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6964458: Reimplement class meta-data storage to use native memory

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Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes

Co-authored-by: Stefan Karlsson <stefan.karlsson@oracle.com>
Co-authored-by: Mikael Gerdin <mikael.gerdin@oracle.com>
Co-authored-by: Tom Rodriguez <tom.rodriguez@oracle.com>
Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland
This commit is contained in:
Jon Masamitsu 2012-09-01 13:25:18 -04:00 • committed by Coleen Phillimore
parent 36eee7c8c8
commit 5c58d27aac
853 changed files with 26124 additions and 82956 deletions
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12
hotspot/src/share/vm/runtime/javaCalls.cpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@ -89,7 +89,6 @@ JavaCallWrapper::JavaCallWrapper(methodHandle callee_method, Handle receiver, Ja
_receiver = receiver();
#ifdef CHECK_UNHANDLED_OOPS
THREAD->allow_unhandled_oop(&_callee_method);
THREAD->allow_unhandled_oop(&_receiver);
#endif // CHECK_UNHANDLED_OOPS
@ -154,7 +153,6 @@ JavaCallWrapper::~JavaCallWrapper() {
void JavaCallWrapper::oops_do(OopClosure* f) {
f->do_oop((oop*)&_callee_method);
f->do_oop((oop*)&_receiver);
handles()->oops_do(f);
}
@ -191,7 +189,7 @@ void JavaCalls::call_default_constructor(JavaThread* thread, methodHandle method
assert(method->name() == vmSymbols::object_initializer_name(), "Should only be called for default constructor");
assert(method->signature() == vmSymbols::void_method_signature(), "Should only be called for default constructor");
instanceKlass* ik = instanceKlass::cast(method->method_holder());
InstanceKlass* ik = InstanceKlass::cast(method->method_holder());
if (ik->is_initialized() && ik->has_vanilla_constructor()) {
// safe to skip constructor call
} else {
@ -206,7 +204,7 @@ void JavaCalls::call_default_constructor(JavaThread* thread, methodHandle method
void JavaCalls::call_virtual(JavaValue* result, KlassHandle spec_klass, Symbol* name, Symbol* signature, JavaCallArguments* args, TRAPS) {
CallInfo callinfo;
Handle receiver = args->receiver();
KlassHandle recvrKlass(THREAD, receiver.is_null() ? (klassOop)NULL : receiver->klass());
KlassHandle recvrKlass(THREAD, receiver.is_null() ? (Klass*)NULL : receiver->klass());
LinkResolver::resolve_virtual_call(
callinfo, receiver, recvrKlass, spec_klass, name, signature,
KlassHandle(), false, true, CHECK);
@ -346,11 +344,11 @@ void JavaCalls::call_helper(JavaValue* result, methodHandle* m, JavaCallArgument
#ifdef ASSERT
{ klassOop holder = method->method_holder();
{ Klass* holder = method->method_holder();
// A klass might not be initialized since JavaCall's might be used during the executing of
// the <clinit>. For example, a Thread.start might start executing on an object that is
// not fully initialized! (bad Java programming style)
assert(instanceKlass::cast(holder)->is_linked(), "rewritting must have taken place");
assert(InstanceKlass::cast(holder)->is_linked(), "rewritting must have taken place");
}
#endif