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 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/* 90 * sigaltstack controls 91 */ 92#define SS_ONSTACK 1 93#define SS_DISABLE 2 94 95#define MINSIGSTKSZ 2048 96#define SIGSTKSZ 8192 97 98#ifdef __KERNEL__ 99 100#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__ */ 107 108#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 */ 111 112#include <asm-generic/signal.h> 113 114struct sigaction { 115 unsigned int sa_flags; 116 __sighandler_t sa_handler; 117 sigset_t sa_mask; 118}; 119 120struct k_sigaction { 121 struct sigaction sa; 122#ifdef CONFIG_BINFMT_IRIX 123 void (*sa_restorer)(void); 124#endif 125}; 126 127/* IRIX compatible stack_t */ 128typedef struct sigaltstack { 129 void __user *ss_sp; 130 size_t ss_size; 131 int ss_flags; 132} stack_t; 133 134#ifdef __KERNEL__ 135#include <asm/sigcontext.h> 136#include <asm/siginfo.h> 137 138#define ptrace_signal_deliver(regs, cookie) do { } while (0) 139 140#endif /* __KERNEL__ */ 141 142#endif /* _ASM_SIGNAL_H */ 143