1.\" Copyright (c) 2003 David O'Brien 2.\" All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 13.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 17.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23.\" SUCH DAMAGE. 24.\" 25.\" $FreeBSD: src/usr.bin/elfdump/elfdump.1,v 1.6 2005/01/18 13:43:48 ru Exp $ 26.\" $Id: elfdump.1 3231 2015-07-30 13:47:56Z emaste $ 27.\" 28.Dd August 25, 2011 29.Dt ELFDUMP 1 30.Os 31.Sh NAME 32.Nm elfdump 33.Nd "display information about" 34.Tn ELF 35files 36.Sh SYNOPSIS 37.Nm 38.Fl a | cdeGhiknprsv 39.Op Fl S 40.Op Fl V 41.Op Fl N Ar name 42.Op Fl w Ar file 43.Ar file ... 44.Sh DESCRIPTION 45The 46.Nm 47utility 48dumps various information about the specified 49.Tn ELF 50.Ar file . 51.Pp 52The options are as follows: 53.Bl -tag -width ".Fl w Ar file" 54.It Fl a 55Dump all information. 56.It Fl c 57Dump section headers. 58.It Fl d 59Dump dynamic symbols. 60.It Fl e 61Dump ELF header. 62.It Fl G 63Dump the GOT. 64.It Fl h 65Dump the hash values. 66.It Fl i 67Dump the dynamic interpreter. 68.It Fl k 69Dump the ELF checksum. 70.It Fl n 71Dump note sections. 72.It Fl N Ar name 73Only dump the section with the specific 74.Ar name . 75Archive symbol table can be specified with 76the special section name ARSYM. 77More than one 78.Fl N 79option may appear. 80.It Fl p 81Dump the program header. 82.It Fl r 83Dump relocations. 84.It Fl s 85Dump the symbol table. 86.It Fl S 87Output in the Solaris 88.Nm 89format. 90.It Fl v 91Dump the symbol-versioning sections. 92.It Fl V 93Print a version identifier and exit. 94.It Fl w Ar file 95Write output to a 96.Ar file 97instead of the standard output. 98.El 99.Sh EXIT STATUS 100.Ex -std 101.Sh EXAMPLES 102The following is an example of a typical usage 103of the 104.Nm 105command: 106.Pp 107.Dl "elfdump -a -w output /bin/ls" 108.Pp 109To dump the content of '.dynsym' symbol table: 110.Pp 111.Dl "elfdump -s -N .dynsym /bin/ls" 112.Pp 113To dump the archive symbol table, 114but not the symbol tables of archive members: 115.Pp 116.Dl "elfdump -s -N ARSYM /usr/lib/libelf.a" 117.Pp 118To dump the content of .got section and 119the symbol-versioning sections in Solaris 120.Nm 121format: 122.Pp 123.Dl "elfdump -S -Gv /bin/ls" 124.Sh SEE ALSO 125.Xr objdump 1 , 126.Xr readelf 1 , 127.Xr elf 3 128.Rs 129.%A "AT&T Unix Systems Labs" 130.%T "System V Application Binary Interface" 131.%O http://www.sco.com/developers/gabi/ 132.Re 133.Sh HISTORY 134The 135.Nm 136utility first appeared in 137.Fx 5.0 . 138.Sh AUTHORS 139.An -nosplit 140The 141.Nm 142utility 143was written by 144.An Jake Burkholder Aq Mt jake@FreeBSD.org . 145Later it was rewritten based on the 146libelf library. 147This 148manual page was written by 149.An David O'Brien Aq Mt obrien@FreeBSD.org . 150.Pp 151.An Kai Wang Aq Mt kaiw@FreeBSD.org 152rewrote it using the 153.Lb libelf 154and implemented additional functionality. 155.Sh BUGS 156Does not fully implement the 157.Tn ELF 158gABI. 159