LTT_FACILITY_KERNEL_ARCH,
LTT_FACILITY_LIST,
LTT_FACILITY_FS,
- LTT_FACILITY_USER_GENERIC;
+ LTT_FACILITY_USER_GENERIC,
+ LTT_FACILITY_BLOCK;
/* Events Quarks */
LTT_EVENT_STATEDUMP_END,
LTT_EVENT_FUNCTION_ENTRY,
LTT_EVENT_FUNCTION_EXIT,
- LTT_EVENT_THREAD_BRAND;
+ LTT_EVENT_THREAD_BRAND,
+ LTT_EVENT_REQUEST_ISSUE,
+ LTT_EVENT_REQUEST_COMPLETE;
/* Fields Quarks */
LTT_FIELD_SUBMODE,
LTT_FIELD_STATUS,
LTT_FIELD_THIS_FN,
- LTT_FIELD_CALL_SITE;
+ LTT_FIELD_CALL_SITE,
+ LTT_FIELD_MINOR,
+ LTT_FIELD_MAJOR,
+ LTT_FIELD_OPERATION;
LttvExecutionMode
LTTV_STATE_MODE_UNKNOWN,
LTTV_IRQ_IDLE,
LTTV_IRQ_BUSY;
+LttvBdevMode
+ LTTV_BDEV_UNKNOWN,
+ LTTV_BDEV_IDLE,
+ LTTV_BDEV_BUSY_READING,
+ LTTV_BDEV_BUSY_WRITING;
+
static GQuark
LTTV_STATE_TRACEFILES,
LTTV_STATE_PROCESSES,
static void
restore_init_state(LttvTraceState *self)
{
- guint i, nb_cpus;
+ guint i, nb_cpus, nb_irqs;
LttvTracefileState *tfcs;
//lttv_process_trace_seek_time(&self->parent, ltt_time_zero);
nb_cpus = ltt_trace_get_num_cpu(self->parent.t);
+ nb_irqs = self->nb_irqs;
/* Put the per cpu running_process to beginning state : process 0. */
for(i=0; i< nb_cpus; i++) {
//self->running_process[i]->state->s = LTTV_STATE_RUN;
self->running_process[i]->cpu = i;
+
+ /* reset cpu states */
+ if(self->cpu_states[i].mode_stack->len > 0)
+ g_array_remove_range(self->cpu_states[i].mode_stack, 0, self->cpu_states[i].mode_stack->len);
+ }
+
+ for(i=0; i<nb_irqs; i++) {
+ if(self->irq_states[i].mode_stack->len > 0)
+ g_array_remove_range(self->irq_states[i].mode_stack, 0, self->irq_states[i].mode_stack->len);
}
#if 0
g_assert(tcs->irq_states[j].mode_stack != NULL);
}
+ /* init bdev resource stuff */
+ tcs->bdev_states = g_hash_table_new(g_int_hash, g_int_equal);
+
restore_init_state(tcs);
for(j = 0 ; j < nb_tracefile ; j++) {
tfcs =
}
/* clears the stack and sets the state passed as argument */
+static void bdev_set_base_mode(LttvBdevState *bdevst, LttvBdevMode state)
+{
+ g_array_set_size(bdevst->mode_stack, 1);
+ ((GQuark *)bdevst->mode_stack->data)[0] = state;
+}
+
+static void bdev_push_mode(LttvBdevState *bdevst, LttvBdevMode state)
+{
+ g_array_set_size(bdevst->mode_stack, bdevst->mode_stack->len + 1);
+ ((GQuark *)bdevst->mode_stack->data)[bdevst->mode_stack->len - 1] = state;
+}
+
+static void bdev_pop_mode(LttvBdevState *bdevst)
+{
+ if(bdevst->mode_stack->len == 1)
+ bdev_set_base_mode(bdevst, LTTV_BDEV_UNKNOWN);
+ else
+ g_array_set_size(bdevst->mode_stack, bdevst->mode_stack->len - 1);
+}
+
static void irq_set_base_mode(LttvIRQState *irqst, LttvIRQMode state)
{
g_array_set_size(irqst->mode_stack, 1);
return FALSE;
}
+LttvBdevState *bdev_state_get(LttvTraceState *ts, guint16 devcode)
+{
+ gint devcode_gint = devcode;
+ gpointer bdev = g_hash_table_lookup(ts->bdev_states, &devcode_gint);
+ if(bdev == NULL) {
+ LttvBdevState *bdevstate = g_malloc(sizeof(LttvBdevState));
+ bdevstate->mode_stack = g_array_new(FALSE, FALSE, sizeof(GQuark));
+
+ gint * key = g_malloc(sizeof(gint));
+ *key = devcode;
+ g_hash_table_insert(ts->bdev_states, key, bdevstate);
+ printf("adding key %u to hash table\n", *key);
+
+ bdev = bdevstate;
+ }
+
+ return bdev;
+}
+
+static gboolean bdev_request_issue(void *hook_data, void *call_data)
+{
+ LttvTracefileState *s = (LttvTracefileState *)call_data;
+ LttvTraceState *ts = (LttvTraceState *)s->parent.t_context;
+ LttEvent *e = ltt_tracefile_get_event(s->parent.tf);
+ guint8 fac_id = ltt_event_facility_id(e);
+ guint8 ev_id = ltt_event_eventtype_id(e);
