b1ecb4c3a9
New file - asm-generic/signal.h. Contains declarations of __sighandler_t, __sigrestore_t, SIG_DFL, SIG_IGN, SIG_ERR and default definitions of SIG_BLOCK, SIG_UNBLOCK and SIG_SETMASK. asm-*/signal.h switched to including it. The only exception is asm-parisc/signal.h that wants its own declaration of __sighandler_t; that one is left as-is. asm-ppc64/signal.h required one more thing - unlike everybody else it used __sigrestorer_t instead of usual __sigrestore_t. PPC64 switched to common spelling. Signed-off-by: Al Viro <viro@parcelfarce.linux.theplanet.co.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
218 lines
5.4 KiB
C
218 lines
5.4 KiB
C
/* $Id: signal.h,v 1.35 1999/09/06 08:22:04 jj Exp $ */
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#ifndef _ASMSPARC_SIGNAL_H
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#define _ASMSPARC_SIGNAL_H
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#include <asm/sigcontext.h>
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#include <linux/compiler.h>
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#ifdef __KERNEL__
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#ifndef __ASSEMBLY__
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#include <linux/personality.h>
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#include <linux/types.h>
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#endif
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#endif
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/* On the Sparc the signal handlers get passed a 'sub-signal' code
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* for certain signal types, which we document here.
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*/
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#define SIGHUP 1
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#define SIGINT 2
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#define SIGQUIT 3
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#define SIGILL 4
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#define SUBSIG_STACK 0
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#define SUBSIG_ILLINST 2
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#define SUBSIG_PRIVINST 3
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#define SUBSIG_BADTRAP(t) (0x80 + (t))
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#define SIGTRAP 5
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#define SIGABRT 6
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#define SIGIOT 6
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#define SIGEMT 7
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#define SUBSIG_TAG 10
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#define SIGFPE 8
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#define SUBSIG_FPDISABLED 0x400
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#define SUBSIG_FPERROR 0x404
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#define SUBSIG_FPINTOVFL 0x001
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#define SUBSIG_FPSTSIG 0x002
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#define SUBSIG_IDIVZERO 0x014
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#define SUBSIG_FPINEXACT 0x0c4
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#define SUBSIG_FPDIVZERO 0x0c8
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#define SUBSIG_FPUNFLOW 0x0cc
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#define SUBSIG_FPOPERROR 0x0d0
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#define SUBSIG_FPOVFLOW 0x0d4
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#define SIGKILL 9
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#define SIGBUS 10
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#define SUBSIG_BUSTIMEOUT 1
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#define SUBSIG_ALIGNMENT 2
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#define SUBSIG_MISCERROR 5
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#define SIGSEGV 11
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#define SUBSIG_NOMAPPING 3
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#define SUBSIG_PROTECTION 4
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#define SUBSIG_SEGERROR 5
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#define SIGSYS 12
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#define SIGPIPE 13
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#define SIGALRM 14
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#define SIGTERM 15
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#define SIGURG 16
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/* SunOS values which deviate from the Linux/i386 ones */
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#define SIGSTOP 17
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#define SIGTSTP 18
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#define SIGCONT 19
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#define SIGCHLD 20
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#define SIGTTIN 21
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#define SIGTTOU 22
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#define SIGIO 23
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#define SIGPOLL SIGIO /* SysV name for SIGIO */
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#define SIGXCPU 24
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#define SIGXFSZ 25
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#define SIGVTALRM 26
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#define SIGPROF 27
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#define SIGWINCH 28
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#define SIGLOST 29
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#define SIGPWR SIGLOST
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#define SIGUSR1 30
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#define SIGUSR2 31
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/* Most things should be clean enough to redefine this at will, if care
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* is taken to make libc match.
