X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=tests%2Fdebug.impure.lisp;h=db05cc35a019a9f4a251e26ecd0dcf380f242fc7;hb=165f17e83d068bc971cd41f407518e600c59a905;hp=defd34696e24b7d40e3bd953ce6eaa0ebde76c2d;hpb=66187cb2c39eb11c33451c64d90a644961fd0b46;p=sbcl.git diff --git a/tests/debug.impure.lisp b/tests/debug.impure.lisp index defd346..db05cc3 100644 --- a/tests/debug.impure.lisp +++ b/tests/debug.impure.lisp @@ -1,5 +1,5 @@ ;;;; This file is for testing debugging functionality, using -;;;; test machinery which might have side-effects (e.g. +;;;; test machinery which might have side effects (e.g. ;;;; executing DEFUN). ;;;; This software is part of the SBCL system. See the README file for @@ -17,13 +17,16 @@ ;;;; Check that we get debug arglists right. +;;; FIXME: This should use some get-argslist like functionality that +;;; we actually export. +;;; ;;; Return the debug arglist of the function object FUN as a list, or ;;; punt with :UNKNOWN. (defun get-arglist (fun) (declare (type function fun)) ;; The Lisp-level type FUNCTION can conceal a multitude of sins.. (case (sb-kernel:widetag-of fun) - ((#.sb-vm:simple-fun-header-widetag #.sb-vm:closure-fun-header-widetag) + (#.sb-vm:simple-fun-header-widetag (sb-kernel:%simple-fun-arglist fun)) (#.sb-vm:closure-header-widetag (get-arglist (sb-kernel:%closure-fun fun))) @@ -57,3 +60,327 @@ (assert (symbolp control-sym)) (assert (eql &rest-sym '&rest)) (assert (symbolp format-args-sym))) + +;;; Check for backtraces generally being correct. Ensure that the +;;; actual backtrace finishes (doesn't signal any errors on its own), +;;; and that it contains the frames we expect, doesn't contain any +;;; "bogus stack frame"s, and contains the appropriate toplevel call +;;; and hasn't been cut off anywhere. +(defun verify-backtrace (test-function frame-specs &key (allow-stunted nil)) + (labels ((args-equal (want real) + (cond ((eq '&rest (car want)) + t) + ((endp want) + (endp real)) + ((or (eq '? (car want)) (equal (car want) (car real))) + (args-equal (cdr want) (cdr real))) + (t + nil)))) + (let ((result nil)) + (block outer-handler + (handler-bind + ((error (lambda (condition) + ;; find the part of the backtrace we're interested in + (let ((backtrace (progn + ;; (backtrace 13) + (member (caar frame-specs) + (sb-debug:backtrace-as-list) + :key #'car + :test #'equal)))) + + (setf result condition) + + (unless backtrace + (print :missing-backtrace) + (setf result nil)) + + ;; check that we have all the frames we wanted + (mapcar + (lambda (spec frame) + (unless (or (not spec) + (and (equal (car spec) (car frame)) + (args-equal (cdr spec) + (cdr frame)))) + (print (list :mismatch spec frame)) + (setf result nil))) + frame-specs + backtrace) + + ;; Make sure the backtrace isn't stunted in + ;; any way. (Depends on running in the main + ;; thread.) + (let ((end (last backtrace 2))) + (unless (equal (caar end) + (if *show-entry-point-details* + '(sb-c::tl-xep sb-impl::toplevel-init) + 'sb-impl::toplevel-init)) + (print (list :backtrace-stunted (caar end))) + (setf result nil))) + (return-from outer-handler))))) + (funcall test-function))) + result))) + +(defvar *undefined-function-frame* + ;; bug 353 + '(#+(or x86 x86-64) "bogus stack frame" + #-(or x86 x86-64) "undefined function")) + +#-(or alpha) ; bug 346 +;;; Test for "undefined function" (undefined_tramp) working properly. +;;; Try it with and without tail call elimination, since they can have +;;; different effects. (Specifically, if undefined_tramp is incorrect +;;; a stunted stack can result from the tail call variant.) +(flet ((optimized () + (declare (optimize (speed 2) (debug 1))) ; tail call elimination + (#:undefined-function 42)) + (not-optimized () + (declare (optimize (speed 1) (debug 2))) ; no tail call elimination + (#:undefined-function 42)) + (test (fun) + (declare (optimize (speed 1) (debug 2))) ; no tail call elimination + (funcall fun))) + + (assert (verify-backtrace + (lambda () (test #'optimized)) + (list *undefined-function-frame* + (list '(flet test) #'optimized)))) + + ;; bug 353: This test fails at least most of the time for x86/linux + ;; ca. 0.8.20.16. -- WHN + #-(and x86 linux) + (assert (verify-backtrace + (lambda () (test #'not-optimized)) + (list *undefined-function-frame* + (list '(flet not-optimized)) + (list '(flet test) #'not-optimized))))) + +#-alpha ; bug 346 +;;; Division by zero was a common error on PPC. It depended on the +;;; return function either being before INTEGER-/-INTEGER in memory, +;;; or more than MOST-POSITIVE-FIXNUM bytes ahead. It also depends on +;;; INTEGER-/-INTEGER calling SIGNED-TRUNCATE. I believe Raymond Toy +;;; says that the Sparc backend (at least for CMUCL) inlines this, so +;;; if SBCL does the same this test is probably not good for the +;;; Sparc. +;;; +;;; Disabling tail call elimination on this will probably ensure that +;;; the return value (to the flet or the enclosing top level form) is +;;; more than MOST-POSITIVE-FIXNUM with the current spaces on OS X. +;;; Enabling it might catch other problems, so do it anyway. +(flet ((optimized () + (declare (optimize (speed 2) (debug 1))) ; tail call elimination + (/ 42 0)) + (not-optimized () + (declare (optimize (speed 1) (debug 2))) ; no tail call elimination + (/ 42 0)) + (test (fun) + (declare (optimize (speed 1) (debug 2))) ; no tail call elimination + (funcall fun))) + (assert (verify-backtrace (lambda () (test #'optimized)) + (list '(/ 42 &rest) + (list '(flet test) #'optimized)))) + (assert (verify-backtrace (lambda () (test #'not-optimized)) + (list '(/ 42 &rest) + '((flet not-optimized)) + (list '(flet test) #'not-optimized))))) + +#-(or alpha (and x86 linux)) ; bug 61 +(progn + (defun throw-test () + (throw 'no-such-tag t)) + (assert (verify-backtrace #'throw-test '((throw-test))))) + +;;; test entry point handling in backtraces + +(defun oops () + (error "oops")) + +(defmacro defbt (n ll &body body) + `(progn + ;; normal debug info + (defun ,(intern (format nil "BT.~A.1" n)) ,ll + ,@body) + ;; no arguments saved + (defun ,(intern (format nil "BT.~A.2" n)) ,ll + (declare (optimize (debug 1) (speed 3))) + ,@body) + ;; no lambda-list saved + (defun ,(intern (format nil "BT.~A.3" n)) ,ll + (declare (optimize (debug 0))) + ,@body))) + +(defbt 1 (&key key) + (list key)) + +(defbt 2 (x) + (list x)) + +(defbt 3 (&key (key (oops))) + (list key)) + +;;; ERROR instead of OOPS so that tail call elimination doesn't happen +(defbt 4 (&optional opt) + (list (error "error"))) + +(defbt 5 (&optional (opt (oops))) + (list opt)) + +#-(and x86 linux) +(macrolet ((with-details (bool &body body) + `(let ((sb-debug:*show-entry-point-details* ,bool)) + ,@body))) + + ;; TL-XEP + (print :tl-xep) + (with-details t + (assert (verify-backtrace #'namestring + '(((sb-c::tl-xep namestring) 0 ?))))) + (with-details nil + (assert (verify-backtrace #'namestring + '((namestring))))) + + + ;; &MORE-PROCESSOR + (with-details t + (assert (verify-backtrace (lambda () (bt.1.1 :key)) + '(((sb-c::&more-processor bt.1.1) &rest)))) + (assert (verify-backtrace (lambda () (bt.1.2 :key)) + '(((sb-c::&more-processor bt.1.2) &rest)))) + (assert (verify-backtrace (lambda () (bt.1.3 :key)) + '(((sb-c::&more-processor bt.1.3) &rest))))) + (with-details nil + (assert (verify-backtrace (lambda () (bt.1.1 :key)) + '((bt.1.1 :key)))) + (assert (verify-backtrace (lambda () (bt.1.2 :key)) + '((bt.1.2 &rest)))) + (assert (verify-backtrace (lambda () (bt.1.3 :key)) + '((bt.1.3 &rest))))) + + ;; XEP + (print :xep) + (with-details t + (assert (verify-backtrace #'bt.2.1 + '(((sb-c::xep bt.2.1) 0 ?)))) + (assert (verify-backtrace #'bt.2.2 + '(((sb-c::xep bt.2.2) &rest)))) + (assert (verify-backtrace #'bt.2.3 + '(((sb-c::xep bt.2.3) &rest))))) + (with-details nil + (assert (verify-backtrace #'bt.2.1 + '((bt.2.1)))) + (assert (verify-backtrace #'bt.2.2 + '((bt.2.2 &rest)))) + (assert (verify-backtrace #'bt.2.3 + '((bt.2.3 &rest))))) + + ;; VARARGS-ENTRY + (print :varargs-entry) + (with-details t + (assert (verify-backtrace #'bt.3.1 + '(((sb-c::varargs-entry bt.3.1) :key nil)))) + (assert (verify-backtrace #'bt.3.2 + '(((sb-c::varargs-entry bt.3.2) :key ?)))) + (assert (verify-backtrace #'bt.3.3 + '(((sb-c::varargs-entry bt.3.3) &rest))))) + (with-details nil + (assert (verify-backtrace #'bt.3.1 + '((bt.3.1 :key nil)))) + (assert (verify-backtrace #'bt.3.2 + '((bt.3.2 :key ?)))) + (assert (verify-backtrace #'bt.3.3 + '((bt.3.3 &rest))))) + + ;; HAIRY-ARG-PROCESSOR + (print :hairy-args-processor) + (with-details t + (assert (verify-backtrace #'bt.4.1 + '(((sb-c::hairy-arg-processor bt.4.1) ?)))) + (assert (verify-backtrace #'bt.4.2 + '(((sb-c::hairy-arg-processor bt.4.2) ?)))) + (assert (verify-backtrace #'bt.4.3 + '(((sb-c::hairy-arg-processor bt.4.3) &rest))))) + (with-details nil + (assert (verify-backtrace #'bt.4.1 + '((bt.4.1 ?)))) + (assert (verify-backtrace #'bt.4.2 + '((bt.4.2 ?)))) + (assert (verify-backtrace #'bt.4.3 + '((bt.4.3 &rest))))) + + ;; &OPTIONAL-PROCESSOR + (print :optional-processor) + (with-details t + (assert (verify-backtrace #'bt.5.1 + '(((sb-c::&optional-processor bt.5.1))))) + (assert (verify-backtrace #'bt.5.2 + '(((sb-c::&optional-processor bt.5.2) &rest)))) + (assert (verify-backtrace #'bt.5.3 + '(((sb-c::&optional-processor bt.5.3) &rest))))) + (with-details nil + (assert (verify-backtrace #'bt.5.1 + '((bt.5.1)))) + (assert (verify-backtrace #'bt.5.2 + '((bt.5.2 &rest)))) + (assert (verify-backtrace #'bt.5.3 + '((bt.5.3 &rest)))))) + +;;;; test TRACE + +(defun trace-this () + 'ok) + +(let ((out (with-output-to-string (*trace-output*) + (trace trace-this) + (assert (eq 'ok (trace-this))) + (untrace)))) + (assert (search "TRACE-THIS" out)) + (assert (search "returned OK" out))) + +#-(and ppc darwin) +;;; bug 379 +(let ((out (with-output-to-string (*trace-output*) + (trace trace-this :encapsulate nil) + (assert (eq 'ok (trace-this))) + (untrace)))) + (assert (search "TRACE-THIS" out)) + (assert (search "returned OK" out))) + +;;;; test infinite error protection + +(defmacro nest-errors (n-levels error-form) + (if (< 0 n-levels) + `(handler-bind ((error (lambda (condition) + (declare (ignore condition)) + ,error-form))) + (nest-errors ,(1- n-levels) ,error-form)) + error-form)) + +(defun erroring-debugger-hook (condition old-debugger-hook) + (let ((*debugger-hook* old-debugger-hook)) + (format t "recursive condition: ~A~%" condition) (force-output) + (error "recursive condition: ~A" condition))) + +(defun test-inifinite-error-protection () + ;; after 50 successful throws to SB-IMPL::TOPLEVEL-CATCHER sbcl used + ;; to halt, it produces so much garbage that's hard to suppress that + ;; it is tested only once + (let ((*debugger-hook* #'erroring-debugger-hook)) + (loop repeat 1 do + (let ((error-counter 0) + (*terminal-io* (make-broadcast-stream))) + (assert + (not (eq + :normal-exit + (catch 'sb-impl::toplevel-catcher + (nest-errors 20 (error "infinite error ~s" + (incf error-counter))) + :normal-exit)))))))) + +(test-inifinite-error-protection) + +#+sb-thread +(let ((thread (sb-thread:make-thread #'test-inifinite-error-protection))) + (loop while (sb-thread:thread-alive-p thread))) + +;;; success +(quit :unix-status 104)