1 #ifndef __ASM_SH64_SIGNAL_H
2 #define __ASM_SH64_SIGNAL_H
5 * This file is subject to the terms and conditions of the GNU General Public
6 * License. See the file "COPYING" in the main directory of this archive
9 * include/asm-sh64/signal.h
11 * Copyright (C) 2000, 2001 Paolo Alberelli
15 #include <linux/types.h>
16 #include <asm/processor.h>
18 /* Avoid too many header ordering problems. */
23 #define _NSIG_WORDS (_NSIG / _NSIG_BPW)
25 typedef unsigned long old_sigset_t; /* at least 32 bits */
28 unsigned long sig[_NSIG_WORDS];
69 /* These should not be considered constants from userland. */
71 #define SIGRTMAX (_NSIG-1)
76 * SA_ONSTACK indicates that a registered stack_t will be used.
77 * SA_INTERRUPT is a no-op, but left due to historical reasons. Use the
78 * SA_RESTART flag to get restarting signals (which were the default long ago)
79 * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
80 * SA_RESETHAND clears the handler when the signal is delivered.
81 * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
82 * SA_NODEFER prevents the current signal from being masked in the handler.
84 * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
85 * Unix names RESETHAND and NODEFER respectively.
87 #define SA_NOCLDSTOP 0x00000001
88 #define SA_NOCLDWAIT 0x00000002 /* not supported yet */
89 #define SA_SIGINFO 0x00000004
90 #define SA_ONSTACK 0x08000000
91 #define SA_RESTART 0x10000000
92 #define SA_NODEFER 0x40000000
93 #define SA_RESETHAND 0x80000000
95 #define SA_NOMASK SA_NODEFER
96 #define SA_ONESHOT SA_RESETHAND
97 #define SA_INTERRUPT 0x20000000 /* dummy -- ignored */
99 #define SA_RESTORER 0x04000000
102 * sigaltstack controls
107 #define MINSIGSTKSZ 2048
108 #define SIGSTKSZ THREAD_SIZE
110 #define SIG_BLOCK 0 /* for blocking signals */
111 #define SIG_UNBLOCK 1 /* for unblocking signals */
112 #define SIG_SETMASK 2 /* for setting the signal mask */
114 /* Type of a signal handler. */
115 typedef void (*__sighandler_t)(int);
117 #define SIG_DFL ((__sighandler_t)0) /* default signal handling */
118 #define SIG_IGN ((__sighandler_t)1) /* ignore signal */
119 #define SIG_ERR ((__sighandler_t)-1) /* error return from signal */
122 struct old_sigaction {
123 __sighandler_t sa_handler;
124 old_sigset_t sa_mask;
125 unsigned long sa_flags;
126 void (*sa_restorer)(void);
130 __sighandler_t sa_handler;
131 unsigned long sa_flags;
132 void (*sa_restorer)(void);
133 sigset_t sa_mask; /* mask last for extensibility */
140 /* Here we must cater to libcs that poke about in kernel headers. */
144 __sighandler_t _sa_handler;
145 void (*_sa_sigaction)(int, struct siginfo *, void *);
148 unsigned long sa_flags;
149 void (*sa_restorer)(void);
152 #define sa_handler _u._sa_handler
153 #define sa_sigaction _u._sa_sigaction
155 #endif /* __KERNEL__ */
157 typedef struct sigaltstack {
164 #include <asm/sigcontext.h>
166 #define sigmask(sig) (1UL << ((sig) - 1))
167 #define ptrace_signal_deliver(regs, cookie) do { } while (0)
169 #endif /* __KERNEL__ */
171 #endif /* __ASM_SH64_SIGNAL_H */