-;;;
+;;;; miscellaneous VM definition noise for the PPC
+
+;;;; This software is part of the SBCL system. See the README file for
+;;;; more information.
+;;;;
+;;;; This software is derived from the CMU CL system, which was
+;;;; written at Carnegie Mellon University and released into the
+;;;; public domain. The software is in the public domain and is
+;;;; provided with absolutely no warranty. See the COPYING and CREDITS
+;;;; files for more information.
+
(in-package "SB!VM")
+;;; NUMBER-STACK-DISPLACEMENT
+;;;
+;;; The number of bytes reserved above the number stack pointer. These
+;;; slots are required by architecture, mostly (?) to make C backtrace
+;;; work. This must be a power of 2 - see BYTES-REQUIRED-FOR-NUMBER-STACK.
+;;;
+(def!constant number-stack-displacement
+ (* #!-darwin 2
+ #!+darwin 8
+ n-word-bytes))
\f
;;;; Define the registers
`(eval-when (:compile-toplevel :load-toplevel :execute)
(def!constant ,offset-sym ,offset)
(setf (svref *register-names* ,offset-sym) ,(symbol-name name)))))
-
+
(defregset (name &rest regs)
`(eval-when (:compile-toplevel :load-toplevel :execute)
(defparameter ,name
(defreg nl4 7)
(defreg nl5 8)
(defreg nl6 9)
- (defreg fdefn 10) ; was nl7
+ (defreg fdefn 10) ; was nl7
(defreg nargs 11)
- (defreg nfp 12)
- (defreg cfunc 13)
+ ;; FIXME: some kind of comment here would be nice.
+ ;;
+ ;; FIXME II: this also reveals the need to autogenerate lispregs.h
+ #!+darwin (defreg cfunc 12)
+ #!-darwin (defreg nfp 12)
+ #!+darwin (defreg nfp 13)
+ #!-darwin (defreg cfunc 13)
(defreg bsp 14)
(defreg cfp 15)
(defreg csp 16)
(defreg a3 27)
(defreg l0 28)
(defreg l1 29)
- (defreg l2 30)
+ (defreg #!-sb-thread l2 #!+sb-thread thread 30)
(defreg lip 31)
(defregset non-descriptor-regs
nl0 nl1 nl2 nl3 nl4 nl5 nl6 #+nil nl7 cfunc nargs nfp)
-
+
(defregset descriptor-regs
- fdefn a0 a1 a2 a3 ocfp lra cname lexenv l0 l1 l2 )
+ fdefn a0 a1 a2 a3 ocfp lra cname lexenv l0 l1 #!-sb-thread l2 )
+
-
(defregset *register-arg-offsets* a0 a1 a2 a3)
(defparameter register-arg-names '(a0 a1 a2 a3)))
;;;
;;; Handy macro so we don't have to keep changing all the numbers whenever
;;; we insert a new storage class.
-;;;
+;;;
(defmacro define-storage-classes (&rest classes)
(do ((forms (list 'progn)
- (let* ((class (car classes))
- (sc-name (car class))
- (constant-name (intern (concatenate 'simple-string
- (string sc-name)
- "-SC-NUMBER"))))
- (list* `(define-storage-class ,sc-name ,index
- ,@(cdr class))
- `(def!constant ,constant-name ,index)
- forms)))
+ (let* ((class (car classes))
+ (sc-name (car class))
+ (constant-name (intern (concatenate 'simple-string
+ (string sc-name)
+ "-SC-NUMBER"))))
+ (list* `(define-storage-class ,sc-name ,index
+ ,@(cdr class))
+ `(def!constant ,constant-name ,index)
+ forms)))
(index 0 (1+ index))
(classes classes (cdr classes)))
((null classes)
(nreverse forms))))
-;; XXX this is most likely wrong. Check with Eric Marsden next time you
-;; see him
-(def!constant sb!vm::kludge-nondeterministic-catch-block-size 7)
+(def!constant kludge-nondeterministic-catch-block-size 6)
(define-storage-classes
;; The control stack. (Scanned by GC)
(control-stack control-stack)
- ;; The non-descriptor stacks.
- (signed-stack non-descriptor-stack) ; (signed-byte 32)
- (unsigned-stack non-descriptor-stack) ; (unsigned-byte 32)
- (base-char-stack non-descriptor-stack) ; non-descriptor characters.
- (sap-stack non-descriptor-stack) ; System area pointers.
- (single-stack non-descriptor-stack) ; single-floats
- (double-stack non-descriptor-stack
- :element-size 2 :alignment 2) ; double floats.
- (complex-single-stack non-descriptor-stack :element-size 2)
- (complex-double-stack non-descriptor-stack :element-size 4 :alignment 2)
-
-
- ;; **** Things that can go in the integer registers.
+ ;; We put ANY-REG and DESCRIPTOR-REG early so that their SC-NUMBER
+ ;; is small and therefore the error trap information is smaller.
+ ;; Moving them up here from their previous place down below saves
+ ;; ~250K in core file size. --njf, 2006-01-27
;; Immediate descriptor objects. Don't have to be seen by GC, but nothing
;; bad will happen if they are. (fixnums, characters, header values, etc).
:save-p t
:alternate-scs (control-stack))
+ ;; The non-descriptor stacks.
+ (signed-stack non-descriptor-stack) ; (signed-byte 32)
+ (unsigned-stack non-descriptor-stack) ; (unsigned-byte 32)
+ (character-stack non-descriptor-stack) ; non-descriptor characters.
+ (sap-stack non-descriptor-stack) ; System area pointers.
+ (single-stack non-descriptor-stack) ; single-floats
+ (double-stack non-descriptor-stack
+ :element-size 2 :alignment 2) ; double floats.
