This repository has been archived by the owner on Jul 11, 2021. It is now read-only.
forked from sonyxperiadev/kernel
-
Notifications
You must be signed in to change notification settings - Fork 2
/
Android.mk
258 lines (217 loc) · 9.41 KB
/
Android.mk
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
# Copyright (C) 2012 The CyanogenMod Project
# Copyright (C) 2015 Chirayu Desai
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# Android makefile to build kernel as a part of Android Build
ifeq ($(BUILD_KERNEL),true)
ifeq ($(PRODUCT_PLATFORM_SOD),true)
ifeq ($(SOMC_KERNEL_VERSION),4.9)
KERNEL_SRC := $(call my-dir)
## Internal variables
ifeq ($(OUT_DIR),out)
KERNEL_OUT := $(shell pwd)/$(TARGET_OUT_INTERMEDIATES)/KERNEL_OBJ
else
KERNEL_OUT := $(TARGET_OUT_INTERMEDIATES)/KERNEL_OBJ
endif
KERNEL_CONFIG := $(KERNEL_OUT)/.config
KERNEL_OUT_STAMP := $(KERNEL_OUT)/.mkdir_stamp
TARGET_KERNEL_ARCH := $(strip $(TARGET_KERNEL_ARCH))
ifeq ($(TARGET_KERNEL_ARCH),)
KERNEL_ARCH := $(TARGET_ARCH)
else
KERNEL_ARCH := $(TARGET_KERNEL_ARCH)
endif
# kernel configuration - mandatory:
TARGET_KERNEL_CONFIG ?= $(notdir $(wildcard $(KERNEL_SRC)/arch/$(KERNEL_ARCH)/configs/aosp_*_$(TARGET_DEVICE)_defconfig))
KERNEL_DEFCONFIG := $(TARGET_KERNEL_CONFIG)
KERNEL_DEFCONFIG_ARCH := $(KERNEL_ARCH)
KERNEL_DEFCONFIG_SRC := $(KERNEL_SRC)/arch/$(KERNEL_DEFCONFIG_ARCH)/configs/$(KERNEL_DEFCONFIG)
TARGET_KERNEL_HEADER_ARCH := $(strip $(TARGET_KERNEL_HEADER_ARCH))
ifeq ($(TARGET_KERNEL_HEADER_ARCH),)
KERNEL_HEADER_ARCH := $(KERNEL_ARCH)
else
KERNEL_HEADER_ARCH := $(TARGET_KERNEL_HEADER_ARCH)
endif
KERNEL_HEADER_DEFCONFIG := $(strip $(KERNEL_HEADER_DEFCONFIG))
ifeq ($(KERNEL_HEADER_DEFCONFIG),)
KERNEL_HEADER_DEFCONFIG := $(KERNEL_DEFCONFIG)
endif
ifneq ($(BOARD_KERNEL_IMAGE_NAME),)
TARGET_PREBUILT_INT_KERNEL_TYPE := $(BOARD_KERNEL_IMAGE_NAME)
else
ifeq ($(TARGET_USES_UNCOMPRESSED_KERNEL),true)
TARGET_PREBUILT_INT_KERNEL_TYPE := Image
else
ifeq ($(KERNEL_ARCH),arm64)
TARGET_PREBUILT_INT_KERNEL_TYPE := Image.gz
else
TARGET_PREBUILT_INT_KERNEL_TYPE := zImage
endif
endif
endif
TARGET_PREBUILT_INT_KERNEL := $(KERNEL_OUT)/arch/$(KERNEL_ARCH)/boot/$(TARGET_PREBUILT_INT_KERNEL_TYPE)
KERNEL_DTB := $(KERNEL_OUT)/arch/$(KERNEL_ARCH)/boot/dts/qcom
KERNEL_DTB_OUT := $(PRODUCT_OUT)/dtbs
ifneq ($(BOARD_DTBO_IMAGE_NAME),)
TARGET_PREBUILT_INT_DTBO_NAME := $(BOARD_DTBO_IMAGE_NAME)
