a7674320e9
macros) to the signal handler, for old-style BSD signal handlers as the second (int) argument, for SA_SIGINFO signal handlers as siginfo_t->si_code. This is source-compatible with Solaris, except that we have no <siginfo.h> (which isn't even mentioned in POSIX 1003.1b). An rather complete example program is at http://www3.cons.org/cracauer/freebsd-signal.c This will be added to the regression tests in src/. This commit also adds code to disable the (hardware) FPU from userconfig, so that you can use a software FP emulator on a machine that has hardware floating point. See LINT.
114 lines
4.6 KiB
C
114 lines
4.6 KiB
C
/*-
|
|
* Copyright (c) 1990 The Regents of the University of California.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to Berkeley by
|
|
* William Jolitz.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* from: @(#)trap.h 5.4 (Berkeley) 5/9/91
|
|
* $Id: trap.h,v 1.7 1997/02/22 09:35:19 peter Exp $
|
|
*/
|
|
|
|
#ifndef _MACHINE_TRAP_H_
|
|
#define _MACHINE_TRAP_H_
|
|
|
|
/*
|
|
* Trap type values
|
|
* also known in trap.c for name strings
|
|
*/
|
|
|
|
#define T_PRIVINFLT 1 /* privileged instruction */
|
|
#define T_BPTFLT 3 /* breakpoint instruction */
|
|
#define T_ARITHTRAP 6 /* arithmetic trap */
|
|
#define T_ASTFLT 7 /* system forced exception */
|
|
#define T_PROTFLT 9 /* protection fault */
|
|
#define T_TRCTRAP 10 /* debug exception (sic) */
|
|
#define T_PAGEFLT 12 /* page fault */
|
|
#define T_ALIGNFLT 14 /* alignment fault */
|
|
|
|
#define T_DIVIDE 18 /* integer divide fault */
|
|
#define T_NMI 19 /* non-maskable trap */
|
|
#define T_OFLOW 20 /* overflow trap */
|
|
#define T_BOUND 21 /* bound instruction fault */
|
|
#define T_DNA 22 /* device not available fault */
|
|
#define T_DOUBLEFLT 23 /* double fault */
|
|
#define T_FPOPFLT 24 /* fp coprocessor operand fetch fault */
|
|
#define T_TSSFLT 25 /* invalid tss fault */
|
|
#define T_SEGNPFLT 26 /* segment not present fault */
|
|
#define T_STKFLT 27 /* stack fault */
|
|
#define T_MCHK 28 /* machine check trap */
|
|
#define T_RESERVED 29 /* reserved (unknown) */
|
|
|
|
/* XXX most of the following codes aren't used, but could be. */
|
|
|
|
/* definitions for <sys/signal.h> */
|
|
#define ILL_RESAD_FAULT T_RESADFLT
|
|
#define ILL_PRIVIN_FAULT T_PRIVINFLT
|
|
#define ILL_RESOP_FAULT T_RESOPFLT
|
|
#define ILL_ALIGN_FAULT T_ALIGNFLT
|
|
#define ILL_FPOP_FAULT T_FPOPFLT /* coprocessor operand fault */
|
|
|
|
/*
|
|
* codes for SIGFPE/ARITHTRAP
|
|
*
|
|
*/
|
|
/* portable macros */
|
|
#define FPE_INTDIV 1 /* integer divide by zero */
|
|
#define FPE_INTOVF 2 /* integer overflow */
|
|
#define FPE_FLTDIV 3 /* floating point divide by zero */
|
|
#define FPE_FLTOVF 4 /* floating point overflow */
|
|
#define FPE_FLTUND 5 /* floating point underflow */
|
|
#define FPE_FLTRES 6 /* floating point inexact result */
|
|
#define FPE_FLTINV 7 /* invalid floating point operation */
|
|
#define FPE_FLTSUB 8 /* subscript out of range */
|
|
|
|
/* old FreeBSD macros, deprecated */
|
|
#define FPE_INTOVF_TRAP 0x1 /* integer overflow */
|
|
#define FPE_INTDIV_TRAP 0x2 /* integer divide by zero */
|
|
#define FPE_FLTDIV_TRAP 0x3 /* floating/decimal divide by zero */
|
|
#define FPE_FLTOVF_TRAP 0x4 /* floating overflow */
|
|
#define FPE_FLTUND_TRAP 0x5 /* floating underflow */
|
|
#define FPE_FPU_NP_TRAP 0x6 /* floating point unit not present
|
|
* - won't happen in practice
|
|
*/
|
|
#define FPE_SUBRNG_TRAP 0x7 /* subrange out of bounds */
|
|
|
|
/* codes for SIGBUS */
|
|
#define BUS_PAGE_FAULT T_PAGEFLT /* page fault protection base */
|
|
#define BUS_SEGNP_FAULT T_SEGNPFLT /* segment not present */
|
|
#define BUS_STK_FAULT T_STKFLT /* stack segment */
|
|
#define BUS_SEGM_FAULT T_RESERVED /* segment protection base */
|
|
|
|
/* Trap's coming from user mode */
|
|
#define T_USER 0x100
|
|
|
|
#endif /* !_MACHINE_TRAP_H_ */
|