projects / lttv.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
Update FSF address
[lttv.git] / lttv / lttv / state.c
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., 51 Franklin Street, Fifth Floor, Boston,
16 * MA 02110-1301, USA.
17 */
18
19 #define _GNU_SOURCE
20 #ifdef HAVE_CONFIG_H
21 #include <config.h>
22 #endif
23
24 #include <glib.h>
25 #include <lttv/lttv.h>
26 #include <lttv/module.h>
27 #include <lttv/state.h>
28 #include <lttv/compiler.h>
29 #include <lttv/traceset.h>
30 #include <lttv/traceset-process.h>
31 #include <lttv/trace.h>
32 #include <stdio.h>
33 #include <string.h>
34 #include <inttypes.h>
35 #include <babeltrace/babeltrace.h>
36
37 #define PREALLOCATED_EXECUTION_STACK 10
38
39 /* Channel Quarks */
40
41 GQuark
42 LTT_CHANNEL_FD_STATE,
43 LTT_CHANNEL_GLOBAL_STATE,
44 LTT_CHANNEL_IRQ_STATE,
45 LTT_CHANNEL_MODULE_STATE,
46 LTT_CHANNEL_NETIF_STATE,
47 LTT_CHANNEL_SOFTIRQ_STATE,
48 LTT_CHANNEL_SWAP_STATE,
49 LTT_CHANNEL_SYSCALL_STATE,
50 LTT_CHANNEL_TASK_STATE,
51 LTT_CHANNEL_VM_STATE,
52 LTT_CHANNEL_KPROBE_STATE,
53 LTT_CHANNEL_FS,
54 LTT_CHANNEL_KERNEL,
55 LTT_CHANNEL_MM,
56 LTT_CHANNEL_USERSPACE,
57 LTT_CHANNEL_BLOCK;
58
59 /* Events Quarks */
60
61 GQuark
62 LTT_EVENT_SYSCALL_ENTRY,
63 LTT_EVENT_SYSCALL_EXIT,
64 LTT_EVENT_PAGE_FAULT_NOSEM_ENTRY,
65 LTT_EVENT_PAGE_FAULT_NOSEM_EXIT,
66 LTT_EVENT_PAGE_FAULT_ENTRY,
67 LTT_EVENT_PAGE_FAULT_EXIT,
68 //LTT_EVENT_TRAP_ENTRY,
69 //LTT_EVENT_TRAP_EXIT,
70 LTT_EVENT_IRQ_ENTRY,
71 LTT_EVENT_IRQ_EXIT,
72 LTT_EVENT_SOFT_IRQ_RAISE,
73 LTT_EVENT_SOFT_IRQ_ENTRY,
74 LTT_EVENT_SOFT_IRQ_EXIT,
75 LTT_EVENT_SCHED_SCHEDULE,
76 LTT_EVENT_SCHED_TRY_WAKEUP,
77 LTT_EVENT_PROCESS_FORK,
78 LTT_EVENT_KTHREAD_CREATE,
79 LTT_EVENT_PROCESS_EXIT,
80 LTT_EVENT_PROCESS_FREE,
81 LTT_EVENT_EXEC,
82 LTT_EVENT_PROCESS_STATE,
83 LTT_EVENT_STATEDUMP_END,
84 LTT_EVENT_FUNCTION_ENTRY,
85 LTT_EVENT_FUNCTION_EXIT,
86 LTT_EVENT_REQUEST_ISSUE,
87 LTT_EVENT_REQUEST_COMPLETE,
88 LTT_EVENT_LIST_INTERRUPT,
89 LTT_EVENT_SYS_CALL_TABLE,
90 LTT_EVENT_SOFTIRQ_VEC,
91 LTT_EVENT_KPROBE_TABLE,
92 LTT_EVENT_KPROBE,
93 LTT_EVENT_OPEN,
94 LTT_EVENT_READ,
95 LTT_EVENT_POLL_EVENT;
96
97 /* Fields Quarks */
98
99 GQuark
100 LTT_FIELD_SYSCALL_ID,
101 LTT_FIELD_TRAP_ID,
102 LTT_FIELD_IRQ_ID,
103 LTT_FIELD_SOFT_IRQ_ID,
104 LTT_FIELD_PREV_PID,
105 LTT_FIELD_NEXT_PID,
106 LTT_FIELD_PREV_STATE,
107 LTT_FIELD_PARENT_PID,
108 LTT_FIELD_CHILD_PID,
109 LTT_FIELD_PID,
110 LTT_FIELD_TGID,
111 LTT_FIELD_CHILD_TGID,
112 LTT_FIELD_FILENAME,
113 LTT_FIELD_NAME,
114 LTT_FIELD_TYPE,
115 LTT_FIELD_MODE,
116 LTT_FIELD_SUBMODE,
117 LTT_FIELD_STATUS,
118 LTT_FIELD_THIS_FN,
119 LTT_FIELD_CALL_SITE,
120 LTT_FIELD_MINOR,
121 LTT_FIELD_MAJOR,
122 LTT_FIELD_OPERATION,
123 LTT_FIELD_ACTION,
124 LTT_FIELD_ID,
125 LTT_FIELD_ADDRESS,
126 LTT_FIELD_SYMBOL,
127 LTT_FIELD_IP,
128 LTT_FIELD_FD,
129 LTT_FIELD_STATE,
130 LTT_FIELD_CPU_ID;
131
132 LttvExecutionMode
133 LTTV_STATE_MODE_UNKNOWN,
134 LTTV_STATE_USER_MODE,
135 LTTV_STATE_MAYBE_USER_MODE,
136 LTTV_STATE_SYSCALL,
137 LTTV_STATE_MAYBE_SYSCALL,
138 LTTV_STATE_TRAP,
139 LTTV_STATE_MAYBE_TRAP,
140 LTTV_STATE_IRQ,
141 LTTV_STATE_SOFT_IRQ;
142
143 LttvExecutionSubmode
144 LTTV_STATE_SUBMODE_UNKNOWN,
145 LTTV_STATE_SUBMODE_NONE;
146
147 LttvProcessStatus
148 LTTV_STATE_UNNAMED,
149 LTTV_STATE_WAIT_FORK,
150 LTTV_STATE_WAIT_CPU,
151 LTTV_STATE_EXIT,
152 LTTV_STATE_ZOMBIE,
153 LTTV_STATE_WAIT,
154 LTTV_STATE_RUN,
155 LTTV_STATE_DEAD;
156
157 LttvProcessType
158 LTTV_STATE_USER_THREAD,
159 LTTV_STATE_KERNEL_THREAD;
160
161 LttvCPUMode
162 LTTV_CPU_UNKNOWN,
163 LTTV_CPU_IDLE,
164 LTTV_CPU_BUSY,
165 LTTV_CPU_IRQ,
166 LTTV_CPU_SOFT_IRQ,
167 LTTV_CPU_TRAP;
168
169 LttvIRQMode
170 LTTV_IRQ_UNKNOWN,
171 LTTV_IRQ_IDLE,
172 LTTV_IRQ_BUSY;
173
174 LttvBdevMode
175 LTTV_BDEV_UNKNOWN,
176 LTTV_BDEV_IDLE,
177 LTTV_BDEV_BUSY_READING,
178 LTTV_BDEV_BUSY_WRITING;
179
180 static GQuark
181 LTTV_STATE_TRACEFILES,
182 LTTV_STATE_PROCESSES,
183 LTTV_STATE_PROCESS,
184 LTTV_STATE_RUNNING_PROCESS,
185 LTTV_STATE_POSITION,
186 LTTV_STATE_SAVED_STATES,
187 LTTV_STATE_SAVED_STATES_TIME,
188 LTTV_STATE_TIME,
189 LTTV_STATE_HOOKS,
190 LTTV_STATE_NAME_TABLES,
191 LTTV_STATE_TRACE_STATE_USE_COUNT,
192 LTTV_STATE_RESOURCE_CPUS,
193 LTTV_STATE_RESOURCE_CPUS_COUNT,
194 LTTV_STATE_RESOURCE_IRQS,
195 LTTV_STATE_RESOURCE_SOFT_IRQS,
196 LTTV_STATE_RESOURCE_TRAPS,
197 LTTV_STATE_RESOURCE_BLKDEVS;
198
199 static void create_max_time(LttvTraceState *tcs);
200
201 static void get_max_time(LttvTraceState *tcs);
202
203 static void free_max_time(LttvTraceState *tcs);
204
205 static void create_name_tables(LttvTraceState *tcs);
206
207 static void get_name_tables(LttvTraceState *tcs);
208
209 static void free_name_tables(LttvTraceState *tcs);
210
211 static void free_saved_state(LttvTraceState *tcs);
212
213 static void lttv_state_free_process_table(GHashTable *processes);
214 #ifdef BABEL_CLEANUP
215 static void lttv_trace_states_read_raw(LttvTraceState *tcs, FILE *fp,
216 GPtrArray *quarktable);
217 #endif
218 /* Resource function prototypes */
219 #ifdef BABEL_CLEANUP
220 static LttvBdevState *get_hashed_bdevstate(LttvTraceState *ts, guint32 devcode);
221 static LttvBdevState *bdevstate_new(void);
222 static void bdevstate_free(LttvBdevState *);
223 static void bdevstate_free_cb(gpointer key, gpointer value, gpointer user_data);
224 static LttvBdevState *bdevstate_copy(LttvBdevState *bds);
225 #endif
226 void lttv_state_add_event_hooks(LttvTraceset *traceset);
227
228 #if (__WORDSIZE == 32)
229 guint guint64_hash(gconstpointer key)
230 {
231 guint64 ukey = *(const guint64 *)key;
232
233 return (guint)ukey ^ (guint)(ukey >> 32);
234 }
235
236 gboolean guint64_equal(gconstpointer a, gconstpointer b)
237 {
238 guint64 ua = *(const guint64 *)a;
239 guint64 ub = *(const guint64 *)b;
240
241 return ua == ub;
242 }
243 #endif
244
245 guint process_hash(gconstpointer key)
246 {
247 guint pid = ((const LttvProcessState *)key)->pid;
248 return (pid>>8 ^ pid>>4 ^ pid>>2 ^ pid) ;
249 }
250
251
252 /* If the hash table hash function is well distributed,
253 * the process_equal should compare different pid */
254 gboolean process_equal(gconstpointer a, gconstpointer b)
255 {
256 const LttvProcessState *process_a, *process_b;
257 gboolean ret = TRUE;
258
259 process_a = (const LttvProcessState *)a;
260 process_b = (const LttvProcessState *)b;
261
262 if(likely(process_a->pid != process_b->pid)) ret = FALSE;
263 else if(likely(process_a->pid == 0 &&
264 process_a->cpu != process_b->cpu)) ret = FALSE;
265
266 return ret;
267 }
268
269 gboolean rettrue(gpointer key, gpointer value, gpointer user_data)
270 {
271 return TRUE;
272 }
273
274 static guint check_expand(nb, id)
275 {
276 if(likely(nb > id))
277 return nb;
278 else
279 return max(id + 1, nb * 2);
280 }
281
282 static void expand_name_table(LttvTraceState *ts, GQuark **table,
283 guint nb, guint new_nb)
284 {
285 /* Expand an incomplete table */
286 GQuark *old_table = *table;
287 *table = g_new(GQuark, new_nb);
288 memcpy(*table, old_table, nb * sizeof(GQuark));
289 g_free(old_table);
290 }
291
292 static void fill_name_table(LttvTraceState *ts, GQuark *table, guint nb,
293 guint new_nb, const char *def_string)
294 {
295 guint i;
296 GString *fe_name = g_string_new("");
297 for(i = nb; i < new_nb; i++) {
298 g_string_printf(fe_name, "%s %d", def_string, i);
299 table[i] = g_quark_from_string(fe_name->str);
300 }
301 g_string_free(fe_name, TRUE);
302 }
303 #ifdef BABEL_CLEANUP
304 static void expand_kprobe_table(LttvTraceState *ts, guint64 ip, char *symbol)
305 {
306 LttvNameTables *nt = ts->name_tables;
307 #if (__WORDSIZE == 32)
308 guint64 *ip_ptr = g_new(guint64, 1);
309 g_hash_table_insert(nt->kprobe_hash, ip_ptr,
310 (gpointer)(glong)g_quark_from_string(symbol));
311 #else
312 g_hash_table_insert(nt->kprobe_hash, (gpointer)ip,
313 (gpointer)(glong)g_quark_from_string(symbol));
314 #endif
315 }
316
317 static void expand_trap_table(LttvTraceState *ts, int id)
318 {
319 LttvNameTables *nt = ts->name_tables;
320 LttvTrapState *old_table;
321 guint new_nb, i;
322
323 new_nb = check_expand(nt->nb_traps, id);
324 if(likely(new_nb == nt->nb_traps))
325 return;
326
327 expand_name_table(ts, &nt->trap_names, nt->nb_traps, new_nb);
328 fill_name_table(ts, nt->trap_names, nt->nb_traps, new_nb, "trap");
329
330 old_table = ts->trap_states;
331 ts->trap_states = g_new(LttvTrapState, new_nb);
332 memcpy(ts->trap_states, old_table, nt->nb_traps * sizeof(LttvTrapState));
333 g_free(old_table);
334 for(i = nt->nb_traps; i < new_nb; i++)
335 ts->trap_states[i].running = 0;
336
337 /* Update the table size */
338 nt->nb_traps = new_nb;
339 }
340 #endif
341 static void expand_irq_table(LttvTraceState *ts, int id)
342 {
343 LttvNameTables *nt = ts->name_tables;
344 LttvIRQState *old_table;
345 guint new_nb, i;
346
347 new_nb = check_expand(nt->nb_irqs, id);
348 if(likely(new_nb == nt->nb_irqs))
349 return;
350
351 expand_name_table(ts, &nt->irq_names, nt->nb_irqs, new_nb);
352 fill_name_table(ts, nt->irq_names, nt->nb_irqs, new_nb, "irq");
353
354 old_table = ts->irq_states;
355 ts->irq_states = g_new(LttvIRQState, new_nb);
356 memcpy(ts->irq_states, old_table, nt->nb_irqs * sizeof(LttvIRQState));
357 g_free(old_table);
358 for(i = nt->nb_irqs; i < new_nb; i++)
359 ts->irq_states[i].mode_stack =
360 g_array_new(FALSE, FALSE, sizeof(LttvIRQMode));
361
362 /* Update the table size */
363 nt->nb_irqs = new_nb;
364 }
365
366 static void expand_soft_irq_table(LttvTraceState *ts, int id)
367 {
368 LttvNameTables *nt = ts->name_tables;
369 LttvSoftIRQState *old_table;
370 guint new_nb, i;
371
372 new_nb = check_expand(nt->nb_soft_irqs, id);
373 if(likely(new_nb == nt->nb_soft_irqs))
374 return;
375
376 expand_name_table(ts, &nt->soft_irq_names, nt->nb_soft_irqs, new_nb);
377 fill_name_table(ts, nt->soft_irq_names, nt->nb_soft_irqs, new_nb, "softirq");
378
379 old_table = ts->soft_irq_states;
380 ts->soft_irq_states = g_new(LttvSoftIRQState, new_nb);
381 memcpy(ts->soft_irq_states, old_table,
382 nt->nb_soft_irqs * sizeof(LttvSoftIRQState));
383 g_free(old_table);
384 for(i = nt->nb_soft_irqs; i < new_nb; i++)
385 ts->soft_irq_states[i].running = 0;
386
387 /* Update the table size */
388 nt->nb_soft_irqs = new_nb;
389 }
390
391 static void restore_init_state(LttvTraceState *self)
392 {
393 guint i, nb_cpus, nb_irqs, nb_soft_irqs, nb_traps;
394
395 //LttvTracefileState *tfcs;
396
397 LttTime start_time;
398
399 /* Free the process tables */
400 if(self->processes != NULL) lttv_state_free_process_table(self->processes);
401 self->processes = g_hash_table_new(process_hash, process_equal);
402 self->nb_event = 0;
403
404 /* Seek time to beginning */
405 // Mathieu : fix : don't seek traceset here : causes inconsistency in seek
406 // closest. It's the tracecontext job to seek the trace to the beginning
407 // anyway : the init state might be used at the middle of the trace as well...
