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       addr2line - convert addresses into file names and line numbers.


       addr2line [-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 addresses.

       The format of the output is FILENAME:LINENO.  The file name and line
       number for each address is printed on a separate line.  If the -f
       option is used, then each FILENAME:LINENO line is preceded by a
       FUNCTIONNAME line which is the name of the function containing the

       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 0.


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

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

           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 information.

           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

           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

           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.


       Info entries for binutils.


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