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Bryan Wu1394f032007-05-06 14:50:22 -07001#ifndef _BLACKFIN_SIGNAL_H
2#define _BLACKFIN_SIGNAL_H
3
4#include <linux/types.h>
5
6/* Avoid too many header ordering problems. */
7struct 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
17typedef unsigned long old_sigset_t; /* at least 32 bits */
18
19typedef 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
27typedef 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__
110struct 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
117struct 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
124struct k_sigaction {
125 struct sigaction sa;
126};
127#else
128/* Here we must cater to libcs that poke about in kernel headers. */
129
130struct 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
145typedef struct sigaltstack {
146 void *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 */