1 ;;;; This file is for testing debugging functionality, using
2 ;;;; test machinery which might have side effects (e.g.
5 ;;;; This software is part of the SBCL system. See the README file for
8 ;;;; While most of SBCL is derived from the CMU CL system, the test
9 ;;;; files (like this one) were written from scratch after the fork
12 ;;;; This software is in the public domain and is provided with
13 ;;;; absolutely no warranty. See the COPYING and CREDITS files for
14 ;;;; more information.
16 (cl:in-package :cl-user)
18 ;;; The debugger doesn't have any native knowledge of the interpreter
19 (when (eq sb-ext:*evaluator-mode* :interpret)
20 (sb-ext:quit :unix-status 104))
23 ;;;; Check that we get debug arglists right.
25 ;;; FIXME: This should use some get-argslist like functionality that
26 ;;; we actually export.
28 ;;; Return the debug arglist of the function object FUN as a list, or
29 ;;; punt with :UNKNOWN.
30 (defun get-arglist (fun)
31 (declare (type function fun))
32 ;; The Lisp-level type FUNCTION can conceal a multitude of sins..
33 (case (sb-kernel:widetag-of fun)
34 (#.sb-vm:simple-fun-header-widetag
35 (sb-kernel:%simple-fun-arglist fun))
36 (#.sb-vm:closure-header-widetag (get-arglist
37 (sb-kernel:%closure-fun fun)))
38 ;; In code/describe.lisp, ll. 227 (%describe-fun), we use a scheme
39 ;; like above, and it seems to work. -- MNA 2001-06-12
41 ;; (There might be other cases with arglist info also.
42 ;; SIMPLE-FUN-HEADER-WIDETAG and CLOSURE-HEADER-WIDETAG just
43 ;; happen to be the two case that I had my nose rubbed in when
44 ;; debugging a GC problem caused by applying %SIMPLE-FUN-ARGLIST to
45 ;; a closure. -- WHN 2001-06-05)
48 (if (typep fun 'sb-eval::interpreted-function)
49 (sb-eval::interpreted-function-lambda-list fun)
54 (defun zoop (zeep &key beep)
56 (assert (equal (get-arglist #'zoop) '(zeep &key beep)))
58 ;;; Check some predefined functions too.
60 ;;; (We don't know exactly what the arguments are, e.g. the first
61 ;;; argument of PRINT might be SB-IMPL::OBJECT or SB-KERNEL::OBJ or
62 ;;; whatever. But we do know the general structure that a correct
63 ;;; answer should have, so we can safely do a lot of checks.)
64 (destructuring-bind (object-sym &optional-sym stream-sym) (get-arglist #'print)
65 (assert (symbolp object-sym))
66 (assert (eql &optional-sym '&optional))
67 (assert (symbolp stream-sym)))
68 (destructuring-bind (dest-sym control-sym &rest-sym format-args-sym)
69 (get-arglist #'format)
70 (assert (symbolp dest-sym))
71 (assert (symbolp control-sym))
72 (assert (eql &rest-sym '&rest))
73 (assert (symbolp format-args-sym)))
75 ;;; Check for backtraces generally being correct. Ensure that the
76 ;;; actual backtrace finishes (doesn't signal any errors on its own),
77 ;;; and that it contains the frames we expect, doesn't contain any
78 ;;; "bogus stack frame"s, and contains the appropriate toplevel call
79 ;;; and hasn't been cut off anywhere.
80 (defun verify-backtrace (test-function frame-specs &key (allow-stunted nil))
81 (labels ((args-equal (want real)
82 (cond ((eq '&rest (car want))
86 ((or (eq '? (car want)) (equal (car want) (car real)))
87 (args-equal (cdr want) (cdr real)))
93 ((error (lambda (condition)
94 ;; find the part of the backtrace we're interested in
95 (let* ((full-backtrace (sb-debug:backtrace-as-list))
96 (backtrace (member (caar frame-specs) full-backtrace
100 (setf result condition)
103 (format t "~&//~S not in backtrace:~% ~S~%"
108 ;; check that we have all the frames we wanted
111 (unless (or (not spec)
112 (and (equal (car spec) (car frame))
113 (args-equal (cdr spec)
115 (print (list :wanted spec :got frame))
120 ;; Make sure the backtrace isn't stunted in
121 ;; any way. (Depends on running in the main
122 ;; thread.) FIXME: On Windows we get two
123 ;; extra foreign frames below regular frames.
124 (unless (find '(sb-impl::toplevel-init) backtrace
126 (print (list :backtrace-stunted backtrace))
128 (return-from outer-handler)))))
129 (funcall test-function)))
132 (defvar *undefined-function-frame*
134 '(#+(or x86 x86-64) "bogus stack frame"
135 #-(or x86 x86-64) "undefined function"))
137 ;;; Test for "undefined function" (undefined_tramp) working properly.
