1 #ifndef _LINUX_DEBUGOBJECTS_H 2 #define _LINUX_DEBUGOBJECTS_H 3 4 #include <linux/list.h> 5 #include <linux/spinlock.h> 6 7 enum debug_obj_state { 8 ODEBUG_STATE_NONE, 9 ODEBUG_STATE_INIT, 10 ODEBUG_STATE_INACTIVE, 11 ODEBUG_STATE_ACTIVE, 12 ODEBUG_STATE_DESTROYED, 13 ODEBUG_STATE_NOTAVAILABLE, 14 ODEBUG_STATE_MAX, 15 }; 16 17 struct debug_obj_descr; 18 19 /** 20 * struct debug_obj - representaion of an tracked object 21 * @node: hlist node to link the object into the tracker list 22 * @state: tracked object state 23 * @object: pointer to the real object 24 * @descr: pointer to an object type specific debug description structure 25 */ 26 struct debug_obj { 27 struct hlist_node node; 28 enum debug_obj_state state; 29 void *object; 30 struct debug_obj_descr *descr; 31 }; 32 33 /** 34 * struct debug_obj_descr - object type specific debug description structure 35 * @name: name of the object typee 36 * @fixup_init: fixup function, which is called when the init check 37 * fails 38 * @fixup_activate: fixup function, which is called when the activate check 39 * fails 40 * @fixup_destroy: fixup function, which is called when the destroy check 41 * fails 42 * @fixup_free: fixup function, which is called when the free check 43 * fails 44 */ 45 struct debug_obj_descr { 46 const char *name; 47 48 int (*fixup_init) (void *addr, enum debug_obj_state state); 49 int (*fixup_activate) (void *addr, enum debug_obj_state state); 50 int (*fixup_destroy) (void *addr, enum debug_obj_state state); 51 int (*fixup_free) (void *addr, enum debug_obj_state state); 52 }; 53 54 #ifdef CONFIG_DEBUG_OBJECTS 55 extern void debug_object_init (void *addr, struct debug_obj_descr *descr); 56 extern void 57 debug_object_init_on_stack(void *addr, struct debug_obj_descr *descr); 58 extern void debug_object_activate (void *addr, struct debug_obj_descr *descr); 59 extern void debug_object_deactivate(void *addr, struct debug_obj_descr *descr); 60 extern void debug_object_destroy (void *addr, struct debug_obj_descr *descr); 61 extern void debug_object_free (void *addr, struct debug_obj_descr *descr); 62 63 extern void debug_objects_early_init(void); 64 extern void debug_objects_mem_init(void); 65 #else 66 static inline void 67 debug_object_init (void *addr, struct debug_obj_descr *descr) { } 68 static inline void 69 debug_object_init_on_stack(void *addr, struct debug_obj_descr *descr) { } 70 static inline void 71 debug_object_activate (void *addr, struct debug_obj_descr *descr) { } 72 static inline void 73 debug_object_deactivate(void *addr, struct debug_obj_descr *descr) { } 74 static inline void 75 debug_object_destroy (void *addr, struct debug_obj_descr *descr) { } 76 static inline void 77 debug_object_free (void *addr, struct debug_obj_descr *descr) { } 78 79 static inline void debug_objects_early_init(void) { } 80 static inline void debug_objects_mem_init(void) { } 81 #endif 82 83 #ifdef CONFIG_DEBUG_OBJECTS_FREE 84 extern void debug_check_no_obj_freed(const void *address, unsigned long size); 85 #else 86 static inline void 87 debug_check_no_obj_freed(const void *address, unsigned long size) { } 88 #endif 89 90 #endif 91