In article e814db780812120817m39bdf309l9591f53c90cb38b1@mail.gmail.com, Filipe Brandenburger filbranden@gmail.com wrote:
Hi,
On Fri, Dec 12, 2008 at 11:10, Tony Mountifield tony@softins.clara.co.uk wrote:
From what I've been able to find, you can disable ASLR completely by putting the following line in /etc/sysctl.conf: kernel.randomize_va_space = 0
Thanks, I had just found that out, we tested it and indeed it works.
Alternatively, you can run your program with ASLR disabled by using setarch to invoke it: setarch `uname -m` -R yourprog <yourprogoptions>
I didn't know about this one, sounds good. I'll have a good look at "man setarch" and also try this out in the next couple of days.
Quick question: from "man setarch", the effect of using -R is "turns on ADDR_NO_RANDOMIZE". Is it possible to use this flag ADDR_NO_RANDOMIZE somewhere that will force that binary to use that option always? I've read something about ELF headers, I wonder if that is something that could be set there, and if it is, how do I change the ELF headers to set it?
I didn't get as far as looking up ADDR_NO_RANDOMIZE, so can't answer your question. But at least it's something more specific to google!
Glad the other suggestion worked.
Cheers Tony