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.\"

.IX Title "ADDR2LINE 1"

.TH ADDR2LINE 1 "2008-01-09" "binutils-2.18.50" "GNU Development Tools"

.SH "NAME"

addr2line \- convert addresses into file names and line numbers.

.SH "SYNOPSIS"

.IX Header "SYNOPSIS"

addr2line [\fB\-b\fR \fIbfdname\fR|\fB\-\-target=\fR\fIbfdname\fR]

          [\fB\-C\fR|\fB\-\-demangle\fR[=\fIstyle\fR]]

          [\fB\-e\fR \fIfilename\fR|\fB\-\-exe=\fR\fIfilename\fR]

          [\fB\-f\fR|\fB\-\-functions\fR] [\fB\-s\fR|\fB\-\-basename\fR]

          [\fB\-i\fR|\fB\-\-inlines\fR]

          [\fB\-j\fR|\fB\-\-section=\fR\fIname\fR]

          [\fB\-H\fR|\fB\-\-help\fR] [\fB\-V\fR|\fB\-\-version\fR]

          [addr addr ...]

.SH "DESCRIPTION"

.IX Header "DESCRIPTION"

\&\fBaddr2line\fR 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.

.PP

The executable or relocatable object to use is specified with the \fB\-e\fR

option.  The default is the file \fIa.out\fR.  The section in the relocatable

object to use is specified with the \fB\-j\fR option.

.PP

\&\fBaddr2line\fR has two modes of operation.

.PP

In the first, hexadecimal addresses are specified on the command line,

and \fBaddr2line\fR displays the file name and line number for each

address.

.PP

In the second, \fBaddr2line\fR reads hexadecimal addresses from

standard input, and prints the file name and line number for each

address on standard output.  In this mode, \fBaddr2line\fR may be used

in a pipe to convert dynamically chosen addresses.

.PP

The format of the output is \fB\s-1FILENAME:LINENO\s0\fR.  The file name and

line number for each address is printed on a separate line.  If the

\&\fB\-f\fR option is used, then each \fB\s-1FILENAME:LINENO\s0\fR line is

preceded by a \fB\s-1FUNCTIONNAME\s0\fR line which is the name of the function

containing the address.

.PP

If the file name or function name can not be determined,

\&\fBaddr2line\fR will print two question marks in their place.  If the

line number can not be determined, \fBaddr2line\fR will print 0.

.SH "OPTIONS"

.IX Header "OPTIONS"

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

equivalent.

.IP "\fB\-b\fR \fIbfdname\fR" 4

.IX Item "-b bfdname"

.PD 0

.IP "\fB\-\-target=\fR\fIbfdname\fR" 4

.IX Item "--target=bfdname"

.PD

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

\&\fIbfdname\fR.

.IP "\fB\-C\fR" 4

.IX Item "-C"

.PD 0

.IP "\fB\-\-demangle[=\fR\fIstyle\fR\fB]\fR" 4

.IX Item "--demangle[=style]"

.PD

Decode (\fIdemangle\fR) 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. 

.IP "\fB\-e\fR \fIfilename\fR" 4

.IX Item "-e filename"

.PD 0

.IP "\fB\-\-exe=\fR\fIfilename\fR" 4

.IX Item "--exe=filename"

.PD

Specify the name of the executable for which addresses should be

translated.  The default file is \fIa.out\fR.

.IP "\fB\-f\fR" 4

.IX Item "-f"

.PD 0

.IP "\fB\-\-functions\fR" 4

.IX Item "--functions"

.PD

Display function names as well as file and line number information.

.IP "\fB\-s\fR" 4

.IX Item "-s"

.PD 0

.IP "\fB\-\-basenames\fR" 4

.IX Item "--basenames"

.PD

Display only the base of each file name.

.IP "\fB\-i\fR" 4

.IX Item "-i"

.PD 0

.IP "\fB\-\-inlines\fR" 4

.IX Item "--inlines"

.PD

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 \f(CW\*(C`main\*(C'\fR inlines

\&\f(CW\*(C`callee1\*(C'\fR which inlines \f(CW\*(C`callee2\*(C'\fR, and address is from

\&\f(CW\*(C`callee2\*(C'\fR, the source information for \f(CW\*(C`callee1\*(C'\fR and \f(CW\*(C`main\*(C'\fR

will also be printed.

.IP "\fB\-j\fR" 4

.IX Item "-j"

.PD 0

.IP "\fB\-\-section\fR" 4

.IX Item "--section"

.PD

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

.IP "\fB@\fR\fIfile\fR" 4

.IX Item "@file"

Read command-line options from \fIfile\fR.  The options read are

inserted in place of the original @\fIfile\fR option.  If \fIfile\fR

does not exist, or cannot be read, then the option will be treated

literally, and not removed.  

.Sp

Options in \fIfile\fR 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 \fIfile\fR may itself contain additional

@\fIfile\fR options; any such options will be processed recursively.

.SH "SEE ALSO"

.IX Header "SEE ALSO"

Info entries for \fIbinutils\fR.

.SH "COPYRIGHT"

.IX Header "COPYRIGHT"

Copyright (c) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,

2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.

.PP

Permission is granted to copy, distribute and/or modify this document

under the terms of the \s-1GNU\s0 Free Documentation License, Version 1.2

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 \*(L"\s-1GNU\s0 Free Documentation License\*(R".