/* $OpenBSD: db_write_cmd.c,v 1.7 2002/05/16 13:01:41 art Exp $ */ /* $NetBSD: db_write_cmd.c,v 1.6 1996/02/05 01:57:25 christos Exp $ */ /* * Mach Operating System * Copyright (c) 1993,1992,1991,1990 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 */ #include <sys/param.h> #include <sys/proc.h> #include <uvm/uvm_extern.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_extern.h> #include <ddb/db_output.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; 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; addr = (db_addr_t) address; switch (modif[0]) { case 'b': size = 1; break; case 'h': size = 2; break; case 'l': case '\0': size = 4; break; default: size = -1; db_error("Unknown size\n"); /*NOTREACHED*/ } while (db_expression(&new_value)) { old_value = db_get_value(addr, size, FALSE); db_printsym(addr, DB_STGY_ANY, db_printf); db_printf("\t\t%#8n\t=\t%#8n\n", old_value, new_value); db_put_value(addr, size, new_value); addr += size; wrote_one = TRUE; } if (!wrote_one) { db_error("Nothing written.\n"); /*NOTREACHED*/ } db_next = addr; db_prev = addr - size; db_skip_to_eol(); }