{ "content": [ { "type": "text", "text": "# x86_64-linux-gnu-readelf(1) (man)\n\n**Summary:** readelf - display information about ELF files\n\n**Synopsis:** readelf [-a|--all]\n[-h|--file-header]\n[-l|--program-headers|--segments]\n[-S|--section-headers|--sections]\n[-g|--section-groups]\n[-t|--section-details]\n[-e|--headers]\n[-s|--syms|--symbols]\n[--dyn-syms|--lto-syms]\n[--sym-base=[0|8|10|16]]\n[--demangle=style|--no-demangle]\n[--quiet]\n[--recurse-limit|--no-recurse-limit]\n[-U method|--unicode=method]\n[-n|--notes]\n[-r|--relocs]\n[-u|--unwind]\n[-d|--dynamic]\n[-V|--version-info]\n[-A|--arch-specific]\n[-D|--use-dynamic]\n[-L|--lint|--enable-checks]\n[-x |--hex-dump=]\n[-p |--string-dump=]\n[-R |--relocated-dump=]\n[-z|--decompress]\n[-c|--archive-index]\n[-w[lLiaprmfFsoORtUuTgAck]|\n--debug-dump[=rawline,=decodedline,=info,=abbrev,=pubnames,=aranges,=macro,=frames,=frames-interp,=str,=str-offsets,=loc,=Ranges,=pubtypes,=traceinfo,=traceabbrev,=tracearanges,=gdbindex,=addr,=cuindex,=links]]\n[-wK|--debug-dump=follow-links]\n[-wN|--debug-dump=no-follow-links]\n[-P|--process-links]\n[--dwarf-depth=n]\n[--dwarf-start=n]\n[--ctf=section]\n[--ctf-parent=section]\n[--ctf-symbols=section]\n[--ctf-strings=section]\n[-I|--histogram]\n[-v|--version]\n[-W|--wide]\n[-T|--silent-truncation]\n[-H|--help]\nelffile...\n\n## Flags\n\n| Flag | Long | Arg | Description |\n|------|------|-----|-------------|\n| -a | — | — | |\n| — | --all | — | Equivalent to specifying --file-header, --program-headers, --sections, --symbols, --relocs, --dynamic, --notes, --versio |\n| -h | — | — | |\n| — | --file-header | — | Displays the information contained in the ELF header at the start of the file. |\n| -l | — | — | |\n| — | --program-headers | — | |\n| — | --segments | — | Displays the information contained in the file's segment headers, if it has any. |\n| — | --quiet | — | Suppress \"no symbols\" diagnostic. |\n| -S | — | — | |\n| — | --sections | — | |\n| — | --section-headers | — | Displays the information contained in the file's section headers, if it has any. |\n| -g | — | — | |\n| — | --section-groups | — | Displays the information contained in the file's section groups, if it has any. |\n| -t | — | — | |\n| — | --section-details | — | Displays the detailed section information. Implies -S. |\n| -s | — | — | |\n| — | --symbols | — | |\n| — | --syms | — | Displays the entries in symbol table section of the file, if it has one. If a symbol has version information associated |\n| — | --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 fo |\n| — | --lto-syms | — | Displays the contents of any LTO symbol tables in the file. |\n| — | --sym-base | [0|8|10|16 | Forces the size field of the symbol table to use the given base. Any unrecognized options will be treated as 0. --sym-ba |\n| -C | — | — | --demangle[=style] Decode (demangle) low-level symbol names into user-level names. This makes C++ function names readabl |\n| — | --no-demangle | — | Do not demangle low-level symbol names. This is the default. |\n| — | --recurse-limit | — | |\n| — | --no-recurse-limit | — | |\n| — | --recursion-limit | — | |\n| — | --no-recursion-limit | — | Enables or disables a limit on the amount of recursion performed whilst demangling strings. Since the name mangling form |\n| -U | — | — | |\n| — | --unicode | [default|invalid|locale|escape|hex|highlight | Controls the display of non-ASCII characters in identifier names. The default (--unicode=locale or --unicode=default) is |\n| -e | — | — | |\n| — | --headers | — | Display all the headers in the file. Equivalent to -h -l -S. |\n| -n | — | — | |\n| — | --notes | — | Displays the contents of the NOTE segments and/or sections, if any. |\n| -r | — | — | |\n| — | --relocs | — | Displays the contents of the file's relocation section, if it has one. |\n| -u | — | — | |\n| — | --unwind | — | Displays the contents of the file's unwind section, if it has one. Only the unwind sections for IA64 ELF files, as well |\n| -d | — | — | |\n| — | --dynamic | — | Displays