2 # Copyright (C) 2006-2015 OpenWrt.org
4 # This is free software, licensed under the GNU General Public License v2.
5 # See /LICENSE for more information.
8 ifneq ($(filter check,$(MAKECMDGOALS)),)
13 ifneq ($(SOURCE_DATE_EPOCH),)
15 KBUILD_BUILD_TIMESTAMP:=$(shell perl -e 'print scalar gmtime($(SOURCE_DATE_EPOCH))')
19 ifeq ($(__target_inc),)
21 include $(INCLUDE_DIR)/target.mk
28 LINUX_VERSION?=<LINUX_VERSION>
29 LINUX_VERMAGIC?=<LINUX_VERMAGIC>
31 ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
32 export GCC_HONOUR_COPTS=s
37 ifneq (,$(findstring uml,$(BOARD)))
41 KERNEL_CC?=$(TARGET_CC)
42 KERNEL_CROSS?=$(TARGET_CROSS)
45 ifeq ($(TARGET_BUILD),1)
46 PATCH_DIR ?= $(CURDIR)/patches$(if $(wildcard ./patches-$(KERNEL_PATCHVER)),-$(KERNEL_PATCHVER))
47 FILES_DIR ?= $(foreach dir,$(wildcard $(CURDIR)/files $(CURDIR)/files-$(KERNEL_PATCHVER)),"$(dir)")
49 KERNEL_BUILD_DIR ?= $(BUILD_DIR)/linux-$(BOARD)$(if $(SUBTARGET),_$(SUBTARGET))
50 LINUX_DIR ?= $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION)
52 LINUX_VERMAGIC:=$(strip $(shell cat $(LINUX_DIR)/.vermagic 2>/dev/null))
53 LINUX_VERMAGIC:=$(if $(LINUX_VERMAGIC),$(LINUX_VERMAGIC),unknown)
55 LINUX_UNAME_VERSION:=$(KERNEL_BASE)
56 ifneq ($(findstring -rc,$(LINUX_VERSION)),)
57 LINUX_UNAME_VERSION:=$(LINUX_UNAME_VERSION)-$(strip $(lastword $(subst -, ,$(LINUX_VERSION))))
60 LINUX_KERNEL:=$(KERNEL_BUILD_DIR)/vmlinux
62 LINUX_SOURCE:=linux-$(LINUX_VERSION).tar.xz
63 TESTING:=$(if $(findstring -rc,$(LINUX_VERSION)),/testing,)
64 ifeq ($(call qstrip,$(CONFIG_EXTERNAL_KERNEL_TREE))$(call qstrip,$(CONFIG_KERNEL_GIT_CLONE_URI)),)
65 LINUX_SITE:=@KERNEL/linux/kernel/v$(word 1,$(subst ., ,$(KERNEL_BASE))).x$(TESTING)
67 LINUX_UNAME_VERSION:=$(strip $(shell cat $(LINUX_DIR)/include/config/kernel.release 2>/dev/null))
70 MODULES_SUBDIR:=lib/modules/$(LINUX_UNAME_VERSION)
71 TARGET_MODULES_DIR:=$(LINUX_TARGET_DIR)/$(MODULES_SUBDIR)
73 ifneq ($(TARGET_BUILD),1)
74 PKG_BUILD_DIR ?= $(KERNEL_BUILD_DIR)/$(PKG_NAME)$(if $(PKG_VERSION),-$(PKG_VERSION))
78 ifneq (,$(findstring uml,$(BOARD)))
80 else ifneq (,$(findstring $(ARCH) , aarch64 aarch64_be ))
82 else ifneq (,$(findstring $(ARCH) , arceb ))
84 else ifneq (,$(findstring $(ARCH) , armeb ))
86 else ifneq (,$(findstring $(ARCH) , mipsel mips64 mips64el ))
88 else ifneq (,$(findstring $(ARCH) , powerpc64 ))
89 LINUX_KARCH := powerpc
90 else ifneq (,$(findstring $(ARCH) , sh2 sh3 sh4 ))
92 else ifneq (,$(findstring $(ARCH) , i386 x86_64 ))
95 LINUX_KARCH := $(ARCH)
98 KERNEL_MAKE = $(MAKE) $(KERNEL_MAKEOPTS)
100 KERNEL_MAKE_FLAGS := \
101 HOSTCFLAGS="$(HOST_CFLAGS) -Wall -Wmissing-prototypes -Wstrict-prototypes" \
102 CROSS_COMPILE="$(KERNEL_CROSS)" \
