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
);
200 void lttv_state_save(LttvTraceState
*self
, LttvAttribute
*container
)
202 LTTV_TRACE_STATE_GET_CLASS(self
)->state_save(self
, container
);
206 void lttv_state_restore(LttvTraceState
*self
, LttvAttribute
*container
)
208 LTTV_TRACE_STATE_GET_CLASS(self
)->state_restore(self
, container
);
212 void lttv_state_state_saved_free(LttvTraceState
*self
,
213 LttvAttribute
*container
)
215 LTTV_TRACE_STATE_GET_CLASS(self
)->state_saved_free(self
, container
);
219 guint
process_hash(gconstpointer key
)
221 guint pid
= ((const LttvProcessState
*)key
)->pid
;
222 return (pid
>>8 ^ pid
>>4 ^ pid
>>2 ^ pid
) ;
226 /* If the hash table hash function is well distributed,
227 * the process_equal should compare different pid */
228 gboolean
process_equal(gconstpointer a
, gconstpointer b
)
230 const LttvProcessState
*process_a
, *process_b
;
233 process_a
= (const LttvProcessState
*)a
;
234 process_b
= (const LttvProcessState
*)b
;
236 if(likely(process_a
->pid
!= process_b
->pid
)) ret
= FALSE
;
237 else if(likely(process_a
->pid
== 0 &&
238 process_a
->cpu
!= process_b
->cpu
)) ret
= FALSE
;
243 static void delete_usertrace(gpointer key
, gpointer value
, gpointer user_data
)
245 g_tree_destroy((GTree
*)value
);
248 static void lttv_state_free_usertraces(GHashTable
*usertraces
)
250 g_hash_table_foreach(usertraces
, delete_usertrace
, NULL
);
251 g_hash_table_destroy(usertraces
);
257 restore_init_state(LttvTraceState
*self
)
259 guint i
, nb_cpus
, nb_irqs
;
261 //LttvTracefileState *tfcs;
263 LttTime start_time
, end_time
;
265 /* Free the process tables */
266 if(self
->processes
!= NULL
) lttv_state_free_process_table(self
->processes
);
267 if(self
->usertraces
!= NULL
) lttv_state_free_usertraces(self
->usertraces
);
268 self
->processes
= g_hash_table_new(process_hash
, process_equal
);
269 self
->usertraces
= g_hash_table_new(g_direct_hash
, g_direct_equal
);
272 /* Seek time to beginning */
273 // Mathieu : fix : don't seek traceset here : causes inconsistency in seek
274 // closest. It's the tracecontext job to seek the trace to the beginning
275 // anyway : the init state might be used at the middle of the trace as well...
276 //g_tree_destroy(self->parent.ts_context->pqueue);
277 //self->parent.ts_context->pqueue = g_tree_new(compare_tracefile);
279 ltt_trace_time_span_get(self
->parent
.t
, &start_time
, &end_time
);
281 //lttv_process_trace_seek_time(&self->parent, ltt_time_zero);
283 nb_cpus
= ltt_trace_get_num_cpu(self
->parent
.t
);
284 nb_irqs
= self
->nb_irqs
;
286 /* Put the per cpu running_process to beginning state : process 0. */
287 for(i
=0; i
< nb_cpus
; i
++) {
288 LttvExecutionState
*es
;
289 self
->running_process
[i
] = lttv_state_create_process(self
, NULL
, i
, 0, 0,
290 LTTV_STATE_UNNAMED
, &start_time
);
291 /* We are not sure is it's a kernel thread or normal thread, put the
292 * bottom stack state to unknown */
293 self
->running_process
[i
]->execution_stack
=
294 g_array_set_size(self
->running_process
[i
]->execution_stack
, 1);
295 es
= self
->running_process
[i
]->state
=
296 &g_array_index(self
->running_process
[i
]->execution_stack
,
297 LttvExecutionState
, 0);
298 es
->t
= LTTV_STATE_MODE_UNKNOWN
;
299 es
->s
= LTTV_STATE_UNNAMED
;
301 //self->running_process[i]->state->s = LTTV_STATE_RUN;
302 self
->running_process
[i
]->cpu
= i
;
304 /* reset cpu states */
305 if(self
->cpu_states
[i
].mode_stack
->len
> 0)
306 g_array_remove_range(self
->cpu_states
[i
].mode_stack
, 0, self
->cpu_states
[i
].mode_stack
->len
);
309 /* reset irq states */
310 for(i
=0; i
<nb_irqs
; i
++) {
311 if(self
->irq_states
[i
].mode_stack
->len
> 0)
312 g_array_remove_range(self
->irq_states
[i
].mode_stack
, 0, self
->irq_states
[i
].mode_stack
->len
);
315 /* reset bdev states */
316 g_hash_table_foreach(self
->bdev_states
, bdevstate_free_cb
, NULL
);
317 g_hash_table_steal_all(self
->bdev_states
);
320 nb_tracefile
= self
->parent
.tracefiles
->len
;
322 for(i
= 0 ; i
< nb_tracefile
; i
++) {
324 LTTV_TRACEFILE_STATE(g_array_index(self
->parent
.tracefiles
,
325 LttvTracefileContext
*, i
));
326 ltt_trace_time_span_get(self
->parent
.t
, &tfcs
->parent
.timestamp
, NULL
);
327 // tfcs->saved_position = 0;
328 tfcs
->process
= lttv_state_create_process(tfcs
, NULL
,0);
329 tfcs
->process
->state
->s
= LTTV_STATE_RUN
;
330 tfcs
->process
->last_cpu
= tfcs
->cpu_name
;
331 tfcs
->process
->last_cpu_index
= ltt_tracefile_num(((LttvTracefileContext
*)tfcs
)->tf
);
336 //static LttTime time_zero = {0,0};
338 static gint
compare_usertraces(gconstpointer a
, gconstpointer b
,
341 const LttTime
*t1
= (const LttTime
*)a
;
342 const LttTime
*t2
= (const LttTime
*)b
;
344 return ltt_time_compare(*t1
, *t2
);
347 static void free_usertrace_key(gpointer data
)
352 #define MAX_STRING_LEN 4096
355 state_load_saved_states(LttvTraceState
*tcs
)
358 GPtrArray
*quarktable
;
359 const char *trace_path
;
363 tcs
->has_precomputed_states
= FALSE
;
367 gchar buf
[MAX_STRING_LEN
];
370 trace_path
= g_quark_to_string(ltt_trace_name(tcs
->parent
.t
));
371 strncpy(path
, trace_path
, PATH_MAX
-1);
372 count
= strnlen(trace_path
, PATH_MAX
-1);
373 // quarktable : open, test
374 strncat(path
, "/precomputed/quarktable", PATH_MAX
-count
-1);
375 fp
= fopen(path
, "r");
377 quarktable
= g_ptr_array_sized_new(4096);
379 /* Index 0 is null */
381 if(hdr
== EOF
) return;
382 g_assert(hdr
== HDR_QUARKS
);
386 if(hdr
== EOF
) break;
387 g_assert(hdr
== HDR_QUARK
);
388 g_ptr_array_set_size(quarktable
, q
+1);
391 fread(&buf
[i
], sizeof(gchar
), 1, fp
);
392 if(buf
[i
] == '\0' || feof(fp
)) break;
395 len
= strnlen(buf
, MAX_STRING_LEN
-1);
396 g_ptr_array_index (quarktable
, q
) = g_new(gchar
, len
+1);
397 strncpy(g_ptr_array_index (quarktable
, q
), buf
, len
+1);
403 // saved_states : open, test
404 strncpy(path
, trace_path
, PATH_MAX
-1);
405 count
= strnlen(trace_path
, PATH_MAX
-1);
406 strncat(path
, "/precomputed/states", PATH_MAX
-count
-1);
407 fp
= fopen(path
, "r");
411 if(hdr
!= HDR_TRACE
) goto end
;
413 lttv_trace_states_read_raw(tcs
, fp
, quarktable
);
415 tcs
->has_precomputed_states
= TRUE
;
420 /* Free the quarktable */
421 for(i
=0; i
<quarktable
->len
; i
++) {
422 string
= g_ptr_array_index (quarktable
, i
);
425 g_ptr_array_free(quarktable
, TRUE
);
430 init(LttvTracesetState
*self
, LttvTraceset
*ts
)
432 guint i
, j
, nb_trace
, nb_tracefile
, nb_cpu
;
435 LttvTraceContext
*tc
;
439 LttvTracefileState
*tfcs
;
441 LttvAttributeValue v
;
443 LTTV_TRACESET_CONTEXT_CLASS(g_type_class_peek(LTTV_TRACESET_CONTEXT_TYPE
))->
444 init((LttvTracesetContext
*)self
, ts
);
446 nb_trace
= lttv_traceset_number(ts
);
447 for(i
= 0 ; i
< nb_trace
; i
++) {
448 tc
= self
->parent
.traces
[i
];
449 tcs
= LTTV_TRACE_STATE(tc
);
450 tcs
->save_interval
= LTTV_STATE_SAVE_INTERVAL
;
451 lttv_attribute_find(tcs
->parent
.t_a
, LTTV_STATE_TRACE_STATE_USE_COUNT
,
455 if(*(v
.v_uint
) == 1) {
456 create_name_tables(tcs
);
457 create_max_time(tcs
);
459 get_name_tables(tcs
);
462 nb_tracefile
= tc
->tracefiles
->len
;
463 nb_cpu
= ltt_trace_get_num_cpu(tc
->t
);
464 nb_irq
= tcs
->nb_irqs
;
465 tcs
->processes
= NULL
;
466 tcs
->usertraces
= NULL
;
467 tcs
->running_process
= g_new(LttvProcessState
*, nb_cpu
);
469 /* init cpu resource stuff */
470 tcs
->cpu_states
= g_new(LttvCPUState
, nb_cpu
);
471 for(j
= 0; j
<nb_cpu
; j
++) {
472 tcs
->cpu_states
[j
].mode_stack
= g_array_new(FALSE
, FALSE
, sizeof(LttvCPUMode
));
473 g_assert(tcs
->cpu_states
[j
].mode_stack
!= NULL
);
476 /* init irq resource stuff */
477 tcs
->irq_states
= g_new(LttvIRQState
, nb_irq
);
478 for(j
= 0; j
<nb_irq
; j
++) {
479 tcs
->irq_states
[j
].mode_stack
= g_array_new(FALSE
, FALSE
, sizeof(LttvIRQMode
));
480 g_assert(tcs
->irq_states
[j
].mode_stack
!= NULL
);
483 /* init bdev resource stuff */
484 tcs
->bdev_states
= g_hash_table_new(g_int_hash
, g_int_equal
);
486 restore_init_state(tcs
);
487 for(j
= 0 ; j
< nb_tracefile
; j
++) {
489 LTTV_TRACEFILE_STATE(g_array_index(tc
->tracefiles
,
490 LttvTracefileContext
*, j
));
491 tfcs
->tracefile_name
= ltt_tracefile_name(tfcs
->parent
.tf
);
492 tfcs
->cpu
= ltt_tracefile_cpu(tfcs
->parent
.tf
);
493 tfcs
->cpu_state
= &(tcs
->cpu_states
[tfcs
->cpu
]);
494 if(ltt_tracefile_tid(tfcs
->parent
.tf
) != 0) {
495 /* It's a Usertrace */
496 guint tid
= ltt_tracefile_tid(tfcs
->parent
.tf
);
497 GTree
*usertrace_tree
= (GTree
*)g_hash_table_lookup(tcs
->usertraces
,
499 if(!usertrace_tree
) {
500 usertrace_tree
= g_tree_new_full(compare_usertraces
,
501 NULL
, free_usertrace_key
, NULL
);
502 g_hash_table_insert(tcs
->usertraces
,
503 (gpointer
)tid
, usertrace_tree
);
505 LttTime
*timestamp
= g_new(LttTime
, 1);
506 *timestamp
= ltt_interpolate_time_from_tsc(tfcs
->parent
.tf
,
507 ltt_tracefile_creation(tfcs
->parent
.tf
));
508 g_tree_insert(usertrace_tree
, timestamp
, tfcs
);
512 /* See if the trace has saved states */
513 state_load_saved_states(tcs
);
518 fini(LttvTracesetState
*self
)
524 //LttvTracefileState *tfcs;
526 LttvAttributeValue v
;
528 nb_trace
= lttv_traceset_number(LTTV_TRACESET_CONTEXT(self
)->ts
);
529 for(i
= 0 ; i
< nb_trace
; i
++) {
530 tcs
= (LttvTraceState
*)(LTTV_TRACESET_CONTEXT(self
)->traces
[i
]);
531 lttv_attribute_find(tcs
->parent
.t_a
, LTTV_STATE_TRACE_STATE_USE_COUNT
,
534 g_assert(*(v
.v_uint
) != 0);
537 if(*(v
.v_uint
) == 0) {
538 free_name_tables(tcs
);
540 free_saved_state(tcs
);
542 g_free(tcs
->running_process
);
543 tcs
->running_process
= NULL
;
544 lttv_state_free_process_table(tcs
->processes
);
545 lttv_state_free_usertraces(tcs
->usertraces
);
546 tcs
->processes
= NULL
;
547 tcs
->usertraces
= NULL
;
549 LTTV_TRACESET_CONTEXT_CLASS(g_type_class_peek(LTTV_TRACESET_CONTEXT_TYPE
))->
550 fini((LttvTracesetContext
*)self
);
554 static LttvTracesetContext
*
555 new_traceset_context(LttvTracesetContext
*self
)
557 return LTTV_TRACESET_CONTEXT(g_object_new(LTTV_TRACESET_STATE_TYPE
, NULL
));
561 static LttvTraceContext
*
562 new_trace_context(LttvTracesetContext
*self
)
564 return LTTV_TRACE_CONTEXT(g_object_new(LTTV_TRACE_STATE_TYPE
, NULL
));
568 static LttvTracefileContext
*
569 new_tracefile_context(LttvTracesetContext
*self
)
571 return LTTV_TRACEFILE_CONTEXT(g_object_new(LTTV_TRACEFILE_STATE_TYPE
, NULL
));
575 /* Write the process state of the trace */
577 static void write_process_state(gpointer key
, gpointer value
,
580 LttvProcessState
*process
;
582 LttvExecutionState
*es
;
584 FILE *fp
= (FILE *)user_data
;
589 process
= (LttvProcessState
*)value
;
591 " <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",
592 process
, process
->pid
, process
->tgid
, process
->ppid
,
593 g_quark_to_string(process
->type
),
594 process
->creation_time
.tv_sec
,
595 process
->creation_time
.tv_nsec
,
596 process
->insertion_time
.tv_sec
,
597 process
->insertion_time
.tv_nsec
,
598 g_quark_to_string(process
->name
),
599 g_quark_to_string(process
->brand
),
602 for(i
= 0 ; i
< process
->execution_stack
->len
; i
++) {
603 es
= &g_array_index(process
->execution_stack
, LttvExecutionState
, i
);
604 fprintf(fp
, " <ES MODE=\"%s\" SUBMODE=\"%s\" ENTRY_S=%lu ENTRY_NS=%lu",
605 g_quark_to_string(es
->t
), g_quark_to_string(es
->n
),
606 es
->entry
.tv_sec
, es
->entry
.tv_nsec
);
607 fprintf(fp
, " CHANGE_S=%lu CHANGE_NS=%lu STATUS=\"%s\"/>\n",
608 es
->change
.tv_sec
, es
->change
.tv_nsec
, g_quark_to_string(es
->s
));
611 for(i
= 0 ; i
< process
->user_stack
->len
; i
++) {
612 address
= g_array_index(process
->user_stack
, guint64
, i
);
613 fprintf(fp
, " <USER_STACK ADDRESS=\"%llu\"/>\n",
617 if(process
->usertrace
) {
618 fprintf(fp
, " <USERTRACE NAME=\"%s\" CPU=%u\n/>",
619 g_quark_to_string(process
->usertrace
->tracefile_name
),
620 process
->usertrace
->cpu
);
624 fprintf(fp
, " </PROCESS>\n");
628 void lttv_state_write(LttvTraceState
*self
, LttTime t
, FILE *fp
)
630 guint i
, nb_tracefile
, nb_block
, offset
;
633 LttvTracefileState
*tfcs
;
637 LttEventPosition
*ep
;
641 ep
= ltt_event_position_new();
643 fprintf(fp
,"<PROCESS_STATE TIME_S=%lu TIME_NS=%lu>\n", t
.tv_sec
, t
.tv_nsec
);
645 g_hash_table_foreach(self
->processes
, write_process_state
, fp
);
647 nb_cpus
= ltt_trace_get_num_cpu(self
->parent
.t
);
648 for(i
=0;i
<nb_cpus
;i
++) {
649 fprintf(fp
," <CPU NUM=%u RUNNING_PROCESS=%u>\n",
650 i
, self
->running_process
[i
]->pid
);
653 nb_tracefile
= self
->parent
.tracefiles
->len
;
655 for(i
= 0 ; i
< nb_tracefile
; i
++) {
657 LTTV_TRACEFILE_STATE(g_array_index(self
->parent
.tracefiles
,
658 LttvTracefileContext
*, i
));
659 fprintf(fp
, " <TRACEFILE TIMESTAMP_S=%lu TIMESTAMP_NS=%lu",
660 tfcs
->parent
.timestamp
.tv_sec
,
661 tfcs
->parent
.timestamp
.tv_nsec
);
662 LttEvent
*e
= ltt_tracefile_get_event(tfcs
->parent
.tf
);
663 if(e
== NULL
) fprintf(fp
,"/>\n");
665 ltt_event_position(e
, ep
);
666 ltt_event_position_get(ep
, &tf
, &nb_block
, &offset
, &tsc
);
667 fprintf(fp
, " BLOCK=%u OFFSET=%u TSC=%llu/>\n", nb_block
, offset
,
672 fprintf(fp
,"</PROCESS_STATE>\n");
676 static void write_process_state_raw(gpointer key
, gpointer value
,
679 LttvProcessState
*process
;
681 LttvExecutionState
*es
;
683 FILE *fp
= (FILE *)user_data
;
688 process
= (LttvProcessState
*)value
;
689 fputc(HDR_PROCESS
, fp
);
690 //fwrite(&header, sizeof(header), 1, fp);
691 //fprintf(fp, "%s", g_quark_to_string(process->type));
693 fwrite(&process
->type
, sizeof(process
->type
), 1, fp
);
694 //fprintf(fp, "%s", g_quark_to_string(process->name));
696 fwrite(&process
->name
, sizeof(process
->name
), 1, fp
);
697 //fprintf(fp, "%s", g_quark_to_string(process->brand));
699 fwrite(&process
->brand
, sizeof(process
->brand
