block catch-block-entry-pc-slot)
#!+win32
(progn
- (inst fs-segment-prefix)
- (inst mov temp (make-ea :dword :disp 0))
+ (inst mov temp (make-ea :dword :disp 0) :fs)
(storew temp block unwind-block-next-seh-frame-slot))))
;;; like MAKE-UNWIND-BLOCK, except that we also store in the specified
block catch-block-entry-pc-slot)
#!+win32
(progn
- (inst fs-segment-prefix)
- (inst mov temp (make-ea :dword :disp 0))
+ (inst mov temp (make-ea :dword :disp 0) :fs)
(storew temp block unwind-block-next-seh-frame-slot))
(storew tag block catch-block-tag-slot)
(load-tl-symbol-value temp *current-catch-block*)
(inst lea seh-frame
(make-ea-for-object-slot new-uwp
unwind-block-next-seh-frame-slot 0))
- (inst fs-segment-prefix)
- (inst mov (make-ea :dword :disp 0) seh-frame))
+ (inst mov (make-ea :dword :disp 0) seh-frame :fs))
(store-tl-symbol-value new-uwp *current-unwind-protect-block* tls)))
(define-vop (unlink-catch-block)
#!+win32
(progn
(loadw seh-frame block unwind-block-next-seh-frame-slot)
- (inst fs-segment-prefix)
- (inst mov (make-ea :dword :disp 0) seh-frame))
+ (inst mov (make-ea :dword :disp 0) seh-frame :fs))
(loadw block block unwind-block-current-uwp-slot)
(store-tl-symbol-value block *current-unwind-protect-block* tls)))
\f
(inst std)
(inst rep)
(inst movs :dword)
-
+ (inst cld)
DONE
- ;; solaris requires DF being zero.
- #!+sunos (inst cld)
;; Reset the CSP at last moved arg.
(inst lea esp-tn (make-ea :dword :base edi :disp n-word-bytes))))
(:generator 0
(emit-label label)
(note-this-location vop :non-local-entry)))
+
+(define-vop (unwind-to-frame-and-call)
+ (:args (ofp :scs (descriptor-reg))
+ (uwp :scs (descriptor-reg))
+ (function :scs (descriptor-reg)))
+ (:arg-types system-area-pointer system-area-pointer t)
+ (:temporary (:sc sap-reg) temp)
+ (:temporary (:sc unsigned-reg :offset eax-offset) block)
+ (:generator 22
+ ;; Store the function into a non-stack location, since we'll be
+ ;; unwinding the stack and destroying register contents before we
+ ;; use it.
+ (store-tl-symbol-value function
+ *unwind-to-frame-function*
+ temp)
+
+ ;; Allocate space for magic UWP block.
+ (inst sub esp-tn unwind-block-size)
+ ;; Set up magic catch / UWP block.
+ (move block esp-tn)
+ (loadw temp uwp sap-pointer-slot other-pointer-lowtag)
+ (storew temp block unwind-block-current-uwp-slot)
+ (loadw temp ofp sap-pointer-slot other-pointer-lowtag)
+ (storew temp block unwind-block-current-cont-slot)
+
+ (storew (make-fixup nil :code-object entry-label)
+ block
+ catch-block-entry-pc-slot)
+
+ ;; Run any required UWPs.
+ (inst jmp (make-fixup 'unwind :assembly-routine))
+ ENTRY-LABEL
+
+ ;; Load function from symbol
+ (load-tl-symbol-value block *unwind-to-frame-function*)
+
+ ;; No parameters
+ (inst xor ecx-tn ecx-tn)
+
+ ;; Clear the stack
+ (inst lea esp-tn
+ (make-ea :dword :base ebp-tn :disp (* -3 n-word-bytes)))
+
+ ;; Push the return-pc so it looks like we just called.
+ (pushw ebp-tn -2)
+
+ ;; Call it
+ (inst jmp (make-ea :dword :base block
+ :disp (- (* closure-fun-slot n-word-bytes)
+ fun-pointer-lowtag)))))