138 ;;; Try it with and without tail call elimination, since they can have
139 ;;; different effects. (Specifically, if undefined_tramp is incorrect
140 ;;; a stunted stack can result from the tail call variant.)
142 (declare (optimize (speed 2) (debug 1))) ; tail call elimination
143 (#:undefined-function 42))
145 (declare (optimize (speed 1) (debug 2))) ; no tail call elimination
146 (#:undefined-function 42))
148 (declare (optimize (speed 1) (debug 2))) ; no tail call elimination
151 (with-test (:name (:undefined-function :bug-346)
152 :fails-on '(or :alpha :ppc :sparc :mips
153 (and :x86-64 :freebsd)))
154 (assert (verify-backtrace
155 (lambda () (test #'optimized))
156 (list *undefined-function-frame*
157 (list '(flet test) #'optimized)))))
159 ;; bug 353: This test fails at least most of the time for x86/linux
160 ;; ca. 0.8.20.16. -- WHN
161 (with-test (:name (:undefined-function :bug-353)
162 ;; This used to have fewer :fails-on features pre-0.9.16.38,
163 ;; but it turns out that the bug was just being masked by
164 ;; the presence of the IR1 stepper instrumentation (and
165 ;; is thus again failing now that the instrumentation is
167 :fails-on '(or :alpha :mips :ppc))
168 (assert (verify-backtrace
169 (lambda () (test #'not-optimized))
170 (list *undefined-function-frame*
171 (list '(flet not-optimized))
172 (list '(flet test) #'not-optimized))))))
174 ;;; Division by zero was a common error on PPC. It depended on the
175 ;;; return function either being before INTEGER-/-INTEGER in memory,
176 ;;; or more than MOST-POSITIVE-FIXNUM bytes ahead. It also depends on
177 ;;; INTEGER-/-INTEGER calling SIGNED-TRUNCATE. I believe Raymond Toy
178 ;;; says that the Sparc backend (at least for CMUCL) inlines this, so
179 ;;; if SBCL does the same this test is probably not good for the
182 ;;; Disabling tail call elimination on this will probably ensure that
183 ;;; the return value (to the flet or the enclosing top level form) is
184 ;;; more than MOST-POSITIVE-FIXNUM with the current spaces on OS X.
185 ;;; Enabling it might catch other problems, so do it anyway.
187 (declare (optimize (speed 2) (debug 1))) ; tail call elimination
190 (declare (optimize (speed 1) (debug 2))) ; no tail call elimination
193 (declare (optimize (speed 1) (debug 2))) ; no tail call elimination
195 (with-test (:name (:divide-by-zero :bug-346)
196 :fails-on :alpha) ; bug 346
197 (assert (verify-backtrace (lambda () (test #'optimized))
199 (list '(flet test) #'optimized)))))
200 (with-test (:name (:divide-by-zero :bug-356)
201 :fails-on :alpha) ; bug 356
202 (assert (verify-backtrace (lambda () (test #'not-optimized))
204 '((flet not-optimized))
205 (list '(flet test) #'not-optimized))))))
207 (with-test (:name (:throw :no-such-tag)
214 (throw 'no-such-tag t))
215 (assert (verify-backtrace #'throw-test '((throw-test))))))
217 ;;; test entry point handling in backtraces
222 (defmacro defbt (n ll &body body)
225 (defun ,(intern (format nil "BT.~A.1" n)) ,ll
227 ;; no arguments saved
228 (defun ,(intern (format nil "BT.~A.2" n)) ,ll
229 (declare (optimize (debug 1) (speed 3)))
231 ;; no lambda-list saved
232 (defun ,(intern (format nil "BT.~A.3" n)) ,ll
233 (declare (optimize (debug 0)))
242 (defbt 3 (&key (key (oops)))
245 ;;; ERROR instead of OOPS so that tail call elimination doesn't happen
246 (defbt 4 (&optional opt)
247 (list (error "error")))
249 (defbt 5 (&optional (opt (oops)))
252 (defmacro with-details (bool &body body)
253 `(let ((sb-debug:*show-entry-point-details* ,bool))
257 (error "XEPs in backtraces: ~S" x))
259 (with-test (:name :bug-354)
261 (assert (not (verify-backtrace (lambda () (bug-354 354))
263 ((sb-c::tl-xep bug-354) &rest))))))
264 (assert (verify-backtrace (lambda () (bug-354 354)) '((bug-354 354)))))
266 ;;; FIXME: This test really should be broken into smaller pieces
267 (with-test (:name (:backtrace :tl-xep))
269 (assert (verify-backtrace #'namestring
270 '(((sb-c::tl-xep namestring) 0 ?)))))
