1 #ifndef __UM_SYSTEM_GENERIC_H
2 #define __UM_SYSTEM_GENERIC_H
4 #include "sysdep/system.h"
6 extern void *switch_to(void *prev
, void *next
, void *last
);
8 extern int get_signals(void);
9 extern int set_signals(int enable
);
10 extern int get_signals(void);
11 extern void block_signals(void);
12 extern void unblock_signals(void);
14 #define local_save_flags(flags) do { typecheck(unsigned long, flags); \
15 (flags) = get_signals(); } while(0)
16 #define local_irq_restore(flags) do { typecheck(unsigned long, flags); \
17 set_signals(flags); } while(0)
19 #define local_irq_save(flags) do { local_save_flags(flags); \
20 local_irq_disable(); } while(0)
22 #define local_irq_enable() unblock_signals()
23 #define local_irq_disable() block_signals()
25 #define irqs_disabled() \
27 unsigned long flags; \
28 local_save_flags(flags); \
32 extern void *_switch_to(void *prev
, void *next
, void *last
);
33 #define switch_to(prev, next, last) prev = _switch_to(prev, next, last)