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1 #ifndef _BLACKFIN_SIGNAL_H
2 #define _BLACKFIN_SIGNAL_H
3 
4 #include <linux/types.h>
5 
6 /* Avoid too many header ordering problems.  */
7 struct siginfo;
8 
9 #ifdef __KERNEL__
10 /* Most things should be clean enough to redefine this at will, if care
11    is taken to make libc match.  */
12 
13 #define _NSIG		64
14 #define _NSIG_BPW	32
15 #define _NSIG_WORDS	(_NSIG / _NSIG_BPW)
16 
17 typedef unsigned long old_sigset_t;	/* at least 32 bits */
18 
19 typedef struct {
20 	unsigned long sig[_NSIG_WORDS];
21 } sigset_t;
22 
23 #else
24 /* Here we must cater to libcs that poke about in kernel headers.  */
25 
26 #define NSIG		32
27 typedef unsigned long sigset_t;
28 
29 #endif				/* __KERNEL__ */
30 
31 #define SIGHUP		 1
32 #define SIGINT		 2
33 #define SIGQUIT		 3
34 #define SIGILL		 4
35 #define SIGTRAP		 5
36 #define SIGABRT		 6
37 #define SIGIOT		 6
38 #define SIGBUS		 7
39 #define SIGFPE		 8
40 #define SIGKILL		 9
41 #define SIGUSR1		10
42 #define SIGSEGV		11
43 #define SIGUSR2		12
44 #define SIGPIPE		13
45 #define SIGALRM		14
46 #define SIGTERM		15
47 #define SIGSTKFLT	16
48 #define SIGCHLD		17
49 #define SIGCONT		18
50 #define SIGSTOP		19
51 #define SIGTSTP		20
52 #define SIGTTIN		21
53 #define SIGTTOU		22
54 #define SIGURG		23
55 #define SIGXCPU		24
56 #define SIGXFSZ		25
57 #define SIGVTALRM	26
58 #define SIGPROF		27
59 #define SIGWINCH	28
60 #define SIGIO		29
61 #define SIGPOLL		SIGIO
62 /*
63 #define SIGLOST		29
64 */
65 #define SIGPWR		30
66 #define SIGSYS		31
67 #define	SIGUNUSED	31
68 
69 /* These should not be considered constants from userland.  */
70 #define SIGRTMIN	32
71 #define SIGRTMAX	_NSIG
72 
73 /*
74  * SA_FLAGS values:
75  *
76  * SA_ONSTACK indicates that a registered stack_t will be used.
77  * SA_INTERRUPT is a no-op, but left due to historical reasons. Use the
78  * SA_RESTART flag to get restarting signals (which were the default long ago)
79  * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
80  * SA_RESETHAND clears the handler when the signal is delivered.
81  * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
82  * SA_NODEFER prevents the current signal from being masked in the handler.
83  *
84  * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
85  * Unix names RESETHAND and NODEFER respectively.
86  */
87 #define SA_NOCLDSTOP	0x00000001
88 #define SA_NOCLDWAIT	0x00000002	/* not supported yet */
89 #define SA_SIGINFO	0x00000004
90 #define SA_ONSTACK	0x08000000
91 #define SA_RESTART	0x10000000
92 #define SA_NODEFER	0x40000000
93 #define SA_RESETHAND	0x80000000
94 
95 #define SA_NOMASK	SA_NODEFER
96 #define SA_ONESHOT	SA_RESETHAND
97 
98 /*
99  * sigaltstack controls
100  */
101 #define SS_ONSTACK	1
102 #define SS_DISABLE	2
103 
104 #define MINSIGSTKSZ	2048
105 #define SIGSTKSZ	8192
106 
107 #include <asm-generic/signal.h>
108 
109 #ifdef __KERNEL__
110 struct old_sigaction {
111 	__sighandler_t sa_handler;
112 	old_sigset_t sa_mask;
113 	unsigned long sa_flags;
114 	void (*sa_restorer) (void);
115 };
116 
117 struct sigaction {
118 	__sighandler_t sa_handler;
119 	unsigned long sa_flags;
120 	void (*sa_restorer) (void);
121 	sigset_t sa_mask;	/* mask last for extensibility */
122 };
123 
124 struct k_sigaction {
125 	struct sigaction sa;
126 };
127 #else
128 /* Here we must cater to libcs that poke about in kernel headers.  */
129 
130 struct sigaction {
131 	union {
132 		__sighandler_t _sa_handler;
133 		void (*_sa_sigaction) (int, struct siginfo *, void *);
134 	} _u;
135 	sigset_t sa_mask;
136 	unsigned long sa_flags;
137 	void (*sa_restorer) (void);
138 };
139 
140 #define sa_handler	_u._sa_handler
141 #define sa_sigaction	_u._sa_sigaction
142 
143 #endif				/* __KERNEL__ */
144 
145 typedef struct sigaltstack {
146 	void __user *ss_sp;
147 	int ss_flags;
148 	size_t ss_size;
149 } stack_t;
150 
151 #ifdef __KERNEL__
152 
153 #include <asm/sigcontext.h>
154 #undef __HAVE_ARCH_SIG_BITOPS
155 
156 #define ptrace_signal_deliver(regs, cookie) do { } while (0)
157 
158 #endif				/* __KERNEL__ */
159 
160 #endif				/* _BLACKFIN_SIGNAL_H */
161