2 * Mach Operating System
3 * Copyright (c) 1991,1990 Carnegie Mellon University
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.
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.
16 * Carnegie Mellon requests users of this software to return to
18 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
19 * School of Computer Science
20 * Carnegie Mellon University
21 * Pittsburgh PA 15213-3890
23 * any improvements or extensions that they make and grant Carnegie Mellon
24 * the rights to redistribute these changes.
26 * from: FreeBSD: src/sys/i386/include/db_machdep.h,v 1.16 1999/10/04
30 #ifndef _MACHINE_DB_MACHDEP_H_
31 #define _MACHINE_DB_MACHDEP_H_
33 #include <machine/frame.h>
34 #include <machine/trap.h>
35 #include <machine/armreg.h>
39 #define T_BREAKPOINT (1)
40 typedef vm_offset_t db_addr_t;
41 typedef int db_expr_t;
43 #define PC_REGS() ((db_addr_t)kdb_thrctx->un_32.pcb32_pc)
45 #define BKPT_INST (KERNEL_BREAKPOINT)
46 #define BKPT_SIZE (INSN_SIZE)
47 #define BKPT_SET(inst) (BKPT_INST)
49 #define BKPT_SKIP do { \
50 kdb_frame->tf_pc -= BKPT_SIZE; \
53 #define db_clear_single_step(regs)
54 #define db_set_single_step(regs)
56 #define IS_BREAKPOINT_TRAP(type, code) (type == T_BREAKPOINT)
57 #define IS_WATCHPOINT_TRAP(type, code) (0)
59 #define inst_trap_return(ins) (0)
60 #define inst_return(ins) (0)
61 #define inst_call(ins) (0)
62 #define inst_load(ins) (0)
63 #define inst_store(ins) (0)
65 #define DB_SMALL_VALUE_MAX (0x7fffffff)
66 #define DB_SMALL_VALUE_MIN (-0x40001)
70 int db_validate_address(vm_offset_t);
71 #endif /* !_MACHINE_DB_MACHDEP_H_ */