+++ /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.
- */
-
-#ifndef STATE_H
-#define STATE_H
-
-#include <glib.h>
-#include <lttv/tracecontext.h>
-#include <stdio.h>
-
-/* The operating system state, kept during the trace analysis,
- contains a subset of the real operating system state,
- sufficient for the analysis, and possibly organized quite differently.
-
- The state information is added to LttvTracesetContext, LttvTraceContext
- and LttvTracefileContext objects, used by process_traceset, through
- subtyping. The context objects already reflect the multiple tracefiles
- (one per cpu) per trace and multiple traces per trace set. The state
- objects defined here simply add fields to the relevant context objects.
-
- There is no traceset specific state yet. It may eventually contains such
- things as clock differences over time.
-
- The trace state currently consists in a process table.
-
- The tracefile level state relates to the associated cpu. It contains the
- position of the current event in the tracefile (since the state depends on
- which events have been processed) and a pointer to the current process,
- in the process table, being run on that cpu.
-
- For each process in the process table, various informations such as exec
- file name, pid, ppid and creation time are stored. Each process state also
- contains an execution mode stack (e.g. irq within system call, called
- from user mode). */
-
-/* Priority of state hooks */
-#define LTTV_PRIO_STATE 25
-
-#define LTTV_STATE_SAVE_INTERVAL 50000
-
-/* Facilities Quarks */
-
-extern GQuark
- LTT_FACILITY_KERNEL,
- LTT_FACILITY_KERNEL_ARCH,
- LTT_FACILITY_FS,
- LTT_FACILITY_LIST,
- LTT_FACILITY_USER_GENERIC,
- LTT_FACILITY_BLOCK,
- LTT_FACILITY_STATEDUMP;
-
-/* Events Quarks */
-
-extern GQuark
- LTT_EVENT_SYSCALL_ENTRY,
- LTT_EVENT_SYSCALL_EXIT,
- LTT_EVENT_TRAP_ENTRY,
- LTT_EVENT_TRAP_EXIT,
- LTT_EVENT_IRQ_ENTRY,
- LTT_EVENT_IRQ_EXIT,
- LTT_EVENT_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;
-
-/* Fields Quarks */
-
-extern 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_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;
-
-typedef struct _LttvTracesetState LttvTracesetState;
-typedef struct _LttvTracesetStateClass LttvTracesetStateClass;
-
-typedef struct _LttvTraceState LttvTraceState;
-typedef struct _LttvTraceStateClass LttvTraceStateClass;
-
-typedef struct _LttvTracefileState LttvTracefileState;
-typedef struct _LttvTracefileStateClass LttvTracefileStateClass;
-
-gint lttv_state_hook_add_event_hooks(void *hook_data, void *call_data);
-void lttv_state_add_event_hooks(LttvTracesetState *self);
-
-gint lttv_state_hook_remove_event_hooks(void *hook_data, void *call_data);
-void lttv_state_remove_event_hooks(LttvTracesetState *self);
-
-void lttv_state_save_add_event_hooks(LttvTracesetState *self);
-// Hook wrapper. call_data is a trace context.
-gint lttv_state_save_hook_add_event_hooks(void *hook_data, void *call_data);
-
-void lttv_state_save_remove_event_hooks(LttvTracesetState *self);
-// Hook wrapper. call_data is a trace context.
-gint lttv_state_save_hook_remove_event_hooks(void *hook_data, void *call_data);
-
-void lttv_state_traceset_seek_time_closest(LttvTracesetState *self, LttTime t);
-
-/* The LttvProcessState structure defines the current state for each process.
- A process can make system calls (in some rare cases nested) and receive
- interrupts/faults. For instance, a process may issue a system call,
- generate a page fault while reading an argument from user space, and
- get caught by an interrupt. To represent these nested states, an
- execution mode stack is maintained. The stack bottom is normal user mode
- and the top of stack is the current execution mode.
-
- The execution mode stack tells about the process status, execution mode and
- submode (interrupt, system call or IRQ number). All these could be
- defined as enumerations but may need extensions (e.g. new process state).
