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 #include <machine/armreg.h> 36 37 #define BYTE_MSF (1) 38 39 #define T_BREAKPOINT (1) 40 typedef vm_offset_t db_addr_t; 41 typedef int db_expr_t; 42 43 typedef struct trapframe db_regs_t; 44 extern db_regs_t ddb_regs; 45 #define DDB_REGS (&ddb_regs) 46 47 #define PC_REGS(regs) ((db_addr_t)(regs)->tf_pc) 48 49 #define BKPT_INST (KERNEL_BREAKPOINT) 50 #define BKPT_SIZE (INSN_SIZE) 51 #define BKPT_SET(inst) (BKPT_INST) 52 53 #define BKPT_SKIP do { \ 54 ddb_regs.tf_pc -= BKPT_SIZE; \ 55 } while (0) 56 57 #define db_clear_single_step(regs) 58 #define db_set_single_step(regs) 59 60 #define IS_BREAKPOINT_TRAP(type, code) (type == T_BREAKPOINT) 61 #define IS_WATCHPOINT_TRAP(type, code) (0) 62 63 #define inst_trap_return(ins) (0) 64 #define inst_return(ins) (0) 65 #define inst_call(ins) (0) 66 #define inst_load(ins) (0) 67 #define inst_store(ins) (0) 68 69 #define DB_SMALL_VALUE_MAX (0x7fffffff) 70 #define DB_SMALL_VALUE_MIN (-0x40001) 71 72 #define DB_ELFSIZE 64 73 74 int db_validate_address(vm_offset_t); 75 #endif /* !_MACHINE_DB_MACHDEP_H_ */ 76