133 lines
4.4 KiB
Groff
133 lines
4.4 KiB
Groff
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.\" Copyright (c) 2011 Joseph Koshy. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY JOSEPH KOSHY ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL JOSEPH KOSHY BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" $Id: strip.1 2069 2011-10-26 15:53:48Z jkoshy $
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.\"
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.Dd September 17, 2011
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.Os
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.Dt STRIP 1
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.Sh NAME
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.Nm strip
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.Nd discard information from ELF objects
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.Sh SYNOPSIS
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.Nm
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.Op Fl d | Fl g | Fl S | Fl -strip-debug
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.Op Fl h | Fl -help
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.Op Fl -only-keep-debug
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.Op Fl o Ar outputfile | Fl -output-file= Ns Ar outputfile
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.Op Fl p | Fl -preserve-dates
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.Op Fl s | Fl -strip-all
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.Op Fl -strip-unneeded
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.Op Fl w | Fl -wildcard
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.Op Fl x | Fl -discard-all
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.Op Fl I Ar format | Fl -input-target= Ns Ar format
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.Op Fl K Ar symbol | Fl -keep-symbol= Ns Ar symbol
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.Op Fl N Ar symbol | Fl -strip-symbol= Ns Ar symbol
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.Op Fl O Ar format | Fl -output-target= Ns Ar format
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.Op Fl R Ar sectionname | Fl -remove-section= Ns Ar sectionname
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.Op Fl V | Fl -version
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.Op Fl X | Fl -discard-locals
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.Ar
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.Sh DESCRIPTION
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The
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.Nm
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utility is used to discard information from ELF objects.
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.Pp
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The
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.Nm
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utility supports the following options:
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.Bl -tag -width indent
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.It Fl d | Fl g | Fl S | Fl -strip-debug
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Remove debugging symbols only.
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.It Fl h | Fl -help
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Print a help message and exit.
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.It Fl -only-keep-debug
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Remove all content except that which would be used for debugging.
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.It Fl o Ar outputfile | Fl -output-file= Ns Ar outputfile
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Write the stripped object to file
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.Ar outputfile .
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The default behaviour is to modify objects in place.
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.It Fl p | Fl -preserve-dates
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Preserve the object's access and modification times.
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.It Fl s | Fl -strip-all
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Remove all symbols.
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.It Fl -strip-unneeded
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Remove all symbols not needed for further relocation processing.
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.It Fl w | Fl -wildcard
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Use shell-style patterns to name symbols.
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The following meta-characters are recognized in patterns:
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.Bl -tag -width "...." -compact
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.It Li !
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If this is the first character of the pattern, invert the sense of the
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pattern match.
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.It Li *
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Matches any string of characters in a symbol name.
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.It Li ?
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Matches zero or one character in a symbol name.
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.It Li [
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Mark the start of a character class.
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.It Li \e
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Remove the special meaning of the next character in the pattern.
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.It Li ]
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Mark the end of a character class.
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.El
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.It Fl x | Fl -discard-all
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Discard all non-global symbols.
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.It Fl I Ar format | Fl -input-target= Ns Ar format
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These options are accepted, but are ignored.
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.It Fl K Ar symbol | Fl -keep-symbol= Ns Ar symbol
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Keep the symbol
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.Ar symbol
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even if it would otherwise be stripped.
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This option may be specified multiple times.
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.It Fl N Ar symbol | Fl -strip-symbol= Ns Ar symbol
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Remove the symbol
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.Ar symbol
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even if it would otherwise have been kept.
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This option may be specified multiple times.
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.It Fl O Ar format | Fl -output-target= Ns Ar format
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Set the output file format to
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.Ar format .
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For the full list of supported formats, please see the documentation
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for function
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.Xr elftc_bfd_find_target 3 .
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.It Fl R Ar sectionname | Fl -remove-section= Ns Ar sectionname
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Remove the section named by the argument
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.Ar sectionname .
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This option may be specified multiple times.
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.It Fl V | Fl -version
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Print a version identifier and exit.
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.It Fl X | Fl -discard-locals
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Remove compiler-generated local symbols.
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.El
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.Sh DIAGNOSTICS
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.Ex -std
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.Sh SEE ALSO
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.Xr ar 1 ,
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.Xr elfcopy 1 ,
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.Xr ld 1 ,
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.Xr mcs 1 ,
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.Xr elf 3 ,
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.Xr elftc_bfd_find_target 3 ,
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.Xr fnmatch 3
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