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

######################################
## Sanity check for LOCAL_NDK_VERSION
######################################
my_ndk_version_root :=
ifdef LOCAL_NDK_VERSION
  ifdef LOCAL_IS_HOST_MODULE
    $(error $(LOCAL_PATH): LOCAL_NDK_VERSION can not be used in host module)
  endif
  ifneq ($(filter-out SHARED_LIBRARIES STATIC_LIBRARIES,$(LOCAL_MODULE_CLASS)),)
    $(error $(LOCAL_PATH): LOCAL_NDK_VERSION can only be used to build target shared/static libraries, \
          while your module is of class $(LOCAL_MODULE_CLASS))
  endif
  ifeq ($(filter $(LOCAL_NDK_VERSION),$(TARGET_AVAILABLE_NDK_VERSIONS)),)
    $(error $(LOCAL_PATH): Invalid LOCAL_NDK_VERSION '$(LOCAL_NDK_VERSION)' \
           Choices are $(TARGET_AVAILABLE_NDK_VERSIONS))
  endif
  ifndef LOCAL_SDK_VERSION
    $(error $(LOCAL_PATH): LOCAL_NDK_VERSION must be defined with LOCAL_SDK_VERSION)
  endif
  my_ndk_source_root := $(HISTORICAL_NDK_VERSIONS_ROOT)/android-ndk-r$(LOCAL_NDK_VERSION)/sources
  my_ndk_version_root := $(HISTORICAL_NDK_VERSIONS_ROOT)/android-ndk-r$(LOCAL_NDK_VERSION)/platforms/android-$(LOCAL_SDK_VERSION)/arch-$(TARGET_ARCH)
  ifeq ($(wildcard $(my_ndk_version_root)),)
    $(error $(LOCAL_PATH): ndk version root does not exist: $(my_ndk_version_root))
  endif

  # 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 :=
  ifeq (,$(LOCAL_NDK_STL_VARIANT))
    LOCAL_NDK_STL_VARIANT := system
  endif
  ifneq (1,$(words $(filter system stlport_static stlport_shared gnustl_static, $(LOCAL_NDK_STL_VARIANT))))
    $(error $(LOCAL_PATH): Unkown LOCAL_NDK_STL_VARIANT $(LOCAL_NDK_STL_VARIANT))
  endif
  ifeq (system,$(LOCAL_NDK_STL_VARIANT))
    my_ndk_stl_include_path := $(my_ndk_source_root)/cxx-stl/system/include
    # for "system" variant, the shared library exists in the system library and -lstdc++ is added by default.
  else # LOCAL_NDK_STL_VARIANT is not system
  ifneq (,$(filter stlport_%, $(LOCAL_NDK_STL_VARIANT)))
    my_ndk_stl_include_path := $(my_ndk_source_root)/cxx-stl/stlport/stlport
    ifeq (stlport_static,$(LOCAL_NDK_STL_VARIANT))
      my_ndk_stl_static_lib := $(my_ndk_source_root)/cxx-stl/stlport/libs/$(TARGET_CPU_ABI)/libstlport_static.a
    else
      my_ndk_stl_shared_lib_fullpath := $(my_ndk_source_root)/cxx-stl/stlport/libs/$(TARGET_CPU_ABI)/libstlport_shared.so
      my_ndk_stl_shared_lib := -lstlport_shared
    endif
  else
    # LOCAL_NDK_STL_VARIANT is gnustl_static
    my_ndk_stl_include_path := $(my_ndk_source_root)/cxx-stl/gnu-libstdc++/libs/$(TARGET_CPU_ABI)/include \
                               $(my_ndk_source_root)/cxx-stl/gnu-libstdc++/include
    my_ndk_stl_static_lib := $(my_ndk_source_root)/cxx-stl/gnu-libstdc++/libs/$(TARGET_CPU_ABI)/libstdc++.a
  endif
  endif
endif

##################################################
# 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 ($(LOCAL_SYSTEM_SHARED_LIBRARIES),none)
      LOCAL_SYSTEM_SHARED_LIBRARIES :=
  endif
else
  ifeq ($(LOCAL_SYSTEM_SHARED_LIBRARIES),none)
      LOCAL_SYSTEM_SHARED_LIBRARIES := $(TARGET_DEFAULT_SYSTEM_SHARED_LIBRARIES)
  endif
endif

