1 #ifndef _ASMARM_SIGNAL_H
2 #define _ASMARM_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 #define SIGSWI 32
74
75 /*
76 * SA_FLAGS values:
77 *
78 * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
79 * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
80 * SA_SIGINFO deliver the signal with SIGINFO structs
81 * SA_THIRTYTWO delivers the signal in 32-bit mode, even if the task
82 * is running in 26-bit.
83 * SA_ONSTACK allows alternate signal stacks (see sigaltstack(2)).
84 * SA_RESTART flag to get restarting signals (which were the default long ago)
85 * SA_NODEFER prevents the current signal from being masked in the handler.
86 * SA_RESETHAND clears the handler when the signal is delivered.
87 *
88 * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
89 * Unix names RESETHAND and NODEFER respectively.
90 */
91 #define SA_NOCLDSTOP 0x00000001
92 #define SA_NOCLDWAIT 0x00000002
93 #define SA_SIGINFO 0x00000004
94 #define SA_THIRTYTWO 0x02000000
95 #define SA_RESTORER 0x04000000
96 #define SA_ONSTACK 0x08000000
97 #define SA_RESTART 0x10000000
98 #define SA_NODEFER 0x40000000
99 #define SA_RESETHAND 0x80000000
100
101 #define SA_NOMASK SA_NODEFER
102 #define SA_ONESHOT SA_RESETHAND
103
104
105 /*
106 * sigaltstack controls
107 */
108 #define SS_ONSTACK 1
109 #define SS_DISABLE 2
110
111 #define MINSIGSTKSZ 2048
112 #define SIGSTKSZ 8192
113
114 #include <asm-generic/signal.h>
115
116 #ifdef __KERNEL__
117 struct old_sigaction {
118 __sighandler_t sa_handler;
119 old_sigset_t sa_mask;
120 unsigned long sa_flags;
121 __sigrestore_t sa_restorer;
122 };
123
124 struct sigaction {
125 __sighandler_t sa_handler;
126 unsigned long sa_flags;
127 __sigrestore_t sa_restorer;
128 sigset_t sa_mask; /* mask last for extensibility */
129 };
130
131 struct k_sigaction {
132 struct sigaction sa;
133 };
134
135 #else
136 /* Here we must cater to libcs that poke about in kernel headers. */
137
138 struct sigaction {
139 union {
140 __sighandler_t _sa_handler;
141 void (*_sa_sigaction)(int, struct siginfo *, void *);
142 } _u;
143 sigset_t sa_mask;
144 unsigned long sa_flags;
145 void (*sa_restorer)(void);
146 };
147
148 #define sa_handler _u._sa_handler
149 #define sa_sigaction _u._sa_sigaction
150
151 #endif /* __KERNEL__ */
152
153 typedef struct sigaltstack {
154 void __user *ss_sp;
155 int ss_flags;
156 size_t ss_size;
157 } stack_t;
158
159 #ifdef __KERNEL__
160 #include <asm/sigcontext.h>
161 #define ptrace_signal_deliver(regs, cookie) do { } while (0)
162 #endif
163
164 #endif
165
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