linux/arch/mips/include/asm/signal.h
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   1/*
   2 * This file is subject to the terms and conditions of the GNU General Public
   3 * License.  See the file "COPYING" in the main directory of this archive
   4 * for more details.
   5 *
   6 * Copyright (C) 1995, 96, 97, 98, 99, 2003 by Ralf Baechle
   7 * Copyright (C) 1999 Silicon Graphics, Inc.
   8 */
   9#ifndef _ASM_SIGNAL_H
  10#define _ASM_SIGNAL_H
  11
  12#include <linux/types.h>
  13
  14#define _NSIG           128
  15#define _NSIG_BPW       (sizeof(unsigned long) * 8)
  16#define _NSIG_WORDS     (_NSIG / _NSIG_BPW)
  17
  18typedef struct {
  19        unsigned long sig[_NSIG_WORDS];
  20} sigset_t;
  21
  22typedef unsigned long old_sigset_t;             /* at least 32 bits */
  23
  24#define SIGHUP           1      /* Hangup (POSIX).  */
  25#define SIGINT           2      /* Interrupt (ANSI).  */
  26#define SIGQUIT          3      /* Quit (POSIX).  */
  27#define SIGILL           4      /* Illegal instruction (ANSI).  */
  28#define SIGTRAP          5      /* Trace trap (POSIX).  */
  29#define SIGIOT           6      /* IOT trap (4.2 BSD).  */
  30#define SIGABRT          SIGIOT /* Abort (ANSI).  */
  31#define SIGEMT           7
  32#define SIGFPE           8      /* Floating-point exception (ANSI).  */
  33#define SIGKILL          9      /* Kill, unblockable (POSIX).  */
  34#define SIGBUS          10      /* BUS error (4.2 BSD).  */
  35#define SIGSEGV         11      /* Segmentation violation (ANSI).  */
  36#define SIGSYS          12
  37#define SIGPIPE         13      /* Broken pipe (POSIX).  */
  38#define SIGALRM         14      /* Alarm clock (POSIX).  */
  39#define SIGTERM         15      /* Termination (ANSI).  */
  40#define SIGUSR1         16      /* User-defined signal 1 (POSIX).  */
  41#define SIGUSR2         17      /* User-defined signal 2 (POSIX).  */
  42#define SIGCHLD         18      /* Child status has changed (POSIX).  */
  43#define SIGCLD          SIGCHLD /* Same as SIGCHLD (System V).  */
  44#define SIGPWR          19      /* Power failure restart (System V).  */
  45#define SIGWINCH        20      /* Window size change (4.3 BSD, Sun).  */
  46#define SIGURG          21      /* Urgent condition on socket (4.2 BSD).  */
  47#define SIGIO           22      /* I/O now possible (4.2 BSD).  */
  48#define SIGPOLL         SIGIO   /* Pollable event occurred (System V).  */
  49#define SIGSTOP         23      /* Stop, unblockable (POSIX).  */
  50#define SIGTSTP         24      /* Keyboard stop (POSIX).  */
  51#define SIGCONT         25      /* Continue (POSIX).  */
  52#define SIGTTIN         26      /* Background read from tty (POSIX).  */
  53#define SIGTTOU         27      /* Background write to tty (POSIX).  */
  54#define SIGVTALRM       28      /* Virtual alarm clock (4.2 BSD).  */
  55#define SIGPROF         29      /* Profiling alarm clock (4.2 BSD).  */
  56#define SIGXCPU         30      /* CPU limit exceeded (4.2 BSD).  */
  57#define SIGXFSZ         31      /* File size limit exceeded (4.2 BSD).  */
  58
  59/* These should not be considered constants from userland.  */
  60#define SIGRTMIN        32
  61#define SIGRTMAX        _NSIG
  62
  63/*
  64 * SA_FLAGS values:
  65 *
  66 * SA_ONSTACK indicates that a registered stack_t will be used.
  67 * SA_RESTART flag to get restarting signals (which were the default long ago)
  68 * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
  69 * SA_RESETHAND clears the handler when the signal is delivered.
  70 * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
  71 * SA_NODEFER prevents the current signal from being masked in the handler.
  72 *
  73 * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
  74 * Unix names RESETHAND and NODEFER respectively.
  75 */
  76#define SA_ONSTACK      0x08000000
  77#define SA_RESETHAND    0x80000000
  78#define SA_RESTART      0x10000000
  79#define SA_SIGINFO      0x00000008
  80#define SA_NODEFER      0x40000000
  81#define SA_NOCLDWAIT    0x00010000
  82#define SA_NOCLDSTOP    0x00000001
  83
  84#define SA_NOMASK       SA_NODEFER
  85#define SA_ONESHOT      SA_RESETHAND
  86
  87#define SA_RESTORER     0x04000000      /* Only for o32 */
  88
  89/*
  90 * sigaltstack controls
  91 */
  92#define SS_ONSTACK     1
  93#define SS_DISABLE     2
  94
  95#define MINSIGSTKSZ    2048
  96#define SIGSTKSZ       8192
  97
  98#ifdef __KERNEL__
  99
 100#ifdef CONFIG_TRAD_SIGNALS
 101#define sig_uses_siginfo(ka)    ((ka)->sa.sa_flags & SA_SIGINFO)
 102#else
 103#define sig_uses_siginfo(ka)    (1)
 104#endif
 105
 106#endif /* __KERNEL__ */
 107
 108#define SIG_BLOCK       1       /* for blocking signals */
 109#define SIG_UNBLOCK     2       /* for unblocking signals */
 110#define SIG_SETMASK     3       /* for setting the signal mask */
 111
 112#include <asm-generic/signal.h>
 113
 114struct sigaction {
 115        unsigned int    sa_flags;
 116        __sighandler_t  sa_handler;
 117        sigset_t        sa_mask;
 118};
 119
 120struct k_sigaction {
 121        struct sigaction sa;
 122};
 123
 124/* IRIX compatible stack_t  */
 125typedef struct sigaltstack {
 126        void __user *ss_sp;
 127        size_t ss_size;
 128        int ss_flags;
 129} stack_t;
 130
 131#ifdef __KERNEL__
 132#include <asm/sigcontext.h>
 133#include <asm/siginfo.h>
 134
 135#define ptrace_signal_deliver(regs, cookie) do { } while (0)
 136
 137#endif /* __KERNEL__ */
 138
 139#endif /* _ASM_SIGNAL_H */
 140
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