LTTV_CPU_IDLE,
LTTV_CPU_BUSY,
LTTV_CPU_IRQ,
+ LTTV_CPU_SOFT_IRQ,
LTTV_CPU_TRAP;
LttvIRQMode
LTTV_STATE_NAME_TABLES,
LTTV_STATE_TRACE_STATE_USE_COUNT,
LTTV_STATE_RESOURCE_CPUS,
+ LTTV_STATE_RESOURCE_CPUS_COUNT,
LTTV_STATE_RESOURCE_IRQS,
+ LTTV_STATE_RESOURCE_SOFT_IRQS,
+ LTTV_STATE_RESOURCE_TRAPS,
LTTV_STATE_RESOURCE_BLKDEVS;
static void create_max_time(LttvTraceState *tcs);
g_hash_table_destroy(usertraces);
}
-
+gboolean rettrue(gpointer key, gpointer value, gpointer user_data)
+{
+ return TRUE;
+}
static void
restore_init_state(LttvTraceState *self)
{
- guint i, nb_cpus, nb_irqs;
+ guint i, nb_cpus, nb_irqs, nb_soft_irqs, nb_traps;
//LttvTracefileState *tfcs;
nb_cpus = ltt_trace_get_num_cpu(self->parent.t);
nb_irqs = self->nb_irqs;
+ nb_soft_irqs = self->nb_soft_irqs;
+ nb_traps = self->nb_traps;
/* Put the per cpu running_process to beginning state : process 0. */
for(i=0; i< nb_cpus; i++) {
g_array_remove_range(self->irq_states[i].mode_stack, 0, self->irq_states[i].mode_stack->len);
}
+ /* reset softirq states */
+ for(i=0; i<nb_soft_irqs; i++) {
+ self->soft_irq_states[i].running = 0;
+ }
+
+ /* reset trap states */
+ for(i=0; i<nb_traps; i++) {
+ self->trap_states[i].running = 0;
+ }
+
/* reset bdev states */
g_hash_table_foreach(self->bdev_states, bdevstate_free_cb, NULL);
- g_hash_table_steal_all(self->bdev_states);
+ //g_hash_table_steal_all(self->bdev_states);
+ g_hash_table_foreach_steal(self->bdev_states, rettrue, NULL);
#if 0
nb_tracefile = self->parent.tracefiles->len;
g_assert(tcs->irq_states[j].mode_stack != NULL);
}
+ /* init soft irq stuff */
+ /* the kernel has a statically fixed max of 32 softirqs */
+ tcs->soft_irq_states = g_new(LttvSoftIRQState, tcs->nb_soft_irqs);
+
+ /* init trap stuff */
+ tcs->trap_states = g_new(LttvTrapState, tcs->nb_traps);
+
/* init bdev resource stuff */
tcs->bdev_states = g_hash_table_new(g_int_hash, g_int_equal);
guint i;
for(i=0; i<n; i++) {
- g_array_free(states[i].mode_stack, FALSE);
+ g_array_free(states[i].mode_stack, TRUE);
}
g_free(states);
guint i;
for(i=0; i<n; i++) {
- g_array_free(states[i].mode_stack, FALSE);
+ g_array_free(states[i].mode_stack, TRUE);
}
g_free(states);
}
+static LttvSoftIRQState *lttv_state_copy_soft_irq_states(LttvSoftIRQState *states, guint n)
+{
+ guint i;
+ LttvSoftIRQState *retval;
+
+ retval = g_malloc(n*sizeof(LttvSoftIRQState));
+
+ for(i=0; i<n; i++) {
+ retval[i].running = states[i].running;
+ }
+
+ return retval;
+}
+
+static void lttv_state_free_soft_irq_states(LttvSoftIRQState *states, guint n)
+{
+ g_free(states);
+}
+
+static LttvTrapState *lttv_state_copy_trap_states(LttvTrapState *states, guint n)
+{
+ guint i;
+ LttvTrapState *retval;
+
+ retval = g_malloc(n*sizeof(LttvTrapState));
