Messages in this thread | | | From | Kevin Puetz <> | Subject | Re: The address displayed by ldd | Date | Sat, 12 Mar 2005 18:19:41 -0600 |
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It's the load address of the library, and it's basically not meant to be a stable value. It will at least depend on the load order and size of the libraries, and it may in fact be intentionally randomized each run as a security measure against ret2libc type attacks (PaX, execshield, etc all do this, as does prelink everytime it re-prelinks libraries). It's entirely plausible for it to change from run to run, much less machine to machine.
gan_xiao_jun@yahoo.com wrote:
> Hi, > > I have a small question, > I am not sure if it belongs to kernel. > I often use ldd to find librarys needed. > In some systems,the address display by ldd not > changes, > But in other systems, it changes. > > What is the reason of the difference? > Is it cause by some setting in kernel? > > Thanks in advance. > gan > > > > > __________________________________ > Do you Yahoo!? > Yahoo! Mail - Find what you need with new enhanced search. > http://info.mail.yahoo.com/mail_250
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