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77dd44697f
(line_numbers): New static variable. (long_options): Add "line-numbers". (usage): Mention -l and --line-numbers. (main): Handle -l. (print_symbol): Print line numbers if requested. (get_relocs): New static function. * binutils.texi, nm.1: Document -l/--line-numbers.
231 lines
5.2 KiB
Groff
231 lines
5.2 KiB
Groff
.\" Copyright (c) 1991 Free Software Foundation
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.\" See section COPYING for conditions for redistribution
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.TH nm 1 "5 November 1991" "cygnus support" "GNU Development Tools"
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.de BP
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.sp
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.ti \-.2i
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\(**
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..
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.SH NAME
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nm \- list symbols from object files.
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.SH SYNOPSIS
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.hy 0
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.na
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.TP
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.B nm
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.RB "[\|" \-a | \-\-debug\-syms "\|]"
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.RB "[\|" \-g | \-\-extern\-only "\|]"
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.RB "[\|" \-B "\|]"
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.RB "[\|" \-C | \-\-demangle "\|]"
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.RB "[\|" \-D | \-\-dynamic "\|]"
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.RB "[\|" \-s | \-\-print\-armap "\|]"
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.RB "[\|" \-o | \-\-print\-file\-name "\|]"
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.RB "[\|" \-n | \-\-numeric\-sort "\|]"
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.RB "[\|" \-p | \-\-no\-sort "\|]"
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.RB "[\|" \-r | \-\-reverse\-sort "\|]"
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.RB "[\|" \-\-size\-sort "\|]"
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.RB "[\|" \-u | \-\-undefined\-only "\|]"
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.RB "[\|" \-l | \-\-line\-numbers "\|]"
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.RB "[\|" \-\-help "\|]"
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.RB "[\|" \-\-version "\|]"
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.RB "[\|" "\-t \fIradix" | \-\-radix=\fIradix "\|]"
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.RB "[\|" \-P | --portability "\|]"
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.RB "[\|" "\-f \fIformat" | \-\-format=\fIformat "\|]"
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.RB "[\|" "\-\-target=\fIbfdname" "\|]"
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.RB "[\|" \c
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.I objfile\c
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\&.\|.\|.\|]
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.ad b
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.hy 1
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.SH DESCRIPTION
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GNU \c
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.B nm\c
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\& lists the symbols from object files \c
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.I objfile\c
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\&. If no object files are given as arguments, \c
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.B nm\c
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\& assumes `\|\c
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.B a.out\c
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\|'.
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.SH OPTIONS
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The long and short forms of options, shown here as alternatives, are
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equivalent.
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.TP
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.B \-A
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.TP
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.B \-o
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.TP
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.B \-\-print\-file\-name
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Precede each symbol by the name of the input file where it was found,
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rather than identifying the input file once only before all of its
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symbols.
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.TP
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.B \-a
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.TP
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.B \-\-debug\-syms
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Display debugger-only symbols; normally these are not listed.
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.TP
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.B \-B
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The same as
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.B \-\-format=bsd
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(for compatibility with the MIPS \fBnm\fP).
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.TP
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.B \-C
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.TP
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.B \-\-demangle
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Decode (\fIdemangle\fP) low-level symbol names into user-level names.
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Besides removing any initial underscore prepended by the system, this
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makes C++ function names readable.
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.TP
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.B \-D
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.TP
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.B \-\-dynamic
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Display the dynamic symbols rather than the normal symbols. This is
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only meaningful for dynamic objects, such as certain types of shared
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libraries.
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.TP
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.B "\-f \fIformat"
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Use the output format \fIformat\fP, which can be ``bsd'',
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``sysv'', or ``posix''. The default is ``bsd''.
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Only the first character of \fIformat\fP is significant; it can be
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either upper or lower case.
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.TP
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.B \-g
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.TP
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.B \-\-extern\-only
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Display only external symbols.
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.TP
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.B \-n
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.TP
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.B \-v
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.TP
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.B \-\-numeric\-sort
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Sort symbols numerically by their addresses, not alphabetically by their
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names.
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.TP
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.B \-p
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.TP
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.B \-\-no\-sort
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Don't bother to sort the symbols in any order; just print them in the
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order encountered.
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.TP
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.B \-P
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.TP
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.B \-\-portability
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Use the POSIX.2 standard output format instead of the default format.
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Equivalent to ``\-f posix''.
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.TP
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.B \-s
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.TP
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.B \-\-print\-armap
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When listing symbols from archive members, include the index: a mapping
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(stored in the archive by \c
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.B ar\c
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\& or \c
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.B ranlib\c
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\&) of what modules
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contain definitions for what names.
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.TP
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.B \-r
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.TP
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.B \-\-reverse\-sort
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Reverse the sense of the sort (whether numeric or alphabetic); let the
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last come first.
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.TP
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.B \-\-size\-sort
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Sort symbols by size. The size is computed as the difference between
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the value of the symbol and the value of the symbol with the next higher
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value. The size of the symbol is printed, rather than the value.
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.TP
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.B "\-t \fIradix"
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.TP
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.B "\-\-radix=\fIradix"
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Use \fIradix\fP as the radix for printing the symbol values. It must be
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``d'' for decimal, ``o'' for octal, or ``x'' for hexadecimal.
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.TP
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.BI "\-\-target=" "bfdname"
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Specify an object code format other than your system's default format.
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See
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.BR objdump ( 1 ),
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for information on listing available formats.
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.TP
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.B \-u
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.TP
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.B \-\-undefined\-only
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Display only undefined symbols (those external to each object file).
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.TP
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.B \-l
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.TP
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.B \-\-line\-numbers
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For each symbol, use debugging information to try to find a filename and
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line number. For a defined symbol, look for the line number of the
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address of the symbol. For an undefined symbol, look for the line
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number of a relocation entry which refers to the symbol. If line number
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information can be found, print it after the other symbol information.
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.TP
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.B \-V
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.TP
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.B \-\-version
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Show the version number of
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.B nm
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and exit.
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.TP
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.B \-\-help
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Show a summary of the options to
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.B nm
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and exit.
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.SH "SEE ALSO"
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.RB "`\|" binutils "\|'"
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entry in
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.B
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info\c
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\&;
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.I
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The GNU Binary Utilities\c
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\&, Roland H. Pesch (October 1991);
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.BR ar "(" 1 "),"
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.BR objdump ( 1 ),
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.BR ranlib "(" 1 ")."
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.SH COPYING
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Copyright (c) 1991 Free Software Foundation, Inc.
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.PP
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Permission is granted to make and distribute verbatim copies of
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this manual provided the copyright notice and this permission notice
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are preserved on all copies.
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.PP
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Permission is granted to copy and distribute modified versions of this
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manual under the conditions for verbatim copying, provided that the
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entire resulting derived work is distributed under the terms of a
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permission notice identical to this one.
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.PP
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Permission is granted to copy and distribute translations of this
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manual into another language, under the above conditions for modified
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versions, except that this permission notice may be included in
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translations approved by the Free Software Foundation instead of in
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the original English.
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