--- /dev/null
+/* This file is part of the Linux Trace Toolkit viewer
+ * Copyright (C) 2003-2004 Michel Dagenais
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License Version 2 as
+ * published by the Free Software Foundation;
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ * MA 02111-1307, USA.
+ */
+
+#define _GNU_SOURCE
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <glib.h>
+#include <lttv/lttv.h>
+#include <lttv/module.h>
+#include <lttv/state.h>
+#include <ltt/trace.h>
+#include <ltt/event.h>
+#include <ltt/ltt.h>
+#include <ltt/marker-desc.h>
+#include <stdio.h>
+#include <string.h>
+#include <ltt/ltt-private.h>
+#include <inttypes.h>
+
+/* 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
+
+/* Channel Quarks */
+
+GQuark
+ LTT_CHANNEL_FD_STATE,
+ LTT_CHANNEL_GLOBAL_STATE,
+ LTT_CHANNEL_IRQ_STATE,
+ LTT_CHANNEL_MODULE_STATE,
+ LTT_CHANNEL_NETIF_STATE,
+ LTT_CHANNEL_SOFTIRQ_STATE,
+ LTT_CHANNEL_SWAP_STATE,
+ LTT_CHANNEL_SYSCALL_STATE,
+ LTT_CHANNEL_TASK_STATE,
+ LTT_CHANNEL_VM_STATE,
+ LTT_CHANNEL_KPROBE_STATE,
+ LTT_CHANNEL_FS,
+ LTT_CHANNEL_KERNEL,
+ LTT_CHANNEL_MM,
+ LTT_CHANNEL_USERSPACE,
+ LTT_CHANNEL_BLOCK;
+
+/* Events Quarks */
+
+GQuark
+ LTT_EVENT_SYSCALL_ENTRY,
+ LTT_EVENT_SYSCALL_EXIT,
+ LTT_EVENT_PAGE_FAULT_NOSEM_ENTRY,
+ LTT_EVENT_PAGE_FAULT_NOSEM_EXIT,
+ LTT_EVENT_PAGE_FAULT_ENTRY,
+ LTT_EVENT_PAGE_FAULT_EXIT,
+ LTT_EVENT_TRAP_ENTRY,
+ LTT_EVENT_TRAP_EXIT,
+ LTT_EVENT_IRQ_ENTRY,
+ LTT_EVENT_IRQ_EXIT,
+ LTT_EVENT_SOFT_IRQ_RAISE,
+ LTT_EVENT_SOFT_IRQ_ENTRY,
+ LTT_EVENT_SOFT_IRQ_EXIT,
+ 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_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,
+ LTT_EVENT_LIST_INTERRUPT,
+ LTT_EVENT_SYS_CALL_TABLE,
+ LTT_EVENT_SOFTIRQ_VEC,
+ LTT_EVENT_KPROBE_TABLE,
+ LTT_EVENT_KPROBE;
+
+/* Fields Quarks */
+
+GQuark
+ LTT_FIELD_SYSCALL_ID,
+ LTT_FIELD_TRAP_ID,
+ LTT_FIELD_IRQ_ID,
+ LTT_FIELD_SOFT_IRQ_ID,
+ 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_MINOR,
+ LTT_FIELD_MAJOR,
+ LTT_FIELD_OPERATION,
+ LTT_FIELD_ACTION,
+ LTT_FIELD_ID,
+ LTT_FIELD_ADDRESS,
+ LTT_FIELD_SYMBOL,
+ LTT_FIELD_IP;
+
+LttvExecutionMode
+ LTTV_STATE_MODE_UNKNOWN,
+ LTTV_STATE_USER_MODE,
+ LTTV_STATE_SYSCALL,
+ LTTV_STATE_TRAP,
+ LTTV_STATE_IRQ,
+ LTTV_STATE_SOFT_IRQ;
+
+LttvExecutionSubmode
+ LTTV_STATE_SUBMODE_UNKNOWN,
+ LTTV_STATE_SUBMODE_NONE;
+
+LttvProcessStatus
+ LTTV_STATE_UNNAMED,
+ LTTV_STATE_WAIT_FORK,
+ LTTV_STATE_WAIT_CPU,
+ LTTV_STATE_EXIT,
+ LTTV_STATE_ZOMBIE,
+ LTTV_STATE_WAIT,
+ LTTV_STATE_RUN,
+ LTTV_STATE_DEAD;
+
+GQuark
+ LTTV_STATE_UNBRANDED;
+
+LttvProcessType
+ LTTV_STATE_USER_THREAD,
+ LTTV_STATE_KERNEL_THREAD;
+
+LttvCPUMode
+ LTTV_CPU_UNKNOWN,
+ LTTV_CPU_IDLE,
+ LTTV_CPU_BUSY,
+ LTTV_CPU_IRQ,
+ LTTV_CPU_SOFT_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,
+ LTTV_STATE_PROCESSES,
+ LTTV_STATE_PROCESS,
+ LTTV_STATE_RUNNING_PROCESS,
+ LTTV_STATE_EVENT,
+ LTTV_STATE_SAVED_STATES,
+ LTTV_STATE_SAVED_STATES_TIME,
+ LTTV_STATE_TIME,
+ LTTV_STATE_HOOKS,
+ LTTV_STATE_NAME_TABLES,
+ LTTV_STATE_TRACE_STATE_USE_COUNT,
+ LTTV_STATE_RESOURCE_CPUS,
+ LTTV_STATE_RESOURCE_CPUS_COUNT,
+ LTTV_STATE_RESOURCE_IRQS,
+ LTTV_STATE_RESOURCE_SOFT_IRQS,
+ LTTV_STATE_RESOURCE_TRAPS,
+ LTTV_STATE_RESOURCE_BLKDEVS;
+
+static void create_max_time(LttvTraceState *tcs);
+
+static void get_max_time(LttvTraceState *tcs);
+
+static void free_max_time(LttvTraceState *tcs);
+
+static void create_name_tables(LttvTraceState *tcs);
+
+static void get_name_tables(LttvTraceState *tcs);
+
+static void free_name_tables(LttvTraceState *tcs);
+
+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);
+
+
+#if (__SIZEOF_LONG__ == 4)
+guint guint64_hash(gconstpointer key)
+{
+ guint64 ukey = *(const guint64 *)key;
+
+ return (guint)ukey ^ (guint)(ukey >> 32);
+}
+
+gboolean guint64_equal(gconstpointer a, gconstpointer b)
+{
+ guint64 ua = *(const guint64 *)a;
+ guint64 ub = *(const guint64 *)b;
+
+ return ua == ub;
+}
+#endif
+
+void lttv_state_save(LttvTraceState *self, LttvAttribute *container)
+{
+ LTTV_TRACE_STATE_GET_CLASS(self)->state_save(self, container);
+}
+
+
+void lttv_state_restore(LttvTraceState *self, LttvAttribute *container)
+{
+ LTTV_TRACE_STATE_GET_CLASS(self)->state_restore(self, container);
+}
+
+
+void lttv_state_state_saved_free(LttvTraceState *self,
+ LttvAttribute *container)
+{
+ LTTV_TRACE_STATE_GET_CLASS(self)->state_saved_free(self, container);
+}
+
+
+guint process_hash(gconstpointer key)
+{
+ guint pid = ((const LttvProcessState *)key)->pid;
+ return (pid>>8 ^ pid>>4 ^ pid>>2 ^ pid) ;
+}
+
+
+/* If the hash table hash function is well distributed,
+ * the process_equal should compare different pid */
+gboolean process_equal(gconstpointer a, gconstpointer b)
+{
+ const LttvProcessState *process_a, *process_b;
+ gboolean ret = TRUE;
+
+ process_a = (const LttvProcessState *)a;
+ process_b = (const LttvProcessState *)b;
+
+ if(likely(process_a->pid != process_b->pid)) ret = FALSE;
+ else if(likely(process_a->pid == 0 &&
+ process_a->cpu != process_b->cpu)) ret = FALSE;
+
+ return ret;
+}
+
+static void delete_usertrace(gpointer key, gpointer value, gpointer user_data)
+{
+ 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);
+}
+
+gboolean rettrue(gpointer key, gpointer value, gpointer user_data)
+{
+ return TRUE;
+}
+
+static guint check_expand(nb, id)
+{
+ if(likely(nb > id))
+ return nb;
+ else
+ return max(id + 1, nb * 2);
+}
+
+static void expand_name_table(LttvTraceState *ts, GQuark **table,
+ guint nb, guint new_nb)
+{
+ /* Expand an incomplete table */
+ GQuark *old_table = *table;
+ *table = g_new(GQuark, new_nb);
+ memcpy(*table, old_table, nb * sizeof(GQuark));
+}
+
+static void fill_name_table(LttvTraceState *ts, GQuark *table, guint nb,
+ guint new_nb, const char *def_string)
+{
+ guint i;
+ GString *fe_name = g_string_new("");
+ for(i = nb; i < new_nb; i++) {
+ g_string_printf(fe_name, "%s %d", def_string, i);
+ table[i] = g_quark_from_string(fe_name->str);
+ }
+ g_string_free(fe_name, TRUE);
+}
+
+static void expand_syscall_table(LttvTraceState *ts, int id)
+{
+ guint new_nb = check_expand(ts->nb_syscalls, id);
+ if(likely(new_nb == ts->nb_syscalls))
+ return;
+ expand_name_table(ts, &ts->syscall_names, ts->nb_syscalls, new_nb);
+ fill_name_table(ts, ts->syscall_names, ts->nb_syscalls, new_nb, "syscall");
+ /* Update the table size */
+ ts->nb_syscalls = new_nb;
+}
+
+static void expand_kprobe_table(LttvTraceState *ts, guint64 ip, char *symbol)
+{
+#if (__SIZEOF_LONG__ == 4)
+ guint64 *ip_ptr = g_new(guint64, 1);
+ g_hash_table_insert(ts->kprobe_hash, ip_ptr,
+ (gpointer)(glong)g_quark_from_string(symbol));
+#else
+ g_hash_table_insert(ts->kprobe_hash, (gpointer)ip,
+ (gpointer)(glong)g_quark_from_string(symbol));
+#endif
+}
+
+static void expand_trap_table(LttvTraceState *ts, int id)
+{
+ guint new_nb = check_expand(ts->nb_traps, id);
+ guint i;
+ if(likely(new_nb == ts->nb_traps))
+ return;
+ expand_name_table(ts, &ts->trap_names, ts->nb_traps, new_nb);
+ fill_name_table(ts, ts->trap_names, ts->nb_traps, new_nb, "trap");
+ /* Update the table size */
+ ts->nb_traps = new_nb;
+
+ LttvTrapState *old_table = ts->trap_states;
+ ts->trap_states = g_new(LttvTrapState, new_nb);
+ memcpy(ts->trap_states, old_table,
+ ts->nb_traps * sizeof(LttvTrapState));
+ for(i = ts->nb_traps; i < new_nb; i++)
+ ts->trap_states[i].running = 0;
+}
+
+static void expand_irq_table(LttvTraceState *ts, int id)
+{
+ guint new_nb = check_expand(ts->nb_irqs, id);
+ guint i;
+ if(likely(new_nb == ts->nb_irqs))
+ return;
+ expand_name_table(ts, &ts->irq_names, ts->nb_irqs, new_nb);
+ fill_name_table(ts, ts->irq_names, ts->nb_irqs, new_nb, "irq");
+
+ LttvIRQState *old_table = ts->irq_states;
+ ts->irq_states = g_new(LttvIRQState, new_nb);
+ memcpy(ts->irq_states, old_table, ts->nb_irqs * sizeof(LttvIRQState));
+ for(i = ts->nb_irqs; i < new_nb; i++) {
+ ts->irq_states[i].mode_stack = g_array_new(FALSE, FALSE, sizeof(LttvIRQMode));
+ }
+
+ /* Update the table size */
+ ts->nb_irqs = new_nb;
+}
+
+static void expand_soft_irq_table(LttvTraceState *ts, int id)
+{
+ guint new_nb = check_expand(ts->nb_soft_irqs, id);
+ guint i;
+ if(likely(new_nb == ts->nb_soft_irqs))
+ return;
+ expand_name_table(ts, &ts->soft_irq_names, ts->nb_soft_irqs, new_nb);
+ fill_name_table(ts, ts->soft_irq_names, ts->nb_soft_irqs, new_nb, "softirq");
+
+ LttvSoftIRQState *old_table = ts->soft_irq_states;
+ ts->soft_irq_states = g_new(LttvSoftIRQState, new_nb);
+ memcpy(ts->soft_irq_states, old_table,
+ ts->nb_soft_irqs * sizeof(LttvSoftIRQState));
+ for(i = ts->nb_soft_irqs; i < new_nb; i++)
+ ts->soft_irq_states[i].running = 0;
+
+ /* Update the table size */
+ ts->nb_soft_irqs = new_nb;
+}
+
+static void
+restore_init_state(LttvTraceState *self)
+{
+ guint i, nb_cpus, nb_irqs, nb_soft_irqs, nb_traps;
+
+ //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);
+ self->processes = g_hash_table_new(process_hash, process_equal);
+ self->usertraces = g_hash_table_new(g_direct_hash, g_direct_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);
+
+ 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;
+ nb_soft_irqs = self->nb_soft_irqs;
+ nb_traps = self->nb_traps;
+
+ /* Put the per cpu running_process to beginning state : process 0. */
+ for(i=0; i< nb_cpus; i++) {
+ 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);
+ if(self->cpu_states[i].irq_stack->len)
+ g_array_remove_range(self->cpu_states[i].irq_stack, 0, self->cpu_states[i].irq_stack->len);
+ if(self->cpu_states[i].softirq_stack->len)
+ g_array_remove_range(self->cpu_states[i].softirq_stack, 0, self->cpu_states[i].softirq_stack->len);
+ if(self->cpu_states[i].trap_stack->len)
+ g_array_remove_range(self->cpu_states[i].trap_stack, 0, self->cpu_states[i].trap_stack->len);
+ }
+ }
+
+ /* reset irq states */
+ for(i=0; i<nb_irqs; i++) {
+ if(self->irq_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 softirq states */
+ for(i=0; i<nb_soft_irqs; i++) {
+ self->soft_irq_states[i].pending = 0;
+ self->soft_irq_states[i].running = 0;
+ }
+
+ /* reset trap states */
+ for(i=0; i<nb_traps; i++) {
+ self->trap_states[i].running = 0;
+ }
+
+ /* reset bdev states */
