platform_build/core/copy_headers.mk
Dan Willemsen bab0fa6928 Add basic VNDK support in Make
Add BOARD_VNDK_VERSION and LOCAL_USE_VNDK to specify the version of the
VNDK that will be used globally, and whether to use the VNDK on a module
basis.

If the board is using the VNDK:

* LOCAL_COPY_HEADERS may only be used by modules defining LOCAL_USE_VNDK
* LOCAL_USE_VNDK modules will compile against the NDK headers and stub
  libraries, but continue to use the platform libc++.
* LOCAL_USE_VNDK modules will not have the global includes like
  system/core/include, but it will use device-specific kernel headers.

This change does not attempt to enforce any linking constraints, that
will come in a later patch.

Test: out/build-aosp_arm.ninja is identical before/after
Change-Id: Icce65d4974f085093d500b5b2516983788fe2905
2016-11-28 13:46:17 -08:00

50 lines
1.7 KiB
Makefile

ifneq (,$(strip $(LOCAL_COPY_HEADERS)))
###########################################################
## Copy headers to the install tree
###########################################################
$(call record-module-type,COPY_HEADERS)
ifneq ($(strip $(LOCAL_IS_HOST_MODULE)),)
my_prefix := HOST_
else
my_prefix := TARGET_
endif
# Modules linking against the SDK do not have the include path to use
# COPY_HEADERS, so prevent them from exporting any either.
ifdef LOCAL_SDK_VERSION
$(shell echo $(LOCAL_MODULE_MAKEFILE): $(LOCAL_MODULE): Modules using LOCAL_SDK_VERSION may not use LOCAL_COPY_HEADERS >&2)
$(error done)
endif
include $(BUILD_SYSTEM)/local_vndk.mk
# If we're using the VNDK, only vendor modules using the VNDK may use
# LOCAL_COPY_HEADERS. Platform libraries will not have the include path
# present.
ifdef BOARD_VNDK_VERSION
ifndef LOCAL_USE_VNDK
$(shell echo $(LOCAL_MODULE_MAKEFILE): $(LOCAL_MODULE): Only vendor modules using LOCAL_USE_VNDK may use LOCAL_COPY_HEADERS >&2)
$(error done)
endif
endif
# Create a rule to copy each header, and make the
# all_copied_headers phony target depend on each
# destination header. copy-one-header defines the
# actual rule.
#
$(foreach header,$(LOCAL_COPY_HEADERS), \
$(eval _chFrom := $(LOCAL_PATH)/$(header)) \
$(eval _chTo := \
$(if $(LOCAL_COPY_HEADERS_TO),\
$($(my_prefix)OUT_HEADERS)/$(LOCAL_COPY_HEADERS_TO)/$(notdir $(header)),\
$($(my_prefix)OUT_HEADERS)/$(notdir $(header)))) \
$(eval ALL_COPIED_HEADERS.$(_chTo).MAKEFILE += $(LOCAL_MODULE_MAKEFILE)) \
$(eval ALL_COPIED_HEADERS.$(_chTo).SRC += $(_chFrom)) \
$(if $(filter $(_chTo),$(ALL_COPIED_HEADERS)),, \
$(eval ALL_COPIED_HEADERS += $(_chTo))) \
)
_chFrom :=
_chTo :=
endif # LOCAL_COPY_HEADERS