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readonly got/plt/dtors?

PostPosted: Fri Jul 28, 2006 9:57 pm
by ralphy
I'm just curious on the state of readonly GOT/PLT/.dtors, are these implemented yet? I looked at the source and didn't see anything related to it unless I'm obviously missing something? hehe :) Are there plans to implement these in the furture perhaps? Thanks!

Re: readonly got/plt/dtors?

PostPosted: Mon Jul 31, 2006 4:38 am
by PaX Team
ralphy wrote:I'm just curious on the state of readonly GOT/PLT/.dtors, are these implemented yet? I looked at the source and didn't see anything related to it unless I'm obviously missing something? hehe :) Are there plans to implement these in the furture perhaps? Thanks!
these are userland changes and i didn't get that far yet. fortunately these particular features have been implemented in the GNU toolchain over the past 2-3 years, google up gcc/binutils support for GNU_RELRO and BIND_NOW in ELF binaries or just look at how hardened gentoo makes use of them. there's also better PLT support for alpha/ppc these days created by -msecure-plt.