# Logging used to be part of libcutils (target) and libutils (sim);
# hack modules that use those other libs to also include liblog.
# All of this complexity is to make sure that liblog only appears
# once, and appears just before libcutils or libutils on the link
# line.
# TODO: remove this hack and change all modules to use liblog
# when necessary.
define insert-liblog
  $(if $(filter liblog,$(1)),$(1), \
    $(if $(filter libcutils,$(1)), \
      $(patsubst libcutils,liblog libcutils,$(1)) \
     , \
      $(patsubst libutils,liblog libutils,$(1)) \
     ) \
   )
endef
ifneq (,$(filter libcutils libutils,$(LOCAL_SHARED_LIBRARIES)))
  LOCAL_SHARED_LIBRARIES := $(call insert-liblog,$(LOCAL_SHARED_LIBRARIES))
endif
ifneq (,$(filter libcutils libutils,$(LOCAL_STATIC_LIBRARIES)))
  LOCAL_STATIC_LIBRARIES := $(call insert-liblog,$(LOCAL_STATIC_LIBRARIES))
endif
ifneq (,$(filter libcutils libutils,$(LOCAL_WHOLE_STATIC_LIBRARIES)))
  LOCAL_WHOLE_STATIC_LIBRARIES := $(call insert-liblog,$(LOCAL_WHOLE_STATIC_LIBRARIES))
endif

ifdef LOCAL_NDK_VERSION
  # Get the list of INSTALLED libraries as module names.
  # We can not compute the full path of the LOCAL_SHARED_LIBRARIES for
  # they may cusomize their install path with LOCAL_MODULE_PATH
  installed_shared_library_module_names := \
      $(LOCAL_SHARED_LIBRARIES)
else
  installed_shared_library_module_names := \
      $(LOCAL_SYSTEM_SHARED_LIBRARIES) $(LOCAL_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.
LOCAL_REQUIRED_MODULES += $(installed_shared_library_module_names)

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

ifeq ($(strip $(LOCAL_ADDRESS_SANITIZER)),true)
  LOCAL_CLANG := true
  LOCAL_CFLAGS += $(ADDRESS_SANITIZER_CONFIG_EXTRA_CFLAGS)
  LOCAL_LDFLAGS += $(ADDRESS_SANITIZER_CONFIG_EXTRA_LDFLAGS)
  LOCAL_SHARED_LIBRARIES += $(ADDRESS_SANITIZER_CONFIG_EXTRA_SHARED_LIBRARIES)
  LOCAL_STATIC_LIBRARIES += $(ADDRESS_SANITIZER_CONFIG_EXTRA_STATIC_LIBRARIES)
endif

# Add in libcompiler-rt for all regular device builds
ifeq (,$(LOCAL_NDK_VERSION)$(LOCAL_IS_HOST_MODULE)$(BUILD_TINY_ANDROID))
  LOCAL_STATIC_LIBRARIES += $(COMPILER_RT_CONFIG_EXTRA_STATIC_LIBRARIES)
endif

my_compiler_dependencies :=
ifeq ($(strip $(LOCAL_CLANG)),true)
  LOCAL_CFLAGS += $(CLANG_CONFIG_EXTRA_CFLAGS)
  LOCAL_ASFLAGS += $(CLANG_CONFIG_EXTRA_ASFLAGS)
  LOCAL_LDFLAGS += $(CLANG_CONFIG_EXTRA_LDFLAGS)
  my_compiler_dependencies := $(CLANG) $(CLANG_CXX)
endif

####################################################
## Add FDO flags if FDO is turned on and supported
####################################################
ifeq ($(strip $(LOCAL_NO_FDO_SUPPORT)),)
  LOCAL_CFLAGS += $(TARGET_FDO_CFLAGS)
  LOCAL_CPPFLAGS += $(TARGET_FDO_CFLAGS)
  LOCAL_LDFLAGS += $(TARGET_FDO_CFLAGS)
endif

####################################################
## Add profiling flags if aprof is turned on
####################################################
ifeq ($(strip $(LOCAL_ENABLE_APROF)),true)
  # -ffunction-sections and -fomit-frame-pointer are conflict with -pg
  LOCAL_CFLAGS += -fno-omit-frame-pointer -fno-function-sections -pg
  LOCAL_CPPFLAGS += -fno-omit-frame-pointer -fno-function-sections -pg
endif

