- /* $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>
- #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 - 1)
- #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;
- /* A SunOS sigstack */
- struct sigstack {
- char *the_stack;
- int cur_status;
- };
- /* Sigvec flags */
- #define SV_SSTACK 1 /* This signal handler should use sig-stack */
- #define SV_INTR 2 /* Sig return should not restart system call */
- #define SV_RESET 4 /* Set handler to SIG_DFL upon taken signal */
- #define SV_IGNCHILD 8 /* 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 0x10
- #define SA_NOMASK 0x20
- #define SA_SHIRQ 0x40
- #define SA_NOCLDWAIT 0x100 /* not supported yet */
- #define SA_SIGINFO 0x200
- #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 */
- 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;
- };
- #ifdef __KERNEL__
- struct k_sigaction {
- struct __new_sigaction sa;
- void *ka_restorer;
- };
- #endif
- 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 *ss_sp;
- int ss_flags;
- size_t ss_size;
- } stack_t;
- #endif /* !(__ASSEMBLY__) */
- #endif /* !(_ASMSPARC_SIGNAL_H) */