;;;; provided with absolutely no warranty. See the COPYING and CREDITS
;;;; files for more information.
-;;; TO DO: Might it be possible to increase the efficiency of CMU CL's garbage
-;;; collection on my large (256Mb) machine by doing larger incremental GC steps
-;;; than the default 2 Mb of CMU CL 2.4.9? A quick test 19990729, setting this
-;;; to 5E6 showed no significant improvement, but it's possible that more
-;;; cleverness might help..
-;#+cmu (setf ext:*bytes-consed-between-gcs* (* 5 (expt 10 6)))
-
-;;; FIXME: I'm now inclined to make all the bootstrap stuff run in CL-USER
-;;; instead of SB-COLD. If I do so, I should first take care to
-;;; UNINTERN any old stuff in CL-USER, since ANSI says (11.1.2.2, "The
-;;; COMMON-LISP-USER Package") that CL-USER can have arbitrary symbols in
-;;; it. (And of course I should set the USE list to only CL.)
+;;; SB-COLD holds stuff used to build the initial SBCL core file
+;;; (including not only the final construction of the core file, but
+;;; also the preliminary steps like e.g. building the cross-compiler
+;;; and running the cross-compiler to produce target FASL files).
(defpackage "SB-COLD" (:use "CL"))
-(in-package "SB-COLD")
-;;; prefix for source filename stems when cross-compiling
-(defvar *src-prefix* "src/")
-;;; (We don't bother to specify the source suffix here because ".lisp" is such
-;;; a good default value that we never have to specify it explicitly.)
+(in-package "SB-COLD")
;;; prefixes for filename stems when cross-compiling. These are quite arbitrary
;;; (although of course they shouldn't collide with anything we don't want to
;;; "host-objects/" or absolute pathnames (e.g. "/tmp/sbcl-xc-host-objects/").
;;;
;;; The cross-compilation process will force the creation of these directories
-;;; by executing CL:ENSURE-DIRECTORIES-EXIST (on the host Common Lisp).
+;;; by executing CL:ENSURE-DIRECTORIES-EXIST (on the xc host Common Lisp).
(defvar *host-obj-prefix*)
(defvar *target-obj-prefix*)
-;;; suffixes for filename stems when cross-compiling. Everything should work
-;;; fine for any arbitrary string values here. With more work maybe we
-;;; could cause these automatically to become the traditional extensions for
-;;; whatever host and target architectures (e.g. ".x86f" or ".axpf") we're
-;;; currently doing. That would make it easier for a human looking at the
-;;; temporary files to figure out what they're for, but it's not necessary for
-;;; the compilation process to work, so we haven't bothered.
-(defvar *host-obj-suffix* ".lisp-obj")
-(defvar *target-obj-suffix* ".lisp-obj")
+;;; suffixes for filename stems when cross-compiling
+(defvar *host-obj-suffix*
+ (or
+ ;; On some xc hosts, it's impossible to LOAD a fasl file unless it
+ ;; has the same extension that the host uses for COMPILE-FILE
+ ;; output, so we have to be careful to use the xc host's preferred
+ ;; extension.
+ ;;
+ ;; FIXME: This is a little ugly and annoying to maintain. And
+ ;; there's very likely some way to rearrange the build process so
+ ;; that we never explicitly refer to host object file suffixes,
+ ;; only to the result of CL:COMPILE-FILE-PATHNAME.
+ #+lispworks ".ufsl" ; as per Lieven Marchand sbcl-devel 2002-02-01
+ #+openmcl ".pfsl"
+ ;; On most xc hosts, any old extension works, so we use an
+ ;; arbitrary one.
+ ".lisp-obj"))
+(defvar *target-obj-suffix*
+ ;; Target fasl files are LOADed (actually only quasi-LOADed, in
+ ;; GENESIS) only by SBCL code, and it doesn't care about particular
+ ;; extensions, so we can use something arbitrary.
+ ".lisp-obj")
;;; a function of one functional argument, which calls its functional argument
;;; in an environment suitable for compiling the target. (This environment
;;; includes e.g. a suitable *FEATURES* value.)
