This repository has been archived by the owner on Feb 20, 2025. It is now read-only.
-
Notifications
You must be signed in to change notification settings - Fork 1
/
Copy pathAndroidKernel.mk
119 lines (98 loc) · 4.22 KB
/
AndroidKernel.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
#Android makefile to build kernel as a part of Android Build
ifeq ($(KERNEL_DEFCONFIG),)
$(error KERNEL_DEFCONFIG must be set as environment variable)
endif
ifeq ($(INSTALLED_KERNEL_TARGET),)
INSTALLED_KERNEL_TARGET := $(PRODUCT_OUT)/kernel
INSTALLED_DTBOIMAGE_TARGET := $(PRODUCT_OUT)/dtbo.img
BOARD_PREBUILT_DTBOIMAGE := $(PRODUCT_OUT)/prebuilt_dtbo.img
INSTALLED_DTB_TARGET := $(PRODUCT_OUT)/dtb.img
#INSTALLED_DPM_DTB_TARGET := $(PRODUCT_OUT)/dpm.img
BOARD_MKBOOTIMG_ARGS += \
--second $(INSTALLED_DTB_TARGET) \
--second_offset 0
endif
TARGET_KERNEL_ARCH := $(strip $(TARGET_KERNEL_ARCH))
ifeq ($(TARGET_KERNEL_ARCH),)
KERNEL_ARCH := arm64
else
KERNEL_ARCH := $(TARGET_KERNEL_ARCH)
endif
ifeq ($(CROSS_COMPILE),)
KERNEL_CROSS_COMPILE := aarch64-linux-android-
else
KERNEL_CROSS_COMPILE := $(CROSS_COMPILE)
endif
SOONG_GLOBAL_CONFIG := build/soong/cc/config/global.go
CLANG_VERSION := $(shell grep "ClangDefaultVersion" $(SOONG_GLOBAL_CONFIG) | grep -o "clang-[0-9][0-9]*")
CLANG_PATH := prebuilts/clang/host/linux-x86
CC :=$(PWD)/$(CLANG_PATH)/$(CLANG_VERSION)/bin/clang
ifeq ($(CLANG_TRIPLE),)
CLANG_TRIPLE := aarch64-linux-gnu-
else
CLANG_TRIPLE := $(CLANG_TRIPLE)
endif
ifeq ($(TARGET_PREBUILT_KERNEL),)
TARGET_KERNEL_SOURCE := kernel/$(TARGET_KERNEL)
KERNEL_CONFIG := $(TARGET_KERNEL_SOURCE)/.config
KERNEL_BOOT := $(TARGET_KERNEL_SOURCE)/arch/$(KERNEL_ARCH)/boot
KERNEL_BIN := $(KERNEL_BOOT)/Image
KERNEL_DTB_DIR := $(KERNEL_BOOT)/dts/exynos
ifeq ($(TARGET_DTB_NAME),)
KERNEL_DTB := $(KERNEL_DTB_DIR)/$(TARGET_SOC).dtb
else
KERNEL_DTB := $(KERNEL_DTB_DIR)/$(TARGET_DTB_NAME).dtb
endif
ifeq ($(TARGET_DTBO_CFG),)
KERNEL_DTBO_CFG := $(KERNEL_DTB_DIR)/$(TARGET_SOC)_dtboimg.cfg
else
KERNEL_DTBO_CFG := $(KERNEL_DTB_DIR)/$(TARGET_DTBO_CFG)
endif
#DPM_DTB_DIR := $(KERNEL_DTB_DIR)/dpm
#DPM_DTB := $(DPM_DTB_DIR)/exynos-dpm.dtbo
MKDTIMG := $(HOST_OUT_EXECUTABLES)/mkdtimg
KERNEL_MERGE_CONFIG := $(TARGET_KERNEL_SOURCE)/scripts/kconfig/merge_config.sh
KERNEL_CONFIG_BASE := $(TARGET_KERNEL_SOURCE)/arch/$(KERNEL_ARCH)/configs