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*/
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#define __OLD_NSIG 32
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#define __NEW_NSIG 64
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#define _NSIG_BPW 32
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#define _NSIG_WORDS (__NEW_NSIG / _NSIG_BPW)
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#define SIGRTMIN 32
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#define SIGRTMAX __NEW_NSIG
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#if defined(__KERNEL__) || defined(__WANT_POSIX1B_SIGNALS__)
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#define _NSIG __NEW_NSIG
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#define __new_sigset_t sigset_t
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#define __new_sigaction sigaction
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#define __old_sigset_t old_sigset_t
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#define __old_sigaction old_sigaction
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#else
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#define _NSIG __OLD_NSIG
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#define __old_sigset_t sigset_t
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#define __old_sigaction sigaction
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#endif
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#ifndef __ASSEMBLY__
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typedef unsigned long __old_sigset_t;
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typedef struct {
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unsigned long sig[_NSIG_WORDS];
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} __new_sigset_t;
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#ifdef __KERNEL__
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/* A SunOS sigstack */
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struct sigstack {
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char *the_stack;
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int cur_status;
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};
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#endif
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/* Sigvec flags */
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#define _SV_SSTACK 1u /* This signal handler should use sig-stack */
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#define _SV_INTR 2u /* Sig return should not restart system call */
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#define _SV_RESET 4u /* Set handler to SIG_DFL upon taken signal */
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#define _SV_IGNCHILD 8u /* Do not send SIGCHLD */
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/*
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* sa_flags values: SA_STACK is not currently supported, but will allow the
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* usage of signal stacks by using the (now obsolete) sa_restorer field in
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* the sigaction structure as a stack pointer. This is now possible due to
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* the changes in signal handling. LBT 010493.
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* SA_INTERRUPT is a no-op, but left due to historical reasons. Use the
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* SA_RESTART flag to get restarting signals (which were the default long ago)
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* SA_SHIRQ flag is for shared interrupt support on PCI and EISA.
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*/
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#define SA_NOCLDSTOP _SV_IGNCHILD
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#define SA_STACK _SV_SSTACK
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#define SA_ONSTACK _SV_SSTACK
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#define SA_RESTART _SV_INTR
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#define SA_ONESHOT _SV_RESET
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#define SA_INTERRUPT 0x10u
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#define SA_NOMASK 0x20u
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#define SA_NOCLDWAIT 0x100u
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#define SA_SIGINFO 0x200u
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#define SIG_BLOCK 0x01 /* for blocking signals */
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#define SIG_UNBLOCK 0x02 /* for unblocking signals */
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#define SIG_SETMASK 0x04 /* for setting the signal mask */
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/*
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* sigaltstack controls
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*/
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#define SS_ONSTACK 1
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#define SS_DISABLE 2
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#define MINSIGSTKSZ 4096
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#define SIGSTKSZ 16384
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#ifdef __KERNEL__
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/*
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* DJHR
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* SA_STATIC_ALLOC is used for the SPARC system to indicate that this
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* interrupt handler's irq structure should be statically allocated
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* by the request_irq routine.
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* The alternative is that arch/sparc/kernel/irq.c has carnal knowledge
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* of interrupt usage and that sucks. Also without a flag like this
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* it may be possible for the free_irq routine to attempt to free
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* statically allocated data.. which is NOT GOOD.
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*
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*/
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#define SA_STATIC_ALLOC 0x80
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#endif
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#include <asm-generic/signal.h>
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#ifdef __KERNEL__
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struct __new_sigaction {
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__sighandler_t sa_handler;
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unsigned long sa_flags;
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void (*sa_restorer)(void); /* Not used by Linux/SPARC */
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__new_sigset_t sa_mask;
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};
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struct k_sigaction {
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struct __new_sigaction sa;
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void __user *ka_restorer;
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};
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struct __old_sigaction {
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__sighandler_t sa_handler;
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__old_sigset_t sa_mask;
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unsigned long sa_flags;
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void (*sa_restorer) (void); /* not used by Linux/SPARC */
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};
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typedef struct sigaltstack {
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void __user *ss_sp;
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int ss_flags;
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size_t ss_size;
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} stack_t;
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struct sparc_deliver_cookie {
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int restart_syscall;
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unsigned long orig_i0;
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};
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struct pt_regs;
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extern void ptrace_signal_deliver(struct pt_regs *regs, void *cookie);
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#endif /* !(__KERNEL__) */
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#endif /* !(__ASSEMBLY__) */
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#endif /* !(_ASMSPARC_SIGNAL_H) */
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