), 1, fp
);
700 fwrite(&process
->pid
, sizeof(process
->pid
), 1, fp
);
701 fwrite(&process
->tgid
, sizeof(process
->tgid
), 1, fp
);
702 fwrite(&process
->ppid
, sizeof(process
->ppid
), 1, fp
);
703 fwrite(&process
->cpu
, sizeof(process
->cpu
), 1, fp
);
704 fwrite(&process
->creation_time
, sizeof(process
->creation_time
), 1, fp
);
705 fwrite(&process
->insertion_time
, sizeof(process
->insertion_time
), 1, fp
);
709 " <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",
710 process
, process
->pid
, process
->tgid
, process
->ppid
,
711 g_quark_to_string(process
->type
),
712 process
->creation_time
.tv_sec
,
713 process
->creation_time
.tv_nsec
,
714 process
->insertion_time
.tv_sec
,
715 process
->insertion_time
.tv_nsec
,
716 g_quark_to_string(process
->name
),
717 g_quark_to_string(process
->brand
),
721 for(i
= 0 ; i
< process
->execution_stack
->len
; i
++) {
722 es
= &g_array_index(process
->execution_stack
, LttvExecutionState
, i
);
725 //fprintf(fp, "%s", g_quark_to_string(es->t));
727 fwrite(&es
->t
, sizeof(es
->t
), 1, fp
);
728 //fprintf(fp, "%s", g_quark_to_string(es->n));
730 fwrite(&es
->n
, sizeof(es
->n
), 1, fp
);
731 //fprintf(fp, "%s", g_quark_to_string(es->s));
733 fwrite(&es
->s
, sizeof(es
->s
), 1, fp
);
734 fwrite(&es
->entry
, sizeof(es
->entry
), 1, fp
);
735 fwrite(&es
->change
, sizeof(es
->change
), 1, fp
);
736 fwrite(&es
->cum_cpu_time
, sizeof(es
->cum_cpu_time
), 1, fp
);
738 fprintf(fp
, " <ES MODE=\"%s\" SUBMODE=\"%s\" ENTRY_S=%lu ENTRY_NS=%lu",
739 g_quark_to_string(es
->t
), g_quark_to_string(es
->n
),
740 es
->entry
.tv_sec
, es
->entry
.tv_nsec
);
741 fprintf(fp
, " CHANGE_S=%lu CHANGE_NS=%lu STATUS=\"%s\"/>\n",
742 es
->change
.tv_sec
, es
->change
.tv_nsec
, g_quark_to_string(es
->s
));
746 for(i
= 0 ; i
< process
->user_stack
->len
; i
++) {
747 address
= g_array_index(process
->user_stack
, guint64
, i
);
748 fputc(HDR_USER_STACK
, fp
);
749 fwrite(&address
, sizeof(address
), 1, fp
);
751 fprintf(fp
, " <USER_STACK ADDRESS=\"%llu\"/>\n",
756 if(process
->usertrace
) {
757 fputc(HDR_USERTRACE
, fp
);
758 //fprintf(fp, "%s", g_quark_to_string(process->usertrace->tracefile_name));
760 fwrite(&process
->usertrace
->tracefile_name
,
761 sizeof(process
->usertrace
->tracefile_name
), 1, fp
);
762 fwrite(&process
->usertrace
->cpu
, sizeof(process
->usertrace
->cpu
), 1, fp
);
764 fprintf(fp
, " <USERTRACE NAME=\"%s\" CPU=%u\n/>",
765 g_quark_to_string(process
->usertrace
->tracefile_name
),
766 process
->usertrace
->cpu
);
773 void lttv_state_write_raw(LttvTraceState
*self
, LttTime t
, FILE *fp
)
775 guint i
, nb_tracefile
, nb_block
, offset
;
778 LttvTracefileState
*tfcs
;
782 LttEventPosition
*ep
;
786 ep
= ltt_event_position_new();
788 //fprintf(fp,"<PROCESS_STATE TIME_S=%lu TIME_NS=%lu>\n", t.tv_sec, t.tv_nsec);
789 fputc(HDR_PROCESS_STATE
, fp
);
790 fwrite(&t
, sizeof(t
), 1, fp
);
792 g_hash_table_foreach(self
->processes
, write_process_state_raw
, fp
);
794 nb_cpus
= ltt_trace_get_num_cpu(self
->parent
.t
);
795 for(i
=0;i
<nb_cpus
;i
++) {
797 fwrite(&i
, sizeof(i
), 1, fp
); /* cpu number */
798 fwrite(&self
->running_process
[i
]->pid
,
799 sizeof(self
->running_process
[i
]->pid
), 1, fp
);
800 //fprintf(fp," <CPU NUM=%u RUNNING_PROCESS=%u>\n",
801 // i, self->running_process[i]->pid);
804 nb_tracefile
= self
->parent
.tracefiles
->len
;
806 for(i
= 0 ; i
< nb_tracefile
; i
++) {
808 LTTV_TRACEFILE_STATE(g_array_index(self
->parent
.tracefiles
,
809 LttvTracefileContext
*, i
));
810 // fprintf(fp, " <TRACEFILE TIMESTAMP_S=%lu TIMESTAMP_NS=%lu",
811 // tfcs->parent.timestamp.tv_sec,
812 // tfcs->parent.timestamp.tv_nsec);
813 fputc(HDR_TRACEFILE
, fp
);
814 fwrite(&tfcs
->parent
.timestamp
, sizeof(tfcs
->parent
.timestamp
), 1, fp
);
815 /* Note : if timestamp if LTT_TIME_INFINITE, there will be no
816 * position following : end of trace */
817 LttEvent
*e
= ltt_tracefile_get_event(tfcs
->parent
.tf
);
819 ltt_event_position(e
, ep
);
820 ltt_event_position_get(ep
, &tf
, &nb_block
, &offset
, &tsc
);
821 //fprintf(fp, " BLOCK=%u OFFSET=%u TSC=%llu/>\n", nb_block, offset,
823 fwrite(&nb_block
, sizeof(nb_block
), 1, fp
);
824 fwrite(&offset
, sizeof(offset
), 1, fp
);
825 fwrite(&tsc
, sizeof(tsc
), 1, fp
);
832 /* Read process state from a file */
834 /* Called because a HDR_PROCESS was found */
835 static void read_process_state_raw(LttvTraceState
*self
, FILE *fp
,
836 GPtrArray
*quarktable
)
838 LttvExecutionState
*es
;
839 LttvProcessState
*process
, *parent_process
;
840 LttvProcessState tmp
;
845 /* TODO : check return value */
846 fread(&tmp
.type
, sizeof(tmp
.type
), 1, fp
);
847 fread(&tmp
.name
, sizeof(tmp
.name
), 1, fp
);
848 fread(&tmp
.brand
, sizeof(tmp
.brand
), 1, fp
);
849 fread(&tmp
.pid
, sizeof(tmp
.pid
), 1, fp
);
850 fread(&tmp
.tgid
, sizeof(tmp
.tgid
), 1, fp
);
851 fread(&tmp
.ppid
, sizeof(tmp
.ppid
), 1, fp
);
852 fread(&tmp
.cpu
, sizeof(tmp
.cpu
), 1, fp
);
853 fread(&tmp
.creation_time
, sizeof(tmp
.creation_time
), 1, fp
);
854 fread(&tmp
.insertion_time
, sizeof(tmp
.insertion_time
), 1, fp
);
857 process
= lttv_state_find_process(self
, tmp
.cpu
, tmp
.pid
);
859 /* We must link to the parent */
860 parent_process
= lttv_state_find_process_or_create(self
, ANY_CPU
, tmp
.ppid
,
862 process
= lttv_state_find_process(self
, ANY_CPU
, tmp
.pid
);
863 if(process
== NULL
) {
864 process
= lttv_state_create_process(self
, parent_process
, tmp
.cpu
,
866 g_quark_from_string((gchar
*)g_ptr_array_index(quarktable
, tmp
.name
)),
870 process
->insertion_time
= tmp
.insertion_time
;
871 process
->creation_time
= tmp
.creation_time
;
872 process
->type
= g_quark_from_string(
873 (gchar
*)g_ptr_array_index(quarktable
, tmp
.type
));
874 process
->tgid
= tmp
.tgid
;
875 process
->ppid
= tmp
.ppid
;
876 process
->brand
= g_quark_from_string(
877 (gchar
*)g_ptr_array_index(quarktable
, tmp
.brand
));
879 g_quark_from_string((gchar
*)g_ptr_array_index(quarktable
, tmp
.name
));
883 if(feof(fp
) || ferror(fp
)) goto end_loop
;
885 gint hdr
= fgetc(fp
);
886 if(hdr
== EOF
) goto end_loop
;
890 process
->execution_stack
=
891 g_array_set_size(process
->execution_stack
,
892 process
->execution_stack
->len
+ 1);
893 es
= &g_array_index(process
->execution_stack
, LttvExecutionState
,
894 process
->execution_stack
->len
-1);
897 fread(&es
->t
, sizeof(es
->t
), 1, fp
);
898 es
->t
= g_quark_from_string(
899 (gchar
*)g_ptr_array_index(quarktable
, es
->t
));
900 fread(&es
->n
, sizeof(es
->n
), 1, fp
);
901 es
->n
= g_quark_from_string(
902 (gchar
*)g_ptr_array_index(quarktable
, es
->n
));
903 fread(&es
->s
, sizeof(es
->s
), 1, fp
);
904 es
->s
= g_quark_from_string(
905 (gchar
*)g_ptr_array_index(quarktable
, es
->s
));
906 fread(&es
->entry
, sizeof(es
->entry
), 1, fp
);
907 fread(&es
->change
, sizeof(es
->change
), 1, fp
);
908 fread(&es
->cum_cpu_time
, sizeof(es
->cum_cpu_time
), 1, fp
);
911 process
->user_stack
= g_array_set_size(process
->user_stack
,
912 process
->user_stack
->len
+ 1);
913 address
= &g_array_index(process
->user_stack
, guint64
,
914 process
->user_stack
->len
-1);
915 fread(address
, sizeof(address
), 1, fp
);
916 process
->current_function
= *address
;
919 fread(&tmpq
, sizeof(tmpq
), 1, fp
);
920 fread(&process
->usertrace
->cpu
, sizeof(process
->usertrace
->cpu
), 1, fp
);
932 /* Called because a HDR_PROCESS_STATE was found */
933 /* Append a saved state to the trace states */
934 void lttv_state_read_raw(LttvTraceState
*self
, FILE *fp
, GPtrArray
*quarktable
)
936 guint i
, nb_tracefile
, nb_block
, offset
;
938 LttvTracefileState
*tfcs
;
940 LttEventPosition
*ep
;
948 LttvAttribute
*saved_states_tree
, *saved_state_tree
;
950 LttvAttributeValue value
;
951 GTree
*pqueue
= self
->parent
.ts_context
->pqueue
;
952 ep
= ltt_event_position_new();
954 restore_init_state(self
);
956 fread(&t
, sizeof(t
), 1, fp
);
959 if(feof(fp
) || ferror(fp
)) goto end_loop
;
961 if(hdr
== EOF
) goto end_loop
;
965 /* Call read_process_state_raw */
966 read_process_state_raw(self
, fp
, quarktable
);
976 case HDR_PROCESS_STATE
:
982 g_error("Error while parsing saved state file : unknown data header %d",
988 nb_cpus
= ltt_trace_get_num_cpu(self
->parent
.t
);
989 for(i
=0;i
<nb_cpus
;i
++) {
992 g_assert(hdr
== HDR_CPU
);
993 fread(&cpu_num
, sizeof(cpu_num
), 1, fp
); /* cpu number */
994 g_assert(i
== cpu_num
);
995 fread(&self
->running_process
[i
]->pid
,
996 sizeof(self
->running_process
[i
]->pid
), 1, fp
);
999 nb_tracefile
= self
->parent
.tracefiles
->len
;
1001 for(i
= 0 ; i
< nb_tracefile
; i
++) {
1003 LTTV_TRACEFILE_STATE(g_array_index(self
->parent
.tracefiles
,
1004 LttvTracefileContext
*, i
));
1005 // fprintf(fp, " <TRACEFILE TIMESTAMP_S=%lu TIMESTAMP_NS=%lu",
1006 // tfcs->parent.timestamp.tv_sec,
1007 // tfcs->parent.timestamp.tv_nsec);
1008 g_tree_remove(pqueue
, &tfcs
->parent
);
1010 g_assert(hdr
== HDR_TRACEFILE
);
1011 fread(&tfcs
->parent
.timestamp
, sizeof(tfcs
->parent
.timestamp
), 1, fp
);
1012 /* Note : if timestamp if LTT_TIME_INFINITE, there will be no
1013 * position following : end of trace */
1014 if(ltt_time_compare(tfcs
->parent
.timestamp
, ltt_time_infinite
) != 0) {
1015 fread(&nb_block
, sizeof(nb_block
), 1, fp
);
1016 fread(&offset
, sizeof(offset
), 1, fp
);
1017 fread(&tsc
, sizeof(tsc
), 1, fp
);
1018 ltt_event_position_set(ep
, tfcs
->parent
.tf
, nb_block
, offset
, tsc
);
1019 gint ret
= ltt_tracefile_seek_position(tfcs
->parent
.tf
, ep
);
1021 g_tree_insert(pqueue
, &tfcs
->parent
, &tfcs
->parent
);
1026 saved_states_tree
= lttv_attribute_find_subdir(self
->parent
.t_a
,
1027 LTTV_STATE_SAVED_STATES
);
1028 saved_state_tree
= g_object_new(LTTV_ATTRIBUTE_TYPE
, NULL
);
1029 value
= lttv_attribute_add(saved_states_tree
,
1030 lttv_attribute_get_number(saved_states_tree
), LTTV_GOBJECT
);
1031 *(value
.v_gobject
) = (GObject
*)saved_state_tree
;
1032 value
= lttv_attribute_add(saved_state_tree
, LTTV_STATE_TIME
, LTTV_TIME
);
1033 *(value
.v_time
) = t
;
1034 lttv_state_save(self
, saved_state_tree
);
1035 g_debug("Saving state at time %lu.%lu", t
.tv_sec
,
1038 *(self
->max_time_state_recomputed_in_seek
) = t
;
1042 /* Called when a HDR_TRACE is found */
1043 void lttv_trace_states_read_raw(LttvTraceState
*tcs
, FILE *fp
,
1044 GPtrArray
*quarktable
)
1049 if(feof(fp
) || ferror(fp
)) goto end_loop
;
1051 if(hdr
== EOF
) goto end_loop
;
1054 case HDR_PROCESS_STATE
:
1055 /* Call read_process_state_raw */
1056 lttv_state_read_raw(tcs
, fp
, quarktable
);
1064 case HDR_USER_STACK
:
1068 g_error("Error while parsing saved state file :"
1069 " unexpected data header %d",
1073 g_error("Error while parsing saved state file : unknown data header %d",
1078 *(tcs
->max_time_state_recomputed_in_seek
) = tcs
->parent
.time_span
.end_time
;
1079 restore_init_state(tcs
);
1080 lttv_process_trace_seek_time(&tcs
->parent
, ltt_time_zero
);
1086 /* Copy each process from an existing hash table to a new one */
1088 static void copy_process_state(gpointer key
, gpointer value
,gpointer user_data
)
1090 LttvProcessState
*process
, *new_process
;
1092 GHashTable
*new_processes
= (GHashTable
*)user_data
;
1096 process
= (LttvProcessState
*)value
;
1097 new_process
= g_new(LttvProcessState
, 1);
1098 *new_process
= *process
;
1099 new_process
->execution_stack
= g_array_sized_new(FALSE
, FALSE
,
1100 sizeof(LttvExecutionState
), PREALLOCATED_EXECUTION_STACK
);
1101 new_process
->execution_stack
=
1102 g_array_set_size(new_process
->execution_stack
,
1103 process
->execution_stack
->len
);
1104 for(i
= 0 ; i
< process
->execution_stack
->len
; i
++) {
1105 g_array_index(new_process
->execution_stack
, LttvExecutionState
, i
) =
1106 g_array_index(process
->execution_stack
, LttvExecutionState
, i
);
1108 new_process
->state
= &g_array_index(new_process
->execution_stack
,
1109 LttvExecutionState
, new_process
->execution_stack
->len
- 1);
1110 new_process
->user_stack
= g_array_sized_new(FALSE
, FALSE
,
1111 sizeof(guint64
), 0);
1112 new_process
->user_stack
=
1113 g_array_set_size(new_process
->user_stack
,
1114 process
->user_stack
->len
);
1115 for(i
= 0 ; i
< process
->user_stack
->len
; i
++) {
1116 g_array_index(new_process
->user_stack
, guint64
, i
) =
1117 g_array_index(process
->user_stack
, guint64
, i
);
1119 new_process
->current_function
= process
->current_function
;
1120 g_hash_table_insert(new_processes
, new_process
, new_process
);
1124 static GHashTable
*lttv_state_copy_process_table(GHashTable
*processes
)
1126 GHashTable
*new_processes
= g_hash_table_new(process_hash
, process_equal
);
1128 g_hash_table_foreach(processes
, copy_process_state
, new_processes
);
1129 return new_processes
;
1132 static LttvCPUState
*lttv_state_copy_cpu_states(LttvCPUState
*states
, guint n
)
1135 LttvCPUState
*retval
;
1137 retval
= g_malloc(n
*sizeof(LttvCPUState
));
1139 for(i
=0; i
<n
; i
++) {
1140 retval
[i
].mode_stack
= g_array_new(FALSE
, FALSE
, sizeof(LttvCPUMode
));
1141 retval
[i
].last_irq
= states
[i
].last_irq
;
1142 g_array_set_size(retval
[i
].mode_stack
, states
[i
].mode_stack
->len
);
1143 for(j
=0; j
<states
[i
].mode_stack
->len
; j
++) {
1144 g_array_index(retval
[i
].mode_stack
, GQuark
, j
) = g_array_index(states
[i
].mode_stack
, GQuark
, j
);
1151 static void lttv_state_free_cpu_states(LttvCPUState
*states
, guint n
)
1155 for(i
=0; i
<n
; i
++) {
1156 g_array_free(states
[i
].mode_stack
, FALSE
);
1162 static LttvIRQState
*lttv_state_copy_irq_states(LttvIRQState
*states
, guint n
)
1165 LttvIRQState
*retval
;
1167 retval
= g_malloc(n
*sizeof(LttvIRQState
));
1169 for(i
=0; i
<n
; i
++) {
1170 retval
[i
].mode_stack
= g_array_new(FALSE
, FALSE
, sizeof(LttvIRQMode
));
1171 g_array_set_size(retval
