1 /* This file is part of the Linux Trace Toolkit viewer
2 * Copyright (C) 2003-2004 Michel Dagenais
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;
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.
13 * You should have received a copy of the GNU General Public License
14 * along with this program; if not, write to the Free Software
15 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
25 #include <lttv/lttv.h>
26 #include <lttv/module.h>
27 #include <lttv/state.h>
28 #include <ltt/trace.h>
29 #include <ltt/event.h>
31 #include <ltt/marker-desc.h>
37 * usertrace is there only to be able to update the current CPU of the
38 * usertraces when there is a schedchange. it is a way to link the ProcessState
39 * to the associated usertrace. Link only created upon thread creation.
41 * The cpu id is necessary : it gives us back the current ProcessState when we
42 * are considering data from the usertrace.
45 #define PREALLOCATED_EXECUTION_STACK 10
47 /* Facilities Quarks */
51 LTT_FACILITY_KERNEL_ARCH
,
54 LTT_FACILITY_USER_GENERIC
,
60 LTT_EVENT_SYSCALL_ENTRY
,
61 LTT_EVENT_SYSCALL_EXIT
,
66 LTT_EVENT_SOFT_IRQ_ENTRY
,
67 LTT_EVENT_SOFT_IRQ_EXIT
,
68 LTT_EVENT_SCHED_SCHEDULE
,
69 LTT_EVENT_PROCESS_FORK
,
70 LTT_EVENT_KTHREAD_CREATE
,
71 LTT_EVENT_PROCESS_EXIT
,
72 LTT_EVENT_PROCESS_FREE
,
74 LTT_EVENT_PROCESS_STATE
,
75 LTT_EVENT_STATEDUMP_END
,
76 LTT_EVENT_FUNCTION_ENTRY
,
77 LTT_EVENT_FUNCTION_EXIT
,
78 LTT_EVENT_THREAD_BRAND
,
79 LTT_EVENT_REQUEST_ISSUE
,
80 LTT_EVENT_REQUEST_COMPLETE
,
81 LTT_EVENT_LIST_INTERRUPT
;
89 LTT_FIELD_SOFT_IRQ_ID
,
112 LTTV_STATE_MODE_UNKNOWN
,
113 LTTV_STATE_USER_MODE
,
120 LTTV_STATE_SUBMODE_UNKNOWN
,
121 LTTV_STATE_SUBMODE_NONE
;
125 LTTV_STATE_WAIT_FORK
,
134 LTTV_STATE_UNBRANDED
;
137 LTTV_STATE_USER_THREAD
,
138 LTTV_STATE_KERNEL_THREAD
;
155 LTTV_BDEV_BUSY_READING
,
156 LTTV_BDEV_BUSY_WRITING
;
159 LTTV_STATE_TRACEFILES
,
160 LTTV_STATE_PROCESSES
,
162 LTTV_STATE_RUNNING_PROCESS
,
164 LTTV_STATE_SAVED_STATES
,
165 LTTV_STATE_SAVED_STATES_TIME
,
168 LTTV_STATE_NAME_TABLES
,
169 LTTV_STATE_TRACE_STATE_USE_COUNT
,
170 LTTV_STATE_RESOURCE_CPUS
,
171 LTTV_STATE_RESOURCE_IRQS
,
172 LTTV_STATE_RESOURCE_BLKDEVS
;
174 static void create_max_time(LttvTraceState
*tcs
);
176 static void get_max_time(LttvTraceState
*tcs
);
178 static void free_max_time(LttvTraceState
*tcs
);
180 static void create_name_tables(LttvTraceState
*tcs
);
182 static void get_name_tables(LttvTraceState
*tcs
);
184 static void free_name_tables(LttvTraceState
*tcs
);
186 static void free_saved_state(LttvTraceState
*tcs
);
188 static void lttv_state_free_process_table(GHashTable
*processes
);
190 static void lttv_trace_states_read_raw(LttvTraceState
*tcs
, FILE *fp
,
191 GPtrArray
*quarktable
);
193 /* Resource function prototypes */
194 static LttvBdevState
*get_hashed_bdevstate(LttvTraceState
*ts
, guint16 devcode
);
195 static LttvBdevState
*bdevstate_new(void);
196 static void bdevstate_free(LttvBdevState
*);
197 static void bdevstate_free_cb(gpointer key
, gpointer value
, gpointer user_data
);
198 static LttvBdevState
*bdevstate_copy(LttvBdevState
*bds
);
201 void lttv_state_save(LttvTraceState
*self
, LttvAttribute
*container
)
203 LTTV_TRACE_STATE_GET_CLASS(self
)->state_save(self
, container
);
207 void lttv_state_restore(LttvTraceState
*self
, LttvAttribute
*container
)
209 LTTV_TRACE_STATE_GET_CLASS(self
)->state_restore(self
, container
);
213 void lttv_state_state_saved_free(LttvTraceState
*self
,
214 LttvAttribute
*container
)
216 LTTV_TRACE_STATE_GET_CLASS(self
)->state_saved_free(self
, container
);
220 guint
process_hash(gconstpointer key
)
222 guint pid
= ((const LttvProcessState
*)key
)->pid
;
223 return (pid
>>8 ^ pid
>>4 ^ pid
>>2 ^ pid
) ;
227 /* If the hash table hash function is well distributed,
228 * the process_equal should compare different pid */
229 gboolean
process_equal(gconstpointer a
, gconstpointer b
)
231 const LttvProcessState
*process_a
, *process_b
;
234 process_a
= (const LttvProcessState
*)a
;
235 process_b
= (const LttvProcessState
*)b
;
237 if(likely(process_a
->pid
!= process_b
->pid
)) ret
= FALSE
;
238 else if(likely(process_a
->pid
== 0 &&
239 process_a
->cpu
!= process_b
->cpu
)) ret
= FALSE
;
244 static void delete_usertrace(gpointer key
, gpointer value
, gpointer user_data
)
246 g_tree_destroy((GTree
*)value
);
249 static void lttv_state_free_usertraces(GHashTable
*usertraces
)
251 g_hash_table_foreach(usertraces
, delete_usertrace
, NULL
);
252 g_hash_table_destroy(usertraces
);
258 restore_init_state(LttvTraceState
*self
)
260 guint i
, nb_cpus
, nb_irqs
;
262 //LttvTracefileState *tfcs;
264 LttTime start_time
, end_time
;
266 /* Free the process tables */
267 if(self
->processes
!= NULL
) lttv_state_free_process_table(self
->processes
);
268 if(self
->usertraces
!= NULL
) lttv_state_free_usertraces(self
->usertraces
);
269 self
->processes
= g_hash_table_new(process_hash
, process_equal
);
270 self
->usertraces
= g_hash_table_new(g_direct_hash
, g_direct_equal
);
273 /* Seek time to beginning */
274 // Mathieu : fix : don't seek traceset here : causes inconsistency in seek
275 // closest. It's the tracecontext job to seek the trace to the beginning
276 // anyway : the init state might be used at the middle of the trace as well...
277 //g_tree_destroy(self->parent.ts_context->pqueue);
278 //self->parent.ts_context->pqueue = g_tree_new(compare_tracefile);
280 ltt_trace_time_span_get(self
->parent
.t
, &start_time
, &end_time
);
282 //lttv_process_trace_seek_time(&self->parent, ltt_time_zero);
284 nb_cpus
= ltt_trace_get_num_cpu(self
->parent
.t
);
285 nb_irqs
= self
->nb_irqs
;
287 /* Put the per cpu running_process to beginning state : process 0. */
288 for(i
=0; i
< nb_cpus
; i
++) {
289 LttvExecutionState
*es
;
290 self
->running_process
[i
] = lttv_state_create_process(self
, NULL
, i
, 0, 0,
291 LTTV_STATE_UNNAMED
, &start_time
);
292 /* We are not sure is it's a kernel thread or normal thread, put the
293 * bottom stack state to unknown */
294 self
->running_process
[i
]->execution_stack
=
295 g_array_set_size(self
->running_process
[i
]->execution_stack
, 1);
296 es
= self
->running_process
[i
]->state
=
297 &g_array_index(self
->running_process
[i
]->execution_stack
,
298 LttvExecutionState
, 0);
299 es
->t
= LTTV_STATE_MODE_UNKNOWN
;
300 es
->s
= LTTV_STATE_UNNAMED
;
302 //self->running_process[i]->state->s = LTTV_STATE_RUN;
303 self
->running_process
[i
]->cpu
= i
;
305 /* reset cpu states */
306 if(self
->cpu_states
[i
].mode_stack
->len
> 0)
307 g_array_remove_range(self
->cpu_states
[i
].mode_stack
, 0, self
->cpu_states
[i
].mode_stack
->len
);
310 /* reset irq states */
311 for(i
=0; i
<nb_irqs
; i
++) {
312 if(self
->irq_states
[i
].mode_stack
->len
> 0)
313 g_array_remove_range(self
->irq_states
[i
].mode_stack
, 0, self
->irq_states
[i
].mode_stack
->len
);
316 /* reset bdev states */
317 g_hash_table_foreach(self
->bdev_states
, bdevstate_free_cb
, NULL
);
318 g_hash_table_steal_all(self
->bdev_states
);
321 nb_tracefile
= self
->parent
.tracefiles
->len
;
323 for(i
= 0 ; i
< nb_tracefile
; i
++) {
325 LTTV_TRACEFILE_STATE(g_array_index(self
->parent
.tracefiles
,
326 LttvTracefileContext
*, i
));
327 ltt_trace_time_span_get(self
->parent
.t
, &tfcs
->parent
.timestamp
, NULL
);
328 // tfcs->saved_position = 0;
329 tfcs
->process
= lttv_state_create_process(tfcs
, NULL
,0);
330 tfcs
->process
->state
->s
= LTTV_STATE_RUN
;
331 tfcs
->process
->last_cpu
= tfcs
->cpu_name
;
332 tfcs
->process
->last_cpu_index
= ltt_tracefile_num(((LttvTracefileContext
*)tfcs
)->tf
);
337 //static LttTime time_zero = {0,0};
339 static gint
compare_usertraces(gconstpointer a
, gconstpointer b
,
342 const LttTime
*t1
= (const LttTime
*)a
;
343 const LttTime
*t2
= (const LttTime
*)b
;
345 return ltt_time_compare(*t1
, *t2
);
348 static void free_usertrace_key(gpointer data
)
353 #define MAX_STRING_LEN 4096
356 state_load_saved_states(LttvTraceState
*tcs
)
359 GPtrArray
*quarktable
;
360 const char *trace_path
;
364 tcs
->has_precomputed_states
= FALSE
;
368 gchar buf
[MAX_STRING_LEN
];
371 trace_path
= g_quark_to_string(ltt_trace_name(tcs
->parent
.t
));
372 strncpy(path
, trace_path
, PATH_MAX
-1);
373 count
= strnlen(trace_path
, PATH_MAX
-1);
374 // quarktable : open, test
375 strncat(path
, "/precomputed/quarktable", PATH_MAX
-count
-1);
376 fp
= fopen(path
, "r");
378 quarktable
= g_ptr_array_sized_new(4096);
380 /* Index 0 is null */
382 if(hdr
== EOF
) return;
383 g_assert(hdr
== HDR_QUARKS
);
387 if(hdr
== EOF
) break;
388 g_assert(hdr
== HDR_QUARK
);
389 g_ptr_array_set_size(quarktable
, q
+1);
392 fread(&buf
[i
], sizeof(gchar
), 1, fp
);
393 if(buf
[i
] == '\0' || feof(fp
)) break;
396 len
= strnlen(buf
, MAX_STRING_LEN
-1);
397 g_ptr_array_index (quarktable
, q
) = g_new(gchar
, len
+1);
398 strncpy(g_ptr_array_index (quarktable
, q
), buf
, len
+1);
404 // saved_states : open, test
405 strncpy(path
, trace_path
, PATH_MAX
-1);
406 count
= strnlen(trace_path
, PATH_MAX
-1);
407 strncat(path
, "/precomputed/states", PATH_MAX
-count
-1);
408 fp
= fopen(path
, "r");
412 if(hdr
!= HDR_TRACE
) goto end
;
414 lttv_trace_states_read_raw(tcs
, fp
, quarktable
);
416 tcs
->has_precomputed_states
= TRUE
;
421 /* Free the quarktable */
422 for(i
=0; i
<quarktable
->len
; i
++) {
423 string
= g_ptr_array_index (quarktable
, i
);
426 g_ptr_array_free(quarktable
, TRUE
);
431 init(LttvTracesetState
*self
, LttvTraceset
*ts
)
433 guint i
, j
, nb_trace
, nb_tracefile
, nb_cpu
;
436 LttvTraceContext
*tc
;
440 LttvTracefileState
*tfcs
;
442 LttvAttributeValue v
;
444 LTTV_TRACESET_CONTEXT_CLASS(g_type_class_peek(LTTV_TRACESET_CONTEXT_TYPE
))->
445 init((LttvTracesetContext
*)self
, ts
);
447 nb_trace
= lttv_traceset_number(ts
);
448 for(i
= 0 ; i
< nb_trace
; i
++) {
449 tc
= self
->parent
.traces
[i
];
450 tcs
= LTTV_TRACE_STATE(tc
);
451 tcs
->save_interval
= LTTV_STATE_SAVE_INTERVAL
;
452 lttv_attribute_find(tcs
->parent
.t_a
, LTTV_STATE_TRACE_STATE_USE_COUNT
,
456 if(*(v
.v_uint
) == 1) {
457 create_name_tables(tcs
);
458 create_max_time(tcs
);
460 get_name_tables(tcs
);
463 nb_tracefile
= tc
->tracefiles
->len
;
464 nb_cpu
= ltt_trace_get_num_cpu(tc
->t
);
465 nb_irq
= tcs
->nb_irqs
;
466 tcs
->processes
= NULL
;
467 tcs
->usertraces
= NULL
;
468 tcs
->running_process
= g_new(LttvProcessState
*, nb_cpu
);
470 /* init cpu resource stuff */
471 tcs
->cpu_states
= g_new(LttvCPUState
, nb_cpu
);
472 for(j
= 0; j
<nb_cpu
; j
++) {
473 tcs
->cpu_states
[j
].mode_stack
= g_array_new(FALSE
, FALSE
, sizeof(LttvCPUMode
));
474 g_assert(tcs
->cpu_states
[j
].mode_stack
!= NULL
);
477 /* init irq resource stuff */
478 tcs
->irq_states
= g_new(LttvIRQState
, nb_irq
);
479 for(j
= 0; j
<nb_irq
; j
++) {
480 tcs
->irq_states
[j
].mode_stack
= g_array_new(FALSE
, FALSE
, sizeof(LttvIRQMode
));
481 g_assert(tcs
->irq_states
[j
].mode_stack
!= NULL
);
484 /* init bdev resource stuff */
485 tcs
->bdev_states
= g_hash_table_new(g_int_hash
, g_int_equal
);
487 restore_init_state(tcs
);
488 for(j
= 0 ; j
< nb_tracefile
; j
++) {
490 LTTV_TRACEFILE_STATE(g_array_index(tc
->tracefiles
,
491 LttvTracefileContext
*, j
));
492 tfcs
->tracefile_name
= ltt_tracefile_name(tfcs
->parent
.tf
);
493 tfcs
->cpu
= ltt_tracefile_cpu(tfcs
->parent
.tf
);
494 tfcs
->cpu_state
= &(tcs
->cpu_states
[tfcs
->cpu
]);
495 if(ltt_tracefile_tid(tfcs
->parent
.tf
) != 0) {
496 /* It's a Usertrace */
497 guint tid
= ltt_tracefile_tid(tfcs
->parent
.tf
);
498 GTree
*usertrace_tree
= (GTree
*)g_hash_table_lookup(tcs
->usertraces
,
500 if(!usertrace_tree
) {
501 usertrace_tree
= g_tree_new_full(compare_usertraces
,
502 NULL
, free_usertrace_key
, NULL
);
503 g_hash_table_insert(tcs
->usertraces
,
504 (gpointer
)tid
, usertrace_tree
);
506 LttTime
*timestamp
= g_new(LttTime
, 1);
507 *timestamp
= ltt_interpolate_time_from_tsc(tfcs
->parent
.tf
,
508 ltt_tracefile_creation(tfcs
->parent
.tf
));
509 g_tree_insert(usertrace_tree
, timestamp
, tfcs
);
513 /* See if the trace has saved states */
514 state_load_saved_states(tcs
);
519 fini(LttvTracesetState
*self
)
525 //LttvTracefileState *tfcs;
527 LttvAttributeValue v
;
529 nb_trace
= lttv_traceset_number(LTTV_TRACESET_CONTEXT(self
)->ts
);
530 for(i
= 0 ; i
< nb_trace
; i
++) {
531 tcs
= (LttvTraceState
*)(LTTV_TRACESET_CONTEXT(self
)->traces
[i
]);
532 lttv_attribute_find(tcs
->parent
.t_a
, LTTV_STATE_TRACE_STATE_USE_COUNT
,
535 g_assert(*(v
.v_uint
) != 0);
538 if(*(v
.v_uint
) == 0) {
539 free_name_tables(tcs
);
541 free_saved_state(tcs
);
543 g_free(tcs
->running_process
);
544 tcs
->running_process
= NULL
;
545 lttv_state_free_process_table(tcs
->processes
);
546 lttv_state_free_usertraces(tcs
->usertraces
);
547 tcs
->processes
= NULL
;
548 tcs
->usertraces
= NULL
;
550 LTTV_TRACESET_CONTEXT_CLASS(g_type_class_peek(LTTV_TRACESET_CONTEXT_TYPE
))->
551 fini((LttvTracesetContext
*)self
);
555 static LttvTracesetContext
*
556 new_traceset_context(LttvTracesetContext
*self
)
558 return LTTV_TRACESET_CONTEXT(g_object_new(LTTV_TRACESET_STATE_TYPE
, NULL
));
562 static LttvTraceContext
*
563 new_trace_context(LttvTracesetContext
*self
)
565 return LTTV_TRACE_CONTEXT(g_object_new(LTTV_TRACE_STATE_TYPE
, NULL
));
569 static LttvTracefileContext
*
570 new_tracefile_context(LttvTracesetContext
*self
)
572 return LTTV_TRACEFILE_CONTEXT(g_object_new(LTTV_TRACEFILE_STATE_TYPE
, NULL
));
576 /* Write the process state of the trace */
578 static void write_process_state(gpointer key
, gpointer value
,
581 LttvProcessState
*process
;
583 LttvExecutionState
*es
;
585 FILE *fp
= (FILE *)user_data
;
590 process
= (LttvProcessState
*)value
;
592 " <PROCESS CORE=%p PID=%u TGID=%u PPID=%u TYPE=\"%s\" CTIME_S=%lu CTIME_NS=%lu ITIME_S=%lu ITIME_NS=%lu NAME=\"%s\" BRAND=\"%s\" CPU=\"%u\">\n",
