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domenico
290
include/kernel.mk
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290
include/kernel.mk
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#
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# Copyright (C) 2006-2015 OpenWrt.org
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#
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# This is free software, licensed under the GNU General Public License v2.
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# See /LICENSE for more information.
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#
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ifneq ($(filter check,$(MAKECMDGOALS)),)
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CHECK:=1
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DUMP:=1
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endif
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ifneq ($(SOURCE_DATE_EPOCH),)
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ifndef DUMP
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KBUILD_BUILD_TIMESTAMP:=$(shell perl -e 'print scalar gmtime($(SOURCE_DATE_EPOCH))')
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endif
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endif
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ifeq ($(__target_inc),)
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ifndef CHECK
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include $(INCLUDE_DIR)/target.mk
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endif
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endif
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ifeq ($(DUMP),1)
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KERNEL?=<KERNEL>
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BOARD?=<BOARD>
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LINUX_VERSION?=<LINUX_VERSION>
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LINUX_VERMAGIC?=<LINUX_VERMAGIC>
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else
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ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
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export GCC_HONOUR_COPTS=s
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endif
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LINUX_KMOD_SUFFIX=ko
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ifneq (,$(findstring uml,$(BOARD)))
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KERNEL_CC?=$(HOSTCC)
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KERNEL_CROSS?=
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else
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KERNEL_CC?=$(TARGET_CC)
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KERNEL_CROSS?=$(TARGET_CROSS)
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endif
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ifeq ($(TARGET_BUILD),1)
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PATCH_DIR ?= $(CURDIR)/patches$(if $(wildcard ./patches-$(KERNEL_PATCHVER)),-$(KERNEL_PATCHVER))
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FILES_DIR ?= $(foreach dir,$(wildcard $(CURDIR)/files $(CURDIR)/files-$(KERNEL_PATCHVER)),"$(dir)")
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endif
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KERNEL_BUILD_DIR ?= $(BUILD_DIR)/linux-$(BOARD)$(if $(SUBTARGET),_$(SUBTARGET))
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LINUX_DIR ?= $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION)
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LINUX_UAPI_DIR=uapi/
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LINUX_VERMAGIC:=$(strip $(shell cat $(LINUX_DIR)/.vermagic 2>/dev/null))
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LINUX_VERMAGIC:=$(if $(LINUX_VERMAGIC),$(LINUX_VERMAGIC),unknown)
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LINUX_UNAME_VERSION:=$(KERNEL_BASE)
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ifneq ($(findstring -rc,$(LINUX_VERSION)),)
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LINUX_UNAME_VERSION:=$(LINUX_UNAME_VERSION)-$(strip $(lastword $(subst -, ,$(LINUX_VERSION))))
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endif
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LINUX_KERNEL:=$(KERNEL_BUILD_DIR)/vmlinux
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LINUX_SOURCE:=linux-$(LINUX_VERSION).tar.xz
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ifeq ($(call qstrip,$(CONFIG_EXTERNAL_KERNEL_TREE))$(call qstrip,$(CONFIG_KERNEL_GIT_CLONE_URI)),)
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LINUX_SITE:=@KERNEL/linux/kernel/v$(word 1,$(subst ., ,$(KERNEL_BASE))).x
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else
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LINUX_UNAME_VERSION:=$(strip $(shell cat $(LINUX_DIR)/include/config/kernel.release 2>/dev/null))
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endif
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MODULES_SUBDIR:=lib/modules/$(LINUX_UNAME_VERSION)
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TARGET_MODULES_DIR:=$(LINUX_TARGET_DIR)/$(MODULES_SUBDIR)
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ifneq ($(TARGET_BUILD),1)
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PKG_BUILD_DIR ?= $(KERNEL_BUILD_DIR)/$(PKG_NAME)$(if $(PKG_VERSION),-$(PKG_VERSION))
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endif
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endif
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ifneq (,$(findstring uml,$(BOARD)))
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LINUX_KARCH=um
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else ifneq (,$(findstring $(ARCH) , aarch64 aarch64_be ))
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LINUX_KARCH := arm64
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else ifneq (,$(findstring $(ARCH) , arceb ))
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LINUX_KARCH := arc
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else ifneq (,$(findstring $(ARCH) , armeb ))
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LINUX_KARCH := arm
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else ifneq (,$(findstring $(ARCH) , mipsel mips64 mips64el ))
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LINUX_KARCH := mips
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else ifneq (,$(findstring $(ARCH) , powerpc64 ))
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LINUX_KARCH := powerpc
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else ifneq (,$(findstring $(ARCH) , sh2 sh3 sh4 ))
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LINUX_KARCH := sh
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else ifneq (,$(findstring $(ARCH) , i386 x86_64 ))
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LINUX_KARCH := x86
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else
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LINUX_KARCH := $(ARCH)
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endif
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KERNEL_MAKE = $(MAKE) $(KERNEL_MAKEOPTS)
