X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=ltt%2Fbranches%2Fpoly%2Flttv%2Flttv%2Fstate.c;h=18518e87f557fcb5636df6c17fdf9c6c65a3051d;hb=fecfcfdcae6306201df726be35f6c568468b3f3f;hp=6ee5e32e1dc9d04a7cdbfbb0ad521e53789dd8ff;hpb=e7f5e89d1b5a36b99c24b738f446923a72966b3c;p=lttv.git diff --git a/ltt/branches/poly/lttv/lttv/state.c b/ltt/branches/poly/lttv/lttv/state.c index 6ee5e32e..18518e87 100644 --- a/ltt/branches/poly/lttv/lttv/state.c +++ b/ltt/branches/poly/lttv/lttv/state.c @@ -35,7 +35,9 @@ GQuark LTT_FACILITY_KERNEL, - LTT_FACILITY_PROCESS; + LTT_FACILITY_KERNEL_ARCH, + LTT_FACILITY_PROCESS, + LTT_FACILITY_FS; /* Events Quarks */ @@ -46,10 +48,13 @@ GQuark LTT_EVENT_TRAP_EXIT, LTT_EVENT_IRQ_ENTRY, LTT_EVENT_IRQ_EXIT, + LTT_EVENT_SOFT_IRQ_ENTRY, + LTT_EVENT_SOFT_IRQ_EXIT, LTT_EVENT_SCHEDCHANGE, LTT_EVENT_FORK, LTT_EVENT_EXIT, - LTT_EVENT_FREE; + LTT_EVENT_FREE, + LTT_EVENT_EXEC; /* Fields Quarks */ @@ -57,19 +62,22 @@ GQuark LTT_FIELD_SYSCALL_ID, LTT_FIELD_TRAP_ID, LTT_FIELD_IRQ_ID, + LTT_FIELD_SOFT_IRQ_ID, LTT_FIELD_OUT, LTT_FIELD_IN, LTT_FIELD_OUT_STATE, LTT_FIELD_PARENT_PID, LTT_FIELD_CHILD_PID, - LTT_FIELD_PID; + LTT_FIELD_PID, + LTT_FIELD_FILENAME; LttvExecutionMode LTTV_STATE_MODE_UNKNOWN, LTTV_STATE_USER_MODE, LTTV_STATE_SYSCALL, LTTV_STATE_TRAP, - LTTV_STATE_IRQ; + LTTV_STATE_IRQ, + LTTV_STATE_SOFT_IRQ; LttvExecutionSubmode LTTV_STATE_SUBMODE_UNKNOWN, @@ -82,12 +90,14 @@ LttvProcessStatus LTTV_STATE_EXIT, LTTV_STATE_ZOMBIE, LTTV_STATE_WAIT, - LTTV_STATE_RUN; + LTTV_STATE_RUN, + LTTV_STATE_DEAD; static GQuark LTTV_STATE_TRACEFILES, LTTV_STATE_PROCESSES, LTTV_STATE_PROCESS, + LTTV_STATE_RUNNING_PROCESS, LTTV_STATE_EVENT, LTTV_STATE_SAVED_STATES, LTTV_STATE_SAVED_STATES_TIME, @@ -151,7 +161,7 @@ gboolean process_equal(gconstpointer a, gconstpointer 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; + process_a->cpu != process_b->cpu)) ret = FALSE; return ret; } @@ -160,14 +170,36 @@ gboolean process_equal(gconstpointer a, gconstpointer b) static void restore_init_state(LttvTraceState *self) { - guint i, nb_tracefile; + guint i, nb_cpus; LttvTracefileState *tfcs; + /* Free the process tables */ if(self->processes != NULL) lttv_state_free_process_table(self->processes); self->processes = g_hash_table_new(process_hash, process_equal); self->nb_event = 0; + /* Seek time to beginning */ + // Mathieu : fix : don't seek traceset here : causes inconsistency in seek + // closest. It's the tracecontext job to seek the trace to the beginning + // anyway : the init state might be used at the middle of the trace as well... + //g_tree_destroy(self->parent.ts_context->pqueue); + //self->parent.ts_context->pqueue = g_tree_new(compare_tracefile); + + + //lttv_process_trace_seek_time(&self->parent, ltt_time_zero); + + nb_cpus = ltt_trace_get_num_cpu(self->parent.t); + + /* Put the per cpu running_process to beginning state : process 0. */ + for(i=0; i< nb_cpus; i++) { + self->running_process[i] = lttv_state_create_process(self, NULL, i, 0, + <t_time_zero); + self->running_process[i]->state->s = LTTV_STATE_RUN; + self->running_process[i]->cpu = i; + } + +#if 0 nb_tracefile = self->parent.tracefiles->len; for(i = 0 ; i < nb_tracefile ; i++) { @@ -181,9 +213,10 @@ restore_init_state(LttvTraceState *self) tfcs->process->last_cpu = tfcs->cpu_name; tfcs->process->last_cpu_index = ltt_tracefile_num(((LttvTracefileContext*)tfcs)->tf); } +#endif //0 } -static LttTime time_zero = {0,0}; +//static LttTime time_zero = {0,0}; static void init(LttvTracesetState *self, LttvTraceset *ts) @@ -218,14 +251,17 @@ init(LttvTracesetState *self, LttvTraceset *ts) get_max_time(tcs); nb_tracefile = tc->tracefiles->len; - +#if 0 for(j = 0 ; j < nb_tracefile ; j++) { tfcs = LTTV_TRACEFILE_STATE(g_array_index(tc->tracefiles, LttvTracefileContext*, j)); - tfcs->cpu_name = ltt_tracefile_name(tfcs->parent.tf); + tfcs->tracefile_name = ltt_tracefile_name(tfcs->parent.tf); } +#endif //0 tcs->processes = NULL; + tcs->running_process = g_new(LttvProcessState*, + ltt_trace_get_num_cpu(tc->t)); restore_init_state(tcs); } } @@ -256,6 +292,8 @@ fini(LttvTracesetState *self) free_max_time(tcs); free_saved_state(tcs); } + g_free(tcs->running_process); + tcs->running_process = NULL; lttv_state_free_process_table(tcs->processes); tcs->processes = NULL; } @@ -300,10 +338,10 @@ static void write_process_state(gpointer key, gpointer value, process = (LttvProcessState *)value; fprintf(fp, -" \n", +" \n", process, process->pid, process->ppid, process->creation_time.tv_sec, process->creation_time.tv_nsec, g_quark_to_string(process->name), - g_quark_to_string(process->last_cpu)); + process->cpu); for(i = 0 ; i < process->execution_stack->len; i++) { es = &g_array_index(process->execution_stack, LttvExecutionState, i); @@ -328,11 +366,19 @@ void lttv_state_write(LttvTraceState *self, LttTime t, FILE *fp) LttEventPosition *ep; + guint nb_cpus; + ep = ltt_event_position_new(); fprintf(fp,"\n", t.tv_sec, t.tv_nsec); g_hash_table_foreach(self->processes, write_process_state, fp); + + nb_cpus = ltt_trace_get_num_cpu(self->parent.t); + for(i=0;i\n", + i, self->running_process[i]->pid); + } nb_tracefile = self->parent.tracefiles->len; @@ -340,8 +386,8 @@ void lttv_state_write(LttvTraceState *self, LttTime t, FILE *fp) tfcs = LTTV_TRACEFILE_STATE(g_array_index(self->parent.tracefiles, LttvTracefileContext*, i)); - fprintf(fp, " process->pid, tfcs->parent.timestamp.tv_sec, + fprintf(fp, " parent.timestamp.tv_sec, tfcs->parent.timestamp.tv_nsec); LttEvent *e = ltt_tracefile_get_event(tfcs->parent.tf); if(e == NULL) fprintf(fp,"/>\n"); @@ -402,11 +448,13 @@ static GHashTable *lttv_state_copy_process_table(GHashTable *processes) static void state_save(LttvTraceState *self, LttvAttribute *container) { - guint i, nb_tracefile; + guint i, nb_tracefile, nb_cpus; LttvTracefileState *tfcs; LttvAttribute *tracefiles_tree, *tracefile_tree; + + guint *running_process; LttvAttributeType type; @@ -423,6 +471,18 @@ static void state_save(LttvTraceState *self, LttvAttribute *container) LTTV_POINTER); *(value.v_pointer) = lttv_state_copy_process_table(self->processes); + /* Add the currently running processes array */ + nb_cpus = ltt_trace_get_num_cpu(self->parent.t); + running_process = g_new(guint, nb_cpus); + for(i=0;irunning_process[i]->pid; + } + value = lttv_attribute_add(container, LTTV_STATE_RUNNING_PROCESS, + LTTV_POINTER); + *(value.v_pointer) = running_process; + + g_info("State save"); + nb_tracefile = self->parent.tracefiles->len; for(i = 0 ; i < nb_tracefile ; i++) { @@ -433,13 +493,17 @@ static void state_save(LttvTraceState *self, LttvAttribute *container) value = lttv_attribute_add(tracefiles_tree, i, LTTV_GOBJECT); *(value.v_gobject) = (GObject *)tracefile_tree; +#if 0 value = lttv_attribute_add(tracefile_tree, LTTV_STATE_PROCESS, LTTV_UINT); *(value.v_uint) = tfcs->process->pid; +#endif //0 value = lttv_attribute_add(tracefile_tree, LTTV_STATE_EVENT, LTTV_POINTER); - /* Only save the position of the tfs is in the pqueue */ - if(!g_tree_lookup(self->parent.ts_context->pqueue, &tfcs->parent)) { + /* Only save the position if the tfs has not infinite time. */ + //if(!g_tree_lookup(self->parent.ts_context->pqueue, &tfcs->parent) + // && current_tfcs != tfcs) { + if(ltt_time_compare(tfcs->parent.timestamp, ltt_time_infinite) == 0) { *(value.v_pointer) = NULL; } else { LttEvent *e = ltt_tracefile_get_event(tfcs->parent.tf); @@ -451,7 +515,7 @@ static void state_save(LttvTraceState *self, LttvAttribute *container) guint64 tsc; LttTracefile *tf; ltt_event_position_get(ep, &tf, &nb_block, &offset, &tsc); - g_debug("Block %u offset %u tsc %llu time %lu.%lu", nb_block, offset, + g_info("Block %u offset %u tsc %llu time %lu.%lu", nb_block, offset, tsc, tfcs->parent.timestamp.tv_sec, tfcs->parent.timestamp.tv_nsec); } @@ -461,12 +525,14 @@ static void state_save(LttvTraceState *self, LttvAttribute *container) static void state_restore(LttvTraceState *self, LttvAttribute *container) { - guint i, nb_tracefile, pid; + guint i, nb_tracefile, pid, nb_cpus; LttvTracefileState *tfcs; LttvAttribute *tracefiles_tree, *tracefile_tree; + guint *running_process; + LttvAttributeType type; LttvAttributeValue value; @@ -486,10 +552,23 @@ 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)); + /* Add the currently running processes array */ + nb_cpus = ltt_trace_get_num_cpu(self->parent.t); + type = lttv_attribute_get_by_name(container, LTTV_STATE_RUNNING_PROCESS, + &value); + g_assert(type == LTTV_POINTER); + running_process = *(value.v_pointer); + for(i=0;irunning_process[i] = lttv_state_find_process(self, i, pid); + g_assert(self->running_process[i] != NULL); + } + + nb_tracefile = self->parent.tracefiles->len; - g_tree_destroy(tsc->pqueue); - tsc->pqueue = g_tree_new(compare_tracefile); + //g_tree_destroy(tsc->pqueue); + //tsc->pqueue = g_tree_new(compare_tracefile); for(i = 0 ; i < nb_tracefile ; i++) { tfcs = @@ -498,13 +577,13 @@ static void state_restore(LttvTraceState *self, LttvAttribute *container) type = lttv_attribute_get(tracefiles_tree, i, &name, &value); g_assert(type == LTTV_GOBJECT); tracefile_tree = *((LttvAttribute **)(value.v_gobject)); - +#if 0 type = lttv_attribute_get_by_name(tracefile_tree, LTTV_STATE_PROCESS, &value); g_assert(type == LTTV_UINT); pid = *(value.v_uint); tfcs->process = lttv_state_find_process_or_create(tfcs, pid); - +#endif //0 type = lttv_attribute_get_by_name(tracefile_tree, LTTV_STATE_EVENT, &value); g_assert(type == LTTV_POINTER); @@ -513,12 +592,14 @@ static void state_restore(LttvTraceState *self, LttvAttribute *container) g_assert(tfcs->parent.t_context != NULL); LttvTracefileContext *tfc = LTTV_TRACEFILE_CONTEXT(tfcs); + g_tree_remove(tsc->pqueue, tfc); if(ep != NULL) { g_assert(ltt_tracefile_seek_position(tfc->tf, ep) == 0); tfc->timestamp = ltt_event_time(ltt_tracefile_get_event(tfc->tf)); g_assert(ltt_time_compare(tfc->timestamp, ltt_time_infinite) != 0); g_tree_insert(tsc->pqueue, tfc, tfc); + g_info("Restoring state for a tf at time %lu.%lu", tfc->timestamp.tv_sec, tfc->timestamp.tv_nsec); } else { tfc->timestamp = ltt_time_infinite; } @@ -528,12 +609,14 @@ static void state_restore(LttvTraceState *self, LttvAttribute *container) static void state_saved_free(LttvTraceState *self, LttvAttribute *container) { - guint i, nb_tracefile; + guint i, nb_tracefile, nb_cpus; LttvTracefileState *tfcs; LttvAttribute *tracefiles_tree, *tracefile_tree; + guint *running_process; + LttvAttributeType type; LttvAttributeValue value; @@ -554,6 +637,14 @@ static void state_saved_free(LttvTraceState *self, LttvAttribute *container) *(value.v_pointer) = NULL; lttv_attribute_remove_by_name(container, LTTV_STATE_PROCESSES); + /* Free running processes array */ + nb_cpus = ltt_trace_get_num_cpu(self->parent.t); + type = lttv_attribute_get_by_name(container, LTTV_STATE_RUNNING_PROCESS, + &value); + g_assert(type == LTTV_POINTER); + running_process = *(value.v_pointer); + g_free(running_process); + nb_tracefile = self->parent.tracefiles->len; for(i = 0 ; i < nb_tracefile ; i++) { @@ -608,7 +699,7 @@ create_max_time(LttvTraceState *tcs) LTTV_POINTER, &v); g_assert(*(v.v_pointer) == NULL); *(v.v_pointer) = g_new(LttTime,1); - *((LttTime *)*(v.v_pointer)) = time_zero; + *((LttTime *)*(v.v_pointer)) = ltt_time_zero; } @@ -641,6 +732,7 @@ typedef struct _LttvNameTables { GQuark *syscall_names; GQuark *trap_names; GQuark *irq_names; + GQuark *soft_irq_names; } LttvNameTables; @@ -682,7 +774,7 @@ create_name_tables(LttvTraceState *tcs) } #endif //0 if(lttv_trace_find_hook(tcs->parent.t, - LTT_FACILITY_KERNEL, LTT_EVENT_SYSCALL_ENTRY, + LTT_FACILITY_KERNEL_ARCH, LTT_EVENT_SYSCALL_ENTRY, LTT_FIELD_SYSCALL_ID, 0, 0, NULL, NULL, &h)) return; @@ -694,20 +786,17 @@ create_name_tables(LttvTraceState *tcs) lttv_trace_hook_destroy(&h); - /* CHECK syscalls should be an enum but currently are not! name_tables->syscall_names = g_new(GQuark, nb); for(i = 0 ; i < nb ; i++) { - name_tables->syscall_names[i] = g_quark_from_string( - ltt_enum_string_get(t, i)); + name_tables->syscall_names[i] = ltt_enum_string_get(t, i); } - */ - name_tables->syscall_names = g_new(GQuark, 256); - for(i = 0 ; i < 256 ; i++) { - g_string_printf(fe_name, "syscall %d", i); - name_tables->syscall_names[i] = g_quark_from_string(fe_name->str); - } + //name_tables->syscall_names = g_new(GQuark, 256); + //for(i = 0 ; i < 256 ; i++) { + // g_string_printf(fe_name, "syscall %d", i); + // name_tables->syscall_names[i] = g_quark_from_string(fe_name->str); + //} if(lttv_trace_find_hook(tcs->parent.t, LTT_FACILITY_KERNEL, LTT_EVENT_TRAP_ENTRY, @@ -718,7 +807,7 @@ create_name_tables(LttvTraceState *tcs) thf = lttv_trace_hook_get_first(&h); t = ltt_field_type(thf->f1); - nb = ltt_type_element_number(t); + //nb = ltt_type_element_number(t); lttv_trace_hook_destroy(&h); @@ -745,7 +834,7 @@ create_name_tables(LttvTraceState *tcs) thf = lttv_trace_hook_get_first(&h); t = ltt_field_type(thf->f1); - nb = ltt_type_element_number(t); + //nb = ltt_type_element_number(t); lttv_trace_hook_destroy(&h); @@ -762,6 +851,20 @@ create_name_tables(LttvTraceState *tcs) name_tables->irq_names[i] = g_quark_from_string(fe_name->str); } + /* + name_tables->soft_irq_names = g_new(GQuark, nb); + for(i = 0 ; i < nb ; i++) { + name_tables->soft_irq_names[i] = g_quark_from_string(ltt_enum_string_get(t, i)); + } + */ + + name_tables->soft_irq_names = g_new(GQuark, 256); + for(i = 0 ; i < 256 ; i++) { + g_string_printf(fe_name, "softirq %d", i); + name_tables->soft_irq_names[i] = g_quark_from_string(fe_name->str); + } + + g_string_free(fe_name, TRUE); } @@ -781,6 +884,7 @@ get_name_tables(LttvTraceState *tcs) tcs->syscall_names = name_tables->syscall_names; tcs->trap_names = name_tables->trap_names; tcs->irq_names = name_tables->irq_names; + tcs->soft_irq_names = name_tables->soft_irq_names; } @@ -800,15 +904,41 @@ free_name_tables(LttvTraceState *tcs) g_free(name_tables->syscall_names); g_free(name_tables->trap_names); g_free(name_tables->irq_names); + g_free(name_tables->soft_irq_names); g_free(name_tables); } +#ifdef HASH_TABLE_DEBUG + +static void test_process(gpointer key, gpointer value, gpointer user_data) +{ + LttvProcessState *process = (LttvProcessState *)value; + + /* Test for process corruption */ + guint stack_len = process->execution_stack->len; +} + +static void hash_table_check(GHashTable *table) +{ + g_hash_table_foreach(table, test_process, NULL); +} + + +#endif + + static void push_state(LttvTracefileState *tfs, LttvExecutionMode t, guint state_id) { LttvExecutionState *es; + + guint cpu = ltt_tracefile_num(tfs->parent.tf); + LttvTraceState *ts = (LttvTraceState*)tfs->parent.t_context; - LttvProcessState *process = tfs->process; +#ifdef HASH_TABLE_DEBUG + hash_table_check(ts->processes); +#endif + LttvProcessState *process = ts->running_process[cpu]; guint depth = process->execution_stack->len; @@ -829,7 +959,9 @@ static void push_state(LttvTracefileState *tfs, LttvExecutionMode t, static void pop_state(LttvTracefileState *tfs, LttvExecutionMode t) { - LttvProcessState *process = tfs->process; + guint cpu = ltt_tracefile_num(tfs->parent.tf); + LttvTraceState *ts = (LttvTraceState*)tfs->parent.t_context; + LttvProcessState *process = ts->running_process[cpu]; guint depth = process->execution_stack->len; @@ -862,32 +994,28 @@ static void pop_state(LttvTracefileState *tfs, LttvExecutionMode t) LttvProcessState * -lttv_state_create_process(LttvTracefileState *tfs, LttvProcessState *parent, - guint pid) +lttv_state_create_process(LttvTraceState *tcs, LttvProcessState *parent, + guint cpu, guint pid, const LttTime *timestamp) { LttvProcessState *process = g_new(LttvProcessState, 1); LttvExecutionState *es; - LttvTraceContext *tc; - - LttvTraceState *tcs; + LttvTraceContext *tc = (LttvTraceContext*)tcs; char buffer[128]; - tc = tfs->parent.t_context; - tcs = (LttvTraceState *)tc; - process->pid = pid; - process->last_cpu = tfs->cpu_name; - process->last_cpu_index = ltt_tracefile_num(((LttvTracefileContext*)tfs)->tf); + process->cpu = cpu; + //process->last_cpu = tfs->cpu_name; + //process->last_cpu_index = ltt_tracefile_num(((LttvTracefileContext*)tfs)->tf); g_info("Process %u, core %p", process->pid, process); g_hash_table_insert(tcs->processes, process, process); if(parent) { process->ppid = parent->pid; process->name = parent->name; - process->creation_time = tfs->parent.timestamp; + process->creation_time = *timestamp; } /* No parent. This process exists but we are missing all information about @@ -900,47 +1028,58 @@ lttv_state_create_process(LttvTracefileState *tfs, LttvProcessState *parent, process->creation_time = ltt_time_zero; } - process->insertion_time = tfs->parent.timestamp; + process->insertion_time = *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->last_cpu = tfs->cpu_name; - process->last_cpu_index = ltt_tracefile_num(((LttvTracefileContext*)tfs)->tf); + process->cpu = cpu; + //process->last_cpu = tfs->cpu_name; + //process->last_cpu_index = ltt_tracefile_num(((LttvTracefileContext*)tfs)->tf); process->execution_stack = g_array_sized_new(FALSE, FALSE, sizeof(LttvExecutionState), PREALLOCATED_EXECUTION_STACK); - process->execution_stack = g_array_set_size(process->execution_stack, 1); + process->execution_stack = g_array_set_size(process->execution_stack, 