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review.blissroms.org / platform_vendor_bliss / c46b8fb43462b90a1b6d57301aca6371e8243003 / . / build / tasks / kernel.mk
blob: f7913c423f3f13dacb381ae0642aa41fa3d771d5 [file] [log] [blame]
Michael Bestas8d6c4372016-08-26 01:12:08 +0300[diff] [blame]1# Copyright (C) 2012 The CyanogenMod Project
2#
3# Licensed under the Apache License, Version 2.0 (the "License");
4# you may not use this file except in compliance with the License.
5# You may obtain a copy of the License at
6#
7# http://www.apache.org/licenses/LICENSE-2.0
8#
9# Unless required by applicable law or agreed to in writing, software
10# distributed under the License is distributed on an "AS IS" BASIS,
11# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12# See the License for the specific language governing permissions and
13# limitations under the License.
14
15
16# Android makefile to build kernel as a part of Android Build
17#
18# Configuration
19# =============
20#
21# These config vars are usually set in BoardConfig.mk:
22#
23# TARGET_KERNEL_SOURCE = Kernel source dir, optional, defaults
24# to kernel/$(TARGET_DEVICE_DIR)
25# TARGET_KERNEL_CONFIG = Kernel defconfig
26# TARGET_KERNEL_VARIANT_CONFIG = Variant defconfig, optional
27# TARGET_KERNEL_SELINUX_CONFIG = SELinux defconfig, optional
28# TARGET_KERNEL_ADDITIONAL_CONFIG = Additional defconfig, optional
29# TARGET_KERNEL_ARCH = Kernel Arch
30# TARGET_KERNEL_HEADER_ARCH = Optional Arch for kernel headers if
31# different from TARGET_KERNEL_ARCH
32# TARGET_USES_UNCOMPRESSED_KERNEL = 'true' if Kernel is uncompressed,
33# optional, defaults to false
34# TARGET_KERNEL_CROSS_COMPILE_PREFIX = Compiler prefix (e.g. arm-eabi-)
Michael Bestas1b5a1d62016-09-28 20:16:25 +0300[diff] [blame]35# defaults to arm-linux-androidkernel- for arm
36# aarch64-linux-androidkernel- for arm64
37# x86_64-linux-androidkernel- for x86
Michael Bestas8d6c4372016-08-26 01:12:08 +0300[diff] [blame]38#
39# BOARD_KERNEL_IMAGE_NAME = Built image name, optional,
40# defaults to Image.gz on arm64
41# defaults to Image if TARGET_USES_UNCOMPRESSED_KERNEL
42# defaults to zImage otherwise
43#
44# KERNEL_TOOLCHAIN_PREFIX = Overrides TARGET_KERNEL_CROSS_COMPILE_PREFIX,
45# Set this var in shell to override
46# toolchain specified in BoardConfig.mk
47# KERNEL_TOOLCHAIN = Path to toolchain, if unset, assumes
48# TARGET_KERNEL_CROSS_COMPILE_PREFIX
49# is in PATH
50# USE_CCACHE = Enable ccache (global Android flag)
51#
52# NEED_KERNEL_MODULE_ROOT = Optional, if true, install kernel
53# modules in root instead of system
54
55
56TARGET_AUTO_KDIR := $(shell echo $(TARGET_DEVICE_DIR) | sed -e 's/^device/kernel/g')
57
58## Externally influenced variables
59# kernel location - optional, defaults to kernel/<vendor>/<device>
60TARGET_KERNEL_SOURCE ?= $(TARGET_AUTO_KDIR)
61KERNEL_SRC := $(TARGET_KERNEL_SOURCE)
62# kernel configuration - mandatory
63KERNEL_DEFCONFIG := $(TARGET_KERNEL_CONFIG)
