--- /dev/null
+/* This file is part of the Linux Trace Toolkit viewer
+ * Copyright (C) 2008 Pierre-Marc Fournier
+ *
+ * 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <lttv/lttv.h>
+#include <lttv/option.h>
+#include <lttv/module.h>
+#include <lttv/hook.h>
+#include <lttv/attribute.h>
+#include <lttv/iattribute.h>
+#include <lttv/stats.h>
+#include <lttv/filter.h>
+#include <lttv/print.h>
+#include <ltt/ltt.h>
+#include <ltt/event.h>
+#include <ltt/trace.h>
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <glib.h>
+#include <stdlib.h>
+
+#include "sstack.h"
+
+static LttvHooks
+ *before_traceset,
+ *after_traceset,
+// *before_trace,
+ *event_hook;
+
+static int depanalysis_range_pid = -1;
+static int depanalysis_range_pid_searching = -1;
+static int depanalysis_use_time=0;
+static int depanalysis_event_limit = -1;
+static LttTime depanalysis_time1, depanalysis_time2;
+static char *arg_t1_str,*arg_t2_str;
+static int statedump_finished = 0;
+
+
+struct llev_state_info_irq {
+ int irq;
+};
+
+struct llev_state_info_softirq {
+ int softirq;
+};
+
+struct llev_state_info_syscall {
+ int syscall_id;
+
+ int substate;
+
+ void *private;
+};
+
+struct llev_state_info_syscall__open {
+ GQuark filename;
+};
+
+struct llev_state_info_syscall__read {
+ GQuark filename;
+};
+
+struct llev_state_info_syscall__poll {
+ GQuark filename;
+};
+
+struct llev_state_info_preempted {
+ int prev_state;
+};
+
+struct hlev_state_info_blocked {
+ int syscall_id;
+ unsigned char trap; /* flag */
+ int substate;
+
+ /* Garray of pointers to struct process_state that reflect the
+ * low-level state stack when respectively entering and exiting the blocked
+ * state.
+ */
+ GArray *llev_state_entry;
+ GArray *llev_state_exit;
+
+ int pid_exit; /* FIXME: it's not pretty to have this here; find this info elsewhere */
+ LttTime time_woken;
+
+ void *private;
+};
+
+struct hlev_state_info_blocked__open {
+ GQuark filename;
+};
+
+struct hlev_state_info_blocked__read {
+ GQuark filename;
+};
+
+struct hlev_state_info_blocked__poll {
+ GQuark filename;
+};
+
+struct hlev_state_info_interrupted_irq {
+ int irq;
+};
+
+struct hlev_state_info_interrupted_softirq {
+ int softirq;
+};
+
+struct summary_tree_node {
+ char *name;
+ GHashTable *children;
+ LttTime duration;
+ GArray *episodes;
+ int id_for_episodes;
+};
+
+struct state_info {
+ char name[40];
+ int size_priv;
+ char *tree_path[6];
+};
+
+struct state_info llev_state_infos[] = {
+ { "UNKNOWN", 0, { NULL } },
+ { "RUNNING", 0, { NULL } },
+ { "SYSCALL", sizeof(struct llev_state_info_syscall), { NULL } },
+ { "IRQ", sizeof(struct llev_state_info_irq), { NULL } },
+ { "SOFTIRQ", sizeof(struct llev_state_info_softirq), { NULL } },
+ { "TRAP", 0, { NULL } },
+ { "PREEMPTED", sizeof(struct llev_state_info_preempted), { NULL } },
+};
+
+struct state_info hlev_state_infos[] = {
+ { "UNKNOWN", 0, { "Total", "Unknown", NULL } },
+ { "RUNNING", 0, { "Total", "Working", NULL } },
+ { "BLOCKED", sizeof(struct hlev_state_info_blocked), { "Total", "Blocked", NULL } },
+ { "INTERRUPTED_IRQ", sizeof(struct hlev_state_info_interrupted_irq), { "Total", "Interrupted", "IRQ", NULL } },
+ { "INTERRUPTED_SOFTIRQ", sizeof(struct hlev_state_info_interrupted_softirq), { "Total", "Interrupted", "SoftIRQ", NULL } },
+ { "INTERRUPTED_CPU", 0, { "Total", "Interrupted", "Preempted", NULL } },
+ { "INTERRUPTED_POST_BLOCK", 0, { "Total", "Interrupted", "Waiting schedule after blocking", NULL } },
+};
+
+enum llev_state {
+ LLEV_UNKNOWN=0,
+ LLEV_RUNNING,
+ LLEV_SYSCALL,
+ LLEV_IRQ,
+ LLEV_SOFTIRQ,
+ LLEV_TRAP,
+ LLEV_PREEMPTED,
+};
+
+enum llev_syscall_substate {
+ LLEV_SYSCALL__UNDEFINED,
+ LLEV_SYSCALL__OPEN,
+ LLEV_SYSCALL__READ,
+ LLEV_SYSCALL__POLL,
+};
+
+enum hlev_event {
+ HLEV_EVENT_TRY_WAKEUP=0,
+};
+
+enum hlev_state {
+ HLEV_UNKNOWN=0,
+ HLEV_RUNNING,
+ HLEV_BLOCKED,
+ HLEV_INTERRUPTED_IRQ,
+ HLEV_INTERRUPTED_SOFTIRQ,
+ HLEV_INTERRUPTED_CPU,
+ HLEV_INTERRUPTED_POST_BLOCK,
+};
+
+enum hlev_state_blocked {
+ HLEV_BLOCKED__UNDEFINED,
+ HLEV_BLOCKED__OPEN,
+ HLEV_BLOCKED__READ,
+ HLEV_BLOCKED__POLL,
+};
+
+struct sstack_event {
+ int event_type;
+ void *private;
+};
+
+struct try_wakeup_event {
+ int pid; /* this sould be more precise avec pid may be reused */
+ LttTime time;
+ struct process *waker;
+};
+
+struct process_state {
+ int bstate;
+ int cause_type;
+ void *private;
+
+ LttTime time_begin;
+ LttTime time_end;
+};
+
+struct process_with_state {
+ struct process *process;
+ struct process_state state;
+};
+
+#define PROCESS_STATE_STACK_SIZE 10
+struct process {
+ int pid;
+ GQuark name;
+ int parent;
+
+ struct sstack *stack;
+ struct process_state *llev_state_stack[PROCESS_STATE_STACK_SIZE];
+ int stack_current;
+ struct process_state *hlev_state;
+ GArray *hlev_history;
+};
+
+static inline void *old_process_state_private_data(struct process *p)
+{
+ return p->llev_state_stack[p->stack_current]->private;
+}
+
+static inline struct process_state *process_find_state(struct process *p, enum llev_state st)
+{
+ int i;
+
+ for(i=p->stack->array->len-1; i>=0; i--) {
+ struct sstack_item *item = g_array_index(p->stack->array, struct sstack_item *, i);
+
+ struct process_with_state *pwstate = item->data_val;
+ if(pwstate->state.bstate == st) {
+ return &pwstate->state;
+ }
+ }
+
+ return NULL;
+}
+
+static int find_pos_in_stack(enum llev_state lls, struct process *p)
+{
+ int i;
+ for(i=p->stack_current; i>=0; i--) {
+ if(p->llev_state_stack[i]->bstate == lls)
+ return i;
+ }
+
+ return -1;
+}
+
+static struct process_state *find_in_stack(enum llev_state lls, struct process *p)
+{
+ int result;
+
+ result = find_pos_in_stack(lls, p);
+
+ if(result >= 0)
+ return p->llev_state_stack[result];
+ else
+ return NULL;
+
+}
+
+/* called back from sstack on deletion of a data_val which is
+ * a struct process_with_state
+ */
+
+static void delete_data_val(struct process_with_state *pwstate)
+{
+ // FIXME: Free this also
+ //g_free(pwstate->state.private);
+
+ // FIXME: this is really ugly. Don't free the pwstate if the state is LLEV_RUNNING.
+ // LLEV_RUNNING is a special case that's being processed and deleted immediately after
+ // being inserted on the sstack, to prevent state begin accumulated because it couldn't
+ // be processed before the end of the trace. If we free the state, we get invalid memory
+ // reads when looking at it on the state_stack.
+ //if(pwstate->state.bstate != LLEV_RUNNING)
+ // g_free(pwstate);
+}
+
+static struct sstack_item *prepare_push_item(struct process *p, enum llev_state st, LttTime t)
+{
+ struct process_with_state *pwstate = g_malloc(sizeof(struct process_with_state));
+ struct sstack_item *item;
+
+ int wait_for_pop = 0;
+
+ if(st == LLEV_SYSCALL) {
+ /* We need to push LLEV_SYSCALL as wait_for_pop because it depends on some of
+ * its children. If we don't do this, it's going to get processed immediately
+ * by the sstack and we might miss some details about it that will come later.
