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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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12
hotspot/src/share/vm/code/nmethod.cpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 1997, 2015, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1997, 2016, 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
@ -48,6 +48,7 @@
#include "utilities/dtrace.hpp"
#include "utilities/events.hpp"
#include "utilities/xmlstream.hpp"
#include "logging/log.hpp"
#ifdef TARGET_ARCH_x86
# include "nativeInst_x86.hpp"
#endif
@ -1310,13 +1311,14 @@ void nmethod::make_unloaded(BoolObjectClosure* is_alive, oop cause) {
flush_dependencies(is_alive);
// Break cycle between nmethod & method
if (TraceClassUnloading && WizardMode) {
tty->print_cr("[Class unloading: Making nmethod " INTPTR_FORMAT
" unloadable], Method*(" INTPTR_FORMAT
if (log_is_enabled(Trace, classunload)) {
outputStream* log = LogHandle(classunload)::trace_stream();
log->print_cr("making nmethod " INTPTR_FORMAT
" unloadable, Method*(" INTPTR_FORMAT
"), cause(" INTPTR_FORMAT ")",
p2i(this), p2i(_method), p2i(cause));
if (!Universe::heap()->is_gc_active())
cause->klass()->print();
cause->klass()->print_on(log);
}
// Unlink the osr method, so we do not look this up again
if (is_osr_method()) {