593 process
, process
->pid
, process
->tgid
, process
->ppid
,
594 g_quark_to_string(process
->type
),
595 process
->creation_time
.tv_sec
,
596 process
->creation_time
.tv_nsec
,
597 process
->insertion_time
.tv_sec
,
598 process
->insertion_time
.tv_nsec
,
599 g_quark_to_string(process
->name
),
600 g_quark_to_string(process
->brand
),
603 for(i
= 0 ; i
< process
->execution_stack
->len
; i
++) {
604 es
= &g_array_index(process
->execution_stack
, LttvExecutionState
, i
);
605 fprintf(fp
, " <ES MODE=\"%s\" SUBMODE=\"%s\" ENTRY_S=%lu ENTRY_NS=%lu",
606 g_quark_to_string(es
->t
), g_quark_to_string(es
->n
),
607 es
->entry
.tv_sec
, es
->entry
.tv_nsec
);
608 fprintf(fp
, " CHANGE_S=%lu CHANGE_NS=%lu STATUS=\"%s\"/>\n",
609 es
->change
.tv_sec
, es
->change
.tv_nsec
, g_quark_to_string(es
->s
));
612 for(i
= 0 ; i
< process
->user_stack
->len
; i
++) {
613 address
= g_array_index(process
->user_stack
, guint64
, i
);
614 fprintf(fp
, " <USER_STACK ADDRESS=\"%llu\"/>\n",
618 if(process
->usertrace
) {
619 fprintf(fp
, " <USERTRACE NAME=\"%s\" CPU=%u\n/>",
620 g_quark_to_string(process
->usertrace
->tracefile_name
),
621 process
->usertrace
->cpu
);
625 fprintf(fp
, " </PROCESS>\n");
629 void lttv_state_write(LttvTraceState
*self
, LttTime t
, FILE *fp
)
631 guint i
, nb_tracefile
, nb_block
, offset
;
634 LttvTracefileState
*tfcs
;
638 LttEventPosition
*ep
;
642 ep
= ltt_event_position_new();
644 fprintf(fp
,"<PROCESS_STATE TIME_S=%lu TIME_NS=%lu>\n", t
.tv_sec
, t
.tv_nsec
);
646 g_hash_table_foreach(self
->processes
, write_process_state
, fp
);
648 nb_cpus
= ltt_trace_get_num_cpu(self
->parent
.t
);
649 for(i
=0;i
<nb_cpus
;i
++) {
650 fprintf(fp
," <CPU NUM=%u RUNNING_PROCESS=%u>\n",
651 i
, self
->running_process
[i
]->pid
);
654 nb_tracefile
= self
->parent
.tracefiles
->len
;
656 for(i
= 0 ; i
< nb_tracefile
; i
++) {
658 LTTV_TRACEFILE_STATE(g_array_index(self
->parent
.tracefiles
,
659 LttvTracefileContext
*, i
));
660 fprintf(fp
, " <TRACEFILE TIMESTAMP_S=%lu TIMESTAMP_NS=%lu",
661 tfcs
->parent
.timestamp
.tv_sec
,
662 tfcs
->parent
.timestamp
.tv_nsec
);
663 LttEvent
*e
= ltt_tracefile_get_event(tfcs
->parent
.tf
);
664 if(e
== NULL
) fprintf(fp
,"/>\n");
666 ltt_event_position(e
, ep
);
667 ltt_event_position_get(ep
, &tf
, &nb_block
, &offset
, &tsc
);
668 fprintf(fp
, " BLOCK=%u OFFSET=%u TSC=%llu/>\n", nb_block
, offset
,
673 fprintf(fp
,"</PROCESS_STATE>\n");
677 static void write_process_state_raw(gpointer key
, gpointer value
,
680 LttvProcessState
*process
;
682 LttvExecutionState
*es
;
684 FILE *fp
= (FILE *)user_data
;
689 process
= (LttvProcessState
*)value
;
690 fputc(HDR_PROCESS
, fp
);
691 //fwrite(&header, sizeof(header), 1, fp);
692 //fprintf(fp, "%s", g_quark_to_string(process->type));
694 fwrite(&process
->type
, sizeof(process
->type
), 1, fp
);
695 //fprintf(fp, "%s", g_quark_to_string(process->name));
697 fwrite(&process
->name
, sizeof(process
->name
), 1, fp
);
698 //fprintf(fp, "%s", g_quark_to_string(process->brand));
700 fwrite(&process
->brand
, sizeof(process
->brand
), 1, fp
);
701 fwrite(&process
->pid
, sizeof(process
->pid
), 1, fp
);
702 fwrite(&process
->tgid
, sizeof(process
->tgid
), 1, fp
);
703 fwrite(&process
->ppid
, sizeof(process
->ppid
), 1, fp
);
704 fwrite(&process
->cpu
, sizeof(process
->cpu
), 1, fp
);
705 fwrite(&process
->creation_time
, sizeof(process
->creation_time
), 1, fp
);
706 fwrite(&process
->insertion_time
, sizeof(process
->insertion_time
), 1, fp
);
710 " <PROCESS CORE=%p PID=%u TGID=%u PPID=%u TYPE=\"%s\" CTIME_S=%lu CTIME_NS=%lu ITIME_S=%lu ITIME_NS=%lu NAME=\"%s\" BRAND=\"%s\" CPU=\"%u\" PROCESS_TYPE=%u>\n",
711 process
, process
->pid
, process
->tgid
, process
->ppid
,
712 g_quark_to_string(process
->type
),
713 process
->creation_time
.tv_sec
,
714 process
->creation_time
.tv_nsec
,
715 process
->insertion_time
.tv_sec
,
716 process
->insertion_time
.tv_nsec
,
717 g_quark_to_string(process
->name
),
718 g_quark_to_string(process
->brand
),
722 for(i
= 0 ; i
< process
->execution_stack
->len
; i
++) {
723 es
= &g_array_index(process
->execution_stack
, LttvExecutionState
, i
);
726 //fprintf(fp, "%s", g_quark_to_string(es->t));
728 fwrite(&es
->t
, sizeof(es
->t
), 1, fp
);
729 //fprintf(fp, "%s", g_quark_to_string(es->n));
731 fwrite(&es
->n
, sizeof(es
->n
), 1, fp
);
732 //fprintf(fp, "%s", g_quark_to_string(es->s));
734 fwrite(&es
->s
, sizeof(es
->s
), 1, fp
);
735 fwrite(&es
->entry
, sizeof(es
->entry
), 1, fp
);
736 fwrite(&es
->change
, sizeof(es
->change
), 1, fp
);
737 fwrite(&es
->cum_cpu_time
, sizeof(es
->cum_cpu_time
), 1, fp
);
739 fprintf(fp
, " <ES MODE=\"%s\" SUBMODE=\"%s\" ENTRY_S=%lu ENTRY_NS=%lu",
740 g_quark_to_string(es
->t
), g_quark_to_string(es
->n
),
741 es
->entry
.tv_sec
, es
->entry
.tv_nsec
);
742 fprintf(fp
, " CHANGE_S=%lu CHANGE_NS=%lu STATUS=\"%s\"/>\n",
743 es
->change
.tv_sec
, es
->change
.tv_nsec
, g_quark_to_string(es
->s
));
747 for(i
= 0 ; i
< process
->user_stack
->len
; i
++) {
748 address
= g_array_index(process
->user_stack
, guint64
, i
);
749 fputc(HDR_USER_STACK
, fp
);
750 fwrite(&address
, sizeof(address
), 1, fp
);
752 fprintf(fp
, " <USER_STACK ADDRESS=\"%llu\"/>\n",
757 if(process
->usertrace
) {
758 fputc(HDR_USERTRACE
, fp
);
759 //fprintf(fp, "%s", g_quark_to_string(process->usertrace->tracefile_name));
761 fwrite(&process
->usertrace
->tracefile_name
,
762 sizeof(process
->usertrace
->tracefile_name
), 1, fp
);
763 fwrite(&process
->usertrace
->cpu
, sizeof(process
->usertrace
->cpu
), 1, fp
);
765 fprintf(fp
, " <USERTRACE NAME=\"%s\" CPU=%u\n/>",
766 g_quark_to_string(process
->usertrace
->tracefile_name
),
767 process
->usertrace
->cpu
);
774 void lttv_state_write_raw(LttvTraceState
*self
, LttTime t
, FILE *fp
)
776 guint i
, nb_tracefile
, nb_block
, offset
;
779 LttvTracefileState
*tfcs
;
783 LttEventPosition
*ep
;
787 ep
= ltt_event_position_new();
789 //fprintf(fp,"<PROCESS_STATE TIME_S=%lu TIME_NS=%lu>\n", t.tv_sec, t.tv_nsec);
790 fputc(HDR_PROCESS_STATE
, fp
);
791 fwrite(&t
, sizeof(t
), 1, fp
);
793 g_hash_table_foreach(self
->processes
, write_process_state_raw
, fp
);
795 nb_cpus
= ltt_trace_get_num_cpu(self
->parent
.t
);
796 for(i
=0;i
<nb_cpus
;i
++) {
798 fwrite(&i
, sizeof(i
), 1, fp
); /* cpu number */
799 fwrite(&self
->running_process
[i
]->pid
,
800 sizeof(self
->running_process
[i
]->pid
), 1, fp
);
801 //fprintf(fp," <CPU NUM=%u RUNNING_PROCESS=%u>\n",
802 // i, self->running_process[i]->pid);
805 nb_tracefile
= self
->parent
.tracefiles
->len
;
807 for(i
= 0 ; i
< nb_tracefile
; i
++) {
809 LTTV_TRACEFILE_STATE(g_array_index(self
->parent
.tracefiles
,
810 LttvTracefileContext
*, i
));
811 // fprintf(fp, " <TRACEFILE TIMESTAMP_S=%lu TIMESTAMP_NS=%lu",
812 // tfcs->parent.timestamp.tv_sec,
813 // tfcs->parent.timestamp.tv_nsec);
814 fputc(HDR_TRACEFILE
, fp
);
815 fwrite(&tfcs
->parent
.timestamp
, sizeof(tfcs
->parent
.timestamp
), 1, fp
);
816 /* Note : if timestamp if LTT_TIME_INFINITE, there will be no
817 * position following : end of trace */
818 LttEvent
*e
= ltt_tracefile_get_event(tfcs
->parent
.tf
);
820 ltt_event_position(e
, ep
);
821 ltt_event_position_get(ep
, &tf
, &nb_block
, &offset
, &tsc
);
822 //fprintf(fp, " BLOCK=%u OFFSET=%u TSC=%llu/>\n", nb_block, offset,
824 fwrite(&nb_block
, sizeof(nb_block
), 1, fp
);
825 fwrite(&offset
, sizeof(offset
), 1, fp
);
826 fwrite(&tsc
, sizeof(tsc
), 1, fp
);
833 /* Read process state from a file */
835 /* Called because a HDR_PROCESS was found */
836 static void read_process_state_raw(LttvTraceState
*self
, FILE *fp
,
837 GPtrArray
*quarktable
)
839 LttvExecutionState
*es
;
840 LttvProcessState
*process
, *parent_process
;
841 LttvProcessState tmp
;
846 /* TODO : check return value */
847 fread(&tmp
.type
, sizeof(tmp
.type
), 1, fp
);
848 fread(&tmp
.name
, sizeof(tmp
.name
), 1, fp
);
849 fread(&tmp
.brand
, sizeof(tmp
.brand
), 1, fp
);
850 fread(&tmp
.pid
, sizeof(tmp
.pid
), 1, fp
);
851 fread(&tmp
.tgid
, sizeof(tmp
.tgid
), 1, fp
);
852 fread(&tmp
.ppid
, sizeof(tmp
.ppid
), 1, fp
);
853 fread(&tmp
.cpu
, sizeof(tmp
.cpu
), 1, fp
);
854 fread(&tmp
.creation_time
, sizeof(tmp
.creation_time
), 1, fp
);
855 fread(&tmp
.insertion_time
, sizeof(tmp
.insertion_time
), 1, fp
);
858 process
= lttv_state_find_process(self
, tmp
.cpu
, tmp
.pid
);
860 /* We must link to the parent */
861 parent_process
= lttv_state_find_process_or_create(self
, ANY_CPU
, tmp
.ppid
,
863 process
= lttv_state_find_process(self
, ANY_CPU
, tmp
.pid
);
864 if(process
== NULL
) {
865 process
= lttv_state_create_process(self
, parent_process
, tmp
.cpu
,
867 g_quark_from_string((gchar
*)g_ptr_array_index(quarktable
, tmp
.name
)),
871 process
->insertion_time
= tmp
.insertion_time
;
872 process
->creation_time
= tmp
.creation_time
;
873 process
->type
= g_quark_from_string(
874 (gchar
*)g_ptr_array_index(quarktable
, tmp
.type
));
875 process
->tgid
= tmp
.tgid
;
876 process
->ppid
= tmp
.ppid
;
877 process
->brand
= g_quark_from_string(
878 (gchar
*)g_ptr_array_index(quarktable
, tmp
.brand
));
880 g_quark_from_string((gchar
*)g_ptr_array_index(quarktable
, tmp
.name
));
884 if(feof(fp
) || ferror(fp
)) goto end_loop
;
886 gint hdr
= fgetc(fp
);
887 if(hdr
== EOF
) goto end_loop
;
891 process
->execution_stack
=
892 g_array_set_size(process
->execution_stack
,
893 process
->execution_stack
->len
+ 1);
894 es
= &g_array_index(process
->execution_stack
, LttvExecutionState
,
895 process
->execution_stack
->len
-1);
898 fread(&es
->t
, sizeof(es
->t
), 1, fp
);
899 es
->t
= g_quark_from_string(
900 (gchar
*)g_ptr_array_index(quarktable
, es
->t
));
901 fread(&es
->n
, sizeof(es
->n
), 1, fp
);
902 es
->n
= g_quark_from_string(
903 (gchar
*)g_ptr_array_index(quarktable
, es
->n
));
904 fread(&es
->s
, sizeof(es
->s
), 1, fp
);
905 es
->s
= g_quark_from_string(
906 (gchar
*)g_ptr_array_index(quarktable
, es
->s
));
907 fread(&es
->entry
, sizeof(es
->entry
), 1, fp
);
908 fread(&es
->change
, sizeof(es
->change
), 1, fp
);
909 fread(&es
->cum_cpu_time
, sizeof(es
->cum_cpu_time
), 1, fp
);
912 process
->user_stack
= g_array_set_size(process
->user_stack
,
913 process
->user_stack
->len
+ 1);
914 address
= &g_array_index(process
->user_stack
, guint64
,
915 process
->user_stack
->len
-1);
916 fread(address
, sizeof(address
), 1, fp
);
917 process
->current_function
= *address
;
920 fread(&tmpq
, sizeof(tmpq
), 1, fp
);
921 fread(&process
->usertrace
->cpu
, sizeof(process
->usertrace
->cpu
), 1, fp
);
933 /* Called because a HDR_PROCESS_STATE was found */
934 /* Append a saved state to the trace states */
935 void lttv_state_read_raw(LttvTraceState
*self
, FILE *fp
, GPtrArray
*quarktable
)
937 guint i
, nb_tracefile
, nb_block
, offset
;
939 LttvTracefileState
*tfcs
;
941 LttEventPosition
*ep
;
949 LttvAttribute
*saved_states_tree
, *saved_state_tree
;
951 LttvAttributeValue value
;
952 GTree
*pqueue
= self
->parent
.ts_context
->pqueue
;
953 ep
= ltt_event_position_new();
955 restore_init_state(self
);
957 fread(&t
, sizeof(t
), 1, fp
);
960 if(feof(fp
) || ferror(fp
)) goto end_loop
;
962 if(hdr
== EOF
) goto end_loop
;
966 /* Call read_process_state_raw */
967 read_process_state_raw(self
, fp
, quarktable
);
977 case HDR_PROCESS_STATE
:
983 g_error("Error while parsing saved state file : unknown data header %d",
989 nb_cpus
= ltt_trace_get_num_cpu(self
->parent
.t
);
990 for(i
=0;i
<nb_cpus
;i
++) {
993 g_assert(hdr
== HDR_CPU
);
994 fread(&cpu_num
, sizeof(cpu_num
), 1, fp
); /* cpu number */
995 g_assert(i
== cpu_num
);
996 fread(&self
->running_process
[i
]->pid
,
997 sizeof(self
->running_process
[i
]->pid
), 1, fp
);
1000 nb_tracefile
= self
->parent
.tracefiles
->len
;
1002 for(i
= 0 ; i
< nb_tracefile
; i
++) {
1004 LTTV_TRACEFILE_STATE(g_array_index(self
->parent
.tracefiles
,
1005 LttvTracefileContext
*, i
));
1006 // fprintf(fp, " <TRACEFILE TIMESTAMP_S=%lu TIMESTAMP_NS=%lu",
1007 // tfcs->parent.timestamp.tv_sec,
1008 // tfcs->parent.timestamp.tv_nsec);
1009 g_tree_remove(pqueue
, &tfcs
->parent
);
1011 g_assert(hdr
== HDR_TRACEFILE
);
1012 fread(&tfcs
->parent
.timestamp
, sizeof(tfcs
->parent
.timestamp
), 1, fp
);
1013 /* Note : if timestamp if LTT_TIME_INFINITE, there will be no
1014 * position following : end of trace */
1015 if(ltt_time_compare(tfcs
->parent
.timestamp
, ltt_time_infinite
) != 0) {
1016 fread(&nb_block
, sizeof(nb_block
), 1, fp
);
1017 fread(&offset
, sizeof(offset
), 1, fp
);
1018 fread(&tsc
, sizeof(tsc
), 1, fp
);
1019 ltt_event_position_set(ep
, tfcs
->parent
.tf
, nb_block
, offset
, tsc
);
1020 gint ret
= ltt_tracefile_seek_position(tfcs
->parent
.tf
, ep
);
1022 g_tree_insert(pqueue
, &tfcs
->parent
, &tfcs
->parent
);
1027 saved_states_tree
= lttv_attribute_find_subdir(self
->parent
.t_a
,
1028 LTTV_STATE_SAVED_STATES
);
1029 saved_state_tree
= g_object_new(LTTV_ATTRIBUTE_TYPE
, NULL
);
1030 value
= lttv_attribute_add(saved_states_tree
,
1031 lttv_attribute_get_number(saved_states_tree
), LTTV_GOBJECT
);
1032 *(value
.v_gobject
) = (GObject
*)saved_state_tree
;
1033 value
= lttv_attribute_add(saved_state_tree
, LTTV_STATE_TIME
, LTTV_TIME
);
1034 *(value
.v_time
) = t
;
1035 lttv_state_save(self
, saved_state_tree
);
1036 g_debug("Saving state at time %lu.%lu", t
.tv_sec
,
1039 *(self
->max_time_state_recomputed_in_seek
) = t
;
1043 /* Called when a HDR_TRACE is found */
1044 void lttv_trace_states_read_raw(LttvTraceState
*tcs
, FILE *fp
,
1045 GPtrArray
*quarktable
)
1050 if(feof(fp
) || ferror(fp
)) goto end_loop
;
1052 if(hdr
== EOF
) goto end_loop
;
1055 case HDR_PROCESS_STATE
:
1056 /* Call read_process_state_raw */
1057 lttv_state_read_raw(tcs
, fp
, quarktable
);
1065 case HDR_USER_STACK
:
1069 g_error("Error while parsing saved state file :"
1070 " unexpected data header %d",
1074 g_error("Error while parsing saved state file : unknown data header %d",
1079 *(tcs
->max_time_state_recomputed_in_seek
) = tcs
->parent
.time_span
.end_time
;
1080 restore_init_state(tcs
);
1081 lttv_process_trace_seek_time(&tcs
->parent
, ltt_time_zero
);
1087 /* Copy each process from an existing hash table to a new one */
1089 static void copy_process_state(gpointer key
, gpointer value
,gpointer user_data
)
1091 LttvProcessState
*process
, *new_process
;
1093 GHashTable
*new_processes
= (GHashTable
*)user_data
;
1097 process
= (LttvProcessState
*)value
;
1098 new_process
= g_new(LttvProcessState
, 1);
1099 *new_process
= *process
;
1100 new_process
->execution_stack
= g_array_sized_new(FALSE
, FALSE
,
1101 sizeof(LttvExecutionState
), PREALLOCATED_EXECUTION_STACK
);
1102 new_process
->execution_stack
=
1103 g_array_set_size(new_process
->execution_stack
,
1104 process
->execution_stack
->len
);
1105 for(i
= 0 ; i
< process
->execution_stack
->len
; i
++) {
1106 g_array_index(new_process
->execution_stack
, LttvExecutionState
, i
) =
1107 g_array_index(process
->execution_stack
, LttvExecutionState
, i
);
1109 new_process
->state
= &g_array_index(new_process
->execution_stack
,
1110 LttvExecutionState
, new_process
->execution_stack
->len
- 1);
1111 new_process
->user_stack
= g_array_sized_new(FALSE
, FALSE
,
1112 sizeof(guint64
), 0);
1113 new_process
->user_stack
=
1114 g_array_set_size(new_process
->user_stack
,
1115 process
->user_stack
->len
);
1116 for(i
= 0 ; i
< process
->user_stack
->len
; i
++) {
1117 g_array_index(new_process
->user_stack
, guint64
, i
) =
1118 g_array_index(process
->user_stack
, guint64
, i
);
1120 new_process
->current_function
= process
->current_function
;
1121 g_hash_table_insert(new_processes
, new_process
, new_process
);
1125 static GHashTable
*lttv_state_copy_process_table(GHashTable
*processes
)
1127 GHashTable
*new_processes
= g_hash_table_new(process_hash
, process_equal
);
1129 g_hash_table_foreach(processes
, copy_process_state
, new_processes
);
1130 return new_processes
;
1133 static LttvCPUState
*lttv_state_copy_cpu_states(LttvCPUState
*states
, guint n
)
1136 LttvCPUState
*retval
;
1138 retval
= g_malloc(n
*sizeof(LttvCPUState
));
1140 for(i
=0; i
<n
; i
++) {
1141 retval
[i
].mode_stack
= g_array_new(FALSE
, FALSE
, sizeof(LttvCPUMode
));
1142 retval
[i
].last_irq
= states
[i
].last_irq
;
1143 g_array_set_size(retval
[i
].mode_stack
, states
[i
].mode_stack
->len
);
1144 for(j
=0; j
<states
[i
].mode_stack
->len
; j
++) {
1145 g_array_index(retval
[i
].mode_stack
, GQuark
, j
) = g_array_index(states
[i
].mode_stack
, GQuark
, j
);
1152 static void lttv_state_free_cpu_states(LttvCPUState
*states
, guint n
)
1156 for(i
=0; i
<n
; i
++) {
1157 g_array_free(states
[i
].mode_stack
, FALSE
);
1163 static LttvIRQState
*lttv_state_copy_irq_states(LttvIRQState
*states
, guint n
)
1166 LttvIRQState
*retval
;
1168 retval
= g_malloc(n
*sizeof(LttvIRQState
));
1170 for(i
=0; i
<n
; i
++) {
1171 retval
[i
].mode_stack
= g_array_new(FALSE
, FALSE
, sizeof(LttvIRQMode
));
1172 g_array_set_size(retval
[i
].mode_stack
, states
[i
].mode_stack
->len
);
1173 for(j
=0; j
<states
[i
].mode_stack
->len
; j
++) {
1174 g_array_index(retval
[i
].mode_stack
, GQuark
, j
) = g_array_index(states
[i
].mode_stack
, GQuark
, j
);
1181 static void lttv_state_free_irq_states(LttvIRQState
*states
, guint n
)
1185 for(i
=0; i
<n
; i
++) {
1186 g_array_free(states
[i
].mode_stack
, FALSE
);
1192 /* bdevstate stuff */
1194 static LttvBdevState
*get_hashed_bdevstate(LttvTraceState
*ts
, guint16 devcode
)
1196 gint devcode_gint
= devcode
;
1197 gpointer bdev
= g_hash_table_lookup(ts
->bdev_states
, &devcode_gint
);
1199 LttvBdevState
*bdevstate
= g_malloc(sizeof(LttvBdevState
));
1200 bdevstate
->mode_stack
= g_array_new(FALSE
, FALSE
, sizeof(GQuark
));
1202 gint
* key
= g_malloc(sizeof(gint
));
1204 g_hash_table_insert(ts
->bdev_states
, key
, bdevstate
);
1212 static LttvBdevState
*bdevstate_new(void)
1214 LttvBdevState
*retval
;
1215 retval
= g_malloc(sizeof(LttvBdevState
));
1216 retval
->mode_stack
= g_array_new(FALSE
, FALSE
, sizeof(GQuark
));
1221 static void bdevstate_free(LttvBdevState
*bds
)
1223 g_array_free(bds
->mode_stack
, FALSE
);
1227 static void bdevstate_free_cb(gpointer key
, gpointer value
, gpointer user_data
)
1229 LttvBdevState
*bds
= (LttvBdevState
*) value
;
1231 bdevstate_free(bds
);
1234 static LttvBdevState
*bdevstate_copy(LttvBdevState
*bds
)
1236 LttvBdevState
*retval
;
1238 retval
= bdevstate_new();
1239 g_array_insert_vals(retval
->mode_stack
, 0, bds
->mode_stack
->data
, bds
->mode_stack
->len
);
1244 static void insert_and_copy_bdev_state(gpointer k
, gpointer v
, gpointer u
)
1246 //GHashTable *ht = (GHashTable *)u;
1247 LttvBdevState
*bds
= (LttvBdevState
*)v
;
1248 LttvBdevState
*newbds
;
1250 newbds
= bdevstate_copy(bds
);
1252 g_hash_table_insert(u
, k
, newbds
);
1255 static GHashTable
*lttv_state_copy_blkdev_hashtable(GHashTable
*ht
)
1259 retval
= g_hash_table_new(g_int_hash
, g_int_equal
);
1261 g_hash_table_foreach(ht
, insert_and_copy_bdev_state
, retval
);
1266 /* Free a hashtable and the LttvBdevState structures its values
1269 static void lttv_state_free_blkdev_hashtable(GHashTable
*ht
)
1271 g_hash_table_foreach(ht
, bdevstate_free_cb
, NULL
);
1272 g_hash_table_destroy(ht
);
1275 /* The saved state for each trace contains a member "processes", which
1276 stores a copy of the process table, and a member "tracefiles" with
1277 one entry per tracefile. Each tracefile has a "process" member pointing
1278 to the current process and a "position" member storing the tracefile
1279 position (needed to seek to the current "next" event. */
1281 static void state_save(LttvTraceState
*self
, LttvAttribute
*container
)
1283 guint i
, nb_tracefile
, nb_cpus
, nb_irqs
;
1285 LttvTracefileState
*tfcs
;
1287 LttvAttribute
*tracefiles_tree
, *tracefile_tree
;
1289 guint
*running_process
;
1291 LttvAttributeValue value
;
1293 LttEventPosition
*ep
;
1295 tracefiles_tree
= lttv_attribute_find_subdir(container
,
1296 LTTV_STATE_TRACEFILES
);
1298 value
= lttv_attribute_add(container
, LTTV_STATE_PROCESSES
,
1300 *(value
.v_pointer
) = lttv_state_copy_process_table(self
->processes
);
1302 /* Add the currently running processes array */
1303 nb_cpus
= ltt_trace_get_num_cpu(self
->parent
.t
);
1304 running_process
= g_new(guint
, nb_cpus
);
1305 for(i
=0;i
<nb_cpus
;i
++) {
1306 running_process
[i
] = self
->running_process
[i
]->pid
;
1308 value
= lttv_attribute_add(container
, LTTV_STATE_RUNNING_PROCESS
,
1310 *(value
.v_pointer
) = running_process
;
1312 g_info("State save");
1314 nb_tracefile
= self
->parent
.tracefiles
->len
;
1316 for(i
= 0 ; i
< nb_tracefile
; i
++) {
1318 LTTV_TRACEFILE_STATE(g_array_index(self
->parent
.tracefiles
,
1319 LttvTracefileContext
*, i
));
1320 tracefile_tree
= g_object_new(LTTV_ATTRIBUTE_TYPE
, NULL
);
1321 value
= lttv_attribute_add(tracefiles_tree
, i
,
1323 *(value
.v_gobject
) = (GObject
*)tracefile_tree
;
1325 value
= lttv_attribute_add(tracefile_tree
, LTTV_STATE_PROCESS
,
1327 *(value
.v_uint
) = tfcs
->process
->pid
;
1329 value
= lttv_attribute_add(tracefile_tree
, LTTV_STATE_EVENT
,
1331 /* Only save the position if the tfs has not infinite time. */
1332 //if(!g_tree_lookup(self->parent.ts_context->pqueue, &tfcs->parent)
1333 // && current_tfcs != tfcs) {
1334 if(ltt_time_compare(tfcs
->parent
.timestamp
, ltt_time_infinite
) == 0) {
1335 *(value
.v_pointer
) = NULL
;
1337 LttEvent
*e
= ltt_tracefile_get_event(tfcs
->parent
.tf
);
1338 ep
= ltt_event_position_new();
1339 ltt_event_position(e
, ep
);
1340 *(value
.v_pointer
) = ep
;
1342 guint nb_block
, offset
;
1345 ltt_event_position_get(ep
, &tf
, &nb_block
, &offset
, &tsc
);
1346 g_info("Block %u offset %u tsc %llu time %lu.%lu", nb_block
, offset
,
1348 tfcs
->parent
.timestamp
.tv_sec
, tfcs
->parent
.timestamp
.tv_nsec
);
1352 /* save the cpu state */
1354 value
= lttv_attribute_add(container
, LTTV_STATE_RESOURCE_CPUS
,
1356 *(value
.v_pointer
) = lttv_state_copy_cpu_states(self
->cpu_states
, nb_cpus
);
1359 /* save the irq state */
1360 nb_irqs
= self
->nb_irqs
;
1362 value
= lttv_attribute_add(container
, LTTV_STATE_RESOURCE_IRQS
,
1364 *(value
.v_pointer
) = lttv_state_copy_irq_states(self
->irq_states
, nb_irqs
);
1367 /* save the blkdev states */
1368 value
= lttv_attribute_add(container
, LTTV_STATE_RESOURCE_BLKDEVS
,
1370 *(value
.v_pointer
) = lttv_state_copy_blkdev_hashtable(self
->bdev_states
);
1374 static void state_restore(LttvTraceState
*self
, LttvAttribute
*container
)
1376 guint i
, nb_tracefile
, pid
, nb_cpus
, nb_irqs
;
1378 LttvTracefileState
*tfcs
;
1380 LttvAttribute
*tracefiles_tree
, *tracefile_tree
;
1382 guint
*running_process
;
1384 LttvAttributeType type
;
1386 LttvAttributeValue value
;
1388 LttvAttributeName name
;
1392 LttEventPosition
*ep
;
1394 LttvTracesetContext
*tsc
= self
->parent
.ts_context
;
1396 tracefiles_tree
= lttv_attribute_find_subdir(container
,
1397 LTTV_STATE_TRACEFILES
);
1399 type
= lttv_attribute_get_by_name(container
, LTTV_STATE_PROCESSES
,
1401 g_assert(type
== LTTV_POINTER
);
1402 lttv_state_free_process_table(self
->processes
);
1403 self
->processes
= lttv_state_copy_process_table(*(value
.v_pointer
));
1405 /* Add the currently running processes array */
1406 nb_cpus
= ltt_trace_get_num_cpu(self
->parent
.t
);
1407 type
= lttv_attribute_get_by_name(container
, LTTV_STATE_RUNNING_PROCESS
,
1409 g_assert(type
== LTTV_POINTER
);
1410 running_process
= *(value
.v_pointer
);
1411 for(i
=0;i
<nb_cpus
;i
++) {
1412 pid
= running_process
[i
];
1413 self
->running_process
[i
] = lttv_state_find_process(self
, i
, pid
);
1414 g_assert(self
->running_process
[i
] != NULL
);
1417 nb_tracefile
= self
->parent
.tracefiles
->len
;
1419 //g_tree_destroy(tsc->pqueue);
1420 //tsc->pqueue = g_tree_new(compare_tracefile);
1422 /* restore cpu resource states */
1423 type
= lttv_attribute_get_by_name(container
, LTTV_STATE_RESOURCE_CPUS
, &value
);
1424 g_assert(type
== LTTV_POINTER
);
1425 lttv_state_free_cpu_states(self
->cpu_states
, nb_cpus
);
1426 self
->cpu_states
= lttv_state_copy_cpu_states(*(value
.v_pointer
), nb_cpus
);
1428 /* restore irq resource states */
1429 nb_irqs
= self
->nb_irqs
;
1430 type
= lttv_attribute_get_by_name(container
, LTTV_STATE_RESOURCE_IRQS
, &value
);
1431 g_assert(type
== LTTV_POINTER
);
1432 lttv_state_free_irq_states(self
->irq_states
, nb_irqs
);
1433 self
->irq_states
= lttv_state_copy_irq_states(*(value
.v_pointer
), nb_irqs
);
1435 /* restore the blkdev states */
1436 type
= lttv_attribute_get_by_name(container
, LTTV_STATE_RESOURCE_BLKDEVS
, &value
);
1437 g_assert(type
== LTTV_POINTER
);
1438 lttv_state_free_blkdev_hashtable(self
->bdev_states
);
1439 self
->bdev_states
= lttv_state_copy_blkdev_hashtable(*(value
.v_pointer
));
1441 for(i
= 0 ; i
< nb_tracefile
; i
++) {
1443 LTTV_TRACEFILE_STATE(g_array_index(self
->parent
.tracefiles
,
1444 LttvTracefileContext
*, i
));
1445 type
= lttv_attribute_get(tracefiles_tree
, i
, &name
, &value
, &is_named
);
1446 g_assert(type
== LTTV_GOBJECT
);
1447 tracefile_tree
= *((LttvAttribute
**)(value
.v_gobject
));
1449 type
= lttv_attribute_get_by_name(tracefile_tree
, LTTV_STATE_PROCESS
,
1451 g_assert(type
== LTTV_UINT
);
1452 pid
= *(value
.v_uint
);
1453 tfcs
->process
= lttv_state_find_process_or_create(tfcs
, pid
);
1455 type
= lttv_attribute_get_by_name(tracefile_tree
, LTTV_STATE_EVENT
,
1457 g_assert(type
== LTTV_POINTER
);
1458 //g_assert(*(value.v_pointer) != NULL);
1459 ep
= *(value
.v_pointer
);
1460 g_assert(tfcs
->parent
.t_context
!= NULL
);
1462 tfcs
->cpu_state
= &self
->cpu_states
[tfcs
->cpu
];
1464 LttvTracefileContext
*tfc
= LTTV_TRACEFILE_CONTEXT(tfcs
);
1465 g_tree_remove(tsc
->pqueue
, tfc
);
1468 g_assert(ltt_tracefile_seek_position(tfc
->tf
, ep
) == 0);
1469 tfc
->timestamp
= ltt_event_time(ltt_tracefile_get_event(tfc
->tf
));
1470 g_assert(ltt_time_compare(tfc
->timestamp
, ltt_time_infinite
) != 0);
1471 g_tree_insert(tsc
->pqueue
, tfc
, tfc
);
1472 g_info("Restoring state for a tf at time %lu.%lu", tfc
->timestamp
.tv_sec
, tfc
->timestamp
.tv_nsec
);
1474 tfc
->timestamp
= ltt_time_infinite
;
1480 static void state_saved_free(LttvTraceState
*self
, LttvAttribute
*container
)
1482 guint i
, nb_tracefile
, nb_cpus
;
1484 LttvTracefileState
*tfcs
;
1486 LttvAttribute
*tracefiles_tree
, *tracefile_tree
;
1488 guint
*running_process
;
1490 LttvAttributeType type
;
1492 LttvAttributeValue value
;
1494 LttvAttributeName name
;
1498 tracefiles_tree
= lttv_attribute_find_subdir(container
,
1499 LTTV_STATE_TRACEFILES
);
1500 g_object_ref(G_OBJECT(tracefiles_tree
));
1501 lttv_attribute_remove_by_name(container
, LTTV_STATE_TRACEFILES
);
1503 type
= lttv_attribute_get_by_name(container
, LTTV_STATE_PROCESSES
,
1505 g_assert(type
== LTTV_POINTER
);
1506 lttv_state_free_process_table(*(value
.v_pointer
));
1507 *(value
.v_pointer
) = NULL
;
1508 lttv_attribute_remove_by_name(container
, LTTV_STATE_PROCESSES
);
1510 /* Free running processes array */
1511 nb_cpus
= ltt_trace_get_num_cpu(self
->parent
.t
);
1512 type
= lttv_attribute_get_by_name(container
, LTTV_STATE_RUNNING_PROCESS
,
1514 g_assert(type
== LTTV_POINTER
);
1515 running_process
= *(value
.v_pointer
);
1516 g_free(running_process
);
1518 nb_tracefile
= self
->parent
.tracefiles
->len
;
1520 for(i
= 0 ; i
< nb_tracefile
; i
++) {
1522 LTTV_TRACEFILE_STATE(g_array_index(self
->parent
.tracefiles
,
1523 LttvTracefileContext
*, i
));
1524 type
= lttv_attribute_get(tracefiles_tree
, i
, &name
, &value
, &is_named
);
1525 g_assert(type
== LTTV_GOBJECT
);
1526 tracefile_tree
= *((LttvAttribute
**)(value
.v_gobject
));
1528 type
