如何调试cocos2d-x 3本机代码在Android设备上 [英] How to debug cocos2d-x 3 native code on android device

问题描述

我找不到任何cookbook /教程如何构建在调试构建一个cocos2d-x 3.1项目为Android和如何调试它直接在设备上。请通过指出步骤来帮助。

I could not find any cookbook/tutorial how build in debug build a cocos2d-x 3.1 project for Android and how to debug it directly on device. Please help by pointing out steps.

我所做的和我遇到了什么问题：

What I do and what problems I have:

• cd proj.android


• cocos compile -p android -m debug --ndk-mode NDK_DEBUG = 1 （使用调试信息构建）


• cocos run -p android -m debug 在设备上部署


• 在设备上运行应用


• cd jni


• ndk-gdb

• cd proj.android
• cocos compile -p android -m debug --ndk-mode NDK_DEBUG=1 (to build with debug info)
• cocos run -p android -m debug to deploy on device
• run app on the device
• cd jni
• ndk-gdb

：

Nareks-MacBook-Pro:jni Narek$ ndk-gdb
jni/Android.mk:67: *** Android NDK: Aborting.    .  Stop.
ERROR: The device does not support the application's targetted CPU ABIs!
       Device supports:  armeabi-v7a armeabi
       Package supports: Android NDK: 

进入 Application.mk 我已添加：

APP_ABI := armeabi armeabi-v7a
APP_PLATFORM := android-10

但它没有帮助。我做错了什么？

but it did not help. What I do wrong?

EDIT：添加 ndk-build DUMP_APP_ABI 命令的结果在项目中调用 jni 目录：

Adding result of ndk-build DUMP_APP_ABI command called in projects jni directory:

Nareks-MacBook-Pro:jni Narek$ ndk-build DUMP_APP_ABI 
Android NDK: /Users/Narek/NoorGames/Games/test2/proj.android/jni/Android.mk: Cannot find module with tag '.' in import path    
Android NDK: Are you sure your NDK_MODULE_PATH variable is properly defined ?    
Android NDK: The following directories were searched:    
Android NDK:         
/Users/Narek/NoorGames/Games/test2/proj.android/jni/Android.mk:67: *** Android NDK: Aborting.    .  Stop.

推荐答案

这里是step-by- cocos2d-x 3.x在Android设备上。

Here is the step-by-stet tutorial to debug cocos2d-x 3.x on Android device. Please correct or optimize my steps if you do it in better way.

1. cd proj.android


2. cocos compile -p android -m debug --ndk-mode NDK_DEBUG = 1


3. cocos run -p android -m debug 在设备上部署（有时它会重建，我不知道为什么）。此命令卸载以前的安装，安装新的安装并在设备上运行应用程序。


4. 确保在 proj.android/libs/armeabi 目录中有以下文件 gdb.setup，gdbserver，libcocos2dcpp.so


5. 还要确保 /proj.android/jni/obj/local/armeabi 目录中有 app_process，gdb.setup，libc.so，linker li>
   
6. ndk-gdb （重要的是，这应该在项目目录中调用，而不是在 jni 目录）

1. cd proj.android
2. cocos compile -p android -m debug --ndk-mode NDK_DEBUG=1 (to build with debug info)
3. cocos run -p android -m debug to deploy on device (sometimes it rebuilds, and I don't know why). This command uninstalls former installation, installs the new one and runs the app on the device.
4. make sure in proj.android/libs/armeabi directory you have the following files gdb.setup, gdbserver, libcocos2dcpp.so
5. also make sure that in /proj.android/jni/obj/local/armeabi directory you have app_process, gdb.setup, libc.so, linker
6. ndk-gdb (important! this should be called in projects directory, not in jni directory)

如果它工作，那么恭喜！但在此步骤中，您可能会看到以下错误消息：

If it worked then congratulations! But in this step you may see such error message:

Nareks-MacBook-Pro:proj.android Narek$ ndk-gdb
jni/Android.mk:67: *** Android NDK: Aborting.    .  Stop.
ERROR: The device does not support the application's targetted CPU ABIs!
       Device supports:  armeabi-v7a armeabi
       Package supports: Android NDK: 

不要担心:)。让我们看看有什么错误：

Don't worry :). Lets see what is wrong:

1. 这里是 ndk-build DUMP_APP_ABI jni 目录中调用$ c>命令：

1. here is the result of ndk-build DUMP_APP_ABI command called in project's jni directory:

