build/core/config.mk
//头文件路径：SRC_HEADERS 
//宿主头文件路径：SRC_HOST_HEADERS

# TODO: Enforce some kind of layering; only add include paths
#       when a module links against a particular library.
# TODO: See if we can remove most of these from the global list.
SRC_HEADERS := \
	$(TOPDIR)system/core/include \
	$(TOPDIR)system/media/audio/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

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