readelf - Displays information about ELF files.
readelf [-a⎪--all]
[-h⎪--file-header]
[-l⎪--program-headers⎪--segments]
[-S⎪--section-headers⎪--sections]
[-g⎪--section-groups]
[-e⎪--headers]
[-s⎪--syms⎪--symbols]
[-n⎪--notes]
[-r⎪--relocs]
[-u⎪--unwind]
[-d⎪--dynamic]
[-V⎪--version-info]
[-A⎪--arch-specific]
[-D⎪--use-dynamic]
[-x <number>⎪--hex-dump=<number>]
[-w[liaprmfFsoR]⎪
--debug-dump[=line,=info,=abbrev,=pubnames,=aranges,=macro,=frames,=frames-interp,=str,=loc,=Ranges]]
[-I⎪-histogram]
[-v⎪--version]
[-W⎪--wide]
[-H⎪--help]
elffile...
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. 32-bit and
64-bit ELF files are supported, as are archives containing ELF files.
This program performs a similar function to objdump but it
goes into more detail and it exists independently of the BFD library, so if
there is a bug in BFD then readelf will not be affected.
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 --file-header, --program-headers,
--sections, --symbols, --relocs, --dynamic,
--notes and --version-info.
- -h
- --file-header
- Displays the information contained in the ELF header at the start of the
file.
- -l
- --program-headers
- --segments
- Displays the information contained in the file's segment headers, if it
has any.
- -S
- --sections
- --section-headers
- Displays the information contained in the file's section headers, if it
has any.
- -g
- --section-groups
- Displays the information contained in the file's section groups, if it has
any.
- -s
- --symbols
- --syms
- Displays the entries in symbol table section of the file, if it has
one.
- -e
- Display all the headers in the file. Equivalent to -h -l -S.
- -n
- --notes
- Displays the contents of the NOTE segments and/or sections, if any.
- -r
- --relocs
- Displays the contents of the file's relocation section, if it has
one.
- -u
- --unwind
- Displays the contents of the file's unwind section, if it has one. Only
the unwind sections for IA64 ELF files are currently supported.
- -d
- --dynamic
- Displays the contents of the file's dynamic section, if it has one.
- -V
- --version-info
- Displays the contents of the version sections in the file, it they
exist.
- -A
- --arch-specific
- Displays architecture-specific information in the file, if there is
any.
- -D
- --use-dynamic
- 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>
- --hex-dump=<number>
- Displays the contents of the indicated section as a hexadecimal dump.
- -w[liaprmfFsoR]
- --debug-dump[=line,=info,=abbrev,=pubnames,=aranges,=macro,=frames,=frames-interp,=str,=loc,=Ranges]
- 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.
- -I
- --histogram
- Display a histogram of bucket list lengths when displaying the contents of
the symbol tables.
- -v
- --version
- Display the version number of readelf.
- -W
- --wide
- Don't break output lines to fit into 80 columns. By default readelf
breaks section header and segment listing lines for 64-bit ELF files, so
that they fit into 80 columns. This option causes readelf to print
each section header resp. each segment one a single line, which is far
more readable on terminals wider than 80 columns.
- -H
- --help
- Display the command line options understood by readelf.
Copyright (c) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
1999, 2000, 2001, 2002, 2003, 2004 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 Front-Cover Texts, and with no Back-Cover Texts.
A copy of the license is included in the section entitled ``GNU Free
Documentation License''.