(in-package "SB!VM")
-;;; We can load/store into fp registers through the top of stack
-;;; %st(0) (fr0 here). Loads imply a push to an empty register which
-;;; then changes all the reg numbers. These macros help manage that.
-
-;;; Use this when we don't have to load anything. It preserves old tos
-;;; value, but probably destroys tn with operation.
-(defmacro with-tn@fp-top((tn) &body body)
- `(progn
- (unless (zerop (tn-offset ,tn))
- (inst fxch ,tn))
- ,@body
- (unless (zerop (tn-offset ,tn))
- (inst fxch ,tn))))
-
-;;; Use this to prepare for load of new value from memory. This
-;;; changes the register numbering so the next instruction had better
-;;; be a FP load from memory; a register load from another register
-;;; will probably be loading the wrong register!
-(defmacro with-empty-tn@fp-top((tn) &body body)
- `(progn
- (inst fstp ,tn)
- ,@body
- (unless (zerop (tn-offset ,tn))
- (inst fxch ,tn)))) ; save into new dest and restore st(0)
-\f
;;;; instruction-like macros
(defmacro move (dst src)
#!+sb-doc
"Move SRC into DST unless they are location=."
(once-only ((n-dst dst)
- (n-src src))
+ (n-src src))
`(unless (location= ,n-dst ,n-src)
- (inst mov ,n-dst ,n-src))))
+ (sc-case ,n-dst
+ (single-reg
+ (inst movss ,n-dst ,n-src))
+ (double-reg
+ (inst movsd ,n-dst ,n-src))
+ (t
+ (inst mov ,n-dst ,n-src))))))
(defmacro make-ea-for-object-slot (ptr slot lowtag)
`(make-ea :qword :base ,ptr :disp (- (* ,slot n-word-bytes) ,lowtag)))
(defmacro storew (value ptr &optional (slot 0) (lowtag 0))
(once-only ((value value))
- `(cond ((and (integerp ,value)
- (not (typep ,value '(signed-byte 32))))
- (multiple-value-bind (lo hi) (dwords-for-quad ,value)
- (inst mov (make-ea-for-object-slot-half
- ,ptr ,slot ,lowtag) lo)
- (inst mov (make-ea-for-object-slot-half
- ,ptr (+ ,slot 1/2) ,lowtag) hi)))
- (t
- (inst mov (make-ea-for-object-slot ,ptr ,slot ,lowtag) ,value)))))
+ `(cond ((and (integerp ,value)
+ (not (typep ,value '(signed-byte 32))))
+ (multiple-value-bind (lo hi) (dwords-for-quad ,value)
+ (inst mov (make-ea-for-object-slot-half
+ ,ptr ,slot ,lowtag) lo)
+ (inst mov (make-ea-for-object-slot-half
+ ,ptr (+ ,slot 1/2) ,lowtag) hi)))
+ (t
+ (inst mov (make-ea-for-object-slot ,ptr ,slot ,lowtag) ,value)))))
(defmacro pushw (ptr &optional (slot 0) (lowtag 0))
`(inst push (make-ea-for-object-slot ,ptr ,slot ,lowtag)))
(defmacro load-symbol (reg symbol)
`(inst mov ,reg (+ nil-value (static-symbol-offset ,symbol))))
+(defmacro make-ea-for-symbol-value (symbol)
+ `(make-ea :qword
+ :disp (+ nil-value
+ (static-symbol-offset ',symbol)
+ (ash symbol-value-slot word-shift)
+ (- other-pointer-lowtag))))
+
(defmacro load-symbol-value (reg symbol)
- `(inst mov ,reg
- (make-ea :qword
- :disp (+ nil-value
- (static-symbol-offset ',symbol)
- (ash symbol-value-slot word-shift)