+ g_hash_table_foreach(self->bdev_states, bdevstate_free_cb, NULL);
+ //g_hash_table_steal_all(self->bdev_states);
+ g_hash_table_foreach_steal(self->bdev_states, rettrue, NULL);
+
+#if 0
+ 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));
+ ltt_trace_time_span_get(self->parent.t, &tfcs->parent.timestamp, NULL);
+// tfcs->saved_position = 0;
+ tfcs->process = lttv_state_create_process(tfcs, NULL,0);
+ tfcs->process->state->s = LTTV_STATE_RUN;
+ tfcs->process->last_cpu = tfcs->cpu_name;
+ tfcs->process->last_cpu_index = ltt_tracefile_num(((LttvTracefileContext*)tfcs)->tf);
+ }
+#endif //0
+}
+
+//static LttTime time_zero = {0,0};
+
+static gint compare_usertraces(gconstpointer a, gconstpointer b,
+ gpointer user_data)
+{
+ const LttTime *t1 = (const LttTime *)a;
+ const LttTime *t2 = (const LttTime *)b;
+
+ return ltt_time_compare(*t1, *t2);
+}
+
+static void free_usertrace_key(gpointer data)
+{
+ g_free(data);
+}
+
+#define MAX_STRING_LEN 4096
+
+static void
+state_load_saved_states(LttvTraceState *tcs)
+{
+ FILE *fp;
+ GPtrArray *quarktable;
+ const 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; i<quarktable->len; 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, nb_cpu;
+ guint64 nb_irq;
+
+ LttvTraceContext *tc;
+
+ LttvTraceState *tcs;
+
+ LttvTracefileState *tfcs;
+
+ LttvAttributeValue v;
+
+ LTTV_TRACESET_CONTEXT_CLASS(g_type_class_peek(LTTV_TRACESET_CONTEXT_TYPE))->
+ init((LttvTracesetContext *)self, ts);
+
+ nb_trace = lttv_traceset_number(ts);
+ for(i = 0 ; i < nb_trace ; i++) {
+ tc = self->parent.traces[i];
+ tcs = LTTV_TRACE_STATE(tc);
+ tcs->save_interval = LTTV_STATE_SAVE_INTERVAL;
+ lttv_attribute_find(tcs->parent.t_a, LTTV_STATE_TRACE_STATE_USE_COUNT,
+ LTTV_UINT, &v);
+ (*v.v_uint)++;
+
+ if(*(v.v_uint) == 1) {
+ create_name_tables(tcs);
+ create_max_time(tcs);
+ }
+ get_name_tables(tcs);
+ 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*, nb_cpu);
+
+ /* init cpu resource stuff */
+ tcs->cpu_states = g_new(LttvCPUState, nb_cpu);
+ for(j = 0; j<nb_cpu; j++) {
+ tcs->cpu_states[j].mode_stack = g_array_new(FALSE, FALSE, sizeof(LttvCPUMode));
+ tcs->cpu_states[j].irq_stack = g_array_new(FALSE, FALSE, sizeof(gint));
+ tcs->cpu_states[j].softirq_stack = g_array_new(FALSE, FALSE, sizeof(gint));
+ tcs->cpu_states[j].trap_stack = g_array_new(FALSE, FALSE, sizeof(gint));
+ g_assert(tcs->cpu_states[j].mode_stack != NULL);
+ }
+
+ /* init irq resource stuff */
+ tcs->irq_states = g_new(LttvIRQState, nb_irq);
+ for(j = 0; j<nb_irq; j++) {
+ tcs->irq_states[j].mode_stack = g_array_new(FALSE, FALSE, sizeof(LttvIRQMode));
+ g_assert(tcs->irq_states[j].mode_stack != NULL);
+ }
+
+ /* init soft irq stuff */
+ /* the kernel has a statically fixed max of 32 softirqs */
+ tcs->soft_irq_states = g_new(LttvSoftIRQState, tcs->nb_soft_irqs);
+
+ /* init trap stuff */
+ tcs->trap_states = g_new(LttvTrapState, tcs->nb_traps);
+
+ /* 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);
+ 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,
+ GUINT_TO_POINTER(tid));
+ if(!usertrace_tree) {
+ usertrace_tree = g_tree_new_full(compare_usertraces,
+ NULL, free_usertrace_key, NULL);
+ g_hash_table_insert(tcs->usertraces,
+ GUINT_TO_POINTER(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);
+ }
+}
+
+static void
+fini(LttvTracesetState *self)
+{
+ guint i, nb_trace;
+
+ LttvTraceState *tcs;
+
+ //LttvTracefileState *tfcs;
+
+ LttvAttributeValue v;
+
+ nb_trace = lttv_traceset_number(LTTV_TRACESET_CONTEXT(self)->ts);
+ for(i = 0 ; i < nb_trace ; i++) {
+ tcs = (LttvTraceState *)(LTTV_TRACESET_CONTEXT(self)->traces[i]);
+ lttv_attribute_find(tcs->parent.t_a, LTTV_STATE_TRACE_STATE_USE_COUNT,
+ LTTV_UINT, &v);
+
+ g_assert(*(v.v_uint) != 0);
+ (*v.v_uint)--;
+
+ if(*(v.v_uint) == 0) {
+ free_name_tables(tcs);
+ free_max_time(tcs);
+ free_saved_state(tcs);
+ }
+ g_free(tcs->running_process);
+ tcs->running_process = NULL;
+ lttv_state_free_process_table(tcs->processes);
+ lttv_state_free_usertraces(tcs->usertraces);
+ tcs->processes = NULL;
+ tcs->usertraces = NULL;
+ }
+ LTTV_TRACESET_CONTEXT_CLASS(g_type_class_peek(LTTV_TRACESET_CONTEXT_TYPE))->
+ fini((LttvTracesetContext *)self);
+}
+
+
+static LttvTracesetContext *
+new_traceset_context(LttvTracesetContext *self)
+{
+ return LTTV_TRACESET_CONTEXT(g_object_new(LTTV_TRACESET_STATE_TYPE, NULL));
+}
+
+
+static LttvTraceContext *
+new_trace_context(LttvTracesetContext *self)
+{
+ return LTTV_TRACE_CONTEXT(g_object_new(LTTV_TRACE_STATE_TYPE, NULL));
+}
+
+
+static LttvTracefileContext *
+new_tracefile_context(LttvTracesetContext *self)
+{
+ return LTTV_TRACEFILE_CONTEXT(g_object_new(LTTV_TRACEFILE_STATE_TYPE, NULL));
+}
+
+
+/* Write the process state of the trace */
+
+static void write_process_state(gpointer key, gpointer value,
+ gpointer user_data)
+{
+ LttvProcessState *process;
+
+ LttvExecutionState *es;
+
+ FILE *fp = (FILE *)user_data;
+
+ guint i;
+ guint64 address;
+
+ process = (LttvProcessState *)value;
+ fprintf(fp,
+" <PROCESS CORE=%p PID=%u TGID=%u PPID=%u TYPE=\"%s\" CTIME_S=%lu CTIME_NS=%lu ITIME_S=%lu ITIME_NS=%lu NAME=\"%s\" BRAND=\"%s\" CPU=\"%u\" FREE_EVENTS=\"%u\">\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, process->free_events);
+
+ for(i = 0 ; i < process->execution_stack->len; i++) {
+ es = &g_array_index(process->execution_stack, LttvExecutionState, i);
+ fprintf(fp, " <ES MODE=\"%s\" SUBMODE=\"%s\" ENTRY_S=%lu ENTRY_NS=%lu",
+ 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, " <USER_STACK ADDRESS=\"%" PRIu64 "\"/>\n",
+ address);
+ }
+
+ if(process->usertrace) {
+ fprintf(fp, " <USERTRACE NAME=\"%s\" CPU=%u\n/>",
+ g_quark_to_string(process->usertrace->tracefile_name),
+ process->usertrace->cpu);
+ }
+
+
+ fprintf(fp, " </PROCESS>\n");
+}
+
+
+void lttv_state_write(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,"<PROCESS_STATE TIME_S=%lu TIME_NS=%lu>\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<nb_cpus;i++) {
+ fprintf(fp," <CPU NUM=%u RUNNING_PROCESS=%u>\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, " <TRACEFILE TIMESTAMP_S=%lu TIMESTAMP_NS=%lu",
+ tfcs->parent.timestamp.tv_sec,
+ tfcs->parent.timestamp.tv_nsec);
+ LttEvent *e = ltt_tracefile_get_event(tfcs->parent.tf);
+ if(e == NULL) fprintf(fp,"/>\n");
+ else {
+ ltt_event_position(e, ep);
+ ltt_event_position_get(ep, &tf, &nb_block, &offset, &tsc);
+ fprintf(fp, " BLOCK=%u OFFSET=%u TSC=%" PRIu64 "/>\n", nb_block, offset,
+ tsc);
+ }
+ }
+ g_free(ep);
+ fprintf(fp,"</PROCESS_STATE>\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->free_events, sizeof(process->free_events), 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,
+" <PROCESS CORE=%p PID=%u TGID=%u PPID=%u TYPE=\"%s\" CTIME_S=%lu CTIME_NS=%lu ITIME_S=%lu ITIME_NS=%lu NAME=\"%s\" BRAND=\"%s\" CPU=\"%u\" PROCESS_TYPE=%u>\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, " <ES MODE=\"%s\" SUBMODE=\"%s\" ENTRY_S=%lu ENTRY_NS=%lu",
+ 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));
+#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, " <USER_STACK ADDRESS=\"%llu\"/>\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, " <USERTRACE NAME=\"%s\" CPU=%u\n/>",
+ 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,"<PROCESS_STATE TIME_S=%lu TIME_NS=%lu>\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;i<nb_cpus;i++) {
+ fputc(HDR_CPU, fp);
+ fwrite(&i, sizeof(i), 1, fp); /* cpu number */
+ fwrite(&self->running_process[i]->pid,
+ sizeof(self->running_process[i]->pid), 1, fp);
+ //fprintf(fp," <CPU NUM=%u RUNNING_PROCESS=%u>\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, " <TRACEFILE TIMESTAMP_S=%lu TIMESTAMP_NS=%lu",
+ // tfcs->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;
+
+ guint64 *address;
+
+ /* 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.free_events, sizeof(tmp.free_events), 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));
+ process->free_events = tmp.free_events;
+
+ 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;i<nb_cpus;i++) {
+ int cpu_num;
+ hdr = fgetc(fp);
+ g_assert(hdr == HDR_CPU);
+ fread(&cpu_num, sizeof(cpu_num), 1, fp); /* cpu number */
+ g_assert(i == cpu_num);
+ fread(&self->running_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, " <TRACEFILE TIMESTAMP_S=%lu TIMESTAMP_NS=%lu",
+ // tfcs->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->parent, ltt_time_zero);
+ return;
+}
+
+
+
+/* Copy each process from an existing hash table to a new one */
+
+static void copy_process_state(gpointer key, gpointer value,gpointer user_data)
+{
+ LttvProcessState *process, *new_process;
+
+ GHashTable *new_processes = (GHashTable *)user_data;
+
+ guint i;
+
+ process = (LttvProcessState *)value;
+ new_process = g_new(LttvProcessState, 1);
+ *new_process = *process;
+ new_process->execution_stack = g_array_sized_new(FALSE, FALSE,
+ sizeof(LttvExecutionState), PREALLOCATED_EXECUTION_STACK);
+ new_process->execution_stack =
+ g_array_set_size(new_process->execution_stack,
+ process->execution_stack->len);
+ for(i = 0 ; i < process->execution_stack->len; i++) {
+ g_array_index(new_process->execution_stack, LttvExecutionState, i) =
+ g_array_index(process->execution_stack, LttvExecutionState, i);
+ }
+ new_process->state = &g_array_index(new_process->execution_stack,
+ LttvExecutionState, new_process->execution_stack->len - 1);
+ new_process->user_stack = g_array_sized_new(FALSE, FALSE,
+ sizeof(guint64), 0);
+ new_process->user_stack =
+ g_array_set_size(new_process->user_stack,
+ process->user_stack->len);
+ for(i = 0 ; i < process->user_stack->len; i++) {
+ g_array_index(new_process->user_stack, guint64, i) =
+ g_array_index(process->user_stack, guint64, i);
+ }
+ new_process->current_function = process->current_function;
+ g_hash_table_insert(new_processes, new_process, new_process);
+}
+
+
+static GHashTable *lttv_state_copy_process_table(GHashTable *processes)
+{
+ GHashTable *new_processes = g_hash_table_new(process_hash, process_equal);
+
+ g_hash_table_foreach(processes, copy_process_state, new_processes);
+ return new_processes;
+}
+
+static LttvCPUState *lttv_state_copy_cpu_states(LttvCPUState *states, guint n)
+{
+ guint i,j;
+ LttvCPUState *retval;
+
