Root/include/asm-generic/signal.h

1#ifndef __ASM_GENERIC_SIGNAL_H
2#define __ASM_GENERIC_SIGNAL_H
3
4#include <linux/types.h>
5
6#define _NSIG 64
7#define _NSIG_BPW __BITS_PER_LONG
8#define _NSIG_WORDS (_NSIG / _NSIG_BPW)
9
10#define SIGHUP 1
11#define SIGINT 2
12#define SIGQUIT 3
13#define SIGILL 4
14#define SIGTRAP 5
15#define SIGABRT 6
16#define SIGIOT 6
17#define SIGBUS 7
18#define SIGFPE 8
19#define SIGKILL 9
20#define SIGUSR1 10
21#define SIGSEGV 11
22#define SIGUSR2 12
23#define SIGPIPE 13
24#define SIGALRM 14
25#define SIGTERM 15
26#define SIGSTKFLT 16
27#define SIGCHLD 17
28#define SIGCONT 18
29#define SIGSTOP 19
30#define SIGTSTP 20
31#define SIGTTIN 21
32#define SIGTTOU 22
33#define SIGURG 23
34#define SIGXCPU 24
35#define SIGXFSZ 25
36#define SIGVTALRM 26
37#define SIGPROF 27
38#define SIGWINCH 28
39#define SIGIO 29
40#define SIGPOLL SIGIO
41/*
42#define SIGLOST 29
43*/
44#define SIGPWR 30
45#define SIGSYS 31
46#define SIGUNUSED 31
47
48/* These should not be considered constants from userland. */
49#define SIGRTMIN 32
50#ifndef SIGRTMAX
51#define SIGRTMAX _NSIG
52#endif
53
54/*
55 * SA_FLAGS values:
56 *
57 * SA_ONSTACK indicates that a registered stack_t will be used.
58 * SA_RESTART flag to get restarting signals (which were the default long ago)
59 * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
60 * SA_RESETHAND clears the handler when the signal is delivered.
61 * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
62 * SA_NODEFER prevents the current signal from being masked in the handler.
63 *
64 * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
65 * Unix names RESETHAND and NODEFER respectively.
66 */
67#define SA_NOCLDSTOP 0x00000001
68#define SA_NOCLDWAIT 0x00000002
69#define SA_SIGINFO 0x00000004
70#define SA_ONSTACK 0x08000000
71#define SA_RESTART 0x10000000
72#define SA_NODEFER 0x40000000
73#define SA_RESETHAND 0x80000000
74
75#define SA_NOMASK SA_NODEFER
76#define SA_ONESHOT SA_RESETHAND
77
78/*
79 * New architectures should not define the obsolete
80 * SA_RESTORER 0x04000000
81 */
82
83/*
84 * sigaltstack controls
85 */
86#define SS_ONSTACK 1
87#define SS_DISABLE 2
88
89#define MINSIGSTKSZ 2048
90#define SIGSTKSZ 8192
91
92#ifndef __ASSEMBLY__
93typedef struct {
94    unsigned long sig[_NSIG_WORDS];
95} sigset_t;
96
97/* not actually used, but required for linux/syscalls.h */
98typedef unsigned long old_sigset_t;
99
100#include <asm-generic/signal-defs.h>
101
102struct sigaction {
103    __sighandler_t sa_handler;
104    unsigned long sa_flags;
105#ifdef SA_RESTORER
106    __sigrestore_t sa_restorer;
107#endif
108    sigset_t sa_mask; /* mask last for extensibility */
109};
110
111struct k_sigaction {
112    struct sigaction sa;
113};
114
115typedef struct sigaltstack {
116    void __user *ss_sp;
117    int ss_flags;
118    size_t ss_size;
119} stack_t;
120
121#ifdef __KERNEL__
122
123#include <asm/sigcontext.h>
124#undef __HAVE_ARCH_SIG_BITOPS
125
126#define ptrace_signal_deliver(regs, cookie) do { } while (0)
127
128#endif /* __KERNEL__ */
129#endif /* __ASSEMBLY__ */
130
131#endif /* _ASM_GENERIC_SIGNAL_H */
132

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