+ (complex-single-stack non-descriptor-stack :element-size 2)
+ (complex-double-stack non-descriptor-stack :element-size 4 :alignment 2)
+
+
+ ;; **** Things that can go in the integer registers.
+
;; Non-Descriptor characters
- (base-char-reg registers
+ (character-reg registers
:locations #.non-descriptor-regs
:constant-scs (immediate)
:save-p t
- :alternate-scs (base-char-stack))
+ :alternate-scs (character-stack))
;; Non-Descriptor SAP's (arbitrary pointers into address space)
(sap-reg registers
;; A catch or unwind block.
(catch-block control-stack
- :element-size sb!vm::kludge-nondeterministic-catch-block-size))
-
-
+ :element-size kludge-nondeterministic-catch-block-size))
\f
;;;; Make some random tns for important registers.
(defregtn null descriptor-reg)
(defregtn code descriptor-reg)
(defregtn alloc any-reg)
-
+ (defregtn lra descriptor-reg)
+ (defregtn lexenv descriptor-reg)
+
(defregtn nargs any-reg)
(defregtn bsp any-reg)
(defregtn csp any-reg)
(sc-number-or-lose 'zero))
(null
(sc-number-or-lose 'null))
- ((or fixnum system-area-pointer character)
+ ((or (integer #.sb!xc:most-negative-fixnum #.sb!xc:most-positive-fixnum)
+ character)
(sc-number-or-lose 'immediate))
(symbol
(if (static-symbol-p value)
- (sc-number-or-lose 'immediate)
- nil))))
+ (sc-number-or-lose 'immediate)
+ nil))))
+
+(!def-vm-support-routine boxed-immediate-sc-p (sc)
+ (or (eql sc (sc-number-or-lose 'zero))
+ (eql sc (sc-number-or-lose 'null))
+ (eql sc (sc-number-or-lose 'immediate))))
+
+;;; A predicate to see if a character can be used as an inline
+;;; constant (the immediate field in the instruction used is sixteen
+;;; bits wide, which is not the same as any defined subtype of
+;;; CHARACTER).
+(defun inlinable-character-constant-p (char)
+ (and (characterp char)
+ (< (char-code char) #x10000)))
\f
;;;; function call parameters
;;;
(defparameter *register-arg-tns*
(mapcar #'(lambda (n)
- (make-random-tn :kind :normal
- :sc (sc-or-lose 'descriptor-reg)
- :offset n))
- *register-arg-offsets*))
+ (make-random-tn :kind :normal
+ :sc (sc-or-lose 'descriptor-reg)
+ :offset n))
+ *register-arg-offsets*))
+
+#!+sb-thread
+(defparameter thread-base-tn
+ (make-random-tn :kind :normal :sc (sc-or-lose 'unsigned-reg)
+ :offset thread-offset))
(export 'single-value-return-byte-offset)
(!def-vm-support-routine location-print-name (tn)
(declare (type tn tn))
(let ((sb (sb-name (sc-sb (tn-sc tn))))
- (offset (tn-offset tn)))
+ (offset (tn-offset tn)))
(ecase sb
(registers (or (svref *register-names* offset)
- (format nil "R~D" offset)))
+ (format nil "R~D" offset)))
(float-registers (format nil "F~D" offset))
(control-stack (format nil "CS~D" offset))
(non-descriptor-stack (format nil "NS~D" offset))
(constant (format nil "Const~D" offset))
(immediate-constant "Immed"))))
-\f
-;;; The loader uses this to convert alien names to the form they
-;;; occur in the symbol table. This is ELF, so do nothing.
-(defun extern-alien-name (name)
- (declare (type simple-base-string name))
- name)
+(!def-vm-support-routine combination-implementation-style (node)
+ (declare (type sb!c::combination node))
+ (flet ((valid-funtype (args result)
+ (sb!c::valid-fun-use node
+ (sb!c::specifier-type
+ `(function ,args ,result)))))
+ (case (sb!c::combination-fun-source-name node)
+ (logtest
+ (cond
+ ((or (valid-funtype '(fixnum fixnum) '*)
+ (valid-funtype '((signed-byte 32) (signed-byte 32)) '*)
+ (valid-funtype '((unsigned-byte 32) (unsigned-byte 32)) '*))
+ (values :maybe nil))
+ (t (values :default nil))))
+ (logbitp
+ (cond
+ ((or (valid-funtype '((constant-arg (integer 0 29)) fixnum) '*)
+ (valid-funtype '((constant-arg (integer 0 31)) (signed-byte 32)) '*)
+ (valid-funtype '((constant-arg (integer 0 31)) (unsigned-byte 32)) '*))
+ (values :transform '(lambda (index integer)
+ (%logbitp integer index))))
+ (t (values :default nil))))
+ ;; FIXME: can handle MIN and MAX here
+ (sb!kernel:%ldb
+ (flet ((validp (type width)
+ (and (valid-funtype `((constant-arg (integer 1 29))
+ (constant-arg (mod ,width))
+ ,type)
+ 'fixnum)
+ (destructuring-bind (size posn integer)
+ (sb!c::basic-combination-args node)
+ (declare (ignore integer))
+ (<= (+ (sb!c::lvar-value size)
+ (sb!c::lvar-value posn))
+ width)))))
+ (if (or (validp 'fixnum 29)
+ (validp '(signed-byte 32) 32)
+ (validp '(unsigned-byte 32) 32))
+ (values :transform '(lambda (size posn integer)
+ (%%ldb integer size posn)))
+ (values :default nil))))
+ (t (values :default nil)))))
+
+(defun primitive-type-indirect-cell-type (ptype)
+ (declare (ignore ptype))
+ nil)
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