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,
24 #include <lttv/lttv.h>
25 #include <lttv/module.h>
26 #include <lttv/state.h>
27 #include <ltt/trace.h>
28 #include <ltt/event.h>
35 * usertrace is there only to be able to update the current CPU of the
36 * usertraces when there is a schedchange. it is a way to link the ProcessState
37 * to the associated usertrace. Link only created upon thread creation.
39 * The cpu id is necessary : it gives us back the current ProcessState when we
40 * are considering data from the usertrace.
43 #define PREALLOCATED_EXECUTION_STACK 10
45 /* Facilities Quarks */
49 LTT_FACILITY_KERNEL_ARCH
,
52 LTT_FACILITY_USER_GENERIC
,
58 LTT_EVENT_SYSCALL_ENTRY
,
59 LTT_EVENT_SYSCALL_EXIT
,
64 LTT_EVENT_SOFT_IRQ_ENTRY
,
65 LTT_EVENT_SOFT_IRQ_EXIT
,
66 LTT_EVENT_SCHED_SCHEDULE
,
67 LTT_EVENT_PROCESS_FORK
,
68 LTT_EVENT_KTHREAD_CREATE
,
69 LTT_EVENT_PROCESS_EXIT
,
70 LTT_EVENT_PROCESS_FREE
,
72 LTT_EVENT_PROCESS_STATE
,
73 LTT_EVENT_STATEDUMP_END
,
74 LTT_EVENT_FUNCTION_ENTRY
,
75 LTT_EVENT_FUNCTION_EXIT
,
76 LTT_EVENT_THREAD_BRAND
,
77 LTT_EVENT_REQUEST_ISSUE
,
78 LTT_EVENT_REQUEST_COMPLETE
,
79 LTT_EVENT_LIST_INTERRUPT
;
87 LTT_FIELD_SOFT_IRQ_ID
,
111 LTTV_STATE_MODE_UNKNOWN
,
112 LTTV_STATE_USER_MODE
,
119 LTTV_STATE_SUBMODE_UNKNOWN
,
120 LTTV_STATE_SUBMODE_NONE
;
124 LTTV_STATE_WAIT_FORK
,
133 LTTV_STATE_UNBRANDED
;
136 LTTV_STATE_USER_THREAD
,
137 LTTV_STATE_KERNEL_THREAD
;
154 LTTV_BDEV_BUSY_READING
,
155 LTTV_BDEV_BUSY_WRITING
;
158 LTTV_STATE_TRACEFILES
,
159 LTTV_STATE_PROCESSES
,
161 LTTV_STATE_RUNNING_PROCESS
,
163 LTTV_STATE_SAVED_STATES
,
164 LTTV_STATE_SAVED_STATES_TIME
,
167 LTTV_STATE_NAME_TABLES
,
168 LTTV_STATE_TRACE_STATE_USE_COUNT
,
169 LTTV_STATE_RESOURCE_CPUS
,
170 LTTV_STATE_RESOURCE_IRQS
,
171 LTTV_STATE_RESOURCE_BLKDEVS
;
173 static void create_max_time(LttvTraceState
*tcs
);
175 static void get_max_time(LttvTraceState
*tcs
);
177 static void free_max_time(LttvTraceState
*tcs
);
179 static void create_name_tables(LttvTraceState
*tcs
);
181 static void get_name_tables(LttvTraceState
*tcs
);
183 static void free_name_tables(LttvTraceState
*tcs
);
185 static void free_saved_state(LttvTraceState
*tcs
);
187 static void lttv_state_free_process_table(GHashTable
*processes
);
189 static void lttv_trace_states_read_raw(LttvTraceState
*tcs
, FILE *fp
,
190 GPtrArray
*quarktable
);
192 /* Resource function prototypes */
193 static LttvBdevState
*get_hashed_bdevstate(LttvTraceState
*ts
, guint16 devcode
);
194 static LttvBdevState
*bdevstate_new(void);
195 static void bdevstate_free(LttvBdevState
*);
196 static void bdevstate_free_cb(gpointer key
, gpointer value
, gpointer user_data
);
197 static LttvBdevState
*bdevstate_copy(LttvBdevState
*bds
);
198 static LttvBdevState
*bdev_state_get(LttvTraceState
*ts
, guint16 devcode
);
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
)
1624 GString
*fe_name
= g_string_new("");
1626 LttvNameTables
*name_tables
= g_new(LttvNameTables
, 1);
1628 LttvAttributeValue v
;
1630 lttv_attribute_find(tcs
->parent
.t_a
, LTTV_STATE_NAME_TABLES
,
1632 g_assert(*(v
.v_pointer
) == NULL
);
1633 *(v
.v_pointer
) = name_tables
;
1635 if(!lttv_trace_find_hook(tcs
->parent
.t
,
1636 LTT_EVENT_SYSCALL_ENTRY
,
1637 LTT_FIELD_SYSCALL_ID
, 0, 0,
1640 th
= lttv_trace_hook_get_first(&th
);
1642 t
= ltt_field_type(th
->f1
);
1643 nb
= ltt_type_element_number(t
);
1645 lttv_trace_hook_destroy(&th
);
1647 name_tables
->syscall_names
= g_new(GQuark
, nb
);
1648 name_tables
->nb_syscalls
= nb
;
1650 for(i
= 0 ; i
< nb
; i
++) {
1651 name_tables
->syscall_names
[i
] = ltt_enum_string_get(t
, i
);
1652 if(!name_tables
->syscall_names
[i
]) {
1653 GString
*string
= g_string_new("");
1654 g_string_printf(string
, "syscall %u", i
);
1655 name_tables
->syscall_names
[i
] = g_quark_from_string(string
->str
);
1656 g_string_free(string
, TRUE
);
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;
1670 if(!lttv_trace_find_hook(tcs
->parent
.t
,
1671 LTT_EVENT_TRAP_ENTRY
,
1672 LTT_FIELD_TRAP_ID
, 0, 0,
1675 th
= lttv_trace_hook_get_first(&th
);
1677 t
= ltt_field_type(th
->f1
);
1678 //nb = ltt_type_element_number(t);
1680 lttv_trace_hook_destroy(&h
);
1683 name_tables->trap_names = g_new(GQuark, nb);
1684 for(i = 0 ; i < nb ; i++) {
1685 name_tables->trap_names[i] = g_quark_from_string(
1686 ltt_enum_string_get(t, i));
1689 name_tables
->nb_traps
= 256;
1690 name_tables
->trap_names
= g_new(GQuark
, 256);
1691 for(i
= 0 ; i
< 256 ; i
++) {
1692 g_string_printf(fe_name
, "trap %d", i
);
1693 name_tables
->trap_names
[i
] = g_quark_from_string(fe_name
->str
);
1696 name_tables
->trap_names
= NULL
;
1697 name_tables
->nb_traps
= 0;
1700 if(!lttv_trace_find_hook(tcs
->parent
.t
,
1701 LTT_EVENT_IRQ_ENTRY
,
1702 LTT_FIELD_IRQ_ID
, 0, 0,
1705 th
= lttv_trace_hook_get_first(&h
);
1707 t
= ltt_field_type(th
->f1
);
1708 //nb = ltt_type_element_number(t);
1710 lttv_trace_hook_destroy(&h
);
1713 name_tables->irq_names = g_new(GQuark, nb);
1714 for(i = 0 ; i < nb ; i++) {
1715 name_tables->irq_names[i] = g_quark_from_string(ltt_enum_string_get(t, i));
1719 name_tables
->nb_irqs
= 256;
1720 name_tables
->irq_names
= g_new(GQuark
, 256);
1721 for(i
= 0 ; i
< 256 ; i
++) {
1722 g_string_printf(fe_name
, "irq %d", i
);
1723 name_tables
->irq_names
[i
] = g_quark_from_string(fe_name
->str
);
1726 name_tables
->nb_irqs
= 0;
1727 name_tables
->irq_names
= NULL
;
1730 name_tables->soft_irq_names = g_new(GQuark, nb);
1731 for(i = 0 ; i < nb ; i++) {
1732 name_tables->soft_irq_names[i] = g_quark_from_string(ltt_enum_string_get(t, i));
1736 name_tables
->nb_softirqs
= 256;
1737 name_tables
->soft_irq_names
= g_new(GQuark
, 256);
1738 for(i
= 0 ; i
< 256 ; i
++) {
1739 g_string_printf(fe_name
, "softirq %d", i
);
1740 name_tables
->soft_irq_names
[i
] = g_quark_from_string(fe_name
->str
);
1744 g_string_free(fe_name
, TRUE
);
1749 get_name_tables(LttvTraceState
*tcs
)
1751 LttvNameTables
*name_tables
;
1753 LttvAttributeValue v
;
1755 lttv_attribute_find(tcs
->parent
.t_a
, LTTV_STATE_NAME_TABLES
,
1757 g_assert(*(v
.v_pointer
) != NULL
);
1758 name_tables
= (LttvNameTables
*)*(v
.v_pointer
);
1759 //tcs->eventtype_names = name_tables->eventtype_names;
1760 tcs
->syscall_names
= name_tables
->syscall_names
;
1761 tcs
->nb_syscalls
= name_tables
->nb_syscalls
;
1762 tcs
->trap_names
= name_tables
->trap_names
;
1763 tcs
->nb_traps
= name_tables
->nb_traps
;
1764 tcs
->irq_names
= name_tables
->irq_names
;
1765 tcs
->soft_irq_names
= name_tables
->soft_irq_names
;
1766 tcs
->nb_irqs
= name_tables
->nb_irqs
;
1767 tcs
->nb_softirqs
= name_tables
->nb_softirqs
;
1772 free_name_tables(LttvTraceState
*tcs
)
1774 LttvNameTables
*name_tables
;
1776 LttvAttributeValue v
;
1778 lttv_attribute_find(tcs
->parent
.t_a
, LTTV_STATE_NAME_TABLES
,
1780 name_tables
= (LttvNameTables
*)*(v
.v_pointer
);
1781 *(v
.v_pointer
) = NULL
;
1783 // g_free(name_tables->eventtype_names);
1784 if(name_tables
->syscall_names
) g_free(name_tables
->syscall_names
);
1785 if(name_tables
->trap_names
) g_free(name_tables
->trap_names
);
1786 if(name_tables
->irq_names
) g_free(name_tables
->irq_names
);
1787 if(name_tables
->soft_irq_names
) g_free(name_tables
->soft_irq_names
);
1788 if(name_tables
) g_free(name_tables
);
1791 #ifdef HASH_TABLE_DEBUG
1793 static void test_process(gpointer key
, gpointer value
, gpointer user_data
)
1795 LttvProcessState
*process
= (LttvProcessState
*)value
;
1797 /* Test for process corruption */
1798 guint stack_len
= process
->execution_stack
->len
;
1801 static void hash_table_check(GHashTable
*table
)
1803 g_hash_table_foreach(table
, test_process
, NULL
);
1809 /* clears the stack and sets the state passed as argument */
1810 static void cpu_set_base_mode(LttvCPUState
*cpust
, LttvCPUMode state
)
1812 g_array_set_size(cpust
->mode_stack
, 1);
1813 ((GQuark
*)cpust
->mode_stack
->data
)[0] = state
;
1816 static void cpu_push_mode(LttvCPUState
*cpust
, LttvCPUMode state
)
1818 g_array_set_size(cpust
->mode_stack
, cpust
->mode_stack
->len
+ 1);
1819 ((GQuark
*)cpust
->mode_stack
->data
)[cpust
->mode_stack
->len
- 1] = state
;
1822 static void cpu_pop_mode(LttvCPUState
*cpust
)
1824 if(cpust
->mode_stack
->len
<= 1)
1825 cpu_set_base_mode(cpust
, LTTV_CPU_UNKNOWN
);
1827 g_array_set_size(cpust
->mode_stack
, cpust
->mode_stack
->len
- 1);
1830 /* clears the stack and sets the state passed as argument */
1831 static void bdev_set_base_mode(LttvBdevState
*bdevst
, LttvBdevMode state
)
1833 g_array_set_size(bdevst
->mode_stack
, 1);
1834 ((GQuark
*)bdevst
->mode_stack
->data
)[0] = state
;
1837 static void bdev_push_mode(LttvBdevState
*bdevst
, LttvBdevMode state
)
1839 g_array_set_size(bdevst
->mode_stack
, bdevst
->mode_stack
->len
+ 1);
1840 ((GQuark
*)bdevst
->mode_stack
->data
)[bdevst
