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BSD 2.11 - man page for edata (bsd section 3)

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END(3)											   END(3)

       end, etext, edata - last locations in program

       extern end;
       extern etext;
       extern edata;

       These  names  refer  neither  to routines nor to locations with interesting contents.  The
       address of etext is the first address above the program text, edata above the  initialized
       data region, and end above the uninitialized data region.

       When  execution	begins, the program break coincides with end, but it is reset by the rou-
       tines brk(2), malloc(3), standard input/output (stdio(3S)), the	profile  (-p)  option  of
       cc(1), etc.  The current value of the program break is reliably returned by `sbrk(0)', see

       brk(2), malloc(3)

7th Edition				   May 12, 1986 				   END(3)
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