64VARIANT_DEFCONFIG := $(TARGET_KERNEL_VARIANT_CONFIG)
65SELINUX_DEFCONFIG := $(TARGET_KERNEL_SELINUX_CONFIG)
66
67## Internal variables
68KERNEL_OUT := $(TARGET_OUT_INTERMEDIATES)/KERNEL_OBJ
69KERNEL_CONFIG := $(KERNEL_OUT)/.config
70KERNEL_OUT_STAMP := $(KERNEL_OUT)/.mkdir_stamp
71
72TARGET_KERNEL_ARCH := $(strip $(TARGET_KERNEL_ARCH))
73ifeq ($(TARGET_KERNEL_ARCH),)
74KERNEL_ARCH := $(TARGET_ARCH)
75else
76KERNEL_ARCH := $(TARGET_KERNEL_ARCH)
77endif
78
79ifeq ($(KERNEL_ARCH),x86_64)
80KERNEL_DEFCONFIG_ARCH := x86
81else
82KERNEL_DEFCONFIG_ARCH := $(KERNEL_ARCH)
83endif
84KERNEL_DEFCONFIG_SRC := $(KERNEL_SRC)/arch/$(KERNEL_DEFCONFIG_ARCH)/configs/$(KERNEL_DEFCONFIG)
85
86TARGET_KERNEL_HEADER_ARCH := $(strip $(TARGET_KERNEL_HEADER_ARCH))
87ifeq ($(TARGET_KERNEL_HEADER_ARCH),)
88KERNEL_HEADER_ARCH := $(KERNEL_ARCH)
89else
90KERNEL_HEADER_ARCH := $(TARGET_KERNEL_HEADER_ARCH)
91endif
92
93KERNEL_HEADER_DEFCONFIG := $(strip $(KERNEL_HEADER_DEFCONFIG))
94ifeq ($(KERNEL_HEADER_DEFCONFIG),)
95KERNEL_HEADER_DEFCONFIG := $(KERNEL_DEFCONFIG)
96endif
97
98
99ifneq ($(BOARD_KERNEL_IMAGE_NAME),)
100 TARGET_PREBUILT_INT_KERNEL_TYPE := $(BOARD_KERNEL_IMAGE_NAME)
101else
102 ifeq ($(TARGET_USES_UNCOMPRESSED_KERNEL),true)
103 TARGET_PREBUILT_INT_KERNEL_TYPE := Image
104 else
105 ifeq ($(KERNEL_ARCH),arm64)
106 TARGET_PREBUILT_INT_KERNEL_TYPE := Image.gz
107 else
108 TARGET_PREBUILT_INT_KERNEL_TYPE := zImage
109 endif
110 endif
Rashed Abdel-Tawabc46b8fb2017-01-10 02:43:10 -0500[diff] [blame^]111 ifeq ($(TARGET_KERNEL_APPEND_DTB),true)
112 TARGET_PREBUILT_INT_KERNEL_TYPE := $(TARGET_PREBUILT_INT_KERNEL_TYPE)-dtb
113 endif
Michael Bestas8d6c4372016-08-26 01:12:08 +0300[diff] [blame]114endif
115
116TARGET_PREBUILT_INT_KERNEL := $(KERNEL_OUT)/arch/$(KERNEL_ARCH)/boot/$(TARGET_PREBUILT_INT_KERNEL_TYPE)
117
118# Clear this first to prevent accidental poisoning from env
119MAKE_FLAGS :=
120
121ifeq ($(KERNEL_ARCH),arm64)
122 # Avoid "unsupported RELA relocation: 311" errors (R_AARCH64_ADR_GOT_PAGE)
123 MAKE_FLAGS += CFLAGS_MODULE="-fno-pic"
124 ifeq ($(TARGET_ARCH),arm)
125 KERNEL_CONFIG_OVERRIDE := CONFIG_ANDROID_BINDER_IPC_32BIT=y
126 endif
127endif
128
129ifneq ($(TARGET_KERNEL_ADDITIONAL_CONFIG),)
130KERNEL_ADDITIONAL_CONFIG := $(TARGET_KERNEL_ADDITIONAL_CONFIG)
131KERNEL_ADDITIONAL_CONFIG_SRC := $(KERNEL_SRC)/arch/$(KERNEL_ARCH)/configs/$(KERNEL_ADDITIONAL_CONFIG)
132 ifeq ("$(wildcard $(KERNEL_ADDITIONAL_CONFIG_SRC))","")
133 $(warning TARGET_KERNEL_ADDITIONAL_CONFIG '$(TARGET_KERNEL_ADDITIONAL_CONFIG)' doesn't exist)
134 KERNEL_ADDITIONAL_CONFIG_SRC := /dev/null
135 endif
136else
137 KERNEL_ADDITIONAL_CONFIG_SRC := /dev/null
138endif
139
140## Do be discontinued in a future version. Notify builder about target
141## kernel format requirement
142ifeq ($(BOARD_KERNEL_IMAGE_NAME),)
143ifeq ($(BOARD_USES_UBOOT),true)
144 $(error "Please set BOARD_KERNEL_IMAGE_NAME to uImage")