408 //g_tree_destroy(self->parent.ts_context->pqueue);
409 //self->parent.ts_context->pqueue = g_tree_new(compare_tracefile);
410
411 start_time = ltt_time_from_uint64(
412 bt_trace_handle_get_timestamp_begin(self->trace->traceset->context,
413 self->trace->id,BT_CLOCK_REAL));
414
415
416 //lttv_process_trace_seek_time(&self->parent, ltt_time_zero);
417
418 nb_cpus = lttv_trace_get_num_cpu(self->trace);
419 nb_irqs = self->name_tables->nb_irqs;
420 nb_soft_irqs = self->name_tables->nb_soft_irqs;
421 nb_traps = self->name_tables->nb_traps;
422
423 /* Put the per cpu running_process to beginning state : process 0. */
424 for(i=0; i< nb_cpus; i++) {
425 LttvExecutionState *es;
426 self->running_process[i] = lttv_state_create_process(self, NULL, i, 0, 0,
427 LTTV_STATE_UNNAMED, &start_time);
428 /* We are not sure is it's a kernel thread or normal thread, put the
429 * bottom stack state to unknown */
430 self->running_process[i]->execution_stack =
431 g_array_set_size(self->running_process[i]->execution_stack, 1);
432 es = self->running_process[i]->state =
433 &g_array_index(self->running_process[i]->execution_stack,
434 LttvExecutionState, 0);
435 es->t = LTTV_STATE_MODE_UNKNOWN;
436 es->s = LTTV_STATE_UNNAMED;
437
438 //self->running_process[i]->state->s = LTTV_STATE_RUN;
439 self->running_process[i]->cpu = i;
440
441 /* reset cpu states */
442 if(self->cpu_states[i].mode_stack->len > 0) {
443 g_array_remove_range(self->cpu_states[i].mode_stack, 0,
444 self->cpu_states[i].mode_stack->len);
445 if(self->cpu_states[i].irq_stack->len)
446 g_array_remove_range(self->cpu_states[i].irq_stack, 0,
447 self->cpu_states[i].irq_stack->len);
448 if(self->cpu_states[i].softirq_stack->len)
449 g_array_remove_range(self->cpu_states[i].softirq_stack, 0,
450 self->cpu_states[i].softirq_stack->len);
451 if(self->cpu_states[i].trap_stack->len)
452 g_array_remove_range(self->cpu_states[i].trap_stack, 0,
453 self->cpu_states[i].trap_stack->len);
454 }
455 }
456
457 /* reset irq states */
458 for(i=0; i<nb_irqs; i++) {
459 if(self->irq_states[i].mode_stack->len > 0)
460 g_array_remove_range(self->irq_states[i].mode_stack, 0,
461 self->irq_states[i].mode_stack->len);
462 }
463
464 /* reset softirq states */
465 for(i=0; i<nb_soft_irqs; i++) {
466 self->soft_irq_states[i].pending = 0;
467 self->soft_irq_states[i].running = 0;
468 }
469
470 /* reset trap states */
471 for(i=0; i<nb_traps; i++) {
472 self->trap_states[i].running = 0;
473 }
474
475 #ifdef BABEL_CLEANUP
476 /* reset bdev states */
477 g_hash_table_foreach(self->bdev_states, bdevstate_free_cb, NULL);
478 //g_hash_table_steal_all(self->bdev_states);
479 g_hash_table_foreach_steal(self->bdev_states, rettrue, NULL);
480 #endif
481
482 #if 0
483 nb_tracefile = self->parent.tracefiles->len;
484
485 for(i = 0 ; i < nb_tracefile ; i++) {
486 tfcs =
487 LTTV_TRACEFILE_STATE(g_array_index(self->parent.tracefiles,
488 LttvTracefileContext*, i));
489 ltt_trace_time_span_get(self->parent.t, &tfcs->parent.timestamp, NULL);
490 // tfcs->saved_position = 0;
491 tfcs->process = lttv_state_create_process(tfcs, NULL,0);
492 tfcs->process->state->s = LTTV_STATE_RUN;
493 tfcs->process->last_cpu = tfcs->cpu_name;
494 tfcs->process->last_cpu_index = ltt_tracefile_num(((LttvTracefileContext*)tfcs)->tf);
495 }
496 #endif //0
497 }
498
499 //static LttTime time_zero = {0,0};
500
501 #ifdef BABEL_CLEANUP
502
503 #define MAX_STRING_LEN 4096
504
505 static void state_load_saved_states(LttvTraceState *tcs)
506 {
507 FILE *fp;
508 GPtrArray *quarktable;
509 const char *trace_path;
510 char path[PATH_MAX];
511 guint count;
512 guint i;
513 tcs->has_precomputed_states = FALSE;
514 GQuark q;
515 gchar *string;
516 gint hdr;
517 gchar buf[MAX_STRING_LEN];
518 guint len;
519 size_t res;
520
521 trace_path = g_quark_to_string(ltt_trace_name(tcs->parent.t));
522 strncpy(path, trace_path, PATH_MAX-1);
523 count = strnlen(trace_path, PATH_MAX-1);
524 // quarktable : open, test
525 strncat(path, "/precomputed/quarktable", PATH_MAX-count-1);
526 fp = fopen(path, "r");
527 if(!fp) return;
528 quarktable = g_ptr_array_sized_new(4096);
529
530 /* Index 0 is null */
531 hdr = fgetc(fp);
532 if(hdr == EOF) return;
533 g_assert(hdr == HDR_QUARKS);
534 q = 1;
535 do {
536 hdr = fgetc(fp);
537 if(hdr == EOF) break;
538 g_assert(hdr == HDR_QUARK);
539 g_ptr_array_set_size(quarktable, q+1);
540 i=0;
541 while(1) {
542 res = fread(&buf[i], sizeof(gchar), 1, fp);
543 g_assert(res == 1);
544 if(buf[i] == '\0' || feof(fp)) break;
545 i++;
546 }
547 len = strnlen(buf, MAX_STRING_LEN-1);
548 g_ptr_array_index (quarktable, q) = g_new(gchar, len+1);
549 strncpy(g_ptr_array_index (quarktable, q), buf, len+1);
550 q++;
551 } while(1);
552
553 fclose(fp);
554
555 // saved_states : open, test
556 strncpy(path, trace_path, PATH_MAX-1);
557 count = strnlen(trace_path, PATH_MAX-1);
558 strncat(path, "/precomputed/states", PATH_MAX-count-1);
559 fp = fopen(path, "r");
560 if(!fp) return;
561
562 hdr = fgetc(fp);
563 if(hdr != HDR_TRACE) goto end;
564
565 lttv_trace_states_read_raw(tcs, fp, quarktable);
566
567 tcs->has_precomputed_states = TRUE;
568
569 end:
570 fclose(fp);
571
572 /* Free the quarktable */
573 for(i=0; i<quarktable->len; i++) {
574 string = g_ptr_array_index (quarktable, i);
575 g_free(string);
576 }
577 g_ptr_array_free(quarktable, TRUE);
578 return;
579 }
580 #endif /* BABEL_CLEANUP */
581
582 void lttv_trace_state_init(LttvTraceState *trace_state, LttvTrace *trace)
583 {
584 guint j, nb_cpu;
585 guint64 nb_irq;
586 LttvAttributeValue v;
587
588 trace_state->trace = trace;
589
590 trace_state->save_interval = LTTV_STATE_SAVE_INTERVAL;
591 lttv_attribute_find(lttv_trace_attribute(trace), LTTV_STATE_TRACE_STATE_USE_COUNT,
592 LTTV_UINT, &v);
593 (*v.v_uint)++;
594
595 if (*(v.v_uint) == 1) {
596 create_name_tables(trace_state);
597 create_max_time(trace_state);
598 }
599 get_name_tables(trace_state);
600 get_max_time(trace_state);
601
602 nb_cpu = lttv_trace_get_num_cpu(trace);
603 nb_irq = trace_state->name_tables->nb_irqs;
604 trace_state->processes = NULL;
605 trace_state->running_process = g_new(LttvProcessState*, nb_cpu);
606
607 /* init cpu resource stuff */
608 trace_state->cpu_states = g_new(LttvCPUState, nb_cpu);
609 for (j = 0; j < nb_cpu; j++) {
610 trace_state->cpu_states[j].mode_stack = g_array_new(FALSE, FALSE, sizeof(LttvCPUMode));
611 trace_state->cpu_states[j].irq_stack = g_array_new(FALSE, FALSE, sizeof(gint));
612 trace_state->cpu_states[j].softirq_stack = g_array_new(FALSE, FALSE, sizeof(gint));
613 trace_state->cpu_states[j].trap_stack = g_array_new(FALSE, FALSE, sizeof(gint));
614 g_assert(trace_state->cpu_states[j].mode_stack != NULL);
615 }
616
617 /* init irq resource stuff */
618 trace_state->irq_states = g_new(LttvIRQState, nb_irq);
619 for (j = 0; j < nb_irq; j++) {
620 trace_state->irq_states[j].mode_stack = g_array_new(FALSE, FALSE, sizeof(LttvIRQMode));
621 g_assert(trace_state->irq_states[j].mode_stack != NULL);
622 }
623
624 /* init soft irq stuff */
625 /* the kernel has a statically fixed max of 32 softirqs */
626 trace_state->soft_irq_states = g_new(LttvSoftIRQState, trace_state->name_tables->nb_soft_irqs);
627
628 /* init trap stuff */
629 trace_state->trap_states = g_new(LttvTrapState, trace_state->name_tables->nb_traps);
630
631 /* init bdev resource stuff */
632 trace_state->bdev_states = g_hash_table_new(g_int_hash, g_int_equal);
633
634 restore_init_state(trace_state);
635
636 /* See if the trace has saved states */
637 //state_load_saved_states(trace_state);
638 }
639
640 void lttv_trace_state_fini(LttvTraceState *trace_state)
641 {
642 LttvTrace *trace = trace_state->trace;
643 LttvAttributeValue v;
644
645 lttv_attribute_find(lttv_trace_attribute(trace), LTTV_STATE_TRACE_STATE_USE_COUNT,
646 LTTV_UINT, &v);
647
648 g_assert(*(v.v_uint) != 0);
649 (*v.v_uint)--;
650
651 if (*(v.v_uint) == 0) {
652 free_name_tables(trace_state);
653 free_max_time(trace_state);
654 free_saved_state(trace_state);
655 }
656 g_free(trace_state->running_process);
657 trace_state->running_process = NULL;
658 lttv_state_free_process_table(trace_state->processes);
659 trace_state->processes = NULL;
660 }
661
662 #ifdef BABEL_CLEANUP
663
664 /* Write the process state of the trace */
665
666 static void write_process_state(gpointer key, gpointer value,
667 gpointer user_data)
668 {
669 LttvProcessState *process;
670
671 LttvExecutionState *es;
672
673 FILE *fp = (FILE *)user_data;
674
675 guint i;
676 guint64 address;
677
678 process = (LttvProcessState *)value;
679 fprintf(fp," <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\" CPU=\"%u\" FREE_EVENTS=\"%u\">\n",
680 process, process->pid, process->tgid, process->ppid,
681 g_quark_to_string(process->type),
682 process->creation_time.tv_sec,
683 process->creation_time.tv_nsec,
684 process->insertion_time.tv_sec,
685 process->insertion_time.tv_nsec,
686 g_quark_to_string(process->name),
687 process->cpu, process->free_events);
688
689 for(i = 0 ; i < process->execution_stack->len; i++) {
690 es = &g_array_index(process->execution_stack, LttvExecutionState, i);
691 fprintf(fp, " <ES MODE=\"%s\" SUBMODE=\"%s\" ENTRY_S=%lu ENTRY_NS=%lu",
692 g_quark_to_string(es->t), g_quark_to_string(es->n),
693 es->entry.tv_sec, es->entry.tv_nsec);
694 fprintf(fp, " CHANGE_S=%lu CHANGE_NS=%lu STATUS=\"%s\"/>\n",
695 es->change.tv_sec, es->change.tv_nsec, g_quark_to_string(es->s));
696 }
697
698 for(i = 0 ; i < process->user_stack->len; i++) {
699 address = g_array_index(process->user_stack, guint64, i);
700 fprintf(fp, " <USER_STACK ADDRESS=\"%" PRIu64 "\"/>\n", address);
701 }
702
703 fprintf(fp, " </PROCESS>\n");
704 }
705
706
707 void lttv_state_write(LttvTraceState *self, LttTime t, FILE *fp)
708 {
709 guint i, nb_tracefile, nb_block, offset;
710 guint64 tsc;
711
712 LttvTracefileState *tfcs;
713
714 LttTracefile *tf;
715
716 LttEventPosition *ep;
717
718 guint nb_cpus;
719
720 ep = ltt_event_position_new();
721
722 fprintf(fp,"<PROCESS_STATE TIME_S=%lu TIME_NS=%lu>\n", t.tv_sec, t.tv_nsec);
723
724 g_hash_table_foreach(self->processes, write_process_state, fp);
725
726 nb_cpus = ltt_trace_get_num_cpu(self->parent.t);
727 for(i=0;i<nb_cpus;i++) {
728 fprintf(fp," <CPU NUM=%u RUNNING_PROCESS=%u>\n",
729 i, self->running_process[i]->pid);
730 }
731
732 nb_tracefile = self->parent.tracefiles->len;
733
734 for(i = 0 ; i < nb_tracefile ; i++) {
735 tfcs =
736 LTTV_TRACEFILE_STATE(g_array_index(self->parent.tracefiles,
737 LttvTracefileContext*, i));
738 fprintf(fp, " <TRACEFILE TIMESTAMP_S=%lu TIMESTAMP_NS=%lu",
739 tfcs->parent.timestamp.tv_sec,
740 tfcs->parent.timestamp.tv_nsec);
741 LttEvent *e = ltt_tracefile_get_event(tfcs->parent.tf);
742 if(e == NULL) fprintf(fp,"/>\n");
743 else {
744 ltt_event_position(e, ep);
745 ltt_event_position_get(ep, &tf, &nb_block, &offset, &tsc);
746 fprintf(fp, " BLOCK=%u OFFSET=%u TSC=%" PRIu64 "/>\n", nb_block, offset,
747 tsc);
748 }
749 }
750 g_free(ep);
751 fprintf(fp,"</PROCESS_STATE>\n");
752 }
753
754
755 static void write_process_state_raw(gpointer key, gpointer value,
756 gpointer user_data)
757 {
758 LttvProcessState *process;
759
760 LttvExecutionState *es;
761
762 FILE *fp = (FILE *)user_data;
763
764 guint i;
765 guint64 address;
766
767 process = (LttvProcessState *)value;
768 fputc(HDR_PROCESS, fp);
769 //fwrite(&header, sizeof(header), 1, fp);
770 //fprintf(fp, "%s", g_quark_to_string(process->type));
771 //fputc('\0', fp);
772 fwrite(&process->type, sizeof(process->type), 1, fp);
773 //fprintf(fp, "%s", g_quark_to_string(process->name));
774 //fputc('\0', fp);
775 fwrite(&process->name, sizeof(process->name), 1, fp);
776 //fputc('\0', fp);
777 fwrite(&process->pid, sizeof(process->pid), 1, fp);
778 fwrite(&process->free_events, sizeof(process->free_events), 1, fp);
779 fwrite(&process->tgid, sizeof(process->tgid), 1, fp);
780 fwrite(&process->ppid, sizeof(process->ppid), 1, fp);
781 fwrite(&process->cpu, sizeof(process->cpu), 1, fp);
782 fwrite(&process->creation_time, sizeof(process->creation_time), 1, fp);
783 fwrite(&process->insertion_time, sizeof(process->insertion_time), 1, fp);
784
785 #if 0
786 fprintf(fp," <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\" CPU=\"%u\" PROCESS_TYPE=%u>\n",
787 process, process->pid, process->tgid, process->ppid,
788 g_quark_to_string(process->type),
789 process->creation_time.tv_sec,
790 process->creation_time.tv_nsec,
791 process->insertion_time.tv_sec,
792 process->insertion_time.tv_nsec,
793 g_quark_to_string(process->name),
794 process->cpu);
795 #endif //0
796
797 for(i = 0 ; i < process->execution_stack->len; i++) {
798 es = &g_array_index(process->execution_stack, LttvExecutionState, i);
799
800 fputc(HDR_ES, fp);
801 //fprintf(fp, "%s", g_quark_to_string(es->t));
802 //fputc('\0', fp);
803 fwrite(&es->t, sizeof(es->t), 1, fp);
804 //fprintf(fp, "%s", g_quark_to_string(es->n));
805 //fputc('\0', fp);
806 fwrite(&es->n, sizeof(es->n), 1, fp);
807 //fprintf(fp, "%s", g_quark_to_string(es->s));
808 //fputc('\0', fp);
809 fwrite(&es->s, sizeof(es->s), 1, fp);
810 fwrite(&es->entry, sizeof(es->entry), 1, fp);
811 fwrite(&es->change, sizeof(es->change), 1, fp);
812 fwrite(&es->cum_cpu_time, sizeof(es->cum_cpu_time), 1, fp);
813 #if 0
814 fprintf(fp, " <ES MODE=\"%s\" SUBMODE=\"%s\" ENTRY_S=%lu ENTRY_NS=%lu",
815 g_quark_to_string(es->t), g_quark_to_string(es->n),
816 es->entry.tv_sec, es->entry.tv_nsec);
817 fprintf(fp, " CHANGE_S=%lu CHANGE_NS=%lu STATUS=\"%s\"/>\n",
818 es->change.tv_sec, es->change.tv_nsec, g_quark_to_string(es->s));
819 #endif //0
820 }
821
822 for(i = 0 ; i < process->user_stack->len; i++) {
823 address = g_array_index(process->user_stack, guint64, i);
824 fputc(HDR_USER_STACK, fp);
825 fwrite(&address, sizeof(address), 1, fp);
826 #if 0
827 fprintf(fp, " <USER_STACK ADDRESS=\"%llu\"/>\n", address);
828 #endif //0
829 }
830 }
831
832
833 void lttv_state_write_raw(LttvTraceState *self, LttTime t, FILE *fp)
834 {
835 guint i, nb_tracefile, nb_block, offset;
836 guint64 tsc;
837
838 LttvTracefileState *tfcs;
839
840 LttTracefile *tf;
841
842 LttEventPosition *ep;
843
844 guint nb_cpus;
845
846 ep = ltt_event_position_new();
847
848 //fprintf(fp,"<PROCESS_STATE TIME_S=%lu TIME_NS=%lu>\n", t.tv_sec, t.tv_nsec);
849 fputc(HDR_PROCESS_STATE, fp);
850 fwrite(&t, sizeof(t), 1, fp);
851
852 g_hash_table_foreach(self->processes, write_process_state_raw, fp);
853
854 nb_cpus = ltt_trace_get_num_cpu(self->parent.t);
855 for(i=0;i<nb_cpus;i++) {
856 fputc(HDR_CPU, fp);
857 fwrite(&i, sizeof(i), 1, fp); /* cpu number */
858 fwrite(&self->running_process[i]->pid,
859 sizeof(self->running_process[i]->pid), 1, fp);
860 //fprintf(fp," <CPU NUM=%u RUNNING_PROCESS=%u>\n",
861 // i, self->running_process[i]->pid);
862 }
863
864 nb_tracefile = self->parent.tracefiles->len;
865
866 for(i = 0 ; i < nb_tracefile ; i++) {
867 tfcs =
868 LTTV_TRACEFILE_STATE(g_array_index(self->parent.tracefiles,
869 LttvTracefileContext*, i));
870 // fprintf(fp, " <TRACEFILE TIMESTAMP_S=%lu TIMESTAMP_NS=%lu",
871 // tfcs->parent.timestamp.tv_sec,
872 // tfcs->parent.timestamp.tv_nsec);
873 fputc(HDR_TRACEFILE, fp);
874 fwrite(&tfcs->parent.timestamp, sizeof(tfcs->parent.timestamp), 1, fp);
875 /* Note : if timestamp if LTT_TIME_INFINITE, there will be no
876 * position following : end of trace */
877 LttEvent *e = ltt_tracefile_get_event(tfcs->parent.tf);
878 if(e != NULL) {
879 ltt_event_position(e, ep);
880 ltt_event_position_get(ep, &tf, &nb_block, &offset, &tsc);
881 //fprintf(fp, " BLOCK=%u OFFSET=%u TSC=%llu/>\n", nb_block, offset,
882 // tsc);
883 fwrite(&nb_block, sizeof(nb_block), 1, fp);
884 fwrite(&offset, sizeof(offset), 1, fp);
885 fwrite(&tsc, sizeof(tsc), 1, fp);
886 }
887 }
888 g_free(ep);
889 }
890
891
892 /* Read process state from a file */
893
894 /* Called because a HDR_PROCESS was found */
895 static void read_process_state_raw(LttvTraceState *self, FILE *fp,
896 GPtrArray *quarktable)
897 {
898 LttvExecutionState *es;
899 LttvProcessState *process, *parent_process;
900 LttvProcessState tmp;
901 GQuark tmpq;
902 size_t res;
903
904 guint64 *address;
905
906 res = fread(&tmp.type, sizeof(tmp.type), 1, fp);
907 res += fread(&tmp.name, sizeof(tmp.name), 1, fp);
908 res += fread(&tmp.pid, sizeof(tmp.pid), 1, fp);
909 res += fread(&tmp.free_events, sizeof(tmp.free_events), 1, fp);
910 res += fread(&tmp.tgid, sizeof(tmp.tgid), 1, fp);
911 res += fread(&tmp.ppid, sizeof(tmp.ppid), 1, fp);
912 res += fread(&tmp.cpu, sizeof(tmp.cpu), 1, fp);
913 res += fread(&tmp.creation_time, sizeof(tmp.creation_time), 1, fp);
914 res += fread(&tmp.insertion_time, sizeof(tmp.insertion_time), 1, fp);
915 g_assert(res == 10);
916
917 if(tmp.pid == 0) {
918 process = lttv_state_find_process(self, tmp.cpu, tmp.pid);
919 } else {
920 /* We must link to the parent */
921 parent_process = lttv_state_find_process_or_create(self, ANY_CPU, tmp.ppid,
922 &ltt_time_zero);
923 process = lttv_state_find_process(self, ANY_CPU, tmp.pid);
924 if(process == NULL) {
925 process = lttv_state_create_process(self, parent_process, tmp.cpu,
926 tmp.pid, tmp.tgid,
927 g_quark_from_string((gchar*)g_ptr_array_index(quarktable, tmp.name)),
928 &tmp.creation_time);
929 }
930 }
931 process->insertion_time = tmp.insertion_time;
932 process->creation_time = tmp.creation_time;
933 process->type = g_quark_from_string(
934 (gchar*)g_ptr_array_index(quarktable, tmp.type));
935 process->tgid = tmp.tgid;
936 process->ppid = tmp.ppid;
937 process->name =
938 g_quark_from_string((gchar*)g_ptr_array_index(quarktable, tmp.name));
939 process->free_events = tmp.free_events;
940
941 do {
942 if(feof(fp) || ferror(fp)) goto end_loop;
943
944 gint hdr = fgetc(fp);
945 if(hdr == EOF) goto end_loop;
946
947 switch(hdr) {
948 case HDR_ES:
949 process->execution_stack =
950 g_array_set_size(process->execution_stack,
951 process->execution_stack->len + 1);
952 es = &g_array_index(process->execution_stack, LttvExecutionState,
953 process->execution_stack->len-1);
954 process->state = es;
955
956 res = fread(&es->t, sizeof(es->t), 1, fp);
957 g_assert(res == 1);
958 es->t = g_quark_from_string(
959 (gchar*)g_ptr_array_index(quarktable, es->t));
960 res = fread(&es->n, sizeof(es->n), 1, fp);
961 g_assert(res == 1);
962 es->n = g_quark_from_string(
963 (gchar*)g_ptr_array_index(quarktable, es->n));
964 res = fread(&es->s, sizeof(es->s), 1, fp);
965 g_assert(res == 1);
966 es->s = g_quark_from_string(
967 (gchar*)g_ptr_array_index(quarktable, es->s));
968 res = fread(&es->entry, sizeof(es->entry), 1, fp);
969 res += fread(&es->change, sizeof(es->change), 1, fp);
970 res += fread(&es->cum_cpu_time, sizeof(es->cum_cpu_time), 1, fp);
971 g_assert(res == 3);
972 break;
973
974 case HDR_USER_STACK:
975 process->user_stack = g_array_set_size(process->user_stack,
976 process->user_stack->len + 1);
977 address = &g_array_index(process->user_stack, guint64,
978 process->user_stack->len-1);
979 res = fread(address, sizeof(address), 1, fp);
980 g_assert(res == 1);
981 process->current_function = *address;
982 break;
983
984 default:
985 ungetc(hdr, fp);
986 goto end_loop;
987 };
988 } while(1);
989 end_loop:
990 return;
991 }
992
993
994 /* Called because a HDR_PROCESS_STATE was found */
995 /* Append a saved state to the trace states */
996 void lttv_state_read_raw(LttvTraceState *self, FILE *fp, GPtrArray *quarktable)
997 {
998 guint i, nb_tracefile, nb_block, offset;
999 guint64 tsc;
1000 LttvTracefileState *tfcs;
1001
1002 LttEventPosition *ep;
1003
1004 guint nb_cpus;
1005
1006 int hdr;
1007 size_t res;
1008
1009 LttTime t;
1010
1011 LttvAttribute *saved_states_tree, *saved_state_tree;
1012
1013 LttvAttributeValue value;
1014 GTree *pqueue = self->parent.ts_context->pqueue;
1015 ep = ltt_event_position_new();
1016
1017 restore_init_state(self);
1018
1019 res = fread(&t, sizeof(t), 1, fp);
1020 g_assert(res == 1);
1021
1022 do {
1023 if(feof(fp) || ferror(fp)) goto end_loop;
1024 hdr = fgetc(fp);
1025 if(hdr == EOF) goto end_loop;
1026
1027 switch(hdr) {
1028 case HDR_PROCESS:
1029 /* Call read_process_state_raw */
1030 read_process_state_raw(self, fp, quarktable);
1031 break;
1032 case HDR_TRACEFILE:
1033 case HDR_TRACESET:
1034 case HDR_TRACE:
1035 case HDR_QUARKS:
1036 case HDR_QUARK:
1037 case HDR_ES:
1038 case HDR_USER_STACK:
1039 case HDR_PROCESS_STATE:
1040 case HDR_CPU:
1041 ungetc(hdr, fp);
1042 goto end_loop;
1043 break;
1044 default:
