diff options
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/arch/alpha/include/db_machdep.h | 120 |
1 files changed, 58 insertions, 62 deletions
diff --git a/sys/arch/alpha/include/db_machdep.h b/sys/arch/alpha/include/db_machdep.h index fd7ba232ba6..59f9d27aa97 100644 --- a/sys/arch/alpha/include/db_machdep.h +++ b/sys/arch/alpha/include/db_machdep.h @@ -1,86 +1,82 @@ -/* $OpenBSD: db_machdep.h,v 1.5 1997/07/06 16:20:23 niklas Exp $ */ -/* $NetBSD: db_machdep.h,v 1.2 1996/07/11 05:31:31 cgd Exp $ */ +/* $OpenBSD: db_machdep.h,v 1.6 1997/07/19 20:50:50 niklas Exp $ */ /* - * Copyright (c) 1995 Carnegie-Mellon University. - * All rights reserved. + * Copyright (c) 1997 Niklas Hallqvist. All rights reserverd. * - * Author: Chris G. Demetriou + * 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 Niklas Hallqvist. + * 4. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. * - * 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 the - * rights to redistribute these changes. + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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. */ #ifndef _ALPHA_DB_MACHDEP_H_ #define _ALPHA_DB_MACHDEP_H_ -/* - * Machine-dependent defines for new kernel debugger. - */ - -#include <sys/param.h> -#include <vm/vm.h> -#include <machine/frame.h> - -typedef vm_offset_t db_addr_t; /* address - unsigned */ -typedef long db_expr_t; /* expression - signed */ +struct opcode { + enum opc_fmt { OPC_PAL, OPC_RES, OPC_MEM, OPC_OP, OPC_BR } opc_fmt; + char *opc_name; + int opc_print; +}; +extern struct opcode opcode[]; +/* types the generic ddb module needs */ +typedef vm_offset_t db_addr_t; +typedef long db_expr_t; typedef struct trapframe db_regs_t; -db_regs_t ddb_regs; /* register state */ + +db_regs_t ddb_regs; #define DDB_REGS (&ddb_regs) #define PC_REGS(regs) ((db_addr_t)(regs)->tf_regs[FRAME_PC]) -#define BKPT_INST 0x00000080 /* breakpoint instruction */ -#define BKPT_SIZE (4) /* size of breakpoint inst */ -#define BKPT_SET(inst) (BKPT_INST) +/* Breakpoint related definitions */ +#define BKPT_INST 0x00000080 /* call_pal bpt */ +#define BKPT_SIZE sizeof(int) +#define BKPT_SET(inst) BKPT_INST -#define FIXUP_PC_AFTER_BREAK(regs) ((regs)->tf_regs[FRAME_PC] -= BKPT_SIZE) - -#define IS_BREAKPOINT_TRAP(type, code) 0 -#define IS_WATCHPOINT_TRAP(type, code) 0 - -#define SOFTWARE_SSTEP - -/* Hack to skip GCC "unused" warnings. */ -#ifdef __GNUC__ -#define inst_trap_return(ins) ({(ins); 0;}) -#define inst_return(ins) ({(ins); 0;}) -#define inst_call(ins) ({(ins); 0;}) -#define inst_branch(ins) ({(ins); 0;}) -#define inst_load(ins) ({(ins); 0;}) -#define inst_store(ins) ({(ins); 0;}) +#define IS_BREAKPOINT_TRAP(type, code) \ + ((type) == ALPHA_KENTRY_IF && (code) == ALPHA_IF_CODE_BPT) +#ifdef notyet +#define IS_WATCHPOINT_TRAP(type, code) ((type) == ALPHA_KENTRY_MM) #else -#define inst_trap_return(ins) 0 -#define inst_return(ins) 0 -#define inst_call(ins) 0 -#define inst_branch(ins) 0 -#define inst_load(ins) 0 -#define inst_store(ins) 0 +#define IS_WATCHPOINT_TRAP(type, code) 0 #endif -#define next_instr_address(pc, bd) (pc + 4) +#define FIXUP_PC_AFTER_BREAK(regs) ((regs)->tf_regs[FRAME_PC] -= sizeof(int)) -/* XXX temporary hack until we implement singlestepping */ -#define branch_taken(a, b, c, d) 0 +#define SOFTWARE_SSTEP +/* Hack to skip GCC "unused" warnings. */ +#define inst_trap_return(ins) ((ins) & 0) /* XXX */ +#define inst_return(ins) ((ins) == 0x6bfa8001) + +int inst_call __P((u_int)); +int inst_branch __P((u_int)); +int inst_load __P((u_int)); +int inst_store __P((u_int)); +db_addr_t branch_taken __P((u_int, db_addr_t, + register_t (*) __P((db_regs_t *, int)), db_regs_t *)); +db_addr_t next_instr_address __P((db_addr_t, int)); int kdb_trap __P((int, int, db_regs_t *)); #endif /* _ALPHA_DB_MACHDEP_H_ */ |