https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59856
--- Comment #8 from Josh Triplett <josh at joshtriplett dot org> --- (In reply to PaX Team from comment #5) > (In reply to Josh Triplett from comment #4) > > Could you represent __context__ as a new GCC builtin? Would that make this > > any easier? > > it can be a builtin or just a regular function declaration, the latter is > easy to create from a plugin too. Except as Tom noted, GCC will throw away a regular function declaration early on, whereas it can handle a builtin differently. > > So, I suspect the unfortunate answer is that Linux would probably want to > > ship the plugin as C/C++ and build it at build time if enabled. (Or we > > could > > integrate this functionality into GCC itself.) > > since PaX already has a checker plugin i subscribed to this bug a while ago > but completely forgot about it until now ;P. in any case, i've begun to work > on this along a somewhat different angle: instead of adding completely new > machinery to detect context imbalances i'd like to reuse existing gcc passes > to compute this property, we'll see how it goes. Interesting idea. What'd you have in mind?
