###########################################################
## Standard rules for building binary object files from
## asm/c/cpp/yacc/lex/etc source files.
##
## The list of object files is exported in $(all_objects).
###########################################################

#######################################
include $(BUILD_SYSTEM)/base_rules.mk
#######################################

##################################################
# Compute the dependency of the shared libraries
##################################################
# On the target, we compile with -nostdlib, so we must add in the
# default system shared libraries, unless they have requested not
# to by supplying a LOCAL_SYSTEM_SHARED_LIBRARIES value.  One would
# supply that, for example, when building libc itself.
ifdef LOCAL_IS_HOST_MODULE
  ifeq ($(LOCAL_SYSTEM_SHARED_LIBRARIES),none)
      my_system_shared_libraries :=
  else
      my_system_shared_libraries := $(LOCAL_SYSTEM_SHARED_LIBRARIES)
  endif
else
  ifeq ($(LOCAL_SYSTEM_SHARED_LIBRARIES),none)
      my_system_shared_libraries := libc libm
  else
      my_system_shared_libraries := $(LOCAL_SYSTEM_SHARED_LIBRARIES)
  endif
endif

# The following LOCAL_ variables will be modified in this file.
# Because the same LOCAL_ variables may be used to define modules for both 1st arch and 2nd arch,
# we can't modify them in place.
my_src_files := $(LOCAL_SRC_FILES)
my_src_files_exclude := $(LOCAL_SRC_FILES_EXCLUDE)
my_static_libraries := $(LOCAL_STATIC_LIBRARIES)
my_whole_static_libraries := $(LOCAL_WHOLE_STATIC_LIBRARIES)
my_shared_libraries := $(LOCAL_SHARED_LIBRARIES)
my_cflags := $(LOCAL_CFLAGS)
my_conlyflags := $(LOCAL_CONLYFLAGS)
my_cppflags := $(LOCAL_CPPFLAGS)
my_cflags_no_override := $(GLOBAL_CFLAGS_NO_OVERRIDE)
my_cppflags_no_override := $(GLOBAL_CPPFLAGS_NO_OVERRIDE)
my_ldflags := $(LOCAL_LDFLAGS)
my_ldlibs := $(LOCAL_LDLIBS)
my_asflags := $(LOCAL_ASFLAGS)
my_cc := $(LOCAL_CC)
my_cc_wrapper := $(CC_WRAPPER)
my_cxx := $(LOCAL_CXX)
my_cxx_wrapper := $(CXX_WRAPPER)
my_c_includes := $(LOCAL_C_INCLUDES)
my_generated_sources := $(LOCAL_GENERATED_SOURCES)
my_native_coverage := $(LOCAL_NATIVE_COVERAGE)
my_additional_dependencies := $(LOCAL_MODULE_MAKEFILE_DEP) $(LOCAL_ADDITIONAL_DEPENDENCIES)
my_export_c_include_dirs := $(LOCAL_EXPORT_C_INCLUDE_DIRS)

ifdef LOCAL_IS_HOST_MODULE
my_allow_undefined_symbols := true
else
my_allow_undefined_symbols := $(strip $(LOCAL_ALLOW_UNDEFINED_SYMBOLS))
endif

my_ndk_sysroot :=
my_ndk_sysroot_include :=
my_ndk_sysroot_lib :=
ifdef LOCAL_SDK_VERSION
  ifdef LOCAL_NDK_VERSION
    $(error $(LOCAL_PATH): LOCAL_NDK_VERSION is now retired.)
  endif
  ifdef LOCAL_IS_HOST_MODULE
    $(error $(LOCAL_PATH): LOCAL_SDK_VERSION cannot be used in host module)
  endif
  my_ndk_source_root := $(HISTORICAL_NDK_VERSIONS_ROOT)/current/sources
  my_ndk_sysroot := $(HISTORICAL_NDK_VERSIONS_ROOT)/current/platforms/android-$(LOCAL_SDK_VERSION)/arch-$(TARGET_$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH)
  my_ndk_sysroot_include := $(my_ndk_sysroot)/usr/include
  ifeq (x86_64,$(TARGET_$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH))
    my_ndk_sysroot_lib := $(my_ndk_sysroot)/usr/lib64
  else ifeq (mips32r6,$(TARGET_$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH_VARIANT))
    my_ndk_sysroot_lib := $(my_ndk_sysroot)/usr/libr6
  else
    my_ndk_sysroot_lib := $(my_ndk_sysroot)/usr/lib
  endif

  # The bionic linker now has support for packed relocations and gnu style
  # hashes (which are much faster!), but shipping to older devices requires
  # the old style hash. Fortunately, we can build with both and it'll work
  # anywhere.
  #
  # This is not currently supported on MIPS architectures.
  ifeq (,$(filter mips mips64,$(TARGET_$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH)))
    my_ldflags += -Wl,--hash-style=both
  endif

  # We don't want to expose the relocation packer to the NDK just yet.
  LOCAL_PACK_MODULE_RELOCATIONS := false

  # Set up the NDK stl variant. Starting from NDK-r5 the c++ stl resides in a separate location.
  # See ndk/docs/CPLUSPLUS-SUPPORT.html
  my_ndk_stl_include_path :=
  my_ndk_stl_shared_lib_fullpath :=
  my_ndk_stl_shared_lib :=
  my_ndk_stl_static_lib :=
  my_ndk_stl_cppflags :=
  my_cpu_variant := $(TARGET_$(LOCAL_2ND_ARCH_VAR_PREFIX)CPU_ABI)
  ifeq (mips32r6,$(TARGET_$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH_VARIANT))
    my_cpu_variant := mips32r6
  endif
  LOCAL_NDK_STL_VARIANT := $(strip $(LOCAL_NDK_STL_VARIANT))
  ifeq (,$(LOCAL_NDK_STL_VARIANT))
    LOCAL_NDK_STL_VARIANT := system
  endif
  ifneq (1,$(words $(filter none system stlport_static stlport_shared c++_static c++_shared gnustl_static, $(LOCAL_NDK_STL_VARIANT))))
    $(error $(LOCAL_PATH): Unknown LOCAL_NDK_STL_VARIANT $(LOCAL_NDK_STL_VARIANT))
  endif
  ifeq (system,$(LOCAL_NDK_STL_VARIANT))
    my_ndk_stl_include_path := $(my_ndk_source_root)/cxx-stl/system/include
    my_system_shared_libraries += libstdc++
  else # LOCAL_NDK_STL_VARIANT is not system
  ifneq (,$(filter stlport_%, $(LOCAL_NDK_STL_VARIANT)))
    my_ndk_stl_include_path := $(my_ndk_source_root)/cxx-stl/stlport/stlport
    my_system_shared_libraries += libstdc++
    ifeq (stlport_static,$(LOCAL_NDK_STL_VARIANT))
      my_ndk_stl_static_lib := $(my_ndk_source_root)/cxx-stl/stlport/libs/$(my_cpu_variant)/libstlport_static.a
    else
      my_ndk_stl_shared_lib_fullpath := $(my_ndk_source_root)/cxx-stl/stlport/libs/$(my_cpu_variant)/libstlport_shared.so
      my_ndk_stl_shared_lib := -lstlport_shared
    endif
  else # LOCAL_NDK_STL_VARIANT is not stlport_* either
  ifneq (,$(filter c++_%, $(LOCAL_NDK_STL_VARIANT)))
    my_ndk_stl_include_path := $(my_ndk_source_root)/cxx-stl/llvm-libc++/libcxx/include \
                               $(my_ndk_source_root)/cxx-stl/llvm-libc++/gabi++/include \
                               $(my_ndk_source_root)/android/support/include
    ifeq (c++_static,$(LOCAL_NDK_STL_VARIANT))
      my_ndk_stl_static_lib := $(my_ndk_source_root)/cxx-stl/llvm-libc++/libs/$(my_cpu_variant)/libc++_static.a
    else
      my_ndk_stl_shared_lib_fullpath := $(my_ndk_source_root)/cxx-stl/llvm-libc++/libs/$(my_cpu_variant)/libc++_shared.so
      my_ndk_stl_shared_lib := -lc++_shared
    endif
    my_ndk_stl_cppflags := -std=c++11
  else # LOCAL_NDK_STL_VARIANT is not c++_* either
  ifneq (,$(filter gnustl_%, $(LOCAL_NDK_STL_VARIANT)))
    my_ndk_stl_include_path := $(my_ndk_source_root)/cxx-stl/gnu-libstdc++/$($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_NDK_GCC_VERSION)/libs/$(my_cpu_variant)/include \
                               $(my_ndk_source_root)/cxx-stl/gnu-libstdc++/$($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_NDK_GCC_VERSION)/include
    my_ndk_stl_static_lib := $(my_ndk_source_root)/cxx-stl/gnu-libstdc++/$($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_NDK_GCC_VERSION)/libs/$(my_cpu_variant)/libgnustl_static.a
  else # LOCAL_NDK_STL_VARIANT must be none
    # Do nothing.
  endif
  endif
  endif
  endif
endif

