| 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 | |
| 20 | #include <lttv/state.h> |
| 21 | #include <ltt/facility.h> |
| 22 | #include <ltt/trace.h> |
| 23 | #include <ltt/event.h> |
| 24 | #include <ltt/type.h> |
| 25 | |
| 26 | LttvExecutionMode |
| 27 | LTTV_STATE_MODE_UNKNOWN, |
| 28 | LTTV_STATE_USER_MODE, |
| 29 | LTTV_STATE_SYSCALL, |
| 30 | LTTV_STATE_TRAP, |
| 31 | LTTV_STATE_IRQ; |
| 32 | |
| 33 | LttvExecutionSubmode |
| 34 | LTTV_STATE_SUBMODE_UNKNOWN, |
| 35 | LTTV_STATE_SUBMODE_NONE; |
| 36 | |
| 37 | LttvProcessStatus |
| 38 | LTTV_STATE_UNNAMED, |
| 39 | LTTV_STATE_WAIT_FORK, |
| 40 | LTTV_STATE_WAIT_CPU, |
| 41 | LTTV_STATE_EXIT, |
| 42 | LTTV_STATE_WAIT, |
| 43 | LTTV_STATE_RUN; |
| 44 | |
| 45 | static GQuark |
| 46 | LTTV_STATE_TRACEFILES, |
| 47 | LTTV_STATE_PROCESSES, |
| 48 | LTTV_STATE_PROCESS, |
| 49 | LTTV_STATE_EVENT, |
| 50 | LTTV_STATE_SAVED_STATES, |
| 51 | LTTV_STATE_TIME, |
| 52 | LTTV_STATE_HOOKS; |
| 53 | |
| 54 | |
| 55 | static void fill_name_tables(LttvTraceState *tcs); |
| 56 | |
| 57 | static void free_name_tables(LttvTraceState *tcs); |
| 58 | |
| 59 | static void lttv_state_free_process_table(GHashTable *processes); |
| 60 | |
| 61 | static LttvProcessState *create_process(LttvTracefileState *tfs, |
| 62 | LttvProcessState *parent, guint pid); |
| 63 | |
| 64 | void lttv_state_save(LttvTraceState *self, LttvAttribute *container) |
| 65 | { |
| 66 | LTTV_TRACE_STATE_GET_CLASS(self)->state_save(self, container); |
| 67 | } |
| 68 | |
| 69 | |
| 70 | void lttv_state_restore(LttvTraceState *self, LttvAttribute *container) |
| 71 | { |
| 72 | LTTV_TRACE_STATE_GET_CLASS(self)->state_restore(self, container); |
| 73 | } |
| 74 | |
| 75 | |
| 76 | void lttv_state_saved_state_free(LttvTraceState *self, |
| 77 | LttvAttribute *container) |
| 78 | { |
| 79 | LTTV_TRACE_STATE_GET_CLASS(self)->state_restore(self, container); |
| 80 | } |
| 81 | |
| 82 | |
| 83 | static void |
| 84 | restore_init_state(LttvTraceState *self) |
| 85 | { |
| 86 | guint i, nb_control, nb_per_cpu, nb_tracefile; |
| 87 | |
| 88 | LttvTracefileState *tfcs; |
| 89 | |
| 90 | LttTime null_time = {0,0}; |
| 91 | |
| 92 | if(self->processes != NULL) lttv_state_free_process_table(self->processes); |
| 93 | self->processes = g_hash_table_new(g_direct_hash, g_direct_equal); |
| 94 | self->nb_event = 0; |
| 95 | |
| 96 | nb_control = ltt_trace_control_tracefile_number(self->parent.t); |
| 97 | nb_per_cpu = ltt_trace_per_cpu_tracefile_number(self->parent.t); |
| 98 | nb_tracefile = nb_control + nb_per_cpu; |
| 99 | for(i = 0 ; i < nb_tracefile ; i++) { |
| 100 | if(i < nb_control) { |
| 101 | tfcs = LTTV_TRACEFILE_STATE(self->parent.control_tracefiles[i]); |
| 102 | } |
| 103 | else { |
| 104 | tfcs = LTTV_TRACEFILE_STATE(self->parent.per_cpu_tracefiles[i - nb_control]); |
| 105 | } |
| 106 | |
| 107 | tfcs->parent.timestamp = null_time; |
| 108 | tfcs->saved_position = 0; |
| 109 | tfcs->process = create_process(tfcs, NULL,0); |
| 110 | } |
| 111 | } |
| 112 | |
| 113 | |
| 114 | static void |
| 115 | init(LttvTracesetState *self, LttvTraceset *ts) |
| 116 | { |
| 117 | guint i, j, nb_trace, nb_control, nb_per_cpu, nb_tracefile; |
| 118 | |
| 119 | LttvTraceContext *tc; |
| 120 | |
| 121 | LttvTraceState *tcs; |
| 122 | |
| 123 | LttvTracefileState *tfcs; |
| 124 | |
| 125 | LTTV_TRACESET_CONTEXT_CLASS(g_type_class_peek(LTTV_TRACESET_CONTEXT_TYPE))-> |
| 126 | init((LttvTracesetContext *)self, ts); |
| 127 | |
| 128 | nb_trace = lttv_traceset_number(ts); |
| 129 | for(i = 0 ; i < nb_trace ; i++) { |
| 130 | tc = self->parent.traces[i]; |
| 131 | tcs = (LttvTraceState *)tc; |
| 132 | tcs->save_interval = 100000; |
| 133 | tcs->recompute_state_in_seek = false; |
| 134 | tcs->saved_state_ready = false; |
| 135 | fill_name_tables(tcs); |
| 136 | |
| 137 | nb_control = ltt_trace_control_tracefile_number(tc->t); |
| 138 | nb_per_cpu = ltt_trace_per_cpu_tracefile_number(tc->t); |
| 139 | nb_tracefile = nb_control + nb_per_cpu; |
| 140 | for(j = 0 ; j < nb_tracefile ; j++) { |
| 141 | if(j < nb_control) { |
| 142 | tfcs = LTTV_TRACEFILE_STATE(tc->control_tracefiles[j]); |
| 143 | } |
| 144 | else { |
| 145 | tfcs = LTTV_TRACEFILE_STATE(tc->per_cpu_tracefiles[j - nb_control]); |
| 146 | } |
| 147 | tfcs->cpu_name= g_quark_from_string(ltt_tracefile_name(tfcs->parent.tf)); |
| 148 | } |
| 149 | tcs->processes = NULL; |
| 150 | restore_init_state(tcs); |
| 151 | } |
| 152 | } |
| 153 | |
| 154 | |
| 155 | static void |
| 156 | fini(LttvTracesetState *self) |
| 157 | { |
| 158 | guint i, j, nb_trace, nb_tracefile; |
| 159 | |
| 160 | LttvTraceState *tcs; |
| 161 | |
| 162 | LttvTracefileState *tfcs; |
| 163 | |
| 164 | nb_trace = lttv_traceset_number(LTTV_TRACESET_CONTEXT(self)->ts); |
| 165 | for(i = 0 ; i < nb_trace ; i++) { |
| 166 | tcs = (LttvTraceState *)(LTTV_TRACESET_CONTEXT(self)->traces[i]); |
| 167 | lttv_state_free_process_table(tcs->processes); |
| 168 | tcs->processes = NULL; |
| 169 | free_name_tables(tcs); |
| 170 | } |
| 171 | LTTV_TRACESET_CONTEXT_CLASS(g_type_class_peek(LTTV_TRACESET_CONTEXT_TYPE))-> |
| 172 | fini((LttvTracesetContext *)self); |
| 173 | } |
| 174 | |
| 175 | |
| 176 | static LttvTracesetContext * |
| 177 | new_traceset_context(LttvTracesetContext *self) |
| 178 | { |
| 179 | return LTTV_TRACESET_CONTEXT(g_object_new(LTTV_TRACESET_STATE_TYPE, NULL)); |
| 180 | } |
| 181 | |
| 182 | |
| 183 | static LttvTraceContext * |
| 184 | new_trace_context(LttvTracesetContext *self) |
