的Android NDK，两个静态库和链接 [英] Android NDK, two Static Libraries and Linking
问题描述
我开始了创建共享库的库，但我认为这将是更有效地创建一个共享库，其余不变。当它所有的共享，它编译和链接的罚款，但动静态，我得到的链接未定义的参考。
I started off creating libraries as shared libraries, but I considered it would be more efficient to create one shared libraries and the rest static. When it was all shared, it compiled and linked fine, but moving to static, I get on linking "undefined reference".
编辑：我构建的所有库一个 Android.mk
I build all the libraries in one Android.mk
Android.mk：
Android.mk:
MY_LOCAL_PATH := $(call my-dir)
MY_LOCAL_CFLAGS := -DDEBUG
TARGET_PLATFORM := 'android-4'
LOCAL_PATH := $(MY_LOCAL_PATH)/../../Base
include $(CLEAR_VARS)
LOCAL_MODULE := Base
LOCAL_SRC_FILES := <Base src files>
include $(BUILD_STATIC_LIBRARY)
MY_LOCAL_STATIC_LIBRARIES := Base
MY_LOCAL_C_INCLUDES := $(MY_LOCAL_PATH)/../../Base
LOCAL_PATH := $(MY_LOCAL_PATH)/../../Framework
include $(CLEAR_VARS)
LOCAL_MODULE := Framework
LOCAL_C_INCLUDES := $(MY_LOCAL_C_INCLUDES)
LOCAL_SRC_FILES := <Framework src files>
LOCAL_CFLAGS := $(MY_LOCAL_CFLAGS)
include $(BUILD_STATIC_LIBRARY)
MY_LOCAL_STATIC_LIBRARIES += Framework
MY_LOCAL_C_INCLUDES += $(MY_LOCAL_PATH)/../../Framework
LOCAL_PATH := $(MY_LOCAL_PATH)/Graphics
include $(CLEAR_VARS)
LOCAL_MODULE := Graphics
LOCAL_SRC_FILES := <Graphics src files>
LOCAL_EXPORT_LDLIBS := -lGLESv1_CM
LOCAL_CFLAGS := $(MY_LOCAL_CFLAGS)
LOCAL_C_INCLUDES := $(MY_LOCAL_C_INCLUDES)
include $(BUILD_STATIC_LIBRARY)
MY_LOCAL_STATIC_LIBRARIES += Graphics
MY_LOCAL_C_INCLUDES += $(MY_LOCAL_PATH)/Graphics
LOCAL_PATH := $(MY_LOCAL_PATH)/Platform
include $(CLEAR_VARS)
LOCAL_MODULE := Platform
LOCAL_SRC_FILES := <Platform src files>
LOCAL_CFLAGS := $(MY_LOCAL_CFLAGS)
LOCAL_C_INCLUDES := $(MY_LOCAL_C_INCLUDES)
include $(BUILD_STATIC_LIBRARY)
MY_LOCAL_STATIC_LIBRARIES += Platform
MY_LOCAL_C_INCLUDES += $(MY_LOCAL_PATH)/Platform
LOCAL_PATH := $(MY_LOCAL_PATH)
include $(CLEAR_VARS)
LOCAL_MODULE := Final
LOCAL_SRC_FILES := <Final src files>
LOCAL_STATIC_LIBRARIES := $(MY_LOCAL_STATIC_LIBRARIES)
LOCAL_LDLIBS := -llog
LOCAL_CFLAGS := $(MY_LOCAL_CFLAGS)
LOCAL_C_INCLUDES := $(MY_LOCAL_C_INCLUDES)
include $(BUILD_SHARED_LIBRARY)
最后一行 NDK建造V = 1-B ：
SharedLibrary : libFinal.so
/Users/robbie/Library/Frameworks/Android-NDK/toolchains/arm-linux-androideabi-4.4.3/prebuilt/darwin-x86/bin/arm-linux-androideabi-g++ -Wl,-soname,libFinal.so -shared --sysroot=/Users/robbie/Library/Frameworks/Android-NDK/platforms/android-4/arch-arm <object files> /Users/robbie/Documents/Apps/Revolution/Android/obj/local/armeabi/libBase.a /Users/robbie/Documents/Apps/Revolution/Android/obj/local/armeabi/libFramework.a /Users/robbie/Documents/Apps/Revolution/Android/obj/local/armeabi/libGraphics.a /Users/robbie/Documents/Apps/Revolution/Android/obj/local/armeabi/libPlatform.a /Users/robbie/Documents/Apps/Revolution/Android/obj/local/armeabi/libstdc++.a /Users/robbie/Library/Frameworks/Android-NDK/platforms/android-4/arch-arm/usr/lib/libc.so /Users/robbie/Library/Frameworks/Android-NDK/platforms/android-4/arch-arm/usr/lib/libstdc++.so /Users/robbie/Library/Frameworks/Android-NDK/platforms/android-4/arch-arm/usr/lib/libm.so -Wl,--no-undefined -Wl,-z,noexecstack -L/Users/robbie/Library/Frameworks/Android-NDK/platforms/android-4/arch-arm/usr/lib -llog -lGLESv1_CM -lstdc++ -Wl,-rpath-link=/Users/robbie/Library/Frameworks/Android-NDK/platforms/android-4/arch-arm/usr/lib -lsupc++ -o /Users/robbie/Documents/Apps/Revolution/Android/obj/local/armeabi/libFinal.so
/Users/robbie/Documents/Apps/Revolution/Android/obj/local/armeabi/libPlatform.a(ATexture.o): In function `ATexture':
/Users/robbie/Documents/Apps/Revolution/Android/jni/SpinTap/ATexture.cpp:9: undefined reference to `TextureRenderer::TextureRenderer(unsigned int)'
/Users/robbie/Documents/Apps/Revolution/Android/jni/SpinTap/ATexture.cpp:9: undefined reference to `TextureRenderer::TextureRenderer(unsigned int)'
EDIT2： TextureRenderer是图形，其中包括
TextureRenderer is in Graphics, which is included.
有没有人有一个想法，为什么它不能工作，如何解决它？
Does anyone have an idea why it may not be working and how to fix it?
推荐答案
这看起来像问题我订单联的。
This looks like an order-of-linking issue to me.
您的命令行是：
arm-linux-androideabi-g++ -Wl,-soname,libFinal.so -shared \
libBase.a libFramework.a libGraphics.a libPlatform.a -o libFinal.so
和误差
libPlatform.a(ATexture.o): In function `ATexture':
ATexture.cpp:9: undefined reference to `TextureRenderer'
ATexture.cpp:9: undefined reference to `TextureRenderer'
TextureRenderer是图形。但libGraphics是libPlatform在命令行之前。 G ++将搜索每个库，以解析外部引用给他们，加载功能的顺序在命令行上。它会读取libGraphics一次，加载解析外部引用，并移动到libPlatform的功能。
TextureRenderer is in Graphics. But libGraphics is before libPlatform on the command line. g++ will search each library on the command line in the order they are given, loading functions to resolve external references. It will read libGraphics once, load the functions that resolve external references and move on to libPlatform.
试着改变 LOCAL_STATIC_LIBRARIES：= $（MY_LOCAL_STATIC_LIBRARIES）到 LOCAL_STATIC_LIBRARIES：=平台图形框架基本，看看你上车。
Try changing LOCAL_STATIC_LIBRARIES := $(MY_LOCAL_STATIC_LIBRARIES) to LOCAL_STATIC_LIBRARIES := Platform Graphics Framework Base and see how you get on.
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