9016ec056a
As bsd_to_linux_trapcode() is common for x86 Linuxulators, move it under x86/linux. MFC after: 2 weeks
99 lines
2.8 KiB
C
99 lines
2.8 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 1994-1996 Søren Schmidt
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/signal.h>
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#include <x86/trap.h>
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#include <x86/linux/linux_x86.h>
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#define LINUX_T_UNKNOWN 255
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static int _bsd_to_linux_trapcode[] = {
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LINUX_T_UNKNOWN, /* 0 */
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6, /* 1 T_PRIVINFLT */
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LINUX_T_UNKNOWN, /* 2 */
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3, /* 3 T_BPTFLT */
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LINUX_T_UNKNOWN, /* 4 */
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LINUX_T_UNKNOWN, /* 5 */
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16, /* 6 T_ARITHTRAP */
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254, /* 7 T_ASTFLT */
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LINUX_T_UNKNOWN, /* 8 */
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13, /* 9 T_PROTFLT */
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1, /* 10 T_TRCTRAP */
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LINUX_T_UNKNOWN, /* 11 */
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14, /* 12 T_PAGEFLT */
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LINUX_T_UNKNOWN, /* 13 */
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17, /* 14 T_ALIGNFLT */
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LINUX_T_UNKNOWN, /* 15 */
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LINUX_T_UNKNOWN, /* 16 */
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LINUX_T_UNKNOWN, /* 17 */
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0, /* 18 T_DIVIDE */
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2, /* 19 T_NMI */
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4, /* 20 T_OFLOW */
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5, /* 21 T_BOUND */
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7, /* 22 T_DNA */
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8, /* 23 T_DOUBLEFLT */
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9, /* 24 T_FPOPFLT */
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10, /* 25 T_TSSFLT */
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11, /* 26 T_SEGNPFLT */
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12, /* 27 T_STKFLT */
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18, /* 28 T_MCHK */
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19, /* 29 T_XMMFLT */
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15 /* 30 T_RESERVED */
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};
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/*
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* If FreeBSD & Linux have a difference of opinion about what a trap
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* means, deal with it here.
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*/
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int
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linux_translate_traps(int signal, int trap_code)
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{
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if (signal != SIGBUS)
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return (signal);
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switch (trap_code) {
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case T_PROTFLT:
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case T_TSSFLT:
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case T_DOUBLEFLT:
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case T_PAGEFLT:
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return (SIGSEGV);
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default:
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return (signal);
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}
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}
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int
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bsd_to_linux_trapcode(int code)
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{
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return (code < nitems(_bsd_to_linux_trapcode) ?
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_bsd_to_linux_trapcode[code] : LINUX_T_UNKNOWN);
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} |