+(declaim (type function *in-target-compilation-mode-fn*))
(defvar *in-target-compilation-mode-fn*)
-;;; designator for a function with the same calling convention as
-;;; CL:COMPILE-FILE, to be used to translate ordinary Lisp source files into
-;;; target object files
+;;; a function with the same calling convention as CL:COMPILE-FILE, to be
+;;; used to translate ordinary Lisp source files into target object files
+(declaim (type function *target-compile-file*))
(defvar *target-compile-file*)
;;; designator for a function with the same calling convention as
;;; able to get rid of this function and use plain RENAME-FILE in the
;;; COMPILE-STEM function above. -- WHN 19990321
(defun rename-file-a-la-unix (x y)
- (rename-file x
- ;; (Note that the TRUENAME expression here is lifted from an
- ;; example in the ANSI spec for TRUENAME.)
- (with-open-file (stream y :direction :output)
- (close stream)
- ;; From the ANSI spec: "In this case, the file is closed
- ;; when the truename is tried, so the truename
- ;; information is reliable."
- (truename stream))))
+
+ (let ((path ;; (Note that the TRUENAME expression here is lifted from an
+ ;; example in the ANSI spec for TRUENAME.)
+ (with-open-file (stream y :direction :output)
+ (close stream)
+ ;; From the ANSI spec: "In this case, the file is closed
+ ;; when the truename is tried, so the truename
+ ;; information is reliable."
+ (truename stream))))
+ (delete-file path)
+ (rename-file x path)))
(compile 'rename-file-a-la-unix)
;;; a wrapper for compilation/assembly, used mostly to centralize
;;; the procedure for finding full filenames from "stems"
;;;
;;; Compile the source file whose basic name is STEM, using some
-;;; standard-for-the-SBCL-build-process procedures to generate the full
-;;; pathnames of source file and object file. Return the pathname of the object
-;;; file for STEM. Several &KEY arguments are accepted:
+;;; standard-for-the-SBCL-build-process procedures to generate the
+;;; full pathnames of source file and object file. Return the pathname
+;;; of the object file for STEM. Several &KEY arguments are accepted:
;;; :SRC-PREFIX, :SRC-SUFFIX =
;;; strings to be concatenated to STEM to produce source filename
;;; :OBJ-PREFIX, :OBJ-SUFFIX =
;;; string to be appended to the name of an object file to produce
;;; the name of a temporary object file
;;; :COMPILE-FILE, :IGNORE-FAILURE-P =
-;;; :COMPILE-FILE is a function to use for compiling the file (with the
-;;; same calling conventions as ANSI CL:COMPILE-FILE). If the third
-;;; return value (FAILURE-P) of this function is true, a continuable
-;;; error will be signalled, unless :IGNORE-FAILURE-P is set, in which
-;;; case only a warning will be signalled.
+;;; :COMPILE-FILE is a function to use for compiling the file
+;;; (with the same calling conventions as ANSI CL:COMPILE-FILE).
+;;; If the third return value (FAILURE-P) of this function is
+;;; true, a continuable error will be signalled, unless
+;;; :IGNORE-FAILURE-P is set, in which case only a warning will be
+;;; signalled.
(defun compile-stem (stem
&key
(obj-prefix "")
(compile-file #'compile-file)
ignore-failure-p)
- (let* (;; KLUDGE: Note that this CONCATENATE 'STRING stuff is not The Common
- ;; Lisp Way, although it works just fine for common UNIX environments.
- ;; Should it come to pass that the system is ported to environments
- ;; where version numbers and so forth become an issue, it might become
- ;; urgent to rewrite this using the fancy Common Lisp PATHNAME
- ;; machinery instead of just using strings. In the absence of such a
- ;; port, it might or might be a good idea to do the rewrite.
- ;; -- WHN 19990815
- (src (concatenate 'string src-prefix stem src-suffix))
- (obj (concatenate 'string obj-prefix stem obj-suffix))
- (tmp-obj (concatenate 'string obj tmp-obj-suffix-suffix)))
-
- (ensure-directories-exist obj :verbose t)
-
- ;; We're about to set about building a new object file. First, we
- ;; delete any preexisting object file in order to avoid confusing
- ;; ourselves later should we happen to bail out of compilation with an
- ;; error.
