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							|  | @ -1,6 +1,12 @@ | |||
| #!/usr/local/bin/scsh \ | ||||
| -lm /usr/local/lib/scsh/vm/ps-interface.scm -lm /usr/local/lib/scsh/vm/interfaces.scm -lm /usr/local/lib/scsh/vm/package-defs.scm -lm /usr/local/lib/scsh/vm/s48-package-defs.scm -m heap -l /usr/local/lib/scsh/scsh/static-heap.scm -dm -m scsh-static-heap -e scsh-static-linker -s  | ||||
| !# | ||||
| ;;; Package for Static heaps for the Scheme Shell | ||||
| ;;; Copyright (c) 1995 by Brian D. Carlstrom. | ||||
| 
 | ||||
| ;;; based on Scheme48 implementation. | ||||
| ;;; Copyright (c) 1993, 1994 by Richard Kelsey and Jonathan Rees. | ||||
| 
 | ||||
| (define-structure heap-extra (export newspace-begin | ||||
| 			      heap-pointer | ||||
| 			      header-a-units | ||||
|  | @ -18,4 +24,637 @@ | |||
| 	tables | ||||
| 	defrec-package | ||||
| 	scsh) | ||||
|   (files (scsh static1))) | ||||
|   (begin | ||||
|     ;;-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- | ||||
|     (define-record heap | ||||
|       (length    0) | ||||
|       (objects '()) | ||||
|       ) | ||||
|     ;;-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- | ||||
|     (define (scsh-do-it infile tempdir outfile cc-command ar-command) | ||||
|       (let* ((temp-dir (format #f "~a/scsh~s" tempdir (pid))) | ||||
| 	     (prefix (string-append temp-dir "/static")) | ||||
| 	     (start (read-heap-image infile))) | ||||
| 	(receive (pure impure reloc externs) | ||||
| 	    (create-heaps-and-tables) | ||||
| 	  (if (file-exists? temp-dir) | ||||
| 	      (if (file-directory? temp-dir) | ||||
| 		  (with-cwd temp-dir | ||||
| 			    (map delete-file (directory-files temp-dir #t))) | ||||
| 		  (delete-file temp-dir))) | ||||
| 	  (create-directory temp-dir #o755 #t) | ||||
| 	  (with-cwd temp-dir | ||||
| 		    (write-c-header-file pure impure externs infile outfile prefix) | ||||
| 		    (write-c-image pure impure reloc externs prefix) | ||||
| 		    (write-main-c-file start reloc prefix) | ||||
| 		    (compile-c-files cc-command prefix)) | ||||
| 	  (archive-files ar-command outfile prefix) | ||||
| 	  ))) | ||||
| 
 | ||||
| 
 | ||||
|     (define debug #f) | ||||
| 
 | ||||
|     (define (vm-string->string x) | ||||
|       (cond ((vm-string? x) | ||||
| 	     (let ((len (vm-string-length x))) | ||||
| 	       (let loop ((i 0)  | ||||
| 			  (l '())) | ||||
| 		 (cond ((= i len)  | ||||
| 			(list->string (reverse l))) | ||||
| 		       (else | ||||
| 			(loop (+ i 1) (cons (vm-string-ref x i) l))))))) | ||||
| 	    (else | ||||
| 	     (message x " is not a vm-string")))) | ||||
| 
 | ||||
|     (define (read-heap-image infile) | ||||
|       (let ((bytes (file-info:size (file-info infile)))) | ||||
| 	(init (inexact->exact (floor (* 1.1 bytes))) infile))) | ||||
| 					; XXX need little extra space for find-all-xs | ||||
| 
 | ||||
|     (define (create-heaps-and-tables) | ||||
|       (let* ((n       (nchunks)) | ||||
| 	     (  pure  (make-vector n)) | ||||
| 	     (impure  (make-vector n)) | ||||
| 	     (reloc   (make-vector n)) | ||||
| 	     (externs (make-table   ))) | ||||
| 	;; initialize to blanks | ||||
| 	(let loop ((i 0)) | ||||
| 	  (cond ((not (= i n)) | ||||
| 		 (vector-set!   pure i (make-heap )) | ||||
