| | 1 | /* |
| | 2 | * Mach Operating System |
| | 3 | * Copyright (c) 1991,1990 Carnegie Mellon University |
| | 4 | * All Rights Reserved. |
| | 5 | * |
| | 6 | * Permission to use, copy, modify and distribute this software and its |
| | 7 | * documentation is hereby granted, provided that both the copyright |
| | 8 | * notice and this permission notice appear in all copies of the |
| | 9 | * software, derivative works or modified versions, and any portions |
| | 10 | * thereof, and that both notices appear in supporting documentation. |
| | 11 | * |
| | 12 | * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS |
| | 13 | * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR |
| | 14 | * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. |
| | 15 | * |
| | 16 | * Carnegie Mellon requests users of this software to return to |
| | 17 | * |
| | 18 | * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU |
| | 19 | * School of Computer Science |
| | 20 | * Carnegie Mellon University |
| | 21 | * Pittsburgh PA 15213-3890 |
| | 22 | * |
| | 23 | * any improvements or extensions that they make and grant Carnegie the |
| | 24 | * rights to redistribute these changes. |
| | 25 | * |
| | 26 | * $FreeBSD: src/sys/ddb/db_write_cmd.c,v 1.13 1999/08/28 00:41:12 peter Exp $ |
| | 27 | * $DragonFly: src/sys/ddb/db_write_cmd.c,v 1.3 2003/07/26 14:18:51 rob Exp $ |
| | 28 | */ |
| | 29 | |
| | 30 | /* |
| | 31 | * Author: David B. Golub, Carnegie Mellon University |
| | 32 | * Date: 7/90 |
| | 33 | */ |
| | 34 | |
| | 35 | #include <sys/param.h> |
| | 36 | |
| | 37 | #include <ddb/ddb.h> |
| | 38 | #include <ddb/db_access.h> |
| | 39 | #include <ddb/db_command.h> |
| | 40 | #include <ddb/db_sym.h> |
| | 41 | |
| | 42 | /* |
| | 43 | * Write to file. |
| | 44 | */ |
| | 45 | /*ARGSUSED*/ |
| | 46 | void |
| | 47 | db_write_cmd(address, have_addr, count, modif) |
| | 48 | db_expr_t address; |
| | 49 | boolean_t have_addr; |
| | 50 | db_expr_t count; |
| | 51 | char * modif; |
| | 52 | { |
| | 53 | db_addr_t addr; |
| | 54 | db_expr_t old_value; |
| | 55 | db_expr_t new_value; |
| | 56 | int size; |
| | 57 | boolean_t wrote_one = FALSE; |
| | 58 | |
| | 59 | addr = (db_addr_t) address; |
| | 60 | |
| | 61 | switch (modif[0]) { |
| | 62 | case 'b': |
| | 63 | size = 1; |
| | 64 | break; |
| | 65 | case 'h': |
| | 66 | size = 2; |
| | 67 | break; |
| | 68 | case 'l': |
| | 69 | case '\0': |
| | 70 | size = 4; |
| | 71 | break; |
| | 72 | default: |
| | 73 | db_error("Unknown size\n"); |
| | 74 | return; |
| | 75 | } |
| | 76 | |
| | 77 | while (db_expression(&new_value)) { |
| | 78 | old_value = db_get_value(addr, size, FALSE); |
| | 79 | db_printsym(addr, DB_STGY_ANY); |
| | 80 | db_printf("\t\t%#8lr\t=\t%#8lr\n", (long)old_value,(long)new_value); |
| | 81 | db_put_value(addr, size, new_value); |
| | 82 | addr += size; |
| | 83 | |
| | 84 | wrote_one = TRUE; |
| | 85 | } |
| | 86 | |
| | 87 | if (!wrote_one) |
| | 88 | db_error("Nothing written.\n"); |
| | 89 | |
| | 90 | db_next = addr; |
| | 91 | db_prev = addr - size; |
| | 92 | |
| | 93 | db_skip_to_eol(); |
| | 94 | } |
| | 95 | |
projects / dragonfly.git / blame_incremental