pid 0 fix
[lttv.git] / ltt / branches / poly / lttv / lttv / stats.c
index 22600255efde4a29dcc9eb5bde8c88311dce8a53..83f69c9edb94900683b19ca97c79c047126d6201 100644 (file)
@@ -31,6 +31,7 @@
 #include <ltt/type.h>
 
 #define BUF_SIZE 256
+#define MAX_64_HEX_STRING_LEN 19
 
 GQuark
   LTTV_STATS_PROCESS_UNKNOWN,
@@ -42,6 +43,7 @@ GQuark
        LTTV_STATS_FUNCTIONS,
   LTTV_STATS_EVENT_TYPES,
   LTTV_STATS_CPU_TIME,
+  LTTV_STATS_CUMULATIVE_CPU_TIME,
   LTTV_STATS_ELAPSED_TIME,
   LTTV_STATS_EVENTS,
   LTTV_STATS_EVENTS_COUNT,
@@ -53,7 +55,8 @@ GQuark
   LTTV_STATS_AFTER_HOOKS;
 
 static void
-find_event_tree(LttvTracefileStats *tfcs, GQuark pid_time, GQuark cpu,
+find_event_tree(LttvTracefileStats *tfcs, GQuark pid_time, guint cpu,
+               guint64 function,
     GQuark mode, GQuark sub_mode, LttvAttribute **events_tree, 
     LttvAttribute **event_types_tree);
 
@@ -118,8 +121,10 @@ static void lttv_stats_init(LttvTracesetStats *self)
       tfcs = LTTV_TRACEFILE_STATS(*tfs);
       tfcs->stats = lttv_attribute_find_subdir(tracefiles_stats, 
           ltt_tracefile_long_name(tfcs->parent.parent.tf));
+               guint cpu = tfcs->parent.cpu;
       find_event_tree(tfcs, LTTV_STATS_PROCESS_UNKNOWN,
-          ltt_tracefile_long_name(tfcs->parent.parent.tf),
+                                       cpu,
+                                       0x0ULL,
           LTTV_STATE_MODE_UNKNOWN, 
           LTTV_STATE_SUBMODE_UNKNOWN, &tfcs->current_events_tree,
           &tfcs->current_event_types_tree);
@@ -392,19 +397,29 @@ lttv_tracefile_stats_get_type(void)
 static void
 find_event_tree(LttvTracefileStats *tfcs,
                 GQuark pid_time,
-                GQuark cpu,
+                guint cpu,
+                                                               guint64 function,
                 GQuark mode,
                 GQuark sub_mode,
                 LttvAttribute **events_tree, 
                 LttvAttribute **event_types_tree)
 {
-  LttvAttribute *a;
+  LttvAttribute *a, *prev_a;
+       gchar fstring[MAX_64_HEX_STRING_LEN];
+       gint ret;
+
+       ret = snprintf(fstring, MAX_64_HEX_STRING_LEN-1,
+                               "0x%llX", function) > 0;
+       g_assert(ret > 0);
+       fstring[MAX_64_HEX_STRING_LEN-1] = '\0';
 
   LttvTraceStats *tcs = (LttvTraceStats*)tfcs->parent.parent.t_context;
   a = lttv_attribute_find_subdir(tcs->stats, LTTV_STATS_PROCESSES);
   a = lttv_attribute_find_subdir(a, pid_time);
   a = lttv_attribute_find_subdir(a, LTTV_STATS_CPU);
-  a = lttv_attribute_find_subdir(a, cpu);
+  a = lttv_attribute_find_subdir_unnamed(a, cpu);
+  a = lttv_attribute_find_subdir(a, LTTV_STATS_FUNCTIONS);
+  a = lttv_attribute_find_subdir(a, g_quark_from_string(fstring));
   a = lttv_attribute_find_subdir(a, LTTV_STATS_MODE_TYPES);
   a = lttv_attribute_find_subdir(a, mode);
   a = lttv_attribute_find_subdir(a, LTTV_STATS_SUBMODES);
@@ -423,7 +438,8 @@ static void update_event_tree(LttvTracefileStats *tfcs)
   LttvExecutionState *es = process->state;
 
   find_event_tree(tfcs, process->pid_time,
-      ltt_tracefile_long_name(tfcs->parent.parent.tf), 
+      cpu,
+                       process->current_function,
       es->t, es->n, &(tfcs->current_events_tree), 
       &(tfcs->current_event_types_tree));
 }
@@ -434,24 +450,29 @@ static void mode_change(LttvTracefileStats *tfcs)
   LttvTraceState *ts = (LttvTraceState *)tfcs->parent.parent.t_context;
   guint cpu = tfcs->parent.cpu;
   LttvProcessState *process = ts->running_process[cpu];
-  LttvAttributeValue cpu_time
+  LttvAttributeValue cpu_time, cum_cpu_time;
 
   LttTime delta;
 