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KERNEL_MAKE_FLAGS = \
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HOSTCFLAGS="$(HOST_CFLAGS) -Wall -Wmissing-prototypes -Wstrict-prototypes" \
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CROSS_COMPILE="$(KERNEL_CROSS)" \
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ARCH="$(LINUX_KARCH)" \
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KBUILD_HAVE_NLS=no \
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KBUILD_BUILD_USER="$(call qstrip,$(CONFIG_KERNEL_BUILD_USER))" \
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KBUILD_BUILD_HOST="$(call qstrip,$(CONFIG_KERNEL_BUILD_DOMAIN))" \
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KBUILD_BUILD_TIMESTAMP="$(KBUILD_BUILD_TIMESTAMP)" \
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KBUILD_BUILD_VERSION="0" \
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HOST_LOADLIBES="-L$(STAGING_DIR_HOST)/lib" \
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CONFIG_SHELL="$(BASH)" \
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$(if $(findstring c,$(OPENWRT_VERBOSE)),V=1,V='') \
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$(if $(PKG_BUILD_ID),LDFLAGS_MODULE=--build-id=0x$(PKG_BUILD_ID)) \
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cmd_syscalls=
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ifeq ($(call qstrip,$(CONFIG_EXTERNAL_KERNEL_TREE))$(call qstrip,$(CONFIG_KERNEL_GIT_CLONE_URI)),)
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KERNEL_MAKE_FLAGS += \
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KERNELRELEASE=$(LINUX_VERSION)
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endif
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KERNEL_MAKEOPTS := -C $(LINUX_DIR) $(KERNEL_MAKE_FLAGS)
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ifdef CONFIG_USE_SPARSE
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KERNEL_MAKEOPTS += C=1 CHECK=$(STAGING_DIR_HOST)/bin/sparse
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endif
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PKG_EXTMOD_SUBDIRS ?= .
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define populate_module_symvers
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@mkdir -p $(PKG_INFO_DIR)
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cat /dev/null > $(PKG_INFO_DIR)/$(PKG_NAME).symvers; \
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for subdir in $(PKG_EXTMOD_SUBDIRS); do \
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cat $(PKG_INFO_DIR)/*.symvers 2>/dev/null > $(PKG_BUILD_DIR)/$$$$subdir/Module.symvers; \
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done
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endef
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define collect_module_symvers
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for subdir in $(PKG_EXTMOD_SUBDIRS); do \
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grep -F $$$$(readlink -f $(PKG_BUILD_DIR)) $(PKG_BUILD_DIR)/$$$$subdir/Module.symvers >> $(PKG_BUILD_DIR)/Module.symvers.tmp; \
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done; \
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sort -u $(PKG_BUILD_DIR)/Module.symvers.tmp > $(PKG_BUILD_DIR)/Module.symvers; \
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mv $(PKG_BUILD_DIR)/Module.symvers $(PKG_INFO_DIR)/$(PKG_NAME).symvers
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endef
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define KernelPackage/hooks
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ifneq ($(PKG_NAME),kernel)
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Hooks/Compile/Pre += populate_module_symvers
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Hooks/Compile/Post += collect_module_symvers
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endif
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define KernelPackage/hooks
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endef
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endef
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define KernelPackage/Defaults
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FILES:=
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AUTOLOAD:=
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MODPARAMS:=
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PKGFLAGS+=nonshared
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endef
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# 1: name
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# 2: install prefix
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# 3: module priority prefix
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# 4: required for boot
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# 5: module list
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define ModuleAutoLoad
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$(if $(5), \
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mkdir -p $(2)/etc/modules.d; \
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($(foreach mod,$(5), \
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echo "$(mod)$(if $(MODPARAMS.$(mod)), $(MODPARAMS.$(mod)),$(if $(MODPARAMS), $(MODPARAMS)))"; )) > $(2)/etc/modules.d/$(3)$(1); \
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$(if $(4), \
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mkdir -p $(2)/etc/modules-boot.d; \
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ln -sf ../modules.d/$(3)$(1) $(2)/etc/modules-boot.d/;))
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endef
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ifeq ($(DUMP)$(TARGET_BUILD),)
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-include $(LINUX_DIR)/.config
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endif
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define KernelPackage/depends
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$(STAMP_BUILT): $(LINUX_DIR)/.config
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define KernelPackage/depends
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endef
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endef
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define KernelPackage
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NAME:=$(1)
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$(eval $(call Package/Default))
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$(eval $(call KernelPackage/Defaults))
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$(eval $(call KernelPackage/$(1)))
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$(eval $(call KernelPackage/$(1)/$(BOARD)))
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$(eval $(call KernelPackage/$(1)/$(BOARD)/$(if $(SUBTARGET),$(SUBTARGET),generic)))
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define Package/kmod-$(1)
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TITLE:=$(TITLE)
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SECTION:=kernel
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CATEGORY:=Kernel modules
