db_machdep.h revision 129198
1129198Scognet/* 2129198Scognet * Mach Operating System 3129198Scognet * Copyright (c) 1991,1990 Carnegie Mellon University 4129198Scognet * All Rights Reserved. 5129198Scognet * 6129198Scognet * Permission to use, copy, modify and distribute this software and its 7129198Scognet * documentation is hereby granted, provided that both the copyright 8129198Scognet * notice and this permission notice appear in all copies of the 9129198Scognet * software, derivative works or modified versions, and any portions 10129198Scognet * thereof, and that both notices appear in supporting documentation. 11129198Scognet * 12129198Scognet * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 13129198Scognet * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR 14129198Scognet * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 15129198Scognet * 16129198Scognet * Carnegie Mellon requests users of this software to return to 17129198Scognet * 18129198Scognet * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 19129198Scognet * School of Computer Science 20129198Scognet * Carnegie Mellon University 21129198Scognet * Pittsburgh PA 15213-3890 22129198Scognet * 23129198Scognet * any improvements or extensions that they make and grant Carnegie Mellon 24129198Scognet * the rights to redistribute these changes. 25129198Scognet * 26129198Scognet * from: FreeBSD: src/sys/i386/include/db_machdep.h,v 1.16 1999/10/04 27129198Scognet * $FreeBSD: head/sys/arm/include/db_machdep.h 129198 2004-05-14 11:46:45Z cognet $ 28129198Scognet */ 29129198Scognet 30129198Scognet#ifndef _MACHINE_DB_MACHDEP_H_ 31129198Scognet#define _MACHINE_DB_MACHDEP_H_ 32129198Scognet 33129198Scognet#include <machine/frame.h> 34129198Scognet#include <machine/trap.h> 35129198Scognet#include <machine/armreg.h> 36129198Scognet 37129198Scognet#define BYTE_MSF (1) 38129198Scognet 39129198Scognet#define T_BREAKPOINT (1) 40129198Scognettypedef vm_offset_t db_addr_t; 41129198Scognettypedef int db_expr_t; 42129198Scognet 43129198Scognettypedef struct trapframe db_regs_t; 44129198Scognetextern db_regs_t ddb_regs; 45129198Scognet#define DDB_REGS (&ddb_regs) 46129198Scognet 47129198Scognet#define PC_REGS(regs) ((db_addr_t)(regs)->tf_pc) 48129198Scognet 49129198Scognet#define BKPT_INST (KERNEL_BREAKPOINT) 50129198Scognet#define BKPT_SIZE (INSN_SIZE) 51129198Scognet#define BKPT_SET(inst) (BKPT_INST) 52129198Scognet 53129198Scognet#define BKPT_SKIP do { \ 54129198Scognet ddb_regs.tf_pc -= BKPT_SIZE; \ 55129198Scognet} while (0) 56129198Scognet 57129198Scognet#define db_clear_single_step(regs) 58129198Scognet#define db_set_single_step(regs) 59129198Scognet 60129198Scognet#define IS_BREAKPOINT_TRAP(type, code) (type == T_BREAKPOINT) 61129198Scognet#define IS_WATCHPOINT_TRAP(type, code) (0) 62129198Scognet 63129198Scognet#define inst_trap_return(ins) (0) 64129198Scognet#define inst_return(ins) (0) 65129198Scognet#define inst_call(ins) (0) 66129198Scognet#define inst_load(ins) (0) 67129198Scognet#define inst_store(ins) (0) 68129198Scognet 69129198Scognet#define DB_SMALL_VALUE_MAX (0x7fffffff) 70129198Scognet#define DB_SMALL_VALUE_MIN (-0x40001) 71129198Scognet 72129198Scognet#define DB_ELFSIZE 64 73129198Scognet 74129198Scognetint db_validate_address(vm_offset_t); 75129198Scognet#endif /* !_MACHINE_DB_MACHDEP_H_ */ 76