forked from sbcl/sbcl
-
Notifications
You must be signed in to change notification settings - Fork 0
/
make-target-2-load.lisp
224 lines (205 loc) · 9.68 KB
/
make-target-2-load.lisp
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
;;; Do warm init without compiling files.
;;; There's a fair amount of machinery which is needed only at cold
;;; init time, and should be discarded before freezing the final
;;; system. We discard it by uninterning the associated symbols.
;;; Rather than using a special table of symbols to be uninterned,
;;; which might be tedious to maintain, instead we use a hack:
;;; anything whose name matches a magic character pattern is
;;; uninterned.
;;; Additionally, you can specify an arbitrary way to destroy
;;; random bootstrap stuff on per-package basis.
(defun !unintern-init-only-stuff (&aux result)
(dolist (package (list-all-packages))
(sb-int:binding* ((s (find-symbol "!UNINTERN-SYMBOLS" package)
:exit-if-null)
(list (funcall s))
(package (car list)))
(dolist (symbol (cdr list))
(fmakunbound symbol)
(unintern symbol package))))
sb-kernel::
(flet ((uninternable-p (symbol)
(let ((name (symbol-name symbol)))
(or (and (>= (length name) 1) (char= (char name 0) #\!))
(and (>= (length name) 2) (string= name "*!" :end1 2))
(memq symbol
'(sb-c::sb!pcl sb-c::sb!impl sb-c::sb!kernel
sb-c::sb!c sb-c::sb-int))))))
;; A structure constructor name, in particular !MAKE-SAETP,
;; can't be uninterned if referenced by a defstruct-description.
;; So loop over all structure classoids and clobber any
;; symbol that should be uninternable.
(maphash (lambda (classoid layout)
(when (structure-classoid-p classoid)
(let ((dd (layout-info layout)))
(setf (dd-constructors dd)
(delete-if (lambda (x)
(and (consp x) (uninternable-p (car x))))
(dd-constructors dd))))))
(classoid-subclasses (find-classoid t)))
;; Todo: perform one pass, then a full GC, then a final pass to confirm
;; it worked. It shoud be an error if any uninternable symbols remain,
;; but at present there are about 13 other "!" symbols with referers.
(with-package-iterator (iter (list-all-packages) :internal :external)
(loop (multiple-value-bind (winp symbol accessibility package) (iter)
(declare (ignore accessibility))
(unless winp
(return))
(when (uninternable-p symbol)
;; Uninternable symbols which are referenced by other stuff
;; can't disappear from the image, but we don't need to preserve
;; their functions, so FMAKUNBOUND them. This doesn't have
;; the intended effect if the function shares a code-component
;; with non-cold-init lambdas. Though the cold-init function is
;; never called post-build, it is not discarded. Also, I suspect
;; that the following loop should print nothing, but it does:
#|
(sb-vm::map-allocated-objects
(lambda (obj type size)
(declare (ignore size))
(when (= type sb-vm:code-header-widetag)
(let ((name (sb-c::debug-info-name
(sb-kernel:%code-debug-info obj))))
(when (and (stringp name) (search "COLD-INIT-FORMS" name))
(print obj)))))
:dynamic)
|#
(fmakunbound symbol)
(unintern symbol package))))))
result)
(progn
(defvar *compile-files-p* nil)
"about to LOAD warm.lisp (with *compile-files-p* = NIL)")
(progn
(load "src/cold/warm.lisp")
;;; Remove docstrings that snuck in, as will happen with
;;; any file compiled in warm load.
#-sb-doc
(let ((count 0))
(macrolet ((clear-it (place)
`(when ,place
(setf ,place nil)
(incf count))))
;; 1. Functions, macros, special operators
(sb-vm::map-allocated-objects
(lambda (obj type size)
(declare (ignore size))
(case type
(#.sb-vm:code-header-widetag
(dotimes (i (sb-kernel:code-n-entries obj))
(let ((f (sb-kernel:%code-entry-point obj i)))
(clear-it (sb-kernel:%simple-fun-doc f)))))
(#.sb-vm:instance-header-widetag
(when (typep obj 'class)
(when (slot-boundp obj 'sb-pcl::%documentation)
(clear-it (slot-value obj 'sb-pcl::%documentation)))))
(#.sb-vm:funcallable-instance-header-widetag
(when (typep obj 'standard-generic-function)
(when (slot-boundp obj 'sb-pcl::%documentation)
(clear-it (slot-value obj 'sb-pcl::%documentation)))))))
:all)
;; 2. Variables, types, and anything else
(do-all-symbols (s)
(dolist (category '(:variable :type :typed-structure :setf))
(clear-it (sb-int:info category :documentation s)))
(clear-it (sb-int:info :random-documentation :stuff s))))
(when (plusp count)
(format t "~&Removed ~D doc string~:P" count)))
;; Share identical FUN-INFOs
sb-int::
(let ((ht (make-hash-table :test 'equalp))
(old-count 0))
(sb-c::call-with-each-globaldb-name
(lambda (name)
(binding* ((info (info :function :info name) :exit-if-null)
(shared-info (gethash info ht info)))
(incf old-count)
(if (eq info shared-info)
(setf (gethash info ht) info)
(setf (info :function :info name) shared-info)))))
(format t "~&FUN-INFO: Collapsed ~D -> ~D~%"
old-count (hash-table-count ht)))
;; Share identical FUN-TYPEs.
