Node Error on AIX

[a4amitava]

The node command on AIX v7.1 is not working , getting the below error . Please help !

exec(): 0509-036 Cannot load program node because of the following errors:
0509-130 Symbol resolution failed for node because:
0509-136 Symbol ZNKSt9type_infoeqERKS (number 345) is not exported from
dependent module /opt/freeware/lib/pthread/ppc64/libstdc++.a[libstdc++.so.6].
0509-192 Examine .loader section symbols with the
'dump -Tv' command.

[shellberg]

All current LTS Node.js levels have a minimum dependency on the GNU 4.8.x c++ libraries, because the binaries are compiled with GNU compilers, not XLC.

Check that you have those 32-/64-bit libraries installed (it will install multiple libraries in a sub-directory structure under /opt/freeware/lib depending on where POSIX thread support is needed). If not you can obtain the needed libraries from the Bull Freeware site.

[a4amitava]

Hi ,

I checked libstdc++.a is at location

/opt/freeware/lib/pthread/ppc64/

Also, executed

ldd node cmd

and all the dependency shown without error . However , getting the same below error when executing node - version . Please help .

node - v
exec(): 0509-036 Cannot load program node because of the following errors:
0509-130 Symbol resolution failed for node because:
0509-136 Symbol ZNKSt9type_infoeqERKS (number 345) is not exported from
dependent module /opt/freeware/lib/pthread/ppc64/libstdc++.a[libstdc++.so.6].
0509-192 Examine .loader section symbols with the
'dump -Tv' command.

_```
Note : g++ -version returns the below version
gcc version 6.3.0 (GCC)

[shellberg]

Can you provide the output of:

lslpp -Lq | grep c++

and

ls -l /opt/freeware/lib/pthread/ppc64/

(specifically check that the linked file(s) is(are) present, and thus that the libstdc++.a symbolic link is valid)

And, I suspect that you actually ran 'gcc --version', rather than 'g++ --version'?
gcc/g++ v6.x is later than the v4.8 minimum dependency, but it still should provide libstdc++.so.6 support.

I'll see if I can get an installation based on gcc/g++ v6.3 working... check re-creation. Which build of node are you trying to use?

[a4amitava]

Hi Stephen ,
I am using node node-v6.10.1-aix-ppc64 . and below details the run output .

lslpp -Lq | grep c++ is throwing error "error: incorrect format: unknown tag" .
So executed rpm -qa | grep c++ and returned below

libstdc++-devel-6.3.0-1.ppc
libstdc++-6.3.0-1.ppc
gcc-c++-6.3.0-1.ppc

The another cmd ls -l /opt/freeware/lib/pthread/ppc64/ returns -

abiswas@ttwfmp04> ls -l /opt/freeware/lib/pthread/ppc64/
total 0

lrwxrwxrwx 1 root system 64 Aug 18 03:04 libatomic.a -> ../../gcc/powerpc-ibm-aix7.1.0.0/6.3.0/pthread/ppc64/libatomic.a
lrwxrwxrwx 1 root system 63 Aug 18 03:04 libgcc_s.a -> ../../gcc/powerpc-ibm-aix7.1.0.0/6.3.0/pthread/ppc64/libgcc_s.a
lrwxrwxrwx 1 root system 64 Aug 18 03:04 libstdc++.a -> ../../gcc/powerpc-ibm-aix7.1.0.0/6.3.0/pthread/ppc64/libstdc++.a

[gireeshpunathil]

I fear we may not have tested with this level of crt / c++rt.
@shellberg I can test and debug, can you please internally setup a system of this and ping me details? If you are already on it, ignore me and go ahead, thanks.

[shellberg]

Hi @gireeshpunathil : yeah, I'm already on it! I've currently had a clean AIX 7.1 instance provisioned remotely, and I'm just fighting through the issues of getting the pre-requisite RPMs installed given we know that trying to maintain two (non-native) sets of GCC compilers and toolchains present on the same server environment is fraught with issues (based on prior past experience) : this is UNIX, so its possible, but just not straightforward.
And, I suspect when this issue is verified that we will need some further WPAR instances with later GCC compilers and toolchains in our testing infrastructure... lets discuss that offline.

[shellberg]

@a4amitava : OK, I've successfully verified/recreated the issue. Looking at the range of symbols that are exported by libstdc++ v6, I'm not expecting this to have a workaround ; I suspect that this will need a re-built node binary by GCC / g++ v6 tooling. However, we'll continue to dig into this and discuss if there are any other options available.

[a4amitava]

@shellberg, Thanks for confirming the issue with v6. Can you suggest which version of gcc/g++ we should install in AIX 7.1 for node v6.10.1+

[shellberg]

Yes, certainly!
Any of the GCC/g++ 4.8.x levels. I'm pretty sure that we have instances in use (build, test) that cover all the 4.8.x binary bundles that Bull Freeware host. And, I know that I've personally installed 4.8.4 GCC / g++ into our SVT test infrastructure, and those do work.

In terms of due diligence, I'll try and check other sources of freeware packages (perzl.org) and see if I can verify that its not just a badly built package from Bull Freeware...

[gibfahn]

@a4amitava okay, it looks like you've uncovered an issue with Node on AIX! Thanks a lot for the helpful info. Now that this is a confirmed bug I'll reopen nodejs/node#14785.

I'll leave this thread open until you confirm that you've got it working with gcc 4.8.x, feel free to close it when you feel that that is resolved.

[shellberg]

Conducted further investigation today.
The problem appears to be introduced with the libstdc++ v5.x support, which happens to coincide with the introduction of C++11 support via a Dual ABI as supported by dual namespaces. We can recreate the issue with a standalone test case : its OK if compiled and run with the 5.4.0 gcc / g++ / libstdc++ combination, but fails if compiled with 4.9.2 gcc / g++ tooling and running against 5.4.0 libstdc++. Quite simply, it would seem that the backwards compatibility is lost across these v5 (and later) Freeware runtime builds, which might constitute their build defect - we'll file a report for their investigation.

As threatened, I also looked at other sources of freeware binary packages. And, as far as I could determine neither Perlz.org or the AIX Toolkit actually host any gcc / g++ or libstdc++ support later than 4.8.x. It seems that the only build binary packages for later/current gcc/g++ tooling is currently via Bull Freeware, albeit potentially vulnerable to this apparent backward compatibility problem.

[gibfahn]

@shellberg could you post in nodejs/node#14785 instead?

[a4amitava]

Hi Team ,
Wanted to check with you , whether npm can install angular cli on AIX v7.1 .
Please check if the below npm command works on AIX .

> npm install -g @ angular/cli 

https://github.com/angular/angular-cli

[shellberg]

@a4amitava : Yes, I can install @angular/cli to build the ng binary on AIX 7.1.
However, your command has an extra space between the '@' and the scoped package name... it should be:

npm install -g @angular/cli

The node / npm aspects are fine... there were some issues (pre-requisite tooling in my clean environment) during the node-gyp installation of the native components, but they were not hard to solve. Specifically, I had to manually associate 'cc' to 'gcc' for the C compiler, but that was about it (and could also be achieved in varying ways).

( I used gcc / g++ / libstdc++ 4.9.2 from Bull Freeware )