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77bf768d09
Inspired by Josh Elasser (sbcl-devel 2008-08-29), write code that tries to be clever about reader conditionals in the cross-compiler, in order to point out when a mistake is likely. ... and fix the extra buglet that this reveals.
96 lines
4.1 KiB
Common Lisp
96 lines
4.1 KiB
Common Lisp
;;; Set up the cross-compiler.
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(setf *print-level* 5 *print-length* 5)
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(load "src/cold/shared.lisp")
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(in-package "SB-COLD")
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;;; FIXME: these prefixes look like non-pathnamy ways of defining a
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;;; relative pathname. Investigate whether they can be made relative
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;;; pathnames.
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(setf *host-obj-prefix* "obj/from-host/"
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*target-obj-prefix* "obj/from-xc/")
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(load "src/cold/set-up-cold-packages.lisp")
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(load "src/cold/defun-load-or-cload-xcompiler.lisp")
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(load-or-cload-xcompiler #'host-load-stem)
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(defun proclaim-target-optimization ()
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(let ((debug (if (position :sb-show *shebang-features*) 2 1)))
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(sb-xc:proclaim
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`(optimize
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(compilation-speed 1) (debug ,debug)
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;; CLISP's pretty-printer is fragile and tends to cause stack
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;; corruption or fail internal assertions, as of 2003-04-20; we
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;; therefore turn off as many notes as possible.
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(sb!ext:inhibit-warnings #-clisp 2 #+clisp 3)
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;; SAFETY = SPEED (and < 3) should provide reasonable safety,
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;; but might skip some unreasonably expensive stuff
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;; (e.g. %DETECT-STACK-EXHAUSTION in sbcl-0.7.2).
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(safety 2) (space 1) (speed 2)
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;; sbcl-internal optimization declarations:
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;;
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;; never insert stepper conditions
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(sb!c:insert-step-conditions 0)))))
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(compile 'proclaim-target-optimization)
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(defun in-target-cross-compilation-mode (fun)
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"Call FUN with everything set up appropriately for cross-compiling
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a target file."
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(let (;; In order to increase microefficiency of the target Lisp,
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;; enable old CMU CL defined-function-types-never-change
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;; optimizations. (ANSI says users aren't supposed to
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;; redefine our functions anyway; and developers can
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;; fend for themselves.)
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#!-sb-fluid
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(sb!ext:*derive-function-types* t)
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;; Let the target know that we're the cross-compiler.
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(*features* (cons :sb-xc *features*))
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;; We need to tweak the readtable..
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(*readtable* (copy-readtable)))
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;; ..in order to make backquotes expand into target code
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;; instead of host code.
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;; FIXME: Isn't this now taken care of automatically by
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;; toplevel forms in the xcompiler backq.lisp file?
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(set-macro-character #\` #'sb!impl::backquote-macro)
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(set-macro-character #\, #'sb!impl::comma-macro)
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(set-dispatch-macro-character #\# #\+ #'she-reader)
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(set-dispatch-macro-character #\# #\- #'she-reader)
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;; Control optimization policy.
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(proclaim-target-optimization)
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;; Specify where target machinery lives.
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(with-additional-nickname ("SB-XC" "SB!XC")
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(funcall fun))))
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(compile 'in-target-cross-compilation-mode)
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(setf *target-compile-file* #'sb-xc:compile-file)
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(setf *target-assemble-file* #'sb!c:assemble-file)
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(setf *in-target-compilation-mode-fn* #'in-target-cross-compilation-mode)
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;;; Run the cross-compiler to produce cold fasl files.
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(load "src/cold/compile-cold-sbcl.lisp")
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;;; miscellaneous tidying up and saving results
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(let ((filename "output/object-filenames-for-genesis.lisp-expr"))
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(ensure-directories-exist filename :verbose t)
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(with-open-file (s filename :direction :output :if-exists :supersede)
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(write *target-object-file-names* :stream s :readably t)))
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;;; Let's check that the type system was reasonably sane. (It's easy
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;;; to spend a long time wandering around confused trying to debug
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;;; cold init if it wasn't.)
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(when (position :sb-test *shebang-features*)
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(load "tests/type.after-xc.lisp"))
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;;; If you're experimenting with the system under a cross-compilation
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;;; host which supports CMU-CL-style SAVE-LISP, this can be a good
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;;; time to run it. The resulting core isn't used in the normal build,
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;;; but can be handy for experimenting with the system. (See slam.sh
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;;; for an example.)
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(when (position :sb-after-xc-core *shebang-features*)
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#+cmu (ext:save-lisp "output/after-xc.core" :load-init-file nil)
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#+sbcl (sb-ext:save-lisp-and-die "output/after-xc.core")
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#+openmcl (ccl::save-application "output/after-xc.core")
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#+clisp (ext:saveinitmem "output/after-xc.core"))
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#+cmu (ext:quit)
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#+clisp (ext:quit)
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#+abcl (ext:quit)
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