[Sbcl-commits] CVS: sbcl/src/compiler/x86-64 c-call.lisp,1.18,1.19

[Juho S. <js...@us...>]

Update of /cvsroot/sbcl/sbcl/src/compiler/x86-64
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv8386/src/compiler/x86-64

Modified Files:
	c-call.lisp 
Log Message:
0.9.8.47: 
        Clear the direction flag on Lisp -> C transitions, as
        required by the x86-64 ABI. Fixes mysterious GC crashes on
        SuSE. (reported by Andrej Grozin and Hendrik Maryns)


Index: c-call.lisp
===================================================================
RCS file: /cvsroot/sbcl/sbcl/src/compiler/x86-64/c-call.lisp,v
retrieving revision 1.18
retrieving revision 1.19
diff -u -d -r1.18 -r1.19
--- c-call.lisp	8 Jan 2006 06:31:24 -0000	1.18
+++ c-call.lisp	20 Jan 2006 08:34:57 -0000	1.19
@@ -242,6 +242,8 @@
   (:vop-var vop)
   (:save-p t)
   (:generator 0
+    ;; ABI: Direction flag must be clear on function entry. -- JES, 2006-01-20
+    (inst cld)
     ;; ABI: AL contains amount of arguments passed in XMM registers
     ;; for vararg calls.
     (move-immediate rax