= lttv_attribute_get_by_name(tracefile_tree
, LTTV_STATE_EVENT
,
1530 g_assert(type
== LTTV_POINTER
);
1531 if(*(value
.v_pointer
) != NULL
) g_free(*(value
.v_pointer
));
1533 g_object_unref(G_OBJECT(tracefiles_tree
));
1537 static void free_saved_state(LttvTraceState
*self
)
1541 LttvAttributeType type
;
1543 LttvAttributeValue value
;
1545 LttvAttributeName name
;
1549 LttvAttribute
*saved_states
;
1551 saved_states
= lttv_attribute_find_subdir(self
->parent
.t_a
,
1552 LTTV_STATE_SAVED_STATES
);
1554 nb
= lttv_attribute_get_number(saved_states
);
1555 for(i
= 0 ; i
< nb
; i
++) {
1556 type
= lttv_attribute_get(saved_states
, i
, &name
, &value
, &is_named
);
1557 g_assert(type
== LTTV_GOBJECT
);
1558 state_saved_free(self
, *((LttvAttribute
**)value
.v_gobject
));
1561 lttv_attribute_remove_by_name(self
->parent
.t_a
, LTTV_STATE_SAVED_STATES
);
1566 create_max_time(LttvTraceState
*tcs
)
1568 LttvAttributeValue v
;
1570 lttv_attribute_find(tcs
->parent
.t_a
, LTTV_STATE_SAVED_STATES_TIME
,
1572 g_assert(*(v
.v_pointer
) == NULL
);
1573 *(v
.v_pointer
) = g_new(LttTime
,1);
1574 *((LttTime
*)*(v
.v_pointer
)) = ltt_time_zero
;
1579 get_max_time(LttvTraceState
*tcs
)
1581 LttvAttributeValue v
;
1583 lttv_attribute_find(tcs
->parent
.t_a
, LTTV_STATE_SAVED_STATES_TIME
,
1585 g_assert(*(v
.v_pointer
) != NULL
);
1586 tcs
->max_time_state_recomputed_in_seek
= (LttTime
*)*(v
.v_pointer
);
1591 free_max_time(LttvTraceState
*tcs
)
1593 LttvAttributeValue v
;
1595 lttv_attribute_find(tcs
->parent
.t_a
, LTTV_STATE_SAVED_STATES_TIME
,
1597 g_free(*(v
.v_pointer
));
1598 *(v
.v_pointer
) = NULL
;
1602 typedef struct _LttvNameTables
{
1603 // FIXME GQuark *eventtype_names;
1604 GQuark
*syscall_names
;
1610 GQuark
*soft_irq_names
;
1616 create_name_tables(LttvTraceState
*tcs
)
1620 GString
*fe_name
= g_string_new("");
1622 LttvNameTables
*name_tables
= g_new(LttvNameTables
, 1);
1624 LttvAttributeValue v
;
1628 lttv_attribute_find(tcs
->parent
.t_a
, LTTV_STATE_NAME_TABLES
,
1630 g_assert(*(v
.v_pointer
) == NULL
);
1631 *(v
.v_pointer
) = name_tables
;
1633 hooks
= g_array_sized_new(FALSE
, FALSE
, sizeof(LttvTraceHook
), 1);
1635 if(!lttv_trace_find_hook(tcs
->parent
.t
,
1636 LTT_FACILITY_KERNEL_ARCH
,
1637 LTT_EVENT_SYSCALL_ENTRY
,
1638 FIELD_ARRAY(LTT_FIELD_SYSCALL_ID
),
1639 NULL
, NULL
, &hooks
)) {
1641 // th = lttv_trace_hook_get_first(&th);
1643 // t = ltt_field_type(lttv_trace_get_hook_field(th, 0));
1644 // nb = ltt_type_element_number(t);
1646 // name_tables->syscall_names = g_new(GQuark, nb);
1647 // name_tables->nb_syscalls = nb;
1649 // for(i = 0 ; i < nb ; i++) {
1650 // name_tables->syscall_names[i] = ltt_enum_string_get(t, i);
1651 // if(!name_tables->syscall_names[i]) {
1652 // GString *string = g_string_new("");
1653 // g_string_printf(string, "syscall %u", i);
1654 // name_tables->syscall_names[i] = g_quark_from_string(string->str);
1655 // g_string_free(string, TRUE);
1659 name_tables
->nb_syscalls
= 256;
1660 name_tables
->syscall_names
= g_new(GQuark
, 256);
1661 for(i
= 0 ; i
< 256 ; i
++) {
1662 g_string_printf(fe_name
, "syscall %d", i
);
1663 name_tables
->syscall_names
[i
] = g_quark_from_string(fe_name
->str
);
1666 name_tables
->syscall_names
= NULL
;
1667 name_tables
->nb_syscalls
= 0;
1669 lttv_trace_hook_remove_all(&hooks
);
1671 if(!lttv_trace_find_hook(tcs
->parent
.t
,
1672 LTT_FACILITY_KERNEL_ARCH
,
1673 LTT_EVENT_TRAP_ENTRY
,
1674 FIELD_ARRAY(LTT_FIELD_TRAP_ID
),
1675 NULL
, NULL
, &hooks
)) {
1677 // th = lttv_trace_hook_get_first(&th);
1679 // t = ltt_field_type(lttv_trace_get_hook_field(th, 0));
1680 // //nb = ltt_type_element_number(t);
1682 // name_tables->trap_names = g_new(GQuark, nb);
1683 // for(i = 0 ; i < nb ; i++) {
1684 // name_tables->trap_names[i] = g_quark_from_string(
1685 // ltt_enum_string_get(t, i));
1688 name_tables
->nb_traps
= 256;
1689 name_tables
->trap_names
= g_new(GQuark
, 256);
1690 for(i
= 0 ; i
< 256 ; i
++) {
1691 g_string_printf(fe_name
, "trap %d", i
);
1692 name_tables
->trap_names
[i
] = g_quark_from_string(fe_name
->str
);
1695 name_tables
->trap_names
= NULL
;
1696 name_tables
->nb_traps
= 0;
1698 lttv_trace_hook_remove_all(&hooks
);
1700 if(!lttv_trace_find_hook(tcs
->parent
.t
,
1701 LTT_FACILITY_KERNEL
,
1702 LTT_EVENT_IRQ_ENTRY
,
1703 FIELD_ARRAY(LTT_FIELD_IRQ_ID
),
1704 NULL
, NULL
, &hooks
)) {
1707 name_tables->irq_names = g_new(GQuark, nb);
1708 for(i = 0 ; i < nb ; i++) {
1709 name_tables->irq_names[i] = g_quark_from_string(ltt_enum_string_get(t, i));
1713 name_tables
->nb_irqs
= 256;
1714 name_tables
->irq_names
= g_new(GQuark
, 256);
1715 for(i
= 0 ; i
< 256 ; i
++) {
1716 g_string_printf(fe_name
, "irq %d", i
);
1717 name_tables
->irq_names
[i
] = g_quark_from_string(fe_name
->str
);
1720 name_tables
->nb_irqs
= 0;
1721 name_tables
->irq_names
= NULL
;
1723 lttv_trace_hook_remove_all(&hooks
);
1725 name_tables->soft_irq_names = g_new(GQuark, nb);
1726 for(i = 0 ; i < nb ; i++) {
1727 name_tables->soft_irq_names[i] = g_quark_from_string(ltt_enum_string_get(t, i));
1731 name_tables
->nb_softirqs
= 256;
1732 name_tables
->soft_irq_names
= g_new(GQuark
, 256);
1733 for(i
= 0 ; i
< 256 ; i
++) {
1734 g_string_printf(fe_name
, "softirq %d", i
);
1735 name_tables
->soft_irq_names
[i
] = g_quark_from_string(fe_name
->str
);
1737 g_array_free(hooks
, TRUE
);
1739 g_string_free(fe_name
, TRUE
);
1744 get_name_tables(LttvTraceState
*tcs
)
1746 LttvNameTables
*name_tables
;
1748 LttvAttributeValue v
;
1750 lttv_attribute_find(tcs
->parent
.t_a
, LTTV_STATE_NAME_TABLES
,
1752 g_assert(*(v
.v_pointer
) != NULL
);
1753 name_tables
= (LttvNameTables
*)*(v
.v_pointer
);
1754 //tcs->eventtype_names = name_tables->eventtype_names;
1755 tcs
->syscall_names
= name_tables
->syscall_names
;
1756 tcs
->nb_syscalls
= name_tables
->nb_syscalls
;
1757 tcs
->trap_names
= name_tables
->trap_names
;
1758 tcs
->nb_traps
= name_tables
->nb_traps
;
1759 tcs
->irq_names
= name_tables
->irq_names
;
1760 tcs
->soft_irq_names
= name_tables
->soft_irq_names
;
1761 tcs
->nb_irqs
= name_tables
->nb_irqs
;
1762 tcs
->nb_softirqs
= name_tables
->nb_softirqs
;
1767 free_name_tables(LttvTraceState
*tcs
)
1769 LttvNameTables
*name_tables
;
1771 LttvAttributeValue v
;
1773 lttv_attribute_find(tcs
->parent
.t_a
, LTTV_STATE_NAME_TABLES
,
1775 name_tables
= (LttvNameTables
*)*(v
.v_pointer
);
1776 *(v
.v_pointer
) = NULL
;
1778 // g_free(name_tables->eventtype_names);
1779 if(name_tables
->syscall_names
) g_free(name_tables
->syscall_names
);
1780 if(name_tables
->trap_names
) g_free(name_tables
->trap_names
);
1781 if(name_tables
->irq_names
) g_free(name_tables
->irq_names
);
1782 if(name_tables
->soft_irq_names
) g_free(name_tables
->soft_irq_names
);
1783 if(name_tables
) g_free(name_tables
);
1786 #ifdef HASH_TABLE_DEBUG
1788 static void test_process(gpointer key
, gpointer value
, gpointer user_data
)
1790 LttvProcessState
*process
= (LttvProcessState
*)value
;
1792 /* Test for process corruption */
1793 guint stack_len
= process
->execution_stack
->len
;
1796 static void hash_table_check(GHashTable
*table
)
1798 g_hash_table_foreach(table
, test_process
, NULL
);
1804 /* clears the stack and sets the state passed as argument */
1805 static void cpu_set_base_mode(LttvCPUState
*cpust
, LttvCPUMode state
)
1807 g_array_set_size(cpust
->mode_stack
, 1);
1808 ((GQuark
*)cpust
->mode_stack
->data
)[0] = state
;
1811 static void cpu_push_mode(LttvCPUState
*cpust
, LttvCPUMode state
)
1813 g_array_set_size(cpust
->mode_stack
, cpust
->mode_stack
->len
+ 1);
1814 ((GQuark
*)cpust
->mode_stack
->data
)[cpust
->mode_stack
->len
- 1] = state
;
1817 static void cpu_pop_mode(LttvCPUState
*cpust
)
1819 if(cpust
->mode_stack
->len
<= 1)
1820 cpu_set_base_mode(cpust
, LTTV_CPU_UNKNOWN
);
1822 g_array_set_size(cpust
->mode_stack
, cpust
->mode_stack
->len
- 1);
1825 /* clears the stack and sets the state passed as argument */
1826 static void bdev_set_base_mode(LttvBdevState
*bdevst
, LttvBdevMode state
)
1828 g_array_set_size(bdevst
->mode_stack
, 1);
1829 ((GQuark
*)bdevst
->mode_stack
->data
)[0] = state
;
1832 static void bdev_push_mode(LttvBdevState
*bdevst
, LttvBdevMode state
)
1834 g_array_set_size(bdevst
->mode_stack
, bdevst
->mode_stack
->len
+ 1);
1835 ((GQuark
*)bdevst
->mode_stack
->data
)[bdevst
->mode_stack
->len
- 1] = state
;
1838 static void bdev_pop_mode(LttvBdevState
*bdevst
)
1840 if(bdevst
->mode_stack
->len
<= 1)
1841 bdev_set_base_mode(bdevst
, LTTV_BDEV_UNKNOWN
);
1843 g_array_set_size(bdevst
->mode_stack
, bdevst
->mode_stack
->len
- 1);
1846 static void irq_set_base_mode(LttvIRQState
*irqst
, LttvIRQMode state
)
1848 g_array_set_size(irqst
->mode_stack
, 1);
1849 ((GQuark
*)irqst
->mode_stack
->data
)[0] = state
;
1852 static void irq_push_mode(LttvIRQState
*irqst
, LttvIRQMode state
)
1854 g_array_set_size(irqst
->mode_stack
, irqst
->mode_stack
->len
+ 1);
1855 ((GQuark
*)irqst
->mode_stack
->data
)[irqst
->mode_stack
->len
- 1] = state
;
1858 static void irq_pop_mode(LttvIRQState
*irqst
)
1860 if(irqst
->mode_stack
->len
<= 1)
1861 irq_set_base_mode(irqst
, LTTV_IRQ_UNKNOWN
);
1863 g_array_set_size(irqst
->mode_stack
, irqst
->mode_stack
->len
- 1);
1866 static void push_state(LttvTracefileState
*tfs
, LttvExecutionMode t
,
1869 LttvExecutionState
*es
;
1871 LttvTraceState
*ts
= (LttvTraceState
*)tfs
->parent
.t_context
;
1872 guint cpu
= tfs
->cpu
;
1874 #ifdef HASH_TABLE_DEBUG
1875 hash_table_check(ts
->processes
);
1877 LttvProcessState
*process
= ts
->running_process
[cpu
];
1879 guint depth
= process
->execution_stack
->len
;
1881 process
->execution_stack
=
1882 g_array_set_size(process
->execution_stack
, depth
+ 1);
1885 &g_array_index(process
->execution_stack
, LttvExecutionState
, depth
- 1);
1887 es
= &g_array_index(process
->execution_stack
, LttvExecutionState
, depth
);
1890 es
->entry
= es
->change
= tfs
->parent
.timestamp
;
1891 es
->cum_cpu_time
= ltt_time_zero
;
1892 es
->s
= process
->state
->s
;
1893 process
->state
= es
;
1897 * return 1 when empty, else 0 */
1898 int lttv_state_pop_state_cleanup(LttvProcessState
*process
,
1899 LttvTracefileState
*tfs
)
1901 guint depth
= process
->execution_stack
->len
;
1907 process
->execution_stack
=
1908 g_array_set_size(process
->execution_stack
, depth
- 1);
1909 process
->state
= &g_array_index(process
->execution_stack
, LttvExecutionState
,
1911 process
->state
->change
= tfs
->parent
.timestamp
;
1916 static void pop_state(LttvTracefileState
*tfs
, LttvExecutionMode t
)
1918 guint cpu
= tfs
->cpu
;
1919 LttvTraceState
*ts
= (LttvTraceState
*)tfs
->parent
.t_context
;
1920 LttvProcessState
*process
= ts
->running_process
[cpu
];
1922 guint depth
= process
->execution_stack
->len
;
1924 if(process
->state
->t
!= t
){
1925 g_info("Different execution mode type (%lu.%09lu): ignore it\n",
1926 tfs
->parent
.timestamp
.tv_sec
, tfs
->parent
.timestamp
.tv_nsec
);
1927 g_info("process state has %s when pop_int is %s\n",
1928 g_quark_to_string(process
->state
->t
),
1929 g_quark_to_string(t
));
1930 g_info("{ %u, %u, %s, %s, %s }\n",
1933 g_quark_to_string(process
->name
),
1934 g_quark_to_string(process
->brand
),
1935 g_quark_to_string(process
->state
->s
));
1940 g_info("Trying to pop last state on stack (%lu.%09lu): ignore it\n",
1941 tfs
->parent
.timestamp
.tv_sec
, tfs
->parent
.timestamp
.tv_nsec
);
1945 process
->execution_stack
=
1946 g_array_set_size(process
->execution_stack
, depth
- 1);
1947 process
->state
= &g_array_index(process
->execution_stack
, LttvExecutionState
,
1949 process
->state
->change
= tfs
->parent
.timestamp
;
1952 struct search_result
{
1953 const LttTime
*time
; /* Requested time */
1954 LttTime
*best
; /* Best result */
1957 static gint
search_usertrace(gconstpointer a
, gconstpointer b
)
1959 const LttTime
*elem_time
= (const LttTime
*)a
;
1960 /* Explicit non const cast */
1961 struct search_result
*res
= (struct search_result
*)b
;
1963 if(ltt_time_compare(*elem_time
, *(res
->time
)) < 0) {
1964 /* The usertrace was created before the schedchange */
1965 /* Get larger keys */
1967 } else if(ltt_time_compare(*elem_time
, *(res
->time
)) >= 0) {
1968 /* The usertrace was created after the schedchange time */
1969 /* Get smaller keys */
1971 if(ltt_time_compare(*elem_time
, *res
->best
) < 0) {
1972 res
->best
= (LttTime
*)elem_time
;
1975 res
->best
= (LttTime
*)elem_time
;
1982 static LttvTracefileState
*ltt_state_usertrace_find(LttvTraceState
*tcs
,
1983 guint pid
, const LttTime
*timestamp
)
1985 LttvTracefileState
*tfs
= NULL
;
1986 struct search_result res
;
1987 /* Find the usertrace associated with a pid and time interval.
1988 * Search in the usertraces by PID (within a hash) and then, for each
1989 * corresponding element of the array, find the first one with creation
1990 * timestamp the lowest, but higher or equal to "timestamp". */
1991 res
.time
= timestamp
;
1993 GTree
*usertrace_tree
= g_hash_table_lookup(tcs
->usertraces
, (gpointer
)pid
);
1994 if(usertrace_tree
) {
1995 g_tree_search(usertrace_tree
, search_usertrace
, &res
);
1997 tfs
= g_tree_lookup(usertrace_tree
, res
.best
);
2005 lttv_state_create_process(LttvTraceState
*tcs
, LttvProcessState
*parent
,
2006 guint cpu
, guint pid
, guint tgid
, GQuark name
, const LttTime
*timestamp
)
2008 LttvProcessState
*process
= g_new(LttvProcessState
, 1);
2010 LttvExecutionState
*es
;
2015 process
->tgid
= tgid
;
2017 process
->name
= name
;
2018 process
->brand
= LTTV_STATE_UNBRANDED
;
2019 //process->last_cpu = tfs->cpu_name;
2020 //process->last_cpu_index = ltt_tracefile_num(((LttvTracefileContext*)tfs)->tf);
2021 process
->type
= LTTV_STATE_USER_THREAD
;
2022 process
->usertrace
= ltt_state_usertrace_find(tcs
, pid
, timestamp
);
2023 process
->current_function
= 0; //function 0x0 by default.
