1 /* 2 * Copyright 1997 Sun Microsystems, Inc. All rights reserved. 3 * Use is subject to license terms. 4 */ 5 6 /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */ 7 /* All Rights Reserved */ 8 9 /* 10 * Copyright (c) 1980 Regents of the University of California. 11 * All rights reserved. The Berkeley Software License Agreement 12 * specifies the terms and conditions for redistribution. 13 */ 14 15 #ifndef CSH_SIGNAL_H 16 #define CSH_SIGNAL_H 17 18 #pragma ident "%Z%%M% %I% %E% SMI" 19 20 /* 21 * 4.3BSD signal compatibility header 22 * 23 */ 24 #define sigmask(m) (m > 32 ? 0 : (1 << ((m)-1))) 25 26 /* 27 * 4.3BSD signal vector structure used in sigvec call. 28 */ 29 struct sigvec { 30 void (*sv_handler)(); /* signal handler */ 31 int sv_mask; /* signal mask to apply */ 32 int sv_flags; /* see signal options below */ 33 }; 34 35 #define SV_ONSTACK 0x0001 /* take signal on signal stack */ 36 #define SV_INTERRUPT 0x0002 /* do not restart system on signal return */ 37 #define SV_RESETHAND 0x0004 /* reset handler to SIG_DFL when signal taken */ 38 39 #define sv_onstack sv_flags 40 41 /* 42 * Machine dependent data structure 43 */ 44 struct sigcontext { 45 int sc_onstack; /* sigstack state to restore */ 46 int sc_mask; /* signal mask to restore */ 47 #define MAXWINDOW 31 /* max usable windows in sparc */ 48 long sc_sp; /* sp to restore */ 49 long sc_pc; /* pc to retore */ 50 long sc_npc; /* next pc to restore */ 51 long sc_psr; /* psr to restore */ 52 long sc_g1; /* register that must be restored */ 53 long sc_o0; 54 long sc_wbcnt; /* number of outstanding windows */ 55 long *sc_spbuf[MAXWINDOW]; /* sp's for each wbuf */ 56 long sc_wbuf[MAXWINDOW][16]; /* outstanding window save buffer */ 57 }; 58 59 #define SI_DFLCODE 1 60 61 #define BUS_HWERR BUS_ADRERR /* misc hardware error (e.g. timeout) */ 62 #define BUS_ALIGN BUS_ADRALN /* hardware alignment error */ 63 64 #define SEGV_NOMAP SEGV_MAPERR /* no mapping at the fault address */ 65 #define SEGV_PROT SEGV_ACCERR /* access exceeded protections */ 66 67 /* 68 * The SEGV_CODE(code) will be SEGV_NOMAP, SEGV_PROT, or SEGV_OBJERR. 69 * In the SEGV_OBJERR case, doing a SEGV_ERRNO(code) gives an errno value 70 * reported by the underlying file object mapped at the fault address. 71 */ 72 73 #define SIG_NOADDR ((char *)~0) 74 75 #define SEGV_MAKE_ERR(e) (((e) << 8) | SEGV_MAPERR) 76 77 #endif /* CSH_SIGNAL_H */ 78