2 * Copyright (C) 2004-2006 Atmel Corporation
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
8 #ifndef __ASM_AVR32_SIGNAL_H
9 #define __ASM_AVR32_SIGNAL_H
11 #include <linux/types.h>
13 /* Avoid too many header ordering problems. */
17 /* Most things should be clean enough to redefine this at will, if care
18 is taken to make libc match. */
22 #define _NSIG_WORDS (_NSIG / _NSIG_BPW)
24 typedef unsigned long old_sigset_t; /* at least 32 bits */
27 unsigned long sig[_NSIG_WORDS];
31 /* Here we must cater to libcs that poke about in kernel headers. */
34 typedef unsigned long sigset_t;
36 #endif /* __KERNEL__ */
76 /* These should not be considered constants from userland. */
78 #define SIGRTMAX (_NSIG-1)
83 * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
84 * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
85 * SA_SIGINFO deliver the signal with SIGINFO structs
86 * SA_ONSTACK indicates that a registered stack_t will be used.
87 * SA_RESTART flag to get restarting signals (which were the default long ago)
88 * SA_NODEFER prevents the current signal from being masked in the handler.
89 * SA_RESETHAND clears the handler when the signal is delivered.
91 * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
92 * Unix names RESETHAND and NODEFER respectively.
94 #define SA_NOCLDSTOP 0x00000001
95 #define SA_NOCLDWAIT 0x00000002
96 #define SA_SIGINFO 0x00000004
97 #define SA_RESTORER 0x04000000
98 #define SA_ONSTACK 0x08000000
99 #define SA_RESTART 0x10000000
100 #define SA_NODEFER 0x40000000
101 #define SA_RESETHAND 0x80000000
103 #define SA_NOMASK SA_NODEFER
104 #define SA_ONESHOT SA_RESETHAND
107 * sigaltstack controls
112 #define MINSIGSTKSZ 2048
113 #define SIGSTKSZ 8192
115 #include <asm-generic/signal.h>
118 struct old_sigaction {
119 __sighandler_t sa_handler;
120 old_sigset_t sa_mask;
121 unsigned long sa_flags;
122 __sigrestore_t sa_restorer;
126 __sighandler_t sa_handler;
127 unsigned long sa_flags;
128 __sigrestore_t sa_restorer;
129 sigset_t sa_mask; /* mask last for extensibility */
136 /* Here we must cater to libcs that poke about in kernel headers. */
140 __sighandler_t _sa_handler;
141 void (*_sa_sigaction)(int, struct siginfo *, void *);
144 unsigned long sa_flags;
145 void (*sa_restorer)(void);
148 #define sa_handler _u._sa_handler
149 #define sa_sigaction _u._sa_sigaction
151 #endif /* __KERNEL__ */
153 typedef struct sigaltstack {
161 #include <asm/sigcontext.h>
162 #undef __HAVE_ARCH_SIG_BITOPS
164 #define ptrace_signal_deliver(regs, cookie) do { } while (0)
166 #endif /* __KERNEL__ */