1045 g_error("Error while parsing saved state file : unknown data header %d",
1046 hdr);
1047 };
1048 } while(1);
1049 end_loop:
1050
1051 nb_cpus = ltt_trace_get_num_cpu(self->parent.t);
1052 for(i=0;i<nb_cpus;i++) {
1053 int cpu_num;
1054 hdr = fgetc(fp);
1055 g_assert(hdr == HDR_CPU);
1056 res = fread(&cpu_num, sizeof(cpu_num), 1, fp); /* cpu number */
1057 g_assert(res == 1);
1058 g_assert(i == cpu_num);
1059 res = fread(&self->running_process[i]->pid,
1060 sizeof(self->running_process[i]->pid), 1, fp);
1061 g_assert(res == 1);
1062 }
1063
1064 nb_tracefile = self->parent.tracefiles->len;
1065
1066 for(i = 0 ; i < nb_tracefile ; i++) {
1067 tfcs =
1068 LTTV_TRACEFILE_STATE(g_array_index(self->parent.tracefiles,
1069 LttvTracefileContext*, i));
1070 // fprintf(fp, " <TRACEFILE TIMESTAMP_S=%lu TIMESTAMP_NS=%lu",
1071 // tfcs->parent.timestamp.tv_sec,
1072 // tfcs->parent.timestamp.tv_nsec);
1073 g_tree_remove(pqueue, &tfcs->parent);
1074 hdr = fgetc(fp);
1075 g_assert(hdr == HDR_TRACEFILE);
1076 res = fread(&tfcs->parent.timestamp, sizeof(tfcs->parent.timestamp), 1, fp);
1077 g_assert(res == 1);
1078 /* Note : if timestamp if LTT_TIME_INFINITE, there will be no
1079 * position following : end of trace */
1080 if(ltt_time_compare(tfcs->parent.timestamp, ltt_time_infinite) != 0) {
1081 res = fread(&nb_block, sizeof(nb_block), 1, fp);
1082 res += fread(&offset, sizeof(offset), 1, fp);
1083 res += fread(&tsc, sizeof(tsc), 1, fp);
1084 g_assert(res == 3);
1085 ltt_event_position_set(ep, tfcs->parent.tf, nb_block, offset, tsc);
1086 gint ret = ltt_tracefile_seek_position(tfcs->parent.tf, ep);
1087 g_assert(ret == 0);
1088 g_tree_insert(pqueue, &tfcs->parent, &tfcs->parent);
1089 }
1090 }
1091 g_free(ep);
1092
1093 saved_states_tree = lttv_attribute_find_subdir(self->parent.t_a,
1094 LTTV_STATE_SAVED_STATES);
1095 saved_state_tree = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL);
1096 value = lttv_attribute_add(saved_states_tree,
1097 lttv_attribute_get_number(saved_states_tree), LTTV_GOBJECT);
1098 *(value.v_gobject) = (GObject *)saved_state_tree;
1099 value = lttv_attribute_add(saved_state_tree, LTTV_STATE_TIME, LTTV_TIME);
1100 *(value.v_time) = t;
1101 lttv_state_save(self, saved_state_tree);
1102 g_debug("Saving state at time %lu.%lu", t.tv_sec,
1103 t.tv_nsec);
1104
1105 *(self->max_time_state_recomputed_in_seek) = t;
1106
1107 }
1108
1109 /* Called when a HDR_TRACE is found */
1110 void lttv_trace_states_read_raw(LttvTraceState *tcs, FILE *fp,
1111 GPtrArray *quarktable)
1112 {
1113 int hdr;
1114
1115 do {
1116 if(feof(fp) || ferror(fp)) goto end_loop;
1117 hdr = fgetc(fp);
1118 if(hdr == EOF) goto end_loop;
1119
1120 switch(hdr) {
1121 case HDR_PROCESS_STATE:
1122 /* Call read_process_state_raw */
1123 lttv_state_read_raw(tcs, fp, quarktable);
1124 break;
1125 case HDR_TRACEFILE:
1126 case HDR_TRACESET:
1127 case HDR_TRACE:
1128 case HDR_QUARKS:
1129 case HDR_QUARK:
1130 case HDR_ES:
1131 case HDR_USER_STACK:
1132 case HDR_PROCESS:
1133 case HDR_CPU:
1134 g_error("Error while parsing saved state file :"
1135 " unexpected data header %d",
1136 hdr);
1137 break;
1138 default:
1139 g_error("Error while parsing saved state file : unknown data header %d",
1140 hdr);
1141 };
1142 } while(1);
1143 end_loop:
1144 *(tcs->max_time_state_recomputed_in_seek) = tcs->parent.time_span.end_time;
1145 restore_init_state(tcs);
1146 lttv_process_trace_seek_time(&tcs->parent, ltt_time_zero);
1147 return;
1148 }
1149 #endif /* BABEL_CLEANUP */
1150
1151
1152 /* Copy each process from an existing hash table to a new one */
1153
1154 static void copy_process_state(gpointer key, gpointer value,gpointer user_data)
1155 {
1156 LttvProcessState *process, *new_process;
1157
1158 GHashTable *new_processes = (GHashTable *)user_data;
1159
1160 guint i;
1161
1162 process = (LttvProcessState *)value;
1163 new_process = g_new(LttvProcessState, 1);
1164 *new_process = *process;
1165 new_process->execution_stack = g_array_sized_new(FALSE, FALSE,
1166 sizeof(LttvExecutionState), PREALLOCATED_EXECUTION_STACK);
1167 new_process->execution_stack =
1168 g_array_set_size(new_process->execution_stack,
1169 process->execution_stack->len);
1170 for(i = 0 ; i < process->execution_stack->len; i++) {
1171 g_array_index(new_process->execution_stack, LttvExecutionState, i) =
1172 g_array_index(process->execution_stack, LttvExecutionState, i);
1173 }
1174 new_process->state = &g_array_index(new_process->execution_stack,
1175 LttvExecutionState, new_process->execution_stack->len - 1);
1176 #ifdef BABEL_CLEANUP
1177 new_process->user_stack = g_array_sized_new(FALSE, FALSE,
1178 sizeof(guint64), 0);
1179 new_process->user_stack = g_array_set_size(new_process->user_stack,
1180 process->user_stack->len);
1181 for(i = 0 ; i < process->user_stack->len; i++) {
1182 g_array_index(new_process->user_stack, guint64, i) =
1183 g_array_index(process->user_stack, guint64, i);
1184 }
1185 new_process->current_function = process->current_function;
1186 #endif /* BABEL_CLEANUP */
1187
1188 /* fd hash table stuff */
1189 {
1190 GHashTableIter it;
1191 gpointer key;
1192 gpointer value;
1193
1194 /* copy every item in the hash table */
1195 new_process->fds = g_hash_table_new(g_direct_hash, g_direct_equal);
1196
1197 g_hash_table_iter_init(&it, process->fds);
1198 while (g_hash_table_iter_next (&it, (void *)&key, (void *)&value)) {
1199 g_hash_table_insert(new_process->fds, key, value);
1200 }
1201 }
1202
1203 /* When done creating the new process state, insert it in the
1204 * hash table */
1205 g_hash_table_insert(new_processes, new_process, new_process);
1206 }
1207
1208
1209 static GHashTable *lttv_state_copy_process_table(GHashTable *processes)
1210 {
1211 GHashTable *new_processes = g_hash_table_new(process_hash, process_equal);
1212
1213 g_hash_table_foreach(processes, copy_process_state, new_processes);
1214 return new_processes;
1215 }
1216
1217 static LttvCPUState *lttv_state_copy_cpu_states(LttvCPUState *states, guint n)
1218 {
1219 guint i,j;
1220 LttvCPUState *retval;
1221
1222 retval = g_new(LttvCPUState, n);
1223
1224 for(i=0; i<n; i++) {
1225 retval[i].irq_stack = g_array_new(FALSE, FALSE, sizeof(gint));
1226 g_array_set_size(retval[i].irq_stack, states[i].irq_stack->len);
1227 for(j=0; j<states[i].irq_stack->len; j++) {
1228 g_array_index(retval[i].irq_stack, gint, j) =
1229 g_array_index(states[i].irq_stack, gint, j);
1230 }
1231
1232 retval[i].softirq_stack = g_array_new(FALSE, FALSE, sizeof(gint));
1233 g_array_set_size(retval[i].softirq_stack, states[i].softirq_stack->len);
1234 for(j=0; j<states[i].softirq_stack->len; j++) {
1235 g_array_index(retval[i].softirq_stack, gint, j) =
1236 g_array_index(states[i].softirq_stack, gint, j);
1237 }
1238
1239 retval[i].trap_stack = g_array_new(FALSE, FALSE, sizeof(gint));
1240 g_array_set_size(retval[i].trap_stack, states[i].trap_stack->len);
1241 for(j=0; j<states[i].trap_stack->len; j++) {
1242 g_array_index(retval[i].trap_stack, gint, j) =
1243 g_array_index(states[i].trap_stack, gint, j);
1244 }
1245
1246 retval[i].mode_stack = g_array_new(FALSE, FALSE, sizeof(LttvCPUMode));
1247 g_array_set_size(retval[i].mode_stack, states[i].mode_stack->len);
1248 for(j=0; j<states[i].mode_stack->len; j++) {
1249 g_array_index(retval[i].mode_stack, GQuark, j) =
1250 g_array_index(states[i].mode_stack, GQuark, j);
1251 }
1252 }
1253
1254 return retval;
1255 }
1256
1257 static void lttv_state_free_cpu_states(LttvCPUState *states, guint n)
1258 {
1259 guint i;
1260
1261 for(i=0; i<n; i++) {
1262 g_array_free(states[i].mode_stack, TRUE);
1263 g_array_free(states[i].irq_stack, TRUE);
1264 g_array_free(states[i].softirq_stack, TRUE);
1265 g_array_free(states[i].trap_stack, TRUE);
1266 }
1267
1268 g_free(states);
1269 }
1270
1271 static LttvIRQState *lttv_state_copy_irq_states(LttvIRQState *states, guint n)
1272 {
1273 guint i,j;
1274 LttvIRQState *retval;
1275
1276 retval = g_new(LttvIRQState, n);
1277
1278 for(i=0; i<n; i++) {
1279 retval[i].mode_stack = g_array_new(FALSE, FALSE, sizeof(LttvIRQMode));
1280 g_array_set_size(retval[i].mode_stack, states[i].mode_stack->len);
1281 for(j=0; j<states[i].mode_stack->len; j++) {
1282 g_array_index(retval[i].mode_stack, GQuark, j) =
1283 g_array_index(states[i].mode_stack, GQuark, j);
1284 }
1285 }
1286
1287 return retval;
1288 }
1289
1290 static void lttv_state_free_irq_states(LttvIRQState *states, guint n)
1291 {
1292 guint i;
1293
1294 for(i=0; i<n; i++) {
1295 g_array_free(states[i].mode_stack, TRUE);
1296 }
1297
1298 g_free(states);
1299 }
1300
1301 static LttvSoftIRQState *
1302 lttv_state_copy_soft_irq_states(LttvSoftIRQState *states, guint n)
1303 {
1304 guint i;
1305 LttvSoftIRQState *retval;
1306
1307 retval = g_new(LttvSoftIRQState, n);
1308
1309 for(i=0; i<n; i++) {
1310 retval[i].pending = states[i].pending;
1311 retval[i].running = states[i].running;
1312 }
1313
1314 return retval;
1315 }
1316
1317 static void lttv_state_free_soft_irq_states(LttvSoftIRQState *states, guint n)
1318 {
1319 g_free(states);
1320 }
1321
1322 static LttvTrapState *
1323 lttv_state_copy_trap_states(LttvTrapState *states, guint n)
1324 {
1325 guint i;
1326 LttvTrapState *retval;
1327
1328 retval = g_new(LttvTrapState, n);
1329
1330 for(i=0; i<n; i++) {
1331 retval[i].running = states[i].running;
1332 }
1333
1334 return retval;
1335 }
1336
1337 static void lttv_state_free_trap_states(LttvTrapState *states, guint n)
1338 {
1339 g_free(states);
1340 }
1341 #ifdef BABEL_CLEANUP
1342 /* bdevstate stuff */
1343
1344 static LttvBdevState *get_hashed_bdevstate(LttvTraceState *ts, guint32 devcode)
1345 {
1346 gint devcode_gint = devcode;
1347 gpointer bdev = g_hash_table_lookup(ts->bdev_states, &devcode_gint);
1348 if(bdev == NULL) {
1349 LttvBdevState *bdevstate = g_new(LttvBdevState, 1);
1350 bdevstate->mode_stack = g_array_new(FALSE, FALSE, sizeof(GQuark));
1351
1352 gint * key = g_new(gint, 1);
1353 *key = devcode;
1354 g_hash_table_insert(ts->bdev_states, key, bdevstate);
1355
1356 bdev = bdevstate;
1357 }
1358
1359 return bdev;
1360 }
1361 #endif
1362 static LttvBdevState *bdevstate_new(void)
1363 {
1364 LttvBdevState *retval;
1365 retval = g_new(LttvBdevState, 1);
1366 retval->mode_stack = g_array_new(FALSE, FALSE, sizeof(GQuark));
1367
1368 return retval;
1369 }
1370
1371 static void bdevstate_free(LttvBdevState *bds)
1372 {
1373 g_array_free(bds->mode_stack, TRUE);
1374 g_free(bds);
1375 }
1376
1377 static void bdevstate_free_cb(gpointer key, gpointer value, gpointer user_data)
1378 {
1379 LttvBdevState *bds = (LttvBdevState *) value;
1380
1381 bdevstate_free(bds);
1382 }
1383
1384 static LttvBdevState *bdevstate_copy(LttvBdevState *bds)
1385 {
1386 LttvBdevState *retval;
1387
1388 retval = bdevstate_new();
1389 g_array_insert_vals(retval->mode_stack, 0, bds->mode_stack->data,
1390 bds->mode_stack->len);
1391
1392 return retval;
1393 }
1394
1395 static void insert_and_copy_bdev_state(gpointer k, gpointer v, gpointer u)
1396 {
1397 //GHashTable *ht = (GHashTable *)u;
1398 LttvBdevState *bds = (LttvBdevState *)v;
1399 LttvBdevState *newbds;
1400
1401 newbds = bdevstate_copy(bds);
1402
1403 g_hash_table_insert(u, k, newbds);
1404 }
1405
1406 static GHashTable *lttv_state_copy_blkdev_hashtable(GHashTable *ht)
1407 {
1408 GHashTable *retval;
1409
1410 retval = g_hash_table_new(g_int_hash, g_int_equal);
1411
1412 g_hash_table_foreach(ht, insert_and_copy_bdev_state, retval);
1413
1414 return retval;
1415 }
1416
1417 /* Free a hashtable and the LttvBdevState structures its values
1418 * point to. */
1419
1420 static void lttv_state_free_blkdev_hashtable(GHashTable *ht)
1421 {
1422 g_hash_table_foreach(ht, bdevstate_free_cb, NULL);
1423 g_hash_table_destroy(ht);
1424 }
1425
1426 /* The saved state for each trace contains a member "processes", which
1427 stores a copy of the process table, and a member "tracefiles" with
1428 one entry per tracefile. Each tracefile has a "process" member pointing
1429 to the current process and a "position" member storing the tracefile
1430 position (needed to seek to the current "next" event. */
1431
1432 void lttv_state_save(LttvTraceState *self, LttvAttribute *container)
1433 {
1434 guint i, nb_cpus, nb_irqs, nb_soft_irqs, nb_traps;
1435
1436 guint *running_process;
1437
1438 LttvAttributeValue value;
1439
1440 value = lttv_attribute_add(container, LTTV_STATE_PROCESSES,
1441 LTTV_POINTER);
1442 *(value.v_pointer) = lttv_state_copy_process_table(self->processes);
1443
1444 /* Add the currently running processes array */
1445 nb_cpus = lttv_trace_get_num_cpu(self->trace);
1446 running_process = g_new(guint, nb_cpus);
1447 for(i=0;i<nb_cpus;i++) {
1448 running_process[i] = self->running_process[i]->pid;
1449 }
1450 value = lttv_attribute_add(container, LTTV_STATE_RUNNING_PROCESS,
1451 LTTV_POINTER);
1452 *(value.v_pointer) = running_process;
1453
1454 g_info("State save");
1455
1456 /* Save the current position */
1457 value = lttv_attribute_add(container, LTTV_STATE_POSITION,
1458 LTTV_POINTER);
1459 *(value.v_pointer) = lttv_traceset_create_current_position(lttv_trace_get_traceset(self->trace));
1460
1461 #ifdef BABEL_CLEANUP
1462 nb_tracefile = self->parent.tracefiles->len;
1463 for(i = 0 ; i < nb_tracefile ; i++) {
1464 tfcs =
1465 LTTV_TRACEFILE_STATE(g_array_index(self->parent.tracefiles,
1466 LttvTracefileContext*, i));
1467 tracefile_tree = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL);
1468 value = lttv_attribute_add(tracefiles_tree, i,
1469 LTTV_GOBJECT);
1470 *(value.v_gobject) = (GObject *)tracefile_tree;
1471 #if 0
1472 value = lttv_attribute_add(tracefile_tree, LTTV_STATE_PROCESS,
1473 LTTV_UINT);
1474 *(value.v_uint) = tfcs->process->pid;
1475 #endif //0
1476 value = lttv_attribute_add(tracefile_tree, LTTV_STATE_EVENT,
1477 LTTV_POINTER);
1478 /* Only save the position if the tfs has not infinite time. */
1479 //if(!g_tree_lookup(self->parent.ts_context->pqueue, &tfcs->parent)
1480 // && current_tfcs != tfcs) {
1481 if(ltt_time_compare(tfcs->parent.timestamp, ltt_time_infinite) == 0) {
1482 *(value.v_pointer) = NULL;
1483 } else {
1484 LttEvent *e = ltt_tracefile_get_event(tfcs->parent.tf);
1485 ep = ltt_event_position_new();
1486 ltt_event_position(e, ep);
1487 *(value.v_pointer) = ep;
1488
1489 guint nb_block, offset;
1490 guint64 tsc;
1491 LttTracefile *tf;
1492 ltt_event_position_get(ep, &tf, &nb_block, &offset, &tsc);
1493 g_info("Block %u offset %u tsc %" PRIu64 " time %lu.%lu", nb_block,
1494 offset, tsc, tfcs->parent.timestamp.tv_sec,
1495 tfcs->parent.timestamp.tv_nsec);
1496 }
1497 }
1498 #endif /* BABEL_CLEANUP */
1499
1500 /* save the cpu state */
1501 {
1502 value = lttv_attribute_add(container, LTTV_STATE_RESOURCE_CPUS_COUNT,
1503 LTTV_UINT);
1504 *(value.v_uint) = nb_cpus;
1505
1506 value = lttv_attribute_add(container, LTTV_STATE_RESOURCE_CPUS,
1507 LTTV_POINTER);
1508 *(value.v_pointer) = lttv_state_copy_cpu_states(self->cpu_states, nb_cpus);
1509 }
1510
1511 /* save the irq state */
1512 nb_irqs = self->name_tables->nb_irqs;
1513 {
1514 value = lttv_attribute_add(container, LTTV_STATE_RESOURCE_IRQS,
1515 LTTV_POINTER);
1516 *(value.v_pointer) = lttv_state_copy_irq_states(self->irq_states, nb_irqs);
1517 }
1518
1519 /* save the soft irq state */
1520 nb_soft_irqs = self->name_tables->nb_soft_irqs;
1521 {
1522 value = lttv_attribute_add(container, LTTV_STATE_RESOURCE_SOFT_IRQS,
1523 LTTV_POINTER);
1524 *(value.v_pointer) = lttv_state_copy_soft_irq_states(self->soft_irq_states, nb_soft_irqs);
1525 }
1526
1527 /* save the trap state */
1528 nb_traps = self->name_tables->nb_traps;
1529 {
1530 value = lttv_attribute_add(container, LTTV_STATE_RESOURCE_TRAPS,
1531 LTTV_POINTER);
1532 *(value.v_pointer) = lttv_state_copy_trap_states(self->trap_states, nb_traps);
1533 }
1534
1535 /* save the blkdev states */
1536 value = lttv_attribute_add(container, LTTV_STATE_RESOURCE_BLKDEVS,
1537 LTTV_POINTER);
1538 *(value.v_pointer) = lttv_state_copy_blkdev_hashtable(self->bdev_states);
1539 }
1540
1541 void lttv_state_restore(LttvTraceState *self, LttvAttribute *container)
1542 {
1543 guint i, pid, nb_cpus, nb_irqs, nb_soft_irqs, nb_traps;
1544 guint *running_process;
1545 LttvAttributeType type;
1546 LttvAttributeValue value;
1547
1548 type = lttv_attribute_get_by_name(container, LTTV_STATE_PROCESSES,
1549 &value);
1550 g_assert(type == LTTV_POINTER);
1551 lttv_state_free_process_table(self->processes);
1552 self->processes = lttv_state_copy_process_table(*(value.v_pointer));
1553
1554 /* Add the currently running processes array */
1555 nb_cpus = lttv_trace_get_num_cpu(self->trace);
1556 type = lttv_attribute_get_by_name(container, LTTV_STATE_RUNNING_PROCESS,
1557 &value);
1558 g_assert(type == LTTV_POINTER);
1559 running_process = *(value.v_pointer);
1560 for(i=0;i<nb_cpus;i++) {
1561 pid = running_process[i];
1562 self->running_process[i] = lttv_state_find_process(self, i, pid);
1563 g_assert(self->running_process[i] != NULL);
1564 }
1565
1566 //nb_tracefile = self->parent.tracefiles->len;
1567
1568 //g_tree_destroy(tsc->pqueue);
1569 //tsc->pqueue = g_tree_new(compare_tracefile);
1570
1571 /* restore cpu resource states */
1572 type = lttv_attribute_get_by_name(container, LTTV_STATE_RESOURCE_CPUS, &value);
1573 g_assert(type == LTTV_POINTER);
1574 lttv_state_free_cpu_states(self->cpu_states, nb_cpus);
1575 self->cpu_states = lttv_state_copy_cpu_states(*(value.v_pointer), nb_cpus);
1576
1577 /* restore irq resource states */
1578 nb_irqs = self->name_tables->nb_irqs;
1579 type = lttv_attribute_get_by_name(container, LTTV_STATE_RESOURCE_IRQS, &value);
1580 g_assert(type == LTTV_POINTER);
1581 lttv_state_free_irq_states(self->irq_states, nb_irqs);
1582 self->irq_states = lttv_state_copy_irq_states(*(value.v_pointer), nb_irqs);
1583
1584 /* restore soft irq resource states */
1585 nb_soft_irqs = self->name_tables->nb_soft_irqs;
1586 type = lttv_attribute_get_by_name(container, LTTV_STATE_RESOURCE_SOFT_IRQS, &value);
1587 g_assert(type == LTTV_POINTER);
1588 lttv_state_free_soft_irq_states(self->soft_irq_states, nb_soft_irqs);
1589 self->soft_irq_states = lttv_state_copy_soft_irq_states(*(value.v_pointer), nb_soft_irqs);
1590
1591 /* restore trap resource states */
1592 nb_traps = self->name_tables->nb_traps;
1593 type = lttv_attribute_get_by_name(container, LTTV_STATE_RESOURCE_TRAPS, &value);
1594 g_assert(type == LTTV_POINTER);
1595 lttv_state_free_trap_states(self->trap_states, nb_traps);
1596 self->trap_states = lttv_state_copy_trap_states(*(value.v_pointer), nb_traps);
1597
1598 /* restore the blkdev states */
1599 type = lttv_attribute_get_by_name(container, LTTV_STATE_RESOURCE_BLKDEVS, &value);
1600 g_assert(type == LTTV_POINTER);
1601 lttv_state_free_blkdev_hashtable(self->bdev_states);
1602 self->bdev_states = lttv_state_copy_blkdev_hashtable(*(value.v_pointer));
1603
1604 #ifdef BABEL_CLEANUP
1605 for(i = 0 ; i < nb_tracefile ; i++) {
1606 tfcs =
1607 LTTV_TRACEFILE_STATE(g_array_index(self->parent.tracefiles,
1608 LttvTracefileContext*, i));
1609 type = lttv_attribute_get(tracefiles_tree, i, &name, &value, &is_named);
1610 g_assert(type == LTTV_GOBJECT);
1611 tracefile_tree = *((LttvAttribute **)(value.v_gobject));
1612 #if 0
1613 type = lttv_attribute_get_by_name(tracefile_tree, LTTV_STATE_PROCESS,
1614 &value);
1615 g_assert(type == LTTV_UINT);
1616 pid = *(value.v_uint);
1617 tfcs->process = lttv_state_find_process_or_create(tfcs, pid);
1618 #endif //0
1619 type = lttv_attribute_get_by_name(tracefile_tree, LTTV_STATE_EVENT,
1620 &value);
1621 g_assert(type == LTTV_POINTER);
1622 //g_assert(*(value.v_pointer) != NULL);
1623 ep = *(value.v_pointer);
1624 g_assert(tfcs->parent.t_context != NULL);
1625
1626 tfcs->cpu_state = &self->cpu_states[tfcs->cpu];
1627
1628 LttvTracefileContext *tfc = LTTV_TRACEFILE_CONTEXT(tfcs);
1629 g_tree_remove(tsc->pqueue, tfc);
1630
1631 if(ep != NULL) {
1632 retval= ltt_tracefile_seek_position(tfc->tf, ep);
1633 g_assert_cmpint(retval, ==, 0);
1634 tfc->timestamp = ltt_event_time(ltt_tracefile_get_event(tfc->tf));
1635 g_assert_cmpint(ltt_time_compare(tfc->timestamp, ltt_time_infinite),
1636 !=, 0);
1637 g_tree_insert(tsc->pqueue, tfc, tfc);
1638 g_info("Restoring state for a tf at time %lu.%lu",
1639 tfc->timestamp.tv_sec, tfc->timestamp.tv_nsec);
1640 } else {
1641 tfc->timestamp = ltt_time_infinite;
1642 }
1643 }
1644 #endif /* BABEL_CLEANUP */
1645 }
1646
1647 /*
1648 * Note: the position must be explicitely set on the entire traceset to
1649 * match the trace states.
