mirror of
git://git.code.sf.net/p/sbcl/sbcl
synced 2026-09-10 07:26:40 -04:00
149 lines
6.3 KiB
Bash
149 lines
6.3 KiB
Bash
#!/bin/sh
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set -e
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# This is a script to be run as part of make.sh. The only time you'd
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# want to run it by itself is if you're trying to cross-compile the
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# system or if you're doing some kind of troubleshooting.
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# This software is part of the SBCL system. See the README file for
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# more information.
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#
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# This software is derived from the CMU CL system, which was
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# written at Carnegie Mellon University and released into the
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# public domain. The software is in the public domain and is
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# provided with absolutely no warranty. See the COPYING and CREDITS
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# files for more information.
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echo //entering make-host-2.sh
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LANG=C
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LC_ALL=C
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export LANG LC_ALL
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# In some cases, a debugging build of the system will creates a core
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# file output/after-xc.core in the next step. In cases where it
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# doesn't, it's confusing and basically useless to have any old copies
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# lying around, so delete:
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rm -f output/after-xc.core
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# In a fresh host Lisp invocation, load and run the cross-compiler to
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# create the target object files describing the target SBCL.
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#
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# (There are at least three advantages to running the cross-compiler in a
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# fresh host Lisp invocation instead of just using the same Lisp invocation
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# that we used to compile it:
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# (1) It reduces the chance that the cross-compilation process
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# inadvertently comes to depend on some weird compile-time
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# side effect.
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# (2) It reduces peak memory demand (because definitions wrapped in
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# (EVAL-WHEN (:COMPILE-TOPLEVEL :EXECUTE) ..) aren't defined
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# in the fresh image).
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# (3) It makes it easier to jump in and retry a step when tweaking
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# and experimenting with the bootstrap procedure.
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# Admittedly, these don't seem to be enormously important advantages, but
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# the only disadvantage seems to be the extra time required to reload
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# the fasl files into the new host Lisp, and that doesn't seem to be
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# an enormously important disadvantage, either.)
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echo //running cross-compiler to create target object files
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$SBCL_XC_HOST <<-'EOF'
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;;;
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;;; Set up the cross-compiler.
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;;;
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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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(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)
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(debug ,debug)
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;; CLISP's pretty-printer is fragile and tends to cause
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;; stack corruption or fail internal assertions, as of
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;; 2003-04-20; we therefore turn off as many notes as
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;; possible.
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(sb!ext:inhibit-warnings #-clisp 2
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#+clisp 3)
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;; SAFETY = SPEED (and < 3) should provide reasonable
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;; safety, but might skip some unreasonably expensive
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;; stuff (e.g. %DETECT-STACK-EXHAUSTION in sbcl-0.7.2).
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(safety 2)
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(space 1)
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(speed 2)
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(sb!c:insert-step-conditions 0)
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(sb!c::stack-allocate-dynamic-extent 3)))))
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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 (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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;; 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*
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#'in-target-cross-compilation-mode)
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;;;
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;;; Run the cross-compiler to produce cold fasl files.
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;;;
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(load "src/cold/compile-cold-sbcl.lisp")
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;;;
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;;; miscellaneous tidying up and saving results
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;;;
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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
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;; easy to spend a long time wandering around confused trying
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;; to debug 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
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;; cross-compilation host which supports CMU-CL-style SAVE-LISP,
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;; this can be a good time to run it. The resulting core isn't
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;; used in the normal build, but can be handy for experimenting
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;; with the system. (See slam.sh 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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EOF
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# Run GENESIS (again) in order to create cold-sbcl.core. (The first
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# time was before we ran the cross-compiler, in order to create the
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# header file which was needed in order to run gcc on the runtime
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# code.)
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sh make-genesis-2.sh
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