103 ARCH="$(LINUX_KARCH)" \
105 KBUILD_BUILD_USER="$(call qstrip,$(CONFIG_KERNEL_BUILD_USER))" \
106 KBUILD_BUILD_HOST="$(call qstrip,$(CONFIG_KERNEL_BUILD_DOMAIN))" \
107 KBUILD_BUILD_TIMESTAMP="$(KBUILD_BUILD_TIMESTAMP)" \
108 KBUILD_BUILD_VERSION="0" \
109 HOST_LOADLIBES="-L$(STAGING_DIR_HOST)/lib" \
110 CONFIG_SHELL="$(BASH)" \
111 $(if $(findstring c,$(OPENWRT_VERBOSE)),V=1,V='') \
112 $(if $(PKG_BUILD_ID),LDFLAGS_MODULE=--build-id=0x$(PKG_BUILD_ID)) \
115 ifeq ($(call qstrip,$(CONFIG_EXTERNAL_KERNEL_TREE))$(call qstrip,$(CONFIG_KERNEL_GIT_CLONE_URI)),)
116 KERNEL_MAKE_FLAGS += \
117 KERNELRELEASE=$(LINUX_VERSION)
120 KERNEL_MAKEOPTS := -C $(LINUX_DIR) $(KERNEL_MAKE_FLAGS)
122 ifdef CONFIG_USE_SPARSE
123 KERNEL_MAKEOPTS += C=1 CHECK=$(STAGING_DIR_HOST)/bin/sparse
126 PKG_EXTMOD_SUBDIRS ?= .
128 define populate_module_symvers
129 @mkdir -p $(PKG_INFO_DIR)
130 cat /dev/null > $(PKG_INFO_DIR)/$(PKG_NAME).symvers; \
131 for subdir in $(PKG_EXTMOD_SUBDIRS); do \
132 cat $(PKG_INFO_DIR)/*.symvers 2>/dev/null > $(PKG_BUILD_DIR)/$$$$subdir/Module.symvers; \
136 define collect_module_symvers
137 for subdir in $(PKG_EXTMOD_SUBDIRS); do \
138 grep -F $$$$(readlink -f $(PKG_BUILD_DIR)) $(PKG_BUILD_DIR)/$$$$subdir/Module.symvers >> $(PKG_BUILD_DIR)/Module.symvers.tmp; \
140 sort -u $(PKG_BUILD_DIR)/Module.symvers.tmp > $(PKG_BUILD_DIR)/Module.symvers; \
141 mv $(PKG_BUILD_DIR)/Module.symvers $(PKG_INFO_DIR)/$(PKG_NAME).symvers
144 define KernelPackage/hooks
145 ifneq ($(PKG_NAME),kernel)
146 Hooks/Compile/Pre += populate_module_symvers
147 Hooks/Compile/Post += collect_module_symvers
149 define KernelPackage/hooks
153 define KernelPackage/Defaults
162 # 3: module priority prefix
163 # 4: required for boot
165 define ModuleAutoLoad
167 mkdir -p $(2)/etc/modules.d; \
168 ($(foreach mod,$(5), \
169 echo "$(mod)$(if $(MODPARAMS.$(mod)), $(MODPARAMS.$(mod)),$(if $(MODPARAMS), $(MODPARAMS)))"; )) > $(2)/etc/modules.d/$(3)$(1); \
171 mkdir -p $(2)/etc/modules-boot.d; \
172 ln -sf ../modules.d/$(3)$(1) $(2)/etc/modules-boot.d/;))
175 ifeq ($(DUMP)$(TARGET_BUILD),)
176 -include $(LINUX_DIR)/.config
179 define KernelPackage/depends
180 $(STAMP_BUILT): $(LINUX_DIR)/.config
181 define KernelPackage/depends
187 $(eval $(call Package/Default))
188 $(eval $(call KernelPackage/Defaults))
189 $(eval $(call KernelPackage/$(1)))
190 $(eval $(call KernelPackage/$(1)/$(BOARD)))
191 $(eval $(call KernelPackage/$(1)/$(BOARD)/$(if $(SUBTARGET),$(SUBTARGET),generic)))
193 define Package/kmod-$(1)
196 CATEGORY:=Kernel modules
197 DESCRIPTION:=$(DESCRIPTION)
198 EXTRA_DEPENDS:=kernel (=$(LINUX_VERSION)-$(LINUX_RELEASE)-$(LINUX_VERMAGIC))
199 VERSION:=$(LINUX_VERSION)$(if $(PKG_VERSION),+$(PKG_VERSION))-$(if $(PKG_RELEASE),$(PKG_RELEASE),$(LINUX_RELEASE))
