trace.cc revision 10292
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 42using namespace std; 43 44namespace Trace { 45 46const string DefaultName("global"); 47bool enabled = false; 48 49// 50// This variable holds the output stream for debug information. Other 51// than setting up/redirecting this stream, do *NOT* reference this 52// directly; use DebugOut() (see below) to access this stream for 53// output. 54// 55ostream *dprintf_stream = &cerr; 56ostream & 57output() 58{ 59 return *dprintf_stream; 60} 61 62void 63setOutput(const string &filename) 64{ 65 dprintf_stream = simout.find(filename); 66 if (!dprintf_stream) 67 dprintf_stream = simout.create(filename); 68} 69 70ObjectMatch ignore; 71 72 73bool 74__dprintf_prologue(Tick when, const std::string &name) 75{ 76 if (!name.empty() && ignore.match(name)) 77 return false; 78 79 std::ostream &os = *dprintf_stream; 80 81 if (when != MaxTick) 82 ccprintf(os, "%7d: ", when); 83 84 if (!name.empty()) 85 os << name << ": "; 86 87 return true; 88} 89 90void 91dump(Tick when, const std::string &name, const void *d, int len) 92{ 93 const char *data = static_cast<const char *>(d); 94 std::ostream &os = *dprintf_stream; 95 int c, i, j; 96 97 for (i = 0; i < len; i += 16) { 98 if (!__dprintf_prologue(when, name)) 99 return; 100 101 ccprintf(os, "%08x ", i); 102 c = len - i; 103 if (c > 16) c = 16; 104 105 for (j = 0; j < c; j++) { 106 ccprintf(os, "%02x ", data[i + j] & 0xff); 107 if ((j & 0xf) == 7 && j > 0) 108 ccprintf(os, " "); 109 } 110 111 for (; j < 16; j++) 112 ccprintf(os, " "); 113 ccprintf(os, " "); 114 115 for (j = 0; j < c; j++) { 116 int ch = data[i + j] & 0x7f; 117 ccprintf(os, "%c", (char)(isprint(ch) ? ch : ' ')); 118 } 119 120 ccprintf(os, "\n"); 121 122 if (c < 16) 123 break; 124 } 125} 126 127} // namespace Trace 128