X-Git-Url: http://git.lttng.org/?a=blobdiff_plain;f=ltt%2Fbranches%2Fpoly%2Flttv%2Flttv%2Fstate.c;h=4858b21669c0ce556eaa4168d8883464957c24c5;hb=521a0efa430162f3b78b5cd569e730ed4c60bfc6;hp=05ea74f1d866993b9f7dd02a2d17c3a422aed4d4;hpb=83e160f2269f77a175b026a4b008a6dd18533d93;p=lttv.git diff --git a/ltt/branches/poly/lttv/lttv/state.c b/ltt/branches/poly/lttv/lttv/state.c index 05ea74f1..4858b216 100644 --- a/ltt/branches/poly/lttv/lttv/state.c +++ b/ltt/branches/poly/lttv/lttv/state.c @@ -30,6 +30,16 @@ #include #include +/* Comment : + * Mathieu Desnoyers + * usertrace is there only to be able to update the current CPU of the + * usertraces when there is a schedchange. it is a way to link the ProcessState + * to the associated usertrace. Link only created upon thread creation. + * + * The cpu id is necessary : it gives us back the current ProcessState when we + * are considering data from the usertrace. + */ + #define PREALLOCATED_EXECUTION_STACK 10 /* Facilities Quarks */ @@ -37,10 +47,10 @@ GQuark LTT_FACILITY_KERNEL, LTT_FACILITY_KERNEL_ARCH, - LTT_FACILITY_PROCESS, + LTT_FACILITY_LIST, LTT_FACILITY_FS, - LTT_FACILITY_STATEDUMP, - LTT_FACILITY_USER_GENERIC; + LTT_FACILITY_USER_GENERIC, + LTT_FACILITY_BLOCK; /* Events Quarks */ @@ -53,15 +63,19 @@ GQuark LTT_EVENT_IRQ_EXIT, LTT_EVENT_SOFT_IRQ_ENTRY, LTT_EVENT_SOFT_IRQ_EXIT, - LTT_EVENT_SCHEDCHANGE, - LTT_EVENT_FORK, - LTT_EVENT_KERNEL_THREAD, - LTT_EVENT_EXIT, - LTT_EVENT_FREE, + LTT_EVENT_SCHED_SCHEDULE, + LTT_EVENT_PROCESS_FORK, + LTT_EVENT_KTHREAD_CREATE, + LTT_EVENT_PROCESS_EXIT, + LTT_EVENT_PROCESS_FREE, LTT_EVENT_EXEC, - LTT_EVENT_ENUM_PROCESS_STATE, - LTT_EVENT_FUNCTION_ENTRY, - LTT_EVENT_FUNCTION_EXIT; + LTT_EVENT_PROCESS_STATE, + LTT_EVENT_STATEDUMP_END, + LTT_EVENT_FUNCTION_ENTRY, + LTT_EVENT_FUNCTION_EXIT, + LTT_EVENT_THREAD_BRAND, + LTT_EVENT_REQUEST_ISSUE, + LTT_EVENT_REQUEST_COMPLETE; /* Fields Quarks */ @@ -70,20 +84,25 @@ GQuark 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_PREV_PID, + LTT_FIELD_NEXT_PID, + LTT_FIELD_PREV_STATE, LTT_FIELD_PARENT_PID, LTT_FIELD_CHILD_PID, LTT_FIELD_PID, + LTT_FIELD_TGID, + LTT_FIELD_CHILD_TGID, LTT_FIELD_FILENAME, LTT_FIELD_NAME, LTT_FIELD_TYPE, LTT_FIELD_MODE, LTT_FIELD_SUBMODE, LTT_FIELD_STATUS, - LTT_FIELD_THIS_FN, - LTT_FIELD_CALL_SITE; + LTT_FIELD_THIS_FN, + LTT_FIELD_CALL_SITE, + LTT_FIELD_MINOR, + LTT_FIELD_MAJOR, + LTT_FIELD_OPERATION; LttvExecutionMode LTTV_STATE_MODE_UNKNOWN, @@ -107,9 +126,30 @@ LttvProcessStatus LTTV_STATE_RUN, LTTV_STATE_DEAD; +GQuark + LTTV_STATE_UNBRANDED; + LttvProcessType LTTV_STATE_USER_THREAD, - LTTV_STATE_KERNEL_THREAD; + LTTV_STATE_KERNEL_THREAD; + +LttvCPUMode + LTTV_CPU_UNKNOWN, + LTTV_CPU_IDLE, + LTTV_CPU_BUSY, + LTTV_CPU_IRQ, + LTTV_CPU_TRAP; + +LttvIRQMode + LTTV_IRQ_UNKNOWN, + LTTV_IRQ_IDLE, + LTTV_IRQ_BUSY; + +LttvBdevMode + LTTV_BDEV_UNKNOWN, + LTTV_BDEV_IDLE, + LTTV_BDEV_BUSY_READING, + LTTV_BDEV_BUSY_WRITING; static GQuark LTTV_STATE_TRACEFILES, @@ -122,7 +162,10 @@ static GQuark LTTV_STATE_TIME, LTTV_STATE_HOOKS, LTTV_STATE_NAME_TABLES, - LTTV_STATE_TRACE_STATE_USE_COUNT; + LTTV_STATE_TRACE_STATE_USE_COUNT, + LTTV_STATE_RESOURCE_CPUS, + LTTV_STATE_RESOURCE_IRQS, + LTTV_STATE_RESOURCE_BLKDEVS; static void create_max_time(LttvTraceState *tcs); @@ -140,6 +183,17 @@ static void free_saved_state(LttvTraceState *tcs); static void lttv_state_free_process_table(GHashTable *processes); +static void lttv_trace_states_read_raw(LttvTraceState *tcs, FILE *fp, + GPtrArray *quarktable); + +/* Resource function prototypes */ +static LttvBdevState *get_hashed_bdevstate(LttvTraceState *ts, guint16 devcode); +static LttvBdevState *bdevstate_new(void); +static void bdevstate_free(LttvBdevState *); +static void bdevstate_free_cb(gpointer key, gpointer value, gpointer user_data); +static LttvBdevState *bdevstate_copy(LttvBdevState *bds); +static LttvBdevState *bdev_state_get(LttvTraceState *ts, guint16 devcode); + void lttv_state_save(LttvTraceState *self, LttvAttribute *container) { @@ -186,13 +240,13 @@ gboolean process_equal(gconstpointer a, gconstpointer b) static void delete_usertrace(gpointer key, gpointer value, gpointer user_data) { - g_tree_destroy((GTree*)value); + g_tree_destroy((GTree*)value); } static void lttv_state_free_usertraces(GHashTable *usertraces) { - g_hash_table_foreach(usertraces, delete_usertrace, NULL); - g_hash_table_destroy(usertraces); + g_hash_table_foreach(usertraces, delete_usertrace, NULL); + g_hash_table_destroy(usertraces); } @@ -200,15 +254,17 @@ static void lttv_state_free_usertraces(GHashTable *usertraces) static void restore_init_state(LttvTraceState *self) { - guint i, nb_cpus; + guint i, nb_cpus, nb_irqs; LttvTracefileState *tfcs; + + LttTime start_time, end_time; /* Free the process tables */ if(self->processes != NULL) lttv_state_free_process_table(self->processes); - if(self->usertraces != NULL) lttv_state_free_usertraces(self->usertraces); + if(self->usertraces != NULL) lttv_state_free_usertraces(self->usertraces); self->processes = g_hash_table_new(process_hash, process_equal); - self->usertraces = g_hash_table_new(g_direct_hash, g_direct_equal); + self->usertraces = g_hash_table_new(g_direct_hash, g_direct_equal); self->nb_event = 0; /* Seek time to beginning */ @@ -218,18 +274,45 @@ restore_init_state(LttvTraceState *self) //g_tree_destroy(self->parent.ts_context->pqueue); //self->parent.ts_context->pqueue = g_tree_new(compare_tracefile); + ltt_trace_time_span_get(self->parent.t, &start_time, &end_time); //lttv_process_trace_seek_time(&self->parent, ltt_time_zero); nb_cpus = ltt_trace_get_num_cpu(self->parent.t); + nb_irqs = self->nb_irqs; /* 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, - LTTV_STATE_UNNAMED, <t_time_zero); - self->running_process[i]->state->s = LTTV_STATE_RUN; + LttvExecutionState *es; + self->running_process[i] = lttv_state_create_process(self, NULL, i, 0, 0, + LTTV_STATE_UNNAMED, &start_time); + /* We are not sure is it's a kernel thread or normal thread, put the + * bottom stack state to unknown */ + self->running_process[i]->execution_stack = + g_array_set_size(self->running_process[i]->execution_stack, 1); + es = self->running_process[i]->state = + &g_array_index(self->running_process[i]->execution_stack, + LttvExecutionState, 0); + es->t = LTTV_STATE_MODE_UNKNOWN; + es->s = LTTV_STATE_UNNAMED; + + //self->running_process[i]->state->s = LTTV_STATE_RUN; self->running_process[i]->cpu = i; + + /* reset cpu states */ + if(self->cpu_states[i].mode_stack->len > 0) + g_array_remove_range(self->cpu_states[i].mode_stack, 0, self->cpu_states[i].mode_stack->len); + } + + /* reset irq states */ + for(i=0; iirq_states[i].mode_stack->len > 0) + g_array_remove_range(self->irq_states[i].mode_stack, 0, self->irq_states[i].mode_stack->len); } + + /* reset bdev states */ + g_hash_table_foreach(self->bdev_states, bdevstate_free_cb, NULL); + g_hash_table_steal_all(self->bdev_states); #if 0 nb_tracefile = self->parent.tracefiles->len; @@ -251,23 +334,101 @@ restore_init_state(LttvTraceState *self) //static LttTime time_zero = {0,0}; static gint compare_usertraces(gconstpointer a, gconstpointer b, - gpointer user_data) + gpointer user_data) { - const LttTime *t1 = (const LttTime *)a; - const LttTime *t2 = (const LttTime *)b; + const LttTime *t1 = (const LttTime *)a; + const LttTime *t2 = (const LttTime *)b; - return ltt_time_compare(*t1, *t2); + return ltt_time_compare(*t1, *t2); } static void free_usertrace_key(gpointer data) { - g_free(data); + g_free(data); +} + +#define MAX_STRING_LEN 4096 + +static void +state_load_saved_states(LttvTraceState *tcs) +{ + FILE *fp; + GPtrArray *quarktable; + char *trace_path; + char path[PATH_MAX]; + guint count; + guint i; + tcs->has_precomputed_states = FALSE; + GQuark q; + gchar *string; + gint hdr; + gchar buf[MAX_STRING_LEN]; + guint len; + + trace_path = g_quark_to_string(ltt_trace_name(tcs->parent.t)); + strncpy(path, trace_path, PATH_MAX-1); + count = strnlen(trace_path, PATH_MAX-1); + // quarktable : open, test + strncat(path, "/precomputed/quarktable", PATH_MAX-count-1); + fp = fopen(path, "r"); + if(!fp) return; + quarktable = g_ptr_array_sized_new(4096); + + /* Index 0 is null */ + hdr = fgetc(fp); + if(hdr == EOF) return; + g_assert(hdr == HDR_QUARKS); + q = 1; + do { + hdr = fgetc(fp); + if(hdr == EOF) break; + g_assert(hdr == HDR_QUARK); + g_ptr_array_set_size(quarktable, q+1); + i=0; + while(1) { + fread(&buf[i], sizeof(gchar), 1, fp); + if(buf[i] == '\0' || feof(fp)) break; + i++; + } + len = strnlen(buf, MAX_STRING_LEN-1); + g_ptr_array_index (quarktable, q) = g_new(gchar, len+1); + strncpy(g_ptr_array_index (quarktable, q), buf, len+1); + q++; + } while(1); + + fclose(fp); + + // saved_states : open, test + strncpy(path, trace_path, PATH_MAX-1); + count = strnlen(trace_path, PATH_MAX-1); + strncat(path, "/precomputed/states", PATH_MAX-count-1); + fp = fopen(path, "r"); + if(!fp) return; + + hdr = fgetc(fp); + if(hdr != HDR_TRACE) goto end; + + lttv_trace_states_read_raw(tcs, fp, quarktable); + + tcs->has_precomputed_states = TRUE; + +end: + fclose(fp); + + /* Free the quarktable */ + for(i=0; ilen; i++) { + string = g_ptr_array_index (quarktable, i); + g_free(string); + } + g_ptr_array_free(quarktable, TRUE); + return; } static void init(LttvTracesetState *self, LttvTraceset *ts) { - guint i, j, nb_trace, nb_tracefile; + guint i, j, nb_trace, nb_tracefile, nb_cpu; + guint64 nb_irq; LttvTraceContext *tc; @@ -297,50 +458,57 @@ init(LttvTracesetState *self, LttvTraceset *ts) get_max_time(tcs); nb_tracefile = tc->tracefiles->len; + nb_cpu = ltt_trace_get_num_cpu(tc->t); + nb_irq = tcs->nb_irqs; tcs->processes = NULL; tcs->usertraces = NULL; - tcs->running_process = g_new(LttvProcessState*, - ltt_trace_get_num_cpu(tc->t)); + tcs->running_process = g_new(LttvProcessState*, nb_cpu); + + /* init cpu resource stuff */ + tcs->cpu_states = g_new(LttvCPUState, nb_cpu); + for(j = 0; jcpu_states[j].mode_stack = g_array_new(FALSE, FALSE, sizeof(LttvCPUMode)); + g_assert(tcs->cpu_states[j].mode_stack != NULL); + } + + /* init irq resource stuff */ + tcs->irq_states = g_new(LttvIRQState, nb_irq); + for(j = 0; jirq_states[j].mode_stack = g_array_new(FALSE, FALSE, sizeof(LttvIRQMode)); + g_assert(tcs->irq_states[j].mode_stack != NULL); + } + + /* init bdev resource stuff */ + tcs->bdev_states = g_hash_table_new(g_int_hash, g_int_equal); + restore_init_state(tcs); for(j = 0 ; j < nb_tracefile ; j++) { tfcs = LTTV_TRACEFILE_STATE(g_array_index(tc->tracefiles, LttvTracefileContext*, j)); tfcs->tracefile_name = ltt_tracefile_name(tfcs->parent.tf); - tfcs->cpu = ltt_tracefile_cpu(tfcs->parent.tf); -#if 0 - if(ltt_tracefile_tid(tfcs->parent.tf) != 0) { - /* It's a Usertrace */ - LttvProcessState *process; - LttTime timestamp = - ltt_interpolate_time_from_tsc(tfcs->parent.tf, - ltt_tracefile_creation(tfcs->parent.tf)); - process = lttv_state_find_process_or_create( - tcs, - 0, ltt_tracefile_tid(tfcs->parent.tf), - ×tamp); - process->usertrace = tfcs; - } - } -#endif //0 - if(ltt_tracefile_tid(tfcs->parent.tf) != 0) { - /* It's a Usertrace */ - guint tid = ltt_tracefile_tid(tfcs->parent.tf); - GTree *usertrace_tree = (GTree*)g_hash_table_lookup(tcs->usertraces, - (gconstpointer)tid); - if(!usertrace_tree) { - usertrace_tree = g_tree_new_full(compare_usertraces, - NULL, free_usertrace_key, NULL); - g_hash_table_insert(tcs->usertraces, - (gpointer)tid, usertrace_tree); - } - LttTime *timestamp = g_new(LttTime, 1); - *timestamp = ltt_interpolate_time_from_tsc(tfcs->parent.tf, - ltt_tracefile_creation(tfcs->parent.tf)); - g_tree_insert(usertrace_tree, timestamp, tfcs); - } + tfcs->cpu = ltt_tracefile_cpu(tfcs->parent.tf); + tfcs->cpu_state = &(tcs->cpu_states[tfcs->cpu]); + if(ltt_tracefile_tid(tfcs->parent.tf) != 0) { + /* It's a Usertrace */ + guint tid = ltt_tracefile_tid(tfcs->parent.tf); + GTree *usertrace_tree = (GTree*)g_hash_table_lookup(tcs->usertraces, + (gconstpointer)tid); + if(!usertrace_tree) { + usertrace_tree = g_tree_new_full(compare_usertraces, + NULL, free_usertrace_key, NULL); + g_hash_table_insert(tcs->usertraces, + (gpointer)tid, usertrace_tree); + } + LttTime *timestamp = g_new(LttTime, 1); + *timestamp = ltt_interpolate_time_from_tsc(tfcs->parent.tf, + ltt_tracefile_creation(tfcs->parent.tf)); + g_tree_insert(usertrace_tree, timestamp, tfcs); + } } + /* See if the trace has saved states */ + state_load_saved_states(tcs); } } @@ -372,7 +540,7 @@ fini(LttvTracesetState *self) g_free(tcs->running_process); tcs->running_process = NULL; lttv_state_free_process_table(tcs->processes); - lttv_state_free_usertraces(tcs->usertraces); + lttv_state_free_usertraces(tcs->usertraces); tcs->processes = NULL; tcs->usertraces = NULL; } @@ -414,23 +582,43 @@ static void write_process_state(gpointer key, gpointer value, FILE *fp = (FILE *)user_data; guint i; + guint64 address; process = (LttvProcessState *)value; fprintf(fp, -" \n", - process, process->pid, process->ppid, g_quark_to_string(process->type), - process->creation_time.tv_sec, - process->creation_time.tv_nsec, g_quark_to_string(process->name), +" \n", + process, process->pid, process->tgid, process->ppid, + g_quark_to_string(process->type), + process->creation_time.tv_sec, + process->creation_time.tv_nsec, + process->insertion_time.tv_sec, + process->insertion_time.tv_nsec, + g_quark_to_string(process->name), + g_quark_to_string(process->brand), process->cpu); for(i = 0 ; i < process->execution_stack->len; i++) { es = &g_array_index(process->execution_stack, LttvExecutionState, i); fprintf(fp, " t), g_quark_to_string(es->n), + g_quark_to_string(es->t), g_quark_to_string(es->n), es->entry.tv_sec, es->entry.tv_nsec); fprintf(fp, " CHANGE_S=%lu CHANGE_NS=%lu STATUS=\"%s\"/>\n", es->change.tv_sec, es->change.tv_nsec, g_quark_to_string(es->s)); } + + for(i = 0 ; i < process->user_stack->len; i++) { + address = &g_array_index(process->user_stack, guint64, i); + fprintf(fp, " \n", + address); + } + + if(process->usertrace) { + fprintf(fp, " ", + g_quark_to_string(process->usertrace->tracefile_name), + process->usertrace->cpu); + } + + fprintf(fp, " \n"); } @@ -456,7 +644,7 @@ void lttv_state_write(LttvTraceState *self, LttTime t, FILE *fp) nb_cpus = ltt_trace_get_num_cpu(self->parent.t); for(i=0;i\n", + fprintf(fp," \n", i, self->running_process[i]->pid); } @@ -479,9 +667,421 @@ void lttv_state_write(LttvTraceState *self, LttTime t, FILE *fp) } } g_free(ep); - fprintf(fp,""); + fprintf(fp,"\n"); +} + + +static void write_process_state_raw(gpointer key, gpointer value, + gpointer user_data) +{ + LttvProcessState *process; + + LttvExecutionState *es; + + FILE *fp = (FILE *)user_data; + + guint i; + guint64 address; + + process = (LttvProcessState *)value; + fputc(HDR_PROCESS, fp); + //fwrite(&header, sizeof(header), 1, fp); + //fprintf(fp, "%s", g_quark_to_string(process->type)); + //fputc('\0', fp); + fwrite(&process->type, sizeof(process->type), 1, fp); + //fprintf(fp, "%s", g_quark_to_string(process->name)); + //fputc('\0', fp); + fwrite(&process->name, sizeof(process->name), 1, fp); + //fprintf(fp, "%s", g_quark_to_string(process->brand)); + //fputc('\0', fp); + fwrite(&process->brand, sizeof(process->brand), 1, fp); + fwrite(&process->pid, sizeof(process->pid), 1, fp); + fwrite(&process->tgid, sizeof(process->tgid), 1, fp); + fwrite(&process->ppid, sizeof(process->ppid), 1, fp); + fwrite(&process->cpu, sizeof(process->cpu), 1, fp); + fwrite(&process->creation_time, sizeof(process->creation_time), 1, fp); + fwrite(&process->insertion_time, sizeof(process->insertion_time), 1, fp); + +#if 0 + fprintf(fp, +" \n", + process, process->pid, process->tgid, process->ppid, + g_quark_to_string(process->type), + process->creation_time.tv_sec, + process->creation_time.tv_nsec, + process->insertion_time.tv_sec, + process->insertion_time.tv_nsec, + g_quark_to_string(process->name), + g_quark_to_string(process->brand), + process->cpu); +#endif //0 + + for(i = 0 ; i < process->execution_stack->len; i++) { + es = &g_array_index(process->execution_stack, LttvExecutionState, i); + + fputc(HDR_ES, fp); + //fprintf(fp, "%s", g_quark_to_string(es->t)); + //fputc('\0', fp); + fwrite(&es->t, sizeof(es->t), 1, fp); + //fprintf(fp, "%s", g_quark_to_string(es->n)); + //fputc('\0', fp); + fwrite(&es->n, sizeof(es->n), 1, fp); + //fprintf(fp, "%s", g_quark_to_string(es->s)); + //fputc('\0', fp); + fwrite(&es->s, sizeof(es->s), 1, fp); + fwrite(&es->entry, sizeof(es->entry), 1, fp); + fwrite(&es->change, sizeof(es->change), 1, fp); + fwrite(&es->cum_cpu_time, sizeof(es->cum_cpu_time), 1, fp); +#if 0 + fprintf(fp, " t), g_quark_to_string(es->n), + es->entry.tv_sec, es->entry.tv_nsec); + fprintf(fp, " CHANGE_S=%lu CHANGE_NS=%lu STATUS=\"%s\"/>\n", + es->change.tv_sec, es->change.tv_nsec, g_quark_to_string(es->s)); +#endif //0 + } + + for(i = 0 ; i < process->user_stack->len; i++) { + address = &g_array_index(process->user_stack, guint64, i); + fputc(HDR_USER_STACK, fp); + fwrite(&address, sizeof(address), 1, fp); +#if 0 + fprintf(fp, " \n", + address); +#endif //0 + } + + if(process->usertrace) { + fputc(HDR_USERTRACE, fp); + //fprintf(fp, "%s", g_quark_to_string(process->usertrace->tracefile_name)); + //fputc('\0', fp); + fwrite(&process->usertrace->tracefile_name, + sizeof(process->usertrace->tracefile_name), 1, fp); + fwrite(&process->usertrace->cpu, sizeof(process->usertrace->cpu), 1, fp); +#if 0 + fprintf(fp, " ", + g_quark_to_string(process->usertrace->tracefile_name), + process->usertrace->cpu); +#endif //0 + } + +} + + +void lttv_state_write_raw(LttvTraceState *self, LttTime t, FILE *fp) +{ + guint i, nb_tracefile, nb_block, offset; + guint64 tsc; + + LttvTracefileState *tfcs; + + LttTracefile *tf; + + LttEventPosition *ep; + + guint nb_cpus; + + ep = ltt_event_position_new(); + + //fprintf(fp,"\n", t.tv_sec, t.tv_nsec); + fputc(HDR_PROCESS_STATE, fp); + fwrite(&t, sizeof(t), 1, fp); + + g_hash_table_foreach(self->processes, write_process_state_raw, fp); + + nb_cpus = ltt_trace_get_num_cpu(self->parent.t); + for(i=0;irunning_process[i]->pid, + sizeof(self->running_process[i]->pid), 1, fp); + //fprintf(fp," \n", + // i, self->running_process[i]->pid); + } + + nb_tracefile = self->parent.tracefiles->len; + + for(i = 0 ; i < nb_tracefile ; i++) { + tfcs = + LTTV_TRACEFILE_STATE(g_array_index(self->parent.tracefiles, + LttvTracefileContext*, i)); + // fprintf(fp, " parent.timestamp.tv_sec, + // tfcs->parent.timestamp.tv_nsec); + fputc(HDR_TRACEFILE, fp); + fwrite(&tfcs->parent.timestamp, sizeof(tfcs->parent.timestamp), 1, fp); + /* Note : if timestamp if LTT_TIME_INFINITE, there will be no + * position following : end of trace */ + LttEvent *e = ltt_tracefile_get_event(tfcs->parent.tf); + if(e != NULL) { + 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); + fwrite(&nb_block, sizeof(nb_block), 1, fp); + fwrite(&offset, sizeof(offset), 1, fp); + fwrite(&tsc, sizeof(tsc), 1, fp); + } + } + g_free(ep); +} + + +/* Read process state from a file */ + +/* Called because a HDR_PROCESS was found */ +static void read_process_state_raw(LttvTraceState *self, FILE *fp, + GPtrArray *quarktable) +{ + LttvExecutionState *es; + LttvProcessState *process, *parent_process; + LttvProcessState tmp; + GQuark tmpq; + + guint i; + guint64 *address; + guint cpu; + + /* TODO : check return value */ + fread(&tmp.type, sizeof(tmp.type), 1, fp); + fread(&tmp.name, sizeof(tmp.name), 1, fp); + fread(&tmp.brand, sizeof(tmp.brand), 1, fp); + fread(&tmp.pid, sizeof(tmp.pid), 1, fp); + fread(&tmp.tgid, sizeof(tmp.tgid), 1, fp); + fread(&tmp.ppid, sizeof(tmp.ppid), 1, fp); + fread(&tmp.cpu, sizeof(tmp.cpu), 1, fp); + fread(&tmp.creation_time, sizeof(tmp.creation_time), 1, fp); + fread(&tmp.insertion_time, sizeof(tmp.insertion_time), 1, fp); + + if(tmp.pid == 0) { + process = lttv_state_find_process(self, tmp.cpu, tmp.pid); + } else { + /* We must link to the parent */ + parent_process = lttv_state_find_process_or_create(self, ANY_CPU, tmp.ppid, + <t_time_zero); + process = lttv_state_find_process(self, ANY_CPU, tmp.pid); + if(process == NULL) { + process = lttv_state_create_process(self, parent_process, tmp.cpu, + tmp.pid, tmp.tgid, + g_quark_from_string((gchar*)g_ptr_array_index(quarktable, tmp.name)), + &tmp.creation_time); + } + } + process->insertion_time = tmp.insertion_time; + process->creation_time = tmp.creation_time; + process->type = g_quark_from_string( + (gchar*)g_ptr_array_index(quarktable, tmp.type)); + process->tgid = tmp.tgid; + process->ppid = tmp.ppid; + process->brand = g_quark_from_string( + (gchar*)g_ptr_array_index(quarktable, tmp.brand)); + process->name = + g_quark_from_string((gchar*)g_ptr_array_index(quarktable, tmp.name)); + + + do { + if(feof(fp) || ferror(fp)) goto end_loop; + + gint hdr = fgetc(fp); + if(hdr == EOF) goto end_loop; + + switch(hdr) { + case HDR_ES: + process->execution_stack = + g_array_set_size(process->execution_stack, + process->execution_stack->len + 1); + es = &g_array_index(process->execution_stack, LttvExecutionState, + process->execution_stack->len-1); + process->state = es; + + fread(&es->t, sizeof(es->t), 1, fp); + es->t = g_quark_from_string( + (gchar*)g_ptr_array_index(quarktable, es->t)); + fread(&es->n, sizeof(es->n), 1, fp); + es->n = g_quark_from_string( + (gchar*)g_ptr_array_index(quarktable, es->n)); + fread(&es->s, sizeof(es->s), 1, fp); + es->s = g_quark_from_string( + (gchar*)g_ptr_array_index(quarktable, es->s)); + fread(&es->entry, sizeof(es->entry), 