[i
].mode_stack
, states
[i
].mode_stack
->len
);
1172 for(j
=0; j
<states
[i
].mode_stack
->len
; j
++) {
1173 g_array_index(retval
[i
].mode_stack
, GQuark
, j
) = g_array_index(states
[i
].mode_stack
, GQuark
, j
);
1180 static void lttv_state_free_irq_states(LttvIRQState
*states
, guint n
)
1184 for(i
=0; i
<n
; i
++) {
1185 g_array_free(states
[i
].mode_stack
, FALSE
);
1191 /* bdevstate stuff */
1193 static LttvBdevState
*get_hashed_bdevstate(LttvTraceState
*ts
, guint16 devcode
)
1195 gint devcode_gint
= devcode
;
1196 gpointer bdev
= g_hash_table_lookup(ts
->bdev_states
, &devcode_gint
);
1198 LttvBdevState
*bdevstate
= g_malloc(sizeof(LttvBdevState
));
1199 bdevstate
->mode_stack
= g_array_new(FALSE
, FALSE
, sizeof(GQuark
));
1201 gint
* key
= g_malloc(sizeof(gint
));
1203 g_hash_table_insert(ts
->bdev_states
, key
, bdevstate
);
1211 static LttvBdevState
*bdevstate_new(void)
1213 LttvBdevState
*retval
;
1214 retval
= g_malloc(sizeof(LttvBdevState
));
1215 retval
->mode_stack
= g_array_new(FALSE
, FALSE
, sizeof(GQuark
));
1220 static void bdevstate_free(LttvBdevState
*bds
)
1222 g_array_free(bds
->mode_stack
, FALSE
);
1226 static void bdevstate_free_cb(gpointer key
, gpointer value
, gpointer user_data
)
1228 LttvBdevState
*bds
= (LttvBdevState
*) value
;
1230 bdevstate_free(bds
);
1233 static LttvBdevState
*bdevstate_copy(LttvBdevState
*bds
)
1235 LttvBdevState
*retval
;
1237 retval
= bdevstate_new();
1238 g_array_insert_vals(retval
->mode_stack
, 0, bds
->mode_stack
->data
, bds
->mode_stack
->len
);
1243 static void insert_and_copy_bdev_state(gpointer k
, gpointer v
, gpointer u
)
1245 //GHashTable *ht = (GHashTable *)u;
1246 LttvBdevState
*bds
= (LttvBdevState
*)v
;
1247 LttvBdevState
*newbds
;
1249 newbds
= bdevstate_copy(bds
);
1251 g_hash_table_insert(u
, k
, newbds
);
1254 static GHashTable
*lttv_state_copy_blkdev_hashtable(GHashTable
*ht
)
1258 retval
= g_hash_table_new(g_int_hash
, g_int_equal
);
1260 g_hash_table_foreach(ht
, insert_and_copy_bdev_state
, retval
);
1265 /* Free a hashtable and the LttvBdevState structures its values
1268 static void lttv_state_free_blkdev_hashtable(GHashTable
*ht
)
1270 g_hash_table_foreach(ht
, bdevstate_free_cb
, NULL
);
1271 g_hash_table_destroy(ht
);
1274 /* The saved state for each trace contains a member "processes", which
1275 stores a copy of the process table, and a member "tracefiles" with
1276 one entry per tracefile. Each tracefile has a "process" member pointing
1277 to the current process and a "position" member storing the tracefile
1278 position (needed to seek to the current "next" event. */
1280 static void state_save(LttvTraceState
*self
, LttvAttribute
*container
)
1282 guint i
, nb_tracefile
, nb_cpus
, nb_irqs
;
1284 LttvTracefileState
*tfcs
;
1286 LttvAttribute
*tracefiles_tree
, *tracefile_tree
;
1288 guint
*running_process
;
1290 LttvAttributeValue value
;
1292 LttEventPosition
*ep
;
1294 tracefiles_tree
= lttv_attribute_find_subdir(container
,
1295 LTTV_STATE_TRACEFILES
);
1297 value
= lttv_attribute_add(container
, LTTV_STATE_PROCESSES
,
1299 *(value
.v_pointer
) = lttv_state_copy_process_table(self
->processes
);
1301 /* Add the currently running processes array */
1302 nb_cpus
= ltt_trace_get_num_cpu(self
->parent
.t
);
1303 running_process
= g_new(guint
, nb_cpus
);
1304 for(i
=0;i
<nb_cpus
;i
++) {
1305 running_process
[i
] = self
->running_process
[i
]->pid
;
1307 value
= lttv_attribute_add(container
, LTTV_STATE_RUNNING_PROCESS
,
1309 *(value
.v_pointer
) = running_process
;
1311 g_info("State save");
1313 nb_tracefile
= self
->parent
.tracefiles
->len
;
1315 for(i
= 0 ; i
< nb_tracefile
; i
++) {
1317 LTTV_TRACEFILE_STATE(g_array_index(self
->parent
.tracefiles
,
1318 LttvTracefileContext
*, i
));
1319 tracefile_tree
= g_object_new(LTTV_ATTRIBUTE_TYPE
, NULL
);
1320 value
= lttv_attribute_add(tracefiles_tree
, i
,
1322 *(value
.v_gobject
) = (GObject
*)tracefile_tree
;
1324 value
= lttv_attribute_add(tracefile_tree
, LTTV_STATE_PROCESS
,
1326 *(value
.v_uint
) = tfcs
->process
->pid
;
1328 value
= lttv_attribute_add(tracefile_tree
, LTTV_STATE_EVENT
,
1330 /* Only save the position if the tfs has not infinite time. */
1331 //if(!g_tree_lookup(self->parent.ts_context->pqueue, &tfcs->parent)
1332 // && current_tfcs != tfcs) {
1333 if(ltt_time_compare(tfcs
->parent
.timestamp
, ltt_time_infinite
) == 0) {
1334 *(value
.v_pointer
) = NULL
;
1336 LttEvent
*e
= ltt_tracefile_get_event(tfcs
->parent
.tf
);
1337 ep
= ltt_event_position_new();
1338 ltt_event_position(e
, ep
);
1339 *(value
.v_pointer
) = ep
;
1341 guint nb_block
, offset
;
1344 ltt_event_position_get(ep
, &tf
, &nb_block
, &offset
, &tsc
);
1345 g_info("Block %u offset %u tsc %llu time %lu.%lu", nb_block
, offset
,
1347 tfcs
->parent
.timestamp
.tv_sec
, tfcs
->parent
.timestamp
.tv_nsec
);
1351 /* save the cpu state */
1353 value
= lttv_attribute_add(container
, LTTV_STATE_RESOURCE_CPUS
,
1355 *(value
.v_pointer
) = lttv_state_copy_cpu_states(self
->cpu_states
, nb_cpus
);
1358 /* save the irq state */
1359 nb_irqs
= self
->nb_irqs
;
1361 value
= lttv_attribute_add(container
, LTTV_STATE_RESOURCE_IRQS
,
1363 *(value
.v_pointer
) = lttv_state_copy_irq_states(self
->irq_states
, nb_irqs
);
1366 /* save the blkdev states */
1367 value
= lttv_attribute_add(container
, LTTV_STATE_RESOURCE_BLKDEVS
,
1369 *(value
.v_pointer
) = lttv_state_copy_blkdev_hashtable(self
->bdev_states
);
1373 static void state_restore(LttvTraceState
*self
, LttvAttribute
*container
)
1375 guint i
, nb_tracefile
, pid
, nb_cpus
, nb_irqs
;
1377 LttvTracefileState
*tfcs
;
1379 LttvAttribute
*tracefiles_tree
, *tracefile_tree
;
1381 guint
*running_process
;
1383 LttvAttributeType type
;
1385 LttvAttributeValue value
;
1387 LttvAttributeName name
;
1391 LttEventPosition
*ep
;
1393 LttvTracesetContext
*tsc
= self
->parent
.ts_context
;
1395 tracefiles_tree
= lttv_attribute_find_subdir(container
,
1396 LTTV_STATE_TRACEFILES
);
1398 type
= lttv_attribute_get_by_name(container
, LTTV_STATE_PROCESSES
,
1400 g_assert(type
== LTTV_POINTER
);
1401 lttv_state_free_process_table(self
->processes
);
1402 self
->processes
= lttv_state_copy_process_table(*(value
.v_pointer
));
1404 /* Add the currently running processes array */
1405 nb_cpus
= ltt_trace_get_num_cpu(self
->parent
.t
);
1406 type
= lttv_attribute_get_by_name(container
, LTTV_STATE_RUNNING_PROCESS
,
1408 g_assert(type
== LTTV_POINTER
);
1409 running_process
= *(value
.v_pointer
);
1410 for(i
=0;i
<nb_cpus
;i
++) {
1411 pid
= running_process
[i
];
1412 self
->running_process
[i
] = lttv_state_find_process(self
, i
, pid
);
1413 g_assert(self
->running_process
[i
] != NULL
);
1416 nb_tracefile
= self
->parent
.tracefiles
->len
;
1418 //g_tree_destroy(tsc->pqueue);
1419 //tsc->pqueue = g_tree_new(compare_tracefile);
1421 /* restore cpu resource states */
1422 type
= lttv_attribute_get_by_name(container
, LTTV_STATE_RESOURCE_CPUS
, &value
);
1423 g_assert(type
== LTTV_POINTER
);
1424 lttv_state_free_cpu_states(self
->cpu_states
, nb_cpus
);
1425 self
->cpu_states
= lttv_state_copy_cpu_states(*(value
.v_pointer
), nb_cpus
);
1427 /* restore irq resource states */
1428 nb_irqs
= self
->nb_irqs
;
1429 type
= lttv_attribute_get_by_name(container
, LTTV_STATE_RESOURCE_IRQS
, &value
);
1430 g_assert(type
== LTTV_POINTER
);
1431 lttv_state_free_irq_states(self
->irq_states
, nb_irqs
);
1432 self
->irq_states
= lttv_state_copy_irq_states(*(value
.v_pointer
), nb_irqs
);
1434 /* restore the blkdev states */
1435 type
= lttv_attribute_get_by_name(container
, LTTV_STATE_RESOURCE_BLKDEVS
, &value
);
1436 g_assert(type
== LTTV_POINTER
);
1437 lttv_state_free_blkdev_hashtable(self
->bdev_states
);
1438 self
->bdev_states
= lttv_state_copy_blkdev_hashtable(*(value
.v_pointer
));
1440 for(i
= 0 ; i
< nb_tracefile
; i
++) {
1442 LTTV_TRACEFILE_STATE(g_array_index(self
->parent
.tracefiles
,
1443 LttvTracefileContext
*, i
));
1444 type
= lttv_attribute_get(tracefiles_tree
, i
, &name
, &value
, &is_named
);
1445 g_assert(type
== LTTV_GOBJECT
);
1446 tracefile_tree
= *((LttvAttribute
**)(value
.v_gobject
));
1448 type
= lttv_attribute_get_by_name(tracefile_tree
, LTTV_STATE_PROCESS
,
1450 g_assert(type
== LTTV_UINT
);
1451 pid
= *(value
.v_uint
);
1452 tfcs
->process
= lttv_state_find_process_or_create(tfcs
, pid
);
1454 type
= lttv_attribute_get_by_name(tracefile_tree
, LTTV_STATE_EVENT
,
1456 g_assert(type
== LTTV_POINTER
);
1457 //g_assert(*(value.v_pointer) != NULL);
1458 ep
= *(value
.v_pointer
);
1459 g_assert(tfcs
->parent
.t_context
!= NULL
);
1461 tfcs
->cpu_state
= &self
->cpu_states
[tfcs
->cpu
];
1463 LttvTracefileContext
*tfc
= LTTV_TRACEFILE_CONTEXT(tfcs
);
1464 g_tree_remove(tsc
->pqueue
, tfc
);
1467 g_assert(ltt_tracefile_seek_position(tfc
->tf
, ep
) == 0);
1468 tfc
->timestamp
= ltt_event_time(ltt_tracefile_get_event(tfc
->tf
));
1469 g_assert(ltt_time_compare(tfc
->timestamp
, ltt_time_infinite
) != 0);
1470 g_tree_insert(tsc
->pqueue
, tfc
, tfc
);
1471 g_info("Restoring state for a tf at time %lu.%lu", tfc
->timestamp
.tv_sec
, tfc
->timestamp
.tv_nsec
);
1473 tfc
->timestamp
= ltt_time_infinite
;
1479 static void state_saved_free(LttvTraceState
*self
, LttvAttribute
*container
)
1481 guint i
, nb_tracefile
, nb_cpus
;
1483 LttvTracefileState
*tfcs
;
1485 LttvAttribute
*tracefiles_tree
, *tracefile_tree
;
1487 guint
*running_process
;
1489 LttvAttributeType type
;
1491 LttvAttributeValue value
;
1493 LttvAttributeName name
;
1497 tracefiles_tree
= lttv_attribute_find_subdir(container
,
1498 LTTV_STATE_TRACEFILES
);
1499 g_object_ref(G_OBJECT(tracefiles_tree
));
1500 lttv_attribute_remove_by_name(container
, LTTV_STATE_TRACEFILES
);
1502 type
= lttv_attribute_get_by_name(container
, LTTV_STATE_PROCESSES
,
1504 g_assert(type
== LTTV_POINTER
);
1505 lttv_state_free_process_table(*(value
.v_pointer
));
1506 *(value
.v_pointer
) = NULL
;
1507 lttv_attribute_remove_by_name(container
, LTTV_STATE_PROCESSES
);
1509 /* Free running processes array */
1510 nb_cpus
= ltt_trace_get_num_cpu(self
->parent
.t
);
1511 type
= lttv_attribute_get_by_name(container
, LTTV_STATE_RUNNING_PROCESS
,
1513 g_assert(type
== LTTV_POINTER
);
1514 running_process
= *(value
.v_pointer
);
1515 g_free(running_process
);
1517 nb_tracefile
= self
->parent
.tracefiles
->len
;
1519 for(i
= 0 ; i
< nb_tracefile
; i
++) {
1521 LTTV_TRACEFILE_STATE(g_array_index(self
->parent
.tracefiles
,
1522 LttvTracefileContext
*, i
));
1523 type
= lttv_attribute_get(tracefiles_tree
, i
, &name
, &value
, &is_named
);
1524 g_assert(type
== LTTV_GOBJECT
);
1525 tracefile_tree
= *((LttvAttribute
**)(value
.v_gobject
));
1527 type
= lttv_attribute_get_by_name(tracefile_tree
, LTTV_STATE_EVENT
,
1529 g_assert(type
== LTTV_POINTER
);
1530 if(*(value
.v_pointer
) != NULL
) g_free(*(value
.v_pointer
));
1532 g_object_unref(G_OBJECT(tracefiles_tree
));
1536 static void free_saved_state(LttvTraceState
*self
)
1540 LttvAttributeType type
;
1542 LttvAttributeValue value
;
1544 LttvAttributeName name
;
1548 LttvAttribute
*saved_states
;
1550 saved_states
= lttv_attribute_find_subdir(self
->parent
.t_a
,
1551 LTTV_STATE_SAVED_STATES
);
1553 nb
= lttv_attribute_get_number(saved_states
);
1554 for(i
= 0 ; i
< nb
; i
++) {
1555 type
= lttv_attribute_get(saved_states
, i
, &name
, &value
, &is_named
);
1556 g_assert(type
== LTTV_GOBJECT
);
1557 state_saved_free(self
, *((LttvAttribute
**)value
.v_gobject
));
1560 lttv_attribute_remove_by_name(self
->parent
.t_a
, LTTV_STATE_SAVED_STATES
);
1565 create_max_time(LttvTraceState
*tcs
)
1567 LttvAttributeValue v
;
1569 lttv_attribute_find(tcs
->parent
.t_a
, LTTV_STATE_SAVED_STATES_TIME
,
1571 g_assert(*(v
.v_pointer
) == NULL
);
1572 *(v
.v_pointer
) = g_new(LttTime
,1);
1573 *((LttTime
*)*(v
.v_pointer
)) = ltt_time_zero
;
1578 get_max_time(LttvTraceState
*tcs
)
1580 LttvAttributeValue v
;
1582 lttv_attribute_find(tcs
->parent
.t_a
, LTTV_STATE_SAVED_STATES_TIME
,
1584 g_assert(*(v
.v_pointer
) != NULL
);
1585 tcs
->max_time_state_recomputed_in_seek
= (LttTime
*)*(v
.v_pointer
);
1590 free_max_time(LttvTraceState
*tcs
)
1592 LttvAttributeValue v
;
1594 lttv_attribute_find(tcs
->parent
.t_a
, LTTV_STATE_SAVED_STATES_TIME
,
1596 g_free(*(v
.v_pointer
));
1597 *(v
.v_pointer
) = NULL
;
1601 typedef struct _LttvNameTables
{
1602 // FIXME GQuark *eventtype_names;
1603 GQuark
*syscall_names
;
1609 GQuark
*soft_irq_names
;
1615 create_name_tables(LttvTraceState
*tcs
)
1619 GString
*fe_name
= g_string_new("");
1621 LttvNameTables
*name_tables
= g_new(LttvNameTables
, 1);
1623 LttvAttributeValue v
;
1627 lttv_attribute_find(tcs
->parent
.t_a
, LTTV_STATE_NAME_TABLES
,
1629 g_assert(*(v
.v_pointer
) == NULL
);
1630 *(v
.v_pointer
) = name_tables
;
1632 hooks
= g_array_sized_new(FALSE
, FALSE
, sizeof(LttvTraceHook
), 1);
1634 if(!lttv_trace_find_hook(tcs
->parent
.t
,
1635 LTT_EVENT_SYSCALL_ENTRY
,
1636 FIELD_ARRAY(LTT_FIELD_SYSCALL_ID
),
1637 NULL
, NULL
, &hooks
)) {
1639 // th = lttv_trace_hook_get_first(&th);
1641 // t = ltt_field_type(th->f1);
1642 // nb = ltt_type_element_number(t);
1644 // name_tables->syscall_names = g_new(GQuark, nb);
1645 // name_tables->nb_syscalls = nb;
1647 // for(i = 0 ; i < nb ; i++) {
1648 // name_tables->syscall_names[i] = ltt_enum_string_get(t, i);
1649 // if(!name_tables->syscall_names[i]) {
1650 // GString *string = g_string_new("");
1651 // g_string_printf(string, "syscall %u", i);
1652 // name_tables->syscall_names[i] = g_quark_from_string(string->str);
1653 // g_string_free(string, TRUE);
1657 name_tables
->syscall_names
= g_new(GQuark
, 256);
1658 for(i
= 0 ; i
< 256 ; i
++) {
1659 g_string_printf(fe_name
, "syscall %d", i
);
1660 name_tables
->syscall_names
