-*- Mode : Lisp ; Package : CCL -*-
;;;
  Copyright 2002 - 2009 Clozure Associates
;;;
  Licensed under the Apache License , Version 2.0 ( the " License " ) ;
;;; you may not use this file except in compliance with the License.
;;; You may obtain a copy of the License at
;;;
;;;     -2.0
;;;
;;; Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an " AS IS " BASIS ,
;;; WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
;;; See the License for the specific language governing permissions and
;;; limitations under the License.

(in-package "CCL")
(defconstant image-sig0 (dpb (char-code #\O)
			     (byte 8 24)
			     (dpb (char-code #\p)
				  (byte 8 16)
				  (dpb (char-code #\e)
				       (byte 8 8)
				       (char-code #\n)))))
(defconstant image-sig1 (dpb (char-code #\M)
			     (byte 8 24)
			     (dpb (char-code #\C)
				  (byte 8 16)
				  (dpb (char-code #\L)
				       (byte 8 8)
				       (char-code #\I)))))
(defconstant image-sig2 (dpb (char-code #\m)
			     (byte 8 24)
			     (dpb (char-code #\a)
				  (byte 8 16)
				  (dpb (char-code #\g)
				       (byte 8 8)
				       (char-code #\e)))))
(defconstant image-sig3 (dpb (char-code #\F)
			     (byte 8 24)
			     (dpb (char-code #\i)
				  (byte 8 16)
				  (dpb (char-code #\l)
				       (byte 8 8)
				       (char-code #\e)))))

#|
(def-foreign-type
    openmcl-image-section-header
    (:struct nil
	     (:code :unsigned-long)
	     (:area (:* t))
	     (:memory-size :unsigned-long)
	     (:static-dnodes :unsigned-long)))
|#

(defparameter *image-section-size* ())



(defparameter *image-header-size* nil)

(defun target-setup-image-header-sizes ()
  (setq *image-header-size* (* 4 16))
  (setq *image-section-size* (* 4 (target-word-size-case
                                   (32 4)
                                   (64 8)))))

(defun image-write-fullword (w f &optional force-big-endian)
  (cond ((or force-big-endian *xload-target-big-endian*)
         (write-byte (ldb (byte 8 24) w) f)
         (write-byte (ldb (byte 8 16) w) f)
         (write-byte (ldb (byte 8 8) w) f)
         (write-byte (ldb (byte 8 0) w) f))
        (t
         (write-byte (ldb (byte 8 0) w) f)
         (write-byte (ldb (byte 8 8) w) f)
         (write-byte (ldb (byte 8 16) w) f)
         (write-byte (ldb (byte 8 24) w) f))))

(defun image-write-doubleword (dw f)
  (cond (*xload-target-big-endian*
         (image-write-fullword (ldb (byte 32 32) dw) f)
         (image-write-fullword (ldb (byte 32 0) dw) f))
        (t
         (image-write-fullword (ldb (byte 32 0) dw) f)
         (image-write-fullword (ldb (byte 32 32) dw) f))))

(defun image-write-natural (n f)
  (target-word-size-case
   (32 (image-write-fullword n f))
   (64 (image-write-doubleword n f))))

(defun image-align-output-position (f)
  (file-position f (logand (lognot 4095)
			   (+ 4095 (file-position f)))))


(defun target-image-abi-version ()
  (let* ((pkg (pkg-arg "TARGET"))
         (sym (find-symbol "*IMAGE-ABI-VERSION*" pkg)))
    (or (and sym (boundp sym) (symbol-value sym))
        (error "*IMAGE-ABI-VERSION* not defined in ~s" pkg))))
         

