END(3) Library Functions Manual END(3)
NAME
end, etext, edata - last locations in program
SYNOPSIS
extern int etext;
extern int edata;
extern int end, _end;
DESCRIPTION
These names refer neither to routines nor to locations with interesting contents. The address of etext is the first address above the pro-
gram text, edata above the initialized data region, and end above the uninitialized data region. _end is the same as end, but in the
implementers name space, i.e. for use in libraries.
When execution begins, the program break coincides with end, but it is reset by the routines brk(2), malloc(3), standard input/output
(stdio(3)), etc. The current value of the program break is reliably returned by `sbrk(0)', see brk(2).
SEE ALSO
brk(2), malloc(3).
7th Edition May 12, 1986 END(3)
