SECTIONS 
{ 
  .text : 
  { 
    *(.text) 
    }  
_etext = . ;
  .data  SIZEOF(.text) + ADDR(.text):
  { 
    *(.data) 
    }  
_edata = .; 
  .bss   SIZEOF(.data) + ADDR(.data) :    
  { 
   _bss_start = . ;
   *(.bss)  
   [COMMON] 
    } 
_end = . ; 
}