Function: SB-DEBUG:LIST-BACKTRACE

Returns a list describing the call stack. Each frame is represented by a sublist:

( …args…)

where the name describes the function responsible for the frame. The name might not be bound to the actual function object. Unavailable arguments are represented by dummy objects that print as #. Objects with dynamic-extent allocation by the current thread are represented by substitutes to avoid references to them from leaking outside their legal extent.

COUNT is the number of frames to backtrace, defaulting to BACKTRACE-FRAME-COUNT.

START is the number of the frame the backtrace should start from.

FROM specifies the frame relative to which the frames are numbered. Possible values are an explicit SB-DI:FRAME object, and the keywords :CURRENT-FRAME, :INTERRUPTED-FRAME, and :DEBUGGER-FRAME. Default is :DEBUGGER-FRAME.

:CURRENT-FRAME specifies the caller of LIST-BACKTRACE.

:INTERRUPTED-FRAME specifies the first interrupted frame on the stack (typically the frame where the error occured, as opposed to error handling frames) if any, otherwise behaving as :CURRENT-FRAME.

:DEBUGGER-FRAME specifies the currently debugged frame when inside the debugger, and behaves as :INTERRUPTED-FRAME outside the debugger.

METHOD-FRAME-STYLE (defaulting to METHOD-FRAME-STYLE), determines how frames corresponding to method functions are printed. Possible values are :MINIMAL, :NORMAL, and :FULL. See METHOD-FRAME-STYLE for more information.

Lambda list

(&key count sb-debug::start sb-debug::from sb-debug::method-frame-style)