-#
-# Copyright (C) 2006 OpenWrt.org
+#
+# Copyright (C) 2006-2007 OpenWrt.org
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#
--include $(INCLUDE_DIR)/modules-$(KERNEL).mk
+include $(INCLUDE_DIR)/host.mk
+include $(INCLUDE_DIR)/prereq.mk
-LINUX_SOURCE:=linux-$(LINUX_VERSION).tar.bz2
-LINUX_SITE=http://www.us.kernel.org/pub/linux/kernel/v$(KERNEL) \
- http://www.us.kernel.org/pub/linux/kernel/v$(KERNEL) \
- http://www.kernel.org/pub/linux/kernel/v$(KERNEL) \
- http://www.de.kernel.org/pub/linux/kernel/v$(KERNEL)
+ifneq ($(DUMP),1)
+ all: compile
+endif
-KERNEL_IDIR:=$(KERNEL_BUILD_DIR)/kernel-ipkg
-KERNEL_IPKG:=$(KERNEL_BUILD_DIR)/kernel_$(LINUX_VERSION)-$(BOARD)-$(LINUX_RELEASE)_$(ARCH).ipk
-TARGETS += $(KERNEL_IPKG)
-INSTALL_TARGETS += $(KERNEL_IPKG)
+export QUILT=1
+STAMP_PREPARED:=$(LINUX_DIR)/.prepared
+STAMP_CONFIGURED:=$(LINUX_DIR)/.configured
+include $(INCLUDE_DIR)/download.mk
+include $(INCLUDE_DIR)/quilt.mk
+include $(INCLUDE_DIR)/kernel-defaults.mk
-$(TARGETS): $(PACKAGE_DIR)
+define Kernel/Prepare
+ $(call Kernel/Prepare/Default)
+endef
+
+define Kernel/Configure
+ $(call Kernel/Configure/Default)
+endef
-$(LINUX_DIR):
- mkdir -p $@
+define Kernel/CompileModules
+ $(call Kernel/CompileModules/Default)
+endef
-$(PACKAGE_DIR):
- mkdir -p $@
+define Kernel/CompileImage
+ $(call Kernel/CompileImage/Default)
+ $(call Kernel/CompileImage/Initramfs)
+endef
-$(DL_DIR)/$(LINUX_SOURCE):
- -mkdir -p $(DL_DIR)
- $(SCRIPT_DIR)/download.pl $(DL_DIR) $(LINUX_SOURCE) $(LINUX_KERNEL_MD5SUM) $(LINUX_SITE)
+define Kernel/Clean
+ $(call Kernel/Clean/Default)
+endef
-$(LINUX_DIR)/.unpacked: $(DL_DIR)/$(LINUX_SOURCE)
- -mkdir -p $(KERNEL_BUILD_DIR)
- bzcat $(DL_DIR)/$(LINUX_SOURCE) | tar -C $(KERNEL_BUILD_DIR) $(TAR_OPTIONS) -
- touch $@
-
-ifeq ($(KERNEL),2.4)
-$(LINUX_DIR)/.configured: $(LINUX_DIR)/.patched
- $(SED) "s,^CROSS_COMPILE.*,CROSS_COMPILE=$(KERNEL_CROSS),g;" \
- $(LINUX_DIR)/Makefile \
- $(LINUX_DIR)/arch/*/Makefile
- $(SED) "s,\-mcpu=,\-mtune=,g;" $(LINUX_DIR)/arch/mips/Makefile
- $(MAKE) -C $(LINUX_DIR) ARCH=$(LINUX_KARCH) oldconfig include/linux/compile.h include/linux/version.h
- touch $@
-
-$(LINUX_DIR)/.depend_done: $(LINUX_DIR)/.configured
- $(MAKE) -C $(LINUX_DIR) CROSS_COMPILE="$(KERNEL_CROSS)" ARCH=$(LINUX_KARCH) dep
- touch $@
-
-$(LINUX_DIR)/vmlinux: $(LINUX_DIR)/.depend_done
-else
-$(LINUX_DIR)/.configured: $(LINUX_DIR)/.patched
- $(MAKE) -C $(LINUX_DIR) CROSS_COMPILE="$(KERNEL_CROSS)" ARCH=$(LINUX_KARCH) oldconfig prepare scripts
- touch $@
-endif
+define Download/kernel
+ URL:=$(LINUX_SITE)
+ FILE:=$(LINUX_SOURCE)
+ MD5SUM:=$(LINUX_KERNEL_MD5SUM)
+endef
-ramdisk-config: $(LINUX_DIR)/.configured FORCE
- mv $(LINUX_DIR)/.config $(LINUX_DIR)/.config.old
- grep -v INITRAMFS $(LINUX_DIR)/.config.old > $(LINUX_DIR)/.config
-ifeq ($(CONFIG_TARGET_ROOTFS_INITRAMFS),y)
- echo 'CONFIG_INITRAMFS_SOURCE="../../root"' >> $(LINUX_DIR)/.config
- echo 'CONFIG_INITRAMFS_ROOT_UID=0' >> $(LINUX_DIR)/.config
- echo 'CONFIG_INITRAMFS_ROOT_GID=0' >> $(LINUX_DIR)/.config
- mkdir -p $(BUILD_DIR)/root/etc/init.d
- $(CP) ../generic-2.6/files/init $(BUILD_DIR)/root/
-else
- rm -f $(BUILD_DIR)/root/init $(BUILD_DIR)/root/etc/init.d/S00initramfs
- echo 'CONFIG_INITRAMFS_SOURCE=""' >> $(LINUX_DIR)/.config
+ifdef CONFIG_COLLECT_KERNEL_DEBUG
+ define Kernel/CollectDebug
+ rm -rf $(KERNEL_BUILD_DIR)/debug
+ mkdir -p $(KERNEL_BUILD_DIR)/debug/modules
+ $(CP) $(LINUX_DIR)/vmlinux $(KERNEL_BUILD_DIR)/debug/
+ -$(CP) \
+ $(STAGING_DIR_ROOT)/lib/modules/$(LINUX_VERSION)/* \
+ $(KERNEL_BUILD_DIR)/debug/modules/
+ $(FIND) $(KERNEL_BUILD_DIR)/debug -type f | $(XARGS) $(KERNEL_CROSS)strip --only-keep-debug
+ $(TAR) c -C $(KERNEL_BUILD_DIR) debug | bzip2 -c -9 > $(BIN_DIR)/kernel-debug.tar.bz2
+ endef
endif
-$(LINUX_DIR)/vmlinux: $(STAMP_DIR)/.linux-compile pkg-install ramdisk-config
- $(MAKE) -C $(LINUX_DIR) CROSS_COMPILE="$(KERNEL_CROSS)" ARCH=$(LINUX_KARCH) PATH=$(TARGET_PATH)
-
-$(LINUX_KERNEL): $(LINUX_DIR)/vmlinux
- $(TARGET_CROSS)objcopy -O binary -R .reginfo -R .note -R .comment -R .mdebug -S $< $@
- touch -c $(LINUX_KERNEL)
-
-$(LINUX_DIR)/.modules_done:
- rm -rf $(KERNEL_BUILD_DIR)/modules
- $(MAKE) -C "$(LINUX_DIR)" CROSS_COMPILE="$(KERNEL_CROSS)" ARCH=$(LINUX_KARCH) PATH="$(TARGET_PATH)" modules
- $(MAKE) -C "$(LINUX_DIR)" CROSS_COMPILE="$(KERNEL_CROSS)" DEPMOD=true INSTALL_MOD_PATH=$(KERNEL_BUILD_DIR)/modules modules_install
- touch $(LINUX_DIR)/.modules_done
-
-modules: $(LINUX_DIR)/.modules_done
-packages: $(TARGETS)
-
-$(STAMP_DIR)/.linux-compile:
- @$(MAKE) modules
- @$(MAKE) packages
- ln -sf $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION) $(BUILD_DIR)/linux
