trace.cc revision 8232:b28d06a175be
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} 68 69ObjectMatch ignore; 70 71void 72dprintf(Tick when, const std::string &name, const char *format, 73 CPRINTF_DEFINITION) 74{ 75 if (!name.empty() && ignore.match(name)) 76 return; 77 78 std::ostream &os = *dprintf_stream; 79 80 string fmt = ""; 81 CPrintfArgsList args(VARARGS_ALLARGS); 82 83 if (!name.empty()) { 84 fmt = "%s: " + fmt; 85 args.push_front(name); 86 } 87 88 if (when != (Tick)-1) { 89 fmt = "%7d: " + fmt; 90 args.push_front(when); 91 } 92 93 fmt += format; 94 95 ccprintf(os, fmt.c_str(), args); 96 os.flush(); 97} 98 99void 100dump(Tick when, const std::string &name, const void *d, int len) 101{ 102 if (!name.empty() && ignore.match(name)) 103 return; 104 105 std::ostream &os = *dprintf_stream; 106 107 string fmt = ""; 108 CPrintfArgsList args; 109 110 if (!name.empty()) { 111 fmt = "%s: " + fmt; 112 args.push_front(name); 113 } 114 115 if (when != (Tick)-1) { 116 fmt = "%7d: " + fmt; 117 args.push_front(when); 118 } 119 120 const char *data = static_cast<const char *>(d); 121 int c, i, j; 122 for (i = 0; i < len; i += 16) { 123 ccprintf(os, fmt, args); 124 ccprintf(os, "%08x ", i); 125 c = len - i; 126 if (c > 16) c = 16; 127 128 for (j = 0; j < c; j++) { 129 ccprintf(os, "%02x ", data[i + j] & 0xff); 130 if ((j & 0xf) == 7 && j > 0) 131 ccprintf(os, " "); 132 } 133 134 for (; j < 16; j++) 135 ccprintf(os, " "); 136 ccprintf(os, " "); 137 138 for (j = 0; j < c; j++) { 139 int ch = data[i + j] & 0x7f; 140 ccprintf(os, "%c", (char)(isprint(ch) ? ch : ' ')); 141 } 142 143 ccprintf(os, "\n"); 144 145 if (c < 16) 146 break; 147 } 148} 149 150} // namespace Trace 151