-#
-# Copyright (C) 2006-2007 OpenWrt.org
+#
+# Copyright (C) 2006-2011 OpenWrt.org
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#
-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 $(LINUX_DIR) \
+ HOSTCFLAGS="$(HOST_CFLAGS) -Wall -Wmissing-prototypes -Wstrict-prototypes" \
CROSS_COMPILE="$(KERNEL_CROSS)" \
ARCH="$(LINUX_KARCH)" \
KBUILD_HAVE_NLS=no \
- CONFIG_SHELL="$(BASH)"
+ CONFIG_SHELL="$(BASH)" \
+ $(if $(findstring c,$(OPENWRT_VERBOSE)),V=1,V='')
+
+ifdef CONFIG_STRIP_KERNEL_EXPORTS
+ KERNEL_MAKEOPTS += \
+ EXTRA_LDSFLAGS="-I$(KERNEL_BUILD_DIR) -include symtab.h"
+endif
INITRAMFS_EXTRA_FILES ?= $(GENERIC_PLATFORM_DIR)/image/initramfs-base-files.txt
KERNEL_MAKEOPTS += CC="$(KERNEL_CC)"
endif
+ifdef CONFIG_USE_SPARSE
+ KERNEL_MAKEOPTS += C=1 CHECK=$(STAGING_DIR_HOST)/bin/sparse
+endif
+
+export HOST_EXTRACFLAGS=-I$(STAGING_DIR_HOST)/include
+
# defined in quilt.mk
Kernel/Patch:=$(Kernel/Patch/Default)
+
+KERNEL_GIT_OPTS:=
+ifneq ($(strip $(CONFIG_KERNEL_GIT_LOCAL_REPOSITORY)),"")
+ KERNEL_GIT_OPTS+=--reference $(CONFIG_KERNEL_GIT_LOCAL_REPOSITORY)
+endif
+
+ifneq ($(strip $(CONFIG_KERNEL_GIT_BRANCH)),"")
+ KERNEL_GIT_OPTS+=--branch $(CONFIG_KERNEL_GIT_BRANCH)
+endif
+
ifeq ($(strip $(CONFIG_EXTERNAL_KERNEL_TREE)),"")
-define Kernel/Prepare/Default
- bzcat $(DL_DIR)/$(LINUX_SOURCE) | $(TAR) -C $(KERNEL_BUILD_DIR) $(TAR_OPTIONS)
+ ifeq ($(strip $(CONFIG_KERNEL_GIT_CLONE_URI)),"")
+ define Kernel/Prepare/Default
+ xzcat $(DL_DIR)/$(LINUX_SOURCE) | $(TAR) -C $(KERNEL_BUILD_DIR) $(TAR_OPTIONS)
$(Kernel/Patch)
- $(if $(QUILT),touch $(LINUX_DIR)/.quilt_used)
-endef
+ touch $(LINUX_DIR)/.quilt_used
+ endef
+ else
+ define Kernel/Prepare/Default
+ git clone $(KERNEL_GIT_OPTS) $(CONFIG_KERNEL_GIT_CLONE_URI) $(LINUX_DIR)
+ endef
+ endif
else
-define Kernel/Prepare/Default
+ define Kernel/Prepare/Default
mkdir -p $(KERNEL_BUILD_DIR)
if [ -d $(LINUX_DIR) ]; then \
rmdir $(LINUX_DIR); \
fi
ln -s $(CONFIG_EXTERNAL_KERNEL_TREE) $(LINUX_DIR)
-endef
+ endef
endif
-ifeq ($(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 > $(LINUX_DIR)/.config
- echo 'CONFIG_INITRAMFS_SOURCE="$(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)' >> $(LINUX_DIR)/.config
+ifeq ($(CONFIG_TARGET_ROOTFS_INITRAMFS),y)
+ ifeq ($(strip $(CONFIG_EXTERNAL_CPIO)),"")
+ define Kernel/SetInitramfs/PreConfigure
+ 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
endef
else
- 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=""' >> $(LINUX_DIR)/.config
+ define Kernel/SetInitramfs/PreConfigure
+ grep -v INITRAMFS $(LINUX_DIR)/.config.old > $(LINUX_DIR)/.config
+ echo 'CONFIG_INITRAMFS_SOURCE="$(call qstrip,$(CONFIG_EXTERNAL_CPIO))"' >> $(LINUX_DIR)/.config
endef
endif
+
+ define Kernel/SetInitramfs
+ mv $(LINUX_DIR)/.config $(LINUX_DIR)/.config.old
+ $(call Kernel/SetInitramfs/PreConfigure)
+ echo 'CONFIG_INITRAMFS_ROOT_UID=$(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)" >> $(LINUX_DIR)/.config
+ echo -e "$(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_XZ),CONFIG_INITRAMFS_COMPRESSION_XZ=y\nCONFIG_RD_XZ=y,# CONFIG_INITRAMFS_COMPRESSION_XZ is not set\n# CONFIG_RD_XZ is not set)" >> $(LINUX_DIR)/.config
