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https://github.com/Telecominfraproject/OpenNetworkLinux.git
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819f4ad3f7
Kernel modules can now be selected from the base kernel package via the kernel config. The modules will be built and installed into the existing -modules packages. Module management tools like modprobe will now work properly. This enables individual module selection for
212 lines
5.2 KiB
Makefile
212 lines
5.2 KiB
Makefile
############################################################
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# <bsn.cl fy=2015 v=onl>
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#
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# Copyright 2015 Big Switch Networks, Inc.
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#
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# Licensed under the Eclipse Public License, Version 1.0 (the
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# "License"); you may not use this file except in compliance
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# with the License. You may obtain a copy of the License at
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#
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# http://www.eclipse.org/legal/epl-v10.html
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#
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# Unless required by applicable law or agreed to in writing,
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# software distributed under the License is distributed on an
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
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# either express or implied. See the License for the specific
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# language governing permissions and limitations under the
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# License.
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#
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# </bsn.cl>
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############################################################
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#
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# Prepare and build a kernel.
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#
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############################################################
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ifndef ARCH
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$(error $$ARCH must be set)
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endif
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#
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# The kernel major version
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#
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ifndef K_MAJOR_VERSION
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$(error $$K_MAJOR_VERSION must be set)
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endif
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#
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# The kernel patchlevel.
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#
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ifndef K_PATCH_LEVEL
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$(error $$K_PATCH_LEVEL must be set)
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endif
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#
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# The kernel sublevel
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#
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ifndef K_SUB_LEVEL
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$(error $$K_SUB_LEVEL must be set)
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endif
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#
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# The directory containing the patches to be applied
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# to the kernel sources.
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#
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ifndef K_PATCH_DIR
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$(error $$K_PATCH_DIR must be set)
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endif
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ifndef K_PATCH_SERIES_FILE
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ifndef K_PATCH_SERIES
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K_PATCH_SERIES = series
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endif
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K_PATCH_SERIES_FILE = $(K_PATCH_DIR)/$(K_PATCH_SERIES)
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endif
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#
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# This is the directory that will receive the build targets.
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# The kernel build tree is placed in this directory,
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# as well as any custom copy targets.
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#
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ifndef K_TARGET_DIR
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$(error $$K_TARGET_DIR not set)
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endif
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#
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# This is the absolute path to the kernel configuration
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# that should be used for this build.
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#
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ifndef K_CONFIG
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$(error $$K_CONFIG not set)
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endif
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#
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# This is the build target. bzImage, uImage, etc.
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#
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ifndef K_BUILD_TARGET
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$(error $$K_BUILD_TARGET not set)
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endif
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############################################################
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############################################################
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ONL_KERNELS := $(ONL)/packages/base/any/kernels
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K_VERSION := $(K_MAJOR_VERSION).$(K_PATCH_LEVEL).$(K_SUB_LEVEL)$(K_SUFFIX)
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ifndef K_NAME
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K_NAME := linux-$(K_VERSION)
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endif
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ifndef K_ARCHIVE_EXT
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K_ARCHIVE_EXT := tar.xz
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endif
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ifndef K_ARCHIVE_NAME
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K_ARCHIVE_NAME := $(K_NAME).$(K_ARCHIVE_EXT)
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endif
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K_ARCHIVE_PATH := $(ONL_KERNELS)/archives/$(K_ARCHIVE_NAME)
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ifndef K_ARCHIVE_URL
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K_ARCHIVE_URL := https://www.kernel.org/pub/linux/kernel/v$(K_MAJOR_VERSION).x/$(K_ARCHIVE_NAME)
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endif
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K_SOURCE_DIR := $(K_TARGET_DIR)/$(K_NAME)
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K_MBUILD_DIR := $(K_SOURCE_DIR)-mbuild
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K_INSTALL_MOD_PATH := $(K_TARGET_DIR)
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K_DTBS_DIR := $(K_SOURCE_DIR)-dtbs
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#
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# The kernel source archive. Download if not present.
