NAME

addr2line — translate program addresses to source file names and line numbers

SYNOPSIS

DESCRIPTION

The addr2line utility translates program addresses specified by the command line arguments hexaddress to their corresponding source file names and line numbers. If no arguments are given to addr2line, it will read these addresses from standard input.

Program addresses specified by arguments hexaddress are encoded using the conventions accepted by strtoull(3).

By default, addr2line will use the executable “a.out”. The -e option may be used to specified a different ELF object.

The addr2line utility recognizes the following options:

-a | --addresses

Display the address prior to the line number information.

-b target | --target=target

This option is recognized by addr2line but is ignored. It is supported for compatibility with GNU binutils.

-e pathname | --exe=pathname

Use the ELF object specified by argument pathname to translate addresses. If this option is not specified, addr2line will use the file “a.out”.

-f | --functions

Display function names in addition to file and line number information.

-i | --inlines

If the address specified belongs to an inlined function, also display the line number information for its caller, recursively until the first non-inlined caller.

-j sectionname | --section=sectionname

The values specified by arguments hexaddress are to be treated as offsets into the section named sectionname.

-p | --pretty-print

Display the line number information on one line, in human readable manner.

-s | --basename

Display only the base name for each file name.

-C | --demangle

Demangle C++ names.

-H | --help

Print a help message.

-V | --version

Print a version identifier and exit.

OUTPUT FORMAT

If the -f option was not specified, addr2line will print the file name and line number for each address specified on a separate line.

If the -f option was specified, addr2line will print a line containing the name of the function corresponding to program address hexaddress, followed by a line with the file name and line number.

If the -p option was specified, addr2line will print line number information and function name on one line in human readable manner. If the -i option was also specified, addr2line will print the caller function information prefixed with “(inlined by)”.

The addr2line utility prints the file name and line number using the format “FILENAME:LINENUMBER”.

If a file or function name could not be determined, addr2line will print a question mark in their place. If the line number could not be determined, addr2line will print a zero in its place.

EXAMPLES

To map address 080483c4 in the default executable a.out to a source file name and line number use:

To map address 080483c4 in executable helloworld, use:

To have addr2line act as a filter reading addresses from its standard input use:

To print the function name corresponding to an address in addition to its source file and line number use:

EXIT STATUS

The addr2line utility exits 0 on success, and >0 if an error occurs.

SEE ALSO

nm(1), elfdump(1), elfcopy(1), strtoull(3)

AUTHORS

The addr2line utility was written by Kai Wang <kaiwang27@users.sourceforge.net>.