Re: [Gcl-devel] Re: function addresses and ld.so

[Matthias Urlichs <smurf@smurf.noris.de>]

Hi, Camm Maguire wrote:

>  Therefore,
> Debian gcl/maxima/acl2 packages need a rebuild when the underlying
> shared libraries change (currently libc, libm, libreadline4,
> libncurses5, and libgmp3), at least on these architectures.

Ouch. Note that this problem also arises on systems which, for security
reasons, randomize the location libc is loaded.

It would also increase the number of packages which depend on a particular
libc version. I consider that to be a Bad Thing, as this number ideally
should be ZERO.

I would just replace all those libc calls wint an indirect jump function:

static int do_open(...) { return open(...); }
...
	image_data->open_func = do_open;

or something like that.

-- 
Matthias Urlichs   |   {M:U} IT Design @ m-u-it.de   |  smurf@smurf.noris.de
Disclaimer: The quote was selected randomly. Really. | http://smurf.noris.de
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