1#ifndef _ASMAXP_SIGNAL_H
2#define _ASMAXP_SIGNAL_H
3
4#include <linux/types.h>
5
6/* Avoid too many header ordering problems.  */
7struct 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
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
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.h>
115
116#ifdef __KERNEL__
117struct osf_sigaction {
118	__sighandler_t	sa_handler;
119	old_sigset_t	sa_mask;
120	int		sa_flags;
121};
122
123struct sigaction {
124	__sighandler_t	sa_handler;
125	unsigned long	sa_flags;
126	sigset_t	sa_mask;	/* mask last for extensibility */
127};
128
129struct 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
136struct 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
150typedef 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
160struct 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