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