272 (assert (verify-backtrace #'namestring
275 (with-test (:name (:backtrace :more-processor))
277 (assert (verify-backtrace (lambda () (bt.1.1 :key))
278 '(((sb-c::&more-processor bt.1.1) &rest))))
279 (assert (verify-backtrace (lambda () (bt.1.2 :key))
280 '(((sb-c::&more-processor bt.1.2) &rest))))
281 (assert (verify-backtrace (lambda () (bt.1.3 :key))
282 '(((sb-c::&more-processor bt.1.3) &rest)))))
284 (assert (verify-backtrace (lambda () (bt.1.1 :key))
286 (assert (verify-backtrace (lambda () (bt.1.2 :key))
288 (assert (verify-backtrace (lambda () (bt.1.3 :key))
289 '((bt.1.3 &rest))))))
291 (with-test (:name (:backtrace :xep))
293 (assert (verify-backtrace #'bt.2.1
294 '(((sb-c::xep bt.2.1) 0 ?))))
295 (assert (verify-backtrace #'bt.2.2
296 '(((sb-c::xep bt.2.2) &rest))))
297 (assert (verify-backtrace #'bt.2.3
298 '(((sb-c::xep bt.2.3) &rest)))))
300 (assert (verify-backtrace #'bt.2.1
302 (assert (verify-backtrace #'bt.2.2
304 (assert (verify-backtrace #'bt.2.3
305 '((bt.2.3 &rest))))))
307 (with-test (:name (:backtrace :varargs-entry))
309 (assert (verify-backtrace #'bt.3.1
310 '(((sb-c::varargs-entry bt.3.1) :key nil))))
311 (assert (verify-backtrace #'bt.3.2
312 '(((sb-c::varargs-entry bt.3.2) :key ?))))
313 (assert (verify-backtrace #'bt.3.3
314 '(((sb-c::varargs-entry bt.3.3) &rest)))))
316 (assert (verify-backtrace #'bt.3.1
317 '((bt.3.1 :key nil))))
318 (assert (verify-backtrace #'bt.3.2
320 (assert (verify-backtrace #'bt.3.3
321 '((bt.3.3 &rest))))))
323 (with-test (:name (:backtrace :hairy-args-processor))
325 (assert (verify-backtrace #'bt.4.1
326 '(((sb-c::hairy-arg-processor bt.4.1) ?))))
327 (assert (verify-backtrace #'bt.4.2
328 '(((sb-c::hairy-arg-processor bt.4.2) ?))))
329 (assert (verify-backtrace #'bt.4.3
330 '(((sb-c::hairy-arg-processor bt.4.3) &rest)))))
332 (assert (verify-backtrace #'bt.4.1
334 (assert (verify-backtrace #'bt.4.2
336 (assert (verify-backtrace #'bt.4.3
337 '((bt.4.3 &rest))))))
340 (with-test (:name (:backtrace :optional-processor))
342 (assert (verify-backtrace #'bt.5.1
343 '(((sb-c::&optional-processor bt.5.1)))))
344 (assert (verify-backtrace #'bt.5.2
345 '(((sb-c::&optional-processor bt.5.2) &rest))))
346 (assert (verify-backtrace #'bt.5.3
347 '(((sb-c::&optional-processor bt.5.3) &rest)))))
349 (assert (verify-backtrace #'bt.5.1
351 (assert (verify-backtrace #'bt.5.2
353 (assert (verify-backtrace #'bt.5.3
354 '((bt.5.3 &rest))))))
356 (write-line "//compile nil")
357 (defvar *compile-nil-error* (compile nil '(lambda (x) (cons (when x (error "oops")) nil))))
358 (defvar *compile-nil-non-tc* (compile nil '(lambda (y) (cons (funcall *compile-nil-error* y) nil))))
359 (assert (verify-backtrace (lambda () (funcall *compile-nil-non-tc* 13))
363 (with-test (:name :clos-slot-typecheckfun-named)
367 (eval `(locally (declare (optimize safety))
368 (defclass clos-typecheck-test ()
369 ((slot :type fixnum)))
370 (setf (slot-value (make-instance 'clos-typecheck-test) 'slot) t))))
371 '(((sb-pcl::slot-typecheck fixnum) t)))))
373 (with-test (:name :clos-emf-named)
378 (defmethod clos-emf-named-test ((x symbol)) x)
379 (defmethod clos-emf-named-test :before (x) (assert x))
380 (clos-emf-named-test nil))))
381 '(((sb-pcl::emf clos-emf-named-test) ? ? nil)))))
383 (with-test (:name :bug-310173)
385 (let* ((names '(a b))
386 (req (loop repeat n collect (pop names))))
388 `(lambda (,@req &rest rest)
389 (let ((* *)) ; no tail-call
390 (apply '/ ,@req rest)))))))
392 (verify-backtrace (lambda ()
393 (funcall (make-fun 0) 10 11 0))
394 '((sb-kernel:two-arg-/ 10/11 0)
396 ((lambda (&rest rest)) 10 11 0))))
398 (verify-backtrace (lambda ()
399 (funcall (make-fun 1) 10 11 0))
400 '((sb-kernel:two-arg-/ 10/11 0)
402 ((lambda (a &rest rest)) 10 11 0))))
404 (verify-backtrace (lambda ()
405 (funcall (make-fun 2) 10 11 0))
406 '((sb-kernel:two-arg-/ 10/11 0)
408 ((lambda (a b &rest rest)) 10 11 0))))))
415 (defun trace-fact (n)
418 (* n (trace-fact (1- n)))))
420 (let ((out (with-output-to-string (*trace-output*)
422 (assert (eq 'ok (trace-this)))
424 (assert (search "TRACE-THIS" out))
425 (assert (search "returned OK" out)))
428 ;;; This is not a WITH-TEST :FAILS-ON PPC DARWIN since there are
429 ;;; suspicions that the breakpoint trace might corrupt the whole image
430 ;;; on that platform.
