mirror of
https://github.com/team-infusion-developers/android_kernel_samsung_msm8976.git
synced 2024-11-01 02:21:16 +00:00
f5092b44a1
When using a cross compiler that supports both Android and non-Android configurations, pass the -mno-android flag to use non-Android spec to compile the kernel. Change-Id: Ibd952f3aea06f9f4f8c957c8e2a7666dd5dcdbba Signed-off-by: David Ng <dave@codeaurora.org>
135 lines
5.3 KiB
Makefile
135 lines
5.3 KiB
Makefile
#Android makefile to build kernel as a part of Android Build
|
|
PERL = perl
|
|
|
|
KERNEL_TARGET := $(strip $(INSTALLED_KERNEL_TARGET))
|
|
ifeq ($(KERNEL_TARGET),)
|
|
INSTALLED_KERNEL_TARGET := $(PRODUCT_OUT)/kernel
|
|
endif
|
|
|
|
TARGET_KERNEL_ARCH := $(strip $(TARGET_KERNEL_ARCH))
|
|
ifeq ($(TARGET_KERNEL_ARCH),)
|
|
KERNEL_ARCH := arm
|
|
else
|
|
KERNEL_ARCH := $(TARGET_KERNEL_ARCH)
|
|
endif
|
|
|
|
TARGET_KERNEL_HEADER_ARCH := $(strip $(TARGET_KERNEL_HEADER_ARCH))
|
|
ifeq ($(TARGET_KERNEL_HEADER_ARCH),)
|
|
KERNEL_HEADER_ARCH := $(KERNEL_ARCH)
|
|
else
|
|
$(warning Forcing kernel header generation only for '$(TARGET_KERNEL_HEADER_ARCH)')
|
|
KERNEL_HEADER_ARCH := $(TARGET_KERNEL_HEADER_ARCH)
|
|
endif
|
|
|
|
KERNEL_HEADER_DEFCONFIG := $(strip $(KERNEL_HEADER_DEFCONFIG))
|
|
ifeq ($(KERNEL_HEADER_DEFCONFIG),)
|
|
KERNEL_HEADER_DEFCONFIG := $(KERNEL_DEFCONFIG)
|
|
endif
|
|
|
|
# Force 32-bit binder IPC for 64bit kernel with 32bit userspace
|
|
ifeq ($(KERNEL_ARCH),arm64)
|
|
ifeq ($(TARGET_ARCH),arm)
|
|
KERNEL_CONFIG_OVERRIDE := CONFIG_ANDROID_BINDER_IPC_32BIT=y
|
|
endif
|
|
endif
|
|
|
|
TARGET_KERNEL_CROSS_COMPILE_PREFIX := $(strip $(TARGET_KERNEL_CROSS_COMPILE_PREFIX))
|
|
ifeq ($(TARGET_KERNEL_CROSS_COMPILE_PREFIX),)
|
|
KERNEL_CROSS_COMPILE := arm-eabi-
|
|
else
|
|
KERNEL_CROSS_COMPILE := $(TARGET_KERNEL_CROSS_COMPILE_PREFIX)
|
|
endif
|
|
|
|
ifeq ($(TARGET_PREBUILT_KERNEL),)
|
|
|
|
KERNEL_GCC_NOANDROID_CHK := $(shell (echo "int main() {return 0;}" | $(KERNEL_CROSS_COMPILE)gcc -E -mno-android - > /dev/null 2>&1 ; echo $$?))