-  lttv_attribute_find(tfcs->current_events_tree, LTTV_STATS_CPU_TIME, 
-      LTTV_TIME, &cpu_time);
   delta = ltt_time_sub(tfcs->parent.parent.timestamp, 
       process->state->change);
+
+  lttv_attribute_find(tfcs->current_events_tree, LTTV_STATS_CPU_TIME, 
+      LTTV_TIME, &cpu_time);
   *(cpu_time.v_time) = ltt_time_add(*(cpu_time.v_time), delta);
-}
 
+  process->state->cum_cpu_time = ltt_time_add(process->state->cum_cpu_time,
+                       delta);
+}
 
+/* Note : every mode_end must come with a cumulative cpu time update in the
+ * after hook */
 static void mode_end(LttvTracefileStats *tfcs)
 {
   LttvTraceState *ts = (LttvTraceState *)tfcs->parent.parent.t_context;
   guint cpu = tfcs->parent.cpu;
   LttvProcessState *process = ts->running_process[cpu];
-  LttvAttributeValue elapsed_time, cpu_time; 
+  LttvAttributeValue elapsed_time, cpu_time, cum_cpu_time
 
   LttTime delta;
 
@@ -466,9 +487,34 @@ static void mode_end(LttvTracefileStats *tfcs)
   delta = ltt_time_sub(tfcs->parent.parent.timestamp, 
       process->state->change);
   *(cpu_time.v_time) = ltt_time_add(*(cpu_time.v_time), delta);
+  process->state->cum_cpu_time = ltt_time_add(process->state->cum_cpu_time,
+                       delta);
+
+  lttv_attribute_find(tfcs->current_events_tree, LTTV_STATS_CUMULATIVE_CPU_TIME,
+      LTTV_TIME, &cum_cpu_time);
+  *(cum_cpu_time.v_time) = ltt_time_add(*(cum_cpu_time.v_time), 
+                       process->state->cum_cpu_time);
 }
 
 
+static void after_mode_end(LttvTracefileStats *tfcs)
+{
+  LttvTraceState *ts = (LttvTraceState *)tfcs->parent.parent.t_context;
+  guint cpu = tfcs->parent.cpu;
+  LttvProcessState *process = ts->running_process[cpu];
+  LttvAttributeValue cum_cpu_time;
+
+  LttTime nested_delta;
+
+  nested_delta = process->state->cum_cpu_time;
+  process->state->cum_cpu_time = ltt_time_zero;        /* For after traceset hook */
+
+  update_event_tree(tfcs);
+
+  process->state->cum_cpu_time = ltt_time_add(process->state->cum_cpu_time,
+                       nested_delta);
+}
+
 static gboolean before_syscall_entry(void *hook_data, void *call_data)
 {
   mode_change((LttvTracefileStats *)call_data);
@@ -492,7 +538,7 @@ gboolean before_syscall_exit(void *hook_data, void *call_data)
 
 static gboolean after_syscall_exit(void *hook_data, void *call_data)
 {
-  update_event_tree((LttvTracefileStats *)call_data);
+  after_mode_end((LttvTracefileStats *)call_data);
   return FALSE;
 }
 
@@ -520,7 +566,7 @@ gboolean before_trap_exit(void *hook_data, void *call_data)
 
 gboolean after_trap_exit(void *hook_data, void *call_data)
 {
-  update_event_tree((LttvTracefileStats *)call_data);
+  after_mode_end((LttvTracefileStats *)call_data);
   return FALSE;
 }
 
@@ -547,7 +593,7 @@ gboolean before_irq_exit(void *hook_data, void *call_data)
 
 gboolean after_irq_exit(void *hook_data, void *call_data)
 {
-  update_event_tree((LttvTracefileStats *)call_data);
+  after_mode_end((LttvTracefileStats *)call_data);
   return FALSE;
 }
 
@@ -573,11 +619,35 @@ gboolean before_soft_irq_exit(void *hook_data, void *call_data)
 
 
 gboolean after_soft_irq_exit(void *hook_data, void *call_data)
+{
+  after_mode_end((LttvTracefileStats *)call_data);
+  return FALSE;
+}
+
+gboolean before_function_entry(void *hook_data, void *call_data)
+{
+  mode_change((LttvTracefileStats *)call_data);
+  return FALSE;
+}
+
+gboolean after_function_entry(void *hook_data, void *call_data)
 {
   update_event_tree((LttvTracefileStats *)call_data);
   return FALSE;
 }
 
+gboolean before_function_exit(void *hook_data, void *call_data)
+{
+  mode_end((LttvTracefileStats *)call_data);
+  return FALSE;
+}
+
+gboolean after_function_exit(void *hook_data, void *call_data)
+{
+  after_mode_end((LttvTracefileStats *)call_data);
+  return FALSE;
+}
+
 
 gboolean before_schedchange(void *hook_data, void *call_data)
 {
@@ -593,8 +663,6 @@ gboolean before_schedchange(void *hook_data, void *call_data)
     
   gint state_out;
 
