0.8.16.6:
[sbcl.git] / src / code / target-load.lisp
index 9254a35..87403ba 100644 (file)
 \f
 ;;;; LOAD itself
 
-;;; a helper function for LOAD: Load the stuff in a file when we have the name.
+(define-condition fasl-header-missing (invalid-fasl)
+  ((fhsss :reader invalid-fasl-fhsss :initarg :fhsss))
+  (:report
+   (lambda (condition stream)
+     (format stream "~@<File ~S has a fasl file type, but no fasl header:~%~
+                     Expected ~S, but got ~S.~:@>"
+            (invalid-fasl-stream condition)
+            (invalid-fasl-expected condition)
+            (invalid-fasl-fhsss condition)))))
+
+;;; a helper function for LOAD: Load the stuff in a file when we have
+;;; the name.
 (defun internal-load (pathname truename if-does-not-exist verbose print
                      &optional contents)
   (declare (type (member nil :error) if-does-not-exist))
                          :binary))
          (t
           (when (string= (pathname-type truename) *fasl-file-type*)
-            (error "File has a fasl file type, but no fasl file header:~%  ~S"
-                   (namestring truename)))
+            (error 'fasl-header-missing
+                   :stream (namestring truename)
+                   :fhsss first-line
+                   :expected fhsss))
           (internal-load pathname truename if-does-not-exist verbose print
                          :source))))))))
 
 ;;; possible types are ".lisp" and ".cl", and both "foo.lisp" and
 ;;; "foo.cl" exist?)
 (defun try-default-type (pathname type)
-  (let ((pn (make-pathname :type type :defaults pathname)))
+  (let ((pn (translate-logical-pathname (make-pathname :type type :defaults pathname))))
     (values pn (probe-file pn))))
 
 ;;; a helper function for LOAD: Handle the case of INTERNAL-LOAD where
             (> (file-write-date src-tn) (file-write-date obj-tn)))
        (restart-case
         (error "The object file ~A is~@
-               older than the presumed source:~%  ~A."
+                 older than the presumed source:~%  ~A."
                (namestring obj-tn)
                (namestring src-tn))
         ;; FIXME: In CMU CL one of these was a CONTINUE case.
   #!+sb-doc
   "Load the file given by FILESPEC into the Lisp environment, returning
    T on success."
-  (unless (eq external-format :default)
-    (error "Non-:DEFAULT EXTERNAL-FORMAT values are not supported."))
-
+  (declare (ignore external-format))
   (let ((*load-depth* (1+ *load-depth*))
        ;; KLUDGE: I can't find in the ANSI spec where it says that
        ;; DECLAIM/PROCLAIM of optimization policy should have file
                        '(unsigned-byte 8)))
             (load-as-fasl filespec verbose print)
             (load-as-source filespec verbose print))
-        (let (;; FIXME: MERGE-PATHNAMES doesn't work here for
-              ;; FILESPEC="TEST:Load-Test" and
-              ;; (LOGICAL-PATHNAME-TRANSLATIONS "TEST")
-              ;;   = (("**;*.*.*" "/foo/bar/**/*.*")).
-              ;; Physicalizing the pathname before merging 
-              ;; is a workaround, but the ANSI spec talks about
-              ;; MERGE-PATHNAMES accepting (and returning)
-              ;; logical pathnames, so a true fix would probably
-              ;; include fixing MERGE-PATHNAMES, then probably
-              ;; revisiting this code.
-              (ppn (physicalize-pathname (pathname filespec))))
-          (if (wild-pathname-p ppn)
-              (let ((files (directory ppn)))
-                #!+high-security
-                (when (null files)
-                  (error 'file-error :pathname filespec))
-                (dolist (file files t)
-                  (internal-load ppn
-                                 file
-                                 internal-if-does-not-exist
-                                 verbose
-                                 print)))
-              (let ((tn (probe-file ppn)))
-                (if (or tn (pathname-type ppn))
-                    (internal-load ppn
-                                   tn
-                                   internal-if-does-not-exist
-                                   verbose
-                                   print)
-                    (internal-load-default-type
-                     ppn
-                     internal-if-does-not-exist
-                     verbose
-                     print)))))))))
+        (let* ((pathname (pathname filespec))
+               (physical-pathname (translate-logical-pathname pathname))
+               (probed-file (probe-file physical-pathname)))
+          (if (or probed-file
+                  (pathname-type physical-pathname))
+              (internal-load physical-pathname
+                             probed-file
+                             internal-if-does-not-exist
+                             verbose
+                             print)
+              (internal-load-default-type pathname
+                                          internal-if-does-not-exist
+                                          verbose
+                                          print)))))))
 \f
 ;;; Load a code object. BOX-NUM objects are popped off the stack for
 ;;; the boxed storage section, then SIZE bytes of code are read in.
        (declare (fixnum i))
        (push (pop-stack) stuff))
       (let* ((dbi (car (last stuff)))  ; debug-info
-            (tto (first stuff))        ; trace-table-offset
-            ;; Old CMU CL code had maybe-we-shouldn't-load-to-dyn-space
-            ;; pussyfooting around here, apparently dating back to the
-            ;; stone age of the X86 port, but in SBCL we always load
-            ;; to dynamic space. FIXME: So now this "variable" could go
-            ;; away entirely.
-            (load-to-dynamic-space t))
+            (tto (first stuff)))       ; trace-table-offset
 
