On Mon, 2015-03-16 at 18:31 +0100, Jakub Jelinek wrote: > On Mon, Mar 16, 2015 at 01:24:19PM -0400, Adam Jackson wrote: > > On Fri, 2015-03-13 at 12:14 +0100, Florian Weimer wrote: > > PIE does alter symbol resolution, though not in a particularly big way. > > In a normal executable, taking the address of a global function takes > > the address of the definition found in the executable itself, if any; in > > a PIE, you take the address of the first definition found by the runtime > > linker. Normally that's not a correctness issue since the executable > > usually ends up as the first object searched, but it does mean an > > LD_PRELOAD can override more symbols than it used to because the > > (now-PIE) executable is importing more symbols than before. > > ??? PIE is the first object in symbol search scope, before LD_PRELOAD, > identically to normal executables. Yeah, sorry, I was reading readelf's output wrong. Those symbols get emitted as relocations (where they wouldn't for an executable), but they resolve to the providing object. My error, I apologize. - ajax -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct
