as: Size

 
 7.86 '.size'
 ============
 
 This directive is used to set the size associated with a symbol.
 
 COFF Version
 ------------
 
 For COFF targets, the '.size' directive is only permitted inside
 '.def'/'.endef' pairs.  It is used like this:
 
      .size EXPRESSION
 
 ELF Version
 -----------
 
 For ELF targets, the '.size' directive is used like this:
 
      .size NAME , EXPRESSION
 
    This directive sets the size associated with a symbol NAME.  The size
 in bytes is computed from EXPRESSION which can make use of label
 arithmetic.  This directive is typically used to set the size of
 function symbols.