Each of these constraints is specified in the header by an [os] or [mpu]
line. For the symbol table to be usable on a disassembly, both
constraints must be met:
* Either [os] is unset, no OS is used for disassembly, or the OS type is
the same as the [os] constraint (either "fx" or "cg");
* Either [mpu] is unset, the disassembled target has no specified MPU,
or the MPU type of the target is the same as the [mpu] constraint (eg
"sh7305").