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