else
TARGET_PREBUILT_INT_DTBO_NAME := dtbo-$(KERNEL_ARCH).img
endif
KERNEL_DTBO_OUT := $(PRODUCT_OUT)/$(TARGET_PREBUILT_INT_DTBO_NAME)
# Clear this first to prevent accidental poisoning from env
MAKE_FLAGS :=
ifeq ($(KERNEL_ARCH),arm64)
# Avoid "unsupported RELA relocation: 311" errors (R_AARCH64_ADR_GOT_PAGE)
MAKE_FLAGS += CFLAGS_MODULE="-fno-pic"
ifeq ($(TARGET_ARCH),arm)
KERNEL_CONFIG_OVERRIDE := CONFIG_ANDROID_BINDER_IPC_32BIT=y
endif
endif
KERNEL_BIN := $(TARGET_PREBUILT_INT_KERNEL)
KERNEL_HEADERS_INSTALL := $(KERNEL_OUT)/usr
KERNEL_HEADERS_INSTALL_STAMP := $(KERNEL_OUT)/.headers_install_stamp
KERNEL_MODULES_INSTALL := system
KERNEL_MODULES_OUT := $(TARGET_OUT)/lib/modules
TARGET_KERNEL_CROSS_COMPILE_PREFIX := $(strip $(TARGET_KERNEL_CROSS_COMPILE_PREFIX))
ifeq ($(TARGET_KERNEL_CROSS_COMPILE_PREFIX),)
KERNEL_TOOLCHAIN_PREFIX ?= arm-eabi-
else
KERNEL_TOOLCHAIN_PREFIX ?= $(TARGET_KERNEL_CROSS_COMPILE_PREFIX)
endif
ifeq ($(KERNEL_TOOLCHAIN),)
KERNEL_TOOLCHAIN_PATH := $(KERNEL_TOOLCHAIN_PREFIX)
else
ifneq ($(KERNEL_TOOLCHAIN_PREFIX),)
KERNEL_TOOLCHAIN_PATH := $(KERNEL_TOOLCHAIN)/$(KERNEL_TOOLCHAIN_PREFIX)
endif
endif
ifneq ($(USE_CCACHE),)
ccache := $(shell pwd)/prebuilts/misc/$(HOST_PREBUILT_TAG)/ccache/ccache
# Check that the executable is here.
ccache := $(strip $(wildcard $(ccache)))
endif
KERNEL_CROSS_COMPILE := CROSS_COMPILE="$(ccache) $(KERNEL_TOOLCHAIN_PATH)"
ccache =
define mv-modules
mdpath=`find $(KERNEL_MODULES_OUT) -type f -name modules.order`;\
if [ "$$mdpath" != "" ];then\
mpath=`dirname $$mdpath`;\
ko=`find $$mpath/kernel -type f -name *.ko`;\
for i in $$ko; do $(KERNEL_TOOLCHAIN_PATH)strip --strip-unneeded $$i;\
mv $$i $(KERNEL_MODULES_OUT)/; done;\
fi
endef
define clean-module-folder
mdpath=`find $(KERNEL_MODULES_OUT) -type f -name modules.order`;\
if [ "$$mdpath" != "" ];then\
mpath=`dirname $$mdpath`; rm -rf $$mpath;\
fi
endef
ifeq ($(HOST_OS),darwin)
ifeq (1,$(filter 1,$(shell echo "$$(( $(PLATFORM_SDK_VERSION) >= 24 ))" )))
MAKE_FLAGS += C_INCLUDE_PATH=$(shell pwd)/external/elfutils/libelf/
else
MAKE_FLAGS += C_INCLUDE_PATH=$(shell pwd)/external/elfutils/src/libelf/
endif
endif
ifeq ($(TARGET_KERNEL_MODULES),)
TARGET_KERNEL_MODULES := no-external-modules
endif
$(KERNEL_OUT_STAMP):
$(hide) mkdir -p $(KERNEL_OUT)
$(hide) rm -rf $(KERNEL_MODULES_OUT)
