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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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33
hotspot/src/share/vm/classfile/classFileParser.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
@ -34,6 +34,7 @@
#include "classfile/verifier.hpp"
#include "classfile/vmSymbols.hpp"
#include "gc/shared/gcLocker.hpp"
#include "logging/log.hpp"
#include "memory/allocation.hpp"
#include "memory/metadataFactory.hpp"
#include "memory/oopFactory.hpp"
@ -5347,30 +5348,12 @@ void ClassFileParser::fill_instance_klass(InstanceKlass* ik, TRAPS) {
ClassLoadingService::notify_class_loaded(ik, false /* not shared class */);
if (!is_internal()) {
if (TraceClassLoading) {
ResourceMark rm;
// print in a single call to reduce interleaving of output
if (_stream->source() != NULL) {
tty->print("[Loaded %s from %s]\n",
ik->external_name(),
_stream->source());
} else if (_loader_data->class_loader() == NULL) {
const Klass* const caller =
THREAD->is_Java_thread()
? ((JavaThread*)THREAD)->security_get_caller_class(1)
: NULL;
// caller can be NULL, for example, during a JVMTI VM_Init hook
if (caller != NULL) {
tty->print("[Loaded %s by instance of %s]\n",
ik->external_name(),
caller->external_name());
} else {
tty->print("[Loaded %s]\n", ik->external_name());
}
} else {
tty->print("[Loaded %s from %s]\n", ik->external_name(),
_loader_data->class_loader()->klass()->external_name());
}
if (log_is_enabled(Info, classload)) {
ik->print_loading_log(LogLevel::Info, _loader_data, _stream);
}
// No 'else' here as logging levels are not mutually exclusive
if (log_is_enabled(Debug, classload)) {
ik->print_loading_log(LogLevel::Debug, _loader_data, _stream);
}
if (log_is_enabled(Info, classresolve)) {