(in-package "SB!VM")
-;; The MOVE-ARGUMENT vop is going to store args on the stack for
+;; The MOVE-ARG vop is going to store args on the stack for
;; call-out. These tn's will be used for that. move-arg is normally
;; used for things going down the stack but C wants to have args
;; indexed in the positive direction.
(defun my-make-wired-tn (prim-type-name sc-name offset)
(make-wired-tn (primitive-type-or-lose prim-type-name)
- (sc-number-or-lose sc-name)
- offset))
+ (sc-number-or-lose sc-name)
+ offset))
(defstruct (arg-state (:copier nil))
(stack-frame-size 0))
-(def-alien-type-method (integer :arg-tn) (type state)
+(define-alien-type-method (integer :arg-tn) (type state)
(let ((stack-frame-size (arg-state-stack-frame-size state)))
(setf (arg-state-stack-frame-size state) (1+ stack-frame-size))
(multiple-value-bind (ptype stack-sc)
- (if (alien-integer-type-signed type)
- (values 'signed-byte-32 'signed-stack)
- (values 'unsigned-byte-32 'unsigned-stack))
+ (if (alien-integer-type-signed type)
+ (values 'signed-byte-32 'signed-stack)
+ (values 'unsigned-byte-32 'unsigned-stack))
(my-make-wired-tn ptype stack-sc stack-frame-size))))
-(def-alien-type-method (system-area-pointer :arg-tn) (type state)
+(define-alien-type-method (system-area-pointer :arg-tn) (type state)
(declare (ignore type))
(let ((stack-frame-size (arg-state-stack-frame-size state)))
(setf (arg-state-stack-frame-size state) (1+ stack-frame-size))
(my-make-wired-tn 'system-area-pointer
- 'sap-stack
- stack-frame-size)))
+ 'sap-stack
+ stack-frame-size)))
#!+long-float
-(def-alien-type-method (long-float :arg-tn) (type state)
+(define-alien-type-method (long-float :arg-tn) (type state)
(declare (ignore type))
(let ((stack-frame-size (arg-state-stack-frame-size state)))
(setf (arg-state-stack-frame-size state) (+ stack-frame-size 3))
(my-make-wired-tn 'long-float 'long-stack stack-frame-size)))
-(def-alien-type-method (double-float :arg-tn) (type state)
+(define-alien-type-method (double-float :arg-tn) (type state)
(declare (ignore type))
(let ((stack-frame-size (arg-state-stack-frame-size state)))
(setf (arg-state-stack-frame-size state) (+ stack-frame-size 2))
(my-make-wired-tn 'double-float 'double-stack stack-frame-size)))
-(def-alien-type-method (single-float :arg-tn) (type state)
+(define-alien-type-method (single-float :arg-tn) (type state)
(declare (ignore type))
(let ((stack-frame-size (arg-state-stack-frame-size state)))
(setf (arg-state-stack-frame-size state) (1+ stack-frame-size))
(0 eax-offset)
(1 edx-offset)))
-(def-alien-type-method (integer :result-tn) (type state)
+(define-alien-type-method (integer :result-tn) (type state)
(let ((num-results (result-state-num-results state)))
(setf (result-state-num-results state) (1+ num-results))
(multiple-value-bind (ptype reg-sc)
- (if (alien-integer-type-signed type)
- (values 'signed-byte-32 'signed-reg)
- (values 'unsigned-byte-32 'unsigned-reg))
+ (if (alien-integer-type-signed type)
+ (values 'signed-byte-32 'signed-reg)
+ (values 'unsigned-byte-32 'unsigned-reg))
(my-make-wired-tn ptype reg-sc (result-reg-offset num-results)))))
-(def-alien-type-method (system-area-pointer :result-tn) (type state)
+(define-alien-type-method (system-area-pointer :result-tn) (type state)
(declare (ignore type))
(let ((num-results (result-state-num-results state)))
(setf (result-state-num-results state) (1+ num-results))
(my-make-wired-tn 'system-area-pointer 'sap-reg
- (result-reg-offset num-results))))
+ (result-reg-offset num-results))))
#!+long-float
-(def-alien-type-method (long-float :result-tn) (type state)
+(define-alien-type-method (long-float :result-tn) (type state)
(declare (ignore type))
(let ((num-results (result-state-num-results state)))
(setf (result-state-num-results state) (1+ num-results))
(my-make-wired-tn 'long-float 'long-reg (* num-results 2))))
-(def-alien-type-method (double-float :result-tn) (type state)
+(define-alien-type-method (double-float :result-tn) (type state)
(declare (ignore type))
(let ((num-results (result-state-num-results state)))
(setf (result-state-num-results state) (1+ num-results))
(my-make-wired-tn 'double-float 'double-reg (* num-results 2))))
-(def-alien-type-method (single-float :result-tn) (type state)
+(define-alien-type-method (single-float :result-tn) (type state)
(declare (ignore type))
(let ((num-results (result-state-num-results state)))
(setf (result-state-num-results state) (1+ num-results))
(my-make-wired-tn 'single-float 'single-reg (* num-results 2))))
-#+nil ;;pfw obsolete now?
