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READELF(1)                   GNU Development ToolsREADELF(1)NAME       readelf - display information about ELF filesSYNOPSIS       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>]               [-z|--decompress]               [-c|--archive-index]               [-w[lLiaprmfFsoRtUuTgAckK]|                --debug-dump[=rawline,=decodedline,=info,=abbrev,=pubnames,=aranges,=macro,=frames,=frames-interp,=str,=loc,=Ranges,=pubtypes,=trace_info,=trace_abbrev,=trace_aranges,=gdb_index,=addr,=cu_index,=links,=follow-links]]               [--dwarf-depth=n]               [--dwarf-start=n]               [--ctf=section]               [--ctf-parent=section]               [--ctf-symbols=section]               [--ctf-strings=section]               [-I|--histogram]               [-v|--version]               [-W|--wide]               [-H|--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.  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.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 specifying --file-header, --program-headers,           --sections, --symbols, --relocs, --dynamic, --notes,           --version-info, --arch-specific, --unwind, --section-groups and           --histogram.           Note - this option does not enable --use-dynamic itself, so if that           option is not present on the command line then dynamic symbols and           dynamic relocs will not be displayed.       -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.       -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.  If a symbol has version information associated with it then           this is displayed as well.  The version string is displayed as a           suffix to the symbol name, preceeded by an @ character.  For           example foo@VER_1.  If the version is the default version to be           used when resolving unversioned references to the symbol then it is           displayed as a suffix preceeded by two @ characters.  For example           foo@@VER_2.       --dyn-syms           Displays the entries in dynamic symbol table section of the file,           if it has one.  The output format is the same as the format used by           the --syms option.       -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.           Only the unwind sections for IA64 ELF files, as well as ARM unwind           tables (".ARM.exidx" / ".ARM.extab") are currently supported.  If           support is not yet implemented for your architecture you could try           dumping the contents of the .eh_frames section using the           --debug-dump=frames or --debug-dump=frames-interp options.       -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           hash tables in the file's dynamic section, rather than the symbol           table sections.           When displaying relocations, this option makes readelf display the           dynamic relocations rather than the static relocations.       -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 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.  The contents of the section will be           relocated before 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.       -z       --decompress           Requests that the section(s) being dumped by x, R or p options are           decompressed before being displayed.  If the section(s) are not           compressed then they are displayed as is.       -c       --archive-index           Displays the file symbol index information contained in the header           part of binary archives.  Performs the same function as the t           command to ar, but without using the BFD library.       -w[lLiaprmfFsoRtUuTgAckK]       --debug-dump[=rawline,=decodedline,=info,=abbrev,=pubnames,=aranges,=macro,=frames,=frames-interp,=str,=loc,=Ranges,=pubtypes,=trace_info,=trace_abbrev,=trace_aranges,=gdb_index,=addr,=cu_index,=links,=follow-links]           Displays the contents of the DWARF debug sections in the file, if           any are present.  Compressed debug sections are automatically           decompressed (temporarily) before they are displayed.  If one or           more of the optional letters or words follows the switch then only           those type(s) of data will be dumped.  The letters and words refer           to the following information:           "a"           "=abbrev"               Displays the contents of the .debug_abbrev section.           "A"           "=addr"               Displays the contents of the .debug_addr section.           "c"           "=cu_index"               Displays the contents of the .debug_cu_index and/or               .debug_tu_index sections.           "f"           "=frames"               Display the raw contents of a .debug_frame section.           "F"           "=frame-interp"               Display the interpreted contents of a .debug_frame section.           "g"           "=gdb_index"               Displays the contents of the .gdb_index and/or .debug_names               sections.           "i"           "=info"               Displays the contents of the .debug_info section.  Note: the               output from this option can also be restricted by the use of               the --dwarf-depth and --dwarf-start options.           "k"           "=links"               Displays the contents of the .gnu_debuglink and/or               .gnu_debugaltlink sections.  Also displays any links to               separate dwarf object files (dwo), if they are specified by the               DW_AT_GNU_dwo_name or DW_AT_dwo_name attributes in the               .debug_info section.           "K"           "=follow-links"               Display the contents of any selected debug sections that are               found in linked, separate debug info file(s).  This can result               in multiple versions of the same debug section being displayed               if it exists in more than one file.               In addition, when displaying DWARF attributes, if a form is               found that references the separate debug info file, then the               referenced contents will also be displayed.           "l"           "=rawline"               Displays the contents of the .debug_line section in a raw               format.           "L"           "=decodedline"               Displays the interpreted contents of the .debug_line section.           "m"           "=macro"               Displays the contents of the .debug_macro and/or .debug_macinfo               sections.           "o"           "=loc"               Displays the contents of the .debug_loc and/or .debug_loclists               sections.           "p"           "=pubnames"               Displays the contents of the .debug_pubnames and/or               .debug_gnu_pubnames sections.           "r"           "=aranges"               Displays the contents of the .debug_aranges section.           "R"           "=Ranges"               Displays the contents of the .debug_ranges and/or               .debug_rnglists sections.           "s"           "=str"               Displays the contents of the .debug_str, .debug_line_str and/or               .debug_str_offsets sections.           "t"           "=pubtype"               Displays the contents of the .debug_pubtypes and/or               .debug_gnu_pubtypes sections.           "T"           "=trace_aranges"               Displays the contents of the .trace_aranges section.           "u"           "=trace_abbrev"               Displays the contents of the .trace_abbrev section.           "U"           "=trace_info"               Displays the contents of the .trace_info section.           Note: displaying the contents of .debug_static_funcs,           .debug_static_vars and debug_weaknames sections is not currently           supported.       --dwarf-depth=n           Limit the dump of the ".debug_info" section to n children.  This is           only useful with --debug-dump=info.  The default is to print all           DIEs; the special value 0 for n will also have this effect.           With a non-zero value for n, DIEs at or deeper than n levels will           not be printed.  The range for n is zero-based.       --dwarf-start=n           Print only DIEs beginning with the DIE numbered n.  This is only           useful with --debug-dump=info.           If specified, this option will suppress printing of any header           information and all DIEs before the DIE numbered n.  Only siblings           and children of the specified DIE will be printed.           This can be used in conjunction with --dwarf-depth.       --ctf=section           Display the contents of the specified CTF section.  CTF sections           themselves contain many subsections, all of which are displayed in           order.       --ctf-parent=section           Specify the name of another section from which the CTF dictionary           can inherit types.  (If none is specified, we assume the CTF           dictionary inherits types from the default-named member of the           archive contained within this section.)       --ctf-symbols=section       --ctf-strings=section           Specify the name of another section from which the CTF file can           inherit strings and symbols.  By default, the ".symtab" and its           linked string table are used.           If either of --ctf-symbols or --ctf-strings is specified, the other           must be specified as well.       -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.       @file           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           removed.           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.SEE ALSOobjdump(1), and the Info entries for binutils.COPYRIGHT       Copyright (c) 1991-2020 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 1.3 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-2.34                     2024-01-23READELF(1)