- (when (probe-file obj)
- (delete-file obj))
-
- ;; Work around a bug in CLISP 1999-01-08 #'COMPILE-FILE: CLISP mangles
- ;; relative pathnames passed as :OUTPUT-FILE arguments, but works OK
- ;; with absolute pathnames.
- #+clisp
- (setf tmp-obj
- ;; (Note that this idiom is taken from the ANSI documentation
- ;; for TRUENAME.)
- (with-open-file (stream tmp-obj :direction :output)
- (close stream)
- (truename stream)))
-
- ;; Try to use the compiler to generate a new temporary object file.
- (multiple-value-bind (output-truename warnings-p failure-p)
- (funcall compile-file src :output-file tmp-obj)
- (declare (ignore warnings-p))
- (cond ((not output-truename)
- (error "couldn't compile ~S" src))
- (failure-p
- (if ignore-failure-p
- (warn "ignoring FAILURE-P return value from compilation of ~S"
- src)
- (unwind-protect
- (progn
- ;; FIXME: This should have another option, redoing
- ;; compilation.
- (cerror "Continue, using possibly-bogus ~S."
- "FAILURE-P was set when creating ~S."
- obj)
- (setf failure-p nil))
- ;; Don't leave failed object files lying around.
- (when (and failure-p (probe-file tmp-obj))
- (delete-file tmp-obj)
- (format t "~&deleted ~S~%" tmp-obj)))))
- ;; Otherwise: success, just fall through.
- (t nil)))
-
- ;; If we get to here, compilation succeeded, so it's OK to rename the
- ;; temporary output file to the permanent object file.
- (rename-file-a-la-unix tmp-obj obj)
-
- ;; nice friendly traditional return value
- (pathname obj)))
+ (declare (type function compile-file))
+
+ (let* (;; KLUDGE: Note that this CONCATENATE 'STRING stuff is not The Common
+ ;; Lisp Way, although it works just fine for common UNIX environments.
+ ;; Should it come to pass that the system is ported to environments
+ ;; where version numbers and so forth become an issue, it might become
+ ;; urgent to rewrite this using the fancy Common Lisp PATHNAME
+ ;; machinery instead of just using strings. In the absence of such a
+ ;; port, it might or might be a good idea to do the rewrite.
+ ;; -- WHN 19990815
+ (src (concatenate 'string src-prefix stem src-suffix))
+ (obj (concatenate 'string obj-prefix stem obj-suffix))
+ (tmp-obj (concatenate 'string obj tmp-obj-suffix-suffix)))
+
+ (ensure-directories-exist obj :verbose t)
+
+ ;; We're about to set about building a new object file. First, we
+ ;; delete any preexisting object file in order to avoid confusing
+ ;; ourselves later should we happen to bail out of compilation
+ ;; with an error.
+ (when (probe-file obj)
+ (delete-file obj))
+
+ ;; Original comment:
+ ;;
+ ;; Work around a bug in CLISP 1999-01-08 #'COMPILE-FILE: CLISP
+ ;; mangles relative pathnames passed as :OUTPUT-FILE arguments,
+ ;; but works OK with absolute pathnames.
+ ;;
+ ;; following discussion on cmucl-imp 2002-07
+ ;; "COMPILE-FILE-PATHNAME", it would seem safer to deal with
+ ;; absolute pathnames all the time; it is no longer clear that the
+ ;; original behaviour in CLISP was wrong or that the current
+ ;; behaviour is right; and in any case absolutifying the pathname
+ ;; insulates us against changes of behaviour. -- CSR, 2002-08-09
+ (setf tmp-obj
+ ;; (Note that this idiom is taken from the ANSI
+ ;; documentation for TRUENAME.)
