RE: Nuking unexec

>>>>>> "Ben" == Ben Wing <ben(a)666.com&gt; writes: > > Ben> I find that hard to believe; I wonder what his reasons are ... > > Some of the objects that get dumped contain function pointers. In the > IA64 ABI, these point to a descriptor containing { &code, > &data_context }. At the very least data_context varies between > machines and across reboots (I'm not sure about per process). > Data_context is so machine dependant that there is no useful way that > we can get access to it in XEmacs. Note that only dynamic assignments are a problem, because their function descriptors are allocated at runtime (during initial relocation), thus their address differ before and after dumping. (This is unlike powerpc64 where every function has a descriptor preallocated.) For static initialisations the corresponding descriptors are also statically allocated and won't change. Thus for example C++ vtables would not pose a problem.