bundleOfCaller.m

/*
We have to jump through some serious hoops to get the bundle of the caller; 
[self class] doesn't work reliably when our classes are generated at the runtime.

Instead, we fetch the return address, look up the container image, 
and attempt to match it against a loaded bundle.
*/

NSBundle *bundle = nil;
void *p = __builtin_return_address(0);
if (p != NULL) {
	/* Fetch symbol/image info for our caller */
	Dl_info di;
	if(dladdr(p, &di) == 0) {
		NSLog(@"Could not find image information for the caller's address (%p): %s", 
			p, dlerror());
	}

	if(di.dli_sname == NULL) {
		NSLog(@"Could not find image path for the caller's address (%p)", p);
		abort();
	}

	/* Try to find a matching bundle */
	NSString *execPath = [NSString stringWithCString: di.dli_fname encoding:NSUTF8StringEncoding];
	NSArray *allBundles = [[NSBundle allFrameworks] arrayByAddingObjectsFromArray:[NSBundle allBundles]];
	for(NSBundle *b in allBundles) {
		if(![b.executablePath isEqualToString:execPath]) {
			continue;
		}

		bundle = b;
		break;
	}
}