6723b06275
Loggers was previously declared as global variables, hence are unsafe to be used inside other global objects' destructor (e.g. scMainFiber). This CL makes them heap allocated objects hold by function static variables. As a result: 1. The loggers never get destructed at the end of program, which makes them safe to be used in global objects' destructor. 2. The loggers are constructed ondemand instead of relying on linker's unknown way of ordering, which makes them safe to be used in global objects' constructor. Change-Id: Ieb499d2fa4c5c1c015324cb72b055115b0933ab8 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/46079 Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br> Reviewed-by: Jason Lowe-Power <power.jg@gmail.com> Maintainer: Jason Lowe-Power <power.jg@gmail.com> Tested-by: kokoro <noreply+kokoro@google.com>
110 lines
3.6 KiB
C++
110 lines
3.6 KiB
C++
/*
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* Copyright (c) 2014, 2017 ARM Limited
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* All rights reserved
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*
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* The license below extends only to copyright in the software and shall
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* not be construed as granting a license to any other intellectual
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* property including but not limited to intellectual property relating
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* to a hardware implementation of the functionality of the software
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* licensed hereunder. You may use the software subject to the license
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* terms below provided that you ensure that this notice is replicated
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* unmodified and in its entirety in all distributions of the software,
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* modified or unmodified, in source code or in binary form.
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*
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* Copyright (c) 2002-2005 The Regents of The University of Michigan
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "base/logging.hh"
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#include <sstream>
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#include "base/hostinfo.hh"
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namespace {
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class ExitLogger : public Logger
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{
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public:
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using Logger::Logger;
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protected:
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void
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log(const Loc &loc, std::string s) override
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{
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std::stringstream ss;
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ccprintf(ss, "Memory Usage: %ld KBytes\n", memUsage());
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Logger::log(loc, s + ss.str());
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}
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};
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class FatalLogger : public ExitLogger
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{
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public:
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using ExitLogger::ExitLogger;
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protected:
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void exit() override { ::exit(1); }
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};
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} // anonymous namespace
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// We intentionally put all the loggers on the heap to prevent them from being
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// destructed at the end of the program. This make them safe to be used inside
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// destructor of other global objects. Also, we make them function static
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// veriables to ensure they are initialized ondemand, so it is also safe to use
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// them inside constructor of other global objects.
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Logger&
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Logger::getPanic() {
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static ExitLogger* panic_logger = new ExitLogger("panic: ");
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return *panic_logger;
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}
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Logger&
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Logger::getFatal() {
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static FatalLogger* fatal_logger = new FatalLogger("fatal: ");
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return *fatal_logger;
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}
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Logger&
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Logger::getWarn() {
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static Logger* warn_logger = new Logger("warn: ");
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return *warn_logger;
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}
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Logger&
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Logger::getInfo() {
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static Logger* info_logger = new Logger("info: ");
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return *info_logger;
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}
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Logger&
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Logger::getHack() {
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static Logger* hack_logger = new Logger("hack: ");
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return *hack_logger;
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}
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