--- /dev/null
+
+#include <lttv/state.h>
+#include <ltt/facility.h>
+#include <ltt/trace.h>
+#include <ltt/event.h>
+#include <ltt/type.h>
+
+LttvExecutionMode
+ LTTV_STATE_MODE_UNKNOWN,
+ LTTV_STATE_USER_MODE,
+ LTTV_STATE_SYSCALL,
+ LTTV_STATE_TRAP,
+ LTTV_STATE_IRQ;
+
+LttvExecutionSubmode
+ LTTV_STATE_SUBMODE_UNKNOWN,
+ LTTV_STATE_SUBMODE_NONE;
+
+LttvProcessStatus
+ LTTV_STATE_UNNAMED,
+ LTTV_STATE_WAIT_FORK,
+ LTTV_STATE_WAIT_CPU,
+ LTTV_STATE_EXIT,
+ LTTV_STATE_WAIT,
+ LTTV_STATE_RUN;
+
+static GQuark
+ LTTV_STATE_TRACEFILES,
+ LTTV_STATE_PROCESSES,
+ LTTV_STATE_PROCESS,
+ LTTV_STATE_EVENT,
+ LTTV_STATE_SAVED_STATES,
+ LTTV_STATE_TIME,
+ LTTV_STATE_HOOKS;
+
+
+static void fill_name_tables(LttvTraceState *tcs);
+
+static void free_name_tables(LttvTraceState *tcs);
+
+static void lttv_state_free_process_table(GHashTable *processes);
+
+static LttvProcessState *create_process(LttvTracefileState *tfs,
+ LttvProcessState *parent, guint pid);
+
+void lttv_state_save(LttvTraceState *self, LttvAttribute *container)
+{
+ LTTV_TRACE_STATE_GET_CLASS(self)->state_save(self, container);
+}
+
+
+void lttv_state_restore(LttvTraceState *self, LttvAttribute *container)
+{
+ LTTV_TRACE_STATE_GET_CLASS(self)->state_restore(self, container);
+}
+
+
+void lttv_state_saved_state_free(LttvTraceState *self,
+ LttvAttribute *container)
+{
+ LTTV_TRACE_STATE_GET_CLASS(self)->state_restore(self, container);
+}
+
+
+static void
+restore_init_state(LttvTraceState *self)
+{
+ guint i, nb_control, nb_per_cpu, nb_tracefile;
+
+ LttvTracefileState *tfcs;
+
+ LttTime null_time = {0,0};
+
+ if(self->processes != NULL) lttv_state_free_process_table(self->processes);
+ self->processes = g_hash_table_new(g_direct_hash, g_direct_equal);
+ self->nb_event = 0;
+
+ nb_control = ltt_trace_control_tracefile_number(self->parent.t);
+ nb_per_cpu = ltt_trace_per_cpu_tracefile_number(self->parent.t);
+ nb_tracefile = nb_control + nb_per_cpu;
+ for(i = 0 ; i < nb_tracefile ; i++) {
+ if(i < nb_control) {
+ tfcs = LTTV_TRACEFILE_STATE(self->parent.control_tracefiles[i]);
+ }
+ else {
+ tfcs = LTTV_TRACEFILE_STATE(self->parent.per_cpu_tracefiles[i - nb_control]);
+ }
+
+ tfcs->parent.timestamp = null_time;
+ tfcs->saved_position = 0;
+ tfcs->process = create_process(tfcs, NULL,0);
+ }
+}
+
+
+static void
+init(LttvTracesetState *self, LttvTraceset *ts)
+{
+ guint i, j, nb_trace, nb_control, nb_per_cpu, nb_tracefile;
+
+ LttvTraceContext *tc;
+
+ LttvTraceState *tcs;
+
+ LttvTracefileState *tfcs;
+
+ LTTV_TRACESET_CONTEXT_CLASS(g_type_class_peek(LTTV_TRACESET_CONTEXT_TYPE))->
+ init((LttvTracesetContext *)self, ts);
+
+ nb_trace = lttv_traceset_number(ts);
+ for(i = 0 ; i < nb_trace ; i++) {
+ tc = self->parent.traces[i];
+ tcs = (LttvTraceState *)tc;
+ tcs->save_interval = 100000;
+ fill_name_tables(tcs);
+
+ nb_control = ltt_trace_control_tracefile_number(tc->t);
+ nb_per_cpu = ltt_trace_per_cpu_tracefile_number(tc->t);
+ nb_tracefile = nb_control + nb_per_cpu;
+ for(j = 0 ; j < nb_tracefile ; j++) {
+ if(j < nb_control) {
+ tfcs = LTTV_TRACEFILE_STATE(tc->control_tracefiles[j]);
+ }
+ else {
+ tfcs = LTTV_TRACEFILE_STATE(tc->per_cpu_tracefiles[j - nb_control]);
+ }
+ tfcs->cpu_name= g_quark_from_string(ltt_tracefile_name(tfcs->parent.tf));
+ }
+ tcs->processes = NULL;
+ restore_init_state(tcs);
+ }
+}
+
+
+static void
+fini(LttvTracesetState *self)
+{
+ guint i, j, nb_trace, nb_tracefile;
+
+ LttvTraceState *tcs;
+
+ LttvTracefileState *tfcs;
+
+ nb_trace = lttv_traceset_number(LTTV_TRACESET_CONTEXT(self)->ts);
+ for(i = 0 ; i < nb_trace ; i++) {
+ tcs = (LttvTraceState *)(LTTV_TRACESET_CONTEXT(self)->traces[i]);
+ lttv_state_free_process_table(tcs->processes);
+ tcs->processes = NULL;
+ free_name_tables(tcs);
+ }
+ LTTV_TRACESET_CONTEXT_CLASS(g_type_class_peek(LTTV_TRACESET_CONTEXT_TYPE))->
