openwrt/include/kernel-build.mk

#
# Copyright (C) 2006-2007 OpenWrt.org
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#
include $(INCLUDE_DIR)/host.mk
include $(INCLUDE_DIR)/prereq.mk

ifneq ($(DUMP),1)
  all: compile
endif

STAMP_PREPARED:=$(LINUX_DIR)/.prepared
STAMP_CONFIGURED:=$(LINUX_DIR)/.configured
include $(INCLUDE_DIR)/download.mk
include $(INCLUDE_DIR)/quilt.mk
include $(INCLUDE_DIR)/kernel-defaults.mk

define Kernel/Prepare
	$(call Kernel/Prepare/Default)
endef

define Kernel/Configure
	$(call Kernel/Configure/Default)
endef

define Kernel/CompileModules
	$(call Kernel/CompileModules/Default)
endef

define Kernel/CompileImage
	$(call Kernel/CompileImage/Default)
endef

define Kernel/Clean
	$(call Kernel/Clean/Default)
endef

define Download/kernel
  URL:=$(LINUX_SITE)
  FILE:=$(LINUX_SOURCE)
  MD5SUM:=$(LINUX_KERNEL_MD5SUM)
endef

define BuildKernel
  $(if $(QUILT),$(Build/Quilt))
  $(if $(LINUX_SITE),$(call Download,kernel))

  $(STAMP_PREPARED): $(DL_DIR)/$(LINUX_SOURCE)
	-rm -rf $(KERNEL_BUILD_DIR)
	-mkdir -p $(KERNEL_BUILD_DIR)
	$(Kernel/Prepare)
	touch $$@

  $(STAMP_CONFIGURED): $(STAMP_PREPARED) $(LINUX_CONFIG) $(GENERIC_LINUX_CONFIG) $(TOPDIR)/.config
	$(Kernel/Configure)
	touch $$@

  $(LINUX_DIR)/.modules: $(STAMP_CONFIGURED) $(LINUX_DIR)/.config FORCE
	$(Kernel/CompileModules)
	touch $$@

  $(LINUX_DIR)/.image: $(STAMP_CONFIGURED) FORCE
	$(Kernel/CompileImage)
	touch $$@
	
  mostlyclean: FORCE
	$(Kernel/Clean)

  define BuildKernel
  endef

  download: $(DL_DIR)/$(LINUX_SOURCE)
  prepare: $(STAMP_CONFIGURED)
  compile: $(LINUX_DIR)/.modules
	$(MAKE) -C image compile TARGET_BUILD=

  oldconfig menuconfig: $(STAMP_PREPARED) FORCE
	$(LINUX_CONFCMD) > $(LINUX_DIR)/.config
	touch $(LINUX_CONFIG)
	$(MAKE) -C $(LINUX_DIR) $(KERNEL_MAKEOPTS) $$@
	$(SCRIPT_DIR)/kconfig.pl '>' $(GENERIC_LINUX_CONFIG) $(LINUX_DIR)/.config > $(LINUX_CONFIG)
	$(Kernel/Configure)

  install: $(LINUX_DIR)/.image
	TARGET_BUILD="" $(MAKE) -C image compile install

  clean: FORCE
	rm -rf $(KERNEL_BUILD_DIR)

  rebuild: FORCE
	@$(MAKE) mostlyclean
	@if [ -f $(LINUX_KERNEL) ]; then \
		$(MAKE) clean; \
	fi
	@$(MAKE) compile

  image-prereq:
	@$(NO_TRACE_MAKE) -s -C image prereq TARGET_BUILD=

  prereq: image-prereq

endef
major target cleanup. it is now possible to have subtargets that can override many target settings, including arch - merge adm5120, adm5120eb. target profiles still need to be adapted for subtargets SVN-Revision: 8694 2007-09-09 03:55:42 +08:00			`#`
move default templates for the kernel build to kernel-defaults.mk (similar to package-defaults.mk) SVN-Revision: 6664 2007-03-24 21:42:54 +08:00			`# Copyright (C) 2006-2007 OpenWrt.org`
credit where credit is due SVN-Revision: 4091 2006-06-27 08:35:46 +08:00			`#`
			`# This is free software, licensed under the GNU General Public License v2.`
			`# See /LICENSE for more information.`
			`#`
Reorganize kernel configs - target/linux/*/config is now a directory. ./config/default will replace the old config and config-diff (format is like config-diff, the full kernel config is no longer kept in the build system) This commit removes all the kernel config stuff, the next one will add the replacement - there's no way to do this atomically with svn. SVN-Revision: 6337 2007-02-22 11:44:15 +08:00			`include $(INCLUDE_DIR)/host.mk`
add prereq checks for target/linux/* and target/image/*, check for fdisk for the x86 builds SVN-Revision: 5569 2006-11-19 05:12:18 +08:00			`include $(INCLUDE_DIR)/prereq.mk`

