ADDR2LINE(1) GNU Development Tools ADDR2LINE(1)
NAME
addr2line - convert addresses into file names and line numbers.
SYNOPSIS
addr2line [-a|--addresses]
[-b bfdname|--target=bfdname]
[-C|--demangle[=style]]
[-e filename|--exe=filename]
[-f|--functions] [-s|--basename]
[-i|--inlines]
[-p|--pretty-print]
[-j|--section=name]
[-H|--help] [-V|--version]
[addr addr ...]
DESCRIPTION
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. By default each input address generates one line of output.
Two options can generate additional lines before each FILENAME:LINENO line (in that order).
If the -a option is used then a line with the input address is displayed.
If the -f option is used, then a line with the FUNCTIONNAME is displayed. This is the name of the function
containing the address.
One option can generate additional lines after the FILENAME:LINENO line.
If the -i option is used and the code at the given address is present there because of inlining by the
compiler then additional lines are displayed afterwards. One or two extra lines (if the -f option is used)
are displayed for each inlined function.
Alternatively if the -p option is used then each input address generates a single, long, output line
containing the address, the function name, the file name and the line number. If the -i option has also been
used then any inlined functions will be displayed in the same manner, but on separate lines, and prefixed by
the text (inlined by).
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.
OPTIONS
--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.
-e filename
--exe=filename
Specify the name of the executable for which addresses should be translated. The default file is a.out.
-f
--functions
Display function names as well as file and line number information.
-s
--basenames
Display only the base of each file name.
-i
--inlines
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.
-j
--section
Read offsets relative to the specified section instead of absolute addresses.
-p
--pretty-print
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).
@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.
SEE ALSO
Info entries for binutils.
COPYRIGHT
Copyright (c) 1991-2014 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".
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