1 ;;;; Debugger for sb-aclrepl
3 ;;;; The documentation, which may or may not apply in its entirety at
4 ;;;; any given time, for this functionality is on the ACL website:
5 ;;;; <http://www.franz.com/support/documentation/6.2/doc/top-level.htm>.
7 (cl:in-package :sb-aclrepl)
9 ;;; FIXME: These declaims violate package locks. Are they needed at
13 sb-debug::*debug-command-level*
14 sb-debug::*real-stack-top* sb-debug::*stack-top*
15 sb-debug::*stack-top-hint* sb-debug::*current-frame*
16 sb-debug::*flush-debug-errors*))
19 (let* ((sb-debug::*debug-command-level* (1+ sb-debug::*debug-command-level*))
20 (sb-debug::*real-stack-top* (sb-di:top-frame))
21 (sb-debug::*stack-top* (or sb-debug::*stack-top-hint*
22 sb-debug::*real-stack-top*))
23 (sb-debug::*stack-top-hint* nil)
24 (sb-debug::*current-frame* sb-debug::*stack-top*)
25 (continuable (continuable-break-p)))
26 (handler-bind ((sb-di:debug-condition
28 (princ condition sb-debug::*debug-io*)
29 (sb-int:/show0 "handling d-c by THROWing DEBUG-LOOP-CATCHER")
30 (throw 'debug-loop-catcher nil))))
32 ;;(sb-debug::print-frame-call sb-debug::*current-frame* :verbosity 2)
33 (loop ;; only valid to way to exit invoke-debugger is by a restart
34 (catch 'debug-loop-catcher
35 (handler-bind ((error (lambda (condition)
36 (when sb-debug::*flush-debug-errors*
37 (clear-input *debug-io*)
39 ;; FIXME: Doing input on *DEBUG-IO*
40 ;; and output on T seems broken.
42 "~&error flushed (because ~
44 'sb-debug::*flush-debug-errors*)
45 (sb-int:/show0 "throwing DEBUG-LOOP-CATCHER")
46 (throw 'debug-loop-catcher nil)))))
48 (if (zerop *break-level*) ; restart added by SBCL
49 (repl :continuable continuable)
50 (let ((level *break-level*))
52 (abort "~@<Reduce debugger level (to break level ~W).~@:>"
54 (let ((sb-debug::*debug-restarts* (compute-restarts)))
55 (repl :continuable continuable)))))))
56 (throw 'repl-catcher (values :debug :exit))
60 (defun continuable-break-p ()
62 (restart-name (car (compute-restarts))))
66 (when (boundp 'sb-debug::*debug-loop-fun*)
67 (setq sb-debug::*debug-loop-fun* #'debug-loop))
69 (defun print-restarts ()
70 ;; (format *output* "~&Restart actions (select using :continue)~%")
71 (format *standard-output* "~&Restart actions (select using :continue)~%")
72 (let ((restarts (compute-restarts)))
73 (dotimes (i (length restarts))
74 (format *standard-output* "~&~2D: ~A~%" i (nth i restarts)))))
78 (defun debugger (condition)
80 (let ((old-hook *debugger-hook*))
82 (let ((*debugger-hook* nil))
83 (funcall old-hook condition old-hook))))
84 (%debugger condition))
87 (when (boundp 'sb-debug::*invoke-debugger-fun*)
88 (setq sb-debug::*invoke-debugger-fun* #'debugger))
91 (defun print-condition (condition)
92 (format *output* "~&Error: ~A~%" condition))
95 (defun print-condition-type (condition)
96 (format *output* "~& [Condition type: ~A]~%" (type-of condition)))
99 (defun %debugger (condition)
100 (print-condition condition)
101 (print-condition-type condition)
102 (princ #\newline *output*)
108 (defun acldebug-loop ()
109 (let ((continuable (continuable-break-p)))
111 (aclrepl :continuable t)
112 (let ((level *break-level*))
114 (abort "~@<Reduce debugger level (to debug level ~W).~@:>" level)