Linux 2.6.12-rc6
[cris-mirror.git] / include / asm-cris / signal.h
blobdfe039593a78d067e9478826a2fac0876b4d0d27
1 #ifndef _ASM_CRIS_SIGNAL_H
2 #define _ASM_CRIS_SIGNAL_H
4 #include <linux/types.h>
6 /* Avoid too many header ordering problems. */
7 struct siginfo;
9 #ifdef __KERNEL__
10 /* Most things should be clean enough to redefine this at will, if care
11 is taken to make libc match. */
13 #define _NSIG 64
14 #define _NSIG_BPW 32
15 #define _NSIG_WORDS (_NSIG / _NSIG_BPW)
17 typedef unsigned long old_sigset_t; /* at least 32 bits */
19 typedef struct {
20 unsigned long sig[_NSIG_WORDS];
21 } sigset_t;
23 #else
24 /* Here we must cater to libcs that poke about in kernel headers. */
26 #define NSIG 32
27 typedef unsigned long sigset_t;
29 #endif /* __KERNEL__ */
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
63 #define SIGLOST 29
65 #define SIGPWR 30
66 #define SIGSYS 31
67 #define SIGUNUSED 31
69 /* These should not be considered constants from userland. */
70 #define SIGRTMIN 32
71 #define SIGRTMAX _NSIG
74 * SA_FLAGS values:
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.
84 * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
85 * Unix names RESETHAND and NODEFER respectively.
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
96 #define SA_NOMASK SA_NODEFER
97 #define SA_ONESHOT SA_RESETHAND
98 #define SA_INTERRUPT 0x20000000 /* dummy -- ignored */
100 #define SA_RESTORER 0x04000000
103 * sigaltstack controls
105 #define SS_ONSTACK 1
106 #define SS_DISABLE 2
108 #define MINSIGSTKSZ 2048
109 #define SIGSTKSZ 8192
111 #include <asm-generic/signal.h>
113 #ifdef __KERNEL__
114 struct old_sigaction {
115 __sighandler_t sa_handler;
116 old_sigset_t sa_mask;
117 unsigned long sa_flags;
118 void (*sa_restorer)(void);
121 struct sigaction {
122 __sighandler_t sa_handler;
123 unsigned long sa_flags;
124 void (*sa_restorer)(void);
125 sigset_t sa_mask; /* mask last for extensibility */
128 struct k_sigaction {
129 struct sigaction sa;
131 #else
132 /* Here we must cater to libcs that poke about in kernel headers. */
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);
144 #define sa_handler _u._sa_handler
145 #define sa_sigaction _u._sa_sigaction
147 #endif /* __KERNEL__ */
149 typedef struct sigaltstack {
150 void *ss_sp;
151 int ss_flags;
152 size_t ss_size;
153 } stack_t;
155 #ifdef __KERNEL__
156 #include <asm/sigcontext.h>
158 /* here we could define asm-optimized sigaddset, sigdelset etc. operations.
159 * if we don't, generic ones are used from linux/signal.h
161 #define ptrace_signal_deliver(regs, cookie) do { } while (0)
163 #endif /* __KERNEL__ */
165 #endif