tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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 _UAPI_ASM_SIGNAL_H
10#define _UAPI_ASM_SIGNAL_H
11
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
18typedef struct {
19 unsigned long sig[_NSIG_WORDS];
20} sigset_t;
21
22typedef 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.
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
86
87#define SA_RESTORER 0x04000000 /* Only for o32 */
88
89#define MINSIGSTKSZ 2048
90#define SIGSTKSZ 8192
91
92
93#define SIG_BLOCK 1 /* for blocking signals */
94#define SIG_UNBLOCK 2 /* for unblocking signals */
95#define SIG_SETMASK 3 /* for setting the signal mask */
96
97#include <asm-generic/signal-defs.h>
98
99struct sigaction {
100 unsigned int sa_flags;
101 __sighandler_t sa_handler;
102 sigset_t sa_mask;
103};
104
105struct k_sigaction {
106 struct sigaction sa;
107};
108
109/* IRIX compatible stack_t */
110typedef struct sigaltstack {
111 void __user *ss_sp;
112 size_t ss_size;
113 int ss_flags;
114} stack_t;
115
116
117#endif /* _UAPI_ASM_SIGNAL_H */