1650 */
1651 LttvTracesetPosition *lttv_trace_state_get_position(LttvAttribute *container)
1652 {
1653 LttvAttributeType type;
1654 LttvAttributeValue value;
1655
1656 type = lttv_attribute_get_by_name(container, LTTV_STATE_POSITION, &value);
1657 g_assert(type == LTTV_POINTER);
1658 return *(value.v_pointer);
1659 }
1660
1661 void lttv_state_saved_free(LttvTraceState *self, LttvAttribute *container)
1662 {
1663 guint nb_cpus, nb_irqs, nb_soft_irqs;
1664 guint *running_process;
1665 LttvAttributeType type;
1666 LttvAttributeValue value;
1667
1668 type = lttv_attribute_get_by_name(container, LTTV_STATE_PROCESSES,
1669 &value);
1670 g_assert(type == LTTV_POINTER);
1671 lttv_state_free_process_table(*(value.v_pointer));
1672 *(value.v_pointer) = NULL;
1673 lttv_attribute_remove_by_name(container, LTTV_STATE_PROCESSES);
1674
1675 /* Free running processes array */
1676 type = lttv_attribute_get_by_name(container, LTTV_STATE_RUNNING_PROCESS,
1677 &value);
1678 g_assert(type == LTTV_POINTER);
1679 running_process = *(value.v_pointer);
1680 g_free(running_process);
1681
1682 /* free cpu resources */
1683 type = lttv_attribute_get_by_name(container, LTTV_STATE_RESOURCE_CPUS_COUNT, &value);
1684 g_assert(type == LTTV_UINT);
1685 nb_cpus = *value.v_uint;
1686 type = lttv_attribute_get_by_name(container, LTTV_STATE_RESOURCE_CPUS, &value);
1687 g_assert(type == LTTV_POINTER);
1688 lttv_state_free_cpu_states(*(value.v_pointer), nb_cpus);
1689
1690 /* free irq resource states */
1691 nb_irqs = self->name_tables->nb_irqs;
1692 type = lttv_attribute_get_by_name(container, LTTV_STATE_RESOURCE_IRQS, &value);
1693 g_assert(type == LTTV_POINTER);
1694 lttv_state_free_irq_states(*(value.v_pointer), nb_irqs);
1695
1696 /* free softirq resource states */
1697 nb_soft_irqs = self->name_tables->nb_soft_irqs;
1698 type = lttv_attribute_get_by_name(container, LTTV_STATE_RESOURCE_SOFT_IRQS, &value);
1699 g_assert(type == LTTV_POINTER);
1700 lttv_state_free_soft_irq_states(*(value.v_pointer), nb_soft_irqs);
1701
1702 /* free the blkdev states */
1703 type = lttv_attribute_get_by_name(container, LTTV_STATE_RESOURCE_BLKDEVS, &value);
1704 g_assert(type == LTTV_POINTER);
1705 lttv_state_free_blkdev_hashtable(*(value.v_pointer));
1706
1707 /* remove the position */
1708 type = lttv_attribute_get_by_name(container, LTTV_STATE_POSITION, &value);
1709 g_assert(type == LTTV_POINTER);
1710 lttv_traceset_destroy_position(*(value.v_pointer));
1711
1712 #ifdef BABEL_CLEANUP
1713 nb_tracefile = self->parent.tracefiles->len;
1714
1715 for(i = 0 ; i < nb_tracefile ; i++) {
1716
1717 type = lttv_attribute_get(tracefiles_tree, i, &name, &value, &is_named);
1718 g_assert(type == LTTV_GOBJECT);
1719 tracefile_tree = *((LttvAttribute **)(value.v_gobject));
1720
1721 type = lttv_attribute_get_by_name(tracefile_tree, LTTV_STATE_EVENT,
1722 &value);
1723 g_assert(type == LTTV_POINTER);
1724 if(*(value.v_pointer) != NULL) g_free(*(value.v_pointer));
1725 }
1726 g_object_unref(G_OBJECT(tracefiles_tree));
1727 #endif /* BABEL_CLEANUP */
1728 }
1729
1730
1731 static void free_saved_state(LttvTraceState *self)
1732 {
1733 guint i, nb;
1734 LttvAttributeType type;
1735 LttvAttributeValue value;
1736 LttvAttributeName name;
1737 gboolean is_named;
1738 LttvAttribute *saved_states;
1739
1740 saved_states = lttv_attribute_find_subdir(lttv_trace_attribute(self->trace),
1741 LTTV_STATE_SAVED_STATES);
1742
1743 nb = lttv_attribute_get_number(saved_states);
1744 for(i = 0 ; i < nb ; i++) {
1745 type = lttv_attribute_get(saved_states, i, &name, &value, &is_named);
1746 g_assert(type == LTTV_GOBJECT);
1747 lttv_state_saved_free(self, *((LttvAttribute **)value.v_gobject));
1748 }
1749
1750 lttv_attribute_remove_by_name(lttv_trace_attribute(self->trace),
1751 LTTV_STATE_SAVED_STATES);
1752 }
1753
1754
1755 static void create_max_time(LttvTraceState *trace_state)
1756 {
1757 LttvAttributeValue v;
1758
1759 lttv_attribute_find(lttv_trace_attribute(trace_state->trace),
1760 LTTV_STATE_SAVED_STATES_TIME,
1761 LTTV_POINTER, &v);
1762 g_assert(*(v.v_pointer) == NULL);
1763 *(v.v_pointer) = g_new(LttTime,1);
1764 *((LttTime *)*(v.v_pointer)) = ltt_time_zero;
1765 }
1766
1767
1768 static void get_max_time(LttvTraceState *trace_state)
1769 {
1770 LttvAttributeValue v;
1771
1772 lttv_attribute_find(lttv_trace_attribute(trace_state->trace),
1773 LTTV_STATE_SAVED_STATES_TIME,
1774 LTTV_POINTER, &v);
1775 g_assert(*(v.v_pointer) != NULL);
1776 trace_state->max_time_state_recomputed_in_seek = (LttTime *)*(v.v_pointer);
1777 }
1778
1779
1780 static void free_max_time(LttvTraceState *trace_state)
1781 {
1782 LttvAttributeValue v;
1783
1784 lttv_attribute_find(lttv_trace_attribute(trace_state->trace),
1785 LTTV_STATE_SAVED_STATES_TIME,
1786 LTTV_POINTER, &v);
1787 g_free(*(v.v_pointer));
1788 *(v.v_pointer) = NULL;
1789 }
1790
1791 static void create_name_tables(LttvTraceState *tcs)
1792 {
1793 int i;
1794
1795 GString *fe_name = g_string_new("");
1796
1797 LttvNameTables *name_tables = g_new(LttvNameTables, 1);
1798
1799 LttvAttributeValue v;
1800
1801 // GArray *hooks;
1802
1803 lttv_attribute_find(lttv_trace_attribute(tcs->trace), LTTV_STATE_NAME_TABLES,
1804 LTTV_POINTER, &v);
1805 g_assert(*(v.v_pointer) == NULL);
1806 *(v.v_pointer) = name_tables;
1807
1808 #ifdef BABEL_CLEANUP
1809 hooks = g_array_sized_new(FALSE, FALSE, sizeof(LttvTraceHook), 1);
1810
1811 if(!lttv_trace_find_hook(tcs->parent.t,
1812 LTT_CHANNEL_KERNEL,
1813 LTT_EVENT_SYSCALL_ENTRY,
1814 FIELD_ARRAY(LTT_FIELD_SYSCALL_ID),
1815 NULL, NULL, &hooks)) {
1816
1817 // th = lttv_trace_hook_get_first(&th);
1818 //
1819 // t = ltt_field_type(lttv_trace_get_hook_field(th, 0));
1820 // nb = ltt_type_element_number(t);
1821 //
1822 // name_tables->syscall_names = g_new(GQuark, nb);
1823 // name_tables->nb_syscalls = nb;
1824 //
1825 // for(i = 0 ; i < nb ; i++) {
1826 // name_tables->syscall_names[i] = ltt_enum_string_get(t, i);
1827 // if(!name_tables->syscall_names[i]) {
1828 // GString *string = g_string_new("");
1829 // g_string_printf(string, "syscall %u", i);
1830 // name_tables->syscall_names[i] = g_quark_from_string(string->str);
1831 // g_string_free(string, TRUE);
1832 // }
1833 // }
1834 #endif /* BABEL_CLEANUP */
1835
1836 name_tables->nb_syscalls = PREALLOC_NB_SYSCALLS;
1837 name_tables->syscall_names = g_new(GQuark, name_tables->nb_syscalls);
1838 for(i = 0 ; i < name_tables->nb_syscalls; i++) {
1839 g_string_printf(fe_name, "syscall %d", i);
1840 name_tables->syscall_names[i] = g_quark_from_string(fe_name->str);
1841 }
1842 #ifdef BABEL_CLEANUP
1843 } else {
1844 name_tables->syscall_names = NULL;
1845 name_tables->nb_syscalls = 0;
1846 }
1847 lttv_trace_hook_remove_all(&hooks);
1848 #endif /* BABEL_CLEANUP */
1849
1850 #ifdef BABEL_CLEANUP
1851 if(!lttv_trace_find_hook(tcs->parent.t,
1852 LTT_CHANNEL_KERNEL,
1853 LTT_EVENT_TRAP_ENTRY,
1854 FIELD_ARRAY(LTT_FIELD_TRAP_ID),
1855 NULL, NULL, &hooks) ||
1856 !lttv_trace_find_hook(tcs->parent.t,
1857 LTT_CHANNEL_KERNEL,
1858 LTT_EVENT_PAGE_FAULT_ENTRY,
1859 FIELD_ARRAY(LTT_FIELD_TRAP_ID),
1860 NULL, NULL, &hooks)) {
1861
1862 // th = lttv_trace_hook_get_first(&th);
1863 //
1864 // t = ltt_field_type(lttv_trace_get_hook_field(th, 0));
1865 // //nb = ltt_type_element_number(t);
1866 //
1867 // name_tables->trap_names = g_new(GQuark, nb);
1868 // for(i = 0 ; i < nb ; i++) {
1869 // name_tables->trap_names[i] = g_quark_from_string(
1870 // ltt_enum_string_get(t, i));
1871 // }
1872
1873 #endif /* BABEL_CLEANUP */
1874 name_tables->nb_traps = PREALLOC_NB_TRAPS;
1875 name_tables->trap_names = g_new(GQuark, name_tables->nb_traps);
1876 for(i = 0 ; i < name_tables->nb_traps; i++) {
1877 g_string_printf(fe_name, "trap %d", i);
1878 name_tables->trap_names[i] = g_quark_from_string(fe_name->str);
1879 }
1880 #ifdef BABEL_CLEANUP
1881 } else {
1882 name_tables->trap_names = NULL;
1883 name_tables->nb_traps = 0;
1884 }
1885 lttv_trace_hook_remove_all(&hooks);
1886 #endif /* BABEL_CLEANUP */
1887
1888 #ifdef BABEL_CLEANUP
1889 if(!lttv_trace_find_hook(tcs->parent.t,
1890 LTT_CHANNEL_KERNEL,
1891 LTT_EVENT_IRQ_ENTRY,
1892 FIELD_ARRAY(LTT_FIELD_IRQ_ID),
1893 NULL, NULL, &hooks)) {
1894
1895 /*
1896 name_tables->irq_names = g_new(GQuark, nb);
1897 for(i = 0 ; i < nb ; i++) {
1898 name_tables->irq_names[i] = g_quark_from_string(ltt_enum_string_get(t, i));
1899 }
1900 */
1901 /* FIXME: LttvIRQState *irq_states should become a g_array */
1902
1903 #endif /* BABEL_CLEANUP */
1904 name_tables->nb_irqs = PREALLOC_NB_IRQS;
1905 name_tables->irq_names = g_new(GQuark, name_tables->nb_irqs);
1906 for(i = 0 ; i < name_tables->nb_irqs; i++) {
1907 g_string_printf(fe_name, "irq %d", i);
1908 name_tables->irq_names[i] = g_quark_from_string(fe_name->str);
1909 }
1910 #ifdef BABEL_CLEANUP
1911 } else {
1912 name_tables->nb_irqs = 0;
1913 name_tables->irq_names = NULL;
1914 }
1915 lttv_trace_hook_remove_all(&hooks);
1916 #endif /* BABEL_CLEANUP */
1917 /*
1918 name_tables->soft_irq_names = g_new(GQuark, nb);
1919 for(i = 0 ; i < nb ; i++) {
1920 name_tables->soft_irq_names[i] = g_quark_from_string(ltt_enum_string_get(t, i));
1921 }
1922 */
1923
1924 name_tables->nb_soft_irqs = PREALLOC_NB_SOFT_IRQS;
1925 name_tables->soft_irq_names = g_new(GQuark, name_tables->nb_soft_irqs);
1926 for(i = 0 ; i < name_tables->nb_soft_irqs ; i++) {
1927 g_string_printf(fe_name, "softirq %d", i);
1928 name_tables->soft_irq_names[i] = g_quark_from_string(fe_name->str);
1929 }
1930 // g_array_free(hooks, TRUE);
1931
1932 g_string_free(fe_name, TRUE);
1933
1934 #if (__WORDSIZE == 32)
1935 name_tables->kprobe_hash = g_hash_table_new_full(guint64_hash, guint64_equal,
1936 g_free, NULL);
1937 #else
1938 name_tables->kprobe_hash = g_hash_table_new(g_direct_hash, g_direct_equal);
1939 #endif
1940 }
1941
1942
1943 static void get_name_tables(LttvTraceState *tcs)
1944 {
1945 LttvAttributeValue v;
1946
1947 lttv_attribute_find(lttv_trace_attribute(tcs->trace), LTTV_STATE_NAME_TABLES,
1948 LTTV_POINTER, &v);
1949 g_assert(*(v.v_pointer) != NULL);
1950 tcs->name_tables = (LttvNameTables *)*(v.v_pointer);
1951 }
1952
1953
1954 static void free_name_tables(LttvTraceState *tcs)
1955 {
1956 LttvNameTables *name_tables;
1957
1958 LttvAttributeValue v;
1959
1960 lttv_attribute_find(lttv_trace_attribute(tcs->trace), LTTV_STATE_NAME_TABLES,
1961 LTTV_POINTER, &v);
1962 name_tables = (LttvNameTables *)*(v.v_pointer);
1963 *(v.v_pointer) = NULL;
1964
1965 // g_free(name_tables->eventtype_names);
1966 if(name_tables->syscall_names) g_free(name_tables->syscall_names);
1967 if(name_tables->trap_names) g_free(name_tables->trap_names);
1968 if(name_tables->irq_names) g_free(name_tables->irq_names);
1969 if(name_tables->soft_irq_names) g_free(name_tables->soft_irq_names);
1970 g_hash_table_destroy(name_tables->kprobe_hash);
1971 g_free(name_tables);
1972 }
1973
1974 #ifdef HASH_TABLE_DEBUG
1975
1976 static void test_process(gpointer key, gpointer value, gpointer user_data)
1977 {
1978 LttvProcessState *process = (LttvProcessState *)value;
1979
1980 /* Test for process corruption */
1981 guint stack_len = process->execution_stack->len;
1982 }
1983
1984 static void hash_table_check(GHashTable *table)
1985 {
1986 g_hash_table_foreach(table, test_process, NULL);
1987 }
1988
1989
1990 #endif
1991
1992 /* clears the stack and sets the state passed as argument */
1993 static void cpu_set_base_mode(LttvCPUState *cpust, LttvCPUMode state)
1994 {
1995 g_array_set_size(cpust->mode_stack, 1);
1996 ((GQuark *)cpust->mode_stack->data)[0] = state;
1997 }
1998
1999 static void cpu_push_mode(LttvCPUState *cpust, LttvCPUMode state)
2000 {
2001 g_array_set_size(cpust->mode_stack, cpust->mode_stack->len + 1);
2002 ((GQuark *)cpust->mode_stack->data)[cpust->mode_stack->len - 1] = state;
2003 }
2004
2005 static void cpu_pop_mode(LttvCPUState *cpust)
2006 {
2007 if(cpust->mode_stack->len <= 1)
2008 cpu_set_base_mode(cpust, LTTV_CPU_UNKNOWN);
2009 else
2010 g_array_set_size(cpust->mode_stack, cpust->mode_stack->len - 1);
2011 }
2012 #ifdef BABEL_CLEANUP
2013 /* clears the stack and sets the state passed as argument */
2014 static void bdev_set_base_mode(LttvBdevState *bdevst, LttvBdevMode state)
2015 {
2016 g_array_set_size(bdevst->mode_stack, 1);
2017 ((GQuark *)bdevst->mode_stack->data)[0] = state;
2018 }
2019
2020 static void bdev_push_mode(LttvBdevState *bdevst, LttvBdevMode state)
2021 {
2022 g_array_set_size(bdevst->mode_stack, bdevst->mode_stack->len + 1);
2023 ((GQuark *)bdevst->mode_stack->data)[bdevst->mode_stack->len - 1] = state;
2024 }
2025
2026 static void bdev_pop_mode(LttvBdevState *bdevst)
2027 {
2028 if(bdevst->mode_stack->len <= 1)
2029 bdev_set_base_mode(bdevst, LTTV_BDEV_UNKNOWN);
2030 else
2031 g_array_set_size(bdevst->mode_stack, bdevst->mode_stack->len - 1);
2032 }
2033 #endif
2034 static void irq_set_base_mode(LttvIRQState *irqst, LttvIRQMode state)
2035 {
2036 g_array_set_size(irqst->mode_stack, 1);
2037 ((GQuark *)irqst->mode_stack->data)[0] = state;
2038 }
2039
2040 static void irq_push_mode(LttvIRQState *irqst, LttvIRQMode state)
2041 {
2042 g_array_set_size(irqst->mode_stack, irqst->mode_stack->len + 1);
2043 ((GQuark *)irqst->mode_stack->data)[irqst->mode_stack->len - 1] = state;
2044 }
2045
2046 static void irq_pop_mode(LttvIRQState *irqst)
2047 {
2048 if(irqst->mode_stack->len <= 1)
2049 irq_set_base_mode(irqst, LTTV_IRQ_UNKNOWN);
2050 else
2051 g_array_set_size(irqst->mode_stack, irqst->mode_stack->len - 1);
2052 }
2053
2054 static void push_state(LttvEvent *event,
2055 LttvTraceState *ts, LttvExecutionMode t,
2056 guint state_id)
2057 {
2058 LttvExecutionState *es;
2059 gint cpu;
2060
2061 cpu = lttv_traceset_get_cpuid_from_event(event);
2062 g_assert(cpu >= 0);
2063
2064 #ifdef HASH_TABLE_DEBUG
2065 hash_table_check(ts->processes);
2066 #endif
2067 LttvProcessState *process = ts->running_process[cpu];
2068
2069 guint depth = process->execution_stack->len;
2070
2071 process->execution_stack =
2072 g_array_set_size(process->execution_stack, depth + 1);
2073 /* Keep in sync */
2074 process->state =
2075 &g_array_index(process->execution_stack, LttvExecutionState, depth - 1);
2076
2077 es = &g_array_index(process->execution_stack, LttvExecutionState, depth);
2078 es->t = t;
2079 es->n = state_id;
2080 es->entry = es->change = lttv_event_get_timestamp(event);
2081 es->cum_cpu_time = ltt_time_zero;
2082 es->s = process->state->s;
2083 process->state = es;
2084 }
2085
2086 /* pop state
2087 * return 1 when empty, else 0 */
2088 int
2089 lttv_state_pop_state_cleanup(LttvProcessState *process, LttvEvent *event)
2090 {
2091 guint depth = process->execution_stack->len;
2092
2093 if(depth == 1){
2094 return 1;
2095 }
2096
2097 process->execution_stack =
2098 g_array_set_size(process->execution_stack, depth - 1);
2099 process->state = &g_array_index(process->execution_stack, LttvExecutionState,
2100 depth - 2);
2101 process->state->change = lttv_event_get_timestamp(event);
2102
2103 return 0;
2104 }
2105
2106 static void pop_state(LttvEvent *event,
2107 LttvTraceState *ts, LttvExecutionMode t)
2108 {
2109 LttvProcessState *process;
2110 gint cpu;
2111
2112 cpu = lttv_traceset_get_cpuid_from_event(event);
2113 g_assert(cpu >= 0);
2114 process = ts->running_process[cpu];
2115
2116 guint depth = process->execution_stack->len;
2117
2118 if(process->state->t != t){
2119 g_info("Different execution mode type: ignore it\n"
2120 );
2121
2122 g_info("process state has %s when pop_int is %s\n",
2123 g_quark_to_string(process->state->t),
2124 g_quark_to_string(t));
2125 g_info("{ %u, %u, %s, %s }\n",
2126 process->pid,
2127 process->ppid,
2128 g_quark_to_string(process->name),
2129 g_quark_to_string(process->state->s));
2130 return;
2131 }
2132
2133 if(depth == 1){
2134 //TODO ybrosseau readd debug
2135 //g_info("Trying to pop last state on stack (%lu.%09lu): ignore it\n",
2136 // tfs->parent.timestamp.tv_sec, tfs->parent.timestamp.tv_nsec);
2137 g_info("Trying to pop last state on stack: ignore it\n");
2138 return;
2139 }
2140
2141 process->execution_stack =
2142 g_array_set_size(process->execution_stack, depth - 1);
2143
2144 process->state = &g_array_index(process->execution_stack, LttvExecutionState,
2145 depth - 2);
2146 process->state->change = lttv_event_get_timestamp(event);
2147
2148 if((process->state->t == LTTV_STATE_MODE_UNKNOWN) && (t == LTTV_STATE_SYSCALL)) {
2149 //Force state at running
2150 process->state->t = LTTV_STATE_USER_MODE;
2151 process->state->s = LTTV_STATE_RUN;
2152 }
2153 }
2154
2155 struct search_result {
2156 const LttTime *time; /* Requested time */
2157 LttTime *best; /* Best result */
2158 };
2159
2160 /* Return a new and initialized LttvProcessState structure */
2161
2162 LttvProcessState *lttv_state_create_process(LttvTraceState *tcs,
2163 LttvProcessState *parent, guint cpu, guint pid,
2164 guint tgid, GQuark name, const LttTime *timestamp)
2165 {
2166 LttvProcessState *process = g_new(LttvProcessState, 1);
2167
2168 LttvExecutionState *es;
2169
2170 char buffer[128];
2171
2172 process->pid = pid;
2173 process->tgid = tgid;
2174 process->cpu = cpu;
2175 process->name = name;
2176 //process->last_cpu = tfs->cpu_name;
2177 //process->last_cpu_index = ltt_tracefile_num(((LttvTracefileContext*)tfs)->tf);
2178 process->type = LTTV_STATE_USER_THREAD;
2179
2180 g_info("Process %u, core %p", process->pid, process);
2181 g_hash_table_insert(tcs->processes, process, process);
2182
2183 if(parent) {
2184 process->ppid = parent->pid;
2185 process->creation_time = *timestamp;
2186 }
2187
2188 /* No parent. This process exists but we are missing all information about
2189 its creation. The birth time is set to zero but we remember the time of
2190 insertion */
2191
2192 else {
2193 process->ppid = 0;
2194 process->creation_time = ltt_time_zero;
2195 }
2196
2197 process->insertion_time = *timestamp;
2198 sprintf(buffer,"%d-%lu.%lu",pid, process->creation_time.tv_sec,
2199 process->creation_time.tv_nsec);
2200 process->pid_time = g_quark_from_string(buffer);
2201 process->cpu = cpu;
2202 process->free_events = 0;
2203 //process->last_cpu = tfs->cpu_name;
2204 //process->last_cpu_index = ltt_tracefile_num(((LttvTracefileContext*)tfs)->tf);
2205 process->execution_stack = g_array_sized_new(FALSE, FALSE,
2206 sizeof(LttvExecutionState), PREALLOCATED_EXECUTION_STACK);