+ fini((LttvTracesetContext *)self);
+}
+
+
+static LttvTracesetContext *
+new_traceset_context(LttvTracesetContext *self)
+{
+ return LTTV_TRACESET_CONTEXT(g_object_new(LTTV_TRACESET_STATE_TYPE, NULL));
+}
+
+
+static LttvTraceContext *
+new_trace_context(LttvTracesetContext *self)
+{
+ return LTTV_TRACE_CONTEXT(g_object_new(LTTV_TRACE_STATE_TYPE, NULL));
+}
+
+
+static LttvTracefileContext *
+new_tracefile_context(LttvTracesetContext *self)
+{
+ return LTTV_TRACEFILE_CONTEXT(g_object_new(LTTV_TRACEFILE_STATE_TYPE, NULL));
+}
+
+
+static void copy_process_state(gpointer key, gpointer value,gpointer user_data)
+{
+ LttvProcessState *process, *new_process;
+
+ GHashTable *new_processes = (GHashTable *)user_data;
+
+ guint i;
+
+ process = (LttvProcessState *)value;
+ new_process = g_new(LttvProcessState, 1);
+ *new_process = *process;
+ new_process->execution_stack = g_array_new(FALSE, FALSE,
+ sizeof(LttvExecutionState));
+ g_array_set_size(new_process->execution_stack,process->execution_stack->len);
+ for(i = 0 ; i < process->execution_stack->len; i++) {
+ g_array_index(new_process->execution_stack, LttvExecutionState, i) =
+ g_array_index(process->execution_stack, LttvExecutionState, i);
+ }
+ new_process->state = &g_array_index(new_process->execution_stack,
+ LttvExecutionState, new_process->execution_stack->len - 1);
+ g_hash_table_insert(new_processes, GUINT_TO_POINTER(new_process->pid),
+ new_process);
+}
+
+
+static GHashTable *lttv_state_copy_process_table(GHashTable *processes)
+{
+ GHashTable *new_processes = g_hash_table_new(g_direct_hash, g_direct_equal);
+
+ g_hash_table_foreach(processes, copy_process_state, new_processes);
+ return new_processes;
+}
+
+
+/* The saved state for each trace contains a member "processes", which
+ stores a copy of the process table, and a member "tracefiles" with
+ one entry per tracefile. Each tracefile has a "process" member pointing
+ to the current process and a "position" member storing the tracefile
+ position (needed to seek to the current "next" event. */
+
+static void state_save(LttvTraceState *self, LttvAttribute *container)
+{
+ guint i, nb_control, nb_per_cpu, nb_tracefile;
+
+ LttvTracefileState *tfcs;
+
+ LttvAttribute *tracefiles_tree, *tracefile_tree;
+
+ LttvAttributeType type;
+
+ LttvAttributeValue value;
+
+ LttvAttributeName name;
+
+ LttEventPosition *ep;
+
+ tracefiles_tree = lttv_attribute_find_subdir(container,
+ LTTV_STATE_TRACEFILES);
+
+ value = lttv_attribute_add(container, LTTV_STATE_PROCESSES,
+ LTTV_POINTER);
+ *(value.v_pointer) = lttv_state_copy_process_table(self->processes);
+
+ nb_control = ltt_trace_control_tracefile_number(self->parent.t);
+ nb_per_cpu = ltt_trace_per_cpu_tracefile_number(self->parent.t);
+ nb_tracefile = nb_control + nb_per_cpu;
+
+ for(i = 0 ; i < nb_tracefile ; i++) {
+ if(i < nb_control)
+ tfcs = (LttvTracefileState *)self->parent.control_tracefiles[i];
+ else tfcs = (LttvTracefileState *)
+ self->parent.per_cpu_tracefiles[i - nb_control];
+
+ tracefile_tree = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL);
+ value = lttv_attribute_add(tracefiles_tree, i,
+ LTTV_GOBJECT);
+ *(value.v_gobject) = (GObject *)tracefile_tree;
+ value = lttv_attribute_add(tracefile_tree, LTTV_STATE_PROCESS,
+ LTTV_UINT);
+ *(value.v_uint) = tfcs->process->pid;
+ value = lttv_attribute_add(tracefile_tree, LTTV_STATE_EVENT,
+ LTTV_POINTER);
+ if(tfcs->parent.e == NULL) *(value.v_pointer) = NULL;
+ else {
+ ep = ltt_event_position_new();
+ ltt_event_position(tfcs->parent.e, ep);
+ *(value.v_pointer) = ep;
+ }
+ }
+}
+
+
+static void state_restore(LttvTraceState *self, LttvAttribute *container)
+{
+ guint i, nb_control, nb_per_cpu, nb_tracefile;
+
+ LttvTracefileState *tfcs;
+
+ LttvAttribute *tracefiles_tree, *tracefile_tree;
+
+ LttvAttributeType type;
+
+ LttvAttributeValue value;
+
+ LttvAttributeName name;
