On Mon, 7 Nov 2011, Eric Botcazou wrote: > > This tries to find a way to prepend explicitly set command-line options > > by those implicitly set by the frontend (-fexceptions in this case). > > Unfortunately we don't seem to have a good way to extract this information > > easily, so for -fexceptions I hope all frontends set that during > > init_options_struct. > > That's wrong for Ada: it is set in gnat_init_gcc_eh and cannot be set earlier > because we support run time selection of the EH scheme.
That's called from gigi () - where is that called from? Is that from before post_options? Where does Ada arrange for properly initializing the backed EH? We do have too many option related langhooks ... we do lang_hooks.init_options_struct () /* decode options to cl_options */ lang_hooks.init_options () /* process decoded options. */ lang_hooks.post_options (). why can't gigi set flag_exceptions from lang_hooks.init_options ()? I can trivially change the patch to use global_options.x_flag_exceptions, but then we get redudnant -fexception flags (not that I would care). Just looking for a more general solution (but I note that Ada lacks some conversion to the new cl_decoded_options facility anyways ...) Richard.
