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openwrt/include/kernel.mk
Jonas Gorski e0342d2684 sdk: don't try to build in-kernel kmods 
We don't ship the kernel sources, so using the base git as a feed will
fail when trying to build kernel modules with separate install steps.
Instead of trying to fixup the install steps, let's just skip building
kernel modules alltogether and just create empty packages.

Out-of-kernel modules are still expected to exist and are packaged, as
for these sources are fetched during the normal build steps.

Reported-by: Jo-Philipp Wich <jow@openwrt.org>
Signed-off-by: Jonas Gorski <jogo@openwrt.org>

SVN-Revision: 43525
2014-12-05 11:50:42 +00:00

232 lines
7.1 KiB
Makefile
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#
# Copyright (C) 2006-2011 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>
LINUX_VERMAGIC?=<LINUX_VERMAGIC>
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 ?= $(BUILD_DIR)/linux-$(BOARD)$(if $(SUBTARGET),_$(SUBTARGET))
LINUX_DIR ?= $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION)
ifeq ($(strip $(call CompareKernelPatchVer,$(KERNEL_PATCHVER),ge,3.7.0)),1)
LINUX_UAPI_DIR=uapi/
endif
LINUX_VERMAGIC:=$(strip $(shell cat $(LINUX_DIR)/.vermagic 2>/dev/null))
LINUX_VERMAGIC:=$(if $(LINUX_VERMAGIC),$(LINUX_VERMAGIC),unknown)
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.xz
TESTING:=$(if $(findstring -rc,$(LINUX_VERSION)),/testing,)
ifeq ($(call qstrip,$(CONFIG_EXTERNAL_KERNEL_TREE))$(call qstrip,$(CONFIG_KERNEL_GIT_CLONE_URI)),)
LINUX_SITE:=@KERNEL/linux/kernel/v3.x$(TESTING)
endif
ifneq ($(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,$(subst aarch64,arm64,$(subst aarch64_be,arm64,$(ARCH))))))))))))
endif
endif
define KernelPackage/Defaults
FILES:=
AUTOLOAD:=
endef
define ModuleAutoLoad
$(SH_FUNC) \
export modules=; \
probe_module() { \
mods="$$$$$$$$1"; \
boot="$$$$$$$$2"; \
shift 2; \
for mod in $$$$$$$$mods; do \
mkdir -p $(2)/etc/modules.d; \
echo "$$$$$$$$mod" >> $(2)/etc/modules.d/$(1); \
done; \
if [ -e $(2)/etc/modules.d/$(1) ]; then \
if [ "$$$$$$$$boot" = "1" ]; then \
mkdir -p $(2)/etc/modules-boot.d; \
ln -s ../modules.d/$(1) $(2)/etc/modules-boot.d/; \
fi; \
modules="$$$$$$$${modules:+$$$$$$$$modules}"; \
fi; \
}; \
add_module() { \
priority="$$$$$$$$1"; \
mods="$$$$$$$$2"; \
boot="$$$$$$$$3"; \
shift 3; \
for mod in $$$$$$$$mods; do \
mkdir -p $(2)/etc/modules.d; \
echo "$$$$$$$$mod" >> $(2)/etc/modules.d/$$$$$$$$priority-$(1); \
done; \
if [ -e $(2)/etc/modules.d/$$$$$$$$priority-$(1) ]; then \
if [ "$$$$$$$$boot" = "1" ]; then \
mkdir -p $(2)/etc/modules-boot.d; \
ln -s ../modules.d/$$$$$$$$priority-$(1) $(2)/etc/modules-boot.d/; \
fi; \
modules="$$$$$$$${modules:+$$$$$$$$modules }$$$$$$$$priority-$(1)"; \
fi; \
}; \
$(3) \
