On Fri, Dec 02, 2005 at 01:18:27AM +0100, Blaisorblade wrote:
> I want to add the int3 too - that's the only way to be deterministically
> sure that GCC doesn't use %ebp after the unmap.
Well, my current patch branches to the int3. gcc will have to be pretty
imaginative to involve ebp in a branch.
> Yes, mostly.... there is also the problem with hardened toolchains (two
> different reports), which makes inline syscalls bleach (hardened toolchains
> use PIE code and need to have %EBX reserved for GOT/PLT handling), but I
> currently I do not consider fixing it before I can reproduce it.
Yeah, I encountered this in a different context.
Jeff
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