Re: Prebinding for DragonFly/FreeBSD-4
Lately Matthew N. Dodd told: Prebinding on a per executable basis rather than a per object (ELF executable or library) means that when you go to prebind KDE (for example) you run /var out of diskspace :/ Yes, that might be true. How about this approach: (doesn't cope with cyclic ``needs'' yet) - assign every .so a base address so that no collisions happen for every binary considered Then, for every binary: - start with resolving the last object (often libc), as if only this object was loaded - proceed to the next object (might be another .so or the binary) - there again, resolve stuff. if this changes resolved data in objects resolved before (global references...), save this data too, like deltas to the data of the object before. - loop This means: Every object has the data assigned which it ultimatively requests. If globals etc exists they will overridden by the next object which requested previous object. On load, just run the same way. First, load data of the last object (i.e. libc), then running the object list back to the binary, load data. Globals that get resolved another way than without object X will be overwriten by the patchup data for object X. Uhg, I hope I made myself (at least partly) clear enough to follow. cheers simon -- /\ http://corecode.ath.cx/#donate \ / \ ASCII Ribbon Campaign / \ Against HTML Mail and News pgp0.pgp Description: PGP signature
Prebinding for DragonFly/FreeBSD-4
I created patch for DragonFly/FreeBSD-4 for prebinding, based on mdodd@'s patch for FreeBSD-5. The main difference (apart from the target platform) is that the linker needn't be patched. Rtld now uses a hash function to get an unique ID for every ELF object. This has been tested under DragonFly, but should run on FreeBSD-4 too. Feedback appreciated :) cheers simon -- /\ http://corecode.ath.cx/#donate \ / \ ASCII Ribbon Campaign / \ Against HTML Mail and News pgp0.pgp Description: PGP signature
Re: Prebinding for DragonFly/FreeBSD-4
No-brainer. Get the patch from here: http://chlamydia.fs.ei.tum.de/~corecode/prebind.diff -- /\ http://corecode.ath.cx/#donate \ / \ ASCII Ribbon Campaign / \ Against HTML Mail and News pgp0.pgp Description: PGP signature
Re: Prebinding for DragonFly/FreeBSD-4
On Sat, 13 Sep 2003, Simon 'corecode' Schubert wrote: Feedback appreciated :) Prebinding on a per executable basis rather than a per object (ELF executable or library) means that when you go to prebind KDE (for example) you run /var out of diskspace :/ I don't yet have a totally satisfactory solution (mostly because I haven't really worked on prebinding for some time.) Hopefully you get some use out of this though. :) -- | Matthew N. Dodd | '78 Datsun 280Z | '75 Volvo 164E | FreeBSD/NetBSD | | [EMAIL PROTECTED] | 2 x '84 Volvo 245DL| ix86,sparc,pmax | | http://www.jurai.net/~winter | For Great Justice! | ISO8802.5 4ever | ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
