简化构建多个可执行文件的Android.mk文件

Question

我正在为Android构建一些硬件测试.我有一个Android.mk文件,它逐个构建这些可执行文件,每个文件使用一块makefile代码,如下所示:

##### shared #####
LOCAL_PATH := $(my-dir)

##### test_number_one #####
test_name := test_number_one
include $(CLEAR_VARS)
LOCAL_CFLAGS := $(commonCflags)
LOCAL_C_INCLUDES := $(LOCAL_PATH)/../
LOCAL_MODULE_TAGS := optional eng
LOCAL_SHARED_LIBRARIES := some_library some_other_library
LOCAL_MODULE := $(test_name)
LOCAL_SRC_FILES := tests/$(test_name)/$(test_name).c
include $(BUILD_EXECUTABLE)


##### test_number_two #####
test_name := test_number_two
include $(CLEAR_VARS)
LOCAL_CFLAGS := $(commonCflags)
LOCAL_C_INCLUDES := $(LOCAL_PATH)/../
LOCAL_MODULE_TAGS := optional eng
LOCAL_SHARED_LIBRARIES := some_library some_other_library
LOCAL_MODULE := $(test_name)
LOCAL_SRC_FILES := tests/$(test_name)/$(test_name).c
include $(BUILD_EXECUTABLE)

如您所见,每个测试(在include $(CLEAR_VARS)和之间include $(CLEAR_VARS))都会重复大部分代码.我想简化这一点,以便我有一个测试名称列表和一段makefile代码,每个代码都被"调用".我不在乎该代码是否必须拆分成另一个文件.这里有一些python-esque伪代码来演示我的目标:

##### shared #####
LOCAL_PATH := $(my-dir)

##### test_number_one #####
test_names := test_number_one test_numer_two

for each item in test_names:
    include $(CLEAR_VARS)
    LOCAL_CFLAGS := $(commonCflags)
    LOCAL_C_INCLUDES := $(LOCAL_PATH)/../
    LOCAL_MODULE_TAGS := optional eng
    LOCAL_SHARED_LIBRARIES := some_library some_other_library
    LOCAL_MODULE := $(item)
    LOCAL_SRC_FILES := tests/$(item)/$(item).c
    include $(BUILD_EXECUTABLE)

这在Android.mk文件中是否可行？怎么做到呢？

Answer 1

你应该能够做类似的事情

define my_add_executable
    include $(CLEAR_VARS)
    LOCAL_CFLAGS := $(commonCflags)
    LOCAL_C_INCLUDES := $(LOCAL_PATH)/../
    LOCAL_MODULE_TAGS := optional eng
    LOCAL_SHARED_LIBRARIES := some_library some_other_library
    LOCAL_MODULE := $1
    LOCAL_SRC_FILES := tests/$1/$1.c
    include $(BUILD_EXECUTABLE)
endef

test_names := test_number_one test_numer_two
$(foreach item,$(test_names),$(eval $(call my_add_executable,$(item))))

我们的项目中有类似的构造,包括多个预建库.