| 		 (vector-set! impure i (make-heap )) | ||||
| 		 (vector-set!  reloc i (make-table)) | ||||
| 		 (loop (+ i 1))))) | ||||
| 	(scsh-for-each-stored-object | ||||
| 	 (lambda (chunk) | ||||
| 	   (format #t "Reading chunk number ~s" chunk)) | ||||
| 	 (lambda (chunk x len) | ||||
| 	   (if debug | ||||
| 	       (write x)) | ||||
| 	   (let* ((mutable (mutable? x)) | ||||
| 		  (heap (vector-ref (if mutable impure pure) chunk))) | ||||
| 	     (table-set! (vector-ref reloc chunk) x (heap:length heap)) | ||||
| 	     (set-heap:objects heap (cons x (heap:objects heap))) | ||||
| 	     (set-heap:length  heap (+ len  (heap:length  heap))) | ||||
| 	     (cond (debug | ||||
| 		    (display (if mutable "   mutable " " immutable ")) | ||||
| 		    (cond ((d-vector? x)  (display " d-vector")) | ||||
| 			  ((vm-string? x) (display "vm-string")) | ||||
| 			  (else           (display " b-vector"))) | ||||
| 		    (let ((m (heap:length (vector-ref impure chunk))) | ||||
| 			  (i (heap:length (vector-ref   pure chunk)))) | ||||
| 		      (message " m" m "+i" i "=" (+ m i)))))) | ||||
| 	   (if (= (header-type (stob-header x)) (enum stob external)) | ||||
| 	       (table-set! externs  | ||||
| 			   (external-value x)  | ||||
| 			   (vm-string->string (external-name x)))) | ||||
| 	   ) | ||||
| 	 (lambda (chunk)  | ||||
| 	   (newline))) | ||||
| 	(let loop ((i 0)) | ||||
| 	  (cond ((not (= i n)) | ||||
| 		 (let ((p (vector-ref   pure i)) | ||||
| 		       (i (vector-ref impure i))) | ||||
| 		   (set-heap:objects p (reverse (heap:objects p))) | ||||
| 		   (set-heap:objects i (reverse (heap:objects i)))) | ||||
| 		 (loop (+ i 1))))) | ||||
| 	(values pure impure reloc externs))) | ||||
| 
 | ||||
|     (define (write-c-header-file pure impure externs infile outfile prefix) | ||||
|       (message "Writing header file") | ||||
|       (call-with-output-file (string-append prefix ".h") | ||||
| 	(lambda (port) | ||||
| 	  (format port "/* Static Heap File Automatically Generated~%") | ||||
| 	  (format port " * by   scsh/static.scm~%") | ||||
| 	  (format port " * from ~a~%" infile) | ||||
| 	  (format port " * to   ~a~%" outfile) | ||||
| 	  (format port " */~%") | ||||
| 	  (let ((n (nchunks))) | ||||
| 	    (do ((i 0 (+ i 1))) | ||||
| 		((= i n)) | ||||
| 	      (format port "extern const long p~s[~s];~%" i  | ||||
| 		      (quotient (heap:length (vector-ref   pure i)) 4))) | ||||
| 	    (do ((i 0 (+ i 1))) | ||||
| 		((= i n)) | ||||
| 	      (format port "extern long i~s[~s];~%" i | ||||
| 		      (quotient (heap:length (vector-ref impure i)) 4)))) | ||||
| 	  (table-walk | ||||
| 	   (lambda (address name) | ||||
| 	     (format port "const extern ~a();~%" name)) | ||||
| 	   externs) | ||||
| 	  ))) | ||||
| 
 | ||||
|     (define (d-vector-for-each proc d-vector) | ||||
|       (do ((i 0 (+ i 1))) | ||||
| 	  ((>= i (d-vector-length d-vector))) | ||||
| 	(proc (d-vector-ref d-vector i)))) | ||||
| 
 | ||||
|     (define (write-c-image pure impure reloc externs prefix) | ||||
|       (message "Writing   pure c files") | ||||
|       (scsh-write-c-image   pure "p" "const " reloc externs prefix) | ||||
|       (message "Writing impure c files") | ||||
|       (scsh-write-c-image impure "i" ""       reloc externs prefix)) | ||||