# MinGW spits out warnings about -fPIC even for -fpie?!) being ignored because
# all code is position independent, and then those warnings get promoted to
# errors.
ifneq ($($(my_prefix)OS),windows)
ifeq ($(LOCAL_MODULE_CLASS),EXECUTABLES)
my_cflags += -fpie
else
my_cflags += -fPIC
endif
endif

ifdef LOCAL_IS_HOST_MODULE
my_src_files += $(LOCAL_SRC_FILES_$($(my_prefix)OS)) $(LOCAL_SRC_FILES_$($(my_prefix)OS)_$($(my_prefix)$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH))
my_static_libraries += $(LOCAL_STATIC_LIBRARIES_$($(my_prefix)OS))
my_shared_libraries += $(LOCAL_SHARED_LIBRARIES_$($(my_prefix)OS))
my_cflags += $(LOCAL_CFLAGS_$($(my_prefix)OS))
my_cppflags += $(LOCAL_CPPFLAGS_$($(my_prefix)OS))
my_ldflags += $(LOCAL_LDFLAGS_$($(my_prefix)OS))
my_ldlibs += $(LOCAL_LDLIBS_$($(my_prefix)OS))
my_asflags += $(LOCAL_ASFLAGS_$($(my_prefix)OS))
my_c_includes += $(LOCAL_C_INCLUDES_$($(my_prefix)OS))
my_generated_sources += $(LOCAL_GENERATED_SOURCES_$($(my_prefix)OS))
endif

my_src_files += $(LOCAL_SRC_FILES_$($(my_prefix)$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH)) $(LOCAL_SRC_FILES_$(my_32_64_bit_suffix))
my_src_files_exclude += $(LOCAL_SRC_FILES_EXCLUDE_$($(my_prefix)$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH)) $(LOCAL_SRC_FILES_EXCLUDE_$(my_32_64_bit_suffix))
my_shared_libraries += $(LOCAL_SHARED_LIBRARIES_$($(my_prefix)$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH)) $(LOCAL_SHARED_LIBRARIES_$(my_32_64_bit_suffix))
my_cflags += $(LOCAL_CFLAGS_$($(my_prefix)$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH)) $(LOCAL_CFLAGS_$(my_32_64_bit_suffix))
my_cppflags += $(LOCAL_CPPFLAGS_$($(my_prefix)$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH)) $(LOCAL_CPPFLAGS_$(my_32_64_bit_suffix))
my_ldflags += $(LOCAL_LDFLAGS_$($(my_prefix)$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH)) $(LOCAL_LDFLAGS_$(my_32_64_bit_suffix))
my_asflags += $(LOCAL_ASFLAGS_$($(my_prefix)$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH)) $(LOCAL_ASFLAGS_$(my_32_64_bit_suffix))
my_c_includes += $(LOCAL_C_INCLUDES_$($(my_prefix)$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH)) $(LOCAL_C_INCLUDES_$(my_32_64_bit_suffix))
my_generated_sources += $(LOCAL_GENERATED_SOURCES_$($(my_prefix)$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH)) $(LOCAL_GENERATED_SOURCES_$(my_32_64_bit_suffix))

my_missing_exclude_files := $(filter-out $(my_src_files),$(my_src_files_exclude))
ifneq ($(my_missing_exclude_files),)
$(warning Files are listed in LOCAL_SRC_FILES_EXCLUDE but not LOCAL_SRC_FILES)
$(error $(my_missing_exclude_files))
endif
my_src_files := $(filter-out $(my_src_files_exclude),$(my_src_files))

my_clang := $(strip $(LOCAL_CLANG))
ifdef LOCAL_CLANG_$(my_32_64_bit_suffix)
my_clang := $(strip $(LOCAL_CLANG_$(my_32_64_bit_suffix)))
endif
ifdef LOCAL_CLANG_$($(my_prefix)$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH)
my_clang := $(strip $(LOCAL_CLANG_$($(my_prefix)$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH)))
endif

# clang is enabled by default for host builds
# enable it unless we've specifically disabled clang above
ifdef LOCAL_IS_HOST_MODULE
    ifneq ($($(my_prefix)OS),windows)
    ifeq ($(my_clang),)
        my_clang := true
    endif
    endif
# Add option to make clang the default for device build
else ifeq ($(USE_CLANG_PLATFORM_BUILD),true)
    ifeq ($(my_clang),)
        my_clang := true
    endif
endif

my_cpp_std_version := -std=gnu++14

ifneq ($(my_clang),true)
    # GCC uses an invalid C++14 ABI (emits calls to
    # __cxa_throw_bad_array_length, which is not a valid C++ RT ABI).
    # http://b/25022512
    my_cpp_std_version := -std=gnu++11
endif

ifdef LOCAL_SDK_VERSION
    # The NDK handles this itself.
    my_cpp_std_version :=
endif

ifdef LOCAL_IS_HOST_MODULE
    ifneq ($(my_clang),true)
        # The host GCC doesn't support C++14 (and is deprecated, so likely
        # never will). Build these modules with C++11.
        my_cpp_std_version := -std=gnu++11
    endif
endif

my_cppflags := $(my_cpp_std_version) $(my_cppflags)


# arch-specific static libraries go first so that generic ones can depend on them
my_static_libraries := $(LOCAL_STATIC_LIBRARIES_$($(my_prefix)$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH)) $(LOCAL_STATIC_LIBRARIES_$(my_32_64_bit_suffix)) $(my_static_libraries)
my_whole_static_libraries := $(LOCAL_WHOLE_STATIC_LIBRARIES_$($(my_prefix)$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH)) $(LOCAL_WHOLE_STATIC_LIBRARIES_$(my_32_64_bit_suffix)) $(my_whole_static_libraries)

include $(BUILD_SYSTEM)/cxx_stl_setup.mk

# Add static HAL libraries
ifdef LOCAL_HAL_STATIC_LIBRARIES
$(foreach lib, $(LOCAL_HAL_STATIC_LIBRARIES), \
    $(eval b_lib := $(filter $(lib).%,$(BOARD_HAL_STATIC_LIBRARIES)))\
    $(if $(b_lib), $(eval my_static_libraries += $(b_lib)),\
                   $(eval my_static_libraries += $(lib).default)))
b_lib :=
endif

ifneq ($(strip $(CUSTOM_$(my_prefix)$(LOCAL_2ND_ARCH_VAR_PREFIX)LINKER)),)
  my_linker := $(CUSTOM_$(my_prefix)$(LOCAL_2ND_ARCH_VAR_PREFIX)LINKER)
else
  my_linker := $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_LINKER)
endif

include $(BUILD_SYSTEM)/config_sanitizers.mk

# Add in libcompiler_rt for all regular device builds
ifeq (,$(LOCAL_SDK_VERSION)$(WITHOUT_LIBCOMPILER_RT))
  my_static_libraries += $(COMPILER_RT_CONFIG_EXTRA_STATIC_LIBRARIES)
endif

####################################################
## Add FDO flags if FDO is turned on and supported
## Please note that we will do option filtering during FDO build.
## i.e. Os->O2, remove -fno-early-inline and -finline-limit.
##################################################################
my_fdo_build :=
ifneq ($(filter true always, $(LOCAL_FDO_SUPPORT)),)
  ifeq ($(BUILD_FDO_INSTRUMENT),true)
    my_cflags += $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_FDO_INSTRUMENT_CFLAGS)
    my_ldflags += $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_FDO_INSTRUMENT_LDFLAGS)
    my_fdo_build := true
  else ifneq ($(filter true,$(BUILD_FDO_OPTIMIZE))$(filter always,$(LOCAL_FDO_SUPPORT)),)
    my_cflags += $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_FDO_OPTIMIZE_CFLAGS)
    my_fdo_build := true
  endif
  # Disable ccache (or other compiler wrapper) except gomacc, which
  # can handle -fprofile-use properly.
  my_cc_wrapper := $(filter $(GOMA_CC),$(my_cc_wrapper))
  my_cxx_wrapper := $(filter $(GOMA_CC),$(my_cxx_wrapper))
endif

###########################################################
## Explicitly declare assembly-only __ASSEMBLY__ macro for
## assembly source
###########################################################
my_asflags += -D__ASSEMBLY__