+
+ LttEventPosition *ep;
+
+ tracefiles_tree = lttv_attribute_find_subdir(container,
+ LTTV_STATE_TRACEFILES);
+
+ type = lttv_attribute_get_by_name(container, LTTV_STATE_PROCESSES,
+ &value);
+ g_assert(type == LTTV_POINTER);
+ lttv_state_free_process_table(self->processes);
+ self->processes = lttv_state_copy_process_table(*(value.v_pointer));
+
+ nb_control = ltt_trace_control_tracefile_number(self->parent.t);
+ nb_per_cpu = ltt_trace_per_cpu_tracefile_number(self->parent.t);
+ nb_tracefile = nb_control + nb_per_cpu;
+
+ for(i = 0 ; i < nb_tracefile ; i++) {
+ if(i < nb_control) tfcs = (LttvTracefileState *)
+ self->parent.control_tracefiles[i];
+ else tfcs = (LttvTracefileState *)
+ self->parent.per_cpu_tracefiles[i - nb_control];
+
+ type = lttv_attribute_get(tracefiles_tree, i, &name, &value);
+ g_assert(type == LTTV_GOBJECT);
+ tracefile_tree = *((LttvAttribute **)(value.v_gobject));
+
+ type = lttv_attribute_get_by_name(tracefile_tree, LTTV_STATE_PROCESS,
+ &value);
+ g_assert(type == LTTV_UINT);
+ tfcs->process = lttv_state_find_process(tfcs, *(value.v_uint));
+ type = lttv_attribute_get_by_name(tracefile_tree, LTTV_STATE_EVENT,
+ &value);
+ g_assert(type == LTTV_POINTER);
+ if(*(value.v_pointer) == NULL) tfcs->parent.e = NULL;
+ else {
+ ep = *(value.v_pointer);
+ ltt_tracefile_seek_position(tfcs->parent.tf, ep);
+ tfcs->parent.e = ltt_tracefile_read(tfcs->parent.tf);
+ tfcs->parent.timestamp = ltt_event_time(tfcs->parent.e);
+ }
+ }
+}
+
+
+static void state_saved_free(LttvTraceState *self, LttvAttribute *container)
+{
+ guint i, nb_control, nb_per_cpu, nb_tracefile;
+
+ LttvTracefileState *tfcs;
+
+ LttvAttribute *tracefiles_tree, *tracefile_tree;
+
+ LttvAttributeType type;
+
+ LttvAttributeValue value;
+
+ LttvAttributeName name;
+
+ LttEventPosition *ep;
+
+ tracefiles_tree = lttv_attribute_find_subdir(container,
+ LTTV_STATE_TRACEFILES);
+ lttv_attribute_remove_by_name(container, LTTV_STATE_TRACEFILES);
+
+ type = lttv_attribute_get_by_name(container, LTTV_STATE_PROCESSES,
+ &value);
+ g_assert(type == LTTV_POINTER);
+ lttv_state_free_process_table(*(value.v_pointer));
+ *(value.v_pointer) = NULL;
+ lttv_attribute_remove_by_name(container, LTTV_STATE_PROCESSES);
+
+ nb_control = ltt_trace_control_tracefile_number(self->parent.t);
+ nb_per_cpu = ltt_trace_per_cpu_tracefile_number(self->parent.t);
+ nb_tracefile = nb_control + nb_per_cpu;
+
+ for(i = 0 ; i < nb_tracefile ; i++) {
+ if(i < nb_control) tfcs = (LttvTracefileState *)
+ self->parent.control_tracefiles[i];
+ else tfcs = (LttvTracefileState *)
+ self->parent.per_cpu_tracefiles[i - nb_control];
+
+ type = lttv_attribute_get(tracefiles_tree, i, &name, &value);
+ g_assert(type == LTTV_GOBJECT);
+ tracefile_tree = *((LttvAttribute **)(value.v_gobject));
+
+ type = lttv_attribute_get_by_name(tracefile_tree, LTTV_STATE_EVENT,
+ &value);
+ g_assert(type == LTTV_POINTER);
+ if(*(value.v_pointer) != NULL) g_free(*(value.v_pointer));
+ }
+ lttv_attribute_recursive_free(tracefiles_tree);
+}
+
+
+static void
+fill_name_tables(LttvTraceState *tcs)
+{
+ int i, nb;
+
+ char *f_name, *e_name;
+
+ LttvTraceHook h;
+
+ LttEventType *et;
+
+ LttType *t;
+
+ GString *fe_name = g_string_new("");
+
+ nb = ltt_trace_eventtype_number(tcs->parent.t);
+ tcs->eventtype_names = g_new(GQuark, nb);
+ for(i = 0 ; i < nb ; i++) {
+ et = ltt_trace_eventtype_get(tcs->parent.t, i);
+ e_name = ltt_eventtype_name(et);
+ f_name = ltt_facility_name(ltt_eventtype_facility(et));
+ g_string_printf(fe_name, "%s.%s", f_name, e_name);
+ tcs->eventtype_names[i] = g_quark_from_string(fe_name->str);
+ }
+
+ lttv_trace_find_hook(tcs->parent.t, "core", "syscall_entry",
+ "syscall_id", NULL, NULL, NULL, &h);
+ t = ltt_field_type(h.f1);
+ nb = ltt_type_element_number(t);
+
+ /* CHECK syscalls should be an emun but currently are not!
