1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
|
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"
"http://www.w3.org/TR/REC-html40/loose.dtd">
<html>
<head>
<meta content="text/html; charset=iso-8859-1" http-equiv="Content-Type">
<title>Running gprof and gcov</title>
</head>
<body alink="#FF0000" vlink="#55188A" link="#0000EF" bgcolor="#FFFFFF" text="#000099">
<table border="0">
<tr align="left">
<td valign="top">
<table border="0">
<tr align="left"><td valign="top" >
<img width="120" height="171" src="uml-small.png">
</td></tr>
<tr align="left"><td valign="top" bgcolor="#e0e0e0">
<font size="-1"><a href="index.html">Site Home Page</a></font>
<br>
<font size="-1"><a href="uses.html">What it's good for</a></font>
<br>
<font size="-1"><a href="case-studies.html">Case Studies</a></font>
<br>
<font size="-1"><a href="kernel.html">Kernel Capabilities</a></font>
<br>
<font size="-1"><a href="dl-sf.html">Downloading it</a></font>
<br>
<font size="-1"><a href="run.html">Running it</a></font>
<br>
<font size="-1"><a href="compile.html">Compiling</a></font>
<br>
<font size="-1"><a href="install.html">Installation</a></font>
<br>
<font size="-1"><a href="fs_making.html">Building filesystems</a></font>
<br>
<font size="-1"><a href="faq.html">Troubles</a></font>
<br>
<font size="-1"><a href="contrib.html">User Contributions</a></font>
<br>
<font size="-1"><a href="links.html">Related Links</a></font>
<br>
<font size="-1"><a href="todo.html">The ToDo list</a></font>
<br>
<font size="-1"><a href="projects.html">Projects</a></font>
<br>
<font size="-1"><a href="diary.html">Diary</a></font>
<br>
<font size="-1"><a href="thanks.html">Thanks</a></font>
<br>
<font size="-1"><a href="contacts.html">Contacts</a></font>
</td></tr>
<tr align="left"><td valign="top" bgcolor="#e0e0e0">Tutorials<br>
<font size="-1"><a href="UserModeLinux-HOWTO.html">The HOWTO (html)</a></font>
<br>
<font size="-1"><a href="UserModeLinux-HOWTO.txt">The HOWTO (text)</a></font>
<br>
<font size="-1"><a href="hostfs.html">Host file access</a></font>
<br>
<font size="-1"><a href="input.html">Device inputs</a></font>
<br>
<font size="-1"><a href="shared_fs.html">Sharing filesystems</a></font>
<br>
<font size="-1"><a href="fs.html">Creating filesystems</a></font>
<br>
<font size="-1"><a href="networking.html">Virtual Networking</a></font>
<br>
<font size="-1"><a href="mconsole.html">Management Console</a></font>
<br>
<font size="-1"><a href="debugging.html">Kernel Debugging</a></font>
<br>
<font size="-1"><a href="gprof.html">gprof and gcov</a></font>
<br>
<font size="-1"><a href="xtut.html">Running X</a></font>
<br>
<font size="-1"><a href="trouble.html">Diagnosing problems</a></font>
<br>
<font size="-1"><a href="config.html">Configuration</a></font>
<br>
<font size="-1"><a href="slack_readme.html">Installing Slackware</a></font>
<br>
<font size="-1"><a href="arch-port.html">Porting UML</a></font>
<br>
<font size="-1"><a href="iomem.html">IO memory emulation</a></font>
<br>
<font size="-1"><a href="2G-2G.html">UML on 2G/2G hosts</a></font>
<br>
<font size="-1"><a href="lksct/index.html">Adding a UML system call</a></font>
</td></tr>
<tr align="left"><td valign="top" bgcolor="#e0e0e0">How you can help<br>
<font size="-1"><a href="help-gen.html">Overview</a></font>
<br>
<font size="-1"><a href="help-doc.html">Documentation</a></font>
<br>
<font size="-1"><a href="help-userspace.html">Utilities</a></font>
<br>
<font size="-1"><a href="help-kernel-v1.html">Kernel bugs</a></font>
<br>
<font size="-1"><a href="projects.html">Kernel projects</a></font>
</td></tr>
<tr align="left"><td valign="top" bgcolor="#e0e0e0">Screenshots<br>
<font size="-1"><a href="net.html">A virtual network</a></font>
<br>
<font size="-1"><a href="x.html">An X session</a></font>
</td></tr>
<tr align="left"><td valign="top" bgcolor="#e0e0e0">Transcripts<br>
<font size="-1"><a href="login.html">A login session</a></font>
