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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/* $Id: signal.h,v 1.35 1999/09/06 08:22:04 jj Exp $ */
2#ifndef _ASMSPARC_SIGNAL_H
3#define _ASMSPARC_SIGNAL_H
4
5#include <asm/sigcontext.h>
6#include <linux/compiler.h>
7
8#ifdef __KERNEL__
9#ifndef __ASSEMBLY__
10#include <linux/personality.h>
11#include <linux/types.h>
12#endif
13#endif
14
15/* On the Sparc the signal handlers get passed a 'sub-signal' code
16 * for certain signal types, which we document here.
17 */
18#define SIGHUP 1
19#define SIGINT 2
20#define SIGQUIT 3
21#define SIGILL 4
22#define SUBSIG_STACK 0
23#define SUBSIG_ILLINST 2
24#define SUBSIG_PRIVINST 3
25#define SUBSIG_BADTRAP(t) (0x80 + (t))
26
27#define SIGTRAP 5
28#define SIGABRT 6
29#define SIGIOT 6
30
31#define SIGEMT 7
32#define SUBSIG_TAG 10
33
34#define SIGFPE 8
35#define SUBSIG_FPDISABLED 0x400
36#define SUBSIG_FPERROR 0x404
37#define SUBSIG_FPINTOVFL 0x001
38#define SUBSIG_FPSTSIG 0x002
39#define SUBSIG_IDIVZERO 0x014
40#define SUBSIG_FPINEXACT 0x0c4
41#define SUBSIG_FPDIVZERO 0x0c8
42#define SUBSIG_FPUNFLOW 0x0cc
43#define SUBSIG_FPOPERROR 0x0d0
44#define SUBSIG_FPOVFLOW 0x0d4
45
46#define SIGKILL 9
47#define SIGBUS 10
48#define SUBSIG_BUSTIMEOUT 1
49#define SUBSIG_ALIGNMENT 2
50#define SUBSIG_MISCERROR 5
51
52#define SIGSEGV 11
53#define SUBSIG_NOMAPPING 3
54#define SUBSIG_PROTECTION 4
55#define SUBSIG_SEGERROR 5
56
57#define SIGSYS 12
58
59#define SIGPIPE 13
60#define SIGALRM 14
61#define SIGTERM 15
62#define SIGURG 16
63
64/* SunOS values which deviate from the Linux/i386 ones */
65#define SIGSTOP 17
66#define SIGTSTP 18
67#define SIGCONT 19
68#define SIGCHLD 20
69#define SIGTTIN 21
70#define SIGTTOU 22
71#define SIGIO 23
72#define SIGPOLL SIGIO /* SysV name for SIGIO */
73#define SIGXCPU 24
74#define SIGXFSZ 25
75#define SIGVTALRM 26
76#define SIGPROF 27
77#define SIGWINCH 28
78#define SIGLOST 29
79#define SIGPWR SIGLOST
80#define SIGUSR1 30
81#define SIGUSR2 31
82
83/* Most things should be clean enough to redefine this at will, if care
84 * is taken to make libc match.
85 */
86
87#define __OLD_NSIG 32
88#define __NEW_NSIG 64
89#define _NSIG_BPW 32
90#define _NSIG_WORDS (__NEW_NSIG / _NSIG_BPW)
91
92#define SIGRTMIN 32
93#define SIGRTMAX __NEW_NSIG
94
95#if defined(__KERNEL__) || defined(__WANT_POSIX1B_SIGNALS__)
96#define _NSIG __NEW_NSIG
97#define __new_sigset_t sigset_t
98#define __new_sigaction sigaction
99#define __old_sigset_t old_sigset_t
100#define __old_sigaction old_sigaction
101#else
102#define _NSIG __OLD_NSIG
103#define __old_sigset_t sigset_t
104#define __old_sigaction sigaction
105#endif
106
107#ifndef __ASSEMBLY__
108
109typedef unsigned long __old_sigset_t;
110
111typedef struct {
112 unsigned long sig[_NSIG_WORDS];
113} __new_sigset_t;
114
115
116#ifdef __KERNEL__
117/* A SunOS sigstack */
118struct sigstack {
119 char *the_stack;
120 int cur_status;
121};
122#endif
123
124/* Sigvec flags */
125#define _SV_SSTACK 1u /* This signal handler should use sig-stack */
126#define _SV_INTR 2u /* Sig return should not restart system call */
127#define _SV_RESET 4u /* Set handler to SIG_DFL upon taken signal */
128#define _SV_IGNCHILD 8u /* Do not send SIGCHLD */
129
130/*
131 * sa_flags values: SA_STACK is not currently supported, but will allow the
132 * usage of signal stacks by using the (now obsolete) sa_restorer field in
133 * the sigaction structure as a stack pointer. This is now possible due to
134 * the changes in signal handling. LBT 010493.