the contents of the file's dynamic section, if it has one. |\n| -V | — | — | |\n| — | --version-info | — | Displays the contents of the version sections in the file, it they exist. |\n| -A | — | — | |\n| — | --arch-specific | — | Displays architecture-specific information in the file, if there is any. |\n| -D | — | — | |\n| — | --use-dynamic | — | When displaying symbols, this option makes readelf use the symbol hash tables in the file's dynamic section, rather than |\n| -L | — | — | |\n| — | --lint | — | |\n| — | --enable-checks | — | Displays warning messages about possible problems with the file(s) being examined. If used on its own then all of the co |\n| -x | — | — | |\n| — | --hex-dump | (1 lines)\n - --hex-dump= (4 lines)\n - -R (1 lines)\n - --relocated-dump= (5 lines)\n - -p (1 lines)\n - --string-dump= (4 lines)\n - -z (1 lines)\n - --decompress (3 lines)\n - -c (1 lines)\n - --archive-index (4 lines)\n - -w[lLiaprmfFsOoRtUuTgAckK] (135 lines)\n - -P (1 lines)\n - --process-links (27 lines)\n - -I (1 lines)\n - --histogram (3 lines)\n - -v (1 lines)\n - --version (2 lines)\n - -W (1 lines)\n - --wide (5 lines)\n - -T (1 lines)\n - --silent-truncation (5 lines)\n - -H (1 lines)\n - --help (13 lines)\n- **SEE ALSO** (2 lines)\n- **COPYRIGHT** (11 lines)\n\n## Full Content\n\n### NAME\n\nreadelf - display information about ELF files\n\n### SYNOPSIS\n\nreadelf [-a|--all]\n[-h|--file-header]\n[-l|--program-headers|--segments]\n[-S|--section-headers|--sections]\n[-g|--section-groups]\n[-t|--section-details]\n[-e|--headers]\n[-s|--syms|--symbols]\n[--dyn-syms|--lto-syms]\n[--sym-base=[0|8|10|16]]\n[--demangle=style|--no-demangle]\n[--quiet]\n[--recurse-limit|--no-recurse-limit]\n[-U method|--unicode=method]\n[-n|--notes]\n[-r|--relocs]\n[-u|--unwind]\n[-d|--dynamic]\n[-V|--version-info]\n[-A|--arch-specific]\n[-D|--use-dynamic]\n[-L|--lint|--enable-checks]\n[-x |--hex-dump=]\n[-p |--string-dump=]\n[-R |--relocated-dump=]\n[-z|--decompress]\n[-c|--archive-index]\n[-w[lLiaprmfFsoORtUuTgAck]|\n--debug-dump[=rawline,=decodedline,=info,=abbrev,=pubnames,=aranges,=macro,=frames,=frames-interp,=str,=str-offsets,=loc,=Ranges,=pubtypes,=traceinfo,=traceabbrev,=tracearanges,=gdbindex,=addr,=cuindex,=links]]\n[-wK|--debug-dump=follow-links]\n[-wN|--debug-dump=no-follow-links]\n[-P|--process-links]\n[--dwarf-depth=n]\n[--dwarf-start=n]\n[--ctf=section]\n[--ctf-parent=section]\n[--ctf-symbols=section]\n[--ctf-strings=section]\n[-I|--histogram]\n[-v|--version]\n[-W|--wide]\n[-T|--silent-truncation]\n[-H|--help]\nelffile...\n\n### DESCRIPTION\n\nreadelf displays information about one or more ELF format object files. The options control\nwhat particular information to display.\n\nelffile... are the object files to be examined. 32-bit and 64-bit ELF files are supported,\nas are archives containing ELF files.\n\nThis program performs a similar function to objdump but it goes into more detail and it\nexists independently of the BFD library, so if there is a bug in BFD then readelf will not be\naffected.\n\n### OPTIONS\n\nThe long and short forms of options, shown here as alternatives, are equivalent. At least\none option besides -v or -H must be given.\n\n#### -a\n\n#### --all\n\nEquivalent to specifying --file-header, --program-headers, --sections, --symbols,\n--relocs, --dynamic, --notes, --version-info, --arch-specific, --unwind, --section-groups\nand --histogram.\n\nNote - this option does not enable --use-dynamic itself, so if that option is not present\non the command line then dynamic symbols and dynamic relocs will not be displayed.\n\n#### -h\n\n#### --file-header\n\nDisplays the information contained in the ELF header at the start of the file.\n\n#### -l\n\n#### --program-headers\n\n#### --segments\n\nDisplays the information contained in the file's segment headers, if it has any.\n\n#### --quiet\n\nSuppress \"no symbols\" diagnostic.\n\n#### -S\n\n#### --sections\n\n#### --section-headers\n\nDisplays the information contained in the file's section headers, if it has any.