(defmacro load-symbol-value (reg symbol)
`(inst ldw
- (+ (static-symbol-offset ',symbol)
- (ash symbol-value-slot word-shift)
- (- other-pointer-lowtag))
- null-tn
- ,reg))
+ (+ (static-symbol-offset ',symbol)
+ (ash symbol-value-slot word-shift)
+ (- other-pointer-lowtag))
+ null-tn
+ ,reg))
(defmacro store-symbol-value (reg symbol)
`(inst stw ,reg (+ (static-symbol-offset ',symbol)
- (ash symbol-value-slot word-shift)
- (- other-pointer-lowtag))
- null-tn))
+ (ash symbol-value-slot word-shift)
+ (- other-pointer-lowtag))
+ null-tn))
(defmacro load-type (target source &optional (offset 0))
"Loads the type bits of a pointer into target independent of
(:little-endian
`(inst ldb ,offset ,source ,target))
(:big-endian
- `(inst ldb (+ ,offset 3) ,source ,target))))
+ `(inst ldb (+ ,offset (1- n-word-bytes)) ,source ,target))))
;;; Macros to handle the fact that we cannot use the machine native call and
-;;; return instructions.
+;;; return instructions.
(defmacro lisp-jump (function)
"Jump to the lisp function FUNCTION. LIP is an interior-reg temporary."
`(progn
(inst addi
- (- (ash simple-fun-code-offset word-shift) fun-pointer-lowtag)
- ,function
- lip-tn)
+ (- (ash simple-fun-code-offset word-shift) fun-pointer-lowtag)
+ ,function
+ lip-tn)
(inst bv lip-tn)
(move ,function code-tn)))
"Return to RETURN-PC."
`(progn
(inst addi (- (* (1+ ,offset) n-word-bytes) other-pointer-lowtag)
- ,return-pc lip-tn)
+ ,return-pc lip-tn)
(inst bv lip-tn ,@(unless frob-code '(:nullify t)))
,@(when frob-code
- `((move ,return-pc code-tn)))))
+ `((move ,return-pc code-tn)))))
(defmacro emit-return-pc (label)
"Emit a return-pc header word. LABEL is the label to use for this
\f
;;;; Stack TN's
-;;; Load-Stack-TN, Store-Stack-TN -- Interface
-;;;
-;;; Move a stack TN to a register and vice-versa.
+;;; Move a stack TN to a register and vice-versa.
(defmacro load-stack-tn (reg stack)
`(let ((reg ,reg)
- (stack ,stack))
+ (stack ,stack))
(let ((offset (tn-offset stack)))
(sc-case stack
- ((control-stack)
- (loadw reg cfp-tn offset))))))
-
+ ((control-stack)
+ (loadw reg cfp-tn offset))))))
(defmacro store-stack-tn (stack reg)
`(let ((stack ,stack)
- (reg ,reg))
+ (reg ,reg))
(let ((offset (tn-offset stack)))
(sc-case stack
- ((control-stack)
- (storew reg cfp-tn offset))))))
+ ((control-stack)
+ (storew reg cfp-tn offset))))))
(defmacro maybe-load-stack-tn (reg reg-or-stack)
"Move the TN Reg-Or-Stack into Reg if it isn't already there."
(once-only ((n-reg reg)
- (n-stack reg-or-stack))
+ (n-stack reg-or-stack))
`(sc-case ,n-reg
((any-reg descriptor-reg)
- (sc-case ,n-stack
- ((any-reg descriptor-reg)
- (move ,n-stack ,n-reg))
- ((control-stack)
- (loadw ,n-reg cfp-tn (tn-offset ,n-stack))))))))
+ (sc-case ,n-stack
+ ((any-reg descriptor-reg)
+ (move ,n-stack ,n-reg))
+ ((control-stack)
+ (loadw ,n-reg cfp-tn (tn-offset ,n-stack))))))))
\f
;;;; Storage allocation:
(defmacro with-fixed-allocation ((result-tn temp-tn type-code size)
- &body body)
+ &body body)
"Do stuff to allocate an other-pointer object of fixed Size with a single
word header having the specified Type-Code. The result is placed in
Result-TN, and Temp-TN is a non-descriptor temp (which may be randomly used
by the body.) The body is placed inside the PSEUDO-ATOMIC, and presumably
initializes the object."
