d003e0d7fe
This contains many small bugfixes and documentation improvements. Sponsored by: The FreeBSD Foundation
200 lines
6.0 KiB
Groff
200 lines
6.0 KiB
Groff
.\" Copyright (c) 2009,2011 Joseph Koshy <jkoshy@users.sourceforge.net>
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.\" 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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.\" in this position and unchanged.
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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 THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
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.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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.\"
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.\" $Id: readelf.1 3753 2019-06-28 01:13:13Z emaste $
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.\"
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.Dd June 27, 2019
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.Dt READELF 1
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.Os
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.Sh NAME
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.Nm readelf
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.Nd display information about ELF objects
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.Sh SYNOPSIS
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.Nm
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.Op Fl a | Fl -all
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.Op Fl c | Fl -archive-index
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.Op Fl d | Fl -dynamic
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.Op Fl e | Fl -headers
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.Op Fl g | Fl -section-groups
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.Op Fl h | Fl -file-header
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.Op Fl l | Fl -program-headers
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.Op Fl n | Fl -notes
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.Op Fl p Ar section | Fl -string-dump Ns = Ns Ar section
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.Op Fl r | Fl -relocs
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.Op Fl t | Fl -section-details
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.Op Fl v | Fl -version
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.Oo
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.Fl w Ns Oo Ns Ar afilmoprsFLR Ns Oc |
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.Fl -debug-dump Ns Op Ns = Ns Ar long-option-name , Ns ...
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.Oc
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.Op Fl x Ar section | Fl -hex-dump Ns = Ns Ar section
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.Op Fl A | Fl -arch-specific
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.Op Fl D | Fl -use-dynamic
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.Op Fl H | Fl -help
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.Op Fl I | Fl -histogram
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.Op Fl N | -full-section-name
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.Op Fl S | Fl -sections | Fl -section-headers
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.Op Fl V | Fl -version-info
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.Op Fl W | Fl -wide
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.Ar file...
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.Sh DESCRIPTION
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The
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.Nm
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utility displays information about ELF objects and
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.Xr ar 1
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archives.
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.Pp
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The
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.Nm
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utility recognizes the following options:
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.Bl -tag -width indent
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.It Fl a | Fl -all
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Turn on the following flags:
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.Fl d ,
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.Fl h ,
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.Fl I ,
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.Fl l ,
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.Fl r ,
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.Fl s ,
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.Fl A ,
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.Fl S
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and
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.Fl V .
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.It Fl c | Fl -archive-index
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Print the archive symbol table for archives.
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.It Fl d | Fl -dynamic
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Print the contents of the
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.Li SHT_DYNAMIC
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sections in the ELF object.
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.It Fl e | Fl -headers
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Print all program, file and section headers in the ELF object.
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.It Fl g | Fl -section-groups
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Print the contents of the section groups in the ELF object.
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.It Fl h | Fl -file-header
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Print the file header of the ELF object.
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.It Fl l | Fl -program-headers
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Print the content of the program header table for the object.
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.It Fl n | Fl -notes
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Print the contents of
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.Li PT_NOTE
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segments or
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.Li SHT_NOTE
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sections present in the ELF object.
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.It Fl p Ar section | Fl -string-dump Ns = Ns Ar section
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Print the contents of the specified section as printable strings.
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The argument
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.Ar section
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should be the name of a section or a numeric section index.
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.It Fl r | Fl -relocs
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Print relocation information.
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.It Fl s | Fl -syms | Fl -symbols
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Print symbol tables.
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.It Fl t | Fl -section-details
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Print additional information about sections, such as the flags
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fields in section headers.
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Implies
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.Fl S .
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.It Fl v | Fl -version
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Prints a version identifier for
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.Nm
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and exits.
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.It Fl w Ns Oo afilmoprsFLR Oc | Xo
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.Fl -debug-dump Ns Op Ns = Ns Ar long-option-name , Ns ...
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.Xc
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Display DWARF information.
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The
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.Fl w
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option is used with the short options in the following
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table; the
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.Fl -debug-dump
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option is used with a comma-separated list of the corresponding long
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option names:
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.Bl -column ".Em Short Option" "aranges|ranges"
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.It Em Short Option Ta Em Long Option Ta Em Description
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.It a Ta abbrev Ta Show abbreviation information.
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.It f Ta frames Ta Show frame information, displaying frame instructions.
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.It i Ta info Ta Show debugging information entries.
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.It l Ta rawline Ta Show line information in raw form.
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.It m Ta macro Ta Show macro information.
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.It o Ta loc Ta Show location list information.
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.It p Ta pubnames Ta Show global names.
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.It r Ta aranges|ranges Ta Show address range information.
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.It s Ta str Ta Show the debug string table.
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.It F Ta frames-interp Ta Show frame information, displaying register rules.
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.It L Ta decodedline Ta Show line information in decoded form.
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.It R Ta Ranges Ta Show range lists.
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.El
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.Pp
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If no sub-options are specified, the default is to show information
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corresponding to the
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.Ar a , f , i, l , o , p , r , s
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and
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.Ar R
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short options.
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.It Fl x Ar section | Fl -hex-dump Ns = Ns Ar section
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Display the contents of the specified section in hexadecimal.
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The argument
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.Ar section
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should be the name of a section or a numeric section index.
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.It Fl A | Fl -arch-specific
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This option is accepted but is currently unimplemented.
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.It Fl D | Fl -use-dynamic
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Print the symbol table specified by the
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.Li DT_SYMTAB
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entry in the
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.Dq Li .dynamic
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section.
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.It Fl H | Fl -help
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Print a help message.
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.It Fl I | Fl -histogram
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Print information on bucket list lengths for sections of type
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.Li SHT_HASH
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and
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.Li SHT_GNU_HASH .
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.It Fl N | Fl -full-section-name
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This option is accepted but is currently unimplemented.
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.It Fl S | Fl -sections | Fl -section-headers
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Print information in the section headers for each ELF object.
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.It Fl V | Fl -version-info
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Print symbol versioning information.
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.It Fl W | Fl -wide
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Print information about ELF structures using one long line per
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structure.
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If this option is not specified,
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.Nm
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will list information in the headers of 64 bit ELF objects on two
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separate lines.
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.El
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.Sh EXIT STATUS
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.Ex -std
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.Sh SEE ALSO
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.Xr nm 1 ,
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.Xr addr2line 1 ,
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.Xr elfcopy 1 ,
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.Sh AUTHORS
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The
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.Nm
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utility was written by
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.An Kai Wang Aq Mt kaiwang27@users.sourceforge.net .
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