+ LttvTraceHookByFacility *thf = (LttvTraceHookByFacility *)hook_data;
+
+ guint major = ltt_event_get_long_unsigned(e, thf->f1);
+ guint minor = ltt_event_get_long_unsigned(e, thf->f2);
+ guint oper = ltt_event_get_long_unsigned(e, thf->f3);
+ guint16 devcode = MKDEV(major,minor);
+
+ /* have we seen this block device before? */
+ gpointer bdev = bdev_state_get(ts, devcode);
+
+ if(oper == 0)
+ bdev_push_mode(bdev, LTTV_BDEV_BUSY_READING);
+ else
+ bdev_push_mode(bdev, LTTV_BDEV_BUSY_WRITING);
+
+ return FALSE;
+}
+
+static gboolean bdev_request_complete(void *hook_data, void *call_data)
+{
+ LttvTracefileState *s = (LttvTracefileState *)call_data;
+ LttvTraceState *ts = (LttvTraceState *)s->parent.t_context;
+ LttEvent *e = ltt_tracefile_get_event(s->parent.tf);
+ LttvTraceHookByFacility *thf = (LttvTraceHookByFacility *)hook_data;
+
+ guint major = ltt_event_get_long_unsigned(e, thf->f1);
+ guint minor = ltt_event_get_long_unsigned(e, thf->f2);
+ guint oper = ltt_event_get_long_unsigned(e, thf->f3);
+ guint16 devcode = MKDEV(major,minor);
+
+ /* have we seen this block device before? */
+ gpointer bdev = bdev_state_get(ts, devcode);
+
+ /* update block device */
+ bdev_pop_mode(bdev);
+
+ return FALSE;
+}
+
static void push_function(LttvTracefileState *tfs, guint64 funcptr)
{
guint64 *new_func;
statedump_end, NULL, &g_array_index(hooks, LttvTraceHook, hn++));
if(ret) hn--;
+ ret = lttv_trace_find_hook(ts->parent.t,
+ LTT_FACILITY_BLOCK, LTT_EVENT_REQUEST_ISSUE,
+ LTT_FIELD_MAJOR, LTT_FIELD_MINOR, LTT_FIELD_OPERATION,
+ bdev_request_issue, NULL, &g_array_index(hooks, LttvTraceHook, hn++));
+ if(ret) hn--;
+
+ ret = lttv_trace_find_hook(ts->parent.t,
+ LTT_FACILITY_BLOCK, LTT_EVENT_REQUEST_COMPLETE,
+ LTT_FIELD_MAJOR, LTT_FIELD_MINOR, LTT_FIELD_OPERATION,
+ bdev_request_complete, NULL, &g_array_index(hooks, LttvTraceHook, hn++));
+ if(ret) hn--;
+
ret = lttv_trace_find_hook(ts->parent.t,
LTT_FACILITY_USER_GENERIC, LTT_EVENT_FUNCTION_ENTRY,
LTT_FIELD_THIS_FN, LTT_FIELD_CALL_SITE, 0,
LTT_FACILITY_FS = g_quark_from_string("fs");
LTT_FACILITY_LIST = g_quark_from_string("list");
LTT_FACILITY_USER_GENERIC = g_quark_from_string("user_generic");
+ LTT_FACILITY_BLOCK = g_quark_from_string("block");
LTT_EVENT_SYSCALL_ENTRY = g_quark_from_string("syscall_entry");
LTT_EVENT_FUNCTION_ENTRY = g_quark_from_string("function_entry");
LTT_EVENT_FUNCTION_EXIT = g_quark_from_string("function_exit");
LTT_EVENT_THREAD_BRAND = g_quark_from_string("thread_brand");
+ LTT_EVENT_REQUEST_ISSUE = g_quark_from_string("_blk_request_issue");
+ LTT_EVENT_REQUEST_COMPLETE = g_quark_from_string("_blk_request_complete");
LTT_FIELD_SYSCALL_ID = g_quark_from_string("syscall_id");
LTT_FIELD_STATUS = g_quark_from_string("status");
LTT_FIELD_THIS_FN = g_quark_from_string("this_fn");
LTT_FIELD_CALL_SITE = g_quark_from_string("call_site");
+ LTT_FIELD_MAJOR = g_quark_from_string("major");
+ LTT_FIELD_MINOR = g_quark_from_string("minor");
+ LTT_FIELD_OPERATION = g_quark_from_string("direction");
LTTV_CPU_UNKNOWN = g_quark_from_string("unknown");
LTTV_CPU_IDLE = g_quark_from_string("idle");
LTTV_IRQ_UNKNOWN = g_quark_from_string("unknown");
LTTV_IRQ_IDLE = g_quark_from_string("idle");
LTTV_IRQ_BUSY = g_quark_from_string("busy");
+
+ LTTV_BDEV_UNKNOWN = g_quark_from_string("unknown");
+ LTTV_BDEV_IDLE = g_quark_from_string("idle");
+ LTTV_BDEV_BUSY_READING = g_quark_from_string("busy_reading");
+ LTTV_BDEV_BUSY_WRITING = g_quark_from_string("busy_writing");
}
static void module_destroy()
projects / lttv.git / blobdiff