;;; Load a text file.
(defun load-as-source (stream verbose print)
- (do-load-verbose stream verbose)
+ (maybe-announce-load stream verbose)
(do ((sexpr (read stream nil *eof-object*)
(read stream nil *eof-object*)))
((eq sexpr *eof-object*)
\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.
+;;;
+;;; FIXME: with the addition of the EXTERNAL-FORMAT argument, this
+;;; interface has become truly sucky.
(defun internal-load (pathname truename if-does-not-exist verbose print
- &optional contents)
+ &optional contents external-format)
(declare (type (member nil :error) if-does-not-exist))
(unless truename
(if if-does-not-exist
(:source
(with-open-file (stream truename
:direction :input
- :if-does-not-exist if-does-not-exist)
+ :if-does-not-exist if-does-not-exist
+ :external-format external-format)
(load-as-source stream verbose print)))
(:binary
(with-open-file (stream truename
:element-type '(unsigned-byte 8))
(load-as-fasl stream verbose print)))
(t
- (let ((first-line (with-open-file (stream truename :direction :input)
- (read-line stream nil)))
- (fhsss *fasl-header-string-start-string*))
+ (let* ((fhsss *fasl-header-string-start-string*)
+ (first-line (make-array (length fhsss)
+ :element-type '(unsigned-byte 8)))
+ (read-length
+ (with-open-file (stream truename
+ :direction :input
+ :element-type '(unsigned-byte 8))
+ (read-sequence first-line stream))))
(cond
- ((and first-line
- (>= (length (the simple-string first-line))
- (length fhsss))
- (string= first-line fhsss :end1 (length fhsss)))
- (internal-load pathname truename if-does-not-exist verbose print
- :binary))
- (t
- (when (string= (pathname-type truename) *backend-fasl-file-type*)
- (error "File has a fasl file type, but no fasl file header:~% ~S"
- (namestring truename)))
- (internal-load pathname truename if-does-not-exist verbose print
- :source))))))))
+ ((and (= read-length (length fhsss))
+ (do ((i 0 (1+ i)))
+ ((= i read-length) t)
+ (when (/= (char-code (aref fhsss i)) (aref first-line i))
+ (return))))
+ (internal-load pathname truename if-does-not-exist verbose print
+ :binary))
+ (t
+ (when (string= (pathname-type truename) *fasl-file-type*)
+ (error 'fasl-header-missing
+ :stream (namestring truename)
+ :fhsss first-line
+ :expected fhsss))
+ (internal-load pathname truename if-does-not-exist verbose print
+ :source external-format))))))))
;;; a helper function for INTERNAL-LOAD-DEFAULT-TYPE: Try the default
;;; file type TYPE and return (VALUES PATHNAME TRUENAME) for a match,
;;; 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
;;; the file does not exist.
-(defun internal-load-default-type (pathname if-does-not-exist verbose print)
+(defun internal-load-default-type
+ (pathname if-does-not-exist verbose print external-format)
(declare (type (member nil :error) if-does-not-exist))
(multiple-value-bind (src-pn src-tn)
(try-default-type pathname *load-source-default-type*)
(multiple-value-bind (obj-pn obj-tn)
- (try-default-type pathname *backend-fasl-file-type*)
+ (try-default-type pathname *fasl-file-type*)
(cond
((and obj-tn
src-tn
(> (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.
- ;; There's not one now. I don't remember how restart-case
- ;; works very well, make sure that it doesn't do anything
- ;; weird when we don't specify the CONTINUE case.
(source () :report "load source file"
(internal-load src-pn src-tn if-does-not-exist verbose print
- :source))
+ :source external-format))
(object () :report "load object file"
(internal-load src-pn obj-tn if-does-not-exist verbose print
:binary))))
(obj-tn
(internal-load obj-pn obj-tn if-does-not-exist verbose print :binary))
(src-pn
- (internal-load src-pn src-tn if-does-not-exist verbose print :source))
+ (internal-load src-pn src-tn if-does-not-exist
+ verbose print :source external-format))
(t
- (internal-load pathname nil if-does-not-exist verbose print nil))))))
+ (internal-load pathname nil if-does-not-exist
+ verbose print nil external-format))))))
;;; This function mainly sets up special bindings and then calls
;;; sub-functions. We conditionally bind the switches with PROGV so
#!+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."))
-
(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 nil external-format)
+ (internal-load-default-type
+ pathname internal-if-does-not-exist
+ verbose print external-format)))))))
\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 box-num code-length))
(with-fop-stack t
(let ((code (%primitive sb!c:allocate-code-object box-num code-length))
- (index (+ #!-gengc sb!vm:code-trace-table-offset-slot
- #!+gengc sb!vm:code-debug-info-slot
- box-num)))
+ (index (+ sb!vm:code-trace-table-offset-slot box-num)))
(declare (type index index))
- #!-gengc (setf (%code-debug-info code) (pop-stack))
+ (setf (%code-debug-info code) (pop-stack))
(dotimes (i box-num)
(declare (fixnum i))
(setf (code-header-ref code (decf index)) (pop-stack)))
(read-n-bytes *fasl-input-stream*
(code-instructions code)
0
- #!-gengc code-length
- #!+gengc (* code-length sb!vm:word-bytes)))
+ code-length))
code)))
;;; Moving native code during a GC or purify is not so trivial on the
;;; all these code objects. After a purify these fixups can be
;;; dropped. In CMU CL, this policy was enabled with
;;; *ENABLE-DYNAMIC-SPACE-CODE*; in SBCL it's always used.
-;;;
-;;; A little analysis of the header information is used to determine
-;;; if a code object is byte compiled, or native code.
#!+x86
(defun load-code (box-num code-length)
(declare (fixnum box-num code-length))
(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))
- ;; Check that tto is always a list for byte-compiled
- ;; code. Could be used an alternate check.
- (when (and (typep tto 'list)
- (not (and (sb!c::debug-info-p dbi)
- (not (sb!c::compiled-debug-info-p dbi)))))
- ;; FIXME: What is this for?
- (format t "* tto list on non-bc code: ~S~% ~S ~S~%"
- stuff dbi tto))
-
;; FIXME: *LOAD-CODE-VERBOSE* should probably be #!+SB-SHOW.
(when *load-code-verbose*
(format t "stuff: ~S~%" 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))))