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8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling

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Introduce compressed oops mode disjoint base and improve compressed heap handling.

Reviewed-by: kvn, coleenp
This commit is contained in:
Goetz Lindenmaier 2015-01-05 12:07:37 -05:00
parent 5b8ee4c102
commit 1c18aef92c
13 changed files with 530 additions and 296 deletions
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16
hotspot/src/share/vm/runtime/arguments.cpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1997, 2015, 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
@ -1522,15 +1522,6 @@ void Arguments::set_use_compressed_oops() {
FLAG_SET_ERGO(bool, UseCompressedOops, true);
}
#endif
#ifdef _WIN64
if (UseLargePages && UseCompressedOops) {
// Cannot allocate guard pages for implicit checks in indexed addressing
// mode, when large pages are specified on windows.
// This flag could be switched ON if narrow oop base address is set to 0,
// see code in Universe::initialize_heap().
Universe::set_narrow_oop_use_implicit_null_checks(false);
}
#endif // _WIN64
} else {
if (UseCompressedOops && !FLAG_IS_DEFAULT(UseCompressedOops)) {
warning("Max heap size too large for Compressed Oops");
@ -2416,6 +2407,7 @@ bool Arguments::check_vm_args_consistency() {
#ifdef COMPILER1
status = status && verify_min_value(ValueMapInitialSize, 1, "ValueMapInitialSize");
#endif
status = status && verify_min_value(HeapSearchSteps, 1, "HeapSearchSteps");
if (PrintNMTStatistics) {
#if INCLUDE_NMT
@ -4102,6 +4094,10 @@ void Arguments::PropertyList_add(SystemProperty** plist, const char* k, char* v)
PropertyList_add(plist, new_p);
}
void Arguments::PropertyList_add(SystemProperty *element) {
PropertyList_add(&_system_properties, element);
}
// This add maintains unique property key in the list.
void Arguments::PropertyList_unique_add(SystemProperty** plist, const char* k, char* v, jboolean append) {
if (plist == NULL)