145else ifeq ($(BOARD_USES_UNCOMPRESSED_BOOT),true)
146 $(error "Please set BOARD_KERNEL_IMAGE_NAME to Image")
147endif
148endif
149
150ifeq "$(wildcard $(KERNEL_SRC) )" ""
151 ifneq ($(TARGET_PREBUILT_KERNEL),)
152 HAS_PREBUILT_KERNEL := true
153 NEEDS_KERNEL_COPY := true
154 else
155 $(foreach cf,$(PRODUCT_COPY_FILES), \
156 $(eval _src := $(call word-colon,1,$(cf))) \
157 $(eval _dest := $(call word-colon,2,$(cf))) \
158 $(ifeq kernel,$(_dest), \
159 $(eval HAS_PREBUILT_KERNEL := true)))
160 endif
161
162 ifneq ($(HAS_PREBUILT_KERNEL),)
163 $(warning ***************************************************************)
164 $(warning * Using prebuilt kernel binary instead of source *)
165 $(warning * THIS IS DEPRECATED, AND WILL BE DISCONTINUED *)
166 $(warning * Please configure your device to download the kernel *)
167 $(warning * source repository to $(KERNEL_SRC))
168 $(warning * See http://wiki.cyanogenmod.org/w/Doc:_integrated_kernel_building)
169 $(warning * for more information *)
170 $(warning ***************************************************************)
171 FULL_KERNEL_BUILD := false
172 KERNEL_BIN := $(TARGET_PREBUILT_KERNEL)
173 else
174 $(warning ***************************************************************)
175 $(warning * *)
176 $(warning * No kernel source found, and no fallback prebuilt defined. *)
177 $(warning * Please make sure your device is properly configured to *)
178 $(warning * download the kernel repository to $(KERNEL_SRC))
179 $(warning * and add the TARGET_KERNEL_CONFIG variable to BoardConfig.mk *)
180 $(warning * *)
181 $(warning * As an alternative, define the TARGET_PREBUILT_KERNEL *)
182 $(warning * variable with the path to the prebuilt binary kernel image *)
183 $(warning * in your BoardConfig.mk file *)
184 $(warning * *)
185 $(warning ***************************************************************)
186 $(error "NO KERNEL")
187 endif
188else
189 NEEDS_KERNEL_COPY := true
190 ifeq ($(TARGET_KERNEL_CONFIG),)
191 $(warning **********************************************************)
192 $(warning * Kernel source found, but no configuration was defined *)
193 $(warning * Please add the TARGET_KERNEL_CONFIG variable to your *)
194 $(warning * BoardConfig.mk file *)
195 $(warning **********************************************************)
196 # $(error "NO KERNEL CONFIG")
197 else
198 #$(info Kernel source found, building it)
199 FULL_KERNEL_BUILD := true
200 KERNEL_BIN := $(TARGET_PREBUILT_INT_KERNEL)
201 endif
202endif
203
204ifeq ($(FULL_KERNEL_BUILD),true)
205
206KERNEL_HEADERS_INSTALL := $(KERNEL_OUT)/usr
207KERNEL_HEADERS_INSTALL_STAMP := $(KERNEL_OUT)/.headers_install_stamp
208
209ifeq ($(NEED_KERNEL_MODULE_ROOT),true)
210KERNEL_MODULES_INSTALL := root
211KERNEL_MODULES_OUT := $(TARGET_ROOT_OUT)/lib/modules
212else
213KERNEL_MODULES_INSTALL := system
214KERNEL_MODULES_OUT := $(TARGET_OUT)/lib/modules
215endif
216
