTTV_STATE_SUBMODE_NONE; |
| 1753 | es->entry = *timestamp; |
| 1754 | //g_assert(timestamp->tv_sec != 0); |
| 1755 | es->change = *timestamp; |
| 1756 | es->cum_cpu_time = ltt_time_zero; |
| 1757 | es->s = LTTV_STATE_WAIT_FORK; |
| 1758 | |
| 1759 | /* Allocate an empty function call stack. If it's empty, use 0x0. */ |
| 1760 | process->user_stack = g_array_sized_new(FALSE, FALSE, |
| 1761 | sizeof(guint64), 0); |
| 1762 | |
| 1763 | return process; |
| 1764 | } |
| 1765 | |
| 1766 | LttvProcessState *lttv_state_find_process(LttvTraceState *ts, guint cpu, |
| 1767 | guint pid) |
| 1768 | { |
| 1769 | LttvProcessState key; |
| 1770 | LttvProcessState *process; |
| 1771 | |
| 1772 | key.pid = pid; |
| 1773 | key.cpu = cpu; |
| 1774 | process = g_hash_table_lookup(ts->processes, &key); |
| 1775 | return process; |
| 1776 | } |
| 1777 | |
| 1778 | LttvProcessState * |
| 1779 | lttv_state_find_process_or_create(LttvTraceState *ts, guint cpu, guint pid, |
| 1780 | const LttTime *timestamp) |
| 1781 | { |
| 1782 | LttvProcessState *process = lttv_state_find_process(ts, cpu, pid); |
| 1783 | LttvExecutionState *es; |
| 1784 | |
| 1785 | /* Put ltt_time_zero creation time for unexisting processes */ |
| 1786 | if(unlikely(process == NULL)) { |
| 1787 | process = lttv_state_create_process(ts, |
| 1788 | NULL, cpu, pid, 0, LTTV_STATE_UNNAMED, timestamp); |
| 1789 | /* We are not sure is it's a kernel thread or normal thread, put the |
| 1790 | * bottom stack state to unknown */ |
| 1791 | es = &g_array_index(process->execution_stack, LttvExecutionState, 0); |
| 1792 | es->t = LTTV_STATE_MODE_UNKNOWN; |
| 1793 | } |
| 1794 | return process; |
| 1795 | } |
| 1796 | |
| 1797 | /* FIXME : this function should be called when we receive an event telling that |
| 1798 | * release_task has been called in the kernel. In happens generally when |
| 1799 | * the parent waits for its child terminaison, but may also happen in special |
| 1800 | * cases in the child's exit : when the parent ignores its children SIGCCHLD or |
| 1801 | * has the flag SA_NOCLDWAIT. It can also happen when the child is part |
| 1802 | * of a killed thread ground, but isn't the leader. |
| 1803 | */ |
| 1804 | static void exit_process(LttvTracefileState *tfs, LttvProcessState *process) |
| 1805 | { |
| 1806 | LttvTraceState *ts = LTTV_TRACE_STATE(tfs->parent.t_context); |
| 1807 | LttvProcessState key; |
| 1808 | |
| 1809 | key.pid = process->pid; |
| 1810 | key.cpu = process->cpu; |
| 1811 | g_hash_table_remove(ts->processes, &key); |
| 1812 | g_array_free(process->execution_stack, TRUE); |
| 1813 | g_array_free(process->user_stack, TRUE); |
| 1814 | g_free(process); |
| 1815 | } |
| 1816 | |
| 1817 | |
| 1818 | static void free_process_state(gpointer key, gpointer value,gpointer user_data) |
| 1819 | { |
| 1820 | g_array_free(((LttvProcessState *)value)->execution_stack, TRUE); |
| 1821 | g_array_free(((LttvProcessState *)value)->user_stack, TRUE); |
| 1822 | g_free(value); |
| 1823 | } |
| 1824 | |
| 1825 | |
| 1826 | static void lttv_state_free_process_table(GHashTable *processes) |
| 1827 | { |
| 1828 | g_hash_table_foreach(processes, free_process_state, NULL); |
| 1829 | g_hash_table_destroy(processes); |
| 1830 | } |
| 1831 | |
| 1832 | |
| 1833 | static gboolean syscall_entry(void *hook_data, void *call_data) |
| 1834 | { |
| 1835 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 1836 | guint cpu = s->cpu; |
| 1837 | LttvTraceState *ts = (LttvTraceState*)s->parent.t_context; |
| 1838 | LttvProcessState *process = ts->running_process[cpu]; |
| 1839 | LttEvent *e = ltt_tracefile_get_event(s->parent.tf); |
| 1840 | LttvTraceHookByFacility *thf = (LttvTraceHookByFacility *)hook_data; |
| 1841 | LttField *f = thf->f1; |
| 1842 | |
| 1843 | LttvExecutionSubmode submode; |
| 1844 | |
| 1845 | guint nb_syscalls = ((LttvTraceState *)(s->parent.t_context))->nb_syscalls; |
| 1846 | guint syscall = ltt_event_get_unsigned(e, f); |
| 1847 | |
| 1848 | if(syscall < nb_syscalls) { |
| 1849 | submode = ((LttvTraceState *)(s->parent.t_context))->syscall_names[ |
| 1850 | syscall]; |
| 1851 | } else { |
| 1852 | /* Fixup an incomplete syscall table */ |
| 1853 | GString *string = g_string_new(""); |
| 1854 | g_string_printf(string, "syscall %u", syscall); |
| 1855 | submode = g_quark_from_string(string->str); |
| 1856 | g_string_free(string, TRUE); |
| 1857 | } |
| 1858 | /* There can be no system call from PID 0 : unknown state */ |
| 1859 | if(process->pid != 0) |
| 1860 | push_state(s, LTTV_STATE_SYSCALL, submode); |
| 1861 | return FALSE; |
| 1862 | } |
| 1863 | |
| 1864 | |
| 1865 | static gboolean syscall_exit(void *hook_data, void *call_data) |
| 1866 | { |
| 1867 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 1868 | guint cpu = s->cpu; |
| 1869 | LttvTraceState *ts = (LttvTraceState*)s->parent.t_context; |
| 1870 | LttvProcessState *process = ts->running_process[cpu]; |
| 1871 | |
| 1872 | /* There can be no system call from PID 0 : unknown state */ |
| 1873 | if(process->pid != 0) |
| 1874 | pop_state(s, LTTV_STATE_SYSCALL); |
| 1875 | return FALSE; |
| 1876 | } |
| 1877 | |
| 1878 | |
| 1879 | static gboolean trap_entry(void *hook_data, void *call_data) |
| 1880 | { |
| 1881 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 1882 | LttEvent *e = ltt_tracefile_get_event(s->parent.tf); |
| 1883 | LttvTraceHookByFacility *thf = (LttvTraceHookByFacility *)hook_data; |
| 1884 | LttField *f = thf->f1; |
| 1885 | |
| 1886 | LttvExecutionSubmode submode; |
| 1887 | |
| 1888 | guint64 nb_traps = ((LttvTraceState *)(s->parent.t_context))->nb_traps; |
| 1889 | guint64 trap = ltt_event_get_long_unsigned(e, f); |
| 1890 | |
| 1891 | if(trap < nb_traps) { |
| 1892 | submode = ((LttvTraceState *)(s->parent.t_context))->trap_names[trap]; |
| 1893 | } else { |
| 1894 | /* Fixup an incomplete trap table */ |
| 1895 | GString *string = g_string_new(""); |
| 1896 | g_string_printf(string, "trap %llu", trap); |
| 1897 | submode = g_quark_from_string(string->str); |
| 1898 | g_string_free(string, TRUE); |
| 1899 | } |
| 1900 | |
| 1901 | push_state(s, LTTV_STATE_TRAP, submode); |
| 1902 | return FALSE; |
| 1903 | } |
| 1904 | |
| 1905 | |
| 1906 | static gboolean trap_exit(void *hook_data, void *call_data) |
| 1907 | { |
| 1908 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 1909 | |
| 1910 | pop_state(s, LTTV_STATE_TRAP); |
| 1911 | return FALSE; |
| 1912 | } |
| 1913 | |
| 1914 | |
| 1915 | static gboolean irq_entry(void *hook_data, void *call_data) |
| 1916 | { |
| 1917 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 1918 | LttEvent *e = ltt_tracefile_get_event(s->parent.tf); |
| 1919 | guint8 fac_id = ltt_event_facility_id(e); |
| 1920 | guint8 ev_id = ltt_event_eventtype_id(e); |
| 1921 | LttvTraceHookByFacility *thf = (LttvTraceHookByFacility *)hook_data; |
| 1922 | // g_assert(lttv_trace_hook_get_first((LttvTraceHook *)hook_data)->f1 != NULL); |
| 1923 | g_assert(thf->f1 != NULL); |
| 1924 | // g_assert(thf == lttv_trace_hook_get_first((LttvTraceHook *)hook_data)); |
| 1925 | LttField *f = thf->f1; |
| 1926 | |
| 1927 | LttvExecutionSubmode submode; |
| 1928 | |
| 1929 | submode = ((LttvTraceState *)(s->parent.t_context))->irq_names[ |
| 1930 | ltt_event_get_unsigned(e, f)]; |
| 1931 | |
| 1932 | /* Do something with the info about being in user or system mode when int? */ |
| 1933 | push_state(s, LTTV_STATE_IRQ, submode); |
| 1934 | return FALSE; |
| 1935 | } |
| 1936 | |
| 1937 | static gboolean soft_irq_exit(void *hook_data, void *call_data) |
| 1938 | { |
| 1939 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 1940 | |
| 1941 | pop_state(s, LTTV_STATE_SOFT_IRQ); |
| 1942 | return FALSE; |
| 1943 | } |
| 1944 | |
| 1945 | |
| 1946 | |
| 1947 | static gboolean irq_exit(void *hook_data, void *call_data) |
