[Bug libstdc++/64535] Emergency buffer for exception allocation too small

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64535

--- Comment #25 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to rguenther@suse.de from comment #18)
> But again - where can you catch exceptions thrown from global
> initializers / destructors?

Within those global constructors/destructors themselves:

struct Global {
  ~Global() {
    try {
      throw 1;
    } catch (...) {
    }
  }
} global;

Anyway, we should probably use an init_priority for the pool, because as well
as an order of destruction problem it's possible for a global constructor to
try to use the pool, and that must not happen before it has been initialized by
the constructor.