        (setq stuff (nreverse stuff))
 
                      (sb!c::debug-info-p dbi)
                      (sb!c::compiled-debug-info-name dbi)
                      tto)
-             (if load-to-dynamic-space
-                 (format t "   loading to the dynamic space~%")
-                 (format t "   loading to the static space~%")))
+              (format t "   loading to the dynamic space~%"))
 
-       (let ((code
-              (if load-to-dynamic-space
-                  (%primitive sb!c:allocate-dynamic-code-object
-                              box-num
-                              code-length)
-                  (%primitive sb!c:allocate-code-object
-                              box-num
-                              code-length)))
+       (let ((code (%primitive sb!c:allocate-code-object
+                                box-num
+                                code-length))
              (index (+ sb!vm:code-trace-table-offset-slot box-num)))
          (declare (type index index))
          (when *load-code-verbose*
 \f
 ;;;; linkage fixups
 
-;;; how we learn about assembler routines and foreign symbols at startup
+;;; how we learn about assembler routines at startup
 (defvar *!initial-assembler-routines*)
-(defvar *!initial-foreign-symbols*)
+
 (defun !loader-cold-init ()
+  (/show0 "/!loader-cold-init")
   (dolist (routine *!initial-assembler-routines*)
-    (setf (gethash (car routine) *assembler-routines*) (cdr routine)))
-  (dolist (symbol *!initial-foreign-symbols*)
-    (setf (gethash (car symbol) *static-foreign-symbols*) (cdr symbol))))
-
-(declaim (ftype (function (string) sb!vm:word)
-               foreign-symbol-address-as-integer))
-
-
-;;; SB!SYS:GET-DYNAMIC-FOREIGN-SYMBOL-ADDRESS is in foreign.lisp, on
-;;; platforms that have dynamic loading
-(defun foreign-symbol-address-as-integer (foreign-symbol)
-  (or (find-foreign-symbol-in-table  foreign-symbol *static-foreign-symbols*)
-      (sb!sys:get-dynamic-foreign-symbol-address foreign-symbol)
-      (error "unknown foreign symbol: ~S" foreign-symbol)))
-
-(defun foreign-symbol-address (symbol)
-  (int-sap (foreign-symbol-address-as-integer
-           (sb!vm:extern-alien-name symbol))))
+    (setf (gethash (car routine) *assembler-routines*) (cdr routine))))