为什么加载静态库时我的二进制文件不大

Question

Here is my Android.mk:

include $(CLEAR_VARS)

LOCAL_CPPFLAGS := -std=c++11 -Wall -Werror

LOCAL_STATIC_LIBRARIES := libdict

LOCAL_MODULE := test_demo

LOCAL_SRC_FILES := test.cpp

include $(BUILD_EXECUTABLE)

I change LOCAL_STATIC_LIBRARIES to LOCAL_SHARED_LIBRARIES , test_demo is the same size.

Answer 1

C++ linker will trim the unused functions of library. So if you don't use the function of libdict or only use some very simple functions, the size of your binary file will not increase significantly.