2 * Copyright (C) 2006 Atmark Techno, Inc.
3 * Yasushi SHOJI <yashi@atmark-techno.com>
4 * Tetsuya OHKAWA <tetsuya@atmark-techno.com>
6 * This file is subject to the terms and conditions of the GNU General Public
7 * License. See the file "COPYING" in the main directory of this archive
11 #ifndef _ASM_MICROBLAZE_SIGNAL_H
12 #define _ASM_MICROBLAZE_SIGNAL_H
52 /* These should not be considered constants from userland. */
54 #define SIGRTMAX _NSIG
59 * SA_ONSTACK indicates that a registered stack_t will be used.
60 * SA_RESTART flag to get restarting signals (which were the default long ago)
61 * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
62 * SA_RESETHAND clears the handler when the signal is delivered.
63 * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
64 * SA_NODEFER prevents the current signal from being masked in the handler.
66 * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
67 * Unix names RESETHAND and NODEFER respectively.
69 #define SA_NOCLDSTOP 0x00000001
70 #define SA_NOCLDWAIT 0x00000002
71 #define SA_SIGINFO 0x00000004
72 #define SA_ONSTACK 0x08000000
73 #define SA_RESTART 0x10000000
74 #define SA_NODEFER 0x40000000
75 #define SA_RESETHAND 0x80000000
77 #define SA_NOMASK SA_NODEFER
78 #define SA_ONESHOT SA_RESETHAND
80 #define SA_RESTORER 0x04000000
83 * sigaltstack controls
88 #define MINSIGSTKSZ 2048
92 # include <linux/types.h>
93 # include <asm-generic/signal.h>
95 /* Avoid too many header ordering problems. */
100 * Most things should be clean enough to redefine this at will, if care
101 * is taken to make libc match.
104 # define _NSIG_BPW 32
105 # define _NSIG_WORDS (_NSIG / _NSIG_BPW)
107 typedef unsigned long old_sigset_t; /* at least 32 bits */
110 unsigned long sig[_NSIG_WORDS];
113 struct old_sigaction {
114 __sighandler_t sa_handler;
115 old_sigset_t sa_mask;
116 unsigned long sa_flags;
117 void (*sa_restorer)(void);
121 __sighandler_t sa_handler;
122 unsigned long sa_flags;
123 void (*sa_restorer)(void);
124 sigset_t sa_mask; /* mask last for extensibility */
131 # include <asm/sigcontext.h>
132 # undef __HAVE_ARCH_SIG_BITOPS
134 # define ptrace_signal_deliver(regs, cookie) do { } while (0)
136 # else /* !__KERNEL__ */
138 /* Here we must cater to libcs that poke about in kernel headers. */
141 typedef unsigned long sigset_t;
145 __sighandler_t _sa_handler;
146 void (*_sa_sigaction)(int, struct siginfo *, void *);
149 unsigned long sa_flags;
150 void (*sa_restorer)(void);
153 # define sa_handler _u._sa_handler
154 # define sa_sigaction _u._sa_sigaction
156 # endif /* __KERNEL__ */
158 typedef struct sigaltstack {
164 # endif /* __ASSEMBLY__ */
165 #endif /* _ASM_MICROBLAZE_SIGNAL_H */