1, fp); + fread(&es->change, sizeof(es->change), 1, fp); + fread(&es->cum_cpu_time, sizeof(es->cum_cpu_time), 1, fp); + break; + case HDR_USER_STACK: + process->user_stack = g_array_set_size(process->user_stack, + process->user_stack->len + 1); + address = &g_array_index(process->user_stack, guint64, + process->user_stack->len-1); + fread(address, sizeof(address), 1, fp); + process->current_function = *address; + break; + case HDR_USERTRACE: + fread(&tmpq, sizeof(tmpq), 1, fp); + fread(&process->usertrace->cpu, sizeof(process->usertrace->cpu), 1, fp); + break; + default: + ungetc(hdr, fp); + goto end_loop; + }; + } while(1); +end_loop: + return; +} + + +/* Called because a HDR_PROCESS_STATE was found */ +/* Append a saved state to the trace states */ +void lttv_state_read_raw(LttvTraceState *self, FILE *fp, GPtrArray *quarktable) +{ + guint i, nb_tracefile, nb_block, offset; + guint64 tsc; + LttvTracefileState *tfcs; + + LttEventPosition *ep; + + guint nb_cpus; + + int hdr; + + LttTime t; + + LttvAttribute *saved_states_tree, *saved_state_tree; + + LttvAttributeValue value; + GTree *pqueue = self->parent.ts_context->pqueue; + ep = ltt_event_position_new(); + + restore_init_state(self); + + fread(&t, sizeof(t), 1, fp); + + do { + if(feof(fp) || ferror(fp)) goto end_loop; + hdr = fgetc(fp); + if(hdr == EOF) goto end_loop; + + switch(hdr) { + case HDR_PROCESS: + /* Call read_process_state_raw */ + read_process_state_raw(self, fp, quarktable); + break; + case HDR_TRACEFILE: + case HDR_TRACESET: + case HDR_TRACE: + case HDR_QUARKS: + case HDR_QUARK: + case HDR_ES: + case HDR_USER_STACK: + case HDR_USERTRACE: + case HDR_PROCESS_STATE: + case HDR_CPU: + ungetc(hdr, fp); + goto end_loop; + break; + default: + g_error("Error while parsing saved state file : unknown data header %d", + hdr); + }; + } while(1); +end_loop: + + nb_cpus = ltt_trace_get_num_cpu(self->parent.t); + for(i=0;irunning_process[i]->pid, + sizeof(self->running_process[i]->pid), 1, fp); + } + + nb_tracefile = self->parent.tracefiles->len; + + for(i = 0 ; i < nb_tracefile ; i++) { + tfcs = + LTTV_TRACEFILE_STATE(g_array_index(self->parent.tracefiles, + LttvTracefileContext*, i)); + // fprintf(fp, " parent.timestamp.tv_sec, + // tfcs->parent.timestamp.tv_nsec); + g_tree_remove(pqueue, &tfcs->parent); + hdr = fgetc(fp); + g_assert(hdr == HDR_TRACEFILE); + fread(&tfcs->parent.timestamp, sizeof(tfcs->parent.timestamp), 1, fp); + /* Note : if timestamp if LTT_TIME_INFINITE, there will be no + * position following : end of trace */ + if(ltt_time_compare(tfcs->parent.timestamp, ltt_time_infinite) != 0) { + fread(&nb_block, sizeof(nb_block), 1, fp); + fread(&offset, sizeof(offset), 1, fp); + fread(&tsc, sizeof(tsc), 1, fp); + ltt_event_position_set(ep, tfcs->parent.tf, nb_block, offset, tsc); + gint ret = ltt_tracefile_seek_position(tfcs->parent.tf, ep); + g_assert(ret == 0); + g_tree_insert(pqueue, &tfcs->parent, &tfcs->parent); + } + } + g_free(ep); + + saved_states_tree = lttv_attribute_find_subdir(self->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) = t; + lttv_state_save(self, saved_state_tree); + g_debug("Saving state at time %lu.%lu", t.tv_sec, + t.tv_nsec); + + *(self->max_time_state_recomputed_in_seek) = t; + } +/* Called when a HDR_TRACE is found */ +void lttv_trace_states_read_raw(LttvTraceState *tcs, FILE *fp, + GPtrArray *quarktable) +{ + int hdr; + + do { + if(feof(fp) || ferror(fp)) goto end_loop; + hdr = fgetc(fp); + if(hdr == EOF) goto end_loop; + + switch(hdr) { + case HDR_PROCESS_STATE: + /* Call read_process_state_raw */ + lttv_state_read_raw(tcs, fp, quarktable); + break; + case HDR_TRACEFILE: + case HDR_TRACESET: + case HDR_TRACE: + case HDR_QUARKS: + case HDR_QUARK: + case HDR_ES: + case HDR_USER_STACK: + case HDR_USERTRACE: + case HDR_PROCESS: + case HDR_CPU: + g_error("Error while parsing saved state file :" + " unexpected data header %d", + hdr); + break; + default: + g_error("Error while parsing saved state file : unknown data header %d", + hdr); + }; + } while(1); +end_loop: + *(tcs->max_time_state_recomputed_in_seek) = tcs->parent.time_span.end_time; + restore_init_state(tcs); + lttv_process_trace_seek_time(tcs, ltt_time_zero); + return; +} + + /* Copy each process from an existing hash table to a new one */ @@ -529,6 +1129,143 @@ static GHashTable *lttv_state_copy_process_table(GHashTable *processes) return new_processes; } +static LttvCPUState *lttv_state_copy_cpu_states(LttvCPUState *states, guint n) +{ + guint i,j; + LttvCPUState *retval; + + retval = g_malloc(n*sizeof(LttvCPUState)); + + for(i=0; ilen); + for(j=0; jlen; j++) { + g_array_index(retval[i].mode_stack, GQuark, j) = g_array_index(states[i].mode_stack, GQuark, j); + } + } + + return retval; +} + +static void lttv_state_free_cpu_states(LttvCPUState *states, guint n) +{ + guint i; + + for(i=0; ilen); + for(j=0; jlen; j++) { + g_array_index(retval[i].mode_stack, GQuark, j) = g_array_index(states[i].mode_stack, GQuark, j); + } + } + + return retval; +} + +static void lttv_state_free_irq_states(LttvIRQState *states, guint n) +{ + guint i; + + for(i=0; ibdev_states, &devcode_gint); + if(bdev == NULL) { + LttvBdevState *bdevstate = g_malloc(sizeof(LttvBdevState)); + bdevstate->mode_stack = g_array_new(FALSE, FALSE, sizeof(GQuark)); + + gint * key = g_malloc(sizeof(gint)); + *key = devcode; + g_hash_table_insert(ts->bdev_states, key, bdevstate); + + bdev = bdevstate; + } + + return bdev; +} + +static LttvBdevState *bdevstate_new(void) +{ + LttvBdevState *retval; + retval = g_malloc(sizeof(LttvBdevState)); + retval->mode_stack = g_array_new(FALSE, FALSE, sizeof(GQuark)); +} + +static void bdevstate_free(LttvBdevState *bds) +{ + g_array_free(bds->mode_stack, FALSE); + g_free(bds); +} + +static void bdevstate_free_cb(gpointer key, gpointer value, gpointer user_data) +{ + LttvBdevState *bds = (LttvBdevState *) value; + + bdevstate_free(bds); +} + +static LttvBdevState *bdevstate_copy(LttvBdevState *bds) +{ + LttvBdevState *retval; + + retval = bdevstate_new(); + g_array_insert_vals(retval->mode_stack, 0, bds->mode_stack->data, bds->mode_stack->len); +} + +static void insert_and_copy_bdev_state(gpointer k, gpointer v, gpointer u) +{ + GHashTable *ht = (GHashTable *)u; + LttvBdevState *bds = (LttvBdevState *)v; + LttvBdevState *newbds; + + newbds = bdevstate_copy(v); + + g_hash_table_insert(u, k, newbds); +} + +static GHashTable *lttv_state_copy_blkdev_hashtable(GHashTable *ht) +{ + GHashTable *retval; + + retval = g_hash_table_new(g_int_hash, g_int_equal); + + g_hash_table_foreach(ht, insert_and_copy_bdev_state, retval); + + return retval; +} + +/* Free a hashtable and the LttvBdevState structures its values + * point to. */ + +static void lttv_state_free_blkdev_hashtable(GHashTable *ht) +{ + g_hash_table_foreach(ht, bdevstate_free_cb, NULL); + g_hash_table_destroy(ht); +} /* The saved state for each trace contains a member "processes", which stores a copy of the process table, and a member "tracefiles" with @@ -538,7 +1275,7 @@ static GHashTable *lttv_state_copy_process_table(GHashTable *processes) static void state_save(LttvTraceState *self, LttvAttribute *container) { - guint i, nb_tracefile, nb_cpus; + guint i, nb_tracefile, nb_cpus, nb_irqs; LttvTracefileState *tfcs; @@ -610,12 +1347,34 @@ static void state_save(LttvTraceState *self, LttvAttribute *container) tfcs->parent.timestamp.tv_sec, tfcs->parent.timestamp.tv_nsec); } } + + /* save the cpu state */ + { + guint size = sizeof(LttvCPUState)*nb_cpus; + value = lttv_attribute_add(container, LTTV_STATE_RESOURCE_CPUS, + LTTV_POINTER); + *(value.v_pointer) = lttv_state_copy_cpu_states(self->cpu_states, nb_cpus); + } + + /* save the irq state */ + nb_irqs = self->nb_irqs; + { + guint size = sizeof(LttvCPUState)*nb_irqs; + value = lttv_attribute_add(container, LTTV_STATE_RESOURCE_IRQS, + LTTV_POINTER); + *(value.v_pointer) = lttv_state_copy_irq_states(self->irq_states, nb_irqs); + } + + /* save the blkdev states */ + value = lttv_attribute_add(container, LTTV_STATE_RESOURCE_BLKDEVS, + LTTV_POINTER); + *(value.v_pointer) = lttv_state_copy_blkdev_hashtable(self->bdev_states); } static void state_restore(LttvTraceState *self, LttvAttribute *container) { - guint i, nb_tracefile, pid, nb_cpus; + guint i, nb_tracefile, pid, nb_cpus, nb_irqs; LttvTracefileState *tfcs; @@ -629,7 +1388,7 @@ static void state_restore(LttvTraceState *self, LttvAttribute *container) LttvAttributeName name; - gboolean is_named; + gboolean is_named; LttEventPosition *ep; @@ -656,12 +1415,30 @@ static void state_restore(LttvTraceState *self, LttvAttribute *container) 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); + + /* restore cpu resource states */ + type = lttv_attribute_get_by_name(container, LTTV_STATE_RESOURCE_CPUS, &value); + g_assert(type == LTTV_POINTER); + lttv_state_free_cpu_states(self->cpu_states, nb_cpus); + self->cpu_states = lttv_state_copy_cpu_states(*(value.v_pointer), nb_cpus); + + /* restore irq resource states */ + nb_irqs = self->nb_irqs; + type = lttv_attribute_get_by_name(container, LTTV_STATE_RESOURCE_IRQS, &value); + g_assert(type == LTTV_POINTER); + lttv_state_free_irq_states(self->irq_states, nb_irqs); + self->irq_states = lttv_state_copy_irq_states(*(value.v_pointer), nb_irqs); + /* restore the blkdev states */ + type = lttv_attribute_get_by_name(container, LTTV_STATE_RESOURCE_BLKDEVS, &value); + g_assert(type == LTTV_POINTER); + lttv_state_free_blkdev_hashtable(self->bdev_states); + self->bdev_states = lttv_state_copy_blkdev_hashtable(*(value.v_pointer)); + for(i = 0 ; i < nb_tracefile ; i++) { tfcs = LTTV_TRACEFILE_STATE(g_array_index(self->parent.tracefiles, @@ -682,6 +1459,8 @@ static void state_restore(LttvTraceState *self, LttvAttribute *container) //g_assert(*(value.v_pointer) != NULL); ep = *(value.v_pointer); g_assert(tfcs->parent.t_context != NULL); + + tfcs->cpu_state = &self->cpu_states[tfcs->cpu]; LttvTracefileContext *tfc = LTTV_TRACEFILE_CONTEXT(tfcs); g_tree_remove(tsc->pqueue, tfc); @@ -715,7 +1494,7 @@ static void state_saved_free(LttvTraceState *self, LttvAttribute *container) LttvAttributeName name; - gboolean is_named; + gboolean is_named; LttEventPosition *ep; @@ -768,7 +1547,7 @@ static void free_saved_state(LttvTraceState *self) LttvAttributeName name; - gboolean is_named; + gboolean is_named; LttvAttribute *saved_states; @@ -826,10 +1605,13 @@ free_max_time(LttvTraceState *tcs) typedef struct _LttvNameTables { // FIXME GQuark *eventtype_names; GQuark *syscall_names; - guint nb_syscalls; + guint nb_syscalls; GQuark *trap_names; + guint nb_traps; GQuark *irq_names; + guint nb_irqs; GQuark *soft_irq_names; + guint