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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 | /* $Id: signal.h,v 1.5 1998/08/25 09:22:01 ralf Exp $ * * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive * for more details. * * Copyright (C) 1995, 1996, 1997, 1998 by Ralf Baechle */ #ifndef __ASM_MIPS_SIGNAL_H #define __ASM_MIPS_SIGNAL_H #include <linux/types.h> #define _NSIG 128 #define _NSIG_BPW 32 #define _NSIG_WORDS (_NSIG / _NSIG_BPW) typedef struct { unsigned long sig[_NSIG_WORDS]; } sigset_t; typedef unsigned long old_sigset_t; /* at least 32 bits */ #define SIGHUP 1 /* Hangup (POSIX). */ #define SIGINT 2 /* Interrupt (ANSI). */ #define SIGQUIT 3 /* Quit (POSIX). */ #define SIGILL 4 /* Illegal instruction (ANSI). */ #define SIGTRAP 5 /* Trace trap (POSIX). */ #define SIGIOT 6 /* IOT trap (4.2 BSD). */ #define SIGABRT SIGIOT /* Abort (ANSI). */ #define SIGEMT 7 #define SIGFPE 8 /* Floating-point exception (ANSI). */ #define SIGKILL 9 /* Kill, unblockable (POSIX). */ #define SIGBUS 10 /* BUS error (4.2 BSD). */ #define SIGSEGV 11 /* Segmentation violation (ANSI). */ #define SIGSYS 12 #define SIGPIPE 13 /* Broken pipe (POSIX). */ #define SIGALRM 14 /* Alarm clock (POSIX). */ #define SIGTERM 15 /* Termination (ANSI). */ #define SIGUSR1 16 /* User-defined signal 1 (POSIX). */ #define SIGUSR2 17 /* User-defined signal 2 (POSIX). */ #define SIGCHLD 18 /* Child status has changed (POSIX). */ #define SIGCLD SIGCHLD /* Same as SIGCHLD (System V). */ #define SIGPWR 19 /* Power failure restart (System V). */ #define SIGWINCH 20 /* Window size change (4.3 BSD, Sun). */ #define SIGURG 21 /* Urgent condition on socket (4.2 BSD). */ #define SIGIO 22 /* I/O now possible (4.2 BSD). */ #define SIGPOLL SIGIO /* Pollable event occurred (System V). */ #define SIGSTOP 23 /* Stop, unblockable (POSIX). */ #define SIGTSTP 24 /* Keyboard stop (POSIX). */ #define SIGCONT 25 /* Continue (POSIX). */ #define SIGTTIN 26 /* Background read from tty (POSIX). */ #define SIGTTOU 27 /* Background write to tty (POSIX). */ #define SIGVTALRM 28 /* Virtual alarm clock (4.2 BSD). */ #define SIGPROF 29 /* Profiling alarm clock (4.2 BSD). */ #define SIGXCPU 30 /* CPU limit exceeded (4.2 BSD). */ #define SIGXFSZ 31 /* File size limit exceeded (4.2 BSD). */ /* These should not be considered constants from userland. */ #define SIGRTMIN 32 #define SIGRTMAX (_NSIG-1) /* * SA_FLAGS values: * * SA_ONSTACK indicates that a registered stack_t will be used. * SA_INTERRUPT is a no-op, but left due to historical reasons. Use the * SA_RESTART flag to get restarting signals (which were the default long ago) * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop. * SA_RESETHAND clears the handler when the signal is delivered. * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies. * SA_NODEFER prevents the current signal from being masked in the handler. * * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single * Unix names RESETHAND and NODEFER respectively. */ #define SA_STACK 0x00000001 #define SA_RESETHAND 0x00000002 #define SA_RESTART 0x00000004 #define SA_SIGINFO 0x00000008 #define SA_NODEFER 0x00000010 #define SA_NOCLDWAIT 0x00010000 /* Not supported yet */ #define SA_NOCLDSTOP 0x00020000 #define SA_NOMASK SA_NODEFER #define SA_ONESHOT SA_RESETHAND /* * sigaltstack controls */ #define SS_ONSTACK 1 #define SS_DISABLE 2 #define MINSIGSTKSZ 2048 #define SIGSTKSZ 8192 #ifdef __KERNEL__ /* * These values of sa_flags are used only by the kernel as part of the * irq handling routines. * * SA_INTERRUPT is a no-op, but left due to historical reasons. Use the * SA_RESTART flag to get restarting signals (which were the default long ago) * SA_SHIRQ flag is for shared interrupt support on PCI and EISA. */ #define SA_INTERRUPT 0x01000000 /* interrupt handling */ #define SA_SHIRQ 0x08000000 #define SA_PROBE SA_ONESHOT #define SA_SAMPLE_RANDOM SA_RESTART #endif /* __KERNEL__ */ #define SIG_BLOCK 1 /* for blocking signals */ #define SIG_UNBLOCK 2 /* for unblocking signals */ #define SIG_SETMASK 3 /* for setting the signal mask */ #define SIG_SETMASK32 256 /* Goodie from SGI for BSD compatibility: set only the low 32 bit of the sigset. */ /* Type of a signal handler. */ typedef void (*__sighandler_t)(int); /* Fake signal functions */ #define SIG_DFL ((__sighandler_t)0) /* default signal handling */ #define SIG_IGN ((__sighandler_t)1) /* ignore signal */ #define SIG_ERR ((__sighandler_t)-1) /* error return from signal */ struct sigaction { unsigned int sa_flags; __sighandler_t sa_handler; sigset_t sa_mask; int sa_resv[2]; /* reserved */ }; /* XXX use sa_rev for storing ka_restorer */ struct k_sigaction { struct sigaction sa; void (*ka_restorer)(void); }; /* IRIX compatible stack_t */ typedef struct sigaltstack { void *ss_sp; size_t ss_size; int ss_flags; } stack_t; #ifdef __KERNEL__ #include <asm/sigcontext.h> #endif #if defined (__KERNEL__) || defined (__USE_MISC) /* * The following break codes are or were in use for specific purposes in * other MIPS operating systems. Linux/MIPS doesn't use all of them. The * unused ones are here as placeholders; we might encounter them in * non-Linux/MIPS object files or make use of them in the future. */ #define BRK_USERBP 0 /* User bp (used by debuggers) */ #define BRK_KERNELBP 1 /* Break in the kernel */ #define BRK_ABORT 2 /* Sometimes used by abort(3) to SIGIOT */ #define BRK_BD_TAKEN 3 /* For bd slot emulation - not implemented */ #define BRK_BD_NOTTAKEN 4 /* For bd slot emulation - not implemented */ #define BRK_SSTEPBP 5 /* User bp (used by debuggers) */ #define BRK_OVERFLOW 6 /* Overflow check */ #define BRK_DIVZERO 7 /* Divide by zero check */ #define BRK_RANGE 8 /* Range error check */ #define BRK_STACKOVERFLOW 9 /* For Ada stackchecking */ #define BRK_NORLD 10 /* No rld found - not used by Linux/MIPS */ #define _BRK_THREADBP 11 /* For threads, user bp (used by debuggers) */ #define BRK_MULOVF 1023 /* Multiply overflow */ #endif /* defined (__KERNEL__) || defined (__USE_MISC) */ #endif /* !defined (__ASM_MIPS_SIGNAL_H) */ |