+ retval = g_new(LttvCPUState, n);
+
+ for(i=0; i<n; i++) {
+ retval[i].irq_stack = g_array_new(FALSE, FALSE, sizeof(gint));
+ g_array_set_size(retval[i].irq_stack, states[i].irq_stack->len);
+ for(j=0; j<states[i].irq_stack->len; j++) {
+ g_array_index(retval[i].irq_stack, gint, j) = g_array_index(states[i].irq_stack, gint, j);
+ }
+
+ retval[i].softirq_stack = g_array_new(FALSE, FALSE, sizeof(gint));
+ g_array_set_size(retval[i].softirq_stack, states[i].softirq_stack->len);
+ for(j=0; j<states[i].softirq_stack->len; j++) {
+ g_array_index(retval[i].softirq_stack, gint, j) = g_array_index(states[i].softirq_stack, gint, j);
+ }
+
+ retval[i].trap_stack = g_array_new(FALSE, FALSE, sizeof(gint));
+ g_array_set_size(retval[i].trap_stack, states[i].trap_stack->len);
+ for(j=0; j<states[i].trap_stack->len; j++) {
+ g_array_index(retval[i].trap_stack, gint, j) = g_array_index(states[i].trap_stack, gint, j);
+ }
+
+ retval[i].mode_stack = g_array_new(FALSE, FALSE, sizeof(LttvCPUMode));
+ g_array_set_size(retval[i].mode_stack, states[i].mode_stack->len);
+ for(j=0; j<states[i].mode_stack->len; 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; i<n; i++) {
+ g_array_free(states[i].mode_stack, TRUE);
+ g_array_free(states[i].irq_stack, TRUE);
+ g_array_free(states[i].softirq_stack, TRUE);
+ g_array_free(states[i].trap_stack, TRUE);
+ }
+
+ g_free(states);
+}
+
+static LttvIRQState *lttv_state_copy_irq_states(LttvIRQState *states, guint n)
+{
+ guint i,j;
+ LttvIRQState *retval;
+
+ retval = g_new(LttvIRQState, n);
+
+ for(i=0; i<n; i++) {
+ retval[i].mode_stack = g_array_new(FALSE, FALSE, sizeof(LttvIRQMode));
+ g_array_set_size(retval[i].mode_stack, states[i].mode_stack->len);
+ for(j=0; j<states[i].mode_stack->len; 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; i<n; i++) {
+ g_array_free(states[i].mode_stack, TRUE);
+ }
+
+ g_free(states);
+}
+
+static LttvSoftIRQState *lttv_state_copy_soft_irq_states(LttvSoftIRQState *states, guint n)
+{
+ guint i;
+ LttvSoftIRQState *retval;
+
+ retval = g_new(LttvSoftIRQState, n);
+
+ for(i=0; i<n; i++) {
+ retval[i].pending = states[i].pending;
+ retval[i].running = states[i].running;
+ }
+
+ return retval;
+}
+
+static void lttv_state_free_soft_irq_states(LttvSoftIRQState *states, guint n)
+{
+ g_free(states);
+}
+
+static LttvTrapState *lttv_state_copy_trap_states(LttvTrapState *states, guint n)
+{
+ guint i;
+ LttvTrapState *retval;
+
+ retval = g_new(LttvTrapState, n);
+
+ for(i=0; i<n; i++) {
+ retval[i].running = states[i].running;
+ }
+
+ return retval;
+}
+
+static void lttv_state_free_trap_states(LttvTrapState *states, guint n)
+{
+ g_free(states);
+}
+
+/* bdevstate stuff */
+
+static LttvBdevState *get_hashed_bdevstate(LttvTraceState *ts, guint16 devcode)
+{
+ gint devcode_gint = devcode;
+ gpointer bdev = g_hash_table_lookup(ts->bdev_states, &devcode_gint);
+ if(bdev == NULL) {
+ LttvBdevState *bdevstate = g_new(LttvBdevState, 1);
+ bdevstate->mode_stack = g_array_new(FALSE, FALSE, sizeof(GQuark));
+
+ gint * key = g_new(gint, 1);
+ *key = devcode;
+ g_hash_table_insert(ts->bdev_states, key, bdevstate);
+
+ bdev = bdevstate;
+ }
+
+ return bdev;
+}
+
+static LttvBdevState *bdevstate_new(void)
+{
+ LttvBdevState *retval;
+ retval = g_new(LttvBdevState, 1);
+ retval->mode_stack = g_array_new(FALSE, FALSE, sizeof(GQuark));
+
+ return retval;
+}
+
+static void bdevstate_free(LttvBdevState *bds)
+{
+ g_array_free(bds->mode_stack, TRUE);
+ 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);
+
+ return retval;
+}
+
+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(bds);
+
+ 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
+ one entry per tracefile. Each tracefile has a "process" member pointing
+ to the current process and a "position" member storing the tracefile
+ position (needed to seek to the current "next" event. */
+
+static void state_save(LttvTraceState *self, LttvAttribute *container)
+{
+ guint i, nb_tracefile, nb_cpus, nb_irqs, nb_soft_irqs, nb_traps;
+
+ LttvTracefileState *tfcs;
+
+ LttvAttribute *tracefiles_tree, *tracefile_tree;
+
+ guint *running_process;
+
+ LttvAttributeValue value;
+
+ LttEventPosition *ep;
+
+ tracefiles_tree = lttv_attribute_find_subdir(container,
+ LTTV_STATE_TRACEFILES);
+
+ value = lttv_attribute_add(container, LTTV_STATE_PROCESSES,
+ LTTV_POINTER);
+ *(value.v_pointer) = lttv_state_copy_process_table(self->processes);
+
+ /* 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;i<nb_cpus;i++) {
+ running_process[i] = self->running_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++) {
+ tfcs =
+ LTTV_TRACEFILE_STATE(g_array_index(self->parent.tracefiles,
+ LttvTracefileContext*, i));
+ tracefile_tree = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL);
+ value = lttv_attribute_add(tracefiles_tree, i,
+ LTTV_GOBJECT);
+ *(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 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);
+ ep = ltt_event_position_new();
+ ltt_event_position(e, ep);
+ *(value.v_pointer) = ep;
+
+ guint nb_block, offset;
+ guint64 tsc;
+ LttTracefile *tf;
+ ltt_event_position_get(ep, &tf, &nb_block, &offset, &tsc);
+ g_info("Block %u offset %u tsc %" PRIu64 " time %lu.%lu", nb_block, offset,
+ tsc,
+ tfcs->parent.timestamp.tv_sec, tfcs->parent.timestamp.tv_nsec);
+ }
+ }
+
+ /* save the cpu state */
+ {
+ value = lttv_attribute_add(container, LTTV_STATE_RESOURCE_CPUS_COUNT,
+ LTTV_UINT);
+ *(value.v_uint) = 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;
+ {
+ 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 soft irq state */
+ nb_soft_irqs = self->nb_soft_irqs;
+ {
+ value = lttv_attribute_add(container, LTTV_STATE_RESOURCE_SOFT_IRQS,
+ LTTV_POINTER);
+ *(value.v_pointer) = lttv_state_copy_soft_irq_states(self->soft_irq_states, nb_soft_irqs);
+ }
+
+ /* save the trap state */
+ nb_traps = self->nb_traps;
+ {
+ value = lttv_attribute_add(container, LTTV_STATE_RESOURCE_TRAPS,
+ LTTV_POINTER);
+ *(value.v_pointer) = lttv_state_copy_trap_states(self->trap_states, nb_traps);
+ }
+
+ /* 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, nb_irqs, nb_soft_irqs, nb_traps;
+
+ LttvTracefileState *tfcs;
+
+ LttvAttribute *tracefiles_tree, *tracefile_tree;
+
+ guint *running_process;
+
+ LttvAttributeType type;
+
+ LttvAttributeValue value;
+
+ LttvAttributeName name;
+
+ gboolean is_named;
+
+ LttEventPosition *ep;
+
+ LttvTracesetContext *tsc = self->parent.ts_context;
+
+ tracefiles_tree = lttv_attribute_find_subdir(container,
+ LTTV_STATE_TRACEFILES);
+
+ type = lttv_attribute_get_by_name(container, LTTV_STATE_PROCESSES,
+ &value);
+ g_assert(type == LTTV_POINTER);
+ lttv_state_free_process_table(self->processes);
+ self->processes = lttv_state_copy_process_table(*(value.v_pointer));
+
+ /* 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;i<nb_cpus;i++) {
+ pid = running_process[i];
+ self->running_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);
+
+ /* 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 soft irq resource states */
+ nb_soft_irqs = self->nb_soft_irqs;
+ type = lttv_attribute_get_by_name(container, LTTV_STATE_RESOURCE_SOFT_IRQS, &value);
+ g_assert(type == LTTV_POINTER);
+ lttv_state_free_soft_irq_states(self->soft_irq_states, nb_soft_irqs);
+ self->soft_irq_states = lttv_state_copy_soft_irq_states(*(value.v_pointer), nb_soft_irqs);
+
+ /* restore trap resource states */
+ nb_traps = self->nb_traps;
+ type = lttv_attribute_get_by_name(container, LTTV_STATE_RESOURCE_TRAPS, &value);
+ g_assert(type == LTTV_POINTER);
+ lttv_state_free_trap_states(self->trap_states, nb_traps);
+ self->trap_states = lttv_state_copy_trap_states(*(value.v_pointer), nb_traps);
+
+ /* 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,
+ LttvTracefileContext*, i));
+ type = lttv_attribute_get(tracefiles_tree, i, &name, &value, &is_named);
+ 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);
+ //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);
+
+ 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;
+ }
+ }
+}
+
+
+static void state_saved_free(LttvTraceState *self, LttvAttribute *container)
+{
+ guint i, nb_tracefile, nb_cpus, nb_irqs, nb_softirqs;
+
+ LttvTracefileState *tfcs;
+
+ LttvAttribute *tracefiles_tree, *tracefile_tree;
+
+ guint *running_process;
+
+ LttvAttributeType type;
+
+ LttvAttributeValue value;
+
+ LttvAttributeName name;
+
+ gboolean is_named;
+
+ tracefiles_tree = lttv_attribute_find_subdir(container,
+ LTTV_STATE_TRACEFILES);
+ g_object_ref(G_OBJECT(tracefiles_tree));
+ lttv_attribute_remove_by_name(container, LTTV_STATE_TRACEFILES);
+
+ type = lttv_attribute_get_by_name(container, LTTV_STATE_PROCESSES,
+ &value);
+ g_assert(type == LTTV_POINTER);
+ lttv_state_free_process_table(*(value.v_pointer));
+ *(value.v_pointer) = NULL;
+ lttv_attribute_remove_by_name(container, LTTV_STATE_PROCESSES);
+
+ /* Free running processes array */
+ 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);
+
+ /* free cpu resource states */
+ type = lttv_attribute_get_by_name(container, LTTV_STATE_RESOURCE_CPUS_COUNT, &value);
+ g_assert(type == LTTV_UINT);
+ nb_cpus = *value.v_uint;
+ type = lttv_attribute_get_by_name(container, LTTV_STATE_RESOURCE_CPUS, &value);
+ g_assert(type == LTTV_POINTER);
+ lttv_state_free_cpu_states(*(value.v_pointer), nb_cpus);
+
+ /* free 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(*(value.v_pointer), nb_irqs);
+
+ /* free softirq resource states */
+ nb_softirqs = self->nb_irqs;
+ type = lttv_attribute_get_by_name(container, LTTV_STATE_RESOURCE_SOFT_IRQS, &value);
+ g_assert(type == LTTV_POINTER);
+ lttv_state_free_soft_irq_states(*(value.v_pointer), nb_softirqs);
+
+ /* free 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(*(value.v_pointer));
+
+ 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));
+ type = lttv_attribute_get(tracefiles_tree, i, &name, &value, &is_named);
+ g_assert(type == LTTV_GOBJECT);
+ tracefile_tree = *((LttvAttribute **)(value.v_gobject));
+
+ type = lttv_attribute_get_by_name(tracefile_tree, LTTV_STATE_EVENT,
+ &value);
+ g_assert(type == LTTV_POINTER);
+ if(*(value.v_pointer) != NULL) g_free(*(value.v_pointer));
+ }
+ g_object_unref(G_OBJECT(tracefiles_tree));
