1 /* $Id: signal.h,v 1.35 1999/09/06 08:22:04 jj Exp $ */
2 #ifndef _ASMSPARC_SIGNAL_H
3 #define _ASMSPARC_SIGNAL_H
5 #include <asm/sigcontext.h>
6 #include <linux/compiler.h>
10 #include <linux/personality.h>
11 #include <linux/types.h>
15 /* On the Sparc the signal handlers get passed a 'sub-signal' code
16 * for certain signal types, which we document here.
22 #define SUBSIG_STACK 0
23 #define SUBSIG_ILLINST 2
24 #define SUBSIG_PRIVINST 3
25 #define SUBSIG_BADTRAP(t) (0x80 + (t))
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
48 #define SUBSIG_BUSTIMEOUT 1
49 #define SUBSIG_ALIGNMENT 2
50 #define SUBSIG_MISCERROR 5
53 #define SUBSIG_NOMAPPING 3
54 #define SUBSIG_PROTECTION 4
55 #define SUBSIG_SEGERROR 5
64 /* SunOS values which deviate from the Linux/i386 ones */
72 #define SIGPOLL SIGIO /* SysV name for SIGIO */
79 #define SIGPWR SIGLOST
83 /* Most things should be clean enough to redefine this at will, if care
84 * is taken to make libc match.
90 #define _NSIG_WORDS (__NEW_NSIG / _NSIG_BPW)
93 #define SIGRTMAX __NEW_NSIG
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
102 #define _NSIG __OLD_NSIG
103 #define __old_sigset_t sigset_t
104 #define __old_sigaction sigaction
109 typedef unsigned long __old_sigset_t;
112 unsigned long sig[_NSIG_WORDS];
117 /* A SunOS sigstack */
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 */
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_RESTART flag to get restarting signals (which were the default long ago)
137 #define SA_NOCLDSTOP _SV_IGNCHILD
138 #define SA_STACK _SV_SSTACK
139 #define SA_ONSTACK _SV_SSTACK
140 #define SA_RESTART _SV_INTR
141 #define SA_ONESHOT _SV_RESET
142 #define SA_NOMASK 0x20u
143 #define SA_NOCLDWAIT 0x100u
144 #define SA_SIGINFO 0x200u
146 #define SIG_BLOCK 0x01 /* for blocking signals */
147 #define SIG_UNBLOCK 0x02 /* for unblocking signals */
148 #define SIG_SETMASK 0x04 /* for setting the signal mask */
151 * sigaltstack controls
156 #define MINSIGSTKSZ 4096
157 #define SIGSTKSZ 16384
162 * SA_STATIC_ALLOC is used for the SPARC system to indicate that this
163 * interrupt handler's irq structure should be statically allocated
164 * by the request_irq routine.
165 * The alternative is that arch/sparc/kernel/irq.c has carnal knowledge
166 * of interrupt usage and that sucks. Also without a flag like this
167 * it may be possible for the free_irq routine to attempt to free
168 * statically allocated data.. which is NOT GOOD.
171 #define SA_STATIC_ALLOC 0x8000
174 #include <asm-generic/signal.h>
177 struct __new_sigaction {
178 __sighandler_t sa_handler;
179 unsigned long sa_flags;
180 void (*sa_restorer)(void); /* Not used by Linux/SPARC */
181 __new_sigset_t sa_mask;
185 struct __new_sigaction sa;
186 void __user *ka_restorer;
189 struct __old_sigaction {
190 __sighandler_t sa_handler;
191 __old_sigset_t sa_mask;
192 unsigned long sa_flags;
193 void (*sa_restorer) (void); /* not used by Linux/SPARC */
196 typedef struct sigaltstack {
202 struct sparc_deliver_cookie {
204 unsigned long orig_i0;
208 extern void ptrace_signal_deliver(struct pt_regs *regs, void *cookie);
210 #endif /* !(__KERNEL__) */
212 #endif /* !(__ASSEMBLY__) */
214 #endif /* !(_ASMSPARC_SIGNAL_H) */