X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcompiler%2Fsparc%2Fmacros.lisp;h=70e1fbd139c8f6b59afd012d7c7e962cfa81e51b;hb=1b650be8b800cf96e2c268ae317fb26d0bf36827;hp=a7c2abd252b569acbb7c51e6fa0d6d92dc475d4c;hpb=27a028cff1559dec1cb1faaee01659ade816c908;p=sbcl.git

diff --git a/src/compiler/sparc/macros.lisp b/src/compiler/sparc/macros.lisp
index a7c2abd..70e1fbd 100644
--- a/src/compiler/sparc/macros.lisp
+++ b/src/compiler/sparc/macros.lisp
@@ -100,11 +100,9 @@
 
 
 
-;;;; Stack TN's
+;;;; stack TN's
 
-;;; Load-Stack-TN, Store-Stack-TN  --  Interface
-;;;
-;;;    Move a stack TN to a register and vice-versa.
+;;; Move a stack TN to a register and vice-versa.
 (defmacro load-stack-tn (reg stack)
   `(let ((reg ,reg)
 	 (stack ,stack))
@@ -200,8 +198,7 @@
   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*)
@@ -209,8 +206,6 @@
 	   (emit-label ,error)
 	   (cerror-call ,vop ,continue ,error-code ,@values)
 	   ,error)))))
-
-
 
 ;;; a handy macro for making sequences look atomic
 (defmacro pseudo-atomic ((&key (extra 0)) &rest forms)
@@ -230,3 +225,12 @@
 	;; The C code needs to process this correctly and fixup alloc-tn.
 	(inst t :ne pseudo-atomic-trap)))))
 
+
+(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))