1.0.10.36: support for Darwin versions that support __DARWIN_UNIX03

[sbcl.git] / src / compiler / x86 / nlx.lisp

diff --git a/src/compiler/x86/nlx.lisp b/src/compiler/x86/nlx.lisp
index 862688f..5a1314c 100644 (file)
--- a/src/compiler/x86/nlx.lisp
+++ b/src/compiler/x86/nlx.lisp
@@ -24,7 +24,7 @@
 (defun catch-block-ea (tn)
   (aver (sc-is tn catch-block))
   (make-ea :dword :base ebp-tn
-           :disp (- (* (+ (tn-offset tn) catch-block-size) n-word-bytes))))
+           :disp (frame-byte-offset (+ -1 (tn-offset tn) catch-block-size))))
 
 \f
 ;;;; Save and restore dynamic environment.
@@ -63,7 +63,7 @@
 (define-vop (current-binding-pointer)
   (:results (res :scs (any-reg descriptor-reg)))
   (:generator 1
-    (load-tl-symbol-value res *binding-stack-pointer*)))
+    (load-binding-stack-pointer res)))
 \f
 ;;;; unwind block hackery
 
@@ -80,7 +80,12 @@
     (storew temp block unwind-block-current-uwp-slot)
     (storew ebp-tn block unwind-block-current-cont-slot)
     (storew (make-fixup nil :code-object entry-label)
-            block catch-block-entry-pc-slot)))
+            block catch-block-entry-pc-slot)
+    #!+win32
+    (progn
+      (inst fs-segment-prefix)
+      (inst mov temp (make-ea :dword :disp 0))
+      (storew temp block unwind-block-next-seh-frame-slot))))
 
 ;;; like MAKE-UNWIND-BLOCK, except that we also store in the specified
 ;;; tag, and link the block into the CURRENT-CATCH list
@@ -97,6 +102,11 @@
     (storew ebp-tn block  unwind-block-current-cont-slot)
     (storew (make-fixup nil :code-object entry-label)
             block catch-block-entry-pc-slot)
+    #!+win32
+    (progn
+      (inst fs-segment-prefix)
+      (inst mov temp (make-ea :dword :disp 0))
+      (storew temp block unwind-block-next-seh-frame-slot))
     (storew tag block catch-block-tag-slot)
     (load-tl-symbol-value temp *current-catch-block*)
     (storew temp block catch-block-previous-catch-slot)
@@ -106,9 +116,18 @@
 ;;; unwind block as an unwind-protect.
 (define-vop (set-unwind-protect)
   (:args (tn))
-  (:temporary (:sc unsigned-reg) new-uwp #!+sb-thread tls)
+  (:temporary (:sc unsigned-reg) new-uwp #!+sb-thread tls #!+win32 seh-frame)
   (:generator 7
     (inst lea new-uwp (catch-block-ea tn))
+    #!+win32
+    (progn
+      (storew (make-fixup 'uwp-seh-handler :assembly-routine)
+              new-uwp unwind-block-seh-frame-handler-slot)
+      (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))
     (store-tl-symbol-value new-uwp *current-unwind-protect-block* tls)))
 
 (define-vop (unlink-catch-block)
@@ -121,11 +140,17 @@
     (store-tl-symbol-value block *current-catch-block* tls)))
 
 (define-vop (unlink-unwind-protect)
-    (:temporary (:sc unsigned-reg) block #!+sb-thread tls)
+    ;; NOTE: When we have both #!+sb-thread and #!+win32, we only need one temp
+    (:temporary (:sc unsigned-reg) block #!+sb-thread tls #!+win32 seh-frame)
   (:policy :fast-safe)
   (:translate %unwind-protect-breakup)
   (:generator 17
     (load-tl-symbol-value block *current-unwind-protect-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))
     (loadw block block unwind-block-current-uwp-slot)
     (store-tl-symbol-value block *current-unwind-protect-block* tls)))
 \f
@@ -164,9 +189,9 @@
                  (inst jmp :le default-lab)
                  (sc-case tn
                    ((descriptor-reg any-reg)
-                    (loadw tn start (- (1+ i))))
+                    (loadw tn start (frame-word-offset i)))
                    ((control-stack)
-                    (loadw move-temp start (- (1+ i)))
+                    (loadw move-temp start (frame-word-offset i))
                     (inst mov tn move-temp)))))
              (let ((defaulting-done (gen-label)))
                (emit-label defaulting-done)
@@ -228,3 +253,53 @@
   (: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)))))