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''.