| 1948 | { |
| 1949 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 1950 | |
| 1951 | pop_state(s, LTTV_STATE_IRQ); |
| 1952 | return FALSE; |
| 1953 | } |
| 1954 | |
| 1955 | static gboolean soft_irq_entry(void *hook_data, void *call_data) |
| 1956 | { |
| 1957 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 1958 | LttEvent *e = ltt_tracefile_get_event(s->parent.tf); |
| 1959 | guint8 fac_id = ltt_event_facility_id(e); |
| 1960 | guint8 ev_id = ltt_event_eventtype_id(e); |
| 1961 | LttvTraceHookByFacility *thf = (LttvTraceHookByFacility *)hook_data; |
| 1962 | // g_assert(lttv_trace_hook_get_first((LttvTraceHook *)hook_data)->f1 != NULL); |
| 1963 | g_assert(thf->f1 != NULL); |
| 1964 | // g_assert(thf == lttv_trace_hook_get_first((LttvTraceHook *)hook_data)); |
| 1965 | LttField *f = thf->f1; |
| 1966 | |
| 1967 | LttvExecutionSubmode submode; |
| 1968 | |
| 1969 | submode = ((LttvTraceState *)(s->parent.t_context))->soft_irq_names[ |
| 1970 | ltt_event_get_long_unsigned(e, f)]; |
| 1971 | |
| 1972 | /* Do something with the info about being in user or system mode when int? */ |
| 1973 | push_state(s, LTTV_STATE_SOFT_IRQ, submode); |
| 1974 | return FALSE; |
| 1975 | } |
| 1976 | |
| 1977 | static void push_function(LttvTracefileState *tfs, guint64 funcptr) |
| 1978 | { |
| 1979 | guint64 *new_func; |
| 1980 | |
| 1981 | LttvTraceState *ts = (LttvTraceState*)tfs->parent.t_context; |
| 1982 | guint cpu = tfs->cpu; |
| 1983 | LttvProcessState *process = ts->running_process[cpu]; |
| 1984 | |
| 1985 | guint depth = process->user_stack->len; |
| 1986 | |
| 1987 | process->user_stack = |
| 1988 | g_array_set_size(process->user_stack, depth + 1); |
| 1989 | |
| 1990 | new_func = &g_array_index(process->user_stack, guint64, depth); |
| 1991 | *new_func = funcptr; |
| 1992 | process->current_function = funcptr; |
| 1993 | } |
| 1994 | |
| 1995 | static void pop_function(LttvTracefileState *tfs, guint64 funcptr) |
| 1996 | { |
| 1997 | guint cpu = tfs->cpu; |
| 1998 | LttvTraceState *ts = (LttvTraceState*)tfs->parent.t_context; |
| 1999 | LttvProcessState *process = ts->running_process[cpu]; |
| 2000 | |
| 2001 | if(process->current_function != funcptr){ |
| 2002 | g_info("Different functions (%lu.%09lu): ignore it\n", |
| 2003 | tfs->parent.timestamp.tv_sec, tfs->parent.timestamp.tv_nsec); |
| 2004 | g_info("process state has %llu when pop_function is %llu\n", |
| 2005 | process->current_function, funcptr); |
| 2006 | g_info("{ %u, %u, %s, %s, %s }\n", |
| 2007 | process->pid, |
| 2008 | process->ppid, |
| 2009 | g_quark_to_string(process->name), |
| 2010 | g_quark_to_string(process->brand), |
| 2011 | g_quark_to_string(process->state->s)); |
| 2012 | return; |
| 2013 | } |
| 2014 | guint depth = process->user_stack->len; |
| 2015 | |
| 2016 | if(depth == 0){ |
| 2017 | g_info("Trying to pop last function on stack (%lu.%09lu): ignore it\n", |
| 2018 | tfs->parent.timestamp.tv_sec, tfs->parent.timestamp.tv_nsec); |
| 2019 | return; |
| 2020 | } |
| 2021 | |
| 2022 | process->user_stack = |
| 2023 | g_array_set_size(process->user_stack, depth - 1); |
| 2024 | process->current_function = |
| 2025 | g_array_index(process->user_stack, guint64, depth - 2); |
| 2026 | } |
| 2027 | |
| 2028 | |
| 2029 | static gboolean function_entry(void *hook_data, void *call_data) |
| 2030 | { |
| 2031 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 2032 | LttEvent *e = ltt_tracefile_get_event(s->parent.tf); |
| 2033 | guint8 fac_id = ltt_event_facility_id(e); |
| 2034 | guint8 ev_id = ltt_event_eventtype_id(e); |
| 2035 | LttvTraceHookByFacility *thf = (LttvTraceHookByFacility *)hook_data; |
| 2036 | g_assert(thf->f1 != NULL); |
| 2037 | LttField *f = thf->f1; |
| 2038 | guint64 funcptr = ltt_event_get_long_unsigned(e, f); |
| 2039 | |
| 2040 | push_function(s, funcptr); |
| 2041 | return FALSE; |
| 2042 | } |
| 2043 | |
| 2044 | static gboolean function_exit(void *hook_data, void *call_data) |
| 2045 | { |
| 2046 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 2047 | LttEvent *e = ltt_tracefile_get_event(s->parent.tf); |
| 2048 | guint8 fac_id = ltt_event_facility_id(e); |
| 2049 | guint8 ev_id = ltt_event_eventtype_id(e); |
| 2050 | LttvTraceHookByFacility *thf = (LttvTraceHookByFacility *)hook_data; |
| 2051 | g_assert(thf->f1 != NULL); |
| 2052 | LttField *f = thf->f1; |
| 2053 | guint64 funcptr = ltt_event_get_long_unsigned(e, f); |
| 2054 | |
| 2055 | LttvExecutionSubmode submode; |
| 2056 | |
| 2057 | pop_function(s, funcptr); |
| 2058 | return FALSE; |
| 2059 | } |
| 2060 | |
| 2061 | static gboolean schedchange(void *hook_data, void *call_data) |
| 2062 | { |
| 2063 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 2064 | guint cpu = s->cpu; |
| 2065 | LttvTraceState *ts = (LttvTraceState*)s->parent.t_context; |
| 2066 | LttvProcessState *process = ts->running_process[cpu]; |
| 2067 | LttvProcessState *old_process = ts->running_process[cpu]; |
| 2068 | |
| 2069 | LttEvent *e = ltt_tracefile_get_event(s->parent.tf); |
| 2070 | LttvTraceHookByFacility *thf = (LttvTraceHookByFacility *)hook_data; |
| 2071 | guint pid_in, pid_out; |
| 2072 | gint state_out; |
| 2073 | |
| 2074 | pid_out = ltt_event_get_unsigned(e, thf->f1); |
| 2075 | pid_in = ltt_event_get_unsigned(e, thf->f2); |
| 2076 | state_out = ltt_event_get_int(e, thf->f3); |
| 2077 | |
| 2078 | if(likely(process != NULL)) { |
| 2079 | |
| 2080 | /* We could not know but it was not the idle process executing. |
| 2081 | This should only happen at the beginning, before the first schedule |
| 2082 | event, and when the initial information (current process for each CPU) |
| 2083 | is missing. It is not obvious how we could, after the fact, compensate |
| 2084 | the wrongly attributed statistics. */ |
| 2085 | |
| 2086 | //This test only makes sense once the state is known and if there is no |
| 2087 | //missing events. We need to silently ignore schedchange coming after a |
| 2088 | //process_free, or it causes glitches. (FIXME) |
| 2089 | //if(unlikely(process->pid != pid_out)) { |
| 2090 | // g_assert(process->pid == 0); |
| 2091 | //} |
| 2092 | if(process->pid == 0 && process->state->t == LTTV_STATE_MODE_UNKNOWN) { |
| 2093 | /* Scheduling out of pid 0 at beginning of the trace : |
| 2094 | * we know for sure it is in syscall mode at this point. */ |
| 2095 | g_assert(process->execution_stack->len == 1); |
| 2096 | process->state->t = LTTV_STATE_SYSCALL; |
| 2097 | } |
| 2098 | if(unlikely(process->state->s == LTTV_STATE_EXIT)) { |
| 2099 | process->state->s = LTTV_STATE_ZOMBIE; |
| 2100 | process->state->change = s->parent.timestamp; |
| 2101 | } else { |
| 2102 | if(unlikely(state_out == 0)) process->state->s = LTTV_STATE_WAIT_CPU; |
| 2103 | else process->state->s = LTTV_STATE_WAIT; |
| 2104 | process->state->change = s->parent.timestamp; |
| 2105 | } |
| 2106 | |
| 2107 | if(state_out == 32) |
| 2108 | exit_process(s, process); /* EXIT_DEAD */ |
| 2109 | /* see sched.h for states */ |
| 2110 | } |
| 2111 | process = ts->running_process[cpu] = |
| 2112 | lttv_state_find_process_or_create( |
| 2113 | (LttvTraceState*)s->parent.t_context, |
| 2114 | cpu, pid_in, |
| 2115 | &s->parent.timestamp); |
| 2116 | process->state->s = LTTV_STATE_RUN; |
| 2117 | process->cpu = cpu; |
| 2118 | if(process->usertrace) |
| 2119 | process->usertrace->cpu = cpu; |
| 2120 | // process->last_cpu_index = ltt_tracefile_num(((LttvTracefileContext*)s)->tf); |
| 2121 | process->state->change = s->parent.timestamp; |
| 2122 | return FALSE; |
| 2123 | } |
| 2124 | |
| 2125 | static gboolean process_fork(void *hook_data, void *call_data) |
| 2126 | { |
| 2127 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 2128 | LttEvent *e = ltt_tracefile_get_event(s->parent.tf); |