+ tcs->syscall_names = g_new(GQuark, nb);
+
+ for(i = 0 ; i < nb ; i++) {
+ tcs->syscall_names[i] = g_quark_from_string(ltt_enum_string_get(t, i));
+ }
+ */
+
+ tcs->syscall_names = g_new(GQuark, 256);
+ for(i = 0 ; i < 256 ; i++) {
+ g_string_printf(fe_name, "syscall %d", i);
+ tcs->syscall_names[i] = g_quark_from_string(fe_name->str);
+ }
+
+ lttv_trace_find_hook(tcs->parent.t, "core", "trap_entry",
+ "trap_id", NULL, NULL, NULL, &h);
+ t = ltt_field_type(h.f1);
+ nb = ltt_type_element_number(t);
+
+ /*
+ tcs->trap_names = g_new(GQuark, nb);
+ for(i = 0 ; i < nb ; i++) {
+ tcs->trap_names[i] = g_quark_from_string(ltt_enum_string_get(t, i));
+ }
+ */
+
+ tcs->trap_names = g_new(GQuark, 256);
+ for(i = 0 ; i < 256 ; i++) {
+ g_string_printf(fe_name, "trap %d", i);
+ tcs->trap_names[i] = g_quark_from_string(fe_name->str);
+ }
+
+ lttv_trace_find_hook(tcs->parent.t, "core", "irq_entry",
+ "irq_id", NULL, NULL, NULL, &h);
+ t = ltt_field_type(h.f1);
+ nb = ltt_type_element_number(t);
+
+ /*
+ tcs->irq_names = g_new(GQuark, nb);
+ for(i = 0 ; i < nb ; i++) {
+ tcs->irq_names[i] = g_quark_from_string(ltt_enum_string_get(t, i));
+ }
+ */
+
+ tcs->irq_names = g_new(GQuark, 256);
+ for(i = 0 ; i < 256 ; i++) {
+ g_string_printf(fe_name, "irq %d", i);
+ tcs->irq_names[i] = g_quark_from_string(fe_name->str);
+ }
+
+ g_string_free(fe_name, TRUE);
+}
+
+
+static void
+free_name_tables(LttvTraceState *tcs)
+{
+ g_free(tcs->eventtype_names);
+ g_free(tcs->syscall_names);
+ g_free(tcs->trap_names);
+ g_free(tcs->irq_names);
+}
+
+
+static void push_state(LttvTracefileState *tfs, LttvExecutionMode t,
+ guint state_id)
+{
+ LttvExecutionState *es;
+
+ LttvProcessState *process = tfs->process;
+
+ guint depth = process->execution_stack->len;
+
+ g_array_set_size(process->execution_stack, depth + 1);
+ es = &g_array_index(process->execution_stack, LttvExecutionState, depth);
+ es->t = t;
+ es->n = state_id;
+ es->entry = es->change = tfs->parent.timestamp;
+ es->s = process->state->s;
+ process->state = es;
+}
+
+
+static void pop_state(LttvTracefileState *tfs, LttvExecutionMode t)
+{
+ LttvProcessState *process = tfs->process;
+
+ guint depth = process->execution_stack->len - 1;
+
+ if(process->state->t != t){
+ g_warning("Different execution mode type (%d.%09d): ignore it\n",
+ tfs->parent.timestamp.tv_sec, tfs->parent.timestamp.tv_nsec);
+ g_warning("process state has %s when pop_int is %s\n",
+ g_quark_to_string(process->state->t),
+ g_quark_to_string(t));
+ g_warning("{ %u, %u, %s, %s }\n",
+ process->pid,
+ process->ppid,
+ g_quark_to_string(process->name),
+ g_quark_to_string(process->state->s));
+ return;
+ }
+
+ if(depth == 0){
+ g_warning("Trying to pop last state on stack (%d.%09d): ignore it\n",
+ tfs->parent.timestamp.tv_sec, tfs->parent.timestamp.tv_nsec);
+ return;
+ }
+
+ g_array_remove_index(process->execution_stack, depth);
+ depth--;
+ process->state = &g_array_index(process->execution_stack, LttvExecutionState,
+ depth);
+ process->state->change = tfs->parent.timestamp;
+}
+
+
+static LttvProcessState *create_process(LttvTracefileState *tfs,
+ LttvProcessState *parent, guint pid)
+{
+ LttvProcessState *process = g_new(LttvProcessState, 1);
+
+ LttvExecutionState *es;
+
+ LttvTraceContext *tc;
+
+ LttvTraceState *tcs;
+
+ char buffer[128];
+
+ tcs = (LttvTraceState *)tc = tfs->parent.t_context;
+
+ g_hash_table_insert(tcs->processes, GUINT_TO_POINTER(pid), process);
+ process->pid = pid;
+
+ if(parent) {
+ process->ppid = parent->pid;
+ process->name = parent->name;
+ }
+ else {
+ process->ppid = 0;
+ process->name = LTTV_STATE_UNNAMED;
+ }
+
+ process->creation_time = tfs->parent.timestamp;
+ sprintf(buffer,"%d-%lu.%lu",pid, process->creation_time.tv_sec,
+ process->creation_time.tv_nsec);
+ process->pid_time = g_quark_from_string(buffer);
+ process->execution_stack = g_array_new(FALSE, FALSE,
+ sizeof(LttvExecutionState));
+ g_array_set_size(process->execution_stack, 1);
+ es = process->state = &g_array_index(process->execution_stack,
+ LttvExecutionState, 0);
+ es->t = LTTV_STATE_USER_MODE;
+ es->n = LTTV_STATE_SUBMODE_NONE;
+ es->entry = tfs->parent.timestamp;
+ es->change = tfs->parent.timestamp;
+ es->s = LTTV_STATE_WAIT_FORK;
+
+ return process;
+}
+
+
+LttvProcessState *lttv_state_find_process(LttvTracefileState *tfs,
+ guint pid)
+{
+ LttvTraceState *ts =(LttvTraceState *)LTTV_TRACEFILE_CONTEXT(tfs)->t_context;