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

###########################################################
## Define PRIVATE_ variables from global vars
###########################################################
ifeq ($(strip $(LOCAL_CLANG)),true)
my_target_global_cflags := $(TARGET_GLOBAL_CLANG_FLAGS)
else
my_target_global_cflags := $(TARGET_GLOBAL_CFLAGS)
endif

ifdef LOCAL_NDK_VERSION
my_target_project_includes :=
my_target_c_includes := $(my_ndk_stl_include_path) $(my_ndk_version_root)/usr/include
# TODO: more reliable way to remove platform stuff.
my_target_global_cflags := $(filter-out -include -I system/%, $(my_target_global_cflags))
my_target_global_cppflags := $(filter-out -include -I system/%, $(TARGET_GLOBAL_CPPFLAGS))
else
my_target_project_includes := $(TARGET_PROJECT_INCLUDES)
my_target_c_includes := $(TARGET_C_INCLUDES)
my_target_global_cflags := $(my_target_global_cflags)
my_target_global_cppflags := $(TARGET_GLOBAL_CPPFLAGS)
ifeq ($(strip $(LOCAL_CLANG)),true)
  my_target_c_includes += $(CLANG_CONFIG_EXTRA_TARGET_C_INCLUDES)
endif
endif
$(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_CPPFLAGS := $(my_target_global_cppflags)

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

ifeq ($(strip $(LOCAL_CC)),)
  ifeq ($(strip $(LOCAL_CLANG)),true)
    LOCAL_CC := $(CLANG)
  else
    LOCAL_CC := $($(my_prefix)CC)
  endif
endif
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_CC := $(LOCAL_CC)

ifeq ($(strip $(LOCAL_CXX)),)
  ifeq ($(strip $(LOCAL_CLANG)),true)
    LOCAL_CXX := $(CLANG_CXX)
  else
    LOCAL_CXX := $($(my_prefix)CXX)
  endif
endif
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_CXX := $(LOCAL_CXX)

# 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 $(LOCAL_NO_DEFAULT_COMPILER_FLAGS)),)
ifeq ($(strip $(LOCAL_ALLOW_UNDEFINED_SYMBOLS)),)
  LOCAL_LDFLAGS := $(LOCAL_LDFLAGS) $($(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 $(LOCAL_ARM_MODE))
ifeq ($(TARGET_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).
ifeq ($(strip $(LOCAL_CLANG)),true)
arm_objects_cflags := $($(my_prefix)$(arm_objects_mode)_CLANG_CFLAGS)
normal_objects_cflags := $($(my_prefix)$(normal_objects_mode)_CLANG_CFLAGS)
else
arm_objects_cflags := $($(my_prefix)$(arm_objects_mode)_CFLAGS)
normal_objects_cflags := $($(my_prefix)$(normal_objects_mode)_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

###########################################################
## Stuff source generated from one-off tools
###########################################################
$(LOCAL_GENERATED_SOURCES): PRIVATE_MODULE := $(LOCAL_MODULE)

ALL_GENERATED_SOURCES += $(LOCAL_GENERATED_SOURCES)


###########################################################
## Compile the .proto files to .cc and then to .o
###########################################################
proto_sources := $(filter %.proto,$(LOCAL_SRC_FILES))
proto_generated_objects :=
proto_generated_headers :=
ifneq ($(proto_sources),)
proto_sources_fullpath := $(addprefix $(LOCAL_PATH)/, $(proto_sources))
proto_generated_cc_sources_dir := $(intermediates)/proto
proto_generated_cc_sources := $(addprefix $(proto_generated_cc_sources_dir)/, \
    $(patsubst %.proto,%.pb.cc,$(proto_sources_fullpath)))
proto_generated_objects := $(patsubst %.cc,%.o, $(proto_generated_cc_sources))

$(proto_generated_cc_sources): PRIVATE_PROTO_INCLUDES := $(TOP)
$(proto_generated_cc_sources): PRIVATE_PROTO_CC_OUTPUT_DIR := $(proto_generated_cc_sources_dir)
$(proto_generated_cc_sources): PRIVATE_PROTOC_FLAGS := $(LOCAL_PROTOC_FLAGS)
$(proto_generated_cc_sources): $(proto_generated_cc_sources_dir)/%.pb.cc: %.proto $(PROTOC)
	$(transform-proto-to-cc)

proto_generated_headers := $(patsubst %.pb.cc,%.pb.h, $(proto_generated_cc_sources))
$(proto_generated_headers): $(proto_generated_cc_sources_dir)/%.pb.h: $(proto_generated_cc_sources_dir)/%.pb.cc

$(proto_generated_objects): PRIVATE_ARM_MODE := $(normal_objects_mode)
$(proto_generated_objects): PRIVATE_ARM_CFLAGS := $(normal_objects_cflags)
$(proto_generated_objects): $(proto_generated_cc_sources_dir)/%.o: $(proto_generated_cc_sources_dir)/%.cc $(proto_generated_headers)
	$(transform-$(PRIVATE_HOST)cpp-to-o)
-include $(proto_generated_objects:%.o=%.P)