- touch $@
-
-$(KERNEL_IPKG):
- rm -rf $(KERNEL_IDIR)
- mkdir -p $(KERNEL_IDIR)/etc
- $(SCRIPT_DIR)/make-ipkg-dir.sh $(KERNEL_IDIR) ../control/kernel.control $(LINUX_VERSION)-$(BOARD)-$(LINUX_RELEASE) $(ARCH)
- if [ -f ./config/$(BOARD).modules ]; then \
- cp ./config/$(BOARD).modules $(KERNEL_IDIR)/etc/modules; \
- fi
- $(IPKG_BUILD) $(KERNEL_IDIR) $(KERNEL_BUILD_DIR)
-
-$(TOPDIR)/.kernel.mk:
- echo "BOARD:=$(BOARD)" > $@
- echo "LINUX_VERSION:=$(LINUX_VERSION)" >> $@
- echo "LINUX_RELEASE:=$(LINUX_RELEASE)" >> $@
-
-pkg-install: FORCE
- @for pkg in $(INSTALL_TARGETS); do \
- $(IPKG) install $$pkg || echo; \
- done
-
-source: $(DL_DIR)/$(LINUX_SOURCE)
-prepare: $(LINUX_DIR)/.configured
- @mkdir -p $(STAMP_DIR) $(PACKAGE_DIR)
-
-compile: prepare $(STAMP_DIR)/.linux-compile
-
-install: compile $(LINUX_KERNEL)
-
-mostlyclean: FORCE
- rm -f $(STAMP_DIR)/.linux-compile
- rm -f $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION)/.modules_done
- rm -f $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION)/.drivers-unpacked
- $(MAKE) -C $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION) clean
- rm -f $(LINUX_KERNEL)
-
-rebuild: FORCE
- -$(MAKE) mostlyclean
- if [ -f $(LINUX_KERNEL) ]; then \
- $(MAKE) clean; \
- fi
- $(MAKE) compile $(MAKE_TRACE)
-
-clean: FORCE
- rm -f $(STAMP_DIR)/.linux-compile
- rm -rf $(KERNEL_BUILD_DIR)
- rm -f $(TARGETS)
+define BuildKernel
+ $(if $(QUILT),$(Build/Quilt))
+ $(if $(LINUX_SITE),$(call Download,kernel))
+ $(STAMP_PREPARED): $(if $(LINUX_SITE),$(DL_DIR)/$(LINUX_SOURCE))
+ -rm -rf $(KERNEL_BUILD_DIR)
+ -mkdir -p $(KERNEL_BUILD_DIR)
+ $(Kernel/Prepare)
+ touch $$@
+
+ $(KERNEL_BUILD_DIR)/symtab.h: FORCE
+ rm -f $(KERNEL_BUILD_DIR)/symtab.h
+ touch $(KERNEL_BUILD_DIR)/symtab.h
+ +$(MAKE) $(KERNEL_MAKEOPTS) vmlinux
+ find $(LINUX_DIR) $(STAGING_DIR_ROOT)/lib/modules -name \*.ko | \
+ xargs $(TARGET_CROSS)nm | \
+ awk '$$$$1 == "U" { print $$$$2 } ' | \
+ sort -u > $(KERNEL_BUILD_DIR)/mod_symtab.txt
+ $(TARGET_CROSS)nm -n $(LINUX_DIR)/vmlinux.o | grep -F ' r __ksymtab' | sed -e 's,........ r __ksymtab_,,' > $(KERNEL_BUILD_DIR)/kernel_symtab.txt
+ grep -Ff $(KERNEL_BUILD_DIR)/mod_symtab.txt $(KERNEL_BUILD_DIR)/kernel_symtab.txt > $(KERNEL_BUILD_DIR)/sym_include.txt
