From d6583bb2a13f329cf0332ef2570eb8bb8fc0e39c Mon Sep 17 00:00:00 2001 From: Theo de Raadt Date: Wed, 18 Oct 1995 08:53:40 +0000 Subject: initial import of NetBSD tree --- sys/arch/vax/include/db_machdep.h | 73 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 73 insertions(+) create mode 100644 sys/arch/vax/include/db_machdep.h (limited to 'sys/arch/vax/include/db_machdep.h') diff --git a/sys/arch/vax/include/db_machdep.h b/sys/arch/vax/include/db_machdep.h new file mode 100644 index 00000000000..b2a9fd68642 --- /dev/null +++ b/sys/arch/vax/include/db_machdep.h @@ -0,0 +1,73 @@ +/* $NetBSD: db_machdep.h,v 1.1 1995/06/16 15:17:27 ragge Exp $ */ + +/* + * Mach Operating System + * Copyright (c) 1991,1990 Carnegie Mellon University + * All Rights Reserved. + * + * Permission to use, copy, modify and distribute this software and its + * documentation is hereby granted, provided that both the copyright + * notice and this permission notice appear in all copies of the + * software, derivative works or modified versions, and any portions + * thereof, and that both notices appear in supporting documentation. + * + * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" + * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR + * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. + * + * Carnegie Mellon requests users of this software to return to + * + * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU + * School of Computer Science + * Carnegie Mellon University + * Pittsburgh PA 15213-3890 + * + * any improvements or extensions that they make and grant Carnegie Mellon + * the rights to redistribute these changes. + */ + +#ifndef _VAX_DB_MACHDEP_H_ +#define _VAX_DB_MACHDEP_H_ + +/* + * Machine-dependent defines for new kernel debugger. + * Modified for vax out of i386 code. + */ + +#include +#include +#include + +typedef vm_offset_t db_addr_t; /* address - unsigned */ +typedef int db_expr_t; /* expression - signed */ + +typedef struct trapframe db_regs_t; +db_regs_t ddb_regs; /* register state */ +#define DDB_REGS (&ddb_regs) + +#define PC_REGS(regs) ((db_addr_t)(regs)->pc) + +#define BKPT_INST 0x03 /* breakpoint instruction */ +#define BKPT_SIZE (1) /* size of breakpoint inst */ +#define BKPT_SET(inst) (BKPT_INST) + +#define FIXUP_PC_AFTER_BREAK ddb_regs.pc -= BKPT_SIZE; + +#define db_clear_single_step(regs) ((regs)->psl &= ~PSL_T) +#define db_set_single_step(regs) ((regs)->psl |= PSL_T) + +#define IS_BREAKPOINT_TRAP(type, code) ((type) == T_BPTFLT) +#define IS_WATCHPOINT_TRAP(type, code) ((type) == T_TRCTRAP) + +#define I_CALL 0xfb +#define I_RET 0x04 +#define I_IRET 0x02 + +#define inst_trap_return(ins) (((ins)&0xff) == I_IRET) +#define inst_return(ins) (((ins)&0xff) == I_RET) +#define inst_call(ins) (((ins)&0xff) == I_CALL) + +#define inst_load(ins) 0 +#define inst_store(ins) 0 + +#endif /* _VAX_DB_MACHDEP_H_ */ -- cgit v1.2.3