###########################################################
## Define PRIVATE_ variables from global vars
###########################################################
ifndef LOCAL_IS_HOST_MODULE
ifdef LOCAL_SDK_VERSION
my_target_project_includes :=
my_target_c_includes := $(my_ndk_stl_include_path) $(my_ndk_sysroot_include)
my_target_global_cppflags := $(my_ndk_stl_cppflags)
else
my_target_project_includes := $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_PROJECT_INCLUDES)
my_target_c_includes := $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_C_INCLUDES)
my_target_global_cppflags :=
endif # LOCAL_SDK_VERSION

ifeq ($(my_clang),true)
my_target_global_cflags := $($(LOCAL_2ND_ARCH_VAR_PREFIX)CLANG_TARGET_GLOBAL_CFLAGS)
my_target_global_conlyflags := $($(LOCAL_2ND_ARCH_VAR_PREFIX)CLANG_TARGET_GLOBAL_CONLYFLAGS)
my_target_global_cppflags += $($(LOCAL_2ND_ARCH_VAR_PREFIX)CLANG_TARGET_GLOBAL_CPPFLAGS)
my_target_global_ldflags := $($(LOCAL_2ND_ARCH_VAR_PREFIX)CLANG_TARGET_GLOBAL_LDFLAGS)
else
my_target_global_cflags := $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_GLOBAL_CFLAGS)
my_target_global_conlyflags := $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_GLOBAL_CONLYFLAGS)
my_target_global_cppflags += $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_GLOBAL_CPPFLAGS)
my_target_global_ldflags := $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_GLOBAL_LDFLAGS)
endif # my_clang

$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_TARGET_PROJECT_INCLUDES := $(my_target_project_includes)
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_TARGET_C_INCLUDES := $(my_target_c_includes)
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_TARGET_GLOBAL_CFLAGS := $(my_target_global_cflags)
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_TARGET_GLOBAL_CONLYFLAGS := $(my_target_global_conlyflags)
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_TARGET_GLOBAL_CPPFLAGS := $(my_target_global_cppflags)
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_TARGET_GLOBAL_LDFLAGS := $(my_target_global_ldflags)

else # LOCAL_IS_HOST_MODULE

ifeq ($(my_clang),true)
my_host_global_cflags := $($(LOCAL_2ND_ARCH_VAR_PREFIX)CLANG_$(my_prefix)GLOBAL_CFLAGS)
my_host_global_conlyflags := $($(LOCAL_2ND_ARCH_VAR_PREFIX)CLANG_$(my_prefix)GLOBAL_CONLYFLAGS)
my_host_global_cppflags := $($(LOCAL_2ND_ARCH_VAR_PREFIX)CLANG_$(my_prefix)GLOBAL_CPPFLAGS)
my_host_global_ldflags := $($(LOCAL_2ND_ARCH_VAR_PREFIX)CLANG_$(my_prefix)GLOBAL_LDFLAGS)
my_host_c_includes := $($(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)C_INCLUDES)
else
my_host_global_cflags := $($(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)GLOBAL_CFLAGS)
my_host_global_conlyflags := $($(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)GLOBAL_CONLYFLAGS)
my_host_global_cppflags := $($(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)GLOBAL_CPPFLAGS)
my_host_global_ldflags := $($(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)GLOBAL_LDFLAGS)
my_host_c_includes := $($(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)C_INCLUDES)
endif # my_clang

$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_HOST_C_INCLUDES := $(my_host_c_includes)
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_HOST_GLOBAL_CFLAGS := $(my_host_global_cflags)
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_HOST_GLOBAL_CONLYFLAGS := $(my_host_global_conlyflags)
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_HOST_GLOBAL_CPPFLAGS := $(my_host_global_cppflags)
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_HOST_GLOBAL_LDFLAGS := $(my_host_global_ldflags)
endif # LOCAL_IS_HOST_MODULE

# To enable coverage for a given module, set LOCAL_NATIVE_COVERAGE=true and
# build with NATIVE_COVERAGE=true in your enviornment. Note that the build
# system is not sensitive to changes to NATIVE_COVERAGE, so you should do a
# clean build of your module after toggling it.
ifeq ($(NATIVE_COVERAGE),true)
    ifeq ($(my_native_coverage),true)
        # Note that clang coverage doesn't play nicely with acov out of the box.
        # Clang apparently generates .gcno files that aren't compatible with
        # gcov-4.8.  This can be solved by installing gcc-4.6 and invoking lcov
        # with `--gcov-tool /usr/bin/gcov-4.6`.
        #
        # http://stackoverflow.com/questions/17758126/clang-code-coverage-invalid-output
        my_cflags += --coverage -O0
        my_ldflags += --coverage
    endif
else
    my_native_coverage := false
endif

ifeq ($(my_clang),true)
    my_coverage_lib := $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_LIBPROFILE_RT)
else
    my_coverage_lib := $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_LIBGCOV)
endif

$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_TARGET_COVERAGE_LIB := $(my_coverage_lib)

###########################################################
## Define PRIVATE_ variables used by multiple module types
###########################################################
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_NO_DEFAULT_COMPILER_FLAGS := \
    $(strip $(LOCAL_NO_DEFAULT_COMPILER_FLAGS))

ifeq ($(strip $(WITH_SYNTAX_CHECK)),)
  LOCAL_NO_SYNTAX_CHECK := true
endif

ifeq ($(strip $(WITH_STATIC_ANALYZER)),)
  LOCAL_NO_STATIC_ANALYZER := true
endif

ifneq ($(strip $(LOCAL_IS_HOST_MODULE)),)
  my_syntax_arch := host
else
  my_syntax_arch := $(TARGET_$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH)
endif

ifeq ($(strip $(my_cc)),)
  ifeq ($(my_clang),true)
    my_cc := $(CLANG)
  else
    my_cc := $($(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)CC)
  endif
  my_cc := $(my_cc_wrapper) $(my_cc)
endif
ifneq ($(LOCAL_NO_STATIC_ANALYZER),true)
  my_cc := $(SYNTAX_TOOLS_PREFIX)/ccc-analyzer $(my_syntax_arch) "$(my_cc)"
else
ifneq ($(LOCAL_NO_SYNTAX_CHECK),true)
  my_cc := $(SYNTAX_TOOLS_PREFIX)/ccc-syntax $(my_syntax_arch) "$(my_cc)"
endif
endif
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_CC := $(my_cc)

ifeq ($(strip $(my_cxx)),)
  ifeq ($(my_clang),true)
    my_cxx := $(CLANG_CXX)
  else
    my_cxx := $($(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)CXX)
  endif
  my_cxx := $(my_cxx_wrapper) $(my_cxx)
endif
ifneq ($(LOCAL_NO_STATIC_ANALYZER),true)
  my_cxx := $(SYNTAX_TOOLS_PREFIX)/cxx-analyzer $(my_syntax_arch) "$(my_cxx)"
else
ifneq ($(LOCAL_NO_SYNTAX_CHECK),true)
  my_cxx := $(SYNTAX_TOOLS_PREFIX)/cxx-syntax $(my_syntax_arch) "$(my_cxx)"
endif
endif
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_LINKER := $(my_linker)
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_CXX := $(my_cxx)
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_CLANG := $(my_clang)

# TODO: support a mix of standard extensions so that this isn't necessary
LOCAL_CPP_EXTENSION := $(strip $(LOCAL_CPP_EXTENSION))
ifeq ($(LOCAL_CPP_EXTENSION),)
  LOCAL_CPP_EXTENSION := .cpp
endif
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_CPP_EXTENSION := $(LOCAL_CPP_EXTENSION)

# Certain modules like libdl have to have symbols resolved at runtime and blow
# up if --no-undefined is passed to the linker.
ifeq ($(strip $(LOCAL_NO_DEFAULT_COMPILER_FLAGS)),)
ifeq ($(my_allow_undefined_symbols),)
  my_ldflags +=  $($(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)NO_UNDEFINED_LDFLAGS)
endif
endif

ifeq (true,$(LOCAL_GROUP_STATIC_LIBRARIES))
$(LOCAL_BUILT_MODULE): PRIVATE_GROUP_STATIC_LIBRARIES := true
else
$(LOCAL_BUILT_MODULE): PRIVATE_GROUP_STATIC_LIBRARIES :=
endif

###########################################################
## Define arm-vs-thumb-mode flags.
###########################################################
LOCAL_ARM_MODE := $(strip $(LOCAL_ARM_MODE))
ifeq ($($(my_prefix)$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH),arm)
arm_objects_mode := $(if $(LOCAL_ARM_MODE),$(LOCAL_ARM_MODE),arm)
normal_objects_mode := $(if $(LOCAL_ARM_MODE),$(LOCAL_ARM_MODE),thumb)

# Read the values from something like TARGET_arm_CFLAGS or
# TARGET_thumb_CFLAGS.  HOST_(arm|thumb)_CFLAGS values aren't
# actually used (although they are usually empty).
arm_objects_cflags := $($(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)$(arm_objects_mode)_CFLAGS)
normal_objects_cflags := $($(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)$(normal_objects_mode)_CFLAGS)
ifeq ($(my_clang),true)
arm_objects_cflags := $(call $(LOCAL_2ND_ARCH_VAR_PREFIX)convert-to-$(my_host)clang-flags,$(arm_objects_cflags))
normal_objects_cflags := $(call $(LOCAL_2ND_ARCH_VAR_PREFIX)convert-to-$(my_host)clang-flags,$(normal_objects_cflags))
endif

else
arm_objects_mode :=
normal_objects_mode :=
arm_objects_cflags :=
normal_objects_cflags :=
endif

