-#
+#
# Copyright (C) 2006-2007 OpenWrt.org
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#
-# default device type
-DEVICE_TYPE?=router
-
-# Default packages - the really basic set
-DEFAULT_PACKAGES:=base-files libgcc uclibc busybox dropbear mtd mtd
-# For router targets
-DEFAULT_PACKAGES.router:=dnsmasq iptables ppp ppp-mod-pppoe iptables kmod-ipt-nathelper bridge
-
-# Additional packages for Linux 2.6
-ifneq ($(KERNEL),2.4)
- DEFAULT_PACKAGES += udevtrigger hotplug2
-endif
-
-# Add device specific packages
-DEFAULT_PACKAGES += $(DEFAULT_PACKAGES.$(DEVICE_TYPE))
-
KERNELNAME=
-ifneq (,$(findstring x86,$(BOARD)))
- KERNELNAME="bzImage"
-endif
-ifneq (,$(findstring rdc,$(BOARD)))
- KERNELNAME="bzImage"
-endif
-ifneq (,$(findstring ppc,$(BOARD)))
- KERNELNAME="uImage"
-endif
-ifneq (,$(findstring avr32,$(BOARD)))
- KERNELNAME="uImage"
-endif
KERNEL_MAKEOPTS := -C $(LINUX_DIR) \
CROSS_COMPILE="$(KERNEL_CROSS)" \
ARCH="$(LINUX_KARCH)" \
+ KBUILD_HAVE_NLS=no \
CONFIG_SHELL="$(BASH)"
+ifdef CONFIG_STRIP_KERNEL_EXPORTS
+ KERNEL_MAKEOPTS += \
+ EXTRA_LDSFLAGS="-I$(KERNEL_BUILD_DIR) -include symtab.h"
+endif
+
INITRAMFS_EXTRA_FILES ?= $(GENERIC_PLATFORM_DIR)/image/initramfs-base-files.txt
ifneq (,$(KERNEL_CC))
# defined in quilt.mk
Kernel/Patch:=$(Kernel/Patch/Default)
-define Kernel/Prepare/Default
+ifeq ($(strip $(CONFIG_EXTERNAL_KERNEL_TREE)),"")
+ ifeq ($(strip $(CONFIG_KERNEL_GIT_CLONE_URI)),"")
+ define Kernel/Prepare/Default
bzcat $(DL_DIR)/$(LINUX_SOURCE) | $(TAR) -C $(KERNEL_BUILD_DIR) $(TAR_OPTIONS)
$(Kernel/Patch)
- $(if $(QUILT),touch $(LINUX_DIR)/.quilt_used)
-endef
-
-define Kernel/Configure/2.4
- $(SED) "s,\-mcpu=,\-mtune=,g;" $(LINUX_DIR)/arch/mips/Makefile
- $(MAKE) $(KERNEL_MAKEOPTS) oldconfig include/linux/compile.h include/linux/version.h
- $(MAKE) $(KERNEL_MAKEOPTS) dep
-endef
-define Kernel/Configure/2.6
- -$(MAKE) $(KERNEL_MAKEOPTS) oldconfig prepare scripts
-endef
-define Kernel/Configure/Default
- $(LINUX_CONFCMD) > $(LINUX_DIR)/.config.target
- $(SCRIPT_DIR)/metadata.pl kconfig $(TMP_DIR)/.packageinfo $(TOPDIR)/.config > $(LINUX_DIR)/.config.override
- $(SCRIPT_DIR)/kconfig.pl 'm+' $(LINUX_DIR)/.config.target $(LINUX_DIR)/.config.override > $(LINUX_DIR)/.config
- $(call Kernel/Configure/$(KERNEL))
- rm -rf $(KERNEL_BUILD_DIR)/modules
-endef
-
-define Kernel/CompileModules/Default
- rm -f $(LINUX_DIR)/vmlinux $(LINUX_DIR)/System.map
- $(MAKE) $(KERNEL_MAKEOPTS) modules
-endef
+ touch $(LINUX_DIR)/.quilt_used
+ endef
+ else
+ ifeq ($(strip $(CONFIG_KERNEL_GIT_LOCAL_REPOSITORY)),"")
+define Kernel/Prepare/Default
+ git clone $(CONFIG_KERNEL_GIT_CLONE_URI) $(LINUX_DIR)
+ endef
+ else
+ define Kernel/Prepare/Default
+ git clone --reference $(CONFIG_KERNEL_GIT_LOCAL_REPOSITORY) $(CONFIG_KERNEL_GIT_CLONE_URI) $(LINUX_DIR)
+ endef
+ endif
+endif
+else
+ define Kernel/Prepare/Default
+ mkdir -p $(KERNEL_BUILD_DIR)
+ if [ -d $(LINUX_DIR) ]; then \
+ rmdir $(LINUX_DIR); \
+ fi
+ ln -s $(CONFIG_EXTERNAL_KERNEL_TREE) $(LINUX_DIR)
+ endef
+endif
-ifeq ($(KERNEL),2.6)
- ifeq ($(CONFIG_TARGET_ROOTFS_INITRAMFS),y)
+ifeq ($(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
+ grep -v -e INITRAMFS -e CONFIG_RD_ -e CONFIG_BLK_DEV_INITRD $(LINUX_DIR)/.config.old > $(LINUX_DIR)/.config
+ echo 'CONFIG_BLK_DEV_INITRD=y' >> $(LINUX_DIR)/.config
echo 'CONFIG_INITRAMFS_SOURCE="$(strip $(TARGET_DIR) $(INITRAMFS_EXTRA_FILES))"' >> $(LINUX_DIR)/.config
echo 'CONFIG_INITRAMFS_ROOT_UID=$(shell id -u)' >> $(LINUX_DIR)/.config
echo 'CONFIG_INITRAMFS_ROOT_GID=$(shell id -g)' >> $(LINUX_DIR)/.config
