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 <ctype.h> 33#include <fstream> 34#include <iostream> 35#include <list> 36#include <string> 37#include <vector> 38 39#include "base/misc.hh"
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40#include "base/trace.hh"
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40#include "base/output.hh" |
41#include "base/str.hh"
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42#include "base/trace.hh" |
43#include "base/varargs.hh" 44 45using namespace std; 46 47namespace Trace { 48const string DefaultName("global"); 49FlagVec flags(NumFlags, false); 50bool enabled = true; 51 52// 53// This variable holds the output stream for debug information. Other 54// than setting up/redirecting this stream, do *NOT* reference this 55// directly; use DebugOut() (see below) to access this stream for 56// output. 57// 58ostream *dprintf_stream = &cerr;
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58
59ObjectMatch ignore;
60
61Log theLog;
62
63Log::Log()
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59ostream & 60output() |
61{
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65 size = 0;
66 buffer = NULL;
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62 return *dprintf_stream; |
63} 64
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69
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65void
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71Log::init(int _size)
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66setOutput(const string &filename) |
67{
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73 if (buffer != NULL) {
74 fatal("Trace::Log::init called twice!");
75 }
76
77 size = _size;
78
79 buffer = new Record *[size];
80
81 for (int i = 0; i < size; ++i) {
82 buffer[i] = NULL;
83 }
84
85 nextRecPtr = &buffer[0];
86 wrapRecPtr = &buffer[size];
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68 dprintf_stream = simout.find(filename); |
69} 70
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71ObjectMatch ignore; |
72
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90Log::~Log()
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73void 74dprintf(Tick when, const std::string &name, const char *format, 75 CPRINTF_DEFINITION) |
76{
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92 for (int i = 0; i < size; ++i) {
93 delete buffer[i];
94 }
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77 if (!name.empty() && ignore.match(name)) 78 return; |
79
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96 delete [] buffer;
97}
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80 std::ostream &os = *dprintf_stream; |
81
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82 string fmt = ""; 83 CPrintfArgsList args(VARARGS_ALLARGS); |
84
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100void
101Log::append(Record *rec)
102{
103 // dump record to output stream if there's one open
104 if (dprintf_stream != NULL) {
105 rec->dump(*dprintf_stream);
106 } else {
107 rec->dump(cout);
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85 if (!name.empty()) { 86 fmt = "%s: " + fmt; 87 args.push_front(name); |
88 } 89
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110 // no buffering: justget rid of it now
111 if (buffer == NULL) {
112 delete rec;
113 return;
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90 if (when != (Tick)-1) { 91 fmt = "%7d: " + fmt; 92 args.push_front(when); |
93 } 94
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116 Record *oldRec = *nextRecPtr;
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95 fmt += format; |
96
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118 if (oldRec != NULL) {
119 // log has wrapped: overwrite
120 delete oldRec;
121 }
122
123 *nextRecPtr = rec;
124
125 if (++nextRecPtr == wrapRecPtr) {
126 nextRecPtr = &buffer[0];
127 }
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97 ccprintf(os, fmt.c_str(), args); 98 os.flush(); |
99} 100
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130
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101void
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132Log::dump(ostream &os)
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102dump(Tick when, const std::string &name, const void *d, int len) |
103{
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134 if (buffer == NULL) {
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104 if (!name.empty() && ignore.match(name)) |
105 return;
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136 }
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106
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138 Record **bufPtr = nextRecPtr;
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107 std::ostream &os = *dprintf_stream; |
108
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140 if (*bufPtr == NULL) {
141 // next record slot is empty: log must not be full yet.
142 // start dumping from beginning of buffer
143 bufPtr = buffer;
144 }
145
146 do {
147 Record *rec = *bufPtr;
148
149 rec->dump(os);
150
151 if (++bufPtr == wrapRecPtr) {
152 bufPtr = &buffer[0];
153 }
154 } while (bufPtr != nextRecPtr);
155}
156
157PrintfRecord::~PrintfRecord()
158{}
159
160void
161PrintfRecord::dump(ostream &os)
162{
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109 string fmt = "";
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110 CPrintfArgsList args; |
111 112 if (!name.empty()) { 113 fmt = "%s: " + fmt; 114 args.push_front(name); 115 } 116
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170 if (cycle != (Tick)-1) {
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117 if (when != (Tick)-1) { |
118 fmt = "%7d: " + fmt;
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172 args.push_front(cycle);
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119 args.push_front(when); |
120 } 121
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175 fmt += format;
176
177 ccprintf(os, fmt.c_str(), args);
178 os.flush();
179}
180
181DataRecord::DataRecord(Tick _cycle, const string &_name,
182 const void *_data, int _len)
183 : Record(_cycle), name(_name), len(_len)
184{
185 data = new uint8_t[len];
186 memcpy(data, _data, len);
187}
188
189DataRecord::~DataRecord()
190{
191 delete [] data;
192}
193
194void
195DataRecord::dump(ostream &os)
196{
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122 const char *data = static_cast<const char *>(d); |
123 int c, i, j;
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198
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124 for (i = 0; i < len; i += 16) {
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200 ccprintf(os, "%d: %s: %08x ", cycle, name, i);
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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;
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216 ccprintf(os,
217 "%c", (char)(isprint(ch) ? ch : ' '));
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142 ccprintf(os, "%c", (char)(isprint(ch) ? ch : ' ')); |
143 } 144 145 ccprintf(os, "\n"); 146 147 if (c < 16) 148 break; 149 } 150}
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226} // namespace Trace
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151 152bool 153changeFlag(const char *s, bool value) 154{ 155 using namespace Trace; 156 std::string str(s); 157 158 for (int i = 0; i < numFlagStrings; ++i) { 159 if (str != flagStrings[i]) 160 continue; 161 162 if (i < NumFlags) { 163 flags[i] = value; 164 } else { 165 i -= NumFlags; 166 167 const Flags *flagVec = compoundFlags[i]; 168 for (int j = 0; flagVec[j] != -1; ++j) { 169 if (flagVec[j] < NumFlags) 170 flags[flagVec[j]] = value; 171 } 172 } 173 174 return true; 175 } 176 177 // the flag was not found. 178 return false; 179} 180 181void 182dumpStatus() 183{ 184 using namespace Trace; 185 for (int i = 0; i < numFlagStrings; ++i) { 186 if (flags[i]) 187 cprintf("%s\n", flagStrings[i]); 188 } 189} 190 191/* namespace Trace */ } 192 193 194// add a set of functions that can easily be invoked from gdb 195extern "C" { 196 void 197 setTraceFlag(const char *string) 198 { 199 Trace::changeFlag(string, true); 200 } 201 202 void 203 clearTraceFlag(const char *string) 204 { 205 Trace::changeFlag(string, false); 206 } 207 208 void 209 dumpTraceStatus() 210 { 211 Trace::dumpStatus(); 212 } 213/* extern "C" */ } |
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