On 5/8/19 11:47 PM, Gerd Hoffmann wrote: > So, from looking at the patch it seems you need two mappings of the same > page, one writable and one executable. > > Or, maybe it is also possible with one mapping which is writable first > when you fill it with code, then gets flipped over to executable when > you are done with the initialization and want use it. > > Is that correct?
That's certainly the way I read that patch. > I suspect supporting that in tcg isn't exactly trivial. It shouldn't be too hard, if required. All of the writing to the buffer is isolated to a couple of inline functions. I do wonder if using paxctl -m as a part of the build process for affected *BSD isn't just as easy? r~
