# 如果定义了ANDROID_BUILD_SHELL，则ANDROID_BUILD_SHELL # 否则使用默认的/bin/bash ifdef ANDROID_BUILD_SHELL SHELL := $(ANDROID_BUILD_SHELL) else SHELL := /bin/bash endif # Utility variables. empty := space := $(empty) $(empty) comma := , # Note that make will eat the newline just before endef. define newline endef # 不能简单的定义或\ backslash := a backslash := $(patsubst %a,%,$(backslash)) # python有关 export PYTHONDONTWRITEBYTECODE := 1 # 标准源目录 SRC_DOCS:= $(TOPDIR)docs # TODO: 强制一些层，当模块连接针对特定库时仅仅添加一些头文件路径 # TODO: 查看可以从这些全局列表删除的。 SRC_HEADERS := $(TOPDIR)system/core/include $(TOPDIR)hardware/libhardware/include $(TOPDIR)hardware/libhardware_legacy/include $(TOPDIR)hardware/ril/include $(TOPDIR)libnativehelper/include $(TOPDIR)frameworks/native/include $(TOPDIR)frameworks/native/opengl/include $(TOPDIR)frameworks/av/include $(TOPDIR)frameworks/base/include SRC_HOST_HEADERS:=$(TOPDIR)tools/include SRC_LIBRARIES:= $(TOPDIR)libs SRC_SERVERS:= $(TOPDIR)servers SRC_TARGET_DIR := $(TOPDIR)build/target SRC_API_DIR := $(TOPDIR)prebuilts/sdk/api SRC_SYSTEM_API_DIR := $(TOPDIR)prebuilts/sdk/system-api # 特定工具的路径 SRC_DROIDDOC_DIR := $(TOPDIR)build/tools/droiddoc # 避免硬件解码路径被覆盖的调用pathmap.mk建立硬解映射 include $(BUILD_SYSTEM)/pathmap.mk # 构建系统内部文件（写Android.mk时会调用include头文件，也就是这些makefile文件） CLEAR_VARS:= $(BUILD_SYSTEM)/clear_vars.mk BUILD_HOST_STATIC_LIBRARY:= $(BUILD_SYSTEM)/host_static_library.mk BUILD_HOST_SHARED_LIBRARY:= $(BUILD_SYSTEM)/host_shared_library.mk BUILD_STATIC_LIBRARY:= $(BUILD_SYSTEM)/static_library.mk BUILD_RAW_STATIC_LIBRARY := $(BUILD_SYSTEM)/raw_static_library.mk BUILD_SHARED_LIBRARY:= $(BUILD_SYSTEM)/shared_library.mk BUILD_EXECUTABLE:= $(BUILD_SYSTEM)/executable.mk BUILD_RAW_EXECUTABLE:= $(BUILD_SYSTEM)/raw_executable.mk BUILD_HOST_EXECUTABLE:= $(BUILD_SYSTEM)/host_executable.mk BUILD_PACKAGE:= $(BUILD_SYSTEM)/package.mk BUILD_PHONY_PACKAGE:= $(BUILD_SYSTEM)/phony_package.mk BUILD_HOST_PREBUILT:= $(BUILD_SYSTEM)/host_prebuilt.mk BUILD_PREBUILT:= $(BUILD_SYSTEM)/prebuilt.mk BUILD_MULTI_PREBUILT:= $(BUILD_SYSTEM)/multi_prebuilt.mk BUILD_JAVA_LIBRARY:= $(BUILD_SYSTEM)/java_library.mk BUILD_STATIC_JAVA_LIBRARY:= $(BUILD_SYSTEM)/static_java_library.mk BUILD_HOST_JAVA_LIBRARY:= $(BUILD_SYSTEM)/host_java_library.mk BUILD_DROIDDOC:= $(BUILD_SYSTEM)/droiddoc.mk BUILD_COPY_HEADERS := $(BUILD_SYSTEM)/copy_headers.mk BUILD_NATIVE_TEST := $(BUILD_SYSTEM)/native_test.mk BUILD_HOST_NATIVE_TEST := $(BUILD_SYSTEM)/host_native_test.mk BUILD_SHARED_TEST_LIBRARY := $(BUILD_SYSTEM)/shared_test_lib.mk BUILD_HOST_SHARED_TEST_LIBRARY := $(BUILD_SYSTEM)/host_shared_test_lib.mk BUILD_STATIC_TEST_LIBRARY := $(BUILD_SYSTEM)/static_test_lib.mk BUILD_HOST_STATIC_TEST_LIBRARY := $(BUILD_SYSTEM)/host_static_test_lib.mk BUILD_NOTICE_FILE := $(BUILD_SYSTEM)/notice_files.mk BUILD_HOST_DALVIK_JAVA_LIBRARY := $(BUILD_SYSTEM)/host_dalvik_java_library.mk BUILD_HOST_DALVIK_STATIC_JAVA_LIBRARY := $(BUILD_SYSTEM)/host_dalvik_static_java_library.mk -include cts/build/config.mk # 解析目标修饰符，make目标包含showcommands，则打印全命令 SHOW_COMMANDS:= $(filter showcommands,$(MAKECMDGOALS)) # 设置通用值 # 全局变量、cflags COMMON_GLOBAL_CFLAGS:= -DANDROID -fmessage-length=0 -W -Wall -Wno-unused -Winit-self -Wpointer-arith COMMON_RELEASE_CFLAGS:= -DNDEBUG -UDEBUG COMMON_GLOBAL_CPPFLAGS:= $(COMMON_GLOBAL_CFLAGS) -Wsign-promo COMMON_RELEASE_CPPFLAGS:= $(COMMON_RELEASE_CFLAGS) # 不同包使用的扩展名 COMMON_PACKAGE_SUFFIX := .zip COMMON_JAVA_PACKAGE_SUFFIX := .jar COMMON_ANDROID_PACKAGE_SUFFIX := .apk # flag列表改变错误中的不同警告 TARGET_ERROR_FLAGS := -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point # 符号压缩 TARGET_COMPRESS_MODULE_SYMBOLS := false # 包含底层配置文件 # -include:不是必须包含的 # 包含 buildspec.mk 可以设置一些东西。 # 如果文件不存在，则环境变量不会使用。如果不工作，则认为是arm build ifndef ANDROID_BUILDSPEC ANDROID_BUILDSPEC := $(TOPDIR)buildspec.mk endif -include $(ANDROID_BUILDSPEC) # 包含一些环境设置 include $(BUILD_SYSTEM)/envsetup.mk