-  LttvProcessState *process;
-
   pid_out = ltt_event_get_unsigned(e, thf->f1);
   pid_in = ltt_event_get_unsigned(e, thf->f2);
   state_out = ltt_event_get_int(e, thf->f3);
@@ -603,22 +671,44 @@ gboolean before_schedchange(void *hook_data, void *call_data)
 
   mode_change(tfcs);
 
-  /* get the information for the process scheduled in */
+  return FALSE;
+}
+
+gboolean after_schedchange(void *hook_data, void *call_data)
+{
+  LttvTracefileStats *tfcs = (LttvTracefileStats *)call_data;
+
+  LttvTraceState *ts = (LttvTraceState*)tfcs->parent.parent.t_context;
 
-  process = lttv_state_find_process_or_create(ts, 
-      ANY_CPU, pid_in, &tfcs->parent.parent.timestamp);
+  LttEvent *e = ltt_tracefile_get_event(tfcs->parent.parent.tf);
+
+  LttvTraceHookByFacility *thf = (LttvTraceHookByFacility *)hook_data;
+
+  guint pid_in, pid_out;
+    
+  gint state_out;
+
+  LttvProcessState *process;
+
+  pid_out = ltt_event_get_unsigned(e, thf->f1);
+  pid_in = ltt_event_get_unsigned(e, thf->f2);
+  state_out = ltt_event_get_int(e, thf->f3);
+
+  /* get the information for the process scheduled in */
+  guint cpu = tfcs->parent.cpu;
+  process = ts->running_process[cpu];
 
   find_event_tree(tfcs, process->pid_time,
-      ltt_tracefile_long_name(tfcs->parent.parent.tf), 
+      cpu,
+                       process->current_function,
       process->state->t, process->state->n, &(tfcs->current_events_tree), 
       &(tfcs->current_event_types_tree));
 
   /* compute the time waiting for the process to schedule in */
-
   mode_change(tfcs);
-  return FALSE;
-}
 
+       return FALSE;
+}
 
 gboolean process_fork(void *hook_data, void *call_data)
 {
@@ -634,6 +724,20 @@ gboolean process_exit(void *hook_data, void *call_data)
   return FALSE;
 }
 
+gboolean before_enum_process_state(void *hook_data, void *call_data)
+{
+  mode_end((LttvTracefileStats *)call_data);
+  after_mode_end((LttvTracefileStats *)call_data);
+  mode_change((LttvTracefileStats *)call_data);
+  return FALSE;
+}
+
+gboolean after_enum_process_state(void *hook_data, void *call_data)
+{
+  update_event_tree((LttvTracefileStats *)call_data);
+  return FALSE;
+}
+
 gboolean process_free(void *hook_data, void *call_data)
 {
   return FALSE;
@@ -659,9 +763,60 @@ gboolean every_event(void *hook_data, void *call_data)
   return FALSE;
 }
 
+static void lttv_stats_cleanup_process_state(gpointer key, gpointer value,
+    gpointer user_data)
+{
+  LttvTraceStats *tcs = (LttvTraceStats *)user_data;
+  LttvTraceState *ts = (LttvTraceState *)user_data;
+  LttvTracesetContext *tsc = ts->parent.ts_context;
+  LttvProcessState *process = (LttvProcessState *)value;
+  int i;
+  LttvTracefileStats **tfs = (LttvTracefileStats **)
+      &g_array_index(ts->parent.tracefiles, LttvTracefileContext*,
+          process->cpu);
+  int cleanup_empty = 0;
+  LttTime nested_delta = ltt_time_zero;
+  /* FIXME : ok, this is a hack. The time is infinite here :( */
+  LttTime save_time = (*tfs)->parent.parent.timestamp;
+  LttTime start, end;
+  ltt_trace_time_span_get(ts->parent.t, &start, &end);
+  (*tfs)->parent.parent.timestamp = end;
+
+  do {
+    if(ltt_time_compare(process->state->cum_cpu_time, ltt_time_zero) != 0) {
+      find_event_tree(*tfs, process->pid_time,
+          process->cpu,
+          process->current_function,
+          process->state->t, process->state->n, &((*tfs)->current_events_tree), 
+          &((*tfs)->current_event_types_tree));
+      /* if it is a running mode, we must count its cpu time */
+      if(process->state->s == LTTV_STATE_RUN)
+        mode_end(*tfs);
+      nested_delta = process->state->cum_cpu_time;
+    }
+    cleanup_empty = lttv_state_pop_state_cleanup(process,
+        (LttvTracefileState *)*tfs);
+    process->state->cum_cpu_time = ltt_time_add(process->state->cum_cpu_time,
+        nested_delta);
+
+  } while(cleanup_empty != 1);
+
+  (*tfs)->parent.parent.timestamp = save_time;
+}
+
+/* For each process in the state, for each of their stacked states,
+ * perform sum of needed values. */
+static void lttv_stats_cleanup_state(LttvTraceStats *tcs)
+{
+  LttvTraceState *ts = (LttvTraceState *)tcs;
+  
+  /* Does not work correctly FIXME. */
+  g_hash_table_foreach(ts->processes, lttv_stats_cleanup_process_state,
+      tcs);
+}
 
 void
-lttv_stats_sum_trace(LttvTraceStats *self)
+lttv_stats_sum_trace(LttvTraceStats *self, LttvAttribute *ts_stats)
 {
   LttvAttribute *sum_container = self->stats;
 
