1 /* 2 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 3 * Use is subject to license terms. 4 */ 5 6 /* 7 * Copyright (c) 1982 Regents of the University of California. 8 * All rights reserved. The Berkeley software License Agreement 9 * specifies the terms and conditions for redistribution. 10 */ 11 12 #ifndef __sys_signal_h 13 #define __sys_signal_h 14 15 #pragma ident "%Z%%M% %I% %E% SMI" 16 17 #include <vm/faultcode.h> 18 #define NSIG 32 19 20 /* 21 * If any signal defines (SIG*) are added, deleted, or changed, the same 22 * changes must be made in /usr/include/signal.h as well. 23 */ 24 #define SIGHUP 1 /* hangup */ 25 #define SIGINT 2 /* interrupt */ 26 #define SIGQUIT 3 /* quit */ 27 #define SIGILL 4 /* illegal instruction (not reset when caught) */ 28 29 #define ILL_STACK 0x00 /* bad stack */ 30 #define ILL_ILLINSTR_FAULT 0x02 /* illegal instruction fault */ 31 #define ILL_PRIVINSTR_FAULT 0x03 /* privileged instruction fault */ 32 /* codes from 0x80 to 0xff are software traps */ 33 #define ILL_TRAP_FAULT(n) ((n)+0x80) /* trap n fault */ 34 35 #define SIGTRAP 5 /* trace trap (not reset when caught) */ 36 #define SIGIOT 6 /* IOT instruction */ 37 #define SIGABRT 6 /* used by abort, replace SIGIOT in the future */ 38 #define SIGEMT 7 /* EMT instruction */ 39 40 #define EMT_TAG 0x0a /* tag overflow */ 41 42 #define SIGFPE 8 /* floating point exception */ 43 44 #define FPE_INTOVF_TRAP 0x1 /* integer overflow */ 45 #define FPE_STARTSIG_TRAP 0x2 /* process using fp */ 46 #define FPE_INTDIV_TRAP 0x14 /* integer divide by zero */ 47 #define FPE_FLTINEX_TRAP 0xc4 /* [floating inexact result] */ 48 #define FPE_FLTDIV_TRAP 0xc8 /* [floating divide by zero] */ 49 #define FPE_FLTUND_TRAP 0xcc /* [floating underflow] */ 50 #define FPE_FLTOPERR_TRAP 0xd0 /* [floating operand error] */ 51 #define FPE_FLTOVF_TRAP 0xd4 /* [floating overflow] */ 52 53 #define SIGKILL 9 /* kill (cannot be caught or ignored) */ 54 /* 55 * The codes for SIGBUS and SIGSEGV are described in <vm/faultcode.h> 56 */ 57 #define SIGBUS 10 /* bus error */ 58 #define BUS_HWERR FC_HWERR /* misc hardware error (e.g. timeout) */ 59 #define BUS_ALIGN FC_ALIGN /* hardware alignment error */ 60 #define BUS_OBJERR FC_OBJERR /* object returned errno value */ 61 /* 62 * The BUS_CODE(code) will be one of the above. In the BUS_OBJERR case, 63 * doing a BUS_ERRNO(code) gives an errno value reported by the underlying 64 * file object mapped at the fault address. Note that this appears to be 65 * duplicated with the segmentation fault case below -- unfortunate, since 66 * the specification has always claimed that such errors produce SIGBUS. 67 * The segmentation cases are left defined as a transition aid. 68 */ 69 #define BUS_CODE(C) FC_CODE(C) 70 #define BUS_ERRNO(C) FC_ERRNO(C) 71 #define SIGSEGV 11 /* segmentation violation */ 72 #define SEGV_NOMAP FC_NOMAP /* no mapping at the fault address */ 73 #define SEGV_PROT FC_PROT /* access exceeded protections */ 74 #define SEGV_OBJERR FC_OBJERR /* object returned errno value */ 75 /* 76 * The SEGV_CODE(code) will be SEGV_NOMAP, SEGV_PROT, or SEGV_OBJERR. 77 * In the SEGV_OBJERR case, doing a SEGV_ERRNO(code) gives an errno value 78 * reported by the underlying file object mapped at the fault address. 79 */ 80 #define SEGV_CODE(C) FC_CODE(C) 81 #define SEGV_ERRNO(C) FC_ERRNO(C) 82 #define SIGSYS 12 /* bad argument to system call */ 83 #define SIGPIPE 13 /* write on a pipe with no one to read it */ 84 #define SIGALRM 14 /* alarm clock */ 85 #define SIGTERM 15 /* software termination signal from kill */ 86 #define SIGURG 16 /* urgent condition on IO channel */ 87 #define SIGSTOP 17 /* sendable stop signal not from tty */ 88 #define SIGTSTP 18 /* stop signal from tty */ 89 #define SIGCONT 19 /* continue a stopped process */ 90 #define SIGCHLD 20 /* to parent on child stop or exit */ 91 #define SIGCLD 20 /* System V name for SIGCHLD */ 92 #define SIGTTIN 21 /* to readers pgrp upon background tty read */ 93 #define SIGTTOU 22 /* like TTIN for output if (tp->t_local<OSTOP) */ 94 #define SIGIO 23 /* input/output possible signal */ 95 #define SIGPOLL SIGIO /* System V name for SIGIO */ 96 #define SIGXCPU 24 /* exceeded CPU time limit */ 97 #define SIGXFSZ 25 /* exceeded file size limit */ 98 #define SIGVTALRM 26 /* virtual time alarm */ 99 #define SIGPROF 27 /* profiling time alarm */ 100 #define SIGWINCH 28 /* window changed */ 101 #define SIGLOST 29 /* resource lost (eg, record-lock lost) */ 102 #define SIGUSR1 30 /* user defined signal 1 */ 103 #define SIGUSR2 31 /* user defined signal 2 */ 104 /* 105 * If addr cannot be computed it is set to SIG_NOADDR. 