$funcsourcetrace  –  Relative Line Numbers and File Names of the Execution Stack

$funcsourcetrace is an array and contains the relative line numbers and the file names of the currently executing functions, source files and eval command (if EVAL_LINENO is set).

$funcfiletrace is more useful, as it contains absolute line numbers instead.

Links

• The Z Shell manual
• The Z shell manual on $funcfiletrace