200 PKGFLAGS:=$(PKGFLAGS)
201 $(call KernelPackage/$(1))
202 $(call KernelPackage/$(1)/$(BOARD))
203 $(call KernelPackage/$(1)/$(BOARD)/$(if $(SUBTARGET),$(SUBTARGET),generic))
206 ifdef KernelPackage/$(1)/conffiles
207 define Package/kmod-$(1)/conffiles
208 $(call KernelPackage/$(1)/conffiles)
212 ifdef KernelPackage/$(1)/description
213 define Package/kmod-$(1)/description
214 $(call KernelPackage/$(1)/description)
218 ifdef KernelPackage/$(1)/config
219 define Package/kmod-$(1)/config
220 $(call KernelPackage/$(1)/config)
224 $(call KernelPackage/depends)
225 $(call KernelPackage/hooks)
227 ifneq ($(if $(filter-out %=y %=n %=m,$(KCONFIG)),$(filter m y,$(foreach c,$(filter-out %=y %=n %=m,$(KCONFIG)),$($(c)))),.),)
228 define Package/kmod-$(1)/install
229 @for mod in $$(call version_filter,$$(FILES)); do \
230 if grep -q "$$$$$$$${mod##$(LINUX_DIR)/}" "$(LINUX_DIR)/modules.builtin"; then \
231 echo "NOTICE: module '$$$$$$$$mod' is built-in."; \
232 elif [ -e $$$$$$$$mod ]; then \
233 mkdir -p $$(1)/$(MODULES_SUBDIR) ; \
234 $(CP) -L $$$$$$$$mod $$(1)/$(MODULES_SUBDIR)/ ; \
236 echo "ERROR: module '$$$$$$$$mod' is missing." >&2; \
240 $(call ModuleAutoLoad,$(1),$$(1),$(filter-out 0-,$(word 1,$(AUTOLOAD))-),$(filter-out 0,$(word 2,$(AUTOLOAD))),$(wordlist 3,99,$(AUTOLOAD)))
241 $(call KernelPackage/$(1)/install,$$(1))
243 $(if $(CONFIG_PACKAGE_kmod-$(1)),
245 compile: $(1)-disabled
247 @echo "WARNING: kmod-$(1) is not available in the kernel config - generating empty package" >&2
249 define Package/kmod-$(1)/install
254 $$(eval $$(call BuildPackage,kmod-$(1)))
256 $$(IPKG_kmod-$(1)): $$(wildcard $$(FILES))
259 version_filter=$(if $(findstring @,$(1)),$(shell $(SCRIPT_DIR)/package-metadata.pl version_filter $(KERNEL_PATCHVER) $(1)),$(1))
261 # 1: priority (optional)
265 $(if $(1),$(1),0) $(if $(3),1,0) $(call version_filter,$(2))
271 $(call AutoLoad,,$(1),$(2))
274 version_field=$(if $(word $(1),$(2)),$(word $(1),$(2)),0)
275 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)) ))
280 kernel_version_cmp=$(shell [ $(call kernel_version_merge,$(call split_version,$(2))) $(1) $(call kernel_version_merge,$(call split_version,$(3))) ] && echo 1 )
283 CompareKernelPatchVer=$(if $(call kernel_version_cmp,-$(2),$(1),$(3)),1,0)
285 kernel_patchver_gt=$(call kernel_version_cmp,-gt,$(KERNEL_PATCHVER),$(1))
286 kernel_patchver_ge=$(call kernel_version_cmp,-ge,$(KERNEL_PATCHVER),$(1))
287 kernel_patchver_eq=$(call kernel_version_cmp,-eq,$(KERNEL_PATCHVER),$(1))
288 kernel_patchver_le=$(call kernel_version_cmp,-le,$(KERNEL_PATCHVER),$(1))
289 kernel_patchver_lt=$(call kernel_version_cmp,-lt,$(KERNEL_PATCHVER),$(1))