431 (with-test (:name (trace :encapsulate nil)
432 :fails-on '(or (and :ppc (not :linux)) :sparc :mips)
433 :broken-on '(or :darwin :sunos))
434 (let ((out (with-output-to-string (*trace-output*)
435 (trace trace-this :encapsulate nil)
436 (assert (eq 'ok (trace-this)))
438 (assert (search "TRACE-THIS" out))
439 (assert (search "returned OK" out))))
441 (with-test (:name (trace-recursive :encapsulate nil)
442 :fails-on '(or (and :ppc (not :linux)) :sparc :mips :sunos)
443 :broken-on '(or :darwin (and :x86 :sunos)))
444 (let ((out (with-output-to-string (*trace-output*)
445 (trace trace-fact :encapsulate nil)
446 (assert (= 120 (trace-fact 5)))
448 (assert (search "TRACE-FACT" out))
449 (assert (search "returned 1" out))
450 (assert (search "returned 120" out))))
452 (defun trace-and-fmakunbound-this (x)
455 (with-test (:name :bug-667657)
456 (trace trace-and-fmakunbound-this)
457 (fmakunbound 'trace-and-fmakunbound-this)
459 (assert (not (trace))))
461 (with-test (:name :bug-414)
462 (handler-bind ((warning #'error))
463 (load (compile-file "bug-414.lisp"))
464 (disassemble 'bug-414)))
466 (with-test (:name :bug-310175)
467 (let ((dx-arg (cons t t)))
468 (declare (dynamic-extent dx-arg))
469 (flet ((dx-arg-backtrace (x)
470 (declare (optimize (debug 2)))
471 (prog1 (sb-debug:backtrace-as-list 10)
472 (assert (sb-debug::stack-allocated-p x)))))
473 (declare (notinline dx-arg-backtrace))
474 (assert (member-if (lambda (frame)
476 (equal '(flet dx-arg-backtrace) (car frame))
477 (notany #'sb-debug::stack-allocated-p (cdr frame))))
478 (dx-arg-backtrace dx-arg))))))
480 (with-test (:name :bug-795245)
488 (sb-debug:backtrace 100 (make-broadcast-stream))
490 (throw 'done :error))
492 (throw 'done :ok))))))
493 (apply '/= nil 1 2 nil))))))
495 ;;;; test infinite error protection
497 (defmacro nest-errors (n-levels error-form)
499 `(handler-bind ((error (lambda (condition)
500 (declare (ignore condition))
502 (nest-errors ,(1- n-levels) ,error-form))
505 (defun erroring-debugger-hook (condition old-debugger-hook)
506 (let ((*debugger-hook* old-debugger-hook))
507 (format t "recursive condition: ~A~%" condition) (force-output)
508 (error "recursive condition: ~A" condition)))
510 (defun test-inifinite-error-protection ()
511 ;; after 50 successful throws to SB-IMPL::TOPLEVEL-CATCHER sbcl used
512 ;; to halt, it produces so much garbage that's hard to suppress that
513 ;; it is tested only once
514 (write-line "--HARMLESS BUT ALARMING BACKTRACE COMING UP--")
515 (let ((*debugger-hook* #'erroring-debugger-hook))
517 (let ((error-counter 0)
518 (*terminal-io* (make-broadcast-stream)))
522 (catch 'sb-impl::toplevel-catcher
523 (nest-errors 20 (error "infinite error ~s"
524 (incf error-counter)))
526 (write-line "--END OF H-B-A-B--"))
530 (test-inifinite-error-protection)
533 (let ((thread (sb-thread:make-thread #'test-inifinite-error-protection)))
534 (loop while (sb-thread:thread-alive-p thread)))
538 (write-line "/debug.impure.lisp done")