(defun write-image-file (pathname image-base spaces )
  (let* ((abi-version (target-image-abi-version)))
    (target-setup-image-header-sizes)
    (with-open-file (f pathname
                       :direction :output
                       :if-does-not-exist :create
                       :if-exists :supersede
                       :element-type '(unsigned-byte 8))
      (let* ((nsections (length spaces))
             (header-pos (- 4096 (+ *image-header-size*
                                    (* nsections *image-section-size*)))))
        (file-position f header-pos)
        (image-write-fullword image-sig0 f)
        (image-write-fullword image-sig1 f)
        (image-write-fullword image-sig2 f)
        (image-write-fullword image-sig3 f)
        (image-write-fullword (get-universal-time) f)
        (image-write-fullword (target-word-size-case
                               (32 *xload-image-base-address*)
                               (64 0)) f)
        (image-write-fullword (target-word-size-case
                               (32 image-base)
                               (64 0)) f)
        (image-write-fullword nsections f)
        (image-write-fullword abi-version f)
        (target-word-size-case
         (32
          (dotimes (i 2) (image-write-fullword 0 f))
        
          (image-write-fullword (backend-target-platform *target-backend*) f)
          (dotimes (i 4) (image-write-fullword 0 f)))
         (64
          (image-write-fullword 0 f)
          (image-write-fullword 0 f)
          (image-write-fullword (backend-target-platform *target-backend*) f)
          (image-write-doubleword *xload-image-base-address* f)
          (image-write-doubleword image-base f)))
        (dolist (sect spaces)
          (image-write-natural (ash (xload-space-code sect)
                                    *xload-target-fixnumshift*)
                               f)
          (image-write-natural 0 f)
          (let* ((size (xload-space-lowptr sect)))
            (image-write-natural size f)
            (image-write-natural 0 f))) ; static dnodes.
        (dolist (sect spaces)
          (image-align-output-position f)
          (stream-write-ivector f
                                (xload-space-data sect)
                                0
                                (xload-space-lowptr sect)))
        ;; Write an openmcl_image_file_trailer.
        (image-write-fullword image-sig0 f)
        (image-write-fullword image-sig1 f)
        (image-write-fullword image-sig2 f)
        (let* ((pos (+ 4 (file-position f))))
          (image-write-fullword (- header-pos pos) f))
        nil))))

      
      
    

 Package : CCL -*-



 you may not use this file except in compliance with the License.
 You may obtain a copy of the License at

     -2.0

 Unless required by applicable law or agreed to in writing, software
 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.

(def-foreign-type
    openmcl-image-section-header
    (:struct nil
	     (:code :unsigned-long)
	     (:area (:* t))
	     (:memory-size :unsigned-long)
	     (:static-dnodes :unsigned-long)))

 static dnodes.
 Write an openmcl_image_file_trailer.
  Copyright 2002 - 2009 Clozure Associates
  distributed under the License is distributed on an " AS IS " BASIS ,

(in-package "CCL")
(defconstant image-sig0 (dpb (char-code #\O)
			     (byte 8 24)
			     (dpb (char-code #\p)
				  (byte 8 16)
				  (dpb (char-code #\e)
				       (byte 8 8)
				       (char-code #\n)))))
(defconstant image-sig1 (dpb (char-code #\M)
			     (byte 8 24)
			     (dpb (char-code #\C)
				  (byte 8 16)
				  (dpb (char-code #\L)
				       (byte 8 8)
				       (char-code #\I)))))
(defconstant image-sig2 (dpb (char-code #\m)
			     (byte 8 24)
			     (dpb (char-code #\a)
				  (byte 8 16)
				  (dpb (char-code #\g)
				       (byte 8 8)
				       (char-code #\e)))))
(defconstant image-sig3 (dpb (char-code #\F)
			     (byte 8 24)
			     (dpb (char-code #\i)
				  (byte 8 16)
				  (dpb (char-code #\l)
				       (byte 8 8)
				       (char-code #\e)))))


(defparameter *image-section-size* ())



(defparameter *image-header-size* nil)

(defun target-setup-image-header-sizes ()
  (setq *image-header-size* (* 4 16))
  (setq *image-section-size* (* 4 (target-word-size-case
                                   (32 4)
                                   (64 8)))))