+ */
+ wait_for_pop = 1;
+ }
+
+ item = sstack_item_new_push(wait_for_pop);
+
+ //printf("pushing in context of %d\n", p->pid);
+
+ pwstate->process = p;
+ pwstate->state.bstate = st;
+ pwstate->state.time_begin = t;
+ pwstate->state.private = g_malloc(llev_state_infos[st].size_priv);
+
+ item->data_val = pwstate;
+ item->delete_data_val = delete_data_val;
+}
+
+static void *item_private(struct sstack_item *item)
+{
+ struct process_with_state *pwstate = item->data_val;
+ return pwstate->state.private;
+}
+
+static void commit_item(struct process *p, struct sstack_item *item)
+{
+ sstack_add_item(p->stack, item);
+}
+
+static void old_process_push_llev_state(struct process *p, struct process_state *pstate)
+{
+ if(++p->stack_current >= PROCESS_STATE_STACK_SIZE) {
+ fprintf(stderr, "depanalysis: internal process stack overflow\n");
+ abort();
+ }
+
+ p->llev_state_stack[p->stack_current] = pstate;
+}
+
+static void live_complete_process_push_llev_state(struct process *p, enum llev_state st, LttTime t)
+{
+ struct process_state *pstate = g_malloc(sizeof(struct process_state));
+
+ pstate->bstate = st;
+ pstate->time_begin = t;
+ pstate->private = g_malloc(llev_state_infos[st].size_priv);
+
+ old_process_push_llev_state(p, pstate);
+}
+
+static void prepare_pop_item_commit_nocheck(struct process *p, enum llev_state st, LttTime t)
+{
+ struct process_with_state *pwstate;
+ struct sstack_item *item = sstack_item_new_pop();
+
+ int push_idx;
+
+ if(p->stack->pushes->len > 0)
+ push_idx = g_array_index(p->stack->pushes, int, p->stack->pushes->len-1);
+ else
+ push_idx = -1;
+
+ if(push_idx >= 0) {
+ pwstate = g_array_index(p->stack->array, struct sstack_item *, push_idx)->data_val;
+ pwstate->process = p;
+ pwstate->state.time_end = t;
+ item->data_val = pwstate;
+ /* don't set delete_data_val because we use the same pwstate as push, and we don't want to free it twice */
+ }
+ else {
+
+ pwstate = g_malloc(sizeof(struct process_with_state));
+ pwstate->process = p;
+ item->data_val = pwstate;
+ pwstate->state.time_end = t;
+ pwstate->state.bstate = st;
+ }
+
+ sstack_add_item(p->stack, item);
+
+}
+
+static void prepare_pop_item_commit(struct process *p, enum llev_state st, LttTime t)
+{
+ struct process_with_state *pwstate;
+ struct sstack_item *item = sstack_item_new_pop();
+
+ int push_idx;
+
+ if(p->stack->pushes->len > 0)
+ push_idx = g_array_index(p->stack->pushes, int, p->stack->pushes->len-1);
+ else
+ push_idx = -1;
+
+ if(push_idx >= 0) {
+ /* FIXME: ugly workaround for kernel bug that generates two kernel_arch_syscall_exit on fork.
+ * The bug only occurs upon creation of new processes. But these processes always have
+ * a LLEV_RUNNING at index 0. */
+ if(push_idx >= p->stack->array->len)
+ return;
+
+ pwstate = g_array_index(p->stack->array, struct sstack_item *, push_idx)->data_val;
+
+ if(pwstate->state.bstate != st) {
+ /* FIXME: ugly workaround for kernel bug that generates two kernel_arch_syscall_exit on fork */
+ if(st != LLEV_SYSCALL) {
+ printf("bad pop! at ");
+ print_time(t);
+ printf("\n");
+ print_stack(p->stack);
+ abort();
+ }
+ else {
+ /* case where we have a double syscall_exit */
+ return;
+ }
+ }
+ }
+
+ prepare_pop_item_commit_nocheck(p, st, t);
+}
+
+
+static int try_pop_blocked_llev_preempted(struct process *p, LttTime t)
+{
+ int push_idx;
+ struct process_with_state *pwstate;
+
+ if(p->stack->pushes->len > 0)
+ push_idx = g_array_index(p->stack->pushes, int, p->stack->pushes->len-1);
+ else
+ push_idx = -1;
+
+ if(push_idx >= 0) {
+ pwstate = g_array_index(p->stack->array, struct sstack_item *, push_idx)->data_val;
+
+ if(!(pwstate->state.bstate == LLEV_PREEMPTED && ((struct llev_state_info_preempted *)pwstate->state.private)->prev_state > 0)) {
+ printf("double try wake up\n");
+ return 0;
+ }
+ }
+
+ prepare_pop_item_commit_nocheck(p, LLEV_PREEMPTED, t);
+ return 1;
+}
+
+static void old_process_pop_llev_state(struct process *p, struct process_state *pstate)
+{
+ /* Ensure we are really popping the current state */
+ /* FIXME: pstate->bstate is uninitialized? */
+ // Commenting because it does not work. The way things work now, this check cannot work.
+ //if(p->llev_state_stack[p->stack_current]->bstate != LLEV_UNKNOWN && p->llev_state_stack[p->stack_current]->bstate != pstate->bstate) {
+ // printf("ERROR! bad pop!\n");
+ // abort();
+ //}
+
+ /* Actually change the that position */
+ if(p->stack_current >= 0)
+ p->stack_current--;
+
+ /* If stack empty, we must put something in it */
+ if(p->stack_current == -1) {
+ if(pstate->bstate == LLEV_SYSCALL) {
+ //process_push_llev_state(p, LLEV_RUNNING, pstate->time_end);
+ live_complete_process_push_llev_state(p, LLEV_RUNNING, pstate->time_end);
+ }
+ else {
+ live_complete_process_push_llev_state(p, LLEV_UNKNOWN, pstate->time_end);
+ }
+ }
+}
+
+static GHashTable *process_hash_table;
+static GHashTable *syscall_table;
+static GHashTable *irq_table;
+static GHashTable *softirq_table;
+
+/* Insert the hooks before and after each trace and tracefile, and for each
+ event. Print a global header. */
+
+static FILE *a_file;
+
+static GString *a_string;
+
+static gboolean write_traceset_header(void *hook_data, void *call_data)
+{
+ LttvTracesetContext *tc = (LttvTracesetContext *)call_data;
+
+ g_info("Traceset header");
+
+ /* Print the trace set header */
+ fprintf(a_file,"Trace set contains %d traces\n\n",
+ lttv_traceset_number(tc->ts));
+
+ return FALSE;
+}
+
+inline void print_time(LttTime t)
+{
+ //printf("%lu.%lu", t.tv_sec, t.tv_nsec);
+ double f;
+ f = (double)t.tv_sec + ((double)t.tv_nsec)/1000000000.0;
+ printf("%.9f", f);
+}
+
+GArray *oldstyle_stack_to_garray(struct process_state_stack **oldstyle_stack, int current)
+{
+ GArray *retval;
+ int i;
+
+ retval = g_array_new(FALSE, FALSE, sizeof(struct process_state_stack *));
+
+ for(i=0; i<current; i++) {
+ g_array_append_val(retval, oldstyle_stack[i]);
+ }
+
+ return retval;
+}
+
+static void update_hlev_state(struct process *p, LttTime t)
+{
+ int i;
+
+ enum hlev_state new_hlev;
+
+ for(i=p->stack_current; i>=0; i--) {
+ enum llev_state st;
+ st = p->llev_state_stack[i]->bstate;
+
+ if(st == LLEV_RUNNING || st == LLEV_TRAP || st == LLEV_SYSCALL) {
+ new_hlev = HLEV_RUNNING;
+ break;
+ }
+ else if(st == LLEV_IRQ) {
+ new_hlev = HLEV_INTERRUPTED_IRQ;
+ break;
+ }
+ else if(st == LLEV_SOFTIRQ) {
+ new_hlev = HLEV_INTERRUPTED_SOFTIRQ;
+ break;
+ }
+ else if(st == LLEV_PREEMPTED) {
+ int prev_state = ((struct llev_state_info_preempted *) old_process_state_private_data(p))->prev_state;
+
+ if(prev_state == 0) {
+ new_hlev = HLEV_INTERRUPTED_CPU;
+ }
+ else if(prev_state == -1) {
+ new_hlev = HLEV_INTERRUPTED_POST_BLOCK;
+ }
+ else {
+ new_hlev = HLEV_BLOCKED;
+ }
+ break;
+ }
+ else if(st == LLEV_UNKNOWN) {
+ new_hlev = HLEV_UNKNOWN;
+ break;
+ }
+ else {
+ abort();
+ }
+ }
+
+ /* If no state change, do nothing */
+ if(p->hlev_state != NULL && new_hlev == p->hlev_state->bstate) {
+ return;
+ }
+
+ p->hlev_state->time_end = t;
+ /* This check is here because we initially put HLEV_UNKNOWN as hlev state, but in the case
+ * of processes newly created, it is immediately replaced by HLEV_BLOCKED. In order to avoid
+ * having a UNKNOWN state of duration 0 in the summary, we don't add it. This isn't as elegant
+ * as it ought to be.