->mode_stack
->len
- 1] = state
;
1843 static void bdev_pop_mode(LttvBdevState
*bdevst
)
1845 if(bdevst
->mode_stack
->len
<= 1)
1846 bdev_set_base_mode(bdevst
, LTTV_BDEV_UNKNOWN
);
1848 g_array_set_size(bdevst
->mode_stack
, bdevst
->mode_stack
->len
- 1);
1851 static void irq_set_base_mode(LttvIRQState
*irqst
, LttvIRQMode state
)
1853 g_array_set_size(irqst
->mode_stack
, 1);
1854 ((GQuark
*)irqst
->mode_stack
->data
)[0] = state
;
1857 static void irq_push_mode(LttvIRQState
*irqst
, LttvIRQMode state
)
1859 g_array_set_size(irqst
->mode_stack
, irqst
->mode_stack
->len
+ 1);
1860 ((GQuark
*)irqst
->mode_stack
->data
)[irqst
->mode_stack
->len
- 1] = state
;
1863 static void irq_pop_mode(LttvIRQState
*irqst
)
1865 if(irqst
->mode_stack
->len
<= 1)
1866 irq_set_base_mode(irqst
, LTTV_IRQ_UNKNOWN
);
1868 g_array_set_size(irqst
->mode_stack
, irqst
->mode_stack
->len
- 1);
1871 static void push_state(LttvTracefileState
*tfs
, LttvExecutionMode t
,
1874 LttvExecutionState
*es
;
1876 LttvTraceState
*ts
= (LttvTraceState
*)tfs
->parent
.t_context
;
1877 guint cpu
= tfs
->cpu
;
1879 #ifdef HASH_TABLE_DEBUG
1880 hash_table_check(ts
->processes
);
1882 LttvProcessState
*process
= ts
->running_process
[cpu
];
1884 guint depth
= process
->execution_stack
->len
;
1886 process
->execution_stack
=
1887 g_array_set_size(process
->execution_stack
, depth
+ 1);
1890 &g_array_index(process
->execution_stack
, LttvExecutionState
, depth
- 1);
1892 es
= &g_array_index(process
->execution_stack
, LttvExecutionState
, depth
);
1895 es
->entry
= es
->change
= tfs
->parent
.timestamp
;
1896 es
->cum_cpu_time
= ltt_time_zero
;
1897 es
->s
= process
->state
->s
;
1898 process
->state
= es
;
1902 * return 1 when empty, else 0 */
1903 int lttv_state_pop_state_cleanup(LttvProcessState
*process
,
1904 LttvTracefileState
*tfs
)
1906 guint depth
= process
->execution_stack
->len
;
1912 process
->execution_stack
=
1913 g_array_set_size(process
->execution_stack
, depth
- 1);
1914 process
->state
= &g_array_index(process
->execution_stack
, LttvExecutionState
,
1916 process
->state
->change
= tfs
->parent
.timestamp
;
1921 static void pop_state(LttvTracefileState
*tfs
, LttvExecutionMode t
)
1923 guint cpu
= tfs
->cpu
;
1924 LttvTraceState
*ts
= (LttvTraceState
*)tfs
->parent
.t_context
;
1925 LttvProcessState
*process
= ts
->running_process
[cpu
];
1927 guint depth
= process
->execution_stack
->len
;
1929 if(process
->state
->t
!= t
){
1930 g_info("Different execution mode type (%lu.%09lu): ignore it\n",
1931 tfs
->parent
.timestamp
.tv_sec
, tfs
->parent
.timestamp
.tv_nsec
);
1932 g_info("process state has %s when pop_int is %s\n",
1933 g_quark_to_string(process
->state
->t
),
1934 g_quark_to_string(t
));
1935 g_info("{ %u, %u, %s, %s, %s }\n",
1938 g_quark_to_string(process
->name
),
1939 g_quark_to_string(process
->brand
),
1940 g_quark_to_string(process
->state
->s
));
1945 g_info("Trying to pop last state on stack (%lu.%09lu): ignore it\n",
1946 tfs
->parent
.timestamp
.tv_sec
, tfs
->parent
.timestamp
.tv_nsec
);
1950 process
->execution_stack
=
1951 g_array_set_size(process
->execution_stack
, depth
- 1);
1952 process
->state
= &g_array_index(process
->execution_stack
, LttvExecutionState
,
1954 process
->state
->change
= tfs
->parent
.timestamp
;
1957 struct search_result
{
1958 const LttTime
*time
; /* Requested time */
1959 LttTime
*best
; /* Best result */
1962 static gint
search_usertrace(gconstpointer a
, gconstpointer b
)
1964 const LttTime
*elem_time
= (const LttTime
*)a
;
1965 /* Explicit non const cast */
1966 struct search_result
*res
= (struct search_result
*)b
;
1968 if(ltt_time_compare(*elem_time
, *(res
->time
)) < 0) {
1969 /* The usertrace was created before the schedchange */
1970 /* Get larger keys */
1972 } else if(ltt_time_compare(*elem_time
, *(res
->time
)) >= 0) {
1973 /* The usertrace was created after the schedchange time */
1974 /* Get smaller keys */
1976 if(ltt_time_compare(*elem_time
, *res
->best
) < 0) {
1977 res
->best
= (LttTime
*)elem_time
;
1980 res
->best
= (LttTime
*)elem_time
;
1987 static LttvTracefileState
*ltt_state_usertrace_find(LttvTraceState
*tcs
,
1988 guint pid
, const LttTime
*timestamp
)
1990 LttvTracefileState
*tfs
= NULL
;
1991 struct search_result res
;
1992 /* Find the usertrace associated with a pid and time interval.
1993 * Search in the usertraces by PID (within a hash) and then, for each
1994 * corresponding element of the array, find the first one with creation
1995 * timestamp the lowest, but higher or equal to "timestamp". */
1996 res
.time
= timestamp
;
1998 GTree
*usertrace_tree
= g_hash_table_lookup(tcs
->usertraces
, (gpointer
)pid
);
1999 if(usertrace_tree
) {
2000 g_tree_search(usertrace_tree
, search_usertrace
, &res
);
2002 tfs
= g_tree_lookup(usertrace_tree
, res
.best
);
2010 lttv_state_create_process(LttvTraceState
*tcs
, LttvProcessState
*parent
,
2011 guint cpu
, guint pid
, guint tgid
, GQuark name
, const LttTime
*timestamp
)
2013 LttvProcessState
*process
= g_new(LttvProcessState
, 1);
2015 LttvExecutionState
*es
;
2020 process
->tgid
= tgid
;
2022 process
->name
= name
;
2023 process
->brand
= LTTV_STATE_UNBRANDED
;
2024 //process->last_cpu = tfs->cpu_name;
2025 //process->last_cpu_index = ltt_tracefile_num(((LttvTracefileContext*)tfs)->tf);
2026 process
->type
= LTTV_STATE_USER_THREAD
;
2027 process
->usertrace
= ltt_state_usertrace_find(tcs
, pid
, timestamp
);
2028 process
->current_function
= 0; //function 0x0 by default.
2030 g_info("Process %u, core %p", process
->pid
, process
);
2031 g_hash_table_insert(tcs
->processes
, process
, process
);
2034 process
->ppid
= parent
->pid
;
2035 process
->creation_time
= *timestamp
;
2038 /* No parent. This process exists but we are missing all information about
2039 its creation. The birth time is set to zero but we remember the time of
2044 process
->creation_time
= ltt_time_zero
;
2047 process
->insertion_time
= *timestamp
;
2048 sprintf(buffer
,"%d-%lu.%lu",pid
, process
->creation_time
.tv_sec
,
2049 process
->creation_time
.tv_nsec
);
2050 process
->pid_time
= g_quark_from_string(buffer
);
2052 //process->last_cpu = tfs->cpu_name;
2053 //process->last_cpu_index = ltt_tracefile_num(((LttvTracefileContext*)tfs)->tf);
2054 process
->execution_stack
= g_array_sized_new(FALSE
, FALSE
,
2055 sizeof(LttvExecutionState
), PREALLOCATED_EXECUTION_STACK
);
2056 process
->execution_stack
= g_array_set_size(process
->execution_stack
, 2);
2057 es
= process
->state
= &g_array_index(process
->execution_stack
,
2058 LttvExecutionState
, 0);
2059 es
->t
= LTTV_STATE_USER_MODE
;
2060 es
->n
= LTTV_STATE_SUBMODE_NONE
;
2061 es
->entry
= *timestamp
;
2062 //g_assert(timestamp->tv_sec != 0);
2063 es
->change
= *timestamp
;
2064 es
->cum_cpu_time
= ltt_time_zero
;
2065 es
->s
= LTTV_STATE_RUN
;
2067 es
= process
->state
= &g_array_index(process
->execution_stack
,
2068 LttvExecutionState
, 1);
2069 es
->t
= LTTV_STATE_SYSCALL
;
2070 es
->n
= LTTV_STATE_SUBMODE_NONE
;
2071 es
->entry
= *timestamp
;
2072 //g_assert(timestamp->tv_sec != 0);
2073 es
->change
= *timestamp
;
2074 es
->cum_cpu_time
= ltt_time_zero
;
2075 es
->s
= LTTV_STATE_WAIT_FORK
;
2077 /* Allocate an empty function call stack. If it's empty, use 0x0. */
2078 process
->user_stack
= g_array_sized_new(FALSE
, FALSE
,
2079 sizeof(guint64
), 0);
2084 LttvProcessState
*lttv_state_find_process(LttvTraceState
*ts
, guint cpu
,
2087 LttvProcessState key
;
2088 LttvProcessState
*process
;
2092 process
= g_hash_table_lookup(ts
->processes
, &key
);
2097 lttv_state_find_process_or_create(LttvTraceState
*ts
, guint cpu
, guint pid
,
2098 const LttTime
*timestamp
)
2100 LttvProcessState
*process
= lttv_state_find_process(ts
, cpu
, pid
);
2101 LttvExecutionState
*es
;
2103 /* Put ltt_time_zero creation time for unexisting processes */
2104 if(unlikely(process
== NULL
)) {
2105 process
= lttv_state_create_process(ts
,
2106 NULL
, cpu
, pid
, 0, LTTV_STATE_UNNAMED
, timestamp
);
2107 /* We are not sure is it's a kernel thread or normal thread, put the
2108 * bottom stack state to unknown */
2109 process
->execution_stack
=
2110 g_array_set_size(process
->execution_stack
, 1);
2111 process
->state
= es
=
2112 &g_array_index(process
->execution_stack
, LttvExecutionState
, 0);
2113 es
->t
= LTTV_STATE_MODE_UNKNOWN
;
2114 es
->s
= LTTV_STATE_UNNAMED
;
2119 /* FIXME : this function should be called when we receive an event telling that
2120 * release_task has been called in the kernel. In happens generally when
2121 * the parent waits for its child terminaison, but may also happen in special
2122 * cases in the child's exit : when the parent ignores its children SIGCCHLD or
2123 * has the flag SA_NOCLDWAIT. It can also happen when the child is part
2124 * of a killed thread ground, but isn't the leader.
