;;;; While most of SBCL is derived from the CMU CL system, the test
;;;; files (like this one) were written from scratch after the fork
;;;; from CMU CL.
-;;;;
+;;;;
;;;; This software is in the public domain and is provided with
;;;; absolutely no warranty. See the COPYING and CREDITS files for
;;;; more information.
;;; In sbcl-0.6.10, Douglas Brebner reported that (SETF EXTERN-ALIEN)
;;; was messed up so badly that trying to execute expressions like
;;; this signalled an error.
-(setf (sb-alien:extern-alien "current_control_stack_pointer" sb-alien:unsigned)
- (sb-alien:extern-alien "current_control_stack_pointer" sb-alien:unsigned))
+(setf (sb-alien:extern-alien "thread_control_stack_size" sb-alien:unsigned)
+ (sb-alien:extern-alien "thread_control_stack_size" sb-alien:unsigned))
;;; bug 133, fixed in 0.7.0.5: Somewhere in 0.pre7.*, C void returns
;;; were broken ("unable to use values types here") when
;;; This used to break due to too eager auxiliary type twiddling in
;;; parse-alien-record-type.
(defparameter *maybe* nil)
-(defun with-alien-test-for-struct-plus-funcall ()
+(defun with-alien-test-for-struct-plus-funcall ()
(with-alien ((x (struct bar (x unsigned) (y unsigned)))
- ;; bogus definition, but we just need the symbol
- (f (function int (* (struct bar))) :extern "printf"))
+ ;; bogus definition, but we just need the symbol
+ (f (function int (* (struct bar))) :extern "printf"))
(when *maybe*
(alien-funcall f (addr x)))))
(let ((s1 (make-alien struct.1))
(s2 (make-alien struct.2)))
(setf (slot s1 'x) s2
- (slot s2 'x) s1
- (slot (slot s1 'x) 'y) 1
- (slot (slot s2 'x) 'y) 2)
+ (slot s2 'x) s1
+ (slot (slot s1 'x) 'y) 1
+ (slot (slot s2 'x) 'y) 2)
(assert (= 1 (slot (slot s1 'x) 'y)))
(assert (= 2 (slot (slot s2 'x) 'y))))
;;; "Alien bug" on sbcl-devel 2004-10-11 by Thomas F. Burdick caused
;;; by recursive struct definition.
(let ((fname "alien-bug-2004-10-11.tmp.lisp"))
- (unwind-protect
+ (unwind-protect
(progn
(with-open-file (f fname :direction :output)
(mapc (lambda (form) (print form f))
(in-package :alien-bug)
(define-alien-type objc-class
(struct objc-class
- (protocols
+ (protocols
(* (struct protocol-list
(list (array (* (struct objc-class))))))))))))
(load fname)
(deref integer-array 1)))
(assert (eql (deref enum-array 2) 'k-two))))
+;; enums used to allow values to be used only once
+;; C enums allow for multiple tags to point to the same value
+(define-alien-type enum.4
+ (enum nil (:key1 1) (:key2 2) (:keytwo 2)))
+(with-alien ((enum-array (array enum.4 3)))
+ (setf (deref enum-array 0) :key1)
+ (setf (deref enum-array 1) :key2)
+ (setf (deref enum-array 2) :keytwo)
+ (assert (and (eql (deref enum-array 1) (deref enum-array 2))
+ (eql (deref enum-array 1) :key2))))
+
;;; As reported by Baughn on #lisp, ALIEN-FUNCALL loops forever when
;;; compiled with (DEBUG 3).
(sb-kernel::values-specifier-type-cache-clear)
v)))))
(assert (typep (funcall f "HOME") '(or string null))))
+
+;;; CLH: Test for non-standard alignment in alien structs
+;;;
+(sb-alien:define-alien-type align-test-struct
+ (sb-alien:union align-test-union
+ (s (sb-alien:struct nil
+ (s1 sb-alien:unsigned-char)
+ (c1 sb-alien:unsigned-char :alignment 16)
+ (c2 sb-alien:unsigned-char :alignment 32)
+ (c3 sb-alien:unsigned-char :alignment 32)
+ (c4 sb-alien:unsigned-char :alignment 8)))
+ (u (sb-alien:array sb-alien:unsigned-char 16))))
+
+(let ((a1 (sb-alien:make-alien align-test-struct)))
+ (declare (type (sb-alien:alien (* align-test-struct)) a1))
+ (setf (sb-alien:slot (sb-alien:slot a1 's) 's1) 1)
+ (setf (sb-alien:slot (sb-alien:slot a1 's) 'c1) 21)
+ (setf (sb-alien:slot (sb-alien:slot a1 's) 'c2) 41)
+ (setf (sb-alien:slot (sb-alien:slot a1 's) 'c3) 61)
+ (setf (sb-alien:slot (sb-alien:slot a1 's) 'c4) 81)
+ (assert (equal '(1 21 41 61 81)
+ (list (sb-alien:deref (sb-alien:slot a1 'u) 0)
+ (sb-alien:deref (sb-alien:slot a1 'u) 2)
+ (sb-alien:deref (sb-alien:slot a1 'u) 4)
+ (sb-alien:deref (sb-alien:slot a1 'u) 8)
+ (sb-alien:deref (sb-alien:slot a1 'u) 9)))))
+
+(handler-bind ((compiler-note (lambda (c)
+ (error "bad note! ~A" c))))
+ (funcall (compile nil '(lambda () (sb-alien:make-alien sb-alien:int)))))
+
+;;; Test case for unwinding an alien (Win32) exception frame
+;;;
+;;; The basic theory here is that failing to honor a win32
+;;; exception frame during stack unwinding breaks the chain.