| 185 | { |
| 186 | return LTTV_TRACE_CONTEXT(g_object_new(LTTV_TRACE_STATE_TYPE, NULL)); |
| 187 | } |
| 188 | |
| 189 | |
| 190 | static LttvTracefileContext * |
| 191 | new_tracefile_context(LttvTracesetContext *self) |
| 192 | { |
| 193 | return LTTV_TRACEFILE_CONTEXT(g_object_new(LTTV_TRACEFILE_STATE_TYPE, NULL)); |
| 194 | } |
| 195 | |
| 196 | |
| 197 | static void copy_process_state(gpointer key, gpointer value,gpointer user_data) |
| 198 | { |
| 199 | LttvProcessState *process, *new_process; |
| 200 | |
| 201 | GHashTable *new_processes = (GHashTable *)user_data; |
| 202 | |
| 203 | guint i; |
| 204 | |
| 205 | process = (LttvProcessState *)value; |
| 206 | new_process = g_new(LttvProcessState, 1); |
| 207 | *new_process = *process; |
| 208 | new_process->execution_stack = g_array_new(FALSE, FALSE, |
| 209 | sizeof(LttvExecutionState)); |
| 210 | g_array_set_size(new_process->execution_stack,process->execution_stack->len); |
| 211 | for(i = 0 ; i < process->execution_stack->len; i++) { |
| 212 | g_array_index(new_process->execution_stack, LttvExecutionState, i) = |
| 213 | g_array_index(process->execution_stack, LttvExecutionState, i); |
| 214 | } |
| 215 | new_process->state = &g_array_index(new_process->execution_stack, |
| 216 | LttvExecutionState, new_process->execution_stack->len - 1); |
| 217 | g_hash_table_insert(new_processes, GUINT_TO_POINTER(new_process->pid), |
| 218 | new_process); |
| 219 | } |
| 220 | |
| 221 | |
| 222 | static GHashTable *lttv_state_copy_process_table(GHashTable *processes) |
| 223 | { |
| 224 | GHashTable *new_processes = g_hash_table_new(g_direct_hash, g_direct_equal); |
| 225 | |
| 226 | g_hash_table_foreach(processes, copy_process_state, new_processes); |
| 227 | return new_processes; |
| 228 | } |
| 229 | |
| 230 | |
| 231 | /* The saved state for each trace contains a member "processes", which |
| 232 | stores a copy of the process table, and a member "tracefiles" with |
| 233 | one entry per tracefile. Each tracefile has a "process" member pointing |
| 234 | to the current process and a "position" member storing the tracefile |
| 235 | position (needed to seek to the current "next" event. */ |
| 236 | |
| 237 | static void state_save(LttvTraceState *self, LttvAttribute *container) |
| 238 | { |
| 239 | guint i, nb_control, nb_per_cpu, nb_tracefile; |
| 240 | |
| 241 | LttvTracefileState *tfcs; |
| 242 | |
| 243 | LttvAttribute *tracefiles_tree, *tracefile_tree; |
| 244 | |
| 245 | LttvAttributeType type; |
| 246 | |
| 247 | LttvAttributeValue value; |
| 248 | |
| 249 | LttvAttributeName name; |
| 250 | |
| 251 | LttEventPosition *ep; |
| 252 | |
| 253 | tracefiles_tree = lttv_attribute_find_subdir(container, |
| 254 | LTTV_STATE_TRACEFILES); |
| 255 | |
| 256 | value = lttv_attribute_add(container, LTTV_STATE_PROCESSES, |
| 257 | LTTV_POINTER); |
| 258 | *(value.v_pointer) = lttv_state_copy_process_table(self->processes); |
| 259 | |
| 260 | nb_control = ltt_trace_control_tracefile_number(self->parent.t); |
| 261 | nb_per_cpu = ltt_trace_per_cpu_tracefile_number(self->parent.t); |
| 262 | nb_tracefile = nb_control + nb_per_cpu; |
| 263 | |
| 264 | for(i = 0 ; i < nb_tracefile ; i++) { |
| 265 | if(i < nb_control) |
| 266 | tfcs = (LttvTracefileState *)self->parent.control_tracefiles[i]; |
| 267 | else tfcs = (LttvTracefileState *) |
| 268 | self->parent.per_cpu_tracefiles[i - nb_control]; |
| 269 | |
| 270 | tracefile_tree = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL); |
| 271 | value = lttv_attribute_add(tracefiles_tree, i, |
| 272 | LTTV_GOBJECT); |
| 273 | *(value.v_gobject) = (GObject *)tracefile_tree; |
| 274 | value = lttv_attribute_add(tracefile_tree, LTTV_STATE_PROCESS, |
| 275 | LTTV_UINT); |
| 276 | *(value.v_uint) = tfcs->process->pid; |
| 277 | value = lttv_attribute_add(tracefile_tree, LTTV_STATE_EVENT, |
| 278 | LTTV_POINTER); |
| 279 | if(tfcs->parent.e == NULL) *(value.v_pointer) = NULL; |
| 280 | else { |
| 281 | ep = ltt_event_position_new(); |
| 282 | ltt_event_position(tfcs->parent.e, ep); |
| 283 | *(value.v_pointer) = ep; |
| 284 | } |
| 285 | } |
| 286 | } |
| 287 | |
| 288 | |
| 289 | static void state_restore(LttvTraceState *self, LttvAttribute *container) |
| 290 | { |
| 291 | guint i, nb_control, nb_per_cpu, nb_tracefile; |
| 292 | |
| 293 | LttvTracefileState *tfcs; |
| 294 | |
| 295 | LttvAttribute *tracefiles_tree, *tracefile_tree; |
| 296 | |
| 297 | LttvAttributeType type; |
| 298 | |
| 299 | LttvAttributeValue value; |
| 300 | |
| 301 | LttvAttributeName name; |
| 302 | |
| 303 | LttEventPosition *ep; |
| 304 | |
| 305 | tracefiles_tree = lttv_attribute_find_subdir(container, |
| 306 | LTTV_STATE_TRACEFILES); |
| 307 | |
| 308 | type = lttv_attribute_get_by_name(container, LTTV_STATE_PROCESSES, |
| 309 | &value); |
| 310 | g_assert(type == LTTV_POINTER); |
| 311 | lttv_state_free_process_table(self->processes); |
| 312 | self->processes = lttv_state_copy_process_table(*(value.v_pointer)); |
| 313 | |
| 314 | nb_control = ltt_trace_control_tracefile_number(self->parent.t); |
| 315 | nb_per_cpu = ltt_trace_per_cpu_tracefile_number(self->parent.t); |
| 316 | nb_tracefile = nb_control + nb_per_cpu; |
| 317 | |
| 318 | for(i = 0 ; i < nb_tracefile ; i++) { |
| 319 | if(i < nb_control) tfcs = (LttvTracefileState *) |
| 320 | self->parent.control_tracefiles[i]; |
| 321 | else tfcs = (LttvTracefileState *) |
| 322 | self->parent.per_cpu_tracefiles[i - nb_control]; |
| 323 | |
