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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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7
hotspot/src/share/vm/code/codeCache.hpp
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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
@ -80,6 +80,7 @@ class CodeCache : AllStatic {
static void blobs_do(void f(CodeBlob* cb)); // iterates over all CodeBlobs
static void blobs_do(CodeBlobClosure* f); // iterates over all CodeBlobs
static void nmethods_do(void f(nmethod* nm)); // iterates over all nmethods
static void alive_nmethods_do(void f(nmethod* nm)); // iterates over all alive nmethods
// Lookup
static CodeBlob* find_blob(void* start);
@ -170,7 +171,7 @@ class CodeCache : AllStatic {
static void set_needs_cache_clean(bool v) { _needs_cache_clean = v; }
static void clear_inline_caches(); // clear all inline caches
static nmethod* find_and_remove_saved_code(methodOop m);
static nmethod* find_and_remove_saved_code(Method* m);
static void remove_saved_code(nmethod* nm);
static void speculatively_disconnect(nmethod* nm);
@ -181,7 +182,7 @@ class CodeCache : AllStatic {
#endif // HOTSWAP
static void mark_all_nmethods_for_deoptimization();
static int mark_for_deoptimization(methodOop dependee);
static int mark_for_deoptimization(Method* dependee);
static void make_marked_nmethods_zombies();
static void make_marked_nmethods_not_entrant();