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/* $Id: signal.h,v 1.35 1999/09/06 08:22:04 jj Exp $ */
#ifndef _ASMSPARC_SIGNAL_H
#define _ASMSPARC_SIGNAL_H
#include <asm/sigcontext.h>
#include <linux/compiler.h>
#ifdef __KERNEL__
#ifndef __ASSEMBLY__
#include <linux/personality.h>
#include <linux/types.h>
#endif
#endif
/* On the Sparc the signal handlers get passed a 'sub-signal' code
* for certain signal types, which we document here.
*/
#define SIGHUP 1
#define SIGINT 2
#define SIGQUIT 3
#define SIGILL 4
#define SUBSIG_STACK 0
#define SUBSIG_ILLINST 2
#define SUBSIG_PRIVINST 3
#define SUBSIG_BADTRAP(t) (0x80 + (t))
#define SIGTRAP 5
#define SIGABRT 6
#define SIGIOT 6
#define SIGEMT 7
#define SUBSIG_TAG 10
#define SIGFPE 8
#define SUBSIG_FPDISABLED 0x400
#define SUBSIG_FPERROR 0x404
#define SUBSIG_FPINTOVFL 0x001
#define SUBSIG_FPSTSIG 0x002
#define SUBSIG_IDIVZERO 0x014
#define SUBSIG_FPINEXACT 0x0c4
#define SUBSIG_FPDIVZERO 0x0c8
#define SUBSIG_FPUNFLOW 0x0cc
#define SUBSIG_FPOPERROR 0x0d0
#define SUBSIG_FPOVFLOW 0x0d4
#define SIGKILL 9
#define SIGBUS 10
#define SUBSIG_BUSTIMEOUT 1
#define SUBSIG_ALIGNMENT 2
#define SUBSIG_MISCERROR 5
#define SIGSEGV 11
#define SUBSIG_NOMAPPING 3
#define SUBSIG_PROTECTION 4
#define SUBSIG_SEGERROR 5
#define SIGSYS 12
#define SIGPIPE 13
#define SIGALRM 14
#define SIGTERM 15
#define SIGURG 16
/* SunOS values which deviate from the Linux/i386 ones */
#define SIGSTOP 17
#define SIGTSTP 18
#define SIGCONT 19
#define SIGCHLD 20
#define SIGTTIN 21
#define SIGTTOU 22
#define SIGIO 23
#define SIGPOLL SIGIO /* SysV name for SIGIO */
#define SIGXCPU 24
#define SIGXFSZ 25
#define SIGVTALRM 26
#define SIGPROF 27
#define SIGWINCH 28
#define SIGLOST 29
#define SIGPWR SIGLOST
#define SIGUSR1 30
#define SIGUSR2 31
/* Most things should be clean enough to redefine this at will, if care
* is taken to make libc match.
*/
#define __OLD_NSIG 32
#define __NEW_NSIG 64
#define _NSIG_BPW 32
#define _NSIG_WORDS (__NEW_NSIG / _NSIG_BPW)
#define SIGRTMIN 32
#define SIGRTMAX __NEW_NSIG
#if defined(__KERNEL__) || defined(__WANT_POSIX1B_SIGNALS__)
#define _NSIG __NEW_NSIG
#define __new_sigset_t sigset_t
#define __new_sigaction sigaction
#define __old_sigset_t old_sigset_t
#define __old_sigaction old_sigaction
#else
#define _NSIG __OLD_NSIG
#define __old_sigset_t sigset_t
#define __old_sigaction sigaction
#endif
#ifndef __ASSEMBLY__
typedef unsigned long __old_sigset_t;
typedef struct {
unsigned long sig[_NSIG_WORDS];
} __new_sigset_t;
#ifdef __KERNEL__
/* A SunOS sigstack */
struct sigstack {
char *the_stack;
int cur_status;
};
#endif
/* Sigvec flags */
#define _SV_SSTACK 1u /* This signal handler should use sig-stack */
#define _SV_INTR 2u /* Sig return should not restart system call */
#define _SV_RESET 4u /* Set handler to SIG_DFL upon taken signal */
#define _SV_IGNCHILD 8u /* Do not send SIGCHLD */
/*
* sa_flags values: SA_STACK is not currently supported, but will allow the
* usage of signal stacks by using the (now obsolete) sa_restorer field in
* the sigaction structure as a stack pointer. This is now possible due to
* the changes in signal handling. LBT 010493.
* 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_SHIRQ flag is for shared interrupt support on PCI and EISA.
*/
#define SA_NOCLDSTOP _SV_IGNCHILD
#define SA_STACK _SV_SSTACK
#define SA_ONSTACK _SV_SSTACK
#define SA_RESTART _SV_INTR
#define SA_ONESHOT _SV_RESET
#define SA_INTERRUPT 0x10u
#define SA_NOMASK 0x20u
#define SA_SHIRQ 0x40u
#define SA_NOCLDWAIT 0x100u
#define SA_SIGINFO 0x200u
#define SIG_BLOCK 0x01 /* for blocking signals */
#define SIG_UNBLOCK 0x02 /* for unblocking signals */
#define SIG_SETMASK 0x04 /* for setting the signal mask */
/*
* 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.
*
* DJHR
* SA_STATIC_ALLOC is used for the SPARC system to indicate that this
* interrupt handler's irq structure should be statically allocated
* by the request_irq routine.
* The alternative is that arch/sparc/kernel/irq.c has carnal knowledge
* of interrupt usage and that sucks. Also without a flag like this
* it may be possible for the free_irq routine to attempt to free
* statically allocated data.. which is NOT GOOD.
*
*/
#define SA_PROBE SA_ONESHOT
#define SA_SAMPLE_RANDOM SA_RESTART
#define SA_STATIC_ALLOC 0x80
#endif
/* Type of a signal handler. */
#ifdef __KERNEL__
typedef void (*__sighandler_t)(int, int, struct sigcontext *, char *);
#else
typedef void (*__sighandler_t)(int);
#endif
#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 __new_sigaction {
__sighandler_t sa_handler;
unsigned long sa_flags;
void (*sa_restorer)(void); /* Not used by Linux/SPARC */
__new_sigset_t sa_mask;
};
struct k_sigaction {
struct __new_sigaction sa;
void __user *ka_restorer;
};
struct __old_sigaction {
__sighandler_t sa_handler;
__old_sigset_t sa_mask;
unsigned long sa_flags;
void (*sa_restorer) (void); /* not used by Linux/SPARC */
};
typedef struct sigaltstack {
void __user *ss_sp;
int ss_flags;
size_t ss_size;
} stack_t;
struct sparc_deliver_cookie {
int restart_syscall;
unsigned long orig_i0;
};
struct pt_regs;
extern void ptrace_signal_deliver(struct pt_regs *regs, void *cookie);
#endif /* !(__KERNEL__) */
#endif /* !(__ASSEMBLY__) */
#endif /* !(_ASMSPARC_SIGNAL_H) */
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