Install node.js on ar750s

jleroux · December 18, 2018, 12:54pm

I just got my ar750s and want to use it as an iot router. I will need to install node.js for this. Are there any instructions how to do this?
Thanks

alzhao · December 18, 2018, 1:13pm

In AR300M 2.264 firmware there is nodejs.
But few peple used that and we didn’t compile this in later versions.

Need to modify the toolchain in order to support nodejs.

jleroux · December 18, 2018, 6:30pm

would it be possible to get node.js in the next versions. I guess it could be disabled by default if not used that frequent.

jleroux · December 21, 2018, 4:38pm

can someone provide build instructions for building node for AR71xx? which ./configure options do you use?
Thanks

jleroux · December 24, 2018, 1:04pm

I followed this process:

I am able to build a node ipk which installs on the ar750s but when you run node you get an illegal instruction. I did compile with Mips FPU emulator.
Any suggestions?
Thanks

alzhao · December 25, 2018, 5:59am

Did you compile your own firmware for AR750s?

The FPU is option in kernel and you need to enable this in menuconfig

nopro404 · December 26, 2018, 7:35am

I wanted to share that I asked upstream OpenWRT people to enable MIPS FPU by default, but they are reluctant to do so because it takes an extra 54k in the kernel… and they are focused on keeping devices with only 4MB of storage working with no care of adding it back to device configurations in the nand directory that it should clearly be enabled for. In fact the patch that disables it was specifically for low memory targets, and in the patch it says it should not be enabled unless you KNOW you need it!

github.com

openwrt/openwrt/blob/860de2e1aa9deac7dce76b7f85cb5fcfbba00468/target/linux/generic/pending-4.14/304-mips_disable_fpu.patch

From:   Manuel Lauss <manuel.lauss@gmail.com>
Subject: [RFC PATCH v4 2/2] MIPS: make FPU emulator optional

This small patch makes the MIPS FPU emulator optional. The kernel
kills float-users on systems without a hardware FPU by sending a SIGILL.

Disabling the emulator shrinks vmlinux by about 54kBytes (32bit,
optimizing for size).

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
---
v4: rediffed because of patch 1/2, should now work with micromips as well
v3: updated patch description with size savings.
v2: incorporated changes suggested by Jonas Gorski
    force the fpu emulator on for micromips: relocating the parts
    of the mmips code in the emulator to other areas would be a
    much larger change; I went the cheap route instead with this.

 arch/mips/Kbuild                     |  2 +-
 arch/mips/Kconfig                    | 14 ++++++++++++++

This file has been truncated. show original

This should not be a problem for any GL-iNet device. Please enable it by default on all your builds in the future.

jleroux · December 27, 2018, 4:35pm

Thanks.
I managed by creating my own firmware build with FPU emulation.

moko · June 15, 2021, 6:31am

Hi jleroux, I have the exact same issue here, but 0 experience building firmwares…could you please point to some instructions on how to do it and what to change in order to install node? or may you even have this firmware file and share it? that would be awasome! thanksss!