end(3C)         UNIX System V(C Programming Language Utilities)         end(3C)


NAME
      end, etext, edata - last locations in program

SYNOPSIS
      extern etext;

      extern edata;

      extern 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 address above the program text.

      edata The address of edata is the first address above the initialized
            data region.

      end   The address of end is the first address above the uninitialized
            data region.

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

NOTE
      When execution begins, the program break (the first location beyond the
      data) coincides with end, but the program break may be reset by the
      routines brk, malloc, the standard input/output library [see stdio(3S)],
      by the profile (-p) option of cc, and so on.  Thus, the current value of
      the program break should be determined by sbrk (0) [see brk(2)].























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