+
+ for(i=0; i<n; i++) {
+ retval[i].running = states[i].running;
+ }
+
+ return retval;
+}
+
+static void lttv_state_free_trap_states(LttvTrapState *states, guint n)
+{
+ g_free(states);
+}
+
/* bdevstate stuff */
static LttvBdevState *get_hashed_bdevstate(LttvTraceState *ts, guint16 devcode)
static void bdevstate_free(LttvBdevState *bds)
{
- g_array_free(bds->mode_stack, FALSE);
+ g_array_free(bds->mode_stack, TRUE);
g_free(bds);
}
static void state_save(LttvTraceState *self, LttvAttribute *container)
{
- guint i, nb_tracefile, nb_cpus, nb_irqs;
+ guint i, nb_tracefile, nb_cpus, nb_irqs, nb_soft_irqs, nb_traps;
LttvTracefileState *tfcs;
/* save the cpu state */
{
+ value = lttv_attribute_add(container, LTTV_STATE_RESOURCE_CPUS_COUNT,
+ LTTV_UINT);
+ *(value.v_uint) = nb_cpus;
+
value = lttv_attribute_add(container, LTTV_STATE_RESOURCE_CPUS,
LTTV_POINTER);
*(value.v_pointer) = lttv_state_copy_cpu_states(self->cpu_states, nb_cpus);
*(value.v_pointer) = lttv_state_copy_irq_states(self->irq_states, nb_irqs);
}
+ /* save the soft irq state */
+ nb_soft_irqs = self->nb_soft_irqs;
+ {
+ value = lttv_attribute_add(container, LTTV_STATE_RESOURCE_SOFT_IRQS,
+ LTTV_POINTER);
+ *(value.v_pointer) = lttv_state_copy_soft_irq_states(self->soft_irq_states, nb_soft_irqs);
+ }
+
+ /* save the trap state */
+ nb_traps = self->nb_traps;
+ {
+ value = lttv_attribute_add(container, LTTV_STATE_RESOURCE_TRAPS,
+ LTTV_POINTER);
+ *(value.v_pointer) = lttv_state_copy_trap_states(self->trap_states, nb_traps);
+ }
+
/* save the blkdev states */
value = lttv_attribute_add(container, LTTV_STATE_RESOURCE_BLKDEVS,
LTTV_POINTER);
static void state_restore(LttvTraceState *self, LttvAttribute *container)
{
- guint i, nb_tracefile, pid, nb_cpus, nb_irqs;
+ guint i, nb_tracefile, pid, nb_cpus, nb_irqs, nb_soft_irqs, nb_traps;
LttvTracefileState *tfcs;
lttv_state_free_irq_states(self->irq_states, nb_irqs);
self->irq_states = lttv_state_copy_irq_states(*(value.v_pointer), nb_irqs);
+ /* restore soft irq resource states */
+ nb_soft_irqs = self->nb_soft_irqs;
+ type = lttv_attribute_get_by_name(container, LTTV_STATE_RESOURCE_SOFT_IRQS, &value);
+ g_assert(type == LTTV_POINTER);
+ lttv_state_free_soft_irq_states(self->soft_irq_states, nb_soft_irqs);
+ self->soft_irq_states = lttv_state_copy_soft_irq_states(*(value.v_pointer), nb_soft_irqs);
+
+ /* restore trap resource states */
+ nb_traps = self->nb_traps;
+ type = lttv_attribute_get_by_name(container, LTTV_STATE_RESOURCE_TRAPS, &value);
+ g_assert(type == LTTV_POINTER);
+ lttv_state_free_trap_states(self->trap_states, nb_traps);
+ self->trap_states = lttv_state_copy_trap_states(*(value.v_pointer), nb_traps);
+
