libnode.so for 32 bit is missing

[dominictarr]

okay it looks like I got it installed, it says it built successfully, but when I tried to run it on my phone I got this error:

Error:error: '../../../../src/main/jniLibs/armeabi-v7a/libnode.so', needed by '../../../../build/intermediates/cmake/debug/obj/armeabi-v7a/libnative-lib.so', missing and no known rule to make it

I'm trying to figure out where libnode.so comes from?
okay, a bit of searching led me here: nodejs/node#14158

gonna check that out...

btw, I changed line 14 of app/build.gradle to

abiFilters 'armeabi-v7a', 'arm64-v8a'

[dominictarr]

do I have to build libnode.so or can I download it from somewhere?

[dominictarr]

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

[simonhochrein]

It looks like 32-bit is not supported currently.

[Seanmclem]

It says only ARM64

[mafintosh]

@dominictarr did it compile? Would be super helpful if you could share the shared lib with me so I can package this up so we dont need android studio. Here is how I compiled in Termux otherwise

Building Node.js as a shared library in Termux

Install deps

pkg install git python2 #and the compilers

Clone the node repo

git clone git://github.com/nodejs/node.git
cd node
git checkout v8.2.1

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

[dominictarr]

oh yeah @mafintosh okay i'll try that.

[dominictarr]

wow, node's git repo is 1.9gb!

[dominictarr]

I managed to get it on my phone with 20 something mb to spare... not sure if this will work to be honest...

[ralphtheninja]

Maybe you could use curl instead to skip the complete history, e.g.

$ curl -sL https://github.com/nodejs/node/archive/v8.2.1.tar.gz > node.tar.gz

[ralphtheninja]

Or use --depth with git clone

$ git clone --depth=2 -b v8.x https://github.com/nodejs/node.git

[dominictarr]

@ralphtheninja I tried a shallow clone and it didn't work because first it clones it into .git then it checks it out which uses double. In the end what I did was local clone on my laptop to _node, then tar -c _node | ssh android@... tar -x which extracts it inplace without first placing the tar file on disk! it's now compiling in screen.

[dominictarr]

actually my phone has 20 gb available, but not within the linux container, and not sure how to fix that.

[dominictarr]

I left it going overnight, and it ended with this error:

/usr/bin/ld: cannot find -llog
collect2: error: ld returned 1 exit status
deps/openssl/openssl-cli.target.mk:195: recipe for target '/home/android/_node/out/Release/openssl-cli' failed
make[1]: *** [/home/android/_node/out/Release/openssl-cli] Error 1
rm 100e139f03cb0d4f87114c8730081b12e85b3487.intermediate
Makefile:76: recipe for target 'node' failed
make: *** [node] Error 2

hmm, okay, so it can't find a library... liblog? is this part of node? I'm guessing that there are probably way more errors like this behind it

[aschrijver]

@dominictarr Did you manage to build the 32bit library?

I've been trying many different things with ndk build, but always run into errors somewhere. My latest try is even with a r17 ndk canary build: nodejs/node#14771

[dominictarr]

I didn't get passed that one. @mafintosh said he was gonna try on his rpi, but havn't heard back about that yet.

[aschrijver]

I created a number of NodeJS issues on building for android. Hopefully will result in a solution.

Meantime I am looking at J2V8 who have a very nice cross-compile build system PR based on Docker and Vagrant in the works and almost ready to be merged: eclipsesource/J2V8#327

PS Found this to be helpful script addition:

# see # see https://github.com/nodejs/node/issues/3074
sed -i 's/#define HAVE_GETSERVBYPORT_R 1/#undef HAVE_GETSERVBYPORT_R/' deps/cares/config/android/ares_config.h 

[aschrijver]

I spent yesterday compiling and trying different options. My findings are documented on stackoverflow: - Viable options to running NodeJS on Android (Aug 2017)

[aschrijver]

I can make successful builds of 7.4.0 and 7.9.0 (max.) as a static libnode.a included in libj2v8.so. Will now try other node versions. If you just perform the nodejs build step and tweak the script a bit, this might work from you laptop to create a libnode.so.

Update: Probably not that simple. When running only the nodejs build step and --shared in the configure setting gives errors..

[chrisekelley]

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.

bunsenbrowser/cordova-node-plugin@bb89690

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

[aschrijver]

@chrisekelley thank you, i am honoured :)

sorry for the late response. i am building my new tech startup called innercircles
a non-profit movement for people that care about world and happiness 😃

i expect to pick up the thread sometime later and persevere some more, ha ha :)

you keep rocking!

[avaer]

I don't know about 32 bit lib builds, but I got the procedure for 64 bit ones working with only minimal changes to node 9.4.0: https://github.com/modulesio/node-android-lib

This presumes you have a real Android 64 device to do it on. I haven't tried emulators.

[westurner]

• 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

[mario6714]

Hi, any help for create libnode.so using the most recent node in android? Thanks

This not work for my:

@dominictarr did it compile? Would be super helpful if you could share the shared lib with me so I can package this up so we dont need android studio. Here is how I compiled in Termux otherwise

Building Node.js as a shared library in Termux

Install deps

pkg install git python2 #and the compilers

Clone the node repo

git clone git://github.com/nodejs/node.git
cd node
git checkout v8.2.1

Configure

python configure --without-snapshot --openssl-no-asm --shared --des