1#ifndef _ASMPPC64_SIGNAL_H
2#define _ASMPPC64_SIGNAL_H
3
4#include <linux/types.h>
5
6/* Avoid too many header ordering problems.  */
7struct siginfo;
8
9#define _NSIG		64
10#define _NSIG_BPW	64
11#define _NSIG_WORDS	(_NSIG / _NSIG_BPW)
12
13typedef unsigned long old_sigset_t;		/* at least 32 bits */
14
15typedef struct {
16	unsigned long sig[_NSIG_WORDS];
17} sigset_t;
18
19#define SIGHUP		 1
20#define SIGINT		 2
21#define SIGQUIT		 3
22#define SIGILL		 4
23#define SIGTRAP		 5
24#define SIGABRT		 6
25#define SIGIOT		 6
26#define SIGBUS		 7
27#define SIGFPE		 8
28#define SIGKILL		 9
29#define SIGUSR1		10
30#define SIGSEGV		11
31#define SIGUSR2		12
32#define SIGPIPE		13
33#define SIGALRM		14
34#define SIGTERM		15
35#define SIGSTKFLT	16
36#define SIGCHLD		17
37#define SIGCONT		18
38#define SIGSTOP		19
39#define SIGTSTP		20
40#define SIGTTIN		21
41#define SIGTTOU		22
42#define SIGURG		23
43#define SIGXCPU		24
44#define SIGXFSZ		25
45#define SIGVTALRM	26
46#define SIGPROF		27
47#define SIGWINCH	28
48#define SIGIO		29
49#define SIGPOLL		SIGIO
50/*
51#define SIGLOST		29
52*/
53#define SIGPWR		30
54#define SIGSYS		31
55#define	SIGUNUSED	31
56
57/* These should not be considered constants from userland.  */
58#define SIGRTMIN	32
59#define SIGRTMAX	(_NSIG-1)
60
61/*
62 * SA_FLAGS values:
63 *
64 * SA_ONSTACK is not currently supported, but will allow sigaltstack(2).
65 * SA_INTERRUPT is a no-op, but left due to historical reasons. Use the
66 * SA_RESTART flag to get restarting signals (which were the default long ago)
67 * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
68 * SA_RESETHAND clears the handler when the signal is delivered.
69 * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
70 * SA_NODEFER prevents the current signal from being masked in the handler.
71 *
72 * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
73 * Unix names RESETHAND and NODEFER respectively.
74 */
75#define SA_NOCLDSTOP	0x00000001
76#define SA_NOCLDWAIT	0x00000002 /* not supported yet */
77#define SA_SIGINFO	0x00000004
78#define SA_ONSTACK	0x08000000
79#define SA_RESTART	0x10000000
80#define SA_NODEFER	0x40000000
81#define SA_RESETHAND	0x80000000
82
83#define SA_NOMASK	SA_NODEFER
84#define SA_ONESHOT	SA_RESETHAND
85#define SA_INTERRUPT	0x20000000 /* dummy -- ignored */
86
87#define SA_RESTORER	0x04000000
88
89/*
90 * sigaltstack controls
91 */
92#define SS_ONSTACK	1
93#define SS_DISABLE	2
94
95#define MINSIGSTKSZ	2048
96#define SIGSTKSZ	8192
97#ifdef __KERNEL__
98
99/*
100 * These values of sa_flags are used only by the kernel as part of the
101 * irq handling routines.
102 *
103 * SA_INTERRUPT is also used by the irq handling routines.
104 * SA_SHIRQ is for shared interrupt support on PCI and EISA.
105 */
106#define SA_PROBE		SA_ONESHOT
107#define SA_SAMPLE_RANDOM	SA_RESTART
108#define SA_SHIRQ		0x04000000
109#endif
110
111#define SIG_BLOCK          0	/* for blocking signals */
112#define SIG_UNBLOCK        1	/* for unblocking signals */
113#define SIG_SETMASK        2	/* for setting the signal mask */
114
115/* Type of a signal handler.  */
116typedef void (*__sighandler_t)(int);
117
118#define SIG_DFL	((__sighandler_t)0)	/* default signal handling */
119#define SIG_IGN	((__sighandler_t)1)	/* ignore signal */
120#define SIG_ERR	((__sighandler_t)-1)	/* error return from signal */
121
122struct old_sigaction {
123	__sighandler_t sa_handler;
124	old_sigset_t sa_mask;
125	unsigned long sa_flags;
126	void (*sa_restorer)(void);
127};
128
129struct sigaction {
130	__sighandler_t sa_handler;
131	unsigned long sa_flags;
132	void (*sa_restorer)(void);
133	sigset_t sa_mask;		/* mask last for extensibility */
134};
135
136struct k_sigaction {
137	struct sigaction sa;
138};
139
140typedef struct sigaltstack {
141	void *ss_sp;
142	int ss_flags;
143	size_t ss_size;
144} stack_t;
145
146#endif /* _ASMPPC64_SIGNAL_H */
147