2126 static void exit_process(LttvTracefileState
*tfs
, LttvProcessState
*process
)
2128 LttvTraceState
*ts
= LTTV_TRACE_STATE(tfs
->parent
.t_context
);
2129 LttvProcessState key
;
2131 key
.pid
= process
->pid
;
2132 key
.cpu
= process
->cpu
;
2133 g_hash_table_remove(ts
->processes
, &key
);
2134 g_array_free(process
->execution_stack
, TRUE
);
2135 g_array_free(process
->user_stack
, TRUE
);
2140 static void free_process_state(gpointer key
, gpointer value
,gpointer user_data
)
2142 g_array_free(((LttvProcessState
*)value
)->execution_stack
, TRUE
);
2143 g_array_free(((LttvProcessState
*)value
)->user_stack
, TRUE
);
2148 static void lttv_state_free_process_table(GHashTable
*processes
)
2150 g_hash_table_foreach(processes
, free_process_state
, NULL
);
2151 g_hash_table_destroy(processes
);
2155 static gboolean
syscall_entry(void *hook_data
, void *call_data
)
2157 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2159 LttvTraceState
*ts
= (LttvTraceState
*)s
->parent
.t_context
;
2160 LttvProcessState
*process
= ts
->running_process
[cpu
];
2161 LttEvent
*e
= ltt_tracefile_get_event(s
->parent
.tf
);
2162 LttvTraceHook
*th
= (LttvTraceHook
*)hook_data
;
2163 struct marker_field
*f
= th
->f1
;
2165 LttvExecutionSubmode submode
;
2167 guint nb_syscalls
= ((LttvTraceState
*)(s
->parent
.t_context
))->nb_syscalls
;
2168 guint syscall
= ltt_event_get_unsigned(e
, f
);
2170 if(syscall
< nb_syscalls
) {
2171 submode
= ((LttvTraceState
*)(s
->parent
.t_context
))->syscall_names
[
2174 /* Fixup an incomplete syscall table */
2175 GString
*string
= g_string_new("");
2176 g_string_printf(string
, "syscall %u", syscall
);
2177 submode
= g_quark_from_string(string
->str
);
2178 g_string_free(string
, TRUE
);
2180 /* There can be no system call from PID 0 : unknown state */
2181 if(process
->pid
!= 0)
2182 push_state(s
, LTTV_STATE_SYSCALL
, submode
);
2187 static gboolean
syscall_exit(void *hook_data
, void *call_data
)
2189 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2191 LttvTraceState
*ts
= (LttvTraceState
*)s
->parent
.t_context
;
2192 LttvProcessState
*process
= ts
->running_process
[cpu
];
2194 /* There can be no system call from PID 0 : unknown state */
2195 if(process
->pid
!= 0)
2196 pop_state(s
, LTTV_STATE_SYSCALL
);
2201 static gboolean
trap_entry(void *hook_data
, void *call_data
)
2203 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2204 LttEvent
*e
= ltt_tracefile_get_event(s
->parent
.tf
);
2205 LttvTraceHook
*th
= (LttvTraceHook
*)hook_data
;
2206 struct marker_field
*f
= th
->f1
;
2208 LttvExecutionSubmode submode
;
2210 guint64 nb_traps
= ((LttvTraceState
*)(s
->parent
.t_context
))->nb_traps
;
2211 guint64 trap
= ltt_event_get_long_unsigned(e
, f
);
2213 if(trap
< nb_traps
) {
2214 submode
= ((LttvTraceState
*)(s
->parent
.t_context
))->trap_names
[trap
];
2216 /* Fixup an incomplete trap table */
2217 GString
*string
= g_string_new("");
2218 g_string_printf(string
, "trap %llu", trap
);
2219 submode
= g_quark_from_string(string
->str
);
2220 g_string_free(string
, TRUE
);
2223 push_state(s
, LTTV_STATE_TRAP
, submode
);
2225 /* update cpu status */
2226 cpu_push_mode(s
->cpu_state
, LTTV_CPU_TRAP
);
2231 static gboolean
trap_exit(void *hook_data
, void *call_data
)
2233 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2235 pop_state(s
, LTTV_STATE_TRAP
);
2237 /* update cpu status */
2238 cpu_pop_mode(s
->cpu_state
);
2243 static gboolean
irq_entry(void *hook_data
, void *call_data
)
2245 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2246 LttvTraceState
*ts
= (LttvTraceState
*)s
->parent
.t_context
;
2247 LttEvent
*e
= ltt_tracefile_get_event(s
->parent
.tf
);
2248 //guint8 ev_id = ltt_event_eventtype_id(e);
2249 LttvTraceHook
*th
= (LttvTraceHook
*)hook_data
;
2250 g_assert(th
->f1
!= NULL
);
2251 struct marker_field
*f
= th
->f1
;
2253 LttvExecutionSubmode submode
;
2254 guint64 irq
= ltt_event_get_long_unsigned(e
, f
);
2255 guint64 nb_irqs
= ((LttvTraceState
*)(s
->parent
.t_context
))->nb_irqs
;
2258 submode
= ((LttvTraceState
*)(s
->parent
.t_context
))->irq_names
[irq
];
2260 /* Fixup an incomplete irq table */
2261 GString
*string
= g_string_new("");
2262 g_string_printf(string
, "irq %llu", irq
);
2263 submode
= g_quark_from_string(string
->str
);
2264 g_string_free(string
, TRUE
);
2267 /* Do something with the info about being in user or system mode when int? */
2268 push_state(s
, LTTV_STATE_IRQ
, submode
);
2270 /* update cpu status */
2271 cpu_push_mode(s
->cpu_state
, LTTV_CPU_IRQ
);
2273 /* update irq status */
2274 s
->cpu_state
->last_irq
= irq
;
2275 irq_push_mode(&ts
->irq_states
[irq
], LTTV_IRQ_BUSY
);
2280 static gboolean
soft_irq_exit(void *hook_data
, void *call_data
)
2282 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2284 pop_state(s
, LTTV_STATE_SOFT_IRQ
);
2290 static gboolean
irq_exit(void *hook_data
, void *call_data
)
2292 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2293 LttvTraceState
*ts
= (LttvTraceState
*)s
->parent
.t_context
;
2295 pop_state(s
, LTTV_STATE_IRQ
);
2297 /* update cpu status */
2298 cpu_pop_mode(s
->cpu_state
);
2300 /* update irq status */
2301 irq_pop_mode(&ts
->irq_states
[s
->cpu_state
->last_irq
]);
2306 static gboolean
soft_irq_entry(void *hook_data
, void *call_data
)
2308 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2309 LttEvent
*e
= ltt_tracefile_get_event(s
->parent
.tf
);
2310 //guint8 ev_id = ltt_event_eventtype_id(e);
2311 LttvTraceHook
*th
= (LttvTraceHook
*)hook_data
;
2312 g_assert(th
->f1
!= NULL
);
2313 struct marker_field
*f
= th
->f1
;
2315 LttvExecutionSubmode submode
;
2316 guint64 softirq
= ltt_event_get_long_unsigned(e
, f
);
2317 guint64 nb_softirqs
= ((LttvTraceState
*)(s
->parent
.t_context
))->nb_softirqs
;
2319 if(softirq
< nb_softirqs
) {
2320 submode
= ((LttvTraceState
*)(s
->parent
.t_context
))->soft_irq_names
[softirq
];
2322 /* Fixup an incomplete irq table */
2323 GString
*string
= g_string_new("");
2324 g_string_printf(string
, "softirq %llu", softirq
);
2325 submode
= g_quark_from_string(string
->str
);
2326 g_string_free(string
, TRUE
);
2329 /* Do something with the info about being in user or system mode when int? */
2330 push_state(s
, LTTV_STATE_SOFT_IRQ
, submode
);
2334 static gboolean
enum_interrupt(void *hook_data
, void *call_data
)
2336 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2337 LttvTraceState
*ts
= (LttvTraceState
*)s
->parent
.t_context
;
2338 LttEvent
*e
= ltt_tracefile_get_event(s
->parent
.tf
);
2339 //guint8 ev_id = ltt_event_eventtype_id(e);
2340 LttvTraceHook
*th
= (LttvTraceHook
*)hook_data
;
2342 GQuark action
= g_quark_from_string(ltt_event_get_string(e
, th
->f1
));
2343 guint irq
= ltt_event_get_long_unsigned(e
, th
->f2
);
2345 ts
->irq_names
[irq
] = action
;
2351 static gboolean
bdev_request_issue(void *hook_data
, void *call_data
)
2353 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2354 LttvTraceState
*ts
= (LttvTraceState
*)s
->parent
.t_context
;
2355 LttEvent
*e
= ltt_tracefile_get_event(s
->parent
.tf
);
2356 //guint8 ev_id = ltt_event_eventtype_id(e);
2357 LttvTraceHook
*th
= (LttvTraceHook
*)hook_data
;
2359 guint major
= ltt_event_get_long_unsigned(e
, th
->f1
);
2360 guint minor
= ltt_event_get_long_unsigned(e
, th
->f2
);
2361 guint oper
= ltt_event_get_long_unsigned(e
, th
->f3
);
2362 guint16 devcode
= MKDEV(major
,minor
);
2364 /* have we seen this block device before? */
2365 gpointer bdev
= get_hashed_bdevstate(ts
, devcode
);
2368 bdev_push_mode(bdev
, LTTV_BDEV_BUSY_READING
);
2370 bdev_push_mode(bdev
, LTTV_BDEV_BUSY_WRITING
);
2375 static gboolean
bdev_request_complete(void *hook_data
, void *call_data
)
2377 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2378 LttvTraceState
*ts
= (LttvTraceState
*)s
->parent
.t_context
;
2379 LttEvent
*e
= ltt_tracefile_get_event(s
->parent
.tf
);
2380 LttvTraceHook
*th
= (LttvTraceHook
*)hook_data
;
2382 guint major
= ltt_event_get_long_unsigned(e
, th
->f1
);
2383 guint minor
= ltt_event_get_long_unsigned(e
, th
->f2
);
2384 //guint oper = ltt_event_get_long_unsigned(e, th->f3);
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 g_assert(th
->f1
!= NULL
);
2455 struct marker_field
*f
= th
->f1
;
2456 guint64 funcptr
= ltt_event_get_long_unsigned(e
, f
);
2458 push_function(s
, funcptr
);
2462 static gboolean
function_exit(void *hook_data
, void *call_data
)
2464 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2465 LttEvent
*e
= ltt_tracefile_get_event(s
->parent
.tf
);
2466 //guint8 ev_id = ltt_event_eventtype_id(e);
2467 LttvTraceHook
*th
= (LttvTraceHook
*)hook_data
;
2468 g_assert(th
->f1
!= NULL
);
2469 struct marker_field
*f
= th
->f1
;
2470 guint64 funcptr
= ltt_event_get_long_unsigned(e
, f
);
2472 pop_function(s
, funcptr
);
2476 static gboolean
schedchange(void *hook_data
, void *call_data
)
2478 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2480 LttvTraceState
*ts
= (LttvTraceState
*)s
->parent
.t_context
;
2481 LttvProcessState
*process
= ts
->running_process
[cpu
];
2482 //LttvProcessState *old_process = ts->running_process[cpu];
2484 LttEvent
*e
= ltt_tracefile_get_event(s
->parent
.tf
);
2485 LttvTraceHook
*th
= (LttvTraceHook
*)hook_data
;
2486 guint pid_in
, pid_out
;
2489 pid_out
= ltt_event_get_unsigned(e
, th
->f1
);
2490 pid_in
= ltt_event_get_unsigned(e
, th
->f2
);
2491 state_out
= ltt_event_get_long_int(e
, th
->f3
);
2493 if(likely(process
!= NULL
)) {
2495 /* We could not know but it was not the idle process executing.
