mirror of https://gitee.com/openkylin/linux.git
56 lines
1.4 KiB
C
56 lines
1.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef _LIBLOCKDEP_COMMON_H
|
|
#define _LIBLOCKDEP_COMMON_H
|
|
|
|
#include <pthread.h>
|
|
|
|
#define NR_LOCKDEP_CACHING_CLASSES 2
|
|
#define MAX_LOCKDEP_SUBCLASSES 8UL
|
|
|
|
#ifndef CALLER_ADDR0
|
|
#define CALLER_ADDR0 ((unsigned long)__builtin_return_address(0))
|
|
#endif
|
|
|
|
#ifndef _RET_IP_
|
|
#define _RET_IP_ CALLER_ADDR0
|
|
#endif
|
|
|
|
#ifndef _THIS_IP_
|
|
#define _THIS_IP_ ({ __label__ __here; __here: (unsigned long)&&__here; })
|
|
#endif
|
|
|
|
struct lockdep_subclass_key {
|
|
char __one_byte;
|
|
};
|
|
|
|
struct lock_class_key {
|
|
struct lockdep_subclass_key subkeys[MAX_LOCKDEP_SUBCLASSES];
|
|
};
|
|
|
|
struct lockdep_map {
|
|
struct lock_class_key *key;
|
|
struct lock_class *class_cache[NR_LOCKDEP_CACHING_CLASSES];
|
|
const char *name;
|
|
#ifdef CONFIG_LOCK_STAT
|
|
int cpu;
|
|
unsigned long ip;
|
|
#endif
|
|
};
|
|
|
|
void lockdep_init_map(struct lockdep_map *lock, const char *name,
|
|
struct lock_class_key *key, int subclass);
|
|
void lock_acquire(struct lockdep_map *lock, unsigned int subclass,
|
|
int trylock, int read, int check,
|
|
struct lockdep_map *nest_lock, unsigned long ip);
|
|
void lock_release(struct lockdep_map *lock, int nested,
|
|
unsigned long ip);
|
|
void lockdep_reset_lock(struct lockdep_map *lock);
|
|
void lockdep_register_key(struct lock_class_key *key);
|
|
void lockdep_unregister_key(struct lock_class_key *key);
|
|
extern void debug_check_no_locks_freed(const void *from, unsigned long len);
|
|
|
|
#define STATIC_LOCKDEP_MAP_INIT(_name, _key) \
|
|
{ .name = (_name), .key = (void *)(_key), }
|
|
|
|
#endif
|