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Subject[RFC PATCH 06/35] Add vmlinuz build target.
The vmlinuz image is a stripped and compressed kernel image, it is
smaller than the vmlinux image and the Xen domain builder supports
loading compressed images directly.

Signed-off-by: Ian Pratt <ian.pratt@xensource.com>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
---
arch/i386/Makefile | 5 +++--
arch/i386/boot/Makefile | 10 +++++++++-
2 files changed, 12 insertions(+), 3 deletions(-)
--- linus-2.6.orig/arch/i386/Makefile
+++ linus-2.6/arch/i386/Makefile
@@ -108,15 +108,16 @@ CPPFLAGS += $(mflags-y)
boot := arch/i386/boot

PHONY += zImage bzImage compressed zlilo bzlilo \
- zdisk bzdisk fdimage fdimage144 fdimage288 isoimage install
+ zdisk bzdisk fdimage fdimage144 fdimage288 isoimage install vmlinuz

all: bzImage

# KBUILD_IMAGE specify target image being built
KBUILD_IMAGE := $(boot)/bzImage
zImage zlilo zdisk: KBUILD_IMAGE := arch/i386/boot/zImage
+vmlinuz: KBUILD_IMAGE := $(boot)/vmlinuz

-zImage bzImage: vmlinux
+zImage bzImage vmlinuz: vmlinux
$(Q)$(MAKE) $(build)=$(boot) $(KBUILD_IMAGE)

compressed: zImage
--- linus-2.6.orig/arch/i386/boot/Makefile
+++ linus-2.6/arch/i386/boot/Makefile
@@ -26,7 +26,7 @@ SVGA_MODE := -DSVGA_MODE=NORMAL_VGA
#RAMDISK := -DRAMDISK=512

targets := vmlinux.bin bootsect bootsect.o \
- setup setup.o zImage bzImage
+ setup setup.o zImage bzImage vmlinuz
subdir- := compressed

hostprogs-y := tools/build
@@ -128,5 +128,13 @@ zlilo: $(BOOTIMAGE)
cp System.map $(INSTALL_PATH)/
if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi

+$(obj)/vmlinuz: $(obj)/vmlinux-stripped FORCE
+ $(call if_changed,gzip)
+ @echo 'Kernel: $@ is ready' ' (#'`cat .version`')'
+
+$(obj)/vmlinux-stripped: OBJCOPYFLAGS := -g --strip-unneeded
+$(obj)/vmlinux-stripped: vmlinux FORCE
+ $(call if_changed,objcopy)
+
install:
sh $(srctree)/$(src)/install.sh $(KERNELRELEASE) $(BOOTIMAGE) System.map "$(INSTALL_PATH)"
--
-
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