2); 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; - g_assert(tfs->parent.timestamp.tv_sec != 0); - es->change = tfs->parent.timestamp; + es->entry = *timestamp; + //g_assert(timestamp->tv_sec != 0); + es->change = *timestamp; + es->s = LTTV_STATE_RUN; + + es = process->state = &g_array_index(process->execution_stack, + LttvExecutionState, 1); + es->t = LTTV_STATE_SYSCALL; + es->n = LTTV_STATE_SUBMODE_NONE; + es->entry = *timestamp; + //g_assert(timestamp->tv_sec != 0); + es->change = *timestamp; es->s = LTTV_STATE_WAIT_FORK; return process; } -LttvProcessState *lttv_state_find_process(LttvTracefileState *tfs, +LttvProcessState *lttv_state_find_process(LttvTraceState *ts, guint cpu, guint pid) { LttvProcessState key; LttvProcessState *process; - LttvTraceState* ts = (LttvTraceState*)tfs->parent.t_context; - key.pid = pid; - key.last_cpu = tfs->cpu_name; + key.cpu = cpu; process = g_hash_table_lookup(ts->processes, &key); return process; } LttvProcessState * -lttv_state_find_process_or_create(LttvTracefileState *tfs, guint pid) +lttv_state_find_process_or_create(LttvTraceState *ts, guint cpu, guint pid, + LttTime *timestamp) { - LttvProcessState *process = lttv_state_find_process(tfs, pid); - - if(unlikely(process == NULL)) process = lttv_state_create_process(tfs, NULL, pid); + LttvProcessState *process = lttv_state_find_process(ts, cpu, pid); + + /* Put ltt_time_zero creation time for unexisting processes */ + if(unlikely(process == NULL)) process = lttv_state_create_process(ts, + NULL, cpu, pid, timestamp); return process; } @@ -957,7 +1096,7 @@ static void exit_process(LttvTracefileState *tfs, LttvProcessState *process) LttvProcessState key; key.pid = process->pid; - key.last_cpu = process->last_cpu; + key.cpu = process->cpu; g_hash_table_remove(ts->processes, &key); g_array_free(process->execution_stack, TRUE); g_free(process); @@ -1059,10 +1198,45 @@ static gboolean irq_exit(void *hook_data, void *call_data) return FALSE; } +static gboolean soft_irq_entry(void *hook_data, void *call_data) +{ + 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 = (LttvTraceHookByFacility *)hook_data; + // 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))->soft_irq_names[ + 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_SOFT_IRQ, submode); + return FALSE; +} + + +static gboolean soft_irq_exit(void *hook_data, void *call_data) +{ + LttvTracefileState *s = (LttvTracefileState *)call_data; + + pop_state(s, LTTV_STATE_SOFT_IRQ); + return FALSE; +} + static gboolean schedchange(void *hook_data, void *call_data) { LttvTracefileState *s = (LttvTracefileState *)call_data; + guint cpu = ltt_tracefile_num(s->parent.tf); + LttvTraceState *ts = (LttvTraceState*)s->parent.t_context; + LttvProcessState *process = ts->running_process[cpu]; + LttEvent *e = ltt_tracefile_get_event(s->parent.tf); LttvTraceHookByFacility *thf = (LttvTraceHookByFacility *)hook_data; guint pid_in, pid_out; @@ -1071,8 +1245,8 @@ static gboolean schedchange(void *hook_data, void *call_data) 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); - - if(likely(s->process != NULL)) { + + if(likely(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 @@ -1082,30 +1256,32 @@ static gboolean schedchange(void *hook_data, void *call_data) //This test only makes sense once the state is known and if there is no //missing events. - //if(unlikely(s->process->pid != pid_out)) { - // g_assert(s->process->pid == 0); + //if(unlikely(process->pid != pid_out)) { + // g_assert(process->pid == 0); //} - if(unlikely(s->process->state->s == LTTV_STATE_EXIT)) { - s->process->state->s = LTTV_STATE_ZOMBIE; + if(unlikely(process->state->s == LTTV_STATE_EXIT)) { + process->state->s = LTTV_STATE_ZOMBIE; + process->state->change = s->parent.timestamp; } 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 - * exactly when release_task is executed on the PID to - * know when the zombie is destroyed. - */ - //else - // exit_process(s, s->process); - - s->process->state->change = s->parent.timestamp; + if(unlikely(state_out == 0)) process->state->s = LTTV_STATE_WAIT_CPU; + else process->state->s = LTTV_STATE_WAIT; + process->state->change = s->parent.timestamp; + } + + if(state_out == 32) + exit_process(s, process); /* EXIT_DEAD */ + /* see sched.h for states */ } - 