-(def-alien-type-method (values :result-tn) (type state)
- (mapcar #'(lambda (type)
- (invoke-alien-type-method :result-tn type state))
- (alien-values-type-values type)))
-
-;;; pfw - from alpha
-(def-alien-type-method (values :result-tn) (type state)
+(define-alien-type-method (values :result-tn) (type state)
(let ((values (alien-values-type-values type)))
- (when (cdr values)
+ (when (> (length values) 2)
(error "Too many result values from c-call."))
- (when values
- (invoke-alien-type-method :result-tn (car values) state))))
+ (mapcar (lambda (type)
+ (invoke-alien-type-method :result-tn type state))
+ values)))
(!def-vm-support-routine make-call-out-tns (type)
(let ((arg-state (make-arg-state)))
(collect ((arg-tns))
- (dolist #+nil ;; this reversed list seems to cause the alien botches!!
- (arg-type (reverse (alien-function-type-arg-types type)))
- (arg-type (alien-function-type-arg-types type))
- (arg-tns (invoke-alien-type-method :arg-tn arg-type arg-state)))
+ (dolist (arg-type (alien-fun-type-arg-types type))
+ (arg-tns (invoke-alien-type-method :arg-tn arg-type arg-state)))
(values (my-make-wired-tn 'positive-fixnum 'any-reg esp-offset)
- (* (arg-state-stack-frame-size arg-state) word-bytes)
- (arg-tns)
- (invoke-alien-type-method :result-tn
- (alien-function-type-result-type type)
- (make-result-state))))))
-
-(define-vop (foreign-symbol-address)
- (:translate foreign-symbol-address)
+ (* (arg-state-stack-frame-size arg-state) n-word-bytes)
+ (arg-tns)
+ (invoke-alien-type-method :result-tn
+ (alien-fun-type-result-type type)
+ (make-result-state))))))
+
+
+(deftransform %alien-funcall ((function type &rest args) * * :node node)
+ (aver (sb!c::constant-lvar-p type))
+ (let* ((type (sb!c::lvar-value type))
+ (env (sb!c::node-lexenv node))
+ (arg-types (alien-fun-type-arg-types type))
+ (result-type (alien-fun-type-result-type type)))
+ (aver (= (length arg-types) (length args)))
+ (if (or (some #'(lambda (type)
+ (and (alien-integer-type-p type)
+ (> (sb!alien::alien-integer-type-bits type) 32)))
+ arg-types)
+ (and (alien-integer-type-p result-type)
+ (> (sb!alien::alien-integer-type-bits result-type) 32)))
+ (collect ((new-args) (lambda-vars) (new-arg-types))
+ (dolist (type arg-types)
+ (let ((arg (gensym)))
+ (lambda-vars arg)
+ (cond ((and (alien-integer-type-p type)
+ (> (sb!alien::alien-integer-type-bits type) 32))
+ (new-args `(logand ,arg #xffffffff))
+ (new-args `(ash ,arg -32))
+ (new-arg-types (parse-alien-type '(unsigned 32) env))
+ (if (alien-integer-type-signed type)
+ (new-arg-types (parse-alien-type '(signed 32) env))
+ (new-arg-types (parse-alien-type '(unsigned 32) env))))
+ (t
+ (new-args arg)
+ (new-arg-types type)))))
+ (cond ((and (alien-integer-type-p result-type)
+ (> (sb!alien::alien-integer-type-bits result-type) 32))
+ (let ((new-result-type
+ (let ((sb!alien::*values-type-okay* t))
+ (parse-alien-type
+ (if (alien-integer-type-signed result-type)
+ '(values (unsigned 32) (signed 32))
+ '(values (unsigned 32) (unsigned 32)))
+ env))))
