;;;; This file is for compiler tests which have side effects (e.g. ;;;; executing DEFUN) but which don't need any special side-effecting ;;;; environmental stuff (e.g. DECLAIM of particular optimization ;;;; settings). Similar tests which *do* expect special settings may ;;;; be in files compiler-1.impure.lisp, compiler-2.impure.lisp, etc. ;;;; This software is part of the SBCL system. See the README file for ;;;; more information. ;;;; ;;;; 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. (cl:in-package :cl-user) ;;; 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 "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 ;;; auto-PROCLAIM-of-return-value was added to DEFINE-ALIEN-ROUTINE. (sb-alien:define-alien-routine ("free" free) void (ptr (* t) :in)) ;;; Types of alien functions were being incorrectly DECLAIMED when ;;; docstrings were included in the definition until sbcl-0.7.6.15. (sb-alien:define-alien-routine ("getenv" ftype-correctness) c-string "docstring" (name c-string)) (multiple-value-bind (function warningsp failurep) (compile nil '(lambda () (ftype-correctness))) (assert warningsp)) (multiple-value-bind (function warningsp failurep) (compile nil '(lambda () (ftype-correctness "FOO"))) (assert (not warningsp))) (multiple-value-bind (function warningsp failurep) (compile nil '(lambda () (ftype-correctness "FOO" "BAR"))) (assert warningsp)) ;;; 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 () (with-alien ((x (struct bar (x unsigned) (y unsigned))) ;; bogus definition, but we just need the symbol (f (function int (* (struct bar))) :extern "printf")) (when *maybe* (alien-funcall f (addr x))))) ;;; Mutually referent structures (define-alien-type struct.1 (struct struct.1 (x (* (struct struct.2))) (y int))) (define-alien-type struct.2 (struct struct.2 (x (* (struct struct.1))) (y int))) (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) (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 (progn (with-open-file (f fname :direction :output) (mapc (lambda (form) (print form f)) '((defpackage :alien-bug (:use :cl :sb-alien)) (in-package :alien-bug) (define-alien-type objc-class (struct objc-class (protocols (* (struct protocol-list (list (array (* (struct objc-class)))))))))))) (load fname) (load fname) (load (compile-file fname)) (load (compile-file fname))) (delete-file (compile-file-pathname fname)) (delete-file fname))) ;;; enumerations with only one enum resulted in division-by-zero ;;; reported on sbcl-help 2004-11-16 by John Morrison (define-alien-type enum.1 (enum nil (:val0 0))) (define-alien-type enum.2 (enum nil (zero 0) (one 1) (two 2) (three 3) (four 4) (five 5) (six 6) (seven 7) (eight 8) (nine 9))) (with-alien ((integer-array (array int 3))) (let ((enum-array (cast integer-array (array enum.2 3)))) (setf (deref enum-array 0) 'three (deref enum-array 1) 'four) (setf (deref integer-array 2) (+ (deref integer-array 0) (deref integer-array 1))) (assert (eql (deref enum-array 2) 'seven)))) ;; The code that is used for mapping from integers to symbols depends on the ;; `density' of the set of used integers, so test with a sparse set as well. (define-alien-type enum.3 (enum nil (zero 0) (one 1) (k-one 1001) (k-two 1002))) (with-alien ((integer-array (array int 3))) (let ((enum-array (cast integer-array (array enum.3 3)))) (setf (deref enum-array 0) 'one (deref enum-array 1) 'k-one) (setf (deref integer-array 2) (+ (deref integer-array 0) (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) (proclaim '(optimize (debug 3))) (let ((f (compile nil '(lambda (v) (sb-alien:alien-funcall (sb-alien:extern-alien "getenv" (function (c-string) c-string)) 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))) (with-test (:name :bug-654485) ;; DEBUG 2 used to prevent let-conversion of the open-coded ALIEN-FUNCALL body, ;; which in turn led the dreaded %SAP-ALIEN note. (handler-case (compile nil `(lambda (program argv) (declare (optimize (debug 2))) (with-alien ((sys-execv1 (function int c-string (* c-string)) :extern "execv")) (values (alien-funcall sys-execv1 program argv))))) (compiler-note (n) (error n)))) ;;; success