+ (unless body
+ (bug "empty &body in WITH-FIXED-ALLOCATION"))
(once-only ((result-tn result-tn) (temp-tn temp-tn)
- (type-code type-code) (size size))
+ (type-code type-code) (size size))
`(pseudo-atomic (:extra (pad-data-block ,size))
(inst move alloc-tn ,result-tn)
(inst dep other-pointer-lowtag 31 3 ,result-tn)
(defun emit-error-break (vop kind code values)
(let ((vector (gensym)))
`((let ((vop ,vop))
- (when vop
- (note-this-location vop :internal-error)))
- (inst break ,kind)
- (with-adjustable-vector (,vector)
- (write-var-integer (error-number-or-lose ',code) ,vector)
- ,@(mapcar #'(lambda (tn)
- `(let ((tn ,tn))
- (write-var-integer (make-sc-offset (sc-number
- (tn-sc tn))
- (tn-offset tn))
- ,vector)))
- values)
- (inst byte (length ,vector))
- (dotimes (i (length ,vector))
- (inst byte (aref ,vector i))))
- (align word-shift)))))
+ (when vop
+ (note-this-location vop :internal-error)))
+ (inst break ,kind)
+ (with-adjustable-vector (,vector)
+ (write-var-integer (error-number-or-lose ',code) ,vector)
+ ,@(mapcar #'(lambda (tn)
+ `(let ((tn ,tn))
+ (write-var-integer (make-sc-offset (sc-number
+ (tn-sc tn))
+ (tn-offset tn))
+ ,vector)))
+ values)
+ (inst byte (length ,vector))
+ (dotimes (i (length ,vector))
+ (inst byte (aref ,vector i))))
+ (align word-shift)))))
(defmacro error-call (vop error-code &rest values)
"Cause an error. ERROR-CODE is the error to cause."
(cons 'progn
- (emit-error-break vop error-trap error-code values)))
+ (emit-error-break vop error-trap error-code values)))
(defmacro cerror-call (vop label error-code &rest values)
Emit code for a continuable error with the specified Error-Code and
context Values. If the error is continued, execution resumes after
the GENERATE-CERROR-CODE form."
- (let ((continue (gensym "CONTINUE-LABEL-"))
- (error (gensym "ERROR-LABEL-")))
+ (with-unique-names (continue error)
`(let ((,continue (gen-label)))
(emit-label ,continue)
(assemble (*elsewhere*)
- (let ((,error (gen-label)))
- (emit-label ,error)
- (cerror-call ,vop ,continue ,error-code ,@values)
- ,error)))))
-
-
+ (let ((,error (gen-label)))
+ (emit-label ,error)
+ (cerror-call ,vop ,continue ,error-code ,@values)
+ ,error)))))
\f
-;;; PSEUDO-ATOMIC -- Handy macro for making sequences look atomic.
-;;;
+;;;; PSEUDO-ATOMIC
+
+;;; handy macro for making sequences look atomic
(defmacro pseudo-atomic ((&key (extra 0)) &rest forms)
(let ((n-extra (gensym)))
`(let ((,n-extra ,extra))
(inst addi 4 alloc-tn alloc-tn)
,@forms
(inst addit (- ,n-extra 4) alloc-tn alloc-tn :od))))
-
-
\f
-;;;; Indexed references:
+;;;; indexed references
(deftype load/store-index (scale lowtag min-offset
- &optional (max-offset min-offset))
+ &optional (max-offset min-offset))
`(integer ,(- (truncate (+ (ash 1 14)
- (* min-offset n-word-bytes)
- (- lowtag))
- scale))
- ,(truncate (- (+ (1- (ash 1 14)) lowtag)
- (* max-offset n-word-bytes))
- scale)))
+ (* min-offset n-word-bytes)
+ (- lowtag))
+ scale))
+ ,(truncate (- (+ (1- (ash 1 14)) lowtag)
+ (* max-offset n-word-bytes))
+ scale)))
(defmacro define-full-reffer (name type offset lowtag scs el-type
- &optional translate)
+ &optional translate)
`(progn
(define-vop (,name)
,@(when translate
- `((:translate ,translate)))
+ `((:translate ,translate)))
(:policy :fast-safe)
(:args (object :scs (descriptor-reg) :to (:eval 0))
- (index :scs (any-reg) :target temp))
+ (index :scs (any-reg) :target temp))
(:arg-types ,type tagged-num)
(:temporary (:scs (non-descriptor-reg) :from (:argument 1)) temp)
(:results (value :scs ,scs))
(:result-types ,el-type)
(:generator 5
- (inst addi (- (* ,offset n-word-bytes) ,lowtag) index temp)
- (inst ldwx temp object value)))