| 
 | ||||
|     (define (scsh-write-c-image heap name const reloc externs prefix) | ||||
|       (let ((n (nchunks))) | ||||
| 	(let chunk-loop ((c 0)) | ||||
| 	  (cond ((not (= c n)) | ||||
| 		 (format #t "Writing ~a-~a~s.c~%" prefix name c) | ||||
| 		 (call-with-output-file  | ||||
| 		     (format #f "~a-~a~s.c" prefix name c) | ||||
| 		   (lambda (port)	      | ||||
| 		     (format port "#include \"~a.h\"~%" prefix) | ||||
| 		     (format port "~a long ~a~s[]={~%" const name c) | ||||
| 		     (let ((heap (vector-ref heap c))) | ||||
| 		       (let heap-loop ((l (heap:objects heap))) | ||||
| 			 (cond ((not (null? l)) | ||||
| 				(scsh-emit-initializer (car l) reloc externs port) | ||||
| 				(heap-loop (cdr l)))))) | ||||
| 		     (display "};" port) | ||||
| 		     (newline port))) | ||||
| 		 (chunk-loop (+ 1 c))))))) | ||||
| 
 | ||||
|     (define (write-main-c-file start reloc prefix) | ||||
|       (let ((n (nchunks))) | ||||
| 	(call-with-output-file (string-append prefix ".c") | ||||
| 	  (lambda (port) | ||||
| 	    (format port "#include \"~a.h\"~%" prefix) | ||||
| 	    (format port "const long p_count = ~s;~%" n) | ||||
| 	    (format port "const long i_count = ~s;~%" n) | ||||
| 	     | ||||
| 	    (format port "const long * const p_areas[~s] = {" n) | ||||
| 	    (do ((i 0 (+ i 1))) | ||||
| 		((= i n)) | ||||
| 	      (format port "(const long *) &p~s, " i)) | ||||
| 	    (format port "};~%") | ||||
| 
 | ||||
| 	    (format port "long * const i_areas[~s] = {" n) | ||||
| 	    (do ((i 0 (+ i 1))) | ||||
| 		((= i n)) | ||||
| 	      (format port "(long *) &i~s, " i)) | ||||
| 	    (format port "};~%") | ||||
| 
 | ||||
| 	    (format port "const long p_sizes[~s] = {" n) | ||||
| 	    (do ((i 0 (+ i 1))) | ||||
| 		((= i n)) | ||||
| 	      (format port "sizeof(p~s), " i)) | ||||
| 	    (format port "};~%") | ||||
| 
 | ||||
| 	    (format port "const long i_sizes[~s] = {" n) | ||||
| 	    (do ((i 0 (+ i 1))) | ||||
| 		((= i n)) | ||||
| 	      (format port "sizeof(i~s), " i)) | ||||
| 	    (format port "};~%") | ||||
| 
 | ||||
| 	    (display "const long entry = " port) | ||||
| 	    (scsh-emit-descriptor start reloc port) | ||||
| 	    (write-char #\; port) | ||||
| 	    (newline port))))) | ||||
| 
 | ||||
|     (define (compile-c-files cc-command prefix) | ||||
|       (let ((n (nchunks)) | ||||
| 	    (cc (line->list cc-command))) | ||||
| 	(message "Compiling main C file") | ||||
| 	(run (,@(append cc (list (format #f "~a.c" prefix))))) | ||||
| 	(do ((i 0 (+ i 1))) | ||||
| 	    ((= i n)) | ||||
| 	  (message "Compiling C file for   pure chunk " i) | ||||
| 	  (run (,@(append cc  | ||||
| 			  (list (format #f "~a-p~s.c" prefix i))))) | ||||
| 	  (message "Compiling C file for impure chunk " i) | ||||
| 	  (run (,@(append cc  | ||||
| 			  (list (format #f "~a-i~s.c" prefix i)))))))) | ||||
| 
 | ||||
|     (define (archive-files ar-command outfile prefix) | ||||
|       (let ((n (nchunks)) | ||||
| 	    (ar (line->list ar-command))) | ||||
| 	(message "Archiving object files") | ||||
| 	(run (,@(append  | ||||
| 		 ar | ||||
| 		 (cons  | ||||
| 		  outfile | ||||
| 		  (let loop ((i 0) | ||||
| 			     (l '())) | ||||
| 		    (cond ((not (= i n)) | ||||
| 			   (loop (+ i 1) | ||||
