#ifndef STATE_H
#define STATE_H
+#include <glib.h>
#include <lttv/processTrace.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
+ The state information is added to LttvTracesetContext, LttvTraceContext
and LttvTracefileContext objects, used by processTrace, 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. */
+typedef struct _LttvTracesetState LttvTracesetState;
+typedef struct _LttvTracesetStateClass LttvTracesetStateClass;
-/* 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
- interrupt stack is maintained. The stack bottom is normal user mode and
- the top of stack is the current interrupt state.
-
- The interrupt state tells about the process status, interrupt type and
- interrupt number. All these could be defined as enumerations but may
- need extensions (e.g. new process state). GQuark are thus used being
- as easy to manipulate as integers but having a string associated, just
- like enumerations. */
+typedef struct _LttvTraceState LttvTraceState;
+typedef struct _LttvTraceStateClass LttvTraceStateClass;
+typedef struct _LttvTracefileState LttvTracefileState;
+typedef struct _LttvTracefileStateClass LttvTracefileStateClass;
gboolean lttv_state_add_event_hooks(LttvTracesetState *self);
gboolean lttv_state_remove_event_hooks(LttvTracesetState *self);
+/* 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 interrupt type is one of "user mode", "kernel thread", "system call",
+ The execution mode is one of "user mode", "kernel thread", "system call",
"interrupt request", "fault". */
-typedef GQuark LttvInterruptType;
+typedef GQuark LttvExecutionMode;
+extern LttvExecutionMode
+ LTTV_STATE_USER_MODE,
+ LTTV_STATE_SYSCALL,
+ LTTV_STATE_TRAP,
+ LTTV_STATE_IRQ,
+ LTTV_STATE_MODE_UNKNOWN;
-/* The interrupt number depends on the interrupt type. For user mode or kernel
- thread, which are the normal mode (interrupt 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
+
+/* 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 LttvInterruptNumber;
+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,
typedef GQuark LttvProcessStatus;
+extern LttvProcessStatus
+ LTTV_STATE_UNNAMED,
+ LTTV_STATE_WAIT_FORK,
+ LTTV_STATE_WAIT_CPU,
+ LTTV_STATE_EXIT,
+ LTTV_STATE_WAIT,
+ LTTV_STATE_RUN;
+
-typedef _LttvInterruptState {
- LttvInterruptType t;
- LttvInterruptNumber n;
- LttvTime entry;
- LttvTime last_change;
+typedef struct _LttvExecutionState {
+ LttvExecutionMode t;
+ LttvExecutionSubmode n;
+ LttTime entry;
+ LttTime change;
LttvProcessStatus s;
-} LttvInterruptState;
+} LttvExecutionState;
typedef struct _LttvProcessState {
guint pid;
- LttvTime birth;
+ guint ppid;
+ LttTime creation_time;
GQuark name;
- GArray *interrupt_stack; /* Array of LttvInterruptState */
- LttvInterruptState *state; /* Top of interrupt stack */
- /* opened file descriptors, address map... */
+ GQuark pid_time;
+ GArray *execution_stack; /* Array of LttvExecutionState */
+ LttvExecutionState *state; /* Top of interrupt stack */
+ /* opened file descriptors, address map?... */
} LttvProcessState;
-/* The LttvTraceSetState, LttvTraceState and LttvTracefileState types
+LttvProcessState *lttv_state_find_process(LttvTracefileState *tfs, guint pid);
+
+
+/* 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_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))
-
-typedef struct _LttvTraceSetState LttvTraceSetState;
-typedef struct _LttvTraceSetStateClass LttvTraceSetStateClass;
+#define LTTV_TRACESET_STATE_GET_CLASS(inst) (G_TYPE_INSTANCE_GET_CLASS ((inst), LTTV_TRACESET_STATE_TYPE, LttvTracesetStateClass))
-struct _LttvTraceSetState {
- LttvTraceSetContext parent;
+struct _LttvTracesetState {
+ LttvTracesetContext parent;
};
struct _LttvTracesetStateClass {
- LttvTraceSetClass parent;
+ LttvTracesetContextClass parent;
};
GType lttv_traceset_state_get_type (void);
#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 _LttvTraceState LttvTraceState;
-typedef struct _LttvTraceStateClass LttvTraceStateClass;
-
struct _LttvTraceState {
LttvTraceContext parent;
GHashTable *processes; /* LttvProcessState objects indexed by pid */
/* Block/char devices, locks, memory pages... */
+ GQuark *eventtype_names;
+ GQuark *syscall_names;
+ GQuark *trap_names;
+ GQuark *irq_names;
};
struct _LttvTraceStateClass {
#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))
-typedef struct _LttvTracefileState LttvTracefileState;
-typedef struct _LttvTracefileStateClass LttvTracefileStateClass;
-
struct _LttvTracefileState {
LttvTracefileContext parent;
LttvProcessState *process;
+ GQuark cpu_name;
};
struct _LttvTracefileStateClass {
GType lttv_tracefile_state_get_type (void);
-#endif // PROCESSTRACE_H
+#endif // STATE_H
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