This is the command i686-linux-gnu-addr2line that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
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 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
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
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.
The long and short forms of options, shown here as alternatives, are
Display the address before the function name, file and line number
information. The address is printed with a 0x prefix to easily
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
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
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).
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.
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