https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107500
--- Comment #4 from R. Diez <rdiezmail-gcc at yahoo dot de> ---
The 'constant_init' wrapper with the 'union' inside is a contrived hack, isn't
it? We may as well use a different hack then.
How about a combination of '__attribute__ constructor' and 'placement new' like
this?
uint8_t some_buffer[ sizeof( __cxa_eh_globals ) ];
// All objects with an init_priority attribute are constructed before any
// object with no init_priority attribute.
#define SOME_INIT_PRIORITY 200 // Priority range [101, 65535].
static __attribute__ ((constructor (SOME_INIT_PRIORITY))) void
MyHackForInitWithoutAtExitDestructor ( void ) throw()
{
// Placement new.
new ( some_buffer ) __cxa_eh_globals();
}
You would then need a 'get_eh_globals()' wrapper to return a pointer or a
reference to a '__cxa_eh_globals' object from 'some_buffer', by doing a type
cast. Everybody should then use the wrapper to access that singleton object.
