On Tue, Feb 15, 2005 at 09:41:22AM -0800, Richard Henderson wrote: > On Tue, Feb 15, 2005 at 05:27:15PM +0000, Andrew Haley wrote: > > So, now for my question: why do we not call __register_frame_info() or > > __register_frame_info_bases() ? > > Because in the normal case for C/C++, folks don't use that many > exceptions. So delaying doing anything until it's needed is a win. > > Obviously the normal case is different for Java. > > > We'd avoid a great many trips through > > dl_iterate_phdr () and _Unwind_IteratePhdrCallback(). > > While I still like using dl_iterate_phdr instead of > __register_frame_info_bases for totally aesthetic reasons, there have > been changes made to the dl_iterate_phdr interface since the gcc support > was written that would allow the dl_iterate_phdr results to be cached.
This may be exactly what you're suggesting, but could we do this instead of what we do now? - Search the registered FDEs - use dl_iterate_phdr to register and search any unregistered objects -- Daniel Jacobowitz CodeSourcery, LLC