+}
+
+
+static void free_saved_state(LttvTraceState *self)
+{
+ guint i, nb;
+
+ LttvAttributeType type;
+
+ LttvAttributeValue value;
+
+ LttvAttributeName name;
+
+ gboolean is_named;
+
+ LttvAttribute *saved_states;
+
+ saved_states = lttv_attribute_find_subdir(self->parent.t_a,
+ LTTV_STATE_SAVED_STATES);
+
+ nb = lttv_attribute_get_number(saved_states);
+ for(i = 0 ; i < nb ; i++) {
+ type = lttv_attribute_get(saved_states, i, &name, &value, &is_named);
+ g_assert(type == LTTV_GOBJECT);
+ state_saved_free(self, *((LttvAttribute **)value.v_gobject));
+ }
+
+ lttv_attribute_remove_by_name(self->parent.t_a, LTTV_STATE_SAVED_STATES);
+}
+
+
+static void
+create_max_time(LttvTraceState *tcs)
+{
+ LttvAttributeValue v;
+
+ lttv_attribute_find(tcs->parent.t_a, LTTV_STATE_SAVED_STATES_TIME,
+ LTTV_POINTER, &v);
+ g_assert(*(v.v_pointer) == NULL);
+ *(v.v_pointer) = g_new(LttTime,1);
+ *((LttTime *)*(v.v_pointer)) = ltt_time_zero;
+}
+
+
+static void
+get_max_time(LttvTraceState *tcs)
+{
+ LttvAttributeValue v;
+
+ lttv_attribute_find(tcs->parent.t_a, LTTV_STATE_SAVED_STATES_TIME,
+ LTTV_POINTER, &v);
+ g_assert(*(v.v_pointer) != NULL);
+ tcs->max_time_state_recomputed_in_seek = (LttTime *)*(v.v_pointer);
+}
+
+
+static void
+free_max_time(LttvTraceState *tcs)
+{
+ LttvAttributeValue v;
+
+ lttv_attribute_find(tcs->parent.t_a, LTTV_STATE_SAVED_STATES_TIME,
+ LTTV_POINTER, &v);
+ g_free(*(v.v_pointer));
+ *(v.v_pointer) = NULL;
+}
+
+
+typedef struct _LttvNameTables {
+ // FIXME GQuark *eventtype_names;
+ GQuark *syscall_names;
+ guint nb_syscalls;
+ GQuark *trap_names;
+ guint nb_traps;
+ GQuark *irq_names;
+ guint nb_irqs;
+ GQuark *soft_irq_names;
+ guint nb_softirqs;
+ GHashTable *kprobe_hash;
+} LttvNameTables;
+
+
+static void
+create_name_tables(LttvTraceState *tcs)
+{
+ int i;
+
+ GString *fe_name = g_string_new("");
+
+ LttvNameTables *name_tables = g_new(LttvNameTables, 1);
+
+ LttvAttributeValue v;
+
+ GArray *hooks;
+
+ lttv_attribute_find(tcs->parent.t_a, LTTV_STATE_NAME_TABLES,
+ LTTV_POINTER, &v);
+ g_assert(*(v.v_pointer) == NULL);
+ *(v.v_pointer) = name_tables;
+
+ hooks = g_array_sized_new(FALSE, FALSE, sizeof(LttvTraceHook), 1);
+
+ if(!lttv_trace_find_hook(tcs->parent.t,
+ LTT_CHANNEL_KERNEL,
+ LTT_EVENT_SYSCALL_ENTRY,
+ FIELD_ARRAY(LTT_FIELD_SYSCALL_ID),
+ NULL, NULL, &hooks)) {
+
+// th = lttv_trace_hook_get_first(&th);
+//
+// t = ltt_field_type(lttv_trace_get_hook_field(th, 0));
+// nb = ltt_type_element_number(t);
+//
+// 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->nb_syscalls = 256;
+ 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;
+ }
+ lttv_trace_hook_remove_all(&hooks);
+
+ if(!lttv_trace_find_hook(tcs->parent.t,
+ LTT_CHANNEL_KERNEL,
+ LTT_EVENT_TRAP_ENTRY,
+ FIELD_ARRAY(LTT_FIELD_TRAP_ID),
+ NULL, NULL, &hooks) ||
+ !lttv_trace_find_hook(tcs->parent.t,
+ LTT_CHANNEL_KERNEL,
+ LTT_EVENT_PAGE_FAULT_ENTRY,
+ FIELD_ARRAY(LTT_FIELD_TRAP_ID),
+ NULL, NULL, &hooks)) {
+
+// th = lttv_trace_hook_get_first(&th);
+//
+// t = ltt_field_type(lttv_trace_get_hook_field(th, 0));
+// //nb = ltt_type_element_number(t);
+//
+// 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;
+ }
+ lttv_trace_hook_remove_all(&hooks);
+
+ if(!lttv_trace_find_hook(tcs->parent.t,
+ LTT_CHANNEL_KERNEL,
+ LTT_EVENT_IRQ_ENTRY,
+ FIELD_ARRAY(LTT_FIELD_IRQ_ID),
+ NULL, NULL, &hooks)) {
+
+ /*
+ 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;
+ }
+ lttv_trace_hook_remove_all(&hooks);
+ /*
+ 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));
+ }
+ */
+
+ /* the kernel is limited to 32 statically defined softirqs */
+ name_tables->nb_softirqs = 32;
+ name_tables->soft_irq_names = g_new(GQuark, name_tables->nb_softirqs);
+ for(i = 0 ; i < name_tables->nb_softirqs ; i++) {
+ g_string_printf(fe_name, "softirq %d", i);
+ name_tables->soft_irq_names[i] = g_quark_from_string(fe_name->str);
+ }
+ g_array_free(hooks, TRUE);
+
+ g_string_free(fe_name, TRUE);
+
+#if (__SIZEOF_LONG__ == 4)
+ name_tables->kprobe_hash = g_hash_table_new_full(guint64_hash, guint64_equal,
+ g_free, NULL);
+#else
+ name_tables->kprobe_hash = g_hash_table_new(g_direct_hash, g_direct_equal);
+#endif
+}
+
+
+static void
+get_name_tables(LttvTraceState *tcs)
+{
+ LttvNameTables *name_tables;
+
+ LttvAttributeValue v;
+
+ lttv_attribute_find(tcs->parent.t_a, LTTV_STATE_NAME_TABLES,
+ LTTV_POINTER, &v);
+ g_assert(*(v.v_pointer) != NULL);
+ name_tables = (LttvNameTables *)*(v.v_pointer);
+ //tcs->eventtype_names = name_tables->eventtype_names;
+ 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_soft_irqs = name_tables->nb_softirqs;
+ tcs->kprobe_hash = name_tables->kprobe_hash;
+}
+
+
+static void
+free_name_tables(LttvTraceState *tcs)
+{
+ LttvNameTables *name_tables;
+
+ LttvAttributeValue v;
+
+ lttv_attribute_find(tcs->parent.t_a, LTTV_STATE_NAME_TABLES,
+ LTTV_POINTER, &v);
+ name_tables = (LttvNameTables *)*(v.v_pointer);
+ *(v.v_pointer) = NULL;
+
+ // g_free(name_tables->eventtype_names);
+ if(name_tables->syscall_names) g_free(name_tables->syscall_names);
+ if(name_tables->trap_names) g_free(name_tables->trap_names);
+ if(name_tables->irq_names) g_free(name_tables->irq_names);
+ if(name_tables->soft_irq_names) g_free(name_tables->soft_irq_names);
+ if(name_tables) g_free(name_tables);
+ if(name_tables) g_hash_table_destroy(name_tables->kprobe_hash);
+}
+
+#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
+
+/* 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)
+{
+ LttvExecutionState *es;
+
+ LttvTraceState *ts = (LttvTraceState*)tfs->parent.t_context;
+ guint cpu = tfs->cpu;
+
+#ifdef HASH_TABLE_DEBUG
+ hash_table_check(ts->processes);
+#endif
+ LttvProcessState *process = ts->running_process[cpu];
+
+ guint depth = process->execution_stack->len;
+
+ process->execution_stack =
+ g_array_set_size(process->execution_stack, depth + 1);
+ /* Keep in sync */
+ process->state =
+ &g_array_index(process->execution_stack, LttvExecutionState, depth - 1);
+
+ es = &g_array_index(process->execution_stack, LttvExecutionState, depth);
+ es->t = t;
+ es->n = state_id;
+ es->entry = es->change = tfs->parent.timestamp;
+ es->cum_cpu_time = ltt_time_zero;
+ es->s = process->state->s;
+ process->state = es;
+}
+
+/* pop state
+ * return 1 when empty, else 0 */
+int lttv_state_pop_state_cleanup(LttvProcessState *process,
+ LttvTracefileState *tfs)
+{
+ guint depth = process->execution_stack->len;
+
+ if(depth == 1){
+ return 1;
+ }
+
+ process->execution_stack =
+ g_array_set_size(process->execution_stack, depth - 1);
+ process->state = &g_array_index(process->execution_stack, LttvExecutionState,
+ depth - 2);
+ process->state->change = tfs->parent.timestamp;
+
+ return 0;
+}
+
+static void pop_state(LttvTracefileState *tfs, LttvExecutionMode t)
+{
+ guint cpu = tfs->cpu;
+ LttvTraceState *ts = (LttvTraceState*)tfs->parent.t_context;
+ LttvProcessState *process = ts->running_process[cpu];
+
+ guint depth = process->execution_stack->len;
+
+ if(process->state->t != 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, %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;
+ }
+
+ if(depth == 1){
+ g_info("Trying to pop last state on stack (%lu.%09lu): ignore it\n",
+ tfs->parent.timestamp.tv_sec, tfs->parent.timestamp.tv_nsec);
+ return;
+ }
+
+ process->execution_stack =
+ g_array_set_size(process->execution_stack, depth - 1);
+ process->state = &g_array_index(process->execution_stack, LttvExecutionState,
+ depth - 2);
+ process->state->change = tfs->parent.timestamp;
+}
+
+struct search_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 = (LttTime *)elem_time;
+ }
+ } else {
+ res->best = (LttTime *)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,
+ GUINT_TO_POINTER(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;
+}
+
+
+LttvProcessState *
+lttv_state_create_process(LttvTraceState *tcs, LttvProcessState *parent,
+ guint cpu, guint pid, guint tgid, GQuark name, const LttTime *timestamp)
+{
+ LttvProcessState *process = g_new(LttvProcessState, 1);
+
+ LttvExecutionState *es;
+
+ 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.
+
+ g_info("Process %u, core %p", process->pid, process);
+ g_hash_table_insert(tcs->processes, process, process);
+
+ if(parent) {
+ process->ppid = parent->pid;
+ process->creation_time = *timestamp;
+ }
+
+ /* No parent. This process exists but we are missing all information about
+ its creation. The birth time is set to zero but we remember the time of
+ insertion */
+
+ else {
+ process->ppid = 0;
+ process->creation_time = ltt_time_zero;
+ }
+
+ 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->cpu = cpu;
+ process->free_events = 0;
+ //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, 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 = *timestamp;
+ //g_assert(timestamp->tv_sec != 0);
+ es->change = *timestamp;
+ es->cum_cpu_time = ltt_time_zero;
+ 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->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);
+
+ return process;
+}
+
+LttvProcessState *lttv_state_find_process(LttvTraceState *ts, guint cpu,
+ guint pid)
+{
+ LttvProcessState key;
+ LttvProcessState *process;
+
+ key.pid = pid;
+ key.cpu = cpu;
+ process = g_hash_table_lookup(ts->processes, &key);
+ return process;
+}
+
+LttvProcessState *
+lttv_state_find_process_or_create(LttvTraceState *ts, guint cpu, guint pid,
+ 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, 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;
+}
+
+/* FIXME : this function should be called when we receive an event telling that
+ * release_task has been called in the kernel. In happens generally when
+ * the parent waits for its child terminaison, but may also happen in special
+ * cases in the child's exit : when the parent ignores its children SIGCCHLD or
+ * has the flag SA_NOCLDWAIT. It can also happen when the child is part
+ * of a killed thread group, but isn't the leader.
+ */
+static int exit_process(LttvTracefileState *tfs, LttvProcessState *process)
+{
+ LttvTraceState *ts = LTTV_TRACE_STATE(tfs->parent.t_context);
+ LttvProcessState key;
+
+ /* Wait for both schedule with exit dead and process free to happen.
