{ "mode": "man", "parameter": "ADDR2LINE", "section": "1", "url": "https://www.chedong.com/phpMan.php/man/ADDR2LINE/1/json", "generated": "2026-10-22T00:51:05Z", "synopsis": "addr2line [-a|--addresses]\n[-b bfdname|--target=bfdname]\n[-C|--demangle[=style]]\n[-r|--no-recurse-limit]\n[-R|--recurse-limit]\n[-e filename|--exe=filename]\n[-f|--functions] [-s|--basename]\n[-i|--inlines]\n[-p|--pretty-print]\n[-j|--section=name]\n[-H|--help] [-V|--version]\n[addr addr ...]", "sections": { "NAME": { "content": "addr2line - convert addresses or symbol+offset into file names and line numbers\n", "subsections": [] }, "SYNOPSIS": { "content": "addr2line [-a|--addresses]\n[-b bfdname|--target=bfdname]\n[-C|--demangle[=style]]\n[-r|--no-recurse-limit]\n[-R|--recurse-limit]\n[-e filename|--exe=filename]\n[-f|--functions] [-s|--basename]\n[-i|--inlines]\n[-p|--pretty-print]\n[-j|--section=name]\n[-H|--help] [-V|--version]\n[addr addr ...]\n", "subsections": [] }, "DESCRIPTION": { "content": "addr2line translates addresses or symbol+offset into file names and line numbers. Given an\naddress or symbol+offset in an executable or an offset in a section of a relocatable object,\nit uses the debugging information to figure out which file name and line number are\nassociated with it.\n\nThe executable or relocatable object to use is specified with the -e option. The default is\nthe file a.out. The section in the relocatable object to use is specified with the -j\noption.\n\naddr2line has two modes of operation.\n\nIn the first, hexadecimal addresses or symbol+offset are specified on the command line, and\naddr2line displays the file name and line number for each address.\n\nIn the second, addr2line reads hexadecimal addresses or symbol+offset from standard input,\nand prints the file name and line number for each address on standard output. In this mode,\naddr2line may be used in a pipe to convert dynamically chosen addresses.\n\nThe format of the output is FILENAME:LINENO. By default each input address generates one\nline of output.\n\nTwo options can generate additional lines before each FILENAME:LINENO line (in that order).\n\nIf the -a option is used then a line with the input address is displayed.\n\nIf the -f option is used, then a line with the FUNCTIONNAME is displayed. This is the name\nof the function containing the address.\n\nOne option can generate additional lines after the FILENAME:LINENO line.\n\nIf the -i option is used and the code at the given address is present there because of\ninlining by the compiler then additional lines are displayed afterwards. One or two extra\nlines (if the -f option is used) are displayed for each inlined function.\n\nAlternatively if the -p option is used then each input address generates a single, long,\noutput line containing the address, the function name, the file name and the line number. If\nthe -i option has also been used then any inlined functions will be displayed in the same\nmanner, but on separate lines, and prefixed by the text (inlined by).\n\nIf the file name or function name can not be determined, addr2line will print two question\nmarks in their place. If the line number can not be determined, addr2line will print 0.\n\nWhen symbol+offset is used, +offset is optional, except when the symbol is ambigious with a\nhex number. The resolved symbols can be mangled or unmangled, except unmangled symbols with +\nare not allowed.\n", "subsections": [] }, "OPTIONS": { "content": "The long and short forms of options, shown here as alternatives, are equivalent.\n", "subsections": [ { "name": "-a", "content": "", "flag": "-a" }, { "name": "--addresses", "content": "Display the address before the function name, file and line number information. The\naddress is printed with a 0x prefix to easily identify it.\n", "long": "--addresses" }, { "name": "-b _", "content": "--target=bfdname\nSpecify that the object-code format for the object files is bfdname.\n", "flag": "-b" }, { "name": "-C", "content": "--demangle[=style]\nDecode (demangle) low-level symbol names into user-level names. Besides removing any\ninitial underscore prepended by the system, this makes C++ function names readable.\nDifferent compilers have different mangling styles. The optional demangling style\nargument can be used to choose an appropriate demangling style for your compiler.\n", "flag": "-C" }, { "name": "-e _", "content": "--exe=filename\nSpecify the name of the executable for which addresses should be translated. The default\nfile is a.out.\n", "flag": "-e" }, { "name": "-f", "content": "", "flag": "-f" }, { "name": "--functions", "content": "Display function names as well as file and line number information.\n", "long": "--functions" }, { "name": "-s", "content": "", "flag": "-s" }, { "name": "--basenames", "content": "Display only the base of each file name.\n", "long": "--basenames" }, { "name": "-i", "content": "", "flag": "-i" }, { "name": "--inlines", "content": "If the address belongs to a function that was inlined, the source information for all\nenclosing scopes back to the first non-inlined function will also be printed. For\nexample, if \"main\" inlines \"callee1\" which inlines \"callee2\", and address is from\n\"callee2\", the source information for \"callee1\" and \"main\" will also be printed.