[i
] = g_quark_from_string(fe_name
->str
);
1663 name_tables
->syscall_names
= NULL
;
1664 name_tables
->nb_syscalls
= 0;
1666 lttv_trace_hook_remove_all(&hooks
);
1668 if(!lttv_trace_find_hook(tcs
->parent
.t
,
1669 LTT_EVENT_TRAP_ENTRY
,
1670 FIELD_ARRAY(LTT_FIELD_TRAP_ID
),
1671 NULL
, NULL
, &hooks
)) {
1673 // th = lttv_trace_hook_get_first(&th);
1675 // t = ltt_field_type(th->f1);
1676 // //nb = ltt_type_element_number(t);
1678 // name_tables->trap_names = g_new(GQuark, nb);
1679 // for(i = 0 ; i < nb ; i++) {
1680 // name_tables->trap_names[i] = g_quark_from_string(
1681 // ltt_enum_string_get(t, i));
1684 name_tables
->nb_traps
= 256;
1685 name_tables
->trap_names
= g_new(GQuark
, 256);
1686 for(i
= 0 ; i
< 256 ; i
++) {
1687 g_string_printf(fe_name
, "trap %d", i
);
1688 name_tables
->trap_names
[i
] = g_quark_from_string(fe_name
->str
);
1691 name_tables
->trap_names
= NULL
;
1692 name_tables
->nb_traps
= 0;
1694 lttv_trace_hook_remove_all(&hooks
);
1696 if(!lttv_trace_find_hook(tcs
->parent
.t
,
1697 LTT_EVENT_IRQ_ENTRY
,
1698 FIELD_ARRAY(LTT_FIELD_IRQ_ID
),
1699 NULL
, NULL
, &hooks
)) {
1702 name_tables->irq_names = g_new(GQuark, nb);
1703 for(i = 0 ; i < nb ; i++) {
1704 name_tables->irq_names[i] = g_quark_from_string(ltt_enum_string_get(t, i));
1708 name_tables
->nb_irqs
= 256;
1709 name_tables
->irq_names
= g_new(GQuark
, 256);
1710 for(i
= 0 ; i
< 256 ; i
++) {
1711 g_string_printf(fe_name
, "irq %d", i
);
1712 name_tables
->irq_names
[i
] = g_quark_from_string(fe_name
->str
);
1715 name_tables
->nb_irqs
= 0;
1716 name_tables
->irq_names
= NULL
;
1718 lttv_trace_hook_remove_all(&hooks
);
1720 name_tables->soft_irq_names = g_new(GQuark, nb);
1721 for(i = 0 ; i < nb ; i++) {
1722 name_tables->soft_irq_names[i] = g_quark_from_string(ltt_enum_string_get(t, i));
1726 name_tables
->nb_softirqs
= 256;
1727 name_tables
->soft_irq_names
= g_new(GQuark
, 256);
1728 for(i
= 0 ; i
< 256 ; i
++) {
1729 g_string_printf(fe_name
, "softirq %d", i
);
1730 name_tables
->soft_irq_names
[i
] = g_quark_from_string(fe_name
->str
);
1732 g_array_free(hooks
, TRUE
);
1734 g_string_free(fe_name
, TRUE
);
1739 get_name_tables(LttvTraceState
*tcs
)
1741 LttvNameTables
*name_tables
;
1743 LttvAttributeValue v
;
1745 lttv_attribute_find(tcs
->parent
.t_a
, LTTV_STATE_NAME_TABLES
,
1747 g_assert(*(v
.v_pointer
) != NULL
);
1748 name_tables
= (LttvNameTables
*)*(v
.v_pointer
);
1749 //tcs->eventtype_names = name_tables->eventtype_names;
1750 tcs
->syscall_names
= name_tables
->syscall_names
;
1751 tcs
->nb_syscalls
= name_tables
->nb_syscalls
;
1752 tcs
->trap_names
= name_tables
->trap_names
;
1753 tcs
->nb_traps
= name_tables
->nb_traps
;
1754 tcs
->irq_names
= name_tables
->irq_names
;
1755 tcs
->soft_irq_names
= name_tables
->soft_irq_names
;
1756 tcs
->nb_irqs
= name_tables
->nb_irqs
;
1757 tcs
->nb_softirqs
= name_tables
->nb_softirqs
;
1762 free_name_tables(LttvTraceState
*tcs
)
1764 LttvNameTables
*name_tables
;
1766 LttvAttributeValue v
;
1768 lttv_attribute_find(tcs
->parent
.t_a
, LTTV_STATE_NAME_TABLES
,
1770 name_tables
= (LttvNameTables
*)*(v
.v_pointer
);
1771 *(v
.v_pointer
) = NULL
;
1773 // g_free(name_tables->eventtype_names);
1774 if(name_tables
->syscall_names
) g_free(name_tables
->syscall_names
);
1775 if(name_tables
->trap_names
) g_free(name_tables
->trap_names
);
1776 if(name_tables
->irq_names
) g_free(name_tables
->irq_names
);
1777 if(name_tables
->soft_irq_names
) g_free(name_tables
->soft_irq_names
);
1778 if(name_tables
) g_free(name_tables
);
1781 #ifdef HASH_TABLE_DEBUG
1783 static void test_process(gpointer key
, gpointer value
, gpointer user_data
)
1785 LttvProcessState
*process
= (LttvProcessState
*)value
;
1787 /* Test for process corruption */
1788 guint stack_len
= process
->execution_stack
->len
;
1791 static void hash_table_check(GHashTable
*table
)
1793 g_hash_table_foreach(table
, test_process
, NULL
);
1799 /* clears the stack and sets the state passed as argument */
1800 static void cpu_set_base_mode(LttvCPUState
*cpust
, LttvCPUMode state
)
1802 g_array_set_size(cpust
->mode_stack
, 1);
1803 ((GQuark
*)cpust
->mode_stack
->data
)[0] = state
;
1806 static void cpu_push_mode(LttvCPUState
*cpust
, LttvCPUMode state
)
1808 g_array_set_size(cpust
->mode_stack
, cpust
->mode_stack
->len
+ 1);
1809 ((GQuark
*)cpust
->mode_stack
->data
)[cpust
->mode_stack
->len
- 1] = state
;
1812 static void cpu_pop_mode(LttvCPUState
*cpust
)
1814 if(cpust
->mode_stack
->len
<= 1)
1815 cpu_set_base_mode(cpust
, LTTV_CPU_UNKNOWN
);
1817 g_array_set_size(cpust
->mode_stack
, cpust
->mode_stack
->len
- 1);
1820 /* clears the stack and sets the state passed as argument */
1821 static void bdev_set_base_mode(LttvBdevState
*bdevst
, LttvBdevMode state
)
1823 g_array_set_size(bdevst
->mode_stack
, 1);
1824 ((GQuark
*)bdevst
->mode_stack
->data
)[0] = state
;
1827 static void bdev_push_mode(LttvBdevState
*bdevst
, LttvBdevMode state
)
1829 g_array_set_size(bdevst
->mode_stack
, bdevst
->mode_stack
->len
+ 1);
1830 ((GQuark
*)bdevst
->mode_stack
->data
)[bdevst
->mode_stack
->len
- 1] = state
;
1833 static void bdev_pop_mode(LttvBdevState
*bdevst
)
1835 if(bdevst
->mode_stack
->len
<= 1)
1836 bdev_set_base_mode(bdevst
, LTTV_BDEV_UNKNOWN
);
1838 g_array_set_size(bdevst
->mode_stack
, bdevst
->mode_stack
->len
- 1);
1841 static void irq_set_base_mode(LttvIRQState
*irqst
, LttvIRQMode state
)
1843 g_array_set_size(irqst
->mode_stack
, 1);
1844 ((GQuark
*)irqst
->mode_stack
->data
)[0] = state
;
1847 static void irq_push_mode(LttvIRQState
*irqst
, LttvIRQMode state
)
1849 g_array_set_size(irqst
->mode_stack
, irqst
->mode_stack
->len
+ 1);
1850 ((GQuark
*)irqst
->mode_stack
->data
)[irqst
->mode_stack
->len
- 1] = state
;
1853 static void irq_pop_mode(LttvIRQState
*irqst
)
1855 if(irqst
->mode_stack
->len
<= 1)
1856 irq_set_base_mode(irqst
, LTTV_IRQ_UNKNOWN
);
1858 g_array_set_size(irqst
->mode_stack
, irqst
->mode_stack
->len
- 1);
1861 static void push_state(LttvTracefileState
*tfs
, LttvExecutionMode t
,
1864 LttvExecutionState
*es
;
1866 LttvTraceState
*ts
= (LttvTraceState
*)tfs
->parent
.t_context
;
1867 guint cpu
= tfs
->cpu
;
1869 #ifdef HASH_TABLE_DEBUG
1870 hash_table_check(ts
->processes
);
1872 LttvProcessState
*process
= ts
->running_process
[cpu
];
1874 guint depth
= process
->execution_stack
->len
;
1876 process
->execution_stack
=
1877 g_array_set_size(process
->execution_stack
, depth
+ 1);
1880 &g_array_index(process
->execution_stack
, LttvExecutionState
, depth
- 1);
1882 es
= &g_array_index(process
->execution_stack
, LttvExecutionState
, depth
);
1885 es
->entry
= es
->change
= tfs
->parent
.timestamp
;
1886 es
->cum_cpu_time
= ltt_time_zero
;
1887 es
->s
= process
->state
->s
;
1888 process
->state
= es
;
1892 * return 1 when empty, else 0 */
1893 int lttv_state_pop_state_cleanup(LttvProcessState
*process
,
1894 LttvTracefileState
*tfs
)
1896 guint depth
= process
->execution_stack
->len
;
1902 process
->execution_stack
=
1903 g_array_set_size(process
->execution_stack
, depth
- 1);
1904 process
->state
= &g_array_index(process
->execution_stack
, LttvExecutionState
,
1906 process
->state
->change
= tfs
->parent
.timestamp
;
1911 static void pop_state(LttvTracefileState
*tfs
, LttvExecutionMode t
)
1913 guint cpu
= tfs
->cpu
;
1914 LttvTraceState
*ts
= (LttvTraceState
*)tfs
->parent
.t_context
;
1915 LttvProcessState
*process
= ts
->running_process
[cpu
];
1917 guint depth
= process
->execution_stack
->len
;
1919 if(process
->state
->t
!= t
){
1920 g_info("Different execution mode type (%lu.%09lu): ignore it\n",
1921 tfs
->parent
.timestamp
.tv_sec
, tfs
->parent
.timestamp
.tv_nsec
);
1922 g_info("process state has %s when pop_int is %s\n",
1923 g_quark_to_string(process
->state
->t
),
1924 g_quark_to_string(t
));
1925 g_info("{ %u, %u, %s, %s, %s }\n",
1928 g_quark_to_string(process
->name
),
1929 g_quark_to_string(process
->brand
),
1930 g_quark_to_string(process
->state
->s
));
1935 g_info("Trying to pop last state on stack (%lu.%09lu): ignore it\n",
1936 tfs
->parent
.timestamp
.tv_sec
, tfs
->parent
.timestamp
.tv_nsec
);
1940 process
->execution_stack
=
1941 g_array_set_size(process
->execution_stack
, depth
- 1);
1942 process
->state
= &g_array_index(process
->execution_stack
, LttvExecutionState
,
1944 process
->state
->change
= tfs
->parent
.timestamp
;
1947 struct search_result
{
1948 const LttTime
*time
; /* Requested time */
1949 LttTime
*best
; /* Best result */
1952 static gint
search_usertrace(gconstpointer a
, gconstpointer b
)
1954 const LttTime
*elem_time
= (const LttTime
*)a
;
1955 /* Explicit non const cast */
1956 struct search_result
*res
= (struct search_result
*)b
;
1958 if(ltt_time_compare(*elem_time
, *(res
->time
)) < 0) {
1959 /* The usertrace was created before the schedchange */
1960 /* Get larger keys */
1962 } else if(ltt_time_compare(*elem_time
, *(res
->time
)) >= 0) {
1963 /* The usertrace was created after the schedchange time */
1964 /* Get smaller keys */
1966 if(ltt_time_compare(*elem_time
, *res
->best
) < 0) {
1967 res
->best
= (LttTime
*)elem_time
;
1970 res
->best
= (LttTime
*)elem_time
;
1977 static LttvTracefileState
*ltt_state_usertrace_find(LttvTraceState
*tcs
,
1978 guint pid
, const LttTime
*timestamp
)
1980 LttvTracefileState
*tfs
= NULL
;
1981 struct search_result res
;
1982 /* Find the usertrace associated with a pid and time interval.
1983 * Search in the usertraces by PID (within a hash) and then, for each
1984 * corresponding element of the array, find the first one with creation
1985 * timestamp the lowest, but higher or equal to "timestamp". */
1986 res
.time
= timestamp
;
1988 GTree
*usertrace_tree
= g_hash_table_lookup(tcs
->usertraces
, (gpointer
)pid
);
1989 if(usertrace_tree
) {
1990 g_tree_search(usertrace_tree
, search_usertrace
, &res
);
1992 tfs
= g_tree_lookup(usertrace_tree
, res
.best
);
2000 lttv_state_create_process(LttvTraceState
*tcs
, LttvProcessState
*parent
,
2001 guint cpu
, guint pid
, guint tgid
, GQuark name
, const LttTime
*timestamp
)
2003 LttvProcessState
*process
= g_new(LttvProcessState
, 1);
2005 LttvExecutionState
*es
;
2010 process
->tgid
= tgid
;
2012 process
->name
= name
;
2013 process
->brand
= LTTV_STATE_UNBRANDED
;
2014 //process->last_cpu = tfs->cpu_name;
2015 //process->last_cpu_index = ltt_tracefile_num(((LttvTracefileContext*)tfs)->tf);
2016 process
->type
= LTTV_STATE_USER_THREAD
;
2017 process
->usertrace
= ltt_state_usertrace_find(tcs
, pid
, timestamp
);
2018 process
->current_function
= 0; //function 0x0 by default.
2020 g_info("Process %u, core %p", process
->pid
, process
);
2021 g_hash_table_insert(tcs
->processes
, process
, process
);
2024 process
->ppid
= parent
->pid
;
2025 process
->creation_time
= *timestamp
;
2028 /* No parent. This process exists but we are missing all information about
2029 its creation. The birth time is set to zero but we remember the time of
2034 process
->creation_time
= ltt_time_zero
;
2037 process
->insertion_time
= *timestamp
;
2038 sprintf(buffer
,"%d-%lu.%lu",pid
, process
->creation_time
.tv_sec
,
2039 process
->creation_time
.tv_nsec
);
2040 process
->pid_time
= g_quark_from_string(buffer
);
2042 //process->last_cpu = tfs->cpu_name;
2043 //process->last_cpu_index = ltt_tracefile_num(((LttvTracefileContext*)tfs)->tf);
2044 process
->execution_stack
= g_array_sized_new(FALSE
, FALSE
,
2045 sizeof(LttvExecutionState
), PREALLOCATED_EXECUTION_STACK
);
2046 process
->execution_stack
= g_array_set_size(process
->execution_stack
, 2);
2047 es
= process
->state
= &g_array_index(process
->execution_stack
,
2048 LttvExecutionState
, 0);
2049 es
->t
= LTTV_STATE_USER_MODE
;
2050 es
->n
= LTTV_STATE_SUBMODE_NONE
;
2051 es
->entry
= *timestamp
;
2052 //g_assert(timestamp->tv_sec != 0);
2053 es
->change
= *timestamp
;
2054 es
->cum_cpu_time
= ltt_time_zero
;
2055 es
->s
= LTTV_STATE_RUN
;
2057 es
= process
->state
= &g_array_index(process
->execution_stack
,
2058 LttvExecutionState
, 1);
2059 es
->t
= LTTV_STATE_SYSCALL
;
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_WAIT_FORK
;
2067 /* Allocate an empty function call stack. If it's empty, use 0x0. */
2068 process
->user_stack
= g_array_sized_new(FALSE
, FALSE
,
2069 sizeof(guint64
), 0);
2074 LttvProcessState
*lttv_state_find_process(LttvTraceState
*ts
, guint cpu
,
2077 LttvProcessState key
;
2078 LttvProcessState
*process
;
2082 process
= g_hash_table_lookup(ts
->processes
, &key
);
2087 lttv_state_find_process_or_create(LttvTraceState
*ts
, guint cpu
, guint pid
,
2088 const LttTime
*timestamp
)
2090 LttvProcessState
*process
= lttv_state_find_process(ts
, cpu
, pid
);
2091 LttvExecutionState
*es
;
2093 /* Put ltt_time_zero creation time for unexisting processes */
2094 if(unlikely(process
== NULL
)) {
2095 process
= lttv_state_create_process(ts
,
2096 NULL
, cpu
, pid
, 0, LTTV_STATE_UNNAMED
, timestamp
);
2097 /* We are not sure is it's a kernel thread or normal thread, put the
2098 * bottom stack state to unknown */
2099 process
->execution_stack
=
2100 g_array_set_size(process
->execution_stack
, 1);
2101 process
->state
= es
=
2102 &g_array_index(process
->execution_stack
, LttvExecutionState
, 0);
2103 es
->t
= LTTV_STATE_MODE_UNKNOWN
;
2104 es
->s
= LTTV_STATE_UNNAMED
;
2109 /* FIXME : this function should be called when we receive an event telling that
2110 * release_task has been called in the kernel. In happens generally when
2111 * the parent waits for its child terminaison, but may also happen in special
2112 * cases in the child's exit : when the parent ignores its children SIGCCHLD or
2113 * has the flag SA_NOCLDWAIT. It can also happen when the child is part
2114 * of a killed thread ground, but isn't the leader.