2207 process->execution_stack = g_array_set_size(process->execution_stack, 2);
2208 es = process->state = &g_array_index(process->execution_stack,
2209 LttvExecutionState, 0);
2210 es->t = LTTV_STATE_USER_MODE;
2211 es->n = LTTV_STATE_SUBMODE_NONE;
2212 es->entry = *timestamp;
2213 //g_assert(timestamp->tv_sec != 0);
2214 es->change = *timestamp;
2215 es->cum_cpu_time = ltt_time_zero;
2216 es->s = LTTV_STATE_RUN;
2217
2218 es = process->state = &g_array_index(process->execution_stack,
2219 LttvExecutionState, 1);
2220 es->t = LTTV_STATE_SYSCALL;
2221 es->n = LTTV_STATE_SUBMODE_NONE;
2222 es->entry = *timestamp;
2223 //g_assert(timestamp->tv_sec != 0);
2224 es->change = *timestamp;
2225 es->cum_cpu_time = ltt_time_zero;
2226 es->s = LTTV_STATE_WAIT_FORK;
2227
2228 /* Allocate an empty function call stack. If it's empty, use 0x0. */
2229 #ifdef BABEL_CLEANUP
2230 //process->user_stack = g_array_sized_new(FALSE, FALSE,
2231 // sizeof(guint64), 0);
2232 #endif
2233 process->fds = g_hash_table_new(g_direct_hash, g_direct_equal);
2234
2235 return process;
2236 }
2237
2238 LttvProcessState *
2239 lttv_state_find_process(LttvTraceState *ts, guint cpu, guint pid)
2240 {
2241 LttvProcessState key;
2242 LttvProcessState *process;
2243
2244 key.pid = pid;
2245 key.cpu = cpu;
2246 process = g_hash_table_lookup(ts->processes, &key);
2247 return process;
2248 }
2249
2250 LttvProcessState *lttv_state_find_process_or_create(LttvTraceState *ts,
2251 guint cpu, guint pid, const LttTime *timestamp)
2252 {
2253 LttvProcessState *process = lttv_state_find_process(ts, cpu, pid);
2254 LttvExecutionState *es;
2255
2256 /* Put ltt_time_zero creation time for unexisting processes */
2257 if(unlikely(process == NULL)) {
2258 process = lttv_state_create_process(ts,
2259 NULL, cpu, pid, 0, LTTV_STATE_UNNAMED, timestamp);
2260 /* We are not sure is it's a kernel thread or normal thread, put the
2261 * bottom stack state to unknown */
2262 process->execution_stack =
2263 g_array_set_size(process->execution_stack, 1);
2264 process->state = es =
2265 &g_array_index(process->execution_stack, LttvExecutionState, 0);
2266 es->t = LTTV_STATE_MODE_UNKNOWN;
2267 es->s = LTTV_STATE_UNNAMED;
2268 }
2269 return process;
2270 }
2271
2272 /* FIXME : this function should be called when we receive an event telling that
2273 * release_task has been called in the kernel. In happens generally when
2274 * the parent waits for its child termination, but may also happens in special
2275 * cases in the child's exit : when the parent ignores its children SIGCCHLD or
2276 * has the flag SA_NOCLDWAIT. It can also happen when the child is part
2277 * of a killed thread group, but isn't the leader.
2278 */
2279 static int exit_process(LttvEvent *event, LttvProcessState *process)
2280 {
2281 LttvTraceState *ts = event->state;
2282 LttvProcessState key;
2283
2284 /* Wait for both schedule with exit dead and process free to happen.
2285 * They can happen in any order. */
2286 if (++(process->free_events) < 2)
2287 return 0;
2288
2289 key.pid = process->pid;
2290 key.cpu = process->cpu;
2291 g_hash_table_remove(ts->processes, &key);
2292 g_array_free(process->execution_stack, TRUE);
2293
2294 /* the following also clears the content */
2295 g_hash_table_destroy(process->fds);
2296
2297 g_free(process);
2298 return 1;
2299 }
2300
2301
2302 static void free_process_state(gpointer key, gpointer value,gpointer user_data)
2303 {
2304 g_array_free(((LttvProcessState *)value)->execution_stack, TRUE);
2305
2306 /* the following also clears the content */
2307 g_hash_table_destroy(((LttvProcessState *)value)->fds);
2308
2309 g_free(value);
2310 }
2311
2312
2313 static void lttv_state_free_process_table(GHashTable *processes)
2314 {
2315 g_hash_table_foreach(processes, free_process_state, NULL);
2316 g_hash_table_destroy(processes);
2317 }
2318
2319
2320 static gboolean syscall_entry(void *hook_data, void *call_data)
2321 {
2322 LttvEvent *event;
2323 guint cpu;
2324 LttvTraceState *ts;
2325 LttvProcessState *process;
2326 LttvExecutionSubmode submode;
2327 char syscall_name[200];
2328
2329 event = (LttvEvent *) call_data;
2330 if (strncmp(lttv_traceset_get_name_from_event(event),
2331 "sys_", sizeof("sys_") - 1) != 0)
2332 return FALSE;
2333
2334 strncpy(syscall_name,lttv_traceset_get_name_from_event(event)+4,200);
2335
2336 cpu = lttv_traceset_get_cpuid_from_event(event);
2337 ts = event->state;
2338 process = ts->running_process[cpu];
2339
2340 submode = g_quark_from_string(syscall_name);
2341 /* There can be no system call from PID 0 : unknown state */
2342 if(process->pid != 0)
2343 push_state(event, ts, LTTV_STATE_SYSCALL, submode);
2344 return FALSE;
2345 }
2346
2347
2348 static gboolean syscall_exit(void *hook_data, void *call_data)
2349 {
2350 LttvEvent *event;
2351 guint cpu;
2352 LttvTraceState *ts;
2353 LttvProcessState *process;
2354
2355
2356 event = (LttvEvent *) call_data;
2357 if (strcmp(lttv_traceset_get_name_from_event(event),
2358 "exit_syscall") != 0)
2359 return FALSE;
2360
2361 cpu = lttv_traceset_get_cpuid_from_event(event);
2362 ts = event->state;
2363 process = ts->running_process[cpu];
2364
2365 /* There can be no system call from PID 0 : unknown state */
2366 if (process->pid != 0)
2367 pop_state(event, ts, LTTV_STATE_SYSCALL);
2368 return FALSE;
2369 }
2370
2371 #ifdef BABEL_CLEANUP
2372 static gboolean trap_entry(void *hook_data, void *call_data)
2373 {
2374 LttvTracefileState *s = (LttvTracefileState *)call_data;
2375 LttvTraceState *ts = (LttvTraceState *)s->parent.t_context;
2376 LttEvent *e = ltt_tracefile_get_event(s->parent.tf);
2377 LttvTraceHook *th = (LttvTraceHook *)hook_data;
2378 struct marker_field *f = lttv_trace_get_hook_field(th, 0);
2379 LttvNameTables *nt = ((LttvTraceState *)(s->parent.t_context))->name_tables;
2380
2381 LttvExecutionSubmode submode;
2382
2383 guint64 trap = ltt_event_get_long_unsigned(e, f);
2384
2385 expand_trap_table(ts, trap);
2386
2387 submode = nt->trap_names[trap];
2388
2389 push_state(s, LTTV_STATE_TRAP, submode);
2390
2391 /* update cpu status */
2392 cpu_push_mode(s->cpu_state, LTTV_CPU_TRAP);
2393
2394 /* update trap status */
2395 g_array_append_val(s->cpu_state->trap_stack, trap);
2396 ts->trap_states[trap].running++;
2397
2398 return FALSE;
2399 }
2400
2401 static gboolean trap_exit(void *hook_data, void *call_data)
2402 {
2403 LttvTracefileState *s = (LttvTracefileState *)call_data;
2404 LttvTraceState *ts = (LttvTraceState *)s->parent.t_context;
2405
2406 pop_state(s, LTTV_STATE_TRAP);
2407
2408 /* update cpu status */
2409 cpu_pop_mode(s->cpu_state);
2410
2411 /* update trap status */
2412 if (s->cpu_state->trap_stack->len > 0) {
2413 gint last = g_array_index(s->cpu_state->trap_stack, gint,
2414 s->cpu_state->trap_stack->len-1);
2415 if(ts->trap_states[last].running)
2416 ts->trap_states[last].running--;
2417 g_array_remove_index(s->cpu_state->trap_stack,
2418 s->cpu_state->trap_stack->len-1);
2419 }
2420 return FALSE;
2421 }
2422 #endif /* BABEL_CLEANUP */
2423
2424 static gboolean irq_entry(void *hook_data, void *call_data)
2425 {
2426 LttvEvent *event;
2427 guint cpu;
2428 LttvTraceState *ts;
2429
2430 LttvExecutionSubmode submode;
2431 LttvNameTables *nt;
2432 guint64 irq;
2433
2434 event = (LttvEvent *) call_data;
2435 if (strcmp(lttv_traceset_get_name_from_event(event),
2436 "irq_handler_entry") != 0)
2437 return FALSE;
2438
2439 cpu = lttv_traceset_get_cpuid_from_event(event);
2440 ts = event->state;
2441
2442 nt = ts->name_tables;
2443 irq = lttv_event_get_long(event, "irq");
2444
2445 expand_irq_table(ts, irq);
2446
2447 submode = nt->irq_names[irq];
2448
2449 /* Do something with the info about being in user or system mode when int? */
2450 push_state(event, ts, LTTV_STATE_IRQ, submode);
2451
2452 /* update cpu status */
2453 cpu_push_mode(&(ts->cpu_states[cpu]), LTTV_CPU_IRQ);
2454
2455 /* update irq status */
2456 g_array_append_val(ts->cpu_states[cpu].irq_stack, irq);
2457 irq_push_mode(&ts->irq_states[irq], LTTV_IRQ_BUSY);
2458
2459 return FALSE;
2460 }
2461
2462 static gboolean soft_irq_exit(void *hook_data, void *call_data)
2463 {
2464 LttvEvent *event;
2465 guint cpu;
2466 LttvTraceState *ts;
2467
2468 LttvCPUState *cpu_state;
2469
2470 event = (LttvEvent *) call_data;
2471 if (strcmp(lttv_traceset_get_name_from_event(event),
2472 "softirq_exit") != 0)
2473 return FALSE;
2474
2475 cpu = lttv_traceset_get_cpuid_from_event(event);
2476 ts = event->state;
2477
2478 cpu_state = &(ts->cpu_states[cpu]);
2479 pop_state(event, ts, LTTV_STATE_SOFT_IRQ);
2480
2481 /* update cpu status */
2482 cpu_pop_mode(cpu_state);
2483
2484 /* update softirq status */
2485 if (cpu_state->softirq_stack->len > 0) {
2486 gint last = g_array_index(cpu_state->softirq_stack, gint, cpu_state->softirq_stack->len-1);
2487 if(ts->soft_irq_states[last].running)
2488 ts->soft_irq_states[last].running--;
2489 g_array_remove_index(cpu_state->softirq_stack, cpu_state->softirq_stack->len-1);
2490 }
2491 return FALSE;
2492 }
2493
2494 static gboolean irq_exit(void *hook_data, void *call_data)
2495 {
2496 LttvEvent *event;
2497 guint cpu;
2498 LttvTraceState *ts;
2499
2500 LttvCPUState *cpu_state;
2501
2502 event = (LttvEvent *) call_data;
2503 if (strcmp(lttv_traceset_get_name_from_event(event),
2504 "irq_handler_exit") != 0)
2505 return FALSE;
2506
2507 cpu = lttv_traceset_get_cpuid_from_event(event);
2508 ts = event->state;
2509 cpu_state = &(ts->cpu_states[cpu]);
2510
2511 pop_state(event, ts, LTTV_STATE_IRQ);
2512
2513 /* update cpu status */
2514 cpu_pop_mode(cpu_state);
2515
2516 /* update irq status */
2517 if (cpu_state->irq_stack->len > 0) {
2518 gint last = g_array_index(cpu_state->irq_stack, gint, cpu_state->irq_stack->len-1);
2519 g_array_remove_index(cpu_state->irq_stack, cpu_state->irq_stack->len-1);
2520 irq_pop_mode(&ts->irq_states[last]);
2521 }
2522
2523 return FALSE;
2524 }
2525
2526 static gboolean soft_irq_raise(void *hook_data, void *call_data)
2527 {
2528 LttvEvent *event;
2529 //guint cpu;
2530 LttvTraceState *ts;
2531
2532
2533 guint64 softirq;
2534 event = (LttvEvent *) call_data;
2535 if (strcmp(lttv_traceset_get_name_from_event(event),
2536 "softirq_raise") != 0)
2537 return FALSE;
2538
2539 //cpu = lttv_traceset_get_cpuid_from_event(event);
2540 ts = event->state;
2541 softirq = lttv_event_get_long_unsigned(event, "vec");
2542
2543 expand_soft_irq_table(ts, softirq);
2544
2545 /* update softirq status */
2546 /* a soft irq raises are not cumulative */
2547 ts->soft_irq_states[softirq].pending=1;
2548
2549 return FALSE;
2550 }
2551
2552 static gboolean soft_irq_entry(void *hook_data, void *call_data)
2553 {
2554 LttvEvent *event;
2555 guint cpu;
2556 LttvTraceState *ts;
2557 LttvExecutionSubmode submode;
2558 LttvNameTables *nt;
2559 guint64 softirq;
2560
2561 event = (LttvEvent *) call_data;
2562 if (strcmp(lttv_traceset_get_name_from_event(event),
2563 "softirq_entry") != 0)
2564 return FALSE;
2565
2566 cpu = lttv_traceset_get_cpuid_from_event(event);
2567 ts = event->state;
2568
2569
2570
2571
2572 softirq = lttv_event_get_long_unsigned(event, "vec");
2573 expand_soft_irq_table(ts, softirq);
2574 nt = ts->name_tables;
2575 submode = nt->soft_irq_names[softirq];
2576
2577 /* Do something with the info about being in user or system mode when int? */
2578 push_state(event, ts, LTTV_STATE_SOFT_IRQ, submode);
2579
2580 /* update cpu status */
2581 cpu_push_mode(&(ts->cpu_states[cpu]), LTTV_CPU_SOFT_IRQ);
2582
2583 /* update softirq status */
2584 g_array_append_val(ts->cpu_states[cpu].softirq_stack, softirq);
2585 if (ts->soft_irq_states[softirq].pending)
2586 ts->soft_irq_states[softirq].pending--;
2587 ts->soft_irq_states[softirq].running++;
2588
2589 return FALSE;
2590 }
2591
2592 static gboolean enum_interrupt(void *hook_data, void *call_data)
2593 {
2594 LttvEvent *event;
2595 LttvTraceState *ts;
2596
2597 LttvNameTables *nt;
2598
2599
2600 GQuark action;
2601 guint irq;
2602 event = (LttvEvent *) call_data;
2603 if (strcmp(lttv_traceset_get_name_from_event(event),
2604 "lttng_statedump_interrupt") != 0)
2605 return FALSE;
2606 ts = event->state;
2607
2608 nt = ts->name_tables;
2609 irq = lttv_event_get_long_unsigned(event, "irq");
2610 action = g_quark_from_string(lttv_event_get_string(event,
2611 "action"));
2612 expand_irq_table(ts, irq);
2613 nt->irq_names[irq] = action;
2614
2615 return FALSE;
2616 }
2617
2618 #ifdef BABEL_CLEANUP
2619 static gboolean bdev_request_issue(void *hook_data, void *call_data)
2620 {
2621 LttvEvent *event;
2622 LttvTraceState *ts;
2623
2624 guint major;
2625 guint minor;
2626 guint oper;
2627 guint32 devcode;
2628 gpointer bdev;
2629
2630 event = (LttvEvent *) call_data;
2631 if (strcmp(lttv_traceset_get_name_from_event(event),
2632 "block_rq_issue") != 0)
2633 return FALSE;
2634
2635 ts = event->state;
2636 major = lttv_event_get_long_unsigned(event,);
2637
2638 minor = lttv_event_get_long_unsigned(event,);
2639
2640 oper = lttv_event_get_long_unsigned(event,);
2641
2642 devcode = MKDEV(major,minor);
2643
2644 /* have we seen this block device before? */
2645 bdev = get_hashed_bdevstate(ts, devcode);
2646 if(oper == 0)
2647 bdev_push_mode(bdev, LTTV_BDEV_BUSY_READING);
2648 else
2649 bdev_push_mode(bdev, LTTV_BDEV_BUSY_WRITING);
2650
2651 return FALSE;
2652 }
2653
2654 static gboolean bdev_request_complete(void *hook_data, void *call_data)
2655 {
2656 LttvTracefileState *s = (LttvTracefileState *)call_data;
2657 LttvTraceState *ts = (LttvTraceState *)s->parent.t_context;
2658 LttEvent *e = ltt_tracefile_get_event(s->parent.tf);
2659 LttvTraceHook *th = (LttvTraceHook *)hook_data;
2660
2661 guint major = ltt_event_get_long_unsigned(e,
2662 lttv_trace_get_hook_field(th, 0));
2663 guint minor = ltt_event_get_long_unsigned(e,
2664 lttv_trace_get_hook_field(th, 1));
2665 //guint oper = ltt_event_get_long_unsigned(e,
2666 // lttv_trace_get_hook_field(th, 2));
2667 guint32 devcode = MKDEV(major,minor);
2668
2669 /* have we seen this block device before? */
2670 gpointer bdev = get_hashed_bdevstate(ts, devcode);
2671
2672 /* update block device */
2673 bdev_pop_mode(bdev);
2674
2675 return FALSE;
2676 }
2677 #endif
2678 #ifdef BABEL_CLEANUP
2679 // We dont have the syscall table in LTTng 2.0
2680 static gboolean dump_syscall(void *hook_data, void *call_data)
2681 {
2682 LttvTracefileState *s = (LttvTracefileState *)call_data;
2683 LttvTraceState *ts = (LttvTraceState*)s->parent.t_context;
2684 LttvNameTables *nt = ts->name_tables;
2685 LttEvent *e = ltt_tracefile_get_event(s->parent.tf);
2686 LttvTraceHook *th = (LttvTraceHook *)hook_data;
2687 guint id;
2688 char *symbol;
2689
2690 id = ltt_event_get_unsigned(e, lttv_trace_get_hook_field(th, 0));
2691 symbol = ltt_event_get_string(e, lttv_trace_get_hook_field(th, 2));
2692
2693 expand_syscall_table(ts, id);
2694 nt->syscall_names[id] = g_quark_from_string(symbol);
2695
2696 return FALSE;
2697 }
2698
2699 static gboolean dump_kprobe(void *hook_data, void *call_data)
2700 {
2701 LttvTracefileState *s = (LttvTracefileState *)call_data;
2702 LttvTraceState *ts = (LttvTraceState*)s->parent.t_context;
2703 LttEvent *e = ltt_tracefile_get_event(s->parent.tf);
2704 LttvTraceHook *th = (LttvTraceHook *)hook_data;
2705 guint64 ip;
2706 char *symbol;
2707
2708 ip = ltt_event_get_long_unsigned(e, lttv_trace_get_hook_field(th, 0));
2709 symbol = ltt_event_get_string(e, lttv_trace_get_hook_field(th, 1));
2710
2711 expand_kprobe_table(ts, ip, symbol);
2712
2713 return FALSE;
2714 }
2715 #endif
2716 #ifdef BABEL_CLEANUP
2717 static gboolean dump_softirq(void *hook_data, void *call_data)
2718 {
2719
2720 LttvTracefileState *s = (LttvTracefileState *)call_data;
2721 LttvTraceState *ts = (LttvTraceState*)s->parent.t_context;
2722 LttvNameTables *nt = ts->name_tables;
2723 LttEvent *e = ltt_tracefile_get_event(s->parent.tf);
2724 LttvTraceHook *th = (LttvTraceHook *)hook_data;
2725 guint id;
2726 char *symbol;
2727
2728 id = ltt_event_get_unsigned(e, lttv_trace_get_hook_field(th, 0));
2729 symbol = ltt_event_get_string(e, lttv_trace_get_hook_field(th, 2));
2730
2731 expand_soft_irq_table(ts, id);
2732 nt->soft_irq_names[id] = g_quark_from_string(symbol);
2733
2734 return FALSE;
2735
2736 }
2737 #endif
2738 static gboolean sched_try_wakeup(void *hook_data, void *call_data)
2739 {
2740 LttvEvent *event;
2741 LttvTraceState *ts;
2742 LttvProcessState *process;
2743 gint woken_pid;
2744 guint woken_cpu;
2745 LttTime timestamp;
2746
2747 event = (LttvEvent *) call_data;
2748 if (strcmp(lttv_traceset_get_name_from_event(event),
2749 "sched_wakeup") != 0)
2750 return FALSE;
2751
2752 ts = event->state;
2753
2754 woken_pid = lttv_event_get_long(event, "tid");
2755 woken_cpu = lttv_event_get_long(event, "target_cpu");
2756
2757 timestamp = lttv_event_get_timestamp(event);
2758 process = lttv_state_find_process_or_create(
2759 ts,
2760 woken_cpu, woken_pid,
2761 &timestamp);
2762
2763 if (process->state->s == LTTV_STATE_WAIT || process->state->s == LTTV_STATE_WAIT_FORK)
2764 {
2765 process->state->s = LTTV_STATE_WAIT_CPU;
2766 process->state->change = timestamp;
2767 }
2768
2769 g_debug("Wakeup: process %d on CPU %u\n", woken_pid, woken_cpu);
2770
2771 return FALSE;
2772 }
2773
2774 static gboolean schedchange(void *hook_data, void *call_data)
2775 {
2776 LttvEvent *event;
2777 guint cpu;
2778 LttvTraceState *ts;
2779 LttvProcessState *process;
2780
2781
2782 //LttvProcessState *old_process = ts->running_process[cpu];
2783
2784 guint pid_in, pid_out;
2785 gint64 state_out;
2786 //TODO ybrosseau 2012-07-13: manage this 20 in a constact or dynamically
2787 char next_comm[20];
2788 LttTime timestamp;
2789 event = (LttvEvent *) call_data;
2790 if (strcmp(lttv_traceset_get_name_from_event(event),
2791 "sched_switch") != 0)
2792 return FALSE;
2793
2794 cpu = lttv_traceset_get_cpuid_from_event(event);
2795 ts = event->state;
2796 process = ts->running_process[cpu];
2797 pid_out = lttv_event_get_long(event, "prev_tid");
2798 pid_in = lttv_event_get_long(event, "next_tid");
2799 state_out = lttv_event_get_long(event, "prev_state");
2800
2801 strncpy(next_comm, lttv_event_get_string(event, "next_comm"), 20);
2802 next_comm[20-1] = '\0';
2803
2804 timestamp = lttv_event_get_timestamp(event);
2805
2806 if(likely(process != NULL)) {
2807
2808 /* We could not know but it was not the idle process executing.