2025 g_info("Process %u, core %p", process
->pid
, process
);
2026 g_hash_table_insert(tcs
->processes
, process
, process
);
2029 process
->ppid
= parent
->pid
;
2030 process
->creation_time
= *timestamp
;
2033 /* No parent. This process exists but we are missing all information about
2034 its creation. The birth time is set to zero but we remember the time of
2039 process
->creation_time
= ltt_time_zero
;
2042 process
->insertion_time
= *timestamp
;
2043 sprintf(buffer
,"%d-%lu.%lu",pid
, process
->creation_time
.tv_sec
,
2044 process
->creation_time
.tv_nsec
);
2045 process
->pid_time
= g_quark_from_string(buffer
);
2047 //process->last_cpu = tfs->cpu_name;
2048 //process->last_cpu_index = ltt_tracefile_num(((LttvTracefileContext*)tfs)->tf);
2049 process
->execution_stack
= g_array_sized_new(FALSE
, FALSE
,
2050 sizeof(LttvExecutionState
), PREALLOCATED_EXECUTION_STACK
);
2051 process
->execution_stack
= g_array_set_size(process
->execution_stack
, 2);
2052 es
= process
->state
= &g_array_index(process
->execution_stack
,
2053 LttvExecutionState
, 0);
2054 es
->t
= LTTV_STATE_USER_MODE
;
2055 es
->n
= LTTV_STATE_SUBMODE_NONE
;
2056 es
->entry
= *timestamp
;
2057 //g_assert(timestamp->tv_sec != 0);
2058 es
->change
= *timestamp
;
2059 es
->cum_cpu_time
= ltt_time_zero
;
2060 es
->s
= LTTV_STATE_RUN
;
2062 es
= process
->state
= &g_array_index(process
->execution_stack
,
2063 LttvExecutionState
, 1);
2064 es
->t
= LTTV_STATE_SYSCALL
;
2065 es
->n
= LTTV_STATE_SUBMODE_NONE
;
2066 es
->entry
= *timestamp
;
2067 //g_assert(timestamp->tv_sec != 0);
2068 es
->change
= *timestamp
;
2069 es
->cum_cpu_time
= ltt_time_zero
;
2070 es
->s
= LTTV_STATE_WAIT_FORK
;
2072 /* Allocate an empty function call stack. If it's empty, use 0x0. */
2073 process
->user_stack
= g_array_sized_new(FALSE
, FALSE
,
2074 sizeof(guint64
), 0);
2079 LttvProcessState
*lttv_state_find_process(LttvTraceState
*ts
, guint cpu
,
2082 LttvProcessState key
;
2083 LttvProcessState
*process
;
2087 process
= g_hash_table_lookup(ts
->processes
, &key
);
2092 lttv_state_find_process_or_create(LttvTraceState
*ts
, guint cpu
, guint pid
,
2093 const LttTime
*timestamp
)
2095 LttvProcessState
*process
= lttv_state_find_process(ts
, cpu
, pid
);
2096 LttvExecutionState
*es
;
2098 /* Put ltt_time_zero creation time for unexisting processes */
2099 if(unlikely(process
== NULL
)) {
2100 process
= lttv_state_create_process(ts
,
2101 NULL
, cpu
, pid
, 0, LTTV_STATE_UNNAMED
, timestamp
);
2102 /* We are not sure is it's a kernel thread or normal thread, put the
2103 * bottom stack state to unknown */
2104 process
->execution_stack
=
2105 g_array_set_size(process
->execution_stack
, 1);
2106 process
->state
= es
=
2107 &g_array_index(process
->execution_stack
, LttvExecutionState
, 0);
2108 es
->t
= LTTV_STATE_MODE_UNKNOWN
;
2109 es
->s
= LTTV_STATE_UNNAMED
;
2114 /* FIXME : this function should be called when we receive an event telling that
2115 * release_task has been called in the kernel. In happens generally when
2116 * the parent waits for its child terminaison, but may also happen in special
2117 * cases in the child's exit : when the parent ignores its children SIGCCHLD or
2118 * has the flag SA_NOCLDWAIT. It can also happen when the child is part
2119 * of a killed thread ground, but isn't the leader.
2121 static void exit_process(LttvTracefileState
*tfs
, LttvProcessState
*process
)
2123 LttvTraceState
*ts
= LTTV_TRACE_STATE(tfs
->parent
.t_context
);
2124 LttvProcessState key
;
2126 key
.pid
= process
->pid
;
2127 key
.cpu
= process
->cpu
;
2128 g_hash_table_remove(ts
->processes
, &key
);
2129 g_array_free(process
->execution_stack
, TRUE
);
2130 g_array_free(process
->user_stack
, TRUE
);
2135 static void free_process_state(gpointer key
, gpointer value
,gpointer user_data
)
2137 g_array_free(((LttvProcessState
*)value
)->execution_stack
, TRUE
);
2138 g_array_free(((LttvProcessState
*)value
)->user_stack
, TRUE
);
2143 static void lttv_state_free_process_table(GHashTable
*processes
)
2145 g_hash_table_foreach(processes
, free_process_state
, NULL
);
2146 g_hash_table_destroy(processes
);
2150 static gboolean
syscall_entry(void *hook_data
, void *call_data
)
2152 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2154 LttvTraceState
*ts
= (LttvTraceState
*)s
->parent
.t_context
;
2155 LttvProcessState
*process
= ts
->running_process
[cpu
];
2156 LttEvent
*e
= ltt_tracefile_get_event(s
->parent
.tf
);
2157 LttvTraceHook
*th
= (LttvTraceHook
*)hook_data
;
2158 struct marker_field
*f
= lttv_trace_get_hook_field(th
, 0);
2160 LttvExecutionSubmode submode
;
2162 guint nb_syscalls
= ((LttvTraceState
*)(s
->parent
.t_context
))->nb_syscalls
;
2163 guint syscall
= ltt_event_get_unsigned(e
, f
);
2165 if(syscall
< nb_syscalls
) {
2166 submode
= ((LttvTraceState
*)(s
->parent
.t_context
))->syscall_names
[
2169 /* Fixup an incomplete syscall table */
2170 GString
*string
= g_string_new("");
2171 g_string_printf(string
, "syscall %u", syscall
);
2172 submode
= g_quark_from_string(string
->str
);
2173 g_string_free(string
, TRUE
);
2175 /* There can be no system call from PID 0 : unknown state */
2176 if(process
->pid
!= 0)
2177 push_state(s
, LTTV_STATE_SYSCALL
, submode
);
2182 static gboolean
syscall_exit(void *hook_data
, void *call_data
)
2184 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2186 LttvTraceState
*ts
= (LttvTraceState
*)s
->parent
.t_context
;
2187 LttvProcessState
*process
= ts
->running_process
[cpu
];
2189 /* There can be no system call from PID 0 : unknown state */
2190 if(process
->pid
!= 0)
2191 pop_state(s
, LTTV_STATE_SYSCALL
);
2196 static gboolean
trap_entry(void *hook_data
, void *call_data
)
2198 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2199 LttEvent
*e
= ltt_tracefile_get_event(s
->parent
.tf
);
2200 LttvTraceHook
*th
= (LttvTraceHook
*)hook_data
;
2201 struct marker_field
*f
= lttv_trace_get_hook_field(th
, 0);
2203 LttvExecutionSubmode submode
;
2205 guint64 nb_traps
= ((LttvTraceState
*)(s
->parent
.t_context
))->nb_traps
;
2206 guint64 trap
= ltt_event_get_long_unsigned(e
, f
);
2208 if(trap
< nb_traps
) {
2209 submode
= ((LttvTraceState
*)(s
->parent
.t_context
))->trap_names
[trap
];
2211 /* Fixup an incomplete trap table */
2212 GString
*string
= g_string_new("");
2213 g_string_printf(string
, "trap %llu", trap
);
2214 submode
= g_quark_from_string(string
->str
);
2215 g_string_free(string
, TRUE
);
2218 push_state(s
, LTTV_STATE_TRAP
, submode
);
2220 /* update cpu status */
2221 cpu_push_mode(s
->cpu_state
, LTTV_CPU_TRAP
);
2226 static gboolean
trap_exit(void *hook_data
, void *call_data
)
2228 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2230 pop_state(s
, LTTV_STATE_TRAP
);
2232 /* update cpu status */
2233 cpu_pop_mode(s
->cpu_state
);
2238 static gboolean
irq_entry(void *hook_data
, void *call_data
)
2240 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2241 LttvTraceState
*ts
= (LttvTraceState
*)s
->parent
.t_context
;
2242 LttEvent
*e
= ltt_tracefile_get_event(s
->parent
.tf
);
2243 //guint8 ev_id = ltt_event_eventtype_id(e);
2244 LttvTraceHook
*th
= (LttvTraceHook
*)hook_data
;
2245 struct marker_field
*f
= lttv_trace_get_hook_field(th
, 0);
2247 LttvExecutionSubmode submode
;
2248 guint64 irq
= ltt_event_get_long_unsigned(e
, f
);
2249 guint64 nb_irqs
= ((LttvTraceState
*)(s
->parent
.t_context
))->nb_irqs
;
2252 submode
= ((LttvTraceState
*)(s
->parent
.t_context
))->irq_names
[irq
];
2254 /* Fixup an incomplete irq table */
2255 GString
*string
= g_string_new("");
2256 g_string_printf(string
, "irq %llu", irq
);
2257 submode
= g_quark_from_string(string
->str
);
2258 g_string_free(string
, TRUE
);
2261 /* Do something with the info about being in user or system mode when int? */
2262 push_state(s
, LTTV_STATE_IRQ
, submode
);
2264 /* update cpu status */
2265 cpu_push_mode(s
->cpu_state
, LTTV_CPU_IRQ
);
2267 /* update irq status */
2268 s
->cpu_state
->last_irq
= irq
;
2269 irq_push_mode(&ts
->irq_states
[irq
], LTTV_IRQ_BUSY
);
2274 static gboolean
soft_irq_exit(void *hook_data
, void *call_data
)
2276 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2278 pop_state(s
, LTTV_STATE_SOFT_IRQ
);
2284 static gboolean
irq_exit(void *hook_data
, void *call_data
)
2286 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2287 LttvTraceState
*ts
= (LttvTraceState
*)s
->parent
.t_context
;
2289 pop_state(s
, LTTV_STATE_IRQ
);
2291 /* update cpu status */
2292 cpu_pop_mode(s
->cpu_state
);
2294 /* update irq status */
2295 irq_pop_mode(&ts
->irq_states
[s
->cpu_state
->last_irq
]);
2300 static gboolean
soft_irq_entry(void *hook_data
, void *call_data
)
2302 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2303 LttEvent
*e
= ltt_tracefile_get_event(s
->parent
.tf
);
2304 //guint8 ev_id = ltt_event_eventtype_id(e);
2305 LttvTraceHook
*th
= (LttvTraceHook
*)hook_data
;
2306 struct marker_field
*f
= lttv_trace_get_hook_field(th
, 0);
2308 LttvExecutionSubmode submode
;
2309 guint64 softirq
= ltt_event_get_long_unsigned(e
, f
);
2310 guint64 nb_softirqs
= ((LttvTraceState
*)(s
->parent
.t_context
))->nb_softirqs
;
2312 if(softirq
< nb_softirqs
) {
2313 submode
= ((LttvTraceState
*)(s
->parent
.t_context
))->soft_irq_names
[softirq
];
2315 /* Fixup an incomplete irq table */
2316 GString
*string
= g_string_new("");
2317 g_string_printf(string
, "softirq %llu", softirq
);
2318 submode
= g_quark_from_string(string
->str
);
2319 g_string_free(string
, TRUE
);
2322 /* Do something with the info about being in user or system mode when int? */
2323 push_state(s
, LTTV_STATE_SOFT_IRQ
, submode
);
2327 static gboolean
enum_interrupt(void *hook_data
, void *call_data
)
2329 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2330 LttvTraceState
*ts
= (LttvTraceState
*)s
->parent
.t_context
;
2331 LttEvent
*e
= ltt_tracefile_get_event(s
->parent
.tf
);
2332 //guint8 ev_id = ltt_event_eventtype_id(e);
2333 LttvTraceHook
*th
= (LttvTraceHook
*)hook_data
;
2335 GQuark action
= g_quark_from_string(ltt_event_get_string(e
,
2336 lttv_trace_get_hook_field(th
, 0)));
2337 guint irq
= ltt_event_get_long_unsigned(e
, lttv_trace_get_hook_field(th
, 1));
2339 ts
->irq_names
[irq
] = action
;
2345 static gboolean
bdev_request_issue(void *hook_data
, void *call_data
)
2347 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2348 LttvTraceState
*ts
= (LttvTraceState
*)s
->parent
.t_context
;
2349 LttEvent
*e
= ltt_tracefile_get_event(s
->parent
.tf
);
2350 //guint8 ev_id = ltt_event_eventtype_id(e);
2351 LttvTraceHook
*th
= (LttvTraceHook
*)hook_data
;
2353 guint major
= ltt_event_get_long_unsigned(e
,
2354 lttv_trace_get_hook_field(th
, 0));
2355 guint minor
= ltt_event_get_long_unsigned(e
,
2356 lttv_trace_get_hook_field(th
, 1));
2357 guint oper
= ltt_event_get_long_unsigned(e
,
2358 lttv_trace_get_hook_field(th
, 2));
2359 guint16 devcode
= MKDEV(major
,minor
);
2361 /* have we seen this block device before? */
2362 gpointer bdev
= get_hashed_bdevstate(ts
, devcode
);
2365 bdev_push_mode(bdev
, LTTV_BDEV_BUSY_READING
);
2367 bdev_push_mode(bdev
, LTTV_BDEV_BUSY_WRITING
);
2372 static gboolean
bdev_request_complete(void *hook_data
, void *call_data
)
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
;
2379 guint major
= ltt_event_get_long_unsigned(e
,
2380 lttv_trace_get_hook_field(th
, 0));
2381 guint minor
= ltt_event_get_long_unsigned(e
,
2382 lttv_trace_get_hook_field(th
, 1));
2383 //guint oper = ltt_event_get_long_unsigned(e,
2384 // lttv_trace_get_hook_field(th, 2));
2385 guint16 devcode
= MKDEV(major
,minor
);
2387 /* have we seen this block device before? */
2388 gpointer bdev
= get_hashed_bdevstate(ts
, devcode
);
2390 /* update block device */
2391 bdev_pop_mode(bdev
);
2396 static void push_function(LttvTracefileState
*tfs
, guint64 funcptr
)
2400 LttvTraceState
*ts
= (LttvTraceState
*)tfs
->parent
.t_context
;
2401 guint cpu
= tfs
->cpu
;
2402 LttvProcessState
*process
= ts
->running_process
[cpu
];
2404 guint depth
= process
->user_stack
->len
;
2406 process
->user_stack
=
2407 g_array_set_size(process
->user_stack
, depth
+ 1);
2409 new_func
= &g_array_index(process
->user_stack
, guint64
, depth
);
2410 *new_func
= funcptr
;
2411 process
->current_function
= funcptr
;
2414 static void pop_function(LttvTracefileState
*tfs
, guint64 funcptr
)
2416 guint cpu
= tfs
->cpu
;
2417 LttvTraceState
*ts
= (LttvTraceState
*)tfs
->parent
.t_context
;
2418 LttvProcessState
*process
= ts
->running_process
[cpu
];
2420 if(process
->current_function
!= funcptr
){
2421 g_info("Different functions (%lu.%09lu): ignore it\n",
2422 tfs
->parent
.timestamp
.tv_sec
, tfs
->parent
.timestamp
.tv_nsec
);
2423 g_info("process state has %llu when pop_function is %llu\n",
2424 process
->current_function
, funcptr
);
2425 g_info("{ %u, %u, %s, %s, %s }\n",
2428 g_quark_to_string(process
->name
),
2429 g_quark_to_string(process
->brand
),
2430 g_quark_to_string(process
->state
->s
));
2433 guint depth
= process
->user_stack
->len
;
2436 g_info("Trying to pop last function on stack (%lu.%09lu): ignore it\n",
2437 tfs
->parent
.timestamp
.tv_sec
, tfs
->parent
.timestamp
.tv_nsec
);
2441 process
->user_stack
=
2442 g_array_set_size(process
->user_stack
, depth
- 1);
2443 process
->current_function
=
2444 g_array_index(process
->user_stack
, guint64
, depth
- 2);
2448 static gboolean
function_entry(void *hook_data
, void *call_data
)
2450 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2451 LttEvent
*e
= ltt_tracefile_get_event(s
->parent
.tf
);
2452 //guint8 ev_id = ltt_event_eventtype_id(e);
2453 LttvTraceHook
*th
= (LttvTraceHook
*)hook_data
;
2454 struct marker_field
*f
= lttv_trace_get_hook_field(th
, 0);
2455 guint64 funcptr
= ltt_event_get_long_unsigned(e
, f
);
2457 push_function(s
, funcptr
);
2461 static gboolean
function_exit(void *hook_data
, void *call_data
)
2463 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2464 LttEvent
*e
= ltt_tracefile_get_event(s
->parent
.tf
);
2465 //guint8 ev_id = ltt_event_eventtype_id(e);
2466 LttvTraceHook
*th
= (LttvTraceHook
*)hook_data
;
2467 struct marker_field
*f
= lttv_trace_get_hook_field(th
, 0);
2468 guint64 funcptr
= ltt_event_get_long_unsigned(e
, f
);
2470 pop_function(s
, funcptr
);
2474 static gboolean
schedchange(void *hook_data
, void *call_data
)
2476 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2478 LttvTraceState
*ts
= (LttvTraceState
*)s
->parent
.t_context
;
2479 LttvProcessState
*process
= ts
->running_process
[cpu
];
2480 //LttvProcessState *old_process = ts->running_process[cpu];
2482 LttEvent
*e
= ltt_tracefile_get_event(s
->parent
.tf
);
2483 LttvTraceHook
*th
= (LttvTraceHook
*)hook_data
;
2484 guint pid_in
, pid_out
;
2487 pid_out
= ltt_event_get_unsigned(e
, lttv_trace_get_hook_field(th
, 0));
2488 pid_in
= ltt_event_get_unsigned(e
, lttv_trace_get_hook_field(th
, 1));
2489 state_out
= ltt_event_get_long_int(e
, lttv_trace_get_hook_field(th
, 2));
2491 if(likely(process
!= NULL
)) {
2493 /* We could not know but it was not the idle process executing.
