include/asm-mn10300/signal.h

   1 /* MN10300 Signal definitions
   2  *
   3  * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
   4  * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public Licence
   8  * as published by the Free Software Foundation; either version
   9  * 2 of the Licence, or (at your option) any later version.
  10  */
  11 #ifndef _ASM_SIGNAL_H
  12 #define _ASM_SIGNAL_H
  13
  14 #include <linux/types.h>
  15
  16 /* Avoid too many header ordering problems.  */
  17 struct siginfo;
  18
  19 #ifdef __KERNEL__
  20 /* Most things should be clean enough to redefine this at will, if care
  21    is taken to make libc match.  */
  22
  23 #define _NSIG           64
  24 #define _NSIG_BPW       32
  25 #define _NSIG_WORDS     (_NSIG / _NSIG_BPW)
  26
  27 typedef unsigned long old_sigset_t;             /* at least 32 bits */
  28
  29 typedef struct {
  30         unsigned long   sig[_NSIG_WORDS];
  31 } sigset_t;
  32
  33 #else
  34 /* Here we must cater to libcs that poke about in kernel headers.  */
  35
  36 #define NSIG            32
  37 typedef unsigned long sigset_t;
  38
  39 #endif /* __KERNEL__ */
  40
  41 #define SIGHUP           1
  42 #define SIGINT           2
  43 #define SIGQUIT          3
  44 #define SIGILL           4
  45 #define SIGTRAP          5
  46 #define SIGABRT          6
  47 #define SIGIOT           6
  48 #define SIGBUS           7
  49 #define SIGFPE           8
  50 #define SIGKILL          9
  51 #define SIGUSR1         10
  52 #define SIGSEGV         11
  53 #define SIGUSR2         12
  54 #define SIGPIPE         13
  55 #define SIGALRM         14
  56 #define SIGTERM         15
  57 #define SIGSTKFLT       16
  58 #define SIGCHLD         17
  59 #define SIGCONT         18
  60 #define SIGSTOP         19
  61 #define SIGTSTP         20
  62 #define SIGTTIN         21
  63 #define SIGTTOU         22
  64 #define SIGURG          23
  65 #define SIGXCPU         24
  66 #define SIGXFSZ         25
  67 #define SIGVTALRM       26
  68 #define SIGPROF         27
  69 #define SIGWINCH        28
  70 #define SIGIO           29
  71 #define SIGPOLL         SIGIO
  72 /*
  73 #define SIGLOST         29
  74 */
  75 #define SIGPWR          30
  76 #define SIGSYS          31
  77 #define SIGUNUSED       31
  78
  79 /* These should not be considered constants from userland.  */
  80 #define SIGRTMIN        32
  81 #define SIGRTMAX        (_NSIG-1)
  82
  83 /*
  84  * SA_FLAGS values:
  85  *
  86  * SA_ONSTACK indicates that a registered stack_t will be used.
  87  * SA_RESTART flag to get restarting signals (which were the default long ago)
  88  * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
  89  * SA_RESETHAND clears the handler when the signal is delivered.
  90  * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
  91  * SA_NODEFER prevents the current signal from being masked in the handler.
  92  *
  93  * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
  94  * Unix names RESETHAND and NODEFER respectively.
  95  */
  96 #define SA_NOCLDSTOP    0x00000001U
  97 #define SA_NOCLDWAIT    0x00000002U
  98 #define SA_SIGINFO      0x00000004U
  99 #define SA_ONSTACK      0x08000000U
 100 #define SA_RESTART      0x10000000U
 101 #define SA_NODEFER      0x40000000U
 102 #define SA_RESETHAND    0x80000000U
 103
 104 #define SA_NOMASK       SA_NODEFER
 105 #define SA_ONESHOT      SA_RESETHAND
 106
 107 #define SA_RESTORER     0x04000000
 108
 109 /*
 110  * sigaltstack controls
 111  */
 112 #define SS_ONSTACK      1
 113 #define SS_DISABLE      2
 114
 115 #define MINSIGSTKSZ     2048
 116 #define SIGSTKSZ        8192
 117
 118 #include <asm-generic/signal.h>
 119
 120 #ifdef __KERNEL__
 121 struct old_sigaction {
 122         __sighandler_t sa_handler;
 123         old_sigset_t sa_mask;
 124         unsigned long sa_flags;
 125         __sigrestore_t sa_restorer;
 126 };
 127
 128 struct sigaction {
 129         __sighandler_t sa_handler;
 130         unsigned long sa_flags;
 131         __sigrestore_t sa_restorer;
 132         sigset_t sa_mask;               /* mask last for extensibility */
 133 };
 134
 135 struct k_sigaction {
 136         struct sigaction sa;
 137 };
 138 #else
 139 /* Here we must cater to libcs that poke about in kernel headers.  */
 140
 141 struct sigaction {
 142         union {
 143           __sighandler_t _sa_handler;
 144           void (*_sa_sigaction)(int, struct siginfo *, void *);
 145         } _u;
 146         sigset_t sa_mask;
 147         unsigned long sa_flags;
 148         void (*sa_restorer)(void);
 149 };
 150
 151 #define sa_handler      _u._sa_handler
 152 #define sa_sigaction    _u._sa_sigaction
 153
 154 #endif /* __KERNEL__ */
 155
 156 typedef struct sigaltstack {
 157         void __user     *ss_sp;
 158         int             ss_flags;
 159         size_t          ss_size;
 160 } stack_t;
 161
 162 #ifdef __KERNEL__
 163 #include <asm/sigcontext.h>
 164
 165
 166 struct pt_regs;
 167 #define ptrace_signal_deliver(regs, cookie) do { } while (0)
 168
 169 #endif /* __KERNEL__ */
 170
 171 #endif /* _ASM_SIGNAL_H */