+ LttvProcessState *process = g_hash_table_lookup(ts->processes,
+ GUINT_TO_POINTER(pid));
+ if(process == NULL) process = create_process(tfs, NULL, pid);
+ return process;
+}
+
+
+static void exit_process(LttvTracefileState *tfs, LttvProcessState *process)
+{
+ LttvTraceState *ts = LTTV_TRACE_STATE(tfs->parent.t_context);
+
+ g_hash_table_remove(ts->processes, GUINT_TO_POINTER(process->pid));
+ g_array_free(process->execution_stack, TRUE);
+ g_free(process);
+}
+
+
+static void free_process_state(gpointer key, gpointer value,gpointer user_data)
+{
+ g_array_free(((LttvProcessState *)value)->execution_stack, TRUE);
+ g_free(value);
+}
+
+
+static void lttv_state_free_process_table(GHashTable *processes)
+{
+ g_hash_table_foreach(processes, free_process_state, NULL);
+ g_hash_table_destroy(processes);
+}
+
+
+static gboolean syscall_entry(void *hook_data, void *call_data)
+{
+ LttField *f = ((LttvTraceHook *)hook_data)->f1;
+
+ LttvTracefileState *s = (LttvTracefileState *)call_data;
+
+ LttvExecutionSubmode submode;
+
+ submode = ((LttvTraceState *)(s->parent.t_context))->syscall_names[
+ ltt_event_get_unsigned(s->parent.e, f)];
+ push_state(s, LTTV_STATE_SYSCALL, submode);
+ return FALSE;
+}
+
+
+static gboolean syscall_exit(void *hook_data, void *call_data)
+{
+ LttvTracefileState *s = (LttvTracefileState *)call_data;
+
+ pop_state(s, LTTV_STATE_SYSCALL);
+ return FALSE;
+}
+
+
+static gboolean trap_entry(void *hook_data, void *call_data)
+{
+ LttField *f = ((LttvTraceHook *)hook_data)->f1;
+
+ LttvTracefileState *s = (LttvTracefileState *)call_data;
+
+ LttvExecutionSubmode submode;
+
+ submode = ((LttvTraceState *)(s->parent.t_context))->trap_names[
+ ltt_event_get_unsigned(s->parent.e, f)];
+ push_state(s, LTTV_STATE_TRAP, submode);
+ return FALSE;
+}
+
+
+static gboolean trap_exit(void *hook_data, void *call_data)
+{
+ LttvTracefileState *s = (LttvTracefileState *)call_data;
+
+ pop_state(s, LTTV_STATE_TRAP);
+ return FALSE;
+}
+
+
+static gboolean irq_entry(void *hook_data, void *call_data)
+{
+ LttField *f = ((LttvTraceHook *)hook_data)->f1;
+
+ LttvTracefileState *s = (LttvTracefileState *)call_data;
+
+ LttvExecutionSubmode submode;
+
+ submode = ((LttvTraceState *)(s->parent.t_context))->irq_names[
+ ltt_event_get_unsigned(s->parent.e, f)];
+
+ /* Do something with the info about being in user or system mode when int? */
+ push_state(s, LTTV_STATE_IRQ, submode);
+ return FALSE;
+}
+
+
+static gboolean irq_exit(void *hook_data, void *call_data)
+{
+ LttvTracefileState *s = (LttvTracefileState *)call_data;
+
+ pop_state(s, LTTV_STATE_IRQ);
+ return FALSE;
+}
+
+
+static gboolean schedchange(void *hook_data, void *call_data)
+{
+ LttvTraceHook *h = (LttvTraceHook *)hook_data;
+
+ LttvTracefileState *s = (LttvTracefileState *)call_data;
+
+ guint pid_in, pid_out, state_out;
+
+ pid_in = ltt_event_get_unsigned(s->parent.e, h->f1);
+ pid_out = ltt_event_get_unsigned(s->parent.e, h->f2);
+ state_out = ltt_event_get_unsigned(s->parent.e, h->f3);
+
+ if(s->process != NULL) {
+
+ if(state_out == 0) s->process->state->s = LTTV_STATE_WAIT_CPU;
+ else if(s->process->state->s == LTTV_STATE_EXIT)
+ exit_process(s, s->process);
+ else s->process->state->s = LTTV_STATE_WAIT;
+
+ if(s->process->pid == 0)
+ s->process->pid = pid_out;
+
+ s->process->state->change = s->parent.timestamp;
+ }
+ s->process = lttv_state_find_process(s, pid_in);
+ s->process->state->s = LTTV_STATE_RUN;
+ s->process->state->change = s->parent.timestamp;
+ return FALSE;
+}
+
+
+static gboolean process_fork(void *hook_data, void *call_data)
+{
+ LttField *f = ((LttvTraceHook *)hook_data)->f1;
+
+ LttvTracefileState *s = (LttvTracefileState *)call_data;
+
+ guint child_pid;
+
+ child_pid = ltt_event_get_unsigned(s->parent.e, f);
+ create_process(s, s->process, child_pid);
+ return FALSE;
+}
+
+
+static gboolean process_exit(void *hook_data, void *call_data)
+{
+ LttvTracefileState *s = (LttvTracefileState *)call_data;
+
+ if(s->process != NULL) {
+ s->process->state->s = LTTV_STATE_EXIT;
+ }
+ return FALSE;
+}
+
+
+void lttv_state_add_event_hooks(LttvTracesetState *self)
+{
+ LttvTraceset *traceset = self->parent.ts;
+
+ guint i, j, k, nb_trace, nb_control, nb_per_cpu, nb_tracefile;
+
+ LttvTraceState *ts;
+
+ LttvTracefileState *tfs;
+
+ GArray *hooks;
+
+ LttvTraceHook hook;