2116 static void exit_process(LttvTracefileState
*tfs
, LttvProcessState
*process
)
2118 LttvTraceState
*ts
= LTTV_TRACE_STATE(tfs
->parent
.t_context
);
2119 LttvProcessState key
;
2121 key
.pid
= process
->pid
;
2122 key
.cpu
= process
->cpu
;
2123 g_hash_table_remove(ts
->processes
, &key
);
2124 g_array_free(process
->execution_stack
, TRUE
);
2125 g_array_free(process
->user_stack
, TRUE
);
2130 static void free_process_state(gpointer key
, gpointer value
,gpointer user_data
)
2132 g_array_free(((LttvProcessState
*)value
)->execution_stack
, TRUE
);
2133 g_array_free(((LttvProcessState
*)value
)->user_stack
, TRUE
);
2138 static void lttv_state_free_process_table(GHashTable
*processes
)
2140 g_hash_table_foreach(processes
, free_process_state
, NULL
);
2141 g_hash_table_destroy(processes
);
2145 static gboolean
syscall_entry(void *hook_data
, void *call_data
)
2147 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2149 LttvTraceState
*ts
= (LttvTraceState
*)s
->parent
.t_context
;
2150 LttvProcessState
*process
= ts
->running_process
[cpu
];
2151 LttEvent
*e
= ltt_tracefile_get_event(s
->parent
.tf
);
2152 LttvTraceHook
*th
= (LttvTraceHook
*)hook_data
;
2153 struct marker_field
*f
= lttv_trace_get_hook_field(th
, 0);
2155 LttvExecutionSubmode submode
;
2157 guint nb_syscalls
= ((LttvTraceState
*)(s
->parent
.t_context
))->nb_syscalls
;
2158 guint syscall
= ltt_event_get_unsigned(e
, f
);
2160 if(syscall
< nb_syscalls
) {
2161 submode
= ((LttvTraceState
*)(s
->parent
.t_context
))->syscall_names
[
2164 /* Fixup an incomplete syscall table */
2165 GString
*string
= g_string_new("");
2166 g_string_printf(string
, "syscall %u", syscall
);
2167 submode
= g_quark_from_string(string
->str
);
2168 g_string_free(string
, TRUE
);
2170 /* There can be no system call from PID 0 : unknown state */
2171 if(process
->pid
!= 0)
2172 push_state(s
, LTTV_STATE_SYSCALL
, submode
);
2177 static gboolean
syscall_exit(void *hook_data
, void *call_data
)
2179 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2181 LttvTraceState
*ts
= (LttvTraceState
*)s
->parent
.t_context
;
2182 LttvProcessState
*process
= ts
->running_process
[cpu
];
2184 /* There can be no system call from PID 0 : unknown state */
2185 if(process
->pid
!= 0)
2186 pop_state(s
, LTTV_STATE_SYSCALL
);
2191 static gboolean
trap_entry(void *hook_data
, void *call_data
)
2193 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2194 LttEvent
*e
= ltt_tracefile_get_event(s
->parent
.tf
);
2195 LttvTraceHook
*th
= (LttvTraceHook
*)hook_data
;
2196 struct marker_field
*f
= th
->f1
;
2198 LttvExecutionSubmode submode
;
2200 guint64 nb_traps
= ((LttvTraceState
*)(s
->parent
.t_context
))->nb_traps
;
2201 guint64 trap
= ltt_event_get_long_unsigned(e
, f
);
2203 if(trap
< nb_traps
) {
2204 submode
= ((LttvTraceState
*)(s
->parent
.t_context
))->trap_names
[trap
];
2206 /* Fixup an incomplete trap table */
2207 GString
*string
= g_string_new("");
2208 g_string_printf(string
, "trap %llu", trap
);
2209 submode
= g_quark_from_string(string
->str
);
2210 g_string_free(string
, TRUE
);
2213 push_state(s
, LTTV_STATE_TRAP
, submode
);
2215 /* update cpu status */
2216 cpu_push_mode(s
->cpu_state
, LTTV_CPU_TRAP
);
2221 static gboolean
trap_exit(void *hook_data
, void *call_data
)
2223 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2225 pop_state(s
, LTTV_STATE_TRAP
);
2227 /* update cpu status */
2228 cpu_pop_mode(s
->cpu_state
);
2233 static gboolean
irq_entry(void *hook_data
, void *call_data
)
2235 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2236 LttvTraceState
*ts
= (LttvTraceState
*)s
->parent
.t_context
;
2237 LttEvent
*e
= ltt_tracefile_get_event(s
->parent
.tf
);
2238 //guint8 ev_id = ltt_event_eventtype_id(e);
2239 LttvTraceHook
*th
= (LttvTraceHook
*)hook_data
;
2240 g_assert(th
->f1
!= NULL
);
2241 struct marker_field
*f
= th
->f1
;
2243 LttvExecutionSubmode submode
;
2244 guint64 irq
= ltt_event_get_long_unsigned(e
, f
);
2245 guint64 nb_irqs
= ((LttvTraceState
*)(s
->parent
.t_context
))->nb_irqs
;
2248 submode
= ((LttvTraceState
*)(s
->parent
.t_context
))->irq_names
[irq
];
2250 /* Fixup an incomplete irq table */
2251 GString
*string
= g_string_new("");
2252 g_string_printf(string
, "irq %llu", irq
);
2253 submode
= g_quark_from_string(string
->str
);
2254 g_string_free(string
, TRUE
);
2257 /* Do something with the info about being in user or system mode when int? */
2258 push_state(s
, LTTV_STATE_IRQ
, submode
);
2260 /* update cpu status */
2261 cpu_push_mode(s
->cpu_state
, LTTV_CPU_IRQ
);
2263 /* update irq status */
2264 s
->cpu_state
->last_irq
= irq
;
2265 irq_push_mode(&ts
->irq_states
[irq
], LTTV_IRQ_BUSY
);
2270 static gboolean
soft_irq_exit(void *hook_data
, void *call_data
)
2272 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2274 pop_state(s
, LTTV_STATE_SOFT_IRQ
);
2280 static gboolean
irq_exit(void *hook_data
, void *call_data
)
2282 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2283 LttvTraceState
*ts
= (LttvTraceState
*)s
->parent
.t_context
;
2285 pop_state(s
, LTTV_STATE_IRQ
);
2287 /* update cpu status */
2288 cpu_pop_mode(s
->cpu_state
);
2290 /* update irq status */
2291 irq_pop_mode(&ts
->irq_states
[s
->cpu_state
->last_irq
]);
2296 static gboolean
soft_irq_entry(void *hook_data
, void *call_data
)
2298 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2299 LttEvent
*e
= ltt_tracefile_get_event(s
->parent
.tf
);
2300 //guint8 ev_id = ltt_event_eventtype_id(e);
2301 LttvTraceHook
*th
= (LttvTraceHook
*)hook_data
;
2302 g_assert(th
->f1
!= NULL
);
2303 struct marker_field
*f
= th
->f1
;
2305 LttvExecutionSubmode submode
;
2306 guint64 softirq
= ltt_event_get_long_unsigned(e
, f
);
2307 guint64 nb_softirqs
= ((LttvTraceState
*)(s
->parent
.t_context
))->nb_softirqs
;
2309 if(softirq
< nb_softirqs
) {
2310 submode
= ((LttvTraceState
*)(s
->parent
.t_context
))->soft_irq_names
[softirq
];
2312 /* Fixup an incomplete irq table */
2313 GString
*string
= g_string_new("");
2314 g_string_printf(string
, "softirq %llu", softirq
);
2315 submode
= g_quark_from_string(string
->str
);
2316 g_string_free(string
, TRUE
);
2319 /* Do something with the info about being in user or system mode when int? */
2320 push_state(s
, LTTV_STATE_SOFT_IRQ
, submode
);
2324 static gboolean
enum_interrupt(void *hook_data
, void *call_data
)
2326 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2327 LttvTraceState
*ts
= (LttvTraceState
*)s
->parent
.t_context
;
2328 LttEvent
*e
= ltt_tracefile_get_event(s
->parent
.tf
);
2329 //guint8 ev_id = ltt_event_eventtype_id(e);
2330 LttvTraceHook
*th
= (LttvTraceHook
*)hook_data
;
2332 GQuark action
= g_quark_from_string(ltt_event_get_string(e
, th
->f1
));
2333 guint irq
= ltt_event_get_long_unsigned(e
, th
->f2
);
2335 ts
->irq_names
[irq
] = action
;
2341 static gboolean
bdev_request_issue(void *hook_data
, void *call_data
)
2343 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2344 LttvTraceState
*ts
= (LttvTraceState
*)s
->parent
.t_context
;
2345 LttEvent
*e
= ltt_tracefile_get_event(s
->parent
.tf
);
2346 //guint8 ev_id = ltt_event_eventtype_id(e);
2347 LttvTraceHook
*th
= (LttvTraceHook
*)hook_data
;
2349 guint major
= ltt_event_get_long_unsigned(e
, th
->f1
);
2350 guint minor
= ltt_event_get_long_unsigned(e
, th
->f2
);
2351 guint oper
= ltt_event_get_long_unsigned(e
, th
->f3
);
2352 guint16 devcode
= MKDEV(major
,minor
);
2354 /* have we seen this block device before? */
2355 gpointer bdev
= get_hashed_bdevstate(ts
, devcode
);
2358 bdev_push_mode(bdev
, LTTV_BDEV_BUSY_READING
);
2360 bdev_push_mode(bdev
, LTTV_BDEV_BUSY_WRITING
);
2365 static gboolean
bdev_request_complete(void *hook_data
, void *call_data
)
2367 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2368 LttvTraceState
*ts
= (LttvTraceState
*)s
->parent
.t_context
;
2369 LttEvent
*e
= ltt_tracefile_get_event(s
->parent
.tf
);
2370 LttvTraceHook
*th
= (LttvTraceHook
*)hook_data
;
2372 guint major
= ltt_event_get_long_unsigned(e
, th
->f1
);
2373 guint minor
= ltt_event_get_long_unsigned(e
, th
->f2
);
2374 //guint oper = ltt_event_get_long_unsigned(e, th->f3);
2375 guint16 devcode
= MKDEV(major
,minor
);
2377 /* have we seen this block device before? */
2378 gpointer bdev
= get_hashed_bdevstate(ts
, devcode
);
2380 /* update block device */
2381 bdev_pop_mode(bdev
);
2386 static void push_function(LttvTracefileState
*tfs
, guint64 funcptr
)
2390 LttvTraceState
*ts
= (LttvTraceState
*)tfs
->parent
.t_context
;
2391 guint cpu
= tfs
->cpu
;
2392 LttvProcessState
*process
= ts
->running_process
[cpu
];
2394 guint depth
= process
->user_stack
->len
;
2396 process
->user_stack
=
2397 g_array_set_size(process
->user_stack
, depth
+ 1);
2399 new_func
= &g_array_index(process
->user_stack
, guint64
, depth
);
2400 *new_func
= funcptr
;
2401 process
->current_function
= funcptr
;
2404 static void pop_function(LttvTracefileState
*tfs
, guint64 funcptr
)
2406 guint cpu
= tfs
->cpu
;
2407 LttvTraceState
*ts
= (LttvTraceState
*)tfs
->parent
.t_context
;
2408 LttvProcessState
*process
= ts
->running_process
[cpu
];
2410 if(process
->current_function
!= funcptr
){
2411 g_info("Different functions (%lu.%09lu): ignore it\n",
2412 tfs
->parent
.timestamp
.tv_sec
, tfs
->parent
.timestamp
.tv_nsec
);
2413 g_info("process state has %llu when pop_function is %llu\n",
2414 process
->current_function
, funcptr
);
2415 g_info("{ %u, %u, %s, %s, %s }\n",
2418 g_quark_to_string(process
->name
),
2419 g_quark_to_string(process
->brand
),
2420 g_quark_to_string(process
->state
->s
));
2423 guint depth
= process
->user_stack
->len
;
2426 g_info("Trying to pop last function on stack (%lu.%09lu): ignore it\n",
2427 tfs
->parent
.timestamp
.tv_sec
, tfs
->parent
.timestamp
.tv_nsec
);
2431 process
->user_stack
=
2432 g_array_set_size(process
->user_stack
, depth
- 1);
2433 process
->current_function
=
2434 g_array_index(process
->user_stack
, guint64
, depth
- 2);
2438 static gboolean
function_entry(void *hook_data
, void *call_data
)
2440 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2441 LttEvent
*e
= ltt_tracefile_get_event(s
->parent
.tf
);
2442 //guint8 ev_id = ltt_event_eventtype_id(e);
2443 LttvTraceHook
*th
= (LttvTraceHook
*)hook_data
;
2444 g_assert(th
->f1
!= NULL
);
2445 struct marker_field
*f
= th
->f1
;
2446 guint64 funcptr
= ltt_event_get_long_unsigned(e
, f
);
2448 push_function(s
, funcptr
);
2452 static gboolean
function_exit(void *hook_data
, void *call_data
)
2454 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2455 LttEvent
*e
= ltt_tracefile_get_event(s
->parent
.tf
);
2456 //guint8 ev_id = ltt_event_eventtype_id(e);
2457 LttvTraceHook
*th
= (LttvTraceHook
*)hook_data
;
2458 g_assert(th
->f1
!= NULL
);
2459 struct marker_field
*f
= th
->f1
;
2460 guint64 funcptr
= ltt_event_get_long_unsigned(e
, f
);
2462 pop_function(s
, funcptr
);
2466 static gboolean
schedchange(void *hook_data
, void *call_data
)
2468 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2470 LttvTraceState
*ts
= (LttvTraceState
*)s
->parent
.t_context
;
2471 LttvProcessState
*process
= ts
->running_process
[cpu
];
2472 //LttvProcessState *old_process = ts->running_process[cpu];
2474 LttEvent
*e
= ltt_tracefile_get_event(s
->parent
.tf
);
2475 LttvTraceHook
*th
= (LttvTraceHook
*)hook_data
;
2476 guint pid_in
, pid_out
;
2479 pid_out
= ltt_event_get_unsigned(e
, th
->f1
);
2480 pid_in
= ltt_event_get_unsigned(e
, th
->f2
);
2481 state_out
= ltt_event_get_long_int(e
, th
->f3
);
2483 if(likely(process
!= NULL
)) {
2485 /* We could not know but it was not the idle process executing.
2486 This should only happen at the beginning, before the first schedule
2487 event, and when the initial information (current process for each CPU)
2488 is missing. It is not obvious how we could, after the fact, compensate
2489 the wrongly attributed statistics. */
2491 //This test only makes sense once the state is known and if there is no
2492 //missing events. We need to silently ignore schedchange coming after a
2493 //process_free, or it causes glitches. (FIXME)
2494 //if(unlikely(process->pid != pid_out)) {
2495 // g_assert(process->pid == 0);
2497 if(process
->pid
== 0
2498 && process
->state
->t
== LTTV_STATE_MODE_UNKNOWN
) {
2500 /* Scheduling out of pid 0 at beginning of the trace :
2501 * we know for sure it is in syscall mode at this point. */
2502 g_assert(process
->execution_stack
->len
== 1);
2503 process
->state
->t
= LTTV_STATE_SYSCALL
;
2504 process
->state
->s
= LTTV_STATE_WAIT
;
2505 process
->state
->change
= s
->parent
.timestamp
;
2506 process
->state
->entry
= s
->parent
.timestamp
;
2509 if(unlikely(process
->state
->s
== LTTV_STATE_EXIT
)) {
2510 process
->state
->s
= LTTV_STATE_ZOMBIE
;
2511 process
->state
->change
= s
->parent
.timestamp
;
2513 if(unlikely(state_out
== 0)) process
->state
->s
= LTTV_STATE_WAIT_CPU
;
2514 else process
->state
->s
= LTTV_STATE_WAIT
;
2515 process
->state
->change
= s
->parent
.timestamp
;
2518 if(state_out
== 32 || state_out
== 128)
2519 exit_process(s
, process
); /* EXIT_DEAD || TASK_DEAD */
2520 /* see sched.h for states */
2523 process
= ts
->running_process
[cpu
] =
2524 lttv_state_find_process_or_create(
2525 (LttvTraceState
*)s
->parent
.t_context
,
2527 &s
->parent
.timestamp
);
2528 process
->state
->s
= LTTV_STATE_RUN
;
2530 if(process
->usertrace
)
2531 process
->usertrace
->cpu
= cpu
;
2532 // process->last_cpu_index = ltt_tracefile_num(((LttvTracefileContext*)s)->tf);
2533 process
->state
->change
= s
->parent
.timestamp
;
2535 /* update cpu status */
2537 cpu_set_base_mode(s
->cpu_state
, LTTV_CPU_IDLE
);
2539 cpu_set_base_mode(s
->cpu_state
, LTTV_CPU_BUSY
);
2544 static gboolean
process_fork(void *hook_data
, void *call_data
)
2546 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2547 LttEvent
*e
= ltt_tracefile_get_event(s
->parent
.tf
);
2548 LttvTraceHook
*th
= (LttvTraceHook
*)hook_data
;
2550 guint child_pid
; /* In the Linux Kernel, there is one PID per thread. */
2551 guint child_tgid
; /* tgid in the Linux kernel is the "real" POSIX PID. */
2552 //LttvProcessState *zombie_process;
2554 LttvTraceState
*ts
= (LttvTraceState
*)s
->parent
.t_context
;
2555 LttvProcessState
*process
= ts
->running_process
[cpu
];
2556 LttvProcessState
*child_process
;
2559 parent_pid
= ltt_event_get_unsigned(e
, th
->f1
);
2562 child_pid
= ltt_event_get_unsigned(e
, th
->f2
);
2563 s
->parent
.target_pid
= child_pid
;
2566 if(th
->f3
) child_tgid
= ltt_event_get_unsigned(e
, th
->f3
);
2567 else child_tgid
= 0;
2569 /* Mathieu : it seems like the process might have been scheduled in before the
2570 * fork, and, in a rare case, might be the current process. This might happen
2571 * in a SMP case where we don't have enough precision on the clocks.