@@ -671,86 +826,119 @@ lttv_stats_sum_trace(LttvTraceStats *self)
 
   LttvAttributeName name;
 
+       gboolean is_named;
+
   unsigned sum;
 
+       int trace_is_summed;
+
   int i, j, k, l, m, nb_process, nb_cpu, nb_mode_type, nb_submode,
-      nb_event_type;
+      nb_event_type, nf, nb_functions;
 
   LttvAttribute *main_tree, *processes_tree, *process_tree, *cpus_tree,
       *cpu_tree, *mode_tree, *mode_types_tree, *submodes_tree,
       *submode_tree, *event_types_tree, *mode_events_tree,
-      *cpu_events_tree, *process_modes_tree, *trace_cpu_tree, 
-      *trace_modes_tree;
+      *cpu_functions_tree,
+                       *function_tree,
+                       *function_mode_types_tree,
+                       *trace_cpu_tree;
+
 
   main_tree = sum_container;
 
   lttv_attribute_find(sum_container,
                       LTTV_STATS_SUMMED, 
                       LTTV_UINT, &value);
-  if(*(value.v_uint) != 0) return;
+       trace_is_summed = *(value.v_uint);
   *(value.v_uint) = 1;
 
+       /* First cleanup the state : sum all stalled information (never ending
+        * states). */
+       if(!trace_is_summed)
+               lttv_stats_cleanup_state(self);
+       
   processes_tree = lttv_attribute_find_subdir(main_tree, 
                                               LTTV_STATS_PROCESSES);
-  trace_modes_tree = lttv_attribute_find_subdir(main_tree,
-                                                LTTV_STATS_MODES);
   nb_process = lttv_attribute_get_number(processes_tree);
 
   for(i = 0 ; i < nb_process ; i++) {
-    type = lttv_attribute_get(processes_tree, i, &name, &value);
+    type = lttv_attribute_get(processes_tree, i, &name, &value, &is_named);
     process_tree = LTTV_ATTRIBUTE(*(value.v_gobject));
 
     cpus_tree = lttv_attribute_find_subdir(process_tree, LTTV_STATS_CPU);
-    process_modes_tree = lttv_attribute_find_subdir(process_tree,
-        LTTV_STATS_MODES);
     nb_cpu = lttv_attribute_get_number(cpus_tree);
 
     for(j = 0 ; j < nb_cpu ; j++) {
-      type = lttv_attribute_get(cpus_tree, j, &name, &value);
+      type = lttv_attribute_get(cpus_tree, j, &name, &value, &is_named);
       cpu_tree = LTTV_ATTRIBUTE(*(value.v_gobject));
 