2496 This should only happen at the beginning, before the first schedule
2497 event, and when the initial information (current process for each CPU)
2498 is missing. It is not obvious how we could, after the fact, compensate
2499 the wrongly attributed statistics. */
2501 //This test only makes sense once the state is known and if there is no
2502 //missing events. We need to silently ignore schedchange coming after a
2503 //process_free, or it causes glitches. (FIXME)
2504 //if(unlikely(process->pid != pid_out)) {
2505 // g_assert(process->pid == 0);
2507 if(process
->pid
== 0
2508 && process
->state
->t
== LTTV_STATE_MODE_UNKNOWN
) {
2510 /* Scheduling out of pid 0 at beginning of the trace :
2511 * we know for sure it is in syscall mode at this point. */
2512 g_assert(process
->execution_stack
->len
== 1);
2513 process
->state
->t
= LTTV_STATE_SYSCALL
;
2514 process
->state
->s
= LTTV_STATE_WAIT
;
2515 process
->state
->change
= s
->parent
.timestamp
;
2516 process
->state
->entry
= s
->parent
.timestamp
;
2519 if(unlikely(process
->state
->s
== LTTV_STATE_EXIT
)) {
2520 process
->state
->s
= LTTV_STATE_ZOMBIE
;
2521 process
->state
->change
= s
->parent
.timestamp
;
2523 if(unlikely(state_out
== 0)) process
->state
->s
= LTTV_STATE_WAIT_CPU
;
2524 else process
->state
->s
= LTTV_STATE_WAIT
;
2525 process
->state
->change
= s
->parent
.timestamp
;
2528 if(state_out
== 32 || state_out
== 128)
2529 exit_process(s
, process
); /* EXIT_DEAD || TASK_DEAD */
2530 /* see sched.h for states */
2533 process
= ts
->running_process
[cpu
] =
2534 lttv_state_find_process_or_create(
2535 (LttvTraceState
*)s
->parent
.t_context
,
2537 &s
->parent
.timestamp
);
2538 process
->state
->s
= LTTV_STATE_RUN
;
2540 if(process
->usertrace
)
2541 process
->usertrace
->cpu
= cpu
;
2542 // process->last_cpu_index = ltt_tracefile_num(((LttvTracefileContext*)s)->tf);
2543 process
->state
->change
= s
->parent
.timestamp
;
2545 /* update cpu status */
2547 cpu_set_base_mode(s
->cpu_state
, LTTV_CPU_IDLE
);
2549 cpu_set_base_mode(s
->cpu_state
, LTTV_CPU_BUSY
);
2554 static gboolean
process_fork(void *hook_data
, void *call_data
)
2556 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2557 LttEvent
*e
= ltt_tracefile_get_event(s
->parent
.tf
);
2558 LttvTraceHook
*th
= (LttvTraceHook
*)hook_data
;
2560 guint child_pid
; /* In the Linux Kernel, there is one PID per thread. */
2561 guint child_tgid
; /* tgid in the Linux kernel is the "real" POSIX PID. */
2562 //LttvProcessState *zombie_process;
2564 LttvTraceState
*ts
= (LttvTraceState
*)s
->parent
.t_context
;
2565 LttvProcessState
*process
= ts
->running_process
[cpu
];
2566 LttvProcessState
*child_process
;
2569 parent_pid
= ltt_event_get_unsigned(e
, th
->f1
);
2572 child_pid
= ltt_event_get_unsigned(e
, th
->f2
);
2573 s
->parent
.target_pid
= child_pid
;
2576 if(th
->f3
) child_tgid
= ltt_event_get_unsigned(e
, th
->f3
);
2577 else child_tgid
= 0;
2579 /* Mathieu : it seems like the process might have been scheduled in before the
2580 * fork, and, in a rare case, might be the current process. This might happen
2581 * in a SMP case where we don't have enough precision on the clocks.
2583 * Test reenabled after precision fixes on time. (Mathieu) */
2585 zombie_process
= lttv_state_find_process(ts
, ANY_CPU
, child_pid
);
2587 if(unlikely(zombie_process
!= NULL
)) {
2588 /* Reutilisation of PID. Only now we are sure that the old PID
2589 * has been released. FIXME : should know when release_task happens instead.
2591 guint num_cpus
= ltt_trace_get_num_cpu(ts
->parent
.t
);
2593 for(i
=0; i
< num_cpus
; i
++) {
2594 g_assert(zombie_process
!= ts
->running_process
[i
]);
2597 exit_process(s
, zombie_process
);
2600 g_assert(process
->pid
!= child_pid
);
2601 // FIXME : Add this test in the "known state" section
2602 // g_assert(process->pid == parent_pid);
2603 child_process
= lttv_state_find_process(ts
, ANY_CPU
, child_pid
);
2604 if(child_process
== NULL
) {
2605 child_process
= lttv_state_create_process(ts
, process
, cpu
,
2606 child_pid
, child_tgid
,
2607 LTTV_STATE_UNNAMED
, &s
->parent
.timestamp
);
2609 /* The process has already been created : due to time imprecision between
2610 * multiple CPUs : it has been scheduled in before creation. Note that we
2611 * shouldn't have this kind of imprecision.
2613 * Simply put a correct parent.
2615 g_assert(0); /* This is a problematic case : the process has been created
2616 before the fork event */
2617 child_process
->ppid
= process
->pid
;
2618 child_process
->tgid
= child_tgid
;
2620 g_assert(child_process
->name
== LTTV_STATE_UNNAMED
);
2621 child_process
->name
= process
->name
;
2622 child_process
->brand
= process
->brand
;
2627 /* We stamp a newly created process as kernel_thread.
2628 * The thread should not be running yet. */
2629 static gboolean
process_kernel_thread(void *hook_data
, void *call_data
)
2631 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2632 LttEvent
*e
= ltt_tracefile_get_event(s
->parent
.tf
);
2633 LttvTraceHook
*th
= (LttvTraceHook
*)hook_data
;
2635 LttvTraceState
*ts
= (LttvTraceState
*)s
->parent
.t_context
;
2636 LttvProcessState
*process
;
2637 LttvExecutionState
*es
;
2640 pid
= (guint
)ltt_event_get_long_unsigned(e
, th
->f1
);
2641 s
->parent
.target_pid
= pid
;
2643 process
= lttv_state_find_process_or_create(ts
, ANY_CPU
, pid
,
2645 process
->execution_stack
=
2646 g_array_set_size(process
->execution_stack
, 1);
2647 es
= process
->state
=
2648 &g_array_index(process
->execution_stack
, LttvExecutionState
, 0);
2649 es
->t
= LTTV_STATE_SYSCALL
;
2650 process
->type
= LTTV_STATE_KERNEL_THREAD
;
2655 static gboolean
process_exit(void *hook_data
, void *call_data
)
2657 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2658 LttEvent
*e
= ltt_tracefile_get_event(s
->parent
.tf
);
2659 LttvTraceHook
*th
= (LttvTraceHook
*)hook_data
;
2661 LttvTraceState
*ts
= (LttvTraceState
*)s
->parent
.t_context
;
2662 LttvProcessState
*process
; // = ts->running_process[cpu];
2664 pid
= ltt_event_get_unsigned(e
, th
->f1
);
2665 s
->parent
.target_pid
= pid
;
2667 // FIXME : Add this test in the "known state" section
2668 // g_assert(process->pid == pid);
2670 process
= lttv_state_find_process(ts
, ANY_CPU
, pid
);
2671 if(likely(process
!= NULL
)) {
2672 process
->state
->s
= LTTV_STATE_EXIT
;
2677 static gboolean
process_free(void *hook_data
, void *call_data
)
2679 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2680 LttvTraceState
*ts
= (LttvTraceState
*)s
->parent
.t_context
;
2681 LttEvent
*e
= ltt_tracefile_get_event(s
->parent
.tf
);
2682 LttvTraceHook
*th
= (LttvTraceHook
*)hook_data
;
2684 LttvProcessState
*process
;
2686 /* PID of the process to release */
2687 release_pid
= ltt_event_get_unsigned(e
, th
->f1
);
2688 s
->parent
.target_pid
= release_pid
;
2690 g_assert(release_pid
!= 0);
2692 process
= lttv_state_find_process(ts
, ANY_CPU
, release_pid
);
2694 if(likely(process
!= NULL
)) {
2695 /* release_task is happening at kernel level : we can now safely release
2696 * the data structure of the process */
2697 //This test is fun, though, as it may happen that
2698 //at time t : CPU 0 : process_free
2699 //at time t+150ns : CPU 1 : schedule out
2700 //Clearly due to time imprecision, we disable it. (Mathieu)
2701 //If this weird case happen, we have no choice but to put the
2702 //Currently running process on the cpu to 0.
2703 //I re-enable it following time precision fixes. (Mathieu)
2704 //Well, in the case where an process is freed by a process on another CPU
2705 //and still scheduled, it happens that this is the schedchange that will
2706 //drop the last reference count. Do not free it here!
2707 guint num_cpus
= ltt_trace_get_num_cpu(ts
->parent
.t
);
2709 for(i
=0; i
< num_cpus
; i
++) {
2710 //g_assert(process != ts->running_process[i]);
2711 if(process
== ts
->running_process
[i
]) {
2712 //ts->running_process[i] = lttv_state_find_process(ts, i, 0);
2716 if(i
== num_cpus
) /* process is not scheduled */
2717 exit_process(s
, process
);
2724 static gboolean
process_exec(void *hook_data
, void *call_data
)
2726 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2727 LttvTraceState
*ts
= (LttvTraceState
*)s
->parent
.t_context
;
2728 LttEvent
*e
= ltt_tracefile_get_event(s
->parent
.tf
);
2729 LttvTraceHook
*th
= (LttvTraceHook
*)hook_data
;
2732 LttvProcessState
*process
= ts
->running_process
[cpu
];
2734 #if 0//how to use a sequence that must be transformed in a string
2735 /* PID of the process to release */
2736 guint64 name_len
= ltt_event_field_element_number(e
, thf
->f1
);
2737 //name = ltt_event_get_string(e, thf->f1);
2738 LttField
*child
= ltt_event_field_element_select(e
, thf
->f1
, 0);
2740 (gchar
*)(ltt_event_data(e
)+ltt_event_field_offset(e
, child
));
2741 gchar
*null_term_name
= g_new(gchar
, name_len
+1);
2742 memcpy(null_term_name
, name_begin
, name_len
);
2743 null_term_name
[name_len
] = '\0';
2744 process
->name
= g_quark_from_string(null_term_name
);
2747 process
->name
= g_quark_from_string(ltt_event_get_string(e
, th
->f1
));
2748 process
->brand
= LTTV_STATE_UNBRANDED
;
2749 //g_free(null_term_name);
2753 static gboolean
thread_brand(void *hook_data
, void *call_data
)
2755 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2756 LttvTraceState
*ts
= (LttvTraceState
*)s
->parent
.t_context
;
2757 LttEvent
*e
= ltt_tracefile_get_event(s
->parent
.tf
);
2758 LttvTraceHook
*th
= (LttvTraceHook
*)hook_data
;
2761 LttvProcessState
*process
= ts
->running_process
[cpu
];
2763 name
= ltt_event_get_string(e
, th
->f1
);
2764 process
->brand
= g_quark_from_string(name
);
2769 static void fix_process(gpointer key
, gpointer value
,
2772 LttvProcessState
*process
;
2773 LttvExecutionState
*es
;
2774 process
= (LttvProcessState
*)value
;
2775 LttTime
*timestamp
= (LttTime
*)user_data
;
2777 if(process
->type
== LTTV_STATE_KERNEL_THREAD
) {
2778 es
= &g_array_index(process
->execution_stack
, LttvExecutionState
, 0);
2779 if(es
->t
== LTTV_STATE_MODE_UNKNOWN
) {
2780 es
->t
= LTTV_STATE_SYSCALL
;
2781 es
->n
= LTTV_STATE_SUBMODE_NONE
;
2782 es
->entry
= *timestamp
;
2783 es
->change
= *timestamp
;
2784 es
->cum_cpu_time
= ltt_time_zero
;
2785 if(es
->s
== LTTV_STATE_UNNAMED
)
2786 es
->s
= LTTV_STATE_WAIT
;
2789 es
= &g_array_index(process
->execution_stack
, LttvExecutionState
, 0);
2790 if(es
->t
== LTTV_STATE_MODE_UNKNOWN
) {
2791 es
->t
= LTTV_STATE_USER_MODE
;
2792 es
->n
= LTTV_STATE_SUBMODE_NONE
;
2793 es
->entry
= *timestamp
;
2794 //g_assert(timestamp->tv_sec != 0);
2795 es
->change
= *timestamp
;
2796 es
->cum_cpu_time
= ltt_time_zero
;
2797 if(es
->s
== LTTV_STATE_UNNAMED
)
2798 es
->s
= LTTV_STATE_RUN
;
2800 if(process
->execution_stack
->len
== 1) {
2801 /* Still in bottom unknown mode, means never did a system call
2802 * May be either in user mode, syscall mode, running or waiting.*/
2803 /* FIXME : we may be tagging syscall mode when being user mode */
2804 process
->execution_stack
=
2805 g_array_set_size(process
->execution_stack
, 2);
2806 es
= process
->state
= &g_array_index(process
->execution_stack
,
2807 LttvExecutionState
, 1);
2808 es
->t
= LTTV_STATE_SYSCALL
;
2809 es
->n
= LTTV_STATE_SUBMODE_NONE
;
2810 es
->entry
= *timestamp
;
2811 //g_assert(timestamp->tv_sec != 0);
2812 es
->change
= *timestamp
;
2813 es
->cum_cpu_time
= ltt_time_zero
;
2814 if(es
->s
== LTTV_STATE_WAIT_FORK
)
2815 es
->s
= LTTV_STATE_WAIT
;
2821 static gboolean
statedump_end(void *hook_data
, void *call_data
)
2823 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2824 LttvTraceState
*ts
= (LttvTraceState
*)s
->parent
.t_context
;
2825 LttvTracefileContext
*tfc
= (LttvTracefileContext
*)call_data
;
2826 //LttEvent *e = ltt_tracefile_get_event(s->parent.tf);
2827 //LttvTraceHook *th = (LttvTraceHook *)hook_data;
2829 /* For all processes */
2830 /* if kernel thread, if stack[0] is unknown, set to syscall mode, wait */
2831 /* else, if stack[0] is unknown, set to user mode, running */
2833 g_hash_table_foreach(ts
->processes
, fix_process
, &tfc
->timestamp
);
2838 static gboolean
enum_process_state(void *hook_data
, void *call_data
)
2840 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2841 LttEvent
*e
= ltt_tracefile_get_event(s
->parent
.tf
);
2842 //It's slow : optimise later by doing this before reading trace.