###########################################################
## Define per-module debugging flags.  Users can turn on
## debugging for a particular module by setting DEBUG_MODULE_ModuleName
## to a non-empty value in their environment or buildspec.mk,
## and setting HOST_/TARGET_CUSTOM_DEBUG_CFLAGS to the
## debug flags that they want to use.
###########################################################
ifdef DEBUG_MODULE_$(strip $(LOCAL_MODULE))
  debug_cflags := $($(my_prefix)CUSTOM_DEBUG_CFLAGS)
else
  debug_cflags :=
endif

####################################################
## Compile RenderScript with reflected C++
####################################################

renderscript_sources := $(filter %.rs %.fs,$(my_src_files))

ifneq (,$(renderscript_sources))

renderscript_sources_fullpath := $(addprefix $(LOCAL_PATH)/, $(renderscript_sources))
RenderScript_file_stamp := $(intermediates)/RenderScriptCPP.stamp
renderscript_intermediate := $(intermediates)/renderscript

renderscript_target_api :=

ifneq (,$(LOCAL_RENDERSCRIPT_TARGET_API))
renderscript_target_api := $(LOCAL_RENDERSCRIPT_TARGET_API)
else
ifneq (,$(LOCAL_SDK_VERSION))
# Set target-api for LOCAL_SDK_VERSIONs other than current.
ifneq (,$(filter-out current system_current, $(LOCAL_SDK_VERSION)))
renderscript_target_api := $(LOCAL_SDK_VERSION)
endif
endif  # LOCAL_SDK_VERSION is set
endif  # LOCAL_RENDERSCRIPT_TARGET_API is set


ifeq ($(LOCAL_RENDERSCRIPT_CC),)
LOCAL_RENDERSCRIPT_CC := $(LLVM_RS_CC)
endif

# Turn on all warnings and warnings as errors for RS compiles.
# This can be disabled with LOCAL_RENDERSCRIPT_FLAGS := -Wno-error
renderscript_flags := -Wall -Werror
renderscript_flags += $(LOCAL_RENDERSCRIPT_FLAGS)
# -m32 or -m64
renderscript_flags += -m$(my_32_64_bit_suffix)

renderscript_includes := \
    $(TOPDIR)external/clang/lib/Headers \
    $(TOPDIR)frameworks/rs/scriptc \
    $(LOCAL_RENDERSCRIPT_INCLUDES)

ifneq ($(LOCAL_RENDERSCRIPT_INCLUDES_OVERRIDE),)
renderscript_includes := $(LOCAL_RENDERSCRIPT_INCLUDES_OVERRIDE)
endif

bc_dep_files := $(addprefix $(renderscript_intermediate)/, \
    $(patsubst %.fs,%.d, $(patsubst %.rs,%.d, $(notdir $(renderscript_sources)))))

$(RenderScript_file_stamp): PRIVATE_RS_INCLUDES := $(renderscript_includes)
$(RenderScript_file_stamp): PRIVATE_RS_CC := $(LOCAL_RENDERSCRIPT_CC)
$(RenderScript_file_stamp): PRIVATE_RS_FLAGS := $(renderscript_flags)
$(RenderScript_file_stamp): PRIVATE_RS_SOURCE_FILES := $(renderscript_sources_fullpath)
$(RenderScript_file_stamp): PRIVATE_RS_OUTPUT_DIR := $(renderscript_intermediate)
$(RenderScript_file_stamp): PRIVATE_RS_TARGET_API := $(renderscript_target_api)
$(RenderScript_file_stamp): PRIVATE_DEP_FILES := $(bc_dep_files)
$(RenderScript_file_stamp): $(renderscript_sources_fullpath) $(LOCAL_RENDERSCRIPT_CC)
	$(transform-renderscripts-to-cpp-and-bc)

# include the dependency files (.d/.P) generated by llvm-rs-cc.
-include $(bc_dep_files:%.d=%.P)

LOCAL_INTERMEDIATE_TARGETS += $(RenderScript_file_stamp)

rs_generated_cpps := $(addprefix \
    $(renderscript_intermediate)/ScriptC_,$(patsubst %.fs,%.cpp, $(patsubst %.rs,%.cpp, \
    $(notdir $(renderscript_sources)))))

# This is just a dummy rule to make sure gmake doesn't skip updating the dependents.
$(rs_generated_cpps) : $(RenderScript_file_stamp)
	@echo "Updated RS generated cpp file $@."
	$(hide) touch $@

my_c_includes += $(renderscript_intermediate)
my_generated_sources += $(rs_generated_cpps)

endif


###########################################################
## Stuff source generated from one-off tools
###########################################################
$(my_generated_sources): PRIVATE_MODULE := $(my_register_name)

my_gen_sources_copy := $(patsubst $(generated_sources_dir)/%,$(intermediates)/%,$(filter $(generated_sources_dir)/%,$(my_generated_sources)))

$(my_gen_sources_copy): $(intermediates)/% : $(generated_sources_dir)/% | $(ACP)
	@echo "Copy: $@"
	$(copy-file-to-target)

my_generated_sources := $(patsubst $(generated_sources_dir)/%,$(intermediates)/%,$(my_generated_sources))

ALL_GENERATED_SOURCES += $(my_generated_sources)

###########################################################
## Compile the .proto files to .cc (or .c) and then to .o
###########################################################
proto_sources := $(filter %.proto,$(my_src_files))
proto_generated_objects :=
proto_generated_headers :=
ifneq ($(proto_sources),)
proto_generated_sources_dir := $(generated_sources_dir)/proto
proto_generated_obj_dir := $(intermediates)/proto

ifneq (,$(filter nanopb-c nanopb-c-enable_malloc, $(LOCAL_PROTOC_OPTIMIZE_TYPE)))
my_proto_source_suffix := .c
my_proto_c_includes := external/nanopb-c
my_protoc_flags := --nanopb_out=$(proto_generated_sources_dir) \
    --plugin=external/nanopb-c/generator/protoc-gen-nanopb
else
my_proto_source_suffix := .cc
my_proto_c_includes := external/protobuf/src
my_cflags += -DGOOGLE_PROTOBUF_NO_RTTI
my_protoc_flags := --cpp_out=$(proto_generated_sources_dir)
endif
my_proto_c_includes += $(proto_generated_sources_dir)

proto_sources_fullpath := $(addprefix $(LOCAL_PATH)/, $(proto_sources))
proto_generated_sources := $(addprefix $(proto_generated_sources_dir)/, \
    $(patsubst %.proto,%.pb$(my_proto_source_suffix),$(proto_sources_fullpath)))
proto_generated_headers := $(patsubst %.pb$(my_proto_source_suffix),%.pb.h, $(proto_generated_sources))
proto_generated_objects := $(addprefix $(proto_generated_obj_dir)/, \
    $(patsubst %.proto,%.pb.o,$(proto_sources_fullpath)))

# Ensure the transform-proto-to-cc rule is only defined once in multilib build.
ifndef $(my_prefix)_$(LOCAL_MODULE_CLASS)_$(LOCAL_MODULE)_proto_defined
$(proto_generated_sources): PRIVATE_PROTO_INCLUDES := $(TOP)
$(proto_generated_sources): PRIVATE_PROTOC_FLAGS := $(LOCAL_PROTOC_FLAGS) $(my_protoc_flags)
$(proto_generated_sources): $(proto_generated_sources_dir)/%.pb$(my_proto_source_suffix): %.proto $(PROTOC)
	$(transform-proto-to-cc)

# This is just a dummy rule to make sure gmake doesn't skip updating the dependents.
$(proto_generated_headers): $(proto_generated_sources_dir)/%.pb.h: $(proto_generated_sources_dir)/%.pb$(my_proto_source_suffix)
	@echo "Updated header file $@."
	$(hide) touch $@

$(my_prefix)_$(LOCAL_MODULE_CLASS)_$(LOCAL_MODULE)_proto_defined := true
endif  # transform-proto-to-cc rule included only once