2573 * Test reenabled after precision fixes on time. (Mathieu) */
2575 zombie_process
= lttv_state_find_process(ts
, ANY_CPU
, child_pid
);
2577 if(unlikely(zombie_process
!= NULL
)) {
2578 /* Reutilisation of PID. Only now we are sure that the old PID
2579 * has been released. FIXME : should know when release_task happens instead.
2581 guint num_cpus
= ltt_trace_get_num_cpu(ts
->parent
.t
);
2583 for(i
=0; i
< num_cpus
; i
++) {
2584 g_assert(zombie_process
!= ts
->running_process
[i
]);
2587 exit_process(s
, zombie_process
);
2590 g_assert(process
->pid
!= child_pid
);
2591 // FIXME : Add this test in the "known state" section
2592 // g_assert(process->pid == parent_pid);
2593 child_process
= lttv_state_find_process(ts
, ANY_CPU
, child_pid
);
2594 if(child_process
== NULL
) {
2595 child_process
= lttv_state_create_process(ts
, process
, cpu
,
2596 child_pid
, child_tgid
,
2597 LTTV_STATE_UNNAMED
, &s
->parent
.timestamp
);
2599 /* The process has already been created : due to time imprecision between
2600 * multiple CPUs : it has been scheduled in before creation. Note that we
2601 * shouldn't have this kind of imprecision.
2603 * Simply put a correct parent.
2605 g_assert(0); /* This is a problematic case : the process has been created
2606 before the fork event */
2607 child_process
->ppid
= process
->pid
;
2608 child_process
->tgid
= child_tgid
;
2610 g_assert(child_process
->name
== LTTV_STATE_UNNAMED
);
2611 child_process
->name
= process
->name
;
2612 child_process
->brand
= process
->brand
;
2617 /* We stamp a newly created process as kernel_thread.
2618 * The thread should not be running yet. */
2619 static gboolean
process_kernel_thread(void *hook_data
, void *call_data
)
2621 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2622 LttEvent
*e
= ltt_tracefile_get_event(s
->parent
.tf
);
2623 LttvTraceHook
*th
= (LttvTraceHook
*)hook_data
;
2625 LttvTraceState
*ts
= (LttvTraceState
*)s
->parent
.t_context
;
2626 LttvProcessState
*process
;
2627 LttvExecutionState
*es
;
2630 pid
= (guint
)ltt_event_get_long_unsigned(e
, th
->f1
);
2631 s
->parent
.target_pid
= pid
;
2633 process
= lttv_state_find_process_or_create(ts
, ANY_CPU
, pid
,
2635 process
->execution_stack
=
2636 g_array_set_size(process
->execution_stack
, 1);
2637 es
= process
->state
=
2638 &g_array_index(process
->execution_stack
, LttvExecutionState
, 0);
2639 es
->t
= LTTV_STATE_SYSCALL
;
2640 process
->type
= LTTV_STATE_KERNEL_THREAD
;
2645 static gboolean
process_exit(void *hook_data
, void *call_data
)
2647 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2648 LttEvent
*e
= ltt_tracefile_get_event(s
->parent
.tf
);
2649 LttvTraceHook
*th
= (LttvTraceHook
*)hook_data
;
2651 LttvTraceState
*ts
= (LttvTraceState
*)s
->parent
.t_context
;
2652 LttvProcessState
*process
; // = ts->running_process[cpu];
2654 pid
= ltt_event_get_unsigned(e
, th
->f1
);
2655 s
->parent
.target_pid
= pid
;
2657 // FIXME : Add this test in the "known state" section
2658 // g_assert(process->pid == pid);
2660 process
= lttv_state_find_process(ts
, ANY_CPU
, pid
);
2661 if(likely(process
!= NULL
)) {
2662 process
->state
->s
= LTTV_STATE_EXIT
;
2667 static gboolean
process_free(void *hook_data
, void *call_data
)
2669 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2670 LttvTraceState
*ts
= (LttvTraceState
*)s
->parent
.t_context
;
2671 LttEvent
*e
= ltt_tracefile_get_event(s
->parent
.tf
);
2672 LttvTraceHook
*th
= (LttvTraceHook
*)hook_data
;
2674 LttvProcessState
*process
;
2676 /* PID of the process to release */
2677 release_pid
= ltt_event_get_unsigned(e
, th
->f1
);
2678 s
->parent
.target_pid
= release_pid
;
2680 g_assert(release_pid
!= 0);
2682 process
= lttv_state_find_process(ts
, ANY_CPU
, release_pid
);
2684 if(likely(process
!= NULL
)) {
2685 /* release_task is happening at kernel level : we can now safely release
2686 * the data structure of the process */
2687 //This test is fun, though, as it may happen that
2688 //at time t : CPU 0 : process_free
2689 //at time t+150ns : CPU 1 : schedule out
2690 //Clearly due to time imprecision, we disable it. (Mathieu)
2691 //If this weird case happen, we have no choice but to put the
2692 //Currently running process on the cpu to 0.
2693 //I re-enable it following time precision fixes. (Mathieu)
2694 //Well, in the case where an process is freed by a process on another CPU
2695 //and still scheduled, it happens that this is the schedchange that will
2696 //drop the last reference count. Do not free it here!
2697 guint num_cpus
= ltt_trace_get_num_cpu(ts
->parent
.t
);
2699 for(i
=0; i
< num_cpus
; i
++) {
2700 //g_assert(process != ts->running_process[i]);
2701 if(process
== ts
->running_process
[i
]) {
2702 //ts->running_process[i] = lttv_state_find_process(ts, i, 0);
2706 if(i
== num_cpus
) /* process is not scheduled */
2707 exit_process(s
, process
);
2714 static gboolean
process_exec(void *hook_data
, void *call_data
)
2716 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2717 LttvTraceState
*ts
= (LttvTraceState
*)s
->parent
.t_context
;
2718 LttEvent
*e
= ltt_tracefile_get_event(s
->parent
.tf
);
2719 LttvTraceHook
*th
= (LttvTraceHook
*)hook_data
;
2722 LttvProcessState
*process
= ts
->running_process
[cpu
];
2724 #if 0//how to use a sequence that must be transformed in a string
2725 /* PID of the process to release */
2726 guint64 name_len
= ltt_event_field_element_number(e
, thf
->f1
);
2727 //name = ltt_event_get_string(e, thf->f1);
2728 LttField
*child
= ltt_event_field_element_select(e
, thf
->f1
, 0);
2730 (gchar
*)(ltt_event_data(e
)+ltt_event_field_offset(e
, child
));
2731 gchar
*null_term_name
= g_new(gchar
, name_len
+1);
2732 memcpy(null_term_name
, name_begin
, name_len
);
2733 null_term_name
[name_len
] = '\0';
2734 process
->name
= g_quark_from_string(null_term_name
);
2737 process
->name
= g_quark_from_string(ltt_event_get_string(e
, th
->f1
));
2738 process
->brand
= LTTV_STATE_UNBRANDED
;
2739 //g_free(null_term_name);
2743 static gboolean
thread_brand(void *hook_data
, void *call_data
)
2745 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2746 LttvTraceState
*ts
= (LttvTraceState
*)s
->parent
.t_context
;
2747 LttEvent
*e
= ltt_tracefile_get_event(s
->parent
.tf
);
2748 LttvTraceHook
*th
= (LttvTraceHook
*)hook_data
;
2751 LttvProcessState
*process
= ts
->running_process
[cpu
];
2753 name
= ltt_event_get_string(e
, th
->f1
);
2754 process
->brand
= g_quark_from_string(name
);
2759 static void fix_process(gpointer key
, gpointer value
,
2762 LttvProcessState
*process
;
2763 LttvExecutionState
*es
;
2764 process
= (LttvProcessState
*)value
;
2765 LttTime
*timestamp
= (LttTime
*)user_data
;
2767 if(process
->type
== LTTV_STATE_KERNEL_THREAD
) {
2768 es
= &g_array_index(process
->execution_stack
, LttvExecutionState
, 0);
2769 if(es
->t
== LTTV_STATE_MODE_UNKNOWN
) {
2770 es
->t
= LTTV_STATE_SYSCALL
;
2771 es
->n
= LTTV_STATE_SUBMODE_NONE
;
2772 es
->entry
= *timestamp
;
2773 es
->change
= *timestamp
;
2774 es
->cum_cpu_time
= ltt_time_zero
;
2775 if(es
->s
== LTTV_STATE_UNNAMED
)
2776 es
->s
= LTTV_STATE_WAIT
;
2779 es
= &g_array_index(process
->execution_stack
, LttvExecutionState
, 0);
2780 if(es
->t
== LTTV_STATE_MODE_UNKNOWN
) {
2781 es
->t
= LTTV_STATE_USER_MODE
;
2782 es
->n
= LTTV_STATE_SUBMODE_NONE
;
2783 es
->entry
= *timestamp
;
2784 //g_assert(timestamp->tv_sec != 0);
2785 es
->change
= *timestamp
;
2786 es
->cum_cpu_time
= ltt_time_zero
;
2787 if(es
->s
== LTTV_STATE_UNNAMED
)
2788 es
->s
= LTTV_STATE_RUN
;
2790 if(process
->execution_stack
->len
== 1) {
2791 /* Still in bottom unknown mode, means never did a system call
2792 * May be either in user mode, syscall mode, running or waiting.*/
2793 /* FIXME : we may be tagging syscall mode when being user mode */
2794 process
->execution_stack
=
2795 g_array_set_size(process
->execution_stack
, 2);
2796 es
= process
->state
= &g_array_index(process
->execution_stack
,
2797 LttvExecutionState
, 1);
2798 es
->t
= LTTV_STATE_SYSCALL
;
2799 es
->n
= LTTV_STATE_SUBMODE_NONE
;
2800 es
->entry
= *timestamp
;
2801 //g_assert(timestamp->tv_sec != 0);
2802 es
->change
= *timestamp
;
2803 es
->cum_cpu_time
= ltt_time_zero
;
2804 if(es
->s
== LTTV_STATE_WAIT_FORK
)
2805 es
->s
= LTTV_STATE_WAIT
;
2811 static gboolean
statedump_end(void *hook_data
, void *call_data
)
2813 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2814 LttvTraceState
*ts
= (LttvTraceState
*)s
->parent
.t_context
;
2815 LttvTracefileContext
*tfc
= (LttvTracefileContext
*)call_data
;
2816 //LttEvent *e = ltt_tracefile_get_event(s->parent.tf);
2817 //LttvTraceHook *th = (LttvTraceHook *)hook_data;
2819 /* For all processes */
2820 /* if kernel thread, if stack[0] is unknown, set to syscall mode, wait */
2821 /* else, if stack[0] is unknown, set to user mode, running */
2823 g_hash_table_foreach(ts
->processes
, fix_process
, &tfc
->timestamp
);
2828 static gboolean
enum_process_state(void *hook_data
, void *call_data
)
2830 LttvTracefileState
*s
= (LttvTracefileState
*)call_data
;
2831 LttEvent
*e
= ltt_tracefile_get_event(s
->parent
.tf
);
2832 //It's slow : optimise later by doing this before reading trace.
2833 LttvTraceHook
*th
= (LttvTraceHook
*)hook_data
;
2839 LttvTraceState
*ts
= (LttvTraceState
*)s
->parent
.t_context
;
2840 LttvProcessState
*process
= ts
->running_process
[cpu
];
2841 LttvProcessState
*parent_process
;
2842 struct marker_field
*f4
, *f5
, *f6
, *f7
, *f8
;
2843 GQuark type
, mode
, submode
, status
;
2844 LttvExecutionState
*es
;
2846 struct marker_info
*mi
;
2849 pid
= ltt_event_get_unsigned(e
, th
->f1
);
2850 s
->parent
.target_pid
= pid
;
2853 parent_pid
= ltt_event_get_unsigned(e
, th
->f2
);
2856 command
= ltt_event_get_string(e
, th
->f3
);
2859 mi
= marker_get_info_from_id(ts
->parent
.t
, e
->event_id
);
2860 f4
= marker_get_field(mi
, 3);
2861 g_assert(f4
->name
== LTT_FIELD_TYPE
);
2862 type
= ltt_enum_string_get(ltt_field_type(f4
),
2863 ltt_event_get_unsigned(e
, f4
));
2866 f5
= marker_get_field(mi
, 4);
2867 g_assert(f5
->name
== LTT_FIELD_MODE
);
2868 mode
= ltt_enum_string_get(ltt_field_type(f5
),
2869 ltt_event_get_unsigned(e
, f5
));
2872 f6
= marker_get_field(mi
, 5);
2873 g_assert(f6
->name
== LTT_FIELD_SUBMODE
);
2874 submode
= ltt_enum_string_get(ltt_field_type(f6
),
2875 ltt_event_get_unsigned(e
, f6
));
2878 f7
= marker_get_field(mi
, 6);
2879 g_assert(f7
->name
== LTT_FIELD_STATUS
);
2880 status
= ltt_enum_string_get(ltt_field_type(f7
),
2881 ltt_event_get_unsigned(e
, f7
));
2884 f8
= marker_get_field(mi
, 7);
2885 g_assert(f8
->name
== LTT_FIELD_TGID
);
2886 if(f8
) tgid
= ltt_event_get_unsigned(e
, f8
);
2891 nb_cpus
= ltt_trace_get_num_cpu(ts
->parent
.t
);
2892 for(i
=0; i
<nb_cpus
; i
++) {
2893 process
= lttv_state_find_process(ts
, i
, pid
);
2894 g_assert(process
!= NULL
);
2896 process
->ppid
= parent_pid
;
2897 process
->tgid
= tgid
;
2898 process
->name
= g_quark_from_string(command
);
2900 &g_array_index(process
->execution_stack
, LttvExecutionState
, 0);
2901 process
->type
= LTTV_STATE_KERNEL_THREAD
;
2905 /* The process might exist if a process was forked while performing the
2907 process
= lttv_state_find_process(ts
, ANY_CPU
, pid
);
2908 if(process
== NULL
) {
2909 parent_process
= lttv_state_find_process(ts
, ANY_CPU
, parent_pid
);
2910 process
= lttv_state_create_process(ts
, parent_process
, cpu
,
2911 pid
, tgid
, g_quark_from_string(command
),
2912 &s
->parent
.timestamp
);
2914 /* Keep the stack bottom : a running user mode */
2915 /* Disabled because of inconsistencies in the current statedump states. */
2916 if(type
== LTTV_STATE_KERNEL_THREAD
) {
2917 /* Only keep the bottom
2918 * FIXME Kernel thread : can be in syscall or interrupt or trap. */
2919 /* Will cause expected trap when in fact being syscall (even after end of
2921 * Will cause expected interrupt when being syscall. (only before end of
2922 * statedump event) */
2923 // This will cause a "popping last state on stack, ignoring it."
2924 process
->execution_stack
= g_array_set_size(process
->execution_stack
, 1);
2925 es
= process
->state
= &g_array_index(process
->execution_stack
,
2926 LttvExecutionState
, 0);
2927 process
->type
= LTTV_STATE_KERNEL_THREAD
;
2928 es
->t
= LTTV_STATE_MODE_UNKNOWN
;
2929 es
->s
= LTTV_STATE_UNNAMED
;
2930 es
->n
= LTTV_STATE_SUBMODE_UNKNOWN
;
2932 es
->t
= LTTV_STATE_SYSCALL
;
2937 /* User space process :
2938 * bottom : user mode
2939 * either currently running or scheduled out.
2940 * can be scheduled out because interrupted in (user mode or in syscall)
2941 * or because of an explicit call to the scheduler in syscall. Note that
2942 * the scheduler call comes after the irq_exit, so never in interrupt
2944 // temp workaround : set size to 1 : only have user mode bottom of stack.
2945 // will cause g_info message of expected syscall mode when in fact being
2946 // in user mode. Can also cause expected trap when in fact being user
2947 // mode in the event of a page fault reenabling interrupts in the handler.
2948 // Expected syscall and trap can also happen after the end of statedump
2949 // This will cause a "popping last state on stack, ignoring it."
2950 process
->execution_stack
= g_array_set_size(process
->execution_stack
, 1);
2951 es
= process
->state
= &g_array_index(process
->execution_stack
,
2952 LttvExecutionState
, 0);
2953 es
->t
= LTTV_STATE_MODE_UNKNOWN
;
2954 es
->s
= LTTV_STATE_UNNAMED
;
2955 es
->n
= LTTV_STATE_SUBMODE_UNKNOWN
;
2957 es
->t
= LTTV_STATE_USER_MODE
;
2965 es
= process
->state
= &g_array_index(process
->execution_stack
,
2966 LttvExecutionState
, 1);
2967 es
->t
= LTTV_STATE_MODE_UNKNOWN
;
2968 es
->s
= LTTV_STATE_UNNAMED
;
2969 es
->n
= LTTV_STATE_SUBMODE_UNKNOWN
;
2973 /* The process has already been created :
2974 * Probably was forked while dumping the process state or
2975 * was simply scheduled in prior to get the state dump event.
2977 process
->ppid
= parent_pid
;
2978 process
->tgid
= tgid
;
2979 process
->name
= g_quark_from_string(command
);
2980 process
->type
= type
;
2982 &g_array_index(process
->execution_stack
, LttvExecutionState
, 0);
2984 if(es
->t
== LTTV_STATE_MODE_UNKNOWN
) {
2985 if(type
== LTTV_STATE_KERNEL_THREAD
)
2986 es
->t
= LTTV_STATE_SYSCALL
;
2988 es
->t
= LTTV_STATE_USER_MODE
;
2991 /* Don't mess around with the stack, it will eventually become
2992 * ok after the end of state dump. */
2999 gint
lttv_state_hook_add_event_hooks(void *hook_data
, void *call_data
)
3001 LttvTracesetState
*tss
= (LttvTracesetState
*)(call_data
);
3003 lttv_state_add_event_hooks(tss
);
3008 void lttv_state_add_event_hooks(LttvTracesetState
*self
)
3010 LttvTraceset
*traceset
= self
->parent
.ts
;
3012 guint i
, j
, k
, nb_trace
, nb_tracefile
;
3016 LttvTracefileState
*tfs
;
3022 LttvAttributeValue val
;
3027 nb_trace
= lttv_traceset_number(traceset
);
3028 for(i
= 0 ; i
< nb_trace
; i
++) {
3029 ts
= (LttvTraceState
*)self
->parent
.traces
[i
];
3031 /* Find the eventtype id for the following events and register the
3032 associated by id hooks. */
3034 hooks
= g_array_sized_new(FALSE
, FALSE
, sizeof(LttvTraceHook
), 19);
3035 //hooks = g_array_set_size(hooks, 19); // Max possible number of hooks.
