xref: /freebsd/contrib/elftoolchain/elfdump/elfdump.1 (revision 11d38a5764295585a2472d5e861fa8abe1a11eb2)

.\" Copyright (c) 2003 David O'Brien
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.\" $FreeBSD: src/usr.bin/elfdump/elfdump.1,v 1.6 2005/01/18 13:43:48 ru Exp $
.\" $Id: elfdump.1 3231 2015-07-30 13:47:56Z emaste $
.\"
.Dd August 25, 2011
.Dt ELFDUMP 1
.Os
.Sh NAME
.Nm elfdump
.Nd "display information about"
.Tn ELF
files
.Sh SYNOPSIS
.Nm
.Fl a | cdeGhiknprsv
.Op Fl S
.Op Fl V
.Op Fl N Ar name
.Op Fl w Ar file
.Ar file ...
.Sh DESCRIPTION
The
.Nm
utility
dumps various information about the specified
.Tn ELF
.Ar file .
.Pp
The options are as follows:
.Bl -tag -width ".Fl w Ar file"
.It Fl a
Dump all information.
.It Fl c
Dump section headers.
.It Fl d
Dump dynamic symbols.
.It Fl e
Dump ELF header.
.It Fl G
Dump the GOT.
.It Fl h
Dump the hash values.
.It Fl i
Dump the dynamic interpreter.
.It Fl k
Dump the ELF checksum.
.It Fl n
Dump note sections.
.It Fl N Ar name
Only dump the section with the specific
.Ar name .
Archive symbol table can be specified with
the special section name ARSYM.
More than one
.Fl N
option may appear.
.It Fl p
Dump the program header.
.It Fl r
Dump relocations.
.It Fl s
Dump the symbol table.
.It Fl S
Output in the Solaris
.Nm
format.
.It Fl v
Dump the symbol-versioning sections.
.It Fl V
Print a version identifier and exit.
.It Fl w Ar file
Write output to a
.Ar file
instead of the standard output.
.El
.Sh EXIT STATUS
.Ex -std
.Sh EXAMPLES
The following is an example of a typical usage
of the
.Nm
command:
.Pp
.Dl "elfdump -a -w output /bin/ls"
.Pp
To dump the content of '.dynsym' symbol table:
.Pp
.Dl "elfdump -s -N .dynsym /bin/ls"
.Pp
To dump the archive symbol table,
but not the symbol tables of archive members:
.Pp
.Dl "elfdump -s -N ARSYM /usr/lib/libelf.a"
.Pp
To dump the content of .got section and
the symbol-versioning sections in Solaris
.Nm
format:
.Pp
.Dl "elfdump -S -Gv /bin/ls"
.Sh SEE ALSO
.Xr objdump 1 ,
.Xr readelf 1 ,
.Xr elf 3
.Rs
.%A "AT&T Unix Systems Labs"
.%T "System V Application Binary Interface"
.%O http://www.sco.com/developers/gabi/
.Re
.Sh HISTORY
The
.Nm
utility first appeared in
.Fx 5.0 .
.Sh AUTHORS
.An -nosplit
The
.Nm
utility
was written by
.An Jake Burkholder Aq Mt jake@FreeBSD.org .
Later it was rewritten based on the
libelf library.
This
manual page was written by
.An David O'Brien Aq Mt obrien@FreeBSD.org .
.Pp
.An Kai Wang Aq Mt kaiw@FreeBSD.org
rewrote it using the
.Lb libelf
and implemented additional functionality.
.Sh BUGS
Does not fully implement the
.Tn ELF
gABI.