+ */
+ if(ltt_time_compare(p->hlev_state->time_begin, p->hlev_state->time_end) != 0)
+ g_array_append_val(p->hlev_history, p->hlev_state);
+ p->hlev_state = g_malloc(sizeof(struct process_state));
+ p->hlev_state->bstate = new_hlev;
+ p->hlev_state->time_begin = t;
+ p->hlev_state->private = g_malloc(hlev_state_infos[new_hlev].size_priv);
+
+ //printf("depanalysis: now at hlev state %s\n", hlev_state_infos[new_hlev].name);
+
+ /* Set private data */
+ switch(p->hlev_state->bstate) {
+ case HLEV_UNKNOWN:
+ break;
+ case HLEV_RUNNING:
+ break;
+ case HLEV_BLOCKED: {
+ struct hlev_state_info_blocked *hlev_blocked_private = p->hlev_state->private;
+ //struct process_state *ps = find_in_stack(LLEV_SYSCALL, p);
+ int syscall_pos = find_pos_in_stack(LLEV_SYSCALL, p);
+ int trap_pos = find_pos_in_stack(LLEV_TRAP, p);
+
+ /* init vals */
+ hlev_blocked_private->syscall_id = 1;
+ hlev_blocked_private->trap = 0;
+ hlev_blocked_private->substate = HLEV_BLOCKED__UNDEFINED;
+ hlev_blocked_private->private = NULL;
+ hlev_blocked_private->llev_state_entry = oldstyle_stack_to_garray(p->llev_state_stack, p->stack_current);
+ hlev_blocked_private->llev_state_exit = NULL;
+
+ //g_assert(syscall_pos >= 0 || trap_pos >= 0);
+
+ if(trap_pos > syscall_pos) {
+ hlev_blocked_private->trap = 1;
+ }
+
+ /* initial value, may be changed below */
+ hlev_blocked_private->substate = HLEV_BLOCKED__UNDEFINED;
+
+ if(syscall_pos >= 0) {
+ struct process_state *ps = p->llev_state_stack[syscall_pos];
+ struct llev_state_info_syscall *llev_syscall_private = (struct llev_state_info_syscall *) ps->private;
+ hlev_blocked_private->syscall_id = llev_syscall_private->syscall_id;
+
+ if(llev_syscall_private->substate == LLEV_SYSCALL__OPEN) {
+ struct llev_state_info_syscall__open *llev_syscall_open_private;
+ struct hlev_state_info_blocked__open *hlev_blocked_open_private;
+ llev_syscall_open_private = llev_syscall_private->private;
+ hlev_blocked_private->substate = HLEV_BLOCKED__OPEN;
+ hlev_blocked_open_private = g_malloc(sizeof(struct hlev_state_info_blocked__open));
+ hlev_blocked_private->private = hlev_blocked_open_private;
+ hlev_blocked_open_private->filename = llev_syscall_open_private->filename;
+
+ //printf("depanalysis: blocked in an open!\n");
+ }
+ else if(llev_syscall_private->substate == LLEV_SYSCALL__READ) {
+ struct llev_state_info_syscall__read *llev_syscall_read_private;
+ struct hlev_state_info_blocked__read *hlev_blocked_read_private;
+ llev_syscall_read_private = llev_syscall_private->private;
+ hlev_blocked_private->substate = HLEV_BLOCKED__READ;
+ hlev_blocked_read_private = g_malloc(sizeof(struct hlev_state_info_blocked__read));
+ hlev_blocked_private->private = hlev_blocked_read_private;
+ hlev_blocked_read_private->filename = llev_syscall_read_private->filename;
+
+ //printf("depanalysis: blocked in a read!\n");
+ }
+ else if(llev_syscall_private->substate == LLEV_SYSCALL__POLL) {
+ struct llev_state_info_syscall__poll *llev_syscall_poll_private;
+ struct hlev_state_info_blocked__poll *hlev_blocked_poll_private;
+ llev_syscall_poll_private = llev_syscall_private->private;
+ hlev_blocked_private->substate = HLEV_BLOCKED__POLL;
+ hlev_blocked_poll_private = g_malloc(sizeof(struct hlev_state_info_blocked__poll));
+ hlev_blocked_private->private = hlev_blocked_poll_private;
+ hlev_blocked_poll_private->filename = llev_syscall_poll_private->filename;
+
+ //printf("depanalysis: blocked in a read!\n");
+ }
+ }
+ else {
+ hlev_blocked_private->syscall_id = -1;
+ }
+
+ break;
+ }
+ case HLEV_INTERRUPTED_IRQ: {
+ struct hlev_state_info_interrupted_irq *sinfo = p->hlev_state->private;
+ struct process_state *ps = find_in_stack(LLEV_IRQ, p);
+ if(ps == NULL)
+ abort();
+ else
+ sinfo->irq = ((struct llev_state_info_irq *) ps->private)->irq;
+ break;
+ }
+ case HLEV_INTERRUPTED_SOFTIRQ: {
+ struct hlev_state_info_interrupted_softirq *sinfo = p->hlev_state->private;
+ struct process_state *ps = find_in_stack(LLEV_SOFTIRQ, p);
+ if(ps == NULL)
+ abort();
+ else
+ sinfo->softirq = ((struct llev_state_info_softirq *) ps->private)->softirq;
+ break;
+ }
+ default:
+ break;
+ };
+}
+
+static gint compare_summary_tree_node_times(gconstpointer a, gconstpointer b)
+{
+ struct summary_tree_node *n1 = (struct summary_tree_node *) a;
+ struct summary_tree_node *n2 = (struct summary_tree_node *) b;
+
+ return ltt_time_compare(n2->duration, n1->duration);
+}
+
+/* Print an item of the simple summary tree, and recurse, printing its children.
+ *
+ * If depth == -1, this is the root: we don't print a label, we only recurse into
+ * the children.
+ */
+
+static void print_summary_item(struct summary_tree_node *node, int depth)
+{
+ GList *vals;
+
+ if(depth >= 0) {
+ printf("\t%*s (", strlen(node->name)+2*depth, node->name);
+ print_time(node->duration);
+ printf(") <%d>\n", node->id_for_episodes);
+ }
+
+ if(!node->children)
+ return;
+
+ vals = g_hash_table_get_values(node->children);
+
+ /* sort the values */
+ vals = g_list_sort(vals, compare_summary_tree_node_times);
+
+ while(vals) {
+ print_summary_item((struct summary_tree_node *)vals->data, depth+1);
+ vals = vals->next;
+ }
+
+ /* we must free the list returned by g_hash_table_get_values() */
+ g_list_free(vals);
+}
+
+static inline void print_irq(int irq)
+{
+ printf("IRQ %d [%s]", irq, g_quark_to_string(g_hash_table_lookup(irq_table, &irq)));
+}
+
+static inline void print_softirq(int softirq)
+{
+ printf("SoftIRQ %d [%s]", softirq, g_quark_to_string(g_hash_table_lookup(softirq_table, &softirq)));
+}
+
+static inline void print_pid(int pid)
+{
+ struct process *event_process_info = g_hash_table_lookup(process_hash_table, &pid);
+
+ char *pname;
+
+ if(event_process_info == NULL)
+ pname = "?";
+ else
+ pname = g_quark_to_string(event_process_info->name);
+ printf("%d [%s]", pid, pname);
+}
+
+static void modify_path_with_private(GArray *path, struct process_state *pstate)
+{
+ //GString tmps = g_string_new("");
+ char *tmps;
+
+ // FIXME: fix this leak
+ switch(pstate->bstate) {
+ case HLEV_INTERRUPTED_IRQ:
+ asprintf(&tmps, "IRQ %d [%s]", ((struct hlev_state_info_interrupted_irq *)pstate->private)->irq, g_quark_to_string(g_hash_table_lookup(irq_table, &((struct hlev_state_info_interrupted_irq *)pstate->private)->irq)));
+ g_array_append_val(path, tmps);
+ break;
+ case HLEV_INTERRUPTED_SOFTIRQ:
+ asprintf(&tmps, "SoftIRQ %d [%s]", ((struct hlev_state_info_interrupted_softirq *)pstate->private)->softirq, g_quark_to_string(g_hash_table_lookup(softirq_table, &((struct hlev_state_info_interrupted_softirq *)pstate->private)->softirq)));
+ g_array_append_val(path, tmps);
+ break;
+ case HLEV_BLOCKED: {
+ struct hlev_state_info_blocked *hlev_blocked_private = (struct hlev_state_info_blocked *)pstate->private;
+
+ if(hlev_blocked_private->trap) {
+ char *ptr = "Trap";
+ g_array_append_val(path, ptr);
+ }
+
+ if(hlev_blocked_private->syscall_id == -1) {
+ char *ptr = "Userspace";
+ g_array_append_val(path, ptr);
+ }
+ else {
+ asprintf(&tmps, "Syscall %d [%s]", hlev_blocked_private->syscall_id, g_quark_to_string(g_hash_table_lookup(syscall_table, &hlev_blocked_private->syscall_id)));
+ g_array_append_val(path, tmps);
+ }
+
+ if(((struct hlev_state_info_blocked *)pstate->private)->substate == HLEV_BLOCKED__OPEN) {
+ char *str = g_quark_to_string(((struct hlev_state_info_blocked__open *)((struct hlev_state_info_blocked *)pstate->private)->private)->filename);
+ g_array_append_val(path, str);
+ }
+ else if(((struct hlev_state_info_blocked *)pstate->private)->substate == HLEV_BLOCKED__READ) {
+ char *str;
+ asprintf(&str, "%s", g_quark_to_string(((struct hlev_state_info_blocked__read *)((struct hlev_state_info_blocked *)pstate->private)->private)->filename));
+ g_array_append_val(path, str);
+ /* FIXME: this must be freed at some point */
+ //free(str);
+ }
+ else if(((struct hlev_state_info_blocked *)pstate->private)->substate == HLEV_BLOCKED__POLL) {
+ char *str;
+ asprintf(&str, "%s", g_quark_to_string(((struct hlev_state_info_blocked__poll *)((struct hlev_state_info_blocked *)pstate->private)->private)->filename));
+ g_array_append_val(path, str);
+ /* FIXME: this must be freed at some point */
+ //free(str);
+ }
+ break;
+ }
+ };
+}
+
+void print_stack_garray_horizontal(GArray *stack)
+{
+ /* FIXME: this function doesn't work if we delete the states as we process them because we
+ * try to read those states here to print the low level stack.