| 2129 | LttvTraceHookByFacility *thf = (LttvTraceHookByFacility *)hook_data; |
| 2130 | guint parent_pid; |
| 2131 | guint child_pid; /* In the Linux Kernel, there is one PID per thread. */ |
| 2132 | guint child_tgid; /* tgid in the Linux kernel is the "real" POSIX PID. */ |
| 2133 | LttvProcessState *zombie_process; |
| 2134 | guint cpu = s->cpu; |
| 2135 | LttvTraceState *ts = (LttvTraceState*)s->parent.t_context; |
| 2136 | LttvProcessState *process = ts->running_process[cpu]; |
| 2137 | LttvProcessState *child_process; |
| 2138 | |
| 2139 | /* Parent PID */ |
| 2140 | parent_pid = ltt_event_get_unsigned(e, thf->f1); |
| 2141 | |
| 2142 | /* Child PID */ |
| 2143 | child_pid = ltt_event_get_unsigned(e, thf->f2); |
| 2144 | s->parent.target_pid = child_pid; |
| 2145 | |
| 2146 | /* Child TGID */ |
| 2147 | if(thf->f3) child_tgid = ltt_event_get_unsigned(e, thf->f3); |
| 2148 | else child_tgid = 0; |
| 2149 | |
| 2150 | /* Mathieu : it seems like the process might have been scheduled in before the |
| 2151 | * fork, and, in a rare case, might be the current process. This might happen |
| 2152 | * in a SMP case where we don't have enough precision on the clocks. |
| 2153 | * |
| 2154 | * Test reenabled after precision fixes on time. (Mathieu) */ |
| 2155 | #if 0 |
| 2156 | zombie_process = lttv_state_find_process(ts, ANY_CPU, child_pid); |
| 2157 | |
| 2158 | if(unlikely(zombie_process != NULL)) { |
| 2159 | /* Reutilisation of PID. Only now we are sure that the old PID |
| 2160 | * has been released. FIXME : should know when release_task happens instead. |
| 2161 | */ |
| 2162 | guint num_cpus = ltt_trace_get_num_cpu(ts->parent.t); |
| 2163 | guint i; |
| 2164 | for(i=0; i< num_cpus; i++) { |
| 2165 | g_assert(zombie_process != ts->running_process[i]); |
| 2166 | } |
| 2167 | |
| 2168 | exit_process(s, zombie_process); |
| 2169 | } |
| 2170 | #endif //0 |
| 2171 | g_assert(process->pid != child_pid); |
| 2172 | // FIXME : Add this test in the "known state" section |
| 2173 | // g_assert(process->pid == parent_pid); |
| 2174 | child_process = lttv_state_find_process(ts, ANY_CPU, child_pid); |
| 2175 | if(child_process == NULL) { |
| 2176 | child_process = lttv_state_create_process(ts, process, cpu, |
| 2177 | child_pid, child_tgid, |
| 2178 | LTTV_STATE_UNNAMED, &s->parent.timestamp); |
| 2179 | } else { |
| 2180 | /* The process has already been created : due to time imprecision between |
| 2181 | * multiple CPUs : it has been scheduled in before creation. Note that we |
| 2182 | * shouldn't have this kind of imprecision. |
| 2183 | * |
| 2184 | * Simply put a correct parent. |
| 2185 | */ |
| 2186 | g_assert(0); /* This is a problematic case : the process has been created |
| 2187 | before the fork event */ |
| 2188 | child_process->ppid = process->pid; |
| 2189 | child_process->tgid = child_tgid; |
| 2190 | } |
| 2191 | g_assert(child_process->name == LTTV_STATE_UNNAMED); |
| 2192 | child_process->name = process->name; |
| 2193 | child_process->brand = process->brand; |
| 2194 | |
| 2195 | return FALSE; |
| 2196 | } |
| 2197 | |
| 2198 | /* We stamp a newly created process as kernel_thread */ |
| 2199 | static gboolean process_kernel_thread(void *hook_data, void *call_data) |
| 2200 | { |
| 2201 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 2202 | LttEvent *e = ltt_tracefile_get_event(s->parent.tf); |
| 2203 | LttvTraceHookByFacility *thf = (LttvTraceHookByFacility *)hook_data; |
| 2204 | guint pid; |
| 2205 | guint cpu = s->cpu; |
| 2206 | LttvTraceState *ts = (LttvTraceState*)s->parent.t_context; |
| 2207 | LttvProcessState *process; |
| 2208 | LttvExecutionState *es; |
| 2209 | |
| 2210 | /* PID */ |
| 2211 | pid = ltt_event_get_unsigned(e, thf->f1); |
| 2212 | s->parent.target_pid = pid; |
| 2213 | |
| 2214 | process = lttv_state_find_process(ts, ANY_CPU, pid); |
| 2215 | es = &g_array_index(process->execution_stack, LttvExecutionState, 0); |
| 2216 | es->t = LTTV_STATE_SYSCALL; |
| 2217 | process->type = LTTV_STATE_KERNEL_THREAD; |
| 2218 | |
| 2219 | return FALSE; |
| 2220 | } |
| 2221 | |
| 2222 | static gboolean process_exit(void *hook_data, void *call_data) |
| 2223 | { |
| 2224 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 2225 | LttEvent *e = ltt_tracefile_get_event(s->parent.tf); |
| 2226 | LttvTraceHookByFacility *thf = (LttvTraceHookByFacility *)hook_data; |
| 2227 | LttField *f; |
| 2228 | guint pid; |
| 2229 | guint cpu = s->cpu; |
| 2230 | LttvTraceState *ts = (LttvTraceState*)s->parent.t_context; |
| 2231 | LttvProcessState *process; // = ts->running_process[cpu]; |
| 2232 | |
| 2233 | pid = ltt_event_get_unsigned(e, thf->f1); |
| 2234 | s->parent.target_pid = pid; |
| 2235 | |
| 2236 | // FIXME : Add this test in the "known state" section |
| 2237 | // g_assert(process->pid == pid); |
| 2238 | |
| 2239 | process = lttv_state_find_process(ts, ANY_CPU, pid); |
| 2240 | if(likely(process != NULL)) { |
| 2241 | process->state->s = LTTV_STATE_EXIT; |
| 2242 | } |
| 2243 | return FALSE; |
| 2244 | } |
| 2245 | |
| 2246 | static gboolean process_free(void *hook_data, void *call_data) |
| 2247 | { |
| 2248 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 2249 | LttvTraceState *ts = (LttvTraceState*)s->parent.t_context; |
| 2250 | LttEvent *e = ltt_tracefile_get_event(s->parent.tf); |
| 2251 | LttvTraceHookByFacility *thf = (LttvTraceHookByFacility *)hook_data; |
| 2252 | guint release_pid; |
| 2253 | LttvProcessState *process; |
| 2254 | |
| 2255 | /* PID of the process to release */ |
| 2256 | release_pid = ltt_event_get_unsigned(e, thf->f1); |
| 2257 | s->parent.target_pid = release_pid; |
| 2258 | |
| 2259 | g_assert(release_pid != 0); |
| 2260 | |
| 2261 | process = lttv_state_find_process(ts, ANY_CPU, release_pid); |
| 2262 | |
| 2263 | if(likely(process != NULL)) { |
| 2264 | /* release_task is happening at kernel level : we can now safely release |
| 2265 | * the data structure of the process */ |
| 2266 | //This test is fun, though, as it may happen that |
| 2267 | //at time t : CPU 0 : process_free |
| 2268 | //at time t+150ns : CPU 1 : schedule out |
| 2269 | //Clearly due to time imprecision, we disable it. (Mathieu) |
| 2270 | //If this weird case happen, we have no choice but to put the |
| 2271 | //Currently running process on the cpu to 0. |
| 2272 | //I re-enable it following time precision fixes. (Mathieu) |
| 2273 | //Well, in the case where an process is freed by a process on another CPU |
| 2274 | //and still scheduled, it happens that this is the schedchange that will |
| 2275 | //drop the last reference count. Do not free it here! |
| 2276 | guint num_cpus = ltt_trace_get_num_cpu(ts->parent.t); |
| 2277 | guint i; |
| 2278 | for(i=0; i< num_cpus; i++) { |
| 2279 | //g_assert(process != ts->running_process[i]); |
| 2280 | if(process == ts->running_process[i]) { |
| 2281 | //ts->running_process[i] = lttv_state_find_process(ts, i, 0); |
| 2282 | break; |
| 2283 | } |
| 2284 | } |
| 2285 | if(i == num_cpus) /* process is not scheduled */ |
| 2286 | exit_process(s, process); |
| 2287 | } |
| 2288 | |
| 2289 | return FALSE; |
| 2290 | } |
| 2291 | |
| 2292 | |
| 2293 | static gboolean process_exec(void *hook_data, void *call_data) |
| 2294 | { |
| 2295 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 2296 | LttvTraceState *ts = (LttvTraceState*)s->parent.t_context; |
| 2297 | LttEvent *e = ltt_tracefile_get_event(s->parent.tf); |
| 2298 | LttvTraceHookByFacility *thf = (LttvTraceHookByFacility *)hook_data; |
| 2299 | //gchar *name; |
| 2300 | guint cpu = s->cpu; |
| 2301 | LttvProcessState *process = ts->running_process[cpu]; |
| 2302 | |
| 2303 | /* PID of the process to release */ |
| 2304 | guint64 name_len = ltt_event_field_element_number(e, thf->f1); |
| 2305 | //name = ltt_event_get_string(e, thf->f1); |
