1 # SPDX-License-Identifier: GPL-2.0-only
3 # Copyright (C) 2006-2020 OpenWrt.org
5 ifneq ($(filter check,$(MAKECMDGOALS
)),)
10 ifneq ($(SOURCE_DATE_EPOCH
),)
12 KBUILD_BUILD_TIMESTAMP
:=$(shell perl
-e
'print scalar gmtime($(SOURCE_DATE_EPOCH))')
16 ifeq ($(__target_inc
),)
18 include $(INCLUDE_DIR
)/target.mk
25 LINUX_VERSION?
=<LINUX_VERSION
>
26 LINUX_VERMAGIC?
=<LINUX_VERMAGIC
>
28 ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN
),)
29 export GCC_HONOUR_COPTS
=s
34 ifneq (,$(findstring uml
,$(BOARD
)))
38 KERNEL_CC?
=$(TARGET_CC
)
39 KERNEL_CROSS?
=$(TARGET_CROSS
)
42 ifeq ($(TARGET_BUILD
),1)
43 PATCH_DIR ?
= $(CURDIR
)/patches
$(if
$(wildcard .
/patches-
$(KERNEL_PATCHVER
)),-$(KERNEL_PATCHVER
))
44 FILES_DIR ?
= $(foreach dir,$(wildcard $(CURDIR
)/files
$(CURDIR
)/files-
$(KERNEL_PATCHVER
)),"$(dir)")
46 KERNEL_BUILD_DIR ?
= $(BUILD_DIR
)/linux-
$(BOARD
)$(if
$(SUBTARGET
),_
$(SUBTARGET
))
47 LINUX_DIR ?
= $(KERNEL_BUILD_DIR
)/linux-
$(LINUX_VERSION
)
49 LINUX_VERMAGIC
:=$(strip $(shell cat
$(LINUX_DIR
)/.vermagic
2>/dev
/null
))
50 LINUX_VERMAGIC
:=$(if
$(LINUX_VERMAGIC
),$(LINUX_VERMAGIC
),unknown
)
52 LINUX_UNAME_VERSION
:=$(KERNEL_BASE
)
53 ifneq ($(findstring -rc
,$(LINUX_VERSION
)),)
54 LINUX_UNAME_VERSION
:=$(LINUX_UNAME_VERSION
)-$(strip $(lastword
$(subst -, ,$(LINUX_VERSION
))))
57 LINUX_KERNEL
:=$(KERNEL_BUILD_DIR
)/vmlinux
59 ifneq (,$(findstring -rc
,$(LINUX_VERSION
)))
60 LINUX_SOURCE
:=linux-
$(LINUX_VERSION
).
tar.gz
62 LINUX_SOURCE
:=linux-
$(LINUX_VERSION
).
tar.xz
65 ifneq (,$(findstring -rc
,$(LINUX_VERSION
)))
66 LINUX_SITE
:=https
://git.kernel.org
/torvalds
/t
67 else ifeq ($(call qstrip
,$(CONFIG_EXTERNAL_KERNEL_TREE
))$(call qstrip
,$(CONFIG_KERNEL_GIT_CLONE_URI
)),)
68 LINUX_SITE
:=@KERNEL
/linux
/kernel
/v
$(word 1,$(subst .
, ,$(KERNEL_BASE
))).x
70 LINUX_UNAME_VERSION
:=$(strip $(shell cat
$(LINUX_DIR
)/include/config
/kernel.release
2>/dev
/null
))
73 MODULES_SUBDIR
:=lib
/modules
/$(LINUX_UNAME_VERSION
)
74 TARGET_MODULES_DIR
:=$(LINUX_TARGET_DIR
)/$(MODULES_SUBDIR
)
76 ifneq ($(TARGET_BUILD
),1)
