addr2line - convert addresses into file names and line numbers.
[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
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
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 equivalent.
Info entries for binutils.
Copyright (c) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
- Display the address before the function name, file and line number
information. The address is printed with a 0x prefix to easily
- -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 compiler.
- -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
"callee1" which inlines
"callee2", and address is from
"callee2", the source information for
"main" will also be printed.
- 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
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
Permission is granted to copy, distribute and/or modify this
document under the terms of the GNU Free Documentation License, Version 1.1
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