build: remove Linux kernel build integration.

We haven't shipped a XenoLinux kernel for more releases than I can remember.
We held onto these because osstest was using them but this is no longer the
case.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>

Makefile

@@ -7,7 +7,7 @@
 all: dist
 
 -include config/Toplevel.mk
-SUBSYSTEMS?=xen kernels tools stubdom docs
+SUBSYSTEMS?=xen tools stubdom docs
 TARGS_DIST=$(patsubst %, dist-%, $(SUBSYSTEMS))
 TARGS_INSTALL=$(patsubst %, install-%, $(SUBSYSTEMS))
 
@@ -15,15 +15,15 @@ export XEN_ROOT=$(CURDIR)
 include Config.mk
 
 SUBARCH := $(subst x86_32,i386,$(XEN_TARGET_ARCH))
-export XEN_TARGET_ARCH SUBARCH XEN_SYSTYPE
-include buildconfigs/Rules.mk
+export XEN_TARGET_ARCH SUBARCH
+export DESTDIR
 
 # build and install everything into the standard system directories
 .PHONY: install
 install: $(TARGS_INSTALL)
 
 .PHONY: build
-build: kernels
+build:
 	$(MAKE) -C xen build
 	$(MAKE) -C tools build
 	$(MAKE) -C stubdom build
@@ -54,17 +54,12 @@ dist-%: install-%
 	@: # do nothing
 
 # Legacy dist targets
-.PHONY: xen tools stubdom kernels docs
+.PHONY: xen tools stubdom docs
 xen: dist-xen
 tools: dist-tools
-kernels: dist-kernels
 stubdom: dist-stubdom
 docs: dist-docs
 
-.PHONY: prep-kernels
-prep-kernels:
-	for i in $(XKERNELS) ; do $(MAKE) $$i-prep || exit 1; done
-
 .PHONY: install-xen
 install-xen:
 	$(MAKE) -C xen install
@@ -95,10 +90,6 @@ endif
 install-tools: $(QEMU_TRAD_DIR_TARGET) $(QEMU_XEN_DIR_TARGET)
 	$(MAKE) -C tools install
 
-.PHONY: install-kernels
-install-kernels:
-	for i in $(XKERNELS) ; do $(MAKE) $$i-install || exit 1; done
-
 .PHONY: install-stubdom
 install-stubdom: $(QEMU_TRAD_DIR_TARGET) install-tools
 	$(MAKE) -C stubdom install
@@ -122,27 +113,12 @@ install-docs:
 dev-docs:
 	$(MAKE) -C docs dev-docs
 
-# Build all the various kernels and modules
-.PHONY: kbuild
-kbuild: kernels
-
-# Delete the kernel build trees entirely
-.PHONY: kdelete
-kdelete:
-	for i in $(XKERNELS) ; do $(MAKE) $$i-delete ; done
-
-# Clean the kernel build trees
-.PHONY: kclean
-kclean:
-	for i in $(XKERNELS) ; do $(MAKE) $$i-clean ; done
-
-# build xen, the tools, and a domain 0 plus unprivileged linux-xen images,
-# and place them in the install directory. 'make install' should then
-# copy them to the normal system directories
+# build xen and the tools and place them in the install
+# directory. 'make install' should then copy them to the normal system
+# directories
 .PHONY: world
 world: 
 	$(MAKE) clean
-	$(MAKE) kdelete
 	$(MAKE) dist
 
 # Package a build in a debball file, that is inside a .deb format
@@ -159,7 +135,6 @@ debball: dist
 rpmball: dist
 	bash ./tools/misc/mkrpm $(XEN_ROOT) $$($(MAKE) -C xen xenversion --no-print-directory)
 
-# clean doesn't do a kclean
 .PHONY: clean
 clean::
 	$(MAKE) -C xen clean
@@ -170,7 +145,7 @@ ifeq (x86_64,$(XEN_TARGET_ARCH))
 endif
 	$(MAKE) -C docs clean
 
-# clean, but blow away kernel build tree plus tarballs
+# clean, but blow away tarballs
 .PHONY: distclean
 distclean:
 	rm -f config/Toplevel.mk
@@ -181,9 +156,7 @@ ifeq (x86_64,$(XEN_TARGET_ARCH))
 	XEN_TARGET_ARCH=x86_32 $(MAKE) -C stubdom distclean
 endif
 	$(MAKE) -C docs distclean
-	rm -rf dist patches/tmp
-	for i in $(ALLKERNELS) ; do $(MAKE) $$i-delete ; done
-	rm -rf patches/*/.makedep
+	rm -rf dist
 	rm -rf config.log config.status config.cache autom4te.cache
 
 # Linux name for GNU distclean
@@ -203,19 +176,15 @@ help:
 	@echo '  install          - build and install everything'
 	@echo '  install-xen      - build and install the Xen hypervisor'
 	@echo '  install-tools    - build and install the control tools'
-	@echo '  install-kernels  - build and install guest kernels'
 	@echo '  install-stubdom  - build and install the stubdomain images'
 	@echo '  install-docs     - build and install user documentation'
 	@echo ''
 	@echo 'Building targets:'
 	@echo '  dist             - build and install everything into local dist directory'
-	@echo '  world            - clean everything, delete guest kernel build'
-	@echo '                     trees then make dist'
+	@echo '  world            - clean everything then make dist'
 	@echo '  xen              - build and install Xen hypervisor'
 	@echo '  tools            - build and install tools'
 	@echo '  stubdom          - build and install the stubdomain images'
-	@echo '  kernels          - build and install guest kernels'
-	@echo '  kbuild           - synonym for make kernels'
 	@echo '  docs             - build and install user documentation'
 	@echo '  dev-docs         - build developer-only documentation'
 	@echo ''
@@ -223,11 +192,8 @@ help:
 	@echo '  clean            - clean the Xen, tools and docs (but not guest kernel trees)'
 	@echo '  distclean        - clean plus delete kernel build trees and'
 	@echo '                     local downloaded files'
-	@echo '  kdelete          - delete guest kernel build trees'
-	@echo '  kclean           - clean guest kernel build trees'
 	@echo ''
 	@echo 'Miscellaneous targets:'
-	@echo '  prep-kernels     - prepares kernel directories, does not build'
 	@echo '  uninstall        - attempt to remove installed Xen tools'
 	@echo '                     (use with extreme care!)'
 	@echo
@@ -255,11 +221,6 @@ uninstall:
 	make -C tools uninstall
 	rm -rf $(D)/boot/tboot*
 
-# Legacy targets for compatibility
-.PHONY: linux26
-linux26:
-	$(MAKE) 'KERNELS=linux-2.6*' kernels
-
 .PHONY: xenversion
 xenversion:
 	@$(MAKE) --no-print-directory -C xen xenversion