archive/jdk
1
0
Fork 0
mirror of https://github.com/openjdk/jdk.git synced 2025-09-23 04:24:49 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

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

Browse source 
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
Download patch file Download diff file Expand all files Collapse all files

23
hotspot/src/share/vm/runtime/jniHandles.cpp
View file

@ -1,5 +1,5 @@
/*
* Copyright (c) 1998, 2011, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1998, 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
@ -111,19 +111,6 @@ jobject JNIHandles::make_weak_global(Handle obj) {
return res;
}
jmethodID JNIHandles::make_jmethod_id(methodHandle mh) {
return (jmethodID) make_weak_global(mh);
}
void JNIHandles::change_method_associated_with_jmethod_id(jmethodID jmid, methodHandle mh) {
MutexLocker ml(JNIGlobalHandle_lock); // Is this necessary?
Handle obj = (Handle)mh;
oop* jobj = (oop*)jmid;
*jobj = obj();
}
void JNIHandles::destroy_global(jobject handle) {
if (handle != NULL) {
@ -140,10 +127,6 @@ void JNIHandles::destroy_weak_global(jobject handle) {
}
}
void JNIHandles::destroy_jmethod_id(jmethodID mid) {
destroy_weak_global((jobject)mid);
}
void JNIHandles::oops_do(OopClosure* f) {
f->do_oop(&_deleted_handle);
@ -162,8 +145,8 @@ void JNIHandles::initialize() {
EXCEPTION_MARK;
// We will never reach the CATCH below since Exceptions::_throw will cause
// the VM to exit if an exception is thrown during initialization
klassOop k = SystemDictionary::Object_klass();
_deleted_handle = instanceKlass::cast(k)->allocate_permanent_instance(CATCH);
Klass* k = SystemDictionary::Object_klass();
_deleted_handle = InstanceKlass::cast(k)->allocate_instance(CATCH);
}