-      mode_types_tree = lttv_attribute_find_subdir(cpu_tree, 
-          LTTV_STATS_MODE_TYPES);
-      cpu_events_tree = lttv_attribute_find_subdir(cpu_tree,
-          LTTV_STATS_EVENTS);
       trace_cpu_tree = lttv_attribute_find_subdir(main_tree, LTTV_STATS_CPU);
-      trace_cpu_tree = lttv_attribute_find_subdir(trace_cpu_tree, name);
-      nb_mode_type = lttv_attribute_get_number(mode_types_tree);
-
-      for(k = 0 ; k < nb_mode_type ; k++) {
-        type = lttv_attribute_get(mode_types_tree, k, &name, &value);
-        mode_tree = LTTV_ATTRIBUTE(*(value.v_gobject));
-
-        submodes_tree = lttv_attribute_find_subdir(mode_tree, 
-            LTTV_STATS_SUBMODES);
-        mode_events_tree = lttv_attribute_find_subdir(mode_tree,
-            LTTV_STATS_EVENTS);
-        nb_submode = lttv_attribute_get_number(submodes_tree);
-
-        for(l = 0 ; l < nb_submode ; l++) {
-          type = lttv_attribute_get(submodes_tree, l, &name, &value);
-          submode_tree = LTTV_ATTRIBUTE(*(value.v_gobject));
-
-          event_types_tree = lttv_attribute_find_subdir(submode_tree, 
-            LTTV_STATS_EVENT_TYPES);
-          nb_event_type = lttv_attribute_get_number(event_types_tree);
-
-          sum = 0;
-          for(m = 0 ; m < nb_event_type ; m++) {
-            type = lttv_attribute_get(event_types_tree, m, &name, &value);
-            sum += *(value.v_uint);
-          }
-          lttv_attribute_find(submode_tree, LTTV_STATS_EVENTS_COUNT, 
-              LTTV_UINT, &value);
-          *(value.v_uint) = sum;
-          lttv_attribute_recursive_add(mode_events_tree, submode_tree);
-        }
-        lttv_attribute_recursive_add(cpu_events_tree, mode_events_tree);
-      }
-      lttv_attribute_recursive_add(process_modes_tree, cpu_tree);
-      lttv_attribute_recursive_add(trace_cpu_tree, cpu_tree);
+      trace_cpu_tree = lttv_attribute_find_subdir_unnamed(trace_cpu_tree, name);
+                       cpu_functions_tree = lttv_attribute_find_subdir(cpu_tree,
+                                                                                                                                                                                                                       LTTV_STATS_FUNCTIONS);
+       nb_functions = lttv_attribute_get_number(cpu_functions_tree);
+                       
+                       for(nf=0; nf < nb_functions; nf++) {
+                               type = lttv_attribute_get(cpu_functions_tree, nf, &name, &value,
+                                               &is_named);
+                               function_tree = LTTV_ATTRIBUTE(*(value.v_gobject));
+                               function_mode_types_tree = lttv_attribute_find_subdir(function_tree,
+                                               LTTV_STATS_MODE_TYPES);
+       nb_mode_type = lttv_attribute_get_number(function_mode_types_tree);
+                               for(k = 0 ; k < nb_mode_type ; k++) {
+                                       type = lttv_attribute_get(function_mode_types_tree, k, &name, &value,
+                                                       &is_named);
+                                       mode_tree = LTTV_ATTRIBUTE(*(value.v_gobject));
+
+                                       submodes_tree = lttv_attribute_find_subdir(mode_tree, 
+                                                       LTTV_STATS_SUBMODES);
+                                       mode_events_tree = lttv_attribute_find_subdir(mode_tree,
+                                                       LTTV_STATS_EVENTS);
+                                       mode_types_tree = lttv_attribute_find_subdir(mode_tree, 
+                                                       LTTV_STATS_MODE_TYPES);
+
+                                       nb_submode = lttv_attribute_get_number(submodes_tree);
+
+                                       for(l = 0 ; l < nb_submode ; l++) {
+                                               type = lttv_attribute_get(submodes_tree, l, &name, &value,
+                                                               &is_named);
+                                               submode_tree = LTTV_ATTRIBUTE(*(value.v_gobject));
+
+                                               event_types_tree = lttv_attribute_find_subdir(submode_tree, 
+                                                       LTTV_STATS_EVENT_TYPES);
+                                               nb_event_type = lttv_attribute_get_number(event_types_tree);
+
+                                               sum = 0;
+                                               for(m = 0 ; m < nb_event_type ; m++) {
+                                                       type = lttv_attribute_get(event_types_tree, m, &name, &value,
+                                                                       &is_named);
+                                                       sum += *(value.v_uint);
+                                               }
+                                               lttv_attribute_find(submode_tree, LTTV_STATS_EVENTS_COUNT, 
+                                                               LTTV_UINT, &value);
+                                               *(value.v_uint) = sum;
+
+                                               type = lttv_attribute_get(submodes_tree, l, &name, &value,
+                                                               &is_named);
+                                               submode_tree = LTTV_ATTRIBUTE(*(value.v_gobject));
+                                               if(!trace_is_summed) {
+                                                       lttv_attribute_recursive_add(mode_events_tree, event_types_tree);
+                                                       lttv_attribute_recursive_add(mode_types_tree, submode_tree);
+                                               }
+                                       }
+                                       if(!trace_is_summed) {
+                                               lttv_attribute_recursive_add(function_tree, mode_types_tree);
+                                       }
+                               }
+                               if(!trace_is_summed) {
+                                       lttv_attribute_recursive_add(cpu_tree, function_tree);
+                                       lttv_attribute_recursive_add(process_tree, function_tree);
+                                       lttv_attribute_recursive_add(trace_cpu_tree, function_tree);
+                                       lttv_attribute_recursive_add(main_tree, function_tree);
+                               }
+                               lttv_attribute_recursive_add(ts_stats, function_tree);
+                       }
     }
-    lttv_attribute_recursive_add(trace_modes_tree, process_modes_tree);
   }
 }
 
@@ -771,7 +959,7 @@ lttv_stats_sum_traceset(LttvTracesetStats *self)
 
   int i, nb_trace;
 
-  LttvAttribute *main_tree, *trace_modes_tree, *traceset_modes_tree;
+  LttvAttribute *main_tree;
 
   LttvAttributeValue value;
 
@@ -780,16 +968,12 @@ lttv_stats_sum_traceset(LttvTracesetStats *self)
   if(*(value.v_uint) != 0) return;
   *(value.v_uint) = 1;
 
-  traceset_modes_tree = lttv_attribute_find_subdir(sum_container, 
-      LTTV_STATS_MODES);
   nb_trace = lttv_traceset_number(traceset);
 
   for(i = 0 ; i < nb_trace ; i++) {
     tcs = (LttvTraceStats *)(self->parent.parent.traces[i]);
-    lttv_stats_sum_trace(tcs);
-    main_tree = tcs->stats;
-    trace_modes_tree = lttv_attribute_find_subdir(main_tree, LTTV_STATS_MODES);
-    lttv_attribute_recursive_add(traceset_modes_tree, trace_modes_tree);
+    lttv_stats_sum_trace(tcs, self->stats);
+       //                              lttv_attribute_recursive_add(sum_container, tcs->stats);
   }
 }
 