2809 This should only happen at the beginning, before the first schedule
2810 event, and when the initial information (current process for each CPU)
2811 is missing. It is not obvious how we could, after the fact, compensate
2812 the wrongly attributed statistics. */
2813
2814 //This test only makes sense once the state is known and if there is no
2815 //missing events. We need to silently ignore schedchange coming after a
2816 //process_free, or it causes glitches. (FIXME)
2817 //if(unlikely(process->pid != pid_out)) {
2818 // g_assert(process->pid == 0);
2819 //}
2820 if(process->pid == 0
2821 && process->state->t == LTTV_STATE_MODE_UNKNOWN) {
2822 if(pid_out == 0) {
2823 /*
2824 * Scheduling out of pid 0 at beginning of the trace.
2825 * We are typically in system call mode at this point although
2826 * (FIXME) we might be in a trap handler.
2827 */
2828 g_assert(process->execution_stack->len == 1);
2829 process->state->t = LTTV_STATE_SYSCALL;
2830 process->state->s = LTTV_STATE_WAIT;
2831 process->state->change = timestamp;
2832 process->state->entry = timestamp;
2833 }
2834 } else {
2835 if(unlikely(process->state->s == LTTV_STATE_EXIT)) {
2836 process->state->s = LTTV_STATE_ZOMBIE;
2837 process->state->change = timestamp;
2838 } else {
2839 if(unlikely(state_out == 0)) process->state->s = LTTV_STATE_WAIT_CPU;
2840 else process->state->s = LTTV_STATE_WAIT;
2841 process->state->change = timestamp;
2842 }
2843
2844 if(state_out == 32 || state_out == 64) { /* EXIT_DEAD || TASK_DEAD */
2845 /* see sched.h for states */
2846 if (!exit_process(event, process)) {
2847 process->state->s = LTTV_STATE_DEAD;
2848 process->state->change = timestamp;
2849 }
2850 }
2851 }
2852 }
2853 process = ts->running_process[cpu] = lttv_state_find_process_or_create(
2854 ts,
2855 cpu, pid_in,
2856 &timestamp);
2857 process->state->s = LTTV_STATE_RUN;
2858 process->cpu = cpu;
2859 // process->last_cpu_index = ltt_tracefile_num(((LttvTracefileContext*)s)->tf);
2860 process->state->change = timestamp;
2861 process->name = g_quark_from_string(next_comm);
2862
2863 /* update cpu status */
2864 if(pid_in == 0)
2865 /* going to idle task */
2866 cpu_set_base_mode(&(ts->cpu_states[cpu]), LTTV_CPU_IDLE);
2867 else {
2868 /* scheduling a real task.
2869 * we must be careful here:
2870 * if we just schedule()'ed to a process that is
2871 * in a trap, we must put the cpu in trap mode
2872 */
2873 cpu_set_base_mode(&(ts->cpu_states[cpu]), LTTV_CPU_BUSY);
2874 if(process->state->t == LTTV_STATE_TRAP)
2875 cpu_push_mode(&(ts->cpu_states[cpu]), LTTV_CPU_TRAP);
2876 }
2877
2878 return FALSE;
2879 }
2880
2881 static gboolean process_fork(void *hook_data, void *call_data)
2882 {
2883 LttvEvent *event;
2884 LttvTraceState *ts;
2885 LttvProcessState *process;
2886 LttvProcessState *child_process;
2887 guint child_pid; /* In the Linux Kernel, there is one PID per thread. */
2888 guint child_tgid; /* tgid in the Linux kernel is the "real" POSIX PID. */
2889 //LttvProcessState *zombie_process;
2890 guint cpu;
2891 LttTime timestamp;
2892
2893 event = (LttvEvent *) call_data;
2894 if (strcmp(lttv_traceset_get_name_from_event(event),
2895 "sched_process_fork") != 0)
2896 return FALSE;
2897 cpu = lttv_traceset_get_cpuid_from_event(event);
2898 ts = event->state;
2899 process = ts->running_process[cpu];
2900 timestamp = lttv_event_get_timestamp(event);
2901
2902 /* Skip Parent PID param */
2903
2904 /* Child PID */
2905 child_pid = lttv_event_get_long(event, "child_tid");
2906 //ts->target_pid = child_pid;
2907
2908 /* Child TGID */
2909
2910 child_tgid = 0;
2911
2912 /* Mathieu : it seems like the process might have been scheduled in before the
2913 * fork, and, in a rare case, might be the current process. This might happen
2914 * in a SMP case where we don't have enough precision on the clocks.
2915 *
2916 * Test reenabled after precision fixes on time. (Mathieu) */
2917 #if 0
2918 zombie_process = lttv_state_find_process(ts, ANY_CPU, child_pid);
2919
2920 if(unlikely(zombie_process != NULL)) {
2921 /* Reutilisation of PID. Only now we are sure that the old PID
2922 * has been released. FIXME : should know when release_task happens instead.
2923 */
2924 guint num_cpus = ltt_trace_get_num_cpu(ts->parent.t);
2925 guint i;
2926 for(i=0; i< num_cpus; i++) {
2927 g_assert(zombie_process != ts->running_process[i]);
2928 }
2929
2930 exit_process(s, zombie_process);
2931 }
2932 #endif //0
2933 g_assert(process->pid != child_pid);
2934 // FIXME : Add this test in the "known state" section
2935 // g_assert(process->pid == parent_pid);
2936 child_process = lttv_state_find_process(ts, ANY_CPU, child_pid);
2937 if(child_process == NULL) {
2938 child_process = lttv_state_create_process(ts, process, cpu,
2939 child_pid, child_tgid,
2940 LTTV_STATE_UNNAMED, &timestamp);
2941 } else {
2942 /* The process has already been created : due to time imprecision between
2943 * multiple CPUs : it has been scheduled in before creation. Note that we
2944 * shouldn't have this kind of imprecision.
2945 *
2946 * Simply put a correct parent.
2947 */
2948 g_error("Process %u has been created at [%lu.%09lu] "
2949 "and inserted at [%lu.%09lu] before \n"
2950 "fork on cpu %u[%lu.%09lu].\n"
2951 "Probably an unsynchronized TSC problem on the traced machine.",
2952 child_pid,
2953 child_process->creation_time.tv_sec,
2954 child_process->creation_time.tv_nsec,
2955 child_process->insertion_time.tv_sec,
2956 child_process->insertion_time.tv_nsec,
2957 cpu, timestamp.tv_sec, timestamp.tv_nsec);
2958 //g_assert(0); /* This is a problematic case : the process has been created
2959 // before the fork event */
2960 child_process->ppid = process->pid;
2961 child_process->tgid = child_tgid;
2962 }
2963 g_assert(child_process->name == LTTV_STATE_UNNAMED);
2964 child_process->name = process->name;
2965
2966 return FALSE;
2967 }
2968
2969 #ifdef BABEL_CLEANUP
2970 //NO KTHREAD_CREATE in LTTng 2.0
2971 /* We stamp a newly created process as kernel_thread.
2972 * The thread should not be running yet. */
2973 static gboolean process_kernel_thread(void *hook_data, void *call_data)
2974 {
2975 LttvTracefileState *s = (LttvTracefileState *)call_data;
2976 LttEvent *e = ltt_tracefile_get_event(s->parent.tf);
2977 LttvTraceHook *th = (LttvTraceHook *)hook_data;
2978 guint pid;
2979 LttvTraceState *ts = (LttvTraceState*)s->parent.t_context;
2980 LttvProcessState *process;
2981 LttvExecutionState *es;
2982
2983 /* PID */
2984 pid = (guint)ltt_event_get_long_unsigned(e, lttv_trace_get_hook_field(th, 0));
2985 //s->parent.target_pid = pid;
2986
2987 process = lttv_state_find_process_or_create(ts, ANY_CPU, pid,
2988 &ltt_time_zero);
2989 if (process->state->s != LTTV_STATE_DEAD) {
2990 process->execution_stack =
2991 g_array_set_size(process->execution_stack, 1);
2992 es = process->state =
2993 &g_array_index(process->execution_stack, LttvExecutionState, 0);
2994 es->t = LTTV_STATE_SYSCALL;
2995 }
2996 process->type = LTTV_STATE_KERNEL_THREAD;
2997
2998 return FALSE;
2999 }
3000 #endif
3001 static gboolean process_exit(void *hook_data, void *call_data)
3002 {
3003 LttvEvent *event;
3004 LttvTraceState *ts;
3005 guint pid;
3006 guint cpu;
3007 LttvProcessState *process; // = ts->running_process[cpu];
3008
3009 event = (LttvEvent *) call_data;
3010 if (strcmp(lttv_traceset_get_name_from_event(event),
3011 "sched_process_exit") != 0)
3012 return FALSE;
3013 cpu = lttv_traceset_get_cpuid_from_event(event);
3014 ts = event->state;
3015 process = ts->running_process[cpu];
3016
3017 pid = lttv_event_get_long(event, "tid");
3018 //s->parent.target_pid = pid;
3019
3020 // FIXME : Add this test in the "known state" section
3021 // g_assert(process->pid == pid);
3022
3023 process = lttv_state_find_process(ts, ANY_CPU, pid);
3024 if(likely(process != NULL)) {
3025 process->state->s = LTTV_STATE_EXIT;
3026 }
3027 return FALSE;
3028 }
3029
3030 static gboolean process_free(void *hook_data, void *call_data)
3031 {
3032 LttvEvent *event;
3033 LttvTraceState *ts;
3034 guint cpu;
3035 guint release_pid;
3036 LttvProcessState *process;
3037
3038 event = (LttvEvent *) call_data;
3039 if (strcmp(lttv_traceset_get_name_from_event(event),
3040 "sched_process_free") != 0)
3041 return FALSE;
3042 cpu = lttv_traceset_get_cpuid_from_event(event);
3043 ts = event->state;
3044 process = ts->running_process[cpu];
3045
3046 /* PID of the process to release */
3047 release_pid = lttv_event_get_long(event, "_tid");
3048 //s->parent.target_pid = release_pid;
3049
3050 g_assert(release_pid != 0);
3051
3052 process = lttv_state_find_process(ts, ANY_CPU, release_pid);
3053 if(likely(process != NULL))
3054 exit_process(event, process);
3055 return FALSE;
3056 //DISABLED
3057 #if 0
3058 if(likely(process != NULL)) {
3059 /* release_task is happening at kernel level : we can now safely release
3060 * the data structure of the process */
3061 //This test is fun, though, as it may happen that
3062 //at time t : CPU 0 : process_free
3063 //at time t+150ns : CPU 1 : schedule out
3064 //Clearly due to time imprecision, we disable it. (Mathieu)
3065 //If this weird case happen, we have no choice but to put the
3066 //Currently running process on the cpu to 0.
3067 //I re-enable it following time precision fixes. (Mathieu)
3068 //Well, in the case where an process is freed by a process on another CPU
3069 //and still scheduled, it happens that this is the schedchange that will
3070 //drop the last reference count. Do not free it here!
3071 guint num_cpus = ltt_trace_get_num_cpu(ts->parent.t);
3072 guint i;
3073 for(i=0; i< num_cpus; i++) {
3074 //g_assert(process != ts->running_process[i]);
3075 if(process == ts->running_process[i]) {
3076 //ts->running_process[i] = lttv_state_find_process(ts, i, 0);
3077 break;
3078 }
3079 }
3080 if(i == num_cpus) /* process is not scheduled */
3081 exit_process(s, process);
3082 }
3083
3084 return FALSE;
3085 #endif //DISABLED
3086 }
3087
3088
3089 static gboolean process_exec(void *hook_data, void *call_data)
3090 {
3091 LttvEvent *event;
3092 LttvTraceState *ts;
3093 guint cpu;
3094 //gchar *name;
3095 LttvProcessState *process;
3096
3097 event = (LttvEvent *) call_data;
3098 if (strcmp(lttv_traceset_get_name_from_event(event),
3099 "sys_execve") != 0)
3100 return FALSE;
3101 cpu = lttv_traceset_get_cpuid_from_event(event);
3102 ts = event->state;
3103 process = ts->running_process[cpu];
3104
3105 #if 0//how to use a sequence that must be transformed in a string
3106 /* PID of the process to release */
3107 guint64 name_len = ltt_event_field_element_number(e,
3108 lttv_trace_get_hook_field(th, 0));
3109 //name = ltt_event_get_string(e, lttv_trace_get_hook_field(th, 0));
3110 LttField *child = ltt_event_field_element_select(e,
3111 lttv_trace_get_hook_field(th, 0), 0);
3112 gchar *name_begin =
3113 (gchar*)(ltt_event_data(e)+ltt_event_field_offset(e, child));
3114 gchar *null_term_name = g_new(gchar, name_len+1);
3115 memcpy(null_term_name, name_begin, name_len);
3116 null_term_name[name_len] = '\0';
3117 process->name = g_quark_from_string(null_term_name);
3118 #endif //0
3119
3120 process->name = g_quark_from_string(lttv_event_get_string(event,
3121 "filename"));
3122 //g_free(null_term_name);
3123 return FALSE;
3124 }
3125 #if 0
3126 // TODO We only have sys_open, without the FD
3127 // manage to do somehting better
3128 static gboolean fs_open(void *hook_data, void *call_data)
3129 {
3130 LttvTracefileState *s = (LttvTracefileState *)call_data;
3131 LttvTraceState *ts = (LttvTraceState *)s->parent.t_context;
3132 LttEvent *e = ltt_tracefile_get_event(s->parent.tf);
3133 LttvTraceHook *th = (LttvTraceHook *)hook_data;
3134 struct marker_field *f;
3135 guint cpu = s->cpu;
3136 int fd;
3137 char *filename;
3138 LttvProcessState *process = ts->running_process[cpu];
3139
3140 f = lttv_trace_get_hook_field(th, 0);
3141 fd = ltt_event_get_int(e, f);
3142
3143 f = lttv_trace_get_hook_field(th, 1);
3144 filename = ltt_event_get_string(e, f);
3145
3146 g_hash_table_insert(process->fds, (gpointer)(long)fd,
3147 (gpointer)(unsigned long)g_quark_from_string(filename));
3148
3149 return FALSE;
3150 }
3151 #endif
3152 static void print_stack(LttvProcessState *process)
3153 {
3154 LttvExecutionState *es;
3155 int i;
3156
3157 g_debug("Execution stack for process %u %s:\n",
3158 process->pid, g_quark_to_string(process->name));
3159
3160 for (i = 0; i < process->execution_stack->len; i++) {
3161 es = &g_array_index(process->execution_stack,
3162 LttvExecutionState, i);
3163 g_debug("Depth %d mode %s submode %s status %s\n",
3164 i, g_quark_to_string(es->t),
3165 g_quark_to_string(es->n),
3166 g_quark_to_string(es->s));
3167 }
3168
3169 }
3170
3171 static void fix_process(gpointer key, gpointer value, gpointer user_data)
3172 {
3173 LttvProcessState *process;
3174 LttvExecutionState *es;
3175 process = (LttvProcessState *)value;
3176 LttTime *timestamp = (LttTime*)user_data;
3177
3178 print_stack(process);
3179
3180 if(process->type == LTTV_STATE_KERNEL_THREAD) {
3181 es = &g_array_index(process->execution_stack, LttvExecutionState, 0);
3182 if(es->t == LTTV_STATE_MAYBE_SYSCALL) {
3183 es->t = LTTV_STATE_SYSCALL;
3184 es->n = LTTV_STATE_SUBMODE_NONE;
3185 es->entry = *timestamp;
3186 es->change = *timestamp;
3187 es->cum_cpu_time = ltt_time_zero;
3188 if(es->s == LTTV_STATE_UNNAMED)
3189 es->s = LTTV_STATE_WAIT;
3190 }
3191 } else {
3192 es = &g_array_index(process->execution_stack, LttvExecutionState, 0);
3193 if(es->t == LTTV_STATE_MAYBE_USER_MODE) {
3194 es->t = LTTV_STATE_USER_MODE;
3195 es->n = LTTV_STATE_SUBMODE_NONE;
3196 es->entry = *timestamp;
3197 //g_assert(timestamp->tv_sec != 0);
3198 es->change = *timestamp;
3199 es->cum_cpu_time = ltt_time_zero;
3200 if(es->s == LTTV_STATE_UNNAMED)
3201 es->s = LTTV_STATE_RUN;
3202
3203 if(process->execution_stack->len == 1) {
3204 /* Still in bottom unknown mode, means we either:
3205 * - never did a system call
3206 * - are scheduled out from user mode.
