make-host-2.lisp

   1 ;;; Set up the cross-compiler.
   2 (setf *print-level* 5 *print-length* 5)
   3 (load "src/cold/shared.lisp")
   4 (in-package "SB-COLD")
   5 ;;; FIXME: these prefixes look like non-pathnamy ways of defining a
   6 ;;; relative pathname.  Investigate whether they can be made relative
   7 ;;; pathnames.
   8 (setf *host-obj-prefix* "obj/from-host/"
   9       *target-obj-prefix* "obj/from-xc/")
  10 (load "src/cold/set-up-cold-packages.lisp")
  11 (load "src/cold/defun-load-or-cload-xcompiler.lisp")
  12 (load-or-cload-xcompiler #'host-load-stem)
  13
  14 (defun proclaim-target-optimization ()
  15   (let ((debug (if (position :sb-show *shebang-features*) 2 1)))
  16     (sb-xc:proclaim
  17      `(optimize
  18        (compilation-speed 1) (debug ,debug)
  19        ;; CLISP's pretty-printer is fragile and tends to cause stack
  20        ;; corruption or fail internal assertions, as of 2003-04-20; we
  21        ;; therefore turn off as many notes as possible.
  22        (sb!ext:inhibit-warnings #-clisp 2 #+clisp 3)
  23        ;; SAFETY = SPEED (and < 3) should provide reasonable safety,
  24        ;; but might skip some unreasonably expensive stuff
  25        ;; (e.g. %DETECT-STACK-EXHAUSTION in sbcl-0.7.2).
  26        (safety 2) (space 1) (speed 2)
  27        ;; sbcl-internal optimization declarations:
  28        ;;
  29        ;; never insert stepper conditions
  30        (sb!c:insert-step-conditions 0)
  31        ;; save FP and PC for alien calls -- or not
  32        (sb!c:alien-funcall-saves-fp-and-pc #!+x86 3 #!-x86 0)))))
  33 (compile 'proclaim-target-optimization)
  34
  35 (defun in-target-cross-compilation-mode (fun)
  36   "Call FUN with everything set up appropriately for cross-compiling
  37    a target file."
  38   (let (;; In order to increase microefficiency of the target Lisp,
  39         ;; enable old CMU CL defined-function-types-never-change
  40         ;; optimizations. (ANSI says users aren't supposed to
  41         ;; redefine our functions anyway; and developers can
  42         ;; fend for themselves.)
  43         #!-sb-fluid
  44         (sb!ext:*derive-function-types* t)
  45         ;; Let the target know that we're the cross-compiler.
  46         (*features* (cons :sb-xc *features*))
  47         ;; We need to tweak the readtable..
  48         (*readtable* (copy-readtable)))
  49     ;; ..in order to make backquotes expand into target code
  50     ;; instead of host code.
  51     ;; FIXME: Isn't this now taken care of automatically by
  52     ;; toplevel forms in the xcompiler backq.lisp file?
  53     (set-macro-character #\` #'sb!impl::backquote-macro)
  54     (set-macro-character #\, #'sb!impl::comma-macro)
  55
  56     (set-dispatch-macro-character #\# #\+ #'she-reader)
  57     (set-dispatch-macro-character #\# #\- #'she-reader)
  58     ;; Control optimization policy.
  59     (proclaim-target-optimization)
  60     ;; Specify where target machinery lives.
  61     (with-additional-nickname ("SB-XC" "SB!XC")
  62       (funcall fun))))
  63 (compile 'in-target-cross-compilation-mode)
  64
  65
  66 ;; Supress function/macro redefinition warnings under clisp.
  67 #+clisp (setf custom:*suppress-check-redefinition* t)
  68
  69 (setf *target-compile-file* #'sb-xc:compile-file)
  70 (setf *target-assemble-file* #'sb!c:assemble-file)
  71 (setf *in-target-compilation-mode-fn* #'in-target-cross-compilation-mode)
  72 \f
  73 ;;; Run the cross-compiler to produce cold fasl files.
  74 ;; This suppresses ~6000 lines of "undefined function" warnings from the
  75 ;; cross-compiler stemming from the calls to INSTANCE-TYPEP that occur before
  76 ;; src/code/class gets compiled. It magically converts efficiently,
  77 ;; but IR1 is a little bit naive about how it happens.
  78 (dolist (f '(sb!kernel:layout-depthoid
  79              sb!kernel:layout-inherits))
  80   (setf (sb!int:info :function :kind f) :function
  81         (sb!int:info :function :where-from f) :declared))
  82 (load "src/cold/compile-cold-sbcl.lisp")
  83
  84 ;; After cross-compiling, show me a list of types that checkgen
  85 ;; would have liked to use primitive traps for but couldn't.
  86 #+nil
  87 (let ((l (sb-impl::%hash-table-alist sb!c::*checkgen-used-types*)))
  88   (format t "~&Types needed by checkgen: ('+' = has internal error number)~%")
  89   (setq l (sort l #'> :key #'cadr))
  90   (loop for (type-spec . (count . interr-p)) in l
  91         do (format t "~:[ ~;+~] ~5D ~S~%" interr-p count type-spec))
  92   (format t "~&Error numbers not used by checkgen:~%")
  93   (loop for (spec . symbol) across sb!c::*backend-internal-errors*
  94         when (and (not (stringp spec))
  95                   (not (gethash spec sb!c::*checkgen-used-types*)))
  96         do (format t "       ~S~%" spec)))
  97
  98 ;;; miscellaneous tidying up and saving results
  99 (let ((filename "output/object-filenames-for-genesis.lisp-expr"))
 100   (ensure-directories-exist filename :verbose t)
 101   (with-open-file (s filename :direction :output :if-exists :supersede)
 102     (write *target-object-file-names* :stream s :readably t)))
 103
 104 ;;; Let's check that the type system was reasonably sane. (It's easy
 105 ;;; to spend a long time wandering around confused trying to debug
 106 ;;; cold init if it wasn't.)
 107 (when (position :sb-test *shebang-features*)
 108   (load "tests/type.after-xc.lisp"))
 109
 110 ;;; If you're experimenting with the system under a cross-compilation
 111 ;;; host which supports CMU-CL-style SAVE-LISP, this can be a good
 112 ;;; time to run it. The resulting core isn't used in the normal build,
 113 ;;; but can be handy for experimenting with the system. (See slam.sh
 114 ;;; for an example.)
 115 (when (position :sb-after-xc-core *shebang-features*)
 116   #+cmu (ext:save-lisp "output/after-xc.core" :load-init-file nil)
 117   #+sbcl (sb-ext:save-lisp-and-die "output/after-xc.core")
 118   #+openmcl (ccl::save-application "output/after-xc.core")
 119   #+clisp (ext:saveinitmem "output/after-xc.core"))
 120 #+cmu (ext:quit)
 121 #+clisp (ext:quit)
 122 #+abcl (ext:quit)