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#
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$(K_ARCHIVE_PATH):
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cd $(ONL_KERNELS)/archives && wget $(K_ARCHIVE_URL)
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.PHONY : ksource kpatched
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#
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# The extracted kernel sources
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#
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$(K_SOURCE_DIR)/Makefile: $(K_ARCHIVE_PATH)
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cd $(K_TARGET_DIR) && tar kxf $(K_ARCHIVE_PATH)
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touch -c $(K_SOURCE_DIR)/Makefile
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$(K_MAKE) mrproper
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ksource: $(K_SOURCE_DIR)/Makefile
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#
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# The patched kernel sources
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#
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$(K_SOURCE_DIR)/.PATCHED: $(K_SOURCE_DIR)/Makefile
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$(ONL)/tools/scripts/apply-patches.sh $(K_SOURCE_DIR) $(K_PATCH_DIR) $(K_PATCH_SERIES_FILE)
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touch $(K_SOURCE_DIR)/.PATCHED
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kpatched: $(K_SOURCE_DIR)/.PATCHED
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#
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# Setup the kernel and output directory for the build.
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#
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setup: $(K_SOURCE_DIR)/.PATCHED
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cp $(K_CONFIG) $(K_SOURCE_DIR)/.config
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#
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# Kernel build command.
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#
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K_MAKE := $(MAKE) -C $(K_SOURCE_DIR)
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#
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# Build the kernel.
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#
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build: setup
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+$(K_MAKE) $(K_BUILD_TARGET)
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+$(K_MAKE) modules
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+$(K_MAKE) modules_install INSTALL_MOD_PATH=$(K_INSTALL_MOD_PATH)
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find $(K_INSTALL_MOD_PATH) -type l -name source -delete
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find $(K_INSTALL_MOD_PATH) -type l -name build -delete
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ifdef K_COPY_SRC
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ifdef K_COPY_DST
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ifdef K_COPY_GZIP
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gzip -c $(K_SOURCE_DIR)/$(K_COPY_SRC) > $(K_TARGET_DIR)/$(K_COPY_DST)
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else
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cp $(K_SOURCE_DIR)/$(K_COPY_SRC) $(K_TARGET_DIR)/$(K_COPY_DST)
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endif
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endif
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endif
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MODSYNCLIST_DEFAULT := .config Module.symvers Makefile include scripts drivers \
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arch/x86/include arch/x86/Makefile \
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arch/powerpc/include arch/powerpc/Makefile arch/powerpc/lib arch/powerpc/boot/dts \
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arch/arm/include arch/arm/Makefile arch/arm/lib arch/arm/boot/dts
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MODSYNCLIST := $(MODSYNCLIST_DEFAULT) $(MODSYNCLIST_EXTRA)
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# This file must be preserved for PPC module builds.
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MODSYNCKEEP := arch/powerpc/lib/crtsavres.o
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mbuild: build
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rm -rf $(K_MBUILD_DIR)
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mkdir -p $(K_MBUILD_DIR)
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$(foreach f,$(MODSYNCLIST),$(ONL)/tools/scripts/tree-copy.sh $(K_SOURCE_DIR) $(f) $(K_MBUILD_DIR);)
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find $(K_MBUILD_DIR) -name "*.o*" -delete
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find $(K_MBUILD_DIR) -name "*.c" -delete
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find $(K_MBUILD_DIR) -name "*.ko" -delete
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$(foreach f,$(MODSYNCKEEP), cp $(K_SOURCE_DIR)/$(f) $(K_MBUILD_DIR)/$(f) || true;)
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dtbs: mbuild
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ifdef DTS_LIST
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rm -rf $(K_DTBS_DIR)
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mkdir -p $(K_DTBS_DIR)
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ifeq ($(ARCH),arm64)
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cp $(K_SOURCE_DIR)/arch/$(ARCH)/boot/dts/*.dtb $(K_DTBS_DIR)
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else
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$(foreach name,$(DTS_LIST),$(K_SOURCE_DIR)/scripts/dtc/dtc -I dts -O dtb -o $(K_DTBS_DIR)/$(name).dtb $(K_SOURCE_DIR)/arch/$(ARCH)/boot/dts/$(name).dts; )
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endif
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endif
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#
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# This target can be used to manage the configuration file.
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#
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configure: setup
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$(K_MAKE) menuconfig
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cp $(K_SOURCE_DIR)/.config $(K_CONFIG)
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.DEFAULT_GOAL := dtbs
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