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STRIP(1)		     GNU Development Tools		      STRIP(1)

       strip - Discard symbols from object files.

       strip [-F bfdname |--target=bfdname]
	     [-I bfdname |--input-target=bfdname]
	     [-O bfdname |--output-target=bfdname]
	     [-K symbolname |--keep-symbol=symbolname]
	     [-N symbolname |--strip-symbol=symbolname]
	     [-x|--discard-all] [-X |--discard-locals]
	     [-R sectionname |--remove-section=sectionname]
	     [-o file] [-p|--preserve-dates]
	     [-v |--verbose] [-V|--version]
	     [--help] [--info]

       GNU strip discards all symbols from object files objfile.  The list of
       object files may include archives.  At least one object file must be

       strip modifies the files named in its argument, rather than writing
       modified copies under different names.

       -F bfdname
	   Treat the original objfile as a file with the object code format
	   bfdname, and rewrite it in the same format.

	   Show a summary of the options to strip and exit.

	   Display a list showing all architectures and object formats

       -I bfdname
	   Treat the original objfile as a file with the object code format

       -O bfdname
	   Replace objfile with a file in the output format bfdname.

       -R sectionname
	   Remove any section named sectionname from the output file.  This
	   option may be given more than once.	Note that using this option
	   inappropriately may make the output file unusable.

	   Remove all symbols.

	   Remove debugging symbols only.

	   Remove all symbols that are not needed for relocation processing.

       -K symbolname
	   When stripping symbols, keep symbol symbolname even if it would
	   normally be stripped.  This option may be given more than once.

       -N symbolname
	   Remove symbol symbolname from the source file. This option may be
	   given more than once, and may be combined with strip options other
	   than -K.

       -o file
	   Put the stripped output in file, rather than replacing the existing
	   file.  When this argument is used, only one objfile argument may be

	   Preserve the access and modification dates of the file.

	   Permit regular expressions in symbolnames used in other command
	   line options.  The question mark (?), asterisk (*), backslash (\)
	   and square brackets ([]) operators can be used anywhere in the
	   symbol name.	 If the first character of the symbol name is the
	   exclamation point (!) then the sense of the switch is reversed for
	   that symbol.	 For example:

		     -w -K !foo -K fo*

	   would cause strip to only keep symbols that start with the letters
	   "fo", but to discard the symbol "foo".

	   Remove non-global symbols.

	   Remove compiler-generated local symbols.  (These usually start with
	   L or ..)

	   When stripping a file, perhaps with --strip-debug or
	   --strip-unneeded, retain any symbols specifying source file names,
	   which would otherwise get stripped.

	   Strip a file, removing contents of any sections that would not be
	   stripped by --strip-debug and leaving the debugging sections
	   intact.  In ELF files, this preserves all note sections in the

	   The intention is that this option will be used in conjunction with
	   --add-gnu-debuglink to create a two part executable.	 One a
	   stripped binary which will occupy less space in RAM and in a
	   distribution and the second a debugging information file which is
	   only needed if debugging abilities are required.  The suggested
	   procedure to create these files is as follows:

	   1.<Link the executable as normal.  Assuming that is is called>
	       "foo" then...

	   1.<Run "objcopy --only-keep-debug foo foo.dbg" to>
	       create a file containing the debugging info.

	   1.<Run "objcopy --strip-debug foo" to create a>
	       stripped executable.

	   1.<Run "objcopy --add-gnu-debuglink=foo.dbg foo">
	       to add a link to the debugging info into the stripped

	   Note---the choice of ".dbg" as an extension for the debug info file
	   is arbitrary.  Also the "--only-keep-debug" step is optional.  You
	   could instead do this:

	   1.<Link the executable as normal.>
	   1.<Copy "foo" to "foo.full">
	   1.<Run "strip --strip-debug foo">
	   1.<Run "objcopy --add-gnu-debuglink=foo.full foo">

	   i.e., the file pointed to by the --add-gnu-debuglink can be the
	   full executable.  It does not have to be a file created by the
	   --only-keep-debug switch.

	   Note---this switch is only intended for use on fully linked files.
	   It does not make sense to use it on object files where the
	   debugging information may be incomplete.  Besides the gnu_debuglink
	   feature currently only supports the presence of one filename
	   containing debugging information, not multiple filenames on a one-
	   per-object-file basis.

	   Show the version number for strip.

	   Verbose output: list all object files modified.  In the case of
	   archives, strip -v lists all members of the archive.

	   Read command-line options from file.	 The options read are inserted
	   in place of the original @file option.  If file does not exist, or
	   cannot be read, then the option will be treated literally, and not

	   Options in file are separated by whitespace.	 A whitespace
	   character may be included in an option by surrounding the entire
	   option in either single or double quotes.  Any character (including
	   a backslash) may be included by prefixing the character to be
	   included with a backslash.  The file may itself contain additional
	   @file options; any such options will be processed recursively.

       the Info entries for binutils.

       Copyright (c) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
       2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free
       Software Foundation, Inc.

       Permission is granted to copy, distribute and/or modify this document
       under the terms of the GNU Free Documentation License, Version 1.3 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 "GNU
       Free Documentation License".

binutils-2.20			  2009-10-16			      STRIP(1)

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