svn commit: trunk/busybox/arch/i386

vda at busybox.net vda at busybox.net
Mon Jul 23 21:05:07 UTC 2007


Author: vda
Date: 2007-07-23 14:05:06 -0700 (Mon, 23 Jul 2007)
New Revision: 19240

Log:
add comment why preferred stack boundary is 4 on i386



Modified:
   trunk/busybox/arch/i386/Makefile


Changeset:
Modified: trunk/busybox/arch/i386/Makefile
===================================================================
--- trunk/busybox/arch/i386/Makefile	2007-07-23 19:05:43 UTC (rev 19239)
+++ trunk/busybox/arch/i386/Makefile	2007-07-23 21:05:06 UTC (rev 19240)
@@ -2,4 +2,6 @@
 # Build system
 # ==========================================================================
 
+# -mpreferred-stack-boundary=2 is essential in preventing gcc 4.2.x
+# from aligning stack to 16 bytes. (Which is gcc's way of supporting SSE).
 CFLAGS += $(call cc-option,-march=i386 -mpreferred-stack-boundary=2,)




More information about the busybox-cvs mailing list