Re: [PATCH v2 0/3] MR7204: Fix running arm+arm64 in old wow64 mode

[Jacek Caban (＠jacek)]

Jacek Caban (@jacek) commented about dlls/ntdll/unix/loader.c:
>  if (machine == current_machine) return NULL;
>
>  /* try the 64-bit loader */
> - if (current_machine == IMAGE_FILE_MACHINE_I386 && machine == IMAGE_FILE_MACHINE_AMD64)
> - if ((current_machine == IMAGE_FILE_MACHINE_I386 && machine == IMAGE_FILE_MACHINE_AMD64) ||
> -
>    (current_machine == IMAGE_FILE_MACHINE_ARMNT && machine == IMAGE_FILE_MACHINE_ARM64))

It might be more flexible to avoid restricting `machine` to `IMAGE_FILE_MACHINE_ARM64` and instead check for something like `machine != current_machine`. This would allow a 64-bit loader to use the new wow for x86 emulation while still using the old wow for 32-bit ARM.