dbghelp: Always ensure that 64bit module functions use real 64bit addresses.

dlls/dbghelp/dbghelp_private.h

@@ -535,7 +535,7 @@ extern const WCHAR      S_WineLoaderW[] DECLSPEC_HIDDEN;
 extern const WCHAR      S_SlashW[] DECLSPEC_HIDDEN;
 
 extern struct module*
-                    module_find_by_addr(const struct process* pcs, unsigned long addr,
+                    module_find_by_addr(const struct process* pcs, DWORD64 addr,
                                         enum module_type type) DECLSPEC_HIDDEN;
 extern struct module*
                     module_find_by_nameW(const struct process* pcs,

dlls/dbghelp/module.c

@@ -388,7 +388,7 @@ BOOL module_get_debug(struct module_pair* pair)
  * either the addr where module is loaded, or any address inside the 
  * module
  */
-struct module* module_find_by_addr(const struct process* pcs, unsigned long addr, 
+struct module* module_find_by_addr(const struct process* pcs, DWORD64 addr,
                                    enum module_type type)
 {
     struct module*      module;
@@ -659,8 +659,8 @@ DWORD64 WINAPI  SymLoadModuleExW(HANDLE hProcess, HANDLE hFile, PCWSTR wImageNam
 DWORD64 WINAPI SymLoadModule64(HANDLE hProcess, HANDLE hFile, PCSTR ImageName,
                                PCSTR ModuleName, DWORD64 BaseOfDll, DWORD SizeOfDll)
 {
-    if (!validate_addr64(BaseOfDll)) return FALSE;
-    return SymLoadModule(hProcess, hFile, ImageName, ModuleName, (DWORD)BaseOfDll, SizeOfDll);
+    return SymLoadModuleEx(hProcess, hFile, ImageName, ModuleName, BaseOfDll, SizeOfDll,
+                           NULL, 0);
 }
 
 /******************************************************************
@@ -730,7 +730,7 @@ BOOL WINAPI SymUnloadModule64(HANDLE hProcess, DWORD64 BaseOfDll)
     pcs = process_find_by_handle(hProcess);
     if (!pcs) return FALSE;
     if (!validate_addr64(BaseOfDll)) return FALSE;
-    module = module_find_by_addr(pcs, (DWORD)BaseOfDll, DMT_UNKNOWN);
+    module = module_find_by_addr(pcs, BaseOfDll, DMT_UNKNOWN);
     if (!module) return FALSE;
     return module_remove(pcs, module);
 }