nb_softirqs; } LttvNameTables; @@ -874,87 +1656,96 @@ create_name_tables(LttvTraceState *tcs) LTT_FACILITY_KERNEL_ARCH, LTT_EVENT_SYSCALL_ENTRY, LTT_FIELD_SYSCALL_ID, 0, 0, NULL, NULL, &h)) { - - 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->syscall_names = g_new(GQuark, nb); - name_tables->nb_syscalls = nb; - - for(i = 0 ; i < nb ; 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); - //} - } else { - name_tables->syscall_names = NULL; - name_tables->nb_syscalls = 0; - } - - if(!lttv_trace_find_hook(tcs->parent.t, LTT_FACILITY_KERNEL, + + 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->syscall_names = g_new(GQuark, nb); + name_tables->nb_syscalls = nb; + + for(i = 0 ; i < nb ; i++) { + name_tables->syscall_names[i] = ltt_enum_string_get(t, i); + if(!name_tables->syscall_names[i]) { + GString *string = g_string_new(""); + g_string_printf(string, "syscall %u", i); + name_tables->syscall_names[i] = g_quark_from_string(string->str); + g_string_free(string, TRUE); + } + } + + //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); + //} + } else { + name_tables->syscall_names = NULL; + name_tables->nb_syscalls = 0; + } + + if(!lttv_trace_find_hook(tcs->parent.t, LTT_FACILITY_KERNEL_ARCH, LTT_EVENT_TRAP_ENTRY, LTT_FIELD_TRAP_ID, 0, 0, NULL, NULL, &h)) { - thf = lttv_trace_hook_get_first(&h); + thf = lttv_trace_hook_get_first(&h); - t = ltt_field_type(thf->f1); - //nb = ltt_type_element_number(t); + t = ltt_field_type(thf->f1); + //nb = ltt_type_element_number(t); - lttv_trace_hook_destroy(&h); + lttv_trace_hook_destroy(&h); - /* - name_tables->trap_names = g_new(GQuark, nb); - for(i = 0 ; i < nb ; i++) { - name_tables->trap_names[i] = g_quark_from_string( - ltt_enum_string_get(t, i)); - } - */ - - name_tables->trap_names = g_new(GQuark, 256); - for(i = 0 ; i < 256 ; i++) { - g_string_printf(fe_name, "trap %d", i); - name_tables->trap_names[i] = g_quark_from_string(fe_name->str); - } - } else { - name_tables->trap_names = NULL; - } + /* + name_tables->trap_names = g_new(GQuark, nb); + for(i = 0 ; i < nb ; i++) { + name_tables->trap_names[i] = g_quark_from_string( + ltt_enum_string_get(t, i)); + } + */ + name_tables->nb_traps = 256; + name_tables->trap_names = g_new(GQuark, 256); + for(i = 0 ; i < 256 ; i++) { + g_string_printf(fe_name, "trap %d", i); + name_tables->trap_names[i] = g_quark_from_string(fe_name->str); + } + } else { + name_tables->trap_names = NULL; + name_tables->nb_traps = 0; + } if(!lttv_trace_find_hook(tcs->parent.t, LTT_FACILITY_KERNEL, LTT_EVENT_IRQ_ENTRY, LTT_FIELD_IRQ_ID, 0, 0, NULL, NULL, &h)) { - - 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++) { - name_tables->irq_names[i] = g_quark_from_string(ltt_enum_string_get(t, i)); - } - */ - - name_tables->irq_names = g_new(GQuark, 256); - for(i = 0 ; i < 256 ; i++) { - g_string_printf(fe_name, "irq %d", i); - name_tables->irq_names[i] = g_quark_from_string(fe_name->str); - } - } else { - name_tables->irq_names = NULL; - } + + 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++) { + name_tables->irq_names[i] = g_quark_from_string(ltt_enum_string_get(t, i)); + } + */ + + name_tables->nb_irqs = 256; + name_tables->irq_names = g_new(GQuark, 256); + for(i = 0 ; i < 256 ; i++) { + g_string_printf(fe_name, "irq %d", i); + name_tables->irq_names[i] = g_quark_from_string(fe_name->str); + } + } else { + name_tables->nb_irqs = 0; + name_tables->irq_names = NULL; + } /* name_tables->soft_irq_names = g_new(GQuark, nb); for(i = 0 ; i < nb ; i++) { @@ -962,6 +1753,7 @@ create_name_tables(LttvTraceState *tcs) } */ + name_tables->nb_softirqs = 256; name_tables->soft_irq_names = g_new(GQuark, 256); for(i = 0 ; i < 256 ; i++) { g_string_printf(fe_name, "softirq %d", i); @@ -988,8 +1780,11 @@ get_name_tables(LttvTraceState *tcs) tcs->syscall_names = name_tables->syscall_names; tcs->nb_syscalls = name_tables->nb_syscalls; tcs->trap_names = name_tables->trap_names; + tcs->nb_traps = name_tables->nb_traps; tcs->irq_names = name_tables->irq_names; tcs->soft_irq_names = name_tables->soft_irq_names; + tcs->nb_irqs = name_tables->nb_irqs; + tcs->nb_softirqs = name_tables->nb_softirqs; } @@ -1031,6 +1826,67 @@ static void hash_table_check(GHashTable *table) #endif +/* clears the stack and sets the state passed as argument */ +static void cpu_set_base_mode(LttvCPUState *cpust, LttvCPUMode state) +{ + g_array_set_size(cpust->mode_stack, 1); + ((GQuark *)cpust->mode_stack->data)[0] = state; +} + +static void cpu_push_mode(LttvCPUState *cpust, LttvCPUMode state) +{ + g_array_set_size(cpust->mode_stack, cpust->mode_stack->len + 1); + ((GQuark *)cpust->mode_stack->data)[cpust->mode_stack->len - 1] = state; +} + +static void cpu_pop_mode(LttvCPUState *cpust) +{ + if(cpust->mode_stack->len <= 1) + cpu_set_base_mode(cpust, LTTV_CPU_UNKNOWN); + else + g_array_set_size(cpust->mode_stack, cpust->mode_stack->len - 1); +} + +/* clears the stack and sets the state passed as argument */ +static void bdev_set_base_mode(LttvBdevState *bdevst, LttvBdevMode state) +{ + g_array_set_size(bdevst->mode_stack, 1); + ((GQuark *)bdevst->mode_stack->data)[0] = state; +} + +static void bdev_push_mode(LttvBdevState *bdevst, LttvBdevMode state) +{ + g_array_set_size(bdevst->mode_stack, bdevst->mode_stack->len + 1); + ((GQuark *)bdevst->mode_stack->data)[bdevst->mode_stack->len - 1] = state; +} + +static void bdev_pop_mode(LttvBdevState *bdevst) +{ + if(bdevst->mode_stack->len <= 1) + bdev_set_base_mode(bdevst, LTTV_BDEV_UNKNOWN); + else + g_array_set_size(bdevst->mode_stack, bdevst->mode_stack->len - 1); +} + +static void irq_set_base_mode(LttvIRQState *irqst, LttvIRQMode state) +{ + g_array_set_size(irqst->mode_stack, 1); + ((GQuark *)irqst->mode_stack->data)[0] = state; +} + +static void irq_push_mode(LttvIRQState *irqst, LttvIRQMode state) +{ + g_array_set_size(irqst->mode_stack, irqst->mode_stack->len + 1); + ((GQuark *)irqst->mode_stack->data)[irqst->mode_stack->len - 1] = state; +} + +static void irq_pop_mode(LttvIRQState *irqst) +{ + if(irqst->mode_stack->len <= 1) + irq_set_base_mode(irqst, LTTV_IRQ_UNKNOWN); + else + g_array_set_size(irqst->mode_stack, irqst->mode_stack->len - 1); +} static void push_state(LttvTracefileState *tfs, LttvExecutionMode t, guint state_id) @@ -1057,7 +1913,7 @@ static void push_state(LttvTracefileState *tfs, LttvExecutionMode t, es->t = t; es->n = state_id; es->entry = es->change = tfs->parent.timestamp; - es->cum_cpu_time = ltt_time_zero; + es->cum_cpu_time = ltt_time_zero; es->s = process->state->s; process->state = es; } @@ -1065,9 +1921,9 @@ static void push_state(LttvTracefileState *tfs, LttvExecutionMode t, /* pop state * return 1 when empty, else 0 */ int lttv_state_pop_state_cleanup(LttvProcessState *process, - LttvTracefileState *tfs) + LttvTracefileState *tfs) { - guint cpu = tfs->cpu; + guint cpu = tfs->cpu; LttvTraceState *ts = (LttvTraceState*)tfs->parent.t_context; guint depth = process->execution_stack->len; @@ -1081,8 +1937,8 @@ int lttv_state_pop_state_cleanup(LttvProcessState *process, process->state = &g_array_index(process->execution_stack, LttvExecutionState, depth - 2); process->state->change = tfs->parent.timestamp; - - return 0; + + return 0; } static void pop_state(LttvTracefileState *tfs, LttvExecutionMode t) @@ -1097,13 +1953,14 @@ static void pop_state(LttvTracefileState *tfs, LttvExecutionMode t) g_info("Different execution mode type (%lu.%09lu): ignore it\n", tfs->parent.timestamp.tv_sec, tfs->parent.timestamp.tv_nsec); g_info("process state has %s when pop_int is %s\n", - g_quark_to_string(process->state->t), - g_quark_to_string(t)); - g_info("{ %u, %u, %s, %s }\n", - process->pid, - process->ppid, - g_quark_to_string(process->name), - g_quark_to_string(process->state->s)); + g_quark_to_string(process->state->t), + g_quark_to_string(t)); + g_info("{ %u, %u, %s, %s, %s }\n", + process->pid, + process->ppid, + g_quark_to_string(process->name), + g_quark_to_string(process->brand), + g_quark_to_string(process->state->s)); return; } @@ -1121,60 +1978,60 @@ static void pop_state(LttvTracefileState *tfs, LttvExecutionMode t) } struct search_result { - const LttTime *time; /* Requested time */ - LttTime *best; /* Best result */ + const LttTime *time; /* Requested time */ + LttTime *best; /* Best result */ }; static gint search_usertrace(gconstpointer a, gconstpointer b) { - const LttTime *elem_time = (const LttTime*)a; - /* Explicit non const cast */ - struct search_result *res = (struct search_result *)b; - - if(ltt_time_compare(*elem_time, *(res->time)) < 0) { - /* The usertrace was created before the schedchange */ - /* Get larger keys */ - return 1; - } else if(ltt_time_compare(*elem_time, *(res->time)) >= 0) { - /* The usertrace was created after the schedchange time */ - /* Get smaller keys */ - if(res->best) { - if(ltt_time_compare(*elem_time, *res->best) < 0) { - res->best = elem_time; - } - } else { - res->best = elem_time; - } - return -1; - } - return 0; + const LttTime *elem_time = (const LttTime*)a; + /* Explicit non const cast */ + struct search_result *res = (struct search_result *)b; + + if(ltt_time_compare(*elem_time, *(res->time)) < 0) { + /* The usertrace was created before the schedchange */ + /* Get larger keys */ + return 1; + } else if(ltt_time_compare(*elem_time, *(res->time)) >= 0) { + /* The usertrace was created after the schedchange time */ + /* Get smaller keys */ + if(res->best) { + if(ltt_time_compare(*elem_time, *res->best) < 0) { + res->best = elem_time; + } + } else { + res->best = elem_time; + } + return -1; + } + return 0; } static LttvTracefileState *ltt_state_usertrace_find(LttvTraceState *tcs, - guint pid, const LttTime *timestamp) -{ - LttvTracefileState *tfs = NULL; - struct search_result res; - /* Find the usertrace associated with a pid and time interval. - * Search in the usertraces by PID (within a hash) and then, for each - * corresponding element of the array, find the first one with creation - * timestamp the lowest, but higher or equal to "timestamp". */ - res.time = timestamp; - res.best = NULL; - GTree *usertrace_tree = g_hash_table_lookup(tcs->usertraces, (gpointer)pid); - if(usertrace_tree) { - g_tree_search(usertrace_tree, search_usertrace, &res); - if(res.best) - tfs = g_tree_lookup(usertrace_tree, res.best); - } + guint pid, const LttTime *timestamp) +{ + LttvTracefileState *tfs = NULL; + struct search_result res; + /* Find the usertrace associated with a pid and time interval. + * Search in the usertraces by PID (within a hash) and then, for each + * corresponding element of the array, find the first one with creation + * timestamp the lowest, but higher or equal to "timestamp". */ + res.time = timestamp; + res.best = NULL; + GTree *usertrace_tree = g_hash_table_lookup(tcs->usertraces, (gpointer)pid); + if(usertrace_tree) { + g_tree_search(usertrace_tree, search_usertrace, &res); + if(res.best) + tfs = g_tree_lookup(usertrace_tree, res.best); + } - return tfs; + return tfs; } LttvProcessState * lttv_state_create_process(LttvTraceState *tcs, LttvProcessState *parent, - guint cpu, guint pid, GQuark name, const LttTime *timestamp) + guint cpu, guint pid, guint tgid, GQuark name, const LttTime *timestamp) { LttvProcessState *process = g_new(LttvProcessState, 1); @@ -1185,13 +2042,15 @@ lttv_state_create_process(LttvTraceState *tcs, LttvProcessState *parent, char buffer[128]; process->pid = pid; + process->tgid = tgid; process->cpu = cpu; process->name = name; + process->brand = LTTV_STATE_UNBRANDED; //process->last_cpu = tfs->cpu_name; //process->last_cpu_index = ltt_tracefile_num(((LttvTracefileContext*)tfs)->tf); - process->type = LTTV_STATE_USER_THREAD; - process->usertrace = ltt_state_usertrace_find(tcs, pid, timestamp); - process->current_function = 0; //function 0x0 by default. + process->type = LTTV_STATE_USER_THREAD; + process->usertrace = ltt_state_usertrace_find(tcs, pid, timestamp); + process->current_function = 0; //function 0x0 by default. g_info("Process %u, core %p", process->pid, process); g_hash_table_insert(tcs->processes, process, process); @@ -1212,7 +2071,7 @@ lttv_state_create_process(LttvTraceState *tcs, LttvProcessState *parent, process->insertion_time = *timestamp; sprintf(buffer,"%d-%lu.