217TARGET_KERNEL_CROSS_COMPILE_PREFIX := $(strip $(TARGET_KERNEL_CROSS_COMPILE_PREFIX))
218ifneq ($(TARGET_KERNEL_CROSS_COMPILE_PREFIX),)
219KERNEL_TOOLCHAIN_PREFIX ?= $(TARGET_KERNEL_CROSS_COMPILE_PREFIX)
Zhao Wei Liew9a175032016-11-10 20:02:58 +0800[diff] [blame]220else ifeq ($(KERNEL_ARCH),arm64)
Michael Bestas1b5a1d62016-09-28 20:16:25 +0300[diff] [blame]221KERNEL_TOOLCHAIN_PREFIX ?= aarch64-linux-androidkernel-
Zhao Wei Liew9a175032016-11-10 20:02:58 +0800[diff] [blame]222else ifeq ($(KERNEL_ARCH),arm)
Michael Bestas1b5a1d62016-09-28 20:16:25 +0300[diff] [blame]223KERNEL_TOOLCHAIN_PREFIX ?= arm-linux-androidkernel-
Zhao Wei Liew9a175032016-11-10 20:02:58 +0800[diff] [blame]224else ifeq ($(KERNEL_ARCH),x86)
Michael Bestas1b5a1d62016-09-28 20:16:25 +0300[diff] [blame]225KERNEL_TOOLCHAIN_PREFIX ?= x86_64-linux-androidkernel-
Michael Bestas8d6c4372016-08-26 01:12:08 +0300[diff] [blame]226endif
227
228ifeq ($(KERNEL_TOOLCHAIN),)
229KERNEL_TOOLCHAIN_PATH := $(KERNEL_TOOLCHAIN_PREFIX)
230else
231ifneq ($(KERNEL_TOOLCHAIN_PREFIX),)
232KERNEL_TOOLCHAIN_PATH := $(KERNEL_TOOLCHAIN)/$(KERNEL_TOOLCHAIN_PREFIX)
233endif
234endif
235
236ifneq ($(USE_CCACHE),)
237 # Detect if the system already has ccache installed to use instead of the prebuilt
238 ccache := $(shell which ccache)
239
240 ifeq ($(ccache),)
241 ccache := $(ANDROID_BUILD_TOP)/prebuilts/misc/$(HOST_PREBUILT_TAG)/ccache/ccache
242 # Check that the executable is here.
243 ccache := $(strip $(wildcard $(ccache)))
244 endif
245endif
246
247KERNEL_CROSS_COMPILE := CROSS_COMPILE="$(ccache) $(KERNEL_TOOLCHAIN_PATH)"
248ccache =
249
250define mv-modules
251 mdpath=`find $(KERNEL_MODULES_OUT) -type f -name modules.order`;\
252 if [ "$$mdpath" != "" ];then\
253 mpath=`dirname $$mdpath`;\
254 ko=`find $$mpath/kernel -type f -name *.ko`;\
255 for i in $$ko; do $(KERNEL_TOOLCHAIN_PATH)strip --strip-unneeded $$i;\
256 mv $$i $(KERNEL_MODULES_OUT)/; done;\
257 fi
258endef
259
260define clean-module-folder
261 mdpath=`find $(KERNEL_MODULES_OUT) -type f -name modules.order`;\
262 if [ "$$mdpath" != "" ];then\
263 mpath=`dirname $$mdpath`; rm -rf $$mpath;\
264 fi
265endef
266
267ifeq ($(HOST_OS),darwin)
268 MAKE_FLAGS += C_INCLUDE_PATH=$(ANDROID_BUILD_TOP)/external/elfutils/libelf/
269endif
270
271ifeq ($(TARGET_KERNEL_MODULES),)
272 TARGET_KERNEL_MODULES := no-external-modules
273endif
274
275$(KERNEL_OUT_STAMP):
276 $(hide) mkdir -p $(KERNEL_OUT)
277 $(hide) rm -rf $(KERNEL_MODULES_OUT)
278 $(hide) mkdir -p $(KERNEL_MODULES_OUT)
279 $(hide) touch $@
280
281KERNEL_ADDITIONAL_CONFIG_OUT := $(KERNEL_OUT)/.additional_config
282
283.PHONY: force_additional_config
284$(KERNEL_ADDITIONAL_CONFIG_OUT): force_additional_config
285 $(hide) cmp -s $(KERNEL_ADDITIONAL_CONFIG_SRC) $@ || cp $(KERNEL_ADDITIONAL_CONFIG_SRC) $@;
286
287$(KERNEL_CONFIG): $(KERNEL_OUT_STAMP) $(KERNEL_DEFCONFIG_SRC) $(KERNEL_ADDITIONAL_CONFIG_OUT)
288 @echo "Building Kernel Config"