- GQuark are thus used. They are as easy to manipulate as integers but have
- a string associated, just like enumerations.
-
- The execution mode is one of "user mode", "kernel thread", "system call",
- "interrupt request", "fault". */
-
-typedef GQuark LttvExecutionMode;
-
-extern LttvExecutionMode
- LTTV_STATE_USER_MODE,
- LTTV_STATE_SYSCALL,
- LTTV_STATE_TRAP,
- LTTV_STATE_IRQ,
- LTTV_STATE_SOFT_IRQ,
- LTTV_STATE_MODE_UNKNOWN;
-
-
-/* The submode number depends on the execution mode. For user mode or kernel
- thread, which are the normal mode (execution mode stack bottom),
- it is set to "none". For interrupt requests, faults and system calls,
- it is set respectively to the interrupt name (e.g. "timer"), fault name
- (e.g. "page fault"), and system call name (e.g. "select"). */
-
-typedef GQuark LttvExecutionSubmode;
-
-extern LttvExecutionSubmode
- LTTV_STATE_SUBMODE_NONE,
- LTTV_STATE_SUBMODE_UNKNOWN;
-
-/* The process status is one of "running", "wait-cpu" (runnable), or "wait-*"
- where "*" describes the resource waited for (e.g. timer, process,
- disk...). */
-
-typedef GQuark LttvProcessStatus;
-
-extern 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;
-
-extern GQuark
- LTTV_STATE_UNBRANDED;
-
-typedef GQuark LttvProcessType;
-
-extern LttvProcessType
- LTTV_STATE_USER_THREAD,
- LTTV_STATE_KERNEL_THREAD;
-
-typedef GQuark LttvCPUMode;
-extern LttvCPUMode
- LTTV_CPU_UNKNOWN,
- LTTV_CPU_IDLE,
- LTTV_CPU_BUSY,
- LTTV_CPU_IRQ,
- LTTV_CPU_SOFT_IRQ,
- LTTV_CPU_TRAP;
-
-typedef GQuark LttvIRQMode;
-extern LttvIRQMode
- LTTV_IRQ_UNKNOWN,
- LTTV_IRQ_IDLE,
- LTTV_IRQ_BUSY;
-
-typedef GQuark LttvBdevMode;
-extern LttvBdevMode
- LTTV_BDEV_UNKNOWN,
- LTTV_BDEV_IDLE,
- LTTV_BDEV_BUSY_READING,
- LTTV_BDEV_BUSY_WRITING;
-
-typedef struct _LttvExecutionState {
- LttvExecutionMode t;
- LttvExecutionSubmode n;
- LttTime entry;
- LttTime change;
- LttTime cum_cpu_time;
- LttvProcessStatus s;
-} LttvExecutionState;
-
-typedef struct _LttvProcessState {
- guint pid;
- guint tgid;
- guint ppid;
- LttTime creation_time;
- LttTime insertion_time;
- GQuark name;
- GQuark brand;
- GQuark pid_time;
- GArray *execution_stack; /* Array of LttvExecutionState */
- LttvExecutionState *state; /* Top of interrupt stack */
- /* WARNING : each time the execution_stack size is modified, the state
- * must be reget : g_array_set_size can have to move the array.
