X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcompiler%2Fhppa%2Fmacros.lisp;h=b0ceb5aec324b32e944ba88075579ecca9404568;hb=1af3faa2b79125b774c2182cab841ed7ee555bed;hp=d0d8a159f02b57d7ee13dbb9180fa1aa2ef3c6bd;hpb=670010e3f3dcd62efaf23f61abdc73950edb88c6;p=sbcl.git

diff --git a/src/compiler/hppa/macros.lisp b/src/compiler/hppa/macros.lisp
index d0d8a15..b0ceb5a 100644
--- a/src/compiler/hppa/macros.lisp
+++ b/src/compiler/hppa/macros.lisp
@@ -125,6 +125,8 @@
   Result-TN, and Temp-TN is a non-descriptor temp (which may be randomly used
   by the body.)  The body is placed inside the PSEUDO-ATOMIC, and presumably
   initializes the object."
+  (unless body
+    (bug "empty &body in WITH-FIXED-ALLOCATION"))
   (once-only ((result-tn result-tn) (temp-tn temp-tn)
 	      (type-code type-code) (size size))
     `(pseudo-atomic (:extra (pad-data-block ,size))
@@ -364,3 +366,12 @@
 		 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))