289 $(MAKE) $(MAKE_FLAGS) -C $(KERNEL_SRC) O=$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) $(KERNEL_CROSS_COMPILE) VARIANT_DEFCONFIG=$(VARIANT_DEFCONFIG) SELINUX_DEFCONFIG=$(SELINUX_DEFCONFIG) $(KERNEL_DEFCONFIG)
290 $(hide) if [ ! -z "$(KERNEL_CONFIG_OVERRIDE)" ]; then \
291 echo "Overriding kernel config with '$(KERNEL_CONFIG_OVERRIDE)'"; \
292 echo $(KERNEL_CONFIG_OVERRIDE) >> $(KERNEL_OUT)/.config; \
293 $(MAKE) -C $(KERNEL_SRC) O=$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) $(KERNEL_CROSS_COMPILE) oldconfig; fi
Sam Mortimer72e91752016-10-01 09:56:52 -0700[diff] [blame]294 # Create defconfig build artifact
295 $(hide) $(MAKE) -C $(KERNEL_SRC) O=$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) $(KERNEL_CROSS_COMPILE) savedefconfig
Michael Bestas8d6c4372016-08-26 01:12:08 +0300[diff] [blame]296 $(hide) if [ ! -z "$(KERNEL_ADDITIONAL_CONFIG)" ]; then \
297 echo "Using additional config '$(KERNEL_ADDITIONAL_CONFIG)'"; \
298 $(KERNEL_SRC)/scripts/kconfig/merge_config.sh -m -O $(KERNEL_OUT) $(KERNEL_OUT)/.config $(KERNEL_SRC)/arch/$(KERNEL_ARCH)/configs/$(KERNEL_ADDITIONAL_CONFIG); \
299 $(MAKE) -C $(KERNEL_SRC) O=$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) $(KERNEL_CROSS_COMPILE) KCONFIG_ALLCONFIG=$(KERNEL_OUT)/.config alldefconfig; fi
300
301TARGET_KERNEL_BINARIES: $(KERNEL_OUT_STAMP) $(KERNEL_CONFIG) $(KERNEL_HEADERS_INSTALL_STAMP)
302 @echo "Building Kernel"
303 $(MAKE) $(MAKE_FLAGS) -C $(KERNEL_SRC) O=$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) $(KERNEL_CROSS_COMPILE) $(TARGET_PREBUILT_INT_KERNEL_TYPE)
304 $(hide) if grep -q 'CONFIG_OF=y' $(KERNEL_CONFIG) ; \
305 then \
306 echo "Building DTBs" ; \
307 $(MAKE) $(MAKE_FLAGS) -C $(KERNEL_SRC) O=$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) $(KERNEL_CROSS_COMPILE) dtbs ; \
308 else \
309 echo "DTBs not enabled" ; \
310 fi ;
311 $(hide) if grep -q 'CONFIG_MODULES=y' $(KERNEL_CONFIG) ; \
312 then \
313 echo "Building Kernel Modules" ; \
314 $(MAKE) $(MAKE_FLAGS) -C $(KERNEL_SRC) O=$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) $(KERNEL_CROSS_COMPILE) modules && \
315 $(MAKE) $(MAKE_FLAGS) -C $(KERNEL_SRC) O=$(KERNEL_OUT) INSTALL_MOD_PATH=../../$(KERNEL_MODULES_INSTALL) ARCH=$(KERNEL_ARCH) $(KERNEL_CROSS_COMPILE) modules_install && \
316 $(mv-modules) && \
317 $(clean-module-folder) ; \
318 else \
319 echo "Kernel Modules not enabled" ; \
320 fi ;
321
322
323$(TARGET_KERNEL_MODULES): TARGET_KERNEL_BINARIES
324
325$(TARGET_PREBUILT_INT_KERNEL): $(TARGET_KERNEL_MODULES)
Michael Bestas8d6c4372016-08-26 01:12:08 +0300[diff] [blame]326
327$(KERNEL_HEADERS_INSTALL_STAMP): $(KERNEL_OUT_STAMP) $(KERNEL_CONFIG)
328 @echo "Building Kernel Headers"
329 $(hide) if [ ! -z "$(KERNEL_HEADER_DEFCONFIG)" ]; then \
330 rm -f ../$(KERNEL_CONFIG); \
331 $(MAKE) $(MAKE_FLAGS) -C $(KERNEL_SRC) O=$(KERNEL_OUT) ARCH=$(KERNEL_HEADER_ARCH) $(KERNEL_CROSS_COMPILE) VARIANT_DEFCONFIG=$(VARIANT_DEFCONFIG) SELINUX_DEFCONFIG=$(SELINUX_DEFCONFIG) $(KERNEL_HEADER_DEFCONFIG); \