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 = ltt_tracefile_num(((LttvTracefileContext*)s)->tf); - s->process->state->change = s->parent.timestamp; + process = ts->running_process[cpu] = + lttv_state_find_process_or_create( + (LttvTraceState*)s->parent.t_context, + cpu, pid_in, + &s->parent.timestamp); + process->state->s = LTTV_STATE_RUN; + process->cpu = cpu; + // process->last_cpu_index = ltt_tracefile_num(((LttvTracefileContext*)s)->tf); + process->state->change = s->parent.timestamp; return FALSE; } @@ -1118,6 +1294,10 @@ static gboolean process_fork(void *hook_data, void *call_data) guint parent_pid; guint child_pid; LttvProcessState *zombie_process; + guint cpu = ltt_tracefile_num(s->parent.tf); + LttvTraceState *ts = (LttvTraceState*)s->parent.t_context; + LttvProcessState *process = ts->running_process[cpu]; + LttvProcessState *child_process; /* Parent PID */ f = thf->f1; @@ -1127,18 +1307,45 @@ static gboolean process_fork(void *hook_data, void *call_data) f = thf->f2; child_pid = ltt_event_get_unsigned(e, f); - zombie_process = lttv_state_find_process(s, child_pid); + /* Mathieu : it seems like the process might have been scheduled in before the + * fork, and, in a rare case, might be the current process. This might happen + * in a SMP case where we don't have enough precision on the clocks. + * + * Test reenabled after precision fixes on time. (Mathieu) */ +#if 0 + zombie_process = lttv_state_find_process(ts, ANY_CPU, child_pid); if(unlikely(zombie_process != NULL)) { /* Reutilisation of PID. Only now we are sure that the old PID * has been released. FIXME : should know when release_task happens instead. */ + guint num_cpus = ltt_trace_get_num_cpu(ts->parent.t); + guint i; + for(i=0; i< num_cpus; i++) { + g_assert(zombie_process != ts->running_process[i]); + } + exit_process(s, zombie_process); } - g_assert(s->process->pid != child_pid); +#endif //0 + g_assert(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); + // g_assert(process->pid == parent_pid); + child_process = lttv_state_find_process(ts, ANY_CPU, child_pid); + if(child_process == NULL) { + lttv_state_create_process(ts, process, cpu, + child_pid, &s->parent.timestamp); + } else { + /* The process has already been created : due to time imprecision between + * multiple CPUs : it has been scheduled in before creation. Note that we + * shouldn't have this kind of imprecision. + * + * Simply put a correct parent. + */ + g_assert(0); /* This is a problematic case : the process has been created + before the fork event */ + child_process->ppid = process->pid; + } return FALSE; } @@ -1151,14 +1358,17 @@ static gboolean process_exit(void *hook_data, void *call_data) LttvTraceHookByFacility *thf = (LttvTraceHookByFacility *)hook_data; LttField *f; guint pid; + guint cpu = ltt_tracefile_num(s->parent.tf); + LttvTraceState *ts = (LttvTraceState*)s->parent.t_context; + LttvProcessState *process = ts->running_process[cpu]; pid = ltt_event_get_unsigned(e, thf->f1); // FIXME : Add this test in the "known state" section - // g_assert(s->process->pid == pid); + // g_assert(process->pid == pid); - if(likely(s->process != NULL)) { - s->process->state->s = LTTV_STATE_EXIT; + if(likely(process != NULL)) { + process->state->s = LTTV_STATE_EXIT; } return FALSE; } @@ -1166,6 +1376,7 @@ static gboolean process_exit(void *hook_data, void *call_data) static gboolean process_free(void *hook_data, void *call_data) { LttvTracefileState *s = (LttvTracefileState *)call_data; + LttvTraceState *ts = (LttvTraceState*)s->parent.t_context; LttEvent *e = ltt_tracefile_get_event(s->parent.tf); LttvTraceHookByFacility *thf = (LttvTraceHookByFacility *)hook_data; guint release_pid; @@ -1173,18 +1384,69 @@ static gboolean process_free(void *hook_data, void *call_data) /* PID of the process to release */ release_pid = ltt_event_get_unsigned(e, thf->f1); + + g_assert(release_pid != 0); - process = lttv_state_find_process(s, release_pid); + process = lttv_state_find_process(ts, ANY_CPU, release_pid); 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); + //This test is fun, though, as it may happen that + //at time t : CPU 0 : process_free + //at time t+150ns : CPU 1 : schedule out + //Clearly due to time imprecision, we disable it. (Mathieu) + //If this weird case happen, we have no choice but to put the + //Currently