$(hide) mkdir -p $(KERNEL_MODULES_OUT)
$(hide) rm -rf $(KERNEL_DTB_OUT)
$(hide) mkdir -p $(KERNEL_DTB_OUT)
$(hide) rm -rf $(KERNEL_DTBO_OUT)
$(hide) touch $@
$(KERNEL_CONFIG): $(KERNEL_OUT_STAMP) $(KERNEL_DEFCONFIG_SRC)
@echo "Building Kernel Config"
$(MAKE) $(MAKE_FLAGS) -C $(KERNEL_SRC) O=$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) $(KERNEL_CROSS_COMPILE) $(KERNEL_DEFCONFIG)
$(hide) if [ ! -z "$(KERNEL_CONFIG_OVERRIDE)" ]; then \
echo "Overriding kernel config with '$(KERNEL_CONFIG_OVERRIDE)'"; \
echo $(KERNEL_CONFIG_OVERRIDE) >> $(KERNEL_OUT)/.config; \
$(MAKE) -C $(KERNEL_SRC) O=$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) $(KERNEL_CROSS_COMPILE) oldconfig; fi
TARGET_KERNEL_BINARIES: $(KERNEL_OUT_STAMP) $(KERNEL_CONFIG) $(KERNEL_HEADERS_INSTALL_STAMP) | $(ACP)
@echo "Building Kernel"
$(MAKE) $(MAKE_FLAGS) -C $(KERNEL_SRC) O=$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) $(KERNEL_CROSS_COMPILE) $(TARGET_PREBUILT_INT_KERNEL_TYPE)
$(hide) if grep -q 'CONFIG_OF=y' $(KERNEL_CONFIG) ; \
then \
echo "Building DTBs" ; \
$(MAKE) $(MAKE_FLAGS) -C $(KERNEL_SRC) O=$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) $(KERNEL_CROSS_COMPILE) dtbs ; \
else \
echo "DTBs not enabled" ; \
fi ;
$(ACP) -fp $(KERNEL_DTB)/*.dtb $(KERNEL_DTB_OUT)/
$(hide) if grep -q 'CONFIG_MODULES=y' $(KERNEL_CONFIG) ; \
then \
echo "Building Kernel Modules" ; \
$(MAKE) $(MAKE_FLAGS) -C $(KERNEL_SRC) O=$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) $(KERNEL_CROSS_COMPILE) modules && \
$(MAKE) $(MAKE_FLAGS) -C $(KERNEL_SRC) O=$(KERNEL_OUT) INSTALL_MOD_PATH=../../$(KERNEL_MODULES_INSTALL) ARCH=$(KERNEL_ARCH) $(KERNEL_CROSS_COMPILE) modules_install && \
$(mv-modules) && \
$(clean-module-folder) ; \
else \
echo "Kernel Modules not enabled" ; \
fi ;
$(TARGET_KERNEL_MODULES): TARGET_KERNEL_BINARIES
$(TARGET_PREBUILT_INT_KERNEL): $(TARGET_KERNEL_MODULES)
$(mv-modules)
$(clean-module-folder)
$(KERNEL_HEADERS_INSTALL_STAMP): $(KERNEL_OUT_STAMP) $(KERNEL_CONFIG)
@echo "Building Kernel Headers"
$(hide) if [ ! -z "$(KERNEL_HEADER_DEFCONFIG)" ]; then \
rm -f ../$(KERNEL_CONFIG); \
$(MAKE) -C $(KERNEL_SRC) O=$(KERNEL_OUT) ARCH=$(KERNEL_HEADER_ARCH) $(KERNEL_CROSS_COMPILE) $(KERNEL_HEADER_DEFCONFIG); \
$(MAKE) -C $(KERNEL_SRC) O=$(KERNEL_OUT) ARCH=$(KERNEL_HEADER_ARCH) $(KERNEL_CROSS_COMPILE) headers_install; fi
