1 #ifndef _ASMAXP_SIGNAL_H
2 #define _ASMAXP_SIGNAL_H
3
4 #include <linux/types.h>
5
6 /* Avoid too many header ordering problems. */
7 struct siginfo;
8
9 #ifdef __KERNEL__
10 /* Digital Unix defines 64 signals. Most things should be clean enough
11 to redefine this at will, if care is taken to make libc match. */
12
13 #define _NSIG 64
14 #define _NSIG_BPW 64
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
32 /*
33 * Linux/AXP has different signal numbers that Linux/i386: I'm trying
34 * to make it OSF/1 binary compatible, at least for normal binaries.
35 */
36 #define SIGHUP 1
37 #define SIGINT 2
38 #define SIGQUIT 3
39 #define SIGILL 4
40 #define SIGTRAP 5
41 #define SIGABRT 6
42 #define SIGEMT 7
43 #define SIGFPE 8
44 #define SIGKILL 9
45 #define SIGBUS 10
46 #define SIGSEGV 11
47 #define SIGSYS 12
48 #define SIGPIPE 13
49 #define SIGALRM 14
50 #define SIGTERM 15
51 #define SIGURG 16
52 #define SIGSTOP 17
53 #define SIGTSTP 18
54 #define SIGCONT 19
55 #define SIGCHLD 20
56 #define SIGTTIN 21
57 #define SIGTTOU 22
58 #define SIGIO 23
59 #define SIGXCPU 24
60 #define SIGXFSZ 25
61 #define SIGVTALRM 26
62 #define SIGPROF 27
63 #define SIGWINCH 28
64 #define SIGINFO 29
65 #define SIGUSR1 30
66 #define SIGUSR2 31
67
68 #define SIGPOLL SIGIO
69 #define SIGPWR SIGINFO
70 #define SIGIOT SIGABRT
71
72 /* These should not be considered constants from userland. */
73 #define SIGRTMIN 32
74 #define SIGRTMAX _NSIG
75
76 /*
77 * SA_FLAGS values:
78 *
79 * SA_ONSTACK indicates that a registered stack_t will be used.
80 * SA_RESTART flag to get restarting signals (which were the default long ago)
81 * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
82 * SA_RESETHAND clears the handler when the signal is delivered.
83 * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
84 * SA_NODEFER prevents the current signal from being masked in the handler.
85 *
86 * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
87 * Unix names RESETHAND and NODEFER respectively.
88 */
89
90 #define SA_ONSTACK 0x00000001
91 #define SA_RESTART 0x00000002
92 #define SA_NOCLDSTOP 0x00000004
93 #define SA_NODEFER 0x00000008
94 #define SA_RESETHAND 0x00000010
95 #define SA_NOCLDWAIT 0x00000020
96 #define SA_SIGINFO 0x00000040
97
98 #define SA_ONESHOT SA_RESETHAND
99 #define SA_NOMASK SA_NODEFER
100
101 /*
102 * sigaltstack controls
103 */
104 #define SS_ONSTACK 1
105 #define SS_DISABLE 2
106
107 #define MINSIGSTKSZ 4096
108 #define SIGSTKSZ 16384
109
110 #define SIG_BLOCK 1 /* for blocking signals */
111 #define SIG_UNBLOCK 2 /* for unblocking signals */
112 #define SIG_SETMASK 3 /* for setting the signal mask */
113
114 #include <asm-generic/signal-defs.h>
115
116 #ifdef __KERNEL__
117 struct osf_sigaction {
118 __sighandler_t sa_handler;
119 old_sigset_t sa_mask;
120 int sa_flags;
121 };
122
123 struct sigaction {
124 __sighandler_t sa_handler;
125 unsigned long sa_flags;
126 sigset_t sa_mask; /* mask last for extensibility */
127 };
128
129 struct k_sigaction {
130 struct sigaction sa;
131 __sigrestore_t ka_restorer;
132 };
133 #else
134 /* Here we must cater to libcs that poke about in kernel headers. */
135
136 struct sigaction {
137 union {
138 __sighandler_t _sa_handler;
139 void (*_sa_sigaction)(int, struct siginfo *, void *);
140 } _u;
141 sigset_t sa_mask;
142 int sa_flags;
143 };
144
145 #define sa_handler _u._sa_handler
146 #define sa_sigaction _u._sa_sigaction
147
148 #endif /* __KERNEL__ */
149
150 typedef struct sigaltstack {
151 void __user *ss_sp;
152 int ss_flags;
153 size_t ss_size;
154 } stack_t;
155
156 /* sigstack(2) is deprecated, and will be withdrawn in a future version
157 of the X/Open CAE Specification. Use sigaltstack instead. It is only
158 implemented here for OSF/1 compatibility. */
159
160 struct sigstack {
161 void __user *ss_sp;
162 int ss_onstack;
163 };
164
165 #ifdef __KERNEL__
166 #include <asm/sigcontext.h>
167
168 #define ptrace_signal_deliver(regs, cookie) do { } while (0)
169
170 #endif
171
172 #endif
173
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