Without the changes, the test passes or fails based on the binutils version being used. v2.35 (used on the Debian 11 testbot) gives 64-bit DLLs an image base under 4GB, and the test always passes. On a system with binutils 2.37 or later, 64-bit DLLs are based above 4GBs, and the test will fail. The map_view() change fixes native DLLs, and virtual_map_section() for builtin DLLs. I wasn't sure how to test a native DLL. This showed up under Wow64 when running the 64-bit Notepad++ installer (a 32-bit EXE), which runs 32-bit regsvr32 to register a 64-bit DLL. regsvr32 calls LoadLibraryExW() with LOAD_LIBRARY_AS_IMAGE_RESOURCE, which was returning a truncated pointer to the DLLs base address. Accessing this then crashed. -- https://gitlab.winehq.org/wine/wine/-/merge_requests/269