+ * They can happen in any order. */
+ if (++(process->free_events) < 2)
+ return 0;
+
+ key.pid = process->pid;
+ key.cpu = process->cpu;
+ g_hash_table_remove(ts->processes, &key);
+ g_array_free(process->execution_stack, TRUE);
+ g_array_free(process->user_stack, TRUE);
+ g_free(process);
+ return 1;
+}
+
+
+static void free_process_state(gpointer key, gpointer value,gpointer user_data)
+{
+ g_array_free(((LttvProcessState *)value)->execution_stack, TRUE);
+ g_array_free(((LttvProcessState *)value)->user_stack, TRUE);
+ g_free(value);
+}
+
+
+static void lttv_state_free_process_table(GHashTable *processes)
+{
+ g_hash_table_foreach(processes, free_process_state, NULL);
+ g_hash_table_destroy(processes);
+}
+
+
+static gboolean syscall_entry(void *hook_data, void *call_data)
+{
+ 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);
+ LttvTraceHook *th = (LttvTraceHook *)hook_data;
+ struct marker_field *f = lttv_trace_get_hook_field(th, 0);
+ LttvExecutionSubmode submode;
+
+ guint syscall = ltt_event_get_unsigned(e, f);
+ expand_syscall_table(ts, syscall);
+ submode = ((LttvTraceState *)(s->parent.t_context))->syscall_names[syscall];
+ /* There can be no system call from PID 0 : unknown state */
+ if(process->pid != 0)
+ push_state(s, LTTV_STATE_SYSCALL, submode);
+ return FALSE;
+}
+
+
+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];
+
+ /* There can be no system call from PID 0 : unknown state */
+ if(process->pid != 0)
+ pop_state(s, LTTV_STATE_SYSCALL);
+ return FALSE;
+}
+
+
+static gboolean trap_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);
+ LttvTraceHook *th = (LttvTraceHook *)hook_data;
+ struct marker_field *f = lttv_trace_get_hook_field(th, 0);
+
+ LttvExecutionSubmode submode;
+
+ guint64 trap = ltt_event_get_long_unsigned(e, f);
+
+ expand_trap_table(ts, trap);
+
+ submode = ((LttvTraceState *)(s->parent.t_context))->trap_names[trap];
+
+ push_state(s, LTTV_STATE_TRAP, submode);
+
+ /* update cpu status */
+ cpu_push_mode(s->cpu_state, LTTV_CPU_TRAP);
+
+ /* update trap status */
+ g_array_append_val(s->cpu_state->trap_stack, trap);
+ ts->trap_states[trap].running++;
+
+ return FALSE;
+}
+
+static gboolean trap_exit(void *hook_data, void *call_data)
+{
+ LttvTracefileState *s = (LttvTracefileState *)call_data;
+ LttvTraceState *ts = (LttvTraceState *)s->parent.t_context;
+
+ pop_state(s, LTTV_STATE_TRAP);
+
+ /* update cpu status */
+ cpu_pop_mode(s->cpu_state);
+
+ /* update trap status */
+ if (s->cpu_state->trap_stack->len > 0) {
+ gint last = g_array_index(s->cpu_state->trap_stack, gint, s->cpu_state->trap_stack->len-1);
+ if(ts->trap_states[last].running)
+ ts->trap_states[last].running--;
+ g_array_remove_index(s->cpu_state->trap_stack, s->cpu_state->trap_stack->len-1);
+ }
+ 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 ev_id = ltt_event_eventtype_id(e);
+ LttvTraceHook *th = (LttvTraceHook *)hook_data;
+ struct marker_field *f = lttv_trace_get_hook_field(th, 0);
+
+ LttvExecutionSubmode submode;
+ guint64 irq = ltt_event_get_long_unsigned(e, f);
+
+ expand_irq_table(ts, irq);
+
+ submode = ((LttvTraceState *)(s->parent.t_context))->irq_names[irq];
+
+ /* 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 */
+ g_array_append_val(s->cpu_state->irq_stack, irq);
+ irq_push_mode(&ts->irq_states[irq], LTTV_IRQ_BUSY);
+
+ return FALSE;
+}
+
+static gboolean soft_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_SOFT_IRQ);
+
+ /* update cpu status */
+ cpu_pop_mode(s->cpu_state);
+
+ /* update softirq status */
+ if (s->cpu_state->softirq_stack->len > 0) {
+ gint last = g_array_index(s->cpu_state->softirq_stack, gint, s->cpu_state->softirq_stack->len-1);
+ if(ts->soft_irq_states[last].running)
+ ts->soft_irq_states[last].running--;
+ g_array_remove_index(s->cpu_state->softirq_stack, s->cpu_state->softirq_stack->len-1);
+ }
+ return FALSE;
+}
+
+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 */
+ if (s->cpu_state->irq_stack->len > 0) {
+ gint last = g_array_index(s->cpu_state->irq_stack, gint, s->cpu_state->irq_stack->len-1);
+ g_array_remove_index(s->cpu_state->irq_stack, s->cpu_state->irq_stack->len-1);
+ irq_pop_mode(&ts->irq_states[last]);
+ }
+
+ return FALSE;
+}
+
+static gboolean soft_irq_raise(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 ev_id = ltt_event_eventtype_id(e);
+ LttvTraceHook *th = (LttvTraceHook *)hook_data;
+ struct marker_field *f = lttv_trace_get_hook_field(th, 0);
+
+ LttvExecutionSubmode submode;
+ guint64 softirq = ltt_event_get_long_unsigned(e, f);
+ guint64 nb_softirqs = ((LttvTraceState *)(s->parent.t_context))->nb_soft_irqs;
+
+ 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 %" PRIu64, softirq);
+ submode = g_quark_from_string(string->str);
+ g_string_free(string, TRUE);
+ }
+
+ /* update softirq status */
+ /* a soft irq raises are not cumulative */
+ ts->soft_irq_states[softirq].pending=1;
+
+ return FALSE;
+}
+
+static gboolean soft_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 ev_id = ltt_event_eventtype_id(e);
+ LttvTraceHook *th = (LttvTraceHook *)hook_data;
+ struct marker_field *f = lttv_trace_get_hook_field(th, 0);
+ LttvExecutionSubmode submode;
+ guint64 softirq = ltt_event_get_long_unsigned(e, f);
+ expand_soft_irq_table(ts, softirq);
+ submode = ((LttvTraceState *)(s->parent.t_context))->soft_irq_names[softirq];
+
+ /* Do something with the info about being in user or system mode when int? */
+ push_state(s, LTTV_STATE_SOFT_IRQ, submode);
+
+ /* update cpu status */
+ cpu_push_mode(s->cpu_state, LTTV_CPU_SOFT_IRQ);
+
+ /* update softirq status */
+ g_array_append_val(s->cpu_state->softirq_stack, softirq);
+ if(ts->soft_irq_states[softirq].pending)
+ ts->soft_irq_states[softirq].pending--;
+ ts->soft_irq_states[softirq].running++;
+
+ return FALSE;
+}
+
+static gboolean enum_interrupt(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 ev_id = ltt_event_eventtype_id(e);
+ LttvTraceHook *th = (LttvTraceHook *)hook_data;
+
+ GQuark action = g_quark_from_string(ltt_event_get_string(e,
+ lttv_trace_get_hook_field(th, 0)));
+ guint irq = ltt_event_get_long_unsigned(e, lttv_trace_get_hook_field(th, 1));
+
+ expand_irq_table(ts, irq);
+ ts->irq_names[irq] = action;
+
+ 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 ev_id = ltt_event_eventtype_id(e);
+ LttvTraceHook *th = (LttvTraceHook *)hook_data;
+
+ guint major = ltt_event_get_long_unsigned(e,
+ lttv_trace_get_hook_field(th, 0));
+ guint minor = ltt_event_get_long_unsigned(e,
+ lttv_trace_get_hook_field(th, 1));
+ guint oper = ltt_event_get_long_unsigned(e,
+ lttv_trace_get_hook_field(th, 2));
+ 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);
+ LttvTraceHook *th = (LttvTraceHook *)hook_data;
+
+ guint major = ltt_event_get_long_unsigned(e,
+ lttv_trace_get_hook_field(th, 0));
+ guint minor = ltt_event_get_long_unsigned(e,
+ lttv_trace_get_hook_field(th, 1));
+ //guint oper = ltt_event_get_long_unsigned(e,
+ // lttv_trace_get_hook_field(th, 2));
+ 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;
+
+ LttvTraceState *ts = (LttvTraceState*)tfs->parent.t_context;
+ guint cpu = tfs->cpu;
+ LttvProcessState *process = ts->running_process[cpu];
+
+ guint depth = process->user_stack->len;
+
+ process->user_stack =
+ g_array_set_size(process->user_stack, depth + 1);
+
+ new_func = &g_array_index(process->user_stack, guint64, depth);
+ *new_func = funcptr;
+ process->current_function = funcptr;
+}
+
+static void pop_function(LttvTracefileState *tfs, guint64 funcptr)
+{
+ guint cpu = tfs->cpu;
+ LttvTraceState *ts = (LttvTraceState*)tfs->parent.t_context;
+ LttvProcessState *process = ts->running_process[cpu];
+
+ if(process->current_function != 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 %" PRIu64 " when pop_function is %" PRIu64 "\n",
+ 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;
+
+ if(depth == 0){
+ g_info("Trying to pop last function on stack (%lu.%09lu): ignore it\n",
+ tfs->parent.timestamp.tv_sec, tfs->parent.timestamp.tv_nsec);
+ return;
+ }
+
+ process->user_stack =
+ g_array_set_size(process->user_stack, depth - 1);
+ process->current_function =
+ g_array_index(process->user_stack, guint64, depth - 2);
+}
+
+
+static gboolean function_entry(void *hook_data, void *call_data)
+{
+ LttvTracefileState *s = (LttvTracefileState *)call_data;
+ LttEvent *e = ltt_tracefile_get_event(s->parent.tf);
+ //guint8 ev_id = ltt_event_eventtype_id(e);
+ LttvTraceHook *th = (LttvTraceHook *)hook_data;
+ struct marker_field *f = lttv_trace_get_hook_field(th, 0);
+ guint64 funcptr = ltt_event_get_long_unsigned(e, f);
+
+ push_function(s, funcptr);
+ return FALSE;
+}
+
+static gboolean function_exit(void *hook_data, void *call_data)
+{
+ LttvTracefileState *s = (LttvTracefileState *)call_data;
+ LttEvent *e = ltt_tracefile_get_event(s->parent.tf);
+ //guint8 ev_id = ltt_event_eventtype_id(e);
+ LttvTraceHook *th = (LttvTraceHook *)hook_data;
+ struct marker_field *f = lttv_trace_get_hook_field(th, 0);
+ guint64 funcptr = ltt_event_get_long_unsigned(e, f);
+
+ pop_function(s, funcptr);
+ return FALSE;
+}
+
+static gboolean dump_syscall(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);
+ LttvTraceHook *th = (LttvTraceHook *)hook_data;
+ guint id;
+ guint64 address;
+ char *symbol;
+
+ id = ltt_event_get_unsigned(e, lttv_trace_get_hook_field(th, 0));
+ address = ltt_event_get_long_unsigned(e, lttv_trace_get_hook_field(th, 1));
+ symbol = ltt_event_get_string(e, lttv_trace_get_hook_field(th, 2));
+
+ expand_syscall_table(ts, id);
+ ts->syscall_names[id] = g_quark_from_string(symbol);
+
+ return FALSE;
+}
+
+static gboolean dump_kprobe(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);
+ LttvTraceHook *th = (LttvTraceHook *)hook_data;
+ guint64 ip;
+ char *symbol;
+
+ ip = ltt_event_get_long_unsigned(e, lttv_trace_get_hook_field(th, 0));
+ symbol = ltt_event_get_string(e, lttv_trace_get_hook_field(th, 1));
+
+ expand_kprobe_table(ts, ip, symbol);
+
+ return FALSE;
+}
+
+static gboolean dump_softirq(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);
+ LttvTraceHook *th = (LttvTraceHook *)hook_data;
+ guint id;
+ guint64 address;
+ char *symbol;
+
+ id = ltt_event_get_unsigned(e, lttv_trace_get_hook_field(th, 0));
+ address = ltt_event_get_long_unsigned(e, lttv_trace_get_hook_field(th, 1));
+ symbol = ltt_event_get_string(e, lttv_trace_get_hook_field(th, 2));
+
+ expand_soft_irq_table(ts, id);
+ ts->soft_irq_names[id] = g_quark_from_string(symbol);
+
+ return FALSE;
+}
+
+static gboolean schedchange(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];
+ //LttvProcessState *old_process = ts->running_process[cpu];
+
+ LttEvent *e = ltt_tracefile_get_event(s->parent.tf);
+ LttvTraceHook *th = (LttvTraceHook *)hook_data;
+ guint pid_in, pid_out;
+ gint64 state_out;
+
+ pid_out = ltt_event_get_unsigned(e, lttv_trace_get_hook_field(th, 0));
+ pid_in = ltt_event_get_unsigned(e, lttv_trace_get_hook_field(th, 1));
+ state_out = ltt_event_get_long_int(e, lttv_trace_get_hook_field(th, 2));
+
+ 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
+ event, and when the initial information (current process for each CPU)
+ is missing. It is not obvious how we could, after the fact, compensate
+ the wrongly attributed statistics. */
+
+ //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)
+ //if(unlikely(process->pid != pid_out)) {
+ // g_assert(process->pid == 0);
+ //}
+ 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(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 == 64) { /* EXIT_DEAD || TASK_DEAD */
+ /* see sched.h for states */
+ if (!exit_process(s, process)) {
+ process->state->s = LTTV_STATE_DEAD;
+ 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;
+ 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)
+ /* going to idle task */
+ cpu_set_base_mode(s->cpu_state, LTTV_CPU_IDLE);
+ else {
+ /* scheduling a real task.
+ * we must be careful here:
+ * if we just schedule()'ed to a process that is
+ * in a trap, we must put the cpu in trap mode
+ */
+ cpu_set_base_mode(s->cpu_state, LTTV_CPU_BUSY);
+ if(process->state->t == LTTV_STATE_TRAP)
+ cpu_push_mode(s->cpu_state, LTTV_CPU_TRAP);
+ }
+
+ return FALSE;
+}
+
+static gboolean process_fork(void *hook_data, void *call_data)
+{
+ LttvTracefileState *s = (LttvTracefileState *)call_data;
+ LttEvent *e = ltt_tracefile_get_event(s->parent.tf);
+ LttvTraceHook *th = (LttvTraceHook *)hook_data;
+ guint parent_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;
+ LttvProcessState *process = ts->running_process[cpu];
+ LttvProcessState *child_process;
+ struct marker_field *f;
+
+ /* Parent PID */
+ parent_pid = ltt_event_get_unsigned(e, lttv_trace_get_hook_field(th, 0));
+
+ /* Child PID */
+ child_pid = ltt_event_get_unsigned(e, lttv_trace_get_hook_field(th, 1));
+ s->parent.target_pid = child_pid;
+
+ /* Child TGID */
+ f = lttv_trace_get_hook_field(th, 2);
+ if (likely(f))
+ child_tgid = ltt_event_get_unsigned(e, f);
+ 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
+ * 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);
+ }
+#endif //0
+ g_assert(process->pid != child_pid);
+ // FIXME : Add this test in the "known state" section
+ // g_assert(process->pid == parent_pid);
+ 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, 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
+ * shouldn't have this kind of imprecision.
+ *
+ * Simply put a correct parent.