2494 This should only happen at the beginning, before the first schedule
2495 event, and when the initial information (current process for each CPU)
2496 is missing. It is not obvious how we could, after the fact, compensate
2497 the wrongly attributed statistics. */
2499 //This test only makes sense once the state is known and if there is no
2500 //missing events. We need to silently ignore schedchange coming after a
2501 //process_free, or it causes glitches. (FIXME)
2502 //if(unlikely(process->pid != pid_out)) {
2503 // g_assert(process->pid == 0);
2505 if(process
->pid
== 0
2506 && process
->state
->t
== LTTV_STATE_MODE_UNKNOWN
) {
2508 /* Scheduling out of pid 0 at beginning of the trace :
2509 * we know for sure it is in syscall mode at this point. */
2510 g_assert(process
->execution_stack
->len
== 1);
2511 process
->state
->t
= LTTV_STATE_SYSCALL
;
2512 process
->state
->s
= LTTV_STATE_WAIT
;
2513 process
->state
->change
= s
->parent
.timestamp
;
2514 process
->state
->entry
= s
->parent
.timestamp
;
2517 if(unlikely(process
->state
->s
== LTTV_STATE_EXIT
)) {
2518 process
->state
->s
= LTTV_STATE_ZOMBIE
;
2519 process
->state
->change
= s
->parent
.timestamp
;
2521 if(unlikely(state_out
== 0)) process
->state
->s
= LTTV_STATE_WAIT_CPU
;
2522 else process
->state
->s
= LTTV_STATE_WAIT
;
2523 process
->state
->change
= s
->parent
.timestamp
;
2526 if(state_out
== 32 || state_out
== 128)
2527 exit_process(s
, process
); /* EXIT_DEAD || TASK_DEAD */
2528 /* see sched.h for states */
2531 process
= ts
->running_process
[cpu
] =
2532 lttv_state_find_process_or_create(
2533 (LttvTraceState
*)s
->parent
.t_context
,
2535 &s
->parent
.timestamp
);
2536 process
->state
->s
= LTTV_STATE_RUN
;
2538 if(process
->usertrace
)
2539 process
->usertrace
->cpu
= cpu
;
2540 // process->last_cpu_index = ltt_tracefile_num(((LttvTracefileContext*)s)->tf);
2541 process
->state
->change
= s
->parent
.timestamp
;
2543 /* update cpu status */
2545 cpu_set_base_mode(s
->cpu_state
, LTTV_CPU_IDLE
);
2547 cpu_set_base_mode(s
->cpu_state
, LTTV_CPU_BUSY
);
2552 static gboolean
process_fork(void *hook_data
, void *call_data
)
2554 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2555 LttEvent
*e
= ltt_tracefile_get_event(s
->parent
.tf
);
2556 LttvTraceHook
*th
= (LttvTraceHook
*)hook_data
;
2558 guint child_pid
; /* In the Linux Kernel, there is one PID per thread. */
2559 guint child_tgid
; /* tgid in the Linux kernel is the "real" POSIX PID. */
2560 //LttvProcessState *zombie_process;
2562 LttvTraceState
*ts
= (LttvTraceState
*)s
->parent
.t_context
;
2563 LttvProcessState
*process
= ts
->running_process
[cpu
];
2564 LttvProcessState
*child_process
;
2565 struct marker_field
*f
;
2568 parent_pid
= ltt_event_get_unsigned(e
, lttv_trace_get_hook_field(th
, 0));
2571 child_pid
= ltt_event_get_unsigned(e
, lttv_trace_get_hook_field(th
, 1));
2572 s
->parent
.target_pid
= child_pid
;
2575 f
= lttv_trace_get_hook_field(th
, 2);
2577 child_tgid
= ltt_event_get_unsigned(e
, f
);
2581 /* Mathieu : it seems like the process might have been scheduled in before the
2582 * fork, and, in a rare case, might be the current process. This might happen
2583 * in a SMP case where we don't have enough precision on the clocks.
2585 * Test reenabled after precision fixes on time. (Mathieu) */
2587 zombie_process
= lttv_state_find_process(ts
, ANY_CPU
, child_pid
);
2589 if(unlikely(zombie_process
!= NULL
)) {
2590 /* Reutilisation of PID. Only now we are sure that the old PID
2591 * has been released. FIXME : should know when release_task happens instead.
2593 guint num_cpus
= ltt_trace_get_num_cpu(ts
->parent
.t
);
2595 for(i
=0; i
< num_cpus
; i
++) {
2596 g_assert(zombie_process
!= ts
->running_process
[i
]);
2599 exit_process(s
, zombie_process
);
2602 g_assert(process
->pid
!= child_pid
);
2603 // FIXME : Add this test in the "known state" section
2604 // g_assert(process->pid == parent_pid);
2605 child_process
= lttv_state_find_process(ts
, ANY_CPU
, child_pid
);
2606 if(child_process
== NULL
) {
2607 child_process
= lttv_state_create_process(ts
, process
, cpu
,
2608 child_pid
, child_tgid
,
2609 LTTV_STATE_UNNAMED
, &s
->parent
.timestamp
);
2611 /* The process has already been created : due to time imprecision between
2612 * multiple CPUs : it has been scheduled in before creation. Note that we
2613 * shouldn't have this kind of imprecision.
2615 * Simply put a correct parent.
2617 g_assert(0); /* This is a problematic case : the process has been created
2618 before the fork event */
2619 child_process
->ppid
= process
->pid
;
2620 child_process
->tgid
= child_tgid
;
2622 g_assert(child_process
->name
== LTTV_STATE_UNNAMED
);
2623 child_process
->name
= process
->name
;
2624 child_process
->brand
= process
->brand
;
2629 /* We stamp a newly created process as kernel_thread.
2630 * The thread should not be running yet. */
2631 static gboolean
process_kernel_thread(void *hook_data
, void *call_data
)
2633 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2634 LttEvent
*e
= ltt_tracefile_get_event(s
->parent
.tf
);
2635 LttvTraceHook
*th
= (LttvTraceHook
*)hook_data
;
2637 LttvTraceState
*ts
= (LttvTraceState
*)s
->parent
.t_context
;
2638 LttvProcessState
*process
;
2639 LttvExecutionState
*es
;
2642 pid
= (guint
)ltt_event_get_long_unsigned(e
, lttv_trace_get_hook_field(th
, 0));
2643 s
->parent
.target_pid
= pid
;
2645 process
= lttv_state_find_process_or_create(ts
, ANY_CPU
, pid
,
2647 process
->execution_stack
=
2648 g_array_set_size(process
->execution_stack
, 1);
2649 es
= process
->state
=
2650 &g_array_index(process
->execution_stack
, LttvExecutionState
, 0);
2651 es
->t
= LTTV_STATE_SYSCALL
;
2652 process
->type
= LTTV_STATE_KERNEL_THREAD
;
2657 static gboolean
process_exit(void *hook_data
, void *call_data
)
2659 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2660 LttEvent
*e
= ltt_tracefile_get_event(s
->parent
.tf
);
2661 LttvTraceHook
*th
= (LttvTraceHook
*)hook_data
;
2663 LttvTraceState
*ts
= (LttvTraceState
*)s
->parent
.t_context
;
2664 LttvProcessState
*process
; // = ts->running_process[cpu];
2666 pid
= ltt_event_get_unsigned(e
, lttv_trace_get_hook_field(th
, 0));
2667 s
->parent
.target_pid
= pid
;
2669 // FIXME : Add this test in the "known state" section
2670 // g_assert(process->pid == pid);
2672 process
= lttv_state_find_process(ts
, ANY_CPU
, pid
);
2673 if(likely(process
!= NULL
)) {
2674 process
->state
->s
= LTTV_STATE_EXIT
;
2679 static gboolean
process_free(void *hook_data
, void *call_data
)
2681 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2682 LttvTraceState
*ts
= (LttvTraceState
*)s
->parent
.t_context
;
2683 LttEvent
*e
= ltt_tracefile_get_event(s
->parent
.tf
);
2684 LttvTraceHook
*th
= (LttvTraceHook
*)hook_data
;
2686 LttvProcessState
*process
;
2688 /* PID of the process to release */
2689 release_pid
= ltt_event_get_unsigned(e
, lttv_trace_get_hook_field(th
, 0));
2690 s
->parent
.target_pid
= release_pid
;
2692 g_assert(release_pid
!= 0);
2694 process
= lttv_state_find_process(ts
, ANY_CPU
, release_pid
);
2696 if(likely(process
!= NULL
)) {
2697 /* release_task is happening at kernel level : we can now safely release
2698 * the data structure of the process */
2699 //This test is fun, though, as it may happen that
2700 //at time t : CPU 0 : process_free
2701 //at time t+150ns : CPU 1 : schedule out
2702 //Clearly due to time imprecision, we disable it. (Mathieu)
2703 //If this weird case happen, we have no choice but to put the
2704 //Currently running process on the cpu to 0.
2705 //I re-enable it following time precision fixes. (Mathieu)
2706 //Well, in the case where an process is freed by a process on another CPU
2707 //and still scheduled, it happens that this is the schedchange that will
2708 //drop the last reference count. Do not free it here!
2709 guint num_cpus
= ltt_trace_get_num_cpu(ts
->parent
.t
);
2711 for(i
=0; i
< num_cpus
; i
++) {
2712 //g_assert(process != ts->running_process[i]);
2713 if(process
== ts
->running_process
[i
]) {
2714 //ts->running_process[i] = lttv_state_find_process(ts, i, 0);
2718 if(i
== num_cpus
) /* process is not scheduled */
2719 exit_process(s
, process
);
2726 static gboolean
process_exec(void *hook_data
, void *call_data
)
2728 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2729 LttvTraceState
*ts
= (LttvTraceState
*)s
->parent
.t_context
;
2730 LttEvent
*e
= ltt_tracefile_get_event(s
->parent
.tf
);
2731 LttvTraceHook
*th
= (LttvTraceHook
*)hook_data
;
2734 LttvProcessState
*process
= ts
->running_process
[cpu
];
2736 #if 0//how to use a sequence that must be transformed in a string
2737 /* PID of the process to release */
2738 guint64 name_len
= ltt_event_field_element_number(e
,
2739 lttv_trace_get_hook_field(th
, 0));
2740 //name = ltt_event_get_string(e, lttv_trace_get_hook_field(th, 0));
2741 LttField
*child
= ltt_event_field_element_select(e
,
2742 lttv_trace_get_hook_field(th
, 0), 0);
2744 (gchar
*)(ltt_event_data(e
)+ltt_event_field_offset(e
, child
));
2745 gchar
*null_term_name
= g_new(gchar
, name_len
+1);
2746 memcpy(null_term_name
, name_begin
, name_len
);
2747 null_term_name
[name_len
] = '\0';
2748 process
->name
= g_quark_from_string(null_term_name
);
2751 process
->name
= g_quark_from_string(ltt_event_get_string(e
,
2752 lttv_trace_get_hook_field(th
, 0)));
2753 process
->brand
= LTTV_STATE_UNBRANDED
;
2754 //g_free(null_term_name);
2758 static gboolean
thread_brand(void *hook_data
, void *call_data
)
2760 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2761 LttvTraceState
*ts
= (LttvTraceState
*)s
->parent
.t_context
;
2762 LttEvent
*e
= ltt_tracefile_get_event(s
->parent
.tf
);
2763 LttvTraceHook
*th
= (LttvTraceHook
*)hook_data
;
2766 LttvProcessState
*process
= ts
->running_process
[cpu
];
2768 name
= ltt_event_get_string(e
, lttv_trace_get_hook_field(th
, 0));
2769 process
->brand
= g_quark_from_string(name
);
2774 static void fix_process(gpointer key
, gpointer value
,
2777 LttvProcessState
*process
;
2778 LttvExecutionState
*es
;
2779 process
= (LttvProcessState
*)value
;
2780 LttTime
*timestamp
= (LttTime
*)user_data
;
2782 if(process
->type
== LTTV_STATE_KERNEL_THREAD
) {
2783 es
= &g_array_index(process
->execution_stack
, LttvExecutionState
, 0);
2784 if(es
->t
== LTTV_STATE_MODE_UNKNOWN
) {
2785 es
->t
= LTTV_STATE_SYSCALL
;
2786 es
->n
= LTTV_STATE_SUBMODE_NONE
;
2787 es
->entry
= *timestamp
;
2788 es
->change
= *timestamp
;
2789 es
->cum_cpu_time
= ltt_time_zero
;
2790 if(es
->s
== LTTV_STATE_UNNAMED
)
2791 es
->s
= LTTV_STATE_WAIT
;
2794 es
= &g_array_index(process
->execution_stack
, LttvExecutionState
, 0);
2795 if(es
->t
== LTTV_STATE_MODE_UNKNOWN
) {
2796 es
->t
= LTTV_STATE_USER_MODE
;
2797 es
->n
= LTTV_STATE_SUBMODE_NONE
;
2798 es
->entry
= *timestamp
;
2799 //g_assert(timestamp->tv_sec != 0);
2800 es
->change
= *timestamp
;
2801 es
->cum_cpu_time
= ltt_time_zero
;
2802 if(es
->s
== LTTV_STATE_UNNAMED
)
2803 es
->s
= LTTV_STATE_RUN
;
2805 if(process
->execution_stack
->len
== 1) {
2806 /* Still in bottom unknown mode, means never did a system call
2807 * May be either in user mode, syscall mode, running or waiting.*/
2808 /* FIXME : we may be tagging syscall mode when being user mode */
2809 process
->execution_stack
=
2810 g_array_set_size(process
->execution_stack
, 2);
2811 es
= process
->state
= &g_array_index(process
->execution_stack
,
2812 LttvExecutionState
, 1);
2813 es
->t
= LTTV_STATE_SYSCALL
;
2814 es
->n
= LTTV_STATE_SUBMODE_NONE
;
2815 es
->entry
= *timestamp
;
2816 //g_assert(timestamp->tv_sec != 0);
2817 es
->change
= *timestamp
;
2818 es
->cum_cpu_time
= ltt_time_zero
;
2819 if(es
->s
== LTTV_STATE_WAIT_FORK
)
2820 es
->s
= LTTV_STATE_WAIT
;
2826 static gboolean
statedump_end(void *hook_data
, void *call_data
)
2828 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2829 LttvTraceState
*ts
= (LttvTraceState
*)s
->parent
.t_context
;
2830 LttvTracefileContext
*tfc
= (LttvTracefileContext
*)call_data
;
2831 //LttEvent *e = ltt_tracefile_get_event(s->parent.tf);
2832 //LttvTraceHook *th = (LttvTraceHook *)hook_data;
2834 /* For all processes */
2835 /* if kernel thread, if stack[0] is unknown, set to syscall mode, wait */
2836 /* else, if stack[0] is unknown, set to user mode, running */
2838 g_hash_table_foreach(ts
->processes
, fix_process
, &tfc
->timestamp
);
2843 static gboolean
enum_process_state(void *hook_data
, void *call_data
)
2845 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2846 LttEvent
*e
= ltt_tracefile_get_event(s
->parent
.tf
);
2847 //It's slow : optimise later by doing this before reading trace.
2848 LttvTraceHook
*th
= (LttvTraceHook
*)hook_data
;
2854 LttvTraceState
*ts
= (LttvTraceState
*)s
->parent
.t_context
;
2855 LttvProcessState
*process
= ts
->running_process
[cpu
];
2856 LttvProcessState
*parent_process
;
2857 struct marker_field
*f
;
2858 GQuark type
, mode
, submode
, status
;
2859 LttvExecutionState
*es
;
2863 pid
= ltt_event_get_unsigned(e
, lttv_trace_get_hook_field(th
, 0));
2864 s
->parent
.target_pid
= pid
;
2867 parent_pid
= ltt_event_get_unsigned(e
, lttv_trace_get_hook_field(th
, 1));
2870 command
= ltt_event_get_string(e
, lttv_trace_get_hook_field(th
, 2));
2873 f
= lttv_trace_get_hook_field(th
, 3);
2874 type
= ltt_enum_string_get(f
, ltt_event_get_unsigned(e
, f
));
2876 //FIXME: type is rarely used, enum must match possible types.
2879 f
= lttv_trace_get_hook_field(th
, 4);
2880 mode
= ltt_enum_string_get(f
,ltt_event_get_unsigned(e
, f
));
2883 f
= lttv_trace_get_hook_field(th
, 5);
2884 submode
= ltt_enum_string_get(f
, ltt_event_get_unsigned(e
, f
));
2887 f
= lttv_trace_get_hook_field(th
, 6);
2888 status
= ltt_enum_string_get(f
, ltt_event_get_unsigned(e
, f
));
2891 f
= lttv_trace_get_hook_field(th
, 7);
2893 tgid
= ltt_event_get_unsigned(e
, f
);
2898 nb_cpus
= ltt_trace_get_num_cpu(ts
->parent
.t
);
2899 for(i
=0; i
<nb_cpus
; i
++) {
2900 process
= lttv_state_find_process(ts
, i
, pid
);
2901 g_assert(process
!= NULL
);
2903 process
->ppid
= parent_pid
;
2904 process
->tgid
= tgid
;
2905 process
->name
= g_quark_from_string(command
);
2907 &g_array_index(process
->execution_stack
, LttvExecutionState
, 0);
2908 process
->type
= LTTV_STATE_KERNEL_THREAD
;
2912 /* The process might exist if a process was forked while performing the
2914 process
= lttv_state_find_process(ts
, ANY_CPU
, pid
);
2915 if(process
== NULL
) {
2916 parent_process
= lttv_state_find_process(ts
, ANY_CPU
, parent_pid
);
2917 process
= lttv_state_create_process(ts
, parent_process
, cpu
,
2918 pid
, tgid
, g_quark_from_string(command
),
2919 &s
->parent
.timestamp
);
2921 /* Keep the stack bottom : a running user mode */
2922 /* Disabled because of inconsistencies in the current statedump states. */
2923 if(type
== LTTV_STATE_KERNEL_THREAD
) {
2924 /* Only keep the bottom
2925 * FIXME Kernel thread : can be in syscall or interrupt or trap. */
2926 /* Will cause expected trap when in fact being syscall (even after end of
2928 * Will cause expected interrupt when being syscall. (only before end of
2929 * statedump event) */
2930 // This will cause a "popping last state on stack, ignoring it."
2931 process
->execution_stack
= g_array_set_size(process
->execution_stack
, 1);
2932 es
= process
->state
= &g_array_index(process
->execution_stack
,
2933 LttvExecutionState
, 0);
2934 process
->type
= LTTV_STATE_KERNEL_THREAD
;
2935 es
->t
= LTTV_STATE_MODE_UNKNOWN
;
2936 es
->s
= LTTV_STATE_UNNAMED
;
2937 es
->n
= LTTV_STATE_SUBMODE_UNKNOWN
;
2939 es
->t
= LTTV_STATE_SYSCALL
;
2944 /* User space process :
2945 * bottom : user mode
2946 * either currently running or scheduled out.
2947 * can be scheduled out because interrupted in (user mode or in syscall)
2948 * or because of an explicit call to the scheduler in syscall. Note that
2949 * the scheduler call comes after the irq_exit, so never in interrupt
2951 // temp workaround : set size to 1 : only have user mode bottom of stack.
2952 // will cause g_info message of expected syscall mode when in fact being
2953 // in user mode. Can also cause expected trap when in fact being user
2954 // mode in the event of a page fault reenabling interrupts in the handler.
2955 // Expected syscall and trap can also happen after the end of statedump
2956 // This will cause a "popping last state on stack, ignoring it."
2957 process
->execution_stack
= g_array_set_size(process
->execution_stack
, 1);
2958 es
= process
->state
= &g_array_index(process
->execution_stack
,
2959 LttvExecutionState
, 0);
2960 es
->t
= LTTV_STATE_MODE_UNKNOWN
;
2961 es
->s
= LTTV_STATE_UNNAMED
;
2962 es
->n
= LTTV_STATE_SUBMODE_UNKNOWN
;
2964 es
->t
= LTTV_STATE_USER_MODE
;
2972 es
= process
->state
= &g_array_index(process
->execution_stack
,
2973 LttvExecutionState
, 1);
2974 es
->t
= LTTV_STATE_MODE_UNKNOWN
;
2975 es
->s
= LTTV_STATE_UNNAMED
;
2976 es
->n
= LTTV_STATE_SUBMODE_UNKNOWN
;
2980 /* The process has already been created :
2981 * Probably was forked while dumping the process state or
2982 * was simply scheduled in prior to get the state dump event.