| 				 (cons  | ||||
| 				  (format #f "~a-i~s.o" prefix i) | ||||
| 				  (cons | ||||
| 				   (format #f "~a-p~s.o" prefix i) | ||||
| 				   l)))) | ||||
| 			  (else  | ||||
| 			   (reverse 		 | ||||
| 			    (cons  | ||||
| 			     (string-append prefix ".o") | ||||
| 			     l))))))))))) | ||||
| 
 | ||||
|     (define (scsh-emit-initializer x reloc externs port) | ||||
|       (write-hex port (stob-header x)) | ||||
|       (cond ((d-vector? x) | ||||
| 	     (scsh-emit-d-vector-initializer x reloc port)) | ||||
| 	    ((vm-string? x) | ||||
| 	     (scsh-emit-vm-string-initializer x port)) | ||||
| 	    (else | ||||
| 	     (scsh-emit-b-vector-initializer x reloc externs port))) | ||||
|       (if *comments?* | ||||
| 	  (begin (display " /* " port) | ||||
| 		 (writex x port) | ||||
| 		 (display " */" port))) | ||||
|       (newline port)) | ||||
| 
 | ||||
| 
 | ||||
|     (define (scsh-emit-d-vector-initializer x reloc port) | ||||
|       (let ((len (d-vector-length x))) | ||||
| 	(do ((i 0 (+ i 1))) | ||||
| 	    ((= i len)) | ||||
| 	  (scsh-emit-descriptor (d-vector-ref x i) reloc port) | ||||
| 	  (write-char #\, port)))) | ||||
| 
 | ||||
|     (define (scsh-emit-vm-string-initializer x port) | ||||
|       (let* ((len (vm-string-length x))	; end is jawilson style hack | ||||
| 	     (end (- (cells->bytes (bytes->cells (+ len 1))) 4))) | ||||
| 	(do ((i 0 (+ i 4))) | ||||
| 	    ((= i end)  | ||||
| 	     (case (- len end) | ||||
| 	       ((0) | ||||
| 		(write-hex port 0)) | ||||
| 	       ((1) | ||||
| 		(write-hex | ||||
| 		 port | ||||
| 		 (net-to-host-32 (arithmetic-shift  | ||||
| 				  (char->ascii (vm-string-ref x i)) 24)))) | ||||
| 	       ((2) | ||||
| 		(write-hex  | ||||
| 		 port | ||||
| 		 (net-to-host-32  | ||||
| 		  (bitwise-ior | ||||
| 		   (arithmetic-shift | ||||
| 		    (char->ascii (vm-string-ref x i))       24) | ||||
| 		   (arithmetic-shift | ||||
| 		    (char->ascii (vm-string-ref x (+ i 1))) 16))))) | ||||
| 	       ((3) | ||||
| 		(write-hex | ||||
| 		 port | ||||
| 		 (net-to-host-32 | ||||
| 		  (bitwise-ior | ||||
| 		   (bitwise-ior | ||||
| 		    (arithmetic-shift  | ||||
| 		     (char->ascii (vm-string-ref x i))       24) | ||||
| 		    (arithmetic-shift  | ||||
| 		     (char->ascii (vm-string-ref x (+ i 1))) 16)) | ||||
| 		   (arithmetic-shift   | ||||
| 		    (char->ascii (vm-string-ref x (+ i 2)))  8))))))) | ||||
| 	  (write-hex port | ||||
| 		     (net-to-host-32 (bitwise-ior | ||||
| 				      (bitwise-ior | ||||
| 				       (arithmetic-shift  | ||||
| 					(char->ascii (vm-string-ref x i))       24) | ||||
| 				       (arithmetic-shift  | ||||
| 					(char->ascii (vm-string-ref x (+ i 1))) 16)) | ||||
| 				      (bitwise-ior | ||||
| 				       (arithmetic-shift  | ||||
| 					(char->ascii (vm-string-ref x (+ i 2)))  8) | ||||
| 				       (char->ascii  (vm-string-ref x (+ i 3)))))) | ||||
| 		     )))) | ||||
| 
 | ||||
|     (define (scsh-emit-b-vector-initializer x reloc externs port) | ||||
|       (cond ((and (code-vector? x) | ||||
| 		  (table-ref externs x)) => | ||||
| 		  (lambda (name) | ||||
| 		    (format port "(long) *~a," name))) | ||||
| 	    (else  | ||||
| 	     (let* ((len (b-vector-length x)) ;end is jawilson style hack | ||||
