;;; which might be tedious to maintain, instead we use a hack:
;;; anything whose name matches a magic character pattern is
;;; uninterned.
+;;;
+;;; FIXME: Are there other tables that need to have entries removed?
+;;; What about symbols of the form DEF!FOO?
(defun !unintern-init-only-stuff ()
(do ((any-changes? nil nil))
(nil)
(string= name "*!" :end1 2 :end2 2)))
(/show0 "uninterning cold-init-only symbol..")
(/primitive-print name)
+ ;; FIXME: Is this (FIRST (LAST *INFO-ENVIRONMENT*)) really
+ ;; meant to be an idiom to use? Is there a more obvious
+ ;; name for this? [e.g. (GLOBAL-ENVIRONMENT)?]
+ (do-info ((first (last *info-environment*))
+ :name entry :class class :type type)
+ (when (eq entry symbol)
+ (clear-info class type entry)))
(unintern symbol package)
(setf any-changes? t)))))
(unless any-changes?
(return))))
\f
+;;;; putting ourselves out of our misery when things become too much to bear
+
+(declaim (ftype (function (simple-string) nil) critically-unreachable))
+(defun !cold-lose (msg)
+ (%primitive print msg)
+ (%primitive print "too early in cold init to recover from errors")
+ (%halt))
+
+;;; last-ditch error reporting for things which should never happen
+;;; and which, if they do happen, are sufficiently likely to torpedo
+;;; the normal error-handling system that we want to bypass it
+(declaim (ftype (function (simple-string) nil) critically-unreachable))
+(defun critically-unreachable (where)
+ (%primitive print "internal error: Control should never reach here, i.e.")
+ (%primitive print where)
+ (%halt))
+\f
;;;; !COLD-INIT
;;; a list of toplevel things set by GENESIS
;;; a SIMPLE-VECTOR set by GENESIS
(defvar *!load-time-values*)
-(defun !cold-lose (msg)
- (%primitive print msg)
- (%primitive print "too early in cold init to recover from errors")
- (%halt))
-
(eval-when (:compile-toplevel :execute)
;; FIXME: Perhaps we should make SHOW-AND-CALL-AND-FMAKUNBOUND, too,
;; and use it for most of the cold-init functions. (Just be careful
(setf *gc-notify-stream* nil
*before-gc-hooks* nil
*after-gc-hooks* nil
- *already-maybe-gcing* t
- *gc-inhibit* t
+ *gc-inhibit* 1
*need-to-collect-garbage* nil
sb!unix::*interrupts-enabled* t
sb!unix::*interrupt-pending* nil
*cold-init-complete-p* nil
*type-system-initialized* nil)
+ (show-and-call !typecheckfuns-cold-init)
+
;; Anyone might call RANDOM to initialize a hash value or something;
;; and there's nothing which needs to be initialized in order for
;; this to be initialized, so we initialize it right away.
(show-and-call !random-cold-init)
(show-and-call !package-cold-init)
-
+
;; All sorts of things need INFO and/or (SETF INFO).
(/show0 "about to SHOW-AND-CALL !GLOBALDB-COLD-INIT")
(show-and-call !globaldb-cold-init)
;; This needs to be done early, but needs to be after INFO is
;; initialized.
+ (show-and-call !function-names-cold-init)
(show-and-call !fdefn-cold-init)
;; Various toplevel forms call MAKE-ARRAY, which calls SUBTYPEP, so
(setf (svref *!load-time-values* (third toplevel-thing))
(funcall (second toplevel-thing))))
(:load-time-value-fixup
- #!-gengc
(setf (sap-ref-32 (second toplevel-thing) 0)
(get-lisp-obj-address
(svref *!load-time-values* (third toplevel-thing)))))
#!+(and x86 gencgc)
(:load-time-code-fixup
- (sb!vm::!do-load-time-code-fixup (second toplevel-thing)
- (third toplevel-thing)
- (fourth toplevel-thing)
- (fifth toplevel-thing)))
+ (sb!vm::!envector-load-time-code-fixup (second toplevel-thing)
+ (third toplevel-thing)
+ (fourth toplevel-thing)
+ (fifth toplevel-thing)))
(t
(!cold-lose "bogus fixup code in *!REVERSED-COLD-TOPLEVELS*"))))
(t (!cold-lose "bogus function in *!REVERSED-COLD-TOPLEVELS*")))))
;; FIXME: This list of modes should be defined in one place and
;; explicitly shared between here and REINIT.