2843 LttvTraceHook
*th
= (LttvTraceHook
*)hook_data
;
2849 LttvTraceState
*ts
= (LttvTraceState
*)s
->parent
.t_context
;
2850 LttvProcessState
*process
= ts
->running_process
[cpu
];
2851 LttvProcessState
*parent_process
;
2852 struct marker_field
*f4
, *f5
, *f6
, *f7
, *f8
;
2853 GQuark type
, mode
, submode
, status
;
2854 LttvExecutionState
*es
;
2856 struct marker_info
*mi
;
2859 pid
= ltt_event_get_unsigned(e
, th
->f1
);
2860 s
->parent
.target_pid
= pid
;
2863 parent_pid
= ltt_event_get_unsigned(e
, th
->f2
);
2866 command
= ltt_event_get_string(e
, th
->f3
);
2869 mi
= marker_get_info_from_id(ts
->parent
.t
, e
->event_id
);
2870 f4
= marker_get_field(mi
, 3);
2871 g_assert(f4
->name
== LTT_FIELD_TYPE
);
2872 type
= ltt_enum_string_get(ltt_field_type(f4
),
2873 ltt_event_get_unsigned(e
, f4
));
2876 f5
= marker_get_field(mi
, 4);
2877 g_assert(f5
->name
== LTT_FIELD_MODE
);
2878 mode
= ltt_enum_string_get(ltt_field_type(f5
),
2879 ltt_event_get_unsigned(e
, f5
));
2882 f6
= marker_get_field(mi
, 5);
2883 g_assert(f6
->name
== LTT_FIELD_SUBMODE
);
2884 submode
= ltt_enum_string_get(ltt_field_type(f6
),
2885 ltt_event_get_unsigned(e
, f6
));
2888 f7
= marker_get_field(mi
, 6);
2889 g_assert(f7
->name
== LTT_FIELD_STATUS
);
2890 status
= ltt_enum_string_get(ltt_field_type(f7
),
2891 ltt_event_get_unsigned(e
, f7
));
2894 f8
= marker_get_field(mi
, 7);
2895 g_assert(f8
->name
== LTT_FIELD_TGID
);
2896 if(f8
) tgid
= ltt_event_get_unsigned(e
, f8
);
2901 nb_cpus
= ltt_trace_get_num_cpu(ts
->parent
.t
);
2902 for(i
=0; i
<nb_cpus
; i
++) {
2903 process
= lttv_state_find_process(ts
, i
, pid
);
2904 g_assert(process
!= NULL
);
2906 process
->ppid
= parent_pid
;
2907 process
->tgid
= tgid
;
2908 process
->name
= g_quark_from_string(command
);
2910 &g_array_index(process
->execution_stack
, LttvExecutionState
, 0);
2911 process
->type
= LTTV_STATE_KERNEL_THREAD
;
2915 /* The process might exist if a process was forked while performing the
2917 process
= lttv_state_find_process(ts
, ANY_CPU
, pid
);
2918 if(process
== NULL
) {
2919 parent_process
= lttv_state_find_process(ts
, ANY_CPU
, parent_pid
);
2920 process
= lttv_state_create_process(ts
, parent_process
, cpu
,
2921 pid
, tgid
, g_quark_from_string(command
),
2922 &s
->parent
.timestamp
);
2924 /* Keep the stack bottom : a running user mode */
2925 /* Disabled because of inconsistencies in the current statedump states. */
2926 if(type
== LTTV_STATE_KERNEL_THREAD
) {
2927 /* Only keep the bottom
2928 * FIXME Kernel thread : can be in syscall or interrupt or trap. */
2929 /* Will cause expected trap when in fact being syscall (even after end of
2931 * Will cause expected interrupt when being syscall. (only before end of
2932 * statedump event) */
2933 // This will cause a "popping last state on stack, ignoring it."
2934 process
->execution_stack
= g_array_set_size(process
->execution_stack
, 1);
2935 es
= process
->state
= &g_array_index(process
->execution_stack
,
2936 LttvExecutionState
, 0);
2937 process
->type
= LTTV_STATE_KERNEL_THREAD
;
2938 es
->t
= LTTV_STATE_MODE_UNKNOWN
;
2939 es
->s
= LTTV_STATE_UNNAMED
;
2940 es
->n
= LTTV_STATE_SUBMODE_UNKNOWN
;
2942 es
->t
= LTTV_STATE_SYSCALL
;
2947 /* User space process :
2948 * bottom : user mode
2949 * either currently running or scheduled out.
2950 * can be scheduled out because interrupted in (user mode or in syscall)
2951 * or because of an explicit call to the scheduler in syscall. Note that
2952 * the scheduler call comes after the irq_exit, so never in interrupt
2954 // temp workaround : set size to 1 : only have user mode bottom of stack.
2955 // will cause g_info message of expected syscall mode when in fact being
2956 // in user mode. Can also cause expected trap when in fact being user
2957 // mode in the event of a page fault reenabling interrupts in the handler.
2958 // Expected syscall and trap can also happen after the end of statedump
2959 // This will cause a "popping last state on stack, ignoring it."
2960 process
->execution_stack
= g_array_set_size(process
->execution_stack
, 1);
2961 es
= process
->state
= &g_array_index(process
->execution_stack
,
2962 LttvExecutionState
, 0);
2963 es
->t
= LTTV_STATE_MODE_UNKNOWN
;
2964 es
->s
= LTTV_STATE_UNNAMED
;
2965 es
->n
= LTTV_STATE_SUBMODE_UNKNOWN
;
2967 es
->t
= LTTV_STATE_USER_MODE
;
2975 es
= process
->state
= &g_array_index(process
->execution_stack
,
2976 LttvExecutionState
, 1);
2977 es
->t
= LTTV_STATE_MODE_UNKNOWN
;
2978 es
->s
= LTTV_STATE_UNNAMED
;
2979 es
->n
= LTTV_STATE_SUBMODE_UNKNOWN
;
2983 /* The process has already been created :
2984 * Probably was forked while dumping the process state or
2985 * was simply scheduled in prior to get the state dump event.
2987 process
->ppid
= parent_pid
;
2988 process
->tgid
= tgid
;
2989 process
->name
= g_quark_from_string(command
);
2990 process
->type
= type
;
2992 &g_array_index(process
->execution_stack
, LttvExecutionState
, 0);
2994 if(es
->t
== LTTV_STATE_MODE_UNKNOWN
) {
2995 if(type
== LTTV_STATE_KERNEL_THREAD
)
2996 es
->t
= LTTV_STATE_SYSCALL
;
2998 es
->t
= LTTV_STATE_USER_MODE
;
3001 /* Don't mess around with the stack, it will eventually become
3002 * ok after the end of state dump. */
3009 gint
lttv_state_hook_add_event_hooks(void *hook_data
, void *call_data
)
3011 LttvTracesetState
*tss
= (LttvTracesetState
*)(call_data
);
3013 lttv_state_add_event_hooks(tss
);
3018 void lttv_state_add_event_hooks(LttvTracesetState
*self
)
3020 LttvTraceset
*traceset
= self
->parent
.ts
;
3022 guint i
, j
, k
, l
, nb_trace
, nb_tracefile
;
3026 LttvTracefileState
*tfs
;
3032 LttvTraceHook
*hook
;
3034 LttvAttributeValue val
;
3039 nb_trace
= lttv_traceset_number(traceset
);
3040 for(i
= 0 ; i
< nb_trace
; i
++) {
3041 ts
= (LttvTraceState
*)self
->parent
.traces
[i
];
3043 /* Find the eventtype id for the following events and register the
3044 associated by id hooks. */
3046 hooks
= g_array_sized_new(FALSE
, FALSE
, sizeof(LttvTraceHook
), 19);
3047 hooks
= g_array_set_size(hooks
, 19); // Max possible number of hooks.
