| /* Copyright (C) 2002-2013 Free Software Foundation, Inc. |
| |
| This file is part of GDB. |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 3 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| |
| #include "server.h" |
| |
| #define get_dll(inf) ((struct dll_info *)(inf)) |
| |
| struct inferior_list all_dlls; |
| int dlls_changed; |
| |
| static void |
| free_one_dll (struct inferior_list_entry *inf) |
| { |
| struct dll_info *dll = get_dll (inf); |
| if (dll->name != NULL) |
| free (dll->name); |
| free (dll); |
| } |
| |
| /* Find a DLL with the same name and/or base address. A NULL name in |
| the key is ignored; so is an all-ones base address. */ |
| |
| static int |
| match_dll (struct inferior_list_entry *inf, void *arg) |
| { |
| struct dll_info *iter = (void *) inf; |
| struct dll_info *key = arg; |
| |
| if (key->base_addr != ~(CORE_ADDR) 0 |
| && iter->base_addr == key->base_addr) |
| return 1; |
| else if (key->name != NULL |
| && iter->name != NULL |
| && strcmp (key->name, iter->name) == 0) |
| return 1; |
| |
| return 0; |
| } |
| |
| /* Record a newly loaded DLL at BASE_ADDR. */ |
| |
| void |
| loaded_dll (const char *name, CORE_ADDR base_addr) |
| { |
| struct dll_info *new_dll = xmalloc (sizeof (*new_dll)); |
| memset (new_dll, 0, sizeof (*new_dll)); |
| |
| new_dll->entry.id = minus_one_ptid; |
| |
| new_dll->name = xstrdup (name); |
| new_dll->base_addr = base_addr; |
| |
| add_inferior_to_list (&all_dlls, &new_dll->entry); |
| dlls_changed = 1; |
| } |
| |
| /* Record that the DLL with NAME and BASE_ADDR has been unloaded. */ |
| |
| void |
| unloaded_dll (const char *name, CORE_ADDR base_addr) |
| { |
| struct dll_info *dll; |
| struct dll_info key_dll; |
| |
| /* Be careful not to put the key DLL in any list. */ |
| key_dll.name = (char *) name; |
| key_dll.base_addr = base_addr; |
| |
| dll = (void *) find_inferior (&all_dlls, match_dll, &key_dll); |
| |
| if (dll == NULL) |
| /* For some inferiors we might get unloaded_dll events without having |
| a corresponding loaded_dll. In that case, the dll cannot be found |
| in ALL_DLL, and there is nothing further for us to do. |
| |
| This has been observed when running 32bit executables on Windows64 |
| (i.e. through WOW64, the interface between the 32bits and 64bits |
| worlds). In that case, the inferior always does some strange |
| unloading of unnamed dll. */ |
| return; |
| else |
| { |
| /* DLL has been found so remove the entry and free associated |
| resources. */ |
| remove_inferior (&all_dlls, &dll->entry); |
| free_one_dll (&dll->entry); |
| dlls_changed = 1; |
| } |
| } |
| |
| void |
| clear_dlls (void) |
| { |
| for_each_inferior (&all_dlls, free_one_dll); |
| all_dlls.head = all_dlls.tail = NULL; |
| } |