114 lines
3.1 KiB
C
114 lines
3.1 KiB
C
/* Copyright (C) 2002-2015 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"
|
|
#include "dll.h"
|
|
|
|
#define get_dll(inf) ((struct dll_info *)(inf))
|
|
|
|
/* An "unspecified" CORE_ADDR, for match_dll. */
|
|
#define UNSPECIFIED_CORE_ADDR (~(CORE_ADDR) 0)
|
|
|
|
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 != UNSPECIFIED_CORE_ADDR
|
|
&& 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);
|
|
clear_inferior_list (&all_dlls);
|
|
}
|