$(proto_generated_objects): PRIVATE_ARM_MODE := $(normal_objects_mode)
$(proto_generated_objects): PRIVATE_ARM_CFLAGS := $(normal_objects_cflags)
$(proto_generated_objects): $(proto_generated_obj_dir)/%.o: $(proto_generated_sources_dir)/%$(my_proto_source_suffix) $(proto_generated_headers)
ifeq ($(my_proto_source_suffix),.c)
	$(transform-$(PRIVATE_HOST)c-to-o)
else
	$(transform-$(PRIVATE_HOST)cpp-to-o)
endif
-include $(proto_generated_objects:%.o=%.P)

my_c_includes += $(my_proto_c_includes)
# Auto-export the generated proto source dir.
my_export_c_include_dirs += $(my_proto_c_includes)

ifeq ($(LOCAL_PROTOC_OPTIMIZE_TYPE),nanopb-c-enable_malloc)
    my_static_libraries += libprotobuf-c-nano-enable_malloc
else ifeq ($(LOCAL_PROTOC_OPTIMIZE_TYPE),nanopb-c)
    my_static_libraries += libprotobuf-c-nano
else ifeq ($(LOCAL_PROTOC_OPTIMIZE_TYPE),full)
    ifdef LOCAL_SDK_VERSION
        my_static_libraries += libprotobuf-cpp-full-ndk
    else
        my_shared_libraries += libprotobuf-cpp-full
    endif
else
    ifdef LOCAL_SDK_VERSION
        my_static_libraries += libprotobuf-cpp-lite-ndk
    else
        my_shared_libraries += libprotobuf-cpp-lite
    endif
endif
endif  # $(proto_sources) non-empty

###########################################################
## Compile the .dbus-xml files to c++ headers
###########################################################
dbus_definitions := $(filter %.dbus-xml,$(my_src_files))
dbus_generated_headers :=
ifneq ($(dbus_definitions),)

dbus_definition_paths := $(addprefix $(LOCAL_PATH)/,$(dbus_definitions))
dbus_service_config := $(filter %dbus-service-config.json,$(my_src_files))
dbus_service_config_path := $(addprefix $(LOCAL_PATH)/,$(dbus_service_config))

dbus_gen_dir := $(generated_sources_dir)/dbus_bindings

ifdef LOCAL_DBUS_PROXY_PREFIX
dbus_header_dir := $(dbus_gen_dir)/include/$(LOCAL_DBUS_PROXY_PREFIX)
dbus_headers := dbus-proxies.h
else
dbus_header_dir := $(dbus_gen_dir)
dbus_headers := $(patsubst %.dbus-xml,%.h,$(dbus_definitions))
endif
dbus_generated_headers := $(addprefix $(dbus_header_dir)/,$(dbus_headers))

# Ensure that we only define build rules once in multilib builds.
ifndef $(my_prefix)_$(LOCAL_MODULE_CLASS)_$(LOCAL_MODULE)_dbus_bindings_defined
$(my_prefix)_$(LOCAL_MODULE_CLASS)_$(LOCAL_MODULE)_dbus_bindings_defined := true

$(dbus_generated_headers): PRIVATE_MODULE := $(LOCAL_MODULE)
$(dbus_generated_headers): PRIVATE_DBUS_SERVICE_CONFIG := $(dbus_service_config_path)
$(dbus_generated_headers) : $(dbus_service_config_path) $(DBUS_GENERATOR)
ifdef LOCAL_DBUS_PROXY_PREFIX
$(dbus_generated_headers) : $(dbus_definition_paths)
	$(generate-dbus-proxies)
else
$(dbus_generated_headers) : $(dbus_header_dir)/%.h : $(LOCAL_PATH)/%.dbus-xml
	$(generate-dbus-adaptors)
endif  # $(LOCAL_DBUS_PROXY_PREFIX)
endif  # $(my_prefix)_$(LOCAL_MODULE_CLASS)_$(LOCAL_MODULE)_dbus_bindings_defined

ifdef LOCAL_DBUS_PROXY_PREFIX
# Auto-export the generated dbus proxy directory.
my_export_c_include_dirs += $(dbus_gen_dir)/include
my_c_includes += $(dbus_gen_dir)/include
else
my_export_c_include_dirs += $(dbus_header_dir)
my_c_includes += $(dbus_header_dir)
endif  # $(LOCAL_DBUS_PROXY_PREFIX)

my_generated_sources += $(dbus_generated_headers)

endif  # $(dbus_definitions) non-empty


###########################################################
## AIDL: Compile .aidl files to .cpp and .h files
###########################################################
aidl_src := $(strip $(filter %.aidl,$(my_src_files)))
aidl_gen_cpp :=
ifneq ($(aidl_src),)

aidl_gen_cpp_root := $(intermediates)/aidl-generated/src
aidl_gen_include_root := $(intermediates)/aidl-generated/include

aidl_gen_cpp := $(patsubst %.aidl,%$(LOCAL_CPP_EXTENSION),$(aidl_src))
aidl_gen_cpp := $(addprefix $(aidl_gen_cpp_root)/,$(aidl_gen_cpp))

# TODO(wiley): we could pass down a flag here to only generate the server or
#              client side of the binder interface.
$(aidl_gen_cpp) : PRIVATE_MODULE := $(LOCAL_MODULE)
$(aidl_gen_cpp) : PRIVATE_HEADER_OUTPUT_DIR := $(aidl_gen_include_root)
$(aidl_gen_cpp) : PRIVATE_AIDL_FLAGS := $(addprefix -I,$(LOCAL_AIDL_INCLUDES))

# Multi-architecture builds have distinct intermediates directories.
# Define rules for both architectures.
$(aidl_gen_cpp) : $(aidl_gen_cpp_root)/%$(LOCAL_CPP_EXTENSION) : $(LOCAL_PATH)/%.aidl $(AIDL_CPP)
	$(transform-aidl-to-cpp)
-include $(addsuffix .P,$(basename $(aidl_gen_cpp)))

# Add generated headers to include paths.
my_c_includes += $(aidl_gen_include_root)
my_export_c_include_dirs += $(aidl_gen_include_root)
# Pick up the generated C++ files later for transformation to .o files.
my_generated_sources += $(aidl_gen_cpp)

endif  # $(aidl_src) non-empty

###########################################################
## YACC: Compile .y and .yy files to .cpp and the to .o.
###########################################################

y_yacc_sources := $(filter %.y,$(my_src_files))
y_yacc_cpps := $(addprefix \
    $(intermediates)/,$(y_yacc_sources:.y=$(LOCAL_CPP_EXTENSION)))

yy_yacc_sources := $(filter %.yy,$(my_src_files))
yy_yacc_cpps := $(addprefix \
    $(intermediates)/,$(yy_yacc_sources:.yy=$(LOCAL_CPP_EXTENSION)))

yacc_cpps := $(y_yacc_cpps) $(yy_yacc_cpps)
yacc_headers := $(yacc_cpps:$(LOCAL_CPP_EXTENSION)=.h)
yacc_objects := $(yacc_cpps:$(LOCAL_CPP_EXTENSION)=.o)

ifneq ($(strip $(y_yacc_cpps)),)
$(y_yacc_cpps): $(intermediates)/%$(LOCAL_CPP_EXTENSION): \
    $(TOPDIR)$(LOCAL_PATH)/%.y \
    $(lex_cpps) $(my_additional_dependencies)
	$(call transform-y-to-cpp,$(PRIVATE_CPP_EXTENSION))
$(yacc_headers): $(intermediates)/%.h: $(intermediates)/%$(LOCAL_CPP_EXTENSION)
endif

ifneq ($(strip $(yy_yacc_cpps)),)
$(yy_yacc_cpps): $(intermediates)/%$(LOCAL_CPP_EXTENSION): \
    $(TOPDIR)$(LOCAL_PATH)/%.yy \
    $(lex_cpps) $(my_additional_dependencies)
	$(call transform-y-to-cpp,$(PRIVATE_CPP_EXTENSION))
$(yacc_headers): $(intermediates)/%.h: $(intermediates)/%$(LOCAL_CPP_EXTENSION)
endif

ifneq ($(strip $(yacc_cpps)),)
$(yacc_objects): PRIVATE_ARM_MODE := $(normal_objects_mode)
$(yacc_objects): PRIVATE_ARM_CFLAGS := $(normal_objects_cflags)
$(yacc_objects): $(intermediates)/%.o: $(intermediates)/%$(LOCAL_CPP_EXTENSION)
	$(transform-$(PRIVATE_HOST)cpp-to-o)
endif

###########################################################
## LEX: Compile .l and .ll files to .cpp and then to .o.
###########################################################

l_lex_sources := $(filter %.l,$(my_src_files))
l_lex_cpps := $(addprefix \
    $(intermediates)/,$(l_lex_sources:.l=$(LOCAL_CPP_EXTENSION)))

ll_lex_sources := $(filter %.ll,$(my_src_files))
ll_lex_cpps := $(addprefix \
    $(intermediates)/,$(ll_lex_sources:.ll=$(LOCAL_CPP_EXTENSION)))

lex_cpps := $(l_lex_cpps) $(ll_lex_cpps)
lex_objects := $(lex_cpps:$(LOCAL_CPP_EXTENSION)=.o)

ifneq ($(strip $(l_lex_cpps)),)
$(l_lex_cpps): $(intermediates)/%$(LOCAL_CPP_EXTENSION): \
    $(TOPDIR)$(LOCAL_PATH)/%.l
	$(transform-l-to-cpp)
endif

ifneq ($(strip $(ll_lex_cpps)),)
$(ll_lex_cpps): $(intermediates)/%$(LOCAL_CPP_EXTENSION): \
    $(TOPDIR)$(LOCAL_PATH)/%.ll
	$(transform-l-to-cpp)
endif

ifneq ($(strip $(lex_cpps)),)
$(lex_objects): PRIVATE_ARM_MODE := $(normal_objects_mode)
$(lex_objects): PRIVATE_ARM_CFLAGS := $(normal_objects_cflags)
$(lex_objects): $(intermediates)/%.o: \
    $(intermediates)/%$(LOCAL_CPP_EXTENSION) \
    $(my_additional_dependencies) \
    $(yacc_headers)
	$(transform-$(PRIVATE_HOST)cpp-to-o)
endif

