NAME
readelf - Displays information about
ELF files.
SYNOPSIS
readelf [
-aï ­­all]
[
-hï ­­file­header]
[
-lï ­­program­headersï ­­segments]
[
-Sï ­­section­headersï ­­sections]
[
-eï ­­headers]
[
-sï ­­symsï ­­symbols]
[
-nï ­­notes]
[
-rï ­­relocs]
[
-dï ­­dynamic]
[
-Vï ­­version­info]
[
-Dï ­­use­dynamic]
[
-x <number>ï ­­hex­dump=<number>]
[
-w[liaprf]ï ­­debug­dump[=info,=line,=abbrev,=pubnames,=ranges,=frames]]
[
­­histogram]
[
-vï ­­version]
[
-Hï ­­help]
elffile
...
DESCRIPTION
readelf
displays information about one or more ELF format object files. The options control
what particular information to display.
elffile
... are the object files to be examined. At the moment, readelf does not support
examining archives, nor does it support examing 64 bit
ELF files.
OPTIONS
The long and short forms of options, shown here as alternatives, are equivalent. At least one
option besides
-v or -H must be given.
-a
­­all
Equivalent to specifiying
­­file­header, ­­program­headers, ­­sections, ­­symbols,
­­relocs
, ­­dynamic, ­­notes and ­­version­info.
-h
­­file­header
Displays the information contained in the
ELF header at the start of the file.
-l
­­program­headers
­­segments
Displays the information contained in the file's segment headers, if it has any.
-S
­­sections
­­section­headers
Displays the information contained in the file's section headers, if it has any.
-s
­­symbols
­­syms
Displays the entries in symbol table section of the file, if it has one.
-e
­­headers
Display all the headers in the file. Equivalent to
-h -l -S.
-n
­­notes
Displays the contents of the
NOTE segment, if it exists.
-r
­­relocs
Displays the contents of the file's relocation section, if it has one.


-d
­­dynamic
Displays the contents of the file's dynamic section, if it has one.
-V
­­version­info
Displays the contents of the version sections in the file, it they exist.
-D
­­use­dynamic
When displaying symbols, this option makes
readelf use the symbol table in the file's
dynamic section, rather than the one in the symbols section.
-x <number>
­­hex­dump=<number>
Displays the contents of the indicated section as a hexadecimal dump.
-w[liaprf]
­­debug­dump[=line,=info,=abbrev,=pubnames,=ranges,=frames]
Displays the contents of the debug sections in the file, if any are present. If one of the
optional letters or words follows the switch then only data found in those specific sections
will be dumped.
­­histogram
Display a histogram of bucket list lengths when displaying the contents of the symbol
tables.
-v
­­version
Display the version number of readelf.
-H
­­help
Display the command line options understood by
readelf.
SEE ALSO
objdump
(1), and the Info entries for binutils.
COPYRIGHT
Copyright (c) 1991, 92, 93, 94, 95, 96, 97, 98, 99, 2000, 2001 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 1.1 or any later version published by the Free
Software Foundation; with no Invariant Sections, with no Front­Cover Texts, and with no
Back­Cover Texts. A copy of the license is included in the section entitled ``
GNU Free
Documentation License''.