| 2306 | LttField *child = ltt_event_field_element_select(e, thf->f1, 0); |
| 2307 | gchar *name_begin = |
| 2308 | (gchar*)(ltt_event_data(e)+ltt_event_field_offset(e, child)); |
| 2309 | gchar *null_term_name = g_new(gchar, name_len+1); |
| 2310 | memcpy(null_term_name, name_begin, name_len); |
| 2311 | null_term_name[name_len] = '\0'; |
| 2312 | |
| 2313 | process->name = g_quark_from_string(null_term_name); |
| 2314 | process->brand = LTTV_STATE_UNBRANDED; |
| 2315 | g_free(null_term_name); |
| 2316 | return FALSE; |
| 2317 | } |
| 2318 | |
| 2319 | static gboolean thread_brand(void *hook_data, void *call_data) |
| 2320 | { |
| 2321 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 2322 | LttvTraceState *ts = (LttvTraceState*)s->parent.t_context; |
| 2323 | LttEvent *e = ltt_tracefile_get_event(s->parent.tf); |
| 2324 | LttvTraceHookByFacility *thf = (LttvTraceHookByFacility *)hook_data; |
| 2325 | gchar *name; |
| 2326 | guint cpu = s->cpu; |
| 2327 | LttvProcessState *process = ts->running_process[cpu]; |
| 2328 | |
| 2329 | name = ltt_event_get_string(e, thf->f1); |
| 2330 | process->brand = g_quark_from_string(name); |
| 2331 | |
| 2332 | return FALSE; |
| 2333 | } |
| 2334 | |
| 2335 | static gboolean enum_process_state(void *hook_data, void *call_data) |
| 2336 | { |
| 2337 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 2338 | LttEvent *e = ltt_tracefile_get_event(s->parent.tf); |
| 2339 | //It's slow : optimise later by doing this before reading trace. |
| 2340 | LttEventType *et = ltt_event_eventtype(e); |
| 2341 | // |
| 2342 | LttvTraceHookByFacility *thf = (LttvTraceHookByFacility *)hook_data; |
| 2343 | guint parent_pid; |
| 2344 | guint pid; |
| 2345 | guint tgid; |
| 2346 | gchar * command; |
| 2347 | guint cpu = s->cpu; |
| 2348 | LttvTraceState *ts = (LttvTraceState*)s->parent.t_context; |
| 2349 | LttvProcessState *process = ts->running_process[cpu]; |
| 2350 | LttvProcessState *parent_process; |
| 2351 | LttField *f4, *f5, *f6, *f7, *f8; |
| 2352 | GQuark type, mode, submode, status; |
| 2353 | LttvExecutionState *es; |
| 2354 | |
| 2355 | /* PID */ |
| 2356 | pid = ltt_event_get_unsigned(e, thf->f1); |
| 2357 | s->parent.target_pid = pid; |
| 2358 | |
| 2359 | /* Parent PID */ |
| 2360 | parent_pid = ltt_event_get_unsigned(e, thf->f2); |
| 2361 | |
| 2362 | /* Command name */ |
| 2363 | command = ltt_event_get_string(e, thf->f3); |
| 2364 | |
| 2365 | /* type */ |
| 2366 | f4 = ltt_eventtype_field_by_name(et, LTT_FIELD_TYPE); |
| 2367 | type = ltt_enum_string_get(ltt_field_type(f4), |
| 2368 | ltt_event_get_unsigned(e, f4)); |
| 2369 | |
| 2370 | /* mode */ |
| 2371 | f5 = ltt_eventtype_field_by_name(et, LTT_FIELD_MODE); |
| 2372 | mode = ltt_enum_string_get(ltt_field_type(f5), |
| 2373 | ltt_event_get_unsigned(e, f5)); |
| 2374 | |
| 2375 | /* submode */ |
| 2376 | f6 = ltt_eventtype_field_by_name(et, LTT_FIELD_SUBMODE); |
| 2377 | submode = ltt_enum_string_get(ltt_field_type(f6), |
| 2378 | ltt_event_get_unsigned(e, f6)); |
| 2379 | |
| 2380 | /* status */ |
| 2381 | f7 = ltt_eventtype_field_by_name(et, LTT_FIELD_STATUS); |
| 2382 | status = ltt_enum_string_get(ltt_field_type(f7), |
| 2383 | ltt_event_get_unsigned(e, f7)); |
| 2384 | |
| 2385 | /* TGID */ |
| 2386 | f8 = ltt_eventtype_field_by_name(et, LTT_FIELD_TGID); |
| 2387 | if(f8) tgid = ltt_event_get_unsigned(e, f8); |
| 2388 | else tgid = 0; |
| 2389 | |
| 2390 | /* The process might exist if a process was forked while performing the state |
| 2391 | * dump. */ |
| 2392 | process = lttv_state_find_process(ts, ANY_CPU, pid); |
| 2393 | if(process == NULL) { |
| 2394 | parent_process = lttv_state_find_process(ts, ANY_CPU, parent_pid); |
| 2395 | process = lttv_state_create_process(ts, parent_process, cpu, |
| 2396 | pid, tgid, g_quark_from_string(command), |
| 2397 | &s->parent.timestamp); |
| 2398 | |
| 2399 | /* Keep the stack bottom : a running user mode */ |
| 2400 | /* Disabled because of inconsistencies in the current statedump states. */ |
| 2401 | if(type == LTTV_STATE_KERNEL_THREAD) { |
| 2402 | /* Only keep the bottom */ |
| 2403 | process->execution_stack = g_array_set_size(process->execution_stack, 1); |
| 2404 | es = process->state = &g_array_index(process->execution_stack, |
| 2405 | LttvExecutionState, 0); |
| 2406 | es->t = LTTV_STATE_SYSCALL; |
| 2407 | es->s = status; |
| 2408 | es->n = submode; |
| 2409 | } else { |
| 2410 | /* On top of it : */ |
| 2411 | es = process->state = &g_array_index(process->execution_stack, |
| 2412 | LttvExecutionState, 1); |
| 2413 | es->t = LTTV_STATE_USER_MODE; |
| 2414 | es->s = status; |
| 2415 | es->n = submode; |
| 2416 | } |
| 2417 | #if 0 |
| 2418 | /* UNKNOWN STATE */ |
| 2419 | { |
| 2420 | es = process->state = &g_array_index(process->execution_stack, |
| 2421 | LttvExecutionState, 1); |
| 2422 | es->t = LTTV_STATE_MODE_UNKNOWN; |
| 2423 | es->s = LTTV_STATE_UNNAMED; |
| 2424 | es->n = LTTV_STATE_SUBMODE_UNKNOWN; |
| 2425 | } |
| 2426 | #endif //0 |
| 2427 | } else { |
| 2428 | /* The process has already been created : |
| 2429 | * Probably was forked while dumping the process state or |
| 2430 | * was simply scheduled in prior to get the state dump event. |
| 2431 | * We know for sure if it is a user space thread. |
| 2432 | */ |
| 2433 | process->ppid = parent_pid; |
| 2434 | process->tgid = tgid; |
| 2435 | process->name = g_quark_from_string(command); |
| 2436 | es = &g_array_index(process->execution_stack, LttvExecutionState, 0); |
| 2437 | if(type != LTTV_STATE_KERNEL_THREAD) |
| 2438 | es->t = LTTV_STATE_USER_MODE; |
| 2439 | /* Don't mess around with the stack, it will eventually become |
| 2440 | * ok after the end of state dump. */ |
| 2441 | } |
| 2442 | |
| 2443 | return FALSE; |
| 2444 | } |
| 2445 | |
| 2446 | gint lttv_state_hook_add_event_hooks(void *hook_data, void *call_data) |
| 2447 | { |
| 2448 | LttvTracesetState *tss = (LttvTracesetState*)(call_data); |
| 2449 | |
| 2450 | lttv_state_add_event_hooks(tss); |
| 2451 | |
| 2452 | return 0; |
| 2453 | } |
| 2454 | |
| 2455 | void lttv_state_add_event_hooks(LttvTracesetState *self) |
| 2456 | { |
| 2457 | LttvTraceset *traceset = self->parent.ts; |
| 2458 | |
| 2459 | guint i, j, k, l, nb_trace, nb_tracefile; |
| 2460 | |
| 2461 | LttvTraceState *ts; |
| 2462 | |
| 2463 | LttvTracefileState *tfs; |
| 2464 | |
| 2465 | GArray *hooks; |
| 2466 | |
| 2467 | LttvTraceHookByFacility *thf; |
| 2468 | |
| 2469 | LttvTraceHook *hook; |
| 2470 | |
| 2471 | LttvAttributeValue val; |
| 2472 | |
| 2473 | gint ret; |
| 2474 | gint hn; |
| 2475 | |
| 2476 | nb_trace = lttv_traceset_number(traceset); |
| 2477 | for(i = 0 ; i < nb_trace ; i++) { |
| 2478 | ts = (LttvTraceState *)self->parent.traces[i]; |
| 2479 | |
| 2480 | if(ts->has_precomputed_states) continue; |
| 2481 | |
| 2482 | /* Find the eventtype id for the following events and register the |
| 2483 | associated by id hooks. */ |
| 2484 | |
| 2485 | hooks = g_array_sized_new(FALSE, FALSE, sizeof(LttvTraceHook), 18); |
| 2486 | hooks = g_array_set_size(hooks, 18); // Max possible number of hooks. |
| 2487 | hn = 0; |
| 2488 | |
| 2489 | ret = lttv_trace_find_hook(ts->parent.t, |
| 2490 | LTT_FACILITY_KERNEL_ARCH, LTT_EVENT_SYSCALL_ENTRY, |
| 2491 | LTT_FIELD_SYSCALL_ID, 0, 0, |
| 2492 | syscall_entry, NULL, &g_array_index(hooks, LttvTraceHook, hn++)); |
| 2493 | if(ret) hn--; |
| 2494 | |
| 2495 | ret = lttv_trace_find_hook(ts->parent.t, |
| 2496 | LTT_FACILITY_KERNEL_ARCH, LTT_EVENT_SYSCALL_EXIT, |
| 2497 | 0, 0, 0, |
| 2498 | syscall_exit, NULL, &g_array_index(hooks, LttvTraceHook, hn++)); |
| 2499 | if(ret) hn--; |
| 2500 | |
| 2501 | ret = lttv_trace_find_hook(ts->parent.t, |
| 2502 | LTT_FACILITY_KERNEL, LTT_EVENT_TRAP_ENTRY, |
| 2503 | LTT_FIELD_TRAP_ID, 0, 0, |
| 2504 | trap_entry, NULL, &g_array_index(hooks, LttvTraceHook, hn++)); |
