STRIP(1) BSD General Commands Manual STRIP(1)NAME
strip -- discard information from ELF objects
SYNOPSIS
strip [-d | -g | -S | --strip-debug] [-h | --help] [--only-keep-debug] [-o outputfile | --output-file=outputfile] [-p | --preserve-dates]
[-s | --strip-all] [--strip-unneeded] [-w | --wildcard] [-x | --discard-all] [-I format | --input-target=format]
[-K symbol | --keep-symbol=symbol] [-N symbol | --strip-symbol=symbol] [-O format | --output-target=format]
[-R sectionname | --remove-section=sectionname] [-V | --version] [-X | --discard-locals] file ...
DESCRIPTION
The strip utility is used to discard information from ELF objects.
The strip utility supports the following options:
-d | -g | -S | --strip-debug
Remove debugging symbols only.
-h | --help
Print a help message and exit.
--only-keep-debug
Remove all content except that which would be used for debugging.
-o outputfile | --output-file=outputfile
Write the stripped object to file outputfile. The default behaviour is to modify objects in place.
-p | --preserve-dates
Preserve the object's access and modification times.
-s | --strip-all
Remove all symbols.
--strip-unneeded
Remove all symbols not needed for further relocation processing.
-w | --wildcard
Use shell-style patterns to name symbols. The following meta-characters are recognized in patterns:
! If this is the first character of the pattern, invert the sense of the pattern match.
* Matches any string of characters in a symbol name.
? Matches zero or one character in a symbol name.
[ Mark the start of a character class.
Remove the special meaning of the next character in the pattern.
] Mark the end of a character class.
-x | --discard-all
Discard all non-global symbols.
-I format | --input-target=format
These options are accepted, but are ignored.
-K symbol | --keep-symbol=symbol
Keep the symbol symbol even if it would otherwise be stripped. This option may be specified multiple times.
-N symbol | --strip-symbol=symbol
Remove the symbol symbol even if it would otherwise have been kept. This option may be specified multiple times.
-O format | --output-target=format
Set the output file format to format. For the full list of supported formats, please see the documentation for function
elftc_bfd_find_target(3).
-R sectionname | --remove-section=sectionname
Remove the section named by the argument sectionname. This option may be specified multiple times.
-V | --version
Print a version identifier and exit.
-X | --discard-locals
Remove compiler-generated local symbols.
DIAGNOSTICS
The strip utility exits 0 on success, and >0 if an error occurs.
SEE ALSO ar(1), elfcopy(1), ld(1), mcs(1), elf(3), elftc_bfd_find_target(3), fnmatch(3)BSD September 17, 2011 BSD
Check Out this Related Man Page
STRIP(1) GNU Development Tools STRIP(1)NAME
strip - Discard symbols from object files.
SYNOPSIS
strip [-F bfdname |--target=bfdname]
[-I bfdname |--input-target=bfdname]
[-O bfdname |--output-target=bfdname]
[-s|--strip-all]
[-S|-g|-d|--strip-debug]
[-K symbolname |--keep-symbol=symbolname]
[-N symbolname |--strip-symbol=symbolname]
[-w|--wildcard]
[-x|--discard-all] [-X |--discard-locals]
[-R sectionname |--remove-section=sectionname]
[-o file] [-p|--preserve-dates]
[--keep-file-symbols]
[--only-keep-debug]
[-v |--verbose] [-V|--version]
[--help] [--info]
objfile...
DESCRIPTION
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.
OPTIONS -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. This option may be given more than once. Note that using this option
inappropriately may make the output file unusable.
-s
--strip-all
Remove all symbols.
-g
-S
-d
--strip-debug
Remove debugging symbols only.
--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.
-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.
-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, 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 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.
SEE ALSO
the Info entries for binutils.
COPYRIGHT
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)