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Contents of /alx-src/tags/kernel26-2.6.12-alx-r9/include/asm-alpha/signal.h

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Revision 630 - (show annotations) (download)
Wed Mar 4 11:03:09 2009 UTC (15 years, 3 months ago) by niro
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Tag kernel26-2.6.12-alx-r9
1 #ifndef _ASMAXP_SIGNAL_H
2 #define _ASMAXP_SIGNAL_H
3
4 #include <linux/types.h>
5
6 /* Avoid too many header ordering problems. */
7 struct siginfo;
8
9 #ifdef __KERNEL__
10 /* Digital Unix defines 64 signals. Most things should be clean enough
11 to redefine this at will, if care is taken to make libc match. */
12
13 #define _NSIG 64
14 #define _NSIG_BPW 64
15 #define _NSIG_WORDS (_NSIG / _NSIG_BPW)
16
17 typedef unsigned long old_sigset_t; /* at least 32 bits */
18
19 typedef struct {
20 unsigned long sig[_NSIG_WORDS];
21 } sigset_t;
22
23 #else
24 /* Here we must cater to libcs that poke about in kernel headers. */
25
26 #define NSIG 32
27 typedef unsigned long sigset_t;
28
29 #endif /* __KERNEL__ */
30
31
32 /*
33 * Linux/AXP has different signal numbers that Linux/i386: I'm trying
34 * to make it OSF/1 binary compatible, at least for normal binaries.
35 */
36 #define SIGHUP 1
37 #define SIGINT 2
38 #define SIGQUIT 3
39 #define SIGILL 4
40 #define SIGTRAP 5
41 #define SIGABRT 6
42 #define SIGEMT 7
43 #define SIGFPE 8
44 #define SIGKILL 9
45 #define SIGBUS 10
46 #define SIGSEGV 11
47 #define SIGSYS 12
48 #define SIGPIPE 13
49 #define SIGALRM 14
50 #define SIGTERM 15
51 #define SIGURG 16
52 #define SIGSTOP 17
53 #define SIGTSTP 18
54 #define SIGCONT 19
55 #define SIGCHLD 20
56 #define SIGTTIN 21
57 #define SIGTTOU 22
58 #define SIGIO 23
59 #define SIGXCPU 24
60 #define SIGXFSZ 25
61 #define SIGVTALRM 26
62 #define SIGPROF 27
63 #define SIGWINCH 28
64 #define SIGINFO 29
65 #define SIGUSR1 30
66 #define SIGUSR2 31
67
68 #define SIGPOLL SIGIO
69 #define SIGPWR SIGINFO
70 #define SIGIOT SIGABRT
71
72 /* These should not be considered constants from userland. */
73 #define SIGRTMIN 32
74 #define SIGRTMAX _NSIG
75
76 /*
77 * SA_FLAGS values:
78 *
79 * SA_ONSTACK indicates that a registered stack_t will be used.
80 * SA_INTERRUPT is a no-op, but left due to historical reasons. Use the
81 * SA_RESTART flag to get restarting signals (which were the default long ago)
82 * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
83 * SA_RESETHAND clears the handler when the signal is delivered.
84 * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
85 * SA_NODEFER prevents the current signal from being masked in the handler.
86 *
87 * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
88 * Unix names RESETHAND and NODEFER respectively.
89 */
90
91 #define SA_ONSTACK 0x00000001
92 #define SA_RESTART 0x00000002
93 #define SA_NOCLDSTOP 0x00000004
94 #define SA_NODEFER 0x00000008
95 #define SA_RESETHAND 0x00000010
96 #define SA_NOCLDWAIT 0x00000020
97 #define SA_SIGINFO 0x00000040
98
99 #define SA_ONESHOT SA_RESETHAND
100 #define SA_NOMASK SA_NODEFER
101 #define SA_INTERRUPT 0x20000000 /* dummy -- ignored */
102
103 /*
104 * sigaltstack controls
105 */
106 #define SS_ONSTACK 1
107 #define SS_DISABLE 2
108
109 #define MINSIGSTKSZ 4096
110 #define SIGSTKSZ 16384
111
112 #define SIG_BLOCK 1 /* for blocking signals */
113 #define SIG_UNBLOCK 2 /* for unblocking signals */
114 #define SIG_SETMASK 3 /* for setting the signal mask */
115
116 #include <asm-generic/signal.h>
117
118 #ifdef __KERNEL__
119 struct osf_sigaction {
120 __sighandler_t sa_handler;
121 old_sigset_t sa_mask;
122 int sa_flags;
123 };
124
125 struct sigaction {
126 __sighandler_t sa_handler;
127 unsigned long sa_flags;
128 sigset_t sa_mask; /* mask last for extensibility */
129 };
130
131 struct k_sigaction {
132 struct sigaction sa;
133 __sigrestore_t ka_restorer;
134 };
135 #else
136 /* Here we must cater to libcs that poke about in kernel headers. */
137
138 struct sigaction {
139 union {
140 __sighandler_t _sa_handler;
141 void (*_sa_sigaction)(int, struct siginfo *, void *);
142 } _u;
143 sigset_t sa_mask;
144 int sa_flags;
145 };
146
147 #define sa_handler _u._sa_handler
148 #define sa_sigaction _u._sa_sigaction
149
150 #endif /* __KERNEL__ */
151
152 typedef struct sigaltstack {
153 void __user *ss_sp;
154 int ss_flags;
155 size_t ss_size;
156 } stack_t;
157
158 /* sigstack(2) is deprecated, and will be withdrawn in a future version
159 of the X/Open CAE Specification. Use sigaltstack instead. It is only
160 implemented here for OSF/1 compatibility. */
161
162 struct sigstack {
163 void __user *ss_sp;
164 int ss_onstack;
165 };
166
167 #ifdef __KERNEL__
168 #include <asm/sigcontext.h>
169
170 #define ptrace_signal_deliver(regs, cookie) do { } while (0)
171
172 #endif
173
174 #endif