linux/arch/avr32/include/asm/signal.h
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   1/*
   2 * Copyright (C) 2004-2006 Atmel Corporation
   3 *
   4 * This program is free software; you can redistribute it and/or modify
   5 * it under the terms of the GNU General Public License version 2 as
   6 * published by the Free Software Foundation.
   7 */
   8#ifndef __ASM_AVR32_SIGNAL_H
   9#define __ASM_AVR32_SIGNAL_H
  10
  11#include <linux/types.h>
  12
  13/* Avoid too many header ordering problems.  */
  14struct siginfo;
  15
  16#ifdef __KERNEL__
  17/* Most things should be clean enough to redefine this at will, if care
  18   is taken to make libc match.  */
  19
  20#define _NSIG           64
  21#define _NSIG_BPW       32
  22#define _NSIG_WORDS     (_NSIG / _NSIG_BPW)
  23
  24typedef unsigned long old_sigset_t;             /* at least 32 bits */
  25
  26typedef struct {
  27        unsigned long sig[_NSIG_WORDS];
  28} sigset_t;
  29
  30#else
  31/* Here we must cater to libcs that poke about in kernel headers.  */
  32
  33#define NSIG            32
  34typedef unsigned long sigset_t;
  35
  36#endif /* __KERNEL__ */
  37
  38#define SIGHUP           1
  39#define SIGINT           2
  40#define SIGQUIT          3
  41#define SIGILL           4
  42#define SIGTRAP          5
  43#define SIGABRT          6
  44#define SIGIOT           6
  45#define SIGBUS           7
  46#define SIGFPE           8
  47#define SIGKILL          9
  48#define SIGUSR1         10
  49#define SIGSEGV         11
  50#define SIGUSR2         12
  51#define SIGPIPE         13
  52#define SIGALRM         14
  53#define SIGTERM         15
  54#define SIGSTKFLT       16
  55#define SIGCHLD         17
  56#define SIGCONT         18
  57#define SIGSTOP         19
  58#define SIGTSTP         20
  59#define SIGTTIN         21
  60#define SIGTTOU         22
  61#define SIGURG          23
  62#define SIGXCPU         24
  63#define SIGXFSZ         25
  64#define SIGVTALRM       26
  65#define SIGPROF         27
  66#define SIGWINCH        28
  67#define SIGIO           29
  68#define SIGPOLL         SIGIO
  69/*
  70#define SIGLOST         29
  71*/
  72#define SIGPWR          30
  73#define SIGSYS          31
  74#define SIGUNUSED       31
  75
  76/* These should not be considered constants from userland.  */
  77#define SIGRTMIN        32
  78#define SIGRTMAX        (_NSIG-1)
  79
  80/*
  81 * SA_FLAGS values:
  82 *
  83 * SA_NOCLDSTOP         flag to turn off SIGCHLD when children stop.
  84 * SA_NOCLDWAIT         flag on SIGCHLD to inhibit zombies.
  85 * SA_SIGINFO           deliver the signal with SIGINFO structs
  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_NODEFER           prevents the current signal from being masked in the handler.
  89 * SA_RESETHAND         clears the handler when the signal is delivered.
  90 *
  91 * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
  92 * Unix names RESETHAND and NODEFER respectively.
  93 */
  94#define SA_NOCLDSTOP    0x00000001
  95#define SA_NOCLDWAIT    0x00000002
  96#define SA_SIGINFO      0x00000004
  97#define SA_RESTORER     0x04000000
  98#define SA_ONSTACK      0x08000000
  99#define SA_RESTART      0x10000000
 100#define SA_NODEFER      0x40000000
 101#define SA_RESETHAND    0x80000000
 102
 103#define SA_NOMASK       SA_NODEFER
 104#define SA_ONESHOT      SA_RESETHAND
 105
 106/*
 107 * sigaltstack controls
 108 */
 109#define SS_ONSTACK      1
 110#define SS_DISABLE      2
 111
 112#define MINSIGSTKSZ     2048
 113#define SIGSTKSZ        8192
 114
 115#include <asm-generic/signal.h>
 116
 117#ifdef __KERNEL__
 118struct old_sigaction {
 119        __sighandler_t sa_handler;
 120        old_sigset_t sa_mask;
 121        unsigned long sa_flags;
 122        __sigrestore_t sa_restorer;
 123};
 124
 125struct sigaction {
 126        __sighandler_t sa_handler;
 127        unsigned long sa_flags;
 128        __sigrestore_t sa_restorer;
 129        sigset_t sa_mask;               /* mask last for extensibility */
 130};
 131
 132struct k_sigaction {
 133        struct sigaction sa;
 134};
 135#else
 136/* Here we must cater to libcs that poke about in kernel headers.  */
 137
 138struct sigaction {
 139        union {
 140                __sighandler_t _sa_handler;
 141                void (*_sa_sigaction)(int, struct siginfo *, void *);
 142        } _u;
 143        sigset_t sa_mask;
 144        unsigned long sa_flags;
 145        void (*sa_restorer)(void);
 146};
 147
 148#define sa_handler      _u._sa_handler
 149#define sa_sigaction    _u._sa_sigaction
 150
 151#endif /* __KERNEL__ */
 152
 153typedef struct sigaltstack {
 154        void __user *ss_sp;
 155        int ss_flags;
 156        size_t ss_size;
 157} stack_t;
 158
 159#ifdef __KERNEL__
 160
 161#include <asm/sigcontext.h>
 162#undef __HAVE_ARCH_SIG_BITOPS
 163
 164#define ptrace_signal_deliver(regs, cookie) do { } while (0)
 165
 166#endif /* __KERNEL__ */
 167
 168#endif
 169