linux-kernel - [PATCH 6d/10] lguest: the Makefiles

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Message-Id: <1171018733.2718.64.camel@localhost.localdomain>
Date:	Fri, 09 Feb 2007 21:58:53 +1100
From:	Rusty Russell <rusty@...tcorp.com.au>
To:	lkml - Kernel Mailing List <linux-kernel@...r.kernel.org>
Cc:	Andrew Morton <akpm@...l.org>, Andi Kleen <ak@....de>,
	virtualization <virtualization@...ts.osdl.org>
Subject: [PATCH 6d/10] lguest: the Makefiles

Finally, we put in the Makefile, so it will build.

You can see the pain involved in creating the switcher code
(hypervisor.S) ready to be copied into the top of memory.

Signed-off-by: Rusty Russell <rusty@...tcorp.com.au>

===================================================================
--- a/arch/i386/Makefile
+++ b/arch/i386/Makefile
@@ -108,6 +108,7 @@ drivers-$(CONFIG_PCI)			+= arch/i386/pci
 # must be linked after kernel/
 drivers-$(CONFIG_OPROFILE)		+= arch/i386/oprofile/
 drivers-$(CONFIG_PM)			+= arch/i386/power/
+drivers-$(CONFIG_LGUEST_GUEST)		+= arch/i386/lguest/
 
 CFLAGS += $(mflags-y)
 AFLAGS += $(mflags-y)
===================================================================
--- /dev/null
+++ b/arch/i386/lguest/Makefile
@@ -0,0 +1,22 @@
+# Guest requires the paravirt_ops replacement and the bus driver.
+obj-$(CONFIG_LGUEST_GUEST) += lguest.o lguest_bus.o
+
+# Host requires the other files, which can be a module.
+obj-$(CONFIG_LGUEST)	+= lg.o
+lg-objs := core.o hypercalls.o page_tables.o interrupts_and_traps.o \
+	segments.o io.o lguest_user.o
+
+# We use top 4MB for guest traps page, then hypervisor. */
+HYPE_ADDR := (0xFFC00000+4096)
+# The data is only 1k (256 interrupt handler pointers)
+HYPE_DATA_SIZE := 1024
+CFLAGS += -DHYPE_ADDR="$(HYPE_ADDR)" -DHYPE_DATA_SIZE="$(HYPE_DATA_SIZE)"
+
+$(obj)/core.o: $(obj)/hypervisor-blob.c
+# This links the hypervisor in the right place and turns it into a C array.
+$(obj)/hypervisor-raw: $(obj)/hypervisor.o
+	@$(LD) -static -Tdata=`printf %#x $$(($(HYPE_ADDR)))` -Ttext=`printf %#x $$(($(HYPE_ADDR)+$(HYPE_DATA_SIZE)))` -o $@ $< && $(OBJCOPY) -O binary $@
+$(obj)/hypervisor-blob.c: $(obj)/hypervisor-raw
+	@od -tx1 -An -v $< | sed -e 's/^ /0x/' -e 's/$$/,/' -e 's/ /,0x/g' > $@
+
+clean-files := hypervisor-blob.c hypervisor-raw


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