135 * SA_INTERRUPT is a no-op, but left due to historical reasons. Use the
136 * SA_RESTART flag to get restarting signals (which were the default long ago)
137 * SA_SHIRQ flag is for shared interrupt support on PCI and EISA.
138 */
139#define SA_NOCLDSTOP _SV_IGNCHILD
140#define SA_STACK _SV_SSTACK
141#define SA_ONSTACK _SV_SSTACK
142#define SA_RESTART _SV_INTR
143#define SA_ONESHOT _SV_RESET
144#define SA_INTERRUPT 0x10u
145#define SA_NOMASK 0x20u
Linus Torvalds1da177e2005-04-16 15:20:36 -0700146#define SA_NOCLDWAIT 0x100u
147#define SA_SIGINFO 0x200u
148
149#define SIG_BLOCK 0x01 /* for blocking signals */
150#define SIG_UNBLOCK 0x02 /* for unblocking signals */
151#define SIG_SETMASK 0x04 /* for setting the signal mask */
152
153/*
154 * sigaltstack controls
155 */
156#define SS_ONSTACK 1
157#define SS_DISABLE 2
158
159#define MINSIGSTKSZ 4096
160#define SIGSTKSZ 16384
161
162#ifdef __KERNEL__
163/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700164 * DJHR
165 * SA_STATIC_ALLOC is used for the SPARC system to indicate that this
166 * interrupt handler's irq structure should be statically allocated
167 * by the request_irq routine.
168 * The alternative is that arch/sparc/kernel/irq.c has carnal knowledge
169 * of interrupt usage and that sucks. Also without a flag like this
170 * it may be possible for the free_irq routine to attempt to free
171 * statically allocated data.. which is NOT GOOD.
172 *
173 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700174#define SA_STATIC_ALLOC 0x80
175#endif
176
Al Virob1ecb4c2005-05-04 05:40:12 +0100177#include <asm-generic/signal.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -0700178
179#ifdef __KERNEL__
180struct __new_sigaction {
181 __sighandler_t sa_handler;
182 unsigned long sa_flags;
183 void (*sa_restorer)(void); /* Not used by Linux/SPARC */
184 __new_sigset_t sa_mask;
185};
186
187struct k_sigaction {
188 struct __new_sigaction sa;
189 void __user *ka_restorer;
190};
191
192struct __old_sigaction {
193 __sighandler_t sa_handler;
194 __old_sigset_t sa_mask;
195 unsigned long sa_flags;
196 void (*sa_restorer) (void); /* not used by Linux/SPARC */
197};
198
199typedef struct sigaltstack {
200 void __user *ss_sp;
201 int ss_flags;
202 size_t ss_size;
203} stack_t;
204
205struct sparc_deliver_cookie {
206 int restart_syscall;
207 unsigned long orig_i0;
208};
209
210struct pt_regs;
211extern void ptrace_signal_deliver(struct pt_regs *regs, void *cookie);
212
213#endif /* !(__KERNEL__) */
214
215#endif /* !(__ASSEMBLY__) */
216
217#endif /* !(_ASMSPARC_SIGNAL_H) */