evaluates to non-
, the debugger is entered directly from
. If it returns
, tracing continues as normal. This option lets you force entry to the debugger by supplying a
as simple as
Upon entry to the traced function, the standard trace information is printed, any supplied
are executed, and then
, this option allows you to enter the debugger from
. It differs in that the debugger is entered
the function call is complete.
Upon exit from the traced function, the standard trace information is printed, and then
is evaluated. Finally, any supplied
forms are executed.
Generates a backtrace on each call to the traced function. backtrace can be any of the following values: