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Linux/arch/mn10300/include/asm/signal.h

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  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-defs.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 #define __ARCH_HAS_SA_RESTORER
135 
136 struct k_sigaction {
137         struct sigaction sa;
138 };
139 #else
140 /* Here we must cater to libcs that poke about in kernel headers.  */
141 
142 struct sigaction {
143         union {
144           __sighandler_t _sa_handler;
145           void (*_sa_sigaction)(int, struct siginfo *, void *);
146         } _u;
147         sigset_t sa_mask;
148         unsigned long sa_flags;
149         void (*sa_restorer)(void);
150 };
151 
152 #define sa_handler      _u._sa_handler
153 #define sa_sigaction    _u._sa_sigaction
154 
155 #endif /* __KERNEL__ */
156 
157 typedef struct sigaltstack {
158         void __user     *ss_sp;
159         int             ss_flags;
160         size_t          ss_size;
161 } stack_t;
162 
163 #ifdef __KERNEL__
164 #include <asm/sigcontext.h>
165 
166 
167 struct pt_regs;
168 #define ptrace_signal_deliver(regs, cookie) do { } while (0)
169 
170 #endif /* __KERNEL__ */
171 
172 #endif /* _ASM_SIGNAL_H */
173 

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