|
|
ifeq ($(strip $(KERNEL_GCC_NOANDROID_CHK)),0)
|
|
KERNEL_CFLAGS := KCFLAGS=-mno-android
|
|
endif
|
|
|
|
KERNEL_OUT := $(TARGET_OUT_INTERMEDIATES)/KERNEL_OBJ
|
|
KERNEL_CONFIG := $(KERNEL_OUT)/.config
|
|
|
|
ifeq ($(KERNEL_DEFCONFIG)$(wildcard $(KERNEL_CONFIG)),)
|
|
$(error Kernel configuration not defined, cannot build kernel)
|
|
else
|
|
|
|
ifeq ($(TARGET_USES_UNCOMPRESSED_KERNEL),true)
|
|
$(info Using uncompressed kernel)
|
|
TARGET_PREBUILT_INT_KERNEL := $(KERNEL_OUT)/arch/$(KERNEL_ARCH)/boot/Image
|
|
else
|
|
TARGET_PREBUILT_INT_KERNEL := $(KERNEL_OUT)/arch/$(KERNEL_ARCH)/boot/zImage
|
|
endif
|
|
|
|
ifeq ($(TARGET_KERNEL_APPEND_DTB), true)
|
|
$(info Using appended DTB)
|
|
TARGET_PREBUILT_INT_KERNEL := $(TARGET_PREBUILT_INT_KERNEL)-dtb
|
|
endif
|
|
|
|
KERNEL_HEADERS_INSTALL := $(KERNEL_OUT)/usr
|
|
KERNEL_MODULES_INSTALL := system
|
|
KERNEL_MODULES_OUT := $(TARGET_OUT)/lib/modules
|
|
|
|
TARGET_PREBUILT_KERNEL := $(TARGET_PREBUILT_INT_KERNEL)
|
|
|
|
define mv-modules
|
|
mdpath=`find $(KERNEL_MODULES_OUT) -type f -name modules.dep`;\
|
|
if [ "$$mdpath" != "" ];then\
|
|
mpath=`dirname $$mdpath`;\
|
|
ko=`find $$mpath/kernel -type f -name *.ko`;\
|
|
for i in $$ko; do mv $$i $(KERNEL_MODULES_OUT)/; done;\
|
|
fi
|
|
endef
|
|
|
|
define clean-module-folder
|
|
mdpath=`find $(KERNEL_MODULES_OUT) -type f -name modules.dep`;\
|
|
if [ "$$mdpath" != "" ];then\
|
|
mpath=`dirname $$mdpath`; rm -rf $$mpath;\
|
|
fi
|
|
endef
|
|
|
|
$(KERNEL_OUT):
|
|
mkdir -p $(KERNEL_OUT)
|
|
|
|
$(KERNEL_CONFIG): $(KERNEL_OUT)
|
|
$(MAKE) -C kernel O=../$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(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; \
|
|
$(MAKE) -C kernel O=../$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(KERNEL_CROSS_COMPILE) oldconfig; fi
|
|
|
|
$(TARGET_PREBUILT_INT_KERNEL): $(KERNEL_OUT) $(KERNEL_HEADERS_INSTALL)
|
|
$(hide) echo "Building kernel..."
|
|
$(hide) rm -rf $(KERNEL_OUT)/arch/$(KERNEL_ARCH)/boot/dts
|
|
$(MAKE) -C kernel O=../$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(KERNEL_CROSS_COMPILE) $(KERNEL_CFLAGS)
|
|
$(MAKE) -C kernel O=../$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(KERNEL_CROSS_COMPILE) $(KERNEL_CFLAGS) modules
|
|
$(MAKE) -C kernel O=../$(KERNEL_OUT) INSTALL_MOD_PATH=../../$(KERNEL_MODULES_INSTALL) INSTALL_MOD_STRIP=1 ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(KERNEL_CROSS_COMPILE) modules_install
|
|
$(mv-modules)
|
|
$(clean-module-folder)
|
|
|
|
$(KERNEL_HEADERS_INSTALL): $(KERNEL_OUT)
|
|
$(hide) if [ ! -z "$(KERNEL_HEADER_DEFCONFIG)" ]; then \
|
|
$(hide) rm -f ../$(KERNEL_CONFIG); \
|
|
$(MAKE) -C kernel O=../$(KERNEL_OUT) ARCH=$(KERNEL_HEADER_ARCH) CROSS_COMPILE=$(KERNEL_CROSS_COMPILE) $(KERNEL_HEADER_DEFCONFIG); \
|
|
$(MAKE) -C kernel O=../$(KERNEL_OUT) ARCH=$(KERNEL_HEADER_ARCH) CROSS_COMPILE=$(KERNEL_CROSS_COMPILE) headers_install; fi
|
|
$(hide) if [ "$(KERNEL_HEADER_DEFCONFIG)" != "$(KERNEL_DEFCONFIG)" ]; then \
|
|
echo "Used a different defconfig for header generation"; \
|
|
$(hide) rm -f ../$(KERNEL_CONFIG); \
|
|
$(MAKE) -C kernel O=../$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(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; \
|
|
$(MAKE) -C kernel O=../$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(KERNEL_CROSS_COMPILE) oldconfig; fi
|
|
|
|
kerneltags: $(KERNEL_OUT) $(KERNEL_CONFIG)
|
|
$(MAKE) -C kernel O=../$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(KERNEL_CROSS_COMPILE) tags
|
|
|
|
kernelconfig: $(KERNEL_OUT) $(KERNEL_CONFIG)
|
|
env KCONFIG_NOTIMESTAMP=true \
|
|
$(MAKE) -C kernel O=../$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(KERNEL_CROSS_COMPILE) menuconfig
|
|
env KCONFIG_NOTIMESTAMP=true \
|
|
$(MAKE) -C kernel O=../$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(KERNEL_CROSS_COMPILE) savedefconfig
|
|
cp $(KERNEL_OUT)/defconfig kernel/arch/$(KERNEL_ARCH)/configs/$(KERNEL_DEFCONFIG)
|
|
|
|
endif
|
|
endif
|