projects / GitHub / LineageOS / android_kernel_motorola_exynos9610.git / blame
| Commit | Line | Data |
|---|---|---|
| d2d91247 YK |
1 | #Android makefile to build kernel as a part of Android Build |
| 2 | ||
| 3 | ifeq ($(KERNEL_DEFCONFIG),) | |
| 4 | $(error KERNEL_DEFCONFIG must be set as environment variable) | |
| 5 | endif | |
| 6 | ||
| 7 | ifeq ($(INSTALLED_KERNEL_TARGET),) | |
| 8 | INSTALLED_KERNEL_TARGET := $(PRODUCT_OUT)/kernel | |
| 9 | ifneq ($(BOARD_DTBO_SUPPORT),) | |
| 10 | INSTALLED_DTBO_TARGET := $(PRODUCT_OUT)/dtbo.img | |
| 11 | endif #BOARD_DTBO_SUPPORT | |
| 12 | INSTALLED_DTB_TARGET := $(PRODUCT_OUT)/dtb.img | |
| 13 | endif | |
| 14 | ||
| 15 | TARGET_KERNEL_ARCH := $(strip $(TARGET_KERNEL_ARCH)) | |
| 16 | ifeq ($(TARGET_KERNEL_ARCH),) | |
| 17 | KERNEL_ARCH := arm64 | |
| 18 | else | |
| 19 | KERNEL_ARCH := $(TARGET_KERNEL_ARCH) | |
| 20 | endif | |
| 21 | ||
| 22 | ifeq ($(CROSS_COMPILE),) | |
| 23 | KERNEL_CROSS_COMPILE := aarch64-linux-android- | |
| 24 | else | |
| 25 | KERNEL_CROSS_COMPILE := $(CROSS_COMPILE) | |
| 26 | endif | |
| 27 | ||
| 28 | ifeq ($(CLANG_TRIPLE),) | |
| 29 | CLANG_TRIPLE := aarch64-linux-gnu- | |
| 30 | else | |
| 31 | CLANG_TRIPLE := $(CLANG_TRIPLE) | |
| 32 | endif | |
| 33 | ||
| 34 | ifeq ($(TARGET_PREBUILT_KERNEL),) | |
| 35 | ||
| 36 | TARGET_KERNEL_SOURCE := kernel/$(TARGET_KERNEL) | |
| 37 | KERNEL_CONFIG := $(TARGET_KERNEL_SOURCE)/.config | |
| 38 | KERNEL_BOOT := $(TARGET_KERNEL_SOURCE)/arch/$(KERNEL_ARCH)/boot | |
| 39 | KERNEL_BIN := $(KERNEL_BOOT)/Image | |
| 40 | KERNEL_DTB_DIR := $(KERNEL_BOOT)/dts/exynos | |
| 41 | KERNEL_DTB := $(KERNEL_DTB_DIR)/exynos9610-erd9610.dtb | |
| 42 | ifneq ($(BOARD_DTBO_SUPPORT),) | |
| 43 | KERNEL_DTBO_CFG := $(KERNEL_DTB_DIR)/exynos9610_dtboimg.cfg | |
| 44 | endif #BOARD_DTBO_SUPPORT | |
| 45 | MKDTIMG := $(HOST_OUT_EXECUTABLES)/mkdtimg | |
| 46 | ||
| 47 | ifeq ($(KERNEL_DEFCONFIG),) | |
| 48 | $(error Kernel configuration not defined, cannot build kernel) | |
| 49 | else | |
| 50 | ||
| 51 | ifeq ($(N_KERNEL_BUILD_THREAD),) | |
| 52 | N_KERNEL_BUILD_THREAD := 1 | |
| 53 | endif | |
| 54 | ||
| 55 | TARGET_PREBUILT_KERNEL := $(KERNEL_BIN) | |
| 56 | ||
| 57 | .PHONY: remove-bins | |
| 58 | remove-bin: | |
| 59 | $(hide) echo "Clean Up prebuilts" | |
| 60 | rm -f $(KERNEL_CONFIG) | |
| 61 | rm -f $(KERNEL_BIN) | |
| 62 | rm -f $(KERNEL_DTB) | |
| 63 | rm -f $(INSTALLED_KERNEL_TARGET) | |
| 64 | rm -f $(INSTALLED_DTBO_TARGET) | |
| 65 | rm -f $(INSTALLED_DTB_TARGET) | |
| 66 | ||
| 67 | .PHONY: kernel | |
| 68 | kernel: $(KERNEL_BIN) | |
| 69 | ||
| 70 | .PHONY: kernel-distclean | |
| 71 | kernel-distclean: | |
| 72 | $(MAKE) -C $(TARGET_KERNEL_SOURCE) ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(KERNEL_CROSS_COMPILE) distclean | |
| 73 | ||
| 74 | $(KERNEL_CONFIG): remove-bins | |
| 75 | $(hide) echo "make $(KERNEL_DEFCONFIG)" | |
| 76 | $(MAKE) -C $(TARGET_KERNEL_SOURCE) ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(KERNEL_CROSS_COMPILE) $(KERNEL_DEFCONFIG) | |
| 77 | ||
| 78 | $(KERNEL_BIN): $(KERNEL_CONFIG) | |
| 79 | $(hide) echo "Building kernel..." | |
| 80 | $(MAKE) -C $(TARGET_KERNEL_SOURCE) ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(KERNEL_CROSS_COMPILE) CLANG_TRIPLE=$(CLANG_TRIPLE) CC=clang -j$(N_KERNEL_BUILD_THREAD) | |
| 81 | ||
| 82 | ifneq ($(BOARD_DTBO_SUPPORT),) | |
| 83 | $(INSTALLED_KERNEL_TARGET): $(KERNEL_BIN) $(MKDTIMG) | |
| 84 | cp $(KERNEL_BIN) $(INSTALLED_KERNEL_TARGET) | |
| 85 | cp $(KERNEL_DTB) $(INSTALLED_DTB_TARGET) | |
| 86 | $(hide) echo "Building DTBO..." | |
| 87 | ln -sf $(TARGET_KERNEL_SOURCE)/arch | |
| 88 | $(MKDTIMG) cfg_create $(INSTALLED_DTBO_TARGET) $(KERNEL_DTBO_CFG) | |
| 89 | rm -f arch | |
| 90 | else #BOARD_DTBO_SUPPORT | |
| 91 | $(INSTALLED_KERNEL_TARGET): $(KERNEL_BIN) $(MKDTIMG) | |
| 92 | cp $(KERNEL_BIN) $(INSTALLED_KERNEL_TARGET) | |
| 93 | cp $(KERNEL_DTB) $(INSTALLED_DTB_TARGET) | |
| 94 | endif #BOARD_DTBO_SUPPORT | |
| 95 | ||
| 96 | endif #TARGET_PREBUILT_KERNEL | |
| 97 | endif #KERNEL_DEFCONFIG |