running process on the cpu to 0. + //I re-enable it following time precision fixes. (Mathieu) + //Well, in the case where an process is freed by a process on another CPU + //and still scheduled, it happens that this is the schedchange that will + //drop the last reference count. Do not free it here! + guint num_cpus = ltt_trace_get_num_cpu(ts->parent.t); + guint i; + for(i=0; i< num_cpus; i++) { + //g_assert(process != ts->running_process[i]); + if(process == ts->running_process[i]) { + //ts->running_process[i] = lttv_state_find_process(ts, i, 0); + break; + } + } + if(i == num_cpus) /* process is not scheduled */ + exit_process(s, process); } return FALSE; } + +static gboolean process_exec(void *hook_data, void *call_data) +{ + LttvTracefileState *s = (LttvTracefileState *)call_data; + LttvTraceState *ts = (LttvTraceState*)s->parent.t_context; + LttEvent *e = ltt_tracefile_get_event(s->parent.tf); + LttvTraceHookByFacility *thf = (LttvTraceHookByFacility *)hook_data; + //gchar *name; + guint cpu = ltt_tracefile_num(s->parent.tf); + LttvProcessState *process = ts->running_process[cpu]; + + /* PID of the process to release */ + guint64 name_len = ltt_event_field_element_number(e, thf->f1); + //name = ltt_event_get_string(e, thf->f1); + LttField *child = ltt_event_field_element_select(e, thf->f1, 0); + gchar *name_begin = + (gchar*)(ltt_event_data(e)+ltt_event_field_offset(e, child)); + gchar *null_term_name = g_new(gchar, name_len+1); + memcpy(null_term_name, name_begin, name_len); + null_term_name[name_len] = '\0'; + + process->name = g_quark_from_string(null_term_name); + g_free(null_term_name); + return FALSE; +} + + + + gint lttv_state_hook_add_event_hooks(void *hook_data, void *call_data) { LttvTracesetState *tss = (LttvTracesetState*)(call_data); @@ -1221,17 +1483,17 @@ 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_sized_new(FALSE, FALSE, sizeof(LttvTraceHook), 10); - hooks = g_array_set_size(hooks, 10); + hooks = g_array_sized_new(FALSE, FALSE, sizeof(LttvTraceHook), 13); + hooks = g_array_set_size(hooks, 13); ret = lttv_trace_find_hook(ts->parent.t, - LTT_FACILITY_KERNEL, LTT_EVENT_SYSCALL_ENTRY, + LTT_FACILITY_KERNEL_ARCH, LTT_EVENT_SYSCALL_ENTRY, LTT_FIELD_SYSCALL_ID, 0, 0, syscall_entry, NULL, &g_array_index(hooks, LttvTraceHook, 0)); g_assert(!ret); ret = lttv_trace_find_hook(ts->parent.t, - LTT_FACILITY_KERNEL, LTT_EVENT_SYSCALL_EXIT, + LTT_FACILITY_KERNEL_ARCH, LTT_EVENT_SYSCALL_EXIT, 0, 0, 0, syscall_exit, NULL, &g_array_index(hooks, LttvTraceHook, 1)); g_assert(!ret); @@ -1260,30 +1522,49 @@ void lttv_state_add_event_hooks(LttvTracesetState *self) irq_exit, NULL, &g_array_index(hooks, LttvTraceHook, 5)); g_assert(!ret); + ret = lttv_trace_find_hook(ts->parent.t, + LTT_FACILITY_KERNEL, LTT_EVENT_SOFT_IRQ_ENTRY, + LTT_FIELD_SOFT_IRQ_ID, 0, 0, + soft_irq_entry, NULL, &g_array_index(hooks, LttvTraceHook, 6)); + g_assert(!ret); + + ret = lttv_trace_find_hook(ts->parent.t, + LTT_FACILITY_KERNEL, LTT_EVENT_SOFT_IRQ_EXIT, + 0, 0, 0, + soft_irq_exit, NULL, &g_array_index(hooks, LttvTraceHook, 7)); + 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, NULL, &g_array_index(hooks, LttvTraceHook, 6)); + schedchange, NULL, &g_array_index(hooks, LttvTraceHook, 8)); 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, NULL, &g_array_index(hooks, LttvTraceHook, 7)); + process_fork, NULL, &g_array_index(hooks, LttvTraceHook, 9)); g_assert(!ret); ret = lttv_trace_find_hook(ts->parent.t, LTT_FACILITY_PROCESS, LTT_EVENT_EXIT, LTT_FIELD_PID, 0, 0, - process_exit, NULL, &g_array_index(hooks, LttvTraceHook, 8)); + process_exit, NULL, &g_array_index(hooks, LttvTraceHook, 10)); g_assert(!ret); ret = lttv_trace_find_hook(ts->parent.t, LTT_FACILITY_PROCESS, LTT_EVENT_FREE, LTT_FIELD_PID, 0, 0, - process_free, NULL, &g_array_index(hooks, LttvTraceHook, 9)); + process_free, NULL, &g_array_index(hooks, LttvTraceHook, 11)); g_assert(!ret); + ret = lttv_trace_find_hook(ts->parent.t, + LTT_FACILITY_FS, LTT_EVENT_EXEC, + LTT_FIELD_FILENAME, 0, 0, + process_exec, NULL, &g_array_index(hooks, LttvTraceHook, 12)); + g_assert(!ret); + + /* Add these hooks to each event_by_id hooks list */ @@ -1371,7 +1652,6 @@ 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; @@ -1415,6 +1695,15 @@ static gboolean state_save_event_hook(void *hook_data, void *call_data) return FALSE; } +static gboolean state_save_after_trace_hook(void *hook_data, void *call_data) +{ + LttvTraceState *tcs = (LttvTraceState *)(call_data); + + *(tcs->max_time_state_recomputed_in_seek) = tcs->parent.time_span.end_time; + + return FALSE; +} + #if 0 static gboolean block_start(void *hook_data, void *call_data) { @@ -1549,9 +1838,10 @@ void lttv_state_save_add_event_hooks(LttvTracesetState *self) 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++) { - guint *event_count = g_new(guint, 1); - *event_count = 0; tfs = LTTV_TRACEFILE_STATE(g_array_index(ts->parent.tracefiles, LttvTracefileContext*, j)); @@ -1562,6 +1852,10 @@ void lttv_state_save_add_event_hooks(LttvTracesetState *self) } } + + lttv_process_traceset_begin(&self->parent, + NULL, NULL, NULL, NULL, NULL); + } gint lttv_state_save_hook_add_event_hooks(void *hook_data, void *call_data) @@ -1622,14 +1916,26 @@ void lttv_state_save_remove_event_hooks(LttvTracesetState *self) LttvTracefileState *tfs; + LttvHooks *after_trace = lttv_hooks_new(); + + lttv_hooks_add(after_trace, + state_save_after_trace_hook, + NULL, + LTTV_PRIO_STATE); + + + lttv_process_traceset_end(&self->parent, + NULL, after_trace, NULL, NULL, NULL); + lttv_hooks_destroy(after_trace); + 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; + guint *event_count = NULL; for(j = 0 ; j < nb_tracefile ; j++) { tfs = @@ -1637,9 +1943,8 @@ void lttv_state_save_remove_event_hooks(LttvTracesetState *self) LttvTracefileContext*, j)); event_count = lttv_hooks_remove(tfs->parent.event, state_save_event_hook); - g_free(event_count); - } + if(event_count) g_free(event_count); } } @@ -1660,6 +1965,8 @@ void lttv_state_traceset_seek_time_closest(LttvTracesetState *self, LttTime t) int min_pos, mid_pos, max_pos; + guint call_rest = 0; + LttvTraceState *tcs; LttvAttributeValue value; @@ -1670,6 +1977,11 @@ void lttv_state_traceset_seek_time_closest(LttvTracesetState *self, LttTime t) LttvAttribute *saved_states_tree, *saved_state_tree, *closest_tree; + //g_tree_destroy(self->parent.pqueue); + //self->parent.pqueue = g_tree_new(compare_tracefile); + + g_info("Entering seek_time_closest for time %lu.%lu", t.tv_sec, t.tv_nsec); + nb_trace = lttv_traceset_number(traceset); for(i = 0 ; i < nb_trace ; i++) { tcs = (LttvTraceState *)self->parent.traces[i]; @@ -1702,6 +2014,7 @@ void lttv_state_traceset_seek_time_closest(LttvTracesetState *self, LttTime t) /* restore the closest earlier saved state */ if(min_pos != -1) { lttv_state_restore(tcs, closest_tree); + call_rest = 1; } /* There is no saved state, yet we want to have it. Restart at T0 */ @@ -1716,6 +2029,7 @@ void lttv_state_traceset_seek_time_closest(LttvTracesetState *self, LttTime t) lttv_process_trace_seek_time(&(tcs->parent), t); } } + if(!call_rest) g_info("NOT Calling restore"); } @@ -1880,6 +2194,7 @@ static void module_init() 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_SOFT_IRQ = g_quark_from_string("softirq"); 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"); @@ -1887,9 +2202,11 @@ static void module_init() 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"); + LTTV_STATE_DEAD = g_quark_from_string("dead"); 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_RUNNING_PROCESS = g_quark_from_string("running_process"); LTTV_STATE_EVENT = g_quark_from_string("event"); LTTV_STATE_SAVED_STATES = g_quark_from_string("saved states"); LTTV_STATE_SAVED_STATES_TIME = g_quark_from_string("saved states time"); @@ -1901,7 +2218,9 @@ static void module_init() LTT_FACILITY_KERNEL = g_quark_from_string("kernel"); + LTT_FACILITY_KERNEL_ARCH = g_quark_from_string("kernel_arch"); LTT_FACILITY_PROCESS = g_quark_from_string("process"); + LTT_FACILITY_FS = g_quark_from_string("fs"); LTT_EVENT_SYSCALL_ENTRY = g_quark_from_string("syscall_entry"); @@ -1910,21 +2229,26 @@ static void module_init() 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_SOFT_IRQ_ENTRY = g_quark_from_string("soft_irq_entry"); + LTT_EVENT_SOFT_IRQ_EXIT = g_quark_from_string("soft_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_EVENT_EXEC = g_quark_from_string("exec"); 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_SOFT_IRQ_ID = g_quark_from_string("softirq_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"); + LTT_FIELD_FILENAME = g_quark_from_string("filename"); }