Address Map Modifier
The adb(1) commands to modify segments of the virtual address map and object
file map are not present in MDB. Specifically, the /m, /*m, ?m,
and ?*m format specifiers are not recognized or supported by MDB. These specifiers
were used to manually modify the valid addressable range of the current object
and core files. MDB properly recognizes the addressable range of such files automatically, and
updates the ranges when a live process is
being debugged, so these commands are no longer necessary.