File tls-no-direct.diff of Package gcc46

Index: gcc/config/i386/linux.h
===================================================================
--- gcc/config/i386/linux.h.orig	2010-03-26 12:58:09.000000000 +0100
+++ gcc/config/i386/linux.h	2010-07-01 16:26:38.000000000 +0200
@@ -32,8 +32,13 @@ along with GCC; see the file COPYING3.
 #define DEFAULT_PCC_STRUCT_RETURN 1
 
 /* We arrange for the whole %gs segment to map the tls area.  */
+/*
+  This slows down Xen, so take a very small general performance hit
+  for not accessing the %gs segment with negative offsets by making
+  GCC not emit direct accesses to %gs at all.
 #undef TARGET_TLS_DIRECT_SEG_REFS_DEFAULT
 #define TARGET_TLS_DIRECT_SEG_REFS_DEFAULT MASK_TLS_DIRECT_SEG_REFS
+*/
 
 #undef ASM_COMMENT_START
 #define ASM_COMMENT_START "#"