1#ifndef _ASM_IA64_SIGNAL_H
2#define _ASM_IA64_SIGNAL_H
3
4/*
5 * Copyright (C) 1998-2001 Hewlett-Packard Co
6 *	David Mosberger-Tang <davidm@hpl.hp.com>
7 *
8 * Unfortunately, this file is being included by bits/signal.h in
9 * glibc-2.x.  Hence the #ifdef __KERNEL__ ugliness.
10 */
11
12#define SIGHUP		 1
13#define SIGINT		 2
14#define SIGQUIT		 3
15#define SIGILL		 4
16#define SIGTRAP		 5
17#define SIGABRT		 6
18#define SIGIOT		 6
19#define SIGBUS		 7
20#define SIGFPE		 8
21#define SIGKILL		 9
22#define SIGUSR1		10
23#define SIGSEGV		11
24#define SIGUSR2		12
25#define SIGPIPE		13
26#define SIGALRM		14
27#define SIGTERM		15
28#define SIGSTKFLT	16
29#define SIGCHLD		17
30#define SIGCONT		18
31#define SIGSTOP		19
32#define SIGTSTP		20
33#define SIGTTIN		21
34#define SIGTTOU		22
35#define SIGURG		23
36#define SIGXCPU		24
37#define SIGXFSZ		25
38#define SIGVTALRM	26
39#define SIGPROF		27
40#define SIGWINCH	28
41#define SIGIO		29
42#define SIGPOLL		SIGIO
43/*
44#define SIGLOST		29
45*/
46#define SIGPWR		30
47#define SIGSYS		31
48/* signal 31 is no longer "unused", but the SIGUNUSED macro remains for backwards compatibility */
49#define	SIGUNUSED	31
50
51/* These should not be considered constants from userland.  */
52#define SIGRTMIN	32
53#define SIGRTMAX	(_NSIG-1)
54
55/*
56 * SA_FLAGS values:
57 *
58 * SA_ONSTACK indicates that a registered stack_t will be used.
59 * SA_INTERRUPT is a no-op, but left due to historical reasons.
60 * SA_RESTART flag to get restarting signals (which were the default long ago)
61 * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
62 * SA_RESETHAND clears the handler when the signal is delivered.
63 * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
64 * SA_NODEFER prevents the current signal from being masked in the handler.
65 *
66 * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
67 * Unix names RESETHAND and NODEFER respectively.
68 */
69#define SA_NOCLDSTOP	0x00000001
70#define SA_NOCLDWAIT	0x00000002 /* not supported yet */
71#define SA_SIGINFO	0x00000004
72#define SA_ONSTACK	0x08000000
73#define SA_RESTART	0x10000000
74#define SA_NODEFER	0x40000000
75#define SA_RESETHAND	0x80000000
76
77#define SA_NOMASK	SA_NODEFER
78#define SA_ONESHOT	SA_RESETHAND
79#define SA_INTERRUPT	0x20000000 /* dummy -- ignored */
80
81#define SA_RESTORER	0x04000000
82
83/*
84 * sigaltstack controls
85 */
86#define SS_ONSTACK	1
87#define SS_DISABLE	2
88
89/*
90 * The minimum stack size needs to be fairly large because we want to
91 * be sure that an app compiled for today's CPUs will continue to run
92 * on all future CPU models.  The CPU model matters because the signal
93 * frame needs to have space for the complete machine state, including
94 * all physical stacked registers.  The number of physical stacked
95 * registers is CPU model dependent, but given that the width of
96 * ar.rsc.loadrs is 14 bits, we can assume that they'll never take up
97 * more than 16KB of space.
98 */
99#define MINSIGSTKSZ	131027	/* min. stack size for sigaltstack() */
100#define SIGSTKSZ	262144	/* default stack size for sigaltstack() */
101
102#ifdef __KERNEL__
103
104#define _NSIG		64
105#define _NSIG_BPW	64
106#define _NSIG_WORDS	(_NSIG / _NSIG_BPW)
107
108/*
109 * These values of sa_flags are used only by the kernel as part of the
110 * irq handling routines.
111 *
112 * SA_INTERRUPT is also used by the irq handling routines.
113 * SA_SHIRQ is for shared interrupt support on PCI and EISA.
114 */
115#define SA_PROBE		SA_ONESHOT
116#define SA_SAMPLE_RANDOM	SA_RESTART
117#define SA_SHIRQ		0x04000000
118#define SA_PERCPU_IRQ		0x02000000
119
120#endif /* __KERNEL__ */
121
122#define SIG_BLOCK          0	/* for blocking signals */
123#define SIG_UNBLOCK        1	/* for unblocking signals */
124#define SIG_SETMASK        2	/* for setting the signal mask */
125
126#define SIG_DFL	((__sighandler_t)0)	/* default signal handling */
127#define SIG_IGN	((__sighandler_t)1)	/* ignore signal */
128#define SIG_ERR	((__sighandler_t)-1)	/* error return from signal */
129
130# ifndef __ASSEMBLY__
131
132#  include <linux/types.h>
133
134/* Avoid too many header ordering problems.  */
135struct siginfo;
136
137/* Type of a signal handler.  */
138typedef void (*__sighandler_t)(int);
139
140typedef struct sigaltstack {
141	void *ss_sp;
142	int ss_flags;
143	size_t ss_size;
144} stack_t;
145
146#ifdef __KERNEL__
147
148/* Most things should be clean enough to redefine this at will, if care
149   is taken to make libc match.  */
150
151typedef unsigned long old_sigset_t;
152
153typedef struct {
154	unsigned long sig[_NSIG_WORDS];
155} sigset_t;
156
157struct sigaction {
158	__sighandler_t sa_handler;
159	unsigned long sa_flags;
160	sigset_t sa_mask;		/* mask last for extensibility */
161};
162
163struct k_sigaction {
164	struct sigaction sa;
165};
166
167#  include <asm/sigcontext.h>
168
169#endif /* __KERNEL__ */
170
171# endif /* !__ASSEMBLY__ */
172#endif /* _ASM_IA64_SIGNAL_H */
173