| 		    (end (- (cells->bytes (bytes->cells (+ len 1))) 4))) | ||||
| 	       (do ((i 0 (+ i 4))) | ||||
| 		   ((= i end) | ||||
| 		    (case (- len end) | ||||
| 		      ((1) | ||||
| 		       (write-hex | ||||
| 			port | ||||
| 			(net-to-host-32 (arithmetic-shift (b-vector-ref x i) 24)))) | ||||
| 		      ((2) | ||||
| 		       (write-hex  | ||||
| 			port | ||||
| 			(net-to-host-32 | ||||
| 			 (bitwise-ior | ||||
| 			  (arithmetic-shift (b-vector-ref x i)       24) | ||||
| 			  (arithmetic-shift (b-vector-ref x (+ i 1)) 16))))) | ||||
| 		      ((3) | ||||
| 		       (write-hex | ||||
| 			port | ||||
| 			(net-to-host-32 | ||||
| 			 (bitwise-ior | ||||
| 			  (bitwise-ior | ||||
| 			   (arithmetic-shift (b-vector-ref x i)       24) | ||||
| 			   (arithmetic-shift (b-vector-ref x (+ i 1)) 16)) | ||||
| 			  (arithmetic-shift  (b-vector-ref x (+ i 2))  8))) | ||||
| 			)))) | ||||
| 		 (write-hex  | ||||
| 		  port | ||||
| 		  (net-to-host-32 (bitwise-ior | ||||
| 				   (bitwise-ior | ||||
| 				    (arithmetic-shift (b-vector-ref x i)       24) | ||||
| 				    (arithmetic-shift (b-vector-ref x (+ i 1)) 16)) | ||||
| 				   (bitwise-ior | ||||
| 				    (arithmetic-shift (b-vector-ref x (+ i 2))  8) | ||||
| 				    (b-vector-ref x (+ i 3)))))))) | ||||
| 	     ))) | ||||
| 
 | ||||
|     (define (scsh-emit-descriptor x reloc port) | ||||
|       (if (stob? x) | ||||
| 	  (let ((n (chunk-number x))) | ||||
| 	    (display "(long)(&" port) | ||||
| 	    (if (immutable? x) | ||||
| 		(display "p" port) | ||||
| 		(display "i" port)) | ||||
| 	    (display n port) | ||||
| 	    (display "[" port) | ||||
| 	    (display (quotient (table-ref (vector-ref reloc n) x) 4) port) | ||||
| 	    (display "])+7" port)) | ||||
| 	  (format port  | ||||
| 		  (if (negative? x) "-0x~a" "0x~a") | ||||
| 		  (number->string (abs x) 16)))) | ||||
| 
 | ||||
|     (define (scsh-for-each-stored-object chunk-start proc chunk-end) | ||||
|       (let ((limit (heap-pointer))) | ||||
| 	(let chunk-loop ((addr (newspace-begin)) | ||||
| 			 (i 0) | ||||
| 			 (chunk (+ (newspace-begin) *chunk-size*))) | ||||
| 	  (if (addr< addr limit) | ||||
| 	      (begin (chunk-start i) | ||||
| 		     (let loop ((addr addr)) | ||||
| 		       (if (and (addr< addr limit) | ||||
| 				(addr< addr chunk)) | ||||
| 			   (let* ((d   (fetch addr)) | ||||
| 				  (len (addr1+ (header-a-units d)))) | ||||
| 			     (if (not (header? d)) | ||||
| 				 (warn "heap is in an inconsistent state" d)) | ||||
| 			     (proc i (address->stob-descriptor (addr1+ addr)) len) | ||||
| 			     (loop (addr+ addr len))) | ||||
| 			   (begin (chunk-end i) | ||||
| 				  (chunk-loop addr | ||||
| 					      (+ i 1) | ||||
| 					      (+ chunk *chunk-size*)))))))))) | ||||
| 
 | ||||
|     (define (write-hex port x)  | ||||
|       (format port  | ||||
| 	      (if (negative? x) "-0x~a," "0x~a,") | ||||
| 	      (number->string (abs x) 16))) | ||||
| 
 | ||||
|     ;; takes a string and break it into a list at whitespace | ||||
|     ;; rewrite using scsh stuff? | ||||
|     (define (line->list line) | ||||
|       (let ((len (string-length line))) | ||||
| 	(let loop ((start 0) | ||||
| 		   (end 0) | ||||
| 		   (l '())) | ||||
| 	  (cond ((>= end len) | ||||
| 		 (if (= start end) | ||||
