strip - Discard symbols from object files.
strip [-F bfdname |--target=bfdname]
 [-I bfdname |--input-target=bfdname]
 [-O bfdname |--output-target=bfdname]
 [-s|--strip-all]
 [-S|-g|-d|--strip-debug]
 [--strip-dwo]
 [-K symbolname|--keep-symbol=symbolname]
 [-M|--merge-notes][--no-merge-notes]
 [-N symbolname |--strip-symbol=symbolname]
 [-w|--wildcard]
 [-x|--discard-all] [-X |--discard-locals]
 [-R sectionname |--remove-section=sectionname]
 [--remove-relocations=sectionpattern]
 [-o file] [-p|--preserve-dates]
 [-D|--enable-deterministic-archives]
 [-U|--disable-deterministic-archives]
 [--keep-file-symbols]
 [--only-keep-debug]
 [-v |--verbose] [-V|--version]
 [--help] [--info]
 objfile...
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
- --target=bfdname
- Treat the original objfile as a file with the object code format
      bfdname, and rewrite it in the same format.
- --help
- Show a summary of the options to strip and exit.
- --info
- Display a list showing all architectures and object formats
    available.
- -I bfdname
- --input-target=bfdname
- Treat the original objfile as a file with the object code format
      bfdname.
- -O bfdname
- --output-target=bfdname
- Replace objfile with a file in the output format
    bfdname.
- -R sectionname
- --remove-section=sectionname
- Remove any section named sectionname from the output file, in
      addition to whatever sections would otherwise be removed. This option may
      be given more than once. Note that using this option inappropriately may
      make the output file unusable. The wildcard character * may be
      given at the end of sectionname. If so, then any section starting
      with sectionname will be removed.
    If the first character of sectionpattern is the
        exclamation point (!) then matching sections will not be removed even if
        an earlier use of --remove-section on the same command line would
        otherwise remove it. For example: 
 
          --remove-section=.text.* --remove-section=!.text.foo
    will remove all sections matching the pattern '.text.*', but
        will not remove the section '.text.foo'. 
- --remove-relocations=sectionpattern
- Remove relocations from the output file for any section matching
      sectionpattern. This option may be given more than once. Note that
      using this option inappropriately may make the output file unusable.
      Wildcard characters are accepted in sectionpattern. For example:
    
 
          --remove-relocations=.text.*
    will remove the relocations for all sections matching the
        patter '.text.*'. If the first character of sectionpattern is the
        exclamation point (!) then matching sections will not have their
        relocation removed even if an earlier use of --remove-relocations
        on the same command line would otherwise cause the relocations to be
        removed. For example: 
 
          --remove-relocations=.text.* --remove-relocations=!.text.foo
    will remove all relocations for sections matching the pattern
        '.text.*', but will not remove relocations for the section
      '.text.foo'. 
- -s
- --strip-all
- Remove all symbols.
- -g
- -S
- -d
- --strip-debug
- Remove debugging symbols only.
- --strip-dwo
- 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.
- --strip-unneeded
- Remove all symbols that are not needed for relocation processing.
- -K symbolname
- --keep-symbol=symbolname
- When stripping symbols, keep symbol symbolname even if it would
      normally be stripped. This option may be given more than once.
- -M
- --merge-notes
- --no-merge-notes
- For ELF files, attempt (or do not attempt) to reduce the size of any
      SHT_NOTE type sections by removing duplicate notes. The default is to
      attempt this reduction.
- -N symbolname
- --strip-symbol=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.
- -p
- --preserve-dates
- Preserve the access and modification dates of the file.
- -D
- --enable-deterministic-archives
- 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.
    If binutils was configured with
        --enable-deterministic-archives, then this mode is on by default.
        It can be disabled with the -U option, below. 
- -U
- --disable-deterministic-archives
- Do not operate in deterministic mode. This is the inverse of
      the -D option, above: when copying archive members and writing the
      archive index, use their actual UID, GID, timestamp, and file mode values.
    This is the default unless binutils was configured with
        --enable-deterministic-archives. 
- -w
- --wildcard
- 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". 
- -x
- --discard-all
- Remove non-global symbols.
- -X
- --discard-locals
- Remove compiler-generated local symbols. (These usually start with
      L or ..)
- --keep-file-symbols
- When stripping a file, perhaps with --strip-debug or
      --strip-unneeded, retain any symbols specifying source file names,
      which would otherwise get stripped.
- --only-keep-debug
- Strip a file, emptying the contents of any sections that would not be
      stripped by --strip-debug and leaving the debugging sections
      intact. In ELF files, this preserves all the note sections in the output
      as well.
    Note - the section headers of the stripped sections are
        preserved, including their sizes, but the contents of the section are
        discarded. The section headers are preserved so that other tools can
        match up the debuginfo file with the real executable, even if that
        executable has been relocated to a different address space. 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 it 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 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.
 
  - -V
- --version
- Show the version number for strip.
- -v
- --verbose
- Verbose output: list all object files modified. In the case of archives,
      strip -v lists all members of the archive.
- @file
- 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 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) 1991-2018 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".