X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;ds=sidebyside;f=ltt%2Fbranches%2Fpoly%2Flttv%2Flttv%2Fstate.c;h=95d6a5a50df8b2397bcc5179fb2fbce22486d866;hb=9d239bd92ef3198e80333c703f3ab8ff8cdaeaf7;hp=e96247403559b6455ce010745ecbcc9db9f5500d;hpb=0828099d440cd8d5a4833760ee8b1e43cf090ce2;p=lttv.git diff --git a/ltt/branches/poly/lttv/lttv/state.c b/ltt/branches/poly/lttv/lttv/state.c index e9624740..95d6a5a5 100644 --- a/ltt/branches/poly/lttv/lttv/state.c +++ b/ltt/branches/poly/lttv/lttv/state.c @@ -16,6 +16,9 @@ * MA 02111-1307, USA. */ +#ifdef HAVE_CONFIG_H +#include +#endif #include #include @@ -26,6 +29,41 @@ #include #include +#define PREALLOCATED_EXECUTION_STACK 10 + +/* Facilities Quarks */ + +GQuark + LTT_FACILITY_KERNEL, + LTT_FACILITY_PROCESS; + +/* Events Quarks */ + +GQuark + LTT_EVENT_SYSCALL_ENTRY, + LTT_EVENT_SYSCALL_EXIT, + LTT_EVENT_TRAP_ENTRY, + LTT_EVENT_TRAP_EXIT, + LTT_EVENT_IRQ_ENTRY, + LTT_EVENT_IRQ_EXIT, + LTT_EVENT_SCHEDCHANGE, + LTT_EVENT_FORK, + LTT_EVENT_EXIT, + LTT_EVENT_FREE; + +/* Fields Quarks */ + +GQuark + LTT_FIELD_SYSCALL_ID, + LTT_FIELD_TRAP_ID, + LTT_FIELD_IRQ_ID, + LTT_FIELD_OUT, + LTT_FIELD_IN, + LTT_FIELD_OUT_STATE, + LTT_FIELD_PARENT_PID, + LTT_FIELD_CHILD_PID, + LTT_FIELD_PID; + LttvExecutionMode LTTV_STATE_MODE_UNKNOWN, LTTV_STATE_USER_MODE, @@ -41,6 +79,7 @@ LttvProcessStatus LTTV_STATE_UNNAMED, LTTV_STATE_WAIT_FORK, LTTV_STATE_WAIT_CPU, + LTTV_STATE_EXIT, LTTV_STATE_ZOMBIE, LTTV_STATE_WAIT, LTTV_STATE_RUN; @@ -57,7 +96,6 @@ static GQuark LTTV_STATE_NAME_TABLES, LTTV_STATE_TRACE_STATE_USE_COUNT; - static void create_max_time(LttvTraceState *tcs); static void get_max_time(LttvTraceState *tcs); @@ -96,21 +134,26 @@ void lttv_state_state_saved_free(LttvTraceState *self, guint process_hash(gconstpointer key) { - return ((const LttvProcessState *)key)->pid; + guint pid = ((const LttvProcessState *)key)->pid; + return (pid>>8 ^ pid>>4 ^ pid>>2 ^ pid) ; } +/* If the hash table hash function is well distributed, + * the process_equal should compare different pid */ gboolean process_equal(gconstpointer a, gconstpointer b) { const LttvProcessState *process_a, *process_b; - + gboolean ret = TRUE; + process_a = (const LttvProcessState *)a; process_b = (const LttvProcessState *)b; + + if(likely(process_a->pid != process_b->pid)) ret = FALSE; + else if(likely(process_a->pid == 0 && + process_a->last_cpu != process_b->last_cpu)) ret = FALSE; - if(process_a->pid != process_b->pid) return FALSE; - if(process_a->pid == 0 && - process_a->last_cpu != process_b->last_cpu) return FALSE; - return TRUE; + return ret; } @@ -125,16 +168,18 @@ restore_init_state(LttvTraceState *self) self->processes = g_hash_table_new(process_hash, process_equal); self->nb_event = 0; - nb_tracefile = ltt_trace_control_tracefile_number(self->parent.t) + - ltt_trace_per_cpu_tracefile_number(self->parent.t); + nb_tracefile = self->parent.tracefiles->len; for(i = 0 ; i < nb_tracefile ; i++) { - tfcs = LTTV_TRACEFILE_STATE(self->parent.tracefiles[i]); + tfcs = + LTTV_TRACEFILE_STATE(g_array_index(self->parent.tracefiles, + LttvTracefileContext*, i)); ltt_trace_time_span_get(self->parent.t, &tfcs->parent.timestamp, NULL); - tfcs->saved_position = 0; +// tfcs->saved_position = 0; tfcs->process = lttv_state_create_process(tfcs, NULL,0); tfcs->process->state->s = LTTV_STATE_RUN; tfcs->process->last_cpu = tfcs->cpu_name; + tfcs->process->last_cpu_index = ((LttvTracefileContext*)tfcs)->index; } } @@ -160,7 +205,7 @@ init(LttvTracesetState *self, LttvTraceset *ts) for(i = 0 ; i < nb_trace ; i++) { tc = self->parent.traces[i]; tcs = (LttvTraceState *)tc; - tcs->save_interval = 50000; + tcs->save_interval = LTTV_STATE_SAVE_INTERVAL; lttv_attribute_find(tcs->parent.t_a, LTTV_STATE_TRACE_STATE_USE_COUNT, LTTV_UINT, &v); (*v.v_uint)++; @@ -172,12 +217,13 @@ init(LttvTracesetState *self, LttvTraceset *ts) get_name_tables(tcs); get_max_time(tcs); - nb_tracefile = ltt_trace_control_tracefile_number(tc->t) + - ltt_trace_per_cpu_tracefile_number(tc->t); + nb_tracefile = tc->tracefiles->len; for(j = 0 ; j < nb_tracefile ; j++) { - tfcs = LTTV_TRACEFILE_STATE(tc->tracefiles[j]); - tfcs->cpu_name= g_quark_from_string(ltt_tracefile_name(tfcs->parent.tf)); + tfcs = + LTTV_TRACEFILE_STATE(g_array_index(tc->tracefiles, + LttvTracefileContext*, j)); + tfcs->cpu_name = ltt_tracefile_name(tfcs->parent.tf); } tcs->processes = NULL; restore_init_state(tcs); @@ -273,7 +319,8 @@ static void write_process_state(gpointer key, gpointer value, void lttv_state_write(LttvTraceState *self, LttTime t, FILE *fp) { - guint i, nb_tracefile, nb_block, nb_event; + guint i, nb_tracefile, nb_block, offset; + guint64 tsc; LttvTracefileState *tfcs; @@ -287,19 +334,22 @@ void lttv_state_write(LttvTraceState *self, LttTime t, FILE *fp) g_hash_table_foreach(self->processes, write_process_state, fp); - nb_tracefile = ltt_trace_control_tracefile_number(self->parent.t) + - ltt_trace_per_cpu_tracefile_number(self->parent.t); + nb_tracefile = self->parent.tracefiles->len; for(i = 0 ; i < nb_tracefile ; i++) { - tfcs = (LttvTracefileState *)self->parent.tracefiles[i]; + tfcs = + LTTV_TRACEFILE_STATE(g_array_index(self->parent.tracefiles, + LttvTracefileContext*, i)); fprintf(fp, " process->pid, tfcs->parent.timestamp.tv_sec, tfcs->parent.timestamp.tv_nsec); - if(tfcs->parent.e == NULL) fprintf(fp,"/>\n"); + LttEvent *e = ltt_tracefile_get_event(tfcs->parent.tf); + if(e == NULL) fprintf(fp,"/>\n"); else { - ltt_event_position(tfcs->parent.e, ep); - ltt_event_position_get(ep, &nb_block, &nb_event, &tf); - fprintf(fp, " BLOCK=%u EVENT=%u/>\n", nb_block, nb_event); + ltt_event_position(e, ep); + ltt_event_position_get(ep, &tf, &nb_block, &offset, &tsc); + fprintf(fp, " BLOCK=%u OFFSET=%u TSC=%llu/>\n", nb_block, offset, + tsc); } } g_free(ep); @@ -320,8 +370,8 @@ static void copy_process_state(gpointer key, gpointer value,gpointer user_data) process = (LttvProcessState *)value; new_process = g_new(LttvProcessState, 1); *new_process = *process; - new_process->execution_stack = g_array_new(FALSE, FALSE, - sizeof(LttvExecutionState)); + new_process->execution_stack = g_array_sized_new(FALSE, FALSE, + sizeof(LttvExecutionState), PREALLOCATED_EXECUTION_STACK); 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) = @@ -371,11 +421,12 @@ static void state_save(LttvTraceState *self, LttvAttribute *container) LTTV_POINTER); *(value.v_pointer) = lttv_state_copy_process_table(self->processes); - nb_tracefile = ltt_trace_control_tracefile_number(self->parent.t) + - ltt_trace_per_cpu_tracefile_number(self->parent.t); + nb_tracefile = self->parent.tracefiles->len; for(i = 0 ; i < nb_tracefile ; i++) { - tfcs = (LttvTracefileState *)self->parent.tracefiles[i]; + tfcs = + LTTV_TRACEFILE_STATE(g_array_index(self->parent.tracefiles, + LttvTracefileContext*, i)); tracefile_tree = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL); value = lttv_attribute_add(tracefiles_tree, i, LTTV_GOBJECT); @@ -385,16 +436,19 @@ static void state_save(LttvTraceState *self, LttvAttribute *container) *(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; + LttEvent *e = ltt_tracefile_get_event(tfcs->parent.tf); + if(e == NULL) *(value.v_pointer) = NULL; else { ep = ltt_event_position_new(); - ltt_event_position(tfcs->parent.e, ep); + ltt_event_position(e, ep); *(value.v_pointer) = ep; - guint nb_block, nb_event; + guint nb_block, offset; + guint64 tsc; LttTracefile *tf; - ltt_event_position_get(ep, &nb_block, &nb_event, &tf); - g_debug("Block %u event %u time %lu.%lu", nb_block, nb_event, + ltt_event_position_get(ep, &tf, &nb_block, &offset, &tsc); + g_debug("Block %u offset %u tsc %llu time %lu.%lu", nb_block, offset, + tsc, tfcs->parent.timestamp.tv_sec, tfcs->parent.timestamp.tv_nsec); } } @@ -417,6 +471,8 @@ static void state_restore(LttvTraceState *self, LttvAttribute *container) LttEventPosition *ep; + LttvTracesetContext *tsc = self->parent.ts_context; + tracefiles_tree = lttv_attribute_find_subdir(container, LTTV_STATE_TRACEFILES); @@ -426,11 +482,12 @@ static void state_restore(LttvTraceState *self, LttvAttribute *container) lttv_state_free_process_table(self->processes); self->processes = lttv_state_copy_process_table(*(value.v_pointer)); - nb_tracefile = ltt_trace_control_tracefile_number(self->parent.t) + - ltt_trace_per_cpu_tracefile_number(self->parent.t); + nb_tracefile = self->parent.tracefiles->len; for(i = 0 ; i < nb_tracefile ; i++) { - tfcs = (LttvTracefileState *)self->parent.tracefiles[i]; + tfcs = + LTTV_TRACEFILE_STATE(g_array_index(self->parent.tracefiles, + LttvTracefileContext*, i)); type = lttv_attribute_get(tracefiles_tree, i, &name, &value); g_assert(type == LTTV_GOBJECT); tracefile_tree = *((LttvAttribute **)(value.v_gobject)); @@ -444,12 +501,18 @@ static void state_restore(LttvTraceState *self, LttvAttribute *container) 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); - g_assert(tfcs->parent.t_context != NULL); - lttv_process_tracefile_seek_position(LTTV_TRACEFILE_CONTEXT(tfcs), ep); - } + g_assert(*(value.v_pointer) != NULL); + ep = *(value.v_pointer); + g_assert(tfcs->parent.t_context != NULL); + + g_tree_destroy(tsc->pqueue); + tsc->pqueue = g_tree_new(compare_tracefile); + + LttvTracefileContext *tfc = LTTV_TRACEFILE_CONTEXT(tfcs); + + g_assert(ltt_tracefile_seek_position(tfc->tf, ep) == 0); + tfc->timestamp = ltt_event_time(ltt_tracefile_get_event(tfc->tf)); + g_tree_insert(tsc->pqueue, tfc, tfc); } } @@ -482,11 +545,12 @@ static void state_saved_free(LttvTraceState *self, LttvAttribute *container) *(value.v_pointer) = NULL; lttv_attribute_remove_by_name(container, LTTV_STATE_PROCESSES); - nb_tracefile = ltt_trace_control_tracefile_number(self->parent.t) + - ltt_trace_per_cpu_tracefile_number(self->parent.t); + nb_tracefile = self->parent.tracefiles->len; for(i = 0 ; i < nb_tracefile ; i++) { - tfcs = (LttvTracefileState *)self->parent.tracefiles[i]; + tfcs = + LTTV_TRACEFILE_STATE(g_array_index(self->parent.tracefiles, + LttvTracefileContext*, i)); type = lttv_attribute_get(tracefiles_tree, i, &name, &value); g_assert(type == LTTV_GOBJECT); tracefile_tree = *((LttvAttribute **)(value.v_gobject)); @@ -564,7 +628,7 @@ free_max_time(LttvTraceState *tcs) typedef struct _LttvNameTables { - GQuark *eventtype_names; + // FIXME GQuark *eventtype_names; GQuark *syscall_names; GQuark *trap_names; GQuark *irq_names; @@ -576,9 +640,11 @@ create_name_tables(LttvTraceState *tcs) { int i, nb; - char *f_name, *e_name; + GQuark f_name, e_name; - LttvTraceHook h; + LttvTraceHook *h; + + LttvTraceHookByFacility *thf; LttEventType *et; @@ -594,7 +660,8 @@ create_name_tables(LttvTraceState *tcs) LTTV_POINTER, &v); g_assert(*(v.v_pointer) == NULL); *(v.v_pointer) = name_tables; - +#if 0 // Use iteration over the facilities_by_name and then list all event + // types of each facility nb = ltt_trace_eventtype_number(tcs->parent.t); name_tables->eventtype_names = g_new(GQuark, nb); for(i = 0 ; i < nb ; i++) { @@ -604,13 +671,21 @@ create_name_tables(LttvTraceState *tcs) g_string_printf(fe_name, "%s.%s", f_name, e_name); name_tables->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); +#endif //0 + if(lttv_trace_find_hook(tcs->parent.t, + LTT_FACILITY_KERNEL, LTT_EVENT_SYSCALL_ENTRY, + LTT_FIELD_SYSCALL_ID, 0, 0, + NULL, h)) + return; + + thf = lttv_trace_hook_get_first(h); + + t = ltt_field_type(thf->f1); nb = ltt_type_element_number(t); + + lttv_trace_hook_destroy(h); - /* CHECK syscalls should be an emun but currently are not! + /* CHECK syscalls should be an enum but currently are not! name_tables->syscall_names = g_new(GQuark, nb); for(i = 0 ; i < nb ; i++) { @@ -625,11 +700,19 @@ create_name_tables(LttvTraceState *tcs) name_tables->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); + if(lttv_trace_find_hook(tcs->parent.t, LTT_FACILITY_KERNEL, + LTT_EVENT_TRAP_ENTRY, + LTT_FIELD_TRAP_ID, 0, 0, + NULL, h)) + return; + + thf = lttv_trace_hook_get_first(h); + + t = ltt_field_type(thf->f1); nb = ltt_type_element_number(t); + lttv_trace_hook_destroy(h); + /* name_tables->trap_names = g_new(GQuark, nb); for(i = 0 ; i < nb ; i++) { @@ -644,11 +727,19 @@ create_name_tables(LttvTraceState *tcs) name_tables->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); + if(lttv_trace_find_hook(tcs->parent.t, + LTT_FACILITY_KERNEL, LTT_EVENT_IRQ_ENTRY, + LTT_FIELD_IRQ_ID, 0, 0, + NULL, h)) + return; + + thf = lttv_trace_hook_get_first(h); + + t = ltt_field_type(thf->f1); nb = ltt_type_element_number(t); + lttv_trace_hook_destroy(h); + /* name_tables->irq_names = g_new(GQuark, nb); for(i = 0 ; i < nb ; i++) { @@ -677,7 +768,7 @@ get_name_tables(LttvTraceState *tcs) LTTV_POINTER, &v); g_assert(*(v.v_pointer) != NULL); name_tables = (LttvNameTables *)*(v.v_pointer); - tcs->eventtype_names = name_tables->eventtype_names; + //tcs->eventtype_names = name_tables->eventtype_names; tcs->syscall_names = name_tables->syscall_names; tcs->trap_names = name_tables->trap_names; tcs->irq_names = name_tables->irq_names; @@ -696,7 +787,7 @@ free_name_tables(LttvTraceState *tcs) name_tables = (LttvNameTables *)*(v.v_pointer); *(v.v_pointer) = NULL; - g_free(name_tables->eventtype_names); + // g_free(name_tables->eventtype_names); g_free(name_tables->syscall_names); g_free(name_tables->trap_names); g_free(name_tables->irq_names); @@ -775,7 +866,8 @@ lttv_state_create_process(LttvTracefileState *tfs, LttvProcessState *parent, process->pid = pid; process->last_cpu = tfs->cpu_name; - g_warning("Process %u, core %p", process->pid, process); + process->last_cpu_index = ((LttvTracefileContext*)tfs)->index; + g_info("Process %u, core %p", process->pid, process); g_hash_table_insert(tcs->processes, process, process); if(parent) { @@ -799,8 +891,9 @@ lttv_state_create_process(LttvTracefileState *tfs, LttvProcessState *parent, process->creation_time.tv_nsec); process->pid_time = g_quark_from_string(buffer); process->last_cpu = tfs->cpu_name; - process->execution_stack = g_array_new(FALSE, FALSE, - sizeof(LttvExecutionState)); + process->last_cpu_index = ((LttvTracefileContext*)tfs)->index; + process->execution_stack = g_array_sized_new(FALSE, FALSE, + sizeof(LttvExecutionState), PREALLOCATED_EXECUTION_STACK); g_array_set_size(process->execution_stack, 1); es = process->state = &g_array_index(process->execution_stack, LttvExecutionState, 0); @@ -833,7 +926,7 @@ lttv_state_find_process_or_create(LttvTracefileState *tfs, guint pid) { LttvProcessState *process = lttv_state_find_process(tfs, pid); - if(process == NULL) process = lttv_state_create_process(tfs, NULL, pid); + if(unlikely(process == NULL)) process = lttv_state_create_process(tfs, NULL, pid); return process; } @@ -873,14 +966,17 @@ static void lttv_state_free_process_table(GHashTable *processes) static gboolean syscall_entry(void *hook_data, void *call_data) { - LttField *f = ((LttvTraceHook *)hook_data)->f1; - LttvTracefileState *s = (LttvTracefileState *)call_data; + LttEvent *e = ltt_tracefile_get_event(s->parent.tf); + LttvTraceHookByFacility *thf = + lttv_trace_hook_get_fac((LttvTraceHook *)hook_data, + ltt_event_facility_id(e)); + LttField *f = thf->f1; LttvExecutionSubmode submode; submode = ((LttvTraceState *)(s->parent.t_context))->syscall_names[ - ltt_event_get_unsigned(s->parent.e, f)]; + ltt_event_get_unsigned(e, f)]; push_state(s, LTTV_STATE_SYSCALL, submode); return FALSE; } @@ -897,14 +993,17 @@ static gboolean syscall_exit(void *hook_data, void *call_data) static gboolean trap_entry(void *hook_data, void *call_data) { - LttField *f = ((LttvTraceHook *)hook_data)->f1; - LttvTracefileState *s = (LttvTracefileState *)call_data; + LttEvent *e = ltt_tracefile_get_event(s->parent.tf); + LttvTraceHookByFacility *thf = + lttv_trace_hook_get_fac((LttvTraceHook *)hook_data, + ltt_event_facility_id(e)); + LttField *f = thf->f1; LttvExecutionSubmode submode; submode = ((LttvTraceState *)(s->parent.t_context))->trap_names[ - ltt_event_get_unsigned(s->parent.e, f)]; + ltt_event_get_unsigned(e, f)]; push_state(s, LTTV_STATE_TRAP, submode); return FALSE; } @@ -921,14 +1020,22 @@ static gboolean trap_exit(void *hook_data, void *call_data) static gboolean irq_entry(void *hook_data, void *call_data) { - LttField *f = ((LttvTraceHook *)hook_data)->f1; - LttvTracefileState *s = (LttvTracefileState *)call_data; + 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 = + lttv_trace_hook_get_fac((LttvTraceHook *)hook_data, + ltt_event_facility_id(e)); + // g_assert(lttv_trace_hook_get_first((LttvTraceHook *)hook_data)->f1 != NULL); + g_assert(thf->f1 != NULL); + // g_assert(thf == lttv_trace_hook_get_first((LttvTraceHook *)hook_data)); + LttField *f = thf->f1; LttvExecutionSubmode submode; submode = ((LttvTraceState *)(s->parent.t_context))->irq_names[ - ltt_event_get_unsigned(s->parent.e, f)]; + ltt_event_get_unsigned(e, f)]; /* Do something with the info about being in user or system mode when int? */ push_state(s, LTTV_STATE_IRQ, submode); @@ -947,17 +1054,18 @@ static gboolean irq_exit(void *hook_data, void *call_data) static gboolean schedchange(void *hook_data, void *call_data) { - LttvTraceHook *h = (LttvTraceHook *)hook_data; - LttvTracefileState *s = (LttvTracefileState *)call_data; - + LttEvent *e = ltt_tracefile_get_event(s->parent.tf); + LttvTraceHookByFacility *thf = + lttv_trace_hook_get_fac((LttvTraceHook *)hook_data, + ltt_event_facility_id(e)); 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); + pid_out = ltt_event_get_unsigned(e, thf->f1); + pid_in = ltt_event_get_unsigned(e, thf->f2); + state_out = ltt_event_get_unsigned(e, thf->f3); - if(s->process != NULL) { + if(likely(s->process != NULL)) { /* We could not know but it was not the idle process executing. This should only happen at the beginning, before the first schedule @@ -965,12 +1073,14 @@ static gboolean schedchange(void *hook_data, void *call_data) is missing. It is not obvious how we could, after the fact, compensate the wrongly attributed statistics. */ - if(s->process->pid != pid_out) { + if(unlikely(s->process->pid != pid_out)) { g_assert(s->process->pid == 0); } - if(s->process->state->s != LTTV_STATE_ZOMBIE) { - if(state_out == 0) s->process->state->s = LTTV_STATE_WAIT_CPU; + if(unlikely(s->process->state->s == LTTV_STATE_EXIT)) { + s->process->state->s = LTTV_STATE_ZOMBIE; + } else { + if(unlikely(state_out == 0)) s->process->state->s = LTTV_STATE_WAIT_CPU; else s->process->state->s = LTTV_STATE_WAIT; } /* FIXME : we do not remove process here, because the kernel * still has them : they may be zombies. We need to know @@ -985,59 +1095,91 @@ static gboolean schedchange(void *hook_data, void *call_data) s->process = lttv_state_find_process_or_create(s, pid_in); s->process->state->s = LTTV_STATE_RUN; s->process->last_cpu = s->cpu_name; + s->process->last_cpu_index = ((LttvTracefileContext*)s)->index; s->process->state->change = s->parent.timestamp; return FALSE; } - -static gboolean process_fork(LttvTraceHook *trace_hook, LttvTracefileState *s) +static gboolean process_fork(void *hook_data, void *call_data) { + LttvTracefileState *s = (LttvTracefileState *)call_data; + LttEvent *e = ltt_tracefile_get_event(s->parent.tf); + LttvTraceHookByFacility *thf = + lttv_trace_hook_get_fac((LttvTraceHook *)hook_data, + ltt_event_facility_id(e)); LttField *f; + guint parent_pid; guint child_pid; LttvProcessState *zombie_process; + /* Parent PID */ + f = thf->f1; + parent_pid = ltt_event_get_unsigned(e, f); + /* Child PID */ - f = trace_hook->f2; - child_pid = ltt_event_get_unsigned(s->parent.e, f); + f = thf->f2; + child_pid = ltt_event_get_unsigned(e, f); zombie_process = lttv_state_find_process(s, child_pid); - if(zombie_process != NULL) { + if(unlikely(zombie_process != NULL)) { /* Reutilisation of PID. Only now we are sure that the old PID - * has been released. FIXME : sould know when release_task happens instead. + * has been released. FIXME : should know when release_task happens instead. */ exit_process(s, zombie_process); } + g_assert(s->process->pid != child_pid); + // FIXME : Add this test in the "known state" section + // g_assert(s->process->pid == parent_pid); lttv_state_create_process(s, s->process, child_pid); return FALSE; } -static gboolean process_exit(LttvTraceHook *trace_hook, LttvTracefileState *s) +static gboolean process_exit(void *hook_data, void *call_data) { - if(s->process != NULL) { - s->process->state->s = LTTV_STATE_ZOMBIE; + LttvTracefileState *s = (LttvTracefileState *)call_data; + LttEvent *e = ltt_tracefile_get_event(s->parent.tf); + LttvTraceHookByFacility *thf = + lttv_trace_hook_get_fac((LttvTraceHook *)hook_data, + ltt_event_facility_id(e)); + LttField *f; + guint pid; + + pid = ltt_event_get_unsigned(e, thf->f1); + + // FIXME : Add this test in the "known state" section + // g_assert(s->process->pid == pid); + + if(likely(s->process != NULL)) { + s->process->state->s = LTTV_STATE_EXIT; } return FALSE; } -gboolean process(void *hook_data, void *call_data) +static gboolean process_free(void *hook_data, void *call_data) { - LttvTraceHook *trace_hook = (LttvTraceHook *)hook_data; - LttField *f = trace_hook->f1; - LttvTracefileState *s = (LttvTracefileState *)call_data; - - guint sub_id = ltt_event_get_unsigned(s->parent.e, f); + LttEvent *e = ltt_tracefile_get_event(s->parent.tf); + LttvTraceHookByFacility *thf = + lttv_trace_hook_get_fac((LttvTraceHook *)hook_data, + ltt_event_facility_id(e)); + guint release_pid; + LttvProcessState *process; + + /* PID of the process to release */ + release_pid = ltt_event_get_unsigned(e, thf->f1); + + process = lttv_state_find_process(s, release_pid); - /* CHECK : do not hardcode the sub_id values here ? */ - if(sub_id == 2) { - return process_fork(trace_hook, s); - } else if(sub_id == 3) { - return process_exit(trace_hook, s); + if(likely(process != NULL)) { + /* release_task is happening at kernel level : we can now safely release + * the data structure of the process */ + exit_process(s, process); } - return 0; + + return FALSE; } gint lttv_state_hook_add_event_hooks(void *hook_data, void *call_data) @@ -1053,7 +1195,7 @@ void lttv_state_add_event_hooks(LttvTracesetState *self) { LttvTraceset *traceset = self->parent.ts; - guint i, j, k, nb_trace, nb_tracefile; + guint i, j, k, l, nb_trace, nb_tracefile; LttvTraceState *ts; @@ -1061,10 +1203,14 @@ void lttv_state_add_event_hooks(LttvTracesetState *self) GArray *hooks; - LttvTraceHook hook; + LttvTraceHookByFacility *thf; + + LttvTraceHook *hook; LttvAttributeValue val; + gint ret; + nb_trace = lttv_traceset_number(traceset); for(i = 0 ; i < nb_trace ; i++) { ts = (LttvTraceState *)self->parent.traces[i]; @@ -1072,53 +1218,89 @@ void lttv_state_add_event_hooks(LttvTracesetState *self) /* 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, 8); - - 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, + hooks = g_array_sized_new(FALSE, FALSE, sizeof(LttvTraceHook), 10); + g_array_set_size(hooks, 10); + + ret = lttv_trace_find_hook(ts->parent.t, + LTT_FACILITY_KERNEL, LTT_EVENT_SYSCALL_ENTRY, + LTT_FIELD_SYSCALL_ID, 0, 0, + syscall_entry, &g_array_index(hooks, LttvTraceHook, 0)); + g_assert(!ret); + + ret = lttv_trace_find_hook(ts->parent.t, + LTT_FACILITY_KERNEL, LTT_EVENT_SYSCALL_EXIT, + 0, 0, 0, + syscall_exit, &g_array_index(hooks, LttvTraceHook, 1)); + g_assert(!ret); + + ret = lttv_trace_find_hook(ts->parent.t, + LTT_FACILITY_KERNEL, LTT_EVENT_TRAP_ENTRY, + LTT_FIELD_TRAP_ID, 0, 0, + trap_entry, &g_array_index(hooks, LttvTraceHook, 2)); + g_assert(!ret); + + ret = lttv_trace_find_hook(ts->parent.t, + LTT_FACILITY_KERNEL, LTT_EVENT_TRAP_EXIT, + 0, 0, 0, trap_exit, &g_array_index(hooks, LttvTraceHook, 3)); + g_assert(!ret); - lttv_trace_find_hook(ts->parent.t, "core", "irq_entry", "irq_id", NULL, - NULL, irq_entry, &g_array_index(hooks, LttvTraceHook, 4)); + ret = lttv_trace_find_hook(ts->parent.t, + LTT_FACILITY_KERNEL, LTT_EVENT_IRQ_ENTRY, + LTT_FIELD_IRQ_ID, 0, 0, + irq_entry, &g_array_index(hooks, LttvTraceHook, 4)); + g_assert(!ret); - lttv_trace_find_hook(ts->parent.t, "core", "irq_exit", NULL, NULL, NULL, + ret = lttv_trace_find_hook(ts->parent.t, + LTT_FACILITY_KERNEL, LTT_EVENT_IRQ_EXIT, + 0, 0, 0, irq_exit, &g_array_index(hooks, LttvTraceHook, 5)); + g_assert(!ret); + + ret = lttv_trace_find_hook(ts->parent.t, + LTT_FACILITY_PROCESS, LTT_EVENT_SCHEDCHANGE, + LTT_FIELD_OUT, LTT_FIELD_IN, LTT_FIELD_OUT_STATE, + schedchange, &g_array_index(hooks, LttvTraceHook, 6)); + g_assert(!ret); + + ret = lttv_trace_find_hook(ts->parent.t, + LTT_FACILITY_PROCESS, LTT_EVENT_FORK, + LTT_FIELD_PARENT_PID, LTT_FIELD_CHILD_PID, 0, + process_fork, &g_array_index(hooks, LttvTraceHook, 7)); + g_assert(!ret); + + ret = lttv_trace_find_hook(ts->parent.t, + LTT_FACILITY_PROCESS, LTT_EVENT_EXIT, + LTT_FIELD_PID, 0, 0, + process_exit, &g_array_index(hooks, LttvTraceHook, 8)); + g_assert(!ret); + + ret = lttv_trace_find_hook(ts->parent.t, + LTT_FACILITY_PROCESS, LTT_EVENT_FREE, + LTT_FIELD_PID, 0, 0, + process_free, &g_array_index(hooks, LttvTraceHook, 9)); + g_assert(!ret); - 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", "event_sub_id", - "event_data1", "event_data2", process, - &g_array_index(hooks, LttvTraceHook, 7)); -#if 0 - 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)); -#endif //0 /* Add these hooks to each event_by_id hooks list */ - nb_tracefile = ltt_trace_control_tracefile_number(ts->parent.t) + - ltt_trace_per_cpu_tracefile_number(ts->parent.t); + nb_tracefile = ts->parent.tracefiles->len; for(j = 0 ; j < nb_tracefile ; j++) { - tfs = LTTV_TRACEFILE_STATE(ts->parent.tracefiles[j]); + tfs = + LTTV_TRACEFILE_STATE(g_array_index(ts->parent.tracefiles, + LttvTracefileContext*, j)); for(k = 0 ; k < hooks->len ; k++) { - hook = g_array_index(hooks, LttvTraceHook, k); - lttv_hooks_add(lttv_hooks_by_id_find(tfs->parent.event_by_id, - hook.id), hook.h, &g_array_index(hooks, LttvTraceHook, k), LTTV_PRIO_STATE); + hook = &g_array_index(hooks, LttvTraceHook, k); + for(l=0;lfac_list->len;l++) { + thf = g_array_index(hook->fac_list, LttvTraceHookByFacility*, l); + lttv_hooks_add( + lttv_hooks_by_id_find(tfs->parent.event_by_id, thf->id), + thf->h, + hook, + LTTV_PRIO_STATE); + } } } lttv_attribute_find(self->parent.a, LTTV_STATE_HOOKS, LTTV_POINTER, &val); @@ -1139,7 +1321,7 @@ void lttv_state_remove_event_hooks(LttvTracesetState *self) { LttvTraceset *traceset = self->parent.ts; - guint i, j, k, nb_trace, nb_tracefile; + guint