Provided by: systemtap-doc_2.3-1ubuntu1.4_all 

NAME
function::usymdata - Return the symbol and module offset of an address.
SYNOPSIS
usymdata:string(addr:long)
ARGUMENTS
addr
The address to translate.
DESCRIPTION
Returns the (function) symbol name associated with the given address in the current task if known, the
offset from the start and the size of the symbol, plus the module name (between brackets). If symbol is
unknown, but module is known, the offset inside the module, plus the size of the module is added. If any
element is not known it will be omitted and if the symbol name is unknown it will return the hex string
for the given address.
SystemTap Tapset Reference March 2016 FUNCTION::USYMDATA(3stap)