+
+ LttvAttributeValue val;
+
+ nb_trace = lttv_traceset_number(traceset);
+ for(i = 0 ; i < nb_trace ; i++) {
+ ts = (LttvTraceState *)self->parent.traces[i];
+
+ /* Find the eventtype id for the following events and register the
+ associated by id hooks. */
+
+ hooks = g_array_new(FALSE, FALSE, sizeof(LttvTraceHook));
+ g_array_set_size(hooks, 9);
+
+ lttv_trace_find_hook(ts->parent.t, "core","syscall_entry","syscall_id",
+ NULL, NULL, syscall_entry, &g_array_index(hooks, LttvTraceHook, 0));
+
+ lttv_trace_find_hook(ts->parent.t, "core", "syscall_exit", NULL, NULL,
+ NULL, syscall_exit, &g_array_index(hooks, LttvTraceHook, 1));
+
+ lttv_trace_find_hook(ts->parent.t, "core", "trap_entry", "trap_id",
+ NULL, NULL, trap_entry, &g_array_index(hooks, LttvTraceHook, 2));
+
+ lttv_trace_find_hook(ts->parent.t, "core", "trap_exit", NULL, NULL, NULL,
+ trap_exit, &g_array_index(hooks, LttvTraceHook, 3));
+
+ lttv_trace_find_hook(ts->parent.t, "core", "irq_entry", "irq_id", NULL,
+ NULL, irq_entry, &g_array_index(hooks, LttvTraceHook, 4));
+
+ lttv_trace_find_hook(ts->parent.t, "core", "irq_exit", NULL, NULL, NULL,
+ irq_exit, &g_array_index(hooks, LttvTraceHook, 5));
+
+ lttv_trace_find_hook(ts->parent.t, "core", "schedchange", "in", "out",
+ "out_state", schedchange, &g_array_index(hooks, LttvTraceHook, 6));
+
+ lttv_trace_find_hook(ts->parent.t, "core", "process_fork", "child_pid",
+ NULL, NULL, process_fork, &g_array_index(hooks, LttvTraceHook, 7));
+
+ lttv_trace_find_hook(ts->parent.t, "core", "process_exit", NULL, NULL,
+ NULL, process_exit, &g_array_index(hooks, LttvTraceHook, 8));
+
+ /* Add these hooks to each before_event_by_id hooks list */
+
+ nb_control = ltt_trace_control_tracefile_number(ts->parent.t);
+ nb_per_cpu = ltt_trace_per_cpu_tracefile_number(ts->parent.t);
+ nb_tracefile = nb_control + nb_per_cpu;
+ for(j = 0 ; j < nb_tracefile ; j++) {
+ if(j < nb_control) {
+ tfs = LTTV_TRACEFILE_STATE(ts->parent.control_tracefiles[j]);
+ }
+ else {
+ tfs = LTTV_TRACEFILE_STATE(ts->parent.per_cpu_tracefiles[j-nb_control]);
+ }
+
+ for(k = 0 ; k < hooks->len ; k++) {
+ hook = g_array_index(hooks, LttvTraceHook, k);
+ lttv_hooks_add(lttv_hooks_by_id_find(tfs->parent.after_event_by_id,
+ hook.id), hook.h, &g_array_index(hooks, LttvTraceHook, k));
+ }
+ }
+ lttv_attribute_find(self->parent.a, LTTV_STATE_HOOKS, LTTV_POINTER, &val);
+ *(val.v_pointer) = hooks;
+ }
+}
+
+
+void lttv_state_remove_event_hooks(LttvTracesetState *self)
+{
+ LttvTraceset *traceset = self->parent.ts;
+
+ guint i, j, k, nb_trace, nb_control, nb_per_cpu, nb_tracefile;
+
+ LttvTraceState *ts;
+
+ LttvTracefileState *tfs;
+
+ GArray *hooks;
+
+ LttvTraceHook hook;
+
+ LttvAttributeValue val;
+
+ nb_trace = lttv_traceset_number(traceset);
+ for(i = 0 ; i < nb_trace ; i++) {
+ ts = LTTV_TRACE_STATE(self->parent.traces[i]);
+ lttv_attribute_find(self->parent.a, LTTV_STATE_HOOKS, LTTV_POINTER, &val);
+ hooks = *(val.v_pointer);
+
+ /* Add these hooks to each before_event_by_id hooks list */
+
+ nb_control = ltt_trace_control_tracefile_number(ts->parent.t);
+ nb_per_cpu = ltt_trace_per_cpu_tracefile_number(ts->parent.t);
+ nb_tracefile = nb_control + nb_per_cpu;
+ for(j = 0 ; j < nb_tracefile ; j++) {
+ if(j < nb_control) {
+ tfs = LTTV_TRACEFILE_STATE(ts->parent.control_tracefiles[j]);
+ }
+ else {
+ tfs = LTTV_TRACEFILE_STATE(ts->parent.per_cpu_tracefiles[j-nb_control]);
+ }
+
+ for(k = 0 ; k < hooks->len ; k++) {
+ hook = g_array_index(hooks, LttvTraceHook, k);
+ lttv_hooks_remove_data(
+ lttv_hooks_by_id_find(tfs->parent.after_event_by_id,
+ hook.id), hook.h, &g_array_index(hooks, LttvTraceHook, k));
+ }
+ }
+ g_array_free(hooks, TRUE);
+ }
+}
+
+
+static gboolean block_end(void *hook_data, void *call_data)
+{
+ LttvTracefileState *tfcs = (LttvTracefileState *)call_data;
+
+ LttvTraceState *tcs = (LttvTraceState *)(tfcs->parent.t_context);
+
+ LttEventPosition *ep = ltt_event_position_new();
+
+ guint nb_block, nb_event;
+
+ LttTracefile *tf;
+
+ LttvAttribute *saved_states_tree, *saved_state_tree;
+
+ LttvAttributeValue value;
+
+ ltt_event_position(tfcs->parent.e, ep);
+
+ ltt_event_position_get(ep, &nb_block, &nb_event, &tf);
+ tcs->nb_event += nb_event - tfcs->saved_position;
+ tfcs->saved_position = 0;
+ if(tcs->nb_event >= tcs->save_interval) {
+ saved_states_tree = lttv_attribute_find_subdir(tcs->parent.t_a,
