src/base/logging.cc

   1 /*
   2  * Copyright (c) 2014, 2017 ARM Limited
   3  * All rights reserved
   4  *
   5  * The license below extends only to copyright in the software and shall
   6  * not be construed as granting a license to any other intellectual
   7  * property including but not limited to intellectual property relating
   8  * to a hardware implementation of the functionality of the software
   9  * licensed hereunder.  You may use the software subject to the license
  10  * terms below provided that you ensure that this notice is replicated
  11  * unmodified and in its entirety in all distributions of the software,
  12  * modified or unmodified, in source code or in binary form.
  13  *
  14  * Copyright (c) 2002-2005 The Regents of The University of Michigan
  15  * All rights reserved.
  16  *
  17  * Redistribution and use in source and binary forms, with or without
  18  * modification, are permitted provided that the following conditions are
  19  * met: redistributions of source code must retain the above copyright
  20  * notice, this list of conditions and the following disclaimer;
  21  * redistributions in binary form must reproduce the above copyright
  22  * notice, this list of conditions and the following disclaimer in the
  23  * documentation and/or other materials provided with the distribution;
  24  * neither the name of the copyright holders nor the names of its
  25  * contributors may be used to endorse or promote products derived from
  26  * this software without specific prior written permission.
  27  *
  28  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  29  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  30  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  31  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  32  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  33  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  34  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  35  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  36  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  37  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  38  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  39  *
  40  * Authors: Nathan Binkert
  41  *          Andreas Sandberg
  42  */
  43
  44 #include "base/logging.hh"
  45
  46 #include <sstream>
  47
  48 #include "base/hostinfo.hh"
  49
  50 namespace {
  51
  52 class NormalLogger : public Logger
  53 {
  54   public:
  55     using Logger::Logger;
  56
  57   protected:
  58     void log(const Loc &loc, std::string s) override { std::cerr << s; }
  59 };
  60
  61 class ExitLogger : public NormalLogger
  62 {
  63   public:
  64     using NormalLogger::NormalLogger;
  65
  66   protected:
  67     void
  68     log(const Loc &loc, std::string s) override
  69     {
  70         std::stringstream ss;
  71         ccprintf(ss, "Memory Usage: %ld KBytes\n", memUsage());
  72         NormalLogger::log(loc, s + ss.str());
  73     }
  74 };
  75
  76 class FatalLogger : public ExitLogger
  77 {
  78   public:
  79     using ExitLogger::ExitLogger;
  80
  81   protected:
  82     void exit() override { ::exit(1); }
  83 };
  84
  85 ExitLogger panicLogger("panic: ");
  86 FatalLogger fatalLogger("fatal: ");
  87 NormalLogger warnLogger("warn: ");
  88 NormalLogger infoLogger("info: ");
  89 NormalLogger hackLogger("hack: ");
  90
  91 } // anonymous namespace
  92
  93 Logger &Logger::getPanic() { return panicLogger; }
  94 Logger &Logger::getFatal() { return fatalLogger; }
  95 Logger &Logger::getWarn() { return warnLogger; }
  96 Logger &Logger::getInfo() { return infoLogger; }
  97 Logger &Logger::getHack() { return hackLogger; }