spinlock_types_up.h
上传用户:szlgq88
上传日期:2009-04-28
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文件大小:1k
- #ifndef __LINUX_SPINLOCK_TYPES_UP_H
- #define __LINUX_SPINLOCK_TYPES_UP_H
- #ifndef __LINUX_SPINLOCK_TYPES_H
- # error "please don't include this file directly"
- #endif
- /*
- * include/linux/spinlock_types_up.h - spinlock type definitions for UP
- *
- * portions Copyright 2005, Red Hat, Inc., Ingo Molnar
- * Released under the General Public License (GPL).
- */
- #ifdef CONFIG_DEBUG_SPINLOCK
- typedef struct {
- volatile unsigned int slock;
- } raw_spinlock_t;
- #define __RAW_SPIN_LOCK_UNLOCKED { 1 }
- #else
- /*
- * All gcc 2.95 versions and early versions of 2.96 have a nasty bug
- * with empty initializers.
- */
- #if (__GNUC__ > 2)
- typedef struct { } raw_spinlock_t;
- #define __RAW_SPIN_LOCK_UNLOCKED { }
- #else
- typedef struct { int gcc_is_buggy; } raw_spinlock_t;
- #define __RAW_SPIN_LOCK_UNLOCKED (raw_spinlock_t) { 0 }
- #endif
- #endif
- #if (__GNUC__ > 2)
- typedef struct {
- /* no debug version on UP */
- } raw_rwlock_t;
- #define __RAW_RW_LOCK_UNLOCKED { }
- #else
- typedef struct { int gcc_is_buggy; } raw_rwlock_t;
- #define __RAW_RW_LOCK_UNLOCKED (raw_rwlock_t) { 0 }
- #endif
- #endif /* __LINUX_SPINLOCK_TYPES_UP_H */