+ `(lambda (function type ,@(lambda-vars))
+ (declare (ignore type))
+ (multiple-value-bind (low high)
+ (%alien-funcall function
+ ',(make-alien-fun-type
+ :arg-types (new-arg-types)
+ :result-type new-result-type)
+ ,@(new-args))
+ (logior low (ash high 32))))))
+ (t
+ `(lambda (function type ,@(lambda-vars))
+ (declare (ignore type))
+ (%alien-funcall function
+ ',(make-alien-fun-type
+ :arg-types (new-arg-types)
+ :result-type result-type)
+ ,@(new-args))))))
+ (sb!c::give-up-ir1-transform))))
+
+(define-vop (foreign-symbol-sap)
+ (:translate foreign-symbol-sap)
+ (:policy :fast-safe)
+ (:args)
+ (:arg-types (:constant simple-string))
+ (:info foreign-symbol)
+ (:results (res :scs (sap-reg)))
+ (:result-types system-area-pointer)
+ (:generator 2
+ (inst lea res (make-fixup foreign-symbol :foreign))))
+
+#!+linkage-table
+(define-vop (foreign-symbol-dataref-sap)
+ (:translate foreign-symbol-dataref-sap)
(:policy :fast-safe)
(:args)
(:arg-types (:constant simple-string))
(:results (res :scs (sap-reg)))
(:result-types system-area-pointer)
(:generator 2
- (inst lea res (make-fixup (extern-alien-name foreign-symbol) :foreign))))
+ (inst mov res (make-fixup foreign-symbol :foreign-dataref))))
(define-vop (call-out)
(:args (function :scs (sap-reg))
- (args :more t))
+ (args :more t))
(:results (results :more t))
- ;; eax is already wired
- (:temporary (:sc unsigned-reg :offset ecx-offset) ecx)
- (:temporary (:sc unsigned-reg :offset edx-offset) edx)
+ (:temporary (:sc unsigned-reg :offset eax-offset
+ :from :eval :to :result) eax)
+ (:temporary (:sc unsigned-reg :offset ecx-offset
+ :from :eval :to :result) ecx)
+ (:temporary (:sc unsigned-reg :offset edx-offset
+ :from :eval :to :result) edx)
(:node-var node)
(:vop-var vop)
(:save-p t)
(:ignore args ecx edx)
(:generator 0
+ ;; FIXME & OAOOM: This is brittle and error-prone to maintain two
+ ;; instances of the same logic, on in arch-assem.S, and one in
+ ;; c-call.lisp. If you modify this, modify that one too...
(cond ((policy node (> space speed))
- (move eax-tn function)
- (inst call (make-fixup (extern-alien-name "call_into_c") :foreign)))
- (t
- ;; Setup the NPX for C; all the FP registers need to be
- ;; empty; pop them all.
- (inst fstp fr0-tn)
- (inst fstp fr0-tn)
- (inst fstp fr0-tn)
- (inst fstp fr0-tn)
- (inst fstp fr0-tn)
- (inst fstp fr0-tn)
- (inst fstp fr0-tn)
- (inst fstp fr0-tn)
-
- (inst call function)
- ;; To give the debugger a clue. XX not really internal-error?
- (note-this-location vop :internal-error)
-
- ;; Restore the NPX for lisp.
- (inst fldz) ; insure no regs are empty
- (inst fldz)
- (inst fldz)
- (inst fldz)
- (inst fldz)
- (inst fldz)
- (inst fldz)
-
- (if (and results
- (location= (tn-ref-tn results) fr0-tn))
- ;; The return result is in fr0.
- (inst fxch fr7-tn) ; move the result back to fr0
- (inst fldz)) ; insure no regs are empty
- ))))
+ (move eax function)
+ (inst call (make-fixup "call_into_c" :foreign)))
+ (t
+ ;; Setup the NPX for C; all the FP registers need to be
+ ;; empty; pop them all.