KERNEL_DEFCONFIG_PATH := $(KERNEL_CONFIG_BASE)/$(KERNEL_DEFCONFIG)
ifeq ($(KERNEL_DEFCONFIG),)
$(error Kernel configuration not defined, cannot build kernel)
else
ifeq ($(TARGET_BUILD_VARIANT),eng)
#MAKE_CONFIG_CMD := $(MAKE) -C $(TARGET_KERNEL_SOURCE) ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(KERNEL_CROSS_COMPILE) $(KERNEL_DEFCONFIG) CC=$(CC)
MAKE_CONFIG_CMD := $(MAKE) -C $(TARGET_KERNEL_SOURCE) ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(KERNEL_CROSS_COMPILE) $(KERNEL_DEFCONFIG)
else
ifeq ($(TARGET_BUILD_VARIANT),userdebug)
KERNEL_USER_CFG := $(KERNEL_CONFIG_BASE)/$(TARGET_SOC)_userdebug.cfg
else
KERNEL_USER_CFG := $(KERNEL_CONFIG_BASE)/$(TARGET_SOC)_user.cfg
endif
MAKE_CONFIG_CMD := ARCH=$(KERNEL_ARCH) $(KERNEL_MERGE_CONFIG) -m -O $(TARGET_KERNEL_SOURCE) $(KERNEL_DEFCONFIG_PATH) $(KERNEL_USER_CFG);
#MAKE_CONFIG_CMD += $(MAKE) -C $(TARGET_KERNEL_SOURCE) ARCH=$(KERNEL_ARCH) KCONFIG_ALLCONFIG=.config alldefconfig CC=$(CC)
MAKE_CONFIG_CMD += $(MAKE) -C $(TARGET_KERNEL_SOURCE) ARCH=$(KERNEL_ARCH) KCONFIG_ALLCONFIG=.config alldefconfig
endif
ifeq ($(N_KERNEL_BUILD_THREAD),)
N_KERNEL_BUILD_THREAD := 4
endif
TARGET_PREBUILT_KERNEL := $(KERNEL_BIN)
.PHONY: phony-rebuild
.PHONY: kernel
kernel: $(KERNEL_BIN)
.PHONY: kernel-distclean
kernel-distclean:
$(MAKE) -C $(TARGET_KERNEL_SOURCE) ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(KERNEL_CROSS_COMPILE) distclean
$(KERNEL_CONFIG): phony-rebuild
$(hide) echo "make $(KERNEL_DEFCONFIG)"
$(MAKE_CONFIG_CMD)
$(KERNEL_BIN): $(KERNEL_CONFIG)
$(hide) echo "Building kernel..."
# $(MAKE) -C $(TARGET_KERNEL_SOURCE) ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(KERNEL_CROSS_COMPILE) CLANG_TRIPLE=$(CLANG_TRIPLE) CC=$(CC) -j$(N_KERNEL_BUILD_THREAD)
$(MAKE) -C $(TARGET_KERNEL_SOURCE) ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(KERNEL_CROSS_COMPILE) CLANG_TRIPLE=$(CLANG_TRIPLE) -j$(N_KERNEL_BUILD_THREAD)
$(INSTALLED_KERNEL_TARGET): $(INSTALLED_DTBOIMAGE_TARGET)
cp $(KERNEL_BIN) $(INSTALLED_KERNEL_TARGET)
cp $(KERNEL_DTB) $(INSTALLED_DTB_TARGET)
# cp $(DPM_DTB) $(INSTALLED_DPM_DTB_TARGET)
$(BOARD_PREBUILT_DTBOIMAGE): $(MKDTIMG) $(KERNEL_DTBO_CFG) $(KERNEL_BIN) $(INSTALLED_BOOTLOADER_TARGET)
$(hide) echo "Building DTBOIMAGE..."
$(MKDTIMG) cfg_create $@ $(KERNEL_DTBO_CFG) -d $(KERNEL_OBJECTS)
endif #TARGET_PREBUILT_KERNEL
endif #KERNEL_DEFCONFIG