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git.ipfire.org Git - thirdparty/binutils-gdb.git/blob - gdb/gdbserver/dll.c
1 /* Copyright (C) 2002-2014 Free Software Foundation, Inc.
3 This file is part of GDB.
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 3 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>. */
21 #define get_dll(inf) ((struct dll_info *)(inf))
23 struct inferior_list all_dlls
;
27 free_one_dll (struct inferior_list_entry
*inf
)
29 struct dll_info
*dll
= get_dll (inf
);
30 if (dll
->name
!= NULL
)
35 /* Find a DLL with the same name and/or base address. A NULL name in
36 the key is ignored; so is an all-ones base address. */
39 match_dll (struct inferior_list_entry
*inf
, void *arg
)
41 struct dll_info
*iter
= (void *) inf
;
42 struct dll_info
*key
= arg
;
44 if (key
->base_addr
!= ~(CORE_ADDR
) 0
45 && iter
->base_addr
== key
->base_addr
)
47 else if (key
->name
!= NULL
49 && strcmp (key
->name
, iter
->name
) == 0)
55 /* Record a newly loaded DLL at BASE_ADDR. */
58 loaded_dll (const char *name
, CORE_ADDR base_addr
)
60 struct dll_info
*new_dll
= xmalloc (sizeof (*new_dll
));
61 memset (new_dll
, 0, sizeof (*new_dll
));
63 new_dll
->entry
.id
= minus_one_ptid
;
65 new_dll
->name
= xstrdup (name
);
66 new_dll
->base_addr
= base_addr
;
68 add_inferior_to_list (&all_dlls
, &new_dll
->entry
);
72 /* Record that the DLL with NAME and BASE_ADDR has been unloaded. */
75 unloaded_dll (const char *name
, CORE_ADDR base_addr
)
78 struct dll_info key_dll
;
80 /* Be careful not to put the key DLL in any list. */
81 key_dll
.name
= (char *) name
;
82 key_dll
.base_addr
= base_addr
;
84 dll
= (void *) find_inferior (&all_dlls
, match_dll
, &key_dll
);
87 /* For some inferiors we might get unloaded_dll events without having
88 a corresponding loaded_dll. In that case, the dll cannot be found
89 in ALL_DLL, and there is nothing further for us to do.
91 This has been observed when running 32bit executables on Windows64
92 (i.e. through WOW64, the interface between the 32bits and 64bits
93 worlds). In that case, the inferior always does some strange
94 unloading of unnamed dll. */
98 /* DLL has been found so remove the entry and free associated
100 remove_inferior (&all_dlls
, &dll
->entry
);
101 free_one_dll (&dll
->entry
);
109 for_each_inferior (&all_dlls
, free_one_dll
);
110 all_dlls
.head
= all_dlls
.tail
= NULL
;