major target cleanup. it is now possible to have subtargets that can override many target settings, including arch - merge adm5120, adm5120eb. target profiles still need to be adapted for subtargets SVN-Revision: 8694 2007-09-09 03:55:42 +08:00			`ifneq ($(DUMP),1)`
make target/linux/* directories self-contained, use the selected kernel version for the toolchain, autogenerate menuconfig and makefile code for target selection SVN-Revision: 5498 2006-11-12 07:11:02 +08:00			`all: compile`
			`endif`

implement quilt handling for the kernel tree ... and there was much rejoicing! SVN-Revision: 7474 2007-06-03 16:28:05 +08:00			`STAMP_PREPARED:=$(LINUX_DIR)/.prepared`
			`STAMP_CONFIGURED:=$(LINUX_DIR)/.configured`
Refactor downloading code into download.mk Support multiple file downloads Support svn downloads SVN-Revision: 9057 2007-09-29 08:05:48 +08:00			`include $(INCLUDE_DIR)/download.mk`
implement quilt handling for the kernel tree ... and there was much rejoicing! SVN-Revision: 7474 2007-06-03 16:28:05 +08:00			`include $(INCLUDE_DIR)/quilt.mk`
move default templates for the kernel build to kernel-defaults.mk (similar to package-defaults.mk) SVN-Revision: 6664 2007-03-24 21:42:54 +08:00			`include $(INCLUDE_DIR)/kernel-defaults.mk`
put LINUX_KARCH in .kernel.mk SVN-Revision: 5013 2006-10-10 21:41:00 +08:00
cleanup/rewrite of the kernel build process SVN-Revision: 5226 2006-10-19 14:20:55 +08:00			`define Kernel/Prepare`
			`$(call Kernel/Prepare/Default)`
			`endef`
large target/linux cleanup SVN-Revision: 2877 2006-01-11 03:43:00 +08:00
cleanup/rewrite of the kernel build process SVN-Revision: 5226 2006-10-19 14:20:55 +08:00			`define Kernel/Configure`
			`$(call Kernel/Configure/Default)`
			`endef`
large target/linux cleanup SVN-Revision: 2877 2006-01-11 03:43:00 +08:00
cleanup/rewrite of the kernel build process SVN-Revision: 5226 2006-10-19 14:20:55 +08:00			`define Kernel/CompileModules`
			`$(call Kernel/CompileModules/Default)`
			`endef`

			`define Kernel/CompileImage`
			`$(call Kernel/CompileImage/Default)`
			`endef`
large target/linux cleanup SVN-Revision: 2877 2006-01-11 03:43:00 +08:00
cleanup/rewrite of the kernel build process SVN-Revision: 5226 2006-10-19 14:20:55 +08:00			`define Kernel/Clean`
			`$(call Kernel/Clean/Default)`
			`endef`

Refactor downloading code into download.mk Support multiple file downloads Support svn downloads SVN-Revision: 9057 2007-09-29 08:05:48 +08:00			`define Download/kernel`
			`URL:=$(LINUX_SITE)`
			`FILE:=$(LINUX_SOURCE)`
			`MD5SUM:=$(LINUX_KERNEL_MD5SUM)`
			`endef`

