Add the rt linux 4.1.3-rt3 as base
[kvmfornfv.git] / kernel / tools / lib / lockdep / include / liblockdep / common.h
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);
46
47 #define STATIC_LOCKDEP_MAP_INIT(_name, _key) \
48         { .name = (_name), .key = (void *)(_key), }
49
50 #endif