-#
-# 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.
#
-KERNEL_BUILD:=1
-
include $(INCLUDE_DIR)/host.mk
-include $(INCLUDE_DIR)/kernel.mk
-
-LINUX_SOURCE:=linux-$(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)
-
-LINUX_CONFIG:=./config
-
-ifneq (,$(findstring uml,$(BOARD)))
- LINUX_KARCH:=um
-else
- 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/' \
- )
-endif
+include $(INCLUDE_DIR)/prereq.mk
-KERNELNAME=
-ifneq (,$(findstring x86,$(BOARD)))
- KERNELNAME="bzImage"
-endif
-ifneq (,$(findstring ppc,$(BOARD)))
- KERNELNAME="uImage"
+ifneq ($(DUMP),1)
+ all: compile
endif
+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
-define Kernel/Prepare/Default
- bzcat $(DL_DIR)/$(LINUX_SOURCE) | tar -C $(KERNEL_BUILD_DIR) $(TAR_OPTIONS)
- [ -d ../generic-$(KERNEL)/patches ] && $(PATCH) $(LINUX_DIR) ../generic-$(KERNEL)/patches
- [ -d ./patches ] && $(PATCH) $(LINUX_DIR) ./patches
-endef
define Kernel/Prepare
$(call Kernel/Prepare/Default)
endef
-
-define Kernel/Configure/2.4
- $(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
- $(MAKE) -C $(LINUX_DIR) CROSS_COMPILE="$(KERNEL_CROSS)" ARCH=$(LINUX_KARCH) dep
-endef
-define Kernel/Configure/2.6
- $(MAKE) -C $(LINUX_DIR) CROSS_COMPILE="$(KERNEL_CROSS)" CC="$(KERNEL_CC)" ARCH=$(LINUX_KARCH) oldconfig prepare scripts
-endef
-define Kernel/Configure/Default
- @$(CP) $(LINUX_CONFIG) $(LINUX_DIR)/.config
- $(call Kernel/Configure/$(KERNEL))
-endef
define Kernel/Configure
$(call Kernel/Configure/Default)
endef
-
-define Kernel/CompileModules/Default
- $(MAKE) -j$(CONFIG_JLEVEL) -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
-endef
define Kernel/CompileModules
$(call Kernel/CompileModules/Default)
endef
-
-ifeq ($(KERNEL),2.6)
- ifeq ($(CONFIG_TARGET_ROOTFS_INITRAMFS),y)
- define Kernel/SetInitramfs
- mv $(LINUX_DIR)/.config $(LINUX_DIR)/.config.old
- grep -v INITRAMFS $(LINUX_DIR)/.config.old > $(LINUX_DIR)/.config
- 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/
- endef
- else
- define Kernel/SetInitramfs
- mv $(LINUX_DIR)/.config $(LINUX_DIR)/.config.old
- grep -v INITRAMFS $(LINUX_DIR)/.config.old > $(LINUX_DIR)/.config
- rm -f $(BUILD_DIR)/root/init $(BUILD_DIR)/root/etc/init.d/S00initramfs
- echo 'CONFIG_INITRAMFS_SOURCE=""' >> $(LINUX_DIR)/.config
- endef
- endif
-endif
-define Kernel/CompileImage/Default
- $(call Kernel/SetInitramfs)
- $(MAKE) -j$(CONFIG_JLEVEL) -C $(LINUX_DIR) CROSS_COMPILE="$(KERNEL_CROSS)" CC="$(KERNEL_CC)" ARCH=$(LINUX_KARCH) $(KERNELNAME)
- $(KERNEL_CROSS)objcopy -O binary -R .reginfo -R .note -R .comment -R .mdebug -S $(LINUX_DIR)/vmlinux $(LINUX_KERNEL)
-endef
define Kernel/CompileImage
$(call Kernel/CompileImage/Default)
endef
-define Kernel/Clean/Default
- rm -f $(LINUX_DIR)/.linux-compile
- rm -f $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION)/.configured
- rm -f $(LINUX_KERNEL)
- $(MAKE) -C $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION) clean
-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 | bzip2 -c -9 > $(BIN_DIR)/kernel-debug.tar.bz2
+ endef
+endif
+
define BuildKernel
- ifneq ($(LINUX_SITE),)
- $(DL_DIR)/$(LINUX_SOURCE):
