blob: 37ad25355591f57bdbc3fb3dbc3795c2a452b818 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001#ifndef _ASMARM_SIGNAL_H
2#define _ASMARM_SIGNAL_H
3
4#include <linux/types.h>
5
6/* Avoid too many header ordering problems. */
7struct siginfo;
8
9#ifdef __KERNEL__
10/* Most things should be clean enough to redefine this at will, if care
11 is taken to make libc match. */
12
13#define _NSIG 64
14#define _NSIG_BPW 32
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#define SIGHUP 1
32#define SIGINT 2
33#define SIGQUIT 3
34#define SIGILL 4
35#define SIGTRAP 5
36#define SIGABRT 6
37#define SIGIOT 6
38#define SIGBUS 7
39#define SIGFPE 8
40#define SIGKILL 9
41#define SIGUSR1 10
42#define SIGSEGV 11
43#define SIGUSR2 12
44#define SIGPIPE 13
45#define SIGALRM 14
46#define SIGTERM 15
47#define SIGSTKFLT 16
48#define SIGCHLD 17
49#define SIGCONT 18
50#define SIGSTOP 19
51#define SIGTSTP 20
52#define SIGTTIN 21
53#define SIGTTOU 22
54#define SIGURG 23
55#define SIGXCPU 24
56#define SIGXFSZ 25
57#define SIGVTALRM 26
58#define SIGPROF 27
59#define SIGWINCH 28
60#define SIGIO 29
61#define SIGPOLL SIGIO
62/*
63#define SIGLOST 29
64*/
65#define SIGPWR 30
66#define SIGSYS 31
67#define SIGUNUSED 31
68
69/* These should not be considered constants from userland. */
70#define SIGRTMIN 32
71#define SIGRTMAX _NSIG
72
73#define SIGSWI 32
74
75/*
76 * SA_FLAGS values:
77 *
78 * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
79 * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
80 * SA_SIGINFO deliver the signal with SIGINFO structs
81 * SA_THIRTYTWO delivers the signal in 32-bit mode, even if the task
82 * is running in 26-bit.
83 * SA_ONSTACK allows alternate signal stacks (see sigaltstack(2)).
84 * SA_RESTART flag to get restarting signals (which were the default long ago)
85 * SA_INTERRUPT is a no-op, but left due to historical reasons. Use the
86 * SA_NODEFER prevents the current signal from being masked in the handler.
87 * SA_RESETHAND clears the handler when the signal is delivered.
88 *
89 * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
90 * Unix names RESETHAND and NODEFER respectively.
91 */
92#define SA_NOCLDSTOP 0x00000001
93#define SA_NOCLDWAIT 0x00000002 /* not supported yet */
94#define SA_SIGINFO 0x00000004
95#define SA_THIRTYTWO 0x02000000
96#define SA_RESTORER 0x04000000
97#define SA_ONSTACK 0x08000000
98#define SA_RESTART 0x10000000
99#define SA_NODEFER 0x40000000
100#define SA_RESETHAND 0x80000000
101
102#define SA_NOMASK SA_NODEFER
103#define SA_ONESHOT SA_RESETHAND
104#define SA_INTERRUPT 0x20000000 /* dummy -- ignored */
105
106
107/*
108 * sigaltstack controls
109 */
110#define SS_ONSTACK 1
111#define SS_DISABLE 2
112
113#define MINSIGSTKSZ 2048
114#define SIGSTKSZ 8192
115
116#ifdef __KERNEL__
Linus Torvalds1da177e2005-04-16 15:20:36 -0700117#define SA_IRQNOMASK 0x08000000
Linus Torvalds1da177e2005-04-16 15:20:36 -0700118#endif
119
Al Virob1ecb4c2005-05-04 05:40:12 +0100120#include <asm-generic/signal.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -0700121
122#ifdef __KERNEL__
123struct old_sigaction {
124 __sighandler_t sa_handler;
125 old_sigset_t sa_mask;
126 unsigned long sa_flags;
127 void (*sa_restorer)(void);
128};
129
130struct sigaction {
131 __sighandler_t sa_handler;
132 unsigned long sa_flags;
133 void (*sa_restorer)(void);
134 sigset_t sa_mask; /* mask last for extensibility */
135};
136
137struct k_sigaction {
138 struct sigaction sa;
139};
140
141#else
142/* Here we must cater to libcs that poke about in kernel headers. */
143
144struct sigaction {
145 union {
146 __sighandler_t _sa_handler;
147 void (*_sa_sigaction)(int, struct siginfo *, void *);
148 } _u;
149 sigset_t sa_mask;
150 unsigned long sa_flags;
151 void (*sa_restorer)(void);
152};
153
154#define sa_handler _u._sa_handler
155#define sa_sigaction _u._sa_sigaction
156
157#endif /* __KERNEL__ */
158
159typedef struct sigaltstack {
160 void *ss_sp;
161 int ss_flags;
162 size_t ss_size;
163} stack_t;
164
165#ifdef __KERNEL__
166#include <asm/sigcontext.h>
167
168#define sigmask(sig) (1UL << ((sig) - 1))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700169#endif
170
171
172#ifdef __KERNEL__
173#include <asm/sigcontext.h>
174#define ptrace_signal_deliver(regs, cookie) do { } while (0)
175#endif
176
177
178#endif