-#
-# Copyright (C) 2006-2007 OpenWrt.org
+#
+# Copyright (C) 2006-2015 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"
+ifneq ($(SOURCE_DATE_EPOCH),)
+ ifndef DUMP
+ KBUILD_BUILD_TIMESTAMP:=$(shell perl -e 'print scalar gmtime($(SOURCE_DATE_EPOCH))')
+ endif
endif
KERNEL_MAKEOPTS := -C $(LINUX_DIR) \
+ HOSTCFLAGS="$(HOST_CFLAGS) -Wall -Wmissing-prototypes -Wstrict-prototypes" \
CROSS_COMPILE="$(KERNEL_CROSS)" \
ARCH="$(LINUX_KARCH)" \
- CONFIG_SHELL="$(BASH)"
+ KBUILD_HAVE_NLS=no \
+ KBUILD_BUILD_USER="$(call qstrip,$(CONFIG_KERNEL_BUILD_USER))" \
+ KBUILD_BUILD_HOST="$(call qstrip,$(CONFIG_KERNEL_BUILD_DOMAIN))" \
+ KBUILD_BUILD_TIMESTAMP="$(KBUILD_BUILD_TIMESTAMP)" \
+ KBUILD_BUILD_VERSION="0" \
+ HOST_LOADLIBES="-L$(STAGING_DIR_HOST)/lib" \
+ CONFIG_SHELL="$(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
+
+ifneq ($(strip $(CONFIG_KERNEL_GIT_CLONE_URI)),"")
+ KERNEL_MAKEOPTS += LOCALVERSION=
+endif
+
+export HOST_EXTRACFLAGS=-I$(STAGING_DIR_HOST)/include
+
# defined in quilt.mk
Kernel/Patch:=$(Kernel/Patch/Default)
-define Kernel/Prepare/Default
- bzcat $(DL_DIR)/$(LINUX_SOURCE) | $(TAR) -C $(KERNEL_BUILD_DIR) $(TAR_OPTIONS)
+
+ifeq ($(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)
$(if $(QUILT),touch $(LINUX_DIR)/.quilt_used)
-endef
+ endef
+ else
+ define Kernel/Prepare/Default
+ xzcat $(DL_DIR)/$(LINUX_SOURCE) | $(TAR) -C $(KERNEL_BUILD_DIR) $(TAR_OPTIONS)
+ 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
-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) $(KERNEL_MAKEOPTS) oldconfig prepare scripts
+ifeq ($(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
+ rm -f $(LINUX_DIR)/.config.prev
+ 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.set $(LINUX_DIR)/.config.old
+ grep -v INITRAMFS $(LINUX_DIR)/.config.old > $(LINUX_DIR)/.config.set
+ echo 'CONFIG_INITRAMFS_SOURCE=""' >> $(LINUX_DIR)/.config.set
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 -f $(LINUX_DIR)/localversion
+ $(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=y" >> $(LINUX_DIR)/.config.target
+ $(SCRIPT_DIR)/package-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.set
+ $(call Kernel/SetNoInitramfs)
rm -rf $(KERNEL_BUILD_DIR)/modules
+ cmp -s $(LINUX_DIR)/.config.set $(LINUX_DIR)/.config.prev || { \
+ cp $(LINUX_DIR)/.config.set $(LINUX_DIR)/.config; \
+ cp $(LINUX_DIR)/.config.set $(LINUX_DIR)/.config.prev; \
+ }
+ $(_SINGLE) [ -d $(LINUX_DIR)/user_headers ] || $(MAKE) $(KERNEL_MAKEOPTS) INSTALL_HDR_PATH=$(LINUX_DIR)/user_headers headers_install
+ grep '=[ym]' $(LINUX_DIR)/.config.set | LC_ALL=C sort | mkhash md5 > $(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) $(KERNEL_MAKEOPTS) modules
endef
-ifeq ($(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 > $(LINUX_DIR)/.config
- echo 'CONFIG_INITRAMFS_SOURCE="$(TARGET_DIR)"' >> $(LINUX_DIR)/.config
- echo 'CONFIG_INITRAMFS_ROOT_UID=$(shell id -u)' >> $(LINUX_DIR)/.config
- echo 'CONFIG_INITRAMFS_ROOT_GID=$(shell id -g)' >> $(LINUX_DIR)/.config
- 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=""' >> $(LINUX_DIR)/.config
- endef
- endif
+OBJCOPY_STRIP = -R .reginfo -R .notes -R .note -R .comment -R .mdebug -R .note.gnu.build-id
+
+# AMD64 shares the location with x86
+ifeq ($(LINUX_KARCH),x86_64)
+IMAGES_DIR:=../../x86/boot
endif
+
+define Kernel/CopyImage
+ cmp -s $(LINUX_DIR)/vmlinux $(KERNEL_BUILD_DIR)/vmlinux$(1).debug || { \
+ $(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 $(KERNEL_BUILD_DIR)/vmlinux$(1).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
- $(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
+ 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)/other-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)
- $(MAKE) -C $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION) clean
+ $(_SINGLE)$(MAKE) -C $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION) clean
endef
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