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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#ifndef _ASM_IA64_SIGNAL_H
2#define _ASM_IA64_SIGNAL_H
3
4/*
5 * Modified 1998-2001, 2003
6 * David Mosberger-Tang <davidm@hpl.hp.com>, Hewlett-Packard Co
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
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
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#if 1
100 /*
101 * This is a stupid typo: the value was _meant_ to be 131072 (0x20000), but I typed it
102 * in wrong. ;-( To preserve backwards compatibility, we leave the kernel at the
103 * incorrect value and fix libc only.
104 */
105# define MINSIGSTKSZ 131027 /* min. stack size for sigaltstack() */
106#else
107# define MINSIGSTKSZ 131072 /* min. stack size for sigaltstack() */
108#endif
109#define SIGSTKSZ 262144 /* default stack size for sigaltstack() */
110
111#ifdef __KERNEL__
112
113#define _NSIG 64
114#define _NSIG_BPW 64
115#define _NSIG_WORDS (_NSIG / _NSIG_BPW)
116
117/*
118 * These values of sa_flags are used only by the kernel as part of the
119 * irq handling routines.
120 *
121 * SA_INTERRUPT is also used by the irq handling routines.
122 * SA_SHIRQ is for shared interrupt support on PCI and EISA.
123 */
124#define SA_PROBE SA_ONESHOT
125#define SA_SAMPLE_RANDOM SA_RESTART
126#define SA_SHIRQ 0x04000000
127#define SA_PERCPU_IRQ 0x02000000
128
129#endif /* __KERNEL__ */
130
131#define SIG_BLOCK 0 /* for blocking signals */
132#define SIG_UNBLOCK 1 /* for unblocking signals */
133#define SIG_SETMASK 2 /* for setting the signal mask */
134
135#define SIG_DFL ((__sighandler_t)0) /* default signal handling */
136#define SIG_IGN ((__sighandler_t)1) /* ignore signal */
137#define SIG_ERR ((__sighandler_t)-1) /* error return from signal */
138
139# ifndef __ASSEMBLY__
140
141# include <linux/types.h>
142
143/* Avoid too many header ordering problems. */
144struct siginfo;
145
146/* Type of a signal handler. */
147typedef void __user (*__sighandler_t)(int);
148
149typedef struct sigaltstack {
150 void __user *ss_sp;
151 int ss_flags;
152 size_t ss_size;
153} stack_t;
154
155#ifdef __KERNEL__
156
157/* Most things should be clean enough to redefine this at will, if care
158 is taken to make libc match. */
159
160typedef unsigned long old_sigset_t;
161
162typedef struct {
163 unsigned long sig[_NSIG_WORDS];
164} sigset_t;
165
166struct sigaction {
167 __sighandler_t sa_handler;
168 unsigned long sa_flags;
169 sigset_t sa_mask; /* mask last for extensibility */
170};
171
172struct k_sigaction {
173 struct sigaction sa;
174};
175
176# include <asm/sigcontext.h>
177
178#define ptrace_signal_deliver(regs, cookie) do { } while (0)
179
180void set_sigdelayed(pid_t pid, int signo, int code, void __user *addr);
181
182#endif /* __KERNEL__ */
183
184# endif /* !__ASSEMBLY__ */
185#endif /* _ASM_IA64_SIGNAL_H */