node-on-android: libnode.so for 32 bit is missing

• https://github.com/sjitech/nodejs-android-prebuilt-binaries

  • https://github.com/sjitech/nodejs-android-prebuilt-binaries/tree/master/nodejs-7.8.0-android-arm-full

• https://github.com/sjitech/build-nodejs-for-android

  • Dockerfile for building on Android https://github.com/sjitech/build-nodejs-for-android/blob/master/Dockerfile
    • https://github.com/sjitech/android-gcc-toolchain/blob/master/Dockerfile
      • https://github.com/sjitech/ubuntu-non-root-with-utils/blob/master/Dockerfile
        • FROM ubuntu

Hi - I managed to compile a version of node (from master - 9.0.0?) on a Samsung Galaxyy Tab A SM-T280 tablet running Android 5.1.1 Cortex A7 CPU - it is armeabi-v7a, compiled via termux.

Here is my commit with the shared lib if anyone needs it. I followed @mafintosh’s steps to create the node shared lib.

https://github.com/bunsenbrowser/cordova-node-plugin/commit/bb8969098537e46a1ea0294fb95102cbe1168a57

I haven’t been able to test it correctly - I think I also may need to make the other shared lib - libc++_shared.so - but haven’t had a chance to figure out that process.

Thanks a lot to @mafintosh for leading the way for node on android and to @aschrijver for his perseverence and extremely useful list of the many ways to try to compile node on android.

Here are my notes - they are based on the steps @mafintosh made above:

https://github.com/node-on-mobile/node-on-android/issues/4#issuecomment-318919220

pkg install git python2
apt install clang clang++ g++
pkg install make
pkg install zip
downloaded zip of node from https://github.com/nodejs/node/archive/master.zip
cd /usr/bin
ln -s python2 python

Configure

python configure --without-snapshot --openssl-no-asm --shared --dest-os=android
Then in deps/cares/config/android/ares_config.h comment out

#define HAVE_GETSERVBYPORT_R 1
And run make (will take a while). Remember to have Termux aquire a wake lock so your phone doesnt go to sleep

Shared lib is out/Release/lib.target/libnode.so.57

hmm, so node has an android-configure script, with this comment at the top:

# In order to cross-compile node for Android using NDK, run:
#   source android-configure <path_to_ndk> [arch]
#
# By running android-configure with source, will allow environment variables to
# be persistent in current session. This is useful for installing native node
# modules with npm. Also, don't forget to set the arch in npm config using
# 'npm config set arch=<arch>'

so this seemed to work:

./android-configure ~/android-sdk/ndk-bundle/ arm --shared

remember to include “–shared” so that it becomes a shared object