(defun image-write-fullword (w f &optional force-big-endian)
  (cond ((or force-big-endian *xload-target-big-endian*)
         (write-byte (ldb (byte 8 24) w) f)
         (write-byte (ldb (byte 8 16) w) f)
         (write-byte (ldb (byte 8 8) w) f)
         (write-byte (ldb (byte 8 0) w) f))
        (t
         (write-byte (ldb (byte 8 0) w) f)
         (write-byte (ldb (byte 8 8) w) f)
         (write-byte (ldb (byte 8 16) w) f)
         (write-byte (ldb (byte 8 24) w) f))))

(defun image-write-doubleword (dw f)
  (cond (*xload-target-big-endian*
         (image-write-fullword (ldb (byte 32 32) dw) f)
         (image-write-fullword (ldb (byte 32 0) dw) f))
        (t
         (image-write-fullword (ldb (byte 32 0) dw) f)
         (image-write-fullword (ldb (byte 32 32) dw) f))))

(defun image-write-natural (n f)
  (target-word-size-case
   (32 (image-write-fullword n f))
   (64 (image-write-doubleword n f))))

(defun image-align-output-position (f)
  (file-position f (logand (lognot 4095)
			   (+ 4095 (file-position f)))))


(defun target-image-abi-version ()
  (let* ((pkg (pkg-arg "TARGET"))
         (sym (find-symbol "*IMAGE-ABI-VERSION*" pkg)))
    (or (and sym (boundp sym) (symbol-value sym))
        (error "*IMAGE-ABI-VERSION* not defined in ~s" pkg))))
         

(defun write-image-file (pathname image-base spaces )
  (let* ((abi-version (target-image-abi-version)))
    (target-setup-image-header-sizes)
    (with-open-file (f pathname
                       :direction :output
                       :if-does-not-exist :create
                       :if-exists :supersede
                       :element-type '(unsigned-byte 8))
      (let* ((nsections (length spaces))
             (header-pos (- 4096 (+ *image-header-size*
                                    (* nsections *image-section-size*)))))
        (file-position f header-pos)
        (image-write-fullword image-sig0 f)
        (image-write-fullword image-sig1 f)
        (image-write-fullword image-sig2 f)
        (image-write-fullword image-sig3 f)
        (image-write-fullword (get-universal-time) f)
        (image-write-fullword (target-word-size-case
                               (32 *xload-image-base-address*)
                               (64 0)) f)
        (image-write-fullword (target-word-size-case
                               (32 image-base)
                               (64 0)) f)
        (image-write-fullword nsections f)
        (image-write-fullword abi-version f)
        (target-word-size-case
         (32
          (dotimes (i 2) (image-write-fullword 0 f))
        
          (image-write-fullword (backend-target-platform *target-backend*) f)
          (dotimes (i 4) (image-write-fullword 0 f)))
         (64
          (image-write-fullword 0 f)
          (image-write-fullword 0 f)
          (image-write-fullword (backend-target-platform *target-backend*) f)
          (image-write-doubleword *xload-image-base-address* f)
          (image-write-doubleword image-base f)))
        (dolist (sect spaces)
          (image-write-natural (ash (xload-space-code sect)
                                    *xload-target-fixnumshift*)
                               f)
          (image-write-natural 0 f)
          (let* ((size (xload-space-lowptr sect)))
            (image-write-natural size f)
        (dolist (sect spaces)
          (image-align-output-position f)
          (stream-write-ivector f
                                (xload-space-data sect)
                                0
                                (xload-space-lowptr sect)))
        (image-write-fullword image-sig0 f)
        (image-write-fullword image-sig1 f)
        (image-write-fullword image-sig2 f)
        (let* ((pos (+ 4 (file-position f))))
          (image-write-fullword (- header-pos pos) f))
        nil))))

      
      
    
