Android NDK-armeabi vs armeabi-v7a文件夹 [英] Android NDK - armeabi vs armeabi-v7a folder

问题描述

有一些像我这样的问题.

There are some questions like mine.

为什么我需要将* .so文件放在armeabi-v7a和armeabi文件夹中?

为什么armeabi-v7a与另一个模块的armeabi冲突?

为什么要在armeabi代码上使用armeabi-v7a代码?

但是我还不清楚.我有很多.so文件用于armeabi和armeabi-v7a.

But I am not clear yet. I have many .so files for armeabi and armeabi-v7a.

//二进制文件

armeabi/libarmeabi-v7a-module1.so
armeabi/libarmeabi-v7a-module2.so

//Application.mk文件

// Application.mk file

APP_ABI := armeabi
APP_PLATFORM := android-19
APP_STL := gnustl_shared

//Android.mk文件

// Android.mk file

include $(CLEAR_VARS)
LOCAL_MODULE := module1
LOCAL_SRC_FILES := $(LOCAL_PATH)/armeabi/libarmeabi-v7a-module1.so
include $(PREBUILT_SHARED_LIBRARY)

include $(CLEAR_VARS)
LOCAL_MODULE := module2
LOCAL_SRC_FILES := $(LOCAL_PATH)/armeabi/libarmeabi-v7a-module2.so
include $(PREBUILT_SHARED_LIBRARY)

此设置在armeabi-v7a设备上可以正常使用.但是，当我在Application.mk文件中设置armeabi-v7a abi时，我的应用程序崩溃了.崩溃消息如下:

This settings work fine on armeabi-v7a devices. But my app crashes when I set armeabi-v7a abi in Application.mk file. Crash message is below:

A/libc:/Volumes/Android/buildbot/src/android/ndk-release-r16/external/libcxx/../../external/libcxxabi/src/abort_message.cpp:73:abort_message:断言调用了纯虚函数！"失败

A/libc: /Volumes/Android/buildbot/src/android/ndk-release-r16/external/libcxx/../../external/libcxxabi/src/abort_message.cpp:73: abort_message: assertion "Pure virtual function called!" failed

推荐答案

armeabi是armv5.不再受支持.您可以假装它不存在.

armeabi is armv5. It's no longer supported. You can just pretend it doesn't exist.

armeabi-v7a是armv7.这(至少要与arm64-v8a一起)是您要构建的.

armeabi-v7a is armv7. This (along with at least arm64-v8a) is what you should be building for.

您的应用程序崩溃的事实是另一个问题，错误消息告诉您发生了什么:正在调用一个纯虚函数.某些子类未实现其需要实现的虚函数.

The fact that your app is crashing is a different problem, and the error message tells you what's happening: there's a pure virtual function that's being called. Some child class isn't implementing a virtual function that it needs to implement.

还有第三个问题.您的 APP_STL 是 gnustl_shared ，但是错误消息表明您的其中一个库是使用libc ++构建的.这两个是不兼容的.您必须对整个应用程序使用相同的STL(并且由于使用了多个共享库，因此它必须是共享变体).

There's also a third problem. Your APP_STL is gnustl_shared, but the error message indicates that one of your libraries was built with libc++. These two are incompatible. You must use the same STL for the entire app (and since you use more than one shared library, it must be the shared variant).

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