Nareks-MacBook-Pro：jni Narek $ ndk-build DUMP_APP_ABI
Android NDK：/Users/Narek/NoorGames/Games/test2/proj.android/jni/Android.mk：在导入路径中找不到带有标签'。'的模块

Android NDK：确定您的NDK_MODULE_PATH变量已正确定义？

Android NDK：搜索以下目录：

Android NDK：

/ Users / Narek / NoorGames / Games / test2 / proj.android / jni / Android.mk：67：*** Android NDK：Aborting。 。停止。

Nareks-MacBook-Pro:jni Narek$ ndk-build DUMP_APP_ABI Android NDK: /Users/Narek/NoorGames/Games/test2/proj.android/jni/Android.mk: Cannot find module with tag '.' in import path
Android NDK: Are you sure your NDK_MODULE_PATH variable is properly defined ?
Android NDK: The following directories were searched:
Android NDK:
/Users/Narek/NoorGames/Games/test2/proj.android/jni/Android.mk:67: *** Android NDK: Aborting. . Stop.

正如您可以看到 NDK_MODULE_PATH 缺失。要获取该值，请执行以下操作。转到您编译代码的步骤。在命令 cocos compile -p android -m debug --ndk-mode NDK_DEBUG = 1 的第一行执行你可以看到这样：

As you can see NDK_MODULE_PATH is missing. For obtaining the value do the following. Go to step where you compiled code. In first linse of execution of command cocos compile -p android -m debug --ndk-mode NDK_DEBUG=1 you can see something like this:

Runing command: compile
Building mode: debug
building native
NDK build mode: NDK_DEBUG=1
The Selected NDK toolchain version was 4.8 !
running: '/Users/Narek/NoorGames/android-ndk-r9d/ndk-build -C /Users/Narek/NoorGames/Games/test2/proj.android -j1 NDK_MODULE_PATH=/Users/Narek/NoorGames/Games/test2/proj.android/../cocos2d:/Users/Narek/NoorGames/Games/test2/proj.android/../cocos2d/cocos:/Users/Narek/NoorGames/Games/test2/proj.android/../cocos2d/external'

1. 上面的日志可以看到 NDK_MODULE_PATH 的必要值。执行以下命令 export NDK_MODULE_PATH = / Users / Narek / NoorGames / Games / test2 / proj.android /../ cocos2d：/Users/Narek/NoorGames/Games/test2/proj.android/ .. /cocos2d/cocos:/Users/Narek/NoorGames/Games/test2/proj.android /../ cocos2d / external （注意不要复制我的路径）

1. copy from the log above you see the necessary value of NDK_MODULE_PATH. Execute the following command export NDK_MODULE_PATH=/Users/Narek/NoorGames/Games/test2/proj.android/../cocos2d:/Users/Narek/NoorGames/Games/test2/proj.android/../cocos2d/cocos:/Users/Narek/NoorGames/Games/test2/proj.android/../cocos2d/external (be attentive to copy your path not mine)

就是这样。现在在设备上运行游戏， cd proj.android ，调用 ndk-gdb ，你应该能够使用gdb 。

That's it. Now run game on device, cd proj.android, call ndk-gdb and you should be able to debug with gdb.

我个人寻找这类教程已经超过20天了。我希望你喜欢你的调试已经。 :)并感谢@VikasPatidar帮助您 ndk-build DUMP_APP_ABI 步骤！

I personally looked for this kind of tutorial already more than 20 days. I hope you enjoy your debugging already. :) And thank you @VikasPatidar for your help with ndk-build DUMP_APP_ABI step!

EDIT1：如您所评论的Vikas，您可以在 Android.mk NDK_MODULE_PATH c>文件如下：

As commented Vikas you can add NDK_MODULE_PATH in Android.mk file like this:

NDK_MODULE_PATH := $(LOCAL_PATH)/../../../../cocos
NDK_MODULE_PATH += $(LOCAL_PATH)/../../../../external

---

EDIT2：如果您的应用程式在这里崩溃，是一种非常强大且简单的方法来防止直接调试问题：

---

If your app crashed here is a very powerful and easy way to investigate the problem by preventing direct debugging:

adb logcat | $NDK_ROOT/ndk-stack -sym $PROJECT_PATH/obj/local/armeabi

。

这篇关于如何调试cocos2d-x 3本机代码在Android设备上的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！