| 324 | type = lttv_attribute_get(tracefiles_tree, i, &name, &value); |
| 325 | g_assert(type == LTTV_GOBJECT); |
| 326 | tracefile_tree = *((LttvAttribute **)(value.v_gobject)); |
| 327 | |
| 328 | type = lttv_attribute_get_by_name(tracefile_tree, LTTV_STATE_PROCESS, |
| 329 | &value); |
| 330 | g_assert(type == LTTV_UINT); |
| 331 | tfcs->process = lttv_state_find_process(tfcs, *(value.v_uint)); |
| 332 | type = lttv_attribute_get_by_name(tracefile_tree, LTTV_STATE_EVENT, |
| 333 | &value); |
| 334 | g_assert(type == LTTV_POINTER); |
| 335 | if(*(value.v_pointer) == NULL) tfcs->parent.e = NULL; |
| 336 | else { |
| 337 | ep = *(value.v_pointer); |
| 338 | ltt_tracefile_seek_position(tfcs->parent.tf, ep); |
| 339 | tfcs->parent.e = ltt_tracefile_read(tfcs->parent.tf); |
| 340 | tfcs->parent.timestamp = ltt_event_time(tfcs->parent.e); |
| 341 | } |
| 342 | } |
| 343 | } |
| 344 | |
| 345 | |
| 346 | static void state_saved_free(LttvTraceState *self, LttvAttribute *container) |
| 347 | { |
| 348 | guint i, nb_control, nb_per_cpu, nb_tracefile; |
| 349 | |
| 350 | LttvTracefileState *tfcs; |
| 351 | |
| 352 | LttvAttribute *tracefiles_tree, *tracefile_tree; |
| 353 | |
| 354 | LttvAttributeType type; |
| 355 | |
| 356 | LttvAttributeValue value; |
| 357 | |
| 358 | LttvAttributeName name; |
| 359 | |
| 360 | LttEventPosition *ep; |
| 361 | |
| 362 | tracefiles_tree = lttv_attribute_find_subdir(container, |
| 363 | LTTV_STATE_TRACEFILES); |
| 364 | lttv_attribute_remove_by_name(container, LTTV_STATE_TRACEFILES); |
| 365 | |
| 366 | type = lttv_attribute_get_by_name(container, LTTV_STATE_PROCESSES, |
| 367 | &value); |
| 368 | g_assert(type == LTTV_POINTER); |
| 369 | lttv_state_free_process_table(*(value.v_pointer)); |
| 370 | *(value.v_pointer) = NULL; |
| 371 | lttv_attribute_remove_by_name(container, LTTV_STATE_PROCESSES); |
| 372 | |
| 373 | nb_control = ltt_trace_control_tracefile_number(self->parent.t); |
| 374 | nb_per_cpu = ltt_trace_per_cpu_tracefile_number(self->parent.t); |
| 375 | nb_tracefile = nb_control + nb_per_cpu; |
| 376 | |
| 377 | for(i = 0 ; i < nb_tracefile ; i++) { |
| 378 | if(i < nb_control) tfcs = (LttvTracefileState *) |
| 379 | self->parent.control_tracefiles[i]; |
| 380 | else tfcs = (LttvTracefileState *) |
| 381 | self->parent.per_cpu_tracefiles[i - nb_control]; |
| 382 | |
| 383 | type = lttv_attribute_get(tracefiles_tree, i, &name, &value); |
| 384 | g_assert(type == LTTV_GOBJECT); |
| 385 | tracefile_tree = *((LttvAttribute **)(value.v_gobject)); |
| 386 | |
| 387 | type = lttv_attribute_get_by_name(tracefile_tree, LTTV_STATE_EVENT, |
| 388 | &value); |
| 389 | g_assert(type == LTTV_POINTER); |
| 390 | if(*(value.v_pointer) != NULL) g_free(*(value.v_pointer)); |
| 391 | } |
| 392 | lttv_attribute_recursive_free(tracefiles_tree); |
| 393 | } |
| 394 | |
| 395 | |
| 396 | static void |
| 397 | fill_name_tables(LttvTraceState *tcs) |
| 398 | { |
| 399 | int i, nb; |
| 400 | |
| 401 | char *f_name, *e_name; |
| 402 | |
| 403 | LttvTraceHook h; |
| 404 | |
| 405 | LttEventType *et; |
| 406 | |
| 407 | LttType *t; |
| 408 | |
| 409 | GString *fe_name = g_string_new(""); |
| 410 | |
| 411 | nb = ltt_trace_eventtype_number(tcs->parent.t); |
| 412 | tcs->eventtype_names = g_new(GQuark, nb); |
| 413 | for(i = 0 ; i < nb ; i++) { |
| 414 | et = ltt_trace_eventtype_get(tcs->parent.t, i); |
| 415 | e_name = ltt_eventtype_name(et); |
| 416 | f_name = ltt_facility_name(ltt_eventtype_facility(et)); |
| 417 | g_string_printf(fe_name, "%s.%s", f_name, e_name); |
| 418 | tcs->eventtype_names[i] = g_quark_from_string(fe_name->str); |
| 419 | } |
| 420 | |
| 421 | lttv_trace_find_hook(tcs->parent.t, "core", "syscall_entry", |
| 422 | "syscall_id", NULL, NULL, NULL, &h); |
| 423 | t = ltt_field_type(h.f1); |
| 424 | nb = ltt_type_element_number(t); |
| 425 | |
| 426 | /* CHECK syscalls should be an emun but currently are not! |
| 427 | tcs->syscall_names = g_new(GQuark, nb); |
| 428 | |
| 429 | for(i = 0 ; i < nb ; i++) { |
| 430 | tcs->syscall_names[i] = g_quark_from_string(ltt_enum_string_get(t, i)); |
| 431 | } |
| 432 | */ |
| 433 | |
| 434 | tcs->syscall_names = g_new(GQuark, 256); |
| 435 | for(i = 0 ; i < 256 ; i++) { |
| 436 | g_string_printf(fe_name, "syscall %d", i); |
| 437 | tcs->syscall_names[i] = g_quark_from_string(fe_name->str); |
| 438 | } |
| 439 | |
| 440 | lttv_trace_find_hook(tcs->parent.t, "core", "trap_entry", |
| 441 | "trap_id", NULL, NULL, NULL, &h); |
| 442 | t = ltt_field_type(h.f1); |
| 443 | nb = ltt_type_element_number(t); |
| 444 | |
| 445 | /* |
| 446 | tcs->trap_names = g_new(GQuark, nb); |
| 447 | for(i = 0 ; i < nb ; i++) { |
| 448 | tcs->trap_names[i] = g_quark_from_string(ltt_enum_string_get(t, i)); |
| 449 | } |
| 450 | */ |
| 451 | |
| 452 | tcs->trap_names = g_new(GQuark, 256); |
| 453 | for(i = 0 ; i < 256 ; i++) { |
| 454 | g_string_printf(fe_name, "trap %d", i); |
| 455 | tcs->trap_names[i] = g_quark_from_string(fe_name->str); |
| 456 | } |
| 457 | |
| 458 | lttv_trace_find_hook(tcs->parent.t, "core", "irq_entry", |
| 459 | "irq_id", NULL, NULL, NULL, &h); |
| 460 | t = ltt_field_type(h.f1); |
| 461 | nb = ltt_type_element_number(t); |
| 462 | |
| 463 | /* |
| 464 | tcs->irq_names = g_new(GQuark, nb); |
| 465 | for(i = 0 ; i < nb ; i++) { |
| 466 | tcs->irq_names[i] = g_quark_from_string(ltt_enum_string_get(t, i)); |
| 467 | } |
| 468 | */ |
| 469 | |
| 470 | tcs->irq_names = g_new(GQuark, 256); |
| 471 | for(i = 0 ; i < 256 ; i++) { |
