gmake to compile this code, but I'm stuck on this error message:
+ as kern/entry.S
kern/entry.S: Assembler messages:
kern/entry.S:55: Error: unsupported for `ljmp'
gmake: * [obj/kern/entry.o] Error 1
How can I fix it?
The error message is from the assembler. In assembly language there are relatively few restrictions, apart from specifying wrong instructions or addressing modes that that operand doesn't handle, almost anything goes. Look for the above mistakes. Or running the wrong assembler (32-bit on 64-bit code, or viceversa).