###########################################################
## C++: Compile .cpp files to .o.
###########################################################

# we also do this on host modules, even though
# it's not really arm, because there are files that are shared.
cpp_arm_sources := $(patsubst %$(LOCAL_CPP_EXTENSION).arm,%$(LOCAL_CPP_EXTENSION),$(filter %$(LOCAL_CPP_EXTENSION).arm,$(my_src_files)))
dotdot_arm_sources := $(filter ../%,$(cpp_arm_sources))
cpp_arm_sources := $(filter-out ../%,$(cpp_arm_sources))
cpp_arm_objects := $(addprefix $(intermediates)/,$(cpp_arm_sources:$(LOCAL_CPP_EXTENSION)=.o))

# For source files starting with ../, we remove all the ../ in the object file path,
# to avoid object file escaping the intermediate directory.
dotdot_arm_objects :=
$(foreach s,$(dotdot_arm_sources),\
  $(eval $(call compile-dotdot-cpp-file,$(s),\
  $(yacc_cpps) $(proto_generated_headers) $(my_additional_dependencies),\
  dotdot_arm_objects)))

dotdot_sources := $(filter ../%$(LOCAL_CPP_EXTENSION),$(my_src_files))
dotdot_objects :=
$(foreach s,$(dotdot_sources),\
  $(eval $(call compile-dotdot-cpp-file,$(s),\
    $(yacc_cpps) $(proto_generated_headers) $(my_additional_dependencies),\
    dotdot_objects)))

cpp_normal_sources := $(filter-out ../%,$(filter %$(LOCAL_CPP_EXTENSION),$(my_src_files)))
cpp_normal_objects := $(addprefix $(intermediates)/,$(cpp_normal_sources:$(LOCAL_CPP_EXTENSION)=.o))

$(dotdot_arm_objects) $(cpp_arm_objects): PRIVATE_ARM_MODE := $(arm_objects_mode)
$(dotdot_arm_objects) $(cpp_arm_objects): PRIVATE_ARM_CFLAGS := $(arm_objects_cflags)
$(dotdot_objects) $(cpp_normal_objects): PRIVATE_ARM_MODE := $(normal_objects_mode)
$(dotdot_objects) $(cpp_normal_objects): PRIVATE_ARM_CFLAGS := $(normal_objects_cflags)

cpp_objects        := $(cpp_arm_objects) $(cpp_normal_objects)

ifneq ($(strip $(cpp_objects)),)
$(cpp_objects): $(intermediates)/%.o: \
    $(TOPDIR)$(LOCAL_PATH)/%$(LOCAL_CPP_EXTENSION) \
    $(yacc_cpps) $(proto_generated_headers) \
    $(my_additional_dependencies)
	$(transform-$(PRIVATE_HOST)cpp-to-o)
-include $(cpp_objects:%.o=%.P)
endif

cpp_objects += $(dotdot_arm_objects) $(dotdot_objects)

###########################################################
## C++: Compile generated .cpp files to .o.
###########################################################

gen_cpp_sources := $(filter %$(LOCAL_CPP_EXTENSION),$(my_generated_sources))
gen_cpp_objects := $(gen_cpp_sources:%$(LOCAL_CPP_EXTENSION)=%.o)

ifneq ($(strip $(gen_cpp_objects)),)
# Compile all generated files as thumb.
# TODO: support compiling certain generated files as arm.
$(gen_cpp_objects): PRIVATE_ARM_MODE := $(normal_objects_mode)
$(gen_cpp_objects): PRIVATE_ARM_CFLAGS := $(normal_objects_cflags)
$(gen_cpp_objects): $(intermediates)/%.o: \
    $(intermediates)/%$(LOCAL_CPP_EXTENSION) $(yacc_cpps) \
    $(proto_generated_headers) \
    $(my_additional_dependencies)
	$(transform-$(PRIVATE_HOST)cpp-to-o)
-include $(gen_cpp_objects:%.o=%.P)
endif

###########################################################
## S: Compile generated .S and .s files to .o.
###########################################################

gen_S_sources := $(filter %.S,$(my_generated_sources))
gen_S_objects := $(gen_S_sources:%.S=%.o)

ifneq ($(strip $(gen_S_sources)),)
$(gen_S_objects): $(intermediates)/%.o: $(intermediates)/%.S \
    $(my_additional_dependencies)
	$(transform-$(PRIVATE_HOST)s-to-o)
-include $(gen_S_objects:%.o=%.P)
endif

gen_s_sources := $(filter %.s,$(my_generated_sources))
gen_s_objects := $(gen_s_sources:%.s=%.o)

ifneq ($(strip $(gen_s_objects)),)
$(gen_s_objects): $(intermediates)/%.o: $(intermediates)/%.s \
    $(my_additional_dependencies)
	$(transform-$(PRIVATE_HOST)s-to-o-no-deps)
-include $(gen_s_objects:%.o=%.P)
endif

gen_asm_objects := $(gen_S_objects) $(gen_s_objects)

###########################################################
## o: Include generated .o files in output.
###########################################################

gen_o_objects := $(filter %.o,$(my_generated_sources))

###########################################################
## C: Compile .c files to .o.
###########################################################

c_arm_sources := $(patsubst %.c.arm,%.c,$(filter %.c.arm,$(my_src_files)))
dotdot_arm_sources := $(filter ../%,$(c_arm_sources))
c_arm_sources := $(filter-out ../%,$(c_arm_sources))
c_arm_objects := $(addprefix $(intermediates)/,$(c_arm_sources:.c=.o))

# For source files starting with ../, we remove all the ../ in the object file path,
# to avoid object file escaping the intermediate directory.
dotdot_arm_objects :=
$(foreach s,$(dotdot_arm_sources),\
  $(eval $(call compile-dotdot-c-file,$(s),\
    $(yacc_cpps) $(proto_generated_headers) $(my_additional_dependencies),\
    dotdot_arm_objects)))

dotdot_sources := $(filter ../%.c, $(my_src_files))
dotdot_objects :=
$(foreach s, $(dotdot_sources),\
  $(eval $(call compile-dotdot-c-file,$(s),\
    $(yacc_cpps) $(proto_generated_headers) $(my_additional_dependencies),\
    dotdot_objects)))

c_normal_sources := $(filter-out ../%,$(filter %.c,$(my_src_files)))
c_normal_objects := $(addprefix $(intermediates)/,$(c_normal_sources:.c=.o))

$(dotdot_arm_objects) $(c_arm_objects): PRIVATE_ARM_MODE := $(arm_objects_mode)
$(dotdot_arm_objects) $(c_arm_objects): PRIVATE_ARM_CFLAGS := $(arm_objects_cflags)
$(dotdot_objects) $(c_normal_objects): PRIVATE_ARM_MODE := $(normal_objects_mode)
$(dotdot_objects) $(c_normal_objects): PRIVATE_ARM_CFLAGS := $(normal_objects_cflags)

c_objects        := $(c_arm_objects) $(c_normal_objects)

ifneq ($(strip $(c_objects)),)
$(c_objects): $(intermediates)/%.o: $(TOPDIR)$(LOCAL_PATH)/%.c $(yacc_cpps) $(proto_generated_headers) \
    $(my_additional_dependencies)
	$(transform-$(PRIVATE_HOST)c-to-o)
-include $(c_objects:%.o=%.P)
endif

c_objects += $(dotdot_arm_objects) $(dotdot_objects)

###########################################################
## C: Compile generated .c files to .o.
###########################################################

gen_c_sources := $(filter %.c,$(my_generated_sources))
gen_c_objects := $(gen_c_sources:%.c=%.o)

ifneq ($(strip $(gen_c_objects)),)
# Compile all generated files as thumb.
# TODO: support compiling certain generated files as arm.
$(gen_c_objects): PRIVATE_ARM_MODE := $(normal_objects_mode)
$(gen_c_objects): PRIVATE_ARM_CFLAGS := $(normal_objects_cflags)
$(gen_c_objects): $(intermediates)/%.o: $(intermediates)/%.c $(yacc_cpps) $(proto_generated_headers) \
    $(my_additional_dependencies)
	$(transform-$(PRIVATE_HOST)c-to-o)
-include $(gen_c_objects:%.o=%.P)
endif