3038 lttv_trace_find_hook(ts
->parent
.t
,
3039 LTT_EVENT_SYSCALL_ENTRY
,
3040 FIELD_ARRAY(LTT_FIELD_SYSCALL_ID
),
3041 syscall_entry
, NULL
, &hooks
);
3043 lttv_trace_find_hook(ts
->parent
.t
,
3044 LTT_EVENT_SYSCALL_EXIT
,
3046 syscall_exit
, NULL
, &hooks
);
3048 lttv_trace_find_hook(ts
->parent
.t
,
3049 LTT_EVENT_TRAP_ENTRY
,
3050 FIELD_ARRAY(LTT_FIELD_TRAP_ID
),
3051 trap_entry
, NULL
, &hooks
);
3053 lttv_trace_find_hook(ts
->parent
.t
,
3054 LTT_EVENT_TRAP_EXIT
,
3056 trap_exit
, NULL
, &hooks
);
3058 lttv_trace_find_hook(ts
->parent
.t
,
3059 LTT_EVENT_IRQ_ENTRY
,
3060 FIELD_ARRAY(LTT_FIELD_IRQ_ID
),
3061 irq_entry
, NULL
, &hooks
);
3063 lttv_trace_find_hook(ts
->parent
.t
,
3066 irq_exit
, NULL
, &hooks
);
3068 lttv_trace_find_hook(ts
->parent
.t
,
3069 LTT_EVENT_SOFT_IRQ_ENTRY
,
3070 FIELD_ARRAY(LTT_FIELD_SOFT_IRQ_ID
),
3071 soft_irq_entry
, NULL
, &hooks
);
3073 lttv_trace_find_hook(ts
->parent
.t
,
3074 LTT_EVENT_SOFT_IRQ_EXIT
,
3076 soft_irq_exit
, NULL
, &hooks
);
3078 lttv_trace_find_hook(ts
->parent
.t
,
3079 LTT_EVENT_SCHED_SCHEDULE
,
3080 FIELD_ARRAY(LTT_FIELD_PREV_PID
, LTT_FIELD_NEXT_PID
,
3081 LTT_FIELD_PREV_STATE
),
3082 schedchange
, NULL
, &hooks
);
3084 lttv_trace_find_hook(ts
->parent
.t
,
3085 LTT_EVENT_PROCESS_FORK
,
3086 FIELD_ARRAY(LTT_FIELD_PARENT_PID
, LTT_FIELD_CHILD_PID
,
3087 LTT_FIELD_CHILD_TGID
),
3088 process_fork
, NULL
, &hooks
);
3090 lttv_trace_find_hook(ts
->parent
.t
,
3091 LTT_EVENT_KTHREAD_CREATE
,
3092 FIELD_ARRAY(LTT_FIELD_PID
)
3093 process_kernel_thread
, NULL
, &hooks
);
3095 lttv_trace_find_hook(ts
->parent
.t
,
3096 LTT_EVENT_PROCESS_EXIT
,
3097 FIELD_ARRAY(LTT_FIELD_PID
),
3098 process_exit
, NULL
, &hooks
);
3100 lttv_trace_find_hook(ts
->parent
.t
,
3101 LTT_EVENT_PROCESS_FREE
,
3102 FIELD_ARRAY(LTT_FIELD_PID
),
3103 process_free
, NULL
, &hooks
);
3105 lttv_trace_find_hook(ts
->parent
.t
,
3107 FIELD_ARRAY(LTT_FIELD_FILENAME
),
3108 process_exec
, NULL
, &hooks
);
3110 lttv_trace_find_hook(ts
->parent
.t
,
3111 LTT_EVENT_THREAD_BRAND
,
3112 FIELD_ARRAY(LTT_FIELD_NAME
),
3113 thread_brand
, NULL
, &hooks
);
3115 /* statedump-related hooks */
3116 lttv_trace_find_hook(ts
->parent
.t
,
3117 LTT_EVENT_PROCESS_STATE
,
3118 FIELD_ARRAY(LTT_FIELD_PID
, LTT_FIELD_PARENT_PID
, LTT_FIELD_NAME
),
3119 enum_process_state
, NULL
, &hooks
);
3121 lttv_trace_find_hook(ts
->parent
.t
,
3122 LTT_EVENT_STATEDUMP_END
,
3124 statedump_end
, NULL
, &hooks
);
3126 lttv_trace_find_hook(ts
->parent
.t
,
3127 LTT_EVENT_LIST_INTERRUPT
,
3128 FIELD_ARRAY(LTT_FIELD_ACTION
, LTT_FIELD_NUM
),
3129 enum_interrupt
, NULL
, &hooks
);
3131 lttv_trace_find_hook(ts
->parent
.t
,
3132 LTT_EVENT_REQUEST_ISSUE
,
3133 FIELD_ARRAY(LTT_FIELD_MAJOR
, LTT_FIELD_MINOR
, LTT_FIELD_OPERATION
),
3134 bdev_request_issue
, NULL
, &hooks
);
3136 lttv_trace_find_hook(ts
->parent
.t
,
3137 LTT_EVENT_REQUEST_COMPLETE
,
3138 FIELD_ARRAY(LTT_FIELD_MAJOR
, LTT_FIELD_MINOR
, LTT_FIELD_OPERATION
),
3139 bdev_request_complete
, NULL
, &hooks
);
3141 lttv_trace_find_hook(ts
->parent
.t
,
3142 LTT_EVENT_FUNCTION_ENTRY
,
3143 FIELD_ARRAY(LTT_FIELD_THIS_FN
, LTT_FIELD_CALL_SITE
),
3144 function_entry
, NULL
, &hooks
);
3146 lttv_trace_find_hook(ts
->parent
.t
,
3147 LTT_EVENT_FUNCTION_EXIT
,
3148 FIELD_ARRAY(LTT_FIELD_THIS_FN
, LTT_FIELD_CALL_SITE
),
3149 function_exit
, NULL
, &hooks
);
3151 /* Add these hooks to each event_by_id hooks list */
3153 nb_tracefile
= ts
->parent
.tracefiles
->len
;
3155 for(j
= 0 ; j
< nb_tracefile
; j
++) {
3157 LTTV_TRACEFILE_STATE(g_array_index(ts
->parent
.tracefiles
,
3158 LttvTracefileContext
*, j
));
3160 for(k
= 0 ; k
< hooks
->len
; k
++) {
3161 th
= &g_array_index(hooks
, LttvTraceHook
, k
);
3163 lttv_hooks_by_id_find(tfs
->parent
.event_by_id
, th
->id
),
3169 lttv_attribute_find(ts
->parent
.a
, LTTV_STATE_HOOKS
, LTTV_POINTER
, &val
);
3170 *(val
.v_pointer
) = hooks
;
3174 gint
lttv_state_hook_remove_event_hooks(void *hook_data
, void *call_data
)
3176 LttvTracesetState
*tss
= (LttvTracesetState
*)(call_data
);
3178 lttv_state_remove_event_hooks(tss
);
3183 void lttv_state_remove_event_hooks(LttvTracesetState
*self
)
3185 LttvTraceset
*traceset
= self
->parent
.ts
;
3187 guint i
, j
, k
, nb_trace
, nb_tracefile
;
3191 LttvTracefileState
*tfs
;
3197 LttvAttributeValue val
;
3199 nb_trace
= lttv_traceset_number(traceset
);
3200 for(i
= 0 ; i
< nb_trace
; i
++) {
3201 ts
= LTTV_TRACE_STATE(self
->parent
.traces
[i
]);
3203 lttv_attribute_find(ts
->parent
.a
, LTTV_STATE_HOOKS
, LTTV_POINTER
, &val
);
3204 hooks
= *(val
.v_pointer
);
3206 /* Remove these hooks from each event_by_id hooks list */
3208 nb_tracefile
= ts
->parent
.tracefiles
->len
;
3210 for(j
= 0 ; j
< nb_tracefile
; j
++) {
3212 LTTV_TRACEFILE_STATE(g_array_index(ts
->parent
.tracefiles
,
3213 LttvTracefileContext
*, j
));
3215 for(k
= 0 ; k
< hooks
->len
; k
++) {
3216 th
= &g_array_index(hooks
, LttvTraceHook
, k
);
3217 lttv_hooks_remove_data(
3218 lttv_hooks_by_id_find(tfs
->parent
.event_by_id
, th
->id
),
3223 lttv_trace_hook_remove_all(&hooks
);
3224 g_array_free(hooks
, TRUE
);
3228 static gboolean
state_save_event_hook(void *hook_data
, void *call_data
)
3230 guint
*event_count
= (guint
*)hook_data
;
3232 /* Only save at LTTV_STATE_SAVE_INTERVAL */
3233 if(likely((*event_count
)++ < LTTV_STATE_SAVE_INTERVAL
))
3238 LttvTracefileState
*self
= (LttvTracefileState
*)call_data
;
3240 LttvTraceState
*tcs
= (LttvTraceState
*)(self
->parent
.t_context
);
3242 LttvAttribute
*saved_states_tree
, *saved_state_tree
;
3244 LttvAttributeValue value
;
3246 saved_states_tree
= lttv_attribute_find_subdir(tcs
->parent
.t_a
,
3247 LTTV_STATE_SAVED_STATES
);
3248 saved_state_tree
= g_object_new(LTTV_ATTRIBUTE_TYPE
, NULL
);
3249 value
= lttv_attribute_add(saved_states_tree
,
3250 lttv_attribute_get_number(saved_states_tree
), LTTV_GOBJECT
);
3251 *(value
.v_gobject
) = (GObject
*)saved_state_tree
;
3252 value
= lttv_attribute_add(saved_state_tree
, LTTV_STATE_TIME
, LTTV_TIME
);
3253 *(value
.v_time
) = self
->parent
.timestamp
;
3254 lttv_state_save(tcs
, saved_state_tree
);
3255 g_debug("Saving state at time %lu.%lu", self
->parent
.timestamp
.tv_sec
,
3256 self
->parent
.timestamp
.tv_nsec
);
3258 *(tcs
->max_time_state_recomputed_in_seek
) = self
->parent
.timestamp
;
3263 static gboolean
state_save_after_trace_hook(void *hook_data
, void *call_data
)
3265 LttvTraceState
*tcs
= (LttvTraceState
*)(call_data
);
3267 *(tcs
->max_time_state_recomputed_in_seek
) = tcs
->parent
.time_span
.end_time
;
3272 guint
lttv_state_current_cpu(LttvTracefileState
*tfs
)
3280 static gboolean
block_start(void *hook_data
, void *call_data
)
3282 LttvTracefileState
*self
= (LttvTracefileState
*)call_data
;
3284 LttvTracefileState
*tfcs
;
3286 LttvTraceState
*tcs
= (LttvTraceState
*)(self
->parent
.t_context
);
3288 LttEventPosition
*ep
;
3290 guint i
, nb_block
, nb_event
, nb_tracefile
;
3294 LttvAttribute
*saved_states_tree
, *saved_state_tree
;
3296 LttvAttributeValue value
;
3298 ep
= ltt_event_position_new();
3300 nb_tracefile
= tcs
->parent
.tracefiles
->len
;
3302 /* Count the number of events added since the last block end in any
3305 for(i
= 0 ; i
< nb_tracefile
; i
++) {
3307 LTTV_TRACEFILE_STATE(&g_array_index(tcs
->parent
.tracefiles
,
3308 LttvTracefileContext
, i
));
3309 ltt_event_position(tfcs
->parent
.e
, ep
);
3310 ltt_event_position_get(ep
, &nb_block
, &nb_event
, &tf
);
3311 tcs
->nb_event
+= nb_event
- tfcs
->saved_position
;
3312 tfcs
->saved_position
= nb_event
;
3316 if(tcs
->nb_event
>= tcs
->save_interval
) {
3317 saved_states_tree
= lttv_attribute_find_subdir(tcs
->parent
.t_a
,
3318 LTTV_STATE_SAVED_STATES
);
3319 saved_state_tree
= g_object_new(LTTV_ATTRIBUTE_TYPE
, NULL
);
3320 value
= lttv_attribute_add(saved_states_tree
,
3321 lttv_attribute_get_number(saved_states_tree
), LTTV_GOBJECT
);
3322 *(value
.v_gobject
) = (GObject
*)saved_state_tree
;
3323 value
= lttv_attribute_add(saved_state_tree
, LTTV_STATE_TIME
, LTTV_TIME
);
3324 *(value
.v_time
) = self
->parent
.timestamp
;
3325 lttv_state_save(tcs
, saved_state_tree
);
3327 g_debug("Saving state at time %lu.%lu", self
->parent
.timestamp
.tv_sec
,
3328 self
->parent
.timestamp
.tv_nsec
);
3330 *(tcs
->max_time_state_recomputed_in_seek
) = self
->parent
.timestamp
;
3336 static gboolean
block_end(void *hook_data
, void *call_data
)
3338 LttvTracefileState
*self
= (LttvTracefileState
*)call_data
;
3340 LttvTraceState
*tcs
= (LttvTraceState
*)(self
->parent
.t_context
);
3344 LttEventPosition
*ep
;
3346 guint nb_block
, nb_event
;
3348 ep
= ltt_event_position_new();
3349 ltt_event_position(self
->parent
.e
, ep
);
3350 ltt_event_position_get(ep
, &nb_block
, &nb_event
, &tf
);
3351 tcs
->nb_event
+= nb_event
- self
->saved_position
+ 1;
3352 self
->saved_position
= 0;
3353 *(tcs
->max_time_state_recomputed_in_seek
) = self
->parent
.timestamp
;
3360 void lttv_state_save_add_event_hooks(LttvTracesetState
*self
)
3362 LttvTraceset
*traceset
= self
->parent
.ts
;
3364 guint i
, j
, nb_trace
, nb_tracefile
;
3368 LttvTracefileState
*tfs
;
3370 LttvTraceHook hook_start
, hook_end
;
3372 nb_trace
= lttv_traceset_number(traceset
);
3373 for(i
= 0 ; i
< nb_trace
; i
++) {
3374 ts
= (LttvTraceState
*)self
->parent
.traces
[i
];
3376 lttv_trace_find_hook(ts
->parent
.t
, "core","block_start",NULL
,
3377 NULL
, NULL
, block_start
, &hook_start
);
3378 lttv_trace_find_hook(ts
->parent
.t
, "core","block_end",NULL
,
3379 NULL
, NULL
, block_end
, &hook_end
);
3381 nb_tracefile
= ts
->parent
.tracefiles
->len
;
3383 for(j
= 0 ; j
< nb_tracefile
; j
++) {
3385 LTTV_TRACEFILE_STATE(&g_array_index(ts
->parent
.tracefiles
,
3386 LttvTracefileContext
, j
));
3387 lttv_hooks_add(lttv_hooks_by_id_find(tfs
->parent
.event_by_id
,
3388 hook_start
.id
), hook_start
.h
, NULL
, LTTV_PRIO_STATE
);
3389 lttv_hooks_add(lttv_hooks_by_id_find(tfs
->parent
.event_by_id
,
3390 hook_end
.id
), hook_end
.h
, NULL
, LTTV_PRIO_STATE
);
3396 void lttv_state_save_add_event_hooks(LttvTracesetState
*self
)
3398 LttvTraceset
*traceset
= self
->parent
.ts
;
3400 guint i
, j
, nb_trace
, nb_tracefile
;
3404 LttvTracefileState
*tfs
;
3407 nb_trace
= lttv_traceset_number(traceset
);
3408 for(i
= 0 ; i
< nb_trace
; i
++) {
3410 ts
= (LttvTraceState
*)self
->parent
.traces
[i
];
3411 nb_tracefile
= ts
->parent
.tracefiles
->len
;
3413 if(ts
->has_precomputed_states
) continue;
3415 guint
*event_count
= g_new(guint
, 1);
3418 for(j
= 0 ; j
< nb_tracefile
; j
++) {
3420 LTTV_TRACEFILE_STATE(g_array_index(ts
->parent
.tracefiles
,
3421 LttvTracefileContext
*, j
));
3422 lttv_hooks_add(tfs
->parent
.event
,
3423 state_save_event_hook
,
3430 lttv_process_traceset_begin(&self
->parent
,
3431 NULL
, NULL
, NULL
, NULL
, NULL
);
3435 gint
lttv_state_save_hook_add_event_hooks(void *hook_data
, void *call_data
)
3437 LttvTracesetState
*tss
= (LttvTracesetState
*)(call_data
);
3439 lttv_state_save_add_event_hooks(tss
);
3446 void lttv_state_save_remove_event_hooks(LttvTracesetState
*self
)
3448 LttvTraceset
*traceset
= self
->parent
.ts
;
3450 guint i
, j
, nb_trace
, nb_tracefile
;
3454 LttvTracefileState
*tfs
;
3456 LttvTraceHook hook_start
, hook_end
;
3458 nb_trace
= lttv_traceset_number(traceset
);
3459 for(i
= 0 ; i
< nb_trace
; i
++) {
3460 ts
= LTTV_TRACE_STATE(self
->parent
.traces
[i
]);
3462 lttv_trace_find_hook(ts
->parent
.t
, "core","block_start",NULL
,
3463 NULL
, NULL
, block_start
, &hook_start
);
3465 lttv_trace_find_hook(ts
->parent
.t
, "core","block_end",NULL
,
3466 NULL
, NULL
, block_end
, &hook_end
);
3468 nb_tracefile
= ts
->parent
.tracefiles
->len
;
3470 for(j
= 0 ; j
< nb_tracefile
; j
++) {
3472 LTTV_TRACEFILE_STATE(&g_array_index(ts
->parent
.tracefiles
,
3473 LttvTracefileContext
, j
));
3474 lttv_hooks_remove_data(lttv_hooks_by_id_find(
3475 tfs
->parent
.event_by_id
, hook_start
.id
), hook_start
.h
, NULL
);
3476 lttv_hooks_remove_data(lttv_hooks_by_id_find(
3477 tfs
->parent
.event_by_id
, hook_end
.id
), hook_end
.h
, NULL
);
3483 void lttv_state_save_remove_event_hooks(LttvTracesetState
*self
)
3485 LttvTraceset
*traceset
= self
->parent
.ts
;
3487 guint i
, j
, nb_trace
, nb_tracefile
;
3491 LttvTracefileState
*tfs
;
3493 LttvHooks
*after_trace
= lttv_hooks_new();
3495 lttv_hooks_add(after_trace
,
3496 state_save_after_trace_hook
,
3501 lttv_process_traceset_end(&self
->parent
,
3502 NULL
, after_trace
, NULL
, NULL
, NULL
);
3504 lttv_hooks_destroy(after_trace
);
3506 nb_trace
= lttv_traceset_number(traceset
);
3507 for(i