| 2505 | if(ret) hn--; |
| 2506 | |
| 2507 | ret = lttv_trace_find_hook(ts->parent.t, |
| 2508 | LTT_FACILITY_KERNEL, LTT_EVENT_TRAP_EXIT, |
| 2509 | 0, 0, 0, |
| 2510 | trap_exit, NULL, &g_array_index(hooks, LttvTraceHook, hn++)); |
| 2511 | if(ret) hn--; |
| 2512 | |
| 2513 | ret = lttv_trace_find_hook(ts->parent.t, |
| 2514 | LTT_FACILITY_KERNEL, LTT_EVENT_IRQ_ENTRY, |
| 2515 | LTT_FIELD_IRQ_ID, 0, 0, |
| 2516 | irq_entry, NULL, &g_array_index(hooks, LttvTraceHook, hn++)); |
| 2517 | if(ret) hn--; |
| 2518 | |
| 2519 | ret = lttv_trace_find_hook(ts->parent.t, |
| 2520 | LTT_FACILITY_KERNEL, LTT_EVENT_IRQ_EXIT, |
| 2521 | 0, 0, 0, |
| 2522 | irq_exit, NULL, &g_array_index(hooks, LttvTraceHook, hn++)); |
| 2523 | if(ret) hn--; |
| 2524 | |
| 2525 | ret = lttv_trace_find_hook(ts->parent.t, |
| 2526 | LTT_FACILITY_KERNEL, LTT_EVENT_SOFT_IRQ_ENTRY, |
| 2527 | LTT_FIELD_SOFT_IRQ_ID, 0, 0, |
| 2528 | soft_irq_entry, NULL, &g_array_index(hooks, LttvTraceHook, hn++)); |
| 2529 | if(ret) hn--; |
| 2530 | |
| 2531 | ret = lttv_trace_find_hook(ts->parent.t, |
| 2532 | LTT_FACILITY_KERNEL, LTT_EVENT_SOFT_IRQ_EXIT, |
| 2533 | 0, 0, 0, |
| 2534 | soft_irq_exit, NULL, &g_array_index(hooks, LttvTraceHook, hn++)); |
| 2535 | if(ret) hn--; |
| 2536 | |
| 2537 | ret = lttv_trace_find_hook(ts->parent.t, |
| 2538 | LTT_FACILITY_PROCESS, LTT_EVENT_SCHEDCHANGE, |
| 2539 | LTT_FIELD_OUT, LTT_FIELD_IN, LTT_FIELD_OUT_STATE, |
| 2540 | schedchange, NULL, &g_array_index(hooks, LttvTraceHook, hn++)); |
| 2541 | if(ret) hn--; |
| 2542 | |
| 2543 | ret = lttv_trace_find_hook(ts->parent.t, |
| 2544 | LTT_FACILITY_PROCESS, LTT_EVENT_FORK, |
| 2545 | LTT_FIELD_PARENT_PID, LTT_FIELD_CHILD_PID, LTT_FIELD_TGID, |
| 2546 | process_fork, NULL, &g_array_index(hooks, LttvTraceHook, hn++)); |
| 2547 | if(ret) hn--; |
| 2548 | |
| 2549 | ret = lttv_trace_find_hook(ts->parent.t, |
| 2550 | LTT_FACILITY_PROCESS, LTT_EVENT_KERNEL_THREAD, |
| 2551 | LTT_FIELD_PID, 0, 0, |
| 2552 | process_kernel_thread, NULL, &g_array_index(hooks, LttvTraceHook, |
| 2553 | hn++)); |
| 2554 | if(ret) hn--; |
| 2555 | |
| 2556 | ret = lttv_trace_find_hook(ts->parent.t, |
| 2557 | LTT_FACILITY_PROCESS, LTT_EVENT_EXIT, |
| 2558 | LTT_FIELD_PID, 0, 0, |
| 2559 | process_exit, NULL, &g_array_index(hooks, LttvTraceHook, hn++)); |
| 2560 | if(ret) hn--; |
| 2561 | |
| 2562 | ret = lttv_trace_find_hook(ts->parent.t, |
| 2563 | LTT_FACILITY_PROCESS, LTT_EVENT_FREE, |
| 2564 | LTT_FIELD_PID, 0, 0, |
| 2565 | process_free, NULL, &g_array_index(hooks, LttvTraceHook, hn++)); |
| 2566 | if(ret) hn--; |
| 2567 | |
| 2568 | ret = lttv_trace_find_hook(ts->parent.t, |
| 2569 | LTT_FACILITY_FS, LTT_EVENT_EXEC, |
| 2570 | LTT_FIELD_FILENAME, 0, 0, |
| 2571 | process_exec, NULL, &g_array_index(hooks, LttvTraceHook, hn++)); |
| 2572 | if(ret) hn--; |
| 2573 | |
| 2574 | ret = lttv_trace_find_hook(ts->parent.t, |
| 2575 | LTT_FACILITY_USER_GENERIC, LTT_EVENT_THREAD_BRAND, |
| 2576 | LTT_FIELD_NAME, 0, 0, |
| 2577 | thread_brand, NULL, &g_array_index(hooks, LttvTraceHook, hn++)); |
| 2578 | if(ret) hn--; |
| 2579 | |
| 2580 | /* statedump-related hooks */ |
| 2581 | ret = lttv_trace_find_hook(ts->parent.t, |
| 2582 | LTT_FACILITY_STATEDUMP, LTT_EVENT_ENUM_PROCESS_STATE, |
| 2583 | LTT_FIELD_PID, LTT_FIELD_PARENT_PID, LTT_FIELD_NAME, |
| 2584 | enum_process_state, NULL, &g_array_index(hooks, LttvTraceHook, hn++)); |
| 2585 | if(ret) hn--; |
| 2586 | |
| 2587 | ret = lttv_trace_find_hook(ts->parent.t, |
| 2588 | LTT_FACILITY_USER_GENERIC, LTT_EVENT_FUNCTION_ENTRY, |
| 2589 | LTT_FIELD_THIS_FN, LTT_FIELD_CALL_SITE, 0, |
| 2590 | function_entry, NULL, &g_array_index(hooks, LttvTraceHook, hn++)); |
| 2591 | if(ret) hn--; |
| 2592 | |
| 2593 | ret = lttv_trace_find_hook(ts->parent.t, |
| 2594 | LTT_FACILITY_USER_GENERIC, LTT_EVENT_FUNCTION_EXIT, |
| 2595 | LTT_FIELD_THIS_FN, LTT_FIELD_CALL_SITE, 0, |
| 2596 | function_exit, NULL, &g_array_index(hooks, LttvTraceHook, hn++)); |
| 2597 | if(ret) hn--; |
| 2598 | |
| 2599 | hooks = g_array_set_size(hooks, hn); |
| 2600 | |
| 2601 | /* Add these hooks to each event_by_id hooks list */ |
| 2602 | |
| 2603 | nb_tracefile = ts->parent.tracefiles->len; |
| 2604 | |
| 2605 | for(j = 0 ; j < nb_tracefile ; j++) { |
| 2606 | tfs = |
| 2607 | LTTV_TRACEFILE_STATE(g_array_index(ts->parent.tracefiles, |
| 2608 | LttvTracefileContext*, j)); |
| 2609 | |
| 2610 | for(k = 0 ; k < hooks->len ; k++) { |
| 2611 | hook = &g_array_index(hooks, LttvTraceHook, k); |
| 2612 | for(l=0;l<hook->fac_list->len;l++) { |
| 2613 | thf = g_array_index(hook->fac_list, LttvTraceHookByFacility*, l); |
| 2614 | lttv_hooks_add( |
| 2615 | lttv_hooks_by_id_find(tfs->parent.event_by_id, thf->id), |
| 2616 | thf->h, |
| 2617 | thf, |
| 2618 | LTTV_PRIO_STATE); |
| 2619 | } |
| 2620 | } |
| 2621 | } |
| 2622 | lttv_attribute_find(ts->parent.a, LTTV_STATE_HOOKS, LTTV_POINTER, &val); |
| 2623 | *(val.v_pointer) = hooks; |
| 2624 | } |
| 2625 | } |
| 2626 | |
| 2627 | gint lttv_state_hook_remove_event_hooks(void *hook_data, void *call_data) |
| 2628 | { |
| 2629 | LttvTracesetState *tss = (LttvTracesetState*)(call_data); |
| 2630 | |
| 2631 | lttv_state_remove_event_hooks(tss); |
| 2632 | |
| 2633 | return 0; |
| 2634 | } |
| 2635 | |
| 2636 | void lttv_state_remove_event_hooks(LttvTracesetState *self) |
| 2637 | { |
| 2638 | LttvTraceset *traceset = self->parent.ts; |
| 2639 | |
| 2640 | guint i, j, k, l, nb_trace, nb_tracefile; |
| 2641 | |
| 2642 | LttvTraceState *ts; |
| 2643 | |
| 2644 | LttvTracefileState *tfs; |
| 2645 | |
| 2646 | GArray *hooks; |
| 2647 | |
| 2648 | LttvTraceHook *hook; |
| 2649 | |
| 2650 | LttvTraceHookByFacility *thf; |
| 2651 | |
| 2652 | LttvAttributeValue val; |
| 2653 | |
| 2654 | nb_trace = lttv_traceset_number(traceset); |
| 2655 | for(i = 0 ; i < nb_trace ; i++) { |
| 2656 | ts = LTTV_TRACE_STATE(self->parent.traces[i]); |
| 2657 | |
| 2658 | if(ts->has_precomputed_states) continue; |
| 2659 | |
| 2660 | lttv_attribute_find(ts->parent.a, LTTV_STATE_HOOKS, LTTV_POINTER, &val); |
| 2661 | hooks = *(val.v_pointer); |
| 2662 | |
| 2663 | /* Remove these hooks from each event_by_id hooks list */ |
| 2664 | |
| 2665 | nb_tracefile = ts->parent.tracefiles->len; |
| 2666 | |
| 2667 | for(j = 0 ; j < nb_tracefile ; j++) { |
| 2668 | tfs = |
| 2669 | LTTV_TRACEFILE_STATE(g_array_index(ts->parent.tracefiles, |
| 2670 | LttvTracefileContext*, j)); |
| 2671 | |
| 2672 | for(k = 0 ; k < hooks->len ; k++) { |
| 2673 | hook = &g_array_index(hooks, LttvTraceHook, k); |
| 2674 | for(l=0;l<hook->fac_list->len;l++) { |
| 2675 | thf = g_array_index(hook->fac_list, LttvTraceHookByFacility*, l); |
| 2676 | |
| 2677 | lttv_hooks_remove_data( |
| 2678 | lttv_hooks_by_id_find(tfs->parent.event_by_id, thf->id), |
| 2679 | thf->h, |
| 2680 | thf); |
| 2681 | } |
| 2682 | } |
| 2683 | } |
| 2684 | for(k = 0 ; k < hooks->len ; k++) |
| 2685 | lttv_trace_hook_destroy(&g_array_index(hooks, LttvTraceHook, k)); |
| 2686 | g_array_free(hooks, TRUE); |
| 2687 | } |
| 2688 | } |
| 2689 | |
| 2690 | static gboolean state_save_event_hook(void *hook_data, void *call_data) |
| 2691 | { |
| 2692 | guint *event_count = (guint*)hook_data; |
| 2693 | |
| 2694 | /* Only save at LTTV_STATE_SAVE_INTERVAL */ |
| 2695 | if(likely((*event_count)++ < LTTV_STATE_SAVE_INTERVAL)) |
| 2696 | return FALSE; |
| 2697 | else |
| 2698 | *event_count = 0; |
| 2699 | |
| 2700 | LttvTracefileState *self = (LttvTracefileState *)call_data; |
| 2701 | |
| 2702 | LttvTracefileState *tfcs; |
| 2703 | |
| 2704 | LttvTraceState *tcs = (LttvTraceState *)(self->parent.t_context); |
| 2705 | |
| 2706 | LttEventPosition *ep; |
| 2707 | |
| 2708 | guint i; |
| 2709 | |
| 2710 | LttTracefile *tf; |
| 2711 | |
| 2712 | LttvAttribute *saved_states_tree, *saved_state_tree; |