+ LTTV_STATE_SAVED_STATES);
+ saved_state_tree = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL);
+ value = lttv_attribute_add(saved_states_tree,
+ lttv_attribute_get_number(saved_states_tree), LTTV_GOBJECT);
+ *(value.v_gobject) = (GObject *)saved_state_tree;
+ value = lttv_attribute_add(saved_state_tree, LTTV_STATE_TIME, LTTV_TIME);
+ *(value.v_time) = tfcs->parent.timestamp;
+ lttv_state_save(tcs, saved_state_tree);
+ tcs->nb_event = 0;
+ }
+ return FALSE;
+}
+
+
+void lttv_state_save_add_event_hooks(LttvTracesetState *self)
+{
+ LttvTraceset *traceset = self->parent.ts;
+
+ guint i, j, k, nb_trace, nb_control, nb_per_cpu, nb_tracefile;
+
+ LttvTraceState *ts;
+
+ LttvTracefileState *tfs;
+
+ LttvTraceHook hook;
+
+ nb_trace = lttv_traceset_number(traceset);
+ for(i = 0 ; i < nb_trace ; i++) {
+ ts = (LttvTraceState *)self->parent.traces[i];
+ lttv_trace_find_hook(ts->parent.t, "core","block_end",NULL,
+ NULL, NULL, block_end, &hook);
+
+ nb_control = ltt_trace_control_tracefile_number(ts->parent.t);
+ nb_per_cpu = ltt_trace_per_cpu_tracefile_number(ts->parent.t);
+ nb_tracefile = nb_control + nb_per_cpu;
+ for(j = 0 ; j < nb_tracefile ; j++) {
+ if(j < nb_control) {
+ tfs = LTTV_TRACEFILE_STATE(ts->parent.control_tracefiles[j]);
+ }
+ else {
+ tfs =LTTV_TRACEFILE_STATE(ts->parent.per_cpu_tracefiles[j-nb_control]);
+ }
+
+ lttv_hooks_add(lttv_hooks_by_id_find(tfs->parent.after_event_by_id,
+ hook.id), hook.h, NULL);
+ }
+ }
+}
+
+
+void lttv_state_save_remove_event_hooks(LttvTracesetState *self)
+{
+ LttvTraceset *traceset = self->parent.ts;
+
+ guint i, j, k, nb_trace, nb_control, nb_per_cpu, nb_tracefile;
+
+ LttvTraceState *ts;
+
+ LttvTracefileState *tfs;
+
+ LttvTraceHook hook;
+
+ nb_trace = lttv_traceset_number(traceset);
+ for(i = 0 ; i < nb_trace ; i++) {
+ ts = LTTV_TRACE_STATE(self->parent.traces[i]);
+ lttv_trace_find_hook(ts->parent.t, "core","block_end",NULL,
+ NULL, NULL, block_end, &hook);
+
+ nb_control = ltt_trace_control_tracefile_number(ts->parent.t);
+ nb_per_cpu = ltt_trace_per_cpu_tracefile_number(ts->parent.t);
+ nb_tracefile = nb_control + nb_per_cpu;
+ for(j = 0 ; j < nb_tracefile ; j++) {
+ if(j < nb_control) {
+ tfs = LTTV_TRACEFILE_STATE(ts->parent.control_tracefiles[j]);
+ }
+ else {
+ tfs =LTTV_TRACEFILE_STATE(ts->parent.per_cpu_tracefiles[j-nb_control]);
+ }
+
+ lttv_hooks_remove_data(lttv_hooks_by_id_find(
+ tfs->parent.after_event_by_id, hook.id), hook.h, NULL);
+ }
+ }
+}
+
+
+void lttv_state_restore_closest_state(LttvTracesetState *self, LttTime t)
+{
+ LttvTraceset *traceset = self->parent.ts;
+
+ guint i, j, nb_trace, nb_saved_state;
+
+ int min_pos, mid_pos, max_pos;
+
+ LttvTraceState *tcs;
+
+ LttvAttributeValue value;
+
+ LttvAttributeType type;
+
+ LttvAttributeName name;
+
+ LttvAttribute *saved_states_tree, *saved_state_tree, *closest_tree;
+
+ nb_trace = lttv_traceset_number(traceset);
+ for(i = 0 ; i < nb_trace ; i++) {
+ tcs = (LttvTraceState *)self->parent.traces[i];
+
+ saved_states_tree = lttv_attribute_find_subdir(tcs->parent.t_a,
+ LTTV_STATE_SAVED_STATES);
+ min_pos = -1;
+ max_pos = lttv_attribute_get_number(saved_states_tree) - 1;
+ mid_pos = max_pos / 2;
+ while(min_pos < max_pos) {
+ type = lttv_attribute_get(saved_states_tree, mid_pos, &name, &value);
+ g_assert(type == LTTV_GOBJECT);
+ saved_state_tree = *((LttvAttribute **)(value.v_gobject));
+ type = lttv_attribute_get_by_name(saved_state_tree, LTTV_STATE_TIME,
+ &value);
+ g_assert(type == LTTV_TIME);
+ if(ltt_time_compare(*(value.v_time), t) < 0) {
+ min_pos = mid_pos;
+ closest_tree = saved_state_tree;
+ }
+ else max_pos = mid_pos - 1;
+
+ mid_pos = (min_pos + max_pos + 1) / 2;
+ }
+ if(min_pos == -1) {
+ restore_init_state(tcs);
+ lttv_process_trace_seek_time(&(tcs->parent), ltt_time_zero);
+ }
+ else lttv_state_restore(tcs, closest_tree);
+ }
+}
+
+
+static void
+traceset_state_instance_init (GTypeInstance *instance, gpointer g_class)
+{
+}
+
+
+static void
+traceset_state_finalize (LttvTracesetState *self)
+{
+ G_OBJECT_CLASS(g_type_class_peek(LTTV_TRACESET_CONTEXT_TYPE))->
+ finalize(G_OBJECT(self));
+}
+
+
+static void
+traceset_state_class_init (LttvTracesetContextClass *klass)
+{
+ GObjectClass *gobject_class = G_OBJECT_CLASS(klass);
+
+ gobject_class->finalize = (void (*)(GObject *self)) traceset_state_finalize;
