trace.cc revision 8640:cb8a72779f7e
1/* 2 * Copyright (c) 2001-2006 The Regents of The University of Michigan 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer; 9 * redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution; 12 * neither the name of the copyright holders nor the names of its 13 * contributors may be used to endorse or promote products derived from 14 * this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 * Authors: Nathan Binkert 29 * Steve Reinhardt 30 */ 31 32#include <cctype> 33#include <fstream> 34#include <iostream> 35#include <string> 36 37#include "base/misc.hh" 38#include "base/output.hh" 39#include "base/str.hh" 40#include "base/trace.hh" 41#include "base/varargs.hh" 42 43using namespace std; 44 45namespace Trace { 46 47const string DefaultName("global"); 48bool enabled = false; 49 50// 51// This variable holds the output stream for debug information. Other 52// than setting up/redirecting this stream, do *NOT* reference this 53// directly; use DebugOut() (see below) to access this stream for 54// output. 55// 56ostream *dprintf_stream = &cerr; 57ostream & 58output() 59{ 60 return *dprintf_stream; 61} 62 63void 64setOutput(const string &filename) 65{ 66 dprintf_stream = simout.find(filename); 67 if (!dprintf_stream) 68 dprintf_stream = simout.create(filename); 69} 70 71ObjectMatch ignore; 72 73void 74dprintf(Tick when, const std::string &name, const char *format, 75 CPRINTF_DEFINITION) 76{ 77 if (!name.empty() && ignore.match(name)) 78 return; 79 80 std::ostream &os = *dprintf_stream; 81 82 string fmt = ""; 83 CPrintfArgsList args(VARARGS_ALLARGS); 84 85 if (!name.empty()) { 86 fmt = "%s: " + fmt; 87 args.push_front(name); 88 } 89 90 if (when != (Tick)-1) { 91 fmt = "%7d: " + fmt; 92 args.push_front(when); 93 } 94 95 fmt += format; 96 97 ccprintf(os, fmt.c_str(), args); 98 os.flush(); 99} 100 101void 102dump(Tick when, const std::string &name, const void *d, int len) 103{ 104 if (!name.empty() && ignore.match(name)) 105 return; 106 107 std::ostream &os = *dprintf_stream; 108 109 string fmt = ""; 110 CPrintfArgsList args; 111 112 if (!name.empty()) { 113 fmt = "%s: " + fmt; 114 args.push_front(name); 115 } 116 117 if (when != (Tick)-1) { 118 fmt = "%7d: " + fmt; 119 args.push_front(when); 120 } 121 122 const char *data = static_cast<const char *>(d); 123 int c, i, j; 124 for (i = 0; i < len; i += 16) { 125 ccprintf(os, fmt, args); 126 ccprintf(os, "%08x ", i); 127 c = len - i; 128 if (c > 16) c = 16; 129 130 for (j = 0; j < c; j++) { 131 ccprintf(os, "%02x ", data[i + j] & 0xff); 132 if ((j & 0xf) == 7 && j > 0) 133 ccprintf(os, " "); 134 } 135 136 for (; j < 16; j++) 137 ccprintf(os, " "); 138 ccprintf(os, " "); 139 140 for (j = 0; j < c; j++) { 141 int ch = data[i + j] & 0x7f; 142 ccprintf(os, "%c", (char)(isprint(ch) ? ch : ' ')); 143 } 144 145 ccprintf(os, "\n"); 146 147 if (c < 16) 148 break; 149 } 150} 151 152} // namespace Trace 153