cortex-m-rt: Add alignment check for the .vector_table

Author: Emil Fresk

cortex-m-rt/link.x.in

@@ -261,6 +261,11 @@ Possible solutions, from most likely to less likely:
 may be enabling it)
 - Supply the interrupt handlers yourself. Check the documentation for details.");
 
+ASSERT((ADDR(.vector_table) % MAX(128, (1 << (LOG2CEIL(SIZEOF(.vector_table)))))) == 0, "
+ERROR(cortex-m-rt): The interrupt vectors are misaligned. It needs to be aligned to the largest of:
+- 128 byte
+- Next power of two from the size of the vector table");
+
 /* ## .text */
 ASSERT(ADDR(.vector_table) + SIZEOF(.vector_table) <= _stext, "
 ERROR(cortex-m-rt): The .text section can't be placed inside the .vector_table section