3207 * May be either in user mode, syscall mode, running or waiting.*/
3208 /* CHECK : we may be tagging syscall mode when being user mode
3209 * (should be fixed now) */
3210 if (es->s == LTTV_STATE_WAIT_CPU) {
3211 /* nothing to do: scheduled out from userspace */
3212 } else {
3213 process->execution_stack =
3214 g_array_set_size(process->execution_stack, 2);
3215 es = process->state = &g_array_index(process->execution_stack,
3216 LttvExecutionState, 1);
3217 es->t = LTTV_STATE_SYSCALL;
3218 es->n = LTTV_STATE_SUBMODE_NONE;
3219 es->entry = *timestamp;
3220 //g_assert(timestamp->tv_sec != 0);
3221 es->change = *timestamp;
3222 es->cum_cpu_time = ltt_time_zero;
3223 if(es->s == LTTV_STATE_WAIT_FORK)
3224 es->s = LTTV_STATE_WAIT;
3225 }
3226 }
3227 }
3228 }
3229 }
3230
3231 static gboolean statedump_end(void *hook_data, void *call_data)
3232 {
3233 LttvEvent *event;
3234 LttvTraceState *ts;
3235 LttTime timestamp;
3236 //LttEvent *e = ltt_tracefile_get_event(s->parent.tf);
3237 //LttvTraceHook *th = (LttvTraceHook *)hook_data;
3238 event = (LttvEvent *) call_data;
3239 if (strcmp(lttv_traceset_get_name_from_event(event),
3240 "lttng_statedump_end") != 0)
3241 return FALSE;
3242
3243 ts = event->state;
3244 timestamp = lttv_event_get_timestamp(event);
3245
3246 /* For all processes */
3247 /* if kernel thread, if stack[0] is unknown, set to syscall mode, wait */
3248 /* else, if stack[0] is unknown, set to user mode, running */
3249
3250 g_hash_table_foreach(ts->processes, fix_process, &timestamp);
3251
3252 return FALSE;
3253 }
3254
3255 static gboolean enum_process_state(void *hook_data, void *call_data)
3256 {
3257 LttvEvent *event;
3258 LttvTraceState *ts;
3259 LttTime timestamp;
3260 guint parent_pid;
3261 guint pid;
3262 guint tgid;
3263 gchar * command;
3264 guint cpu;
3265 LttvProcessState *parent_process;
3266 LttvProcessState *process;
3267
3268 guint type;
3269 LttvExecutionState *es;
3270 guint i, nb_cpus;
3271
3272 event = (LttvEvent *) call_data;
3273 if (strcmp(lttv_traceset_get_name_from_event(event),
3274 "lttng_statedump_process_state") != 0)
3275 return FALSE;
3276 cpu = lttv_traceset_get_cpuid_from_event(event);
3277 ts = event->state;
3278 process = ts->running_process[cpu];
3279 timestamp = lttv_event_get_timestamp(event);
3280
3281 /* PID */
3282 pid = lttv_event_get_long(event, "tid");
3283 //s->parent.target_pid = pid;
3284
3285 /* Parent PID */
3286 parent_pid = lttv_event_get_long(event, "ppid");
3287
3288 /* Command name */
3289 command = lttv_event_get_string(event, "name");
3290
3291 /* type */
3292
3293 type = lttv_event_get_long(event, "type");
3294
3295 //FIXME: type is rarely used, enum must match possible types.
3296
3297 /* Skip mode 4th param */
3298
3299 /* Skip submode 5th param */
3300
3301 /* Skip status 6th param */
3302 /* TGID */
3303 tgid = lttv_event_get_long(event, "pid");
3304
3305 if(pid == 0) {
3306 nb_cpus = lttv_trace_get_num_cpu(ts->trace);
3307 for(i=0; i<nb_cpus; i++) {
3308 process = lttv_state_find_process(ts, i, pid);
3309 g_assert(process != NULL);
3310
3311 process->ppid = parent_pid;
3312 process->tgid = tgid;
3313 process->name = g_quark_from_string(command);
3314 es = &g_array_index(process->execution_stack, LttvExecutionState, 0);
3315 process->type = LTTV_STATE_KERNEL_THREAD;
3316 }
3317
3318 } else {
3319 /* The process might exist if a process was forked while performing the
3320 * state dump. */
3321 process = lttv_state_find_process(ts, ANY_CPU, pid);
3322 if(process == NULL) {
3323 parent_process = lttv_state_find_process(ts, ANY_CPU, parent_pid);
3324 process = lttv_state_create_process(ts, parent_process, cpu,
3325 pid, tgid, g_quark_from_string(command),
3326 &timestamp);
3327
3328 /* Keep the stack bottom : a running user mode */
3329 /* Disabled because of inconsistencies in the current statedump states. */
3330 //if(type == LTTV_STATE_KERNEL_THREAD) {
3331 if(type == 1) {
3332 /* Only keep the bottom
3333 * FIXME Kernel thread : can be in syscall or interrupt or trap. */
3334 /* Will cause expected trap when in fact being syscall (even after end of
3335 * statedump event)
3336 * Will cause expected interrupt when being syscall. (only before end of
3337 * statedump event) */
3338 // This will cause a "popping last state on stack, ignoring it."
3339 process->execution_stack = g_array_set_size(process->execution_stack, 1);
3340 es = process->state = &g_array_index(process->execution_stack,
3341 LttvExecutionState, 0);
3342 process->type = LTTV_STATE_KERNEL_THREAD;
3343 es->t = LTTV_STATE_MAYBE_SYSCALL;
3344 es->s = LTTV_STATE_UNNAMED;
3345 es->n = LTTV_STATE_SUBMODE_UNKNOWN;
3346 //es->s = status;
3347 //es->n = submode;
3348 } else {
3349 /* User space process :
3350 * bottom : user mode
3351 * either currently running or scheduled out.
3352 * can be scheduled out because interrupted in (user mode or in syscall)
3353 * or because of an explicit call to the scheduler in syscall. Note that
3354 * the scheduler call comes after the irq_exit, so never in interrupt
3355 * context. */
3356 // temp workaround : set size to 1 : only have user mode bottom of stack.
3357 // will cause g_info message of expected syscall mode when in fact being
3358 // in user mode. Can also cause expected trap when in fact being user
3359 // mode in the event of a page fault reenabling interrupts in the handler.
3360 // Expected syscall and trap can also happen after the end of statedump
3361 // This will cause a "popping last state on stack, ignoring it."
3362 process->execution_stack = g_array_set_size(process->execution_stack, 1);
3363 es = process->state = &g_array_index(process->execution_stack,
3364 LttvExecutionState, 0);
3365 es->t = LTTV_STATE_MAYBE_USER_MODE;
3366 es->s = LTTV_STATE_UNNAMED;
3367 es->n = LTTV_STATE_SUBMODE_UNKNOWN;
3368 //es->s = status;
3369 //es->n = submode;
3370 }
3371 #if 0
3372 /* UNKNOWN STATE */
3373 {
3374 es = process->state = &g_array_index(process->execution_stack,
3375 LttvExecutionState, 1);
3376 es->t = LTTV_STATE_MODE_UNKNOWN;
3377 es->s = LTTV_STATE_UNNAMED;
3378 es->n = LTTV_STATE_SUBMODE_UNKNOWN;
3379 }
3380 #endif //0
3381 } else {
3382 /* The process has already been created :
3383 * Probably was forked while dumping the process state or
3384 * was simply scheduled in prior to get the state dump event.
3385 */
3386 process->ppid = parent_pid;
3387 process->tgid = tgid;
3388 process->name = g_quark_from_string(command);
3389 process->type = type;
3390 es = &g_array_index(process->execution_stack, LttvExecutionState, 0);
3391 #if 0
3392 if(es->t == LTTV_STATE_MODE_UNKNOWN) {
3393 if(type == LTTV_STATE_KERNEL_THREAD)
3394 es->t = LTTV_STATE_SYSCALL;
3395 else
3396 es->t = LTTV_STATE_USER_MODE;
3397 }
3398 #endif //0
3399 /* Don't mess around with the stack, it will eventually become
3400 * ok after the end of state dump. */
3401 }
3402 }
3403
3404 return FALSE;
3405 }
3406
3407
3408
3409 gint lttv_state_hook_add_event_hooks(void *hook_data, void *call_data)
3410 {
3411 LttvTraceset *traceset = (LttvTraceset *)(call_data);
3412
3413 lttv_state_add_event_hooks(traceset);
3414
3415 return 0;
3416 }
3417
3418 void lttv_state_add_event_hooks(LttvTraceset *traceset)
3419 {
3420 LttvHooks*event_hook;
3421
3422 //Use traceset hooks
3423 event_hook = lttv_traceset_get_hooks(traceset);
3424 g_assert(event_hook);
3425
3426 lttv_hooks_add(event_hook,syscall_entry , NULL, LTTV_PRIO_STATE);
3427 lttv_hooks_add(event_hook,syscall_exit , NULL, LTTV_PRIO_STATE);
3428 lttv_hooks_add(event_hook,irq_entry , NULL, LTTV_PRIO_STATE);
3429 lttv_hooks_add(event_hook,irq_exit , NULL, LTTV_PRIO_STATE);
3430 lttv_hooks_add(event_hook,soft_irq_raise , NULL, LTTV_PRIO_STATE);
3431 lttv_hooks_add(event_hook,soft_irq_entry , NULL, LTTV_PRIO_STATE);
3432 lttv_hooks_add(event_hook,soft_irq_exit , NULL, LTTV_PRIO_STATE);
3433 lttv_hooks_add(event_hook,schedchange , NULL, LTTV_PRIO_STATE);
3434 lttv_hooks_add(event_hook,sched_try_wakeup , NULL, LTTV_PRIO_STATE);
3435 lttv_hooks_add(event_hook,process_exit , NULL, LTTV_PRIO_STATE);
3436 lttv_hooks_add(event_hook,process_free , NULL, LTTV_PRIO_STATE);
3437 lttv_hooks_add(event_hook,process_fork , NULL, LTTV_PRIO_STATE);
3438 lttv_hooks_add(event_hook,process_exec , NULL, LTTV_PRIO_STATE);
3439 lttv_hooks_add(event_hook,enum_process_state , NULL, LTTV_PRIO_STATE);
3440 lttv_hooks_add(event_hook,statedump_end , NULL, LTTV_PRIO_STATE);
3441 lttv_hooks_add(event_hook,enum_interrupt , NULL, LTTV_PRIO_STATE);
3442
3443 }
3444
3445 gint lttv_state_hook_remove_event_hooks(void *hook_data, void *call_data)
3446 {
3447
3448 LttvTraceset *traceset = (LttvTraceset*)(call_data);
3449
3450 lttv_state_remove_event_hooks(traceset);
3451
3452 return 0;
3453 }
3454
3455 void lttv_state_remove_event_hooks(LttvTraceset *traceset)
3456 {
3457
3458 LttvHooks*event_hook;
3459
3460 event_hook = lttv_traceset_get_hooks(traceset);
3461
3462 g_assert(event_hook);
3463
3464
3465 lttv_hooks_remove(event_hook,syscall_entry );
3466 lttv_hooks_remove(event_hook,syscall_exit);
3467 lttv_hooks_remove(event_hook,irq_entry );
3468 lttv_hooks_remove(event_hook,irq_exit );
3469 lttv_hooks_remove(event_hook,soft_irq_raise);
3470 lttv_hooks_remove(event_hook,soft_irq_entry);
3471 lttv_hooks_remove(event_hook,soft_irq_exit);
3472 lttv_hooks_remove(event_hook,schedchange);
3473 lttv_hooks_remove(event_hook,sched_try_wakeup);
3474 lttv_hooks_remove(event_hook,process_exit);
3475 lttv_hooks_remove(event_hook,process_free);
3476 lttv_hooks_remove(event_hook,process_exec);
3477 lttv_hooks_remove(event_hook,enum_process_state);
3478 lttv_hooks_remove(event_hook,statedump_end);
3479 lttv_hooks_remove(event_hook,enum_interrupt);
3480 }
3481
3482
3483 static gboolean state_save_event_hook(void *hook_data, void *call_data)
3484 {
3485 guint *event_count = (guint*)hook_data;
3486
3487 /* Only save at LTTV_STATE_SAVE_INTERVAL */
3488 if(likely((*event_count)++ < LTTV_STATE_SAVE_INTERVAL))
3489 return FALSE;
3490 else
3491 *event_count = 0;
3492
3493 LttvEvent *event = (LttvEvent *)call_data;
3494
3495 LttvTraceset *traceset = lttv_trace_get_traceset(event->state->trace);
3496
3497 LttvAttribute *saved_states_tree, *saved_state_tree;
3498
3499 LttvAttributeValue value;
3500 LttTime currentTime;
3501 guint i;
3502 currentTime = lttv_event_get_timestamp(event);
3503 int nb_trace = lttv_traceset_number(traceset);
3504 for(i = 0 ; i < nb_trace ; i++) {
3505
3506 LttvTrace *trace = lttv_traceset_get(traceset, i);
3507 LttvTraceState *tstate = trace->state;
3508 saved_states_tree = lttv_attribute_find_subdir(trace->a,
3509 LTTV_STATE_SAVED_STATES);
3510
3511 saved_state_tree = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL);
3512 value = lttv_attribute_add(saved_states_tree,
3513 lttv_attribute_get_number(saved_states_tree), LTTV_GOBJECT);
3514 *(value.v_gobject) = (GObject *)saved_state_tree;
3515
3516
3517 value = lttv_attribute_add(saved_state_tree, LTTV_STATE_TIME, LTTV_TIME);
3518 *(value.v_time) = currentTime;
3519
3520 lttv_state_save(tstate, saved_state_tree);
3521 g_debug("Saving state at time %lu.%lu", currentTime.tv_sec,
3522 currentTime.tv_nsec);
3523
3524 *(tstate->max_time_state_recomputed_in_seek) = currentTime;
3525 }
3526 return FALSE;
3527 }
3528
3529 static gboolean state_save_after_trace_hook(void *hook_data, void *call_data)
3530 {
3531 #warning "Would we move max_time to traceset"
3532 LttvTrace *trace = (LttvTrace *)(call_data);
3533 LttvTraceState *tcs = trace->state;
3534 TimeInterval time_span = lttv_traceset_get_time_span_real(lttv_trace_get_traceset(trace));
3535
3536 *(tcs->max_time_state_recomputed_in_seek) = time_span.end_time;
3537
3538 return FALSE;
3539 }
3540 #ifdef BABEL_CLEANUP
3541 guint lttv_state_current_cpu(LttvTracefileState *tfs)
3542 {
3543 return tfs->cpu;
3544 }
3545
3546 #endif //BABEL_CLEANUP
3547
3548 #if 0
3549 static gboolean block_start(void *hook_data, void *call_data)
3550 {
3551 LttvTracefileState *self = (LttvTracefileState *)call_data;
3552
3553 LttvTracefileState *tfcs;
3554
3555 LttvTraceState *tcs = (LttvTraceState *)(self->parent.t_context);
3556
3557 LttEventPosition *ep;
3558
3559 guint i, nb_block, nb_event, nb_tracefile;
3560
3561 LttTracefile *tf;
3562
3563 LttvAttribute *saved_states_tree, *saved_state_tree;
3564
3565 LttvAttributeValue value;
3566
3567 ep = ltt_event_position_new();
3568
3569 nb_tracefile = tcs->parent.tracefiles->len;
3570
3571 /* Count the number of events added since the last block end in any
3572 tracefile. */
3573
3574 for(i = 0 ; i < nb_tracefile ; i++) {
3575 tfcs =
3576 LTTV_TRACEFILE_STATE(&g_array_index(tcs->parent.tracefiles,
3577 LttvTracefileContext, i));
3578 ltt_event_position(tfcs->parent.e, ep);
3579 ltt_event_position_get(ep, &nb_block, &nb_event, &tf);
3580 tcs->nb_event += nb_event - tfcs->saved_position;
3581 tfcs->saved_position = nb_event;
3582 }
3583 g_free(ep);
3584
3585 if(tcs->nb_event >= tcs->save_interval) {
3586 saved_states_tree = lttv_attribute_find_subdir(tcs->parent.t_a,
3587 LTTV_STATE_SAVED_STATES);
3588 saved_state_tree = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL);
3589 value = lttv_attribute_add(saved_states_tree,
3590 lttv_attribute_get_number(saved_states_tree), LTTV_GOBJECT);
3591 *(value.v_gobject) = (GObject *)saved_state_tree;
3592 value = lttv_attribute_add(saved_state_tree, LTTV_STATE_TIME, LTTV_TIME);
3593 *(value.v_time) = self->parent.timestamp;
3594 lttv_state_save(tcs, saved_state_tree);
3595 tcs->nb_event = 0;
3596 g_debug("Saving state at time %lu.%lu", self->parent.timestamp.tv_sec,
3597 self->parent.timestamp.tv_nsec);
3598 }
3599 *(tcs->max_time_state_recomputed_in_seek) = self->parent.timestamp;
3600 return FALSE;
3601 }
3602 #endif //0
3603
3604 #if 0
3605 static gboolean block_end(void *hook_data, void *call_data)
3606 {
3607 LttvTracefileState *self = (LttvTracefileState *)call_data;
3608
3609 LttvTraceState *tcs = (LttvTraceState *)(self->parent.t_context);
3610
3611 LttTracefile *tf;
3612
3613 LttEventPosition *ep;
3614
3615 guint nb_block, nb_event;
3616
3617 ep = ltt_event_position_new();
3618 ltt_event_position(self->parent.e, ep);
3619 ltt_event_position_get(ep, &nb_block, &nb_event, &tf);
3620 tcs->nb_event += nb_event - self->saved_position + 1;
3621 self->saved_position = 0;
3622 *(tcs->max_time_state_recomputed_in_seek) = self->parent.timestamp;
3623 g_free(ep);
3624
3625 return FALSE;
3626 }
3627 #endif //0
3628 #if 0
3629 void lttv_state_save_add_event_hooks(LttvTracesetState *self)
3630 {
3631 LttvTraceset *traceset = self->parent.ts;
3632
3633 guint i, j, nb_trace, nb_tracefile;
3634
3635 LttvTraceState *ts;
3636
3637 LttvTracefileState *tfs;
3638
3639 LttvTraceHook hook_start, hook_end;
3640
3641 nb_trace = lttv_traceset_number(traceset);
3642 for(i = 0 ; i < nb_trace ; i++) {
3643 ts = (LttvTraceState *)self->parent.traces[i];
3644
3645 lttv_trace_find_hook(ts->parent.t, "core","block_start",NULL,
3646 NULL, NULL, block_start, &hook_start);
3647 lttv_trace_find_hook(ts->parent.t, "core","block_end",NULL,
3648 NULL, NULL, block_end, &hook_end);
3649
3650 nb_tracefile = ts->parent.tracefiles->len;
3651
3652 for(j = 0 ; j < nb_tracefile ; j++) {
3653 tfs =
3654 LTTV_TRACEFILE_STATE(&g_array_index(ts->parent.tracefiles,
3655 LttvTracefileContext, j));
3656 lttv_hooks_add(lttv_hooks_by_id_find(tfs->parent.event_by_id,
3657 hook_start.id), hook_start.h, NULL, LTTV_PRIO_STATE);
3658 lttv_hooks_add(lttv_hooks_by_id_find(tfs->parent.event_by_id,
3659 hook_end.id), hook_end.h, NULL, LTTV_PRIO_STATE);
3660 }
3661 }
3662 }
3663 #endif //0
3664
3665 void lttv_state_save_add_event_hooks(LttvTraceset *traceset)
3666 {
3667
3668 if(!traceset->has_precomputed_states) {
3669 guint *event_count = g_new(guint, 1);
3670
3671 *event_count = 0;
3672 lttv_hooks_add(traceset->event_hooks,
3673 state_save_event_hook,
3674 event_count,
3675 LTTV_PRIO_STATE);
3676
3677 lttv_process_traceset_begin(traceset,
3678 NULL, NULL, NULL);
3679 }
3680
3681 }
3682
3683 gint lttv_state_save_hook_add_event_hooks(void *hook_data, void *call_data)
3684 {
3685 LttvTraceset *ts = (LttvTraceset*)(call_data);
3686
3687 lttv_state_save_add_event_hooks(ts);
3688
3689 return 0;
3690 }
3691
3692
3693 void lttv_state_save_remove_event_hooks(LttvTraceset *traceset)
3694 {
3695
3696 LttvHooks *after_trace = lttv_hooks_new();
3697 guint *event_count = NULL;
3698
3699 lttv_hooks_add(after_trace,
3700 state_save_after_trace_hook,
3701 NULL,
3702 LTTV_PRIO_STATE);
3703
3704
3705 lttv_process_traceset_end(traceset,
3706 NULL, after_trace, NULL);
3707
3708 lttv_hooks_destroy(after_trace);
3709
3710 //nb_trace = lttv_traceset_number(traceset);
3711
3712 event_count = lttv_hooks_remove(traceset->event_hooks,
3713 state_save_event_hook);
3714
3715 if(event_count) g_free(event_count);
3716
3717 }
3718
