Hello,
I’ve been trying to understand how to build a native extension for Android. So far, I’ve only been able to build an application with the VideoPlayer extension added. However, any change I make to the .cpp file creates an error with the description:
"arm-linux-androideabi-ar rcs /var/extender/builds/build7226284688527467840/lib218f749f-96af-4dbd-acf1-4dd982e2ac25.a "
Even adding an empty line to a function in the .cpp generates this error. I also get this error with the example extension in the manuals.
sven
March 15, 2017, 5:04pm
2
Could you right click on that error and paste it here? There should be a more detailed error log returned, but the editor does not currently display it fully in the error-panel.
1 Like
The copied description is:
Description Resource Path Location Type
arm-linux-androideabi-g++ -c -g -gdwarf-2 -fpic -ffunction-sections -fstack-protector -Wno-psabi -march=armv7-a -mfloat-abi=softfp -mfpu=vfp -fomit-frame-pointer -fno-strict-aliasing -finline-limit=64 -fno-exceptions -funwind-tables --sysroot=/opt/android/android-ndk-r10e/platforms/android-14/arch-arm -DANDROID -Wa,–noexecstack -DDM_PLATFORM_ANDROID -DLUA_BYTECODE_ENABLE -D__ARM_ARCH_5__ -D__ARM_ARCH_5T__ -D__ARM_ARCH_5E__ -D__ARM_ARCH_5TE__ -I/var/extender/sdk/0d7f8b51658bee90cb38f3d651b3ba072394afed/defoldsdk/include -I/var/extender/sdk/0d7f8b51658bee90cb38f3d651b3ba072394afed/defoldsdk/sdk/include -I/opt/android/android-ndk-r10e/sources/android/native_app_glue -I/opt/android/android-ndk-r10e/sources/android/cpufeatures -I/opt/android/tmp/android-ndk-r10e/platforms/android-14/arch-arm/usr/include -I/opt/android/android-ndk-r10e/sources/cxx-stl/gnu-libstdc++/4.8/include -I/opt/android/android-ndk-r10e/sources/cxx-stl/gnu-libstdc++/4.8/libs/armeabi-v7a/include /var/extender/builds/build420198880997474392/main.cpp -o/var/extender/builds/build420198880997474392/main_tmp0574f0ca-5afb-46a2-8432-6c3af8e12681.o
arm-linux-androideabi-g++ --sysroot=/opt/android/android-ndk-r10e/platforms/android-14/arch-arm -lEGL -lGLESv1_CM -lGLESv2 /var/extender/builds/build420198880997474392/main_tmp0574f0ca-5afb-46a2-8432-6c3af8e12681.o -o /var/extender/builds/build420198880997474392/libdmengine.so -Wl,-soname=libdmengine.so -DDM_PLATFORM_ANDROID -DLUA_BYTECODE_ENABLE -D__ARM_ARCH_5__ -D__ARM_ARCH_5T__ -D__ARM_ARCH_5E__ -D__ARM_ARCH_5TE__ -Wl,–fix-cortex-a8 -Wl,–no-undefined -Wl,-z,noexecstack -landroid -fpic -z text -L/var/extender/builds/build420198880997474392 -Wl,-Bstatic -le6d20738-7dc4-40cb-954c-5004309b02b6 -L/var/extender/sdk/0d7f8b51658bee90cb38f3d651b3ba072394afed/defoldsdk/lib/armv7-android -L/var/extender/sdk/0d7f8b51658bee90cb38f3d651b3ba072394afed/defoldsdk/ext/lib/armv7-android -L/opt/android/android-ndk-r10e/sources/cxx-stl/gnu-libstdc++/4.8/libs/armeabi-v7a -Wl,-Bstatic -lengine -lwebviewext -ladtruthext -lfacebookext -liapext -lpushext -liacext -lrecord_null -lgameobject -lddf -lresource -lgamesys -lgraphics -lphysics -lBulletDynamics -lBulletCollision -lLinearMath -lBox2D -lrender -lscript -lluajit-5.1 -lextension -lhid -linput -lparticle -lrig -ldlib -ldmglfw -lgui -ltracking -lcrashext -lsound -lopenal_soft -ltremolo -lliveupdate -Wl,-Bdynamic -lOpenSLES -lgnustl_static -lm -llog -lc -Wl,–no-undefined -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now -shared
ext.manifest /cleanTests/content/myextension line 1 Problem
sven
March 15, 2017, 5:13pm
4
The log actually tells you the error, even if it might be a bit lost in all the output:/var/extender/builds/build420198880997474392/main.cpp:27: error: undefined reference to 'MyExtension'
What is the name of the extension as written in your ext.manifest file?
The manifest only contains
name: “MyExtension”
The code should be fine since I just copied it as is from the manual.
sven
March 16, 2017, 3:18pm
6
Ahhh I see, super strange! Could you try adding me to the project so I could give it a try? Add my work email: sven.andersson at king.com
Done! The project is called “cleanTests”
sven
March 16, 2017, 3:39pm
8
I was able to build it right after I checked out the project, for both OSX and Android. What platform are you running the editor on?
Thats pretty weird, I’m running the editor on Windows 10 and bundling the project for Android.
sven
March 16, 2017, 3:42pm
10
I’ll give it a try on a Windows machine as well.
sven
March 16, 2017, 3:57pm
11
Interesting, I get the same error as you when I run it on Windows. I suspect this might have something to do with the issue @Mathias_Westerdahl is currently working on, will talk to him. Thanks for reporting the issue, we will look into it!
4 Likes
I see, didn’t know whether I was doing something wrong. Hopefully it will be figured out soon, thanks for the help!
4 Likes