| 472 | g_string_printf(fe_name, "irq %d", i); |
| 473 | tcs->irq_names[i] = g_quark_from_string(fe_name->str); |
| 474 | } |
| 475 | |
| 476 | g_string_free(fe_name, TRUE); |
| 477 | } |
| 478 | |
| 479 | |
| 480 | static void |
| 481 | free_name_tables(LttvTraceState *tcs) |
| 482 | { |
| 483 | g_free(tcs->eventtype_names); |
| 484 | g_free(tcs->syscall_names); |
| 485 | g_free(tcs->trap_names); |
| 486 | g_free(tcs->irq_names); |
| 487 | } |
| 488 | |
| 489 | |
| 490 | static void push_state(LttvTracefileState *tfs, LttvExecutionMode t, |
| 491 | guint state_id) |
| 492 | { |
| 493 | LttvExecutionState *es; |
| 494 | |
| 495 | LttvProcessState *process = tfs->process; |
| 496 | |
| 497 | guint depth = process->execution_stack->len; |
| 498 | |
| 499 | g_array_set_size(process->execution_stack, depth + 1); |
| 500 | es = &g_array_index(process->execution_stack, LttvExecutionState, depth); |
| 501 | es->t = t; |
| 502 | es->n = state_id; |
| 503 | es->entry = es->change = tfs->parent.timestamp; |
| 504 | es->s = process->state->s; |
| 505 | process->state = es; |
| 506 | } |
| 507 | |
| 508 | |
| 509 | static void pop_state(LttvTracefileState *tfs, LttvExecutionMode t) |
| 510 | { |
| 511 | LttvProcessState *process = tfs->process; |
| 512 | |
| 513 | guint depth = process->execution_stack->len - 1; |
| 514 | |
| 515 | if(process->state->t != t){ |
| 516 | g_warning("Different execution mode type (%d.%09d): ignore it\n", |
| 517 | tfs->parent.timestamp.tv_sec, tfs->parent.timestamp.tv_nsec); |
| 518 | g_warning("process state has %s when pop_int is %s\n", |
| 519 | g_quark_to_string(process->state->t), |
| 520 | g_quark_to_string(t)); |
| 521 | g_warning("{ %u, %u, %s, %s }\n", |
| 522 | process->pid, |
| 523 | process->ppid, |
| 524 | g_quark_to_string(process->name), |
| 525 | g_quark_to_string(process->state->s)); |
| 526 | return; |
| 527 | } |
| 528 | |
| 529 | if(depth == 0){ |
| 530 | g_warning("Trying to pop last state on stack (%d.%09d): ignore it\n", |
| 531 | tfs->parent.timestamp.tv_sec, tfs->parent.timestamp.tv_nsec); |
| 532 | return; |
| 533 | } |
| 534 | |
| 535 | g_array_remove_index(process->execution_stack, depth); |
| 536 | depth--; |
| 537 | process->state = &g_array_index(process->execution_stack, LttvExecutionState, |
| 538 | depth); |
| 539 | process->state->change = tfs->parent.timestamp; |
| 540 | } |
| 541 | |
| 542 | |
| 543 | static LttvProcessState *create_process(LttvTracefileState *tfs, |
| 544 | LttvProcessState *parent, guint pid) |
| 545 | { |
| 546 | LttvProcessState *process = g_new(LttvProcessState, 1); |
| 547 | |
| 548 | LttvExecutionState *es; |
| 549 | |
| 550 | LttvTraceContext *tc; |
| 551 | |
| 552 | LttvTraceState *tcs; |
| 553 | |
| 554 | char buffer[128]; |
| 555 | |
| 556 | tcs = (LttvTraceState *)tc = tfs->parent.t_context; |
| 557 | |
| 558 | g_hash_table_insert(tcs->processes, GUINT_TO_POINTER(pid), process); |
| 559 | process->pid = pid; |
| 560 | |
| 561 | if(parent) { |
| 562 | process->ppid = parent->pid; |
| 563 | process->name = parent->name; |
| 564 | } |
| 565 | else { |
| 566 | process->ppid = 0; |
| 567 | process->name = LTTV_STATE_UNNAMED; |
| 568 | } |
| 569 | |
| 570 | process->creation_time = tfs->parent.timestamp; |
| 571 | sprintf(buffer,"%d-%lu.%lu",pid, process->creation_time.tv_sec, |
| 572 | process->creation_time.tv_nsec); |
| 573 | process->pid_time = g_quark_from_string(buffer); |
| 574 | process->execution_stack = g_array_new(FALSE, FALSE, |
| 575 | sizeof(LttvExecutionState)); |
| 576 | g_array_set_size(process->execution_stack, 1); |
| 577 | es = process->state = &g_array_index(process->execution_stack, |
| 578 | LttvExecutionState, 0); |
| 579 | es->t = LTTV_STATE_USER_MODE; |
| 580 | es->n = LTTV_STATE_SUBMODE_NONE; |
| 581 | es->entry = tfs->parent.timestamp; |
| 582 | es->change = tfs->parent.timestamp; |
| 583 | es->s = LTTV_STATE_WAIT_FORK; |
| 584 | |
| 585 | return process; |
| 586 | } |
| 587 | |
| 588 | |
| 589 | LttvProcessState *lttv_state_find_process(LttvTracefileState *tfs, |
| 590 | guint pid) |
| 591 | { |
| 592 | LttvTraceState *ts =(LttvTraceState *)LTTV_TRACEFILE_CONTEXT(tfs)->t_context; |
| 593 | LttvProcessState *process = g_hash_table_lookup(ts->processes, |
| 594 | GUINT_TO_POINTER(pid)); |
| 595 | if(process == NULL) process = create_process(tfs, NULL, pid); |
| 596 | return process; |
| 597 | } |
| 598 | |
| 599 | |
| 600 | static void exit_process(LttvTracefileState *tfs, LttvProcessState *process) |
| 601 | { |
| 602 | LttvTraceState *ts = LTTV_TRACE_STATE(tfs->parent.t_context); |
| 603 | |
| 604 | g_hash_table_remove(ts->processes, GUINT_TO_POINTER(process->pid)); |
| 605 | g_array_free(process->execution_stack, TRUE); |
| 606 | g_free(process); |
| 607 | } |
| 608 | |
| 609 | |
| 610 | static void free_process_state(gpointer key, gpointer value,gpointer user_data) |
| 611 | { |
| 612 | g_array_free(((LttvProcessState *)value)->execution_stack, TRUE); |
| 613 | g_free(value); |
| 614 | } |
| 615 | |
| 616 | |
| 617 | static void lttv_state_free_process_table(GHashTable *processes) |
| 618 | { |
| 619 | g_hash_table_foreach(processes, free_process_state, NULL); |
| 620 | g_hash_table_destroy(processes); |
| 621 | } |
| 622 | |
| 623 | |
| 624 | static gboolean syscall_entry(void *hook_data, void *call_data) |
| 625 | { |
| 626 | LttField *f = ((LttvTraceHook *)hook_data)->f1; |
| 627 | |
| 628 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 629 | |
| 630 | LttvExecutionSubmode submode; |
| 631 | |
