| lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame] | 1 | /* Signal number constants. Generic version. |
| 2 | Copyright (C) 1991-2015 Free Software Foundation, Inc. |
| 3 | This file is part of the GNU C Library. |
| 4 | |
| 5 | The GNU C Library is free software; you can redistribute it and/or |
| 6 | modify it under the terms of the GNU Lesser General Public |
| 7 | License as published by the Free Software Foundation; either |
| 8 | version 2.1 of the License, or (at your option) any later version. |
| 9 | |
| 10 | The GNU C Library is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | Lesser General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU Lesser General Public |
| 16 | License along with the GNU C Library; if not, see |
| 17 | <http://www.gnu.org/licenses/>. */ |
| 18 | |
| 19 | #ifdef _SIGNAL_H |
| 20 | |
| 21 | /* Fake signal functions. */ |
| 22 | |
| 23 | #define SIG_ERR ((__sighandler_t) -1) /* Error return. */ |
| 24 | #define SIG_DFL ((__sighandler_t) 0) /* Default action. */ |
| 25 | #define SIG_IGN ((__sighandler_t) 1) /* Ignore signal. */ |
| 26 | |
| 27 | #ifdef __USE_UNIX98 |
| 28 | # define SIG_HOLD ((__sighandler_t) 2) /* Add signal to hold mask. */ |
| 29 | #endif |
| 30 | |
| 31 | /* We define here all the signal names listed in POSIX (1003.1-2008); |
| 32 | as of 1003.1-2013, no additional signals have been added by POSIX. |
| 33 | We also define here signal names that historically exist in every |
| 34 | real-world POSIX variant (e.g. SIGWINCH). |
| 35 | |
| 36 | Signals in the 1-15 range are defined with their historical numbers. |
| 37 | For other signals, we use the BSD numbers. */ |
| 38 | |
| 39 | /* ISO C99 signals. */ |
| 40 | #define SIGINT 2 /* Interactive attention signal. */ |
| 41 | #define SIGILL 4 /* Illegal instruction. */ |
| 42 | #define SIGABRT 6 /* Abnormal termination. */ |
| 43 | #define SIGFPE 8 /* Erroneous arithmetic operation. */ |
| 44 | #define SIGSEGV 11 /* Invalid access to storage. */ |
| 45 | #define SIGTERM 15 /* Termination request. */ |
| 46 | |
| 47 | /* Historical signals specified by POSIX. */ |
| 48 | #define SIGHUP 1 /* Hangup. */ |
| 49 | #define SIGQUIT 3 /* Quit. */ |
| 50 | #define SIGTRAP 5 /* Trace/breakpoint trap. */ |
| 51 | #define SIGKILL 9 /* Killed. */ |
| 52 | #define SIGBUS 10 /* Bus error. */ |
| 53 | #define SIGSYS 12 /* Bad system call. */ |
| 54 | #define SIGPIPE 13 /* Broken pipe. */ |
| 55 | #define SIGALRM 14 /* Alarm clock. */ |
| 56 | |
| 57 | /* New(er) POSIX signals (1003.1-2008, 1003.1-2013). */ |
| 58 | #define SIGURG 16 /* High bandwidth data is available at a socket. */ |
| 59 | #define SIGSTOP 17 /* Stopped (signal). */ |
| 60 | #define SIGTSTP 18 /* Stopped. */ |
| 61 | #define SIGCONT 19 /* Continued. */ |
| 62 | #define SIGCHLD 20 /* Child terminated or stopped. */ |
| 63 | #define SIGTTIN 21 /* Background read from control terminal. */ |
| 64 | #define SIGTTOU 22 /* Background write to control terminal. */ |
| 65 | #define SIGPOLL 23 /* Pollable event occurred (System V). */ |
| 66 | #define SIGIO SIGPOLL /* I/O now possible (4.2 BSD). */ |
| 67 | #define SIGXCPU 24 /* CPU time limit exceeded. */ |
| 68 | #define SIGXFSZ 25 /* File size limit exceeded. */ |
| 69 | #define SIGVTALRM 26 /* Virtual timer expired. */ |
| 70 | #define SIGPROF 27 /* Profiling timer expired. */ |
| 71 | #define SIGUSR1 30 /* User-defined signal 1. */ |
| 72 | #define SIGUSR2 31 /* User-defined signal 2. */ |
| 73 | |
| 74 | /* Nonstandard signals found in all modern POSIX systems |
| 75 | (including both BSD and Linux). */ |
| 76 | #define SIGWINCH 28 /* Window size change (4.3 BSD, Sun). */ |
| 77 | |
| 78 | #define _NSIG 32 |
| 79 | |
| 80 | /* Archaic names for compatibility. */ |
| 81 | #define SIGIOT SIGABRT /* IOT instruction, abort() on a PDP-11. */ |
| 82 | #define SIGCLD SIGCHLD /* Old System V name */ |
| 83 | |
| 84 | #endif /* <signal.h> included. */ |