+ */
+ int i;
+
+ for(i=0; i<stack->len; i++) {
+ struct process_state *pstate = g_array_index(stack, struct process_state *, i);
+ printf("%s", llev_state_infos[pstate->bstate].name);
+
+ if(pstate->bstate == LLEV_SYSCALL) {
+ struct llev_state_info_syscall *llev_syscall_private = pstate->private;
+ printf(" %d [%s]", llev_syscall_private->syscall_id, g_quark_to_string(g_hash_table_lookup(syscall_table, &llev_syscall_private->syscall_id)));
+ }
+
+ printf(", ");
+
+ }
+}
+
+static int dicho_search_state_ending_after(struct process *p, LttTime t)
+{
+ int under = 0;
+ int over = p->hlev_history->len-1;
+ struct process_state *pstate;
+ int result;
+
+ if(over < 1)
+ return -1;
+
+ /* If the last element is smaller or equal than the time we are searching for,
+ * no match
+ */
+ pstate = g_array_index(p->hlev_history, struct process_state *, over);
+ if(ltt_time_compare(pstate->time_end, t) <= 0) {
+ return -1;
+ }
+ /* no need to check for the equal case */
+
+ pstate = g_array_index(p->hlev_history, struct process_state *, under);
+ result = ltt_time_compare(pstate->time_end, t);
+ if(result >= 1) {
+ /* trivial match at the first element if it is greater or equal
+ * than the time we want
+ */
+ return under;
+ }
+
+ while(1) {
+ int dicho;
+
+ dicho = (under+over)/2;
+ pstate = g_array_index(p->hlev_history, struct process_state *, dicho);
+ result = ltt_time_compare(pstate->time_end, t);
+
+ if(result == -1) {
+ under = dicho;
+ }
+ else if(result == 1) {
+ over = dicho;
+ }
+ else {
+ /* exact match */
+ return dicho+1;
+ }
+
+ if(over-under == 1) {
+ /* we have converged */
+ return over;
+ }
+ }
+
+}
+
+/* FIXME: this shouldn't be based on pids in case of reuse
+ * FIXME: should add a list of processes used to avoid loops
+ */
+
+static struct process_state *find_state_ending_after(int pid, LttTime t)
+{
+ struct process *p;
+ int result;
+
+
+ p = g_hash_table_lookup(process_hash_table, &pid);
+ if(!p)
+ return NULL;
+
+ result = dicho_search_state_ending_after(p, t);
+
+ if(result == -1)
+ return NULL;
+ else
+ return g_array_index(p->hlev_history, struct process_state *, result);
+}
+
+static void print_delay_pid(int pid, LttTime t1, LttTime t2, int offset)
+{
+ struct process *p;
+ int i;
+
+ p = g_hash_table_lookup(process_hash_table, &pid);
+ if(!p)
+ return;
+
+ i = dicho_search_state_ending_after(p, t1);
+ for(; i<p->hlev_history->len; i++) {
+ struct process_state *pstate = g_array_index(p->hlev_history, struct process_state *, i);
+ if(ltt_time_compare(pstate->time_end, t2) > 0)
+ break;
+
+ if(pstate->bstate == HLEV_BLOCKED) {
+ struct hlev_state_info_blocked *state_private_blocked;
+ state_private_blocked = pstate->private;
+ struct process_state *state_unblocked;
+
+ printf("%*s", 8*offset, "");
+ printf("Blocked in ");
+ print_stack_garray_horizontal(state_private_blocked->llev_state_entry);
+
+ printf("(times: ");
+ print_time(pstate->time_begin);
+ printf("-");
+ print_time(pstate->time_end);
+
+ printf(", dur: %f)\n", 1e-9*ltt_time_to_double(ltt_time_sub(pstate->time_end, pstate->time_begin)));
+
+ state_unblocked = find_state_ending_after(state_private_blocked->pid_exit, state_private_blocked->time_woken);
+ if(state_unblocked) {
+ if(state_unblocked->bstate == HLEV_INTERRUPTED_IRQ) {
+ struct hlev_state_info_interrupted_irq *priv = state_unblocked->private;
+ /* if in irq or softirq, we don't care what the waking process was doing because they are asynchroneous events */
+ printf("%*s", 8*offset, "");
+ printf("Woken up by an IRQ: ");
+ print_irq(priv->irq);
+ printf("\n");
+ }
+ else if(state_unblocked->bstate == HLEV_INTERRUPTED_SOFTIRQ) {
+ struct hlev_state_info_interrupted_softirq *priv = state_unblocked->private;
+ printf("%*s", 8*offset, "");
+ printf("Woken up by a SoftIRQ: ");
+ print_softirq(priv->softirq);
+ printf("\n");
+ }
+ else {
+ LttTime t1prime=t1;
+ LttTime t2prime=t2;
+
+ if(ltt_time_compare(t1prime, pstate->time_begin) < 0)
+ t1prime = pstate->time_begin;
+ if(ltt_time_compare(t2prime, pstate->time_end) > 0)
+ t2prime = pstate->time_end;
+
+ print_delay_pid(state_private_blocked->pid_exit, t1prime, t2prime, offset+1);
+ printf("%*s", 8*offset, "");
+ printf("Woken up in context of ");
+ print_pid(state_private_blocked->pid_exit);
+ if(state_private_blocked->llev_state_exit) {
+ print_stack_garray_horizontal(state_private_blocked->llev_state_exit);
+ }
+ else {
+ }
+ printf(" in high-level state %s", hlev_state_infos[state_unblocked->bstate].name);
+ printf("\n");
+ }
+ }
+ else {
+ printf("%*s", 8*offset, "");
+ printf("Weird... cannot find in what state the waker (%d) was\n", state_private_blocked->pid_exit);
+ }
+
+
+ //print_delay_pid(state_private_blocked->pid_exit, pstate->time_start, pstate->time_end);
+ //printf("\t\t Woken up in context of %d: ", state_private_blocked->pid_exit);
+ //if(state_private_blocked->llev_state_exit) {
+ // print_stack_garray_horizontal(state_private_blocked->llev_state_exit);
+ // printf("here3 (%d)\n", state_private_blocked->llev_state_exit->len);
+ //}
+ //else
+ // printf("the private_blocked %p had a null exit stack\n", state_private_blocked);
+ //printf("\n");
+ }
+ }
+}
+
+static void print_range_critical_path(int process, LttTime t1, LttTime t2)
+{
+ printf("Critical path for requested range:\n");
+ printf("Final process is %d\n", process);
+ print_delay_pid(process, t1, t2, 2);
+}
+
+static void print_process_critical_path_summary()
+{
+ struct process *pinfo;
+ GList *pinfos;
+ int i,j;
+
+ pinfos = g_hash_table_get_values(process_hash_table);
+ if(pinfos == NULL) {
+ fprintf(stderr, "error: no process found\n");
+ return;
+ }
+
+ printf("Process Critical Path Summary:\n");
+
+ for(;;) {
+ struct summary_tree_node base_node = { children: NULL };
+
+ struct process_state *hlev_state_cur;
+
+ pinfo = (struct process *)pinfos->data;
+ printf("\tProcess %d [%s]\n", pinfo->pid, g_quark_to_string(pinfo->name));
+
+ if(pinfo->hlev_history->len < 1)
+ goto next_iter;
+
+ print_delay_pid(pinfo->pid, g_array_index(pinfo->hlev_history, struct process_state *, 0)->time_begin, g_array_index(pinfo->hlev_history, struct process_state *, pinfo->hlev_history->len - 1)->time_end, 2);
+
+ next_iter:
+
+ if(pinfos->next)
+ pinfos = pinfos->next;
+ else
+ break;
+ }
+}
+
+gint compare_states_length(gconstpointer a, gconstpointer b)
+{
+ struct process_state **s1 = (struct process_state **)a;
+ struct process_state **s2 = (struct process_state **)b;
+ gint val;
+
+ val = ltt_time_compare(ltt_time_sub((*s2)->time_end, (*s2)->time_begin), ltt_time_sub((*s1)->time_end, (*s1)->time_begin));
+ return val;
+}
+
+static void print_simple_summary()
+{
+ struct process *pinfo;
+ GList *pinfos;
+ GList *pinfos_first;
+ int i,j;
+ int id_for_episodes = 0;
+
+ /* we save all the nodes here to print the episodes table quickly */
+ GArray *all_nodes = g_array_new(FALSE, FALSE, sizeof(struct summary_tree_node *));
+
+ pinfos_first = g_hash_table_get_values(process_hash_table);
+ if(pinfos_first == NULL) {
+ fprintf(stderr, "error: no processes found\n");
+ return;
+ }
+ pinfos = pinfos_first;
+
+ printf("Simple summary:\n");
+
+ /* For each process */
+ for(;;) {
+ struct summary_tree_node base_node = { children: NULL, name: "Root" };
+
+ struct process_state *hlev_state_cur;
+
+ pinfo = (struct process *)pinfos->data;
+ printf("\tProcess %d [%s]\n", pinfo->pid, g_quark_to_string(pinfo->name));
+
+ /* For each state in the process history */
+ for(i=0; i<pinfo->hlev_history->len; i++) {
+ struct process_state *pstate = g_array_index(pinfo->hlev_history, struct process_state *, i);
+ struct summary_tree_node *node_cur = &base_node;
+ GArray *tree_path_garray;
+
+ /* Modify the path based on private data */
+ tree_path_garray = g_array_new(FALSE, FALSE, sizeof(char *));
+ {
+ int count=0;
+ char **tree_path_cur2 = hlev_state_infos[pstate->bstate].tree_path;
+ while(*tree_path_cur2) {
+ count++;
+ tree_path_cur2++;
+ }
+ g_array_append_vals(tree_path_garray, hlev_state_infos[pstate->bstate].tree_path, count);
+ }
