File: /usr/src/linux/include/asm-ia64/signal.h
1 #ifndef _ASM_IA64_SIGNAL_H
2 #define _ASM_IA64_SIGNAL_H
3
4 /*
5 * Copyright (C) 1998-2000 Hewlett-Packard Co
6 * Copyright (C) 1998-2000 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 #define MINSIGSTKSZ 2048
90 #define SIGSTKSZ 8192
91
92 #ifdef __KERNEL__
93
94 #define _NSIG 64
95 #define _NSIG_BPW 64
96 #define _NSIG_WORDS (_NSIG / _NSIG_BPW)
97
98 /*
99 * These values of sa_flags are used only by the kernel as part of the
100 * irq handling routines.
101 *
102 * SA_INTERRUPT is also used by the irq handling routines.
103 * SA_SHIRQ is for shared interrupt support on PCI and EISA.
104 */
105 #define SA_PROBE SA_ONESHOT
106 #define SA_SAMPLE_RANDOM SA_RESTART
107 #define SA_SHIRQ 0x04000000
108
109 #endif /* __KERNEL__ */
110
111 #define SIG_BLOCK 0 /* for blocking signals */
112 #define SIG_UNBLOCK 1 /* for unblocking signals */
113 #define SIG_SETMASK 2 /* for setting the signal mask */
114
115 #define SIG_DFL ((__sighandler_t)0) /* default signal handling */
116 #define SIG_IGN ((__sighandler_t)1) /* ignore signal */
117 #define SIG_ERR ((__sighandler_t)-1) /* error return from signal */
118
119 # ifndef __ASSEMBLY__
120
121 # include <linux/types.h>
122
123 /* Avoid too many header ordering problems. */
124 struct siginfo;
125
126 /* Type of a signal handler. */
127 typedef void (*__sighandler_t)(int);
128
129 typedef struct sigaltstack {
130 void *ss_sp;
131 int ss_flags;
132 size_t ss_size;
133 } stack_t;
134
135 #ifdef __KERNEL__
136
137 /* Most things should be clean enough to redefine this at will, if care
138 is taken to make libc match. */
139
140 typedef unsigned long old_sigset_t;
141
142 typedef struct {
143 unsigned long sig[_NSIG_WORDS];
144 } sigset_t;
145
146 struct sigaction {
147 __sighandler_t sa_handler;
148 unsigned long sa_flags;
149 sigset_t sa_mask; /* mask last for extensibility */
150 };
151
152 struct k_sigaction {
153 struct sigaction sa;
154 };
155
156 # include <asm/sigcontext.h>
157
158 #endif /* __KERNEL__ */
159
160 # endif /* !__ASSEMBLY__ */
161 #endif /* _ASM_IA64_SIGNAL_H */
162