root/include/asm-generic/signal.h

INCLUDED FROM

#ifndef __ASM_GENERIC_SIGNAL_H
#define __ASM_GENERIC_SIGNAL_H

#include <linux/compiler.h>

#ifndef SIG_BLOCK
#define SIG_BLOCK          0    /* for blocking signals */
#endif
#ifndef SIG_UNBLOCK
#define SIG_UNBLOCK        1    /* for unblocking signals */
#endif
#ifndef SIG_SETMASK
#define SIG_SETMASK        2    /* for setting the signal mask */
#endif

#ifndef __ASSEMBLY__
typedef void __signalfn_t(int);
typedef __signalfn_t __user *__sighandler_t;

typedef void __restorefn_t(void);
typedef __restorefn_t __user *__sigrestore_t;

#define SIG_DFL ((__force __sighandler_t)0)     /* default signal handling */
#define SIG_IGN ((__force __sighandler_t)1)     /* ignore signal */
#define SIG_ERR ((__force __sighandler_t)-1)    /* error return from signal */
#endif

#endif /* __ASM_GENERIC_SIGNAL_H */