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#
# Copyright (C) 2006 OpenWrt.org
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#
ifeq ($(__target_inc),)
include $(INCLUDE_DIR)/target.mk
endif
ifeq ($(DUMP),1)
KERNEL?=<KERNEL>
BOARD?=<BOARD>
LINUX_VERSION?=<LINUX_VERSION>
else
ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
export GCC_HONOUR_COPTS=s
endif
LINUX_KMOD_SUFFIX=ko
ifneq (,$(findstring uml,$(BOARD)))
KERNEL_CC?=$(HOSTCC)
KERNEL_CROSS?=
else
KERNEL_CC?=$(TARGET_CC)
KERNEL_CROSS?=$(TARGET_CROSS)
endif
ifeq ($(TARGET_BUILD),1)
PATCH_DIR ?= ./patches$(if $(wildcard ./patches-$(KERNEL_PATCHVER)),-$(KERNEL_PATCHVER))
FILES_DIR ?= $(foreach dir,$(wildcard ./files ./files-$(KERNEL_PATCHVER)),"$(dir)")
endif
KERNEL_BUILD_DIR ?= $(BUILD_DIR_BASE)/linux-$(BOARD)$(if $(SUBTARGET),_$(SUBTARGET))$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
LINUX_DIR ?= $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION)
LINUX_UNAME_VERSION:=$(if $(word 3,$(subst ., ,$(KERNEL_BASE))),$(KERNEL_BASE),$(KERNEL_BASE).0)
ifneq ($(findstring -rc,$(LINUX_VERSION)),)
LINUX_UNAME_VERSION:=$(LINUX_UNAME_VERSION)-$(strip $(lastword $(subst -, ,$(LINUX_VERSION))))
endif
MODULES_SUBDIR:=lib/modules/$(LINUX_UNAME_VERSION)
TARGET_MODULES_DIR := $(LINUX_TARGET_DIR)/$(MODULES_SUBDIR)
LINUX_KERNEL:=$(KERNEL_BUILD_DIR)/vmlinux
LINUX_SOURCE:=linux-$(LINUX_VERSION).tar.bz2
TESTING:=$(if $(findstring -rc,$(LINUX_VERSION)),/testing,)
ifeq ($(call qstrip,$(CONFIG_EXTERNAL_KERNEL_TREE))$(call qstrip,$(CONFIG_KERNEL_GIT_CLONE_URI)),)
ifeq ($(word 1,$(subst ., ,$(KERNEL_BASE))),3)
LINUX_SITE:=@KERNEL/linux/kernel/v3.x$(TESTING)
else
LINUX_SITE:=@KERNEL/linux/kernel/v$(KERNEL)$(TESTING)
endif
endif
ifneq ($(TARGET_BUILD),1)
PKG_BUILD_DIR ?= $(KERNEL_BUILD_DIR)/$(PKG_NAME)$(if $(PKG_VERSION),-$(PKG_VERSION))
endif
endif
ifneq (,$(findstring uml,$(BOARD)))
LINUX_KARCH=um
else
ifeq (,$(LINUX_KARCH))
LINUX_KARCH=$(strip $(subst i386,x86,$(subst armeb,arm,$(subst mipsel,mips,$(subst mips64,mips,$(subst mips64el,mips,$(subst sh2,sh,$(subst sh3,sh,$(subst sh4,sh,$(ARCH))))))))))
endif
endif
define KernelPackage/Defaults
FILES:=
AUTOLOAD:=
endef
define ModuleAutoLoad
$(SH_FUNC) \
export modules=; \
add_module() { \
priority="$$$$$$$$1"; \
mods="$$$$$$$$2"; \
boot="$$$$$$$$3"; \
shift 3; \
mkdir -p $(2)/etc/modules.d; \
( \
[ "$$$$$$$$boot" = "1" ] && { \
echo '# May be required for rootfs' ; \
} ; \
for mod in $$$$$$$$mods; do \
echo "$$$$$$$$mod"; \
done \
) > $(2)/etc/modules.d/$$$$$$$$priority-$(1); \
modules="$$$$$$$${modules:+$$$$$$$$modules }$$$$$$$$priority-$(1)"; \
}; \
$(3) \
if [ -n "$$$$$$$$modules" ]; then \
mkdir -p $(2)/etc/modules.d; \
mkdir -p $(2)/CONTROL; \
echo "#!/bin/sh" > $(2)/CONTROL/postinst; \