- (- other-pointer-lowtag)))))
+ `(inst mov ,reg (make-ea-for-symbol-value ,symbol)))
(defmacro store-symbol-value (reg symbol)
- `(inst mov
- (make-ea :qword
- :disp (+ nil-value
- (static-symbol-offset ',symbol)
- (ash symbol-value-slot word-shift)
- (- other-pointer-lowtag)))
- ,reg))
+ `(inst mov (make-ea-for-symbol-value ,symbol) ,reg))
+
+#!+sb-thread
+(defmacro make-ea-for-symbol-tls-index (symbol)
+ `(make-ea :qword
+ :disp (+ nil-value
+ (static-symbol-offset ',symbol)
+ (ash symbol-tls-index-slot word-shift)
+ (- other-pointer-lowtag))))
#!+sb-thread
(defmacro load-tl-symbol-value (reg symbol)
`(progn
- (inst mov ,reg
- (make-ea :qword
- :disp (+ nil-value
- (static-symbol-offset ',symbol)
- (ash symbol-tls-index-slot word-shift)
- (- other-pointer-lowtag))))
- (inst fs-segment-prefix)
- (inst mov ,reg (make-ea :qword :scale 1 :index ,reg))))
+ (inst mov ,reg (make-ea-for-symbol-tls-index ,symbol))
+ (inst mov ,reg (make-ea :qword :base thread-base-tn :scale 1 :index ,reg))))
#!-sb-thread
(defmacro load-tl-symbol-value (reg symbol) `(load-symbol-value ,reg ,symbol))
#!+sb-thread
(defmacro store-tl-symbol-value (reg symbol temp)
`(progn
- (inst mov ,temp
- (make-ea :qword
- :disp (+ nil-value
- (static-symbol-offset ',symbol)
- (ash symbol-tls-index-slot word-shift)
- (- other-pointer-lowtag))))
- (inst fs-segment-prefix)
- (inst mov (make-ea :qword :scale 1 :index ,temp) ,reg)))
+ (inst mov ,temp (make-ea-for-symbol-tls-index ,symbol))
+ (inst mov (make-ea :qword :base thread-base-tn :scale 1 :index ,temp) ,reg)))
#!-sb-thread
(defmacro store-tl-symbol-value (reg symbol temp)
(declare (ignore temp))
`(store-symbol-value ,reg ,symbol))
-
+
+(defmacro load-binding-stack-pointer (reg)
+ #!+sb-thread
+ `(inst mov ,reg (make-ea :qword :base thread-base-tn
+ :disp (* 8 thread-binding-stack-pointer-slot)))
+ #!-sb-thread
+ `(load-symbol-value ,reg *binding-stack-pointer*))
+
+(defmacro store-binding-stack-pointer (reg)
+ #!+sb-thread
+ `(inst mov (make-ea :qword :base thread-base-tn
+ :disp (* 8 thread-binding-stack-pointer-slot))
+ ,reg)
+ #!-sb-thread
+ `(store-symbol-value ,reg *binding-stack-pointer*))
+
(defmacro load-type (target source &optional (offset 0))
#!+sb-doc
"Loads the type bits of a pointer into target independent of
byte-ordering issues."
(once-only ((n-target target)
- (n-source source)
- (n-offset offset))
+ (n-source source)
+ (n-offset offset))
(ecase *backend-byte-order*
(:little-endian
`(inst mov ,n-target
- (make-ea :byte :base ,n-source :disp ,n-offset)))
+ (make-ea :byte :base ,n-source :disp ,n-offset)))
(:big-endian
`(inst mov ,n-target
- (make-ea :byte :base ,n-source :disp (+ ,n-offset 4)))))))
+ (make-ea :byte :base ,n-source :disp (+ ,n-offset 4)))))))
\f
;;;; allocation helpers
;;; node-var then it is used to make an appropriate speed vs size
;;; decision.