3719 gint lttv_state_save_hook_remove_event_hooks(void *hook_data, void *call_data)
3720 {
3721 LttvTraceset *ts = (LttvTraceset*)(call_data);
3722
3723 lttv_state_save_remove_event_hooks(ts);
3724
3725 return 0;
3726 }
3727
3728
3729 void lttv_state_traceset_seek_time(LttvTraceset *traceset, LttTime t)
3730 {
3731 lttv_state_traceset_seek_time_closest(traceset,
3732 t);
3733 lttv_process_traceset_middle(traceset, t, G_MAXUINT,
3734 NULL);
3735 }
3736
3737 void lttv_state_traceset_seek_position(LttvTraceset *traceset, LttvTracesetPosition *position)
3738 {
3739 LttTime t = lttv_traceset_position_get_time(position);
3740
3741 lttv_state_traceset_seek_time_closest(traceset,
3742 t);
3743 lttv_process_traceset_middle(traceset,
3744 ltt_time_infinite,
3745 G_MAXUINT,
3746 position);
3747 }
3748
3749 void lttv_state_traceset_seek_time_closest(LttvTraceset *traceset, LttTime t)
3750 {
3751 guint i, nb_trace;
3752
3753 int min_pos, mid_pos, max_pos;
3754
3755 guint resto_start = 0;
3756 guint resto_at = 0;
3757
3758 LttvAttributeValue value;
3759
3760 LttvAttributeType type;
3761
3762 LttvAttributeName name;
3763
3764 gboolean is_named;
3765
3766 LttvAttribute *saved_states_tree, *saved_state_tree, *closest_tree = NULL;
3767
3768 LttTime closest_tree_time, restored_time;
3769 guint first_restored_time = 1;
3770
3771 //g_tree_destroy(self->parent.pqueue);
3772 //self->parent.pqueue = g_tree_new(compare_tracefile);
3773
3774 g_debug("Entering seek_time_closest for time %lu.%lu", t.tv_sec, t.tv_nsec);
3775
3776 nb_trace = lttv_traceset_number(traceset);
3777 for(i = 0 ; i < nb_trace ; i++) {
3778
3779 LttvTrace *trace = lttv_traceset_get(traceset, i);
3780 LttvTraceState *tstate = trace->state;
3781
3782 if(ltt_time_compare(t, *(tstate->max_time_state_recomputed_in_seek)) < 0) {
3783 saved_states_tree = lttv_attribute_find_subdir(trace->a,
3784 LTTV_STATE_SAVED_STATES);
3785 min_pos = -1;
3786
3787 if(saved_states_tree) {
3788 max_pos = lttv_attribute_get_number(saved_states_tree) - 1;
3789 mid_pos = max_pos / 2;
3790 while(min_pos < max_pos) {
3791 type = lttv_attribute_get(saved_states_tree, mid_pos,
3792 &name, &value, &is_named);
3793 g_assert(type == LTTV_GOBJECT);
3794 saved_state_tree = *((LttvAttribute **)(value.v_gobject));
3795 type = lttv_attribute_get_by_name(saved_state_tree,
3796 LTTV_STATE_TIME, &value);
3797 g_assert(type == LTTV_TIME);
3798 if(ltt_time_compare(*(value.v_time), t) < 0) {
3799 min_pos = mid_pos;
3800 closest_tree = saved_state_tree;
3801 closest_tree_time = *(value.v_time);
3802 }
3803 else max_pos = mid_pos - 1;
3804
3805 mid_pos = (min_pos + max_pos + 1) / 2;
3806 }
3807 }
3808
3809 /* restore the closest earlier saved state */
3810 if(min_pos != -1) {
3811 if(first_restored_time || (ltt_time_compare(restored_time, closest_tree_time) == 0)) {
3812 first_restored_time = 0;
3813 lttv_state_restore(tstate, closest_tree);
3814
3815 restored_time = closest_tree_time;
3816 } else {
3817 g_debug("State: restored time mismatch between traces");
3818 resto_start = 1;
3819 break;
3820 }
3821
3822 }
3823
3824 /* There is no saved state, yet we want to have it. Restart at T0 */
3825 else {
3826 resto_start = 1;
3827 break;
3828 }
3829 }
3830 /* We want to seek quickly without restoring/updating the state */
3831 else {
3832 resto_at = 1;
3833 break;
3834 }
3835 }
3836
3837 if(resto_start || resto_at) {
3838 // Restore init state and seek so
3839 for(i = 0 ; i < nb_trace ; i++) {
3840
3841 LttvTrace *trace = lttv_traceset_get(traceset, i);
3842 LttvTraceState *tstate = trace->state;
3843
3844 restore_init_state(tstate);
3845 }
3846
3847 // If t > max saved state
3848 if(resto_at) {
3849 lttv_process_traceset_seek_time(traceset, t);
3850 } else if (resto_start) {
3851 // If no saved state
3852 lttv_process_traceset_seek_time(traceset, ltt_time_zero);
3853 } else {
3854 g_assert(FALSE);
3855 }
3856 g_info("NOT Calling restore");
3857
3858 } else {
3859 // Seek at checkpoint
3860 lttv_process_traceset_seek_time(traceset, restored_time);
3861
3862
3863 }
3864
3865
3866 }
3867
3868 #ifdef BABEL_CLEANUP
3869 static void traceset_state_instance_init (GTypeInstance *instance, gpointer g_class)
3870 {
3871 }
3872
3873
3874 static void traceset_state_finalize (LttvTracesetState *self)
3875 {
3876 G_OBJECT_CLASS(g_type_class_peek(LTTV_TRACESET_CONTEXT_TYPE))->
3877 finalize(G_OBJECT(self));
3878 }
3879
3880
3881 static void traceset_state_class_init (LttvTracesetContextClass *klass)
3882 {
3883 GObjectClass *gobject_class = G_OBJECT_CLASS(klass);
3884
3885 gobject_class->finalize = (void (*)(GObject *self)) traceset_state_finalize;
3886 klass->init = (void (*)(LttvTracesetContext *self, LttvTraceset *ts))init;
3887 klass->fini = (void (*)(LttvTracesetContext *self))fini;
3888 klass->new_traceset_context = new_traceset_context;
3889 klass->new_trace_context = new_trace_context;
3890 klass->new_tracefile_context = new_tracefile_context;
3891 }
3892
3893
3894 GType lttv_traceset_state_get_type(void)
3895 {
3896 static GType type = 0;
3897 if (type == 0) {
3898 static const GTypeInfo info = {
3899 sizeof (LttvTracesetStateClass),
3900 NULL, /* base_init */
3901 NULL, /* base_finalize */
3902 (GClassInitFunc) traceset_state_class_init, /* class_init */
3903 NULL, /* class_finalize */
3904 NULL, /* class_data */
3905 sizeof (LttvTracesetState),
3906 0, /* n_preallocs */
3907 (GInstanceInitFunc) traceset_state_instance_init, /* instance_init */
3908 NULL /* value handling */
3909 };
3910
3911 type = g_type_register_static (LTTV_TRACESET_CONTEXT_TYPE, "LttvTracesetStateType",
3912 &info, 0);
3913 }
3914 return type;
3915 }
3916
3917 #endif
3918 #if BABEL_CLEANUP
3919 static void trace_state_instance_init (GTypeInstance *instance, gpointer g_class)
3920 {
3921 }
3922
3923
3924 static void trace_state_finalize (LttvTraceState *self)
3925 {
3926 G_OBJECT_CLASS(g_type_class_peek(LTTV_TRACE_CONTEXT_TYPE))->
3927 finalize(G_OBJECT(self));
3928 }
3929
3930
3931 static void trace_state_class_init (LttvTraceStateClass *klass)
3932 {
3933 GObjectClass *gobject_class = G_OBJECT_CLASS(klass);
3934
3935 gobject_class->finalize = (void (*)(GObject *self)) trace_state_finalize;
3936 klass->state_save = state_save;
3937 klass->state_restore = state_restore;
3938 klass->state_saved_free = state_saved_free;
3939 }
3940
3941
3942 GType lttv_trace_state_get_type(void)
3943 {
3944 static GType type = 0;
3945 if (type == 0) {
3946 static const GTypeInfo info = {
3947 sizeof (LttvTraceStateClass),
3948 NULL, /* base_init */
3949 NULL, /* base_finalize */
3950 (GClassInitFunc) trace_state_class_init, /* class_init */
3951 NULL, /* class_finalize */
3952 NULL, /* class_data */
3953 sizeof (LttvTraceState),
3954 0, /* n_preallocs */
3955 (GInstanceInitFunc) trace_state_instance_init, /* instance_init */
3956 NULL /* value handling */
3957 };
3958
3959 type = g_type_register_static (LTTV_TRACE_CONTEXT_TYPE,
3960 "LttvTraceStateType", &info, 0);
3961 }
3962 return type;
3963 }
3964
3965
3966 static void tracefile_state_instance_init (GTypeInstance *instance,
3967 gpointer g_class)
3968 {
3969 }
3970
3971
3972 static void tracefile_state_finalize (LttvTracefileState *self)
3973 {
3974 G_OBJECT_CLASS(g_type_class_peek(LTTV_TRACEFILE_CONTEXT_TYPE))->
3975 finalize(G_OBJECT(self));
3976 }
3977
3978
3979 static void tracefile_state_class_init (LttvTracefileStateClass *klass)
3980 {
3981 GObjectClass *gobject_class = G_OBJECT_CLASS(klass);
3982
3983 gobject_class->finalize = (void (*)(GObject *self)) tracefile_state_finalize;
3984 }
3985
3986
3987 GType lttv_tracefile_state_get_type(void)
3988 {
3989 static GType type = 0;
3990 if (type == 0) {
3991 static const GTypeInfo info = {
3992 sizeof (LttvTracefileStateClass),
3993 NULL, /* base_init */
3994 NULL, /* base_finalize */
3995 (GClassInitFunc) tracefile_state_class_init, /* class_init */
3996 NULL, /* class_finalize */
3997 NULL, /* class_data */
3998 sizeof (LttvTracefileState),
3999 0, /* n_preallocs */
4000 (GInstanceInitFunc) tracefile_state_instance_init, /* instance_init */
4001 NULL /* value handling */
4002 };
4003
4004 type = g_type_register_static (LTTV_TRACEFILE_CONTEXT_TYPE,
4005 "LttvTracefileStateType", &info, 0);
4006 }
4007 return type;
4008 }
4009
4010 #endif
4011 static void module_init(void)
4012 {
4013 LTTV_STATE_UNNAMED = g_quark_from_string("");
4014 LTTV_STATE_MODE_UNKNOWN = g_quark_from_string("MODE_UNKNOWN");
4015 LTTV_STATE_USER_MODE = g_quark_from_string("USER_MODE");
4016 LTTV_STATE_MAYBE_USER_MODE = g_quark_from_string("MAYBE_USER_MODE");
4017 LTTV_STATE_SYSCALL = g_quark_from_string("SYSCALL");
4018 LTTV_STATE_MAYBE_SYSCALL = g_quark_from_string("MAYBE_SYSCALL");
4019 LTTV_STATE_TRAP = g_quark_from_string("TRAP");
4020 LTTV_STATE_MAYBE_TRAP = g_quark_from_string("MAYBE_TRAP");
4021 LTTV_STATE_IRQ = g_quark_from_string("IRQ");
4022 LTTV_STATE_SOFT_IRQ = g_quark_from_string("SOFTIRQ");
4023 LTTV_STATE_SUBMODE_UNKNOWN = g_quark_from_string("UNKNOWN");
4024 LTTV_STATE_SUBMODE_NONE = g_quark_from_string("NONE");
4025 LTTV_STATE_WAIT_FORK = g_quark_from_string("WAIT_FORK");
4026 LTTV_STATE_WAIT_CPU = g_quark_from_string("WAIT_CPU");
4027 LTTV_STATE_EXIT = g_quark_from_string("EXIT");
4028 LTTV_STATE_ZOMBIE = g_quark_from_string("ZOMBIE");
4029 LTTV_STATE_WAIT = g_quark_from_string("WAIT");
4030 LTTV_STATE_RUN = g_quark_from_string("RUN");
4031 LTTV_STATE_DEAD = g_quark_from_string("DEAD");
4032 LTTV_STATE_USER_THREAD = g_quark_from_string("USER_THREAD");
4033 LTTV_STATE_KERNEL_THREAD = g_quark_from_string("KERNEL_THREAD");
4034 LTTV_STATE_TRACEFILES = g_quark_from_string("tracefiles");
4035 LTTV_STATE_PROCESSES = g_quark_from_string("processes");
4036 LTTV_STATE_PROCESS = g_quark_from_string("process");
4037 LTTV_STATE_RUNNING_PROCESS = g_quark_from_string("running_process");
4038 LTTV_STATE_POSITION = g_quark_from_string("position");
4039 LTTV_STATE_SAVED_STATES = g_quark_from_string("saved states");
4040 LTTV_STATE_SAVED_STATES_TIME = g_quark_from_string("saved states time");
4041 LTTV_STATE_TIME = g_quark_from_string("time");
4042 LTTV_STATE_HOOKS = g_quark_from_string("saved state hooks");
4043 LTTV_STATE_NAME_TABLES = g_quark_from_string("name tables");
4044 LTTV_STATE_TRACE_STATE_USE_COUNT =
4045 g_quark_from_string("trace_state_use_count");
4046 LTTV_STATE_RESOURCE_CPUS = g_quark_from_string("cpu resource states");
4047 LTTV_STATE_RESOURCE_CPUS = g_quark_from_string("cpu count");
4048 LTTV_STATE_RESOURCE_IRQS = g_quark_from_string("irq resource states");
4049 LTTV_STATE_RESOURCE_SOFT_IRQS = g_quark_from_string("soft irq resource states");
4050 LTTV_STATE_RESOURCE_TRAPS = g_quark_from_string("trap resource states");
4051 LTTV_STATE_RESOURCE_BLKDEVS = g_quark_from_string("blkdevs resource states");
4052
4053 LTT_CHANNEL_FD_STATE = g_quark_from_string("fd_state");
4054 LTT_CHANNEL_GLOBAL_STATE = g_quark_from_string("global_state");
4055 LTT_CHANNEL_IRQ_STATE = g_quark_from_string("irq_state");
4056 LTT_CHANNEL_MODULE_STATE = g_quark_from_string("module_state");
4057 LTT_CHANNEL_NETIF_STATE = g_quark_from_string("netif_state");
4058 LTT_CHANNEL_SOFTIRQ_STATE = g_quark_from_string("softirq_state");
4059 LTT_CHANNEL_SWAP_STATE = g_quark_from_string("swap_state");
4060 LTT_CHANNEL_SYSCALL_STATE = g_quark_from_string("syscall_state");
4061 LTT_CHANNEL_TASK_STATE = g_quark_from_string("task_state");
4062 LTT_CHANNEL_VM_STATE = g_quark_from_string("vm_state");
4063 LTT_CHANNEL_KPROBE_STATE = g_quark_from_string("kprobe_state");
4064 LTT_CHANNEL_FS = g_quark_from_string("fs");
4065 LTT_CHANNEL_KERNEL = g_quark_from_string("kernel");
4066 LTT_CHANNEL_MM = g_quark_from_string("mm");
4067 LTT_CHANNEL_USERSPACE = g_quark_from_string("userspace");
4068 LTT_CHANNEL_BLOCK = g_quark_from_string("block");
4069
4070 LTT_EVENT_SYSCALL_ENTRY = g_quark_from_string("syscall_entry");
4071 LTT_EVENT_SYSCALL_EXIT = g_quark_from_string("syscall_exit");
4072 //LTT_EVENT_TRAP_ENTRY = g_quark_from_string("trap_entry");
4073 //LTT_EVENT_TRAP_EXIT = g_quark_from_string("trap_exit");
4074 LTT_EVENT_PAGE_FAULT_ENTRY = g_quark_from_string("page_fault_entry");
4075 LTT_EVENT_PAGE_FAULT_EXIT = g_quark_from_string("page_fault_exit");
4076 LTT_EVENT_PAGE_FAULT_NOSEM_ENTRY = g_quark_from_string("page_fault_nosem_entry");
4077 LTT_EVENT_PAGE_FAULT_NOSEM_EXIT = g_quark_from_string("page_fault_nosem_exit");
4078 LTT_EVENT_IRQ_ENTRY = g_quark_from_string("irq_entry");
4079 LTT_EVENT_IRQ_EXIT = g_quark_from_string("irq_exit");
4080 LTT_EVENT_SOFT_IRQ_RAISE = g_quark_from_string("softirq_raise");
4081 LTT_EVENT_SOFT_IRQ_ENTRY = g_quark_from_string("softirq_entry");
4082 LTT_EVENT_SOFT_IRQ_EXIT = g_quark_from_string("softirq_exit");
4083 LTT_EVENT_SCHED_SCHEDULE = g_quark_from_string("sched_schedule");
4084 LTT_EVENT_SCHED_TRY_WAKEUP = g_quark_from_string("sched_try_wakeup");
4085 LTT_EVENT_PROCESS_FORK = g_quark_from_string("process_fork");
4086 LTT_EVENT_KTHREAD_CREATE = g_quark_from_string("kthread_create");
4087 LTT_EVENT_PROCESS_EXIT = g_quark_from_string("process_exit");
4088 LTT_EVENT_PROCESS_FREE = g_quark_from_string("process_free");
4089 LTT_EVENT_EXEC = g_quark_from_string("exec");
4090 LTT_EVENT_PROCESS_STATE = g_quark_from_string("process_state");
4091 LTT_EVENT_STATEDUMP_END = g_quark_from_string("statedump_end");
4092 LTT_EVENT_FUNCTION_ENTRY = g_quark_from_string("function_entry");
4093 LTT_EVENT_FUNCTION_EXIT = g_quark_from_string("function_exit");
4094 LTT_EVENT_REQUEST_ISSUE = g_quark_from_string("_blk_request_issue");
4095 LTT_EVENT_REQUEST_COMPLETE = g_quark_from_string("_blk_request_complete");
4096 LTT_EVENT_LIST_INTERRUPT = g_quark_from_string("interrupt");
4097 LTT_EVENT_SYS_CALL_TABLE = g_quark_from_string("sys_call_table");
4098 LTT_EVENT_SOFTIRQ_VEC = g_quark_from_string("softirq_vec");
4099 LTT_EVENT_KPROBE_TABLE = g_quark_from_string("kprobe_table");
4100 LTT_EVENT_KPROBE = g_quark_from_string("kprobe");
4101 LTT_EVENT_OPEN = g_quark_from_string("open");
4102 LTT_EVENT_READ = g_quark_from_string("read");
4103 LTT_EVENT_POLL_EVENT = g_quark_from_string("poll_event");
4104
4105 LTT_FIELD_SYSCALL_ID = g_quark_from_string("syscall_id");
4106 LTT_FIELD_TRAP_ID = g_quark_from_string("trap_id");
4107 LTT_FIELD_IRQ_ID = g_quark_from_string("irq_id");
4108 LTT_FIELD_SOFT_IRQ_ID = g_quark_from_string("softirq_id");
4109 LTT_FIELD_PREV_PID = g_quark_from_string("prev_pid");
4110 LTT_FIELD_NEXT_PID = g_quark_from_string("next_pid");
4111 LTT_FIELD_PREV_STATE = g_quark_from_string("prev_state");
4112 LTT_FIELD_PARENT_PID = g_quark_from_string("parent_pid");
4113 LTT_FIELD_CHILD_PID = g_quark_from_string("child_pid");
4114 LTT_FIELD_PID = g_quark_from_string("pid");
4115 LTT_FIELD_TGID = g_quark_from_string("tgid");
4116 LTT_FIELD_CHILD_TGID = g_quark_from_string("child_tgid");
4117 LTT_FIELD_FILENAME = g_quark_from_string("filename");
4118 LTT_FIELD_NAME = g_quark_from_string("name");
4119 LTT_FIELD_TYPE = g_quark_from_string("type");
4120 LTT_FIELD_MODE = g_quark_from_string("mode");
4121 LTT_FIELD_SUBMODE = g_quark_from_string("submode");
4122 LTT_FIELD_STATUS = g_quark_from_string("status");
4123 LTT_FIELD_THIS_FN = g_quark_from_string("this_fn");
4124 LTT_FIELD_CALL_SITE = g_quark_from_string("call_site");
4125 LTT_FIELD_MAJOR = g_quark_from_string("major");
4126 LTT_FIELD_MINOR = g_quark_from_string("minor");
4127 LTT_FIELD_OPERATION = g_quark_from_string("direction");
4128 LTT_FIELD_ACTION = g_quark_from_string("action");
4129 LTT_FIELD_ID = g_quark_from_string("id");
4130 LTT_FIELD_ADDRESS = g_quark_from_string("address");
4131 LTT_FIELD_SYMBOL = g_quark_from_string("symbol");
4132 LTT_FIELD_IP = g_quark_from_string("ip");
4133 LTT_FIELD_FD = g_quark_from_string("fd");
4134 LTT_FIELD_STATE = g_quark_from_string("state");
4135 LTT_FIELD_CPU_ID = g_quark_from_string("cpu_id");
4136
4137 LTTV_CPU_UNKNOWN = g_quark_from_string("unknown");
4138 LTTV_CPU_IDLE = g_quark_from_string("idle");
4139 LTTV_CPU_BUSY = g_quark_from_string("busy");
4140 LTTV_CPU_IRQ = g_quark_from_string("irq");
4141 LTTV_CPU_SOFT_IRQ = g_quark_from_string("softirq");
4142 LTTV_CPU_TRAP = g_quark_from_string("trap");
4143
4144 LTTV_IRQ_UNKNOWN = g_quark_from_string("unknown");
4145 LTTV_IRQ_IDLE = g_quark_from_string("idle");
4146 LTTV_IRQ_BUSY = g_quark_from_string("busy");
4147
4148 LTTV_BDEV_UNKNOWN = g_quark_from_string("unknown");
4149 LTTV_BDEV_IDLE = g_quark_from_string("idle");
4150 LTTV_BDEV_BUSY_READING = g_quark_from_string("busy_reading");
4151 LTTV_BDEV_BUSY_WRITING = g_quark_from_string("busy_writing");
4152 }
4153
4154 static void module_destroy()
4155 {
4156 }
4157
4158
4159 LTTV_MODULE("state", "State computation", \
4160 "Update the system state, possibly saving it at intervals", \
4161 module_init, module_destroy)
4162
4163
4164
LTTng 2.x Viewer (LTTV)
This page took 0.170486 seconds and 4 git commands to generate.