+ modify_path_with_private(tree_path_garray, pstate);
+
+ /* Walk the path, adding the nodes to the summary */
+ for(j=0; j<tree_path_garray->len; j++) {
+ struct summary_tree_node *newnode;
+ GQuark componentquark;
+
+ /* Have a path component we must follow */
+ if(!node_cur->children) {
+ /* must create the hash table for the children */
+ node_cur->children = g_hash_table_new(g_int_hash, g_int_equal);
+ }
+
+ /* try to get the node for the next component */
+ componentquark = g_quark_from_string(g_array_index(tree_path_garray, char *, j));
+ newnode = g_hash_table_lookup(node_cur->children, &componentquark);
+ if(newnode == NULL) {
+ newnode = g_malloc(sizeof(struct summary_tree_node));
+ newnode->children = NULL;
+ newnode->name = g_array_index(tree_path_garray, char *, j);
+ newnode->duration = ltt_time_zero;
+ newnode->id_for_episodes = id_for_episodes++;
+ newnode->episodes = g_array_new(FALSE, FALSE, sizeof(struct process_state *));
+ g_hash_table_insert(node_cur->children, &componentquark, newnode);
+
+ g_array_append_val(all_nodes, newnode);
+ }
+ node_cur = newnode;
+
+ node_cur->duration = ltt_time_add(node_cur->duration, ltt_time_sub(pstate->time_end, pstate->time_begin));
+ g_array_append_val(node_cur->episodes, pstate);
+ }
+ }
+
+ /* print the summary */
+ print_summary_item(&base_node, -1);
+
+ printf("\n");
+
+ if(pinfos->next)
+ pinfos = pinfos->next;
+ else
+ break;
+ }
+
+ printf("\n");
+
+ printf("Episode list\n");
+ pinfos = pinfos_first;
+
+ /* For all the nodes of the Simple summary tree */
+ for(i=0; i<all_nodes->len; i++) {
+ struct summary_tree_node *node = (struct summary_tree_node *)g_array_index(all_nodes, struct summary_tree_node *, i);
+
+ /* Sort the episodes from longest to shortest */
+ g_array_sort(node->episodes, compare_states_length);
+
+ printf("\tNode id: <%d>\n", node->id_for_episodes);
+ /* For each episode of the node */
+ for(j=0; j<node->episodes->len; j++) {
+ struct process_state *st = g_array_index(node->episodes, struct process_state *, j);
+
+ printf("\t\t");
+ print_time(st->time_begin);
+ printf("-");
+ print_time(st->time_end);
+ printf(" (%f)\n", 1e-9*ltt_time_to_double(ltt_time_sub(st->time_end,st->time_begin)));
+ }
+ }
+}
+
+static void print_simple_summary_pid_range(int pid, LttTime t1, LttTime t2)
+{
+ struct process *pinfo;
+ int i,j;
+ int id_for_episodes = 0;
+
+ /* we save all the nodes here to print the episodes table quickly */
+ GArray *all_nodes = g_array_new(FALSE, FALSE, sizeof(struct summary_tree_node *));
+
+ pinfo = g_hash_table_lookup(process_hash_table, &pid);
+
+ {
+ struct summary_tree_node base_node = { children: NULL, name: "Root" };
+
+ struct process_state *hlev_state_cur;
+
+ printf("\tProcess %d [%s]\n", pinfo->pid, g_quark_to_string(pinfo->name));
+
+ /* For each state in the process history */
+ for(i=0; i<pinfo->hlev_history->len; i++) {
+ struct process_state *pstate = g_array_index(pinfo->hlev_history, struct process_state *, i);
+ struct summary_tree_node *node_cur = &base_node;
+ GArray *tree_path_garray;
+
+ if(ltt_time_compare(pstate->time_end, t1) < 0)
+ continue;
+
+ if(ltt_time_compare(pstate->time_end, t2) > 0)
+ break;
+
+ /* Modify the path based on private data */
+ tree_path_garray = g_array_new(FALSE, FALSE, sizeof(char *));
+ {
+ int count=0;
+ char **tree_path_cur2 = hlev_state_infos[pstate->bstate].tree_path;
+ while(*tree_path_cur2) {
+ count++;
+ tree_path_cur2++;
+ }
+ g_array_append_vals(tree_path_garray, hlev_state_infos[pstate->bstate].tree_path, count);
+ }
+ modify_path_with_private(tree_path_garray, pstate);
+
+ /* Walk the path, adding the nodes to the summary */
+ for(j=0; j<tree_path_garray->len; j++) {
+ struct summary_tree_node *newnode;
+ GQuark componentquark;
+
+ /* Have a path component we must follow */
+ if(!node_cur->children) {
+ /* must create the hash table for the children */
+ node_cur->children = g_hash_table_new(g_int_hash, g_int_equal);
+ }
+
+ /* try to get the node for the next component */
+ componentquark = g_quark_from_string(g_array_index(tree_path_garray, char *, j));
+ newnode = g_hash_table_lookup(node_cur->children, &componentquark);
+ if(newnode == NULL) {
+ newnode = g_malloc(sizeof(struct summary_tree_node));
+ newnode->children = NULL;
+ newnode->name = g_array_index(tree_path_garray, char *, j);
+ newnode->duration = ltt_time_zero;
+ newnode->id_for_episodes = id_for_episodes++;
+ newnode->episodes = g_array_new(FALSE, FALSE, sizeof(struct process_state *));
+ g_hash_table_insert(node_cur->children, &componentquark, newnode);
+
+ g_array_append_val(all_nodes, newnode);
+ }
+ node_cur = newnode;
+
+ node_cur->duration = ltt_time_add(node_cur->duration, ltt_time_sub(pstate->time_end, pstate->time_begin));
+ g_array_append_val(node_cur->episodes, pstate);
+ }
+ }
+
+ /* print the summary */
+ print_summary_item(&base_node, -1);
+
+ printf("\n");
+ }
+
+ printf("\n");
+
+ printf("Episode list\n");
+
+ /* For all the nodes of the Simple summary tree */
+ for(i=0; i<all_nodes->len; i++) {
+ struct summary_tree_node *node = (struct summary_tree_node *)g_array_index(all_nodes, struct summary_tree_node *, i);
+
+ /* Sort the episodes from longest to shortest */
+ g_array_sort(node->episodes, compare_states_length);
+
+ printf("\tNode id: <%d>\n", node->id_for_episodes);
+ /* For each episode of the node */
+ for(j=0; j<node->episodes->len; j++) {
+ struct process_state *st = g_array_index(node->episodes, struct process_state *, j);
+
+ printf("\t\t");
+ print_time(st->time_begin);
+ printf("-");
+ print_time(st->time_end);
+ printf(" (%f)\n", 1e-9*ltt_time_to_double(ltt_time_sub(st->time_end,st->time_begin)));
+ }
+ }
+}
+
+static void flush_process_sstacks(void)
+{
+ GList *pinfos;
+
+ pinfos = g_hash_table_get_values(process_hash_table);
+ while(pinfos) {
+ struct process *pinfo = (struct process *)pinfos->data;
+
+ sstack_force_flush(pinfo->stack);
+
+ pinfos = pinfos->next;
+ }
+
+ g_list_free(pinfos);
+}
+
+struct family_item {
+ int pid;
+ LttTime creation;
+};
+
+void print_range_reports(int pid, LttTime t1, LttTime t2)
+{
+ GArray *family = g_array_new(FALSE, FALSE, sizeof(struct family_item));
+ int i;
+
+ /* reconstruct the parental sequence */
+ for(;;) {
+ struct process *pinfo;
+ struct family_item fi;
+ LttTime cur_beg;
+
+ pinfo = g_hash_table_lookup(process_hash_table, &pid);
+ if(pinfo == NULL)
+ abort();
+
+ fi.pid = pid;
+ cur_beg = g_array_index(pinfo->hlev_history, struct process_state *, 0)->time_begin;
+ fi.creation = cur_beg;
+ g_array_append_val(family, fi);
+
+ if(ltt_time_compare(cur_beg, t1) == -1) {
+ /* current pid starts before the interesting time */
+ break;
+ }
+ if(pinfo->parent == -1) {
+ printf("unable to go back, we don't know the parent of %d\n", fi.pid);
+ abort();
+ }
+ /* else, we go on */
+ pid = pinfo->parent;
+
+ }
+
+ printf("Simple summary for range:\n");
+ for(i=family->len-1; i>=0; i--) {
+ LttTime iter_t1, iter_t2;
+ int iter_pid = g_array_index(family, struct family_item, i).pid;
+
+ if(i == family->len-1)
+ iter_t1 = t1;
+ else
+ iter_t1 = g_array_index(family, struct family_item, i).creation;
+
+ if(i == 0)
+ iter_t2 = t2;
+ else
+ iter_t2 = g_array_index(family, struct family_item, i-1).creation;
+
+ printf("This section of summary concerns pid %d between ");
+ print_time(iter_t1);
+ printf(" and ");
+ print_time(iter_t2);
+ printf(".\n");
+ print_simple_summary_pid_range(iter_pid, iter_t1, iter_t2);
+ }
+ print_range_critical_path(depanalysis_range_pid, t1, t2);
+}
+
+static gboolean write_traceset_footer(void *hook_data, void *call_data)
+{
+ LttvTracesetContext *tc = (LttvTracesetContext *)call_data;
+
+ g_info("TextDump traceset footer");
+
+ fprintf(a_file,"End trace set\n\n");
+
+// if(LTTV_IS_TRACESET_STATS(tc)) {
+// lttv_stats_sum_traceset((LttvTracesetStats *)tc, ltt_time_infinite);
+// print_stats(a_file, (LttvTracesetStats *)tc);
+// }
+
+ /* After processing all the events, we need to flush the sstacks
+ * because some unfinished states may remain in them. We want them
+ * event though there are incomplete.