+ echo -e "$(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_LZ4),CONFIG_INITRAMFS_COMPRESSION_LZ4=y\nCONFIG_RD_LZ4=y,# CONFIG_INITRAMFS_COMPRESSION_LZ4 is not set\n# CONFIG_RD_LZ4 is not set)" >> $(LINUX_DIR)/.config
+ endef
+else
endif
-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
+define Kernel/SetNoInitramfs
+ mv $(LINUX_DIR)/.config $(LINUX_DIR)/.config.old
+ grep -v INITRAMFS $(LINUX_DIR)/.config.old > $(LINUX_DIR)/.config
+ echo 'CONFIG_INITRAMFS_SOURCE=""' >> $(LINUX_DIR)/.config
endef
+
define Kernel/Configure/Default
- $(LINUX_CONFCMD) > $(LINUX_DIR)/.config.target
+ $(LINUX_CONF_CMD) > $(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_KALLSYMS_UNCOMPRESSED is not set" >> $(LINUX_DIR)/.config.target
+ echo "# CONFIG_KPROBES 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 $(LINUX_DIR)/.config.override > $(LINUX_DIR)/.config
- $(call Kernel/SetInitramfs)
- $(call Kernel/Configure/$(KERNEL))
+ $(SCRIPT_DIR)/kconfig.pl 'm+' '+' $(LINUX_DIR)/.config.target /dev/null $(LINUX_DIR)/.config.override > $(LINUX_DIR)/.config
+ $(call Kernel/SetNoInitramfs)
rm -rf $(KERNEL_BUILD_DIR)/modules
+ $(_SINGLE) [ -d $(LINUX_DIR)/user_headers ] || $(MAKE) $(KERNEL_MAKEOPTS) INSTALL_HDR_PATH=$(LINUX_DIR)/user_headers headers_install
+ $(SH_FUNC) grep '=[ym]' $(LINUX_DIR)/.config | LC_ALL=C sort | md5s > $(LINUX_DIR)/.vermagic
+endef
+
+define Kernel/Configure/Initramfs
+ $(call Kernel/SetInitramfs)
endef
define Kernel/CompileModules/Default
rm -f $(LINUX_DIR)/vmlinux $(LINUX_DIR)/System.map
- $(MAKE) $(KERNEL_MAKEOPTS) modules
+ +$(MAKE) $(KERNEL_MAKEOPTS) modules
+endef
+
+OBJCOPY_STRIP = -R .reginfo -R .notes -R .note -R .comment -R .mdebug -R .note.gnu.build-id
+
+# AVR32 uses a non-standard location
+ifeq ($(LINUX_KARCH),avr32)
+IMAGES_DIR:=images
+endif
+
+# AMD64 shares the location with x86
+ifeq ($(LINUX_KARCH),x86_64)
+IMAGES_DIR:=../../x86/boot
+endif
+
+define Kernel/CopyImage
+ $(KERNEL_CROSS)objcopy -O binary $(OBJCOPY_STRIP) -S $(LINUX_DIR)/vmlinux $(LINUX_KERNEL)$(1)
+ $(KERNEL_CROSS)objcopy $(OBJCOPY_STRIP) -S $(LINUX_DIR)/vmlinux $(KERNEL_BUILD_DIR)/vmlinux$(1).elf
+ifneq ($(subst ",,$(KERNELNAME)),)
+ #")
+ $(foreach k,$(filter-out dtbs,$(subst ",,$(KERNELNAME))),$(CP) $(LINUX_DIR)/arch/$(LINUX_KARCH)/boot/$(IMAGES_DIR)/$(k) $(KERNEL_BUILD_DIR)/$(k)$(1);)
+ #")
+endif
endef
define Kernel/CompileImage/Default
- $(if $(CONFIG_TARGET_ROOTFS_INITRAMFS),,rm -f $(TARGET_DIR)/init)
- $(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
+ rm -f $(TARGET_DIR)/init
+ +$(MAKE) $(KERNEL_MAKEOPTS) $(subst ",,$(KERNELNAME))
+ #")
+ $(call Kernel/CopyImage)
endef
+ifneq ($(CONFIG_TARGET_ROOTFS_INITRAMFS),)
+define Kernel/CompileImage/Initramfs
+ $(call Kernel/Configure/Initramfs)
+ $(CP) $(GENERIC_PLATFORM_DIR)/base-files/init $(TARGET_DIR)/init
+ rm -rf $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION)/usr/initramfs_data.cpio*
+ +$(MAKE) $(KERNEL_MAKEOPTS) $(subst ",,$(KERNELNAME))
+ #")
+ #")
+ $(call Kernel/CopyImage,-initramfs)
+endef
+else
+define Kernel/CompileImage/Initramfs
+endef
+endif
+
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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