+(defun allocation-dynamic-extent (alloc-tn size)
+ (inst sub rsp-tn size)
+ ;; see comment in x86/macros.lisp implementation of this
+ (inst and rsp-tn #.(lognot lowtag-mask))
+ (aver (not (location= alloc-tn rsp-tn)))
+ (inst mov alloc-tn rsp-tn)
+ (values))
+
;;; This macro should only be used inside a pseudo-atomic section,
;;; which should also cover subsequent initialization of the
;;; object.
(defun allocation-tramp (alloc-tn size &optional ignored)
(declare (ignore ignored))
(inst push size)
- (inst lea r13-tn (make-ea :qword
- :disp (make-fixup "alloc_tramp" :foreign)))
- (inst call r13-tn)
+ (inst lea temp-reg-tn (make-ea :qword
+ :disp (make-fixup "alloc_tramp" :foreign)))
+ (inst call temp-reg-tn)
(inst pop alloc-tn)
(values))
-(defun allocation (alloc-tn size &optional ignored)
+(defun allocation (alloc-tn size &optional ignored dynamic-extent)
(declare (ignore ignored))
+ (when dynamic-extent
+ (allocation-dynamic-extent alloc-tn size)
+ (return-from allocation (values)))
(let ((NOT-INLINE (gen-label))
- (DONE (gen-label))
- ;; Yuck.
- (in-elsewhere (eq *elsewhere* sb!assem::**current-segment**))
- (free-pointer
- (make-ea :qword :disp
- #!+sb-thread (* n-word-bytes thread-alloc-region-slot)
- #!-sb-thread (make-fixup "boxed_region" :foreign)
- :scale 1)) ; thread->alloc_region.free_pointer
- (end-addr
- (make-ea :qword :disp
- #!+sb-thread (* n-word-bytes (1+ thread-alloc-region-slot))
- #!-sb-thread (make-fixup "boxed_region" :foreign 8)
- :scale 1))) ; thread->alloc_region.end_addr
+ (DONE (gen-label))
+ ;; Yuck.
+ (in-elsewhere (eq *elsewhere* sb!assem::**current-segment**))
+ ;; thread->alloc_region.free_pointer
+ (free-pointer
+ #!+sb-thread
+ (make-ea :qword
+ :base thread-base-tn :scale 1
+ :disp (* n-word-bytes thread-alloc-region-slot))
+ #!-sb-thread
+ (make-ea :qword
+ :scale 1 :disp
+ (make-fixup "boxed_region" :foreign)))
+ ;; thread->alloc_region.end_addr
+ (end-addr
+ #!+sb-thread
+ (make-ea :qword
+ :base thread-base-tn :scale 1
+ :disp (* n-word-bytes (1+ thread-alloc-region-slot)))
+ #!-sb-thread
+ (make-ea :qword
+ :scale 1 :disp
+ (make-fixup "boxed_region" :foreign 8))))
(cond (in-elsewhere
- (allocation-tramp alloc-tn size))
- (t
- (unless (and (tn-p size) (location= alloc-tn size))
- (inst mov alloc-tn size))
- #!+sb-thread (inst fs-segment-prefix)
- (inst add alloc-tn free-pointer)
- #!+sb-thread (inst fs-segment-prefix)
- (inst cmp end-addr alloc-tn)
- (inst jmp :be NOT-INLINE)
- #!+sb-thread (inst fs-segment-prefix)
- (inst xchg free-pointer alloc-tn)
- (emit-label DONE)
- (assemble (*elsewhere*)
- (emit-label NOT-INLINE)
- (cond ((numberp size)
- (allocation-tramp alloc-tn size))
- (t
- (inst sub alloc-tn free-pointer)
- (allocation-tramp alloc-tn alloc-tn)))
- (inst jmp DONE))
- (values)))))
+ (allocation-tramp alloc-tn size))
+ (t
+ (inst mov temp-reg-tn free-pointer)
+ (if (tn-p size)
