arch/avr32/include/asm/signal.h

   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.  */
  14 struct 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
  24 typedef unsigned long old_sigset_t;             /* at least 32 bits */
  25
  26 typedef 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
  34 typedef 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-defs.h>
 116
 117 #ifdef __KERNEL__
 118 struct 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
 125 struct 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
 132 struct k_sigaction {
 133         struct sigaction sa;
 134 };
 135 #else
 136 /* Here we must cater to libcs that poke about in kernel headers.  */
 137
 138 struct 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
 153 typedef 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