@@ -823,6 +1007,7 @@ void lttv_stats_add_event_hooks(LttvTracesetStats *self)
   LttvAttributeValue val;
 
   gint ret;
+       gint hn;
 
   nb_trace = lttv_traceset_number(traceset);
   for(i = 0 ; i < nb_trace ; i++) {
@@ -831,154 +1016,210 @@ void lttv_stats_add_event_hooks(LttvTracesetStats *self)
     /* Find the eventtype id for the following events and register the
        associated by id hooks. */
 
-    hooks = g_array_sized_new(FALSE, FALSE, sizeof(LttvTraceHook), 9);
-    g_array_set_size(hooks, 9);
+    hooks = g_array_sized_new(FALSE, FALSE, sizeof(LttvTraceHook), 12);
+    g_array_set_size(hooks, 12);
+    hn=0;
 
     ret = lttv_trace_find_hook(ts->parent.parent.t,
         LTT_FACILITY_KERNEL_ARCH, LTT_EVENT_SYSCALL_ENTRY,
         LTT_FIELD_SYSCALL_ID, 0, 0,
         before_syscall_entry, NULL, 
-        &g_array_index(hooks, LttvTraceHook, 0));
-    g_assert(!ret);
+        &g_array_index(hooks, LttvTraceHook, hn++));
+    if(ret) hn--;
 
     ret = lttv_trace_find_hook(ts->parent.parent.t,
         LTT_FACILITY_KERNEL_ARCH, LTT_EVENT_SYSCALL_EXIT,
         0, 0, 0,
         before_syscall_exit, NULL, 
-        &g_array_index(hooks, LttvTraceHook, 1));
-    g_assert(!ret);
+        &g_array_index(hooks, LttvTraceHook, hn++));
+    if(ret) hn--;
 
     ret = lttv_trace_find_hook(ts->parent.parent.t,
         LTT_FACILITY_KERNEL, LTT_EVENT_TRAP_ENTRY,
         LTT_FIELD_TRAP_ID, 0, 0,
         before_trap_entry, NULL, 
-        &g_array_index(hooks, LttvTraceHook, 2));
-    g_assert(!ret);
+        &g_array_index(hooks, LttvTraceHook, hn++));
+    if(ret) hn--;
 
     ret = lttv_trace_find_hook(ts->parent.parent.t,
         LTT_FACILITY_KERNEL, LTT_EVENT_TRAP_EXIT,
         0, 0, 0,
         before_trap_exit, NULL,
-        &g_array_index(hooks, LttvTraceHook, 3));
-    g_assert(!ret);
+        &g_array_index(hooks, LttvTraceHook, hn++));
+    if(ret) hn--;
 
     ret = lttv_trace_find_hook(ts->parent.parent.t,
         LTT_FACILITY_KERNEL, LTT_EVENT_IRQ_ENTRY,
         LTT_FIELD_IRQ_ID, 0, 0,
         before_irq_entry, NULL,
-        &g_array_index(hooks, LttvTraceHook, 4));
-    g_assert(!ret);
+        &g_array_index(hooks, LttvTraceHook, hn++));
+    if(ret) hn--;
 
     ret = lttv_trace_find_hook(ts->parent.parent.t,
         LTT_FACILITY_KERNEL, LTT_EVENT_IRQ_EXIT,
         0, 0, 0,
         before_irq_exit, NULL,
-        &g_array_index(hooks, LttvTraceHook, 5));
-    g_assert(!ret);
+        &g_array_index(hooks, LttvTraceHook, hn++));
+    if(ret) hn--;
 
     ret = lttv_trace_find_hook(ts->parent.parent.t,
         LTT_FACILITY_KERNEL, LTT_EVENT_SOFT_IRQ_ENTRY,
         LTT_FIELD_SOFT_IRQ_ID, 0, 0,
         before_soft_irq_entry, NULL,
-        &g_array_index(hooks, LttvTraceHook, 6));
-    g_assert(!ret);
+        &g_array_index(hooks, LttvTraceHook, hn++));
+    if(ret) hn--;
 
     ret = lttv_trace_find_hook(ts->parent.parent.t,
         LTT_FACILITY_KERNEL, LTT_EVENT_SOFT_IRQ_EXIT,
         0, 0, 0,
         before_soft_irq_exit, NULL,
-        &g_array_index(hooks, LttvTraceHook, 7));
-    g_assert(!ret);
+        &g_array_index(hooks, LttvTraceHook, hn++));
+    if(ret) hn--;
 
