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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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29
hotspot/src/share/vm/compiler/compileLog.cpp
View file

@ -1,5 +1,5 @@
/*
* Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2002, 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
@ -26,7 +26,7 @@
#include "ci/ciMethod.hpp"
#include "compiler/compileLog.hpp"
#include "memory/allocation.inline.hpp"
#include "oops/methodOop.hpp"
#include "oops/method.hpp"
#include "runtime/mutexLocker.hpp"
#include "runtime/os.hpp"
@ -99,7 +99,7 @@ void CompileLog::pop_tag(const char* tag) {
// ------------------------------------------------------------------
// CompileLog::identify
int CompileLog::identify(ciObject* obj) {
int CompileLog::identify(ciBaseObject* obj) {
if (obj == NULL) return 0;
int id = obj->ident();
if (id < 0) return id;
@ -121,8 +121,10 @@ int CompileLog::identify(ciObject* obj) {
_identities[id] = 1; // mark
// Now, print the object's identity once, in detail.
if (obj->is_klass()) {
ciKlass* klass = obj->as_klass();
if (obj->is_metadata()) {
ciMetadata* mobj = obj->as_metadata();
if (mobj->is_klass()) {
ciKlass* klass = mobj->as_klass();
begin_elem("klass id='%d'", id);
name(klass->name());
if (!klass->is_loaded()) {
@ -131,8 +133,8 @@ int CompileLog::identify(ciObject* obj) {
print(" flags='%d'", klass->modifier_flags());
}
end_elem();
} else if (obj->is_method()) {
ciMethod* method = obj->as_method();
} else if (mobj->is_method()) {
ciMethod* method = mobj->as_method();
ciSignature* sig = method->signature();
// Pre-identify items that we will need!
identify(sig->return_type());
@ -163,15 +165,18 @@ int CompileLog::identify(ciObject* obj) {
print(" iicount='%d'", method->interpreter_invocation_count());
}
end_elem();
} else if (mobj->is_type()) {
BasicType type = mobj->as_type()->basic_type();
elem("type id='%d' name='%s'", id, type2name(type));
} else {
// Should not happen.
elem("unknown id='%d'", id);
ShouldNotReachHere();
}
} else if (obj->is_symbol()) {
begin_elem("symbol id='%d'", id);
name(obj->as_symbol());
end_elem();
} else if (obj->is_null_object()) {
elem("null_object id='%d'", id);
} else if (obj->is_type()) {
BasicType type = obj->as_type()->basic_type();
elem("type id='%d' name='%s'", id, type2name(type));
} else {
// Should not happen.
elem("unknown id='%d'", id);