sunos man page for end

end(3C) 						   Standard C Library Functions 						   end(3C)

NAME
       end, _end, etext, _etext, edata, _edata - last locations in program

SYNOPSIS
       extern int _etext;

       extern int _edata;

       extern int _end;

DESCRIPTION
       These names refer neither to routines nor to locations with interesting contents; only their addresses are meaningful.

       _etext	       The address of _etext is the first location after the program text.

       _edata	       The address of _edata is the first location after the initialized data region.

       _end	       The address of _end is the first location after the uninitialized data region.

USAGE
       When  execution	begins,  the program break (the first location beyond the data) coincides with _end, but the program break may be reset by
       the  brk(2), malloc(3C), and the standard input/output library (see stdio(3C)), functions by the profile (-p) option of	cc(1B), and so on.
       Thus, the current value of the program break should be determined by sbrk ((char *)0).

       References  to  end,  etext, and edata, without a preceding underscore will be aliased to the associated symbol that begins with the under-
       score.

SEE ALSO
       cc(1B), brk(2), malloc(3C), stdio(3C)

SunOS 5.10							    1 Sep 2003								   end(3C)