1 #ifndef __SPARC_SIGNAL_H
2 #define __SPARC_SIGNAL_H
4 #include <asm/sigcontext.h>
5 #include <linux/compiler.h>
9 #include <linux/personality.h>
10 #include <linux/types.h>
14 /* On the Sparc the signal handlers get passed a 'sub-signal' code
15 * for certain signal types, which we document here.
21 #define SUBSIG_STACK 0
22 #define SUBSIG_ILLINST 2
23 #define SUBSIG_PRIVINST 3
24 #define SUBSIG_BADTRAP(t) (0x80 + (t))
34 #define SUBSIG_FPDISABLED 0x400
35 #define SUBSIG_FPERROR 0x404
36 #define SUBSIG_FPINTOVFL 0x001
37 #define SUBSIG_FPSTSIG 0x002
38 #define SUBSIG_IDIVZERO 0x014
39 #define SUBSIG_FPINEXACT 0x0c4
40 #define SUBSIG_FPDIVZERO 0x0c8
41 #define SUBSIG_FPUNFLOW 0x0cc
42 #define SUBSIG_FPOPERROR 0x0d0
43 #define SUBSIG_FPOVFLOW 0x0d4
47 #define SUBSIG_BUSTIMEOUT 1
48 #define SUBSIG_ALIGNMENT 2
49 #define SUBSIG_MISCERROR 5
52 #define SUBSIG_NOMAPPING 3
53 #define SUBSIG_PROTECTION 4
54 #define SUBSIG_SEGERROR 5
63 /* SunOS values which deviate from the Linux/i386 ones */
71 #define SIGPOLL SIGIO /* SysV name for SIGIO */
78 #define SIGPWR SIGLOST
82 /* Most things should be clean enough to redefine this at will, if care
83 is taken to make libc match. */
92 #define _NSIG_WORDS (__NEW_NSIG / _NSIG_BPW)
95 #define SIGRTMAX __NEW_NSIG
97 #if defined(__KERNEL__) || defined(__WANT_POSIX1B_SIGNALS__)
98 #define _NSIG __NEW_NSIG
99 #define __new_sigset_t sigset_t
100 #define __new_sigaction sigaction
101 #define __new_sigaction32 sigaction32
102 #define __old_sigset_t old_sigset_t
103 #define __old_sigaction old_sigaction
104 #define __old_sigaction32 old_sigaction32
106 #define _NSIG __OLD_NSIG
108 #define __old_sigset_t sigset_t
109 #define __old_sigaction sigaction
110 #define __old_sigaction32 sigaction32
115 typedef unsigned long __old_sigset_t; /* at least 32 bits */
118 unsigned long sig[_NSIG_WORDS];
121 /* A SunOS sigstack */
123 /* XXX 32-bit pointers pinhead XXX */
129 #define _SV_SSTACK 1u /* This signal handler should use sig-stack */
130 #define _SV_INTR 2u /* Sig return should not restart system call */
131 #define _SV_RESET 4u /* Set handler to SIG_DFL upon taken signal */
132 #define _SV_IGNCHILD 8u /* Do not send SIGCHLD */
135 * sa_flags values: SA_STACK is not currently supported, but will allow the
136 * usage of signal stacks by using the (now obsolete) sa_restorer field in
137 * the sigaction structure as a stack pointer. This is now possible due to
138 * the changes in signal handling. LBT 010493.
139 * SA_RESTART flag to get restarting signals (which were the default long ago)
141 #define SA_NOCLDSTOP _SV_IGNCHILD
142 #define SA_STACK _SV_SSTACK
143 #define SA_ONSTACK _SV_SSTACK
144 #define SA_RESTART _SV_INTR
145 #define SA_ONESHOT _SV_RESET
146 #define SA_NOMASK 0x20u
147 #define SA_NOCLDWAIT 0x100u
148 #define SA_SIGINFO 0x200u
151 #define SIG_BLOCK 0x01 /* for blocking signals */
152 #define SIG_UNBLOCK 0x02 /* for unblocking signals */
153 #define SIG_SETMASK 0x04 /* for setting the signal mask */
156 * sigaltstack controls
161 #define MINSIGSTKSZ 4096
162 #define SIGSTKSZ 16384
167 * SA_STATIC_ALLOC is used for the sparc32 system to indicate that this
168 * interrupt handler's irq structure should be statically allocated
169 * by the request_irq routine.
170 * The alternative is that arch/sparc/kernel/irq.c has carnal knowledge
171 * of interrupt usage and that sucks. Also without a flag like this
172 * it may be possible for the free_irq routine to attempt to free
173 * statically allocated data.. which is NOT GOOD.
176 #define SA_STATIC_ALLOC 0x8000
179 #include <asm-generic/signal.h>
181 struct __new_sigaction {
182 __sighandler_t sa_handler;
183 unsigned long sa_flags;
184 __sigrestore_t sa_restorer; /* not used by Linux/SPARC yet */
185 __new_sigset_t sa_mask;
188 struct __old_sigaction {
189 __sighandler_t sa_handler;
190 __old_sigset_t sa_mask;
191 unsigned long sa_flags;
192 void (*sa_restorer)(void); /* not used by Linux/SPARC yet */
195 typedef struct sigaltstack {
204 struct __new_sigaction sa;
205 void __user *ka_restorer;
208 #define ptrace_signal_deliver(regs, cookie) do { } while (0)
210 #endif /* !(__KERNEL__) */
212 #endif /* !(__ASSEMBLY__) */
214 #endif /* !(__SPARC_SIGNAL_H) */