end(3C)

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.

References

brk(2), cc(1), malloc(3C), Intro(3S)

Notices

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 Intro(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)].