\n\n#### -g\n\n#### --section-groups\n\nDisplays the information contained in the file's section groups, if it has any.\n\n#### -t\n\n#### --section-details\n\nDisplays the detailed section information. Implies -S.\n\n#### -s\n\n#### --symbols\n\n#### --syms\n\nDisplays the entries in symbol table section of the file, if it has one. If a symbol has\nversion information associated with it then this is displayed as well. The version\nstring is displayed as a suffix to the symbol name, preceded by an @ character. For\nexample foo@VER1. If the version is the default version to be used when resolving\nunversioned references to the symbol then it is displayed as a suffix preceded by two @\ncharacters. For example foo@@VER2.\n\n#### --dyn-syms\n\nDisplays the entries in dynamic symbol table section of the file, if it has one. The\noutput format is the same as the format used by the --syms option.\n\n#### --lto-syms\n\nDisplays the contents of any LTO symbol tables in the file.\n\n#### --sym-base=[0|8|10|16]\n\nForces the size field of the symbol table to use the given base. Any unrecognized\noptions will be treated as 0. --sym-base=0 represents the default and legacy behaviour.\nThis will output sizes as decimal for numbers less than 100000. For sizes 100000 and\ngreater hexadecimal notation will be used with a 0x prefix. --sym-base=8 will give the\nsymbol sizes in octal. --sym-base=10 will always give the symbol sizes in decimal.\n--sym-base=16 will always give the symbol sizes in hexadecimal with a 0x prefix.\n\n#### -C\n\n--demangle[=style]\nDecode (demangle) low-level symbol names into user-level names. This makes C++ function\nnames readable. Different compilers have different mangling styles. The optional\ndemangling style argument can be used to choose an appropriate demangling style for your\ncompiler.\n\n#### --no-demangle\n\nDo not demangle low-level symbol names. This is the default.\n\n#### --recurse-limit\n\n#### --no-recurse-limit\n\n#### --recursion-limit\n\n#### --no-recursion-limit\n\nEnables or disables a limit on the amount of recursion performed whilst demangling\nstrings. Since the name mangling formats allow for an infinite level of recursion it is\npossible to create strings whose decoding will exhaust the amount of stack space\navailable on the host machine, triggering a memory fault. The limit tries to prevent\nthis from happening by restricting recursion to 2048 levels of nesting.\n\nThe default is for this limit to be enabled, but disabling it may be necessary in order\nto demangle truly complicated names. Note however that if the recursion limit is\ndisabled then stack exhaustion is possible and any bug reports about such an event will\nbe rejected.\n\n#### -U\n\n#### --unicode=[default|invalid|locale|escape|hex|highlight]\n\nControls the display of non-ASCII characters in identifier names. The default\n(--unicode=locale or --unicode=default) is to treat them as multibyte characters and\ndisplay them in the current locale. All other versions of this option treat the bytes as\nUTF-8 encoded values and attempt to interpret them. If they cannot be interpreted or if\nthe --unicode=invalid option is used then they are displayed as a sequence of hex bytes,\nencloses in curly parethesis characters.\n\nUsing the --unicode=escape option will display the characters as as unicode escape\nsequences (\\uxxxx). Using the --unicode=hex will display the characters as hex byte\nsequences enclosed between angle brackets.\n\nUsing the --unicode=highlight will display the characters as unicode escape sequences but\nit will also highlighted them in red, assuming that colouring is supported by the output\ndevice. The colouring is intended to draw attention to the presence of unicode sequences\nwhen they might not be expected.\n\n#### -e\n\n#### --headers\n\nDisplay all the headers in the file. Equivalent to -h -l -S.\n\n#### -n\n\n#### --notes\n\nDisplays the contents of the NOTE segments and/or sections, if any.