= 0 ; i
< nb_trace
; i
++) {
3509 ts
= (LttvTraceState
*)self
->parent
.traces
[i
];
3510 nb_tracefile
= ts
->parent
.tracefiles
->len
;
3512 if(ts
->has_precomputed_states
) continue;
3514 guint
*event_count
= NULL
;
3516 for(j
= 0 ; j
< nb_tracefile
; j
++) {
3518 LTTV_TRACEFILE_STATE(g_array_index(ts
->parent
.tracefiles
,
3519 LttvTracefileContext
*, j
));
3520 event_count
= lttv_hooks_remove(tfs
->parent
.event
,
3521 state_save_event_hook
);
3523 if(event_count
) g_free(event_count
);
3527 gint
lttv_state_save_hook_remove_event_hooks(void *hook_data
, void *call_data
)
3529 LttvTracesetState
*tss
= (LttvTracesetState
*)(call_data
);
3531 lttv_state_save_remove_event_hooks(tss
);
3536 void lttv_state_traceset_seek_time_closest(LttvTracesetState
*self
, LttTime t
)
3538 LttvTraceset
*traceset
= self
->parent
.ts
;
3542 int min_pos
, mid_pos
, max_pos
;
3544 guint call_rest
= 0;
3546 LttvTraceState
*tcs
;
3548 LttvAttributeValue value
;
3550 LttvAttributeType type
;
3552 LttvAttributeName name
;
3556 LttvAttribute
*saved_states_tree
, *saved_state_tree
, *closest_tree
;
3558 //g_tree_destroy(self->parent.pqueue);
3559 //self->parent.pqueue = g_tree_new(compare_tracefile);
3561 g_info("Entering seek_time_closest for time %lu.%lu", t
.tv_sec
, t
.tv_nsec
);
3563 nb_trace
= lttv_traceset_number(traceset
);
3564 for(i
= 0 ; i
< nb_trace
; i
++) {
3565 tcs
= (LttvTraceState
*)self
->parent
.traces
[i
];
3567 if(ltt_time_compare(t
, *(tcs
->max_time_state_recomputed_in_seek
)) < 0) {
3568 saved_states_tree
= lttv_attribute_find_subdir(tcs
->parent
.t_a
,
3569 LTTV_STATE_SAVED_STATES
);
3572 if(saved_states_tree
) {
3573 max_pos
= lttv_attribute_get_number(saved_states_tree
) - 1;
3574 mid_pos
= max_pos
/ 2;
3575 while(min_pos
< max_pos
) {
3576 type
= lttv_attribute_get(saved_states_tree
, mid_pos
, &name
, &value
,
3578 g_assert(type
== LTTV_GOBJECT
);
3579 saved_state_tree
= *((LttvAttribute
**)(value
.v_gobject
));
3580 type
= lttv_attribute_get_by_name(saved_state_tree
, LTTV_STATE_TIME
,
3582 g_assert(type
== LTTV_TIME
);
3583 if(ltt_time_compare(*(value
.v_time
), t
) < 0) {
3585 closest_tree
= saved_state_tree
;
3587 else max_pos
= mid_pos
- 1;
3589 mid_pos
= (min_pos
+ max_pos
+ 1) / 2;
3593 /* restore the closest earlier saved state */
3595 lttv_state_restore(tcs
, closest_tree
);
3599 /* There is no saved state, yet we want to have it. Restart at T0 */
3601 restore_init_state(tcs
);
3602 lttv_process_trace_seek_time(&(tcs
->parent
), ltt_time_zero
);
3605 /* We want to seek quickly without restoring/updating the state */
3607 restore_init_state(tcs
);
3608 lttv_process_trace_seek_time(&(tcs
->parent
), t
);
3611 if(!call_rest
) g_info("NOT Calling restore");
3616 traceset_state_instance_init (GTypeInstance
*instance
, gpointer g_class
)
3622 traceset_state_finalize (LttvTracesetState
*self
)
3624 G_OBJECT_CLASS(g_type_class_peek(LTTV_TRACESET_CONTEXT_TYPE
))->
3625 finalize(G_OBJECT(self
));
3630 traceset_state_class_init (LttvTracesetContextClass
*klass
)
3632 GObjectClass
*gobject_class
= G_OBJECT_CLASS(klass
);
3634 gobject_class
->finalize
= (void (*)(GObject
*self
)) traceset_state_finalize
;
3635 klass
->init
= (void (*)(LttvTracesetContext
*self
, LttvTraceset
*ts
))init
;
3636 klass
->fini
= (void (*)(LttvTracesetContext
*self
))fini
;
3637 klass
->new_traceset_context
= new_traceset_context
;
3638 klass
->new_trace_context
= new_trace_context
;
3639 klass
->new_tracefile_context
= new_tracefile_context
;
3644 lttv_traceset_state_get_type(void)
3646 static GType type
= 0;
3648 static const GTypeInfo info
= {
3649 sizeof (LttvTracesetStateClass
),
3650 NULL
, /* base_init */
3651 NULL
, /* base_finalize */
3652 (GClassInitFunc
) traceset_state_class_init
, /* class_init */
3653 NULL
, /* class_finalize */
3654 NULL
, /* class_data */
3655 sizeof (LttvTracesetState
),
3656 0, /* n_preallocs */
3657 (GInstanceInitFunc
) traceset_state_instance_init
, /* instance_init */
3658 NULL
/* value handling */
3661 type
= g_type_register_static (LTTV_TRACESET_CONTEXT_TYPE
, "LttvTracesetStateType",
3669 trace_state_instance_init (GTypeInstance
*instance
, gpointer g_class
)
3675 trace_state_finalize (LttvTraceState
*self
)
3677 G_OBJECT_CLASS(g_type_class_peek(LTTV_TRACE_CONTEXT_TYPE
))->
3678 finalize(G_OBJECT(self
));
3683 trace_state_class_init (LttvTraceStateClass
*klass
)
3685 GObjectClass
*gobject_class
= G_OBJECT_CLASS(klass
);
3687 gobject_class
->finalize
= (void (*)(GObject
*self
)) trace_state_finalize
;
3688 klass
->state_save
= state_save
;
3689 klass
->state_restore
= state_restore
;
3690 klass
->state_saved_free
= state_saved_free
;
3695 lttv_trace_state_get_type(void)
3697 static GType type
= 0;
3699 static const GTypeInfo info
= {
3700 sizeof (LttvTraceStateClass
),
3701 NULL
, /* base_init */
3702 NULL
, /* base_finalize */
3703 (GClassInitFunc
) trace_state_class_init
, /* class_init */
3704 NULL
, /* class_finalize */
3705 NULL
, /* class_data */
3706 sizeof (LttvTraceState
),
3707 0, /* n_preallocs */
3708 (GInstanceInitFunc
) trace_state_instance_init
, /* instance_init */
3709 NULL
/* value handling */
3712 type
= g_type_register_static (LTTV_TRACE_CONTEXT_TYPE
,
3713 "LttvTraceStateType", &info
, 0);
3720 tracefile_state_instance_init (GTypeInstance
*instance
, gpointer g_class
)
3726 tracefile_state_finalize (LttvTracefileState
*self
)
3728 G_OBJECT_CLASS(g_type_class_peek(LTTV_TRACEFILE_CONTEXT_TYPE
))->
3729 finalize(G_OBJECT(self
));
3734 tracefile_state_class_init (LttvTracefileStateClass
*klass
)
3736 GObjectClass
*gobject_class
= G_OBJECT_CLASS(klass
);
3738 gobject_class
->finalize
= (void (*)(GObject
*self
)) tracefile_state_finalize
;
3743 lttv_tracefile_state_get_type(void)
3745 static GType type
= 0;
3747 static const GTypeInfo info
= {
3748 sizeof (LttvTracefileStateClass
),
3749 NULL
, /* base_init */
3750 NULL
, /* base_finalize */
3751 (GClassInitFunc
) tracefile_state_class_init
, /* class_init */
3752 NULL
, /* class_finalize */
3753 NULL
, /* class_data */
3754 sizeof (LttvTracefileState
),
3755 0, /* n_preallocs */
3756 (GInstanceInitFunc
) tracefile_state_instance_init
, /* instance_init */
3757 NULL
/* value handling */
3760 type
= g_type_register_static (LTTV_TRACEFILE_CONTEXT_TYPE
,
3761 "LttvTracefileStateType", &info
, 0);
3767 static void module_init()
3769 LTTV_STATE_UNNAMED
= g_quark_from_string("UNNAMED");
3770 LTTV_STATE_UNBRANDED
= g_quark_from_string("UNBRANDED");
3771 LTTV_STATE_MODE_UNKNOWN
= g_quark_from_string("MODE_UNKNOWN");
3772 LTTV_STATE_USER_MODE
= g_quark_from_string("USER_MODE");
3773 LTTV_STATE_SYSCALL
= g_quark_from_string("SYSCALL");
3774 LTTV_STATE_TRAP
= g_quark_from_string("TRAP");
3775 LTTV_STATE_IRQ
= g_quark_from_string("IRQ");
3776 LTTV_STATE_SOFT_IRQ
= g_quark_from_string("SOFTIRQ");
3777 LTTV_STATE_SUBMODE_UNKNOWN
= g_quark_from_string("UNKNOWN");
3778 LTTV_STATE_SUBMODE_NONE
= g_quark_from_string("NONE");
3779 LTTV_STATE_WAIT_FORK
= g_quark_from_string("WAIT_FORK");
3780 LTTV_STATE_WAIT_CPU
= g_quark_from_string("WAIT_CPU");
3781 LTTV_STATE_EXIT
= g_quark_from_string("EXIT");
3782 LTTV_STATE_ZOMBIE
= g_quark_from_string("ZOMBIE");
3783 LTTV_STATE_WAIT
= g_quark_from_string("WAIT");
3784 LTTV_STATE_RUN
= g_quark_from_string("RUN");
3785 LTTV_STATE_DEAD
= g_quark_from_string("DEAD");
3786 LTTV_STATE_USER_THREAD
= g_quark_from_string("USER_THREAD");
3787 LTTV_STATE_KERNEL_THREAD
= g_quark_from_string("KERNEL_THREAD");
3788 LTTV_STATE_TRACEFILES
= g_quark_from_string("tracefiles");
3789 LTTV_STATE_PROCESSES
= g_quark_from_string("processes");
3790 LTTV_STATE_PROCESS
= g_quark_from_string("process");
3791 LTTV_STATE_RUNNING_PROCESS
= g_quark_from_string("running_process");
3792 LTTV_STATE_EVENT
= g_quark_from_string("event");
3793 LTTV_STATE_SAVED_STATES
= g_quark_from_string("saved states");
3794 LTTV_STATE_SAVED_STATES_TIME
= g_quark_from_string("saved states time");
3795 LTTV_STATE_TIME
= g_quark_from_string("time");
3796 LTTV_STATE_HOOKS
= g_quark_from_string("saved state hooks");
3797 LTTV_STATE_NAME_TABLES
= g_quark_from_string("name tables");
3798 LTTV_STATE_TRACE_STATE_USE_COUNT
=
3799 g_quark_from_string("trace_state_use_count");
3800 LTTV_STATE_RESOURCE_CPUS
= g_quark_from_string("cpu resource states");
3801 LTTV_STATE_RESOURCE_IRQS
= g_quark_from_string("irq resource states");
3802 LTTV_STATE_RESOURCE_BLKDEVS
= g_quark_from_string("blkdevs resource states");
3805 LTT_FACILITY_KERNEL
= g_quark_from_string("kernel");
3806 LTT_FACILITY_KERNEL_ARCH
= g_quark_from_string("kernel_arch");
3807 LTT_FACILITY_FS
= g_quark_from_string("fs");
3808 LTT_FACILITY_LIST
= g_quark_from_string("list");
3809 LTT_FACILITY_USER_GENERIC
= g_quark_from_string("user_generic");
3810 LTT_FACILITY_BLOCK
= g_quark_from_string("block");
3813 LTT_EVENT_SYSCALL_ENTRY
= g_quark_from_string("syscall_entry");
3814 LTT_EVENT_SYSCALL_EXIT
= g_quark_from_string("syscall_exit");
3815 LTT_EVENT_TRAP_ENTRY
= g_quark_from_string("trap_entry");
3816 LTT_EVENT_TRAP_EXIT
= g_quark_from_string("trap_exit");
3817 LTT_EVENT_IRQ_ENTRY
= g_quark_from_string("irq_entry");
3818 LTT_EVENT_IRQ_EXIT
= g_quark_from_string("irq_exit");
3819 LTT_EVENT_SOFT_IRQ_ENTRY
= g_quark_from_string("soft_irq_entry");
3820 LTT_EVENT_SOFT_IRQ_EXIT
= g_quark_from_string("soft_irq_exit");
3821 LTT_EVENT_SCHED_SCHEDULE
= g_quark_from_string("sched_schedule");
3822 LTT_EVENT_PROCESS_FORK
= g_quark_from_string("process_fork");
3823 LTT_EVENT_KTHREAD_CREATE
= g_quark_from_string("kthread_create");
3824 LTT_EVENT_PROCESS_EXIT
= g_quark_from_string("process_exit");
3825 LTT_EVENT_PROCESS_FREE
= g_quark_from_string("process_free");
3826 LTT_EVENT_EXEC
= g_quark_from_string("exec");
3827 LTT_EVENT_PROCESS_STATE
= g_quark_from_string("process_state");
3828 LTT_EVENT_STATEDUMP_END
= g_quark_from_string("statedump_end");
3829 LTT_EVENT_FUNCTION_ENTRY
= g_quark_from_string("function_entry");
3830 LTT_EVENT_FUNCTION_EXIT
= g_quark_from_string("function_exit");
3831 LTT_EVENT_THREAD_BRAND
= g_quark_from_string("thread_brand");
3832 LTT_EVENT_REQUEST_ISSUE
= g_quark_from_string("_blk_request_issue");
3833 LTT_EVENT_REQUEST_COMPLETE
= g_quark_from_string("_blk_request_complete");
3834 LTT_EVENT_LIST_INTERRUPT
= g_quark_from_string("interrupt");;
3837 LTT_FIELD_SYSCALL_ID
= g_quark_from_string("syscall_id");
3838 LTT_FIELD_TRAP_ID
= g_quark_from_string("trap_id");
3839 LTT_FIELD_IRQ_ID
= g_quark_from_string("irq_id");
3840 LTT_FIELD_SOFT_IRQ_ID
= g_quark_from_string("softirq_id");
3841 LTT_FIELD_PREV_PID
= g_quark_from_string("prev_pid");
3842 LTT_FIELD_NEXT_PID
= g_quark_from_string("next_pid");
3843 LTT_FIELD_PREV_STATE
= g_quark_from_string("prev_state");
3844 LTT_FIELD_PARENT_PID
= g_quark_from_string("parent_pid");
3845 LTT_FIELD_CHILD_PID
= g_quark_from_string("child_pid");
3846 LTT_FIELD_PID
= g_quark_from_string("pid");
3847 LTT_FIELD_TGID
= g_quark_from_string("tgid");
3848 LTT_FIELD_CHILD_TGID
= g_quark_from_string("child_tgid");
3849 LTT_FIELD_FILENAME
= g_quark_from_string("filename");
3850 LTT_FIELD_NAME
= g_quark_from_string("name");
3851 LTT_FIELD_TYPE
= g_quark_from_string("type");
3852 LTT_FIELD_MODE
= g_quark_from_string("mode");
3853 LTT_FIELD_SUBMODE
= g_quark_from_string("submode");
3854 LTT_FIELD_STATUS
= g_quark_from_string("status");
3855 LTT_FIELD_THIS_FN
= g_quark_from_string("this_fn");
3856 LTT_FIELD_CALL_SITE
= g_quark_from_string("call_site");
3857 LTT_FIELD_MAJOR
= g_quark_from_string("major");
3858 LTT_FIELD_MINOR
= g_quark_from_string("minor");
3859 LTT_FIELD_OPERATION
= g_quark_from_string("direction");
3860 LTT_FIELD_ACTION
= g_quark_from_string("action");
3861 LTT_FIELD_NUM
= g_quark_from_string("num");
3863 LTTV_CPU_UNKNOWN
= g_quark_from_string("unknown");
3864 LTTV_CPU_IDLE
= g_quark_from_string("idle");
3865 LTTV_CPU_BUSY
= g_quark_from_string("busy");
3866 LTTV_CPU_IRQ
= g_quark_from_string("irq");
3867 LTTV_CPU_TRAP
= g_quark_from_string("trap");
3869 LTTV_IRQ_UNKNOWN
= g_quark_from_string("unknown");
3870 LTTV_IRQ_IDLE
= g_quark_from_string("idle");
3871 LTTV_IRQ_BUSY
= g_quark_from_string("busy");
3873 LTTV_BDEV_UNKNOWN
= g_quark_from_string("unknown");
3874 LTTV_BDEV_IDLE
= g_quark_from_string("idle");
3875 LTTV_BDEV_BUSY_READING
= g_quark_from_string("busy_reading");
3876 LTTV_BDEV_BUSY_WRITING
= g_quark_from_string("busy_writing");
3879 static void module_destroy()
3884 LTTV_MODULE("state", "State computation", \
3885 "Update the system state, possibly saving it at intervals", \
3886 module_init
, module_destroy
)