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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-alpha/signal.h
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'include/asm-alpha/signal.h')
-rw-r--r--include/asm-alpha/signal.h197
1 files changed, 197 insertions, 0 deletions
diff --git a/include/asm-alpha/signal.h b/include/asm-alpha/signal.h
new file mode 100644
index 000000000000..25f98bc5576f
--- /dev/null
+++ b/include/asm-alpha/signal.h
@@ -0,0 +1,197 @@
1#ifndef _ASMAXP_SIGNAL_H
2#define _ASMAXP_SIGNAL_H
3
4#include <linux/types.h>
5
6/* Avoid too many header ordering problems. */
7struct 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
17typedef unsigned long old_sigset_t; /* at least 32 bits */
18
19typedef 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
27typedef 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
113#ifdef __KERNEL__
114/*
115 * These values of sa_flags are used only by the kernel as part of the
116 * irq handling routines.
117 *
118 * SA_INTERRUPT is also used by the irq handling routines.
119 * SA_SHIRQ is for shared interrupt support on PCI and EISA.
120 */
121#define SA_PROBE SA_ONESHOT
122#define SA_SAMPLE_RANDOM SA_RESTART
123#define SA_SHIRQ 0x40000000
124#endif
125
126#define SIG_BLOCK 1 /* for blocking signals */
127#define SIG_UNBLOCK 2 /* for unblocking signals */
128#define SIG_SETMASK 3 /* for setting the signal mask */
129
130/* Type of a signal handler. */
131typedef void __signalfn_t(int);
132typedef __signalfn_t __user *__sighandler_t;
133
134typedef void __restorefn_t(void);
135typedef __restorefn_t __user *__sigrestore_t;
136
137#define SIG_DFL ((__sighandler_t)0) /* default signal handling */
138#define SIG_IGN ((__sighandler_t)1) /* ignore signal */
139#define SIG_ERR ((__sighandler_t)-1) /* error return from signal */
140
141#ifdef __KERNEL__
142struct osf_sigaction {
143 __sighandler_t sa_handler;
144 old_sigset_t sa_mask;
145 int sa_flags;
146};
147
148struct sigaction {
149 __sighandler_t sa_handler;
150 unsigned long sa_flags;
151 sigset_t sa_mask; /* mask last for extensibility */
152};
153
154struct k_sigaction {
155 struct sigaction sa;
156 __sigrestore_t ka_restorer;
157};
158#else
159/* Here we must cater to libcs that poke about in kernel headers. */
160
161struct sigaction {
162 union {
163 __sighandler_t _sa_handler;
164 void (*_sa_sigaction)(int, struct siginfo *, void *);
165 } _u;
166 sigset_t sa_mask;
167 int sa_flags;
168};
169
170#define sa_handler _u._sa_handler
171#define sa_sigaction _u._sa_sigaction
172
173#endif /* __KERNEL__ */
174
175typedef struct sigaltstack {
176 void __user *ss_sp;
177 int ss_flags;
178 size_t ss_size;
179} stack_t;
180
181/* sigstack(2) is deprecated, and will be withdrawn in a future version
182 of the X/Open CAE Specification. Use sigaltstack instead. It is only
183 implemented here for OSF/1 compatibility. */
184
185struct sigstack {
186 void __user *ss_sp;
187 int ss_onstack;
188};
189
190#ifdef __KERNEL__
191#include <asm/sigcontext.h>
192
193#define ptrace_signal_deliver(regs, cookie) do { } while (0)
194
195#endif
196
197#endif