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-rw-r--r--include/kernel-build.mk145
1 files changed, 145 insertions, 0 deletions
diff --git a/include/kernel-build.mk b/include/kernel-build.mk
new file mode 100644
index 0000000000..5544a82e37
--- /dev/null
+++ b/include/kernel-build.mk
@@ -0,0 +1,145 @@
+#
+# Copyright (C) 2006 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 += $(KERNEL_IPKG)
+
+LINUX_KARCH:=$(shell echo $(ARCH) | sed -e 's/i[3-9]86/i386/' \
+ -e 's/mipsel/mips/' \
+ -e 's/mipseb/mips/' \
+ -e 's/powerpc/ppc/' \
+ -e 's/sh[234]/sh/' \
+ -e 's/armeb/arm/' \
+)
+
+
+$(TARGETS): $(PACKAGE_DIR)
+
+$(PACKAGE_DIR):
+ mkdir -p $@
+
+$(DL_DIR)/$(LINUX_SOURCE):
+ -mkdir -p $(DL_DIR)
+ $(SCRIPT_DIR)/download.pl $(DL_DIR) $(LINUX_SOURCE) $(LINUX_KERNEL_MD5SUM) $(LINUX_SITE)
+
+$(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,\-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
+
+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=""' >> $(LINUX_DIR)/.config
+endif
+
+$(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)
+