+ (dotimes (i 8)
+ (inst fstp fr0-tn))
+
+ ;; Clear out DF: Darwin, Windows, and Solaris at least require
+ ;; this, and it should not hurt others either.
+ (inst cld)
+
+ (inst call function)
+ ;; To give the debugger a clue. FIXME: not really internal-error?
+ (note-this-location vop :internal-error)
+
+ ;; Restore the NPX for lisp; ensure no regs are empty
+ (dotimes (i 7)
+ (inst fldz))
+
+ (if (and results
+ (location= (tn-ref-tn results) fr0-tn))
+ ;; The return result is in fr0.
+ (inst fxch fr7-tn) ; move the result back to fr0
+ (inst fldz)) ; insure no regs are empty
+ ))))
+
+;;; While SBCL uses the FPU in 53-bit mode, most C libraries assume that
+;;; the FPU is in 64-bit mode. So we change the FPU mode to 64-bit with
+;;; the SET-FPU-WORD-FOR-C VOP before calling out to C and set it back
+;;; to 53-bit mode after coming back using the SET-FPU-WORD-FOR-LISP VOP.
+(define-vop (set-fpu-word-for-c)
+ (:node-var node)
+ (:generator 0
+ (when (policy node (= sb!c::float-accuracy 3))
+ (inst sub esp-tn 4)
+ (inst fnstcw (make-ea :word :base esp-tn))
+ (inst wait)
+ (inst or (make-ea :word :base esp-tn) #x300)
+ (inst fldcw (make-ea :word :base esp-tn))
+ (inst wait))))
+
+(define-vop (set-fpu-word-for-lisp)
+ (:node-var node)
+ (:generator 0
+ (when (policy node (= sb!c::float-accuracy 3))
+ (inst fnstcw (make-ea :word :base esp-tn))
+ (inst wait)
+ (inst and (make-ea :word :base esp-tn) #xfeff)
+ (inst fldcw (make-ea :word :base esp-tn))
+ (inst wait)
+ (inst add esp-tn 4))))
(define-vop (alloc-number-stack-space)
(:info amount)
(:results (result :scs (sap-reg any-reg)))
+ (:result-types system-area-pointer)
(:generator 0
(aver (location= result esp-tn))
(unless (zerop amount)
(let ((delta (logandc2 (+ amount 3) 3)))
- (inst sub esp-tn delta)))
+ (inst sub esp-tn delta)))
+ (align-stack-pointer esp-tn)
(move result esp-tn)))
-(define-vop (dealloc-number-stack-space)
+(define-vop (alloc-alien-stack-space)
(:info amount)
+ #!+sb-thread (:temporary (:sc unsigned-reg) temp)
+ (:results (result :scs (sap-reg any-reg)))
+ (:result-types system-area-pointer)
+ #!+sb-thread
(:generator 0
+ (aver (not (location= result esp-tn)))
(unless (zerop amount)
(let ((delta (logandc2 (+ amount 3) 3)))
- (inst add esp-tn delta)))))
-
-(define-vop (alloc-alien-stack-space)
- (:info amount)
- (:results (result :scs (sap-reg any-reg)))
+ (inst mov temp
+ (make-ea-for-symbol-tls-index *alien-stack*))
+ (inst fs-segment-prefix)
+ (inst sub (make-ea :dword :base temp) delta)))
+ (load-tl-symbol-value result *alien-stack*))
+ #!-sb-thread
(:generator 0
(aver (not (location= result esp-tn)))
(unless (zerop amount)
(let ((delta (logandc2 (+ amount 3) 3)))
- (inst sub (make-ea :dword
- :disp (+ nil-value
- (static-symbol-offset '*alien-stack*)
- (ash symbol-value-slot word-shift)
- (- other-pointer-type)))
- delta)))
+ (inst sub (make-ea-for-symbol-value *alien-stack*)
+ delta)))
(load-symbol-value result *alien-stack*)))
(define-vop (dealloc-alien-stack-space)
(:info amount)
+ #!+sb-thread (:temporary (:sc unsigned-reg) temp)
+ #!+sb-thread
(:generator 0
(unless (zerop amount)
(let ((delta (logandc2 (+ amount 3) 3)))
- (inst add (make-ea :dword
- :disp (+ nil-value
- (static-symbol-offset '*alien-stack*)
- (ash symbol-value-slot word-shift)
- (- other-pointer-type)))
- delta)))))
+ (inst mov temp
+ (make-ea-for-symbol-tls-index *alien-stack*))
+ (inst fs-segment-prefix)
+ (inst add (make-ea :dword :base temp) delta))))
+ #!-sb-thread
+ (:generator 0
+ (unless (zerop amount)
+ (let ((delta (logandc2 (+ amount 3) 3)))
+ (inst add (make-ea-for-symbol-value *alien-stack*)
+ delta)))))
+
+;;; not strictly part of the c-call convention, but needed for the
+;;; WITH-PINNED-OBJECTS macro used for "locking down" lisp objects so
+;;; that GC won't move them while foreign functions go to work.