2984 process
->ppid
= parent_pid
;
2985 process
->tgid
= tgid
;
2986 process
->name
= g_quark_from_string(command
);
2987 process
->type
= type
;
2989 &g_array_index(process
->execution_stack
, LttvExecutionState
, 0);
2991 if(es
->t
== LTTV_STATE_MODE_UNKNOWN
) {
2992 if(type
== LTTV_STATE_KERNEL_THREAD
)
2993 es
->t
= LTTV_STATE_SYSCALL
;
2995 es
->t
= LTTV_STATE_USER_MODE
;
2998 /* Don't mess around with the stack, it will eventually become
2999 * ok after the end of state dump. */
3006 gint
lttv_state_hook_add_event_hooks(void *hook_data
, void *call_data
)
3008 LttvTracesetState
*tss
= (LttvTracesetState
*)(call_data
);
3010 lttv_state_add_event_hooks(tss
);
3015 void lttv_state_add_event_hooks(LttvTracesetState
*self
)
3017 LttvTraceset
*traceset
= self
->parent
.ts
;
3019 guint i
, j
, k
, nb_trace
, nb_tracefile
;
3023 LttvTracefileState
*tfs
;
3029 LttvAttributeValue val
;
3031 nb_trace
= lttv_traceset_number(traceset
);
3032 for(i
= 0 ; i
< nb_trace
; i
++) {
3033 ts
= (LttvTraceState
*)self
->parent
.traces
[i
];
3035 /* Find the eventtype id for the following events and register the
3036 associated by id hooks. */
3038 hooks
= g_array_sized_new(FALSE
, FALSE
, sizeof(LttvTraceHook
), 19);
3039 //hooks = g_array_set_size(hooks, 19); // Max possible number of hooks.
3042 lttv_trace_find_hook(ts
->parent
.t
,
3043 LTT_FACILITY_KERNEL_ARCH
,
3044 LTT_EVENT_SYSCALL_ENTRY
,
3045 FIELD_ARRAY(LTT_FIELD_SYSCALL_ID
),
3046 syscall_entry
, NULL
, &hooks
);
3048 lttv_trace_find_hook(ts
->parent
.t
,
3049 LTT_FACILITY_KERNEL_ARCH
,
3050 LTT_EVENT_SYSCALL_EXIT
,
3052 syscall_exit
, NULL
, &hooks
);
3054 lttv_trace_find_hook(ts
->parent
.t
,
3055 LTT_FACILITY_KERNEL_ARCH
,
3056 LTT_EVENT_TRAP_ENTRY
,
3057 FIELD_ARRAY(LTT_FIELD_TRAP_ID
),
3058 trap_entry
, NULL
, &hooks
);
3060 lttv_trace_find_hook(ts
->parent
.t
,
3061 LTT_FACILITY_KERNEL_ARCH
,
3062 LTT_EVENT_TRAP_EXIT
,
3064 trap_exit
, NULL
, &hooks
);
3066 lttv_trace_find_hook(ts
->parent
.t
,
3067 LTT_FACILITY_KERNEL
,
3068 LTT_EVENT_IRQ_ENTRY
,
3069 FIELD_ARRAY(LTT_FIELD_IRQ_ID
),
3070 irq_entry
, NULL
, &hooks
);
3072 lttv_trace_find_hook(ts
->parent
.t
,
3073 LTT_FACILITY_KERNEL
,
3076 irq_exit
, NULL
, &hooks
);
3078 lttv_trace_find_hook(ts
->parent
.t
,
3079 LTT_FACILITY_KERNEL
,
3080 LTT_EVENT_SOFT_IRQ_ENTRY
,
3081 FIELD_ARRAY(LTT_FIELD_SOFT_IRQ_ID
),
3082 soft_irq_entry
, NULL
, &hooks
);
3084 lttv_trace_find_hook(ts
->parent
.t
,
3085 LTT_FACILITY_KERNEL
,
3086 LTT_EVENT_SOFT_IRQ_EXIT
,
3088 soft_irq_exit
, NULL
, &hooks
);
3090 lttv_trace_find_hook(ts
->parent
.t
,
3091 LTT_FACILITY_KERNEL
,
3092 LTT_EVENT_SCHED_SCHEDULE
,
3093 FIELD_ARRAY(LTT_FIELD_PREV_PID
, LTT_FIELD_NEXT_PID
,
3094 LTT_FIELD_PREV_STATE
),
3095 schedchange
, NULL
, &hooks
);
3097 lttv_trace_find_hook(ts
->parent
.t
,
3098 LTT_FACILITY_KERNEL
,
3099 LTT_EVENT_PROCESS_FORK
,
3100 FIELD_ARRAY(LTT_FIELD_PARENT_PID
, LTT_FIELD_CHILD_PID
,
3101 LTT_FIELD_CHILD_TGID
),
3102 process_fork
, NULL
, &hooks
);
3104 lttv_trace_find_hook(ts
->parent
.t
,
3105 LTT_FACILITY_KERNEL_ARCH
,
3106 LTT_EVENT_KTHREAD_CREATE
,
3107 FIELD_ARRAY(LTT_FIELD_PID
),
3108 process_kernel_thread
, NULL
, &hooks
);
3110 lttv_trace_find_hook(ts
->parent
.t
,
3111 LTT_FACILITY_KERNEL
,
3112 LTT_EVENT_PROCESS_EXIT
,
3113 FIELD_ARRAY(LTT_FIELD_PID
),
3114 process_exit
, NULL
, &hooks
);
3116 lttv_trace_find_hook(ts
->parent
.t
,
3117 LTT_FACILITY_KERNEL
,
3118 LTT_EVENT_PROCESS_FREE
,
3119 FIELD_ARRAY(LTT_FIELD_PID
),
3120 process_free
, NULL
, &hooks
);
3122 lttv_trace_find_hook(ts
->parent
.t
,
3125 FIELD_ARRAY(LTT_FIELD_FILENAME
),
3126 process_exec
, NULL
, &hooks
);
3128 lttv_trace_find_hook(ts
->parent
.t
,
3129 LTT_FACILITY_USER_GENERIC
,
3130 LTT_EVENT_THREAD_BRAND
,
3131 FIELD_ARRAY(LTT_FIELD_NAME
),
3132 thread_brand
, NULL
, &hooks
);
3134 /* statedump-related hooks */
3135 lttv_trace_find_hook(ts
->parent
.t
,
3137 LTT_EVENT_PROCESS_STATE
,
3138 FIELD_ARRAY(LTT_FIELD_PID
, LTT_FIELD_PARENT_PID
, LTT_FIELD_NAME
,
3139 LTT_FIELD_TYPE
, LTT_FIELD_MODE
, LTT_FIELD_SUBMODE
,
3140 LTT_FIELD_STATUS
, LTT_FIELD_TGID
),
3141 enum_process_state
, NULL
, &hooks
);
3143 lttv_trace_find_hook(ts
->parent
.t
,
3145 LTT_EVENT_STATEDUMP_END
,
3147 statedump_end
, NULL
, &hooks
);
3149 lttv_trace_find_hook(ts
->parent
.t
,
3151 LTT_EVENT_LIST_INTERRUPT
,
3152 FIELD_ARRAY(LTT_FIELD_ACTION
, LTT_FIELD_IRQ_ID
),
3153 enum_interrupt
, NULL
, &hooks
);
3155 lttv_trace_find_hook(ts
->parent
.t
,
3157 LTT_EVENT_REQUEST_ISSUE
,
3158 FIELD_ARRAY(LTT_FIELD_MAJOR
, LTT_FIELD_MINOR
, LTT_FIELD_OPERATION
),
3159 bdev_request_issue
, NULL
, &hooks
);
3161 lttv_trace_find_hook(ts
->parent
.t
,
3163 LTT_EVENT_REQUEST_COMPLETE
,
3164 FIELD_ARRAY(LTT_FIELD_MAJOR
, LTT_FIELD_MINOR
, LTT_FIELD_OPERATION
),
3165 bdev_request_complete
, NULL
, &hooks
);
3167 lttv_trace_find_hook(ts
->parent
.t
,
3168 LTT_FACILITY_USER_GENERIC
,
3169 LTT_EVENT_FUNCTION_ENTRY
,
3170 FIELD_ARRAY(LTT_FIELD_THIS_FN
, LTT_FIELD_CALL_SITE
),
3171 function_entry
, NULL
, &hooks
);
3173 lttv_trace_find_hook(ts
->parent
.t
,
3174 LTT_FACILITY_USER_GENERIC
,
3175 LTT_EVENT_FUNCTION_EXIT
,
3176 FIELD_ARRAY(LTT_FIELD_THIS_FN
, LTT_FIELD_CALL_SITE
),
3177 function_exit
, NULL
, &hooks
);
3179 /* Add these hooks to each event_by_id hooks list */
3181 nb_tracefile
= ts
->parent
.tracefiles
->len
;
3183 for(j
= 0 ; j
< nb_tracefile
; j
++) {
3185 LTTV_TRACEFILE_STATE(g_array_index(ts
->parent
.tracefiles
,
3186 LttvTracefileContext
*, j
));
3188 for(k
= 0 ; k
< hooks
->len
; k
++) {
3189 th
= &g_array_index(hooks
, LttvTraceHook
, k
);
3191 lttv_hooks_by_id_find(tfs
->parent
.event_by_id
, th
->id
),
3197 lttv_attribute_find(ts
->parent
.a
, LTTV_STATE_HOOKS
, LTTV_POINTER
, &val
);
3198 *(val
.v_pointer
) = hooks
;
3202 gint
lttv_state_hook_remove_event_hooks(void *hook_data
, void *call_data
)
3204 LttvTracesetState
*tss
= (LttvTracesetState
*)(call_data
);
3206 lttv_state_remove_event_hooks(tss
);
3211 void lttv_state_remove_event_hooks(LttvTracesetState
*self
)
3213 LttvTraceset
*traceset
= self
->parent
.ts
;
3215 guint i
, j
, k
, nb_trace
, nb_tracefile
;
3219 LttvTracefileState
*tfs
;
3225 LttvAttributeValue val
;
3227 nb_trace
= lttv_traceset_number(traceset
);
3228 for(i
= 0 ; i
< nb_trace
; i
++) {
3229 ts
= LTTV_TRACE_STATE(self
->parent
.traces
[i
]);
3231 lttv_attribute_find(ts
->parent
.a
, LTTV_STATE_HOOKS
, LTTV_POINTER
, &val
);
3232 hooks
= *(val
.v_pointer
);
3234 /* Remove these hooks from each event_by_id hooks list */
3236 nb_tracefile
= ts
->parent
.tracefiles
->len
;
3238 for(j
= 0 ; j
< nb_tracefile
; j
++) {
3240 LTTV_TRACEFILE_STATE(g_array_index(ts
->parent
.tracefiles
,
3241 LttvTracefileContext
*, j
));
3243 for(k
= 0 ; k
< hooks
->len
; k
++) {
3244 th
= &g_array_index(hooks
, LttvTraceHook
, k
);
3245 lttv_hooks_remove_data(
3246 lttv_hooks_by_id_find(tfs
->parent
.event_by_id
, th
->id
),
3251 lttv_trace_hook_remove_all(&hooks
);
3252 g_array_free(hooks
, TRUE
);
3256 static gboolean
state_save_event_hook(void *hook_data
, void *call_data
)
3258 guint
*event_count
= (guint
*)hook_data
;
3260 /* Only save at LTTV_STATE_SAVE_INTERVAL */
3261 if(likely((*event_count
)++ < LTTV_STATE_SAVE_INTERVAL
))
3266 LttvTracefileState
*self
= (LttvTracefileState
*)call_data
;
3268 LttvTraceState
*tcs
= (LttvTraceState
*)(self
->parent
.t_context
);
3270 LttvAttribute
*saved_states_tree
, *saved_state_tree
;
3272 LttvAttributeValue value
;
3274 saved_states_tree
= lttv_attribute_find_subdir(tcs
->parent
.t_a
,
3275 LTTV_STATE_SAVED_STATES
);
3276 saved_state_tree
= g_object_new(LTTV_ATTRIBUTE_TYPE
, NULL
);
3277 value
= lttv_attribute_add(saved_states_tree
,
3278 lttv_attribute_get_number(saved_states_tree
), LTTV_GOBJECT
);
3279 *(value
.v_gobject
) = (GObject
*)saved_state_tree
;
3280 value
= lttv_attribute_add(saved_state_tree
, LTTV_STATE_TIME
, LTTV_TIME
);
3281 *(value
.v_time
) = self
->parent
.timestamp
;
3282 lttv_state_save(tcs
, saved_state_tree
);
3283 g_debug("Saving state at time %lu.%lu", self
->parent
.timestamp
.tv_sec
,
3284 self
->parent
.timestamp
.tv_nsec
);
3286 *(tcs
->max_time_state_recomputed_in_seek
) = self
->parent
.timestamp
;
3291 static gboolean
state_save_after_trace_hook(void *hook_data
, void *call_data
)
3293 LttvTraceState
*tcs
= (LttvTraceState
*)(call_data
);
3295 *(tcs
->max_time_state_recomputed_in_seek
) = tcs
->parent
.time_span
.end_time
;
3300 guint
lttv_state_current_cpu(LttvTracefileState
*tfs
)
3308 static gboolean
block_start(void *hook_data
, void *call_data
)
3310 LttvTracefileState
*self
= (LttvTracefileState
*)call_data
;
3312 LttvTracefileState
*tfcs
;
3314 LttvTraceState
*tcs
= (LttvTraceState
*)(self
->parent
.t_context
);
3316 LttEventPosition
*ep
;
3318 guint i
, nb_block
, nb_event
, nb_tracefile
;
3322 LttvAttribute
*saved_states_tree
, *saved_state_tree
;
3324 LttvAttributeValue value
;
3326 ep
= ltt_event_position_new();
3328 nb_tracefile
= tcs
->parent
.tracefiles
->len
;
3330 /* Count the number of events added since the last block end in any
3333 for(i
= 0 ; i
< nb_tracefile
; i
++) {
3335 LTTV_TRACEFILE_STATE(&g_array_index(tcs
->parent
.tracefiles
,
3336 LttvTracefileContext
, i
));
3337 ltt_event_position(tfcs
->parent
.e
, ep
);
3338 ltt_event_position_get(ep
, &nb_block
, &nb_event
, &tf
);
3339 tcs
->nb_event
+= nb_event
- tfcs
->saved_position
;
3340 tfcs
->saved_position
= nb_event
;
3344 if(tcs
->nb_event
>= tcs
->save_interval
) {
3345 saved_states_tree
= lttv_attribute_find_subdir(tcs
->parent
.t_a
,
3346 LTTV_STATE_SAVED_STATES
);
3347 saved_state_tree
= g_object_new(LTTV_ATTRIBUTE_TYPE
, NULL
);
3348 value
= lttv_attribute_add(saved_states_tree
,
3349 lttv_attribute_get_number(saved_states_tree
), LTTV_GOBJECT
);
3350 *(value
.v_gobject
) = (GObject
*)saved_state_tree
;
3351 value
= lttv_attribute_add(saved_state_tree
, LTTV_STATE_TIME
, LTTV_TIME
);
3352 *(value
.v_time
) = self
->parent
.timestamp
;
3353 lttv_state_save(tcs
, saved_state_tree
);
3355 g_debug("Saving state at time %lu.%lu", self
->parent
.timestamp
.tv_sec
,
3356 self
->parent
.timestamp
.tv_nsec
);
3358 *(tcs
->max_time_state_recomputed_in_seek
) = self
->parent
.timestamp
;
3364 static gboolean
block_end(void *hook_data
, void *call_data
)
3366 LttvTracefileState
*self
= (LttvTracefileState
*)call_data
;
3368 LttvTraceState
*tcs
= (LttvTraceState
*)(self
->parent
.t_context
);
3372 LttEventPosition
*ep
;
3374 guint nb_block
, nb_event
;
3376 ep
= ltt_event_position_new();
3377 ltt_event_position(self
->parent
.e
, ep
);
3378 ltt_event_position_get(ep
, &nb_block
, &nb_event
, &tf
);
3379 tcs
->nb_event
+= nb_event
- self
->saved_position
+ 1;
3380 self
->saved_position
= 0;
3381 *(tcs
->max_time_state_recomputed_in_seek
) = self
->parent
.timestamp
;
3388 void lttv_state_save_add_event_hooks(LttvTracesetState
*self
)
3390 LttvTraceset
*traceset
= self
->parent
.ts
;
3392 guint i
, j
, nb_trace
, nb_tracefile
;
3396 LttvTracefileState
*tfs
;
3398 LttvTraceHook hook_start
, hook_end
;
3400 nb_trace
= lttv_traceset_number(traceset
);
3401 for(i
= 0 ; i
< nb_trace
; i
++) {
3402 ts
= (LttvTraceState
*)self
->parent
.traces
[i
];
3404 lttv_trace_find_hook(ts
->parent
.t
, "core","block_start",NULL
,
3405 NULL
, NULL
, block_start
, &hook_start
);
3406 lttv_trace_find_hook(ts
->parent
.t
, "core","block_end",NULL
,
3407 NULL
, NULL
, block_end
, &hook_end
);
3409 nb_tracefile
= ts
->parent
.tracefiles
->len
;
3411 for(j
= 0 ; j
< nb_tracefile
; j
++) {
3413 LTTV_TRACEFILE_STATE(&g_array_index(ts
->parent
.tracefiles
,
3414 LttvTracefileContext
, j
));
3415 lttv_hooks_add(lttv_hooks_by_id_find(tfs
->parent
.event_by_id
,
3416 hook_start
.id
), hook_start
.h
, NULL
, LTTV_PRIO_STATE
);
3417 lttv_hooks_add(lttv_hooks_by_id_find(tfs
->parent
.event_by_id
,
3418 hook_end
.id
), hook_end
.h
, NULL
, LTTV_PRIO_STATE
);
3424 void lttv_state_save_add_event_hooks(LttvTracesetState
*self
)
3426 LttvTraceset
*traceset
= self
->parent
.ts
;
3428 guint i
, j
, nb_trace
, nb_tracefile
;
3432 LttvTracefileState
*tfs
;
3435 nb_trace
= lttv_traceset_number(traceset
);
3436 for(i
= 0 ; i
< nb_trace
; i
++) {
3438 ts
= (LttvTraceState
*)self
->parent
.traces
[i
];
3439 nb_tracefile
= ts
->parent
.tracefiles
->len
;
3441 if(ts
->has_precomputed_states
) continue;
3443 guint
*event_count
= g_new(guint
, 1);
3446 for(j
= 0 ; j
< nb_tracefile
; j
++) {
3448 LTTV_TRACEFILE_STATE(g_array_index(ts
->parent
.tracefiles
,
3449 LttvTracefileContext
*, j
));
3450 lttv_hooks_add(tfs
->parent
.event
,
3451 state_save_event_hook
,
3458 lttv_process_traceset_begin(&self
->parent
,
3459 NULL
, NULL
, NULL
, NULL
, NULL
);
3463 gint
lttv_state_save_hook_add_event_hooks(void *hook_data
, void *call_data
)
3465 LttvTracesetState
*tss
= (LttvTracesetState
*)(call_data
);
3467 lttv_state_save_add_event_hooks(tss
);
3474 void lttv_state_save_remove_event_hooks(LttvTracesetState
*self
)
3476 LttvTraceset
*traceset
= self
->parent
.ts
;
3478 guint i
, j
, nb_trace
, nb_tracefile
;
3482 LttvTracefileState
*tfs
;
3484 LttvTraceHook hook_start
, hook_end
;
3486 nb_trace
= lttv_traceset_number(traceset
);
3487 for(i
= 0 ; i
< nb_trace
; i
++) {
3488 ts
= LTTV_TRACE_STATE(self
->parent
.traces
[i
]);
3490 lttv_trace_find_hook(ts
->parent
.t
, "core","block_start",NULL
,
3491 NULL
, NULL
, block_start
, &hook_start
);
3493 lttv_trace_find_hook(ts
->parent
.t
, "core","block_end",NULL
,
3494 NULL
, NULL
, block_end
