Skip site navigation (1)Skip section navigation (2)

FreeBSD Man Pages

Man Page or Keyword Search:
Man Architecture
Apropos Keyword Search (all sections) Output format
home | help
READELF(1)                   GNU Development Tools                  READELF(1)

       readelf - Displays information about ELF files.

       readelf [-a|--all]
               [-x <number or name>|--hex-dump=<number or name>]


       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.

           Equivalent to specifying --file-header, --program-headers,
           --sections, --symbols, --relocs, --dynamic, --notes and

           Displays the information contained in the ELF header at the start
           of the file.

           Displays the information contained in the file's segment headers,
           if it has any.

           Displays the information contained in the file's section headers,
           if it has any.

           Displays the information contained in the file's section groups, if
           it has any.

           Displays the detailed section information. Implies -S.

           Displays the entries in symbol table section of the file, if it has

           Display all the headers in the file.  Equivalent to -h -l -S.

           Displays the contents of the NOTE segments and/or sections, if any.

           Displays the contents of the file's relocation section, if it has

           Displays the contents of the file's unwind section, if it has one.
           Only the unwind sections for IA64 ELF files are currently

           Displays the contents of the file's dynamic section, if it has one.

           Displays the contents of the version sections in the file, it they

           Displays architecture-specific information in the file, if there is

           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 or name>
       --hex-dump=<number or name>
           Displays the contents of the indicated section as a hexadecimal
           dump.  A number identifies a particular section by index in the
           section table; any other string identifies all sections with that
           name in the object file.

           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

           Display a histogram of bucket list lengths when displaying the
           contents of the symbol tables.

           Display the version number of readelf.

           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.

           Display the command line options understood by readelf.

           Read command-line options from file.  The options read are inserted
           in place of the original @file option.  If file does not exist, or
           cannot be read, then the option will be treated literally, and not

           Options in file are separated by whitespace.  A whitespace
           character may be included in an option by surrounding the entire
           option in either single or double quotes.  Any character (including
           a backslash) may be included by prefixing the character to be
           included with a backslash.  The file may itself contain additional
           @file options; any such options will be processed recursively.

       objdump(1), and the Info entries for binutils.

       Copyright (c) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
       2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 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".

binutils-2.17.50                  2010-10-30                        READELF(1)


Want to link to this manual page? Use this URL:

home | help