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1da177e4 LT |
1 | /* |
2 | * This file is subject to the terms and conditions of the GNU General Public | |
3 | * License. See the file "COPYING" in the main directory of this archive | |
4 | * for more details. | |
5 | * | |
6 | * Copyright (C) 1995, 96, 97, 98, 99, 2003 by Ralf Baechle | |
7 | * Copyright (C) 1999 Silicon Graphics, Inc. | |
8 | */ | |
9 | #ifndef _ASM_SIGNAL_H | |
10 | #define _ASM_SIGNAL_H | |
11 | ||
1da177e4 LT |
12 | #include <linux/types.h> |
13 | ||
14 | #define _NSIG 128 | |
15 | #define _NSIG_BPW (sizeof(unsigned long) * 8) | |
16 | #define _NSIG_WORDS (_NSIG / _NSIG_BPW) | |
17 | ||
18 | typedef struct { | |
19 | unsigned long sig[_NSIG_WORDS]; | |
20 | } sigset_t; | |
21 | ||
22 | typedef unsigned long old_sigset_t; /* at least 32 bits */ | |
23 | ||
24 | #define SIGHUP 1 /* Hangup (POSIX). */ | |
25 | #define SIGINT 2 /* Interrupt (ANSI). */ | |
26 | #define SIGQUIT 3 /* Quit (POSIX). */ | |
27 | #define SIGILL 4 /* Illegal instruction (ANSI). */ | |
28 | #define SIGTRAP 5 /* Trace trap (POSIX). */ | |
29 | #define SIGIOT 6 /* IOT trap (4.2 BSD). */ | |
30 | #define SIGABRT SIGIOT /* Abort (ANSI). */ | |
31 | #define SIGEMT 7 | |
32 | #define SIGFPE 8 /* Floating-point exception (ANSI). */ | |
33 | #define SIGKILL 9 /* Kill, unblockable (POSIX). */ | |
34 | #define SIGBUS 10 /* BUS error (4.2 BSD). */ | |
35 | #define SIGSEGV 11 /* Segmentation violation (ANSI). */ | |
36 | #define SIGSYS 12 | |
37 | #define SIGPIPE 13 /* Broken pipe (POSIX). */ | |
38 | #define SIGALRM 14 /* Alarm clock (POSIX). */ | |
39 | #define SIGTERM 15 /* Termination (ANSI). */ | |
40 | #define SIGUSR1 16 /* User-defined signal 1 (POSIX). */ | |
41 | #define SIGUSR2 17 /* User-defined signal 2 (POSIX). */ | |
42 | #define SIGCHLD 18 /* Child status has changed (POSIX). */ | |
43 | #define SIGCLD SIGCHLD /* Same as SIGCHLD (System V). */ | |
44 | #define SIGPWR 19 /* Power failure restart (System V). */ | |
45 | #define SIGWINCH 20 /* Window size change (4.3 BSD, Sun). */ | |
46 | #define SIGURG 21 /* Urgent condition on socket (4.2 BSD). */ | |
47 | #define SIGIO 22 /* I/O now possible (4.2 BSD). */ | |
48 | #define SIGPOLL SIGIO /* Pollable event occurred (System V). */ | |
49 | #define SIGSTOP 23 /* Stop, unblockable (POSIX). */ | |
50 | #define SIGTSTP 24 /* Keyboard stop (POSIX). */ | |
51 | #define SIGCONT 25 /* Continue (POSIX). */ | |
52 | #define SIGTTIN 26 /* Background read from tty (POSIX). */ | |
53 | #define SIGTTOU 27 /* Background write to tty (POSIX). */ | |
54 | #define SIGVTALRM 28 /* Virtual alarm clock (4.2 BSD). */ | |
55 | #define SIGPROF 29 /* Profiling alarm clock (4.2 BSD). */ | |
56 | #define SIGXCPU 30 /* CPU limit exceeded (4.2 BSD). */ | |
57 | #define SIGXFSZ 31 /* File size limit exceeded (4.2 BSD). */ | |
