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131 .rm #[ #] #H #V #F C
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132 .\" ========================================================================
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133 .\"
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134 .IX Title "GC-ANALYZE 1"
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135 .TH GC-ANALYZE 1 "2009-04-21" "gcc-4.4.0" "GNU"
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136 .\" For nroff, turn off justification. Always turn off hyphenation; it makes
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137 .\" way too many mistakes in technical documents.
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138 .if n .ad l
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139 .nh
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140 .SH "NAME"
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141 gc\-analyze \- Analyze Garbage Collector (GC) memory dumps
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142 .SH "SYNOPSIS"
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143 .IX Header "SYNOPSIS"
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144 \&\fBgc-analyze\fR [\fB\s-1OPTION\s0\fR] ... [\fIfile\fR]
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145 .SH "DESCRIPTION"
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146 .IX Header "DESCRIPTION"
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147 \&\fBgc-analyze\fR prints an analysis of a \s-1GC\s0 memory dump to
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148 standard out.
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149 .PP
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150 The memory dumps may be created by calling
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151 \&\f(CW\*(C`gnu.gcj.util.GCInfo.enumerate(String namePrefix)\*(C'\fR from java
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152 code. A memory dump will be created on an out of memory condition if
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153 \&\f(CW\*(C`gnu.gcj.util.GCInfo.setOOMDump(String namePrefix)\*(C'\fR is called
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154 before the out of memory occurs.
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155 .PP
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156 Running this program will create two files: \fITestDump001\fR and
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157 \&\fITestDump001.bytes\fR.
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158 .PP
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159 .Vb 2
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160 \& import gnu.gcj.util.*;
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161 \& import java.util.*;
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162 \&
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163 \& public class GCDumpTest
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164 \& {
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165 \& static public void main(String args[])
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166 \& {
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167 \& ArrayList<String> l = new ArrayList<String>(1000);
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168 \&
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169 \& for (int i = 1; i < 1500; i++) {
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170 \& l.add("This is string #" + i);
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171 \& }
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172 \& GCInfo.enumerate("TestDump");
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173 \& }
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174 \& }
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175 .Ve
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176 .PP
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177 The memory dump may then be displayed by running:
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178 .PP
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179 .Vb 1
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180 \& gc\-analyze \-v TestDump001
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181 .Ve
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182 .SH "OPTIONS"
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183 .IX Header "OPTIONS"
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184 .IP "\fB\-\-verbose\fR" 4
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185 .IX Item "--verbose"
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186 .PD 0
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187 .IP "\fB\-v\fR" 4
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188 .IX Item "-v"
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189 .PD
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190 Verbose output.
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191 .IP "\fB\-p\fR \fItool-prefix\fR" 4
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192 .IX Item "-p tool-prefix"
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193 Prefix added to the names of the \fBnm\fR and \fBreadelf\fR commands.
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194 .IP "\fB\-d\fR \fIdirectory\fR" 4
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195 .IX Item "-d directory"
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196 Directory that contains the executable and shared libraries used when
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197 the dump was generated.
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198 .IP "\fB\-\-help\fR" 4
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199 .IX Item "--help"
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200 Print a help message, then exit.
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201 .IP "\fB\-\-version\fR" 4
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202 .IX Item "--version"
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203 Print version information, then exit.
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204 .SH "SEE ALSO"
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205 .IX Header "SEE ALSO"
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206 .SH "COPYRIGHT"
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207 .IX Header "COPYRIGHT"
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208 Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
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209 .PP
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210 Permission is granted to copy, distribute and/or modify this document
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211 under the terms of the \s-1GNU\s0 Free Documentation License, Version 1.2 or
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212 any later version published by the Free Software Foundation; with no
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213 Invariant Sections, the Front-Cover Texts being (a) (see below), and
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214 with the Back-Cover Texts being (b) (see below).
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215 A copy of the license is included in the
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216 man page \fIgfdl\fR\|(7).
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217 .PP
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218 (a) The \s-1FSF\s0's Front-Cover Text is:
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219 .PP
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220 .Vb 1
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221 \& A GNU Manual
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222 .Ve
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223 .PP
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224 (b) The \s-1FSF\s0's Back-Cover Text is:
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225 .PP
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226 .Vb 3
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227 \& You have freedom to copy and modify this GNU Manual, like GNU
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228 \& software. Copies published by the Free Software Foundation raise
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229 \& funds for GNU development.
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230 .Ve
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