250 lines
7.9 KiB
Groff
250 lines
7.9 KiB
Groff
.\" Automatically generated by Pod::Man version 1.02
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.\" Wed May 30 12:24:30 2001
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.\" ======================================================================
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.\"
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.IX Title "CXXFILT.MAN 1"
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.TH CXXFILT.MAN 1 "binutils-2.11.90" "2001-05-30" "GNU"
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.UC
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.SH "NAME"
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cxxfilt \- Demangle \*(C+ and Java symbols.
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.SH "SYNOPSIS"
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.IX Header "SYNOPSIS"
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c++filt [ \-_ | \-\-strip-underscores ]
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[ \-j | \-\-java ]
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[ \-n | \-\-no-strip-underscores ]
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[ \-s \fIformat\fR | \-\-format=\fIformat\fR ]
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[ \-\-help ] [ \-\-version ] [ \fIsymbol\fR... ]
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.SH "DESCRIPTION"
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.IX Header "DESCRIPTION"
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The \*(C+ and Java languages provides function overloading, which means
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that you can write many functions with the same name (providing each
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takes parameters of different types). All \*(C+ and Java function names
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are encoded into a low-level assembly label (this process is known as
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\&\fImangling\fR). The \f(CW\*(C`c++filt\*(C'\fR
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[1]
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program does the inverse mapping: it decodes (\fIdemangles\fR) low-level
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names into user-level names so that the linker can keep these overloaded
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functions from clashing.
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.PP
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Every alphanumeric word (consisting of letters, digits, underscores,
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dollars, or periods) seen in the input is a potential label. If the
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label decodes into a \*(C+ name, the \*(C+ name replaces the low-level
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name in the output.
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.PP
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You can use \f(CW\*(C`c++filt\*(C'\fR to decipher individual symbols:
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.PP
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.Vb 1
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\& c++filt I<symbol>
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.Ve
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If no \fIsymbol\fR arguments are given, \f(CW\*(C`c++filt\*(C'\fR reads symbol
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names from the standard input and writes the demangled names to the
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standard output. All results are printed on the standard output.
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.SH "OPTIONS"
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.IX Header "OPTIONS"
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.Ip "\f(CW\*(C`\-_\*(C'\fR" 4
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.IX Item "-_"
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.Ip "\f(CW\*(C`\-\-strip\-underscores\*(C'\fR" 4
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.IX Item "--strip-underscores"
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On some systems, both the C and \*(C+ compilers put an underscore in front
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of every name. For example, the C name \f(CW\*(C`foo\*(C'\fR gets the low-level
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name \f(CW\*(C`_foo\*(C'\fR. This option removes the initial underscore. Whether
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\&\f(CW\*(C`c++filt\*(C'\fR removes the underscore by default is target dependent.
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.Ip "\f(CW\*(C`\-j\*(C'\fR" 4
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.IX Item "-j"
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.Ip "\f(CW\*(C`\-\-java\*(C'\fR" 4
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.IX Item "--java"
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Prints demangled names using Java syntax. The default is to use \*(C+
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syntax.
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.Ip "\f(CW\*(C`\-n\*(C'\fR" 4
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.IX Item "-n"
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.Ip "\f(CW\*(C`\-\-no\-strip\-underscores\*(C'\fR" 4
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.IX Item "--no-strip-underscores"
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Do not remove the initial underscore.
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.Ip "\f(CW\*(C`\-s \f(CIformat\f(CW\*(C'\fR" 4
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.IX Item "-s format"
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.Ip "\f(CW\*(C`\-\-format=\f(CIformat\f(CW\*(C'\fR" 4
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.IX Item "--format=format"
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\&\s-1GNU\s0 \f(CW\*(C`nm\*(C'\fR can decode three different methods of mangling, used by
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different \*(C+ compilers. The argument to this option selects which
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method it uses:
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.RS 4
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.Ip "\f(CW\*(C`gnu\*(C'\fR" 4
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.IX Item "gnu"
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the one used by the \s-1GNU\s0 compiler (the default method)
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.Ip "\f(CW\*(C`lucid\*(C'\fR" 4
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.IX Item "lucid"
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the one used by the Lucid compiler
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.Ip "\f(CW\*(C`arm\*(C'\fR" 4
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.IX Item "arm"
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the one specified by the \*(C+ Annotated Reference Manual
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.Ip "\f(CW\*(C`hp\*(C'\fR" 4
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.IX Item "hp"
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the one used by the \s-1HP\s0 compiler
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.Ip "\f(CW\*(C`edg\*(C'\fR" 4
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.IX Item "edg"
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the one used by the \s-1EDG\s0 compiler
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.Ip "\f(CW\*(C`gnu\-new\-abi\*(C'\fR" 4
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.IX Item "gnu-new-abi"
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the one used by the \s-1GNU\s0 compiler with the new \s-1ABI\s0.
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.RE
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.RS 4
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.RE
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.Ip "\f(CW\*(C`\-\-help\*(C'\fR" 4
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.IX Item "--help"
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Print a summary of the options to \f(CW\*(C`c++filt\*(C'\fR and exit.
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.Ip "\f(CW\*(C`\-\-version\*(C'\fR" 4
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.IX Item "--version"
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Print the version number of \f(CW\*(C`c++filt\*(C'\fR and exit.
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.SH "FOOTNOTES"
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.IX Header "FOOTNOTES"
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.Ip "1." 4
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\&\s-1MS-DOS\s0 does not allow \f(CW\*(C`+\*(C'\fR characters in file names, so on
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\&\s-1MS-DOS\s0 this program is named \f(CW\*(C`cxxfilt\*(C'\fR.
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.SH "SEE ALSO"
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.IX Header "SEE ALSO"
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the Info entries for \fIbinutils\fR.
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.SH "COPYRIGHT"
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.IX Header "COPYRIGHT"
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Copyright (c) 1991, 92, 93, 94, 95, 96, 97, 98, 99, 2000, 2001 Free Software Foundation, Inc.
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.PP
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Permission is granted to copy, distribute and/or modify this document
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under the terms of the \s-1GNU\s0 Free Documentation License, Version 1.1
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or any later version published by the Free Software Foundation;
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with no Invariant Sections, with no Front-Cover Texts, and with no
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Back-Cover Texts. A copy of the license is included in the
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section entitled \*(L"\s-1GNU\s0 Free Documentation License\*(R".
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