332 $(MAKE) $(MAKE_FLAGS) -C $(KERNEL_SRC) O=$(KERNEL_OUT) ARCH=$(KERNEL_HEADER_ARCH) $(KERNEL_CROSS_COMPILE) headers_install; fi
333 $(hide) if [ "$(KERNEL_HEADER_DEFCONFIG)" != "$(KERNEL_DEFCONFIG)" ]; then \
334 echo "Used a different defconfig for header generation"; \
335 rm -f ../$(KERNEL_CONFIG); \
336 $(MAKE) $(MAKE_FLAGS) -C $(KERNEL_SRC) O=$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) $(KERNEL_CROSS_COMPILE) VARIANT_DEFCONFIG=$(VARIANT_DEFCONFIG) SELINUX_DEFCONFIG=$(SELINUX_DEFCONFIG) $(KERNEL_DEFCONFIG); fi
337 $(hide) if [ ! -z "$(KERNEL_CONFIG_OVERRIDE)" ]; then \
338 echo "Overriding kernel config with '$(KERNEL_CONFIG_OVERRIDE)'"; \
339 echo $(KERNEL_CONFIG_OVERRIDE) >> $(KERNEL_OUT)/.config; \
340 $(MAKE) $(MAKE_FLAGS) -C $(KERNEL_SRC) O=$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) $(KERNEL_CROSS_COMPILE) oldconfig; fi
341 $(hide) if [ ! -z "$(KERNEL_ADDITIONAL_CONFIG)" ]; then \
342 echo "Using additional config '$(KERNEL_ADDITIONAL_CONFIG)'"; \
343 $(KERNEL_SRC)/scripts/kconfig/merge_config.sh -m -O $(KERNEL_OUT) $(KERNEL_OUT)/.config $(KERNEL_SRC)/arch/$(KERNEL_ARCH)/configs/$(KERNEL_ADDITIONAL_CONFIG); \
344 $(MAKE) $(MAKE_FLAGS) -C $(KERNEL_SRC) O=$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) $(KERNEL_CROSS_COMPILE) KCONFIG_ALLCONFIG=$(KERNEL_OUT)/.config alldefconfig; fi
345 $(hide) touch $@
346
347# provide this rule because there are dependencies on this throughout the repo
348$(KERNEL_HEADERS_INSTALL): $(KERNEL_HEADERS_INSTALL_STAMP)
349
350kerneltags: $(KERNEL_OUT_STAMP) $(KERNEL_CONFIG)
351 $(MAKE) -C $(KERNEL_SRC) O=$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) $(KERNEL_CROSS_COMPILE) tags
352
353kernelconfig: KERNELCONFIG_MODE := menuconfig
354kernelxconfig: KERNELCONFIG_MODE := xconfig
355kernelxconfig kernelconfig: $(KERNEL_OUT_STAMP)
356 $(MAKE) $(MAKE_FLAGS) -C $(KERNEL_SRC) O=$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) $(KERNEL_CROSS_COMPILE) $(KERNEL_DEFCONFIG)
357 env KCONFIG_NOTIMESTAMP=true \
358 $(MAKE) -C $(KERNEL_SRC) O=$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) $(KERNEL_CROSS_COMPILE) $(KERNELCONFIG_MODE)
359 env KCONFIG_NOTIMESTAMP=true \
360 $(MAKE) -C $(KERNEL_SRC) O=$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) $(KERNEL_CROSS_COMPILE) savedefconfig
361 cp $(KERNEL_OUT)/defconfig $(KERNEL_DEFCONFIG_SRC)
362
363alldefconfig: $(KERNEL_OUT_STAMP)
364 env KCONFIG_NOTIMESTAMP=true \
365 $(MAKE) -C $(KERNEL_SRC) O=$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) $(KERNEL_CROSS_COMPILE) alldefconfig
366
367endif # FULL_KERNEL_BUILD
368
369## Install it
370
371ifeq ($(NEEDS_KERNEL_COPY),true)
372file := $(INSTALLED_KERNEL_TARGET)
373ALL_PREBUILT += $(file)
374$(file) : $(KERNEL_BIN) | $(ACP)
375 $(transform-prebuilt-to-target)
376
377ALL_PREBUILT += $(INSTALLED_KERNEL_TARGET)
378endif
379
380.PHONY: kernel
381kernel: $(INSTALLED_KERNEL_TARGET)