     ret = lttv_trace_find_hook(ts->parent.parent.t,
         LTT_FACILITY_PROCESS, LTT_EVENT_SCHEDCHANGE,
         LTT_FIELD_OUT, LTT_FIELD_IN, LTT_FIELD_OUT_STATE,
         before_schedchange, NULL, 
-        &g_array_index(hooks, LttvTraceHook, 8));
-    g_assert(!ret);
+        &g_array_index(hooks, LttvTraceHook, hn++));
+    if(ret) hn--;
+
+    ret = lttv_trace_find_hook(ts->parent.parent.t,
+        LTT_FACILITY_USER_GENERIC, LTT_EVENT_FUNCTION_ENTRY,
+        LTT_FIELD_THIS_FN, LTT_FIELD_CALL_SITE, 0,
+        before_function_entry, NULL,
+        &g_array_index(hooks, LttvTraceHook, hn++));
+    if(ret) hn--;
+
+    ret = lttv_trace_find_hook(ts->parent.parent.t,
+        LTT_FACILITY_USER_GENERIC, LTT_EVENT_FUNCTION_EXIT,
+        LTT_FIELD_THIS_FN, LTT_FIELD_CALL_SITE, 0,
+        before_function_exit, NULL,
+        &g_array_index(hooks, LttvTraceHook, hn++));
+    if(ret) hn--;
+
+    /* statedump-related hooks */
+    ret = lttv_trace_find_hook(ts->parent.parent.t,
+        LTT_FACILITY_STATEDUMP, LTT_EVENT_ENUM_PROCESS_STATE,
+        LTT_FIELD_PID, LTT_FIELD_PARENT_PID, LTT_FIELD_NAME,
+        before_enum_process_state, NULL,
+        &g_array_index(hooks, LttvTraceHook, hn++));
+    if(ret) hn--;
+
+    g_array_set_size(hooks, hn);
 
     before_hooks = hooks;
 
-    hooks = g_array_sized_new(FALSE, FALSE, sizeof(LttvTraceHook), 11);
-    g_array_set_size(hooks, 11);
+    hooks = g_array_sized_new(FALSE, FALSE, sizeof(LttvTraceHook), 15);
+    g_array_set_size(hooks, 15);
+    hn=0;
 
     ret = lttv_trace_find_hook(ts->parent.parent.t,
         LTT_FACILITY_KERNEL_ARCH, LTT_EVENT_SYSCALL_ENTRY,
         LTT_FIELD_SYSCALL_ID, 0, 0,
         after_syscall_entry, NULL, 
-        &g_array_index(hooks, LttvTraceHook, 0));
-    g_assert(!ret);
+        &g_array_index(hooks, LttvTraceHook, hn++));
+    if(ret) hn--;
 
     ret = lttv_trace_find_hook(ts->parent.parent.t,
         LTT_FACILITY_KERNEL_ARCH, LTT_EVENT_SYSCALL_EXIT,
         0, 0, 0,
         after_syscall_exit, NULL, 
-        &g_array_index(hooks, LttvTraceHook, 1));
-    g_assert(!ret);
+        &g_array_index(hooks, LttvTraceHook, hn++));
+    if(ret) hn--;
 
     ret = lttv_trace_find_hook(ts->parent.parent.t,
         LTT_FACILITY_KERNEL, LTT_EVENT_TRAP_ENTRY, 
         LTT_FIELD_TRAP_ID, 0, 0,
         after_trap_entry, NULL,
-        &g_array_index(hooks, LttvTraceHook, 2));
-    g_assert(!ret);
+        &g_array_index(hooks, LttvTraceHook, hn++));
+    if(ret) hn--;
 
     ret = lttv_trace_find_hook(ts->parent.parent.t,
         LTT_FACILITY_KERNEL, LTT_EVENT_TRAP_EXIT,
         0, 0, 0,
         after_trap_exit, NULL,
-        &g_array_index(hooks, LttvTraceHook, 3));
-    g_assert(!ret);
+        &g_array_index(hooks, LttvTraceHook, hn++));
+    if(ret) hn--;
 
     ret = lttv_trace_find_hook(ts->parent.parent.t,
         LTT_FACILITY_KERNEL, LTT_EVENT_IRQ_ENTRY, 
         LTT_FIELD_IRQ_ID, 0, 0,
         after_irq_entry, NULL,
-        &g_array_index(hooks, LttvTraceHook, 4));
-    g_assert(!ret);
+        &g_array_index(hooks, LttvTraceHook, hn++));
+    if(ret) hn--;
 
     ret = lttv_trace_find_hook(ts->parent.parent.t,
         LTT_FACILITY_KERNEL, LTT_EVENT_IRQ_EXIT,
         0, 0, 0,
         after_irq_exit, NULL,
-        &g_array_index(hooks, LttvTraceHook, 5));
-    g_assert(!ret);
+        &g_array_index(hooks, LttvTraceHook, hn++));
+    if(ret) hn--;
 
     ret = lttv_trace_find_hook(ts->parent.parent.t,
         LTT_FACILITY_KERNEL, LTT_EVENT_SOFT_IRQ_ENTRY, 
         LTT_FIELD_SOFT_IRQ_ID, 0, 0,
         after_irq_entry, NULL,
-        &g_array_index(hooks, LttvTraceHook, 6));
-    g_assert(!ret);
+        &g_array_index(hooks, LttvTraceHook, hn++));
+    if(ret) hn--;
 
