[Sbcl-commits] CVS: sbcl/src/runtime x86-assem.S,1.49,1.50

[Nikodemus S. <de...@us...>]

Update of /cvsroot/sbcl/sbcl/src/runtime
In directory sc8-pr-cvs8.sourceforge.net:/tmp/cvs-serv16153/src/runtime

Modified Files:
	x86-assem.S 
Log Message:
1.0.17.10: correct stack alignment for alloc() calls on Darwin/x86

 * 16 bytes at the point of call, not 16 bytes at some random-point-
   then-push-two-words.


Index: x86-assem.S
===================================================================
RCS file: /cvsroot/sbcl/sbcl/src/runtime/x86-assem.S,v
retrieving revision 1.49
retrieving revision 1.50
diff -u -d -r1.49 -r1.50
--- x86-assem.S	15 May 2008 15:37:50 -0000	1.49
+++ x86-assem.S	30 May 2008 17:29:27 -0000	1.50
@@ -435,9 +435,9 @@
 #define ALLOC(size)                                             \
         pushl   %ebp;              /* Save EBP               */ \
         movl    %esp,%ebp;         /* Save ESP to EBP        */ \
-        andl    $0xfffffff0,%esp;  /* Align stack            */ \
-        pushl   $0;                /* Padding                */ \
-        pushl   size;              /* Argument to alloc      */ \
+        pushl   $0;                /* Reserve space for arg  */ \
+        andl    $0xfffffff0,%esp;  /* Align stack to 16bytes */ \
+        movl    size, (%esp);      /* Argument to alloc      */ \
         call    GNAME(alloc);                                   \
         movl    %ebp,%esp;         /* Restore ESP from EBP   */ \
         popl    %ebp;              /* Restore EBP            */