Messages in this thread | | | From | Florian Weimer <> | Subject | Re: [PATCH] Undo some of the pseudo-security madness | Date | Sat, 24 Feb 2007 14:49:34 +0100 |
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* Samium Gromoff:
>> > Lisp environments can produce standalone executables >> >> If you've got a stand-alone executable, you don't need MAP_FIXED. The >> ELF loader maps the program at a fixed address anyway (at least on >> i386 and x86_64, I haven't checked others). > > Not so. > > The thing is that the picture is of two pieces: > > - the executable > - the unrelocatable lisp core (which is unrelocatable by the virtue > of non-PIC code) which is mapped into the AS of the executable. > > It is the latter which breaks, as its map can overlap with randomized > pieces of the executable (along with its libraries).
I think it boils down to the question if you can use ELF relocations to create a relocatable (but not necessarily position-independent) object that ld can link with the SBCL run-time system to produce an executable. This executable would truly be stand-alone because no separate core file is required anymore. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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