+ klass->init = (void (*)(LttvTracesetContext *self, LttvTraceset *ts))init;
+ klass->fini = (void (*)(LttvTracesetContext *self))fini;
+ klass->new_traceset_context = new_traceset_context;
+ klass->new_trace_context = new_trace_context;
+ klass->new_tracefile_context = new_tracefile_context;
+}
+
+
+GType
+lttv_traceset_state_get_type(void)
+{
+ static GType type = 0;
+ if (type == 0) {
+ static const GTypeInfo info = {
+ sizeof (LttvTracesetStateClass),
+ NULL, /* base_init */
+ NULL, /* base_finalize */
+ (GClassInitFunc) traceset_state_class_init, /* class_init */
+ NULL, /* class_finalize */
+ NULL, /* class_data */
+ sizeof (LttvTracesetContext),
+ 0, /* n_preallocs */
+ (GInstanceInitFunc) traceset_state_instance_init /* instance_init */
+ };
+
+ type = g_type_register_static (LTTV_TRACESET_CONTEXT_TYPE, "LttvTracesetStateType",
+ &info, 0);
+ }
+ return type;
+}
+
+
+static void
+trace_state_instance_init (GTypeInstance *instance, gpointer g_class)
+{
+}
+
+
+static void
+trace_state_finalize (LttvTraceState *self)
+{
+ G_OBJECT_CLASS(g_type_class_peek(LTTV_TRACE_CONTEXT_TYPE))->
+ finalize(G_OBJECT(self));
+}
+
+
+static void
+trace_state_class_init (LttvTraceStateClass *klass)
+{
+ GObjectClass *gobject_class = G_OBJECT_CLASS(klass);
+
+ gobject_class->finalize = (void (*)(GObject *self)) trace_state_finalize;
+ klass->state_save = state_save;
+ klass->state_restore = state_restore;
+ klass->state_saved_free = state_saved_free;
+}
+
+
+GType
+lttv_trace_state_get_type(void)
+{
+ static GType type = 0;
+ if (type == 0) {
+ static const GTypeInfo info = {
+ sizeof (LttvTraceStateClass),
+ NULL, /* base_init */
+ NULL, /* base_finalize */
+ (GClassInitFunc) trace_state_class_init, /* class_init */
+ NULL, /* class_finalize */
+ NULL, /* class_data */
+ sizeof (LttvTraceState),
+ 0, /* n_preallocs */
+ (GInstanceInitFunc) trace_state_instance_init /* instance_init */
+ };
+
+ type = g_type_register_static (LTTV_TRACE_CONTEXT_TYPE,
+ "LttvTraceStateType", &info, 0);
+ }
+ return type;
+}
+
+
+static void
+tracefile_state_instance_init (GTypeInstance *instance, gpointer g_class)
+{
+}
+
+
+static void
+tracefile_state_finalize (LttvTracefileState *self)
+{
+ G_OBJECT_CLASS(g_type_class_peek(LTTV_TRACEFILE_CONTEXT_TYPE))->
+ finalize(G_OBJECT(self));
+}
+
+
+static void
+tracefile_state_class_init (LttvTracefileStateClass *klass)
+{
+ GObjectClass *gobject_class = G_OBJECT_CLASS(klass);
+
+ gobject_class->finalize = (void (*)(GObject *self)) tracefile_state_finalize;
+}
+
+
+GType
+lttv_tracefile_state_get_type(void)
+{
+ static GType type = 0;
+ if (type == 0) {
+ static const GTypeInfo info = {
+ sizeof (LttvTracefileStateClass),
+ NULL, /* base_init */
+ NULL, /* base_finalize */
+ (GClassInitFunc) tracefile_state_class_init, /* class_init */
+ NULL, /* class_finalize */
+ NULL, /* class_data */
+ sizeof (LttvTracefileState),
+ 0, /* n_preallocs */
+ (GInstanceInitFunc) tracefile_state_instance_init /* instance_init */
+ };
+
+ type = g_type_register_static (LTTV_TRACEFILE_CONTEXT_TYPE,
+ "LttvTracefileStateType", &info, 0);
+ }
+ return type;
+}
+
+
+void lttv_state_init(int argc, char **argv)
+{
+ LTTV_STATE_UNNAMED = g_quark_from_string("unnamed");
+ LTTV_STATE_MODE_UNKNOWN = g_quark_from_string("unknown execution mode");
+ LTTV_STATE_USER_MODE = g_quark_from_string("user mode");
+ LTTV_STATE_WAIT_FORK = g_quark_from_string("wait fork");
+ LTTV_STATE_SYSCALL = g_quark_from_string("system call");
+ LTTV_STATE_TRAP = g_quark_from_string("trap");
+ LTTV_STATE_IRQ = g_quark_from_string("irq");
+ LTTV_STATE_SUBMODE_UNKNOWN = g_quark_from_string("unknown submode");
+ LTTV_STATE_SUBMODE_NONE = g_quark_from_string("(no submode)");
+ LTTV_STATE_WAIT_CPU = g_quark_from_string("wait for cpu");
+ LTTV_STATE_EXIT = g_quark_from_string("exiting");
+ LTTV_STATE_WAIT = g_quark_from_string("wait for I/O");
+ LTTV_STATE_RUN = g_quark_from_string("running");
+ LTTV_STATE_TRACEFILES = g_quark_from_string("tracefiles");
+ LTTV_STATE_PROCESSES = g_quark_from_string("processes");
+ LTTV_STATE_PROCESS = g_quark_from_string("process");
+ LTTV_STATE_EVENT = g_quark_from_string("event");
+ LTTV_STATE_SAVED_STATES = g_quark_from_string("saved states");
+ LTTV_STATE_TIME = g_quark_from_string("time");
+ LTTV_STATE_HOOKS = g_quark_from_string("saved state hooks");
+}
+
+void lttv_state_destroy()
+{
+}
+
+
+
+
projects / lttv.git / blobdiff