Linux ADSM Mini-Howto
You will have to use the SCO binary, and install the iBCS2-emulator for running ADSM. This description is for ADSM v2r1.
At the time if this writing, I am only aware of a version which works with the i386 version of Linux.
2. Installing the iBCS module
The iBCS2 module is available from ftp://tsx-11.mit.edu/pub/linux/BETA/ibcs2. If you are running kernel version 1.2.13, get ibcs-1.2-950721.tar.gz, unpac it and apply the patches ibcs-1.2-950808.patch1 and ibcs-1.2-950828.patch2. You can then type "make" and install the iBCS modlue with "insmod".
For a 2.0 kernel version, get