+ (inst addi (- (* ,offset n-word-bytes) ,lowtag) index temp)
+ (inst ldwx temp object value)))
(define-vop (,(symbolicate name "-C"))
,@(when translate
- `((:translate ,translate)))
+ `((:translate ,translate)))
(:policy :fast-safe)
(:args (object :scs (descriptor-reg)))
(:info index)
(:arg-types ,type
- (:constant (load/store-index ,n-word-bytes ,(eval lowtag)
- ,(eval offset))))
+ (:constant (load/store-index ,n-word-bytes ,(eval lowtag)
+ ,(eval offset))))
(:results (value :scs ,scs))
(:result-types ,el-type)
(:generator 4
- (inst ldw (- (* (+ ,offset index) n-word-bytes) ,lowtag)
- object value)))))
+ (inst ldw (- (* (+ ,offset index) n-word-bytes) ,lowtag)
+ object value)))))
(defmacro define-full-setter (name type offset lowtag scs el-type
- &optional translate)
+ &optional translate)
`(progn
(define-vop (,name)
,@(when translate
- `((:translate ,translate)))
+ `((:translate ,translate)))
(:policy :fast-safe)
(:args (object :scs (descriptor-reg))
- (index :scs (any-reg))
- (value :scs ,scs :target result))
+ (index :scs (any-reg))
+ (value :scs ,scs :target result))
(:arg-types ,type tagged-num ,el-type)
(:temporary (:scs (interior-reg)) lip)
(:results (result :scs ,scs))
(:result-types ,el-type)
(:generator 2
- (inst add object index lip)
- (inst stw value (- (* ,offset n-word-bytes) ,lowtag) lip)
- (move value result)))
+ (inst add object index lip)
+ (inst stw value (- (* ,offset n-word-bytes) ,lowtag) lip)
+ (move value result)))
(define-vop (,(symbolicate name "-C"))
,@(when translate
- `((:translate ,translate)))
+ `((:translate ,translate)))
(:policy :fast-safe)
(:args (object :scs (descriptor-reg))
- (value :scs ,scs))
+ (value :scs ,scs))
(:info index)
(:arg-types ,type
- (:constant (load/store-index ,n-word-bytes ,(eval lowtag)
- ,(eval offset)))
- ,el-type)
+ (:constant (load/store-index ,n-word-bytes ,(eval lowtag)
+ ,(eval offset)))
+ ,el-type)
(:results (result :scs ,scs))
(:result-types ,el-type)
(:generator 1
- (inst stw value (- (* (+ ,offset index) n-word-bytes) ,lowtag) object)
- (move value result)))))
+ (inst stw value (- (* (+ ,offset index) n-word-bytes) ,lowtag) object)
+ (move value result)))))
(defmacro define-partial-reffer (name type size signed offset lowtag scs
- el-type &optional translate)
+ el-type &optional translate)
(let ((scale (ecase size (:byte 1) (:short 2))))
`(progn
(define-vop (,name)
- ,@(when translate
- `((:translate ,translate)))
- (:policy :fast-safe)
- (:args (object :scs (descriptor-reg) :to (:eval 0))
- (index :scs (unsigned-reg)))
- (:arg-types ,type positive-fixnum)
- (:results (value :scs ,scs))
- (:result-types ,el-type)
- (:temporary (:scs (interior-reg)) lip)
- (:generator 5
- (inst ,(ecase size (:byte 'add) (:short 'sh1add))
- index object lip)
- (inst ,(ecase size (:byte 'ldb) (:short 'ldh))
- (- (* ,offset n-word-bytes) ,lowtag) lip value)
- ,@(when signed
- `((inst extrs value 31 ,(* scale n-byte-bits) value)))))
+ ,@(when translate
+ `((:translate ,translate)))
+ (:policy :fast-safe)
+ (:args (object :scs (descriptor-reg) :to (:eval 0))
+ (index :scs (unsigned-reg)))
+ (:arg-types ,type positive-fixnum)
+ (:results (value :scs ,scs))
+ (:result-types ,el-type)
+ (:temporary (:scs (interior-reg)) lip)
+ (:generator 5
+ (inst ,(ecase size (:byte 'add) (:short 'sh1add))
+ index object lip)
+ (inst ,(ecase size (:byte 'ldb) (:short 'ldh))
+ (- (* ,offset n-word-bytes) ,lowtag) lip value)
+ ,@(when signed
+ `((inst extrs value 31 ,(* scale n-byte-bits) value)))))
(define-vop (,(symbolicate name "-C"))
- ,@(when translate
- `((:translate ,translate)))
- (:policy :fast-safe)
- (:args (object :scs (descriptor-reg)))