\n\n#### -r\n\n#### --relocs\n\nDisplays the contents of the file's relocation section, if it has one.\n\n#### -u\n\n#### --unwind\n\nDisplays the contents of the file's unwind section, if it has one. Only the unwind\nsections for IA64 ELF files, as well as ARM unwind tables (\".ARM.exidx\" / \".ARM.extab\")\nare currently supported. If support is not yet implemented for your architecture you\ncould try dumping the contents of the .ehframes section using the --debug-dump=frames or\n--debug-dump=frames-interp options.\n\n#### -d\n\n#### --dynamic\n\nDisplays the contents of the file's dynamic section, if it has one.\n\n#### -V\n\n#### --version-info\n\nDisplays the contents of the version sections in the file, it they exist.\n\n#### -A\n\n#### --arch-specific\n\nDisplays architecture-specific information in the file, if there is any.\n\n#### -D\n\n#### --use-dynamic\n\nWhen displaying symbols, this option makes readelf use the symbol hash tables in the\nfile's dynamic section, rather than the symbol table sections.\n\nWhen displaying relocations, this option makes readelf display the dynamic relocations\nrather than the static relocations.\n\n#### -L\n\n#### --lint\n\n#### --enable-checks\n\nDisplays warning messages about possible problems with the file(s) being examined. If\nused on its own then all of the contents of the file(s) will be examined. If used with\none of the dumping options then the warning messages will only be produced for the things\nbeing displayed.\n\n#### -x \n\n#### --hex-dump=\n\nDisplays the contents of the indicated section as a hexadecimal bytes. A number\nidentifies a particular section by index in the section table; any other string\nidentifies all sections with that name in the object file.\n\n#### -R \n\n#### --relocated-dump=\n\nDisplays the contents of the indicated section as a hexadecimal bytes. A number\nidentifies a particular section by index in the section table; any other string\nidentifies all sections with that name in the object file. The contents of the section\nwill be relocated before they are displayed.\n\n#### -p \n\n#### --string-dump=\n\nDisplays the contents of the indicated section as printable strings. A number identifies\na particular section by index in the section table; any other string identifies all\nsections with that name in the object file.\n\n#### -z\n\n#### --decompress\n\nRequests that the section(s) being dumped by x, R or p options are decompressed before\nbeing displayed. If the section(s) are not compressed then they are displayed as is.\n\n#### -c\n\n#### --archive-index\n\nDisplays the file symbol index information contained in the header part of binary\narchives. Performs the same function as the t command to ar, but without using the BFD\nlibrary.\n\n#### -w[lLiaprmfFsOoRtUuTgAckK]\n\n--debug-dump[=rawline,=decodedline,=info,=abbrev,=pubnames,=aranges,=macro,=frames,=frames-interp,=str,=str-offsets,=loc,=Ranges,=pubtypes,=traceinfo,=traceabbrev,=tracearanges,=gdbindex,=addr,=cuindex,=links,=follow-links]\nDisplays the contents of the DWARF debug sections in the file, if any are present.\nCompressed debug sections are automatically decompressed (temporarily) before they are\ndisplayed. If one or more of the optional letters or words follows the switch then only\nthose type(s) of data will be dumped. The letters and words refer to the following\ninformation:\n\n\"a\"\n\"=abbrev\"\nDisplays the contents of the .debugabbrev section.\n\n\"A\"\n\"=addr\"\nDisplays the contents of the .debugaddr section.\n\n\"c\"\n\"=cuindex\"\nDisplays the contents of the .debugcuindex and/or .debugtuindex sections.\n\n\"f\"\n\"=frames\"\nDisplay the raw contents of a .debugframe section.\n\n\"F\"\n\"=frames-interp\"\nDisplay the interpreted contents of a .debugframe section.\n\n\"g\"\n\"=gdbindex\"\nDisplays the contents of the .gdbindex and/or .debugnames sections.\n\n\"i\"\n\"=info\"\nDisplays the contents of the .debuginfo section. Note: the output from this option\ncan also be restricted by the use of the --dwarf-depth and --dwarf-start options.