[Xen-devel] [RFC PATCH 02/35] Makefile support to build Xen subarch

[Chris Wright <chrisw@xxxxxxxxxxxx>]

Use arch/i386/mach-xen when building Xen subarch. The separate
subarchitecture allows us to hide details of interfacing with the
hypervisor from i386 common code.

Signed-off-by: Ian Pratt <ian.pratt@xxxxxxxxxxxxx>
Signed-off-by: Christian Limpach <Christian.Limpach@xxxxxxxxxxxx>
Signed-off-by: Chris Wright <chrisw@xxxxxxxxxxxx>
---
 arch/i386/Makefile          |    5 +++++
 arch/i386/mach-xen/Makefile |    7 +++++++
 2 files changed, 12 insertions(+)

--- linus-2.6.orig/arch/i386/Makefile
+++ linus-2.6/arch/i386/Makefile
@@ -71,6 +71,10 @@ mcore-$(CONFIG_X86_BIGSMP)   := mach-defau
 mflags-$(CONFIG_X86_SUMMIT) := -Iinclude/asm-i386/mach-summit
 mcore-$(CONFIG_X86_SUMMIT)  := mach-default
 
+# Xen subarch support
+mflags-$(CONFIG_X86_XEN)       := -Iinclude/asm-i386/mach-xen
+mcore-$(CONFIG_X86_XEN)                := mach-xen
+
 # generic subarchitecture
 mflags-$(CONFIG_X86_GENERICARCH) := -Iinclude/asm-i386/mach-generic
 mcore-$(CONFIG_X86_GENERICARCH) := mach-default
@@ -99,6 +103,7 @@ drivers-$(CONFIG_PM)                 += arch/i386/powe
 
 CFLAGS += $(mflags-y)
 AFLAGS += $(mflags-y)
+CPPFLAGS += $(mflags-y)
 
 boot := arch/i386/boot
 
--- /dev/null
+++ linus-2.6/arch/i386/mach-xen/Makefile
@@ -0,0 +1,7 @@
+#
+# Makefile for the linux kernel.
+#
+
+obj-y                          := setup.o
+
+setup-y                                := ../mach-default/setup.o

--

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