%lu",pid, process->creation_time.tv_sec, - process->creation_time.tv_nsec); + process->creation_time.tv_nsec); process->pid_time = g_quark_from_string(buffer); process->cpu = cpu; //process->last_cpu = tfs->cpu_name; @@ -1227,7 +2086,7 @@ lttv_state_create_process(LttvTraceState *tcs, LttvProcessState *parent, es->entry = *timestamp; //g_assert(timestamp->tv_sec != 0); es->change = *timestamp; - es->cum_cpu_time = ltt_time_zero; + es->cum_cpu_time = ltt_time_zero; es->s = LTTV_STATE_RUN; es = process->state = &g_array_index(process->execution_stack, @@ -1237,13 +2096,13 @@ lttv_state_create_process(LttvTraceState *tcs, LttvProcessState *parent, es->entry = *timestamp; //g_assert(timestamp->tv_sec != 0); es->change = *timestamp; - es->cum_cpu_time = ltt_time_zero; + es->cum_cpu_time = ltt_time_zero; es->s = LTTV_STATE_WAIT_FORK; - - /* Allocate an empty function call stack. If it's empty, use 0x0. */ - process->user_stack = g_array_sized_new(FALSE, FALSE, - sizeof(guint64), 0); - + + /* Allocate an empty function call stack. If it's empty, use 0x0. */ + process->user_stack = g_array_sized_new(FALSE, FALSE, + sizeof(guint64), 0); + return process; } @@ -1261,20 +2120,24 @@ LttvProcessState *lttv_state_find_process(LttvTraceState *ts, guint cpu, LttvProcessState * lttv_state_find_process_or_create(LttvTraceState *ts, guint cpu, guint pid, - LttTime *timestamp) + const LttTime *timestamp) { LttvProcessState *process = lttv_state_find_process(ts, cpu, pid); LttvExecutionState *es; /* Put ltt_time_zero creation time for unexisting processes */ if(unlikely(process == NULL)) { - process = lttv_state_create_process(ts, - NULL, cpu, pid, LTTV_STATE_UNNAMED, timestamp); - /* We are not sure is it's a kernel thread or normal thread, put the - * bottom stack state to unknown */ - es = &g_array_index(process->execution_stack, LttvExecutionState, 0); - es->t = LTTV_STATE_MODE_UNKNOWN; - } + process = lttv_state_create_process(ts, + NULL, cpu, pid, 0, LTTV_STATE_UNNAMED, timestamp); + /* We are not sure is it's a kernel thread or normal thread, put the + * bottom stack state to unknown */ + process->execution_stack = + g_array_set_size(process->execution_stack, 1); + process->state = es = + &g_array_index(process->execution_stack, LttvExecutionState, 0); + es->t = LTTV_STATE_MODE_UNKNOWN; + es->s = LTTV_STATE_UNNAMED; + } return process; } @@ -1317,26 +2180,31 @@ static void lttv_state_free_process_table(GHashTable *processes) static gboolean syscall_entry(void *hook_data, void *call_data) { LttvTracefileState *s = (LttvTracefileState *)call_data; + guint cpu = s->cpu; + 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; LttField *f = thf->f1; LttvExecutionSubmode submode; - guint nb_syscalls = ((LttvTraceState *)(s->parent.t_context))->nb_syscalls; - guint syscall = ltt_event_get_unsigned(e, f); - - if(syscall < nb_syscalls) { - submode = ((LttvTraceState *)(s->parent.t_context))->syscall_names[ - syscall]; - } else { - /* Fixup an incomplete syscall table */ - GString *string = g_string_new(""); + guint nb_syscalls = ((LttvTraceState *)(s->parent.t_context))->nb_syscalls; + guint syscall = ltt_event_get_unsigned(e, f); + + if(syscall < nb_syscalls) { + submode = ((LttvTraceState *)(s->parent.t_context))->syscall_names[ + syscall]; + } else { + /* Fixup an incomplete syscall table */ + GString *string = g_string_new(""); g_string_printf(string, "syscall %u", syscall); - submode = g_quark_from_string(string->str); - g_string_free(string, TRUE); - } - push_state(s, LTTV_STATE_SYSCALL, submode); + submode = g_quark_from_string(string->str); + g_string_free(string, TRUE); + } + /* There can be no system call from PID 0 : unknown state */ + if(process->pid != 0) + push_state(s, LTTV_STATE_SYSCALL, submode); return FALSE; } @@ -1344,8 +2212,13 @@ static gboolean syscall_entry(void *hook_data, void *call_data) static gboolean syscall_exit(void *hook_data, void *call_data) { LttvTracefileState *s = (LttvTracefileState *)call_data; + guint cpu = s->cpu; + LttvTraceState *ts = (LttvTraceState*)s->parent.t_context; + LttvProcessState *process = ts->running_process[cpu]; - pop_state(s, LTTV_STATE_SYSCALL); + /* There can be no system call from PID 0 : unknown state */ + if(process->pid != 0) + pop_state(s, LTTV_STATE_SYSCALL); return FALSE; } @@ -1359,25 +2232,43 @@ static gboolean trap_entry(void *hook_data, void *call_data) LttvExecutionSubmode submode; - submode = ((LttvTraceState *)(s->parent.t_context))->trap_names[ - ltt_event_get_unsigned(e, f)]; + guint64 nb_traps = ((LttvTraceState *)(s->parent.t_context))->nb_traps; + guint64 trap = ltt_event_get_long_unsigned(e, f); + + if(trap < nb_traps) { + submode = ((LttvTraceState *)(s->parent.t_context))->trap_names[trap]; + } else { + /* Fixup an incomplete trap table */ + GString *string = g_string_new(""); + g_string_printf(string, "trap %llu", trap); + submode = g_quark_from_string(string->str); + g_string_free(string, TRUE); + } + push_state(s, LTTV_STATE_TRAP, submode); + + /* update cpu status */ + cpu_push_mode(s->cpu_state, LTTV_CPU_TRAP); + return FALSE; } - static gboolean trap_exit(void *hook_data, void *call_data) { LttvTracefileState *s = (LttvTracefileState *)call_data; pop_state(s, LTTV_STATE_TRAP); + + /* update cpu status */ + cpu_pop_mode(s->cpu_state); + return FALSE; } - static gboolean irq_entry(void *hook_data, void *call_data) { LttvTracefileState *s = (LttvTracefileState *)call_data; + LttvTraceState *ts = (LttvTraceState *)s->parent.t_context; LttEvent *e = ltt_tracefile_get_event(s->parent.tf); guint8 fac_id = ltt_event_facility_id(e); guint8 ev_id = ltt_event_eventtype_id(e); @@ -1388,12 +2279,30 @@ static gboolean irq_entry(void *hook_data, void *call_data) LttField *f = thf->f1; LttvExecutionSubmode submode; + guint64 irq = ltt_event_get_long_unsigned(e, f); + guint64 nb_irqs = ((LttvTraceState *)(s->parent.t_context))->nb_irqs; + GString *string; - submode = ((LttvTraceState *)(s->parent.t_context))->irq_names[ - ltt_event_get_unsigned(e, f)]; + if(irq < nb_irqs) { + submode = ((LttvTraceState *)(s->parent.t_context))->irq_names[irq]; + } else { + /* Fixup an incomplete irq table */ + GString *string = g_string_new(""); + g_string_printf(string, "irq %llu", irq); + submode = g_quark_from_string(string->str); + g_string_free(string, TRUE); + } /* Do something with the info about being in user or system mode when int? */ push_state(s, LTTV_STATE_IRQ, submode); + + /* update cpu status */ + cpu_push_mode(s->cpu_state, LTTV_CPU_IRQ); + + /* update irq status */ + s->cpu_state->last_irq = irq; + irq_push_mode(&ts->irq_states[irq], LTTV_IRQ_BUSY); + return FALSE; } @@ -1410,8 +2319,16 @@ static gboolean soft_irq_exit(void *hook_data, void *call_data) static gboolean irq_exit(void *hook_data, void *call_data) { LttvTracefileState *s = (LttvTracefileState *)call_data; + LttvTraceState *ts = (LttvTraceState *)s->parent.t_context; pop_state(s, LTTV_STATE_IRQ); + + /* update cpu status */ + cpu_pop_mode(s->cpu_state); + + /* update irq status */ + irq_pop_mode(&ts->irq_states[s->cpu_state->last_irq]); + return FALSE; } @@ -1428,15 +2345,71 @@ static gboolean soft_irq_entry(void *hook_data, void *call_data) LttField *f = thf->f1; LttvExecutionSubmode submode; + guint64 softirq = ltt_event_get_long_unsigned(e, f); + guint64 nb_softirqs = ((LttvTraceState *)(s->parent.t_context))->nb_softirqs; + GString *string; - submode = ((LttvTraceState *)(s->parent.t_context))->soft_irq_names[ - ltt_event_get_unsigned(e, f)]; + if(softirq < nb_softirqs) { + submode = ((LttvTraceState *)(s->parent.t_context))->soft_irq_names[softirq]; + } else { + /* Fixup an incomplete irq table */ + GString *string = g_string_new(""); + g_string_printf(string, "softirq %llu", softirq); + submode = g_quark_from_string(string->str); + g_string_free(string, TRUE); + } /* 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 bdev_request_issue(void *hook_data, void *call_data) +{ + LttvTracefileState *s = (LttvTracefileState *)call_data; + LttvTraceState *ts = (LttvTraceState *)s->parent.t_context; + LttEvent *e = ltt_tracefile_get_event(s->parent.tf); + guint8 fac_id = ltt_event_facility_id(e); + guint8 ev_id = ltt_event_eventtype_id(e); + LttvTraceHookByFacility *thf = (LttvTraceHookByFacility *)hook_data; + + guint major = ltt_event_get_long_unsigned(e, thf->f1); + guint minor = ltt_event_get_long_unsigned(e, thf->f2); + guint oper = ltt_event_get_long_unsigned(e, thf->f3); + guint16 devcode = MKDEV(major,minor); + + /* have we seen this block device before? */ + gpointer bdev = get_hashed_bdevstate(ts, devcode); + + if(oper == 0) + bdev_push_mode(bdev, LTTV_BDEV_BUSY_READING); + else + bdev_push_mode(bdev, LTTV_BDEV_BUSY_WRITING); + + return FALSE; +} + +static gboolean bdev_request_complete(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 major = ltt_event_get_long_unsigned(e, thf->f1); + guint minor = ltt_event_get_long_unsigned(e, thf->f2); + guint oper = ltt_event_get_long_unsigned(e, thf->f3); + guint16 devcode = MKDEV(major,minor); + + /* have we seen this block device before? */ + gpointer bdev = get_hashed_bdevstate(ts, devcode); + + /* update block device */ + bdev_pop_mode(bdev); + + return FALSE; +} + static void push_function(LttvTracefileState *tfs, guint64 funcptr) { guint64 *new_func; @@ -1451,7 +2424,7 @@ static void push_function(LttvTracefileState *tfs, guint64 funcptr) g_array_set_size(process->user_stack, depth + 1); new_func = &g_array_index(process->user_stack, guint64, depth); - *new_func = funcptr; + *new_func = funcptr; process->current_function = funcptr; } @@ -1465,12 +2438,13 @@ static void pop_function(LttvTracefileState *tfs, guint64 funcptr) g_info("Different functions (%lu.