\n\n\"k\"\n\"=links\"\nDisplays the contents of the .gnudebuglink, .gnudebugaltlink and .debugsup\nsections, if any of them are present. Also displays any links to separate dwarf\nobject files (dwo), if they are specified by the DWATGNUdwoname or DWATdwoname\nattributes in the .debuginfo section.\n\n\"K\"\n\"=follow-links\"\nDisplay the contents of any selected debug sections that are found in linked,\nseparate debug info file(s). This can result in multiple versions of the same debug\nsection being displayed if it exists in more than one file.\n\nIn addition, when displaying DWARF attributes, if a form is found that references the\nseparate debug info file, then the referenced contents will also be displayed.\n\nNote - in some distributions this option is enabled by default. It can be disabled\nvia the N debug option. The default can be chosen when configuring the binutils via\nthe --enable-follow-debug-links=yes or --enable-follow-debug-links=no options. If\nthese are not used then the default is to enable the following of debug links.\n\n\"N\"\n\"=no-follow-links\"\nDisables the following of links to separate debug info files.\n\n\"l\"\n\"=rawline\"\nDisplays the contents of the .debugline section in a raw format.\n\n\"L\"\n\"=decodedline\"\nDisplays the interpreted contents of the .debugline section.\n\n\"m\"\n\"=macro\"\nDisplays the contents of the .debugmacro and/or .debugmacinfo sections.\n\n\"o\"\n\"=loc\"\nDisplays the contents of the .debugloc and/or .debugloclists sections.\n\n\"O\"\n\"=str-offsets\"\nDisplays the contents of the .debugstroffsets section.\n\n\"p\"\n\"=pubnames\"\nDisplays the contents of the .debugpubnames and/or .debuggnupubnames sections.\n\n\"r\"\n\"=aranges\"\nDisplays the contents of the .debugaranges section.\n\n\"R\"\n\"=Ranges\"\nDisplays the contents of the .debugranges and/or .debugrnglists sections.\n\n\"s\"\n\"=str\"\nDisplays the contents of the .debugstr, .debuglinestr and/or .debugstroffsets\nsections.\n\n\"t\"\n\"=pubtype\"\nDisplays the contents of the .debugpubtypes and/or .debuggnupubtypes sections.\n\n\"T\"\n\"=tracearanges\"\nDisplays the contents of the .tracearanges section.\n\n\"u\"\n\"=traceabbrev\"\nDisplays the contents of the .traceabbrev section.\n\n\"U\"\n\"=traceinfo\"\nDisplays the contents of the .traceinfo section.\n\nNote: displaying the contents of .debugstaticfuncs, .debugstaticvars and\ndebugweaknames sections is not currently supported.\n\n--dwarf-depth=n\nLimit the dump of the \".debuginfo\" section to n children. This is only useful with\n--debug-dump=info. The default is to print all DIEs; the special value 0 for n will also\nhave this effect.\n\nWith a non-zero value for n, DIEs at or deeper than n levels will not be printed. The\nrange for n is zero-based.\n\n--dwarf-start=n\nPrint only DIEs beginning with the DIE numbered n. This is only useful with\n--debug-dump=info.\n\nIf specified, this option will suppress printing of any header information and all DIEs\nbefore the DIE numbered n. Only siblings and children of the specified DIE will be\nprinted.\n\nThis can be used in conjunction with --dwarf-depth.\n\n#### -P\n\n#### --process-links\n\nDisplay the contents of non-debug sections found in separate debuginfo files that are\nlinked to the main file. This option automatically implies the -wK option, and only\nsections requested by other command line options will be displayed.\n\n--ctf[=section]\nDisplay the contents of the specified CTF section. CTF sections themselves contain many\nsubsections, all of which are displayed in order.\n\nBy default, display the name of the section named .ctf, which is the name emitted by ld.\n\n--ctf-parent=member\nIf the CTF section contains ambiguously-defined types, it will consist of an archive of\nmany CTF dictionaries, all inheriting from one dictionary containing unambiguous types.\nThis member is by default named .ctf, like the section containing it, but it is possible\nto change this name using the \"ctflinksetmembnamechanger\" function at link time.