+ grep -Fvf $(KERNEL_BUILD_DIR)/mod_symtab.txt $(KERNEL_BUILD_DIR)/kernel_symtab.txt > $(KERNEL_BUILD_DIR)/sym_exclude.txt
+ ( \
+ echo '#define SYMTAB_KEEP \'; \
+ cat $(KERNEL_BUILD_DIR)/sym_include.txt | \
+ awk '{print "KEEP(*(___ksymtab+" $$$$1 ")) \\" }'; \
+ echo; \
+ echo '#define SYMTAB_KEEP_GPL \'; \
+ cat $(KERNEL_BUILD_DIR)/sym_include.txt | \
+ awk '{print "KEEP(*(___ksymtab_gpl+" $$$$1 ")) \\" }'; \
+ echo; \
+ echo '#define SYMTAB_DISCARD \'; \
+ cat $(KERNEL_BUILD_DIR)/sym_exclude.txt | \
+ awk '{print "*(___ksymtab+" $$$$1 ") \\" }'; \
+ echo; \
+ echo '#define SYMTAB_DISCARD_GPL \'; \
+ cat $(KERNEL_BUILD_DIR)/sym_exclude.txt | \
+ awk '{print "*(___ksymtab_gpl+" $$$$1 ") \\" }'; \
+ echo; \
+ ) > $$@
+
+ $(STAMP_CONFIGURED): $(STAMP_PREPARED) $(LINUX_KCONFIG_LIST) $(TOPDIR)/.config
+ $(Kernel/Configure)
+ touch $$@
+
+ $(LINUX_DIR)/.modules: $(STAMP_CONFIGURED) $(LINUX_DIR)/.config FORCE
+ $(Kernel/CompileModules)
+ touch $$@
+
+ $(LINUX_DIR)/.image: $(STAMP_CONFIGURED) $(if $(CONFIG_STRIP_KERNEL_EXPORTS),$(KERNEL_BUILD_DIR)/symtab.h) FORCE
+ $(Kernel/CompileImage)
+ $(Kernel/CollectDebug)
+ touch $$@
+
+ mostlyclean: FORCE
+ $(Kernel/Clean)
+
+ define BuildKernel
+ endef
+
+ download: $(DL_DIR)/$(LINUX_SOURCE)
+ prepare: $(STAMP_CONFIGURED)
+ compile: $(LINUX_DIR)/.modules
+ $(MAKE) -C image compile TARGET_BUILD=
+
+ oldconfig menuconfig nconfig: $(STAMP_PREPARED) $(STAMP_CHECKED) FORCE
+ rm -f $(STAMP_CONFIGURED)
+ $(LINUX_RECONF_CMD) > $(LINUX_DIR)/.config
+ $(_SINGLE)$(MAKE) -C $(LINUX_DIR) $(KERNEL_MAKEOPTS) $$@
+ $(LINUX_RECONF_DIFF) $(LINUX_DIR)/.config > $(LINUX_RECONFIG_TARGET)
+
+ install: $(LINUX_DIR)/.image
+ +$(MAKE) -C image compile install TARGET_BUILD=
+
+ clean: FORCE
+ rm -rf $(KERNEL_BUILD_DIR)
-define AutoLoad
-add_module $(1) "$(2)";
-endef
+ image-prereq:
+ @+$(NO_TRACE_MAKE) -s -C image prereq TARGET_BUILD=
-define KernelPackage/Defaults
- VERSION:=$(LINUX_VERSION)-$(BOARD)-$(LINUX_RELEASE)
- DEPENDS:=
- MAINTAINER:=OpenWrt Developers Team <openwrt-devel@openwrt.org>
- SOURCE:=$(patsubst $(TOPDIR)/%,%,${shell pwd})
- PKGARCH:=$(ARCH)
- PRIORITY:=optional
- KCONFIG:=
- FILES:=
- BUILD:=
- MODULES:=
- TITLE:=
- DESCRIPTION:=
-endef
+ prereq: image-prereq
-define KernelPackage
- NAME:=$(1)
- $(eval $(call KernelPackage/Defaults))
- $(eval $(call KernelPackage/$(1)))