77 PKG_BUILD_DIR ?
= $(KERNEL_BUILD_DIR
)/$(if
$(BUILD_VARIANT
),$(PKG_NAME
)-$(BUILD_VARIANT
)/)$(PKG_NAME
)$(if
$(PKG_VERSION
),-$(PKG_VERSION
))
81 ifneq (,$(findstring uml
,$(BOARD
)))
83 else ifneq (,$(findstring $(ARCH
) , aarch64 aarch64_be
))
85 else ifneq (,$(findstring $(ARCH
) , arceb
))
87 else ifneq (,$(findstring $(ARCH
) , armeb
))
89 else ifneq (,$(findstring $(ARCH
) , mipsel mips64 mips64el
))
91 else ifneq (,$(findstring $(ARCH
) , powerpc64
))
92 LINUX_KARCH
:= powerpc
93 else ifneq (,$(findstring $(ARCH
) , riscv64
))
95 else ifneq (,$(findstring $(ARCH
) , sh2 sh3 sh4
))
97 else ifneq (,$(findstring $(ARCH
) , i386 x86_64
))
100 LINUX_KARCH
:= $(ARCH
)
103 KERNEL_MAKE
= $(MAKE
) $(KERNEL_MAKEOPTS
)
105 KERNEL_MAKE_FLAGS
= \
106 KCFLAGS
="$(call iremap,$(BUILD_DIR),$(notdir $(BUILD_DIR))) $(filter-out -fno-plt,$(call qstrip,$(CONFIG_EXTRA_OPTIMIZATION))) $(call qstrip,$(CONFIG_KERNEL_CFLAGS))" \
107 HOSTCFLAGS
="$(HOST_CFLAGS) -Wall -Wmissing-prototypes -Wstrict-prototypes" \
108 CROSS_COMPILE
="$(KERNEL_CROSS)" \
109 ARCH
="$(LINUX_KARCH)" \
111 KBUILD_BUILD_USER
="$(call qstrip,$(CONFIG_KERNEL_BUILD_USER))" \
112 KBUILD_BUILD_HOST
="$(call qstrip,$(CONFIG_KERNEL_BUILD_DOMAIN))" \
113 KBUILD_BUILD_TIMESTAMP
="$(KBUILD_BUILD_TIMESTAMP)" \
114 KBUILD_BUILD_VERSION
="0" \
115 KBUILD_HOSTLDFLAGS
="-L$(STAGING_DIR_HOST)/lib" \
116 CONFIG_SHELL
="$(BASH)" \
117 $(if
$(findstring c
,$(OPENWRT_VERBOSE
)),V
=1,V
='') \
118 $(if
$(PKG_BUILD_ID
),LDFLAGS_MODULE
=--build-id
=0x
$(PKG_BUILD_ID
)) \
120 $(if
$(__package_mk
),KBUILD_EXTRA_SYMBOLS
="$(wildcard $(PKG_SYMVERS_DIR)/*.symvers)")
122 KERNEL_NOSTDINC_FLAGS
= \
123 -nostdinc
$(if
$(DUMP
),, -isystem
$(shell $(TARGET_CC
) -print-file-name
=include))
125 ifeq ($(call qstrip
,$(CONFIG_EXTERNAL_KERNEL_TREE
))$(call qstrip
,$(CONFIG_KERNEL_GIT_CLONE_URI
)),)
126 KERNEL_MAKE_FLAGS
+= \
127 KERNELRELEASE
=$(LINUX_VERSION
)
130 ifneq ($(HOST_OS
),Linux
)
131 KERNEL_MAKE_FLAGS
+= CONFIG_STACK_VALIDATION
=
132 export SKIP_STACK_VALIDATION
:=1
135 KERNEL_MAKEOPTS
= -C
$(LINUX_DIR
) $(KERNEL_MAKE_FLAGS
)
137 ifdef CONFIG_USE_SPARSE
138 KERNEL_MAKEOPTS
+= C
=1 CHECK
=$(STAGING_DIR_HOST
)/bin
/sparse
141 PKG_EXTMOD_SUBDIRS ?
= .