<br>
<font size="-1"><a href="debug-session.html">A debugging session</a></font>
<br>
<font size="-1"><a href="slackinst.html">Slackware installation</a></font>
</td></tr>
<tr align="left"><td valign="top" bgcolor="#e0e0e0">Reference<br>
<font size="-1"><a href="switches.html">Kernel switches</a></font>
<br>
<font size="-1"><a href="slack_readme.html">Slackware README</a></font>
</td></tr>
<tr align="left"><td valign="top" bgcolor="#e0e0e0">Papers<br>
<font size="-1"><a href="als2000/index.html">ALS 2000 paper (html)</a></font>
<br>
<font size="-1"><a href="als2000.tex">ALS 2000 paper (TeX)</a></font>
<br>
<font size="-1"><a href="slides/als2000/slides.html">ALS 2000 slides</a></font>
<br>
<font size="-1"><a href="slides/lca2001/lca.html">LCA 2001 slides</a></font>
<br>
<font size="-1"><a href="slides/ols2001/index.html">OLS 2001 paper (html)</a></font>
<br>
<font size="-1"><a href="ols2001.tex">OLS 2001 paper (TeX)</a></font>
<br>
<font size="-1"><a href="als2001/index.html">ALS 2001 paper (html)</a></font>
<br>
<font size="-1"><a href="als2001.tex">ALS 2001 paper (TeX)</a></font>
<br>
<font size="-1"><a href="slides/ists2002/umlsec.htm">UML security (html)</a></font>
<br>
<font size="-1"><a href="slides/lca2002/lca2002.htm">LCA 2002 (html)</a></font>
<br>
<font size="-1"><a href="slides/wvu2002/wvu2002.htm">WVU 2002 (html)</a></font>
</td></tr>
<tr align="left"><td valign="top" bgcolor="#e0e0e0">Fun and Games<br>
<font size="-1"><a href="http://user-mode-linux.sourceforge.net/cgi-bin/hangman">Kernel Hangman</a></font>
<br>
<font size="-1"><a href="sdotm.html">Disaster of the Month</a></font>
</td></tr>
</table>
</td>
<td valign="top" align="left">
<center>
<h3>Running gprof and gcov</h3>
</center>
gprof and gcov support in UML is present in <a href="http://sourceforge.net/cvs/?group_id=429">CVS</a> as of
17 Apr 2001. I sent it to Alan for inclusion in
the ac tree, and it will be in my 2.4.4 release.
<a name="gprof"/><table width="100%" bgcolor="#e0e0e0">
<tr>
<td>
<b>
<font color="black">gprof</font>
</b>
</td>
</tr>
</table>
<blockquote head="gprof">
To use gprof with UML, you do the following
<ul>
<li>
Configure with gprof support - this is "enable gprof support" under "Kernel
Hacking". You'll need to turn on "kernel debugging symbols" first.
</li>
<li>
Build UML.
</li>
<li>
Boot it up and run your tests in it.
</li>
<li>
Halt it, and the standard gmon.out file will be written out. Run gprof as
you would with any other process
<blockquote>
<tt>
<font color="#000000">gprof linux</font>
</tt>
</blockquote>
and you will get the standard reams of gprof output.
</li>
</ul>
<a href="text/gprof1.out">Here</a> is gprof output from
several hours of a thrashing UML. There is some commentary on it in
<a href="diary.html#10-03-2001">this entry</a> of
the UML <a href="diary.html">diary</a>.
</blockquote>
<a name="gcov"/><table width="100%" bgcolor="#e0e0e0">
<tr>
<td>
<b>
<font color="black">gcov</font>
</b>
</td>
</tr>
</table>
<blockquote head="gcov">
Using gcov with UML is similar:
<ul>
<li>
Configure with gprof support - this is "enable gcov support" under "Kernel
Hacking". You'll need to turn on "kernel debugging symbols" first.
</li>
<li>
Build UML.
</li>
<li>
Boot it up and run your tests in it.
</li>
<li>
Halt UML, and every file in the kernel that has coverage data will get a
'file.da' file. In order to see what coverage of a particular file you
achieved with your tests, run
<blockquote>
<tt>
<font color="#000000">gcov file.c</font>
</tt>
</blockquote>
This will produce 'file.c.gcov', which is 'file.c' annotated with line-by-line
coverage information.
</li>
</ul>
</blockquote>
</td>
</tr>
</table>
<center>
<font size="-1">
Hosted at </font>
<a href="http://sourceforge.net">
<IMG alt="SourceForge Logo" border="0" height="31" width="88" src="http://sourceforge.net/sflogo.php?group_id=429">
</a>
</center>
</body>
</html>
|
