X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcode%2Fsparc-vm.lisp;h=1ef6009e1d18a5077e1e746f07d7c401a59e38c9;hb=dae76a317682df7472ee85d1a0f6a0248801a6ae;hp=c7f39f240a4d8f3f7b91e329412c90e763b68fa6;hpb=68fd2d2dd6f265669a8957accd8a33e62786a97e;p=sbcl.git

diff --git a/src/code/sparc-vm.lisp b/src/code/sparc-vm.lisp
index c7f39f2..1ef6009 100644
--- a/src/code/sparc-vm.lisp
+++ b/src/code/sparc-vm.lisp
@@ -9,13 +9,9 @@
 ;;;; provided with absolutely no warranty. See the COPYING and CREDITS
 ;;;; files for more information.
 (in-package "SB!VM")
-
 
-
 ;;; See x86-vm.lisp for a description of this.
 (define-alien-type os-context-t (struct os-context-t-struct))
-
-
 
 ;;;; MACHINE-TYPE and MACHINE-VERSION
 
@@ -23,10 +19,9 @@
   "Returns a string describing the type of the local machine."
   "SPARC")
 
-(defun machine-version ()
-  "Returns a string describing the version of the local machine."
-  "SPARC")
-
+;;; support for CL:MACHINE-VERSION defined OAOO elsewhere
+(defun get-machine-version ()
+  nil)
 
 (defun fixup-code-object (code offset fixup kind)
   (declare (type index offset))
@@ -95,23 +90,18 @@
 
 ;;; Given a signal context, return the floating point modes word in
 ;;; the same format as returned by FLOATING-POINT-MODES.
+
+;;; Under SunOS, we have a straightforward implementation in C:
+#!+sunos
+(define-alien-routine ("os_context_fp_control" context-floating-point-modes)
+    (sb!alien:unsigned 32)
+  (context (* os-context-t)))
+
+;;; Under Linux, we have to contend with utterly broken signal handling.
+#!+linux
 (defun context-floating-point-modes (context)
-  ;; FIXME: As of sbcl-0.6.7 and the big rewrite of signal handling for
-  ;; POSIXness and (at the Lisp level) opaque signal contexts,
-  ;; this is stubified. It needs to be rewritten as an
-  ;; alien function.
+  (declare (ignore context))
   (warn "stub CONTEXT-FLOATING-POINT-MODES")
-  ;; old code for Linux:
-  #+nil
-  (let ((cw (slot (deref (slot context 'fpstate) 0) 'cw))
-	(sw (slot (deref (slot context 'fpstate) 0) 'sw)))
-    ;;(format t "cw = ~4X~%sw = ~4X~%" cw sw)
-    ;; NOT TESTED -- Clear sticky bits to clear interrupt condition.
-    (setf (slot (deref (slot context 'fpstate) 0) 'sw) (logandc2 sw #x3f))
-    ;;(format t "new sw = ~X~%" (slot (deref (slot context 'fpstate) 0) 'sw))
-    ;; Simulate floating-point-modes VOP.
-    (logior (ash (logand sw #xffff) 16) (logxor (logand cw #xffff) #x3f)))
-
   0)
 
 ;;;; INTERNAL-ERROR-ARGS.
@@ -153,12 +143,12 @@
 				     vector-data-offset)
 			   (* length n-byte-bits))
     (let* ((index 0)
-	   (error-number (sb!c::read-var-integer vector index)))
+	   (error-number (sb!c:read-var-integer vector index)))
       (collect ((sc-offsets))
 	       (loop
 		(when (>= index length)
 		  (return))
-		(sc-offsets (sb!c::read-var-integer vector index)))
+		(sc-offsets (sb!c:read-var-integer vector index)))
 	       (values error-number (sc-offsets))))))
 
 (defun args-for-tagged-add-inst (context bad-inst)
@@ -192,10 +182,3 @@
 	       #.(error-number-or-lose 'unknown-error)))
 	    (list (sb!c::make-sc-offset descriptor-reg-sc-number reg)))))
 
-
-;;; Do whatever is necessary to make the given code component
-;;; executable.  On the sparc, we don't need to do anything, because
-;;; the i and d caches are unified.
-(defun sanctify-for-execution (component)
-  (declare (ignore component))
-  nil)