+ */
+ flush_process_sstacks();
+
+ /* print the reports */
+ print_simple_summary();
+ print_process_critical_path_summary();
+ printf("depanalysis_use_time = %d\n", depanalysis_use_time);
+ if(depanalysis_use_time == 3) {
+ if(depanalysis_range_pid == -1 && depanalysis_range_pid_searching >= 0)
+ depanalysis_range_pid = depanalysis_range_pid_searching;
+
+ if(depanalysis_range_pid >= 0) {
+ print_range_reports(depanalysis_range_pid, depanalysis_time1, depanalysis_time2);
+ }
+ else
+ printf("range critical path: could not find the end of the range\n");
+ }
+
+ return FALSE;
+}
+
+#if 0
+static gboolean write_trace_header(void *hook_data, void *call_data)
+{
+ LttvTraceContext *tc = (LttvTraceContext *)call_data;
+#if 0 //FIXME
+ LttSystemDescription *system = ltt_trace_system_description(tc->t);
+
+ fprintf(a_file," Trace from %s in %s\n%s\n\n",
+ ltt_trace_system_description_node_name(system),
+ ltt_trace_system_description_domain_name(system),
+ ltt_trace_system_description_description(system));
+#endif //0
+ return FALSE;
+}
+#endif
+
+
+static int write_event_content(void *hook_data, void *call_data)
+{
+ gboolean result;
+
+// LttvIAttribute *attributes = LTTV_IATTRIBUTE(lttv_global_attributes());
+
+ LttvTracefileContext *tfc = (LttvTracefileContext *)call_data;
+
+ LttvTracefileState *tfs = (LttvTracefileState *)call_data;
+
+ LttEvent *e;
+
+ guint cpu = tfs->cpu;
+ LttvTraceState *ts = (LttvTraceState*)tfc->t_context;
+ LttvProcessState *process = ts->running_process[cpu];
+
+ e = ltt_tracefile_get_event(tfc->tf);
+
+ lttv_event_to_string(e, a_string, TRUE, 1, tfs);
+
+// if(a_state) {
+ g_string_append_printf(a_string, " %s ",
+ g_quark_to_string(process->state->s));
+// }
+
+ g_string_append_printf(a_string,"\n");
+
+ fputs(a_string->str, a_file);
+ return FALSE;
+}
+
+static int field_get_value_int(struct LttEvent *e, struct marker_info *info, GQuark f)
+{
+ struct marker_field *marker_field;
+ int found=0;
+
+ for_each_marker_field(marker_field, info) {
+ if (marker_field->name == f) {
+ found = 1;
+ break;
+ }
+ }
+ g_assert(found);
+ return ltt_event_get_long_unsigned(e, marker_field);
+}
+
+static char *field_get_value_string(struct LttEvent *e, struct marker_info *info, GQuark f)
+{
+ struct marker_field *marker_field;
+ int found=0;
+
+ for_each_marker_field(marker_field, info) {
+ if (marker_field->name == f) {
+ found = 1;
+ break;
+ }
+ }
+ g_assert(found);
+ return ltt_event_get_string(e, marker_field);
+}
+
+void process_delayed_stack_action(struct process *pinfo, struct sstack_item *item)
+{
+ //printf("processing delayed stack action on pid %d at ", pinfo->pid);
+ //if(((struct process_with_state *) item->data_val)->state.time_begin.tv_nsec == 987799696)
+ // printf("HERE!!!\n");
+ //print_time(((struct process_with_state *) item->data_val)->state.time_begin);
+ //printf("\n");
+ //printf("stack before:\n");
+ //print_stack(pinfo->stack);
+
+ if(item->data_type == SSTACK_TYPE_PUSH) {
+ struct process_with_state *pwstate = item->data_val;
+ //printf("pushing\n");
+ old_process_push_llev_state(pinfo, &pwstate->state);
+ update_hlev_state(pinfo, pwstate->state.time_begin);
+ }
+ else if(item->data_type == SSTACK_TYPE_POP) {
+ struct process_with_state *pwstate = item->data_val;
+ //printf("popping\n");
+ old_process_pop_llev_state(pinfo, &pwstate->state);
+ update_hlev_state(pinfo, pwstate->state.time_end);
+ }
+ else if(item->data_type == SSTACK_TYPE_EVENT) {
+ struct sstack_event *se = item->data_val;
+ if(se->event_type == HLEV_EVENT_TRY_WAKEUP) {
+ /* FIXME: should change hlev event from BLOCKED to INTERRUPTED CPU when receiving TRY_WAKEUP */
+ struct try_wakeup_event *twe = se->private;
+
+ /* FIXME: maybe do some more rigorous checking here */
+ if(pinfo->hlev_state->bstate == HLEV_BLOCKED) {
+ struct hlev_state_info_blocked *hlev_blocked_private = pinfo->hlev_state->private;
+
+ hlev_blocked_private->pid_exit = twe->pid;
+ hlev_blocked_private->time_woken = twe->time;
+ hlev_blocked_private->llev_state_exit = oldstyle_stack_to_garray(twe->waker->llev_state_stack, twe->waker->stack_current);
+ //printf("set a non null exit stack on %p, and stack size is %d\n", hlev_blocked_private, hlev_blocked_private->llev_state_exit->len);
+
+ /*
+ if(p->stack_current >= 0 && p->llev_state_stack[p->stack_current]->bstate == LLEV_PREEMPTED) {
+ old_process_pop_llev_state(pinfo, p->llev_state_stack[p->stack_current]);
+ update_hlev_state(pinfo
+ old_process_push_llev_state
+ }*/
+
+ }
+ }
+ }
+
+ //printf("stack after:\n");
+ //print_stack(pinfo->stack);
+}
+
+static struct process *get_or_init_process_info(struct LttEvent *e, GQuark name, int pid, int *new)
+{
+ gconstpointer val;
+
+ val = g_hash_table_lookup(process_hash_table, &pid);
+ if(val == NULL) {
+ struct process *pinfo;
+ int i;
+
+ /* Initialize new pinfo for newly discovered process */
+ pinfo = g_malloc(sizeof(struct process));
+ pinfo->pid = pid;
+ pinfo->parent = -1; /* unknown parent */
+ pinfo->hlev_history = g_array_new(FALSE, FALSE, sizeof(struct process_state *));
+ pinfo->stack = sstack_new();
+ pinfo->stack_current=-1;
+ pinfo->stack->process_func = process_delayed_stack_action;
+ pinfo->stack->process_func_arg = pinfo;
+ for(i=0; i<PROCESS_STATE_STACK_SIZE; i++) {
+ pinfo->llev_state_stack[i] = g_malloc(sizeof(struct process_state));
+ }
+
+ pinfo->hlev_state = g_malloc(sizeof(struct process_state));
+ pinfo->hlev_state->bstate = HLEV_UNKNOWN;
+ pinfo->hlev_state->time_begin = e->event_time;
+ pinfo->hlev_state->private = NULL;
+
+ /* set the name */
+ pinfo->name = name;
+
+ g_hash_table_insert(process_hash_table, &pinfo->pid, pinfo);
+ if(new)
+ *new = 1;
+ return pinfo;
+ }
+ else {
+ if(new)
+ *new = 0;
+ return val;
+
+ }
+}
+
+static int differentiate_swappers(int pid, LttEvent *e)
+{
+ if(pid == 0)
+ return pid+e->tracefile->cpu_num+2000000;
+ else
+ return pid;
+}
+
+static int process_event(void *hook_data, void *call_data)
+{
+ LttvTracefileContext *tfc = (LttvTracefileContext *)call_data;
+ LttvTracefileState *tfs = (LttvTracefileState *)call_data;
+ LttEvent *e;
+ struct marker_info *info;
+
+ /* Extract data from event structures and state */
+ guint cpu = tfs->cpu;
+ LttvTraceState *ts = (LttvTraceState*)tfc->t_context;
+ LttvProcessState *process = ts->running_process[cpu];
+ LttTrace *trace = ts->parent.t;
+ struct process *pinfo;
+
+ e = ltt_tracefile_get_event(tfs->parent.tf);
+
+ info = marker_get_info_from_id(tfc->tf->mdata, e->event_id);
+
+ //if(depanalysis_use_time && (ltt_time_compare(e->timestamp, arg_t1) == -1 || ltt_time_compare(e->timestamp, arg_t2) == 1)) {
+ // return;
+ //}
+ /* Set the pid for the dependency analysis at each event, until we are passed the range. */
+ if(depanalysis_use_time == 3) {
+ if(ltt_time_compare(e->event_time, depanalysis_time2) <= 0) {
+ depanalysis_range_pid = process->pid;
+ }
+ else {
+ /* Should stop processing and print results */
+ }
+ }
+
+ /* Code to limit the event count */
+ if(depanalysis_event_limit > 0) {
+ depanalysis_event_limit--;
+ }
+ else if(depanalysis_event_limit == 0) {
+ write_traceset_footer(hook_data, call_data);
+ printf("exit due to event limit reached\n");
+ exit(0);
+ }
+
+ /* write event like textDump for now, for debugging purposes */
+ //write_event_content(hook_data, call_data);
+
+ if(tfc->tf->name == LTT_CHANNEL_SYSCALL_STATE && info->name == LTT_EVENT_SYS_CALL_TABLE) {
+ GQuark q;
+ int *pint = g_malloc(sizeof(int));
+
+ *pint = field_get_value_int(e, info, LTT_FIELD_ID);
+ q = g_quark_from_string(field_get_value_string(e, info, LTT_FIELD_SYMBOL));
+ g_hash_table_insert(syscall_table, pint, q);
+ }
+ else if(tfc->tf->name == LTT_CHANNEL_IRQ_STATE && info->name == LTT_EVENT_LIST_INTERRUPT) {
+ GQuark q;
+ int *pint = g_malloc(sizeof(int));
+
+ *pint = field_get_value_int(e, info, LTT_FIELD_IRQ_ID);
+ q = g_quark_from_string(field_get_value_string(e, info, LTT_FIELD_ACTION));
+ g_hash_table_insert(irq_table, pint, q);
+ }
+ else if(tfc->tf->name == LTT_CHANNEL_SOFTIRQ_STATE && info->name == LTT_EVENT_SOFTIRQ_VEC) {
+ GQuark q;
+ int *pint = g_malloc(sizeof(int));
+
+ *pint = field_get_value_int(e, info, LTT_FIELD_ID);
+ q = g_quark_from_string(field_get_value_string(e, info, LTT_FIELD_SYMBOL));
+ g_hash_table_insert(softirq_table, pint, q);
+ }
+
+
+ /* Only look at events after the statedump is finished.