| 		     l | ||||
| 		     (append l (list (substring line start end))))) | ||||
| 		((and (= start end) | ||||
| 		      (or (char=? (string-ref line start) (ascii->char 32)) | ||||
| 			  (char=? (string-ref line start) (ascii->char 9)))) | ||||
| 		 (loop (+ 1 start)  | ||||
| 		       (+ 1 end)  | ||||
| 		       l)) | ||||
| 		((or (char=? (string-ref line end) (ascii->char 32)) | ||||
| 		     (char=? (string-ref line end) (ascii->char 9))) | ||||
| 		 (loop (+ 1 end)  | ||||
| 		       (+ 1 end)  | ||||
| 		       (append l (list (substring line start end))))) | ||||
| 		((< end len) | ||||
| 		 (loop start  | ||||
| 		       (+ 1 end) | ||||
| 		       l)) | ||||
| 		(else (error "unexpected case in line->list")))))) | ||||
| 
 | ||||
| ;;;-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- | ||||
| ;;; Debugging | ||||
| ;;;-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- | ||||
| 
 | ||||
|     (define (bin n) | ||||
|       (number->string n 2)) | ||||
| 
 | ||||
|     (define (oct n) | ||||
|       (number->string n 8)) | ||||
| 
 | ||||
|     (define (dec n) | ||||
|       (number->string n 10)) | ||||
| 
 | ||||
|     (define (hex n) | ||||
|       (number->string n 16)) | ||||
| 
 | ||||
| ;;-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- | ||||
| 
 | ||||
|     ; For example: | ||||
|     ;   (do-it 100000 "~/s48/debug/little.image" "little-heap.c") | ||||
|     ; | ||||
|     ; The first argument to do-it should be somewhat larger than the size, | ||||
|     ; in bytes, of the image file to be converted (which you can obtain with | ||||
|     ; "ls -l"). | ||||
|     ; | ||||
|     ; If the image contains 0-length stored objects, then the .c file will | ||||
|     ; have to be compiled by gcc, since 0-length arrays aren't allowed in | ||||
|     ; ANSI C.  This wouldn't be difficult to work around. | ||||
|      | ||||
|     (define *comments?* #f) | ||||
|      | ||||
|     ; 800,000 bytes => 200,000 words => at least 100,000 objects | ||||
|     ;   50 chunks => 16,000 bytes per chunk => 2,000 objects per chunk | ||||
|     (define *chunk-size* 10000) | ||||
| 
 | ||||
|     (define (do-it bytes infile outfile) | ||||
|       (let ((start (init bytes infile))) | ||||
| 	(call-with-output-file outfile | ||||
| 	  (lambda (port) | ||||
| 	    (format port "#define D(x) (long)(&x)+7~%") | ||||
| 	    (format port "#define H unsigned long~%") | ||||
| 	    (emit-area-declarations "p" immutable? "const " port) | ||||
| 	    (emit-area-declarations "i" mutable? "" port) | ||||
| 	    (emit-area-initializers "p" immutable? "const " port) | ||||
| 	    (emit-area-initializers "i" mutable? "" port) | ||||
| 	    (display "const long entry = " port) | ||||
| 	    (emit-descriptor start port) | ||||
| 	    (write-char #\; port) | ||||
| 	    (newline port))))) | ||||
| 
 | ||||
|     (define (init bytes infile) | ||||
|       (create-memory (quotient bytes 2) quiescent) ;Output of ls -l | ||||
|       (initialize-heap (memory-begin) (memory-size)) | ||||
|       (let ((start (read-image infile 0))) | ||||
| 	(message (nchunks) | ||||
| 		 " chunks") | ||||
| 	start)) | ||||
| 
 | ||||
|     (define (nchunks) (+ (chunk-number (heap-pointer)) 1)) | ||||
| 
 | ||||
| 					; emit struct declarations for areas | ||||