3050 ret
= lttv_trace_find_hook(ts
->parent
.t
,
3051 LTT_EVENT_SYSCALL_ENTRY
,
3052 LTT_FIELD_SYSCALL_ID
, 0, 0,
3053 syscall_entry
, NULL
, &g_array_index(hooks
, LttvTraceHook
, hn
++));
3056 ret
= lttv_trace_find_hook(ts
->parent
.t
,
3057 LTT_EVENT_SYSCALL_EXIT
,
3059 syscall_exit
, NULL
, &g_array_index(hooks
, LttvTraceHook
, hn
++));
3062 ret
= lttv_trace_find_hook(ts
->parent
.t
,
3063 LTT_EVENT_TRAP_ENTRY
,
3064 LTT_FIELD_TRAP_ID
, 0, 0,
3065 trap_entry
, NULL
, &g_array_index(hooks
, LttvTraceHook
, hn
++));
3068 ret
= lttv_trace_find_hook(ts
->parent
.t
,
3069 LTT_EVENT_TRAP_EXIT
,
3071 trap_exit
, NULL
, &g_array_index(hooks
, LttvTraceHook
, hn
++));
3074 ret
= lttv_trace_find_hook(ts
->parent
.t
,
3075 LTT_EVENT_IRQ_ENTRY
,
3076 LTT_FIELD_IRQ_ID
, 0, 0,
3077 irq_entry
, NULL
, &g_array_index(hooks
, LttvTraceHook
, hn
++));
3080 ret
= lttv_trace_find_hook(ts
->parent
.t
,
3083 irq_exit
, NULL
, &g_array_index(hooks
, LttvTraceHook
, hn
++));
3086 ret
= lttv_trace_find_hook(ts
->parent
.t
,
3087 LTT_EVENT_SOFT_IRQ_ENTRY
,
3088 LTT_FIELD_SOFT_IRQ_ID
, 0, 0,
3089 soft_irq_entry
, NULL
, &g_array_index(hooks
, LttvTraceHook
, hn
++));
3092 ret
= lttv_trace_find_hook(ts
->parent
.t
,
3093 LTT_EVENT_SOFT_IRQ_EXIT
,
3095 soft_irq_exit
, NULL
, &g_array_index(hooks
, LttvTraceHook
, hn
++));
3098 ret
= lttv_trace_find_hook(ts
->parent
.t
,
3099 LTT_EVENT_SCHED_SCHEDULE
,
3100 LTT_FIELD_PREV_PID
, LTT_FIELD_NEXT_PID
, LTT_FIELD_PREV_STATE
,
3101 schedchange
, NULL
, &g_array_index(hooks
, LttvTraceHook
, hn
++));
3104 ret
= lttv_trace_find_hook(ts
->parent
.t
,
3105 LTT_EVENT_PROCESS_FORK
,
3106 LTT_FIELD_PARENT_PID
, LTT_FIELD_CHILD_PID
, LTT_FIELD_CHILD_TGID
,
3107 process_fork
, NULL
, &g_array_index(hooks
, LttvTraceHook
, hn
++));
3110 ret
= lttv_trace_find_hook(ts
->parent
.t
,
3111 LTT_EVENT_KTHREAD_CREATE
,
3112 LTT_FIELD_PID
, 0, 0,
3113 process_kernel_thread
, NULL
, &g_array_index(hooks
, LttvTraceHook
,
3117 ret
= lttv_trace_find_hook(ts
->parent
.t
,
3118 LTT_EVENT_PROCESS_EXIT
,
3119 LTT_FIELD_PID
, 0, 0,
3120 process_exit
, NULL
, &g_array_index(hooks
, LttvTraceHook
, hn
++));
3123 ret
= lttv_trace_find_hook(ts
->parent
.t
,
3124 LTT_EVENT_PROCESS_FREE
,
3125 LTT_FIELD_PID
, 0, 0,
3126 process_free
, NULL
, &g_array_index(hooks
, LttvTraceHook
, hn
++));
3129 ret
= lttv_trace_find_hook(ts
->parent
.t
,
3131 LTT_FIELD_FILENAME
, 0, 0,
3132 process_exec
, NULL
, &g_array_index(hooks
, LttvTraceHook
, hn
++));
3135 ret
= lttv_trace_find_hook(ts
->parent
.t
,
3136 LTT_EVENT_THREAD_BRAND
,
3137 LTT_FIELD_NAME
, 0, 0,
3138 thread_brand
, NULL
, &g_array_index(hooks
, LttvTraceHook
, hn
++));
3141 /* statedump-related hooks */
3142 ret
= lttv_trace_find_hook(ts
->parent
.t
,
3143 LTT_EVENT_PROCESS_STATE
,
3144 LTT_FIELD_PID
, LTT_FIELD_PARENT_PID
, LTT_FIELD_NAME
,
3145 enum_process_state
, NULL
, &g_array_index(hooks
, LttvTraceHook
, hn
++));
3148 ret
= lttv_trace_find_hook(ts
->parent
.t
,
3149 LTT_EVENT_STATEDUMP_END
,
3151 statedump_end
, NULL
, &g_array_index(hooks
, LttvTraceHook
, hn
++));
3154 ret
= lttv_trace_find_hook(ts
->parent
.t
,
3155 LTT_EVENT_LIST_INTERRUPT
,
3156 LTT_FIELD_ACTION
, LTT_FIELD_NUM
, 0,
3157 enum_interrupt
, NULL
, &g_array_index(hooks
, LttvTraceHook
, hn
++));
3160 ret
= lttv_trace_find_hook(ts
->parent
.t
,
3161 LTT_EVENT_REQUEST_ISSUE
,
3162 LTT_FIELD_MAJOR
, LTT_FIELD_MINOR
, LTT_FIELD_OPERATION
,
3163 bdev_request_issue
, NULL
, &g_array_index(hooks
, LttvTraceHook
, hn
++));
3166 ret
= lttv_trace_find_hook(ts
->parent
.t
,
3167 LTT_EVENT_REQUEST_COMPLETE
,
3168 LTT_FIELD_MAJOR
, LTT_FIELD_MINOR
, LTT_FIELD_OPERATION
,
3169 bdev_request_complete
, NULL
, &g_array_index(hooks
, LttvTraceHook
, hn
++));
3172 ret
= lttv_trace_find_hook(ts
->parent
.t
,
3173 LTT_EVENT_FUNCTION_ENTRY
,
3174 LTT_FIELD_THIS_FN
, LTT_FIELD_CALL_SITE
, 0,
3175 function_entry
, NULL
, &g_array_index(hooks
, LttvTraceHook
, hn
++));
3178 ret
= lttv_trace_find_hook(ts
->parent
.t
,
3179 LTT_EVENT_FUNCTION_EXIT
,
3180 LTT_FIELD_THIS_FN
, LTT_FIELD_CALL_SITE
, 0,
3181 function_exit
, NULL
, &g_array_index(hooks
, LttvTraceHook
, hn
++));
3184 hooks
= g_array_set_size(hooks
, hn
);
3186 /* Add these hooks to each event_by_id hooks list */
3188 nb_tracefile
= ts
->parent
.tracefiles
->len
;
3190 for(j
= 0 ; j
< nb_tracefile
; j
++) {
3192 LTTV_TRACEFILE_STATE(g_array_index(ts
->parent
.tracefiles
,
3193 LttvTracefileContext
*, j
));
3195 for(k
= 0 ; k
< hooks
->len
; k
++) {
3196 hook
= &g_array_index(hooks
, LttvTraceHook
, k
);
3197 for(l
=0;l
<hook
->fac_list
->len
;l
++) {
3198 th
= g_array_index(hook
->fac_list
, LttvTraceHookByFacility
*, l
);
3200 lttv_hooks_by_id_find(tfs
->parent
.event_by_id
, th
->id
),
3207 lttv_attribute_find(ts
->parent
.a
, LTTV_STATE_HOOKS
, LTTV_POINTER
, &val
);
3208 *(val
.v_pointer
) = hooks
;
3212 gint
lttv_state_hook_remove_event_hooks(void *hook_data
, void *call_data
)
3214 LttvTracesetState
*tss
= (LttvTracesetState
*)(call_data
);
3216 lttv_state_remove_event_hooks(tss
);
3221 void lttv_state_remove_event_hooks(LttvTracesetState
*self
)
3223 LttvTraceset
*traceset
= self
->parent
.ts
;
3225 guint i
, j
, k
, l
, nb_trace
, nb_tracefile
;
3229 LttvTracefileState
*tfs
;
3233 LttvTraceHook
*hook
;
3237 LttvAttributeValue val
;
3239 nb_trace
= lttv_traceset_number(traceset
);
3240 for(i
= 0 ; i
< nb_trace
; i
++) {
3241 ts
= LTTV_TRACE_STATE(self
->parent
.traces
[i
]);
3243 lttv_attribute_find(ts
->parent
.a
, LTTV_STATE_HOOKS
, LTTV_POINTER
, &val
);
3244 hooks
= *(val
.v_pointer
);
3246 /* Remove these hooks from each event_by_id hooks list */
3248 nb_tracefile
= ts
->parent
.tracefiles
->len
;
3250 for(j
= 0 ; j
< nb_tracefile
; j
++) {
3252 LTTV_TRACEFILE_STATE(g_array_index(ts
->parent
.tracefiles
,
3253 LttvTracefileContext
*, j
));
3255 for(k
= 0 ; k
< hooks
->len
; k
++) {
3256 hook
= &g_array_index(hooks
, LttvTraceHook
, k
);
3257 for(l
=0;l
<hook
->fac_list
->len
;l
++) {
3258 th
= g_array_index(hook
->fac_list
, LttvTraceHook
*, l
);
3260 lttv_hooks_remove_data(
3261 lttv_hooks_by_id_find(tfs
->parent
.event_by_id
, th
->id
),
3267 for(k
= 0 ; k
< hooks
->len
; k
++)
3268 lttv_trace_hook_destroy(&g_array_index(hooks
, LttvTraceHook
, k
));
3269 g_array_free(hooks
, TRUE
);
3273 static gboolean
state_save_event_hook(void *hook_data
, void *call_data
)
3275 guint
*event_count
= (guint
*)hook_data
;
3277 /* Only save at LTTV_STATE_SAVE_INTERVAL */
3278 if(likely((*event_count
)++ < LTTV_STATE_SAVE_INTERVAL
))
3283 LttvTracefileState
*self
= (LttvTracefileState
*)call_data
;
3285 LttvTraceState
*tcs
= (LttvTraceState
*)(self
->parent
.t_context
);
3287 LttvAttribute
*saved_states_tree
, *saved_state_tree
;
3289 LttvAttributeValue value
;
3291 saved_states_tree
= lttv_attribute_find_subdir(tcs
->parent
.t_a
,
3292 LTTV_STATE_SAVED_STATES
);
3293 saved_state_tree
= g_object_new(LTTV_ATTRIBUTE_TYPE
, NULL
);
3294 value
= lttv_attribute_add(saved_states_tree
,
3295 lttv_attribute_get_number(saved_states_tree
), LTTV_GOBJECT
);
3296 *(value
.v_gobject
) = (GObject
*)saved_state_tree
;
3297 value
= lttv_attribute_add(saved_state_tree
, LTTV_STATE_TIME
, LTTV_TIME
);
3298 *(value
.v_time
) = self
->parent
.timestamp
;
3299 lttv_state_save(tcs
, saved_state_tree
);
3300 g_debug("Saving state at time %lu.%lu", self
->parent
.timestamp
.tv_sec
,
3301 self
->parent
.timestamp
.tv_nsec
);
3303 *(tcs
->max_time_state_recomputed_in_seek
) = self
->parent
.timestamp
;
3308 static gboolean
state_save_after_trace_hook(void *hook_data
, void *call_data
)
3310 LttvTraceState
*tcs
= (LttvTraceState
*)(call_data
);
3312 *(tcs
->max_time_state_recomputed_in_seek
) = tcs
->parent
.time_span
.end_time
;
3317 guint
lttv_state_current_cpu(LttvTracefileState
*tfs
)
3325 static gboolean
block_start(void *hook_data
, void *call_data
)
3327 LttvTracefileState
*self
= (LttvTracefileState
*)call_data
;
3329 LttvTracefileState
*tfcs
;
3331 LttvTraceState
*tcs
= (LttvTraceState
*)(self
->parent
.t_context
);
3333 LttEventPosition
*ep
;
3335 guint i
, nb_block
, nb_event
, nb_tracefile
;
3339 LttvAttribute
*saved_states_tree
, *saved_state_tree
;
3341 LttvAttributeValue value
;
3343 ep
= ltt_event_position_new();
3345 nb_tracefile
= tcs
->parent
.tracefiles
->len
;
3347 /* Count the number of events added since the last block end in any
3350 for(i
= 0 ; i
< nb_tracefile
; i
++) {
3352 LTTV_TRACEFILE_STATE(&g_array_index(tcs
->parent
.tracefiles
,
3353 LttvTracefileContext
, i
));
3354 ltt_event_position(tfcs
->parent
.e
, ep
);
3355 ltt_event_position_get(ep
, &nb_block
, &nb_event
, &tf
);
3356 tcs
->nb_event
+= nb_event
- tfcs
->saved_position
;
3357 tfcs
->saved_position
= nb_event
;
3361 if(tcs
->nb_event
>= tcs
->save_interval
