diff options
Diffstat (limited to 'include/kernel-defaults.mk')
| -rw-r--r-- | include/kernel-defaults.mk | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/include/kernel-defaults.mk b/include/kernel-defaults.mk new file mode 100644 index 0000000..d37787a --- /dev/null +++ b/include/kernel-defaults.mk @@ -0,0 +1,170 @@ +# +# Copyright (C) 2006-2015 OpenWrt.org +# +# This is free software, licensed under the GNU General Public License v2. +# See /LICENSE for more information. +# + +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)" \ + $(if $(findstring c,$(OPENWRT_VERBOSE)),V=1,V='') \ + $(if $(PKG_BUILD_ID),LDFLAGS_MODULE=--build-id=0x$(PKG_BUILD_ID)) + +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)) + 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 $(CONFIG_EXTERNAL_KERNEL_TREE)),"") + ifeq ($(strip $(CONFIG_KERNEL_GIT_CLONE_URI)),"") + define Kernel/Prepare/Default + xzcat $(DL_DIR)/$(LINUX_SOURCE) | $(TAR) -C $(KERNEL_BUILD_DIR) $(TAR_OPTIONS) + $(Kernel/Patch) + 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 + mkdir -p $(KERNEL_BUILD_DIR) + if [ -d $(LINUX_DIR) ]; then \ + rmdir $(LINUX_DIR); \ + fi + ln -s $(CONFIG_EXTERNAL_KERNEL_TREE) $(LINUX_DIR) + endef +endif + +ifeq ($(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/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/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_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 + $(SCRIPT_DIR)/metadata.pl kconfig $(TMP_DIR)/.packageinfo $(TOPDIR)/.config $(KERNEL_PATCHVER) > $(LINUX_DIR)/.config.override + $(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) $(KERNEL_MAKEOPTS) modules +endef + +OBJCOPY_STRIP = -R .reginfo -R .notes -R .note -R .comment -R .mdebug -R .note.gnu.build-id + +# AMD64 shares the location with x86 +ifeq ($(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 + $(CP) $(LINUX_DIR)/vmlinux $(KERNEL_BUILD_DIR)/vmlinux.debug + $(foreach k, \ + $(if $(KERNEL_IMAGES),$(KERNEL_IMAGES),$(filter-out dtbs,$(KERNELNAME))), \ + $(CP) $(LINUX_DIR)/arch/$(LINUX_KARCH)/boot/$(IMAGES_DIR)/$(k) $(KERNEL_BUILD_DIR)/$(k)$(1); \ + ) +endef + +define Kernel/CompileImage/Default + rm -f $(TARGET_DIR)/init + +$(MAKE) $(KERNEL_MAKEOPTS) $(if $(KERNELNAME),$(KERNELNAME),all) modules + $(call Kernel/CopyImage) +endef + +ifneq ($(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) $(if $(KERNELNAME),$(KERNELNAME),all) modules + $(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) + $(_SINGLE)$(MAKE) -C $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION) clean +endef + + |