+ (if (location= alloc-tn size)
+ (inst add alloc-tn temp-reg-tn)
+ (inst lea alloc-tn
+ (make-ea :qword :base temp-reg-tn :index size)))
+ (inst lea alloc-tn
+ (make-ea :qword :base temp-reg-tn :disp size)))
+ (inst cmp end-addr alloc-tn)
+ (inst jmp :be NOT-INLINE)
+ (inst mov free-pointer alloc-tn)
+ (inst mov alloc-tn temp-reg-tn)
+ (emit-label DONE)
+ (assemble (*elsewhere*)
+ (emit-label NOT-INLINE)
+ (cond ((numberp size)
+ (allocation-tramp alloc-tn size))
+ (t
+ (inst sub alloc-tn free-pointer)
+ (allocation-tramp alloc-tn alloc-tn)))
+ (inst jmp DONE))
+ (values)))))
#+nil
(defun allocation (alloc-tn size &optional ignored)
(declare (ignore ignored))
(inst push size)
- (inst lea r13-tn (make-ea :qword
- :disp (make-fixup "alloc_tramp" :foreign)))
- (inst call r13-tn)
+ (inst lea temp-reg-tn (make-ea :qword
+ :disp (make-fixup "alloc_tramp" :foreign)))
+ (inst call temp-reg-tn)
(inst pop alloc-tn)
(values))
;;; header having the specified WIDETAG value. The result is placed in
;;; RESULT-TN.
(defmacro with-fixed-allocation ((result-tn widetag size &optional inline)
- &body forms)
+ &body forms)
(unless forms
(bug "empty &body in WITH-FIXED-ALLOCATION"))
(once-only ((result-tn result-tn) (size size))
`(pseudo-atomic
(allocation ,result-tn (pad-data-block ,size) ,inline)
(storew (logior (ash (1- ,size) n-widetag-bits) ,widetag)
- ,result-tn)
+ ,result-tn)
(inst lea ,result-tn
- (make-ea :qword :base ,result-tn :disp other-pointer-lowtag))
+ (make-ea :qword :base ,result-tn :disp other-pointer-lowtag))
,@forms)))
\f
;;;; error code
(eval-when (#-sb-xc :compile-toplevel :load-toplevel :execute)
(defun emit-error-break (vop kind code values)
(let ((vector (gensym)))
- `((inst int 3) ; i386 breakpoint instruction
- ;; The return PC points here; note the location for the debugger.
- (let ((vop ,vop))
- (when vop
- (note-this-location vop :internal-error)))
- (inst byte ,kind) ; eg trap_Xyyy
- (with-adjustable-vector (,vector) ; interr arguments
- (write-var-integer (error-number-or-lose ',code) ,vector)
- ,@(mapcar (lambda (tn)
- `(let ((tn ,tn))
- ;; classic CMU CL comment:
- ;; zzzzz jrd here. tn-offset is zero for constant
- ;; tns.
- (write-var-integer (make-sc-offset (sc-number
- (tn-sc tn))
- (or (tn-offset tn)
- 0))
- ,vector)))
- values)
- (inst byte (length ,vector))
- (dotimes (i (length ,vector))
- (inst byte (aref ,vector i))))))))
+ `((progn
+ #!-darwin (inst int 3) ; i386 breakpoint instruction
+ ;; On Darwin, we need to use #x0b0f instead of int3 in order
+ ;; to generate a SIGILL instead of a SIGTRAP as darwin/x86
+ ;; doesn't seem to be reliably firing SIGTRAP
+ ;; handlers. Hopefully this will be fixed by Apple at a
+ ;; later date. Do the same on x86-64 as we do on x86 until this gets
+ ;; sorted out.
+ #!+darwin (inst word #x0b0f))
+
+ ;; The return PC points here; note the location for the debugger.
