1 #ifndef _M68KNOMMU_SIGNAL_H
2 #define _M68KNOMMU_SIGNAL_H
4 #include <linux/types.h>
6 /* Avoid too many header ordering problems. */
10 /* Most things should be clean enough to redefine this at will, if care
11 is taken to make libc match. */
15 #define _NSIG_WORDS (_NSIG / _NSIG_BPW)
17 typedef unsigned long old_sigset_t
; /* at least 32 bits */
20 unsigned long sig
[_NSIG_WORDS
];
24 /* Here we must cater to libcs that poke about in kernel headers. */
27 typedef unsigned long sigset_t
;
29 #endif /* __KERNEL__ */
69 /* These should not be considered constants from userland. */
71 #define SIGRTMAX _NSIG
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
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 */
100 * sigaltstack controls
105 #define MINSIGSTKSZ 2048
106 #define SIGSTKSZ 8192
108 #define SIG_BLOCK 0 /* for blocking signals */
109 #define SIG_UNBLOCK 1 /* for unblocking signals */
110 #define SIG_SETMASK 2 /* for setting the signal mask */
112 /* Type of a signal handler. */
113 typedef void (*__sighandler_t
)(int);
115 #define SIG_DFL ((__sighandler_t)0) /* default signal handling */
116 #define SIG_IGN ((__sighandler_t)1) /* ignore signal */
117 #define SIG_ERR ((__sighandler_t)-1) /* error return from signal */
120 struct old_sigaction
{
121 __sighandler_t sa_handler
;
122 old_sigset_t sa_mask
;
123 unsigned long sa_flags
;
124 void (*sa_restorer
)(void);
128 __sighandler_t sa_handler
;
129 unsigned long sa_flags
;
130 void (*sa_restorer
)(void);
131 sigset_t sa_mask
; /* mask last for extensibility */
138 /* Here we must cater to libcs that poke about in kernel headers. */
142 __sighandler_t _sa_handler
;
143 void (*_sa_sigaction
)(int, struct siginfo
*, void *);
146 unsigned long sa_flags
;
147 void (*sa_restorer
)(void);
150 #define sa_handler _u._sa_handler
151 #define sa_sigaction _u._sa_sigaction
153 #endif /* __KERNEL__ */
155 typedef struct sigaltstack
{
163 #include <asm/sigcontext.h>
164 #undef __HAVE_ARCH_SIG_BITOPS
166 #define ptrace_signal_deliver(regs, cookie) do { } while (0)
168 #endif /* __KERNEL__ */
170 #endif /* _M68KNOMMU_SIGNAL_H */