- (:info index)
- (:arg-types ,type
- (:constant (load/store-index ,scale
- ,(eval lowtag)
- ,(eval offset))))
- (:results (value :scs ,scs))
- (:result-types ,el-type)
- (:generator 5
- (inst ,(ecase size (:byte 'ldb) (:short 'ldh))
- (- (+ (* ,offset n-word-bytes) (* index ,scale)) ,lowtag)
- object value)
- ,@(when signed
- `((inst extrs value 31 ,(* scale n-byte-bits) value))))))))
+ ,@(when translate
+ `((:translate ,translate)))
+ (:policy :fast-safe)
+ (:args (object :scs (descriptor-reg)))
+ (:info index)
+ (:arg-types ,type
+ (:constant (load/store-index ,scale
+ ,(eval lowtag)
+ ,(eval offset))))
+ (:results (value :scs ,scs))
+ (:result-types ,el-type)
+ (:generator 5
+ (inst ,(ecase size (:byte 'ldb) (:short 'ldh))
+ (- (+ (* ,offset n-word-bytes) (* index ,scale)) ,lowtag)
+ object value)
+ ,@(when signed
+ `((inst extrs value 31 ,(* scale n-byte-bits) value))))))))
(defmacro define-partial-setter (name type size offset lowtag scs el-type
- &optional translate)
+ &optional translate)
(let ((scale (ecase size (:byte 1) (:short 2))))
`(progn
(define-vop (,name)
- ,@(when translate
- `((:translate ,translate)))
- (:policy :fast-safe)
- (:args (object :scs (descriptor-reg))
- (index :scs (unsigned-reg))
- (value :scs ,scs :target result))
- (:arg-types ,type positive-fixnum ,el-type)
- (:temporary (:scs (interior-reg)) lip)
- (:results (result :scs ,scs))
- (:result-types ,el-type)
- (:generator 5
- (inst ,(ecase size (:byte 'add) (:short 'sh1add))
- index object lip)
- (inst ,(ecase size (:byte 'stb) (:short 'sth))
- value (- (* ,offset n-word-bytes) ,lowtag) lip)
- (move value result)))
+ ,@(when translate
+ `((:translate ,translate)))
+ (:policy :fast-safe)
+ (:args (object :scs (descriptor-reg))
+ (index :scs (unsigned-reg))
+ (value :scs ,scs :target result))
+ (:arg-types ,type positive-fixnum ,el-type)
+ (:temporary (:scs (interior-reg)) lip)
+ (:results (result :scs ,scs))
+ (:result-types ,el-type)
+ (:generator 5
+ (inst ,(ecase size (:byte 'add) (:short 'sh1add))
+ index object lip)
+ (inst ,(ecase size (:byte 'stb) (:short 'sth))
+ value (- (* ,offset n-word-bytes) ,lowtag) lip)
+ (move value result)))
(define-vop (,(symbolicate name "-C"))
- ,@(when translate
- `((:translate ,translate)))
- (:policy :fast-safe)
- (:args (object :scs (descriptor-reg))
- (value :scs ,scs :target result))
- (:info index)
- (:arg-types ,type
- (:constant (load/store-index ,scale
- ,(eval lowtag)
- ,(eval offset)))
- ,el-type)
- (:results (result :scs ,scs))
- (:result-types ,el-type)
- (:generator 5
- (inst ,(ecase size (:byte 'stb) (:short 'sth))
- value
- (- (+ (* ,offset n-word-bytes) (* index ,scale)) ,lowtag)
- object)
- (move value result))))))
-
+ ,@(when translate
+ `((:translate ,translate)))
+ (:policy :fast-safe)
+ (:args (object :scs (descriptor-reg))
+ (value :scs ,scs :target result))
+ (:info index)
+ (:arg-types ,type
+ (:constant (load/store-index ,scale
+ ,(eval lowtag)
+ ,(eval offset)))
+ ,el-type)
+ (:results (result :scs ,scs))
+ (:result-types ,el-type)
+ (:generator 5
+ (inst ,(ecase size (:byte 'stb) (:short 'sth))
+ value
+ (- (+ (* ,offset n-word-bytes) (* index ,scale)) ,lowtag)
+ object)
+ (move value result))))))
+
+
+(defmacro sb!sys::with-pinned-objects ((&rest objects) &body body)
+ "Arrange with the garbage collector that the pages occupied by
+OBJECTS will not be moved in memory for the duration of BODY.
+Useful for e.g. foreign calls where another thread may trigger
+garbage collection. This is currently implemented by disabling GC"
+ (declare (ignore objects)) ;should we eval these for side-effect?
+ `(without-gcing
+ ,@body))
projects / sbcl.git / blobdiff