- $(eval $(call KernelPackage/$(1)/$(KERNEL)))
-
- PKG_$(1) := $(PACKAGE_DIR)/kmod-$(1)_$(LINUX_VERSION)-$(BOARD)-$(LINUX_RELEASE)_$(ARCH).ipk
- I_$(1) := $(KMOD_BUILD_DIR)/ipkg/$(1)
-
- IDEPEND_$(1):='kernel ($(LINUX_VERSION)-$(BOARD)-$(LINUX_RELEASE))' $(DEPENDS)
-
- ifeq ($$(strip $(KCONFIG)),)
- KDEPEND_$(1):=m
- else
- KDEPEND_$(1):=$($(KCONFIG))
- endif
- ifeq ($$(KDEPEND_$(1)),m)
- ifneq ($(CONFIG_PACKAGE_kmod-$(1)),)
- packages: $$(PKG_$(1))
- endif
- ifeq ($(CONFIG_PACKAGE_kmod-$(1)),y)
- install-kmod-$(1): FORCE
- $(IPKG) install $$(PKG_$(1))
- pkg-install: install-kmod-$(1)
- endif
- endif
-
- $$(PKG_$(1)): $(LINUX_DIR)/.modules_done
- rm -rf $$(I_$(1))
- install -d -m0755 $$(I_$(1))/CONTROL
- echo "Package: kmod-$(1)" > $$(I_$(1))/CONTROL/control
- echo "Version: $(VERSION)" >> $$(I_$(1))/CONTROL/control
- ( \
- DEPENDS=; \
- for depend in $$(filter-out @%,$$(IDEPEND_$(1))); do \
- DEPENDS=$$$${DEPENDS:+$$$$DEPENDS, }$$$${depend##+}; \
- done; \
- echo "Depends: $$$$DEPENDS" >> $$(I_$(1))/CONTROL/control; \
- )
- echo "Source: $(SOURCE)" >> $$(I_$(1))/CONTROL/control
- echo "Section: kernel" >> $$(I_$(1))/CONTROL/control
- echo "Priority: $(PRIORITY)" >> $$(I_$(1))/CONTROL/control
- echo "Maintainer: $(MAINTAINER)" >> $$(I_$(1))/CONTROL/control
- echo "Architecture: $(PKGARCH)" >> $$(I_$(1))/CONTROL/control
- echo "Description: $(DESCRIPTION)" | sed -e 's,\\,\n ,g' >> $$(I_$(1))/CONTROL/control
- ifneq ($(strip $(FILES)),)
- mkdir -p $$(I_$(1))/lib/modules/$(LINUX_VERSION)
- $(CP) $(FILES) $$(I_$(1))/lib/modules/$(LINUX_VERSION)/
- endif
- ifneq ($(MODULES),)
- export modules=; \
- add_module() { \
- mkdir -p $$(I_$(1))/etc/modules.d; \
- echo "$$$$2" > $$(I_$(1))/etc/modules.d/$$$$1-$(1); \
- modules="$$$${modules:+$$$$modules }$$$$1-$(1)"; \
- }; \
- $(MODULES) \
- mkdir -p $$(I_$(1))/etc/modules.d; \
- echo "#!/bin/sh" >> $$(I_$(1))/CONTROL/postinst; \
- echo "[ -z \"\$$$$IPKG_INSTROOT\" ] || exit" >> $$(I_$(1))/CONTROL/postinst; \
- echo ". /etc/functions.sh" >> $$(I_$(1))/CONTROL/postinst; \
- echo "load_modules $$$$modules" >> $$(I_$(1))/CONTROL/postinst; \
- chmod 0755 $$(I_$(1))/CONTROL/postinst;
- endif
- $(IPKG_BUILD) $$(I_$(1)) $(PACKAGE_DIR)
endef
-
--include $(INCLUDE_DIR)/modules.mk
-
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