Source to osfmk/ddb/db_write_cmd.c
/*
* Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
*
* @APPLE_LICENSE_HEADER_START@
*
* The contents of this file constitute Original Code as defined in and
* are subject to the Apple Public Source License Version 1.1 (the
* "License"). You may not use this file except in compliance with the
* License. Please obtain a copy of the License at
* http://www.apple.com/publicsource and read it before using this file.
*
* This Original Code and all software distributed under the License are
* distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
* License for the specific language governing rights and limitations
* under the License.
*
* @APPLE_LICENSE_HEADER_END@
*/
/*
* @OSF_COPYRIGHT@
*/
/*
* HISTORY
*
* Revision 1.1.1.1 1998/09/22 21:05:48 wsanchez
* Import of Mac OS X kernel (~semeria)
*
* Revision 1.1.1.1 1998/03/07 02:26:09 wsanchez
* Import of OSF Mach kernel (~mburg)
*
* Revision 1.2.10.1 1994/09/23 01:23:15 ezf
* change marker to not FREE
* [1994/09/22 21:11:42 ezf]
*
* Revision 1.2.8.3 1994/03/17 22:35:48 dwm
* The infamous name change: thread_activation + thread_shuttle = thread.
* [1994/03/17 21:26:02 dwm]
*
* Revision 1.2.8.2 1994/01/12 17:51:11 dwm
* Coloc: initial restructuring to follow Utah model.
* [1994/01/12 17:13:42 dwm]
*
* Revision 1.2.8.1 1994/01/05 19:28:25 bolinger
* Target current address space, not current "task", for writes.
* [1994/01/04 17:44:51 bolinger]
*
* Revision 1.2.2.3 1993/07/27 18:28:36 elliston
* Add ANSI prototypes. CR #9523.
* [1993/07/27 18:13:37 elliston]
*
* Revision 1.2.2.2 1993/06/09 02:21:11 gm
* Added to OSF/1 R1.3 from NMK15.0.
* [1993/06/02 20:58:03 jeffc]
*
* Revision 1.2 1993/04/19 16:03:43 devrcs
* Changes from mk78:
* Removed unused variable 'p' from db_write_cmd().
* [92/05/16 jfriedl]
* Reorganized. w/u now works, instead of just w/tu.
* [92/04/18 danner]
* [93/02/02 bruel]
*
* Revision 1.1 1992/09/30 02:01:35 robert
* Initial revision
*
* $EndLog$
*/
/* CMU_HIST */
/*
* Revision 2.6 91/10/09 16:05:06 af
* Revision 2.5.3.1 91/10/05 13:09:25 jeffreyh
* Added user space write support including inactive task.
* [91/08/29 tak]
*
* Revision 2.5.3.1 91/10/05 13:09:25 jeffreyh
* Added user space write support including inactive task.
* [91/08/29 tak]
*
* Revision 2.5 91/05/14 15:38:04 mrt
* Correcting copyright
*
* Revision 2.4 91/02/05 17:07:35 mrt
* Changed to new Mach copyright
* [91/01/31 16:20:19 mrt]
*
* Revision 2.3 90/10/25 14:44:26 rwd
* Changed db_write_cmd to print unsigned.
* [90/10/19 rpd]
*
* Revision 2.2 90/08/27 21:53:54 dbg
* Set db_prev and db_next instead of explicitly advancing dot.
* [90/08/22 dbg]
* Reflected changes in db_printsym()'s calling seq.
* [90/08/20 af]
* Warn user if nothing was written.
* [90/08/07 dbg]
* Created.
* [90/07/25 dbg]
*
*/
/* CMU_ENDHIST */
/*
* Mach Operating System
* Copyright (c) 1991,1990 Carnegie Mellon University
* All Rights Reserved.
*
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or [email protected]
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie Mellon
* the rights to redistribute these changes.
*/
/*
*/
/*
* Author: David B. Golub, Carnegie Mellon University
* Date: 7/90
*/
#include <mach/boolean.h>
#include <kern/task.h>
#include <kern/thread.h>
#include <machine/db_machdep.h>
#include <ddb/db_lex.h>
#include <ddb/db_access.h>
#include <ddb/db_command.h>
#include <ddb/db_sym.h>
#include <ddb/db_task_thread.h>
#include <ddb/db_expr.h>
#include <ddb/db_write_cmd.h>
#include <ddb/db_output.h> /* For db_printf() */
/*
* Write to file.
*/
void
db_write_cmd(
db_expr_t address,
boolean_t have_addr,
db_expr_t count,
char * modif)
{
register db_addr_t addr;
register db_expr_t old_value;
db_expr_t new_value;
register int size;
boolean_t wrote_one = FALSE;
boolean_t t_opt, u_opt;
thread_act_t thr_act;
task_t task;
addr = (db_addr_t) address;
size = db_size_option(modif, &u_opt, &t_opt);
if (t_opt)
{
if (!db_get_next_act(&thr_act, 0))
return;
task = thr_act->task;
}
else
task = db_current_space();
/* if user space is not explicitly specified,
look in the kernel */
if (!u_opt)
task = TASK_NULL;
if (!DB_VALID_ADDRESS(addr, u_opt)) {
db_printf("Bad address 0x%x\n", addr);
return;
}
while (db_expression(&new_value)) {
old_value = db_get_task_value(addr, size, FALSE, task);
db_task_printsym(addr, DB_STGY_ANY, task);
db_printf("\t\t%#8n\t=\t%#8n\n", old_value, new_value);
db_put_task_value(addr, size, new_value, task);
addr += size;
wrote_one = TRUE;
}
if (!wrote_one)
db_error("Nothing written.\n");
db_next = addr;
db_prev = addr - size;
}