| 632 | submode = ((LttvTraceState *)(s->parent.t_context))->syscall_names[ |
| 633 | ltt_event_get_unsigned(s->parent.e, f)]; |
| 634 | push_state(s, LTTV_STATE_SYSCALL, submode); |
| 635 | return FALSE; |
| 636 | } |
| 637 | |
| 638 | |
| 639 | static gboolean syscall_exit(void *hook_data, void *call_data) |
| 640 | { |
| 641 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 642 | |
| 643 | pop_state(s, LTTV_STATE_SYSCALL); |
| 644 | return FALSE; |
| 645 | } |
| 646 | |
| 647 | |
| 648 | static gboolean trap_entry(void *hook_data, void *call_data) |
| 649 | { |
| 650 | LttField *f = ((LttvTraceHook *)hook_data)->f1; |
| 651 | |
| 652 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 653 | |
| 654 | LttvExecutionSubmode submode; |
| 655 | |
| 656 | submode = ((LttvTraceState *)(s->parent.t_context))->trap_names[ |
| 657 | ltt_event_get_unsigned(s->parent.e, f)]; |
| 658 | push_state(s, LTTV_STATE_TRAP, submode); |
| 659 | return FALSE; |
| 660 | } |
| 661 | |
| 662 | |
| 663 | static gboolean trap_exit(void *hook_data, void *call_data) |
| 664 | { |
| 665 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 666 | |
| 667 | pop_state(s, LTTV_STATE_TRAP); |
| 668 | return FALSE; |
| 669 | } |
| 670 | |
| 671 | |
| 672 | static gboolean irq_entry(void *hook_data, void *call_data) |
| 673 | { |
| 674 | LttField *f = ((LttvTraceHook *)hook_data)->f1; |
| 675 | |
| 676 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 677 | |
| 678 | LttvExecutionSubmode submode; |
| 679 | |
| 680 | submode = ((LttvTraceState *)(s->parent.t_context))->irq_names[ |
| 681 | ltt_event_get_unsigned(s->parent.e, f)]; |
| 682 | |
| 683 | /* Do something with the info about being in user or system mode when int? */ |
| 684 | push_state(s, LTTV_STATE_IRQ, submode); |
| 685 | return FALSE; |
| 686 | } |
| 687 | |
| 688 | |
| 689 | static gboolean irq_exit(void *hook_data, void *call_data) |
| 690 | { |
| 691 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 692 | |
| 693 | pop_state(s, LTTV_STATE_IRQ); |
| 694 | return FALSE; |
| 695 | } |
| 696 | |
| 697 | |
| 698 | static gboolean schedchange(void *hook_data, void *call_data) |
| 699 | { |
| 700 | LttvTraceHook *h = (LttvTraceHook *)hook_data; |
| 701 | |
| 702 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 703 | |
| 704 | guint pid_in, pid_out, state_out; |
| 705 | |
| 706 | pid_in = ltt_event_get_unsigned(s->parent.e, h->f1); |
| 707 | pid_out = ltt_event_get_unsigned(s->parent.e, h->f2); |
| 708 | state_out = ltt_event_get_unsigned(s->parent.e, h->f3); |
| 709 | |
| 710 | if(s->process != NULL) { |
| 711 | |
| 712 | if(state_out == 0) s->process->state->s = LTTV_STATE_WAIT_CPU; |
| 713 | else if(s->process->state->s == LTTV_STATE_EXIT) |
| 714 | exit_process(s, s->process); |
| 715 | else s->process->state->s = LTTV_STATE_WAIT; |
| 716 | |
| 717 | if(s->process->pid == 0) |
| 718 | s->process->pid = pid_out; |
| 719 | |
| 720 | s->process->state->change = s->parent.timestamp; |
| 721 | } |
| 722 | s->process = lttv_state_find_process(s, pid_in); |
| 723 | s->process->state->s = LTTV_STATE_RUN; |
| 724 | s->process->state->change = s->parent.timestamp; |
| 725 | return FALSE; |
| 726 | } |
| 727 | |
| 728 | |
| 729 | static gboolean process_fork(void *hook_data, void *call_data) |
| 730 | { |
| 731 | LttField *f = ((LttvTraceHook *)hook_data)->f1; |
| 732 | |
| 733 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 734 | |
| 735 | guint child_pid; |
| 736 | |
| 737 | child_pid = ltt_event_get_unsigned(s->parent.e, f); |
| 738 | create_process(s, s->process, child_pid); |
| 739 | return FALSE; |
| 740 | } |
| 741 | |
| 742 | |
| 743 | static gboolean process_exit(void *hook_data, void *call_data) |
| 744 | { |
| 745 | LttvTracefileState *s = (LttvTracefileState *)call_data; |
| 746 | |
| 747 | if(s->process != NULL) { |
| 748 | s->process->state->s = LTTV_STATE_EXIT; |
| 749 | } |
| 750 | return FALSE; |
| 751 | } |
| 752 | |
| 753 | |
| 754 | void lttv_state_add_event_hooks(LttvTracesetState *self) |
| 755 | { |
| 756 | LttvTraceset *traceset = self->parent.ts; |
| 757 | |
| 758 | guint i, j, k, nb_trace, nb_control, nb_per_cpu, nb_tracefile; |
| 759 | |
| 760 | LttvTraceState *ts; |
| 761 | |
| 762 | LttvTracefileState *tfs; |
| 763 | |
| 764 | GArray *hooks; |
| 765 | |
| 766 | LttvTraceHook hook; |
| 767 | |
| 768 | LttvAttributeValue val; |
| 769 | |
| 770 | nb_trace = lttv_traceset_number(traceset); |
| 771 | for(i = 0 ; i < nb_trace ; i++) { |
| 772 | ts = (LttvTraceState *)self->parent.traces[i]; |
| 773 | |
| 774 | /* Find the eventtype id for the following events and register the |
| 775 | associated by id hooks. */ |
| 776 | |
| 777 | hooks = g_array_new(FALSE, FALSE, sizeof(LttvTraceHook)); |
| 778 | g_array_set_size(hooks, 9); |
| 779 | |
| 780 | lttv_trace_find_hook(ts->parent.t, "core","syscall_entry","syscall_id", |
| 781 | NULL, NULL, syscall_entry, &g_array_index(hooks, LttvTraceHook, 0)); |
| 782 | |
| 783 | lttv_trace_find_hook(ts->parent.t, "core", "syscall_exit", NULL, NULL, |
| 784 | NULL, syscall_exit, &g_array_index(hooks, LttvTraceHook, 1)); |
| 785 | |
| 786 | lttv_trace_find_hook(ts->parent.t, "core", "trap_entry", "trap_id", |
| 787 | NULL, NULL, trap_entry, &g_array_index(hooks, LttvTraceHook, 2)); |
| 788 | |
| 789 | lttv_trace_find_hook(ts->parent.t, "core", "trap_exit", NULL, NULL, NULL, |
| 790 | trap_exit, &g_array_index(hooks, LttvTraceHook, 3)); |
| 791 | |
| 792 | lttv_trace_find_hook(ts->parent.t, "core", "irq_entry", "irq_id", NULL, |
