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137 | .\" ====================================================================== | |
138 | .\" | |
139 | .IX Title "C++FILT 1" | |
140 | .TH C++FILT 1 "binutils-2.11.90.0.27" "2001-09-18" "GNU" | |
141 | .UC | |
142 | .SH "NAME" | |
143 | c++filt \- Demangle \*(C+ and Java symbols. | |
144 | .SH "SYNOPSIS" | |
145 | .IX Header "SYNOPSIS" | |
146 | c++filt [\fB\-_\fR|\fB\*(--strip-underscores\fR] | |
147 | [\fB\-j\fR|\fB\*(--java\fR] | |
148 | [\fB\-n\fR|\fB\*(--no-strip-underscores\fR] | |
149 | [\fB\-s\fR \fIformat\fR|\fB\*(--format=\fR\fIformat\fR] | |
150 | [\fB\*(--help\fR] [\fB\*(--version\fR] [\fIsymbol\fR...] | |
151 | .SH "DESCRIPTION" | |
152 | .IX Header "DESCRIPTION" | |
153 | The \*(C+ and Java languages provides function overloading, which means | |
154 | that you can write many functions with the same name (providing each | |
155 | takes parameters of different types). All \*(C+ and Java function names | |
156 | are encoded into a low-level assembly label (this process is known as | |
157 | \&\fImangling\fR). The \fBc++filt\fR | |
158 | [1] | |
159 | program does the inverse mapping: it decodes (\fIdemangles\fR) low-level | |
160 | names into user-level names so that the linker can keep these overloaded | |
161 | functions from clashing. | |
162 | .PP | |
163 | Every alphanumeric word (consisting of letters, digits, underscores, | |
164 | dollars, or periods) seen in the input is a potential label. If the | |
165 | label decodes into a \*(C+ name, the \*(C+ name replaces the low-level | |
166 | name in the output. | |
167 | .PP | |
168 | You can use \fBc++filt\fR to decipher individual symbols: | |
169 | .PP | |
170 | .Vb 1 | |
171 | \& c++filt I<symbol> | |
172 | .Ve | |
173 | If no \fIsymbol\fR arguments are given, \fBc++filt\fR reads symbol | |
174 | names from the standard input and writes the demangled names to the | |
175 | standard output. All results are printed on the standard output. | |
176 | .SH "OPTIONS" | |
177 | .IX Header "OPTIONS" | |
178 | .Ip "\fB\-_\fR" 4 | |
179 | .IX Item "-_" | |
180 | .PD 0 | |
181 | .Ip "\fB\*(--strip-underscores\fR" 4 | |
182 | .IX Item "strip-underscores" | |
183 | .PD | |
184 | On some systems, both the C and \*(C+ compilers put an underscore in front | |
185 | of every name. For example, the C name \f(CW\*(C`foo\*(C'\fR gets the low-level | |
186 | name \f(CW\*(C`_foo\*(C'\fR. This option removes the initial underscore. Whether | |
187 | \&\fBc++filt\fR removes the underscore by default is target dependent. | |
188 | .Ip "\fB\-j\fR" 4 | |
189 | .IX Item "-j" | |
190 | .PD 0 | |
191 | .Ip "\fB\*(--java\fR" 4 | |
192 | .IX Item "java" | |
193 | .PD | |
194 | Prints demangled names using Java syntax. The default is to use \*(C+ | |
195 | syntax. | |
196 | .Ip "\fB\-n\fR" 4 | |
197 | .IX Item "-n" | |
198 | .PD 0 | |
199 | .Ip "\fB\*(--no-strip-underscores\fR" 4 | |
200 | .IX Item "no-strip-underscores" | |
201 | .PD | |
202 | Do not remove the initial underscore. | |
203 | .Ip "\fB\-s\fR \fIformat\fR" 4 | |
204 | .IX Item "-s format" | |
205 | .PD 0 | |
206 | .Ip "\fB\*(--format=\fR\fIformat\fR" 4 | |
207 | .IX Item "format=format" | |
208 | .PD | |
209 | \&\s-1GNU\s0 \fBnm\fR can decode three different methods of mangling, used by | |
210 | different \*(C+ compilers. The argument to this option selects which | |
211 | method it uses: | |
212 | .RS 4 | |
213 | .if n .Ip "\f(CW""""gnu""""\fR" 4 | |
214 | .el .Ip "\f(CWgnu\fR" 4 | |
215 | .IX Item "gnu" | |
216 | the one used by the \s-1GNU\s0 compiler (the default method) | |
217 | .if n .Ip "\f(CW""""lucid""""\fR" 4 | |
218 | .el .Ip "\f(CWlucid\fR" 4 | |
219 | .IX Item "lucid" | |
220 | the one used by the Lucid compiler | |
221 | .if n .Ip "\f(CW""""arm""""\fR" 4 | |
222 | .el .Ip "\f(CWarm\fR" 4 | |
223 | .IX Item "arm" | |
224 | the one specified by the \*(C+ Annotated Reference Manual | |
225 | .if n .Ip "\f(CW""""hp""""\fR" 4 | |
226 | .el .Ip "\f(CWhp\fR" 4 | |
227 | .IX Item "hp" | |
228 | the one used by the \s-1HP\s0 compiler | |
229 | .if n .Ip "\f(CW""""edg""""\fR" 4 | |
230 | .el .Ip "\f(CWedg\fR" 4 | |
231 | .IX Item "edg" | |
232 | the one used by the \s-1EDG\s0 compiler | |
233 | .if n .Ip "\f(CW""""gnu\-new\-abi""""\fR" 4 | |
234 | .el .Ip "\f(CWgnu\-new\-abi\fR" 4 | |
235 | .IX Item "gnu-new-abi" | |
236 | the one used by the \s-1GNU\s0 compiler with the new \s-1ABI\s0. | |
237 | .RE | |
238 | .RS 4 | |
239 | .RE | |
240 | .Ip "\fB\*(--help\fR" 4 | |
241 | .IX Item "help" | |
242 | Print a summary of the options to \fBc++filt\fR and exit. | |
243 | .Ip "\fB\*(--version\fR" 4 | |
244 | .IX Item "version" | |
245 | Print the version number of \fBc++filt\fR and exit. | |
246 | .SH "FOOTNOTES" | |
247 | .IX Header "FOOTNOTES" | |
248 | .Ip "1." 4 | |
249 | \&\s-1MS-DOS\s0 does not allow \f(CW\*(C`+\*(C'\fR characters in file names, so on | |
250 | \&\s-1MS-DOS\s0 this program is named \fBc++filt\fR. | |
251 | .SH "SEE ALSO" | |
252 | .IX Header "SEE ALSO" | |
253 | the Info entries for \fIbinutils\fR. | |
254 | .SH "COPYRIGHT" | |
255 | .IX Header "COPYRIGHT" | |
256 | Copyright (c) 1991, 92, 93, 94, 95, 96, 97, 98, 99, 2000, 2001 Free Software Foundation, Inc. | |
257 | .PP | |
258 | Permission is granted to copy, distribute and/or modify this document | |
259 | under the terms of the \s-1GNU\s0 Free Documentation License, Version 1.1 | |
260 | or any later version published by the Free Software Foundation; | |
261 | with no Invariant Sections, with no Front-Cover Texts, and with no | |
262 | Back-Cover Texts. A copy of the license is included in the | |
263 | section entitled \*(L"\s-1GNU\s0 Free Documentation License\*(R". |