Sasha Levin | 45e6207 | 2013-06-13 18:41:18 -0400 | [diff] [blame] | 1 | #ifndef _LIBLOCKDEP_COMMON_H |
| 2 | #define _LIBLOCKDEP_COMMON_H |
| 3 | |
| 4 | #include <pthread.h> |
| 5 | |
| 6 | #define NR_LOCKDEP_CACHING_CLASSES 2 |
| 7 | #define MAX_LOCKDEP_SUBCLASSES 8UL |
| 8 | |
| 9 | #ifndef CALLER_ADDR0 |
| 10 | #define CALLER_ADDR0 ((unsigned long)__builtin_return_address(0)) |
| 11 | #endif |
| 12 | |
| 13 | #ifndef _RET_IP_ |
| 14 | #define _RET_IP_ CALLER_ADDR0 |
| 15 | #endif |
| 16 | |
| 17 | #ifndef _THIS_IP_ |
| 18 | #define _THIS_IP_ ({ __label__ __here; __here: (unsigned long)&&__here; }) |
| 19 | #endif |
| 20 | |
| 21 | struct lockdep_subclass_key { |
| 22 | char __one_byte; |
| 23 | }; |
| 24 | |
| 25 | struct lock_class_key { |
| 26 | struct lockdep_subclass_key subkeys[MAX_LOCKDEP_SUBCLASSES]; |
| 27 | }; |
| 28 | |
| 29 | struct lockdep_map { |
| 30 | struct lock_class_key *key; |
| 31 | struct lock_class *class_cache[NR_LOCKDEP_CACHING_CLASSES]; |
| 32 | const char *name; |
| 33 | #ifdef CONFIG_LOCK_STAT |
| 34 | int cpu; |
| 35 | unsigned long ip; |
| 36 | #endif |
| 37 | }; |
| 38 | |
| 39 | void lockdep_init_map(struct lockdep_map *lock, const char *name, |
| 40 | struct lock_class_key *key, int subclass); |
| 41 | void lock_acquire(struct lockdep_map *lock, unsigned int subclass, |
| 42 | int trylock, int read, int check, |
| 43 | struct lockdep_map *nest_lock, unsigned long ip); |
| 44 | void lock_release(struct lockdep_map *lock, int nested, |
| 45 | unsigned long ip); |
Sasha Levin | 2b62c2d | 2015-11-06 15:47:29 -0500 | [diff] [blame] | 46 | extern void debug_check_no_locks_freed(const void *from, unsigned long len); |
Sasha Levin | 45e6207 | 2013-06-13 18:41:18 -0400 | [diff] [blame] | 47 | |
| 48 | #define STATIC_LOCKDEP_MAP_INIT(_name, _key) \ |
| 49 | { .name = (_name), .key = (void *)(_key), } |
| 50 | |
| 51 | #endif |