| 2713 | |
| 2714 | LttvAttributeValue value; |
| 2715 | |
| 2716 | saved_states_tree = lttv_attribute_find_subdir(tcs->parent.t_a, |
| 2717 | LTTV_STATE_SAVED_STATES); |
| 2718 | saved_state_tree = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL); |
| 2719 | value = lttv_attribute_add(saved_states_tree, |
| 2720 | lttv_attribute_get_number(saved_states_tree), LTTV_GOBJECT); |
| 2721 | *(value.v_gobject) = (GObject *)saved_state_tree; |
| 2722 | value = lttv_attribute_add(saved_state_tree, LTTV_STATE_TIME, LTTV_TIME); |
| 2723 | *(value.v_time) = self->parent.timestamp; |
| 2724 | lttv_state_save(tcs, saved_state_tree); |
| 2725 | g_debug("Saving state at time %lu.%lu", self->parent.timestamp.tv_sec, |
| 2726 | self->parent.timestamp.tv_nsec); |
| 2727 | |
| 2728 | *(tcs->max_time_state_recomputed_in_seek) = self->parent.timestamp; |
| 2729 | |
| 2730 | return FALSE; |
| 2731 | } |
| 2732 | |
| 2733 | static gboolean state_save_after_trace_hook(void *hook_data, void *call_data) |
| 2734 | { |
| 2735 | LttvTraceState *tcs = (LttvTraceState *)(call_data); |
| 2736 | |
| 2737 | *(tcs->max_time_state_recomputed_in_seek) = tcs->parent.time_span.end_time; |
| 2738 | |
| 2739 | return FALSE; |
| 2740 | } |
| 2741 | |
| 2742 | guint lttv_state_current_cpu(LttvTracefileState *tfs) |
| 2743 | { |
| 2744 | return tfs->cpu; |
| 2745 | } |
| 2746 | |
| 2747 | |
| 2748 | |
| 2749 | #if 0 |
| 2750 | static gboolean block_start(void *hook_data, void *call_data) |
| 2751 | { |
| 2752 | LttvTracefileState *self = (LttvTracefileState *)call_data; |
| 2753 | |
| 2754 | LttvTracefileState *tfcs; |
| 2755 | |
| 2756 | LttvTraceState *tcs = (LttvTraceState *)(self->parent.t_context); |
| 2757 | |
| 2758 | LttEventPosition *ep; |
| 2759 | |
| 2760 | guint i, nb_block, nb_event, nb_tracefile; |
| 2761 | |
| 2762 | LttTracefile *tf; |
| 2763 | |
| 2764 | LttvAttribute *saved_states_tree, *saved_state_tree; |
| 2765 | |
| 2766 | LttvAttributeValue value; |
| 2767 | |
| 2768 | ep = ltt_event_position_new(); |
| 2769 | |
| 2770 | nb_tracefile = tcs->parent.tracefiles->len; |
| 2771 | |
| 2772 | /* Count the number of events added since the last block end in any |
| 2773 | tracefile. */ |
| 2774 | |
| 2775 | for(i = 0 ; i < nb_tracefile ; i++) { |
| 2776 | tfcs = |
| 2777 | LTTV_TRACEFILE_STATE(&g_array_index(tcs->parent.tracefiles, |
| 2778 | LttvTracefileContext, i)); |
| 2779 | ltt_event_position(tfcs->parent.e, ep); |
| 2780 | ltt_event_position_get(ep, &nb_block, &nb_event, &tf); |
| 2781 | tcs->nb_event += nb_event - tfcs->saved_position; |
| 2782 | tfcs->saved_position = nb_event; |
| 2783 | } |
| 2784 | g_free(ep); |
| 2785 | |
| 2786 | if(tcs->nb_event >= tcs->save_interval) { |
| 2787 | saved_states_tree = lttv_attribute_find_subdir(tcs->parent.t_a, |
| 2788 | LTTV_STATE_SAVED_STATES); |
| 2789 | saved_state_tree = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL); |
| 2790 | value = lttv_attribute_add(saved_states_tree, |
| 2791 | lttv_attribute_get_number(saved_states_tree), LTTV_GOBJECT); |
| 2792 | *(value.v_gobject) = (GObject *)saved_state_tree; |
| 2793 | value = lttv_attribute_add(saved_state_tree, LTTV_STATE_TIME, LTTV_TIME); |
| 2794 | *(value.v_time) = self->parent.timestamp; |
| 2795 | lttv_state_save(tcs, saved_state_tree); |
| 2796 | tcs->nb_event = 0; |
| 2797 | g_debug("Saving state at time %lu.%lu", self->parent.timestamp.tv_sec, |
| 2798 | self->parent.timestamp.tv_nsec); |
| 2799 | } |
| 2800 | *(tcs->max_time_state_recomputed_in_seek) = self->parent.timestamp; |
| 2801 | return FALSE; |
| 2802 | } |
| 2803 | #endif //0 |
| 2804 | |
| 2805 | #if 0 |
| 2806 | static gboolean block_end(void *hook_data, void *call_data) |
| 2807 | { |
| 2808 | LttvTracefileState *self = (LttvTracefileState *)call_data; |
| 2809 | |
| 2810 | LttvTraceState *tcs = (LttvTraceState *)(self->parent.t_context); |
| 2811 | |
| 2812 | LttTracefile *tf; |
| 2813 | |
| 2814 | LttEventPosition *ep; |
| 2815 | |
| 2816 | guint nb_block, nb_event; |
| 2817 | |
| 2818 | ep = ltt_event_position_new(); |
| 2819 | ltt_event_position(self->parent.e, ep); |
| 2820 | ltt_event_position_get(ep, &nb_block, &nb_event, &tf); |
| 2821 | tcs->nb_event += nb_event - self->saved_position + 1; |
| 2822 | self->saved_position = 0; |
| 2823 | *(tcs->max_time_state_recomputed_in_seek) = self->parent.timestamp; |
| 2824 | g_free(ep); |
| 2825 | |
| 2826 | return FALSE; |
| 2827 | } |
| 2828 | #endif //0 |
| 2829 | #if 0 |
| 2830 | void lttv_state_save_add_event_hooks(LttvTracesetState *self) |
| 2831 | { |
| 2832 | LttvTraceset *traceset = self->parent.ts; |
| 2833 | |
| 2834 | guint i, j, nb_trace, nb_tracefile; |
| 2835 | |
| 2836 | LttvTraceState *ts; |
| 2837 | |
| 2838 | LttvTracefileState *tfs; |
| 2839 | |
| 2840 | LttvTraceHook hook_start, hook_end; |
| 2841 | |
| 2842 | nb_trace = lttv_traceset_number(traceset); |
| 2843 | for(i = 0 ; i < nb_trace ; i++) { |
| 2844 | ts = (LttvTraceState *)self->parent.traces[i]; |
| 2845 | |
| 2846 | lttv_trace_find_hook(ts->parent.t, "core","block_start",NULL, |
| 2847 | NULL, NULL, block_start, &hook_start); |
| 2848 | lttv_trace_find_hook(ts->parent.t, "core","block_end",NULL, |
| 2849 | NULL, NULL, block_end, &hook_end); |
| 2850 | |
| 2851 | nb_tracefile = ts->parent.tracefiles->len; |
| 2852 | |
| 2853 | for(j = 0 ; j < nb_tracefile ; j++) { |
| 2854 | tfs = |
| 2855 | LTTV_TRACEFILE_STATE(&g_array_index(ts->parent.tracefiles, |
| 2856 | LttvTracefileContext, j)); |
| 2857 | lttv_hooks_add(lttv_hooks_by_id_find(tfs->parent.event_by_id, |
| 2858 | hook_start.id), hook_start.h, NULL, LTTV_PRIO_STATE); |
| 2859 | lttv_hooks_add(lttv_hooks_by_id_find(tfs->parent.event_by_id, |
| 2860 | hook_end.id), hook_end.h, NULL, LTTV_PRIO_STATE); |
| 2861 | } |
| 2862 | } |
| 2863 | } |
| 2864 | #endif //0 |
| 2865 | |
| 2866 | void lttv_state_save_add_event_hooks(LttvTracesetState *self) |
| 2867 | { |
| 2868 | LttvTraceset *traceset = self->parent.ts; |
| 2869 | |
| 2870 | guint i, j, nb_trace, nb_tracefile; |
| 2871 | |
| 2872 | LttvTraceState *ts; |
| 2873 | |
| 2874 | LttvTracefileState *tfs; |
| 2875 | |
| 2876 | |
| 2877 | nb_trace = lttv_traceset_number(traceset); |
| 2878 | for(i = 0 ; i < nb_trace ; i++) { |
| 2879 | |
| 2880 | ts = (LttvTraceState *)self->parent.traces[i]; |
| 2881 | nb_tracefile = ts->parent.tracefiles->len; |
| 2882 | |
| 2883 | guint *event_count = g_new(guint, 1); |
| 2884 | *event_count = 0; |
| 2885 | |
| 2886 | for(j = 0 ; j < nb_tracefile ; j++) { |
| 2887 | tfs = |
| 2888 | LTTV_TRACEFILE_STATE(g_array_index(ts->parent.tracefiles, |
| 2889 | LttvTracefileContext*, j)); |
| 2890 | lttv_hooks_add(tfs->parent.event, |
| 2891 | state_save_event_hook, |
| 2892 | event_count, |
| 2893 | LTTV_PRIO_STATE); |
| 2894 | |
| 2895 | } |
| 2896 | } |
| 2897 | |
| 2898 | lttv_process_traceset_begin(&self->parent, |
| 2899 | NULL, NULL, NULL, NULL, NULL); |
| 2900 | |
| 2901 | } |
| 2902 | |
| 2903 | gint lttv_state_save_hook_add_event_hooks(void *hook_data, void *call_data) |
| 2904 | { |
| 2905 | LttvTracesetState *tss = (LttvTracesetState*)(call_data); |
| 2906 | |
| 2907 | lttv_state_save_add_event_hooks(tss); |
| 2908 | |
| 2909 | return 0; |
| 2910 | } |
| 2911 | |
| 2912 | |
| 2913 | #if 0 |
| 2914 | void lttv_state_save_remove_event_hooks(LttvTracesetState *self) |
| 2915 | { |
| 2916 | LttvTraceset *traceset = self->parent.ts; |
| 2917 | |
| 2918 | guint i, j, nb_trace, nb_tracefile; |
| 2919 | |
| 2920 | LttvTraceState *ts; |
| 2921 | |
| 2922 | LttvTracefileState *tfs; |
| 2923 | |
| 2924 | LttvTraceHook hook_start, hook_end; |
| 2925 | |
| 2926 | nb_trace = lttv_traceset_number(traceset); |
| 2927 | for(i = 0 ; i < nb_trace ; i++) { |
| 2928 | ts = LTTV_TRACE_STATE(self->parent.traces[i]); |
| 2929 | |
