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Updated: July 2014

addr2line (1g)


addr2line - convert addresses into file names and line numbers.


addr2line [-a|--addresses]
[-b bfdname|--target=bfdname]
[-e filename|--exe=filename]
[-f|--functions] [-s|--basename]
[-H|--help] [-V|--version]
[addr addr ...]


GNU Development Tools                                ADDR2LINE(1)

     addr2line - convert addresses into file names and line

     addr2line [-a|--addresses]
               [-b bfdname|--target=bfdname]
               [-e filename|--exe=filename]
               [-f|--functions] [-s|--basename]
               [-H|--help] [-V|--version]
               [addr addr ...]

     addr2line translates addresses into file names and line
     numbers.  Given an address in an executable or an offset in
     a section of a relocatable object, it uses the debugging
     information to figure out which file name and line number
     are associated with it.

     The executable or relocatable object to use is specified
     with the -e option.  The default is the file a.out.  The
     section in the relocatable object to use is specified with
     the -j option.

     addr2line has two modes of operation.

     In the first, hexadecimal addresses are specified on the
     command line, and addr2line displays the file name and line
     number for each address.

     In the second, addr2line reads hexadecimal addresses from
     standard input, and prints the file name and line number for
     each address on standard output.  In this mode, addr2line
     may be used in a pipe to convert dynamically chosen

     The format of the output is FILENAME:LINENO.  The file name
     and line number for each input address is printed on
     separate lines.

     If the -f option is used, then each FILENAME:LINENO line is
     preceded by FUNCTIONNAME which is the name of the function
     containing the address.

     If the -i option is used and the code at the given address
     is present there because of inlining by the compiler then
     the {FUNCTIONNAME} FILENAME:LINENO information for the
     inlining function will be displayed afterwards.  This

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GNU Development Tools                                ADDR2LINE(1)

     continues recursively until there is no more inlining to

     If the -a option is used then the output is prefixed by the
     input address.

     If the -p option is used then the output for each input
     address is displayed on one, possibly quite long, line.  If
     -p is not used then the output is broken up into multiple
     lines, based on the paragraphs above.

     If the file name or function name can not be determined,
     addr2line will print two question marks in their place.  If
     the line number can not be determined, addr2line will print

     The long and short forms of options, shown here as
     alternatives, are equivalent.

         Display the address before the function name, file and
         line number information.  The address is printed with a
         0x prefix to easily identify it.

     -b bfdname
         Specify that the object-code format for the object files
         is bfdname.

         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

     -e filename
         Specify the name of the executable for which addresses
         should be translated.  The default file is a.out.

         Display function names as well as file and line number


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GNU Development Tools                                ADDR2LINE(1)

         Display only the base of each file name.

         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

         Read offsets relative to the specified section instead
         of absolute addresses.

         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).

         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

     See attributes(5) for descriptions of the following

     |Availability   | developer/gnu-binutils |
     |Stability      | Uncommitted            |

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GNU Development Tools                                ADDR2LINE(1)

     Info entries for binutils.

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     2008, 2009, 2010, 2011, 2012 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".

     This software was built from source available at  The original
     community source was downloaded from

     Further information about this software can be found on the
     open source community website at

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