143 PKG_SYMVERS_DIR
= $(KERNEL_BUILD_DIR
)/symvers
145 define collect_module_symvers
146 for subdir in
$(PKG_EXTMOD_SUBDIRS
); do \
147 realdir
=$$$$(readlink
-f
$(PKG_BUILD_DIR
)); \
148 grep
-F
$(PKG_BUILD_DIR
) $(PKG_BUILD_DIR
)/$$$$subdir/Module.symvers
>> $(PKG_BUILD_DIR
)/Module.symvers.tmp
; \
149 [ "$(PKG_BUILD_DIR)" = "$$$$realdir" ] || \
150 grep
-F
$$$$realdir $(PKG_BUILD_DIR
)/$$$$subdir/Module.symvers
>> $(PKG_BUILD_DIR
)/Module.symvers.tmp
; \
152 sort -u
$(PKG_BUILD_DIR
)/Module.symvers.tmp
> $(PKG_BUILD_DIR
)/Module.symvers
; \
153 mkdir
-p
$(PKG_SYMVERS_DIR
); \
154 mv
$(PKG_BUILD_DIR
)/Module.symvers
$(PKG_SYMVERS_DIR
)/$(PKG_NAME
).symvers
157 define KernelPackage
/hooks
158 ifneq ($(PKG_NAME
),kernel
)
159 Hooks
/Compile
/Post
+= collect_module_symvers
161 define KernelPackage
/hooks
165 define KernelPackage
/Defaults
174 # 3: module priority prefix
175 # 4: required for boot
177 define ModuleAutoLoad
179 mkdir
-p
$(2)/etc
/modules.d
; \
180 ($(foreach mod
,$(5), \
181 echo
"$(mod)$(if $(MODPARAMS.$(mod)), $(MODPARAMS.$(mod)),$(if $(MODPARAMS), $(MODPARAMS)))"; )) > $(2)/etc
/modules.d
/$(3)$(1); \
183 mkdir
-p
$(2)/etc
/modules-boot.d
; \
184 ln
-sf ..
/modules.d
/$(3)$(1) $(2)/etc
/modules-boot.d
/;))
187 ifeq ($(DUMP
)$(TARGET_BUILD
),)
188 -include $(LINUX_DIR
)/.config
191 define KernelPackage
/depends
192 $(STAMP_BUILT
): $(LINUX_DIR
)/.config
193 define KernelPackage
/depends
199 $(eval
$(call Package
/Default
))
200 $(eval
$(call KernelPackage
/Defaults
))
201 $(eval
$(call KernelPackage
/$(1)))
202 $(eval
$(call KernelPackage
/$(1)/$(BOARD
)))
203 $(eval
$(call KernelPackage
/$(1)/$(BOARD
)/$(if
$(SUBTARGET
),$(SUBTARGET
),generic
)))
205 define Package
/kmod-
$(1)
208 CATEGORY
:=Kernel modules
209 DESCRIPTION
:=$(DESCRIPTION
)
210 EXTRA_DEPENDS
:=kernel
(=$(LINUX_VERSION
)-$(LINUX_RELEASE
)-$(LINUX_VERMAGIC
))
211 VERSION
:=$(LINUX_VERSION
)$(if
$(PKG_VERSION
),+$(PKG_VERSION
))-$(if
$(PKG_RELEASE
),$(PKG_RELEASE
),$(LINUX_RELEASE
))
212 PKGFLAGS
:=$(PKGFLAGS
)
213 $(call KernelPackage
/$(1))
214 $(call KernelPackage
/$(1)/$(BOARD
))
215 $(call KernelPackage
/$(1)/$(BOARD
)/$(if
$(SUBTARGET
),$(SUBTARGET
),generic
))
218 ifdef KernelPackage
/$(1)/conffiles
219 define Package
/kmod-
$(1)/conffiles
220 $(call KernelPackage
/$(1)/conffiles
)
224 ifdef KernelPackage
/$(1)/description
225 define Package
/kmod-
$(1)/description
226 $(call KernelPackage
/$(1)/description
)
230 ifdef KernelPackage
/$(1)/config
231 define Package
/kmod-
$(1)/config
232 $(call KernelPackage
/$(1)/config
)
236 $(call KernelPackage
/depends
)
237 $(call KernelPackage
/hooks
)
239 ifneq ($(if
$(filter-out %=y
%=n
%=m
,$(KCONFIG
)),$(filter m y
,$(foreach c
,$(call version_filter
,$(filter-out %=y
%=n
%=m
,$(KCONFIG
))),$($(c
)))),.