| 2930 | lttv_trace_find_hook(ts->parent.t, "core","block_start",NULL, |
| 2931 | NULL, NULL, block_start, &hook_start); |
| 2932 | |
| 2933 | lttv_trace_find_hook(ts->parent.t, "core","block_end",NULL, |
| 2934 | NULL, NULL, block_end, &hook_end); |
| 2935 | |
| 2936 | nb_tracefile = ts->parent.tracefiles->len; |
| 2937 | |
| 2938 | for(j = 0 ; j < nb_tracefile ; j++) { |
| 2939 | tfs = |
| 2940 | LTTV_TRACEFILE_STATE(&g_array_index(ts->parent.tracefiles, |
| 2941 | LttvTracefileContext, j)); |
| 2942 | lttv_hooks_remove_data(lttv_hooks_by_id_find( |
| 2943 | tfs->parent.event_by_id, hook_start.id), hook_start.h, NULL); |
| 2944 | lttv_hooks_remove_data(lttv_hooks_by_id_find( |
| 2945 | tfs->parent.event_by_id, hook_end.id), hook_end.h, NULL); |
| 2946 | } |
| 2947 | } |
| 2948 | } |
| 2949 | #endif //0 |
| 2950 | |
| 2951 | void lttv_state_save_remove_event_hooks(LttvTracesetState *self) |
| 2952 | { |
| 2953 | LttvTraceset *traceset = self->parent.ts; |
| 2954 | |
| 2955 | guint i, j, nb_trace, nb_tracefile; |
| 2956 | |
| 2957 | LttvTraceState *ts; |
| 2958 | |
| 2959 | LttvTracefileState *tfs; |
| 2960 | |
| 2961 | LttvHooks *after_trace = lttv_hooks_new(); |
| 2962 | |
| 2963 | lttv_hooks_add(after_trace, |
| 2964 | state_save_after_trace_hook, |
| 2965 | NULL, |
| 2966 | LTTV_PRIO_STATE); |
| 2967 | |
| 2968 | |
| 2969 | lttv_process_traceset_end(&self->parent, |
| 2970 | NULL, after_trace, NULL, NULL, NULL); |
| 2971 | |
| 2972 | lttv_hooks_destroy(after_trace); |
| 2973 | |
| 2974 | nb_trace = lttv_traceset_number(traceset); |
| 2975 | for(i = 0 ; i < nb_trace ; i++) { |
| 2976 | |
| 2977 | ts = (LttvTraceState *)self->parent.traces[i]; |
| 2978 | nb_tracefile = ts->parent.tracefiles->len; |
| 2979 | |
| 2980 | guint *event_count = NULL; |
| 2981 | |
| 2982 | for(j = 0 ; j < nb_tracefile ; j++) { |
| 2983 | tfs = |
| 2984 | LTTV_TRACEFILE_STATE(g_array_index(ts->parent.tracefiles, |
| 2985 | LttvTracefileContext*, j)); |
| 2986 | event_count = lttv_hooks_remove(tfs->parent.event, |
| 2987 | state_save_event_hook); |
| 2988 | } |
| 2989 | if(event_count) g_free(event_count); |
| 2990 | } |
| 2991 | } |
| 2992 | |
| 2993 | gint lttv_state_save_hook_remove_event_hooks(void *hook_data, void *call_data) |
| 2994 | { |
| 2995 | LttvTracesetState *tss = (LttvTracesetState*)(call_data); |
| 2996 | |
| 2997 | lttv_state_save_remove_event_hooks(tss); |
| 2998 | |
| 2999 | return 0; |
| 3000 | } |
| 3001 | |
| 3002 | void lttv_state_traceset_seek_time_closest(LttvTracesetState *self, LttTime t) |
| 3003 | { |
| 3004 | LttvTraceset *traceset = self->parent.ts; |
| 3005 | |
| 3006 | guint i, nb_trace; |
| 3007 | |
| 3008 | int min_pos, mid_pos, max_pos; |
| 3009 | |
| 3010 | guint call_rest = 0; |
| 3011 | |
| 3012 | LttvTraceState *tcs; |
| 3013 | |
| 3014 | LttvAttributeValue value; |
| 3015 | |
| 3016 | LttvAttributeType type; |
| 3017 | |
| 3018 | LttvAttributeName name; |
| 3019 | |
| 3020 | gboolean is_named; |
| 3021 | |
| 3022 | LttvAttribute *saved_states_tree, *saved_state_tree, *closest_tree; |
| 3023 | |
| 3024 | //g_tree_destroy(self->parent.pqueue); |
| 3025 | //self->parent.pqueue = g_tree_new(compare_tracefile); |
| 3026 | |
| 3027 | g_info("Entering seek_time_closest for time %lu.%lu", t.tv_sec, t.tv_nsec); |
| 3028 | |
| 3029 | nb_trace = lttv_traceset_number(traceset); |
| 3030 | for(i = 0 ; i < nb_trace ; i++) { |
| 3031 | tcs = (LttvTraceState *)self->parent.traces[i]; |
| 3032 | |
| 3033 | if(ltt_time_compare(t, *(tcs->max_time_state_recomputed_in_seek)) < 0) { |
| 3034 | saved_states_tree = lttv_attribute_find_subdir(tcs->parent.t_a, |
| 3035 | LTTV_STATE_SAVED_STATES); |
| 3036 | min_pos = -1; |
| 3037 | |
| 3038 | if(saved_states_tree) { |
| 3039 | max_pos = lttv_attribute_get_number(saved_states_tree) - 1; |
| 3040 | mid_pos = max_pos / 2; |
| 3041 | while(min_pos < max_pos) { |
| 3042 | type = lttv_attribute_get(saved_states_tree, mid_pos, &name, &value, |
| 3043 | &is_named); |
| 3044 | g_assert(type == LTTV_GOBJECT); |
| 3045 | saved_state_tree = *((LttvAttribute **)(value.v_gobject)); |
| 3046 | type = lttv_attribute_get_by_name(saved_state_tree, LTTV_STATE_TIME, |
| 3047 | &value); |
| 3048 | g_assert(type == LTTV_TIME); |
| 3049 | if(ltt_time_compare(*(value.v_time), t) < 0) { |
| 3050 | min_pos = mid_pos; |
| 3051 | closest_tree = saved_state_tree; |
| 3052 | } |
| 3053 | else max_pos = mid_pos - 1; |
| 3054 | |
| 3055 | mid_pos = (min_pos + max_pos + 1) / 2; |
| 3056 | } |
| 3057 | } |
| 3058 | |
| 3059 | /* restore the closest earlier saved state */ |
| 3060 | if(min_pos != -1) { |
| 3061 | lttv_state_restore(tcs, closest_tree); |
| 3062 | call_rest = 1; |
| 3063 | } |
| 3064 | |
| 3065 | /* There is no saved state, yet we want to have it. Restart at T0 */ |
| 3066 | else { |
| 3067 | restore_init_state(tcs); |
| 3068 | lttv_process_trace_seek_time(&(tcs->parent), ltt_time_zero); |
| 3069 | } |
| 3070 | } |
| 3071 | /* We want to seek quickly without restoring/updating the state */ |
| 3072 | else { |
| 3073 | restore_init_state(tcs); |
| 3074 | lttv_process_trace_seek_time(&(tcs->parent), t); |
| 3075 | } |
| 3076 | } |
| 3077 | if(!call_rest) g_info("NOT Calling restore"); |
| 3078 | } |
| 3079 | |
| 3080 | |
| 3081 | static void |
| 3082 | traceset_state_instance_init (GTypeInstance *instance, gpointer g_class) |
| 3083 | { |
| 3084 | } |
| 3085 | |
| 3086 | |
| 3087 | static void |
| 3088 | traceset_state_finalize (LttvTracesetState *self) |
| 3089 | { |
| 3090 | G_OBJECT_CLASS(g_type_class_peek(LTTV_TRACESET_CONTEXT_TYPE))-> |
| 3091 | finalize(G_OBJECT(self)); |
| 3092 | } |
| 3093 | |
| 3094 | |
| 3095 | static void |
| 3096 | traceset_state_class_init (LttvTracesetContextClass *klass) |
| 3097 | { |
| 3098 | GObjectClass *gobject_class = G_OBJECT_CLASS(klass); |
| 3099 | |
| 3100 | gobject_class->finalize = (void (*)(GObject *self)) traceset_state_finalize; |
| 3101 | klass->init = (void (*)(LttvTracesetContext *self, LttvTraceset *ts))init; |
| 3102 | klass->fini = (void (*)(LttvTracesetContext *self))fini; |
| 3103 | klass->new_traceset_context = new_traceset_context; |
| 3104 | klass->new_trace_context = new_trace_context; |
| 3105 | klass->new_tracefile_context = new_tracefile_context; |
| 3106 | } |
| 3107 | |
| 3108 | |
| 3109 | GType |
| 3110 | lttv_traceset_state_get_type(void) |
| 3111 | { |
| 3112 | static GType type = 0; |
| 3113 | if (type == 0) { |
| 3114 | static const GTypeInfo info = { |
| 3115 | sizeof (LttvTracesetStateClass), |
| 3116 | NULL, /* base_init */ |
| 3117 | NULL, /* base_finalize */ |
| 3118 | (GClassInitFunc) traceset_state_class_init, /* class_init */ |
| 3119 | NULL, /* class_finalize */ |
| 3120 | NULL, /* class_data */ |
| 3121 | sizeof (LttvTracesetState), |
| 3122 | 0, /* n_preallocs */ |
| 3123 | (GInstanceInitFunc) traceset_state_instance_init, /* instance_init */ |
| 3124 | NULL /* value handling */ |
| 3125 | }; |
| 3126 | |
| 3127 | type = g_type_register_static (LTTV_TRACESET_CONTEXT_TYPE, "LttvTracesetStateType", |
| 3128 | &info, 0); |
| 3129 | } |
| 3130 | return type; |
| 3131 | } |
| 3132 | |
| 3133 | |
| 3134 | static void |
| 3135 | trace_state_instance_init (GTypeInstance *instance, gpointer g_class) |
| 3136 | { |
| 3137 | } |
| 3138 | |
| 3139 | |
| 3140 | static void |
| 3141 | trace_state_finalize (LttvTraceState *self) |
| 3142 | { |
| 3143 | G_OBJECT_CLASS(g_type_class_peek(LTTV_TRACE_CONTEXT_TYPE))-> |
| 3144 | finalize(G_OBJECT(self)); |
| 3145 | } |
| 3146 | |
| 3147 | |
| 3148 | static void |
| 3149 | trace_state_class_init (LttvTraceStateClass *klass) |
| 3150 | { |
| 3151 | GObjectClass *gobject_class = G_OBJECT_CLASS(klass); |
| 3152 | |
| 3153 | gobject_class->finalize = (void (*)(GObject *self)) trace_state_finalize; |
| 3154 | klass->state_save = state_save; |