\n", "long": "--inlines" }, { "name": "-j", "content": "", "flag": "-j" }, { "name": "--section", "content": "Read offsets relative to the specified section instead of absolute addresses.\n", "long": "--section" }, { "name": "-p", "content": "", "flag": "-p" }, { "name": "--pretty-print", "content": "Make the output more human friendly: each location are printed on one line. If option -i\nis specified, lines for all enclosing scopes are prefixed with (inlined by).\n", "long": "--pretty-print" }, { "name": "-r", "content": "", "flag": "-r" }, { "name": "-R", "content": "", "flag": "-R" }, { "name": "--recurse-limit", "content": "", "long": "--recurse-limit" }, { "name": "--no-recurse-limit", "content": "", "long": "--no-recurse-limit" }, { "name": "--recursion-limit", "content": "", "long": "--recursion-limit" }, { "name": "--no-recursion-limit", "content": "Enables 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\nThe -r option is a synonym for the --no-recurse-limit option. The -R option is a synonym\nfor the --recurse-limit option.\n\nNote this option is only effective if the -C or --demangle option has been enabled.\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", "long": "--no-recursion-limit" } ] }, "SEE ALSO": { "content": "Info entries for binutils.\n", "subsections": [] }, "COPYRIGHT": { "content": "Copyright (c) 1991-2024 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\nbinutils-2.42 2026-02-09 ADDR2LINE(1)", "subsections": [] } }, "summary": "addr2line - convert addresses or symbol+offset into file names and line numbers", "flags": [ { "flag": "-a", "long": null, "arg": null, "description": "" }, { "flag": "", "long": "--addresses", "arg": null, "description": "Display the address before the function name, file and line number information. The address is printed with a 0x prefix to easily identify it." }, { "flag": "-b", "long": null, "arg": null, "description": "--target=bfdname Specify that the object-code format for the object files is bfdname." }, { "flag": "-C", "long": null, "arg": null, "description": "--demangle[=style] Decode (demangle) low-level symbol names into user-level names. Besides removing any initial underscore prepended by the system, 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": "-e", "long": null, "arg": null, "description": "--exe=filename Specify the name of the executable for which addresses should be translated. The default file is a.out." }, { "flag": "-f", "long": null, "arg": null, "description": "" }, { "flag": "", "long": "--functions", "arg": null, "description": "Display function names as well as file and line number information." }, { "flag": "-s", "long": null, "arg": null, "description": "" }, { "flag": "", "long": "--basenames", "arg": null, "description": "Display only the base of each file name." }, { "flag": "-i", "long": null, "arg": null, "description": "" }, { "flag": "", "long": "--inlines", "arg": null, "description": "If the address belongs to a function that was inlined, the source information for all enclosing scopes back to the first non-inlined function will also be printed. For example, if \"main\" inlines \"callee1\" which inlines \"callee2\", and address is from \"callee2\", the source information for \"callee1\" and \"main\" will also be printed." }, { "flag": "-j", "long": null, "arg": null, "description": "" }, { "flag": "", "long": "--section", "arg": null, "description": "Read offsets relative to the specified section instead of absolute addresses." }, { "flag": "-p", "long": null, "arg": null, "description": "" }, { "flag": "", "long": "--pretty-print", "arg": null, "description": "Make the output more human friendly: each location are printed on one line. If option -i is specified, lines for all enclosing scopes are prefixed with (inlined by)." }, { "flag": "-r", "long": null, "arg": null, "description": "" }, { "flag": "-R", "long": null, "arg": null, "description": "" }, { "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. The -r option is a synonym for the --no-recurse-limit option. The -R option is a synonym for the --recurse-limit option. Note this option is only effective if the -C or --demangle option has been enabled. @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." } ], "examples": [], "see_also": [], "tldr": { "source": "official", "description": "Convert addresses of a binary into file names and line numbers.", "examples": [ { "description": "Display the filename and line number of the source code from an instruction address of an executable", "command": "addr2line {{-e|--exe}} {{path/to/executable}} {{address}}" }, { "description": "Display the function name, filename, and line number", "command": "addr2line {{-e|--exe}} {{path/to/executable}} {{-f|--functions}} {{address}}" }, { "description": "Demangle the function name for C++ code", "command": "addr2line {{-e|--exe}} {{path/to/executable}} {{-f|--functions}} {{-C|--demangle}} {{address}}" } ] } }