(: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 function)
(inst call (make-fixup "call_into_c" :foreign)))
(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. XX not really internal-error?
+ ;; 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
(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
+ (inst fxch fr7-tn) ; move the result back to fr0
+ (inst fldz)) ; insure no regs are empty
))))
-(define-vop (alloc-number-stack-space)
- (:info amount)
- (:results (result :scs (sap-reg any-reg)))
+;;; 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
- (aver (location= result esp-tn))
(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))
- (unless (zerop amount)
- (let ((delta (logandc2 (+ amount 3) 3)))
- (inst sub esp-tn delta)))
- (move result esp-tn)))
+ (inst wait))))
-(define-vop (dealloc-number-stack-space)
- (:info amount)
+(define-vop (set-fpu-word-for-lisp)
(:node-var node)
(:generator 0
- (unless (zerop amount)
- (let ((delta (logandc2 (+ amount 3) 3)))
- (inst add esp-tn delta)))
(when (policy node (= sb!c::float-accuracy 3))
(inst fnstcw (make-ea :word :base esp-tn))
(inst wait)
(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)))
+ (align-stack-pointer esp-tn)
+ (move result esp-tn)))
+
(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 mov temp
- (make-ea :dword
- :disp (+ nil-value
- (static-symbol-offset '*alien-stack*)
- (ash symbol-tls-index-slot word-shift)
- (- other-pointer-lowtag))))
+ (make-ea-for-symbol-tls-index *alien-stack*))
(inst fs-segment-prefix)
- (inst sub (make-ea :dword :scale 1 :index temp) delta)))
+ (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-lowtag)))
+ (inst sub (make-ea-for-symbol-value *alien-stack*)
delta)))
(load-symbol-value result *alien-stack*)))
(unless (zerop amount)
(let ((delta (logandc2 (+ amount 3) 3)))
(inst mov temp
- (make-ea :dword
- :disp (+ nil-value
- (static-symbol-offset '*alien-stack*)
- (ash symbol-tls-index-slot word-shift)
- (- other-pointer-lowtag))))
+ (make-ea-for-symbol-tls-index *alien-stack*))
(inst fs-segment-prefix)
- (inst add (make-ea :dword :scale 1 :index temp) delta))))
+ (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 :dword
- :disp (+ nil-value
- (static-symbol-offset '*alien-stack*)
- (ash symbol-value-slot word-shift)
- (- other-pointer-lowtag)))
+ (inst add (make-ea-for-symbol-value *alien-stack*)
delta)))))
-;;; these are not strictly part of the c-call convention, but are
-;;; needed for the WITH-PRESERVED-POINTERS macro used for "locking
-;;; down" lisp objects so that GC won't move them while foreign
-;;; functions go to work.
-
-(define-vop (push-word-on-c-stack)
- (:translate push-word-on-c-stack)
- (:args (val :scs (sap-reg)))
+;;; 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 system-area-pointer)
- (:generator 2
- (inst push val)))
-
-(define-vop (pop-words-from-c-stack)
- (:translate pop-words-from-c-stack)
- (:args)
- (:arg-types (:constant (unsigned-byte 29)))
- (:info number)
- (:policy :fast-safe)
- (:generator 2
- (inst add esp-tn (fixnumize number))))
+ (:arg-types t)
+ (:generator 0))
#-sb-xc-host
(defun alien-callback-accessor-form (type sp offset)
(inst add eax 16) ; arguments
(inst push eax) ; arg1
(inst push (ash index 2)) ; arg0
- (inst push (get-lisp-obj-address #'enter-alien-callback)) ; function
+
+ ;; 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
projects / sbcl.git / blobdiff