106 */ 107 #define SIG_NOADDR ((char *)~0) 108 109 #if !defined(KERNEL) && !defined(LOCORE) 110 void (*signal())(); 111 /* 112 * Define BSD 4.1 reliable signals for SVID compatibility. 113 * These functions may go away in a future release. 114 */ 115 void (*sigset())(); 116 int sighold(); 117 int sigrelse(); 118 int sigignore(); 119 #endif /* !KERNEL && !LOCORE */ 120 121 #ifndef LOCORE 122 /* 123 * Signal vector "template" used in sigvec call. 124 */ 125 struct sigvec { 126 void (*sv_handler)(); /* signal handler */ 127 int sv_mask; /* signal mask to apply */ 128 int sv_flags; /* see signal options below */ 129 }; 130 #define SV_ONSTACK 0x0001 /* take signal on signal stack */ 131 #define SV_INTERRUPT 0x0002 /* do not restart system on signal return */ 132 #define SV_RESETHAND 0x0004 /* reset signal handler to SIG_DFL when signal taken */ 133 /* 134 * If any SA_NOCLDSTOP or SV_NOCLDSTOP is change, the same 135 * changes must be made in /usr/include/signal.h as well. 136 */ 137 #define SV_NOCLDSTOP 0x0008 /* don't send a SIGCHLD on child stop */ 138 #define SA_ONSTACK SV_ONSTACK 139 #define SA_INTERRUPT SV_INTERRUPT 140 #define SA_RESETHAND SV_RESETHAND 141 142 #define SA_NOCLDSTOP SV_NOCLDSTOP 143 #define sv_onstack sv_flags /* isn't compatibility wonderful! */ 144 145 /* 146 * Structure used in sigstack call. 147 */ 148 struct sigstack { 149 char *ss_sp; /* signal stack pointer */ 150 int ss_onstack; /* current status */ 151 }; 152 153 /* 154 * Information pushed on stack when a signal is delivered. 155 * This is used by the kernel to restore state following 156 * execution of the signal handler. It is also made available 157 * to the handler to allow it to properly restore state if 158 * a non-standard exit is performed. 159 */ 160 struct sigcontext { 161 int sc_onstack; /* sigstack state to restore */ 162 int sc_mask; /* signal mask to restore */ 163 #define SPARC_MAXREGWINDOW 31 /* max usable windows in sparc */ 164 int sc_sp; /* sp to restore */ 165 int sc_pc; /* pc to retore */ 166 int sc_npc; /* next pc to restore */ 167 int sc_psr; /* psr to restore */ 168 int sc_g1; /* register that must be restored */ 169 int sc_o0; 170 int sc_wbcnt; /* number of outstanding windows */ 171 char *sc_spbuf[SPARC_MAXREGWINDOW]; /* sp's for each wbuf */ 172 int sc_wbuf[SPARC_MAXREGWINDOW][16]; /* window save buf */ 173 }; 174 #endif /* !LOCORE */ 175 176 #define BADSIG (void (*)())-1 177 178 /* 179 * If SIG_ERR, SIG_DFL, SIG_IGN, or SIG_HOLD are changed, the same changes 180 * must be made in /usr/include/signal.h as well. 181 */ 182 #define SIG_ERR (void (*)())-1 183 #define SIG_DFL (void (*)())0 184 #define SIG_IGN (void (*)())1 185 186 #define SIG_HOLD (void (*)())3 187 188 /* 189 * Macro for converting signal number to a mask suitable for sigblock(). 190 */ 191 #define sigmask(m) (1 << ((m)-1)) 192 /* 193 * signals that can't caught, blocked, or ignored 194 */ 195 196 /* 197 * If SIG_BLOCK, SIG_UNBLOCK, or SIG_SETMASK are changed, the same changes 198 * must be made in /usr/include/signal.h as well. 199 */ 200 #define SIG_BLOCK 0x0001 201 #define SIG_UNBLOCK 0x0002 202 #define SIG_SETMASK 0x0004 203 204 #if !defined(LOCORE) && !defined(KERNEL) 205 206 /* 207 * If changes are made to sigset_t or struct sigaction, the same changes 208 * must be made in /usr/include/signal.h as well. 209 */ 210 #include <sys/stdtypes.h> 211 212 struct sigaction { 213 void (*sa_handler)(); 214 sigset_t sa_mask; 215 int sa_flags; 216 }; 217 218 /* 219 * If changes are made to the function prototypes, the same changes 220 * must be made in /usr/include/signal.h as well. 221 */ 222 void (*signal())(); 223 int kill(/* pid_t p, int sig */); 224 int sigaction(/* int signo, 225 struct sigaction *act, struct sigaction *oldact */); 226 int sigaddset(/* sigset_t *mask, int signo */); 227 int sigdelset(/* sigset_t *mask, int signo */); 228 int sigemptyset(/* sigset_t *mask */); 229 int sigfillset(/* sigset_t *mask */); 230 int sigismember(/* sigset_t *mask, int signo */); 231 int sigpending(/* sigset_t *set */); 232 int sigprocmask(/* int how, sigset_t *set, *oldset */); 233 int sigsuspend(/* sigset_t *mask */); 234 235 #endif /* !LOCORE && !KERNEL */ 236 #endif /* !__sys_signal_h */ 237