, &hook_end
);
3496 nb_tracefile
= ts
->parent
.tracefiles
->len
;
3498 for(j
= 0 ; j
< nb_tracefile
; j
++) {
3500 LTTV_TRACEFILE_STATE(&g_array_index(ts
->parent
.tracefiles
,
3501 LttvTracefileContext
, j
));
3502 lttv_hooks_remove_data(lttv_hooks_by_id_find(
3503 tfs
->parent
.event_by_id
, hook_start
.id
), hook_start
.h
, NULL
);
3504 lttv_hooks_remove_data(lttv_hooks_by_id_find(
3505 tfs
->parent
.event_by_id
, hook_end
.id
), hook_end
.h
, NULL
);
3511 void lttv_state_save_remove_event_hooks(LttvTracesetState
*self
)
3513 LttvTraceset
*traceset
= self
->parent
.ts
;
3515 guint i
, j
, nb_trace
, nb_tracefile
;
3519 LttvTracefileState
*tfs
;
3521 LttvHooks
*after_trace
= lttv_hooks_new();
3523 lttv_hooks_add(after_trace
,
3524 state_save_after_trace_hook
,
3529 lttv_process_traceset_end(&self
->parent
,
3530 NULL
, after_trace
, NULL
, NULL
, NULL
);
3532 lttv_hooks_destroy(after_trace
);
3534 nb_trace
= lttv_traceset_number(traceset
);
3535 for(i
= 0 ; i
< nb_trace
; i
++) {
3537 ts
= (LttvTraceState
*)self
->parent
.traces
[i
];
3538 nb_tracefile
= ts
->parent
.tracefiles
->len
;
3540 if(ts
->has_precomputed_states
) continue;
3542 guint
*event_count
= NULL
;
3544 for(j
= 0 ; j
< nb_tracefile
; j
++) {
3546 LTTV_TRACEFILE_STATE(g_array_index(ts
->parent
.tracefiles
,
3547 LttvTracefileContext
*, j
));
3548 event_count
= lttv_hooks_remove(tfs
->parent
.event
,
3549 state_save_event_hook
);
3551 if(event_count
) g_free(event_count
);
3555 gint
lttv_state_save_hook_remove_event_hooks(void *hook_data
, void *call_data
)
3557 LttvTracesetState
*tss
= (LttvTracesetState
*)(call_data
);
3559 lttv_state_save_remove_event_hooks(tss
);
3564 void lttv_state_traceset_seek_time_closest(LttvTracesetState
*self
, LttTime t
)
3566 LttvTraceset
*traceset
= self
->parent
.ts
;
3570 int min_pos
, mid_pos
, max_pos
;
3572 guint call_rest
= 0;
3574 LttvTraceState
*tcs
;
3576 LttvAttributeValue value
;
3578 LttvAttributeType type
;
3580 LttvAttributeName name
;
3584 LttvAttribute
*saved_states_tree
, *saved_state_tree
, *closest_tree
;
3586 //g_tree_destroy(self->parent.pqueue);
3587 //self->parent.pqueue = g_tree_new(compare_tracefile);
3589 g_info("Entering seek_time_closest for time %lu.%lu", t
.tv_sec
, t
.tv_nsec
);
3591 nb_trace
= lttv_traceset_number(traceset
);
3592 for(i
= 0 ; i
< nb_trace
; i
++) {
3593 tcs
= (LttvTraceState
*)self
->parent
.traces
[i
];
3595 if(ltt_time_compare(t
, *(tcs
->max_time_state_recomputed_in_seek
)) < 0) {
3596 saved_states_tree
= lttv_attribute_find_subdir(tcs
->parent
.t_a
,
3597 LTTV_STATE_SAVED_STATES
);
3600 if(saved_states_tree
) {
3601 max_pos
= lttv_attribute_get_number(saved_states_tree
) - 1;
3602 mid_pos
= max_pos
/ 2;
3603 while(min_pos
< max_pos
) {
3604 type
= lttv_attribute_get(saved_states_tree
, mid_pos
, &name
, &value
,
3606 g_assert(type
== LTTV_GOBJECT
);
3607 saved_state_tree
= *((LttvAttribute
**)(value
.v_gobject
));
3608 type
= lttv_attribute_get_by_name(saved_state_tree
, LTTV_STATE_TIME
,
3610 g_assert(type
== LTTV_TIME
);
3611 if(ltt_time_compare(*(value
.v_time
), t
) < 0) {
3613 closest_tree
= saved_state_tree
;
3615 else max_pos
= mid_pos
- 1;
3617 mid_pos
= (min_pos
+ max_pos
+ 1) / 2;
3621 /* restore the closest earlier saved state */
3623 lttv_state_restore(tcs
, closest_tree
);
3627 /* There is no saved state, yet we want to have it. Restart at T0 */
3629 restore_init_state(tcs
);
3630 lttv_process_trace_seek_time(&(tcs
->parent
), ltt_time_zero
);
3633 /* We want to seek quickly without restoring/updating the state */
3635 restore_init_state(tcs
);
3636 lttv_process_trace_seek_time(&(tcs
->parent
), t
);
3639 if(!call_rest
) g_info("NOT Calling restore");
3644 traceset_state_instance_init (GTypeInstance
*instance
, gpointer g_class
)
3650 traceset_state_finalize (LttvTracesetState
*self
)
3652 G_OBJECT_CLASS(g_type_class_peek(LTTV_TRACESET_CONTEXT_TYPE
))->
3653 finalize(G_OBJECT(self
));
3658 traceset_state_class_init (LttvTracesetContextClass
*klass
)
3660 GObjectClass
*gobject_class
= G_OBJECT_CLASS(klass
);
3662 gobject_class
->finalize
= (void (*)(GObject
*self
)) traceset_state_finalize
;
3663 klass
->init
= (void (*)(LttvTracesetContext
*self
, LttvTraceset
*ts
))init
;
3664 klass
->fini
= (void (*)(LttvTracesetContext
*self
))fini
;
3665 klass
->new_traceset_context
= new_traceset_context
;
3666 klass
->new_trace_context
= new_trace_context
;
3667 klass
->new_tracefile_context
= new_tracefile_context
;
3672 lttv_traceset_state_get_type(void)
3674 static GType type
= 0;
3676 static const GTypeInfo info
= {
3677 sizeof (LttvTracesetStateClass
),
3678 NULL
, /* base_init */
3679 NULL
, /* base_finalize */
3680 (GClassInitFunc
) traceset_state_class_init
, /* class_init */
3681 NULL
, /* class_finalize */
3682 NULL
, /* class_data */
3683 sizeof (LttvTracesetState
),
3684 0, /* n_preallocs */
3685 (GInstanceInitFunc
) traceset_state_instance_init
, /* instance_init */
3686 NULL
/* value handling */
3689 type
= g_type_register_static (LTTV_TRACESET_CONTEXT_TYPE
, "LttvTracesetStateType",
3697 trace_state_instance_init (GTypeInstance
*instance
, gpointer g_class
)
3703 trace_state_finalize (LttvTraceState
*self
)
3705 G_OBJECT_CLASS(g_type_class_peek(LTTV_TRACE_CONTEXT_TYPE
))->
3706 finalize(G_OBJECT(self
));
3711 trace_state_class_init (LttvTraceStateClass
*klass
)
3713 GObjectClass
*gobject_class
= G_OBJECT_CLASS(klass
);
3715 gobject_class
->finalize
= (void (*)(GObject
*self
)) trace_state_finalize
;
3716 klass
->state_save
= state_save
;
3717 klass
->state_restore
= state_restore
;
3718 klass
->state_saved_free
= state_saved_free
;
3723 lttv_trace_state_get_type(void)
3725 static GType type
= 0;
3727 static const GTypeInfo info
= {
3728 sizeof (LttvTraceStateClass
),
3729 NULL
, /* base_init */
3730 NULL
, /* base_finalize */
3731 (GClassInitFunc
) trace_state_class_init
, /* class_init */
3732 NULL
, /* class_finalize */
3733 NULL
, /* class_data */
3734 sizeof (LttvTraceState
),
3735 0, /* n_preallocs */
3736 (GInstanceInitFunc
) trace_state_instance_init
, /* instance_init */
3737 NULL
/* value handling */
3740 type
= g_type_register_static (LTTV_TRACE_CONTEXT_TYPE
,
3741 "LttvTraceStateType", &info
, 0);
3748 tracefile_state_instance_init (GTypeInstance
*instance
, gpointer g_class
)
3754 tracefile_state_finalize (LttvTracefileState
*self
)
3756 G_OBJECT_CLASS(g_type_class_peek(LTTV_TRACEFILE_CONTEXT_TYPE
))->
3757 finalize(G_OBJECT(self
));
3762 tracefile_state_class_init (LttvTracefileStateClass
*klass
)
3764 GObjectClass
*gobject_class
= G_OBJECT_CLASS(klass
);
3766 gobject_class
->finalize
= (void (*)(GObject
*self
)) tracefile_state_finalize
;
3771 lttv_tracefile_state_get_type(void)
3773 static GType type
= 0;
3775 static const GTypeInfo info
= {
3776 sizeof (LttvTracefileStateClass
),
3777 NULL
, /* base_init */
3778 NULL
, /* base_finalize */
3779 (GClassInitFunc
) tracefile_state_class_init
, /* class_init */
3780 NULL
, /* class_finalize */
3781 NULL
, /* class_data */
3782 sizeof (LttvTracefileState
),
3783 0, /* n_preallocs */
3784 (GInstanceInitFunc
) tracefile_state_instance_init
, /* instance_init */
3785 NULL
/* value handling */
3788 type
= g_type_register_static (LTTV_TRACEFILE_CONTEXT_TYPE
,
3789 "LttvTracefileStateType", &info
, 0);
3795 static void module_init()
3797 LTTV_STATE_UNNAMED
= g_quark_from_string("");
3798 LTTV_STATE_UNBRANDED
= g_quark_from_string("");
3799 LTTV_STATE_MODE_UNKNOWN
= g_quark_from_string("MODE_UNKNOWN");
3800 LTTV_STATE_USER_MODE
= g_quark_from_string("USER_MODE");
3801 LTTV_STATE_SYSCALL
= g_quark_from_string("SYSCALL");
3802 LTTV_STATE_TRAP
= g_quark_from_string("TRAP");
3803 LTTV_STATE_IRQ
= g_quark_from_string("IRQ");
3804 LTTV_STATE_SOFT_IRQ
= g_quark_from_string("SOFTIRQ");
3805 LTTV_STATE_SUBMODE_UNKNOWN
= g_quark_from_string("UNKNOWN");
3806 LTTV_STATE_SUBMODE_NONE
= g_quark_from_string("NONE");
3807 LTTV_STATE_WAIT_FORK
= g_quark_from_string("WAIT_FORK");
3808 LTTV_STATE_WAIT_CPU
= g_quark_from_string("WAIT_CPU");
3809 LTTV_STATE_EXIT
= g_quark_from_string("EXIT");
3810 LTTV_STATE_ZOMBIE
= g_quark_from_string("ZOMBIE");
3811 LTTV_STATE_WAIT
= g_quark_from_string("WAIT");
3812 LTTV_STATE_RUN
= g_quark_from_string("RUN");
3813 LTTV_STATE_DEAD
= g_quark_from_string("DEAD");
3814 LTTV_STATE_USER_THREAD
= g_quark_from_string("USER_THREAD");
3815 LTTV_STATE_KERNEL_THREAD
= g_quark_from_string("KERNEL_THREAD");
3816 LTTV_STATE_TRACEFILES
= g_quark_from_string("tracefiles");
3817 LTTV_STATE_PROCESSES
= g_quark_from_string("processes");
3818 LTTV_STATE_PROCESS
= g_quark_from_string("process");
3819 LTTV_STATE_RUNNING_PROCESS
= g_quark_from_string("running_process");
3820 LTTV_STATE_EVENT
= g_quark_from_string("event");
3821 LTTV_STATE_SAVED_STATES
= g_quark_from_string("saved states");
3822 LTTV_STATE_SAVED_STATES_TIME
= g_quark_from_string("saved states time");
3823 LTTV_STATE_TIME
= g_quark_from_string("time");
3824 LTTV_STATE_HOOKS
= g_quark_from_string("saved state hooks");
3825 LTTV_STATE_NAME_TABLES
= g_quark_from_string("name tables");
3826 LTTV_STATE_TRACE_STATE_USE_COUNT
=
3827 g_quark_from_string("trace_state_use_count");
3828 LTTV_STATE_RESOURCE_CPUS
= g_quark_from_string("cpu resource states");
3829 LTTV_STATE_RESOURCE_IRQS
= g_quark_from_string("irq resource states");
3830 LTTV_STATE_RESOURCE_BLKDEVS
= g_quark_from_string("blkdevs resource states");
3833 LTT_FACILITY_KERNEL
= g_quark_from_string("kernel");
3834 LTT_FACILITY_KERNEL_ARCH
= g_quark_from_string("kernel_arch");
3835 LTT_FACILITY_FS
= g_quark_from_string("fs");
3836 LTT_FACILITY_LIST
= g_quark_from_string("list");
3837 LTT_FACILITY_USER_GENERIC
= g_quark_from_string("user_generic");
3838 LTT_FACILITY_BLOCK
= g_quark_from_string("block");
3841 LTT_EVENT_SYSCALL_ENTRY
= g_quark_from_string("syscall_entry");
3842 LTT_EVENT_SYSCALL_EXIT
= g_quark_from_string("syscall_exit");
3843 LTT_EVENT_TRAP_ENTRY
= g_quark_from_string("trap_entry");
3844 LTT_EVENT_TRAP_EXIT
= g_quark_from_string("trap_exit");
3845 LTT_EVENT_IRQ_ENTRY
= g_quark_from_string("irq_entry");
3846 LTT_EVENT_IRQ_EXIT
= g_quark_from_string("irq_exit");
3847 LTT_EVENT_SOFT_IRQ_ENTRY
= g_quark_from_string("softirq_entry");
3848 LTT_EVENT_SOFT_IRQ_EXIT
= g_quark_from_string("softirq_exit");
3849 LTT_EVENT_SCHED_SCHEDULE
= g_quark_from_string("sched_schedule");
3850 LTT_EVENT_PROCESS_FORK
= g_quark_from_string("process_fork");
3851 LTT_EVENT_KTHREAD_CREATE
= g_quark_from_string("kthread_create");
3852 LTT_EVENT_PROCESS_EXIT
= g_quark_from_string("process_exit");
3853 LTT_EVENT_PROCESS_FREE
= g_quark_from_string("process_free");
3854 LTT_EVENT_EXEC
= g_quark_from_string("exec");
3855 LTT_EVENT_PROCESS_STATE
= g_quark_from_string("process_state");
3856 LTT_EVENT_STATEDUMP_END
= g_quark_from_string("statedump_end");
3857 LTT_EVENT_FUNCTION_ENTRY
= g_quark_from_string("function_entry");
3858 LTT_EVENT_FUNCTION_EXIT
= g_quark_from_string("function_exit");
3859 LTT_EVENT_THREAD_BRAND
= g_quark_from_string("thread_brand");
3860 LTT_EVENT_REQUEST_ISSUE
= g_quark_from_string("_blk_request_issue");
3861 LTT_EVENT_REQUEST_COMPLETE
= g_quark_from_string("_blk_request_complete");
3862 LTT_EVENT_LIST_INTERRUPT
= g_quark_from_string("interrupt");;
3865 LTT_FIELD_SYSCALL_ID
= g_quark_from_string("syscall_id");
3866 LTT_FIELD_TRAP_ID
= g_quark_from_string("trap_id");
3867 LTT_FIELD_IRQ_ID
= g_quark_from_string("irq_id");
3868 LTT_FIELD_SOFT_IRQ_ID
= g_quark_from_string("softirq_id");
3869 LTT_FIELD_PREV_PID
= g_quark_from_string("prev_pid");
3870 LTT_FIELD_NEXT_PID
= g_quark_from_string("next_pid");
3871 LTT_FIELD_PREV_STATE
= g_quark_from_string("prev_state");
3872 LTT_FIELD_PARENT_PID
= g_quark_from_string("parent_pid");
3873 LTT_FIELD_CHILD_PID
= g_quark_from_string("child_pid");
3874 LTT_FIELD_PID
= g_quark_from_string("pid");
3875 LTT_FIELD_TGID
= g_quark_from_string("tgid");
3876 LTT_FIELD_CHILD_TGID
= g_quark_from_string("child_tgid");
3877 LTT_FIELD_FILENAME
= g_quark_from_string("filename");
3878 LTT_FIELD_NAME
= g_quark_from_string("name");
3879 LTT_FIELD_TYPE
= g_quark_from_string("type");
3880 LTT_FIELD_MODE
= g_quark_from_string("mode");
3881 LTT_FIELD_SUBMODE
= g_quark_from_string("submode");
3882 LTT_FIELD_STATUS
= g_quark_from_string("status");
3883 LTT_FIELD_THIS_FN
= g_quark_from_string("this_fn");
3884 LTT_FIELD_CALL_SITE
= g_quark_from_string("call_site");
3885 LTT_FIELD_MAJOR
= g_quark_from_string("major");
3886 LTT_FIELD_MINOR
= g_quark_from_string("minor");
3887 LTT_FIELD_OPERATION
= g_quark_from_string("direction");
3888 LTT_FIELD_ACTION
= g_quark_from_string("action");
3890 LTTV_CPU_UNKNOWN
= g_quark_from_string("unknown");
3891 LTTV_CPU_IDLE
= g_quark_from_string("idle");
3892 LTTV_CPU_BUSY
= g_quark_from_string("busy");
3893 LTTV_CPU_IRQ
= g_quark_from_string("irq");
3894 LTTV_CPU_TRAP
= g_quark_from_string("trap");
3896 LTTV_IRQ_UNKNOWN
= g_quark_from_string("unknown");
3897 LTTV_IRQ_IDLE
= g_quark_from_string("idle");
3898 LTTV_IRQ_BUSY
= g_quark_from_string("busy");
3900 LTTV_BDEV_UNKNOWN
= g_quark_from_string("unknown");
3901 LTTV_BDEV_IDLE
= g_quark_from_string("idle");
3902 LTTV_BDEV_BUSY_READING
= g_quark_from_string("busy_reading");
3903 LTTV_BDEV_BUSY_WRITING
= g_quark_from_string("busy_writing");
3906 static void module_destroy()
3911 LTTV_MODULE("state", "State computation", \
3912 "Update the system state, possibly saving it at intervals", \
3913 module_init
, module_destroy
)