- * (Mathieu) */
- guint cpu; /* CPU where process is scheduled (being either in
- the active or inactive runqueue)*/
-// guint last_tracefile_index; /* index in the trace for cpu tracefile */
- LttvTracefileState *usertrace; /* Associated usertrace */
- /* opened file descriptors, address map?... */
- GArray *user_stack; /* User space function call stack */
- guint64 current_function;
- LttvProcessType type; /* kernel thread or user space ? */
- guint target_pid; /* target PID of the current event. */
- guint free_events; /* 0 : none, 1 : free or exit dead, 2 : should delete */
-} LttvProcessState;
-
-#define ANY_CPU 0 /* For clarity sake : a call to lttv_state_find_process for
- a PID != 0 will search on any cpu automatically. */
-
-LttvProcessState *
-lttv_state_find_process(LttvTraceState *ts, guint cpu, guint pid);
-
-LttvProcessState *
-lttv_state_find_process_or_create(LttvTraceState *ts, guint cpu, guint pid,
- const LttTime *timestamp);
-
-LttvProcessState *
-lttv_state_create_process(LttvTraceState *tcs, LttvProcessState *parent,
- guint cpu, guint pid, guint tgid, GQuark name, const LttTime *timestamp);
-
-void lttv_state_write(LttvTraceState *self, LttTime t, FILE *fp);
-void lttv_state_write_raw(LttvTraceState *self, LttTime t, FILE *fp);
-
-/* The LttvTracesetState, LttvTraceState and LttvTracefileState types
- inherit from the corresponding Context objects defined in processTrace. */
-
-#define LTTV_TRACESET_STATE_TYPE (lttv_traceset_state_get_type ())
-#define LTTV_TRACESET_STATE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), LTTV_TRACESET_STATE_TYPE, LttvTracesetState))
-#define LTTV_TRACESET_STATE_CLASS(vtable) (G_TYPE_CHECK_CLASS_CAST ((vtable), LTTV_TRACESET_STATE_TYPE, LttvTracesetStateClass))
-#define LTTV_IS_TRACESET_STATE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), LTTV_TRACESET_STATE_TYPE))
-#define LTTV_IS_TRACESET_STATE_CLASS(vtable) (G_TYPE_CHECK_CLASS_TYPE ((vtable), LTTV_TRACESET_STATE_TYPE))
-#define LTTV_TRACESET_STATE_GET_CLASS(inst) (G_TYPE_INSTANCE_GET_CLASS ((inst), LTTV_TRACESET_STATE_TYPE, LttvTracesetStateClass))
-
-struct _LttvTracesetState {
- LttvTracesetContext parent;
-};
-
-struct _LttvTracesetStateClass {
- LttvTracesetContextClass parent;
-};
-
-GType lttv_traceset_state_get_type (void);
-
-
-#define LTTV_TRACE_STATE_TYPE (lttv_trace_state_get_type ())
-#define LTTV_TRACE_STATE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), LTTV_TRACE_STATE_TYPE, LttvTraceState))
-#define LTTV_TRACE_STATE_CLASS(vtable) (G_TYPE_CHECK_CLASS_CAST ((vtable), LTTV_TRACE_STATE_TYPE, LttvTraceStateClass))
-#define LTTV_IS_TRACE_STATE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), LTTV_TRACE_STATE_TYPE))
-#define LTTV_IS_TRACE_STATE_CLASS(vtable) (G_TYPE_CHECK_CLASS_TYPE ((vtable), LTTV_TRACE_STATE_TYPE))
-#define LTTV_TRACE_STATE_GET_CLASS(inst) (G_TYPE_INSTANCE_GET_CLASS ((inst), LTTV_TRACE_STATE_TYPE, LttvTraceStateClass))
-
-typedef struct _LttvCPUState {
- GArray *mode_stack;
- guint last_irq;
- guint last_soft_irq;
- guint last_trap;
-} LttvCPUState;
-
-typedef struct _LttvIRQState {
- GArray *mode_stack;
-} LttvIRQState;
-
-typedef struct _LttvSoftIRQState {
- guint pending; /* number of times it is pending */
- guint running; /* number of times it is currently running (on different processors) */
-} LttvSoftIRQState;
-
-typedef struct _LttvTrapState {
- guint running; /* number of times it is currently running (on different processors) */
-} LttvTrapState;
-
-typedef struct _LttvBdevState {
- GArray *mode_stack;
-} LttvBdevState;
-
-struct _LttvTraceState {
- LttvTraceContext parent;