) {
3362 saved_states_tree
= lttv_attribute_find_subdir(tcs
->parent
.t_a
,
3363 LTTV_STATE_SAVED_STATES
);
3364 saved_state_tree
= g_object_new(LTTV_ATTRIBUTE_TYPE
, NULL
);
3365 value
= lttv_attribute_add(saved_states_tree
,
3366 lttv_attribute_get_number(saved_states_tree
), LTTV_GOBJECT
);
3367 *(value
.v_gobject
) = (GObject
*)saved_state_tree
;
3368 value
= lttv_attribute_add(saved_state_tree
, LTTV_STATE_TIME
, LTTV_TIME
);
3369 *(value
.v_time
) = self
->parent
.timestamp
;
3370 lttv_state_save(tcs
, saved_state_tree
);
3372 g_debug("Saving state at time %lu.%lu", self
->parent
.timestamp
.tv_sec
,
3373 self
->parent
.timestamp
.tv_nsec
);
3375 *(tcs
->max_time_state_recomputed_in_seek
) = self
->parent
.timestamp
;
3381 static gboolean
block_end(void *hook_data
, void *call_data
)
3383 LttvTracefileState
*self
= (LttvTracefileState
*)call_data
;
3385 LttvTraceState
*tcs
= (LttvTraceState
*)(self
->parent
.t_context
);
3389 LttEventPosition
*ep
;
3391 guint nb_block
, nb_event
;
3393 ep
= ltt_event_position_new();
3394 ltt_event_position(self
->parent
.e
, ep
);
3395 ltt_event_position_get(ep
, &nb_block
, &nb_event
, &tf
);
3396 tcs
->nb_event
+= nb_event
- self
->saved_position
+ 1;
3397 self
->saved_position
= 0;
3398 *(tcs
->max_time_state_recomputed_in_seek
) = self
->parent
.timestamp
;
3405 void lttv_state_save_add_event_hooks(LttvTracesetState
*self
)
3407 LttvTraceset
*traceset
= self
->parent
.ts
;
3409 guint i
, j
, nb_trace
, nb_tracefile
;
3413 LttvTracefileState
*tfs
;
3415 LttvTraceHook hook_start
, hook_end
;
3417 nb_trace
= lttv_traceset_number(traceset
);
3418 for(i
= 0 ; i
< nb_trace
; i
++) {
3419 ts
= (LttvTraceState
*)self
->parent
.traces
[i
];
3421 lttv_trace_find_hook(ts
->parent
.t
, "core","block_start",NULL
,
3422 NULL
, NULL
, block_start
, &hook_start
);
3423 lttv_trace_find_hook(ts
->parent
.t
, "core","block_end",NULL
,
3424 NULL
, NULL
, block_end
, &hook_end
);
3426 nb_tracefile
= ts
->parent
.tracefiles
->len
;
3428 for(j
= 0 ; j
< nb_tracefile
; j
++) {
3430 LTTV_TRACEFILE_STATE(&g_array_index(ts
->parent
.tracefiles
,
3431 LttvTracefileContext
, j
));
3432 lttv_hooks_add(lttv_hooks_by_id_find(tfs
->parent
.event_by_id
,
3433 hook_start
.id
), hook_start
.h
, NULL
, LTTV_PRIO_STATE
);
3434 lttv_hooks_add(lttv_hooks_by_id_find(tfs
->parent
.event_by_id
,
3435 hook_end
.id
), hook_end
.h
, NULL
, LTTV_PRIO_STATE
);
3441 void lttv_state_save_add_event_hooks(LttvTracesetState
*self
)
3443 LttvTraceset
*traceset
= self
->parent
.ts
;
3445 guint i
, j
, nb_trace
, nb_tracefile
;
3449 LttvTracefileState
*tfs
;
3452 nb_trace
= lttv_traceset_number(traceset
);
3453 for(i
= 0 ; i
< nb_trace
; i
++) {
3455 ts
= (LttvTraceState
*)self
->parent
.traces
[i
];
3456 nb_tracefile
= ts
->parent
.tracefiles
->len
;
3458 if(ts
->has_precomputed_states
) continue;
3460 guint
*event_count
= g_new(guint
, 1);
3463 for(j
= 0 ; j
< nb_tracefile
; j
++) {
3465 LTTV_TRACEFILE_STATE(g_array_index(ts
->parent
.tracefiles
,
3466 LttvTracefileContext
*, j
));
3467 lttv_hooks_add(tfs
->parent
.event
,
3468 state_save_event_hook
,
3475 lttv_process_traceset_begin(&self
->parent
,
3476 NULL
, NULL
, NULL
, NULL
, NULL
);
3480 gint
lttv_state_save_hook_add_event_hooks(void *hook_data
, void *call_data
)
3482 LttvTracesetState
*tss
= (LttvTracesetState
*)(call_data
);
3484 lttv_state_save_add_event_hooks(tss
);
3491 void lttv_state_save_remove_event_hooks(LttvTracesetState
*self
)
3493 LttvTraceset
*traceset
= self
->parent
.ts
;
3495 guint i
, j
, nb_trace
, nb_tracefile
;
3499 LttvTracefileState
*tfs
;
3501 LttvTraceHook hook_start
, hook_end
;
3503 nb_trace
= lttv_traceset_number(traceset
);
3504 for(i
= 0 ; i
< nb_trace
; i
++) {
3505 ts
= LTTV_TRACE_STATE(self
->parent
.traces
[i
]);
3507 lttv_trace_find_hook(ts
->parent
.t
, "core","block_start",NULL
,
3508 NULL
, NULL
, block_start
, &hook_start
);
3510 lttv_trace_find_hook(ts
->parent
.t
, "core","block_end",NULL
,
3511 NULL
, NULL
, block_end
, &hook_end
);
3513 nb_tracefile
= ts
->parent
.tracefiles
->len
;
3515 for(j
= 0 ; j
< nb_tracefile
; j
++) {
3517 LTTV_TRACEFILE_STATE(&g_array_index(ts
->parent
.tracefiles
,
3518 LttvTracefileContext
, j
));
3519 lttv_hooks_remove_data(lttv_hooks_by_id_find(
3520 tfs
->parent
.event_by_id
, hook_start
.id
), hook_start
.h
, NULL
);
3521 lttv_hooks_remove_data(lttv_hooks_by_id_find(
3522 tfs
->parent
.event_by_id
, hook_end
.id
), hook_end
.h
, NULL
);
3528 void lttv_state_save_remove_event_hooks(LttvTracesetState
*self
)
3530 LttvTraceset
*traceset
= self
->parent
.ts
;
3532 guint i
, j
, nb_trace
, nb_tracefile
;
3536 LttvTracefileState
*tfs
;
3538 LttvHooks
*after_trace
= lttv_hooks_new();
3540 lttv_hooks_add(after_trace
,
3541 state_save_after_trace_hook
,
3546 lttv_process_traceset_end(&self
->parent
,
3547 NULL
, after_trace
, NULL
, NULL
, NULL
);
3549 lttv_hooks_destroy(after_trace
);
3551 nb_trace
= lttv_traceset_number(traceset
);
3552 for(i
= 0 ; i
< nb_trace
; i
++) {
3554 ts
= (LttvTraceState
*)self
->parent
.traces
[i
];
3555 nb_tracefile
= ts
->parent
.tracefiles
->len
;
3557 if(ts
->has_precomputed_states
) continue;
3559 guint
*event_count
= NULL
;
3561 for(j
= 0 ; j
< nb_tracefile
; j
++) {
3563 LTTV_TRACEFILE_STATE(g_array_index(ts
->parent
.tracefiles
,
3564 LttvTracefileContext
*, j
));
3565 event_count
= lttv_hooks_remove(tfs
->parent
.event
,
3566 state_save_event_hook
);
3568 if(event_count
) g_free(event_count
);
3572 gint
lttv_state_save_hook_remove_event_hooks(void *hook_data
, void *call_data
)
3574 LttvTracesetState
*tss
= (LttvTracesetState
*)(call_data
);
3576 lttv_state_save_remove_event_hooks(tss
);
3581 void lttv_state_traceset_seek_time_closest(LttvTracesetState
*self
, LttTime t
)
3583 LttvTraceset
*traceset
= self
->parent
.ts
;
3587 int min_pos
, mid_pos
, max_pos
;
3589 guint call_rest
= 0;
3591 LttvTraceState
*tcs
;
3593 LttvAttributeValue value
;
3595 LttvAttributeType type
;
3597 LttvAttributeName name
;
3601 LttvAttribute
*saved_states_tree
, *saved_state_tree
, *closest_tree
;
3603 //g_tree_destroy(self->parent.pqueue);
3604 //self->parent.pqueue = g_tree_new(compare_tracefile);
3606 g_info("Entering seek_time_closest for time %lu.%lu", t
.tv_sec
, t
.tv_nsec
);
3608 nb_trace
= lttv_traceset_number(traceset
);
3609 for(i
= 0 ; i
< nb_trace
; i
++) {
3610 tcs
= (LttvTraceState
*)self
->parent
.traces
[i
];
3612 if(ltt_time_compare(t
, *(tcs
->max_time_state_recomputed_in_seek
)) < 0) {
3613 saved_states_tree
= lttv_attribute_find_subdir(tcs
->parent
.t_a
,
3614 LTTV_STATE_SAVED_STATES
);
3617 if(saved_states_tree
) {
3618 max_pos
= lttv_attribute_get_number(saved_states_tree
) - 1;
3619 mid_pos
= max_pos
/ 2;
3620 while(min_pos
< max_pos
) {
3621 type
= lttv_attribute_get(saved_states_tree
, mid_pos
, &name
, &value
,
3623 g_assert(type
== LTTV_GOBJECT
);
3624 saved_state_tree
= *((LttvAttribute
**)(value
.v_gobject
));
3625 type
= lttv_attribute_get_by_name(saved_state_tree
, LTTV_STATE_TIME
,
3627 g_assert(type
== LTTV_TIME
);
3628 if(ltt_time_compare(*(value
.v_time
), t
) < 0) {
3630 closest_tree
= saved_state_tree
;
3632 else max_pos
= mid_pos
- 1;
3634 mid_pos
= (min_pos
+ max_pos
+ 1) / 2;
3638 /* restore the closest earlier saved state */
3640 lttv_state_restore(tcs
, closest_tree
);
3644 /* There is no saved state, yet we want to have it. Restart at T0 */
3646 restore_init_state(tcs
);
3647 lttv_process_trace_seek_time(&(tcs
->parent
), ltt_time_zero
);
3650 /* We want to seek quickly without restoring/updating the state */
3652 restore_init_state(tcs
);
3653 lttv_process_trace_seek_time(&(tcs
->parent
), t
);
3656 if(!call_rest
) g_info("NOT Calling restore");
3661 traceset_state_instance_init (GTypeInstance
*instance
, gpointer g_class
)
3667 traceset_state_finalize (LttvTracesetState
*self
)
3669 G_OBJECT_CLASS(g_type_class_peek(LTTV_TRACESET_CONTEXT_TYPE
))->
3670 finalize(G_OBJECT(self
));
3675 traceset_state_class_init (LttvTracesetContextClass
*klass
)
3677 GObjectClass
*gobject_class
= G_OBJECT_CLASS(klass
);
3679 gobject_class
->finalize
= (void (*)(GObject
*self
)) traceset_state_finalize
;
3680 klass
->init
= (void (*)(LttvTracesetContext
*self
, LttvTraceset
*ts
))init
;
3681 klass
->fini
= (void (*)(LttvTracesetContext
*self
))fini
;
3682 klass
->new_traceset_context
= new_traceset_context
;
3683 klass
->new_trace_context
= new_trace_context
;
3684 klass
->new_tracefile_context
= new_tracefile_context
;
3689 lttv_traceset_state_get_type(void)
3691 static GType type
= 0;
3693 static const GTypeInfo info
= {
3694 sizeof (LttvTracesetStateClass
),
3695 NULL
, /* base_init */
3696 NULL
, /* base_finalize */
3697 (GClassInitFunc
) traceset_state_class_init
, /* class_init */
3698 NULL
