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 * SA_RESTORER used to be defined as 0x04000000 but only the O32 ABI ever 77 * supported its use and no libc was using it, so the entire sa-restorer 78 * functionality was removed with lmo commit 39bffc12c3580ab for 2.5.48 79 * retaining only the SA_RESTORER definition as a reminder to avoid 80 * accidental reuse of the mask bit. 81 */ 82#define SA_ONSTACK 0x08000000 83#define SA_RESETHAND 0x80000000 84#define SA_RESTART 0x10000000 85#define SA_SIGINFO 0x00000008 86#define SA_NODEFER 0x40000000 87#define SA_NOCLDWAIT 0x00010000 88#define SA_NOCLDSTOP 0x00000001 89 90#define SA_NOMASK SA_NODEFER 91#define SA_ONESHOT SA_RESETHAND 92 93#define MINSIGSTKSZ 2048 94#define SIGSTKSZ 8192 95 96 97#define SIG_BLOCK 1 /* for blocking signals */ 98#define SIG_UNBLOCK 2 /* for unblocking signals */ 99#define SIG_SETMASK 3 /* for setting the signal mask */ 100 101#include <asm-generic/signal-defs.h> 102 103#ifndef __KERNEL__ 104struct sigaction { 105 unsigned int sa_flags; 106 __sighandler_t sa_handler; 107 sigset_t sa_mask; 108}; 109#endif 110 111/* IRIX compatible stack_t */ 112typedef struct sigaltstack { 113 void __user *ss_sp; 114 size_t ss_size; 115 int ss_flags; 116} stack_t; 117 118 119#endif /* _UAPI_ASM_SIGNAL_H */ 120