     ret = lttv_trace_find_hook(ts->parent.parent.t,
         LTT_FACILITY_KERNEL, LTT_EVENT_SOFT_IRQ_EXIT,
         0, 0, 0,
         after_soft_irq_exit, NULL,
-        &g_array_index(hooks, LttvTraceHook, 7));
-    g_assert(!ret);
+        &g_array_index(hooks, LttvTraceHook, hn++));
+    if(ret) hn--;
+
+    ret = lttv_trace_find_hook(ts->parent.parent.t,
+        LTT_FACILITY_PROCESS, LTT_EVENT_SCHEDCHANGE,
+        LTT_FIELD_OUT, LTT_FIELD_IN, LTT_FIELD_OUT_STATE,
+        after_schedchange, NULL, 
+        &g_array_index(hooks, LttvTraceHook, hn++));
+    if(ret) hn--;
 
     ret = lttv_trace_find_hook(ts->parent.parent.t,
         LTT_FACILITY_PROCESS, LTT_EVENT_FORK, 
         LTT_FIELD_PARENT_PID, LTT_FIELD_CHILD_PID, 0,
         process_fork, NULL, 
-        &g_array_index(hooks, LttvTraceHook, 8));
-    g_assert(!ret);
+        &g_array_index(hooks, LttvTraceHook, hn++));
+    if(ret) hn--;
 
     ret = lttv_trace_find_hook(ts->parent.parent.t,
         LTT_FACILITY_PROCESS, LTT_EVENT_EXIT,
         LTT_FIELD_PID, 0, 0,
         process_exit, NULL,
-        &g_array_index(hooks, LttvTraceHook, 9));
-    g_assert(!ret);
+        &g_array_index(hooks, LttvTraceHook, hn++));
+    if(ret) hn--;
     
     ret = lttv_trace_find_hook(ts->parent.parent.t,
         LTT_FACILITY_PROCESS, LTT_EVENT_FREE,
         LTT_FIELD_PID, 0, 0,
         process_free, NULL,
-        &g_array_index(hooks, LttvTraceHook, 10));
-    g_assert(!ret);
+        &g_array_index(hooks, LttvTraceHook, hn++));
+    if(ret) hn--;
+
+    ret = lttv_trace_find_hook(ts->parent.parent.t,
+        LTT_FACILITY_USER_GENERIC, LTT_EVENT_FUNCTION_ENTRY,
+        LTT_FIELD_THIS_FN, LTT_FIELD_CALL_SITE, 0,
+        after_function_entry, NULL,
+        &g_array_index(hooks, LttvTraceHook, hn++));
+    if(ret) hn--;
+
+    ret = lttv_trace_find_hook(ts->parent.parent.t,
+        LTT_FACILITY_USER_GENERIC, LTT_EVENT_FUNCTION_EXIT,
+        LTT_FIELD_THIS_FN, LTT_FIELD_CALL_SITE, 0,
+        after_function_exit, NULL,
+        &g_array_index(hooks, LttvTraceHook, hn++));
+    if(ret) hn--;
+
+    /* statedump-related hooks */
+    ret = lttv_trace_find_hook(ts->parent.parent.t,
+        LTT_FACILITY_STATEDUMP, LTT_EVENT_ENUM_PROCESS_STATE,
+        LTT_FIELD_PID, LTT_FIELD_PARENT_PID, LTT_FIELD_NAME,
+        after_enum_process_state, NULL,
+        &g_array_index(hooks, LttvTraceHook, hn++));
+    if(ret) hn--;
 
+    g_array_set_size(hooks, hn);
 
     after_hooks = hooks;
 
@@ -1110,10 +1351,11 @@ static void module_init()
   LTTV_STATS_MODE_TYPES = g_quark_from_string("mode_types");
   LTTV_STATS_MODES = g_quark_from_string("modes");
   LTTV_STATS_SUBMODES = g_quark_from_string("submodes");
-  LTTV_STATS_SUBMODES = g_quark_from_string("functions");
+  LTTV_STATS_FUNCTIONS = g_quark_from_string("functions");
   LTTV_STATS_EVENT_TYPES = g_quark_from_string("event_types");
   LTTV_STATS_CPU_TIME = g_quark_from_string("cpu time");
-  LTTV_STATS_ELAPSED_TIME = g_quark_from_string("elapsed time");
+  LTTV_STATS_CUMULATIVE_CPU_TIME = g_quark_from_string("cumulative cpu time (includes nested routines and modes)");
+  LTTV_STATS_ELAPSED_TIME = g_quark_from_string("elapsed time (includes per process waiting time)");
   LTTV_STATS_EVENTS = g_quark_from_string("events");
   LTTV_STATS_EVENTS_COUNT = g_quark_from_string("events count");
   LTTV_STATS_BEFORE_HOOKS = g_quark_from_string("saved stats before hooks");
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