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VerboseLog.hpp
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VerboseLog.hpp
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/*******************************************************************************
* Copyright (c) 2000, 2019 IBM Corp. and others
*
* This program and the accompanying materials are made available under
* the terms of the Eclipse Public License 2.0 which accompanies this
* distribution and is available at http://eclipse.org/legal/epl-2.0
* or the Apache License, Version 2.0 which accompanies this distribution
* and is available at https://www.apache.org/licenses/LICENSE-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the
* Eclipse Public License, v. 2.0 are satisfied: GNU General Public License,
* version 2 with the GNU Classpath Exception [1] and GNU General Public
* License, version 2 with the OpenJDK Assembly Exception [2].
*
* [1] https://www.gnu.org/software/classpath/license.html
* [2] http://openjdk.java.net/legal/assembly-exception.html
*
* SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 OR GPL-2.0 WITH Classpath-exception-2.0 OR LicenseRef-GPL-2.0 WITH Assembly-exception
*******************************************************************************/
#ifndef VERBOSELOG_HPP
#define VERBOSELOG_HPP
#pragma once
#include <stdarg.h>
/*
* Each call to the vlog must now have a 'tag'
* When adding a tag, update the table in VerboseLog.cpp
* Tags should be of the format '\n#TAGNAME: '
*/
enum TR_VlogTag
{
TR_Vlog_null=0,
TR_Vlog_INFO,
TR_Vlog_SAMPLING,
TR_Vlog_IPROFILER,
TR_Vlog_CODECACHE,
TR_Vlog_JITSTATE,
TR_Vlog_PERF,
TR_Vlog_MEMORY,
TR_Vlog_FAILURE,
TR_Vlog_JITDUMP,
TR_Vlog_SCHINTS,
TR_Vlog_GCCYCLE,
TR_Vlog_J2I,
TR_Vlog_CR, //(compilation request)
TR_Vlog_RA, //(runtime assumption)
TR_Vlog_HK, //(hook)
TR_Vlog_HD, //(hook details)
TR_Vlog_MH, //(method handle)
TR_Vlog_MHD, //(method handle details)
TR_Vlog_DLT,
TR_Vlog_COMP,
TR_Vlog_COMPSTART,
TR_Vlog_COMPFAIL,
TR_Vlog_PRECOMP,
TR_Vlog_MMAP,
TR_Vlog_OSR, //(on-stack replacement)
TR_Vlog_OSRD, //(on-stack replacement details)
TR_Vlog_HWPROFILER,
TR_Vlog_INL, //(inlining)
TR_Vlog_GC,
TR_Vlog_GPU,
TR_Vlog_PATCH,
TR_Vlog_DISPATCH,
TR_Vlog_RECLAMATION,
TR_Vlog_PROFILING,
TR_Vlog_JITServer,
TR_Vlog_AOTCOMPRESSION,
TR_Vlog_FSD,
TR_Vlog_numTags
};
/*
* TR_VerboseLog stores the config of the jit early on, and can use it for printing to the verbose log
* Each verbose write should have a Tag (see TR_VlogTag for list of options). The tag is of the form: '\n#TAG: '
*/
class TR_VerboseLog
{
public:
// writeLine and write provide multi line write capabilities, and are to be
// used with CriticalSection or vlogAcquire() and vlogRelease() to ensure
// nicely formatted verbose logs
static void write(const char *format, ...);
static void write(TR_VlogTag tag, const char *format, ...);
static void writeLine(TR_VlogTag tag, const char *format, ...);
static void writeLine(const char *format, ...);
//writeLineLocked is a single line print function, it provides the locks for you
static void writeLineLocked(TR_VlogTag tag, const char *format, ...);
static void vlogAcquire(); //defined in each front end
static void vlogRelease(); //defined in each front end
class CriticalSection
{
public:
CriticalSection(bool lock = true) : _locked(false)
{
if (lock)
{
vlogAcquire();
_locked = true;
}
}
~CriticalSection()
{
if (_locked)
vlogRelease();
}
private:
bool _locked;
};
//only called once early on, after we can print to the vlog
static void initialize(void *config);
private:
static void vwrite(const char *format, va_list args); //defined in each front end
static void writeTimeStamp();
static const char *_vlogTable[];
static void *_config; //we will use void * as the different implementations have different config types
};
#endif // VERBOSELOG_HPP