| 793 | NULL, irq_entry, &g_array_index(hooks, LttvTraceHook, 4)); |
| 794 | |
| 795 | lttv_trace_find_hook(ts->parent.t, "core", "irq_exit", NULL, NULL, NULL, |
| 796 | irq_exit, &g_array_index(hooks, LttvTraceHook, 5)); |
| 797 | |
| 798 | lttv_trace_find_hook(ts->parent.t, "core", "schedchange", "in", "out", |
| 799 | "out_state", schedchange, &g_array_index(hooks, LttvTraceHook, 6)); |
| 800 | |
| 801 | lttv_trace_find_hook(ts->parent.t, "core", "process_fork", "child_pid", |
| 802 | NULL, NULL, process_fork, &g_array_index(hooks, LttvTraceHook, 7)); |
| 803 | |
| 804 | lttv_trace_find_hook(ts->parent.t, "core", "process_exit", NULL, NULL, |
| 805 | NULL, process_exit, &g_array_index(hooks, LttvTraceHook, 8)); |
| 806 | |
| 807 | /* Add these hooks to each before_event_by_id hooks list */ |
| 808 | |
| 809 | nb_control = ltt_trace_control_tracefile_number(ts->parent.t); |
| 810 | nb_per_cpu = ltt_trace_per_cpu_tracefile_number(ts->parent.t); |
| 811 | nb_tracefile = nb_control + nb_per_cpu; |
| 812 | for(j = 0 ; j < nb_tracefile ; j++) { |
| 813 | if(j < nb_control) { |
| 814 | tfs = LTTV_TRACEFILE_STATE(ts->parent.control_tracefiles[j]); |
| 815 | } |
| 816 | else { |
| 817 | tfs = LTTV_TRACEFILE_STATE(ts->parent.per_cpu_tracefiles[j-nb_control]); |
| 818 | } |
| 819 | |
| 820 | for(k = 0 ; k < hooks->len ; k++) { |
| 821 | hook = g_array_index(hooks, LttvTraceHook, k); |
| 822 | lttv_hooks_add(lttv_hooks_by_id_find(tfs->parent.after_event_by_id, |
| 823 | hook.id), hook.h, &g_array_index(hooks, LttvTraceHook, k)); |
| 824 | } |
| 825 | } |
| 826 | lttv_attribute_find(self->parent.a, LTTV_STATE_HOOKS, LTTV_POINTER, &val); |
| 827 | *(val.v_pointer) = hooks; |
| 828 | } |
| 829 | } |
| 830 | |
| 831 | |
| 832 | void lttv_state_remove_event_hooks(LttvTracesetState *self) |
| 833 | { |
| 834 | LttvTraceset *traceset = self->parent.ts; |
| 835 | |
| 836 | guint i, j, k, nb_trace, nb_control, nb_per_cpu, nb_tracefile; |
| 837 | |
| 838 | LttvTraceState *ts; |
| 839 | |
| 840 | LttvTracefileState *tfs; |
| 841 | |
| 842 | GArray *hooks; |
| 843 | |
| 844 | LttvTraceHook hook; |
| 845 | |
| 846 | LttvAttributeValue val; |
| 847 | |
| 848 | nb_trace = lttv_traceset_number(traceset); |
| 849 | for(i = 0 ; i < nb_trace ; i++) { |
| 850 | ts = LTTV_TRACE_STATE(self->parent.traces[i]); |
| 851 | lttv_attribute_find(self->parent.a, LTTV_STATE_HOOKS, LTTV_POINTER, &val); |
| 852 | hooks = *(val.v_pointer); |
| 853 | |
| 854 | /* Add these hooks to each before_event_by_id hooks list */ |
| 855 | |
| 856 | nb_control = ltt_trace_control_tracefile_number(ts->parent.t); |
| 857 | nb_per_cpu = ltt_trace_per_cpu_tracefile_number(ts->parent.t); |
| 858 | nb_tracefile = nb_control + nb_per_cpu; |
| 859 | for(j = 0 ; j < nb_tracefile ; j++) { |
| 860 | if(j < nb_control) { |
| 861 | tfs = LTTV_TRACEFILE_STATE(ts->parent.control_tracefiles[j]); |
| 862 | } |
| 863 | else { |
| 864 | tfs = LTTV_TRACEFILE_STATE(ts->parent.per_cpu_tracefiles[j-nb_control]); |
| 865 | } |
| 866 | |
| 867 | for(k = 0 ; k < hooks->len ; k++) { |
| 868 | hook = g_array_index(hooks, LttvTraceHook, k); |
| 869 | lttv_hooks_remove_data( |
| 870 | lttv_hooks_by_id_find(tfs->parent.after_event_by_id, |
| 871 | hook.id), hook.h, &g_array_index(hooks, LttvTraceHook, k)); |
| 872 | } |
| 873 | } |
| 874 | g_array_free(hooks, TRUE); |
| 875 | } |
| 876 | } |
| 877 | |
| 878 | |
| 879 | static gboolean block_end(void *hook_data, void *call_data) |
| 880 | { |
| 881 | LttvTracefileState *tfcs = (LttvTracefileState *)call_data; |
| 882 | |
| 883 | LttvTraceState *tcs = (LttvTraceState *)(tfcs->parent.t_context); |
| 884 | |
| 885 | LttEventPosition *ep = ltt_event_position_new(); |
| 886 | |
| 887 | guint nb_block, nb_event; |
| 888 | |
| 889 | LttTracefile *tf; |
| 890 | |
| 891 | LttvAttribute *saved_states_tree, *saved_state_tree; |
| 892 | |
| 893 | LttvAttributeValue value; |
| 894 | |
| 895 | ltt_event_position(tfcs->parent.e, ep); |
| 896 | |
| 897 | ltt_event_position_get(ep, &nb_block, &nb_event, &tf); |
| 898 | tcs->nb_event += nb_event - tfcs->saved_position; |
| 899 | tfcs->saved_position = 0; |
| 900 | if(tcs->nb_event >= tcs->save_interval) { |
| 901 | saved_states_tree = lttv_attribute_find_subdir(tcs->parent.t_a, |
| 902 | LTTV_STATE_SAVED_STATES); |
| 903 | saved_state_tree = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL); |
| 904 | value = lttv_attribute_add(saved_states_tree, |
| 905 | lttv_attribute_get_number(saved_states_tree), LTTV_GOBJECT); |
| 906 | *(value.v_gobject) = (GObject *)saved_state_tree; |
| 907 | value = lttv_attribute_add(saved_state_tree, LTTV_STATE_TIME, LTTV_TIME); |
| 908 | *(value.v_time) = tfcs->parent.timestamp; |
| 909 | lttv_state_save(tcs, saved_state_tree); |
| 910 | tcs->nb_event = 0; |
| 911 | } |
| 912 | return FALSE; |
| 913 | } |
| 914 | |
| 915 | |
| 916 | void lttv_state_save_add_event_hooks(LttvTracesetState *self) |
| 917 | { |
| 918 | LttvTraceset *traceset = self->parent.ts; |
| 919 | |
| 920 | guint i, j, k, nb_trace, nb_control, nb_per_cpu, nb_tracefile; |
| 921 | |
| 922 | LttvTraceState *ts; |
| 923 | |
| 924 | LttvTracefileState *tfs; |
| 925 | |
| 926 | LttvTraceHook hook; |
| 927 | |
| 928 | nb_trace = lttv_traceset_number(traceset); |
| 929 | for(i = 0 ; i < nb_trace ; i++) { |
| 930 | ts = (LttvTraceState *)self->parent.traces[i]; |
| 931 | lttv_trace_find_hook(ts->parent.t, "core","block_end",NULL, |
| 932 | NULL, NULL, block_end, &hook); |
