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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 |
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