0.8.3.23

[sbcl.git] / src / compiler / hppa / macros.lisp

diff --git a/src/compiler/hppa/macros.lisp b/src/compiler/hppa/macros.lisp
index 0995411..d0bebfc 100644 (file)
--- a/src/compiler/hppa/macros.lisp
+++ b/src/compiler/hppa/macros.lisp
@@ -184,8 +184,7 @@
   Emit code for a continuable error with the specified Error-Code and
   context Values.  If the error is continued, execution resumes after
   the GENERATE-CERROR-CODE form."
-  (let ((continue (gensym "CONTINUE-LABEL-"))
-       (error (gensym "ERROR-LABEL-")))
+  (with-unique-names (continue error)
     `(let ((,continue (gen-label)))
        (emit-label ,continue)
        (assemble (*elsewhere*)
@@ -193,21 +192,18 @@
           (emit-label ,error)
           (cerror-call ,vop ,continue ,error-code ,@values)
           ,error)))))
-
-
 \f
-;;; PSEUDO-ATOMIC -- Handy macro for making sequences look atomic.
-;;;
+;;;; PSEUDO-ATOMIC
+
+;;; handy macro for making sequences look atomic
 (defmacro pseudo-atomic ((&key (extra 0)) &rest forms)
   (let ((n-extra (gensym)))
     `(let ((,n-extra ,extra))
        (inst addi 4 alloc-tn alloc-tn)
        ,@forms
        (inst addit (- ,n-extra 4) alloc-tn alloc-tn :od))))
-
-
 \f
-;;;; Indexed references:
+;;;; indexed references
 
 (deftype load/store-index (scale lowtag min-offset
                                 &optional (max-offset min-offset))
@@ -368,3 +364,12 @@
                 object)
           (move value result))))))
 
+
+(defmacro sb!sys::with-pinned-objects ((&rest objects) &body body)
+  "Arrange with the garbage collector that the pages occupied by
+OBJECTS will not be moved in memory for the duration of BODY.
+Useful for e.g. foreign calls where another thread may trigger
+garbage collection.  This is currently implemented by disabling GC"
+  (declare (ignore objects))           ;should we eval these for side-effect?
+  `(without-gcing
+    ,@body))