echo "[ -z \"\$$$$$$$$IPKG_INSTROOT\" ] || exit 0" >> $(2)/CONTROL/postinst; \
echo ". /etc/functions.sh" >> $(2)/CONTROL/postinst; \
echo "load_modules $$$$$$$$modules" >> $(2)/CONTROL/postinst; \
chmod 0755 $(2)/CONTROL/postinst; \
fi
endef
ifeq ($(DUMP)$(TARGET_BUILD),)
-include $(LINUX_DIR)/.config
endif
define KernelPackage/depends
$(STAMP_BUILT): $(LINUX_DIR)/.config
define KernelPackage/depends
endef
endef
define KernelPackage
NAME:=$(1)
$(eval $(call Package/Default))
$(eval $(call KernelPackage/Defaults))
$(eval $(call KernelPackage/$(1)))
$(eval $(call KernelPackage/$(1)/$(BOARD)))
define Package/kmod-$(1)
TITLE:=$(TITLE)
SECTION:=kernel
CATEGORY:=Kernel modules
DESCRIPTION:=$(DESCRIPTION)
EXTRA_DEPENDS:=kernel (=$(LINUX_VERSION)-$(LINUX_RELEASE))
VERSION:=$(LINUX_VERSION)$(if $(PKG_VERSION),+$(PKG_VERSION))-$(if $(PKG_RELEASE),$(PKG_RELEASE),$(LINUX_RELEASE))
$(call KernelPackage/$(1))
$(call KernelPackage/$(1)/$(BOARD))
endef
ifdef KernelPackage/$(1)/description
define Package/kmod-$(1)/description
$(call KernelPackage/$(1)/description)
endef
endif
ifdef KernelPackage/$(1)/config
define Package/kmod-$(1)/config
$(call KernelPackage/$(1)/config)
endef
endif
$(call KernelPackage/depends)
ifneq ($(if $(filter-out %=y %=n %=m,$(KCONFIG)),$(filter m,$(foreach c,$(filter-out %=y %=n %=m,$(KCONFIG)),$($(c)))),.),)
ifneq ($(strip $(FILES)),)
define Package/kmod-$(1)/install
mkdir -p $$(1)/$(MODULES_SUBDIR)
$(CP) -L $$(FILES) $$(1)/$(MODULES_SUBDIR)/
$(call ModuleAutoLoad,$(1),$$(1),$(AUTOLOAD))
$(call KernelPackage/$(1)/install,$$(1))
endef
endif
$(if $(CONFIG_PACKAGE_kmod-$(1)),
else
compile: kmod-$(1)-unavailable
kmod-$(1)-unavailable:
@echo "WARNING: kmod-$(1) is not available in the kernel config"
)
endif
$$(eval $$(call BuildPackage,kmod-$(1)))
$$(IPKG_kmod-$(1)): $$(wildcard $$(FILES))
endef
define AutoLoad
add_module "$(1)" "$(2)" "$(3)";
endef
version_field=$(if $(word $(1),$(2)),$(word $(1),$(2)),0)
kernel_version_merge=$$(( ($(call version_field,1,$(1)) << 24) + ($(call version_field,2,$(1)) << 16) + ($(call version_field,3,$(1)) << 8) + $(call version_field,4,$(1)) ))
ifdef DUMP
kernel_version_cmp=
else
kernel_version_cmp=$(shell [ $(call kernel_version_merge,$(call split_version,$(2))) $(1) $(call kernel_version_merge,$(call split_version,$(3))) ] && echo 1 )
endif
CompareKernelPatchVer=$(if $(call kernel_version_cmp,-$(2),$(1),$(3)),1,0)
kernel_patchver_gt=$(call kernel_version_cmp,-gt,$(KERNEL_PATCHVER),$(1))
kernel_patchver_ge=$(call kernel_version_cmp,-ge,$(KERNEL_PATCHVER),$(1))
kernel_patchver_eq=$(call kernel_version_cmp,-eq,$(KERNEL_PATCHVER),$(1))
kernel_patchver_le=$(call kernel_version_cmp,-le,$(KERNEL_PATCHVER),$(1))
kernel_patchver_lt=$(call kernel_version_cmp,-lt,$(KERNEL_PATCHVER),$(1))
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