| 3155 | klass->state_restore = state_restore; |
| 3156 | klass->state_saved_free = state_saved_free; |
| 3157 | } |
| 3158 | |
| 3159 | |
| 3160 | GType |
| 3161 | lttv_trace_state_get_type(void) |
| 3162 | { |
| 3163 | static GType type = 0; |
| 3164 | if (type == 0) { |
| 3165 | static const GTypeInfo info = { |
| 3166 | sizeof (LttvTraceStateClass), |
| 3167 | NULL, /* base_init */ |
| 3168 | NULL, /* base_finalize */ |
| 3169 | (GClassInitFunc) trace_state_class_init, /* class_init */ |
| 3170 | NULL, /* class_finalize */ |
| 3171 | NULL, /* class_data */ |
| 3172 | sizeof (LttvTraceState), |
| 3173 | 0, /* n_preallocs */ |
| 3174 | (GInstanceInitFunc) trace_state_instance_init, /* instance_init */ |
| 3175 | NULL /* value handling */ |
| 3176 | }; |
| 3177 | |
| 3178 | type = g_type_register_static (LTTV_TRACE_CONTEXT_TYPE, |
| 3179 | "LttvTraceStateType", &info, 0); |
| 3180 | } |
| 3181 | return type; |
| 3182 | } |
| 3183 | |
| 3184 | |
| 3185 | static void |
| 3186 | tracefile_state_instance_init (GTypeInstance *instance, gpointer g_class) |
| 3187 | { |
| 3188 | } |
| 3189 | |
| 3190 | |
| 3191 | static void |
| 3192 | tracefile_state_finalize (LttvTracefileState *self) |
| 3193 | { |
| 3194 | G_OBJECT_CLASS(g_type_class_peek(LTTV_TRACEFILE_CONTEXT_TYPE))-> |
| 3195 | finalize(G_OBJECT(self)); |
| 3196 | } |
| 3197 | |
| 3198 | |
| 3199 | static void |
| 3200 | tracefile_state_class_init (LttvTracefileStateClass *klass) |
| 3201 | { |
| 3202 | GObjectClass *gobject_class = G_OBJECT_CLASS(klass); |
| 3203 | |
| 3204 | gobject_class->finalize = (void (*)(GObject *self)) tracefile_state_finalize; |
| 3205 | } |
| 3206 | |
| 3207 | |
| 3208 | GType |
| 3209 | lttv_tracefile_state_get_type(void) |
| 3210 | { |
| 3211 | static GType type = 0; |
| 3212 | if (type == 0) { |
| 3213 | static const GTypeInfo info = { |
| 3214 | sizeof (LttvTracefileStateClass), |
| 3215 | NULL, /* base_init */ |
| 3216 | NULL, /* base_finalize */ |
| 3217 | (GClassInitFunc) tracefile_state_class_init, /* class_init */ |
| 3218 | NULL, /* class_finalize */ |
| 3219 | NULL, /* class_data */ |
| 3220 | sizeof (LttvTracefileState), |
| 3221 | 0, /* n_preallocs */ |
| 3222 | (GInstanceInitFunc) tracefile_state_instance_init, /* instance_init */ |
| 3223 | NULL /* value handling */ |
| 3224 | }; |
| 3225 | |
| 3226 | type = g_type_register_static (LTTV_TRACEFILE_CONTEXT_TYPE, |
| 3227 | "LttvTracefileStateType", &info, 0); |
| 3228 | } |
| 3229 | return type; |
| 3230 | } |
| 3231 | |
| 3232 | |
| 3233 | static void module_init() |
| 3234 | { |
| 3235 | LTTV_STATE_UNNAMED = g_quark_from_string("UNNAMED"); |
| 3236 | LTTV_STATE_UNBRANDED = g_quark_from_string("UNBRANDED"); |
| 3237 | LTTV_STATE_MODE_UNKNOWN = g_quark_from_string("MODE_UNKNOWN"); |
| 3238 | LTTV_STATE_USER_MODE = g_quark_from_string("USER_MODE"); |
| 3239 | LTTV_STATE_SYSCALL = g_quark_from_string("SYSCALL"); |
| 3240 | LTTV_STATE_TRAP = g_quark_from_string("TRAP"); |
| 3241 | LTTV_STATE_IRQ = g_quark_from_string("IRQ"); |
| 3242 | LTTV_STATE_SOFT_IRQ = g_quark_from_string("SOFTIRQ"); |
| 3243 | LTTV_STATE_SUBMODE_UNKNOWN = g_quark_from_string("UNKNOWN"); |
| 3244 | LTTV_STATE_SUBMODE_NONE = g_quark_from_string("NONE"); |
| 3245 | LTTV_STATE_WAIT_FORK = g_quark_from_string("WAIT_FORK"); |
| 3246 | LTTV_STATE_WAIT_CPU = g_quark_from_string("WAIT_CPU"); |
| 3247 | LTTV_STATE_EXIT = g_quark_from_string("EXIT"); |
| 3248 | LTTV_STATE_ZOMBIE = g_quark_from_string("ZOMBIE"); |
| 3249 | LTTV_STATE_WAIT = g_quark_from_string("WAIT"); |
| 3250 | LTTV_STATE_RUN = g_quark_from_string("RUN"); |
| 3251 | LTTV_STATE_DEAD = g_quark_from_string("DEAD"); |
| 3252 | LTTV_STATE_USER_THREAD = g_quark_from_string("USER_THREAD"); |
| 3253 | LTTV_STATE_KERNEL_THREAD = g_quark_from_string("KERNEL_THREAD"); |
| 3254 | LTTV_STATE_TRACEFILES = g_quark_from_string("tracefiles"); |
| 3255 | LTTV_STATE_PROCESSES = g_quark_from_string("processes"); |
| 3256 | LTTV_STATE_PROCESS = g_quark_from_string("process"); |
| 3257 | LTTV_STATE_RUNNING_PROCESS = g_quark_from_string("running_process"); |
| 3258 | LTTV_STATE_EVENT = g_quark_from_string("event"); |
| 3259 | LTTV_STATE_SAVED_STATES = g_quark_from_string("saved states"); |
| 3260 | LTTV_STATE_SAVED_STATES_TIME = g_quark_from_string("saved states time"); |
| 3261 | LTTV_STATE_TIME = g_quark_from_string("time"); |
| 3262 | LTTV_STATE_HOOKS = g_quark_from_string("saved state hooks"); |
| 3263 | LTTV_STATE_NAME_TABLES = g_quark_from_string("name tables"); |
| 3264 | LTTV_STATE_TRACE_STATE_USE_COUNT = |
| 3265 | g_quark_from_string("trace_state_use_count"); |
| 3266 | |
| 3267 | |
| 3268 | LTT_FACILITY_KERNEL = g_quark_from_string("kernel"); |
| 3269 | LTT_FACILITY_KERNEL_ARCH = g_quark_from_string("kernel_arch"); |
| 3270 | LTT_FACILITY_PROCESS = g_quark_from_string("process"); |
| 3271 | LTT_FACILITY_FS = g_quark_from_string("fs"); |
| 3272 | LTT_FACILITY_STATEDUMP = g_quark_from_string("statedump"); |
| 3273 | LTT_FACILITY_USER_GENERIC = g_quark_from_string("user_generic"); |
| 3274 | |
| 3275 | |
| 3276 | LTT_EVENT_SYSCALL_ENTRY = g_quark_from_string("syscall_entry"); |
| 3277 | LTT_EVENT_SYSCALL_EXIT = g_quark_from_string("syscall_exit"); |
| 3278 | LTT_EVENT_TRAP_ENTRY = g_quark_from_string("trap_entry"); |
| 3279 | LTT_EVENT_TRAP_EXIT = g_quark_from_string("trap_exit"); |
| 3280 | LTT_EVENT_IRQ_ENTRY = g_quark_from_string("irq_entry"); |
| 3281 | LTT_EVENT_IRQ_EXIT = g_quark_from_string("irq_exit"); |
| 3282 | LTT_EVENT_SOFT_IRQ_ENTRY = g_quark_from_string("soft_irq_entry"); |
| 3283 | LTT_EVENT_SOFT_IRQ_EXIT = g_quark_from_string("soft_irq_exit"); |
| 3284 | LTT_EVENT_SCHEDCHANGE = g_quark_from_string("schedchange"); |
| 3285 | LTT_EVENT_FORK = g_quark_from_string("fork"); |
| 3286 | LTT_EVENT_KERNEL_THREAD = g_quark_from_string("kernel_thread"); |
| 3287 | LTT_EVENT_EXIT = g_quark_from_string("exit"); |
| 3288 | LTT_EVENT_FREE = g_quark_from_string("free"); |
| 3289 | LTT_EVENT_EXEC = g_quark_from_string("exec"); |
| 3290 | LTT_EVENT_ENUM_PROCESS_STATE = g_quark_from_string("enumerate_process_state"); |
| 3291 | LTT_EVENT_FUNCTION_ENTRY = g_quark_from_string("function_entry"); |
| 3292 | LTT_EVENT_FUNCTION_EXIT = g_quark_from_string("function_exit"); |
| 3293 | LTT_EVENT_THREAD_BRAND = g_quark_from_string("thread_brand"); |
| 3294 | |
| 3295 | |
| 3296 | LTT_FIELD_SYSCALL_ID = g_quark_from_string("syscall_id"); |
| 3297 | LTT_FIELD_TRAP_ID = g_quark_from_string("trap_id"); |
| 3298 | LTT_FIELD_IRQ_ID = g_quark_from_string("irq_id"); |
| 3299 | LTT_FIELD_SOFT_IRQ_ID = g_quark_from_string("softirq_id"); |
| 3300 | LTT_FIELD_OUT = g_quark_from_string("out"); |
| 3301 | LTT_FIELD_IN = g_quark_from_string("in"); |
| 3302 | LTT_FIELD_OUT_STATE = g_quark_from_string("out_state"); |
| 3303 | LTT_FIELD_PARENT_PID = g_quark_from_string("parent_pid"); |
| 3304 | LTT_FIELD_CHILD_PID = g_quark_from_string("child_pid"); |
| 3305 | LTT_FIELD_PID = g_quark_from_string("pid"); |
| 3306 | LTT_FIELD_TGID = g_quark_from_string("tgid"); |
| 3307 | LTT_FIELD_FILENAME = g_quark_from_string("filename"); |
| 3308 | LTT_FIELD_NAME = g_quark_from_string("name"); |
| 3309 | LTT_FIELD_TYPE = g_quark_from_string("type"); |
| 3310 | LTT_FIELD_MODE = g_quark_from_string("mode"); |
| 3311 | LTT_FIELD_SUBMODE = g_quark_from_string("submode"); |
| 3312 | LTT_FIELD_STATUS = g_quark_from_string("status"); |
| 3313 | LTT_FIELD_THIS_FN = g_quark_from_string("this_fn"); |
| 3314 | LTT_FIELD_CALL_SITE = g_quark_from_string("call_site"); |
| 3315 | |
| 3316 | } |
| 3317 | |
| 3318 | static void module_destroy() |
| 3319 | { |
| 3320 | } |
| 3321 | |
| 3322 | |
| 3323 | LTTV_MODULE("state", "State computation", \ |
| 3324 | "Update the system state, possibly saving it at intervals", \ |
| 3325 | module_init, module_destroy) |
| 3326 | |
| 3327 | |
| 3328 | |