public void addStackStorage(long offset, int length) {
		if (stackStorage == null) {
			stackStorage = new Varnode(program.getStackSpace().getAddress(offset), length);
		}
		else {
			if (stackStorage.getOffset() + stackStorage.getSize() > offset) {
				throw new IllegalArgumentException("Overlaps previous stack allocation");
			}
			stackStorage = new Varnode(program.getStackSpace().getAddress(stackStorage.getOffset()),
				(int) (offset - stackStorage.getOffset() + length));
		}
	}
Assign storage for this variable at a stack offset.

@param offset stack offset
Ghidra/Features/Base/src/main/java/ghidra/app/util/bin/format/dwarf/DWARFVariable.java