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| .\" ====================================================================== |
| .\" |
| .IX Title "CXXFILT.MAN 1" |
| .TH CXXFILT.MAN 1 "binutils-2.11.90" "2001-05-30" "GNU" |
| .UC |
| .SH "NAME" |
| cxxfilt \- Demangle \*(C+ and Java symbols. |
| .SH "SYNOPSIS" |
| .IX Header "SYNOPSIS" |
| c++filt [ \-_ | \-\-strip-underscores ] |
| [ \-j | \-\-java ] |
| [ \-n | \-\-no-strip-underscores ] |
| [ \-s \fIformat\fR | \-\-format=\fIformat\fR ] |
| [ \-\-help ] [ \-\-version ] [ \fIsymbol\fR... ] |
| .SH "DESCRIPTION" |
| .IX Header "DESCRIPTION" |
| The \*(C+ and Java languages provides function overloading, which means |
| that you can write many functions with the same name (providing each |
| takes parameters of different types). All \*(C+ and Java function names |
| are encoded into a low-level assembly label (this process is known as |
| \&\fImangling\fR). The \f(CW\*(C`c++filt\*(C'\fR |
| [1] |
| program does the inverse mapping: it decodes (\fIdemangles\fR) low-level |
| names into user-level names so that the linker can keep these overloaded |
| functions from clashing. |
| .PP |
| Every alphanumeric word (consisting of letters, digits, underscores, |
| dollars, or periods) seen in the input is a potential label. If the |
| label decodes into a \*(C+ name, the \*(C+ name replaces the low-level |
| name in the output. |
| .PP |
| You can use \f(CW\*(C`c++filt\*(C'\fR to decipher individual symbols: |
| .PP |
| .Vb 1 |
| \& c++filt I<symbol> |
| .Ve |
| If no \fIsymbol\fR arguments are given, \f(CW\*(C`c++filt\*(C'\fR reads symbol |
| names from the standard input and writes the demangled names to the |
| standard output. All results are printed on the standard output. |
| .SH "OPTIONS" |
| .IX Header "OPTIONS" |
| .Ip "\f(CW\*(C`\-_\*(C'\fR" 4 |
| .IX Item "-_" |
| .Ip "\f(CW\*(C`\-\-strip\-underscores\*(C'\fR" 4 |
| .IX Item "--strip-underscores" |
| On some systems, both the C and \*(C+ compilers put an underscore in front |
| of every name. For example, the C name \f(CW\*(C`foo\*(C'\fR gets the low-level |
| name \f(CW\*(C`_foo\*(C'\fR. This option removes the initial underscore. Whether |
| \&\f(CW\*(C`c++filt\*(C'\fR removes the underscore by default is target dependent. |
| .Ip "\f(CW\*(C`\-j\*(C'\fR" 4 |
| .IX Item "-j" |
| .Ip "\f(CW\*(C`\-\-java\*(C'\fR" 4 |
| .IX Item "--java" |
| Prints demangled names using Java syntax. The default is to use \*(C+ |
| syntax. |
| .Ip "\f(CW\*(C`\-n\*(C'\fR" 4 |
| .IX Item "-n" |
| .Ip "\f(CW\*(C`\-\-no\-strip\-underscores\*(C'\fR" 4 |
| .IX Item "--no-strip-underscores" |
| Do not remove the initial underscore. |
| .Ip "\f(CW\*(C`\-s \f(CIformat\f(CW\*(C'\fR" 4 |
| .IX Item "-s format" |
| .Ip "\f(CW\*(C`\-\-format=\f(CIformat\f(CW\*(C'\fR" 4 |
| .IX Item "--format=format" |
| \&\s-1GNU\s0 \f(CW\*(C`nm\*(C'\fR can decode three different methods of mangling, used by |
| different \*(C+ compilers. The argument to this option selects which |
| method it uses: |
| .RS 4 |
| .Ip "\f(CW\*(C`gnu\*(C'\fR" 4 |
| .IX Item "gnu" |
| the one used by the \s-1GNU\s0 compiler (the default method) |
| .Ip "\f(CW\*(C`lucid\*(C'\fR" 4 |
| .IX Item "lucid" |
| the one used by the Lucid compiler |
| .Ip "\f(CW\*(C`arm\*(C'\fR" 4 |
| .IX Item "arm" |
| the one specified by the \*(C+ Annotated Reference Manual |
| .Ip "\f(CW\*(C`hp\*(C'\fR" 4 |
| .IX Item "hp" |
| the one used by the \s-1HP\s0 compiler |
| .Ip "\f(CW\*(C`edg\*(C'\fR" 4 |
| .IX Item "edg" |
| the one used by the \s-1EDG\s0 compiler |
| .Ip "\f(CW\*(C`gnu\-new\-abi\*(C'\fR" 4 |
| .IX Item "gnu-new-abi" |
| the one used by the \s-1GNU\s0 compiler with the new \s-1ABI\s0. |
| .RE |
| .RS 4 |
| .RE |
| .Ip "\f(CW\*(C`\-\-help\*(C'\fR" 4 |
| .IX Item "--help" |
| Print a summary of the options to \f(CW\*(C`c++filt\*(C'\fR and exit. |
| .Ip "\f(CW\*(C`\-\-version\*(C'\fR" 4 |
| .IX Item "--version" |
| Print the version number of \f(CW\*(C`c++filt\*(C'\fR and exit. |
| .SH "FOOTNOTES" |
| .IX Header "FOOTNOTES" |
| .Ip "1." 4 |
| \&\s-1MS-DOS\s0 does not allow \f(CW\*(C`+\*(C'\fR characters in file names, so on |
| \&\s-1MS-DOS\s0 this program is named \f(CW\*(C`cxxfilt\*(C'\fR. |
| .SH "SEE ALSO" |
| .IX Header "SEE ALSO" |
| the Info entries for \fIbinutils\fR. |
| .SH "COPYRIGHT" |
| .IX Header "COPYRIGHT" |
| Copyright (c) 1991, 92, 93, 94, 95, 96, 97, 98, 99, 2000, 2001 Free Software Foundation, Inc. |
| .PP |
| Permission is granted to copy, distribute and/or modify this document |
| under the terms of the \s-1GNU\s0 Free Documentation License, Version 1.1 |
| or any later version published by the Free Software Foundation; |
| with no Invariant Sections, with no Front-Cover Texts, and with no |
| Back-Cover Texts. A copy of the license is included in the |
| section entitled \*(L"\s-1GNU\s0 Free Documentation License\*(R". |