+ (with-open-file (stream tmp-obj :direction :output)
+ (close stream)
+ (truename stream)))
+ ;; and some compilers (e.g. OpenMCL) will complain if they're
+ ;; asked to write over a file that exists already (and isn't
+ ;; recognizeably a fasl file), so
+ (when (probe-file tmp-obj)
+ (delete-file tmp-obj))
+
+ ;; Try to use the compiler to generate a new temporary object file.
+ (flet ((report-recompile-restart (stream)
+ (format stream "Recompile file ~S" src))
+ (report-continue-restart (stream)
+ (format stream "Continue, using possibly bogus file ~S" obj)))
+ (tagbody
+ retry-compile-file
+ (multiple-value-bind (output-truename warnings-p failure-p)
+ (funcall compile-file src :output-file tmp-obj)
+ (declare (ignore warnings-p))
+ (cond ((not output-truename)
+ (error "couldn't compile ~S" src))
+ (failure-p
+ (if ignore-failure-p
+ (warn "ignoring FAILURE-P return value from compilation of ~S"
+ src)
+ (unwind-protect
+ (restart-case
+ (error "FAILURE-P was set when creating ~S."
+ obj)
+ (recompile ()
+ :report report-recompile-restart
+ (go retry-compile-file))
+ (continue ()
+ :report report-continue-restart
+ (setf failure-p nil)))
+ ;; Don't leave failed object files lying around.
+ (when (and failure-p (probe-file tmp-obj))
+ (delete-file tmp-obj)
+ (format t "~&deleted ~S~%" tmp-obj)))))
+ ;; Otherwise: success, just fall through.
+ (t nil)))))
+
+ ;; If we get to here, compilation succeeded, so it's OK to rename
+ ;; the temporary output file to the permanent object file.
+ (rename-file-a-la-unix tmp-obj obj)
+
+ ;; nice friendly traditional return value
+ (pathname obj)))
(compile 'compile-stem)
;;; other miscellaneous tools
(format t
"target features *SHEBANG-FEATURES*=~@<~S~:>~%"
*shebang-features*))
+
+(defvar *shebang-backend-subfeatures*
+ (let* ((default-subfeatures nil)
+ (customizer-file-name "customize-backend-subfeatures.lisp")
+ (customizer (if (probe-file customizer-file-name)
+ (compile nil
+ (read-from-file customizer-file-name))
+ #'identity)))
+ (funcall customizer default-subfeatures)))
+(let ((*print-length* nil)
+ (*print-level* nil))
+ (format t
+ "target backend-subfeatures *SHEBANG-BACKEND-FEATURES*=~@<~S~:>~%"
+ *shebang-backend-subfeatures*))
\f
;;;; cold-init-related PACKAGE and SYMBOL tools
;;; values of special variables such as *** and +, anyway). Set up
;;; machinery to warn us when/if we change it.
;;;
-;;; FIXME: All this machinery should probably be conditional on
-;;; #!+SB-SHOW, i.e. we should be able to wrap #!+SB-SHOW around both
-;;; the LOAD and the DEFVAR here.
-(load "src/cold/snapshot.lisp")
-(defvar *cl-snapshot* (take-snapshot "COMMON-LISP"))
+;;; All code depending on this is itself dependent on #!+SB-SHOW.
+#!+sb-show
+(progn
+ (load "src/cold/snapshot.lisp")
+ (defvar *cl-snapshot* (take-snapshot "COMMON-LISP")))
\f
;;;; master list of source files and their properties
(defparameter
*expected-stem-flags*
'(;; meaning: This file is not to be compiled when building the
- ;; cross-compiler which runs on the host ANSI Lisp.
+ ;; cross-compiler which runs on the host ANSI Lisp. ("not host
+ ;; code", i.e. does not execute on host -- but may still be
+ ;; cross-compiled by the host, so that it executes on the target)
:not-host
;; meaning: This file is not to be compiled as part of the target
- ;; SBCL.