%09lu): ignore it\n", tfs->parent.timestamp.tv_sec, tfs->parent.timestamp.tv_nsec); g_info("process state has %llu when pop_function is %llu\n", - process->current_function, funcptr); - g_info("{ %u, %u, %s, %s }\n", - process->pid, - process->ppid, - g_quark_to_string(process->name), - g_quark_to_string(process->state->s)); + process->current_function, funcptr); + g_info("{ %u, %u, %s, %s, %s }\n", + process->pid, + process->ppid, + g_quark_to_string(process->name), + g_quark_to_string(process->brand), + g_quark_to_string(process->state->s)); return; } guint depth = process->user_stack->len; @@ -1484,7 +2458,7 @@ static void pop_function(LttvTracefileState *tfs, guint64 funcptr) process->user_stack = g_array_set_size(process->user_stack, depth - 1); process->current_function = - g_array_index(process->user_stack, guint64, depth - 2); + g_array_index(process->user_stack, guint64, depth - 2); } @@ -1497,7 +2471,7 @@ static gboolean function_entry(void *hook_data, void *call_data) LttvTraceHookByFacility *thf = (LttvTraceHookByFacility *)hook_data; g_assert(thf->f1 != NULL); LttField *f = thf->f1; - guint64 funcptr = ltt_event_get_long_unsigned(e, f); + guint64 funcptr = ltt_event_get_long_unsigned(e, f); push_function(s, funcptr); return FALSE; @@ -1512,7 +2486,7 @@ static gboolean function_exit(void *hook_data, void *call_data) LttvTraceHookByFacility *thf = (LttvTraceHookByFacility *)hook_data; g_assert(thf->f1 != NULL); LttField *f = thf->f1; - guint64 funcptr = ltt_event_get_long_unsigned(e, f); + guint64 funcptr = ltt_event_get_long_unsigned(e, f); LttvExecutionSubmode submode; @@ -1531,11 +2505,11 @@ static gboolean schedchange(void *hook_data, void *call_data) LttEvent *e = ltt_tracefile_get_event(s->parent.tf); LttvTraceHookByFacility *thf = (LttvTraceHookByFacility *)hook_data; guint pid_in, pid_out; - gint state_out; + gint64 state_out; 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); + state_out = ltt_event_get_long_int(e, thf->f3); if(likely(process != NULL)) { @@ -1547,23 +2521,35 @@ 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. We need to silently ignore schedchange coming after a - //process_free, or it causes glitches. (FIXME) + //process_free, or it causes glitches. (FIXME) //if(unlikely(process->pid != pid_out)) { // g_assert(process->pid == 0); //} - - if(unlikely(process->state->s == LTTV_STATE_EXIT)) { - process->state->s = LTTV_STATE_ZOMBIE; - process->state->change = s->parent.timestamp; + if(process->pid == 0 + && process->state->t == LTTV_STATE_MODE_UNKNOWN) { + if(pid_out == 0) { + /* Scheduling out of pid 0 at beginning of the trace : + * we know for sure it is in syscall mode at this point. */ + g_assert(process->execution_stack->len == 1); + process->state->t = LTTV_STATE_SYSCALL; + process->state->s = LTTV_STATE_WAIT; + process->state->change = s->parent.timestamp; + process->state->entry = s->parent.timestamp; + } } else { - 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(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)) process->state->s = LTTV_STATE_WAIT_CPU; + else process->state->s = LTTV_STATE_WAIT; + process->state->change = s->parent.timestamp; + } + + if(state_out == 32 || state_out == 128) + exit_process(s, process); /* EXIT_DEAD || TASK_DEAD */ + /* see sched.h for states */ } - - if(state_out == 32) - exit_process(s, process); /* EXIT_DEAD */ - /* see sched.h for states */ } process = ts->running_process[cpu] = lttv_state_find_process_or_create( @@ -1572,10 +2558,17 @@ static gboolean schedchange(void *hook_data, void *call_data) &s->parent.timestamp); process->state->s = LTTV_STATE_RUN; process->cpu = cpu; - if(process->usertrace) - process->usertrace->cpu = cpu; + if(process->usertrace) + process->usertrace->cpu = cpu; // process->last_cpu_index = ltt_tracefile_num(((LttvTracefileContext*)s)->tf); process->state->change = s->parent.timestamp; + + /* update cpu status */ + if(pid_in == 0) + cpu_set_base_mode(s->cpu_state, LTTV_CPU_IDLE); + else + cpu_set_base_mode(s->cpu_state, LTTV_CPU_BUSY); + return FALSE; } @@ -1585,7 +2578,8 @@ static gboolean process_fork(void *hook_data, void *call_data) LttEvent *e = ltt_tracefile_get_event(s->parent.tf); LttvTraceHookByFacility *thf = (LttvTraceHookByFacility *)hook_data; guint parent_pid; - guint child_pid; + guint child_pid; /* In the Linux Kernel, there is one PID per thread. */ + guint child_tgid; /* tgid in the Linux kernel is the "real" POSIX PID. */ LttvProcessState *zombie_process; guint cpu = s->cpu; LttvTraceState *ts = (LttvTraceState*)s->parent.t_context; @@ -1597,6 +2591,11 @@ static gboolean process_fork(void *hook_data, void *call_data) /* Child PID */ child_pid = ltt_event_get_unsigned(e, thf->f2); + s->parent.target_pid = child_pid; + + /* Child TGID */ + if(thf->f3) child_tgid = ltt_event_get_unsigned(e, thf->f3); + else child_tgid = 0; /* 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 @@ -1625,7 +2624,8 @@ static gboolean process_fork(void *hook_data, void *call_data) child_process = lttv_state_find_process(ts, ANY_CPU, child_pid); if(child_process == NULL) { child_process = lttv_state_create_process(ts, process, cpu, - child_pid, LTTV_STATE_UNNAMED, &s->parent.timestamp); + child_pid, child_tgid, + LTTV_STATE_UNNAMED, &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 @@ -1636,14 +2636,17 @@ static gboolean process_fork(void *hook_data, void *call_data) g_assert(0); /* This is a problematic case : the process has been created before the fork event */ child_process->ppid = process->pid; + child_process->tgid = child_tgid; } - g_assert(child_process->name == LTTV_STATE_UNNAMED); - child_process->name = process->name; + g_assert(child_process->name == LTTV_STATE_UNNAMED); + child_process->name = process->name; + child_process->brand = process->brand; return FALSE; } -/* We stamp a newly created process as kernel_thread */ +/* We stamp a newly created process as kernel_thread. + * The thread should not be running yet. */ static gboolean process_kernel_thread(void *hook_data, void *call_data) { LttvTracefileState *s = (LttvTracefileState *)call_data; @@ -1656,14 +2659,19 @@ static gboolean process_kernel_thread(void *hook_data, void *call_data) LttvExecutionState *es; /* PID */ - pid = ltt_event_get_unsigned(e, thf->f1); + pid = (guint)ltt_event_get_long_unsigned(e, thf->f1); + s->parent.target_pid = pid; - process = lttv_state_find_process(ts, ANY_CPU, pid); - es = &g_array_index(process->execution_stack, LttvExecutionState, 0); - es->t = LTTV_STATE_SYSCALL; - process->type = LTTV_STATE_KERNEL_THREAD; + process = lttv_state_find_process_or_create(ts, ANY_CPU, pid, + <t_time_zero); + process->execution_stack = + g_array_set_size(process->execution_stack, 1); + es = process->state = + &g_array_index(process->execution_stack, LttvExecutionState, 0); + es->t = LTTV_STATE_SYSCALL; + process->type = LTTV_STATE_KERNEL_THREAD; - return FALSE; + return FALSE; } static gboolean process_exit(void *hook_data, void *call_data) @@ -1675,13 +2683,15 @@ static gboolean process_exit(void *hook_data, void *call_data) guint pid; guint cpu = s->cpu; LttvTraceState *ts = (LttvTraceState*)s->parent.t_context; - LttvProcessState *process = ts->running_process[cpu]; + LttvProcessState *process; // = ts->running_process[cpu]; pid = ltt_event_get_unsigned(e, thf->f1); + s->parent.target_pid = pid; // FIXME : Add this test in the "known state" section // g_assert(process->pid == pid); + process = lttv_state_find_process(ts, ANY_CPU, pid); if(likely(process != NULL)) { process->state->s = LTTV_STATE_EXIT; } @@ -1699,6 +2709,7 @@ 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); + s->parent.target_pid = release_pid; g_assert(release_pid != 0); @@ -1726,9 +2737,8 @@ static gboolean process_free(void *hook_data, void *call_data) break; } } - //if(i == num_cpus) /* process is not scheduled */ - //exit_process(s, process); // do nothing : wait for the schedchange to - //delete the process. + if(i == num_cpus) /* process is not scheduled */ + exit_process(s, process); } return FALSE; @@ -1745,6 +2755,7 @@ static gboolean process_exec(void *hook_data, void *call_data) guint cpu = s->cpu; LttvProcessState *process = ts->running_process[cpu]; +#if 0//how to use a sequence that must be transformed in a string /* 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); @@ -1754,109 +2765,260 @@ static gboolean process_exec(void *hook_data, void *call_data) 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); +#endif //0 + + process->name = g_quark_from_string(ltt_event_get_string(e, thf->f1)); + process->brand = LTTV_STATE_UNBRANDED; + //g_free(null_term_name); return FALSE; } +static gboolean thread_brand(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 = s->cpu; + LttvProcessState *process = ts->running_process[cpu]; + + name = ltt_event_get_string(e, thf->f1); + process->brand = g_quark_from_string(name); + + return FALSE; +} + +static void fix_process(gpointer key, gpointer value, + gpointer user_data) +{ + LttvProcessState *process; + LttvExecutionState *es; + process = (LttvProcessState *)value; + LttvTracefileContext *tfc = (LttvTracefileContext *)user_data; + LttTime *timestamp = (LttTime*)user_data; + + if(process->type == LTTV_STATE_KERNEL_THREAD) { + es = &g_array_index(process->execution_stack, LttvExecutionState, 0); + if(es->t == LTTV_STATE_MODE_UNKNOWN) { + es->t = LTTV_STATE_SYSCALL; + es->n = LTTV_STATE_SUBMODE_NONE; + es->entry = *timestamp; + es->change = *timestamp; + es->cum_cpu_time = ltt_time_zero; + if(es->s == LTTV_STATE_UNNAMED) + es->s = LTTV_STATE_WAIT; + } + } else { + es = &g_array_index(process->execution_stack, LttvExecutionState, 0); + if(es->t == LTTV_STATE_MODE_UNKNOWN) { + es->t = LTTV_STATE_USER_MODE; + es->n = LTTV_STATE_SUBMODE_NONE; + es->entry = *timestamp; + //g_assert(timestamp->tv_sec != 0); + es->change = *timestamp; + es->cum_cpu_time = ltt_time_zero; + if(es->s == LTTV_STATE_UNNAMED) + es->s = LTTV_STATE_RUN; + + if(process->execution_stack->len == 1) { + /* Still in bottom unknown mode, means never did a system call + * May be either in user mode, syscall mode, running or waiting.