/* restore the blkdev states */
type = lttv_attribute_get_by_name(container, LTTV_STATE_RESOURCE_BLKDEVS, &value);
g_assert(type == LTTV_POINTER);
static void state_saved_free(LttvTraceState *self, LttvAttribute *container)
{
- guint i, nb_tracefile, nb_cpus;
+ guint i, nb_tracefile, nb_cpus, nb_irqs;
LttvTracefileState *tfcs;
lttv_attribute_remove_by_name(container, LTTV_STATE_PROCESSES);
/* Free running processes array */
- nb_cpus = ltt_trace_get_num_cpu(self->parent.t);
type = lttv_attribute_get_by_name(container, LTTV_STATE_RUNNING_PROCESS,
&value);
g_assert(type == LTTV_POINTER);
running_process = *(value.v_pointer);
g_free(running_process);
+ /* free cpu resource states */
+ type = lttv_attribute_get_by_name(container, LTTV_STATE_RESOURCE_CPUS_COUNT, &value);
+ g_assert(type == LTTV_UINT);
+ nb_cpus = *value.v_uint;
+ type = lttv_attribute_get_by_name(container, LTTV_STATE_RESOURCE_CPUS, &value);
+ g_assert(type == LTTV_POINTER);
+ lttv_state_free_cpu_states(*(value.v_pointer), nb_cpus);
+
+ /* free irq resource states */
+ nb_irqs = self->nb_irqs;
+ type = lttv_attribute_get_by_name(container, LTTV_STATE_RESOURCE_IRQS, &value);
+ g_assert(type == LTTV_POINTER);
+ lttv_state_free_irq_states(*(value.v_pointer), nb_irqs);
+
+ /* free the blkdev states */
+ type = lttv_attribute_get_by_name(container, LTTV_STATE_RESOURCE_BLKDEVS, &value);
+ g_assert(type == LTTV_POINTER);
+ lttv_state_free_blkdev_hashtable(*(value.v_pointer));
+
nb_tracefile = self->parent.tracefiles->len;
for(i = 0 ; i < nb_tracefile ; i++) {
// }
// }
+ name_tables->nb_syscalls = 256;
name_tables->syscall_names = g_new(GQuark, 256);
for(i = 0 ; i < 256 ; i++) {
g_string_printf(fe_name, "syscall %d", i);
}
*/
- name_tables->nb_softirqs = 256;
- name_tables->soft_irq_names = g_new(GQuark, 256);
- for(i = 0 ; i < 256 ; i++) {
+ /* the kernel is limited to 32 statically defined softirqs */
+ name_tables->nb_softirqs = 32;
+ name_tables->soft_irq_names = g_new(GQuark, name_tables->nb_softirqs);
+ for(i = 0 ; i < name_tables->nb_softirqs ; i++) {
g_string_printf(fe_name, "softirq %d", i);
name_tables->soft_irq_names[i] = g_quark_from_string(fe_name->str);
}
tcs->irq_names = name_tables->irq_names;
tcs->soft_irq_names = name_tables->soft_irq_names;
tcs->nb_irqs = name_tables->nb_irqs;
- tcs->nb_softirqs = name_tables->nb_softirqs;
+ tcs->nb_soft_irqs = name_tables->nb_softirqs;
}
* the parent waits for its child terminaison, but may also happen in special
* cases in the child's exit : when the parent ignores its children SIGCCHLD or
* has the flag SA_NOCLDWAIT. It can also happen when the child is part
- * of a killed thread ground, but isn't the leader.
+ * of a killed thread group, but isn't the leader.
