binutils/cxxfilt.man

   1 .\" Copyright (c) 1991 Free Software Foundation
   2 .\" See section COPYING for conditions for redistribution
   3 .TH @PROGRAM@ 1 "June 1993" "cygnus support" "GNU Development Tools"
   4 .de BP
   5 .sp
   6 .ti \-.2i
   7 \(**
   8 ..
   9
  10 .SH NAME
  11 @PROGRAM@ \- demangle C++ symbols
  12
  13 .SH SYNOPSIS
  14 .hy 0
  15 .na
  16 .TP
  17 .B @PROGRAM@
  18 .RB "[\|" \-_ | \-\-strip-underscores "\|]"
  19 .RB "[\|" "\-s {gnu,lucid,arm} " | " \-\-format={gnu,lucid,arm}" "\|]"
  20 .RB "[\|" \-\-help "\|]"
  21 .RB "[\|" \-\-version "\|]"
  22 .RB "[\|" symbol "...\|]"
  23 .SH DESCRIPTION
  24 The C++ language provides function overloading, which means that you can
  25 write many functions with the same name (providing each takes parameters
  26 of different types).  All C++ function names are encoded into a
  27 low-level assembly label (this process is known as
  28 .I mangling\c
  29 ).  The
  30 .B @PROGRAM@
  31 program does the inverse mapping: it decodes (\fIdemangles\fR)
  32 low-level names into user-level names so that the linker can keep
  33 these overloaded functions from clashing.
  34 .PP
  35 Every alphanumeric word (consisting of letters, digits, underscores,
  36 dollars, or periods) seen in the input is a potential label.  If the
  37 label decodes into a C++ name, the C++ name replaces the low-level
  38 name in the output.
  39 .PP
  40 You can use
  41 .B @PROGRAM@
  42 to decipher individual symbols by specifying these symbols on the
  43 command line.
  44 .PP
  45 If no
  46 .B symbol
  47 arguments are given,
  48 .B @PROGRAM@
  49 reads symbol names from the standard input and writes the demangled
  50 names to the standard output.  All results are printed on the standard
  51 output.
  52 .SH OPTIONS
  53 .TP
  54 .B \-_
  55 .TP
  56 .B \-\-strip\-underscores
  57 On some systems, both the C and C++ compilers put an
  58 underscore in front of every name.  For example, the C name
  59 .B foo
  60 gets the low-level name
  61 .BR _foo .
  62 This option removes the leading underscore.
  63
  64 .TP
  65 .B "\-s {gnu,lucid,arm}"
  66 .TP
  67 .B \-\-format={gnu,lucid,arm}
  68 GNU
  69 .B nm
  70 can decode three different methods of mangling, used by different C++
  71 compilers.  This option selects which method it uses: the one used by
  72 the GNU compiler, the one used by the Lucid compiler, or the one
  73 specified by the C++ Annotated Reference Manual.  The default is the
  74 GNU style.
  75
  76 .TP
  77 .B \-\-help
  78 Print a summary of the options to
  79 .B @PROGRAM@
  80 and exit.
  81
  82 .TP
  83 .B \-\-version
  84 Print the version number of
  85 .B @PROGRAM@
  86 and exit.
  87
  88 .SH "SEE ALSO"
  89 .RB "`\|" binutils "\|'"
  90 entry in
  91 .B
  92 info\c
  93 \&;
  94 .I
  95 The GNU Binary Utilities\c
  96 \&, Roland H. Pesch (June 1993).
  97
  98 .SH COPYING
  99 Copyright (c) 1993 Free Software Foundation, Inc.
 100 .PP
 101 Permission is granted to make and distribute verbatim copies of
 102 this manual provided the copyright notice and this permission notice
 103 are preserved on all copies.
 104 .PP
 105 Permission is granted to copy and distribute modified versions of this
 106 manual under the conditions for verbatim copying, provided that the
 107 entire resulting derived work is distributed under the terms of a
 108 permission notice identical to this one.
 109 .PP
 110 Permission is granted to copy and distribute translations of this
 111 manual into another language, under the above conditions for modified
 112 versions, except that this permission notice may be included in
 113 translations approved by the Free Software Foundation instead of in
 114 the original English.