1/* 2 * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28/* 29 * @OSF_COPYRIGHT@ 30 */ 31/* 32 * Mach Operating System 33 * Copyright (c) 1991,1990 Carnegie Mellon University 34 * All Rights Reserved. 35 * 36 * Permission to use, copy, modify and distribute this software and its 37 * documentation is hereby granted, provided that both the copyright 38 * notice and this permission notice appear in all copies of the 39 * software, derivative works or modified versions, and any portions 40 * thereof, and that both notices appear in supporting documentation. 41 * 42 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 43 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR 44 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 45 * 46 * Carnegie Mellon requests users of this software to return to 47 * 48 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 49 * School of Computer Science 50 * Carnegie Mellon University 51 * Pittsburgh PA 15213-3890 52 * 53 * any improvements or extensions that they make and grant Carnegie Mellon 54 * the rights to redistribute these changes. 55 */ 56/* 57 */ 58/* 59 * Author: David B. Golub, Carnegie Mellon University 60 * Date: 7/90 61 */ 62 63#include <mach/boolean.h> 64#include <kern/task.h> 65#include <kern/thread.h> 66 67#include <machine/db_machdep.h> 68 69#include <ddb/db_lex.h> 70#include <ddb/db_access.h> 71#include <ddb/db_command.h> 72#include <ddb/db_sym.h> 73#include <ddb/db_task_thread.h> 74#include <ddb/db_expr.h> 75#include <ddb/db_write_cmd.h> 76#include <ddb/db_output.h> /* For db_printf() */ 77 78/* 79 * Write to file. 80 */ 81void 82db_write_cmd(db_expr_t address, __unused boolean_t have_addr, 83 __unused db_expr_t count, char *modif) 84{ 85 register db_addr_t addr; 86 register db_expr_t old_value; 87 db_expr_t new_value; 88 register int size; 89 boolean_t wrote_one = FALSE; 90 boolean_t t_opt, u_opt; 91 thread_t thr_act; 92 task_t task; 93 94 addr = (db_addr_t) address; 95 96 size = db_size_option(modif, &u_opt, &t_opt); 97 98 if (t_opt) 99 { 100 if (!db_get_next_act(&thr_act, 0)) 101 return; 102 task = thr_act->task; 103 } 104 else 105 task = db_current_space(); 106 107 /* if user space is not explicitly specified, 108 look in the kernel */ 109 if (!u_opt) 110 task = TASK_NULL; 111 112 if (!DB_VALID_ADDRESS(addr, u_opt)) { 113 db_printf("Bad address 0x%llx\n", (unsigned long long)addr); 114 return; 115 } 116 117 while (db_expression(&new_value)) { 118 old_value = db_get_task_value(addr, size, FALSE, task); 119 db_task_printsym(addr, DB_STGY_ANY, task); 120 db_printf("\t\t%#8lln\t=\t%#8lln\n", (unsigned long long)old_value, (unsigned long long)new_value); 121 db_put_task_value(addr, size, new_value, task); 122 addr += size; 123 124 wrote_one = TRUE; 125 } 126 127 if (!wrote_one) 128 db_error("Nothing written.\n"); 129 130 db_next = addr; 131 db_prev = addr - size; 132} 133