*/
static void exit_process(LttvTracefileState *tfs, LttvProcessState *process)
{
static gboolean soft_irq_exit(void *hook_data, void *call_data)
{
LttvTracefileState *s = (LttvTracefileState *)call_data;
+ LttvTraceState *ts = (LttvTraceState *)s->parent.t_context;
+ guint softirq = s->cpu_state->last_soft_irq;
pop_state(s, LTTV_STATE_SOFT_IRQ);
- return FALSE;
-}
+ /* update softirq status */
+ if(ts->soft_irq_states[softirq].running)
+ ts->soft_irq_states[softirq].running--;
+ /* update cpu status */
+ cpu_pop_mode(s->cpu_state);
+
+ return FALSE;
+}
static gboolean irq_exit(void *hook_data, void *call_data)
{
static gboolean soft_irq_entry(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 ev_id = ltt_event_eventtype_id(e);
LttvTraceHook *th = (LttvTraceHook *)hook_data;
LttvExecutionSubmode submode;
guint64 softirq = ltt_event_get_long_unsigned(e, f);
- guint64 nb_softirqs = ((LttvTraceState *)(s->parent.t_context))->nb_softirqs;
+ guint64 nb_softirqs = ((LttvTraceState *)(s->parent.t_context))->nb_soft_irqs;
if(softirq < nb_softirqs) {
submode = ((LttvTraceState *)(s->parent.t_context))->soft_irq_names[softirq];
/* Do something with the info about being in user or system mode when int? */
push_state(s, LTTV_STATE_SOFT_IRQ, submode);
+
+ /* update cpu status */
+ cpu_push_mode(s->cpu_state, LTTV_CPU_SOFT_IRQ);
+
+ /* update softirq status */
+ s->cpu_state->last_soft_irq = softirq;
+ ts->soft_irq_states[softirq].running++;
+
return FALSE;
}
process->state->change = s->parent.timestamp;
}
- if(state_out == 32 || state_out == 128)
+ if(state_out == 32 || state_out == 64)
exit_process(s, process); /* EXIT_DEAD || TASK_DEAD */
/* see sched.h for states */
}
/* update cpu status */
if(pid_in == 0)
+ /* going to idle task */
cpu_set_base_mode(s->cpu_state, LTTV_CPU_IDLE);
- else
+ else {
+ /* scheduling a real task.
+ * we must be careful here:
+ * if we just schedule()'ed to a process that is
+ * in a trap, we must put the cpu in trap mode
+ */
cpu_set_base_mode(s->cpu_state, LTTV_CPU_BUSY);
+ if(process->state->t == LTTV_STATE_TRAP)
+ cpu_push_mode(s->cpu_state, LTTV_CPU_TRAP);
+ }
return FALSE;
}
f = lttv_trace_get_hook_field(th, 3);
type = ltt_enum_string_get(f, ltt_event_get_unsigned(e, f));
+ //FIXME: type is rarely used, enum must match possible types.
+
/* mode */
f = lttv_trace_get_hook_field(th, 4);
mode = ltt_enum_string_get(f,ltt_event_get_unsigned(e, f));
LTTV_STATE_TRACE_STATE_USE_COUNT =
g_quark_from_string("trace_state_use_count");
LTTV_STATE_RESOURCE_CPUS = g_quark_from_string("cpu resource states");
+ LTTV_STATE_RESOURCE_CPUS = g_quark_from_string("cpu count");
LTTV_STATE_RESOURCE_IRQS = g_quark_from_string("irq resource states");
+ LTTV_STATE_RESOURCE_SOFT_IRQS = g_quark_from_string("soft irq resource states");
+ LTTV_STATE_RESOURCE_TRAPS = g_quark_from_string("trap resource states");
LTTV_STATE_RESOURCE_BLKDEVS = g_quark_from_string("blkdevs resource states");
LTTV_CPU_IDLE = g_quark_from_string("idle");
LTTV_CPU_BUSY = g_quark_from_string("busy");
LTTV_CPU_IRQ = g_quark_from_string("irq");
+ LTTV_CPU_SOFT_IRQ = g_quark_from_string("softirq");
LTTV_CPU_TRAP = g_quark_from_string("trap");
LTTV_IRQ_UNKNOWN = g_quark_from_string("unknown");
projects / lttv.git / blobdiff