+(define-vop (touch-object)
+ (:translate touch-object)
+ (:args (object))
+ (:ignore object)
+ (:policy :fast-safe)
+ (:arg-types t)
+ (:generator 0))
+
+#-sb-xc-host
+(defun alien-callback-accessor-form (type sp offset)
+ `(deref (sap-alien (sap+ ,sp ,offset) (* ,type))))
+
+#-sb-xc-host
+(defun alien-callback-assembler-wrapper (index return-type arg-types)
+ "Cons up a piece of code which calls call-callback with INDEX and a
+pointer to the arguments."
+ (declare (ignore arg-types))
+ (let* ((segment (make-segment))
+ (eax eax-tn)
+ (edx edx-tn)
+ (ebp ebp-tn)
+ (esp esp-tn)
+ ([ebp-8] (make-ea :dword :base ebp :disp -8))
+ ([ebp-4] (make-ea :dword :base ebp :disp -4)))
+ (assemble (segment)
+ (inst push ebp) ; save old frame pointer
+ (inst mov ebp esp) ; establish new frame
+ (inst mov eax esp) ;
+ (inst sub eax 8) ; place for result
+ (inst push eax) ; arg2
+ (inst add eax 16) ; arguments
+ (inst push eax) ; arg1
+ (inst push (ash index 2)) ; arg0
+
+ ;; Indirect the access to ENTER-ALIEN-CALLBACK through
+ ;; the symbol-value slot of SB-ALIEN::*ENTER-ALIEN-CALLBACK*
+ ;; to ensure it'll work even if the GC moves ENTER-ALIEN-CALLBACK.
+ ;; Skip any SB-THREAD TLS magic, since we don't expecte anyone
+ ;; to rebind the variable. -- JES, 2006-01-01
+ (load-symbol-value eax sb!alien::*enter-alien-callback*)
+ (inst push eax) ; function
+ (inst mov eax (foreign-symbol-address "funcall3"))
+ (inst call eax)
+ ;; now put the result into the right register
+ (cond
+ ((and (alien-integer-type-p return-type)
+ (eql (alien-type-bits return-type) 64))
+ (inst mov eax [ebp-8])
+ (inst mov edx [ebp-4]))
+ ((or (alien-integer-type-p return-type)
+ (alien-pointer-type-p return-type)
+ (alien-type-= #.(parse-alien-type 'system-area-pointer nil)
+ return-type))
+ (inst mov eax [ebp-8]))
+ ((alien-single-float-type-p return-type)
+ (inst fld [ebp-8]))
+ ((alien-double-float-type-p return-type)
+ (inst fldd [ebp-8]))
+ ((alien-void-type-p return-type))
+ (t
+ (error "unrecognized alien type: ~A" return-type)))
+ (inst mov esp ebp) ; discard frame
+ (inst pop ebp) ; restore frame pointer
+ (inst ret))
+ (finalize-segment segment)
+ ;; Now that the segment is done, convert it to a static
+ ;; vector we can point foreign code to.
+ (let ((buffer (sb!assem::segment-buffer segment)))
+ (make-static-vector (length buffer)
+ :element-type '(unsigned-byte 8)
+ :initial-contents buffer))))
projects / sbcl.git / blobdiff