1/*
2 * BK Id: SCCS/s.signal.h 1.5 05/17/01 18:14:25 cort
3 */
4#ifndef _ASMPPC_SIGNAL_H
5#define _ASMPPC_SIGNAL_H
6
7#ifdef __KERNEL__
8#include <linux/types.h>
9#endif /* __KERNEL__ */
10
11/* Avoid too many header ordering problems.  */
12struct siginfo;
13
14/* Most things should be clean enough to redefine this at will, if care
15   is taken to make libc match.  */
16
17#define _NSIG		64
18#define _NSIG_BPW	32
19#define _NSIG_WORDS	(_NSIG / _NSIG_BPW)
20
21typedef unsigned long old_sigset_t;		/* at least 32 bits */
22
23typedef struct {
24	unsigned long sig[_NSIG_WORDS];
25} sigset_t;
26
27#define SIGHUP		 1
28#define SIGINT		 2
29#define SIGQUIT		 3
30#define SIGILL		 4
31#define SIGTRAP		 5
32#define SIGABRT		 6
33#define SIGIOT		 6
34#define SIGBUS		 7
35#define SIGFPE		 8
36#define SIGKILL		 9
37#define SIGUSR1		10
38#define SIGSEGV		11
39#define SIGUSR2		12
40#define SIGPIPE		13
41#define SIGALRM		14
42#define SIGTERM		15
43#define SIGSTKFLT	16
44#define SIGCHLD		17
45#define SIGCONT		18
46#define SIGSTOP		19
47#define SIGTSTP		20
48#define SIGTTIN		21
49#define SIGTTOU		22
50#define SIGURG		23
51#define SIGXCPU		24
52#define SIGXFSZ		25
53#define SIGVTALRM	26
54#define SIGPROF		27
55#define SIGWINCH	28
56#define SIGIO		29
57#define SIGPOLL		SIGIO
58/*
59#define SIGLOST		29
60*/
61#define SIGPWR		30
62#define SIGSYS		31
63#define	SIGUNUSED	31
64
65/* These should not be considered constants from userland.  */
66#define SIGRTMIN	32
67#define SIGRTMAX	(_NSIG-1)
68
69/*
70 * SA_FLAGS values:
71 *
72 * SA_ONSTACK is not currently supported, but will allow sigaltstack(2).
73 * SA_INTERRUPT is a no-op, but left due to historical reasons. Use the
74 * SA_RESTART flag to get restarting signals (which were the default long ago)
75 * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
76 * SA_RESETHAND clears the handler when the signal is delivered.
77 * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
78 * SA_NODEFER prevents the current signal from being masked in the handler.
79 *
80 * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
81 * Unix names RESETHAND and NODEFER respectively.
82 */
83#define SA_NOCLDSTOP	0x00000001
84#define SA_NOCLDWAIT	0x00000002 /* not supported yet */
85#define SA_SIGINFO	0x00000004
86#define SA_ONSTACK	0x08000000
87#define SA_RESTART	0x10000000
88#define SA_NODEFER	0x40000000
89#define SA_RESETHAND	0x80000000
90
91#define SA_NOMASK	SA_NODEFER
92#define SA_ONESHOT	SA_RESETHAND
93#define SA_INTERRUPT	0x20000000 /* dummy -- ignored */
94
95#define SA_RESTORER	0x04000000
96
97/*
98 * sigaltstack controls
99 */
100#define SS_ONSTACK	1
101#define SS_DISABLE	2
102
103#define MINSIGSTKSZ	2048
104#define SIGSTKSZ	8192
105#ifdef __KERNEL__
106
107/*
108 * These values of sa_flags are used only by the kernel as part of the
109 * irq handling routines.
110 *
111 * SA_INTERRUPT is also used by the irq handling routines.
112 * SA_SHIRQ is for shared interrupt support on PCI and EISA.
113 */
114#define SA_PROBE		SA_ONESHOT
115#define SA_SAMPLE_RANDOM	SA_RESTART
116#define SA_SHIRQ		0x04000000
117#endif
118
119#define SIG_BLOCK          0	/* for blocking signals */
120#define SIG_UNBLOCK        1	/* for unblocking signals */
121#define SIG_SETMASK        2	/* for setting the signal mask */
122
123/* Type of a signal handler.  */
124typedef void (*__sighandler_t)(int);
125
126#define SIG_DFL	((__sighandler_t)0)	/* default signal handling */
127#define SIG_IGN	((__sighandler_t)1)	/* ignore signal */
128#define SIG_ERR	((__sighandler_t)-1)	/* error return from signal */
129
130struct old_sigaction {
131	__sighandler_t sa_handler;
132	old_sigset_t sa_mask;
133	unsigned long sa_flags;
134	void (*sa_restorer)(void);
135};
136
137struct sigaction {
138	__sighandler_t sa_handler;
139	unsigned long sa_flags;
140	void (*sa_restorer)(void);
141	sigset_t sa_mask;		/* mask last for extensibility */
142};
143
144struct k_sigaction {
145	struct sigaction sa;
146};
147
148typedef struct sigaltstack {
149	void *ss_sp;
150	int ss_flags;
151	size_t ss_size;
152} stack_t;
153
154#ifdef __KERNEL__
155#include <asm/sigcontext.h>
156
157#endif
158
159#endif
160