1 /* $OpenBSD: db_disasm.c,v 1.5 2020/09/11 09:27:10 mpi Exp $ */
2 /* $NetBSD: db_disasm.c,v 1.4 2003/07/15 00:24:38 lukem Exp $ */
3
4 /*
5 * Copyright (c) 1996 Mark Brinicombe.
6 * Copyright (c) 1996 Brini.
7 *
8 * All rights reserved.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. All advertising materials mentioning features or use of this software
19 * must display the following acknowledgement:
20 * This product includes software developed by Brini.
21 * 4. The name of the company nor the name of the author may be used to
22 * endorse or promote products derived from this software without specific
23 * prior written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY BRINI ``AS IS'' AND ANY EXPRESS OR IMPLIED
26 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
27 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
28 * IN NO EVENT SHALL BRINI OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
29 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
30 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
31 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 * SUCH DAMAGE.
36 */
37
38 #include <sys/param.h>
39 #include <sys/systm.h>
40 #include <machine/db_machdep.h>
41 #include <ddb/db_interface.h>
42 #include <ddb/db_sym.h>
43 #include <ddb/db_output.h>
44 #include <ddb/db_access.h>
45
46 #include <arch/arm/arm/disassem.h>
47
48 /* Glue code to interface db_disasm to the generic ARM disassembler */
49
50 static db_expr_t db_disasm_read_word(db_expr_t);
51 static void db_disasm_printaddr(db_expr_t);
52
53 static const disasm_interface_t db_disasm_interface = {
54 db_disasm_read_word, db_disasm_printaddr, db_printf
55 };
56
57 static db_expr_t
db_disasm_read_word(db_expr_t address)58 db_disasm_read_word(db_expr_t address)
59 {
60
61 return db_get_value(address, 4, 0);
62 }
63
64 static void
db_disasm_printaddr(db_expr_t address)65 db_disasm_printaddr(db_expr_t address)
66 {
67
68 db_printsym((vaddr_t)address, DB_STGY_ANY, db_printf);
69 }
70
71 vaddr_t
db_disasm(vaddr_t loc,int altfmt)72 db_disasm(vaddr_t loc, int altfmt)
73 {
74
75 return disasm(&db_disasm_interface, loc, altfmt);
76 }
77