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Diffstat (limited to 'sys/arch/vax/include/trap.h')
| -rw-r--r-- | sys/arch/vax/include/trap.h | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/sys/arch/vax/include/trap.h b/sys/arch/vax/include/trap.h new file mode 100644 index 00000000000..b1cafc13785 --- /dev/null +++ b/sys/arch/vax/include/trap.h @@ -0,0 +1,109 @@ +/* $NetBSD: trap.h,v 1.8 1995/06/16 15:17:40 ragge Exp $ */ + +/*- + * 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 + */ +#ifndef _VAX_TRAP_H_ +#define _VAX_TRAP_H_ + +#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_ARITHFLT 6 /* arithmetic trap */ +#define T_ASTFLT 7 /* system forced exception */ +#define T_PTELEN 8 /* Page table length exceeded */ +#define T_TRANSFLT 9 /* translation fault */ +#define T_TRCTRAP 10 /* trace trap */ +/* #define T_COMPAT 11 /* compatibility mode fault on VAX */ +#define T_ACCFLT 12 /* Access violation 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 */ + +/* These gets ORed with the word for page handling routines */ +#define T_WRITE 0x80 +#define T_PTEFETCH 0x40 + +/* Trap's coming from user mode */ +#define T_USER 0x100 + +#ifndef ASSEMBLER +/* If we want to alter USP in some syscall, we do it with mtpr */ +struct trapframe { + int fp; /* Stack frame pointer */ + int ap; /* Argument pointer on user stack */ + int r0; /* General registers saved upon trap/syscall */ + int r1; + int r2; + int r3; + int r4; + int r5; + int r6; + int r7; + int r8; + int r9; + int r10; + int r11; + int trap; /* Type of trap */ + u_int code; /* Trap specific code */ + u_int pc; /* User pc */ + u_int psl; /* User psl */ +}; +#endif /* ASSEMBLER */ + +#endif _VAX_TRAP_H_ |