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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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8
hotspot/src/share/vm/runtime/deoptimization.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
@ -332,9 +332,9 @@ class Deoptimization : AllStatic {
static void popframe_preserve_args(JavaThread* thread, int bytes_to_save, void* start_address);
private:
static methodDataOop get_method_data(JavaThread* thread, methodHandle m, bool create_if_missing);
static MethodData* get_method_data(JavaThread* thread, methodHandle m, bool create_if_missing);
// Update the mdo's count and per-BCI reason bits, returning previous state:
static ProfileData* query_update_method_data(methodDataHandle trap_mdo,
static ProfileData* query_update_method_data(MethodData* trap_mdo,
int trap_bci,
DeoptReason reason,
//outputs:
@ -355,7 +355,7 @@ class Deoptimization : AllStatic {
// Note: Histogram array size is 1-2 Kb.
public:
static void update_method_data_from_interpreter(methodDataHandle trap_mdo, int trap_bci, int reason);
static void update_method_data_from_interpreter(MethodData* trap_mdo, int trap_bci, int reason);
};
class DeoptimizationMarker : StackObj { // for profiling