[PATCH]: Support GC sections for HC11/HC12

[Subrat Kr. Panda]

Hello all,
  I am retargetting gas for a given target. For that I have defined some
debugging directives like say "functionsize"
 it appears as follows in the assembly 
    .functionSize l1 - l2

where l1 is is a label marking the start and l2 marks the end of the
function. Now I am in a fix how do i get the value in the second pass in
directive handling. Is there some way to deal with this.

subrat