1 #ifndef _ASMAXP_SIGNAL_H
2 #define _ASMAXP_SIGNAL_H
4 #include <linux/types.h>
6 /* Avoid too many header ordering problems. */
10 /* Digital Unix defines 64 signals. Most things should be clean enough
11 to redefine this at will, if care 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__ */
33 * Linux/AXP has different signal numbers that Linux/i386: I'm trying
34 * to make it OSF/1 binary compatible, at least for normal binaries.
69 #define SIGPWR SIGINFO
70 #define SIGIOT SIGABRT
72 /* These should not be considered constants from userland. */
74 #define SIGRTMAX _NSIG
79 * SA_ONSTACK indicates that a registered stack_t will be used.
80 * SA_INTERRUPT is a no-op, but left due to historical reasons. Use the
81 * SA_RESTART flag to get restarting signals (which were the default long ago)
82 * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
83 * SA_RESETHAND clears the handler when the signal is delivered.
84 * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
85 * SA_NODEFER prevents the current signal from being masked in the handler.
87 * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
88 * Unix names RESETHAND and NODEFER respectively.
91 #define SA_ONSTACK 0x00000001
92 #define SA_RESTART 0x00000002
93 #define SA_NOCLDSTOP 0x00000004
94 #define SA_NODEFER 0x00000008
95 #define SA_RESETHAND 0x00000010
96 #define SA_NOCLDWAIT 0x00000020
97 #define SA_SIGINFO 0x00000040
99 #define SA_ONESHOT SA_RESETHAND
100 #define SA_NOMASK SA_NODEFER
101 #define SA_INTERRUPT 0x20000000 /* dummy -- ignored */
104 * sigaltstack controls
109 #define MINSIGSTKSZ 4096
110 #define SIGSTKSZ 16384
112 #define SIG_BLOCK 1 /* for blocking signals */
113 #define SIG_UNBLOCK 2 /* for unblocking signals */
114 #define SIG_SETMASK 3 /* for setting the signal mask */
116 /* Type of a signal handler. */
117 typedef void __signalfn_t(int);
118 typedef __signalfn_t __user
*__sighandler_t
;
120 typedef void __restorefn_t(void);
121 typedef __restorefn_t __user
*__sigrestore_t
;
123 #define SIG_DFL ((__sighandler_t)0) /* default signal handling */
124 #define SIG_IGN ((__sighandler_t)1) /* ignore signal */
125 #define SIG_ERR ((__sighandler_t)-1) /* error return from signal */
128 struct osf_sigaction
{
129 __sighandler_t sa_handler
;
130 old_sigset_t sa_mask
;
135 __sighandler_t sa_handler
;
136 unsigned long sa_flags
;
137 sigset_t sa_mask
; /* mask last for extensibility */
142 __sigrestore_t ka_restorer
;
145 /* Here we must cater to libcs that poke about in kernel headers. */
149 __sighandler_t _sa_handler
;
150 void (*_sa_sigaction
)(int, struct siginfo
*, void *);
156 #define sa_handler _u._sa_handler
157 #define sa_sigaction _u._sa_sigaction
159 #endif /* __KERNEL__ */
161 typedef struct sigaltstack
{
167 /* sigstack(2) is deprecated, and will be withdrawn in a future version
168 of the X/Open CAE Specification. Use sigaltstack instead. It is only
169 implemented here for OSF/1 compatibility. */
177 #include <asm/sigcontext.h>
179 #define ptrace_signal_deliver(regs, cookie) do { } while (0)