00001 /* 00002 * Copyright (c) 1982, 1986, 1989, 1991, 1993 00003 * The Regents of the University of California. All rights reserved. 00004 * (c) UNIX System Laboratories, Inc. 00005 * All or some portions of this file are derived from material licensed 00006 * to the University of California by American Telephone and Telegraph 00007 * Co. or Unix System Laboratories, Inc. and are reproduced herein with 00008 * the permission of UNIX System Laboratories, Inc. 00009 * 00010 * Redistribution and use in source and binary forms, with or without 00011 * modification, are permitted provided that the following conditions 00012 * are met: 00013 * 1. Redistributions of source code must retain the above copyright 00014 * notice, this list of conditions and the following disclaimer. 00015 * 2. Redistributions in binary form must reproduce the above copyright 00016 * notice, this list of conditions and the following disclaimer in the 00017 * documentation and/or other materials provided with the distribution. 00018 * 3. Neither the name of the University nor the names of its contributors 00019 * may be used to endorse or promote products derived from this software 00020 * without specific prior written permission. 00021 * 00022 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 00023 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00024 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00025 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 00026 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 00027 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 00028 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 00029 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 00030 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 00031 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 00032 * SUCH DAMAGE. 00033 * 00034 * @(#)signal.h 8.4 (Berkeley) 5/4/95 00035 */ 00036 00037 #ifndef _KERN_SIGNAL_H_ 00038 #define _KERN_SIGNAL_H_ 00039 00040 /* 00041 * Machine-independent definitions for signals. 00042 */ 00043 00044 00045 /* 00046 * The signals. 00047 * 00048 * The values of many of these are "well known", particularly 1, 9, 00049 * 10, and 11. 00050 * 00051 * Note that Unix signals are a semantic cesspool; many have special 00052 * properties or are supposed to interact with the system in special 00053 * ways. It is gross. 00054 */ 00055 00056 #define SIGHUP 1 /* Hangup */ 00057 #define SIGINT 2 /* Interrupt (^C) */ 00058 #define SIGQUIT 3 /* Quit (typically ^\) */ 00059 #define SIGILL 4 /* Illegal instruction */ 00060 #define SIGTRAP 5 /* Breakpoint trap */ 00061 #define SIGABRT 6 /* abort() call */ 00062 #define SIGEMT 7 /* Emulator trap */ 00063 #define SIGFPE 8 /* Floating point exception */ 00064 #define SIGKILL 9 /* Hard kill (unblockable) */ 00065 #define SIGBUS 10 /* Bus error, typically bad pointer alignment*/ 00066 #define SIGSEGV 11 /* Segmentation fault */ 00067 #define SIGSYS 12 /* Bad system call */ 00068 #define SIGPIPE 13 /* Broken pipe */ 00069 #define SIGALRM 14 /* alarm() expired */ 00070 #define SIGTERM 15 /* Termination requested (default kill) */ 00071 #define SIGURG 16 /* Urgent data on socket */ 00072 #define SIGSTOP 17 /* Hard process stop (unblockable) */ 00073 #define SIGTSTP 18 /* Terminal stop (^Z) */ 00074 #define SIGCONT 19 /* Time to continue after stop */ 00075 #define SIGCHLD 20 /* Child process exited */ 00076 #define SIGTTIN 21 /* Stop on tty read while in background */ 00077 #define SIGTTOU 22 /* Stop on tty write while in background */ 00078 #define SIGIO 23 /* Nonblocking or async I/O is now ready */ 00079 #define SIGXCPU 24 /* CPU time resource limit exceeded */ 00080 #define SIGXFSZ 25 /* File size resource limit exceeded */ 00081 #define SIGVTALRM 26 /* Like SIGALRM but in virtual time */ 00082 #define SIGPROF 27 /* Profiling timer */ 00083 #define SIGWINCH 28 /* Window size change on tty */ 00084 #define SIGINFO 29 /* Information request (typically ^T) */ 00085 #define SIGUSR1 20 /* Application-defined */ 00086 #define SIGUSR2 31 /* Application-defined */ 00087 #define SIGPWR 32 /* Power failure */ 00088 #define _NSIG 32 00089 00090 00091 /* Type for a set of signals; used by e.g. sigprocmask(). */ 00092 typedef __u32 sigset_t; 00093 00094 /* flags for sigaction.sa_flags */ 00095 #define SA_ONSTACK 1 /* Use sigaltstack() stack. */ 00096 #define SA_RESTART 2 /* Restart syscall instead of interrupting. */ 00097 #define SA_RESETHAND 4 /* Clear handler after one usage. */ 00098 00099 /* codes for sigprocmask() */ 00100 #define SIG_BLOCK 1 /* Block selected signals. */ 00101 #define SIG_UNBLOCK 2 /* Unblock selected signals. */ 00102 #define SIG_SETMASK 3 /* Set mask to the selected signals. */ 00103 00104 /* Type for a signal handler function. */ 00105 typedef void (*__sigfunc)(int); 00106 00107 /* Magic values for signal handlers. */ 00108 #define SIG_DFL ((__sigfunc) 0) /* Default behavior. */ 00109 #define SIG_IGN ((__sigfunc) 1) /* Ignore the signal. */ 00110 00111 /* 00112 * Struct for sigaction(). 00113 */ 00114 struct sigaction { 00115 __sigfunc sa_handler; 00116 sigset_t sa_mask; 00117 unsigned sa_flags; 00118 }; 00119 00120 /* 00121 * Struct for sigaltstack(). 00122 * (not very important) 00123 */ 00124 struct sigaltstack { 00125 void *ss_sp; 00126 size_t ss_size; 00127 unsigned ss_flags; 00128 }; 00129 00130 00131 #endif /* _KERN_SIGNAL_H_ */