cleanup/rewrite of the kernel build process SVN-Revision: 5226 2006-10-19 14:20:55 +08:00			`define BuildKernel`
fixes for refresh/update handling SVN-Revision: 9063 2007-09-29 12:29:11 +08:00			`$(if $(QUILT),$(Build/Quilt))`
Refactor downloading code into download.mk Support multiple file downloads Support svn downloads SVN-Revision: 9057 2007-09-29 08:05:48 +08:00			`$(if $(LINUX_SITE),$(call Download,kernel))`
cleanup/rewrite of the kernel build process SVN-Revision: 5226 2006-10-19 14:20:55 +08:00
implement quilt handling for the kernel tree ... and there was much rejoicing! SVN-Revision: 7474 2007-06-03 16:28:05 +08:00			`$(STAMP_PREPARED): $(DL_DIR)/$(LINUX_SOURCE)`
cleanup/rewrite of the kernel build process SVN-Revision: 5226 2006-10-19 14:20:55 +08:00			`-rm -rf $(KERNEL_BUILD_DIR)`
			`-mkdir -p $(KERNEL_BUILD_DIR)`
major target cleanup. it is now possible to have subtargets that can override many target settings, including arch - merge adm5120, adm5120eb. target profiles still need to be adapted for subtargets SVN-Revision: 8694 2007-09-09 03:55:42 +08:00			`$(Kernel/Prepare)`
cleanup/rewrite of the kernel build process SVN-Revision: 5226 2006-10-19 14:20:55 +08:00			`touch $$@`

dynamically enable/disable kernel config options for kmod packages based on build system config SVN-Revision: 8026 2007-07-18 19:31:01 +08:00			`$(STAMP_CONFIGURED): $(STAMP_PREPARED) $(LINUX_CONFIG) $(GENERIC_LINUX_CONFIG) $(TOPDIR)/.config`
major target cleanup. it is now possible to have subtargets that can override many target settings, including arch - merge adm5120, adm5120eb. target profiles still need to be adapted for subtargets SVN-Revision: 8694 2007-09-09 03:55:42 +08:00			`$(Kernel/Configure)`
cleanup/rewrite of the kernel build process SVN-Revision: 5226 2006-10-19 14:20:55 +08:00			`touch $$@`
large target/linux cleanup SVN-Revision: 2877 2006-01-11 03:43:00 +08:00
kernel: fix dependencies for .config, use selections from oldconfig when running menuconfig SVN-Revision: 7997 2007-07-16 13:28:13 +08:00			`$(LINUX_DIR)/.modules: $(STAMP_CONFIGURED) $(LINUX_DIR)/.config FORCE`
major target cleanup. it is now possible to have subtargets that can override many target settings, including arch - merge adm5120, adm5120eb. target profiles still need to be adapted for subtargets SVN-Revision: 8694 2007-09-09 03:55:42 +08:00			`$(Kernel/CompileModules)`
cleanup/rewrite of the kernel build process SVN-Revision: 5226 2006-10-19 14:20:55 +08:00			`touch $$@`
large target/linux cleanup SVN-Revision: 2877 2006-01-11 03:43:00 +08:00
kernel: fix dependencies for .config, use selections from oldconfig when running menuconfig SVN-Revision: 7997 2007-07-16 13:28:13 +08:00			`$(LINUX_DIR)/.image: $(STAMP_CONFIGURED) FORCE`
major target cleanup. it is now possible to have subtargets that can override many target settings, including arch - merge adm5120, adm5120eb. target profiles still need to be adapted for subtargets SVN-Revision: 8694 2007-09-09 03:55:42 +08:00			`$(Kernel/CompileImage)`
cleanup/rewrite of the kernel build process SVN-Revision: 5226 2006-10-19 14:20:55 +08:00			`touch $$@`

