tests/alien.impure.lisp

   1 ;;;; This file is for compiler tests which have side effects (e.g.
   2 ;;;; executing DEFUN) but which don't need any special side-effecting
   3 ;;;; environmental stuff (e.g. DECLAIM of particular optimization
   4 ;;;; settings). Similar tests which *do* expect special settings may
   5 ;;;; be in files compiler-1.impure.lisp, compiler-2.impure.lisp, etc.
   6
   7 ;;;; This software is part of the SBCL system. See the README file for
   8 ;;;; more information.
   9 ;;;;
  10 ;;;; While most of SBCL is derived from the CMU CL system, the test
  11 ;;;; files (like this one) were written from scratch after the fork
  12 ;;;; from CMU CL.
  13 ;;;;
  14 ;;;; This software is in the public domain and is provided with
  15 ;;;; absolutely no warranty. See the COPYING and CREDITS files for
  16 ;;;; more information.
  17
  18 (cl:in-package :cl-user)
  19
  20 ;;; In sbcl-0.6.10, Douglas Brebner reported that (SETF EXTERN-ALIEN)
  21 ;;; was messed up so badly that trying to execute expressions like
  22 ;;; this signalled an error.
  23 (setf (sb-alien:extern-alien "current_control_stack_pointer" sb-alien:unsigned)
  24       (sb-alien:extern-alien "current_control_stack_pointer" sb-alien:unsigned))
  25
  26 ;;; bug 133, fixed in 0.7.0.5: Somewhere in 0.pre7.*, C void returns
  27 ;;; were broken ("unable to use values types here") when
  28 ;;; auto-PROCLAIM-of-return-value was added to DEFINE-ALIEN-ROUTINE.
  29 (sb-alien:define-alien-routine ("free" free) void (ptr (* t) :in))
  30
  31 ;;; Types of alien functions were being incorrectly DECLAIMED when
  32 ;;; docstrings were included in the definition until sbcl-0.7.6.15.
  33 (sb-alien:define-alien-routine ("getenv" ftype-correctness) c-string
  34   "docstring"
  35   (name c-string))
  36
  37 (multiple-value-bind (function warningsp failurep)
  38     (compile nil '(lambda () (ftype-correctness)))
  39   (assert warningsp))
  40
  41 (multiple-value-bind (function warningsp failurep)
  42     (compile nil '(lambda () (ftype-correctness "FOO")))
  43   (assert (not warningsp)))
  44
  45 (multiple-value-bind (function warningsp failurep)
  46     (compile nil '(lambda () (ftype-correctness "FOO" "BAR")))
  47   (assert warningsp))
  48
  49 ;;; This used to break due to too eager auxiliary type twiddling in
  50 ;;; parse-alien-record-type.
  51 (defparameter *maybe* nil)
  52 (defun with-alien-test-for-struct-plus-funcall ()
  53   (with-alien ((x (struct bar (x unsigned) (y unsigned)))
  54                ;; bogus definition, but we just need the symbol
  55                (f (function int (* (struct bar))) :extern "printf"))
  56     (when *maybe*
  57       (alien-funcall f (addr x)))))
  58
  59 ;;; Mutually referent structures
  60 (define-alien-type struct.1 (struct struct.1 (x (* (struct struct.2))) (y int)))
  61 (define-alien-type struct.2 (struct struct.2 (x (* (struct struct.1))) (y int)))
  62 (let ((s1 (make-alien struct.1))
  63       (s2 (make-alien struct.2)))
  64   (setf (slot s1 'x) s2
  65         (slot s2 'x) s1
  66         (slot (slot s1 'x) 'y) 1
  67         (slot (slot s2 'x) 'y) 2)
  68   (assert (= 1 (slot (slot s1 'x) 'y)))
  69   (assert (= 2 (slot (slot s2 'x) 'y))))
  70
  71 ;;; "Alien bug" on sbcl-devel 2004-10-11 by Thomas F. Burdick caused
  72 ;;; by recursive struct definition.
  73 (let ((fname "alien-bug-2004-10-11.tmp.lisp"))
  74   (unwind-protect
  75        (progn
  76          (with-open-file (f fname :direction :output)
  77            (mapc (lambda (form) (print form f))
  78                  '((defpackage :alien-bug
  79                      (:use :cl :sb-alien))
  80                    (in-package :alien-bug)
  81                    (define-alien-type objc-class
  82                        (struct objc-class
  83                         (protocols
  84                          (* (struct protocol-list
  85                                     (list (array (* (struct objc-class))))))))))))
  86            (load fname)
  87            (load fname)
  88            (load (compile-file fname))
  89            (load (compile-file fname)))
  90     (delete-file (compile-file-pathname fname))
  91     (delete-file fname)))
  92
  93 ;;; enumerations with only one enum resulted in division-by-zero
  94 ;;; reported on sbcl-help 2004-11-16 by John Morrison
  95 (define-alien-type enum.1 (enum nil (:val0 0)))
  96
  97 (define-alien-type enum.2 (enum nil (zero 0) (one 1) (two 2) (three 3)
  98                                     (four 4) (five 5) (six 6) (seven 7)
  99                                     (eight 8) (nine 9)))
 100 (with-alien ((integer-array (array int 3)))
 101   (let ((enum-array (cast integer-array (array enum.2 3))))
 102     (setf (deref enum-array 0) 'three
 103           (deref enum-array 1) 'four)
 104     (setf (deref integer-array 2) (+ (deref integer-array 0)
 105                                      (deref integer-array 1)))
 106     (assert (eql (deref enum-array 2) 'seven))))
 107 ;; The code that is used for mapping from integers to symbols depends on the
 108 ;; `density' of the set of used integers, so test with a sparse set as well.
 109 (define-alien-type enum.3 (enum nil (zero 0) (one 1) (k-one 1001) (k-two 1002)))
 110 (with-alien ((integer-array (array int 3)))
 111   (let ((enum-array (cast integer-array (array enum.3 3))))
 112     (setf (deref enum-array 0) 'one
 113           (deref enum-array 1) 'k-one)
 114     (setf (deref integer-array 2) (+ (deref integer-array 0)
 115                                      (deref integer-array 1)))
 116     (assert (eql (deref enum-array 2) 'k-two))))
 117
 118 ;;; As reported by Baughn on #lisp, ALIEN-FUNCALL loops forever when
 119 ;;; compiled with (DEBUG 3).
 120 (sb-kernel::values-specifier-type-cache-clear)
 121 (proclaim '(optimize (debug 3)))
 122 (let ((f (compile nil '(lambda (v)
 123                         (sb-alien:alien-funcall (sb-alien:extern-alien "getenv"
 124                                                  (function (c-string) c-string))
 125                          v)))))
 126   (assert (typep (funcall f "HOME") '(or string null))))
 127
 128 ;;; success
 129 (quit :unix-status 104)