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1da177e4 LT |
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. | |
1da177e4 LT |
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 | |
1da177e4 LT |
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 | ||
1da177e4 LT |
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 | ||
b1ecb4c3 | 114 | #include <asm-generic/signal.h> |
1da177e4 LT |
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 |