*/ + /* FIXME : we may be tagging syscall mode when being user mode */ + process->execution_stack = + g_array_set_size(process->execution_stack, 2); + 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->cum_cpu_time = ltt_time_zero; + if(es->s == LTTV_STATE_WAIT_FORK) + es->s = LTTV_STATE_WAIT; + } + } + } +} + +static gboolean statedump_end(void *hook_data, void *call_data) +{ + LttvTracefileState *s = (LttvTracefileState *)call_data; + LttvTraceState *ts = (LttvTraceState*)s->parent.t_context; + LttvTracefileContext *tfc = (LttvTracefileContext *)call_data; + LttEvent *e = ltt_tracefile_get_event(s->parent.tf); + LttvTraceHookByFacility *thf = (LttvTraceHookByFacility *)hook_data; + + /* For all processes */ + /* if kernel thread, if stack[0] is unknown, set to syscall mode, wait */ + /* else, if stack[0] is unknown, set to user mode, running */ + + g_hash_table_foreach(ts->processes, fix_process, &tfc->timestamp); +} + static gboolean enum_process_state(void *hook_data, void *call_data) { LttvTracefileState *s = (LttvTracefileState *)call_data; LttEvent *e = ltt_tracefile_get_event(s->parent.tf); - //It's slow : optimise later by doing this before reading trace. - LttEventType *et = ltt_event_eventtype(e); - // + //It's slow : optimise later by doing this before reading trace. + LttEventType *et = ltt_event_eventtype(e); + // LttvTraceHookByFacility *thf = (LttvTraceHookByFacility *)hook_data; guint parent_pid; guint pid; + guint tgid; gchar * command; guint cpu = s->cpu; LttvTraceState *ts = (LttvTraceState*)s->parent.t_context; LttvProcessState *process = ts->running_process[cpu]; LttvProcessState *parent_process; - LttField *f4, *f5, *f6, *f7; - GQuark type, mode, submode, status; - LttvExecutionState *es; + LttField *f4, *f5, *f6, *f7, *f8; + GQuark type, mode, submode, status; + LttvExecutionState *es; + guint i, nb_cpus; /* PID */ pid = ltt_event_get_unsigned(e, thf->f1); - + s->parent.target_pid = pid; + /* Parent PID */ parent_pid = ltt_event_get_unsigned(e, thf->f2); /* Command name */ command = ltt_event_get_string(e, thf->f3); - /* type */ - f4 = ltt_eventtype_field_by_name(et, LTT_FIELD_TYPE); - type = ltt_enum_string_get(ltt_field_type(f4), - ltt_event_get_unsigned(e, f4)); - - /* mode */ - f5 = ltt_eventtype_field_by_name(et, LTT_FIELD_MODE); - mode = ltt_enum_string_get(ltt_field_type(f5), - ltt_event_get_unsigned(e, f5)); - - /* submode */ - f6 = ltt_eventtype_field_by_name(et, LTT_FIELD_SUBMODE); - submode = ltt_enum_string_get(ltt_field_type(f6), - ltt_event_get_unsigned(e, f6)); - - /* status */ - f7 = ltt_eventtype_field_by_name(et, LTT_FIELD_STATUS); - status = ltt_enum_string_get(ltt_field_type(f7), - ltt_event_get_unsigned(e, f7)); + /* type */ + f4 = ltt_eventtype_field_by_name(et, LTT_FIELD_TYPE); + type = ltt_enum_string_get(ltt_field_type(f4), + ltt_event_get_unsigned(e, f4)); + + /* mode */ + f5 = ltt_eventtype_field_by_name(et, LTT_FIELD_MODE); + mode = ltt_enum_string_get(ltt_field_type(f5), + ltt_event_get_unsigned(e, f5)); + + /* submode */ + f6 = ltt_eventtype_field_by_name(et, LTT_FIELD_SUBMODE); + submode = ltt_enum_string_get(ltt_field_type(f6), + ltt_event_get_unsigned(e, f6)); + + /* status */ + f7 = ltt_eventtype_field_by_name(et, LTT_FIELD_STATUS); + status = ltt_enum_string_get(ltt_field_type(f7), + ltt_event_get_unsigned(e, f7)); + + /* TGID */ + f8 = ltt_eventtype_field_by_name(et, LTT_FIELD_TGID); + if(f8) tgid = ltt_event_get_unsigned(e, f8); + else tgid = 0; + + + if(pid == 0) { + nb_cpus = ltt_trace_get_num_cpu(ts->parent.t); + for(i=0; ippid = parent_pid; + process->tgid = tgid; + process->name = g_quark_from_string(command); + es = + &g_array_index(process->execution_stack, LttvExecutionState, 0); + process->type = LTTV_STATE_KERNEL_THREAD; + } - /* The process might exist if a process was forked while performing the sate dump. */ - process = lttv_state_find_process(ts, ANY_CPU, pid); - if(process == NULL) { - parent_process = lttv_state_find_process(ts, ANY_CPU, parent_pid); - process = lttv_state_create_process(ts, parent_process, cpu, - pid, g_quark_from_string(command), - &s->parent.timestamp); - - /* Keep the stack bottom : a running user mode */ - /* Disabled because of inconsistencies in the current statedump states. */ - if(type == LTTV_STATE_KERNEL_THREAD) { - /* Only keep the bottom */ - process->execution_stack = g_array_set_size(process->execution_stack, 1); - es = process->state = &g_array_index(process->execution_stack, - LttvExecutionState, 0); - es->t = LTTV_STATE_SYSCALL; - es->s = status; - es->n = submode; - } else { - /* On top of it : */ - es = process->state = &g_array_index(process->execution_stack, - LttvExecutionState, 1); - es->t = LTTV_STATE_USER_MODE; - es->s = status; - es->n = submode; - } + } else { + /* The process might exist if a process was forked while performing the + * state dump. */ + process = lttv_state_find_process(ts, ANY_CPU, pid); + if(process == NULL) { + parent_process = lttv_state_find_process(ts, ANY_CPU, parent_pid); + process = lttv_state_create_process(ts, parent_process, cpu, + pid, tgid, g_quark_from_string(command), + &s->parent.timestamp); + + /* Keep the stack bottom : a running user mode */ + /* Disabled because of inconsistencies in the current statedump states. */ + if(type == LTTV_STATE_KERNEL_THREAD) { + /* Only keep the bottom + * FIXME Kernel thread : can be in syscall or interrupt or trap. */ + /* Will cause expected trap when in fact being syscall (even after end of + * statedump event) + * Will cause expected interrupt when being syscall. (only before end of + * statedump event) */ + // This will cause a "popping last state on stack, ignoring it." + process->execution_stack = g_array_set_size(process->execution_stack, 1); + es = process->state = &g_array_index(process->execution_stack, + LttvExecutionState, 0); + process->type = LTTV_STATE_KERNEL_THREAD; + es->t = LTTV_STATE_MODE_UNKNOWN; + es->s = LTTV_STATE_UNNAMED; + es->n = LTTV_STATE_SUBMODE_UNKNOWN; + #if 0 + es->t = LTTV_STATE_SYSCALL; + es->s = status; + es->n = submode; + #endif //0 + } else { + /* User space process : + * bottom : user mode + * either currently running or scheduled out. + * can be scheduled out because interrupted in (user mode or in syscall) + * or because of an explicit call to the scheduler in syscall. Note that + * the scheduler call comes after the irq_exit, so never in interrupt + * context. */ + // temp workaround : set size to 1 : only have user mode bottom of stack. + // will cause g_info message of expected syscall mode when in fact being + // in user mode. Can also cause expected trap when in fact being user + // mode in the event of a page fault reenabling interrupts in the handler. + // Expected syscall and trap can also happen after the end of statedump + // This will cause a "popping last state on stack, ignoring it." + process->execution_stack = g_array_set_size(process->execution_stack, 1); + es = process->state = &g_array_index(process->execution_stack, + LttvExecutionState, 0); + es->t = LTTV_STATE_MODE_UNKNOWN; + es->s = LTTV_STATE_UNNAMED; + es->n = LTTV_STATE_SUBMODE_UNKNOWN; + #if 0 + es->t = LTTV_STATE_USER_MODE; + es->s = status; + es->n = submode; + #endif //0 + } + #if 0 + /* UNKNOWN STATE */ + { + es = process->state = &g_array_index(process->execution_stack, + LttvExecutionState, 1); + es->t = LTTV_STATE_MODE_UNKNOWN; + es->s = LTTV_STATE_UNNAMED; + es->n = LTTV_STATE_SUBMODE_UNKNOWN; + } + #endif //0 + } else { + /* The process has already been created : + * Probably was forked while dumping the process state or + * was simply scheduled in prior to get the state dump event. + */ + process->ppid = parent_pid; + process->tgid = tgid; + process->name = g_quark_from_string(command); + process->type = type; + es = + &g_array_index(process->execution_stack, LttvExecutionState, 0); #if 0 - /* UNKNOWN STATE */ - { - es = process->state = &g_array_index(process->execution_stack, - LttvExecutionState, 1); - es->t = LTTV_STATE_MODE_UNKNOWN; - es->s = LTTV_STATE_UNNAMED; - es->n = LTTV_STATE_SUBMODE_UNKNOWN; - } + if(es->t == LTTV_STATE_MODE_UNKNOWN) { + if(type == LTTV_STATE_KERNEL_THREAD) + es->t = LTTV_STATE_SYSCALL; + else + es->t = LTTV_STATE_USER_MODE; + } #endif //0 - } else { - /* The process has already been created : - * Probably was forked while dumping the process state or - * was simply scheduled in prior to get the state dump event. - * We know for sure if it is a user space thread. - */ - process->ppid = parent_pid; - process->name = g_quark_from_string(command); - es = &g_array_index(process->execution_stack, LttvExecutionState, 0); - if(type != LTTV_STATE_KERNEL_THREAD) - es->t = LTTV_STATE_USER_MODE; - /* Don't mess around with the stack, it will eventually become - * ok after the end of state dump. */ + /* Don't mess around with the stack, it will eventually become + * ok after the end of state dump. */ + } } return FALSE; @@ -1890,7 +3052,7 @@ void lttv_state_add_event_hooks(LttvTracesetState *self) LttvAttributeValue val; gint ret; - gint hn; + gint hn; nb_trace = lttv_traceset_number(traceset); for(i = 0 ; i < nb_trace ; i++) { @@ -1899,113 +3061,137 @@ 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), 17); - hooks = g_array_set_size(hooks, 17); // Max possible number of hooks. - hn = 0; + hooks = g_array_sized_new(FALSE, FALSE, sizeof(LttvTraceHook), 19); + hooks = g_array_set_size(hooks, 19); // Max possible number of hooks. + hn = 0; ret = lttv_trace_find_hook(ts->parent.t, LTT_FACILITY_KERNEL_ARCH, LTT_EVENT_SYSCALL_ENTRY, LTT_FIELD_SYSCALL_ID, 0, 0, syscall_entry, NULL, &g_array_index(hooks, LttvTraceHook, hn++)); - if(ret) hn--; + if(ret) hn--; ret = lttv_trace_find_hook(ts->parent.t, LTT_FACILITY_KERNEL_ARCH, LTT_EVENT_SYSCALL_EXIT, 0, 0, 0, syscall_exit, NULL, &g_array_index(hooks, LttvTraceHook, hn++)); - if(ret) hn--; + if(ret) hn--; ret = lttv_trace_find_hook(ts->parent.t, - LTT_FACILITY_KERNEL, LTT_EVENT_TRAP_ENTRY, + LTT_FACILITY_KERNEL_ARCH, LTT_EVENT_TRAP_ENTRY, LTT_FIELD_TRAP_ID, 0, 0, trap_entry, NULL, &g_array_index(hooks, LttvTraceHook, hn++)); - if(ret) hn--; + if(ret) hn--; ret = lttv_trace_find_hook(ts->parent.t, - LTT_FACILITY_KERNEL, LTT_EVENT_TRAP_EXIT, + LTT_FACILITY_KERNEL_ARCH, LTT_EVENT_TRAP_EXIT, 0, 0, 0, trap_exit, NULL, &g_array_index(hooks, LttvTraceHook, hn++)); - if(ret) hn--; + if(ret) hn--; ret = lttv_trace_find_hook(ts->parent.t, LTT_FACILITY_KERNEL, LTT_EVENT_IRQ_ENTRY, LTT_FIELD_IRQ_ID, 0, 0, irq_entry, NULL, &g_array_index(hooks, LttvTraceHook, hn++)); - if(ret) hn--; + if(ret) hn--; ret = lttv_trace_find_hook(ts->parent.t, LTT_FACILITY_KERNEL, LTT_EVENT_IRQ_EXIT, 0, 0, 0, irq_exit, NULL, &g_array_index(hooks, LttvTraceHook, hn++)); - if(ret) hn--; + if(ret) hn--; 