-
- GHashTable *processes; /* LttvProcessState objects indexed by pid and
- last_cpu */
- GHashTable *usertraces; /* GPtrArray objects indexed by pid, containing
- pointers to LttvTracefileState objects. */
- guint nb_event, save_interval;
- /* Block/char devices, locks, memory pages... */
- GQuark *eventtype_names;
- GQuark *syscall_names;
- guint nb_syscalls;
- GQuark *trap_names;
- guint nb_traps;
- guint nb_irqs;
- guint nb_soft_irqs;
- GQuark *irq_names;
- GQuark *soft_irq_names;
- LttTime *max_time_state_recomputed_in_seek;
-
- /* Array of per cpu running process */
- LttvProcessState **running_process;
- gboolean has_precomputed_states;
- LttvCPUState *cpu_states; /* state of each cpu */
- LttvIRQState *irq_states; /* state of each irq handler */
- LttvSoftIRQState *soft_irq_states; /* state of each softirq */
- LttvTrapState *trap_states; /* state of each trap */
- GHashTable *bdev_states; /* state of the block devices */
-};
-
-struct _LttvTraceStateClass {
- LttvTraceContextClass parent;
-
- void (*state_save) (LttvTraceState *self, LttvAttribute *container);
- void (*state_restore) (LttvTraceState *self, LttvAttribute *container);
- void (*state_saved_free) (LttvTraceState *self, LttvAttribute *container);
-};
-
-GType lttv_trace_state_get_type (void);
-
-void lttv_state_save(LttvTraceState *self, LttvAttribute *container);
-
-void lttv_state_restore(LttvTraceState *self, LttvAttribute *container);
-
-void lttv_state_state_saved_free(LttvTraceState *self,
- LttvAttribute *container);
-
-int lttv_state_pop_state_cleanup(LttvProcessState *process,
- LttvTracefileState *tfs);
-
-#define LTTV_TRACEFILE_STATE_TYPE (lttv_tracefile_state_get_type ())
-#define LTTV_TRACEFILE_STATE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), LTTV_TRACEFILE_STATE_TYPE, LttvTracefileState))
-#define LTTV_TRACEFILE_STATE_CLASS(vtable) (G_TYPE_CHECK_CLASS_CAST ((vtable), LTTV_TRACEFILE_STATE_TYPE, LttvTracefileStateClass))
-#define LTTV_IS_TRACEFILE_STATE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), LTTV_TRACEFILE_STATE_TYPE))
-#define LTTV_IS_TRACEFILE_STATE_CLASS(vtable) (G_TYPE_CHECK_CLASS_TYPE ((vtable), LTTV_TRACEFILE_STATE_TYPE))
-#define LTTV_TRACEFILE_STATE_GET_CLASS(inst) (G_TYPE_INSTANCE_GET_CLASS ((inst), LTTV_TRACEFILE_STATE_TYPE, LttvTracefileStateClass))
-
-struct _LttvTracefileState {
- LttvTracefileContext parent;
-
- GQuark tracefile_name;
- guint cpu; /* Current cpu of the tracefile */ /* perhaps merge in cpu_state */
- LttvCPUState *cpu_state; /* cpu resource state */
-};
-
-struct _LttvTracefileStateClass {
- LttvTracefileContextClass parent;
-};
-
-GType lttv_tracefile_state_get_type (void);
-
-static inline guint lttv_state_get_target_pid(LttvTracefileState *tfs)
-{
- LttvTraceState *ts = (LttvTraceState*)tfs->parent.t_context;
- guint cpu = tfs->cpu;
- LttvProcessState *process = ts->running_process[cpu];
-
- if(tfs->parent.target_pid >= 0) return tfs->parent.target_pid;
- else return process->pid;
-}
-
-
-#define HDR_PROCESS 0
-#define HDR_ES 1
-#define HDR_USER_STACK 2
-#define HDR_USERTRACE 3
-#define HDR_PROCESS_STATE 4
-#define HDR_CPU 5
-#define HDR_TRACEFILE 6
-#define HDR_TRACESET 7
-#define HDR_TRACE 8
-#define HDR_QUARKS 9
-#define HDR_QUARK 10
-
-/* Device number manipulation macros from kernel source */
-#define MINORBITS 20
-#define MINORMASK ((1U << MINORBITS) - 1)
-#define MAJOR(dev) ((unsigned int) ((dev) >> MINORBITS))
-#define MINOR(dev) ((unsigned int) ((dev) & MINORMASK))
-#define MKDEV(ma,mi) (((ma) << MINORBITS) | (mi))
-
-#endif // STATE_H
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