-#
-# 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)/host.mk
--include $(INCLUDE_DIR)/modules-$(KERNEL).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$(KERNEL)
-
-KERNEL_IDIR:=$(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)
+include $(INCLUDE_DIR)/prereq.mk
+include $(INCLUDE_DIR)/depends.mk
-LINUX_KARCH:=$(shell echo $(ARCH) | sed -e 's/i[3-9]86/i386/' \
- -e 's/mipsel/mips/' \
- -e 's/mipseb/mips/' \
- -e 's/powerpc/ppc/' \
- -e 's/sh[234]/sh/' \
- -e 's/armeb/arm/' \
-)
+ifneq ($(DUMP),1)
+ all: compile
+endif
+KERNEL_FILE_DEPENDS=$(GENERIC_PATCH_DIR) $(PATCH_DIR) $(GENERIC_FILES_DIR) $(FILES_DIR)
+STAMP_PREPARED=$(LINUX_DIR)/.prepared$(if $(QUILT)$(DUMP),,_$(shell $(call find_md5,$(KERNEL_FILE_DEPENDS),)))
+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)
+ $(call Kernel/CompileImage/Initramfs)
+endef
+
+define Kernel/Clean
+ $(call Kernel/Clean/Default)
+endef
+
+define Download/kernel
+ URL:=$(LINUX_SITE)
+ FILE:=$(LINUX_SOURCE)
+ MD5SUM:=$(LINUX_KERNEL_MD5SUM)
+endef
+
+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 \
+ $(if $(SOURCE_DATE_EPOCH),--mtime="@$(SOURCE_DATE_EPOCH)") \
+ | bzip2 -c -9 > $(BIN_DIR)/kernel-debug.tar.bz2
+ endef
+endif
-$(TARGETS): $(PACKAGE_DIR)
+ifeq ($(DUMP)$(filter prereq clean refresh update,$(MAKECMDGOALS)),)
+ ifneq ($(if $(QUILT),,$(CONFIG_AUTOREBUILD)),)
+ define Kernel/Autoclean
+ $(PKG_BUILD_DIR)/.dep_files: $(STAMP_PREPARED)
+ $(call rdep,$(KERNEL_FILE_DEPENDS),$(STAMP_PREPARED),$(PKG_BUILD_DIR)/.dep_files,-x "*/.dep_*")
+ endef
+ endif
+endif
-$(PACKAGE_DIR):
- mkdir -p $@
+define BuildKernel
+ $(if $(QUILT),$(Build/Quilt))
+ $(if $(LINUX_SITE),$(call Download,kernel))
-$(DL_DIR)/$(LINUX_SOURCE):
- -mkdir -p $(DL_DIR)
- $(SCRIPT_DIR)/download.pl $(DL_DIR) $(LINUX_SOURCE) $(LINUX_KERNEL_MD5SUM) $(LINUX_SITE)
+ .NOTPARALLEL:
-$(LINUX_DIR)/.unpacked: $(DL_DIR)/$(LINUX_SOURCE)
+ $(Kernel/Autoclean)
+ $(STAMP_PREPARED): $(if $(LINUX_SITE),$(DL_DIR)/$(LINUX_SOURCE))
+ -rm -rf $(KERNEL_BUILD_DIR)
-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,\-mcpu=,\-mtune=,g;" $(LINUX_DIR)/arch/mips/Makefile
- $(MAKE) -C $(LINUX_DIR) CROSS_COMPILE="$(KERNEL_CROSS)" CC="$(KERNEL_CC)" ARCH=$(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)" CC="$(KERNEL_CC)" ARCH=$(LINUX_KARCH) oldconfig prepare scripts
- touch $@
-endif
+ $(Kernel/Prepare)
+ touch $$@
+
+ $(KERNEL_BUILD_DIR)/symtab.h: FORCE
+ rm -f $(KERNEL_BUILD_DIR)/symtab.h
+ touch $(KERNEL_BUILD_DIR)/symtab.h
+ +$(MAKE) $(KERNEL_MAKEOPTS) vmlinux
+ find $(LINUX_DIR) $(STAGING_DIR_ROOT)/lib/modules -name \*.ko | \
+ xargs $(TARGET_CROSS)nm | \
+ awk '$$$$1 == "U" { print $$$$2 } ' | \
+ sort -u > $(KERNEL_BUILD_DIR)/mod_symtab.txt
+ $(TARGET_CROSS)nm -n $(LINUX_DIR)/vmlinux.o | grep ' [rR] __ksymtab' | sed -e 's,........ [rR] __ksymtab_,,' > $(KERNEL_BUILD_DIR)/kernel_symtab.txt
+ grep -Ff $(KERNEL_BUILD_DIR)/mod_symtab.txt $(KERNEL_BUILD_DIR)/kernel_symtab.txt > $(KERNEL_BUILD_DIR)/sym_include.txt
+ grep -Fvf $(KERNEL_BUILD_DIR)/mod_symtab.txt $(KERNEL_BUILD_DIR)/kernel_symtab.txt > $(KERNEL_BUILD_DIR)/sym_exclude.txt