- -mkdir -p $(DL_DIR)
- $(SCRIPT_DIR)/download.pl $(DL_DIR) $(LINUX_SOURCE) $(LINUX_KERNEL_MD5SUM) $(LINUX_SITE)
- endif
+ $(if $(QUILT),$(Build/Quilt))
+ $(if $(LINUX_SITE),$(call Download,kernel))
- $(LINUX_DIR)/.prepared: $(DL_DIR)/$(LINUX_SOURCE)
+ $(STAMP_PREPARED): $(DL_DIR)/$(LINUX_SOURCE)
-rm -rf $(KERNEL_BUILD_DIR)
-mkdir -p $(KERNEL_BUILD_DIR)
- $(call Kernel/Prepare)
+ $(Kernel/Prepare)
touch $$@
- $(LINUX_DIR)/.configured: $(LINUX_DIR)/.prepared $(LINUX_CONFIG)
- $(call Kernel/Configure)
+ $(KERNEL_BUILD_DIR)/symtab.txt: FORCE
+ find $(LINUX_DIR) $(STAGING_DIR_ROOT)/lib/modules -name \*.ko | \
+ xargs $(TARGET_CROSS)nm | \
+ awk '$$$$1 == "U" { print $$$$2 } ' | \
+ sort -u > $$@
+
+ $(KERNEL_BUILD_DIR)/symtab.h: $(KERNEL_BUILD_DIR)/symtab.txt
+ ( \
+ echo '#define SYMTAB_KEEP \'; \
+ cat $(KERNEL_BUILD_DIR)/symtab.txt | \
+ awk '{print "*(__ksymtab." $$$$1 ") \\" }'; \
+ echo; \
+ echo '#define SYMTAB_KEEP_GPL \'; \
+ cat $(KERNEL_BUILD_DIR)/symtab.txt | \
+ awk '{print "*(__ksymtab_gpl." $$$$1 ") \\" }'; \
+ echo; \
+ echo '#define SYMTAB_KEEP_STR \'; \
+ cat $(KERNEL_BUILD_DIR)/symtab.txt | \
+ awk '{print "*(__ksymtab_strings." $$$$1 ") \\" }'; \
+ echo; \
+ ) > $$@
+
+ $(STAMP_CONFIGURED): $(STAMP_PREPARED) $(LINUX_KCONFIG_LIST) $(TOPDIR)/.config
+ $(Kernel/Configure)
touch $$@
- $(LINUX_DIR)/.modules: $(LINUX_DIR)/.configured
- rm -rf $(KERNEL_BUILD_DIR)/modules
- @rm -f $(BUILD_DIR)/linux
- ln -sf $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION) $(BUILD_DIR)/linux
- $(call Kernel/CompileModules)
+ $(LINUX_DIR)/.modules: $(STAMP_CONFIGURED) $(LINUX_DIR)/.config FORCE
+ $(Kernel/CompileModules)
touch $$@
- $(LINUX_DIR)/.image: $(LINUX_DIR)/.configured FORCE
- $(call Kernel/CompileImage)
+ $(LINUX_DIR)/.image: $(STAMP_CONFIGURED) $(if $(CONFIG_STRIP_KERNEL_EXPORTS),$(KERNEL_BUILD_DIR)/symtab.h) FORCE
+ $(Kernel/CompileImage)
+ $(Kernel/CollectDebug)
touch $$@
mostlyclean: FORCE
- $(call Kernel/Clean)
+ $(Kernel/Clean)
define BuildKernel
endef
-endef
+ download: $(DL_DIR)/$(LINUX_SOURCE)
+ prepare: $(STAMP_CONFIGURED)
+ compile: $(LINUX_DIR)/.modules
+ $(MAKE) -C image compile TARGET_BUILD=
-download: $(DL_DIR)/$(LINUX_SOURCE)
-prepare: $(LINUX_DIR)/.configured $(TOPDIR)/.kernel.mk
-compile: $(LINUX_DIR)/.modules
-install: $(LINUX_DIR)/.image
+ oldconfig menuconfig nconfig: $(STAMP_PREPARED) $(STAMP_CHECKED) FORCE
+ rm -f $(STAMP_CONFIGURED)
+ $(LINUX_RECONF_CMD) > $(LINUX_DIR)/.config
+ $(_SINGLE)$(MAKE) -C $(LINUX_DIR) $(KERNEL_MAKEOPTS) $$@
+ $(LINUX_RECONF_DIFF) $(LINUX_DIR)/.config > $(LINUX_RECONFIG_TARGET)
-clean: FORCE
- rm -f $(STAMP_DIR)/.linux-compile
- rm -rf $(KERNEL_BUILD_DIR)
+ install: $(LINUX_DIR)/.image
+ +$(MAKE) -C image compile install TARGET_BUILD=
-rebuild: FORCE
- @$(MAKE) mostlyclean
- @if [ -f $(LINUX_KERNEL) ]; then \
- $(MAKE) clean; \
- fi
- @$(MAKE) compile
+ clean: FORCE
+ rm -rf $(KERNEL_BUILD_DIR)
-$(TOPDIR)/.kernel.mk: 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)" >> $@
+ image-prereq:
+ @+$(NO_TRACE_MAKE) -s -C image prereq TARGET_BUILD=
+ prereq: image-prereq
+endef
projects / openwrt.git / blobdiff