Qbicc Initialization Steps

BT?	RT?	Description	initLevel	OpenJDK Location	Qbicc Location	OS
	Y	Initialize processor count, page size, etc.	0	os::init_before_ergo		All
	Y	OS-specific native thread library and signal intialization	0	os::init_2		Linux,Windows,Posix,...
	Y	Attach the Java main thread to the main os thread	0	Threads::create_vm		All
Y		Initialize core Java classes	0	Threads::initialize_java_lang_classes	VmImpl.initialize	All
Y		setJavaLangAccess	0	System.initPhase1		All
Y		SystemProps.initProperties	0	System.initPhase1		All
Y		System.createProperties	0	System.initPhase1		All
Y	Y	Initialize stdin, stdout, stderr	0	System.initPhase1		All
	Y	Terminator.setup	0	System.initPhase1		All
	Y	VM.initializeOSEnvironment	0	System.initPhase1		No-op except on Windows
Y		add MainThread to ThreadGroup	0	System.initPhase1		All
	Y	Lots of HotSpot native initialization we can probably ignore, but needs to be checked to be sure	1	Threads::create_vm
Y		Initialize JSR292 core classes	1	Threads::initialize_jsr292_core_classes	VmImpl.initialize?	All
Y		ModuleBootstrap.boot()	1	System.initPhase2		All
Y		Initialize SecurityManager	2	System.initPhase2		All
Y		Initialize System ClassLoader	3	System.initPhase3		All
Y		Initialize ThreadContextClassLoader	3	System.initPhase3		All
	Y	Run post-VM startup hooks	4	Threads::create_vm		All

Some general patterns to deal with:

methods that create/start service Threads, for example like java.lang.ref.Reference. We at least need to defer the Thread.start() to runtime, even if we chose to optimize application startup by instantiating the Threads at build time.
Serializing hash-based data structures which have used the default hashcode value computed by the build-time VM.
Objects in the build-time heap that refer to native resources (eg file descriptors). We need to somehow invalidate these and/or guide the user to provide runtime initialization annotations that defer their creation to application runtime.

Other things that happen in OpenJDK/HotSpot startup that we might need to support

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