58 | ||
59 | /* These should not be considered constants from userland. */ | |
60 | #define SIGRTMIN 32 | |
61 | #define SIGRTMAX _NSIG | |
62 | ||
63 | /* | |
64 | * SA_FLAGS values: | |
65 | * | |
66 | * SA_ONSTACK indicates that a registered stack_t will be used. | |
1da177e4 LT |
67 | * SA_RESTART flag to get restarting signals (which were the default long ago) |
68 | * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop. | |
69 | * SA_RESETHAND clears the handler when the signal is delivered. | |
70 | * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies. | |
71 | * SA_NODEFER prevents the current signal from being masked in the handler. | |
72 | * | |
73 | * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single | |
74 | * Unix names RESETHAND and NODEFER respectively. | |
75 | */ | |
76 | #define SA_ONSTACK 0x08000000 | |
77 | #define SA_RESETHAND 0x80000000 | |
78 | #define SA_RESTART 0x10000000 | |
79 | #define SA_SIGINFO 0x00000008 | |
80 | #define SA_NODEFER 0x40000000 | |
81 | #define SA_NOCLDWAIT 0x00010000 | |
82 | #define SA_NOCLDSTOP 0x00000001 | |
83 | ||
84 | #define SA_NOMASK SA_NODEFER | |
85 | #define SA_ONESHOT SA_RESETHAND | |
1da177e4 LT |
86 | |
87 | #define SA_RESTORER 0x04000000 /* Only for o32 */ | |
88 | ||
89 | /* | |
90 | * sigaltstack controls | |
91 | */ | |
92 | #define SS_ONSTACK 1 | |
93 | #define SS_DISABLE 2 | |
94 | ||
95 | #define MINSIGSTKSZ 2048 | |
96 | #define SIGSTKSZ 8192 | |
97 | ||
e50c0a8f RB |
98 | #ifdef __KERNEL__ |
99 | ||
e50c0a8f RB |
100 | #ifdef CONFIG_TRAD_SIGNALS |
101 | #define sig_uses_siginfo(ka) ((ka)->sa.sa_flags & SA_SIGINFO) | |
102 | #else | |
103 | #define sig_uses_siginfo(ka) (1) | |
104 | #endif | |
105 | ||
106 | #endif /* __KERNEL__ */ | |
107 | ||
1da177e4 LT |
108 | #define SIG_BLOCK 1 /* for blocking signals */ |
109 | #define SIG_UNBLOCK 2 /* for unblocking signals */ | |
110 | #define SIG_SETMASK 3 /* for setting the signal mask */ | |
e50c0a8f | 111 | |
6b3e5f44 | 112 | #include <asm-generic/signal.h> |
1da177e4 LT |
113 | |
114 | struct sigaction { | |
115 | unsigned int sa_flags; | |
116 | __sighandler_t sa_handler; | |
117 | sigset_t sa_mask; | |
118 | }; | |
119 | ||
120 | struct k_sigaction { | |
121 | struct sigaction sa; | |
1da177e4 LT |
122 | }; |
123 | ||
124 | /* IRIX compatible stack_t */ | |
125 | typedef struct sigaltstack { | |
9c6031cc | 126 | void __user *ss_sp; |
1da177e4 LT |
127 | size_t ss_size; |
128 | int ss_flags; | |
129 | } stack_t; | |
130 | ||
131 | #ifdef __KERNEL__ | |
132 | #include <asm/sigcontext.h> | |
9c6031cc | 133 | #include <asm/siginfo.h> |
1da177e4 | 134 | |
1da177e4 LT |
135 | #define ptrace_signal_deliver(regs, cookie) do { } while (0) |
136 | ||
137 | #endif /* __KERNEL__ */ | |
138 | ||
139 | #endif /* _ASM_SIGNAL_H */ |