###########################################################
## ObjC: Compile .m files to .o
###########################################################

objc_sources := $(filter %.m,$(my_src_files))
objc_objects := $(addprefix $(intermediates)/,$(objc_sources:.m=.o))

ifneq ($(strip $(objc_objects)),)
$(objc_objects): $(intermediates)/%.o: $(TOPDIR)$(LOCAL_PATH)/%.m $(yacc_cpps) $(proto_generated_headers) \
    $(my_additional_dependencies)
	$(transform-$(PRIVATE_HOST)m-to-o)
-include $(objc_objects:%.o=%.P)
endif

###########################################################
## ObjC++: Compile .mm files to .o
###########################################################

objcpp_sources := $(filter %.mm,$(my_src_files))
objcpp_objects := $(addprefix $(intermediates)/,$(objcpp_sources:.mm=.o))

ifneq ($(strip $(objcpp_objects)),)
$(objcpp_objects): $(intermediates)/%.o: $(TOPDIR)$(LOCAL_PATH)/%.mm $(yacc_cpps) $(proto_generated_headers) \
    $(my_additional_dependencies)
	$(transform-$(PRIVATE_HOST)mm-to-o)
-include $(objcpp_objects:%.o=%.P)
endif

###########################################################
## AS: Compile .S files to .o.
###########################################################

asm_sources_S := $(filter %.S,$(my_src_files))
dotdot_sources := $(filter ../%,$(asm_sources_S))
asm_sources_S := $(filter-out ../%,$(asm_sources_S))
asm_objects_S := $(addprefix $(intermediates)/,$(asm_sources_S:.S=.o))

dotdot_objects_S :=
$(foreach s,$(dotdot_sources),\
  $(eval $(call compile-dotdot-s-file,$(s),\
    $(my_additional_dependencies),\
    dotdot_objects_S)))

ifneq ($(strip $(asm_objects_S)),)
$(asm_objects_S): $(intermediates)/%.o: $(TOPDIR)$(LOCAL_PATH)/%.S \
    $(my_additional_dependencies)
	$(transform-$(PRIVATE_HOST)s-to-o)
-include $(asm_objects_S:%.o=%.P)
endif

asm_sources_s := $(filter %.s,$(my_src_files))
dotdot_sources := $(filter ../%,$(asm_sources_s))
asm_sources_s := $(filter-out ../%,$(asm_sources_s))
asm_objects_s := $(addprefix $(intermediates)/,$(asm_sources_s:.s=.o))

dotdot_objects_s :=
$(foreach s,$(dotdot_sources),\
  $(eval $(call compile-dotdot-s-file-no-deps,$(s),\
    $(my_additional_dependencies),\
    dotdot_objects_s)))

ifneq ($(strip $(asm_objects_s)),)
$(asm_objects_s): $(intermediates)/%.o: $(TOPDIR)$(LOCAL_PATH)/%.s \
    $(my_additional_dependencies)
	$(transform-$(PRIVATE_HOST)s-to-o-no-deps)
endif

asm_objects := $(dotdot_objects_S) $(dotdot_objects_s) $(asm_objects_S) $(asm_objects_s)


# .asm for x86/x86_64 needs to be compiled with yasm.
asm_sources_asm := $(filter %.asm,$(my_src_files))
ifneq ($(strip $(asm_sources_asm)),)
asm_objects_asm := $(addprefix $(intermediates)/,$(asm_sources_asm:.asm=.o))
$(asm_objects_asm): $(intermediates)/%.o: $(TOPDIR)$(LOCAL_PATH)/%.asm \
    $(my_additional_dependencies)
	$(transform-asm-to-o)

asm_objects += $(asm_objects_asm)
endif


##########################################################
## Set up installed module dependency
## We cannot compute the full path of the LOCAL_SHARED_LIBRARIES for
## they may cusomize their install path with LOCAL_MODULE_PATH
##########################################################
# Get the list of INSTALLED libraries as module names.
ifdef LOCAL_SDK_VERSION
  installed_shared_library_module_names := \
      $(my_shared_libraries)
else
  installed_shared_library_module_names := \
      $(my_shared_libraries) $(my_system_shared_libraries)
endif

# The real dependency will be added after all Android.mks are loaded and the install paths
# of the shared libraries are determined.
ifdef LOCAL_INSTALLED_MODULE
ifdef installed_shared_library_module_names
$(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)DEPENDENCIES_ON_SHARED_LIBRARIES += \
    $(my_register_name):$(LOCAL_INSTALLED_MODULE):$(subst $(space),$(comma),$(sort $(installed_shared_library_module_names)))
endif
endif


####################################################
## Import includes
####################################################
import_includes := $(intermediates)/import_includes
import_includes_deps := $(strip \
    $(foreach l, $(installed_shared_library_module_names), \
      $(call intermediates-dir-for,SHARED_LIBRARIES,$(l),$(LOCAL_IS_HOST_MODULE),,$(LOCAL_2ND_ARCH_VAR_PREFIX),$(my_host_cross))/export_includes) \
    $(foreach l, $(my_static_libraries) $(my_whole_static_libraries), \
      $(call intermediates-dir-for,STATIC_LIBRARIES,$(l),$(LOCAL_IS_HOST_MODULE),,$(LOCAL_2ND_ARCH_VAR_PREFIX),$(my_host_cross))/export_includes))
$(import_includes): PRIVATE_IMPORT_EXPORT_INCLUDES := $(import_includes_deps)
$(import_includes) : $(LOCAL_MODULE_MAKEFILE_DEP) $(import_includes_deps)
	@echo Import includes file: $@
	$(hide) mkdir -p $(dir $@) && rm -f $@
ifdef import_includes_deps
	$(hide) for f in $(PRIVATE_IMPORT_EXPORT_INCLUDES); do \
	  cat $$f >> $@; \
	done
else
	$(hide) touch $@
endif

###########################################################
## Common object handling.
###########################################################

# some rules depend on asm_objects being first.  If your code depends on
# being first, it's reasonable to require it to be assembly
normal_objects := \
    $(asm_objects) \
    $(cpp_objects) \
    $(gen_cpp_objects) \
    $(gen_asm_objects) \
    $(c_objects) \
    $(gen_c_objects) \
    $(objc_objects) \
    $(objcpp_objects) \
    $(yacc_objects) \
    $(lex_objects) \
    $(proto_generated_objects) \
    $(addprefix $(TOPDIR)$(LOCAL_PATH)/,$(LOCAL_PREBUILT_OBJ_FILES))

all_objects := $(normal_objects) $(gen_o_objects)

my_c_includes += $(TOPDIR)$(LOCAL_PATH) $(intermediates) $(generated_sources_dir)

ifndef LOCAL_SDK_VERSION
  my_c_includes += $(JNI_H_INCLUDE)
endif

# all_objects includes gen_o_objects which were part of LOCAL_GENERATED_SOURCES;
# use normal_objects here to avoid creating circular dependencies. This assumes
# that custom build rules which generate .o files don't consume other generated
# sources as input (or if they do they take care of that dependency themselves).
$(normal_objects) : | $(my_generated_sources)
ifeq ($(BUILDING_WITH_NINJA),true)
$(all_objects) : $(import_includes)
else
$(all_objects) : | $(import_includes)
endif
ALL_C_CPP_ETC_OBJECTS += $(all_objects)


###########################################################
# Standard library handling.
###########################################################

###########################################################
# The list of libraries that this module will link against are in
# these variables.  Each is a list of bare module names like "libc libm".
#
# LOCAL_SHARED_LIBRARIES
# LOCAL_STATIC_LIBRARIES
# LOCAL_WHOLE_STATIC_LIBRARIES
#
# We need to convert the bare names into the dependencies that
# we'll use for LOCAL_BUILT_MODULE and LOCAL_INSTALLED_MODULE.
# LOCAL_BUILT_MODULE should depend on the BUILT versions of the
# libraries, so that simply building this module doesn't force
# an install of a library.  Similarly, LOCAL_INSTALLED_MODULE
# should depend on the INSTALLED versions of the libraries so
# that they get installed when this module does.
###########################################################
# NOTE:
# WHOLE_STATIC_LIBRARIES are libraries that are pulled into the
# module without leaving anything out, which is useful for turning
# a collection of .a files into a .so file.  Linking against a
# normal STATIC_LIBRARY will only pull in code/symbols that are
# referenced by the module. (see gcc/ld's --whole-archive option)
###########################################################