+;;; "And if / You don't love me now / You will never love me
+;;; again / I can still hear you saying / You would never break
+;;; the chain." If the chain is broken and another exception
+;;; occurs (such as an error trap caused by an OBJECT-NOT-TYPE
+;;; error), the system will kill our process. No mercy, no
+;;; appeal. So, to check that we have done our job properly, we
+;;; need some way to put an exception frame on the stack and then
+;;; unwind through it, then trigger another exception. (FUNCALL
+;;; 0) will suffice for the latter, and a simple test shows that
+;;; CallWindowProc() establishes a frame and calls a function
+;;; passed to it as an argument.
+#+win32
+(progn
+ (load-shared-object "USER32")
+ (assert
+ (eq :ok
+ (handler-case
+ (tagbody
+ (alien-funcall
+ (extern-alien "CallWindowProcW"
+ (function unsigned-int
+ (* (function int)) unsigned-int
+ unsigned-int unsigned-int unsigned-int))
+ (alien-sap
+ (sb-alien::alien-callback (function unsigned-int)
+ #'(lambda () (go up))))
+ 0 0 0 0)
+ up
+ (funcall 0))
+ (error ()
+ :ok)))))
+
+;;; Unused local alien caused a compiler error
+(with-test (:name unused-local-alien)
+ (let ((fun `(lambda ()
+ (sb-alien:with-alien ((alien1923 (array (sb-alien:unsigned 8) 72)))
+ (values)))))
+ (assert (not (funcall (compile nil fun))))))
+
+;;; Non-local exit from WITH-ALIEN caused alien stack to be leaked.
+(defvar *sap-int*)
+(defun try-to-leak-alien-stack (x)
+ (with-alien ((alien (array (sb-alien:unsigned 8) 72)))
+ (let ((sap-int (sb-sys:sap-int (alien-sap alien))))
+ (if *sap-int*
+ (assert (= *sap-int* sap-int))
+ (setf *sap-int* sap-int)))
+ (when x
+ (return-from try-to-leak-alien-stack 'going))
+ (never)))
+(with-test (:name :nlx-causes-alien-stack-leak)
+ (let ((*sap-int* nil))
+ (loop repeat 1024
+ do (try-to-leak-alien-stack t))))
+
+;;; bug 431
+(with-test (:name :alien-struct-redefinition)
+ (eval '(progn
+ (define-alien-type nil (struct mystruct (myshort short) (mychar char)))
+ (with-alien ((myst (struct mystruct)))
+ (with-alien ((mysh short (slot myst 'myshort)))
+ (assert (integerp mysh))))))
+ (let ((restarted 0))
+ (handler-bind ((error (lambda (e)
+ (let ((cont (find-restart 'continue e)))
+ (when cont
+ (incf restarted)
+ (invoke-restart cont))))))
+ (eval '(define-alien-type nil (struct mystruct (myint int) (mychar char)))))
+ (assert (= 1 restarted)))
+ (eval '(with-alien ((myst (struct mystruct)))
+ (with-alien ((myin int (slot myst 'myint)))
+ (assert (integerp myin))))))
+
+;;; void conflicted with derived type
+(declaim (inline bug-316075))
+(sb-alien:define-alien-routine bug-316075 void (result char :out))
+(with-test (:name bug-316075)
+ (handler-bind ((warning #'error))
+ (compile nil '(lambda () (multiple-value-list (bug-316075))))))
+
+
+;;; Bug #316325: "return values of alien calls assumed truncated to
+;;; correct width on x86"
+#+x86-64
+(sb-alien::define-alien-callback truncation-test (unsigned 64)
+ ((foo (unsigned 64)))
+ foo)
+#+x86
+(sb-alien::define-alien-callback truncation-test (unsigned 32)
+ ((foo (unsigned 32)))
+ foo)
+
+#+(or x86-64 x86)
+(with-test (:name bug-316325)
+ ;; This test works by defining a callback function that provides an
+ ;; identity transform over a full-width machine word, then calling
+ ;; it as if it returned a narrower type and checking to see if any
+ ;; noise in the high bits of the result are properly ignored.
+ (macrolet ((verify (type input output)
+ `(with-alien ((fun (* (function ,type
+ #+x86-64 (unsigned 64)
+ #+x86 (unsigned 32)))
+ :local (alien-sap truncation-test)))
+ (let ((result (alien-funcall fun ,input)))
+ (assert (= result ,output))))))
+ #+x86-64
+ (progn
+ (verify (unsigned 64) #x8000000000000000 #x8000000000000000)
+ (verify (signed 64) #x8000000000000000 #x-8000000000000000)
+ (verify (signed 64) #x7fffffffffffffff #x7fffffffffffffff)
+ (verify (unsigned 32) #x0000000180000042 #x80000042)
+ (verify (signed 32) #x0000000180000042 #x-7fffffbe)
+ (verify (signed 32) #xffffffff7fffffff #x7fffffff))
+ #+x86
+ (progn
+ (verify (unsigned 32) #x80000042 #x80000042)
+ (verify (signed 32) #x80000042 #x-7fffffbe)
+ (verify (signed 32) #x7fffffff #x7fffffff))
+ (verify (unsigned 16) #x00018042 #x8042)
+ (verify (signed 16) #x003f8042 #x-7fbe)
+ (verify (signed 16) #x003f7042 #x7042)))
+
;;; success
-(quit :unix-status 104)
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