Missing symbol running v10 on s390x

[nealef]

• Version: v10
• Platform: s390x
• Distribution: RHEL 7.6

When running on RHEL 7 running the node command results in a message: /lib64/libstdc++.so.6: version `GLIBCXX_3.4.20' not found.

[mhdawson]

@nodejs/platform-s390

@nealef have you tried on other versions of RHEL 7 as well ?

@gdams can you see if you can recreate on our internal RHEL 7 machines?

[nealef]

Versions (7.5)? Or platforms (x86_64)?

[mhdawson]

I meant versions like 7.5 etc. Trying to narrow down were we should try to reproduce. Understood that this is reported as an s390x only issue.

[nealef]

Yes, same problem on 7.5 as well. We had a similar problem with openJDK-11 which also uses the J9 engine from IBM.

[nealef]

It works on Ubuntu:

NAME="Ubuntu"
VERSION="18.04.1 LTS (Bionic Beaver)"

This system uses gcc 7.3.0 though.

[richardlau]

Node.js 10 requires gcc 4.9.4 or higher: https://github.com/nodejs/node/blob/v10.x/BUILDING.md#supported-toolchains

According to https://access.redhat.com/solutions/19458 the default gcc on RHEL7 is 4.8.x.

[mhdawson]

x86 has the RHEL Developer toolset and more importantly a centos version that makes things easier on x86 so that's what I expected.

For s390, the community builds/tests on RHEL72 but needs the 4.9.4 compiler due to requirements from V8.

[mhdawson]

Assuming 7.6 still has 4.8.x as mentioned by @richardlau I'm not surprised that you need to add the 4.9.4 compiler or at least libstdc++ from the 4.9.4 compiler, was just not expecting it to be reported as needing something from libc.

[nealef]

Assuming 7.6 still has 4.8.x as mentioned by @richardlau I'm not surprised that you need to add the compiler or at least libstdc++ from the 4.9.4, was just not expecting it to be reported as needing something from libc.

My mistake with libc. It is libdstdc++ from gcc.

[mhdawson]

@nealef ah, that makes sense then. You will need to add the updated libstdc++ to your ld_library_path as that is expected behaviour. Unfortunate but we did not want to start statically linking things in a way that is different for s390x than for other platforms so it's one of the requirements for running 10.x on versions that have a default compiler earlier than 4.9.X

[nealef]

But there is no 4.9.x for RHEL on s390x. x86_64 CentOS 7 also only has 4.8.5. From where did your dev systems get the updated libstdc++?

[mscdex]

Perhaps from a devtoolset?

[richardlau]

I think we're building it from source: nodejs/build#1157

[nealef]

Perhaps from a devtoolset?

Do you have a RHEL7 (x86_64) where it's running? If so, would you rpm -q -f rpm -q -f /lib64/libstdc++.so.*

[nealef]

I saw from #1157 that you're installing your own 4.9.4. I also mentioned in that issue that SCLO is available for s390x. I believe RHEL now has a subset which includes devtoolset-6/7/8. It's also available from our CentOS clone ClefOS.

[richardlau]

Is this closeable now?

[nealef]

I think so. I had been trying with the RH SCLO devtoolset-7 to provide the appropriate library but had a couple of unrelated issues. I am curious as to what is in 4.9.4 that is required?

[richardlau]

I think so. I had been trying with the RH SCLO devtoolset-7 to provide the appropriate library but had a couple of unrelated issues. I am curious as to what is in 4.9.4 that is required?

For reference, #13466 is where the version was bumped from 4.8.5 to 4.9.4.