),)
240 define Package
/kmod-
$(1)/install
241 @for mod in
$$(call version_filter
,$$(FILES
)); do \
242 if grep
-q
"$$$$$$$${mod##$(LINUX_DIR)/}" "$(LINUX_DIR)/modules.builtin"; then \
243 echo
"NOTICE: module '$$$$$$$$mod' is built-in."; \
244 elif
[ -e
$$$$$$$$mod ]; then \
245 mkdir
-p
$$(1)/$(MODULES_SUBDIR
) ; \
246 $(CP
) -L
$$$$$$$$mod $$(1)/$(MODULES_SUBDIR
)/ ; \
248 echo
"ERROR: module '$$$$$$$$mod' is missing." >&2; \
252 $(call ModuleAutoLoad
,$(1),$$(1),$(filter-out 0-,$(word 1,$(AUTOLOAD
))-),$(filter-out 0,$(word 2,$(AUTOLOAD
))),$(sort $(wordlist
3,99,$(AUTOLOAD
))))
253 $(call KernelPackage
/$(1)/install,$$(1))
255 $(if
$(CONFIG_PACKAGE_kmod-
$(1)),
257 compile
: $(1)-disabled
259 @echo
"WARNING: kmod-$(1) is not available in the kernel config - generating empty package" >&2
261 define Package
/kmod-
$(1)/install
266 $$(eval
$$(call BuildPackage
,kmod-
$(1)))
268 $$(IPKG_kmod-
$(1)): $$(wildcard $$(call version_filter
,$$(FILES
)))
272 version_filter
=$(if
$(findstring @
,$(1)),$(shell $(SCRIPT_DIR
)/package-metadata.pl version_filter
$(KERNEL_PATCHVER
) $(1)),$(1))
274 # 1: priority (optional)
278 $(if
$(1),$(1),0) $(if
$(3),1,0) $(call version_filter
,$(2))
284 $(call AutoLoad
,,$(1),$(2))
287 version_field
=$(if
$(word $(1),$(2)),$(word $(1),$(2)),0)
288 kernel_version_merge
=$$(( ($(call version_field
,1,$(1)) << 24) + ($(call version_field
,2,$(1)) << 16) + ($(call version_field
,3,$(1)) << 8) + $(call version_field
,4,$(1)) ))
293 kernel_version_cmp
=$(shell [ $(call kernel_version_merge
,$(call split_version
,$(2))) $(1) $(call kernel_version_merge
,$(call split_version
,$(3))) ] && echo
1 )
296 CompareKernelPatchVer
=$(if
$(call kernel_version_cmp
,-$(2),$(1),$(3)),1,0)
298 kernel_patchver_gt
=$(call kernel_version_cmp
,-gt
,$(KERNEL_PATCHVER
),$(1))
299 kernel_patchver_ge
=$(call kernel_version_cmp
,-ge
,$(KERNEL_PATCHVER
),$(1))
300 kernel_patchver_eq
=$(call kernel_version_cmp
,-eq
,$(KERNEL_PATCHVER
),$(1))
301 kernel_patchver_le
=$(call kernel_version_cmp
,-le
,$(KERNEL_PATCHVER
),$(1))
302 kernel_patchver_lt
=$(call kernel_version_cmp
,-lt
,$(KERNEL_PATCHVER
),$(1))