+ * Before that, the pids in the LttvProcessState are not reliable
+ */
+ if(statedump_finished == 0) {
+ if(tfc->tf->name == LTT_CHANNEL_GLOBAL_STATE && info->name == LTT_EVENT_STATEDUMP_END)
+ statedump_finished = 1;
+ else
+ return FALSE;
+
+ }
+
+ pinfo = get_or_init_process_info(e, process->name, differentiate_swappers(process->pid, e), NULL);
+
+ /* the state machine
+ * Process the event in the context of each process
+ */
+
+ if(tfc->tf->name == LTT_CHANNEL_KERNEL && info->name == LTT_EVENT_IRQ_ENTRY) {
+ struct process *event_process_info = pinfo;
+ struct sstack_item *item;
+
+ item = prepare_push_item(event_process_info, LLEV_IRQ, e->event_time);
+ ((struct llev_state_info_irq *) item_private(item))->irq = field_get_value_int(e, info, LTT_FIELD_IRQ_ID);
+ commit_item(event_process_info, item);
+ }
+ else if(tfc->tf->name == LTT_CHANNEL_KERNEL && info->name == LTT_EVENT_IRQ_EXIT) {
+ struct process *event_process_info = pinfo;
+
+ prepare_pop_item_commit(event_process_info, LLEV_IRQ, e->event_time);
+ }
+ else if(tfc->tf->name == LTT_CHANNEL_KERNEL && info->name == LTT_EVENT_SCHED_SCHEDULE) {
+ int next_pid = field_get_value_int(e, info, LTT_FIELD_NEXT_PID);
+ int prev_pid = field_get_value_int(e, info, LTT_FIELD_PREV_PID);
+ if(next_pid != 0) {
+ struct process *event_process_info = get_or_init_process_info(e, process->name, differentiate_swappers(next_pid, e), NULL);
+ prepare_pop_item_commit(event_process_info, LLEV_PREEMPTED, e->event_time);
+ }
+ if(prev_pid != 0) {
+ struct sstack_item *item;
+ struct process *event_process_info = get_or_init_process_info(e, process->name, differentiate_swappers(prev_pid, e), NULL);
+
+ item = prepare_push_item(event_process_info, LLEV_PREEMPTED, e->event_time);
+ ((struct llev_state_info_preempted *) item_private(item))->prev_state = field_get_value_int(e, info, LTT_FIELD_PREV_STATE);
+ commit_item(event_process_info, item);
+ }
+ }
+ else if(tfc->tf->name == LTT_CHANNEL_KERNEL && info->name == LTT_EVENT_TRAP_ENTRY) {
+ struct process *event_process_info = pinfo;
+ struct sstack_item *item;
+
+ item = prepare_push_item(event_process_info, LLEV_TRAP, e->event_time);
+ commit_item(event_process_info, item);
+ }
+ else if(tfc->tf->name == LTT_CHANNEL_KERNEL && info->name == LTT_EVENT_TRAP_EXIT) {
+ struct process *event_process_info = pinfo;
+
+ prepare_pop_item_commit(event_process_info, LLEV_TRAP, e->event_time);
+ }
+ else if(tfc->tf->name == LTT_CHANNEL_KERNEL && info->name == LTT_EVENT_SYSCALL_ENTRY) {
+ struct process *event_process_info = pinfo;
+ struct sstack_item *item;
+
+ item = prepare_push_item(event_process_info, LLEV_SYSCALL, e->event_time);
+ ((struct llev_state_info_syscall *) item_private(item))->syscall_id = field_get_value_int(e, info, LTT_FIELD_SYSCALL_ID);
+ ((struct llev_state_info_syscall *) item_private(item))->substate = LLEV_SYSCALL__UNDEFINED;
+ commit_item(event_process_info, item);
+ }
+ else if(tfc->tf->name == LTT_CHANNEL_KERNEL && info->name == LTT_EVENT_SYSCALL_EXIT) {
+ struct process *event_process_info = pinfo;
+
+ prepare_pop_item_commit(event_process_info, LLEV_SYSCALL, e->event_time);
+ }
+ else if(tfc->tf->name == LTT_CHANNEL_KERNEL && info->name == LTT_EVENT_SOFT_IRQ_ENTRY) {
+ struct process *event_process_info = pinfo;
+ struct sstack_item *item;
+
+ item = prepare_push_item(event_process_info, LLEV_SOFTIRQ, e->event_time);
+ ((struct llev_state_info_softirq *) item_private(item))->softirq = field_get_value_int(e, info, LTT_FIELD_SOFT_IRQ_ID);
+ commit_item(event_process_info, item);
+ }
+ else if(tfc->tf->name == LTT_CHANNEL_KERNEL && info->name == LTT_EVENT_SOFT_IRQ_EXIT) {
+ struct process *event_process_info = pinfo;
+
+ prepare_pop_item_commit(event_process_info, LLEV_SOFTIRQ, e->event_time);
+ }
+ else if(tfc->tf->name == LTT_CHANNEL_KERNEL && info->name == LTT_EVENT_PROCESS_FORK) {
+ int pid = differentiate_swappers(field_get_value_int(e, info, LTT_FIELD_CHILD_PID), e);
+ struct process *event_process_info = get_or_init_process_info(e, process->name, differentiate_swappers(field_get_value_int(e, info, LTT_FIELD_CHILD_PID), e), NULL);
+ struct sstack_item *item;
+
+ event_process_info->parent = process->pid;
+ //printf("At ");
+ //print_time(e->event_time);
+ //printf(", fork in process %d (%s), creating child %d\n", differentiate_swappers(process->pid, e), g_quark_to_string(process->name), pid);
+
+ item = prepare_push_item(event_process_info, LLEV_RUNNING, e->event_time);
+ commit_item(event_process_info, item);
+ item = prepare_push_item(event_process_info, LLEV_SYSCALL, e->event_time);
+ /* FIXME: this sets fork() as syscall, it's pretty inelegant */
+ ((struct llev_state_info_syscall *) item_private(item))->syscall_id = 57;
+ ((struct llev_state_info_syscall *) item_private(item))->substate = LLEV_SYSCALL__UNDEFINED;
+ commit_item(event_process_info, item);
+
+ item = prepare_push_item(event_process_info, LLEV_PREEMPTED, e->event_time);
+ /* Consider fork as BLOCKED */
+ ((struct llev_state_info_preempted *) item_private(item))->prev_state = 1;
+ commit_item(event_process_info, item);
+
+ //printf("process %d now has a stack of height %d\n", differentiate_swappers(process->pid, e), get_or_init_process_info(e, process->name, differentiate_swappers(process->pid, cpu), NULL)->stack_current-1);
+
+ }
+ else if(tfc->tf->name == LTT_CHANNEL_FS && info->name == LTT_EVENT_EXEC) {
+ struct process *event_process_info = pinfo;
+
+ guint cpu = tfs->cpu;
+ LttvProcessState *process_state = ts->running_process[cpu];
+ event_process_info->name = process_state->name;
+ }
+ else if(tfc->tf->name == LTT_CHANNEL_FS && info->name == LTT_EVENT_OPEN) {
+ struct process_state *pstate = process_find_state(pinfo, LLEV_SYSCALL);
+ struct llev_state_info_syscall *llev_syscall_private;
+ struct llev_state_info_syscall__open *llev_syscall_open_private;
+
+ /* TODO: this is too easy */
+ if(pstate == NULL)
+ goto next_iter;
+
+ llev_syscall_private = (struct llev_state_info_syscall *)pstate->private;
+
+ //printf("depanalysis: found an open with state %d in pid %d\n", pstate->bstate, process->pid);
+ if(pstate->bstate == LLEV_UNKNOWN)
+ goto next_iter;
+
+ g_assert(pstate->bstate == LLEV_SYSCALL);
+ g_assert(llev_syscall_private->substate == LLEV_SYSCALL__UNDEFINED);
+
+ llev_syscall_private->substate = LLEV_SYSCALL__OPEN;
+ //printf("setting substate LLEV_SYSCALL__OPEN on syscall_private %p\n", llev_syscall_private);
+ llev_syscall_private->private = g_malloc(sizeof(struct llev_state_info_syscall__open));
+ llev_syscall_open_private = llev_syscall_private->private;
+
+ llev_syscall_open_private->filename = g_quark_from_string(field_get_value_string(e, info, LTT_FIELD_FILENAME));
+
+ }
+ else if(tfc->tf->name == LTT_CHANNEL_FS && info->name == LTT_EVENT_READ) {
+ struct process_state *pstate = process_find_state(pinfo, LLEV_SYSCALL);
+ struct llev_state_info_syscall *llev_syscall_private;
+ struct llev_state_info_syscall__read *llev_syscall_read_private;
+ GQuark pfileq;
+ int fd;
+
+ /* TODO: this is too easy */
+ if(pstate == NULL)
+ goto next_iter;
+
+ llev_syscall_private = (struct llev_state_info_syscall *)pstate->private;
+
+ //printf("depanalysis: found an read with state %d in pid %d\n", pstate->bstate, process->pid);
+ if(pstate->bstate == LLEV_UNKNOWN)
+ goto next_iter;
+
+ g_assert(pstate->bstate == LLEV_SYSCALL);
+ g_assert(llev_syscall_private->substate == LLEV_SYSCALL__UNDEFINED);
+
+ llev_syscall_private->substate = LLEV_SYSCALL__READ;
+ //printf("setting substate LLEV_SYSCALL__READ on syscall_private %p\n", llev_syscall_private);
+ llev_syscall_private->private = g_malloc(sizeof(struct llev_state_info_syscall__read));
+ llev_syscall_read_private = llev_syscall_private->private;
+
+ fd = field_get_value_int(e, info, LTT_FIELD_FD);
+ pfileq = g_hash_table_lookup(process->fds, fd);
+ if(pfileq) {
+ llev_syscall_read_private->filename = pfileq;
+ }
+ else {
+ char *tmp;
+ asprintf(&tmp, "Unknown filename, fd %d", fd);
+ llev_syscall_read_private->filename = g_quark_from_string(tmp);
+ free(tmp);
+ }
+ }
+ else if(tfc->tf->name == LTT_CHANNEL_FS && info->name == LTT_EVENT_POLL_EVENT) {
+ struct process_state *pstate = process_find_state(pinfo, LLEV_SYSCALL);
+ struct llev_state_info_syscall *llev_syscall_private;
+ struct llev_state_info_syscall__poll *llev_syscall_poll_private;
+ GQuark pfileq;
+ int fd;
+
+ /* TODO: this is too easy */
+ if(pstate == NULL)
+ goto next_iter;
+
+ llev_syscall_private = (struct llev_state_info_syscall *)pstate->private;
+
+ //printf("depanalysis: found an poll with state %d in pid %d\n", pstate->bstate, process->pid);
+ if(pstate->bstate == LLEV_UNKNOWN)
+ goto next_iter;
+
+ /* poll doesn't have a single event that gives the syscall args. instead, there can be an arbitrary
+ * number of fs_pollfd or fd_poll_event events
+ * We use the fd_poll_event event, which occurs for each fd that had activity causing a return of the poll()
+ * For now we only use the first.