(let ((ht (make-hash-table :test 'equal))
(raw-accessor
(compile nil '(lambda (f) (sb-vm::%%simple-fun-type f)))))
(sb-vm::map-allocated-objects
(lambda (obj type size)
(declare (ignore type size))
(when (sb-kernel:code-component-p obj)
(dotimes (i (sb-kernel:code-n-entries obj))
(let* ((f (sb-kernel:%code-entry-point obj i))
(type (funcall raw-accessor f)))
(setf (sb-kernel:%simple-fun-type f)
(or (gethash type ht) (setf (gethash type ht) type)))))))
:all))
(sb-disassem::!compile-inst-printers)
;; Unintern no-longer-needed stuff before the possible PURIFY in
;; SAVE-LISP-AND-DIE.
#-sb-fluid (!unintern-init-only-stuff)
;; A symbol whose INFO slot underwent any kind of manipulation
;; such that it now has neither properties nor globaldb info,
;; can have the slot set back to NIL if it wasn't already.
(do-all-symbols (symbol)
(when (and (sb-kernel:symbol-info symbol)
(null (sb-kernel:symbol-info-vector symbol))
(null (symbol-plist symbol)))
(setf (sb-kernel:symbol-info symbol) nil)))
;; Set doc strings for the standard packages.
#+sb-doc
(setf (documentation (find-package "COMMON-LISP") t)
"public: home of symbols defined by the ANSI language specification"
(documentation (find-package "COMMON-LISP-USER") t)
"public: the default package for user code and data"
(documentation (find-package "KEYWORD") t)
"public: home of keywords")
"done with warm.lisp, about to GC :FULL T")
(sb-ext:gc :full t)
;;; resetting compilation policy to neutral values in preparation for
;;; SAVE-LISP-AND-DIE as final SBCL core (not in warm.lisp because
;;; SB-C::*POLICY* has file scope)
(setq sb-c::*policy* (copy-structure sb-c::**baseline-policy**))
;;; Adjust READTABLE-BASE-CHAR-PREFERENCE back to the advertised default.
(dolist (rt (list sb-impl::*standard-readtable* *debug-readtable*))
(setf (readtable-base-char-preference rt) :symbols))
;;; Change the internal constructor's default too.
sb-kernel::(setf (dsd-default
(find 'sb-impl::%readtable-string-preference
(dd-slots (find-defstruct-description 'readtable))
:key #'dsd-name)) 'character)
;;; Lock internal packages
#+sb-package-locks
(dolist (p (list-all-packages))
(unless (member p (mapcar #'find-package '("KEYWORD" "CL-USER")))
(sb-ext:lock-package p)))
"done with warm.lisp, about to SAVE-LISP-AND-DIE"
;;; Even if /SHOW output was wanted during build, it's probably
;;; not wanted by default after build is complete. (And if it's
;;; wanted, it can easily be turned back on.)
#+sb-show (setf sb-int:*/show* nil)
;;; The system is complete now, all standard functions are
;;; defined.
;;; The call to CTYPE-OF-CACHE-CLEAR is probably redundant.
;;; SAVE-LISP-AND-DIE calls DEINIT which calls DROP-ALL-HASH-CACHES.
(sb-kernel::ctype-of-cache-clear)
(setq sb-c::*flame-on-necessarily-undefined-thing* t)
;;; Clean up stray symbols from the CL-USER package.
(with-package-iterator (iter "CL-USER" :internal :external)
(loop (multiple-value-bind (winp symbol) (iter)
(if winp (unintern symbol "CL-USER") (return)))))
;;; In case there is xref data for internals, repack it here to
;;; achieve a more compact encoding.
;;;
;;; However, repacking changes
;;; SB-C::**MOST-COMMON-XREF-NAMES-BY-{INDEX,NAME}** thereby changing
;;; the interpretation of xref data written into and loaded from
;;; fasls. Since fasls should be compatible between images originating
;;; from the same SBCL build, REPACK-XREF is of no use after the
;;; target image has been built.
#+sb-xref-for-internals (sb-c::repack-xref :verbose 1)
(with-unlocked-packages (#:sb-c)
(fmakunbound 'sb-c::repack-xref))
#+immobile-code (setq sb-c::*compile-to-memory-space* :dynamic)
#+sb-fasteval (setq sb-ext:*evaluator-mode* :interpret)
;; See comments in 'readtable.lisp'
(setf (readtable-base-char-preference *readtable*) :symbols)