| 
 | ||||
|     (define (emit-area-declarations name in-area? const port) | ||||
|       (for-each-stored-object | ||||
|        (lambda (chunk) | ||||
| 	 (message name chunk " declaration") | ||||
| 	 (display "struct " port) (display name port) (display chunk port) | ||||
| 	 (display " {" port) (newline port)) | ||||
|        (lambda (x) | ||||
| 	 (if (in-area? x) | ||||
| 	     (emit-declaration x port))) | ||||
|        (lambda (chunk) | ||||
| 	 (display "};" port) | ||||
| 	 (newline port) | ||||
| 	 (display const port) | ||||
| 	 (display "extern struct " port) (display name port) (display chunk port) | ||||
| 	 (write-char #\space port) (display name port) (display chunk port) | ||||
| 	 (write-char #\; port) (newline port) | ||||
| 	 chunk))) | ||||
| 
 | ||||
|     (define (emit-declaration x port) | ||||
|       (display "  H x" port) | ||||
|       (writex x port) | ||||
|       (cond ((d-vector? x) | ||||
| 	     (display "; long d" port) | ||||
| 	     (writex x port) | ||||
| 	     (write-char #\[ port) | ||||
| 	     (write (d-vector-length x) port)) | ||||
| 	    ((vm-string? x) | ||||
| 	     (display "; char d" port) | ||||
| 	     (writex x port) | ||||
| 	     (write-char #\[ port) | ||||
| 	     ;; Ensure alignment (thanks Ian) | ||||
| 	     (write (cells->bytes (bytes->cells (b-vector-length x))) | ||||
| 		    port)) | ||||
| 	    (else | ||||
| 	     (display "; unsigned char d" port) | ||||
| 	     (writex x port) | ||||
| 	     (write-char #\[ port) | ||||
| 	     ;; Ensure alignment | ||||
| 	     (write (cells->bytes (bytes->cells (b-vector-length x))) | ||||
| 		    port))) | ||||
|       (display "];" port) | ||||
|       (if *comments?* | ||||
| 	  (begin (display " /* " port) | ||||
| 		 (display (enumerand->name (stob-type x) stob) port) | ||||
| 		 (display " */" port))) | ||||
|       (newline port)) | ||||
| 
 | ||||
| 					; Emit initializers for areas | ||||
| 
 | ||||
|     (define (emit-area-initializers name in-area? const port) | ||||
|       (for-each-stored-object | ||||
|        (lambda (chunk) | ||||
| 	 (message name chunk " initializer") | ||||
| 
 | ||||
| 	 (display const port) | ||||
| 	 (display "struct " port) (display name port) (write chunk port) | ||||
| 	 (write-char #\space port) (display name port) (write chunk port) | ||||
| 	 (display " =" port) (newline port) | ||||
| 
 | ||||
| 	 (write-char #\{ port) (newline port)) | ||||
|        (lambda (x) | ||||
| 	 (if (in-area? x) | ||||
| 	     (emit-initializer x port))) | ||||
|        (lambda (chunk) | ||||
| 	 (display "};" port) (newline port))) | ||||
| 
 | ||||
|       (let ((n (nchunks))) | ||||
| 	(format port "const long ~a_count = ~s;~%" name n) | ||||
| 	(format port "~a long * const ~a_areas[~s] = {" const name n) | ||||
| 	(do ((i 0 (+ i 1))) | ||||
| 	    ((= i n)) | ||||
| 	  (format port "(~a long *)&~a~s, " const name i)) | ||||
| 	(format port "};~%const long ~a_sizes[~s] = {" name n) | ||||
| 	(do ((i 0 (+ i 1))) | ||||
| 	    ((= i n)) | ||||
| 	  (format port "sizeof(~a~s), " name i)) | ||||
| 	(format port "};~%"))) | ||||
| 
 | ||||
| 
 | ||||
|     (define (message . stuff) | ||||
|       (for-each display stuff) (newline)) | ||||
| 
 | ||||
|     (define (emit-initializer x port) | ||||
