diff options
Diffstat (limited to 'sys/i386/include/trap.h')
| -rw-r--r-- | sys/i386/include/trap.h | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/sys/i386/include/trap.h b/sys/i386/include/trap.h new file mode 100644 index 0000000..6015605 --- /dev/null +++ b/sys/i386/include/trap.h @@ -0,0 +1,96 @@ +/*- + * 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. + * + * @(#)trap.h 5.4 (Berkeley) 5/9/91 + */ + +/* + * Trap type values + * also known in trap.c for name strings + */ + +#define T_RESADFLT 0 /* reserved addressing */ +#define T_PRIVINFLT 1 /* privileged instruction */ +#define T_RESOPFLT 2 /* reserved operand */ +#define T_BPTFLT 3 /* breakpoint instruction */ +#define T_SYSCALL 5 /* system call (kcall) */ +#define T_ARITHTRAP 6 /* arithmetic trap */ +#define T_ASTFLT 7 /* system forced exception */ +#define T_SEGFLT 8 /* segmentation (limit) fault */ +#define T_PROTFLT 9 /* protection fault */ +#define T_TRCTRAP 10 /* trace trap */ +#define T_PAGEFLT 12 /* page fault */ +#define T_TABLEFLT 13 /* page table fault */ +#define T_ALIGNFLT 14 /* alignment fault */ +#define T_KSPNOTVAL 15 /* kernel stack pointer not valid */ +#define T_BUSERR 16 /* bus error */ +#define T_KDBTRAP 17 /* kernel debugger trap */ + +#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_RESERVED 28 /* reserved fault base */ + +/* 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 */ +#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 */ +#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 |
