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/* $OpenBSD: db_machdep.h,v 1.8 2000/04/06 13:30:47 art Exp $ */
/*
* Copyright (c) 1997 Niklas Hallqvist. All rights reserverd.
*
* 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.
*
* 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_
/* XXX - Need to include vm.h for boolean_t */
#include <vm/vm.h>
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;
#define DDB_REGS (&ddb_regs)
#define PC_REGS(regs) ((db_addr_t)(regs)->tf_regs[FRAME_PC])
/* Breakpoint related definitions */
#define BKPT_INST 0x00000080 /* call_pal bpt */
#define BKPT_SIZE sizeof(int)
#define BKPT_SET(inst) BKPT_INST
#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 IS_WATCHPOINT_TRAP(type, code) 0
#endif
#define FIXUP_PC_AFTER_BREAK(regs) ((regs)->tf_regs[FRAME_PC] -= sizeof(int))
#define SOFTWARE_SSTEP
#define DB_VALID_BREAKPOINT(addr) db_valid_breakpoint(addr)
/* Hack to skip GCC "unused" warnings. */
#define inst_trap_return(ins) ((ins) & 0) /* XXX */
#define inst_return(ins) (((ins) & 0xfc000000) == 0x68000000)
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 *));
int db_valid_breakpoint __P((db_addr_t));
#endif /* _ALPHA_DB_MACHDEP_H_ */
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