What's the C protype for the variables defined in a linker script

["PRC" <panruochen@xxxxxxxxx>]

The linker script:

**************************************************************************
SECTIONS
{
  .text 0x80000000 :   
  {
    _ftext = ABSOLUTE(.) ;	/* Start of code and read-only data	*/
    _dstart = ABSOLUTE(.) ;
   ...
**************************************************************************

What is the protype for the symbol `_ftext', if I want to refer to it in the C program?
Is it `extern unsigned char _ftext[];' ?

Thanks