+ */
+ g_error("Process %u has been created at [%lu.%09lu] "
+ "and inserted at [%lu.%09lu] before \n"
+ "fork on cpu %u[%lu.%09lu].\n"
+ "Probably an unsynchronized TSC problem on the traced machine.",
+ child_pid,
+ child_process->creation_time.tv_sec,
+ child_process->creation_time.tv_nsec,
+ child_process->insertion_time.tv_sec,
+ child_process->insertion_time.tv_nsec,
+ cpu, ltt_event_time(e).tv_sec, ltt_event_time(e).tv_nsec);
+ //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;
+ child_process->brand = process->brand;
+
+ return FALSE;
+}
+
+/* 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;
+ LttEvent *e = ltt_tracefile_get_event(s->parent.tf);
+ LttvTraceHook *th = (LttvTraceHook *)hook_data;
+ guint pid;
+ LttvTraceState *ts = (LttvTraceState*)s->parent.t_context;
+ LttvProcessState *process;
+ LttvExecutionState *es;
+
+ /* PID */
+ pid = (guint)ltt_event_get_long_unsigned(e, lttv_trace_get_hook_field(th, 0));
+ s->parent.target_pid = pid;
+
+ process = lttv_state_find_process_or_create(ts, ANY_CPU, pid,
+ <t_time_zero);
+ if (process->state->s != LTTV_STATE_DEAD) {
+ 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;
+}
+
+static gboolean process_exit(void *hook_data, void *call_data)
+{
+ LttvTracefileState *s = (LttvTracefileState *)call_data;
+ LttEvent *e = ltt_tracefile_get_event(s->parent.tf);
+ LttvTraceHook *th = (LttvTraceHook *)hook_data;
+ guint pid;
+ LttvTraceState *ts = (LttvTraceState*)s->parent.t_context;
+ LttvProcessState *process; // = ts->running_process[cpu];
+
+ pid = ltt_event_get_unsigned(e, lttv_trace_get_hook_field(th, 0));
+ 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;
+ }
+ return FALSE;
+}
+
+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);
+ LttvTraceHook *th = (LttvTraceHook *)hook_data;
+ guint release_pid;
+ LttvProcessState *process;
+
+ /* PID of the process to release */
+ release_pid = ltt_event_get_unsigned(e, lttv_trace_get_hook_field(th, 0));
+ s->parent.target_pid = release_pid;
+
+ g_assert(release_pid != 0);
+
+ process = lttv_state_find_process(ts, ANY_CPU, release_pid);
+ if(likely(process != NULL))
+ exit_process(s, process);
+ return FALSE;
+//DISABLED
+ if(likely(process != NULL)) {
+ /* release_task is happening at kernel level : we can now safely release
+ * the data structure of the 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);
+ LttvTraceHook *th = (LttvTraceHook *)hook_data;
+ //gchar *name;
+ 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,
+ lttv_trace_get_hook_field(th, 0));
+ //name = ltt_event_get_string(e, lttv_trace_get_hook_field(th, 0));
+ LttField *child = ltt_event_field_element_select(e,
+ lttv_trace_get_hook_field(th, 0), 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);
+#endif //0
+
+ process->name = g_quark_from_string(ltt_event_get_string(e,
+ lttv_trace_get_hook_field(th, 0)));
+ 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);
+ LttvTraceHook *th = (LttvTraceHook *)hook_data;
+ gchar *name;
+ guint cpu = s->cpu;
+ LttvProcessState *process = ts->running_process[cpu];
+
+ name = ltt_event_get_string(e, lttv_trace_get_hook_field(th, 0));
+ 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;
+ 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);
+ //LttvTraceHook *th = (LttvTraceHook *)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);
+
+ return FALSE;
+}
+
+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.
+ LttvTraceHook *th = (LttvTraceHook *)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;
+ struct marker_field *f;
+ GQuark type, mode, submode, status;
+ LttvExecutionState *es;
+ guint i, nb_cpus;
+
+ /* PID */
+ pid = ltt_event_get_unsigned(e, lttv_trace_get_hook_field(th, 0));
+ s->parent.target_pid = pid;
+
+ /* Parent PID */
+ parent_pid = ltt_event_get_unsigned(e, lttv_trace_get_hook_field(th, 1));
+
+ /* Command name */
+ command = ltt_event_get_string(e, lttv_trace_get_hook_field(th, 2));
+
+ /* type */
+ f = lttv_trace_get_hook_field(th, 3);
+ type = ltt_enum_string_get(f, ltt_event_get_unsigned(e, f));
+
+ //FIXME: type is rarely used, enum must match possible types.
+
+ /* mode */
+ f = lttv_trace_get_hook_field(th, 4);
+ mode = ltt_enum_string_get(f,ltt_event_get_unsigned(e, f));
+
+ /* submode */
+ f = lttv_trace_get_hook_field(th, 5);
+ submode = ltt_enum_string_get(f, ltt_event_get_unsigned(e, f));
+
+ /* status */
+ f = lttv_trace_get_hook_field(th, 6);
+ status = ltt_enum_string_get(f, ltt_event_get_unsigned(e, f));
+
+ /* TGID */
+ f = lttv_trace_get_hook_field(th, 7);
+ if(f)
+ tgid = ltt_event_get_unsigned(e, f);
+ else
+ tgid = 0;
+
+ if(pid == 0) {
+ nb_cpus = ltt_trace_get_num_cpu(ts->parent.t);
+ for(i=0; i<nb_cpus; i++) {
+ process = lttv_state_find_process(ts, i, pid);
+ g_assert(process != NULL);
+
+ process->ppid = 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;
+ }
+
+ } 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
+ 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
+ /* Don't mess around with the stack, it will eventually become
+ * ok after the end of state dump. */
+ }
+ }
+
+ return FALSE;
+}
+
+gint lttv_state_hook_add_event_hooks(void *hook_data, void *call_data)
+{
+ LttvTracesetState *tss = (LttvTracesetState*)(call_data);
+
+ lttv_state_add_event_hooks(tss);
+
+ return 0;
+}
+
+void lttv_state_add_event_hooks(LttvTracesetState *self)
+{
+ LttvTraceset *traceset = self->parent.ts;
+
+ guint i, j, k, nb_trace, nb_tracefile;
+
+ LttvTraceState *ts;
+
+ LttvTracefileState *tfs;
+
+ GArray *hooks;
+
+ LttvTraceHook *th;
+
+ LttvAttributeValue val;
+
+ nb_trace = lttv_traceset_number(traceset);
+ for(i = 0 ; i < nb_trace ; i++) {
+ ts = (LttvTraceState *)self->parent.traces[i];
+
+ /* Find the eventtype id for the following events and register the
+ associated by id hooks. */
+
+ hooks = g_array_sized_new(FALSE, FALSE, sizeof(LttvTraceHook), 20);
+ //hooks = g_array_set_size(hooks, 19); // Max possible number of hooks.
+ //hn = 0;
+
+ lttv_trace_find_hook(ts->parent.t,
+ LTT_CHANNEL_KERNEL,
+ LTT_EVENT_SYSCALL_ENTRY,
+ FIELD_ARRAY(LTT_FIELD_SYSCALL_ID),
+ syscall_entry, NULL, &hooks);
+
+ lttv_trace_find_hook(ts->parent.t,
+ LTT_CHANNEL_KERNEL,
+ LTT_EVENT_SYSCALL_EXIT,
+ NULL,
+ syscall_exit, NULL, &hooks);
+
+ lttv_trace_find_hook(ts->parent.t,
+ LTT_CHANNEL_KERNEL,
+ LTT_EVENT_TRAP_ENTRY,
+ FIELD_ARRAY(LTT_FIELD_TRAP_ID),
+ trap_entry, NULL, &hooks);
+
+ lttv_trace_find_hook(ts->parent.t,
+ LTT_CHANNEL_KERNEL,
+ LTT_EVENT_TRAP_EXIT,
+ NULL,
+ trap_exit, NULL, &hooks);
+
+ lttv_trace_find_hook(ts->parent.t,
+ LTT_CHANNEL_KERNEL,
+ LTT_EVENT_PAGE_FAULT_ENTRY,
+ FIELD_ARRAY(LTT_FIELD_TRAP_ID),
+ trap_entry, NULL, &hooks);
+
+ lttv_trace_find_hook(ts->parent.t,
+ LTT_CHANNEL_KERNEL,
+ LTT_EVENT_PAGE_FAULT_EXIT,
+ NULL,
+ trap_exit, NULL, &hooks);
+
+ lttv_trace_find_hook(ts->parent.t,
+ LTT_CHANNEL_KERNEL,
+ LTT_EVENT_PAGE_FAULT_NOSEM_ENTRY,
+ FIELD_ARRAY(LTT_FIELD_TRAP_ID),
+ trap_entry, NULL, &hooks);
+
+ lttv_trace_find_hook(ts->parent.t,
+ LTT_CHANNEL_KERNEL,
+ LTT_EVENT_PAGE_FAULT_NOSEM_EXIT,
+ NULL,
+ trap_exit, NULL, &hooks);
+
+ lttv_trace_find_hook(ts->parent.t,
+ LTT_CHANNEL_KERNEL,
+ LTT_EVENT_IRQ_ENTRY,
+ FIELD_ARRAY(LTT_FIELD_IRQ_ID),
+ irq_entry, NULL, &hooks);
+
+ lttv_trace_find_hook(ts->parent.t,
+ LTT_CHANNEL_KERNEL,
+ LTT_EVENT_IRQ_EXIT,
+ NULL,
+ irq_exit, NULL, &hooks);
+
+ lttv_trace_find_hook(ts->parent.t,
+ LTT_CHANNEL_KERNEL,
+ LTT_EVENT_SOFT_IRQ_RAISE,
+ FIELD_ARRAY(LTT_FIELD_SOFT_IRQ_ID),
+ soft_irq_raise, NULL, &hooks);
+
+ lttv_trace_find_hook(ts->parent.t,
+ LTT_CHANNEL_KERNEL,
+ LTT_EVENT_SOFT_IRQ_ENTRY,
+ FIELD_ARRAY(LTT_FIELD_SOFT_IRQ_ID),
+ soft_irq_entry, NULL, &hooks);
+
+ lttv_trace_find_hook(ts->parent.t,
+ LTT_CHANNEL_KERNEL,
+ LTT_EVENT_SOFT_IRQ_EXIT,
+ NULL,
+ soft_irq_exit, NULL, &hooks);
+
+ lttv_trace_find_hook(ts->parent.t,
+ LTT_CHANNEL_KERNEL,
+ LTT_EVENT_SCHED_SCHEDULE,
+ FIELD_ARRAY(LTT_FIELD_PREV_PID, LTT_FIELD_NEXT_PID,
+ LTT_FIELD_PREV_STATE),
+ schedchange, NULL, &hooks);
+
+ lttv_trace_find_hook(ts->parent.t,
+ LTT_CHANNEL_KERNEL,
+ LTT_EVENT_PROCESS_FORK,
+ FIELD_ARRAY(LTT_FIELD_PARENT_PID, LTT_FIELD_CHILD_PID,
+ LTT_FIELD_CHILD_TGID),
+ process_fork, NULL, &hooks);
+
+ lttv_trace_find_hook(ts->parent.t,
+ LTT_CHANNEL_KERNEL,
+ LTT_EVENT_KTHREAD_CREATE,
+ FIELD_ARRAY(LTT_FIELD_PID),
+ process_kernel_thread, NULL, &hooks);
+
+ lttv_trace_find_hook(ts->parent.t,
+ LTT_CHANNEL_KERNEL,
+ LTT_EVENT_PROCESS_EXIT,
+ FIELD_ARRAY(LTT_FIELD_PID),
+ process_exit, NULL, &hooks);
+
+ lttv_trace_find_hook(ts->parent.t,
+ LTT_CHANNEL_KERNEL,
+ LTT_EVENT_PROCESS_FREE,
+ FIELD_ARRAY(LTT_FIELD_PID),
+ process_free, NULL, &hooks);
+
+ lttv_trace_find_hook(ts->parent.t,
+ LTT_CHANNEL_FS,
+ LTT_EVENT_EXEC,
+ FIELD_ARRAY(LTT_FIELD_FILENAME),
+ process_exec, NULL, &hooks);
+
+ lttv_trace_find_hook(ts->parent.t,
+ LTT_CHANNEL_USERSPACE,
+ LTT_EVENT_THREAD_BRAND,
+ FIELD_ARRAY(LTT_FIELD_NAME),
+ thread_brand, NULL, &hooks);
+
+ /* statedump-related hooks */
+ lttv_trace_find_hook(ts->parent.t,
+ LTT_CHANNEL_TASK_STATE,
+ LTT_EVENT_PROCESS_STATE,
+ FIELD_ARRAY(LTT_FIELD_PID, LTT_FIELD_PARENT_PID, LTT_FIELD_NAME,
+ LTT_FIELD_TYPE, LTT_FIELD_MODE, LTT_FIELD_SUBMODE,
+ LTT_FIELD_STATUS, LTT_FIELD_TGID),
+ enum_process_state, NULL, &hooks);
+
+ lttv_trace_find_hook(ts->parent.t,
+ LTT_CHANNEL_GLOBAL_STATE,
+ LTT_EVENT_STATEDUMP_END,
+ NULL,
+ statedump_end, NULL, &hooks);
+
+ lttv_trace_find_hook(ts->parent.t,
+ LTT_CHANNEL_IRQ_STATE,
+ LTT_EVENT_LIST_INTERRUPT,
+ FIELD_ARRAY(LTT_FIELD_ACTION, LTT_FIELD_IRQ_ID),
+ enum_interrupt, NULL, &hooks);
+
+ lttv_trace_find_hook(ts->parent.t,
+ LTT_CHANNEL_BLOCK,
+ LTT_EVENT_REQUEST_ISSUE,
+ FIELD_ARRAY(LTT_FIELD_MAJOR, LTT_FIELD_MINOR, LTT_FIELD_OPERATION),
+ bdev_request_issue, NULL, &hooks);
+
+ lttv_trace_find_hook(ts->parent.t,
+ LTT_CHANNEL_BLOCK,
+ LTT_EVENT_REQUEST_COMPLETE,