+ (let ((vop ,vop))
+ (when vop
+ (note-this-location vop :internal-error)))
+ (inst byte ,kind) ; eg trap_Xyyy
+ (with-adjustable-vector (,vector) ; interr arguments
+ (write-var-integer (error-number-or-lose ',code) ,vector)
+ ,@(mapcar (lambda (tn)
+ `(let ((tn ,tn))
+ ;; classic CMU CL comment:
+ ;; zzzzz jrd here. tn-offset is zero for constant
+ ;; tns.
+ (write-var-integer (make-sc-offset (sc-number
+ (tn-sc tn))
+ (or (tn-offset tn)
+ 0))
+ ,vector)))
+ values)
+ (inst byte (length ,vector))
+ (dotimes (i (length ,vector))
+ (inst byte (aref ,vector i))))))))
(defmacro error-call (vop error-code &rest values)
#!+sb-doc
"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 generate-error-code (vop error-code &rest values)
#!+sb-doc
;;; around. It's an operation which the AOP weenies would describe as
;;; having "cross-cutting concerns", meaning it appears all over the
;;; place and there's no logical single place to attach documentation.
-;;; grep (mostly in src/runtime) is your friend
+;;; grep (mostly in src/runtime) is your friend
+
+;;; FIXME: THIS NAME IS BACKWARDS!
+(defmacro maybe-pseudo-atomic (really-p &body body)
+ `(if ,really-p
+ (progn ,@body)
+ (pseudo-atomic ,@body)))
+
+#!+sb-thread
+(defmacro pseudo-atomic (&rest forms)
+ (with-unique-names (label)
+ `(let ((,label (gen-label)))
+ (inst or (make-ea :byte
+ :base thread-base-tn
+ :disp (* 8 thread-pseudo-atomic-bits-slot))
+ (fixnumize 1))
+ ,@forms
+ (inst xor (make-ea :byte
+ :base thread-base-tn
+ :disp (* 8 thread-pseudo-atomic-bits-slot))
+ (fixnumize 1))
+ (inst jmp :z ,label)
+ ;; if PAI was set, interrupts were disabled at the same
+ ;; time using the process signal mask.
+ (inst break pending-interrupt-trap)
+ (emit-label ,label))))
-;;; FIXME: *PSEUDO-ATOMIC-FOO* could be made into *PSEUDO-ATOMIC-BITS*,
-;;; set with a single operation and cleared with SHR *PSEUDO-ATOMIC-BITS*,-2;
-;;; the ATOMIC bit is bit 0, the INTERRUPTED bit is bit 1, and you check
-;;; the C flag after the shift to see whether you were interrupted.
+#!-sb-thread
(defmacro pseudo-atomic (&rest forms)
(with-unique-names (label)
`(let ((,label (gen-label)))
;; FIXME: The MAKE-EA noise should become a MACROLET macro or
;; something. (perhaps SVLB, for static variable low byte)
- (inst mov (make-ea :byte :disp (+ nil-value
- (static-symbol-offset
- '*pseudo-atomic-interrupted*)
- (ash symbol-value-slot word-shift)
- ;; FIXME: Use mask, not minus, to
- ;; take out type bits.
- (- other-pointer-lowtag)))
- 0)
- (inst mov (make-ea :byte :disp (+ nil-value
- (static-symbol-offset
- '*pseudo-atomic-atomic*)
- (ash symbol-value-slot word-shift)
- (- other-pointer-lowtag)))
- (fixnumize 1))
+ (inst or (make-ea :byte :disp (+ nil-value
+ (static-symbol-offset
+ '*pseudo-atomic-bits*)
+ (ash symbol-value-slot word-shift)
+ (- other-pointer-lowtag)))
+ (fixnumize 1))
,@forms
- (inst mov (make-ea :byte :disp (+ nil-value
+ (inst xor (make-ea :byte :disp (+ nil-value
(static-symbol-offset
- '*pseudo-atomic-atomic*)
+ '*pseudo-atomic-bits*)
(ash symbol-value-slot word-shift)
(- other-pointer-lowtag)))
- 0)
- ;; KLUDGE: Is there any requirement for interrupts to be
- ;; handled in order? It seems as though an interrupt coming
- ;; in at this point will be executed before any pending interrupts.
