I can import an example Kinetis K64F Freedom board (FRDM-K64F) bareboard project, modify its linker file to something like the following (that is, relocate its interrupt vector table), and it still works fine:
vectorrom (RX): ORIGIN = 0x00001000, LENGTH = 0x00000400
cfmprotrom (R): ORIGIN = 0x00001400, LENGTH = 0x00000020
rom (RX): ORIGIN = 0x00001420, LENGTH = 0x000FeBE0
ram (RW): ORIGIN = 0x1FFF0000, LENGTH = 0x00040000
But I cannot do the same with an example MQX project; it crashes near __thumb_startup(). Upon loading the code, I see with the debugger that the table has moved to 0x1000, which is correct. But I suspect MQX or CodeWarrior (Kinetis Design Studio/KDS fails too) is not properly setting something else up.
Could someone please try loading the MQX 4 "hello world" project, confirm it executes, and then try using my linker file's MEMORY section above to see whether it still works?