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#ifndef _ASMAXP_SIGNAL_H
#define _ASMAXP_SIGNAL_H
#include <linux/types.h>
/* Avoid too many header ordering problems. */
struct siginfo;
#ifdef __KERNEL__
/* Digital Unix defines 64 signals. Most things should be clean enough
to redefine this at will, if care is taken to make libc match. */
#define _NSIG 64
#define _NSIG_BPW 64
#define _NSIG_WORDS (_NSIG / _NSIG_BPW)
typedef unsigned long old_sigset_t; /* at least 32 bits */
typedef struct {
unsigned long sig[_NSIG_WORDS];
} sigset_t;
#else
/* Here we must cater to libcs that poke about in kernel headers. */
#define NSIG 32
typedef unsigned long sigset_t;
#endif /* __KERNEL__ */
/*
* Linux/AXP has different signal numbers that Linux/i386: I'm trying
* to make it OSF/1 binary compatible, at least for normal binaries.
*/
#define SIGHUP 1
#define SIGINT 2
#define SIGQUIT 3
#define SIGILL 4
#define SIGTRAP 5
#define SIGABRT 6
#define SIGEMT 7
#define SIGFPE 8
#define SIGKILL 9
#define SIGBUS 10
#define SIGSEGV 11
#define SIGSYS 12
#define SIGPIPE 13
#define SIGALRM 14
#define SIGTERM 15
#define SIGURG 16
#define SIGSTOP 17
#define SIGTSTP 18
#define SIGCONT 19
#define SIGCHLD 20
#define SIGTTIN 21
#define SIGTTOU 22
#define SIGIO 23
#define SIGXCPU 24
#define SIGXFSZ 25
#define SIGVTALRM 26
#define SIGPROF 27
#define SIGWINCH 28
#define SIGINFO 29
#define SIGUSR1 30
#define SIGUSR2 31
#define SIGPOLL SIGIO
#define SIGPWR SIGINFO
#define SIGIOT SIGABRT
/* These should not be considered constants from userland. */
#define SIGRTMIN 32
#define SIGRTMAX (_NSIG-1)
/*
* SA_FLAGS values:
*
* SA_ONSTACK indicates that a registered stack_t will be used.
* SA_INTERRUPT is a no-op, but left due to historical reasons. Use the
* SA_RESTART flag to get restarting signals (which were the default long ago)
* SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
* SA_RESETHAND clears the handler when the signal is delivered.
* SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
* SA_NODEFER prevents the current signal from being masked in the handler.
*
* SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
* Unix names RESETHAND and NODEFER respectively.
*/
#define SA_ONSTACK 0x00000001
#define SA_RESTART 0x00000002
#define SA_NOCLDSTOP 0x00000004
#define SA_NODEFER 0x00000008
#define SA_RESETHAND 0x00000010
#define SA_NOCLDWAIT 0x00000020 /* not supported yet */
#define SA_SIGINFO 0x00000040
#define SA_ONESHOT SA_RESETHAND
#define SA_NOMASK SA_NODEFER
#define SA_INTERRUPT 0x20000000 /* dummy -- ignored */
/*
* sigaltstack controls
*/
#define SS_ONSTACK 1
#define SS_DISABLE 2
#define MINSIGSTKSZ 4096
#define SIGSTKSZ 16384
#ifdef __KERNEL__
/*
* These values of sa_flags are used only by the kernel as part of the
* irq handling routines.
*
* SA_INTERRUPT is also used by the irq handling routines.
* SA_SHIRQ is for shared interrupt support on PCI and EISA.
*/
#define SA_PROBE SA_ONESHOT
#define SA_SAMPLE_RANDOM SA_RESTART
#define SA_SHIRQ 0x40000000
#endif
#define SIG_BLOCK 1 /* for blocking signals */
#define SIG_UNBLOCK 2 /* for unblocking signals */
#define SIG_SETMASK 3 /* for setting the signal mask */
/* Type of a signal handler. */
typedef void (*__sighandler_t)(int);
#define SIG_DFL ((__sighandler_t)0) /* default signal handling */
#define SIG_IGN ((__sighandler_t)1) /* ignore signal */
#define SIG_ERR ((__sighandler_t)-1) /* error return from signal */
#ifdef __KERNEL__
struct osf_sigaction {
__sighandler_t sa_handler;
old_sigset_t sa_mask;
int sa_flags;
};
struct sigaction {
__sighandler_t sa_handler;
unsigned long sa_flags;
sigset_t sa_mask; /* mask last for extensibility */
};
struct k_sigaction {
struct sigaction sa;
void (*ka_restorer)(void);
};
#else
/* Here we must cater to libcs that poke about in kernel headers. */
struct sigaction {
union {
__sighandler_t _sa_handler;
void (*_sa_sigaction)(int, struct siginfo *, void *);
} _u;
sigset_t sa_mask;
int sa_flags;
};
#define sa_handler _u._sa_handler
#define sa_sigaction _u._sa_sigaction
#endif /* __KERNEL__ */
typedef struct sigaltstack {
void *ss_sp;
int ss_flags;
size_t ss_size;
} stack_t;
/* sigstack(2) is deprecated, and will be withdrawn in a future version
of the X/Open CAE Specification. Use sigaltstack instead. It is only
implemented here for OSF/1 compatibility. */
struct sigstack {
void *ss_sp;
int ss_onstack;
};
#ifdef __KERNEL__
#include <asm/sigcontext.h>
#endif
#endif
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