$(hide) if [ "$(KERNEL_HEADER_DEFCONFIG)" != "$(KERNEL_DEFCONFIG)" ]; then \
echo "Used a different defconfig for header generation"; \
rm -f ../$(KERNEL_CONFIG); \
$(MAKE) -C $(KERNEL_SRC) O=$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) $(KERNEL_CROSS_COMPILE) $(KERNEL_DEFCONFIG); fi
$(hide) if [ ! -z "$(KERNEL_CONFIG_OVERRIDE)" ]; then \
echo "Overriding kernel config with '$(KERNEL_CONFIG_OVERRIDE)'"; \
echo $(KERNEL_CONFIG_OVERRIDE) >> $(KERNEL_OUT)/.config; \
$(MAKE) -C $(KERNEL_SRC) O=$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) $(KERNEL_CROSS_COMPILE) oldconfig; fi
# provide this rule because there are dependencies on this throughout the repo
$(KERNEL_HEADERS_INSTALL): $(KERNEL_HEADERS_INSTALL_STAMP)
kerneltags: $(KERNEL_OUT_STAMP) $(KERNEL_CONFIG)
$(MAKE) -C $(KERNEL_SRC) O=$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) $(KERNEL_CROSS_COMPILE) tags
kernelconfig: $(KERNEL_OUT_STAMP)
$(MAKE) $(MAKE_FLAGS) -C $(KERNEL_SRC) O=$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) $(KERNEL_CROSS_COMPILE) $(KERNEL_DEFCONFIG)
env KCONFIG_NOTIMESTAMP=true \
$(MAKE) -C $(KERNEL_SRC) O=$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) $(KERNEL_CROSS_COMPILE) menuconfig
env KCONFIG_NOTIMESTAMP=true \
$(MAKE) -C $(KERNEL_SRC) O=$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) $(KERNEL_CROSS_COMPILE) savedefconfig
cp $(KERNEL_OUT)/defconfig $(KERNEL_DEFCONFIG_SRC)
ifeq ($(TARGET_NEEDS_DTBOIMAGE),true)
TARGET_PREBUILT_DTBO := $(KERNEL_DTBO_OUT)
$(TARGET_PREBUILT_DTBO): TARGET_KERNEL_BINARIES $(AVBTOOL)
echo -e ${CL_GRN}"Building DTBO.img"${CL_RST}
$(KERNEL_SRC)/scripts/mkdtboimg.py create $(KERNEL_DTBO_OUT) --page_size=${BOARD_KERNEL_PAGESIZE} `find $(KERNEL_DTB) -name "*.dtbo"`
$(AVBTOOL) add_hash_footer \
--image $@ \
--partition_size $(BOARD_DTBOIMG_PARTITION_SIZE) \
--partition_name dtbo $(INTERNAL_AVB_DTBO_SIGNING_ARGS) \
$(BOARD_AVB_DTBO_ADD_HASH_FOOTER_ARGS)
endif # TARGET_NEEDS_DTBOIMAGE
## Install it
.PHONY: $(PRODUCT_OUT)/kernel
$(PRODUCT_OUT)/kernel: $(KERNEL_BIN)
cp $(KERNEL_BIN) $(PRODUCT_OUT)/kernel
ifeq ($(TARGET_NEEDS_DTBOIMAGE),true)
.PHONY: $(PRODUCT_OUT)/dtbo.img
$(PRODUCT_OUT)/dtbo.img: $(KERNEL_DTBO_OUT)
cp $(KERNEL_DTBO_OUT) $(PRODUCT_OUT)/dtbo.img
endif # TARGET_NEEDS_DTBOIMAGE
endif # Sony Kernel version
endif # Sony AOSP devices
endif # BUILD_KERNEL