i, j, k, l, nb_trace, nb_tracefile; LttvTraceState *ts; @@ -1147,7 +1329,9 @@ void lttv_state_remove_event_hooks(LttvTracesetState *self) GArray *hooks; - LttvTraceHook hook; + LttvTraceHook *hook; + + LttvTraceHookByFacility *thf; LttvAttributeValue val; @@ -1159,17 +1343,24 @@ void lttv_state_remove_event_hooks(LttvTracesetState *self) /* Remove these hooks from each event_by_id hooks list */ - nb_tracefile = ltt_trace_control_tracefile_number(ts->parent.t) + - ltt_trace_per_cpu_tracefile_number(ts->parent.t); + nb_tracefile = ts->parent.tracefiles->len; for(j = 0 ; j < nb_tracefile ; j++) { - tfs = LTTV_TRACEFILE_STATE(ts->parent.tracefiles[j]); + tfs = + LTTV_TRACEFILE_STATE(g_array_index(ts->parent.tracefiles, + LttvTracefileContext*, j)); 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.event_by_id, - hook.id), hook.h, &g_array_index(hooks, LttvTraceHook, k)); + hook = &g_array_index(hooks, LttvTraceHook, k); + for(l=0;lfac_list->len;l++) { + thf = g_array_index(hook->fac_list, LttvTraceHookByFacility*, l); + + lttv_hooks_remove_data( + lttv_hooks_by_id_find(tfs->parent.event_by_id, thf->id), + thf->h, + &g_array_index(hooks, LttvTraceHook, k)); + } + lttv_trace_hook_destroy(&g_array_index(hooks, LttvTraceHook, k)); } } g_array_free(hooks, TRUE); @@ -1177,6 +1368,50 @@ void lttv_state_remove_event_hooks(LttvTracesetState *self) } +static gboolean state_save_event_hook(void *hook_data, void *call_data) +{ + guint *event_count = (guint*)hook_data; + + /* Only save at LTTV_STATE_SAVE_INTERVAL */ + if(likely((*event_count)++ < LTTV_STATE_SAVE_INTERVAL)) + return FALSE; + else + event_count = 0; + + LttvTracefileState *self = (LttvTracefileState *)call_data; + + LttvTracefileState *tfcs; + + LttvTraceState *tcs = (LttvTraceState *)(self->parent.t_context); + + LttEventPosition *ep; + + guint i; + + LttTracefile *tf; + + LttvAttribute *saved_states_tree, *saved_state_tree; + + LttvAttributeValue value; + + 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) = self->parent.timestamp; + lttv_state_save(tcs, saved_state_tree); + g_debug("Saving state at time %lu.%lu", self->parent.timestamp.tv_sec, + self->parent.timestamp.tv_nsec); + + *(tcs->max_time_state_recomputed_in_seek) = self->parent.timestamp; + + return FALSE; +} + +#if 0 static gboolean block_start(void *hook_data, void *call_data) { LttvTracefileState *self = (LttvTracefileState *)call_data; @@ -1196,14 +1431,16 @@ static gboolean block_start(void *hook_data, void *call_data) LttvAttributeValue value; ep = ltt_event_position_new(); - nb_tracefile = ltt_trace_control_tracefile_number(tcs->parent.t) + - ltt_trace_per_cpu_tracefile_number(tcs->parent.t); + + nb_tracefile = tcs->parent.tracefiles->len; /* Count the number of events added since the last block end in any tracefile. */ for(i = 0 ; i < nb_tracefile ; i++) { - tfcs = (LttvTracefileState *)tcs->parent.tracefiles[i]; + tfcs = + LTTV_TRACEFILE_STATE(&g_array_index(tcs->parent.tracefiles, + LttvTracefileContext, i)); 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; @@ -1228,8 +1465,9 @@ static gboolean block_start(void *hook_data, void *call_data) *(tcs->max_time_state_recomputed_in_seek) = self->parent.timestamp; return FALSE; } +#endif //0 - +#if 0 static gboolean block_end(void *hook_data, void *call_data) { LttvTracefileState *self = (LttvTracefileState *)call_data; @@ -1252,8 +1490,8 @@ static gboolean block_end(void *hook_data, void *call_data) return FALSE; } - - +#endif //0 +#if 0 void lttv_state_save_add_event_hooks(LttvTracesetState *self) { LttvTraceset *traceset = self->parent.ts; @@ -1269,20 +1507,56 @@ void lttv_state_save_add_event_hooks(LttvTracesetState *self) 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_start",NULL, NULL, NULL, block_start, &hook_start); lttv_trace_find_hook(ts->parent.t, "core","block_end",NULL, NULL, NULL, block_end, &hook_end); - nb_tracefile = ltt_trace_control_tracefile_number(ts->parent.t) + - ltt_trace_per_cpu_tracefile_number(ts->parent.t); + nb_tracefile = ts->parent.tracefiles->len; for(j = 0 ; j < nb_tracefile ; j++) { - tfs = LTTV_TRACEFILE_STATE(ts->parent.tracefiles[j]); + tfs = + LTTV_TRACEFILE_STATE(&g_array_index(ts->parent.tracefiles, + LttvTracefileContext, j)); lttv_hooks_add(lttv_hooks_by_id_find(tfs->parent.event_by_id, - hook_start.id), hook_start.h, NULL, LTTV_PRIO_STATE); + hook_start.id), hook_start.h, NULL, LTTV_PRIO_STATE); lttv_hooks_add(lttv_hooks_by_id_find(tfs->parent.event_by_id, - hook_end.id), hook_end.h, NULL, LTTV_PRIO_STATE); + hook_end.id), hook_end.h, NULL, LTTV_PRIO_STATE); + } + } +} +#endif //0 + +void lttv_state_save_add_event_hooks(LttvTracesetState *self) +{ + LttvTraceset *traceset = self->parent.ts; + + guint i, j, nb_trace, nb_tracefile; + + LttvTraceState *ts; + + LttvTracefileState *tfs; + + + nb_trace = lttv_traceset_number(traceset); + for(i = 0 ; i < nb_trace ; i++) { + + ts = (LttvTraceState *)self->parent.traces[i]; + nb_tracefile = ts->parent.tracefiles->len; + + guint *event_count = g_new(guint, 1); + *event_count = 0; + + for(j = 0 ; j < nb_tracefile ; j++) { + tfs = + LTTV_TRACEFILE_STATE(g_array_index(ts->parent.tracefiles, + LttvTracefileContext*, j)); + lttv_hooks_add(tfs->parent.event, + state_save_event_hook, + event_count, + LTTV_PRIO_STATE); + } } } @@ -1297,6 +1571,7 @@ gint lttv_state_save_hook_add_event_hooks(void *hook_data, void *call_data) } +#if 0 void lttv_state_save_remove_event_hooks(LttvTracesetState *self) { LttvTraceset *traceset = self->parent.ts; @@ -1312,17 +1587,19 @@ void lttv_state_save_remove_event_hooks(LttvTracesetState *self) 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_start",NULL, NULL, NULL, block_start, &hook_start); lttv_trace_find_hook(ts->parent.t, "core","block_end",NULL, NULL, NULL, block_end, &hook_end); - nb_tracefile = ltt_trace_control_tracefile_number(ts->parent.t) + - ltt_trace_per_cpu_tracefile_number(ts->parent.t); + nb_tracefile = ts->parent.tracefiles->len; for(j = 0 ; j < nb_tracefile ; j++) { - tfs = LTTV_TRACEFILE_STATE(ts->parent.tracefiles[j]); + tfs = + LTTV_TRACEFILE_STATE(&g_array_index(ts->parent.tracefiles, + LttvTracefileContext, j)); lttv_hooks_remove_data(lttv_hooks_by_id_find( tfs->parent.event_by_id, hook_start.id), hook_start.h, NULL); lttv_hooks_remove_data(lttv_hooks_by_id_find( @@ -1330,6 +1607,38 @@ void lttv_state_save_remove_event_hooks(LttvTracesetState *self) } } } +#endif //0 + +void lttv_state_save_remove_event_hooks(LttvTracesetState *self) +{ + LttvTraceset *traceset = self->parent.ts; + + guint i, j, nb_trace, nb_tracefile; + + LttvTraceState *ts; + + LttvTracefileState *tfs; + + + nb_trace = lttv_traceset_number(traceset); + for(i = 0 ; i < nb_trace ; i++) { + + ts = (LttvTraceState *)self->parent.traces[i]; + nb_tracefile = ts->parent.tracefiles->len; + + guint *event_count; + + for(j = 0 ; j < nb_tracefile ; j++) { + tfs = + LTTV_TRACEFILE_STATE(g_array_index(ts->parent.tracefiles, + LttvTracefileContext*, j)); + event_count = lttv_hooks_remove(tfs->parent.event, + state_save_event_hook); + g_free(event_count); + + } + } +} gint lttv_state_save_hook_remove_event_hooks(void *hook_data, void *call_data) { @@ -1571,6 +1880,7 @@ static void module_init() 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_ZOMBIE = g_quark_from_string("zombie"); LTTV_STATE_WAIT = g_quark_from_string("wait for I/O"); LTTV_STATE_RUN = g_quark_from_string("running"); @@ -1585,6 +1895,34 @@ static void module_init() LTTV_STATE_NAME_TABLES = g_quark_from_string("name tables"); LTTV_STATE_TRACE_STATE_USE_COUNT = g_quark_from_string("trace_state_use_count"); + + + LTT_FACILITY_KERNEL = g_quark_from_string("kernel"); + LTT_FACILITY_PROCESS = g_quark_from_string("process"); + + + LTT_EVENT_SYSCALL_ENTRY = g_quark_from_string("syscall_entry"); + LTT_EVENT_SYSCALL_EXIT = g_quark_from_string("syscall_exit"); + LTT_EVENT_TRAP_ENTRY = g_quark_from_string("trap_entry"); + LTT_EVENT_TRAP_EXIT = g_quark_from_string("trap_exit"); + LTT_EVENT_IRQ_ENTRY = g_quark_from_string("irq_entry"); + LTT_EVENT_IRQ_EXIT = g_quark_from_string("irq_exit"); + LTT_EVENT_SCHEDCHANGE = g_quark_from_string("schedchange"); + LTT_EVENT_FORK = g_quark_from_string("fork"); + LTT_EVENT_EXIT = g_quark_from_string("exit"); + LTT_EVENT_FREE = g_quark_from_string("free"); + + + LTT_FIELD_SYSCALL_ID = g_quark_from_string("syscall_id"); + LTT_FIELD_TRAP_ID = g_quark_from_string("trap_id"); + LTT_FIELD_IRQ_ID = g_quark_from_string("irq_id"); + LTT_FIELD_OUT = g_quark_from_string("out"); + LTT_FIELD_IN = g_quark_from_string("in"); + LTT_FIELD_OUT_STATE = g_quark_from_string("out_state"); + LTT_FIELD_PARENT_PID = g_quark_from_string("parent_pid"); + LTT_FIELD_CHILD_PID = g_quark_from_string("child_pid"); + LTT_FIELD_PID = g_quark_from_string("pid"); + } static void module_destroy()