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/*
* Mach Operating System
* Copyright (c) 1992,1991,1990 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 Software.Distribution@CS.CMU.EDU
* 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
*/
#if MACH_KDB
#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_expr.h>
#include <ddb/db_output.h>
#include <ddb/db_sym.h>
#include <ddb/db_task_thread.h>
/*
* Write to file.
*/
/*ARGSUSED*/
void
db_write_cmd(address, have_addr, count, modif)
db_expr_t address;
boolean_t have_addr;
db_expr_t count;
const char * modif;
{
db_addr_t addr;
db_expr_t old_value;
db_expr_t new_value;
int size;
boolean_t wrote_one = FALSE;
boolean_t t_opt, u_opt;
thread_t thread;
task_t task;
addr = (db_addr_t) address;
size = db_size_option(modif, &u_opt, &t_opt);
if (t_opt)
{
if (!db_get_next_thread(&thread, 0))
return;
task = thread->task;
}
else
task = db_current_task();
/* 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 %#*X\n", 2*sizeof(vm_offset_t), 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%#*N\t=\t%#*N\n",
2*sizeof(db_expr_t), old_value,
2*sizeof(db_expr_t), 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;
}
#endif /* MACH_KDB */
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