# that we used to compile it:
# (1) It reduces the chance that the cross-compilation process
# inadvertently comes to depend on some weird compile-time
-# side-effect.
+# side effect.
# (2) It reduces peak memory demand (because definitions wrapped in
# (EVAL-WHEN (:COMPILE-TOPLEVEL :EXECUTE) ..) aren't defined
# in the fresh image).
# an enormously important disadvantage, either.)
echo //running cross-compiler to create target object files
$SBCL_XC_HOST <<-'EOF' || exit 1
+
+ ;;;
+ ;;; Set up the cross-compiler.
+ ;;;
(setf *print-level* 5 *print-length* 5)
(load "src/cold/shared.lisp")
(in-package "SB-COLD")
(sb-xc:proclaim `(optimize (compilation-speed 1)
(debug ,debug)
(sb!ext:inhibit-warnings 2)
- (safety 3)
+ ;; SAFETY = SPEED (and < 3) should
+ ;; reasonable safety, but might skip
+ ;; some unreasonably expensive stuff
+ ;; (e.g. %DETECT-STACK-EXHAUSTION
+ ;; in sbcl-0.7.2).
+ (safety 2)
(space 1)
(speed 2)))))
(compile 'proclaim-target-optimization)
(defun in-target-cross-compilation-mode (fn)
"Call FN with everything set up appropriately for cross-compiling
a target file."
- (let (;; Life is simpler at genesis/cold-load time if we
- ;; needn't worry about byte-compiled code.
- (sb!ext:*byte-compile-top-level* nil)
- ;; In order to reduce peak memory usage during GENESIS,
- ;; it helps to stuff several toplevel forms together
- ;; into the same function.
- (sb!c::*top-level-lambda-max* 10)
+ (let (;; In order to increase microefficiency of the target Lisp,
+ ;; enable old CMU CL defined-function-types-never-change
+ ;; optimizations. (ANSI says users aren't supposed to
+ ;; redefine our functions anyway; and developers can
+ ;; fend for themselves.)
+ #!-sb-fluid (sb!ext:*derive-function-types* t)
;; Let the target know that we're the cross-compiler.
(*features* (cons :sb-xc *features*))
;; We need to tweak the readtable..
(setf *target-assemble-file* 'sb!c:assemble-file)
(setf *in-target-compilation-mode-fn*
#'in-target-cross-compilation-mode)
+
+ ;;;
+ ;;; Run the cross-compiler to produce cold fasl files.
+ ;;;
(load "src/cold/compile-cold-sbcl.lisp")
+
+ ;;;
+ ;;; miscellaneous tidying up and saving results
+ ;;;
(let ((filename "output/object-filenames-for-genesis.lisp-expr"))
(ensure-directories-exist filename :verbose t)
(with-open-file (s filename :direction :output)