| Server IP : 74.208.127.88 / Your IP : 216.73.216.19 Web Server : Apache/2.4.41 (Ubuntu) System : Linux ubuntu 5.4.0-163-generic #180-Ubuntu SMP Tue Sep 5 13:21:23 UTC 2023 x86_64 User : www-data ( 33) PHP Version : 7.4.3-4ubuntu2.29 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,pcntl_unshare, MySQL : OFF | cURL : ON | WGET : ON | Perl : ON | Python : OFF | Sudo : ON | Pkexec : ON Directory : /proc/self/root/proc/self/root/lib/modules/5.4.0-163-generic/build/include/linux/ |
Upload File : |
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_DEBUGOBJECTS_H
#define _LINUX_DEBUGOBJECTS_H
#include <linux/list.h>
#include <linux/spinlock.h>
enum debug_obj_state {
ODEBUG_STATE_NONE,
ODEBUG_STATE_INIT,
ODEBUG_STATE_INACTIVE,
ODEBUG_STATE_ACTIVE,
ODEBUG_STATE_DESTROYED,
ODEBUG_STATE_NOTAVAILABLE,
ODEBUG_STATE_MAX,
};
struct debug_obj_descr;
/**
* struct debug_obj - representaion 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
* @descr: pointer to an object type specific debug description structure
*/
struct debug_obj {
struct hlist_node node;
enum debug_obj_state state;
unsigned int astate;
void *object;
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. 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;
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_on_stack(void *addr, struct debug_obj_descr *descr);
extern int 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);
extern void debug_object_assert_init(void *addr, struct debug_obj_descr *descr);
/*
* Active state:
* - Set at 0 upon initialization.
* - Must return to 0 before deactivation.
*/
extern void
debug_object_active_state(void *addr, 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) { }
static inline void
debug_object_init_on_stack(void *addr, struct debug_obj_descr *descr) { }
static inline int
debug_object_activate (void *addr, struct debug_obj_descr *descr) { return 0; }
static inline void
debug_object_deactivate(void *addr, struct debug_obj_descr *descr) { }
static inline void
debug_object_destroy (void *addr, struct debug_obj_descr *descr) { }
static inline void
debug_object_free (void *addr, struct debug_obj_descr *descr) { }
static inline void
debug_object_assert_init(void *addr, struct debug_obj_descr *descr) { }
static inline void debug_objects_early_init(void) { }
static inline void debug_objects_mem_init(void) { }
#endif
#ifdef CONFIG_DEBUG_OBJECTS_FREE
extern void debug_check_no_obj_freed(const void *address, unsigned long size);
#else
static inline void
debug_check_no_obj_freed(const void *address, unsigned long size) { }
#endif
#endif