1/*
2 * include/asm-xtensa/signal.h
3 *
4 * Swiped from SH.
5 *
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
8 * for more details.
9 *
10 * Copyright (C) 2001 - 2005 Tensilica Inc.
11 */
12
13#ifndef _UAPI_XTENSA_SIGNAL_H
14#define _UAPI_XTENSA_SIGNAL_H
15
16
17#define _NSIG		64
18#define _NSIG_BPW	32
19#define _NSIG_WORDS	(_NSIG / _NSIG_BPW)
20
21#ifndef __ASSEMBLY__
22
23#include <linux/types.h>
24
25/* Avoid too many header ordering problems.  */
26struct siginfo;
27typedef unsigned long old_sigset_t;		/* at least 32 bits */
28typedef struct {
29	unsigned long sig[_NSIG_WORDS];
30} sigset_t;
31
32#endif
33
34#define SIGHUP		 1
35#define SIGINT		 2
36#define SIGQUIT		 3
37#define SIGILL		 4
38#define SIGTRAP		 5
39#define SIGABRT		 6
40#define SIGIOT		 6
41#define SIGBUS		 7
42#define SIGFPE		 8
43#define SIGKILL		 9
44#define SIGUSR1		10
45#define SIGSEGV		11
46#define SIGUSR2		12
47#define SIGPIPE		13
48#define SIGALRM		14
49#define SIGTERM		15
50#define SIGSTKFLT	16
51#define SIGCHLD		17
52#define SIGCONT		18
53#define SIGSTOP		19
54#define SIGTSTP		20
55#define SIGTTIN		21
56#define SIGTTOU		22
57#define SIGURG		23
58#define SIGXCPU		24
59#define SIGXFSZ		25
60#define SIGVTALRM	26
61#define SIGPROF		27
62#define SIGWINCH	28
63#define SIGIO		29
64#define SIGPOLL		SIGIO
65/* #define SIGLOST		29 */
66#define SIGPWR		30
67#define SIGSYS		31
68#define	SIGUNUSED	31
69
70/* These should not be considered constants from userland.  */
71#define SIGRTMIN	32
72#define SIGRTMAX	(_NSIG-1)
73
74/*
75 * SA_FLAGS values:
76 *
77 * SA_ONSTACK indicates that a registered stack_t will be used.
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.
83 *
84 * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
85 * Unix names RESETHAND and NODEFER respectively.
86 */
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
94
95#define SA_NOMASK	SA_NODEFER
96#define SA_ONESHOT	SA_RESETHAND
97
98#define SA_RESTORER	0x04000000
99
100#define MINSIGSTKSZ	2048
101#define SIGSTKSZ	8192
102
103#ifndef __ASSEMBLY__
104
105#include <asm-generic/signal-defs.h>
106
107#ifndef __KERNEL__
108
109/* Here we must cater to libcs that poke about in kernel headers.  */
110
111struct sigaction {
112	union {
113	  __sighandler_t _sa_handler;
114	  void (*_sa_sigaction)(int, struct siginfo *, void *);
115	} _u;
116	sigset_t sa_mask;
117	unsigned long sa_flags;
118	void (*sa_restorer)(void);
119};
120
121#define sa_handler	_u._sa_handler
122#define sa_sigaction	_u._sa_sigaction
123
124#endif /* __KERNEL__ */
125
126typedef struct sigaltstack {
127	void *ss_sp;
128	int ss_flags;
129	size_t ss_size;
130} stack_t;
131
132#endif	/* __ASSEMBLY__ */
133#endif /* _UAPI_XTENSA_SIGNAL_H */
134