# Get the list of BUILT libraries, which are under
# various intermediates directories.
so_suffix := $($(my_prefix)SHLIB_SUFFIX)
a_suffix := $($(my_prefix)STATIC_LIB_SUFFIX)

ifdef LOCAL_SDK_VERSION
built_shared_libraries := \
    $(addprefix $($(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)OUT_INTERMEDIATE_LIBRARIES)/, \
      $(addsuffix $(so_suffix), \
        $(my_shared_libraries)))
built_shared_library_tocs := $(addsuffix .toc, $(built_shared_libraries))

# Add the NDK libraries to the built module dependency
my_system_shared_libraries_fullpath := \
    $(my_ndk_stl_shared_lib_fullpath) \
    $(addprefix $(my_ndk_sysroot_lib)/, \
        $(addsuffix $(so_suffix), $(my_system_shared_libraries)))

built_shared_libraries += $(my_system_shared_libraries_fullpath)
else
built_shared_libraries := \
    $(addprefix $($(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)OUT_INTERMEDIATE_LIBRARIES)/, \
      $(addsuffix $(so_suffix), \
        $(installed_shared_library_module_names)))
built_shared_library_tocs := $(addsuffix .toc, $(built_shared_libraries))
my_system_shared_libraries_fullpath :=
endif

built_static_libraries := \
    $(foreach lib,$(my_static_libraries), \
      $(call intermediates-dir-for, \
        STATIC_LIBRARIES,$(lib),$(LOCAL_IS_HOST_MODULE),,$(LOCAL_2ND_ARCH_VAR_PREFIX),$(my_host_cross))/$(lib)$(a_suffix))

ifdef LOCAL_SDK_VERSION
built_static_libraries += $(my_ndk_stl_static_lib)
endif

built_whole_libraries := \
    $(foreach lib,$(my_whole_static_libraries), \
      $(call intermediates-dir-for, \
        STATIC_LIBRARIES,$(lib),$(LOCAL_IS_HOST_MODULE),,$(LOCAL_2ND_ARCH_VAR_PREFIX),$(my_host_cross))/$(lib)$(a_suffix))

# We don't care about installed static libraries, since the
# libraries have already been linked into the module at that point.
# We do, however, care about the NOTICE files for any static
# libraries that we use. (see notice_files.mk)

installed_static_library_notice_file_targets := \
    $(foreach lib,$(my_static_libraries) $(my_whole_static_libraries), \
      NOTICE-$(if $(LOCAL_IS_HOST_MODULE),HOST,TARGET)-STATIC_LIBRARIES-$(lib))

# Default is -fno-rtti.
ifeq ($(strip $(LOCAL_RTTI_FLAG)),)
LOCAL_RTTI_FLAG := -fno-rtti
endif

###########################################################
# Rule-specific variable definitions
###########################################################

ifeq ($(my_clang),true)
my_cflags += $(LOCAL_CLANG_CFLAGS)
my_conlyflags += $(LOCAL_CLANG_CONLYFLAGS)
my_cppflags += $(LOCAL_CLANG_CPPFLAGS)
my_cflags_no_override += $(GLOBAL_CLANG_CFLAGS_NO_OVERRIDE)
my_cppflags_no_override += $(GLOBAL_CLANG_CPPFLAGS_NO_OVERRIDE)
my_asflags += $(LOCAL_CLANG_ASFLAGS)
my_ldflags += $(LOCAL_CLANG_LDFLAGS)
my_cflags += $(LOCAL_CLANG_CFLAGS_$($(my_prefix)$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH)) $(LOCAL_CLANG_CFLAGS_$(my_32_64_bit_suffix))
my_conlyflags += $(LOCAL_CLANG_CONLYFLAGS_$($(my_prefix)$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH)) $(LOCAL_CLANG_CONLYFLAGS_$(my_32_64_bit_suffix))
my_cppflags += $(LOCAL_CLANG_CPPFLAGS_$($(my_prefix)$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH)) $(LOCAL_CLANG_CPPFLAGS_$(my_32_64_bit_suffix))
my_ldflags += $(LOCAL_CLANG_LDFLAGS_$($(my_prefix)$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH)) $(LOCAL_CLANG_LDFLAGS_$(my_32_64_bit_suffix))
my_asflags += $(LOCAL_CLANG_ASFLAGS_$($(my_prefix)$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH)) $(LOCAL_CLANG_ASFLAGS_$(my_32_64_bit_suffix))
my_cflags := $(call $(LOCAL_2ND_ARCH_VAR_PREFIX)convert-to-$(my_host)clang-flags,$(my_cflags))
my_cppflags := $(call $(LOCAL_2ND_ARCH_VAR_PREFIX)convert-to-$(my_host)clang-flags,$(my_cppflags))
my_asflags := $(call $(LOCAL_2ND_ARCH_VAR_PREFIX)convert-to-$(my_host)clang-flags,$(my_asflags))
my_ldflags := $(call $(LOCAL_2ND_ARCH_VAR_PREFIX)convert-to-$(my_host)clang-flags,$(my_ldflags))
endif

ifeq ($(my_fdo_build), true)
  my_cflags := $(patsubst -Os,-O2,$(my_cflags))
  fdo_incompatible_flags := -fno-early-inlining -finline-limit=%
  my_cflags := $(filter-out $(fdo_incompatible_flags),$(my_cflags))
endif

# No one should ever use this flag. On GCC it's mere presence will disable all
# warnings, even those that are specified after it (contrary to typical warning
# flag behavior). This circumvents CFLAGS_NO_OVERRIDE from forcibly enabling the
# warnings that are *always* bugs.
my_illegal_flags := -w
my_cflags := $(filter-out $(my_illegal_flags),$(my_cflags))
my_cppflags := $(filter-out $(my_illegal_flags),$(my_cppflags))
my_conlyflags := $(filter-out $(my_illegal_flags),$(my_conlyflags))

$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_YACCFLAGS := $(LOCAL_YACCFLAGS)
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_ASFLAGS := $(my_asflags)
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_CONLYFLAGS := $(my_conlyflags)
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_CFLAGS := $(my_cflags)
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_CPPFLAGS := $(my_cppflags)
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_CFLAGS_NO_OVERRIDE := $(my_cflags_no_override)
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_CPPFLAGS_NO_OVERRIDE := $(my_cppflags_no_override)
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_RTTI_FLAG := $(LOCAL_RTTI_FLAG)
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_DEBUG_CFLAGS := $(debug_cflags)
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_C_INCLUDES := $(my_c_includes)
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_IMPORT_INCLUDES := $(import_includes)
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_LDFLAGS := $(my_ldflags)
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_LDLIBS := $(my_ldlibs)

# this is really the way to get the files onto the command line instead
# of using $^, because then LOCAL_ADDITIONAL_DEPENDENCIES doesn't work
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_ALL_SHARED_LIBRARIES := $(built_shared_libraries)
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_ALL_STATIC_LIBRARIES := $(built_static_libraries)
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_ALL_WHOLE_STATIC_LIBRARIES := $(built_whole_libraries)
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_ALL_OBJECTS := $(all_objects)

###########################################################
# Define library dependencies.
###########################################################
# all_libraries is used for the dependencies on LOCAL_BUILT_MODULE.
all_libraries := \
    $(built_shared_library_tocs) \
    $(my_system_shared_libraries_fullpath) \
    $(built_static_libraries) \
    $(built_whole_libraries)

# Also depend on the notice files for any static libraries that
# are linked into this module.  This will force them to be installed
# when this module is.
$(LOCAL_INSTALLED_MODULE): | $(installed_static_library_notice_file_targets)

###########################################################
# Export includes
###########################################################
export_includes := $(intermediates)/export_includes
$(export_includes): PRIVATE_EXPORT_C_INCLUDE_DIRS := $(my_export_c_include_dirs)
# Make sure .pb.h are already generated before any dependent source files get compiled.
# Similarly, the generated DBus headers need to exist before we export their location.
# People are not going to consume the aidl generated cpp file, but the cpp file is
# generated after the headers, so this is a convenient way to ensure the headers exist.
$(export_includes) : $(LOCAL_MODULE_MAKEFILE_DEP) $(proto_generated_headers) $(dbus_generated_headers) $(aidl_gen_cpp)
	@echo Export includes file: $< -- $@
	$(hide) mkdir -p $(dir $@) && rm -f $@.tmp
ifdef my_export_c_include_dirs
	$(hide) for d in $(PRIVATE_EXPORT_C_INCLUDE_DIRS); do \
	        echo "-I $$d" >> $@.tmp; \
	        done
else
	$(hide) touch $@.tmp
endif
ifeq ($(BUILDING_WITH_NINJA),true)
	$(hide) if cmp -s $@.tmp $@ ; then \
	  rm $@.tmp ; \
	else \
	  mv $@.tmp $@ ; \
	fi
else
	mv $@.tmp $@ ;
endif

# Kati adds restat=1 to ninja. GNU make does nothing for this.
.KATI_RESTAT: $(export_includes)

# Make sure export_includes gets generated when you are running mm/mmm
$(LOCAL_BUILT_MODULE) : | $(export_includes)