signal.h

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#ifndef _UAPI__SPARC_SIGNAL_H
#define _UAPI__SPARC_SIGNAL_H

#include <asm/sigcontext.h>
#include <linux/compiler.h>


/* 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
#ifdef __arch64__
#define _NSIG_BPW       64
#else
#define _NSIG_BPW       32
#endif
#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 __new_sigaction32   sigaction32
#define __old_sigset_t      old_sigset_t
#define __old_sigaction     old_sigaction
#define __old_sigaction32   old_sigaction32
#else
#define _NSIG           __OLD_NSIG
#define NSIG            _NSIG
#define __old_sigset_t      sigset_t
#define __old_sigaction     sigaction
#define __old_sigaction32   sigaction32
#endif

#ifndef __ASSEMBLY__

typedef unsigned long __old_sigset_t;            /* at least 32 bits */

typedef struct {
       unsigned long sig[_NSIG_WORDS];
} __new_sigset_t;

/* A SunOS sigstack */
struct sigstack {
    /* XXX 32-bit pointers pinhead XXX */
    char *the_stack;
    int   cur_status;
};

/* 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_RESTART flag to get restarting signals (which were the default long ago)
 */
#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_NODEFER  0x20u
#define SA_NOCLDWAIT    0x100u
#define SA_SIGINFO      0x200u

#define SA_NOMASK   SA_NODEFER

#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


#include <asm-generic/signal-defs.h>

struct __new_sigaction {
    __sighandler_t      sa_handler;
    unsigned long       sa_flags;
    __sigrestore_t      sa_restorer;  /* not used by Linux/SPARC yet */
    __new_sigset_t      sa_mask;
};

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 yet */
};

typedef struct sigaltstack {
    void            __user *ss_sp;
    int         ss_flags;
    size_t          ss_size;
} stack_t;


#endif /* !(__ASSEMBLY__) */

#endif /* _UAPI__SPARC_SIGNAL_H */