3 # This is a script to be run as part of make.sh. The only time you'd
4 # want to run it by itself is if you're trying to cross-compile the
5 # system or if you're doing some kind of troubleshooting.
7 # This software is part of the SBCL system. See the README file for
10 # This software is derived from the CMU CL system, which was
11 # written at Carnegie Mellon University and released into the
12 # public domain. The software is in the public domain and is
13 # provided with absolutely no warranty. See the COPYING and CREDITS
14 # files for more information.
16 echo //entering make-host-2.sh
21 # In some cases, a debugging build of the system will creates a core
22 # file output/after-xc.core in the next step. In cases where it
23 # doesn't, it's confusing and basically useless to have any old copies
24 # lying around, so delete:
25 rm -f output/after-xc.core
27 # In a fresh host Lisp invocation, load and run the cross-compiler to
28 # create the target object files describing the target SBCL.
30 # (There are at least three advantages to running the cross-compiler in a
31 # fresh host Lisp invocation instead of just using the same Lisp invocation
32 # that we used to compile it:
33 # (1) It reduces the chance that the cross-compilation process
34 # inadvertently comes to depend on some weird compile-time
36 # (2) It reduces peak memory demand (because definitions wrapped in
37 # (EVAL-WHEN (:COMPILE-TOPLEVEL :EXECUTE) ..) aren't defined
38 # in the fresh image).
39 # (3) It makes it easier to jump in and retry a step when tweaking
40 # and experimenting with the bootstrap procedure.
41 # Admittedly, these don't seem to be enormously important advantages, but
42 # the only disadvantage seems to be the extra time required to reload
43 # the fasl files into the new host Lisp, and that doesn't seem to be
44 # an enormously important disadvantage, either.)
45 echo //running cross-compiler to create target object files
46 $SBCL_XC_HOST <<-'EOF' || exit 1
49 ;;; Set up the cross-compiler.
51 (setf *print-level* 5 *print-length* 5)
52 (load "src/cold/shared.lisp")
53 (in-package "SB-COLD")
54 (setf *host-obj-prefix* "obj/from-host/"
55 *target-obj-prefix* "obj/from-xc/")
56 (load "src/cold/set-up-cold-packages.lisp")
57 (load "src/cold/defun-load-or-cload-xcompiler.lisp")
58 (load-or-cload-xcompiler #'host-load-stem)
59 (defun proclaim-target-optimization ()
60 (let ((debug (if (position :sb-show *shebang-features*) 2 1)))
65 ;; CLISP's pretty-printer is fragile and tends to cause
66 ;; stack corruption or fail internal assertions, as of
67 ;; 2003-04-20; we therefore turn off as many notes as
69 (sb!ext:inhibit-warnings #-clisp 2
71 ;; SAFETY = SPEED (and < 3) should provide reasonable
72 ;; safety, but might skip some unreasonably expensive
73 ;; stuff (e.g. %DETECT-STACK-EXHAUSTION in sbcl-0.7.2).
77 (sb!c:insert-step-conditions 0)
78 (sb!c::stack-allocate-dynamic-extent 3)))))
79 (compile 'proclaim-target-optimization)
80 (defun in-target-cross-compilation-mode (fun)
81 "Call FUN with everything set up appropriately for cross-compiling
83 (let (;; In order to increase microefficiency of the target Lisp,
84 ;; enable old CMU CL defined-function-types-never-change
85 ;; optimizations. (ANSI says users aren't supposed to
86 ;; redefine our functions anyway; and developers can
87 ;; fend for themselves.)
88 #!-sb-fluid (sb!ext:*derive-function-types* t)
89 ;; Let the target know that we're the cross-compiler.
90 (*features* (cons :sb-xc *features*))
91 ;; We need to tweak the readtable..
92 (*readtable* (copy-readtable)))
93 ;; ..in order to make backquotes expand into target code
94 ;; instead of host code.
95 ;; FIXME: Isn't this now taken care of automatically by
96 ;; toplevel forms in the xcompiler backq.lisp file?
97 (set-macro-character #\` #'sb!impl::backquote-macro)
98 (set-macro-character #\, #'sb!impl::comma-macro)
99 ;; Control optimization policy.
100 (proclaim-target-optimization)
101 ;; Specify where target machinery lives.
102 (with-additional-nickname ("SB-XC" "SB!XC")
104 (compile 'in-target-cross-compilation-mode)
105 (setf *target-compile-file* #'sb-xc:compile-file)
106 (setf *target-assemble-file* #'sb!c:assemble-file)
107 (setf *in-target-compilation-mode-fn*
108 #'in-target-cross-compilation-mode)
111 ;;; Run the cross-compiler to produce cold fasl files.
113 (load "src/cold/compile-cold-sbcl.lisp")
116 ;;; miscellaneous tidying up and saving results
118 (let ((filename "output/object-filenames-for-genesis.lisp-expr"))
119 (ensure-directories-exist filename :verbose t)
120 (with-open-file (s filename :direction :output :if-exists :supersede)
121 (write *target-object-file-names* :stream s :readably t)))
122 ;; Let's check that the type system was reasonably sane. (It's
123 ;; easy to spend a long time wandering around confused trying
124 ;; to debug cold init if it wasn't.)
125 (when (position :sb-test *shebang-features*)
126 (load "tests/type.after-xc.lisp"))
127 ;; If you're experimenting with the system under a
128 ;; cross-compilation host which supports CMU-CL-style SAVE-LISP,
129 ;; this can be a good time to run it. The resulting core isn't
130 ;; used in the normal build, but can be handy for experimenting
131 ;; with the system. (See slam.sh for an example.)
132 (when (position :sb-after-xc-core *shebang-features*)
133 #+cmu (ext:save-lisp "output/after-xc.core" :load-init-file nil)
134 #+sbcl (sb-ext:save-lisp-and-die "output/after-xc.core")
135 #+openmcl (ccl::save-application "output/after-xc.core")
136 #+clisp (ext:saveinitmem "output/after-xc.core"))
141 # Run GENESIS (again) in order to create cold-sbcl.core. (The first
142 # time was before we ran the cross-compiler, in order to create the
143 # header file which was needed in order to run gcc on the runtime