+ FIELD_ARRAY(LTT_FIELD_MAJOR, LTT_FIELD_MINOR, LTT_FIELD_OPERATION),
+ bdev_request_complete, NULL, &hooks);
+
+ lttv_trace_find_hook(ts->parent.t,
+ LTT_CHANNEL_USERSPACE,
+ LTT_EVENT_FUNCTION_ENTRY,
+ FIELD_ARRAY(LTT_FIELD_THIS_FN, LTT_FIELD_CALL_SITE),
+ function_entry, NULL, &hooks);
+
+ lttv_trace_find_hook(ts->parent.t,
+ LTT_CHANNEL_USERSPACE,
+ LTT_EVENT_FUNCTION_EXIT,
+ FIELD_ARRAY(LTT_FIELD_THIS_FN, LTT_FIELD_CALL_SITE),
+ function_exit, NULL, &hooks);
+
+ lttv_trace_find_hook(ts->parent.t,
+ LTT_CHANNEL_SYSCALL_STATE,
+ LTT_EVENT_SYS_CALL_TABLE,
+ FIELD_ARRAY(LTT_FIELD_ID, LTT_FIELD_ADDRESS, LTT_FIELD_SYMBOL),
+ dump_syscall, NULL, &hooks);
+
+ lttv_trace_find_hook(ts->parent.t,
+ LTT_CHANNEL_KPROBE_STATE,
+ LTT_EVENT_KPROBE_TABLE,
+ FIELD_ARRAY(LTT_FIELD_IP, LTT_FIELD_SYMBOL),
+ dump_kprobe, NULL, &hooks);
+
+ lttv_trace_find_hook(ts->parent.t,
+ LTT_CHANNEL_SOFTIRQ_STATE,
+ LTT_EVENT_SOFTIRQ_VEC,
+ FIELD_ARRAY(LTT_FIELD_ID, LTT_FIELD_ADDRESS, LTT_FIELD_SYMBOL),
+ dump_softirq, NULL, &hooks);
+
+ /* Add these hooks to each event_by_id hooks list */
+
+ nb_tracefile = ts->parent.tracefiles->len;
+
+ for(j = 0 ; j < nb_tracefile ; j++) {
+ tfs =
+ LTTV_TRACEFILE_STATE(g_array_index(ts->parent.tracefiles,
+ LttvTracefileContext*, j));
+
+ for(k = 0 ; k < hooks->len ; k++) {
+ th = &g_array_index(hooks, LttvTraceHook, k);
+ if (th->mdata == tfs->parent.tf->mdata)
+ lttv_hooks_add(
+ lttv_hooks_by_id_find(tfs->parent.event_by_id, th->id),
+ th->h,
+ th,
+ LTTV_PRIO_STATE);
+ }
+ }
+ lttv_attribute_find(ts->parent.a, LTTV_STATE_HOOKS, LTTV_POINTER, &val);
+ *(val.v_pointer) = hooks;
+ }
+}
+
+gint lttv_state_hook_remove_event_hooks(void *hook_data, void *call_data)
+{
+ LttvTracesetState *tss = (LttvTracesetState*)(call_data);
+
+ lttv_state_remove_event_hooks(tss);
+
+ return 0;
+}
+
+void lttv_state_remove_event_hooks(LttvTracesetState *self)
+{
+ LttvTraceset *traceset = self->parent.ts;
+
+ guint i, j, k, nb_trace, nb_tracefile;
+
+ LttvTraceState *ts;
+
+ LttvTracefileState *tfs;
+
+ GArray *hooks;
+
+ LttvTraceHook *th;
+
+ LttvAttributeValue val;
+
+ nb_trace = lttv_traceset_number(traceset);
+ for(i = 0 ; i < nb_trace ; i++) {
+ ts = LTTV_TRACE_STATE(self->parent.traces[i]);
+
+ lttv_attribute_find(ts->parent.a, LTTV_STATE_HOOKS, LTTV_POINTER, &val);
+ hooks = *(val.v_pointer);
+
+ /* Remove these hooks from each event_by_id hooks list */
+
+ nb_tracefile = ts->parent.tracefiles->len;
+
+ for(j = 0 ; j < nb_tracefile ; j++) {
+ tfs =
+ LTTV_TRACEFILE_STATE(g_array_index(ts->parent.tracefiles,
+ LttvTracefileContext*, j));
+
+ for(k = 0 ; k < hooks->len ; k++) {
+ th = &g_array_index(hooks, LttvTraceHook, k);
+ if (th->mdata == tfs->parent.tf->mdata)
+ lttv_hooks_remove_data(
+ lttv_hooks_by_id_find(tfs->parent.event_by_id, th->id),
+ th->h,
+ th);
+ }
+ }
+ lttv_trace_hook_remove_all(&hooks);
+ g_array_free(hooks, TRUE);
+ }
+}
+
+static gboolean state_save_event_hook(void *hook_data, void *call_data)
+{
+ guint *event_count = (guint*)hook_data;
+
+ /* Only save at LTTV_STATE_SAVE_INTERVAL */
+ if(likely((*event_count)++ < LTTV_STATE_SAVE_INTERVAL))
+ return FALSE;
+ else
+ *event_count = 0;
+
+ LttvTracefileState *self = (LttvTracefileState *)call_data;
+
+ LttvTraceState *tcs = (LttvTraceState *)(self->parent.t_context);
+
+ LttvAttribute *saved_states_tree, *saved_state_tree;
+
+ LttvAttributeValue value;
+
+ saved_states_tree = lttv_attribute_find_subdir(tcs->parent.t_a,
+ LTTV_STATE_SAVED_STATES);
+ saved_state_tree = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL);
+ value = lttv_attribute_add(saved_states_tree,
+ lttv_attribute_get_number(saved_states_tree), LTTV_GOBJECT);
+ *(value.v_gobject) = (GObject *)saved_state_tree;
+ value = lttv_attribute_add(saved_state_tree, LTTV_STATE_TIME, LTTV_TIME);
+ *(value.v_time) = self->parent.timestamp;
+ lttv_state_save(tcs, saved_state_tree);
+ g_debug("Saving state at time %lu.%lu", self->parent.timestamp.tv_sec,
+ self->parent.timestamp.tv_nsec);
+
+ *(tcs->max_time_state_recomputed_in_seek) = self->parent.timestamp;
+
+ return FALSE;
+}
+
+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;
+}
+
+guint lttv_state_current_cpu(LttvTracefileState *tfs)
+{
+ return tfs->cpu;
+}
+
+
+
+#if 0
+static gboolean block_start(void *hook_data, void *call_data)
+{
+ LttvTracefileState *self = (LttvTracefileState *)call_data;
+
+ LttvTracefileState *tfcs;
+
+ LttvTraceState *tcs = (LttvTraceState *)(self->parent.t_context);
+
+ LttEventPosition *ep;
+
+ guint i, nb_block, nb_event, nb_tracefile;
+
+ LttTracefile *tf;
+
+ LttvAttribute *saved_states_tree, *saved_state_tree;
+
+ LttvAttributeValue value;
+
+ ep = ltt_event_position_new();
+
+ nb_tracefile = tcs->parent.tracefiles->len;
+
+ /* Count the number of events added since the last block end in any
+ tracefile. */
+
+ for(i = 0 ; i < nb_tracefile ; i++) {
+ tfcs =
+ LTTV_TRACEFILE_STATE(&g_array_index(tcs->parent.tracefiles,
+ LttvTracefileContext, i));
+ ltt_event_position(tfcs->parent.e, ep);
+ ltt_event_position_get(ep, &nb_block, &nb_event, &tf);
+ tcs->nb_event += nb_event - tfcs->saved_position;
+ tfcs->saved_position = nb_event;
+ }
+ g_free(ep);
+
+ if(tcs->nb_event >= tcs->save_interval) {
+ saved_states_tree = lttv_attribute_find_subdir(tcs->parent.t_a,
+ LTTV_STATE_SAVED_STATES);
+ saved_state_tree = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL);
+ value = lttv_attribute_add(saved_states_tree,
+ lttv_attribute_get_number(saved_states_tree), LTTV_GOBJECT);
+ *(value.v_gobject) = (GObject *)saved_state_tree;
+ value = lttv_attribute_add(saved_state_tree, LTTV_STATE_TIME, LTTV_TIME);
+ *(value.v_time) = self->parent.timestamp;
+ 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);
+ }
+ *(tcs->max_time_state_recomputed_in_seek) = self->parent.timestamp;
+ return FALSE;
+}
+#endif //0
+
+#if 0
+static gboolean block_end(void *hook_data, void *call_data)
+{
+ LttvTracefileState *self = (LttvTracefileState *)call_data;
+
+ LttvTraceState *tcs = (LttvTraceState *)(self->parent.t_context);
+
+ LttTracefile *tf;
+
+ LttEventPosition *ep;
+
+ guint nb_block, nb_event;
+
+ ep = ltt_event_position_new();
+ ltt_event_position(self->parent.e, ep);
+ ltt_event_position_get(ep, &nb_block, &nb_event, &tf);
+ tcs->nb_event += nb_event - self->saved_position + 1;
+ self->saved_position = 0;
+ *(tcs->max_time_state_recomputed_in_seek) = self->parent.timestamp;
+ g_free(ep);
+
+ return FALSE;
+}
+#endif //0
+#if 0
+void lttv_state_save_add_event_hooks(LttvTracesetState *self)
+{
+ LttvTraceset *traceset = self->parent.ts;
+
+ guint i, j, nb_trace, nb_tracefile;
+
+ LttvTraceState *ts;
+
+ LttvTracefileState *tfs;
+
+ LttvTraceHook hook_start, hook_end;
+
+ nb_trace = lttv_traceset_number(traceset);
+ for(i = 0 ; i < nb_trace ; i++) {
+ ts = (LttvTraceState *)self->parent.traces[i];
+
+ lttv_trace_find_hook(ts->parent.t, "core","block_start",NULL,
+ NULL, NULL, block_start, &hook_start);
+ lttv_trace_find_hook(ts->parent.t, "core","block_end",NULL,
+ NULL, NULL, block_end, &hook_end);
+
+ nb_tracefile = ts->parent.tracefiles->len;
+
+ for(j = 0 ; j < nb_tracefile ; j++) {
+ tfs =
+ LTTV_TRACEFILE_STATE(&g_array_index(ts->parent.tracefiles,
+ LttvTracefileContext, j));
+ lttv_hooks_add(lttv_hooks_by_id_find(tfs->parent.event_by_id,
+ hook_start.id), hook_start.h, NULL, LTTV_PRIO_STATE);
+ lttv_hooks_add(lttv_hooks_by_id_find(tfs->parent.event_by_id,
+ hook_end.id), hook_end.h, NULL, LTTV_PRIO_STATE);
+ }
+ }
+}
+#endif //0
+
+void lttv_state_save_add_event_hooks(LttvTracesetState *self)
+{
+ LttvTraceset *traceset = self->parent.ts;
+
+ guint i, j, nb_trace, nb_tracefile;
+
+ LttvTraceState *ts;
+
+ LttvTracefileState *tfs;
+
+
+ nb_trace = lttv_traceset_number(traceset);
+ for(i = 0 ; i < nb_trace ; i++) {
+
+ ts = (LttvTraceState *)self->parent.traces[i];
+ nb_tracefile = ts->parent.tracefiles->len;
+
+ if(ts->has_precomputed_states) continue;
+
+ guint *event_count = g_new(guint, 1);
+ *event_count = 0;
+
+ for(j = 0 ; j < nb_tracefile ; j++) {
+ tfs =
+ LTTV_TRACEFILE_STATE(g_array_index(ts->parent.tracefiles,
+ LttvTracefileContext*, j));
+ lttv_hooks_add(tfs->parent.event,
+ state_save_event_hook,
+ event_count,
+ LTTV_PRIO_STATE);
+
+ }
+ }
+
+ 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)
+{
+ LttvTracesetState *tss = (LttvTracesetState*)(call_data);
+
+ lttv_state_save_add_event_hooks(tss);
+
+ return 0;
+}
+
+
+#if 0
+void lttv_state_save_remove_event_hooks(LttvTracesetState *self)
+{
+ LttvTraceset *traceset = self->parent.ts;
+
+ guint i, j, nb_trace, nb_tracefile;
+
+ LttvTraceState *ts;
+
+ LttvTracefileState *tfs;
+
+ LttvTraceHook hook_start, hook_end;
+
+ nb_trace = lttv_traceset_number(traceset);
+ for(i = 0 ; i < nb_trace ; i++) {
+ ts = LTTV_TRACE_STATE(self->parent.traces[i]);
+
+ lttv_trace_find_hook(ts->parent.t, "core","block_start",NULL,
+ NULL, NULL, block_start, &hook_start);
+
+ lttv_trace_find_hook(ts->parent.t, "core","block_end",NULL,
+ NULL, NULL, block_end, &hook_end);
+
+ nb_tracefile = ts->parent.tracefiles->len;
+
+ for(j = 0 ; j < nb_tracefile ; j++) {
+ tfs =
+ LTTV_TRACEFILE_STATE(&g_array_index(ts->parent.tracefiles,
+ LttvTracefileContext, j));
+ lttv_hooks_remove_data(lttv_hooks_by_id_find(
+ tfs->parent.event_by_id, hook_start.id), hook_start.h, NULL);
+ lttv_hooks_remove_data(lttv_hooks_by_id_find(
+ tfs->parent.event_by_id, hook_end.id), hook_end.h, NULL);
+ }
+ }
+}
+#endif //0
+
+void lttv_state_save_remove_event_hooks(LttvTracesetState *self)
+{
+ LttvTraceset *traceset = self->parent.ts;
+
+ guint i, j, nb_trace, nb_tracefile;
+
+ LttvTraceState *ts;
+
+ LttvTracefileState *tfs;
+
+ 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;
+
+ if(ts->has_precomputed_states) continue;
+
+ guint *event_count = NULL;
+
+ for(j = 0 ; j < nb_tracefile ; j++) {
+ tfs =