+ echo "$(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_NONE),CONFIG_INITRAMFS_COMPRESSION_NONE=y,# CONFIG_INITRAMFS_COMPRESSION_NONE is not set)" >> $(LINUX_DIR)/.config
+ echo -e "$(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_GZIP),CONFIG_INITRAMFS_COMPRESSION_GZIP=y\nCONFIG_RD_GZIP=y,# CONFIG_INITRAMFS_COMPRESSION_GZIP is not set\n# CONFIG_RD_GZIP is not set)" >> $(LINUX_DIR)/.config
+ echo -e "$(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_BZIP2),CONFIG_INITRAMFS_COMPRESSION_BZIP2=y\nCONFIG_RD_BZIP2=y,# CONFIG_INITRAMFS_COMPRESSION_BZIP2 is not set\n# CONFIG_RD_BZIP2 is not set)" >> $(LINUX_DIR)/.config
+ echo -e "$(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_LZMA),CONFIG_INITRAMFS_COMPRESSION_LZMA=y\nCONFIG_RD_LZMA=y,# CONFIG_INITRAMFS_COMPRESSION_LZMA is not set\n# CONFIG_RD_LZMA is not set)" >> $(LINUX_DIR)/.config
+ echo -e "$(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_LZO),CONFIG_INITRAMFS_COMPRESSION_LZO=y\nCONFIG_RD_LZO=y,# CONFIG_INITRAMFS_COMPRESSION_LZO is not set\n# CONFIG_RD_LZO is not set)" >> $(LINUX_DIR)/.config
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 $(TARGET_DIR)/init
echo 'CONFIG_INITRAMFS_SOURCE=""' >> $(LINUX_DIR)/.config
endef
- endif
endif
-define Kernel/CompileImage/Default
+
+define Kernel/Configure/Default
+ $(LINUX_CONFCMD) > $(LINUX_DIR)/.config.target
+# copy CONFIG_KERNEL_* settings over to .config.target
+ awk '/^(#[[:space:]]+)?CONFIG_KERNEL/{sub("CONFIG_KERNEL_","CONFIG_");print}' $(TOPDIR)/.config >> $(LINUX_DIR)/.config.target
+ echo "# CONFIG_KALLSYMS_EXTRA_PASS is not set" >> $(LINUX_DIR)/.config.target
+ echo "# CONFIG_KALLSYMS_ALL is not set" >> $(LINUX_DIR)/.config.target
+ echo "# CONFIG_KPROBES is not set" >> $(LINUX_DIR)/.config.target
+ $(SED) 's,.*CONFIG_AEABI.*,$(if $(CONFIG_EABI_SUPPORT),CONFIG_AEABI=y,# CONFIG_AEABI is not set),' $(LINUX_DIR)/.config.target
+ $(if $(CONFIG_EABI_SUPPORT),echo '# CONFIG_OABI_COMPAT is not set' >> $(LINUX_DIR)/.config.target)
+ $(SCRIPT_DIR)/metadata.pl kconfig $(TMP_DIR)/.packageinfo $(TOPDIR)/.config > $(LINUX_DIR)/.config.override
+ $(SCRIPT_DIR)/kconfig.pl 'm+' '+' $(LINUX_DIR)/.config.target /dev/null $(LINUX_DIR)/.config.override > $(LINUX_DIR)/.config
$(call Kernel/SetInitramfs)
- $(MAKE) $(KERNEL_MAKEOPTS) $(KERNELNAME)
- $(KERNEL_CROSS)objcopy -O binary -R .reginfo -R .note -R .comment -R .mdebug -S $(LINUX_DIR)/vmlinux $(LINUX_KERNEL)
- $(KERNEL_CROSS)objcopy -R .reginfo -R .note -R .comment -R .mdebug -S $(LINUX_DIR)/vmlinux $(KERNEL_BUILD_DIR)/vmlinux.elf
+ -$(_SINGLE)$(MAKE) $(KERNEL_MAKEOPTS) oldconfig prepare scripts
+ rm -rf $(KERNEL_BUILD_DIR)/modules
+endef
+
+define Kernel/CompileModules/Default
+ rm -f $(LINUX_DIR)/vmlinux $(LINUX_DIR)/System.map
+ +$(MAKE) $(KERNEL_MAKEOPTS) modules
+endef
+
+OBJCOPY_STRIP = -R .reginfo -R .notes -R .note -R .comment -R .mdebug -R .note.gnu.build-id
+
+define Kernel/CompileImage/Default
+ $(if $(CONFIG_TARGET_ROOTFS_INITRAMFS),,rm -f $(TARGET_DIR)/init)
+ +$(MAKE) $(KERNEL_MAKEOPTS) $(KERNELNAME)
+ $(KERNEL_CROSS)objcopy -O binary $(OBJCOPY_STRIP) -S $(LINUX_DIR)/vmlinux $(LINUX_KERNEL)
+ $(KERNEL_CROSS)objcopy $(OBJCOPY_STRIP) -S $(LINUX_DIR)/vmlinux $(KERNEL_BUILD_DIR)/vmlinux.elf
endef
define Kernel/Clean/Default
rm -f $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION)/.configured
rm -f $(LINUX_KERNEL)
- $(MAKE) -C $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION) clean
+ $(_SINGLE)$(MAKE) -C $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION) clean
endef
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