| 933 | |
| 934 | nb_control = ltt_trace_control_tracefile_number(ts->parent.t); |
| 935 | nb_per_cpu = ltt_trace_per_cpu_tracefile_number(ts->parent.t); |
| 936 | nb_tracefile = nb_control + nb_per_cpu; |
| 937 | for(j = 0 ; j < nb_tracefile ; j++) { |
| 938 | if(j < nb_control) { |
| 939 | tfs = LTTV_TRACEFILE_STATE(ts->parent.control_tracefiles[j]); |
| 940 | } |
| 941 | else { |
| 942 | tfs =LTTV_TRACEFILE_STATE(ts->parent.per_cpu_tracefiles[j-nb_control]); |
| 943 | } |
| 944 | |
| 945 | lttv_hooks_add(lttv_hooks_by_id_find(tfs->parent.after_event_by_id, |
| 946 | hook.id), hook.h, NULL); |
| 947 | } |
| 948 | } |
| 949 | } |
| 950 | |
| 951 | |
| 952 | void lttv_state_save_remove_event_hooks(LttvTracesetState *self) |
| 953 | { |
| 954 | LttvTraceset *traceset = self->parent.ts; |
| 955 | |
| 956 | guint i, j, k, nb_trace, nb_control, nb_per_cpu, nb_tracefile; |
| 957 | |
| 958 | LttvTraceState *ts; |
| 959 | |
| 960 | LttvTracefileState *tfs; |
| 961 | |
| 962 | LttvTraceHook hook; |
| 963 | |
| 964 | nb_trace = lttv_traceset_number(traceset); |
| 965 | for(i = 0 ; i < nb_trace ; i++) { |
| 966 | ts = LTTV_TRACE_STATE(self->parent.traces[i]); |
| 967 | lttv_trace_find_hook(ts->parent.t, "core","block_end",NULL, |
| 968 | NULL, NULL, block_end, &hook); |
| 969 | |
| 970 | nb_control = ltt_trace_control_tracefile_number(ts->parent.t); |
| 971 | nb_per_cpu = ltt_trace_per_cpu_tracefile_number(ts->parent.t); |
| 972 | nb_tracefile = nb_control + nb_per_cpu; |
| 973 | for(j = 0 ; j < nb_tracefile ; j++) { |
| 974 | if(j < nb_control) { |
| 975 | tfs = LTTV_TRACEFILE_STATE(ts->parent.control_tracefiles[j]); |
| 976 | } |
| 977 | else { |
| 978 | tfs =LTTV_TRACEFILE_STATE(ts->parent.per_cpu_tracefiles[j-nb_control]); |
| 979 | } |
| 980 | |
| 981 | lttv_hooks_remove_data(lttv_hooks_by_id_find( |
| 982 | tfs->parent.after_event_by_id, hook.id), hook.h, NULL); |
| 983 | } |
| 984 | } |
| 985 | } |
| 986 | |
| 987 | |
| 988 | void lttv_state_traceset_seek_time_closest(LttvTracesetState *self, LttTime t) |
| 989 | { |
| 990 | LttvTraceset *traceset = self->parent.ts; |
| 991 | |
| 992 | guint i, j, nb_trace, nb_saved_state; |
| 993 | |
| 994 | int min_pos, mid_pos, max_pos; |
| 995 | |
| 996 | LttvTraceState *tcs; |
| 997 | |
| 998 | LttvAttributeValue value; |
| 999 | |
| 1000 | LttvAttributeType type; |
| 1001 | |
| 1002 | LttvAttributeName name; |
| 1003 | |
| 1004 | LttvAttribute *saved_states_tree, *saved_state_tree, *closest_tree; |
| 1005 | |
| 1006 | nb_trace = lttv_traceset_number(traceset); |
| 1007 | for(i = 0 ; i < nb_trace ; i++) { |
| 1008 | tcs = (LttvTraceState *)self->parent.traces[i]; |
| 1009 | |
| 1010 | if(tcs->recompute_state_in_seek) { |
| 1011 | if(tcs->saved_state_available) { |
| 1012 | saved_states_tree = lttv_attribute_find_subdir(tcs->parent.t_a, |
| 1013 | LTTV_STATE_SAVED_STATES); |
| 1014 | min_pos = -1; |
| 1015 | max_pos = lttv_attribute_get_number(saved_states_tree) - 1; |
| 1016 | mid_pos = max_pos / 2; |
| 1017 | while(min_pos < max_pos) { |
| 1018 | type = lttv_attribute_get(saved_states_tree, mid_pos, &name, &value); |
| 1019 | g_assert(type == LTTV_GOBJECT); |
| 1020 | saved_state_tree = *((LttvAttribute **)(value.v_gobject)); |
| 1021 | type = lttv_attribute_get_by_name(saved_state_tree, LTTV_STATE_TIME, |
| 1022 | &value); |
| 1023 | g_assert(type == LTTV_TIME); |
| 1024 | if(ltt_time_compare(*(value.v_time), t) < 0) { |
| 1025 | min_pos = mid_pos; |
| 1026 | closest_tree = saved_state_tree; |
| 1027 | } |
| 1028 | else max_pos = mid_pos - 1; |
| 1029 | |
| 1030 | mid_pos = (min_pos + max_pos + 1) / 2; |
| 1031 | } |
| 1032 | |
| 1033 | /* restore the closest earlier saved state */ |
| 1034 | if(min_pos != -1) lttv_state_restore(tcs, closest_tree); |
| 1035 | |
| 1036 | /* there is no earlier saved state, restart at T0 */ |
| 1037 | else { |
| 1038 | restore_init_state(tcs); |
| 1039 | lttv_process_trace_seek_time(&(tcs->parent), ltt_time_zero); |
| 1040 | } |
| 1041 | |
| 1042 | /* There is no saved state yet we want to have it. Restart at T0 */ |
| 1043 | else { |
| 1044 | restore_init_state(tcs); |
| 1045 | lttv_process_trace_seek_time(&(tcs->parent), ltt_time_zero); |
| 1046 | } |
| 1047 | |
| 1048 | /* We want to seek quickly without restoring/updating the state */ |
| 1049 | else { |
| 1050 | restore_init_state(tcs); |
| 1051 | lttv_process_trace_seek_time(&(tcs->parent), t); |
| 1052 | } |
| 1053 | } |
| 1054 | } |
| 1055 | |
| 1056 | |
| 1057 | static void |
| 1058 | traceset_state_instance_init (GTypeInstance *instance, gpointer g_class) |
| 1059 | { |
| 1060 | } |
| 1061 | |
| 1062 | |
| 1063 | static void |
| 1064 | traceset_state_finalize (LttvTracesetState *self) |
| 1065 | { |
| 1066 | G_OBJECT_CLASS(g_type_class_peek(LTTV_TRACESET_CONTEXT_TYPE))-> |
| 1067 | finalize(G_OBJECT(self)); |
| 1068 | } |
| 1069 | |
| 1070 | |
| 1071 | static void |
| 1072 | traceset_state_class_init (LttvTracesetContextClass *klass) |
| 1073 | { |
| 1074 | GObjectClass *gobject_class = G_OBJECT_CLASS(klass); |
| 1075 | |
| 1076 | gobject_class->finalize = (void (*)(GObject *self)) traceset_state_finalize; |
| 1077 | klass->init = (void (*)(LttvTracesetContext *self, LttvTraceset *ts))init; |
| 1078 | klass->fini = (void (*)(LttvTracesetContext *self))fini; |
| 1079 | klass->new_traceset_context = new_traceset_context; |
| 1080 | klass->new_trace_context = new_trace_context; |
| 1081 | klass->new_tracefile_context = new_tracefile_context; |
| 1082 | } |
| 1083 | |
