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MAN page from RedHat EL 6 toolchain-armiwmmx-2012-2012.12.1-oselas.2.2.x86_64.rpm

READELF

Section: GNU Development Tools (1)
Updated: 2017-09-21
Index 

NAME

readelf - Displays information about ELF files. 

SYNOPSIS

readelf [-a|--all]
        [-h|--file-header]
        [-l|--program-headers|--segments]
        [-S|--section-headers|--sections]
        [-g|--section-groups]
        [-t|--section-details]
        [-e|--headers]
        [-s|--syms|--symbols]
        [--dyn-syms]
        [-n|--notes]
        [-r|--relocs]
        [-u|--unwind]
        [-d|--dynamic]
        [-V|--version-info]
        [-A|--arch-specific]
        [-D|--use-dynamic]
        [-x <number or name>|--hex-dump=<number or name>]
        [-p <number or name>|--string-dump=<number or name>]
        [-R <number or name>|--relocated-dump=<number or name>]
        [-c|--archive-index]
        [-w[lLiaprmfFsoRt]|
         --debug-dump[=rawline,=decodedline,=info,=abbrev,=pubnames,=aranges,=macro,=frames,=frames-interp,=str,=loc,=Ranges,=pubtypes,=trace_info,=trace_abbrev,=trace_aranges,=gdb_index]]
        [-I|--histogram]
        [-v|--version]
        [-W|--wide]
        [-H|--help]
        elffile... 

DESCRIPTION

readelf displays information about one or more ELF format objectfiles. The options control what particular information to display.

elffile... are the object files to be examined. 32-bit and64-bit ELF files are supported, as are archives containing ELF files.

This program performs a similar function to objdump but itgoes into more detail and it exists independently of the BFDlibrary, so if there is a bug in BFD then readelf will not beaffected. 

OPTIONS

The long and short forms of options, shown here as alternatives, areequivalent. At least one option besides -v or -H must begiven.
-a
--all
Equivalent to specifying --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 thefile.
-l
--program-headers
--segments
Displays the information contained in the file's segment headers, if ithas any.
-S
--sections
--section-headers
Displays the information contained in the file's section headers, if ithas any.
-g
--section-groups
Displays the information contained in the file's section groups, if ithas any.
-t
--section-details
Displays the detailed section information. Implies -S.
-s
--symbols
--syms
Displays the entries in symbol table section of the file, if it has one.
--dyn-syms
Displays the entries in dynamic symbol table section of the file, if ithas one.
-e
--headers
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. Onlythe unwind sections for IA64 ELF files, as well as ARM unwind tables(".ARM.exidx" / ".ARM.extab") 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 theyexist.
-A
--arch-specific
Displays architecture-specific information in the file, if thereis any.
-D
--use-dynamic
When displaying symbols, this option makes readelf use thesymbol hash tables in the file's dynamic section, rather than thesymbol table sections.
-x <number or name>
--hex-dump=<number or name>
Displays the contents of the indicated section as a hexadecimal bytes.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.
-R <number or name>
--relocated-dump=<number or name>
Displays the contents of the indicated section as a hexadecimalbytes. A number identifies a particular section by index in thesection table; any other string identifies all sections with that namein the object file. The contents of the section will be relocatedbefore they are displayed.
-p <number or name>
--string-dump=<number or name>
Displays the contents of the indicated section as printable strings.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.
-c
--archive-index
Displays the file symbol index infomation contained in the header partof binary archives. Performs the same function as the tcommand to ar, but without using the BFD library.
-w[lLiaprmfFsoRt]
--debug-dump[=rawline,=decodedline,=info,=abbrev,=pubnames,=aranges,=macro,=frames,=frames-interp,=str,=loc,=Ranges,=pubtypes,=trace_info,=trace_abbrev,=trace_aranges,=gdb_index]
Displays the contents of the debug sections in the file, if any arepresent. If one of the optional letters or words follows the switchthen only data found in those specific sections will be dumped.

Note that there is no single letter option to display the content oftrace sections or .gdb_index.

Note: the =decodedline option will display the interpretedcontents of a .debug_line section whereas the =rawline optiondumps the contents in a raw format.

Note: the =frames-interp option will display the interpretedcontents of a .debug_frame section whereas the =frames optiondumps the contents in a raw format.

-I
--histogram
Display a histogram of bucket list lengths when displaying the contentsof the symbol tables.
-v
--version
Display the version number of readelf.
-W
--wide
Don't break output lines to fit into 80 columns. By defaultreadelf breaks section header and segment listing lines for64-bit ELF files, so that they fit into 80 columns. This option causesreadelf to print each section header resp. each segment one asingle line, which is far more readable on terminals wider than 80 columns.
-H
--help
Display the command line options understood by readelf.
@file
Read command-line options from file. The options read areinserted in place of the original @file option. If filedoes not exist, or cannot be read, then the option will be treatedliterally, and not removed.

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

 

SEE ALSO

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

COPYRIGHT

Copyright (c) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010Free Software Foundation, Inc.

Permission is granted to copy, distribute and/or modify this documentunder the terms of the GNU Free Documentation License, Version 1.3or any later version published by the Free Software Foundation;with no Invariant Sections, with no Front-Cover Texts, and with noBack-Cover Texts. A copy of the license is included in thesection entitled ``GNU Free Documentation License''.


 

Index

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
SEE ALSO
COPYRIGHT

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