trace.cc revision 11153
1/* 2 * Copyright (c) 2014 ARM Limited 3 * All rights reserved 4 * 5 * Copyright (c) 2001-2006 The Regents of The University of Michigan 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions are 10 * met: redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer; 12 * redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution; 15 * neither the name of the copyright holders nor the names of its 16 * contributors may be used to endorse or promote products derived from 17 * this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 22 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 23 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 25 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 * 31 * Authors: Nathan Binkert 32 * Steve Reinhardt 33 * Andrew Bardsley 34 */ 35 36#include <cctype> 37#include <fstream> 38#include <iostream> 39#include <sstream> 40#include <string> 41 42#include "base/debug.hh" 43#include "base/misc.hh" 44#include "base/output.hh" 45#include "base/str.hh" 46#include "base/trace.hh" 47 48const std::string &name() 49{ 50 static const std::string default_name("global"); 51 52 return default_name; 53} 54 55namespace Trace 56{ 57 58// This variable holds the output logger for debug information. Other 59// than setting up/redirecting this logger, do *NOT* reference this 60// directly 61 62Logger *debug_logger = NULL; 63 64Logger * 65getDebugLogger() 66{ 67 /* Set a default logger to cerr when no other logger is set */ 68 if (!debug_logger) 69 debug_logger = new OstreamLogger(std::cerr); 70 71 return debug_logger; 72} 73 74std::ostream & 75output() 76{ 77 return getDebugLogger()->getOstream(); 78} 79 80void 81setDebugLogger(Logger *logger) 82{ 83 if (!logger) 84 warn("Trying to set debug logger to NULL\n"); 85 else 86 debug_logger = logger; 87} 88 89void 90enable() 91{ 92 Debug::SimpleFlag::enableAll(); 93} 94 95void 96disable() 97{ 98 Debug::SimpleFlag::disableAll(); 99} 100 101ObjectMatch ignore; 102 103void 104Logger::dump(Tick when, const std::string &name, const void *d, int len) 105{ 106 if (!name.empty() && ignore.match(name)) 107 return; 108 109 const char *data = static_cast<const char *>(d); 110 int c, i, j; 111 112 for (i = 0; i < len; i += 16) { 113 std::ostringstream line; 114 115 ccprintf(line, "%08x ", i); 116 c = len - i; 117 if (c > 16) c = 16; 118 119 for (j = 0; j < c; j++) { 120 ccprintf(line, "%02x ", data[i + j] & 0xff); 121 if ((j & 0xf) == 7 && j > 0) 122 ccprintf(line, " "); 123 } 124 125 for (; j < 16; j++) 126 ccprintf(line, " "); 127 ccprintf(line, " "); 128 129 for (j = 0; j < c; j++) { 130 int ch = data[i + j] & 0x7f; 131 ccprintf(line, "%c", (char)(isprint(ch) ? ch : ' ')); 132 } 133 134 ccprintf(line, "\n"); 135 logMessage(when, name, line.str()); 136 137 if (c < 16) 138 break; 139 } 140} 141 142void 143OstreamLogger::logMessage(Tick when, const std::string &name, 144 const std::string &message) 145{ 146 if (!name.empty() && ignore.match(name)) 147 return; 148 149 if (when != MaxTick) 150 ccprintf(stream, "%7d: ", when); 151 152 if (!name.empty()) 153 stream << name << ": "; 154 155 stream << message; 156 stream.flush(); 157} 158 159} // namespace Trace 160