+ LTTV_TRACEFILE_STATE(g_array_index(ts->parent.tracefiles,
+ LttvTracefileContext*, j));
+ event_count = lttv_hooks_remove(tfs->parent.event,
+ state_save_event_hook);
+ }
+ if(event_count) g_free(event_count);
+ }
+}
+
+gint lttv_state_save_hook_remove_event_hooks(void *hook_data, void *call_data)
+{
+ LttvTracesetState *tss = (LttvTracesetState*)(call_data);
+
+ lttv_state_save_remove_event_hooks(tss);
+
+ return 0;
+}
+
+void lttv_state_traceset_seek_time_closest(LttvTracesetState *self, LttTime t)
+{
+ LttvTraceset *traceset = self->parent.ts;
+
+ guint i, nb_trace;
+
+ int min_pos, mid_pos, max_pos;
+
+ guint call_rest = 0;
+
+ LttvTraceState *tcs;
+
+ LttvAttributeValue value;
+
+ LttvAttributeType type;
+
+ LttvAttributeName name;
+
+ gboolean is_named;
+
+ LttvAttribute *saved_states_tree, *saved_state_tree, *closest_tree = NULL;
+
+ //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];
+
+ if(ltt_time_compare(t, *(tcs->max_time_state_recomputed_in_seek)) < 0) {
+ saved_states_tree = lttv_attribute_find_subdir(tcs->parent.t_a,
+ LTTV_STATE_SAVED_STATES);
+ min_pos = -1;
+
+ if(saved_states_tree) {
+ max_pos = lttv_attribute_get_number(saved_states_tree) - 1;
+ mid_pos = max_pos / 2;
+ while(min_pos < max_pos) {
+ type = lttv_attribute_get(saved_states_tree, mid_pos, &name, &value,
+ &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,
+ &value);
+ g_assert(type == LTTV_TIME);
+ if(ltt_time_compare(*(value.v_time), t) < 0) {
+ min_pos = mid_pos;
+ closest_tree = saved_state_tree;
+ }
+ else max_pos = mid_pos - 1;
+
+ mid_pos = (min_pos + max_pos + 1) / 2;
+ }
+ }
+
+ /* 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 */
+ else {
+ restore_init_state(tcs);
+ lttv_process_trace_seek_time(&(tcs->parent), ltt_time_zero);
+ }
+ }
+ /* We want to seek quickly without restoring/updating the state */
+ else {
+ restore_init_state(tcs);
+ lttv_process_trace_seek_time(&(tcs->parent), t);
+ }
+ }
+ if(!call_rest) g_info("NOT Calling restore");
+}
+
+
+static void
+traceset_state_instance_init (GTypeInstance *instance, gpointer g_class)
+{
+}
+
+
+static void
+traceset_state_finalize (LttvTracesetState *self)
+{
+ G_OBJECT_CLASS(g_type_class_peek(LTTV_TRACESET_CONTEXT_TYPE))->
+ finalize(G_OBJECT(self));
+}
+
+
+static void
+traceset_state_class_init (LttvTracesetContextClass *klass)
+{
+ GObjectClass *gobject_class = G_OBJECT_CLASS(klass);
+
+ gobject_class->finalize = (void (*)(GObject *self)) traceset_state_finalize;
+ klass->init = (void (*)(LttvTracesetContext *self, LttvTraceset *ts))init;
+ klass->fini = (void (*)(LttvTracesetContext *self))fini;
+ klass->new_traceset_context = new_traceset_context;
+ klass->new_trace_context = new_trace_context;
+ klass->new_tracefile_context = new_tracefile_context;
+}
+
+
+GType
+lttv_traceset_state_get_type(void)
+{
+ static GType type = 0;
+ if (type == 0) {
+ static const GTypeInfo info = {
+ sizeof (LttvTracesetStateClass),
+ NULL, /* base_init */
+ NULL, /* base_finalize */
+ (GClassInitFunc) traceset_state_class_init, /* class_init */
+ NULL, /* class_finalize */
+ NULL, /* class_data */
+ sizeof (LttvTracesetState),
+ 0, /* n_preallocs */
+ (GInstanceInitFunc) traceset_state_instance_init, /* instance_init */
+ NULL /* value handling */
+ };
+
+ type = g_type_register_static (LTTV_TRACESET_CONTEXT_TYPE, "LttvTracesetStateType",
+ &info, 0);
+ }
+ return type;
+}
+
+
+static void
+trace_state_instance_init (GTypeInstance *instance, gpointer g_class)
+{
+}
+
+
+static void
+trace_state_finalize (LttvTraceState *self)
+{
+ G_OBJECT_CLASS(g_type_class_peek(LTTV_TRACE_CONTEXT_TYPE))->
+ finalize(G_OBJECT(self));
+}
+
+
+static void
+trace_state_class_init (LttvTraceStateClass *klass)
+{
+ GObjectClass *gobject_class = G_OBJECT_CLASS(klass);
+
+ gobject_class->finalize = (void (*)(GObject *self)) trace_state_finalize;
+ klass->state_save = state_save;
+ klass->state_restore = state_restore;
+ klass->state_saved_free = state_saved_free;
+}
+
+
+GType
+lttv_trace_state_get_type(void)
+{
+ static GType type = 0;
+ if (type == 0) {
+ static const GTypeInfo info = {
+ sizeof (LttvTraceStateClass),
+ NULL, /* base_init */
+ NULL, /* base_finalize */
+ (GClassInitFunc) trace_state_class_init, /* class_init */
+ NULL, /* class_finalize */
+ NULL, /* class_data */
+ sizeof (LttvTraceState),
+ 0, /* n_preallocs */
+ (GInstanceInitFunc) trace_state_instance_init, /* instance_init */
+ NULL /* value handling */
+ };
+
+ type = g_type_register_static (LTTV_TRACE_CONTEXT_TYPE,
+ "LttvTraceStateType", &info, 0);
+ }
+ return type;
+}
+
+
+static void
+tracefile_state_instance_init (GTypeInstance *instance, gpointer g_class)
+{
+}
+
+
+static void
+tracefile_state_finalize (LttvTracefileState *self)
+{
+ G_OBJECT_CLASS(g_type_class_peek(LTTV_TRACEFILE_CONTEXT_TYPE))->
+ finalize(G_OBJECT(self));
+}
+
+
+static void
+tracefile_state_class_init (LttvTracefileStateClass *klass)
+{
+ GObjectClass *gobject_class = G_OBJECT_CLASS(klass);
+
+ gobject_class->finalize = (void (*)(GObject *self)) tracefile_state_finalize;
+}
+
+
+GType
+lttv_tracefile_state_get_type(void)
+{
+ static GType type = 0;
+ if (type == 0) {
+ static const GTypeInfo info = {
+ sizeof (LttvTracefileStateClass),
+ NULL, /* base_init */
+ NULL, /* base_finalize */
+ (GClassInitFunc) tracefile_state_class_init, /* class_init */
+ NULL, /* class_finalize */
+ NULL, /* class_data */
+ sizeof (LttvTracefileState),
+ 0, /* n_preallocs */
+ (GInstanceInitFunc) tracefile_state_instance_init, /* instance_init */
+ NULL /* value handling */
+ };
+
+ type = g_type_register_static (LTTV_TRACEFILE_CONTEXT_TYPE,
+ "LttvTracefileStateType", &info, 0);
+ }
+ return type;
+}
+
+
+static void module_init()
+{
+ LTTV_STATE_UNNAMED = g_quark_from_string("");
+ LTTV_STATE_UNBRANDED = g_quark_from_string("");
+ 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");
+ 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");
+ LTTV_STATE_SUBMODE_NONE = g_quark_from_string("NONE");
+ LTTV_STATE_WAIT_FORK = g_quark_from_string("WAIT_FORK");
+ LTTV_STATE_WAIT_CPU = g_quark_from_string("WAIT_CPU");
+ LTTV_STATE_EXIT = g_quark_from_string("EXIT");
+ LTTV_STATE_ZOMBIE = g_quark_from_string("ZOMBIE");
+ 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_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");
+ LTTV_STATE_TIME = g_quark_from_string("time");
+ LTTV_STATE_HOOKS = g_quark_from_string("saved state hooks");
+ 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_CPUS = g_quark_from_string("cpu count");
+ LTTV_STATE_RESOURCE_IRQS = g_quark_from_string("irq resource states");
+ LTTV_STATE_RESOURCE_SOFT_IRQS = g_quark_from_string("soft irq resource states");
+ LTTV_STATE_RESOURCE_TRAPS = g_quark_from_string("trap resource states");
+ LTTV_STATE_RESOURCE_BLKDEVS = g_quark_from_string("blkdevs resource states");
+
+ LTT_CHANNEL_FD_STATE = g_quark_from_string("fd_state");
+ LTT_CHANNEL_GLOBAL_STATE = g_quark_from_string("global_state");
+ LTT_CHANNEL_IRQ_STATE = g_quark_from_string("irq_state");
+ LTT_CHANNEL_MODULE_STATE = g_quark_from_string("module_state");
+ LTT_CHANNEL_NETIF_STATE = g_quark_from_string("netif_state");
+ LTT_CHANNEL_SOFTIRQ_STATE = g_quark_from_string("softirq_state");
+ LTT_CHANNEL_SWAP_STATE = g_quark_from_string("swap_state");
+ LTT_CHANNEL_SYSCALL_STATE = g_quark_from_string("syscall_state");
+ LTT_CHANNEL_TASK_STATE = g_quark_from_string("task_state");
+ LTT_CHANNEL_VM_STATE = g_quark_from_string("vm_state");
+ LTT_CHANNEL_KPROBE_STATE = g_quark_from_string("kprobe_state");
+ LTT_CHANNEL_FS = g_quark_from_string("fs");
+ LTT_CHANNEL_KERNEL = g_quark_from_string("kernel");
+ LTT_CHANNEL_MM = g_quark_from_string("mm");
+ LTT_CHANNEL_USERSPACE = g_quark_from_string("userspace");
+ LTT_CHANNEL_BLOCK = g_quark_from_string("block");
+
+ LTT_EVENT_SYSCALL_ENTRY = g_quark_from_string("syscall_entry");
+ LTT_EVENT_SYSCALL_EXIT = g_quark_from_string("syscall_exit");
+ LTT_EVENT_TRAP_ENTRY = g_quark_from_string("trap_entry");
+ LTT_EVENT_TRAP_EXIT = g_quark_from_string("trap_exit");
+ LTT_EVENT_PAGE_FAULT_ENTRY = g_quark_from_string("page_fault_entry");
+ LTT_EVENT_PAGE_FAULT_EXIT = g_quark_from_string("page_fault_exit");
+ LTT_EVENT_PAGE_FAULT_NOSEM_ENTRY = g_quark_from_string("page_fault_nosem_entry");
+ LTT_EVENT_PAGE_FAULT_NOSEM_EXIT = g_quark_from_string("page_fault_nosem_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_RAISE = g_quark_from_string("softirq_raise");
+ LTT_EVENT_SOFT_IRQ_ENTRY = g_quark_from_string("softirq_entry");
+ LTT_EVENT_SOFT_IRQ_EXIT = g_quark_from_string("softirq_exit");
+ 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_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_EVENT_LIST_INTERRUPT = g_quark_from_string("interrupt");
+ LTT_EVENT_SYS_CALL_TABLE = g_quark_from_string("sys_call_table");
+ LTT_EVENT_SOFTIRQ_VEC = g_quark_from_string("softirq_vec");
+ LTT_EVENT_KPROBE_TABLE = g_quark_from_string("kprobe_table");
+ LTT_EVENT_KPROBE = g_quark_from_string("kprobe");
+
+ 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_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");
+ LTT_FIELD_MODE = g_quark_from_string("mode");
+ LTT_FIELD_SUBMODE = g_quark_from_string("submode");
+ 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");
+ LTT_FIELD_ACTION = g_quark_from_string("action");
+ LTT_FIELD_ID = g_quark_from_string("id");
+ LTT_FIELD_ADDRESS = g_quark_from_string("address");
+ LTT_FIELD_SYMBOL = g_quark_from_string("symbol");
+ LTT_FIELD_IP = g_quark_from_string("ip");
+
+ 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_SOFT_IRQ = g_quark_from_string("softirq");
+ 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()
+{
+}
+
+
+LTTV_MODULE("state", "State computation", \
+ "Update the system state, possibly saving it at intervals", \
+ module_init, module_destroy)
+
+
+
projects / lttv.git / blobdiff