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DESCRIPTION:=$(DESCRIPTION)
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EXTRA_DEPENDS:=kernel (=$(LINUX_VERSION)-$(LINUX_RELEASE)-$(LINUX_VERMAGIC))
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VERSION:=$(LINUX_VERSION)$(if $(PKG_VERSION),+$(PKG_VERSION))-$(if $(PKG_RELEASE),$(PKG_RELEASE),$(LINUX_RELEASE))
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PKGFLAGS:=$(PKGFLAGS)
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$(call KernelPackage/$(1))
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$(call KernelPackage/$(1)/$(BOARD))
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$(call KernelPackage/$(1)/$(BOARD)/$(if $(SUBTARGET),$(SUBTARGET),generic))
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endef
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ifdef KernelPackage/$(1)/conffiles
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define Package/kmod-$(1)/conffiles
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$(call KernelPackage/$(1)/conffiles)
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endef
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endif
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ifdef KernelPackage/$(1)/description
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define Package/kmod-$(1)/description
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$(call KernelPackage/$(1)/description)
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endef
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endif
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ifdef KernelPackage/$(1)/config
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define Package/kmod-$(1)/config
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$(call KernelPackage/$(1)/config)
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endef
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endif
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$(call KernelPackage/depends)
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$(call KernelPackage/hooks)
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ifneq ($(if $(filter-out %=y %=n %=m,$(KCONFIG)),$(filter m y,$(foreach c,$(filter-out %=y %=n %=m,$(KCONFIG)),$($(c)))),.),)
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define Package/kmod-$(1)/install
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@for mod in $$(call version_filter,$$(FILES)); do \
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if grep -q "$$$$$$$${mod##$(LINUX_DIR)/}" "$(LINUX_DIR)/modules.builtin"; then \
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echo "NOTICE: module '$$$$$$$$mod' is built-in."; \
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elif [ -e $$$$$$$$mod ]; then \
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mkdir -p $$(1)/$(MODULES_SUBDIR) ; \
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$(CP) -L $$$$$$$$mod $$(1)/$(MODULES_SUBDIR)/ ; \
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else \
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echo "ERROR: module '$$$$$$$$mod' is missing." >&2; \
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exit 1; \
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fi; \
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done;
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$(call ModuleAutoLoad,$(1),$$(1),$(filter-out 0-,$(word 1,$(AUTOLOAD))-),$(filter-out 0,$(word 2,$(AUTOLOAD))),$(wordlist 3,99,$(AUTOLOAD)))
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$(call KernelPackage/$(1)/install,$$(1))
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endef
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$(if $(CONFIG_PACKAGE_kmod-$(1)),
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else
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compile: $(1)-disabled
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$(1)-disabled:
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@echo "WARNING: kmod-$(1) is not available in the kernel config - generating empty package" >&2
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define Package/kmod-$(1)/install
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true
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endef
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)
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endif
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$$(eval $$(call BuildPackage,kmod-$(1)))
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$$(IPKG_kmod-$(1)): $$(wildcard $$(FILES))
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endef
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version_filter=$(if $(findstring @,$(1)),$(shell $(SCRIPT_DIR)/package-metadata.pl version_filter $(KERNEL_PATCHVER) $(1)),$(1))
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# 1: priority (optional)
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# 2: module list
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# 3: boot flag
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define AutoLoad
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$(if $(1),$(1),0) $(if $(3),1,0) $(call version_filter,$(2))
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endef
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# 1: module list
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# 2: boot flag
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define AutoProbe
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$(call AutoLoad,,$(1),$(2))
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endef
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version_field=$(if $(word $(1),$(2)),$(word $(1),$(2)),0)
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kernel_version_merge=$$(( ($(call version_field,1,$(1)) << 24) + ($(call version_field,2,$(1)) << 16) + ($(call version_field,3,$(1)) << 8) + $(call version_field,4,$(1)) ))
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ifdef DUMP
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kernel_version_cmp=
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else
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kernel_version_cmp=$(shell [ $(call kernel_version_merge,$(call split_version,$(2))) $(1) $(call kernel_version_merge,$(call split_version,$(3))) ] && echo 1 )
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endif
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CompareKernelPatchVer=$(if $(call kernel_version_cmp,-$(2),$(1),$(3)),1,0)
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kernel_patchver_gt=$(call kernel_version_cmp,-gt,$(KERNEL_PATCHVER),$(1))
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kernel_patchver_ge=$(call kernel_version_cmp,-ge,$(KERNEL_PATCHVER),$(1))
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kernel_patchver_eq=$(call kernel_version_cmp,-eq,$(KERNEL_PATCHVER),$(1))
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kernel_patchver_le=$(call kernel_version_cmp,-le,$(KERNEL_PATCHVER),$(1))
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kernel_patchver_lt=$(call kernel_version_cmp,-lt,$(KERNEL_PATCHVER),$(1))
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