+ * We should do something about this. FIXME
+ */
+ if(llev_syscall_private->substate == LLEV_SYSCALL__POLL)
+ goto next_iter;
+
+ g_assert(pstate->bstate == LLEV_SYSCALL);
+ g_assert(llev_syscall_private->substate == LLEV_SYSCALL__UNDEFINED);
+
+ llev_syscall_private->substate = LLEV_SYSCALL__POLL;
+ //printf("setting substate LLEV_SYSCALL__POLL on syscall_private %p\n", llev_syscall_private);
+ llev_syscall_private->private = g_malloc(sizeof(struct llev_state_info_syscall__poll));
+ llev_syscall_poll_private = llev_syscall_private->private;
+
+ fd = field_get_value_int(e, info, LTT_FIELD_FD);
+ pfileq = g_hash_table_lookup(process->fds, fd);
+ if(pfileq) {
+ llev_syscall_poll_private->filename = pfileq;
+ }
+ else {
+ char *tmp;
+ asprintf(&tmp, "Unknown filename, fd %d", fd);
+ llev_syscall_poll_private->filename = g_quark_from_string(tmp);
+ free(tmp);
+ }
+ }
+ else if(tfc->tf->name == LTT_CHANNEL_KERNEL && info->name == LTT_EVENT_SCHED_TRY_WAKEUP) {
+ struct sstack_event *se = g_malloc(sizeof(struct sstack_event));
+ struct try_wakeup_event *twe = g_malloc(sizeof(struct try_wakeup_event));
+ struct sstack_item *item = sstack_item_new_event();
+ int target = field_get_value_int(e, info, LTT_FIELD_PID);
+ struct process *target_pinfo;
+ int result;
+
+ se->event_type = HLEV_EVENT_TRY_WAKEUP;
+ se->private = twe;
+ //printf("pushing try wake up event in context of %d\n", pinfo->pid);
+
+ twe->pid = differentiate_swappers(process->pid, e);
+ twe->time = e->event_time;
+ twe->waker = pinfo;
+
+ /* FIXME: the target could not yet have an entry in the hash table, we would then lose data */
+ target_pinfo = g_hash_table_lookup(process_hash_table, &target);
+ if(!target_pinfo)
+ goto next_iter;
+
+ item->data_val = se;
+ item->delete_data_val = delete_data_val;
+
+ sstack_add_item(target_pinfo->stack, item);
+
+ /* Now pop the blocked schedule out of the target */
+ result = try_pop_blocked_llev_preempted(target_pinfo, e->event_time);
+
+ if(result) {
+ struct sstack_item *item;
+ struct process *event_process_info = target_pinfo;
+
+ item = prepare_push_item(event_process_info, LLEV_PREEMPTED, e->event_time);
+ ((struct llev_state_info_preempted *) item_private(item))->prev_state = -1; /* special value meaning post-block sched out */
+ commit_item(event_process_info, item);
+ }
+
+ }
+
+ next_iter:
+ skip_state_machine:
+ return FALSE;
+}
+
+void print_sstack_private(struct sstack_item *item)
+{
+ struct process_with_state *pwstate = item->data_val;
+
+ if(pwstate && item->data_type == SSTACK_TYPE_PUSH)
+ printf("\tstate: %s", llev_state_infos[pwstate->state.bstate].name);
+
+ printf(" (");
+ print_time(pwstate->state.time_begin);
+ printf("-");
+ print_time(pwstate->state.time_end);
+ printf("\n");
+
+}
+
+static LttTime ltt_time_from_string(const char *str)
+{
+ LttTime retval;
+
+ char *decdot = strchr(str, '.');
+
+ if(decdot) {
+ *decdot = '\0';
+ retval.tv_nsec = atol(decdot+1);
+ }
+ else {
+ retval.tv_nsec = 0;
+ }
+
+ retval.tv_sec = atol(str);
+
+ return retval;
+}
+
+static void arg_t1(void *hook_data)
+{
+ printf("arg_t1\n");
+ depanalysis_use_time |= 1;
+ depanalysis_time1 = ltt_time_from_string(arg_t1_str);
+}
+
+static void arg_t2(void *hook_data)
+{
+ depanalysis_use_time |= 2;
+ depanalysis_time2 = ltt_time_from_string(arg_t2_str);
+}
+
+static void arg_pid(void *hook_data)
+{
+}
+
+static void arg_limit(void *hook_data)
+{
+}
+
+static void init()
+{
+ gboolean result;
+
+ print_sstack_item_data = print_sstack_private;
+
+ LttvAttributeValue value;
+
+ LttvIAttribute *attributes = LTTV_IATTRIBUTE(lttv_global_attributes());
+
+ a_file = stdout;
+
+ lttv_option_add("dep-time-start", 0, "dependency analysis time of analysis start", "time",
+ LTTV_OPT_STRING, &arg_t1_str, arg_t1, NULL);
+ lttv_option_add("dep-time-end", 0, "dependency analysis time of analysis end", "time",
+ LTTV_OPT_STRING, &arg_t2_str, arg_t2, NULL);
+ lttv_option_add("dep-pid", 0, "dependency analysis pid", "pid",
+ LTTV_OPT_INT, &depanalysis_range_pid_searching, arg_pid, NULL);
+ lttv_option_add("limit-events", 0, "dependency limit event count", "count",
+ LTTV_OPT_INT, &depanalysis_event_limit, arg_limit, NULL);
+
+ process_hash_table = g_hash_table_new(g_int_hash, g_int_equal);
+ syscall_table = g_hash_table_new(g_int_hash, g_int_equal);
+ irq_table = g_hash_table_new(g_int_hash, g_int_equal);
+ softirq_table = g_hash_table_new(g_int_hash, g_int_equal);
+
+ a_string = g_string_new("");
+
+ result = lttv_iattribute_find_by_path(attributes, "hooks/event",
+ LTTV_POINTER, &value);
+ g_assert(result);
+ event_hook = *(value.v_pointer);
+ g_assert(event_hook);
+ lttv_hooks_add(event_hook, process_event, NULL, LTTV_PRIO_DEFAULT);
+
+// result = lttv_iattribute_find_by_path(attributes, "hooks/trace/before",
+// LTTV_POINTER, &value);
+// g_assert(result);
+// before_trace = *(value.v_pointer);
+// g_assert(before_trace);
+// lttv_hooks_add(before_trace, write_trace_header, NULL, LTTV_PRIO_DEFAULT);
+//
+ result = lttv_iattribute_find_by_path(attributes, "hooks/traceset/before",
+ LTTV_POINTER, &value);
+ g_assert(result);
+ before_traceset = *(value.v_pointer);
+ g_assert(before_traceset);
+ lttv_hooks_add(before_traceset, write_traceset_header, NULL,
+ LTTV_PRIO_DEFAULT);
+
+ result = lttv_iattribute_find_by_path(attributes, "hooks/traceset/after",
+ LTTV_POINTER, &value);
+ g_assert(result);
+ after_traceset = *(value.v_pointer);
+ g_assert(after_traceset);
+ lttv_hooks_add(after_traceset, write_traceset_footer, NULL,
+ LTTV_PRIO_DEFAULT);
+}
+
+static void destroy()
+{
+ lttv_option_remove("dep-time-start");
+ lttv_option_remove("dep-time-end");
+ lttv_option_remove("dep-pid");
+ lttv_option_remove("limit-events");
+
+ g_hash_table_destroy(process_hash_table);
+ g_hash_table_destroy(syscall_table);
+ g_hash_table_destroy(irq_table);
+ g_hash_table_destroy(softirq_table);
+
+ g_string_free(a_string, TRUE);
+
+ lttv_hooks_remove_data(event_hook, write_event_content, NULL);
+// lttv_hooks_remove_data(before_trace, write_trace_header, NULL);
+ lttv_hooks_remove_data(before_traceset, write_traceset_header, NULL);
+ lttv_hooks_remove_data(after_traceset, write_traceset_footer, NULL);
+}
+
+LTTV_MODULE("depanalysis", "Dependency analysis test", \
+ "Produce a dependency analysis of a trace", \
+ init, destroy, "stats", "batchAnalysis", "option", "print")
+
projects / lttv.git / commitdiff