- ;; Or do incoming interrupts check to see whether any interrupts
- ;; are pending? I wish I could find the documentation for
- ;; pseudo-atomics.. -- WHN 19991130
- (inst cmp (make-ea :byte
- :disp (+ nil-value
- (static-symbol-offset
- '*pseudo-atomic-interrupted*)
- (ash symbol-value-slot word-shift)
- (- other-pointer-lowtag)))
- 0)
- (inst jmp :eq ,label)
+ (fixnumize 1))
+ (inst jmp :z ,label)
;; if PAI was set, interrupts were disabled at the same time
- ;; using the process signal mask.
+ ;; using the process signal mask.
(inst break pending-interrupt-trap)
(emit-label ,label))))
`(progn
(define-vop (,name)
,@(when translate
- `((:translate ,translate)))
+ `((:translate ,translate)))
(:policy :fast-safe)
(:args (object :scs (descriptor-reg))
- (index :scs (any-reg)))
+ (index :scs (any-reg)))
(:arg-types ,type tagged-num)
(:results (value :scs ,scs))
(:result-types ,el-type)
- (:generator 3 ; pw was 5
- (inst mov value (make-ea :qword :base object :index index
- :disp (- (* ,offset n-word-bytes)
- ,lowtag)))))
+ (:generator 3 ; pw was 5
+ (inst mov value (make-ea :qword :base object :index index
+ :disp (- (* ,offset n-word-bytes)
+ ,lowtag)))))
(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 2 ; pw was 5
- (inst mov value (make-ea :qword :base object
- :disp (- (* (+ ,offset index) n-word-bytes)
- ,lowtag)))))))
+ (:generator 2 ; pw was 5
+ (inst mov value (make-ea :qword :base object
+ :disp (- (* (+ ,offset index) n-word-bytes)
+ ,lowtag)))))))
(defmacro define-full-setter (name type offset lowtag scs el-type &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)
(:results (result :scs ,scs))
(:result-types ,el-type)
- (:generator 4 ; was 5
- (inst mov (make-ea :qword :base object :index index
- :disp (- (* ,offset n-word-bytes) ,lowtag))
- value)
- (move result value)))
+ (:generator 4 ; was 5
+ (inst mov (make-ea :qword :base object :index index
+ :disp (- (* ,offset n-word-bytes) ,lowtag))
+ value)
+ (move result value)))
(define-vop (,(symbolicate name "-C"))
,@(when translate
- `((:translate ,translate)))
+ `((:translate ,translate)))
(:policy :fast-safe)
(:args (object :scs (descriptor-reg))
- (value :scs ,scs :target result))
+ (value :scs ,scs :target result))
(: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 3 ; was 5
- (inst mov (make-ea :qword :base object
- :disp (- (* (+ ,offset index) n-word-bytes)
- ,lowtag))
- value)
- (move result value)))))
+ (:generator 3 ; was 5
+ (inst mov (make-ea :qword :base object
+ :disp (- (* (+ ,offset index) n-word-bytes)
+ ,lowtag))
+ value)
+ (move result value)))))
;;; helper for alien stuff.
-(defmacro with-pinned-objects ((&rest objects) &body body)
+(def!macro 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"
`(multiple-value-prog1
(progn
- ,@(loop for p in objects
- collect `(push-word-on-c-stack
- (int-sap (sb!kernel:get-lisp-obj-address ,p))))
- ,@body)
+ ,@(loop for p in objects
+ collect `(push-word-on-c-stack
+ (int-sap (sb!kernel:get-lisp-obj-address ,p))))
+ ,@body)
;; If the body returned normally, we should restore the stack pointer
;; for the benefit of any following code in the same function. If
;; there's a non-local exit in the body, sp is garbage anyway and
projects / sbcl.git / blobdiff