How to crosscompile form debian 64bit to ARM 32bit?

[z0nk]

I am trying to cross compile my node-addon.
using the following configure command: node-gyp --arch arm --host_arch=arm --arm_fpu=vfpv2 configure
The config.gypi File looks correct but I get the following error if i try to use the addon:

module.js:356
Module._extensions[extension](this, filename);
Error: /home/pi/site/test/build/Release/myaddon.node: wrong ELF class: ELFCLASS64
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Module.require (module.js:364:17)
at require (module.js:380:17)
at Object. (/home/pi/temp/website/app.js:14:30)
at Module._compile (module.js:456:26)
at Object.Module._extensions..js (module.js:474:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Function.Module.runMain (module.js:497:10)

And if I try to compile the addon nativ on my raspberry I get the following error:
cc1plus: error: unrecognized command line option ‘-std=c++11’

I cant find anything to solve this problem. Can someone help?
thanks!

[z0nk]

Native compilation works after updating g++ and gcc from 4.6 to 4.7.2-5.
Cross compilation would still be nice.

[jandrieu]

I think you are just missing an '=' sign. Specify --arch=arm. Also, make sure you have your cross-compiler prefixes configured:

$ export AR=arm-unknown-linux-gnueabi-ar
$ export CC=arm-unknown-linux-gnueabi-gcc
$ export CXX=arm-unknown-linux-gnueabi-g++
$ export LINK=arm-unknown-linux-gnueabi-g++

Probably the best write up of this is at http://n8.io/cross-compiling-nodejs-v0.8/ although the --arch=arm is here: https://groups.google.com/forum/#!topic/nodejs/sANqg3PsZQU

[maitreyi-timesys]

I am trying to generate arm specific node-sqlite3 addon by following commands
1- Have set the env by sourcing the env generated from Toolchain
to set following
echo $CC
arm-poky-linux-gnueabi-gcc -march=armv7-a -mfloat-abi=softfp -mfpu=neon -mtune=cortex-a9 --sysroot=/home/user/ansbld/tmp/deploy/sdk/toolchain/sysroots/cortexa9-vfp-neon-poky-linux-gnueabi
echo $CXX
arm-poky-linux-gnueabi-g++ -march=armv7-a -mfloat-abi=softfp -mfpu=neon -mtune=cortex-a9 --sysroot=/home/user/ansbld/tmp/deploy/sdk/toolchain/sysroots/cortexa9-vfp-neon-poky-linux-gnueabi

2- Now invoking npm
sudo npm install sqlite3 --target_arch=arm --build-from-source=sqlite3 --target_platform=linux

This generates the lib/binding/node-v14-linux-arm/node_sqlite3.node but this is not compiled for arm platform rather for host environment

I have also tried using node-gyp and node-pre-gyp
but no success so far

[bnoordhuis]

Cross-compilation is not really supported at the moment, see the discussion in #829, particularly #829 (comment). I'll close out this issue in favor of that one.