| 1084 | |
| 1085 | GType |
| 1086 | lttv_traceset_state_get_type(void) |
| 1087 | { |
| 1088 | static GType type = 0; |
| 1089 | if (type == 0) { |
| 1090 | static const GTypeInfo info = { |
| 1091 | sizeof (LttvTracesetStateClass), |
| 1092 | NULL, /* base_init */ |
| 1093 | NULL, /* base_finalize */ |
| 1094 | (GClassInitFunc) traceset_state_class_init, /* class_init */ |
| 1095 | NULL, /* class_finalize */ |
| 1096 | NULL, /* class_data */ |
| 1097 | sizeof (LttvTracesetContext), |
| 1098 | 0, /* n_preallocs */ |
| 1099 | (GInstanceInitFunc) traceset_state_instance_init /* instance_init */ |
| 1100 | }; |
| 1101 | |
| 1102 | type = g_type_register_static (LTTV_TRACESET_CONTEXT_TYPE, "LttvTracesetStateType", |
| 1103 | &info, 0); |
| 1104 | } |
| 1105 | return type; |
| 1106 | } |
| 1107 | |
| 1108 | |
| 1109 | static void |
| 1110 | trace_state_instance_init (GTypeInstance *instance, gpointer g_class) |
| 1111 | { |
| 1112 | } |
| 1113 | |
| 1114 | |
| 1115 | static void |
| 1116 | trace_state_finalize (LttvTraceState *self) |
| 1117 | { |
| 1118 | G_OBJECT_CLASS(g_type_class_peek(LTTV_TRACE_CONTEXT_TYPE))-> |
| 1119 | finalize(G_OBJECT(self)); |
| 1120 | } |
| 1121 | |
| 1122 | |
| 1123 | static void |
| 1124 | trace_state_class_init (LttvTraceStateClass *klass) |
| 1125 | { |
| 1126 | GObjectClass *gobject_class = G_OBJECT_CLASS(klass); |
| 1127 | |
| 1128 | gobject_class->finalize = (void (*)(GObject *self)) trace_state_finalize; |
| 1129 | klass->state_save = state_save; |
| 1130 | klass->state_restore = state_restore; |
| 1131 | klass->state_saved_free = state_saved_free; |
| 1132 | } |
| 1133 | |
| 1134 | |
| 1135 | GType |
| 1136 | lttv_trace_state_get_type(void) |
| 1137 | { |
| 1138 | static GType type = 0; |
| 1139 | if (type == 0) { |
| 1140 | static const GTypeInfo info = { |
| 1141 | sizeof (LttvTraceStateClass), |
| 1142 | NULL, /* base_init */ |
| 1143 | NULL, /* base_finalize */ |
| 1144 | (GClassInitFunc) trace_state_class_init, /* class_init */ |
| 1145 | NULL, /* class_finalize */ |
| 1146 | NULL, /* class_data */ |
| 1147 | sizeof (LttvTraceState), |
| 1148 | 0, /* n_preallocs */ |
| 1149 | (GInstanceInitFunc) trace_state_instance_init /* instance_init */ |
| 1150 | }; |
| 1151 | |
| 1152 | type = g_type_register_static (LTTV_TRACE_CONTEXT_TYPE, |
| 1153 | "LttvTraceStateType", &info, 0); |
| 1154 | } |
| 1155 | return type; |
| 1156 | } |
| 1157 | |
| 1158 | |
| 1159 | static void |
| 1160 | tracefile_state_instance_init (GTypeInstance *instance, gpointer g_class) |
| 1161 | { |
| 1162 | } |
| 1163 | |
| 1164 | |
| 1165 | static void |
| 1166 | tracefile_state_finalize (LttvTracefileState *self) |
| 1167 | { |
| 1168 | G_OBJECT_CLASS(g_type_class_peek(LTTV_TRACEFILE_CONTEXT_TYPE))-> |
| 1169 | finalize(G_OBJECT(self)); |
| 1170 | } |
| 1171 | |
| 1172 | |
| 1173 | static void |
| 1174 | tracefile_state_class_init (LttvTracefileStateClass *klass) |
| 1175 | { |
| 1176 | GObjectClass *gobject_class = G_OBJECT_CLASS(klass); |
| 1177 | |
| 1178 | gobject_class->finalize = (void (*)(GObject *self)) tracefile_state_finalize; |
| 1179 | } |
| 1180 | |
| 1181 | |
| 1182 | GType |
| 1183 | lttv_tracefile_state_get_type(void) |
| 1184 | { |
| 1185 | static GType type = 0; |
| 1186 | if (type == 0) { |
| 1187 | static const GTypeInfo info = { |
| 1188 | sizeof (LttvTracefileStateClass), |
| 1189 | NULL, /* base_init */ |
| 1190 | NULL, /* base_finalize */ |
| 1191 | (GClassInitFunc) tracefile_state_class_init, /* class_init */ |
| 1192 | NULL, /* class_finalize */ |
| 1193 | NULL, /* class_data */ |
| 1194 | sizeof (LttvTracefileState), |
| 1195 | 0, /* n_preallocs */ |
| 1196 | (GInstanceInitFunc) tracefile_state_instance_init /* instance_init */ |
| 1197 | }; |
| 1198 | |
| 1199 | type = g_type_register_static (LTTV_TRACEFILE_CONTEXT_TYPE, |
| 1200 | "LttvTracefileStateType", &info, 0); |
| 1201 | } |
| 1202 | return type; |
| 1203 | } |
| 1204 | |
| 1205 | |
| 1206 | void lttv_state_init(int argc, char **argv) |
| 1207 | { |
| 1208 | LTTV_STATE_UNNAMED = g_quark_from_string("unnamed"); |
| 1209 | LTTV_STATE_MODE_UNKNOWN = g_quark_from_string("unknown execution mode"); |
| 1210 | LTTV_STATE_USER_MODE = g_quark_from_string("user mode"); |
| 1211 | LTTV_STATE_WAIT_FORK = g_quark_from_string("wait fork"); |
| 1212 | LTTV_STATE_SYSCALL = g_quark_from_string("system call"); |
| 1213 | LTTV_STATE_TRAP = g_quark_from_string("trap"); |
| 1214 | LTTV_STATE_IRQ = g_quark_from_string("irq"); |
| 1215 | LTTV_STATE_SUBMODE_UNKNOWN = g_quark_from_string("unknown submode"); |
| 1216 | LTTV_STATE_SUBMODE_NONE = g_quark_from_string("(no submode)"); |
| 1217 | LTTV_STATE_WAIT_CPU = g_quark_from_string("wait for cpu"); |
| 1218 | LTTV_STATE_EXIT = g_quark_from_string("exiting"); |
| 1219 | LTTV_STATE_WAIT = g_quark_from_string("wait for I/O"); |
| 1220 | LTTV_STATE_RUN = g_quark_from_string("running"); |
| 1221 | LTTV_STATE_TRACEFILES = g_quark_from_string("tracefiles"); |
| 1222 | LTTV_STATE_PROCESSES = g_quark_from_string("processes"); |
| 1223 | LTTV_STATE_PROCESS = g_quark_from_string("process"); |
| 1224 | LTTV_STATE_EVENT = g_quark_from_string("event"); |
| 1225 | LTTV_STATE_SAVED_STATES = g_quark_from_string("saved states"); |
| 1226 | LTTV_STATE_TIME = g_quark_from_string("time"); |
| 1227 | LTTV_STATE_HOOKS = g_quark_from_string("saved state hooks"); |
| 1228 | } |
| 1229 | |
| 1230 | void lttv_state_destroy() |
| 1231 | { |
| 1232 | } |
| 1233 | |
| 1234 | |
| 1235 | |
| 1236 | |