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gdbserver crash when running 32bits exes on x64 Windows.

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* inferiors.c (find_inferior): Add function documentation.
        (unloaded_dll): Handle the case where the unloaded dll has not
        been previously registered in the dll list.
This commit is contained in:
Joel Brobecker 2010-02-02 04:24:26 +00:00
parent 546c74577f
commit 0718675c76
2 changed files with 29 additions and 3 deletions
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7
gdb/gdbserver/ChangeLog
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@ -1,3 +1,10 @@
2010-02-02 Nicolas Roche <roche@sourceware.org>
Joel Brobecker <brobecker@adacore.com>
* inferiors.c (find_inferior): Add function documentation.
(unloaded_dll): Handle the case where the unloaded dll has not
been previously registered in the dll list.
2010-02-01 Daniel Jacobowitz <dan@codesourcery.com>
* linux-arm-low.c (thumb_breakpoint_len): Delete.

25
gdb/gdbserver/inferiors.c
View file

@ -249,6 +249,9 @@ remove_thread (struct thread_info *thread)
free_one_thread (&thread->entry);
}
/* Find the first inferior_list_entry E in LIST for which FUNC (E, ARG)
returns non-zero. If no entry is found then return NULL. */
struct inferior_list_entry *
find_inferior (struct inferior_list *list,
int (*func) (struct inferior_list_entry *, void *), void *arg)
@ -366,9 +369,25 @@ unloaded_dll (const char *name, CORE_ADDR base_addr)
key_dll.base_addr = base_addr;
dll = (void *) find_inferior (&all_dlls, match_dll, &key_dll);
remove_inferior (&all_dlls, &dll->entry);
free_one_dll (&dll->entry);
dlls_changed = 1;
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;
}
}
#define clear_list(LIST) \