\nWhen looking at CTF archives that have been created by a linker that uses the name\nchanger to rename the parent archive member, --ctf-parent can be used to specify the name\nused for the parent.\n\n--ctf-symbols=section\n--ctf-strings=section\nSpecify the name of another section from which the CTF file can inherit strings and\nsymbols. By default, the \".symtab\" and its linked string table are used.\n\nIf either of --ctf-symbols or --ctf-strings is specified, the other must be specified as\nwell.\n\n#### -I\n\n#### --histogram\n\nDisplay a histogram of bucket list lengths when displaying the contents of the symbol\ntables.\n\n#### -v\n\n#### --version\n\nDisplay the version number of readelf.\n\n#### -W\n\n#### --wide\n\nDon't break output lines to fit into 80 columns. By default readelf breaks section header\nand segment listing lines for 64-bit ELF files, so that they fit into 80 columns. This\noption causes readelf to print each section header resp. each segment one a single line,\nwhich is far more readable on terminals wider than 80 columns.\n\n#### -T\n\n#### --silent-truncation\n\nNormally when readelf is displaying a symbol name, and it has to truncate the name to fit\ninto an 80 column display, it will add a suffix of \"[...]\" to the name. This command\nline option disables this behaviour, allowing 5 more characters of the name to be\ndisplayed and restoring the old behaviour of readelf (prior to release 2.35).\n\n#### -H\n\n#### --help\n\nDisplay the command-line options understood by readelf.\n\n@file\nRead command-line options from file. The options read are inserted in place of the\noriginal @file option. If file does not exist, or cannot be read, then the option will\nbe treated literally, and not removed.\n\nOptions in file are separated by whitespace. A whitespace character may be included in\nan option by surrounding the entire option in either single or double quotes. Any\ncharacter (including a backslash) may be included by prefixing the character to be\nincluded with a backslash. The file may itself contain additional @file options; any\nsuch options will be processed recursively.\n\n### SEE ALSO\n\nobjdump(1), and the Info entries for binutils.\n\n### COPYRIGHT\n\nCopyright (c) 1991-2022 Free Software Foundation, Inc.\n\nPermission is granted to copy, distribute and/or modify this document under the terms of the\nGNU Free Documentation License, Version 1.3 or any later version published by the Free\nSoftware Foundation; with no Invariant Sections, with no Front-Cover Texts, and with no Back-\nCover Texts. A copy of the license is included in the section entitled \"GNU Free\nDocumentation License\".\n\n\n\nbinutils-2.38 2025-12-03 READELF(1)\n\n" } ], "structuredContent": { "command": "x86_64-linux-gnu-readelf", "section": "1", "mode": "man", "summary": "readelf - display information about ELF files", "synopsis": "readelf [-a|--all]\n[-h|--file-header]\n[-l|--program-headers|--segments]\n[-S|--section-headers|--sections]\n[-g|--section-groups]\n[-t|--section-details]\n[-e|--headers]\n[-s|--syms|--symbols]\n[--dyn-syms|--lto-syms]\n[--sym-base=[0|8|10|16]]\n[--demangle=style|--no-demangle]\n[--quiet]\n[--recurse-limit|--no-recurse-limit]\n[-U method|--unicode=method]\n[-n|--notes]\n[-r|--relocs]\n[-u|--unwind]\n[-d|--dynamic]\n[-V|--version-info]\n[-A|--arch-specific]\n[-D|--use-dynamic]\n[-L|--lint|--enable-checks]\n[-x |--hex-dump=]\n[-p |--string-dump=]\n[-R |--relocated-dump=]\n[-z|--decompress]\n[-c|--archive-index]\n[-w[lLiaprmfFsoORtUuTgAck]|\n--debug-dump[=rawline,=decodedline,=info,=abbrev,=pubnames,=aranges,=macro,=frames,=frames-interp,=str,=str-offsets,=loc,=Ranges,=pubtypes,=traceinfo,=traceabbrev,=tracearanges,=gdbindex,=addr,=cuindex,=links]]\n[-wK|--debug-dump=follow-links]\n[-wN|--debug-dump=no-follow-links]\n[-P|--process-links]\n[--dwarf-depth=n]\n[--dwarf-start=n]\n[--ctf=section]\n[--ctf-parent=section]\n[--ctf-symbols=section]\n[--ctf-strings=section]\n[-I|--histogram]\n[-v|--version]\n[-W|--wide]\n[-T|--silent-truncation]\n[-H|--help]\nelffile...", "flags": [ { "flag": "-a", "long": null, "arg": null, "description": "" }, { "flag": "", "long": "--all", "arg": null, "description": "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." }, { "flag": "-h", "long": null, "arg": null, "description": "" }, { "flag": "", "long": "--file-header", "arg": null, "description": "Displays the information contained in the ELF header at the start of the file." }, { "flag": "-l", "long": null, "arg": null, "description": "" }, { "flag": "", "long": "--program-headers", "arg": null, "description": "" }, { "flag": "", "long": "--segments", "arg": null, "description": "Displays the information contained in the file's segment headers, if it has any." }, { "flag": "", "long": "--quiet", "arg": null, "description": "Suppress \"no symbols\" diagnostic." }, { "flag": "-S", "long": null, "arg": null, "description": "" }, { "flag": "", "long": "--sections", "arg": null, "description": "" }, { "flag": "", "long": "--section-headers", "arg": null, "description": "Displays the information contained in the file's section headers, if it has any." }, { "flag": "-g", "long": null, "arg": null, "description": "" }, { "flag": "", "long": "--section-groups", "arg": null, "description": "Displays the information contained in the file's section groups, if it has any." }, { "flag": "-t", "long": null, "arg": null, "description": "" }, { "flag": "", "long": "--section-details", "arg": null, "description": "Displays the detailed section information. Implies -S." }, { "flag": "-s", "long": null, "arg": null, "description": "" }, { "flag": "", "long": "--symbols", "arg": null, "description": "" }, { "flag": "", "long": "--syms", "arg": null, "description": "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, preceded by an @ character. For example foo@VER1. If the version is the default version to be used when resolving unversioned references to the symbol then it is displayed as a suffix preceded by two @ characters. For example foo@@VER2." }, { "flag": "", "long": "--dyn-syms", "arg": null, "description": "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." }, { "flag": "", "long": "--lto-syms", "arg": null, "description": "Displays the contents of any LTO symbol tables in the file." }, { "flag": "", "long": "--sym-base", "arg": "[0|8|10|16", "description": "Forces the size field of the symbol table to use the given base. Any unrecognized options will be treated as 0. --sym-base=0 represents the default and legacy behaviour. This will output sizes as decimal for numbers less than 100000. For sizes 100000 and greater hexadecimal notation will be used with a 0x prefix. --sym-base=8 will give the symbol sizes in octal. --sym-base=10 will always give the symbol sizes in decimal. --sym-base=16 will always give the symbol sizes in hexadecimal with a 0x prefix." }, { "flag": "-C", "long": null, "arg": null, "description": "--demangle[=style] Decode (demangle) low-level symbol names into user-level names. This makes C++ function names readable. Different compilers have different mangling styles. The optional demangling style argument can be used to choose an appropriate demangling style for your compiler." }, { "flag": "", "long": "--no-demangle", "arg": null, "description": "Do not demangle low-level symbol names. This is the default." }, { "flag": "", "long": "--recurse-limit", "arg": null, "description": "" }, { "flag": "", "long": "--no-recurse-limit", "arg": null, "description": "" }, { "flag": "", "long": "--recursion-limit", "arg": null, "description": "" }, { "flag": "", "long": "--no-recursion-limit", "arg": null, "description": "Enables or disables a limit on the amount of recursion performed whilst demangling strings. Since the name mangling formats allow for an infinite level of recursion it is possible to create strings whose decoding will exhaust the amount of stack space available on the host machine, triggering a memory fault. The limit tries to prevent this from happening by restricting recursion to 