[Bug lto/50394] [meta-bug] Issues with building libreoffice with LTO

[hubicka at ucw dot cz]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50394

--- Comment #21 from Jan Hubicka <hubicka at ucw dot cz> 2011-09-21 13:08:43 UTC ---
> is altogether more hairy - we create at run-time C++ vtables packed with
> trampolines so we can intercept / model native C++ objects and interact with
> them via python etc. that would need some more intense debugging love I guess.

Hmm, this sounds scary. (I remember Kendy explaining me this years back when
OOo
was ported to x86_64.) More or less everything that is reachable externally
ought to
be annotated with used/externally_visible attributes or the assembly wrappers
has
to be visible at linktime.  Is there some short overview of the machinery?
(or could you explain it somehow? :)

Honza