LOCAL_C_INCLUDES += external/protobuf/src $(proto_generated_cc_sources_dir)
LOCAL_CFLAGS += -DGOOGLE_PROTOBUF_NO_RTTI
ifeq ($(LOCAL_PROTOC_OPTIMIZE_TYPE),full)
LOCAL_STATIC_LIBRARIES += libprotobuf-cpp-2.3.0-full
else
LOCAL_STATIC_LIBRARIES += libprotobuf-cpp-2.3.0-lite
endif
endif


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

yacc_sources := $(filter %.y,$(LOCAL_SRC_FILES))
yacc_cpps := $(addprefix \
    $(intermediates)/,$(yacc_sources:.y=$(LOCAL_CPP_EXTENSION)))
yacc_headers := $(yacc_cpps:$(LOCAL_CPP_EXTENSION)=.h)
yacc_objects := $(yacc_cpps:$(LOCAL_CPP_EXTENSION)=.o)

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

$(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 files to .cpp and then to .o.
###########################################################

lex_sources := $(filter %.l,$(LOCAL_SRC_FILES))
lex_cpps := $(addprefix \
    $(intermediates)/,$(lex_sources:.l=$(LOCAL_CPP_EXTENSION)))
lex_objects := $(lex_cpps:$(LOCAL_CPP_EXTENSION)=.o)

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

$(lex_objects): PRIVATE_ARM_MODE := $(normal_objects_mode)
$(lex_objects): PRIVATE_ARM_CFLAGS := $(normal_objects_cflags)
$(lex_objects): $(intermediates)/%.o: \
    $(intermediates)/%$(LOCAL_CPP_EXTENSION) \
    $(LOCAL_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 %$(LOCAL_CPP_EXTENSION).arm,$(LOCAL_SRC_FILES)))
cpp_arm_objects    := $(addprefix $(intermediates)/,$(cpp_arm_sources:$(LOCAL_CPP_EXTENSION)=.o))

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

$(cpp_arm_objects):    PRIVATE_ARM_MODE := $(arm_objects_mode)
$(cpp_arm_objects):    PRIVATE_ARM_CFLAGS := $(arm_objects_cflags)
$(cpp_normal_objects): PRIVATE_ARM_MODE := $(normal_objects_mode)
$(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_compiler_dependencies) \
    $(LOCAL_ADDITIONAL_DEPENDENCIES)
	$(transform-$(PRIVATE_HOST)cpp-to-o)
-include $(cpp_objects:%.o=%.P)
endif

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

gen_cpp_sources := $(filter %$(LOCAL_CPP_EXTENSION),$(LOCAL_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_compiler_dependencies) \
    $(LOCAL_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 := $(filter %.S,$(LOCAL_GENERATED_SOURCES))
gen_S_objects := $(gen_S_sources:%.S=%.o)

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

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

ifneq ($(strip $(gen_s_objects)),)
$(gen_s_objects): $(intermediates)/%.o: $(intermediates)/%.s \
    $(my_compiler_dependencies) $(LOCAL_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)

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

c_arm_sources    := $(patsubst %.c.arm,%.c,$(filter %.c.arm,$(LOCAL_SRC_FILES)))
c_arm_objects    := $(addprefix $(intermediates)/,$(c_arm_sources:.c=.o))

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

$(c_arm_objects):    PRIVATE_ARM_MODE := $(arm_objects_mode)
$(c_arm_objects):    PRIVATE_ARM_CFLAGS := $(arm_objects_cflags)
$(c_normal_objects): PRIVATE_ARM_MODE := $(normal_objects_mode)
$(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_compiler_dependencies) $(LOCAL_ADDITIONAL_DEPENDENCIES)
	$(transform-$(PRIVATE_HOST)c-to-o)
-include $(c_objects:%.o=%.P)
endif

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

gen_c_sources := $(filter %.c,$(LOCAL_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_compiler_dependencies) $(LOCAL_ADDITIONAL_DEPENDENCIES)
	$(transform-$(PRIVATE_HOST)c-to-o)
-include $(gen_c_objects:%.o=%.P)
endif

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

objc_sources := $(filter %.m,$(LOCAL_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_compiler_dependencies) $(LOCAL_ADDITIONAL_DEPENDENCIES)
	$(transform-$(PRIVATE_HOST)m-to-o)
-include $(objc_objects:%.o=%.P)
endif

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

asm_sources_S := $(filter %.S,$(LOCAL_SRC_FILES))
asm_objects_S := $(addprefix $(intermediates)/,$(asm_sources_S:.S=.o))

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

asm_sources_s := $(filter %.s,$(LOCAL_SRC_FILES))
asm_objects_s := $(addprefix $(intermediates)/,$(asm_sources_s:.s=.o))

