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 * $FreeBSD$ 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_ */ 70