+ ( \
+ echo '#define SYMTAB_KEEP \'; \
+ cat $(KERNEL_BUILD_DIR)/sym_include.txt | \
+ awk '{print "KEEP(*(___ksymtab+" $$$$1 ")) \\" }'; \
+ echo; \
+ echo '#define SYMTAB_KEEP_GPL \'; \
+ cat $(KERNEL_BUILD_DIR)/sym_include.txt | \
+ awk '{print "KEEP(*(___ksymtab_gpl+" $$$$1 ")) \\" }'; \
+ echo; \
+ echo '#define SYMTAB_DISCARD \'; \
+ cat $(KERNEL_BUILD_DIR)/sym_exclude.txt | \
+ awk '{print "*(___ksymtab+" $$$$1 ") \\" }'; \
+ echo; \
+ echo '#define SYMTAB_DISCARD_GPL \'; \
+ cat $(KERNEL_BUILD_DIR)/sym_exclude.txt | \
+ awk '{print "*(___ksymtab_gpl+" $$$$1 ") \\" }'; \
+ echo; \
+ ) > $$@
+
+ $(STAMP_CONFIGURED): $(STAMP_PREPARED) $(LINUX_KCONFIG_LIST) $(TOPDIR)/.config FORCE
+ $(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 $$@
+
+ mostlyclean: FORCE
+ $(Kernel/Clean)
+
+ define BuildKernel
+ endef
+
+ download: $(if $(LINUX_SITE),$(DL_DIR)/$(LINUX_SOURCE))
+ prepare: $(STAMP_CONFIGURED)
+ compile: $(LINUX_DIR)/.modules
+ $(MAKE) -C image compile TARGET_BUILD=
+
+ oldconfig menuconfig nconfig: $(STAMP_PREPARED) $(STAMP_CHECKED) FORCE
+ rm -f $(LINUX_DIR)/.config.prev
+ rm -f $(STAMP_CONFIGURED)
+ $(LINUX_RECONF_CMD) > $(LINUX_DIR)/.config
+ $(_SINGLE)$(MAKE) -C $(LINUX_DIR) $(KERNEL_MAKEOPTS) $$@
+ $(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)
-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=""' >> $(LINUX_DIR)/.config
-endif
+ image-prereq:
+ @+$(NO_TRACE_MAKE) -s -C image prereq TARGET_BUILD=
-$(LINUX_DIR)/vmlinux: $(LINUX_DIR)/.linux-compile pkg-install ramdisk-config
- $(MAKE) -C $(LINUX_DIR) CROSS_COMPILE="$(KERNEL_CROSS)" CC="$(KERNEL_CC)" ARCH=$(LINUX_KARCH) $(KERNELNAME)
-
-$(LINUX_KERNEL): $(LINUX_DIR)/vmlinux
- $(KERNEL_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="$(KERNEL_CROSS)" CC="$(KERNEL_CC)" ARCH=$(LINUX_KARCH) modules
- $(MAKE) -C "$(LINUX_DIR)" CROSS_COMPILE="$(KERNEL_CROSS)" CC="$(KERNEL_CC)" ARCH=$(LINUX_KARCH) DEPMOD=true INSTALL_MOD_PATH=$(KERNEL_BUILD_DIR)/modules modules_install
- touch $(LINUX_DIR)/.modules_done
-
-modules: $(LINUX_DIR)/.modules_done
-packages: $(TARGETS)
-
-$(LINUX_DIR)/.linux-compile:
- @rm -f $(BUILD_DIR)/linux
- ln -sf $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION) $(BUILD_DIR)/linux
- @$(MAKE) modules
- 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: $(TOPDIR)/target/linux/$(BOARD)-$(KERNEL)/Makefile
- echo "CONFIG_BOARD:=$(BOARD)" > $@
- echo "CONFIG_KERNEL:=$(KERNEL)" >> $@
- echo "CONFIG_LINUX_VERSION:=$(LINUX_VERSION)" >> $@
- echo "CONFIG_LINUX_RELEASE:=$(LINUX_RELEASE)" >> $@
- echo "CONFIG_LINUX_KARCH:=$(LINUX_KARCH)" >> $@
-
-pkg-install: FORCE
- @for pkg in $(INSTALL_TARGETS); do \
- $(IPKG) install $$pkg || echo; \
- done
-
-download: $(DL_DIR)/$(LINUX_SOURCE)
-prepare: $(LINUX_DIR)/.configured
- @mkdir -p $(LINUX_DIR) $(PACKAGE_DIR)
-
-compile: prepare $(LINUX_DIR)/.linux-compile
- @$(MAKE) packages
-
-install: compile $(LINUX_KERNEL)
-
-mostlyclean: FORCE
- rm -f $(LINUX_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)
+ prereq: image-prereq
+endef
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