, /* class_finalize */
3699 NULL
, /* class_data */
3700 sizeof (LttvTracesetState
),
3701 0, /* n_preallocs */
3702 (GInstanceInitFunc
) traceset_state_instance_init
, /* instance_init */
3703 NULL
/* value handling */
3706 type
= g_type_register_static (LTTV_TRACESET_CONTEXT_TYPE
, "LttvTracesetStateType",
3714 trace_state_instance_init (GTypeInstance
*instance
, gpointer g_class
)
3720 trace_state_finalize (LttvTraceState
*self
)
3722 G_OBJECT_CLASS(g_type_class_peek(LTTV_TRACE_CONTEXT_TYPE
))->
3723 finalize(G_OBJECT(self
));
3728 trace_state_class_init (LttvTraceStateClass
*klass
)
3730 GObjectClass
*gobject_class
= G_OBJECT_CLASS(klass
);
3732 gobject_class
->finalize
= (void (*)(GObject
*self
)) trace_state_finalize
;
3733 klass
->state_save
= state_save
;
3734 klass
->state_restore
= state_restore
;
3735 klass
->state_saved_free
= state_saved_free
;
3740 lttv_trace_state_get_type(void)
3742 static GType type
= 0;
3744 static const GTypeInfo info
= {
3745 sizeof (LttvTraceStateClass
),
3746 NULL
, /* base_init */
3747 NULL
, /* base_finalize */
3748 (GClassInitFunc
) trace_state_class_init
, /* class_init */
3749 NULL
, /* class_finalize */
3750 NULL
, /* class_data */
3751 sizeof (LttvTraceState
),
3752 0, /* n_preallocs */
3753 (GInstanceInitFunc
) trace_state_instance_init
, /* instance_init */
3754 NULL
/* value handling */
3757 type
= g_type_register_static (LTTV_TRACE_CONTEXT_TYPE
,
3758 "LttvTraceStateType", &info
, 0);
3765 tracefile_state_instance_init (GTypeInstance
*instance
, gpointer g_class
)
3771 tracefile_state_finalize (LttvTracefileState
*self
)
3773 G_OBJECT_CLASS(g_type_class_peek(LTTV_TRACEFILE_CONTEXT_TYPE
))->
3774 finalize(G_OBJECT(self
));
3779 tracefile_state_class_init (LttvTracefileStateClass
*klass
)
3781 GObjectClass
*gobject_class
= G_OBJECT_CLASS(klass
);
3783 gobject_class
->finalize
= (void (*)(GObject
*self
)) tracefile_state_finalize
;
3788 lttv_tracefile_state_get_type(void)
3790 static GType type
= 0;
3792 static const GTypeInfo info
= {
3793 sizeof (LttvTracefileStateClass
),
3794 NULL
, /* base_init */
3795 NULL
, /* base_finalize */
3796 (GClassInitFunc
) tracefile_state_class_init
, /* class_init */
3797 NULL
, /* class_finalize */
3798 NULL
, /* class_data */
3799 sizeof (LttvTracefileState
),
3800 0, /* n_preallocs */
3801 (GInstanceInitFunc
) tracefile_state_instance_init
, /* instance_init */
3802 NULL
/* value handling */
3805 type
= g_type_register_static (LTTV_TRACEFILE_CONTEXT_TYPE
,
3806 "LttvTracefileStateType", &info
, 0);
3812 static void module_init()
3814 LTTV_STATE_UNNAMED
= g_quark_from_string("UNNAMED");
3815 LTTV_STATE_UNBRANDED
= g_quark_from_string("UNBRANDED");
3816 LTTV_STATE_MODE_UNKNOWN
= g_quark_from_string("MODE_UNKNOWN");
3817 LTTV_STATE_USER_MODE
= g_quark_from_string("USER_MODE");
3818 LTTV_STATE_SYSCALL
= g_quark_from_string("SYSCALL");
3819 LTTV_STATE_TRAP
= g_quark_from_string("TRAP");
3820 LTTV_STATE_IRQ
= g_quark_from_string("IRQ");
3821 LTTV_STATE_SOFT_IRQ
= g_quark_from_string("SOFTIRQ");
3822 LTTV_STATE_SUBMODE_UNKNOWN
= g_quark_from_string("UNKNOWN");
3823 LTTV_STATE_SUBMODE_NONE
= g_quark_from_string("NONE");
3824 LTTV_STATE_WAIT_FORK
= g_quark_from_string("WAIT_FORK");
3825 LTTV_STATE_WAIT_CPU
= g_quark_from_string("WAIT_CPU");
3826 LTTV_STATE_EXIT
= g_quark_from_string("EXIT");
3827 LTTV_STATE_ZOMBIE
= g_quark_from_string("ZOMBIE");
3828 LTTV_STATE_WAIT
= g_quark_from_string("WAIT");
3829 LTTV_STATE_RUN
= g_quark_from_string("RUN");
3830 LTTV_STATE_DEAD
= g_quark_from_string("DEAD");
3831 LTTV_STATE_USER_THREAD
= g_quark_from_string("USER_THREAD");
3832 LTTV_STATE_KERNEL_THREAD
= g_quark_from_string("KERNEL_THREAD");
3833 LTTV_STATE_TRACEFILES
= g_quark_from_string("tracefiles");
3834 LTTV_STATE_PROCESSES
= g_quark_from_string("processes");
3835 LTTV_STATE_PROCESS
= g_quark_from_string("process");
3836 LTTV_STATE_RUNNING_PROCESS
= g_quark_from_string("running_process");
3837 LTTV_STATE_EVENT
= g_quark_from_string("event");
3838 LTTV_STATE_SAVED_STATES
= g_quark_from_string("saved states");
3839 LTTV_STATE_SAVED_STATES_TIME
= g_quark_from_string("saved states time");
3840 LTTV_STATE_TIME
= g_quark_from_string("time");
3841 LTTV_STATE_HOOKS
= g_quark_from_string("saved state hooks");
3842 LTTV_STATE_NAME_TABLES
= g_quark_from_string("name tables");
3843 LTTV_STATE_TRACE_STATE_USE_COUNT
=
3844 g_quark_from_string("trace_state_use_count");
3845 LTTV_STATE_RESOURCE_CPUS
= g_quark_from_string("cpu resource states");
3846 LTTV_STATE_RESOURCE_IRQS
= g_quark_from_string("irq resource states");
3847 LTTV_STATE_RESOURCE_BLKDEVS
= g_quark_from_string("blkdevs resource states");
3850 LTT_FACILITY_KERNEL
= g_quark_from_string("kernel");
3851 LTT_FACILITY_KERNEL_ARCH
= g_quark_from_string("kernel_arch");
3852 LTT_FACILITY_FS
= g_quark_from_string("fs");
3853 LTT_FACILITY_LIST
= g_quark_from_string("list");
3854 LTT_FACILITY_USER_GENERIC
= g_quark_from_string("user_generic");
3855 LTT_FACILITY_BLOCK
= g_quark_from_string("block");
3858 LTT_EVENT_SYSCALL_ENTRY
= g_quark_from_string("syscall_entry");
3859 LTT_EVENT_SYSCALL_EXIT
= g_quark_from_string("syscall_exit");
3860 LTT_EVENT_TRAP_ENTRY
= g_quark_from_string("trap_entry");
3861 LTT_EVENT_TRAP_EXIT
= g_quark_from_string("trap_exit");
3862 LTT_EVENT_IRQ_ENTRY
= g_quark_from_string("irq_entry");
3863 LTT_EVENT_IRQ_EXIT
= g_quark_from_string("irq_exit");
3864 LTT_EVENT_SOFT_IRQ_ENTRY
= g_quark_from_string("soft_irq_entry");
3865 LTT_EVENT_SOFT_IRQ_EXIT
= g_quark_from_string("soft_irq_exit");
3866 LTT_EVENT_SCHED_SCHEDULE
= g_quark_from_string("sched_schedule");
3867 LTT_EVENT_PROCESS_FORK
= g_quark_from_string("process_fork");
3868 LTT_EVENT_KTHREAD_CREATE
= g_quark_from_string("kthread_create");
3869 LTT_EVENT_PROCESS_EXIT
= g_quark_from_string("process_exit");
3870 LTT_EVENT_PROCESS_FREE
= g_quark_from_string("process_free");
3871 LTT_EVENT_EXEC
= g_quark_from_string("exec");
3872 LTT_EVENT_PROCESS_STATE
= g_quark_from_string("process_state");
3873 LTT_EVENT_STATEDUMP_END
= g_quark_from_string("statedump_end");
3874 LTT_EVENT_FUNCTION_ENTRY
= g_quark_from_string("function_entry");
3875 LTT_EVENT_FUNCTION_EXIT
= g_quark_from_string("function_exit");
3876 LTT_EVENT_THREAD_BRAND
= g_quark_from_string("thread_brand");
3877 LTT_EVENT_REQUEST_ISSUE
= g_quark_from_string("_blk_request_issue");
3878 LTT_EVENT_REQUEST_COMPLETE
= g_quark_from_string("_blk_request_complete");
3879 LTT_EVENT_LIST_INTERRUPT
= g_quark_from_string("interrupt");;
3882 LTT_FIELD_SYSCALL_ID
= g_quark_from_string("syscall_id");
3883 LTT_FIELD_TRAP_ID
= g_quark_from_string("trap_id");
3884 LTT_FIELD_IRQ_ID
= g_quark_from_string("irq_id");
3885 LTT_FIELD_SOFT_IRQ_ID
= g_quark_from_string("softirq_id");
3886 LTT_FIELD_PREV_PID
= g_quark_from_string("prev_pid");
3887 LTT_FIELD_NEXT_PID
= g_quark_from_string("next_pid");
3888 LTT_FIELD_PREV_STATE
= g_quark_from_string("prev_state");
3889 LTT_FIELD_PARENT_PID
= g_quark_from_string("parent_pid");
3890 LTT_FIELD_CHILD_PID
= g_quark_from_string("child_pid");
3891 LTT_FIELD_PID
= g_quark_from_string("pid");
3892 LTT_FIELD_TGID
= g_quark_from_string("tgid");
3893 LTT_FIELD_CHILD_TGID
= g_quark_from_string("child_tgid");
3894 LTT_FIELD_FILENAME
= g_quark_from_string("filename");
3895 LTT_FIELD_NAME
= g_quark_from_string("name");
3896 LTT_FIELD_TYPE
= g_quark_from_string("type");
3897 LTT_FIELD_MODE
= g_quark_from_string("mode");
3898 LTT_FIELD_SUBMODE
= g_quark_from_string("submode");
3899 LTT_FIELD_STATUS
= g_quark_from_string("status");
3900 LTT_FIELD_THIS_FN
= g_quark_from_string("this_fn");
3901 LTT_FIELD_CALL_SITE
= g_quark_from_string("call_site");
3902 LTT_FIELD_MAJOR
= g_quark_from_string("major");
3903 LTT_FIELD_MINOR
= g_quark_from_string("minor");
3904 LTT_FIELD_OPERATION
= g_quark_from_string("direction");
3905 LTT_FIELD_ACTION
= g_quark_from_string("action");
3906 LTT_FIELD_NUM
= g_quark_from_string("num");
3908 LTTV_CPU_UNKNOWN
= g_quark_from_string("unknown");
3909 LTTV_CPU_IDLE
= g_quark_from_string("idle");
3910 LTTV_CPU_BUSY
= g_quark_from_string("busy");
3911 LTTV_CPU_IRQ
= g_quark_from_string("irq");
3912 LTTV_CPU_TRAP
= g_quark_from_string("trap");
3914 LTTV_IRQ_UNKNOWN
= g_quark_from_string("unknown");
3915 LTTV_IRQ_IDLE
= g_quark_from_string("idle");
3916 LTTV_IRQ_BUSY
= g_quark_from_string("busy");
3918 LTTV_BDEV_UNKNOWN
= g_quark_from_string("unknown");
3919 LTTV_BDEV_IDLE
= g_quark_from_string("idle");
3920 LTTV_BDEV_BUSY_READING
= g_quark_from_string("busy_reading");
3921 LTTV_BDEV_BUSY_WRITING
= g_quark_from_string("busy_writing");
3924 static void module_destroy()
3929 LTTV_MODULE("state", "State computation", \
3930 "Update the system state, possibly saving it at intervals", \
3931 module_init
, module_destroy
)