1 /*
2 * include/asm-xtensa/signal.h
3 *
4 * Swiped from SH.
5 *
6 * This file is subject to the terms and conditions of the GNU General Public
7 * License. See the file "COPYING" in the main directory of this archive
8 * for more details.
9 *
10 * Copyright (C) 2001 - 2005 Tensilica Inc.
11 */
12
13 #ifndef _UAPI_XTENSA_SIGNAL_H
14 #define _UAPI_XTENSA_SIGNAL_H
15
16
17 #define _NSIG 64
18 #define _NSIG_BPW 32
19 #define _NSIG_WORDS (_NSIG / _NSIG_BPW)
20
21 #ifndef __ASSEMBLY__
22
23 #include <linux/types.h>
24
25 /* Avoid too many header ordering problems. */
26 struct siginfo;
27 typedef unsigned long old_sigset_t; /* at least 32 bits */
28 typedef struct {
29 unsigned long sig[_NSIG_WORDS];
30 } sigset_t;
31
32 #endif
33
34 #define SIGHUP 1
35 #define SIGINT 2
36 #define SIGQUIT 3
37 #define SIGILL 4
38 #define SIGTRAP 5
39 #define SIGABRT 6
40 #define SIGIOT 6
41 #define SIGBUS 7
42 #define SIGFPE 8
43 #define SIGKILL 9
44 #define SIGUSR1 10
45 #define SIGSEGV 11
46 #define SIGUSR2 12
47 #define SIGPIPE 13
48 #define SIGALRM 14
49 #define SIGTERM 15
50 #define SIGSTKFLT 16
51 #define SIGCHLD 17
52 #define SIGCONT 18
53 #define SIGSTOP 19
54 #define SIGTSTP 20
55 #define SIGTTIN 21
56 #define SIGTTOU 22
57 #define SIGURG 23
58 #define SIGXCPU 24
59 #define SIGXFSZ 25
60 #define SIGVTALRM 26
61 #define SIGPROF 27
62 #define SIGWINCH 28
63 #define SIGIO 29
64 #define SIGPOLL SIGIO
65 /* #define SIGLOST 29 */
66 #define SIGPWR 30
67 #define SIGSYS 31
68 #define SIGUNUSED 31
69
70 /* These should not be considered constants from userland. */
71 #define SIGRTMIN 32
72 #define SIGRTMAX (_NSIG-1)
73
74 /*
75 * SA_FLAGS values:
76 *
77 * SA_ONSTACK indicates that a registered stack_t will be used.
78 * SA_RESTART flag to get restarting signals (which were the default long ago)
79 * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
80 * SA_RESETHAND clears the handler when the signal is delivered.
81 * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
82 * SA_NODEFER prevents the current signal from being masked in the handler.
83 *
84 * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
85 * Unix names RESETHAND and NODEFER respectively.
86 */
87 #define SA_NOCLDSTOP 0x00000001
88 #define SA_NOCLDWAIT 0x00000002 /* not supported yet */
89 #define SA_SIGINFO 0x00000004
90 #define SA_ONSTACK 0x08000000
91 #define SA_RESTART 0x10000000
92 #define SA_NODEFER 0x40000000
93 #define SA_RESETHAND 0x80000000
94
95 #define SA_NOMASK SA_NODEFER
96 #define SA_ONESHOT SA_RESETHAND
97
98 #define SA_RESTORER 0x04000000
99
100 #define MINSIGSTKSZ 2048
101 #define SIGSTKSZ 8192
102
103 #ifndef __ASSEMBLY__
104
105 #include <asm-generic/signal-defs.h>
106
107 #ifndef __KERNEL__
108
109 /* Here we must cater to libcs that poke about in kernel headers. */
110
111 struct sigaction {
112 union {
113 __sighandler_t _sa_handler;
114 void (*_sa_sigaction)(int, struct siginfo *, void *);
115 } _u;
116 sigset_t sa_mask;
117 unsigned long sa_flags;
118 void (*sa_restorer)(void);
119 };
120
121 #define sa_handler _u._sa_handler
122 #define sa_sigaction _u._sa_sigaction
123
124 #endif /* __KERNEL__ */
125
126 typedef struct sigaltstack {
127 void *ss_sp;
128 int ss_flags;
129 size_t ss_size;
130 } stack_t;
131
132 #endif /* __ASSEMBLY__ */
133 #endif /* _UAPI_XTENSA_SIGNAL_H */
134
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