1 /* 2 * Copyright 1996 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 16 #ifndef CSH_SIGNAL_H 17 #define CSH_SIGNAL_H 18 19 /* 20 * 4.3BSD signal compatibility header 21 * 22 */ 23 #define sigmask(m) (m > 32 ? 0 : (1 << ((m)-1))) 24 25 /* 26 * 4.3BSD signal vector structure used in sigvec call. 27 */ 28 struct sigvec { 29 void (*sv_handler)(); /* signal handler */ 30 int sv_mask; /* signal mask to apply */ 31 int sv_flags; /* see signal options below */ 32 }; 33 34 #define SV_ONSTACK 0x0001 /* take signal on signal stack */ 35 #define SV_INTERRUPT 0x0002 /* do not restart system on signal return */ 36 #define SV_RESETHAND 0x0004 /* reset handler to SIG_DFL when signal taken */ 37 38 #define sv_onstack sv_flags 39 40 /* 41 * Machine dependent deta structure 42 */ 43 struct sigcontext { 44 int sc_onstack; /* sigstack state to restore */ 45 int sc_mask; /* signal mask to restore */ 46 int sc_sp; /* sp to restore */ 47 int sc_pc; /* pc to retore */ 48 int sc_ps; /* psl to restore */ 49 int sc_eax; /* eax to restore */ 50 int sc_edx; /* edx to restore */ 51 }; 52 53 #define SI_DFLCODE 1 54 55 #define BUS_HWERR BUS_ADRERR /* misc hardware error (e.g. timeout) */ 56 #define BUS_ALIGN BUS_ADRALN /* hardware alignment error */ 57 58 #define SEGV_NOMAP SEGV_MAPERR /* no mapping at the fault address */ 59 #define SEGV_PROT SEGV_ACCERR /* access exceeded protections */ 60 61 /* 62 * The SEGV_CODE(code) will be SEGV_NOMAP, SEGV_PROT, or SEGV_OBJERR. 63 * In the SEGV_OBJERR case, doing a SEGV_ERRNO(code) gives an errno value 64 * reported by the underlying file object mapped at the fault address. 65 */ 66 67 #define SIG_NOADDR ((char *)~0) 68 69 #define SEGV_MAKE_ERR(e) (((e) << 8) | SEGV_MAPERR) 70 71 #endif /* CSH_SIGNAL_H */ 72