diff options
Diffstat (limited to 'include/linux/debugobjects.h')
| -rw-r--r-- | include/linux/debugobjects.h | 74 |
1 files changed, 51 insertions, 23 deletions
diff --git a/include/linux/debugobjects.h b/include/linux/debugobjects.h index 8c243aaa86a7..8b95545e7924 100644 --- a/include/linux/debugobjects.h +++ b/include/linux/debugobjects.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _LINUX_DEBUGOBJECTS_H #define _LINUX_DEBUGOBJECTS_H @@ -17,64 +18,91 @@ enum debug_obj_state { struct debug_obj_descr; /** - * struct debug_obj - representaion of an tracked object + * struct debug_obj - representation of an tracked object * @node: hlist node to link the object into the tracker list * @state: tracked object state + * @astate: current active state * @object: pointer to the real object + * @batch_last: pointer to the last hlist node in a batch * @descr: pointer to an object type specific debug description structure */ struct debug_obj { - struct hlist_node node; - enum debug_obj_state state; - void *object; - struct debug_obj_descr *descr; + struct hlist_node node; + enum debug_obj_state state; + unsigned int astate; + union { + void *object; + struct hlist_node *batch_last; + }; + const struct debug_obj_descr *descr; }; /** * struct debug_obj_descr - object type specific debug description structure + * * @name: name of the object typee + * @debug_hint: function returning address, which have associated + * kernel symbol, to allow identify the object + * @is_static_object: return true if the obj is static, otherwise return false * @fixup_init: fixup function, which is called when the init check - * fails + * fails. All fixup functions must return true if fixup + * was successful, otherwise return false * @fixup_activate: fixup function, which is called when the activate check * fails * @fixup_destroy: fixup function, which is called when the destroy check * fails * @fixup_free: fixup function, which is called when the free check * fails + * @fixup_assert_init: fixup function, which is called when the assert_init + * check fails */ struct debug_obj_descr { const char *name; - - int (*fixup_init) (void *addr, enum debug_obj_state state); - int (*fixup_activate) (void *addr, enum debug_obj_state state); - int (*fixup_destroy) (void *addr, enum debug_obj_state state); - int (*fixup_free) (void *addr, enum debug_obj_state state); + void *(*debug_hint)(void *addr); + bool (*is_static_object)(void *addr); + bool (*fixup_init)(void *addr, enum debug_obj_state state); + bool (*fixup_activate)(void *addr, enum debug_obj_state state); + bool (*fixup_destroy)(void *addr, enum debug_obj_state state); + bool (*fixup_free)(void *addr, enum debug_obj_state state); + bool (*fixup_assert_init)(void *addr, enum debug_obj_state state); }; #ifdef CONFIG_DEBUG_OBJECTS -extern void debug_object_init (void *addr, struct debug_obj_descr *descr); +extern void debug_object_init (void *addr, const struct debug_obj_descr *descr); +extern void +debug_object_init_on_stack(void *addr, const struct debug_obj_descr *descr); +extern int debug_object_activate (void *addr, const struct debug_obj_descr *descr); +extern void debug_object_deactivate(void *addr, const struct debug_obj_descr *descr); +extern void debug_object_destroy (void *addr, const struct debug_obj_descr *descr); +extern void debug_object_free (void *addr, const struct debug_obj_descr *descr); +extern void debug_object_assert_init(void *addr, const struct debug_obj_descr *descr); + +/* + * Active state: + * - Set at 0 upon initialization. + * - Must return to 0 before deactivation. + */ extern void -debug_object_init_on_stack(void *addr, struct debug_obj_descr *descr); -extern void debug_object_activate (void *addr, struct debug_obj_descr *descr); -extern void debug_object_deactivate(void *addr, struct debug_obj_descr *descr); -extern void debug_object_destroy (void *addr, struct debug_obj_descr *descr); -extern void debug_object_free (void *addr, struct debug_obj_descr *descr); +debug_object_active_state(void *addr, const struct debug_obj_descr *descr, + unsigned int expect, unsigned int next); extern void debug_objects_early_init(void); extern void debug_objects_mem_init(void); #else static inline void -debug_object_init (void *addr, struct debug_obj_descr *descr) { } +debug_object_init (void *addr, const struct debug_obj_descr *descr) { } static inline void -debug_object_init_on_stack(void *addr, struct debug_obj_descr *descr) { } +debug_object_init_on_stack(void *addr, const struct debug_obj_descr *descr) { } +static inline int +debug_object_activate (void *addr, const struct debug_obj_descr *descr) { return 0; } static inline void -debug_object_activate (void *addr, struct debug_obj_descr *descr) { } +debug_object_deactivate(void *addr, const struct debug_obj_descr *descr) { } static inline void -debug_object_deactivate(void *addr, struct debug_obj_descr *descr) { } +debug_object_destroy (void *addr, const struct debug_obj_descr *descr) { } static inline void -debug_object_destroy (void *addr, struct debug_obj_descr *descr) { } +debug_object_free (void *addr, const struct debug_obj_descr *descr) { } static inline void -debug_object_free (void *addr, struct debug_obj_descr *descr) { } +debug_object_assert_init(void *addr, const struct debug_obj_descr *descr) { } static inline void debug_objects_early_init(void) { } static inline void debug_objects_mem_init(void) { } |