- ;;
- ;; FIXME: In CMU CL, this is done "here" (i.e. in the analogous
- ;; lispinit.lisp code) for every processor architecture. But Daniel
- ;; Barlow's Alpha patches suppress it for Alpha. Why the difference?
- #!+alpha
- (set-floating-point-modes :traps '(:overflow
- #!-x86 :underflow
- :invalid
- :divide-by-zero))
+
+ ;; Why was this marked #!+alpha? CMUCL does it here on all architectures
+ (set-floating-point-modes :traps '(:overflow :invalid :divide-by-zero))
(show-and-call !class-finalize)
;; the ANSI-specified initial value of *PACKAGE*
(setf *package* (find-package "COMMON-LISP-USER"))
- ;; FIXME: I'm not sure where it should be done, but CL-USER really
- ;; ought to USE-PACKAGE publicly accessible packages like SB-DEBUG
- ;; (for ARG and VAR), SB-EXT, SB-EXT-C-CALL, and SB-EXT-ALIEN so
- ;; that the user has a hint about which symbols we consider public.
- ;; (Perhaps SB-DEBUG wouldn't need to be in the list if ARG and VAR
- ;; could be typed directly, with no parentheses, at the debug prompt
- ;; the way that e.g. F or BACKTRACE can be?)
(/show0 "done initializing, setting *COLD-INIT-COMPLETE-P*")
(setf *cold-init-complete-p* t)
;; The system is finally ready for GC.
- #!-gengc (setf *already-maybe-gcing* nil)
(/show0 "enabling GC")
(gc-on)
(/show0 "doing first GC")
(terpri)
(/show0 "going into toplevel loop")
(handling-end-of-the-world
- (toplevel-init)))
+ (toplevel-init)
+ (critically-unreachable "after TOPLEVEL-INIT")))
(defun quit (&key recklessly-p
(unix-code 0 unix-code-p)
"Terminate the current Lisp. Things are cleaned up (with UNWIND-PROTECT
and so forth) unless RECKLESSLY-P is non-NIL. On UNIX-like systems,
UNIX-STATUS is used as the status code."
- (declare (type (signed-byte 32) unix-code))
+ (declare (type (signed-byte 32) unix-status unix-code))
+ (/show0 "entering QUIT")
;; FIXME: UNIX-CODE was deprecated in sbcl-0.6.8, after having been
;; around for less than a year. It should be safe to remove it after
;; a year.
instead (which is another name for the same thing)."))
(if recklessly-p
(sb!unix:unix-exit unix-status)
- (throw '%end-of-the-world unix-status)))
+ (throw '%end-of-the-world unix-status))
+ (critically-unreachable "after trying to die in QUIT"))
\f
;;;; initialization functions
(os-cold-init-or-reinit)
(stream-reinit)
(signal-cold-init-or-reinit)
- (gc-reinit)
(setf (sb!alien:extern-alien "internal_errors_enabled" boolean) t)
- (set-floating-point-modes :traps
- '(:overflow
- :invalid
- :divide-by-zero
- ;; PRINT seems not to like x86 NPX
- ;; denormal floats like
- ;; LEAST-NEGATIVE-SINGLE-FLOAT, so
- ;; the :UNDERFLOW exceptions are
- ;; disabled by default. Joe User can
- ;; explicitly enable them if
- ;; desired.
- #!-x86 :underflow))
+ ;; PRINT seems not to like x86 NPX denormal floats like
+ ;; LEAST-NEGATIVE-SINGLE-FLOAT, so the :UNDERFLOW exceptions are
+ ;; disabled by default. Joe User can explicitly enable them if
+ ;; desired.
+ (set-floating-point-modes :traps '(:overflow :invalid :divide-by-zero))
+
;; Clear pseudo atomic in case this core wasn't compiled with
;; support.
;;
;; reason.. (Perhaps we should do it anyway in case someone
;; manages to save an image from within a pseudo-atomic-atomic
;; operation?)
- #!+x86 (setf *pseudo-atomic-atomic* 0))
- (gc-on)))
+ #!+x86 (setf *pseudo-atomic-atomic* 0)))
+ (gc-on)
+ (gc))
\f
;;;; some support for any hapless wretches who end up debugging cold
;;;; init code
#!+sb-show
(defun hexstr (thing)
(/noshow0 "entering HEXSTR")
- (let ((addr (sb!kernel:get-lisp-obj-address thing))
+ (let ((addr (get-lisp-obj-address thing))
(str (make-string 10)))
(/noshow0 "ADDR and STR calculated")
(setf (char str 0) #\0
projects / sbcl.git / blobdiff