Presumably you would have to get a source version and compile it against a kernel source tree configured the same as your “/proc/config.gz”. I don’t know what all is provided in “linux-tools-*”, but it appears to be dependent upon the exact hardware-dependent parts of the kernel which will differ between every single version (there are lots of versions available even for the same kernel release…the different patch levels all have their own release).
I couldn’t tell you what is needed, but you might ask whoever the package provider is if there is a source version available which can be compiled against custom modified 4.4.38 kernels when you have the full kernel source and configuration available.
Alternatively you might want to mention some specific goal from a specific part of the package you want to accomplish…there may be an alternate way of doing it.