2048 levels of nesting. The default is for this limit to be enabled, but disabling it may be necessary in order to demangle truly complicated names. Note however that if the recursion limit is disabled then stack exhaustion is possible and any bug reports about such an event will be rejected." }, { "flag": "-U", "long": null, "arg": null, "description": "" }, { "flag": "", "long": "--unicode", "arg": "[default|invalid|locale|escape|hex|highlight", "description": "Controls the display of non-ASCII characters in identifier names. The default (--unicode=locale or --unicode=default) is to treat them as multibyte characters and display them in the current locale. All other versions of this option treat the bytes as UTF-8 encoded values and attempt to interpret them. If they cannot be interpreted or if the --unicode=invalid option is used then they are displayed as a sequence of hex bytes, encloses in curly parethesis characters. Using the --unicode=escape option will display the characters as as unicode escape sequences (\\uxxxx). Using the --unicode=hex will display the characters as hex byte sequences enclosed between angle brackets. Using the --unicode=highlight will display the characters as unicode escape sequences but it will also highlighted them in red, assuming that colouring is supported by the output device. The colouring is intended to draw attention to the presence of unicode sequences when they might not be expected." }, { "flag": "-e", "long": null, "arg": null, "description": "" }, { "flag": "", "long": "--headers", "arg": null, "description": "Display all the headers in the file. Equivalent to -h -l -S." }, { "flag": "-n", "long": null, "arg": null, "description": "" }, { "flag": "", "long": "--notes", "arg": null, "description": "Displays the contents of the NOTE segments and/or sections, if any." }, { "flag": "-r", "long": null, "arg": null, "description": "" }, { "flag": "", "long": "--relocs", "arg": null, "description": "Displays the contents of the file's relocation section, if it has one." }, { "flag": "-u", "long": null, "arg": null, "description": "" }, { "flag": "", "long": "--unwind", "arg": null, "description": "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 .ehframes section using the --debug-dump=frames or --debug-dump=frames-interp options." }, { "flag": "-d", "long": null, "arg": null, "description": "" }, { "flag": "", "long": "--dynamic", "arg": null, "description": "Displays the contents of the file's dynamic section, if it has one." }, { "flag": "-V", "long": null, "arg": null, "description": "" }, { "flag": "", "long": "--version-info", "arg": null, "description": "Displays the contents of the version sections in the file, it they exist." }, { "flag": "-A", "long": null, "arg": null, "description": "" }, { "flag": "", "long": "--arch-specific", "arg": null, "description": "Displays architecture-specific information in the file, if there is any." }, { "flag": "-D", "long": null, "arg": null, "description": "" }, { "flag": "", "long": "--use-dynamic", "arg": null, "description": "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." }, { "flag": "-L", "long": null, "arg": null, "description": "" }, { "flag": "", "long": "--lint", "arg": null, "description": "" }, { "flag": "", "long": "--enable-checks", "arg": null, "description": "Displays warning messages about possible problems with the file(s) being examined. If used on its own then all of the contents of the file(s) will be examined. If used with one of the dumping options then the warning messages will only be produced for the things being displayed." }, { "flag": "-x", "long": null, "arg": null, "description": "" }, { "flag": "", "long": "--hex-dump", "arg": "", "lines": 1, "flag": "-x" }, { "name": "--hex-dump=", "lines": 4, "long": "--hex-dump", "arg": "", "lines": 1, "flag": "-R" }, { "name": "--relocated-dump=", "lines": 5, "long": "--relocated-dump", "arg": "", "lines": 1, "flag": "-p" }, { "name": "--string-dump=", "lines": 4, "long": "--string-dump", "arg": "