This makes UML load at 0x8048000 rather than 0xa0000000 when 
CONFIG_MODE_SKAS is on and CONFIG_MODE_TT is off.  This will make it 
more valgrind-friendly, and also allow much greater physical memory 
sizes without needing to use highmem.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
---

 um-linux-2.4.27-paolo/arch/um/Makefile      |    6 +++++-
 um-linux-2.4.27-paolo/arch/um/Makefile-i386 |    8 +++++++-
 2 files changed, 12 insertions(+), 2 deletions(-)

diff -puN arch/um/Makefile~load-low arch/um/Makefile
--- um-linux-2.4.27/arch/um/Makefile~load-low	2005-04-15 11:12:58.000000000 +0200
+++ um-linux-2.4.27-paolo/arch/um/Makefile	2005-04-15 11:12:58.000000000 +0200
@@ -93,9 +93,13 @@ endif
 LD_SCRIPT-y := $(ARCH_DIR)/$(LD_SCRIPT-y)
 M4_MODE_TT := $(shell [ "$(CONFIG_MODE_TT)" = "y" ] && echo -DMODE_TT)
 
+ifndef START
+  START = $$(($(TOP_ADDR) - $(SIZE)))
+endif
+
 $(LD_SCRIPT-y): $(LD_SCRIPT-y).in
 	pages=$$(( 1 << $(CONFIG_KERNEL_STACK_ORDER) )) ; \
-	m4 -DSTART=$$(($(TOP_ADDR) - $(SIZE))) -DELF_ARCH=$(ELF_ARCH) \
+	m4 -DSTART=$(START) -DELF_ARCH=$(ELF_ARCH) \
 		-DELF_FORMAT=$(ELF_FORMAT) $(M4_MODE_TT) \
 		-DKERNEL_STACK_SIZE=$$(( 4096 * $$pages )) $< > $@
 
diff -puN arch/um/Makefile-i386~load-low arch/um/Makefile-i386
--- um-linux-2.4.27/arch/um/Makefile-i386~load-low	2005-04-15 11:12:58.000000000 +0200
+++ um-linux-2.4.27-paolo/arch/um/Makefile-i386	2005-04-15 11:12:58.000000000 +0200
@@ -1,9 +1,15 @@
-ifeq ($(CONFIG_HOST_2G_2G), y)
+ifeq ($(CONFIG_HOST_2G_2G),y)
 TOP_ADDR = 0x80000000
 else
 TOP_ADDR = 0xc0000000
 endif
 
+ifeq ($(CONFIG_MODE_SKAS),y)
+  ifneq ($(CONFIG_MODE_TT),y)
+     START = 0x8048000
+  endif
+endif
+
 ARCH_CFLAGS = -U__$(SUBARCH)__ -U$(SUBARCH)
 
 ifneq ($(CONFIG_GPROF),y)
_