xref: /freebsd-9.3-release/sys/arm/arm/db_disasm.c

/*	$NetBSD: db_disasm.c,v 1.4 2003/07/15 00:24:38 lukem Exp $	*/

/*-
 * Copyright (c) 1996 Mark Brinicombe.
 * Copyright (c) 1996 Brini.
 *
 * All rights reserved.
 *
 * 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 Brini.
 * 4. The name of the company nor the name of the author may be used to
 *    endorse or promote products derived from this software without specific
 *    prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY BRINI ``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 BRINI 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.
 */

#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <machine/db_machdep.h>
#include <ddb/ddb.h>
#include <ddb/db_access.h>
#include <ddb/db_sym.h>

#include <machine/disassem.h>

/* Glue code to interface db_disasm to the generic ARM disassembler */

static u_int db_disasm_read_word(u_int);
static void db_disasm_printaddr(u_int);

static const disasm_interface_t db_disasm_interface = {
	db_disasm_read_word,
	db_disasm_printaddr,
       	db_printf
};

static u_int
db_disasm_read_word(u_int address)
{

	return db_get_value(address, 4, 0);
}

static void
db_disasm_printaddr(u_int address)
{

	db_printsym((db_addr_t)address, DB_STGY_ANY);
}

vm_offset_t
db_disasm(vm_offset_t loc, boolean_t altfmt)
{

	return disasm(&db_disasm_interface, loc, altfmt);
}

/* End of db_disasm.c */