			`mostlyclean: FORCE`
major target cleanup. it is now possible to have subtargets that can override many target settings, including arch - merge adm5120, adm5120eb. target profiles still need to be adapted for subtargets SVN-Revision: 8694 2007-09-09 03:55:42 +08:00			`$(Kernel/Clean)`
implement target profiles in menuconfig SVN-Revision: 5512 2006-11-12 13:06:56 +08:00
cleanup/rewrite of the kernel build process SVN-Revision: 5226 2006-10-19 14:20:55 +08:00			`define BuildKernel`
			`endef`
make target/linux/* directories self-contained, use the selected kernel version for the toolchain, autogenerate menuconfig and makefile code for target selection SVN-Revision: 5498 2006-11-12 07:11:02 +08:00
major target cleanup. it is now possible to have subtargets that can override many target settings, including arch - merge adm5120, adm5120eb. target profiles still need to be adapted for subtargets SVN-Revision: 8694 2007-09-09 03:55:42 +08:00			`download: $(DL_DIR)/$(LINUX_SOURCE)`
			`prepare: $(STAMP_CONFIGURED)`
			`compile: $(LINUX_DIR)/.modules`
			`$(MAKE) -C image compile TARGET_BUILD=`
build system cleanup/restructuring as described in http://lists.openwrt.org/pipermail/openwrt-devel/2007-August/001159.html SVN-Revision: 8362 2007-08-07 08:04:25 +08:00
major target cleanup. it is now possible to have subtargets that can override many target settings, including arch - merge adm5120, adm5120eb. target profiles still need to be adapted for subtargets SVN-Revision: 8694 2007-09-09 03:55:42 +08:00			`oldconfig menuconfig: $(STAMP_PREPARED) FORCE`
			`$(LINUX_CONFCMD) > $(LINUX_DIR)/.config`
fix kernel config on kernel_menuconfig abort SVN-Revision: 11076 2008-05-08 23:52:55 +08:00			`touch $(LINUX_CONFIG)`
fix kernel_menuconfig SVN-Revision: 8726 2007-09-10 09:04:57 +08:00			`$(MAKE) -C $(LINUX_DIR) $(KERNEL_MAKEOPTS) $$@`
major target cleanup. it is now possible to have subtargets that can override many target settings, including arch - merge adm5120, adm5120eb. target profiles still need to be adapted for subtargets SVN-Revision: 8694 2007-09-09 03:55:42 +08:00			`$(SCRIPT_DIR)/kconfig.pl '>' $(GENERIC_LINUX_CONFIG) $(LINUX_DIR)/.config > $(LINUX_CONFIG)`
properly clean up after kernel_{old,menu}config SVN-Revision: 8737 2007-09-11 08:14:37 +08:00			`$(Kernel/Configure)`
add top-level kernel_menuconfig target to unpack and reconfigure the kernel - uses config.pl to generate target/linux/*/config and config-diff SVN-Revision: 6310 2007-02-17 00:59:44 +08:00
major target cleanup. it is now possible to have subtargets that can override many target settings, including arch - merge adm5120, adm5120eb. target profiles still need to be adapted for subtargets SVN-Revision: 8694 2007-09-09 03:55:42 +08:00			`install: $(LINUX_DIR)/.image`
			`TARGET_BUILD="" $(MAKE) -C image compile install`
large target/linux cleanup SVN-Revision: 2877 2006-01-11 03:43:00 +08:00
major target cleanup. it is now possible to have subtargets that can override many target settings, including arch - merge adm5120, adm5120eb. target profiles still need to be adapted for subtargets SVN-Revision: 8694 2007-09-09 03:55:42 +08:00			`clean: FORCE`
cleanup/rewrite of the kernel build process SVN-Revision: 5226 2006-10-19 14:20:55 +08:00			`rm -rf $(KERNEL_BUILD_DIR)`
large target/linux cleanup SVN-Revision: 2877 2006-01-11 03:43:00 +08:00
major target cleanup. it is now possible to have subtargets that can override many target settings, including arch - merge adm5120, adm5120eb. target profiles still need to be adapted for subtargets SVN-Revision: 8694 2007-09-09 03:55:42 +08:00			`rebuild: FORCE`
cleanup/rewrite of the kernel build process SVN-Revision: 5226 2006-10-19 14:20:55 +08:00			`@$(MAKE) mostlyclean`
			`@if [ -f $(LINUX_KERNEL) ]; then \`
resync with kamikaze SVN-Revision: 3844 2006-05-31 03:38:38 +08:00			`$(MAKE) clean; \`
			`fi`
cleanup/rewrite of the kernel build process SVN-Revision: 5226 2006-10-19 14:20:55 +08:00			`@$(MAKE) compile`
large target/linux cleanup SVN-Revision: 2877 2006-01-11 03:43:00 +08:00
major target cleanup. it is now possible to have subtargets that can override many target settings, including arch - merge adm5120, adm5120eb. target profiles still need to be adapted for subtargets SVN-Revision: 8694 2007-09-09 03:55:42 +08:00			`image-prereq:`
large improvement for parallel builds. works without V=99 now and without warnings. tested with -j on an 2x dual core opteron machine SVN-Revision: 11414 2008-06-09 23:38:45 +08:00			`@$(NO_TRACE_MAKE) -s -C image prereq TARGET_BUILD=`
add support for new modules.mk format (no autogenerated Config.in yet) SVN-Revision: 4083 2006-06-26 09:55:47 +08:00
major target cleanup. it is now possible to have subtargets that can override many target settings, including arch - merge adm5120, adm5120eb. target profiles still need to be adapted for subtargets SVN-Revision: 8694 2007-09-09 03:55:42 +08:00			`prereq: image-prereq`

			`endef`