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