1 /*-
2 * Mach Operating System
3 * Copyright (c) 1991,1990 Carnegie Mellon University
4 * All Rights Reserved.
5 *
6 * Permission to use, copy, modify and distribute this software and its
7 * documentation is hereby granted, provided that both the copyright
8 * notice and this permission notice appear in all copies of the
9 * software, derivative works or modified versions, and any portions
10 * thereof, and that both notices appear in supporting documentation.
11 *
12 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
13 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
14 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
15 *
16 * Carnegie Mellon requests users of this software to return to
17 *
18 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
19 * School of Computer Science
20 * Carnegie Mellon University
21 * Pittsburgh PA 15213-3890
22 *
23 * any improvements or extensions that they make and grant Carnegie Mellon
24 * the rights to redistribute these changes.
25 *
26 * from: FreeBSD: src/sys/i386/include/db_machdep.h,v 1.16 1999/10/04
27 * $FreeBSD: releng/6.0/sys/sparc64/include/db_machdep.h 139825 2005-01-07 02:29:27Z imp $
28 */
29
30 #ifndef _MACHINE_DB_MACHDEP_H_
31 #define _MACHINE_DB_MACHDEP_H_
32
33 #include <machine/frame.h>
34 #include <machine/trap.h>
35
36 #define BYTE_MSF (1)
37
38 typedef vm_offset_t db_addr_t;
39 typedef long db_expr_t;
40
41 #define PC_REGS() ((db_addr_t)kdb_thrctx->pcb_pc)
42
43 #define BKPT_INST (0x91d03001)
44 #define BKPT_SIZE (4)
45 #define BKPT_SET(inst) (BKPT_INST)
46
47 #define BKPT_SKIP do { \
48 kdb_frame->tf_tpc = kdb_frame->tf_tnpc + 4; \
49 kdb_frame->tf_tnpc += 8; \
50 } while (0)
51
52 #define db_clear_single_step kdb_cpu_clear_singlestep
53 #define db_set_single_step kdb_cpu_set_singlestep
54
55 #define IS_BREAKPOINT_TRAP(type, code) (type == T_BREAKPOINT)
56 #define IS_WATCHPOINT_TRAP(type, code) (0)
57
58 #define inst_trap_return(ins) (0)
59 #define inst_return(ins) (0)
60 #define inst_call(ins) (0)
61 #define inst_load(ins) (0)
62 #define inst_store(ins) (0)
63
64 #define DB_SMALL_VALUE_MAX (0x7fffffff)
65 #define DB_SMALL_VALUE_MIN (-0x40001)
66
67 #define DB_ELFSIZE 64
68
69 #endif /* !_MACHINE_DB_MACHDEP_H_ */
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