if [ -n "$$$$$$$$modules" ]; then \
mkdir -p $(2)/etc/modules.d; \
mkdir -p $(2)/CONTROL; \
echo "#!/bin/sh" > $(2)/CONTROL/postinst; \
echo "[ -z \"\$$$$$$$$IPKG_INSTROOT\" ] || exit 0" >> $(2)/CONTROL/postinst; \
echo ". /lib/functions.sh" >> $(2)/CONTROL/postinst; \
echo "insert_modules $$$$$$$$modules" >> $(2)/CONTROL/postinst; \
chmod 0755 $(2)/CONTROL/postinst; \
fi
endef
ifeq ($(DUMP)$(TARGET_BUILD),)
-include $(LINUX_DIR)/.config
endif
define KernelPackage/depends
$(STAMP_BUILT): $(LINUX_DIR)/.config
define KernelPackage/depends
endef
endef
define KernelPackage
NAME:=$(1)
$(eval $(call Package/Default))
$(eval $(call KernelPackage/Defaults))
$(eval $(call KernelPackage/$(1)))
$(eval $(call KernelPackage/$(1)/$(BOARD)))
define Package/kmod-$(1)
TITLE:=$(TITLE)
SECTION:=kernel
CATEGORY:=Kernel modules
DESCRIPTION:=$(DESCRIPTION)
EXTRA_DEPENDS:=kernel (=$(LINUX_VERSION)-$(LINUX_RELEASE)-$(LINUX_VERMAGIC))
VERSION:=$(LINUX_VERSION)$(if $(PKG_VERSION),+$(PKG_VERSION))-$(if $(PKG_RELEASE),$(PKG_RELEASE),$(LINUX_RELEASE))
$(call KernelPackage/$(1))
$(call KernelPackage/$(1)/$(BOARD))
endef
ifdef KernelPackage/$(1)/description
define Package/kmod-$(1)/description
$(call KernelPackage/$(1)/description)
endef
endif
ifdef KernelPackage/$(1)/config
define Package/kmod-$(1)/config
$(call KernelPackage/$(1)/config)
endef
endif
$(call KernelPackage/depends)
ifneq ($(if $(filter-out %=y %=n %=m,$(KCONFIG)),$(filter m y,$(foreach c,$(filter-out %=y %=n %=m,$(KCONFIG)),$($(c)))),.),)
ifneq ($(if $(SDK),$(filter-out $(LINUX_DIR)/%.ko,$(FILES)),$(strip $(FILES))),)
define Package/kmod-$(1)/install
@for mod in $$(FILES); do \
if [ -e $$$$$$$$mod ]; then \
mkdir -p $$(1)/$(MODULES_SUBDIR) ; \
$(CP) -L $$$$$$$$mod $$(1)/$(MODULES_SUBDIR)/ ; \
elif [ -e "$(LINUX_DIR)/modules.builtin" ]; then \
if grep -q "$$$$$$$${mod##$(LINUX_DIR)/}" "$(LINUX_DIR)/modules.builtin"; then \
echo "NOTICE: module '$$$$$$$$mod' is built-in."; \
else \
echo "ERROR: module '$$$$$$$$mod' is missing." >&2; \
exit 1; \
fi; \
else \
echo "WARNING: module '$$$$$$$$mod' missing and modules.builtin not available, assuming built-in." >&2; \
fi; \
done;
$(call ModuleAutoLoad,$(1),$$(1),$(AUTOLOAD))
$(call KernelPackage/$(1)/install,$$(1))
endef
endif
$(if $(CONFIG_PACKAGE_kmod-$(1)),
else
compile: $(1)-disabled
$(1)-disabled:
@echo "WARNING: kmod-$(1) is not available in the kernel config - generating empty package" >&2
define Package/kmod-$(1)/install
true
endef
)
endif
$$(eval $$(call BuildPackage,kmod-$(1)))
$$(IPKG_kmod-$(1)): $$(wildcard $$(FILES))
endef
define AutoLoad
add_module "$(1)" "$(2)" "$(3)";
endef
define AutoProbe
probe_module "$(1)" "$(2)";
endef
version_field=$(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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