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"kernel/Android.mk"
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| # | |
| # Copyright (C) 2009-2011 The Android-x86 Open Source Project | |
| # | |
| # 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 | |
| # | |
| ifeq ($(TARGET_PREBUILT_KERNEL),) | |
| KERNEL_DIR ?= $(call my-dir) | |
| ifeq ($(TARGET_ARCH),x86) | |
| KERNEL_TARGET := bzImage | |
| TARGET_KERNEL_CONFIG ?= android-x86_defconfig | |
| endif | |
| ifeq ($(TARGET_ARCH),arm) | |
| KERNEL_TARGET := zImage | |
| TARGET_KERNEL_CONFIG ?= goldfish_defconfig | |
| endif | |
| KBUILD_OUTPUT := $(CURDIR)/$(TARGET_OUT_INTERMEDIATES)/kernel | |
| mk_kernel := + $(hide) $(MAKE) -C $(KERNEL_DIR) O=$(KBUILD_OUTPUT) ARCH=$(TARGET_ARCH) $(if $(SHOW_COMMANDS),V=1) | |
| ifneq ($(TARGET_ARCH),$(HOST_ARCH)) | |
| mk_kernel += CROSS_COMPILE=$(CURDIR)/$(TARGET_TOOLS_PREFIX) | |
| endif | |
| KERNEL_CONFIG_FILE := $(if $(wildcard $(TARGET_KERNEL_CONFIG)),$(TARGET_KERNEL_CONFIG),$(KERNEL_DIR)/arch/$(TARGET_ARCH)/configs/$(TARGET_KERNEL_CONFIG)) | |
| MOD_ENABLED := $(shell grep ^CONFIG_MODULES=y $(KERNEL_CONFIG_FILE)) | |
| FIRMWARE_ENABLED := $(shell grep ^CONFIG_FIRMWARE_IN_KERNEL=y $(KERNEL_CONFIG_FILE)) | |
| # I understand Android build system discourage to use submake, | |
| # but I don't want to write a complex Android.mk to build kernel. | |
| # This is the simplest way I can think. | |
| KERNEL_DOTCONFIG_FILE := $(KBUILD_OUTPUT)/.config | |
| $(KERNEL_DOTCONFIG_FILE): $(KERNEL_CONFIG_FILE) | $(ACP) | |
| $(copy-file-to-new-target) | |
| BUILT_KERNEL_TARGET := $(KBUILD_OUTPUT)/arch/$(TARGET_ARCH)/boot/$(KERNEL_TARGET) | |
| $(INSTALLED_KERNEL_TARGET): $(KERNEL_DOTCONFIG_FILE) | |
| $(mk_kernel) oldnoconfig | |
| $(mk_kernel) $(KERNEL_TARGET) $(if $(MOD_ENABLED),modules) | |
| $(hide) $(ACP) -fp $(BUILT_KERNEL_TARGET) $@ | |
| $(if $(FIRMWARE_ENABLED),$(mk_kernel) INSTALL_MOD_PATH=$(CURDIR)/$(TARGET_OUT) firmware_install) | |
| ifneq ($(MOD_ENABLED),) | |
| ifeq ($(wildcard $(INSTALLED_KERNEL_TARGET)),) | |
| KERNEL_MODULES_DEP := $(TARGET_OUT)/lib/modules | |
| else | |
| KERNELRELEASE := $(shell $(MAKE) -sC $(KERNEL_DIR) O=$(KBUILD_OUTPUT) ARCH=$(TARGET_ARCH) kernelrelease) | |
| KERNEL_MODULES_DEP := $(TARGET_OUT)/lib/modules/$(KERNELRELEASE)/modules.dep | |
| endif | |
| $(KERNEL_MODULES_DEP): $(INSTALLED_KERNEL_TARGET) | |
| $(hide) rm -rf $(TARGET_OUT)/lib/modules | |
| $(mk_kernel) INSTALL_MOD_PATH=$(CURDIR)/$(TARGET_OUT) modules_install | |
| $(hide) rm -f $(TARGET_OUT)/lib/modules/*/{build,source} | |
| endif | |
| # rules to get source of Broadcom 802.11a/b/g/n hybrid device driver | |
| # based on broadcomsetup.sh of Kyle Evans | |
| WL_ENABLED := $(shell grep ^CONFIG_WL=[my] $(KERNEL_CONFIG_FILE)) | |
| WL_PATH := drivers/net/wireless/wl | |
| WL_SRC := $(KERNEL_DIR)/$(WL_PATH)/hybrid-portsrc_x86_32-v5_100_82_112.tar.gz | |
| $(WL_SRC): | |
| @echo Downloading $(@F)... | |
| $(hide) curl http://www.broadcom.com/docs/linux_sta/$(@F) > $@ && tar zxf $@ -C $(@D) --overwrite && \ | |
| (cd kernel/$(WL_PATH); patch Makefile < Makefile.patch; patch src/wl/sys/wl_iw.h < wl_iw.h.patch) | |
| $(INSTALLED_KERNEL_TARGET): $(if $(WL_ENABLED),$(WL_SRC)) | |
| installclean: FILES += $(KBUILD_OUTPUT) $(INSTALLED_KERNEL_TARGET) | |
| TARGET_PREBUILT_KERNEL := $(INSTALLED_KERNEL_TARGET) | |
| .PHONY: kernel | |
| kernel: $(TARGET_PREBUILT_KERNEL) | |
| else | |
| $(INSTALLED_KERNEL_TARGET): $(TARGET_PREBUILT_KERNEL) | $(ACP) | |
| $(copy-file-to-new-target) | |
| ifdef TARGET_PREBUILT_MODULES | |
| mkdir -p $(TARGET_OUT)/lib | |
| $(hide) cp -r $(TARGET_PREBUILT_MODULES) $(TARGET_OUT)/lib | |
| endif | |
| endif # TARGET_PREBUILT_KERNEL |
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