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Linux/arch/m32r/include/asm/signal.h

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  1 #ifndef _ASM_M32R_SIGNAL_H
  2 #define _ASM_M32R_SIGNAL_H
  3 
  4 #include <linux/types.h>
  5 #include <linux/time.h>
  6 #include <linux/compiler.h>
  7 
  8 /* Avoid too many header ordering problems.  */
  9 struct siginfo;
 10 
 11 #ifdef __KERNEL__
 12 /* Most things should be clean enough to redefine this at will, if care
 13    is taken to make libc match.  */
 14 
 15 #define _NSIG           64
 16 #define _NSIG_BPW       32
 17 #define _NSIG_WORDS     (_NSIG / _NSIG_BPW)
 18 
 19 typedef unsigned long old_sigset_t;             /* at least 32 bits */
 20 
 21 typedef struct {
 22         unsigned long sig[_NSIG_WORDS];
 23 } sigset_t;
 24 
 25 #else
 26 /* Here we must cater to libcs that poke about in kernel headers.  */
 27 
 28 #define NSIG            32
 29 typedef unsigned long sigset_t;
 30 
 31 #endif /* __KERNEL__ */
 32 
 33 #define SIGHUP           1
 34 #define SIGINT           2
 35 #define SIGQUIT          3
 36 #define SIGILL           4
 37 #define SIGTRAP          5
 38 #define SIGABRT          6
 39 #define SIGIOT           6
 40 #define SIGBUS           7
 41 #define SIGFPE           8
 42 #define SIGKILL          9
 43 #define SIGUSR1         10
 44 #define SIGSEGV         11
 45 #define SIGUSR2         12
 46 #define SIGPIPE         13
 47 #define SIGALRM         14
 48 #define SIGTERM         15
 49 #define SIGSTKFLT       16
 50 #define SIGCHLD         17
 51 #define SIGCONT         18
 52 #define SIGSTOP         19
 53 #define SIGTSTP         20
 54 #define SIGTTIN         21
 55 #define SIGTTOU         22
 56 #define SIGURG          23
 57 #define SIGXCPU         24
 58 #define SIGXFSZ         25
 59 #define SIGVTALRM       26
 60 #define SIGPROF         27
 61 #define SIGWINCH        28
 62 #define SIGIO           29
 63 #define SIGPOLL         SIGIO
 64 /*
 65 #define SIGLOST         29
 66 */
 67 #define SIGPWR          30
 68 #define SIGSYS          31
 69 #define SIGUNUSED       31
 70 
 71 /* These should not be considered constants from userland.  */
 72 #define SIGRTMIN        32
 73 #define SIGRTMAX        _NSIG
 74 
 75 /*
 76  * SA_FLAGS values:
 77  *
 78  * SA_ONSTACK indicates that a registered stack_t will be used.
 79  * SA_RESTART flag to get restarting signals (which were the default long ago)
 80  * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
 81  * SA_RESETHAND clears the handler when the signal is delivered.
 82  * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
 83  * SA_NODEFER prevents the current signal from being masked in the handler.
 84  *
 85  * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
 86  * Unix names RESETHAND and NODEFER respectively.
 87  */
 88 #define SA_NOCLDSTOP    0x00000001u
 89 #define SA_NOCLDWAIT    0x00000002u
 90 #define SA_SIGINFO      0x00000004u
 91 #define SA_ONSTACK      0x08000000u
 92 #define SA_RESTART      0x10000000u
 93 #define SA_NODEFER      0x40000000u
 94 #define SA_RESETHAND    0x80000000u
 95 
 96 #define SA_NOMASK       SA_NODEFER
 97 #define SA_ONESHOT      SA_RESETHAND
 98 
 99 #define SA_RESTORER     0x04000000
100 
101 /*
102  * sigaltstack controls
103  */
104 #define SS_ONSTACK      1
105 #define SS_DISABLE      2
106 
107 #define MINSIGSTKSZ     2048
108 #define SIGSTKSZ        8192
109 
110 #include <asm-generic/signal-defs.h>
111 
112 #ifdef __KERNEL__
113 struct old_sigaction {
114         __sighandler_t sa_handler;
115         old_sigset_t sa_mask;
116         unsigned long sa_flags;
117         __sigrestore_t sa_restorer;
118 };
119 
120 struct sigaction {
121         __sighandler_t sa_handler;
122         unsigned long sa_flags;
123         __sigrestore_t sa_restorer;
124         sigset_t sa_mask;               /* mask last for extensibility */
125 };
126 #define __ARCH_HAS_SA_RESTORER
127 
128 struct k_sigaction {
129         struct sigaction sa;
130 };
131 #else
132 /* Here we must cater to libcs that poke about in kernel headers.  */
133 
134 struct sigaction {
135         union {
136           __sighandler_t _sa_handler;
137           void (*_sa_sigaction)(int, struct siginfo *, void *);
138         } _u;
139         sigset_t sa_mask;
140         unsigned long sa_flags;
141         void (*sa_restorer)(void);
142 };
143 
144 #define sa_handler      _u._sa_handler
145 #define sa_sigaction    _u._sa_sigaction
146 
147 #endif /* __KERNEL__ */
148 
149 typedef struct sigaltstack {
150         void __user *ss_sp;
151         int ss_flags;
152         size_t ss_size;
153 } stack_t;
154 
155 #ifdef __KERNEL__
156 #include <asm/sigcontext.h>
157 
158 #undef __HAVE_ARCH_SIG_BITOPS
159 
160 struct pt_regs;
161 extern int do_signal(struct pt_regs *regs, sigset_t *oldset);
162 
163 #define ptrace_signal_deliver(regs, cookie)     do { } while (0)
164 
165 #endif /* __KERNEL__ */
166 
167 #endif  /* _ASM_M32R_SIGNAL_H */
168 

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