Re: Is it possible to make the whole image above 4G on a 64 bit machine?

[ééä (Wei-Ren Chen) <chenwj at iis dot sinica dot edu dot tw>]

Hi H.J.,

> >   If it's possible to make the whole image above 4G, how I can do that?
> > If not, could you explain why? Thanks.
> >
> 
> You must use PIE to place an executable above 4G.

  Thanks for your tip, it works! I did following,

$ gcc -Wl,-Ttext-segment=0x80000000 -fPIE -pie test.c -o test

But why the linker gave me those errors? Although I know pie makes program
position independent, so that it can be loaded at any address space, I don't
know why linker complains, does it find something wrong while linking against
those libraries (I see the errors, but don't understanding it...)? Would
you like to shed some light on it? Thanks. :-)

Regards,
chenwj

-- 
Wei-Ren Chen (ééä)
Computer Systems Lab, Institute of Information Science,
Academia Sinica, Taiwan (R.O.C.)
Tel:886-2-2788-3799 #1667
Homepage: http://people.cs.nctu.edu.tw/~chenwj