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8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging

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TraceClassLoading,  TraceClassUnloading, and TraceClassLoaderData have been reimplemented using Unified logging.

Co-authored-by: Ioi Lam <ioi.lam@oracle.com>
Reviewed-by: iklam, coleenp, dholmes, jiangli, hseigel, rprotacio
This commit is contained in:
Max Ockner 2016-02-03 11:40:30 -05:00
parent 828a52c262
commit 9cab990401
22 changed files with 358 additions and 122 deletions
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11
hotspot/src/share/vm/oops/klass.cpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 1997, 2016, 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
@ -28,6 +28,7 @@
#include "classfile/systemDictionary.hpp"
#include "classfile/vmSymbols.hpp"
#include "gc/shared/collectedHeap.inline.hpp"
#include "logging/log.hpp"
#include "memory/heapInspection.hpp"
#include "memory/metadataFactory.hpp"
#include "memory/oopFactory.hpp"
@ -386,9 +387,9 @@ void Klass::clean_weak_klass_links(BoolObjectClosure* is_alive, bool clean_alive
Klass* sub = current->subklass();
while (sub != NULL && !sub->is_loader_alive(is_alive)) {
#ifndef PRODUCT
if (TraceClassUnloading && WizardMode) {
if (log_is_enabled(Trace, classunload)) {
ResourceMark rm;
tty->print_cr("[Unlinking class (subclass) %s]", sub->external_name());
log_trace(classunload)("unlinking class (subclass): %s", sub->external_name());
}
#endif
sub = sub->next_sibling();
@ -401,9 +402,9 @@ void Klass::clean_weak_klass_links(BoolObjectClosure* is_alive, bool clean_alive
// Find and set the first alive sibling
Klass* sibling = current->next_sibling();
while (sibling != NULL && !sibling->is_loader_alive(is_alive)) {
if (TraceClassUnloading && WizardMode) {
if (log_is_enabled(Trace, classunload)) {
ResourceMark rm;
tty->print_cr("[Unlinking class (sibling) %s]", sibling->external_name());
log_trace(classunload)("[Unlinking class (sibling) %s]", sibling->external_name());
}
sibling = sibling->next_sibling();
}