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, hn++)); - if(ret) hn--; + if(ret) hn--; 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, hn++)); - if(ret) hn--; + if(ret) hn--; ret = lttv_trace_find_hook(ts->parent.t, - LTT_FACILITY_PROCESS, LTT_EVENT_SCHEDCHANGE, - LTT_FIELD_OUT, LTT_FIELD_IN, LTT_FIELD_OUT_STATE, + LTT_FACILITY_KERNEL, LTT_EVENT_SCHED_SCHEDULE, + LTT_FIELD_PREV_PID, LTT_FIELD_NEXT_PID, LTT_FIELD_PREV_STATE, schedchange, NULL, &g_array_index(hooks, LttvTraceHook, hn++)); - if(ret) hn--; + if(ret) hn--; ret = lttv_trace_find_hook(ts->parent.t, - LTT_FACILITY_PROCESS, LTT_EVENT_FORK, - LTT_FIELD_PARENT_PID, LTT_FIELD_CHILD_PID, 0, + LTT_FACILITY_KERNEL, LTT_EVENT_PROCESS_FORK, + LTT_FIELD_PARENT_PID, LTT_FIELD_CHILD_PID, LTT_FIELD_CHILD_TGID, process_fork, NULL, &g_array_index(hooks, LttvTraceHook, hn++)); - if(ret) hn--; + if(ret) hn--; ret = lttv_trace_find_hook(ts->parent.t, - LTT_FACILITY_PROCESS, LTT_EVENT_KERNEL_THREAD, + LTT_FACILITY_KERNEL_ARCH, LTT_EVENT_KTHREAD_CREATE, LTT_FIELD_PID, 0, 0, process_kernel_thread, NULL, &g_array_index(hooks, LttvTraceHook, - hn++)); - if(ret) hn--; + hn++)); + if(ret) hn--; ret = lttv_trace_find_hook(ts->parent.t, - LTT_FACILITY_PROCESS, LTT_EVENT_EXIT, + LTT_FACILITY_KERNEL, LTT_EVENT_PROCESS_EXIT, LTT_FIELD_PID, 0, 0, process_exit, NULL, &g_array_index(hooks, LttvTraceHook, hn++)); - if(ret) hn--; + if(ret) hn--; ret = lttv_trace_find_hook(ts->parent.t, - LTT_FACILITY_PROCESS, LTT_EVENT_FREE, + LTT_FACILITY_KERNEL, LTT_EVENT_PROCESS_FREE, LTT_FIELD_PID, 0, 0, process_free, NULL, &g_array_index(hooks, LttvTraceHook, hn++)); - if(ret) hn--; + if(ret) hn--; 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, hn++)); - if(ret) hn--; + if(ret) hn--; + + ret = lttv_trace_find_hook(ts->parent.t, + LTT_FACILITY_USER_GENERIC, LTT_EVENT_THREAD_BRAND, + LTT_FIELD_NAME, 0, 0, + thread_brand, NULL, &g_array_index(hooks, LttvTraceHook, hn++)); + if(ret) hn--; /* statedump-related hooks */ ret = lttv_trace_find_hook(ts->parent.t, - LTT_FACILITY_STATEDUMP, LTT_EVENT_ENUM_PROCESS_STATE, + LTT_FACILITY_LIST, LTT_EVENT_PROCESS_STATE, LTT_FIELD_PID, LTT_FIELD_PARENT_PID, LTT_FIELD_NAME, enum_process_state, NULL, &g_array_index(hooks, LttvTraceHook, hn++)); - if(ret) hn--; + if(ret) hn--; + + ret = lttv_trace_find_hook(ts->parent.t, + LTT_FACILITY_LIST, LTT_EVENT_STATEDUMP_END, + 0, 0, 0, + statedump_end, NULL, &g_array_index(hooks, LttvTraceHook, hn++)); + if(ret) hn--; + + ret = lttv_trace_find_hook(ts->parent.t, + LTT_FACILITY_BLOCK, LTT_EVENT_REQUEST_ISSUE, + LTT_FIELD_MAJOR, LTT_FIELD_MINOR, LTT_FIELD_OPERATION, + bdev_request_issue, NULL, &g_array_index(hooks, LttvTraceHook, hn++)); + if(ret) hn--; + + ret = lttv_trace_find_hook(ts->parent.t, + LTT_FACILITY_BLOCK, LTT_EVENT_REQUEST_COMPLETE, + LTT_FIELD_MAJOR, LTT_FIELD_MINOR, LTT_FIELD_OPERATION, + bdev_request_complete, NULL, &g_array_index(hooks, LttvTraceHook, hn++)); + if(ret) hn--; ret = lttv_trace_find_hook(ts->parent.t, LTT_FACILITY_USER_GENERIC, LTT_EVENT_FUNCTION_ENTRY, LTT_FIELD_THIS_FN, LTT_FIELD_CALL_SITE, 0, function_entry, NULL, &g_array_index(hooks, LttvTraceHook, hn++)); - if(ret) hn--; + if(ret) hn--; ret = lttv_trace_find_hook(ts->parent.t, LTT_FACILITY_USER_GENERIC, LTT_EVENT_FUNCTION_EXIT, LTT_FIELD_THIS_FN, LTT_FIELD_CALL_SITE, 0, function_exit, NULL, &g_array_index(hooks, LttvTraceHook, hn++)); - if(ret) hn--; + if(ret) hn--; hooks = g_array_set_size(hooks, hn); @@ -2065,6 +3251,7 @@ void lttv_state_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_attribute_find(ts->parent.a, LTTV_STATE_HOOKS, LTTV_POINTER, &val); hooks = *(val.v_pointer); @@ -2149,7 +3336,7 @@ static gboolean state_save_after_trace_hook(void *hook_data, void *call_data) guint lttv_state_current_cpu(LttvTracefileState *tfs) { - return tfs->cpu; + return tfs->cpu; } @@ -2203,7 +3390,7 @@ static gboolean block_start(void *hook_data, void *call_data) lttv_state_save(tcs, saved_state_tree); tcs->nb_event = 0; g_debug("Saving state at time %lu.%lu", self->parent.timestamp.tv_sec, - self->parent.timestamp.tv_nsec); + self->parent.timestamp.tv_nsec); } *(tcs->max_time_state_recomputed_in_seek) = self->parent.timestamp; return FALSE; @@ -2252,9 +3439,9 @@ void lttv_state_save_add_event_hooks(LttvTracesetState *self) ts = (LttvTraceState *)self->parent.traces[i]; lttv_trace_find_hook(ts->parent.t, "core","block_start",NULL, - NULL, NULL, block_start, &hook_start); + NULL, NULL, block_start, &hook_start); lttv_trace_find_hook(ts->parent.t, "core","block_end",NULL, - NULL, NULL, block_end, &hook_end); + NULL, NULL, block_end, &hook_end); nb_tracefile = ts->parent.tracefiles->len; @@ -2263,9 +3450,9 @@ void lttv_state_save_add_event_hooks(LttvTracesetState *self) 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); } } } @@ -2288,6 +3475,8 @@ void lttv_state_save_add_event_hooks(LttvTracesetState *self) ts = (LttvTraceState *)self->parent.traces[i]; nb_tracefile = ts->parent.tracefiles->len; + if(ts->has_precomputed_states) continue; + guint *event_count = g_new(guint, 1); *event_count = 0; @@ -2336,10 +3525,10 @@ void lttv_state_save_remove_event_hooks(LttvTracesetState *self) 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); + NULL, NULL, block_start, &hook_start); lttv_trace_find_hook(ts->parent.t, "core","block_end",NULL, - NULL, NULL, block_end, &hook_end); + NULL, NULL, block_end, &hook_end); nb_tracefile = ts->parent.tracefiles->len; @@ -2385,6 +3574,8 @@ void lttv_state_save_remove_event_hooks(LttvTracesetState *self) ts = (LttvTraceState *)self->parent.traces[i]; nb_tracefile = ts->parent.tracefiles->len; + if(ts->has_precomputed_states) continue; + guint *event_count = NULL; for(j = 0 ; j < nb_tracefile ; j++) { @@ -2425,7 +3616,7 @@ void lttv_state_traceset_seek_time_closest(LttvTracesetState *self, LttTime t) LttvAttributeName name; - gboolean is_named; + gboolean is_named; LttvAttribute *saved_states_tree, *saved_state_tree, *closest_tree; @@ -2448,7 +3639,7 @@ void lttv_state_traceset_seek_time_closest(LttvTracesetState *self, LttTime t) mid_pos = max_pos / 2; while(min_pos < max_pos) { type = lttv_attribute_get(saved_states_tree, mid_pos, &name, &value, - &is_named); + &is_named); g_assert(type == LTTV_GOBJECT); saved_state_tree = *((LttvAttribute **)(value.v_gobject)); type = lttv_attribute_get_by_name(saved_state_tree, LTTV_STATE_TIME, @@ -2641,6 +3832,7 @@ lttv_tracefile_state_get_type(void) static void module_init() { LTTV_STATE_UNNAMED = g_quark_from_string("UNNAMED"); + LTTV_STATE_UNBRANDED = g_quark_from_string("UNBRANDED"); LTTV_STATE_MODE_UNKNOWN = g_quark_from_string("MODE_UNKNOWN"); LTTV_STATE_USER_MODE = g_quark_from_string("USER_MODE"); LTTV_STATE_SYSCALL = g_quark_from_string("SYSCALL"); @@ -2656,8 +3848,8 @@ static void module_init() LTTV_STATE_WAIT = g_quark_from_string("WAIT"); LTTV_STATE_RUN = g_quark_from_string("RUN"); LTTV_STATE_DEAD = g_quark_from_string("DEAD"); - LTTV_STATE_USER_THREAD = g_quark_from_string("USER_THREAD"); - LTTV_STATE_KERNEL_THREAD = g_quark_from_string("KERNEL_THREAD"); + LTTV_STATE_USER_THREAD = g_quark_from_string("USER_THREAD"); + LTTV_STATE_KERNEL_THREAD = g_quark_from_string("KERNEL_THREAD"); LTTV_STATE_TRACEFILES = g_quark_from_string("tracefiles"); LTTV_STATE_PROCESSES = g_quark_from_string("processes"); LTTV_STATE_PROCESS = g_quark_from_string("process"); @@ -2670,14 +3862,17 @@ 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"); + LTTV_STATE_RESOURCE_CPUS = g_quark_from_string("cpu resource states"); + LTTV_STATE_RESOURCE_IRQS = g_quark_from_string("irq resource states"); + LTTV_STATE_RESOURCE_BLKDEVS = g_quark_from_string("blkdevs resource states"); 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_FACILITY_STATEDUMP = g_quark_from_string("statedump"); + LTT_FACILITY_LIST = g_quark_from_string("list"); LTT_FACILITY_USER_GENERIC = g_quark_from_string("user_generic"); + LTT_FACILITY_BLOCK = g_quark_from_string("block"); LTT_EVENT_SYSCALL_ENTRY = g_quark_from_string("syscall_entry"); @@ -2688,27 +3883,33 @@ static void module_init() 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_KERNEL_THREAD = g_quark_from_string("kernel_thread"); - LTT_EVENT_EXIT = g_quark_from_string("exit"); - LTT_EVENT_FREE = g_quark_from_string("free"); + LTT_EVENT_SCHED_SCHEDULE = g_quark_from_string("sched_schedule"); + LTT_EVENT_PROCESS_FORK = g_quark_from_string("process_fork"); + LTT_EVENT_KTHREAD_CREATE = g_quark_from_string("kthread_create"); + LTT_EVENT_PROCESS_EXIT = g_quark_from_string("process_exit"); + LTT_EVENT_PROCESS_FREE = g_quark_from_string("process_free"); LTT_EVENT_EXEC = g_quark_from_string("exec"); - LTT_EVENT_ENUM_PROCESS_STATE = g_quark_from_string("enumerate_process_state"); + LTT_EVENT_PROCESS_STATE = g_quark_from_string("process_state"); + LTT_EVENT_STATEDUMP_END = g_quark_from_string("statedump_end"); LTT_EVENT_FUNCTION_ENTRY = g_quark_from_string("function_entry"); LTT_EVENT_FUNCTION_EXIT = g_quark_from_string("function_exit"); + LTT_EVENT_THREAD_BRAND = g_quark_from_string("thread_brand"); + LTT_EVENT_REQUEST_ISSUE = g_quark_from_string("_blk_request_issue"); + LTT_EVENT_REQUEST_COMPLETE = g_quark_from_string("_blk_request_complete"); 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_PREV_PID = g_quark_from_string("prev_pid"); + LTT_FIELD_NEXT_PID = g_quark_from_string("next_pid"); + LTT_FIELD_PREV_STATE = g_quark_from_string("prev_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_TGID = g_quark_from_string("tgid"); + LTT_FIELD_CHILD_TGID = g_quark_from_string("child_tgid"); LTT_FIELD_FILENAME = g_quark_from_string("filename"); LTT_FIELD_NAME = g_quark_from_string("name"); LTT_FIELD_TYPE = g_quark_from_string("type"); @@ -2717,7 +3918,24 @@ static void module_init() LTT_FIELD_STATUS = g_quark_from_string("status"); LTT_FIELD_THIS_FN = g_quark_from_string("this_fn"); LTT_FIELD_CALL_SITE = g_quark_from_string("call_site"); + LTT_FIELD_MAJOR = g_quark_from_string("major"); + LTT_FIELD_MINOR = g_quark_from_string("minor"); + LTT_FIELD_OPERATION = g_quark_from_string("direction"); + LTTV_CPU_UNKNOWN = g_quark_from_string("unknown"); + LTTV_CPU_IDLE = g_quark_from_string("idle"); + LTTV_CPU_BUSY = g_quark_from_string("busy"); + LTTV_CPU_IRQ = g_quark_from_string("irq"); + LTTV_CPU_TRAP = g_quark_from_string("trap"); + + LTTV_IRQ_UNKNOWN = g_quark_from_string("unknown"); + LTTV_IRQ_IDLE = g_quark_from_string("idle"); + LTTV_IRQ_BUSY = g_quark_from_string("busy"); + + LTTV_BDEV_UNKNOWN = g_quark_from_string("unknown"); + LTTV_BDEV_IDLE = g_quark_from_string("idle"); + LTTV_BDEV_BUSY_READING = g_quark_from_string("busy_reading"); + LTTV_BDEV_BUSY_WRITING = g_quark_from_string("busy_writing"); } static void module_destroy()