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

asm_objects := $(asm_objects_S) $(asm_objects_s)


####################################################
## 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))/export_includes) \
    $(foreach l, $(LOCAL_STATIC_LIBRARIES) $(LOCAL_WHOLE_STATIC_LIBRARIES), \
      $(call intermediates-dir-for,STATIC_LIBRARIES,$(l),$(LOCAL_IS_HOST_MODULE))/export_includes))
$(import_includes) : $(import_includes_deps)
	@echo Import includes file: $@
	$(hide) mkdir -p $(dir $@) && rm -f $@
ifdef import_includes_deps
	$(hide) for f in $^; 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
all_objects := \
    $(asm_objects) \
    $(cpp_objects) \
    $(gen_cpp_objects) \
    $(gen_asm_objects) \
    $(c_objects) \
    $(gen_c_objects) \
    $(objc_objects) \
    $(yacc_objects) \
    $(lex_objects) \
    $(proto_generated_objects) \
    $(addprefix $(TOPDIR)$(LOCAL_PATH)/,$(LOCAL_PREBUILT_OBJ_FILES))

LOCAL_C_INCLUDES += $(TOPDIR)$(LOCAL_PATH) $(intermediates)

ifndef LOCAL_NDK_VERSION
  LOCAL_C_INCLUDES += $(JNI_H_INCLUDE)
endif

$(all_objects) : | $(LOCAL_GENERATED_SOURCES) $(import_includes)
ALL_C_CPP_ETC_OBJECTS += $(all_objects)

###########################################################
## Copy headers to the install tree
###########################################################
include $(BUILD_COPY_HEADERS)

###########################################################
# 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_NDK_VERSION
built_shared_libraries := \
    $(addprefix $($(my_prefix)OUT_INTERMEDIATE_LIBRARIES)/, \
      $(addsuffix $(so_suffix), \
        $(LOCAL_SHARED_LIBRARIES)))

my_system_shared_libraries_fullpath := \
    $(my_ndk_stl_shared_lib_fullpath) \
    $(addprefix $(my_ndk_version_root)/usr/lib/, \
        $(addsuffix $(so_suffix), $(LOCAL_SYSTEM_SHARED_LIBRARIES)))

built_shared_libraries += $(my_system_shared_libraries_fullpath)
LOCAL_SHARED_LIBRARIES += $(LOCAL_SYSTEM_SHARED_LIBRARIES)
else
LOCAL_SHARED_LIBRARIES += $(LOCAL_SYSTEM_SHARED_LIBRARIES)
built_shared_libraries := \
    $(addprefix $($(my_prefix)OUT_INTERMEDIATE_LIBRARIES)/, \
      $(addsuffix $(so_suffix), \
        $(LOCAL_SHARED_LIBRARIES)))
endif

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

ifdef LOCAL_NDK_VERSION
built_static_libraries += $(my_ndk_stl_static_lib)
endif

built_whole_libraries := \
    $(foreach lib,$(LOCAL_WHOLE_STATIC_LIBRARIES), \
      $(call intermediates-dir-for, \
        STATIC_LIBRARIES,$(lib),$(LOCAL_IS_HOST_MODULE))/$(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 := \
    $(foreach lib,$(LOCAL_STATIC_LIBRARIES) $(LOCAL_WHOLE_STATIC_LIBRARIES), \
      NOTICE-$(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
###########################################################
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_YACCFLAGS := $(LOCAL_YACCFLAGS)
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_ASFLAGS := $(LOCAL_ASFLAGS)
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_CFLAGS := $(LOCAL_CFLAGS)
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_CPPFLAGS := $(LOCAL_CPPFLAGS)
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_RTTI_FLAG := $(LOCAL_RTTI_FLAG)
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_DEBUG_CFLAGS := $(debug_cflags)
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_C_INCLUDES := $(LOCAL_C_INCLUDES)
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_IMPORT_INCLUDES := $(import_includes)
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_LDFLAGS := $(LOCAL_LDFLAGS)
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_LDLIBS := $(LOCAL_LDLIBS)
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_NO_CRT := $(LOCAL_NO_CRT)

# 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_libraries) \
    $(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 := $(LOCAL_EXPORT_C_INCLUDE_DIRS)
$(export_includes) : $(LOCAL_MODULE_MAKEFILE)
	@echo Export includes file: $< -- $@
	$(hide) mkdir -p $(dir $@) && rm -f $@
ifdef LOCAL_EXPORT_C_INCLUDE_DIRS
	$(hide) for d in $(PRIVATE_EXPORT_C_INCLUDE_DIRS); do \
	        echo "-I $$d" >> $@; \
	        done
else
	$(hide) touch $@
endif

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