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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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2
hotspot/src/share/vm/classfile/altHashing.cpp
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@ -33,7 +33,7 @@
// return a random number, which is one of the possible hash code used for
// objects. We don't want to call the synchronizer hash code to install
// this value because it may safepoint.
intptr_t object_hash(klassOop k) {
intptr_t object_hash(Klass* k) {
intptr_t hc = k->java_mirror()->mark()->hash();
return hc != markOopDesc::no_hash ? hc : os::random();
}