man pages section 1: User Commands

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Updated: July 2014

gstrip (1g)


gstrip - 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 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 given.

     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 available.

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

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

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GNU Development Tools                                    STRIP(1)


     -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 the contents of all DWARF .dwo sections, leaving
         the remaining debugging sections and all symbols intact.
         See the description of this option in the objcopy
         section for more information.

         Remove all symbols that are not needed for relocation

     -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 specified.

         Preserve the access and modification dates of the file.


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GNU Development Tools                                    STRIP(1)

         Operate in deterministic mode.  When copying archive
         members and writing the archive index, use zero for
         UIDs, GIDs, timestamps, and use consistent file modes
         for all files.

         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 output.

         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
             "foo" then...

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GNU Development Tools                                    STRIP(1)

         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 executable.

         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

         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 removed.

         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

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GNU Development Tools                                    STRIP(1)

         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

     See attributes(5) for descriptions of the following

     |Availability   | developer/gnu-binutils |
     |Stability      | Uncommitted            |
     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, 2010, 2011, 2012 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".

     This software was built from source available at  The original
     community source was downloaded from

     Further information about this software can be found on the
     open source community website at

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