logging.cc revision 12334
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 <array> 47 48#include "base/hostinfo.hh" 49#include "base/output.hh" 50#include "base/trace.hh" 51#include "base/types.hh" 52#include "sim/core.hh" 53 54void 55Logger::setLevel(LogLevel ll) 56{ 57 for (int i = 0; i < NUM_LOG_LEVELS; ++i) 58 get(LogLevel(i)).enabled = (i <= ll); 59} 60 61static void 62newline_if_needed(std::ostream &stream, const char *format) 63{ 64 const size_t format_len(strlen(format)); 65 66 switch (format_len ? format[format_len - 1] : '\0') { 67 case '\n': 68 case '\r': 69 break; 70 default: 71 stream << std::endl; 72 } 73} 74 75Logger::Logger(std::ostream &_stream, const char *_prefix) 76 : enabled(true), verbose(false), stream(_stream), prefix(_prefix) 77{ 78} 79 80void 81Logger::printEpilogue(const char *func, const char *file, int line, 82 const char *format) 83{ 84 newline_if_needed(stream, format); 85 86 if (verbose) { 87 ccprintf(stream, " @ tick %d\n[%s:%s, line %d]\n", 88 curTick(), func, file, line); 89 } 90} 91 92class ExitLogger : public Logger 93{ 94 public: 95 using Logger::Logger; 96 97 void printEpilogue(const char *func, const char *file, int line, 98 const char *format) override; 99}; 100 101void 102ExitLogger::printEpilogue(const char *func, const char *file, int line, 103 const char *format) 104{ 105 Logger::printEpilogue(func, file, line, format); 106 107 ccprintf(stream, "Memory Usage: %ld KBytes\n", memUsage()); 108} 109 110Logger & 111Logger::get(LogLevel ll) 112{ 113 static std::array<Logger *, NUM_LOG_LEVELS> loggers{{ 114 new ExitLogger(std::cerr, "panic"), 115 new ExitLogger(std::cerr, "fatal"), 116 new Logger(std::cerr, "warn"), 117 new Logger(std::cerr, "info"), 118 new Logger(std::cerr, "hack"), 119 }}; 120 121 return *loggers[ll]; 122} 123