|       (display "  " port) | ||||
|       (write (stob-header x) port) | ||||
|       (write-char #\, port) | ||||
|       (cond ((d-vector? x) | ||||
| 	     (emit-d-vector-initializer x port)) | ||||
| 	    ((vm-string? x) | ||||
| 	     (write-char #\" port) | ||||
| 	     (let ((len (vm-string-length x))) | ||||
| 	       (do ((i 0 (+ i 1))) | ||||
| 		   ((= i len) (write-char #\" port)) | ||||
| 		 (let ((c (vm-string-ref x i))) | ||||
| 		   (cond ((or (char=? c #\") (char=? c #\\)) | ||||
| 			  (write-char #\\ port)) | ||||
| 			 ((char=? c #\newline) | ||||
| 			  (display "\\n\\" port))) | ||||
| 		   (write-char c port))))) | ||||
| 	    (else | ||||
| 	     (write-char #\{ port) | ||||
| 	     (let ((len (b-vector-length x))) | ||||
| 	       (do ((i 0 (+ i 1))) | ||||
| 		   ((= i len) (write-char #\} port)) | ||||
| 		 (write (b-vector-ref x i) port) | ||||
| 		 (write-char #\, port))))) | ||||
|       (write-char #\, port) | ||||
|       (if *comments?* | ||||
| 	  (begin (display " /* " port) | ||||
| 		 (writex x port) | ||||
| 		 (display " */" port))) | ||||
|       (newline port)) | ||||
| 
 | ||||
|     (define (emit-d-vector-initializer x port) | ||||
|       (write-char #\{ port) | ||||
|       (let ((len (d-vector-length x))) | ||||
| 	(do ((i 0 (+ i 1))) | ||||
| 	    ((= i len) (write-char #\} port)) | ||||
| 	  (emit-descriptor (d-vector-ref x i) port) | ||||
| 	  (write-char #\, port)))) | ||||
| 
 | ||||
|     (define (emit-descriptor x port) | ||||
|       (if (stob? x) | ||||
| 	  (begin (if (immutable? x) | ||||
| 		     (display "D(p" port) | ||||
| 		     (display "D(i" port)) | ||||
| 		 (display (chunk-number x) port) | ||||
| 		 (display ".x" port) | ||||
| 		 (writex x port) | ||||
| 		 (write-char #\) port)) | ||||
| 	  (write x port))) | ||||
| 
 | ||||
| 
 | ||||
| 					; Foo | ||||
| 
 | ||||
|     (define (writex x port) | ||||
|       (write (quotient (- (- x (memory-begin)) 7) 4) port)) | ||||
| 
 | ||||
|     (define (chunk-number x) | ||||
|       (quotient (- (- x (memory-begin)) 7) *chunk-size*)) | ||||
| 
 | ||||
| 
 | ||||
| 					; Image traversal utility | ||||
| 
 | ||||
|     (define (for-each-stored-object chunk-start proc chunk-end) | ||||
|       (let ((limit (heap-pointer))) | ||||
| 	(let chunk-loop ((addr (newspace-begin)) | ||||
| 			 (i 0) | ||||
| 			 (chunk (+ (newspace-begin) *chunk-size*))) | ||||
| 	  (if (addr< addr limit) | ||||
| 	      (begin (chunk-start i) | ||||
| 		     (let loop ((addr addr)) | ||||
| 		       (if (and (addr< addr limit) | ||||
| 				(addr< addr chunk)) | ||||
| 			   (let ((d (fetch addr))) | ||||
| 			     (if (not (header? d)) | ||||
| 				 (warn "heap is in an inconsistent state" d)) | ||||
| 			     (proc (address->stob-descriptor (addr1+ addr))) | ||||
| 			     (loop (addr1+ (addr+ addr (header-a-units d))))) | ||||
| 			   (begin (chunk-end i) | ||||
| 				  (chunk-loop addr | ||||
| 					      (+ i 1) | ||||
| 					      (+ chunk *chunk-size*)))))))))) | ||||
| 
 | ||||
|     (define (mutable? x) (not (immutable? x))) | ||||
| 
 | ||||
|     ;; End begin | ||||
|     )) | ||||
|  |  | |||
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		Reference in New Issue
	
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