+ ;; SBCL. ("not target code" -- but still presumably host code,
+ ;; used to support the cross-compilation process)
:not-target
;; meaning: This file is to be processed with the SBCL assembler,
;; not COMPILE-FILE. (Note that this doesn't make sense unless
;; warnings and remove support for this flag. -- WHN 19990323)
:ignore-failure-p))
-(defparameter *stems-and-flags* (read-from-file "stems-and-flags.lisp-expr"))
+(defparameter *stems-and-flags* (read-from-file "build-order.lisp-expr"))
-(defmacro for-stems-and-flags ((stem flags) &body body)
+(defmacro do-stems-and-flags ((stem flags) &body body)
(let ((stem-and-flags (gensym "STEM-AND-FLAGS-")))
`(dolist (,stem-and-flags *stems-and-flags*)
(let ((,stem (first ,stem-and-flags))
;;; Check for stupid typos in FLAGS list keywords.
(let ((stems (make-hash-table :test 'equal)))
- (for-stems-and-flags (stem flags)
+ (do-stems-and-flags (stem flags)
(if (gethash stem stems)
- (error "duplicate stem ~S in stems-and-flags data" stem)
+ (error "duplicate stem ~S in *STEMS-AND-FLAGS*" stem)
(setf (gethash stem stems) t))
(let ((set-difference (set-difference flags *expected-stem-flags*)))
(when set-difference
(error "found unexpected flag(s) in *STEMS-AND-FLAGS*: ~S"
set-difference)))))
\f
-;;;; compiling SBCL sources to create the cross-compiler
+;;;; tools to compile SBCL sources to create the cross-compiler
;;; Execute function FN in an environment appropriate for compiling the
;;; cross-compiler's source code in the cross-compilation host.
(defun in-host-compilation-mode (fn)
- (let ((*features* (cons :sb-xc-host *features*)))
+ (declare (type function fn))
+ (let ((*features* (cons :sb-xc-host *features*))
+ ;; the CROSS-FLOAT-INFINITY-KLUDGE, as documented in
+ ;; base-target-features.lisp-expr:
+ (*shebang-features* (set-difference *shebang-features*
+ '(:sb-propagate-float-type
+ :sb-propagate-fun-type))))
(with-additional-nickname ("SB-XC" "SB!XC")
(funcall fn))))
(compile 'in-host-compilation-mode)
;;; (if necessary) in the appropriate environment, then loading it
;;; into the cross-compilation host Common lisp.
(defun host-cload-stem (stem &key ignore-failure-p)
- (load (in-host-compilation-mode
- (lambda ()
- (compile-stem stem
- :src-prefix *src-prefix*
- :obj-prefix *host-obj-prefix*
- :obj-suffix *host-obj-suffix*
- :compile-file #'cl:compile-file
- :ignore-failure-p ignore-failure-p)))))
+ (let ((compiled-filename (in-host-compilation-mode
+ (lambda ()
+ (compile-stem
+ stem
+ :obj-prefix *host-obj-prefix*
+ :obj-suffix *host-obj-suffix*
+ :compile-file #'cl:compile-file
+ :ignore-failure-p ignore-failure-p)))))
+ (load compiled-filename)))
(compile 'host-cload-stem)
-;;; Like HOST-CLOAD-STEM, except that we don't bother to compile.
+;;; like HOST-CLOAD-STEM, except that we don't bother to compile
(defun host-load-stem (stem &key ignore-failure-p)
(declare (ignore ignore-failure-p)) ; (It's only relevant when
;; compiling.) KLUDGE: It's untidy to have the knowledge of how to
(load (concatenate 'simple-string *host-obj-prefix* stem *host-obj-suffix*)))
(compile 'host-load-stem)
\f
-;;;; compiling SBCL sources to create object files which will be used
-;;;; to create the target SBCL .core file
+;;;; tools to compile SBCL sources to create object files which will
+;;;; be used to create the target SBCL .core file
;;; Run the cross-compiler on a file in the source directory tree to
;;; produce a corresponding file in the target object directory tree.
(funcall *in-target-compilation-mode-fn*
(lambda ()
(compile-stem stem
- :src-prefix *src-prefix*
:obj-prefix *target-obj-prefix*
:obj-suffix *target-obj-suffix*
:ignore-failure-p ignore-failure-p