http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60566
--- Comment #7 from Jason Merrill <jason at gcc dot gnu.org> --- (In reply to Markus Trippelsdorf from comment #4) > part.ii is part of a library called libkparts.so.4.12.3. > When I compile part.cpp with a compiler before r208573 and link the > library (all other objects files for the lib are unchanged) and then install > the library to my system /usr/lib folder, Okular starts and works fine. > > If I compile part.cpp with a compiler _after_ r208573 and link the > library and install it, Okular shows a popup "Unable to find the Okular > component". Just to be clear, you've tested specifically 208572 vs 208573? Recompiling just that one file? > Looking at the library, the only difference are four additional > symbols in the good version: > > _ZThn16_N6KParts13ReadWritePartD0Ev > _ZThn16_N6KParts13ReadWritePartD1Ev > _ZTv0_n24_N6KParts13ReadWritePartD0Ev > _ZTv0_n24_N6KParts13ReadWritePartD1Ev These are thunks to the destructor, which are unneeded if the (constructor) vtable doesn't refer to them anymore. (In reply to Jakub Jelinek from comment #5) > So, can you perhaps with the part_good.s put a breakpoint on the 2 dtors and > 4 thunks to those, and see if they are ever called during the startup of > Okular? Or with part_bad, put a breakpoint on __cxa_pure_virtual?
