projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| 1c79356b A |
1 | /* |
| 2 | * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. | |
| 3 | * | |
| 4 | * @APPLE_LICENSE_HEADER_START@ | |
| 5 | * | |
| 6 | * The contents of this file constitute Original Code as defined in and | |
| 7 | * are subject to the Apple Public Source License Version 1.1 (the | |
| 8 | * "License"). You may not use this file except in compliance with the | |
| 9 | * License. Please obtain a copy of the License at | |
| 10 | * http://www.apple.com/publicsource and read it before using this file. | |
| 11 | * | |
| 12 | * This Original Code and all software distributed under the License are | |
| 13 | * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
| 14 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, | |
| 15 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| 16 | * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the | |
| 17 | * License for the specific language governing rights and limitations | |
| 18 | * under the License. | |
| 19 | * | |
| 20 | * @APPLE_LICENSE_HEADER_END@ | |
| 21 | */ | |
| 22 | /* | |
| 23 | * @OSF_COPYRIGHT@ | |
| 24 | */ | |
| 25 | /* | |
| 26 | * Mach Operating System | |
| 27 | * Copyright (c) 1991,1990,1989 Carnegie Mellon University | |
| 28 | * All Rights Reserved. | |
| 29 | * | |
| 30 | * Permission to use, copy, modify and distribute this software and its | |
| 31 | * documentation is hereby granted, provided that both the copyright | |
| 32 | * notice and this permission notice appear in all copies of the | |
| 33 | * software, derivative works or modified versions, and any portions | |
| 34 | * thereof, and that both notices appear in supporting documentation. | |
| 35 | * | |
| 36 | * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" | |
| 37 | * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR | |
| 38 | * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. | |
| 39 | * | |
| 40 | * Carnegie Mellon requests users of this software to return to | |
| 41 | * | |
| 42 | * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU | |
| 43 | * School of Computer Science | |
| 44 | * Carnegie Mellon University | |
| 45 | * Pittsburgh PA 15213-3890 | |
| 46 | * | |
| 47 | * any improvements or extensions that they make and grant Carnegie Mellon | |
| 48 | * the rights to redistribute these changes. | |
| 49 | */ | |
| 50 | ||
| 51 | /* | |
| 52 | */ | |
| 53 | #include <mach_kdb.h> | |
| 54 | #include <mach_debug.h> | |
| 55 | ||
| 56 | #include <mach/vm_map.h> | |
| 57 | #include <mach/vm_param.h> | |
| 58 | #include <mach/std_types.h> | |
| 59 | #include <mach/mach_types.h> | |
| 60 | #include <mach/mach_host_server.h> /* prototype */ | |
| 61 | ||
| 62 | #if MACH_KDB && MACH_DEBUG | |
| 63 | #include <vm/vm_map.h> | |
| 64 | #include <vm/vm_kern.h> | |
| 65 | #include <kern/host.h> | |
| 66 | #include <kern/task.h> | |
| 67 | #include <ddb/db_sym.h> | |
| 68 | #endif | |
| 69 | ||
| 70 | /* | |
| 71 | * Loads a symbol table for an external file into the kernel debugger. | |
| 72 | * The symbol table data is an array of characters. It is assumed that | |
| 73 | * the caller and the kernel debugger agree on its format. | |
| 74 | */ | |
| 75 | kern_return_t | |
| 76 | host_load_symbol_table( | |
| 77 | host_priv_t host_priv, | |
| 78 | task_t task, | |
| 79 | char * name, | |
| 80 | pointer_t symtab, | |
| 81 | mach_msg_type_number_t symtab_count) | |
| 82 | { | |
| 83 | #if !MACH_DEBUG || !MACH_KDB | |
| 84 | return KERN_FAILURE; | |
| 85 | #else | |
| 86 | kern_return_t result; | |
| 87 | vm_offset_t symtab_start; | |
| 88 | vm_offset_t symtab_end; | |
| 89 | vm_map_t map; | |
| 90 | vm_map_copy_t symtab_copy_object; | |
| 91 | ||
| 92 | if (host_priv == HOST_PRIV_NULL) | |
| 93 | return (KERN_INVALID_ARGUMENT); | |
| 94 | ||
| 95 | /* | |
| 96 | * Copy the symbol table array into the kernel. | |
| 97 | * We make a copy of the copy object, and clear | |
| 98 | * the old one, so that returning error will not | |
| 99 | * deallocate the data twice. | |
| 100 | */ | |
| 101 | symtab_copy_object = (vm_map_copy_t) symtab; | |
| 102 | result = vm_map_copyout( | |
| 103 | kernel_map, | |
| 104 | &symtab_start, | |
| 105 | vm_map_copy_copy(symtab_copy_object)); | |
| 106 | if (result != KERN_SUCCESS) | |
| 107 | return (result); | |
| 108 | ||
| 109 | symtab_end = symtab_start + symtab_count; | |
| 110 | ||
| 111 | /* | |
| 112 | * Add the symbol table. | |
| 113 | * Do not keep a reference for the task map. XXX | |
| 114 | */ | |
| 115 | if (task == TASK_NULL) | |
| 116 | map = VM_MAP_NULL; | |
| 117 | else | |
| 118 | map = task->map; | |
| 119 | if (!X_db_sym_init((char *)symtab_start, | |
| 120 | (char *)symtab_end, | |
| 121 | name, | |
| 122 | (char *)map)) | |
| 123 | { | |
| 124 | /* | |
| 125 | * Not enough room for symbol table - failure. | |
| 126 | */ | |
| 127 | (void) vm_deallocate(kernel_map, | |
| 128 | symtab_start, | |
| 129 | symtab_count); | |
| 130 | return (KERN_FAILURE); | |
| 131 | } | |
| 132 | ||
| 133 | /* | |
| 134 | * Wire down the symbol table | |
| 135 | */ | |
| 136 | (void) vm_map_wire(kernel_map, | |
| 137 | symtab_start, | |
| 138 | round_page(symtab_end), | |
| 139 | VM_PROT_READ|VM_PROT_WRITE, FALSE); | |
| 140 | ||
| 141 | /* | |
| 142 | * Discard the original copy object | |
| 143 | */ | |
| 144 | vm_map_copy_discard(symtab_copy_object); | |
| 145 | ||
| 146 | return (KERN_SUCCESS); | |
| 147 | #endif /* MACH_DEBUG && MACH_KDB */ | |
| 148 | } |